阅读说明：本技术 一种协同式电磁加热供热系统 (Cooperative electromagnetic heating system ) 是由 詹国胜 李凯 于 2021-01-13 设计创作，主要内容包括：本发明公开了一种协同式电磁加热供热系统,包括两组电磁加热供水设备以及供热出水管和供热回水管；电磁加热供水设备包括电磁热水装置和保温水箱,保温水箱的循环出水管和循环进水管分别与电磁热水装置的加热进水管连接和加热出水管连接,且保温水箱设置有供热出水口和供热回水口；供热出水管的进水端分别与两组电磁加热供水设备中的供热出水口连接,供热回水管的出水端分别与两组电磁加热供水设备中的供热回水口连接,且两组电磁加热供水设备中的至少一个保温水箱的供热出水口和供热回水口设置有控制阀。上述方案能解决目前电磁锅炉因不能很好地适用于密集烘房区各种工况的加热效能调节而影响烟叶的烘烤质量及造成能源浪费的问题。(The invention discloses a cooperative electromagnetic heating heat supply system, which comprises two groups of electromagnetic heating water supply equipment, a heat supply water outlet pipe and a heat supply water return pipe; the electromagnetic heating water supply equipment comprises an electromagnetic hot water device and a heat preservation water tank, wherein a circulating water outlet pipe and a circulating water inlet pipe of the heat preservation water tank are respectively connected with a heating water inlet pipe and a heating water outlet pipe of the electromagnetic hot water device, and the heat preservation water tank is provided with a heat supply water outlet and a heat supply water return port; the water inlet end of the heat supply water outlet pipe is respectively connected with the heat supply water outlets of the two groups of electromagnetic heating water supply equipment, the water outlet end of the heat supply water return pipe is respectively connected with the heat supply water return ports of the two groups of electromagnetic heating water supply equipment, and the heat supply water outlet and the heat supply water return port of at least one heat preservation water tank of the two groups of electromagnetic heating water supply equipment are provided with control valves. Above-mentioned scheme can solve present electromagnetic boiler and influence the quality of baking of tobacco leaf and cause the extravagant problem of energy because of the heating efficiency who can not be applicable to various operating modes in bulk drying room district well adjusts.)

1. A cooperative electromagnetic heating heat supply system is characterized by comprising two groups of electromagnetic heating water supply equipment, a heat supply water outlet pipe and a heat supply water return pipe, wherein the heat supply water outlet pipe and the heat supply water return pipe are used for connecting each heat exchange equipment; the electromagnetic heating water supply equipment comprises an electromagnetic hot water device and a heat preservation water tank, wherein a circulating water outlet pipe of the heat preservation water tank is connected with a heating water inlet pipe of the electromagnetic hot water device, a circulating water inlet pipe of the heat preservation water tank is connected with a heating water outlet pipe of the electromagnetic hot water device, and the heat preservation water tank is provided with a heat supply water outlet and a heat supply water return port; the heat supply outlet pipe the end of intaking respectively with in the two sets of electromagnetic heating water supply equipment the heat supply delivery port is connected, the play water end of heat supply wet return respectively with in the two sets of electromagnetic heating water supply equipment the heat supply return water mouth is connected, just at least one in the two sets of electromagnetic heating water supply equipment holding water box the heat supply delivery port with the heat supply return water mouth is provided with the control valve.

2. The cooperative electromagnetic heating system according to claim 1, wherein the inner chamber of the holding water tank is provided with a partition layer extending in the transverse direction, and the inner chamber of the holding water tank is partitioned by the partition layer to form an upper chamber and a lower chamber; the interlayer is provided with an opening, and the upper cavity and the lower cavity are communicated through the opening; the circulating water outlet pipe and the heat supply water return port are arranged on the side wall of the lower cavity; the circulating water inlet pipe and the heat supply water outlet are arranged on the side wall of the upper cavity.

3. The cooperative electromagnetic heating system according to claim 2, wherein the inner chamber of the heat-insulating water tank is further provided with an interlayer bracket, one end of the interlayer bracket is connected with the inner wall of the heat-insulating water tank, and the other end of the interlayer bracket is connected with the interlayer.

4. The cooperative electromagnetic heating system according to claim 3, wherein the connecting end of the circulating water outlet pipe and the heating water inlet pipe and the connecting end of the circulating water inlet pipe and the heating water outlet pipe are provided with flange portions that are attached to each other.

5. The cooperative electromagnetic heating system according to any one of claims 1 to 4, wherein the hot water tank is further provided with an overflow port, the overflow port is provided with a convection prevention mechanism, and the convection prevention mechanism has a first state in which the overflow port is closed and a second state in which the overflow port is opened.

6. An electromagnetic heating and heating apparatus according to claim 5, wherein the anti-convection mechanism includes a liquid level sensor and a control valve provided at the overflow port; the liquid level sensor is used for monitoring the liquid level height in the heat-preservation water tank and generating a generated liquid level signal to the control valve; the control valve is used for receiving the liquid level signal and controlling the opening and closing of the overflow port according to the liquid level signal.

7. The electromagnetic heating heat supply apparatus according to claim 6, wherein the heat-insulating water tank is provided with a liquid level sensor pressure pipe; the liquid level sensor pressure pipe extends along the vertical direction, the bottom end of the liquid level sensor pressure pipe is located in the inner cavity, the top end of the liquid level sensor pressure pipe is located outside the heat preservation water tank, and the liquid level sensor is arranged in the liquid level sensor pressure pipe.

8. The electromagnetic heating apparatus according to claim 5, wherein the convection prevention mechanism is a float switch; the float switch comprises a float, a transmission connecting piece and a float valve, and the float valve is arranged at the overflow port and is connected with the float through the transmission connecting piece; the float valve controls the opening and closing of the overflow port according to the floating of the float ball.

9. The cooperative electromagnetic heating system according to any one of claims 1 to 4, wherein the electrothermal water heating device includes a heating water inlet pipe, a heating water outlet pipe, and a plurality of electromagnetic heaters connected in parallel between the heating water inlet pipe and the heating water outlet pipe; the circulation outlet pipe with heating inlet tube connected, the circulation inlet tube with heating outlet pipe connected.

10. The cooperative electromagnetic heating system according to claim 9, wherein the electromagnetic heater comprises a cylinder body with a cavity inside and an electromagnetic coil, the electromagnetic coil is wound on the outer side wall of the cylinder body, and the cylinder body is provided with a water inlet and a water outlet which are respectively communicated with the cavity; the water inlet of each electromagnetic heater is respectively connected with the heating water inlet pipe, and the water outlet of each electromagnetic heater is respectively connected with the heating water outlet pipe.

Technical Field

The invention relates to the technical field of tobacco leaf baking, in particular to a cooperative electromagnetic heating system.

Background

The baking of the tobacco leaves plays a decisive role in the quality of the finished tobacco leaves; in the tobacco leaf baking process, the current baking mode mainly comprises the steps of respectively conveying high-temperature gas generated by boiler combustion to each baking room heat exchanger of a bulk baking room area, and baking tobacco leaves in the baking room through heat exchange of the baking room heat exchangers; however, not only is resources such as coal wasted in the combustion process of the boiler, but also harmful gases are generated to cause environmental pollution.

For the problems of the coal-fired boiler, the electromagnetic boiler is adopted to replace the traditional coal-fired boiler as a heat source to heat circulating hot water and other media in the prior art; however, the existing electromagnetic boiler still has many defects in the actual use process, for example, during tobacco leaf baking, there are working conditions that each drying room of the bulk drying room area needs to be heated or only part of the drying rooms need to be heated, and the existing electromagnetic boiler is not well suitable for adjusting the heating efficiency of various working conditions of the bulk drying room area, so that the baking quality of tobacco leaves is affected and energy waste is caused.

Disclosure of Invention

The invention discloses a cooperative electromagnetic heating system, which aims to solve the problems that the baking quality of tobacco leaves is influenced and energy is wasted because an existing electromagnetic boiler cannot be well suitable for heating efficiency adjustment of various working conditions in a dense drying room area.

In order to solve the problems, the invention adopts the following technical scheme:

a cooperative electromagnetic heating heat supply system comprises two groups of electromagnetic heating water supply equipment, a heat supply water outlet pipe and a heat supply water return pipe, wherein the heat supply water outlet pipe and the heat supply water return pipe are used for connecting each heat exchange equipment; the electromagnetic heating water supply equipment comprises an electromagnetic hot water device and a heat preservation water tank, wherein a circulating water outlet pipe of the heat preservation water tank is connected with a heating water inlet pipe of the electromagnetic hot water device, a circulating water inlet pipe of the heat preservation water tank is connected with a heating water outlet pipe of the electromagnetic hot water device, and the heat preservation water tank is provided with a heat supply water outlet and a heat supply water return port; the heat supply outlet pipe the end of intaking respectively with in the two sets of electromagnetic heating water supply equipment the heat supply delivery port is connected, the play water end of heat supply wet return respectively with in the two sets of electromagnetic heating water supply equipment the heat supply return water mouth is connected, just at least one in the two sets of electromagnetic heating water supply equipment holding water box the heat supply delivery port with the heat supply return water mouth is provided with the control valve.

Optionally, the inner cavity of the heat-preservation water tank is provided with a transversely extending interlayer, and the inner cavity of the heat-preservation water tank is divided by the interlayer to form an upper cavity and a lower cavity; the interlayer is provided with an opening, and the upper cavity and the lower cavity are communicated through the opening; the circulating water outlet pipe and the heat supply water return port are arranged on the side wall of the lower cavity; the circulating water inlet pipe and the heat supply water outlet are arranged on the side wall of the upper cavity.

Optionally, an interlayer support is further arranged in the inner cavity of the heat preservation water tank, one end of the interlayer support is connected with the inner wall of the heat preservation water tank, and the other end of the interlayer support is connected with the interlayer.

Optionally, the connecting end of the circulating water outlet pipe and the heating water inlet pipe and the connecting end of the circulating water inlet pipe and the heating water outlet pipe are provided with flange parts which are mutually attached.

Optionally, the heat preservation water tank is further provided with an overflow port, the overflow port is provided with an anti-convection mechanism, and the anti-convection mechanism has a first state that the overflow port is closed and a second state that the overflow port is opened.

Optionally, the anti-convection mechanism comprises a liquid level sensor and a control valve arranged at the overflow port; the liquid level sensor is used for monitoring the liquid level height in the heat-preservation water tank and generating a generated liquid level signal to the control valve; the control valve is used for receiving the liquid level signal and controlling the opening and closing of the overflow port according to the liquid level signal.

Optionally, the heat preservation water tank is provided with a liquid level sensor pressure pipe; the liquid level sensor pressure pipe extends along the vertical direction, the bottom end of the liquid level sensor pressure pipe is located in the inner cavity, the top end of the liquid level sensor pressure pipe is located outside the heat preservation water tank, and the liquid level sensor is arranged in the liquid level sensor pressure pipe.

Optionally, the anti-convection mechanism is a float switch; the float switch comprises a float, a transmission connecting piece and a float valve, and the float valve is arranged at the overflow port and is connected with the float through the transmission connecting piece; the float valve controls the opening and closing of the overflow port according to the floating of the float ball.

Optionally, the electric hot water device comprises a heating water inlet pipe, a heating water outlet pipe and a plurality of electromagnetic heaters connected in parallel between the heating water inlet pipe and the heating water outlet pipe; the circulation outlet pipe with heating inlet tube connected, the circulation inlet tube with heating outlet pipe connected.

Optionally, the electromagnetic heater comprises a cylinder body and an electromagnetic coil, the cylinder body is internally provided with a cavity, the electromagnetic coil is wound on the outer side wall of the cylinder body, and the cylinder body is provided with a water inlet and a water outlet which are respectively communicated with the cavity; the water inlet of each electromagnetic heater is respectively connected with the heating water inlet pipe, and the water outlet of each electromagnetic heater is respectively connected with the heating water outlet pipe.

The technical scheme adopted by the invention can achieve the following beneficial effects:

the invention discloses a cooperative electromagnetic heating heat supply system, which is characterized in that two groups of electromagnetic heating water supply equipment are adopted, a heat supply water outlet of a heat insulation water tank in the two groups of electromagnetic heating water supply equipment is respectively connected with a water inlet end of a heat supply water outlet pipe, a heat supply water return port is respectively connected with a water outlet end of a heat supply water return pipe, and a heat supply water outlet and a heat supply water return port of at least one heat insulation water tank are provided with control valves, so that the two groups of electromagnetic heating water supply equipment can flexibly regulate and control heat supply adaptively according to the working condition of a drying room in a dense drying room area; if the heat exchange equipment of each drying room or most drying rooms needs to supply heat when the tobacco leaf is baked in the intensive drying room area, the control valve can be opened to enable media such as hot water and the like heated by the electromagnetic hot water device in each heat preservation water tank to be simultaneously conveyed to the heat exchange equipment of each drying room through the heat supply water outlet pipe, so that the heat supply requirement of simultaneous operation of the heat exchange equipment in each drying room is met, and the system is well suitable for the heat supply heating working condition with high load; if only a small part of heat exchange equipment of the drying room needs to supply heat, the control valves of the electromagnetic hot water device and the heat preservation water tank of one group of electromagnetic heating water supply equipment can be closed, and the normal work of the other group of electromagnetic heating water supply equipment is only reserved, so that the heat supply requirement of the simultaneous operation of the small part of heat exchange equipment in the drying room can be met, the drying room is well suitable for the heat supply heating working condition with low load, and the energy consumption is further reduced; therefore, compared with the existing electromagnetic boiler system, the cooperative electromagnetic heating heat supply system disclosed by the invention realizes the cooperative work of two groups of electromagnetic heating water supply equipment, can adaptively and flexibly adjust the operation state according to the heat supply heating load condition of the drying room in the intensive drying room area, not only can well meet the requirement of the tobacco leaf baking temperature and ensure the baking quality and quality of the tobacco leaf, but also can avoid the energy waste caused by the simultaneous operation of the two groups of electromagnetic heating water supply equipment under the low-load heat supply heating working condition and achieve the purpose of energy saving.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a cooperative electromagnetic heating system disclosed in embodiment 1 of the present invention;

FIG. 2 is a schematic sectional view of the heat-insulating water tank disclosed in embodiment 2 of the present invention;

FIG. 3 is a side view of the insulated water tank disclosed in embodiment 2 of the present invention;

fig. 4 is a schematic top view of the electromagnetic water heating apparatus disclosed in embodiment 3 of the present invention;

fig. 5 is a schematic side view of an electromagnetic water heating apparatus disclosed in embodiment 3 of the present invention;

fig. 6 is a schematic structural view of an electromagnetic heater disclosed in embodiment 3 of the present invention;

description of reference numerals:

10-electromagnetic water heating device, 100-electromagnetic heater, 110-cylinder, 111-water inlet, 112-water outlet, 113-flange part, 120-electromagnetic coil, 130-magnetic strip, 140-outer brim part, 150-controller, 160-cabinet body,

20-water injection pipe, 200-heat preservation water tank, 2001-sewage discharge pipe, 2002-ladder stand, 2003-connecting pipe, 2004-connecting pipe control valve, 2005-control valve, 201-circulating water outlet pipe, 202-circulating water inlet pipe, 203-heat supply water outlet, 204-heat supply water return port, 205-interlayer, 2051-interlayer bracket, 206-manhole, 207-cover body, 208-liquid level sensor pressure guide pipe, 209-overflow port, 210-heat water inlet pipe, 220-heat water outlet pipe, 221-water flow switch, 230-heat supply water outlet pipe and 240-heat supply water return pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Example 1

Referring to fig. 1, an embodiment of the present invention discloses a cooperative electromagnetic heating system, which includes two sets of electromagnetic heating water supply devices, and a heat supply water outlet pipe 230 and a heat supply water return pipe 240 for connecting each heat exchange device.

The electromagnetic heating water supply equipment comprises an electromagnetic hot water device 10 and a heat preservation water tank 200, wherein a circulating water outlet pipe 201 of the heat preservation water tank 200 is connected with a heating water inlet pipe 210 of the electromagnetic hot water device 10, a circulating water inlet pipe 202 of the heat preservation water tank 200 is connected with a heating water outlet pipe 220 of the electromagnetic hot water device 10, and the heat preservation water tank 200 is provided with a heat supply water outlet 203 and a heat supply water return port 204.

The water inlet end of the heat supply water outlet pipe 230 is respectively connected with the heat supply water outlet 203 of the two groups of electromagnetic heating water supply equipment, the water outlet end of the heat supply water return pipe 240 is respectively connected with the heat supply water return port 204 of the two groups of electromagnetic heating water supply equipment, and the heat supply water outlet 203 and the heat supply water return port 204 of at least one heat preservation water tank 200 of the two groups of electromagnetic heating water supply equipment are provided with control valves.

The two sets of electromagnetic heating water supply equipment are used, the heat supply water outlet 203 of the heat preservation water tank 200 in the two sets of electromagnetic heating water supply equipment is connected with the water inlet end of the heat supply water outlet pipe 230, the heat supply water return port 204 is connected with the water outlet end of the heat supply water return pipe 240, and the heat supply water outlet 203 and the heat supply water return port 204 of at least one heat preservation water tank 200 are provided with the control valves 2005, so that the two sets of electromagnetic heating water supply equipment can flexibly regulate and control heat supply adaptively according to the working condition of the drying room in the intensive drying room area.

If tobacco leaf baking is carried out in the intensive drying room area, if the heat exchange equipment of each drying room or most drying rooms needs to supply heat, the control valve 2005 can be opened, so that media such as hot water and the like heated by the electromagnetic hot water device 10 in each heat preservation water tank 200 can be simultaneously conveyed to the heat exchange equipment of each drying room through the heat supply water outlet pipe 230, the heat supply requirement of simultaneous operation of the heat exchange equipment in each drying room is met, and the system is well suitable for the heat supply heating working condition with high load; if only a small part of the heat exchange equipment in the drying room needs to supply heat, the electromagnetic water heating device 10 of one group of electromagnetic heating water supply equipment and the control valve 2005 of the heat preservation water tank 200 can be closed, and the normal work of the other group of electromagnetic heating water supply equipment is only reserved, so that the heat supply requirement of the simultaneous operation of the small part of the heat exchange equipment in the drying room can be met, the heat supply heating working condition with low load is well applicable, and the energy consumption is further reduced.

Therefore, compared with the existing electromagnetic boiler system, the cooperative electromagnetic heating heat supply system disclosed by the invention realizes the cooperative work of two groups of electromagnetic heating water supply equipment, can adaptively and flexibly adjust the operation state according to the heat supply heating load condition of the drying room in the intensive drying room area, not only can well meet the requirement of the tobacco leaf baking temperature and ensure the baking quality and quality of the tobacco leaf, but also can avoid the energy waste caused by the simultaneous operation of the two groups of electromagnetic heating water supply equipment under the low-load heat supply heating working condition and achieve the purpose of energy saving.

Specifically, as shown in fig. 1, the heat supply water outlet 203 and the heat supply water return port 204 of the two heat preservation water tanks 200 in the two sets of electromagnetic heating water supply devices are both provided with a control valve 2005, so that the two sets of electromagnetic heating water supply devices can simultaneously operate as heat sources for heat supply, and any one set of the two sets of electromagnetic heating water supply devices can also operate as a heat source for heat supply, so that the other set of electromagnetic heating water supply devices can operate at intervals or for maintenance, and the like, and thus the regulation and control selection of the cooperative electromagnetic heating system is more flexible.

Of course, a control valve 2005 may also be provided on the heat supply water outlet 203 and the heat supply water return port 204 of one heat-insulating water tank 200 in the two sets of electromagnetic heating water supply equipment; when two groups of electromagnetic heating water supply equipment are required to be used as heat sources to operate for heat supply, the group of electromagnetic heating water supply equipment provided with the control valve 2005 is started, and the control valve 2005 is in an open state, so that the two groups of electromagnetic heating water supply equipment can operate cooperatively; when a group of electromagnetic heating water supply equipment is required to be used as a heat source to operate for heat supply, the group of electromagnetic heating water supply equipment provided with the control valve 2005 is closed, and the control valve 2005 is in a closed state, so that the group of electromagnetic heating water supply equipment not provided with the control valve 2005 is in an operating state to be used as the heat source for heat supply; compared with the mode structure of fig. 1, the number of control valves 2005 can be reduced, which is beneficial to reducing the construction cost of the cooperative electromagnetic heating system.

In the cooperative electromagnetic heating heat supply system disclosed by the embodiment of the invention, the connecting pipe 2003 is also arranged between the heat preservation water tanks 2005 of the two groups of electromagnetic heating water supply equipment, and the connecting pipe 2003 is provided with the connecting pipe control valve 2004 for controlling the opening and closing of the connecting pipe 2003, so that the internal chambers of the two heat preservation water tanks 200 can be connected or disconnected through the connecting pipe 2003, the liquid levels in the two heat preservation water tanks 200 can be balanced through the connecting pipe 2003, and the phenomenon that the liquid level of the heat preservation water tank 200 in one group of electromagnetic heating water supply equipment is excessively increased and exceeds the limited liquid level due to the cooperative operation and independent operation of the two groups of electromagnetic heating water supply equipment.

Based on the above structure arrangement of the connecting pipe 2003 and the connecting pipe control valve 2004, the normal working liquid level of the heat preservation water tank 200 in the cooperative electromagnetic heating system can be ensured, the waste of water resources caused by the discharge from the overflow port 209 due to the collection of water circulation in one of the heat preservation water tanks 200 can be avoided, the problem that frequent water supplement is needed due to the too low liquid level of the other heat preservation water tank 200 can be avoided, and the stable operation of the system can be ensured.

Meanwhile, the circulating water inlet pipe 202 can be provided with a conveying pump, so that the circulating water flowing between the heat preservation water tank 200 and the electromagnetic hot water device 10 can be promoted by the conveying power provided by the conveying pump, so that the water in the heat preservation water tank 200 can flow into the electromagnetic hot water device 10 to be heated, and can return to the heat preservation water tank 200 after being heated, and can be conveyed to heat exchange equipment in the drying room through the heat supply water outlet pipe 230 through the heat supply water outlet 203 to carry out heat exchange heating so as to improve the required heating temperature for baking the tobacco leaves; the cold water after heat exchange in the heat exchange device can return to the heat-preservation water tank 200 through the heat supply return pipe 240 via the heat supply return port 204 to complete the circulation heat supply.

Moreover, under the water storage effect of the heat preservation water tank 200, when the electromagnetic hot water device 10 stops working due to power failure or fault, the hot water stored in the heat preservation water tank 200 can still meet the heat supply requirement of the heat exchange equipment in the drying room for a period of time; generally, the volume of the insulated water tank 200 can be set to about 15 tons.

In order to avoid the backflow of the circulation water inlet pipe 202, a check valve (i.e., a check valve) may be disposed on the circulation water inlet pipe 202 to ensure that the cold water to be heated in the holding water tank 200 can smoothly flow into the electromagnetic hot water apparatus 10 for heating; the circulation water inlet pipe 202 may be provided with a pressure gauge so as to detect the pressure in the pipeline.

It is easy to understand that the circulating water inlet pipe 202 and the circulating water outlet pipe 201 can also be provided with control valves, so that the opening and closing of the circulating water inlet pipe 202 and the circulating water outlet pipe 201 can be controlled through the control valves, and the operations such as the overhaul, the maintenance and the like of the electromagnetic water heating device 10 and the heat preservation water tank 200 are facilitated; the hot water tank 200 may be connected to a water source through a water injection pipe 20 for a water injection operation of the hot water tank 200.

Example 2

Referring to fig. 2 and 3, an embodiment of the present invention provides a thermal insulation water tank 200, which is suitable for a cooperative electromagnetic heating system in embodiment 1; the inner chamber of the disclosed heat-preservation water tank 200 is provided with a transversely extending interlayer 205, and the inner chamber of the heat-preservation water tank 200 is divided by the interlayer 205 to form an upper chamber and a lower chamber; the interlayer 205 is provided with an opening, and the upper chamber and the lower chamber are communicated through the opening; the side wall of the lower cavity is provided with a circulating water outlet pipe 201 and a heat supply water return port 204; the side wall of the upper chamber is provided with a circulating water inlet pipe 202 and a heating water outlet 203; the electric hot water apparatus includes a heating water inlet pipe 210, a heating water outlet pipe 220, and a plurality of electromagnetic heaters 100 connected in parallel between the heating water inlet pipe 210 and the heating water outlet pipe 220; the circulating water outlet pipe 201 is connected with the heating water inlet pipe 210, and the circulating water inlet pipe 202 is connected with the heating water outlet pipe 220.

The water in the heat preservation water tank 200 can be simultaneously conveyed to each electromagnetic heater 100 of the external electromagnetic hot water device 10 for heating through the circulating water outlet pipe 201, and the heated water can return to the heat preservation water tank for storage through the circulating water inlet pipe 202, so that the arrangement mode that the electromagnetic coil is directly wound on the heat preservation water tank 200 is avoided, the water in the heat preservation water tank 200 can be dispersedly heated in the externally arranged electromagnetic hot water device 10, the arrangement area of the electromagnetic coil can be reduced, the construction cost of the tobacco leaf baking system can be reduced, the limitation of the heating area of the furnace body can be broken through, the heating time is shortened, the heating efficiency of the heat preservation water tank 200 is improved, and the electromagnetic heating equipment is convenient to overhaul and maintain; the heated water in the heat preservation water tank 200 can form an external circulation with the heat exchange equipment in each drying room through the heat supply water outlet 203 and the heat supply water return port 204, so as to provide a heat source for the heat exchange equipment in the drying room.

Meanwhile, the communication area of the upper chamber and the lower chamber can be effectively reduced by the interlayer 205 arranged in the inner chamber of the heat-preservation water tank 200, thereby both can reduce the heat exchange between the hot water layer of upper chamber and the cold water layer of lower chamber, guarantee to follow the required temperature of tobacco flue-curing to the hot water of heat transfer equipment of heat supply delivery port 203, can play certain hindrance effect to the rivers flow direction between heat supply return water mouth 204 and heat supply delivery port 203, circulation outlet pipe 201 and the circulation inlet tube 202 again through interlayer 205, prevent that the cold water that flows back to in holding water box 200 through heat supply return water mouth 204 directly flows to heat transfer equipment again through heat supply delivery port 203, the hot water that flows back to in holding water box 200 through circulation inlet tube 202 directly flows to the electromagnetism hot water system again through circulation outlet pipe 201, and then be favorable to guaranteeing electromagnetism hot water supply system's normal operating and heating effect.

Moreover, the communication between the upper chamber and the lower chamber can be maintained through the opening formed in the interlayer 205; compared with a structure that the upper chamber and the lower chamber are completely separated by the interlayer 205, the original water storage volume of the heat preservation water tank 200 is kept, the water injection operation of the heat preservation water tank 200 is facilitated, the heat supply water outlet 203 and the heat supply water return port 204 can be closed to carry out internal circulation heating on water in the heat preservation water tank 200, and heat is supplied by heat exchange equipment for external circulation after water in the heat preservation water tank 200 is heated, so that the energy consumption can be effectively reduced, the instant temperature of the heat exchange equipment can reach the temperature required by tobacco leaf baking, and the tobacco leaf baking efficiency is improved; when the external electromagnetic water heating device stops working due to power failure or other reasons, the hot water in the heat-preservation water tank 200 can still meet the heat supply requirement of the heat exchange equipment in the drying room for a period of time.

Specifically, as shown in fig. 2, the circulation water inlet pipe 202 and the heating water outlet 203 may be respectively disposed at opposite sides of the upper chamber, and the circulation water outlet pipe 201 and the heating water return port 204 may be respectively disposed at opposite sides of the lower chamber; furthermore, as shown in fig. 3, the circulation outlet pipe 201 and the circulation inlet pipe 202 are located on the same side of the thermal insulation water tank 200, and the heat supply outlet port 203 and the heat supply return port 204 are located on the same side of the thermal insulation water tank 200, so that the circulation outlet pipe 201 and the circulation inlet pipe 202 are located on the back side of the thermal insulation water tank 200, which facilitates connection and pipeline routing with electromagnetic hot water devices on the back side, and the heat supply outlet port 203 and the heat supply return port 204 are located on the front side of the thermal insulation water tank 200, which facilitates connection and pipeline routing with heat exchange devices in each drying room of the external circulation through the heat supply outlet pipe 230 and the heat supply.

In order to facilitate the connection between the heat-insulating water tank 200 and each pipeline of the electromagnetic water heating device, flange parts which are mutually attached can be arranged at the connecting ends of the circulating water outlet pipe 201 and the heating water inlet pipe 210 and the connecting ends of the circulating water inlet pipe 202 and the heating water outlet pipe 220, so that the connecting ends of the circulating water outlet pipe 201 and the heating water inlet pipe 210 and the connecting ends of the circulating water inlet pipe 202 and the heating water outlet pipe 220 have larger attaching contact areas through the corresponding flange parts, thereby not only being beneficial to the stable attaching fixation of the connecting ends, but also ensuring the sealing property of the connecting ends; usually, a sealing element such as a sealing gasket may be disposed between two flange portions attached to each other to ensure the sealing performance of the connection.

Meanwhile, as the hot water layer is arranged below the upper and lower cold water layers, the connecting end of the heat supply water outlet 203 and the upper cavity can be arranged above the connecting end of the circulating water inlet pipe 202 and the upper cavity, thereby being beneficial to effectively conveying the upper layer hot water in the upper cavity to the heat exchange equipment from the heat supply water outlet 203 and better keeping the water conveying temperature of the heat preservation water tank 200 through the heat supply water outlet 203.

In order to improve the structural strength of the interlayer 205, the inner chamber is also provided with an interlayer support 2051, one end of the interlayer support 2051 is connected with the inner wall of the heat-preservation water tank 200, and the other end of the interlayer support 2051 is connected with the interlayer 205, so that the interlayer support 2051 can provide a supporting effect for the interlayer 205, the interlayer 205 is conveniently fixed, and the structural strength of the interlayer 205 can be improved; the barrier 205 may be a plate-like structure.

As an arrangement structure of the interlayer support 2051, the interlayer support 2051 may be a vertically arranged cylindrical structural member, the bottom end of the interlayer support 2051 is fixedly arranged on the bottom surface of the lower chamber, and the top end of the interlayer support 2051 abuts against the interlayer 205, so as to provide a vertically downward supporting force for the interlayer 205, which not only enables the supporting force of the interlayer support 2051 to more effectively act on the interlayer 205, but also enables the interlayer support 2051 to have the advantages of simple structure and convenience in arrangement and fixation; of course, the partition support 2051 may also be a diagonal draw plate or a diagonal support structure connected to the partition 205, and the arrangement of the partition support 2051 is not limited in the embodiment of the present invention.

As shown in fig. 2, the opening may be located at an edge of the partition 205, that is, one end of the partition 205 is fixedly connected to an inner wall of one side of the insulated water tank 200, the other end of the partition 205 extends to form a free end, and an opening is formed between the free end and the inner wall of the other side of the insulated water tank 200; therefore, compared with the arrangement mode that the inner walls of two opposite sides of the heat preservation water tank 200 are respectively provided with the interlayer 205 and the opening is reserved between the two interlayers 205, the heat preservation water tank has the advantages of simple structure and convenience in arrangement and fixation.

Of course, the opening may also be disposed at the middle position of the partition 205, for example, the peripheral edge of one partition 205 is fixedly connected to the inner side wall of the thermal insulation water tank, and the opening is disposed at the middle position, or the position adjacent to the middle, or the position adjacent to the edge of the partition 205; the embodiment of the invention does not limit the arrangement mode and structure of the interlayer 205 and the opening position of the opening.

In the heat-preservation water tank 200 disclosed in the embodiment of the present invention, as shown in fig. 3, the heat-preservation water tank 200 may further be provided with an overflow port 209; the overflow port 209 is provided with an anti-convection mechanism having a first state in which the overflow port 209 is closed and a second state in which the overflow port 209 is opened.

When the liquid level in the heat-preservation water tank 200 is lower than the limited liquid level, the overflow port 209 can be closed through the convection prevention mechanism, so that the interior of the heat-preservation water tank 200 is isolated from the outside, the heat loss caused by convection heat exchange between hot water in the heat-preservation water tank 200 and outside air is avoided, and the heat supply effect of the heat-preservation water tank 200 is further improved; when the liquid level in holding water tank 200 reaches the limited liquid level, prevent that the convection current mechanism can open overflow mouth 209 for unnecessary water flows out through overflow mouth 209, and then can avoid the liquid level in holding water tank 200 to surpass the limited liquid level effectively.

As an arrangement structure of the convection prevention mechanism, the convection prevention mechanism may include a liquid level sensor and a control valve disposed at the overflow port 209; the liquid level sensor is used for monitoring the liquid level height in the heat preservation water tank 200 and generating a generated liquid level signal to the control valve; the control valve is used for receiving the liquid level signal and controlling the opening and closing of the overflow port 209 according to the liquid level signal, thereby realizing the automatic electric control of the opening and closing of the overflow port 209; compared with a mechanical control mode structure, the method has the advantages of rapid response and high control precision.

In order to facilitate the arrangement of the liquid level sensor, as shown in fig. 2 and 3, the heat preservation water tank 200 is provided with a liquid level sensor pressure guiding pipe 208; the liquid level sensor pressure pipe 208 extends in the vertical direction, the bottom end of the liquid level sensor pressure pipe 208 is positioned in the inner cavity, the top end of the liquid level sensor pressure pipe 208 is positioned outside the heat preservation water tank 200, and the liquid level sensor is arranged in the liquid level sensor pressure pipe 208; therefore, the pressure guide pipe 208 of the liquid level sensor is convenient for the liquid level sensor to monitor the liquid level in the heat preservation water tank 200, is convenient for the installation and fixation of the liquid level sensor, and plays a role in protecting the liquid level sensor.

Preferably, the top end of the pressure pipe 208 of the liquid level sensor is provided with a flange portion, so that a sufficient installation bearing area can be provided for the installation and fixation of the liquid level sensor through the end surface of the flange portion, and the installation and fixation of the liquid level sensor are more stable and reliable.

As other arrangement structures of the anti-convection mechanism, the anti-convection mechanism can also be a float switch; the float switch can comprise a float, a transmission connecting piece and a float valve, and the float valve is arranged at the overflow port 209 and is connected with the float through the transmission connecting piece; the float valve controls the opening and closing of the overflow port 209 according to the floating of the float.

When the liquid level in the heat preservation water tank 200 rises, the floating ball floats upwards along with the rise of the liquid level, and when the liquid level in the heat preservation water tank 200 reaches the limited liquid level, the floating ball drives the ball float valve to open the overflow through the transmission connecting piece, so that the redundant water flows out through the overflow port 209, and the water level in the heat preservation water tank 200 can be effectively prevented from exceeding the limited liquid level; when the liquid level in the thermal insulation water tank 200 is lower than the limited liquid level, the floating ball drives the floating ball valve to keep the overflow open in a closed state through the transmission connecting piece, so that the inside of the thermal insulation water tank 200 is isolated from the outside.

Thereby realizing the mechanical control of the opening and closing of the overflow port 209 through a floating ball mechanism; compared with an electric control mode, the mechanical control mode not only has the advantage of long service life, but also can ensure the control action on the overflow port 209 under the condition of power failure, and is particularly suitable for the working condition that power failure or unstable voltage easily occurs.

It is easy to understand that the top surface of the insulated water tank 200 disclosed in the embodiment of the present invention may further be provided with a manhole 206 communicated with the internal cavity of the insulated water tank 200, so that the maintenance personnel can conveniently perform maintenance work on the insulated water tank 200 through the manhole 206, and the manhole 206 is provided with a cover body 207 for opening and closing the manhole 206; meanwhile, a crawling ladder 2002 is arranged on the side face of the heat preservation water tank 200, and the crawling ladder 2002 extends from the top to the bottom of the heat preservation water tank 200, so that maintenance personnel can climb conveniently.

Meanwhile, the side wall of the heat-preservation water tank 200 can be further provided with a connecting pipe 2003, so that the heat-preservation water tank 200 can be communicated with the adjacent heat-preservation water tank 200 through the connecting pipe 2003, the intercommunication of the two adjacent heat-preservation water tanks 200 is realized, and further, the water level balance in the two heat-preservation water tanks 200 is ensured, and the heat-preservation water tank is particularly suitable for the combination of the heat-preservation water tanks 200 between two or more groups of electromagnetic heating equipment in a collaborative electromagnetic heating system, and the problems that the normal work of the heat-preservation water tank 200 is influenced and the water resource is wasted due to the fact that the water level of the heat-preservation; the connection pipe 2003 may be provided with a connection pipe control valve 2004 for controlling opening and closing of the connection pipe 2003.

Preferably, the connection end of the connection pipe 2003 and the thermal insulation water tank 200 is located below the interlayer 205, so that cold water with relatively low temperature in the lower chamber of the thermal insulation water tank 200 with higher liquid level can flow into another thermal insulation water tank 200 through the connection pipe 2003, which not only realizes automatic balance of liquid levels in the two thermal insulation water tanks 200, but also avoids the problem that the heat loss of the thermal insulation water tank 200 affects the heat supply effect because the upper layer hot water of the thermal insulation water tank 200 flows into another thermal insulation water tank 200

The bottom of the heat preservation water tank 200 can also be provided with a drain pipe 2001, and the drain pipe 2001 is provided with a control valve for controlling the opening and closing of the drain pipe 2001, so that the drain pipe 2001 can be used for cleaning and draining of the heat preservation water tank 200, and water can be drained to control the liquid level in the heat preservation water tank 200.

Example 3

Referring to fig. 4 to 6, an embodiment of the invention discloses an electromagnetic water heating apparatus 10, which is suitable for a cooperative electromagnetic heating system in embodiment 1; the disclosed electromagnetic water heating apparatus 10 includes a heating water inlet pipe 210, a heating water outlet pipe 220, and at least two electromagnetic heaters 100; the electromagnetic heater 100 comprises a cylinder 110 and an electromagnetic coil 120, wherein the cylinder 110 is internally provided with a cavity, the electromagnetic coil 120 is wound on the outer side wall of the cylinder 110, and the cylinder 110 is provided with a water inlet 111 and a water outlet 112 which are respectively communicated with the cavity; the water inlet 111 of each electromagnetic heater 100 is connected with the heating water inlet pipe 210, and the water outlet 112 of each electromagnetic heater 100 is connected with the heating water outlet pipe 220.

Wherein, through heating inlet tube 210 and the barrel 110 that sets up in parallel for the water in holding water box 200 can circulate respectively and shunt to the barrel 110 of each electromagnetic heater 100, and utilize and wind the magnetic field that sets up the solenoid 120 production of the lateral wall of barrel 110 and heat, and the rethread heating outlet pipe 220 converges to holding water box 200 after the water in each barrel 110 heats, and then makes the temperature rise in the holding water box 200 can be used for the heat exchanger heat supply in each baking house.

Therefore, compared with the structure that the electromagnetic coil 120 is directly wound on the furnace body of the heating boiler in the prior art, the electromagnetic water heating device 10 enables water in the heat-insulating water tank 200 to be dispersedly heated in each electromagnetic heater 100, so that the arrangement area of the electromagnetic coil 120 can be reduced, the construction cost of a tobacco leaf baking system can be reduced, the limitation of the heating area of the furnace body can be broken through, the heating time can be shortened, the heating efficiency of the heat-insulating water tank 200 can be improved, the arrangement number of the electromagnetic heaters 100 can be adjusted according to the volume adaptability of the heat-insulating water tank 200, and the control, the overhaul and the maintenance of each electromagnetic heater 100 are facilitated.

In order to facilitate the assembly and connection of each electromagnetic heater 100 with the heating water inlet pipe 210 and the heating water outlet pipe 220, as shown in fig. 2, the connection end of the water inlet 111 and the heating water inlet pipe 210, and the connection end of the water outlet 112 and the heating water outlet pipe 220 are detachably connected through two flange parts 113 which are hermetically attached, respectively, so that the end surfaces of the water inlet 111 and the water outlet 112 of the cylinder 110 and the corresponding connection port end surfaces of the heating water inlet pipe 210 and the heating water outlet pipe 220 have a larger attachment contact area through the flange parts 113, thereby not only facilitating the stable attachment and fixation of the connection ends, but also ensuring the sealing performance of the connection; a sealing gasket may be disposed between the two flange portions 113 attached to each other.

Meanwhile, the outer side wall of the cylinder 110 may be provided with a demagnetizing part, and the demagnetizing part is located on the side of the electromagnetic coil 120 away from the cylinder 110, so that the demagnetizing part may shield the outer magnetic field of the electromagnetic coil 120, thereby reducing or eliminating the magnetic radiation caused by the outer electromagnetism of the electromagnetic coil 120, and the magnetic field generated by the electromagnetic coil 120 is located on the side of the cylinder 110 to ensure that the cylinder 110 generates heat for heating the medium such as water therein.

Specifically, the degaussing member may include a plurality of degaussing strips 130, and the plurality of degaussing strips 130 are uniformly distributed along the circumferential direction of the cylinder 110, so as to achieve the purpose of shielding the magnetic field outside the electromagnetic coil 120, and facilitate the wiring connection between the electromagnetic coil 120 and components such as the controller 150 through the gap between the degaussing strips 130; the degaussing strip 130 extends along the axial direction of the cylinder body 110 and is detachably connected with the cylinder body 110, so that the degaussing strip 130 can be conveniently installed and detached, and the electromagnetic coil 120 and the degaussing strip 130 can be replaced, cleaned, maintained and the like.

Generally, as a detachable connection manner of the degaussing strip 130 and the cylinder 110, the degaussing strip 130 can be screwed and fixed on the cylinder 110 by fasteners such as screws; certainly, the degaussing strip 130 can also be directly adhered and fixed to the length of the cylinder 110 in an adhering manner, the fixing manner is simple and fast, and the arrangement of fasteners such as screws and the like and the arrangement of mounting holes can be avoided, so that the manufacturing cost of the electromagnetic heater 100 can be reduced, the structural strength of the cylinder 110 can be better ensured, or the degaussing strip 130 can be adhered to the outer surface of the electromagnetic coil 120.

In the electromagnetic water heating apparatus disclosed in the embodiment of the present invention, the electromagnetic heater 100 may further include a controller 150, and the controller 150 is connected to the electromagnetic coil 120, so that the controller 150 may control the current magnitude and the on/off of the electromagnetic coil 120 in the corresponding electromagnetic heater 100.

The controller 150 controls the on/off of the electromagnetic coil 120, so that the corresponding electromagnetic heater 100 can be started or stopped; the current of the electromagnetic coil 120 is controlled by the controller 150, so that the magnetic field intensity of the electromagnetic coil 120 can be adjusted, and the corresponding control and adjustment of the heating effect of the electromagnetic heater 100 can be realized.

Meanwhile, in order to realize the automatic control of the controller 150 on the electromagnetic heater 100, a temperature sensor and a flow sensor may be disposed on the heating water inlet pipe 210, and the temperature sensor and the flow sensor are respectively connected with the controller 150; the temperature sensor and the flow sensor are used to monitor the water temperature and the flow rate in the heating water inlet pipe 210, respectively, and the controller 150 controls the operation of the electromagnetic heater 100, that is, the operation state of the electromagnetic coil 120, according to the water temperature and the flow rate monitored by the temperature sensor and the flow sensor.

Such as: when the flow sensor does not detect water flow in the heating water inlet pipe 210, the controller 150 controls the electromagnetic heater 100 to stop working; when the flow sensor monitors that water flows in the heating water inlet pipe 210 and the temperature of the water flow monitored by the temperature sensor is lower than a preset temperature, the controller 150 controls the electromagnetic heater 100 to start working or increases the current of the electromagnetic coil 120 to increase the magnetic field intensity; when the flow sensor detects that there is water flow in the heating water inlet pipe 210 and the temperature of the water flow detected by the temperature sensor is higher than the preset temperature, the controller 150 controls the electromagnetic heater 100 to stop working or reduces the current of the electromagnetic coil 120 to reduce the magnetic field intensity.

It is easy to understand that the water flow switch 221 may be disposed on the heating water outlet pipe 220, so that the opening and closing of the heating water outlet pipe 220 may be controlled by the water flow switch 221; meanwhile, the heating water inlet pipe 210 is provided with a drain pipe, the drain pipe is located at a downstream position of one end of the electromagnetic heater 100 connected with the heating water inlet pipe 210, and the drain pipe is provided with a drain valve and can be opened and closed by the drain valve.

When the electromagnetic hot water device needs to be cleaned and maintained, the blow-off pipe can be opened through the blow-off valve, so that cleaning sewage is discharged out of the electromagnetic hot water device from the blow-off pipe, the electromagnetic hot water device is kept clean, and normal heating work of the electromagnetic hot water device is facilitated; and when the electromagnetic water heating device works normally, the blow-off pipe can be closed through the blow-off valve, so that the normal flow of water flow circulation heating in the electromagnetic water heating device is ensured.

For safe use of the electromagnetic water heating apparatus, each electromagnetic heater 100 and corresponding electrical components may be disposed in the cabinet 160, so that the electromagnetic water heating apparatus is isolated from the external environment by the cabinet 160, and each electromagnetic heater 100 and corresponding electrical components in the cabinet 160 are protected.

Meanwhile, the water inlet 111 is arranged on the end surface of the top end of the cylinder 110, and the water outlet 112 is arranged on the side wall of the cylinder 110 and is positioned at a position close to the bottom of the cylinder 110; compared with the structure that the water outlet 112 is arranged on the bottom end face of the cylinder body 110, the water outlet 112 is arranged on the position, close to the bottom, of the side wall of the cylinder body 110, so that water in the cylinder body 110 is enabled to have a long heating stroke and is heated more easily, the bottom end face of the cylinder body 110 is enabled to be flat and can be better attached to and fixed on the mounting seat on the bottom face of the cabinet body 160, stable fixation of the cylinder body 110 is facilitated, the arrangement height of the cylinder body 110 is reduced, occupied space is saved, and miniaturization of the cabinet body 160 is facilitated.

Preferably, the edge of the bottom end face of the cylinder 110 is provided with an outer brim 140 extending outwards, so that the fitting area between the bottom end face and the mounting seat can be increased through the outer brim 140, the mounting and fixing stability of the cylinder 110 can be better improved, the mounting hole can be provided with the outer brim 140, and the arrangement of fasteners such as screws and the like is convenient for mounting and fixing the cylinder 110 and the mounting seat; the number of the fasteners is at least three, and the fasteners are uniformly distributed along the circumferential direction of the cylinder body 110, so that the balance stress of the cylinder body 110 is facilitated, and the installation and fixation stability of the cylinder body 110 is ensured.

The outer eaves 140 can be annular plate-shaped structural members arranged along the circumferential direction of the cylinder 110, so that the processing and manufacturing of the cylinder 110 are facilitated, the outer eaves 140 is of an integral structure, and the structural strength of the whole outer eaves 140 is improved; of course, the outer brim 140 may also be a plurality of lugs distributed at intervals along the circumference of the cylinder 110; the embodiment of the present invention does not limit the shape structure of the outer eaves 140

In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.