阅读说明：本技术 一种气调空间升温系统 (Air-conditioned space heating system ) 是由 不公告发明人 于 2019-12-24 设计创作，主要内容包括：本发明涉及一种气调空间升温系统,包括：刚性气密围护结构；加热装置,其与所述刚性气密围护结构连接,经配置以向所述刚性气密围护结构提供升温气体；以及压力平衡装置,其设置于所述刚性气密围护结构上,经配置以维持温度变化过程中刚性气密围护结构的压力处于预设的范围。本申请气调空间升温系统可以使得刚性气密围护结构内升温均匀,防止出现局部过热现象,在热量流动过程中比较平稳,对刚性气密围护结构内的环境扰动较小,可以防止升温过快或不均对存储物品的损害。(The invention relates to a temperature rising system of a gas-conditioned space, which comprises: a rigid airtight enclosure; a heating device coupled to the rigid gas-tight enclosure and configured to provide an elevated temperature gas to the rigid gas-tight enclosure; and a pressure balancing device arranged on the rigid airtight enclosure and configured to maintain the pressure of the rigid airtight enclosure in a preset range during temperature change. The air-conditioned space heating system can ensure that the rigid airtight enclosure structure is uniformly heated, prevents the local overheating phenomenon, is more stable in the heat flow process, has less environmental disturbance in the rigid airtight enclosure structure, and can prevent the damage to stored articles caused by too fast or uneven heating.)

1. A modified atmosphere space warming system comprising:

a rigid airtight enclosure;

a heating device coupled to the rigid gas-tight enclosure and configured to provide an elevated temperature gas to the rigid gas-tight enclosure; and

a pressure balancing device disposed on the rigid airtight enclosure and configured to maintain a pressure of the rigid airtight enclosure within a predetermined range during a temperature change.

2. The modified atmosphere space warming system of claim 1, further comprising: a nitrogen gas source configured to provide nitrogen to the rigid gas tight enclosure.

3. The modified atmosphere space warming system of claim 2, wherein the heating device heats gas from the nitrogen gas source.

4. The modified atmosphere space warming system of claim 1, further comprising: a gas extraction device configured to extract gas in the rigid gas-tight enclosure.

5. The modified atmosphere space warming system of claim 4, wherein the heating device heats gas extracted from the gas extraction device.

6. The modified atmosphere space warming system of claim 5, wherein the gas extraction device comprises a plurality of air suction openings in the rigid air tight enclosure at different locations.

7. The modified atmosphere space warming system of claim 6, wherein the heating device comprises a plurality of air intakes and a plurality of baffles in different locations in the rigid air tight enclosure, the plurality of air intakes spaced apart from the plurality of air intakes.

8. The modified atmosphere space warming system of claim 1, wherein the heating device is configured such that a warming rate within the rigid airtight enclosure is no greater than 0.5 ℃/minute.

9. The modified atmosphere space warming system of claim 1, wherein the heating device is configured to provide a warming uniformity within the rigid airtight enclosure of no greater than 0.5 ℃/meter.

10. The modified atmosphere space warming system of claim 1, further comprising: a temperature sensor disposed at a gas outlet of the heating device.

11. The modified atmosphere space warming system of claim 1, wherein the pressure balancing device comprises a micro-differential pressure switch configured to detect a pressure in the rigid airtight enclosure, the micro-differential pressure switch having a differential pressure range of less than 50 Pa.

12. The modified atmosphere space warming system of claim 11, wherein the pressure equalization device further comprises: a safety valve, wherein the safety valve opens to equalize pressure inside and outside the rigid airtight enclosure in response to the pressure inside the rigid airtight enclosure monitored by the micro differential pressure switch exceeding a safe value.

13. The modified atmosphere space warming system of claim 11, wherein the safety valve closes with a delay of 1-5 seconds in response to the pressure within the rigid gas tight enclosure monitored by the micro differential pressure switch returning to a safe value.

14. The modified atmosphere space warming system of claim 4, further comprising a pressure sensor disposed between the heating device and the gas extraction device configured to detect a pressure of the gas extraction device gas outlet.

15. The modified atmosphere space warming system of claim 1, further comprising: a controller configured to monitor and adjust a temperature of the heating device and a gas flow rate.

16. The modified atmosphere space warming system of claim 15, wherein the controller is configured to monitor and adjust the opening and closing of an air inlet and/or an air outlet associated with the heating device.

17. The modified atmosphere space warming system of claim 15, wherein the controller is configured to monitor and adjust the pressure within the rigid airtight enclosure.

18. The modified atmosphere space warming system of claim 1, wherein the rigid air-tight enclosure comprises one or more layers of insulation panels disposed inside the rigid enclosure and/or outside the rigid enclosure.

Technical Field

The invention relates to the field of insect killing, in particular to a temperature rising system for an air-conditioned space.

Background

The problem of pest control has become a universal problem to be solved urgently in the field of storage of cultural relics, books, archives, traditional Chinese medicinal materials and the like in the collection of cultural relics. Chemical fumigation and physical radiation methods are rarely used because they tend to cause irreversible damage to the collection and may also be harmful to the health of workers. Although the freeze insecticidal method can avoid the above problems, it is difficult to achieve large-scale mass insecticidal treatment due to high cost.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a gas-conditioning space heating system, which comprises: the rigid airtight enclosure structure has better heat preservation performance, and prevents temperature fluctuation and heat loss in an enclosure space caused by external environment temperature interference; a heating device connected to the rigid gas-tight enclosure forming a closed-loop circulation system configured to provide an elevated temperature gas to the rigid gas-tight enclosure; and a pressure balancing device arranged on the rigid airtight enclosure and configured to maintain the pressure of the rigid airtight enclosure in a preset range during temperature change.

The air-conditioned space heating system further comprises: a nitrogen gas source configured to provide nitrogen to the rigid gas tight enclosure.

The modified atmosphere space warming system of above, wherein the heating device heats gas from the nitrogen gas source.

The air-conditioned space heating system further comprises: a gas extraction device configured to extract gas in the rigid gas-tight enclosure.

The modified atmosphere space warming system of above, wherein the heating means heats the gas extracted from the gas extraction means.

The modified atmosphere space heating system of the above, wherein the gas extraction device comprises a plurality of air suction openings in different positions in the rigid airtight enclosure.

The temperature raising system for the air-conditioned space, wherein the heating device comprises a plurality of air inlets and a plurality of flow deflectors which are arranged in different positions in the rigid airtight envelope, and the plurality of air inlets are spaced from each other.

The controlled atmosphere space warming system of the above, wherein the heating device is configured to increase the temperature inside the rigid airtight enclosure at a rate of not higher than 0.5 ℃/min.

The controlled atmosphere space heating system as described above, wherein the heating device is configured to provide a temperature uniformity within the rigid airtight enclosure of no more than 0.5 ℃/meter.

The air-conditioned space heating system further comprises: a temperature sensor disposed at a gas outlet of the heating device.

The modified atmosphere space warming system of above, wherein the pressure equalization device comprises a micro-differential pressure switch configured to detect a pressure in the rigid airtight enclosure, the micro-differential pressure switch having a differential pressure range of less than 50 Pa.

The modified atmosphere space warming system as described above, wherein the pressure equalizing device further comprises: a safety valve, wherein the safety valve opens to equalize pressure inside and outside the rigid airtight enclosure in response to the pressure inside the rigid airtight enclosure monitored by the micro differential pressure switch exceeding a safe value.

The modified atmosphere space warming system as described above, wherein the safety valve closes with a delay of 1-5 seconds in response to the pressure inside the rigid gas tight enclosure monitored by the micro differential pressure switch returning to a safe value.

The system for warming a controlled atmosphere space as described above, further comprising a pressure sensor disposed between the heating device and the gas extraction device, configured to detect a pressure at a gas outlet of the gas pumping device.

The air-conditioned space heating system further comprises: a controller configured to monitor and adjust a temperature of the heating device and a gas flow rate.

The modified atmosphere space warming system of the above, wherein the controller is configured to monitor and adjust the opening and closing of the air inlet and/or the air outlet connected to the heating device.

The modified atmosphere space warming system of above, wherein the controller is configured to monitor and adjust the pressure within the rigid airtight enclosure.

The air-conditioned space heating system as described above, wherein the rigid air-tight enclosure comprises one or more layers of insulation boards disposed inside the rigid enclosure and/or outside the rigid enclosure

The air-conditioned space heating system can ensure that the rigid airtight enclosure structure is uniformly heated, prevents the local overheating phenomenon, is more stable in the heat flow process, has less environmental disturbance in the rigid airtight enclosure structure, and can prevent the damage to stored articles caused by too fast or uneven heating.

Drawings

Preferred embodiments of the present invention will now be described in further detail with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of a modified atmosphere space heating system according to one embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present 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.

In the following detailed description, reference is made to the accompanying drawings that form a part hereof and in which is shown by way of illustration specific embodiments of the application. In the drawings, like numerals describe substantially similar components throughout the different views. Various specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the present application. It is to be understood that other embodiments may be utilized and structural, logical or electrical changes may be made to the embodiments of the present application.

The controlled atmosphere curing technology is an effective method for storage by regulating and controlling the oxygen concentration in the storage environment. The modified atmosphere curing method not only can keep the original appearance characteristics of the stored goods and reduce the damage of the stored goods, but also can kill insects and prevent mildew, and is a green method for preventing and controlling the insects and the mildew. Researches show that on the basis of low-oxygen modified atmosphere, the temperature is properly increased, the insecticidal temperature is kept at 25-30 ℃, the insecticidal efficiency can be effectively improved, the insecticidal time is reduced, and the insecticidal cost is reduced. However, the method of killing insects by heating may cause damage to fragile articles such as books of ancient times. The prior air-conditioning insecticidal system does not have the function of temperature rise.

The application provides a controlled atmosphere space heating system, according to an embodiment of the application, the controlled atmosphere space heating system comprises a nitrogen making part, an airtight part, a control part and a heating part, wherein a gas adjusting part is further arranged between the nitrogen making part and the airtight part, the gas adjusting part is used for adjusting the concentration of nitrogen and introducing other gases except nitrogen, and the heating part can be used for heating the gas of a nitrogen source provided by the nitrogen making part or heating other gases introduced by the controlled atmosphere part and the like. The modified atmosphere space warming system uses a rigid airtight enclosure to provide better protection for fragile items and a pressure equalization section to keep the pressure of the airtight section within a preset range during temperature changes. In some embodiments, a rigid air tight enclosure requires better thermal insulation.

The technical solution of the present application is further explained by the following specific embodiments. It should be understood by those skilled in the art that the following descriptions are only provided for facilitating the understanding of the technical solutions of the present application, and should not be used to limit the scope of the present application.

Fig. 1 is a schematic view of a modified atmosphere space heating system according to one embodiment of the present application. As shown, the modified atmosphere space warming system 100 includes an airtight enclosure 110 for containing the storage items, and a nitrogen gas source (not shown) for providing nitrogen gas to the airtight enclosure such that an environment with a low oxygen content is formed within the airtight enclosure. In some embodiments, the airtight enclosure and the nitrogen gas source may be of application nos.: 201711048117.7, respectively; the name is: in a hypoxia insecticidal system and a control method thereof, or the application number is 201711046668. x; the name is an airtight enclosure structure and a nitrogen making machine in a traditional Chinese medicine hypoxia system and a control method thereof. The entire disclosure of the above application may also be incorporated herein by reference.

As shown in fig. 1, the air-tight enclosure 110 of the modified atmosphere space warming system 100 is a rigid air-tight enclosure, which is formed of a rigid material (e.g., steel, etc.), is stable in volume, and can provide good protection for fragile objects therein. The security of the fragile goods can be ensured even during transportation or in the event of an accident. In some embodiments, the airtight enclosure 110 may further include one or more layers of heat-insulating boards, which may be disposed inside the airtight enclosure 110 and/or outside the airtight enclosure 110, and may be used to insulate the inside of the airtight enclosure, so as to ensure that the airtight enclosure has better heat-insulating performance.

As shown in fig. 1, the temperature-raising system 100 of the controlled atmosphere space may further include a heating device 120 connected to the airtight enclosure 100 for providing a temperature-raising gas into the airtight enclosure, so that the temperature in the airtight enclosure is raised, which may be more beneficial for killing insects. In some embodiments, the heating device may heat the gas provided by the nitrogen gas source, for example, when the rigid airtight enclosure is subjected to a hypoxic treatment, the nitrogen gas input into the rigid airtight enclosure may be heated to achieve a suitably warm hypoxic environment. In some embodiments, the heating device may heat a gas other than that provided by the nitrogen gas source, such as: when the rigid airtight enclosure structure reaches the low-oxygen environment, the rigid airtight enclosure structure does not need to be conveyed with nitrogen, and gas in the rigid airtight enclosure structure can be heated, so that the stability of gas components in the rigid airtight enclosure structure is ensured, meanwhile, the low-oxygen environment with proper temperature can be maintained, and the energy for generating nitrogen is saved. In some embodiments, the heating device may be controlled using a PTC heating tube and a thyristor. In some embodiments, the heating device includes a plurality of air inlets and a plurality of baffles at different positions in the airtight enclosure, so as to circularly heat the gas in the storage.

In some embodiments, the heating device may cause a rate of temperature rise within the airtight enclosure to be no greater than 0.5 ℃/minute. In some embodiments, the heating device may be such that the uniformity of temperature rise within the airtight enclosure is no greater than 0.5 ℃/meter. In some embodiments, the heating device may ensure that the accuracy of the outlet temperature is maintained within ± 1 ℃ of the set point. In some embodiments, the heating device can also have an overtemperature protection function, so that the heating device is prevented from being damaged due to local overtemperature. It has been exemplarily explained above that although a heating device is used, the temperature variation inside the airtight enclosure is guaranteed to be uniform both in time and in space to prevent the damage of fragile articles inside the airtight enclosure caused by the drastic temperature variation.

As shown in fig. 1, the temperature-raising system 100 of the controlled atmosphere space may further include a pressure balancing device disposed on the airtight enclosure, and may be configured to maintain the pressure inside the enclosure within a predetermined range during a temperature change. According to an embodiment of the present application, the pressure balancing device includes a detection switch 131 and a safety valve 132, wherein the detection switch 131 is installed on the airtight enclosure, and can detect the pressure inside the airtight enclosure in real time; the safety valve 132 is disposed on the airtight enclosure for balancing pressure in the airtight enclosure and preventing damage to the airtight enclosure due to pressure changes. In some preferred embodiments, the safety valve is centrally located in the air tight enclosure.

In some embodiments, the detection switch 131 may be a micro-pressure difference switch, preferably with a pressure difference range of less than 50 pa. In some embodiments, when the micro-pressure differential switch detects that the pressure inside the airtight enclosure exceeds a safe value, the safety valve opens to balance the pressure inside and outside the airtight enclosure; when the micro-pressure difference switch detects that the pressure in the airtight enclosure returns to a safe value, the safety valve can be closed after a delay time. In some embodiments, the period of time may be 1-5 seconds, preferably 2 seconds. The delayed closing can reduce the misoperation of the micro-differential pressure switch, is beneficial to prolonging the service life of the micro-differential pressure switch and is also beneficial to ensuring the stability of the environment in the airtight enclosure structure.

According to an embodiment of the present application, the temperature-controlled space heating system 100 may further include a gas extraction device 140, which is connected to the airtight enclosure and can be used to extract gas from the airtight enclosure to ensure the pressure balance in the airtight enclosure. In some embodiments, the gas extraction device may be a heated fan.

In some embodiments, the gas extraction device 140 may be further connected to the heating device 120, so that the gas extracted by the gas extraction device is heated by the heating device 120 and then is conveyed to the airtight enclosure, so that the gas in the airtight enclosure can flow circularly, the uniform temperature rise of the gas in the airtight enclosure is realized, the uniformity of the pressure in the airtight enclosure is ensured, the uniformity of the temperature rise in the airtight enclosure is ensured, and the influence of the overpressure in the airtight enclosure or the rapid temperature change on the stored articles can be effectively prevented.

In some embodiments, the gas suction device comprises a plurality of air suction openings in different locations in the gas tight enclosure. In some embodiments, the plurality of air intake openings are spaced apart from the plurality of air intake openings. For example: on the opposite side of the airtight enclosure structure, or in the diagonal direction and the like, the temperature in the airtight enclosure structure is favorably and uniformly increased, the local temperature in the airtight enclosure structure is prevented from increasing, the heat can stably flow, the disturbance to the internal environment of the airtight enclosure structure is small, the temperature rise is stable, and the damage to stored articles is avoided.

In some embodiments, the gas extraction device 140 and the heating device 120 may be connected by a gas-tight pipeline 141, so as to communicate the air inlet and the air outlet of the airtight enclosure, thereby realizing a closed cycle of air conditioning inside the airtight enclosure, and ensuring the air tightness of the airtight enclosure. In some embodiments, the airtight pipeline 141 may be made of high temperature PP, which can withstand a temperature of 140 ℃. In some embodiments, the outside of the airtight pipe 141 may be further wrapped with a thermal insulation material to prevent heat loss.

According to one embodiment of the present application, the modified atmosphere space warming system 100 may further comprise a pressure sensor 150, which may be disposed in the gas-tight line 141 between the gas extraction device 140 and the heating device 120, and may be used to detect the pressure in the gas-tight line 141, or at the outlet of the gas extraction device, in real time. When the pressure value is available, the heating device can be controlled to start the heating gas pumping device to pump the gas; when no pressure value exists, the heating device is controlled to be closed, the phenomenon of dry burning of the heating device is avoided, the service life of the heating device is prolonged, and the safety of the temperature rising system of the air-conditioned space is ensured.

According to an embodiment of the present application, the temperature-rising system 100 of the controlled atmosphere space may further include one or more heating valves 160, which may be disposed at the air inlet and/or the air outlet of the airtight enclosure, and may isolate the airtight enclosure from the heating pipeline, so as to control the opening and closing of the airtight enclosure and the heating pipeline, and ensure the airtightness of the airtight enclosure. In some preferred embodiments, a heating valve is disposed between the heating device and the gas pumping device and/or between the gas pumping device and the gas-tight enclosure.

According to an embodiment of the present application, the temperature-controlled space-warming system 100 may further include one or more temperature sensors 170 distributed in the airtight enclosure, which may be used to detect the temperature inside the airtight enclosure, so as to precisely control the temperature inside the airtight enclosure. In some embodiments, the temperature sensor may also be disposed in other locations. For example: the gas outlet of the heating device can detect the temperature of the gas provided by the heating device, or the gas outlet of the gas pumping device can detect the temperature of the gas in the airtight enclosure structure.

According to one embodiment of the present application, the modified atmosphere space heating system 100 may also include a central controller 180 that may be used to monitor and adjust the entire modified atmosphere space heating system. For example: the temperature of the heating device, the gas flow rate, the heating valve, the gas extraction device, the pressure in the airtight enclosure, the safety valve, etc.

According to an embodiment of the present application, the central controller 180 may include a processor (not shown in the figure) which may receive feedback signals of the pressure sensor, the micro-pressure difference switch, the temperature sensor, and the like, control the heating device, the gas pumping device, the heating valve, the safety valve, and the like, and may achieve uniform and stable temperature rise in the airtight enclosure and control the pressure balance in the airtight enclosure to be stable. In some embodiments, the central controller 180 may further include a touch display (not shown), which may be used to display the operation of the modified atmosphere space warming system and may preset relevant parameters. In some embodiments, the central controller 180 may also include other electrical components. For example: the storage module, the communication module, the remote monitoring module and the like can realize data storage, communication, remote monitoring and the like.

This application gas-conditioning space heating system when using, through predetermineeing relevant environmental parameter to central controller in advance, the control is opened the heating valve to control gaseous suction device and open, the gas in the airtight envelope of suction, when pressure sensor detected the pressure value, control heating device opened, heats the gas of gaseous suction device suction, so reciprocating cycle. In some embodiments, the heating device may be controlled stepwise (e.g., the power of the heating device may be controlled to gradually increase) based on the temperature inside the airtight enclosure detected by the temperature sensor, so that the temperature inside the airtight enclosure steadily increases. In some embodiments, when the temperature sensor detects that the temperature in the airtight enclosure reaches a predetermined threshold, the gas pumping device is controlled to stop pumping, and the heating valve is controlled to close, and when the pressure sensor detects no pressure, the heating device is controlled to stop heating. In some embodiments, when the micro-pressure difference switch detects that the pressure exceeds a safe value when heating the gas inside the airtight enclosure, the safety valve is controlled to be opened to balance the pressure inside and outside the airtight enclosure.

The air-conditioned space heating system can ensure that the temperature rise in the airtight enclosure structure is uniform, prevents the local overheating phenomenon, is more stable in the heat flow process, has less environmental disturbance in the airtight enclosure structure, and can prevent the damage to stored articles caused by too fast or uneven temperature rise. And this application gas-conditioned space heating system's rising temperature device all sets up in airtight envelope's outside, does not occupy airtight envelope inner space, improves airtight envelope's availability factor, and it is more convenient to maintain moreover to do not hinder the environment in the airtight envelope when maintaining.

The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention, and therefore, all equivalent technical solutions should fall within the scope of the present invention.