阅读说明：本技术 一种多效高温覆叠式烘干系统 (Multi-effect high-temperature overlapping type drying system ) 是由 张静风 李庆亮 于 2021-09-30 设计创作，主要内容包括：本发明公开了一种多效高温覆叠式烘干系统,所述烘干系统由高温干燥系统、低温干燥系统、四通阀、工艺水箱、两个电动流量阀、管道循环水泵、干燥仓和蒸馏水溢流口组成；所述低温干燥系统之间通过四通阀连接,所述低温干燥系统的输出端连接真空泵,所述真空泵与工艺水箱连接,所述蒸馏水溢流口安装于所述工艺水箱上,所述蒸馏水溢流口用于排水,所述高温干燥系统与低温干燥系统互通管道连接,所述干燥仓的输出端与所述高温干燥系统连接,所述管道循环水泵安装于干燥仓和高温干燥系统之间,所述高温干燥系统和低温干燥系统连接的管道上安装电动流量阀；本发明可以实现干燥过程中的余热回收,储存再利用,节能环保无异味,具有良好的市场应用价值。(The invention discloses a multi-effect high-temperature overlapping type drying system, which consists of a high-temperature drying system, a low-temperature drying system, a four-way valve, a process water tank, two electric flow valves, a pipeline circulating water pump, a drying bin and a distilled water overflow port; the low-temperature drying systems are connected through a four-way valve, the output ends of the low-temperature drying systems are connected with a vacuum pump, the vacuum pump is connected with a process water tank, a distilled water overflow port is arranged on the process water tank and used for draining water, the high-temperature drying systems are connected with the low-temperature drying systems through pipelines, the output ends of the drying bins are connected with the high-temperature drying systems, the pipeline circulating water pump is arranged between the drying bins and the high-temperature drying systems, and electric flow valves are arranged on the pipelines connected with the high-temperature drying systems and the low-temperature drying systems; the invention can realize waste heat recovery and storage recycling in the drying process, is energy-saving, environment-friendly and free from peculiar smell, and has good market application value.)

1. A multi-effect high-temperature overlapping type drying system is characterized in that the drying system consists of a high-temperature drying system, a low-temperature drying system, a four-way valve, a process water tank, two electric flow valves, a pipeline circulating water pump, a drying bin and a distilled water overflow port; the low-temperature drying system is connected through a four-way valve, the output end of the low-temperature drying system is connected with a vacuum pump, the vacuum pump is connected with a process water tank, a distilled water overflow port is arranged on the process water tank and used for draining water, the high-temperature drying system is connected with the low-temperature drying system through a pipeline, the output end of the drying bin is connected with the high-temperature drying system, the pipeline circulating water pump is arranged between the drying bin and the high-temperature drying system, and an electric flow valve is arranged on the pipeline connected with the high-temperature drying system and the low-temperature drying system.

2. The multi-effect high-temperature overlapping type drying system of claim 1, wherein the low-temperature drying system comprises a first heat pump compressor, a first plate heat exchanger, a second plate heat exchanger, a third plate heat exchanger, a fan and a condenser; one end of the first heat pump compressor is connected with a four-way valve, the four-way valve is connected with the first plate heat exchanger, the other end of the first plate heat exchanger is connected with one end of a fan, the other end of the fan is connected with one end of the second plate heat exchanger through a pipeline, the other end of the second plate heat exchanger is connected with the third plate heat exchanger, and a port of the third plate heat exchanger is connected with a condenser.

3. The multi-effect high-temperature overlapping type drying system of claim 1, wherein a throttle valve is arranged on a connecting pipeline between the fan and the second plate heat exchanger.

4. The multi-effect high-temperature overlapping type drying system of claim 1, wherein the low-temperature drying system absorbs heat from air to supply starting heat energy to the drying system, and the fan, the second plate heat exchanger and the third plate heat exchanger are used in cooperation to realize large-temperature-difference environment operation.

5. The multi-effect high-temperature overlapping type drying system of claim 1, wherein the high-temperature drying system comprises a second heat pump compressor, a fourth plate heat exchanger and a fifth plate heat exchanger; one end of the second heat pump compressor is connected with the second plate heat exchanger, the other end of the second heat pump compressor is connected with the fifth plate heat exchanger, and the third plate heat exchanger is connected with the fourth plate heat exchanger.

6. The multi-effect high-temperature overlapping type drying system of claim 1, wherein the vacuum pump pumps out steam in the drying chamber to generate negative pressure in the drying chamber, and the pumped steam is cooled in two stages to become distilled water and is discharged through the distilled water overflow port.

7. The multi-effect high-temperature overlapping type drying system of claim 1, wherein when the high-temperature drying system converts low heat energy of the low-temperature drying system and steam heat in the drying chamber into high heat energy, the heat is transferred into the licorice chamber through a pipeline circulating water pump, so that the heat is recycled.

8. The multiple-effect high-temperature overlapping type drying system of claim 2, wherein both the first plate heat exchanger and the second plate heat exchanger are multiple-effect evaporation and condensation, and the first plate heat exchanger and the second plate heat exchanger form a double-machine overlapping type heat recycling system.

Technical Field

The invention relates to the field of gas treatment of kitchen and kitchen waste, in particular to a multi-effect high-temperature overlapping type drying system.

Background

The prior kitchen waste drying technology can generate a large amount of waste heat and peculiar smell in the operation process, has overlarge energy consumption, brings great harm and pollution to the environment and the periphery and resource waste, the heat pump belongs to the most effective energy-saving scheme on the market at the present stage, but has great disadvantages for the heat pump in the negative pressure drying field, the main disadvantages are that the span of heat absorption and heat release of the heat pump is very small (for example, the condensation end of the heat pump is 95-105 ℃, the residual temperature of steam after the evaporation end is absorbed is 40-50 ℃, the evaporation temperature is high, so the service life of the heat pump system is reduced, the heat of the steam cannot be completely absorbed, the heat is wasted when the heat pump is discharged to the atmosphere, and the uncondensed gas has pungent smell when the gas is discharged), in addition, the dried material belongs to a high temperature state at the discharge stage, so the environmental temperature is increased when the material is discharged, meanwhile, high-temperature steam in the material continuously releases heat and peculiar smell to the environment in the discharging process, and the problems that the electric heating is needed to assist in temperature rise and energy consumption is too high before the equipment runs are solved, so that the purposes of environmental protection, energy conservation and emission reduction are overcome, and therefore, the prior art has defects and needs to be improved.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides a multi-effect high-temperature overlapping type drying system to solve the problems.

The invention provides a multi-effect high-temperature overlapping type drying system, which consists of a high-temperature drying system, a low-temperature drying system, a four-way valve, a process water tank, two electric flow valves, a pipeline circulating water pump, a drying bin and a distilled water overflow port; the low-temperature drying system is connected through a four-way valve, the output end of the low-temperature drying system is connected with a vacuum pump, the vacuum pump is connected with a process water tank, a distilled water overflow port is arranged on the process water tank and used for draining water, the high-temperature drying system is connected with the low-temperature drying system through a pipeline, the output end of the drying bin is connected with the high-temperature drying system, the pipeline circulating water pump is arranged between the drying bin and the high-temperature drying system, and an electric flow valve is arranged on the pipeline connected with the high-temperature drying system and the low-temperature drying system.

Preferably, the low-temperature drying system comprises a heat pump compressor I, a plate heat exchanger II, a plate heat exchanger III, a fan and a condenser; one end of the first heat pump compressor is connected with a four-way valve, the four-way valve is connected with the first plate heat exchanger, the other end of the first plate heat exchanger is connected with one end of a fan, the other end of the fan is connected with one end of the second plate heat exchanger through a pipeline, the other end of the second plate heat exchanger is connected with the third plate heat exchanger, and a port of the third plate heat exchanger is connected with a condenser.

Preferably, a throttle valve is arranged on a connecting pipeline between the fan and the second plate heat exchanger.

Preferably, the low-temperature drying system absorbs heat from air and supplies the heat to the drying system, and the fan, the plate heat exchanger II and the plate heat exchanger III are matched to realize large-temperature-difference environment work.

Preferably, the high-temperature drying system comprises a heat pump compressor II, a plate heat exchanger IV and a plate heat exchanger V; one end of the air heat pump compressor II is connected with the plate heat exchanger II, the other end of the heat pump compressor II is connected with the plate heat exchanger V, and the plate heat exchanger III is connected with the plate heat exchanger IV.

Preferably, the vacuum pump is used for pumping steam in the drying bin to generate negative pressure in the drying bin, and the pumped steam is changed into distilled water through two-stage temperature reduction and is discharged through the distilled water overflow port.

Preferably, when the high-temperature drying system converts the low heat energy of the low-temperature drying system and the steam heat in the drying bin into high heat energy, the heat is transferred into the licorice root bin through the pipeline circulating water pump, and the heat is recycled.

Preferably, the first plate heat exchanger and the second plate heat exchanger are both multi-effect evaporation and condensation, and the first plate heat exchanger and the second plate heat exchanger form a double-machine overlapping type heat recovery and reuse system.

Compared with the prior art, the invention realizes the low-temperature discharge of the evaporated distilled water without pollution and peculiar smell, can realize the drying in a low-temperature environment, the low-temperature discharge and the low-temperature discharge of the distilled water, mainly realizes the large-temperature cross-domain drying field through the multi-effect heat exchange function of a low-temperature drying system, and achieves the purposes of energy conservation and emission reduction; the waste heat recovery (excessive system heat energy caused by long-time operation of the heat pump, high temperature of circulating liquid of the drying system after drying is finished, and the dried material and the circulating liquid can be cooled to normal temperature after drying is finished) in the drying process can be realized, and the energy-saving environment-friendly drying system is energy-saving, environment-friendly and free of peculiar smell.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

a first plate heat exchanger 1; a fan 2; a second plate heat exchanger 3; a four-way valve 4; a first heat pump compressor 5; a third plate heat exchanger 6; a vacuum pump 7; a plate heat exchanger IV 8; a second heat pump compressor 9; a process water tank 10; a condenser 11; an electrically operated flow valve 12; a fifth plate heat exchanger 14; a pipeline circulating water pump 15; a drying bin 16; a distilled water overflow port 17.

Detailed Description

The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The present invention will be described in detail with reference to the accompanying drawings.

One embodiment as shown in fig. 1: a multi-effect high-temperature overlapping type drying system is composed of a high-temperature drying system, a low-temperature drying system, a four-way valve 4, a process water tank 10, two electric flow valves 12, a pipeline circulating water pump 15, a drying bin 16 and a distilled water overflow port 17; the low-temperature drying system is connected through a four-way valve 4, the output end of the low-temperature drying system is connected with a vacuum pump 7, the vacuum pump 7 is connected with a process water tank 10, a distilled water overflow port 17 is installed on the process water tank 10, the distilled water overflow port 17 is used for draining water, the high-temperature drying system is connected with the low-temperature drying system through a pipeline, the output end of a drying bin 16 is connected with the high-temperature drying system, a pipeline circulating water pump 15 is installed between the drying bin 16 and the high-temperature drying system, and an electric flow valve 12 is installed on the pipeline connected with the high-temperature drying system and the low-temperature drying system.

Embodiment 2 on the basis of embodiment 1, the low-temperature drying system includes a heat pump compressor 5, a plate heat exchanger 1, a plate heat exchanger 3, a plate heat exchanger 6, a fan 2, and a condenser 11; the heat pump system is characterized in that one end of the first heat pump compressor 5 is connected with a four-way valve 4, the four-way valve 4 is connected with the first plate heat exchanger 1, the other end of the first plate heat exchanger 1 is connected with one end of a fan 2, the other end of the fan 2 is connected with one end of the second plate heat exchanger 3 through a pipeline, the other end of the second plate heat exchanger 3 is connected with a third plate heat exchanger 6, and a port of the third plate heat exchanger is connected with a condenser 11.

Embodiment 3 on the basis of embodiment 1, a throttle valve is arranged on a connecting pipeline between the fan 2 and the second plate heat exchanger 3.

Embodiment 4 is based on embodiment 1, the low-temperature drying system absorbs heat from air and supplies the heat to the starting heat energy of the drying system, and the fan 2, the second plate heat exchanger 3 and the third plate heat exchanger 6 are used in cooperation to realize large-temperature-difference environment operation.

Embodiment 5 on the basis of embodiment 1, the high-temperature drying system includes a second heat pump compressor 9, a fourth plate heat exchanger 8, and a fifth plate heat exchanger 14; one end of the second heat pump compressor 9 is connected with the second plate heat exchanger 3, the other end of the second heat pump compressor 9 is connected with the fifth plate heat exchanger 14, and the third plate heat exchanger 6 is connected with the fourth plate heat exchanger 8.

Embodiment 6 in addition to embodiment 1, the vacuum pump 7 pumps out the steam in the drying chamber 16 to generate negative pressure in the drying chamber 16, and the pumped steam is changed into distilled water through two-stage temperature reduction and is discharged through the distilled water overflow port 17.

Embodiment 7 based on embodiment 1, when the high-temperature drying system converts the low heat energy of the low-temperature drying system and the steam heat in the drying chamber 16 into high heat energy, the heat is transferred into the licorice root chamber by the pipe circulating water pump 15, so that the heat is recycled.

Embodiment 7 is based on embodiment 2, the first plate heat exchanger 1 and the second plate heat exchanger 3 are both multi-effect evaporation and condensation, and the first plate heat exchanger 1 and the second plate heat exchanger 3 form a dual-unit overlapping heat recovery and reuse system. .

The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.