CN221076840U - Liquid cooling device with high-precision temperature and flow regulation - Google Patents
Liquid cooling device with high-precision temperature and flow regulation Download PDFInfo
- Publication number
- CN221076840U CN221076840U CN202322746106.3U CN202322746106U CN221076840U CN 221076840 U CN221076840 U CN 221076840U CN 202322746106 U CN202322746106 U CN 202322746106U CN 221076840 U CN221076840 U CN 221076840U
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- liquid
- heat exchanger
- plate heat
- cooling
- temperature
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- 239000007788 liquid Substances 0.000 title claims abstract description 94
- 238000001816 cooling Methods 0.000 title claims abstract description 23
- 239000000110 cooling liquid Substances 0.000 claims abstract description 38
- 239000003507 refrigerant Substances 0.000 claims abstract description 24
- 230000008054 signal transmission Effects 0.000 claims description 5
- 239000002826 coolant Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model discloses a liquid cooling device with high-precision temperature and flow regulation, which comprises a plate heat exchanger, a refrigerating system and a liquid supply system, wherein a refrigerant output by a compressor in the refrigerating system sequentially passes through a condenser, a liquid storage device and a thermal expansion valve and then enters the plate heat exchanger, and then flows out of the plate heat exchanger and returns to the compressor through a gas-liquid separator; the circulating pump in the liquid supply system conveys the cooling liquid in the cooling liquid tank to the plate heat exchanger, the cooling liquid flowing out of the plate heat exchanger returns to the cooling liquid tank, and the cooling liquid supply system further comprises an electric control system, an electronic expansion valve and a two-way valve, wherein the electronic expansion valve is connected with the compressor and the condenser in parallel, the two-way valve is connected between the circulating pump and the plate heat exchanger, and the electric control system is respectively and electrically connected with the electronic expansion valve and the two-way valve. The utility model has the functions of high-precision temperature and flow regulation, has simple structure, safety and reliability, and can be widely applied to liquid cooling devices.
Description
Technical Field
The utility model relates to the field of liquid cooling devices, in particular to a liquid cooling device with high-precision temperature and flow regulation.
Background
The liquid cooling device is generally used for providing low-temperature cooling liquid for the heating load and can also be used for testing the heating value of the heating load. As a test instrument, the liquid cooling device needs to manually set a temperature target value and a flow target value, and the liquid cooling device is required to realize high-precision control of temperature and flow, but the existing liquid cooling device cannot meet the requirements of high-precision temperature and flow control of target equipment.
Disclosure of utility model
The utility model provides a liquid cooling device with high-precision temperature and flow regulation, which solves the problem that the liquid cooling device in the prior art cannot realize high-precision temperature and flow control.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The liquid cooling device with high-precision temperature and flow regulation comprises a plate heat exchanger, a refrigerating system and a liquid supply system, wherein the refrigerating system comprises a compressor, a condenser, a liquid storage device, a thermal expansion valve and a gas-liquid separator, and a refrigerant output by the compressor sequentially passes through the condenser, the liquid storage device and the thermal expansion valve and then enters the plate heat exchanger, flows out of the plate heat exchanger and returns to the compressor through the gas-liquid separator; the liquid supply system comprises a cooling liquid tank and a circulating pump, wherein the circulating pump conveys cooling liquid in the cooling liquid tank to the plate heat exchanger, the cooling liquid forms heat exchange with the refrigerant in the plate heat exchanger, the cooling liquid flowing out of the plate heat exchanger returns to the cooling liquid tank, the liquid supply system further comprises an electric control system, an electronic expansion valve and a two-way valve, an inlet bypass of the electronic expansion valve is communicated between a compressor and a condenser, an outlet bypass of the electronic expansion valve is communicated between the thermal expansion valve and the plate heat exchanger, the two-way valve is connected between the circulating pump and the plate heat exchanger, and the electric control system is respectively and electrically connected with the electronic expansion valve and the two-way valve and controls the opening of the electronic expansion valve and the opening of the two-way valve through the electric control system.
Further, the thermal expansion valve is provided with a temperature sensing bulb, the temperature sensing bulb is arranged between the plate heat exchanger and the gas-liquid separator, and the temperature sensing bulb senses the temperature of the refrigerant flowing out of the plate heat exchanger.
Further, the device also comprises a liquid supply temperature sensor, wherein the liquid supply temperature sensor is arranged between the circulating pump and the plate heat exchanger, is electrically connected with the electric control system through signal transmission, and is used for collecting the temperature of the cooling liquid conveyed to the plate heat exchanger and sending the cooling liquid into the electric control system.
Further, the cooling device also comprises a liquid supply flow sensor, wherein the liquid supply flow sensor is arranged between the circulating pump and the plate heat exchanger, is electrically connected with the electric control system through signal transmission, and is used for collecting the flow of the cooling liquid which is conveyed to the plate heat exchanger and conveying the flow into the electric control system.
The utility model discloses a refrigerating system, which comprises a thermal expansion valve, an electronic expansion valve and a bypass component, wherein the thermal expansion valve is used as a throttling component; the thermal expansion valve is not controlled by an electric control system, the liquid supply temperature is used as a target parameter, and the electric control system controls the opening of the electronic expansion valve to realize accurate temperature control. In the liquid supply system, an adjustable two-way valve is adopted to supply liquid flow as a target parameter, and an electric control system controls the opening of the two-way valve to realize accurate control of the flow.
Compared with the prior art, the utility model has the advantages that:
1. The liquid cooling device provided by the utility model has the functions of high-precision temperature and flow regulation;
2. the utility model has simple structure, safety and reliability;
3. the utility model has simple principle and wide application range and can be widely applied to liquid cooling devices.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1, this embodiment discloses a liquid cooling device with high-precision temperature and flow regulation, which includes a plate heat exchanger 7, a refrigeration system, a liquid supply system, an electric control system 19, an electronic expansion valve 8, and a two-way valve 17, wherein the plate heat exchanger 7 is provided with a refrigerant flow channel and a cooling liquid flow channel, and the following components:
The refrigeration system comprises a compressor 2, a condenser 3, a liquid storage device 5, a thermal expansion valve 6 and a gas-liquid separator 1. The refrigerant outlet of the compressor 2 is connected with the inlet of the condenser 3 through a pipeline, the condenser 3 is provided with a condensing fan 4, and the outlet of the condenser 3 is connected with the inlet of the liquid reservoir 5 through a pipeline. The outlet of the liquid storage device 5 is connected with the inlet of the thermal expansion valve 6 through a pipeline, the outlet of the thermal expansion valve 6 is connected with the inlet of a refrigerant flow passage in the plate heat exchanger 7 through a pipeline, and the outlet of the refrigerant flow passage in the plate heat exchanger 7 is connected with the inlet of the gas-liquid separator 1 through a pipeline. The thermal expansion valve 6 is provided with a temperature sensing bulb 9, the temperature sensing bulb 9 is arranged on a pipeline between the outlet of the refrigerant flow passage in the plate heat exchanger 7 and the inlet of the gas-liquid separator 1, and the temperature of the refrigerant flowing out of the plate heat exchanger 7 is sensed by the temperature sensing bulb 9. The outlet of the gas-liquid separator 1 is connected with the refrigerant return port of the compressor 2 through a pipeline.
Therefore, the refrigerant output by the compressor 2 sequentially passes through the condenser 3, the liquid storage device 5 and the thermal expansion valve 6, then enters a refrigerant flow channel of the plate heat exchanger 7, flows out of the plate heat exchanger 7, and returns to the compressor through the gas-liquid separator 1; thereby forming a refrigerant cycle.
The electronic expansion valve 8 is arranged in the refrigerating system, specifically, an inlet of the electronic expansion valve 8 is communicated to a pipeline between a refrigerant outlet of the compressor 2 and an inlet of the condenser 3 through a pipeline bypass, and an outlet of the electronic expansion valve 8 is communicated to a pipeline between an outlet of the thermal expansion valve 6 and a refrigerant flow passage inlet of the plate heat exchanger 7 through a pipeline bypass.
The liquid supply system comprises a cooling liquid tank 10, a circulating pump 11, a filter 12, a safety valve 18, a liquid supply port 15 and a liquid return port 16. The inlet of the cooling liquid tank 10 is connected with the cooling liquid flow passage outlet of the plate heat exchanger 7 through a pipeline, the outlet of the cooling liquid tank 10 is connected with the inlet of the circulating pump 11 through a pipeline, the outlet of the circulating pump 11 is connected with the inlet of the filter 12 through a pipeline, the outlet of the filter 12 is connected with the inlet of the liquid supply port 15 through a pipeline, the outlet of the liquid supply port 15 is connected with the inlet of the liquid return port 16 through a pipeline, the inlet of the safety valve 18 is communicated to the outlet of the filter 12 and the pipeline between the inlets of the liquid supply port 15 through a pipeline bypass, and the outlet of the safety valve 18 is communicated to the cooling liquid flow passage outlet of the plate heat exchanger 7 and the pipeline between the inlets of the cooling liquid tank 10 through a pipeline bypass. The two-way valve 17 is an adjustable two-way valve, an inlet of the two-way valve 17 is connected with an outlet of the liquid return port 16 through a pipeline, and an outlet of the two-way valve 17 is connected with an inlet of a cooling liquid flow passage of the plate heat exchanger 7 through a pipeline.
Thereby, the circulation pump 11 conveys the coolant in the coolant tank 10 to the coolant flow passage of the plate heat exchanger 7 through the filter 12, the liquid supply port 15, the liquid return port 16, and the two-way valve 17 in this order, the coolant exchanges heat with the refrigerant in the plate heat exchanger 7, and the coolant flowing out of the plate heat exchanger 7 is returned to the coolant tank 10.
The embodiment also comprises a liquid supply temperature sensor 13 and a liquid supply flow sensor 14, wherein the liquid supply temperature sensor 13 and the liquid supply flow sensor 14 are respectively arranged on pipelines between the outlet of the filter 12 and the inlet of the liquid supply port 15, the liquid supply temperature sensor 13 collects the temperature of the cooling liquid conveyed by the circulating pump 11, and the liquid supply flow sensor 14 collects the flow of the cooling liquid conveyed by the circulating pump 14.
The liquid supply temperature sensor 13 and the liquid supply flow sensor 14 are respectively and electrically connected with an electric control system 19 through signal transmission, and the electric control system 19 is also respectively and controllably electrically connected with the compressor 2, the condensing fan 4, the circulating pump 11, the electronic expansion valve 8 and the two-way valve 17.
In this embodiment, the electronic control system 19 is used to control the operation of the compressor 2, the condensing fan 4, the circulating pump 11, the electronic expansion valve 8, and the two-way valve 17.
In the operation of the liquid cooling device, the electric control system 19 controls the compressor 2, the condensing fan 4 and the circulating pump 11 to work, the refrigerating system conveys low-temperature refrigerant to the air inlet of the plate heat exchanger 7, the liquid supply system conveys high-temperature cooling liquid to the liquid inlet of the plate heat exchanger 7 through the circulating pump, the low-temperature refrigerant exchanges heat with the high-temperature cooling liquid in the plate heat exchanger 7, and the low-temperature cooling liquid is output from the liquid outlet of the plate heat exchanger 7.
In the refrigeration system, the thermostatic expansion valve 6 plays a role in throttling, and is not controlled by the electric control system 19. The electronic expansion valve 8 serves as a bypass for adjusting the throttle amount of the refrigerant. With the liquid supply temperature as a target parameter, the electronic control system 19 adjusts the opening of the electronic expansion valve 8 through a PID algorithm to realize accurate control of the liquid supply temperature. In the liquid supply system, an adjustable two-way valve 17 is adopted to supply liquid flow as a target parameter, and an electronic control system 19 adjusts the opening of the two-way valve 17 through a PID algorithm to realize accurate control of the flow.
The scheme can be seen from the above scheme: when the liquid cooling device works, in the refrigerating system, the thermal expansion valve 6 plays a role in throttling, and the control of the electric control system 19 is not needed. The electronic expansion valve 8 serves as a bypass for adjusting the throttle amount of the refrigerant. With the liquid supply temperature as a target parameter, the electronic control system 19 adjusts the opening of the electronic expansion valve 8 through a PID algorithm to realize accurate control of the liquid supply temperature. In the liquid supply system, an adjustable two-way valve 17 is adopted to supply liquid flow as a target parameter, and an electronic control system 19 adjusts the opening of the two-way valve 17 through a PID algorithm to realize accurate control of the flow.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, and the examples described herein are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. The individual technical features described in the above-described embodiments may be combined in any suitable manner without contradiction, and such combination should also be regarded as the disclosure of the present disclosure as long as it does not deviate from the idea of the present utility model. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
The present utility model is not limited to the specific details of the above embodiments, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the protection scope of the present utility model without departing from the scope of the technical concept of the present utility model, and the technical content of the present utility model is fully described in the claims.
Claims (4)
1. The liquid cooling device with high-precision temperature and flow regulation comprises a plate heat exchanger, a refrigerating system and a liquid supply system, wherein the refrigerating system comprises a compressor, a condenser, a liquid storage device, a thermal expansion valve and a gas-liquid separator, and a refrigerant output by the compressor sequentially passes through the condenser, the liquid storage device and the thermal expansion valve and then enters the plate heat exchanger, flows out of the plate heat exchanger and returns to the compressor through the gas-liquid separator; the liquid supply system comprises a cooling liquid tank and a circulating pump, wherein the circulating pump conveys cooling liquid in the cooling liquid tank to the plate heat exchanger, the cooling liquid forms heat exchange with the refrigerant in the plate heat exchanger, and the cooling liquid flowing out of the plate heat exchanger returns to the cooling liquid tank.
2. The liquid cooling device with high-precision temperature and flow regulation according to claim 1, wherein the thermal expansion valve is provided with a temperature sensing bulb, the temperature sensing bulb is arranged between the plate heat exchanger and the gas-liquid separator, and the temperature of the refrigerant flowing out of the plate heat exchanger is sensed by the temperature sensing bulb.
3. The liquid cooling device with high-precision temperature and flow regulation according to claim 1, further comprising a liquid supply temperature sensor, wherein the liquid supply temperature sensor is arranged between the circulating pump and the plate heat exchanger, is electrically connected with the electric control system through signal transmission, and is used for collecting the temperature of the cooling liquid conveyed to the plate heat exchanger and conveying the cooling liquid into the electric control system.
4. The liquid cooling device with high-precision temperature and flow regulation according to claim 1, further comprising a liquid supply flow sensor, wherein the liquid supply flow sensor is arranged between the circulating pump and the plate heat exchanger, the liquid supply flow sensor is electrically connected with the electric control system through signal transmission, and the liquid supply flow sensor collects the flow of the cooling liquid conveyed to the plate heat exchanger and sends the flow of the cooling liquid to the electric control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322746106.3U CN221076840U (en) | 2023-10-13 | 2023-10-13 | Liquid cooling device with high-precision temperature and flow regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322746106.3U CN221076840U (en) | 2023-10-13 | 2023-10-13 | Liquid cooling device with high-precision temperature and flow regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221076840U true CN221076840U (en) | 2024-06-04 |
Family
ID=91256424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322746106.3U Active CN221076840U (en) | 2023-10-13 | 2023-10-13 | Liquid cooling device with high-precision temperature and flow regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221076840U (en) |
-
2023
- 2023-10-13 CN CN202322746106.3U patent/CN221076840U/en active Active
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