CN212409114U - Secondary cooling unit for radar load - Google Patents
Secondary cooling unit for radar load Download PDFInfo
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- CN212409114U CN212409114U CN202020885683.4U CN202020885683U CN212409114U CN 212409114 U CN212409114 U CN 212409114U CN 202020885683 U CN202020885683 U CN 202020885683U CN 212409114 U CN212409114 U CN 212409114U
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Abstract
The utility model relates to a radar is aftercooling unit for load, including heat dissipation unit and confession liquid circulation unit, the heat dissipation unit includes forced air cooling heat transfer unit and refrigeration heat transfer unit, and forced air cooling heat transfer unit includes plate heat exchanger and fan, refrigeration heat transfer unit includes the refrigeration circuit who concatenates by compressor, condenser, liquid storage pot, drier-filter, expansion valve and plate evaporator, concatenates between the liquid feed pump and confession liquid reel after plate heat exchanger and plate evaporator connect in parallel, and the output of liquid feed pump passes through electric butterfly valve to be connected with plate heat exchanger and plate evaporator's input respectively, and plate heat exchanger and plate evaporator's output is connected with the confession liquid reel through valve and check valve. The heat dissipation unit has two modes of wind cooling and compression cooling, and can select a proper cooling mode according to the ambient temperature; meanwhile, the number of the working heat dissipation units can be selected according to the temperature of the refrigerant, so that the waste of energy is avoided.
Description
Technical Field
The utility model relates to a refrigeration field, concretely relates to secondary cooling unit for radar load.
Background
The radar load generates a large amount of heat during operation, which needs to be cooled to ensure operational stability. Because the ambient temperature constantly changes, adopt single compression refrigeration or air-cooled refrigerated mode can not satisfy the refrigeration demand of radar load under different temperatures. The high-power refrigerating system can meet the refrigerating requirement, but a large amount of energy is wasted.
Disclosure of Invention
For solving among the prior art radar load refrigeration mode unit, can not alternate the defect of refrigeration mode according to ambient temperature, the utility model aims to provide a secondary cooling unit is used to radar load.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
the secondary cooling unit for the radar load comprises a heat dissipation unit and a liquid supply circulating unit, wherein the liquid supply circulating unit comprises a liquid supply pump, a liquid supply reel and a liquid return reel, the liquid supply pump, the heat dissipation unit, the liquid supply reel, the load and the liquid return reel are connected in series to form heat exchange circulation, the heat dissipation unit comprises an air cooling heat exchange unit and a refrigeration heat exchange unit, the air cooling heat exchange unit comprises a plate heat exchanger and a fan, the refrigeration heat exchange unit comprises a refrigeration loop formed by connecting a compressor, a condenser, a liquid storage tank, a drying filter, an expansion valve and a plate evaporator in series, the plate heat exchanger and the plate evaporator are connected in parallel and then are connected in series between the liquid supply pump and the liquid supply reel, the output end of the liquid supply pump is respectively connected with the input ends of the plate heat exchanger and the plate evaporator through an electric butterfly valve, and the output ends of the plate heat exchanger and the plate evaporator are connected with the liquid supply reel through a valve and a check valve.
Furthermore, the liquid supply circulation system is connected with a refrigerant processing unit, the refrigerant processing unit comprises a liquid supplementing system, a deaerator and a heater, the deaerator and the heater are connected between the input end of the liquid supply pump and the liquid return reel in series, the liquid supplementing system comprises a liquid supplementing box, a liquid supplementing pump, a filter, a ball valve and a check valve which are connected in series in sequence, and the liquid supplementing system outputs the liquid supplementing system to the heater.
Further, the heat dissipation device comprises a plurality of groups of heat dissipation units connected in parallel.
Furthermore, the device comprises two stages of liquid supply pumps which are connected in parallel, and butterfly valves are respectively installed at the input end and the output end of each liquid supply pump.
Furthermore, a deaerator and a heater are connected in series between the liquid supply pump and the liquid return reel.
Further, the input end of the liquid supply pump is connected with an expansion tank.
Further, an electric butterfly valve and an overflow valve are installed between the liquid supply reel and the liquid return reel in parallel, and the overflow valve overflows to the liquid supplementing box.
Still further, the connection ends of the liquid supply reel and the liquid return reel and the load are respectively provided with a temperature sensor, a pressure sensor and a flow sensor.
After taking above technical scheme, the beneficial effects of the utility model are that: the heat dissipation unit has two modes of wind cooling and compression cooling, and can select a proper cooling mode according to the ambient temperature; meanwhile, the number of the working heat dissipation units can be selected according to the temperature of the refrigerant, so that the waste of energy is avoided.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:
as shown in the figure, the secondary cooling unit for the radar load comprises a heat dissipation unit, a liquid supply circulating unit, a refrigerant processing unit and a control unit.
The heat dissipation unit comprises an air cooling heat exchange unit and a refrigeration heat exchange unit which are arranged in parallel. The air cooling heat exchange unit comprises a plate heat exchanger 1 and a fan 2; the refrigeration heat exchange unit comprises a refrigeration loop formed by connecting a compressor 3, a condenser 4, a liquid storage tank 5, a drying filter 6, an expansion valve 7 and a plate evaporator 8 in series. Five groups of heat dissipation units connected in parallel are arranged in the unit, and one heat dissipation unit is usually used for four purposes. The air cooling heat exchange units of the five groups of heat dissipation units share the main liquid inlet pipeline 9 and the main liquid outlet pipeline 10, and the refrigeration heat exchange units of the five groups of heat dissipation units share the main liquid inlet pipeline 11 and the main liquid outlet pipeline 12. Electromagnetic valves are respectively arranged on the liquid inlet branch and the liquid outlet branch of each unit to control the number of the heat exchange/refrigeration units and the number of the heat exchange/refrigeration units participating in the work.
The refrigerant treatment unit comprises a liquid supplementing system, a deaerator 13 and a heater 14, wherein the liquid supplementing system comprises a liquid supplementing box 15, a liquid supplementing pump 16, a filter 17, a ball valve 18 and a check valve 19 which are sequentially connected in series, and the liquid supplementing system outputs to the heater 14.
The liquid supply circulation unit is composed of a group of liquid supply pumps 20, liquid supply reels 21 and liquid return reels 22 which are connected in parallel, and the liquid supply pumps 20, the heat dissipation unit, the liquid supply reels 21, the load and the liquid return reels 22 are connected in series through pipelines to form heat exchange circulation. The two ends of one group of liquid supply pumps 20 are respectively provided with a valve, so that the running number of the liquid supply pumps can be conveniently controlled, and the shutdown maintenance of one liquid supply pump can be conveniently realized. The input end of the liquid supply pump 20 is connected with an expansion tank 23 to ensure the liquid supply pressure. The liquid supply pump 20 connects the refrigerant ethylene glycol to the main liquid inlet pipe 9 of the air cooling heat exchange unit and the main liquid inlet pipe 11 of the refrigeration heat exchange unit through the filter 24 and the electric butterfly valve 25, respectively. The heat exchange mode is selected by controlling the electric butterfly valve 25. When the air-cooled heat exchange unit is selected by the system, the refrigerant exchanges heat from the plate heat exchanger 1 and then flows into the main liquid outlet pipeline 10 of the air-cooled heat exchange unit; when the system selects a refrigeration heat exchange unit, the refrigerant exchanges heat with the fluorine refrigerant in the plate evaporator 8 and enters a main liquid outlet pipeline 12 of the refrigeration heat exchange unit after being cooled; the main liquid outlet pipeline 10 of the air cooling heat exchange unit and the main liquid outlet pipeline 12 of the refrigeration heat exchange unit are respectively connected with a liquid supply reel 21 through a one-way valve and a pipeline, the radar load is connected through a hose on the liquid supply reel 21, cooled refrigerant ethylene glycol is conveyed to the radar load, the ethylene glycol returns to a liquid return reel 22 through a hose of the liquid return reel after heat exchange in the radar load, and then degassing is performed through a degasser 13. The electric heater 14 is selectively heated and then flows back to the input end of the liquid supply pump to complete the circulation.
In order to avoid the overlarge pressure in the pipeline, an electric butterfly valve branch 26 and an overflow valve branch 27 are arranged between the liquid supply reel 21 and the liquid return reel 22, when the pressure is overlarge, partial refrigerant is overflowed, and the pressure unbalance is adjusted through the communication of the electric butterfly valve. In order to avoid the shortage of the refrigerant in the pipeline, the liquid supplementing system supplements liquid, the refrigerant is drawn from the liquid supplementing tank through the liquid supplementing pump, and is sent to the heater 14 through the filter 17, the ball valve 18 and the check valve 19 in sequence, and then is sent to the liquid supplying pump 20 through the heater 14. The refrigerant overflowing the relief valve branch 27 is sent back to the tank 15.
The connection ends of the liquid supply reel 21 and the liquid return reel 22 and the load are respectively provided with a temperature sensor 28, a pressure sensor 29 and a flow sensor 30, the temperature sensor 31 is arranged outside the system, the control unit 32 exchanges data with the sensors and controls various electric butterfly valves, electromagnetic valves, pumps and refrigeration systems, and the refrigeration mode and the flow are selected and controlled according to a set program.
The control principle of the system is as follows: and starting the system, detecting the working time of the two liquid supply pumps, closing the liquid supply pump if one of the two liquid supply pumps exceeds the set time, and starting the other liquid supply pump. Detecting the ambient temperature, and starting electrical heating if the ambient temperature is lower than zero; detecting the temperature of the refrigerant, starting a group of heat dissipation units when the temperature of the refrigerant is lower than the set temperature, and adding one more heat dissipation unit when the temperature of the refrigerant exceeds the set temperature by 0.5 ℃; when the ambient temperature is lower than 15 ℃, the air-cooled heat exchange unit of the heat dissipation unit is started, and when the ambient temperature exceeds 15 ℃, the refrigeration heat exchange unit is switched.
Claims (8)
1. The secondary cooling unit for the radar load comprises a heat dissipation unit and a liquid supply circulating unit, wherein the liquid supply circulating unit comprises a liquid supply pump, a liquid supply reel and a liquid return reel, the liquid supply pump, the heat dissipation unit, the liquid supply reel, the load and the liquid return reel are connected in series to form heat exchange circulation, it is characterized in that the heat dissipation unit comprises an air cooling heat exchange unit and a refrigeration heat exchange unit, the air cooling heat exchange unit comprises a plate heat exchanger and a fan, the refrigeration heat exchange unit comprises a refrigeration loop formed by connecting a compressor, a condenser, a liquid storage tank, a drying filter, an expansion valve and a plate evaporator in series, the plate heat exchanger and the plate evaporator are connected in parallel and then are connected in series between the liquid supply pump and the liquid supply reel, the output end of the liquid supply pump is respectively connected with the input ends of the plate heat exchanger and the plate evaporator through an electric butterfly valve, and the output ends of the plate heat exchanger and the plate evaporator are connected with the liquid supply reel through a valve and a check valve.
2. The radar load secondary cooling unit as recited in claim 1, wherein the liquid supply circulation system is connected to a refrigerant processing unit, the refrigerant processing unit comprises a liquid supplementing system, a deaerator and a heater, the deaerator and the heater are connected in series between an input end of the liquid supply pump and the liquid return reel, the liquid supplementing system comprises a liquid supplementing tank, a liquid supplementing pump, a filter, a ball valve and a check valve, the liquid supplementing tank, the liquid supplementing pump, the filter, the ball valve and the check valve are connected in series in sequence, and the liquid supplementing system outputs the output to the heater.
3. The radar load aftercooler assembly of claim 1, comprising a plurality of sets of parallel heat dissipating units.
4. The radar load secondary cooling unit according to claim 1, comprising two parallel liquid supply pumps, wherein each liquid supply pump is provided with a butterfly valve at its input end and output end.
5. The radar load aftercooler assembly of claim 1, wherein a deaerator and a heater are connected in series between the liquid supply pump and the liquid return reel.
6. The radar load aftercooler assembly according to claim 1, wherein an expansion tank is connected to an input end of said liquid feed pump.
7. The radar load secondary cooling unit according to claim 1 or 2, wherein an electric butterfly valve and an overflow valve are installed in parallel between the liquid supply reel and the liquid return reel, and the overflow valve overflows to the liquid supplementing tank.
8. The radar load aftercooler assembly of claim 1, wherein the connection ends of the liquid supply reel and the liquid return reel with the load are respectively provided with a temperature sensor, a pressure sensor and a flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020885683.4U CN212409114U (en) | 2020-05-25 | 2020-05-25 | Secondary cooling unit for radar load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020885683.4U CN212409114U (en) | 2020-05-25 | 2020-05-25 | Secondary cooling unit for radar load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212409114U true CN212409114U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020885683.4U Active CN212409114U (en) | 2020-05-25 | 2020-05-25 | Secondary cooling unit for radar load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212409114U (en) |
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2020
- 2020-05-25 CN CN202020885683.4U patent/CN212409114U/en active Active
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