CN221005534U - Oilless fluorine pump cooling system and room calorimeter - Google Patents
Oilless fluorine pump cooling system and room calorimeter Download PDFInfo
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- CN221005534U CN221005534U CN202322723539.7U CN202322723539U CN221005534U CN 221005534 U CN221005534 U CN 221005534U CN 202322723539 U CN202322723539 U CN 202322723539U CN 221005534 U CN221005534 U CN 221005534U
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- 238000001816 cooling Methods 0.000 title claims abstract description 100
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 64
- 239000011737 fluorine Substances 0.000 title claims abstract description 64
- 238000005057 refrigeration Methods 0.000 claims abstract description 72
- 230000001105 regulatory effect Effects 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims abstract description 20
- 230000001276 controlling effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000007710 freezing Methods 0.000 abstract description 7
- 230000008014 freezing Effects 0.000 abstract description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 14
- 238000004781 supercooling Methods 0.000 description 11
- 230000005494 condensation Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 8
- 239000002826 coolant Substances 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an oil-free fluorine pump cooling system and a room calorimeter, which comprises: the primary refrigeration loop, the secondary refrigeration loop and the control component; the primary refrigeration loop comprises a cooling module, a subcooler and a condenser which are connected in sequence; the secondary refrigeration loop comprises a condenser, a liquid storage tank, a subcooler, an adjusting pump and an evaporator which are connected in sequence, and the secondary refrigeration loop is used for cooling the inner compartment and the outer compartment; the liquid storage tank is used for storing oil-free fluorine refrigerant; the control assembly comprises a first regulating valve and a second pressure sensor, the first regulating valve is arranged in the primary refrigerating circuit, the second pressure sensor is arranged in the secondary refrigerating circuit, and the flow of the primary refrigerating circuit is controlled through the first regulating valve and the second pressure sensor. The utility model has high accuracy of measurement results and no freezing risk.
Description
Technical Field
The utility model relates to the technical field of refrigeration systems, in particular to an oil-free fluorine pump cooling system and a room calorimeter.
Background
The room calorimeter is used for measuring the refrigerating capacity or heating capacity of the room air conditioner, and two sets or four sets of refrigerating systems are respectively arranged on the inner side and the outer side of the room calorimeter to meet the requirements of test working conditions. The cost of each set of refrigeration system is fixed, the more the number, the higher the cost of use of the room-type calorimeter, and the inability to test the demand.
The inner and outer compartments of conventional room calorimeters typically use water or glycol as a cooling medium to facilitate easy metering of the heat removal. However, the cooling medium has the defects of easy freezing at low temperature, high energy consumption, limited temperature test range, low heat exchange efficiency and poor measurement accuracy, and cannot meet the working condition requirements.
Disclosure of utility model
The utility model provides an oil-free fluorine pump cooling system and a room calorimeter, which have high accuracy of measurement results and no freezing risk.
The application provides an oil-free fluorine pump cooling system, which can be used for cooling an inner compartment and an outer compartment of a room calorimeter, and comprises the following components: the primary refrigeration loop, the secondary refrigeration loop and the control component;
the primary refrigeration loop comprises a cooling module, a subcooler and a condenser which are connected in sequence;
The secondary refrigeration loop comprises a condenser, a liquid storage tank, a subcooler, an adjusting pump and an evaporator which are connected in sequence, and the secondary refrigeration loop is used for cooling the inner compartment and the outer compartment; the liquid storage tank is used for storing oil-free fluorine refrigerant;
The control assembly comprises a first regulating valve and a second pressure sensor, the first regulating valve is arranged in the primary refrigerating circuit, the second pressure sensor is arranged in the secondary refrigerating circuit, and the flow of the primary refrigerating circuit is controlled through the first regulating valve and the second pressure sensor.
In some embodiments, a first pressure sensor is further disposed in the primary refrigeration circuit, the first pressure sensor being configured to detect a pressure of the primary refrigeration circuit; in the secondary refrigeration loop, a temperature sensor is arranged at the inlet of a calorimeter of the inner compartment or the outer compartment, and the highest pressure value of the first pressure sensor is adjusted according to the temperature value of the temperature sensor.
In some embodiments, the opening and closing degree of the first regulating valve is controlled according to the pressure value of the second pressure sensor so as to control the flow of the primary refrigeration circuit.
In some embodiments, the first regulating valve is disposed between the cooling module and the subcooler, the first regulating valve is connected to the second pressure sensor, and the first regulating valve is used for regulating the flow of the primary refrigeration circuit refrigerant according to the second pressure sensor.
In some embodiments, the system further comprises a second regulating pump, the second regulating pump being disposed in the secondary refrigeration circuit; the second regulating pump is used for controlling the flow of the secondary refrigerating circuit according to the temperature and humidity frequency conversion of the inner compartment and the outer compartment.
In some embodiments, a third valve and a fourth valve are further arranged, wherein the third valve is arranged at the position that the secondary refrigeration loop enters the room calorimeter; the fourth valve is disposed at a location where the secondary refrigeration circuit exits the room calorimeter.
In some embodiments, the heat exchange capacity of the subcooler is less than the control cooling capacity of the first regulating valve.
The application also provides a room calorimeter comprising an oil-free fluorine pump cooling system as described in any one of the above.
The application provides an oilless fluorine pump cooling system and a room calorimeter, wherein a primary refrigerating loop and a secondary refrigerating loop are used for cooling an inner compartment and an outer compartment, and a control component is used for controlling the flow of fluorine refrigerating fluid in the cooling process, so that the flow of the primary refrigerating loop or the secondary refrigerating loop is regulated according to working condition requirements or the temperatures of the inner compartment and the outer compartment, and the cooling requirements in the room calorimeter are met. Meanwhile, in the application, the fluorine coolant is adopted for cooling in the refrigeration loop, and the phase change heat exchange is adopted for cooling the room calorimeter, so that the freezing of the cooling medium is prevented, and the measurement accuracy is improved.
Drawings
Fig. 1 is a schematic structural diagram of an oil-free fluorine pump cooling system according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a primary cooling circuit of a room calorimeter according to an embodiment of the utility model.
In the figure: 1. a condenser; 2. a subcooler; 3. a liquid storage tank; 4. a first regulating valve; 5. a second pressure sensor; 6. a second regulating pump; 7. a first pressure sensor; 8. a third valve; 9. a fourth valve; 10. a first compressor; 11. a second compressor; 13. a cooling module condenser; 14. a switching assembly; 15. a fluorine tank; 16. an inner compartment cooler; 17. an outer compartment cooler; 18. an inner jacket evaporator; 19. an outer jacket evaporator; 20. a fluorine tank regulating valve; 21. a condensation regulating valve; 22. a temperature sensor; 23. a cooling module evaporator.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings.
Fig. 1 schematically shows an oil-free fluorine pump cooling system of the present utility model, which can be applied to cooling of an inner compartment and an outer compartment of a room calorimeter. As shown in fig. 1, the system includes: the primary refrigeration loop, the secondary refrigeration loop and the control component; the primary refrigeration loop comprises a cooling module, a condenser 1 and a subcooler 2 which are connected in sequence; the secondary refrigeration loop comprises a condenser 1, a liquid storage tank 3, a subcooler 2 and an evaporator which are connected in sequence, and the secondary refrigeration loop is used for cooling the inner compartment and the outer compartment; the liquid storage tank 3 is used for storing fluorine refrigerant; the control assembly comprises a first regulating valve 4 and a second pressure sensor 5, wherein the first regulating valve 4 is arranged in the primary refrigerating circuit, the second pressure sensor 5 is arranged in the secondary refrigerating circuit, and the flow of the primary refrigerating circuit is controlled through the first regulating valve 4 and the second pressure sensor 5.
Balanced ambient interatrial calorimeters typically include four rooms, with the suites and compartments requiring control to maintain the same temperature. Meanwhile, the heat input and the heat removal or the cooling of the compartments are required to be measured, and the temperature of the suite is required to be maintained to be the same as that of the compartments, so that heat leakage is reduced, and the measurement accuracy is improved. The test working conditions are gradually increased, and water or glycol is adopted as a cooling medium, so that the test requirements cannot be met. Therefore, in the application, the inner compartment and the outer compartment adopt oil-free cooling loops, namely, the cooling module in the primary cooling loop is used as a cold source to control the pressure of the fluorine pump in the secondary cooling loop, and the fluorine pump supplies cold for the room type calorimeter through phase change heat exchange, so that the problem that water or glycol is frozen as a cooling medium is avoided, and meanwhile, the measurement accuracy is improved.
The four rooms include an inner suite, an inner compartment, an outer suite, and an outer compartment. The secondary refrigeration circuit is used for cooling the inner compartment and the outer compartment. The inner compartment is provided with an inner compartment cooling module evaporator 23 and the outer compartment is provided with an outer compartment cooling module evaporator 23 to cool the inner and outer compartments. The cooling module in the primary refrigeration loop is provided with an outer sleeve evaporator 19 and an inner sleeve evaporator 18, so that the refrigerant is converted from a liquid state to a gas state, and heat in the air is absorbed, and the refrigeration effect between the outer sleeve and the inner sleeve is realized.
When the oil-free fluorine pump cooling system is applied to cooling of an inner compartment, the liquid supply end of the cooling module is the point A in the figure 1, and is connected with the outlet of the condenser 13 of the cooling module, namely the point C in the figure 2; the air intake end of the cooling module is indicated as point B in fig. 1, and is connected to the air inlet of the fluorine tank 15, which is indicated as point D in fig. 2. Similarly, when the oil-free fluorine pump cooling system is applied to the external compartment for cooling, the liquid supply end of the cooling module is the point A in fig. 1, connected with the outlet of the condenser 13 of the cooling module is the point E in fig. 2, the air suction end of the cooling module is the point B in fig. 1, connected with the inlet of the switching component 14 of the cooling module is the point F in fig. 2, and the air suction opening to the fluorine tank or the first compressor 10 can be selected.
In the secondary cooling loop, the second regulating pump 6 is a fluorine pump, and the refrigerant is not frozen at low temperature and does not generate freezing risk by adopting the fluorine pump for supplying liquid. The second regulating pump 6 is used for controlling the flow of the secondary refrigeration loop according to the temperature and humidity frequency conversion of the inner compartment and the outer compartment. The phase change heat exchange provides cold for the inner compartment and the outer compartment of the room type calorimeter, so that the problem of freezing when water or glycol is used as a cold providing medium is avoided, and meanwhile, the measurement accuracy is improved. In the traditional working process of adopting ethylene glycol as a refrigerant, the concentration of the ethylene glycol needs to be measured, the measurement step of a room calorimeter is increased, and the measurement accuracy is reduced. And fluorine is adopted as the refrigerant, so that the steps are not needed, the measuring steps are saved, and the measuring accuracy is improved. More, with this refrigerant, there is no oil circulation, and there is no influence of oil content on measurement accuracy, compared with the conventional compressor cooling.
The cooling module of the primary refrigeration loop can be a conventional compression condensing unit or a fluorine tank circulating system, for example, the cooling module is provided with a compressor and a fluorine tank, and cooling is performed through the fluorine tank and the compressor. In the present application, as shown in fig. 2, the cooling module in the primary refrigeration circuit is provided with a compressor, a cooling module condenser 13, an evaporator, a fluorine tank 15, and a switching unit 14. The number of compressors is at least 1, and the inner and outer compartments are cooled by the compressors. In the primary refrigeration circuit, a compressor is connected in sequence with a condenser 13, an evaporator, and a fluorine tank 15 of the cooling module, and a fluorine refrigerant circulates in the circuit so as to satisfy the cooling demand of the room calorimeter.
More, two compressors may be provided in the cooling module. The first compressor 10 is connected to the cooling module condenser 13, the evaporator, and the fluorine tank 15 in this order to constitute a first cycle. The second compressor 11, the cooling module condenser 13, the evaporator, and the fluorine tank 15 are connected in this order to constitute a second cycle. The first compressor 10 is provided with a medium temperature mode and a low temperature mode, the temperature of the medium temperature mode being higher than that of the low temperature mode. Under normal conditions, the first compressor 10 and the second compressor 11 are in medium temperature mode, so as to reduce energy consumption. When the inner compartment or the outer compartment requires a lower temperature and the medium temperature mode cannot be realized, the first compressor 10 is switched to the low temperature mode, so that the first circulation temperature is lower, the testing working condition requirements of the outdoor, namely the outer jacket and the outer compartment are ensured, and the working condition range of the room type calorimeter is enlarged.
In the cooling module, a switching assembly 14 is further provided, and the operation mode of the first compressor 10 is switched by the switching assembly 14. The switching assembly 14 is disposed between the inlet of the first compressor 10 and the second outlet of the evaporator. The switching component 14 adopts a switching valve, one end of the switching valve is connected with a second outlet of the inter-jacket evaporator 19 and a second outlet of the outer compartment cooler 17, the other end of the switching valve is connected with the first compressor 10, and the second outlet of the evaporator is switched between being communicated with the first compressor 10 and being communicated with the fluorine tank 15 through the switching valve. When the working conditions required by the outer compartments and the outer sleeves are not different from those of the inner compartments and the inner sleeves, the same evaporation temperature can meet the cooling requirements of 4 rooms. At the moment, the switching valve is closed, the fluorine tank 15 is connected between the outer compartment and the outer jacket, the evaporator 19 between the outer jacket, the cooler 17 between the outer compartment, the cooler 16 between the inner compartment and the evaporator 18 between the inner jacket are in the same state, and the working condition requirements of 4 rooms can be met through the second compressor 11 at the same time, so that the energy-saving and environment-friendly effects are achieved.
When the outdoor required temperature is low, that is, the temperature of the outer compartment or the outer jacket is lower than the threshold value, the low evaporation temperature is required for the outer compartment cooler 17 and the outer jacket evaporator 19, the low evaporation temperature is not required for the inner compartment cooler 16 and the inner jacket evaporator 18, the switching valve is opened, the inlet of the first compressor 10 is connected with the outer compartment and the outer jacket, and the first compressor 10 is in a low temperature mode for refrigeration. The outer compartment, the outer compartment and the inner compartment are at different evaporation temperatures, and the refrigeration efficiency of the second compressor 11 is also not affected by the first compressor 10.
In the cooling module, a fluorine tank regulating valve 20 is arranged between the inlet of the condenser 13 of the cooling module and the fluorine tank 15, and the fluorine tank regulating valve 20 is used for regulating the pressure of the fluorine tank 15; a condensation regulating valve 21 is provided between the outlet of the cooling module condenser 13 and the inlet of the fluorine tank 15, and the condensation regulating valve 21 is used to regulate the pressure of the cooling module condenser 13.
In the secondary refrigeration circuit, the condenser 1 comprises a first condensation inlet, a first condensation outlet, a second condensation inlet and a second condensation outlet, and the subcooler 2 comprises a first subcooling inlet, a first subcooling outlet, a second subcooling inlet and a second subcooling outlet. In the primary refrigeration loop, the fluorine refrigerant sequentially passes through the cooling module outlet, the first supercooling inlet, the supercooler 2, the first supercooling outlet, the first condensing inlet, the condenser 1, the first condensing outlet and the cooling module inlet. In the secondary refrigeration loop, the fluorine refrigerant sequentially passes through the outlet of the liquid storage tank 3, the second supercooling inlet, the supercooler 2, the second supercooling outlet, the evaporator inlet, the evaporator outlet, the second condensing inlet, the condenser 1, the second condensing outlet and the inlet of the liquid storage tank 3. The primary refrigeration circuit refrigerant passes through the chiller 2 and then through the condenser 1.
Through the selection of the heat exchange area of the subcooler, the design heat exchange capacity of the subcooler 2 is smaller than the cooling capacity controlled by the first regulating valve 4, the condenser 1 is ensured to exchange heat by utilizing the residual cooling capacity of the refrigerant at the outlet of the subcooler 2, and the supercooling degree and the pressure of the liquid-supply refrigerant in the secondary refrigeration loop are controlled simultaneously. The heat exchange capacity of the subcooler 2 is not more than the cooling capacity controlled by the first regulating valve 4. For example, when the first regulating valve 4 is adjusted to 30kW, the heat exchange capacity of the subcooler 2 may be 3kW or 5kW, so as to ensure that the subcooling degree and the pressure are controlled simultaneously.
The control assembly further comprises a first regulating valve 4, by means of which first regulating valve 4 the flow of fluorine refrigerant in the primary refrigeration circuit is regulated. The first regulating valve 4 is an electronic expansion valve, and is arranged between the cooling module and the first supercooling inlet, and controls the flow entering the supercooler 2 through the first supercooling inlet.
The control assembly is further provided with a first pressure sensor 7, a second pressure sensor 5 and a temperature sensor 22, wherein the first pressure sensor 7 is arranged at the air suction end of the cooling module. In the present application, a first pressure sensor 7 is specifically disposed between the first condensation outlet and the cooling module, for detecting the line pressure in the primary refrigeration circuit. When the application is applied to the inner compartment, the first pressure sensor 7 detects the pressure of the fluorine tank in the cooling module; when the application is applied to the outer compartment, the first pressure sensor 7 may be the pressure of the fluorine tank in the cooling module or the suction pressure of the first compressor 10. In the secondary refrigeration circuit, a temperature sensor 22 is provided at the calorimeter supply inlet of the inner or outer compartment for detecting the temperature of the liquid before the secondary refrigeration circuit supply enters the calorimeter. The maximum pressure value of the first pressure sensor 7 is determined by the temperature sensor 22 to ensure that the evaporating temperature of the primary refrigeration circuit is equal to or lower than the liquid supply temperature of the secondary refrigeration circuit and to ensure the supercooling degree of the liquid supply of the secondary refrigeration circuit. The temperature sensor detects the temperature of the liquid supply refrigerant of the inner compartment or the outer compartment, and the highest pressure value of the first pressure sensor 7 is adjusted according to the temperature value. In the primary refrigeration circuit, the condenser of the cooling module is used for cooling. When the temperature sensor 22 detects that the temperature value is higher than the threshold value, the evaporation temperature is reduced, the pressure of the fluorine tank of the cooling module or the suction pressure of the first compressor 10 is reduced, and the highest pressure value detected by the first pressure sensor 7 is reduced, so that the liquid supply of the inner compartment and the outer compartment is ensured to be in a set supercooling state.
The second pressure sensor 5 may be disposed on the liquid storage tank 3 or on a pipeline of the secondary refrigeration circuit, and is used for detecting the pipeline pressure in the secondary refrigeration circuit, so as to obtain the saturation temperature of the fluorine refrigeration liquid in the secondary refrigeration circuit. The first regulating valve 4 is connected with the second pressure sensor 5, and the first regulating valve 4 is used for regulating the flow of the primary refrigeration loop fluorine refrigerant according to the second pressure sensor 5. That is, the first regulating valve 4 is controlled by the second pressure sensor 5, and the supercooling degree and the condensing pressure are simultaneously controlled in the secondary refrigerating circuit by the cooperation of the second pressure sensor 5 and the first regulating valve 4. The first regulating valve 4 adopts an electronic expansion valve, and controls the flow of the primary refrigeration loop through the opening and closing degree of the electronic expansion valve, thereby affecting the saturation temperature in the secondary refrigeration loop and regulating the heat exchange temperature difference of the inner compartment and the outer compartment. The opening and closing degree of the first regulating valve 4 is positively correlated with the pressure value detected by the second pressure sensor 5, the larger the opening and closing degree of the first regulating valve 4 is, the more the primary refrigerating circuit flow is, the more the provided refrigerating capacity is increased, the heat exchange capacity is increased, the pressure in the secondary refrigerating circuit is reduced, and the pressure value detected by the second pressure sensor 5 is also reduced.
Further, a third valve 8, a fourth valve 9 are provided, said third valve 8 being arranged at the point where said secondary refrigeration circuit enters the room calorimeter, in the present application between the second supercooling outlet and the room calorimeter inlet. When the secondary refrigeration circuit is not needed by the inner compartment and the outer compartment, the third valve 8 can be closed, so that the fluorine refrigerating fluid in the secondary refrigeration circuit can be prevented from flowing into the room calorimeter to interfere with measurement due to natural forward direction. The fourth valve 9 is arranged at the position of the secondary refrigerating circuit leaving the room calorimeter, and is arranged at the outlets of the inner compartment cooler 16 and the outer compartment cooler 17 in the application, in the embodiment, the fourth valve 9 is a one-way valve, so that the fluorine refrigerating fluid in the secondary refrigerating circuit is prevented from flowing into the room calorimeter in a natural reverse direction to disturb measurement when the secondary refrigerating circuit is not used in the inner compartment and the outer compartment.
Based on the same inventive concept, the present application also provides a room calorimeter comprising an oil-free fluorine pump cooling system of the room calorimeter as above for cooling the inner and outer compartments.
The application also provides an oilless fluorine pump cooling system and a room calorimeter, wherein the primary refrigerating loop and the secondary refrigerating loop are used for cooling the inner compartment and the outer compartment, and the control component is used for controlling the flow of fluorine refrigerating fluid in the cooling process, so that the flow of the primary refrigerating loop or the secondary refrigerating loop is adjusted according to the working condition requirement or the temperatures of the inner compartment and the outer compartment, and the cooling requirement in the room calorimeter is met. Meanwhile, in the application, the fluorine coolant is adopted for cooling in the refrigeration loop, and the phase change heat exchange is adopted for cooling the room calorimeter, so that the freezing of the cooling medium is prevented, and the measurement accuracy is improved.
The foregoing are merely some embodiments of the utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.
Claims (8)
1. An oil-free fluorine pump cooling system for cooling an inner compartment and an outer compartment of a room calorimeter, comprising: the primary refrigeration loop, the secondary refrigeration loop and the control component;
the primary refrigeration loop comprises a cooling module, a subcooler and a condenser which are connected in sequence;
The secondary refrigeration loop comprises a condenser, a liquid storage tank, a subcooler, an adjusting pump and an evaporator which are connected in sequence, and the secondary refrigeration loop is used for cooling the inner compartment and the outer compartment; the liquid storage tank is used for storing oil-free fluorine refrigerant;
The control assembly comprises a first regulating valve and a second pressure sensor, the first regulating valve is arranged in the primary refrigerating circuit, the second pressure sensor is arranged in the secondary refrigerating circuit, and the flow of the primary refrigerating circuit is controlled through the first regulating valve and the second pressure sensor.
2. An oil-free fluorine pump cooling system according to claim 1, wherein a first pressure sensor is further provided in the primary refrigeration circuit, and the first pressure sensor is used for detecting the pressure of the primary refrigeration circuit; in the secondary refrigeration loop, a temperature sensor is arranged at the inlet of a calorimeter of the inner compartment or the outer compartment, and the highest pressure value of the first pressure sensor is adjusted according to the target value of the temperature sensor.
3. An oil-free fluorine pump cooling system according to claim 1, wherein the opening and closing degree of the first regulating valve is controlled according to the pressure value of the second pressure sensor so as to control the flow rate of the primary refrigeration circuit.
4. An oil-free fluorine pump cooling system according to claim 3, wherein the first regulating valve is disposed between the cooling module and the subcooler, the first regulating valve is connected to the second pressure sensor, and the first regulating valve is configured to regulate the flow of the primary refrigeration circuit refrigerant according to the second pressure sensor.
5. An oil free fluorine pump cooling system as claimed in claim 3 further comprising a second regulating pump disposed in the secondary refrigeration circuit; the second regulating pump is used for controlling the flow of the secondary refrigerating circuit according to the temperature and humidity frequency conversion of the inner compartment and the outer compartment.
6. An oil-free fluorine pump cooling system according to claim 2, further comprising a third valve and a fourth valve, wherein the third valve is arranged at a position where the secondary refrigeration loop enters a room calorimeter; the fourth valve is disposed at a location where the secondary refrigeration circuit exits the room calorimeter.
7. An oil-free fluorine pump cooling system according to claim 1 wherein the heat exchange capacity of the subcooler is less than the cooling capacity controlled by the first regulating valve.
8. A room calorimeter comprising an oil-free fluorine pump cooling system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322723539.7U CN221005534U (en) | 2023-10-10 | 2023-10-10 | Oilless fluorine pump cooling system and room calorimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322723539.7U CN221005534U (en) | 2023-10-10 | 2023-10-10 | Oilless fluorine pump cooling system and room calorimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221005534U true CN221005534U (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322723539.7U Active CN221005534U (en) | 2023-10-10 | 2023-10-10 | Oilless fluorine pump cooling system and room calorimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221005534U (en) |
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2023
- 2023-10-10 CN CN202322723539.7U patent/CN221005534U/en active Active
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