CN218442845U - Cascade refrigerating system and refrigerating equipment - Google Patents
Cascade refrigerating system and refrigerating equipment Download PDFInfo
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- CN218442845U CN218442845U CN202222974043.2U CN202222974043U CN218442845U CN 218442845 U CN218442845 U CN 218442845U CN 202222974043 U CN202222974043 U CN 202222974043U CN 218442845 U CN218442845 U CN 218442845U
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Abstract
The application relates to the technical field of refrigeration equipment, in particular to a cascade refrigeration system and refrigeration equipment. The cascade refrigeration system comprises a secondary refrigeration circuit and a refrigerant regulating branch. The secondary refrigeration loop comprises a secondary compressor, an intermediate heat exchanger and an evaporator which are connected in series, the refrigerant adjusting branch comprises a storage tank for storing refrigerant and an air outlet pipe section, a first branch interface is arranged on a pipeline between an inlet of the secondary compressor and an outlet of the evaporator, two ends of the air outlet pipe section are respectively communicated with the storage tank and the first branch interface, and the air outlet pipe section is provided with a refrigerant adjusting valve; when the cascade refrigeration system operates under a high-load working condition, the refrigerant regulating valve is opened to supplement the refrigerant to the secondary refrigeration loop, so that the return air temperature and the exhaust air temperature of the secondary compressor are cooled by the supplemented refrigerant, and the cascade refrigeration system can smoothly operate under the high-load working condition.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a cascade refrigeration system and refrigeration equipment.
Background
The cascade refrigeration system is usually used for chip test equipment, and the existing chip test equipment mainly adopts a cold-hot confrontation mode of the cascade refrigeration system and electric heating to provide a test environment condition of-55 ℃ to 150 ℃; however, the refrigerating capacity of the existing cascade refrigerating system can not be adjusted under different testing working conditions, particularly high-load working conditions.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cascade refrigerating system and refrigeration plant to can adjust the refrigerating output in the second grade refrigeration circuit.
The utility model provides an overlapping formula refrigerating system, include:
the secondary refrigeration loop comprises a secondary compressor, an intermediate heat exchanger and an evaporator which are sequentially connected in series;
the refrigerant regulating branch comprises a storage tank for storing refrigerant and an air outlet pipe section;
a first branch connector is arranged on a pipeline between an inlet of the secondary compressor and the evaporator, one end of the air outlet pipe section is communicated with the first branch connector, and the other end of the air outlet pipe section is communicated with the storage tank; and a refrigerant regulating valve is arranged on the air outlet pipe section.
Further, the refrigerant regulating branch also comprises an air inlet pipe section;
a second branch connector is arranged on a pipeline between the outlet of the secondary compressor and the intermediate heat exchanger, one end of the air inlet pipe section is communicated with the second branch connector, and the other end of the air inlet pipe section is communicated with the storage tank; and an unloading valve is arranged on the air inlet pipe section.
Further, the secondary refrigeration circuit further comprises a secondary expansion valve, and the secondary expansion valve is connected between the intermediate heat exchanger and the evaporator in series.
Further, the secondary refrigeration circuit further comprises a double-pipe heat exchanger;
the double-pipe heat exchanger comprises a first side and a second side which can exchange heat, the first side of the double-pipe heat exchanger is connected between the inlet of the evaporator and the secondary expansion valve in series, and the second side of the double-pipe heat exchanger is connected between the outlet of the evaporator and the secondary compressor in series.
Further, the cascade refrigeration system further comprises a shunt branch;
a third branch interface is arranged on a pipeline between the inlet of the secondary expansion valve and the intermediate heat exchanger, and a fourth branch interface is arranged on a pipeline between the outlet of the evaporator and the inlet of the secondary compressor;
two ends of the shunting branch are respectively communicated with the third branch interface and the fourth branch interface;
and an air return cooling electromagnetic valve is arranged on the flow dividing branch.
Further, the fourth branch interface is located between the outlet of the evaporator and the double-pipe heat exchanger;
alternatively, the fourth branch connection is located between the double pipe heat exchanger and an inlet of the secondary compressor.
Further, the first branch connection is located in a line between the fourth branch connection and a secondary compressor inlet.
Furthermore, still be provided with the capillary on the reposition of redundant personnel branch road, the capillary with return-air cooling solenoid valve series connection.
Furthermore, the cascade refrigeration system also comprises a primary refrigeration loop, and the primary refrigeration loop comprises a primary compressor, a heat exchanger, a primary expansion valve and the intermediate heat exchanger which are sequentially connected in series.
The utility model also provides a refrigeration plant, including above-mentioned arbitrary cascade refrigerating system.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a cascade refrigerating system includes second grade refrigeration circuit and refrigerant regulation branch road. The secondary refrigeration loop comprises a secondary compressor, an intermediate heat exchanger and an evaporator, wherein the secondary compressor, the intermediate heat exchanger and the evaporator are sequentially connected in series through pipelines to form a secondary refrigeration loop for the circulation of refrigerant. The refrigerant adjusting branch comprises a storage tank for storing refrigerant and an air outlet pipe section, a first branch connector is arranged on a pipeline between an inlet of the secondary compressor and an outlet of the evaporator, one end of the air outlet pipe section is communicated with the storage tank, the other end of the air outlet pipe section is communicated with the first branch connector, and a refrigerant adjusting valve for opening or cutting off the air outlet pipe section is arranged on the air outlet pipe section.
When the cascade refrigeration system operates under a high-load working condition and the temperature of the refrigerant flowing into the evaporator, namely the temperature of the secondary liquid outlet of the refrigerant after passing through the secondary expansion valve, cannot be reduced to a preset temperature, the refrigerant regulating valve can be opened to enable the refrigerant in the storage tank to flow out to the secondary refrigeration loop so as to supplement the refrigerant to the secondary refrigeration loop; the supplemented refrigerant can flow to the secondary compressor after being converged with the refrigerant from the evaporator, so that the secondary return air temperature of the secondary compressor is reduced through the supplemented refrigerant, the exhaust temperature of the secondary compressor is further reduced, and the cascade refrigeration system can smoothly run under a high-load working condition.
The utility model also provides a refrigeration plant, include overlapping formula refrigerating system, therefore refrigeration plant also has overlapping formula refrigerating system's beneficial effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a cascade refrigeration system according to an embodiment of the present invention.
Reference numerals:
1-a primary compressor, 2-a heat exchanger, 3-a primary expansion valve, 4-an intermediate heat exchanger, 5-a secondary compressor, 6-a secondary expansion valve, 7-a double-pipe heat exchanger, 8-an evaporator, 9-a storage tank, 10-an unloading valve, 11-a refrigerant regulating valve, 12-an air return cooling electromagnetic valve and 13-a capillary tube.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
A cascade refrigeration system and refrigeration appliance according to some embodiments of the present application are described below with reference to fig. 1.
The present application provides a cascade refrigeration system, as shown in fig. 1, the cascade refrigeration system comprises a primary refrigeration loop and a secondary refrigeration loop that are in heat exchange connection through an intermediate heat exchanger 4.
Specifically, the primary refrigeration loop comprises a primary compressor 1, a heat exchanger 2, a primary expansion valve 3 and an intermediate heat exchanger 4, wherein the primary compressor 1, the heat exchanger 2, the primary expansion valve 3 and the intermediate heat exchanger 4 are sequentially connected in series through pipelines to form a primary refrigeration loop for the circulation of refrigerant. The secondary refrigeration loop comprises a secondary compressor 5, an intermediate heat exchanger 4, a secondary expansion valve 6 and an evaporator 8, wherein the secondary compressor 5, the intermediate heat exchanger 4, the secondary expansion valve 6 and the evaporator 8 are sequentially connected in series through pipelines to form a secondary refrigeration loop in which a refrigerant can circulate.
The primary refrigeration loop and the secondary refrigeration loop comprise a shared intermediate heat exchanger 4, the intermediate heat exchanger 4 comprises a first heat exchange side and a second heat exchange side, fluid can circulate and exchange heat, and the first heat exchange side is connected into the primary refrigeration loop so as to circulate a refrigerant in the primary refrigeration loop; the second heat exchange side is connected into the secondary refrigeration loop for the circulation of the refrigerant in the secondary refrigeration loop, so that the refrigerant in the primary refrigeration loop and the refrigerant in the secondary refrigeration loop exchange heat at the intermediate heat exchanger 4.
In the primary refrigeration loop, the intermediate heat exchanger 4 is used as an evaporator 8, and a refrigerant in the primary refrigeration loop can be heated and vaporized after flowing through intermediate heat exchange; in the secondary refrigeration circuit, the intermediate heat exchanger 4 serves as a condenser, and the refrigerant in the secondary refrigeration circuit can be cooled and condensed after flowing through the intermediate heat exchanger 4.
The primary refrigeration circuit and the secondary refrigeration circuit are further described.
In the first-stage refrigeration loop, as for the refrigerant in the first-stage refrigeration loop, the first-stage compressor 1 can compress the gaseous refrigerant flowing through the first-stage refrigeration loop, so that the temperature of the refrigerant is raised to a preset first-stage exhaust temperature; after passing through the primary compressor 1, the refrigerant flows to the heat exchanger 2, and exchanges heat with an external water source connected to the heat exchanger 2 at the heat exchanger 2, so that the external water source is heated by the refrigerant, and meanwhile, the refrigerant with higher temperature is condensed and cooled to lower temperature; the refrigerant after passing through the heat exchanger 2 continuously flows backwards to the first-stage expansion valve 3, is throttled by the first-stage expansion valve 3 to be further cooled to a lower temperature, then enters the intermediate heat exchanger 4 to exchange heat with the refrigerant in the second-stage refrigeration loop so as to provide cold energy for the refrigerant in the second-stage refrigeration loop, and meanwhile, the refrigerant in the first-stage refrigeration loop is heated and vaporized to a preset first-stage return air temperature and then returns to the first-stage compressor 1 again so as to perform the next cycle.
In the secondary refrigeration circuit, the secondary compressor 5 can compress the refrigerant flowing through the secondary refrigeration circuit, so that the refrigerant is heated to a preset secondary exhaust temperature; the refrigerant after passing through the secondary compressor 5 flows to the intermediate heat exchanger 4, exchanges heat with the refrigerant in the primary refrigeration loop at the intermediate heat exchanger 4, and is cooled by the refrigerant in the primary refrigeration loop, so that the refrigerant in the secondary refrigeration loop is condensed and cooled to a lower temperature; in the secondary refrigeration loop, the refrigerant condensed and cooled by the intermediate heat exchanger 4 continuously flows backwards to the secondary expansion valve 6, and is throttled by the secondary expansion valve 6, so that the refrigerant is cooled to a preset secondary liquid outlet temperature and then enters the evaporator 8 to provide sufficient cold energy for the evaporator 8; after passing through the evaporator 8, the refrigerant is heated, returning to the secondary compressor 5 at a predetermined secondary return air temperature for the next cycle.
The cascade refrigeration system further comprises a refrigerant regulating branch circuit arranged in the secondary refrigeration loop, so that the refrigerant in the secondary refrigeration loop is recycled and temporarily stored through the refrigerant regulating branch circuit; or the refrigerant in the secondary refrigeration loop is supplemented through the refrigerant adjusting branch.
Specifically, the refrigerant regulating branch comprises a storage tank 9 for storing the refrigerant and an air outlet pipe section, a first branch connector is arranged on a pipeline between an inlet of the secondary compressor 5 and an outlet of the evaporator 8, namely an air return pipeline, an air outlet is formed in the storage tank 9, one end of the air outlet pipe section is communicated with the storage tank 9 through the air outlet of the storage tank 9, the other end of the air outlet pipe section is communicated with the first branch connector, and a refrigerant regulating valve 11 is arranged on the air outlet pipe section to open or cut off the air outlet pipe section through the refrigerant regulating valve 11.
When the cascade refrigeration system operates under a high-load working condition and the temperature of the refrigerant flowing into the evaporator 8, namely the temperature of the secondary liquid outlet of the refrigerant after passing through the secondary expansion valve 6, cannot be reduced to a preset temperature, the refrigerant regulating valve 11 can be opened to enable the refrigerant in the storage tank 9 to flow out to the secondary refrigeration loop so as to supplement the refrigerant to the secondary refrigeration loop; the supplemented refrigerant can flow to the secondary compressor 5 after being merged with the refrigerant from the evaporator 8, so that the secondary return air temperature of the secondary compressor 5 is reduced through the supplemented refrigerant, the exhaust temperature of the secondary compressor 5 and the secondary outlet liquid temperature after passing through the secondary expansion valve 6 are further reduced, and the cascade refrigeration system can smoothly run under the high-load working condition.
In this embodiment, it is preferable that the reservoir 9 is further formed with an air inlet, and in particular, the air inlet and the air outlet of the reservoir 9 are respectively located at both ends of the reservoir 9; the refrigerant adjusting branch circuit further comprises an air inlet pipe section, a second branch circuit interface is arranged on a pipeline between the outlet of the secondary compressor 5 and the intermediate heat exchanger 4, one end of the air inlet pipe section is communicated with the second branch circuit interface, the other end of the air inlet pipe section is communicated with the storage tank 9 through an air inlet of the storage tank 9, an unloading valve 10 is arranged on the storage tank 9, and the air inlet pipe section can be opened or cut off through the unloading valve 10.
When the cascade refrigeration system is switched from a high-load working condition to a low-load working condition to operate, when the temperature of the refrigerant passing through the secondary expansion valve 6, namely the temperature of the secondary liquid outlet is lower than a preset temperature, the refrigerant regulating valve 11 can be closed, the unloading valve 10 can be opened, so that part of the refrigerant compressed by the secondary compressor 5 flows to the intermediate heat exchanger 4 for heat exchange, and part of the refrigerant flows into the storage tank 9 through the air inlet pipe section, so that the refrigerant in the secondary refrigeration loop is recovered through the storage tank 9, the amount of the refrigerant circulating in the secondary refrigeration loop is reduced, the temperature of the secondary liquid outlet is increased, and the cascade refrigeration system can smoothly operate under the low-load working condition. Based on the fact that the pressure of the refrigerant at the outlet of the secondary compressor 5 is higher than the pressure of the refrigerant at the inlet of the secondary compressor 5 when the refrigerant flows through the secondary compressor 5, the pressure value in the storage tank 9 is set between the pressure at the outlet of the secondary compressor 5 and the pressure at the inlet of the secondary compressor 5, and therefore after the refrigerant regulating valve 11 is opened, the refrigerant in the storage tank 9 automatically enters the secondary refrigeration circuit to supplement the amount of the refrigerant.
Therefore, the refrigerant adjusting branch is arranged in the secondary refrigeration loop, the amount of the refrigerant circulating in the secondary refrigeration loop can be adjusted, and further the secondary air return temperature, the secondary exhaust temperature and the secondary liquid outlet temperature are adjusted, so that the cascade refrigeration system can adapt to different working condition loads.
It should be noted that, by the unloading valve 10, not only the air inlet pipe section can be opened to recover the refrigerant in the secondary refrigeration circuit, but also the pressure unloading protection can be performed on the secondary refrigeration circuit.
In an embodiment of the present application, preferably, the secondary refrigeration circuit further includes a double pipe heat exchanger 7, the double pipe heat exchanger 7 includes a first side and a second side through which the fluid can flow and perform heat exchange, the first side of the double pipe heat exchanger 7 is connected in series with the inlet of the evaporator 8, that is, the first side of the double pipe heat exchanger 7 is connected in series between the outlet of the secondary expansion valve 6 and the inlet of the evaporator 8, so that the refrigerant passing through the secondary expansion valve 6 flows into the evaporator 8 through the first side of the double pipe heat exchanger 7; the second side of the double pipe heat exchanger 7 is connected in series with the outlet of the evaporator 8, i.e. the second side of the double pipe heat exchanger 7 is connected in series between the outlet of the evaporator 8 and the inlet of the secondary compressor 5, so that the refrigerant flowing out of the evaporator 8 flows to the secondary compressor 5 through the second side of the double pipe heat exchanger 7.
Therefore, the refrigerant having a lower temperature flowing from the two-stage expansion valve 6 to the evaporator 8 enters the shell-and-tube evaporator 8 first, and exchanges heat with the refrigerant having a higher temperature flowing from the evaporator 8 to lower the temperature of the refrigerant flowing from the evaporator 8 to the two-stage compressor 5, thereby lowering the two-stage return air temperature and the two-stage discharge air temperature.
It should be noted that the first branch port may be located on a pipeline behind the double pipe heat exchanger 7, or may be located on a pipeline between the double pipe heat exchanger 7 and the outlet of the evaporator 8. Preferably, the first branch connection is located in the line between the second side of the double pipe heat exchanger 7 and the inlet of the secondary compressor 5, i.e. the refrigerant from the evaporator 8 is first cooled by heat exchange in the double pipe heat exchanger 7 and then merged with the supplementary refrigerant from the refrigerant conditioning branch.
In an embodiment of the present application, preferably, the cascade refrigeration system further includes a branch line, a third branch line interface is disposed on a pipeline between an inlet of the secondary expansion valve 6 and the intermediate heat exchanger 4, a fourth branch line interface is disposed on a pipeline between an outlet of the evaporator 8 and an inlet of the secondary compressor 5, and two ends of the branch line are respectively communicated with the third branch line interface and the fourth branch line interface; in particular, the fourth branch interface may be located between the evaporator 8 and the double pipe heat exchanger 7.
Alternatively, the fourth branch port may be located between the double pipe heat exchanger 7 and the secondary compressor 5. When the fourth branch connection is located on the line between the secondary compressor 5 and the double pipe heat exchanger 7, the first branch connection is preferably located on the line between the fourth branch connection and the inlet of the secondary compressor 5.
The branch circuit can be opened or closed, and preferably, the branch circuit is provided with a return air cooling solenoid valve 12, so as to control the opening or closing of the branch circuit through the return air cooling solenoid valve 12. When the tapping branch is closed, the refrigerant from the secondary refrigeration circuit of the intermediate heat exchanger 4 can flow entirely towards the secondary expansion valve 6 and then return to the secondary compressor 5 via the evaporator 8; when the branch is opened, part of the refrigerant from the intermediate heat exchanger 4 returns to the secondary compressor 5 through the secondary expansion valve 6 and the evaporator 8, and part of the refrigerant directly crosses the secondary expansion valve 6 and the evaporator 8 through the branch and merges with the refrigerant from the evaporator 8 and then returns to the secondary compressor 5, so that part of the refrigerant flowing out through the branch is mixed with the refrigerant from the outlet of the evaporator 8, the secondary return air temperature is reduced, and the secondary exhaust air temperature is further reduced.
In this embodiment, preferably, a capillary tube 13 is further disposed on the branch line, and the capillary tube 13 is connected in series with the return air temperature reduction solenoid valve 12, so as to throttle and reduce the temperature of the refrigerant flowing through the branch line through the capillary tube 13.
The application further provides a refrigerating device which comprises the cascade refrigerating system of any one of the embodiments.
In this embodiment, the refrigeration apparatus includes the cascade refrigeration system, so that the refrigeration apparatus has all the advantages of the cascade refrigeration system, and the detailed description thereof is omitted here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.
Claims (10)
1. A cascade refrigeration system, comprising:
the secondary refrigeration loop comprises a secondary compressor, an intermediate heat exchanger and an evaporator which are sequentially connected in series;
the refrigerant regulating branch comprises a storage tank for storing refrigerant and an air outlet pipe section;
a first branch interface is arranged on a pipeline between an inlet of the secondary compressor and the evaporator, one end of the air outlet pipe section is communicated with the first branch interface, and the other end of the air outlet pipe section is communicated with the storage tank;
and a refrigerant regulating valve is arranged on the air outlet pipe section.
2. The cascade refrigeration system of claim 1, wherein the refrigerant conditioning branch further comprises an intake spool section;
a second branch connector is arranged on a pipeline between the outlet of the secondary compressor and the intermediate heat exchanger, one end of the air inlet pipe section is communicated with the second branch connector, and the other end of the air inlet pipe section is communicated with the storage tank;
and the air inlet pipe section is provided with an unloading valve.
3. The cascade refrigeration system of claim 2, wherein the secondary refrigeration loop further comprises a secondary expansion valve coupled in series between the intermediate heat exchanger and the inlet of the evaporator.
4. The cascade refrigeration system of claim 3, wherein the secondary refrigeration loop further comprises a double pipe heat exchanger;
the double-pipe heat exchanger comprises a first side and a second side which can exchange heat, the first side of the double-pipe heat exchanger is connected between the inlet of the evaporator and the secondary expansion valve in series, and the second side of the double-pipe heat exchanger is connected between the outlet of the evaporator and the secondary compressor in series.
5. The cascade refrigeration system of claim 4 further comprising a shunt branch;
a third branch interface is arranged on a pipeline between the inlet of the second-stage expansion valve and the intermediate heat exchanger, and a fourth branch interface is arranged on a pipeline between the outlet of the evaporator and the inlet of the second-stage compressor;
two ends of the shunting branch are respectively communicated with the third branch interface and the fourth branch interface;
and an air return cooling electromagnetic valve is arranged on the flow dividing branch.
6. The cascade refrigeration system of claim 5, wherein the fourth bypass interface is located between the outlet of the evaporator and the double-tube heat exchanger;
alternatively, the fourth branch connection is located between the double pipe heat exchanger and an inlet of the secondary compressor.
7. The cascade refrigeration system of claim 5, wherein the first branch interface is located in a conduit between the fourth branch interface and a secondary compressor inlet.
8. The cascade refrigeration system according to claim 5 wherein a capillary tube is further disposed on said bypass, said capillary tube being connected in series with said return air cooling solenoid valve.
9. The cascade refrigeration system of claim 1, further comprising a primary refrigeration loop comprising, in series, a primary compressor, a heat exchanger, a primary expansion valve, and the intermediate heat exchanger.
10. A refrigeration apparatus comprising the cascade refrigeration system of any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222974043.2U CN218442845U (en) | 2022-11-07 | 2022-11-07 | Cascade refrigerating system and refrigerating equipment |
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| CN202222974043.2U CN218442845U (en) | 2022-11-07 | 2022-11-07 | Cascade refrigerating system and refrigerating equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117469871A (en) * | 2023-12-26 | 2024-01-30 | 珠海格力电器股份有限公司 | Control method and device of refrigeration system, refrigeration system and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117469871A (en) * | 2023-12-26 | 2024-01-30 | 珠海格力电器股份有限公司 | Control method and device of refrigeration system, refrigeration system and storage medium |
| CN117469871B (en) * | 2023-12-26 | 2024-04-05 | 珠海格力电器股份有限公司 | Control method and device of refrigeration system, refrigeration system and storage medium |
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