CN113686036B - Cooling system and control method for regulating temperature of cooling equipment - Google Patents
Cooling system and control method for regulating temperature of cooling equipment Download PDFInfo
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- CN113686036B CN113686036B CN202010421241.9A CN202010421241A CN113686036B CN 113686036 B CN113686036 B CN 113686036B CN 202010421241 A CN202010421241 A CN 202010421241A CN 113686036 B CN113686036 B CN 113686036B
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- refrigerant
- outflow pipe
- storage tank
- control valve
- refrigeration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application discloses a cooling system and a control method for adjusting the temperature of a cooling device, wherein the cooling system comprises a refrigeration compressor and a refrigerant distribution device which are communicated with the cooling device to form a refrigerant loop, wherein the refrigerant flows to the cooling device through the refrigerant distribution device after being output by the refrigeration compressor and then returns to the refrigeration compressor by the cooling device, the refrigerant distribution device comprises a refrigerant storage tank and a refrigerant pump, the refrigerant storage tank is provided with a first outflow pipe, a second outflow pipe and a third outflow pipe, the refrigerant storage tank is also provided with a first inlet pipe which is communicated with the refrigeration compressor, the refrigerant pump is provided with an inflow port and an outflow port which are opposite, the first outflow pipe and the second outflow pipe are connected in parallel to the inflow port, and the outflow port is communicated to the cooling device.
Description
Technical Field
The application relates to the field of refrigeration, in particular to a cooling system for adjusting the temperature of cooling equipment and a control method.
Background
When the existing cooling system cools the cooling equipment, the refrigerant is cooled by the compressor and then is input into the liquid storage tank, then the pump conveys the refrigerant of the liquid storage tank to the heat exchange pipeline of the cooling equipment, and then the refrigerant returns to the compressor by the cooling equipment. Part of the cooling equipment can be in an uninterrupted running working state, so that the cooling system can continuously cool the cooling device, and the energy consumption of the cooling system is high,
Moreover, when the external environment temperature of the cooling equipment is lower, the problem of insufficient liquid supply caused by excessively low condensing pressure easily occurs to the compressor, and the frequent start-stop of the compressor can be caused due to the smaller heat load of the cooling equipment at the moment, so that the energy consumption of the cooling system is high, and the service life of the whole cooling system can be shortened.
Disclosure of Invention
The application provides a cooling system for adjusting the temperature of cooling equipment, which is used for solving the technical problems of high power consumption and shortened service life of the cooling system in the prior art.
The application provides a cooling system for adjusting the temperature of cooling equipment, which comprises a refrigeration compressor and a refrigerant distribution device, wherein the refrigeration compressor is communicated with the cooling equipment to form a refrigerant loop, the refrigerant flows to the cooling equipment through the refrigerant distribution device after being output by the refrigeration compressor, and then returns to the refrigeration compressor by the cooling equipment;
The refrigerant distribution device comprises a refrigerant storage tank and a refrigerant pump, wherein the refrigerant storage tank is provided with a first outflow pipe, a second outflow pipe and a third outflow pipe, the first outflow pipe is provided with a first control valve, the second outflow pipe is provided with a second control valve, the third outflow pipe is provided with a third control valve, and the refrigerant storage tank is also provided with a first inlet pipe communicated with the refrigeration compressor;
The refrigerant pump has opposite inflow and outflow ports, wherein the first and second outflow pipes are coupled in parallel to the inflow port, and the outflow port is communicated to a cooling device.
The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.
Optionally, the first outflow pipe, the second outflow pipe, the third outflow pipe and the first inlet pipe are inserted into the refrigerant storage tank from the bottom of the refrigerant storage tank.
Optionally, the inlets of the first outflow pipe, the second outflow pipe and the third outflow pipe are all positioned in the refrigerant storage tank and the heights of the inlets of the first outflow pipe, the second outflow pipe and the third outflow pipe are sequentially reduced.
Optionally, in the refrigerant storage tank, the liquid level of the refrigerant corresponds to the first liquid level height, the second liquid level height and the third liquid level height in different temperature intervals respectively;
wherein the first liquid level is submerged only in the inlet of the first outflow pipe, the second liquid level is submerged only in the inlet of the first outflow pipe and in the inlet of the second outflow pipe, and the third liquid level is submerged in the inlets of the first outflow pipe, the second outflow pipe, and the third outflow pipe.
Optionally, the different temperature intervals are greater than 20 ℃, 20 ℃ to 10 ℃ and less than 10 ℃.
Optionally, the refrigerant storage tank has a long axis, and the first outflow pipe, the second outflow pipe, the third outflow pipe and the first inlet pipe are sequentially arranged in the refrigerant storage tank along the long axis.
Optionally, the outflow opening is intersected with the third outflow opening after passing through a one-way valve and is communicated with cooling equipment.
Optionally, the cooling system further comprises an integrated component for mounting the first, second and third control valves.
According to the cooling system for adjusting the temperature of the cooling equipment, different circulation modes are adopted by the cooling system according to the ambient temperature of the cooling equipment, so that the power consumption is saved, and the service life of the whole cooling system is prolonged.
The application also provides the following technical scheme:
the control method based on the cooling system described above includes:
detecting an ambient temperature;
when the ambient temperature reaches a first preset value, starting the refrigeration compressor and a third control valve, closing the refrigerant pump, the first control valve and the second control valve, conveying a refrigerant from the refrigeration compressor to the refrigerant storage tank, flowing to the refrigeration equipment through the third outflow pipe, and returning to the refrigeration compressor from the refrigeration equipment;
when the ambient temperature reaches a second preset value, starting the refrigeration compressor, the refrigerant pump and the second control valve, closing the first control valve and the third control valve, conveying the refrigerant from the refrigeration compressor to the refrigerant storage tank, conveying the refrigerant to the refrigeration equipment through the refrigerant pump, and returning the refrigerant from the refrigeration equipment to the refrigeration compressor;
When the ambient temperature reaches a third preset value, the refrigerant pump and the first control valve are started, the refrigeration compressor, the second control valve and the third control valve are closed, and the refrigerant is sent to the cooling equipment from the refrigerant storage tank by the refrigerant pump and then returned to the refrigerant storage tank by the cooling equipment.
Optionally, the ambient temperature is an ambient temperature of the cooling device or an ambient temperature of the refrigerant storage tank.
According to the control method based on the cooling system, the cooling system is controlled to adopt different circulation modes according to the ambient temperature of the cooling equipment, so that the power consumption is saved, and the service life of the whole cooling system is prolonged.
Drawings
FIG. 1 is a schematic diagram of a cooling system according to an embodiment of the present application;
FIG. 2 is a schematic view of the cooling distribution device of FIG. 1;
FIG. 3 is a block diagram of a cooling system control method.
Reference numerals in the drawings are described as follows:
100. A cooling system; 10, cooling equipment, 20, a refrigeration compressor, 30, a refrigerant distribution device, 31, a refrigerant storage tank, 311, a first outflow pipe, 312, a second outflow pipe, 313, a third outflow pipe, 314, a first inlet pipe, 315, a first control valve, 316, a second control valve, 317, a third control valve, 32, a refrigerant pump, 321 and a one-way valve.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In one embodiment, as shown in fig. 1 and 2, a cooling system 100 for adjusting the temperature of a cooling device 10 includes a refrigeration compressor 20 and a refrigerant distribution device 30 that are connected to the cooling device 10 to form a refrigerant circuit, wherein the refrigerant is output by the refrigeration compressor 20, flows to the cooling device 10 through the refrigerant distribution device 30, and returns to the refrigeration compressor 20 from the cooling device 10;
The refrigerant distribution device 30 includes a refrigerant storage tank 31 and a refrigerant pump 32, the refrigerant storage tank 31 is provided with a first outflow pipe 311, a second outflow pipe 312 and a third outflow pipe 313, the first outflow pipe 311 is provided with a first control valve 315, the second outflow pipe 312 is provided with a second control valve 316, the third outflow pipe 313 is provided with a third control valve 317, and the refrigerant storage tank 31 is further provided with a first inlet pipe 314 communicating with the refrigeration compressor 20;
The refrigerant pump 32 has opposite inflow and outflow ports, wherein the first outflow pipe 311 and the second outflow pipe 312 are connected in parallel to the inflow port, and the outflow port is communicated to the cooling apparatus 10.
The cooling system 100 circulates according to the ambient temperature at which the cooling device 10 or the refrigerant storage tank 31 is located by:
First, when the ambient temperature reaches a first preset value, the refrigeration compressor 20 and the third control valve 317 are started, the refrigerant pump 32, the first control valve 315 and the second control valve 316 are closed, the refrigerant is conveyed to the refrigerant storage tank 31 by the refrigeration compressor 20, flows to the refrigeration equipment 10 through the third outflow pipe 313 and returns to the refrigeration compressor 20 by the refrigeration equipment 10, the refrigerant in the refrigerant storage tank 31 is heated and expanded, and at the moment, the refrigerant has a higher liquid level, and can be conveyed to the refrigeration equipment 10 without providing power for the refrigerant, so that the power consumption of the cooling system 100 is saved.
Secondly, when the ambient temperature reaches a second preset value, the refrigeration compressor 20, the refrigerant pump 32 and the second control valve 316 are started, the first control valve 315 and the third control valve 317 are closed, the refrigerant is conveyed to the refrigerant storage tank 31 from the refrigeration compressor 20, then is conveyed to the refrigeration equipment 10 through the refrigerant pump 32, and is returned to the refrigeration compressor 20 from the refrigeration equipment 10, and at the moment, the refrigerant pump 32 assists the refrigeration compressor 20 to operate so as to save the power consumption of the refrigeration compressor 20, reduce the condensation temperature, improve the refrigerating capacity and improve the energy efficiency ratio.
Third, when the ambient temperature reaches a third preset value, the refrigerant pump 32 and the first control valve 315 are started, the refrigeration compressor 20, the second control valve 316 and the third control valve 317 are closed, the refrigerant is sent from the refrigerant storage tank 31 to the refrigeration equipment 10 by the refrigerant pump 32 and then returned to the refrigerant storage tank 31 by the refrigeration equipment 10, and the cooling system 100 uses the ambient temperature to perform refrigeration, so that the energy efficiency ratio of the whole cooling system 100 is improved.
The cooling system 100 employs different circulation patterns according to the ambient temperature of the cooling apparatus 10 to save power consumption and extend the life of the entire cooling system 100.
In this embodiment, the first preset value is greater than 20 ℃, the second preset value is 20 ℃ to 10 ℃, and the third preset value is less than 10 ℃. Of course, in other embodiments, the first preset value, the second preset value, and the third preset value are adjusted according to the desired operating temperature of the refrigeration appliance 10, and will not be described herein.
Further, the refrigerant pump 32 is a fluorine pump.
In another embodiment, the first outflow pipe 311, the second outflow pipe 312, the third outflow pipe 313, and the first inlet pipe 314 are inserted into the refrigerant storage tank 31 from the bottom of the refrigerant storage tank 31.
In another embodiment, when the refrigerant has impurities, the impurities will be deposited at the bottom of the refrigerant storage tank 31, in order to avoid the impurities entering the pipeline, the inlets of the first outflow pipe 311, the second outflow pipe 312 and the third outflow pipe 313 are all located inside the refrigerant storage tank 31 and the heights of the three are sequentially reduced, and when the cooling system 100 circulates in different modes, the first outflow pipe 311, the second outflow pipe 312 and the third outflow pipe 313 draw the refrigerant close to the liquid level, so as to avoid the impurities in the refrigerant storage tank 31 entering the pipeline.
The approximate height of the liquid surface in the refrigerant reservoir 31 is determined by observing whether the refrigerant flows out of the third outflow pipe 313. When the refrigerant flows out of the first outflow pipe 311 and the second outflow pipe 312, the refrigerant pump 32 is required to supply power, and the inlet height of the third outflow pipe 313 is higher than the inlet pipes of the first outflow pipe 311 and the second outflow pipe 312 in order to avoid the refrigerant flowing back into the refrigerant storage tank 31 from the third outflow pipe 313.
In another embodiment, the liquid level of the refrigerant in the refrigerant storage tank 31 corresponds to the first liquid level, the second liquid level and the third liquid level in different temperature ranges;
wherein the first liquid level is only submerged in the inlet of the first outflow pipe 311, the second liquid level is only submerged in the inlet of the first outflow pipe 311 and the inlet of the second outflow pipe 312, and the third liquid level is submerged in the inlets of the first outflow pipe 311, the second outflow pipe 312 and the third outflow pipe 313.
The volumes of the refrigerants with the same mass at different temperatures are different. The first liquid level, the second liquid level and the third liquid level are not fixed values, but have a certain interval. In different intervals, the liquid level of the refrigerant submerges the inlet of the corresponding first outflow pipe 311, the inlet of the second outflow pipe 312 and the inlet of the third outflow pipe 313.
In this embodiment, the different temperature ranges are greater than 20 ℃,20 ℃ to 10 ℃ and less than 10 ℃. Of course, in other embodiments, different temperature ranges may be adjusted according to the heights of the inlet of the first outflow pipe 311, the inlet of the second outflow pipe 312, and the inlet of the third outflow pipe 313, which will not be described herein.
In another embodiment, in order to make the refrigerant distribution device 30 compact, the refrigerant storage tank 31 has a long axis, and the first outflow pipe 311, the second outflow pipe 312, the third outflow pipe 313 and the first inlet pipe 314 are sequentially arranged along the long axis in the refrigerant storage tank 31.
The refrigerant reservoir 31 is shown in the X direction in fig. 2.
The refrigerant storage tank 31 and the refrigerant pump 32 may be installed in a spatially opposed manner. Of course, the mounting positions of the refrigerant storage tank 31 and the refrigerant pump 32 may be adjusted according to actual needs.
In another embodiment, the outflow opening intersects the third outflow pipe 313 via a one-way valve 321 and communicates with the cooling apparatus 10.
When the refrigerant in the refrigerant reservoir 31 enters the refrigeration apparatus 10 through the third outflow pipe 313, the check valve 321 is provided to prevent the refrigerant in the third outflow pipe 313 from flowing back into the refrigerant pump 32.
In another embodiment, to further make the refrigerant distribution device 30 more compact, the cooling system 100 further includes an integrated component for mounting the first control valve 315, the second control valve 316, and the third control valve.
The integrated component may be an integrated board or an integrated box.
Referring to fig. 3, fig. 3 is a block diagram illustrating a control method based on a cooling system 100 according to an embodiment of the application.
The control method based on the cooling system 100 includes:
detecting an ambient temperature;
when the ambient temperature reaches a first preset value, the refrigeration compressor 20 and the third control valve 317 are started, the refrigerant pump 32, the first control valve 315 and the second control valve 316 are closed, the refrigerant is conveyed to the refrigerant storage tank 31 by the refrigeration compressor 20, flows to the refrigeration equipment 10 through the third outflow pipe 313, and returns to the refrigeration compressor 20 by the refrigeration equipment 10;
when the ambient temperature reaches a second preset value, the refrigeration compressor 20, the refrigerant pump 32 and the second control valve 316 are started, the first control valve 315 and the third control valve 317 are closed, the refrigerant is conveyed to the refrigerant storage tank 31 by the refrigeration compressor 20, is conveyed to the refrigeration equipment 10 by the refrigerant pump 32, and is returned to the refrigeration compressor 20 by the refrigeration equipment 10;
When the ambient temperature reaches a third preset value, the refrigerant pump 32 and the first control valve 315 are started, the refrigeration compressor 20, the second control valve 316 and the third control valve 317 are closed, and the refrigerant is sent from the refrigerant storage tank 31 to the refrigeration equipment 10 by the refrigerant pump 32 and then returned to the refrigerant storage tank 31 by the refrigeration equipment 10.
Depending on the ambient temperature of the chiller 10, the cooling system 100 is controlled in different cycles to save power consumption and extend the life of the overall cooling system 100.
In another embodiment, the first preset value is an ambient temperature greater than 20 ℃, the second preset value is 20 ℃ to 10 ℃, and the third preset value is less than 10 ℃. Of course, in other embodiments, the first preset value, the second preset value, and the third preset value are adjusted according to the desired operating temperature of the refrigeration appliance 10, and will not be described herein.
In another embodiment, the ambient temperature is the ambient temperature of the refrigeration unit 10 or the ambient temperature of the refrigerant storage tank 31. Of course, the ambient temperature may also be an indoor or outdoor temperature.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.
The foregoing examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010421241.9A CN113686036B (en) | 2020-05-18 | 2020-05-18 | Cooling system and control method for regulating temperature of cooling equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010421241.9A CN113686036B (en) | 2020-05-18 | 2020-05-18 | Cooling system and control method for regulating temperature of cooling equipment |
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| CN113686036A CN113686036A (en) | 2021-11-23 |
| CN113686036B true CN113686036B (en) | 2025-05-16 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203286826U (en) * | 2013-05-13 | 2013-11-13 | 艾默生网络能源有限公司 | Refrigeration control system of machine room |
| CN212566362U (en) * | 2020-05-18 | 2021-02-19 | 浙江新涛环境科技有限公司 | Cooling systems for regulating the temperature of cold equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001343171A (en) * | 2000-06-02 | 2001-12-14 | Showa Denko Kk | Refrigerating system |
| CN202041032U (en) * | 2011-04-02 | 2011-11-16 | 北京凯运通科技发展有限公司 | Liquid refrigerant conveying device of air conditioning system |
| CN202675513U (en) * | 2012-08-01 | 2013-01-16 | 北京德能恒信科技有限公司 | Heat pipe and heat pump combined system |
| JP2014119150A (en) * | 2012-12-14 | 2014-06-30 | Sharp Corp | Air conditioner |
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2020
- 2020-05-18 CN CN202010421241.9A patent/CN113686036B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203286826U (en) * | 2013-05-13 | 2013-11-13 | 艾默生网络能源有限公司 | Refrigeration control system of machine room |
| CN212566362U (en) * | 2020-05-18 | 2021-02-19 | 浙江新涛环境科技有限公司 | Cooling systems for regulating the temperature of cold equipment |
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Effective date of registration: 20230424 Address after: Room 8180, building C, 555 Dongchuan Road, Minhang District, Shanghai 201100 Applicant after: SHANGHAI HUSHI REFRIGERATION EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 312500 building 4, 68 Xintao Road, Xinchang County, Shaoxing City, Zhejiang Province Applicant before: Zhejiang Xintao Environmental Technology Co.,Ltd. |
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Address after: Room 8180, building C, 555 Dongchuan Road, Minhang District, Shanghai 201100 Applicant after: Shanghai Fuhuite Pump Manufacturing Co.,Ltd. Address before: Room 8180, building C, 555 Dongchuan Road, Minhang District, Shanghai 201100 Applicant before: SHANGHAI HUSHI REFRIGERATION EQUIPMENT TECHNOLOGY Co.,Ltd. |
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