阅读说明：本技术 调节用冷设备温度的冷却系统、控制方法 (Cooling system for adjusting temperature of cold equipment and control method ) 是由 梁钧 胡加兴 于 2020-05-18 设计创作，主要内容包括：本申请公开了一种调节用冷设备温度的冷却系统、控制方法,冷却系统包括与用冷设备连通成冷媒回路的制冷压缩机和冷媒分配装置,其中冷媒由制冷压缩机输出后经由冷媒分配装置流向用冷设备,再由用冷设备返回制冷压缩机；冷媒分配装置包括冷媒储罐和冷媒泵,冷媒储罐配置有第一流出管、第二流出管和第三流出管,冷媒储罐还配置有与制冷压缩机连通的第一入口管；冷媒泵具有相对的流入口和流出口,其中第一流出管和第二流出管并联接入流入口,流出口连通至用冷设备,该方案相对于现有技术,冷却系统根据用冷设备的环境温度采用不同的循环方式,以节省功耗,延长整个冷却系统的寿命。(The application discloses a cooling system for adjusting the temperature of cold equipment and a control method, wherein the cooling system comprises a refrigeration compressor and a refrigerant distribution device which are communicated with the cold equipment to form a refrigerant loop, wherein a refrigerant flows to the cold equipment through the refrigerant distribution device after being output by the refrigeration compressor, and then returns to the refrigeration compressor through the cold 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, and the refrigerant storage tank is also provided with a first inlet pipe communicated with the refrigeration compressor; the refrigerant pump is provided with an inflow port and an outflow port which are opposite, wherein 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 equipment.)

1. The cooling system for adjusting the temperature of the cold equipment is characterized by comprising a refrigeration compressor and a refrigerant distribution device, wherein the refrigeration compressor is communicated with the cold equipment to form a refrigerant loop, and the refrigerant flows to the cold equipment through the refrigerant distribution device after being output by the refrigeration compressor and then returns to the refrigeration compressor through the cold 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 is provided with an inflow port and an outflow port which are opposite, wherein the first outflow pipe and the second outflow pipe are connected into the inflow port in parallel, and the outflow port is communicated to the cooling equipment.

2. The cooling system of claim 1, wherein 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 a bottom of the refrigerant storage tank.

3. The cooling system of claim 2, wherein inlets of the first outflow pipe, the second outflow pipe and the third outflow pipe are located inside the refrigerant storage tank and are sequentially lower in height.

4. The cooling system according to claim 3, wherein in the refrigerant storage tank, the liquid level of the refrigerant corresponds to a first liquid level height, a second liquid level height and a third liquid level height in different temperature ranges;

the first liquid level height only submerges the inlet of the first outflow pipe, the second liquid level height only submerges the inlet of the first outflow pipe and the inlet of the second outflow pipe, and the third liquid level height submerges the inlets of the first outflow pipe, the second outflow pipe and the third outflow pipe.

5. Cooling system according to claim 4, characterized in that the different temperature intervals are more than 20 ℃, 20 ℃ to 10 ℃ and less than 10 ℃.

6. The cooling system of claim 5, wherein the coolant reservoir has a long axis, and the first outlet pipe, the second outlet pipe, the third outlet pipe, and the first inlet pipe are sequentially arranged along the long axis in the coolant reservoir.

7. The cooling system of claim 1, wherein the outflow port intersects the third outflow pipe via a one-way valve and communicates to a cooling device.

8. The cooling system of claim 1, further comprising an integrated component configured to mount the first control valve, the second control valve, and the third control valve.

9. The control method of the cooling system according to any one of claims 1 to 8, characterized by comprising:

detecting the 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 to the refrigerant storage tank from the refrigeration compressor, then flowing to the cold utilization equipment through the third outflow pipe, and then returning to the refrigeration compressor from the cold utilization equipment;

when the ambient temperature reaches a second preset value, starting the refrigeration compressor, a refrigerant pump and a second control valve, closing the first control valve and a third control valve, conveying a refrigerant to the refrigerant storage tank from the refrigeration compressor, conveying the refrigerant to the cold using equipment through the refrigerant pump, and returning the refrigerant to the refrigeration compressor from the cold using equipment;

and when the ambient temperature reaches a third preset value, starting the refrigerant pump and the first control valve, closing the refrigeration compressor, the second control valve and the third control valve, and feeding the refrigerant from the refrigerant storage tank to the cold using equipment by the refrigerant pump and returning the refrigerant to the refrigerant storage tank by the cold using equipment.

10. The cooling system based control method according to claim 9, wherein the ambient temperature is an ambient temperature of the cooling equipment or an ambient temperature of the refrigerant storage tank.

Technical Field

The application relates to the field of refrigeration, in particular to a cooling system and a control method for adjusting the temperature of cold equipment.

Background

When the existing cooling system cools the cooling equipment, the refrigerant is cooled by the compressor and then input into the liquid storage tank, and then the pump conveys the refrigerant in the liquid storage tank to the heat exchange pipeline of the cooling equipment and then returns to the compressor by the cooling equipment. Part of the cold using equipment can be in an uninterrupted operating state, so that the cooling system can continuously cool the cold using equipment, the energy consumption of the cooling system is larger at the moment,

moreover, when the external environment temperature of the cooling device is low, the compressor is prone to have the problem of insufficient liquid supply due to too low condensing pressure, and the heat load of the cooling device is low at this time, and frequent starting and stopping of the compressor can also be caused, so that the condition not only causes large energy consumption of the cooling system, but also shortens the service life of the whole cooling system.

Disclosure of Invention

The application provides a cooling system of cold charge equipment temperature is used in regulation for solve the technical problem that cooling system consumption is big among the prior art, life shortens.

The application provides a cooling system for adjusting the temperature of cold equipment, which comprises a refrigeration compressor and a refrigerant distribution device, wherein the refrigeration compressor is communicated with the cold equipment to form a refrigerant loop, and a refrigerant flows to the cold equipment through the refrigerant distribution device after being output by the refrigeration compressor and then returns to the refrigeration compressor through the cold 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 is provided with an inflow port and an outflow port which are opposite, wherein the first outflow pipe and the second outflow pipe are connected into the inflow port in parallel, and the outflow port is communicated to the cooling equipment.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several 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 all inserted into the refrigerant storage tank from the bottom of the refrigerant storage tank.

Optionally, inlets of the first outflow pipe, the second outflow pipe, and the third outflow pipe are all located inside the refrigerant storage tank, and heights 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 a first liquid level height, a second liquid level height and a third liquid level height in different temperature ranges respectively;

the first liquid level height only submerges the inlet of the first outflow pipe, the second liquid level height only submerges the inlet of the first outflow pipe and the inlet of the second outflow pipe, and the third liquid level height submerges the inlets of the first outflow pipe, the second outflow pipe and the third outflow pipe.

Optionally, the different temperature ranges 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 port is connected with the third outflow pipe through a one-way valve and then communicated to a cooling device.

Optionally, the cooling system further comprises an integrated component for mounting the first control valve, the second control valve and the third control valve.

The utility model provides a cooling system of cold equipment temperature is used in regulation, cooling system adopt different circulation modes according to the ambient temperature with cold equipment to save the consumption, prolong whole cooling system's life-span.

The application also provides the following technical scheme:

a control method of a cooling system based on the above, the control method comprising:

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 to the refrigerant storage tank from the refrigeration compressor, then flowing to the cold utilization equipment through the third outflow pipe, and then returning to the refrigeration compressor from the cold utilization equipment;

when the ambient temperature reaches a second preset value, starting the refrigeration compressor, a refrigerant pump and a second control valve, closing the first control valve and a third control valve, conveying a refrigerant to the refrigerant storage tank from the refrigeration compressor, conveying the refrigerant to the cold using equipment through the refrigerant pump, and returning the refrigerant to the refrigeration compressor from the cold using equipment;

and when the ambient temperature reaches a third preset value, starting the refrigerant pump and the first control valve, closing the refrigeration compressor, the second control valve and the third control valve, and feeding the refrigerant from the refrigerant storage tank to the cold using equipment by the refrigerant pump and returning the refrigerant to the refrigerant storage tank by the cold using equipment.

Optionally, the ambient temperature is the ambient temperature of the cooling device or the 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 cold 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 structural diagram of a cooling system according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of the refrigerant distribution device in FIG. 1;

FIG. 3 is a block diagram of a cooling system control method.

The reference numerals in the figures are illustrated as follows:

100. a cooling system; 10. cooling equipment is used; 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. a one-way valve.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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 a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components 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 in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" 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 a temperature of a cooling device 10 includes a refrigeration compressor 20 and a refrigerant distribution device 30, which are connected to the cooling device 10 to form a refrigerant loop, wherein a refrigerant is output from the refrigeration compressor 20, flows to the cooling device 10 through the refrigerant distribution device 30, and then returns to the refrigeration compressor 20 through 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 communicated with the refrigeration compressor 20;

the refrigerant pump 32 has an inlet and an outlet opposite to each other, wherein the first outlet 311 and the second outlet 312 are connected in parallel to the inlet, and the outlet is connected to the cooling equipment 10.

The cooling system 100 circulates according to the ambient temperature of the cooling equipment 10 or the refrigerant storage tank 31 by:

firstly, when the ambient temperature reaches a first preset value, starting the refrigeration compressor 20 and the third control valve 317, closing the refrigerant pump 32, the first control valve 315 and the second control valve 316, delivering the refrigerant from the refrigeration compressor 20 to the refrigerant storage tank 31, flowing to the cooling device 10 through the third outflow pipe 313, and returning to the refrigeration compressor 20 through the cooling device 10; the refrigerant in the refrigerant storage tank 31 is expanded by heat, and the refrigerant has a higher liquid level at this time, and the refrigerant can be conveyed to the cooling device 10 without providing power to the refrigerant, so that the power consumption of the cooling system 100 is saved.

Secondly, when the ambient temperature reaches a second preset value, starting the refrigeration compressor 20, the refrigerant pump 32 and the second control valve 316, closing the first control valve 315 and the third control valve 317, wherein the refrigerant is conveyed from the refrigeration compressor 20 to the refrigerant storage tank 31, then conveyed to the cooling equipment 10 through the refrigerant pump 32, and then returned to the refrigeration compressor 20 through the cooling equipment 10; at this time, the refrigerant pump 32 assists the operation of the refrigeration compressor 20 to save the power consumption of the refrigeration compressor 20, reduce the condensation temperature, improve the refrigeration capacity, and improve the energy efficiency ratio.

Thirdly, 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 cooling equipment 10 by the refrigerant pump 32 and then returned to the refrigerant storage tank 31 by the cooling equipment 10; the cooling system 100 utilizes ambient temperature for cooling, improving the energy efficiency ratio of the overall cooling system 100.

The cooling system 100 adopts different circulation modes according to the ambient temperature of the cooling device 10 to save power consumption and prolong the service life of the whole cooling system 100.

In this embodiment, the first predetermined value is greater than 20 ℃, the second predetermined value is 20 ℃ to 10 ℃, and the third predetermined 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 required working temperature of the cooling device 10, and will not be further 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 all inserted into the refrigerant storage tank 31 from the bottom of the refrigerant storage tank 31.

In another embodiment, when impurities are contained in the refrigerant, the impurities may be deposited at the bottom of the refrigerant storage tank 31, and in order to prevent the impurities from entering the pipeline, the first outflow pipe 311, the second outflow pipe 312, and the third outflow pipe 313 have their inlets located inside the refrigerant storage tank 31 and their heights are sequentially lowered, and when the cooling system 100 is circulated in different manners, the first outflow pipe 311, the second outflow pipe 312, and the third outflow pipe 313 extract the refrigerant close to the liquid level, so that the impurities in the refrigerant storage tank 31 are prevented from entering the pipeline.

The approximate height of the liquid surface in the refrigerant storage tank 31 is determined by observing whether or not the refrigerant flows out from the third outflow pipe 313. When the refrigerant flows out of the first outflow pipe 311 and the second outflow pipe 312, since the refrigerant pump 32 is required to provide power, and the refrigerant is prevented from flowing back into the refrigerant storage tank 31 from the third outflow pipe 313, the inlet heights of the third outflow pipe 313 are both higher than the inlet pipes of the first outflow pipe 311 and the second outflow pipe 312.

In another embodiment, the liquid level of the refrigerant in the refrigerant storage tank 31 corresponds to a first liquid level height, a second liquid level height and a third liquid level height in different temperature ranges;

wherein the first liquid level submerges only the inlet of the first effluent pipe 311, the second liquid level submerges only the inlet of the first effluent pipe 311 and the inlet of the second effluent pipe 312, and the third liquid level submerges the inlets of the first effluent pipe 311, the second effluent pipe 312, and the third effluent pipe 313.

The refrigerant with the same mass has different volumes at different temperatures. The first level height, the second level height and the third level height are not fixed values, but have certain intervals. 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, the different temperature intervals may also 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 receiver 31 is shown in the X direction in fig. 2.

The refrigerant reservoir 31 and the refrigerant pump 32 may be installed in a spatially opposite manner. Of course, the installation positions of the refrigerant accumulator 31 and the refrigerant pump 32 may be adjusted according to actual needs.

In another embodiment, the outflow port passes through a check valve 321 and then joins the third outflow pipe 313 and communicates with the cooling device 10.

The check valve 321 is provided to prevent the refrigerant in the third outflow pipe 313 from flowing back into the refrigerant pump 32 when the refrigerant in the refrigerant storage tank 31 enters the cooling equipment 10 through the third outflow pipe 313.

In another embodiment, to further make the refrigerant distribution device 30 more compact, the cooling system 100 further includes an integrated component for installing the first control valve 315, the second control valve 316 and the third control valve.

The integrated component may be a board or a box.

Referring to fig. 3, fig. 3 is a block diagram of a control method based on the cooling system 100 according to an embodiment of the present application.

The control method based on the cooling system 100 comprises the following steps:

detecting the ambient temperature;

when the ambient temperature reaches a first preset value, starting the refrigeration compressor 20 and the third control valve 317, closing the refrigerant pump 32, the first control valve 315 and the second control valve 316, delivering the refrigerant from the refrigeration compressor 20 to the refrigerant storage tank 31, flowing to the cooling device 10 through the third outflow pipe 313, and returning to the refrigeration compressor 20 through the cooling device 10;

when the ambient temperature reaches a second preset value, starting the refrigeration compressor 20, the refrigerant pump 32 and the second control valve 316, closing the first control valve 315 and the third control valve 317, wherein the refrigerant is conveyed from the refrigeration compressor 20 to the refrigerant storage tank 31, then conveyed to the cooling equipment 10 through the refrigerant pump 32, and then returned to the refrigeration compressor 20 through the cooling equipment 10;

when the ambient temperature reaches the 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 cooling device 10 by the refrigerant pump 32 and then returned to the refrigerant storage tank 31 by the cooling device 10.

According to the ambient temperature of the cooling device 10, the cooling system 100 is controlled to adopt different circulation modes, so as to save power consumption and prolong the service life of the whole cooling system 100.

In another embodiment, the first preset value is an ambient temperature greater than 20 ℃; the second preset value is 20-10 ℃; 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 required working temperature of the cooling device 10, and will not be further described herein.

In another embodiment, the ambient temperature is the ambient temperature of the cooling device 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 can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.