Cooling system and control method for regulating temperature of cooling equipment

Abstract

The present application discloses a cooling system and a control method for regulating the temperature of a refrigeration device. The cooling system comprises a refrigeration compressor and a refrigerant distribution device connected to the refrigeration device to form a refrigerant loop, wherein the refrigerant is output by the refrigeration compressor and flows to the refrigeration device via the refrigerant distribution device, and then returns to the refrigeration compressor from the refrigeration 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, and the refrigerant storage tank is also provided with a first inlet pipe connected to the refrigeration compressor; the refrigerant pump has a relative inlet and outlet, wherein the first outflow pipe and the second outflow pipe are connected in parallel to the inlet, and the outlet is connected to the refrigeration device. Compared with the prior art, the cooling system of this scheme adopts different circulation methods according to the ambient temperature of the refrigeration device to save power consumption and extend the life of the entire cooling system.

Description

Technical Field

[0001] The present application relates to the field of refrigeration, and in particular to a cooling system and a control method for regulating the temperature of refrigeration equipment. Background Art

[0002] When the existing cooling system cools the refrigeration equipment, the refrigerant is cooled by the compressor and then input into the liquid storage tank. Then the pump transports the refrigerant in the liquid storage tank to the heat exchange pipeline of the refrigeration equipment, and then returns to the compressor from the refrigeration equipment. Some refrigeration equipment will be in an uninterrupted operating state, so the cooling system will continue to cool down the refrigeration equipment. At this time, the energy consumption of the cooling system is relatively large.

[0003] Moreover, when the external ambient temperature of the refrigeration equipment is low, the compressor is prone to insufficient liquid supply due to low condensing pressure. At this time, the heat load of the refrigeration equipment is small, which will also cause the compressor to start and stop frequently. This situation not only causes high energy consumption of the cooling system, but also shortens the service life of the entire cooling system. Summary of the invention

[0004] The present application provides a cooling system for regulating the temperature of cooling equipment, which is used to solve the technical problems of high power consumption and shortened service life of cooling systems in the prior art.

[0005] The present application provides a cooling system for regulating the temperature of a refrigeration device, comprising a refrigeration compressor and a refrigerant distribution device connected to the refrigeration device to form a refrigerant circuit, wherein the refrigerant is output by the refrigeration compressor and flows to the refrigeration device through the refrigerant distribution device, and then returns to the refrigeration compressor from the refrigeration device;

[0006] 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 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 connected to a refrigeration compressor;

[0007] The refrigerant pump has an inlet and an outlet relative to each other, wherein the first outlet pipe and the second outlet pipe are connected in parallel to the inlet, and the outlet is connected to the refrigeration equipment.

[0008] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0009] 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.

[0010] Optionally, the inlets of the first outlet pipe, the second outlet pipe and the third outlet pipe are all located inside the refrigerant storage tank and their heights decrease successively.

[0011] 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;

[0012] The first liquid level height only immerses the inlet of the first outflow pipe, the second liquid level height only immerses the inlet of the first outflow pipe and the inlet of the second outflow pipe, and the third liquid level height immerses the inlets of the first outflow pipe, the second outflow pipe and the third outflow pipe.

[0013] Optionally, the different temperature intervals are greater than 20°C, 20°C to 10°C, and less than 10°C.

[0014] 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.

[0015] Optionally, the outflow port is connected to the third outflow pipe through a one-way valve and is connected to the cooling device.

[0016] Optionally, the cooling system further includes an integrated component, which is used to install the first control valve, the second control valve and the third control valve.

[0017] The present application discloses a cooling system for regulating the temperature of a cooling device. The cooling system adopts different circulation modes according to the ambient temperature of the cooling device to save power consumption and extend the life of the entire cooling system.

[0018] This application also provides the following technical solutions:

[0019] Based on the above-mentioned control method of the cooling system, the control method includes:

[0020] Detect ambient temperature;

[0021] When the ambient temperature reaches a first preset value, the refrigeration compressor and the third control valve are started, the refrigerant pump, the first control valve and the second control valve are closed, and the refrigerant is transported from the refrigeration compressor to the refrigerant storage tank, then flows to the refrigeration device through the third outflow pipe, and then returns to the refrigeration compressor from the refrigeration device;

[0022] When the ambient temperature reaches a second preset value, the refrigeration compressor, the refrigerant pump and the second control valve are started, the first control valve and the third control valve are closed, and the refrigerant is transported from the refrigeration compressor to the refrigerant storage tank, then transported to the refrigeration equipment through the refrigerant pump, and then returned to the refrigeration compressor from the refrigeration equipment;

[0023] 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 delivered from the refrigerant storage tank to the refrigeration equipment by the refrigerant pump, and then returned to the refrigerant storage tank by the refrigeration equipment.

[0024] Optionally, the ambient temperature is the ambient temperature of the refrigeration equipment or the ambient temperature of the refrigerant storage tank.

[0025] The present application discloses a control method based on a cooling system, which controls the cooling system to adopt different circulation modes according to the ambient temperature of the cooling equipment, so as to save power consumption and extend the life of the entire cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a cooling system according to an embodiment of the present application;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure of the refrigerant distribution device;

[0028] Figure 3 A block diagram of a cooling system control method.

[0029] The reference numerals in the figures are described as follows:

[0030] 100. Cooling system; 10. Refrigeration equipment; 20. Refrigeration compressor; 30. Refrigerant distribution device; 31. Refrigerant storage tank; 311. First outlet pipe; 312. Second outlet pipe; 313. Third outlet pipe; 314. First inlet pipe; 315. First control valve; 316. Second control valve; 317. Third control valve; 32. Refrigerant pump; 321. One-way valve. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] In one embodiment, Figure 1 and Figure 2 As shown, a cooling system 100 for adjusting the temperature of a refrigeration device 10 includes a refrigeration compressor 20 and a refrigerant distribution device 30 connected to the refrigeration device 10 to form a refrigerant circuit, wherein the refrigerant is output from the refrigeration compressor 20 and flows to the refrigeration device 10 through the refrigerant distribution device 30, and then returns from the refrigeration device 10 to the refrigeration compressor 20;

[0035] 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 also provided with a first inlet pipe 314 connected to the refrigeration compressor 20.

[0036] The refrigerant pump 32 has an inlet and an outlet relative to each other, wherein the first outlet pipe 311 and the second outlet pipe 312 are connected in parallel to the inlet, and the outlet is connected to the cooling device 10 .

[0037] The cooling system 100 circulates in the following manner according to the ambient temperature of the cooling device 10 or the refrigerant storage tank 31:

[0038] The first one is that when the ambient temperature reaches a first preset value, the refrigeration compressor 20 and the third control valve 317 are started, and the refrigerant pump 32, the first control valve 315 and the second control valve 316 are closed. The refrigerant is transported from the refrigeration compressor 20 to the refrigerant storage tank 31, and then flows to the refrigeration equipment 10 through the third outlet pipe 313, and then returns to the refrigeration compressor 20 from the refrigeration equipment 10; the refrigerant in the refrigerant storage tank 31 expands due to heat, and the refrigerant has a higher liquid level at this time, so the refrigerant can be transported to the refrigeration equipment 10 without providing power to the refrigerant, so as to save the power consumption of the cooling system 100.

[0039] The second type is that when the ambient temperature reaches the second preset value, the refrigeration compressor 20, the refrigerant pump 32 and the second control valve 316 are started, and the first control valve 315 and the third control valve 317 are closed. The refrigerant is transported from the refrigeration compressor 20 to the refrigerant storage tank 31, and then transported to the refrigeration equipment 10 through the refrigerant pump 32, and then returned to the refrigeration compressor 20 from the refrigeration equipment 10; at this time, the refrigerant pump 32 assists the refrigeration compressor 20 in running, so as to save the power consumption of the refrigeration compressor 20, reduce the condensing temperature, increase the cooling capacity, and improve the energy efficiency ratio.

[0040] The third type is that when the ambient temperature reaches the third preset value, the refrigerant pump 32 and the first control valve 315 are started, and the refrigeration compressor 20, the second control valve 316 and the third control valve 317 are closed. The refrigerant is delivered 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; the cooling system 100 uses the ambient temperature for cooling, thereby improving the energy efficiency ratio of the entire cooling system 100.

[0041] The cooling system 100 adopts different circulation modes according to the ambient temperature of the cooling device 10 to save power consumption and extend the life of the entire cooling system 100.

[0042] In this embodiment, the first preset value is greater than 20° C., the second preset value is 20° C. to 10° C., and the third preset value is less than 10° C. 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, which will not be elaborated here.

[0043] Furthermore, the refrigerant pump 32 is a fluorine pump.

[0044] 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 .

[0045] In another embodiment, when there are impurities in the refrigerant, the impurities will be deposited at the bottom of the refrigerant storage tank 31. In order to prevent the impurities from entering the pipeline, the inlets of the first outlet pipe 311, the second outlet pipe 312 and the third outlet pipe 313 are all located inside the refrigerant storage tank 31 and their heights decrease successively. When the cooling system 100 circulates in different modes, the first outlet pipe 311, the second outlet pipe 312 and the third outlet pipe 313 draw refrigerant close to the liquid surface to prevent impurities in the refrigerant storage tank 31 from entering the pipeline.

[0046] The approximate height of the liquid level in the refrigerant storage tank 31 is determined by observing whether the refrigerant flows out from the third outflow pipe 313. When the refrigerant flows out from the first outflow pipe 311 and the second outflow pipe 312, the refrigerant pump 32 is required to provide power. In order to prevent the refrigerant from flowing back into the refrigerant storage tank 31 from the third outflow pipe 313, 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.

[0047] In another embodiment, in the refrigerant storage tank 31, the liquid level of the refrigerant in different temperature ranges corresponds to a first liquid level height, a second liquid level height, and a third liquid level height;

[0048] The first liquid level only immerses the inlet of the first outlet pipe 311 , the second liquid level only immerses the inlet of the first outlet pipe 311 and the inlet of the second outlet pipe 312 , and the third liquid level immerses the inlets of the first outlet pipe 311 , the second outlet pipe 312 and the third outlet pipe 313 .

[0049] The same mass of refrigerant has different volumes at different temperatures. The first liquid level height, the second liquid level height, and the third liquid level height are not fixed values, but have certain intervals. In different intervals, the liquid level of the refrigerant immerses the corresponding inlet of the first outflow pipe 311, the inlet of the second outflow pipe 312, and the inlet of the third outflow pipe 313.

[0050] In this embodiment, the different temperature intervals are greater than 20° C., 20° C. to 10° C., and less than 10° C. Of course, in other embodiments, the different temperature intervals can 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 elaborated here.

[0051] 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 in the refrigerant storage tank 31 along the long axis.

[0052] Refrigerant storage tank 31 as attached Figure 2 Shown in the X direction.

[0053] The installation mode of the refrigerant storage tank 31 and the refrigerant pump 32 can be arranged relative to each other in space. Of course, the installation positions of the refrigerant storage tank 31 and the refrigerant pump 32 can also be adjusted according to actual needs.

[0054] In another embodiment, the outflow port is connected to the third outflow pipe 313 through a one-way valve 321 and is connected to the cooling device 10 .

[0055] The one-way 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 refrigeration device 10 through the third outflow pipe 313 .

[0056] In another embodiment, in order to further make the structure of the refrigerant distribution device 30 more compact, the cooling system 100 further includes an integrated component, and the integrated component is used to install the first control valve 315, the second control valve 316 and the third control valve.

[0057] The integrated component may be an integrated board or an integrated box.

[0058] See also Figure 3 , Figure 3 This is a block diagram of a control method based on the cooling system 100 in one embodiment of the present application.

[0059] The control method based on the cooling system 100 includes:

[0060] Detect ambient temperature;

[0061] When the ambient temperature reaches the 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, and the refrigerant is transported from the refrigeration compressor 20 to the refrigerant storage tank 31, and then flows to the refrigeration device 10 through the third outflow pipe 313, and then returns to the refrigeration compressor 20 from the refrigeration device 10;

[0062] When the ambient temperature reaches the 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, and the refrigerant is transported from the refrigeration compressor 20 to the refrigerant storage tank 31, and then transported to the refrigeration device 10 through the refrigerant pump 32, and then returned to the refrigeration compressor 20 from the refrigeration device 10;

[0063] 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 delivered 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.

[0064] According to the ambient temperature of the cooling device 10 , the cooling system 100 is controlled to adopt different circulation modes to save power consumption and extend the life of the entire cooling system 100 .

[0065] In another embodiment, the first preset value is that the ambient temperature is greater than 20° C., the second preset value is 20° C. to 10° C., and the third preset value is less than 10° C. 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, which will not be elaborated here.

[0066] In another embodiment, the ambient temperature is the ambient temperature of the refrigeration device 10 or the ambient temperature of the refrigerant storage tank 31. Of course, the ambient temperature may also be the indoor or outdoor temperature.

[0067] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0068] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A cooling system for regulating the temperature of a cooling device, characterized in that: It includes a refrigeration compressor and a refrigerant distribution device connected to the refrigeration equipment to form a refrigerant circuit, wherein the refrigerant is output from the refrigeration compressor and flows to the refrigeration equipment through the refrigerant distribution device, and then returns to the refrigeration compressor from the refrigeration equipment; 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 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 connected to a refrigeration compressor; The refrigerant pump has an inlet and an outlet relative to each other, wherein the first outlet pipe and the second outlet pipe are connected in parallel to the inlet, and the outlet is connected to the cooling device; 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; The inlets of the first outflow pipe, the second outflow pipe and the third outflow pipe are all located inside the refrigerant storage tank and their heights decrease successively.

2. The cooling system according to claim 1, characterized in that: 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 immerses the inlet of the first outflow pipe, the second liquid level height only immerses the inlet of the first outflow pipe and the inlet of the second outflow pipe, and the third liquid level height immerses the inlets of the first outflow pipe, the second outflow pipe and the third outflow pipe.

3. The cooling system according to claim 2, characterized in that: The different temperature intervals are greater than 20°C, 20°C to 10°C, and less than 10°C.

4. The cooling system according to claim 3, characterized in that: 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.

5. The cooling system according to claim 1, characterized in that: The outflow port is connected to the third outflow pipe through a one-way valve and is connected to the cooling device.

6. The cooling system according to claim 1, characterized in that: The cooling system further comprises an integrated component for mounting the first control valve, the second control valve and the third control valve.

7. The control method of the cooling system according to any one of claims 1 to 6, characterized in that: The control method comprises: Detect ambient temperature; When the ambient temperature reaches a first preset value, the refrigeration compressor and the third control valve are started, the refrigerant pump, the first control valve and the second control valve are closed, and the refrigerant is transported from the refrigeration compressor to the refrigerant storage tank, then flows to the refrigeration device through the third outflow pipe, and then returns to the refrigeration compressor from the refrigeration device; When the ambient temperature reaches a second preset value, the refrigeration compressor, the refrigerant pump and the second control valve are started, the first control valve and the third control valve are closed, and the refrigerant is transported from the refrigeration compressor to the refrigerant storage tank, then transported to the refrigeration equipment through the refrigerant pump, and then returned to the refrigeration compressor from the refrigeration equipment; 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 delivered from the refrigerant storage tank to the refrigeration equipment by the refrigerant pump, and then returned to the refrigerant storage tank by the refrigeration equipment.

8. The control method based on the cooling system according to claim 7, characterized in that: The ambient temperature is the ambient temperature of the refrigeration equipment or the ambient temperature of the refrigerant storage tank.

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