Technical realization requirements for refrigerant control system and cooling system

Technical realization elements:

6. Technical issues

7. Here, as in the above-mentioned device of Patent Document 1, as described above, since the expansion tank is only used to collect the refrigerant flowing out of the suction side pipe of the low-source side compressor, the size of the expansion tank is increased. For example, when trying to increase the amount of refrigerant stored in the expansion tank, the installation cost of the expansion tank will be too high. Accordingly, there is still room for improvement by increasing the storage capacity of refrigerant in a compact storage section (such as an expansion tank).

8. In view of the above-mentioned circumstances, the present invention is made. The purpose of the present invention is to provide a refrigerant control system and a cooling system, which can increase the storage capacity of refrigerant in a compact size storage area.

9. The way to solve the problem

10. In order to solve the above problems and achieve the purpose of the present invention, a refrigerant control system as claimed in claim 1 is used to control the flow of a refrigerant in a circulating flow path, which is connected to a compression zone and circulates The refrigerant compressed by the compression zone causes the refrigerant to exchange heat with a cooling body, the refrigerant control system, the refrigerant control system includes: a storage area, the storage area stores the refrigerant; a first The pipeline is connected to an outlet side pipe constituting the circulation flow path and is located on an outlet side of the compression zone, so that the refrigerant in the outlet side pipe flows into the storage area through the first pipeline; a second pipeline , Connected to an inlet side pipe constituting the circulating flow path and located at an inlet side of the compression zone, so that the refrigerant in the storage area flows into the inlet side pipe through the second pipeline; a third pipeline is connected The inlet side pipe is formed so that the heat of the third pipe is lower than the heat of the outlet side pipe, thereby allowing the heat to be transferred to the refrigerant in the storage area; a first on-off valve is arranged in the first pipe Way, by switching the first on-off valve to allow the refrigerant from the outlet side pipe to flow into the storage

Zone; a second on-off valve, arranged in the second pipeline, by switching the second on-off valve to allow the refrigerant in the storage area to flow into the inlet side pipe; a third on-off valve, arranged in the third pipeline , By switching the third on-off valve to allow the refrigerant in an upstream part of the third pipeline associated with the storage area to flow into the part of the third pipeline located on the side of the storage area; and, a switch control area , Controlling to open or close the first on-off valve, the second on-off valve and the third on-off valve according to a set temperature of the cooling body.

11. The refrigerant control system of claim 2, the refrigerant control system of claim 1, wherein when the set temperature of the cooling body is higher than a critical temperature of the refrigerant, the switch control zone Open the first on-off valve and the third on-off valve, and close the second on-off valve; when the set temperature of the cooling body is lower than the critical temperature of the refrigerant, close the first on-off valve and the first on-off valve Three on-off valves, and open the second on-off valve.

12. The refrigerant control system of claim 3, the refrigerant control system of claim 2, wherein at least when an operating pressure value of the compression zone obtained by a predetermined method is higher than a threshold, or the cooling body When the set temperature of the refrigerant is higher than the critical temperature of the refrigerant, the switch control zone opens the first switch valve and the third switch valve, and closes the second switch valve; at least when the compression is obtained by the predetermined method When an operating pressure value of the zone is lower than the threshold, or the set temperature of the cooling body is lower than the critical temperature of the refrigerant, the first switch valve and the third switch valve are closed, and the second switch is opened valve.

13. The refrigerant control system of claim 4, the refrigerant control system of any one of claims 1 to 3, further comprising: a fourth pipe connected to the outlet side pipe, which forms a The heat of the fourth pipe is higher than the heat of the third pipe, thereby allowing the heat to be transferred to the refrigerant in the storage area; The fourth on-off valve allows the refrigerant in an upstream part associated with the storage area in the fourth pipeline to flow into the part on the side of the storage area of the fourth pipeline; wherein the switch control area, The first on-off valve, the second on-off valve, the third on-off valve and the fourth on-off valve are controlled to be opened or closed according to the set temperature of the cooling body.

14. The refrigerant control system of claim 5, the refrigerant control system of claim 4, wherein when the set temperature of the cooling body is higher than the critical temperature of the refrigerant, the switch control zone Open the first on-off valve and the third on-off valve, and close the second on-off valve and the fourth on-off valve; when the set temperature of the cooling body is lower than the critical temperature of the refrigerant, the first on-off valve is closed A switch valve and the third switch valve, and open the second switch valve and the fourth switch valve.

15. The refrigerant control system of claim 6, the refrigerant control system of any one of claims 1 to 5, wherein by forming a first sub-pipe and a second sub-pipe, the The refrigerant in the storage part flows into the outlet side pipe or the inlet side pipe through the first sub-pipe and the second sub-pipe in a reverse direction, and the parts of the first sub-pipe and the second sub-pipe are located above other parts.

16. The refrigerant control system of claim 7, the refrigerant control system of any one of claims 1 to 6, further comprising an inflow prevention zone for preventing foreign matter from passing through the first pipeline Flow into the storage area.

17. The refrigerant control system of claim 8, the refrigerant control system of any one of claims 1 to 7, further comprising a temperature adjustment area, the temperature adjustment area adjusting the storage area A temperature of the refrigerant.

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