Condenser tank, refrigerant purification system, and refrigerant purification method

Abstract

The application relates to a condensing tank, a refrigerant purification system and method, device, computer equipment, storage medium and computer program product. The condensing tank comprises a condensing tank gas collecting port, a condensing pipe, a refrigerant backflow port and a condensing tank exhaust port; the condensing tank gas collecting port is connected with a gas collecting port of a condenser, a first pipe port of the condensing pipe is connected with a liquid collecting port of the condenser, the liquid collecting port is arranged in a liquid refrigerant layer of the condenser, a second pipe port of the condensing pipe and the refrigerant backflow port are connected with a liquid refrigerant recovery unit respectively, and the condensing tank exhaust port is connected with a non-condensable gas exhaust unit. The condensing pipe can be used for separating mixed gas in the condenser at low cost and high efficiency and purifying refrigerant in a gaseous refrigerant layer of the condenser.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and in particular to a condenser, a refrigerant purification system, and a refrigerant purification method, apparatus, computer equipment, storage medium, and computer program product. Background Technology

[0002] Chillers are the cooling source for refrigeration equipment. When operating, chillers on the market operate at a pressure lower than atmospheric pressure, creating a low-pressure zone inside the unit. This low-pressure zone allows non-condensable gases, such as air, to enter the chiller. For example, they may enter the gaseous refrigerant layer at the top of the condenser, mixing with the refrigerant and forming a mixed gas layer (the refrigerant inside the condenser can be divided into three layers from top to bottom: a gaseous refrigerant layer, a gas-liquid mixed refrigerant layer, and a liquid refrigerant layer). As more and more non-condensable gases enter the condenser, its condensing capacity decreases, affecting the cooling effect of the refrigeration equipment.

[0003] Traditional technologies typically require costly specialized equipment and multiple processes to separate the mixed gas in the condenser. Therefore, there is an urgent need for a low-cost and efficient device that can separate the mixed gas in the condenser and purify the refrigerant in the gaseous refrigerant layer of the condenser. Summary of the Invention

[0004] Therefore, it is necessary to address the aforementioned technical problem of requiring significant costs and multiple processes to separate the mixed gas in the condenser by providing a condenser tank, a refrigerant purification system, and a refrigerant purification method, apparatus, computer equipment, computer-readable storage medium, and computer program product.

[0005] In one aspect, this application provides a condenser, including a condenser gas collection port, a condenser pipe, a refrigerant return port, and a condenser exhaust port;

[0006] The condenser tank's gas collection port is connected to the condenser's gas intake port. The first port of the condenser tube is connected to the condenser's liquid intake port, which is located in the liquid refrigerant layer of the condenser. The second port of the condenser tube and the refrigerant return port are respectively connected to the liquid refrigerant recovery unit. The condenser tank's exhaust port is connected to the non-condensable gas exhaust unit.

[0007] The condenser tank's gas collection port is used to collect the mixed gas in the condenser, which includes gaseous refrigerant and non-condensable gases;

[0008] Condenser tubes are used to condense the gaseous refrigerant in the condenser tank into liquid refrigerant, thus separating the gaseous refrigerant and non-condensable gases in the condenser tank.

[0009] The refrigerant return port is used to export the liquid refrigerant that has been condensed and deposited at the bottom of the condenser to the liquid refrigerant recovery unit;

[0010] The condenser exhaust port is used to discharge the separated non-condensable gases to the non-condensable gas discharge unit.

[0011] In one embodiment, the gas collection port of the condenser is connected to the gas intake port of the condenser via a first solenoid valve, so as to connect to the gaseous refrigerant layer at the top of the condenser, in which a mixed gas is accumulated.

[0012] In one embodiment, the first port of the condenser tube is connected to the liquid outlet of the condenser via an expansion valve and a second solenoid valve.

[0013] In one embodiment, the condenser further includes:

[0014] The casing has a refrigerant return port at the bottom.

[0015] A partition divides the shell into a first space and a second space that are connected at the bottom. The condenser gas collection port is located at the top of the first space, and the condenser exhaust port is located at the top of the second space.

[0016] The condenser tube passes through the partition and runs through the first space and the second space; the gaseous refrigerant collected by the condenser tank's gas collection port is condensed by the condenser tube and deposited at the bottom of the shell; the non-condensable gas collected by the condenser tank's gas collection port passes through the first space and the second space and is discharged from the condenser tank's exhaust port.

[0017] In one embodiment, the condenser further includes:

[0018] A gas-liquid separation plate is located at the top of the second space and below the exhaust port of the condenser tank. It is used to separate non-condensable gases and the liquid refrigerant carried in the non-condensable gases.

[0019] In one embodiment, the condenser further includes:

[0020] The fins are provided in the first space and the second space respectively.

[0021] The aforementioned condenser includes a condenser gas collection port, a condenser tube, a refrigerant return port, and a condenser exhaust port. The condenser gas collection port is connected to the condenser's gas inlet, allowing the condenser to collect the mixed gas (including gaseous refrigerant and non-condensable gases) within the condenser. Furthermore, the first port of the condenser tube is connected to the condenser's liquid inlet, which is located within the liquid refrigerant layer of the condenser. This allows the condenser tube to introduce liquid refrigerant from the condenser as a cold source, thereby condensing the gaseous refrigerant in the condenser into liquid refrigerant, separating the gaseous refrigerant and non-condensable gases within the condenser. The second port of the condenser tube and the refrigerant return port are respectively connected to a liquid refrigerant recovery unit, allowing the liquid refrigerant recovery unit to recover the liquid refrigerant within the condenser tube through the second port and to recover the liquid refrigerant deposited at the bottom of the condenser after condensation through the refrigerant return port. Furthermore, the condenser tank exhaust port is connected to the non-condensable gas exhaust unit, allowing the non-condensable gas exhaust unit to export the separated non-condensable gas from the condenser tank through the condenser tank exhaust port, thereby discharging the non-condensable gas. Using the aforementioned condenser tank eliminates the need for additional costs to introduce refrigerant into the condenser tubes and avoids multiple process steps. The mixed gas collected from the condenser can be conveniently and efficiently separated through the condenser tubes. It also allows for the recovery of the liquid refrigerant within the condenser tubes and the liquid refrigerant obtained through condensation and liquefaction, while discharging the separated non-condensable gas. This enables low-cost and efficient separation of the mixed gas within the condenser, purifying the refrigerant in the gaseous refrigerant layer of the condenser.

[0022] Secondly, this application provides a refrigerant purification system, including a condenser, a liquid refrigerant recovery unit, and the aforementioned condenser tank;

[0023] The top of the condenser is equipped with a return gas port, which is connected to a liquid refrigerant recovery unit. The liquid refrigerant recovery unit is used to recover the liquid refrigerant discharged from the refrigerant return port of the condenser tank, as well as the liquid refrigerant in the condenser tubes of the condenser tank, and converts the recovered liquid refrigerant into gaseous refrigerant, so that the converted gaseous refrigerant flows back to the return gas port and enters the gaseous refrigerant layer of the condenser.

[0024] In one embodiment, the liquid refrigerant recovery unit includes an evaporator;

[0025] The evaporator is equipped with a first liquid supply port, a second liquid supply port, and an evaporation port. The first liquid supply port is connected to the refrigerant return port, the second liquid supply port is connected to the second port of the condenser tube, and the evaporation port is connected to the gas return port.

[0026] In one embodiment, the liquid refrigerant recovery unit further includes a compressor disposed between the evaporator port and the return port.

[0027] In one embodiment, the refrigerant purification system further includes a non-condensable gas discharge unit for discharging non-condensable gases discharged from the condenser exhaust port of the condenser tank.

[0028] In one embodiment, the non-condensable gas exhaust unit includes a gas tank and a vacuum pump;

[0029] The gas tank includes a gas tank inlet and a gas tank outlet. The gas tank inlet is connected to the condenser outlet of the condenser tank via a third solenoid valve, and the gas tank outlet is connected to the vacuum pump via a fourth solenoid valve.

[0030] In one embodiment, the gas tank also includes a pressure sensor for detecting the gas pressure inside the gas tank;

[0031] When the gas pressure inside the gas tank rises to the first gas pressure threshold, the third solenoid valve closes, the fourth solenoid valve opens, and the vacuum pump starts to run.

[0032] When the gas pressure inside the gas tank drops to the second gas pressure threshold, the third solenoid valve opens and the fourth solenoid valve closes, stopping the vacuum pump.

[0033] The aforementioned refrigerant purification system includes a condenser, a liquid refrigerant recovery unit, and the aforementioned condenser tank. The top of the condenser is equipped with a return gas port, which is connected to the liquid refrigerant recovery unit. The liquid refrigerant recovery unit recovers the liquid refrigerant discharged from the refrigerant return port of the condenser tank, as well as the liquid refrigerant inside the condenser tubes of the condenser tank. It converts the recovered liquid refrigerant into gaseous refrigerant, allowing the converted gaseous refrigerant to flow back to the return gas port and enter the gaseous refrigerant layer of the condenser. Using this refrigerant purification system eliminates the need for additional costs to introduce refrigerant into the condenser tubes of the condenser tank, and avoids multiple process steps. The mixed gas collected from the condenser can be conveniently and efficiently separated through the condenser tubes. It can also recover the liquid refrigerant inside the condenser tubes and the liquid refrigerant obtained through condensation and liquefaction separation. This achieves low-cost and efficient separation of the mixed gas within the condenser, purifying the refrigerant in the gaseous refrigerant layer of the condenser.

[0034] Thirdly, this application provides a refrigerant purification method, applicable to a refrigerant purification system including a condenser, a condensate tank, a liquid refrigerant recovery unit, and a non-condensable gas discharge unit. The refrigerant purification method includes:

[0035] When a refrigerant purification command is received, the mixed gas in the condenser is controlled to flow from the gas inlet of the condenser into the gas collection port of the condenser tank, and the liquid refrigerant in the condenser is controlled to be injected from the liquid inlet of the condenser into the first port of the condenser tube in the condenser tank, so that the condenser tube condenses the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas.

[0036] The liquid refrigerant recovery unit controls the conversion of liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second port of the condenser tube into gaseous refrigerant, and injects the converted gaseous refrigerant into the return port of the condenser.

[0037] The non-condensable gas discharge unit controls the discharge of non-condensable gases from the condensate tank exhaust port.

[0038] In one embodiment, the liquid refrigerant recovery unit includes an evaporator and a compressor;

[0039] The liquid refrigerant recovery unit controls the conversion of liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second inlet of the condenser tube into gaseous refrigerant, and injects the converted gaseous refrigerant into the gas return port of the condenser, including:

[0040] The evaporator is controlled to convert the liquid refrigerant recovered from the refrigerant return port of the condenser and the second port of the condenser tube into gaseous refrigerant.

[0041] The compressor is controlled to inject the converted gaseous refrigerant into the return port of the condenser.

[0042] In one embodiment, the non-condensable gas exhaust unit includes a gas tank and a vacuum pump;

[0043] The unit controlling the discharge of non-condensable gases will discharge the non-condensable gases from the condensate tank exhaust port, including:

[0044] If the gas pressure in the gas tank does not reach the first gas pressure threshold, the non-condensable gas separated from the condenser will be discharged from the condenser exhaust port of the condenser back into the gas tank.

[0045] If the gas pressure inside the gas tank reaches the first gas pressure threshold, control to stop exporting non-condensable gas to the gas tank, and control the vacuum pump to discharge the non-condensable gas from the gas tank until the gas pressure inside the gas tank drops to the second gas pressure threshold. Then control to stop exporting the non-condensable gas from the gas tank, and control to export the non-condensable gas separated from the condenser from the condenser exhaust port to the gas tank.

[0046] Fourthly, this application also provides a refrigerant purification device, applied to a refrigerant purification system including a condenser, a condensate tank, a liquid refrigerant recovery unit, and a non-condensable gas discharge unit. The refrigerant purification device includes:

[0047] The refrigerant purification command response module is used to control the mixed gas in the condenser to flow from the gas inlet of the condenser into the gas collection port of the condenser tank when a refrigerant purification command is received, and to control the liquid refrigerant in the condenser to be injected from the liquid inlet of the condenser into the first port of the condenser tube in the condenser tank, so that the condenser tube condenses the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas.

[0048] The refrigerant recovery unit control module is used to control the liquid refrigerant recovery unit, which converts the liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second pipe port of the condenser tube into gaseous refrigerant, and injects the converted gaseous refrigerant into the gas return port of the condenser.

[0049] The exhaust unit control module is used to control the non-condensable gas exhaust unit, which discharges the non-condensable gas exported from the condenser exhaust port of the condenser tank.

[0050] Fifthly, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to perform the following steps:

[0051] When a refrigerant purification command is received, the mixed gas in the condenser is controlled to flow from the gas inlet of the condenser into the gas collection port of the condenser tank, and the liquid refrigerant in the condenser is controlled to be injected from the liquid inlet of the condenser into the first port of the condenser tube in the condenser tank, so that the condenser tube condenses the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas.

[0052] The liquid refrigerant recovery unit controls the conversion of liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second port of the condenser tube into gaseous refrigerant, and injects the converted gaseous refrigerant into the return port of the condenser.

[0053] The non-condensable gas discharge unit controls the discharge of non-condensable gases from the condensate tank exhaust port.

[0054] Sixthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, performs the following steps:

[0055] When a refrigerant purification command is received, the mixed gas in the condenser is controlled to flow from the gas inlet of the condenser into the gas collection port of the condenser tank, and the liquid refrigerant in the condenser is controlled to be injected from the liquid inlet of the condenser into the first port of the condenser tube in the condenser tank, so that the condenser tube condenses the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas.

[0056] The liquid refrigerant recovery unit controls the conversion of liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second port of the condenser tube into gaseous refrigerant, and injects the converted gaseous refrigerant into the return port of the condenser.

[0057] The non-condensable gas discharge unit controls the discharge of non-condensable gases from the condensate tank exhaust port.

[0058] Seventhly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, performs the following steps:

[0059] When a refrigerant purification command is received, the mixed gas in the condenser is controlled to flow from the gas inlet of the condenser into the gas collection port of the condenser tank, and the liquid refrigerant in the condenser is controlled to be injected from the liquid inlet of the condenser into the first port of the condenser tube in the condenser tank, so that the condenser tube condenses the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas.

[0060] The liquid refrigerant recovery unit controls the conversion of liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second port of the condenser tube into gaseous refrigerant, and injects the converted gaseous refrigerant into the return port of the condenser.

[0061] The non-condensable gas discharge unit controls the discharge of non-condensable gases from the condensate tank exhaust port.

[0062] The aforementioned refrigerant purification method, apparatus, computer equipment, storage medium, and computer program product, upon receiving a refrigerant purification command, control the mixed gas in the condenser to flow from the condenser's gas inlet into the condenser tank's gas collection port, and control the injection of liquid refrigerant from the condenser's liquid inlet into the first port of the condenser tube in the condenser tank, without the need for additional cost to introduce refrigerant into the condenser tube. This allows the condenser tube to condense the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gases from the mixed gas. Furthermore, a liquid refrigerant recovery unit can be controlled to convert the liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second port of the condenser tube into gaseous refrigerant, and inject the converted gaseous refrigerant into the condenser's gas return port, realizing the recovery and utilization of the condensed liquid refrigerant and the liquid refrigerant in the condenser tube. A non-condensable gas discharge unit can also be controlled to discharge the non-condensable gases discharged from the condenser tank's exhaust port. Using the above-mentioned refrigerant purification method, there is no need to spend extra costs to introduce refrigerant into the condenser tube, and there is no need to go through multiple processes. The mixed gas collected from the condenser can be separated conveniently and efficiently through the condenser tube. It can also recover the liquid refrigerant inside the condenser tube and the liquid refrigerant obtained by condensation and liquefaction separation, and discharge the separated non-condensable gas. It can achieve low-cost and high-efficiency separation of mixed gas in the condenser and purification of refrigerant in the gaseous refrigerant layer of the condenser. Attached Figure Description

[0063] Figure 1 This is a schematic diagram of the condenser structure and application environment in one embodiment;

[0064] Figure 2 This is a schematic diagram of the application environment of a condenser tank including a first solenoid valve in one embodiment;

[0065] Figure 3 This is a schematic diagram of an application environment for a condenser tank, including an expansion valve and a second solenoid valve, in one embodiment.

[0066] Figure 4 This is a schematic diagram of the application environment of a condenser tank including an expansion valve and a second solenoid valve in another embodiment;

[0067] Figure 5 This is a schematic diagram of a condenser tank structure including a partition in one embodiment;

[0068] Figure 6 This is a schematic diagram of a condenser tank structure including a gas-liquid separation plate in one embodiment;

[0069] Figure 7 This is a schematic diagram of a condenser tank structure including fins in one embodiment;

[0070] Figure 8 This is a schematic diagram of the refrigerant purification system in one embodiment;

[0071] Figure 9 This is a schematic diagram of a refrigerant purification system including an evaporator in one embodiment.

[0072] Figure 10 This is a schematic diagram of a refrigerant purification system including a compressor in one embodiment;

[0073] Figure 11 This is a schematic diagram of a refrigerant purification system including a non-condensable gas exhaust unit in one embodiment;

[0074] Figure 12 This is a schematic diagram of a refrigerant purification system including a gas tank and a vacuum pump in one embodiment;

[0075] Figure 13 This is a schematic diagram of a refrigerant purification system including a pressure sensor in one embodiment;

[0076] Figure 14 This is a schematic diagram of a refrigerant purification method in one embodiment;

[0077] Figure 15 This is a schematic diagram of the refrigerant purification method in another embodiment;

[0078] Figure 16 This is a structural block diagram of a refrigerant purification device in one embodiment;

[0079] Figure 17 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0080] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0081] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application and in its specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0082] It should be understood that in this application, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "installed," "connected," "linked," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements or an interaction between two elements, unless otherwise explicitly defined. When an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0083] To achieve low-cost and efficient separation of mixed gases within a condenser and purification of the refrigerant in the gaseous refrigerant layer of the condenser, embodiments of this application provide a condenser tank, its structure, and its application environment, which can be specifically described as follows: Figure 1 As shown, where:

[0084] The condenser tank 1 includes a condenser tank gas collection port 10, a condenser pipe 11, a refrigerant return port 12, and a condenser tank exhaust port 13;

[0085] The condenser tank gas collection port 10 is connected to the gas intake port 20 of the condenser 2. The first pipe port 111 of the condenser pipe 11 is connected to the liquid intake port 21 of the condenser 2. The liquid intake port 21 is located in the liquid refrigerant layer of the condenser 2. The second pipe port 112 and the refrigerant return port 12 of the condenser pipe 11 are respectively connected to the liquid refrigerant recovery unit 3. The condenser tank exhaust port 13 is connected to the non-condensable gas exhaust unit 4.

[0086] The condenser gas collection port 10 is used to collect the mixed gas in the condenser 2, which includes gaseous refrigerant and non-condensable gas;

[0087] The condenser tube 11 is used to condense the gaseous refrigerant in the condenser tank 1 into liquid refrigerant, thereby separating the gaseous refrigerant and non-condensable gas in the condenser tank 1.

[0088] The refrigerant return port 12 is used to export the liquid refrigerant that has been condensed and deposited at the bottom of the condenser tank 1 to the liquid refrigerant recovery unit 3;

[0089] The condenser exhaust port 13 is used to discharge the separated non-condensable gases to the non-condensable gas discharge unit 4.

[0090] Condensate tank 1 includes, but is not limited to, Figure 1 The shape shown can be a cuboid, cube, cylinder, etc., and the specific shape can be designed based on factors such as installation space and ease of maintenance, so that the condenser tank 1 has a certain volume and can be installed through the shell of the condenser tank 1 to install the condenser pipe 11. The condenser tank gas collection port 10, refrigerant return port 12, condenser tank exhaust port 13, and the first pipe 111 and the second pipe 112 of the condenser pipe 11 all have good sealing performance and can be connected to external pipes to transfer fluid. The first pipe 111 and the second pipe 112 of the condenser pipe 11 both penetrate the outer shell of the condenser tank 1 (provided that the sealing performance of the condenser tank 1 is not compromised) so that the condenser pipe 11 can transfer liquid refrigerant to the outside.

[0091] The condenser 2 is a crucial component of the chiller unit, responsible for refrigeration using refrigerant, a substance that continuously circulates within the refrigeration equipment and achieves cooling through changes in its state. The refrigerant in the condenser 2 consists of three layers: an uppermost gaseous refrigerant layer, a middle gas-liquid mixed refrigerant layer, and a bottom liquid refrigerant layer. When non-condensable gases enter the condenser 2, they accumulate in the gaseous refrigerant layer, mixing with the gaseous refrigerant to form a mixed gas, affecting the condenser 2's performance. The liquid refrigerant recovery unit 3 can recover the liquid refrigerant deposited at the bottom of the condenser tank 1 through the refrigerant return port 12, and can also recover the liquid refrigerant within the condenser tube 11 through the second port 112, improving refrigerant utilization. The non-condensable gas discharge unit 4 can discharge the non-condensable gases separated from the condenser tank 1 through the condenser tank exhaust port 13.

[0092] Specifically, in this embodiment, a gas inlet 20 is provided at the top of the condenser 2, so that the gas collection port 10 of the condenser tank is connected to the gaseous refrigerant layer at the top of the condenser 2 through the gas inlet 20. This allows the mixed gas accumulated in the gaseous refrigerant layer to flow into the condenser tank 1, so that the condenser tube 11 in the condenser tank 1 can condense and liquefy the gaseous refrigerant in the mixed gas. A liquid outlet 21 is provided on the side wall of the liquid refrigerant layer of the condenser 2, and the first pipe port 111 of the condenser tube 11 is connected to the liquid outlet 21 of the condenser 2. This allows the liquid refrigerant in the condenser 2 to be conveniently introduced into the condenser tube 11 as the refrigerant for the condenser tube 11, without the need for additional costs to introduce refrigerant into the condenser tube 11 in the condenser tank 1. This structure for introducing refrigerant into the condenser tube 11 is simple and effective. Furthermore, in this embodiment, the refrigerant return port 12 of the condenser tank 1 and the second port 112 of the condenser pipe 11 are both connected to the liquid refrigerant recovery unit 3. The liquid refrigerant recovery unit 3 can then be used to recover and reuse the refrigerant, for example, by re-injecting the recovered refrigerant into the condenser 2 or for other purposes. In this embodiment, the non-condensable gases that have not been liquefied and separated in the condenser tank 1 can also be discharged to the non-condensable gas discharge unit 4 through the condenser tank exhaust port 13, thereby removing the non-condensable gases.

[0093] The aforementioned condenser tank 1 includes a condenser tank gas collection port 10, a condenser pipe 11, a refrigerant return port 12, and a condenser tank exhaust port 13. The condenser tank gas collection port 10 is connected to the gas inlet 20 of the condenser 2, allowing the condenser tank 1 to collect the mixed gas (including gaseous refrigerant and non-condensable gas) inside the condenser 2 through the condenser tank gas collection port 10. Furthermore, the first port 111 of the condenser pipe 11 is connected to the liquid outlet 21 of the condenser 2, and the liquid outlet 21 is located in the liquid refrigerant layer of the condenser 2, allowing the condenser pipe 11 to introduce liquid refrigerant from the condenser 2 as a refrigerant, thereby condensing the gaseous refrigerant in the condenser tank 1 into liquid refrigerant, and separating the gaseous refrigerant and non-condensable gas inside the condenser tank 1. The second port 111 and the refrigerant return port 12 are respectively connected to the liquid refrigerant recovery unit 3, allowing the liquid refrigerant recovery unit 3 to recover the liquid refrigerant in the condenser tube 11 through the second port 112 and to recover the liquid refrigerant deposited at the bottom of the condenser tank 1 after condensation through the refrigerant return port 12. Furthermore, the condenser tank exhaust port 13 is connected to the non-condensable gas exhaust unit 4, allowing the non-condensable gas exhaust unit 4 to discharge the non-condensable gas separated from the condenser tank 1 through the condenser tank exhaust port 13. Using the aforementioned condenser tank 1 eliminates the need for additional costs to introduce refrigerant into the condenser tube 11 and avoids multiple process steps. The mixed gas collected from the condenser 2 can be conveniently and efficiently separated through the condenser tube 11. It also allows for the recovery of the liquid refrigerant within the condenser tube 11 and the liquid refrigerant obtained through condensation and liquefaction, and the discharge of the separated non-condensable gas. This enables low-cost and efficient separation of the mixed gas within the condenser 2 and purification of the refrigerant in the gaseous refrigerant layer of the condenser 2.

[0094] In one embodiment, Figure 1 Based on the application environment shown, such as Figure 2 As shown, the gas collection port 10 of the condenser tank is connected to the gas intake port 20 of the condenser 2 through the first solenoid valve 5, so as to connect to the gaseous refrigerant layer at the top of the condenser 2, in which a mixed gas is accumulated.

[0095] Among them, a solenoid valve is an automated component that can control the opening and closing of pipelines through electromagnetic force.

[0096] For example, when the first solenoid valve 5 is turned on, the mixed gas in the gaseous refrigerant layer at the top of the condenser 2 can flow out from the gas inlet 20 along the pipeline, pass through the first solenoid valve 5, and flow to the condenser gas collection port 10 of the condenser tank 1, thereby flowing into the condenser tank 1.

[0097] It should be noted that in scenarios where the gas pressure in the gaseous refrigerant layer of condenser 2 is too high, the gas (which can be a mixture of gases or only gaseous refrigerant) in the gaseous refrigerant layer can be conveniently and quickly released into the condenser tank 1 by opening the first solenoid valve 5. This unloads the condenser 2 and prevents excessive pressure in the gaseous refrigerant layer of condenser 2. That is, the condenser tank 1 can serve the dual purpose of purifying the refrigerant in condenser 2 and unloading the refrigerant from condenser 2, and both the purification and unloading functions can be achieved by controlling the opening of the first solenoid valve 5.

[0098] In this embodiment, the conduction of the first solenoid valve 5 can be controlled to purify or unload the refrigerant in the gaseous refrigerant layer of the condenser 2, which is beneficial to improving the refrigeration effect of the refrigeration equipment and ensuring the operating performance and safety of the refrigeration equipment.

[0099] In one possible implementation, Figure 2 Based on the application environment of the condenser shown, such as Figure 3 As shown, the first port 111 of the condenser tube 11 can be connected to the second solenoid valve 7 via the expansion valve 6, and the second solenoid valve 7 is connected to the liquid outlet 21 of the condenser 2, or, as... Figure 4 As shown, the first port 111 of the condenser 11 is connected to the expansion valve 6 through the second solenoid valve 7, and the expansion valve 6 is connected to the liquid outlet 21 of the condenser 2.

[0100] Among them, the expansion valve 6 has the functions of throttling and pressure reduction and flow regulation. It can control the flow rate of liquid refrigerant by changing the cross-sectional area of ​​the channel.

[0101] For example, when the second solenoid valve 7 is in the open state, the liquid refrigerant in the condenser 2 can flow out from the liquid outlet 21 of the condenser 2, pass through the expansion valve 6 and the second solenoid valve 7, and flow into the first port 111 of the condenser tube 11 without the need to introduce other refrigerant into the condenser tube 11. When the second solenoid valve 7 is in the closed state, the liquid refrigerant in the condenser 2 will not be able to flow into the condenser tube 11.

[0102] In this embodiment, the expansion valve 6 and the second solenoid valve 7 can be used to control whether liquid refrigerant is injected into the condenser tube 11, which enables the secondary use of the refrigerant in the condenser 2, thereby making low-cost and efficient use of the condenser tube 11 with injected liquid refrigerant to separate the mixed gas.

[0103] In some embodiments, such as Figure 5 As shown, in Figure 1 Based on the condenser 1 shown, a schematic diagram of a condenser structure including a baffle is provided, wherein the condenser 1 further includes:

[0104] The housing 14 has a refrigerant return port 12 at its bottom;

[0105] The partition 15 divides the shell 14 into a first space and a second space that are connected at the bottom. The condenser gas collection port 10 is located at the top of the first space, and the condenser exhaust port 13 is located at the top of the second space.

[0106] The condenser tube 11 passes through the partition 15 and runs through the first space and the second space; the gaseous refrigerant collected by the condenser tank gas collecting port 10 is condensed by the condenser tube 11 and deposited at the bottom of the shell 14; the non-condensable gas collected by the condenser tank gas collecting port 10 passes through the first space and the second space and is discharged from the condenser tank exhaust port 13.

[0107] The liquid refrigerant deposited at the bottom of the shell 14 can form Figure 5 The liquid collection area 16 is shown.

[0108] For example, to make Figure 5 The condenser 1 shown is used for Figure 4Taking the condenser tank application environment as an example, when a refrigerant purification command is received, both the first solenoid valve 5 and the second solenoid valve 7 are activated. The mixed gas at the top of the condenser 2 can flow through the pipeline, via the first solenoid valve 5, into the condenser tank gas collection port 10 of the condenser tank 1, and into the area where the condenser tube 11 is located in the first space. During the process of passing through the first space, under the action of the condenser tube 11, at least a portion of the gaseous refrigerant in the mixed gas liquefies upon cooling, transforming into liquid refrigerant, and is deposited in the liquid collection area 16 at the bottom of the condenser tank 1. The non-condensable gas does not liquefy upon cooling (the state of the non-condensable gas itself is not easily affected by temperature). The non-condensable gas and a small amount of unliquefied gaseous refrigerant can pass through the space above the first space and the liquid collection area, and enter the area where the condenser tube 11 is located in the second space. Furthermore, during the process of passing through the second space, under the action of the condenser tube 11, the remaining small amount of gaseous refrigerant liquefies upon cooling, transforming into liquid refrigerant, and deposits in the liquid collection area 16 at the bottom of the condenser tank 1. Meanwhile, the non-condensable gas can continue to pass through the second space and flow to the condenser tank exhaust port 13 set at the top of the second space, so that the non-condensable gas discharge unit 4 can export the non-condensable gas separated in the condenser tank 1 through the condenser tank exhaust port 13, thereby discharging the non-condensable gas and purifying the refrigerant in the mixed gas (the purified refrigerant is liquid and deposited in the liquid collection area 16 at the bottom of the condenser tank 1).

[0109] In this embodiment, the condenser tank 1 can be divided into two interconnected areas by the partition 15, thereby increasing the flow time of the mixed gas in the condenser tank 1, increasing the condensation time of the gaseous refrigerant in the mixed gas by the condenser tube 11, improving the condensation effect, ensuring that the gaseous refrigerant and non-condensable gas in the mixed gas can be effectively separated, and thus ensuring the effective purification of the gaseous refrigerant in the mixed gas.

[0110] In one embodiment, Figure 5 Based on the condenser 1 shown, as Figure 6 As shown, a schematic diagram of a condenser tank structure including a gas-liquid separation plate is provided, wherein the condenser tank 1 further includes:

[0111] The gas-liquid separation plate 17 is located at the top of the second space and below the condenser exhaust port 13, and is used to separate non-condensable gas and liquid refrigerant carried in the non-condensable gas.

[0112] Among them, the gas-liquid separation plate 17 can separate gas and liquid based on the differences in the physical properties of fluids, such as gravity and inertia. The gas-liquid separation plate 17 has the following common separation principles: (1) Gravity separation principle: By setting a guide plate, the gas experiences less resistance when flowing through the guide plate, while the liquid is intercepted by the guide plate and accumulates on the plate wall, thereby achieving the separation of gas and liquid. (2) Inertial separation principle: Separation is achieved by utilizing the inertial difference between gas and liquid when changing the flow direction. The gas can change the flow direction during the process of passing through the gas-liquid separation plate 17, while the liquid carried in the gas is not easy to change the flow direction due to its greater inertia, thus separating from the gas under the action of inertia.

[0113] In this embodiment, the non-condensable gas flowing through the second space to the exhaust port 13 of the condenser can be filtered by the gas-liquid separation plate 17, and the liquid refrigerant carried in the non-condensable gas can be isolated. The isolated liquid refrigerant can drip down along the gas-liquid separation plate 17 and be deposited in the liquid collection area 16 at the bottom of the condenser 1, thereby improving the purification effect of the refrigerant in the mixed gas and increasing the refrigerant purification yield.

[0114] In one possible implementation, Figure 6 Based on the condenser 1 shown, as Figure 7 As shown, a schematic diagram of a condenser tank structure including fins is provided, wherein the condenser tank 1 further includes:

[0115] At least one fin 18 is provided in the first space and the second space respectively.

[0116] Among them, the fins 18 can increase the heat transfer area, exchange heat with the gas in the condenser tank 1, improve the condensation effect of the condenser tube 11, and ensure that the condenser tube 11 effectively condenses the gaseous refrigerant flowing in the condenser tank 1.

[0117] For example, multiple fins 18 can be arranged in parallel in the first space and the second space respectively, and the arrangement direction of the fins 18 can be parallel to the direction of gravity, and they are inserted in the condenser tube 11 to fully contact the gaseous refrigerant flowing through the first space and the second space, thereby improving the condensation and liquefaction effect of the condenser tube 11.

[0118] In this embodiment, the fins 18 arranged in the first space and the second space can improve the condensation and liquefaction effect of the refrigerant in the mixed gas and increase the refrigerant purification yield.

[0119] This application also provides a refrigerant purification system, such as... Figure 8 As shown, including Figure 7 The condenser 1 shown, and Figure 4 The condenser 2 and liquid refrigerant recovery unit 3 are shown in the application environment of the condenser tank.

[0120] The top of the condenser 2 is provided with a return air port 22, which is connected to the liquid refrigerant recovery unit 3. The liquid refrigerant recovery unit 3 is used to recover the liquid refrigerant discharged from the refrigerant return port 12 of the condenser tank 1, as well as the liquid refrigerant in the condenser tube 11 in the condenser tank 1, and convert the recovered liquid refrigerant into gaseous refrigerant, so that the converted gaseous refrigerant flows back to the return air port 22 and enters the gaseous refrigerant layer of the condenser 2.

[0121] For example, the liquid refrigerant recovery unit 3 can be a unit with heating and evaporation functions. It can heat and evaporate the liquid refrigerant flowing out from the second pipe port 112 of the condenser pipe 11 and the liquid refrigerant flowing out from the refrigerant return port 12 to convert the recovered liquid refrigerant into gaseous refrigerant. The gaseous refrigerant can flow back to the gas return port 22 of the condenser 2 through the pipeline.

[0122] It should be noted that, as Figure 8 As shown, a pipeline can also be installed between the liquid refrigerant recovery unit 3 and the liquid refrigerant layer in the condenser 2. Regardless of whether refrigerant purification is required, the liquid refrigerant recovery unit 3 can evaporate and vaporize the liquid refrigerant flowing from the liquid refrigerant layer, and inject the vaporized gaseous refrigerant into the return port 22 of the condenser 2 to drive the circulation of refrigerant in the condenser 2.

[0123] The aforementioned refrigerant purification system includes a condenser tank 1, a condenser 2, and a liquid refrigerant recovery unit 3. The top of the condenser 2 is equipped with a return port 22, which is connected to the liquid refrigerant recovery unit 3. The liquid refrigerant recovery unit 3 is used to recover the liquid refrigerant discharged from the refrigerant return port 12 of the condenser tank 1, as well as the liquid refrigerant inside the condenser tubes 11 in the condenser tank 1. It converts the recovered liquid refrigerant into gaseous refrigerant, allowing the converted gaseous refrigerant to flow back to the return port 22 and enter the gaseous refrigerant layer of the condenser 2. Using this refrigerant purification system eliminates the need for additional costs to introduce refrigerant into the condenser tubes 11 of the condenser tank 1, and avoids multiple process steps. The mixed gas collected from the condenser 2 can be conveniently and efficiently separated through the condenser tubes 11. It can also recover the liquid refrigerant inside the condenser tubes 11 and the liquid refrigerant obtained through condensation and liquefaction separation. This achieves low-cost and efficient separation of the mixed gas within the condenser 2 to purify the refrigerant in the gaseous refrigerant layer of the condenser 2.

[0124] In one embodiment, Figure 8 Based on the refrigerant purification system shown, such as Figure 9 As shown, the liquid refrigerant recovery unit 3 includes an evaporator 31;

[0125] The evaporator 31 is provided with a first liquid supply port 311, a second liquid supply port 312 and an evaporation port 313. The first liquid supply port 311 is connected to the refrigerant return port 12, the second liquid supply port 312 is connected to the second port 112 of the condenser tube 11, and the evaporation port 313 is connected to the gas return port 22.

[0126] Among them, the evaporator 31 is a device that can convert liquid substances into gaseous substances.

[0127] For example, in this embodiment, the interior of the evaporator 31 may include a heating chamber ( Figure 9 (not shown in the image) and evaporation chamber ( Figure 9 (Not shown in the image) The heating chamber provides the heat required for evaporation to the liquid refrigerant flowing into the evaporator 31, causing the liquid refrigerant to boil and vaporize, while the evaporation chamber allows for complete separation of the gas and liquid phases. That is, the liquid refrigerant can enter the heating chamber in the evaporator 31 through the first liquid supply port 311, the second liquid supply port 312, and the pipeline between the liquid refrigerant layer and the evaporation chamber. The heating chamber is connected to the evaporation chamber, and the vaporized gaseous refrigerant can enter the evaporation chamber and flow into the pipeline from the evaporation port 313 connected to the evaporation chamber, flowing to the return gas port 22, and then injected into the gaseous refrigerant layer of the condenser 2, realizing the recycling of the refrigerant.

[0128] In this embodiment, the refrigerant in the condenser 2 can be recycled through the evaporator 31 in the liquid refrigerant recovery unit 3, thereby achieving low-cost purification of the refrigerant in the condenser 2.

[0129] In some embodiments, Figure 9 Based on the refrigerant purification system shown, such as Figure 10 As shown, the liquid refrigerant recovery unit 3 may also include a compressor 32, which is located between the evaporator port 313 and the return gas port 22.

[0130] Among them, compressor 32 is a device that can raise low-pressure gas to high-pressure gas. The piston inside compressor 32 can be driven by an electric motor to compress the gas entering compressor 32 and then discharge high-pressure gas.

[0131] For example, such as Figure 10 As shown, the evaporator port 313 can be connected to the compressor inlet port 321 of the compressor 32, while the compressor exhaust pipe 322 of the compressor 32 can be connected to the return port 22. That is, the compressor 32 can compress the gaseous refrigerant that flows out of the evaporator port 313 and into the compressor inlet port 321, and discharge the high-pressure gaseous refrigerant through the compressor exhaust pipe 322, providing power for the circulation of the refrigerant, so that the gaseous refrigerant obtained after recovery and conversion can be smoothly injected into the return port 22 of the condenser 2 from the compressor exhaust pipe 322 under the action of pressure difference.

[0132] In this embodiment, the compressor 32 can provide power for the refrigerant circulation process, ensuring the smooth progress of the refrigerant purification and recycling process.

[0133] In one exemplary embodiment, in Figure 10 Based on the refrigerant purification system shown, such as Figure 11 As shown, the refrigerant purification system also includes a non-condensable gas discharge unit 4, which is used to discharge the non-condensable gas discharged from the condenser exhaust port 13 of the condenser tank 1.

[0134] For example, the non-condensable gas exhaust unit 4 can extract gas and discharge it to the outside, and can also temporarily store a portion of the gas. In this embodiment, the non-condensable gas exhaust unit 4 can discharge the non-condensable gas accumulated at the condenser exhaust port 13 through the condenser exhaust port 13, and can also temporarily store a portion of the extracted non-condensable gas. When the discharge conditions are met, the stored non-condensable gas can be discharged to the outside.

[0135] In this embodiment, the non-condensable gas separated from the mixed gas can be discharged through the non-condensable gas discharge unit 4, thereby avoiding interference of the non-condensable gas with the operation of the condenser 2.

[0136] In one embodiment, Figure 11 Based on the refrigerant purification system shown, such as Figure 12 As shown, the non-condensable gas exhaust unit 4 includes a gas tank 41 and a vacuum pump 42, wherein:

[0137] The gas tank 41 includes a gas tank inlet 411 and a gas tank outlet 412. The gas tank inlet 411 is connected to the condenser outlet 13 of the condenser tank 1 through a third solenoid valve 43, and the gas tank outlet 412 is connected to the vacuum pump 42 through a fourth solenoid valve 44.

[0138] The gas tank 41 has a certain volume and can be used to store non-condensable gases discharged from the condenser exhaust port 13. The vacuum pump 42 can evacuate the container being evacuated (i.e., the gas tank 41) and discharge the gas extracted from the gas tank 41 to the outside.

[0139] For example, such as Figure 11As shown, the fourth solenoid valve 44 can be connected to the vacuum pump 42 via the vacuum pump inlet 421, while the vacuum pump exhaust port 422 of the vacuum pump 42 is connected to the outside. When the third solenoid valve 43 is in the open state, the non-condensable gas accumulated at the condenser exhaust port 13 can enter the gas tank 41; when the third solenoid valve 43 is closed (not open), the non-condensable gas accumulated at the condenser exhaust port 13 cannot enter the gas tank 41. If the fourth solenoid valve 44 is open and the vacuum pump 42 is in working state, the vacuum pump 42 can extract the non-condensable gas stored in the gas tank 41 and discharge it to the outside; if the fourth solenoid valve 44 is closed (not open), the vacuum pump 42 cannot extract the non-condensable gas stored in the gas tank 41.

[0140] In this embodiment, the non-condensable gas can be discharged through the gas tank 41 and the vacuum pump 42 in the non-condensable gas discharge unit 4.

[0141] In one embodiment, in Figure 12 Based on the refrigerant purification system shown, such as Figure 13 As shown, the gas tank 41 also includes a pressure sensor 413, which is used to detect the gas pressure inside the gas tank 41.

[0142] When the gas pressure in the gas tank 41 rises to the first gas pressure threshold, the third solenoid valve 43 closes, the fourth solenoid valve 44 opens, and the vacuum pump 42 starts to run.

[0143] When the air pressure in the gas tank 41 drops to the second air pressure threshold, the third solenoid valve 43 is turned on, the fourth solenoid valve 44 is turned off, and the vacuum pump 42 stops running.

[0144] The first pressure threshold is greater than the second pressure threshold, and both the first and second pressure thresholds can be flexibly configured based on the actual application scenario. The pressure sensor 413 can detect pressure signals (such as the pressure inside the gas tank 41) and convert the pressure signals into usable output electrical signals according to a certain rule. This allows the controller of the refrigerant purification system to control the conduction state of the third solenoid valve 43 and the fourth solenoid valve 44, as well as the working state of the vacuum pump 42, based on the electrical signals fed back by the pressure sensor.

[0145] It should be noted that the gas volume of the condenser tank 1 can ensure that the gas pressure inside the condenser tank 1 will not affect the operation of the components inside the condenser tank 1 while waiting for the vacuum pump 42 to restart. That is, in this embodiment, when designing the size of the condenser tank 1, it is ensured that the gas volume of the condenser tank 1 is greater than the amount of gas entering the condenser tank 1 while the vacuum pump 42 stops running.

[0146] In this embodiment, the process of discharging non-condensable gases can be fully automatically controlled by the pressure sensor 413, which can efficiently and conveniently discharge the non-condensable gases in the condenser 2.

[0147] This application also provides a refrigerant purification method, which can be applied to, for example... Figure 13 The refrigerant purification system shown includes a condenser tank 1, a condenser 2, a liquid refrigerant recovery unit 3, and a non-condensable gas exhaust unit 4. The refrigerant purification system may also include a controller. Figure 13 (Not shown in the image), the controller can specifically be the main control chip (MCU) of the refrigerant purification system, which can automatically control the operation of various components in the refrigerant purification system according to the received instructions. The instructions received by the controller can be of various types, including those triggered remotely by the user using a terminal device, those triggered by the user pressing a touchscreen / button, and those triggered by pressure sensors in the refrigerant purification system.

[0148] Specifically, when the controller receives a refrigerant purification command, it can control the mixed gas in condenser 2 to flow from the gas inlet 20 of condenser 2 into the condenser tank gas collection port 10 of condenser tank 1, and control the liquid refrigerant in condenser 2 to be injected from the liquid outlet 21 of condenser 2 into the first port 111 of condenser tube 11 in condenser tank 1, so that condenser tube 11 condenses the gaseous refrigerant in the mixed gas in condenser tank 1 into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas. At the same time, the controller can also control the liquid refrigerant recovery unit 3 to convert the liquid refrigerant recovered from the refrigerant return port 12 of condenser tank 1 and the second port 112 of condenser tube 11 into gaseous refrigerant, and inject the converted gaseous refrigerant into the return port 22 of condenser 2, and control the non-condensable gas discharge unit 4 to discharge the non-condensable gas discharged from the condenser tank exhaust port 13 of condenser tank 1.

[0149] In one embodiment, such as Figure 14 As shown, a refrigerant purification method is provided, which can be applied to... Figure 13 Taking the refrigerant purification system in the example, the following steps are included:

[0150] Step 1402: When a refrigerant purification command is received, the mixed gas in the condenser is controlled to flow from the gas inlet of the condenser into the gas collection port of the condenser tank, and the liquid refrigerant in the condenser is controlled to be injected from the liquid inlet of the condenser into the first port of the condenser tube in the condenser tank, so that the condenser tube condenses the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas.

[0151] Optionally, when the controller receives a refrigerant purification command, it can activate the first solenoid valve 5 between the gas inlet 20 of the condenser 2 and the gas collection port 10 of the condenser tank 1, allowing the mixed gas in the condenser 2 to flow from the gas inlet 20 into the gas collection port 10 of the condenser tank 1. Simultaneously, the controller can also activate the second solenoid valve 7 between the liquid outlet 21 of the condenser 2 and the first port 111 of the condenser tube 11, allowing the liquid refrigerant in the condenser 2 to flow out from the liquid outlet 21, pass through the expansion valve 6 and the second solenoid valve 7, and be injected into the first port 111 of the condenser tube 11 in the condenser tank 1. Based on this, refrigerant is injected into the condenser tube 11, enabling it to cool and condense the gaseous refrigerant in the mixed gas collected in the condenser tank 1 into liquid refrigerant, thereby separating the non-condensable gases from the mixed gas.

[0152] Step 1404: Control the liquid refrigerant recovery unit to convert the liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second pipe port of the condenser tube into gaseous refrigerant, and inject the converted gaseous refrigerant into the gas return port of the condenser.

[0153] Optionally, when the controller receives a refrigerant purification command, it can simultaneously control the liquid refrigerant recovery unit 3 to convert the liquid refrigerant recovered from the refrigerant return port 12 of the condenser tank 1 and the second port 112 of the condenser tube 11 into gaseous refrigerant, and inject the converted gaseous refrigerant into the gas return port 22 of the condenser 2. It should be noted that for liquid refrigerant flowing into the liquid refrigerant recovery unit 3 from the pipeline between the liquid refrigerant layer and the liquid refrigerant recovery unit 3, the liquid refrigerant recovery unit 3 can also evaporate it and inject it into the gas return port 22 of the condenser 2 during operation.

[0154] Step 1406: Control the non-condensable gas discharge unit to discharge the non-condensable gas exported from the condenser exhaust port of the condenser.

[0155] Optionally, when the controller receives a refrigerant purification command, the controller can control the non-condensable gas discharge unit 4 to start operation so that the non-condensable gas discharged from the condenser exhaust port 13 of the condenser tank 1 can be discharged through the non-condensable gas discharge unit 4.

[0156] In the above-described refrigerant purification method, when the controller receives a refrigerant purification command, it can control the mixed gas in the condenser 2 to flow from the gas inlet 22 of the condenser 2 into the condenser tank gas collection port 10 of the condenser tank 1, and control the liquid refrigerant in the condenser 2 to be injected from the liquid inlet 21 of the condenser 2 into the first port 111 of the condenser tube 11 in the condenser tank 1, without incurring additional costs to introduce refrigerant into the condenser tube 11, so that the condenser tube 11 can condense the gaseous refrigerant in the mixed gas in the condenser tank 1 into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas. Furthermore, the liquid refrigerant recovery unit 3 can be controlled to convert the liquid refrigerant recovered from the refrigerant return port 12 of the condenser tank 1 and the second port 112 of the condenser tube 11 into gaseous refrigerant, and inject the converted gaseous refrigerant into the return port 22 of the condenser 2, thereby realizing the recovery and utilization of the liquid refrigerant obtained from condensation and the liquid refrigerant in the condenser tube 11. The non-condensable gas discharge unit 3 can also be controlled to discharge the non-condensable gas discharged from the condenser tank exhaust port 13 of the condenser tank 1. Using the above refrigerant purification method, there is no need to incur additional costs to introduce refrigerant into the condenser tube 11, and there is no need for multiple process steps. The mixed gas collected from the condenser 2 can be conveniently and efficiently separated through the condenser tube 11. The liquid refrigerant inside the condenser tube 11 and the liquid refrigerant obtained from condensation and liquefaction can also be recovered, and the separated non-condensable gas can be discharged. This achieves low-cost and efficient separation of the mixed gas in the condenser 2 to purify the refrigerant in the gaseous refrigerant layer of the condenser 2.

[0157] In one embodiment, the refrigerant purification method is applied to, for example... Figure 13 Taking the refrigerant purification system shown as an example, the liquid refrigerant recovery unit 3 includes an evaporator 31 and a compressor 32.

[0158] When the controller receives the refrigerant purification control command, the controller can control the evaporator 31 and compressor 32 in the liquid refrigerant recovery unit 3 to start running, so that the evaporator 31 can convert the liquid refrigerant recovered from the refrigerant return port 12 and the second port 112 of the condenser tank 1, as well as the liquid refrigerant flowing in from the pipeline between the liquid refrigerant layer and the evaporator 31, into gaseous refrigerant. The compressor 32 can compress the converted gaseous refrigerant and inject the compressed gaseous refrigerant into the return port 22 of the condenser 2.

[0159] In this embodiment, the refrigerant in the condenser 2 can be recycled and reused by controlling the operation of the liquid refrigerant recovery unit 3.

[0160] In one embodiment, the refrigerant purification method is applied to, for example... Figure 13 Taking the refrigerant purification system shown as an example, the non-condensable gas discharge unit 4 includes a gas tank 41 and a vacuum pump 42.

[0161] When the controller receives a refrigerant purification control command, it can monitor the pressure inside the gas tank 41 based on the pressure sensor 413 installed inside the gas tank 41. If the gas pressure inside the gas tank 41 does not reach the first pressure threshold, the controller can control the third solenoid valve 43 to open and the fourth solenoid valve 44 to close, and the vacuum pump 42 to stop running, thereby allowing the non-condensable gas separated from the condenser tank 1 to be discharged from the condenser tank exhaust port 13 of the condenser tank 1 to the gas tank 41. If the gas pressure inside the gas tank 41 reaches the first gas pressure threshold, the controller can control the third solenoid valve 43 to close and the fourth solenoid valve 44 to open, and the vacuum pump 42 to run, thereby stopping the discharge of non-condensable gas into the gas tank 41, and controlling the vacuum pump 42 to discharge the non-condensable gas in the gas tank 41 until the gas pressure inside the gas tank 41 drops to the second gas pressure threshold. Then, the controller controls the third solenoid valve 43 to open and the fourth solenoid valve 44 to close, and the vacuum pump 42 to stop running, so as to stop the discharge of non-condensable gas from the gas tank 41, and control the non-condensable gas separated from the condenser 1 to be discharged from the condenser exhaust port 13 to the gas tank 41.

[0162] In this embodiment, the process of removing non-condensable gases can be automatically and flexibly controlled according to the pressure inside the gas tank 41, which can simply and effectively improve the operating performance of the condenser 2.

[0163] In one specific embodiment, such as Figure 15 As shown, the application is provided. Figure 13 The diagram shows a flow chart of a refrigerant purification method for a refrigerant purification system, which mainly includes the following steps:

[0164] Step 1502: Receive refrigerant purification command;

[0165] Step 1504: Control the first and second solenoid valves to open, control the evaporator and compressor to start running, and monitor the gas pressure in the gas tank through the pressure sensor;

[0166] If the gas pressure in the gas tank does not reach the first gas pressure threshold, execute step 1506, control the third solenoid valve to open, control the fourth solenoid valve to close, and control the vacuum pump to stop running, so as to increase the gas pressure in the gas tank; during the execution of step 1506, monitor in real time whether the gas pressure in the gas tank has risen to the first gas pressure threshold.

[0167] If the gas pressure inside the gas tank does not reach the first gas pressure threshold, proceed to step 1508, controlling the third solenoid valve to close, controlling the fourth solenoid valve to open, and controlling the vacuum pump to start running, so as to reduce the gas pressure inside the gas tank. During the execution of step 1508, monitor in real time whether the gas pressure inside the gas tank has dropped to the second gas pressure threshold. If the gas pressure inside the gas tank drops to the second gas pressure threshold, return to step 1506 to increase the gas pressure inside the gas tank. If the gas pressure inside the gas tank does not drop to the second gas pressure threshold, continue to execute step 1508.

[0168] In this embodiment, Figure 13 The refrigerant purification system shown can be implemented according to... Figure 15 The control process shown operates cyclically, effectively and continuously expelling non-condensable gases from the refrigeration equipment, ensuring its heat exchange efficiency and improving its operational performance. It should be noted that the refrigerant purification process is generally set within a specific working time period. Upon receiving a refrigerant purification command, the controller can control the cyclical operation of the refrigerant purification process and the non-condensable gas expulsion process within this working time period. When not in the refrigerant purification working time period, the controller can close the first solenoid valve 5, the second solenoid valve 7, the third solenoid valve 43, and the fourth solenoid valve 44, and stop the vacuum pump 422. Only the evaporator 31 and compressor 32 can be controlled to operate, achieving refrigerant recycling. Specifically, the evaporator 31 heats and vaporizes the liquid refrigerant flowing into it from the liquid refrigerant layer, and then the compressor 32 injects the vaporized, high-pressure gaseous refrigerant into the gaseous refrigerant layer of the condenser 2, thus achieving refrigerant recycling in the condenser 2.

[0169] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0170] Based on the same inventive concept, this application also provides a refrigerant purification apparatus for implementing the refrigerant purification method described above. The solution provided by this apparatus is similar to the solution described in the above method; therefore, the specific limitations in one or more refrigerant purification apparatus embodiments provided below can be found in the limitations of the refrigerant purification method described above, and will not be repeated here.

[0171] In one embodiment, such as Figure 16 As shown, a refrigerant purification device is provided, applied to a refrigerant purification system including a condenser, a condensate tank, a liquid refrigerant recovery unit, and a non-condensable gas discharge unit. The device includes: a refrigerant purification command response module 1602, a recovery unit control module 1604, and a discharge unit control module 1606, wherein:

[0172] The refrigerant purification command response module is used to control the mixed gas in the condenser to flow from the gas inlet of the condenser into the gas collection port of the condenser tank when a refrigerant purification command is received, and to control the liquid refrigerant in the condenser to be injected from the liquid inlet of the condenser into the first port of the condenser tube in the condenser tank, so that the condenser tube condenses the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas.

[0173] The refrigerant recovery unit control module is used to control the liquid refrigerant recovery unit, which converts the liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second pipe port of the condenser tube into gaseous refrigerant, and injects the converted gaseous refrigerant into the gas return port of the condenser.

[0174] The exhaust unit control module is used to control the non-condensable gas exhaust unit, which discharges the non-condensable gas exported from the condenser exhaust port of the condenser tank.

[0175] The aforementioned refrigerant purification device, upon receiving a refrigerant purification command, controls the mixed gas in the condenser to flow from the condenser's gas inlet into the condenser tank's gas collection port. It also controls the injection of liquid refrigerant from the condenser's liquid inlet into the first port of the condenser tube in the condenser tank, eliminating the need for additional cost to introduce refrigerant into the condenser tube. This allows the condenser tube to condense the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thus separating the non-condensable gases from the mixed gas. Furthermore, a liquid refrigerant recovery unit can be controlled to convert the liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second port of the condenser tube into gaseous refrigerant, and inject the converted gaseous refrigerant into the condenser's gas return port, achieving the recovery and utilization of the condensed liquid refrigerant and the liquid refrigerant in the condenser tube. A non-condensable gas discharge unit can also be controlled to discharge the non-condensable gases discharged from the condenser tank's exhaust port. Using the above-mentioned refrigerant purification method, there is no need to spend extra costs to introduce refrigerant into the condenser tube, and there is no need to go through multiple processes. The mixed gas collected from the condenser can be separated conveniently and efficiently through the condenser tube. It can also recover the liquid refrigerant inside the condenser tube and the liquid refrigerant obtained by condensation and liquefaction separation, and discharge the separated non-condensable gas. It can achieve low-cost and high-efficiency separation of mixed gas in the condenser to purify the refrigerant in the gaseous refrigerant layer of the condenser.

[0176] In one embodiment, the liquid refrigerant recovery unit includes an evaporator and a compressor. The recovery unit control module is further configured to: control the evaporator to convert the liquid refrigerant recovered from the refrigerant return port of the condenser and the second port of the condenser tube into gaseous refrigerant; and control the compressor to inject the converted gaseous refrigerant into the gas return port of the condenser.

[0177] In one embodiment, the non-condensable gas discharge unit includes a gas tank and a vacuum pump. The discharge unit control module is further configured to: if the gas pressure in the gas tank does not reach a first pressure threshold, control the discharge of non-condensable gas separated from the condenser tank from the condenser tank exhaust port to the gas tank; if the gas pressure in the gas tank reaches the first pressure threshold, control the cessation of discharge of non-condensable gas to the gas tank, and control the vacuum pump to discharge the non-condensable gas from the gas tank until the gas pressure in the gas tank drops to a second pressure threshold, control the cessation of discharge of non-condensable gas from the gas tank, and control the discharge of non-condensable gas separated from the condenser tank from the condenser tank exhaust port to the gas tank.

[0178] Each module in the aforementioned refrigerant purification device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the operations corresponding to each module.

[0179] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 17 As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores refrigerant purification data. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When executed by the processor, the computer program implements a refrigerant purification method.

[0180] Those skilled in the art will understand that Figure 17 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0181] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0182] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps in the above method embodiments.

[0183] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0184] It should be noted that the information and data involved in this application (including but not limited to data used for analysis, data stored, data displayed, etc.) are all information and data fully authorized by all parties, and the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions.

[0185] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0186] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0187] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A condenser, characterized in that, The condenser includes a condenser gas collection port, a condenser pipe, a refrigerant return port, and a condenser exhaust port; The condenser tank's gas collection port is connected to the condenser's gas inlet via a first solenoid valve to connect to the gaseous refrigerant layer at the top of the condenser, where a mixed gas accumulates. The first port of the condenser tube is connected to the condenser's liquid outlet via an expansion valve and a second solenoid valve. The liquid outlet is located in the condenser's liquid refrigerant layer. The second port of the condenser tube and the refrigerant return port are respectively connected to a liquid refrigerant recovery unit. The condenser tank's exhaust port is connected to a non-condensable gas exhaust unit. The condenser tank gas collection port is used to collect the mixed gas in the condenser, the mixed gas including gaseous refrigerant and non-condensable gas; The condenser tube is used to condense the gaseous refrigerant in the condenser tank into liquid refrigerant, thereby separating the gaseous refrigerant and non-condensable gas in the condenser tank. The refrigerant return port is used to export the liquid refrigerant that has been condensed and deposited at the bottom of the condenser to the liquid refrigerant recovery unit; The condenser exhaust port is used to discharge the separated non-condensable gases to the non-condensable gas discharge unit.

2. The condenser according to claim 1, characterized in that, The condenser also includes: The housing has a refrigerant return port at its bottom; A partition divides the housing into a first space and a second space that are connected at the bottom. The condenser gas collection port is located at the top of the first space, and the condenser exhaust port is located at the top of the second space. The condenser tube passes through the partition and runs through the first space and the second space; the gaseous refrigerant collected by the condenser tank's gas collection port is condensed by the condenser tube and deposited at the bottom of the shell; the non-condensable gas collected by the condenser tank's gas collection port passes through the first space and the second space and is discharged from the condenser tank's exhaust port.

3. The condenser according to claim 2, characterized in that, The condenser also includes: A gas-liquid separation plate is disposed at the top of the second space and below the exhaust port of the condenser tank, and is used to separate the non-condensable gas and the liquid refrigerant carried in the non-condensable gas.

4. The condenser according to claim 2, characterized in that, The condenser also includes: The first space and the second space are each provided with at least one fin.

5. A refrigerant purification system, characterized in that, Includes a condenser, a liquid refrigerant recovery unit, and a condenser tank as described in any one of claims 1 to 4; The top of the condenser is provided with a return air port, which is connected to the liquid refrigerant recovery unit. The liquid refrigerant recovery unit is used to recover the liquid refrigerant discharged from the refrigerant return port of the condenser tank and the liquid refrigerant in the condenser tubes of the condenser tank, and convert the recovered liquid refrigerant into gaseous refrigerant, so that the converted gaseous refrigerant flows back to the return air port and enters the gaseous refrigerant layer of the condenser.

6. The refrigerant purification system according to claim 5, characterized in that, The liquid refrigerant recovery unit includes an evaporator; The evaporator is provided with a first liquid supply port, a second liquid supply port, and an evaporation port. The first liquid supply port is connected to the refrigerant return port, the second liquid supply port is connected to the second port of the condenser tube, and the evaporation port is connected to the gas return port.

7. The refrigerant purification system according to claim 6, characterized in that, The liquid refrigerant recovery unit also includes a compressor, which is located between the evaporator port and the return gas port.

8. The refrigerant purification system according to claim 5, characterized in that, The refrigerant purification system also includes a non-condensable gas discharge unit, which is used to discharge the non-condensable gas discharged from the condenser exhaust port of the condenser tank.

9. The refrigerant purification system according to claim 8, characterized in that, The non-condensable gas exhaust unit includes a gas tank and a vacuum pump; The gas tank includes a gas tank inlet and a gas tank outlet. The gas tank inlet is connected to the condenser outlet of the condenser via a third solenoid valve, and the gas tank outlet is connected to the vacuum pump via a fourth solenoid valve.

10. The refrigerant purification system according to claim 9, characterized in that, The gas tank also includes a pressure sensor, which is used to detect the gas pressure inside the gas tank; When the gas pressure in the gas tank rises to the first gas pressure threshold, the third solenoid valve closes, the fourth solenoid valve opens, and the vacuum pump starts to run. When the gas pressure inside the gas tank drops to the second gas pressure threshold, the third solenoid valve is activated, the fourth solenoid valve is closed, and the vacuum pump stops operating.

11. A method for purifying refrigerant, characterized in that, The method, applicable to a refrigerant purification system including condensers, condensate tanks, liquid refrigerant recovery units, and non-condensable gas discharge units, comprises: When a refrigerant purification command is received, the mixed gas in the condenser is controlled to flow from the gas inlet of the condenser into the gas collection port of the condenser tank, and the liquid refrigerant in the condenser is controlled to be injected from the liquid inlet of the condenser into the first port of the condenser tube in the condenser tank, so that the condenser tube condenses the gaseous refrigerant in the mixed gas in the condenser tank into liquid refrigerant, thereby separating the non-condensable gas in the mixed gas; The liquid refrigerant recovery unit is controlled to convert the liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second port of the condenser tube into gaseous refrigerant, and inject the converted gaseous refrigerant into the gas return port of the condenser. The non-condensable gas discharge unit controls the discharge of non-condensable gases from the condenser exhaust port of the condenser.

12. The refrigerant purification method according to claim 11, characterized in that, The liquid refrigerant recovery unit includes an evaporator and a compressor; The control unit for the liquid refrigerant recovery system converts the liquid refrigerant recovered from the refrigerant return port of the condenser tank and the second port of the condenser tube into gaseous refrigerant, and injects the converted gaseous refrigerant into the gas return port of the condenser, including: The evaporator is controlled to convert the liquid refrigerant recovered from the refrigerant return port of the condenser and the second port of the condenser tube into gaseous refrigerant. The compressor is controlled to inject the converted gaseous refrigerant into the return port of the condenser.

13. The refrigerant purification method according to claim 11, characterized in that, The non-condensable gas exhaust unit includes a gas tank and a vacuum pump; The unit controlling the discharge of non-condensable gases will discharge the non-condensable gases from the condensate tank exhaust port, including: If the gas pressure in the gas tank does not reach the first gas pressure threshold, the non-condensable gas separated from the condenser is controlled to be discharged from the condenser exhaust port of the condenser back into the gas tank. If the gas pressure inside the gas tank reaches the first gas pressure threshold, control to stop exporting non-condensable gas to the gas tank, and control the vacuum pump to discharge the non-condensable gas from the gas tank until the gas pressure inside the gas tank drops to the second gas pressure threshold. Then, control to stop exporting the non-condensable gas from the gas tank, and control to export the non-condensable gas separated from the condenser from the condenser exhaust port to the gas tank.

14. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 11 to 13.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 11 to 13.

16. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 11 to 13.

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