WO2023279725A1 - 制冷剂的回收系统及其回收方法 - Google Patents
制冷剂的回收系统及其回收方法 Download PDFInfo
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- WO2023279725A1 WO2023279725A1 PCT/CN2022/076676 CN2022076676W WO2023279725A1 WO 2023279725 A1 WO2023279725 A1 WO 2023279725A1 CN 2022076676 W CN2022076676 W CN 2022076676W WO 2023279725 A1 WO2023279725 A1 WO 2023279725A1
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- section
- air
- refrigerant
- gas
- way valve
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 115
- 238000011084 recovery Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000000605 extraction Methods 0.000 claims abstract description 64
- 238000005086 pumping Methods 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000003570 air Substances 0.000 description 143
- 238000003825 pressing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/002—Collecting refrigerant from a cycle
Definitions
- the present application relates to the technical field of air conditioning, in particular to a refrigerant recovery system and a recovery method thereof.
- Air conditioners adjust and control the temperature, humidity, flow rate and other parameters of the ambient air in buildings or structures. , to meet people's needs for the surrounding environment.
- the air conditioner there is a refrigerant in the air conditioner.
- the refrigerant inside is used for heat exchange.
- the air conditioner is discarded or needs to be researched and tested, the Refrigerant removal.
- This application provides a refrigerant recovery system and its recovery method, which are used to solve the defects in the prior art that releasing the refrigerant will cause great waste and cause great damage to the environment, and realize the air conditioner Recovery and reuse of internal refrigerant.
- the application provides a refrigerant recovery system, including:
- An air extraction system the air extraction system includes an air extraction pump, an air extraction pipe and an exhaust pipe, the air extraction pump has an air extraction section and an exhaust section respectively, the air extraction section is connected to one end of the air extraction pipe, the The exhaust section is connected to one end of the exhaust pipe;
- a gas storage system the gas storage system includes a gas storage tank and a gas filling pipe, the gas storage tank has a gas storage section and a gas filling section respectively, the gas storage section is connected to the other end of the exhaust pipe, the The gas filling section is connected to one end of the gas filling pipe.
- the gas extraction section, the gas storage section and the gas filling section are all provided with gate valves.
- the air extraction section, the air storage section and the air filling section are all provided with check valves.
- a movable piston is provided in the air pump, a driving structure is provided on the air pump, and a suction pump is formed on one side of the piston in the air pump.
- the air chamber, the driving end of the driving structure is connected to the other side of the piston; the air extraction section and the exhaust section are respectively connected to the air extraction chamber, and a rotatable
- the first one-way valve plate, the first one-way valve plate tends to block the air suction section, the first one-way valve plate only rotates toward the air suction chamber, and the exhaust section is provided with A rotatable second one-way valve plate, the second one-way valve plate tends to block the exhaust section, and the second one-way valve plate only rotates away from the suction chamber.
- the refrigerant recovery system further includes a processing unit, and a first pressure detector and a first flow regulating valve are also provided on the pumping section, and the first The pressure detector is used to detect the pressure in the pumping section, and the processing unit is electrically connected to the first pressure detector, the first flow regulating valve and the driving structure respectively.
- the refrigerant recovery system further includes a processing unit, and a mass flow meter and a second flow regulating valve are arranged on the gas filling section, and the mass flow meter is used for
- the processing unit is electrically connected to the mass flow meter and the second flow regulating valve respectively.
- a pressurizing device is provided in the air storage tank, the pressurizing device has a pressurizing plug, and the pressurizing plug is movably arranged on the air storage tank In the air storage tank, an air storage cavity is formed on one side of the pressurization plug, and the gas storage section and the gas filling section are respectively communicated with the air storage cavity.
- the refrigerant recovery system further includes a processing unit, and a second pressure detector is provided on the gas storage tank, and the second pressure detector is used to detect the The pressure of the pumping chamber, the processing unit is electrically connected to the second pressure detector and the pressurizing device respectively.
- the present application also provides a refrigerant recovery method, including the refrigerant recovery system described in any one of the above, and the steps include:
- the method for recovering refrigerant further includes:
- the refrigerant recovery system and its recovery method provided by this application can draw the refrigerant in the air conditioner to be vented into the air storage tank through the air extraction system, and the gas storage tank can store the refrigerant, and, as required , the refrigerant in the air storage tank can also be added to the air conditioner to be filled through the air filling pipe.
- the refrigerant recovery system provided by the present application can recover the refrigerant, avoid waste, and will not cause damage to the environment.
- the stored refrigerant can also be added to the air conditioner to be filled, which realizes the recovery and reuse of the refrigerant, and the operation is convenient and quick.
- Fig. 1 is one of the structural schematic diagrams of the refrigerant recovery system provided by the present application.
- Fig. 2 is the second structural schematic diagram of the refrigerant recovery system provided by the present application.
- Fig. 3 is one of the schematic flow charts of the refrigerant recovery method provided by the present application.
- Fig. 4 is the second schematic flow diagram of the refrigerant recovery method provided by the present application.
- 11 pumping section; 111: first flow regulating valve; 112: first pressure detector;
- 22 gas filling section; 221: mass flow meter; 222: second flow regulating valve;
- 60 air conditioner to be vented; 71: gate valve; 72: processing unit;
- the refrigerant recovery system includes:
- Air extraction system described air extraction system comprises air extraction pump 10, air extraction pipe 30 and exhaust pipe 40, and described air extraction pump 10 has air extraction section 11 and exhaust section 12 respectively, and described air extraction section 11 is connected to described One end of the exhaust pipe 30, the exhaust section 12 is connected to one end of the exhaust pipe 40;
- a gas storage system the gas storage system includes a gas storage tank 20 and a gas filling pipe 50, the gas storage tank 20 has a gas storage section 21 and a gas filling section 22 respectively, and the gas storage section 21 is connected to the exhaust pipe 40, the gas filling section 22 is connected to one end of the gas filling pipe 50.
- the air suction pump 10 is used to suck or inhale the gas from one end of the air suction section 11 and discharge it from one end of the exhaust section 12; the gas storage tank 20 is used for storing gas.
- the refrigerant recovery system provided in this embodiment extracts the refrigerant from the air conditioner, and the refrigerant is sucked into the air storage tank 20 through the connection of various pipes, and the gas filling section 22 on the air storage tank 20 can also be discharged. gaseous refrigerant.
- the suction pipe 30 is used to suck the refrigerant in the air conditioner 60 to be deflated, and its other end is used as a two-way valve interface or a three-way valve interface for connecting the outdoor unit of the air conditioner.
- the end of the air extraction pipe 30 away from the air extraction pump 10 has an air extraction interface, and the outer circumference of the air extraction interface is provided with a fixed nut.
- the external thread on the outer circumference of the two-way valve interface or the three-way valve interface is fixed.
- gas filling pipe 50 is used to add refrigerant into the air conditioner to be filled, and its other end is also used to connect the two-way valve port or the three-way valve port of the outdoor unit of the air conditioner.
- the connection method can refer to the above-mentioned exhaust pipe 30 The connection method of the air extraction interface will not be described in detail.
- connection method between one section of the suction pipe 30 and the suction section 11 can refer to the connection method between the other end of the suction pipe 30 and the two-way valve interface or three-way valve.
- connection methods of the gas section 12 and the gas storage section 21 as well as the connection methods of the gas supply pipe 50 and the gas supply section 22 can refer to the above connection methods, and will not be described in detail.
- the air suction section 11 and the exhaust section 12 given in this embodiment are integrally formed on the air pump 10, and the air suction section 11 and the exhaust section 12 are respectively detachably connected with the air suction pipe 30 and the exhaust pipe 40, of course , in other embodiments, the air suction section 11 and the exhaust section 12 can also be integrated with the air suction pipe 30 and the exhaust pipe 40 respectively, and the air suction section 11 and the exhaust section 12 are detachably connected with the air pump 10; the same
- the gas storage section 21 and the gas filling section 22 given in this embodiment are integrally formed on the gas storage tank 20, and the gas storage section 21 and the gas filling section 22 are detachably connected with the exhaust pipe 40 and the gas filling pipe 50 respectively.
- the gas storage section 21 and the gas filling section 22 can also be integrated with the exhaust pipe 40 and the gas filling pipe 50 respectively, and the gas storage section 21 and the gas filling section 22 are detachably connected to the gas storage tank 20 .
- the refrigerant in the air conditioner 60 to be vented can be sucked into the air storage tank 20 through the air extraction system, and the air storage tank 20 can store the refrigerant, and, if necessary, the refrigerant can also be pumped through the gas filling pipe 50 Add the refrigerant in the air storage tank 20 into the air conditioner to be filled.
- the refrigerant recovery system provided by the present application can recover the refrigerant, avoid waste, and will not cause damage to the environment.
- the stored refrigerant can also be added to the air conditioner to be filled, which realizes the recovery and reuse of the refrigerant, and the operation is convenient and quick.
- the gas pumping section 11 , the gas storage section 21 and the gas filling section 22 are all provided with gate valves 71 .
- the gate valve 71 By setting the gate valve 71 on the pumping section 11, the gate valve 71 can be closed to prevent air from entering when there is no need for pumping, and the gate valve 71 can be opened when pumping to ensure the stable flow of refrigerant;
- a gate valve 71 is provided to ensure that the refrigerant flows into the air storage tank 20 during pumping, and after the pumping is completed, the refrigerant can be prevented from flowing out to ensure sealed storage; , can prevent the refrigerant from flowing out, ensure sealed storage, and when needed, open the gate valve 71 to add gas to the air conditioner to be filled.
- the gate valve 71 given in this embodiment is closed or opened manually.
- the gate valve 71 can be driven to close or open by a driver, and the driver is electrically connected to the processing unit 72 to realize automatic control.
- the air extraction section 11 , the air storage section 21 and the air filling section 22 are all provided with a check valve 73 .
- the check valve 73 can ensure the one-way circulation of the pipeline and avoid backflow. By setting the check valve 73 at the suction end and the gas storage section 21, it can be ensured that the refrigerant can only flow to the gas storage tank in one direction during the gas storage process. 20. It is impossible to return and improve the gas storage efficiency; by setting the check valve 73 in the gas filling section 22, it can be ensured that the refrigerant can only flow into the air conditioner to be filled in one direction during the filling process of the gas storage tank 20, ensuring The amount of gas added is precise.
- a movable piston 101 is provided in the air pump 10 , and a driving structure 102 is provided on the air pump 10 .
- One side of the piston 101 is formed with an air extraction cavity, and the driving end of the driving structure 102 is connected to the other side of the piston 101; the air extraction section 11 and the exhaust section 12 are respectively communicated with the air extraction cavity, the first one-way valve plate that can be rotated is provided in the air extraction section 11, and the first one-way valve plate tends to block the air extraction section 11, and the first one-way valve plate only faces
- the air pumping chamber rotates, and a rotatable second one-way valve plate is provided in the exhaust section 12, and the second one-way valve plate tends to block the exhaust section 12, and the second one-way valve plate tends to block the exhaust section 12. Rotate the valve plate only away from the suction chamber.
- the pumping structure of the air pump 10 given here achieves suction when the driving structure 102 drives the piston 101 to move. Specifically, when the piston 101 moves to increase the air suction chamber, the first one-way valve turns and conducts. The suction section 11, the second one-way valve blocks the exhaust section 12, and the refrigerant is sucked into the suction chamber. When the piston 101 moves to reduce the suction chamber, the first one-way valve blocks the suction section 11, and the second The two one-way valves are turned and connected to the exhaust section 12, and the refrigerant is discharged into the air storage tank 20. In this way, through the back and forth movement of the piston 101, the refrigerant can be discharged to the air storage tank 20 for storage.
- the driving structure 102 includes a driving rod and a manual pressing rod, the driving rod is connected to the valve of the piston 101, and the manual pressing rod is located outside the air pump 10, and the piston 101 can be driven to move by manually pulling and pressing the manual pressing rod to realize air extraction. .
- the driving structure 102 may be a structure that automatically drives the piston 101 to move, for example, the driving structure 102 includes a driving rod and a cylinder, and the cylinder drives the driving rod to move telescopically to realize air extraction.
- the refrigerant recovery system further includes a processing unit 72, and the pumping section 11 is also provided with a first pressure detector. 112 and the first flow regulating valve 111, the first pressure detector 112 is used to detect the pressure in the pumping section 11, and the processing unit 72 is respectively connected with the first pressure detector 112 and the first flow regulating valve.
- the valve 111 is electrically connected with the driving structure 102 .
- the refrigerant recovery system further includes a processing unit 72, and the gas filling section 22 is also provided with a mass flow meter 221 and a second flow regulator.
- the valve 222, the mass flow meter 221 is used to detect the quality of the refrigerant circulating in the gas filling section 22, and the processing unit 72 is electrically connected to the mass flow meter 221 and the second flow regulating valve 222 respectively.
- a pressurizing device 202 is provided in the gas storage tank 20, and the pressurizing device 202 has a pressurizing plug 201, and the pressurizing plug 201 is movable.
- the gas storage tank 20 is arranged in the gas storage tank 20, and a gas storage chamber is formed on one side of the pressurization plug 201 in the gas storage tank 20, and the gas storage section 21 and the gas filling section 22 are respectively communicated with The air storage cavity.
- the volume of the air storage chamber can be reduced by the pressurization plug 201 of the pressurization device 202, so that the pressure of the refrigerant stored therein can be increased as required, so as to meet the demand of air filling.
- the pressurizing device 202 can be optionally a booster pump, of course, in other embodiments, the pressurizing device 202 includes a pressurizing drive rod, one end of the pressurizing drive rod is connected to the pressurizing plug 201, and the other end extends out of the air storage pump, In this way, pressurization can be achieved manually.
- the refrigerant recovery system further includes a processing unit 72, and the gas storage tank 20 is provided with a second pressure detector 203, and the second pressure detector 203 is used to detect the For the pressure of the air chamber, the processing unit 72 is electrically connected to the second pressure detector 203 and the pressurizing device 202 respectively.
- the gate valve 71, the first pressure detector 112, the first flow regulating valve 111 and the check valve 73 are arranged in sequence, and the first valve plate is located close to the air extraction cavity.
- the second valve plate On the exhaust section 12, the second valve plate is located close to the air extraction cavity to ensure the stable extraction of refrigerant; in the gas storage section 21 On the top, along the exhaust direction, the gate valve 71 and check valve 73 are arranged in order to ensure the stable storage of refrigerant; on the gas filling section 22, along the gas filling direction, the check valve 73, gate valve 71, and the second The regulating valve 222 and the mass flow meter 221 are arranged in sequence, and the quality detection of the refrigerant is accurate, so as to ensure the stable and precise filling of the refrigerant.
- the present application also provides a refrigerant recovery method, including the refrigerant recovery system.
- the steps include:
- the processing unit 72 controls the first flow regulating valve 111 Close, and control the driving structure 102 to stop the air pump 10 from working. Further, in one embodiment, when the pressure gauge of the first pressure detector 112 shows that the pressure gradually decreases, the processing unit 72 controls the first flow regulating valve 111 to decrease gradually, so as to ensure a stable flow of refrigerant.
- a first alarm element is also provided.
- the element is electrically connected with the processing unit 72, and the user can be reminded to lock the two-way valve or the three-way valve of the air conditioner 60 to be released in time through the first alarm unit.
- the gate valve 71 of the suction section 11 and the gas storage section 21 is driven and closed manually or controlled by the processing unit 72 to further avoid gas flow and ensure the stable storage of refrigerant in the gas storage tank 20 .
- the recovery method of the refrigerant also includes:
- the size of the second flow valve can be adjusted through the processing unit 72 according to the quality information of the refrigerant fed back by the mass flow meter 221 in real time to achieve precise gas filling, and when the total flow reaches the set value , the processing unit 72 controls the second flow valve to close, and stops adding gas.
- a second alarm element is also provided, and the second alarm element It is electrically connected with the processing unit 72, and the user can be reminded to lock the two-way valve or the three-way valve of the air conditioner to be filled in time through the second alarm unit.
- the gate valve 71 of the gas filling section 22 is controlled and driven to be closed manually or by the processing unit 72, so as to further prevent gas flow and gas leakage.
- the application can automatically control gas storage and gas filling according to the processing unit 72, reduce human intervention, improve the accuracy of gas storage and gas filling, At the same time, the efficiency of gas storage and filling is improved.
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Abstract
本申请提供一种制冷剂的回收系统及其回收方法。其中，制冷剂的回收系统，包括：抽气系统，所述抽气系统包括抽气泵、抽气管以及排气管，所述抽气泵分别具有抽气段和排气段，所述抽气段连接于所述抽气管的一端，所述排气段连接于所述排气管的一端；储气系统，所述储气系统包括储气罐和加气管，所述储气罐分别具有储气段和加气段，所述储气段连接于所述排气管的另一端，所述加气段连接于所述加气管的一端。本申请给出的制冷剂的回收系统，可回收制冷剂，避免造成浪费，不会给环境造成破坏，并实现了制冷剂的回收再利用。
Description
相关申请的交叉引用
本申请要求于2021年07月06日提交的申请号为202110761224.4，名称为“制冷剂的回收系统及其回收方法”的中国专利申请的优先权，其通过引用方式全部并入本文。
本申请涉及空调技术领域，尤其涉及一种制冷剂的回收系统及其回收方法。
随着社会的发展，人们的生活水平不断提高，空调器已经成为人们日常生活中必不可少的电器设备，空调器通过对建筑或构筑物内环境空气的温度、湿度、流速等参数进行调节和控制，满足了人们对于周围环境的需求。
一般的，空调器内是具有制冷剂的，在空调器正常使用时，其内部的制冷剂是用作热交换的，但是，在空调器废弃或是需要进行研发实验时，需要将其内部的制冷剂去除。
现有技术中，为了将制冷剂去除，一般是直接排掉的，但是，如果只是将制冷剂排放掉，不但会造成极大的浪费，还会对环境带来很大的破坏。
发明内容
本申请提供一种制冷剂的回收系统及其回收方法，用以解决现有技术中将制冷剂放掉会造成极大的浪费，还会对环境带来很大的破坏的缺陷，实现空调器内制冷剂的回收再利用。
本申请提供一种制冷剂的回收系统，包括：
抽气系统，所述抽气系统包括抽气泵、抽气管以及排气管，所述抽气泵分别具有抽气段和排气段，所述抽气段连接于所述抽气管的一端，所述排气段连接于所述排气管的一端；
储气系统，所述储气系统包括储气罐和加气管，所述储气罐分别具有储气段和加气段，所述储气段连接于所述排气管的另一端，所述加气段连接于所述加气管的一端。
根据本申请提供的一种制冷剂的回收系统，所述抽气段、储气段以及加气段均设有闸阀。
根据本申请提供的一种制冷剂的回收系统，所述抽气段、储气段以及加气段均设有止回阀。
根据本申请提供的一种制冷剂的回收系统，所述抽气泵内设有可移动的活塞，所述抽气泵上设有驱动结构，所述抽气泵内位于所述活塞的一侧形成有抽气腔，所述驱动结构的驱动端与活塞的另一侧相连接；所述抽气段和所述排气段分别连通于所述抽气腔，所述抽气段内设有可转动的第一单向阀片，所述第一单向阀片趋向于封堵所述抽气段，所述第一单向阀片仅朝所述抽气腔转动，所述排气段内设有可转动的第二单向阀片，所述第二单向阀片趋向于封堵所述排气段，所述第二单向阀片仅背离所述抽气腔转动。
根据本申请提供的一种制冷剂的回收系统，所述制冷剂的回收系统还包括处理单元，所述抽气段上还设有第一压力检测器和第一流量调节阀，所述第一压力检测器用于检测所述抽气段内的压力，所述处理单元分别与所述第一压力检测器、第一流量调节阀以及所述驱动结构电性连接。
根据本申请提供的一种制冷剂的回收系统，所述制冷剂的回收系统还包括处理单元，所述加气段上还设有质量流量计和第二流量调节阀，所述质量流量计用于检测所述加气段内流通的制冷剂质量，所述处理单元分别与所述质量流量计和第二流量调节阀电性连接。
根据本申请提供的一种制冷剂的回收系统，所述储气罐内设有加压装置，所述加压装置具有加压塞，所述加压塞可移动的设于所述储气罐内，所述储气罐内位于所述加压塞的一侧形成有储气腔，所述储气段和所述加气段分别连通于所述储气腔。
根据本申请提供的一种制冷剂的回收系统，所述制冷剂的回收系统还包括处理单元，所述储气罐上设有第二压力检测器，所述第二压力检测器用于检测所述抽气腔的压力，所述处理单元分别与所述第二压力检测器和 加压装置电性连接。
本申请还提供一种制冷剂的回收方法，包括如上述任一种所述的制冷剂的回收系统，其步骤包括：
储气时，将所述抽气管的另一端连接待放气空调器的二通阀接口或三通阀接口；
打开所述抽气段和储气段的闸阀，并开启所述抽气泵，抽取所述空调器内的冷媒，将冷媒排至所述储气罐；
抽排气完成后，关闭所述抽气段和储气段的闸阀。
根据本申请提供的一种制冷剂的回收方法，所述制冷剂的回收方法还包括：
加气时，将所述加气管的另一端连接待加气空调器的二通阀接口或三通阀接口；
打开所述加气段的闸阀，所述储气泵将储存的制冷剂沿加气段和加气管加入至待加气空调器内；
加气完成后，关闭所述加气段的闸阀，并锁死待加气空调器的二通阀或三通阀。
本申请提供的制冷剂的回收系统及其回收方法，通过抽气系统可将待放气空调器内的制冷剂抽入至储气罐，储气罐可对制冷剂进行存储，并且，根据需要，还可通过加气管将储气罐内的制冷剂加入至待加气空调器内。相较于现有技术给出的制冷剂的排出方法而言，本申请给出的制冷剂的回收系统，可回收制冷剂，避免造成浪费，且不会给环境造成破坏，除此之外，还可将储存的制冷剂再加入至待加气空调器内，实现了制冷剂的回收再利用，且操作方便快捷。
为了更清楚地说明本申请或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请提供的制冷剂的回收系统的结构示意图之一；
图2是本申请提供的制冷剂的回收系统的结构示意图之二；
图3是本申请提供的制冷剂的回收方法的流程示意图之一；
图4是本申请提供的制冷剂的回收方法的流程示意图之二；
附图标记：
10：抽气泵； 101：活塞； 102：驱动结构；
11：抽气段； 111：第一流量调节阀； 112：第一压力检测器；
12：排气段； 20：储气罐； 201：加压塞；
202：加压装置； 203：第二压力检测器； 21：储气段；
22：加气段； 221：质量流量计； 222：第二流量调节阀；
30：抽气管； 40：排气管； 50：加气管；
60：待放气空调器； 71：闸阀； 72：处理单元；
73：止回阀。 。
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请中的附图，对本申请中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
下面结合图1-图4描述本申请的制冷剂的回收系统及其回收方法。
请结合参阅图1和图2，其中，制冷剂的回收系统，包括：
抽气系统，所述抽气系统包括抽气泵10、抽气管30以及排气管40，所述抽气泵10分别具有抽气段11和排气段12，所述抽气段11连接于所述抽气管30的一端，所述排气段12连接于所述排气管40的一端；
储气系统，所述储气系统包括储气罐20和加气管50，所述储气罐20分别具有储气段21和加气段22，所述储气段21连接于所述排气管40的另一端，所述加气段22连接于所述加气管50的一端。
抽气泵10用作将气体从抽气段11一端抽入或吸入，从排气段12一端排出；储气罐20则是用作储存气体的罐体。本实施例给出的制冷剂的回收系统抽取的为空调器内的，并通过各管道的连接将制冷剂抽入至储气 罐20，并且储气罐20上的加气段22还可放出气态制冷剂。
另外，抽气管30用作抽吸待放气空调器60内的制冷剂，其另一端是用作连接空调器室外机的二通阀接口或三通阀接口，为了实现稳定且密封的连接，抽气管30远离抽气泵10的端部具有抽气接口，抽气接口的外周套设有固定螺母，在将抽气接口与二通阀接口或三通阀接口对接后，通过该固定螺母拧紧在二通阀接口或三通阀接口外周的外螺纹，实现固定。另外，加气管50用作向待加气空调器内加入制冷剂，其另一端也是用作连接空调器室外机的二通阀接口或三通阀接口，其连接方式可参考上述抽气管30的抽气接口的连接方式，不作赘述。
此外，抽气管30和排气管40相连接的，抽气管30一段与抽气段11的连接方式可参考其另一端与二通阀接口或三通阀的连接方式，排气管40与排气段12、储气段21的连接方式以及加气管50与加气段22的连接方式，均可参照上述连接方式，不作赘述。
本实施例所给出的抽气段11和排气段12是一体成型于抽气泵10上的，抽气段11和排气段12分别与抽气管30和排气管40可拆连接，当然，在其他实施例中，抽气段11和排气段12也可是分别与抽气管30和排气管40一体的，抽气段11和排气段12与抽气泵10可拆连接；同样的，本实施例所给出的储气段21和加气段22是一体成型于储气罐20上的，储气段21和加气段22分别与排气管40和加气管50可拆连接，当然，在其他实施例中，储气段21和加气段22也可是分别与排气管40和加气管50一体的，储气段21和加气段22与储气罐20可拆连接。
本实施例中，通过抽气系统可将待放气空调器60内的制冷剂抽入至储气罐20，储气罐20可对制冷剂进行存储，并且，根据需要，还可通过加气管50将储气罐20内的制冷剂加入至待加气空调器内。相较于现有技术给出的制冷剂的排出方法而言，本申请给出的制冷剂的回收系统，可回收制冷剂，避免造成浪费，且不会给环境造成破坏，除此之外，还可将储存的制冷剂再加入至待加气空调器内，实现了制冷剂的回收再利用，且操作方便快捷。
请结合参阅图1和图2，本申请一实施例中，所述抽气段11、储气段21以及加气段22均设有闸阀71。
通过在抽气段11上设闸阀71，在无需抽气时，可关闭该闸阀71，避免空气进入，在抽气时则打开该闸阀71，保证制冷剂稳定流动；通过在储气段21上设闸阀71，在抽气时，可保证制冷剂流入至储气罐20内，而在抽气完成后，则可避免制冷剂流出，保证密封储放；通过在加气段22上设闸阀71，可避免制冷剂流出，保证密封储放，并在需要时，打开该闸阀71，以对待加气空调器加气。
本实施例所给的闸阀71通过手动关闭或打开，当然，在其他实施例中，闸阀71上可通过驱动件驱动关闭或打开，驱动件与处理单元72电性连接，以实现自动化的控制。
此外，所述抽气段11、储气段21以及加气段22均设有止回阀73。
止回阀73可保证管道的单向流通，避免回流，通过在抽气端和储气段21设置止回阀73，可保证在储气过程中，制冷剂仅能单向流动至储气罐20，无法回流，提高储气效率；通过在加气段22设置止回阀73，可保证储气罐20在加气过程中，制冷剂仅能单向流动到待加气空调器内，保证加气的量的精确。
请结合参阅图1和图2，本申请一实施例中，所述抽气泵10内设有可移动的活塞101，所述抽气泵10上设有驱动结构102，所述抽气泵10内位于所述活塞101的一侧形成有抽气腔，所述驱动结构102的驱动端与活塞101的另一侧相连接；所述抽气段11和所述排气段12分别连通于所述抽气腔，所述抽气段11内设有可转动的第一单向阀片，所述第一单向阀片趋向于封堵所述抽气段11，所述第一单向阀片仅朝所述抽气腔转动，所述排气段12内设有可转动的第二单向阀片，所述第二单向阀片趋向于封堵所述排气段12，所述第二单向阀片仅背离所述抽气腔转动。
此处给出的抽气泵10抽气的结构，在驱动结构102驱动活塞101运动时，实现抽吸，具体的，在活塞101移动使抽气腔增大时，第一单向阀转动导通抽气段11，第二单向阀封堵排气段12，制冷剂抽入至抽气腔，在活塞101移动使抽气腔减小时，第一单向阀封堵抽气段11，第二单向阀转动导通排气段12，制冷剂排出至储气罐20内，这样，通过活塞101的来回移动，进而可将制冷剂排至储气罐20，以便储存。
在一实施例中，驱动结构102包括驱动杆和手动压杆，驱动杆连接活 塞101阀，手动压杆位于抽气泵10外，通过手动拉压手动压杆即可驱动活塞101移动，实现抽气。
而在本实施例中，驱动结构102可以为自动驱动活塞101移动的结构，如，驱动结构102包括驱动杆和气缸，通过气缸驱动驱动杆伸缩移动，实现抽气。
紧接上述驱动结构102为自动驱动活塞101移动的结构，本申请一实施例中，所述制冷剂的回收系统还包括处理单元72，所述抽气段11上还设有第一压力检测器112和第一流量调节阀111，所述第一压力检测器112用于检测所述抽气段11内的压力，所述处理单元72分别与所述第一压力检测器112、第一流量调节阀111以及所述驱动结构102电性连接。
通过处理单元72处理第一压力检测器112检测的压力信息，并传递控制信息给驱动结构102和第一流量调节阀111，以自动控制活塞101移动和调节抽气段11的抽气流量，以便稳定将空调器内的制冷剂抽出并保证制冷剂的纯度。
请结合参阅图1和图2，此外，本申请一实施例中，所述制冷剂的回收系统还包括处理单元72，所述加气段22上还设有质量流量计221和第二流量调节阀222，所述质量流量计221用于检测所述加气段22内流通的制冷剂质量，所述处理单元72分别与所述质量流量计221和第二流量调节阀222电性连接。
通过处理单元72处理质量流量计221检测的制冷剂质量信息，并传递控制信息给第二流量调节阀222，以自动控制调节加气段22的制冷剂流量，实现对待加气空调器的精准加气。
请结合参阅图1和图2，本申请一实施例中，所述储气罐20内设有加压装置202，所述加压装置202具有加压塞201，所述加压塞201可移动的设于所述储气罐20内，所述储气罐20内位于所述加压塞201的一侧形成有储气腔，所述储气段21和所述加气段22分别连通于所述储气腔。
通过该加压装置202的加压塞201可缩小储气腔的体积，这样，可根据需要增加其内储存的制冷剂的的压力，以便满足加气时的需求。该加压装置202可选为增压泵，当然，在其他实施例中，该加压装置202包括加压驱动杆，加压驱动杆的一端连接加压塞201，另一端伸出储气泵，以此， 可通过手动实现加压。
承接上述的加压结构，所述制冷剂的回收系统还包括处理单元72，所述储气罐20上设有第二压力检测器203，所述第二压力检测器203用于检测所述抽气腔的压力，所述处理单元72分别与所述第二压力检测器203和加压装置202电性连接。
通过处理单元72处理第二压力检测器203检测的抽气腔内的压力信息，并传递控制信息给加压装置202，以自动控制调节储气腔内的压力，保证加气时的制冷剂压力需求。
请结合参阅图1和图2，综合上述，在一实施例中，在储气段21上，沿抽气方向，闸阀71、第一压力检测器112、第一流量调节阀111以及止回阀73依序布置，且第一阀片位于靠近抽气腔的位置，在排气段12上，第二阀片位于靠近抽气腔的位置，以保证制冷剂的稳定抽出；在储气段21上，沿排气方向，闸阀71、止回阀73依序布置，以保证制冷剂的稳定储放；在加气段22上，沿加气方向，止回阀73、闸阀71、第二流量调节阀222以及质量流量计221依序布置，制冷剂的质量检测准确，以保证制冷剂的稳定精准加气。
请结合参阅图2和图3，其次，本申请还提供一种制冷剂的回收方法，包括所述制冷剂的回收系统，其步骤包括：
储气时，将所述抽气管30的另一端连接待放气空调器60的二通阀接口或三通阀接口；
打开所述抽气段11和储气段21的闸阀71，并开启所述抽气泵10，抽取所述空调器内的冷媒，将冷媒排至所述储气罐20；
抽排气完成后，关闭所述抽气段11和储气段21的闸阀71。
通过上述步骤，可保证将待放气空调器60内的制冷剂稳定储放至储气罐20内，避免造成浪费，且不会给环境造成破坏。
另外，在储气时，当第一压力检测器112的压力表显示压力为0时，表明制冷剂已经抽气完毕，空调外机内压力为环境大气压，处理单元72控制第一流量调节阀111关闭，并控制驱动结构102停止抽气泵10工作。进一步的，在一实施例中，当第一压力检测器112的压力表显示压力逐渐减小时，处理单元72控制第一流量调节阀111逐步减小，以保证制冷剂 的稳定流动。
并且，抽排气完成后，需要锁死待放气空调器60的二通阀或三通阀，以避免漏气，这样，在一实施例中，还设有第一警报元件，第一警报元件与处理单元72电性连接，通过第一警报单元可提醒用户及时锁死待放气空调器60的二通阀或三通阀。再者，通过手动或处理单元72控制驱动关闭抽气段11和储气段21的闸阀71，以进一步避免气体流动，保证储气罐20稳定储放制冷剂。
请结合参阅图4，此外，所述制冷剂的回收方法还包括：
加气时，将所述加气管50的另一端连接待加气空调器的二通阀接口或三通阀接口；
打开所述加气段22的闸阀71，所述储气泵将储存的制冷剂沿加气段22和加气管50加入至待加气空调器内；
加气完成后，关闭所述加气段22的闸阀71，并锁死待加气空调器的二通阀或三通阀。
通过上述步骤，可保证将储气罐20内的制冷剂稳定加入至待加气空调器内，实现再利用，节约成本。
另外，在加气时，可根据质量流量计221实时反馈的制冷剂的质量信息，以通过处理单元72调节第二流量阀的大小，实现精准加气，并且，当总流量达到设定数值后，处理单元72控制第二流量阀关闭，停止加气。
并且，在加气完成后，需要锁死待加气空调器的二通阀或三通阀，以避免漏气，这样，在一实施例中，还设有第二警报元件，第二警报元件与处理单元72电性连接，通过第二警报单元可提醒用户及时锁死待加气空调器的二通阀或三通阀。再者，通过手动或处理单元72控制驱动关闭加气段22的闸阀71，以进一步避免气体流动，避免气体漏出。
这样，结合上述实施例，本实施例中，上述处理单元72为同一个，本申请可根据处理单元72来自动控制储气和加气，减少人为干预，提高了储气加气的准确性，同时，提升了储气加气效率。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修 改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。
Claims (10)
- 一种制冷剂的回收系统，其特征在于，包括：抽气系统，所述抽气系统包括抽气泵、抽气管以及排气管，所述抽气泵分别具有抽气段和排气段，所述抽气段连接于所述抽气管的一端，所述排气段连接于所述排气管的一端；储气系统，所述储气系统包括储气罐和加气管，所述储气罐分别具有储气段和加气段，所述储气段连接于所述排气管的另一端，所述加气段连接于所述加气管的一端。
- 根据权利要求1所述的制冷剂的回收系统，其特征在于，所述抽气段、储气段以及加气段均设有闸阀。
- 根据权利要求1所述的制冷剂的回收系统，其特征在于，所述抽气段、储气段以及加气段均设有止回阀。
- 根据权利要求1至3任意一项所述的制冷剂的回收系统，其特征在于，所述抽气泵内设有可移动的活塞，所述抽气泵上设有驱动结构，所述抽气泵内位于所述活塞的一侧形成有抽气腔，所述驱动结构的驱动端与活塞的另一侧相连接；所述抽气段和所述排气段分别连通于所述抽气腔，所述抽气段内设有可转动的第一单向阀片，所述第一单向阀片趋向于封堵所述抽气段，所述第一单向阀片仅朝所述抽气腔转动，所述排气段内设有可转动的第二单向阀片，所述第二单向阀片趋向于封堵所述排气段，所述第二单向阀片仅背离所述抽气腔转动。
- 根据权利要求4所述的制冷剂的回收系统，其特征在于，还包括处理单元，所述抽气段上还设有第一压力检测器和第一流量调节阀，所述第一压力检测器用于检测所述抽气段内的压力，所述处理单元分别与所述第一压力检测器、第一流量调节阀以及所述驱动结构电性连接。
- 根据权利要求1至3任意一项所述的制冷剂的回收系统，其特征在于，还包括处理单元，所述加气段上还设有质量流量计和第二流量调节阀，所述质量流量计用于检测所述加气段内流通的制冷剂质量，所述处理单元分别与所述质量流量计和第二流量调节阀电性连接。
- 根据权利要求1至3任意一项所述的制冷剂的回收系统，其特征在于，所述储气罐内设有加压装置，所述加压装置具有加压塞，所述加压 塞可移动的设于所述储气罐内，所述储气罐内位于所述加压塞的一侧形成有储气腔，所述储气段和所述加气段分别连通于所述储气腔。
- 根据权利要求7所述的制冷剂的回收系统，其特征在于，还包括处理单元，所述储气罐上设有第二压力检测器，所述第二压力检测器用于检测所述抽气腔的压力，所述处理单元分别与所述第二压力检测器和加压装置电性连接。
- 一种制冷剂的回收方法，其特征在于，包括如权利要求1至8任意一项所述的制冷剂的回收系统，其步骤包括：储气时，将所述抽气管的另一端连接待放气空调器的二通阀接口或三通阀接口；打开所述抽气段和储气段的闸阀，并开启所述抽气泵，抽取所述空调器内的冷媒，将冷媒排至所述储气罐；抽排气完成后，关闭所述抽气段和储气段的闸阀。
- 根据权利要求9所述的制冷剂的回收方法，其特征在于，还包括：加气时，将所述加气管的另一端连接待加气空调器的二通阀接口或三通阀接口；打开所述加气段的闸阀，所述储气泵将储存的制冷剂沿加气段和加气管加入至待加气空调器内；加气完成后，关闭所述加气段的闸阀，并锁死待加气空调器的二通阀或三通阀。
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