Refrigerant recovery device

By designing a refrigerant recovery device including an air storage tank, a piston plate, a reversing member and a linkage mechanism, the problem of air mixing into the recovery tank in the pipeline is solved, and high-purity recovery and automatic control of refrigerant are realized.

CN119374277BActive Publication Date: 2025-04-04NANJING METRO EQUIPMENT OPERATION & MAINTENANCE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411942914.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-04-04
Estimated Expiration
2044-12-27

AI Technical Summary

Technical Problem

During the refrigerant recovery process of subway air conditioning systems, the air in the pipeline is easily mixed into the recovery tank, affecting the purity of the refrigerant and the normal operation of the air conditioning system.

Method used

A refrigerant recovery device is designed, including a gas storage tank, a piston plate, a reversing member and a linkage mechanism. The air in the pipeline is introduced into the air storage chamber through the first flow channel, and the piston plate pushes the linkage mechanism to move the reversing member from the first position to the second position, realizing the discharge of air and the recovery of refrigerant.

Benefits of technology

It effectively prevents air from entering the recycling tank, improves the purity and recycling quality of the refrigerant, simplifies the operation process, and reduces the requirements for staff skill proficiency.

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Abstract

The present invention provides a refrigerant recovery device, which belongs to the technical field of air conditioning maintenance, including an air storage tank arranged between a refrigerant recovery machine and a recovery tank; the air storage tank has a first flow channel and a second flow channel, the second flow channel connects the pipeline and the recovery tank; a piston plate is slidably arranged in the air storage tank, the piston plate has a first side surface and a second side surface arranged oppositely, the first side surface and the inner side surface of the air storage tank enclose an air storage cavity, and the first flow channel connects the pipeline and the air storage cavity; a reversing member is slidably arranged on the extension path of the first flow channel and the second flow channel; the reversing member has a first position for opening the first flow channel and closing the second flow channel, and also has a second position for closing the first flow channel and opening the second flow channel; a linkage mechanism is slidably arranged in the air storage tank; the linkage mechanism has a control part and a trigger part, the control part abuts against the reversing member, and the trigger part is located in the air storage tank and faces the second side surface. The refrigerant recovery device provided by the present invention can prevent the air in the pipeline from entering the recovery tank.
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