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Recycling method and recycling system for air conditioner coolant

A recovery method and technology of a recovery system, which is applied in the recovery system of air conditioner refrigerant and the field of recovery of air conditioner refrigerant, can solve problems such as inability to complete refrigerant recovery work, system over-high protection, etc., to avoid high recovery costs and misoperation problem effect

Active Publication Date: 2014-09-03
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology

The solution proposed in the related art is to judge that the refrigerant recovery is completed when the low-pressure pressure of the compressor reaches a lower value, so that the system will always be in the recovery operation until the system has a high-voltage or over-current protection. It can be seen that the related technology proposes The refrigerant recovery scheme cannot complete the refrigerant recovery work

Method used

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  • Recycling method and recycling system for air conditioner coolant
  • Recycling method and recycling system for air conditioner coolant
  • Recycling method and recycling system for air conditioner coolant

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Embodiment Construction

[0042] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0044] The air conditioner described in the embodiments of the present invention includes an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are connected with gas pipes and...

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Abstract

The invention provides a recycling method and a recycling system for an air conditioner coolant. The recycling method comprises the steps of closing a liquid pipe when receiving a coolant recycling instruction; controlling an air conditioner to work in a refrigeration mode if the coolant is required to be recycled to an outdoor unit according to the recycling instruction, closing an air pipe when the time that the air exhaust temperature of a compressor is higher than or equal to a first preset temperature value is detected to reach first preset time, and controlling the air conditioner to stop working; controlling the air conditioner to work in a heating mode if the coolant is required to be recycled to an indoor unit according to a recycling instruction, closing the air pipe when the time that the air exhaust temperature of the compressor is higher than or equal to a second preset temperature value is detected to reach second preset time, and controlling the air conditioner to stop working. According to the technical scheme, the coolant can be flexibly selected to be recycled to the indoor unit or the outdoor unit, so that the recycled coolant is high in quality, and whether recycling of the coolant is finished can be accurately detected.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner refrigerant recovery method and an air conditioner refrigerant recovery system. Background technique [0002] At present, during the maintenance process of the air conditioner, special refrigerant recovery equipment is usually used or the maintenance personnel recover the refrigerant. [0003] When using special refrigerant recovery equipment to recover the refrigerant in the air conditioner system, the refrigerant composition in different manufacturers is not the same, resulting in impure refrigerant in the recovery equipment. In addition, when the recovery equipment is used to recover the refrigerant in the air conditioner system, part of the refrigeration oil in the air conditioner system will also be recovered into the equipment. If the same recovery equipment is used to recover the refrigerant in different air conditioner systems, due to different...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F25B41/06F25B45/00F25B41/34
Inventor 马熙华胡伟龙熊美兵许永锋杨胜刘基发
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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