Air-conditioning system with refrigerant reclaiming function

A refrigerant recovery and air-conditioning system technology, applied in the direction of refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of insufficient refrigerant recovery, affecting the performance of air conditioners, etc., to avoid insufficient recovery, reduce maintenance costs, The effect of reducing emissions

Active Publication Date: 2011-04-27
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that the traditional refrigerant recovery method easily leads to insufficient refrigerant recovery or affects the performance of the air conditioner, the present invention proposes an air conditioning system with a refrigerant recovery function, which provides convenience for maintenance personnel to perform refrigerant recovery operations

Method used

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  • Air-conditioning system with refrigerant reclaiming function

Examples

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Embodiment 1

[0030] Embodiment 1: The refrigerant recovery working mode is added in the air conditioning system. The entry of this working mode can be realized by switching the maintenance switch installed on the outdoor unit to the newly added "refrigerant recovery" position, or by triggering the maintenance The corresponding function keys on the remote controller dedicated to personnel are used for remote access. This embodiment is not limited to the above two methods.

[0031] When the maintenance personnel are performing maintenance work on the air conditioning system, if they need to recover the refrigerant in the indoor unit to the outdoor unit, the maintenance personnel can first cut off the liquid pipe connected between the indoor unit and the outdoor unit , this process can be realized by maintenance personnel manually closing the operating valve CF1 installed on the liquid pipe, such as figure 1 As shown, then, the maintenance personnel toggles the maintenance switch or triggers ...

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Abstract

The invention discloses an air-conditioning system with refrigerant reclaiming function. The air-conditioning system comprises a refrigerating cycle system, wherein the refrigerating cycle system at least consists of a compressor, a condenser, an evaporator and an electronic expansion valve or a throttling capillary; when the air-conditioning system enters a refrigerant reclaiming work mode, a liquid pipe connected between an indoor unit and an outdoor unit of an air-conditioner is cut off; then, the air-conditioning system automatically performs refrigerating operation, and for the air-conditioning system, the indoor unit of which the electronic expansion valve is arranged in, the electronic expansion valve in the indoor unit is opened at the same time; and after the refrigerant is totally reclaimed to the outdoor unit from the indoor unit, an air pipe connected between the indoor unit and the outdoor unit is cut off, the air-conditioning system is controlled to stop, and the refrigerant reclaiming process is finished. Because of the refrigerant reclaiming function, the air-conditioning system is convenient for maintenance personnel to safely and reliably reclaim the refrigerant, avoids the problems of incomplete refrigerant reclamation or compressor fault and the like, reduces the discharge of the refrigerant, and reduces the maintenance cost.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning equipment, and in particular relates to an air-conditioning system with a refrigerant recovery function. Background technique [0002] In the maintenance process of current air conditioners, if it is necessary to recover the refrigerant (ie, refrigerant) in the indoor unit, most of them use special refrigerant recovery equipment or rely on the experience of maintenance personnel to recover the refrigerant. [0003] When special refrigerant recovery equipment is used to recover the refrigerant in the indoor unit of the air conditioner, the composition of the refrigerant from different manufacturers is not the same, which makes the refrigerant in the recovery equipment impure. In addition, when the same recovery equipment is used to recover refrigerant from different air conditioners, part of the lubricating oil in the compressor of the air conditioner will be recovered together, because th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F25B45/00
Inventor 刘金涛吴林涛
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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