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Method and device for transferring refrigerant

The technology of a transfer method and transfer device, which is applied in the field of air conditioning, can solve the problems of wasting refrigerant, etc., and achieve the effects of saving maintenance costs and reducing environmental pollution

Active Publication Date: 2019-10-11
NINGBO AUX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a refrigerant transfer method to solve the problem in the prior art that a large amount of refrigerant needs to be wasted during the maintenance of modular multi-line units

Method used

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  • Method and device for transferring refrigerant
  • Method and device for transferring refrigerant
  • Method and device for transferring refrigerant

Examples

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no. 2 example

[0070] see image 3 , which is provided by the preferred embodiment of the present invention figure 1 The schematic diagram of the functional units of the refrigerant transfer device 100 is shown. It should be noted that the basic principles and technical effects of the refrigerant transfer device 100 provided in this embodiment are the same as those of the above-mentioned embodiments. corresponding content in the example. The refrigerant transfer device 100 includes an information acquisition unit 110 , a judgment unit 120 , a power reduction unit 130 , a valve adjustment unit 140 , a state control unit 150 , a pressure value acquisition unit 160 and an operation control unit 170 .

[0071] The information acquiring unit 110 is configured to acquire the identity information of at least one faulty external module.

[0072] It can be understood that step S101 can be executed by the identity information acquiring module.

[0073] The information acquiring unit 110 is also co...

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Abstract

The invention provides a refrigerant transfer method and device and relates to the technical field of air conditioners. The method comprises the following steps: firstly, acquiring identity information of failure outdoor unit modules; then controlling four-way valves included in the failure outdoor unit modules to be in an electrified state and four-way valves of normal outdoor unit modules exceptthe failure outdoor unit modules to be in a power down state; acquiring the internal pressure values of the failure outdoor unit modules after working for a period of time; and if the pressure valueof each of the failure outdoor unit modules is smaller than or equal to a preset pressure value; closing a refrigerant valve included in a failure outdoor unit, and controlling the failure outdoor unit modules and the normal outdoor unit modules to stop working. According to the refrigerant transfer method and device provided by the invention, waste of the refrigerant is not caused when the failure outdoor unit modules are maintained, the maintenance cost is saved, and meanwhile, the environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a refrigerant transfer method and device. Background technique [0002] Modular multi-split is a large-scale refrigeration equipment that combines several large-capacity external units to drive more internal units for cooling or heating. System engineering is widely used, often used in office buildings, restaurants, large hotels and other places. At present, the most outdoor units in the industry can be combined with 4 external unit modules, and there are as many as hundreds of indoor units. Generally, the larger systems are filled with nearly hundreds of kilograms of refrigerant. [0003] However, in the long-term operation of this large-scale combined refrigeration equipment, it is inevitable that some system accessories will be damaged, which will cause the combined large-scale refrigeration equipment to fail to work normally. When there is a failure of system acces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/32F24F11/84F25B45/00
Inventor 侯丽峰秦宪赵攀王鸿
Owner NINGBO AUX ELECTRIC