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A device and method for adjusting electronic expansion valve of refrigeration equipment

An electronic expansion valve, refrigeration equipment technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problem of inconsistent indoor ambient temperature without considering the length of the multi-connected system pipeline, achieve accurate evaporation temperature, and improve comfort. , the effect of energy saving and comfort

Active Publication Date: 2016-01-13
四川启睿克科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to propose a method of adjusting the opening degree of the expansion valve according to the length of the pipeline to adjust the refrigeration equipment electronic Apparatus and method for expansion valve

Method used

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  • A device and method for adjusting electronic expansion valve of refrigeration equipment

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Embodiment 1

[0037] A device for adjusting the opening degree of the electronic expansion valve of the indoor unit of a multi-connected air conditioner, the device includes a pressure detection unit, a calculation unit, a pipeline length judgment unit, and a superheat correction unit, wherein the pressure detection unit detects the outlet pressure of the condenser , condensing pressure, evaporator outlet pressure, inlet pressure, calculate the pressure drop from the condenser to the evaporator through the calculation unit, use the pipeline length judgment unit to judge the length of the pipeline, and the superheat correction unit is used to adjust the superheat Adjust, and at the same time adjust the opening of the electronic expansion valve according to the degree of superheat.

[0038] Of course, the above-mentioned pressure detection unit can also be replaced by a temperature detection unit, and the corresponding saturation pressure value can be deduced from the detected temperature valu...

Embodiment 2

[0040] A method for adjusting the opening degree of an electronic expansion valve of an indoor unit of a multi-connected air conditioner, comprising the following steps:

[0041] When the power is turned on for the first time, all indoor units can be turned on, and the electronic expansion valve can be given the same opening degree, such as 100 steps, 120 steps, that is, 1 step to the maximum number of steps, such as 480 steps;

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Abstract

The invention relates to the automatic control technology, in particular to an automatic adjustment device and an automatic adjustment method of an electronic expansion valve of refrigeration equipment of online type multiple indoor units. The device of adjusting the electronic expansion valve of the refrigeration equipment comprises the electronic expansion valve, a control module, a detection module, a data processing module, a pipe length judging module and a superheat degree correcting module, wherein the electronic expansion valve and the data processing module are respectively connected with the control module, and the detection module, the pipe length judging module and the superheat degree correcting module are respectively connected with the data processing module. The automatic adjustment device and the automatic adjustment method of the electronic expansion valve of the refrigeration equipment of the online type multiple indoor units have the advantages of being capable of adjusting the open degree of the electronic expansion valve according to the length of a pipeline, accurately adjusting or correcting the superheat degree of the electronic expansion valve in real time so as to more accurately control the evaporating temperature, and therefore energy conservation can be achieved and the comport level of a user can be improved. The automatic adjustment device and the automatic adjustment method of the electronic expansion valve of the refrigeration equipment of the online type multiple indoor units are particularly appropriate for adjustment of open degree of the electronic expansion valve of indoor units.

Description

technical field [0001] The invention relates to automatic control technology, in particular to an automatic adjustment device and method for an electronic expansion valve of an on-line multi-indoor refrigeration device. Background technique [0002] As a refrigeration or heating device, air conditioners have become a part of people's lives, improving the comfort of people's lives, but the operation of air conditioners requires more power consumption. The operating cycle of the air conditioner is also longer, and generally there is no problem in running it for 10 years. At present, the multi-connected air conditioners on the market adopt a new technical solution to prevent the refrigerant from drifting when cooling and heating, so as to improve the cooling and heating effect of the system. [0003] For example, the Chinese patent with the application number CN201110255060.4, the patent name is: Control method for preventing refrigerant drift when multi-connected air-conditio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/00F25B49/02
Inventor 钟明李越峰高向军李峰聂红雁
Owner 四川启睿克科技有限公司
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