Air source heat pump hot water chiller control method, device and air conditioning system

A technology for air source heat pumps and water chillers, which is applied in the direction of heat pumps, refrigerators, refrigeration components, etc., can solve problems affecting the stable operation of the unit, achieve the effect of solving the problem of suction with liquid and ensuring stable operation

Active Publication Date: 2021-11-16
GREE ELECTRIC APPLIANCES INC
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a control method, device and air conditioning system for an air source heat pump heat chiller unit, which can effectively solve the problem of air suction of the compressor, which affects the stable operation of the unit. The technical effect of ensuring the stable operation of the unit due to the problem of liquid

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  • Air source heat pump hot water chiller control method, device and air conditioning system
  • Air source heat pump hot water chiller control method, device and air conditioning system
  • Air source heat pump hot water chiller control method, device and air conditioning system

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0041] In one embodiment, such as figure 1 As shown, an air source heat pump thermal chiller control method is provided, including:

[0042] Step S200: Obtain the liquid level value detected inside the gas-liquid separator of the air source heat pump heat-chiller unit.

[0043] Specifically, a liquid level detection device may be provided inside the gas-liquid separator, and the liquid level detection device may be connected with a controller. During the operation of the air source heat pump chiller, the liquid level detection device is used to monitor the liquid level i...

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Abstract

The present application relates to a control method, device and air-conditioning system of an air source heat pump thermal water chiller. When it is equal to the preset liquid level threshold, the pressurizing device is controlled to perform liquid extraction and air injection action on the gas-liquid separator; wherein, when the pressurization device performs the liquid extraction and air injection action, the excess liquid refrigerant in the gas-liquid separator flows back to the air source heat pump heat The plate-exchanged economizer of the chiller completes the heat exchange. By monitoring the internal liquid level of the gas-liquid separator, when the liquid level value is greater than or equal to the preset liquid level threshold, the pressurization device is controlled to perform the liquid injection action on the gas-liquid separator, so that the excess liquid refrigerant in the gas-liquid separator The plate-exchanged economizer of the air-source heat pump heat-chiller completes the heat exchange, which can effectively solve the problem of compressor suction with liquid and ensure the stable operation of the unit.

Description

technical field [0001] The present application relates to the technical field of electrical equipment control, in particular to an air source heat pump heat chiller control method, device and air conditioning system. Background technique [0002] With the development of science and technology and the continuous progress of society, more and more electrical equipment appears in people's daily work and life. In the field of air conditioning, especially in the field of ultra-low temperature air source heat pumps, air conditioning equipment needs to take into account both cooling and heating conditions. The operating range of the unit covers a wide range, and the compressor changes greatly. It is already difficult to take into account the maximum / minimum circulation flow through the conventional gas-liquid separator. In actual operation, it is found that in the extreme working conditions such as defrosting process and compressor load change, the compressor has the problem of suc...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F25B49/02F25B43/00F25B30/06F25B41/31F25B41/40
CPCF25B30/06F25B43/006F25B49/02F25B2400/13F25B2400/23F25B2600/2513
Inventor郑神安张鸿宙何建发黎俊
OwnerGREE ELECTRIC APPLIANCES INC