Method and device for controlling air source heat pump water heater/chiller unit, 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: 2021-02-26
GREE ELECTRIC APPLIANCES INC
View PDF18 Cites 0 Cited by
- Summary
- Abstract
- 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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
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...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The application relates to a method and device for controlling an air source heat pump water heater / chiller unit, and an air conditioning system. The method comprises the steps of acquiring a liquid level value obtained by detecting the interior of a vapor-liquid separator of the air source heat pump water heater / chiller unit, and controlling a pressure device to execute liquid removal and vapor injection actions on the vapor-liquid separator when the liquid level value is greater than or equal to a preset liquid level threshold value, wherein excess liquid refrigerants of the vapor-liquid separator flow back to a plate heat exchange economizer of the air source heat pump water heater / chiller unit to complete heat exchange when the pressure device executes the liquid removal and vapor injection actions. By monitoring a liquid level in the vapor-liquid separator, the pressure device is controlled to execute the liquid removal and vapor injection actions when the liquid level value is greater than or equal to the preset liquid level threshold value, so that the excess liquid refrigerants of the vapor-liquid separator can flow back to the plate heat exchange economizer of the air source heat pump water heater / chiller unit to complete the heat exchange. Therefore, the problem of liquid entrainment during vapor suction of a compressor can be effectively solved, and stable operationof the unit is guaranteed.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & AuthorityApplications(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