Control method of air-conditioning system and air-conditioning system

A control method and technology for an air-conditioning system, which are applied in the control of air-conditioning systems and in the field of air-conditioning systems, can solve the problems of poor reliability, low control precision, and high operating economic costs of the air-conditioning system, improve reliability, avoid suction with liquid, and control The effect of improved accuracy

Active Publication Date: 2016-03-23
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above control method is mainly to control the degree of superheat (including suction and exhaust superheat). In practical application, this method has defects such as low control precision and narrow control signal range, which will lead to poor reliability of the air conditioning system and economic cost of operation. Advanced problems need to be solved urgently

Method used

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  • Control method of air-conditioning system and air-conditioning system
  • Control method of air-conditioning system and air-conditioning system
  • Control method of air-conditioning system and air-conditioning system

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Embodiment 1

[0038] The preferred embodiment discloses an air-conditioning system and a control method for the air-conditioning system. The air-conditioning system includes a compressor, a condenser, a flooded evaporator, an electronic expansion valve, a detection device, and an operation control module, wherein the detection device includes a compressor load monitoring unit for detecting the compressor load value Q, installed in the evaporator The first temperature sensor (chilled water outlet temperature sensor) for detecting the chilled water outlet temperature value T1 at the water outlet, and the second temperature sensor (cooling water outlet temperature sensor) for detecting the cooling water inlet temperature value T3 respectively installed at the condenser water inlet and outlet Water inlet temperature sensor) and the third temperature sensor (cooling water outlet temperature sensor) for detecting the cooling water outlet temperature T4, and the first pressure sensor and the first ...

Embodiment 2

[0055] The preferred embodiment discloses an air-conditioning system and a control method for the air-conditioning system. The structure of the air-conditioning system is the same as that described in the preferred embodiment 1, and will not be repeated here.

[0056] The control method of the air conditioning system is basically the same as that described in the first preferred embodiment. The control method of the air conditioning system is to obtain the calculation model of the opening degree of the electronic expansion valve through the temperature parameter values ​​of the evaporator and the condenser respectively detected by the detection device, the load value of the compressor and the preset target heat exchange temperature difference of the evaporator; the operation control module Calculate and control the opening of the electronic expansion valve in real time according to the calculation model of the opening of the electronic expansion valve, wherein the temperature ...

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Abstract

The invention discloses a control method of an air-conditioning system and the air-conditioning system, belonging to the field of a temperature adjusting device and a control method thereof. The air-conditioning system is designed for solving the problem that an electronic expansion valve of a conventional air-conditioning system is low in control accuracy. The control method of the air-conditioning system comprises the steps of: detecting temperature parameter values of an evaporator and a condenser, a loading value of a compressor and a preset target heat transfer temperature difference value of the evaporator by using a detection device to obtain a calculation model of the opening of the electronic expansion valve; and computing and controlling the opening of the electronic expansion valve in real time by using a computing control module according to the calculation model of the opening of the electronic expansion valve. The air-conditioning system comprises the detection device and the computing control module. The control method of the air-conditioning system can improve the control accuracy of the electronic control valve and ensure the balance between the liquid supplying volume of the electronic control valve and the actual load. The air-conditioning system is reliable in operation, low in operation cost and good in user experience.

Description

technical field [0001] The invention relates to the field of a temperature adjustment device and a control method thereof, in particular to a control method of an air-conditioning system and an air-conditioning system for realizing the method. Background technique [0002] The air-conditioning system includes at least a compressor, a condenser, an electronic expansion valve, and an evaporator. Among them, the electronic expansion valve has the characteristics of throttling, large flow adjustment range, and intelligent control. It is the most important and ideal air-conditioning system. throttling components. [0003] There is an existing control method for an air-conditioning system. The control method specifically includes: the electronic expansion valve is started and initialized, and the controller sets the opening of the electronic expansion valve to a predetermined initial value; The actual superheat of the expansion valve; the controller compares the actual superheat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/62F24F11/64F24F11/83F24F11/84F24F2110/00F24F2140/12F24F2140/20
Inventor 龙忠铿张丙罗炽亮吴宏择陈耿松李莹
Owner GREE ELECTRIC APPLIANCES INC
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