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Control method and device for air-conditioning system

A technology of air conditioning system and control method, which is applied in the field of automation and can solve the problems of low heating capacity at low temperatures and the like

Active Publication Date: 2016-04-27
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The inventors of the present application found in the research process that: replacing the original compressor with an enthalpy-injecting compressor and using an air-conditioning system including an enthalpy-injecting compressor can solve the low-temperature heating capacity of the air-conditioning system when the external temperature is low low problem

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  • Control method and device for air-conditioning system
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  • Control method and device for air-conditioning system

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Embodiment Construction

[0065] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0066] see figure 1 , is an air-conditioning system with an enthalpy injection compressor.

[0067] The air conditioning system includes: temperature sensor 101, enthalpy injection compressor 102, enthalpy increasing valve 103, oil separator 104, four-way valve 105, outdoor heat exchanger 106, heating electronic expansion valve 107, subcooler electronic expansion valve 108, Subcooler 109 , subcooling valve 110 , first pressure sensor 111 , second pressure sensor 112 , gas-liquid se...

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Abstract

The invention provides a control method and a control device for an air-conditioning system. The control device is characterized by being a controller applied to the air-conditioning system. The method comprises the following steps: before receiving a heating starting instruction, utilizing a temperature sensor mounted on a housing of a spraying enthalpy compressor to continuously acquire a housing temperature of the spraying enthalpy compressor; when the housing temperature is smaller than a first temperature value, conveying preset current to a stator winding in the spraying enthalpy compressor; and when the housing temperature is greater than a second temperature value, stopping conveying preset current to the stator winding in the spraying enthalpy compressor, wherein the first temperature value is smaller than the second temperature value. The spraying enthalpy compressor comprises the stator winding, an oil tank, a compression cavity and a housing, which are adjacent to one another, so that heat generated by the stator winding can be transmitted to the oil tank, the compression cavity and the housing through heat exchange effect. A stator winding hating mode is adopted, so that the problems of oil shortage and low-temperature effusion of the spraying enthalpy compressor can be solved.

Description

technical field [0001] The present application relates to the technical field of automation, and in particular to a control method and device for an air conditioning system. Background technique [0002] Generally speaking, the air conditioner structure is mainly composed of two parts: an outdoor unit installed outdoors and an indoor unit installed indoors. The outer unit mainly includes a compressor, an oil separator, a gas-liquid separator and an outdoor heat exchanger (also called a condenser) ), the internal unit mainly includes an indoor heat exchanger (also called an evaporator), and refrigerant circulates between the external unit and the internal unit. The refrigerant can be converted in different forms (gas or liquid) between the external unit and the internal unit, so as to achieve the purpose of cooling or heating. [0003] Since the outdoor unit is installed outdoors, the outdoor unit is easily affected by the ambient temperature. When the ambient temperature d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/00F24F11/02F25B41/04F25B41/06F25B41/20F25B41/30
CPCF24F11/30F24F11/89F25B2313/031F25B41/26F25B41/31
Inventor 冯涛李立民焦华超曹世皇
Owner GREE ELECTRIC APPLIANCES INC
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