Unlock instant, AI-driven research and patent intelligence for your innovation.

Air conditioning system control method and device

An air-conditioning system and control method technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problem that the exhaust protection cannot be opened again, and achieve the effect of avoiding the inability to open again and improving stability

Active Publication Date: 2018-11-30
GREE ELECTRIC APPLIANCES INC
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an air conditioning system control method and device to at least solve the problem in the related art that the refrigerating unit cannot be turned on again due to exhaust protection when the refrigerating unit is evacuated and shut down

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air conditioning system control method and device
  • Air conditioning system control method and device
  • Air conditioning system control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment provides a method for controlling an air-conditioning system. Before describing the method, the air-conditioning system in this embodiment will be described first. figure 1 is a schematic diagram of the air conditioning system in this embodiment, as figure 1 As shown, the air conditioning system includes: a compressor 11 , a condenser 12 , an electronic expansion valve 13 , a liquid supply solenoid valve 14 , an evaporator 15 , a low pressure sensor 16 and a temperature tester 17 . In this embodiment, the low pressure sensor 16 can detect the suction pressure of the compressor 11 sucking air from the evaporator 15 , and the temperature tester 17 can detect the suction temperature of the compressor 11 sucking air from the evaporator 15 . figure 2 It is a flow chart of the air conditioning system control method provided by this embodiment, such as figure 2 As shown, the method includes the following processing:

[0022] Step 201: Detect the suction pre...

Embodiment 2

[0045] This embodiment provides an air conditioning system control device, which is used to implement the above air conditioning system control method, Figure 4 is the block diagram of the device, as Figure 4 As shown, the device includes the following components:

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

No PUM Login to View More

Abstract

The invention provides an air conditioner system control method and device. The problems that in the related technology, during evacuation stopping of a refrigerating unit, exhaust protection appears,and consequently the refrigerating unit cannot be started again are at least solved. The disclosed air conditioner system control method comprises the steps that when the refrigerating unit is in theevacuation stopping state, the air suction pressure and air suction temperature of a compressor are detected; according to the air suction temperature, the first relative relation of the current airsuction superheat degree of the compressor and the target air suction superheat degree is determined, and the second relative relation of the air suction pressure and the target air suction pressure is determined; and according to the first relative relation and the second relative relation, the compressor is controlled, and / or an expansion valve is controlled to adjust the opening degree. Throughthe air conditioner system control method and device, the stability of an air conditioner system is improved.

Description

technical field [0001] The present invention relates to the technical field of air-conditioning systems, in particular to an air-conditioning system control method and device. Background technique [0002] At present, when the compressor of the small cold storage complete set is in the shutdown state, and the compressor is evacuated and shut down, the liquid supply solenoid valve is synchronously controlled to close and the electronic valve expansion valve is adjusted to the minimum opening. At this time, the suction superheat of the unit will be too high , the compressor has exhaust protection and the suction pressure is too low. When the unit starts up again, the opening of the expansion valve is the smallest and the solenoid valve is opened, so the refrigerant cannot pass through the electronic expansion valve quickly, causing the low pressure of the compressor to be lower than the pressure set value required for starting for a long time, and the low pressure of the unit ...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F25B1/00F25B49/02
CPCF25B1/00F25B49/02F25B49/022F25B2600/2513F25B2700/1933F25B2700/21151
Inventor 李福良杨虹卫广穹
Owner GREE ELECTRIC APPLIANCES INC