Adjusting method and adjusting device of electronic expansion valve for air conditioning unit

A technology for electronic expansion valves and air-conditioning units, which is applied in applications, household heating, heating methods, etc., and can solve the problem of large differences between the initial opening and optimal openings, the long time required to adjust the electronic expansion valve, and air-conditioning units. Problems such as poor running status can be achieved to speed up opening adjustment, reduce the time required, and improve reliability

Active Publication Date: 2014-01-15
珠海格力机电工程有限公司
View PDF4 Cites 89 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since the initial opening of the electronic expansion valve is determined by experience, in the actual working process of the air conditioning unit, there will inevitably be a large difference between the initial opening and the optimal opening, resulting in the adjustment of the electronic expansion valve from the initial opening to It takes a

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
  • Adjusting method and adjusting device of electronic expansion valve for air conditioning unit
  • Adjusting method and adjusting device of electronic expansion valve for air conditioning unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The invention provides a method for adjusting an electronic expansion valve used in an air-conditioning unit, which reduces the time required for adjusting the electronic expansion valve, and further improves the operating reliability of the air-conditioning unit.

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] Please refer to the attached figure 1 , figure 1 It is a schematic flowchart of a method for adjusting an electronic expansion valve for an air-conditioning unit provided by an embodim...

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 adjusting method of an electronic expansion valve for an air conditioning unit. The method comprises the steps of detecting indoor environment temperature Ti, outdoor environment temperature To and compressor running frequency f when the air conditioning unit is stared and runs, determining the initial opening degree P1 of the electronic expansion valve through the formula of P1= A*Ti + B*To + C*f + D, controlling the initial opening degree of the electronic expansion valve according to the P1, detecting the actual exhaust gas temperature T of a compressor after the air conditioning unit runs stably, enabling the electronic expansion valve to maintain a current opening degree state when the T is in an optimum target exhaust gas temperature range, reducing the opening degree of the electronic expansion valve when the T is lower than the lower limiting value of the optimum target exhaust gas temperature range, increasing the opening degree of the electronic expansion valve when the T is higher than the upper limiting value of the optimum target exhaust gas temperature range, and returning to a former step. The adjusting method reduces the time needed for adjusting the electronic expansion valve, and improves the reliability of the running of the air conditioning unit. The invention further provides an adjusting device of the electronic expansion valve for the air conditioning unit.

Description

technical field [0001] The invention relates to the technical field of adjusting the opening degree of an electronic expansion valve of an air-conditioning unit, and more specifically relates to an adjusting method and an adjusting device for an electronic expansion valve used in an air-conditioning unit. Background technique [0002] With the continuous development of industry and economy, air conditioners are gradually being widely used. Air conditioners mainly include compressors, condensers, evaporators, throttling devices, and electronic expansion valves. Among them, the electronic expansion valve mainly plays a throttling role in the air conditioning unit and is installed between the condenser and the evaporator. The quality of electronic expansion valve adjustment is directly related to the reliability of air conditioning unit operation. [0003] At present, the method of adjusting the electronic expansion valve in most air-conditioning units is as follows: [0004...

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
IPC IPC(8): F24F11/00
Inventor 胡朝发曹勇
Owner 珠海格力机电工程有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap