Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Virtual detection method and device for discharge pressure and back pressure of compressor

A technology of exhaust pressure and return air pressure, applied in refrigerators, refrigeration and liquefaction, refrigeration safety arrangements, etc., can solve problems such as restricted application, refrigerant leakage, system instability, etc., and achieve the effect of convenient detection process and low cost

Active Publication Date: 2016-04-06
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the pressure parameter is an indispensable parameter for analyzing the performance of the air-conditioning system. Because the pressure detection equipment is relatively expensive, its application in the air-conditioning system is limited.
At the same time, because the pressure detection equipment often needs to cut the pipeline to detect the pipeline pressure, this brings problems such as system instability and refrigerant leakage.

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
  • Virtual detection method and device for discharge pressure and back pressure of compressor
  • Virtual detection method and device for discharge pressure and back pressure of compressor
  • Virtual detection method and device for discharge pressure and back pressure of compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0041] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0042] figure 1 A schematic flowchart of a virtual detection method for the discharge pressure of a compressor in a refrigeration system according to an embodiment of the present invention is shown....

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 a virtual detection method and device for discharge pressure and back pressure of a compressor in a refrigerating system. The refrigerating system at least comprises an indoor heat exchanger, an outdoor heat exchanger and the compressor; the virtual detection method for the discharge pressure of the compressor comprises the steps that the saturated steam temperature in the outdoor heat exchanger is obtained; according to the saturated steam temperature in the outdoor heat exchanger, the saturated vapor pressure in the outdoor heat exchanger is determined; according to the pressure drop formula of the refrigerating system, the pressure drop value between the discharge pressure of the compressor and the saturated vapor pressure in the outdoor heat exchanger is calculated; and according to the pressure drop value and the saturated vapor pressure in the outdoor heat exchanger, the discharge pressure of the compressor is calculated. According to the technical scheme, the cost is low, detection can be carried out without cutting a pipe of the refrigerating system open, and the detection process is convenient and simple.

Description

technical field [0001] The present invention relates to the technical field of refrigeration systems, in particular, to a method for virtual detection of the exhaust pressure of a compressor in a refrigeration system, a method for virtual detection of the return pressure of a compressor in a refrigeration system, and a method for detecting the exhaust pressure of a compressor in a refrigeration system. A virtual detection device for the discharge pressure and return pressure of the compressor. Background technique [0002] The pressure parameters during the operation of the air conditioning system are very important to analyze the status of the entire system, and are usually used to judge the degree of subcooling, superheat and air conditioner fault diagnosis. In addition, the pressure parameter is an indispensable parameter for analyzing the performance of the air-conditioning system. Because the pressure detection equipment is relatively expensive, its application in the a...

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 Applications(China)
IPC IPC(8): F25B49/02G06F17/50
CPCF25B49/022F25B2700/1931G06F30/367
Inventor 宋分平侯泽飞
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com