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

Testing method of thermal performance of partial phase change refrigeration compressor

A technology for refrigeration compressors and testing methods, which is applied in the testing of machine/structural components, pump testing, liquid variable capacity machinery, etc. Effect

Inactive Publication Date: 2010-06-02
BEIHANG UNIV
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these test methods contain many components and are expensive

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
  • Testing method of thermal performance of partial phase change refrigeration compressor
  • Testing method of thermal performance of partial phase change refrigeration compressor
  • Testing method of thermal performance of partial phase change refrigeration compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] A hermetic centrifugal refrigeration compressor 1 was tested by using the test method provided by the present invention, and the refrigerant was RC318. The evaporating temperature of compressor 1 is 5°C, the condensation temperature is 55°C, and the inlet parameters of refrigeration compressor 1 after driving are pressure P3=0.156MPa and temperature T3=10°C. Such as figure 2 As shown, after being compressed by the compressor 1, the high-pressure and high-temperature gas enters the cooling stage for cooling by the condenser 2, and the cooling water in the condenser 2 cools the high-pressure and high-temperature gas into a high-pressure liquid, and the outlet pressure of the cooled high-pressure liquid is P1=0.739MPa , the temperature is T1=50°C, the high-pressure liquid is decompressed through the expansion valve 3 of the throttling and decompression link, so that its pressure is a low-pressure two-phase fluid of P2=0.156Mpa. Injection device 4, then the low-temperatur...

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 discloses a testing method of the thermal performance of a partial phase change refrigeration compressor. High-temperature high-pressure gas at the outlet of the refrigeration compressor is cooled by a cooling link to form high-pressure liquid which is further cooled into low-pressure low-temperature two-phase liquid by a throttling pressure-reduction link; gas separated from the two-phase liquid after a gas-liquid separating / charging link enters the compressor inlet; if the parameters of the gas at the compressor inlet satisfy the testing requirement values of the compressor, the performance parameters of the refrigeration compressor are calculated by the degrees of supercooling and superheat through a pressure-enthalpy chart of a refrigeration working medium; and if the parameters of the gas at the compressor inlet do not satisfy the testing requirement values of the compressor, the parameters of the cooling link and the throttling pressure-reduction link are adjusted until the inlet parameters of the refrigeration compressor satisfy the testing requirements. The testing method has simple flows, is convenient to adjust and has low cost by adopting less parts.

Description

technical field [0001] The invention belongs to the technical field of thermal performance measurement of refrigeration compressors. It specifically relates to the thermal performance test method of some phase-change refrigeration compressors. Background technique [0002] The refrigeration compressor is the core component of the vapor compression refrigeration device. In order to obtain the performance parameters of the compressor, it is necessary to conduct a thermal performance test. For the thermal performance test methods of refrigeration compressors, there are many test methods recommended by ISO917-1987, such as the second refrigerant quantity heater method, the flooded refrigerant quantity heater method, the dry refrigerant quantity heater method, and the suction pipe test method. Refrigerant gas flowmeter method, refrigerant liquid flowmeter method, water-cooled condenser calorimeter method, refrigerant gas cooling method and compressor discharge pipe calorimeter ...

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): F04B51/00G01M19/00G01M99/00
Inventor 张兴娟袁修干高峰
Owner BEIHANG UNIV
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