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

Air-conditioning refrigeration system and oil return control method of air-conditioning refrigeration system

A technology for air-conditioning refrigeration and oil return control, which is used in refrigerators, refrigeration components, refrigeration and liquefaction, etc., and can solve problems such as difficulty in oil return

Active Publication Date: 2020-11-13
博世热力技术(上海)有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of this application is to provide an air-conditioning and refrigeration system that can solve the aforementioned problem of difficult oil return and has a simple structure

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 refrigeration system and oil return control method of air-conditioning refrigeration system
  • Air-conditioning refrigeration system and oil return control method of air-conditioning refrigeration system
  • Air-conditioning refrigeration system and oil return control method of air-conditioning refrigeration system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] In order to help those skilled in the art to understand exactly the subject matter claimed in the present application, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0032] like figure 1 As shown, the present application provides an air conditioning and refrigeration system, including a compressor 1, a condenser 2, a throttle unit 4 and a plate evaporator 3 that are connected in sequence, and the refrigerant is driven by the compressor 1 to circulate in the air conditioning and refrigeration system, compressor 2, throttling unit 4, plate evaporator 3, and then return to the compressor 1, the air conditioning and refrigeration system also includes a system control unit 5, and the system control unit 5 further includes a throttle control module 51 and a unit control module 52. The flow control module 51 adjusts the opening of the valve member in the throttle unit 4 according to the parameter...

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 an air conditioner refrigeration system and an oil return control method for the air conditioner refrigeration system. The air conditioner refrigeration system comprises a compressor (1), a condenser (2), a throttling unit (4) and a plate evaporator (3) which sequentially communicate with one another. A refrigerant is driven by the compressor (1) to circulate in the air conditioner refrigeration system and returns to the compressor (1) through the condenser (2), the throttling unit (4) and the plate evaporator (3). The air conditioner refrigeration system further comprises a system control unit (5). The system control unit (5) comprises a throttling control module (51) and a unit control module (52). The throttling control module (51) adjusts the opening of a valve in the throttling unit (4) according to suction vapor superheat and exhaust superheat parameters of the air conditioner refrigeration system, and the unit control module (52) controls operation of the compressor (1) according to the suction vapor superheat and exhaust superheat parameters of the air conditioner refrigeration system.

Description

technical field [0001] The present application relates to refrigeration systems, and in particular, to an air-conditioning refrigeration system and an oil return control method for the system. Background technique [0002] When the air conditioning refrigeration system is running, part of the refrigeration oil will enter the evaporator with the refrigerant. If the air conditioner uses a plate heat exchanger as the evaporator, when the flow rate of the refrigerant in the evaporator channel is low, the refrigeration oil will gradually accumulate on the upper layer of the evaporator liquid surface, thereby forming an oil-rich foam layer. If the system cannot return oil in time, over time, the compressor will lose oil. In addition, with the continuous pursuit of energy saving and emission reduction in the industry, the area of ​​the evaporator is getting larger and larger, and the increase in the area will further reduce the flow rate of the refrigerant in the evaporator, makin...

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): F25B49/02
Inventor 程振军徐广明
Owner 博世热力技术(上海)有限公司
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