Air-supplementing and enthalpy-increasing control method, facility and device for double-stage compressor

A two-stage compressor, a technology for supplementing air and increasing enthalpy, which is used in compressors, mechanical equipment, compressors with reversible cycles, etc., and can solve the problems of poor operation stability of the two-stage compressor.

Active Publication Date: 2016-03-02
GREE ELECTRIC APPLIANCES INC +1
View PDF7 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a method, device and device for controlling air supplementation and enthalpy increase of

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-supplementing and enthalpy-increasing control method, facility and device for double-stage compressor
  • Air-supplementing and enthalpy-increasing control method, facility and device for double-stage compressor
  • Air-supplementing and enthalpy-increasing control method, facility and device for double-stage compressor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030]In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate c...

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-supplementing and enthalpy-increasing control method, facility and device for a double-stage compressor. The air-supplementing and enthalpy-increasing control method comprises the steps that when an air-supplementing electronic expansion valve needs to be opened, the opening of the air-supplementing electronic expansion valve is gradually increased under the control of a control in time sequence; after the air-supplementing electronic expansion valve is opened, the detected air-supplementing superheat degree of the double-stage compressor is obtained; the opening of the air-supplementing electronic expansion valve is adjusted based on the air-supplementing superheat degree of the double-stage compressor, wherein the air-supplementing electronic expansion valve is arranged between a medium-pressure liquid storage tank and the double-stage compressor; and when the opening of the air-supplementing electronic expansion valve is not zero, a gaseous refrigerant in the medium-pressure liquid storage tank supplements air and increases enthalpy for the double-stage compressor. By adopting the air-supplementing and enthalpy-increasing control method, facility and device for the double-stage compressor, the problem of a double-stage compressor in the prior art that the operation stability is poor is solved.

Description

technical field [0001] The invention relates to the field of air-conditioning control, in particular to a method, equipment and device for controlling air supplementation and enthalpy increase of a two-stage compressor. Background technique [0002] The lower the ambient temperature, the greater the demand for the heating capacity of the air conditioner. At present, the single-stage compression heat pump can only be started and operated normally at minus 20 degrees, and the heating capacity of the air conditioner is seriously attenuated in the low temperature environment, and the heating effect cannot be achieved. To be guaranteed, the reliability of the air conditioning unit has also been severely tested. [0003] Compared with single-stage compression heat pumps, the two-stage compression system with air injection enthalpy increases the heating capacity at low temperatures and has higher energy efficiency; and the two-stage compression system can reduce the pressure ratio ...

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): F25B49/02
CPCF25B49/02F25B2400/13F25B2400/23F25B2600/2509F25B13/00F25B2400/074F25B2500/19F25B2600/01F25B2600/2513F25B2700/1933F25B2700/21151F25B2700/21152F25B41/34Y02B30/70F25B41/385F25B2500/28
Inventor 赵桓沈军谭锋梁尤轩李鹏飞
Owner GREE ELECTRIC APPLIANCES INC
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