Unlock instant, AI-driven research and patent intelligence for your innovation.

A Lubricating Oil Circulation System for Multi-element Mixed Working Fluid Oil Lubricated Compressor Units

A multi-component mixed working fluid and compressor unit technology, applied in compressors, refrigerators, refrigeration components, etc., can solve the problem of affecting the normal operation of oil pumps, compressor lubrication effects, refrigeration system operating components and design components. Viscosity and other issues to avoid adverse effects, reduce dilution, and ensure consistency

Active Publication Date: 2018-05-22
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When too much mixed working fluid dissolves in the lubricating oil, it will not only cause the deviation between the operating components of the refrigeration system and the design components, but also reduce the viscosity of the lubricating oil, affecting the normal operation of the oil pump and the lubrication effect of the compressor
Therefore, in the prior art, the only way to reduce the proportion of high-boiling components in the mixed working fluid is to increase the pre-cooling system, thereby reducing the impact of lubricating oil on the system

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
  • A Lubricating Oil Circulation System for Multi-element Mixed Working Fluid Oil Lubricated Compressor Units
  • A Lubricating Oil Circulation System for Multi-element Mixed Working Fluid Oil Lubricated Compressor Units

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] figure 1 It is an embodiment of the lubricating oil circulation system of the multi-component mixed working medium oil lubricated compressor unit of the present invention. Such as figure 1 As shown, the lubricating oil circulation system of the multi-component mixed working medium oil lubricated compressor unit in this embodiment includes a compressor 1, an oil separator 2, a working medium separator 3, an oil pump 4, an oil cooler 5, and a heater 6 , return air regulating valve 7 and oil return valve 8;

[0020] The exhaust port of compressor 1 is connected with the inlet of oil separator 2, the liquid phase outlet at the bottom of oil separator 2 is connected with the top inlet of working medium separator 3 through oil pump 4, and the liquid phase outlet at the bottom of working medium separator 3 is connected with oil return valve 8 The inlet of the oil cooler 5 is connected, and the outlet of the oil cooler 5 is connected with the lubricating oil inlet of the comp...

Embodiment 2

[0026] figure 2 It is another embodiment of the present invention; the difference between this embodiment and embodiment 1 is that the working fluid separator 3 adopts a heat recovery form instead of the conventional distillation method in embodiment 1; that is, the working fluid separation A three-stream heat exchanger is provided on the upper part of the device 3; in the three-stream heat exchanger, the liquid phase outlet at the bottom of the oil separator 2 is exchanged with the first stream in the three-stream heat exchanger through the oil pump 4 The inlet of the heat exchanger is connected; the liquid outlet at the bottom of the working medium separator 3 is connected to the inlet of the second stream heat exchanger in the three-stream heat exchanger through a pipeline, and the outlet of the second stream heat exchanger is passed through the The oil return valve 8 is connected with the inlet of the oil cooler 5 ; the outlet of the third stream heat exchanger of the thr...

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

A lubricating oil circulation system for a multi-component mixed working fluid oil lubricated compressor unit, comprising a compressor, an oil separator, a working fluid separator, an oil pump, an oil cooler, a heater, a return air regulating valve and an oil return valve; a compressor The exhaust port is connected to the inlet of the oil separator, the liquid phase outlet of the oil separator is connected to the inlet of the working fluid separator through an oil pump, the liquid phase outlet of the working fluid separator is connected to the inlet of the oil cooler through an oil return valve, and the outlet of the oil cooler is connected to the compressor inlet. The lubricating oil inlet is connected to the engine oil; the gas phase outlet of the working fluid separator is connected to the gas phase outlet of the oil separator through a return air regulating valve; the heater is installed in the working fluid separator; the invention reduces the multi-component mixed working fluid in the lubricating oil by heating the lubricating oil. Solubility in the refrigerant, and adding the distilled working fluid after heating to the mainstream working fluid can ensure the consistency between the ratio of the multi-component mixed working fluid refrigeration cycle and the design value; the separation of lubricating oil from the working fluid can also reduce its impact on lubrication. Dilution of the oil to avoid the adverse effect of the viscosity reduction of the lubricating oil on the system.

Description

technical field [0001] The invention relates to the field of mixed working medium throttling refrigeration, in particular to a lubricating oil circulation system of a multiple mixed working medium oil lubricated compressor unit. Background technique [0002] Utilizing the throttling refrigeration effect of actual gas to realize refrigeration is one of the earliest active refrigeration methods adopted by human beings, and it has been more than 200 years. Compared with other fluid refrigeration methods, the throttling expansion element of the fluid medium is simple and reliable, and the system composition is flexible and diverse, so the throttling refrigeration technology is widely used. The cryogenic mixed working fluid throttling refrigeration technology is the leading refrigeration technology in the field of natural gas liquefaction in the world, and it is also used in many aspects of the cryogenic field, including cryogenic refrigerators, high and low temperature test cham...

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): F25B31/00F25B43/02F25B49/02
Inventor 吴剑峰公茂琼程逵炜孙兆虎
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI