Rotary compressor of hydrocarbon refrigeration agent

A rotary compressor, hydrocarbon refrigerant technology, applied in rotary piston/swing piston pump components, mechanical equipment, machines/engines, etc., can solve the problems of high flammability, limiting the amount of refrigerant enclosed, etc. Achieve the effect of improving performance, reducing quality, and wide application

Inactive Publication Date: 2012-03-14
GUANGDONG MEIZHI COMPRESSOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when hydrocarbon refrigerants are used in air-conditioning systems, there is a very important issue, that is, they are highly flammable, so the amount of refrigerant enclosed in hydrocarbon air-conditioning systems must be limited

Method used

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  • Rotary compressor of hydrocarbon refrigeration agent
  • Rotary compressor of hydrocarbon refrigeration agent
  • Rotary compressor of hydrocarbon refrigeration agent

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Since hydrocarbon refrigerants such as propane R290 or propylene R1270 have a zero ozone depletion coefficient and a very low global warming coefficient (GWP), they can basically be ignored and are long-term substitutes. However, according to the American National Standard / American Society of Heating, Refrigerating and Air-Conditioning Engineers standard ANSI / ASHRAE 34 "Refrigerant Numbering Method and Safety Classification", the safety classification of hydrocarbon refrigerants such as propane R290 and propylene R1270 is defined as A3 level Refrigerants are low toxicity, high flammability refrigerants.

[0021] Internationally, in order to better promote the application of flammable hydrocarbon refrigerants, relevant safety regulations have been issued to guide the safe application of hydrocarbon refrigerants, such as the IEC 60335-2-40 (2005) s...

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Abstract

The invention discloses a rotary compressor of a hydrocarbon refrigeration agent, which is packaged with lubricating oil inside. The mass percentage of solubilities of the hydrocarbon refrigeration agent and the lubricating oil is A when the absolute pressure is 1.5-2.55MPa and the temperature is 47-80 DEG C, the mass percent of the solubilities of the hydrocarbon refrigeration agent and the lubricating oil is A when the absolute pressure is 1.6MPa and the temperature is 55 DEG C, wherein the A is more than 2 percent and not more than 22 percent. The mass percent of the solubilities of the hydrocarbon refrigeration agent and the lubricating oil is A when the absolute pressure is 1.6MPa and the temperature is 50 DEG C, wherein the A is more than 2 percent and not more than 23 percent. The lubricating oil adopted by the rotary compressor has the characteristics of low intersolubility with the hydrocarbon refrigeration agent, low solubility, capability of reducing mass of the hydrocarbon refrigeration agent dissolved in the lubricating oil in a compressor housing and improving the safety of a hydrocarbon air conditioner system, and wide application range.

Description

technical field [0001] The invention relates to a rotary compressor, in particular to a hydrocarbon refrigerant rotary compressor. Background technique [0002] R22 refrigerant has been listed as a phase-out refrigerant by the "Montreal Protocol". Europe and Japan have already begun to switch to R410A refrigerant replacement, and the United States will also ban the use of R22 in new refrigeration products in 2010. China has also accelerated the pace of R22 phase-out, which will be frozen at the average level from 2009 to 2010 in 2013, and the requirement of 10% of the baseline level must be reduced in 2015. And some major domestic brands have also begun to launch environmentally friendly air conditioners with R410A as the refrigerant. However, the GWP value of R410A is larger than that of R22. The "Kyoto Protocol" has listed R410A as a greenhouse gas for controlled emissions. All R410A is by no means a long-term alternative. [0003] As an alternative refrigerant to HCFC ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00
Inventor 陈振华
Owner GUANGDONG MEIZHI COMPRESSOR
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