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Composition for heat cycle system, and heat cycle system

A circulatory system and composition technology, applied in the field of thermal circulatory system composition and thermal circulatory system, can solve the problems of poor stability, short life, reduced lubricity, etc., and achieve improved lubricating characteristics, less environmental impact, and safety. high effect

Inactive Publication Date: 2018-01-02
ASAHI GLASS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] In addition, HFO-1123 used as this kind of working medium is a compound containing unsaturated bonds in the molecule. Since it is a compound with a very short life in the atmosphere, under repeated compression and heating conditions in thermal cycles, it is different from conventional HFC and Compared with saturated hydrofluorocarbons and hydrochlorofluorocarbons such as HCFC, the stability is poorer, and there are cases where the lubricity decreases in the thermal cycle system

Method used

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  • Composition for heat cycle system, and heat cycle system
  • Composition for heat cycle system, and heat cycle system
  • Composition for heat cycle system, and heat cycle system

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Embodiment

[0250] Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.

[0251]Prior to this, the combustion characteristics of a working medium containing 4 components as essential components were first studied. The results are shown in Table 2.

[0252] [Table 2]

[0253]

[0254] [Flammability evaluation]

[0255] Mix HFO-112, HFC-134a, HFO-1234yf and HFC-125, make the ratio of each medium as shown in Table 2, prepare the working medium for thermal cycle of 4-component system, mix each working medium with air, make each The ratio of the working medium to air was 10 to 90% by mass, and the flammability was evaluated at every 1% by mass ratio when mixed with air to achieve an equilibrium state.

[0256] Flammability evaluation was carried out in the following manner using the equipment specified in ASTM E-681. After evacuating the flask with an inner volume of 12 liters set in a thermostat controlled at a tempera...

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Abstract

Provided is a composition for heat cycle system containing a compound that contains an unsaturated bond, said composition being incombustible, and even in the event of a leakage has minimal impact onthe ozone layer and on global warming, has excellent cycle performance, and excellent safety, in addition to enabling more stable lubrication. Also provided is a heat cycle system using said composition. This composition for heat cycle system contains: a heat cycle operating medium containing trifluoroethylene, 1,1,1,2-tetrafluoroethane, pentafluoroethane and 2,3,3,3-tetrafluoropropene; and refrigeration oil. The composition for heat cycle system contains, in predetermined proportions, the four components that make up the operating medium. The heat cycle system provided uses this composition for heat cycle system.

Description

technical field [0001] The present invention relates to a composition for a thermal cycle system and a thermal cycle system using the composition. Background technique [0002] In this specification, the compound abbreviation of a halogenated hydrocarbon is described in the parentheses after a compound name, and the abbreviation is used instead of a compound name in this specification as needed. [0003] In the past, as refrigerants for refrigerators, refrigerants for air conditioners, working media for power generation systems (waste heat recovery power generation, etc.), working media for latent heat transport devices (heat pipes, etc.), and secondary cooling media, etc. Chlorofluorocarbons (CFCs) such as chlorotrifluoromethane and dichlorodifluoromethane, and hydrochlorofluorocarbons (HCFCs) such as chlorodifluoromethane are used. However, CFCs and HCHCs have been pointed out to have an impact on the stratospheric ozone layer, and are currently subject to regulation. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04C10M105/06C10M105/36C10M105/38C10M105/42C10M105/48C10M107/24C10M107/34F25B1/00C10N20/02C10N30/00C10N40/30
CPCC09K5/04C10M105/06C10M105/36C10M105/38C10M105/42C10M105/48C10M107/24C10M107/34F25B1/00Y02P20/10
Inventor 田坂真维福岛正人光冈宏明
Owner ASAHI GLASS CO LTD
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