Working fluid composition for refrigerating machine

Working fluid composition for refrigerating machine

  • CN 104,145,009 B
  • Filed: 03/25/2013
  • Issued: 01/30/2018
  • Est. Priority Date: 03/27/2012
  • Status: Active Grant
First Claim
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1. a kind of working fluid composition for refrigerating machine, it contains:

  • Refrigerant, it contains the 1st at least one kind of refrigerant composition in difluoromethane and tetrafluoropropene and selected from dioxyChange the 2nd at least one kind of refrigerant composition in the hydrocarbon of carbon and carbon number 3~4, and global greenhouse effect coefficient is less than 500;

    Refrigerator oil, it contains oil based at least one kind of in polyol ester, and carbon/oxygen mol ratio of the base oil isMore than 2.5 and less than 5.8;

    AndThe working fluid composition for refrigerating machine is in the case of containing additive, and the additive selected from phosphatization only by closingThing, epoxide, phenol antioxidant, amine system antioxidant, abrasion performance agent, chloralkane, oiliness improver, defoamer, metalAt least one kind of composition in inerting agent, viscosity index improving agent, pour-point depressant,The phosphorus compound is selected from by phosphate, phosphate ester acid, thiophosphate, the amine salt of phosphate ester acid, chloro phosphorusIt is at least one kind of in the group of acid esters and phosphite ester composition,The epoxide is selected from phenyl glycidyl ether type ring oxygen compound, alkyl glycidyl ether type epoxy compoundThing, glycidyl ester type epoxy compound, allyloxy silane compound, alkoxysilane compound containing trialkylsilyl group in molecular structure, alicyclic epoxy closeIt is at least one kind of in thing, epoxidized fat acid monoester and epoxidized vegetable oil,The phenol antioxidant to be at least one kind of in di-t-butyl-paracresol and bisphenol-A,The abrasion performance agent is zinc dithiophosphate,The metal inerting agent is BTA.

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