Refrigeration oil
Release time:
2024-06-03
the role of refrigeration oil:
① Lubrication; ② Sealing; ③ Reduce temperature; ④ Provide power for unloading mechanism
The refrigerant and the lubricating oil are mutually soluble to ensure the oil return of the system. On the one hand, it can fully lubricate the friction surface of the compressor, and on the other hand, it can avoid deposits at the bottom of the heat exchanger to affect heat transfer.
Common refrigerant adaptation of synthetic refrigeration oil:
| POE (PolyolesterPolyol Ester Lubricating Oil) | POE Oil is currently in the world.HFCRefrigeration system compressor useXXA wide range of refrigeration oil, the current major compressor manufacturers at home and abroad of the new refrigerant series,For example, domestic household series: Meizhi'sPG(R407C) ,PA (R410A) Series;Panasonic Wanbao4 (R407C) ,5 (R410A) Series;Shanghai HitachiCG(R407C) Series, etc.; automotive air conditioning compressor factory has; Shanghai Songzhi, Guangzhou Lean, Nanjing Aotejia and so on. Foreign brands include: York (YORK/FRICK/Sabroe), Trane (Trane), Kaili (Carrier), Dunham Bush (Dunham-Bush）、（McQuay) etc.POE Oil.POERefrigeration oilXXEarly use inHFC-134arefrigerator systems, which later continued to be developed to makeHFC-410AandHFC-407Con the air conditioner,XXNear manufacturers are also vigorously promotingPOEInR744(carbon dioxide) refrigerant applications. |
| PAG (Polyalkyl glycolalkyl glycol compounds) | PAGOil andHFCRefrigerant has good compatibility, and the viscosity index is very high. Mainly used in the early development of completedHFC-134a汽车空调机系统。同时PAGOil and ammonia refrigerants also have good compatibility.IdemitsuThe company'sPAGOil used in automotive air conditioning, occupy the main market.PAGThe main disadvantages of oil are high moisture absorption and poor electrical insulation, and the flash point and stability are not as good POE，目前有厂商开发PAGAs a refrigeration oil, the moisture absorption and low temperature characteristics have been improved. |
| PVE (Polyvinyl etherEther compounds of polyethylene) | PVEOil can liftPOEOil inHFCStability of water solubility and compatibility of dirt in refrigerant systems. CurrentlyPVEThe development of oil was quite successful,Idemitsu(Japanese light) company occupies most ofPVEIn the market, major Japanese air conditioner manufacturers and major air conditioner manufacturers in South Korea, the United States, and Europe have also begun to adoptPVEThe oil is used as refrigeration oil.PVEThe main disadvantage of oil is the lack of oxidation stability and thermal stability, and the hygroscopicity is also very high, but because there is no patent consideration and the theoretical cost is low, there are still some applications. |
| AB (Alkyl benzeneAlkyl benzene compounds) | ABRefrigerant oil andHFCThe refrigerant is not miscible，Therefore, its application in refrigeration and air-conditioning systems is different from other refrigeration oils, and special considerations must be taken mainly in the oil return part. But ABOil has strong corrosion resistance, dirt and water also has a high compatibility, and other types of frozen oil, the price is relatively cheap. For conversionHFCThe compressor or other components used in the refrigerant system are also relatively inexpensive to modify, so they are suitable for use on small air conditioning systems.Hard ABOil(HAB)It has the advantages of low viscosity and cost, and is also used inHFC-134ain the refrigerator. Main productionABThe manufacturer of the oil isNippon-Mitsubishi Oil.ABThe low temperature characteristics of the frozen oil are not good and there are environmental concerns that limit his scope of application. |
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