申请人:CASTROL LIMITED
公开号:EP0468729A1
公开(公告)日:1992-01-29
The use of mixtures of 1,1,1,2-tetrafluoroethane and an ester having a molecular weight of greater than 250 as retrofill working fluid/lubricant combinations for mechanical vapor recompression heat transfer devices. Despite the presence of residual lubricant, e.g. hydrocarbon lubricants, from working fluid/lubricant combinations in which working fluids such as R12, R22, R502 or R511 are used, anticipated problems resulting from immiscibility such as excessive wear have not been observed.
将 1,1,1,2-四氟乙烷和分子量大于 250 的酯的混合物用作机械蒸汽再压缩传热装置的加注工作流体/润滑剂组合。尽管在使用 R12、R22、R502 或 R511 等工作流体的工作流体/润滑剂组合中存在残余润滑剂(如碳氢化合物润滑剂),但并未观察到因不溶解性(如过度磨损)而导致的预期问题。