Method for reducing compressor oil circulation rate
A compressor oil and cycle rate technology, applied in the field of compressors, can solve the problems of reduced heat transfer effect of condensers or evaporators, small thermal conductivity of oil film, and performance degradation, so as to enhance safety and reliability and reduce oil circulation rate, the effect of reducing the concentration of oil
Inactive Publication Date: 2010-06-30
SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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Problems solved by technology
During the operation of the refrigeration system, the lubricating oil often enters the condenser or even the evaporator with the exhaust gas of the compressor. The flow direction of the lubricating oil is as follows: figure 1 As shown, a layer of oil film is condensed on the heat transfer wall surface, and the heat transfer effect of the condenser or evaporator is reduced due to the small thermal conductivity of the oil film.
At the same time, the internal parts of the compressor will also increase wear and tear due to lack of lubricating oil, and the performance will decline.
Method used
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Embodiment 1
[0015] Such as figure 2 As shown, an all-electric scroll compressor for a vehicle is coated with non-stick coating Teflon on the inner surface of the refrigeration compressor. When the mixture of superheated refrigerant vapor and lubricating oil mist discharged from the compressor discharge valve When it reaches the inner surface of the compressor, the oil mist condenses and falls, thereby achieving the purpose of being separated from the mixture. The coating must have non-stick properties, heat resistance, moisture resistance, chemical inertness, excellent insulation stability and low friction, and meet the characteristics of high temperature of 150 ° C and no chemical interaction with refrigerants.
[0016] The above-mentioned coating can also be selected from one or a combination of fluorine-containing vinyl polymers, acrylic modified fluorine-containing polymers, fluorine-containing epoxy resins, fluorine-containing polyurethanes and perfluoropolyethers.
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The invention relates to a method for reducing a compressor oil circulation rate. In the method, non-sticky paint is applied on the inner surface of a compressor, and oil mist can be condensed and fall off when the mixture of the superheated refrigerant steam exhausted by the exhaust valve of the compressor and the oil mist is spread to the inner surface of the compressor, thereby realizing the separation of the oil mist from the mixture. Compared with the prior art, the invention has the advantages of simple structure, convenient operation, good separation effect and the like.
Description
technical field [0001] The invention relates to a compressor, in particular to a method for reducing the oil circulation rate of the compressor. Background technique [0002] When the refrigeration compressor is working, lubricating oil is required to lubricate, cool and seal inside the machine. During the operation of the refrigeration system, the lubricating oil often enters the condenser or even the evaporator with the exhaust gas of the compressor. The flow direction of the lubricating oil is as follows: figure 1 As shown, a layer of oil film is condensed on the heat transfer wall surface, and the heat transfer effect of the condenser or evaporator is reduced due to the small thermal conductivity of the oil film. At the same time, the internal parts of the compressor will also increase wear and tear due to lack of lubricating oil, and the performance will decline. Contents of the invention [0003] The object of the present invention is to provide a method for reduci...
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IPC IPC(8): F04C29/02C09D127/18C09D127/12C09D163/00C09D175/04C09D171/00C09D5/00
Inventor 沈建芳黄波
Owner SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD