Cooling system of variable frequency vortex parallel connection machine set and operating method thereof
A refrigeration system and variable frequency compressor technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of excessive lubricating oil and low internal pressure of the compressor, and achieve the effect of reducing costs
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[0020] Such as figure 1 The refrigeration system of a variable frequency scroll parallel unit shown includes: variable frequency compressor 1, fixed frequency compressor I2, fixed frequency compressor II3, oil separator 4, condenser 5, liquid receiver 6, evaporator 7 and gas-liquid separator 8; variable frequency compressor 1, fixed frequency compressor I2 and fixed frequency compressor II3 are connected together in parallel through pipelines; the exhaust pipes of variable frequency compressor 1, fixed frequency compressor I2 and fixed frequency compressor II3 are connected with The exhaust main pipe 9 is connected; the exhaust main pipe 9 is connected with the inlet of the oil separator 4; the oil outlet of the oil separator 4 is respectively connected with the variable frequency compressor 1, the fixed frequency compressor I2 and the fixed frequency compressor II3, and the oil separator 4 The oil supply solenoid valve Ⅰ10, oil supply solenoid valve Ⅱ11 and oil supply solenoi...
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