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Oil cooling system and oil cooling system control method

An oil cooling system, on-off control technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of unfavorable reliability and fluctuation of the system, and achieve the effect of ensuring continuous and stable adjustment and avoiding shutdown

Active Publication Date: 2017-12-15
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

However, in this method, bypassing the high-pressure superheated gas to the evaporator inlet will cause sharp fluctuations in the evaporator inlet pressure, which is detrimental to the reliability of the system

Method used

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  • Oil cooling system and oil cooling system control method
  • Oil cooling system and oil cooling system control method

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] Such as figure 1 and figure 2 As shown, according to the embodiment of the present invention, the oil cooling system includes an oil tank 1 , a compressor 2 , a temperature compensation heat exchanger 3 and an on-off control structure 4 . Wherein, the compressor 2 includes an air inlet and an air outlet. The temperature compensation heat exchanger 3 is set in the oil tank 1, the inlet of the temperature compensation heat exchanger 3 is connected to the exhaust port of the compressor 2 through the temperature compensation pipe, and the outlet of the temperature compensation heat exchanger 3 is connected to the compressor through the temperature return pipe 2 air inlet connection. The on-off control structure 4 is arranged on the temperature compensation tube, and controls the on-off of the temperature compensation tube.

[0027] In the oil cooli...

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Abstract

The invention provides an oil cooling system and an oil cooling system control method. The oil cooling system comprises an oil tank, a compressor, a temperature compensation heat exchanger and an on-off control structure. The compressor comprises an air inlet and an air outlet. The temperature compensation heat exchanger is arranged in the oil tank, an inlet of the temperature compensation heat exchanger is connected with the air outlet of the compressor through a temperature compensation pipe, and an outlet of the temperature compensation heat exchanger is connected with the air inlet of the compressor through a temperature liquid return pipe. The on-off control structure is arranged on the temperature compensation pipe and controls the on-off states of the temperature compensation pipe. According to the oil cooling system, higher temperature control precision can be achieved, frequent starting of the compressor can be avoided, and system stability and reliability are guaranteed.

Description

technical field [0001] The invention relates to the field of auxiliary equipment for industrial processing machine tools, in particular to an oil cooling system and a control method for the oil cooling system. Background technique [0002] Traditional processing machine tools use an oil cooler refrigeration cycle to cool the lubricating oil of the machine tool. Ordinary oil coolers use a fixed-frequency compressor system to ensure that the outlet oil temperature is stable within a certain range by controlling the start / stop of the compressor. However, the temperature control accuracy of this form of oil cooler is poor, and generally can only achieve a temperature control accuracy of ±1°C. With the processing accuracy requirements of processing components such as semiconductors, the control accuracy of the spindle oil temperature of precision processing machine tools has been further improved to ±0.1°C or lower. [0003] One of the oil coolers uses a variable frequency compr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N39/02F25B1/00F25B49/02
CPCF16N39/02F25B1/00F25B49/022F25B2400/05Y02B30/70
Inventor 吕如兵
Owner GREE ELECTRIC APPLIANCES INC
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