After the prototype of the HC semi-closed single-stage two-stage compressor was used in small batch trial production, a series of notable problems were also found, which were mainly reflected in the following aspects: (1) Low-pressure intake directly into the air Cylinder, if the system is not clean, it will seriously wear the cylinder mirror, piston and other components, resulting in air leakage, oil running and other faults, so the suction filter should be installed in front of the suction valve.
(2) The low-pressure stage suction directly enters the cylinder. If the system returns to the air with liquid, it is easy to cause the cylinder and liquid hammer failure. Therefore, the gas-liquid separation or intermediate heat exchange device should be installed to avoid returning the gas.
(3) Low-pressure stage exhaust and high-pressure stage exhaust have no internal over-pressure bypass protection device, so the external pipeline should be arranged with similar safety protection devices, and equipped with basic protection devices such as high pressure, medium pressure, low pressure and oil pressure.
(4) The sensitivity of the intercooling expansion valve directly affects the intercooling efficiency and the cooling capacity. The opening degree of the system liquid supply expansion valve and the intercooling expansion valve must be synchronized and synchronized, otherwise the cooling efficiency will be greatly reduced.
(5) When the condensation condition is poor, the high-pressure exhaust gas temperature is high, and the oil separation effect is not good. The cylinder head forced cooling measures should be taken, such as adding a cooling fan.
HC type semi-closed single-stage two-stage compressor is a new type of low-temperature refrigeration compressor with strong adaptability and wide application range. In the process of continuous promotion and application, we should also adopt high-tech means to deeply analyze and research its operation process, further improve the efficiency of the valve, simplify the production process, and seek the best quality control method to make it advanced and price. Moderately mature products.
Cooling (Water) System Quick Connector
Cooling (Water) Quick Connector, Water Piping Connector, Water Tube Fasterning
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