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Water-cooled screw chiller shrinkage capacity adjustment system
Aug 16, 2018

The tolerance system of the compressor is controlled by oil pressure. If the temperature is low, the viscosity of the oil is high. If the compressor is started immediately, the operation of the tolerance system may not be smooth. Therefore, before the system is operated, it needs to be preheated for about 8 hours. . The tolerance system consists of a volume adjustment slider, three solenoid valves and a set of pressure regulating hydraulic pistons. The adjustable range is 25%, 50%, 75%, 100%. The oil pressure piston is used to push the volume adjustment slider. When the compressor is running, the oil pressure pushes the piston, and the position of the oil piston is controlled by the action of the electromagnetic valve. The solenoid valve is controlled by the temperature of the system. The oil system that controls the volumetric piston is fed from the oil reservoir of the casing in a differential pressure manner. After passing through the oil filter, it is restricted by a capillary tube and sent to the cylinder. If the oil filter is blocked or the capillary is blocked, the tolerance action will fail. Similarly, if the solenoid valve fails, the same situation will occur.

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