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What are the common failures of walk-in cooler refrigeration system
What are the common failures of walk-in cooler refrigeration system
1. walk-in cooler common failure analysis and treatment of refrigeration system equipment used for walk-in cooler, except for its own refrigeration unit , Auxiliary equipment and supporting parts are more than other types of refrigeration system devices, so the daily maintenance and maintenance will also bring corresponding troubles and cause more failures. How to make emergency repairs and reduce downtime still requires a set of regular inspection procedures and technical means. At the same time, the entire system is divided into areas and fault points are listed to narrow the scope of repair. The specific division is as follows.
1) The power supply of the electrical part is faulty when a sudden short circuit and motor damage: The control part is activated by the control element. In addition to the damage of the control element such as the temperature controller itself, the electrical elements in the control loop are also easy to cause mechanical damage And fatigue damage.
walk-in cooler screw refrigeration compressor normal operating state parameters
screw refrigeration compressor shutdown operation
(1) close the liquid supply valve related to the regulating station.
(2) Slowly close the suction valve.
(3) Stop and close the exhaust valve.
(4) It is normal for several reversals during shutdown. When there are multiple reversals, it means that the check valve is not closed tightly.
(5) After shutting down in winter, drain the water in the cold water condenser and oil cooler to prevent freezing and cracking.
(6) Cut off the power of the control device.
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