Razones y métodos de resolución de problemas de la enfriadora que no arranca

2022/08/12 ClasificaciónNoticias del sector 223

Razones y métodos de resolución de problemas de la enfriadora que no arranca

The reason why the industrial chiller cannot be started: The compressor is the core component of the industrial chiller. If it cannot be started, the entire equipment cannot operate normally. When the compressor is started, the data range of various instruments and meters during the normal operation of the industrial chiller refrigeration system should be understood in detail, so that various industrial chiller operation failures can be ruled out according to the relevant data.

1. First check the main circuit. Whether the power supply has electricity, whether the voltage is normal, whether the fuse has been blown, whether it has tripped, whether the switch contacts are in good condition, and whether the power supply is out of phase. Observe the voltmeter and ammeter when starting. When the chiller is not installed with an ammeter and a voltmeter, a multimeter or a test pen can be used to check the power supply. The compressor will not start when the power supply voltage is too low.

2. For the piston refrigeration compressor, whether the connecting rod big end bearing bush and the crank sleeve are locked. These may be caused by the high exhaust temperature during the previous operation, or it may be caused by the coking of the lubricating oil, which makes the cylinder and the piston stick, so that the compressor cannot be started.

3. Check the differential pressure relay and the high and low voltage relays. When the oil pressure of the compressor is abnormal, the compressor will stop running. At the same time, when the compressor discharge pressure and suction pressure are abnormal, the compressor cannot be started or will stop running soon after it has been started.

4. Check whether the cooling water volume and water temperature are normal. If the water volume is small and the water temperature is high, the condensing pressure will rise sharply, and the evaporation temperature will drop rapidly. Because the equipment has protection facilities, it will stop soon.

5. Check whether the relevant solenoid valves and regulating valves are out of order, and whether they are opened or closed as required.

6. Check whether there is working fluid leakage in the temperature sensing bag of the temperature relay, or the adjustment is wrong.

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