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Schlee (China) Refrigerating Equipment Manufacturing Co.,Ltd

Add:Jupu Road, Pukou Development Zone, Nanjing City, Jiangsu Province, China

Contact us:Annie





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Air Cooled Screw Chiller The Demand
- Aug 16, 2017 -

The fan is usually installed in the air-cooled screw chiller on the top, Air Cooled Screw Chiller there are some users choose to install on the side. And for the use of fans to heat the screw chiller, we call the air-cooled screw chiller, its installation environment must be kept empty and easy to flow air, so as not to affect the air-cooled screw chiller cooling effect.

Air-cooled screw-type chiller blower air volume is too small:

1, check the direction of rotation of the impeller is anti, Air Cooled Screw Chiller this can be replaced by any two motor wiring position to solve;

2, the valve opening is not enough, and the belt is too loose and the speed is not enough: may have been adjusted by the valve open to the appropriate opening, the belt tension or replacement, Air Cooled Screw Chiller and check the voltage and other measures to detect the bearing;

3, into the wind or outlet, pipe block: check the inlet / outlet, and remove the plug;

4, may be between the impeller and the shaft between the loose, can be removed by direct tightening method; if the impeller and the inlet gap is too large, it should be adjusted to the appropriate gap.

Air-cooled screw chiller fan, the equivalent of water-cooled chiller cooling tower cooling system, if the cooling effect is not good, then the air-cooled screw chiller cooling capacity is absolutely insufficient, a direct impact on the business demand for chilled water. Therefore, the air-cooled screw chiller for regular inspection, maintenance, maintenance is necessary, not only can reduce the air-cooled screw chiller failure rate, more conducive to extend the service life of air-cooled screw chiller.

Air-cooled screw chiller because of its key components - the compressor used screw-type air-cooled screw chiller, the unit from the evaporator out of the state of the gas refrigerant; compressed by the compressor after compression, into a high temperature and high pressure state. Compressed gas refrigerant, in the condenser, isostatic cooling condensation, after condensation into liquid refrigerant, Air Cooled Screw Chiller and then through the throttle valve to low pressure, into a gas-liquid mixture. Which low-temperature low-pressure liquid refrigerant, in the evaporator to absorb the heat of cold matter, re-become a gaseous refrigerant. The gaseous refrigerant is reintroduced into the compressor via piping to start a new cycle. This is the four cycles of the refrigeration cycle

1, the first boot, be sure to power more than 8 hours to prevent the start when the frozen oil blistering phenomenon. If the ambient temperature is low, the oil heating time to be relatively extended. Because the start in the low temperature state, because the oil viscosity, there will be easy to start and the compressor is not easy to load the situation, so at a lower ambient temperature, you must extend the heating time of the frozen oil heater. Air Cooled Screw Chiller General system in the shutdown, the refrigerator oil heater must continue to heat, Air Cooled Screw Chiller do not cut off the power, unless the unit is not used for a long time before considering the power cut off.

2, different brands of frozen oil must not be mixed use, Air Cooled Screw Chiller add frozen oil must be confirmed when the frozen oil brand specifications. If you need to replace the refrigerating machine oil, the compressor must be inside and the system of all the remaining frozen oil can be cleaned before adding new oil and replace the dry filter. It should also be noted that some synthetic oil and mineral oil compatible and produce qualitative change, Air Cooled Screw Chiller so the new oil to join, after re-operation to be replaced once a new oil to completely remove the residual oil.

3, start the compressor, when an accident occurs,Air Cooled Screw Chiller through the panel "emergency stop" button to stop.

4, without the company's sales staff permission, shall not adjust the electronic expansion valve controller parameters, offenders will cause the unit can not run properly.

5, if the safety valve on the reservoir to open, pay attention to ensure that the surrounding environment has a good ventilation, freon fire will generate harmful phosgene, this time around the unit is strictly prohibited fire.