How is the screw chiller cooled?

More commonly used in various industriesScrew type ChillerMainly air-cooled screw chillers and water-cooled screw chillers two kinds, and screw chillers produce "ice jam"

, refers to the throttle device part of the thermal expansion valve, the water freezes and forms the blockage phenomenon. Why does the cold system of screw cold water mechanism produce ice jam?

For Freon refrigerant chiller refrigeration system, because Freon refrigerant and water is insoluble, when the freon containing water through

When the thermal expansion valve, the Free State of water from the freon separation, in the low-temperature state of ice and plug the pipe and valve. On the other hand, freon in the water

In the case of mixing, the chemical stability is poor, it is easy to produce acidic material, and the pipe and inner surface of the screw type chiller are corroded. Therefore, for Freon refrigeration system

, the water content is expressed as a mass fraction and shall not exceed 0.0025%.

But the water of the screw chiller Freon refrigeration system mainly comes from the following kinds of situations:

1. After the system is installed, the internal air is not drained and there is water;

2, overhaul and fluoride into the air;

3, low-pressure part of the leak, when the pressure is lower than the local atmospheric pressure into the air;

4, Freon itself is not pure, containing moisture and other factors caused.

Therefore, before the refrigeration system of the screw chiller is filled with refrigerant, it is necessary to do the drying work and install the drying filter in the Freon refrigeration system. Right

In the system installed in the drying filter, due to the long running time, the absorption of water efficiency is poor to be replaced in a timely manner. Shenzhen poly de cold water machine factory production of cold

Water machine, before the factory will be filled with refrigerant and lubricants. If there is a failure in the operation of the Unit, need to fill the refrigerant, it is recommended to contact the cold water Machine manufacturers

Process to ensure the safe and reliable operation of the unit.