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How to prevent ice blockage of refrigeration equipment

Update:2020-11-16
Summary:First, the loose connection of the threaded connection is redone and tightened. To ensure that there is no leakage in the high-pressure test of the pi...

First, the loose connection of the threaded connection is redone and tightened. To ensure that there is no leakage in the high-pressure test of the pipeline. The pipeline of the refrigeration cycle system is divided into high-pressure section and low-pressure section, rinsed with four-recorded carbon, and purged and sealed with nitrogen for use.

Then the compressor unit must be strictly handled in accordance with the steps, replace with a new filter, and then unsealed the piping of the refrigeration cycle system to be blown and sealed and the compressor unit is quickly assembled. Then follow the first step to charge the refrigerant quantitatively. Finally, wait five minutes (wait for the static equilibrium of the pressure in the high-pressure zone and low-pressure zone in the refrigeration cycle system) to power on the test machine.

Pay attention to moisture

1. Seal or seal moisture-proof treatment for non-maintenance department.
2. The maintenance department should disassemble and disassemble quickly.
3. Do not choose to maintain in rainy weather.

Spare trick

But there is always something in case. For maintenance, the refrigeration equipment with slight ice blockage can use the first man method:

1. Recycle the refrigerant and replace with a new filter;
2. A filter for a cubic freezer is connected in series at the high-pressure exhaust end;
3. Refill the refrigerant quantitatively;
4. Bake the 1000W iodine tungsten lamp in the freezer (note: the temperature is lower than 70℃).
5. Test for one hour after power on. Recycle the refrigerant, remove and connect a filter for a cubic freezer in series with the high-pressure exhaust end, and replace with a new filter;
6. Refill the refrigerant quantitatively.

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