Water drain pipe heater for low temperature cold room
As we know, for a cold room evaporator, we need to defrost regularly and keep the evaporator exchange heat well. And, the water from the defrost needs to discharge to the outside by drain heater for cold room.
Then, if you consider more, I am sure you can think out some parts of the cold room drain heater is inside the cold room and maybe water will freeze to ice. It seems that we need to do something to prevent water from freeze to ice. Because the frozen ice will block the water pipe, then water can not discharge to the outside and the drain tray will full of ice. Don’t worry, what we suggest to preventing water make ice are:
1. For medium temperature cold storage (temperature is over 0 degrees), it is okay no need to do something to prevent water frozen.
2. For low temperatures, we should add a heater in the water pipe and do insulation. And, if the water pipe is plastic, we advise using a 40w/m heater. If the pipe is steel, the heater should be 50w/m.
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