Friends who have used water immersion heater tube should know that when the liquid electric heating tube leaves the liquid dry burning, the surface of the heating tube will burn red and black, and finally the heating tube will be broken when it stops working. So now take you to understand why the liquid electric heating tube can not expose the liquid outside heating.
The power design of the liquid electric heating tube is different from that of the dry electric heating tube, the power design of the normal liquid electric heating tube is 2-3KW per meter, and the power design of the dry electric heating tube is 1-1.2KW per meter (the power per meter refers to the power that the electric heating tube can carry per meter heating area). That is to say, the power of the liquid electric heating tube is twice that of the dry electric heating tube, because the air has an obstructive effect on heat conduction, so when the heating area of the liquid electric heating tube is heated in the air, the surface temperature of the electric heating tube cannot be distributed in time, then the surface temperature of the liquid electric heating tube will continue to rise, so the internal temperature will also rise. When the internal temperature of the heating tube is high to a certain extent, it will burn out the resistance wire. The resistance wire burns out and the electric heating tube is scrapped.
The above content explains why the liquid electric heating tube can not be exposed to the liquid outside heating, so the dry burning phenomenon can not occur when the liquid electric heating tube is used, and the dry burning part can inform us in advance to reserve a cold zone in the heating tube, so that the service life of the liquid electric heating tube can be shortened because of dry burning.
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Contacts: Amiee Zhang
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Post time: Apr-06-2024