Attention points of tubular heater use
2024-09-19
1, the heating part of the single head electric heat pipe should be fully immersed in the heating medium to avoid heat dissipation and exceed the allowable heating temperature to damage the electric heat pipe. In addition, the leading part of the wire should be exposed outside the thermal insulation layer of the heater or the heater, so that this part should not be overheated and damaged.
2, the input power supply, the voltage should not exceed 10% of the rated voltage marked on the various electric heat pipe, if applicable to lower than the rated voltage, the heat generated by the single head electric heat pipe will also decrease.
3, the electric heat pipe terminal, in the wiring should be relatively tight 2 nuts, do not exert too much force so as not to lead the screw loose and damage the electric heat pipe.
4, the single-head electric heat pipe terminal should be kept clean and dry, on the contrary, it will reduce the insulation performance and be short-circuit breakdown, if the application of chemical corrosion, flammable, explosive and other liquid or gas environment, should be the electric heat pipe wiring part with insulation sealing device strictly to protect, in case of accidents.
5, when heating some viscose and other substances, such as sodium nitrate, stearic acid, paraffin, etc., the power supply voltage should be reduced when heating to reduce the heat of the electric heat pipe, and then rise to the rated voltage for heating when all melted into a liquid.
6, the selection of single-head electric heat pipe should pay special attention to the heating medium. There should be no erosion effect on the shell material of the electric heat pipe.
7, the use of single-head electric heat pipe for a long time, if the surface accumulation of thick pipe scale, oil scale, should be regularly removed, otherwise it will reduce the heat transfer performance of the electric heat pipe and cause the tube surface heat load exceeding the rated allowable damage.
8, the single head electric heating tube should be stored in a dry warehouse, if the surface is damp due to long-term placement, the application of megohm meter in use to measure the insulation resistance. If less than 1 megohm /500 volts, the electric tube should be placed in a drying oven at 200 degrees for drying.
9, special electric heat pipe should be carefully read the relevant instructions before installation and use, so as not to damage it.
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