How to maintain explosion-proof electric heaters if they are not used for a long time?

Firstly, the magnesium oxide powder filling of explosion-proof heater equipment is incomplete. In addition to the quality of this material, whether the filling is uniform also affects the heating uniformity of the equipment, and the heat transfer in tightly packed areas will be fast. The second issue is the improper selection of resistance wires for explosion-proof electric heating equipment. Before operation, explosion-proof electric heating equipment should use professional resistance wires to evenly heat the equipment and ensure work efficiency. The third reason is that the design of the gap between the resistance wires of explosion-proof electric heating equipment is not scientific. On the one hand, the quality of the resistance wire is also important. If the design is not good, the heating will be uneven.
As a professional explosion-proof electric heater, explosion-proof electric heaters are widely used in industries such as industrial production and diagnosis and treatment. It is necessary to maintain and maintain the explosion-proof electric heater on time. Generally speaking, explosion-proof electric heaters have been in use all along. If the explosion-proof electric heater is not used for a long time, in order to prevent problems, the maintenance process of the explosion-proof electric water heater after long-term use is as follows:
1. Open the inlet valve to drain the water. If the explosion-proof electric heater is not used for a long time and is used again, the inlet valve should be opened first to ensure that water is introduced in the next step and the working pressure does not exceed the pressure. Then the heater can be powered on.
2. Replace the heating wire. If the electric heating wire is maintained several times after reuse, the route will be overloaded, so flammable materials should not be placed around the electric heating device to maintain a certain distance; But after several maintenance attempts, cables that cannot be used should be replaced immediately.
3. Winter cold prevention solution. Explosion proof electric cookers that are not used in winter should be immediately drained of water from the barrel to prevent freezing and cracking, which may harm the next application;
4. If not in use for a long time, power should be cut off. The explosion-proof electric heater does not need to turn off the switch power for a long time. Water resources, filling plastic buckets, keeping the interior of explosion-proof electric heaters clean, making it easier to operate next time; The cable must be equipped with a power plug, which cannot be inserted into the power socket. If the cable is damaged due to embrittlement, it should be replaced immediately. Electric heating devices without a conductive system installed cannot be used.