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Precautions and maintenance measures for the use of explosion-proof electric heaters

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Precautions and maintenance measures for the use of explosion-proof electric heaters

Date:2017-08-12 Author:http://www.z-1.net.cn/ Click:

Electric heating is the process of converting electrical energy into thermal energy. Since the discovery of the heat effect of the power supply through the wire, many inventors in the world have been engaged in the research and manufacture of various electric electric appliances. The development and popularization of electrothermal technology, like other industries, follows such a rule: from the advanced country to the rest of the world, from the city to the countryside, from collective use to family and then to individuals, and products from low-grade to high-grade. In nineteenth Century, electric appliances are mostly poor germination stage, the earliest is used for electric appliance life, 1893 provide iron prototype in the United States and the first to use, then in 1909 the use of the electric cooker, electric heater is placed on the stove, i.e. heating firewood to transfer from the electrical, from electricity energy into heat. But the rapid development of the real electric electric appliance industry is after the invention of nickel chromium alloy used as an electric heating element. In 1910, the United States first developed the electric iron made of nickel chromium alloy heating wire, which fundamentally improved the structure of the electric iron, and the iron was quickly popularized. By 1925, in Japan, the product of installing electric heating elements in the pot became the original form of the modern electric cooker. In this stage, there are also electric heating products such as electric furnace, melting furnace, heater and so on. From 1910 to 1925, the development stage of the electrothermal appliances has been greatly developed. In family and industrial fields, the emergence and popularization of various kinds of electric heating appliances have been developing rapidly, especially family. So the invention of nickel chromium alloy is the foundation of the development of electric electric appliance industry.

Since 20s, there has been no more development in the field of new applications, but at this stage, all kinds of electric heating appliances have been revised and improved continuously, and become the improvement stage of the electric heating apparatus. In household electric appliances, all kinds of appliances are designed to be more beautiful, durable and solid, and most of them have automatic temperature and time control.

Precautions for the use of electric heating products

The components are allowed to work under the following conditions:

The air relative humidity is not more than 95%, no explosive and corrosive gas. (except for explosion-proof heaters)

The working voltage should not be more than 1.1 times the rated value, and the outer shell should be effectively grounded.

The insulation resistance is more than 1M Omega dielectric strength: 2KV/1min.

The heating pipe should be fixed and fixed. The effective heating area must be immersed in the liquid or metal solid, and the air burning is strictly prohibited. Found the body surface scaling or carbon, should be cleaned and then, to avoid affecting heat and shorten the service life.

Heat fusible metal or solid salt, alkali, asphalt, paraffin, should reduce the use of voltage for medium after melting, can rise to the rated voltage.

When the air is heated, the components should be arranged in a uniform way, so that the components have good heat dissipation conditions, so that the flow of air can be fully heated.

High temperature and high pressure hydroelectric heater

Heating nitrate should consider security measures, prevention of explosion accident.

The wiring part should be placed outside the insulation layer to avoid contact with corrosive, explosive medium and water. The lead wire should be able to withstand the temperature and heating load of the wiring part for a long time, and avoid excessive force when fastening screw.

The components should be stored in the dry place. If the insulation resistance is below 1M ohma for a long time, it can be dried in oven at 200 degrees, or the voltage is heated up until the insulation resistance is restored.

Magnesium oxide electric heating pipe outlet, used in place to avoid contamination and water infiltration, prevent the occurrence of leakage accident.

Daily maintenance of explosion-proof electric heating products

The heater running after a period of time (according to the use of the user), unscrew the ignition plug to clean up the carbon deposition, such as ignition Sethe burned off, remove the ignition plug to replace the new.

If there is too much carbon to cause the thermal efficiency to be reduced, the carbon deposited on the inner wall of the water jacket and the combustion chamber should be cleaned.

If the intake pipe and tubing of the heater are found to be clogged with soil, please clean up and dredge in time. Please keep the heater cabin clean, surrounded by non flammable debris.

SCR desulphurization and denitrification electric heater

Ensure oil tank, oil pipe and filter oil solenoid valve clean, prevent dirt blocking the oil road.

In the heater circulation system, antifreeze should be used as a circulating heating medium.

The heater pump shall be regularly checked according to the user's usage. If it is found that the sealing part of the sealing part is leaking, or the pump is difficult to start and operate, it should be repaired in time.

The automatic control box, filter oil, electromagnetic rice and other electrical components on the heater main unit are maintained according to the general low voltage electrical apparatus maintenance method. All the performance parameters of the automatic control box are carefully adjusted by the manufacturer before leaving the factory, so the user is not allowed to alter it without authorization.

Ensure that the heat control is in good condition and check regularly, if the microswitch is found to fail or damaged, please change it in time.

The main motor heater use, under normal circumstances, the use of 5000 hours without maintenance, such as the use of too much time or other reasons does not work normally, should be maintenance, check brush wear or bearing lubrication, if necessary please add grease or replace the carbon brush.

During the warm season, please start 4 to 5 times regularly, and run about 5 minutes each time to ensure that the heater operates normally during the next use.




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