News Details

High Power Explosion-proof Electric Heater Product Introduction:

 It has been widely used in industries such as petrochemical and metallurgy in China. However, its service life is not as long as that of other new types of heaters. Its heating power per unit area is relatively high, making it prone to carbon deposition on the heater surface.

This heater is an explosion-proof type and has been widely used in industries such as petrochemical and metallurgy in China. However, its service life is not as long as that of other new types of heaters. Its heating power per unit area is relatively high, making it prone to carbon deposition on the heater surface. Especially for heaters above 5KW, the normal service life is only about 3 years. Therefore, this heater is not a recommended product of our company.

High Power Explosion-proof Electric Heater Specifications 

Precautions

1. The element is allowed to work under the following conditions:
A. The relative humidity of the air is not more than 95%, and there are no explosive or corrosive gases. (Except for explosion-proof heaters)
B. The working voltage should not exceed 1.1 times the rated value, and the shell should be effectively grounded.
C. Insulation resistance ≥1MΩ, dielectric strength: 2KV/1min.
2. The electric heating tube should be properly positioned and fixed. The effective heating area must be fully immersed in liquid or solid metal. Dry burning is strictly prohibited. If scale or carbon deposits are found on the tube surface, they should be cleaned promptly before reuse to avoid affecting heat dissipation and shortening service life.
3. When heating fusible metals or solid nitrates, alkalis, asphalt, paraffin, etc., the operating voltage should be reduced first, and then raised to the rated voltage after the medium melts.
4. When heating air, the elements should be arranged crosswise and evenly to ensure good heat dissipation conditions and fully heat the flowing air.

Product Applications:
This product is a new type of wellhead insulation explosion-proof electric heater developed after three years of repeated practice, integrating various wellhead insulation heating materials used in oil extraction processes.
This product is widely used in oilfield injection and production wellhead insulation boxes, outdoor instruments in winter, valves, and electrical insulation boxes. It is an ideal device for winter insulation and heating.
Dimensional Features:

1. It consists of a heating core and a protective tube. The heating core uses tubular electric heating elements as the heat source, and the protective tube is made of thin stainless steel. It has a large heat dissipation area and fast heat transfer. The terminal connection part is divided into a common type (using an iron drawn cup-shaped housing) and a special type (using a bolted flameproof device housing seal). The special type meets the requirements of explosion-proof mark dIICT4 and protection level IP65 series standards.

2. It is connected to the oil tank container body by flange. The protective tube isolates the heating core from the heated oil. When repairing the electric heater, it is not necessary to drain the oil from the tank. Only the heating core needs to be pulled out and replaced with a new one, making maintenance convenient.

3. During design, the contact area between the protective tube and the heated oil should be considered to prevent local carbonization of the oil due to excessive heating temperature. This model of heater is only suitable for use with heat transfer oil or oil with good heat transfer effect and for internal heating of media.