BGY8 Explosion-proof Electric Heater
1. This model of electric heater is manufactured by imitating German products. The electric heater consists of a heating core and a protective tube. The heating core uses a tubular electric heating element as the heat source, and the protective tube is made of thin stainless steel tube. The wiring device is protected by a bolted cover seal, which is waterproof, moisture-proof, and oil-proof.
2. The protective tube and the oil tank body are connected by straight pipe threads with strong sealing. The protective tube isolates the core from the heated oil. When replacing the electric heater, there is no need to drain the oil in the tank; only the heating core needs to be pulled out, making maintenance convenient.
3. The surface power of this model of electric heater is designed according to the JBT2379-93 standard, and the surface power should be selected at ≤0.7W/cm2.
Main indicators and parameters:
˜ Rated voltage: 660V, 380V, 220V……
˜ Nominal power: 5, 10……500KW
˜ Applicable medium: all liquids and gases
˜ Explosion-proof grade: Electrical junction box ExdⅡCT4; Heating element ExeⅡ
˜ Inlet temperature: ＜650℃
˜ Outlet temperature: ≤650℃
˜ Temperature control method: Temperature controller + relay switch type (or solid state relay)
Temperature controller + PLC program control + relay switch type (or solid state relay)
Temperature controller + thyristor
Temperature controller + PLC program control + thyristor
Temperature controller + microcontroller + thyristor (or relay, solid state relay)
˜ Temperature control accuracy: ±1℃, ±2℃, ±3℃
˜ Temperature control program: fixed set value, multi-step ladder type, function type
˜ Temperature communication signal: RS485, RS232 interface
˜ Maximum internal temperature of junction box: ＜65℃, ＜85℃, ＜100℃
˜ Maximum design pressure: ＜20MPa
˜ Maximum operating pressure: ＜16MPa
˜ Immersion length into tank: 0.5m, 1m, 2m……5m
˜ Heating time: 0.5h, 1h, 2h……
˜ Heating element shell material: 321 stainless steel, 316L stainless steel, 304 stainless steel, 1Cr18Ni9Ti stainless steel
˜ Interface flange material: carbon steel, 16Mn, 321, 304, 316L
Product introduction:
It is widely used in petroleum, chemical and other industries for heating flowing or static liquids and gases in tanks and containers. The heating part of the immersion electric heater is completely immersed in the medium, and the electrical junction box is outside the tank or container. Its characteristics are:
1. 100% of the generated heat is transferred to the medium, with extremely high thermal efficiency.
2. The electrical junction box is made of flameproof structure and can work safely in Zone I and Zone II explosive atmospheres.
3. Protection level reaches IP56, can work long-term in the field and marine environment.
4. Typical temperature measurement points are set inside, and the electrical temperature control device can detect whether the heater is overheating, and can control it in time to avoid damage.
5. The safety factor of the immersion electric heater manufactured by our company is much higher than the national standard requirements, with long service life and good insulation performance.
Keywords: Explosion-proof electric heater explosion-proof grade/Explosion-proof electric heater explosion-proof grade
