What is an explosion-proof immersion heater?
An explosion-proof immersion heater is a tubular heater that consumes electrical energy and converts it into heat to heat an object to be heated. The explosion-proof immersion heater is made up of an explosion-proof heating pipe and an explosion-proof junction box.
During operation, the low-temperature fluid medium enters its input port under the action of pressure through the pipeline, along the specific heat exchange flow path inside the electric heating vessel, and uses the path designed by the fluid thermodynamics principle to take away the high-temperature heat energy generated in the work of the electric heating element, so that The temperature of the heated medium rises, and the electric heater outlet obtains the high temperature medium required by the process.
Characteristic of explosion-proof immersion heater
1. Explosion-proof electric heating pipe is made of SUS304, 316L, etc. Explosion-proof electric heating pipes with high power requirements can choose better materials such as incoloy800 and incoloy840.
2. The explosion-proof electric heating tube uniformly distributes the high-temperature resistance wire in the high-temperature resistant stainless steel seamless tube, and densely fills the crystalline magnesium oxide powder with good thermal conductivity and insulation performance in the gap portion to make the explosion-proof electric heating tube have high thermal efficiency;
3. Uniform heat dissipation and long service life.
Inspection standard for explosion-proof immersion heaters:
1 Rating V Maximum rated voltage is 380.400
2 Input power deviation: +5% or -10%
3 Electrical strength at working temperature W% Apply 50Hz1000V sinusoidal AC voltage for 1min, no breakdown, no internal network
4 Leakage current at working temperature MA ≤0.75
5 Tidal electrical strength Apply 50Hz1250V sinusoidal AC voltage for 1min, no breakdown, no internal network
6 Mechanical strength After the experiment, there should be no new standard damage, no exposed objects
7 Creepage distance and clearance mm 1) Between different polarities:
Creepage distance ≥3.0
Clearance ≥2.5
2) Between live parts and metal:
Creepage distance ≥1.0
Clearance ≥1.0
8 cold insulation ≥200
Explosion-proof immersion heater application
1. Heating of chemical materials in the chemical industry, some powder drying under certain pressure, chemical process and spray drying.
2. Hydrocarbon heating, including petroleum crude oil, heavy oil, fuel oil, heat transfer oil, lubricating oil, paraffin, etc.
3. Process water, superheated steam, molten salt, nitrogen (air) gas, water gas, etc., which are heated by heating.
4. Due to the advanced explosion-proof structure, the equipment can be widely used in chemical, military, petroleum, natural gas, offshore platforms, ships, mining areas, etc.
