News Details

Explosion-proof Electric Heater
Overview of Circulating Electric Heater:
    Circulating electric heater is an internationally popular high-quality long-life electric heating equipment. It is used for heating, heat preservation, and heating of flowing liquid and gaseous media. When the heating medium passes through the heating chamber of the electric heater under pressure, the fluid thermodynamics principle is used to uniformly带走 the huge heat generated by the electric heating elements during operation, so that the temperature of the heated medium meets the user's process requirements.
Working Principle
    Circulating electric heater is a device that converts electrical energy into heat energy to heat the material to be heated. During operation, the low-temperature fluid medium enters the input port through the pipeline under pressure, flows along the specific heat exchange channel inside the electric heating container, and uses the path designed by fluid thermodynamics principle to带走 the high-temperature heat energy generated by the electric heating elements during operation, so that the temperature of the heated medium rises, and the high-temperature medium meeting the process requirements is obtained at the outlet of the electric heater. The internal control system of the electric heater automatically adjusts the output power of the electric heater according to the temperature sensor signal at the outlet, so that the medium temperature at the outlet is uniform; when the heating element is overheated, the independent overheat protection device of the heating element immediately cuts off the heating power supply to avoid coking, deterioration, carbonization caused by overheating of the heating material, and in severe cases, burning of the heating element, effectively extending the service life of the electric heater.
II. Application Range of Circulating Electric Heater:
    Typical application occasions of circulating electric heater mainly include:
1. Heating of chemical materials in chemical industry, drying of some powders under certain pressure, chemical process and spray drying.
2. Heating of hydrocarbons, including crude oil, heavy oil, fuel oil, heat transfer oil, lubricating oil, paraffin, etc.
3. Heating of process water, superheated steam, molten salt, nitrogen (air) gas, water gas, etc., which need to be heated.
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 and other places requiring explosion-proof.
III. Factory Low Price Supply of Circulating Electric Heater / Zhenjiang Circulating Electric Heater Model Specifications:
    Model meaning: SW-◇-◇   ◇: Power (KW)  ◇: Medium  A: Gas  W: Water  T: Oil
Mechanical Specification Parameter Table (this table shows horizontal type, vertical type please inquire separately)

IV. Operating Conditions of Circulating Electric Heater:
Working conditions and installation site of electric heating system
* Ambient temperature: -15～45℃  
* Relative humidity: 46%～91%
* Altitude: Above sea level
* Control system: installed indoors, non-corrosive, non-explosion-proof area;
          Field operation box and equipment are combined into an integral skid installed in Zone 2 explosion-proof 
* Electric heater: installed indoors or outdoors, non-corrosive, Zone 2 explosion-proof area
V. Functional Features of Circulating Electric Heater:
1. Small size, high power: The heater mainly uses clustered tubular electric heating elements.
2. Fast thermal response, high temperature control accuracy, high comprehensive thermal efficiency.
3. High heating temperature: The maximum working temperature of the heater can reach 850℃.
4. Uniform medium outlet temperature, high temperature control accuracy.
5. Wide application range, strong adaptability: The heater can be used in explosion-proof or ordinary occasions, with explosion-proof grade up to dⅡB and C, and pressure resistance up to 20MPa.        
6. Long life, high reliability: The heater is made of special electric heating materials, with low surface power load design and multiple protections, greatly increasing the safety and life of the electric heater.
7. Fully automatic control: According to requirements, through the heater circuit design, automatic control of outlet temperature, flow, pressure and other parameters can be easily realized, and can be networked with computers.
8. Significant energy saving effect, almost 100% of the heat generated by electric energy is transferred to the heating medium.