■Fluid electric heater (also known as circulating electric heater)
Principle: Heating a fluid through forced convection. The fluid is blown/pumped into the heating chamber by a fan/pump at one end of the heater, heated, and then flows out at the other end of the heater. This is a heating method that is forced to circulate through a fan/pump.
Medium: Air, hydrogen, nitrogen, natural gas, mixed gas, and other gases, as well as liquids such as water, heavy oil, weak acid and weak alkali solutions, heat transfer oil, molten salt, etc.
■Function and characteristic
（1）The power of a single heater can reach 5000KW
（2）Heating the medium through the energy conversion form of "conduction+convection" through electrical energy, with a thermal efficiency of up to 99%
（3）Equipped with automatic power supply switching protection device for steam liquid two state conversion
（4）The explosion-proof junction box is equipped with a temperature control protection device, and the explosion-proof structure can work normally in explosive gas hazardous areas in Zones I and II
（5）Reliable structure, high temperature tracking response accuracy, fast response, significant energy saving, no "dripping", "emitting", "leakage", "three wastes", and noise pollution
（6）It can achieve program control of process parameters such as temperature, pressure, flow rate, etc., and can flexibly change the operating temperature to achieve the process process, ensuring uniform output medium temperature of the heater and stable temperature rise
（7）Equipped with overheating protection function for heating elements, preventing flow interruption and accidental damage to heating elements. The internal structure of the heater is designed according to thermodynamic structure without heating dead angles
（8）There must be a certain flow rate at the heater. The flow rate of the internal structure of the heater is greater than the flow rate of the pipeline. The heater can only be started when the medium flow rate is detected. When the electric heating stops working, the heating needs to be stopped first, delayed for a period of time, and then the medium flow rate can be stopped
■Product Features
1. Solid structure, compact sealing, and high thermal efficiency.
2. The maximum heating temperature can reach 950 ℃, which is not achievable by ordinary heat exchangers.
3. Designed with extremely low thermal load and multiple protections such as anti dry burning protection devices, it has a long service life.
4. Suitable for both ordinary and explosion-proof applications, with explosion-proof levels up to B and C, and pressure resistance up to 50Mpa. Vertical and horizontal types can be used according to user needs.
5. The system can achieve automatic operation without the need for daily maintenance. Through circuit design, automatic control of parameters such as temperature, pressure, and flow can be achieved, including DCS system control, achieving human-machine dialogue.
■Application of Gas and Liquid Electric Heaters
Compared with traditional heating methods, gas and liquid heating has significant energy-saving, scientific process, convenient installation and use, high degree of automation, low investment, long service life, and obvious economic benefits. It can be widely used in fields such as petroleum, chemical industry, new energy, nuclear power, railway, shipbuilding, metallurgy, electricity, machinery, medical and health.
■1. Heating of fluid media in industries such as oil fields, refineries, and chemical plants.
■2. Heating of polycrystalline silicon production materials such as hydrogen chloride, silicon tetrachloride, and silicon powder.
■3. Various types of water heating, including water heating in civil bathrooms and industrial process water heating
■4. Heating of hydrocarbons, including heat transfer oil, fuel oil, asphalt, paraffin, etc
■5. Gas heating, including H2, N2, various inert and organic gas mixtures, and superheated steam
■6. Heating of cleaning machines and ice melting tanks, including NaOH solution and various detergents.
■7. Air heating is suitable for powder drying, chemical processes, and spray drying under certain pressure.
