Working principle and functional characteristics of explosion-proof electric heater

The principle of the editing of the explosion-proof electric heater:

The fluid explosion-proof electric heater is a kind of electric energy conversion to heat energy to heat the material to be heated. In the work of low temperature fluid through a pipe under pressure into the input port, along the electric heating container specific heat flow path using fluid thermodynamic principle, take heat energy generated in the heating element, the heating medium temperature, high temperature medium electric heater export process requirements. The electric heater internal control system according to the automatic regulation of the heater power output temperature sensor signal output port, the output port of the uniform medium temperature; when the heating element overheating, overheating protection device independent of the heating element immediately cut off the heating power, heating the material to avoid overheating caused by coking, metamorphism, carbonization, leading to severe fever element burn, prolong the service life of the electric heater.

The typical applications of the fluid explosion-proof electric heater are as follows:

Chemical industry materials heating and heating, some powder drying, chemical process and spray drying under certain pressure.

Hydrocarbon heating, including oil crude oil, heavy oil, fuel oil, heat conduction oil, oil, stone wax, etc.

Process water, superheated steam, molten salt, nitrogen (air) gas, water gas and so on, and so on.

Because of the advanced explosion-proof structure, the equipment can be widely applied to chemical industry, military industry, petroleum, natural gas, offshore platforms, ships and mining areas.

Functional characteristics

Small volume and high power: the heater mainly adopts a cluster tubular electric heating element

The heat response is fast, the temperature control precision is high, and the comprehensive thermal efficiency is high.

The heating temperature is high: the heater can be designed for the highest working temperature of 850 degrees C.

The temperature of the medium is uniform and the precision of temperature control is high.

Wide application and strong adaptability: the heater can be applied to explosion-proof or ordinary occasions, explosion-proof grade can reach D II B grade and C grade, and the pressure can be up to 20MPa.

Long life and high reliability: the heater is made of special electrothermal material, and its surface power load is low, and multiple protection is adopted, so that the safety and life of electric heater will be greatly increased.

Fully automatic control: according to the requirement, through heater circuit design, it can realize automatic control of outlet temperature, flow and pressure and so on, and it can be networked with computer.

The energy saving effect is remarkable, the energy produced by electric energy is almost 100% to the heating medium.

Electric energy is converted into heat to heat an object. It is a form of electrical energy utilization. Compared with the general fuel heating, electric heating can obtain higher temperature (such as electric arc heating, the temperature can reach more than 3000 DEG C), automatic control and remote control to achieve the temperature (such as vehicle, electric heating cup) can according to the needs of the heated object to maintain certain temperature distribution. Electric heating can directly generate heat inside the heated object, so the thermal efficiency is high, and the heating speed is fast. According to the heating process requirements, the whole heating or local heating (including surface heating) can be realized, which is easy to realize vacuum heating and controlled atmosphere heating. In the process of electric heating, the waste gas, residue and dust can be produced, which can keep the heated object clean and not pollute the environment. Therefore, electric heating is widely used in the fields of production, scientific research and testing. Especially in the manufacture of single crystals and transistors, mechanical parts and surface quenching, smelting of ferroalloys and manufacture of artificial graphite, electric heating is used.

According to the different ways of electric energy conversion, electric heating is usually divided into resistance heating, induction heating, arc heating, electron beam heating, infrared heating and dielectric heating.