News Details

Explosion-proof Gas Electric Heater

Fluid explosion-proof electric heater is a device that consumes electrical energy to convert it into thermal energy for heating the material to be heated. During operation, the low-temperature fluid medium enters its input port under pressure through a pipeline, flows along the specific heat exchange channels inside the electric heating container, following the path designed based on fluid thermodynamics principles, and carries away the high-temperature thermal energy generated by the electric heating elements during operation, thereby raising the temperature of the heated medium. The outlet of the electric heater obtains the high-temperature medium required by the process. The internal control system of the electric heater automatically adjusts the output power of the electric heater based on the temperature sensor signal at the outlet, ensuring uniform temperature of the medium at the outlet. When the heating element overheats, the independent overheat protection device of the heating element immediately cuts off the heating power supply, preventing the heated material from overheating, coking, deteriorating, or carbonizing, and in severe cases, preventing the heating element from burning out, effectively extending the service life of the electric heater.

Application Scope

Typical applications of fluid explosion-proof electric heaters mainly include:
1. Heating and temperature raising of chemical materials in the chemical industry, drying of certain powders under specific pressure, chemical processes, and spray drying.
2. Heating of hydrocarbons, including crude oil, heavy oil, fuel oil, thermal oil, lubricating oil, paraffin, etc.
3. Heating of process water, superheated steam, molten salt, nitrogen (air) gas, water gas, and other fluids that require temperature raising.
4. Zone 1 and Zone 2 hazardous gas locations;
5. Explosive gas or vapor atmospheres of Groups IIA, IIB, T1 to T4;
6. Due to the adoption of advanced explosion-proof structures, the equipment can be widely used in chemical, military, petroleum, natural gas, offshore platforms, ships, mining areas, and other places requiring explosion-proof measures.

Main Uses in the Mechanical Electric Heating Industry

Explosion-proof Electric Heater is an efficient, energy-saving, environmentally friendly, and safe explosion-proof industrial electric heating furnace for high-voltage thermal energy, developed based on advanced foreign electric heater technology. This electric heating furnace operates by using electrical energy as a power source to convert its internal high-voltage temperature system into thermal energy.
　　Generally speaking, an explosion-proof electric heating furnace uses thermal oil as the heat carrier. The internal high-voltage temperature system, through the circulation pump of the thermal oil and forced processing by electrical energy, transfers the heat from the internal high-voltage temperature system to one or more electric heating devices. After passing through the transition function in the high-voltage temperature system of the electric heating device, the thermal oil begins a new heating work cycle, i.e., it returns through the circulation pump to the electric heating furnace to absorb heat again and transfer it to the internal high-voltage temperature system of the electric heating furnace. Through this cyclic operation, the electric heating furnace continuously transfers heat, enabling the internal high-voltage temperature system to obtain a sustained high-temperature energy source, thereby meeting the heating requirements of the heated medium during high-temperature processes.
　　The characteristics of explosion-proof electric heaters in the mechanical electric heating industry are as follows:
　　1. It can achieve uninterrupted transfer of the internal high-voltage temperature system, ensuring that the internal high-voltage temperature system of the electric heating device uses electrical energy to obtain a higher temperature energy source, meeting the high-temperature heating requirements of the medium during operation and maximizing its effect.
　　2. This equipment has a precise structure, small volume, light weight, and is easy to install. During heating, it does not cause harmful pollution to the surrounding environment and can achieve relatively high heating temperatures and efficiency at relatively low working pressures.
　　3. High level of intelligence. The relevant technical personnel of China Electric Heater Network adopt an advanced intelligent heating working mode, i.e., by setting the original temperature of the high-voltage temperature medium inside the gas electric heater during operation. In experiments, this temperature control accuracy can reach a range of ±2℃ to ±0.2℃.
　　4. The internal high-voltage system of this equipment can provide alarm signals such as operation, high temperature, fault, and shutdown to the DCS system, and can also accept automatic and shutdown operation commands from the DCS. Additionally, a reliable and safe monitoring device is added to the electric heater system. However, the price of this electric heater is relatively high.
　　5. The electrical equipment has multiple associated interfaces, allowing effective monitoring of the thermal oil pump, thermal oil temperature and flow, and internal high-voltage pressure at any time, thereby achieving an ideal reform of explosion-proof electric heaters that is more energy-saving, environmentally friendly, and efficient.