Typical Applications of Fluid Explosion-Proof Electric Heaters
1. Small size, high heating power;2. Can heat various media in various occasions, such as explosion-proof occasions;
3. Heating temperature can usually reach 720℃
4. The heating system can be fully automated, including control through DCS system;
5. Long service life, with multiple protection systems, safe and reliable.
Working Principle
Fluid explosion-proof electric heater is a device that consumes electrical energy and converts it 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, following the path designed based on fluid thermodynamics principles, and takes away the high-temperature thermal energy generated by the electric heating elements during operation, raising the temperature of the heated medium. The outlet of the electric heater provides 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 medium temperature at the outlet; when the heating element overheats, the independent overheat protection device immediately cuts off the heating power supply, preventing the heated material from overheating, coking, deteriorating, carbonizing, or even burning out the heating element, effectively extending the service life of the electric heater.Application Scope
Typical applications of fluid explosion-proof electric heaters mainly include:1. Heating of chemical materials in the chemical industry, drying of some powders under certain pressure, chemical processes, and spray drying.
2. Heating of hydrocarbons, including crude oil, heavy oil, fuel oil, thermal oil, lubricating oil, paraffin, etc.
3. Process water, superheated steam, molten salt, nitrogen (air) gas, water gas, and other fluids that need to be heated.
4. Zone 1 and Zone 2 hazardous gas locations;
5. IIA, IIB class T1 to T4 groups of explosive gas or vapor environments;
6. 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 measures.
Main Uses in the Mechanical Electric Heating Industry
The explosion-proof electric heater is a high-efficiency, energy-saving, environmentally friendly, and safe explosion-proof industrial electric heating furnace developed based on advanced foreign electric heater technology. This electric heating furnace is a working method that uses electrical energy as a power source to convert its internal high-temperature voltage system into heat energy.Generally speaking, the explosion-proof electric heating furnace uses thermal oil as the heat carrier. The internal high-temperature voltage system, through the circulation pump of the thermal oil and forced processing by electrical energy, transfers the heat of the internal high-temperature voltage to one or more electric heating devices. After passing through the transition function of the high-temperature voltage system in the electric heating device, the thermal oil starts a new heating work cycle, i.e., returns to the electric heating furnace through the circulation pump to absorb heat a second time and transfer it to the internal high-temperature voltage system of the electric heating furnace. Through this cyclic work, the electric heating furnace continuously transfers heat, enabling the internal high-temperature voltage system to obtain a continuous high-temperature energy source, thereby meeting the heating requirements of the heating medium during high-temperature processes.
The characteristics of the explosion-proof electric heater in the mechanical electric heating industry are as follows:
1. It can achieve continuous transfer of the internal high-temperature voltage system, ensuring that the internal high-temperature voltage system of the electric heating device obtains high-temperature energy using electrical energy, meeting the high-temperature heating requirements of the medium during operation, and maximizing its function.
2. This equipment has a precise structure, small volume, light weight, and easy installation. During heating, it does not cause pollution to the surrounding environment and can achieve relatively high heating temperature and efficiency at relatively low working pressure.
3. High level of intelligence. Relevant technical personnel from China Electric Heater Network adopt an advanced intelligent heating working mode, i.e., by setting the original temperature of the high-temperature voltage medium inside the gas electric heater during work. 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 flow, and internal high-voltage pressure at any time. This enables the explosion-proof electric heater to achieve more energy-saving, environmentally friendly, and efficient ideal reforms.
