Fluid explosion-proof electric heater is a device that converts electrical energy into thermal energy to heat the material to be heated. During operation, the low-temperature fluid medium enters its inlet under pressure through the pipeline, flows along the specific heat exchange channel inside the electric heating container, and follows the path designed based on fluid thermodynamics principles, taking away the high-temperature thermal energy generated by the electric heating element 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 to prevent coking, deterioration, or carbonization of the heated material due to overtemperature, and in severe cases, damage to 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 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, heat transfer oil, lubricating oil, paraffin, etc.
3. Process water, superheated steam, molten salt, nitrogen (air), water gas, and other fluids that need to be heated and raised in temperature.
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 adoption of 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
Explosion-proof electric heater is an efficient, energy-saving, environmentally friendly, and safe explosion-proof industrial electric heating furnace developed based on advanced foreign electric heater technology, providing high-voltage thermal energy. 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, the explosion-proof electric heating furnace uses heat transfer oil as the heat carrier. The internal high-voltage temperature system, through the circulation pump of the heat transfer oil and forced processing by electrical energy, transfers the heat from the internal high-voltage temperature to one or more electric heating equipment. After passing through the transition function in the high-voltage temperature system of the electric heating equipment, the heat transfer oil begins a new heating work efficiency, i.e., it returns through the circulation pump to the electric heating furnace to absorb heat a second time and transmit it to the internal high-voltage temperature system of the electric heating furnace. Through this cyclic operation, the electric heating furnace continuously transfers heat, allowing its 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 high-voltage temperature system of the internal electric heater equipment obtains a high-temperature energy source using electrical energy, meeting the high-temperature heating requirements of the medium during operation, and maximizing its effect.
2. This equipment has a precise structure, light volume, light weight, and convenient installation. During heating, it does not produce harmful pollution to the surrounding environment and can achieve relatively high heating temperature and efficiency under relatively low working pressure.
3. High level of intelligence. Relevant technical personnel of China Electric Heater Network adopt advanced intelligent heating working mode, i.e., by setting the original temperature in the working process through the high-voltage temperature medium inside the gas electric heater. 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 issued by the DCS. Moreover, a reliable and safe monitoring device is added to the electric heater system, but the price reference for this type of electric heater is relatively high.
5. The electrical equipment has multiple associated interfaces, which can effectively monitor the heat transfer oil pump, temperature and flow of heat transfer oil, and internal high-voltage pressure at any time, thereby achieving more energy-saving, environmentally friendly, and efficient ideal reform of the explosion-proof electric heater.
