A 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 a specific heat exchange channel inside the electric heating container, and follows a path designed based on fluid thermodynamics principles to carry 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 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 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, which could otherwise damage the heating element in severe cases, effectively extending the service life of the electric heater.
Application Scope
Typical applications of fluid explosion-proof electric heaters mainly include:
1. Heating and raising temperature of chemical materials in the chemical industry, drying of certain powders under certain pressures, 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), water gas, and other fluids that need to be heated and raised in temperature.
4. Hazardous gas locations of Zone 1 and Zone 2;
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
The 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 the technical level of advanced foreign electric heaters. This electric heating furnace is a working method that uses electrical energy as a power source to convert its internal high-voltage voltage system into thermal energy.
Generally speaking, the explosion-proof electric heating furnace uses thermal oil as the heat carrier. The internal high-voltage voltage system, through the circulation pump of the thermal oil and forced processing of electrical energy, transfers the heat of the internal high-voltage voltage to one or more electric heating equipment. After passing through the transition function in the high-voltage voltage system of the electric heating equipment, the thermal oil starts a new heating work efficiency, that is, it returns to the electric heating furnace through the circulation pump again to absorb heat a second time and transfer it to the internal high-voltage voltage system of the electric heating furnace. Through this cyclic work, the electric heating furnace continuously transfers heat, enabling the internal high-voltage voltage system of the electric heating furnace to obtain a continuous high-temperature energy source, thereby meeting the heating requirements of the heated 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 uninterrupted transfer of the internal high-voltage voltage system, ensuring that the internal high-voltage voltage system of the electric heating equipment 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, light volume, light weight, and convenient installation. It does not cause pollution or harm to the surrounding environment during heating, and can achieve relatively high heating temperatures and efficiency at relatively low working pressures.
3. High level of intelligent standards. Relevant technical personnel of China Electric Heater Network adopt an advanced intelligent heating working mode, that is, by setting the original temperature during operation through the high-temperature voltage 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 DCS system with alarm signals such as operation, high temperature, fault, and shutdown of the heater, and can also accept automatic and shutdown operation commands issued by DCS. Moreover, reliable and safe monitoring devices have been added to the electric heater system. However, the price reference for this type of electric heater is relatively high.
5. The electrical equipment has multiple related interfaces, which can effectively monitor the thermal oil pump, thermal oil temperature and flow, and internal high-voltage voltage pressure at any time, thereby achieving the ideal reform of explosion-proof electric heater that is more energy-saving, more environmentally friendly, and more efficient.
