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An explosion-proof electric heater is a device that converts electrical energy into heat energy for use in explosion-proof environments. It is used to raise, maintain, or heat the temperature of flowing or stationary liquid, gaseous, or solid media.
- Chinese Name
- Explosion-Proof Electric Heater
- Working Method
- Conversion of electrical energy into heat energy
- Function
- Heating, heat preservation, and heating
- Features
- Small size, high heating power
Table of Contents
- 1 Product Features
- 2 Working Principle
- 3 Application Scope
- 4 Main Uses in the Mechanical Electric Heating Industry
Product Features
1. Small size, high heating power;2. Can heat various media in various occasions, such as explosion-proof environments;
3. Heating temperature can usually reach 720°C;
4. The heating system can be fully automated, including control via a 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 a pipeline under pressure, flows along a specific heat exchange channel inside the electric heating container, designed based on fluid thermodynamics principles, and carries away the high-temperature thermal energy generated by the heating elements, 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 based on the temperature sensor signal at the outlet, ensuring uniform temperature of the medium at the outlet. When the heating element overheats, its independent overheat protection device immediately cuts off the heating power supply, preventing the heated material from overheating, coking, deteriorating, or carbonizing, which could otherwise damage the heating element, effectively extending the service life of the electric heater.Application Scope
Typical application scenarios 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, etc., requiring heating.
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 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 is a working method that uses 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 thermal oil as the heat carrier. The internal high-voltage temperature system, through the circulation pump of the thermal oil, forces the electrical energy to convert the heat of 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 efficiency, that is, it returns to the electric heating furnace through the circulation pump to absorb heat a second time and transfer it to the internal high-voltage temperature system of the electric heating furnace. Through this cyclic work, the electric heating furnace continuously transfers heat, allowing the internal high-voltage temperature system to obtain a continuous 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 continuous transfer of the internal high-voltage temperature system, ensuring that the internal high-voltage temperature 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, maximizing its effect.
2. This equipment has a precise structure, small volume, light weight, and easy installation. During heating, it does not produce 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, that is, by setting the original temperature of the high-voltage temperature medium inside the gas electric heater during operation, the temperature control accuracy can reach a range of ±2°C to ±0.2°C in experiments.
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 has been added to the electric heater system, but 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 temperature pressure at any time, thereby achieving the ideal reform of explosion-proof electric heaters for greater energy saving, environmental protection, and efficiency.
