Darui Electric recommends
An explosion-proof electric heater is a device that converts electrical energy into thermal energy to heat the required materials. During operation, the low-temperature fluid medium enters the input port under pressure through the 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 electric heater outlet 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, the independent overheat protection device immediately cuts off the heating power supply, preventing coking, deterioration, or carbonization caused by overheating of the heated material, and in severe cases, preventing damage to the heating element, effectively extending the service life of the electric heater.
Parameters of BGY8-220 (380)/3 Explosion-proof Electric Heater:
Model BGY | Rated Voltage (V) | Power (KW) | A mm | L mm | Working Temperature ℃ | Applicable Cable m㎡ | |
220V | 380V | ||||||
BGY2-220/0.2 | 220 | 0.2 | 140 | 240 | 300 | 12 | 2.5 |
BGY2-220/1 | 220 | 1 | 255 | 355 | 300 | 12 | 4 |
BGY2-220/2 | 220 | 2 | 305 | 405 | 300 | 12 | 4 |
BGY2-220/3 | 220 | 3 | 355 | 455 | 300 | 12 | 6 |
BGY2-220/4 | 220 | 4 | 405 | 505 | 300 | 12 | 6 |
BGY4-220/5 | 220 | 5 | 550 | 650 | 300 | 12 | 8 |
BGY4-220/6 | 220 | 6 | 650 | 750 | 300 | 12 | 10 |
BGY4-220/7 | 220 | 7 | 750 | 850 | 300 | 12 | 10 |
BGY4-220/8 | 220 | 8 | 850 | 950 | 300 | 12 | 16
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Maintenance Measures:
a. Regularly clean the heater according to the actual working mode and the contamination level of the fluid. Use an appropriate cleaning solution to flush away muddy deposits, while solid deposits inside or in recesses of the components require disassembly of the heating element assembly for removal. To avoid damaging the heating elements or the recesses of the heater, use a suitable solvent for cleaning.
b. Only the conduit side of the heating element assembly can be cleaned with liquid cleaners or solvents.
c. After cleaning the heater, reassemble the heater in the reverse order of the above steps, replace the new flange gasket, and test the heating elements.
Troubleshooting and Repair:
1. Heating power too low, heating temperature too low:
2. Check the heating elements and circuits
3. Check the function and settings of the temperature controller
4. Clean the heating element assembly
Precautions:
1. The elements are allowed to work under the following conditions:
A. Relative humidity of air not greater than 95%, no explosive or corrosive gases. (Except for explosion-proof heaters)
B. Working voltage should not exceed 1.1 times the rated value, and the housing should be effectively grounded.
C. Insulation resistance ≥1MΩ, dielectric strength: 2KV/1min.
2. The electric heating tube should be properly fixed and positioned, and the effective heating area must be fully immersed in liquid or solid metal. Empty burning is strictly prohibited. If scale or carbon deposits are found on the tube surface, clean them promptly before reuse to avoid affecting heat dissipation and shortening service life.
3. When heating fusible metals or solid nitrates, alkalis, asphalt, paraffin, etc., first reduce the operating voltage, and only after the medium melts can the voltage be raised to the rated value.
4. When heating air, the elements should be arranged crosswise and evenly to ensure good heat dissipation conditions, allowing the flowing air to be fully heated.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
