BGY8 Explosion-Proof Electric Heater
Darui Electric recommends
BGY8 Explosion-Proof Electric Heater is an explosion-proof heater. The connecting flange adopts round flange and square flange (add F after the model for square flange). The selected voltage can be 220V or 380V, and a temperature controller can be installed in the wiring chamber. It provides greater convenience for users, with long service life and stable quality.
The reserved hole for flange connection is ≥Φ95. If a temperature controller is required, the reserved hole is ≥Φ110, add "T" after the model, design pressure is 1.6MPa, material is all stainless steel.
BGY8 Explosion-Proof Electric Heater explosion-proof grade is dⅡBT4, steel pipe wiring 380V is M24×1.5; 220V is M20×1.5
Model | Rated Voltage (V) | Power (kW) | A (mm) | L (mm) | Applicable Cable (mm) |
BGY8-220(380)/1 | 220/380 | 1 | 300 | 410 | 12-17 |
BGY8-220(380)/2 | 220/380 | 2 | 400 | 510 | 12-17 |
BGY8-220(380)/3 | 220/380 | 3 | 500 | 610 | 12-17 |
BGY8-220(380)/4 | 220/380 | 4 | 600 | 710 | 12-17 |
BGY8-220(380)/5 | 220/380 | 5 | 720 | 830 | 12-17 |
BGY8-220(380)/6 | 220/380 | 6 | 850 | 960 | 12-17 |
BGY8-220(380)/7 | 220/380 | 7 | 1000 | 1110 | 12-17 |
BGY8-220(380)/8 | 220/380 | 8 | 1150 | 1260 | 12-17 |
Functional Features
Small size, high power[1] : The heater primarily uses clustered tubular electric heating elements. Fast thermal response, high temperature control accuracy, and high overall thermal efficiency. High heating temperature: The maximum operating temperature of the heater can reach 850°C. Uniform medium outlet temperature, high temperature control accuracy. Wide application range, strong adaptability: The heater can be used in explosion-proof or ordinary places, with explosion-proof grade up to dⅡB and C, and pressure resistance up to 20MPa. Long life, high reliability: The heater is made of special electric heating materials, with low design surface power load and multiple protections, greatly enhancing the safety and life of the electric heater. Fully automatic control: According to requirements, through the heater circuit design, parameters such as outlet temperature, flow, pressure can be easily controlled automatically, and can be networked with computers. Significant energy-saving effect, almost 100% of the electric energy is transferred to the heating medium.
Structure
The typical structure of a metal tubular electric heating tube (most common structure) generally consists of 5 parts: insulator, sealing material, lead-out rod, filler, heating wire, metal protective tube, and terminal[1] .
The spiral heating wire and lead-out rod are located in the center of the metal protective tube. The manufacturing process involves threading the spiral heating wire into a seamless steel tube, copper tube, or aluminum tube, and uniformly filling the gaps with an insulating and thermally conductive oxide medium such as crystalline magnesium oxide powder (or aluminum oxide, clean quartz sand, etc.) using a multi-tube filling machine. Then, the tube diameter is reduced using a tube shrinking machine to compact the oxide medium (density above 3.3g/cm³), ensuring the heating wire is isolated from air and does not shift to touch the tube wall. In this way, the heat output per unit area can be increased more than tenfold. The service life can also be correspondingly increased to more than 10 years. Compared with electric heating elements of the same large heat output, tubular electric heating tubes can save 5% of electric heating materials, and the thermal efficiency can reach over 90%.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
