The surface temperature of the electric heating tube is the heat generated by the heating wire through the heating tube filled with magnesium oxide powder after electricity to the tube body, then the surface of the heating tube has the temperature, how can we know the surface temperature of the electric heating tube?
The surface temperature of the electric heating tube is determined by the surface load of the electric heating tube, and the surface load of the electric heating tube is determined by the surface area and power of the electric heating tube.
First of all, we need to know what is the surface load of the electric heating tube. The surface load refers to the power number shared by the unit area on the surface of the electric heating element, which is expressed by W/cm2.
Surface load calculation formula: power W/ [pipe diameter (cm) *3.14*L(cm)]
(1) Static air
When the surface load reaches 1W/cm2, the surface temperature of the heating tube can reach 300 degrees;
When the surface load reaches 2W/cm2, the surface temperature of the heating tube can reach 420 degrees;
When the surface load reaches 3W/cm2, the surface temperature of the heating tube can reach 500 degrees;
When the surface load reaches 4W/cm2, the surface temperature of the heating tube can reach 580 degrees.
When the surface load reaches 5W/cm2, the surface temperature of the heating tube can reach 630 degrees.
When the surface load reaches 6W/cm2, the surface temperature of the heating tube can reach 680 degrees.
(2) Mobile air
1. The wind speed of 3 m/s
(1) Surface load: 1W /cm2, surface temperature: about 140℃
(2) Surface load: 2W /cm2, surface temperature: about 280℃
(3) Surface load: 3W /cm2, surface temperature: about 360℃
(4) Surface load: 4W /cm2, surface temperature: about 440℃
2. The wind speed of 6 m/s
(1) Surface load: 1.2W /cm2, surface temperature: about 120℃
(2) Surface load: 2W /cm2, surface temperature: about 200℃
(3) Surface load: 3W /cm2, surface temperature: about 270℃
(4) Surface load: 4W /cm2, surface temperature: about 340℃
(5) Surface load: 5W /cm2, surface temperature: about 390℃
3. The wind speed of 9 m/s
(1) Surface load: 1.4W /cm2, surface temperature: about 100℃
(2) Surface load: 2W /cm2, surface temperature: about 150℃
(3) Surface load: 3W /cm2, surface temperature: about 220℃
(4) Surface load: 4W /cm2, surface temperature: about 280℃
(5) Surface load: 5W /cm2, surface temperature: about 330℃
4. The wind speed of 12 m/s
(1) Surface load: 1.8W /cm2, surface temperature: about 110℃
(2) Surface load: 2W /cm2, surface temperature: about 120℃
(3) Surface load: 3W /cm2, surface temperature: about 180℃
(4) Surface load: 4W /cm2, surface temperature: about 230℃
(5) Surface load: 5W /cm2, surface temperature: about 280℃
