| ● |
Horseshoe type/Round type |
|
This is a heater by processing a fibrous thin plate of the carbon purity 99.8% to carbon filament by the specialized technique and filling it into the quartz glass tube with inert gas such as argon gas.
This is the very new heat source, exceeding the conventional carbon heaters.
 |
Big appeal of Pure carbon heater |
| Since fibers are used for the material, this heater has more elastic force than a sintered type, is resistant to bending strength and beside, and is small and light. |
| The resistance value of the filament is stable for a long time by the highly-pure carbon and power consumption change is small. |
| Since the adjustment of the resistance value is possible by the method of making a slit to the carbon thin plate, flexibility of the size and power consumption expand and the temperature distribution of the heating element can be set freely. |
| This does not pollute the air because infrared heating and radiant heat by light is used, so using in the clean room is possible. |
In comparison of rising water temperature, Pure carbon heater warms water quickly and effectively, then it is effective for energy saving about 30 %.
For example, it is calculated as 690W to get the same heat amount as a halogen heater of 900W. |
| Since a high amount of radiation in the far-infrared area is achieved by the carbon heating element, this warms the body from inside and getting cool is slow. |
By using the material of carbon purity 99.8% for the heating element (filament), the resistance value of the filament is stable for a long time, and a long life design of about 8,000 hours was achieved.
Furthermore, a nearly-constant energy radiation continues until the end of its life. |
This reaches to the full-power about 5 to 10 seconds after turning on the power and gets cool in a short time after turning off the power.
Since the preheating is not necessary, standby time is reduced remarkably and the temperature control is possible by fine ON/OFF operation with a quick response. |
| The [double pipe structure] by inserting a pure carbon heater into a thicker quartz tube and fixing with ceramic glass prevents from surface temperature decreasing and the deterioration caused by the devitrification. |
The heating element (filament) is strong to bend and flexible because the wave density of the carbon fiber is large (high-density) and attempting a thin panel (t = 0.3 mm).
Therefore, flexibility of the shape is high and commercialization is possible such as the straight type/round type, the U-shape type, and the horseshoe type. |
| Since the heat element (filament) is straight angle thin type and the heating area is large and even and the heat radiation characteristics is stable, increasing the heating efficiency can be achieved. |
| Even during lighting, the hardness of the heating element (filament) does not change, the lighting direction can be freely attached to vertical, horizontal, or diagonal. |
| The radiation wavelength of the pure carbon heater radiates a lot 2.5 to 3.5 μm that is the absorption wavelength of water or human skin (wavelength felt warmest). |
| Since Pure carbon heater has a high cool resistance value and the value decreases in inverse proportion to the temperature, the inrush current does not occur when turning on the power. (About 60% of the rated current)Therefore, the protection circuit for the inrush current or surge measurements are not necessary and cost of equipments can be reduced. |
|
