Description: Heat
pipe vacuum
tubeModel: JPH
Heat pipes vacuum
tube might seem like a new concept, but you are probably using them everyday and don't even know it.
Laptop computers often using small heat pipes to conduct heat away from the CPU, and air-conditioning system commonly use heat pipes for heat conduction.
Structure and Principle
The heat
pipe is hollow with the space inside evacuated, much the same as the
solar tube. In this
case insulation is not the goal, but rather to alter the state of the liquid inside. Inside the heat
pipe is a small quantity of purified
water and some special additives. At sea level
water boils at 100, but if you climb to the top of a mountain the boiling temperature will be less that 100. This is due to the difference in
air pressure.
Based on this principle of
water boiling at a lower temperature with decreased
air pressure, by evacuating the heat pipe, we can achieve the same result. The heat pipes used in
solar collectors have a boiling point of only 30. So when the heat
pipe is heated above 30 the
water vaporizes. This vapour rapidly rises to the top of the heat
pipe transferring heat. As the heat is lost at the condenser (top), the vapour condenses to form a liquid (
water) and returns to the bottom of the heat
pipe to once again repeat the process.
At room temperature the
water forms a small ball, much like mercury does when poured out on a flat surface at room temperature. When the heat
pipe is shaken, the
ball of
water can be heard rattling inside. Although it is just water, it sounds like a piece of
metal rattling inside.
This explanation makes heat pipes sound very simple. A hollow copper
pipe with a little bit of
water inside, and the
air sucked out! Correct, but in order to achieve this result more than 20 manufacturing procedures are required and with strict
quality control.
| Brand: | jinyi Heat pipe solar collector OEM service provided |
|---|
| Model No. : | JPH |
|---|
| Payment Terms : | L/C T/T |
|---|
| Price Terms : | FOB |