T fin tube is a kind of high efficient heat exchange tube that is made by rolling processing and molding of the light pipe. Its structure characteristic is forming a series of spiral ring T tunnel on the outside the pipe surface.

The medium outside the pipe forms a series of bubbles in the tunnel nuclear when heated. And because the tunnel cavity is in a heated state, the bubble nucleus rapidly expands and increases the inside pressure rapidly by continuously heating, then erupts from a crack in the pipe surface. There is a strong flush power and a certain negative pressure with the bubbles erupting, and which makes the low temperature liquid flow into the T tunnel forming the constant boiling. This way of boiling sends out the heat is much large than the light pipe in an hour and an surface square, so T-type tube has the higher ability of boiling heat transfer.