Xinxiang city tube machine tool factory   

Hello: I am in Xinxiang City, Henan province tube machine tool factory (formerly Xinxiang city medium pressure valve factory). Now it belongs to Huojia County of Henan Province boiler plant. One, introduction: Since the first publication of Luwsun et al USA tube academic report in 1966, threaded pipe as a high efficient heat exchange component, has aroused great attention. At present in our country has been more and more widely used. Screw thread tube is a concave convex outer heat pipe, the cold rolling equipment using method of ordinary light tube is processed into thread tube. Two, advantages: In 1, the boiler application, through heat exchange and flow resistance after optimization, a thread smoke tube heat transfer is equivalent to the 1.7-1.8 root of the same size of ordinary smoke tube. This not only makes the smoke tube significantly reduced the number, but also can reduce the diameter of the shell, therefore, pressure components of steel consumption decreased significantly, save steel, reduce cost. 2, in the air conditioning and refrigeration industry, and general...