[Column tube heat exchanger tube heat exchanger manufacturers] Which is - Tubular Heat Exchangers - ten thousand liters types: fixed tube sheet heat exchanger tube structure is relatively simple, compact, and the cost is cheap, but tube can not be mechanically cleaned. Such heat exchanger tubes connected to the tube plate, tube plates are welded at both ends of the housing and is connected at its upper cover, the cover and the housing is equipped with fluid and export over. Usually means a series of perpendicular to the tube bundle of the bezel. While the tube and the tube plate and the housing are connected to rigid, while the inner tube is an outer tube of the fluid at two different temperatures. Therefore, when the temperature difference between the wall and the shell wall is large, due to the different thermal expansion between the two, resulting in a lot of thermal stress, as well as the tube or pipe twist loose from the tube sheet, and even destroy the heat exchanger. To overcome the thermal stress must have temperature difference compensating device, usually in the temperature difference between the wall and the shell wall above 50 ℃, for safety reasons, the temperature difference between the heat exchanger due compensation device. But compensation device (expansion joint) can only be used in case the temperature difference between the wall and the wall is less than 60 ~ 70 ℃ and the shell-side fluid pressure is not high. General shell pressure exceeds 0.6Mpa laps due compensation is too thick, it is difficult stretch, losing the temperature difference between the role of compensation, you should consider other structures. Floating head heat exchanger is connected to a tube plate flange and the shell, another piece of duct board is not connected with the housing, so that the tube is heated or cooled free expansion, but a piece of pipe connected to the roof panel, called as "floating head", so this is called the floating head heat exchanger. Its advantages are: the bundle can be pulled out for cleaning; bundle constant expansion shell constraints, so when the two heat when the temperature difference between the media, not because of the different thermal expansion of the tubes and the shell to produce thermal stress . The disadvantage is the complex structure and high cost. This type of heat exchanger tubes function filler end is free to expand, the structure is simpler than the floating head, the cost is lower than the floating head. But inside the shell there is leakage of media possible, the shell should not deal with volatile, flammable, explosive and toxic media. U-tube U-tube heat exchanger, each tube is bent into a U-shaped, with a tube fixed at both ends of the board, each tube Jieke free expansion, thermal compensation so as to solve the problem. Tube of at least two drive tubes can be cleaned out, the tube can be free to expand. The disadvantage is difficult to clean the inner wall of the pipe, the pipe replacement difficult, less pipe tube plate arrangement. The advantages of simple structure, light weight, suitable for high temperature and pressure conditions. Eddy eddy hot-film heat exchanger uses the latest film vortex hot-film heat transfer technology, by changing the state to increase the heat transfer fluid motion effect, when the medium passes through the vortex tube surface, strong erosion of the tube surface, thereby improving heat transfer efficiency. Up to 10000W / m2 ℃. At the same time such a structure to achieve a corrosion-resistant, high temperature, high pressure, anti-scaling function. Other types of heat exchanger fluid flow channel in the form of a fixed direction, flow around the tubes surface convective heat transfer coefficient is reduced. Chemical Equipment Co., Ltd. Shandong million liters (www.wsfanyingfu.com) - located in the southern suburbs of the town ZHOUCUN Zibo City, Shandong Province, convenient transportation and strategic location, is one of Zibo City chemical equipment manufacturers. Our company is a professional chemical equipment manufacturers, the main products for the glass-lined reactor, glass-lined stainless steel vessel and stirrer, thermowell, a variety of all kinds of glass-lined pipes, elbows, tees, crosses and user customized non-standard equipment. The company's strong technical force, advanced production technology, equipment, product can be used in a variety of highly corrosive conditions, praised by users and trust. In recent years, the company continued to engage in technological innovation, improve production processes, improve the level of technology, new product launch to improve product quality as the chemical industry, contributed to prolong equipment life, unanimously praised the user. My company's services: the contract, keeping promises, the quality of survival, to efficiency and development, has always been to adapt and promote industrial development for the purpose.