To overcome the temperature difference between the heat exchanger temperature difference must stress compensation device, usually when 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 Monel reactor, the temperature difference between the compensation of the loss of the role of the reactor, it should consider other structures. Free expansion when the heat exchanger tube sheet is connected to the housing flange, the other tube plate is not connected to the housing, to heat or cool the tube nickel reactor, but in this connection a top tube plate, said 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. Titanium reactor, manufacturing (certified), the reactor is provided by Special Metals Co., Ltd. Weifang djeke. Weifang djeke Special Metals Ltd. (www.taihuanreqi.com) (www.taihuanreqi.com) is an industry leader in Shandong Weifang, chemical equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum limits to meet customer needs. In djeke leadership with the staff warmly welcome all inquiries negotiations to create a better future djeke. You can also access (www.taihuanreqi.com/supply_details_45373115.html), for more information about the company.