Fabricated Coil of coal to methanol heating furnace by Qingdao Hexin Machinery Co.,Ltd.
Fabricated Coil of coal to methanol heating furnace by Qingdao Hexin Machinery Co.,Ltd. 1. Tube bundle Among the shell-and-tube heat exchangers, the simplest is the single-tube heat exchanger. If the heat transfer surface needs to be increased, the method of increasing the number of tubes is generally used. After the number of tubes is increased, the tube bundle can be divided to prevent the increase of the number of tubes. Afterwards, the flow velocity in the tube and the heat transfer coefficient are reduced. From the perspective of manufacturing, installation and operation, an even number of tube passes is generally used and the number of passes should not be too many. 2. Tube sheet The tube sheet is one of the important parts of the heat exchanger, which is used to arrange the heat exchange tubes and plays the role of separating the tube side and the shell side space. The thin tube sheet has the advantage of saving materials and is used in medium and low pressure heat exchang...