The convective heat transfer coefficient represents the strength of convective gas heat transfer. There are many influencing factors, which can be summarized as follows: first, the flow state of the fluid. Since the turbulent flow state is the most intense and can destroy the Boundary layer, the Heat transfer coefficient of the turbulent flow state is higher than that of other states. Secondly, there is the power of the fluid, and the heat transfer coefficient of forced flow will be significantly greater than that of natural flow.
The traditional filling method for fractionation tower fillers is to form a disk outside the tower according to the block diagram and packing label after the packing is unpacked, and then hoist it onto the tower according to the serial number. During this process, it is easy to cause problems such as deformation of the packing pieces or impurities brought into the packing blocks. After years of exploration, DEAR Air Separation has made improvements to this process. By using customized whole disc structured fillers to avoid deformation issues, using innovative spring pins and prototype hanging discs, the horizontal filling is changed to vertical filling. This new process method not only simplifies the lifting and installation process of fillers, but also solves the verticality problem between the packing tray and the packing tower. It is a very typical case of new ideas driving productivity development.
