Tubular Type Tube Type Heat Exchanger Copper Tube Bundle With Triple System

Tubular Type Tube Type Heat Exchanger Copper Tube Bundle With Triple System

Tubular Heat exchanger is one of the most widely used heat exchangers in chemical and alcohol

production. It is mainly composed of shell, tube plate, heat transfer tube, head, baffle and other

components. The required material can be made of ordinary carbon steel, copper, or stainless steel,

respectively.

Tubular heat exchanger structure is relatively simple, compact, cheap, but the tube can not be mechanical

cleaning. The heat exchanger tube bundle is connected to the tube plate, and the tube plate is welded at

both ends of the shell, and the top cover and the shell are connected with fluid inlet and outlet.

A series of baffles that are perpendicular to the tube bundle are usually provided outside the tube. At the

same time the pipe and the tube plate and the shell connection are rigid, and the tube tube is two different

temperature fluid. Therefore, when the temperature difference between the wall and the shell wall is large,

due to the different thermal expansion of the two, resulting in a large temperature stress, as well as the

tube twist or pipe from the tube board loose, or even destroy the heat exchanger.

In order to overcome the temperature stress must have a temperature compensation device, generally in

the wall and the wall temperature difference of 50 ℃ or more, for safety reasons, the heat exchanger

should be temperature compensation device.

But the compensation device (expansion joint) can only be used in the shell wall and wall temperature

difference of less than 60 ~ 70 ℃ and shell fluid pressure is not high case.

General shell pressure exceeds 0.6Mpa when the compensation circle is too thick, difficult to stretch, loss

of temperature compensation role, you should consider other structures.