New plate and shell heat exchanger

Thread Content

Plate and shell heat exchanger is a type of heat exchanger composed of plate bundles and shells. It combines the advantages of shell and tube and plate heat exchangers. It has the advantages of high heat transfer efficiency, strong applicability, reliable sealing method, light weight and small size, and multi-form process structure. It is widely used in industrial sectors such as chemical industry, petroleum, medicine, food, energy, electric power and papermaking. However, there are still some shortcomings in current plate and shell heat exchangers, such as: When the plate bundle is long, the fluid on the plate side is unevenly distributed due to the unequal resistance of the far and near flow channels. ； On the shell side, the flow is uneven due to the different distances between the plates to the inlet. These seriously affect the heat transfer efficiency of the plate and shell heat exchanger, and some parts are prone to scaling due to low flow rates. The new plate and shell plate heat exchanger is mainly composed of a shell, a plate bundle, and a fluid distributor. The fluid distributor uses a stainless steel punched plate. The distribution density of the holes varies with the distance from the inlet. The hole diameter varies according to the properties of the fluid and the depth of the corrugated groove of the plate. The plate and shell heat exchanger has a filtering function for the fluid entering the shell side and is equipped with a backwash relief port. In this way, the problem of uneven fluid distribution is solved and the heat exchange efficiency of the plate and shell heat exchanger is improved.