Views:0 Author:Site Editor Publish Time: 2020-03-20 Origin:Site
The plate and shell heat exchanger is a set of double arc (or plasma arc) welded corrugated plate groups placed in the shell, replacing the heat exchange tubes of the original shell and tube heat exchanger. Heater.
The plate and shell heat exchanger is composed of a corrugated plate group and a shell. It has the advantages of high heat exchange efficiency, small end temperature difference, high temperature and pressure resistance, good sealing performance, reduced pressure, saving floor space, safety and reliability, and compact structure , Is a new type of heat exchanger that combines the advantages of plate heat exchanger and shell and tube heat exchanger. Widely used in refrigeration, oil refining, chemical, pharmaceutical, food, beverage, beer, metallurgy, electric power, environmental protection, oil cooler and other industrial fields.
When the fluid flows through the corrugated plate, a high turbulence can be generated in the countercurrent direction, which greatly improves the heat exchange efficiency. The plate and shell heat exchanger adopts a compact plate structure, which is small in size, easy to maintain and save material. Its high heat transfer coefficient makes it cost-effective, which not only guarantees the performance, but also brings more work benefits.
Because the fluid flows in a fully counter-current manner inside the heat exchanger, it can reach the end temperature difference that cannot be achieved by other types of all-welded heat exchangers. And its cover can be opened to mechanically clean the flow channel. This kind of heat exchanger has higher shear stress in the flow channel than other types of welded heat exchangers, so it is not easy to scale.
At the same time, its unique flow channel design can also be used as an efficient condenser. The heat transfer plate is pressed from a metal plate with a thickness of 0.8mm to 1.2mm. The corrugated shape is similar to a detachable heat exchanger. Since there are no other non-heat exchange areas such as flow channel holes on the plate, the entire plate area is almost the entire The use of heat exchange improves the utilization of metal materials. At the same time, the arrangement of the nozzles is different from that of the removable plate heat exchanger, which greatly eliminates the "dead zone" phenomenon of hydraulic distribution between the plates.
Product advantages of plate and shell heat exchanger:
● The equipment can be cleaned by CIP, or disassembled and cleaned
● Plate is welded by plasma arc
● High heat transfer efficiency, almost all the plate surface participates in heat exchange
● Small footprint, comparable to detachable plate heat exchanger
● The caliber of the inlet and outlet is flexible, and the design is adaptable
● No gasket, low use and maintenance cost