Plate heat exchanger is an efficient and compact heat exchange equipment. Plate heat exchanger is a kind of high-efficiency heat exchange equipment usually used in refrigeration, chemistry, metallurgy, machinery, electric power and other industries and fields. It is a kind of equipment different from ordinary electrical appliances. Plate heat exchanger is a type of heat exchanger, which is made up of rows of metal sheets with a certain corrugated shape.What are the working principles and advantages of plate heat exchangers?
(1) Working principle of plate heat exchanger
Plate heat exchanger is a kind of heat exchanger formed by pressing thin metal plates into heat exchange plates with a certain corrugated shape, and then assembling them with frame plates and bolts. The working fluid flows through the narrow and tortuous channel formed between the two plates. The hot and cold fluids pass through the flow channel in turn, and there is an interlayer plate in the middle to separate the fluids and exchange heat through the plates.
(2) Advantages of plate heat exchanger
a. The volume is 1/3-1/5 of the volume of the shell and tube heat exchanger, which not only saves metal materials, but also reduces the area occupied
b. The stainless steel sheet used is generally 0.6mm-0.8mm, so it has a high heat transfer efficiency
c. Simple structure, convenient cleaning, and convenient for daily maintenance. It is very convenient for heat exchange processes that require frequent cleaning of equipment.
d. Small heat loss. Only the shell plate of the heat transfer plate of the plate heat exchanger is exposed to the atmosphere, so the heat loss can be neglected, and no insulation measures are required.