Plate heat exchanger is divided into BR type, BRB type, is composed of heat transfer plate, sealant pad, clamping plate and clamping bolt and other main parts, is made of thin metal with a certain shape corrugated heat exchange plate, and then stacked into a heat exchanger, the working fluid in the two plates formed between the narrow and tortuous channel flow, hot and cold fluid through their respective flow channels, A layer of plates is separated in the middle, through which heat is exchanged between plates. The four corners of the heat transfer plate are provided with a flow channel hole, and the heat transfer plate fitted with a sealant pad is installed on the frame between the fixed clamping plate and the movable clamping plate, and is clamped with a clamping stud. The corrugated heat transfer plate is herringbone, and the adjacent plate has a herringbone groove in the opposite direction. The crossing points of the groove support each other to form a contact point, and turbulence is formed when the medium flows, so as to obtain high heat transfer efficiency. Plate heat exchanger design pressure is not greater than 2.5MPa, the design temperature is not more than 250° C. When the temperature is 150°C - 250°C, it is necessary to add a high temperature regulator to make a "high temperature heat exchange device". |
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