Heat exchanger adopting copper spiral plate

Abstract

The invention discloses a heat exchanger adopting a copper spiral plate. The heat exchanger comprises a barrel body and a spiral plate arranged in the barrel body, wherein an inlet and an outlet are respectively formed in the upper part and the lower part of the barrel body; the spiral plate is a double-helix structure which sequentially comprises a helix a and a helix b from inside to outside; the helix a is in the form of a folded e winding outwards by taking two metal plates as the center; the helix b surrounds the helix a by taking the two metal plates as the center; and the helix a and the helix b are each provided with a cold fluid channel and a hot fluid channel which are split from each other. The heat exchanger adopts the copper spiral plate, so that on one hand, heat exchange efficiency in unit volume can be effectively improved for being suitable for an occasion that heat exchange efficiency in unit volume is required to be high due to structural limitations; on the other hand, on the condition of meeting working conditions, the size of the heat exchanger is reduced and the cost is reduced; moreover, a back flushing structure is arranged on the spiral plate, so that back flushing for descaling is easily realized, and a blockage phenomenon of the heat exchanger is avoided.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a copper spiral plate heat exchanger. Background technique [0002] Carbon steel or stainless steel spiral plate heat exchangers are widely used in the field of heat exchange due to their small size and high heat transfer efficiency. Under the condition of constant structural parameters and the same corrosion resistance, a 100㎡ Compared with the traditional heat exchanger, the thermal efficiency of the 304 austenitic stainless steel spiral plate heat exchanger can be increased by more than 20 times (the initial configuration cost is higher), or under the same thermal efficiency, the spiral plate heat exchanger The heat area only needs one-twentieth of the traditional heat exchanger, and the initial configuration cost is also greatly reduced. It can be seen that, under the premise of achieving the same heat exchange effect, the smaller the heat exchange area of ​​the heat ex...

AI Technical Summary

Problems solved by technology

[0002] Carbon steel or stainless steel spiral plate heat exchangers are widely used in the field of heat exchange due to their small size and high heat transfer efficiency. Under the condition of constant structural parameters and the same corrosion resistance, a 100㎡ Compared with the traditional heat exchanger, the thermal efficiency of the 304 austenitic stainless steel spiral plate heat exchanger can be increased by more than 20 times (the initial configuration cost is higher), or under the same thermal efficiency, the spiral plate heat exchanger The heat area only needs one-twentieth of the traditional heat exchanger, and the initial configuration cost is also greatly reduced. It can be seen that, under the premise of achieving the same heat exchange effect, the smaller the heat exchange area of ​​the heat exchanger, the lower the cost input. The smaller it is, but the thermal conductivity of existing carbon steel or stainless steel is obviously lower than that of copper, the heat transfer efficiency per unit volume is low, and the spiral pipe of the spiral plate is prone to blockage, which requires regular cleaning and sewage discharge

Images