Plastic roll-forming heat exchange plate and manufacturing process

Abstract

The invention discloses a plastic roll-forming heat exchange plate and a manufacturing process, the heat exchange plate comprises a heat exchange plate body, a heat transfer medium I and a heat transfer medium II, the heat exchange plate body comprises an inlet header pipe, an outlet header pipe and a plurality of hollow channels which are connected and isolated in the plane direction through connecting strips, the inlet header pipe is communicated with inlets of the hollow channels, and the outlet header pipe is communicated with outlets of the hollow channels; a circulation channel of a first heat transfer medium is formed in the heat exchange plate body, and a second heat transfer medium circulates on the outer side surface of the heat exchange plate body. The plastic heat exchange plate huffing forming process comprises the steps of parison extrusion, parison cutting, die assembly, blowing, deflation, die opening, product taking out and the like. By means of the mode, the plastic roll-forming heat exchange plate and the manufacturing process have the advantages that a hollow multi-channel plate type structure is formed at a time, strong acid, strong alkali and other strong-corrosion heat transfer media are resisted, the mechanical strength is high, the pressure-bearing performance of the heat transfer media is good, the heat exchange area is large, the heat exchange temperature difference is small, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the technical field of solar heat utilization, in particular to a plastic inflation forming heat exchange plate and a manufacturing process. Background technique [0002] Industrial heat exchangers are used for heat exchange between two heat transfer media, which are divided into plate type, tube-fin type and shell-and-tube type, and generally adopt metal structure. [0003] For strong corrosive heat transfer media, because metal materials generally have poor corrosion resistance, the selection of metal materials with strong corrosion resistance is expensive and has a certain service life; resulting in high manufacturing costs and short service life of industrial strong corrosive heat exchange equipment. defect. [0004] The plastic material has strong corrosion resistance, certain mechanical strength and certain temperature resistance, but its thermal conductivity is poor. To meet a certain mechanical strength, a certain manu...

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Problems solved by technology

[0003] For strong corrosive heat transfer media, because metal materials generally have poor corrosion resistance, the selection of metal materials with strong corrosion resistance is expensive and has a certain service life; resulting in high manufacturing costs and short service life of industrial strong corrosive heat exchange equipment. defect

[0004] Plastic materials have strong corrosion resistance, certain mechanical strength and certain temperature resistance, but their thermal conductivity is poor, and a certain manufacturing thickness is required to meet certain mechanical strength, and the forming process of complex heat exchange structures is difficult.

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