Method for manufacturing coating corrosion prevention heat exchanger

Abstract

The present invention discloses a fabrication method of a heat exchanger, in particular to a fabrication method of a heat exchanger with erosion-proof coats. The method includes the following steps: (1) parts composing the heat exchanger are processed according to the requirements of a design; (2) the processed parts are coated with erosion-proof coats; (3) after the erosion-proof coats are solidified, the quality of the erosion-proof coats is checked; (4) the parts are assembled, and a heat-exchanging pipe and pipe plates are fixed by applying a method of splicing. Compared with the prior art, because each part composing the heat exchanger first undergoes the erosion-proof process before assembly, the coating of the erosion-proof coat of each part of the heat exchanger produced by the method is thorough, the range of usable coats is wider, the phenomenon of deficiency does not exist, the erosion-proof effect is good, the examination of the erosion-proof quality of the coats is easy, the service life of equipment is long, and the cost of operation is low.

Description

technical field [0001] The invention relates to a manufacturing method of a heat exchanger, in particular to a manufacturing method of a coated anti-corrosion heat exchanger. Background technique [0002] Heat exchangers are widely used in industrial production, especially in petroleum and chemical industries. The existing heat exchanger is composed of a shell, tube plates located at both ends of the shell, a head, heat exchange tubes located in the shell, baffles and baffle positioning parts. At present, the processing method of the coating anti-corrosion heat exchanger is to process and assemble the above-mentioned parts first, and then coat the anti-corrosion layer. In this way, the range of coatings is limited, and it is difficult to apply anti-corrosion coatings with high viscosity in place, let alone in the gaps. Coating, the coating quality of the tube wall coating in the middle part of the heat exchange tube bundle cannot be detected, which eventually leads to poor ...

AI Technical Summary

Problems solved by technology

At present, the processing method of the coating anti-corrosion heat exchanger is to process and assemble the above-mentioned parts first, and then coat the anti-corrosion layer. In this way, the range of coatings is limited, and it is difficult to apply anti-corrosion coatings with high viscosity in place, let alone in the gaps. Coating, the coating quality of the tube wall coating in the middle part of the heat exchange tube bundle cannot be detected, which ultimately results in poor anti-corrosion effect of the heat exchanger, short service life and high operating costs