A liquid chlorine vaporizer

Abstract

The invention belongs to the technical field of chemical equipment, and particularly relates to a liquid chlorine vaporizer. The liquid chlorine vaporizer comprises a box body, a water inlet, a wateroutlet, a chlorine liquid inlet, a chlorine gas outlet and a vaporization pipeline, wherein the water inlet and the chlorine liquid inlet are arranged at the lower end of the box body; the water outlet and the chlorine gas outlet are arranged at the upper end of the box body; the vaporization pipeline is arranged inside the box body; an anti-corrosion pipeline is arranged outside the vaporizationpipeline; a pipe joint is arranged on the outer wall of the anti-corrosion pipeline; an isolation layer capable of freely sliding is arranged in an interlayer between the inner wall of the anti-corrosion pipeline and the outer wall of the vaporization pipeline; the section of the isolation layer is composed of a V-shaped folded plate unit; the V-shaped folded plate unit can freely expand in the horizontal direction. The liquid chlorine vaporizer can collect and isolate chlorine gas at leakage points of the vaporization pipeline and the plug the leakage points, and meanwhile, the isolation layer can apply a certain pressure to the outer wall of the vaporization pipeline to enhance the strength of the vaporization pipeline, so that the corrosion problem of the liquid chlorine vaporizer is solved.

Description

technical field [0001] The invention belongs to the technical field of chemical equipment, in particular to a liquid chlorine vaporizer. Background technique [0002] The liquid chlorine vaporizer is a key equipment in the chlor-alkali industry, and its function is to convert liquid chlorine gas into a gaseous state. Common types include shell and tube evaporators and coil evaporators. Most of the nozzles of the tube sheet are welded or expanded. Due to process defects and complex flow media, corrosion and stress cracks of the nozzles are often caused, resulting in leakage at the nozzles. [0003] There are three common types of corrosion in liquid chlorine vaporizers: crevice corrosion, pitting corrosion, and stress cracking corrosion. [0004] Among all kinds of corrosion, crevice corrosion is the most common. Crevice corrosion occurs in the form of cracks and occurs in the parts where the oxygen supply is insufficient, resulting in the destruction of the passivation fi...

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Problems solved by technology

[0009] In order to make up for the deficiencies of the existing equipment, the present invention provides a liquid chlorine vaporizer, which can effectively overcome the stress cracks and corrosion perforation caused by the corrosion of the nozzle of the existing liquid chlorine vaporizer when the existing liquid chlorine vaporizer is working. Corrosion and leakage problems, so as to solve the corrosion problem of liquid chlorine vaporizer, prolong the service life of equipment, and ensure the safe and continuous production of enterprises

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