CN212549470U - Device for preventing corrosion of blocking media in chloroethylene converter in series-parallel connection - Google Patents

Abstract

The utility model provides a device for it is anticorrosive that separation medium is from each other in chloroethylene converter. The device is characterized in that a tube plate and a partition plate are arranged in a converter barrel, gaps are reserved among the upper tube plate, the lower tube plate and the partition plate of the converter barrel to form an isolation cavity, a heat exchange tube penetrates through the partition plate, the isolation cavity and the tube plate, the isolation cavity is communicated with a material inlet, and isolation materials are respectively injected into the isolation cavity through material injection ports in the upper portion and the lower portion of the converter barrel and fill the isolation cavity. The device prevents that the medium from going on each other through the clearance and serializing each other and causing the corruption to tube sheet and heat exchange tube head through filling insulating material in isolated intracavity, and the device can reduction in production cost, reduces the energy consumption, has important meaning to the comprehensive competitiveness of promotion enterprise.

Description

Device for preventing corrosion of blocking media in chloroethylene converter in series-parallel connection

Technical Field

The utility model relates to petrochemical equipment field, in particular to a separate the anticorrosive device of medium cluster each other in being used for the chloroethylene converter.

Background

At present, most of domestic vinyl chloride production enterprises generally adopt a tubular catalytic reactor as a vinyl chloride converter in a vinyl chloride production process, and have been used for many years in a process for producing PVC by using a calcium carbide method in the production process. In the chloroethylene converter, because a gap exists between the tube plate and the heat exchange tube during installation, media can be mutually connected along the gap to corrode the tube plate and the heat exchange tube, and the problem of corrosion and leakage of the tube head caused by mutual connection of the media is always a negative factor influencing PVC production, which not only influences the service life of equipment, but also causes the reduction of product quality and yield. Hydrochloric acid is easily formed in the chloroethylene converter due to the fact that media are connected in series, so that the pipe head of the heat exchanger is frequently corroded and leaked until equipment is scrapped, normal production is seriously affected by the hydrochloric acid, consumption of a catalyst is increased, indexes after reaction of chloroethylene exceed standards specified by production, production cost is increased, labor intensity of workers is increased due to frequent overhauling, the service life of the equipment is affected, the production environment is deteriorated, and the like.

Disclosure of Invention

An object of the utility model is to provide an utilize and form isolated chamber at tube sheet and baffle to through filling insulating material at isolated intracavity, prevent to cause the mutual cluster of separating medium and anticorrosive device of being used for in the chloroethylene converter to heat transfer pipe tube head corruption because of the medium. The utility model provides a technical problem solve in the converter because of the clearance that exists between tube sheet and the heat exchange tube, make the medium each other cluster the corruption problem that goes on tube sheet and heat exchange tube head through the clearance.

In order to achieve the above purpose, the technical scheme of the utility model is that:

an apparatus for preventing corrosion of vinyl chloride converters by means of barrier media connected in series and in parallel, comprising: the device comprises a tube plate, a material filling opening, an isolation cavity, a partition plate, a converter barrel, a heat exchange tube and an isolation material, wherein the tube plate and the partition plate are arranged in the converter barrel, gaps are reserved among the upper tube plate, the lower tube plate and the partition plate of the converter barrel to form the isolation cavity, the heat exchange tube penetrates through the partition plate, the isolation cavity and the tube plate, and the isolation cavity is communicated with a material inlet.

The insulating material in the device is respectively injected into the insulating cavity through the material injection ports at the upper part and the lower part of the converter cylinder body, and the insulating cavity is filled.

The utility model discloses an actively the effect does:

1. the device forms an isolation cavity between the tube plate and the partition plate, and prevents the corrosion to the tube head of the tube plate and the heat exchange tube caused by the mutual connection of media through a gap formed when the tube plate and the heat exchange tube are installed by filling an isolation material in the isolation cavity;

2. the device can prolong the service life of each part in the equipment and reduce the waste of various resources;

3. the device can reduce production cost, reduces energy consumption, and has important meaning to promoting the comprehensive competitiveness of enterprise.

Drawings

FIG. 1 is a schematic structural diagram of an anticorrosive device in which insulating media in a vinyl chloride converter are connected in series and in parallel;

FIG. 2 is a schematic view showing a partial structure of an anticorrosive device in which the barrier media are connected in series and in parallel in the vinyl chloride converter.

Wherein in the figure: 1. tube sheet, 2, material filling opening, 3, isolation chamber, 4, baffle, 5, converter barrel, 6, heat exchange tube, 7 isolation material.

Detailed Description

The technical solution of the present invention will be further described clearly and completely with reference to the accompanying drawings.

Referring to the attached figures 1-2, the device is provided with a tube plate 1 and a partition plate 4 in a converter cylinder 5, gaps are left between the tube plate 1 and the partition plate 4 at the upper part and the lower part of the converter cylinder 5 to form an isolation cavity 3, a heat exchange tube 6 penetrates through the partition plate 4, the isolation cavity 3 and the tube plate 1, and the isolation cavity 3 is communicated with a material inlet 2.

The insulating material 7 in the device is respectively injected into the insulating cavity 3 through the material injection ports 2 at the upper part and the lower part of the converter cylinder 5, and the insulating cavity 3 is filled.

During the use, with baffle 4 and converter barrel 5 welded fastening, remain certain clearance and form isolation chamber 3 between tube sheet 1 and baffle 4, wait that heat exchange tube 6 and tube sheet 1 welding accomplish the back, pour into isolation material 7 into and be full of isolation chamber 3 from material filling opening 2, will fill up because of the clearance that forms between tube sheet 1 and heat exchange tube 6 during the installation to the separation medium carries out the corruption that each other forms converter barrel 5 inner part through the clearance.

Claims (2)

1. An apparatus for preventing corrosion of vinyl chloride converters by means of barrier media connected in series and in parallel, comprising: tube sheet (1), material filling opening (2), isolated chamber (3), baffle (4), converter barrel (5), heat exchange tube (6) and insulating material (7), its characterized in that: the device is characterized in that a tube plate (1) and a partition plate (4) are arranged in a converter barrel (5), gaps are reserved among the upper tube plate (1), the lower tube plate (1) and the partition plate (4) of the converter barrel (5) to form an isolation cavity (3), a heat exchange tube (6) penetrates through the partition plate (4), the isolation cavity (3) and the tube plate (1), and the isolation cavity (3) is communicated with a material injection port (2).

2. The apparatus for preventing corrosion of the barrier media in the vinyl chloride converter according to claim 1, wherein: the insulation material (7) in the device is respectively injected into the insulation cavity (3) through the material injection ports (2) at the upper part and the lower part of the converter cylinder body (5), and the insulation cavity (3) is filled.

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