Filter element liquid seal pipe of hydrogen chloride gas dehydration demister

Abstract

The utility model discloses a hydrogen chloride gas dehydration demister filter element liquid seal pipe, which relates to the field of organic chemical process, and comprises a liquid seal pipe and a perforated plug, the liquid seal pipe is U-shaped, two ends of the liquid seal pipe are not sealed, the liquid seal pipe is divided into a long pipe end and a short pipe end, the long pipe end of the liquid seal pipe is arranged at the lower end of a demisting element, and the perforated plug is arranged at the short pipe end of the liquid seal pipe. The liquid seal cup has the characteristics of convenience in liquid level adding in the liquid seal pipe and high reliability, and is used for solving the problems that when a traditional liquid seal cup is used for liquid seal, a filter element is easily soaked in water due to too high liquid level adding due to improper operation, the filter element is directly put into use without supplementing liquid seal water, and the service time of the filter element is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of organic chemical technology, concretely relates to a hydrogen chloride gas dewatering demister filter core liquid seal pipe. BACKGROUND

[0002] In the current production process of the calcium carbide method PVC resin, the used process is that acetylene and hydrogen chloride are reacted under the action of mercuric chloride catalyst to generate chloroethylene monomer.

[0003] The raw material used in the production process is synthetic hydrogen chloride, which is easy to become hydrochloric acid when meeting water, and is easy to corrode the carbon steel material equipment and facilities in the subsequent system, so the hydrogen chloride needs to be dewatered before the addition reaction, and the dewatering is usually divided into three processes, namely, mixer mixing dewatering, graphite cooler refrigeration dewatering and demister filter dewatering.

[0004] When using the traditional liquid seal cup for liquid sealing, liquid seal water needs to be added at the bottom before each use of the demister, which increases the labor cost, and if the liquid level is too high due to improper operation, the filter core is easy to be soaked, which affects the service life of the filter core, and the liquid seal water often appears "empty" under the condition of personnel operation error, and the demister is directly used without supplementing the liquid seal water after maintenance, which causes the raw material gas to flow out from the liquid seal pipe without passing through the surface of the filter core, and affects the dewatering effect of the demister. UTILITY MODEL CONTENTS

[0005] In view of the above problems, the utility model provides a hydrogen chloride gas dewatering demister filter core liquid seal pipe, which has the characteristics of convenient liquid seal pipe liquid level addition and high reliability, and is used to solve the problem that the filter core is easy to be soaked due to improper operation when the traditional liquid seal cup is used for liquid sealing, and the service life of the filter core is affected by directly using the demister without supplementing the liquid seal water.

[0006] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0007] A hydrogen chloride gas dewatering demister filter core liquid seal pipe, characterized by comprising a liquid seal pipe and a perforated plug, the liquid seal pipe is U-shaped, both ends of the liquid seal pipe are not sealed, and are divided into a long pipe end and a short pipe end, the long pipe end of the liquid seal pipe is installed at the lower end of a demisting element, and the short pipe end of the liquid seal pipe is provided with the perforated plug.

[0008] It also comprises a demister, a demisting element, a material gas inlet, a material gas outlet and a condensed acid discharge port, the demister is fixedly installed inside the demisting element, the demisting element is provided with the liquid seal pipe at the lower end, the top of the demister is provided with the material gas outlet, the side of the demister is provided with the material gas inlet, and the bottom of the demister is provided with the condensed acid discharge port.

[0009] The utility model has the advantages of:

[0010] (1) When the utility model is used, the opening plug is set at the short end of the liquid sealing pipe, and water is added to the short end of the liquid sealing pipe. The water adding standard is that water flows out of the 7 holes of the opening plug to avoid the situation where the liquid level is too high due to improper operation, which may cause the filter element to be soaked in water and affect the service life of the filter element.

[0011] (2) The utility model uses a liquid seal tube with a U-shaped bend. The condensed acid inside the demister element flows to the liquid seal tube by gravity, and then flows to the condensed acid outlet of the demister through the opening plug at the short end of the liquid seal tube, thus realizing the whole process of removing water from the material gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a schematic diagram of the opening plug of the utility model.

[0014] Reference numerals: demister 1, demister element 2, liquid seal tube 3, material gas inlet 4, material gas outlet 5, condensed acid outlet 6, opening plug 7. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] like Figure 1 、 Figure 2 As shown, a liquid sealing tube for a filter element of a hydrogen chloride gas dehydration demister is characterized in that it includes a liquid sealing tube 3 and an opening plug 7. The liquid sealing tube 3 is U-shaped, and both ends of the liquid sealing tube 3 are not sealed, and are divided into a long tube end and a short tube end. The long tube end of the liquid sealing tube 3 is installed at the lower end of the demister element 2, and the opening plug 7 is provided on the short tube end of the liquid sealing tube 3.

[0017] like Figure 1 As shown, it also includes a demister 1, a demister element 2, a material gas inlet 4, a material gas outlet 5, and a condensed acid discharge port 6. The demister 1 is fixedly installed inside the demister element 2, and a liquid seal tube 3 is installed at the lower end of the demister element 2. The top of the demister 1 is provided with a material gas outlet 5, the side of the demister 1 is provided with a material gas inlet 4, and the bottom of the demister 1 is provided with a condensed acid discharge port 6.

[0018] The utility model discloses when using, the demisting element 2 in the demister 1 inside, whole installation is in the demister 1 upper flower board, the opening plug 7 is set in the liquid seal pipe 3 short pipe end, the opening plug 7 is opened the diameter is 10mm, manually adds water to the liquid seal pipe 3 short pipe end, and the water adding standard is that the opening plug 7 hole has water flow to be all right, and the liquid seal pipe 3 long pipe end is rotated and installed to the demisting element 2 bottom, opens the valve on the demister 1 import pipeline 4, opens the valve on the demister 1 export pipeline 5, and material gas flows from the demister 1 export pipeline 5 after passing through the demisting element 2, and the condensation acid in the demisting element 2 interior flows to the liquid seal pipe 3 by gravity, and the liquid seal pipe 3 flows to the demister condensation acid acid discharge port 6 through the opening plug 7, realizes material gas to remove water whole process.

[0019] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical feature. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A liquid-sealed filter element for a hydrogen chloride gas dehydration demister, characterized by: The invention comprises a liquid sealing tube (3) and an opening plug (7), wherein the liquid sealing tube (3) is U-shaped, and both ends of the liquid sealing tube (3) are not sealed and are divided into a long tube end and a short tube end. The long tube end of the liquid sealing tube (3) is installed at the lower end of the demisting element (2), and the opening plug (7) is provided on the short tube end of the liquid sealing tube (3).

2. The hydrogen chloride gas dehydration demister filter element liquid seal tube according to claim 1, characterized in that: The invention also includes a demister (1), a demister element (2), a material gas inlet (4), a material gas outlet (5), and a condensed acid outlet (6). The demister (1) is fixedly installed inside the demister element (2), a liquid seal pipe (3) is installed at the lower end of the demister element (2), a material gas outlet (5) is provided at the top of the demister (1), a material gas inlet (4) is provided at the side of the demister (1), and a condensed acid outlet (6) is provided at the bottom of the demister (1).

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