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Acetylene preheating and humidifying method

An acetylene and preheater technology, applied in chemical instruments and methods, hydrocarbons, organic chemistry, etc., can solve problems such as acetylene decomposition and explosion, and achieve the effects of increasing humidity, facilitating connection and improving effects

Active Publication Date: 2019-03-01
重庆化医长寿化工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide a method for preheating and humidifying acetylene to solve the problem that acetylene is easy to decompose at high temperature and cause explosion when the Venturi steam preheater in the prior art is abnormally shut down

Method used

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  • Acetylene preheating and humidifying method
  • Acetylene preheating and humidifying method
  • Acetylene preheating and humidifying method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The present invention uses the annular steam preheater 2 to preheat and humidify the acetylene gas.

[0037] Such as figure 1 , figure 2 As shown, the annular steam preheater 2 includes a closed steam annular pipe 21 and a plurality of branch pipes 22 communicated with the steam annular pipe 21, and the branch pipes 22 are evenly distributed between the steam annular pipe 21 and the acetylene inlet pipe 1, and this implementation In the example, there are three branch pipes 22, and the branch pipes 22 are curved; the steam inlet 211 is provided on the upper right side of the steam annular pipe 21.

[0038] A method for preheating and humidifying acetylene, comprising the following steps:

[0039] Step 1, set the steam annular pipe 21 of the annular steam preheater 2 on the acetylene intake pipe 1, then connect the bottoms of the three branch pipes 22 to the acetylene intake pipe 1, and arrange the three branch pipes 22 evenly on the acetylene intake pipe 1; and on t...

Embodiment 2

[0044] On the basis of embodiment 1, embodiment 2 is as image 3 , Figure 4 , Figure 5As shown, a pressing piece 4 is fixed on the upper part of the branch pipe 22 in the acetylene inlet pipe 1 . The right end of pressing sheet 4 is fixed on the right part of acetylene inlet pipe 1 inwall, and the left end of pressing sheet 4 sticks with the left part of acetylene inlet pipe 1 inner wall, and pressing sheet 4 is memory metal sheet, and the thickness of pressing sheet 4 is 3mm. The side wall of the acetylene inlet pipe 1 is slidably connected with a push rod 5 that runs through the acetylene inlet pipe 1. The push rod 5 is located between the pressing plate 4 and the steam ring pipe 21. The right end of the push rod 5 is fixedly connected with the switch of the steam control valve. The left end of 5 fixes the limit block 51, is provided with spring between the limit block 51 and the acetylene intake pipe 1 right part inwall, and the spring is welded between the limit block ...

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Abstract

The invention belongs to the technical field of methods for obtaining a polymer compound by carbon unsaturated bond reaction, and discloses an acetylene preheating and humidifying method, which includes the following steps: step I. mounting an annular steam preheating device comprising a steam annular pipe and a branch pipe on an acetylene inlet pipe, wherein the steam annular pipe is positioned at the periphery of the acetylene inlet pipe, and two ends of the branch pipe are respectively communicated with the steam annular pipe and the acetylene inlet pipe; step II. introducing water vapor into the steam annular pipe to enable the water vapor to enter into the acetylene inlet pipe through the branch pipe; step III. introducing acetylene gas into the acetylene inlet pipe to mix the acetylene with the water vapor, preheating and humidifying, and then entering into an acetylene dimerization reaction tower. The invention solves the problem that equipment is easy to explode when the conventional steam preheating device stops abnormally in the prior art.

Description

technical field [0001] The invention belongs to the field of methods for obtaining polymer compounds by reacting carbon unsaturated bonds, and in particular relates to an acetylene preheating and humidifying method. Background technique [0002] The vinyl acetylene produced by the acetylene dimerization reaction can be used in the production of various chemical products of neoprene rubber, so many chemical factories have invested a lot of manpower and material resources in the research of the acetylene dimerization reaction. The dimerization reaction of acetylene in the production process of chloroprene rubber is to clean the acetylene, compress the water through the compressor, and enter the reaction tower after being preheated by the Venturi preheater, and carry out the dimerization reaction under the action of the catalyst. . Among them, the preheating and humidification of acetylene is a very important part. Since acetylene gas is a flammable and explosive gas, when it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C11/24C07C7/20
CPCC07C7/20C07C11/24
Inventor 黄自力徐秋平陈耘文国礼向伟邹泽平
Owner 重庆化医长寿化工集团有限公司
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