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A method and device for preventing secondary explosion after polymer polymerization explosion

A technology of secondary explosion and polymerization reaction, which is applied in instruments, computer control, simulators, etc., can solve the problems of secondary explosion, error while busy, increase secondary explosion, etc., and achieve good effect, strong practicability and easy realization. Effect

Active Publication Date: 2011-12-07
ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

When rescuers or operators realize that the feed valve must be closed, the monomer leaked at the accident site may have already reached the explosion limit, and a secondary explosion is likely to occur under conditions such as open flames and sparks
[0005] Moreover, after an explosion occurs, most of the personnel at the scene of the accident are in panic and their safety awareness is paralyzed. Even if they do not escape immediately, they may forget to close the feed valve or make mistakes in their busy schedule, which increases the possibility of a secondary explosion.
Once a secondary explosion occurs, due to the wide coverage of the leaked monomer and a large number of monomer storage tanks around, the entire production device and even the entire workshop will face a devastating disaster, threatening the safety of life and property of a larger area and more people

Method used

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  • A method and device for preventing secondary explosion after polymer polymerization explosion
  • A method and device for preventing secondary explosion after polymer polymerization explosion
  • A method and device for preventing secondary explosion after polymer polymerization explosion

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Embodiment Construction

[0041] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] Combine below figure 1 , 2, 3, detail the method and device for preventing secondary explosion of polymerization involved in the present invention. The method for preventing polymerization secondary explosion of the present invention comprises the following steps (see figure 1 ):

[0043] 1. Real-time detection of reaction pressure during the polymerization process: P 1 ,P 2 ,P 3 ,P 4 ......P n-1 with P n ;

[0044] Install a pressure transmitter at a position about 300mm from the top of the reactor, with an accuracy of 0.1Kpa, to obtain the pressure of the reaction process, and convert the measured pressure value into an electrical signal and transmit it to the computer;

[0045] 2. Calculate the pressure difference: P n -P n-1 : The pressure value P measured later by the computer nSubtract the pressure value P meas...

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Abstract

The invention relates to a method and device for preventing secondary explosion of polymerization. The present invention detects the reaction pressure in real time, calculates the reaction pressure difference, compares the difference with the set value, judges whether a primary explosion occurs, and takes measures to prevent secondary explosion if it has occurred. The device of the present invention comprises: a pressure measurement unit, a data processing unit, a judging unit and an execution unit, the data processing unit accepts the pressure data of the reaction process measured by the pressure detection unit, and subtracts the pressure value at the next time from the pressure value at the previous time; The judging unit compares the difference with the set value, and if the difference is greater than the set value, it is considered that a primary explosion has occurred; the execution unit takes measures to prevent the occurrence of a secondary explosion. The invention is easy to realize, good in effect and strong in practicability, and can be widely used in secondary explosion protection of various polymerization reactions.

Description

technical field [0001] The invention relates to a method and device for preventing re-explosion after polymer polymerization explosion. Specifically, it relates to a method and device for preventing secondary explosion of polymerization by detecting reaction pressure. Background technique [0002] Polymerization is the polymerization of monomers in high-pressure reactors with water or other solvents as carriers, and adding dispersants, initiators and other auxiliary agents. Since the polymer polymerization reaction is mostly a strong exothermic reaction, and most of the raw material monomers are flammable and explosive substances, if the control is not good, most monomers have the danger of explosion during the polymerization process. [0003] If an explosion occurs due to careless operation or other reasons during the polymerization process, high temperature and high pressure will be generated at the moment of the explosion, and a large number of toxic and harmful by-produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/048C08F2/00
Inventor 张金刚许鸿禧张劲松吴剑波张长香
Owner ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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