A method and device for preventing secondary explosion after polymer polymerization explosion
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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
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
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
CN101673095BActive 📅 Publication Date: 2011-12-07ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD
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[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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