CN-117019035-B - Chemical kettle explosion emergency protection device and protection method thereof

CN117019035BCN 117019035 BCN117019035 BCN 117019035BCN-117019035-B

Abstract

The invention discloses an emergency protection device for explosion of a chemical kettle, which comprises an inner explosion-proof framework mechanism and an outer fireproof energy-reducing cover mechanism arranged on the outer side of the inner explosion-proof framework mechanism, wherein the inner explosion-proof framework mechanism comprises a plurality of arc-shaped explosion-proof plates, the top of each arc-shaped explosion-proof plate is hinged with an upper top ring, the mechanism further comprises a plurality of outer baffle ring frames arranged on the outer side of each arc-shaped explosion-proof plate, the outer baffle ring frames are fixedly assembled on the bottoms of the arc-shaped explosion-proof plates through a plurality of long pin screws, the mechanism further comprises a plurality of first pushing-down cylinders, the first pushing-down cylinders are controlled through a smoke alarm system in a workshop, the outer fireproof energy-reducing cover mechanism comprises a fireproof energy-reducing cover, the top of the fireproof energy-reducing cover is assembled and connected with a second pushing-down cylinder, the second pushing-down cylinders are controlled through the smoke alarm system in the workshop, and energy-reducing components are arranged on the fireproof energy-reducing cover. The invention also discloses a protection method of the emergency protection device. By the mode, explosion and combustion expansion are avoided in the first time after the reaction kettle explodes and burns.

Inventors

ZHANG XIAOBO
ZHU JINGZHONG
GUO CHENG

Assignees

安徽力天环保科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20230808

Claims (7)

1. The emergency protection device for the explosion of the chemical kettle is characterized by comprising an inner explosion-proof framework mechanism and an outer fireproof energy-reducing cover mechanism arranged on the outer side of the inner explosion-proof framework mechanism; The inner explosion-proof framework mechanism comprises a plurality of arc-shaped explosion-proof plates, and the top of each arc-shaped explosion-proof plate is hinged with an upper top ring; the inner explosion-proof framework mechanism further comprises a plurality of outer baffle ring frames arranged on the outer side of the arc-shaped explosion-proof plate, and the outer baffle ring frames are fixedly assembled at the bottom of the arc-shaped explosion-proof plate through a plurality of long pin screws; The inner explosion-proof framework mechanism further comprises a plurality of first pushing-down air cylinders, and the first pushing-down air cylinders are controlled by a smoke alarm system in a workshop; the outer fireproof energy-reducing cover mechanism comprises a fireproof energy-reducing cover, the top of the fireproof energy-reducing cover is assembled and connected with a second pushing-down cylinder, and the second pushing-down cylinder is controlled by a smoke alarm system in a workshop; the fireproof energy-reducing cover is provided with an energy-reducing component, and in the explosion process of the reaction kettle, the energy of high explosion is reduced to a low energy state through the energy-reducing component; the energy-reducing assembly comprises a plurality of energy-reducing springs fixedly connected to the fireproof energy-reducing cover; An outer mounting ring is fixedly connected between the outer ends of the energy reducing springs; The energy-reducing assembly further comprises a plurality of energy-reducing plates fixedly connected to the outer side wall of the fireproof energy-reducing cover; the energy reduction assembly further comprises a plurality of braking plates for braking the energy reduction plates; And a bottom annular seat is fixedly connected between the bottoms of the brake plates.
2. The chemical kettle explosion emergency protection device according to claim 1, wherein the first pushing-down cylinder and the second pushing-down cylinder are fixed through a triangular cylinder suspension; the cylinder barrel of the first push-down cylinder is fixedly assembled at the top of the triangular cylinder suspension; the triangular cylinder suspension is fixedly connected with a waist frame plate, and the cylinder barrel of the second pushing-down cylinder is fixedly assembled on the waist frame plate.
3. The emergency protection device for the explosion of the chemical kettle according to claim 1, wherein a piston rod of the first pushing-down cylinder is fixedly connected with a push rod, and the bottom of the push rod is detachably assembled on the outer baffle ring frame.
4. The emergency protection device for explosion of chemical kettle according to claim 3, wherein the bottom of the arc-shaped explosion-proof plate is integrally formed with a horizontal protruding part protruding outwards, the top of the horizontal protruding part is upwards fixedly connected with a long pin screw, and two outer separation baffle ring frames arranged at an upper-lower interval are assembled and connected between the long pin screw; the top of the long pin screw is fixedly connected with an outer baffle ring frame at the top position; The long pin screw is connected with the outer baffle ring frame at the bottom in a sliding way, and a pair of adjusting nuts positioned at two sides of the outer baffle ring frame are connected with the long pin screw in a threaded way.
5. The emergency protection device for explosion of chemical kettle according to claim 1, wherein the top of the arc-shaped explosion-proof plate is fixedly connected with a vertically arranged boss, and the boss is hinged on the upper top ring.
6. The emergency protection device for the explosion of the chemical kettle according to claim 1, wherein the outer side wall of the fireproof energy-reducing cover is fixedly connected with two layers of energy-reducing springs which are distributed up and down; The lower fastening screw is in threaded connection between the outer mounting rings.
7. The emergency protection device for explosion of chemical tank according to any one of claims 1 to 6, wherein the method for protecting by the emergency protection device for explosion of chemical tank comprises the following steps: (1) After the smoke concentration at the top of the reaction kettle reaches the alarm threshold value of the smoke alarm system, the first pushing-down cylinder and the second pushing-down cylinder controlled by the smoke alarm system immediately work, the inner explosion-proof framework mechanism and the outer fireproof energy-reducing cover mechanism are lowered to the inner explosion-proof framework mechanism to cover the outer side wall of the reaction kettle, and the outer fireproof energy-reducing cover mechanism covers the outer side of the inner explosion-proof framework mechanism; (2) After the reaction kettle explodes, the inner explosion-proof framework mechanism supports the kettle body from the outer side, the explosion kinetic energy generated by the explosion of the kettle body is reduced through the primary consumption of the inner explosion-proof framework mechanism, and fragments generated by the explosion are blocked through the primary separation of the inner explosion-proof framework mechanism; Fire generated by explosion combustion is blocked by the fireproof energy-reducing cover, and fragments generated by explosion are blocked finally by the fireproof energy-reducing cover; (3) After explosion, the fireproof energy-reducing cover reduces kinetic energy to be static through the energy-reducing component, and the fire generated by the explosion of the reaction kettle is blocked in all directions.

Description

Chemical kettle explosion emergency protection device and protection method thereof Technical Field The invention relates to the field of chemical kettle explosion emergency protection, in particular to a chemical kettle explosion emergency protection device and a protection method thereof. Background In the chemical production process, a large amount of reaction kettles for processing and preparing chemical reaction materials are required, and in particular, the reaction kettles are large in size and contain the reaction materials such as organic solvents. In the production process, the reaction kettle is often exploded in the production process due to misoperation such as insufficient removal of moisture in a solvent, overlarge pressure of the reaction kettle, overhigh reaction temperature and the like. The explosion energy generated by the explosion of a single kettle body is not particularly large, but in the explosion process, organic solvent is easy to catch fire, and the organic solvent in the fire state ignites the rest kettles of a workshop to cause chain explosion reaction, which is an important factor for causing the expansion of the explosion. In addition, once the reaction kettle explodes, the splashed metal fragments obtain very large kinetic energy under the clamping of explosion energy, when the splashed fragments strike a pipeline system in a workshop, such as a pipeline for conveying an organic solvent, the pipeline is broken, the organic solvent with certain hydraulic pressure is sprayed out of the pipeline, and then the organic solvent is rapidly ignited by fire generated by explosion, and the chain explosion reaction is initiated again. Based on this, at present, in order to monitor the operating condition of reation kettle in the workshop in real time, in case the urgent processing of explosion takes place, if will carry the pipeline of solvent and close fast, avoid chain explosion to produce, many through installing smoke alarm system in the workshop, in case reation kettle explodes, smoke alarm system reacts immediately, if control the pipeline valve (solenoid valve) of carrying the solvent and close, realize emergency treatment. For example, CN206466509U, a special fire-proof oil storage tank for petrochemical industry is disclosed, a smoke alarm is arranged on the right side, close to an oil inlet, above an oil storage tank shell body, a dry powder fire extinguisher is arranged on one side of the oil storage tank, a dry powder outlet of the fire extinguisher is just aligned with an oil outlet of the oil storage tank, the fire starts from the oil outlet when the oil storage tank fires generally, at the moment, fire can be controlled at a source only by opening the dry powder fire extinguisher, loss is reduced, and when the designed smoke alarm fires, the alarm detects smoke to give out an alarm. However, all the protection measures at present cannot be essentially protected to reduce the destructiveness caused by explosion and combustion. According to the technical scheme disclosed in the patent, once the oil storage tank catches fire, explosion is extremely easy to trigger, oil liquid splashes due to the explosion, the fire is dispersed, and effective treatment is difficult to achieve through a fire extinguishing mode. And once high-energy fragments generated by explosion of the explosion tank body strike the pipeline system, the oil delivery pipe is broken, and chain explosion and combustion reaction are initiated. Disclosure of Invention The invention aims to solve the technical problem of providing a chemical kettle explosion emergency protection device. The invention solves the technical problems through the following technical scheme: an emergency protection device for explosion of a chemical kettle comprises an inner explosion-proof framework mechanism and an outer fireproof energy-reducing cover mechanism arranged on the outer side of the inner explosion-proof framework mechanism. When explosion occurs, the inner explosion-proof framework mechanism and the outer fireproof energy-reducing cover mechanism are downwards placed on the outer side wall of the reaction kettle and cover the outer side of the inner explosion-proof framework mechanism; the fire generated by the explosion combustion is blocked by the fireproof energy-reducing cover, and the fragments generated by the explosion are finally blocked by the fireproof energy-reducing cover. The inner explosion-proof framework mechanism comprises a plurality of arc-shaped explosion-proof plates, an upper top ring is hinged to the tops of the arc-shaped explosion-proof plates, the inner explosion-proof framework mechanism further comprises a plurality of outer baffle ring frames arranged on the outer sides of the arc-shaped explosion-proof plates, the outer baffle ring frames are fixedly assembled at the bottoms of the arc-shaped explosion-proof plates through a plurality of long pin screws, and the inner explosion-proof fram