CN111514488B

CN111514488B - Explosion-proof system of fireworks and crackers production factory building

Info

Publication number: CN111514488B
Application number: CN202010379528.XA
Authority: CN
Inventors: 李孝斌
Original assignee: Individual
Current assignee: Liuyang Gejia Jinsheng Fireworks Manufacturing Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-04-13
Anticipated expiration: 2040-05-08
Also published as: CN111514488A

Abstract

The invention discloses an explosion-proof system of a firework and firecracker production workshop.A water outlet of a sprinkler in the workshop is sealed by a film, and a protruding area for adhering ignition powder is arranged at the center of the film; the channel A of the sprinkler three-way pipeline is connected with a water inlet of the sprinkler; the channel B provided with the check valve is connected with a pressure water source through a water supply pipe and a valve; a piston body is nested in a cylindrical hole in the center of the bottom of the pressure-collecting round opening on the inner wall of each workshop; the outer end opening of the wall of the cylindrical hole is communicated with one end of a pressure conduction pipe, and the other end of the pressure conduction pipe is communicated with a channel C of a three-way pipeline of a sprinkler of an adjacent factory building; the pressure conduction pipe and the cylindrical hole are filled with water. The explosion accident can be effectively prevented from spreading to other plants; when a combustion accident or accident is happened in a workshop for producing fireworks and crackers, a powerful means for stopping and interrupting the development of the accident is provided; explosion accidents in the factory building are effectively prevented, and the loss of the factory building caused by the accidents is reduced; the escape opportunity is increased for the staff.

Description

Explosion-proof system of fireworks and crackers production factory building

Technical Field

The invention relates to an explosion-proof system of a firework and firecracker production workshop.

Background

According to GB50161-2009 design safety regulations for fireworks and crackers factory, there are burning danger, explosion danger and jetting danger in fireworks and crackers production factory. In practice, even if firework factory buildings such as packaging and assembly with low danger level are used, the serial explosion often occurs, which shows that in the design of the existing factory buildings, the accident factory buildings have large influence on surrounding buildings such as adjacent factory buildings, and the accident spreading caused by explosion and injection is difficult to prevent; meanwhile, the existing plant design lacks the self protection of the plant in case of accidents, and has no protection means or measures for preventing the upgrading of the combustion accident to the explosion injection accident.

Disclosure of Invention

The invention aims to solve the technical problem of providing an explosion-proof system of a firework and firecracker production workshop, which effectively prevents an accident from spreading from an accident workshop to an adjacent workshop and is beneficial to preventing the combustion accident in the accident workshop from being upgraded to an explosion accident. In order to solve the technical problems, the invention adopts the technical scheme that the explosion-proof system of the firework and firecracker production plant comprises a plurality of plant bodies and is characterized in that a plurality of disc-shaped sprinklers are arranged in the plant; the latex or plastic film seals the water outlet of the sprinkler, the periphery of the film is fixed on the lantern ring, and the lantern ring is in threaded connection with the water outlet of the sprinkler;

the sprinkler is provided with a three-way pipeline: the channel A of the three-way pipeline is connected with a water inlet of the sprinkler;

the channel B of the three-way pipeline is connected with a pressure water source through a water supply pipe and a valve, and the channel B is provided with a check valve; when a burning accident occurs, the film is burnt out, and pressure water is released into the accident factory building to extinguish fire.

Two pressure conduction pipes for conducting pressure in one direction are arranged between two adjacent plants, at least one arc-shaped concave pressure-collecting round opening is arranged on the inner wall of each plant, a cylindrical hole is arranged at the center of the bottom of each pressure-collecting round opening, and a piston body is nested in each cylindrical hole; the cylindrical hole penetrates through an outer port of a plant wall and is communicated with one end of a pressure conduction pipe, and the other end of the pressure conduction pipe is communicated with a channel C of a three-way pipeline of a sprinkler of an adjacent plant; the pressure conduction pipe and the cylindrical hole are filled with water. When the explosion accident takes place, the pressure circle mouth is collected to the collection and is exploded the shock wave and promote the piston body for the water pressure increase of pressure conduction pipe rises and breaks the sprinkler film of the adjacent factory building that is linked together with it, to release pressure water in the adjacent factory building, avoids the accident to stretch to expand to adjacent factory building by the accident factory building.

Preferably, the valve is an automatic valve which is arranged on a water pipe outside the factory building; a temperature sensor is arranged in the plant; the automatic valve sets the opening of the automatic valve according to the signal of the temperature sensor. When a fire disaster happens, the automatic valve is opened to the full-open position, the pressure of the water outlet is increased, and the film is directly broken by expansion. Preferably, a cutter is fixedly arranged on the lantern ring, and the edge of the cutter faces to and is close to the thin film. The knife edge faces and is close to the film, the film can not be contacted in normal times, when the pressure of the water outlet is increased, the film is contacted with the knife edge when being pressed and protruded, the film is scratched by the knife edge, and the film is rapidly broken.

Preferably, a convex area is arranged at the center of the film.

Preferably, a sprinkler is arranged above the operating station corresponding to the factory building; the water source is located closest to the source of the hazard.

Preferably, the diameter of the disc-shaped sprinkler is 0.5 to 1.5 m.

Preferably, the film of the sprinkler is internally provided with normally open nozzles facing different angles, and the nozzles are communicated with the water inlet.

The invention has the advantages that the explosion accident can be effectively prevented from spreading to other plants; when a combustion accident or accident is happened in a workshop for producing fireworks and crackers, a powerful means for stopping and interrupting the development of the accident is provided; explosion accidents in the factory building are effectively prevented, and the loss of the factory building caused by the accidents is reduced; the escape opportunity is increased for the staff.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Drawings

FIG. 1 is a schematic diagram of a distribution principle of a plant;

FIG. 2 is a schematic view of the internal structure of the plant;

FIG. 3 is a schematic view of the sprinkler;

fig. 4 is a schematic structural view of the pressure-collecting round port (the section a-a shown in fig. 2).

Detailed Description

Referring to the attached drawings, the anti-explosion system of the firework and firecracker production factory building comprises a factory area formed by three adjacent firework and firecracker production factory buildings, namely a left factory building 31, a middle factory building 32 and a right factory building 33. The pressure water pipe 1 supplies constant pressure water to three plants through three branch pipes 4 and valves 2 thereof.

Two pressure conduction pipes for conducting pressure in one direction are arranged between two adjacent plants. As shown by the arrows in fig. 1 in this example, the pressure conduction pipe 6 is a pipe for conducting pressure from the middle plant 32 to the left plant 31 and the right plant 33; the pressure transmission pipe 5 is a pipe for transmitting pressure from the left and

right plant buildings

31 and 33 to the middle plant building 32.

Three disc-shaped sprinklers 7 are arranged in each factory building (the structure of the factory building is illustrated by taking a middle factory building 32 as an example in fig. 2); the three sprinklers 7 are identical in structure but different in installation position, one is located at the top, the other two are located on the walls on two sides, wherein the top sprinkler is located above the plant operation station and is correspondingly prepared for a water source capable of being rapidly released.

The sprinkler 7 is a disk with a diameter of 0.5 to 1.5 m; the latex or plastic film 706 seals the water outlet 703 of the sprinkler 7 to form a vulnerable and fusible seal: the periphery of the membrane 706 is fixed on a collar 705, and the collar 705 is connected with the water outlet 703 through threads 704 to form a convenient and reliable membrane fixing mode. The material and/or thickness of the film 706 may be selected as desired, based on the criteria that the film will not break when subjected to water pressure in a normal state (non-accident state), but will break relatively quickly when pressurized. Normally open nozzles oriented at different angles may be provided in the membrane 706 of the sprinkler 7, the nozzles communicating with the water inlet 11. Under normal conditions, the water from the nozzle is collected in the disc-shaped inner cavity of the sprinkler and is sealed by the film 706; when an accident happens, the film 706 is damaged, and the nozzles spray water to various directions in the plant to extinguish fire and reduce temperature, so that the spraying strength and range of water can be improved.

A convex region 701 is arranged at the center of the film 706; the reliability, the sensitivity and the reaction speed of the film 701 flame-sensing fusing damage reaction are effectively improved when a fire disaster happens.

The sprinkler 7 is provided with a three-way pipeline: the channel A of the three-way pipeline is connected with the water inlet 11 of the sprinkler 7. The channel B of the three-way pipeline is connected with the pressure water pipe 1 through a water supply pipe 10, a branch pipe 4 and a valve 2 thereof in sequence. And the channel B is provided with a check valve 8 to avoid the reverse flow of water flow when the pressure changes.

An arc-shaped concave pressure-collecting round opening 12 is arranged on the inner wall of the factory building, a cylindrical hole 14 is formed in the center of the bottom of the pressure-collecting round opening 12, and a piston body 13 is nested in the cylindrical hole 14; the outer port of the cylindrical hole 14 penetrating through the wall of the factory building is communicated with one end of the pressure conduction pipe 6 through a connecting piece 15, and the other end of the pressure conduction pipe 6 is communicated with a channel C of a three-way pipeline of a sprinkler of the adjacent factory building. The pressure conduction pipe 6 and the cylindrical hole 14 are filled with water. In case of an explosion accident in the middle workshop 32, the pressure-collecting round port 12 collects and induces the energy of the explosion shock wave, an axial driving force is formed in the center of the bottom, the piston body 13 is pushed to move in the cylindrical hole 14, a large instantaneous water pressure is applied to the pressure conduction pipe 6, the instantaneous water pressure is conducted to the water sprinklers of the left workshop 31 and the right workshop 33 through the pressure conduction pipe 6, the films of the left workshop 31 and the right workshop 33 are directly broken through the instantaneous water pressure, a large amount of water is released for humidifying and cooling the

workshops

31 and 33, and the accident spreading to the

adjacent workshops

31 and 33 caused by the explosion burst of the workshop 32 is effectively avoided.

Similarly, when the left factory building 31 or the right factory building 33 is in an explosion accident, a pressure-collecting round opening, a piston body and the like in the accident factory building also apply a large instantaneous water pressure to the pressure conduction pipe 5, the instantaneous water pressure is conducted to the three sprinklers 7 of the middle factory building 32 sequentially through the pressure conduction pipe 5 and the conduction branch pipe 9(C channel), the instantaneous water pressure is utilized to directly expand and break the thin film 701, a large amount of water is released for humidifying and cooling the middle factory building 32, and the explosion spray of the

factory buildings

31 and 33 is effectively prevented from causing the accident to spread to the adjacent middle factory building 32.

In this example, the valve 2 is an automatic valve arranged outside the factory building; a temperature sensor (not shown in the figure) is arranged in the plant; the valve 2 is set to an opening degree according to a signal of the temperature sensor. When a combustion accident occurs, the valve 2 is automatically opened to the full-open position according to the signal of the temperature sensor, the pressure at the water outlet 703 is increased, and the material and/or thickness of the corresponding film 706 is set according to the pressure, so that the purpose of directly expanding and breaking the film 706 by using the water pressure is achieved. In order to further ensure the film 706 to break, a cutter 702 is fixedly arranged on the collar 705, the knife edge of the cutter 702 faces to and is close to the film 706, the film 706 is not damaged in a normal contact mode, when the pressure at the water outlet 703 is increased, the film 706 is in contact with the knife edge when being pressed and protruded, and the film 706 is scratched by the knife edge, so that the film 706 is broken rapidly. When a combustion accident or accident is happened in the workshop for producing fireworks and crackers, a great deal of water is released for extinguishing fire and reducing temperature. Therefore, a powerful means for stopping and interrupting the accident development is provided; the explosion accident in the accident factory building is effectively prevented; or reduce the loss in the accident plant; the escape opportunity is increased for the staff.

The above-mentioned implementation is only for clearly illustrating the technical solutions of the present invention, and is not to be construed as limiting the present invention in any way. The present invention has many known alternatives and modifications in the art, which fall within the scope of the present invention without departing from the spirit of the present invention.

Claims

1. An explosion-proof system of a firework and firecracker production workshop comprises a plurality of workshop bodies and is characterized in that a plurality of disc-shaped sprinklers are arranged in the workshop; the latex or plastic film seals the water outlet of the sprinkler; the periphery of the film is fixed on a lantern ring, and the lantern ring is in threaded connection with a water outlet of the sprinkler;

the sprinkler is provided with a three-way pipeline: the channel A of the three-way pipeline is connected with a water inlet of the sprinkler; the channel B of the three-way pipeline is connected with a pressure water source through a water supply pipe and a valve, and the channel B is provided with a check valve; two pressure conduction pipes for conducting pressure in one direction are arranged between two adjacent plants, at least one arc-shaped concave pressure-collecting round opening is arranged on the inner wall of each plant, a cylindrical hole is arranged at the center of the bottom of each pressure-collecting round opening, and a piston body is nested in each cylindrical hole; the cylindrical hole penetrates through an outer port of a plant wall and is communicated with one end of a pressure conduction pipe, and the other end of the pressure conduction pipe is communicated with a channel C of a three-way pipeline of a sprinkler of an adjacent plant; the pressure conduction pipe and the cylindrical hole are filled with water, and when an explosion accident occurs, the pressure collection round port collects explosion shock waves to push the piston body, so that the water pressure of the pressure conduction pipe is increased, and a sprinkler film of an adjacent workshop communicated with the pressure conduction pipe is broken;

the valve is an automatic valve which is arranged on a water pipe outside the factory building; a temperature sensor is arranged in the plant; the automatic valve sets the opening of the automatic valve according to the signal of the temperature sensor; a sprinkler is arranged above the corresponding workshop operation station; normally open nozzles facing different angles are arranged in the film of the sprinkler, and the nozzles are communicated with the water inlet; when a combustion accident occurs, the valve is automatically opened to the full-open position according to the signal of the temperature sensor, the pressure at the water outlet is increased, the material and/or thickness of the corresponding film are/is set according to the pressure, and the film is directly broken by the water pressure.

2. An explosion-proof system for a factory building for manufacturing fireworks and crackers as claimed in claim 1, wherein a cutter is fixedly arranged on the lantern ring, and the edge of the cutter faces and is close to the film.

3. The explosion-proof system of a factory building for producing fireworks and crackers of claim 1 or 2, wherein the diameter of the disk-shaped water sprayer is 0.5-1.5 m.

4. An explosion-proof system of a factory building for producing fireworks and crackers as claimed in claim 1 or 2, wherein a convex area is arranged at the center of the film.