CN113018737A - Method for driving fire extinguishing agent by gas production type cylinder and fire extinguishing system with method - Google Patents
Method for driving fire extinguishing agent by gas production type cylinder and fire extinguishing system with method Download PDFInfo
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- CN113018737A CN113018737A CN202110478941.6A CN202110478941A CN113018737A CN 113018737 A CN113018737 A CN 113018737A CN 202110478941 A CN202110478941 A CN 202110478941A CN 113018737 A CN113018737 A CN 113018737A
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- fire extinguishing
- extinguishing agent
- cylinder
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
- A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
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- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a method for driving a fire extinguishing agent by a gas-producing cylinder and a fire extinguishing system with the method. When a fire disaster occurs, the gas generator on the cylinder body generates pressure gas to push the piston to move downwards, and the fire extinguishing agent is driven to explode the rupture disk at the bottom of the cylinder body and release the fire extinguishing agent. The invention adopts the closed fire extinguishing agent cylinder to store the fire extinguishing agent at normal pressure, the fire extinguishing agent cylinder does not belong to a special equipment high-pressure container, and the transportation, the installation, the use and the maintenance are very convenient; the invention adopts the closed fire extinguishing agent cylinder to store the fire extinguishing agent at normal pressure, the fire extinguishing agent cylinder does not belong to a high-pressure container of special equipment, and the regular detection is not needed according to the supervision regulation of a gas cylinder, thereby reducing the maintenance cost of the equipment; the present invention can effectively transport the last residual fire extinguishing agent from the gas cylinder and the pipeline to the protection area.
Description
Technical Field
The invention relates to the technical field of fire fighting devices, in particular to a method for driving a fire extinguishing agent by a gas generating type cylinder and a fire extinguishing system with the method.
Background
The prior art uses gas fire extinguishing devices or systems, in which the fire extinguishing agent is delivered by high pressure gas (usually compressed nitrogen) stored in a high pressure gas cylinder through a pipe network to a nozzle for fire extinguishing (see fig. 1 for details). The fire extinguishing system adopting the high-pressure gas cylinder to store the fire extinguishing agent and the driving gas has the following defects: 1. the high-pressure gas cylinder belongs to a high-pressure container of special equipment, and is very inconvenient to transport, install, use and maintain; 2. after the gas fire extinguishing agent leaks or is sprayed, refilling the gas cylinder is carried out by qualified units or manufacturers, and the temporary spare gas cylinder is used for preventing the system from being stopped, so that the cost is increased; 3. because the system uses the gas cylinder to store high-pressure gas, a large amount of labor force and professional personnel are required to deal with the safety problem of the high-pressure gas; 4. because the system uses the high-pressure gas cylinder with normal pressure to store high-pressure gas, the risk of fire extinguishing agent and high-pressure gas leakage is high, and once the fire extinguishing agent leaks, the on-line maintenance and filling supplement cannot be carried out; 5. the system uses a high-pressure gas cylinder with normal pressure, and the gas cylinder has high pressure-bearing safety risk due to long-term slight corrosion of the fire extinguishing agent and water; 6. the high-pressure gas cylinder needs to be regularly detected according to a gas cylinder monitoring rule, the fire extinguishing agent needs to be discharged from the gas cylinder every few years, and the fire extinguishing agent is filled back after the gas cylinder is repressurized and is detected to be qualified, so that the equipment maintenance cost is increased; 7. the last residue of fire suppressant cannot be transported from the cylinders and pipes to the protected area.
Disclosure of Invention
The invention provides a method for driving a fire extinguishing agent by a gas-producing cylinder and a fire extinguishing system with the method, which are used for overcoming the defects of the prior art.
In order to solve the technical problems, the invention adopts the technical scheme that:
a method for driving fire extinguishing agent by gas generating cylinder features that when fire occurs, the gas generator on cylinder body generates pressure gas to drive piston to move downward, so driving the fire extinguishing agent to explode the explosion piece at bottom of cylinder body for releasing the fire extinguishing agent.
Preferably, in the invention, after the piston pushes the fire extinguishing agent in the cylinder body, the piston moves to the bottom of the cylinder body, the sealing membrane on the piston is pierced by the puncture needle positioned at the bottom of the cylinder body, and the gas at the upper end of the cylinder ejects all the fire extinguishing agent remained in the connecting pipe, the collecting pipe, the fire extinguishing agent conveying pipeline and other pipelines from the spray head to the protection area through the pierced membrane.
A fire extinguishing system with the method comprises a cylinder body for storing the fire extinguishing agent and a liquid outlet assembly arranged at the bottom of the cylinder body, wherein a piston capable of dividing the cylinder body into two cavities is arranged in the cylinder body, a gas generator is arranged at the top of the cylinder body, and when the gas generator is started, the gas generator generates pressure gas to push the piston so as to drive the fire extinguishing agent to be released through the liquid outlet assembly; the liquid outlet assembly comprises a rupture disk arranged at a bottom channel of the cylinder body and a compression ring tightly pressing the rupture disk.
The fire extinguishing system with the method further comprises a connecting pipe, a collecting pipe, a selection valve, a fire extinguishing agent conveying pipeline and a nozzle for spraying the fire extinguishing agent to a protection area, wherein the connecting pipe, the collecting pipe, the selection valve and the fire extinguishing agent conveying pipeline are sequentially connected. The middle part of the piston is a channel with steps, the steps are provided with a sealing diaphragm for isolating the upper end and the lower end of the piston and a gland nut for fixing the sealing diaphragm, and the bottom of the cylinder body is provided with a pricker corresponding to the sealing diaphragm. And the collecting pipe is provided with a safety valve. The cylinder block is provided with a filling valve, a liquid level sensor and a one-way valve connected with the bottom channel. And at least one O-shaped rubber sealing ring is embedded in the side wall of the piston.
Preferably, a signal feedback device is arranged in the protection area, and the gas generator, the liquid level sensor, the selection valve and the signal feedback device are respectively connected with a control panel.
By adopting the technical scheme, the invention has the advantages that: the invention adopts the closed fire extinguishing agent cylinder to store the fire extinguishing agent at normal pressure, the fire extinguishing agent cylinder does not belong to a special equipment high-pressure container, and the transportation, the installation, the use and the maintenance are very convenient; the gas fire extinguishing agent is stored under normal pressure, and can be automatically filled immediately after leakage or spraying, so that qualified units or manufacturers are not required, and a temporary spare gas cylinder is not required to prevent the system from stopping; the invention does not need to use a gas cylinder to store high-pressure gas, so that extra labor force and professionals are not needed to deal with the safety problem of the high-pressure gas; the invention adopts the closed fire extinguishing agent cylinder to store the fire extinguishing agent at normal pressure, the fire extinguishing agent leakage risk is extremely low, and if the fire extinguishing agent leaks, the fire extinguishing agent can be maintained and filled and supplemented on line; the fire extinguishing agent cylinder is used for storing the fire extinguishing agent at normal pressure, and the fire extinguishing agent cylinder is not pressurized at ordinary times, so that the pressure-bearing safety risk caused by long-term slight corrosion of the fire extinguishing agent and water is avoided; the invention adopts the closed fire extinguishing agent cylinder to store the fire extinguishing agent at normal pressure, the fire extinguishing agent cylinder does not belong to a high-pressure container of special equipment, and the regular detection is not needed according to the supervision regulation of a gas cylinder, thereby reducing the maintenance cost of the equipment; the present invention can effectively transport the last residual fire extinguishing agent from the gas cylinder and the pipeline to the protection area.
Drawings
FIG. 1 is a schematic view of a prior art fire suppression system.
Figure 2 is a schematic view 1 of the present invention.
Figure 3 is a schematic of the present invention figure 2.
Figure 4 is a schematic view 3 of the present invention.
Wherein: a fire extinguishing agent 100; a cylinder block 1; a piston 2; a gas generator 3; a filling valve 4; a liquid level sensor 5; a check valve 6; a rupture disk 7; a compression ring 8; a sealing membrane 9; a compression nut 10; a lancet 11; a connecting tube 12; a header pipe 13; a selector valve 14; a fire extinguishing agent delivery pipe 15; a nozzle 16; a signal feedback device 17; a control panel 18; an O-shaped rubber seal ring 19; a safety valve 20.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
According to the method for driving the fire extinguishing agent by the gas generating type cylinder, when a fire breaks out, the gas generator on the cylinder body generates pressure gas to push the piston to move downwards, the fire extinguishing agent is driven to explode the rupture disk at the bottom of the cylinder body, and the fire extinguishing agent is released.
In a preferred embodiment, after the piston pushes the fire extinguishing agent in the cylinder block, the piston moves to the bottom of the cylinder block, the sealing membrane on the piston is pierced by the piercing needle at the bottom of the cylinder block, and the gas at the upper end of the cylinder ejects all the fire extinguishing agent remaining in the connecting pipe, the collecting pipe and the fire extinguishing agent conveying pipeline from the nozzle to the protection area through the pierced membrane.
As shown in fig. 2-4, the fire extinguishing system with the method of the present embodiment includes a cylinder block 1 for storing fire extinguishing agent 100 and a liquid outlet assembly disposed at the bottom of the cylinder block 1, the cylinder block 1 is generally cylindrical, a piston 2 capable of dividing the cylinder body 1 into two cavities is arranged in the cylinder body 1, the piston 2 is used for sealing the fire extinguishing agent 1, the whole structure of the piston 2 is a cylinder, can slide up and down in the cylinder block 1, is used for pushing the fire extinguishing agent when the fire breaks out, the top of the cylinder block 1 is provided with a gas generator 3, the gas generator 3 described in the invention is a purchasing member, without disclosing the specific structure of the present invention, when the gas generator 3 is activated, the gas generator 3 generates pressure gas to push the piston 2 and thus drive the fire extinguishing agent to be released through the liquid outlet assembly. The cylinder block 1 is equipped with a filling valve 4, a level sensor 5 and a one-way valve 6 connected to the bottom channel.
As a preferred embodiment, the liquid outlet assembly of this embodiment includes a rupture disk 7 disposed in the bottom channel of the cylinder block 1 and a pressing ring 8 for pressing the rupture disk 7, where the rupture disk 7 is a circular convex metal sheet for sealing the fire extinguishing agent, when a fire breaks out, the gas generator 3 generates pressure gas to push the piston 2 to drive the fire extinguishing agent, and when the pressure of the fire extinguishing agent in the cylinder block 1 reaches the bursting pressure of the rupture disk 7, the rupture disk 7 automatically bursts to release the fire extinguishing agent. In order to increase the sealing performance of the piston 2, at least one O-shaped rubber sealing ring 19 is embedded in the side wall of the piston 2. The axes of the gas generator 3, the piston 2, the gland nut 10, the sealing diaphragm 9 and the spike 11 coincide.
As a preferred embodiment, in the present embodiment, the middle of the piston 2 is a channel having a step, a sealing diaphragm 9 for separating the upper end and the lower end of the piston 2 and a gland nut 10 for fixing the sealing diaphragm 9 are disposed on the step, a spike 11 corresponding to the sealing diaphragm 9 is disposed at the bottom of the cylinder block 1, the spike 11 is a hollow cylinder, and the edge of the upper end of the spike is a sharp cutting edge.
As a preferred embodiment, the fire extinguishing system with the method further comprises a connecting pipe 12 for delivering the fire extinguishing agent, a collecting pipe 13, a selector valve 14, a fire extinguishing agent delivery pipe 15 and a nozzle 16 for spraying the fire extinguishing agent to the protected area, which are connected in sequence, wherein the connecting pipe 12 is a high-pressure hose and is arranged between the check valve 6 and the collecting pipe 13, and the connecting pipe is used for delivering the fire extinguishing agent to the collecting pipe 13 during spraying, and plays a role in buffering pressure and reducing vibration; the collecting pipe 13 is used for collecting high-pressure fire extinguishing agent medium flow output by the cylinder block 1, the collecting pipe 13 is provided with a safety valve 20, and when the pressure of the safety valve 20 exceeds 1.1 times of rated working pressure, the safety valve 20 is opened to release the pressure so as to perform overpressure protection on the system; the selector valves 14 are arranged on the collecting pipe 13, when one fire extinguishing system simultaneously protects a plurality of protection areas, the same number of selector valves 14 can be arranged according to the number of the protection areas, and when a fire breaks out in any protection area, the selector valve 14 corresponding to the corresponding protection area is started, so that the fire extinguishing agent is sprayed into the corresponding protection area to extinguish the fire; a signal feedback device 17 is arranged in the protection area, and the gas generator 3, the liquid level sensor 5, the selector valve 14 and the signal feedback device 17 are respectively connected with a control panel 18; when a fire disaster happens and fire extinguishing agents are released, the signal feedback device 17 feeds signals back to the control panel 18, the control panel 18 receives fire alarm signals, the gas generator 3 on the fire extinguishing agent cylinder is controlled to be started, the selection valve 14 corresponding to the protection area is opened at the same time, the automatic starting and manual starting functions are achieved, and after starting failure in an automatic state, fire extinguishing can be carried out through emergency manual starting. The control panel 18 can automatically control the number of fire suppressant cylinders to be activated according to the amount of fire suppressant required in each protected area. The control panel 18 also has the function of monitoring the fire suppressant level and pressure signal feedback after fire suppressant is dispensed. The nozzles 16 are installed on the pipe network in the protected area, and the high-pressure fire extinguishing agent medium flow is atomized through the nozzles 16, then rapidly vaporized by heat, and uniformly distributed in the fire protection area for fire extinguishing.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for driving fire extinguishing agent by gas generating cylinder is characterized in that when a fire breaks out, a gas generator on a cylinder body generates pressure gas to push a piston to move downwards, and the fire extinguishing agent is driven to explode a rupture disk at the bottom of the cylinder body to release the fire extinguishing agent.
2. The method for driving fire extinguishing agent by gas-producing cylinder according to claim 1, characterized in that after the piston finishes pushing the fire extinguishing agent in the cylinder, the piston moves to the bottom of the cylinder, the sealing membrane on the piston is pierced by the puncture needle at the bottom of the cylinder, and the gas at the upper end of the cylinder ejects all the fire extinguishing agent remained in the pipeline from the nozzle to the protection area through the pierced membrane.
3. A fire extinguishing system having the method of any one of claims 1 to 2, comprising a cylinder block for storing fire extinguishing agent and a liquid outlet assembly disposed at the bottom of the cylinder block, wherein a piston is disposed in the cylinder block and divides the cylinder block into two chambers, and a gas generator is disposed at the top of the cylinder block, and when activated, the gas generator generates pressurized gas to push the piston and thereby drive the fire extinguishing agent to be released through the liquid outlet assembly.
4. The fire suppression system of claim 3, wherein the exit port assembly comprises a rupture disc disposed in the bottom passage of the cylinder block and a compression ring compressing the rupture disc.
5. The fire extinguishing system of claim 3, further comprising a connecting pipe for fire extinguishing agent delivery, a collecting main, a selector valve, a fire extinguishing agent delivery pipe, and a nozzle for spraying fire extinguishing agent to the protected area, which are connected in series.
6. The fire extinguishing system according to claim 3, wherein the piston has a passage with a step in the middle, a sealing membrane for separating the upper and lower ends of the piston and a compression nut for fixing the sealing membrane are provided on the step, and a puncture needle corresponding to the sealing membrane is provided at the bottom of the cylinder block.
7. A fire suppression system according to claim 3, wherein the cylinder block is fitted with a charge valve, a level sensor and a one-way valve connecting the bottom passage.
8. The fire suppression system of claim 3, wherein at least one O-ring is embedded in a side wall of said piston.
9. The fire extinguishing system of claim 5, wherein the protected area is provided with a signal feedback device, and the gas generator, the liquid level sensor, the selector valve and the signal feedback device are respectively connected with a control panel.
10. The fire suppression system of claim 5, wherein a safety valve is provided on the manifold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478941.6A CN113018737A (en) | 2021-04-30 | 2021-04-30 | Method for driving fire extinguishing agent by gas production type cylinder and fire extinguishing system with method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478941.6A CN113018737A (en) | 2021-04-30 | 2021-04-30 | Method for driving fire extinguishing agent by gas production type cylinder and fire extinguishing system with method |
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| CN113018737A true CN113018737A (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110478941.6A Pending CN113018737A (en) | 2021-04-30 | 2021-04-30 | Method for driving fire extinguishing agent by gas production type cylinder and fire extinguishing system with method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114432629A (en) * | 2021-12-31 | 2022-05-06 | 王晶 | System capable of implementing accurate fire extinguishing in laboratory |
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2021
- 2021-04-30 CN CN202110478941.6A patent/CN113018737A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114432629A (en) * | 2021-12-31 | 2022-05-06 | 王晶 | System capable of implementing accurate fire extinguishing in laboratory |
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