CN110681096B - Aerosol fire extinguishing device capable of realizing bidirectional pressure relief and pressure relief method thereof - Google Patents
Aerosol fire extinguishing device capable of realizing bidirectional pressure relief and pressure relief method thereof Download PDFInfo
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- CN110681096B CN110681096B CN201911051139.8A CN201911051139A CN110681096B CN 110681096 B CN110681096 B CN 110681096B CN 201911051139 A CN201911051139 A CN 201911051139A CN 110681096 B CN110681096 B CN 110681096B
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- outer cylinder
- fire extinguishing
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- pressure relief
- inner cylinder
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000443 aerosol Substances 0.000 title claims abstract description 22
- 230000002457 bidirectional effect Effects 0.000 title abstract description 5
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 239000007921 spray Substances 0.000 claims abstract description 11
- 230000000977 initiatory effect Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012994 industrial processing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
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- Health & Medical Sciences (AREA)
- 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 an aerosol fire extinguishing device capable of realizing bidirectional pressure relief and a pressure relief method thereof, wherein the device part comprises an inner cylinder, a fire extinguishing agent grain is arranged in the inner cylinder, the top of the inner cylinder is connected with a top cover, a plurality of spray holes are formed in the top cover, an outer cylinder is arranged on the outer side of the inner cylinder, a baffle frame is arranged at the top of the outer cylinder, and a relief hole is formed in the bottom of the outer cylinder; in addition, the invention also discloses a corresponding pressure relief method; the device has compact and simple structure, high reliability and convenient installation; the device can efficiently carry out the pressure relief process when the fire extinguishing agent knocks, avoids the phenomenon that the fire extinguishing agent cylinder moves due to the action of recoil force when the fire extinguishing agent cylinder is depressurized, and ensures the safety of surrounding equipment.
Description
Technical Field
The invention relates to the technical field of fire protection, in particular to an aerosol fire extinguishing device capable of realizing bidirectional pressure relief and a pressure relief method thereof.
Background
The occurrence of fire often causes great loss to lives and property of people, and timely and effective fire-fighting equipment can eliminate the fire in the bud. In modern work and living environment, relatively airtight places such as transportation means, electronic equipment, household appliances and kitchen, ordinary mobile fire extinguishing device can effectively solve the problem of putting out a fire, but to some unmanned confined spaces, such as urban utility tunnel, small-size unmanned on duty basic station etc. application places, if use current mobile fire extinguishing device, it often can lead to causing harm to human body or property because of putting out a fire untimely. Therefore, the fixed automatic fire extinguishing device installed in the space is indispensable, however, most of the existing fixed fire extinguishing devices only consider to set a pressure relief hole on one side or set a complex explosion venting structure, if the fire extinguishing agent knocks, the pressure relief process can not be rapidly carried out simply by pressure relief through the pressure relief hole on one side, so that the area near the pressure relief hole is extremely easy to burst, and the fire extinguishing agent cylinder is extremely easy to move due to the action of recoil force to damage surrounding equipment in the pressure relief process, and the use of the complex explosion venting structure can lead to the high cost and the high cost of the whole fire extinguishing device.
Disclosure of Invention
The invention aims to overcome the defects and provide the aerosol fire extinguishing device capable of realizing bidirectional pressure relief and the pressure relief method thereof, which have the advantages of simple device structure, low cost and easy popularization and application, can effectively perform the pressure relief process on the fire extinguishing agent when the fire extinguishing agent knocks, and simultaneously avoid the phenomenon that the fire extinguishing agent cylinder moves due to the action of recoil force during pressure relief.
The invention aims to solve the technical problems, and adopts the technical scheme that: the aerosol fire extinguishing device comprises an inner cylinder, a fire extinguishing agent column is arranged in the inner cylinder, the top of the inner cylinder is connected with a top cover, a plurality of spray holes are formed in the top cover, an outer cylinder is arranged on the outer side of the inner cylinder, a baffle frame is arranged at the top of the outer cylinder, and a discharge hole is formed in the bottom of the outer cylinder.
Preferably, the surface of the inner cylinder is sleeved with a mounting ring, the end part of the mounting ring is provided with a through hole, and the outer cylinder is tightly attached to the periphery of the mounting ring.
More preferably, the outer cylinder comprises an upper outer cylinder and a lower outer cylinder which are mutually butted, and the upper outer cylinder and the lower outer cylinder are sleeved and fixed on the periphery of the mounting ring.
More preferably, screw holes for penetrating screws are formed in the bottoms of the upper outer cylinder, the tops of the lower outer cylinder and the periphery of the mounting ring.
More preferably, the surface of the butt joint position of the upper outer cylinder and the lower outer cylinder is also sleeved with a tightening ring, the tightening ring comprises two semicircular hoops which are connected in a hinged mode, the other end of each semicircular hoops is provided with a mounting plate, and the mounting plate is provided with a mounting hole.
Preferably, a separation net is further arranged above the fire extinguishing agent grain, and the separation net is provided with a coolant.
Preferably, the fire extinguishing agent grain is contacted with the initiating end of the initiating component, and the initiating component is in a thermosensitive wire structure or an electric ignition head structure.
In addition, the invention also discloses a pressure relief method of the aerosol fire extinguishing device, which comprises the following steps:
Step 1): the fire extinguishing agent grain in the inner cylinder is ignited by the starting component to generate hot aerosol gas, and the hot aerosol gas is sprayed out from the spray hole formed in the top cover to realize the fire extinguishing process;
step 2): when the explosive column of the fire extinguishing agent knocks, a large amount of generated hot air flow is accumulated in the inner cylinder, the pressure in the inner cylinder is suddenly increased and the top cover is flushed out, and the top cover is separated from the inner cylinder and is blocked by the blocking frame;
Step 3): part of hot air is sprayed out of the device from the spray hole of the top cover to realize the forward pressure relief process;
Step 4): the other part of hot air flows into the gap between the outer side wall of the inner cylinder and the inner side wall of the outer cylinder along the gap between the top cover and the top of the inner cylinder, and then is sprayed into the air outside the device through the discharge hole at the bottom of the outer cylinder, so that the reverse pressure release process is realized.
The invention has the beneficial effects that:
1. the device has compact and simple structure, high reliability and convenient installation; the device can efficiently carry out the pressure relief process when the fire extinguishing agent knocks, avoids the phenomenon that the fire extinguishing agent cylinder moves due to the action of recoil force when the fire extinguishing agent cylinder is depressurized, and ensures the safety of surrounding equipment.
2. The invention can realize the positive and negative two-way pressure relief process, firstly, when the pressure in the inner cylinder is suddenly increased and the top cover is flushed out, the pressure in the inner cylinder is suddenly reduced at the moment that the top cover falls off, and a part of hot air flow is sprayed out of the device from the spray hole of the top cover, so that the positive first pressure relief process is realized; the other part of hot air flows enter the gap between the outer side wall of the inner cylinder and the inner side wall of the outer cylinder along the gap between the top cover and the top of the inner cylinder, and then is sprayed into the air outside the device through the discharge hole at the bottom of the outer cylinder, so that the reverse second pressure relief process is realized.
3. Because the device is in the pressure release in-process, forward pressure release and reverse pressure release are gone on simultaneously, and the opposite direction can offset most kinetic energy each other, is unlikely to whole barrel to take place to remove and departure fixed mounting position, greatly increased its security.
Drawings
FIG. 1 is a schematic perspective view of an aerosol fire extinguishing apparatus capable of bidirectionally releasing pressure;
FIG. 2 is a schematic perspective view of FIG. 1 from the bottom obliquely upward;
FIG. 3 is a schematic view of an exploded structure of the outer cylinder and the grip ring of FIG. 1;
FIG. 4 is a schematic view of the connection between the inner barrel and the mounting ring;
FIG. 5 is a schematic view of the internal structure of the inner barrel;
FIG. 6 is a schematic cross-sectional view of the structure of FIG. 1 taken vertically along a central axis;
In the figure: the novel anti-explosion safety device comprises an inner cylinder 1, a separation net 2, a top cover 3, spray holes 4, an outer cylinder 5, an upper outer cylinder 5.1, a lower outer cylinder 5.2, a baffle frame 6, a discharge hole 7, a mounting ring 8, a through hole 9, a screw hole 10, a tightening hoop 11, a semicircular hoop 11.1, a mounting plate 11.2 and a mounting hole 11.3.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples.
As shown in fig. 1 to 6, an aerosol fire extinguishing device capable of bidirectionally releasing pressure comprises an inner barrel 1, wherein fire extinguishing agent grains are arranged in the inner barrel 1, the top of the inner barrel 1 is connected with a top cover 3, a plurality of spray holes 4 are formed in the top cover 3, an outer barrel 5 is arranged on the outer side of the inner barrel 1, a baffle frame 6 is arranged at the top of the outer barrel 5, and a release hole 7 is formed in the bottom of the outer barrel 5. In the embodiment, the blocking frame 6 can effectively prevent the top cover 3 from flying out when falling off, so that the safety of the device is ensured.
Preferably, the surface of the inner cylinder 1 is sleeved with a mounting ring 8, the end part of the mounting ring 8 is provided with a through hole 9, and the outer cylinder 5 is tightly attached to the periphery of the mounting ring 8. Can separate urceolus 5 and inner tube 1 through collar 8 for can keep certain gap between urceolus 5 and the inner tube 1, one plays thermal-insulated effect, prevents that the heat from conducting to urceolus 5 fast after inner tube 1 high temperature, and the two hot air current passes through from the gap after the deflagration of being convenient for, and after collar 8 tip is equipped with through hole 9, can guarantee that hot air current can not be blocked by collar 8, makes the gap space that inner tube 1 lateral wall and urceolus 5 inside wall formed link up from top to bottom, does not influence the pressure release process.
More preferably, the outer cylinder 5 comprises an upper outer cylinder 5.1 and a lower outer cylinder 5.2 which are mutually butted, and the upper outer cylinder 5.1 and the lower outer cylinder 5.2 are sleeved and fixed on the periphery of the mounting ring 8. The outer cylinder 5 is arranged in a combined mode, so that the installation process of the fire extinguishing device is facilitated.
More preferably, screw holes 10 for penetrating screws are formed in the bottoms of the upper outer cylinder 5.1, the tops of the lower outer cylinder 5.2 and the periphery of the mounting ring 8. After the design, the upper outer cylinder 5.1, the lower outer cylinder 5.2 and the mounting ring 8 can be assembled, mounted and fixed together, which is beneficial to the continuous industrial production and processing process.
More preferably, the surface of the butt joint position of the upper outer cylinder 5.1 and the lower outer cylinder 5.2 is also sleeved with a tightening ring 11, the tightening ring 11 comprises two semicircular hoops 11.1 which are connected in a hinged mode, the other end of each semicircular hoops 11.1 is provided with a mounting plate 11.2, and the mounting plates 11.2 are provided with mounting holes 11.3. The upper outer cylinder 5.1 and the lower outer cylinder 5.2 can be further tightly clamped on the surface of the mounting ring 8 through the clamping ring 11, and after the two semicircular clamping rings 11.1 are folded, the two semicircular clamping rings can be tightly fastened with objects in a surrounding narrow space through the mounting plate 11.2, so that the whole installation process of the aerosol fire extinguishing device is facilitated.
Preferably, a separation net 2 is further arranged above the fire extinguishing agent grain, and a coolant is arranged on the separation net 2. In this embodiment, the extinguishing agent grain is a solid cylinder structure made of aerosol generating agent, and the coolant may be ceramic balls, so that the temperature brought by spraying the extinguishing agent can be further reduced.
Preferably, the fire extinguishing agent grain is contacted with the initiating end of the initiating component, and the initiating component is in a thermosensitive wire structure or an electric ignition head structure. In this embodiment, a detecting device may be disposed outside the fire extinguishing device, a line of the detecting device is connected with the controller, an output end of the controller is connected with a start line of the starting component, when a fire disaster, an overheat or the like occurs, the detecting device (the detecting device is a temperature sensor and/or a smoke sensor) detects that the outside generates a high temperature environment due to the fire disaster, and then sends a signal to the controller (in this embodiment, the controller may select a 51 single-chip microcomputer, a model is 80C51 single-chip microcomputer, or select an STM32 microprocessor, a model is STM32F 103), and the controller controls the starting component to directly ignite the fire extinguishing agent grain, thereby starting the fire extinguishing process.
In addition, the invention also discloses a pressure relief method of the aerosol fire extinguishing device, which comprises the following steps:
step 1: the extinguishing agent grain in the inner cylinder 1 is ignited by the starting component to generate hot aerosol gas, and the hot aerosol gas is sprayed out from the spray hole 4 arranged on the top cover 3 to realize the extinguishing process;
step 2: when the explosive column of the fire extinguishing agent knocks, a large amount of generated hot air flow is accumulated in the inner cylinder, the pressure in the inner cylinder 1 is suddenly increased and the top cover 3 is flushed out, and the top cover 3 is separated from the inner cylinder 1 and blocked by the blocking frame 6;
Step 3: part of hot air is sprayed out of the device from the spray hole 4 of the top cover 3 to realize a forward pressure relief process;
step 4: the other part of hot air flows into the gap between the outer side wall of the inner cylinder 1 and the inner side wall of the outer cylinder 5 along the gap between the top cover 3 and the top of the inner cylinder 1, and then is sprayed into the air outside the device through the discharge hole 7 at the bottom of the outer cylinder 5, so that the reverse pressure release process is realized.
The above embodiments are merely preferred embodiments of the present application, and should not be construed as limiting the present application, and the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without collision. The protection scope of the present application is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.
Claims (4)
1. The utility model provides an aerosol extinguishing device that can two-way pressure release, includes inner tube (1), be equipped with fire extinguishing agent grain in inner tube (1), inner tube (1) top is connected with top cap (3), a plurality of orifices (4), its characterized in that have been seted up on top cap (3): an outer cylinder (5) is arranged outside the inner cylinder (1), a baffle frame (6) is arranged at the top of the outer cylinder (5), and a discharge hole (7) is arranged at the bottom of the outer cylinder (5); the surface of the inner cylinder (1) is sleeved with a mounting ring (8), a through hole (9) is formed in the end part of the mounting ring (8), and the outer cylinder (5) is tightly attached to the periphery of the mounting ring (8); the fire extinguishing agent grain is contacted with the initiation end of the initiation component, and the initiation component is of a thermosensitive wire structure or an electric ignition head structure; the outer cylinder (5) comprises an upper outer cylinder (5.1) and a lower outer cylinder (5.2) which are mutually butted, and the upper outer cylinder (5.1) and the lower outer cylinder (5.2) are sleeved and fixed on the periphery of the mounting ring (8); screw holes (10) for penetrating screws are formed in the bottoms of the upper outer cylinder (5.1), the tops of the lower outer cylinder (5.2) and the periphery of the mounting ring (8).
2. The aerosol fire extinguishing apparatus capable of bidirectionally decompressing according to claim 1, wherein: the upper outer cylinder (5.1) and the lower outer cylinder (5.2) are in butt joint, the surface of the position is further sleeved with a tightening hoop (11), the tightening hoop (11) comprises two semicircular hoops (11.1) which are connected in a hinged mode, the other end of each semicircular hoops (11.1) is provided with a mounting plate (11.2), and mounting holes (11.3) are formed in the mounting plates (11.2).
3. The aerosol fire extinguishing apparatus capable of bidirectionally decompressing according to claim 1, wherein: a separation net (2) is arranged above the fire extinguishing agent grain, and a coolant is arranged on the separation net (2).
4. A method of depressurizing an aerosol fire extinguishing apparatus according to any of claims 1 to 3, characterized in that: it comprises the following steps:
Step 1): the extinguishing agent grain in the inner cylinder (1) is ignited by the starting component to generate hot aerosol gas, and the hot aerosol gas is sprayed out from the spray hole (4) arranged on the top cover (3) to realize the extinguishing process;
Step 2): when the explosion happens to the fire extinguishing agent grain, a large amount of generated hot air flow is accumulated in the inner cylinder, the pressure in the inner cylinder (1) is suddenly increased and the top cover (3) is flushed out, and the top cover (3) is blocked by the blocking frame (6) after being separated from the inner cylinder (1);
step 3): part of hot air is sprayed out of the device from the spray hole (4) of the top cover (3) to the air outside the device, so that a forward pressure relief process is realized;
step 4): the other part of hot air flows into the gap between the outer side wall of the inner cylinder (1) and the inner side wall of the outer cylinder (5) along the gap between the top cover (3) and the top of the inner cylinder (1), and then is sprayed into the air outside the device through the discharge hole (7) at the bottom of the outer cylinder (5), so that the reverse pressure release process is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911051139.8A CN110681096B (en) | 2019-10-31 | 2019-10-31 | Aerosol fire extinguishing device capable of realizing bidirectional pressure relief and pressure relief method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911051139.8A CN110681096B (en) | 2019-10-31 | 2019-10-31 | Aerosol fire extinguishing device capable of realizing bidirectional pressure relief and pressure relief method thereof |
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| Publication Number | Publication Date |
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| CN110681096A CN110681096A (en) | 2020-01-14 |
| CN110681096B true CN110681096B (en) | 2024-05-17 |
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| CN201911051139.8A Active CN110681096B (en) | 2019-10-31 | 2019-10-31 | Aerosol fire extinguishing device capable of realizing bidirectional pressure relief and pressure relief method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112675463A (en) * | 2020-01-20 | 2021-04-20 | 湖北及安盾消防科技有限公司 | Airtight pulse type fire extinguishing device and electrical equipment |
| CN114259672A (en) * | 2021-12-31 | 2022-04-01 | 苏州久港消防设备有限公司 | Hand-held type control by temperature change fire extinguisher |
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| US20070079972A1 (en) * | 2005-09-23 | 2007-04-12 | Fireaway Llc | Manually activated, portable fire-extinguishing aerosol generator |
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| CN110681096A (en) | 2020-01-14 |
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