CN220070578U - Indirect starting mechanism of fire extinguishing device - Google Patents
Indirect starting mechanism of fire extinguishing device Download PDFInfo
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- CN220070578U CN220070578U CN202320740902.3U CN202320740902U CN220070578U CN 220070578 U CN220070578 U CN 220070578U CN 202320740902 U CN202320740902 U CN 202320740902U CN 220070578 U CN220070578 U CN 220070578U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims description 78
- 238000007789 sealing Methods 0.000 claims description 13
- 230000008713 feedback mechanism Effects 0.000 claims description 12
- 239000000443 aerosol Substances 0.000 claims description 9
- 239000003814 drug Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 239000012528 membrane Substances 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 238000013022 venting Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical class CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009924 canning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses an indirect starting mechanism of a fire extinguishing device, which comprises an indirect starting mechanism matched with a main gas generating agent, wherein the indirect starting mechanism comprises a starting shell, a second piston in sliding fit with the starting shell is arranged in the starting shell, and a secondary gas generating agent is arranged between the second piston and the starting shell; the indirect starting mechanism of the utility model ensures that the fire extinguishing agent spraying pressure is not reduced due to air leakage in the spraying process of the fire extinguishing device, thereby greatly improving the energy efficiency of the fire extinguishing device.
Description
Technical Field
The utility model relates to the technical field of fire control, in particular to an indirect starting mechanism of a fire extinguishing device.
Background
Many extinguishing devices in the market at present adopt a non-pressure storage form, and compared with the pressure storage type extinguishing devices, the pressure storage type extinguishing devices have the advantages that the devices are not provided with pressure in the transportation, installation and normal operation states, so that the safety performance of the devices is greatly improved.
The mode of the non-pressure-storage fire extinguishing device adopted in the market is that a gas generating agent is generally loaded in the fire extinguishing device, and when the fire extinguishing device is started, the gas generating agent generates a large amount of gas so as to push fire extinguishing substances such as dry powder, a water machine, perfluorinated hexanone and the like in the fire extinguishing device to spray out of the fire extinguishing device to extinguish fire. However, such devices generally face a problem, and the starting mode of the gas generating agent is generally a thermosensitive wire and/or an electronic ignition head, if the sealing effect of the outlet portion is poor, a large amount of gas generated by the gas generating agent can be sprayed outwards from the outlet portion, so that the spraying pressure of the fire extinguishing device is reduced, and the fire extinguishing effect of the fire extinguishing device is reduced. In response to this problem, many products employ a seal that enhances the outgoing line location to reduce the risk of air leakage. However, the actual application environment of the fire extinguishing device may have conditions of high temperature, high humidity, salt corrosion, corrosion and the like, so that the sealing effect is reduced. In addition, the fire extinguishing device may have a feedback line in addition to the starting line, and the more wires are led into the device, the more the sealing function of the device is easy to fail.
The fire extinguishing device is started in a heat conduction mode in the 202121860046.2 patent, after the fire extinguishing device is started, the condition that gas generating agent cannot leak gas can be guaranteed in the mode, but heat is difficult to guarantee to be intensively transmitted to the gas generating agent and a starting structure thereof in a heat conduction mode, and certain heat can be absorbed along with the addition of a feedback wire harness and a feedback device. In addition, the efficiency of heat conduction is lower than that of direct starting, if a feedback device (a thermistor) is added at the position of the first igniting cable, a condition may occur that the first igniting cable is started, the feedback device sends a feedback signal, but the second igniting cable is not started due to the fact that heat conduction is not concentrated, or the gas generating agent is not started after a long time, an error signal is provided for personnel, and people can misjudge that the device is started, so that the fire is caused.
Disclosure of Invention
The utility model aims to overcome the defects and provide an indirect starting mechanism of the fire extinguishing device, so that the fire extinguishing device can not reduce the spraying pressure of the fire extinguishing agent due to air leakage in the spraying process, and the energy efficiency of the fire extinguishing device is improved.
The utility model aims to solve the technical problems, and adopts the technical scheme that: the indirect starting mechanism comprises a starting shell, a second piston which is in sliding fit with the starting shell is arranged in the starting shell, and a secondary gas generating agent is arranged between the second piston and the starting shell.
Preferably, the secondary gas generating agent is contacted with one end of the first starting line, and a second starting line is arranged between the second piston and the main gas generating agent.
Preferably, the side part or the top of the second piston is provided with ignition powder, and the inner wall of the starting shell is provided with a friction layer.
Preferably, the first starting line is an electric ignition head structure.
Preferably, the second start line is a thermosensitive line structure.
Preferably, the second piston is of a metal structure, wires are arranged on two sides of the rear end of the starting shell, and the wires are connected with the feedback mechanism.
Preferably, the main gas generating agent is arranged in a medicament bin, and the medicament bin is communicated with the front end of the starting shell.
Preferably, the rear end of the starting shell is further provided with an insulating sealing plug.
Preferably, the main gas generating agent and the secondary gas generating agent are both aerosol generating agents.
The utility model has the beneficial effects that:
1. the indirect starting mechanism of the utility model ensures that the fire extinguishing agent spraying pressure is not reduced due to air leakage in the spraying process of the fire extinguishing device, thereby greatly improving the energy efficiency of the fire extinguishing device.
2. When the second piston moves reversely to contact the lead, the circuit where the feedback mechanism is positioned is connected, so that the corresponding alarm gives an alarm, and accurate judgment is provided for people; the second piston can move reversely to contact the lead only when the main gas generating agent is ignited to generate gas with reverse thrust, and the phenomenon that the feedback mechanism works erroneously caused by that the main gas generating agent is not ignited and started can not exist.
3. The indirect starting (or multi-stage starting) mode greatly reduces the requirement of the starting mechanism on the tightness, and the influence of air leakage on the pushing of the piston can be effectively prevented by adopting a conventional sealing structure because the volume of the indirect starting structure is far smaller than that of the fire extinguishing device.
Drawings
FIG. 1 is a schematic cross-sectional view of an indirect start mechanism;
FIG. 2 is a schematic perspective view of a fire extinguishing apparatus with an indirect activation mechanism;
FIG. 3 is a schematic elevational view of the structure of FIG. 2;
fig. 4 is a schematic view of the cross-sectional structure of B-B of fig. 3.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples.
Example 1: as shown in fig. 1, an indirect starting mechanism of a fire extinguishing device comprises an indirect starting mechanism 7 matched with a main gas generating agent 6, the indirect starting mechanism 7 comprises a starting shell 7.1, a second piston 7.2 in sliding fit with the starting shell 7.1 is arranged in the starting shell 7.1, and a secondary gas generating agent 7.3 is arranged between the second piston 7.2 and the starting shell 7.1.
Preferably, the secondary gas generating agent 7.3 is in contact with one end of the first starting line 7.4, and a second starting line 7.5 is arranged between the second piston 7.2 and the primary gas generating agent 6.
Preferably, the side or top of the second piston 7.2 is provided with an ignition charge 7.6, and the inner wall of the actuation housing 7.1 is provided with a friction layer 7.7. In this embodiment, after the relative movement of the ignition charge 7.6 and the friction layer 7.7, the ignition charge 7.6 is ignited, similar to the way a match head rubs against the side wall of a matchbox.
Preferably, the first actuation wire 7.4 is of an electric ignition head construction. In this embodiment, when the first starting line 7.4 is of an electric ignition head structure, it is connected with a fire detection device, the fire detection device is a temperature sensor and/or a smoke sensor, when a fire, overheat or the like occurs, the fire detection device detects that the outside generates a high temperature environment due to the fire and then sends a signal to the microprocessor, and the microprocessor controls the first starting line 7.4 to ignite the secondary gas generating agent 7.3.
Preferably, the second actuation wire 7.5 is a thermo-sensitive wire structure. The second starting line 7.5 is of a thermosensitive line structure, and after the ignition powder 7.6 is ignited, the second starting line 7.5 can be directly ignited, and finally the main gas generating agent 6 is directly ignited.
Preferably, the second piston 7.2 is of a metal structure, two sides of the rear end of the starting shell 7.1 are provided with conducting wires 7.8, and the conducting wires 7.8 are connected with the feedback mechanism. In the embodiment, the feedback mechanism can adopt an alarm, and when the second piston 7.2 moves reversely to contact the lead 7.8, the circuit of the feedback mechanism is turned on, so that the corresponding alarm alarms, and accurate judgment is provided for people; in addition, the second piston 7.2 in the utility model can move reversely to contact the lead 7.8 only when the main gas generating agent 6 is ignited to generate gas with reverse thrust, so that the phenomenon that the feedback mechanism works erroneously caused by the fact that the main gas generating agent 6 is not ignited to start can be avoided.
Preferably, the main gas generating agent 6 is arranged in the medicament bin 13, and the medicament bin 13 is communicated with the front end of the starting shell 7.1.
Preferably, the rear end of the actuation housing 7.1 is further provided with an insulating sealing plug 7.9. The insulating sealing plug 7.9 in this embodiment is made of a nonmetallic material, so that water inflow, air leakage and short circuit of the indirect starting structure 7 can be prevented, and the influence of air leakage on the pushing of the first piston 4 can be effectively prevented by adopting a conventional sealing structure because the volume of the indirect starting structure 7 is far smaller than that of the fire extinguishing device.
Preferably, the main gas generating agent 6 and the secondary gas generating agent 7.3 are both aerosol generating agents. After the aerosol generating agent is selected as the main gas generating agent 6 and the secondary gas generating agent 7.3, a large amount of aerosol or gas can be generated after the aerosol generating agent is ignited, so that thrust is provided for the ejection of the fire extinguishing agent.
Example 2: the utility model also discloses a starting method of the indirect starting mechanism of the fire extinguishing device, which comprises the following steps:
s1: when fire occurs outside, the first starting line 7.4 ignites the secondary gas generating agent 7.3, and the secondary gas generating agent 7.3 burns to generate gas, so that the second piston 7.2 in the starting shell 7.1 is pushed to move to the position where the second starting line 7.5 is located;
s2: during the movement of the second piston 7.2, the ignition charge 7.6 generates heat by friction with the friction layer 7.7 to be ignited, and the ignition charge 7.6 generates heat to ignite the second starting line 7.5;
s3: the second starting line 7.5 ignites the main gas generating agent 6, the main gas generating agent 6 burns to generate gas, and a part of gas generated by the main gas generating agent 6 is used as a pushing source of the fire extinguishing agent in the fire extinguishing device, so that the fire extinguishing agent is sprayed out to perform a fire extinguishing process;
s4: the other part of the gas generated by the main gas generating agent 6 can reversely enter the starting shell 7.1, so that the second piston 7.2 is reversely pushed to move towards the position of the wire 7.8, the wire 7.8 and the feedback mechanism thereof are connected, and the feedback mechanism generates a feedback signal.
Preferably, in the step S3, a part of the gas generated from the main gas generating agent 6 pushes the first piston 4 of the fire extinguishing device to move toward the discharge portion, and the fire extinguishing agent is pressurized to be discharged from the discharge portion, thereby performing the fire extinguishing process. This is achieved by the gas generated by the main gas generator 6 pushing the first piston and then pushing the fire extinguishing agent burst through the first piston, examples 3 and 4 being seen in the embodiments.
Preferably, the fire extinguishing agent is a dry powder fire extinguishing agent or a water machine fire extinguishing agent or a perfluorinated hexanone fire extinguishing agent. After the aerosol generating agent is selected as the main gas generating agent 6 and the secondary gas generating agent 7.3, a large amount of aerosol or gas can be generated after the aerosol generating agent is ignited, so that thrust is provided for the ejection of the fire extinguishing agent.
Example 3: as shown in fig. 2-4, the fire extinguishing device adopting the indirect starting mechanism disclosed by the utility model comprises a barrel 1, wherein a spraying part 3 is arranged at the front end of the barrel 1, a first piston 4 in sliding fit with the barrel 1 is arranged in the barrel 1, a fire extinguishing agent 5 is arranged between the first piston 4 and the spraying part 3, a main gas generating agent 6 and an indirect starting mechanism 7 matched with the main gas generating agent 6 are arranged between the first piston 4 and the rear end of the barrel 1, the indirect starting mechanism 7 comprises a starting shell 7.1, a second piston 7.2 in sliding fit with the starting shell 7.1 is arranged in the starting shell 7.1, and a secondary gas generating agent 7.3 is arranged between the second piston 7.2 and the starting shell 7.1.
Preferably, the spraying part 3 comprises a front end cover 3.1 arranged at the front end of the cylinder body 1, a spraying hole 3.2 is formed in the front end cover 3.1, and a nozzle diaphragm 3.3 is arranged in the spraying hole 3.2; one side of the nozzle diaphragm 3.3 is provided with a nozzle bolt 3.4 in threaded fit with the spraying hole 3.2, the other side of the nozzle diaphragm is provided with a tetrafluoro gasket 3.5, and a channel is formed in the nozzle bolt 3.4. In the structure, the nozzle diaphragm 3.3 can be installed in the spraying hole 3.2 through the nozzle bolt 3.4, the installation mode is simple, and meanwhile, the sealing performance of the nozzle bolt 3.4 can be ensured through the arrangement of the tetrafluoro gasket 3.5; the spout membrane 3.3 in this embodiment can play a sealing role before the fire extinguishing device is started to prevent the fire extinguishing agent 5 from absorbing moisture or escaping, and after the fire extinguishing device is started, the spout membrane 3.3 is pressed and broken, so that the fire extinguishing agent 5 is normally sprayed out from the spraying hole 3.2.
Preferably, the front end of the cylinder body 1 is in threaded connection with the front end cover 3.1, the rear end of the cylinder body 1 is in threaded connection with the rear end cover 2, a filling hole 8 is further formed in the front end cover 3.1, and a plug 9 in threaded fit with the filling hole 8 is arranged in the filling hole. After the front end cover 3.1 is provided with the canning hole 5, the fire extinguishing agent 5 can be conveniently filled after manufacturing, and the whole process improves the filling efficiency by unscrewing the plug 9 and filling the fire extinguishing agent 5 into the fire extinguishing device and then installing the plug 9.
Preferably, the surface of the first piston 4 is provided with a explosion venting membrane 10, and a piston sealing ring 11 and a wear-resistant ring 12 are arranged between the side surface of the first piston 4 and the inner side of the cylinder body 1. After the explosion venting membrane 10 is arranged, when the first piston 4 is suddenly blocked in the moving process, the air pressure at one side of the first piston 4 is suddenly increased, and then the pressure is required to be released in time, otherwise, the explosion risk is generated, the explosion venting membrane 10 plays a role in pressure release, and when the pressure reaches a certain value, the explosion venting membrane 10 is broken, so that the air is released from the position in time; after the piston sealing ring 11 is arranged, the air tightness of the first piston 4 during movement can be ensured, the air leakage phenomenon can be prevented, and after the wear-resistant ring 12 (which can be made of hard materials) is arranged, the friction force of the first piston 4 during sliding inside the cylinder body 1 can be greatly reduced, so that the sliding is smoother.
Example 4: the fire extinguishing method of the fire extinguishing device comprises the following steps:
s1: when fire occurs outside, the first starting line 7.4 ignites the secondary gas generating agent 7.3, and the secondary gas generating agent 7.3 burns to generate gas, so that the second piston 7.2 in the starting shell 7.1 is pushed to move to the position where the second starting line 7.5 is located;
s2: during the movement of the second piston 7.2, the ignition charge 7.6 generates heat by friction with the friction layer 7.7 to be ignited, and the ignition charge 7.6 generates heat to ignite the second starting line 7.5;
s3: the second starting line 7.5 ignites the main gas generating agent 6, the main gas generating agent 6 burns to generate gas, a part of gas generated by the main gas generating agent 6 pushes the first piston 4 to move towards the spraying part 3, and the fire extinguishing agent 5 is pressed and sprayed out of the spraying part 3 to perform a fire extinguishing process;
s4: the other part of the gas generated by the main gas generating agent 6 can reversely enter the starting shell 7.1, so that the second piston 7.2 is reversely pushed to move towards the position of the wire 7.8, the wire 7.8 and the feedback mechanism thereof are connected, and the feedback mechanism generates a feedback signal.
The above embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments of the present utility model may be arbitrarily combined with each other without collision. The protection scope of the present utility model 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 utility model are also within the scope of the utility model.
Claims (9)
1. An indirect starting mechanism of a fire extinguishing device comprises an indirect starting mechanism (7) matched with a main gas generating agent (6), and is characterized in that: the indirect starting mechanism (7) comprises a starting shell (7.1), a second piston (7.2) in sliding fit with the starting shell (7.1) is arranged in the starting shell (7.1), and a secondary gas generating agent (7.3) is arranged between the second piston (7.2) and the starting shell (7.1).
2. An indirect starting mechanism for a fire extinguishing apparatus according to claim 1, wherein: the secondary gas generating agent (7.3) is contacted with one end of the first starting line (7.4), and a second starting line (7.5) is arranged between the second piston (7.2) and the main gas generating agent (6).
3. An indirect fire extinguishing apparatus actuating mechanism according to claim 2, wherein: the side part or the top of the second piston (7.2) is provided with an ignition powder (7.6), and the inner wall of the starting shell (7.1) is provided with a friction layer (7.7).
4. An indirect fire extinguishing apparatus actuating mechanism according to claim 2, wherein: the first starting line (7.4) is of an electric ignition head structure.
5. An indirect fire extinguishing apparatus actuating mechanism according to claim 2 or 4, wherein: the second starting line (7.5) is of a thermosensitive line structure.
6. An indirect fire extinguishing apparatus actuating mechanism according to claim 2, wherein: the second piston (7.2) is of a metal structure, two sides of the rear end of the starting shell (7.1) are provided with leads (7.8), and the leads (7.8) are connected with the feedback mechanism.
7. An indirect fire extinguishing apparatus actuating mechanism according to claim 2, wherein: the main gas generating agent (6) is arranged in the medicament bin (13), and the medicament bin (13) is communicated with the front end of the starting shell (7.1).
8. An indirect starting mechanism for a fire extinguishing apparatus according to claim 1, wherein: the rear end of the starting shell (7.1) is also provided with an insulating sealing plug (7.9).
9. An indirect starting mechanism for a fire extinguishing apparatus according to claim 1, wherein: the main gas generating agent (6) and the secondary gas generating agent (7.3) are both aerosol generating agents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320740902.3U CN220070578U (en) | 2023-04-06 | 2023-04-06 | Indirect starting mechanism of fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320740902.3U CN220070578U (en) | 2023-04-06 | 2023-04-06 | Indirect starting mechanism of fire extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220070578U true CN220070578U (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320740902.3U Active CN220070578U (en) | 2023-04-06 | 2023-04-06 | Indirect starting mechanism of fire extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220070578U (en) |
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2023
- 2023-04-06 CN CN202320740902.3U patent/CN220070578U/en active Active
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