CN110251870A - A kind of stored-pressure type extinguishing device and its extinguishing method - Google Patents
A kind of stored-pressure type extinguishing device and its extinguishing method Download PDFInfo
- Publication number
- CN110251870A CN110251870A CN201910648053.7A CN201910648053A CN110251870A CN 110251870 A CN110251870 A CN 110251870A CN 201910648053 A CN201910648053 A CN 201910648053A CN 110251870 A CN110251870 A CN 110251870A
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- fire
- valve body
- extinguishing
- stored
- control terminal
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000002360 explosive Substances 0.000 claims abstract description 22
- 238000001931 thermography Methods 0.000 claims abstract description 14
- 230000008033 biological extinction Effects 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 3
- 239000003814 drug Substances 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000011897 real-time detection Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract 2
- 230000006870 function Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
Landscapes
- 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 a kind of stored-pressure type extinguishing devices, the extinguishing device includes fire-suppression bottle, electro explosive device, valve body, siphon pipe, fire extinction pipeline, controller end, cable assembly, flame detector, infrared thermal imaging detector, temperature, pressure detector, and extinguishing agent storage is in fire-suppression bottle；Electro explosive device is connected through a screw thread with valve body；Valve body is connected through a screw thread with fire-suppression bottle, and realizes that tank body seals；Nitrogen or air are stored in the seal cavity that extinguishing chemical, fire-suppression bottle, siphon pipe and valve body are formed；Diaphragm sealing type diaphragm sealing type valve body side is equipped with pressure gauge；Valve body is connect by screw thread with siphon pipe, and valve body is connect with fire extinction pipeline；Control terminal is equipped with infrared thermal imaging detector, temperature, pressure detector, flame detector, and cooperation extinguishing method makes the present apparatus not only and have many advantages, such as convenient and efficient, safe and efficient, but also repeatedly effectively fire extinguishing may be implemented.
Description
Technical field
The present invention relates to technical field of fire control, and in particular to a kind of stored-pressure type extinguishing device and its extinguishing method.
Background technique
Country's automatic fire extinguisher is still in infancy at present, and there are many problems:
1) most of automatic fire extinguisher cannot achieve repeatedly effectively fire extinguishing in fire extinguishing；
2) most of automatic fire extinguisher is using the detection spirit such as wire type heat detector, heat detector, smoke detector
Sensitivity is poor.It is a small amount of to use single ultraviolet detector as probe unit, it can not resist in actual use strong in environment
The interference of the various types of light sources such as light, dim light, flash lamp, and Processing Algorithm is not perfect, leads to easily occur self-extinguishing dress when in use
Set malfunction；
3) most of automatic fire extinguisher fault-free self-diagnostic function, after causing automatic fire extinguisher components to go wrong
It cannot the processing of discovery in time；
4) most of automatic fire extinguisher after leading to vehicle fire, may not be used without system operation data store function
Data and image for the analysis of causes；
5) most of automatic fire extinguisher is only controlled by button without display port, leads to system alarm at present
Shi Buneng determines protection zone actual state in time, easily causes erroneous judgement；
6) automatic fire extinguisher fire-suppression bottle feedback signal is single at present, is difficult in the case where not checking fire-suppression bottle pressure gauge
Determine that the state (empty bottle, failure bottle, normal bottle) of fire-suppression bottle is based on above-mentioned cognition, a new intelligent fire extinguishing system is needed to solve
Certainly problem above.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of stored-pressure type extinguishing device and its extinguishing methods.
In order to solve the above-mentioned technical problem, the technical scheme is that, a kind of stored-pressure type extinguishing device, including several
The inside of fire-suppression bottle filled with nitrogen and extinguishing chemical, the fire-suppression bottle is equipped with siphon pipe, the fire-suppression bottle and the fire extinguishing being equipped with
Pipeline connects, and the fire extinction pipeline passes through the valve body being equipped with and connects with the siphon pipe；The valve body is equipped with
Electro explosive device for fire-suppression bottle to be connected with the fire extinction pipeline.
As the preferred technical solution of the present invention: the left side of the valve body is equipped with the connecting hole for installing pressure gauge, and
It is equipped with the mounting hole of electro explosive device in the upper end of valve body, and is equipped with the screw thread connecting with the fire extinction pipeline on the right side of valve body
The lower end in hole, the valve body is equipped with male-pipe, and the outside of the male-pipe is connect with the fire-suppression bottle, the external screw thread
The inside of pipe is threadedly coupled with the siphon pipe.
As the preferred technical solution of the present invention: the top of the valve inner is equipped with diaphragm, and below the diaphragm
Valve body in be equipped with spool.
As the preferred technical solution of the present invention: the electro explosive device includes shell, and the lower end of the shell is equipped with and institute
The connector of valve body screw thread connection is stated, and the inside of the shell is equipped with medicament storehouse and acting storehouse, is equipped with T inside the acting storehouse
Shape striker, and spring is cased on T shape striker.
As the preferred technical solution of the present invention: filled with the detonating agent electrically activated inside the medicament storehouse.
As the preferred technical solution of the present invention: further including control terminal, the control terminal passes through the total ingredient of cable being equipped with
It is not electrically connected with the temperature, pressure detector being equipped with, the flame detector being equipped with, the infrared thermal imaging detector being equipped with.
As the preferred technical solution of the present invention: the control terminal includes shell, the inside of the shell be equipped with controller,
Memory, and the shell of the shell is equipped with the display screen being electrically connected with the controller, memory, display information switches
Button, from inspection button, manual actuation of button, acoustic-optic alarm.
A kind of extinguishing method of stored-pressure type extinguishing device, it is characterised in that: include the following steps,
S1, temperature, pressure detector, flame detector, infrared thermal imaging detector believe the temperature of protection zone, flame
Number, temperature field information carry out real-time detection, and it is temperature data, flame information, protection zone temperature field infrared picture data is real
When feed back to control terminal；Control terminal carries out real-time state monitoring, and storage state monitoring information to each assembly of fire extinguishing system simultaneously,
Each assembly state is shown by display screen simultaneously.
S2, control terminal analyze and determine temperature data, flare up fire, protection zone temperature field infrared picture data,
And data, image information are saved；
S3, control terminal handle after obtaining fire alarm data, image information, by fire alarm by display screen issue acousto-optic and
Word alarm, while monitor supervision platform is transferred to by cable assembly, and enabling signal is issued to electro explosive device by cable assembly；
When S4, electro explosive device receive control terminal output enabling signal, the medicament in medicament storehouse is lighted, high pressure gas is generated
Body after pushing striker downlink quickly to puncture diaphragm, is promoted rapidly, and valve body upper cavity pressure is let out by the outspoken speed that punctures on diaphragm
It puts, spool is lifted up, and valve body releases extinguishing chemical outward and completes fire-fighting work.
Beneficial effects of the present invention compared with the prior art: 1. intelligent fire extinguishing systems of the invention are visited using temperature, pressure
Survey device, infrared thermal imaging have combinations of detectors detection, securely and reliably；
2. intelligent fire extinguishing system of the invention has detection data and protection zone temperature field infrared image store function,
Data supporting is provided for subsequent fire protection design and statistical analysis, and the infrared thermal imaging detector being arranged can be with real-time detection
Temperature field in protection zone, and warning message is passed in 0.6s by control according to the pre-alarm value of setting and main alarming value
End.
3. intelligent fire extinguishing system of the invention is, it can be achieved that repeatedly fire extinguishing.
4. intelligent fire extinguishing system of the invention, has automatic diagnostic function, control terminal carries out each assembly of fire extinguishing system real
When status monitoring, and storage state monitoring information, while showing each assembly state by display screen is convenient for system maintenance.
5. the power device of extinguishing device of the invention uses electric control, there is manually and automatically two kinds of operating conditions, Yong Huke
According to actual scene, operating condition is set.
Detailed description of the invention
Fig. 1 is agent structure schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of control terminal；
Fig. 3 is the structural schematic diagram of electro explosive device；
Fig. 4 is the structural schematic diagram of valve body.
In figure: 1, control terminal；2, cable assembly；3, temperature, pressure detector；4, flame detector；5, infrared thermal imaging is visited
Survey device；6, siphon pipe；7, mounting hole；8, fire-suppression bottle；9, fire extinction pipeline；14, connecting hole；15, diaphragm；16, valve body；17, electric detonation
Device；18, spool；19, threaded hole；21, male-pipe；25, shell；26, acoustic-optic alarm；27, manual actuation of button；
28, from inspection button；29, display information switching push button；30, display screen；31, connector；32, shell；33, medicament storehouse；34,
Spring；35, T shape striker；36, acting storehouse.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.In this hair
In bright description, it is to be understood that the orientation or positional relationship of the instructions such as term " on ", "lower", "front", "rear" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the present invention
Limitation.In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate with each other；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
Fig. 1-4 is please referred to, the present invention provides following examples, present embodiments provides a kind of stored-pressure type extinguishing device, wraps
It includes control terminal 1, cable assembly 2, temperature, pressure detector 3, flame detector 4, infrared thermal imaging detector 5, siphon pipe 6, go out
Fiery bottle 8, valve body 16, valve body 16 and fire-suppression bottle 8 are connected through a screw thread, and form seal cavity, extinguishing agent storage valve body 16 with
Fire-suppression bottle 8 formed seal cavity in, controlling terminal 1 by cable assembly 2 respectively with detector assembly, valve body 16, external power supply
And control centre's connection, control terminal 1 are made of controller, memory, display screen 30, combined aural and visual alarm 26, hand starting button.Line
Cable assembly 2 includes power supply line, detection line, starting line, feedback line.Valve body 16 is equipped with the threaded hole 19 of installation siphon pipe, installation
The connecting hole 14 of FD-801K digital pressure control table, the mounting hole 7 for installing electric detonation electro explosive device 17, siphon pipe 6, electro explosive device
17 are connect by screw thread with valve body 16；When electro explosive device 17 receives the output enabling signal of control terminal 1, the medicine of electro explosive device 17
Medicament igniting in agent storehouse 33 generates high pressure gas, after pushing 35 downlink of T shape striker quickly to puncture diaphragm 15, is promoted rapidly, valve
16 upper cavity pressure of body is released by the outspoken speed that punctures formed on diaphragm 15, and spool 18 is lifted up, and releases extinguishing chemical outward；FD-
801K digital pressure control table has the function of that pressure anomaly feedback alarm, infrared thermal imaging detector 5 carry out protection zone real
When temperature field data acquire and be delivered to control terminal 1, control terminal 1 acquires data to infrared thermal imaging detector 5 and carries out logic
It analyzes and determines, and storage protection region infrared thermal imaging image, while protection zone temperature is shown by the display screen 30 of control terminal 1
Field picture information is spent, and inputs main alarming value and pre-alarm value in control terminal 1, wherein main alarming value is 200 degrees Celsius, forecast
Alert value is 150 degrees Celsius；When determining that fire behavior occurs in protection zone, sound and light alarm signal is issued, while exporting to electro explosive device 17
Enabling signal, temperature, pressure detector 3 carry out the acquisition of real time temperature information data to protection zone and are delivered to control terminal 1；Control
End 1 processed carries out logic analysis storage to temperature, pressure detector acquisition data, and analysis result is shown on the display 30, when
Determine that fire behavior occurs in protection zone, issues sound and light alarm signal, while enabling signal is exported to electro explosive device 17, extinguishing device can
Be set as needed multiple groups fire-suppression bottle 8, control terminal 1 can each 8 state of fire-suppression bottle of automatic identification, occur to directly drive when fire normal
Bottle group, and spray bottle group number can be determined according to detection information.
The extinguishing method of the pressure storing automatic fire extinguishing device of the present embodiment is as follows:
Temperature to protection zone of S1, temperature, pressure detector 3, flame detector 4, infrared thermal imaging detector 5, flame
Signal, temperature field information carry out real-time detection, and by temperature data, flame information, protection zone temperature field infrared picture data
Real-time Feedback is to control terminal 1；Control terminal carries out real-time state monitoring, and storage state monitoring letter to each assembly of fire extinguishing system simultaneously
Breath, while each assembly state is shown by display screen.
S2, control terminal 1 analyze and determine temperature data, flare up fire, protection zone temperature field infrared picture data,
And data, image information are saved；
S3, control terminal 1 handle after obtaining fire alarm data, image information, and fire alarm is issued acousto-optic by display screen
And word alarm, while monitor supervision platform is transferred to by cable assembly 2, and open the sending of electro explosive device 17 by cable assembly 2
Dynamic signal；
When S4, electro explosive device 17 receive the output enabling signal of control terminal 1, the igniting of medicament 33 is generated high in electro explosive device 14
Body of calming the anger is promoted rapidly, valve upper cavity pressure is punctured outspoken by diaphragm after promotion 35 downlink of T shape striker quickly punctures diaphragm
Speed is released, and spool is lifted up, and valve releases extinguishing chemical outward and completes fire-fighting work.
Above content is only citing made for the present invention and explanation, affiliated those skilled in the art are to being retouched
The specific embodiment stated does various modifications or additions or is substituted in a similar manner, and without departing from invention or surpasses
More range defined in the claims, is within the scope of protection of the invention.
Claims (8)
1. a kind of stored-pressure type extinguishing device, it is characterised in that: the fire-suppression bottle (8) of nitrogen and extinguishing chemical is filled with including several,
The inside of the fire-suppression bottle (8) is equipped with siphon pipe (6), and the fire-suppression bottle (8) connects with the fire extinction pipeline (9) being equipped with, and
The fire extinction pipeline (9) passes through the valve body (16) being equipped with and connects with the siphon pipe (6)；The valve body (16), which is equipped with, to be used
In the electro explosive device (17) that fire-suppression bottle (8) and the fire extinction pipeline (9) are connected.
2. a kind of stored-pressure type extinguishing device according to claim 1, it is characterised in that: the left side of the valve body (16) is equipped with
For installing the connecting hole (14) of pressure gauge, and in mounting hole (7) of the upper end of valve body (16) equipped with electro explosive device (17), and
The right side of valve body (16) is equipped with the threaded hole (19) connecting with the fire extinction pipeline (9), and the lower end of the valve body (16) is equipped with outer
Screwed pipe (21), and the outside of the male-pipe (21) is connect with the fire-suppression bottle (8), the inside of the male-pipe (21)
It is threadedly coupled with the siphon pipe (6).
3. a kind of stored-pressure type extinguishing device according to claim 1 or 2, it is characterised in that: valve body (16) inside
Top is equipped with diaphragm (15), and is equipped with spool (18) in the valve body (16) below the diaphragm (15).
4. a kind of stored-pressure type extinguishing device according to claim 1, it is characterised in that: the electro explosive device (17) includes outer
Shell (32), the lower end of the shell (32) are equipped with the connector (31) being threadedly coupled with the valve body (16), and the shell
(32) inside is equipped with medicament storehouse (33) and acting storehouse (36), is equipped with T shape striker (35) inside the acting storehouse (36), and in T
Spring (34) are cased on shape striker (35).
5. a kind of stored-pressure type extinguishing device according to claim 4, it is characterised in that: filling inside the medicament storehouse (33)
There is the detonating agent electrically activated.
6. a kind of stored-pressure type extinguishing device according to claim 1, it is characterised in that: further include control terminal (1), the control
End (1) processed passes through the flame detector that the cable assembly (2) that is equipped with temperature, pressure detector (3) be equipped with, is equipped with respectively
(4), the infrared thermal imaging detector (5) being equipped with is electrically connected.
7. a kind of stored-pressure type extinguishing device according to claim 6, it is characterised in that: the control terminal (1) includes shell
(25), the inside of the shell (25) is equipped with controller, memory, and the shell of the shell (25) is equipped with and the control
Device, memory be electrically connected display screen (30), display information switching push button (29), from inspection button (28), manually boot
Button (27), acoustic-optic alarm (26).
8. a kind of extinguishing method of stored-pressure type extinguishing device, it is characterised in that: include the following steps,
Temperature to protection zone of S1, temperature, pressure detector (3), flame detector (4), infrared thermal imaging detector (5), fire
Flame signal, temperature field information carry out real-time detection, and by temperature data, flame information, protection zone temperature field infrared image number
Control terminal (1) is fed back to when factually；Control terminal carries out real-time state monitoring to each assembly of fire extinguishing system simultaneously, and storage state is supervised
Measurement information, while each assembly state is shown by display screen.
S2, control terminal (1) analyze and determine temperature data, flare up fire, protection zone temperature field infrared picture data, and
Data, image information are saved；
S3, control terminal (1) handle after obtaining fire alarm data, image information, by fire alarm by display screen issue acousto-optic and
Word alarm, while it being transferred to monitor supervision platform by cable assembly (2), and send out electro explosive device (17) by cable assembly (2)
Enabling signal out；
When S4, electro explosive device (17) receive control terminal (1) output enabling signal, the medicament in medicament storehouse (33) is lighted, is generated
High pressure gas after pushing striker (35) downlink quickly to puncture diaphragm (15), is promoted rapidly, and valve body (16) upper cavity pressure passes through diaphragm
(15) the outspoken speed that punctures on is released, and spool (18) is lifted up, and valve body (16) releases extinguishing chemical outward and completes fire-fighting work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648053.7A CN110251870A (en) | 2019-07-18 | 2019-07-18 | A kind of stored-pressure type extinguishing device and its extinguishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648053.7A CN110251870A (en) | 2019-07-18 | 2019-07-18 | A kind of stored-pressure type extinguishing device and its extinguishing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110251870A true CN110251870A (en) | 2019-09-20 |
Family
ID=67926825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910648053.7A Pending CN110251870A (en) | 2019-07-18 | 2019-07-18 | A kind of stored-pressure type extinguishing device and its extinguishing method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111494860A (en) * | 2020-06-09 | 2020-08-07 | 山东中道消防设备有限公司 | Electric automatic fire extinguishing device |
| CN111659062A (en) * | 2020-05-16 | 2020-09-15 | 郑州神宇防火制品有限公司 | Opening structure, fire extinguishing device, fire-proof window and production process of fire-proof window |
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| JPH0910348A (en) * | 1995-06-28 | 1997-01-14 | Miyata Ind Co Ltd | Starting method and device for automatic fire extinguishing equipment for kitchen provided with plurality of fire extinguishing devices |
| CN205913681U (en) * | 2016-07-20 | 2017-02-01 | 湖南鸿腾新能源技术有限公司 | A container valve for extinguishing device |
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| CN107869509A (en) * | 2017-07-16 | 2018-04-03 | 湖南鸿腾新能源技术有限公司 | Valve nut, electric drive valve valve head and its electric drive valve |
| CN109289135A (en) * | 2018-09-11 | 2019-02-01 | 陕西安益机电有限公司 | A kind of intelligent fire-pretection system |
| CN210302141U (en) * | 2019-07-18 | 2020-04-14 | 安徽安瑞德自动化科技有限公司 | Pressure storage type fire extinguishing device |
-
2019
- 2019-07-18 CN CN201910648053.7A patent/CN110251870A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0910348A (en) * | 1995-06-28 | 1997-01-14 | Miyata Ind Co Ltd | Starting method and device for automatic fire extinguishing equipment for kitchen provided with plurality of fire extinguishing devices |
| CN205913681U (en) * | 2016-07-20 | 2017-02-01 | 湖南鸿腾新能源技术有限公司 | A container valve for extinguishing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111659062A (en) * | 2020-05-16 | 2020-09-15 | 郑州神宇防火制品有限公司 | Opening structure, fire extinguishing device, fire-proof window and production process of fire-proof window |
| CN111659062B (en) * | 2020-05-16 | 2021-06-25 | 郑州神宇防火制品有限公司 | Opening structure, fire extinguishing device, fire-proof window and production process of fire-proof window |
| CN111494860A (en) * | 2020-06-09 | 2020-08-07 | 山东中道消防设备有限公司 | Electric automatic fire extinguishing device |
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