CN111956996B - Fire fighting system - Google Patents
Fire fighting system Download PDFInfo
- Publication number
- CN111956996B CN111956996B CN202010851684.1A CN202010851684A CN111956996B CN 111956996 B CN111956996 B CN 111956996B CN 202010851684 A CN202010851684 A CN 202010851684A CN 111956996 B CN111956996 B CN 111956996B
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- Prior art keywords
- fire
- stairs
- guide pipe
- carbon monoxide
- pipe
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/06—Physical fire-barriers
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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
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
Abstract
The application relates to the technical field of fire fighting generally, in particular to a fire fighting system, which comprises a fire detector, a spraying device, a ventilation assembly arranged along stairs and a fire-proof roller shutter arranged at the stair openings of all floors, wherein the spraying device comprises a water supply pipeline, a driving piece, a guide pipe, a fire point recognizer and a first spray head arranged on the guide pipe, the guide pipe is hoisted, arranged and rotatably arranged on the water supply pipeline, the guide pipe is provided with a bending structure used for enabling the first spray head to incline and face downwards, the driving piece drives the guide pipe to rotate according to the fire point position information sent by the fire point recognizer so as to enable the first spray head to face the fire point position, the ventilation assembly comprises a fan, a ventilation pipe and a carbon monoxide sensor, the ventilation pipe is arranged along the stair armrest in an extending way and is provided with a plurality of air outlets, and the fan is opened according to the carbon monoxide concentration standard exceeding information sent by the carbon monoxide sensor, so as to convey air into the stairs and reduce the concentration of carbon monoxide in the stairs.
Description
Technical Field
The application relates to the technical field of fire fighting generally, and particularly relates to a fire fighting system.
Background
The fire alarm system is composed of trigger unit, fire alarm unit, linkage output unit and other auxiliary functional units, and features that in the initial stage of fire, the physical quantities such as smoke generated by combustion are converted into electric signals by fire detector and transmitted to fire alarm controller.
At present, most of fire protection systems in buildings are provided with fixed spray heads, the spray heads cannot position and extinguish fire on ignition points in a spraying mode, escape personnel often cannot escape due to the problems of high temperature in stairs, high carbon monoxide concentration and the like in the escape process, so that the escape opportunities are missed, and the stairs often become 'chimneys' of fires, and the spread of fire is promoted.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve at least one of the above technical problems, a primary object of the present application is to provide a fire fighting system.
In order to achieve the purpose of the invention, the following technical scheme is adopted in the application:
a fire fighting system comprises a spraying device, a ventilation assembly arranged along stairs and a fire-proof roller shutter arranged at the stair opening of each floor;
the spraying device comprises a water supply pipeline, a driving part, a guide pipe, a fire point identifier and a first spray head arranged on the guide pipe, the guide pipe is hoisted and arranged and rotatably arranged on the water supply pipeline, the guide pipe is provided with a bending structure used for enabling the first spray head to incline and face downwards, the driving part is in transmission connection with the guide pipe, and the driving part drives the guide pipe to rotate according to fire point position information sent by the fire point identifier so as to enable the first spray head to face the fire point position;
the ventilation assembly comprises a fan, a ventilation pipe and a carbon monoxide sensor, the ventilation pipe extends along a stair handrail, the fan is arranged at an outdoor air inlet of the ventilation pipe, the ventilation pipe is provided with a plurality of air outlets, and the fan is started according to the carbon monoxide concentration standard exceeding information sent by the carbon monoxide sensor so as to convey air into the stair;
the fireproof roller shutter is used for preventing smoke and flame from entering a staircase, the fireproof roller shutter is provided with a temperature sensor and a smoke sensor, and the fireproof roller shutter is opened according to temperature exceeding information sent by the temperature sensor or smoke exceeding information sent by the smoke sensor so as to reduce the speed of spreading the smoke and fire into the staircase;
the fire fighting system further comprises a fire detector, an electromagnetic valve is arranged in the guide pipe, and the fire detector controls the electromagnetic valve to be opened according to the detected fire information.
Further, in an embodiment of the present invention, the driving member is drivingly connected to the guiding tube through a gear structure engaged with each other.
Further, in an embodiment of the present invention, the fire fighting system further includes a fire protection audible and visual alarm, the fire protection audible and visual alarm is electrically connected to the fire detector, and the fire detector is provided with a communication module for sending a fire signal.
Further, in an embodiment of the present invention, the fire fighting system further includes a mobile terminal, and the mobile terminal is configured to receive the fire information sent by the communication module.
Further, in an embodiment of the present invention, the fire-proof rolling curtain includes a motor, a winding shaft, a fire-proof cloth, and a gravity rod;
the motor is connected with the scroll, one end of the fireproof cloth is connected with the scroll, and the other end of the fireproof cloth is connected with the gravity rod.
Further, in an embodiment of the present invention, the fire-proof rolling shutter further includes a mounting bracket, the motor is fixed to the mounting bracket, and the winding shaft is rotatably mounted to the mounting bracket through a bearing;
the mounting bracket is further provided with a second spray head communicated with the water supply pipeline, and the second spray head is used for spraying water towards the fireproof cloth.
Further, in an embodiment of the present invention, each step corresponds to one of the air outlets, and the air outlet faces the sidewall surface of the stair.
Further, in an embodiment of the present invention, a vertical distance between the air outlet and the stairs is in a range of 0.2m to 0.4m, and a vertical distance between each air outlet and the stair surface is the same.
Further, in an embodiment of the present invention, the side wall surface of each stair section is provided with one carbon monoxide sensor, and the carbon monoxide sensor is vertically spaced from the stair section by 0.4 m.
Further, in an embodiment of the present invention, the fire fighting system further includes a fire detector, a solenoid valve is disposed in the guide pipe, and the fire information detected by the fire detector controls the solenoid valve to open.
According to the technical scheme, the fire fighting system has the advantages and positive effects that:
the fire point is fixed a position and is sprayed pertinently, improves the efficiency of putting out a fire, eliminates the chimney effect of stair, reduces the interior carbon monoxide concentration of stair, prevents that the intensity of a fire from stretching to the stair in, guarantees that the personnel of fleing flees from the stair.
The fire fighting system comprises a fire detector, a spraying device, a ventilation assembly arranged along the stairs and a fire-proof roller shutter for being installed at the stair openings of all floors, the spraying device comprises a water supply pipeline, a driving piece, a guide pipe, a fire point recognizer and a first spray head installed on the guide pipe, the guide pipe is hoisted, arranged and rotatably installed on the water supply pipeline, the guide pipe is provided with a bending structure for enabling the first spray head to incline and face downwards, the driving piece is in transmission connection with the guide pipe, the driving piece drives the guide pipe to rotate according to fire point position information sent by the fire point recognizer so as to enable the first spray head to face towards the fire point position, the ventilation assembly comprises a fan, a ventilation pipe and a carbon monoxide sensor, the fan is arranged at an outdoor air inlet of the ventilation pipe, and is provided with a plurality of air outlets, the fan basis the carbon monoxide concentration that the carbon monoxide sensor sent exceeds standard information opens to carry the air in to the stair, the fire prevention roll screen is used for blockking flue gas and flame and gets into the stair, temperature sensor and smoke transducer are installed to the fire prevention roll screen, the fire prevention roll screen basis according the temperature that temperature sensor sent exceeds standard information or the flue gas that smoke transducer sent exceeds standard information opens, flee from the stair in order to guarantee personnel of fleing, fire extinguishing system still includes fire detector, be provided with the solenoid valve in the guide tube, fire detector is according to the fire information control that detects the solenoid valve is opened.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic diagram of a fire protection blind configuration of a fire protection system according to an exemplary embodiment.
FIG. 2 is a schematic illustration of a length of an in-step ventilation tube installation of a fire protection system according to an exemplary embodiment.
FIG. 3 is a partial block diagram of a sprinkler assembly of a fire protection system according to an exemplary embodiment.
Wherein the reference numerals are as follows:
110-water supply line; 120-a drive member; 130-a guide tube; 140-a first showerhead;
210-a motor; 220-a reel; 230-fireproof cloth; 240-gravity bar; 250-a second showerhead; 260-mounting a bracket;
310-a vent-pipe; 320-air outlet; 330-carbon monoxide sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
With reference to fig. 1-3, the present disclosure provides a fire fighting system, which includes a fire detector, a spraying device, a ventilation assembly disposed along a staircase, and a fire-proof roller shutter installed at a staircase entrance of each floor;
as shown in fig. 3, the spraying device includes a water supply pipeline 110, a driving member 120, a guide pipe 130, a fire point identifier and a first spray head 140 mounted on the guide pipe 130, the guide pipe 130 is hoisted and mounted on the water supply pipeline 110 in a rotating manner, the guide pipe 130 has a bending structure for enabling the first spray head 140 to incline and face downwards, an electromagnetic valve is arranged in the guide pipe 130, a fire detector is electrically connected with the electromagnetic valve, the fire detector controls the electromagnetic valve to open according to detected fire information, the driving member 120 is connected with the guide pipe 130 in a driving manner, the driving member 120 drives the guide pipe 130 to rotate according to the fire point position information sent by the fire point identifier, and the first spray head 140 faces towards the fire point position, so as to accurately extinguish the fire point.
Fire extinguishing system still includes fire control audible-visual annunciator, fire detector is even connected to fire control audible-visual annunciator electricity, and fire signal that fire detector sent is received to fire control audible-visual annunciator, and fire control audible-visual annunciator reports to the police according to fire signal, and fire extinguishing system still includes mobile terminal, and communication module is installed to fire detector, and communication module is used for sending fire signal, and mobile terminal is used for receiving the fire information that communication module sent to make user, building manager in time learn the emergence of conflagration.
In this embodiment, the first nozzle 140 is a direct-spraying structure, and a flaring structure is disposed at one end of the first nozzle 140 for spraying water, so as to widen the spraying range of the first nozzle 140. In this embodiment, the angle formed by the inclined bending direction of the guiding tube 130 and the vertical direction is between 30 ° and 50 °, so as to reduce the fire extinguishing dead angle as much as possible while ensuring the fire extinguishing range of the first nozzle 140, the driving element 120 may be a motor 210, the driving element 120 is in transmission connection with the guiding tube 130 through a mutually meshed gear structure, the mutually meshed gear structure includes a gear a and a gear B, the gear a is connected with the guiding tube 130, and the gear B is connected with the driving element 120.
The ventilation assembly comprises a fan, a ventilation pipe 310 and a carbon monoxide sensor 330, one end of the ventilation pipe 310 is arranged outside a building, the other end of the ventilation pipe 310 extends along a stair handrail, the ventilation pipe 310 can be installed on the stair handrail, the fan is arranged at an air inlet of the ventilation pipe 310 located outdoors, the fan is used for conveying air into the ventilation pipe 310, the ventilation pipe 310 is provided with a plurality of air outlets 320, the air outlets 320 face the side wall surface of the stair, according to the moving form of escape personnel in the escape process, the vertical distance between each air outlet 320 and the stair is defined as h, the h range is 0.2m-0.4m, and the vertical distance between each air outlet 320 and the stair is the same. As shown in fig. 2, each step is provided with an air outlet 320, so that air can be better delivered to the evacuee, the concentration of carbon monoxide in the stairs can be reduced, and carbon monoxide poisoning of the evacuee can be avoided. The side wall surface of each stair section is provided with a carbon monoxide sensor 330, the carbon monoxide sensor 330 is 0.4m away from the vertical distance of the stair, and according to the physical characteristics of carbon monoxide, the carbon monoxide is lighter than oxygen, and the carbon monoxide concentration is lower when the carbon monoxide is closer to the ground.
Under the understanding of technical personnel in the field, fire extinguishing system can also set up the subassembly of discharging fume along stair, the subassembly of discharging fume includes smoke exhaust fan and the pipe of discharging fume, smoke exhaust fan connects the pipe of discharging fume, the pipe of discharging fume is fixed in the lateral wall of stair, and be close to the stair top, the calandria pipe is equipped with a plurality of smoking holes, smoking hole towards stair railing, smoke exhaust fan installs outdoors, after the conflagration takes place, smoke exhaust fan opens, smoke exhaust subassembly and ventilation assembly constitute the air that makes in the stair and outdoor air exchange circulation, guarantee the safety of personnel of fleing in the stair and flee. It should be noted that the smoke exhaust component and the ventilation component can not completely exhaust smoke in the stairs, but can reduce the concentration of carbon monoxide and smoke in the stairs as much as possible, so as to strive for escape time.
In the scheme, each air outlet 320 of the ventilation pipe 310 can be provided with an electromagnetic switch, each carbon monoxide sensor 330 is connected with all the electromagnetic switches in the corresponding stair sections, after a fire disaster occurs in a building, the air outlet 320 in the stair section where smoke spreads is in an open state, and the air outlets 320 in the rest stairs are in closed states, so that the targeted ventilation is realized, and the air intake is ensured.
As shown in fig. 1, in this scheme, the fire prevention roll screen is used for stopping flue gas and flame from entering stairs, and the fire prevention roll screen is installed in the stair mouth department of every floor, and temperature sensor and smoke transducer are installed to the fire prevention roll screen, and the fire prevention roll screen is opened according to the temperature information that exceeds standard that temperature sensor sent or the flue gas information that exceeds standard that smoke transducer sent to reduce the speed that stretchs of flue gas and intensity of a fire to in the stairs. The fire-proof rolling curtain comprises a mounting bracket 260, a motor 210, a scroll 220, fire-proof cloth 230 and a gravity rod 240, the motor 210 is fixed on the mounting bracket 260, the scroll 220 is connected with the motor 210, the scroll 220 is rotatably mounted on the mounting bracket 260 through a bearing, one end of the fire-proof cloth 230 is connected with the scroll 220, the gravity rod 240 is connected with the other end of the fire-proof cloth 230, the weight of the fire-proof cloth 230 is light, the escape influence on escape personnel is small, a second spray head 250 communicated with a water supply pipeline 110 is further mounted on the mounting bracket 260, the second spray head 250 is used for spraying water towards the fire-proof cloth 230, the water flows downwards along the fire-proof cloth 230, hot gas and smoke are further prevented from spreading towards the interior of a stair, the escape safety of the stair is ensured, and the chimney effect of the stair is eliminated.
In conclusion, the scheme provides a fire fighting system, the fire fighting system includes a fire hazard detector, a spraying device, a ventilation assembly arranged along stairs and a fire-proof roller shutter for being installed at stairway openings of floors, the spraying device is provided with a guide pipe 130 rotatably arranged, the guide pipe 130 is provided with a first nozzle 140, a fire point recognizer recognizes a fire position, a driving piece 120 drives the guide pipe 130 to rotate according to fire point position information recognized by the fire point recognizer, so that the first nozzle 140 extinguishes fire towards the fire point, the ventilation assembly conveys air into the stairs, oxygen content in the stairs is improved, escape of escape personnel is guaranteed, the fire-proof roller shutter is installed at the stairway opening of each floor, the fire-proof roller shutter effectively blocks hot air and smoke from spreading into the stairs, escape safety of the stairs is guaranteed, and chimney effect of the stairs is eliminated.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A fire-fighting system is characterized by comprising a spraying device, a ventilation assembly arranged along stairs and a fire-proof roller shutter arranged at the stair opening of each floor;
the spraying device comprises a water supply pipeline, a driving part, a guide pipe, a fire point identifier and a first spray head arranged on the guide pipe, the guide pipe is hoisted and arranged and rotatably arranged on the water supply pipeline, the guide pipe is provided with a bending structure used for enabling the first spray head to incline and face downwards, the driving part is in transmission connection with the guide pipe, and the driving part drives the guide pipe to rotate according to fire point position information sent by the fire point identifier so as to enable the first spray head to face the fire point position;
the ventilation assembly comprises a fan, a ventilation pipe and a carbon monoxide sensor, the ventilation pipe and the carbon monoxide sensor are arranged along a stair handrail in an extending mode, the fan is arranged at an outdoor air inlet of the ventilation pipe, the ventilation pipe is provided with a plurality of air outlets, the fan is opened according to the carbon monoxide concentration overproof information sent by the carbon monoxide sensor so as to convey air to the stairs, each step corresponds to one air outlet, the air outlets face the side wall surface of the stairs, the vertical distance range between the air outlets and the stairs is 0.2m-0.4m, the vertical distance between each air outlet and the stair surface is the same, the fire fighting system further comprises a smoke exhaust assembly arranged along the stairs, the smoke exhaust assembly comprises a smoke exhaust fan and a smoke exhaust pipe, the smoke exhaust fan is connected with the smoke exhaust pipe, the smoke exhaust pipe is fixed on the side wall of the stairs and close to the top of the stairs, and the smoke exhaust pipe is provided with a plurality of smoke exhaust holes, the smoke suction hole faces towards the stair handrail;
the fireproof roller shutter is used for preventing smoke and flame from entering a staircase, the fireproof roller shutter is provided with a temperature sensor and a smoke sensor, and the fireproof roller shutter is opened according to temperature exceeding information sent by the temperature sensor or smoke exceeding information sent by the smoke sensor so as to reduce the speed of spreading the smoke and fire into the staircase;
the fire fighting system further comprises a fire detector, an electromagnetic valve is arranged in the guide pipe, and the fire detector controls the electromagnetic valve to be opened according to the detected fire information.
2. A fire fighting system as defined in claim 1, wherein the drive member is drivingly connected to the guide tube by intermeshing gear structures.
3. A fire fighting system as defined in claim 1, further comprising a fire protection audible and visual alarm electrically connected to the fire detector, the fire detector being equipped with a communication module for signaling a fire.
4. A fire fighting system as defined in claim 3, further comprising a mobile terminal for receiving fire information from the communication module.
5. A fire fighting system as defined in claim 1, wherein the fire curtain includes a motor, a reel, a fire cloth, and a gravity rod;
the motor is connected with the scroll, one end of the fireproof cloth is connected with the scroll, and the other end of the fireproof cloth is connected with the gravity rod.
6. A fire fighting system as defined in claim 5, wherein the fire curtain further includes a mounting bracket to which the motor is secured, the roller tube being rotatably mounted to the mounting bracket by a bearing;
the mounting bracket is further provided with a second spray head communicated with the water supply pipeline, and the second spray head is used for spraying water towards the fireproof cloth.
7. A fire fighting system as defined in claim 1, wherein one of said carbon monoxide sensors is provided on a side wall surface of each flight of stairs at a vertical distance of 0.4m from said stairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010851684.1A CN111956996B (en) | 2020-08-21 | 2020-08-21 | Fire fighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010851684.1A CN111956996B (en) | 2020-08-21 | 2020-08-21 | Fire fighting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111956996A CN111956996A (en) | 2020-11-20 |
| CN111956996B true CN111956996B (en) | 2022-04-15 |
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| CN202010851684.1A Active CN111956996B (en) | 2020-08-21 | 2020-08-21 | Fire fighting system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915427B (en) * | 2021-02-05 | 2022-08-12 | 安徽育求消防科技有限公司 | Electric automobile charging pile fire prevention method and fire prevention controller |
| CN112918303A (en) * | 2021-02-05 | 2021-06-08 | 安徽育求消防科技有限公司 | Fireproof electric automobile charging pile and intelligent fireproof charging station |
| CN113398516A (en) * | 2021-06-29 | 2021-09-17 | 苏州拓新安全技术有限公司 | Dust-free room fire-fighting system and fire-fighting method |
| CN215443802U (en) * | 2021-07-02 | 2022-01-07 | 梁雄飞 | Rolling fire-proof device for preventing fire spreading |
| CN115212496B (en) * | 2022-07-29 | 2023-05-02 | 应急管理部四川消防研究所 | Curtain formula fire prevention shutoff system is rolled up in converter station valve hall |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140787A (en) * | 1995-07-20 | 1997-01-22 | 张晓勋 | Smokeproof staircase for business hall of high-rise department stores |
| CN203820244U (en) * | 2014-03-03 | 2014-09-10 | 陈仁多 | Additional connected escape system of original high-rise building |
| CN205259908U (en) * | 2015-12-25 | 2016-05-25 | 沈阳金天时防火卷帘门有限公司 | Automatic change fireproof rolling shutter door |
| CN207892510U (en) * | 2017-12-12 | 2018-09-21 | 江西洪门实业集团有限公司 | A kind of highly practical rolling screen door |
| CN207804841U (en) * | 2017-12-20 | 2018-09-04 | 福建迎盛消防科技有限公司 | A kind of sprinkler tip with remote control function |
| CN207919942U (en) * | 2018-02-06 | 2018-09-28 | 杨澍 | A kind of teaching building fire-fighting guardrail |
| CN108905032A (en) * | 2018-07-02 | 2018-11-30 | 安徽西曲智能科技有限公司 | A kind of building intelligent fire-fighting system |
| KR101995986B1 (en) * | 2019-05-30 | 2019-07-03 | 주식회사 중앙기술단 | Fire-fighting apparatus for easy suppressing fire |
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2020
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