CN112933464B - Smoke-proof diversion water curtain system and smoke-proof method for building fire - Google Patents

Smoke-proof diversion water curtain system and smoke-proof method for building fire Download PDF

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Publication number
CN112933464B
CN112933464B CN202110298120.4A CN202110298120A CN112933464B CN 112933464 B CN112933464 B CN 112933464B CN 202110298120 A CN202110298120 A CN 202110298120A CN 112933464 B CN112933464 B CN 112933464B
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smoke
water
fire
water curtain
driving motors
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CN112933464A (en
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龚红卫
蒋军成
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Nanjing Tech University
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Nanjing Tech University
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0214Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires for buildings or installations in fire storms
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C2/00Fire prevention or containment
    • A62C2/06Physical fire-barriers
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C2/00Fire prevention or containment
    • A62C2/06Physical fire-barriers
    • A62C2/08Water curtains
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Special Wing (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The invention provides a smoke-proof diversion water curtain system and a smoke-proof method for a building fire, wherein the ground, a water storage tank arranged on the ground, fireproof door sleeves arranged on walls at two ends of the water storage tank and a fire control controller arranged on a wall at one side of the device are arranged, an installation box is arranged on one side of the top of the fireproof door sleeve, a water supply pipe is arranged in the installation box, a rotating roller is connected with a flow equalization device through a rigid diversion body, a group of flexible diversion bodies are arranged on the rotating roller through a pressing plate, a grid is arranged at the top of the water storage tank, a magnetic strip is arranged in the middle of the upper surface of the grid, and the bottom of a magnet is adsorbed in the middle of the upper side of the magnetic strip.

Description

Smoke-proof diversion water curtain system and smoke-proof method for building fire
Technical Field
The invention relates to the technical field of smoke prevention of high-rise building fires, in particular to a smoke prevention diversion water curtain system and a smoke prevention method for building fires.
Background
The characteristics of the high-rise building determine that the high-rise building has high fire hazard. The concrete steps are as follows: the fire disaster generates a lot of smoke, the evacuated people are more, the fire disaster is more in distress, the toxicity of the smoke is high, the fire spread is fast, the smoke spread is fast, the personnel are difficult to evacuate, and the fire is difficult to extinguish. Thus, in the event of a fire, the aggregate casualties lose weight. The fire statistics of the high-rise buildings at home and abroad show that: of those dead from fire, most are fumigated, with a proportion of more than about 75%. The main cause of casualties is that people in high-rise buildings cannot be evacuated in time and die due to choking of smoke.
When a fire disaster occurs, the stairwell of the high-rise building becomes a main channel for vertical safe evacuation, if smoke is not controlled, the vertical diffusion speed of the smoke can exceed 3-4 m/s, and the high-rise building with 100m only needs 0.5min, so that the smoke can be diffused from the bottom layer to the top layer. The stairwell front room of the high-rise building is required to be fireproof and smoke-proof, and has the function of safe evacuation of personnel.
In order to prolong the evacuation time, prevent the smoke from invading the antechamber, reduce the casualties and ensure the smooth evacuation channel. At present, the smoke prevention modes in the stairway or the front room at home and abroad are as follows:
(1) Natural smoke discharging mode: the smoke discharging mode of the openable outer window or balcony, concave corridor or smoke discharging shaft or air inlet shaft is utilized. Is influenced by factors such as outdoor wind direction, wind speed, air flow and the like. The smoke discharging efficiency is unstable, and even smoke filling phenomenon in a stairwell or a front chamber can be caused, so that personnel evacuation is seriously influenced;
(2) The front chamber adopts a mechanical smoke discharging and natural air inlet mode: the smoke enters the front chamber and spreads to the stairwell along with the front chamber, which is not beneficial to the safe evacuation of personnel. The smoke is pumped away by a smoke exhaust fan, so that the smoke concentration of a protected area is reduced;
(3) The front room is mechanically pressurized and the smoke exhausting mode is adopted in a corridor: the front chamber is pressurized and supplied with air so that the front chamber of the stairwell has enough positive pressure. When a fire breaks out, it is difficult to maintain a sufficient positive pressure because the door is opened, and a large amount of fresh air flows into the door to promote the fire;
(4) Front room smoke feeding and discharging mode: when a fire disaster occurs, once the front chamber door is opened, smoke can still enter the chamber, and people are influenced to evacuate;
(5) Smoke-proof air curtain for high-rise building: the smoke-blocking device is arranged at the upper parts of the corridor and the front chamber door, the self-powered air curtain is large in size and difficult to arrange, the air inlet shaft is matched with the self-powered air curtain, the unpowered air curtain is provided with a power source by a layer-top fan, smoke prevention is carried out by connecting the air supply pipeline, and fresh air enters the corridor to play a role in supporting combustion;
(6) Fire-fighting water curtain: the main effect is fire prevention, and with the cigarette that hinders, and spout department need provide high pressure, and energy loss is great.
(7) Smoke-proof water curtain: the smoke-proof water curtain mainly has the effects of smoke prevention, but the smoke-proof water curtain can produce a transverse shrinkage effect and a longitudinal entrainment effect when working, and has an obstructing effect on the smoke-proof effect.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a circulating water curtain system for building fire, which can avoid the shrinkage and entrainment effects of a water curtain during use and improve the fireproof and smoke-proof effects.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the method comprises the steps of designing a smoke-proof diversion water curtain system and a smoke-proof method for a building fire disaster, wherein the ground, a water reservoir arranged on the ground, fireproof door sleeves arranged on walls at two ends of the water reservoir and a fire control controller arranged on a wall at one side of the device are arranged on the ground;
the water curtain generating device is arranged on the upper portion of the side wall of the fireproof door pocket through a support, the water curtain generating device comprises a flow stabilizer, a flow distribution device and a flow equalization device, the flow distribution device is arranged on the lower portion of the flow stabilizer, the flow equalization device is arranged on two sides of the distribution device, a fixing frame is arranged on the side wall of the fireproof door pocket and located on the lower side of the support, two driving motors are arranged on the fixing frame, two output shafts of the driving motors are connected through a rotating roller, the rotating roller is connected with the flow equalization device through a hard guide body, a group of flexible guide bodies are arranged on the rotating roller through a pressing plate, magnets are arranged at the bottoms of the flexible guide bodies, grids are arranged at the tops of the reservoirs, magnetic strips are arranged in the middle of the upper surfaces of the grids, the bottoms of the magnets are adsorbed on the middle of the upper sides of the magnetic strips, and the fire control controller is connected with the two driving motors through wires.
A smoke prevention method of a smoke prevention diversion water curtain for a building fire disaster comprises the following steps:
s1: when the temperature and smoke detector detects smoke, the fire control controller is utilized to start two driving motors, the two driving motors drive the rotating roller to rotate, a group of flexible current conductors on the rotating roller fall down, and when the bottom of the group of flexible current conductors falls to the upper part of the water reservoir, magnets at the bottom of the group of flexible current conductors are adsorbed on the magnetic strips in the middle of the grid;
s2: the fire control controller controls the water supply device to supply water to the water curtain generating device through the water supply pipe, the water flows into the rigid current guide body through the current stabilizer, the flow distribution device and the flow equalization device, the water flows onto the flexible current guide body through the rigid current guide body, and the water forms a water curtain on a group of flexible current guide bodies, so that the fireproof door pocket is in a sealing state, smoke in a corridor of a high-rise building can be effectively blocked, and the effect of cooling surrounding air is achieved;
s3: the water flows into the reservoir after passing through the flexible guide body and is finally discharged through the sewage drain.
S4: after fire is extinguished, the fire control controller is used for controlling the two driving motors, the two driving motors drive the rotating roller to rotate, and the flexible diversion body is wound and retracted onto the rotating roller.
Preferably, two ends of the rotating roller are respectively connected with two driving motors through a coupler.
Preferably, a temperature and smoke detector is arranged on the side wall of the fireproof door pocket, and the temperature and smoke detector is connected with the fire control controller through a wire.
Preferably, the side wall of the water supply pipe, which is positioned at the inner side of the installation box, is provided with a pressure gauge, a filter and a flow control valve, and the pressure gauge and the flow control valve are connected with the fire control controller through wires.
Preferably, the support column is installed on the fixing frame, the bearing is installed on the support column, and two ends of the rotating roller are respectively inserted into the bearing.
Preferably, a sewage drain is arranged at the bottom of the water reservoir.
Preferably, the flexible current conductor is of a cylindrical structure, and sealing strips are symmetrically arranged on the side walls of the flexible current conductor.
The smoke-proof diversion water curtain system and the smoke-proof method for the building fire disaster provided by the invention have the beneficial effects that: through setting up the flexible conductor between the fireproof door pocket, when the conflagration takes place, the flexible conductor drives the rotor roll through the motor and falls the flexible conductor to the grid on cistern upper portion, makes the magnet of flexible conductor bottom adsorb on the entry at grid middle part, can effectually avoid smog to pass the fireproof door pocket, improves the security of using, guarantees that hydroenergy forms the water curtain on the flexible conductor, can effectually separate the flue gas in the high-rise building corridor to play the effect of cooling surrounding air; the upper part of the fireproof door pocket is provided with the rotating roller, and the motor is used for driving the rotating roller to drive the flexible current-carrying body to move up and down, so that the fireproof door pocket is convenient to use, smoke can be effectively prevented from passing through the fireproof door pocket, the use safety is improved, the defect of the existing smoke prevention and discharge mode is thoroughly overcome, and the safety of personnel is ensured.
Drawings
FIG. 1 is a schematic diagram of a structure according to the present invention;
FIG. 2 is a schematic view of the portion A in FIG. 1;
FIG. 3 is a schematic view of the structure of the portion B of FIG. 1;
fig. 4 is a schematic view of a grid structure according to the present invention.
In the figure: roof 1, mounting box 2, delivery pipe 3, water curtain generating device 4, rigid conductor 5, current stabilizer 6, flow distribution device 7, flow straightener 8, support 9, temperature, smoke detector 10, fire door pocket 11, flexible conductor 12, blow off pipe 13, reservoir 14, ground 15, fire control controller 16, driving motor 17, magnetic stripe 18, grid 19, support column 20, shaft coupling 21, mount 22, rotating roller 23, sealing strip 24, magnet 25.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-4, the invention provides a smoke-proof diversion water curtain system and a smoke-proof method for a building fire, which comprises a ground 15, a water storage tank 14 arranged on the ground 15, fireproof door pocket 11 arranged on the walls at two ends of the water storage tank 14 and a fire control controller 16 arranged on one side wall of the device, wherein a temperature and smoke detector 10 is arranged on the side wall of the fireproof door pocket 11, and the temperature and smoke detector 6 is connected with the fire control controller 16 through a wire, so that the corridor environment can be monitored in real time, and the use safety is improved.
The top and the laminating of roof 1 of fire prevention door pocket 11, the inboard that roof 1 is located fire prevention door pocket 11 has been put installation box 2, be provided with delivery pipe 3 in the installation box 2, install manometer, filter and flow control valve on the lateral wall that delivery pipe 3 is located installation box 2 inboard, manometer and flow control valve pass through the wire and are connected with fire control controller 16, the one end and the water curtain generating device of delivery pipe 3 are connected, the other end and the water supply device that sets up in the device outside of delivery pipe 3 are connected.
The water curtain generating device is arranged on the upper part of the side wall of the fireproof door pocket 11 through the bracket 9, the water curtain generating device comprises a flow stabilizing device 4, a flow distribution device 6 and a flow equalizing device 7, the flow distribution device 6 is arranged on the lower part of the flow stabilizing device 4, the flow equalizing device 7 is arranged on two sides of the distribution device 6, a fixing frame (22) is arranged on the side wall of the fireproof door pocket (11) positioned on the lower side of the bracket (9),
the support column 20 is arranged on the fixing frame 22, the bearing is arranged on the support column 20, and two ends of the rotating roller 23 are respectively inserted into the bearing
The two driving motors 17 are arranged on the fixing frame 22, the output shafts of the two driving motors 17 are connected through the rotating roller 23, and two ends of the rotating roller 23 are respectively connected with the two driving motors 17 through the coupler 21, so that the operation is convenient.
The rotating roller 23 is connected with the flow equalization device 7 through a rigid flow guide body 5, a group of flexible flow guide bodies 12 are arranged on the rotating roller 23 through a pressing plate 8, the flexible flow guide bodies 12 are of cylindrical structures, sealing strips 19 are symmetrically arranged on the side walls of the flexible flow guide bodies 12, magnets 25 are arranged at the bottoms of the group of flexible flow guide bodies 12, a grid 19 is arranged at the top of the reservoir 14, a magnetic strip 18 is arranged at the middle part of the upper surface of the grid 19, the bottoms of the magnets 25 are adsorbed at the middle part of the upper side of the magnetic strip 18, a fire control controller 16 is connected with two driving motors 17 through wires, and a sewage drain pipeline 13 is arranged at the bottom of the reservoir 14.
A smoke prevention method of a smoke prevention diversion water curtain for a building fire disaster comprises the following steps:
s1: when the temperature and smoke detector 10 detects smoke, the fire control controller 16 is utilized to start the two driving motors 17, the two driving motors 17 drive the rotating rollers 23 to rotate, a group of flexible current conductors 12 on the rotating rollers 23 fall down, and when the bottom of the group of flexible current conductors 12 falls to the upper part of the reservoir 14, the magnets 25 at the bottom of the group of flexible current conductors 12 are adsorbed on the magnetic strips 18 in the middle of the grid 19;
s2: the fire control controller 16 controls the water supply device to supply water to the water curtain generating device through the water supply pipe 3, the water flows into the rigid current guide body 5 through the current stabilizer 4, the flow distribution device 6 and the current equalizer 7, the water flows onto the flexible current guide body 12 through the rigid current guide body 5, and the water forms a water curtain on one group of flexible current guide bodies 12, so that the fireproof door pocket 11 is in a sealing state, smoke in a corridor of a high-rise building can be effectively blocked, and the effect of cooling surrounding air is achieved;
s3: the water flows into the reservoir 14 after passing through the flexible current collector 12 and is finally discharged through the drain pipe 13.
S4: after the fire is extinguished, the fire control controller 16 is used for controlling the two driving motors 17, the two driving motors 17 drive the rotating roller 23 to rotate, and the flexible current guide body 12 is wound and retracted onto the rotating roller 23.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims (5)

1. The utility model provides a building conflagration smoke protection water conservancy diversion water curtain system, includes ground (15), sets up cistern (14) on ground (15), sets up fire prevention door pocket (11) on cistern (14) both ends wall and installs fire control controller (16) on a side wall, its characterized in that: the top of the fireproof door pocket (11) is attached to the roof (1), an installation box (2) is arranged on the inner side of the roof (1) positioned on the fireproof door pocket (11), a water supply pipe (3) is arranged in the installation box (2), one end of the water supply pipe (3) is connected with a water curtain generating device, and the other end of the water supply pipe (3) is connected with a water supply device arranged on the outer side of the device;
the water curtain generating device is arranged on the upper portion of the side wall of the fireproof door pocket (11) through a support (9), the water curtain generating device comprises a flow stabilizing device (4), a flow distribution device (6) and a flow equalization device (7), the flow distribution device (6) is arranged on the lower portion of the flow stabilizing device (4), the flow equalization device (7) is arranged on two sides of the flow distribution device (6), a fixing frame (22) is arranged on the side wall of the fireproof door pocket (11) and is positioned on the lower side of the support (9), two driving motors (17) are arranged on the fixing frame (22), output shafts of the two driving motors (17) are connected through rotating rollers (23), the rotating rollers (23) are connected with the flow equalization device (7) through hard conducting bodies (5), a group of flexible conducting bodies (12) are arranged on the rotating rollers (23) through pressing plates (8), a group of magnets (25) are arranged at the bottom of the flexible conducting bodies (12), a grid (19) are arranged on the top of the storage tank (14), two driving motors (18) are arranged on the upper surfaces of the middle portions (19), and the two driving motors (18) are connected with the middle portions of the magnetic strips (16) through the magnetic strips (16);
the flexible current carrier (12) is of a cylindrical structure, and sealing strips (24) are symmetrically arranged on the side wall of the flexible current carrier (12);
the side wall of the fireproof door pocket (11) is provided with a temperature and smoke detector (10), and the temperature and smoke detector (10) is connected with a fire control controller (16) through a wire;
a sewage drain pipe (13) is arranged at the bottom of the water reservoir (14).
2. A smoke-protection and water-diversion water curtain system for building fire as set forth in claim 1, wherein: two ends of the rotating roller (23) are respectively connected with two driving motors (17) through couplings (21).
3. A smoke-protection and water-diversion water curtain system for building fire as set forth in claim 1, wherein: the side wall of the water supply pipe (3) positioned at the inner side of the installation box (2) is provided with a pressure gauge, a filter and a flow control valve, and the pressure gauge and the flow control valve are connected with a fire control controller (16) through wires.
4. A smoke-protection and water-diversion water curtain system for building fire as set forth in claim 1, wherein: the support column (20) is installed on the fixing frame (22), the bearing is installed on the support column (20), and two ends of the rotating roller (23) are respectively inserted into the bearing.
5. A smoke protection method for a construction fire smoke protection diversion water curtain system according to claim 1, comprising the steps of:
s1: when the temperature and smoke detector (10) detects smoke, the fire control controller (16) is utilized to start two driving motors (17), the two driving motors (17) drive the rotating roller (23) to rotate, a group of flexible current conductors (12) on the rotating roller (23) fall down, and when the bottom of the group of flexible current conductors (12) falls to the upper part of the reservoir (14), a group of magnets (25) at the bottom of the flexible current conductors (12) are adsorbed on the magnetic strips (18) in the middle of the grid (19);
s2: the fire control controller (16) controls the water supply device to supply water to the water curtain generating device through the water supply pipe (3), the water flows into the rigid current guide body (5) through the current stabilizer (4), the flow distribution device (6) and the flow equalization device (7), the water flows onto the flexible current guide body (12) through the rigid current guide body (5), and the water forms a water curtain on a group of flexible current guide bodies (12), so that the fire door pocket (11) is in a sealing state, flue gas in a corridor of a high-rise building can be effectively blocked, and the effect of cooling surrounding air is achieved;
s3: the water flows into the reservoir (14) after passing through the flexible current guide body (12), and is finally discharged through the sewage drain pipe (13);
s4: after the fire is extinguished, the fire control controller (16) is used for controlling the two driving motors (17), the two driving motors (17) drive the rotating roller (23) to rotate, and the flexible current-conducting body (12) is wound and retracted onto the rotating roller (23).
CN202110298120.4A 2021-03-19 2021-03-19 Smoke-proof diversion water curtain system and smoke-proof method for building fire Active CN112933464B (en)

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CN112933464B true CN112933464B (en) 2023-12-29

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115487443B (en) * 2022-09-30 2023-08-22 应急管理部四川消防研究所 Tunnel full-section rapid blocking and fire extinguishing system and method under extreme fire

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Publication number Priority date Publication date Assignee Title
CN2510091Y (en) * 2001-12-30 2002-09-11 南京工业大学 Smoke-proof air curtain for high-rise building fire
CN202010380U (en) * 2011-03-30 2011-10-19 朱志强 Built-out movable firefighting and fire extinguishing water curtain system for high-rise building
CN202569247U (en) * 2012-05-23 2012-12-05 武汉大学 Combined type fireproofing and smoke isolating device
JP2017079949A (en) * 2015-10-26 2017-05-18 能美防災株式会社 Smoke protection device
CN107158600A (en) * 2017-06-08 2017-09-15 南京工业大学 Circulating water curtain smoke prevention system in high-rise building fire
CN207985112U (en) * 2018-04-26 2018-10-19 应路明 Naval vessel smoke proof screen
CN109138779A (en) * 2018-10-18 2019-01-04 罗铭亮 A kind of fire-proof smoke insulation door

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2510091Y (en) * 2001-12-30 2002-09-11 南京工业大学 Smoke-proof air curtain for high-rise building fire
CN202010380U (en) * 2011-03-30 2011-10-19 朱志强 Built-out movable firefighting and fire extinguishing water curtain system for high-rise building
CN202569247U (en) * 2012-05-23 2012-12-05 武汉大学 Combined type fireproofing and smoke isolating device
JP2017079949A (en) * 2015-10-26 2017-05-18 能美防災株式会社 Smoke protection device
CN107158600A (en) * 2017-06-08 2017-09-15 南京工业大学 Circulating water curtain smoke prevention system in high-rise building fire
CN207985112U (en) * 2018-04-26 2018-10-19 应路明 Naval vessel smoke proof screen
CN109138779A (en) * 2018-10-18 2019-01-04 罗铭亮 A kind of fire-proof smoke insulation door

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