WO2017016143A1 - Système de lutte contre le feu à mousse à air - Google Patents

Système de lutte contre le feu à mousse à air Download PDF

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Publication number
WO2017016143A1
WO2017016143A1 PCT/CN2015/097516 CN2015097516W WO2017016143A1 WO 2017016143 A1 WO2017016143 A1 WO 2017016143A1 CN 2015097516 W CN2015097516 W CN 2015097516W WO 2017016143 A1 WO2017016143 A1 WO 2017016143A1
Authority
WO
WIPO (PCT)
Prior art keywords
foam
supply system
fire extinguishing
air
water
Prior art date
Application number
PCT/CN2015/097516
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English (en)
Chinese (zh)
Inventor
胡翔
王靖
余正兵
Original Assignee
成都自能消防设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 成都自能消防设备有限公司 filed Critical 成都自能消防设备有限公司
Publication of WO2017016143A1 publication Critical patent/WO2017016143A1/fr

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • 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
    • A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam

Definitions

  • the present invention relates to fire extinguishing appliances, and more particularly to an integrated air foam fire extinguishing system including high pressure air, foam fire extinguishing agent and water as fire extinguishing medium.
  • the foaming multiple is an important indicator of the fire extinguishing efficiency of the system.
  • Active injection of high pressure air into the mixed foam liquid is an effective method to increase the foaming multiple of the foam fire extinguishing agent.
  • the suction distance of the vacuum suction air system is farther.
  • Existing compressed air foam fire extinguishing systems include fixed or mobile systems.
  • the fixed or mobile fire extinguishing system is mainly used to actively inject compressed air mixed with a foam mixture.
  • the compressed air source usually uses a high pressure air pump, and the system is complicated.
  • the present invention discloses a piggyback miniature integrated air foam fire extinguishing system according to the deficiencies of the prior art.
  • the problem to be solved by the present invention is to provide a water pipeline, a foam fire extinguishing agent, a foam liquid proportional mixing device, an electric drive fan, a foam spray gun, and the like integrated on a miniature knapsack structure, and can realize spraying according to the demand of a fire object.
  • An air-foam fire extinguishing medium that mixes water, foam, and air in a certain ratio to realize a piggyback micro air foam fire extinguishing system that uses an electric drive fan as an air source.
  • Air foam fire extinguishing system consisting of spray device, water supply system, gas supply system, foam supply system
  • the structure of the system and the piggyback structure which are characterized by:
  • the spraying device is connected to the water supply system, the gas supply system and the foam supply system; wherein: the water supply system power is provided by an external force, the gas supply system is a self-contained power supply system, and the foam supply system is powered by the water supply system to supply the foam mixture;
  • the spraying device is disposed on the knapsack structure, and includes: a fire extinguishing nozzle at the front end, a water, a foam, an air mixing device in the middle, and a medium inlet at the rear end.
  • the spraying device comprises: an air foam mixed liquid fire extinguishing nozzle disposed at the front end; an air inlet disposed at a rear end of the mixed liquid fire extinguishing nozzle; a fire extinguishing agent mixed liquid inlet and a fire extinguishing agent disposed at a center of the air inlet axis Mixing liquid outlet; set at the joint of the mixed liquid fire sprinkler and the air inlet, evenly spaced around the water jet oblique opening, the angle between the axis of the water jet oblique opening and the axis of the mixed liquid fire sprinkler is 17 to 30 degrees;
  • the port is in communication with the annular liquid chamber of the outer wall of the joint, the annular liquid chamber has a water inlet communicating with the water supply system; the fire extinguishant mixture inlet is in communication with the foam supply system, and the bypass water passage is provided at the water inlet of the annular liquid chamber to communicate with the foam supply system .
  • the gas supply system is disposed on the knapsack structure, including a two-stroke gasoline fan or an electric fan.
  • the foam supply system is disposed on the piggyback or movable structure, including a sequentially connected foam fire extinguishing agent storage tank, a check valve, a proportional control valve, a venturi injector, a venturi injector inlet and a water inlet setting
  • the waterway is connected, and the venturi ejector outlet is connected to the fire extinguishing agent mixture inlet.
  • the water supply system includes a fire truck, a ground fire hydrant or/and a hand lift pump water supply.
  • the water jet oblique opening of the present invention is arranged around 3 to 10.
  • the fire extinguishing agent mixed liquid inlet of the present invention is arranged in parallel with the bypass water passage, and the bypass water passage is located at the connection portion between the fire extinguishing agent mixed liquid inlet and the fire extinguishing gun tube wall.
  • the fire extinguishing agent mixture outlet of the present invention is located at the rear end of the water jet oblique opening.
  • the invention can be provided as a portable air jet foam fire extinguishing system. It consists of a foam fire extinguishing agent storage box, a bypass venturi ejector, a proportional control valve, and a hand-controlled injection device placed on the back frame, and supplies water through an external water supply source such as a water supply fire truck, a ground fire hydrant, and a hand lift pump. .
  • the external water supply source can be used in various forms, from 0.2mpa to 1.2mpa.
  • the water inlet bypass water passage flows to the venturi ejector to form a negative pressure through the proportional adjustment valve to draw a proportion of the fire extinguishing agent, and then through the venturi ejector outlet to the fire extinguishing agent mixture inlet, the fire extinguishing agent mixture
  • the outlet will squirt the fire-extinguishing agent jet and the oblique-hole jet of the external supply to form a negative pressure while atomizing.
  • a large amount of blower positive pressure blast air is taken in, so that the water, foam fire extinguishing agent and air are mixed according to the corresponding proportion. , spray 13 to 25 times of compressed air foam fire extinguishing medium.
  • the system of the invention adjusts the dryness of the foam according to the current situation of the fire field through the proportional control valve, and the system has a simpler structure, convenient operation and lower system equipment cost.
  • the invention relates to a piggyback miniature air foam fire extinguishing system which uses electric power to drive wind power, and designs a spray atomizing and pressurized air mixing system according to the characteristics of the ratio of the foaming multiple to the contact area of air and foam liquid.
  • the invention can be applied as a water fire extinguishing device when the foam fire extinguishing agent passage is not opened, and can be applied to various fire extinguishing environments after opening the foam fire extinguishing agent passage; the injection system has a better structure, and the spraying system realizes sufficient fire extinguishing agent and water.
  • the foam is mixed and further foamed under the driving of the driving wind, and the spraying distance is extended. Under the relatively difficult conditions of the fire field transportation, the system can be fully utilized for the purpose of light and easy movement and large-scale fire extinguishing at close range.
  • Each of the invention The system is easy to adjust, and the application efficiency and integration functions are greatly improved.
  • Figure 1 is a schematic view showing the connection principle of the system of the present invention
  • Figure 2 is a schematic structural view of the system of the present invention.
  • Figure 3 is a schematic cross-sectional view showing the structure of the spray device of the present invention.
  • A is the injection device
  • B is the foam supply system
  • C is the water supply system
  • D is the gas supply system
  • 1 is the fire truck
  • 2 is the fire hydrant
  • 3 is the hand lift pump
  • 4 is the water source
  • 5 is the foam fire extinguishing agent storage Box
  • 6 is a proportional control valve
  • 7 is a check valve
  • 8 is a venturi injector
  • 9 is a gasoline engine
  • 10 is a blower
  • 11 is a venturi injector outlet
  • 12 is a venturi injector inlet
  • 13 is a mixing device
  • 131 is a jet oblique port
  • 132 is an annular liquid chamber
  • 133 is a water inlet
  • 134 is a bypass water passage
  • 135 is a fire extinguishing agent mixture inlet
  • 136 is an air inlet
  • 137 is a fire extinguishing nozzle
  • 138 is a fire extinguishing agent mixed liquid outlet.
  • the air foam fire extinguishing system is composed of a spraying device A, a water supply system C, a gas supply system D and a foam supply system B, and the spraying device A is connected with the water supply system C, the gas supply system D and the foam supply system B, wherein: the water supply system C power Provided by external force, the gas supply system D is a self-contained power supply system.
  • the foam supply system B is supplied with a power supply foam mixture by the water supply system C;
  • the spraying device A is disposed on the knapsack structure, and includes: a front end fire extinguishing nozzle 137, a middle water, a foam, an air mixing device 13, and a media inlet at the rear end.
  • the invention discloses a spraying device A, comprising: an air foam mixed liquid fire extinguishing nozzle 137 disposed at the front end; an air inlet 136 disposed at the same axis as the mixed liquid fire extinguishing nozzle 137; and disposed at the axis of the air inlet 136 a central fire extinguishing agent mixture inlet 135 and a fire extinguishing agent mixture outlet 138; a water injection oblique opening 131 disposed at a joint portion of the mixed liquid fire extinguishing nozzle 137 and the air inlet 136, and a water jet oblique opening 131 axis and mixing
  • the liquid fire extinguishing nozzle 137 has an axial angle a of 17 to 30 degrees; the water jet oblique opening 131 communicates with the annular liquid chamber 132 of the outer wall of the joint portion, and the annular liquid chamber 132 has a water inlet 133 communicating with the water supply system; the fire extinguishing agent
  • the gas supply system D is disposed on the knapsack structure, including a two-stroke gasoline engine 9 and a blower 10.
  • the foam supply system B is disposed on the piggyback or movable structure, including the sequentially connected foam fire extinguishing agent storage tank 5, the check valve 7, the proportional regulating valve 6, the venturi injector 8, the venturi injector inlet 12 and the water
  • the bypass water passage 134 provided at the inlet 133 is in communication, and the venturi injector outlet 11 is in communication with the fire extinguishing agent mixture inlet 135.
  • the water supply system C of the present invention includes a fire truck 1, an above ground fire hydrant 2 or/and a hand lift pump 3 water supply device.
  • the water jet oblique opening 131 of the present invention can be arranged around 3 to 10. This example is six.
  • the fire extinguishing agent mixture inlet 135 is disposed in parallel with the bypass water passage 134, and the bypass water passage 134 is located
  • the fire extinguishing agent mixture inlet 135 is connected to the fire extinguishing tube wall.
  • FIG. 1 is a schematic view showing the connection principle of the system of the present invention
  • FIG. 2 is a schematic structural view of the system of the present invention
  • Fig. 1 shows the connection principle of the present invention, that is, the connection structure of each fire extinguishing agent passage
  • Fig. 2 is a schematic view showing the connection structure of each specific device which may be employed in the present invention.
  • the system consists of an injection device A, a water supply system C, a gas supply system D and a foam supply system B.
  • the injection device A is in communication with a water supply system C, a gas supply system D and a foam supply system B, wherein the water supply system C is powered by an external force.
  • the gas supply system D is a self-contained power supply system
  • the foam supply system B is powered by the water supply system C to supply the foam mixture through the venturi negative pressure supply.
  • Each system can be disposed on a movable structure such as a piggyback type.
  • FIG. 3 is a schematic cross-sectional view showing the structure of the spray device of the present invention.
  • the spraying device A of the present invention is a cylindrical empty tube structure, the front end of the empty tube is a fire extinguishing nozzle 137, the rear end is an air inlet 136, the middle part is a mixing chamber, and the middle part comprises a water jet inclined opening 131 disposed on the empty tube wall and arranged around.
  • the water injection oblique openings 131 are six, evenly spaced, and the angle between the axis of the water injection oblique opening 131 and the axis of the fire extinguishing nozzle 137 is 17 to 30 degrees, and the inlet ends of the water injection oblique openings 131 are
  • the annular liquid chamber 132 communicates, and the water pressure at the inlet end equalizes the water jet oblique openings 131 in the mixing chamber to form a cross jet collision and atomize, which can generate a larger negative pressure than the direct injection foam gun, and suck in more air.
  • the liquid atomization increases the contact area with the air, resulting in a higher expansion ratio.
  • the annular liquid chamber 132 communicates with the water inlet 133.
  • the structure is more compact, and the water inlet 133 is disposed in an oblique direction along the cylindrical hollow tube structure.
  • the axial center of the rear air inlet 136 is a fire extinguishing agent mixed liquid passage formed by the fire extinguishing agent mixed liquid inlet 135 and the fire extinguishing agent mixed liquid outlet 138, wherein the radial plane where the nozzle portion of the fire extinguishing agent mixed liquid outlet 138 is located is formed at the water jet oblique opening 131. Radial plane back end, This structure can form a better mixing effect, maximizing the foaming efficiency.
  • the fire extinguishing agent mixture inlet 135 and the fire extinguishing agent mixture outlet 138 constitute a fire extinguishing agent mixed liquid passage which is disposed in parallel with the bypass water passage 134, and the bypass water passage 134 is located at the joint portion of the fire extinguishing agent mixed liquid passage and the fire extinguishing gun tube wall.
  • the structure is more compact, and the input and output resistance of each medium is small and smoother.
  • the invention relates to a piggyback micro air foam fire extinguishing system with a wind turbine.
  • the invention designs a spray atomizing and pressurized air mixing system according to the characteristics that the foaming multiple 13 is proportional to the contact area of the air and the foam liquid.
  • the invention can be applied as a water fire extinguishing device when the foam fire extinguishing agent passage is not opened, and can be applied to various fire extinguishing environments after opening the foam fire extinguishing agent passage; the spraying device has a better structure, and the spraying device realizes the thorough mixing of the fire extinguishing agent and the water.
  • the foam is formed and further foamed under the driving of the driving wind, and the spraying distance is extended. Under the relatively difficult conditions of the fire field transportation, the purpose of the system is light and easy to move, and the large power fire extinguishing is realized at a short distance.
  • the systems of the present invention are easy to adjust, and the application efficiency and integration functions are greatly improved.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Nozzles (AREA)

Abstract

L'invention concerne un système de lutte contre le feu à mousse à air, constitué d'un système de projection, d'un système d'alimentation en eau, d'un système d'alimentation en air et d'un système d'alimentation en mousse. Le système de projection est en communication avec le système d'alimentation en eau, le système d'alimentation en air et le système d'alimentation en mousse. Le système d'alimentation en eau et le système d'alimentation en air sont des systèmes d'alimentation auto-alimentés, et le système d'alimentation en mousse est alimenté par le système d'alimentation en eau pour fournir un mélange de mousse par l'intermédiaire d'un dispositif d'alimentation en pression négative de Venturi. Le système de projection est une structure creuse cylindrique placée de manière indépendante sur un corps structural mobile de petit véhicule ou de type sac à dos, et comprend un tuyau de pulvérisation de lutte contre le feu, un dispositif de mélange d'eau, de mousse et d'air, et diverses entrées de milieu. Le système de lutte contre le feu à mousse à air utilise l'énergie éolienne comme force de projection du système de lutte contre le feu, peut être utilisé comme dispositif de lutte contre le feu à air pour lutter contre un feu de forêt, et peut également être utilisé pour de nombreux autres types de situations de lutte contre le feu. Le système de projection mélange entièrement un agent de lutte contre le feu avec l'eau, le moussage et la projection sont en outre entraînés par la force du vent, et la distance de projection est sensiblement prolongée. Dans des conditions de circulation sur le lieu d'incendie relativement difficiles, la présente invention atteint totalement l'objectif d'un système portable léger à courte distance qui met en œuvre une lutte contre le feu à grande force.
PCT/CN2015/097516 2015-07-29 2015-12-15 Système de lutte contre le feu à mousse à air WO2017016143A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510456107.1A CN105148429B (zh) 2015-07-29 2015-07-29 一种风力泡沫灭火系统
CN201510456107.1 2015-07-29

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US10332222B1 (en) 2017-12-02 2019-06-25 M-Fire Supression, Inc. Just-in-time factory methods, system and network for prefabricating class-A fire-protected wood-framed buildings and components used to construct the same
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US10695597B2 (en) 2017-12-02 2020-06-30 M-Fire Holdings Llc Method of and apparatus for applying fire and smoke inhibiting compositions on ground surfaces before the incidence of wild-fires, and also thereafter, upon smoldering ambers and ashes to reduce smoke and suppress fire re-ignition
US10814150B2 (en) 2017-12-02 2020-10-27 M-Fire Holdings Llc Methods of and system networks for wireless management of GPS-tracked spraying systems deployed to spray property and ground surfaces with environmentally-clean wildfire inhibitor to protect and defend against wildfires
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US11865390B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean water-based fire inhibiting biochemical compositions, and methods of and apparatus for applying the same to protect property against wildfire
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US10260232B1 (en) 2017-12-02 2019-04-16 M-Fire Supression, Inc. Methods of designing and constructing Class-A fire-protected multi-story wood-framed buildings
US10311444B1 (en) 2017-12-02 2019-06-04 M-Fire Suppression, Inc. Method of providing class-A fire-protection to wood-framed buildings using on-site spraying of clean fire inhibiting chemical liquid on exposed interior wood surfaces of the wood-framed buildings, and mobile computing systems for uploading fire-protection certifications and status information to a central database and remote access thereof by firefighters on job site locations during fire outbreaks on construction sites
US10332222B1 (en) 2017-12-02 2019-06-25 M-Fire Supression, Inc. Just-in-time factory methods, system and network for prefabricating class-A fire-protected wood-framed buildings and components used to construct the same
US10430757B2 (en) 2017-12-02 2019-10-01 N-Fire Suppression, Inc. Mass timber building factory system for producing prefabricated class-A fire-protected mass timber building components for use in constructing prefabricated class-A fire-protected mass timber buildings
US11633636B2 (en) 2017-12-02 2023-04-25 Mighty Fire Breaker Llc Wireless neighborhood wildfire defense system network supporting proactive protection of life and property in a neighborhood through GPS-tracking and mapping of environmentally-clean anti-fire (AF) chemical liquid spray applied to the property before wild fires reach the neighborhood
US10653904B2 (en) 2017-12-02 2020-05-19 M-Fire Holdings, Llc Methods of suppressing wild fires raging across regions of land in the direction of prevailing winds by forming anti-fire (AF) chemical fire-breaking systems using environmentally clean anti-fire (AF) liquid spray applied using GPS-tracking techniques
US10695597B2 (en) 2017-12-02 2020-06-30 M-Fire Holdings Llc Method of and apparatus for applying fire and smoke inhibiting compositions on ground surfaces before the incidence of wild-fires, and also thereafter, upon smoldering ambers and ashes to reduce smoke and suppress fire re-ignition
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