CN111494836B - Movable pulse air pressure spray water gun and fire extinguishing method - Google Patents

Movable pulse air pressure spray water gun and fire extinguishing method Download PDF

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Publication number
CN111494836B
CN111494836B CN202010218481.9A CN202010218481A CN111494836B CN 111494836 B CN111494836 B CN 111494836B CN 202010218481 A CN202010218481 A CN 202010218481A CN 111494836 B CN111494836 B CN 111494836B
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China
Prior art keywords
fire
air
water
pressure
groove
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CN202010218481.9A
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Chinese (zh)
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CN111494836A (en
Inventor
白夜
常宁
武英达
王力承
石宽
王博
杨维东
许继红
马树茂
方超
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BEIJING JIUZHOU SHANGYANG TECHNOLOGY CO LTD
China Fire Rescue College
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BEIJING JIUZHOU SHANGYANG TECHNOLOGY CO LTD
China Fire Rescue College
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Priority to CN202010218481.9A priority Critical patent/CN111494836B/en
Publication of CN111494836A publication Critical patent/CN111494836A/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C19/00—Hand fire-extinguishers in which the extinguishing substance is expelled by an explosion; Exploding containers thrown into the fire
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
    • F41B11/62—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas with pressure supplied by a gas cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/70—Details not provided for in F41B11/50 or F41B11/60
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/70—Details not provided for in F41B11/50 or F41B11/60
    • F41B11/72—Valves; Arrangement of valves
    • F41B11/723—Valves; Arrangement of valves for controlling gas pressure for firing the projectile only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/80—Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
    • F41B9/0003—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid
    • F41B9/0031—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid the liquid being pressurised at the moment of ejection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
    • F41B9/0003—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid
    • F41B9/005—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid the gun being connected to an external source of pressurised liquid during use of the gun, i.e. at least during ejection of the liquid
    • F41B9/0053—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the pressurisation of the liquid the gun being connected to an external source of pressurised liquid during use of the gun, i.e. at least during ejection of the liquid the external source being a pressurised water supply system, e.g. the municipal water supply system or a water supply system onboard a ship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B9/00—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure
    • F41B9/0087—Liquid ejecting guns, e.g. water pistols, devices ejecting electrically charged liquid jets, devices ejecting liquid jets by explosive pressure characterised by the intended use, e.g. for self-defence, law-enforcement, industrial use, military purposes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Emergency Management (AREA)
  • Forests & Forestry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Water Supply & Treatment (AREA)
  • Technology Law (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The application provides a movable pulse air pressure spraying water gun and a fire extinguishing method, wherein the movable pulse air pressure spraying water gun comprises a pulse gun, a high-pressure water pump for supplying water to the pulse gun through a water hose, and an air bottle for supplying air to the pulse gun through a high-pressure air hose; a water inlet switch is arranged on the water delivery hose; a pressure reducer is arranged on the high-pressure gas transmission hose; the pulse gun is provided with an air cylinder and an emission cylinder; an air valve is arranged between the air cylinder and the transmitting cylinder and is controlled to be opened or closed by a trigger structure arranged at the bottom of the air cylinder; the high-pressure gas transmission hose is connected to the side wall of the gas cylinder; the water delivery hose is connected to the side wall of the launch canister; the front end of the launching tube is detachably provided with an atomizing nozzle, and the launching tube is also used for installing fire extinguishing bombs and longitudinal fire tools; and the valve seat of the air valve is provided with an arc-shaped airflow groove. The movable pulse air pressure spraying water gun has the functions of water mist fire extinguishing, fire extinguishing by fire extinguishing bomb and ignition; the air flow groove on the valve seat of the air valve is designed into an arc-shaped surface, so that the pressure of the movable pulse air pressure spraying water gun is improved.

Description

Movable pulse air pressure spray water gun and fire extinguishing method
Technical Field
The application relates to a movable pulse air pressure spray water gun and a fire extinguishing method.
Background
Due to the characteristic law of forest fires, people are difficult to extinguish the fire by using hand tools only by manpower in the presence of large-area forest fires. With the development of society and the continuous progress of scientific technology, technologies such as meteorology, remote sensing, computers, lasers, communication, aerospace and the like are developed vigorously, chemical and biological technologies are continuously updated, and modern scientific management application is added, so that advanced means and technical conditions are provided for forest fire suppression. For example, the forest fire is monitored in real time by technical means such as infrared rays, radar, laser, satellite remote sensing and the like, and new technologies such as water fire extinguishing, aviation fire extinguishing, chemical fire extinguishing, artificial rain enhancement fire extinguishing, a computer forest fire management system and the like are applied, so that the forest fire control capability is improved, and the forest fire loss is reduced to the minimum; there remains a need for more efficient and safer fire suppression devices and methods to ensure the safety of firefighters.
The pulse air pressure spray water gun extinguishes fire by water mist, sprays water from the opening of the movable pulse air pressure spray water gun by high-pressure gas, has wide coverage range, has the advantages of atomization heat absorption, pulse impact, oxygen isolation and high fire extinguishing efficiency, and also has the functions of dust fall and smoke exhaust, thereby being widely applied to fire fighting of forest fires; however, the existing pulse air pressure spray water gun has the defects of single function, unstable pressure, too long stroke of a water inlet switch, inconvenience in operation and the like.
Disclosure of Invention
The technical problem that this application will be solved provides a multi-functional portable pulse atmospheric pressure spraying squirt and uses the fire extinguishing method of this squirt.
The technical problem to be further solved by the application is to provide a mobile pulse air pressure spray water gun, which comprises a pulse gun, a high-pressure water pump for supplying water to the pulse gun through a water hose, and an air bottle for supplying air to the pulse gun through a high-pressure air hose; a water inlet switch is arranged on the water delivery hose; a pressure reducer is arranged on the high-pressure gas transmission hose;
the pulse gun is provided with an air cylinder and an emission cylinder; an air valve is arranged between the air cylinder and the transmitting cylinder and is controlled to be opened or closed by a trigger structure arranged at the bottom of the air cylinder; the high-pressure gas transmission hose is connected to the side wall of the gas cylinder; the water delivery hose is connected to the side wall of the launch canister; the front end of the launching tube is detachably provided with an atomizing nozzle, and the launching tube is also used for installing fire extinguishing bombs and longitudinal firearms;
the air valve comprises a valve seat and a valve core, and the valve seat is fixedly arranged in the launching barrel; an airflow outlet is formed in the center of the valve seat; the valve core is pressed against the middle part of the side surface of the valve seat through a spring, and the other end of the spring is connected with a trigger structure; an airflow groove is formed in the side face of the valve seat and around the valve core; a groove is formed in the position, corresponding to the position between the airflow groove and the airflow outlet, of the valve core; a sealing ring is arranged in the valve core corresponding to the groove and used for closing the air valve when the spring is compressed; the wall of the airflow groove is an arc-shaped wall.
According to the technical scheme provided by the embodiment of the application, the water inlet switch comprises: the water inlet valve comprises a water inlet valve rod and a water inlet valve sleeve which is sleeved on the outer wall of the water inlet valve rod and can slide along the outer wall of the water inlet valve rod;
a water inlet pipeline and a water drainage pipeline are arranged in the water inlet valve rod; a first notch communicated with the water inlet pipeline is arranged at one end, relatively close to the water drainage pipeline, of the water inlet pipeline, and a second notch communicated with the water inlet pipeline is arranged at one end, relatively close to the water inlet pipeline, of the water drainage pipeline;
a water supply cavity and a water stopping cavity are arranged in the water inlet valve sleeve; the diameter of the water supply cavity is larger than that of the water inlet valve rod, and the water stopping cavity can just cover the water inlet valve rod; and a stop ring for limiting the displacement of the water inlet valve sleeve is arranged at one end of the water inlet valve rod, which is relatively far away from the drainage pipeline.
According to the technical scheme provided by the embodiment of the application, one end, relatively far away from the water inlet pipeline, of the water inlet valve rod is provided with a stop groove for limiting the displacement of the water inlet valve sleeve.
According to the technical scheme that this application embodiment provided, the pressure reducer includes: the gas distribution part and the pressure regulating part are matched and connected with the gas distribution part;
the air distribution part is provided with an air inlet channel, an air outlet channel and an air distribution groove communicated with the air inlet channel and the air outlet channel; a gas distribution unit is arranged in the gas distribution groove; one end of the gas distribution unit, which is relatively close to the gas inlet channel, is provided with a containing groove, and one end of the gas distribution unit, which is relatively far away from the gas inlet channel, is provided with a pressure regulating groove; the accommodating groove is communicated with the pressure regulating groove through an introducing channel; the same end of the gas distribution unit and the pressure regulating groove is provided with a gas guide channel penetrating through the pressure regulating groove; a gas distribution core is arranged in the accommodating groove, and a gas inlet elastic piece is arranged between the gas distribution core and the gas inlet channel; the air distribution unit further comprises: one end of the pressure regulating groove can sequentially penetrate through the pressure regulating channel and the introducing channel and can enter the pressure bearing part in the accommodating groove;
the free end of the gas distribution groove is also provided with a pressure regulating cover capable of moving along the axis of the inner wall of the gas distribution groove; an outer air guide groove capable of accommodating the air distribution unit is arranged at one end of the pressure regulating cover, which is relatively close to the air distribution unit;
one end of the pressure regulating part, which is relatively close to the gas distribution groove, is fixedly connected with the outer wall of the gas distribution groove; a pressure regulating unit is arranged in the pressure regulating part; the pressure regulating unit comprises a pressure regulating cover matched and connected with the inner wall of the pressure regulating part, and a pressure regulating spring is arranged between the pressure regulating cover and the pressure regulating cover.
According to the technical scheme that this application embodiment provided, one of going into the holding tank on the bearing part serves and is equipped with the pressure regulating arch just be equipped with on the distribution core with the protruding assorted pressure regulating recess of pressure regulating.
According to the technical scheme provided by the embodiment of the application, the groove wall of the accommodating groove communicated with the introducing channel is provided with an annular bulge communicated with the introducing channel; according to the technical scheme provided by the embodiment of the application, one end, which is relatively close to the pressure regulating cover, of the pressure bearing part is provided with the pressure bearing plate.
In a second aspect, the present application provides a method of extinguishing a fire, comprising the steps of:
within a safe distance in front of the fire field spreading direction: initiatively igniting combustible materials one by one along the ignition direction to form ignition areas one by one; the firing direction is approximately parallel to the edge of the fire scene;
turning on a water inlet switch of the movable pulse air pressure spraying water gun, installing an atomizing nozzle, and pulling a trigger of the pulse gun to open an air valve; along the ignition direction, the fire in the ignition area and the area of the ignition area far away from the fire scene direction is sprayed out by atomized water; the fire in each ignition area close to the fire scene direction spreads towards the fire scene direction, and a 3-5 m wide fire-retardant burning area is formed on the connecting line of each ignition area;
the wind power fire extinguisher is adopted to control the spread of the ignition fire head to the fire field direction to collide with the fire head of the fire field so as to extinguish the fire head of the fire field.
According to the technical scheme provided by the embodiment of the application, a connecting line of the centers of adjacent spot burning areas forms a unit spot burning line; all the unit point-burning lines form a saw-tooth shape.
According to the technical scheme provided by the embodiment of the application, the fire extinguishing method further comprises the following steps: closing a water inlet switch of the movable pulse air pressure spraying water gun and detaching an atomizing spray head; installing a longitudinal fire tool in the launching tube, and pulling a trigger of the pulse gun to open the air valve; the longitudinal fire is launched in front of the spread of the strong fire head close to the fire scene to actively ignite combustible substances, so that the actively ignited fire head collides with the strong fire head of the fire scene, and the spread speed of the strong fire head of the fire scene is reduced.
According to the technical scheme provided by the embodiment of the application, the fire extinguishing method further comprises the following steps: closing a water inlet switch of the movable pulse air pressure spraying water gun and detaching an atomizing spray head; installing a fire extinguishing bomb in the launching tube, and pulling a trigger of the pulse gun to open the air valve; fire extinguishing bomb is launched in front of the fire head spread close to the fire scene to scatter the fire head of the fire scene and reduce the intensity of the fire head of the fire field.
The application has the advantages and positive effects that: due to the adoption of the technical scheme, the movable pulse air pressure spraying water gun is provided with the gas and the emission cylinder, the atomization spray head is detachably arranged on the emission cylinder, and the fire extinguishing bomb and the longitudinal fire tool can be installed in the emission cylinder, so that the movable pulse air pressure spraying water gun has the functions of water mist fire extinguishing and fire extinguishing of the fire extinguishing bomb and has the function of ignition; in the scheme, the air flow groove on the valve seat of the air valve is designed into an arc-shaped surface, so that air flow in the air cylinder can smoothly enter the launching tube through the groove without hindrance, sufficient pressure is provided for the fire extinguishing bomb, and the problem that the fire extinguishing bomb of the fire extinguishing bomb launching gun in the prior art cannot be hit due to insufficient pressure is solved; simultaneously because smooth and easy air current, the spraying scope of portable pulse atmospheric pressure spraying squirt in this scheme also is bigger, realizes putting out a fire of wider range.
Because the high-pressure water pump is adopted to supply water to the movable pulse air pressure spraying water gun in the application; compared to water supply from a water tank, the number of injections is limited due to the specific amount of water supplied. The water supply is changed into a high-pressure water pump, the spraying frequency is not limited, a fireman only carries one 6.8L gas cylinder and one sprayer, the total weight is about 15 kilograms, and the load of the fireman is greatly reduced. The water supply and delivery pipe for the high-pressure water pump can be prolonged by several kilometers, a fireman can carry a 6.8L gas cylinder (30Mpa) for 80 times, fire extinguishment, people saving and danger avoiding can be well completed, and the fighting capacity is greatly improved; the high-pressure water pump fundamentally changes the structure that the pulse air pressure spray water gun is short of water supply, lightens the load of the body of a fireman, and is more convenient and faster to operate; the water pump is connected for supplying water, so that the problems that the pulse air pressure spray water gun is insufficient in water supply and the whole set of equipment is overweight (less than 30 kilograms according with the national standard) are solved, the load of a fireman is reduced, and the operation is convenient. The connection water pump can get water close to a water source place, and the air-drop water bag far away from the water source place can get water nearby, so that the purposes of quickly extinguishing fire, removing smoke and dust and quickly cooling can be achieved to realize emergency danger avoidance.
Based on the design, the application further provides a fire extinguishing method for fire fighting with fire, which is suitable for forest fire extinguishing, wherein in a safe distance and in a safe distance in front of a fire scene spreading direction, combustible materials are actively burned off by an ignition method, so that the ignited fire spreads towards the fire scene and meets fire wires of the fire scene to prevent forest fire from spreading, a movable pulse air pressure spraying water gun is used, a fire in an active ignition area far away from the fire scene direction is extinguished to form an effective fire burning trace blocking place, safe supporting conditions are provided for fire fighting, and natural blocking conditions such as roads and rivers can be avoided, or artificial blocking conditions are formed by supporting an isolation zone with a large excavator in the fire fighting method; the implementation is convenient, rapid and safe.
In the preferred scheme of the application, in the design of the water inlet switch of the movable pulse air pressure spraying water gun, the water inlet pipeline and the water discharge pipeline in the water inlet valve rod are separately designed, and by means of the design of the water stop cavity and the water supply cavity on the water inlet valve sleeve, the first notch and the second notch are exposed in the water supply cavity together by moving the water inlet valve sleeve along the surface of the water inlet valve rod, so that the water inlet switch provided by the technical scheme is in a water supply state; the water inlet valve sleeve is moved along the surface of the water inlet valve rod, so that the first notch enters the water stopping cavity, and the water inlet switch provided by the technical scheme is in a non-water supply state. Based on the design, in specific practice, an operator can realize the switching between the water supply state and the non-water supply state only by moving the water inlet valve sleeve along the water inlet valve rod, and compared with the prior art, the water supply valve has the advantages of short operation stroke and very convenient and fast operation.
In the preferred scheme of this application, in the design of the pressure reducer of portable pulse atmospheric pressure spraying squirt, this technical scheme in respectively with the distribution groove of inlet channel and exhaust passage intercommunication design distribution unit and with the pressure regulating cover that the distribution unit matches and connects, and pressure regulating portion interior design with the pressure regulating unit that the pressure regulating cover matches and connects, through the degree that compresses tightly of the regulating spring who adjusts in the pressure regulating unit, the regulating spring promotes the pressure regulating cover and then promotes the pressure-bearing piece, finally adjusts the position of pressure-bearing piece for in the pressure regulating unit, with adjust the inlet channel with clearance between the pressure-bearing piece, the high-pressure gas's that gets into path of marcing in the inlet channel can be adjusted, and then make high-pressure gas at the inlet channel with adjusted for predetermined pressure value between the pressure-bearing piece. The gas after pressure regulation enters the pressure regulating groove, then enters the gas distribution groove through the inner and outer gas guide grooves of the gas guide channel, and finally enters the exhaust channel communicated with the gas distribution groove, so that stable gas pressure is provided.
In addition to the technical problems, technical features constituting technical solutions, and advantages brought by the technical features of the technical solutions described above, other technical problems, technical features included in technical solutions, and advantages brought by the technical features that can be solved by the mobile pulsed air pressure spray water gun and the fire extinguishing method using the mobile pulsed air pressure spray water gun of the present application will be further described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a pulsed water gun in embodiment 1 of the present application;
FIG. 2 is a schematic view of the structure of the gas valve of the present application;
FIG. 3 is a schematic view of the construction of the valve seat of the present application;
FIG. 4 is a schematic view of a prior art valve seat;
FIG. 5 is a schematic view of the inlet valve stem of the present application;
FIG. 6 is a schematic structural view of one embodiment of a water inlet valve sleeve according to the present application;
fig. 7 is a schematic structural view (water supply state) of the water inlet switch of the present application;
fig. 8 is a schematic structural view (non-water supply state) of the water inlet switch of the present application;
FIG. 9 is a schematic structural view of one embodiment of a water inlet valve sleeve according to the present application;
FIG. 10 is a schematic illustration of the construction of one embodiment of a pressure relief device of the present application;
fig. 11 is a schematic structural view of a mating relationship between the air distribution portion and the pressure regulating portion in fig. 10;
FIG. 12 is a schematic structural view of one embodiment of the air distribution unit of FIG. 10;
FIG. 13 is a schematic structural view of one embodiment of the air distribution unit of FIG. 10;
FIG. 14 is a schematic structural view of one embodiment of the air distribution unit of FIG. 10;
FIG. 15 is a schematic structural view of one embodiment of the air distribution unit of FIG. 10;
FIG. 16 is a schematic structural view of one embodiment of the air distribution unit of FIG. 10;
FIG. 17 is a flowchart of a fire extinguishing method in embodiment 2;
fig. 18 and 19 are schematic views of a fire scene in fire extinguishing.
Detailed Description
The following further describes embodiments of the present application with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present application, but the present application is not limited thereto. In addition, the technical features mentioned in the embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
Example 1:
as shown in fig. 1, the present application provides a mobile pulse pneumatic spray water gun, which comprises a pulse gun 1, a high-pressure water pump 3 for supplying water to the pulse gun 1 through a water hose 2, and a gas cylinder 5 for supplying gas to the pulse gun 1 through a high-pressure gas hose 4; the water delivery hose 2 is provided with a water inlet switch 6; a pressure reducer 7 is arranged on the high-pressure gas transmission hose 4;
the pulse gun 1 is provided with an air cylinder 8 and a launching cylinder 9; an air valve is arranged between the air cylinder 8 and the transmitting cylinder 9 and is controlled to be opened or closed by a trigger structure 10 arranged at the bottom of the air cylinder 8; the high-pressure gas transmission hose 4 is connected to the side wall of the gas cylinder 8; the water hose 2 is connected to the side wall of the launch canister 9; the front end of the launching tube 9 is detachably provided with an atomizing nozzle 11, and the launching tube 9 is also used for installing a fire extinguishing bomb 12 and a longitudinal fire tool;
in the present embodiment, the atomizer 11 is fixed to the barrel 9 by a lock, and the attachment and detachment thereof are achieved by screwing the lock. The front end of the atomizing nozzle 11 is provided with a rubber pad, a plurality of cross-shaped notches are uniformly formed in the rubber pad, and when a water mist spraying function is used, water mist is flushed out of the cross-shaped notches under the impact of pressure; when the atomizer is idle, the cut is in a sealed state, so that the structure in the atomizer can be protected, and the atomizer is prevented from being polluted and blocked.
In the present embodiment, the high pressure water pump 3 supplies water in comparison with the water tank supply water, and the number of times of injection is limited due to the specific amount of water supply. The water supply is changed into a high-pressure water pump, the spraying frequency is not limited, a fireman only carries one 6.8L gas cylinder and one sprayer, the total weight is about 15 kilograms, and the load of the fireman is greatly reduced. The water supply pipe for the high-pressure water pump can be prolonged by several kilometers, a fireman can take 80 times with a 6.8L gas cylinder (30Mpa), fire extinguishment, people saving and danger avoiding can be well completed, and the fighting capacity is greatly improved.
The high-pressure water pump fundamentally changes the structure that the pulse air pressure spray water gun is short of water supply, lightens the load of the body of a fireman, and is more convenient and faster to operate; the water pump is connected for supplying water, so that the problems that the pulse air pressure spray water gun is insufficient in water supply and the whole set of equipment is overweight (less than 30 kilograms according with the national standard) are solved, the load of a fireman is reduced, and the operation is convenient. The connection water pump can get water close to a water source place, and the air-drop water bag far away from the water source place can get water nearby, so that the purposes of quickly extinguishing fire, removing smoke and dust and quickly cooling can be achieved to realize emergency danger avoidance.
As shown in fig. 2, the gas valve comprises a valve seat 13 and a valve core 14, and the valve seat 13 is fixedly installed in the launching barrel 9; an airflow outlet 15 is formed in the center of the valve seat 13; the valve core 14 is pressed against the middle part of the side surface of the valve seat 13 through a spring 16, and the other end of the spring 16 is connected with a trigger structure 10; an airflow groove 17 is formed in the side face of the valve seat 13 and around the valve core 14; the valve core 14 is provided with a groove 18 at a position corresponding to the position between the airflow groove 17 and the airflow outlet 15; a sealing ring 19 is arranged in the valve core 14 corresponding to the groove 18 and used for closing the air valve when the spring 16 is compressed; the wall of the air flow groove 17 is an arc wall.
As shown in fig. 2 and 3, the valve seat 13 of the present application is provided with an arc-shaped air flow groove 17, compared with the square air flow groove in the prior art in fig. 4, after the valve core 14 is opened, the air flow groove of the arc-shaped wall effectively reduces the reflection of the air flow, and smoothly enters the air flow outlet 15 through the opened groove 18 along the arc-shaped wall, so that stronger air flow and pressure can be provided when water mist is sprayed, a fire-fighting tool and a fire-fighting bomb are sprayed, and the problem that the fire-fighting bomb is not in place due to small projection pressure is solved; the range and distance that the water mist can be sprayed are larger, and more safe fire extinguishing distance is provided. The direction of the arrows in fig. 2-4 is the direction of airflow.
Wherein, in this embodiment, the switch of intaking includes: the water inlet valve comprises a water inlet valve rod 20 and a water inlet valve sleeve 21 which is sleeved on the outer wall of the water inlet valve rod 20 and can slide along the outer wall of the water inlet valve sleeve.
Referring to the schematic structural diagram of the inlet valve stem shown in fig. 9, the inlet valve stem 1 is provided with a water inlet pipeline 22 and a water discharge pipeline 23 inside; an annular first notch 24 communicated with the water inlet pipeline 23 is formed in one end, close to the water discharge pipeline 23, of the water inlet pipeline 22, and an annular second notch 25 communicated with the water inlet pipeline 22 is formed in one end, close to the water inlet pipeline 22, of the water discharge pipeline 23.
Based on the design, the first notch can lead the water flow in the water inlet pipeline out to the surface of the water inlet valve rod; the second slot is capable of introducing an external water flow into the drain line. The water inlet pipeline and the water discharge pipeline in the water inlet valve rod are separately designed, and the state switching of the ball valve device between the water inlet pipeline and the water discharge pipeline is not needed.
Referring to fig. 6, a schematic structural diagram of an embodiment of the water inlet valve sleeve is shown, a water supply cavity 26 and a water stop cavity 27 are arranged in the water inlet valve sleeve 21; the diameter of the water supply cavity 26 is larger than that of the water inlet valve rod 20, and the water stop cavity 27 just can cover the water inlet valve rod 20.
Referring to fig. 7, the water inlet valve sleeve is moved along the surface of the water inlet valve rod, so that the first notch and the second notch are exposed in the water supply cavity together, and the water inlet switch provided by the present embodiment is in a water supply state; referring to fig. 8, the water inlet valve sleeve is moved along the surface of the water inlet valve rod, so that the first notch enters the water stop cavity, and the water inlet switch provided by the embodiment is in a non-water supply state. Based on the design, in specific practice, an operator can realize the switching between the water supply state and the non-water supply state only by moving the water inlet valve sleeve along the water inlet valve rod, and compared with the prior art, the water supply valve has the advantages of short operation stroke and very convenient and fast operation.
In this embodiment, the diameter in water supply chamber is greater than the diameter of water inlet valve rod 20 provides sufficient space for the rivers exchange between water intake pipe and the drainage pipe, and rivers in the water intake pipe get into first scarce groove, get into in the water supply intracavity and lack the groove via the second and get into the drainage pipe, have realized the exchange of rivers between water intake pipe and drainage pipe. When continuous water flow enters the water inlet pipeline, continuous water supply can be realized.
In this embodiment, the stagnant water chamber just can cladding the valve rod of intaking, when the valve barrel removes to the stagnant water chamber just cladding first scarce groove, the stagnant water chamber can block rivers and get into the water supply intracavity, and then blocks the water supply state.
Optionally, the first notch is of an annular structure; the second notch is of an annular structure.
Optionally, a tapered transition cavity 52 is arranged between the water supply cavity and the water stop cavity, and the tapered transition cavity is designed to provide an optimized transition effect between the water supply cavity and the water stop cavity, so that the situation that the water inlet valve sleeve is blocked in the process of moving along the water inlet valve rod when the water supply state is switched to the non-water supply state can be effectively prevented.
Optionally, a tapered transition cavity 52 is arranged at one end of the water supply cavity, which is far away from the water stop cavity, and the tapered transition cavity is designed to provide an optimized transition effect between the water supply cavity and the water stop cavity, so that the situation that the water inlet valve sleeve is blocked in the process of moving along the water inlet valve rod when the water supply state is switched to the non-water supply state can be effectively prevented.
Referring to fig. 9 and 7, in the present embodiment, a stop ring 28 for limiting the displacement of the inlet valve sleeve 21 is disposed on one end of the inlet valve stem 20 relatively far from the drain line 4. When the water supply switch is in the water supply state, the stop ring 28 can limit the space in which the water inlet valve sleeve moves away from the drain line by moving the water inlet valve sleeve along the surface of the water inlet valve rod.
Referring to the technical solution provided by this embodiment shown in fig. 9, a stop groove 29 for limiting the displacement of the inlet valve sleeve 21 is disposed on one end of the inlet valve rod 20 relatively far from the inlet pipeline 22. When the water supply switch is in a non-water supply state, the stop groove 29 can be matched with the water inlet valve sleeve by moving the water inlet valve sleeve along the surface of the water inlet valve rod so as to limit a moving space of the water inlet valve sleeve in a direction far away from the water inlet pipeline.
Based on the two designs, the moving space of the water inlet valve sleeve on the water inlet valve rod is clearly limited, so the operation stroke is shorter, and the resetting is very easy to realize.
Referring to the technical solution provided by this embodiment shown in fig. 9 and 7, at least one set of O-rings is disposed on the sidewall of the water-stopping cavity 27. The design can effectively prevent water leakage at the water inlet valve rod in a non-water supply state.
Referring to the technical solution provided by this embodiment shown in fig. 9 and fig. 7, at least one set of O-rings is disposed on an inner wall of an end of the water inlet valve sleeve 21 relatively far from the water stop chamber 27. The design can effectively prevent water leakage at the water inlet valve rod in the water supply state.
Referring to the technical solution provided by this embodiment shown in fig. 6, an annular holding groove 50 is formed on a side wall of the water inlet valve sleeve 21, and an annular protrusion 51 is formed on a side wall of the holding groove 50. The design of the holding groove provides enough holding space for the hand of an operator, and the design of the annular protrusion can effectively increase the friction force between the hand of the user and the holding groove in actual operation and prevent the hand of the operator from slipping in the use process.
Optionally, please refer to the technical solution provided in this embodiment shown in fig. 9, an annular third slot 53 is disposed on one end of the holding slot 50 relatively close to the water inlet pipeline, and an annular elastic compression sleeve 54 is disposed in the annular third slot. The surface of the elastic compression sleeve is provided with an anti-falling bulge.
In the design of the embodiment, the third notch enables the water inlet valve sleeve to have certain toughness on the premise that the water inlet valve sleeve keeps enough bearing capacity, the water inlet valve sleeve section corresponding to the third notch can deform to a certain extent under the action force of the elastic telescopic sleeve, and when the water inlet switch is in a non-water supply state, the third notch and the elastic compression sleeve can provide enough pressing force for the first notch, so that water leakage is further prevented.
In practical use, the elastic compression sleeve can be moved to any position on the holding sleeve except the third notch, so as to avoid influencing the switching speed of the water inlet switch between the water supply state and the non-water supply state. When the water inlet switch is in a long-time non-water-supply state after being used, the elastic compression sleeve can be moved to the third notch, and the third notch and the elastic compression sleeve can provide enough pressing force for the first notch, so that water leakage is further prevented.
Wherein, in this embodiment, the pressure reducer includes: an air distribution part 30 and a pressure regulating part 2 connected with the air distribution part 1.
The gas distribution unit is a key structure of the present embodiment, and is configured to adjust the pressure of the high-pressure gas introduced from the intake passage. In order to achieve the final preset pressure value, the gas distribution part and the pressure regulating part are required to be combined with each other.
Wherein:
the gas distribution part 30 is provided with a gas inlet channel 32 for introducing high-pressure gas; an exhaust passage 33 for exhausting the low pressure gas adjusted to a preset pressure value; and the gas distribution groove 34 is communicated with the gas inlet channel 32 and the gas outlet channel 33 and is used for installing a gas distribution unit so as to adjust high-pressure gas introduced from the gas inlet channel to low-pressure gas with a preset pressure value. Of course, the preset pressure value needs to be realized by the pressure regulating part, which will be described later. Alternatively, referring to fig. 10, the intake channel and the exhaust channel are both located at one side of the gas distribution groove and are respectively communicated with the groove wall of the gas distribution groove. Optionally, the intake passage includes: the air distribution device comprises an air inlet groove connected with an external air inlet pipeline and a first transition passage communicating the air inlet groove with an air distribution groove. The exhaust passage includes: the air distribution system comprises an exhaust groove connected with an external exhaust pipeline and a second transition passage communicating the exhaust groove with the air distribution groove.
The diameters of the first transition passage and the second transition passage are respectively smaller than the diameters of the air inlet groove and the air exhaust groove.
Referring to fig. 10 and 11, a gas distribution unit is disposed in the gas distribution groove 34; optionally, a groove wall of the gas distribution groove, which is relatively close to the gas inlet channel, is provided with a volumetric groove capable of accommodating the gas distribution unit, and the volumetric groove is clamped with one end of the gas distribution unit to fix the gas distribution unit.
One end of the air distribution unit, which is relatively close to the air inlet channel 32, is provided with an accommodating groove 35, and one end of the air distribution unit, which is relatively far away from the air inlet channel 32, is provided with a pressure regulating groove 36; the accommodating groove 35 and the pressure-regulating groove 36 communicate with each other through an introduction passage 37.
Referring to fig. 10, a gas distribution core 39 is disposed in the accommodating groove 35, and an air inlet elastic member 40 is disposed between the gas distribution core 39 and the air inlet passage 32; based on the design, when high-pressure gas enters the gas distribution groove from the inlet channel, the high-pressure gas firstly contacts and pushes the gas inlet elastic piece, and then the gas distribution core is driven to displace towards one side close to the inlet channel, so that the high-pressure gas enters the accommodating groove. Optionally, referring to fig. 12, an end of the air distribution core 39 relatively close to the air inlet passage 3 is provided with an air inlet groove 55 for facilitating the matching with the air inlet elastic member 40. Alternatively, the intake elastic member may be a spring, or any member capable of elastically deforming under the action of high-pressure gas.
Optionally, the side wall of the gas distribution core 39 is provided with a bleed air groove. The design of bleed air recess can provide the volume that can bear gas in the holding tank.
And the pressure regulating groove 36 is used for being matched and connected with the pressure bearing part 41, the accommodating groove 35 is communicated with the pressure regulating groove 36 through an introducing channel 37, and gas entering from the accommodating groove sequentially enters the introducing channel and the pressure regulating groove. The same end of the air distribution unit and the pressure regulating groove 36 is provided with an air guide channel 38 penetrating through the pressure regulating groove 36; the gas entering the pressure regulating groove enters the gas guide channel and then enters the gas distribution groove.
The air distribution unit further comprises: the pressure receiving member 41, which has one end capable of sequentially penetrating the pressure regulating groove 36, the introducing passage 37 and capable of entering the receiving groove 35. When the pressure-bearing piece enters the pressure-regulating groove and the introducing channel, the pressure value of the entering gas can be regulated.
Optionally, the size of the introducing channel is smaller than the size of the pressure regulating groove and the accommodating groove. The pressure value of the inlet gas can be better adjusted by adjusting the clearance between the pressure-bearing piece and the inlet channel.
With regard to the structure of the bearing member, optionally, the bearing member has a diameter that gradually increases from an end thereof near the receiving groove to an end thereof relatively far from the receiving groove. Please refer to fig. 13.
Optionally, the diameter of the pressure-bearing part increases in a step shape from the end close to the receiving groove to the end relatively far away from the receiving groove. Through improving the structure of pressure-bearing spare, can be convenient for more adjust the pressure value of entering gas. Please refer to fig. 14.
Preferably, referring to fig. 12, a pressure regulating protrusion 46 is disposed on one end of the pressure bearing member 12 entering the accommodating groove 35, and a pressure regulating groove 47 matching with the pressure regulating protrusion 46 is disposed on the air distribution core 39. Through the clearance between adjustment pressure regulating protrusion and the holding tank cell wall, can adjust the gaseous pressure of admitting air promptly in holding tank department. Further, referring to fig. 12, a groove wall of the accommodating groove 35 communicating with the introducing channel 37 is provided with an annular protrusion 48 communicating with the introducing channel 37. Based on the design of the pressure regulating bulge, the clearance between the pressure regulating bulge and the annular bulge is regulated, on one hand, the advancing path of high-pressure gas entering from the gas inlet channel can be regulated, and the purpose of pressure reduction is realized; on the other hand, the gas walking path can be prolonged to a certain extent, and the purpose of reducing pressure is achieved.
In order to facilitate the adjustment of the position relationship of the pressure bearing part relative to the pressure regulating groove, a pressure regulating cover 42 capable of moving along the axis of the inner wall of the gas distribution groove 34 is further arranged on the free end of the gas distribution groove 34; the inner wall of the pressure regulating cover 42 contacts the pressure bearing plate, and when the pressure regulating cover moves to the side close to the pressure bearing plate, the pressure regulating cover can drive the pressure bearing plate to move. Optionally, a pressure bearing plate 49 is disposed on one end of the pressure bearing member 41 relatively close to the pressure regulating cover 42. The bearing area of the bearing piece can be increased through the design of the bearing plate.
And an outer air guide groove 43 capable of accommodating the air distribution unit is arranged at one end of the pressure regulating cover 42, which is relatively close to the air distribution unit. Based on the design, the outer gas guide groove is communicated with the gas distribution groove, and gas entering the gas guide channel firstly enters the outer gas guide groove and then enters the gas distribution groove. Optionally, at least one O-ring is arranged between the pressure regulating cover and the side wall of the gas distribution groove.
Referring to fig. 10, one end of the pressure regulating portion 31 relatively close to the gas distribution groove 34 is fixedly connected to an outer wall of the gas distribution groove 34; a pressure regulating unit is arranged in the pressure regulating part 31; the pressure regulating unit comprises a pressure regulating cover 44 matched with the inner wall of the pressure regulating part 31, and a pressure regulating spring 45 is arranged between the pressure regulating cover 44 and the pressure regulating cover 42. Optionally, a limiting protrusion for fixing the pressure regulating spring is arranged on one side of the pressure regulating cover relatively close to the pressure regulating spring.
The pressure reducing device in the embodiment is respectively connected with the external high-pressure air inlet pipeline and the external low-pressure exhaust pipeline, the position of the pressure regulating cover relative to the pressure regulating part is regulated while the gas pressure in the low-pressure exhaust pipeline is measured in real time, and the pressure reducing device capable of reducing the pressure of high-pressure gas to preset pressure can be obtained through limited experiments.
Of course, in the case that the pressure-bearing member is in a different structure, in order to achieve the same preset pressure value, the positions of the pressure-bearing member with respect to the pressure regulating unit are different, and need to be measured separately.
Through to moving the pressure regulating cover to one side that is close to the pressure regulating cover, can compress the pressure regulating spring, and then promote pressure regulating cover, pressure-bearing piece and remove, when the pressure-bearing piece gets into the preset position of pressure regulating unit, reach the preset pressure value promptly. And fixing the pressure regulating cover. Optionally, the pressure regulating cover 44 is in threaded fit with the inner wall of the pressure regulating part 31, and the pressure regulating cover 44 is relatively close to the hemispherical protrusion 61. The pressure regulating cover is connected with the interior of the pressure regulating part through threads, and the position of the pressure regulating cover can be limited by utilizing the thread fixation.
Furthermore, an end cover 62 matched and connected with the free end of the pressure regulating part 2 is arranged on the free end of the pressure regulating part; the center of the pressure regulating cover 15 is provided with a connecting groove 63, and one side of the end cover 62 relatively close to the connecting groove 63 is provided with a connecting column 64 matched with the connecting groove 63.
Based on the design, the position of the pressure-adjusting cover can be further limited by the design of the end cover and the connecting column.
Referring to an embodiment of the pressure regulating unit shown in fig. 15, an end of the pressure-bearing member 41 entering the accommodating groove 35 is provided with a reverse guide channel 56 inclined to a side close to the pressure regulating protrusion 46, and the two reverse guide channels 56 are together with a bleed air channel 57 arranged in the pressure-bearing member 41; the air-entraining channel 57 is communicated with an air-entraining through groove 58 arranged on the pressure regulating protrusion 46.
When the instantaneous air pressure in the high-pressure gas exceeds the preset air inlet pressure value, the volume of the gas entering the introducing channel is increased instantaneously, the influence of the condition on the pressure reducing unit is relieved by the back-leading channel, and partial gas enters the back-leading channel from the back-leading channel and then enters the air-leading channel and the air-leading through groove to be released.
Referring to fig. 16, optionally, an annular elastic expansion portion 59 is fixedly connected to a free end of the air-introducing through slot 58, and an inner pressing plate 60 is fixedly connected to a free end of the elastic expansion portion 59. Through the free end that bleed led to the groove is equipped with elastic expansion portion and interior clamp plate, can lead to the gas that gets into bleed led to the inslot and introduce the space that elastic expansion portion and interior clamp plate formed, thereby the existence of interior clamp plate can extrude the distribution core alleviate the gas volume that gets into in the inlet channel to a certain extent to alleviate the influence of high pressure in the twinkling of an eye to the distribution unit.
Example 2
As shown in fig. 17, the present embodiment provides a fire extinguishing method using the movable pulse-type pneumatic spray water gun according to embodiment 1, including the following steps:
s1. as shown in fig. 18, within a safe distance in front of the fire scene 65 spreading direction: the combustible materials are ignited actively one by one along the ignition direction to form ignition areas 66 one by one; the firing direction is generally parallel to the edge of the fire scene 65; in fig. 18, an arrow a indicates a spreading direction of the fire field 65, and an arrow B indicates a burning direction; the safe distance is about 1KM, for example, and the safe distance is selected according to the actual intensity and the spreading condition of a fire scene;
preferably, in order to ensure the safety of the implementing personnel, after the step S1, the method further includes: controlling the ignited fire to spread towards the fire scene by using a wind power fire extinguisher, namely, the fire to spread towards the arrow C direction;
s2, turning on a water inlet switch of the movable pulse air pressure spraying water gun, installing an atomizing nozzle, and pulling a trigger of the pulse gun to open an air valve; along the ignition direction, the fire in the ignition area 66 and the area of the ignition area 66 far away from the fire scene direction is sprayed out by atomized water; the fire in each ignition area 66 close to the fire scene direction spreads to the fire scene 65 direction, and a 3-5 m wide fire-retardant burning ground is formed on the connecting line of each ignition area 66; the combustible material in each ignition region is ignited and then rapidly diffuses to the periphery around the ignition center, and adjacent ignition regions are connected into a whole, namely the ignition region 66 is shown as a schematic diagram when the ignition region is just ignited in fig. 18, and the regional range of the ignition region 66 is always expanded; in the implementation process, ignition personnel ignite one by one in front, fire extinguishing personnel move gradually to extinguish the fire in front of the fire extinguishing personnel, and the advancing direction of the fire extinguishing personnel is the direction from left to right in the drawing, so that the fire in front of the fire extinguishing personnel and the fire on the right of the fire extinguishing personnel can be extinguished;
preferably, for the convenience of operation, the person igniting the cake advances in the direction of ignition in a zigzag manner, i.e. the connecting line of the centers of adjacent ignition regions forms a unit ignition line 68; all the unit point burning lines are connected to form a saw-tooth shape; thus, fire extinguishing personnel can be prevented from spraying to the ignition personnel when spraying forward.
S3, the wind power fire extinguisher is adopted to control the ignition fire head to spread towards the fire scene direction, namely, to spread along the direction of an arrow C in the drawing, and then the ignition fire head collides with the fire head of the fire scene to extinguish the fire head of the fire scene, the actively ignited fire can preempt the oxygen in the front of the fire scene spreading direction to consume, when the actively ignited fire meets the fire head of the fire scene, because the oxygen is consumed, a loud sound is generated, and two groups of fire loud sounds are extinguished, so that the fire in the fire scene is extinguished.
In the above-mentioned battle law of fighting fire with fire, the following treatment measures can be selected according to the actual situation of the fire scene:
s4, closing a water inlet switch of the movable pulse air pressure spraying water gun and detaching an atomizing nozzle; installing a longitudinal fire tool in the launching tube, and pulling a trigger of the pulse gun to open the air valve; the longitudinal fire is launched in front of the spread of the strong fire head close to the fire scene to actively ignite combustible substances, so that the actively ignited fire head collides with the strong fire head of the fire scene, and the spread speed of the strong fire head of the fire scene is reduced.
Due to the influences of factors such as vegetation coverage conditions and geographical position conditions in various places of forests, the fire intensity of each fire head in a fire scene is different, strong fire heads are generated at the dry and dense vegetation positions, the strong fire heads are high in flame and high in spreading speed, the spreading speed of the strong fire heads is too high, and control is needed to ensure the safety of implementation personnel, so that combustible substances are actively ignited in front of the strong fire heads, the actively ignited fire collides with the strong fire heads, the fire intensity of the strong fire heads is weakened, the spreading speed of the strong fire heads is reduced, and the implementation safety can be ensured; the following procedure S5 can be adopted to cope with a strong fire head:
s5, closing a water inlet switch of the movable pulse air pressure spraying water gun and detaching an atomizing nozzle; installing a fire extinguishing bomb in the launching tube, and pulling a trigger of the pulse gun to open the air valve; fire extinguishing bomb is launched in front of the fire head spread close to the fire scene to scatter the fire head of the fire scene and reduce the intensity of the fire head of the fire field.
The fire extinguishing bomb can extinguish fire in an area of about 500 square meters, effectively scatter the strong fire head, weaken the fire of the strong fire head, reduce the spreading speed of the strong fire head and ensure the implementation safety; and can be used for treating strong fire head.
The fire extinguishing method can be suitable for the conditions that forest fire intensity is high, spreading speed is high, and fire extinguishing team members cannot approach a fire scene, and the pulse water gun has the advantages of stable multifunctionality, stable gas pressure intensity and high pressure, and provides effective guarantee for the method for fighting fire with fire. The successful burning can achieve the effect of extinguishing fire with twice the result of half the effort; and key targets can be effectively protected from being damaged.
The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.

Claims (7)

1. Portable pulse atmospheric pressure spraying squirt, its characterized in that: comprises a pulse gun (1), a high-pressure water pump (3) for supplying water to the pulse gun (1) through a water hose (2), and a gas cylinder (5) for supplying gas to the pulse gun (1) through a high-pressure gas hose (4); a water inlet switch (6) is arranged on the water delivery hose (2); a pressure reducer (7) is arranged on the high-pressure gas transmission hose (4);
the pulse gun (1) is provided with an air cylinder (8) and a transmitting cylinder (9); an air valve is arranged between the air cylinder (8) and the transmitting cylinder (9), and the air valve is controlled to be opened or closed by a trigger structure (10) arranged at the bottom of the air cylinder (8); the high-pressure gas transmission hose (4) is connected to the side wall of the gas cylinder (8); the water delivery hose (2) is connected to the side wall of the launch canister (9); the front end of the launching tube (9) is detachably provided with an atomizing nozzle (11), and the launching tube (9) is also used for installing a fire extinguishing bomb (12) and a longitudinal fire tool;
the air valve comprises a valve seat (13) and a valve core (14), and the valve seat (13) is fixedly arranged in the launching barrel (9); an airflow outlet (15) is formed in the center of the valve seat (13); the valve core (14) is pressed against the middle part of the side surface of the valve seat (13) through a spring (16), and the other end of the spring (16) is connected with a trigger structure (10); an airflow groove (17) is formed in the side face of the valve seat (13) and around the valve core (14); a groove (18) is formed in the valve core (14) at a position corresponding to the position between the airflow groove (17) and the airflow outlet (15); a sealing ring (19) is arranged in the valve core (14) corresponding to the groove (18) and used for closing the air valve when the spring (16) is compressed; the wall of the airflow groove (17) is an arc-shaped wall;
the pressure reducer includes: a gas distribution part (30) and a pressure regulating part (31) matched and connected with the gas distribution part (30);
the air distribution part (30) is provided with an air inlet channel (32), an air outlet channel (33) and an air distribution groove (34) communicated with the air inlet channel (32) and the air outlet channel (33); a gas distribution unit is arranged in the gas distribution groove (34); one end of the air distribution unit, which is relatively close to the air inlet channel (32), is provided with an accommodating groove (35), and one end of the air distribution unit, which is relatively far away from the air inlet channel (32), is provided with a pressure regulating groove (36); the accommodating groove (35) is communicated with the pressure regulating groove (36) through an introducing channel (37); the same end of the air distribution unit and the pressure regulating groove (36) is provided with an air guide channel (38) which penetrates through the pressure regulating groove (36); a gas distribution core (39) is arranged in the accommodating groove (35), and an air inlet elastic part (40) is arranged between the gas distribution core (39) and the air inlet channel (32); the air distribution unit further comprises: one end of the pressure regulating part can sequentially penetrate through the pressure regulating groove (36) and the introducing channel (37) and can enter the pressure bearing part (41) in the accommodating groove (35);
the free end of the gas distribution groove (34) is also provided with a pressure regulating cover (42) which can move along the axis of the inner wall of the gas distribution groove (34); one end of the pressure regulating cover (42) relatively close to the air distribution unit is provided with an outer air guide groove (43) capable of accommodating the air distribution unit;
one end of the pressure regulating part (31) relatively close to the gas distribution groove (34) is fixedly connected with the outer wall of the gas distribution groove (34); a pressure regulating unit is arranged in the pressure regulating part (31); the pressure regulating unit comprises a pressure regulating cover (44) matched and connected with the inner wall of the pressure regulating part (31), and a pressure regulating spring (45) is arranged between the pressure regulating cover (42) and the pressure regulating cover (44);
a pressure regulating protrusion (46) is arranged at one end, entering the accommodating groove (35), of the pressure bearing part (41), and a pressure regulating groove (47) matched with the pressure regulating protrusion (46) is arranged on the gas distribution core (39);
an annular bulge (48) communicated with the introducing channel (37) is arranged on the groove wall of the accommodating groove (35) communicated with the introducing channel (37); and a pressure bearing plate (49) is arranged at one end of the pressure bearing part (41) relatively close to the pressure regulating cover (42).
2. A mobile pulsed air pressure spray water gun as claimed in claim 1, wherein: the switch that intakes includes: the water inlet valve comprises a water inlet valve rod (20) and a water inlet valve sleeve (21) which is sleeved on the outer wall of the water inlet valve rod (20) and can slide along the outer wall of the water inlet valve sleeve;
a water inlet pipeline (22) and a water drainage pipeline (23) are arranged in the water inlet valve rod (20); a first notch (24) communicated with the water inlet pipeline (22) is formed in one end, close to the water drainage pipeline (23), of the water inlet pipeline (22), and a second notch (25) communicated with the water inlet pipeline (22) is formed in one end, close to the water inlet pipeline (22), of the water drainage pipeline (23);
a water supply cavity (26) and a water stop cavity (27) are arranged in the water inlet valve sleeve (21); the diameter of the water supply cavity (26) is larger than that of the water inlet valve rod (20), and the water stop cavity (27) just can cover the water inlet valve rod (20).
3. A mobile pulsed air pressure spray water gun as claimed in claim 2, wherein: a stop ring (28) for limiting the displacement of the water inlet valve sleeve (21) is arranged at one end of the water inlet valve rod (20) relatively far away from the drainage pipeline (23); and a stop groove (29) for limiting the displacement of the water inlet valve sleeve (21) is arranged at one end of the water inlet valve rod (20) relatively far away from the water inlet pipeline (22).
4. A method of extinguishing a fire, comprising the steps of:
within a safe distance in front of the fire field spreading direction: initiatively igniting combustible materials one by one along the ignition direction to form ignition areas one by one; the firing direction is approximately parallel to the edge of the fire scene;
opening a water inlet switch of the mobile pulse air pressure spray water gun according to any one of claims 1 to 3, installing an atomizing nozzle, and pulling a trigger of the pulse gun to open an air valve; along the ignition direction, the fire in the ignition area and the area of the ignition area far away from the fire scene direction is sprayed out by atomized water; the fire in each ignition area close to the fire scene direction spreads towards the fire scene direction, and a 3-5 m wide fire-retardant burning area is formed on the connecting line of each ignition area;
the wind power fire extinguisher is adopted to control the spread of the ignition fire head to the fire field direction to collide with the fire head of the fire field so as to extinguish the fire head of the fire field.
5. The fire extinguishing method according to claim 4, wherein a connecting line of centers of adjacent burning zones forms a unit burning line; all the unit point-burning lines form a saw-tooth shape.
6. The method of extinguishing a fire of claim 4, further comprising:
the water inlet switch of the mobile pulse air pressure spray water gun of any one of claims 1 to 3 is closed, and the atomizing nozzle is detached; installing a longitudinal fire tool in the launching tube, and pulling a trigger of the pulse gun to open the air valve; the longitudinal fire is launched in front of the spread of the strong fire head close to the fire scene to actively ignite combustible substances, so that the actively ignited fire head collides with the strong fire head of the fire scene, and the spread speed of the strong fire head of the fire scene is reduced.
7. The method of extinguishing a fire of claim 4, further comprising:
the water inlet switch of the mobile pulse air pressure spray water gun of any one of claims 1 to 3 is closed, and the atomizing nozzle is detached; installing a fire extinguishing bomb in the launching tube, and pulling a trigger of the pulse gun to open the air valve; fire extinguishing bomb is launched in front of the fire head spread close to the fire scene to scatter the fire head of the fire scene and reduce the intensity of the fire head of the fire field.
CN202010218481.9A 2020-03-25 2020-03-25 Movable pulse air pressure spray water gun and fire extinguishing method Active CN111494836B (en)

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CN204170327U (en) * 2014-09-19 2015-02-25 北京九州尚阳科技有限公司 A kind of multi-pipe impulse water spray installation
CN206444043U (en) * 2016-12-28 2017-08-29 北京九州尚阳科技有限公司 A kind of wireless remote control pulse rifle
CN110630792A (en) * 2019-08-29 2019-12-31 南京伟易达机电科技发展有限公司 Gas regulator
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CN200942252Y (en) * 2006-08-21 2007-09-05 北京天龙万安消防装备科技有限公司 Pulse spraying gun with respirator
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CN203202263U (en) * 2013-04-18 2013-09-18 济南易恒技术有限公司 Slide valve for refrigerant filling gun
CN204170327U (en) * 2014-09-19 2015-02-25 北京九州尚阳科技有限公司 A kind of multi-pipe impulse water spray installation
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