CN211885033U - Novel clean gaseous fire extinguishing agent experiment is put out a fire device - Google Patents

Novel clean gaseous fire extinguishing agent experiment is put out a fire device Download PDF

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Publication number
CN211885033U
CN211885033U CN202020232635.5U CN202020232635U CN211885033U CN 211885033 U CN211885033 U CN 211885033U CN 202020232635 U CN202020232635 U CN 202020232635U CN 211885033 U CN211885033 U CN 211885033U
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CN
China
Prior art keywords
fire extinguishing
extinguishing agent
experiment
pressure nitrogen
channel plate
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Expired - Fee Related
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CN202020232635.5U
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Chinese (zh)
Inventor
贺元骅
沈俊杰
郭君
王茂华
郑永军
陈现涛
王海斌
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Civil Aviation Flight University of China
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Civil Aviation Flight University of China
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Priority to CN202020232635.5U priority Critical patent/CN211885033U/en
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Abstract

The utility model discloses a novel clean gaseous fire extinguishing agent experiment fire extinguishing device, include: the experimental cabin is internally provided with a closed experimental space; the experiment bracket is arranged in the experiment cabin and used for clamping and fixing the lithium ion battery; the high-pressure nitrogen cylinder is used for outputting high-pressure nitrogen; the fire extinguishing agent storage tank is used for storing a fire extinguishing agent and is connected with the high-pressure nitrogen cylinder through a pipeline so as to receive the high-pressure nitrogen and then output the fire extinguishing agent; the spraying device is arranged in the experiment cabin and above the experiment support, and is connected with the fire extinguishing agent storage tank through a pipeline so as to receive the output fire extinguishing agent and spray the fire extinguishing agent onto the lithium ion battery on the experiment support; the spraying device comprises a spray head and five spray nozzles. The utility model discloses a novel clean gaseous fire extinguishing agent experiment fire extinguishing device, through the setting of high-pressure nitrogen cylinder and fire extinguishing agent storage tank, alright realize utilizing pressure output's mode to realize putting the device to spouting the control of putting speed.

Description

Novel clean gaseous fire extinguishing agent experiment is put out a fire device
Technical Field
The utility model relates to an experiment extinguishing device, more specifically the novel clean gaseous fire extinguishing agent experiment extinguishing device that says so relates to.
Background
In recent years, with the widespread use of various lithium ion batteries, fire caused by thermal runaway of the lithium ion batteries sometimes occurs, and the safety problem is increasingly prominent. In addition, with the gradual production stop and elimination of the Halon (Halon 1211 and Halon 1301) fire extinguishing agents, a plurality of novel clean fire extinguishing agents for replacing Halon (Halon) are gradually released. Therefore, around the research direction of lithium ion battery fire extinguishing, how to effectively and timely suppress and extinguish lithium ion battery fire is that many domestic and foreign experts and scholars use various novel clean extinguishing agents to develop a large amount of experimental researches on suppressing and extinguishing lithium ion battery fire. The novel clean fire extinguishing agent comprises Novec1230 (perfluorohexanone), HFC-227ea (heptafluoropropane), 2-BTP (bromine-3, 3,3 trifluoropropene) and the like, has the characteristics of no color, transparency, easy gasification, easy decomposition and small pollution, is stored in a pressure container in a liquid state, is sprayed and atomized under the action of high-pressure gas and quickly vaporized when released, and extinguishes fire by a mechanism of reducing free radicals through chemical inhibition and absorbing heat and cooling.
The fire extinguishing agent filling and spraying device in the fire extinguishing experiment of the gas fire extinguishing agent is the core equipment of the experiment, and is related to the accuracy and the success rate of the experiment. Most of the existing technologies are gas extinguishing devices actually applied to public places, and are only suitable for large-area fire extinguishing needs of large space areas, the dosage of once spraying is too large, the dosage and the pressure are difficult to accurately control, the reaction speed of spraying the fire extinguishing agent is not fast enough, the experiment accuracy is not high, the experiment success rate is low, the requirements of experimental design are not met, and the gas extinguishing agent is not suitable for lithium ion battery fire suppression experiments.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide an accurate control spouts puts dosage and pressure, and the fire extinguishing agent spouts the quick novel clean gaseous fire extinguishing agent experiment extinguishing device of reaction rate who puts.
In order to achieve the above purpose, the utility model provides a following technical scheme: a novel clean gaseous extinguishing agent experiment fire extinguishing device includes:
the experimental cabin is internally provided with a closed experimental space;
the experiment bracket is arranged in the experiment cabin and used for clamping and fixing the lithium ion battery;
the high-pressure nitrogen cylinder is used for outputting high-pressure nitrogen;
the fire extinguishing agent storage tank is used for storing a fire extinguishing agent and is connected with the high-pressure nitrogen cylinder through a pipeline so as to receive the high-pressure nitrogen and then output the fire extinguishing agent;
the spraying device is arranged in the experiment cabin and above the experiment support, and is connected with the fire extinguishing agent storage tank through a pipeline so as to receive the output fire extinguishing agent and spray the fire extinguishing agent onto the lithium ion battery on the experiment support;
the spraying device comprises a spray head and five nozzles, the spray head is in a hollow inverted trapezoid shape, the upper end of the spray head is connected with a fire extinguishing agent storage tank through a pipeline, the lower end face of the spray head is provided with bottom nozzles, and the five nozzles are distributed on the side face of the spray head one by one at intervals.
As a further improvement, the fire extinguishing agent storage tank comprises a tank body, an intake pipe and a drain pipe, the one end of the intake pipe is connected to the upper end of the tank body, the other end is connected with a high-pressure nitrogen cylinder, the one end of the drain pipe is connected to the upper end of the tank body, and the other end of the drain pipe extends downwards to the bottom of the tank body and is connected with a distribution valve and then is connected with a spray head through a pipeline.
As a further improvement of the utility model, the blending valve comprises a valve body and a communicating pipeline arranged in the valve body, the communicating pipeline comprises an upper channel plate and a lower channel plate, one end of the upper channel plate and one end of the lower channel plate are respectively hinged on the inner side walls of the upper side and the lower side of the valve body, the upper channel plate and the lower channel plate are connected through elastic sealing cloth, so as to form a channel structure, a plurality of buttons are distributed on the valve body, each button comprises a pressing part and a triggering part which are integrally arranged, the pressing part penetrates out of the valve body to the outside, the triggering part is hinged with the plate surfaces of the upper channel plate and the lower channel plate, a through hole for the button to penetrate through is arranged on the position of the valve body corresponding to the button, the caulking groove is formed in the hole wall of the through hole, the elastic bead is arranged on the outer side wall of the pressing portion, and when the elastic bead is embedded into the caulking groove, the button is positioned.
As a further improvement, the spout internal fixation has the atomizing net, the atomizing net includes net frame and a plurality of net lines of setting in the net frame, the net frame gomphosis is fixed in the spout, rotatable two mutual coaxial constitution frames that are equipped with in the net frame, the net line includes horizontal line and vertical line, the both ends of horizontal line and vertical line are fixed respectively on two inside walls of constituteing the frame to crisscross constitution grid structure each other.
As a further improvement of the utility model, the pressing part of the button is fixed with a lantern ring for the finger of a person to pass through.
The beneficial effects of the utility model are that the three sets of devices of fire extinguishing agent filling, high-pressure nitrogen filling and fire extinguishing agent spraying are integrated, so that the device can be better suitable for fire extinguishing experiments of novel clean gas fire extinguishing agents repeated for many times under the same experimental working condition; the dosage and pressure of the fire extinguishing agent can be adjusted according to the experimental requirements; the gas extinguishing agent is atomized at high pressure by a six-hole conical nozzle at 0 degree to cover open fire, so that rapid fire extinguishing is completed; the fire extinguishing agent starting and spraying device controlled by the solenoid valve also obviously improves the accuracy and the success rate of the experiment.
Drawings
Fig. 1 is a schematic view of an experimental apparatus of the present invention;
FIG. 2 is a schematic block diagram of the fire suppressant storage tank of FIG. 1;
FIG. 3 is a schematic structural view of the dispensing valve of FIG. 2;
FIG. 4 is a schematic view of the structure of the dispensing device of FIG. 1;
fig. 5 is a schematic structural view of the spout of fig. 4.
Detailed Description
The present invention will be described in further detail with reference to embodiments shown in the drawings.
Referring to fig. 1 to 5, the experimental fire extinguishing apparatus for a novel clean gas fire extinguishing agent of the embodiment includes:
the experiment chamber 1 is internally provided with a closed experiment space;
the experiment bracket 2 is arranged in the experiment cabin 1 and used for clamping and fixing the lithium ion battery;
a high-pressure nitrogen gas cylinder 3 for outputting high-pressure nitrogen gas;
the fire extinguishing agent storage tank 4 is used for storing a fire extinguishing agent, is connected with the high-pressure nitrogen cylinder 3 through a pipeline and is used for receiving high-pressure nitrogen and then outputting the fire extinguishing agent;
the spraying device 5 is arranged in the experiment chamber 1 and above the experiment support 2, and the spraying device 5 is connected with the fire extinguishing agent storage tank 4 through a pipeline so as to receive the output fire extinguishing agent and then spray the fire extinguishing agent onto the lithium ion battery on the experiment support 2;
wherein, the device 5 is put including shower nozzle 51 and five spouts 52 to the spout, shower nozzle 51 is hollow inverted trapezoid, and the upper end of this shower nozzle 51 is passed through the pipeline and is connected with fire extinguishing agent storage tank 4, bottom spout 53 has been seted up to the lower terminal surface of shower nozzle 51, five spout 52 every 72 degrees distribute one distribute on the side of shower nozzle 51, fill fire extinguishing agent storage tank 4 earlier before the lithium ion battery fire extinguishing experiment begins, at first close the valve of 5 links of the device that spouts, open and fill device link valve, make the pipeline of connecting high-pressure nitrogen gas bottle 3 and fire extinguishing agent storage tank 4 unblocked. Then 600ml of novel clean gas fire extinguishing agent 2-BTP bromine-3, 3,3 trifluoropropene set by experiments is filled into the fire extinguishing agent storage tank 4 through a filling container on the fire extinguishing agent storage tank 4. And then, filling the high-pressure nitrogen, wherein in order to prevent the pressure in the high-pressure steel pipe of the pressure gauge 2 from being suddenly high, namely, the output pressure reading is inaccurate, when the high-pressure throttle valve of the high-pressure nitrogen cylinder 3 is operated, the flow of the throttling auxiliary valve needs to be regulated to be minimum, and then the main valve is slowly opened. And then, reading the value of the pressure gauge 2 while adjusting the auxiliary valve, and stopping adjusting the auxiliary valve when the value is stabilized at the experimentally set filling pressure value of 2.5 MPa. And (3) filling for 10 minutes according to the setting in the experimental scheme, when a pressure gauge on the storage tank displays that the air pressure in the tank reaches the preset pressure of 2.5Mpa, closing a connecting end valve of the filling device, closing a main throttle valve of the high-pressure nitrogen cylinder 3, and stopping filling the high-pressure nitrogen.
The moment of releasing the gas extinguishing agent is at the moment of explosion of the lithium ion battery. And opening a connecting end valve of the discharge device 5, and when the explosion happens, the sparks are emitted four times, the circuit of the electromagnetic valve for controlling the release of the fire extinguishing agent is closed and electrified, and the fire extinguishing agent discharge device 5 is started instantly. Under the action of high-pressure nitrogen in the tank, the fire extinguishing agent is sprayed out from the six-hole spray head and quickly atomized to form a dense fog-shaped fire extinguishing air mass, and the fire-exploded lithium ion battery is covered by 360 degrees. After 2s, the open fire is immediately extinguished, and then the fire extinguishing agent is continuously sprayed for 10s, so that the fire extinguishing agent is completely released. After the experiment is completed once, the pressure release valve is opened to release the residual gas in the tank, the operation can be repeated, the filling and the spraying are continued, so that the explosion experiment of the lithium ion battery can be effectively completed, and the spraying device 5 is set into a mode of combining the spray head 51 and the five spray nozzles 52, so that the fire extinguishing agent can be effectively sprayed out in an all-round mode, and the fire can be better extinguished.
As a modified embodiment, the fire extinguishing agent storage tank 4 comprises a tank body 41, an air inlet pipe 42 and a liquid outlet pipe 43, wherein one end of the air inlet pipe 42 is connected to the upper end of the tank body 41, the other end of the air inlet pipe is connected with the high-pressure nitrogen gas bottle 3, one end of the liquid outlet pipe 43 is connected to the upper end of the tank body 41, extends downwards to the bottom of the tank body 41, is connected with a blending valve 44 at the other end, and then is connected with a spray head 51 through a pipeline, so that the fire extinguishing agent can be driven to be extruded out of the tank body 41 by means.
As an improved specific embodiment, the blending valve 44 includes a valve body 441 and a communicating pipe 442 disposed in the valve body 441, the communicating pipe 442 includes an upper channel plate 4421 and a lower channel plate 4422, one end of the upper channel plate 4421 and one end of the lower channel plate 4422 are respectively hinged to the inner side walls of the upper side and the lower side of the valve body 441, the upper channel plate 4421 and the lower channel plate 4422 are connected by elastic sealing cloth to form a channel structure, a plurality of buttons 4411 are arranged on the valve body 441, each of the buttons 4411 includes a pressing portion and a triggering portion integrally disposed, the pressing portion penetrates through the valve body 441 to the outside, the triggering portion is hinged to the plate surfaces of the upper channel plate 4421 and the lower channel plate 4422, a through hole for the button 4411 to pass through is formed on the valve body 441 at a position corresponding to the button 4411, a caulking groove is formed on the hole wall of the through hole, an elastic bead is formed on the outer side wall of the pressing, when the elastic beads are embedded into the caulking grooves, the buttons 4411 are positioned, and through the structure, the flow rate of the fluid can be regulated and controlled by utilizing the difference of the channel openings formed at the front end and the rear end of the upper channel plate 4421 and the lower channel plate 4422, and compared with the mode of adopting a valve in the prior art, the fluid passes through the upper channel plate 4421 and the lower channel plate 4422 in a too inclined manner, so that the fluid passes through more smoothly.
As an improved specific embodiment, the atomizing net 521 is fixed in the nozzle 52, the atomizing net 521 includes a net frame 5211 and a plurality of grid lines 5212 arranged in the net frame 5211, the net frame 5211 is embedded and fixed in the nozzle 52, two coaxial component frames 5213 are rotatably arranged in the net frame 5211, the grid lines 5212 include horizontal lines and vertical lines, and two ends of the horizontal lines and the vertical lines are respectively fixed on the inner side walls of the two component frames 5213 to form a grid structure in a mutually staggered manner, so that an adjustable grid structure can be effectively realized, the atomization degree of the finally sprayed fire extinguishing agent is changed, and the fire extinguishing effect of the fire extinguishing agent is further adjusted.
As a modified specific embodiment, a collar for a human finger to pass through is fixed on the pressing portion of the button 4411, and the button 4411 can be pressed down and the structure of being pulled up can be realized by the arrangement of the collar, and the whole structure is simple and easy to realize.
In conclusion, the experiment extinguishing device of this embodiment sets up through the combination of high-pressure nitrogen gas bottle 3, fire extinguishing agent storage tank 4 and jettison device 5, alright realize controlling the output fire extinguishing agent amount of fire extinguishing agent storage tank 4 through the mode of adjusting nitrogen pressure to this realizes the effect that can accurate control.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a novel clean gaseous fire extinguishing agent experiment fire extinguishing device which characterized in that: the method comprises the following steps:
the experiment chamber (1), wherein a closed experiment space is formed in the experiment chamber (1);
the experiment support (2) is arranged in the experiment cabin (1) and used for clamping and fixing the lithium ion battery;
the high-pressure nitrogen cylinder (3) is used for outputting high-pressure nitrogen;
the fire extinguishing agent storage tank (4) is used for storing a fire extinguishing agent and is connected with the high-pressure nitrogen cylinder (3) through a pipeline so as to receive high-pressure nitrogen and then output the fire extinguishing agent;
the spraying device (5) is arranged in the experiment cabin (1) and above the experiment support (2), and the spraying device (5) is connected with the fire extinguishing agent storage tank (4) through a pipeline so as to receive the output fire extinguishing agent and then spray the fire extinguishing agent onto the lithium ion battery on the experiment support (2);
the spraying device (5) comprises a spray head (51) and five nozzles (52), the spray head (51) is in a hollow inverted trapezoid shape, the upper end of the spray head (51) is connected with the fire extinguishing agent storage tank (4) through a pipeline, the lower end face of the spray head (51) is provided with bottom nozzles (53), and the five nozzles (52) are distributed on the side face of the spray head (51) one by one at intervals of 72 degrees.
2. The novel experimental fire extinguishing clean gas fire extinguishing agent device according to claim 1, characterized in that: fire extinguishing agent storage tank (4) are including a jar body (41), intake pipe (42) and drain pipe (43), the one end of intake pipe (42) is connected to the upper end of a jar body (41), and the other end is connected with high-pressure nitrogen gas bottle (3), the one end of drain pipe (43) is connected to the upper end of a jar body (41) to downwardly extending is connected with after allotment valve (44) to jar body (41) bottom other end and is passed through the pipe connection with shower nozzle (51).
3. The novel experimental fire extinguishing clean gas fire extinguishing agent device according to claim 2, characterized in that: the blending valve (44) comprises a valve body (441) and a communicating pipeline (442) arranged in the valve body (441), the communicating pipeline (442) comprises an upper channel plate (4421) and a lower channel plate (4422), one end of the upper channel plate (4421) and one end of the lower channel plate (4422) are respectively hinged on the inner side walls of the upper side and the lower side of the valve body (441), the upper channel plate (4421) and the lower channel plate (4422) are connected through elastic sealing cloth to form a channel structure, a plurality of buttons (4411) are distributed on the valve body (441), the plurality of buttons (4411) respectively comprise a pressing part and a triggering part which are integrally arranged, the pressing part penetrates out of the valve body (441), the triggering part is hinged with the plate surfaces of the upper channel plate (4421) and the lower channel plate (4422), and a through hole for the button (4411) to pass through is formed in the position of the valve body (441) corresponding to the button (4411), the hole wall of the through hole is provided with an embedding groove, the outer side wall of the pressing part is provided with an elastic bead, and when the elastic bead is embedded into the embedding groove, the button (4411) is positioned.
4. A novel experimental fire extinguishing clean gas fire extinguishing agent apparatus according to claim 1, 2 or 3, characterized in that: spout (52) internal fixation has atomizing net (521), atomizing net (521) include net frame (5211) and a plurality of grid line (5212) of setting in net frame (5211), net frame (5211) gomphosis is fixed in spout (52), rotatable being equipped with two mutual coaxial constitution frames (5213) in net frame (5211), grid line (5212) include horizontal line and vertical line, the both ends of horizontal line and vertical line are fixed respectively on two inside walls that constitute frame (5213) to crisscross constitution grid structure each other.
5. The novel experimental fire extinguishing clean gas fire extinguishing agent device according to claim 3, characterized in that: a ring for a finger to pass through is fixed on the pressing part of the button (4411).
CN202020232635.5U 2020-03-01 2020-03-01 Novel clean gaseous fire extinguishing agent experiment is put out a fire device Expired - Fee Related CN211885033U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111214783A (en) * 2020-03-01 2020-06-02 中国民用航空飞行学院 Novel clean gaseous fire extinguishing agent experiment is put out a fire device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111214783A (en) * 2020-03-01 2020-06-02 中国民用航空飞行学院 Novel clean gaseous fire extinguishing agent experiment is put out a fire device

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Granted publication date: 20201110