CN114053635A - Handheld foam fire extinguishing gun and application thereof - Google Patents
Handheld foam fire extinguishing gun and application thereof Download PDFInfo
- Publication number
- CN114053635A CN114053635A CN202111461489.9A CN202111461489A CN114053635A CN 114053635 A CN114053635 A CN 114053635A CN 202111461489 A CN202111461489 A CN 202111461489A CN 114053635 A CN114053635 A CN 114053635A
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- water
- pipe
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- fire
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C17/00—Hand fire-extinguishers essentially in the form of pistols or rifles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
- A62C5/022—Making of fire-extinguishing materials immediately before use of foam with air or gas present as such
- A62C5/024—Apparatus in the form of pipes
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
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Abstract
The invention relates to a handheld foam fire extinguishing gun and application thereof; the foam regulating section is provided with a first handle, the first handle is provided with a foam conveying pipe and a regulating valve, the gas-liquid mixing section is provided with a water inlet pipeline and a shunt water pipe which are mutually communicated, the water inlet pipeline is provided with a water valve and a pressure gauge, the water inlet pipeline is communicated with the gas-liquid mixing section and conveys water into the foaming pipe through the gas-liquid mixing section, the shunt water pipe and the foam conveying pipe are both connected with a Venturi pipe positioned in the foam regulating section, and the Venturi pipe is provided with a mixed liquid pipe extending to the inside of the gas-liquid mixing section; the beneficial effects of the invention are as follows: but through set up foam liquid conveying assembly and the water supply subassembly of independent control respectively on the foam regulation section to realize the regulation of foam proportion, greatly improved the foam expansion, and reduce the loss of pressure by a wide margin, improve the fire extinguishing performance, convenient to use, the practicality is strong.
Description
Technical Field
The invention relates to a fire-fighting facility, in particular to a handheld foam fire-extinguishing gun capable of effectively adjusting the mixing ratio of water quantity and foam quantity and application thereof.
Background
The foam gun belongs to one of the conventional convenient fire extinguishing devices, generally, a Venturi tube is embedded in a water flow channel, foam stock solution is sucked by negative pressure to be mixed with water, and the mixture is sprayed out by a nozzle and then mixed with air to generate foam for fire extinguishing.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a fire fighting facility, in particular to a handheld foam fire extinguishing gun capable of effectively adjusting the water quantity and the foam quantity mixing ratio and application thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: a hand-held foam fire extinguishing gun comprises a foam adjusting section, a gas-liquid mixing section and a foaming pipe which are sequentially connected and mutually communicated, wherein the foam adjusting section is provided with a first handle, the first handle is provided with a foam conveying pipe for conveying foam liquid and a regulating valve for regulating the input proportion of the foam liquid, the gas-liquid mixing section is provided with a water inlet pipe and a diversion water pipe which are mutually communicated, the water inlet pipe is provided with a water valve for controlling the water supply amount and a pressure gauge for displaying the water pressure, the water inlet pipe is communicated with the gas-liquid mixing section and conveys the water into the foaming pipe through the gas-liquid mixing section, the diversion water pipe and the foam conveying pipe are both connected with a Venturi pipe which is positioned inside the foam adjusting section, the Venturi pipe is provided with a mixed liquid pipe which extends to the inside of the gas-liquid mixing section so as to convey the mixed liquid of the foam liquid and the water into the foaming pipe through the gas-liquid mixing section through the mixed liquid pipe, and is ejected from the ejection port of the foaming pipe.
Preferably, the foam adjusting section is provided with an air inlet end, the air inlet end is provided with an end cover, and the end cover is provided with an air inlet communicated with the foam adjusting section.
Preferably, the first handle is provided with a quick-connection inlet for inputting foam concentrate, one end of the quick-connection inlet is connected with the foam conveying pipe, and the other end of the quick-connection inlet is connected with a foam concentrate supply source.
Preferably, the gas-liquid mixing section includes a first pipe and a second pipe, the first pipe is provided with a connector located outside the first pipe and a first mandrel located inside the first pipe, the connector is communicated with the inside of the first pipe and connected to the water inlet pipe, one end of the second pipe is inserted into the first pipe, the other end of the second pipe is sleeved outside the foaming pipe, the second pipe is provided with a second mandrel extending inside the first pipe, the first mandrel and the second mandrel are butted with each other and form an annular water flow passage with the pipe wall of the first pipe, the first connecting end is provided with at least one inclined water spraying hole, one end of the inclined water spraying hole is communicated with the annular water flow passage, and the other end of the inclined water spraying hole is communicated with the inside of the second pipe.
Preferably, the inner side portion of the first mandrel is provided with a positioning block, the positioning block is provided with a shunting port for installing a shunting water pipe and a fixing hole for installing a mixed liquid pipe, and the shunting port is communicated with the annular water flow channel.
Preferably, a second handle is arranged on the outer side of the second pipe body.
Preferably, the water inlet pipeline is connected with a fire-fighting water supply device.
A fire extinguishing method of a handheld foam fire extinguishing gun comprises the following steps:
(1) opening a water valve, feeding fire fighting water into a water inlet pipeline by fire fighting water supply equipment, enabling the water to enter from the water inlet pipeline and enter a gas-liquid mixing section through the water valve, dividing the fire fighting water into two paths, enabling one path of fire fighting water to enter an inner cavity of a foaming pipe and enabling the other path of fire fighting water to enter a Venturi tube;
(2) opening the regulating valve, allowing foam liquid to enter the foam conveying pipe, sucking the foam liquid into the Venturi tube by negative pressure, mixing the foam liquid with the fire water to form a mixed liquid, allowing the mixed liquid to flow into the mixed liquid pipe, spraying the mixed liquid into the gas-liquid mixing section by the nozzle, and allowing the mixed liquid to enter the foaming pipe;
(3) and (3) secondary mixing, namely, air enters an internal air flow channel of the gas-liquid mixing section from the air inlet, is mixed with water and the mixed liquid in the inner cavity of the foaming pipe to form foam, and is finally sprayed out from the spraying port of the foaming pipe to realize foam fire extinguishing.
Preferably, the specific splitting process in the step (1) is as follows: after the fire-fighting water flows into the annular water flow channel, the fire-fighting water is divided into two paths, one path of fire-fighting water enters the inside of the second pipe body through the water spraying inclined hole and enters the inner cavity of the foaming pipe, and the other path of fire-fighting water enters the flow dividing water pipe through the flow dividing port and enters the venturi pipe through the flow dividing water pipe.
The beneficial effects of the invention are as follows: the invention aims to provide a handheld foam fire extinguishing gun and application thereof.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a sectional view of the overall structure of the present invention.
Fig. 3 is a schematic structural diagram of the first tube according to the present invention.
Fig. 4 is a schematic structural view of a second tube according to the present invention.
FIG. 5 is a cross-sectional view of the gas-liquid mixing section of the present invention.
FIG. 6 is a schematic view of the structure of the foam conditioning segment of the present invention.
Reference is made to the accompanying drawings in which:
1-a foam conditioning section; 2-a gas-liquid mixing section; 3-a foam tube; 4-a first handle; 5-a foam delivery pipe; 6-adjusting the valve; 7-a water inlet pipeline; 8-a diversion water pipe; 9-a water valve; 10-pressure gauge; 11-a venturi tube; 12-a mixed liquor pipe; 13-end cap; 14-an air inlet; 15-quick connection of an inlet; 16-a first tube; 17-a second tube; 18-a connector; 19-a first mandrel; 20-a second mandrel; 21-an annular water flow channel; 22-inclined water spraying holes; 23-positioning blocks; 24-a shunt port; 25-a fixation hole; 26-a second handle; 27-the ejection orifice.
Detailed Description
In the following description, any concept relating to the directionality or orientation of up, down, left, right, front and rear is given with respect to the position shown in the drawings being described, and thus should not be construed as particularly limiting the technical solution provided by the present invention.
The following detailed description of embodiments of the invention refers to the accompanying drawings:
as shown in fig. 1-6, a hand-held foam fire extinguishing gun comprises a foam adjusting section 1, a gas-liquid mixing section 2 and a foaming pipe 3 which are connected in sequence and are communicated with each other, wherein the foam adjusting section 1 is provided with a first handle 4, the first handle 4 is provided with a foam conveying pipe 5 for conveying foam liquid and a regulating valve 6 for regulating the input proportion of the foam liquid, the gas-liquid mixing section 2 is provided with a water inlet pipe 7 and a diversion pipe 8 which are communicated with each other, the water inlet pipe 7 is provided with a water valve 9 for controlling the water supply amount and a pressure gauge 10 for displaying the water pressure, the water inlet pipe 7 is communicated with the gas-liquid mixing section 2 and conveys water into the foaming pipe 3 through the gas-liquid mixing section 2, the diversion pipe 8 and the foam conveying pipe 5 are both connected with a venturi pipe 11 positioned inside the foam adjusting section 1, the venturi pipe 11 is provided with a mixed liquid pipe 12 extending into the gas-liquid mixing section 2, so that the mixed liquid of foam liquid and water is sent to the foaming tube 3 through the gas-liquid mixing section 2 via the mixed liquid pipe 12 and is ejected from the ejection port 27 of the foaming tube 3.
Preferably, the foam adjusting section 1 is provided with an air inlet end, the air inlet end is provided with an end cover 13, and the end cover 13 is provided with an air inlet 14 communicated with the foam adjusting section 1.
Preferably, the first handle 4 is provided with a quick-connection inlet 15 for inputting foam concentrate, one end of the quick-connection inlet 15 is connected with the foam conveying pipe 5, and the other end is connected with a foam concentrate supply source.
Preferably, the gas-liquid mixing section 2 comprises a first pipe 16 and a second pipe 17, the first pipe 16 is provided with a connector 18 positioned at the outer side thereof and a first mandrel 19 positioned at the inner side thereof, the connector 18 is communicated with the inside of the first pipe 16, and is connected with the water inlet pipe 7, one end of the second pipe body 17 is inserted into the first pipe body 16, the other end is sleeved outside the foaming pipe 3, the second tube 17 is provided with a second mandrel 20 extending inside the first tube 16, the first mandrel 19 and the second mandrel 20 are butted against each other, and forms an annular water flow channel 21 with the pipe wall of the first pipe body 16, the first connecting end is provided with at least one water spraying inclined hole 22, one end of the inclined water spraying hole 22 is communicated with the annular water flow passage 21, and the other end is communicated with the inside of the second pipe body 17.
Preferably, a positioning block 23 is disposed on an inner side portion of the first mandrel 19, the positioning block 23 is provided with a diversion port 24 for installing the diversion water pipe 8 and a fixing hole 25 for installing the mixture pipe 12, and the diversion port 24 is communicated with the annular water flow passage 21.
Preferably, a second handle 26 is disposed outside the second tube 17.
Preferably, the water inlet pipe 7 is connected with a fire-fighting water supply device.
A fire extinguishing method of a handheld foam fire extinguishing gun comprises the following steps:
(1) the water valve 9 is opened, fire fighting water is fed into the water inlet pipeline 7 by the fire fighting water supply equipment, water enters from the water inlet pipeline 7 and enters the gas-liquid mixing section 2 through the water valve 9, the fire fighting water is divided into two paths, one path of fire fighting water enters the inner cavity of the foaming pipe 3, and the other path of fire fighting water enters the venturi tube 11;
(2) opening the regulating valve 6, allowing the foam liquid to enter the foam delivery pipe 5, sucking the foam liquid into the venturi tube 11 by negative pressure, mixing the foam liquid with the fire water to form a mixed liquid, allowing the mixed liquid to flow into the mixed liquid pipe 12, spraying the mixed liquid into the gas-liquid mixing section 2 by a nozzle, and allowing the mixed liquid to enter the foaming pipe 3;
(3) and (3) secondary mixing, wherein air enters the internal air flow channel of the gas-liquid mixing section 2 from the air inlet 14, is mixed with water and the mixed liquid in the inner cavity of the foaming pipe 3 to form foam, and is finally sprayed out from the spraying opening 27 of the foaming pipe 3 to realize foam fire extinguishing.
Preferably, the specific splitting process in the step (1) is as follows: after the fire water flows into annular water flow channel 21, the fire water is divided into two ways, one way of fire water enters into the inside of second body 17 through water spray inclined hole 22 to enter into the inner cavity of foaming pipe 3, and the other way of fire water enters into shunting water pipe 8 through shunting port 24 and enters into venturi pipe 11 through shunting water pipe 8.
When the handheld foam fire extinguishing gun is used, the water valve 9 and the regulating valve 6 are opened simultaneously, and the water valve 9 and the regulating valve 6 respectively control the proportioning of fire fighting water and foam concentrate, so that the fire fighting water and the foam concentrate respectively flow into the foam regulating section 1 in specific proportioning and are mixed.
Further, after opening water valve 9, fire water is sent into to inlet channel 7 by the fire control water supply equipment, water flows into inlet channel 7 from the water inlet of inlet channel 7, and enter into gas-liquid mixing section 2 through water valve 9, fire water is when getting into gas-liquid mixing section 2, after flowing into annular water runner 21, fire water is divided into two the tunnel, fire water enters into the inside of second body 17 through water spray inclined hole 22 all the way, and enter into the inner chamber of foaming pipe 3, another fire water then enters into reposition of redundant personnel water pipe 8 through reposition of redundant personnel mouth 24, get into venturi 11 department through reposition of redundant personnel water pipe 8.
Furthermore, after the adjusting valve 6 is opened, the foam liquid supply source enters the foam conveying pipe 5 through the quick-connection inlet 15 and is sucked into the venturi pipe 11 by negative pressure to be mixed with the fire water, so that a mixed liquid of water and foam is formed, the venturi pipe 11 is provided with a mixed liquid pipe 12 fixed in the gas-liquid mixing section 2, the foam mixed liquid flows into the mixed liquid pipe 12 on the venturi pipe 11 and is sprayed into the gas-liquid mixing section 2 through a foam liquid nozzle on the mixed liquid pipe 12, and then enters the inner cavity of the foam pipe 3, meanwhile, air enters the inner air flow channel of the gas-liquid mixing section 2 from an air inlet 14 on the end cover 13, and is mixed with the mixed liquid of water and foam in the inner cavity of the foam pipe 3 to form foam, and finally, the foam is sprayed out from the spray opening 27 of the foam pipe 3, so that foam fire extinguishing is realized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, and those skilled in the art may make modifications and variations within the spirit of the present invention, and all modifications, equivalents and modifications of the above embodiments according to the technical spirit of the present invention are within the scope of the present invention.
Claims (9)
1. A hand-held type foam fire gun which characterized in that: the foam adjusting section is provided with a first handle, the first handle is provided with a foam conveying pipe for conveying foam liquid and a regulating valve for regulating the input proportion of the foam liquid, the gas-liquid mixing section is provided with a water inlet pipeline and a diversion water pipe which are mutually communicated, the water inlet pipeline is provided with a water valve for controlling water supply and a pressure gauge for displaying water pressure, the water inlet pipeline is communicated with the gas-liquid mixing section and sends water into the foaming pipe through the gas-liquid mixing section, the diversion water pipe and the foam conveying pipe are both connected with a Venturi tube positioned in the foam adjusting section, the Venturi tube is provided with a mixed liquid pipe extending to the inside of the gas-liquid mixing section so as to send the mixed liquid of the foam liquid and the water into the foaming pipe through the gas-liquid mixing section through the mixed liquid pipe, and is ejected from the ejection port of the foaming pipe.
2. The hand-held foam fire gun of claim 1, wherein: the foam adjusting section is provided with an air inlet end, the air inlet end is provided with an end cover, and the end cover is provided with an air inlet communicated with the foam adjusting section.
3. The hand-held foam fire gun of claim 1, wherein: the first handle is provided with a quick-connection inlet for inputting foam liquid, one end of the quick-connection inlet is connected with the foam conveying pipe, and the other end of the quick-connection inlet is connected with a foam liquid supply source.
4. The hand-held foam fire gun of claim 1, wherein: the gas-liquid mixing section comprises a first pipe body and a second pipe body, the first pipe body is provided with a connector located on the outer side of the first pipe body and a first mandrel located on the inner side of the first pipe body, the connector is communicated with the inside of the first pipe body and is connected with the water inlet pipeline, one end of the second pipe body is inserted into the first pipe body, the other end of the second pipe body is sleeved on the outer side of the foaming pipe, the second pipe body is provided with a second mandrel extending to the inside of the first pipe body, the first mandrel and the second mandrel are mutually butted and form an annular water flow channel with the pipe wall of the first pipe body, the first connecting end is provided with at least one water spraying inclined hole, one end of the water spraying inclined hole is communicated with the annular water flow channel, and the other end of the water spraying inclined hole is communicated with the inside of the second pipe body.
5. The hand-held foam fire gun of claim 4, wherein: the inside portion of first dabber is provided with the locating piece, the locating piece is provided with and is used for the installation the diffluence pass of reposition of redundant personnel water pipe and be used for the installation the fixed orifices of mixture pipe, the diffluence pass with the annular water runner is linked together.
6. The hand-held foam fire gun of claim 4, wherein: and a second handle is arranged on the outer side of the second pipe body.
7. The hand-held foam fire gun of claim 1, wherein: the water inlet pipeline is connected with the fire-fighting water supply equipment.
8. The fire extinguishing method of the hand-held foam fire gun according to any one of claims 1 to 7, wherein: the method comprises the following steps:
(1) opening a water valve, feeding fire fighting water into a water inlet pipeline by fire fighting water supply equipment, enabling the water to enter from the water inlet pipeline and enter a gas-liquid mixing section through the water valve, dividing the fire fighting water into two paths, enabling one path of fire fighting water to enter an inner cavity of a foaming pipe and enabling the other path of fire fighting water to enter a Venturi tube;
(2) opening the regulating valve, allowing foam liquid to enter the foam conveying pipe, sucking the foam liquid into the Venturi tube by negative pressure, mixing the foam liquid with the fire water to form a mixed liquid, allowing the mixed liquid to flow into the mixed liquid pipe, spraying the mixed liquid into the gas-liquid mixing section by the nozzle, and allowing the mixed liquid to enter the foaming pipe;
(3) and (3) secondary mixing, namely, air enters an internal air flow channel of the gas-liquid mixing section from the air inlet, is mixed with water and the mixed liquid in the inner cavity of the foaming pipe to form foam, and is finally sprayed out from the spraying port of the foaming pipe to realize foam fire extinguishing.
9. The fire extinguishing method of the hand-held foam fire gun according to claim 8, wherein: the specific shunting process in the step (1) is as follows: after the fire-fighting water flows into the annular water flow channel, the fire-fighting water is divided into two paths, one path of fire-fighting water enters the inside of the second pipe body through the water spraying inclined hole and enters the inner cavity of the foaming pipe, and the other path of fire-fighting water enters the flow dividing water pipe through the flow dividing port and enters the venturi pipe through the flow dividing water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111461489.9A CN114053635A (en) | 2021-12-02 | 2021-12-02 | Handheld foam fire extinguishing gun and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111461489.9A CN114053635A (en) | 2021-12-02 | 2021-12-02 | Handheld foam fire extinguishing gun and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114053635A true CN114053635A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111461489.9A Pending CN114053635A (en) | 2021-12-02 | 2021-12-02 | Handheld foam fire extinguishing gun and application thereof |
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| CN (1) | CN114053635A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027293A1 (en) * | 2022-08-05 | 2024-02-08 | 绿友机械集团股份有限公司 | Dual-layer jet fire-fighting foam producing and spraying device |
-
2021
- 2021-12-02 CN CN202111461489.9A patent/CN114053635A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024027293A1 (en) * | 2022-08-05 | 2024-02-08 | 绿友机械集团股份有限公司 | Dual-layer jet fire-fighting foam producing and spraying device |
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