CN104759050A - Bulk-flow built-in non-premixed compressed air foam extinguishing apparatus - Google Patents
Bulk-flow built-in non-premixed compressed air foam extinguishing apparatus Download PDFInfo
- Publication number
- CN104759050A CN104759050A CN201510121158.9A CN201510121158A CN104759050A CN 104759050 A CN104759050 A CN 104759050A CN 201510121158 A CN201510121158 A CN 201510121158A CN 104759050 A CN104759050 A CN 104759050A
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- China
- Prior art keywords
- foam
- pipeline
- mixing
- liquid
- container
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
Abstract
The invention discloses a bulk-flow built-in non-premixed compressed air foam extinguishing apparatus. The apparatus comprises a foam mixed liquid container, a foam liquid storage tank and a gas-liquid mixing device; the upper portion of the foam mixed liquid container is provided with a container liquid discharge pipeline and a container gas feeding hole; the gas-liquid mixing device is positioned in the foam mixed liquid container; the gas-liquid mixing device comprises a mixing pipeline and a uniform mixing part, the upper end of the mixing pipeline is connected with the container liquid discharge pipeline, and the lower end of the mixing pipeline extends to the bottom of the foam mixed liquid container; the wall of the mixing pipeline is provided with a plurality of mixing device gas feeding holes; the uniform mixing part is arranged in the mixing pipeline; and the foam liquid storage tank is connected with the foam mixed liquid container through a main conveyer pipeline. When the foam extinguishing apparatus works, a high pressure gas with a certain pressure is injected into the foam mixed liquid container containing a foam mixed liquid through the container gas feeding hole, and enters the gas-liquid mixing device from the mixing device gas feeding holes in order to realize bulk flow gas supply and guarantee gas-liquid phase pressure balance.
Description
Technical field
The present invention relates to the built-in non-premixed type compressed air foam fire-extinguishing apparatus of a kind of large discharge, be particularly useful for the large-sized fires such as storage tank gross area fire, fire wall Chi Huo of putting out a fire to save life and property, also can be applicable to the places such as such as warehouse, tunnel and airport.
Background technology
At present, domestic and international compressed air foam fire-extinguishing apparatus all adopts external, namely Liqiud-gas mixing device is positioned at the outside of foams mix liquid container, gas source and foam solution separated, gas is by the supply separately such as compressor, gas cylinder, foam solution is by transport pump, and gas and foam solution reach mixing in Liqiud-gas mixing device.This kind of structural design is limited to the container capacity such as compressor, gas cylinder, gas supply is little, cause gas and foam solution melting concn lower, thus limit the supply intensity of compressed-air foam, finally cause compressed air foam fire-extinguishing apparatus not spray by large discharge; In addition, this kind of structural design is also difficult to control identical liquid phase discharge pressure, thus cannot ensure that liquid phase mixed proportion is constant.
For these reasons, this type of extinguishing device is only applied on fire fighting truck and small-sized fire-fighting equipment at present, and cannot be applied on the putting out a fire to save life and property of fire disaster.In addition, the foam mixing liquid resting period of premixed type is short, changes workload large.
Summary of the invention
For the above-mentioned technical problem existed in prior art, the present invention proposes the built-in non-premixed type compressed air foam fire-extinguishing apparatus of a kind of large discharge, it adopts following technical scheme:
The built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge, comprises foams mix liquid container, foam liquid tank and Liqiud-gas mixing device;
Container fluid pipeline and container air admission hole is provided with at foam mixing liquid upper vessel portion; Liqiud-gas mixing device is positioned at foams mix liquid container; This Liqiud-gas mixing device, comprise mixed pipe line and mixing parts, wherein, mixed pipe line upper end is connected with container fluid pipeline, and mixed pipe line lower end extends to foam mixing liquid container bottom; The tube wall of mixed pipe line offers several mixing arrangement air admission holes; Mixing parts are arranged in mixed pipe line; Foam liquid tank is connected with foams mix liquid container by main line.
Further, the operating pressure of foams mix liquid container is not less than 0.6MPa.
Further, mixed pipe line is connected to form by epimere mixed pipe line and hypomere imbibition pipeline; Mixing arrangement air admission hole is opened on the tube wall of epimere mixed pipe line; Mixing parts are arranged in epimere mixed pipe line.
Further, each mixing arrangement air admission hole is arranged on some borders of epimere mixed pipe line tube wall uniformly.
Further, be connected with one section at hypomere imbibition pipeline liquid outlet place and extend pipeline, extension road extends upwardly in epimere mixed pipe line; The caliber extending pipeline reduces to extension pipeline liquid outlet place gradually by extending pipeline inlet.
Further, each mixing arrangement air admission hole is all positioned at the below extending pipeline liquid outlet, and the airintake direction of each mixing arrangement air admission hole obliquely and be 60 ° ~ 70 ° with the fluid angular separation extending pipeline liquid outlet.
Further, mixing parts is flow spoiler or agitator.
Further, one end of main line to extend in foams mix liquid container and horizontally disposed at foam mixing liquid container bottom, main line is connected with multiple injector head or sprays arm.
Further, main line is provided with check valve, the flow direction through check valve is point to foams mix liquid container by foam liquid tank.
Further, foam liquid tank is configured with high-pressure air source, and this high-pressure air source is connected with foam liquid tank by gas transfer pipeline.
Tool of the present invention has the following advantages:
Liqiud-gas mixing device in the present invention is positioned at foams mix liquid container, when fixed froth installation works, in the foams mix liquid container containing foam mixing liquid, the gases at high pressure of certain pressure value are injected through container air admission hole, gases at high pressure enter Liqiud-gas mixing device by mixing arrangement air admission hole on the one hand, achieve large discharge air feed, foam mixing liquid on the other hand in foams mix liquid container enters Liqiud-gas mixing device and mixes with described gas, the two melting concn is higher, improve the supply intensity of compressed-air foam, the large discharge finally achieving compressed air foam fire-extinguishing apparatus sprays.In addition, because gas and foam mixing liquid are all stored in foams mix liquid container, be beneficial to and ensure liquid phase pressure balance, guarantee that gas-liquid mixed ratio is consistent.In addition, due to foam solution in the present invention and water separated, efficiently solve premixed liquid storage time short problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge in the present invention;
Wherein, 1-foams mix liquid container, 2-foam liquid tank, 3-Liqiud-gas mixing device, 4-container fluid pipeline, 5-container air admission hole, 6-control valve, 7-main line, 8-sprays arm, 9-check valve, 10-high-pressure air source, 11-gas transfer pipeline, 12-epimere mixed pipe line, 13-hypomere imbibition pipeline, 14-mixing arrangement air admission hole, 15-extends pipeline, and 16-mixes parts.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
Shown in composition graphs 1, the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge, comprises foams mix liquid container 1, foam liquid tank 2 and Liqiud-gas mixing device 3.
Foams mix liquid container 1 and foam liquid tank 2 can adopt vertical structure, also can adopt horizontal type structure, certainly can also adopt other version.
In foams mix liquid container 1, be contained with dilution, such as water etc., in foam liquid tank 2, be contained with foam solution.The object that the two is separated is, is beneficial to and solves the problem that in prior art, the premixed liquid storage time is short.
Foams mix liquid container 1 at least needs the operating pressure of 0.6MPa, to meet the demand that large discharge sprays.
Concrete, be provided with container fluid pipeline 4 and container air admission hole 5 on foams mix liquid container 1 top.Wherein,
Container fluid pipeline 4 uses as jet, and container fluid pipeline 4 is provided with control valve 6.The object arranging container air admission hole 5 is, injects gases at high pressure by this container air admission hole 5 to foams mix liquid container 1 inside.
Foam liquid tank 2 is connected with foams mix liquid container 1 by a main line 7.
One end of main line 7 extends to foam liquid tank 2 inside, and it is interior and horizontally disposed bottom foams mix liquid container 1 that the other end extends to foams mix liquid container 1.
Main line 7 is connected with multiple injector head or sprays arm 8.Set-up mode as injector head or injection arm 8 has multiple, such as, can arrange injector head or spray arm 8 in main line 7, also can on injection arm 8, arrange injector head or spray arm 8.Which kind of set-up mode of concrete employing depends on the volume of foams mix liquid container 1, and volume is larger, and the set-up mode of injector head or injection arm 8 is more complicated.
Arrange multiple injector head or spray arm 8, object ensures foam solution Quick uniform mixing in foams mix liquid container.
In order to ensure the directionality that foam solution flows, main line 7 is provided with check valve 9, through the flow direction of check valve 9 for point to foams mix liquid container 1 by foam liquid tank 2.
In addition, foam liquid tank 2 is configured with high-pressure air source 10, such as, can be gas cylinder etc., and this high-pressure air source 10 is connected with foam liquid tank 2 by gas transfer pipeline 11, concrete, and this connecting portion is positioned at the top of foam liquid tank 2.
High-pressure air source 10, for the foam solution in foam liquid tank 2 is delivered in foams mix liquid container 1 with dilution Homogeneous phase mixing, and form foam mixing liquid.
Liqiud-gas mixing device 3 is positioned at foams mix liquid container 1.
This Liqiud-gas mixing device 3, comprise mixed pipe line and mixing parts 16, wherein, mixed pipe line upper end is connected with container fluid pipeline 4, and mixed pipe line lower end extends to bottom foams mix liquid container 1.
Concrete, this mixed pipe line is connected to form by epimere mixed pipe line 12 and hypomere imbibition pipeline 13; The tube wall of epimere mixed pipe line 12 offers mixing arrangement air admission hole 14; Mixing parts 16 are arranged in epimere mixed pipe line 12.
By regulating the caliber of mixed pipe line and the pore size control gas-liquid mixed ratio of mixing arrangement air admission hole 14.Mixed pipe line and mixing arrangement air admission hole 8 are increased to engineering pipeline rank, is beneficial to the transfer efficiency improving liquid phase medium, realize large discharge and spray.
Above-mentioned mixing parts 16 can be flow spoiler or agitator etc., and its effect played fully is mixed with foam mixing liquid by gas.Certainly, the mixing parts 16 in the present invention are not limited to above-mentioned two kinds of versions.
Each mixing arrangement air admission hole 14 is arranged on some borders of epimere mixed pipe line 12 tube wall uniformly, to ensure the Homogeneous phase mixing of gas and foam mixing liquid.
In addition, be connected with one section at hypomere imbibition pipeline 13 liquid outlet place and extend pipeline 15.
It should be noted that, because epimere mixed pipe line 12 is connected with hypomere imbibition pipeline 13, hypomere imbibition pipeline 13 liquid outlet place herein, is the connecting portion of epimere mixed pipe line 12 and hypomere imbibition pipeline 13.
Extending pipeline 15 extends upwardly in epimere mixed pipe line 12; The caliber extending pipeline reduces to extension pipeline 15 liquid outlet place gradually by extending pipeline 15 inlet, extends pipeline 15 liquid outlet place flow rate of liquid, improve mixed effect to increase.
Herein, extend pipeline 15 inlet, be hypomere imbibition pipeline 13 liquid outlet or epimere mixed pipe line 12 inlet, extend pipeline 15 liquid outlet and be positioned at epimere mixed pipe line 12.
Preferably, mixing arrangement air admission hole 14 is all positioned at the below extending pipeline 15 liquid outlet, and the airintake direction of each mixing arrangement air admission hole 14 obliquely and be 60 ° ~ 70 ° with the fluid angular separation extending pipeline 15 liquid outlet.The object of such design is, ensures that gas fully mixes with foam mixing liquid.
As for the specific implementation form of mixing arrangement air admission hole 14, such as, can be, when the tube wall of epimere mixed pipe line 12 is thicker, tube wall is directly offered air admission hole obliquely; When the tube wall of epimere mixed pipe line 12 is thinner, can perforate on tube wall be passed through, and set up the form of air inlet pipe obliquely at tapping.
By being optimized each mixing arrangement air admission hole 14 aperture, quantity and position, being beneficial to and improving gas-liquid mixed quality.
In the present invention, the roughly job step of fixed froth installation is:
In foams mix liquid container 1, first fill the water of 60%-70%, in foams mix liquid container 1 exit, Liqiud-gas mixing device 3 is installed, epimere mixed pipe line 12 is made to be positioned at more than liquid level, hypomere imbibition pipeline 13 stretches into below liquid level and extends to bottom foams mix liquid container 1, Liqiud-gas mixing device 3 upper end is connected with container fluid pipeline 4, and control valve 6 is closed.
Be full of foam solution in foam liquid tank 2, high-pressure air source 10 (2.0MPa) after decompression delivers the gas in foam liquid tank 2, drives foam solution to enter in foams mix liquid container 1.
In foams mix liquid container 1, gases at high pressure are injected, such as air, nitrogen etc., until gas pressure reaches 0.6MPa in foams mix liquid container 1 by container air admission hole 5.
After breaking out of fire, be first connected with container fluid pipeline 4 by pipeline, then open high-pressure air source 10 pressure-reducing valve, after non-foam liquid in foam liquid tank 2, opening controlling valve 6 again, namely foam is transported to scene of fire from container drain pipe road 4 by pipeline, implements fire extinguishing by spraying at a distance.
Certainly; more than illustrate and be only preferred embodiment of the present invention; the present invention is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the instruction of this description; made all equivalently to substitute, obvious variant, within the essential scope all dropping on this description, protection of the present invention ought to be subject to.
Claims (10)
1. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge, comprises the gentle liquid mixing arrangement of foams mix liquid container; It is characterized in that, also comprise foam liquid tank; Container fluid pipeline and container air admission hole is provided with at foam mixing liquid upper vessel portion; Liqiud-gas mixing device is positioned at foams mix liquid container; This Liqiud-gas mixing device, comprise mixed pipe line and mixing parts, wherein, mixed pipe line upper end is connected with container fluid pipeline, and mixed pipe line lower end extends to foam mixing liquid container bottom; The tube wall of mixed pipe line offers several mixing arrangement air admission holes; Mixing parts are arranged in mixed pipe line; Foam liquid tank is connected with foams mix liquid container by main line.
2. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 1, it is characterized in that, the operating pressure of foams mix liquid container is not less than 0.6MPa.
3. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 1, is characterized in that, mixed pipe line is connected to form by epimere mixed pipe line and hypomere imbibition pipeline; Mixing arrangement air admission hole is opened on the tube wall of epimere mixed pipe line; Mixing parts are arranged in epimere mixed pipe line.
4. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 3, it is characterized in that, each mixing arrangement air admission hole is arranged on some borders of epimere mixed pipe line tube wall uniformly.
5. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 3, is characterized in that, be connected with one section at hypomere imbibition pipeline liquid outlet place and extend pipeline, extension road extends upwardly in epimere mixed pipe line; The caliber extending pipeline reduces to extension pipeline liquid outlet place gradually by extending pipeline inlet.
6. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 5, it is characterized in that, each mixing arrangement air admission hole is all positioned at the below extending pipeline liquid outlet, and the airintake direction of each mixing arrangement air admission hole obliquely and be 60 ° ~ 70 ° with the fluid angular separation extending pipeline liquid outlet.
7. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 1, is characterized in that, mixing parts are flow spoiler or agitator.
8. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 1, it is characterized in that, one end of main line to extend in foams mix liquid container and horizontally disposed at foam mixing liquid container bottom, main line is connected with multiple injector head or sprays arm.
9. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 1, is characterized in that, main line is provided with check valve, and the flow direction through check valve is point to foams mix liquid container by foam liquid tank.
10. the built-in non-premixed type compressed air foam fire-extinguishing apparatus of large discharge according to claim 1, it is characterized in that, foam liquid tank is configured with high-pressure air source, and this high-pressure air source is connected with foam liquid tank by gas transfer pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121158.9A CN104759050A (en) | 2015-03-19 | 2015-03-19 | Bulk-flow built-in non-premixed compressed air foam extinguishing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121158.9A CN104759050A (en) | 2015-03-19 | 2015-03-19 | Bulk-flow built-in non-premixed compressed air foam extinguishing apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN104759050A true CN104759050A (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510121158.9A Pending CN104759050A (en) | 2015-03-19 | 2015-03-19 | Bulk-flow built-in non-premixed compressed air foam extinguishing apparatus |
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| CN (1) | CN104759050A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295148A (en) * | 2020-09-28 | 2021-02-02 | 九江中船长安消防设备有限公司 | Air foam fire extinguishing device with high stability for warships |
| CN115671619A (en) * | 2022-09-28 | 2023-02-03 | 徐工消防安全装备有限公司 | Foam generating device and fire fighting equipment |
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| CN202028087U (en) * | 2011-03-29 | 2011-11-09 | 西安新竹实业有限责任公司 | Cabinet type foam fire extinguishing device |
| CN102380179A (en) * | 2011-10-18 | 2012-03-21 | 中国石油化工股份有限公司 | Positive pressure type compressed gas bubble fire extinguisher |
| CN102500079A (en) * | 2011-10-18 | 2012-06-20 | 中国石油化工股份有限公司 | Foam generator for compressed gas |
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2015
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Patent Citations (5)
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| CN201161078Y (en) * | 2007-11-30 | 2008-12-10 | 西安核设备有限公司 | Unit type foam extinguishing device |
| CN101920085A (en) * | 2010-09-03 | 2010-12-22 | 中国石油化工股份有限公司 | Positive pressure type foam fire-extinguishing device and use method thereof |
| CN202028087U (en) * | 2011-03-29 | 2011-11-09 | 西安新竹实业有限责任公司 | Cabinet type foam fire extinguishing device |
| CN102380179A (en) * | 2011-10-18 | 2012-03-21 | 中国石油化工股份有限公司 | Positive pressure type compressed gas bubble fire extinguisher |
| CN102500079A (en) * | 2011-10-18 | 2012-06-20 | 中国石油化工股份有限公司 | Foam generator for compressed gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112295148A (en) * | 2020-09-28 | 2021-02-02 | 九江中船长安消防设备有限公司 | Air foam fire extinguishing device with high stability for warships |
| CN112295148B (en) * | 2020-09-28 | 2021-12-28 | 九江中船长安消防设备有限公司 | Air foam fire extinguishing device with high stability for warships |
| CN115671619A (en) * | 2022-09-28 | 2023-02-03 | 徐工消防安全装备有限公司 | Foam generating device and fire fighting equipment |
| CN115671619B (en) * | 2022-09-28 | 2023-08-04 | 徐工消防安全装备有限公司 | Foam generating device and fire fighting equipment |
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Application publication date: 20150708 |