CN103028333B - Foaming device for compressed air A-type foams - Google Patents

Foaming device for compressed air A-type foams Download PDF

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Publication number
CN103028333B
CN103028333B CN201210513202.7A CN201210513202A CN103028333B CN 103028333 B CN103028333 B CN 103028333B CN 201210513202 A CN201210513202 A CN 201210513202A CN 103028333 B CN103028333 B CN 103028333B
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gas
feed tube
outlet
air
liquid
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CN103028333A (en
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姜占富
石祥
张建
葛前昆
赵庭钰
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BEIJING FIREFEND EQUIPMENT Co Ltd
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BEIJING FIREFEND EQUIPMENT Co Ltd
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Abstract

The invention discloses a high-efficient foaming device for compressed air A-type foams. The high-efficient foaming device for the compressed air A-type foams can be used for adequately foaming mixed liquid within a short time and comprises a liquid inlet pipe, an liquid outlet pipe and an air pipe joint, wherein the air pipe joint is vertically arranged on the liquid inlet pipe, an air nozzle is arranged in the liquid inlet pipe below the air pipe joint, and the direction of an air outlet of an air outlet end of the air nozzle is accordant with the flow direction of liquid in the liquid inlet pipe; and a liquid inlet connecting flange is arranged at one end of the liquid inlet pipe and is used for connecting the foaming device on a mixed liquid input device, an outlet connecting seat is arranged at the other end of the liquid inlet pipe and is arranged between the liquid outlet pipe and the liquid inlet pipe, and a liquid outlet connecting flange is arranged at the other end of the liquid outlet pipe. According to the high-efficient foaming device for the compressed air A-type foams, the adequate relative movement between air and the liquid is guided, compressed air and mixed liquid can be adequately mixed and completely foamed in the liquid outlet pipe in front of an outlet of a fire truck, the occurrence of the water blockage phenomenon is slowed down, dry foams can be conveyed to a height being more than 400m, and the purpose of conveying towards a high level is realized.

Description

Compressed class A air foam foam device
Technical field
The present invention relates to a kind of foam device, especially a kind of compressed class A air foam foam device.
Background technology
At present, it is a hard nut to crack that fire-fighting domain is realized high-rise fire extinguishing, and a lot of high-rise fires are because ignition point is high, and fire brigade feels simply helpless, and can only let alone burning, suffers heavy losses.Causing one of major reason of such result is that the water pump that rated pressure that common fire fighting truck is equipped with is 1.0MPa can only be delivered to water to 100 meters of eminences in theory, if consider water band linear loss and ensure that discharge pressure will be more than 0.3MPa, so actual have the delivery head of fight capability at most 60 meters of left and right.Also have a kind of fire fighting truck that is equipped with mesolow pump, water-aspirator pressure also only has 2.0MPa, and effectively delivery head is at most 150 meters of left and right.With routine equipment, the high building that exceedes 200 meters cannot directly be carried up enough water from ground.
There are at present two kinds of emergency methods:
Be a floor of several hands being lifted to power pump and are placed in certain altitude, do relay and carry with fire engine water-pump is end to end.On this law theory, effectively, but in the situation that scene of a fire power-off does not have elevator, transport the pump of the tens kilograms building of climbing by manpower very time-consuming, usually bungle the chance of winning a battle;
Another kind method is to adopt compressed class A air foam, and the characteristic normal pressure pump that utilizes its proportion to be greatly lighter than water (conventionally only accounting for 1/7th 0 parts even of water proportion) is carried to high level.
Class A foam liquid is the novel foam extinguishing agent of a unique preparation; there is unrivaled fire extinguishing adaptability; it has improved the permeance property to water; the capillary energy that has reduced water makes water be penetrated into the deep inside of general combustible and is unlikely to be trickled on the surface of material, and the protective layer that the surface that the foaming component of class A foam liquid can increase the viscosity of water and be attached on for a long time combustible forms one deck radiation proof heat catches fire preventing.Class A foam liquid can low matched proportion density and clear water, saline-alkali water or sea water mixing use, this foam solution is applicable to category-A fire extinguishing place, such as: building, yarn fabric, shrubbery and grassland, rubbish bury regions such as filling out field, tire, granary, paper, vehicle are in-built, subway, tunnel.Class A foam liquid meets GB17427-1998 " aqueous film-forming foam extinguishing agent " standard and GB17835-1999 " water pump extinguishing chemical general technical specifications " standard.
But the abundant foaming of existing import class A foam car completes gradually leaving in 20~40 meters of water bands of fire-fighting truck water outlet.Because water band when this length has started to enter the hoisting depth stage, as insufficient in frostproof froth n and part foam bleed (lather collapse) in course of conveying, in water band, can form water resistance (one section of entity water column), cause hoisting depth to be equal to the consequence of carrying water completely.For eliminating these water columns, have no alternative but set up in the lowest segment of transfer pipeline the bypass that discharges water.Owing to being difficult to grasp the opportunity discharging water, repeatedly discharge water and greatly affect high-rise conveying, practical operation difficulty is very large.
Summary of the invention
Form water column and the large problem of operation easier for solving in foam in existing class A foam device water band distance, insufficient water band that foams, the invention provides a kind of compressed class A air foam foam device that distance is short, foam abundant and easy and simple to handle that foams.
Technical problem to be solved by this invention is achieved through the following technical solutions:
A kind of compressed class A air foam foam device, for mixed liquor fully foaming at short notice, comprise feed tube, drain pipe and gas-tpe fitting, on described feed tube, be vertically installed with gas-tpe fitting, in the feed tube of described gas-tpe fitting below, be provided with gas jets, gas outlet, described gas jets outlet side direction is consistent with liquid flow direction in feed tube.
Described feed tube one end is provided with feed liquor adpting flange, feed liquor adpting flange is used for connecting foam device at mixed liquor input unit, the described feed tube other end is provided with outlet Connection Block, described outlet Connection Block is located between drain pipe and feed tube, and the described drain pipe other end is provided with fluid adpting flange.
Described gas jets inlet end is vertical with outlet side, and gas jets inlet end is connected with gas-tpe fitting, and gas-tpe fitting imports compressed air into from outside, and gas jets sprays into Compressed Gas for mixing material in feed tube.
Described gas jets outlet side port is tapered opening, and tapered opening makes the following current can be fully and mixing material mixed foaming to the Compressed Gas of injecting.
Described outlet Connection Block is located in drain pipe port, and outlet Connection Block is used for connecting drain pipe and feed tube.
It is tapered opening that described outlet Connection Block connects feed tube one end port, and this end toper opening is relative with the port tapered opening of gas jets outlet side, and described outlet Connection Block is connected side ports with feed tube be that diameter is greater than drain pipe side ports diameter.
Described fluid adpting flange is connected with fire fighting truck foam outlet.
The described gas-tpe fitting other end is provided with air compressor.
The invention has the beneficial effects as follows:
Gas jets inlet end of the present invention is mutually vertical with outlet side, and gas outlet is injected along water (flow) direction is fan-shaped, allows mixed liquor foam completely.By the abundant relative motion of guiding gas-liquid, thereby guarantee can fully mix foaming completely in compressed air and the mixing material drain pipe before fire-fighting truck water outlet, slow down the generation of " water resistance " phenomenon, make to enter in water band is all the foam that out and out proportion is very light, dry foam can be delivered to 400 meters of above height of height, reach the object of carrying to high level.The mixed liquor around having flow through from Compressed Gas when the present invention has avoided vertical gas nozzle inlet end to inject simultaneously enters into water band and forms water column, and then reduces foam delivery height.
Brief description of the drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention;
In figure, 1. feed liquor adpting flange, 2. feed tube, 3. gas-tpe fitting, 4. gas jets, 5. outlet Connection Block, 6. drain pipe, 7. fluid adpting flange.
Detailed description of the invention
As shown in Figure 1, this compressed class A air foam foam device, is made up of feed liquor adpting flange 1, feed tube 2, gas-tpe fitting 3, gas jets 4, outlet Connection Block 5, drain pipe 6 and fluid adpting flange 7.
Feed tube 2 one end welding feed liquor adpting flanges 1, feed liquor adpting flange 1 is equipped with bolt, the fixing foam device of bolt is on mixed liquor input unit, feed tube 2 other end welding outlet Connection Blocks 5, outlet Connection Block 5 is welded to connect drain pipe 6 and feed tube 2, on drain pipe 6 other ends, weld fluid adpting flange 7, fluid adpting flange 7 is bolted on fire fighting truck foam outlet.
Vertical welding gas-tpe fitting 3 on feed tube 2, gas-tpe fitting 3 other ends are connected with air compressor, in gas-tpe fitting 3 below feed tubes 2, be welded to connect with gas jets 4 inlet ends, gas jets 4 gas outlets, outlet side are fixed on feed tube 2 centers, and gas outlet direction is consistent with the interior liquid flow direction of feed tube 2.
It is vertical with outlet side that gas jets 4 is placed in the interior inlet end of feed tube 2, and gas jets 4 is " L " type, and gas-tpe fitting 3 imports compressed air into from outside, and gas jets 4 is for spraying into compressed air to the interior mixing material of feed tube 2.Gas jets 4 outlet side ports are tapered opening, tapered opening make following current to the Compressed Gas of injecting can be rapidly, fully and mixing material mixed foaming.
Outlet Connection Block 5 is welded on drain pipe 6 and feed tube 2 links, drain pipe 6 port inner sides.It is tapered opening that outlet Connection Block 5 connects feed tube 2 one end ports, this end toper opening is relative with gas jets 4 outlet side port tapered openings, outlet Connection Block 5 is connected side ports with feed tube 2 be that diameter is greater than drain pipe 6 side ports diameters, outlet Connection Block 5 is for connecting drain pipe 6 and feed tube 2, and its tapered opening relative with gas jets 4 outlet side ports simultaneously has more promoted the abundant foaming of compressed air and mixing material.
Implementation process of the present invention:
The mixed liquor of foam and water enters in feed tube 2 by feed liquor adpting flange 1, enter in gas jets 4 by gas-tpe fitting 3 with the compressed air of certain pressure simultaneously, because outlet Connection Block 5 is two tapered openings that bottom is relative with port openings and gas jets 4 gas outlet port openings that feed tube 2 connects a side, now the mixed liquor of the foam in feed tube 2 and water will fully mix with the compressed air of ejection from gas jets 4 and foam and enter in drain pipe 6, be connected with fire fighting truck foam outlet by fluid adpting flange 7.
The mixed liquor that this equipment can make foam and water is foaming completely in drain pipe, is all dry foam, and dry foam can be delivered to 400 meters of above height of height thereby enter in water band.Avoid the fashionable mixed liquor flowing through from gas of vertical sand shooting to enter into water band around, form water resistance, reduce delivery head.
Should be understood that, above-mentioned detailed description of the invention of the present invention is only for exemplary illustration or explain principle of the present invention, and is not construed as limiting the invention.Therefore any amendment of, making, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in without departing from the spirit and scope of the present invention in the situation that.In addition, claims of the present invention are intended to contain whole variations and the modification in the equivalents that falls into claims scope and border or this scope and border.

Claims (4)

1. a compressed class A air foam foam device, for mixed liquor fully foaming at short notice, comprise feed tube, drain pipe and gas-tpe fitting, on described feed tube, be vertically installed with gas-tpe fitting, in the feed tube of described gas-tpe fitting below, be provided with gas jets, gas outlet, described gas jets outlet side direction is consistent with liquid flow direction in feed tube, it is characterized in that: described feed tube one end is provided with feed liquor adpting flange, feed liquor adpting flange is used for connecting foam device at mixed liquor input unit, the described feed tube other end is provided with outlet Connection Block, described outlet Connection Block is located between drain pipe and feed tube, the described drain pipe other end is provided with fluid adpting flange,
Described gas jets outlet side port is tapered opening;
Described outlet Connection Block is located in drain pipe port, and outlet Connection Block is used for connecting drain pipe and feed tube;
It is tapered opening that described outlet Connection Block connects feed tube one end port, and this end toper opening is relative with the port tapered opening of gas jets outlet side, and described outlet Connection Block is connected side ports with feed tube be that diameter is greater than drain pipe side ports diameter.
2. compressed class A air foam foam device according to claim 1, it is characterized in that: described gas jets inlet end is vertical with outlet side, gas jets inlet end is connected with gas-tpe fitting, gas-tpe fitting imports compressed air into from outside, and gas jets sprays into Compressed Gas for mixing material in feed tube.
3. compressed class A air foam foam device according to claim 1, is characterized in that: described fluid adpting flange is connected with fire fighting truck foam outlet.
4. compressed class A air foam foam device according to claim 1, is characterized in that: the described gas-tpe fitting other end is provided with air compressor.
CN201210513202.7A 2012-12-04 2012-12-04 Foaming device for compressed air A-type foams Active CN103028333B (en)

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Application Number Priority Date Filing Date Title
CN201210513202.7A CN103028333B (en) 2012-12-04 2012-12-04 Foaming device for compressed air A-type foams

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Application Number Priority Date Filing Date Title
CN201210513202.7A CN103028333B (en) 2012-12-04 2012-12-04 Foaming device for compressed air A-type foams

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CN103028333B true CN103028333B (en) 2014-10-15

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105169606A (en) * 2015-08-21 2015-12-23 山东绿屏工业消防设备有限公司 Air foam generator
CN105668663B (en) * 2016-03-24 2018-12-21 佛山市顺德区美的饮水机制造有限公司 Water purification system and bubble formation device for water purification system
CN106730504B (en) * 2016-12-19 2022-04-15 捷达消防科技(苏州)股份有限公司 Positive pressure type automatic proportional mixer for fire fighting

Citations (8)

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Publication number Priority date Publication date Assignee Title
CN2073311U (en) * 1989-12-30 1991-03-20 王虎儒 Waterpower air foam extinguisher
CN1216477A (en) * 1996-04-16 1999-05-12 全民泡沫股份有限公司 Nozzle for use with fire-fighting foams
CN1359453A (en) * 1999-06-28 2002-07-17 中央西伯利亚主干线石油管道股份公司 Foam generator for fire extinguisher
CN201006402Y (en) * 2006-06-05 2008-01-16 北京航空航天大学 Wave flap agitator
CN201049165Y (en) * 2007-05-30 2008-04-23 广州市武晋消防设备有限公司 Negative pressure compressed air A kind foam fire-extinguishing device
WO2009086822A2 (en) * 2008-01-10 2009-07-16 Neopor System Gmbh Method and associated apparatus for pressureless or nearly pressureless incorporation of foam into a pressurized material stream
CN201492845U (en) * 2009-09-17 2010-06-02 西安新竹防灾救生设备有限公司 Medium-multiple inert gas foam generator
CN201988343U (en) * 2011-03-15 2011-09-28 天津力冠能源科技有限公司 Ammonia gas and air Venturi mixer

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JP4298824B2 (en) * 1997-10-28 2009-07-22 Idec株式会社 Gas-liquid dissolution and mixing equipment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2073311U (en) * 1989-12-30 1991-03-20 王虎儒 Waterpower air foam extinguisher
CN1216477A (en) * 1996-04-16 1999-05-12 全民泡沫股份有限公司 Nozzle for use with fire-fighting foams
CN1359453A (en) * 1999-06-28 2002-07-17 中央西伯利亚主干线石油管道股份公司 Foam generator for fire extinguisher
CN201006402Y (en) * 2006-06-05 2008-01-16 北京航空航天大学 Wave flap agitator
CN201049165Y (en) * 2007-05-30 2008-04-23 广州市武晋消防设备有限公司 Negative pressure compressed air A kind foam fire-extinguishing device
WO2009086822A2 (en) * 2008-01-10 2009-07-16 Neopor System Gmbh Method and associated apparatus for pressureless or nearly pressureless incorporation of foam into a pressurized material stream
CN201492845U (en) * 2009-09-17 2010-06-02 西安新竹防灾救生设备有限公司 Medium-multiple inert gas foam generator
CN201988343U (en) * 2011-03-15 2011-09-28 天津力冠能源科技有限公司 Ammonia gas and air Venturi mixer

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Title
JP特开平11-197475A 1999.07.27

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