CN104922830A - High-flow negative pressure type foam generator - Google Patents
High-flow negative pressure type foam generator Download PDFInfo
- Publication number
- CN104922830A CN104922830A CN201510275931.7A CN201510275931A CN104922830A CN 104922830 A CN104922830 A CN 104922830A CN 201510275931 A CN201510275931 A CN 201510275931A CN 104922830 A CN104922830 A CN 104922830A
- Authority
- CN
- China
- Prior art keywords
- jet
- foam
- jet pipe
- length
- pipe
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Nozzles (AREA)
Abstract
The invention relates to a high-flow negative pressure type foam generator. The foam generator comprises a foam liquid inlet straight pipe section, a jet pipe bundle, a jet pipe bundle spraying port, a suction net, a foam spoiler, a foam liquid outlet straight pipe section and a foam liquid spraying port connected in sequence, wherein the jet pipe bundle consists of jet pipes; the jet pipe bundle spraying port consists of outlets of the jet pipes; and the outlet of each jet pipe is a necking type spraying port, and comprises a necking part and a spraying port part. As the internal structure of the foam generator is changed, the characteristics of a foam flowing field are radically changed, the mixing effect of foam liquid and air is intensified, the high-flow spraying of the negative pressure type foam generator is realized, the foaming performance of foam is further improved, and the fire extinguishment efficiency is improved.
Description
Technical field
The present invention relates to a kind of extinguisher device, specifically, relate to a kind of large discharge suction type foam maker being applied to froth fire extinguishing system.
Background technology
Existing suction type foam maker is mainly applied to fixed or semi-fixed type froth fire extinguishing system, these foam maker maximum stream flows are only 24L/s, after flow increases, the coefficient of foaming of foam will reduce, frostproof froth n is uneven, limit by flow, these generators can only be used for putting out a fire to save life and property the fire of general scale, and do not meet the demand of large-sized fire of putting out a fire to save life and property.
Current, when putting out a fire to save life and property large-sized fire to the requirement of the supply intensity of foam solution much larger than fixed foam extinguisher system, and adopt foam monitor spray foam, foam jet flow is the several times of foam maker more.But the foam lost amount of foam monitor is comparatively large, is almost 2 times of fixed foaming system, this proposes very large challenge to the water supply in the scene of a fire, and the advantage of fixed foaming system is that fire extinguishing is fast, foam lost amount is few, therefore, the foam maker of exploitation large discharge is the key addressed this problem.
Summary of the invention
The present invention, by changing the internal structure of foam maker, fundamentally changes the characteristic in foam flow field, the mixed effect of strengthening foam liquid and air, and the large discharge realizing suction type foam maker sprays, and improves the foam performance of foam, improves fire-fighting efficiency.
Technical scheme provided by the present invention is:
A kind of large discharge suction type foam maker, comprise the foam solution entrance straight length connected successively, jet is restrained, jet tube bank jet, air-breathing net, foam flow spoiler, foam solution outlet straight length and foam solution jet, wherein jet tube bank is made up of jet pipe, and jet tube bank jet is made up of the outlet of jet pipe, and the outlet of jet pipe is shrinking neck type jet, described in comprise necking section and jet part.
Preferably, the internal diameter of described jet pipe is 12-15mm, and length is 1.5-2.5 times of its internal diameter; The length of the necking section of jet pipe outlet is 1.0-1.2 times of jet pipe internal diameter, and the length of jet part is 0.3-0.5 times of jet pipe internal diameter, and the internal diameter of each jet is 8-10mm.
Preferably, the gap closing between described jet pipe and jet pipe.
Preferably, the distance of described jet tube bank jet and flow spoiler is 0.8-1.0 times of foam solution entrance straight length bore.
Preferably, the bore >=150mm of described foam solution entrance straight length, length is 6-8 times of bore.
Preferably, the length of straight pipe in described flow spoiler exit is more than or equal to 5 times of jet pipe bore.
Further, as follows to the detailed description of the invention:
The present invention adopts bigbore foam solution conveyance conduit, and the end of pipeline connects large discharge foam maker.This foam maker is restrained the critical components such as jet, air-breathing net, foam flow spoiler and jet by many jet pipes and jet and is formed.The arrival end of foam maker and the port of export establish the straight length of certain length.
The inlet inside diameter of large discharge foam maker is at least not less than 150mm, and foam maker level is installed and arranged.Foam maker arrival end has at least a segment length to be not less than heavy caliber caliber 6-8 horizontal straight tube section doubly, to ensure that foam mixing liquid fluid enters foam maker with stable fluidised form.
Be divided into several tubule bundles in the entrance pipeline section of foam maker, each tubule bundle outlet is the jet tube bank jet of shrinking neck type.The diameter of each jet pipe jet is 8-10mm, to ensure the abundant atomization of foam mixing liquid fluid, thus fully can mix with the air sucked.
Foam hose stream pipe is evenly arranged in large diameter pipeline, and the gap between adjacent thin jet pipe need be closed, and prevents foam mixing liquid to run off from tube bank.
The length of often propping up jet pipe is 1.5-2.5 times of its bore, the length of its necking section is 1.0-1.2 times of jet pipe bore, the length of jet part be the 0.3-0.5 of jet pipe bore doubly, jet end-to-end distance from the distance of flow spoiler be the 0.8-1.0 of foam solution entrance straight length bore doubly.Flow spoiler exit at least ensures the straight length of 5 times of heavy caliber calibers, to ensure that the second time of gas-liquid fully mixes.The jet of foam maker can be connected after this straight length.
After foam mixing liquid enters foam maker from heavy caliber foam pipe, foam mixing liquid fluid is cut into the tiny jet of multi beam by the multiple jet pipes in foam maker, because the necking down of injector head is arranged, tiny jet velocity is accelerated, form negative pressuren zone in injector head region, extraneous air is sucked fluerics in a large number, fully mixes with tiny jet, mixed foam mixing liquid strikes on flow spoiler, fully mixes.
Flow spoiler can adopt multiple flow-disturbing mode, as adopted cross-shaped, fan-shaped, netted etc.The circulation area of flow spoiler is not less than total cross section of jet orifice, and the former is that the 2-4 of the latter is doubly for good.
After flowing through flow spoiler, the foam solution after foaming continues flow forward, is sprayed onto fire area by jet.
Foam solution generator of the present invention can be applicable to all equipment or regions utilizing suction type foaming system such as External floating roof tank, internal floating roof tank, Dome roof tank and fire wall in petroleum chemical industry.
Beneficial effect of the present invention:
1. the present invention adds caliber on the basis of existing suction type foam maker, and the large discharge achieving suction type foam maker sprays.
2. the present invention is by changing the structure in generator, optimizes flow field, improves the mixed effect of foam solution and air, improves coefficient of foaming, reduces attack time.
Accompanying drawing explanation
Fig. 1 is the structure diagram of large discharge suction type foam maker;
Fig. 2 is for foam maker shown in Fig. 1 is along the profile of A-A ' line;
Fig. 3 is the schematic diagram of single jet pipe.
Label declaration:
The straight length of 1----foam mixing liquid entrance; The adpting flange of 2----foam maker and foam solution pipeline;
3----jet is restrained; 4----jet tube bank jet;
3A----jet pipe; 4A----jet pipe jet;
5----air-breathing net; 6----flow spoiler;
The straight length of the 7----foam maker port of export; 8----foam maker jet;
9----jet pipe necking section; 10----jet pipe jet part.
Detailed description of the invention
Embodiment 1:
According to technical scheme of the present invention, prepare the suction type of large discharge shown in Fig. 1 foam maker.The technical parameter of described foam maker is as follows: internal diameter 150mm, length 375mm, forms the jet pipe totally 60 of jet tube bank, the internal diameter often propping up jet pipe is 15mm, external diameter is 19mm, and the internal diameter often propping up jet pipe jet is 10mm, length 300mm, in distance, jet pipe jet 100mm place arranges taper flow spoiler, cone diameter 100mm, cone length 150mm, cone angle 60 °, horizontal straight tube section 900mm is established in this foam maker porch, and exit arranges straight length 750mm.
Above-mentioned foam maker is arranged in fixed or semi-fixed type fire-fighting system, entrance termination foamed pipe line, foam pipeline is the foam pipeline being connected to area of fire protection from fire pump room or fire wall, receive the foam mixing liquid transported from foam pipeline, the outlet section of foam maker connects bubble jet mouth, for fire area spray foam liquid.Foam maker and foam pipeline pass through Flange joint.
In oil sump fire-extinguishing test, the foams mix flow quantity of this foam maker is 48L/s, jet and pasta angle 60 °, its entrance caliber 150mm, liquid supply pressure 1.0MPa, oil sump area 4.52 ㎡ (diameter 2400mm), adopts 93# motor petrol to burn, adopts the low multiple aqueous film-forming foam extinguishing agent of 3% type (production of Jiangsu Suo Long extinguishing chemical company) to put out a fire.
Gasoline pre-burning 1min, starts extinguishing device and implements fire extinguishing test, attack time 32s, coefficient of foaming 6.6.Utilize traditional suction type foam maker, under same flow and pressure, carry out fire extinguishing test, experimental test condition is identical, and its attack time is 52s, coefficient of foaming 5.2.
Claims (6)
1. a large discharge suction type foam maker, comprises the foam solution entrance straight length connected successively, and jet is restrained, jet tube bank jet, air-breathing net, foam flow spoiler, and foam solution outlet straight length and foam solution jet, is characterized in that:
Jet tube bank is made up of jet pipe, and jet tube bank jet is made up of the outlet of jet pipe, and the outlet of jet pipe is shrinking neck type jet, comprises necking section and jet part.
2. a kind of large discharge suction type foam maker according to claim 1, is characterized in that, the internal diameter of described jet pipe is 12-15mm, and length is 1.5-2.5 times of its internal diameter; The length of the necking section of jet pipe outlet is 1.0-1.2 times of jet pipe internal diameter, and the length of jet part is 0.3-0.5 times of jet pipe internal diameter, and the internal diameter of each jet is 8-10mm.
3. a kind of large discharge suction type foam maker according to claim 1, is characterized in that, the gap closing between described jet pipe and jet pipe.
4. a kind of large discharge suction type foam maker according to claim 1, is characterized in that, the distance of described jet tube bank jet and flow spoiler is 0.8-1.0 times of foam solution entrance straight length bore.
5. a kind of large discharge suction type foam maker according to claim 1, is characterized in that, the bore >=150mm of described foam solution entrance straight length, and length is 6-8 times of bore.
6. a kind of large discharge suction type foam maker according to claim 1, is characterized in that, the length of straight pipe in described flow spoiler exit is more than or equal to 5 times of jet pipe bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275931.7A CN104922830B (en) | 2015-05-27 | 2015-05-27 | A kind of big flow suction type foam maker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275931.7A CN104922830B (en) | 2015-05-27 | 2015-05-27 | A kind of big flow suction type foam maker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104922830A true CN104922830A (en) | 2015-09-23 |
| CN104922830B CN104922830B (en) | 2018-02-06 |
Family
ID=54110460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510275931.7A Active CN104922830B (en) | 2015-05-27 | 2015-05-27 | A kind of big flow suction type foam maker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104922830B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536191A (en) * | 2015-12-29 | 2016-05-04 | 中国石油化工股份有限公司 | Positive and negative pressure coupling foam jetting device |
| CN107234773A (en) * | 2017-06-23 | 2017-10-10 | 太仓大唐化纤厂 | A kind of foamable equipment for being used to make vertical core foamed fibre cloth |
| CN107349545A (en) * | 2016-10-25 | 2017-11-17 | 中国石油化工股份有限公司 | Machinery is pumped into formula compressed air foam extinguishing device |
| CN109289137A (en) * | 2018-09-19 | 2019-02-01 | 公安部天津消防研究所 | A kind of Explosion of Transformer fire extinguishing method and system |
| CN109529645A (en) * | 2019-01-25 | 2019-03-29 | 上海化工研究院有限公司 | A kind of site remediation foam-making apparatus and its application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073311U (en) * | 1989-12-30 | 1991-03-20 | 王虎儒 | Waterpower air foam extinguisher |
| CN101190364A (en) * | 2006-11-30 | 2008-06-04 | 能美防灾株式会社 | High expansion foam fire-extinguishing system |
| CN202892721U (en) * | 2012-11-08 | 2013-04-24 | 公安部天津消防研究所 | Compressed air foam spraying fire-extinguishing device |
| CN203620127U (en) * | 2013-10-22 | 2014-06-04 | 中国矿业大学 | Solidified foam fluid generation device for fire prevention and extinguishment of coal mines |
| US20140352985A1 (en) * | 2013-05-28 | 2014-12-04 | John E. McLoughlin | Self-Regulating Foam Dispensing System |
-
2015
- 2015-05-27 CN CN201510275931.7A patent/CN104922830B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073311U (en) * | 1989-12-30 | 1991-03-20 | 王虎儒 | Waterpower air foam extinguisher |
| CN101190364A (en) * | 2006-11-30 | 2008-06-04 | 能美防灾株式会社 | High expansion foam fire-extinguishing system |
| CN202892721U (en) * | 2012-11-08 | 2013-04-24 | 公安部天津消防研究所 | Compressed air foam spraying fire-extinguishing device |
| US20140352985A1 (en) * | 2013-05-28 | 2014-12-04 | John E. McLoughlin | Self-Regulating Foam Dispensing System |
| CN203620127U (en) * | 2013-10-22 | 2014-06-04 | 中国矿业大学 | Solidified foam fluid generation device for fire prevention and extinguishment of coal mines |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536191A (en) * | 2015-12-29 | 2016-05-04 | 中国石油化工股份有限公司 | Positive and negative pressure coupling foam jetting device |
| CN105536191B (en) * | 2015-12-29 | 2018-12-04 | 中国石油化工股份有限公司 | Positive/negative-pressure couples apparatus for spray of foam |
| CN107349545A (en) * | 2016-10-25 | 2017-11-17 | 中国石油化工股份有限公司 | Machinery is pumped into formula compressed air foam extinguishing device |
| CN107234773A (en) * | 2017-06-23 | 2017-10-10 | 太仓大唐化纤厂 | A kind of foamable equipment for being used to make vertical core foamed fibre cloth |
| CN109289137A (en) * | 2018-09-19 | 2019-02-01 | 公安部天津消防研究所 | A kind of Explosion of Transformer fire extinguishing method and system |
| CN109289137B (en) * | 2018-09-19 | 2023-10-27 | 公安部天津消防研究所 | Transformer explosion fire extinguishing method and system |
| CN109529645A (en) * | 2019-01-25 | 2019-03-29 | 上海化工研究院有限公司 | A kind of site remediation foam-making apparatus and its application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104922830B (en) | 2018-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104922830A (en) | High-flow negative pressure type foam generator | |
| CN201279361Y (en) | Three-phase jet injection fire-extinguishing device | |
| CN103007472B (en) | Compressed air foam extinguishing agent ejecting gun and method thereof | |
| AU2015101100A4 (en) | One kind of long-distance high-lift mobile wildfire fighting platform for transmission lines | |
| CN104971454B (en) | The special compressed-air foam automatic fire extinguishing system in tunnel | |
| CN203154684U (en) | Compressed gas foam extinguishing system for fire fighting truck | |
| CN105169598A (en) | Air foam fire gun | |
| WO2024045249A1 (en) | Fire-fighting foam foaming apparatus, system and method | |
| CN115364407B (en) | Telescopic fire-fighting foam foamer, system and foaming method | |
| US8919745B1 (en) | High flow rate foam generating apparatus | |
| CN206026937U (en) | From inhaling formula air bubble gun | |
| CN103028333B (en) | Foaming device for compressed air A-type foams | |
| CN103100173A (en) | Fixed pipe network extinguishing system | |
| CN105126277A (en) | Large-flow compressed air and foam mixing device | |
| CN204891018U (en) | Wind -force foam extinguishing system | |
| CN102132081A (en) | Flow splitting device for annular two-phase pipe flow | |
| RU176037U1 (en) | DEVICE FOR SPRAYING A LIQUID IN A GAS MEDIUM WITH FORMATION OF A TWO-PHASE JET WITH A HIGH SPEED AND DISPERSION OF A LIQUID | |
| CN212262908U (en) | Built-in blowing device of flue | |
| CN104548433A (en) | High-pressure dried carbon dioxide powder fire extinguisher | |
| CN205460597U (en) | Fire engine is with flowing buret way | |
| CN107982828B (en) | Foam mixing device of foam liquid supply vehicle and control method thereof | |
| CN207871317U (en) | The foams mix device of foam liquid supply vehicle | |
| CN206535030U (en) | A kind of gas-liquid double-phase mixer | |
| CN211301870U (en) | Porous reverse-flow fire hose | |
| CN105107113A (en) | Throttling pressurized transportation device of fire fighting truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Applicant after: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. Applicant after: Sinopec Corp. Address before: 100728 Chaoyangmen street, Beijing, No. 22, No. Applicant before: Sinopec Corp. Applicant before: Qingdao Safety Engineering Research Institute of Sinopec Co., Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Lang Xuqing Inventor after: Dong Guosheng Inventor before: Lang Xuqing |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |