CN110448829A - Suction type three-phase froth generating device and methods and applications - Google Patents
Suction type three-phase froth generating device and methods and applications Download PDFInfo
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- CN110448829A CN110448829A CN201810426748.6A CN201810426748A CN110448829A CN 110448829 A CN110448829 A CN 110448829A CN 201810426748 A CN201810426748 A CN 201810426748A CN 110448829 A CN110448829 A CN 110448829A
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- foam
- phase froth
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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
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Abstract
The present invention relates to a kind of suction type three-phase froth generating device and methods and applications, mainly solve the problems, such as to be difficult to realize that big flow three-phase froth occurs and injection, extinguishing effect are bad in the prior art.The present invention is by using a kind of suction type three-phase froth generating device, including foam feed system, three-phase froth generating system and bubblejet systems, contain foam liquid case, foam pump in foam feed system, foam solution is continuously fed into three-phase froth generating system；It include that foam solution control section, powder supply portion and liquid blend part admittedly in three-phase froth generating system, bubblejet systems include foam pipeline line and negative inspiratory pressure formula apparatus for spray of foam；Foam feed system is connected by pipeline with three-phase froth generating system, and the outlet of three-phase froth generating system preferably solves the above problem by the technical solution that foam pipeline line is connected with negative inspiratory pressure formula apparatus for spray of foam, can be used in the fire of Petrochemical.
Description
Technical field
The present invention relates to a kind of suction type three-phase froth generating device and methods and applications, can be used in the fire such as Petrochemical
Calamity rescue, belongs to technical field of fire safety.
Background technique
Three-phase froth refers to adds solid powder in traditional gas-liquid two-phase fire foam, in solid powder and foam
Surfactant synergistic effect, improves the stability of bubble in foam.In general, the drainage time of three-phase froth, pasta thermostabilization
Anti- re-ignition performance is better than gas-liquid two-phase foam after property, fire extinguishing.Currently, about the preparation method of coal mine fire fighting three-phase froth and
Patent is more, and the patent for being occurred and being sprayed with three-phase froth about Petrochemical oils fire extinguishing is less.
Patent CN1168891C devises a three-phase froth generating device with the dynamic and static pressure conversion characteristic of Venturi tube.
Slurries with particle powder enter from the main-inlet of mixer, in the throat position side inspiration nitrogen of mixer Venturi tube,
In the downstream of venturi pipeline section, gas-liquid-solid three-phase is mixed with three-phase froth.The device is mainly used in coal mine fire fighting field, prevents
Control spontaneous combustionof coal.Different from patent CN1168891C, this patent enters foam solution in venturi pipeline section upstream, in venturi pipeline section
Throat enters powder and a small amount of air obtains, and generates three by negative inspiratory pressure formula foam maker in venturi pipeline section downstream
Phase foam.
Currently, there is a more perfect gas-liquid two-phase fixed froth installation in Petrochemical, including fire cistern, foam liquid tank,
Foam proportioner, fire water pipeline, storage tank fixed suction type foam maker and injection apparatus etc..This patent proposes new
Type suction type three-phase froth method for generation and device can set up Three phase bubble in conjunction with current Petrochemical fire fighting device
Foam occurs and spraying system, while also can be used in other fire suppression applications fields.
Summary of the invention
The first technical problem to be solved by the present invention be difficult to realize in the prior art big flow three-phase froth occur and
The bad problem of injection, extinguishing effect provides a kind of new suction type three-phase froth generating device, has and be able to achieve big flow three
The advantage that phase foam occurs and injection, good extinguishing effect, anti-re-ignition performance are good.The second technical problem to be solved by the present invention is
One kind and corresponding suction type three-phase froth method for generation one of the technical issues of solution are provided.Skill to be solved by this invention
The three of art problem be to provide it is a kind of with solve the technical issues of one of corresponding suction type three-phase froth generating device application.
One of in order to solve the above problem, The technical solution adopted by the invention is as follows: a kind of suction type three-phase froth fills
It sets, including foam feed system, three-phase froth generating system and bubblejet systems, contains foam solution in foam feed system
Foam solution is continuously fed into three-phase froth generating system by case, foam pump；It include foam solution in three-phase froth generating system
Control section, powder supply portion and liquid blend part admittedly, wherein foam solution control section include fluid flowmeter, pressure gauge,
Foam liquid-flow controlling valve；Powder supply portion includes powder material warehouse, blender and powder flow control valve, is consolidated in venturi liquid
Powder is added continuously in foam solution by the throat of mixer；Liquid blend admittedly part include venturi liquid consolidate mixer, pressure gauge,
Flow-disturbing mixation tube section；Bubblejet systems include foam pipeline line and negative inspiratory pressure formula apparatus for spray of foam；Foam supply system
System is connected by pipeline with three-phase froth generating system, and the outlet of three-phase froth generating system is inhaled by foam pipeline line and negative pressure
Gas formula apparatus for spray of foam is connected.
In above-mentioned technical proposal, it is preferable that foam pump entrance is connected with foam liquid case, outlet and fluid flowmeter entrance
It is connected.
In above-mentioned technical proposal, it is preferable that fluid flowmeter outlet is connected with foam liquid-flow controlling valve, fluid flowmeter
The pipeline being connected with foam liquid-flow controlling valve is equipped with pressure gauge.
In above-mentioned technical proposal, it is preferable that the outlet of foam liquid-flow controlling valve consolidates mixer entrance with venturi liquid and is connected.
In above-mentioned technical proposal, it is preferable that venturi liquid consolidates mixer outlet and is connected with flow-disturbing mixation tube section.
In above-mentioned technical proposal, it is preferable that flow-disturbing mixation tube section is equipped with pressure gauge.
In above-mentioned technical proposal, it is preferable that be equipped with blender, mixing speed 10-30r/min, powder in powder material warehouse
Feed bin lower part outlet pipeline is equipped with powder flow control valve, and powder flow control valve outlet and venturi liquid consolidate the larynx of mixer
Portion is connected.
In order to solve the above problem two, The technical solution adopted by the invention is as follows: a kind of suction type three-phase froth generation side
The powder granule for three-phase froth preparation is first added into powder material warehouse, is started blender, opened using the device for method
Open foam liquid-flow controlling valve and powder flow control valve；The foam pump for starting foam feed system carries out foam solution conveying,
When foam solution consolidates mixer by venturi liquid, negative pressure is generated in the throat of venturi section, from the gas-entrained absorption of powder material warehouse
Then powder obtains uniformly mixed liquid by the flow-disturbing mixation tube section in downstream and consolidates mixed liquor；It is defeated by foam that liquid consolidates mixed liquor
Pipeline is sent to send to negative inspiratory pressure formula apparatus for spray of foam, foam solution and negative pressure absorbing in negative inspiratory pressure formula apparatus for spray of foam
Air blending foaming, obtains three-phase froth, is finally ejected on ignition point.
In order to solve the above problem three, The technical solution adopted by the invention is as follows: a kind of suction type three-phase froth fills
The application set, in the fire rescue for petroleum chemical enterprise tank field.
Currently existing three-phase froth generation technique, foam solution, powder and gas phase three continuously mix inefficient and difficult
To realize the generation of big flow three-phase froth and injection, to be difficult to use in Petrochemical large-scale storage tank fire rescue.This patent mentions
The three-phase froth of confession occurs and device, simple and stable structure, and uniformly mixed three-phase froth can not only be made, and is suitable for connecting
Continuous big flow foam jet occasion, can significantly improve large-scale storage tank area fire disaster emergency rescue ability.Three-phase froth is steeped compared with two-phase
Foam has the advantages that foam stability is high, anti-re-ignition ability is strong, has greater advantage in petrochemical field fire fighting and rescue；This patent proposes
A kind of novel negative pressure type three-phase froth method for generation and device, solve foam solution, powder and the organic mixed foaming of gas phase three
The problem of, by scientific and reasonable mixing method and technique, realizes efficiently foaming, achieve preferable technical effect.
Detailed description of the invention
Fig. 1 is the flow diagram of device of the present invention.
In Fig. 1,1 foam feed system, 2 foam liquid cases, 3 foam pumps, 4 external valves, 5 three-phase froth generating systems, 6
Fluid flowmeter, 7 pressure gauges, 8 foam liquid-flow controlling valves, 9 powder material warehouses, 10 blenders, 11 powder flow control valves, 12 texts
Liquid consolidates mixer, 13 pressure gauges, 14 flow-disturbing mixation tube sections, 15 foam pipeline lines, 16 negative inspiratory pressure formula foam jets dress in mound
It sets.
The present invention will be further described below by way of examples, but is not limited only to the present embodiment.
Specific embodiment
[embodiment 1]
A kind of suction type three-phase froth generating device and method, as shown in Figure 1, suction type three-phase froth method for generation and dress
Set mainly includes foam feed system, three-phase froth generating system and bubblejet systems etc..Mainly contain in foam feed system
There are foam liquid case, foam pump etc., foam solution is continuously fed into three-phase froth generating system.In three-phase froth generating system
It mainly blends part admittedly by foam solution control section, powder supply portion and liquid to form, wherein foam solution control section is by liquid
Flowmeter, pressure gauge, foam liquid-flow controlling valve composition；Powder supply portion is by powder material warehouse, blender and powder flow control
Powder at being added continuously in foam solution by valve group processed in the throat that venturi liquid consolidates mixer；Liquid blend admittedly part mainly by
Venturi liquid consolidates mixer, pressure gauge, flow-disturbing mixation tube section composition.Foam jet is mainly by foam pipeline line and negative inspiratory pressure
Formula apparatus for spray of foam composition.
Described device is used for Petrochemical fixed foam extinguisher system.
Oil tank fire control facility includes fire water, foam dope, proportioner, fire water pipeline etc., is had by oneself by oil depot
Fire fighting device provides foam solution, realizes the function of foam feed system.Near tank field, three-phase froth generating system is arranged, and
It is connect with foam feed system and bubblejet systems.Negative inspiratory pressure formula apparatus for spray of foam is arranged in the top of storage tank, usually
It is evenly arranged for 8 along storage tank circumferential direction.Foam pipeline line is DN80 pipeline, quantity and negative inspiratory pressure formula apparatus for spray of foam one
It causes, corresponds.
During fire fighting and rescue, the powder granule for three-phase froth preparation, starting stirring are first added into powder material warehouse
Device, mixing speed 10-30r/min.Open foam liquid-flow controlling valve and powder flow control valve.Start foam feed system
Foam pump carry out foam solution conveying.When foam solution consolidates mixer by venturi liquid, generated in the throat of venturi section negative
Pressure carries a small amount of gas secretly from powder material warehouse and draws powder, then obtains uniformly mixed liquid by the flow-disturbing mixation tube section in downstream
Gu mixed liquor.Liquid is consolidated mixed liquor and is sent by foam pipeline line to negative inspiratory pressure formula apparatus for spray of foam, steeps in negative inspiratory pressure formula
The air of foam solution and negative pressure absorbing blending foaming, obtains three-phase froth, is finally ejected on storage tank in foam injection apparatus.
[embodiment 2]
According to condition described in embodiment 1, described device Petrochemical feed flow, the fire extinguishing of fire fighting truck spray foam.
The big flow fire water provided using Petrochemical and foam solution.It is furnished with fire-fighting in the fire fighting device of usual Petrochemical
Water and foam dope are mixed to get foam solution by foam proportioner, and are exported by fire water pipeline, reach three-phase bubble
Foam generating system.Three-phase froth generating system is placed in the roadside near kindling storage tank, and upstream is connect with foam feed system, under
Trip is connect by fire hose with the negative inspiratory pressure formula apparatus for spray of foam on fire fighting truck.If desired foam flow is big, then negative pressure
Air suction type apparatus for spray of foam can negative inspiratory pressure formula froth nozzle connection on more fire fighting trucks.
During fire fighting and rescue, the powder granule for three-phase froth preparation, starting stirring are first added into powder material warehouse
Device, mixing speed 10-30r/min.Open foam liquid-flow controlling valve and powder flow control valve.Start foam feed system
Foam pump carry out foam solution conveying.When foam solution consolidates mixer by venturi liquid, generated in the throat of venturi section negative
Pressure carries a small amount of gas secretly from powder material warehouse and draws powder, then obtains uniformly mixed liquid by the flow-disturbing mixation tube section in downstream
Gu mixed liquor.Liquid is consolidated mixed liquor and is sent by foam pipeline line to negative inspiratory pressure formula apparatus for spray of foam, steeps in negative inspiratory pressure formula
The air of foam solution and negative pressure absorbing blending foaming, obtains three-phase froth, is finally ejected on storage tank in foam injection apparatus.
Patent device connects froth nozzle on fire fighting truck, and the position of froth nozzle can be moved freely in fire extinguishing procedure
It sets, flexible and efficient fire extinguishing.
[embodiment 3]
According to condition described in embodiment 1, described device fire fighting truck feed flow, the fire extinguishing of fire fighting truck spray foam.
The external valve of device is connect with fire fighting truck foam solution outlet conduit, that is, prepares fire water and the bubble of three-phase froth
Foam liquid is provided by fire fighting truck, and the three-phase froth of generation is sprayed also by the negative inspiratory pressure formula apparatus for spray of foam on fire fighting truck.Fortune
When row, foam liquid-flow controlling valve is all turned on, and foam solution flow control is controlled by fire fighting truck.Slurry flow passes through slurry stream
Control valve control.If desired foam flow is big, then three-phase froth generating system upstream can be exported with more fire fighting truck foam solutions
It connects, is connect behind flow-disturbing mixation tube section downstream with the negative inspiratory pressure formula froth nozzle on more fire fighting trucks.
During fire fighting and rescue, the powder granule for three-phase froth preparation, starting stirring are first added into powder material warehouse
Device, mixing speed 10-30r/min.Open foam liquid-flow controlling valve and powder flow control valve.Start foam on fire fighting truck
The foam pump of feed system carries out foam solution conveying, and controls foam solution feed flow by fire fighting truck.Foam solution is by text
When liquid consolidates mixer in mound, negative pressure is generated in the throat of venturi section, a small amount of gas is carried secretly from powder material warehouse and draws powder, then
Uniformly mixed liquid, which is obtained, by the flow-disturbing mixation tube section in downstream consolidates mixed liquor.Liquid consolidate mixed liquor by foam pipeline line send to
Negative inspiratory pressure formula apparatus for spray of foam on fire fighting truck, the sky of foam solution and negative pressure absorbing in negative inspiratory pressure formula apparatus for spray of foam
Gas blending foaming, obtains three-phase froth, is finally ejected on fire area.
The novel negative pressure type three-phase froth method for generation and device that this patent provides can be applied to current two-phase foam and go out
Most fields of fire rescue, not only foam flow is big, and foam stability and anti-re-ignition characteristic are high, and fire-fighting efficiency is high.
[comparative example]
CN1168891C is that foam solution and powder are mixed to obtain slurries first, and then the main channel of venturi conduit enters and contains
The slurries of powder, then venturi throat conduit region sucks gas phase, so that gas-liquid mixed obtains three-phase froth.The patent does not have
Solve how quantitative powder is continuously added to the problems in foam solution very well.
And the main channel that this patent is then venturi conduit enters foam solution, then venturi throat conduit region sucks powder
Body and a small amount of gas obtain the foam slurry containing powder, and foam a little.Then slurries pass through the negative inspiratory pressure bubble jet in downstream
Injection device sprays after air-breathing mixed foaming.
Claims (9)
1. a kind of suction type three-phase froth generating device, including foam feed system, three-phase froth generating system and foam jet
System contains foam liquid case, foam pump in foam feed system, foam solution is continuously fed into three-phase froth generating system
In；Part is blended admittedly including foam solution control section, powder supply portion and liquid in three-phase froth generating system, wherein foam solution
Control section includes fluid flowmeter, pressure gauge, foam liquid-flow controlling valve；Powder supply portion includes powder material warehouse, stirring
Powder is added continuously in foam solution by device and powder flow control valve in the throat that venturi liquid consolidates mixer；Liquid blends admittedly
Part includes that venturi liquid consolidates mixer, pressure gauge, flow-disturbing mixation tube section；Bubblejet systems include foam pipeline line and bear
Press air suction type apparatus for spray of foam；Foam feed system is connected by pipeline with three-phase froth generating system, and three-phase froth occurs
System outlet is connected by foam pipeline line with negative inspiratory pressure formula apparatus for spray of foam.
2. suction type three-phase froth generating device according to claim 1, it is characterised in that foam pump entrance and foam solution
Case is connected, and outlet is connected with fluid flowmeter entrance.
3. suction type three-phase froth generating device according to claim 1, it is characterised in that fluid flowmeter outlet and foam
Liquid-flow controlling valve is connected, and the pipeline that fluid flowmeter is connected with foam liquid-flow controlling valve is equipped with pressure gauge.
4. suction type three-phase froth generating device according to claim 1, it is characterised in that the outlet of foam liquid-flow controlling valve
Consolidate mixer entrance with venturi liquid to be connected.
5. suction type three-phase froth generating device according to claim 1, it is characterised in that venturi liquid consolidates mixer outlet
It is connected with flow-disturbing mixation tube section.
6. suction type three-phase froth generating device according to claim 1, it is characterised in that flow-disturbing mixation tube section is equipped with pressure
Power table.
7. suction type three-phase froth generating device according to claim 1, it is characterised in that blender is equipped in powder material warehouse,
Mixing speed is 10-30r/min, and powder material warehouse lower part outlet pipeline is equipped with powder flow control valve, powder flow control valve
The throat for consolidating mixer with venturi liquid is exported to be connected.
8. a kind of suction type three-phase froth method for generation is first added into powder material warehouse using the device described in claim 1~7
Enter the powder granule for three-phase froth preparation, start blender, opens foam liquid-flow controlling valve and powder flow control valve；
The foam pump for starting foam feed system carries out foam solution conveying, when foam solution consolidates mixer by venturi liquid, in Wen Qiu
In section throat generate negative pressure then obtained from the gas-entrained absorption powder of powder material warehouse by the flow-disturbing mixation tube section in downstream
Uniformly mixed liquid consolidates mixed liquor；Liquid is consolidated mixed liquor and is sent by foam pipeline line to negative inspiratory pressure formula apparatus for spray of foam, In
The air of foam solution and negative pressure absorbing blending foaming, obtains three-phase froth, finally sprays in negative inspiratory pressure formula apparatus for spray of foam
Onto ignition point.
9. a kind of application of the suction type three-phase froth generating device as described in claim 1~7, the fire for petroleum chemical enterprise tank field
In calamity rescue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426748.6A CN110448829A (en) | 2018-05-07 | 2018-05-07 | Suction type three-phase froth generating device and methods and applications |
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| CN201810426748.6A CN110448829A (en) | 2018-05-07 | 2018-05-07 | Suction type three-phase froth generating device and methods and applications |
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| CN201810426748.6A Pending CN110448829A (en) | 2018-05-07 | 2018-05-07 | Suction type three-phase froth generating device and methods and applications |
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| GB280313A (en) * | 1926-09-01 | 1927-11-17 | Foamite Childs Corp | Improvements in or relating to apparatus for mixing powder with liquid |
| NL8003598A (en) * | 1980-06-21 | 1982-01-18 | Doeschot Rosenbauer B V | Additive metering method to fluid flow - uses fluid pressure from tapping to drive additive to venturi |
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Application publication date: 20191115 |