CN110448830A - The fixed three-phase froth generation in Petrochemical and injection apparatus and method - Google Patents
The fixed three-phase froth generation in Petrochemical and injection apparatus and method Download PDFInfo
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- CN110448830A CN110448830A CN201810427648.5A CN201810427648A CN110448830A CN 110448830 A CN110448830 A CN 110448830A CN 201810427648 A CN201810427648 A CN 201810427648A CN 110448830 A CN110448830 A CN 110448830A
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- 238000002347 injection Methods 0.000 title claims abstract description 28
- 239000007924 injection Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000006260 foam Substances 0.000 claims abstract description 275
- 239000000243 solution Substances 0.000 claims abstract description 74
- 239000002002 slurry Substances 0.000 claims abstract description 73
- 238000003860 storage Methods 0.000 claims abstract description 47
- 239000007921 spray Substances 0.000 claims abstract description 26
- 238000013329 compounding Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 239000000843 powder Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 17
- 238000007667 floating Methods 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 230000003434 inspiratory effect Effects 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 241001270131 Agaricus moelleri Species 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 235000013305 food Nutrition 0.000 description 64
- 238000002474 experimental method Methods 0.000 description 12
- 238000002156 mixing Methods 0.000 description 11
- 235000015927 pasta Nutrition 0.000 description 9
- 238000005187 foaming Methods 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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)
- Nozzles (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
The present invention relates to a kind of fixed three-phase froth generation in Petrochemical and injection apparatus and methods, mainly solve the problems, such as that bubble stability is poor in the prior art, extinguishing effect is bad.The present invention occurs by using a kind of fixed three-phase froth in Petrochemical and injection apparatus, including fire pump room, foam solution pipeline, slurry compounding system, foam mixer, negative pressure air-suction device, fixed apparatus for spray of foam, there is the technical solution of fire cistern, fire pump, foam dope storage tank, foam proportioner preferably to solve the above problem in fire pump room, can be used in the fire of Petrochemical.
Description
Technical field
The present invention relates to a kind of fixed three-phase froth generation in Petrochemical and injection apparatus and methods, belong to security against fire
Technical field.
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, more about the preparation method patent of three-phase froth, and
Occur about three-phase froth and the patent of injection apparatus is less, is had not yet seen for the device of Petrochemical three-phase foam extinguishing
Publication.
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.
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., can combine currently
Petrochemical fire fighting device sets up Three phase foam and preparation and spraying system occurs.
Summary of the invention
The first technical problem to be solved by the present invention is that bubble stability is poor in the prior art, extinguishing effect is bad
Problem provides the fixed three-phase froth generation in the new Petrochemical of one kind and injection apparatus, fire extinguishing effect good with bubble stability
The advantage that fruit is good, anti-re-ignition performance is good.The second technical problem to be solved by the present invention be to provide it is a kind of with solve technology ask
The fixed three-phase froth in the corresponding Petrochemical of one of topic occurs and injection method.
One of in order to solve the above problem, The technical solution adopted by the invention is as follows: a kind of fixed three-phase bubble in Petrochemical
Foam occurs and injection apparatus, including fire pump room, foam solution pipeline, slurry compounding system, foam mixer, negative inspiratory pressure dress
It sets, fixed apparatus for spray of foam, there is fire cistern, fire pump, foam dope storage tank, froth ratio mixing in fire pump room
Device, interior foam mixer includes foam mixer entrance, flow spoiler, foam mixer outlet, and slurry compounding system includes powder
Storehouse, slurry blender, slush pump, fire pump room are connected by foam solution pipeline with foam mixer, and fire cistern passes through pipeline
It is connected with slurry blender, foam mixer outlet is connected by pipeline with negative pressure air-suction device one end, and negative pressure air-suction device is another
One end is connected with fixed apparatus for spray of foam.
In above-mentioned technical proposal, it is preferable that oil product storage tank is flat-top tank, internal floating roof tank, External floating roof tank.
In above-mentioned technical proposal, it is preferable that fire cistern is connected with fire pump entrance, fire pump outlet and foam ratio
Example mixer is connected.
In above-mentioned technical proposal, it is preferable that foam dope storage tank is connected with foam proportioner.
In above-mentioned technical proposal, it is preferable that powder storehouse is connected with slurry blender.
In above-mentioned technical proposal, it is preferable that slurry blender is connected with mud pump inlet, mud pump discharge and foams mix
Device entrance is connected.
In above-mentioned technical proposal, it is preferable that foam proportioner outlet is connected with foam solution pipeline.
In above-mentioned technical proposal, it is preferable that negative pressure air-suction device and fixed apparatus for spray of foam are mounted on oil product storage tank
Top, each negative pressure air-suction device and each fixed apparatus for spray of foam arrange that storage tank surrounding is evenly arranged 8~12 in groups
Group；Pressure is 0.2~0.5MPaG in foam mixer, and the outlet pressure of slush pump is 0.8MPaG.
In above-mentioned technical proposal, it is preferable that the diameter of foam mixer is 80~300mm and is greater than foam solution pipeline, bubble
Foam mixer entrance is expansion shape, and foam mixer outlet facilitates foam solution and mix with slurry to shrink shape.
In order to solve the above problem two, The technical solution adopted by the invention is as follows: a kind of fixed three-phase bubble in Petrochemical
Foam occurs and injection method, and in fire pump room, fire pump cancels waterproof from fire cistern, and foam proportioner is from bubble
Foam stoste storage tank takes foam dope, and fire water and foam dope mix in foam proportioner, obtains foam solution, then passes through
Foam solution pipeline is crossed to convey toward foam mixer；Slurry compounding system is taken from powder storehouse in the powder of three-phase froth preparation
Grain, fetches water from fire water pipeline, is mixed and stirred for uniformly, obtaining slurry, slush pump injects slurry in slurry blender
In foam mixer；Foam mixer carries out the foam solution come from foam solution pipeline with the slurry come from slush pump conveying
Mixing；The foam solution and slurry mixed liquor come from foam mixer outlet reaches negative pressure air-suction device, In by foam solution pipeline
Negative inspiratory pressure is completed in negative pressure air-suction device and gas-liquid-solid three-phase froth occurs, and then three-phase froth passes through fixed foam jet
Device ejects.
Currently existing technology is all the preparation of gas-liquid two-phase foam and spraying system, does not have the Optimality of three-phase foam extinguishing
Energy.This patent in the two-phase bubblejet systems of Petrochemical, set up three-phase froth occur and spraying system, have it is at low cost,
The advantage that foam stability is high, anti-re-ignition performance is good, can significantly improve tank field fire disaster emergency rescue ability, 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 fire pump room, 2 fire pumps, 3 fire cisterns, 4 foam dope storage tanks, 5 foam proportioners, 6 bubbles
Foam liquid pipe road, 7 powder storehouses, 8 slurry blenders, 9 slush pumps, 10 slurry compounding systems, 11 foam mixer entrances, 12 flow-disturbings
Device, the outlet of 13 foam mixers, 14 foam mixers, 15 negative pressure air-suction devices, 16 fixed apparatus for spray of foam, the storage of 17 oil products
Tank.
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 fixed three-phase froth in Petrochemical occurs and injection apparatus and method, as shown in Figure 1, mainly including fire-fighting
The groups such as pump house, foam solution pipeline, slurry compounding system, foam mixer, negative pressure air-suction device, fixed apparatus for spray of foam
At.Wherein, there are fire cistern, fire pump, foam dope storage tank, foam proportioner etc. in fire pump room；Slurry is prepared
System includes powder storehouse, slurry blender, slush pump etc.；It include foam mixer entrance, flow spoiler, foam in foam mixer
Mixer outlet etc..Negative pressure air-suction device and fixed apparatus for spray of foam mounting arrangements are in the top of oil product storage tank, oil product storage
Tank can be flat-top tank, internal floating roof tank, External floating roof tank etc..
In fire pump room, fire pump cancels waterproof from fire cistern, and foam proportioner is stored up from foam dope
Tank takes foam dope, cancels waterproof and foam dope mixes according to a certain percentage in foam proportioner, obtain foam solution,
Then it is conveyed by foam solution pipeline toward foam mixer.
In the fire fighting device of Petrochemical, together with foam solution pipeline, it is disposed with fire water pipeline, is used to store up to oil product
The water curtain water that tank top conveying fire water and tank are circumferentially arranged.
Slurry compounding system is arranged in beside oil product storage tank, close to foam solution pipeline and fire water pipeline.Slurry prepares system
System is taken from powder storehouse in the powder granule of three-phase froth preparation, is fetched water from fire water pipeline, according to a certain percentage in powder
It is mixed and stirred for uniformly, obtaining slurry in slurry blender.Slush pump with certain flow, injects slurry in foam mixer.In
Pressure is 0.2MPa in foam mixer beside oil product storage tank bottom, and the outlet pressure of slush pump is 0.8MPa, is greater than foam
Pressure and there is certain allowance in mixer.
Foam mixer is to mix the foam solution come from foam solution pipeline with the slurry come from slush pump conveying
The device of conjunction, inside are equipped with flow spoiler, for accelerating foam solution to mix with slurry.Flow spoiler is usually helix tube.Foam is mixed
The diameter of clutch is usually slightly thick compared with foam solution pipeline, and range scale is 80~300mm.Foam mixer entrance is expansion shape, bubble
Foam mixer outlet is to shrink shape, facilitates foam solution and mixes with slurry.
On the top of oil product storage tank, each negative pressure air-suction device and each fixed apparatus for spray of foam are arranged in groups, storage
Tank surrounding is evenly arranged 8 groups.The foam solution and slurry mixed liquor come from foam mixer outlet reaches negative by foam solution pipeline
Getter device is pressed, negative inspiratory pressure is completed in negative pressure air-suction device and gas-liquid-solid three-phase froth occurs, then three-phase froth is passed through
Fixed apparatus for spray of foam ejects.
The three-phase froth flow velocity that this patent ejects is fast, and flow is big, and foam is good in the trickling of pasta and spreadability.
The experiment of foam burn resistance:
(1) the small food tray of diameter 0.5m is placed among the big food tray of diameter 1.48m, pours into 4 liters of solvent naphthas in small food tray, big oil
6 liters of solvent naphthas are poured into disk, are laid with 1cm thickness water layer under big food tray.
(2) 30L foam is laid on the pasta in big food tray.
(3) oil for lighting small food tray records the time that 25% burning and 100% burning occurs in oil in big food tray.
The positive pressure three-phase froth 30L (coefficient of foaming 7.5) ejected in patent device is poured into big food tray and is carried out
Burn resistance experiment.After igniting, there is flare in the small food tray periphery 4.5min；To after 7.min, big food tray 25% burns；7.7min big
Food tray 60% burns；Always imperfect combustion, until after-flame oily in big food tray.
Positive pressure two-phase foam 30L (coefficient of foaming 7.5) is poured into progress burn resistance experiment in big food tray.Light a fire 2.5min
Afterwards, there is flare in small food tray periphery；To after 5.5min, big food tray 25% burns；The big food tray 100% of 6.0min burns.
The burn resistance of the positive pressure three-phase froth ejected in patent device is apparently higher than gas-liquid two-phase foam.
[embodiment 2]
According to condition described in embodiment 1, when the powder granule storage deficiency for being used to prepare three-phase froth in powder storehouse, or
When slurry compounding system breaks down, gas-liquid two-phase foam and ejecting extinguishing can be prepared.
In fire pump room, fire pump cancels waterproof from fire cistern, and foam proportioner is stored up from foam dope
Tank takes foam dope, cancels waterproof and foam dope installs certain proportion mixing in foam proportioner, obtain foam solution,
Then it is conveyed by foam solution pipeline toward foam mixer.Foam solution in foam solution pipeline passes through foam mixer, but is steeping
Slurry is not added in foam mixer, foam solution is fed directly to the top of oil product storage tank.Foam solution is complete in negative pressure air-suction device
Gas-liquid two-phase foam is generated at negative inspiratory pressure, is then ejected by fixed apparatus for spray of foam.
On the top of oil product storage tank, each negative pressure air-suction device and each fixed apparatus for spray of foam are arranged in groups, storage
Tank surrounding is evenly arranged 8 groups.
Oil product storage tank can be flat-top tank, internal floating roof tank, External floating roof tank etc..
The three-phase froth flow velocity that this patent ejects is fast, and flow is big, and foam is good in the trickling of pasta and spreadability.
The experiment of foam burn resistance:
(1) the small food tray of diameter 0.5m is placed among the big food tray of diameter 1.48m, pours into 4 liters of solvent naphthas in small food tray, big oil
6 liters of solvent naphthas are poured into disk, are laid with 1cm thickness water layer under big food tray.
(2) 30L foam is laid on the pasta in big food tray.
(3) oil for lighting small food tray records the time that 25% burning and 100% burning occurs in oil in big food tray.
The positive pressure three-phase froth 30L (coefficient of foaming 7.5) ejected in patent device is poured into big food tray and is carried out
Burn resistance experiment.After igniting, there is flare in the small food tray periphery 4.5min；To after 7.min, big food tray 25% burns；7.7min big
Food tray 60% burns；Always imperfect combustion, until after-flame oily in big food tray.
Positive pressure two-phase foam 30L (coefficient of foaming 7.5) is poured into progress burn resistance experiment in big food tray.Light a fire 2.5min
Afterwards, there is flare in small food tray periphery；To after 5.5min, big food tray 25% burns；The big food tray 100% of 6.0min burns.
The burn resistance of the positive pressure three-phase froth ejected in patent device is apparently higher than gas-liquid two-phase foam.
[embodiment 3]
A kind of fixed three-phase froth in Petrochemical occurs and injection apparatus and method, as shown in Figure 1, mainly including fire-fighting
The groups such as pump house, foam solution pipeline, slurry compounding system, foam mixer, negative pressure air-suction device, fixed apparatus for spray of foam
At.Wherein, there are fire cistern, fire pump, foam dope storage tank, foam proportioner etc. in fire pump room；Slurry is prepared
System includes powder storehouse, slurry blender, slush pump etc.；It include foam mixer entrance, flow spoiler, foam in foam mixer
Mixer outlet etc..Negative pressure air-suction device and fixed apparatus for spray of foam mounting arrangements are in the top of oil product storage tank, oil product storage
Tank can be flat-top tank, internal floating roof tank, External floating roof tank etc..
In fire pump room, fire pump cancels waterproof from fire cistern, and foam proportioner is stored up from foam dope
Tank takes foam dope, cancels waterproof and foam dope mixes according to a certain percentage in foam proportioner, obtain foam solution,
Then it is conveyed by foam solution pipeline toward foam mixer.
In the fire fighting device of Petrochemical, together with foam solution pipeline, it is disposed with fire water pipeline, is used to store up to oil product
The water curtain water that tank top conveying fire water and tank are circumferentially arranged.
Slurry compounding system is arranged in beside oil product storage tank, close to foam solution pipeline and fire water pipeline.Slurry prepares system
System is taken from powder storehouse in the powder granule of three-phase froth preparation, is fetched water from fire water pipeline, according to a certain percentage in powder
It is mixed and stirred for uniformly, obtaining slurry in slurry blender.Slush pump with certain flow, injects slurry in foam mixer.In
Pressure is 0.5MPa in foam mixer beside oil product storage tank bottom, and the outlet pressure of slush pump is 0.8MPa, is greater than foam
Pressure and there is certain allowance in mixer.
Foam mixer is to mix the foam solution come from foam solution pipeline with the slurry come from slush pump conveying
The device of conjunction, inside are equipped with flow spoiler, for accelerating foam solution to mix with slurry.Flow spoiler is usually taper.Foams mix
The diameter of device is usually slightly thick compared with foam solution pipeline, and range scale is 80~300mm.Foam mixer entrance is expansion shape, foam
Mixer outlet is to shrink shape, facilitates foam solution and mixes with slurry.
On the top of oil product storage tank, each negative pressure air-suction device and each fixed apparatus for spray of foam are arranged in groups, storage
Tank surrounding is evenly arranged 12 groups.The foam solution and slurry mixed liquor come from foam mixer outlet, reaches by foam solution pipeline
Negative pressure air-suction device, completes negative inspiratory pressure in negative pressure air-suction device and gas-liquid-solid three-phase froth occurs, and then three-phase froth passes through
Fixed apparatus for spray of foam is crossed to eject.
The three-phase froth flow velocity that this patent ejects is fast, and flow is big, and foam is good in the trickling of pasta and spreadability.
The experiment of foam burn resistance:
(1) the small food tray of diameter 0.5m is placed among the big food tray of diameter 1.48m, pours into 4 liters of solvent naphthas in small food tray, big oil
6 liters of solvent naphthas are poured into disk, are laid with 1cm thickness water layer under big food tray.
(2) 30L foam is laid on the pasta in big food tray.
(3) oil for lighting small food tray records the time that 25% burning and 100% burning occurs in oil in big food tray.
The positive pressure three-phase froth 30L (coefficient of foaming 7.5) ejected in patent device is poured into big food tray and is carried out
Burn resistance experiment.After igniting, there is flare in the small food tray periphery 4.5min；To after 7.min, big food tray 25% burns；7.7min big
Food tray 60% burns；Always imperfect combustion, until after-flame oily in big food tray.
Positive pressure two-phase foam 30L (coefficient of foaming 7.5) is poured into progress burn resistance experiment in big food tray.Light a fire 2.5min
Afterwards, there is flare in small food tray periphery；To after 5.5min, big food tray 25% burns；The big food tray 100% of 6.0min burns.
The burn resistance of the positive pressure three-phase froth ejected in patent device is apparently higher than gas-liquid two-phase foam.
[embodiment 4]
A kind of fixed three-phase froth in Petrochemical occurs and injection apparatus and method, as shown in Figure 1, mainly including fire-fighting
The groups such as pump house, foam solution pipeline, slurry compounding system, foam mixer, negative pressure air-suction device, fixed apparatus for spray of foam
At.Wherein, there are fire cistern, fire pump, foam dope storage tank, foam proportioner etc. in fire pump room；Slurry is prepared
System includes powder storehouse, slurry blender, slush pump etc.；It include foam mixer entrance, flow spoiler, foam in foam mixer
Mixer outlet etc..Negative pressure air-suction device and fixed apparatus for spray of foam mounting arrangements are in the top of oil product storage tank, oil product storage
Tank can be flat-top tank, internal floating roof tank, External floating roof tank etc..
In fire pump room, fire pump cancels waterproof from fire cistern, and foam proportioner is stored up from foam dope
Tank takes foam dope, cancels waterproof and foam dope mixes according to a certain percentage in foam proportioner, obtain foam solution,
Then it is conveyed by foam solution pipeline toward foam mixer.
In the fire fighting device of Petrochemical, together with foam solution pipeline, it is disposed with fire water pipeline, is used to store up to oil product
The water curtain water that tank top conveying fire water and tank are circumferentially arranged.
Slurry compounding system is arranged in beside oil product storage tank, close to foam solution pipeline and fire water pipeline.Slurry prepares system
System is taken from powder storehouse in the powder granule of three-phase froth preparation, is fetched water from fire water pipeline, according to a certain percentage in powder
It is mixed and stirred for uniformly, obtaining slurry in slurry blender.Slush pump with certain flow, injects slurry in foam mixer.In
Pressure is 0.4MPa in foam mixer beside oil product storage tank bottom, and the outlet pressure of slush pump is 0.8MPa, is greater than foam
Pressure and there is certain allowance in mixer.
Foam mixer is to mix the foam solution come from foam solution pipeline with the slurry come from slush pump conveying
The device of conjunction, inside are equipped with flow spoiler, for accelerating foam solution to mix with slurry.Flow spoiler is usually taper, foams mix
The diameter of device is usually slightly thick compared with foam solution pipeline, and range scale is 80~300mm.Foam mixer entrance is expansion shape, foam
Mixer outlet is to shrink shape, facilitates foam solution and mixes with slurry.
On the top of oil product storage tank, each negative pressure air-suction device and each fixed apparatus for spray of foam are arranged in groups, storage
Tank surrounding is evenly arranged 10 groups.The foam solution and slurry mixed liquor come from foam mixer outlet, reaches by foam solution pipeline
Negative pressure air-suction device, completes negative inspiratory pressure in negative pressure air-suction device and gas-liquid-solid three-phase froth occurs, and then three-phase froth passes through
Fixed apparatus for spray of foam is crossed to eject.
The three-phase froth flow velocity that this patent ejects is fast, and flow is big, and foam is good in the trickling of pasta and spreadability.
The experiment of foam burn resistance:
(1) the small food tray of diameter 0.5m is placed among the big food tray of diameter 1.48m, pours into 4 liters of solvent naphthas in small food tray, big oil
6 liters of solvent naphthas are poured into disk, are laid with 1cm thickness water layer under big food tray.
(2) 30L foam is laid on the pasta in big food tray.
(3) oil for lighting small food tray records the time that 25% burning and 100% burning occurs in oil in big food tray.
The positive pressure three-phase froth 30L (coefficient of foaming 7.5) ejected in patent device is poured into big food tray and is carried out
Burn resistance experiment.After igniting, there is flare in the small food tray periphery 4.5min；To after 7.min, big food tray 25% burns；7.7min big
Food tray 60% burns；Always imperfect combustion, until after-flame oily in big food tray.
Positive pressure two-phase foam 30L (coefficient of foaming 7.5) is poured into progress burn resistance experiment in big food tray.Light a fire 2.5min
Afterwards, there is flare in small food tray periphery；To after 5.5min, big food tray 25% burns；The big food tray 100% of 6.0min burns.
The burn resistance of the positive pressure three-phase froth ejected in patent device is apparently higher than gas-liquid two-phase foam.
[comparative example]
CN107441657A is related to a kind of three-phase jet foam generation equipment three-phase jet foam production method, is that three-phase is penetrated
Fire foam is flowed to occur and three-phase froth ejecting extinguishing device unit equipment and its method.Including feed flow part, gas supply part,
Mixing portion and stream portion；Feed flow part includes motor, concentrated tank, paddle paddle, foam solution outlet, valve, hair
Steep liquid delivery pipe, screw pump and flowmeter；Mixing portion includes pressure gauge one, Venturi tube, pressure gauge two and mixing chamber；Literary mound
In pipe front end be connected with two end of expanding foam solution delivery pipe, Venturi tube is equipped with air inlet, and pressure gauge one and pressure gauge two are distinguished
Positioned at Venturi tube front and back end, mixing chamber front end is equipped with stomata, and nozzle and foam screen are housed inside mixing chamber；Gas supply part divides
Air compressor machine, tee tube and gas-guide tube；Stream portion includes necking segment, connecting tube and injection pipe；Necking segment is arranged before mixing chamber
End, connecting tube are connected with necking segment front end, and injection pipe is connected with connecting tube front end.The patent is first stored in storage tank, then from
The inside is extracted, so that the possibility of big flow foam jet is limited, because the slurries in storage tank will soon spray.And this is specially
Benefit is suitable for big flow three-phase froth and sprays, specifically for the design of large-size chemical garden fire rescue.In this patent, foam is supplied
Be to system and slurry compounding system (10) it is separated, have special powder storehouse (7) storage powder.Foam solution comes from fire pump room
(1) fire water is mixed by foam proportioner (5) and the quantitative foam dope in foam dope storage tank (4)
It is mixed to obtain foam solution.Slurry compounding system (10) introduces appropriate foam solution from foam solution pipeline (6), is added to slurry blender
(8) in, high concentration slurry is mixed to get with the powder from powder storehouse (7).Main component in three-phase froth is water, and foam is former
Liquid and powder accounting are no more than 10%.The fire water supply foot of fire pump room (1), foam dope storage tank (4) can store foot
Foam dope is measured, powder storehouse (7) can store enough powders, to ensure that the preparation and injection of big flow three-phase froth.Separately
Outside, the flow spoiler (17) in the foam generating system (13) of this patent is cone or spiral flow spoiler, can strengthen powder and bubble
The blending of foam liquid, to obtain the three-phase froth of even particle distribution.Flow spoiler is net in CN107441657A, to gas-liquid-solid three
The disturbance blending function of phase is not so good as cone or spiral flow spoiler.
Claims (10)
1. a kind of fixed three-phase froth in Petrochemical occurs and injection apparatus, including fire pump room, foam solution pipeline, slurry are matched
System processed, foam mixer, negative pressure air-suction device, fixed apparatus for spray of foam have fire cistern, fire water in fire pump room
Pump, foam dope storage tank, foam proportioner, interior foam mixer includes foam mixer entrance, flow spoiler, foams mix
Device outlet, slurry compounding system include powder storehouse, slurry blender, slush pump, and fire pump room passes through foam solution pipeline and foam
Mixer is connected, and fire cistern is connected by pipeline with slurry blender, and foam mixer outlet passes through pipeline and negative inspiratory pressure
Device one end is connected, and the negative pressure air-suction device other end is connected with fixed apparatus for spray of foam.
2. the fixed three-phase froth generation in Petrochemical and injection apparatus according to claim 1, it is characterised in that oil product storage
Tank is flat-top tank, internal floating roof tank, External floating roof tank.
3. the fixed three-phase froth generation in Petrochemical and injection apparatus according to claim 1, it is characterised in that fire water
Pond is connected with fire pump entrance, and fire pump outlet is connected with foam proportioner.
4. the fixed three-phase froth generation in Petrochemical and injection apparatus according to claim 1, it is characterised in that foam is former
Liquid storage tank is connected with foam proportioner.
5. the fixed three-phase froth generation in Petrochemical and injection apparatus according to claim 1, it is characterised in that powder storehouse
It is connected with slurry blender.
6. the fixed three-phase froth generation in Petrochemical and injection apparatus according to claim 1, it is characterised in that slurry is stirred
It mixes device to be connected with mud pump inlet, mud pump discharge is connected with foam mixer entrance.
7. the fixed three-phase froth generation in Petrochemical and injection apparatus according to claim 1, it is characterised in that foam ratio
Example mixer outlet is connected with foam solution pipeline.
8. the fixed three-phase froth generation in Petrochemical and injection apparatus according to claim 1, it is characterised in that negative pressure is inhaled
Device of air and fixed apparatus for spray of foam are mounted on the top of oil product storage tank, each negative pressure air-suction device and each fixed bubble
Foam injection apparatus arranges that storage tank surrounding is evenly arranged 8~12 groups in groups；Pressure is 0.2~0.5MPaG, mud in foam mixer
The outlet pressure of stock pump is 0.8MPaG.
9. the fixed three-phase froth generation in Petrochemical and injection apparatus according to claim 1, it is characterised in that foam is mixed
The diameter of clutch is 80~300mm and is greater than foam solution pipeline, foam mixer entrance is expansion shape, foam mixer outlet
To shrink shape, facilitates foam solution and mixed with slurry.
10. a kind of fixed three-phase froth in Petrochemical occurs and injection method, using the device described in claim 1~9, In
In fire pump room, fire pump cancels waterproof from fire cistern, and foam proportioner takes foam former from foam dope storage tank
Liquid, fire water and foam dope mix in foam proportioner, obtain foam solution, then pass through foam solution pipeline toward foam
Mixer conveying；Slurry compounding system is taken from powder storehouse in the powder granule of three-phase froth preparation, from fire water pipeline
Water intaking is mixed and stirred for uniformly, obtaining slurry in slurry blender, and slush pump injects slurry in foam mixer；Foam
Mixer mixes the foam solution come from foam solution pipeline with the slurry come from slush pump conveying；From foam mixer
The foam solution and slurry mixed liquor that outlet comes reach negative pressure air-suction device by foam solution pipeline, complete in negative pressure air-suction device
Occur at negative inspiratory pressure and gas-liquid-solid three-phase froth, then three-phase froth is ejected by fixed apparatus for spray of foam.
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