CN105727476A - Radial foam fire extinguishing system of oil storage tank - Google Patents
Radial foam fire extinguishing system of oil storage tank Download PDFInfo
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- CN105727476A CN105727476A CN201610105125.XA CN201610105125A CN105727476A CN 105727476 A CN105727476 A CN 105727476A CN 201610105125 A CN201610105125 A CN 201610105125A CN 105727476 A CN105727476 A CN 105727476A
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- fire
- storage tank
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
- A62C3/065—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products for containers filled with inflammable liquids
-
- 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
-
- 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
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a radial foam fire extinguishing system of an oil storage tank. The radial foam fire extinguishing system is characterized in that a buoyancy bracket floating on the oil surface is arranged inside the oil storage tank; a fire extinguishing foam spraying device is fixedly arranged on the buoyancy bracket; the fire extinguishing foam spraying device communicates with a fire extinguishing foam feeding device at the outer part of the oil storage tank through a pipeline; the fire extinguishing foam spraying device comprises a buffer collector arranged at the center part of the buoyancy bracket and eight spray pipes which are radially and uniformly distributed on the periphery of the buffer collector; the eight spray pipes are positioned in the same plane and communicate with the buffer collector; and nozzles which have downward openings and have a proper height away from the liquid surface are formed in each of the spray pipes in the length direction. The radial foam fire extinguishing system has the advantages that a fire extinguishing agent is saved (about a half or above), the fire extinguishing effect is good, and the efficiency is high, is applicable to fire extinguishing of various fixed-roof oil storage tanks, and can be popularized and applied to fire extinguishing of various fixed-roof combustible liquid storage tanks.
Description
Technical field:
The present invention relates to a kind of radial froth fire extinguishing system of oil storage tank, belong to fire-fighting and Fire Science technical field.
Background technology:
In recent years, oil product consumption is increased by China day by day, and oil storage tank fire is also increasing, and a lot of fire accidents accidents frequently occur.Tradition oil storage tank is all adopt traditional in tank body outer jet foam fire-fighting, and fire-fighting efficiency is low or does not have the effect of fire extinguishing at all, and waste fire foam is extremely serious.The liquid level adopted in recent years applies supply froth fire extinguishing system under foam or liquid level.Liquid level applies froth fire extinguishing system in foam flows downward process along inner tank wall, is subject to when burning effect of thermal-flame, particularly in low oil level situation, when fire foam flows out foam maker, major part foam is just vanished but without arrival liquid level in flowing downward process along inner tank wall, and waste fire foam is extremely serious；And adopting supply froth fire extinguishing system under liquid level is dispersed distribution when also arriving at pasta when high oil level, diffusion is slow, and also quickly vanishes when being subject to high-temperature flue gas effect；Tank internal safety valve is also possible to produce the refluence of high temperature oil product when at high temperature damaging simultaneously, and the extent of injury is bigger.Therefore, severe fire hazard situation is badly in need of the froth fire extinguishing system in oil storage tank is transformed, and the radial froth fire extinguishing system of improved oil storage tank not only can effectively put out oil storage tank fire, it is also possible to is applied to the fire extinguishing of flammable liquid storage tank.
Summary of the invention:
For overcoming the defect of prior art, it is an object of the invention to provide a kind of radial froth fire extinguishing system of oil storage tank, fire foam outlet and pasta in tank remain certain height, while effective supply fire foam, can also ensure that the multiple spot of fire foam is sprawled radially, quickly cover the pasta of burning, arrive the purpose of fire smothering.The fire foam spreading rate of the radial froth fire extinguishing system of oil storage tank is fast, and fire-fighting efficiency is high, and wastes fire foam hardly.
This invention address that technical problem adopts the following technical scheme that
A kind of radial froth fire extinguishing system of oil storage tank:
Arranging the buoyancy support being suspended on pasta in oil storage tank, be fixedly installed fire foam injection apparatus on described buoyancy support, described fire foam injection apparatus is connected with the fire foam feeder outside oil storage tank by pipeline；
Described buoyancy support is made up of 2～3 aluminium alloy circles constituting concentric structure and the reinforcement that is connected between aluminium alloy circle, is provided with ball float in the bottom of described aluminium alloy circle/reinforcement；
The jet pipe that described fire foam injection apparatus is distributed in buffered collection device periphery by the buffered collection device being located at aluminium alloy circle circle centre position and eight decile radially is constituted, eight jet pipes are in same plane and each connect with buffered collection device, and each jet pipe is interval with downward opening spray orifice along its length.
Described reinforcement is set to eight, and eight reinforcement deciles radially are distributed on the circumferencial direction of aluminium alloy circle；Described ball float is set to four, and four ball float deciles are distributed in the circumferencial direction of aluminium alloy circle.
The spheroid form of described ball float is elliptical shape ball or spherical, adopts 1 millimeter of corrosion resistant plate to be processed into, and through preservative treatment and the water pressure test, volume is 0.15 cubic metre～0.60 cubic metre.
Spacing between centrage and the buffered collection device bottom surface of each jet pipe is 10 centimetres, the internal diameter of jet pipe is 32 millimeters, spacing between adjacent orifices is 20 centimetres, the aperture of each spray orifice is 10～15 millimeters, and the height of each spray orifice distance pasta is at 2～10 centimetres, outer wall near first spray orifice distance buffered collection device of buffered collection device is 10 centimetres, and the spray orifice distance oil storage tank inner-wall of jet pipe outermost end is 20～30 centimetres.
Described buffered collection device height is 30 centimetres, and internal diameter is 30 centimetres, and wall thickness is 6 millimeters, steel make and through preservative treatment, the closed upper part of buffered collection device, portion integral formula be connected to length be 20 centimetres, diameter be the bottom joint steel pipe of 75 millimeters；It is welded with the second jointer in the lower end of described bottom joint steel pipe, is connected with the second jointer of fire-retardant foam delivery hose upper end.
Described fire-retardant foam delivery hose adopts common fire-resistant fire-fighting foams water band, total length is more than 2 times of oil storage tank height, and fire-retardant foam delivery hose lodge is on fire-resistant hose support, described fire-retardant foam delivery hose is carried pipe feed fire foam through the first jointer, foam maker by foam solution.
Described fire-resistant hose support adopts rustless steel to make, and its two ends are rustless steel disk, disk diameter 20 centimetres～60 centimetres, thickness 2 millimeters～6 millimeters, are fixed on buoyancy support；Two disk interludes are the free cylinder sleeve pipe of length 60 centimetres～150 centimetres, cylinder sleeve pipe adopts double-layer stainless steel pipe, and the diameter of internal layer rustless steel steel thimble is 10 centimetres, and two ends are fixed on disk, the diameter of outer layer rustless steel steel thimble is 15 centimetres, is freely socketed on inner layer steel pipe.
Compared with the prior art, beneficial effects of the present invention is embodied in:
(1) foam spreading rate of the present invention is fast, foam is few, fire-fighting efficiency is high in waste, simple in construction, easily operated, rational in infrastructure, and oil storage tank fire-fighting technique requirement can be reached.Adopt eight radial fire foam jet pipes, it is ensured that the protection domain of extinguishing chemical and Quick uniform diffusion, and efficient extinguishing effect, overcome the shortcoming that tradition tank body froth fire extinguishing system fire-fighting efficiency is low, waste foam is serious.Meet the purpose and requirement of effectively putting out tank fire；
(2) buoyancy support is supported by four ball floats, can remain that the spray orifice of fire foam jet pipe and liquid level are in certain distance range, significantly reducing fire foam stroke in flame and be subject to the ablation of flame and shattered to pieces probability, fire extinguishing procedure can save substantial amounts of fire foam.
It is radial that (3) eight radial fire foam jet pipes are arranged to ozzle formula, both ensure that effective extinguishing effect, reached again lightweight, volume is little, takes up space little, economic and practical, saves material, with low cost, install, transformation, easy to maintenance.
The nozzle spacing of (4) eight radial fire foam jet pipes is reasonable in design, the most proximal segment of each jet pipe and distalmost end spray orifice are reasonable with the distance of buffered collection device and oil storage tank inner-wall respectively, while guaranteeing that ejecting extinguishing foam can quickly sprawl comprehensive covering pasta, rational spacing also ensure that does not waste fire foam.
Accompanying drawing illustrates:
Fig. 1 is inventive structure schematic diagram；Fig. 2 is foam buffered collection device and radial fire foam nozzle structure schematic diagram；Fig. 3 is buoyancy supporting structure schematic diagram.
Number in the figure: 1-storage tank；2-fire pump；3-proportioner；4-fire foam liquid storage tank；5-shunt valve；6-pipeline valve；7-ball float；8-foam solution conveying pipe；9-foam maker；10-the first jointer；11-fire-retardant foam delivery hose；The fire-resistant hose support of 12-；13-jet pipe；14-buffered collection device；15-buoyancy support；16-the second jointer；17-bottom joint steel pipe；18-spray orifice；19-reinforcement.
Below by way of detailed description of the invention, and the invention will be further described in conjunction with accompanying drawing.
Detailed description of the invention:
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment: referring to accompanying drawing, the radial froth fire extinguishing system of oil storage tank of the present embodiment, it is that the buoyancy support 15 being suspended on pasta is set in oil storage tank, then being fixedly installed fire foam injection apparatus on buoyancy support 15, this fire foam injection apparatus is connected with the fire foam feeder outside oil storage tank by pipeline；
Referring to Fig. 3, buoyancy support 15 is made up of 2～3 aluminium alloy circles constituting concentric structure and the reinforcement 19 that is connected between aluminium alloy circle, is provided with ball float 7 in the bottom of aluminium alloy circle/reinforcement；
The jet pipe 13 that fire foam injection apparatus is distributed in buffered collection device 14 periphery by the buffered collection device 14 being located at aluminium alloy circle circle centre position and eight decile radially is constituted, eight jet pipes 13 are in same plane and each connect with buffered collection device 14, and each jet pipe 13 is interval with downward opening spray orifice 18 along its length.
The detailed construction of each several part is described below:
In specifically arranging, reinforcement 19 is set to eight, and eight reinforcement deciles radially are distributed on the circumferencial direction of aluminium alloy circle；Ball float 7 is set to four, and four ball float deciles are distributed on the circumferencial direction of aluminium alloy circle.The spheroid form of each ball float 7 is elliptical shape ball or spherical, adopts 1 millimeter of corrosion resistant plate to be processed into, and through preservative treatment and the water pressure test, volume is 0.15 cubic metre～0.60 cubic metre.
Spacing between centrage and buffered collection device 14 bottom surface of each jet pipe 13 is 10 centimetres, the internal diameter of jet pipe 13 is 32 millimeters, spacing between adjacent orifices 18 is 20 centimetres, the aperture of each spray orifice is 10～15 millimeters, and the height of each spray orifice distance pasta is at 2～10 centimetres, outer wall near first spray orifice distance buffered collection device 14 of buffered collection device 14 is 10 centimetres, and the spray orifice distance oil storage tank inner-wall of jet pipe 13 outermost end is 20～30 centimetres.
Buffered collection device 14 is highly 30 centimetres, and internal diameter is 30 centimetres, and wall thickness is 6 millimeters, steel make and through preservative treatment, the closed upper part of buffered collection device, portion integral formula be connected to length be 20 centimetres, diameter be the bottom joint steel pipe 17 of 75 millimeters；It is welded with the second jointer 16 in the lower end of bottom joint steel pipe 17, is connected with the second jointer 16 of fire-retardant foam delivery hose 11 upper end.
Fire-retardant foam delivery hose 11 adopts common fire-resistant fire-fighting foams water band, total length is more than 2 times of oil storage tank height, and fire-retardant foam delivery hose lodge is on fire-resistant hose support 12, fire-retardant foam delivery hose 11 is carried pipe 8 feed fire foam through the first jointer 10, foam maker 9 by foam solution.
Fire-resistant hose support 12 adopts rustless steel to make, and its two ends are rustless steel disk, disk diameter 20 centimetres～60 centimetres, thickness 2 millimeters～6 millimeters, is fixed on buoyancy support 15；Two disk interludes are the free cylinder sleeve pipe of length 60 centimetres～150 centimetres, cylinder sleeve pipe adopts double-layer stainless steel pipe, and the diameter of internal layer rustless steel steel thimble is 10 centimetres, and two ends are fixed on disk, the diameter of outer layer rustless steel steel thimble is 15 centimetres, is freely socketed on inner layer steel pipe.
Referring to Fig. 1,2, the radial froth fire extinguishing system of the present embodiment oil storage tank, extracted from storage tank 1 by fire pump 2 and supply fire water, fire-fighting current is when the Venturi tube of pump proportioner 3, certain negative pressure can be produced, fire fighting foam agent is pumped out from fire foam liquid storage tank 4, and sends in pump proportioner 3, mix with the fire water of supply in pump proportioner 3.After mixed fire foam mixed liquor flows through pipeline valve 6, it is transported in foam maker 9 produces fire foam by the outer foam solution conveying pipe 8 of tank that diameter is 75 millimeters.Meanwhile, one shunt valve 5 is being set from one end distance of pump discharge, is putting out a fire use for multiple oil storage tanks simultaneously.Then through being connected with the first jointer 10 and lodge fire-retardant foam delivery hose 11 on fire-resistant hose support 12.First jointer 10 is apart from inner tank wall 6 centimetres.The second jointer 16 arriving foam buffered collection device 14 bottom through fire-retardant foam delivery hose 11 is transported in foam buffered collection device 14, arrive eight the radial fire foam jet pipes 13 connected with foam buffered collection device 14 again, flow in tank in oil product by the spray orifice 18 arranged down on jet pipe, and it is suspended in pasta formation blanket covering, fire smothering.
In concrete application, model or the concrete set-up mode of each parts are as described below:
Storage tank 1 is normal pressure storage tank, and volume is not less than 20 cubic metres.Fire pump 2 is centrifugal water pump, and outlet pressure is 0.3MPa～1.0MPa, and water inlet end is provided with filter screen.Foam proportioner 3 is around-the-pump proportioner, and mixing ratio is 0.9～1.1.Fire foam liquid storage tank 4 is normal pressure steel tank, internal through preservative treatment.Use when shunt valve 5 is put out a fire for multiple tank bodies simultaneously.As long as closing the valve above it during single oil tank fire extinguishing.Pipeline valve 6 includes a gate valve and a check-valves.Ball float 7 is four, and spheroid form is elliptical shape ball or spherical, and adopting thickness is that 0.2 millimeter～0.5 millimeter corrosion resistant plate welding is made, and outer layer is through preservative treatment.Volume is 0.15 cubic metre～0.60 cubic metre.The outer foam solution conveying pipe 8 of tank adopts seamless steel pipe, and diameter is 50 millimeters～75 millimeters.Foam maker 9 is vertical foam generator, and its outlet arranges a steel pipe extending in tank 6 centimeter length, is connected with the first jointer 10.
Wherein, the first jointer 10 and the second jointer 16 adopt common fire-fighting jointer.
Fire-retardant foam delivery hose 11 adopts common fire-resistant fire-fighting foams water band, and total length is more than 2 times of oil storage tank height.The necessary lodge of fire-retardant foam delivery hose is on fire-resistant hose support 12, it is prevented that fire-retardant foam delivery hose is wound around or stuck.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (7)
1. the radial froth fire extinguishing system of oil storage tank, it is characterised in that:
The buoyancy support (15) being suspended on pasta is set in oil storage tank, being fixedly installed fire foam injection apparatus on described buoyancy support (15), described fire foam injection apparatus is connected with the fire foam feeder outside oil storage tank by pipeline；
Described buoyancy support (15) is by 2～3 aluminium alloy circles constituting concentric structure and is connected to reinforcement (19) composition between aluminium alloy circle, is provided with ball float (7) in the bottom of described aluminium alloy circle/reinforcement；
The jet pipe (13) that described fire foam injection apparatus is distributed in buffered collection device (14) periphery by the buffered collection device (14) being located at aluminium alloy circle circle centre position and eight decile radially is constituted, eight jet pipes (13) are in same plane and each connect with buffered collection device (14), and each jet pipe (13) is interval with downward opening spray orifice (18) along its length.
2. a kind of radial froth fire extinguishing system of oil storage tank according to claim 1, it is characterised in that described reinforcement (19) is set to eight, and eight reinforcement deciles radially are distributed on the circumferencial direction of aluminium alloy circle；Described ball float (7) is set to four, and four ball float deciles are distributed on the circumferencial direction of aluminium alloy circle.
3. a kind of radial froth fire extinguishing system of oil storage tank according to claim 2, it is characterized in that, the spheroid form of described ball float (7) is elliptical shape ball or spherical, 1 millimeter of corrosion resistant plate is adopted to be processed into, and through preservative treatment and the water pressure test, volume is 0.15 cubic metre～0.60 cubic metre.
4. a kind of radial froth fire extinguishing system of oil storage tank according to claim 1, it is characterized in that, spacing between centrage and buffered collection device (14) bottom surface of each jet pipe (13) is 10 centimetres, the internal diameter of jet pipe (13) is 32 millimeters, spacing between adjacent orifices (18) is 20 centimetres, the aperture of each spray orifice is 10～15 millimeters, and the height of each spray orifice distance pasta is at 2～10 centimetres, outer wall near first spray orifice distance buffered collection device (14) of buffered collection device (14) is 10 centimetres, the spray orifice distance oil storage tank inner-wall of jet pipe (13) outermost end is 20～30 centimetres.
5. a kind of radial froth fire extinguishing system of oil storage tank according to claim 1, it is characterized in that, described buffered collection device (14) is highly 30 centimetres, internal diameter is 30 centimetres, wall thickness is 6 millimeters, made by steel and through preservative treatment, the closed upper part of buffered collection device, portion integral formula be connected to length be 20 centimetres, diameter be the bottom joint steel pipe (17) of 75 millimeters；It is welded with the second jointer (16) in the lower end of described bottom joint steel pipe (17), is connected with second jointer (16) of fire-retardant foam delivery hose (11) upper end.
6. a kind of radial froth fire extinguishing system of oil storage tank according to claim 5, it is characterized in that, described fire-retardant foam delivery hose (11) adopts common fire-resistant fire-fighting foams water band, total length is more than 2 times of oil storage tank height, and fire-retardant foam delivery hose lodge is on fire-resistant hose support (12), described fire-retardant foam delivery hose (11) is managed (8) feed fire foam through the first jointer (10), foam maker (9) by foam solution conveying.
7. a kind of radial froth fire extinguishing system of oil storage tank according to claim 6, it is characterized in that, described fire-resistant hose support (12) adopts rustless steel to make, its two ends are rustless steel disk, disk diameter 20 centimetres～60 centimetres, thickness 2 millimeters～6 millimeters, be fixed on buoyancy support (15)；Two disk interludes are the free cylinder sleeve pipe of length 60 centimetres～150 centimetres, cylinder sleeve pipe adopts double-layer stainless steel pipe, and the diameter of internal layer rustless steel steel thimble is 10 centimetres, and two ends are fixed on disk, the diameter of outer layer rustless steel steel thimble is 15 centimetres, is freely socketed on inner layer steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610105125.XA CN105727476A (en) | 2016-02-25 | 2016-02-25 | Radial foam fire extinguishing system of oil storage tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610105125.XA CN105727476A (en) | 2016-02-25 | 2016-02-25 | Radial foam fire extinguishing system of oil storage tank |
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| Publication Number | Publication Date |
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| CN105727476A true CN105727476A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610105125.XA Pending CN105727476A (en) | 2016-02-25 | 2016-02-25 | Radial foam fire extinguishing system of oil storage tank |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581909A (en) * | 2016-12-16 | 2017-04-26 | 安徽建筑大学 | Cross-shaped dry powder extinguishing cover system |
| CN110420413A (en) * | 2019-08-22 | 2019-11-08 | 应急管理部天津消防研究所 | A kind of floating top pot floating dish formula compressed air foam fire extinguishing system and extinguishing method |
| CN113030177A (en) * | 2019-12-25 | 2021-06-25 | 中国石油化工股份有限公司 | Tank area flowing fire simulation and rescue protection test system and test method |
| CN113368432A (en) * | 2021-06-29 | 2021-09-10 | 安徽省国发石化设备有限责任公司 | Fire control unit based on full flexible hose |
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| CA2442621A1 (en) * | 2001-04-12 | 2002-10-24 | Ping-Li Yen | Portable fire protection apparatus and method using water mist |
| CN202777517U (en) * | 2012-09-26 | 2013-03-13 | 镇海国家石油储备基地有限责任公司 | Oil tank foam fire-fighting device |
| CN203663285U (en) * | 2014-01-20 | 2014-06-25 | 苏州市江南石化机械有限公司 | Foam fire-extinguishing device for crude oil storage tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1087838A (en) * | 1992-12-08 | 1994-06-15 | 中国人民解放军总参谋部炮兵装备技术研究所 | Float-suspension dry powder fire-extinguishing system for oil tank |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106581909A (en) * | 2016-12-16 | 2017-04-26 | 安徽建筑大学 | Cross-shaped dry powder extinguishing cover system |
| CN106581909B (en) * | 2016-12-16 | 2019-05-14 | 安徽建筑大学 | Cross-shaped dry-chemical fire extinguishing cover system |
| CN110420413A (en) * | 2019-08-22 | 2019-11-08 | 应急管理部天津消防研究所 | A kind of floating top pot floating dish formula compressed air foam fire extinguishing system and extinguishing method |
| CN113030177A (en) * | 2019-12-25 | 2021-06-25 | 中国石油化工股份有限公司 | Tank area flowing fire simulation and rescue protection test system and test method |
| CN113030177B (en) * | 2019-12-25 | 2024-03-26 | 中国石油化工股份有限公司 | Tank field flame dripping simulation and rescue protection test system and test method |
| CN113368432A (en) * | 2021-06-29 | 2021-09-10 | 安徽省国发石化设备有限责任公司 | Fire control unit based on full flexible hose |
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Address after: 230601 Hefei economic and Technological Development Zone, Anhui, No. 292 Ziyun Road Applicant after: Anhui University of Architecture Address before: 230022 No. 856 South Jinzhai Road, Anhui, Hefei Applicant before: Anhui University of Architecture |
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Application publication date: 20160706 |
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