CN203264097U - Foam fire-fighting device for external floating roof tank - Google Patents
Foam fire-fighting device for external floating roof tank Download PDFInfo
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- CN203264097U CN203264097U CN 201320233586 CN201320233586U CN203264097U CN 203264097 U CN203264097 U CN 203264097U CN 201320233586 CN201320233586 CN 201320233586 CN 201320233586 U CN201320233586 U CN 201320233586U CN 203264097 U CN203264097 U CN 203264097U
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- floating roof
- external floating
- roof tank
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Abstract
The utility model discloses a foam fire-fighting device for an external floating roof tank, and the foam fire-fighting device comprises an external conveying device and a foam spraying device, wherein the foam spraying device comprises a spraying circular pipe communicated with the external conveying device for conveying a foam mixed liquid; the spraying circular pipe is communicated with multiple spraying branch pipes which are communicated with a foam generator; the foam generator is communicated with a foam conveying pipe; the tail end of the foam conveying pipe is provided with a nozzle; the external conveying device comprises a foam mixed liquid inlet pipe, a riser, an inclined pipe and a metal hose which are successively communicated; the riser and the inclined pipe are respectively fixed on the tank wall and a tank top ladder through hoops; the metal hose is communicated with the spraying circular pipe. According to the utility model, traditional tank top spraying is changed into edge spraying, influences from wind power, guide plate structure and other factors can be completely eliminated, foam sprayed to the inner side of a foam weir plate can be obviously reduced, foam waste is reduced, the fire-fighting effect is increased and the fire risk is remarkably lowered.
Description
Technical field
The utility model relates to a kind of fixed froth installation for external floating roof tank.
Background technology
Due to the demand of energy strategy, in recent years, many large-scale oil depots and large oil tank have been set up in domestic various places.Wherein using maximum is exactly large-scale external floating roof tank.
The safety fire fighting problem of oil tank is particularly important.In case breaking out of fire not only can cause huge property loss, also can bring considerable damage to environment.The foam spray device is the main fire extinguishing equipment of large-scale external floating roof tank, is also the last line of defense of guaranteeing oil tank safety, currently mainly contains two kinds of installation forms: the one, and foam mixing liquid is by the tank deck ejecting extinguishing.Foam mixing liquid enters foam maker through the tank skin external pipeline, then flows into oil tank ring packing place by the deflector guiding foam that is arranged on tank deck along tank skin.The foam maker simplicity of design of this setting is difficult for damagedly during fire, be convenient at ordinary times safeguard, present domestic most oil tanks use this design.But because foam deflector design attitude is higher, the impact of the environmental factors such as wind-engaging, rain and floating roof height is larger, can cause foam be scattered or dilute; Because being subjected to the impact of guiding device, directly spray the area that is covered in burning surface limited simultaneously; Be subjected to the restriction of oil tank weather shield, if the opening part fire is not the vertical lower at foam maker, foam need to cover whole secondary seal could realize fire extinguishing, and during Initial Stage of Fire is not had effect.The 2nd, foam is by ejecting extinguishing on pontoon.This arranges generally by the tank bottom opening, by entering pontoon after collapsible tubes, utilizes water knockout drum that foam mixing liquid is transported to each jet in oil tank.Because of complex structure, conveyance conduit need to be subjected to the impact of the factor such as facility and hose quality in oil product stirring, tank by in tank, easily causes the damage of transfer pipeline, is difficult to again maintenance after damage, therefore uses less in oil tank.
The utility model content
The purpose of this utility model is to provide a kind of novel fixed froth installation for external floating roof tank.
For achieving the above object, the technical solution that the utility model adopts is:
A kind of fixed froth installation for external floating roof tank, it comprises outside conveyor and foam spray device, the foam spray device comprises spraying ring pipe, outside conveyor for delivery of foam mixing liquid is communicated with spraying ring pipe, spraying ring pipe is communicated with a plurality of spray arms, the spray arm is communicated with foam maker, and foam maker is communicated with foam pipeline, is provided with nozzle at the end of foam pipeline.
Preferably, described spray arm is evenly arranged along spraying ring pipe, and the number of spray arm is set to 8,10 or 12.
Preferably, described spraying ring pipe is arranged near the inboard hoop of foam weir plate.
Preferably, described foam maker is arranged on bottom the foam weir plate.
Preferably, described foam pipeline is arranged in the following way: extend to bearing plate bottom by foam maker, then extend upward the caulking gum scraping blade place that arrives bearing plate top.
Preferably, described nozzle is arranged on the top of the annular space between tank skin and foam weir plate, and its installation site is higher than the caulking gum scraping blade.
Preferably, described nozzle comprises two spouts in left and right, and described spout is comprised of oblique spout and hoop spout.
Preferably, described hoop spout is arranged on the outside of oblique spout, and oblique spout is involute, and the hoop spout is wedge shape.
Preferably, described outside conveyor comprises foam mixing liquid inlet tube, standpipe, inclined tube and the metal hose that is communicated with successively, and standpipe and inclined tube are fixed on tank skin and the floating ladder of tank deck by clip respectively, and metal hose is communicated with spraying ring pipe.
Preferably, in the bottom of standpipe and metal hose, 1 exhaust-valve is installed respectively.
Compare with traditional structure, useful technique effect of the present utility model is:
(1) the foam spray device changes the marginal mode spray into by traditional tank deck spray, can thoroughly eliminate the factor impacts such as wind-force, deflector structure, significantly reduce the foam volume that sprays to foam weir plate inboard, reduce the foam waste, improve the fire extinguishing effect, significantly reduce disaster hidden-trouble;
(2) employing with the nozzle arrangements of hoop and oblique spout, can enlarge point-to-point fire extinguishing scope, and makes foam be full of rapidly outside weir plate and the annular space between tank skin, and is more effective to the fire extinguishing of during Initial Stage of Fire;
(3) enter the oil tank floating roof by outside standpipe and realize marginal mode spray, can thoroughly stop the pipeline that brings when conveyance conduit is arranged in tank fragile, and be difficult to again the risk of overhauling after damaging.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and the specific embodiment:
Fig. 1 is the outside conveyor schematic diagram;
Fig. 2 is that the tank deck pipeline is arranged schematic diagram;
Fig. 3 is the schematic top plan view of foam spray device;
Fig. 4 is the nozzle arrangements schematic diagram;
Fig. 5 is the schematic side view of foam spray device.
In figure: 1-entry to mixed solution pipe, 2-standpipe, 3-inclined tube, 4-metal hose, the 5-clip, 6-tank skin, the floating ladder of 7-abhiseca, 8-exhaust-valve, the 9-spraying ring pipe, 10-sprays arm, 11-foam maker, 12-foam pipeline, the 13-nozzle, the oblique spout of 1301-, 1302-hoop spout, 14-foam weir plate, 15-bearing plate, 16-floating roof, the 17-tank foundation, 18-winding staircase, 19-platform.
The specific embodiment
As shown in Figure 1, 2, a kind of fixed froth installation for external floating roof tank, it comprises outside conveyor and foam spray device.Outside conveyor comprises foam mixing liquid inlet tube 1, standpipe 2, inclined tube 3 and metal hose 4, and foam mixing liquid inlet tube 1, standpipe 2, inclined tube 3 are communicated with successively with metal hose 4.Standpipe 2 and inclined tube 3 are fixed on tank skin 6 and the floating ladder 7 of tank deck by clip 5 respectively.In the bottom of standpipe 2 and metal hose 4,1 exhaust-valve 8 is installed respectively.The foam spray device comprises spraying ring pipe 9, metal hose 4 is communicated with spraying ring pipe 9, and spraying ring pipe 9 is communicated with a plurality of spray arms 10, and spray arm 10 is communicated with foam maker 11, foam maker 11 is communicated with foam pipeline 12, is provided with nozzle 13 at the end of foam pipeline 12.
As to further improvement of the utility model, as shown in Figure 3, a plurality of spray arms 10 are evenly arranged along spraying ring pipe 9, and the number of spray arm 10 can be set to 8,10 or 12.Spraying ring pipe 9 is arranged near the inboard hoop of foam weir plate 14.Foam maker 11 is arranged on foam weir plate 14 bottoms.
Further, as shown in Figure 5, foam pipeline 12 is arranged in the following way: extend to bearing plate 15 bottoms by foam maker 11, then extend upward the caulking gum scraping blade place that arrives bearing plate 15 tops.Nozzle 13 is arranged on the top of the annular space between tank skin 6 and foam weir plate 14, and its installation site is higher than the caulking gum scraping blade.
Further, as shown in Figure 4, nozzle 13 comprises two spouts in left and right, and described spout is comprised of with hoop spout 1302 oblique spout 1301.Hoop spout 1302 is arranged on the outside of oblique spout 1301, and oblique spout 1301 is involute, and hoop spout 1302 is wedge shape.
The method of operation of the present utility model is roughly as follows: foam mixing liquid enters foam mixing liquid inlet tube 1, then is delivered in spraying ring pipe 9 in the foam spray device through standpipe 2, inclined tube 3 and metal hose 4 successively.Spraying ring pipe 9 sprays arm 10 with the foam mixing liquid uniform distribution to each, foam mixing liquid produces a large amount of foams at the foam maker 11 place's air amounts that are communicated with spray arm 10, foam is delivered to nozzle 13 by foam pipeline 12, and the left and right sides spout by nozzle 13 sprays to the both sides hoop along the annular space between foam weir plate 14 outsides and tank skin 6 at last.
Claims (10)
1. fixed froth installation that is used for external floating roof tank, it is characterized in that: comprise outside conveyor and foam spray device, the foam spray device comprises spraying ring pipe, outside conveyor for delivery of foam mixing liquid is communicated with spraying ring pipe, spraying ring pipe is communicated with a plurality of spray arms, the spray arm is communicated with foam maker, and foam maker is communicated with foam pipeline, is provided with nozzle at the end of foam pipeline.
2. a kind of fixed froth installation for external floating roof tank according to claim 1, it is characterized in that: described spray arm is evenly arranged along spraying ring pipe, and the number of spray arm is set to 8,10 or 12.
3. a kind of fixed froth installation for external floating roof tank according to claim 1, is characterized in that: the inboard hoop layout of the close foam weir plate of described spraying ring pipe.
4. a kind of fixed froth installation for external floating roof tank according to claim 1 is characterized in that: described foam maker is arranged on foam weir plate bottom.
5. a kind of fixed froth installation for external floating roof tank according to claim 1, it is characterized in that, described foam pipeline is arranged in the following way: extend to bearing plate bottom by foam maker, then extend upward the caulking gum scraping blade place that arrives bearing plate top.
6. a kind of fixed froth installation for external floating roof tank according to claim 1, it is characterized in that: described nozzle is arranged on the top of the annular space between tank skin and foam weir plate, and its installation site is higher than the caulking gum scraping blade.
7. a kind of fixed froth installation for external floating roof tank according to claim 1 is characterized in that: described nozzle comprises two spouts in left and right, and described spout is comprised of oblique spout and hoop spout.
8. a kind of fixed froth installation for external floating roof tank according to claim 7, it is characterized in that: described hoop spout is arranged on the outside of oblique spout, and oblique spout is involute, and the hoop spout is wedge shape.
9. a kind of fixed froth installation for external floating roof tank according to claim 1, it is characterized in that: described outside conveyor comprises foam mixing liquid inlet tube, standpipe, inclined tube and the metal hose that is communicated with successively, standpipe and inclined tube are fixed on tank skin and the floating ladder of tank deck by clip respectively, and metal hose is communicated with spraying ring pipe.
10. a kind of fixed froth installation for external floating roof tank according to claim 9, is characterized in that: in the bottom of standpipe and metal hose, 1 exhaust-valve is installed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320233586 CN203264097U (en) | 2013-05-03 | 2013-05-03 | Foam fire-fighting device for external floating roof tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320233586 CN203264097U (en) | 2013-05-03 | 2013-05-03 | Foam fire-fighting device for external floating roof tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203264097U true CN203264097U (en) | 2013-11-06 |
Family
ID=49494600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320233586 Expired - Fee Related CN203264097U (en) | 2013-05-03 | 2013-05-03 | Foam fire-fighting device for external floating roof tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203264097U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619635A (en) * | 2018-05-09 | 2018-10-09 | 中国石油大学(北京) | Compressed-air foam intelligent fire device for outer floating roof crude oil storage tank |
| CN109675224A (en) * | 2019-01-29 | 2019-04-26 | 安徽省国发石化设备有限责任公司 | Fire-fighting system under oil tank liquid |
| CN111099550A (en) * | 2019-12-18 | 2020-05-05 | 安徽建筑大学 | Take foam formula oil storage tank oil pumping system of putting out a fire |
| CN114104531A (en) * | 2021-11-09 | 2022-03-01 | 蓝基工程科技有限公司 | Floating roof oil storage tank |
-
2013
- 2013-05-03 CN CN 201320233586 patent/CN203264097U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108619635A (en) * | 2018-05-09 | 2018-10-09 | 中国石油大学(北京) | Compressed-air foam intelligent fire device for outer floating roof crude oil storage tank |
| CN108619635B (en) * | 2018-05-09 | 2020-05-22 | 中国石油大学(北京) | Compressed air foam intelligent fire fighting device for external floating roof crude oil storage tank |
| CN109675224A (en) * | 2019-01-29 | 2019-04-26 | 安徽省国发石化设备有限责任公司 | Fire-fighting system under oil tank liquid |
| CN111099550A (en) * | 2019-12-18 | 2020-05-05 | 安徽建筑大学 | Take foam formula oil storage tank oil pumping system of putting out a fire |
| CN111099550B (en) * | 2019-12-18 | 2022-02-18 | 安徽建筑大学 | Take foam formula oil storage tank oil pumping system of putting out a fire |
| CN114104531A (en) * | 2021-11-09 | 2022-03-01 | 蓝基工程科技有限公司 | Floating roof oil storage tank |
| CN114104531B (en) * | 2021-11-09 | 2023-02-28 | 蓝基工程科技有限公司 | Floating roof oil storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140503 |