CN105327475A - Energy storage type compressed gas foam fire extinguishing device - Google Patents
Energy storage type compressed gas foam fire extinguishing device Download PDFInfo
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- CN105327475A CN105327475A CN201510770692.2A CN201510770692A CN105327475A CN 105327475 A CN105327475 A CN 105327475A CN 201510770692 A CN201510770692 A CN 201510770692A CN 105327475 A CN105327475 A CN 105327475A
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Abstract
The invention discloses an energy storage type compressed gas foam fire extinguishing device. The device comprises a pressure liquid storage tank, a foam generator and a pressure steel cylinder, wherein the pressure liquid storage tank is filled with foam fire extinguishing agent mixed liquid; a liquid inlet pipe for filling the foam fire extinguishing agent mixed liquid is arranged on the pressure liquid storage tank; compressed nitrogen or air is filled in the pressure steel cylinder; the pressure steel cylinder is connected with the pressure liquid storage tank through a gas conveying pipeline; the foam generator is arranged in the pressure liquid storage tank, and is positioned above the foam fire extinguishing agent mixed liquid; and a liquid nozzle, a gas inlet and a spoiler are arranged on the foam generator. The energy storage type compressed gas foam fire extinguishing device can greatly improve the mixing capacity of foam liquid and high-pressure gas, so that jetted foams are high in kinetic energy, the foam stability and the foam jetting strength are enhanced, and the penetrability of such low-boiling-point materials as epoxypropane to the foams in burning is effectively stopped.
Description
Technical Field
The invention relates to a foam fire extinguishing device, in particular to an energy storage type compressed gas foam fire extinguishing device.
Background
The epoxy propane belongs to class AB combustible liquid, has low boiling point, high flame temperature, violent combustion and strong heat radiation, is difficult to extinguish when a fire disaster happens, and has huge danger in the production, storage and transportation processes. The existing fire-fighting device equipped with a low-boiling-point combustible liquid storage tank such as propylene oxide is an air-breathing foam fire-extinguishing system, and the fire-extinguishing agent adopts anti-dissolving synthetic foam. However, the test shows that: the fire extinguishing device can only control fire in a short time and can not extinguish fire completely, and once a fire disaster happens, the fire extinguishing device can not extinguish the fire effectively.
The air suction type foam fire extinguishing system aims to solve the problems that the foam stability of the air suction type foam fire extinguishing system is poor, the low-boiling-point liquid steam can not be effectively inhibited from easily penetrating through a foam layer, the flame temperature is too high, the foam is easy to break and the like. In the invention patent 200810120340.2, the invention relates to a fire-extinguishing product using clean gas as foaming agent, its manufacturing method and fire-extinguishing system, which is characterized in that the gas foam fire-extinguishing product is composed of clean gas fire-extinguishing agent and foam fire-extinguishing agent. In the utility model 201120473200.0, a heptafluoropropane foam fire extinguishing system relates to a heptafluoropropane foam fire extinguishing system which is applicable to extinguishing fire by low boiling point combustible liquid such as condensate oil, n-pentane and propylene oxide.
Both of the above patents relate to heptafluoropropane gas, and if the two fire extinguishing systems are directly applied to a closed space, the fire extinguishing effect is obvious. The above-mentioned patents are used only as gas propellants or in admixture with the foam concentrate. If the gas fire extinguishing concentration is too high, the harmful effect on the human body can be caused; if the release time of the fire extinguishing agent is more than 10 seconds and the fire extinguishing concentration is not reached, acidic decomposition products harmful to human bodies are generated and corrosion is caused to protective facilities. In addition, the flow of the foam sprayed by the fire extinguishing system is fixed and cannot be adjusted.
It will thus be seen that the prior art is susceptible to further improvements and enhancements.
Disclosure of Invention
In order to avoid the defects of the prior art, the invention provides the energy storage type compressed gas foam fire extinguishing device capable of enhancing the foam stability and the foam injection strength.
The technical scheme adopted by the invention is as follows:
the utility model provides an energy storage formula compressed gas foam extinguishing device, including the pressure liquid storage pot, foam generator and pressure steel bottle, be equipped with the foam extinguishing agent mixed liquid in the pressure liquid storage pot, be provided with the feed liquor pipe that is used for filling the foam extinguishing agent mixed liquid on the pressure liquid storage pot, be equipped with compressed nitrogen gas or air in the pressure steel bottle, the pressure steel bottle passes through gas transmission pipeline and links to each other with the pressure liquid storage pot, foam generator sets up in the pressure liquid storage pot and foam generator is located the top of foam extinguishing agent mixed liquid, be provided with liquid jet nozzle on the foam generator, air inlet and spoiler, foam generator's bottom is provided with the pipette, the top and the foam generator of pipette are linked together, the bottom of pipette inserts the lower part of pressure liquid storage pot, the top of pressure liquid storage pot is provided with the foam outlet pipe, the end.
And a pressure reducing valve is arranged on the gas conveying pipeline.
And a pressure gauge is arranged on the gas conveying pipeline.
And a one-way outlet valve is arranged on the foam outlet pipe.
And outlet flanges are arranged on the liquid inlet pipe, the gas conveying pipeline and the foam outlet pipe.
And a fire fighting belt is arranged between the foam pipe gun and the foam outlet pipe.
The foam tube gun is spindle-shaped.
And a ball valve is arranged between the foam pipe gun and the fire fighting belt.
And a blow-off pipe is arranged at the bottom of the pressure liquid storage tank, and a blow-off valve is arranged on the blow-off pipe.
And a travelling wheel is arranged below the pressure liquid storage tank.
Due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention can greatly improve the mixing capability of the foam liquid and the high-pressure gas, so that the sprayed foam has high kinetic energy, the stability and the foam spraying strength of the foam are enhanced, and the penetrability of low-boiling-point materials such as propylene oxide and the like to the foam during combustion is effectively prevented. Therefore, the fire extinguishing device can quickly extinguish the liquid fire with low boiling point, effectively control fire, quickly extinguish fire and prevent reburning.
2. The foam generator is different from the existing foam generator, the size of the foam nozzle and the air inlet on the foam generator is increased, the foam flow at the outlet can be increased, and the fire disaster of low-boiling-point liquid such as propylene oxide and the like can be quickly controlled and extinguished.
3. The compressed gas adopted in the invention is air and nitrogen, is easily obtained nontoxic and harmless gas, and can continuously and stably supply gas to the fire extinguishing device after decompression, thereby improving the mixing capacity and the spraying speed of the foam, leading the foam to have longer spraying distance and higher strength.
4. The fire extinguishing device can generate uniform, fine and stable kinetic energy foam without sucking air from the outside, and has high fire extinguishing speed and wide coverage range; the foam tube gun has no air suction port, simple manufacture and convenient operation.
5. The pressure storage tank is in a normal pressure state daily, the pressure is maintained at 0.5-0.6 MPa when the pressure storage tank works, and the working pressure is far lower than the working pressure of the conventional fire extinguishing device by 1.2MPa, so that the safety of the fire extinguishing device is improved.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
Wherein,
1. a blow-off valve 2, a pressure liquid storage tank 3, a liquid inlet pipe 4, a foam generator 5, an outlet flange 6, a pressure gauge 7, a pressure reducing valve 8, a foam pipe gun 9, a fire fighting belt 10, a one-way outlet valve 11, a pressure steel cylinder 12, a traveling wheel 13, a liquid suction pipe 14, foam extinguishing agent mixed liquid 15 and a blow-off pipe
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, but the present invention is not limited to these examples.
As shown in fig. 1 and 2, an energy storage type compressed gas foam fire extinguishing device comprises a pressure liquid storage tank 2, a foam generator 4 and a pressure steel cylinder 11, wherein traveling wheels 12 are arranged below the pressure liquid storage tank 4, so that the fire extinguishing device is convenient to move; a foam extinguishing agent mixed liquid 14 is filled in the pressure liquid storage tank 2, a liquid inlet pipe 3 for filling the foam extinguishing agent mixed liquid 14 is arranged on the pressure liquid storage tank 2, a blow-off pipe 15 is arranged at the bottom of the pressure liquid storage tank 2, and a blow-off valve 1 is arranged on the blow-off pipe 15; the pressure steel cylinder 11 is filled with compressed nitrogen or air, the pressure steel cylinder 11 is connected with the pressure liquid storage tank 2 through a gas conveying pipeline, a pressure reducing valve 7 and a pressure gauge 6 are arranged on the gas conveying pipeline, the pressure steel cylinder 11 is a high-pressure steel cylinder, and the pressure reducing valve 7 can stabilize the pressure of the compressed gas input from the high-pressure steel cylinder to the pressure liquid storage tank 2 to be between 0.5MPa and 0.6MPa, so that the requirement of the pressure liquid storage tank 2 for stable compressed gas is met; and outlet flanges 5 are arranged on the liquid inlet pipe 3 and the gas conveying pipeline.
The foam generator 4 is arranged in a gas phase space at the upper part of the pressure liquid storage tank 2, a liquid nozzle, an air inlet and a turbulence generator are arranged on the foam generator 4, a pipette 13 is arranged at the bottom of the foam generator 4, the top end of the pipette 13 is communicated with the foam generator 4, the bottom end of the pipette 13 is inserted into the lower part of the pressure liquid storage tank 2, the foam generator 4 is arranged in the pressure liquid storage tank 2 and is used for sucking foam extinguishing agent mixed liquid 14 stored in the pressure liquid storage tank 2 into the foam generator 4 from the pipette 13 and mixing and disturbing the foam extinguishing agent mixed liquid with compressed gas entering from an air inlet hole to form a turbulent flow impact turbulence generator, and the foam extinguishing agent mixed liquid 14 is further collided, dispersed and mixed to form foam; the top of pressure liquid storage pot 2 is provided with the foam outlet pipe, is provided with one-way outlet valve 10 and outlet flange 5 on the foam outlet pipe, and the end of foam outlet pipe is provided with foam pipe rifle 8, and foam pipe rifle 8 is the spindle body type, and its surface is smooth, does not have any poroid, be provided with fire control area 9 between foam pipe rifle 8 and the foam outlet pipe, be provided with the ball valve between foam pipe rifle 8 and the fire control area 9 for control spun foam flow.
The fire extinguishing effect of the invention is now verified by taking as an example the fire extinguishing apparatus and fire source configured as follows:
the pressure reservoir 2 had a capacity of 250L, and was charged with 14200L (80% charge) of a foam extinguishing agent mixture and 40L of a high-pressure steel cylinder containing compressed nitrogen gas having a pressure of 13 MPa. The fire extinguishing oil pan is 4.52 square meters, the fuel is propylene oxide, and the adding amount is 150 Kg.
200L of foam extinguishing agent mixed liquid 14 is filled in a liquid inlet pipe 3 of a pressure liquid storage tank 2, when a liquid fire disaster of propylene oxide needs to be extinguished or covered, a valve and a pressure reducing valve 7 of a high-pressure steel cylinder are firstly opened, the pressure of compressed gas can be instantly reduced to 0.5 MPa-0.6 MPa, the reduced pressure gas is conveyed into the pressure liquid storage tank 2 through a gas conveying pipeline, a one-way outlet valve 10 is opened, the foam extinguishing agent mixed liquid 14 enters a foam generator 4 from a liquid suction pipe 13 and is sprayed onto a spoiler under the action of a foam nozzle to form a mist liquid flow, meanwhile, the compressed gas in a gas phase space in the pressure liquid storage tank 2 enters the foam generator 4 through a gas inlet hole, the compressed gas is further mixed and collided with the foam extinguishing agent mixed liquid 14 to generate foam, the foam is flushed out through the one-way outlet valve 10 and enters a fire fighting belt 9 to be further mixed uniformly, a foam pipe gun 8, the fire extinguishing or covering of propylene oxide is carried out, and the performance indexes are shown in table 1.
TABLE 1 fire extinguishing test results for propylene oxide
| Working pressure/MPa | Foam liquid flow/(L/min) | Time/s of fire control | Time of fire extinguishing/s | Burn resistance time/min |
| 0.55 | 74.5 | 26 | 204 | ＞30 |
From the above test results, it can be seen that the fire extinguishing apparatus of the present invention can achieve a good fire extinguishing effect.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. An energy-storage type compressed gas foam fire extinguishing device comprises a pressure liquid storage tank, a foam generator and a pressure steel cylinder, the device is characterized in that a pressure liquid storage tank is filled with foam extinguishing agent mixed liquid, the pressure liquid storage tank is provided with a liquid inlet pipe used for filling the foam extinguishing agent mixed liquid, a pressure steel cylinder is filled with compressed nitrogen or air and is connected with the pressure liquid storage tank through a gas conveying pipeline, a foam generator is arranged in the pressure liquid storage tank and is positioned above the foam extinguishing agent mixed liquid, the foam generator is provided with a liquid nozzle, an air inlet and a spoiler, the bottom of the foam generator is provided with a liquid suction pipe, the top end of the liquid suction pipe is communicated with the foam generator, the bottom end of the liquid suction pipe is inserted into the lower part of the pressure liquid storage tank, the top end of the pressure liquid storage tank is provided with a foam outlet pipe, and the tail end of the foam.
2. An energy storing compressed gas foam fire extinguishing apparatus according to claim 1, wherein a pressure relief valve is provided in the gas delivery line.
3. An energy storage type compressed gas foam fire extinguishing apparatus according to claim 1 or 2, wherein a pressure gauge is provided on the gas delivery line.
4. An energy storing compressed gas foam fire extinguishing apparatus according to claim 1, wherein the foam outlet pipe is provided with a one-way outlet valve.
5. An energy storage type compressed gas foam fire extinguishing apparatus according to claim 1, wherein the liquid inlet pipe, the gas delivery pipeline and the foam outlet pipe are provided with outlet flanges.
6. An energy storing compressed gas foam fire extinguishing apparatus according to claim 1, wherein a fire hose is provided between the foam hose gun and the foam outlet hose.
7. An energy storing compressed gas foam fire extinguishing apparatus according to claim 1 or 6, wherein the foam tube gun is in the form of a spindle.
8. An energy storing compressed gas foam fire extinguishing apparatus according to claim 6, wherein a ball valve is provided between the foam hose gun and the fire hose.
9. The energy-storage type compressed gas foam fire extinguishing device as claimed in claim 1, wherein a drain pipe is arranged at the bottom of the pressure liquid storage tank, and a drain valve is arranged on the drain pipe.
10. An energy storage type compressed gas foam fire extinguishing apparatus according to claim 1, wherein a travelling wheel is provided below the pressure liquid storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770692.2A CN105327475A (en) | 2015-11-12 | 2015-11-12 | Energy storage type compressed gas foam fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770692.2A CN105327475A (en) | 2015-11-12 | 2015-11-12 | Energy storage type compressed gas foam fire extinguishing device |
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| CN105327475A true CN105327475A (en) | 2016-02-17 |
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| CN201510770692.2A Pending CN105327475A (en) | 2015-11-12 | 2015-11-12 | Energy storage type compressed gas foam fire extinguishing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920762A (en) * | 2016-04-21 | 2016-09-07 | 中国石油化工股份有限公司 | Pre-mixing type high-expansion foam generation device |
| CN111888689A (en) * | 2020-07-29 | 2020-11-06 | 中国电力科学研究院有限公司 | A mobile fire extinguishing device |
| CN113948807A (en) * | 2020-07-16 | 2022-01-18 | 哲弗智能系统（上海）有限公司 | Battery pack with intelligent fixed-point fire extinguishing function |
| US11559711B2 (en) | 2017-03-01 | 2023-01-24 | China Petroleum & Chemical Corporation | Foam producing method, fire extinguishing method, and appliance for foam extinguishing |
| CN117653978A (en) * | 2023-12-11 | 2024-03-08 | 兴化市方圆消防器材有限公司 | Capacity-variable foam fire hydrant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11980785B2 (en) | 2017-03-01 | 2024-05-14 | China Petroleum & Chemical Corporation | Foam producing method, fire extinguishing method, and appliance for foam extinguishing |
| CN113948807A (en) * | 2020-07-16 | 2022-01-18 | 哲弗智能系统（上海）有限公司 | Battery pack with intelligent fixed-point fire extinguishing function |
| CN111888689A (en) * | 2020-07-29 | 2020-11-06 | 中国电力科学研究院有限公司 | A mobile fire extinguishing device |
| CN117653978A (en) * | 2023-12-11 | 2024-03-08 | 兴化市方圆消防器材有限公司 | Capacity-variable foam fire hydrant |
| CN117653978B (en) * | 2023-12-11 | 2024-05-28 | 兴化市方圆消防器材有限公司 | Capacity-variable foam fire hydrant |
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tan Longmei Inventor after: Shang Zuzheng Inventor after: Zhang Tingting Inventor after: Jiang Ming Inventor after: Wu Jingfeng Inventor after: Zou Bing Inventor after: Zhang Hongxing Inventor after: Zhang He Inventor after: Yan Kele Inventor before: Tan Longmei Inventor before: Wu Jingfeng Inventor before: Zou Bing Inventor before: Jiang Ming Inventor before: Shang Zuzheng Inventor before: Zhang Hongxing Inventor before: Zhang He Inventor before: Yan Kele |
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Application publication date: 20160217 |
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| RJ01 | Rejection of invention patent application after publication |