CN85100186B - The method and apparatus of combined type powder gas generator emission fire-fighting powder - Google Patents
The method and apparatus of combined type powder gas generator emission fire-fighting powder Download PDFInfo
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- CN85100186B CN85100186B CN85100186A CN85100186A CN85100186B CN 85100186 B CN85100186 B CN 85100186B CN 85100186 A CN85100186 A CN 85100186A CN 85100186 A CN85100186 A CN 85100186A CN 85100186 B CN85100186 B CN 85100186B
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Abstract
The present invention produces burning gases emission dry powder with combined type powder gas generator to carry out method for extinguishing fire and device.The gases at high pressure that utilize powder burning to generate charge in the dry powder can and high-speed project to the scene of a fire after the dry powder blend and realize putting out a fire to save life and property B, C class and appliance fire.The burning of gunpowder is by the control of ignition control system, realizes the continuous air feed of pulsed.The device of combined type powder gas generator emission dry powder comprises one-way cock, gas collection pipe and the nozzle of air supply etc. of ignition control system, gas generator, high temperature resistant anti-ablation.The present invention can be used on the various dry powder fire-fighting equipments.The present invention is simple in structure, safeguards easy to usely, and starting rapidly can realize fire extinguishing continuously in the scene of a fire, especially run into accidental destruction such as war, earthquake at Power Environment Monitoring Network after, can not lose operational efficiency.
Description
The invention belongs to the put out the fire fire prevention of B, C class fire and appliance fire of dry powder doses.
Use method and apparatus of the present invention, powder extinguishing agent is sprayed to the scene of a fire, the fuel gas that is suitable for putting out a fire to save life and property, flammable liquid, combustible metal and electric type fire.The present invention can be used on motor-driven dry powder fire-engine of all kinds of sizes and the dedicated fixed formula dry powder fire-fighting equipment.
Current, the domestic and international dry-chemical fire extinguishing fire plant that uses, its dry powder launch power generally all adopts compressed nitrogen or carbon dioxide gas; As the CF110 type dry powder fire-engine of China Baoji fire-fighting equipment factory in 1973 development, devices such as six of the nitrogen cylinders of one of the dry powder can that can hold 1 ton in dry powder, 240 liters of total capacities and dry powder emission big gun are housed; During the emission powder extinguishing agent, be power, after the pressure-reducing valve decompression, charge in the dry powder can that the gas potential energy becomes kinetic energy, carry dry powder and spray at a high speed with the intensity of per second more than 20 kilograms, utilize its dust cloud fire extinguishing from the emission big gun with the high pressure nitrogen.This device exists following problem and shortcoming:
(1) volume of Compressed Gas is big, Heavy Weight.
(2) long term seal of gas cylinder and big capacity gas cylinder are difficult for solving.
(3) the operating performance more complicated of compressed gas cylinder air feed, the cycle of changing gas cylinder is longer, and in the area of no Compressed Gas supply, or in war and violent earthquake zone, Power Environment Monitoring Network wrecks, and when fire is frequent, is difficult to carry out fire extinguishing.
(4) be difficult for realizing fire extinguishing continuously in the scene of a fire.
(5) be difficult for realizing operation automation.
Also reported the method and apparatus of the gas emission powdery extinguishing chemical of another kind of employing detonation of a cartridge generation in the recent period in the foreign patent document, as 80 years SU680744 of the Soviet Union, 83 years patents such as DE3122897 of 82 years SU860782 and West Germany, but this technology also has defective, can not produce a large amount of gases to launch a large amount of powder extinguishing agents, can only disposablely use, service life is short, and explosion chamber weight is big, and is dangerous in the use; Not only putting out fire disaster has certain limitation, and it also is problematic being used for motor-driven fire plant.
According to the described single powder gas generator of No. 2865456 patents of the U.S. in 1958, launch dry powder with it, both can not obtain the generation that level stops combustion gas.Can not launch a large amount of dry powder cheaply again.
In order to address the above problem, the inventor has invented with combined type powder gas generator and has produced the method and the device thereof of gas emission dry-chemical fire extinguishing to replace Compressed Gas and ignition charge, has solved the disadvantage in said method and the device.
Main points of the present invention:
1. it is made up of mechanisms such as several gas generators, the unidirectional high temperature resistant valve of anti-ablation the, appendix, discharge, one-way cock, gas nozzle, Iganition control system, dry powder can, powder fire monitor, safety valves.
2. launch the gases at high pressure of the power of dry powder, dry powder and the about 60/l of weight ratio that uses gunpowder from the powder burning generation.
3. gas generator is handled by Iganition control system, as required, and ignition one by one successively; High-pressure gas divides three the tunnel by pipeline dry powder can be carried out the continuous air feed ， of pulsed And and can accomplish that level stops.
4. dry powder can reaches 10～12 kilograms/centimeter of rated operating pressures
2The time, can open switch valve, dry powder-fuel gas mixture sprays at a high speed by the emission big gun throws the scene of a fire, puts out target on fire with dust cloud.
Technical solution of the present invention in conjunction with the accompanying drawings, is summarized as follows.
Fig. 1, expression combustion gas emission dry powder apparatus system, it comprises: gas generator (1), adiabatic apparatus (2), the high temperature resistant one-way cock of anti-ablation the (3), appendix (4), filter (5), discharge (6), gas distribution pipe (7), check valve (8), gas nozzle (9), dry powder can (10), dry powder (11), safety valve (12), dry powder barrel (13), switch valve (14), gun muzzle (15), injection stream (16), electric contact pressure gauge (17), Iganition control system (18), lead (19).
Fig. 2, the rigging position of expression gas generator, it is made up of gas generator (1) (five) and appendix (2) (four) totally totally.
Fig. 3, expression gas generator structure, it is made up of igniter (1), burning chamber shell (2), powder charge (3), baffle plate (4), throttle orifice (5), the high temperature resistant one-way cock of anti-ablation the (6) etc.
Fig. 4, the expression Iganition control system, (1)～(5) are that gas generator, (6) they are dry powder cans on the figure, (7) are electric contact pressure gauges, JK
1～JK
7Expression relay contact-making switch, Pe
1And Pe
2K is risen and decline qualification pressure automatic control electric contact in expression respectively
WFor opening fire with artillery travel switch, Js is adjustable transistor timed unit, W
kBe power switch, E is 6～12 volts of dc sources, K
1～K
5Hand switch during for manual control,
For opening fire with artillery indicator lamp,
Be power supply indicator.
With the fire-fighting equipment of adorning 1 ton of dry powder is example, and the operation principle and the structure of the method and apparatus of taking this emission dry powder is described.Launch 1 ton of dry powder, approximately need 15 kilograms of gunpowder, it is divided in five gas generators in parallel, preface ignition one by one successively realizes the continuous air feed of pulsed.This air supply method, cost is low, and what be convenient to realize air feed has level to stop and starting.
Each gas generator shell adopts thick-walled seamless steel pipes hot pressing to close up, inwall is coated with anti-2300 ℃ heat insulating coat, and adorn 3 kilograms of double-base powders in the shell, size of powder charge is 140 millimeters of external diameters, 36 millimeters of internal diameters, long 130 millimeters, it is under the effect of 6～12 volts of dc sources, make igniter work, but just ignition powder charge.Working time is about 3～4 seconds, and the ambient temperature range of operate as normal is ± 40 ℃.
When receiving the fire extinguishing instruction, whether operator checkpoint ignition circuit is in normal condition.If all are normal, turn on the power switch W
k, power supply indicator just brightens, and opens hand switch K again
1The work of first ignition of gas generator, adjustable transistor timed unit is worked simultaneously, at this moment gas generator air feed according to certain rules, as Fig. 1, combustion gas is by the high temperature resistant one-way cock of anti-the ablation (3), through appendix (4), and filter (5), discharge (6), gas distribution pipe (7) divides three the road from nozzle (9) inflow dry powder can (10), and static dry powder (11) is stirred in combustion gas and boiling is got up, and makes it to be in fluidized state.After first gas generator end-of-job, the pressure in the dry powder can not reach 12 kilograms/centimeter of rated operating pressures
2, this moment is because adjustable transistor timed unit J
SEffect, second automatic ignition operation of gas generator.Approximately when second gas generator end-of-job, dry powder can (10) internal pressure just can reach rated operating pressure, and this process is the continuous charge stage.This stage approximately needed for 6～8 seconds, needed about six cubic metres of combustion gas.As long as the dry powder can internal pressure reaches rated operating pressure, the upper change point of electric contact pressure gauge (17) is connected, and opens fire with artillery indicator lamp and brightens, and the gunner just can open switch valve (14) immediately.At this moment dry powder-the fuel gas mixture that is in high pressure just from barrel (13), switch valve (14), gun muzzle (15) high velocity jet to the scene of a fire.In 6 seconds, just 80 square metres gasoline big fire can be put out.At this moment used dry powder is about 300～400 kilograms, 6 kilograms of gunpowder.After fire extinguishing, operating personnel cut off the electricity supply immediately, and remaining gas generator is ignition operation no longer just.
When fire is very big, when fire can not put out within 6 seconds, under the effect of electric contact pressure gauge (17), drop to threshold pression Pe according to the dry powder can internal pressure
2(promptly 8 kilograms/centimeter
2), just can start the 3rd gas generator, continue tonifying Qi.In like manner can be with the 4th, the 5th ignition of gas generator, till putting out big fire.
All injecting time was 30～40 seconds, and jet length is about 35～40 meters.
For preventing work mistake and the excessive contingency of dry powder can internal pressure taking place, safety valve is housed on the dry powder can.If during jar internal pressure overrate, it will be opened automatically, loses heart.
For reducing cost, easy and simple to handle and controlledly supply combustion gas, this device is equipped with several gas generators.This as mentioned above configuration can be after fire suppression, and the work of each gas generator after stopping immediately is to save the energy and dry powder., also can start once more, continuously fire extinguishing if needed.Such device can cause following two serious problems:
(1) several gas generators are worked successively, and when first work, the high temperature and high pressure gas that is produced can seal in idle gas generator, causes accidental ignition.
(2) high-temperature high-pressure fuel gas of gas generator generation can heat the gas generator of not working, and causes spontaneous ignition.
For eliminating above-mentioned two shortcomings, high temperature resistant one-way cock of anti-ablation the (6) (referring to Fig. 3) and heat insulation sealing device (2) (referring to Fig. 1) are housed at the throttle orifice place of gas generator.One-way cock adopts high temperature resistant ablation resistant material, 30 kilograms/centimeter of resistance to compressions
2, 2300 ℃ of heatproofs are installed in five gas generators on four summits and diagonal intersection point of 400 * 300 rectangle, as shown in Figure 2 simultaneously.On Fig. 2, (1) is gas generator, and (2) are appendix.
Filter on the air delivering pipeline (5) prevents that foreign material from entering in the dry powder can (referring to Fig. 1).
The effect of check valve (8) (referring to Fig. 1) is to prevent that interior combustion gas of dry powder can and dry powder from blowing back into discharge.
Three nozzles (9) on Fig. 1 are to be distributed on the summit of equilateral triangle of dry powder can bottom, and the circumscribed circle diameter of equilateral triangle is the 1/2(500 millimeter of dry powder can diameter), and concentric with the dry powder can cross circular section.Steam vent on the nozzle is uniformly distributed along the circumference, and the steam vent gross area should be greater than the area of gas generator throttle orifice, otherwise will meet accident.
Gas transmission and discharge are the mild steel seamless steel pipe, and fin is housed outward, and its effect is to prevent that tube wall temperature is too high.
Nozzle of air supply and unidirectional spherical valve adopt special ablation resistant material, and spherical valve is by gravity and the effect of dry powder can internal pressure, stop combustion gas and dry powder to flow backwards.
Advantage of the present invention can compare by 1 ton of fire fighting truck of the CF110 type identical with extinguishing property, is illustrated, and sees following table for details:
| CF110 type dry powder fire-engine (Compressed Gas is a power) | CFR10 type combustion gas dry powder fire-engine (is power with the combustion gas) | |
| 1 | Carry 1 ton in dry powder | Carry 1 ton in dry powder |
| 2 | Adopt 4 tons of automobile chassises | Adopt 2 tons of automobile chassises |
| 3 | 6 of operating personnel | 3 of operating personnel |
| 4 | Inflationtime 2～3 minutes | Inflationtime 6～10 seconds |
| 5 | The compressed gas cylinder weight and volume is big, can't solve the gas leakage problem, and especially in no high pressure gas supply, or under the war, earthquake conditions, power destruction in the time of can't air feed, has the possibility of forfeiture fighting capacity. | Anywhere or under earthquake and war condition,, also can put out a fire even can't air feed. |
| 6 | Complex structure, the more numerous difficult realization automation of operation | Simple in structure, easy to operate, realize automation easily. |
| 7 | After dusting, Yu Fenliang≤10% | After dusting, Yu Fenliang≤1.76% |
| 8 | The large-tonnage dry powder fire-engine by adding gas cylinder quantity, or improves storage pressure and capacity, has any problem in the design. | Because the gas generator volume is little, in light weight, the design of large-tonnage dry powder fire-engine realizes easily. |
| 9 | Can not under the wildfire situation, realize fight continuously.Not inflation again, the possibility of putting out a fire continuously. | In the scene of a fire, can load onto gunpowder and dry powder again in half an hour, put out a fire continuously. |
Claims (6)
1, the method for combined type powder gas generator emission fire-fighting powder, it is characterized in that: several gas generators are one by one by the instruction burning under the manipulation of control device, realize that first, second gas generator of the continuous air feed of pulsed is successively during preface continuity point fire burns, just to the dry powder can inflation, make a jar internal pressure reach rated value 10-12 kilogram/centimetre
2, can open switch valve this moment, sprays dry powder and put out a fire.When its force value drops to 8 kilograms/centimeter
2When following, the three, the fourth class gas generator is by instruction tonifying Qi in dry powder can successively.Continue the spray powder fire extinguishing.
2, the device of combined type powder gas generator emission fire-fighting powder, it is characterized in that by several gas generators that combine, filter, dry powder can, powder fire monitor, formations such as the high temperature resistant one-way cock of anti-ablation the, discharge, check valve, gas nozzle and Iganition control system.
3,, it is characterized in that the housing of gas generator adopts the common seamless steel pipe hot pressing closing in of heavy wall to be shaped, and inwall scribbles the heat insulating coat of 2300 ℃ of heatproofs according to the described device of claim 2.
4,, it is characterized in that high temperature resistant anti-combustion erosion one-way cock adopts 30 kilograms/centimeter of resistance to compressions according to the described device of claim 2
2, the anti-ablator that heatproof is 2300 ℃.
5,, it is characterized in that discharge adopts the common low carbon steel seamless steel tube, fin is housed outward according to the described device of claim 2.
6, according to the described device of claim 2, it is characterized in that having an electric control system, utilize the transistor delay circuit, Comprehensive Control is carried out in electric contact pressure gauge or manual control, the instruction of sending igniting or stopping lighting a fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100186A CN85100186B (en) | 1985-05-04 | 1985-05-04 | The method and apparatus of combined type powder gas generator emission fire-fighting powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85100186A CN85100186B (en) | 1985-05-04 | 1985-05-04 | The method and apparatus of combined type powder gas generator emission fire-fighting powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85100186B true CN85100186B (en) | 1985-09-10 |
| CN85100186A CN85100186A (en) | 1985-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85100186A Expired CN85100186B (en) | 1985-05-04 | 1985-05-04 | The method and apparatus of combined type powder gas generator emission fire-fighting powder |
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| CN (1) | CN85100186B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537035A (en) * | 2013-02-28 | 2014-01-29 | 姚玉德 | Dry powder extinguishment system |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100360198C (en) * | 2002-07-05 | 2008-01-09 | 北京世纪联保消防新技术有限公司 | Automatic fire extinguisher of puluse ultrafine dry powder |
| CN106178333A (en) * | 2016-08-24 | 2016-12-07 | 西安新竹防灾救生设备有限公司 | Electric locomotive staged is detonated powder extinguishing system |
| CN106178344A (en) * | 2016-08-24 | 2016-12-07 | 西安新竹防灾救生设备有限公司 | Staged aerogenesis dry powder extinguishing installation |
| CN109316686A (en) * | 2018-11-06 | 2019-02-12 | 于明思 | A kind of electricity-explosive type two-phase flow bus main cabin fire-sprinkling system |
-
1985
- 1985-05-04 CN CN85100186A patent/CN85100186B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537035A (en) * | 2013-02-28 | 2014-01-29 | 姚玉德 | Dry powder extinguishment system |
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| Publication number | Publication date |
|---|---|
| CN85100186A (en) | 1985-09-10 |
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| CI01 | Correction of invention patent gazette |
Correction item: Inventor Correct: . .. Xu Jianting False: . .. Xu Jianting Page: 9 |
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Free format text: CORRECT FROM: (INVENTOR) XU JIANTING TO: XU JIANTING |