CN1868601A - Ultrafine spray jet spray gun - Google Patents
Ultrafine spray jet spray gun Download PDFInfo
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- CN1868601A CN1868601A CN 200510071156 CN200510071156A CN1868601A CN 1868601 A CN1868601 A CN 1868601A CN 200510071156 CN200510071156 CN 200510071156 CN 200510071156 A CN200510071156 A CN 200510071156A CN 1868601 A CN1868601 A CN 1868601A
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Abstract
A high-speed jet spray gun able to spray superfine atomized water for extinguishing fire accident is composed of convergent-divergent channel, mixing nozzle, compressed air tube and its jointer, water supplying tube and its jointer, cyclone unit, main body with air and water valves, and valve buttons.
Description
One, technical field
The present invention relates to a kind of water fog spraying gun, especially relate to a kind of superfine spray high-speed jet spray gun.
Two, background technology
At the aircraft of ground maintenance, test run, and during breaking out of fire such as tank, naval vessels, mostly with the method fire extinguishing of spraying dry powder, fire foam.Chemical pollutants such as the foam that this class extinguishing chemical uses the back to adhere on parts and equipment toast in a large number, dry powder, very difficult removing.Both made equipment not be subjected to ablating and damaged, and also must return factory's overhaul, and made it can't recover for a long time to use, and cause heavy economic losses for removing chemical pollutant.Do not produce 1211 halon extinguishing agents of chemical contamination, because of it has destruction to ozone layer, according to international Montreal Protocol, China stopped in 2005 producing.
For overcoming the shortcoming of chemical, seek other fire-fighting techniques that replace halon extinguishing agent, developing the various types of water mist fire extinguishers that are suitable for motor-driven use both at home and abroad.It is the Backpack type pulse water spray extinguisher of power with compressed air that Swede's Fei Langci Manfred Stohl has been invented, produce by German IFEX company, approved product is " an IFEX3000 type pulsed spray fire extinguisher ", form by high-pressure gas cylinder, water storage bottle, the pulsed injector that has water storage room and a gas dome, the explosive force that produces when the compressed air of 2.5Mpa discharges in the dependence gas dome, about 1L water-jet in the water storage room is gone out, reach gas-water smoke two-phase pulse jet of 120m/s in jet place generation speed.This jet has very big impact energy, make effective jet length of fine mist fire-fighting reach 4～6m, it is remarkable to be used to put out the tunnel fire hazard effect, be subjected to the attention of CTIF (CTIF), held international fire-fighting crime scene discussion meeting at stockholm, capital of sweden 5 to 7 March in 2000.China has like product production, and beginning is promoted the use of in fire brigade.China's 02142331.8 patent of invention and 01250488.2 utility model patent have also been narrated a kind of air-water dual-phase jet low pressure water mist fire extinguisher.
But the pulsed water spray projector exists following shortcoming: 1, gas-water smoke two-phase medium pulsing jet impulsive force is big, easily causes the glassware that is hit, the liquid splash that instrument and equipment damages and burns; 2, the angle of flare of gas-water smoke pulsing jet big (reaching 36 °), the jet flow strength retrogression who increases water smoke with the jet jet length is very fast, therefore, has only closely fire extinguishing just effective; 3, except that compressed gas cylinder and pressure water pot as source of the gas, the water source, also need in the tubular injection apparatus, establish gas dome and water storage room, make hand-held injection apparatus weight big, inconvenience is carried and is operated; 4, promptly need after once spraying by the pressure water pot to water storage room's water filling, just can spray after filling with water next time, water filling needs the time, thereby influences its fire-fighting efficiency.Above-mentioned shortcoming makes the scope of application of pulsed spray gun be restricted.
02142331.8 patent of invention and 01250488.2 utility model patent, and in the patent and document of the thin water smoke device of other description generation air-water dual-phase jet that retrieves, all do not find to adopt the convergent-divergent channel technology, the method of utilizing Compressed Gas to produce supersonic jet in release of pressure expands generates the superfine spray dual-phase jet of high velocity jet, also do not adopt mixed flow jet pipe technology, thereby the drop particle diameter of the thin jet spray of being produced is big, jet length is near.
Three, summary of the invention
The objective of the invention is provides a kind of spray gun that produces the superfine spray high-speed jet at the defective that the said goods exists, and the extinguishing property of thin water smoke is not fully exerted.
The objective of the invention is by providing spray gun to realize with following structure, this spray gun is by convergent-divergent channel, gun barrel, mixed flow jet pipe, compressed air piping joint, and the body of a gun, valve switch button that water supply line, water supply line joint, cyclone, inside are equipped with water-gas two-way valve door switch are formed, described convergent-divergent channel is installed in the gun barrel, its downstream is equipped with the mixed flow jet pipe, the upstream successively with the gas circuit valve door switch, the Compressed Gas pipeline joint UNICOM that are installed in the body of a gun, form the gas jet passage jointly; Described cyclone is installed between gun barrel and the mixed flow jet pipe, its downstream and mixed flow jet pipe UNICOM, the upstream successively with water supply line, the body of a gun in water route valve switch, the water supply pipe joint UNICOM of installing, form the fluidic channel of water jointly; Described inside is equipped with the body of a gun of two groups of pipe valve switches, and the left side connects Compressed Gas pipe joint, supply channel joint respectively; The right side is connected with water supply line, convergent-divergent channel, gun barrel and mixed flow jet pipe, and valve switch Jie New-York is installed on pikestaff, forms the integral body of spray gun; Described cyclone is processed with skewed slot on its inner ring ringwise, becomes the eddy flow passage of water.
The present invention compares with " pulsed spray fire extinguisher " has following advantage: superfine spray spray gun of the present invention has been cancelled gas dome and the water storage room on the rifle body, its rifle body weight have only " pulsed spray fire extinguisher " 1/4, length is 1/3 of pulsed spray fire extinguisher, the fire extinguishing operation of being more convenient for; But superfine spray spray gun continuous injection has shortened rapid-action time; At the compressed air pressure of input when being all 2.5Mpa, the flow velocity of the gas that the superfine spray lance ejection goes out-thin jet spray is greater than 360m/s, is 3 times of jet velocity of pulsed spray gun; The superfine spray spray gun is compared with the thin water spray projector of existing dual-phase jet, and the diffusion angle of the superfine spray jet that the former penetrates is little, and the diameter of water droplet is thin, but the firing rate of water droplet is fast, and it is stronger to make water droplet penetrate the ability of flame.
Four, the specific embodiment
With reference to the accompanying drawings the specific embodiment of the present invention is described in further detail.
Fig. 1 is the lance body structure profile of superfine spray spray gun of the present invention.
Fig. 2 is the structure and the partial sectional view of the cyclone shown in Fig. 1.
Superfine spray spray gun shown in Figure 1 by Lavalle pipe 2, gun barrel 4, cyclone 3, mixed flow jet pipe 1, Compressed Gas pipeline joint 8, water supply pipe joint 7, water supply pipeline 5, inside are equipped with the two-way valve and open The body of a gun 6 that closes, valve switch button 9 form. Compressed Gas enters inside from compressing gas pipe joint 8 The body of a gun 6 of gas circuit valve door switch is installed, flows in the Lavalle pipe 2 be installed in the gun barrel 4, drawing watt Swollen account is accelerated to become supersonic jet in your pipe, and supersonic jet enters in the mixed flow jet pipe 1; Pressure flow Confession waterpipe joint 7 enters the body of a gun 6 that the Water path valve switch is installed, through water supply pipeline 5 and cyclone 3 generate the rotating jet of water, and the jet of water enters in the mixed flow jet pipe 1; Gas, water two-way jet spray in mixed flow Bump, mixing are then penetrated at a high speed in the pipe 1. Install at the body of a gun 6 that the two-way valve door switch is installed There is valve switch to connect button 9, is used for the keying of control aqueous vapor two-way valve door switch.
Can find out that from the structure chart of cyclone shown in Figure 2 the inner ring of cyclone 3 is by equidistant oblique Groove 10 forms, and the direction of skewed slot becomes 20 °～30 ° angles with the axis of cyclone, is used for making penetrating of water Rotation is given birth in miscarriage, and the cyclone of changing the skewed slot that different in width is arranged can change discharge. Cyclone is by metal Material or highstrenghtpiston make.
Be used to produce the device that supersonic speed gas jetting increases motor power thereby convergent-divergent channel is a kind of spout place that is installed in jet engine and rocket engine, be used to make Compressed Gas to produce supersonic speed gas jetting in the present invention.When the pressure of the Compressed Gas that enters convergent-divergent channel during greater than 1.528 times of ambient pressures, the flow velocity of gas in the convergent-divergent channel converging portion such as can reach at velocity of sound (340m/s), can continue to expand during through the diffuser of convergent-divergent channel in the velocity of sound air-flow reduces pressure and flow velocity continues to increase, and produces supersonic jet; Supersonic jet enters in the mixed flow jet pipe, produce effect of impact with the water jet of injecting in the mixed flow jet pipe through cyclone from supply channel, make water jet be clashed into, cut into the ultra-fine water droplet jet of 5～100 μ m diameters, make water droplet and gas fully mixed, water droplet obtains kinetic energy and increases flow velocity, forms the high-speed jet of air-water two-phase and penetrates from the mixed flow jet pipe.It is to make supersonic speed gas jetting fully collide, cut water jet that the mixed flow jet pipe is set, and makes water droplet obtain the abundant speedup of kinetic energy.The length of mixed flow jet pipe is 5～8 times of its diameter value in the present invention.
In superfine spray spray gun of the present invention, the pressure of the gas of input Compressed Gas pipe joint 8 is 0.4～2.5Mpa, is 4～25 times of external atmosphere pressure value; The Compressed Gas of input can be a compressed air, also can be nitrogen, carbon dioxide or mist; Can after the pressure reducer decompression, provide by gas cylinder, also can provide by air compressor, pressure gas pipeline.The pressure of the water of input water supply line joint 7 is 0.1～0.8Mpa, can be supplied water by backpack or fixed pressurized water container, also can be supplied water by pressure water pipe.The pressure of the gas of input Compressed Gas pipe joint 8 can be more than or equal to the pressure of the water of importing water supply line joint 7.
The beneficial effect that the present invention produces is: when the pressure of the Compressed Gas of importing is 0.6～2.5Mpa, the firing rate of the gas-superfine spray jet that obtains in superfine spray spray gun exit reaches 100～400m/s, the angle of flare of jet is less than 12 °, the jet jet length reaches 10～16m, the particle diameter of water smoke is 5～100 μ m in the jet, do not produce water damage during the fire extinguishing of superfine spray jet, free from environmental pollution, fabulous electrical insulation capability is arranged, use cost is low, the high speed water mist jet is not fully exerted the extinguishing property of superfine spray, especially is suitable for putting out the limited aircraft in inner space, tank, vehicle, the fire of naval vessel and submarine inside.
Superfine spray jet ejecting gun of the present invention can manufacture the different model of different flows, make it to be applicable to portable, fixed and vehicular superfine spray jet fire extinguisher, except that the fire attack that is used for military hardware, also be suitable between warehouse, electrical installation, the fire attack of gas station, market, workshop etc., the scope of application is wide.
Claims (4)
1. ultrafine spray jet spray gun, this spray gun is by convergent-divergent channel, gun barrel, mixed flow jet pipe, compressed air piping joint, and the body of a gun, valve switch button that water supply line, water supply line joint, cyclone, inside are equipped with water-gas two-way valve door switch are formed, described convergent-divergent channel is installed in the gun barrel, in its downstream the mixed flow jet pipe is installed, the upstream successively be installed in the body of a gun in gas circuit valve door switch, Compressed Gas pipeline joint connect, form the gas jet passage jointly; Described cyclone is installed between mixed flow jet pipe and the gun barrel, downstream and mixed flow jet pipe UNICOM, the upstream successively with water supply line, the water route valve switch in the body of a gun, the water supply pipe joint UNICOM of installing, form the fluidic channel of water jointly; Described inside is equipped with the body of a gun of two groups of pipe valve switches, the left side connects Compressed Gas pipe joint, supply channel joint respectively, the right side connects water supply line, convergent-divergent channel, gun barrel and mixed flow jet pipe, and valve switch Jie New-York is installed on pikestaff, forms the integral body of spray gun; Described cyclone is processed with skewed slot on its inner ring ringwise, constitutes the eddy flow passage of water.
2. ultrafine spray jet spray gun as claimed in claim 1 is characterized in that: the mixed flow jet pipe is installed on after convergent-divergent channel and the cyclone, constitutes the passage that gas jet and water jet mix, and the length of mixed flow jet pipe is 5～8 times of its diameter.
3. ultrafine spray jet spray gun as claimed in claim 1 is characterized in that: skewed slot on the cyclone inner ring and cyclone axis form 20 °～30 ° angle, and cyclone is made by metal material or macromolecule polymer material.
4. ultrafine spray jet spray gun as claimed in claim 1, it is characterized in that: the pressure of the gas of input Compressed Gas pipeline joint can be unequal with the pressure of the water of input water supply line joint, the pressure of wherein importing the gas of Compressed Gas pipeline joint is 0.4～2.5MPa, and Compressed Gas can be air, nitrogen, carbon dioxide or mist; The pressure of the water of input water supply line joint is 0.1～0.8Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510071156 CN1868601A (en) | 2005-05-23 | 2005-05-23 | Ultrafine spray jet spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510071156 CN1868601A (en) | 2005-05-23 | 2005-05-23 | Ultrafine spray jet spray gun |
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| Publication Number | Publication Date |
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| CN1868601A true CN1868601A (en) | 2006-11-29 |
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| CN 200510071156 Pending CN1868601A (en) | 2005-05-23 | 2005-05-23 | Ultrafine spray jet spray gun |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920231B (en) * | 2009-11-19 | 2012-02-29 | 王鹏 | Portable micro-water energy-saving high-pressure cleaning gun |
| CN101945608B (en) * | 2008-02-21 | 2013-04-03 | 荷兰联合利华有限公司 | A process and a device to clean substrates |
| CN103949026A (en) * | 2014-03-28 | 2014-07-30 | 北京喜安妮科技发展有限公司 | Water mist fire extinguishing system |
| CN104399618A (en) * | 2014-12-16 | 2015-03-11 | 苟仲武 | Method and device for reducing high pressure fluid injection impact force |
| CN104520012A (en) * | 2012-08-15 | 2015-04-15 | Sms康卡斯特股份公司 | Spray nozzle device, in particular for spraying a cast strand |
| CN105230597A (en) * | 2015-11-03 | 2016-01-13 | 吉首大学 | Water-swirl gas direct injection type pesticide spraying device |
| CN105234116A (en) * | 2015-11-03 | 2016-01-13 | 吉首大学 | Cyclone water direct injection type washing device |
| CN105251629A (en) * | 2015-11-03 | 2016-01-20 | 吉首大学 | Water rotating gas direct spraying type pole plate spraying washing device |
| CN105284765A (en) * | 2015-11-03 | 2016-02-03 | 吉首大学 | Air-water full-rotation type foliage spray device |
| CN106669061A (en) * | 2015-11-09 | 2017-05-17 | 中国人民解放军军械工程学院 | Telescopic fire gun |
| CN106730542A (en) * | 2017-03-09 | 2017-05-31 | 王欣 | One kind can be pressurized fire-fighting lance |
| CN107754148A (en) * | 2017-12-08 | 2018-03-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Supersonic jet fire extinguishing component and fire extinguisher |
| CN112474094A (en) * | 2020-11-23 | 2021-03-12 | 中国科学技术大学 | Remote jetting method and device for supersonic airflow and rotational flow negative pressure coupling |
| RU2776283C2 (en) * | 2020-11-09 | 2022-07-18 | Владимир Дмитриевич Захматов | Pulse sprayer made of standard combat and dummy weapon with super-caliber nozzle on barrel of weapon for charging and spraying with shot of extinguishing agents and natural agents - water, sand, soil, dust - when extinguishing wildfires |
-
2005
- 2005-05-23 CN CN 200510071156 patent/CN1868601A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101945608B (en) * | 2008-02-21 | 2013-04-03 | 荷兰联合利华有限公司 | A process and a device to clean substrates |
| CN101920231B (en) * | 2009-11-19 | 2012-02-29 | 王鹏 | Portable micro-water energy-saving high-pressure cleaning gun |
| CN104520012A (en) * | 2012-08-15 | 2015-04-15 | Sms康卡斯特股份公司 | Spray nozzle device, in particular for spraying a cast strand |
| CN103949026A (en) * | 2014-03-28 | 2014-07-30 | 北京喜安妮科技发展有限公司 | Water mist fire extinguishing system |
| CN104399618A (en) * | 2014-12-16 | 2015-03-11 | 苟仲武 | Method and device for reducing high pressure fluid injection impact force |
| CN105234116A (en) * | 2015-11-03 | 2016-01-13 | 吉首大学 | Cyclone water direct injection type washing device |
| CN105230597A (en) * | 2015-11-03 | 2016-01-13 | 吉首大学 | Water-swirl gas direct injection type pesticide spraying device |
| CN105251629A (en) * | 2015-11-03 | 2016-01-20 | 吉首大学 | Water rotating gas direct spraying type pole plate spraying washing device |
| CN105284765A (en) * | 2015-11-03 | 2016-02-03 | 吉首大学 | Air-water full-rotation type foliage spray device |
| CN106669061A (en) * | 2015-11-09 | 2017-05-17 | 中国人民解放军军械工程学院 | Telescopic fire gun |
| CN106730542A (en) * | 2017-03-09 | 2017-05-31 | 王欣 | One kind can be pressurized fire-fighting lance |
| CN107754148A (en) * | 2017-12-08 | 2018-03-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Supersonic jet fire extinguishing component and fire extinguisher |
| RU2776283C2 (en) * | 2020-11-09 | 2022-07-18 | Владимир Дмитриевич Захматов | Pulse sprayer made of standard combat and dummy weapon with super-caliber nozzle on barrel of weapon for charging and spraying with shot of extinguishing agents and natural agents - water, sand, soil, dust - when extinguishing wildfires |
| CN112474094A (en) * | 2020-11-23 | 2021-03-12 | 中国科学技术大学 | Remote jetting method and device for supersonic airflow and rotational flow negative pressure coupling |
| CN112474094B (en) * | 2020-11-23 | 2022-07-15 | 中国科学技术大学 | Remote jetting method and device for supersonic airflow and rotational flow negative pressure coupling |
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