CN103195462B - Liquid addition and atomization device for mine nitrogen-filling process - Google Patents
Liquid addition and atomization device for mine nitrogen-filling process Download PDFInfo
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- CN103195462B CN103195462B CN201310131138.0A CN201310131138A CN103195462B CN 103195462 B CN103195462 B CN 103195462B CN 201310131138 A CN201310131138 A CN 201310131138A CN 103195462 B CN103195462 B CN 103195462B
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Abstract
The invention discloses a liquid addition and atomization device for a mine nitrogen-filling process. A flow-guide atomization device is arranged at the front end of a barrel body of the liquid addition and atomization device. A reducing gas-guide channel is reserved in the interior of the flow-guide atomization device. A bypass channel is arranged between the exterior of the flow-guide atomization device and the barrel body. A flow inlet channel is arranged on a lateral side of the flow-guide atomization device, and is communicated with a liquid-guide groove. A Venturi mixer is arranged at the rear end of the barrel body; and an injection orifice of the flow-guide atomization device is opposite to a mixture channel of the Venturi mixer. The liquid addition and atomization device is simple in structure, large in atomization amount, small in occupied space, flexible in movement, convenient to assemble, capable of effectively preventing blocking and working continuously, suitable for viscous liquid, free of electric elements, safe, reliable, and wide in practicability, is applicable to fire preventing and suppression in gob area of a mine or a closed space, and especially is applicable to adding fire-proof inhibitor solution in a mine nitrogen-filling process for fire preventing and suppression.
Description
Technical field
The present invention relates to the device for liquid interpolation and atomization in the anti-fire extinguishing procedure of a kind of coal mine bet nitrogen.
Background technology
Mine fire causes very large threat to Safety of Coal Mine Production.For administering mine fire, extensively adopt nitrogen preventing and extinguishing fire technology both at home and abroad, the inerting smothering action of nitrogen with excellent is suppressing to have obtained a lot of successful example aspect spontaneous combustionof coal and fire hazard treating.But nitrogen injection is Shortcomings part also, first nitrogen cooling-down effect is poor, easily resume combustion, and it two is that nitrogen easily runs off, and stops nitrogen rear defence fire extinguishing function and disappears.In note nitrogen process, make the additive such as water, resistanceization liquid, can obtain the more preferably anti-fire extinguishing effect such as cooling and resistanceization.ZL201010243627.1 discloses a kind of mine nitrogen water mist generating device, by the setting of water guide cyclone and atomizer, can be used for noting and in nitrogen process, add thin water smoke, but the pressure of the required nitrogen G&W of this device is larger, be difficult to adapt to the anti-fire extinguishing needs of large atomization quantity, due to the complexity of mining water quality, need regular screen pack is cleaned simultaneously, and once impurity is by screen pack, small-bore hole for water spraying the coking and blocking easily causing in device fluid passage is set.And along with the more and more attention of people to mine safety, the thin water smoke that only adds water generates in note nitrogen process has been not enough to meet anti-fire extinguishing demand, fire prevention is the trend of administering mine fire with the interpolation of the viscous liquids such as the retardant aqueous solution.Existing atomising device is difficult to meet interpolation and the atomization of liquid in the note nitrogen process of colliery.
Summary of the invention
Be difficult to meet the interpolation of liquid and the defect of atomization in the note nitrogen process of colliery in order to overcome existing atomising device, the invention provides liquid in a kind of mine note nitrogen process and add and atomising device, this device can be realized liquid interpolation and atomization expeditiously in the note nitrogen process of colliery.
Technical scheme of the present invention is: the barrel front end of this device is provided with water conservancy diversion atomizer, water conservancy diversion atomizer inside is provided with the air guide channel of convergent, between water conservancy diversion atomizer outside and cylindrical shell, be provided with by-pass, water conservancy diversion atomizer side is provided with feed pathway, and feed pathway is communicated with intake chute; Cylinder back-end is provided with venturi mixer, and the jet orifice of water conservancy diversion atomizer is the hybrid channel to venturi mixer just.
Described air guide channel is provided with 2 ~ 6 intake chutes, intake chute arrange in the shape of a spiral and each intake chute hand of spiral identical, intake chute is recessed in air guide channel inwall and section reduces from front to back gradually until disappear.
Advantage of the present invention and beneficial effect: utilize the existing nitrogen injection system of mine, by convergent air guide channel, a part of nitrogen is become to high velocity air, by section the arranging of screw type intake chute that diminish gradually, liquid is guided to air guide channel, the atomization of liquid that high velocity air enters intake chute inside spin overflow gradually, form bubble-liquid two-phase jet and enter venturi mixer, another part nitrogen in while by-pass is noted nitrogen pressure and Venturi effect enters blender, and jet forms stable atomization nitrogen stream under the synergistic effect of venturi mixer.
The section of intake chute reduces gradually, even if larger impurity enters, can enter air guide channel from intake chute side, once avoid using frequent cleaning and the screen pack inefficacy that screen pack causes to cause impurity coking and blocking in passage; Effectively reduced the excessive problem of viscous liquid resistance that existing small-bore hole for water spraying causes simultaneously.
Be applicable to the anti-fire extinguishing of coal mine gob or enclosure space, be particularly useful for adding the fire prevention retardant aqueous solution in the anti-fire extinguishing procedure of coal mine bet nitrogen.Simple in structure, atomization quantity is large, takes up space little, can move flexibly, easy for installation, and can effectively prevent from stopping up, and is applicable to viscous liquid, energy continuous operation, and containing electric elements, safe and reliable, there is practicality widely.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of one embodiment of the present of invention.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
In figure: 1. cylindrical shell, 2. water conservancy diversion atomizer, 3. venturi mixer, 4. air guide channel, 5. by-pass, 6. feed pathway, 7. intake chute, 8. jet orifice, 9. hybrid channel.
Detailed description of the invention
In Fig. 1, cylindrical shell 1 front end is provided with water conservancy diversion atomizer 2, and water conservancy diversion atomizer 2 inside are provided with the air guide channel 4 of convergent, between water conservancy diversion atomizer 2 outsides and cylindrical shell 1, is provided with by-pass 5, and water conservancy diversion atomizer 2 sides are provided with feed pathway 6, and feed pathway 6 is communicated with intake chute 7; Cylindrical shell 1 rear end is provided with venturi mixer 3, and the jet orifice 8 of water conservancy diversion atomizer 2 is the hybrid channel 9 to venturi mixer 3 just.
Air guide channel 4 is provided with 2 ~ 6 intake chutes 7, intake chute 7 arrange in the shape of a spiral and each intake chute 7 hands of spiral identical, intake chute 7 is recessed in air guide channel 4 inwalls and section reduces from front to back gradually until disappear.
The course of work: cylindrical shell 1 gas access is connected with nitrogen pipeline under mine, and outlet is connected with note nitrogen pipe, and feed pathway 6 is connected with feed liquid pipeline.When nitrogen enters after cylindrical shell 1, a part becomes ram compression at the interior static pressure of convergent air guide channel 4 and forms high velocity air, liquid enters intake chute 7 by feed pathway 6, the same-handed direction of intake chute 7 arranges to ensure that intake chute 7 does not intersect, liquid is spilled over to gradually air guide channel 4 in intake chute 7 inside spin flow process due to reducing gradually of section, the liquid flow direction overflowing and high velocity air direction oblique, utilize gas kinetic energy to make liquid produce that tear side, the broken drop that forms, form bubble-liquid two-phase jet and enter venturi mixer 3; Now, another part nitrogen in by-pass is noted nitrogen pressure and Venturi effect enters hybrid channel 9, in jet tentatively the liquid of atomization interiorly further shake at venturi mixer 3, disorder, finally form stable vaporific nitrogen stream.
In the time that liquid contains impurity and enters fluid passage 6, because the section of intake chute 7 reduces gradually, impurity can enter air guide channel 4 from intake chute 7 sides, spray with jet, once and avoid general type atomising device to use the frequent cleaning that screen pack causes to lose efficacy and cause the problem of impurity coking and blocking in passage with screen pack.
Claims (1)
1. in a mine note nitrogen process, liquid adds and atomising device, this device mainly comprises cylindrical shell (1), water conservancy diversion atomizer (2), venturi mixer (3), it is characterized in that: cylindrical shell (1) front end is provided with water conservancy diversion atomizer (2), water conservancy diversion atomizer (2) inside is provided with the air guide channel (4) of convergent, between water conservancy diversion atomizer (2) outside and cylindrical shell (1), be provided with by-pass (5), water conservancy diversion atomizer (2) side is provided with feed pathway (6), and feed pathway (6) connects intake chute (7); Cylindrical shell (1) rear end is provided with venturi mixer (3), the just hybrid channel to venturi mixer (3) (9) of the jet orifice (8) of water conservancy diversion atomizer (2), air guide channel (4) is provided with 2 ~ 6 intake chutes (7), intake chute (7) arrange in the shape of a spiral and each intake chute (7) hand of spiral identical, intake chute (7) is recessed in air guide channel (4) inwall and section reduces from front to back gradually until disappear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131138.0A CN103195462B (en) | 2013-04-16 | 2013-04-16 | Liquid addition and atomization device for mine nitrogen-filling process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131138.0A CN103195462B (en) | 2013-04-16 | 2013-04-16 | Liquid addition and atomization device for mine nitrogen-filling process |
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| CN103195462A CN103195462A (en) | 2013-07-10 |
| CN103195462B true CN103195462B (en) | 2014-11-19 |
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| CN201310131138.0A Active CN103195462B (en) | 2013-04-16 | 2013-04-16 | Liquid addition and atomization device for mine nitrogen-filling process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761887A (en) * | 2016-11-18 | 2017-05-31 | 济宁学院 | A kind of coal mine gob extinguishing device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715292B (en) * | 2016-01-27 | 2018-09-18 | 中国矿业大学 | A kind of multistage atomizing type two-phase flow water mist generating device of prevention underground coal fire |
| CN107013242B (en) * | 2017-05-23 | 2019-03-05 | 辽宁工程技术大学 | A kind of mining multistage atomizing two-phase flow water mists generating device |
| CN113048064B (en) * | 2021-04-02 | 2023-01-06 | 中国石油天然气集团有限公司 | Production increasing device and method for heavy oil well |
| CN114856678B (en) * | 2022-05-16 | 2022-11-22 | 中国矿业大学(北京) | Distributed type dragging pipe continuous nitrogen injection fire prevention and extinguishing method and system for goaf under coal mining condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2575678B1 (en) * | 1985-01-04 | 1988-06-03 | Saint Gobain Vitrage | PNEUMATIC POWDER EJECTOR |
| DE3708462A1 (en) * | 1987-03-16 | 1988-09-29 | Gema Ransburg Ag | PNEUMATIC CONVEYOR |
| CN2666564Y (en) * | 2003-12-26 | 2004-12-29 | 杨吉波 | Sprayer |
| CN100352556C (en) * | 2004-12-22 | 2007-12-05 | 茂名学院 | Self-sucking type nozzle in two phases of gas-fluid with structure of convex circular ring |
| CN2877882Y (en) * | 2006-01-26 | 2007-03-14 | 上海交通大学 | Eddy flow steam-liquid atomization injector |
| CN101628208B (en) * | 2009-08-27 | 2011-12-14 | 董晟荣 | Air-water mixer and air-water mixing tank for preparing ozone water |
| CN201510957U (en) * | 2009-11-13 | 2010-06-23 | 大庆海洋石油技术开发有限公司 | Adjustable steam fluidic device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761887A (en) * | 2016-11-18 | 2017-05-31 | 济宁学院 | A kind of coal mine gob extinguishing device |
| CN106761887B (en) * | 2016-11-18 | 2018-11-16 | 济宁学院 | A kind of coal mine gob extinguishing device |
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| CN103195462A (en) | 2013-07-10 |
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