CN103195462A - 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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- CN103195462A CN103195462A CN2013101311380A CN201310131138A CN103195462A CN 103195462 A CN103195462 A CN 103195462A CN 2013101311380 A CN2013101311380 A CN 2013101311380A CN 201310131138 A CN201310131138 A CN 201310131138A CN 103195462 A CN103195462 A CN 103195462A
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- atomization device
- atomizer
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- conservancy diversion
- nitrogen
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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 a kind of coal mine makes a bet and is used for that liquid adds and the device of atomizing in the anti-fire extinguishing procedure of nitrogen.
Background technology
Mine fire causes very big threat to the colliery safety in production.For administering mine fire, extensively adopt the 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 the fire hazard treating.But also there is weak point in nitrogen injection, and 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 effect and disappears.In annotating the nitrogen process, make additives such as water, resistanceization liquid, can obtain more preferably anti-fire extinguishing effect such as cooling and resistanceization.ZL201010243627.1 discloses a kind of mine nitrogen water mist generating device, setting by water guide cyclone and atomizer, can be used for annotating and add thin water smoke in the nitrogen process, but the pressure of the required nitrogen G﹠W of this device is bigger, be difficult to adapt to the anti-fire extinguishing needs of big atomization quantity, simultaneously because the complexity of mining water quality needs regular screen pack is cleaned, in case and impurity is by screen pack, small-bore hole for water spraying the coking and blocking that easily causes in the 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 annotating the nitrogen process has been not enough to satisfy anti-fire extinguishing demand, and fire prevention is the trend of administering mine fire with the interpolation of viscous liquids such as the retardant aqueous solution.Existing atomising device is difficult to satisfy interpolation and the atomizing that liquid in the nitrogen process is annotated in the colliery.
Summary of the invention
Be difficult to satisfy the interpolation of liquid in the notes nitrogen process of colliery and the defective of atomizing in order to overcome existing atomising device, the invention provides a kind of mine and annotate liquid interpolation and atomising device in the nitrogen process, this device can be realized liquid interpolation and atomizing expeditiously in the notes nitrogen process of colliery.
Technical scheme of the present invention is: the barrel front end of this device is provided with the water conservancy diversion atomizer, water conservancy diversion atomizer inside is provided with the air guide channel of convergent, be provided with the by-pass between water conservancy diversion atomizer outside and the cylindrical shell, 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 over against the hybrid channel of venturi mixer.
Described air guide channel is provided with 2 ~ 6 intake chutes, intake chute in the shape of a spiral shape arrange and each intake chute hand of spiral identical, intake chute is recessed in the air guide channel inwall and section reduces until disappearance from front to back gradually.
Advantage of the present invention and beneficial effect: utilize mine to have the nitrogen injection system now, by the convergent air guide channel a part of nitrogen is become 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 the intake chute inside spin and overflow gradually, form bubble-liquid two-phase jet and enter venturi mixer, another part nitrogen in the while by-pass is annotated nitrogen pressure and Venturi effect enters blender, and jet forms stable atomizing nitrogen stream under the synergistic effect of venturi mixer.
The section of intake chute reduces gradually, even big impurity enters, can enter air guide channel from the intake chute side, in case frequent cleaning and the screen pack inefficacy having avoided using screen pack to cause 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 coal mine and make a bet and add the fire prevention retardant aqueous solution in the anti-fire extinguishing procedure of nitrogen.Simple in structure, atomization quantity is big, and it is little to take up space, and can move flexibly, and is easy for installation, and can effectively prevent from stopping up, and is applicable to viscous liquid, the energy continuous operation, and do not contain electric elements, and safe and reliable, have practicality widely.
Description of 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.
Among the 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.
The specific embodiment
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, is provided with by-pass 5 between water conservancy diversion atomizer 2 outsides and the cylindrical shell 1, 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 over against the hybrid channel 9 of venturi mixer 3.
The course of work: cylindrical shell 1 gas access is linked to each other with nitrogen pipeline under the mine, and outlet links to each other with notes nitrogen pipe, and feed pathway 6 links to each other with feed liquid pipeline.After nitrogen enters cylindrical shell 1, part static pressure in convergent air guide channel 4 becomes ram compression and forms high velocity air, liquid enters intake chute 7 by feed pathway 6, the same-handed direction of intake chute 7 arranges to guarantee that intake chute 7 does not intersect, liquid is spilled over to air guide channel 4 gradually owing to reducing gradually of section in intake chute 7 inside spin flow process, the liquid flow direction that overflows and high velocity air direction oblique, utilize gas kinetic energy to make liquid produce that tear the side, the broken drop that forms, form bubble-liquid two-phase jet and enter venturi mixer 3; At this moment, another part nitrogen in the by-pass is annotated nitrogen pressure and Venturi effect enters hybrid channel 9, and the liquid that tentatively atomizes in the jet further shakes in venturi mixer 3, disorder, finally forms stable vaporific nitrogen stream.
When liquid contains impurity when entering 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, in case and avoided the general type atomising device to use frequent cleaning that screen pack causes and screen pack to lose efficacy causing the problem of impurity coking and blocking in passage.
Claims (2)
1. a mine is annotated liquid interpolation and atomising device in the nitrogen process, this device mainly comprises cylindrical shell, water conservancy diversion atomizer, venturi mixer, it is characterized in that: barrel front end is provided with the water conservancy diversion atomizer, water conservancy diversion atomizer inside is provided with the air guide channel of convergent, be provided with the by-pass between water conservancy diversion atomizer outside and the cylindrical shell, 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 over against the hybrid channel of venturi mixer.
2. mine according to claim 1 is annotated liquid interpolation and atomising device in the nitrogen process, it is characterized in that: air guide channel is provided with 2 ~ 6 intake chutes, intake chute in the shape of a spiral shape arrange and each intake chute hand of spiral identical, intake chute is recessed in the air guide channel inwall and section reduces until disappearance from front to back gradually.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
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| CN103195462A true CN103195462A (en) | 2013-07-10 |
| CN103195462B CN103195462B (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715292A (en) * | 2016-01-27 | 2016-06-29 | 中国矿业大学 | Multi-stage atomization type two-phase flow water mist generation device for controlling coal field fire |
| CN107013242A (en) * | 2017-05-23 | 2017-08-04 | 辽宁工程技术大学 | A kind of mining multistage atomizing two-phase flow water mists generating means |
| CN113048064A (en) * | 2021-04-02 | 2021-06-29 | 中国石油天然气集团有限公司 | Production increasing device and method for heavy oil well |
| CN114856678A (en) * | 2022-05-16 | 2022-08-05 | 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761887B (en) * | 2016-11-18 | 2018-11-16 | 济宁学院 | A kind of coal mine gob extinguishing device |
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| CN85109727A (en) * | 1985-01-04 | 1986-07-23 | 日本板硝子株式会社 | Spraying apparatus for discharge of powder by pressed air |
| EP0282873A2 (en) * | 1987-03-16 | 1988-09-21 | Ransburg-Gema AG | Pneumatic ejector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715292A (en) * | 2016-01-27 | 2016-06-29 | 中国矿业大学 | Multi-stage atomization type two-phase flow water mist generation device for controlling coal field fire |
| CN107013242A (en) * | 2017-05-23 | 2017-08-04 | 辽宁工程技术大学 | A kind of mining multistage atomizing two-phase flow water mists generating means |
| 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 |
| CN113048064A (en) * | 2021-04-02 | 2021-06-29 | 中国石油天然气集团有限公司 | Production increasing device and method for heavy oil well |
| CN114856678A (en) * | 2022-05-16 | 2022-08-05 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103195462B (en) | 2014-11-19 |
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