CN103670493A - Ground gas emptying system - Google Patents
Ground gas emptying system Download PDFInfo
- Publication number
- CN103670493A CN103670493A CN201310637476.1A CN201310637476A CN103670493A CN 103670493 A CN103670493 A CN 103670493A CN 201310637476 A CN201310637476 A CN 201310637476A CN 103670493 A CN103670493 A CN 103670493A
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- steel pipe
- explosion
- emptying system
- gas emptying
- ground gas
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Abstract
The invention discloses a ground gas emptying system which is connected with a downhole pump station gas drainage system through a vertical shaft pipeline. The vertical shaft pipeline is connected with an automatic powder-spraying and explosion-suppressing device, one ends of the automatic powder-spraying and explosion-suppressing device, an electric valve and an anti-backfire device are connected through a steel pipe, the other end of the anti-backfire device is connected with one end of a water seal anti-explosion device, the other end of the water seal anti-explosion device is connected with one end of a steel pipe provided with a positive-pressure water drainage device, the other end of the steel pipe provided with the positive-pressure water drainage device is connected with one end of a flame sensor through a steel pipe, and the other end of the flame sensor is connected with an emptying pipe. By the ground gas emptying system, downhole gas emission is eradicated, potential safety hazards are reduced, and a good environment is provided for gas control; safety cost is lowered, and capital pressure of coal mine enterprises can be relieved; timeliness of gas control is improved, and the problem of time 'blind area' is solved.
Description
Technical field
The present invention relates to a kind of drawing-off gas system, specifically, is a kind of ground gas emptying system.
Background technology
Colliery industry gas control prior art comprises two kinds at present:
The first technology is in down-hole, to build movable gas pump, the negative pressure producing by the pump housing and the negative pressure line of connection, by the gas drainage under suction in coal body, goaf out, by malleation pipeline, high concentration gas gas is being entered to total returning, this mode to safety in production, bring major hidden danger, always returning gas density will increase substantially, if safety management is not in place, very easily cause gas accident, both run counter to safety in production aim, bring negative effect also to society, family.
The second technology is on ground, to set up permanent gas drainage system, by ground aspiration pump negative pressure by down-hole high concentrations of gas extraction out, be discharged to ground, this scheme Ge great mineral bureau extensively promotes, but it is high that gas drainage system expense is set up on ground, expectation is that doubly left and right of drainage system expense 10-15 is built in down-hole, and it is long that permanent time extraction duration is set up on ground on the other hand, and gas control exists " blind area " in time.
Summary of the invention
The invention solves the deficiencies in the prior art, a kind of safe ground gas emptying system is provided.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of ground gas emptying system, described ground gas emptying system is connected by vertical pipeline with down-hole pumping plant gas drainage system, described ground gas emptying system comprises automatic powder spraying explosion-suppressing device, electrically operated valve, water seal explosion-proof apparatus, fireproof tempering device, positive-pressure water draining device, flame sensor, blow-down pipe, described vertical pipeline is connected with automatic powder spraying explosion-suppressing device, described automatic powder spraying explosion-suppressing device, electrically operated valve, fireproof tempering device connects by steel pipe between one end, the described fireproof tempering device other end is connected with water seal explosion-proof apparatus one end, the described water seal explosion-proof apparatus other end is connected with the one end that is provided with the steel pipe of positive-pressure water draining device, the described other end that is provided with the steel pipe of positive-pressure water draining device connects one end of flame sensor by steel pipe connecting, the other end of described flame sensor is connected with blow-down pipe.
Preferably, between described vertical pipeline and automatic powder spraying explosion-suppressing device, by tee junction, be connected, the described steel pipe that is provided with positive-pressure water draining device connects by tee junction with being connected between the steel pipe of flame sensor, the two ends that described tee junction is connected with pipeline are provided with flange, and remaining one end is connected with drain valve; Described water seal explosion-proof apparatus is monotubular, at described water seal explosion-proof apparatus two ends, is provided with quick coupling; Described blow-down pipe side is provided with blow-down pipe draw ring, and top is provided with rainhat, and described rainhat is fixed by rainhat lacing wire; The other maintenance cat ladder that is provided with of steel pipe of described connection flame sensor; Described steel pipe is spiral welded steel pipe; The other lightning tower that is provided with of described blow-down pipe.
The present invention stops fire damp discharge, reduces potential safety hazard, for gas control provides good environment; Reduce safety cost, can alleviate coal mining enterprise's financial pressure; Improved the ageing of gas control, settling time " blind area ".
Accompanying drawing explanation
Fig. 1 structural representation of the present invention
1, steel pipe 2, flange 3, tee junction 4, automatic powder spraying explosion-suppressing device 5, electrically operated valve 6, quick coupling 7, water seal antiriot device 8, fireproof tempering device 9, positive-pressure water draining device 10, flame sensor 11, rainhat lacing wire 12, rainhat 13, blow-down pipe 14, maintenance cat ladder 15, drain valve 16, lightning tower.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, a kind of ground gas emptying system, described ground gas emptying system is connected by vertical pipeline with down-hole pumping plant gas drainage system, described ground gas emptying system comprises automatic powder spraying explosion-suppressing device 4, electrically operated valve 5, water seal explosion-proof apparatus 7, fireproof tempering device 8, positive-pressure water draining device 9, flame sensor 10, blow-down pipe 13, described vertical pipeline is connected with automatic powder spraying explosion-suppressing device 4, described automatic powder spraying explosion-suppressing device 4, electrically operated valve 5, fireproof tempering device connects by steel pipe 1 between 8 one end, described fireproof tempering device 8 other ends are connected with water seal explosion-proof apparatus 7 one end, described water seal explosion-proof apparatus 7 other ends are connected with the one end that is provided with the steel pipe 1 of positive-pressure water draining device 9, the described other end that is provided with the steel pipe 1 of positive-pressure water draining device 9 connects one end of flame sensor 10 by steel pipe 1, the other end of described flame sensor 10 is connected with blow-down pipe 13.
Preferably, between described vertical pipeline and automatic powder spraying explosion-suppressing device 4, by tee junction 3, be connected, the described steel pipe 1 that is provided with positive-pressure water draining device 9 connects by tee junction 3 with being connected between the steel pipe 1 of flame sensor 10, the two ends that described tee junction 3 is connected with pipeline are provided with flange 2, and remaining one end is connected with drain valve 15; Described water seal explosion-proof apparatus 7 is monotubular, at described water seal explosion-proof apparatus 7 two ends, is provided with quick coupling 6; Described blow-down pipe 13 sides are provided with blow-down pipe draw ring, and top is provided with rainhat 12, and described rainhat 12 is fixing by rainhat lacing wire 11; The other maintenance cat ladder 14 that is provided with of steel pipe of described connection flame sensor 10; Described steel pipe 1 is spiral welded steel pipe; The other lightning tower 16 that is provided with of described blow-down pipe 13.
As shown in Figure 1, operating principle of the present invention is as follows:
The emptying know-why of ground gas is mainly divided into the upper and lower two parts of well.Down-hole is mainly to utilize underground moving gas drainage under suction impeller of pump high speed rotating to make working solution in pump form a rotation pendular ring along pump housing inwall.At this moment between two adjacent blades, impeller hub and pendular ring inner surface, form one by the airtight air cavity of working solution.Along with the rotation of impeller, the air-breathing district volume of this air cavity in pump progressively increases, and its internal pressure declines, thereby by gas suction pump; In exhaust area, air cavity volume progressively reduces, and its internal pressure rises, thereby by outside gas excavationg pump.
Pump housing negative pressure ventilation utilizes pipeline connection to enter coal body or extraction is carried out in goaf, and Exhaust Pressure is to utilize pumping plant to produce exhaust malleation on the one hand, to raise by pump housing high speed rotating gas temperature when gas in pipelines on the other hand, during higher than the outer temperature of pipeline, in pipeline, hot air density diminishes, and just along these pipelines, naturally rises to aboveground gas emptying system, the outer cold air of aboveground pipeline, because density is large, is infiltrated and is supplemented by low layer, and this just forms similar " stack effect ".By these two kinds of Exhaust Pressure actings in conjunction, high concentration gas is drained into ground.
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Claims (8)
1. a ground gas emptying system, described ground gas emptying system is connected by vertical pipeline with down-hole pumping plant gas drainage system, described ground gas emptying system comprises automatic powder spraying explosion-suppressing device, electrically operated valve, water seal explosion-proof apparatus, fireproof tempering device, positive-pressure water draining device, flame sensor, blow-down pipe, it is characterized in that: described vertical pipeline is connected with automatic powder spraying explosion-suppressing device, described automatic powder spraying explosion-suppressing device, electrically operated valve, fireproof tempering device connects by steel pipe between one end, the described fireproof tempering device other end is connected with water seal explosion-proof apparatus one end, the described water seal explosion-proof apparatus other end is connected with the one end that is provided with the steel pipe of positive-pressure water draining device, the described other end that is provided with the steel pipe of positive-pressure water draining device connects one end of flame sensor by steel pipe connecting, the other end of described flame sensor is connected with blow-down pipe.
2. ground gas emptying system according to claim 1, it is characterized in that: between described vertical pipeline and automatic powder spraying explosion-suppressing device, by tee junction, be connected, described in be provided with positive-pressure water draining device steel pipe by tee junction, connect with being connected between the steel pipe of flame sensor.
3. ground gas emptying system according to claim 2, is characterized in that: the two ends that described tee junction is connected with pipeline are provided with flange, and remaining one end is connected with drain valve.
4. ground gas emptying system according to claim 1, is characterized in that: described water seal explosion-proof apparatus is monotubular, at described water seal explosion-proof apparatus two ends, is provided with quick coupling.
5. ground gas emptying system according to claim 1, is characterized in that: described blow-down pipe side is provided with blow-down pipe draw ring, and top is provided with rainhat, and described rainhat is fixed by rainhat lacing wire.
6. ground gas emptying system according to claim 1, is characterized in that: the other maintenance cat ladder that is provided with of steel pipe of described connection flame sensor.
7. according to claim 1 or ground gas emptying system claimed in claim 5, it is characterized in that: described steel pipe is spiral welded steel pipe.
8. ground gas emptying system according to claim 1, is characterized in that: the other lightning tower that is provided with of described blow-down pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310637476.1A CN103670493A (en) | 2013-12-03 | 2013-12-03 | Ground gas emptying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310637476.1A CN103670493A (en) | 2013-12-03 | 2013-12-03 | Ground gas emptying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103670493A true CN103670493A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310637476.1A Pending CN103670493A (en) | 2013-12-03 | 2013-12-03 | Ground gas emptying system |
Country Status (1)
| Country | Link |
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| CN (1) | CN103670493A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158286A (en) * | 2007-11-15 | 2008-04-09 | 淮南矿业(集团)有限责任公司 | Coal mine light concentration mash gas safety conveying method and conveying system |
| CN201202974Y (en) * | 2008-05-28 | 2009-03-04 | 煤炭科学研究总院重庆研究院 | Low concentration mash gas safe conveying device |
| CN202810901U (en) * | 2012-08-06 | 2013-03-20 | 煤炭工业太原设计研究院 | Gas using and emptying device in gas drainage station |
| US20130089822A1 (en) * | 2011-04-28 | 2013-04-11 | KATALIZATOR Sp. z.o.o. | Method for utilization of low-concentration gas mixtures of combustible gas and air with stable heat energy recovery and flow reversal device for implementation of the method |
| CN203669917U (en) * | 2013-12-03 | 2014-06-25 | 神华神东保德煤矿 | Floor gas drainage system |
-
2013
- 2013-12-03 CN CN201310637476.1A patent/CN103670493A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158286A (en) * | 2007-11-15 | 2008-04-09 | 淮南矿业(集团)有限责任公司 | Coal mine light concentration mash gas safety conveying method and conveying system |
| CN201202974Y (en) * | 2008-05-28 | 2009-03-04 | 煤炭科学研究总院重庆研究院 | Low concentration mash gas safe conveying device |
| US20130089822A1 (en) * | 2011-04-28 | 2013-04-11 | KATALIZATOR Sp. z.o.o. | Method for utilization of low-concentration gas mixtures of combustible gas and air with stable heat energy recovery and flow reversal device for implementation of the method |
| CN202810901U (en) * | 2012-08-06 | 2013-03-20 | 煤炭工业太原设计研究院 | Gas using and emptying device in gas drainage station |
| CN203669917U (en) * | 2013-12-03 | 2014-06-25 | 神华神东保德煤矿 | Floor gas drainage system |
Non-Patent Citations (1)
| Title |
|---|
| 林雪峰等: "低浓度瓦斯管道输送安全保障装备的应用", 《煤炭技术》 * |
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Application publication date: 20140326 |