CN103452579A - Negative pressure drainer and gas drainage pipeline - Google Patents
Negative pressure drainer and gas drainage pipeline Download PDFInfo
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- CN103452579A CN103452579A CN2013104095129A CN201310409512A CN103452579A CN 103452579 A CN103452579 A CN 103452579A CN 2013104095129 A CN2013104095129 A CN 2013104095129A CN 201310409512 A CN201310409512 A CN 201310409512A CN 103452579 A CN103452579 A CN 103452579A
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- storage device
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Abstract
The invention discloses a negative pressure drainer. One end of a gathering pipe is arranged on the lower side of a drainage main pipe, and is communicated with the drainage main pipe, and the gathering pipe is provided with a first valve; a water storage device is communicated with the other end of the gathering pipe, and is provided with a drainage hole which can be closed in the bottom and a vent which can be closed in the top. At the beginning, the first valve, the drainage hole and the vent are all closed, water in the drainage main pipe flows into the gathering pipe under the action of self weight, and is retained in the gathering pipe by the first valve; then the first valve is opened, the gathering pipe and the water storage device are in the same negative pressure state as the drainage main pipe, and the water retained by the first valve falls into the water storage device under the action of self weight; the first valve is closed, and the vent is opened, so that air pressure in the water storage device is the same as the barometric pressure; then the drainage hole is opened for draining. By adopting the drainer, pump stopping and gate closing are not needed during the draining process, the normal operation of a drainage system is not influenced, the structure is simple, the cost is low, and the manufacturing is convenient. The invention further discloses a gas drainage pipeline.
Description
Technical field
The present invention relates to the coal mine equipment technical field, particularly a kind of negative pressure tailrace and gas drainage pipeline.
Background technology
According to statistics in recent years, in various coal mining accident, the coal mining accident that gas explosion causes accounts for 47% of coal mining accident sum.In order to guarantee safe production, the gas in mine must be excluded out, but, because gas emission in coal mine is very large, be difficult to dilution by ventilation and get rid of, therefore usually adopt the method for extraction, get rid of gas, reduce the burden of ventilating.
Draw out methane in coal mine and need to use special pipeline, namely gas drainage pipeline.The performance of gas drainage pipeline directly affects the safety in production in colliery.In the gas drainage under suction process, aqueous water in coal seam is because the negative pressure of deadweight and extraction pipeline generation inevitably flows into gas drainage pipeline, and, in the turning round of gas drainage pipeline, low-lying or temperature jump place, the vaporous water be mixed in gas can condense into aqueous water, and these aqueous waters can cause the local useful cross section of gas drainage pipeline obviously to diminish, and serious even can stop up extraction pipeline, cause the water blocking problem, have a strong impact on the gas drainage under suction effect.
In prior art, traditional method of discharging water is that the head that discharges water is installed on gas drainage pipeline, in the process of discharging water, need termination of pumping and closed shutter, so not only affect the normal operation of gas drainage system, also can cause coal-face gas density in mine to rise, cause potential safety hazard, impact is normally produced.Although, along with scientific and technical development, had the negative pressure tailrace that can solve the water blocking problem to come into operation at present, its ubiquity complex structure, the shortcoming that cost is high, increase the weight of the cost of coal production, in the coal industry downturn, further increased the weight of business burden.
Therefore, how to provide a kind of negative pressure tailrace, make it simple in structure, cheap, contribute to reduce the cost of coal production, become those skilled in the art's important technological problems urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of negative pressure tailrace and gas drainage pipeline, to reach, make it simple in structure, cheap, contribute to reduce the purpose of the cost of coal production.
For achieving the above object, the invention provides following technical scheme:
A kind of negative pressure tailrace, discharge water for gas drainage pipeline, comprising:
Assemble pipe, an end is arranged on extraction supervisor's downside, and is communicated with described extraction supervisor, on described gathering pipe, is provided with the first valve;
Water storage device, be communicated with the other end of described gathering pipe, and bottom is provided with closeable dewatering orifice, and top is provided with closeable gravity vent.
Preferably, the end that described gathering pipe is communicated with described extraction supervisor is arranged on that described extraction is responsible for turns round, low-lying or temperature jump place.
Preferably, described gathering pipe is telescoping tube.
Preferably, be provided with the second valve on described dewatering orifice, be provided with the 3rd valve on described gravity vent.
Preferably, described the first valve, described the second valve and described the 3rd valve are ball valve.
Preferably, described water storage device is made by steel pipe.
Preferably, described water storage device bottom also is provided with bearing.
Preferably, described bearing is provided with two, the symmetrical two ends that are arranged on described water storage device.
A kind of gas drainage pipeline, comprise extraction supervisor and negative pressure tailrace, and described negative pressure tailrace is negative pressure tailrace as above.
From technique scheme, can find out, negative pressure tailrace provided by the invention, comprise and assemble pipe and water storage device, wherein, assembles the downside that Guan Yiduan is arranged on the extraction supervisor, and be communicated with the extraction supervisor, assembles on pipe and be provided with the first valve; Water storage device is communicated with the other end of assembling pipe, and bottom is provided with closeable dewatering orifice, and top is provided with closeable gravity vent.Starting stage, the first valve, dewatering orifice and gravity vent are all closed, aqueous water in gas drainage pipeline flows under the effect of self gravitation to be assembled in pipe, and be trapped in and assemble in pipe by the first valve, then open the first valve, assembling pipe and water storage device is responsible in identical negative pressure state with extraction, the water of being held back by the first valve in the gathering pipe is under the effect of self gravitation, fall into water storage device, close the first valve, open gravity vent, make the air pressure in water storage device identical with atmospheric pressure, the dewatering orifice of opening again the water storage device bottom discharges water, this tailrace does not need termination of pumping and closed shutter in the process of discharging water, do not affect the normal operation of gas drainage system, simultaneously simple in structure, cost is low, be convenient to make.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the negative pressure tailrace that Fig. 1 provides for the embodiment of the present invention.
The specific embodiment
The invention provides a kind of negative pressure tailrace and gas drainage pipeline, to reach, make it simple in structure, cheap, contribute to reduce the purpose of the cost of coal production.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
Refer to Fig. 1, the structural representation of the negative pressure tailrace that Fig. 1 provides for the embodiment of the present invention.
A kind of negative pressure tailrace provided by the invention, discharge water for gas drainage pipeline, comprises and assemble pipe 2 and water storage device 4.
Wherein, assemble pipe 2 for collecting extraction supervisor 1 water, the one end is arranged on extraction supervisor 1 downside, and is communicated with extraction supervisor 1, assembles on pipe 2 and also is provided with the first valve 3; Water storage device 4 assembles for storing the water that pipe 2 is assembled, and it is communicated with the other end of assembling pipe 2, and bottom is provided with closeable dewatering orifice 8, and top is provided with closeable gravity vent 5.
Compared with prior art, the negative pressure tailrace that the embodiment of the present invention provides, the gathering pipe 2 and water storage device 4 that comprise mutual isolation, in the starting stage, the first valve 3, dewatering orifice 8 and gravity vent 5 are all in closed condition, aqueous water in gas drainage pipeline flows under the effect of self gravitation to be assembled in pipe 2, and be trapped in and assemble in pipe 2 by the first valve 3, at this moment, open the first valve 3, assemble pipe 2 and water storage device 4 and be responsible for 1 in identical negative pressure state with extraction, assemble the pipe 2 interior water of being held back by the first valve 3 under the effect of self gravitation, fall into water storage device 4, then close the first valve 3, open gravity vent 5, make the air pressure in water storage device 4 identical with atmospheric pressure, the dewatering orifice 8 of opening again water storage device 4 bottoms discharges water, this tailrace does not need termination of pumping and closed shutter in the process of discharging water, do not affect the normal operation of gas drainage system, simultaneously simple in structure, cost is low, the current material that can use colliery to have is made, draw materials conveniently, contribute to reduce the cost of coal production.
More easily condense into aqueous water owing to being mixed in vaporous water in the gas air-flow in the turning round of extraction supervisor 1, low-lying or temperature jump place, so, in embodiments of the present invention, assembling pipe 2 and extraction supervisor 1 end be communicated with is arranged on extraction and is responsible for 1 turn round, low-lying or temperature jump place, like this, water after contributing to condense enters faster to be assembled in pipe 2, guarantees extraction supervisor 1 net sectional area, makes it constantly keep common state.
Assemble pipe 2 and can adopt the tubing of various ways to make, in embodiments of the present invention, assembling pipe 2 is telescoping tube, and telescoping tube can stretch as required and be crooked, is convenient to be arranged on sufficient not position, space, is convenient to adjust.
It is a variety of that dewatering orifice 8 and gravity vent 5 realize that closeable mode has, in embodiments of the present invention, be provided with the second valve 6 on dewatering orifice 8, be provided with the 3rd valve 7 on gravity vent 5, preferably, the first valve 3, the second valve 6 and the 3rd valve 7 are ball valve, because ball valve has simple in structure, good airproof performance, the advantage such as easy to operate, suitable to switch, stop valve uses, and ball valve is the standing goods and materials on colliery, do not need to purchase separately, be convenient to obtain, therefore, select ball valve as the first valve 3, the second valve 6 and the 3rd valve 7 can be in the purposes well reached assembling pipe 2 and water storage device 4 sealings, reduce the cost of negative pressure tailrace, in order to reduce the coal mining cost.
In order to make water storage device 4 keep stable, the dewatering orifice 8 of simultaneously being convenient to the article-storage device bottom discharges water, in the embodiment of the present invention, water storage device 4 bottoms also are provided with bearing 9, bearing 9 is lifted away from ground by it when supporting water storage device 4, the dewatering orifice 8 of being convenient to water storage device 4 bottoms discharges water, and bearing 9 can adopt the salvage property on colliery to make, such as steel pipe, iron bar etc.Preferably, in the embodiment of the present invention, bearing 9 is provided with two, and the symmetrical two ends that are arranged on water storage device 4.
The present invention also provides a kind of gas drainage pipeline, comprises extraction supervisor 1 and negative pressure tailrace, and wherein, the negative pressure tailrace is negative pressure tailrace as above.
In this manual, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, realization in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a negative pressure tailrace, discharge water for gas drainage pipeline, it is characterized in that, comprising:
Assemble pipe (2), an end is arranged on extraction supervisor's (1) downside, and is communicated with described extraction supervisor (1), is provided with the first valve (3) on described gathering pipe (2);
Water storage device (4), be communicated with the other end of described gathering pipe (2), and bottom is provided with closeable dewatering orifice (8), and top is provided with closeable gravity vent (5).
2. negative pressure tailrace according to claim 1, is characterized in that, described gathering pipe (2) and described extraction are responsible for an end that (1) be communicated with and are arranged on the turning round of described extraction supervisor (1), low-lying or temperature jump place.
3. negative pressure tailrace according to claim 1, is characterized in that, described gathering pipe (2) is telescoping tube.
4. negative pressure tailrace according to claim 1, is characterized in that, is provided with the second valve (6) on described dewatering orifice (8), is provided with the 3rd valve (7) on described gravity vent (5).
5. negative pressure tailrace according to claim 4, is characterized in that, described the first valve (3), described the second valve (6) and described the 3rd valve (7) are ball valve.
6. negative pressure tailrace according to claim 1, is characterized in that, described water storage device (4) is made by steel pipe.
7. negative pressure tailrace according to claim 1, is characterized in that, described water storage device (4) bottom also is provided with bearing (9).
8. negative pressure tailrace according to claim 7, is characterized in that, described bearing (9) is provided with two, the symmetrical two ends that are arranged on described water storage device (4).
9. a gas drainage pipeline, comprise extraction supervisor (1) and negative pressure tailrace, it is characterized in that, described negative pressure tailrace is negative pressure tailrace as described as claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104095129A CN103452579A (en) | 2013-09-10 | 2013-09-10 | Negative pressure drainer and gas drainage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104095129A CN103452579A (en) | 2013-09-10 | 2013-09-10 | Negative pressure drainer and gas drainage pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN103452579A true CN103452579A (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013104095129A Pending CN103452579A (en) | 2013-09-10 | 2013-09-10 | Negative pressure drainer and gas drainage pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058887A (en) * | 2019-12-30 | 2020-04-24 | 中铁十四局集团大盾构工程有限公司 | Long-distance ventilation and safety control system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1404742A (en) * | 1921-04-04 | 1922-01-31 | Ezekiel C Condit | Mine ventilator |
| CN2937483Y (en) * | 2006-08-25 | 2007-08-22 | 王立朝 | Nagative pressure water discharge residual extraction equipment |
| CN201747398U (en) * | 2009-12-23 | 2011-02-16 | 苏毅 | Continuous negative pressure automatic water drainage device |
| CN201991548U (en) * | 2011-04-15 | 2011-09-28 | 淮南矿业(集团)有限责任公司 | Drainage, slag discharge and gas extraction integrated device |
| CN102797498A (en) * | 2011-05-24 | 2012-11-28 | 淮南矿业(集团)有限责任公司 | Automatic draining system and method for mine gas extraction pipe network |
| CN203161285U (en) * | 2013-01-30 | 2013-08-28 | 江苏建筑职业技术学院 | Integrated automatically-controlled water drainage device of gas drainage pipeline |
-
2013
- 2013-09-10 CN CN2013104095129A patent/CN103452579A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1404742A (en) * | 1921-04-04 | 1922-01-31 | Ezekiel C Condit | Mine ventilator |
| CN2937483Y (en) * | 2006-08-25 | 2007-08-22 | 王立朝 | Nagative pressure water discharge residual extraction equipment |
| CN201747398U (en) * | 2009-12-23 | 2011-02-16 | 苏毅 | Continuous negative pressure automatic water drainage device |
| CN201991548U (en) * | 2011-04-15 | 2011-09-28 | 淮南矿业(集团)有限责任公司 | Drainage, slag discharge and gas extraction integrated device |
| CN102797498A (en) * | 2011-05-24 | 2012-11-28 | 淮南矿业(集团)有限责任公司 | Automatic draining system and method for mine gas extraction pipe network |
| CN203161285U (en) * | 2013-01-30 | 2013-08-28 | 江苏建筑职业技术学院 | Integrated automatically-controlled water drainage device of gas drainage pipeline |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058887A (en) * | 2019-12-30 | 2020-04-24 | 中铁十四局集团大盾构工程有限公司 | Long-distance ventilation and safety control system and method |
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Application publication date: 20131218 |