CN102828769B - Complete oil receiving, pumping and conveying device for pumping and extracting mine gas - Google Patents

Complete oil receiving, pumping and conveying device for pumping and extracting mine gas Download PDF

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Publication number
CN102828769B
CN102828769B CN201210350896.7A CN201210350896A CN102828769B CN 102828769 B CN102828769 B CN 102828769B CN 201210350896 A CN201210350896 A CN 201210350896A CN 102828769 B CN102828769 B CN 102828769B
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China
Prior art keywords
interface
pipe
gas pumping
connecting bend
threeway
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Expired - Fee Related
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CN201210350896.7A
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Chinese (zh)
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CN102828769A (en
Inventor
胡千庭
张志刚
周厚权
杨利平
王建伟
申凯
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CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE
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CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE
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Priority to CN201210350896.7A priority Critical patent/CN102828769B/en
Publication of CN102828769A publication Critical patent/CN102828769A/en
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Abstract

The invention discloses a group of gas pumping and extracting units. Each gas pumping and extracting unit comprises a connecting bend and a tee joint, wherein an upper interface of the connecting bend is connected with a gas pumping and extracting pipe, an air guide pipe is arranged between a lower interface of the connecting bend and an upper interface of the tee joint, and the tee joints of two adjacent gas pumping and extracting units are connected through an air guide pipe; and the gas pumping and extracting unit group sequentially passes through a water/slag removal device and an orifice metering device, and is finally connected with a main system pipe. The device is simple in structure and convenient to operate, not only can solve the sealing problem and the connecting-pipe length adjustment problem existing in a hole-connecting technology and devices used in the conventional gas pumping and extracting process, but also can effectively improve the pumping and extracting efficiency.

Description

Mine gas extraction is with becoming socket to take out conveying device
Technical field
The present invention relates to mine gas extraction device, especially for mine gas extraction is with becoming socket to take out conveying device.
Background technology
China is that the most serious country occurs mine gas disaster in the world, and the Gas Disaster total degree of generation accounts for half of Coal Mine Disasters total degree.The important technical of mine gas in administering is that coal seam is adopted and frontly taken out in advance, by some pre-draining boreholes of constructing in coal seam, so as to reducing coal seam gas-bearing capacity, ensures the safe back production of mine working face.Meanwhile, gas, as a kind of new forms of energy, progressively becomes for a change important component part of world energy sources structure.The gas pumping amount in China's coal-mine district increases very fast in recent years, but the average gas pumping rate in national colliery is only 22.5% left and right, average utilization remains on 30% left and right substantially, within 2011, China's mash gas extraction utilization rate also only has 46%, and be only also 38% as the down-hole mash gas extraction utilization rate of mash gas extraction main source, a large amount of high-grade energy resources is by directly emptying.Its main cause is that mine mash gas extraction concentration is on the low side, still can not reach the concentration threshold of commercial exploitation under current technological means.
Cause the main cause that mash gas extraction concentration is low to be: gas pumping conveying device mainly adopts the equipment such as sinuous coil, iron pipe elbow, iron pipe threeway, iron wire, tailrace, will between drilling and sealing pipe and extraction pipeline threeway, couple together.This hole technology can be passed through the extraction of pipeline negative pressure in extraction pipeline by the gas in boring, and extraction is by the road in main system, it is numerous and diverse that but single hole connects operation, adjust length of pipe and cut sinuous coil realization by sanction, field operation is lack of standardization, air leakage is large, material repeat usage is low, can not meet dual anti-requirement; Next is owing to having more steam, grit in extraction gas, elongated along with extraction time and fed distance, in pipeline, accumulate gradually and have more ponding and cinder, not only increase the running resistance of extraction pipe network, reduce the efficiency of whole extraction system operation, but the deslagging device principle that dewaters that mine is used is at present comparatively simple, the cinder of the part water in gas and coarsegrain can only be collected and processed, cannot remove the less coal dust of particle in gas, the effect of the slagging-off that dewaters is all undesirable; Owing to being subject to coal dust (slag) impact can accurately not measure single hole flow in metering device itself and running, cannot provide effective foundation for the optimization of extraction technique and extraction parameter simultaneously.
Summary of the invention
Technical problem to be solved by this invention is to provide mine gas extraction with becoming socket to take out conveying device, this device can not only solve the connection hole technology of using in current gas drainage under suction process and sealing problem and the tube connector length adjustment problem of installing existence, improve extraction efficiency, and simple in structure, easy to operate.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
Mine gas extraction, with becoming socket to take out conveying device, comprises that principal series is under the overall leadership;
One group of gas pumping unit, described gas pumping unit comprises connecting bend and threeway, the gas pumping pipe that is connected to suitable for reading of described connecting bend, between the upper interface of the lower interface of connecting bend and threeway, be connected to wireway, between adjacent gas pumping unit, by a wireway, threeway be each other connected;
One scummer that dewaters, comprise conical eliminator, the tangential direction on the top of described eliminator is provided with intake interface, the upper end of described eliminator is provided with the interface of giving vent to anger, lower end is provided with slag notch, cone separator is provided with containment vessel, described containment vessel is divided into upper chamber and lower chambers by separate layer, described eliminator is vertically fixed in upper chamber, described intake interface and the interface of giving vent to anger is pierce through the protection shell respectively, its port is exposed to outside containment vessel, the bottom of described lower chambers is provided with ash gate, between described intake interface and gas pumping unit group, be provided with successively a two-way union device and a wireway,
One orifice plate metering device, its inlet end is connected with the interface of giving vent to anger of the scummer that dewaters, and outlet side is connected with principal series is under the overall leadership, and it is got valve and is provided with external screw thread, gets pore and is provided with the internal thread corresponding with it;
Described two-way union device, connecting bend and threeway are scalable union device, include public access pipe, female taper cushion rubber of taking over and being placed in female adapter; The public access pipe of described two-way union device is flame-retardant and anti-static polyethylene straight pipe, and described connecting bend is flame-retardant and anti-static polyethylene elbow, and the public access pipe of described threeway is flame-retardant and anti-static polyethylene tee piece, and the port of described public access pipe is provided with external screw thread; Described female adapter is the polyethylene cone pipe of flame-retardant and anti-static, and its flat section place is provided with the internal thread with the corresponding connection of public access pipe; Described taper cushion rubber internal diameter is less than wireway external diameter 1-3 millimeter.
Further, described connecting bend is provided with valve.
The lower semisection of the scummer lower chambers that dewaters further, is for conical.
Further, described containment vessel is provided with telescoping shoring column.
Compared with prior art the technical program has following beneficial effect:
1. can separate the gas leakage problem of the union device existence of using in the gas drainage under suction process of determining at present: its taper cushion rubber internal diameter is slightly less than wireway external diameter, after putting, can automatically hold drainage tube tightly; In addition, in the process that female joint and male joint are tightened by screw thread, cushion rubber is received extruding, and cushion rubber inwall and wireway outer wall, cushion rubber annulus end face and male joint annulus end face, female joint inwall and cushion rubber outer wall form three seal points, has guaranteed the tightness connecting; Can meet extraction borehole negative pressure and the necessarily requirement of malleation under coal mine, guarantee the extracting result of boring;
2. improve extraction efficiency: when dusty gas tangentially enters from air inlet port, be subject to the constraint of wall for the helical movement along cylinder inner wall downwards, under centrifugal inertial force effect, particle is thrown to wall, and air-flow is still at internal layer, tentatively realized the separated of particle and air-flow, particle drops down onto the cone slag notch at the end along wall under Action of Gravity Field, enters storage slag space, and air-flow is at tapered segment, radius of gyration is dwindled and tangential velocity increase, continues for the helical movement downwards.Near the bottom of circular cone, after air-flow is fully purified, transferring to rises rotatablely moves, and finally by gas outlet, top, is discharged, and through experimental verification, its separative efficiency can reach more than 90%, can improve thus the efficiency of whole extraction system operation;
3. can solve tube connector length adjustment problem: two-way union device, connecting bend and threeway in whole system are scalable union device, the internal diameter of public access pipe is greater than the external diameter of connected pipe, and there is certain length, certain flexible surplus can be provided, when drainage tube is longer, the pipeline of unnecessary length is inserted to public access pipe; When drainage tube more in short-term, public access pipe itself provides certain length to connect the drainage tube at two ends;
Orifice plate metering device get the structure that valve adopts bolt, when transportation, can separate, can avoid traditional and get valve for being weldingly fixed on orifice plate metering device, during transportation, be easy to damage this situation;
5. valve has been integrated on elbow, has reduced the labour intensity of connecting line, has reduced the probability of gas leakage.
Accompanying drawing explanation
Fig. 1 is that mine gas extraction of the present invention is used into the structural representation that conveying device is taken out in socket;
Fig. 2 is the present invention's scummer generalized section that dewaters;
Fig. 3 is the dewater cyclone separator arrangement schematic diagram of scummer of the present invention;
Fig. 4 is two-way union device enlarged diagram of the present invention;
Fig. 5 is the female schematic diagram of taking over of the present invention;
Fig. 6 is taper cushion rubber schematic diagram of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, mine gas extraction, with becoming socket to take out conveying device, comprises principal series under the overall leadership 1;
One group of gas pumping unit, gas pumping unit comprises connecting bend 2 and threeway 3, the gas pumping pipe 4 that is connected to suitable for reading of connecting bend 2, between the upper interface of the lower interface of connecting bend 2 and threeway, be connected to the first wireway 5, between extraction unit, being provided with the second wireway 6 is connected with the interface of a side of its threeway 3 respectively, thus extraction unit is coupled together, by the interface sealing of the threeway 3 of extraction unit group right-hand member, the interface of the threeway 3 of left end connects the 3rd wireway 7;
One scummer 8 that dewaters, comprise conical eliminator, the tangential direction on the top of eliminator 9 is provided with intake interface 10, the upper end of eliminator is provided with the interface 11 of giving vent to anger, lower end is provided with slag notch 12, eliminator 9 is sealed in a cylinder 13, cylinder 13 is divided into upper chamber and lower chambers by rib 14, eliminator is positioned at upper chamber, vertically be fixed on rib 14, slag notch 12 is over against lower chambers, described intake interface 10 and the interface 11 of giving vent to anger penetrate respectively cylinder 13, its port is placed in outside cylinder 13, the bottom of lower chambers is provided with ash gate 15, intake interface 10 is connected by a two-way union device 16 with the 3rd wireway 7, the lower semisection of its lower chambers is conical, cylinder 13 is provided with telescoping shoring column 17,
One orifice plate metering device 18, inlet end is connected with the interface 11 of giving vent to anger of the scummer 8 that dewaters by another two-way union device 16, outlet side is connected with principal series under the overall leadership 1 by a connecting bend 2, and it is got valve 19 and is provided with external screw thread, gets pore and is provided with the internal thread corresponding with it;
Two-way union device 16, connecting bend 2 and threeway 3 are scalable union device, include public access pipe, female adapter 20 and are placed in female taper cushion rubber 21 of taking in 20; The public access pipe of two-way union device 16 is flame-retardant and anti-static polyethylene straight pipe, connecting bend 2 flame-retardant and anti-static polyethylene elbows, and the public access pipe of threeway is flame-retardant and anti-static polyethylene tee piece, the port of public access pipe is respectively equipped with external screw thread; The polyethylene cone pipe that female adapter 20 is flame-retardant and anti-static, its flat section place is provided with the internal thread with the corresponding connection of public access pipe; Taper cushion rubber 21 internal diameters are less than 3 millimeters of connected wireway external diameters.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; do not departing under the prerequisite of structure of the present invention; can also make some distortion and improvement; these also should be considered as protection scope of the present invention, and these can not affect effect of the invention process and practical applicability.

Claims (1)

1. mine gas extraction, with becoming socket to take out conveying device, is characterized in that: comprise that principal series is under the overall leadership;
One group of gas pumping unit, described gas pumping unit comprises connecting bend and threeway, the gas pumping pipe that is connected to suitable for reading of described connecting bend, between the upper interface of the lower interface of connecting bend and threeway, be connected to wireway, between adjacent gas pumping unit, by a wireway, threeway be each other connected;
One scummer that dewaters, comprise conical eliminator, the tangential direction on the top of described eliminator is provided with intake interface, the upper end of described eliminator is provided with the interface of giving vent to anger, lower end is provided with slag notch, cone separator is provided with containment vessel, described containment vessel is divided into upper chamber and lower chambers by separate layer, described eliminator is vertically fixed in upper chamber, described intake interface and the interface of giving vent to anger is pierce through the protection shell respectively, its port is exposed to outside containment vessel, the bottom of described lower chambers is provided with ash gate, between described intake interface and gas pumping unit group, be provided with successively a two-way union device and a wireway,
One orifice plate metering device, its inlet end is connected with the interface of giving vent to anger of the scummer that dewaters, and outlet side is connected with principal series is under the overall leadership, and it is got valve and is provided with external screw thread, gets pore and is provided with the internal thread corresponding with it;
Described two-way union device, connecting bend and threeway are scalable union device, include public access pipe, female taper cushion rubber of taking over and being placed in female adapter; The public access pipe of described two-way union device is flame-retardant and anti-static polyethylene straight pipe, and described connecting bend is flame-retardant and anti-static polyethylene elbow, and the public access pipe of described threeway is flame-retardant and anti-static polyethylene tee piece, and the port of described public access pipe is provided with external screw thread; Described female adapter is the polyethylene cone pipe of flame-retardant and anti-static, and its flat section place is provided with the internal thread with the corresponding connection of public access pipe; Described taper cushion rubber internal diameter is less than wireway external diameter 1-3 millimeter.
2. mine gas extraction, with becoming socket to take out conveying device, is characterized in that: described connecting bend is provided with valve as claimed in claim 1.
3. mine gas extraction, with becoming socket to take out conveying device, is characterized in that as claimed in claim 1: described in dewater the lower semisection of scummer lower chambers for conical.
4. mine gas extraction, with becoming socket to take out conveying device, is characterized in that: described containment vessel is provided with telescoping shoring column as claimed in claim 3.
CN201210350896.7A 2012-09-20 2012-09-20 Complete oil receiving, pumping and conveying device for pumping and extracting mine gas Expired - Fee Related CN102828769B (en)

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CN201210350896.7A CN102828769B (en) 2012-09-20 2012-09-20 Complete oil receiving, pumping and conveying device for pumping and extracting mine gas

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Application Number Priority Date Filing Date Title
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CN105298533A (en) * 2015-10-21 2016-02-03 煤炭科学技术研究院有限公司 Drainage system and drainage device for gas extraction drilling hole
CN105240045A (en) * 2015-10-22 2016-01-13 中国矿业大学(北京) Mined-out area gas extraction device with remotely controlled telescopic vertical pipe
CN105422167B (en) * 2015-12-10 2018-07-27 华北科技学院 A kind of gas drainage pipeline environment simulator
CN106988777A (en) * 2017-05-02 2017-07-28 阳泉煤业集团华越机械有限公司 A kind of method that utilization screen casing draws out methane
CN107701221B (en) * 2017-09-30 2023-05-30 河南理工大学 High negative pressure pipeline gas extraction metering device and use method thereof
CN110332005A (en) * 2019-05-09 2019-10-15 中煤科工集团重庆研究院有限公司 The scalable airtight drop resistance type of mash gas pumping drilling joins aperture apparatus
CN111751196B (en) * 2020-07-03 2023-06-09 重庆光可巡科技有限公司 Gas drainage comprehensive parameter measuring instrument

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WO2002074882A1 (en) * 2001-03-20 2002-09-26 Uop Llc Two stage hydrocracking process
CN101158286B (en) * 2007-11-15 2010-07-07 淮南矿业(集团)有限责任公司 Coal mine light concentration mash gas safety conveying method and conveying system
CN102031950B (en) * 2010-12-06 2012-02-15 煤炭科学研究总院西安研究院 Hole-forming process method for comb gas extraction borehole in coal seam roof
CN102392676B (en) * 2011-09-14 2013-07-17 成都晟鑫机电设备有限公司 Integrated device for separating gas, water and slag
CN202851053U (en) * 2012-09-20 2013-04-03 中煤科工集团重庆研究院 Whole set connecting and pumping conveying device for mine gas pumping

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Granted publication date: 20140820

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