WO2020244136A1 - Dispositif de drainage d'eau et de dépoussiérage pour pipeline d'extraction de gaz - Google Patents

Dispositif de drainage d'eau et de dépoussiérage pour pipeline d'extraction de gaz Download PDF

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Publication number
WO2020244136A1
WO2020244136A1 PCT/CN2019/115201 CN2019115201W WO2020244136A1 WO 2020244136 A1 WO2020244136 A1 WO 2020244136A1 CN 2019115201 W CN2019115201 W CN 2019115201W WO 2020244136 A1 WO2020244136 A1 WO 2020244136A1
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WO
WIPO (PCT)
Prior art keywords
dust removal
gas
drainage
float
dust
Prior art date
Application number
PCT/CN2019/115201
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English (en)
Chinese (zh)
Inventor
刘震
李�昊
杨赫
杨文智
程卫民
周刚
王刚
倪冠华
Original Assignee
山东科技大学
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Application filed by 山东科技大学 filed Critical 山东科技大学
Publication of WO2020244136A1 publication Critical patent/WO2020244136A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F16/00—Drainage
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose

Definitions

  • the invention relates to the technical field of gas drainage, in particular to a gas drainage and dust removal device for gas drainage on a gas drainage pipeline.
  • the extracted water and dust will not only increase the extraction resistance, but also affect the detection instruments embedded in the extraction pipeline.
  • detection instruments such as pitot tube or orifice flowmeter, gas temperature and concentration sensor affect the accurate measurement of gas drainage parameters, so drainage and dust reduction treatment is required at the orifice of the drainage borehole.
  • the mine negative pressure drain is usually used to solve the problem.
  • the negative pressure drain for mines requires manual maintenance on a regular basis, and the purification effect of dust-containing gas is poor. Dust will affect the accurate measurement of gas drainage parameters and affect the service life of the gas parameter detection device. For this reason, it is necessary to provide a drainage and dust removal device to process the gas on the gas extraction pipeline, effectively eliminate the dust and water in it, and realize the automatic discharge of dust and water.
  • the present invention provides a gas extraction pipeline drainage and dust removal device.
  • the specific technical solutions are as follows:
  • the gas collection mechanism includes a gas collection pipe, a gas collection box and an air inlet pipe.
  • the gas collection pipe is connected with the gas collection pipeline.
  • the gas collection pipe collects gas in the gas collection box.
  • the device also includes The dust removal mechanism and the drainage and dust removal mechanism; the air collecting box is connected with the dust removal mechanism through the air inlet pipe.
  • the dust removal mechanism includes a dust removal chamber and a diversion pipe.
  • the drainage and dust removal mechanism is arranged below the dust removal mechanism;
  • the drainage and dust removal mechanism includes a water tank, a guide rod, Power float, upper sleeve, connecting disc, balance float, lower sleeve, piston valve, fixed rod and drain pipe;
  • connecting disc includes connecting rope, upper connecting disc and lower connecting disc;
  • fixed rod is set along the inner diameter of drain pipe, guide rod Fixed in the middle of the fixed rod;
  • the guide rod is fixed on the axis of the water storage tank, the power float, balance float and connecting plate are all sleeved on the guide rod,
  • the upper sleeve connects the power float and the upper connecting plate, and the balance float is set Between the upper connecting disc and the lower connecting disc;
  • the lower sleeve connects the piston valve and the lower connecting disc.
  • the gas collecting box is a reducing pipe
  • the gas collecting pipe is connected to one side of the large diameter gas collecting box
  • the air inlet pipe is connected to the small diameter gas collecting box side of the gas collecting box; the gas inlet pipe sends the gas into the dust removal chamber tangentially Dust removal chamber.
  • the draft tube is arranged on the central axis of the top of the dust removal chamber, the upper part of the dust removal chamber is cylindrical, and the lower part of the dust removal chamber is conical.
  • a water dust collection tube is provided at the lower outlet of the dust removal chamber, and the water dust collection tube is arranged along the axis of the dust removal chamber, and the lower end of the water dust collection tube is connected with the upper part of the water storage tank.
  • the cross-sectional area of the water storage tank gradually decreases from the connecting end of the water dust collection pipe to the connecting end of the drain pipe.
  • the water storage tank has a cone shape, a truncated cone shape, a polygonal cone shape or a polygonal cone shape.
  • the upper end of the guide rod is provided with a dust cover, and the guide rod and the fixed rod are perpendicular to each other.
  • the maximum buoyancy of the balance float in the water is equal to the sum of the gravity of the balance float, the lower connecting plate, the lower sleeve and the piston valve.
  • the upper connecting plate in the initial state, the upper connecting plate is pressed against the balance float under the action of gravity, and the flexible connecting rope is in a relaxed state; after the gas drainage pipeline drainage and dust removal device works for a period of time, the water storage tank After the inner liquid level continues to rise until the balance float is not exceeded, the balance float, the lower connecting plate, and the piston valve connected by the lower sleeve receive the buoyancy provided by the balance float. At this time, the shape piston does not open; then the liquid level in the water storage tank continues to rise When the water rises to the power float, the power float starts to rise due to buoyancy, and the flexible connecting rope is gradually tightened.
  • the connecting rope After the connecting rope is tensioned, as the liquid level continues to rise, the power float continues to rise under the action of buoyancy, and the connecting rope starts to drive down.
  • the connecting disc moves upwards, and the lower connecting disc drives the balance float, the lower sleeve and the piston valve upwards, the drain pipe opens, and the dust and water at the bottom are discharged; finally as the liquid level drops, the power float begins to drop, and the connecting rope gradually relaxes
  • the power float drives the upper connecting plate down to contact with the balance float
  • the balance float drives the piston valve down under the pressure of the upper connecting plate to close the drain pipe.
  • the gas extraction pipeline drainage and dust removal device provided by the present invention separates the gas from the dust and water through the dust removal mechanism, and leads the pure gas through the draft tube, and the dust removal mechanism removes the separated dust and water Drained into the drainage and dust removal mechanism, the drainage and dust removal mechanism automatically drains water.
  • This device can improve the accuracy of gas concentration detection and prolong the life of the gas concentration detector, improve the purity of gas extraction, and prevent the mixed dust and water in the extraction of gas Damage to pipelines and equipment.
  • the dust removal chamber of the device uses the principle of swirling flow to separate dust and water; the drainage and dust removal mechanism uses the special structure in the water storage tank to realize the automatic opening and closing of the piston valve, according to the water level in the water tank To discharge accumulated water, the cross-sectional area setting of the water storage tank also solves the problem that the negative pressure of the dust removal mechanism is difficult to maintain a balance.
  • the bottom of the water storage tank always ensures that there is a certain amount of water to form a water seal to ensure that no outside air enters.
  • Figure 1 is a schematic diagram of the structure of the drainage and dust removal device for the gas drainage pipeline
  • Figure 2 is a schematic diagram of the structure of the drainage and dust removal mechanism
  • the gas collecting mechanism includes a gas collecting pipe 1, a gas collecting box 2 and an air inlet pipe 3.
  • the gas collecting pipe 1 is connected with a pipeline for gas extraction, and the gas collecting pipe 1 collects gas in the gas collecting box 2.
  • the gas collecting box 2 is a reducing pipe, the gas collecting pipe 1 is connected to one side of the large-diameter gas collecting box 2, and the air inlet pipe 3 is connected to the small-diameter gas collecting box 2 side of the gas collecting box 2, so that the The extraction gas is combined and introduced to ensure the gas flow pressure.
  • the device also includes a dust removal mechanism and a drainage and dust removal mechanism.
  • the dust removal mechanism separates the gas from dust and water, and leads the pure gas through the draft tube.
  • the dust removal mechanism discharges the separated dust and water into the drainage and dust removal mechanism.
  • the drainage and dust removal mechanism automatically drains water.
  • the use of this device can improve the accuracy of gas concentration detection and prolong the life of the gas concentration detector, improve the purity of gas extraction, and prevent the mixed dust and water in the extracted gas from affecting the pipeline and equipment damage.
  • the gas collecting box 2 is connected to the dust removal mechanism through the air inlet pipe 3, and the extracted gas is maintained at the delivery pressure through the air inlet pipe 3, and is sent to the dust removal mechanism for dust-gas separation and water-gas separation.
  • the dust removal mechanism specifically includes a dust removal chamber 5 and a guide pipe 4, and the drainage and dust removal mechanism is arranged below the dust removal mechanism.
  • the guide tube 4 is arranged on the central axis of the top of the dust removal chamber, the upper part of the dust removal chamber 5 is cylindrical, and the lower part of the dust removal chamber 5 is conical.
  • the air inlet pipe 3 sends gas into the dust removal chamber 5 along the tangential direction of the dust removal chamber 5.
  • a water dust collection pipe 6 is arranged at the lower outlet of the dust removal chamber 5, and the water dust collection pipe 6 is arranged along the axis of the dust removal chamber 5. The lower end of the dust collecting pipe 6 is connected to the upper part of the water storage tank 8.
  • the air flow enters the dust removal chamber tangentially along the upper part of the dust removal chamber 5, and the gas moves along the inner wall of the upper part of the dust removal chamber 5.
  • the dust and water in the dust and water collide with the inner wall of the chamber under the action of centrifugal force, lose energy and be captured and then fall
  • an inner cyclone formed by the dust-removed gas on the shaft is formed, and finally the dust-removed gas is drawn away from the draft tube.
  • the drainage and dust removal mechanism includes a water storage tank 8, a guide rod 10, a power float 11, an upper sleeve 12, a connecting plate, a balance float 14, a lower sleeve 17, a piston valve 18, a fixed rod 20 and a drain pipe 19.
  • the connecting plate includes a connection The rope 15, the upper connecting disc 13 and the lower connecting disc 16, the fixed rod 20 is arranged along the inner diameter of the drain pipe 19, the guide rod 10 is fixed in the middle of the fixed rod 20, and the guide rod 10 is fixed on the axis of the water storage tank 8. 11.
  • the balance float 14 and the connecting plate are both sleeved on the guide rod 10.
  • the upper sleeve 12 connects the power float 11 and the upper connecting plate 13, and the balance float is set between the upper connecting plate 13 and the lower connecting plate 16, and the lower sleeve Connect the piston valve 18 and the lower connecting plate 16.
  • the cross-sectional area of the water storage tank 8 gradually decreases from the connection end of the water dust collection pipe to the connection end of the drainage pipe.
  • the water storage tank 8 may be in the shape of a cone, a truncated cone, a polygonal cone or a polygonal truncated cone.
  • the upper end of the guide rod 10 is provided with a dust cover 9 which is in the shape of an umbrella.
  • the area of the dust cover 9 is larger than the diameter of the sleeve, so as to prevent dust and water from entering the upper or lower sleeve, the guide rod 10 and The fixing rods 20 are perpendicular to each other.
  • the maximum buoyancy of the balance float 14 in the water is equal to the sum of the gravity of the balance float 14, the lower connecting plate 16, the lower sleeve 17, and the piston valve 18.
  • the upper connecting plate 13 In the water storage tank 8, in the initial state, the upper connecting plate 13 is pressed against the balance float 14 under the action of gravity, and the flexible connecting rope 15 is in a relaxed state; after the gas drainage pipeline drainage and dust removal device works for a period of time, the water is stored After the liquid level in the tank 8 continues to rise to the level of the balance float 14, the balance float 14, the lower connecting plate 16, and the piston valve 18 connected by the lower sleeve 17 are subjected to the buoyancy provided by the balance float 14, and the shaped piston is not opened at this time; The liquid level in the water storage tank 8 continues to rise. When the water rises to the power float 11, the power float 11 starts to rise due to buoyancy, and the flexible connecting rope 15 is gradually tightened.
  • the connecting rope 15 After the connecting rope 15 is tightened, the liquid level continues to rise and the power float 11 continues to rise under the action of buoyancy, the connecting rope 15 starts to drive the lower connecting plate 16 to move upwards, while the lower connecting plate drives the balance float 14, the lower sleeve 17 and the piston valve 18 to move upwards, the drain pipe 19 is opened, and dust accumulates at the bottom. And the water is discharged; finally as the liquid level drops, the power float 11 begins to descend, and the connecting rope 15 gradually relaxes. When the power float 11 drives the upper connecting plate to descend to contact with the balance float 14, the balance float 14 is on the upper connecting plate 13 The pressure drives the piston valve 18 down to close the drain pipe 19.
  • the gas drainage pipeline drainage and dust removal device can realize continuous drainage and dust removal of the gas drainage pipeline, and can automatically discharge sewage, which is efficient, convenient and economical.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention concerne un dispositif de drainage d'eau et de dépoussiérage pour une pipeline d'extraction de gaz, comprenant : un mécanisme de collecte de gaz, un mécanisme de dépoussiérage, et un mécanisme de drainage d'eau et de dépoussiérage (7). Le mécanisme de collecte de gaz comprend un tuyau de collecte de gaz (1), une boîte de collecte de gaz (2) et un tuyau d'entrée d'air (3). Le mécanisme de dépoussiérage comprend une chambre de dépoussiérage (5) et un tuyau de guidage (4). Le mécanisme de drainage d'eau et de dépoussiérage (7) est disposé au-dessous du mécanisme de dépoussiérage et le mécanisme de drainage et de dépoussiérage (7) comprend un réservoir de stockage d'eau (8), une tige de guidage (10), une bouée d'alimentation (11), un manchon supérieur (12), une plaque de raccordement, une bouée d'équilibrage (14), un manchon inférieur (17), une soupape à piston (18), une tige fixe (20) et un tuyau de vidange (19). Le manchon supérieur (12) est raccordé à la bouée d'alimentation (11) et à une plaque de raccordement supérieure (13), une extrémité inférieure d'une plaque de raccordement inférieure (16) est raccordée à la soupape à piston (18) à travers le manchon inférieur (17), et la tige de guidage (10) fixe les manchons (12, 17) et d'autres structures. Le gaz extrait par extraction de gaz passe à travers le mécanisme de collecte de gaz et le mécanisme de dépoussiérage et est ensuite évacué à travers le mécanisme de drainage d'eau et de dépoussiérage (7), ce qui permet de résoudre le problème technique selon lequel le gaz extrait influence le fonctionnement d'un dispositif de surveillance de gaz du fait qu'il contient de la poussière et de l'eau.
PCT/CN2019/115201 2019-06-03 2019-11-04 Dispositif de drainage d'eau et de dépoussiérage pour pipeline d'extraction de gaz WO2020244136A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910474465.3 2019-06-03
CN201910474465.3A CN110273704B (zh) 2019-06-03 2019-06-03 一种瓦斯抽采管路排水除尘装置

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WO2020244136A1 true WO2020244136A1 (fr) 2020-12-10

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110273704B (zh) * 2019-06-03 2021-03-19 山东科技大学 一种瓦斯抽采管路排水除尘装置
CN111119979B (zh) * 2019-12-08 2021-12-03 山西晋煤集团技术研究院有限责任公司 小流量瓦斯抽采钻孔精确测量系统
CN116139599B (zh) * 2023-04-23 2023-06-23 佛山市清极能源科技有限公司 一种燃料电池的气水分离器

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JP2010116516A (ja) * 2008-11-14 2010-05-27 Ihi Corp エネルギーガス精製方法及びエネルギーガス精製装置
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CN109236349A (zh) * 2018-11-14 2019-01-18 寇俊祥 一种煤矿采集用排渣及除尘设备
CN110273704A (zh) * 2019-06-03 2019-09-24 山东科技大学 一种瓦斯抽采管路排水除尘装置

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CN203430449U (zh) * 2013-08-02 2014-02-12 焦作市长海机械科技有限公司 矿井压风自负压孔口除尘装置
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1474866A (en) * 1975-11-11 1977-05-25 Hoelter H Apparatus for removing dust from a gaseous current
JP2010116516A (ja) * 2008-11-14 2010-05-27 Ihi Corp エネルギーガス精製方法及びエネルギーガス精製装置
CN104059706A (zh) * 2014-05-28 2014-09-24 郑州光力科技股份有限公司 一种用于瓦斯抽放系统的除水、除尘装置
CN204253095U (zh) * 2014-11-19 2015-04-08 辽宁工程技术大学 一种煤矿瓦斯抽采管路自动排水排渣装置
CN104975867A (zh) * 2015-06-05 2015-10-14 安徽恒源煤电股份有限公司 一种用于煤矿瓦斯抽采管路的过滤抑火系统
CN106968704A (zh) * 2017-04-19 2017-07-21 淮北矿业（集团）有限责任公司 瓦斯抽放管路负压除尘装置
CN109236349A (zh) * 2018-11-14 2019-01-18 寇俊祥 一种煤矿采集用排渣及除尘设备
CN110273704A (zh) * 2019-06-03 2019-09-24 山东科技大学 一种瓦斯抽采管路排水除尘装置

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