CN110159552B - Downward gas extraction drill hole spiral type drainage device and method - Google Patents
Downward gas extraction drill hole spiral type drainage device and method Download PDFInfo
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- CN110159552B CN110159552B CN201910474473.8A CN201910474473A CN110159552B CN 110159552 B CN110159552 B CN 110159552B CN 201910474473 A CN201910474473 A CN 201910474473A CN 110159552 B CN110159552 B CN 110159552B
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- 238000000605 extraction Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003245 coal Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004047 hole gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/04—Helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention provides a downward gas extraction drilling spiral drainage device and a method, which relate to the technical field of gas extraction and comprise a rotating member, an explosion-proof power device, a connecting member and a water collecting tank, wherein the rotating member comprises a plurality of sections, each section comprises an outer pipe and an inner spiral pipe, the explosion-proof power device drives the inner spiral pipe to rotate, a spiral drill rod structure is arranged in the inner spiral pipe, a deep groove ball bearing is arranged between the inner spiral pipe and the outer pipe, and the inner spiral pipe rotates in the outer pipe; the connecting member comprises a sleeve and an inner nut, the outer pipe is in threaded connection through the connecting sleeve between the sections of the rotating member, the inner spiral pipe is connected through the inner nut, the water collecting tank is connected with the outer pipe end at the orifice position of the drill hole, a water outlet is formed in the water collecting tank for water drainage, and the method for performing gas extraction drill hole water drainage by using the device is also disclosed. The device and the method solve the technical problem that the gas extraction drill hole with large downward length is difficult to drain water, and have the advantages of convenience in operation, good drainage effect and the like.
Description
Technical Field
The invention relates to the technical field of gas extraction, in particular to a device for performing spiral drainage on a downward gas extraction drill hole with a large length and a method for performing drainage on the downward gas extraction drill hole by using the device.
Background
Along with the increase of the mining depth of the coal bed, the gas pressure and the gas content of the coal bed are gradually increased, the gas disaster is more serious, and the safe and efficient development of a mine is threatened; meanwhile, the gas is used as a clean resource, so that the industrial output significance is great, and the purposes of high efficiency, energy conservation and emission reduction are achieved. Around underground gas disasters, a mine establishes a twelve-character gas treatment policy of 'pumping first and then mining, monitoring and controlling, and setting production with wind'; at present, coal bed gas extraction is implemented in underground coal and gas outburst and high gas mines. However, in the process of downward gas extraction drilling construction, due to the existence of a hydraulic slag removal process or a water-bearing stratum, a large amount of water is often accumulated in the hole, a gas migration channel is blocked, extraction resistance is increased, and a gas extraction effect is poor. At present, a compressed air drainage measure is generally adopted for solving the problem of water accumulation in a downward gas extraction drill hole, but the drainage depth of the measure is limited, and deep hole drainage cannot be realized. In order to realize long-distance drainage of a downward gas extraction borehole, the conventional gas extraction borehole drainage device and drainage method need to be further improved.
Disclosure of Invention
In order to solve the technical problem that long-distance drainage of a downward gas extraction drill hole is difficult, improve the drainage effect and simplify the drainage construction steps, the invention provides a downward gas extraction drill hole spiral drainage device and a method, and the specific technical scheme is as follows:
a downward gas extraction drilling spiral drainage device comprises a rotating component, an explosion-proof power device, a connecting component and a water collection tank; the rotating component comprises a plurality of sections, each section comprises an outer pipe and an inner spiral pipe, a spiral drill rod structure is arranged in each inner spiral pipe, a deep groove ball bearing is arranged between each inner spiral pipe and the outer pipe, and each inner spiral pipe rotates in the outer pipe; the explosion-proof power device drives the inner spiral pipe to rotate; the connecting member comprises a sleeve and an inner nut, the outer pipe between the sections of the rotating member is in threaded connection through the connecting sleeve, the inner spiral pipe is connected through the inner nut, and the water collecting tank is connected with the end part of the outer pipe at the position of the drilling hole.
Preferably, the explosion-proof power device is connected with a drill rod joint, and the drill rod joint is fixedly connected with the spiral drill rod on the axis of the inner spiral pipe of the orifice section through thermal bonding.
Preferably, the inner spiral pipe is a tubular structure, an auger structure is arranged inside the inner spiral pipe, and a thread sheet of the auger structure is fixed with the inner pipe wall of the inner spiral pipe.
It is further preferred that the auger stem is disposed on the axis of the inner helical tube; and external threads are arranged at two ends of each section of the inner spiral pipe.
Preferably, the two ends of the auger stem are respectively provided with a groove and a protrusion, and the auger stems of the segments are inserted and matched with the grooves and the protrusions.
It is further preferred that the groove and the projection are unidirectionally matched, the cross-sectional shapes of the projection and the groove are positively opposed in a single direction, and the thread pieces of the auger structure are continuous between the sections.
It is also preferable that an opening at the upper part of the water collection tank penetrates through the drill rod joint, the lower part of the water collection tank is connected with the outer pipe through a bolt, a water outlet is arranged at the edge of the bottom of the water collection tank, and a water drainage pipe is connected to the water outlet to drain water.
It is also preferred that the outer pipe end of the bore bottom section of the rotary member is provided with a sieve; the explosion-proof power device comprises an explosion-proof motor, and is fixed through a support.
A downward gas extraction drill hole spiral type drainage method utilizes the downward gas extraction drill hole spiral type drainage device, and comprises the following steps:
step A, connecting all the sections of the rotating member, and after the connecting members are connected, putting the sections into the gas extraction drill hole section by section;
b, arranging a water collecting tank at the orifice position and connecting the water collecting tank with an explosion-proof power device;
c, driving the inner spiral pipe to rotate at a high speed by the explosion-proof power device, and allowing water at the bottom of the hole to enter the water collecting tank under the action of centrifugal force;
and D, segmented disassembly is performed after the water drainage is finished.
The beneficial effects of the invention include:
(1) according to the spiral drainage device for the downward gas extraction drill hole, the multi-end inner spiral pipe is arranged, the explosion-proof power device is used for driving the spiral pipe to rotate so as to discharge water in the deep hole, and the defects of high cost and limited drainage distance in the traditional drainage method are effectively overcome. A new technical idea is provided for downward gas extraction deep hole drainage, the means of downward gas extraction deep hole drainage is enriched, the problem of poor gas extraction effect after water is accumulated in a downward drill hole is solved through drainage, and the downward drill hole gas extraction efficiency is improved.
(2) The outer pipe of the device is in threaded connection through a connecting sleeve, and the inner spiral pipe is connected through an inner nut, so that the tight connection of the brackets of all the rotating members is ensured; a deep groove ball bearing is arranged between the inner spiral pipe and the outer pipe, so that the high-speed rotation of the inner spiral pipe can be ensured; both ends of the auger stem are respectively provided with a groove and a protrusion, so that each rotating component can be quickly connected and segmented, and the grooves and the protrusions are opposite positively along a single direction, so that the continuity of threads is ensured.
(3) According to the method, the inner spiral pipe is rotated at a high speed, so that water at the bottom of the drilled hole is discharged out of the hole under the action of centrifugal force, the method can meet the requirements of explosion prevention, improvement of drainage depth, labor saving in operation and the like while reducing the labor intensity of workers, and the device and the using method can improve the effect of deep hole drainage in a coal mine.
Drawings
FIG. 1 is a cross-sectional view of a downward gas extraction borehole spiral drainage device along a borehole direction;
FIG. 2 is a schematic cross-sectional structure view of a downward gas extraction drill hole spiral drainage device;
FIG. 3 is a diagram of: the deep hole drainage device of the invention has an inner pipe connection front view;
in the figure: 1-explosion-proof power device, 2-drill rod joint, 3-bracket, 4-water collecting tank, 5-screw, 6-water outlet, 7-water outlet pipe, 8-inner spiral pipe, 9-outer pipe, 10-connecting sleeve, 11-outer pipe nut, 12-spiral drill rod, 13-deep groove ball bearing, 14-filter screen, 15-bulge, 16-external thread, 17-groove, 18-internal nut and 19-sealing rubber ring.
Detailed Description
Referring to fig. 1 to 3, the present invention provides a spiral drainage device and method for downward gas extraction borehole,
the utility model provides a spiral drainage device of gas drainage drilling downwards, the device specifically includes rotating member, explosion-proof power device, connecting elements and header tank, and the rotating member setting is used for the drilling drainage in the gas drainage drilling, and explosion-proof power device provides power for rotating member's rotation, and connecting elements are used for the connection between each segmentation, and the header tank makes things convenient for the drainage of drilling water. The rotating member specifically comprises a plurality of segments, each segment comprises an outer tube 9 and an inner spiral tube 8, a spiral drill rod 12 structure is arranged in each inner spiral tube 8, and a deep groove ball bearing 13 is arranged between each inner spiral tube 8 and the outer tube 9, so that the inner spiral tubes 8 can rotate in the outer tubes 9 conveniently. The explosion-proof power device 1 drives the inner spiral pipe to rotate, the connecting member comprises a connecting sleeve 10 and an inner nut 18, the outer pipe between the segments of the rotating member is connected through the threads on the connecting sleeve 10, the inner spiral pipe 8 is connected through the threads on the inner nut 18, and the water collecting tank 4 is connected with the end part of the outer pipe at the position of the drill hole opening. The device effectively avoids the defects of high cost and limited drainage distance in the traditional drainage method by arranging the multi-end internal spiral pipe and driving the anti-explosion power device to rotate to discharge water in the deep hole. A new technical idea is provided for downward gas extraction deep hole drainage, the means of downward gas extraction deep hole drainage is enriched, the problem of poor gas extraction effect after water is accumulated in a downward drill hole is solved through drainage, and the downward drill hole gas extraction efficiency is improved.
The explosion-proof power device 1 is connected with the drill rod joint 2, the main structure of the explosion-proof power device 1 is a mining explosion-proof motor which drives a drill rod structure to rotate, and the explosion-proof power device 1 is connected and fixed with a spiral drill rod 12 on the axis of an inner spiral pipe 8 of the orifice section through the drill rod joint 2 through heat bonding, so that the whole inner spiral pipe 8 is driven by the explosion-proof power device 1 to rotate at a high speed in an outer pipe 9. The explosion-proof power device 1 comprises an explosion-proof motor, and the explosion-proof power device 1 is fixed through a support 3. The outer pipe end of the bore bottom section of the swivel member may be provided with a screen 14 to better prevent clogging of the drill holes. An opening at the upper part of the water collecting tank 4 penetrates through the drill rod joint 2, the lower part of the water collecting tank 4 is connected with an outer pipe 9 through a bolt, a water outlet is arranged at the edge of the bottom of the water collecting tank 4, and a water discharging pipe 7 is connected to the water outlet 6 to discharge water.
The inner spiral pipe 8 is a tubular structure, an auger stem 12 structure is arranged inside the tubular structure, and a thread sheet of the auger stem 12 structure is fixed with the inner wall of the inner spiral pipe, wherein the width and the spiral angle of the thread sheet are set according to the specific rotating speed and the specific water discharge. In addition, the thread plate can be provided with a bulge which is upward along the spiral direction, and the bulge structure can drive water in the inner spiral pipe to better rise along the spiral under the action of centrifugal force. The auger stem 12 may be disposed on the axis of the inner helical tube 8, or may be eccentrically disposed by corresponding modification according to the downward inclination angle of the drilled hole, and the two ends of each section of the inner helical tube 8 are provided with external threads 16 for fixed connection. In addition, rubber sealing rings 19 can be arranged at two ends of the external thread 16, so that the connection effectiveness is guaranteed, the sealing performance is guaranteed, and water is drained better. The two ends of the auger stem 12 are respectively provided with a groove 17 and a protrusion 15, so that the structure can be conveniently inserted, and the auger stems of each segment can be inserted and matched with the protrusion 15 through the groove 17. The groove 17 and the protrusion 15 can be matched in a one-way mode, namely the groove 17 and the protrusion 15 can be matched in an inserting mode only in one direction, the cross section shapes of the protrusion 15 and the groove 17 are opposite to each other along the positive direction of the single direction, the cross section shapes are not centrosymmetric, and therefore the continuity of the thread pieces of the structure of the spiral drill rod 12 among the sections is guaranteed.
A downward gas extraction drill hole spiral type drainage method utilizes the downward gas extraction drill hole spiral type drainage device, and comprises the following steps:
step A, arranging a filter screen 14 at the end part of an outer pipe of a hole bottom subsection, and then sequentially connecting all subsections of a rotating member, wherein an inner spiral pipe 8 is connected through threads on an inner nut 18, an outer pipe 9 is connected and fixed through threads on a sleeve, and after the connecting member is connected, the inner spiral pipe is put into a gas extraction drill hole section by section; the drill hole can be arranged in a section by section, so that the complicated steps of using a long pipe are simplified, and the transportation and the installation are more convenient.
And step B, arranging a water collecting tank 4 at the position of the orifice, wherein the orifice and the water collecting tank 4 can be connected through screws 5, the regulation is carried out according to the specific orifice segment length, the explosion-proof power device 1 is connected, and the starting motor is debugged.
And step C, the explosion-proof power device 1 drives the inner spiral pipe 8 to rotate at a high speed, water at the bottom of the hole enters the water collecting tank 4 under the action of centrifugal force, and the water collecting tank 4 discharges the water from the water discharging pipe to a roadway drainage ditch through water discharging.
And D, after the water drainage is finished, taking the device out of the gas extraction drill hole, and dismantling the device in sections.
According to the deep hole drainage device, the end part of the inner spiral pipe is provided with the outer screw 16, a triangular groove 17 except an equilateral triangle can be formed, the inner spiral pipe nut 18 and the sealing ring 19 guarantee sealing, the drill rod joint 2 and the inner spiral pipe 8 are vertically arranged inside the device, the drill rod joint 2 and the inner spiral pipe 8 of the hole section are fixed in a heat bonding mode, the inner spiral drill rod 12 in the inner spiral pipe 8 is driven to rotate at a high speed under the rotation of the explosion-proof power device 1, and water at the bottom of the inner spiral pipe 8 is lifted upwards through the spiral channel under the action of centrifugal force. When each section of device is connected, firstly, the bulge 15 of the drill rod is inserted into the groove 17 of the next section of drill rod, the continuity of the threads of the spiral drill rod 12 is ensured, the inner spiral pipe nut 18 is screwed with the outer thread 16 at the end part of the inner spiral pipe through the sealing ring 19, the screwing directions of the outer thread 16 at the end part of the inner spiral pipe and the inner thread of the inner spiral pipe nut 18 are opposite to the turning direction of the inner spiral pipe 8, so that the connection is more tight, the outer pipe 9 is screwed with the outer pipe nut 11 through the outer pipe outer thread 10, and the section-section connection of the outer pipe 9 is realized. Each section of pipe fitting is provided with a deep groove ball bearing 13 for connecting the inner spiral pipe 8 and the outer pipe 9 so as to reduce the friction between the inner spiral pipe 8 and the fixed outer pipe 9 when the inner spiral pipe 8 rotates at high speed. An opening at the upper end of the water collecting tank 4 penetrates through the drill rod joint 2, the lower end of the water collecting tank is in threaded connection with the outer pipe 9, the water collecting tank 4 collects deep-hole water which is discharged by the rotation of the inner spiral pipe 8, and the deep-hole water is drained to a drainage ditch at the bottom of the roadway through a drainage port 6 and a drainage pipe 7 which are arranged at the edge of the bottom of the water collecting tank 4. The upper end opening part and the lower end opening part are polished smoothly, friction between the upper end opening part and the drill rod joint 2 and the inner spiral pipe 8 is reduced, and an iron wire filter screen 14 is arranged at the bottom of the outer pipe 9 and used for filtering coal particles in the deep hole.
According to the method, the inner spiral pipe is rotated at a high speed, so that water at the bottom of the drilled hole is discharged out of the hole under the action of centrifugal force, the method can meet the requirements of explosion prevention, improvement of drainage depth, labor saving in operation and the like while reducing the labor intensity of workers, and the device and the using method can improve the effect of deep hole drainage in a coal mine.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (4)
1. A downward gas extraction drilling spiral drainage device is characterized by comprising a rotating component, an explosion-proof power device, a connecting component and a water collecting tank; the rotary component comprises a plurality of sections, each section comprises an outer pipe and an inner spiral pipe, a spiral drill rod structure is arranged in each inner spiral pipe, a deep groove ball bearing is arranged between each inner spiral pipe and the outer pipe, and each inner spiral pipe rotates in the outer pipe; the explosion-proof power device drives the inner spiral pipe to rotate; the connecting member comprises a sleeve and an inner nut, the outer pipe between the sections of the rotating member is in threaded connection through the connecting sleeve, the inner spiral pipe is connected through the inner nut, and the water collecting tank is connected with the end part of the outer pipe at the position of the drilling hole; the explosion-proof power device is connected with a drill rod joint, and the drill rod joint is connected and fixed with a spiral drill rod on the axis of the inner spiral pipe of the orifice section through thermal bonding; the inner spiral pipe is of a tubular structure, a spiral drill rod structure is arranged in the inner spiral pipe, and a thread piece of the spiral drill rod structure is fixed with the inner pipe wall of the inner spiral pipe; the spiral drill rod is arranged on the axis of the inner spiral pipe; external threads are arranged at two ends of each section of the inner spiral pipe; grooves and bulges are respectively arranged at two ends of the spiral drill rod, and each segmented spiral drill rod is installed in a matched manner through the grooves and the bulges in an inserted manner; the groove and the bulge are matched in a one-way mode, the cross sections of the bulge and the groove are opposite in the positive direction along a single direction, and the thread pieces of the spiral drill rod structure between the sections are continuous.
2. The spiral drainage device for downward gas extraction drill holes according to claim 1, wherein an opening in the upper portion of the water collection tank penetrates through a drill rod joint, the lower portion of the water collection tank is connected with the outer pipe through a bolt, a drainage port is formed in the edge of the bottom of the water collection tank, and a drainage pipe is connected to the drainage port to drain water.
3. The spiral drainage device for a downward gas extraction borehole according to claim 1, wherein a filter screen is arranged at an end portion of an outer pipe of a hole bottom section of the rotary member; the explosion-proof power device comprises an explosion-proof motor, and is fixed through a support.
4. A downward gas extraction drill hole spiral drainage method which utilizes the downward gas extraction drill hole spiral drainage device of any one of claims 1 to 3 and is characterized by comprising the following steps:
step A, connecting all the sections of the rotating member, and after the connecting members are connected, putting the sections into the gas extraction drill hole section by section;
b, arranging a water collecting tank at the orifice position and connecting the water collecting tank with an explosion-proof power device;
c, driving the inner spiral pipe to rotate at a high speed by the explosion-proof power device, and allowing water at the bottom of the hole to enter the water collecting tank under the action of centrifugal force;
and D, segmented disassembly is performed after the water drainage is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474473.8A CN110159552B (en) | 2019-06-03 | 2019-06-03 | Downward gas extraction drill hole spiral type drainage device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474473.8A CN110159552B (en) | 2019-06-03 | 2019-06-03 | Downward gas extraction drill hole spiral type drainage device and method |
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| Publication Number | Publication Date |
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| CN110159552A CN110159552A (en) | 2019-08-23 |
| CN110159552B true CN110159552B (en) | 2020-12-11 |
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| CN201910474473.8A Active CN110159552B (en) | 2019-06-03 | 2019-06-03 | Downward gas extraction drill hole spiral type drainage device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110630323B (en) * | 2019-09-12 | 2021-02-12 | 泗县微腾知识产权运营有限公司 | High-efficient mine big gun hole drainage equipment |
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| CN2180808Y (en) * | 1993-11-15 | 1994-10-26 | 赵贵 | High-quality screw pump without hub |
| WO2004061311A1 (en) * | 2002-09-27 | 2004-07-22 | Nizetic, Tomislav | Rotating spyral pump with progressive thread step |
| CN101832273A (en) * | 2010-05-11 | 2010-09-15 | 辽宁广联机械科技有限公司 | Closed shaftless screw pump |
| CN104121201A (en) * | 2013-04-25 | 2014-10-29 | 北京化工大学 | Series connection combined labyrinth screw pump |
| CN105464998A (en) * | 2015-12-24 | 2016-04-06 | 苏州经贸职业技术学院 | Spiral elevating combined type agricultural water pump |
| CN105697053A (en) * | 2016-02-26 | 2016-06-22 | 安徽理工大学 | Pumping and pressing hybrid gas extraction downward drilling and water draining device |
| CN108757478A (en) * | 2018-05-29 | 2018-11-06 | 北京恒信卓元科技有限公司 | The helicoidal pump of more casing splicings |
-
2019
- 2019-06-03 CN CN201910474473.8A patent/CN110159552B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180808Y (en) * | 1993-11-15 | 1994-10-26 | 赵贵 | High-quality screw pump without hub |
| WO2004061311A1 (en) * | 2002-09-27 | 2004-07-22 | Nizetic, Tomislav | Rotating spyral pump with progressive thread step |
| CN101832273A (en) * | 2010-05-11 | 2010-09-15 | 辽宁广联机械科技有限公司 | Closed shaftless screw pump |
| CN104121201A (en) * | 2013-04-25 | 2014-10-29 | 北京化工大学 | Series connection combined labyrinth screw pump |
| CN105464998A (en) * | 2015-12-24 | 2016-04-06 | 苏州经贸职业技术学院 | Spiral elevating combined type agricultural water pump |
| CN105697053A (en) * | 2016-02-26 | 2016-06-22 | 安徽理工大学 | Pumping and pressing hybrid gas extraction downward drilling and water draining device |
| CN108757478A (en) * | 2018-05-29 | 2018-11-06 | 北京恒信卓元科技有限公司 | The helicoidal pump of more casing splicings |
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| CN110159552A (en) | 2019-08-23 |
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