CN202073497U - Three-dimensional rotating water jet chambering system for coal bed - Google Patents
Three-dimensional rotating water jet chambering system for coal bed Download PDFInfo
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- CN202073497U CN202073497U CN 201120169253 CN201120169253U CN202073497U CN 202073497 U CN202073497 U CN 202073497U CN 201120169253 CN201120169253 CN 201120169253 CN 201120169253 U CN201120169253 U CN 201120169253U CN 202073497 U CN202073497 U CN 202073497U
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Abstract
The utility model relates to a coal gas extraction and anti-reflection device, in particular to a three-dimensional rotating water jet chambering system for a coal bed, which is connected to a rotation type high-pressure rotating joint through a high-pressure rubber pipe provided with a stop valve by a high-pressure hydraulic pump station. The system is characterized in that the system is connected to a high-pressure water jet drill rod after passing through a drilling machine, the front end of the high-pressure water jet drill rod is connected with a high-pressure water jet sprayer provided with a nozzle base, and a high-pressure rotating water jet nozzle is installed on the nozzle base. Chambering is conducted on a coal bed section subjected to hydraulic chambering and drilling through three-dimensional rotating water jet, dozens of and hundreds of eyelets with the diameter larger than that of the nozzle can be cut by utilizing the nozzle with larger diameter and water flow with lower flowing amount, particularly, and particularly the rotating water jet cuts the coal body by virtue of cutting action, so that the coal crushing effect is improved, generated coal particles are smaller so as to be easy to take out of a drill hole by the water flow and not easy to block the hole, and the high-pressure water jet nozzle is wear-resisting, has long service life, is easy to operate, and has low cost.
Description
Technical field
The utility model relates to the anti-reflection equipment of coal mine gas extraction, particularly a kind of three-dimensional rotation water jet coal seam reaming system.
Background technology
Coal is the main body energy of China, is playing the part of irreplaceable role aspect China's energy resource supply always.But the China's coal-mine disaster is very serious, and gas accident is again the most important thing in the disaster of colliery.State-owned emphasis colliery is high gas or coal and gas outburst mine more than 70%, and major part is a low air permeability coal seam.The China's coal-mine mining depth has on average reached 540m, and annual downward with the speed of 10～15m, makes increasing mine become high gas even coal and gas outburst mine.For coal and gas outburst mine, gas pumping is that control is given prominence to and the essential measure of administering gas, and hole pumping and mining gas is technical feasibility and comparatively economic a kind of pumping method, has obtained using widely.But China overwhelming majority is projecting coal bed to be low air permeability coal seam, has become one of domestic research focus by carrying out extraction again behind coal bed drilling reaming or the slot increase gas permeability of coal seam.Expanding method commonly used at present is except passing through to increase the bit diameter, all the other majorities are that the circular jet that adopts automatic swivel nozzle to produce is realized coal body cutting, this jetting method has shortcomings such as hydraulic losses is big, cutting efficiency is low, deslagging is difficult, the reaming time spent is long, when plug-hole occurring, cause that easily hole internal pressure increase causes spray orifice, exists certain potential safety hazard.
Summary of the invention
In order to overcome the deficiencies in the prior art, a kind of three-dimensional rotation water jet coal seam reaming system is provided, in coal seam reaming of three-dimensional rotation water jet and the anti-reflection method of pressure break, use, reduce hydraulic losses, improve cutting efficiency, realize smooth deslagging and reduce the reaming time spent.
The technical scheme of technical problem to be solved in the utility model is: a kind of three-dimensional rotation water jet coal seam reaming system, it is connected to the swinging chicksan by the high-pressure hydraulic pumping plant by the high-pressure rubber pipe that is provided with stop valve, characteristics are to be connected to the high-pressure water jet drilling rod again through behind the rig, high-pressure water jet drilling rod front end connects the high-pressure water jet shower nozzle that has nozzle base, installs the high pressure rotary water jet nozzle on nozzle base.
Wherein: for having coal and gas outburst danger or the coal seam of boring blowing phenomenon being arranged, establish the sealing of hole steel pipe at waterpower reaming boring open section, between sealing of hole steel pipe and waterpower reaming boring, inject sealing material, and at waterpower reaming drilling orifice installation boring blowout hookup, the extraction termination mine gas extraction system pipeline of boring blowout hookup.
Wherein: several nozzle bases of interlaced arrangement on perpendicular to the direction of high-pressure water jet shower nozzle axis make it in the distribution that is centrosymmetric perpendicular to the projection on the plane of high-pressure water jet shower nozzle axis.
Wherein: the high pressure rotary water jet nozzle of built-in guide vane wheel is installed on the nozzle base, and high pressure rotary water jet nozzle diameter is 1.7～2.5mm.
Wherein: the connection between being connected between being connected between high-pressure water jet shower nozzle and the high-pressure water jet drilling rod, swinging chicksan and the high-pressure water jet drilling rod, the high-pressure water jet drilling rod, all adopt the mode that is tightly connected of built-in crush seal and compound gasket, the swinging chicksan comprises axis of rotation, high-pressure seal ring and the external shell of hollow, and the junction adopts the rotatory sealing mode to seal.
The beneficial effects of the utility model are: adopt the three-dimensional rotation water jet that the coal seam section of waterpower reaming boring is carried out reaming, utilization can cut out the eyelet greater than tens of times to hundreds of times of its nozzle diameters than the nozzle of minor diameter, lower discharge, especially rotating jet mainly relies on shear action that coal body is cut, improved broken coal efficient, the ickings particle that is produced is less, taken out of boring by current easily, be difficult for plug-hole, high-pressure water jet abrasion resistant for spray nozzle, long service life, operation easily, expense is cheap.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described further.Protection domain of the present utility model not only is confined to the statement of following content.
Fig. 1. structural principle schematic diagram of the present utility model;
Fig. 2. the utility model high-pressure water jet nozzle structure schematic diagram;
Fig. 3. the utility model high pressure rotary water jet nozzle and guide vane wheel structural representation;
Fig. 4. the utility model high-pressure water jet jackrod structure schematic diagram.
The specific embodiment:
Accompanying drawing number
1. high-pressure hydraulic pumping plants among the figure, 2. stop valve, 3. swinging chicksan, 4. high-pressure rubber pipe, 5. rig, 6. high-pressure water jet drilling rod, 7. boring blowout hookup, 8. extraction system pipeline, 9. sealing material, 10. coal seam, 11. high-pressure water jet shower nozzles, 12. high pressure rotary water jet nozzles, 13. waterpower reaming boring, 14. the sealing of hole steel pipe, 16. guide vane wheels, 17. nozzle bases.
First embodiment
Referring to Fig. 1,2,3,4, for the coal seam 10 that does not have coal and gas outburst danger and the blowing phenomenon of not holing, a kind of three-dimensional rotation water jet coal seam reaming system, it is connected to swinging chicksan 3 by high-pressure hydraulic pumping plant 1 by the high-pressure rubber pipe 4 that is provided with stop valve 2, characteristics are to be connected to high-pressure water jet drilling rod 6 again through behind the rig 5, high-pressure water jet drilling rod 6 front ends connect the high-pressure water jet shower nozzle 11 that has nozzle base 17, install high pressure rotary water jet nozzle 12 on nozzle base.
Wherein: 2 nozzle bases 17 of interlaced arrangement on perpendicular to the direction of high-pressure water jet shower nozzle 11 axis make it be 180 degree angles perpendicular to the projection on the plane of high-pressure water jet shower nozzle 11 axis.
Wherein: high pressure rotary water jet nozzle 12 diameters are 2.3mm.
Wherein: the connection between being connected between being connected between high-pressure water jet shower nozzle 11 and the high-pressure water jet drilling rod 6, swinging chicksan 3 and the high-pressure water jet drilling rod 6, the high-pressure water jet drilling rod 6, all adopt the mode that is tightly connected of built-in crush seal and compound gasket, swinging chicksan 3 comprises axis of rotation, high-pressure seal ring and the external shell of hollow, and the junction adopts the rotatory sealing mode to seal.
Second embodiment
Referring to Fig. 1,2,3,4, for having coal and gas outburst danger or the coal seam 10 of boring blowing phenomenon being arranged, a kind of three-dimensional rotation water jet coal seam reaming system, it is connected to swinging chicksan 3 by high-pressure hydraulic pumping plant 1 by the high-pressure rubber pipe 4 that is provided with stop valve 2, be connected to high-pressure water jet drilling rod 6 again through behind the rig 5, high-pressure water jet drilling rod 6 front ends connect the high-pressure water jet shower nozzle 11 that has nozzle base 17, install high pressure rotary water jet nozzle 12 on nozzle base 17.
Wherein: 2 nozzle bases 17 of interlaced arrangement on perpendicular to the direction of high-pressure water jet shower nozzle 11 axis make it be 180 degree angles perpendicular to the projection on the plane of high-pressure water jet shower nozzle 11 axis.
Wherein: for having coal and gas outburst danger or the coal seam of boring blowing phenomenon being arranged, establish sealing of hole steel pipe 14 at waterpower reaming 13 open sections of holing, between sealing of hole steel pipe 14 and waterpower reaming boring 13, inject sealing material 9, and boring blowout hookup 7 is installed, the extraction termination mine gas extraction system pipeline 8 of boring blowout hookup 7 in waterpower reaming 13 apertures of holing.
Wherein: the high pressure rotary water jet nozzle 12 of built-in guide vane wheel 16 is installed on the nozzle base 17.High pressure rotary water jet nozzle 12 diameters are 2.0mm.
Wherein: the mode that is tightly connected of built-in crush seal and compound gasket is all adopted in the connection between being connected between being connected between high-pressure water jet shower nozzle 11 and the high-pressure water jet drilling rod 6, swinging chicksan 3 and the high-pressure water jet drilling rod 6, the high-pressure water jet drilling rod 6, swinging chicksan 3 comprises axis of rotation, high-pressure seal ring and the external shell of hollow, and the junction adopts the rotatory sealing mode to seal.
The 3rd embodiment
Referring to Fig. 1,2,3,4, for having coal and gas outburst danger or the coal seam 10 of boring blowing phenomenon being arranged, a kind of three-dimensional rotation water jet coal seam reaming system, it is connected to swinging chicksan 3 by high-pressure hydraulic pumping plant 1 by the high-pressure rubber pipe 4 that is provided with stop valve 2, be connected to high-pressure water jet drilling rod 6 again through behind the rig 5, high-pressure water jet drilling rod 6 front ends connect the high-pressure water jet shower nozzle 11 that has nozzle base 17, install high pressure rotary water jet nozzle 12 on nozzle base 17.
Wherein: 3 nozzle bases 17 of interlaced arrangement on perpendicular to the direction of high-pressure water jet shower nozzle 11 axis make it be 120 degree angles perpendicular to the projection on the plane of high-pressure water jet shower nozzle 11 axis.
Wherein: for having coal and gas outburst danger or the coal seam of boring blowing phenomenon being arranged, establish sealing of hole steel pipe 14 at waterpower reaming 13 open sections of holing, between sealing of hole steel pipe 14 and waterpower reaming boring 13, inject sealing material 9, and boring blowout hookup 7 is installed, the extraction termination mine gas extraction system pipeline 8 of boring blowout hookup 7 in waterpower reaming 13 apertures of holing.
Wherein: the high pressure rotary water jet nozzle 12 of built-in guide vane wheel 16 is installed on the nozzle base 17.High pressure rotary water jet nozzle 12 diameters are 1.8mm.
Wherein: the connection between being connected between being connected between high-pressure water jet shower nozzle 11 and the high-pressure water jet drilling rod 6, swinging chicksan 3 and the high-pressure water jet drilling rod 6, the high-pressure water jet drilling rod 6, all adopt the mode that is tightly connected of built-in crush seal and compound gasket, swinging chicksan 3 comprises axis of rotation, high-pressure seal ring and the external shell of hollow, and the junction adopts the rotatory sealing mode to seal.
Introduce the utility model operating principle for the ease of understanding in conjunction with the 3rd embodiment: Hole 13 to desired location with rig 5 to the 10 construction waterpower reamings of the coal seam of pre-exploitation, withdraw from drilling rod.Establish sealing of hole steel pipe 14 at waterpower reaming 13 open sections of holing, between sealing of hole steel pipe 14 and waterpower reaming boring 13, inject sealing material 9 cement mortar, and at aperture installation boring blowout hookup 7, the extraction termination mine gas extraction system pipeline 8 of boring blowout hookup 7, open the gas pumping system, connect high-pressure rubber pipe 4 with snap joint, and high-pressure rubber pipe 4 is connected to swinging chicksan 3, the other end of swinging chicksan 3 is connected with high-pressure water jet drilling rod 6, the front end of high-pressure water jet drilling rod 6 is installed the high-pressure water jet shower nozzle 11 of having installed high pressure rotary water jet nozzle 12, at the bottom of driving high-pressure water jet drilling rods 6 high-pressure water jet shower nozzle 11 is delivered to the hole with rig 5, start high-pressure hydraulic pumping plant 1, after treating that high-pressure water jet generation systems pressure reaches scheduled pressure value 28MPa, import water under high pressures by high-pressure water jet drilling rod 6 to high-pressure water jet shower nozzle 11, high-pressure water jet drilling rod 6 can bear the high pressure of 50MPa and not reveal, open rig 5, drive 6 rotations of high-pressure water jet drilling rod, high-pressure water jet drilling rod 6 is slowly moved back and forth in waterpower reaming boring 13, utilization pressure is 28MPa in waterpower reaming boring 13, flow is that the water under high pressure of 160L/min carries out reaming by high pressure rotary water jet nozzle 12 generation high-pressure water jets to coal seam 10, ickings flow in the reaming process is 5～25kg/min, bore diameter has expanded 448～1042mm to, average out to 587mm.In waterpower reaming process, come the scope of keyhole reaming section by changing the hole length of 13 inner high voltage water jet drilling rods 6 of waterpower reaming.After the rotating fluid reaming finishes, close the high-pressure water jet generation systems, the removal system pressure is progressively pulled out high-pressure water jet drilling rod 6 by rig 5 drivings, finishes the ream operation of waterpower reaming boring 13.
Claims (7)
1. three-dimensional rotation water jet coal seam reaming system, it is connected to the swinging chicksan by the high-pressure hydraulic pumping plant by the high-pressure rubber pipe that is provided with stop valve, be characterised in that: be connected to the high-pressure water jet drilling rod again through behind the rig, high-pressure water jet drilling rod front end connects the high-pressure water jet shower nozzle that has nozzle base, installs the high pressure rotary water jet nozzle on nozzle base.
2. a kind of three-dimensional rotation water jet according to claim 1 coal seam reaming system, be characterised in that: for having coal and gas outburst danger or the coal seam of boring blowing phenomenon being arranged, establish the sealing of hole steel pipe at waterpower reaming boring open section, between sealing of hole steel pipe and waterpower reaming boring, inject sealing material, and at waterpower reaming drilling orifice installation boring blowout hookup, the extraction termination mine gas extraction system pipeline of boring blowout hookup.
3. a kind of three-dimensional rotation water jet according to claim 1 coal seam reaming system, be characterised in that: several nozzle bases of interlaced arrangement on perpendicular to the direction of high-pressure water jet shower nozzle axis make it in the distribution that is centrosymmetric perpendicular to the projection on the plane of high-pressure water jet shower nozzle axis.
4. a kind of three-dimensional rotation water jet according to claim 1 coal seam reaming system, be characterised in that: the high pressure rotary water jet nozzle of built-in guide vane wheel is installed on the nozzle base, and high pressure rotary water jet nozzle diameter is 1.7～2.5mm.
5. a kind of three-dimensional rotation water jet according to claim 2 coal seam reaming system, be characterised in that: several nozzle bases of interlaced arrangement on perpendicular to the direction of high-pressure water jet shower nozzle axis, make it in the distribution that is centrosymmetric perpendicular to the projection on the plane of high-pressure water jet shower nozzle axis, the high pressure rotary water jet nozzle of built-in guide vane wheel is installed on the nozzle base, and high pressure rotary water jet nozzle diameter is 1.7～2.5mm.
6. a kind of three-dimensional rotation water jet according to claim 3 coal seam reaming system, be characterised in that: the high pressure rotary water jet nozzle of built-in guide vane wheel is installed on the nozzle base, and high pressure rotary water jet nozzle diameter is 1.7～2.5mm.
7. according to claim 1 or 2 or 3 or 4 or 5 or 6 described a kind of three-dimensional rotation water jet coal seam reaming systems, be characterised in that: the mode that is tightly connected of built-in crush seal and compound gasket is all adopted in the connection between being connected between being connected between high pressure rotary water jet shower nozzle and the high-pressure water jet drilling rod, swinging chicksan and the high-pressure water jet drilling rod, the high-pressure water jet drilling rod, the swinging chicksan comprises axis of rotation, high-pressure seal ring and the external shell of hollow, and the junction adopts the rotatory sealing mode to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120169253 CN202073497U (en) | 2011-05-25 | 2011-05-25 | Three-dimensional rotating water jet chambering system for coal bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120169253 CN202073497U (en) | 2011-05-25 | 2011-05-25 | Three-dimensional rotating water jet chambering system for coal bed |
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| Publication Number | Publication Date |
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| CN202073497U true CN202073497U (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120169253 Expired - Lifetime CN202073497U (en) | 2011-05-25 | 2011-05-25 | Three-dimensional rotating water jet chambering system for coal bed |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213077A (en) * | 2011-05-25 | 2011-10-12 | 煤炭科学研究总院沈阳研究院 | Coal seam reaming system using three-dimensional (3D) swirling water jet and reaming and fracturing method for permeability enhancement |
| CN102900429A (en) * | 2012-09-27 | 2013-01-30 | 淮南矿业(集团)有限责任公司 | Device and method for inspecting gas drainage hole tightness |
| CN105134112A (en) * | 2015-09-11 | 2015-12-09 | 重庆大学 | Hole-flushing method for gas extraction drilled hole under coal mine |
| CN105525900A (en) * | 2015-09-11 | 2016-04-27 | 重庆大学 | Composite fracturing and uniform permeability increasing equipment for treelike drilling in coal seam of underground coal mine |
| CN108590691A (en) * | 2018-05-31 | 2018-09-28 | 中国铁建重工集团有限公司 | A kind of development machine and its Water jet sprayer |
| CN110566125A (en) * | 2019-10-18 | 2019-12-13 | 成都睿智达科技有限公司 | Water cutting nozzle, water cutting device and control method thereof |
| CN111810086A (en) * | 2020-06-12 | 2020-10-23 | 煤科集团沈阳研究院有限公司 | Front-end power type hydraulic large-diameter grading cave-making pressure-relief permeability-increasing device and method |
-
2011
- 2011-05-25 CN CN 201120169253 patent/CN202073497U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213077A (en) * | 2011-05-25 | 2011-10-12 | 煤炭科学研究总院沈阳研究院 | Coal seam reaming system using three-dimensional (3D) swirling water jet and reaming and fracturing method for permeability enhancement |
| CN102900429A (en) * | 2012-09-27 | 2013-01-30 | 淮南矿业(集团)有限责任公司 | Device and method for inspecting gas drainage hole tightness |
| CN105134112A (en) * | 2015-09-11 | 2015-12-09 | 重庆大学 | Hole-flushing method for gas extraction drilled hole under coal mine |
| CN105525900A (en) * | 2015-09-11 | 2016-04-27 | 重庆大学 | Composite fracturing and uniform permeability increasing equipment for treelike drilling in coal seam of underground coal mine |
| CN108590691A (en) * | 2018-05-31 | 2018-09-28 | 中国铁建重工集团有限公司 | A kind of development machine and its Water jet sprayer |
| CN110566125A (en) * | 2019-10-18 | 2019-12-13 | 成都睿智达科技有限公司 | Water cutting nozzle, water cutting device and control method thereof |
| CN111810086A (en) * | 2020-06-12 | 2020-10-23 | 煤科集团沈阳研究院有限公司 | Front-end power type hydraulic large-diameter grading cave-making pressure-relief permeability-increasing device and method |
| CN111810086B (en) * | 2020-06-12 | 2022-04-08 | 中煤科工集团沈阳研究院有限公司 | Front-end power type hydraulic large-diameter grading cave-making pressure-relief permeability-increasing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Co., Ltd of Shenyang research institute of Mei Ke group Assignor: Shenyang Institute of China Coal Research Institute Contract record no.: 2014210000080 Denomination of utility model: Coal seam reaming system using three-dimensional (3D) swirling water jet and reaming and fracturing method for permeability enhancement Granted publication date: 20111214 License type: Exclusive License Record date: 20141011 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |