CN102943638B - Water jet cleaning system for large-diameter deep well - Google Patents
Water jet cleaning system for large-diameter deep well Download PDFInfo
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- CN102943638B CN102943638B CN201210346943.0A CN201210346943A CN102943638B CN 102943638 B CN102943638 B CN 102943638B CN 201210346943 A CN201210346943 A CN 201210346943A CN 102943638 B CN102943638 B CN 102943638B
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Abstract
The invention discloses a water jet cleaning method for a large-diameter deep well, and belongs to the technical field of water jet cleaning application. The water jet cleaning method is characterized in that a cleaning manner is determined to be multi-spray-gun rotating water jet cleaning according to structural characteristics of the inner wall of the large-diameter deep well and the attributes of attachments on the well wall; multiple spray guns evenly distributed in the circumferential direction can rotate around the axis of the deep well under the drive of a rotating mechanism, and move in the axial direction of the deep well under the drive of a telescopic mechanism; the cleaning quality and the cleaning effect are observed through a video monitoring method; video monitoring cameras and a driving motor of the telescopic mechanism of a cleaning device are fixed on a worktable; the structural size of the worktable is designed according to the inner diameter of the deep well and a safety requirement; the structure of the worktable is designed according to a strength criterion; a high pressure water pipe in the well and a cable harness get in and out of the deep well via an extending and retracting mechanism; control buttons of the motor and the cameras are integrated in a portable control box; and a high pressure water pump and an electric hoist are independently controlled. The water jet cleaning method disclosed by the invention solves the problem that the large-diameter deep well cannot be automatically cleaned.
Description
Technical field
Large-diameter deep well water jet flow cleaning system, belongs to water jet cleaning applied technical field, relates to major diameter deep-well inwall residue Removal Technology, is related specifically to the water jet Removal Technology of major diameter deep-well inwall residue.
Background technology
Major diameter deep-well is each after hours, and many solid particles all can be had to be attached on deep-well inwall.At present, existing method for cleaning adopts labor cleaning's mode.Because deep-well internal diameter and length are all very large, labor cleaning's Shortcomings, mainly length consuming time, cleaning are not comprehensive.Cleaning by high pressure water jet technology is that the contactless cleaning of major diameter deep-well provides technical foundation.But current major diameter deep-well cleaning there is no water jet cleaning equipment.
Summary of the invention
The invention provides and a kind ofly there is the method adopting water jet to clean it in the major diameter deep-well of drainage system, to solve current major diameter deep-well labor cleaning method length consuming time, to clear up incomplete problem.
The present invention adopts water jet cleaning major diameter deep-well, and the scheme that video monitoring observes cleaning quality is as follows:
(1) according to the material property of inwall attachment after major diameter deep-well interior wall construction feature and work, determine that the cleaning way of major diameter deep-well is the water jet cleaning that many spray guns rotate.
(2) many spray guns of cleaning device adopt planar circumferential uniform layout, and perpendicular to large-diameter deep borehole axis line; The interconnected part of many spray guns is an electronic rotation mechanism, is connected to the telescoping mechanism front end of cleaning device; Standing part and the scavenger station of this telescoping mechanism are connected.
(3) the telescoping mechanism tail end of cleaning device is connected with switching high-pressure water pipe; The other end of switching high-pressure water pipe is connected with well inner high voltage water pipe; The other end of well inner high voltage water pipe is connected by the outer high-pressure water pipe of well inner high voltage water pipe jack and well; The other end of the outer high-pressure water pipe of well is connected with high-pressure hydraulic pump output; The input of high-pressure hydraulic pump is connected on fire hydrant.
(4) well inner high voltage length of pipe is selected according to large-diameter deep well axial length; Well inner high voltage water pipe jack is selected according to well inner high voltage water pipe feature, automatic or manual; The outer high-pressure water pipe length of well is selected according to drop between deep-well mouth distance high-pressure hydraulic pump; The pressure ratio of high-pressure hydraulic pump is selected according to lance outlet pressure and lift.
(5) according to major diameter deep-well inwall feature determination scavenger station external diameter; Consider the projection on deep-well inwall, according to scavenger station external diameter, highly, maximum tilt angle and cleaning device telescoping mechanism maximum extension elongation determination water jet spray gun length.
(6) scavenger station adopts frame construction, and axially divide three layers, top layer connects with workbench suspension rod, and is provided with cleaning quality monitoring camera; The position-limit mechanism of water jet spray gun telescoping mechanism and telescoping mechanism is installed in middle level; Bottom is empty framework, plays a supportive role when depositing.
(7) multiple cleaning quality monitoring camera adopts planar circumferential uniform layout, and each camera all adopts large wide-angle, possesses zoom function and full degree of freedom view finding function.
(8) according to deep-well axial length, control line and the video line length of cleaning quality monitoring camera is determined, and the telescoping mechanism control line of cleaning device and rotating mechanism control line length; At well head place, drawing cable mechanism is set, automatic or manual; All cables have transit cable, to realize connecting in the installation of well head.
(9) according to large-diameter deep borehole axis to size characteristics, select Motor Driven Elevating Calabash scavenger station; Electric block is fixed on the hoisting bracket of well head; Hoisting bracket is fixed on deep-well mouth.
(10) control knob of cleaning quality monitoring camera and video display, cleaning device telescoping mechanism and rotate speed adjusting gear control knob concentrated setting in portable control box; The control of high-pressure hydraulic pump is located at water pump position; The controller of electric block is used alone.
Large-diameter deep well water jet flow cleaning method of the present invention is different from the cleaning method of small size deep-well, solves major diameter deep-well manual cleaning length consuming time and clears up incomplete problem, and the cleaning for major diameter deep-well provides a kind of automation means.
Accompanying drawing explanation
Fig. 1 is workbench and the cleaning device schematic diagram of large-diameter deep well water jet flow cleaning system.
Fig. 2 is large-diameter deep well water jet flow cleaning circuit system and water circuit system schematic diagram, this rubber sheath not shown in FIG..
Fig. 3 is the portable control box control panel schematic diagram of water jet cleaning system.
Fig. 4 is water jet cleaning system workbench top view.
Fig. 5 is water jet cleaning system workbench upward view.
In figure: 1 electric block; 2 rack beams; 3 supports; 4 wireropes; 5 suspension ring; 6 suspension rods; 7 workbench upper strata end frames; 8 rubber sheaths; The longitudinal connecting rod of 9 workbench; 10 workbench middle level end frames; 11 workbench lower floor end frames; 12 spray guns; 13 spray gun mounting discs; 14 cleaning device telescoping mechanisms; The motor of 15 cleaning device telescoping mechanisms and position-limit mechanism; 16 video frequency pick-up heads; 17 camera connecting rods; Maximum projection in 18 deep-wells; 19 deep-well inwalls; 20 drawing cable mechanisms; 21 drawing cable mechanism racks; The outer cable bundle of 22 wells; 23 portable control boxes; 24 can folding and unfolding cable; 25 cable clamp; 26 cable switching devices; 27 transit cables; 28 camera control line and video transmission lines; 29 cleaning device telescoping mechanism Electric Machine Control lines; 30 cleaning device rotating mechanism Electric Machine Control lines; 31 can folding and unfolding high-pressure water pipe; 32 high-pressure water pipe adapters; 33 switching high-pressure water pipe; 34 high-pressure water pipe jacks; 35 high-pressure water pipe jack supports; The outer high-pressure water pipe of 36 wells; 37 high-pressure hydraulic pumps; 38 tap water; 39 portable control box panels; 40 video displays; 41 cleaning device constant speed telescoping mechanism control zones; 42 cleaning device constant speed telescoping mechanism control knobs, above for rising, below for falling; 43 cleaning device constant speed telescoping mechanism lock-button, the above is raised to position locking, below for dropping to position locking; 44 cleaning device rotating mechanism control zones; 45 cleaning device rotating mechanism control knobs, the above turns clockwise, is turn counterclockwise below; 46 cleaning device rotating mechanism rotational speed regulation knobs, clockwise for accelerating, counterclockwise for slowing down; No. 47 camera control zones; 48 video display and control buttons, above for opening, below for closing; 49 camera beginnings, above for opening, below for closing; 50 quickcam image focusing buttons, above for amplifying, below for reducing; 51 cam movement control knobs, above for coming back, below for bowing, the left side is for turning left, and the right side is for turning right; 52 No. two camera control zones; 53 No. three camera control zones; 54 workbench upper strata inner ring; 55 workbench upper strata inner and outer ring connecting rods; 56 workbench middle level inner and outer ring connecting rods; 57 workbench middle level inner ring platforms; The circumferential position-limit mechanism of 58 cleaning device telescoping mechanisms.
Detailed description of the invention
For the water jet cleaning of major diameter deep-well, specific embodiments of the invention are described below in conjunction with technical scheme and accompanying drawing.
1. scavenger station preliminary design
According to maximum protruding 18 minimum diameters determined of major diameter deep-well inwall 19, consider safe distance, design the maximum outside diameter size of scavenger station; According to principle of not toppling in well, consider safety factor, determine the length of the longitudinal connecting rod 9 of workbench, i.e. height of table.
2. the preliminary design of cleaning device
Spray gun 12 length of this maximum outside diameter is less than according to the primary election of scavenger station maximum outside diameter; Select spray gun model according to large-diameter deep well water jet flow cleaning operating pressure, determine spray gun quality; Select the rotating mechanism 13 of cleaning device according to spray gun 12 quantity, determine rotating mechanism 13 quality; According to the telescoping mechanism 14 of spray gun 12 with the quality choice cleaning device of rotating mechanism 13 assembly, determine quality; According to spray gun 12, rotating mechanism 13 and telescoping mechanism 14 assembly, consider the circumferential non rotating of telescoping mechanism 14, select telescoping mechanism motor and position-limit mechanism 15, determine quality; The circumferential position-limit mechanism 58 of cleaning device telescoping mechanism is utilized to limit the circumferential non rotating of telescoping mechanism 14; According to spray gun 12 outlet pressure, consider safety factor, select switching high-pressure water pipe 33 and high-pressure water pipe adapter 32, determine quality; According to the power of rotating mechanism 13 and telescoping mechanism motor 15, select cleaning device telescoping mechanism Electric Machine Control line 29 and cleaning device rotating mechanism Electric Machine Control line 30, determine quality.
3. scavenger station designs further
According to the physical dimension determination scavenger station medial position of cleaning device telescoping mechanism motor.
4. the bamboo product of cleaning device
Regard spray gun during work and workbench as an entirety, when workbench is when major diameter deep-well is tilted, deep-well inwall 19 is contacted for benchmark with lower end frame 11 with upper end frame 7, certain safe distance to be had between spray gun rifle mouth and the borehole wall, consider the maximum extension elongation of telescoping mechanism, according to geometrical relationship design spray gun length.Repeat the 2nd step, design cleaning device further, determine cleaning device gross mass.
5. the design of monitoring arrangement
According to the distance in deep-well maximum inner diameter and camera 16 and the borehole wall, consider the wide-angle of camera 16, determine the data of monitoring camera 16; According to waterproof needs, the needs of varifocal, pitching and rotation, take into account wide-angle performance, select monitoring camera 16 model, determine quality; According to camera quality, consider safety factor design camera connecting rod 17, determine quality; According to camera 16 power and transmission of video needs, select camera control line and video transmission line 28 and cable switching device 26, determine quality; The quality of all cameras and connecting rod, switching cable and adapter is added, obtains the gross mass of monitoring arrangement.
6. scavenger station final design
Consider water resistance requirement, scavenger station selects waterproofing materials manufacture; According to cleaning device gross mass and monitoring arrangement gross mass, using degree criterion carries out table frame structure design; Scavenger station divides three layers, connects therebetween with the longitudinal connecting rod 9 of workbench; Be connected with workbench upper strata inner and outer ring connecting rod 55 between upper strata inner ring 54 with outer shroud 7; Middle level inner ring platform 57 is connected with workbench middle level inner and outer ring connecting rod 56 with between outer shroud 10; According to the demand not scratching deep-well inwall, select the material of rubber sheath 18, design shape and installation site, determine quality; Finally determine scavenger station gross mass.
7. scavenger station suspension rod and suspension ring design
According to the summation of scavenger station gross mass, cleaning device gross mass and monitoring arrangement gross mass, the design form of structure of suspension rod 6, size and and quantity, determine suspension rod gross mass; According to the summation of scavenger station gross mass, cleaning device gross mass, monitoring arrangement gross mass and suspension rod gross mass, form of structure, the size of design suspension ring 5, determine quality.
8. the design of scavenger station lifting gear
According to the summation of scavenger station gross mass, cleaning device gross mass, monitoring arrangement gross mass, suspension rod 6 gross mass and suspension ring 5 quality, select the model of wirerope 4; According to the model of wirerope 4, consider large-diameter deep well axial length, select electric block 1 model, determine quality; Electric block 1 adopts driven by power, controls separately; According to the summation of scavenger station gross mass, cleaning device gross mass, monitoring arrangement gross mass, suspension rod 6 gross mass, suspension ring 5 quality and electric block 1 quality, consider the height of suspension ring 5, suspension rod 6 and workbench assembly, the form of structure of design lifting gear support 3 and size; According to electric block 1 planform design rack beam 2.
9. the design of high-pressure water pipe jack
Select the high-pressure water pipe identical with high-pressure water pipe 33 model of transferring as can folding and unfolding high-pressure water pipe 31; According to large-diameter deep well axial length, selecting can the length of folding and unfolding high-pressure water pipe 31; According to can the length of folding and unfolding high-pressure water pipe 31 and external diameter, the form of structure of design high-pressure water pipe jack 34 and size, and the form of structure of high-pressure water pipe jack support 35 and size; The type of drive of high-pressure water pipe jack 34 adopts electronic and manual two kinds of modes.
10. the selection of high-pressure hydraulic pump
Select the high-pressure water pipe identical with switching high-pressure water pipe 33 model as the outer high-pressure water pipe 36 of well; According to lift and inlet pressure ratio, select high-pressure hydraulic pump 37; Because water supply volume is large, high-pressure hydraulic pump entrance connects the tap water 38 of fire hydrant; High-pressure hydraulic pump 37 adopts centrifugal pump or plunger displacement pump, determines the form of high-pressure hydraulic pump according to the actual requirements; High-pressure hydraulic pump adopts driven by power, controls separately.
The design of 11. drawing cable mechanisms
Camera control line and video transmission line 28, cleaning device telescoping mechanism Electric Machine Control line 29 and cleaning device rotating mechanism Electric Machine Control line 30 composition switching cable 27; Select with the identical cable of cable 27 of transferring as can folding and unfolding cable 24; According to large-diameter deep well axial length, selecting can the length of folding and unfolding cable 24; According to can the length of folding and unfolding cable 24 and external diameter, the form of structure of design cable jack 20 and size, and the form of structure of drawing cable mechanism rack 21 and size; The type of drive of drawing cable mechanism 20 can adopt electronic also can employing manually.
The design of the outer cable bundle of 12. wells
Consider from easy to operate and security standpoint, select model and the length of the outer cable bundle 22 of well.
The design of 13. portable control boxes
By cleaning device rotating mechanism 13 and the control of telescoping mechanism 14 and the control knob of camera 16, and video display is all integrated in portable control box; Portable control box panel 39 mainly divides three pieces, and the upper left corner is video display 40, and the lower left corner is cleaning device control zone, and right side is video monitor camera control zone; Cleaning device control zone comprises cleaning device constant speed telescoping mechanism control zone 41 and cleaning device rotating mechanism control zone 44; Cleaning device constant speed telescoping mechanism control zone 41 comprises cleaning device constant speed telescoping mechanism control knob 42 (above for rising, below for falling) and cleaning device constant speed telescoping mechanism lock-button 43 (being be raised to position locking above, below for dropping to position locking); It (is turn clockwise above that cleaning device rotating mechanism control zone 44 comprises cleaning device rotating mechanism control knob 45, be turn counterclockwise below) and cleaning device rotating mechanism rotational speed regulation knob 46 (clockwise for accelerating, counterclockwise for slowing down); The function control knob that video monitor camera control zone comprises 53, three control zones in camera control zone 52, No. 47, two, a camera control zone and No. three camera control zones is identical; Be described for a camera control zone 47, this control zone comprises video display and control button 48 (above for opening, below for closing), camera beginning is 49 (above for opening, below for closing), quickcam image focusing button 50 is (above for amplifying, below for reducing) and cam movement control knob 51 (above for coming back, below for bowing, the left side is for turning left, and the right side is for turning right).
Claims (1)
1. a large-diameter deep well water jet flow cleaning system, is characterized in that:
1) according to the material property of inwall attachment after major diameter deep-well interior wall construction feature and work, determine that the cleaning way of major diameter deep-well is the cleaning of many spray guns rotating fluid;
2) many spray guns of cleaning device adopt planar circumferential uniform layout, and perpendicular to large-diameter deep borehole axis line; The interconnected part of many spray guns is an electronic rotation mechanism, is connected to the telescoping mechanism front end of cleaning device; Standing part and the scavenger station of this telescoping mechanism are connected;
3) the telescoping mechanism tail end of cleaning device is connected with switching high-pressure water pipe; The other end of switching high-pressure water pipe is connected with well inner high voltage water pipe; The other end of well inner high voltage water pipe is connected by the outer high-pressure water pipe of well inner high voltage water pipe jack and well; The other end of the outer high-pressure water pipe of well is connected with high-pressure hydraulic pump output; The input of high-pressure hydraulic pump is connected on fire hydrant;
4) well inner high voltage length of pipe is selected according to large-diameter deep well axial length; Well inner high voltage water pipe jack is selected according to well inner high voltage water pipe feature, automatic or manual; The outer high-pressure water pipe length of well is selected according to drop between deep-well mouth distance high-pressure hydraulic pump; The pressure ratio of high-pressure hydraulic pump is selected according to lance outlet pressure and lift;
5) according to major diameter deep-well inwall feature determination scavenger station external diameter; Consider the protruding situation on deep-well inwall, according to scavenger station external diameter, highly, maximum tilt angle and cleaning device telescoping mechanism maximum extension elongation determination water jet spray gun length;
6) scavenger station adopts frame construction, and axially divide three layers, top layer connects with workbench suspension rod, and is provided with cleaning quality monitoring camera; The position-limit mechanism of cleaning device telescoping mechanism and telescoping mechanism is installed in middle level; Bottom is empty framework, plays a supportive role when depositing;
7) multiple cleaning quality monitoring camera adopts planar circumferential uniform layout, and each camera all adopts large wide-angle, possesses remote zoom control function and full degree of freedom view finding function simultaneously;
8) according to deep-well axial length, control line and the video line length of cleaning quality monitoring camera is determined, and the telescoping mechanism control line of cleaning device and rotating mechanism control line length; Drawing cable mechanism is set at well head place, is provided with automatic or manual working method; All cables have transit cable, to realize connecting in the installation of well head;
9) according to large-diameter deep borehole axis to size characteristics, select Motor Driven Elevating Calabash scavenger station; Electric block is fixed on the hoisting bracket crossbeam of well head; Hoisting bracket is fixed on deep-well mouth;
10) control knob of cleaning quality monitoring camera and video display, cleaning device telescoping mechanism and rotate speed adjusting gear control knob concentrated setting in portable control box; The control of high-pressure hydraulic pump is located at water pump position; The controller of electric block is used alone.
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CN201210346943.0A CN102943638B (en) | 2012-09-07 | 2012-09-07 | Water jet cleaning system for large-diameter deep well |
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CN201210346943.0A CN102943638B (en) | 2012-09-07 | 2012-09-07 | Water jet cleaning system for large-diameter deep well |
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CN102943638B true CN102943638B (en) | 2015-03-25 |
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CA2948680A1 (en) * | 2014-05-12 | 2015-11-19 | Dale Parker | Downhole tool |
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CN110700778B (en) * | 2019-10-29 | 2020-11-17 | 中国矿业大学 | Hole cleaning device of drilling peeping instrument |
CN114215475B (en) * | 2022-02-21 | 2022-09-13 | 徐州工程学院 | Deep well drilling machine containing sewage treatment and air injection device efficiency model thereof |
CN116607896B (en) * | 2023-07-20 | 2023-10-10 | 陕西中煤新能源有限公司 | Well flushing device for water source heat pump |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4299282A (en) * | 1980-03-25 | 1981-11-10 | Thornton J W | Well cleaner |
US4349073A (en) * | 1980-10-07 | 1982-09-14 | Casper M. Zublin | Hydraulic jet well cleaning |
CN1623040A (en) * | 2002-03-11 | 2005-06-01 | 吉诺维·德米特利耶维奇·哈米涅茨 | Method for operating a well jet device during ultrasonic cleaning of the downhole area of a productive formation and device for carrying out said method |
US7011158B2 (en) * | 2003-09-05 | 2006-03-14 | Jerry Wayne Noles, Jr., legal representative | Method and apparatus for well bore cleaning |
CN1975097A (en) * | 2006-12-09 | 2007-06-06 | 中国石化股份胜利油田分公司孤岛采油厂 | Inner pipe water pressure pulse flushing device |
CN201386522Y (en) * | 2009-04-20 | 2010-01-20 | 大庆玖兴技术服务有限公司 | Self-advancing high-pressure cavitating jet washing device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070261855A1 (en) * | 2006-05-12 | 2007-11-15 | Travis Brunet | Wellbore cleaning tool system and method of use |
-
2012
- 2012-09-07 CN CN201210346943.0A patent/CN102943638B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4299282A (en) * | 1980-03-25 | 1981-11-10 | Thornton J W | Well cleaner |
US4349073A (en) * | 1980-10-07 | 1982-09-14 | Casper M. Zublin | Hydraulic jet well cleaning |
CN1623040A (en) * | 2002-03-11 | 2005-06-01 | 吉诺维·德米特利耶维奇·哈米涅茨 | Method for operating a well jet device during ultrasonic cleaning of the downhole area of a productive formation and device for carrying out said method |
US7011158B2 (en) * | 2003-09-05 | 2006-03-14 | Jerry Wayne Noles, Jr., legal representative | Method and apparatus for well bore cleaning |
CN1975097A (en) * | 2006-12-09 | 2007-06-06 | 中国石化股份胜利油田分公司孤岛采油厂 | Inner pipe water pressure pulse flushing device |
CN201386522Y (en) * | 2009-04-20 | 2010-01-20 | 大庆玖兴技术服务有限公司 | Self-advancing high-pressure cavitating jet washing device |
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