CN1959058A - Boring system of rotary dual jet flows under high pressure, and rotary dual jet flows nozzle under high pressure - Google Patents
Boring system of rotary dual jet flows under high pressure, and rotary dual jet flows nozzle under high pressure Download PDFInfo
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- CN1959058A CN1959058A CN 200510117352 CN200510117352A CN1959058A CN 1959058 A CN1959058 A CN 1959058A CN 200510117352 CN200510117352 CN 200510117352 CN 200510117352 A CN200510117352 A CN 200510117352A CN 1959058 A CN1959058 A CN 1959058A
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Abstract
The present invention relates to a high-pressure rotary double-jet drilling method. It is characterized by simultaneously using rotary jetting method and straight jetting method. Said rotary jetting method can form large energy transfer area zone in targent zone and the straight jetting method can partially form energy transfer area zone in the centre of target zone, the rotary jetting method and straight jetting method are formed into a mutual shearing relationship, the mutual shear of the above-mentioned two jetting methods can produce cavitation action. The high-pressure rotary double-jet nozzle used for said method includes external nozzle and internal nozzle; said internal nozzle is placed in the external nozzle interior. Said invention can make straight jetting method and rotary jetting method be combined together so as to raise utilization efficiency of jetting energy and can drill metal or high-strength non-metal material.
Description
Technical field
The present invention relates to a kind of boring method and drill bit thereof, particularly high pressure rotary dual-jet boring method and the high pressure rotary dual-jet nozzle thereof that forms with direct projection stream and rotating jet.Method of the present invention and nozzle are specially adapted to the fragmentation of rock.
Background technology
In production reality, the high-pressure spray breaking technique for rock is as a kind of new and effective broken rock means, be used widely and study, be that people study and the target that thoroughly solves but seek a kind of jetting method that the big degree of depth can bore the major diameter eyelet again and equipment of can boring always.Use at present more widely pattern and mainly comprise two kinds of direct projection stream and rotating jets, wherein direct projection stream has bigger energy and transmits distance, and main broken rock mode is an impact grinding, can form the big but less broken duct, aperture of the degree of depth; Rotating jet then has bigger energy and transmits distance, and mode of failure is a shear failure, can reduce brokenly rock thresholding pressure greatly and form larger area catalase, but its broken rock degree of depth is less, and the rock of locating in the rotating jet axle center can not be removed because lacking jet impulse, can form projection in bottom, catalase duct, and influence rock breaking efficiency.
At above-mentioned two class modes, solution commonly used is to adopt jet rose jet or mechanical rotary nozzle jet.It is jet rose that the jet rose jet promptly changes single-hole nozzle, utilize a plurality of nozzles to enlarge the impact area of jet energy, but this method need improve greatly jet flow and also since crumbling method still for impact grinding, so the jet energy utilization efficiency is lower.Machinery rotary nozzle jet is to utilize waterpower or mechanical energy to drive whole shower nozzle rotation, thereby the multiinjector that distributes on drive shower nozzle rotation, this method for rotative driving exists rotatory sealing resistance and life problems, need to consume a part of jet energy and power, the jet energy utilization efficiency is also lower.
Because the defective that above-mentioned known technology exists, the inventor at above-mentioned existing problems, proposes high pressure rotary dual-jet boring method of the present invention and bit nozzle thereof according to the experience of the practice of being engaged in the pipeline ring hollow cleaning aspect for many years and research and development.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of high pressure rotary dual-jet boring method and bit nozzle thereof, can overcome defective of the prior art, efficiently utilize jet energy fractured rock, and form dark and bigger catalase method and the high pressure rotary dual-jet nozzle thereof in aperture of hole depth.
For this reason, the invention provides a kind of high pressure rotary dual-jet boring method, use rotating jet method and straight fluid jet simultaneously, the rotating jet method forms big energy transmission area district in the target area, direct projection stream partly forms energy transmission area district in target area center, two kinds of jets of rotating jet method and straight fluid jet are mutual shearing relation, and two kinds of jets of rotating jet method and straight fluid jet are sheared the generation cavitation mutually.
The present invention also provides a kind of high pressure rotary dual-jet nozzle of realizing said method, and it comprises outer nozzle and inner nozzle, and inner nozzle is arranged at outer nozzle inside, and is provided with the blade of putting english, and the compound mode between interior outer nozzle is inner nozzle and the coaxial setting of outer nozzle.
Advantage and characteristics that high pressure rotary dual-jet boring method of the present invention and high pressure rotary dual-jet nozzle thereof compared with prior art possess are:
The high pressure rotary dual-jet boring method that the present invention proposes is that a kind of its bit nozzle structure flows for direct projection in the middle of being direct projection stream and rotating jet reasonable combination together and the high pressure rotary dual-jet boring method that forms, and skin is ring-type, coaxial rotating jet.That is, the blade of fixedly putting english with the nozzle interior utilized produces rotary speed and forms rotating jet, and another part fluid then passes through advantage and the characteristics that independently intermediate flow channel outflow forms direct projection stream.Thereby, utilize rotating jet to come efficiency crushing rock and the bigger catalase area of formation on the one hand, then utilize the direct projection stream energy to transmit the long advantage of distance on the other hand, utilize the impact grinding rock to improve the broken degree of depth, and, be easy in jet, produce the vortex of macrostructure owing to the strong shear action between direct projection stream and rotating jet, can produce the local decompression district, can form stronger cavitation phenomenon, thereby improve the utilization ratio of jet energy greatly.
High pressure rotary dual-jet boring method of the present invention, in fluid, add abrasive material after, can improve the impact property of the fluid that is ejected, can be implemented in metal or high-intensity boring on nonmetal.
The rotating jet that the present invention adopts is in conjunction with the high pressure rotary dual-jet nozzle arrangements of direct projection stream, the rotation dual-jet that can make its generation is greatly improved than the rock-breaking drilling effect of common convergent cone spray and rotating jet, test shows: compare with direct projection stream under identical pressure, discharge capacity condition, the broken rock thresholding pressure of dual-jet only is 1/2 of direct projection stream, its erosion enlarged areas 2-4 doubly, the long-pending specific energy of broken rock mass can reduce more than 85%, and the cleaning performance of broken landwaste is improved significantly; Compare with the sub-thread rotating jet, projection at the bottom of the hole that its broken rock degree of depth has increased and formed when having avoided rotary jet rock-breaking has broad application prospects and development potentiality.Therefore, the present invention both can be used for various chipping type bits (as the PDC drill bit), also can be used for common rock bit or drag bit, also can be used as the drift of equipment such as the cleaning of hydraulic drilling drill bit or fluid power, rust cleaning.
Description of drawings
Fig. 1 is that high pressure rotary dual-jet nozzle shaft of the present invention is to generalized section;
Fig. 2 a is the axial arrangement schematic diagram of inner nozzle in the high pressure rotary dual-jet nozzle of the present invention;
Fig. 2 b is the generalized section along A-A line among Fig. 2 a;
Fig. 3 a is the axial arrangement schematic diagram of outer nozzle in the high pressure rotary dual-jet nozzle of the present invention;
Fig. 3 b is the generalized section along D-D line among Fig. 3 a.
The specific embodiment
Describe embodiments of the invention in detail below in conjunction with accompanying drawing, thus make the technical problem to be solved in the present invention, feature and the technique effect that reached more cheer and bright.
High pressure rotary dual-jet boring method of the present invention comprises rotating jet method and straight fluid jet, rotating jet method and straight fluid jet are for using simultaneously, the rotating jet method forms big energy transmission area district in the target area, direct projection stream partly forms energy transmission area district in target area center, shearing relation between two kinds of jets of rotating jet method and straight fluid jet, reach the advantage that makes full use of the big and direct projection stream energy transmission distance of rotating jet energy transmission area, and utilizing rotating jet to shear the technique effect of broken rock, the mutual shearing of two kinds of jets can also produce stronger cavitation and the efficiency crushing rock.
High pressure rotary dual-jet boring method of the present invention can add abrasive material in fluid, thereby improve the impact property of the fluid that is ejected, the mode that adds abrasive material can adopt usual manner in the prior art, high pressure rotary dual-jet boring method of the present invention also can metal or high-intensity nonmetal on boring.
See also Fig. 1 to Fig. 3, the specific embodiment of high pressure rotary dual-jet nozzle of the present invention is described.As seen from Figure 1, high pressure rotary dual-jet nozzle of the present invention comprises outer nozzle 1 and inner nozzle 2, and inner nozzle 2 is arranged at outer nozzle inside, and has the blade of putting english 3, and the compound mode between interior outer nozzle is that inner nozzle 2 and outer nozzle 1 are coaxial sheathed.
See also Fig. 2 a, 2b, it is the axial arrangement schematic diagram and the generalized section of inner nozzle in the high pressure rotary dual-jet nozzle of the present invention.The profile of described inner nozzle 2 probably is an infundibulate, its front end is the inner nozzle outlet section 21 that is column, its inner formation inner outlet 24, the rear portion of described inner nozzle 2 is a column 23, the outside of this column 23 is provided with at least two blades 3 of putting english, seeing Fig. 2 a, is 3 blades of putting english in the present embodiment, is connected by taper connection section 22 between described column 23 and the inner nozzle outlet section 21.The inside of described inner nozzle 2, promptly the inside of column 23, taper connection section 22 is cavity, and this cavity constitutes the fluid passage 25 that is connected with above-mentioned inner outlet 24.
See also Fig. 3 a, 3b, it is that high pressure rotary dual-jet nozzle of the present invention China and foreign countries nozzle shaft is to structural representation and generalized section.Outer nozzle 1 is the main body of nozzle, comprises the inlet channel 11 of a hollow and the outlet flow 10 of taper, is jet 12 at the front end of outlet flow 10.Please be simultaneously referring to Fig. 1, inner nozzle 2 is embedded in the outer nozzle 1, the inlet channel 11 of hollow contains the column 23 of the formation fluid passage 25 of establishing inner nozzle 2, conical outlet flow 10 contains the taper connection section 22 of establishing inner nozzle, jet 12 contains the column outlet section 21 of establishing inner nozzle, and the each several part internal diameter of outer nozzle 1 is all greater than inner nozzle 2 each several part external diameters with matching, promptly, the internal diameter of the jet 12 of described outer nozzle 1 is greater than the external diameter of the column outlet section 21 of inner nozzle 2, the internal diameter of the outlet flow 10 of outer nozzle 1 is greater than the external diameter of the taper connection section 22 of inner nozzle 2, and the internal diameter of the inlet channel 11 of outer nozzle 1 is greater than the external diameter of the column 23 of inner nozzle 2, thereby forms the annular space runner 4 that rotating jet flows out between outer nozzle 1 and inner nozzle 2.
The outside dimension of the blade 3 of putting english of described column 23 outsides that are arranged on inner nozzle 2 is the internal diameter size smaller or equal to outer nozzle 1 inlet channel 11, thereby this inner nozzle 2 can be rotated in outer nozzle 1 under the impact of high-pressure fluid.The spatial shape of the described blade 3 of putting english can be helical curve or other forms of space curve, is helical curve in the present embodiment.
The operating principle of high pressure rotary dual-jet boring method of the present invention and high pressure rotary dual-jet nozzle thereof now is described in conjunction with Fig. 1.Among Fig. 1, enter the inlet channel 11 of outer nozzle 1 when one high-pressure fluid after, fluid passage 25 and inner outlet 24 that a part of fluid continues to flow through inner nozzle 2 flow out, and form direct projection stream; Another part fluid is then by the annular space runner 4 between inner nozzle 2 and the outer nozzle 1, and the jet 12 by outer nozzle 1 flows out then.The existence of blade 3 because put english, this segment fluid flow has obtained rotary speed in axial flow, forms rotating jet.Because this rotating jet does not have after forming the Gu Bi of nozzle to limit, and each particle of jet has three-dimensional velocity, must be under action of centrifugal force to external diffusion, thus form the rotating jet of horn-like external diffusion.Not only the required pressure of fractured rock is low, efficient is high for this jet, and can get out a regular eyelet than big several times to tens times of the diameter of nozzle own.
As everyone knows, rock is a kind of typical anisotropic material, under different stress conditions, show different mechanical properties, its compressive strength maximum, surpass its compressive strength and make its fragmentation unusual difficulty often by forward impact stress that jet is produced, oneself has confirmed this point forefathers' big quantity research.But comparatively speaking, the tensile strength of rock and shear strength are all very low, and the shear strength of general rock is the 1/8-1/15 of its compressive strength only, and tensile strength has only the 1/10-1/50 of its compressive strength.Therefore rotating jet radially " draws " power and circumferential " cutting " power to what rock applied, add the crushing force that forward impact produces, just can more easily meet or exceed the respective strengths of rock, thereby make rock generation stretching and be cut into main destruction, increase substantially crushing efficiency, reduced the thresholding pressure of broken rock.Utilize this compound mode, can fully play direct projection stream and rotating jet advantage separately, and replenish mutually, can in rock, form the degree of depth and all bigger broken duct of diameter.
The above person only; only be specific embodiments of the invention, when can not with qualification scope of the invention process, so the displacement of its equivalent assemblies; or, all should still belong to the category that claims of the present invention are contained according to equivalent variations and modification that scope of patent protection of the present invention is done.
Claims (10)
1, a kind of high pressure rotary dual-jet boring method, it is characterized in that: use rotating jet method and straight fluid jet simultaneously, the rotating jet method forms big energy transmission area district in the target area, direct projection stream partly forms energy transmission area district in target area center, two kinds of jets of rotating jet method and straight fluid jet are mutual shearing relation, and two kinds of jets of rotating jet method and straight fluid jet are sheared the generation cavitation mutually.
2, high pressure rotary dual-jet boring method as claimed in claim 1 is characterized in that: when using rotating jet method and straight fluid jet at the same time, add abrasive material in fluid.
3, high pressure rotary dual-jet boring method as claimed in claim 1 or 2, it is characterized in that: by outer nozzle and inner nozzle is sheathed mutually, make the internal diameter of the external diameter of inner nozzle less than outer nozzle, at at least two of the outer setting of the described inner nozzle blade of putting english, and inlet channel is set at outer nozzle, inside at inner nozzle constitutes the fluid passage, between outer nozzle and inner nozzle, form the annular space runner, after thereby fluid enters the inlet channel of outer nozzle, a part flows out by inner nozzle and forms direct projection stream, another part then flows out by above-mentioned annular space runner, and forms rotating jet under the effect of the blade of putting english.
4, a kind of high pressure rotary dual-jet nozzle of method according to claim 1 that is used for, it is characterized in that: comprise outer nozzle and inner nozzle, inner nozzle is arranged at outer nozzle inside, and is provided with the blade of putting english, and the compound mode between interior outer nozzle is inner nozzle and the coaxial setting of outer nozzle.
5, high pressure rotary dual-jet nozzle as claimed in claim 4, it is characterized in that: the profile of described inner nozzle is an infundibulate, and its outside is provided with at least two blades of putting english; The front end of described inner nozzle is the inner nozzle outlet section that is column, inner formation inner outlet, its rear portion is a column, is connected by the taper connection section between described column and the inner nozzle outlet section, and the inside of described inner nozzle constitutes the fluid passage that is connected with above-mentioned inner outlet.
6, high pressure rotary dual-jet nozzle as claimed in claim 5, it is characterized in that: the column outside of described inner nozzle is provided with 3 blades of putting english.
7, as each described high pressure rotary dual-jet nozzle of claim 4 to 6, it is characterized in that: the spatial shape of the described blade of putting english can be helical curve or other forms of space curve.
8, high pressure rotary dual-jet nozzle as claimed in claim 7, it is characterized in that: described outer nozzle is the main body of nozzle, comprises the inlet channel of a hollow and the outlet flow of taper, is jet at the front end of outlet flow.
9, high pressure rotary dual-jet nozzle as claimed in claim 7, it is characterized in that: described inner nozzle is nested in the outer nozzle, the inlet channel of hollow contains the column of the formation fluid passage of establishing inner nozzle, the outlet flow of taper contains the taper connection section of establishing inner nozzle, the column outlet section of establishing inner nozzle is sucked in injection, and the each several part internal diameter of outer nozzle forms the annular space runner that rotating jet flows out all greater than inner nozzle each several part external diameter with matching between outer nozzle and inner nozzle.
10, high pressure rotary dual-jet nozzle as claimed in claim 4, it is characterized in that: the profile of described inner nozzle is an infundibulate, and its outside is provided with at least two blades of putting english; The front end of described inner nozzle is the inner nozzle outlet section that is column, inner formation inner outlet, its rear portion is a column, is connected by the taper connection section between described column and the inner nozzle outlet section, and the inside of described inner nozzle constitutes the fluid passage that is connected with above-mentioned inner outlet; The spatial shape of the described blade of putting english is a helical curve; Described outer nozzle is the main body of nozzle, comprises the inlet channel of a hollow and the outlet flow of taper, is jet at the front end of outlet flow; Described inner nozzle is nested in the outer nozzle, the inlet channel of hollow contains the column of the formation fluid passage of establishing inner nozzle, the outlet flow of taper contains the taper connection section of establishing inner nozzle, the column outlet section of establishing inner nozzle is sucked in injection, and the each several part internal diameter of outer nozzle forms the annular space runner that rotating jet flows out all greater than inner nozzle each several part external diameter with matching between outer nozzle and inner nozzle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101173526A CN1959058B (en) | 2005-11-02 | 2005-11-02 | Rotary dual jet flows boring method under high pressure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2005101173526A CN1959058B (en) | 2005-11-02 | 2005-11-02 | Rotary dual jet flows boring method under high pressure |
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| CN1959058A true CN1959058A (en) | 2007-05-09 |
| CN1959058B CN1959058B (en) | 2010-06-02 |
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| CN101387191B (en) * | 2008-10-17 | 2011-11-09 | 大庆石油管理局 | Immobile string cleaner for vertical pipeline and method |
| CN102268966A (en) * | 2011-06-27 | 2011-12-07 | 重庆大学 | Hard rock crushing drill bit and method for crushing hard rock |
| CN102287136A (en) * | 2011-08-20 | 2011-12-21 | 大庆井泰石油工程技术股份有限公司 | Hydraulic jetting drilling-well shower nozzle |
| CN102345441A (en) * | 2011-06-21 | 2012-02-08 | 中国石油大学(北京) | Self-propelled drilling method and pulsed cavitation swirling jet nozzle |
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| DE3814687A1 (en) * | 1988-04-30 | 1989-11-09 | Krupp Widia Gmbh | EXTRACTION TOOL |
| CN1405429A (en) * | 2002-10-30 | 2003-03-26 | 石油大学(华东) | High-pressure rotary jet rock-breaking drilling method |
| CN2619042Y (en) * | 2003-03-07 | 2004-06-02 | 靳北彪 | Jet flow drilling system |
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| CN102080505A (en) * | 2011-01-15 | 2011-06-01 | 中国石油大学(华东) | Drill bit for swirling water jet drilling |
| CN102345441A (en) * | 2011-06-21 | 2012-02-08 | 中国石油大学(北京) | Self-propelled drilling method and pulsed cavitation swirling jet nozzle |
| CN102268966A (en) * | 2011-06-27 | 2011-12-07 | 重庆大学 | Hard rock crushing drill bit and method for crushing hard rock |
| CN102268966B (en) * | 2011-06-27 | 2013-06-05 | 重庆大学 | Hard rock crushing drill bit and method for crushing hard rock |
| CN102287136A (en) * | 2011-08-20 | 2011-12-21 | 大庆井泰石油工程技术股份有限公司 | Hydraulic jetting drilling-well shower nozzle |
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| CN105649537B (en) * | 2016-01-22 | 2019-05-14 | 西南石油大学 | Rotation self-advancing type mixing jet drill bit with cutting rib |
| CN105903586A (en) * | 2016-04-15 | 2016-08-31 | 中国石油天然气股份有限公司 | Combined double-jet nozzle |
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| CN108006435A (en) * | 2017-11-03 | 2018-05-08 | 中石化广州工程有限公司 | Liquefied natural gas gas-liquid pre-mixing apparatus |
| CN111042742A (en) * | 2018-10-15 | 2020-04-21 | 西南石油大学 | Diamond bit for comprehensive drilling |
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| CN111826513A (en) * | 2019-04-22 | 2020-10-27 | 中国科学院沈阳自动化研究所 | Impact strengthening device based on cavitation impact effect |
| WO2022142420A1 (en) * | 2020-12-31 | 2022-07-07 | 广州大学 | Multiphase flow rotating jet-based mixing apparatus for strengthening grinding machining |
| CN113790991A (en) * | 2021-08-23 | 2021-12-14 | 中国科学院武汉岩土力学研究所 | High-pressure water jet auxiliary rock breaking simulation test method in full-face tunnel boring machine |
| CN113790991B (en) * | 2021-08-23 | 2022-12-30 | 中国科学院武汉岩土力学研究所 | High-pressure water jet auxiliary rock breaking simulation test method in full-face tunnel boring machine |
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