CN203430575U - Turbine assembly of turbodrill - Google Patents

Turbine assembly of turbodrill Download PDF

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Publication number
CN203430575U
CN203430575U CN201320532194.0U CN201320532194U CN203430575U CN 203430575 U CN203430575 U CN 203430575U CN 201320532194 U CN201320532194 U CN 201320532194U CN 203430575 U CN203430575 U CN 203430575U
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CN
China
Prior art keywords
turbine
stator
rotor
turbodrill
turbine assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320532194.0U
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Chinese (zh)
Inventor
贺昶明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Kesheng Petroleum Technology Co Ltd
Original Assignee
Chengdu Kesheng Petroleum Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Kesheng Petroleum Technology Co Ltd filed Critical Chengdu Kesheng Petroleum Technology Co Ltd
Priority to CN201320532194.0U priority Critical patent/CN203430575U/en
Application granted granted Critical
Publication of CN203430575U publication Critical patent/CN203430575U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a turbine assembly of a turbodrill. The turbine assembly of the turbodrill comprises a turbine rotor and a turbine stator, wherein the turbine rotor comprises an annular impeller wheel hub, one end face of the impeller wheel hub extends outwards to form a guiding lantern ring, the impeller wheel hub is provide with a positioning step formed on the outer end face of the guiding lantern ring, a key groove is formed in the inner circumferential surface of a rotor movable ring, a key groove is formed in the inner circumferential surface of the guiding lantern ring, and a plurality of rotor vanes are arranged on the outer circumferential surface of the rotor movable ring; the turbine stator comprises an inner lantern ring and an outer lantern ring, and the inner lantern ring is fixedly connected with the outer lantern ring through a plurality of stator vanes; the inner lantern ring is sleeved with the guiding lantern ring, and the turbine rotor and the turbine stator are nested in a matching mode through the positioning step. The turbine assembly of the turbodrill is steady in structure, durable, high in strength, high in efficiency, and long in service life.

Description

A kind of turbine assembly of turbodrill
Technical field
The utility model relates to a kind of oil drilling tools accessory, and specifically a kind of turbine assembly of turbodrill, belongs to petroleum machinery field.
Background technique
Turbodrill is more severe in underground work condition, drilling mud flows the turbine rotor blade of direct high speed impact turbine assembly parts, make it obtain energy, thereby drive the bit drilling well being attached thereto, turbodrill mainly includes turbine stator, turbine rotor, main shaft, thrust bearing, middle part bearing, lower bearing and shell and forms.During drilling well, drilling rod is motionless, by turbine rotor, drives main shaft to rotate, thus the plurality of advantages such as short when thering is high drilling speed, high efficiency and boring, and reduced the wearing and tearing of drilling rod, sleeve pipe etc. and the generation of accident.
The turbine of present turbodrill is subject to larger impact force in use, and it is prone to the phenomenon of fracture, thus damaged blade, not only cost increases, dismounting trouble, and can not make full use of the potential energy that high-pressure slurry flows.
Model utility content
Problem to be solved in the utility model is: a kind of turbine assembly of turbodrill is provided, for solving the liquid potential energy of turbine assembly in the past, utilizes problem insufficient, blade easy-rupturing.
The technological scheme that the utility model provides is: a kind of turbine assembly of turbodrill, comprise turbine rotor and turbine stator, described turbine rotor comprises annular impeller hub, impeller hub one side end face stretches out and forms the guiding collar, described impeller hub forms positioning step at the end face in guiding collar outside, described impeller hub and guiding collar inside circumference face are provided with keyway, and described impeller hub outer circumference face is provided with several rotor blades; Described turbine stator comprises inner sleeve and outer sleeve, and described inner sleeve is fixedly connected with by several stator vanes with outer sleeve; Described guide sleeve ring set is combined in inner sleeve and by positioning step turbine rotor and turbine stator is coordinated to intussusception.The outer sleeve of turbine stator is fixed on the shell of drilling tool, turbine rotor is connected with drilling tool drilling rod by keyway, during work, turbine stator is motionless, turbine rotor drives drilling tool drilling rod to rotate, liquid by and rotor blade and the stator vane of impulse turbine rotor and turbine stator, rotor blade and stator vane bear the dynamic impact problem from liquid, liquid potential energy converting and energy is become to mechanical energy and transmit the output torque of turbine, increase the utilization ratio of liquid potential energy by the alternately impinge of rotor and stator.
Described rotor blade and cross section identical with stator lobe configuration is selenodont, and the inner arc face of described rotor blade and stator vane is working surface; Described rotor blade and stator vane be also upper and lower coincidence arrangement in the opposite direction.Rotor blade is identical with stator lobe configuration and thereby cross section is selenodont and makes liquid can impact at a certain angle on blade the utilization ratio that increases liquid potential energy, increase trochiterian lateral thrust, and rotor blade and stator vane in the opposite direction also upper and lower coincidence arrange and make liquid can repeatedly be turned to utilization, effectively raise liquid potential energy converting and energy, the rotational efficienty of rotor improves.
The radian of described working surface is 80 °-100 °.The radian of stator vane is determining liquid angle and the impact area of liquid output from working surface bounce-back, liquid angle and impact area are determining the conversion ratio of liquid potential energy, when the radian of the working surface of stator vane is 80 °-100 °, the liquid angle of liquid output is 40 °-50 °, now stator vane lifting surface area is maximum, it is maximum, most effective that liquid impacts the potential energy of changing on rotor.
Described rotor blade and stator vane are respectively equipped with 16-32.The effect of stator vane utilizes the impact force of liquid that liquid potential energy is converted into mechanical energy, the number of stator vane not only determines and affects utilization ratio and the output torque of potential energy, also determined the distribution situation of output torque, according to the quantity of different operating mode stator vanes value arbitrarily, when but the quantity of stator vane is taken at certain value between 16-32, the utilization ratio of liquid potential energy is the highest, export torque maximum also the most even simultaneously, not only efficiency is high, also reduced the impact force that each blade is subject to, turbine stator can stablize, lasting work simultaneously; And the effect of rotor blade is about to the mechanical thrust that the output torque of stator converts rotor to, its quantity is crossed stressed more fragile at least, and quantity is crossed and easily caused at most liquid sinuous flow phenomenon, so getting 16-32, its quantity reaches maximum rotational efficienty when can well avoid above problem.
Described rotor blade and stator vane are even circumferential each other and level interval is equally spaced.Rotor blade and stator vane be each other even circumferential and level interval be equally spaced make stator and rotor stressed evenly, the mechanical energy of its conversion and output torque be balance more also, avoids turbine assembly unbalance stress and occurs vibrations or displacement.
Level interval between two rotor blades of described arbitrary neighborhood or two stator vanes of arbitrary neighborhood is greater than 12 millimeters and is less than 21 millimeters.The too small liquid impacting at blade and below rebounding of level interval between two rotor blades of arbitrary neighborhood or two stator vanes of arbitrary neighborhood can be beaten on vacuum side of blade, thereby has reduced potential energy, has reduced output torque, Efficiency Decreasing; The excessive liquid of level interval directly, by gap, can not impact blade, has reduced potential energy and output torque, and liquid utilization ratio is low, Efficiency Decreasing.
The 1-1.2 that described in root, the arc length of working surface is level interval doubly.The too short liquid of the arc length potential energy of working surface can only be beaten in working surface bottom, thereby the angle of its output torque angle of hitting in lower leaflet bigger than normal is bigger than normal, thereby reduced potential energy converting and energy, also likely cause liquid cannot hit in lower leaflet, so the 1-1.2 that the arc length of working surface is level interval doubly can not only avoid above problem, can also be maximum utilize liquid potential energy.
Described turbine rotor and turbine stator all adopt WC cemented carbide or 40Cr steel.A kind of alloy material that WC cemented carbide is made by powder metallurgical technique by hard compounds and the binding metal of refractory metal, WC cemented carbide has that hardness is high, wear-resisting, intensity and a series of premium properties, particularly its high hardness and wear resistance such as toughness is better, heat-resisting, corrosion-resistant; And 40Cr is one of most popular steel of machine building industry, after quenching with Subsequent tempering, there is good comprehensive mechanical property, good low-temperature impact toughness and low notch sensitivity, this steel except quenching with Subsequent tempering, is also suitable for cyaniding and high frequency hardening is processed, this steel is moderate, easy processing can obtain certain toughness, plasticity and wear resistance after suitable heat treatment.Turbine rotor and turbine stator be not only easily fracture under hydraulic shock, also may so adopt WC cemented carbide or 40Cr steel can not only reduce its wear extent, can also be extended its working life by the abrasion of particles in liquid, reduces its cost.
The utility model has the advantage of: the turbine assembly of this turbodrill of the utility model design, stabilized structure, durable not only, intensity is high, and efficiency is high, long service life.
Accompanying drawing explanation
Fig. 1 is decomposing schematic representation of the present utility model.
Fig. 2 is the erection drawing of the utility model broken section.
Fig. 3 is the cross-sectional view of the utility model rotor blade.
Fig. 4 is the structural representation of the utility model rotor blade.
Label in figure is expressed as: 1, rotor blade; 2, impeller hub; 3, positioning step; 4, turbine rotor; 5, the guiding collar; 6, keyway; 7, outer sleeve; 8, stator vane; 9, inner sleeve; 10, turbine stator; 11, working surface.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but mode of execution of the present utility model is not limited to this.
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of turbine assembly of turbodrill, comprise turbine rotor 4 and turbine stator 10, described turbine rotor 4 comprises annular impeller hub 2, impeller hub 2 one side end faces stretch out and form the guiding collar 5, described impeller hub 2 forms positioning step 3 at the end face in the guiding collar 5 outsides, and described impeller hub 2 and the guiding collar 5 inside circumference faces are provided with keyway 6, and described impeller hub 2 outer circumference faces are provided with several rotor blades 1; Described turbine stator 10 comprises inner sleeve 9 and outer sleeve 7, and described inner sleeve 9 is fixedly connected with by several stator vanes 8 with outer sleeve 7; The described guiding collar 5 is linked in inner sleeve 9 and by positioning step 3 turbine rotor 4 and turbine stator 10 is coordinated to intussusception.
Described rotor blade 1 and cross section identical with stator vane 8 structures is selenodont, and the inner arc face of described rotor blade 1 and stator vane 8 is working surface 11; Described rotor blade 1 and stator vane 8 be also upper and lower coincidence arrangement in the opposite direction.
The radian of described working surface 11 is 80 °-100 °.
Described rotor blade 1 and stator vane 8 are respectively equipped with 16-32.
Described rotor blade 1 and stator vane 8 is even circumferential each other and level interval is equally spaced.
Level interval between two rotor blades 1 of described arbitrary neighborhood or two stator vanes 8 of arbitrary neighborhood is greater than 12 millimeters and is less than 21 millimeters.
The arc length of described working surface 11 is 1-1.2 times of level interval.
Described turbine rotor 4 and turbine stator 10 all adopt WC cemented carbide or 40Cr steel.
In use, turbine stator 10 is fixed on the shell of drilling tool, the guiding collar 5 of turbine rotor 4 is linked on turbine stator 10, the two coordinates location by positioning step 3, keyway 6 in it coordinates with the bond structure of the drilling rod of drilling tool, rotor blade 1 discharged to stator vane 8 discharged to contrary, angle with 40-50 degree after liquid is by stator vane 8 conversions impacts on the working surface 11 at rotor blade 1, rotor blade 1 impacts lower liquid potential energy converting and energy is become to mechanical energy and rotates at liquid, by key, connect and drive drilling rod to rotate simultaneously, thereby complete drilling well.
Drilling tool adopts at least two group turbine assemblies to arrange in turn, liquid by and rotor blade and the stator vane of impulse turbine rotor and turbine stator, rotor blade and stator vane bear the dynamic impact problem from liquid, liquid potential energy converting and energy is become to mechanical energy and transmit the output torque of turbine, by the alternately impinge of rotor and stator, increase the utilization ratio of liquid potential energy.
The utility model improves structure, setting angle and the level interval of rotor blade 1 and stator vane 8, the utilization ratio of rotor blade 1 and 8 pairs of liquid potential energy of stator vane is improved, rotor rotational efficienty improves, and rotor blade 1 and stator vane 8 structural stability, shock-resistant and wear-resisting, also improved its working life greatly.
Can well realize the utility model as mentioned above.

Claims (8)

1. the turbine assembly of a turbodrill, comprise turbine rotor (4) and turbine stator (10), it is characterized in that: described turbine rotor (4) comprises annular impeller hub (2), impeller hub (2) one side end faces stretch out and form the guiding collar (5), described impeller hub (2) forms positioning step (3) at the end face in the guiding collar (5) outside, described impeller hub (2) and the guiding collar (5) inside circumference face are provided with keyway (6), and described impeller hub (2) outer circumference face is provided with several rotor blades (1); Described turbine stator (10) comprises inner sleeve (9) and outer sleeve (7), and described inner sleeve (9) is fixedly connected with by several stator vanes (8) with outer sleeve (7); The described guiding collar (5) is linked in inner sleeve (9) and by positioning step (3) turbine rotor (4) and turbine stator (10) is coordinated to intussusception.
2. the turbine assembly of a kind of turbodrill according to claim 1, it is characterized in that: described rotor blade (1) and cross section identical with stator vane (8) structure is selenodont, and the inner arc face of described rotor blade (1) and stator vane (8) is working surface (11); Described rotor blade (1) and stator vane (8) be also upper and lower coincidence arrangement in the opposite direction.
3. the turbine assembly of a kind of turbodrill according to claim 2, is characterized in that: the radian of described working surface (11) is 80 °-100 °.
4. the turbine assembly of a kind of turbodrill according to claim 1 and 2, is characterized in that: described rotor blade (1) and stator vane (8) are respectively equipped with 16-32.
5. the turbine assembly of a kind of turbodrill according to claim 1 and 2, is characterized in that: described rotor blade (1) and stator vane (8) is even circumferential each other and level interval is equally spaced.
6. the turbine assembly of a kind of turbodrill according to claim 5, is characterized in that: the level interval between two stator vanes of two rotor blades of described arbitrary neighborhood (1) or arbitrary neighborhood (8) is greater than 12 millimeters and is less than 21 millimeters.
7. according to the turbine assembly of a kind of turbodrill described in claim 5 or 6, it is characterized in that: the 1-1.2 that the arc length of described working surface (11) is level interval doubly.
8. the turbine assembly of a kind of turbodrill according to claim 1, is characterized in that: described turbine rotor (4) and turbine stator (10) all adopt WC cemented carbide or 40Cr steel.
CN201320532194.0U 2013-08-29 2013-08-29 Turbine assembly of turbodrill Expired - Fee Related CN203430575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320532194.0U CN203430575U (en) 2013-08-29 2013-08-29 Turbine assembly of turbodrill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320532194.0U CN203430575U (en) 2013-08-29 2013-08-29 Turbine assembly of turbodrill

Publications (1)

Publication Number Publication Date
CN203430575U true CN203430575U (en) 2014-02-12

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437829A (en) * 2013-08-29 2013-12-11 成都科盛石油科技有限公司 Turbine assembly for turbine drill
CN104047541A (en) * 2014-06-19 2014-09-17 西南石油大学 Novel automatic blowout prevention turbodrill stator
CN104976065A (en) * 2015-04-21 2015-10-14 李德生 Power generation system using wind field energy-gathering hollow ring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103437829A (en) * 2013-08-29 2013-12-11 成都科盛石油科技有限公司 Turbine assembly for turbine drill
CN104047541A (en) * 2014-06-19 2014-09-17 西南石油大学 Novel automatic blowout prevention turbodrill stator
CN104047541B (en) * 2014-06-19 2015-12-09 西南石油大学 A kind of new type auto blowout prevention turbodrill stator
CN104976065A (en) * 2015-04-21 2015-10-14 李德生 Power generation system using wind field energy-gathering hollow ring

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140212

Termination date: 20140829