CN203800759U - Underground magnetic coupling turbine power cantilever type AC generator - Google Patents
Underground magnetic coupling turbine power cantilever type AC generator Download PDFInfo
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- CN203800759U CN203800759U CN201320868027.3U CN201320868027U CN203800759U CN 203800759 U CN203800759 U CN 203800759U CN 201320868027 U CN201320868027 U CN 201320868027U CN 203800759 U CN203800759 U CN 203800759U
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Abstract
An underground magnetic coupling turbine power cantilever type AC generator comprises a flow pipe, a pressure cap, a diversion ring, a diversion device, a support pipe, an upper bearing, a magnetomotive turbine assembly, a lower bearing, a straight wing diversion device, a generator housing, a positioning screw, a support bearing, a generator rotor and a generator stator; the generator rotor is a cantilever type AC generator rotor, and comprises a coupling magnetic steel, a coupling magnetic steel support, a rotor magnetic steel support and a rotor magnetic steel; the generator stator is a cantilever type AC generator stator, and comprises an isolation magnetic rack, a stator outer housing, a stator coil, a stator inner housing and a positioning pin; the generator is high in power generation efficiency, can realize large power generation, is low in making and usage cost, and long in service life.
Description
Technical field
The present invention relates to petroleum industry measurement while drilling (MWD) technical field, particularly a kind of down-hole magnetic coupling turbo-power cantilever type alternating current generator.
Background technology
Petroleum industry measurement while drilling (MWD) technology is a main direction of petroleum technology service, through the development of more than 10 years, at present at comparative maturity of international petroleum art, down-hole power is the place of the key of petroleum industry measurement while drilling (MWD) technology, at present most popular is battery pack, but battery capacity is limited, and useful life is shorter, the impact that raise by downhole temperature is larger, and expensive; Changing battery pack needs round trip frequently, makes a big impact to normal drill footage, and often battery electric quantity is tood many or too much for use and also dare not be taken a risk to go into the well again.
Round trip and large volume and electricity complete battery pack useless have been wasted a large amount of manpower and materials frequently, and because itself characteristic of battery material need to be transported it, store and scrap and carried out special processing this has just increased the cost of drilling well greatly.
In downhole measurement tools, transducer, circuit and telemetering equipment power are from several watts to 700 watts.Along with oil-gas mining is to deep layer and multilevel well, Multilateral Wells future development, downhole temperature raises, instrument underground work time lengthening, and the use of underground high-power instrument, the supply of electric power of downhole tool has become the key factor of restriction underground survey system works.The external general power supply taking turbogenerator as downhole instrument at present, but its core technology of foreign corporation is maintained secrecy to China; Some scientific research institutions of recent year also carry out tackling of key scientific and technical problems to correlation technique, but also there is no ripe downhole generator matching equipment instrument at present.
Current disclosed downhole generator is made up of impeller, driving shaft, speed changer, rotor, stator, generator casing.The hard juncture of transmission adopted machinery.Slurry flows is impacted vane rotary, and driving shaft is by the generating of the speed changer rotor driven circumgyration incision magnetic line of force.But drive system is the hard juncture of machinery, and its machining accuracy becomes a key factor of product stability, the unlubricated and cooling measure of speed changer simultaneously, the stability and the useful life that under the high temperature of down-hole, run up for a long time and reduced its use.
The downhole measurement tools of a kind of integrated drilling fluid pulse generator and turbogenerator is disclosed in US Patent No. 517464, generator is made up of turbine propulsion device, driving shaft, speed changer, generator, velometer, owing to being limited to space, down-hole and turbine characteristic, complex structure and power are less, bearing and coil on-line operation are in drilling fluid, require very high to drilling fluid quality, bearing performance, coil insulation, in the adverse circumstances of down-hole high temperature, sharp pounding, run up for a long time, greatly reduce its useful life.
summary of the invention
In order to solve the deficiency of the said equipment, the invention provides a kind of down-hole magnetic coupling turbo-power cantilever type alternating current generator, this device structure is simple, novel form, running are reliable, power is large, compact conformation, compatible strong, be applicable to petroleum industry measurement while drilling (MWD) technical field.Object of the present invention is exactly for scene provides a kind of down-hole magnetic coupling turbo-power cantilever type alternating current generator.
The present invention is achieved by the following technical solutions.
A kind of down-hole magnetic coupling turbo-power cantilever type alternating current generator, it comprises stream pipe, pressure cap, guide ring, air deflector, stay pipe, upper bearing (metal), magnetomotive turbine assembly, lower bearing, straight wing air deflector, generator casing, dog screw, spring bearing, generator amature, generator unit stator, generator amature is cantilever type alternator rotor, by coupling magnet steel, coupling magnet steel support, rotor magnetic steel support, rotor magnetic steel composition, coupling magnet steel support is a pipe, there is a boss at epimere middle part, hypomere is tubule, tubule top is processed with screw thread, spring bearing is installed at boss two ends, boss cylindrical evenly has 6 elongated slots, fixed coupling magnet steel in groove, the outer cover of tubule rotor magnetic steel support and is fixed on the screw thread on tubule top, rotor magnetic steel support is a pipe, top endoporus is processed with screw thread, excircle evenly has 6 elongated slots, fixed rotor magnet steel in groove, rotor magnetic steel is positioned at the bracketed part of cantilever type alternator rotor, generator unit stator is cantilever type alternator frame, by every magnet stand, stator casing body, stator coil, stator inner housing, alignment pin composition, stator casing body is pipe at the bottom of a band, bottom centre is porose, this hole has 4 holes around, wherein there are 2 hole fixed locating studs, wire is drawn from other 2 holes, its the first half has equally distributed 3 breach, the latter half is fixed wtih stator coil, the profile of stator coil is pipe, there are 2 blind holes lower surface, alignment pin inserts in these 2 holes, the first half of stator inner housing is pipe at the bottom of a band, bottom centre is porose, the latter half is a pipe, the first half has equally distributed 3 breach, bottom pipe is through the endoporus of stator coil, be fixed together with the bottom centre hole of stator casing body, 3 breach of the first half and 3 breach of stator casing body intersect, pipe at the bottom of magnet stand is a band, bottom centre is porose, the end, has 6 breach that are uniformly distributed along the circumference above, wherein 3 of space breach extend to bottom surface, the part of stator casing body together with stator inner housing fork is by separating completely every magnet stand, form a complete uncovered endoporus, rotor magnetic steel is positioned at uncovered endoporus inside, wire is the wire of drawing of stator coil.
Generator casing is a pipe, upper and lower two ends are processed with screw thread, a boss is arranged at cylindrical bottom, endoporus has two boss, on the cylindrical of top, there are 3 uniform tapped blind holes, cylindrical lower boss place is fixed wtih lower bearing, the boss place, middle part of endoporus is supporting cantilever type alternator rotor by spring bearing, the lower boss place of endoporus is fixed wtih cantilever type alternator frame, stay pipe is enclosed within on its cylindrical, be fixed on its 3 uniform tapped blind hole places by 3 dog screws, the endoporus of straight wing air deflector is fixed on the position on the lower of generator casing cylindrical, cylindrical is fixed on the endoporus of stream pipe.
Stream Guan Weiyi pipe, upper bearing (metal) is fixed on the cylindrical of stay pipe, guide ring, air deflector are fixed on the cylindrical of stay pipe, and compressed by pressure cap, the cylindrical of guide ring, air deflector is supported on the inwall of stream pipe, magnetomotive turbine assembly is supported on the cylindrical of upper bearing (metal) and lower bearing, and two ends are located by step, and coupling magnet steel is positioned at the equal height of magnetomotive turbine assembly.
Form power magnetic field by magnet steel support and magnet steel, on the endoporus of magnet steel support, evenly have 6 axial grooves, excircle evenly has 6 elongated slots, in groove, be fixed wtih magnet steel, form magnetomotive turbine assembly by water lubriucated bearing, turbine case, power magnetic field, stop pin, power magnetic field is fixed on the middle part of turbine case endoporus, located by stop pin, 2 water lubriucated bearings are separately fixed in the hole at turbine case two ends, located by step, on the endoporus of water lubriucated bearing, have axial groove, one end end face has radial slot.
The present invention has the following advantages: the endoporus of magnetomotive turbine assembly has axial groove, both ends of the surface have radial slot, mud flows through from groove, take away the heat of generation, also there is good lubrication simultaneously, generator casing is by magnetomotive turbine assembly and cantilever type alternator rotor, cantilever type alternator frame separates, and cantilever type alternator rotor is supported on generator casing inside by spring bearing, power carries out magnetic coupling and transmits without friction, greatly reduce difficulty of processing, improve mechanical efficiency, the cantilever rotor of cantilever type alternating current generator stretches into cantilever type alternator frame inside, between isolate without metal, air gap is very little, noenergy loss, generating efficiency is high, can realize the generating of relatively high power, the cantilever rotor of cantilever type alternating current generator and cantilever type alternator frame are sealed in generator casing inside, system is to drilling fluid quality, bearing performance, coil insulation does not have special requirement, simple in structure, manufacture with use cost cheap, long service life.
Brief description of the drawings
Fig. 1: the structural representation of a kind of down-hole magnetic coupling turbo-power cantilever type alternating current generator
1, stream pipe 2, pressure cap 3, guide ring 4, air deflector 5, stay pipe 6, upper bearing (metal) 7, water lubriucated bearing 8, turbine case 9, magnet steel support
10, stop pin 11, lower bearing 12, straight wing air deflector 13, generator casing 14, dog screw 15, spring bearing 16, magnet steel 17, coupling magnet steel
18, coupling magnet steel support 19, rotor magnetic steel support 20, rotor magnetic steel
21, every magnet stand 22, stator casing body 23, stator coil 24, stator inner housing 25, alignment pin 26 wires.
Embodiment
Now in conjunction with Figure of description: the present invention will be further described for Fig. 1.
A kind of down-hole magnetic coupling turbo-power cantilever type alternating current generator, comprise stream pipe 1, pressure cap 2, guide ring 3, air deflector 4, stay pipe 5, upper bearing (metal) 6, magnetomotive turbine assembly, lower bearing 11, straight wing air deflector 12, generator casing 13, dog screw 14, spring bearing 15, cantilever type alternator rotor, cantilever type alternator frame, form power magnetic field by magnet steel support 9 and magnet steel 16, on the endoporus of magnet steel support 9, evenly have 6 axial grooves, excircle evenly has 6 elongated slots, in groove, be fixed wtih magnet steel 16, by water lubriucated bearing 7, turbine case 8, power magnetic field, stop pin 10 forms magnetomotive turbine assembly, power magnetic field is fixed on the middle part of turbine case 8 endoporus, guarantee that by stop pin 10 location the two does not relatively rotate, 2 water lubriucated bearings 7 are separately fixed in the hole at turbine case 8 two ends, located by step, on the endoporus of water lubriucated bearing 7, have axial groove, one end end face has radial slot.
Stream pipe 1 is a pipe, upper bearing (metal) 6 is fixed on the cylindrical of stay pipe 5, guide ring 3, air deflector 4 are fixed on the cylindrical of stay pipe 5, and compressed by pressure cap 2, the cylindrical of guide ring 3, air deflector 4 is supported on the inwall of stream pipe 1, magnetomotive turbine assembly is supported on the cylindrical of upper bearing (metal) 6 and lower bearing 11, and two ends are located by step, and coupling magnet steel 17 is positioned at the equal height of magnetomotive turbine assembly.
Generator casing 13 is a pipe, upper and lower two ends are processed with screw thread, a boss is arranged at cylindrical bottom, endoporus has two boss, on the cylindrical of top, there are 3 uniform tapped blind holes, cylindrical lower boss place is fixed wtih lower bearing 11, the boss place, middle part of endoporus is supporting cantilever type alternator rotor by spring bearing 15, the lower boss place of endoporus is fixed wtih cantilever type alternator frame, stay pipe 5 is enclosed within on its cylindrical, be fixed on its 3 uniform tapped blind hole places by 3 dog screws 14, the endoporus of straight wing air deflector 12 is fixed on the position on the lower of generator casing 13 cylindricals, cylindrical is fixed on the endoporus of stream pipe 1.
Cantilever type alternator rotor is made up of the magnet steel 17 that is coupled, coupling magnet steel support 18, rotor magnetic steel support 19, rotor magnetic steel 20.Coupling magnet steel support 18 is a pipe, there is a boss at epimere middle part, hypomere is tubule, tubule top is processed with screw thread, spring bearing 15 is installed at boss two ends, boss cylindrical evenly has 6 elongated slots, fixed coupling magnet steel 17 in groove, the outer cover of tubule rotor magnetic steel support 19 and is fixed on the screw thread on tubule top, rotor magnetic steel support 19 is a pipe, and top endoporus is processed with screw thread, and excircle evenly has 6 elongated slots, fixed rotor magnet steel 20 in groove, rotor magnetic steel 20 is positioned at the bracketed part of cantilever type alternator rotor.
Cantilever type alternator frame is by every magnet stand 21, stator casing body 22, stator coil 23, stator inner housing 24, alignment pin 25 forms, stator casing body 22 is pipe at the bottom of a band, bottom centre is porose, this hole has 4 holes around, wherein there are 2 hole fixed locating studs 25, wire 26 is drawn from other 2 holes, its the first half has equally distributed 3 breach, the latter half is fixed wtih stator coil 23, the profile of stator coil 23 is circle shape pipe, there are 2 blind holes lower surface, alignment pin 25 inserts in these 2 holes, the first half of stator inner housing 24 is pipe at the bottom of a band, bottom centre is porose, the latter half is a pipe, the first half has equally distributed 3 breach, bottom pipe is through the endoporus of stator coil 23, be fixed together with the bottom centre hole of stator casing body 22, 3 breach of the first half and 3 breach of stator casing body 22 intersect, pipe at the bottom of magnet stand 21 is a band, bottom centre is porose, the end, has 6 breach that are uniformly distributed along the circumference above, wherein 3 of space breach extend to bottom surface, the part of stator casing body 22 together with pitching with stator inner housing 24 is by separating completely every magnet stand 21, form a complete uncovered endoporus, rotor magnetic steel 20 is positioned at uncovered endoporus inside, the center of a kind of down-hole magnetic coupling turbo-power cantilever type alternating current generator has centre bore to connect from top to bottom.
Generator casing 13 two ends are connected with the associated components of petroleum industry measurement while drilling (MWD) instrument respectively, then pack itself and a kind of down-hole magnetic coupling turbo-power cantilever type alternating current generator into drill collar, and be connected with slurry channel, down-hole slurry is flowed through by stream pipe 1, pressure cap 2, guide ring 3, air deflector 4, stay pipe 5, upper bearing (metal) 6, generator casing 13, magnetomotive turbine assembly, lower bearing 11, the fluid passage that straight wing air deflector 12 forms, wash away the turbine case 8 that is supported on the magnetomotive turbine assembly on upper bearing (metal) 6 and lower bearing 11 cylindricals, thereby drive the water lubriucated bearing 7 and the magnet steel support 9 that are fixed as one with it to rotate, be fixed on the also and then rotation together of magnet steel 16 on magnet steel support 9, and then drive the coupling magnet steel 17 that is positioned at generator casing 13 inside to rotate by the bonding force in magnetic field, drive again the rotation together with the coupling magnet steel support 18 on spring bearing 15 that is supported on being fixed together with the magnet steel 17 that is coupled, drive again the rotor magnetic steel support 19 being fixed together with coupling magnet steel support 18 to rotate, be fixed on the also and then rotation of rotor magnetic steel 20 on rotor magnetic steel support 19, form rotating magnetic field, therefore the stator coil 23 that is fixed on generator casing 13 inside cuts the magnetic line of force of rotating magnetic field, produce induced current.Under down-hole slurry ceaselessly washes away, ceaselessly High Rotation Speed of magnetomotive turbine assembly, drive cantilever type alternator rotor to follow High Rotation Speed, the stator coil 23 of this generator just produces continual electric current, the electric current producing is alternating current, through rectifying and wave-filtering, voltage stabilizing is converted into the stabilized power supply that downhole instrument can be used to alternating current, carries electric energy endlessly for downhole instrument, completes the power supply process of generator.
Claims (4)
1. a down-hole magnetic coupling turbo-power cantilever type alternating current generator, it comprises stream pipe (1), pressure cap (2), guide ring (3), air deflector (4), stay pipe (5), upper bearing (metal) (6), magnetomotive turbine assembly, lower bearing (11), straight wing air deflector (12), generator casing (13), dog screw (14), spring bearing (15), generator amature, generator unit stator, it is characterized in that, generator amature is cantilever type alternator rotor, by coupling magnet steel (17), coupling magnet steel support (18), rotor magnetic steel support (19), rotor magnetic steel (20) composition, coupling magnet steel support (18) is a pipe, there is a boss at epimere middle part, hypomere is tubule, tubule top is processed with screw thread, spring bearing (15) is installed at boss two ends, boss cylindrical evenly has 6 elongated slots, fixed coupling magnet steel (17) in groove, the outer cover of tubule rotor magnetic steel support (19) and is fixed on the screw thread on tubule top, rotor magnetic steel support (19) is a pipe, top endoporus is processed with screw thread, excircle evenly has 6 elongated slots, fixed rotor magnet steel (20) in groove, rotor magnetic steel (20) is positioned at the bracketed part of cantilever type alternator rotor, generator unit stator is cantilever type alternator frame, by every magnet stand (21), stator casing body (22), stator coil (23), stator inner housing (24), alignment pin (25) composition, stator casing body (22) is pipe at the bottom of a band, bottom centre is porose, this hole is processed with 4 holes around, wherein 2 hole fixed locating studs (25), wire (26) is drawn from other 2 holes, its the first half is uniformly distributed 3 breach, the latter half is fixed wtih stator coil (23), the profile of stator coil (23) is pipe, there are 2 blind holes lower surface, alignment pin (25) inserts in these 2 holes, the first half of stator inner housing (24) is pipe at the bottom of a band, bottom centre is porose, the latter half is a pipe, the first half has equally distributed 3 breach, bottom pipe is through the endoporus of stator coil (23), be fixed together with the bottom centre hole of stator casing body (22), 3 breach of the first half and 3 breach of stator casing body (22) intersect, pipe at the bottom of magnet stand (21) is a band, bottom centre is porose, the end, has 6 breach that are uniformly distributed along the circumference above, wherein 3 of space breach extend to bottom surface, the part of stator casing body (22) together with stator inner housing (24) fork is by separating completely every magnet stand (21), form a complete uncovered endoporus, rotor magnetic steel (20) is positioned at uncovered endoporus inside, what wire (26) was stator coil (23) draws wire.
2. according to claim 1
oneplant down-hole magnetic coupling turbo-power cantilever type alternating current generator, it is characterized in that, generator casing (13) is a pipe, upper and lower two ends are processed with screw thread, a boss is arranged at cylindrical bottom, endoporus has two boss, on the cylindrical of top, there are 3 uniform tapped blind holes, cylindrical lower boss place is fixed wtih lower bearing (11), the boss place, middle part of endoporus is supporting cantilever type alternator rotor by spring bearing (15), the lower boss place of endoporus is fixed wtih cantilever type alternator frame, stay pipe (5) is enclosed within on its cylindrical, be fixed on its 3 uniform tapped blind hole places by 3 dog screws (14), the endoporus of straight wing air deflector (12) is fixed on the position on the lower of generator casing (13) cylindrical, cylindrical is fixed on the endoporus of stream pipe (1).
3. according to claim 1
oneplant down-hole magnetic coupling turbo-power cantilever type alternating current generator, it is characterized in that, stream pipe (1) is a pipe, upper bearing (metal) (6) is fixed on the cylindrical of stay pipe (5), guide ring (3), air deflector (4) is fixed on the cylindrical of stay pipe (5), and compressed by pressure cap (2), guide ring (3), the cylindrical of air deflector (4) is supported on the inwall of stream pipe (1), magnetomotive turbine assembly is supported on the cylindrical of upper bearing (metal) (6) and lower bearing (11), two ends are located by step, coupling magnet steel (17) is positioned at the equal height of magnetomotive turbine assembly.
4. according to claimed in claim 1
oneplant down-hole magnetic coupling turbo-power cantilever type alternating current generator, it is characterized in that, form power magnetic field by magnet steel support (9) and magnet steel (16), on the endoporus of magnet steel support (9), evenly have 6 axial grooves, excircle evenly has 6 elongated slots, in groove, be fixed wtih magnet steel (16), by water lubriucated bearing (7), turbine case (8), power magnetic field, stop pin (10) composition magnetomotive turbine assembly, power magnetic field is fixed on the middle part of turbine case (8) endoporus, located by stop pin (10), 2 water lubriucated bearings (7) are separately fixed in the hole at turbine case (8) two ends, located by step, on the endoporus of water lubriucated bearing (7), have axial groove, one end end face has radial slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868027.3U CN203800759U (en) | 2013-12-27 | 2013-12-27 | Underground magnetic coupling turbine power cantilever type AC generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320868027.3U CN203800759U (en) | 2013-12-27 | 2013-12-27 | Underground magnetic coupling turbine power cantilever type AC generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800759U true CN203800759U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320868027.3U Withdrawn - After Issue CN203800759U (en) | 2013-12-27 | 2013-12-27 | Underground magnetic coupling turbine power cantilever type AC generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN203800759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701259A (en) * | 2013-12-27 | 2014-04-02 | 东营市创元石油机械制造有限公司 | Underground magnetic coupling turbine power cantilever type alternating current generator |
| CN112302855A (en) * | 2020-11-02 | 2021-02-02 | 长江大学 | Underground power generation device and power generation method |
-
2013
- 2013-12-27 CN CN201320868027.3U patent/CN203800759U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701259A (en) * | 2013-12-27 | 2014-04-02 | 东营市创元石油机械制造有限公司 | Underground magnetic coupling turbine power cantilever type alternating current generator |
| CN103701259B (en) * | 2013-12-27 | 2015-12-23 | 东营市创元石油机械制造有限公司 | A kind of down-hole magnetic coupling turbine power cantilever type alternating current generator |
| CN112302855A (en) * | 2020-11-02 | 2021-02-02 | 长江大学 | Underground power generation device and power generation method |
| CN112302855B (en) * | 2020-11-02 | 2022-02-15 | 长江大学 | Underground power generation device and power generation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20151223 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |