CN104675611A - Mud generator with eddy-current brake function and outer rotors - Google Patents
Mud generator with eddy-current brake function and outer rotors Download PDFInfo
- Publication number
- CN104675611A CN104675611A CN201410466602.6A CN201410466602A CN104675611A CN 104675611 A CN104675611 A CN 104675611A CN 201410466602 A CN201410466602 A CN 201410466602A CN 104675611 A CN104675611 A CN 104675611A
- Authority
- CN
- China
- Prior art keywords
- housing
- generator
- impeller
- mud
- resistance
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a mud generator with an eddy-current brake function. The mud generator comprises a mud impeller, an impeller housing, a generator rotor, a compressive housing and a generator stator coil. An inner hole is formed inside the impeller housing and is coaxially movably connected with the compressive housing, an inner hole is formed inside the compressive housing and is fixedly connected with the generator stator coil, the mud impeller is fixedly connected with the outside of the impeller housing, the generator rotor is fixedly connected with the inner wall of the impeller housing and is fixedly connected with the inner hole of the compressive housing, and the generator rotor rotates around the generator stator coil when the mud impeller is driven by mud to drive the impeller housing to rotate around the compressive housing, so that power can be generated by the generator stator coil. The mud generator has the advantages that the problem that large quantities of components of the traditional mud generator, vulnerability to damage of interception components and the like are unfavorable for allowing the generators to run for a long time can be solved, and the integral efficiency and performance of the mud generator can be improved; power transmission gears can be omitted, accordingly, energy loss in transmission procedures can be reduced, and the system efficiency and stability can be improved.
Description
Technical field
The present invention relates to petroleum production and field of detecting, particularly relate to the slurry generator of eddy-current brake.
Background technique
Along with the development of petroleum industry, oil drilling exploitation turns to complicated land and deep-sea gradually, and drilling well difficulty increases greatly, and conventional straight well creeps into and can not meet complicated drilling well requirement gradually.Equipment requirement is improved day by day, is entering informationization, intellectuality, automatic phase.Under complex geological condition, drilling well also proposes higher requirement to DHM-MWD instrument and downhole intelligent instrument.At present, DHM-MWD instrument and downhole intelligent instrument have steering tool, with brill logging, rotary steerable tool etc., in order to ensure that these instrument and equipments work continuously, reliably, must have enough electric energy as guarantee, the power supply plan adopted at present mainly contains lithium battery power supply and down-hole slurry generator is powered.Adopt lithium battery power supply, its finite energy, temperature requirement is high, and user cost is high.Therefore, lithium cell is difficult to meet measurement while-drilling instrument, controlling tool and the deep drilling needs to electric power.And existing slurry generator mainly adopts inner rotor core, this form must by power transmitting deice transmit machine energy, coupling fluid-structure transmission conventional at present, magnetic driver all need extra transmission device, while increase volume, also slurry generator whole efficiency is made to reduce, hydraulic performance decline.Meanwhile, current motor braking mainly adopts realization of damming, and component are more, and closure member is fragile simultaneously, runs when being unfavorable for that motor is long.
Summary of the invention
In view of situation about existing in prior art, according to an aspect of the present invention, provide the slurry generator based on eddy-current brake, comprise, mud impeller, impeller housing, generator amature, resistance to compression housing and electricity generator stator coil; Endoporus is offered in described impeller housing inside, corresponding to the external diameter of described resistance to compression housing, is coaxially flexibly connected with described resistance to compression housing; Endoporus is offered in the inside of resistance to compression housing, and described mud impeller is connected with the external stability of described impeller housing, and described generator amature is fixedly connected with the inwall of described impeller housing, and described electricity generator stator coil is fixedly connected with the endoporus of described resistance to compression housing; When impeller housing is around resistance to compression housing into rotation under mud drives for described mud impeller, described generator amature rotates around described electricity generator stator coil, and described electricity generator stator coil is generated electricity.
In a preferred embodiment, endoporus one end of described impeller housing is flexibly connected by TC bearing with between described resistance to compression housing.
In a preferred embodiment, also comprise, tachogenerator, brake rotors, restraining coil and control circuit; Described restraining coil and control circuit are fixedly connected with the endoporus of described resistance to compression housing, and described tachogenerator is fixedly connected with the outer wall of described resistance to compression housing; The endoporus corresponding position of described impeller housing fixes described brake rotors; The input end of described control circuit is connected with the induction output terminal of described tachogenerator, output terminal is connected with described restraining coil, if the current current rotating speed received from described tachogenerator is greater than setting value, described restraining coil is then driven to be energized, by the moment of torsion that described restraining coil and described brake rotors produce, described impeller housing is braked.
In a preferred embodiment, the other end of the endoporus of described impeller housing is flexibly connected by TC bearing with between described resistance to compression housing.
In a preferred embodiment, also comprise: high-pressure sealing jack, described high-pressure sealing jack is fixedly connected with the both sides of described resistance to compression housing.
By technique scheme, the present invention compared with prior art has the following advantages: external rotor slurry generator provided by the invention, may be used for for downhole well tool provides electric energy.Generator adopts outer-rotor structure, achieves turbine and directly drives generator, eliminate transmission device, thus motor axial length is shortened greatly, save space, more can adapt to down-hole narrow space requirement.Owing to eliminating actuating unit, do not need to consider the energy loss in transmission process, substantially increase system effectiveness and stability.And outer-rotor structure is due to its structural feature, mud flows through from rotating part, can take away most of heat, be conducive to motor radiating, improve electrical machinery life in running.When control circuit detects that motor speed is too high, control circuit sends instruction, to restraining coil energising, produce electromagnetic action with brake rotors, in brake rotors, produce eddy current, braking is realized by consumed energy, compared with the conventional method, structure is simple, and manufacturability is better for this mode of braking, reliable operation, its cost also reduces greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the slurry generator of eddy-current brake in one embodiment of the present invention.Reference character
1-high-pressure sealing jack; 2-resistance to compression housing; 3-TC bearing; 4-impeller blocks up ring;
5-mud impeller; 6-impeller housing; 7-generator amature; 8-electricity generator stator coil;
9-brake rotors; 10-restraining coil; 11-control circuit; 12-axle; 13-TC bearing;
14-lower contact; 15-high-pressure sealing jack;
Embodiment
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is the structural representation of slurry generator, and its main constituent elements comprises, mud impeller, impeller housing, generator amature, resistance to compression housing and electricity generator stator coil; Endoporus is offered in described impeller housing inside, corresponding to the external diameter of described resistance to compression housing, is coaxially flexibly connected with described resistance to compression housing; Endoporus is offered in the inside of resistance to compression housing, and described mud impeller is connected with the external stability of described impeller housing, and described generator amature is fixedly connected with the inwall of described impeller housing, and described electricity generator stator coil is fixedly connected with the endoporus of described resistance to compression housing; When impeller housing is around resistance to compression housing into rotation under mud drives for described mud impeller, described generator amature rotates around described electricity generator stator coil, and described electricity generator stator coil is generated electricity.Wherein, endoporus one end of impeller housing is flexibly connected by TC bearing with between described resistance to compression housing.The other end of the endoporus of described impeller housing is flexibly connected by TC bearing with between described resistance to compression housing.
For realizing effective brake, one of the present invention preferred embodiment in, also comprise, tachogenerator, brake rotors, restraining coil and control circuit; Described restraining coil and control circuit are fixedly connected with the endoporus of described resistance to compression housing, and described tachogenerator is fixedly connected with the outer wall of described resistance to compression housing; The endoporus corresponding position of described impeller housing fixes described brake rotors; The input end of described control circuit is connected with the induction output terminal of described tachogenerator, output terminal is connected with described restraining coil, if the current current rotating speed received from described tachogenerator is greater than setting value, described restraining coil is then driven to be energized, by the moment of torsion that described restraining coil and described brake rotors produce, described impeller housing is braked.Described high-pressure sealing jack is fixedly connected with the both sides of described resistance to compression housing.
Slurry generator adopts outer-rotor structure, and its rotor is fixed on impeller housing inwall, and turbine is connected with impeller housing outer wall by extension key.During work, mud impacts impeller, and rotor driven rotates, and produces rotating magnetic field.Electricity generator stator coil is fixed on axle, rotating magnetic field and its interlinkage, produces electric energy, exports from lower contact end high-pressure sealing jack.Mud flows through from impeller housing outer wall, can take away the heat that generator produces, play thermolysis.
Restraining coil, control circuit and electricity generator stator coil are arranged on the same axis, save axial space, and be beneficial to installation, dismounting, manufacturability is better simultaneously.Control circuit built-in switch, opening and turning off the electrical connection controlling itself and restraining coil by switch.When mud flow rate is excessive, when motor speed is too high, control circuit sends instruction, opens switch, powers to restraining coil, produces rotating magnetic field.Brake rotors adopts high resistivity special material, and due to the characteristic of its high resistivity, can induct a large amount of eddy current in the magnetic field that restraining coil produces in brake axle, produce retarding torque, consume generator energy, and then realize braking object.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to the protection domain of invention.
Claims (5)
1. the slurry generator of eddy-current brake, is characterized in that, comprises, mud impeller, impeller housing, generator amature, resistance to compression housing and electricity generator stator coil; Endoporus is offered in described impeller housing inside, corresponding to the external diameter of described resistance to compression housing, is coaxially flexibly connected with described resistance to compression housing; Endoporus is offered in the inside of resistance to compression housing, and described mud impeller is connected with the external stability of described impeller housing, and described generator amature is fixedly connected with the inwall of described impeller housing, and described electricity generator stator coil is fixedly connected with the endoporus of described resistance to compression housing; When impeller housing is around resistance to compression housing into rotation under mud drives for described mud impeller, described generator amature rotates around described electricity generator stator coil, and described electricity generator stator coil is generated electricity.
2. the slurry generator of eddy-current brake according to claim 1, is characterized in that, endoporus one end of described impeller housing is flexibly connected by TC bearing with between described resistance to compression housing.
3. the slurry generator based on eddy-current brake according to claim 1 and 2, is characterized in that, also comprise, tachogenerator, brake rotors, restraining coil and control circuit; Described restraining coil and control circuit are fixedly connected with the endoporus of described resistance to compression housing, and described tachogenerator is fixedly connected with the outer wall of described resistance to compression housing; The endoporus corresponding position of described impeller housing fixes described brake rotors; The input end of described control circuit is connected with the induction output terminal of described tachogenerator, output terminal is connected with described restraining coil, if the current current rotating speed received from described tachogenerator is greater than setting value, described restraining coil is then driven to be energized, by the moment of torsion that described restraining coil and described brake rotors produce, described impeller housing is braked.
4. the slurry generator of eddy-current brake according to claim 2, is characterized in that, the other end of the endoporus of described impeller housing is flexibly connected by TC bearing with between described resistance to compression housing.
5. the slurry generator of eddy-current brake according to claim 1, is characterized in that, also comprises: high-pressure sealing jack, and described high-pressure sealing jack is fixedly connected with the both sides of described resistance to compression housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466602.6A CN104675611A (en) | 2014-09-12 | 2014-09-12 | Mud generator with eddy-current brake function and outer rotors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410466602.6A CN104675611A (en) | 2014-09-12 | 2014-09-12 | Mud generator with eddy-current brake function and outer rotors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675611A true CN104675611A (en) | 2015-06-03 |
Family
ID=53311086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410466602.6A Pending CN104675611A (en) | 2014-09-12 | 2014-09-12 | Mud generator with eddy-current brake function and outer rotors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675611A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246444A (en) * | 2016-08-09 | 2016-12-21 | 北京精密机电控制设备研究所 | A kind of composite excitation formula slurry generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020041100A1 (en) * | 2000-09-06 | 2002-04-11 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Small-sized hydroelectric power generating apparatus |
| JP2003213657A (en) * | 2002-01-22 | 2003-07-30 | Hitachi Zosen Corp | Water turbine type gate device |
| CN2688535Y (en) * | 2004-04-10 | 2005-03-30 | 嘉兴市纽曼机械有限公司 | Electric vortex speed limitor |
| CN101662182A (en) * | 2008-08-28 | 2010-03-03 | 于波 | Direct-drive composite-excitation type hydroelectric generator |
| CN102121456B (en) * | 2011-01-21 | 2013-01-02 | 中科恒源科技股份有限公司 | Strong breeze resisting minitype wind driven generator |
| CN103401325A (en) * | 2013-07-08 | 2013-11-20 | 杭州爱纬斯电子有限公司 | Generator with internal ventilating perpendicular pipe shaft continuous structure |
-
2014
- 2014-09-12 CN CN201410466602.6A patent/CN104675611A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020041100A1 (en) * | 2000-09-06 | 2002-04-11 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Small-sized hydroelectric power generating apparatus |
| JP2003213657A (en) * | 2002-01-22 | 2003-07-30 | Hitachi Zosen Corp | Water turbine type gate device |
| CN2688535Y (en) * | 2004-04-10 | 2005-03-30 | 嘉兴市纽曼机械有限公司 | Electric vortex speed limitor |
| CN101662182A (en) * | 2008-08-28 | 2010-03-03 | 于波 | Direct-drive composite-excitation type hydroelectric generator |
| CN102121456B (en) * | 2011-01-21 | 2013-01-02 | 中科恒源科技股份有限公司 | Strong breeze resisting minitype wind driven generator |
| CN103401325A (en) * | 2013-07-08 | 2013-11-20 | 杭州爱纬斯电子有限公司 | Generator with internal ventilating perpendicular pipe shaft continuous structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246444A (en) * | 2016-08-09 | 2016-12-21 | 北京精密机电控制设备研究所 | A kind of composite excitation formula slurry generator |
| CN106246444B (en) * | 2016-08-09 | 2018-10-09 | 北京精密机电控制设备研究所 | A kind of composite excitation formula slurry generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103607068B (en) | Top-drive drilling slowspeed machine direct drive mechanism | |
| CA2849814A1 (en) | Downhole rotating magnetic field generator | |
| CN202172357U (en) | Intelligent protective type disc electromagnetic coupling | |
| CN105350958A (en) | Self power generating slurry turbine type pulse generator | |
| CN110067543B (en) | A kind of injection well downhole flow regulator for realizing switch by electromagnetic drive | |
| CN205154151U (en) | Mud turbine formula impulse generator from electricity generation | |
| CN103414313B (en) | Centrifugal magnetic transmission device | |
| CN203640919U (en) | Underground turbine generator | |
| NO20141049A1 (en) | DOWN HOLE DRILL | |
| CN104675611A (en) | Mud generator with eddy-current brake function and outer rotors | |
| CN201269096Y (en) | Down-hole electric generating apparatus | |
| CN103178660B (en) | The driving motor of a kind of temperature sensor easy care and excess temperature protection method thereof | |
| CN205172568U (en) | Carrier frequency is self -adjusting from generating electricity positive impulse generator of formula continuous wave | |
| CN204490391U (en) | Oil-well rig external rotor permanent magnet synchronous machine direct-drive winch | |
| CN203438203U (en) | Electric tool | |
| CN204408066U (en) | For the compact(ing) machine of hybrid vehicle | |
| CN103470433A (en) | Underground mud power generation device | |
| CN105429426B (en) | A kind of magnetism-gathering magnetic mechanical couple | |
| CN103855892A (en) | Permanent magnet synchronous motor device directly driving drill bit | |
| CN203486813U (en) | Winch device directly driven by low-speed permanent magnet synchronous motor | |
| CN206016672U (en) | Rotating disk fluid pressure drive device | |
| CN201435707Y (en) | Oil-submersible servo-driven system | |
| CN203406737U (en) | Direct-drive turn plate for oil drilling rigs and well work-over rigs | |
| CN201345582Y (en) | Multi-stage cascade alternating current servo motor | |
| CN201193186Y (en) | Frequency converter for electric well-repairing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150603 |