CN106014835A - Birotor reverse loading mixed flow hydraulic generator - Google Patents

Birotor reverse loading mixed flow hydraulic generator Download PDF

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Publication number
CN106014835A
CN106014835A CN201610469078.7A CN201610469078A CN106014835A CN 106014835 A CN106014835 A CN 106014835A CN 201610469078 A CN201610469078 A CN 201610469078A CN 106014835 A CN106014835 A CN 106014835A
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China
Prior art keywords
rotary cover
runner
birotor
armature
flow
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CN201610469078.7A
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Chinese (zh)
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郭远军
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Individual
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Priority to CN201610469078.7A priority Critical patent/CN106014835A/en
Publication of CN106014835A publication Critical patent/CN106014835A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/02—Machines or engines of reaction type; Parts or details peculiar thereto with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/20—Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7066—Application in combination with an electrical generator via a direct connection, i.e. a gearless transmission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/20—Heat transfer, e.g. cooling
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention discloses a birotor reverse loading mixed flow hydraulic generator. The birotor reverse loading mixed flow hydraulic generator comprises an armature mechanism, an excitation mechanism, a seal cover body mechanism, a draft tube, a guide vane mechanism, a first runner, a second runner and a volute. The volute, the guide vane mechanism, the first runner, the second runner and the draft tube forms a water flow channel sequentially. The seal cover body mechanism comprises a first rotary cover and a second rotary cover. The first rotary cover and the second rotary cover are coaxially connected through a seal bearing to form a closed annular cavity. The first rotary cover is located above the second rotary cover. The armature mechanism and the excitation mechanism are installed in the annular cavity coaxially in parallel in an inner-outer layer mode. The excitation mechanism is installed on the outer diameter side in the first rotary cover. The armature mechanism is installed on the inner in the second rotary cover. The birotor reverse loading mixed flow hydraulic generator is long in life, low in construction cost and production management cost and high in water power conversion efficiency.

Description

It is a kind of that birotor is counter fills mixed-flow wheel electromotor
Technical field
The present invention relates to hydroelectric facility field, particularly relate to that a kind of birotor is counter fills mixed-flow wheel electromotor.
Background technology
Hydroturbine generator can be divided into impulse turbine and the big class of reaction turbine two by operation principle.The runner of impulse turbine is rotated by the impact of current, and in work process, the pressure of current is constant, mainly the conversion of kinetic energy；The runner of reaction turbine is rotated by the counteracting force of current in water, in work process current pressure can and kinetic energy all change, but mainly pressure can conversion.
Impulse turbine, owing to its active wheel only part crosses water, part bucket stress, therefore such hydraulic turbine necessary flow is less, is relatively suitable for the generating place of low discharge high water head.Impulse turbine, can be divided into the formula of hitting of cutting (also known as bucket-type) and tilt-impulse type two class by the flow direction of current, and under the conditions of isometrical water wheels, the stress arm of force cutting the formula of hitting is relatively big relative to tilt-impulse type, but it is relatively small to run water wheels rotating speed.
Reaction turbine can be divided into mixed-flow, axial-flow type, diagonal flow type and tubular.In Francis turbine, current, radially into stator mechanism, axially flow out runner；In axial flow hydraulic turbine, current radially into stator, axially into flow out runner；In inclined flow turbine, current flow to runner radially into stator favouring the direction of a certain angle of main shaft, or flow to stator and runner to favour the direction of main shaft；In tubular turbine, current flow to stator and runner vertically.Axial-flow type, tubular and inclined flow turbine also can be divided into by its structure determines paddle and rotary propeller type.The runner bucket determining paddle is fixing；The runner bucket of rotary propeller type can be in operation and rotate, to adapt to the change of head and load around sharf.Currently used relatively broad mainly axial-flow type and Francis turbine.
The generally existing problem of the existing hydraulic turbine is: 1) impeller of the hydraulic turbine need to be by longer transmission shaft driven with electromotor and excitation electromotor, and generally, installation for the ease of power transmission shaft is changed, power transmission shaft junction can use Flange joint, simultaneously in order to maintain power transmission shaft stable rotation, avoid eccentric rotary, multiple bearing can be set in the junction of rotating shaft and middle part, bearing increase the friction energy-dissipating that can strengthen in rotation process, bearing easily burns out because of temperature arrising caused by friction, and longer power transmission shaft is when there is eccentric rotary, it is easily caused and electromotor is caused damage；2) electromotor and the exciter of existing hydroturbine generator can produce substantial amounts of used heat at work (mainly by heavy current heat production in wire, and bearing pivoting friction heat production), need special heat radiation is installed, cooling system, work as heat radiation, when cooling system goes wrong, it is easily caused movement, bearing burns out, even if under cooling system normally works, owing to stator and rotor are interior, outer layer is distributed, it is positioned at used heat that the rotor of internal layer produces and need to be transmitted to the external world by stator and rotor every space gap layer, little every the heat conduction rate of space gap layer, the bigger temperature difference is there is in internal layer rotor with outer layer stator, internal layer rotor easily burns；3) the existing hydraulic turbine, owing to existing in flow energy utilization, bigger water flow dynamic energy is remaining and frictional heat is lost, and the utilization rate of flow energy is relatively low, present stage, and the relatively high stable efficiency of axial flow hydraulic turbine is only 90%；4) existing often group hydrogenerator is all the customization machine for different terrain, causes raw material, assembly, wire rod and the parts can not be general, it is impossible to enough batch productions；5) needing to bear the stress of higher temperature or bigger due to the parts such as the stator in hydrogenerator, rotor, salient pole, power transmission shaft, the parts such as its stator, rotor, salient pole, power transmission shaft require height to the strength of materials.Above-mentioned factor causes bigger input cost and production management's cost to the construction in power station, and power station production production capacity is relatively low, and the small-sized available hydraulic power potentials of part is wasted.
Summary of the invention
The technical problem to be solved is: 1) in existing hydroturbine generator, power transmission shaft and bearing are owing to stress is relatively big, friction product temperature is higher, and its loss is bigger；2) electromotor and the exciter of existing hydroturbine generator can produce substantial amounts of used heat at work, needs to install special cooling system, and the cooling effect of its cooling system is not good enough, easily burn movement；3) the relatively high stable efficiency of the existing hydraulic turbine is only about 90%；4) existing hydrogenerator is all the customization machine for different terrain, and volume exists larger difference, it is impossible to enough batch productions；5) parts such as the stator in hydrogenerator, rotor, salient pole, power transmission shaft require height to the strength of materials.
For solving its technical problem the technical solution adopted in the present invention it is: a kind of birotor is counter fills mixed-flow wheel electromotor, including armature mechanism, excitation mechanism, seal closure body mechanism, draft tube, stator mechanism, the first runner, the second runner and spiral case；Spiral case, stator mechanism, the first runner, the second runner and draft tube constitute water stream channel successively；
Seal closure body mechanism includes that the first rotary cover and the second rotary cover, the first rotary cover and the second rotary cover connect and compose the toroidal cavity of closing coaxially through sealing bearing, and the first rotary cover is positioned at the top of the second rotary cover；
Armature mechanism inside and outside layer coaxial with excitation mechanism is arranged in toroidal cavity side by side；
Excitation mechanism is arranged on the outside diameter in the first rotary cover, and armature mechanism is arranged on the internal side diameter in the second rotary cover；
Armature mechanism includes the first armature winding and the second armature winding, the first armature winding and the second armature winding coaxial upper and lower layer annular spread internal side diameter in the second rotary cover；
Excitation mechanism includes the first Exciting Windings for Transverse Differential Protection and the second Exciting Windings for Transverse Differential Protection, the first Exciting Windings for Transverse Differential Protection and the second coaxial upper and lower layer annular spread of the Exciting Windings for Transverse Differential Protection outside diameter in the first rotary cover；
The lower ring excircle of the first runner is fixing connects the first rotary cover inner periphery, and the excircle of the second runner fixes the inner periphery connecting the second rotary cover, and the lower section of the second rotary cover is arranged on draft tube upper end by spring bearing；
The blade axial angle of the first runner is contrary with the blade axial angle of the second runner, and the hydro-flow thrust moment that the first runner and the second runner are subject to is contrary.
As optimizing explanation further, being provided with conduction brush at the joint gap of described first rotary cover and the second rotary cover, conduction brush is for the input of exciting current.
As optimizing further, the position, gap of described draft tube and stator mechanism and the first rotary cover arranges ceramic seal bearing；This kind of structure can improve the sealing of toroidal cavity, improves the working environment sealing bearing, reduces the stress load sealing bearing, reduces the second rotary cover and the friction of the first rotary cover.
As optimizing further, in order to have more preferable water resistance, described first rotary cover and the second junction, rotary cover corner are provided with the folding shape centrifugal drying waterside ring cooperated, and the clearance aperture of folding shape centrifugal drying waterside ring is radially outward.
As optimizing further, in order to preferably strengthen water dumping effect and the wearability of folding shape centrifugal drying waterside ring, in the ring of described folding shape centrifugal drying waterside, it is also equipped with resin wear ring.
Operation principle: the described birotor of this invention is counter fills mixed-flow wheel electromotor, during work, current are through the guiding of stator mechanism and control, flow into the first runner, first runner drives the first rotary cover common rotation under the driving of water flow pressure, simultaneously, after current flow through the first runner, flow into the second runner again, second runner drives the second rotary cover to rotate with opposite direction under water flow pressure effect, first Exciting Windings for Transverse Differential Protection and the second Exciting Windings for Transverse Differential Protection rotate with bigger relative speed with the first armature winding and the second armature winding, first Exciting Windings for Transverse Differential Protection and the second Exciting Windings for Transverse Differential Protection are respectively cut the first armature winding and the coil of the second armature winding, the electric current of the first armature winding is powered for excitation, second armature winding is used for exporting.
Birotor of the present invention is counter fills mixed-flow wheel electromotor, its first armature winding and the second armature winding are internally positioned, first Exciting Windings for Transverse Differential Protection and the second Exciting Windings for Transverse Differential Protection are externally-located, this kind of structure distribution is contrary with the distribution of Exciting Windings for Transverse Differential Protection with armature winding in existing conventional generator, namely anti-assembling structure pattern, this kind of anti-Exciting Windings for Transverse Differential Protection filling mixed-flow wheel electromotor of birotor has bigger distribution area, the magnetic field that each Exciting Windings for Transverse Differential Protection terminal produces influences each other less, magnetic field distribution amplitude is relatively big, has preferable excitation efficiency.
Birotor of the present invention is counter fills mixed-flow wheel electromotor, owing to its armature mechanism and excitation mechanism are directly arranged between draft tube and runner by seal closure body mechanism, the used heat that power generation operation process produces can directly reject heat in current by the first rotary cover and the second rotary cover, effectively eliminates special cold true cooling system.
Birotor of the present invention is counter fills mixed-flow wheel electromotor, rotor structure pattern relative to conventional generator, in terms of heat radiation, its heat conduction without by between rotor and stator every dead level, its armature mechanism and excitation mechanism used heat can directly reject heat in current, compare existing electromotor and there is more preferable radiating effect, the problem burning movement can be prevented effectively from, increase the service life of equipment；In terms of energy usefulness, its current rate of discharge is little, and water energy conversion ratio is high.
Beneficial effect: the anti-mixed-flow wheel electromotor that fills of birotor of the present invention, effectively eliminates the cold true cooling system of routine, has more preferable radiating effect, can be prevented effectively from the problem burning movement, increases the service life of equipment；Simultaneously, owing to armature mechanism, excitation mechanism are integrated with runner, power transmission is without by power transmission shaft parts transmission, the anti-mixed-flow wheel generating function that fills of birotor of the present invention effectively avoids power transmission shaft eccentricity issues and bearing friction energy consumption issues, simplify the structure of hydroturbine generator, reduce material requirements, reduce equipment volume largely, the versatility of enhancing equipment, reduces power plant construction cost and production management's cost.
Additionally, the anti-mixed-flow wheel electromotor that fills of birotor of the present invention has higher transmission efficiency, the stabilization efficiency of its hydraulic turbine generator is up to more than 95%.
Accompanying drawing explanation
Fig. 1 is the vertical cross section TV structure schematic diagram of the present invention program one；
Fig. 2 is the horizontal cross-sectional structural representation of the A-A section of the present invention program one；
Fig. 3 is the horizontal cross-sectional structural representation in the B-B section face of the present invention program one；
Fig. 4 is the vertical cross section TV structure schematic diagram of the present invention program two；
Fig. 5 is to roll over shape centrifugal drying waterside ring structure enlarged diagram in the present invention program two；
Fig. 6 is to roll over shape centrifugal drying waterside ring structure enlarged diagram in the present invention program three；
In figure: 1 is armature mechanism, 11 is the first armature winding, 12 is the second armature winding, 2 is excitation mechanism, 21 is the first Exciting Windings for Transverse Differential Protection, 22 is the second Exciting Windings for Transverse Differential Protection, 3 is seal closure body mechanism, 31 is the first rotary cover, 32 is the second rotary cover, 33 for sealing bearing, 34 is toroidal cavity, 35 is ceramic seal bearing, 36 is folding shape centrifugal drying waterside ring, 37 is resin wear ring, 4 is draft tube, 5 is stator mechanism, 6a is the first runner, 6b is the second runner, 7 is spiral case, 8 is conduction brush.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described；Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Scheme one (as shown in Figure 1, Figure 2 and Figure 3): a kind of birotor is counter fills mixed-flow wheel electromotor, including armature mechanism 1, excitation mechanism 2, seal closure body mechanism 3, draft tube 4, stator mechanism the 5, first runner 6a, the second runner 6b and spiral case 7；Spiral case 7, stator mechanism the 5, first runner 6a, the second runner 6b and draft tube 4 constitute water stream channel successively；
Seal closure body mechanism 3 includes that the first rotary cover 31 and the second rotary cover 32, the first rotary cover 31 and the second rotary cover 32 connect and compose the toroidal cavity 34 of closing coaxially through sealing bearing 33, and the first rotary cover 31 is positioned at the top of the second rotary cover 32；
Armature mechanism 1 inside and outside layer coaxial with excitation mechanism 2 is arranged in toroidal cavity 34 side by side；
Excitation mechanism 2 is arranged on the outside diameter in the first rotary cover 31, and armature mechanism 1 is arranged on the internal side diameter in the second rotary cover 32；
Armature mechanism 1 includes the first armature winding 11 and the second armature winding 12, the first armature winding 11 and the second armature winding 12 coaxial upper and lower layer annular spread internal side diameter in the second rotary cover 32；
Excitation mechanism 2 includes the first Exciting Windings for Transverse Differential Protection 21 and the second Exciting Windings for Transverse Differential Protection 22, the first Exciting Windings for Transverse Differential Protection 21 and the second coaxial upper and lower layer annular spread of Exciting Windings for Transverse Differential Protection 22 outside diameter in the first rotary cover 31；
The lower ring excircle of the first runner 6a is fixing connects the first rotary cover 31 inner periphery, and the excircle of the second runner 6b fixes the inner periphery connecting the second rotary cover 32, and the lower section of the second rotary cover 32 is arranged on draft tube 4 upper end by spring bearing；
The blade axial angle of the first runner 6a is contrary with the blade axial angle of the second runner 6b, and the hydro-flow thrust moment that the first runner 6a and the second runner 6b is subject to is contrary；
Being provided with conduction brush 8 at the joint gap of the first rotary cover 32 and the second rotary cover 33, conduction brush 8 is used for being conductively connected extraneous rectifying installation and excitation mechanism 2.
As further illustrating, in order to reduce the friction that the first rotary cover 32 is subject to, improving its sealing, the position, gap of described stator mechanism 5 and the first rotary cover 32 arranges ceramic seal bearing 35 simultaneously.
By such scheme one embodiment, the anti-stabilization efficiency of mixed-flow wheel electromotor that fills of described birotor, up to 95%, compares traditional axial flow type hydro-turbo generator, and efficiency improves about 7%.
Scheme two (as shown in Figure 4 and Figure 5): be with scheme one difference: in order to have more preferable water resistance, described first rotary cover 32 is connected edge and is provided with the folding shape centrifugal drying waterside ring 36 cooperated with the second rotary cover 33, and the clearance aperture of folding shape centrifugal drying waterside ring 36 is radially outward.
Scheme three (as shown in Figure 6): be with scheme one difference: in order to preferably strengthen water dumping effect and the wearability of folding shape centrifugal drying waterside ring 36, be also equipped with resin wear ring 37 in described folding shape centrifugal drying waterside ring 36.
Last it is noted that the foregoing is only the preferred embodiments of the present invention; it is not limited to the present invention; although the present invention being described in detail with reference to previous embodiment; for a person skilled in the art; technical scheme described in foregoing embodiments still can be modified by it; or wherein portion of techniques feature is carried out equivalent; all within the spirit and principles in the present invention; the any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (5)

  1. null1. a birotor is counter fills mixed-flow wheel electromotor，Including armature mechanism (1)、Excitation mechanism (2)、Seal closure body mechanism (3)、Draft tube (4)、Stator mechanism (5)、First runner (6a)、Second runner (6b) and spiral case (7)，Spiral case (7)、Stator mechanism (5)、First runner (6a)、Second runner (6b) and draft tube (4) constitute water stream channel successively，Seal closure body mechanism (3) includes the first rotary cover (31) and the second rotary cover (32)，First rotary cover (31) and the second rotary cover (32) connect and compose the toroidal cavity (34) of closing coaxially through sealing bearing (33)，First rotary cover (31) is positioned at the top of the second rotary cover (32)，Armature mechanism (1) and excitation mechanism (2) are coaxially interior、Outer layer is arranged in toroidal cavity (34) side by side，Excitation mechanism (2) is arranged on the outside diameter in the first rotary cover (31)，Armature mechanism (1) is arranged on the internal side diameter in the second rotary cover (32)，Armature mechanism (1) includes the first armature winding (11) and the second armature winding (12)，First armature winding (11 and second armature winding (12) coaxial on、Lower floor's annular spread internal side diameter in the second rotary cover (32)，Excitation mechanism (2) includes the first Exciting Windings for Transverse Differential Protection (21) and the second Exciting Windings for Transverse Differential Protection (22)，On first Exciting Windings for Transverse Differential Protection (21) is coaxial with the second Exciting Windings for Transverse Differential Protection (22)、Lower floor's annular spread outside diameter in the first rotary cover (31)，The lower ring excircle of the first runner (6a) is fixing connects the first rotary cover (31) inner periphery，The fixing inner periphery connecting the second rotary cover (32) of the excircle of the second runner (6b)，The lower section of the second rotary cover (32) is arranged on draft tube (4) upper end by spring bearing，The blade axial angle of the first runner (6a) is contrary with the blade axial angle of the second runner (6b)，The hydro-flow thrust moment that first runner (6a) is subject to the second runner (6b) is contrary.
  2. Birotor the most according to claim 1 is counter fills mixed-flow wheel electromotor, it is characterised in that: described first rotary cover (31) is provided with conduction brush (8) at the joint gap of the second rotary cover (32).
  3. Birotor the most according to claim 2 is counter fills mixed-flow wheel electromotor, it is characterised in that: described first rotary cover (31) is provided with ceramic seal bearing (35) with the position, gap of draft tube (4) and the position, gap of the first rotary cover (31) and stator mechanism (5).
  4. Birotor the most according to claim 3 is counter fills mixed-flow wheel electromotor, it is characterized in that: described first rotary cover (31) and the second rotary cover (32) junction, corner are provided with folding shape centrifugal drying waterside ring (36) cooperated, and the clearance aperture of folding shape centrifugal drying waterside ring (36) is radially outward.
  5. Birotor the most according to claim 4 is counter fills mixed-flow wheel electromotor, it is characterised in that: it is also equipped with resin wear ring (37) in described folding shape centrifugal drying waterside ring (36).
CN201610469078.7A 2016-06-25 2016-06-25 Birotor reverse loading mixed flow hydraulic generator Withdrawn CN106014835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610469078.7A CN106014835A (en) 2016-06-25 2016-06-25 Birotor reverse loading mixed flow hydraulic generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610469078.7A CN106014835A (en) 2016-06-25 2016-06-25 Birotor reverse loading mixed flow hydraulic generator

Publications (1)

Publication Number Publication Date
CN106014835A true CN106014835A (en) 2016-10-12

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ID=57086980

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610469078.7A Withdrawn CN106014835A (en) 2016-06-25 2016-06-25 Birotor reverse loading mixed flow hydraulic generator

Country Status (1)

Country Link
CN (1) CN106014835A (en)

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