CN106014774A - Integrated annular assembling efficient excitation mixed-flow type hydraulic generator - Google Patents

Integrated annular assembling efficient excitation mixed-flow type hydraulic generator Download PDF

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Publication number
CN106014774A
CN106014774A CN201610468635.3A CN201610468635A CN106014774A CN 106014774 A CN106014774 A CN 106014774A CN 201610468635 A CN201610468635 A CN 201610468635A CN 106014774 A CN106014774 A CN 106014774A
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China
Prior art keywords
armature
cover
excitation
armature winding
ring
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CN201610468635.3A
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Chinese (zh)
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郭远军
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Individual
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Priority to CN201610468635.3A priority Critical patent/CN106014774A/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 an integrated annular assembling efficient excitation mixed-flow type hydraulic generator which comprises a first armature mechanism, a second armature mechanism, an excitation mechanism, a sealing cover mechanism, a draft tube, a guide vane mechanism, a turning wheel and a volute. The volute, the guide vane mechanism, the turning wheel and the draft tube sequentially form a water flow channel; the sealing cover mechanism comprises a rotary cover and a fixed cover; the rotary cover and the fixed cover are coaxially connected through a sealing bearing to form a closed annular cavity; the first armature mechanism, the excitation mechanism and the second armature mechanism are sequentially and coaxially installed inside the annular cavity in parallel in an inner, middle and outer layer mode; the excitation mechanism is installed in the middle in the rotary cover; the first armature mechanism is installed on the inner-diameter side in the fixed cover; and the second armature mechanism is installed on the outer-diameter side inside the fixed cover. The integrated annular assembling efficient excitation mixed-flow type hydraulic generator is long in service life, low in building cost and production and management cost, high in excitation efficiency and high in water energy conversion efficiency.

Description

A kind of integrated ring fills efficient excitation mixed-flow wheel electromotor
Technical field
The present invention relates to hydroelectric facility field, particularly relate to a kind of integrated ring and fill efficient excitation 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；6) magnetic pole of Exciting Windings for Transverse Differential Protection is only capable of utilizing a wherein magnetic pole, and excitation efficiency is relatively low, and excitation energy consumption is bigger.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；6) excitation efficiency of Exciting Windings for Transverse Differential Protection is low.
For solving its technical problem the technical solution adopted in the present invention it is: a kind of integrated ring fills efficient excitation mixed-flow wheel electromotor, including the first armature mechanism, the second armature mechanism, excitation mechanism, seal closure body mechanism, draft tube, stator mechanism, runner and spiral case；Spiral case, stator mechanism, runner and draft tube constitute water stream channel successively；
Seal closure body mechanism includes rotary cover and fixes cover, and rotary cover and fixing cover connect and compose the toroidal cavity of closing coaxially through sealing bearing；
First armature mechanism, excitation mechanism and the second armature mechanism sequentially coaxially inner, middle and outer layer are arranged in toroidal cavity side by side；
Excitation mechanism is arranged on the middle part in rotary cover, and the first armature mechanism is arranged on the internal side diameter in fixing cover, and the second armature mechanism is arranged on the outside diameter in fixing cover；
First 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 fixing cover；
Second armature mechanism includes the 3rd armature winding and the 4th armature winding, the 3rd armature winding and the 4th armature winding coaxial upper and lower layer annular spread outside diameter in fixing cover；
Excitation mechanism includes the first Exciting Windings for Transverse Differential Protection and the second Exciting Windings for Transverse Differential Protection, and the first Exciting Windings for Transverse Differential Protection and the second coaxial upper and lower layer annular spread of Exciting Windings for Transverse Differential Protection be middle part in rotary cover；
The lower ring excircle of runner is fixing connects rotary cover inner periphery, and fixing cover is fixedly mounted on draft tube upper end；
As optimizing explanation further, described rotary cover is provided with conduction brush at the joint gap of fixing cover, and conduction brush is for the input of exciting current.
As optimizing further, the position, gap of described draft tube and stator mechanism and 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 friction of fixing cover and rotary cover.
As optimizing further, in order to have more preferable water resistance, described rotary cover and junction, fixing flaring angle 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 integrated ring of this invention fills efficient excitation mixed-flow wheel electromotor, during work, current are through the guiding of stator mechanism and control, flow into runner, runner is rotated cover common rotation under the driving of water flow pressure, rotary cover drives the first Exciting Windings for Transverse Differential Protection and the second Exciting Windings for Transverse Differential Protection to rotate, the upper end magnetic pole of the first Exciting Windings for Transverse Differential Protection and the second Exciting Windings for Transverse Differential Protection is respectively cut the first armature winding and the coil of the second armature winding, the lower end magnetic pole of the first Exciting Windings for Transverse Differential Protection and the second Exciting Windings for Transverse Differential Protection is respectively cut the 3rd armature winding and the 4th armature winding, the electric current of the first armature winding and the 3rd armature winding is powered for excitation, second armature winding and the 4th armature winding are used for exporting.
Integrated ring of the present invention fills efficient excitation mixed-flow wheel electromotor, owing to its first 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 rotary cover and fixing cover, effectively eliminates special cold true cooling system.And, integrated ring of the present invention fills efficient excitation mixed-flow wheel electromotor, rotor structure pattern relative to conventional generator, its heat conduction without by between rotor and stator every dead level, its first armature mechanism and excitation mechanism used heat can directly reject heat in current, compare existing generator heat-radiation mode, have more preferable radiating effect, the problem burning movement can be prevented effectively from, increase the service life of equipment.
Additionally, due to the magnetic flux of two magnetic poles of generating Exciting Windings for Transverse Differential Protection is all used in cutting generator armature winding, under equal exciting current, the relatively conventional excitation mode of excitation efficiency doubles
Beneficial effect: integrated ring of the present invention fills efficient excitation mixed-flow wheel electromotor, 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 the first armature mechanism, excitation mechanism are integrated with runner, power transmission is without by power transmission shaft parts transmission, integrated ring of the present invention fills efficient excitation mixed-flow wheel generating function and 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, integrated ring of the present invention fills efficient excitation mixed-flow wheel electromotor has higher transmission efficiency, the stabilization efficiency of its hydraulic turbine generator is up to more than 93%, and excitation efficiency is high.
Accompanying drawing explanation
Fig. 1 is the vertical cross section TV structure schematic diagram of the present invention program one；
Fig. 2 is the upper level sectional structure schematic diagram of the present invention program one；
Fig. 3 is the lower horizontal sectional structure schematic diagram 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: 1a is the first armature mechanism, 11a is the first armature winding, 12a is the second armature winding, 1b is the second armature mechanism, 11b is the 3rd armature winding, 12b is the 4th 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 rotary cover, 32 is fixing 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, 6 is 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 integrated ring fills efficient excitation mixed-flow wheel electromotor, including the first armature mechanism 1a, the second armature mechanism 1b, excitation mechanism 2, seal closure body mechanism 3, draft tube 4, stator mechanism 5, runner 6 and spiral case 7；Spiral case 7, stator mechanism 5, runner 6 and draft tube 4 constitute water stream channel successively；
Seal closure body mechanism 3 includes that rotary cover 31 and fixing cover 32, rotary cover 31 and fixing cover 32 connect and compose the toroidal cavity 34 of closing coaxially through sealing bearing 33；
First armature mechanism 1a, excitation mechanism 2 and the second armature mechanism 1b sequentially coaxially inner, middle and outer layer are arranged in toroidal cavity 34 side by side；
Excitation mechanism 2 is arranged on the middle part in rotary cover 31, and the first armature mechanism 1a is arranged on the internal side diameter in fixing cover 32, and the second armature mechanism 1b is arranged on the outside diameter in fixing cover 32；
First armature mechanism 1a includes the first armature winding 11a and the second armature winding 12a, the first armature winding 11a and the second armature winding 12a coaxial upper and lower layer annular spread internal side diameter in fixing cover 32；
Second armature mechanism 1b includes the 3rd armature winding 11b and the 4th armature winding 12b, the 3rd armature winding 11b and the 4th armature winding 12b coaxial upper and lower layer annular spread outside diameter in fixing 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, and 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 be middle part in rotary cover 31；
Fixing rotary cover 31 inner periphery that connects of the lower ring excircle of runner 6, fixing cover 32 is fixedly mounted on draft tube 4 upper end；
Rotary cover 32 is provided with conduction brush 8 at the joint gap of fixing cover 33, and 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 rotary cover 32 is subject to, improving its sealing, described stator mechanism 5 arranges ceramic seal bearing 35 with the position, gap of rotary cover 32 simultaneously.
By such scheme one embodiment, described integrated ring fills the stabilization efficiency of efficient excitation mixed-flow wheel electromotor up to 93%, compares traditional axial flow type hydro-turbo generator, and efficiency improves about 4%.
Scheme two (as shown in Figure 4 and Figure 5): be with scheme one difference: in order to have more preferable water resistance, described rotary cover 32 is connected edge and is provided with the folding shape centrifugal drying waterside ring 36 cooperated with fixing 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. integrated ring fills an efficient excitation mixed-flow wheel electromotor, including the first armature mechanism (1a), the second armature mechanism (1b), excitation mechanism (2), seal closure body mechanism (3), draft tube (4), stator mechanism (5), runner (6) and spiral case (7)；nullSpiral case (7)、Stator mechanism (5)、Runner (6) and draft tube (4) constitute water stream channel successively，Seal closure body mechanism (3) includes rotary cover (31) and fixing cover (32)，Rotary cover (31) and fixing cover (32) connect and compose the toroidal cavity (34) of closing coaxially through sealing bearing (33)，First armature mechanism (1a)、Excitation mechanism (2) and the second armature mechanism (1b) are sequentially coaxially interior、In、Outer layer is arranged in toroidal cavity (34) side by side，Excitation mechanism (2) is arranged on the middle part in rotary cover (31)，First armature mechanism (1a) is arranged on the internal side diameter in fixing cover (32)，Second armature mechanism (1b) is arranged on the outside diameter in fixing cover (32)，First armature mechanism (1a) includes the first armature winding (11a) and the second armature winding (12a)，On first armature winding (11a) and the second armature winding (12a) are coaxial、Lower floor's annular spread internal side diameter in fixing cover (32)，Second armature mechanism (1b) includes the 3rd armature winding (11b) and the 4th armature winding (12b)，On 3rd armature winding (11b) and the 4th armature winding (12b) are coaxial、Lower floor's annular spread outside diameter in fixing 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 is middle part in rotary cover (31)，The lower ring excircle of runner (6) is fixing connects rotary cover (31) inner periphery，Fixing cover (32) is fixedly mounted on draft tube (4) upper end.
Integrated ring the most according to claim 1 fills efficient excitation mixed-flow wheel electromotor, it is characterised in that: described rotary cover (31) is provided with conduction brush (8) at the joint gap of fixing cover (32).
Integrated ring the most according to claim 2 fills efficient excitation mixed-flow wheel electromotor, it is characterised in that: described rotary cover (31) is provided with ceramic seal bearing (35) with the position, gap of draft tube (4) and the position, gap of rotary cover (31) and stator mechanism (5).
Integrated ring the most according to claim 3 fills efficient excitation mixed-flow wheel electromotor, it is characterized in that: described rotary cover (31) is provided with, with fixing cover (32) junction, corner, folding shape centrifugal drying waterside ring (36) cooperated, and the clearance aperture of folding shape centrifugal drying waterside ring (36) is radially outward.
Integrated ring the most according to claim 4 fills efficient excitation 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).
CN201610468635.3A 2016-06-25 2016-06-25 Integrated annular assembling efficient excitation mixed-flow type hydraulic generator Pending CN106014774A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610468635.3A CN106014774A (en) 2016-06-25 2016-06-25 Integrated annular assembling efficient excitation mixed-flow type hydraulic generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610468635.3A CN106014774A (en) 2016-06-25 2016-06-25 Integrated annular assembling efficient excitation mixed-flow type hydraulic generator

Publications (1)

Publication Number Publication Date
CN106014774A true CN106014774A (en) 2016-10-12

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CN201610468635.3A Pending CN106014774A (en) 2016-06-25 2016-06-25 Integrated annular assembling efficient excitation mixed-flow type hydraulic generator

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Application publication date: 20161012