CN114567120A - Outer rotor permanent magnet hydraulic generator and hydraulic generator set - Google Patents

Outer rotor permanent magnet hydraulic generator and hydraulic generator set Download PDF

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Publication number
CN114567120A
CN114567120A CN202210157831.4A CN202210157831A CN114567120A CN 114567120 A CN114567120 A CN 114567120A CN 202210157831 A CN202210157831 A CN 202210157831A CN 114567120 A CN114567120 A CN 114567120A
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CN
China
Prior art keywords
main shaft
power generation
end cover
water flow
rotating wheel
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Granted
Application number
CN202210157831.4A
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Chinese (zh)
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CN114567120B (en
Inventor
詹学良
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Hunan Hongtai East Electrical And Mechanical Equipment Co ltd
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Hunan Hongtai East Electrical And Mechanical Equipment Co ltd
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Priority to CN202210157831.4A priority Critical patent/CN114567120B/en
Publication of CN114567120A publication Critical patent/CN114567120A/en
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Publication of CN114567120B publication Critical patent/CN114567120B/en
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    • 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
    • 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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16—Stators
    • F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/02—Windings characterised by the conductor material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • 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
    • H02K7/1846—Rotary generators structurally associated with wheels or associated parts
    • 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
    • H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
    • 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

Abstract

The invention discloses an outer rotor permanent magnet hydraulic generator and a hydraulic generator set, comprising: the shaft seat is provided with a main shaft, and the main shaft is arranged in water flow; the rotating wheel is rotationally arranged on the main shaft and provided with a first rotating axis, and a power generation chamber is arranged in the rotating wheel; the fan blades are arranged on the outer side wall of the rotating wheel and are driven by water flow to drive the rotating wheel to rotate around the main shaft; the stator is arranged on the outer side wall of the main shaft, is positioned in the power generation cavity and can be electrically connected with a power grid; the rotor is arranged on the inner side wall of the power generation chamber; a first sealing device for sealing the power generation chamber. The structure of the generator and the water turbine can be simplified, and the cost is lower. The invention is applied to the field of hydraulic turbine power generation equipment.

Description

Outer rotor permanent magnet hydraulic generator and hydraulic generator set
Technical Field
The invention relates to the field of hydraulic turbine generating equipment, in particular to an outer rotor permanent magnet hydraulic generator and a hydraulic generator set.
Background
The structure of current hydroelectric set has continued for centuries, and the hydraulic turbine forms synchronous revolution for separately arranging with the generator through main shaft flange joint, and vertical structure adopts two-layer factory building structure, and civil engineering construction cost is high, and electromechanical device investment cost is high, and the unit size is huge.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the outer rotor permanent magnet hydraulic generator provided by the invention can simplify the structures of the generator and the hydraulic turbine and is lower in cost.
Still provide a hydroelectric set, have above-mentioned outer rotor permanent magnetism hydraulic generator.
The technical scheme adopted by the embodiment of the first aspect of the invention is as follows: an outer rotor permanent magnet hydro-generator, comprising: the shaft seat is provided with a main shaft; the rotating wheel is rotatably arranged on the main shaft, and a power generation cavity is arranged in the rotating wheel; the fan blades are arranged on the outer side wall of the rotating wheel and are driven by water flow to drive the rotating wheel to rotate around the main shaft; the stator is arranged on the outer side wall of the main shaft, is positioned in the power generation cavity and can be electrically connected with a power grid; the rotor is arranged on the inner side wall of the power generation chamber, and the rotor and the stator are oppositely arranged at intervals; a first sealing device for sealing a gap between the main shaft and the runner to seal the power generation chamber.
The outer rotor permanent magnet hydraulic generator according to the embodiment of the first aspect of the invention has at least the following beneficial effects:
1. the generator is directly hidden in the generating cavity of the rotating wheel, and the fan blades are driven by water flow, so that when the rotating wheel is driven to rotate, the rotor rotates relative to the stator, power generation is realized, a plant for independently placing the generator is not required to be built, and the manufacturing cost is reduced;
2. isolated electricity generation cavity and rivers are through first sealing device for the generator can generate electricity smoothly, with the water-proof effects when being close the generator and setting up alone.
According to some embodiments of the present invention, the rotating wheel has a first rotation axis, the rotating wheel includes an upper end cover, a lower end cover and a hollow rotating wheel cylinder, the rotating wheel cylinder is disposed along the first rotation axis, the upper end cover is disposed at one end of the rotating wheel cylinder, the lower end cover is disposed at the other end of the rotating wheel cylinder, the upper end cover, the lower end cover and the rotating wheel cylinder surround to form the power generation chamber, and the upper end cover and the lower end cover are both rotatably connected to the main shaft.
According to some embodiments of the invention, the first sealing device comprises an upper sealing cover and a lower sealing cover, the upper end cover is rotatably connected with the main shaft through an upper bearing, and the lower end cover is rotatably connected with the main shaft through a lower bearing;
the upper sealing cover is arranged at the joint of the upper bearing and the upper end cover and is positioned on one surface of the upper end cover, which is far away from the power generation cavity, an upper main shaft sealing sleeve is arranged on one surface of the upper sealing cover, which is far away from the upper end cover, and the upper main shaft sealing sleeve extends out of the upper sealing cover and is used for sleeving and movably sealing the main shaft;
the lower sealing cover is arranged at the joint of the lower bearing and the lower end cover and is positioned below one surface of the lower end cover, which is far away from the power generation cavity, a lower main shaft sealing sleeve is arranged below one surface of the lower sealing cover, which is far away from the lower end cover, and the lower main shaft sealing sleeve extends out of the lower sealing cover and is used for sleeving and movably sealing the main shaft.
According to some embodiments of the invention, the power generation device further comprises a drainage cone arranged on a face of the lower end cover far away from the power generation cavity.
According to some embodiments of the invention, the stator is provided with a stator winding, and the wire material of the stator winding is a water-resistant winding wire with a cross-linked polyethylene insulating nylon sheath.
According to some embodiments of the invention, a cooling conduit is provided within the main shaft, the cooling conduit passing through the power generation chamber to cool the stator within the power generation chamber.
According to some embodiments of the invention, the power supply further comprises a stator outgoing cable, one end of the stator outgoing cable is electrically connected with the stator, and the other end of the stator outgoing cable penetrates through the main shaft and is used for being electrically connected with a power grid.
The technical scheme adopted by the embodiment of the second aspect of the invention is as follows: a permanent magnet hydro-turbo generator set comprising: the outer rotor permanent magnet hydro-generator in the embodiment of the first aspect of the invention.
According to the permanent magnet hydroelectric generating set of the embodiment of the second aspect of the invention, at least the following beneficial effects are achieved: through setting up above-mentioned outer rotor permanent magnetism hydraulic generator, when the installation, need not to set up the factory building of generator alone, save construction cost.
According to some embodiments of the present invention, the present invention further includes an upper fixing seat, a lower fixing seat and a volute, the volute is disposed between the upper fixing seat and the lower fixing seat, a transverse first water flow passage is defined by the volute, the upper fixing seat and the lower fixing seat, a longitudinal second water flow passage is disposed on the lower fixing seat, the second water flow passage is located at a center of the volute and is communicated with the first water flow passage, water can enter the second water flow passage from the first water flow passage, a runner chamber is disposed at a connection position of the second water flow passage and the first water flow passage, the runner is disposed in the runner chamber, a support cover is disposed at a position opposite to the upper fixing seat and the second water flow passage, the shaft seat is disposed on the support cover, and the spindle extends from the shaft seat to the second water flow passage.
According to some embodiments of the invention, the second water flow channel is further provided with a draft tube, the draft tube is communicated with the runner chamber and is located behind the runner chamber along the water flow direction, and the diameter of the draft tube is larger than that of the runner chamber.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a permanent magnet hydro-generator with an outer rotor according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a permanent magnet hydro-turbo generator set according to an embodiment of the invention.
Reference numerals:
100-axle seat; 110-a main shaft; 111-a cooling conduit;
200-rotating wheel; 210-a power generation chamber; 220-upper end cap; 230-lower end cap; 240-rotating wheel cylinder;
300-fan blades;
400-a stator; 410-stator outgoing cables;
500-a rotor;
600-a first sealing means; 610-upper sealing cover; 611-upper main shaft sealing sleeve; 620-lower sealing cover; 621-lower main shaft sealing sleeve;
700-a drainage cone;
800-upper fixed seat; 810-support cover;
900-lower fixed seat; 910-a second water flow channel; 911-runner house; 912-draft tube;
1000-volute; 1010-first water flow passage.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, in some embodiments of the present invention, an outer rotor permanent magnet hydro-generator includes:
a shaft seat 100 provided with a main shaft 110;
the rotating wheel 200 is rotatably arranged on the main shaft 110, and a power generation chamber 210 is arranged in the rotating wheel 200;
the fan blades 300 are arranged on the outer side wall of the runner 200 and are driven by water flow to drive the runner 200 to rotate around the main shaft 110;
the stator 400 is arranged on the outer side wall of the main shaft 110, is positioned in the power generation chamber 210, and can be electrically connected with a power grid;
a rotor 500 disposed on an inner sidewall of the power generation chamber 210, the rotor 500 being disposed opposite to the stator 400 at an interval;
a first sealing means 600 for sealing a gap between the main shaft 110 and the runner 200 to seal the power generation chamber 210.
Specifically, in the using process, water flow impacts fan blades 300, so that the fan blades 300 drive the rotating wheel 200 to rotate around the main shaft 110 on the shaft base 100, when the rotating wheel rotates, the rotor 500 located in the power generation chamber 210 rotates relative to the stator 400 on the main shaft 110, and the stator 400 outputs induced electromotive force at this time, thereby realizing power generation.
Compared with the conventional water turbine, the rotating wheel 200 and the generator are respectively and independently arranged, the generator is directly hidden in the power generation cavity 210 of the rotating wheel 200, the fan blades 300 are driven by water flow, and therefore when the rotating wheel 200 is driven to rotate, the rotor 500 rotates relative to the stator 400, power generation is achieved, a workshop for independently placing the generator does not need to be built, and manufacturing cost is reduced.
The first sealing device 600 isolates the power generation chamber 210 from water flow, so that the generator can generate power smoothly, and the generator is close to a waterproof effect when being arranged independently.
Referring to fig. 1, in some embodiments of the present invention, the rotor 200 has a first rotation axis, the rotor 200 includes an upper end cap 220, a lower end cap 230 and a hollow rotor cylinder 240, the rotor cylinder 240 is disposed along the first rotation axis, the upper end cap 220 is disposed at one end of the rotor cylinder 240, the lower end cap 230 is disposed at the other end of the rotor cylinder 240, the upper end cap 220, the lower end cap 230 and the rotor cylinder 240 surround to form a power generation chamber 210, and the upper end cap 220 and the lower end cap 230 are both rotatably connected to the main shaft 110.
Specifically, the power generation chamber 210 is formed by surrounding the rotating wheel cylinder 240, the upper end cover 220 and the lower end cover 230, when the rotor 500 and the stator 400 are installed in the power generation chamber 210, the installation can be realized only by disassembling the upper end cover 220 or the lower end cover 230, and the installation is simpler and more convenient.
Referring to fig. 1, in some embodiments of the present invention, the first sealing device 600 includes an upper sealing cover 610 and a lower sealing cover 620, the upper cap 220 is rotatably coupled to the main shaft 110 by an upper bearing, and the lower cap 230 is rotatably coupled to the main shaft 110 by a lower bearing;
the upper sealing cover 610 is covered at the joint of the upper bearing and the upper end cover 220 and is positioned on one surface of the upper end cover 220 far away from the power generation chamber 210, an upper main shaft sealing sleeve 611 is arranged on one surface of the upper sealing cover 610 far away from the upper end cover 220, and the upper main shaft sealing sleeve 611 extends out of the upper sealing cover 610 and is used for sleeving and movably sealing the main shaft 110;
the lower sealing cover 620 covers the joint of the lower bearing and the lower end cover 230 and is positioned below one surface of the lower end cover 230 far away from the power generation chamber 210, a lower main shaft sealing sleeve 621 is arranged below one surface of the lower sealing cover 620 far away from the lower end cover 230, and the lower main shaft sealing sleeve 621 extends out of the lower sealing cover 620 and is used for sleeving and movably sealing the main shaft 110.
Specifically, in this embodiment, by providing the upper sealing cover 610, the upper sealing cover 610 can seal the joint between the upper end cover 220 and the main shaft 110, so as to seal one end of the power generation chamber 210, and then seal the joint between the lower end cover 230 and the main shaft 110 by the lower sealing cover 620, so as to seal the other end of the power generation chamber 210, thereby achieving the overall sealing of the power generation chamber 210.
Referring to fig. 1, in some embodiments of the present invention, the first sealing device 600 further includes a water drainage cone 700, and the water drainage cone 700 is disposed on a surface of the lower end cover 230 away from the power generation chamber 210 for changing a flow direction of the water flow.
Specifically, the drainage cone 700 is arranged, so that when water impacts the drainage cone 700, the water can flow in the axial direction of the main shaft 110, the rebound of the water flow is reduced, the formation of vortex is reduced, and the movement of the water flow along the flow direction of the water flow is facilitated.
Referring to fig. 1, in some embodiments of the present invention, a stator winding is disposed on a stator 400, and a winding material of the stator winding is a water-resistant winding wire with a cross-linked polyethylene insulating nylon sheath.
Specifically, the material of the stator winding group wire is set to be the cross-linked polyethylene insulation nylon sheath water-resistant winding wire, so that the water-resistant and oil-resistant effects of the stator winding group wire are better, and the long-term use of the stator winding is more facilitated.
Referring to fig. 1, in some embodiments of the present invention, a cooling duct 111 is provided in a main shaft 110, and the cooling duct 111 passes through a power generation chamber 210 to cool a stator 400 in the power generation chamber 210.
Specifically, because stator 400 and rotor 500 all set up in power generation cavity 210, when rotor 500 rotates, easily produce more heat, and runner 200's outer wall side contacts with rivers, and rotor 500 accessible flowing rivers realize dispelling the heat, and stator 400 can dispel the heat through the cooling tube 111 that sets up on main shaft 110, realizes the heat dissipation of stator 400 to improve stator 400 and rotor 500's service environment, improve the generating efficiency.
Referring to fig. 1, in some embodiments of the present invention, a stator outgoing cable 410 is further included, and one end of the stator outgoing cable 410 is electrically connected to the stator 400, and the other end thereof passes through the main shaft 110 for electrical connection to a power grid.
Specifically, the stator 400 is provided with a stator outgoing cable 410 to transmit electric energy generated by the stator to the power grid, so that power supply is realized.
Referring to fig. 2, the technical solution adopted by the embodiment of the second aspect of the present invention is: a permanent magnet hydro-turbo generator set comprising: the outer rotor permanent magnet hydro-generator adopted in the embodiment of the first aspect of the invention is described above.
Specifically, by arranging the outer rotor permanent magnet hydraulic generator, a factory building of the generator does not need to be arranged independently during installation, and the construction cost is saved.
In addition, other structures of the water turbine generator set are known to those skilled in the art, and are not described in detail herein.
Referring to fig. 1, in some embodiments of the present invention, the present invention further includes an upper fixing base 800, a lower fixing base 900 and a volute 1000, the volute 1000 is transversely disposed between the upper fixing base 800 and the lower fixing base 900, the volute 1000, the upper fixing base 800 and the lower fixing base 900 are surrounded to form a transverse first water flow passage 1010, the lower fixing base 900 is provided with a longitudinal second water flow passage 910, the second water flow passage 910 is located at a center of the volute 1000 and is communicated with the first water flow passage 1010, water can enter the second water flow passage 910 from the first water flow passage 1010, a connection portion of the second water flow passage 910 and the first water flow passage 1010 is provided with a runner chamber 911, the runner 200 is disposed in the runner chamber 911, a support cover 810 is disposed at a position opposite to the upper fixing base 800 and the second water flow passage 910, a shaft seat 100 is disposed on the support cover 810, and the main shaft 110 extends from the main shaft 100 to the second water flow passage 910.
Specifically, all be equipped with water guide device on the conventional hydraulic turbine, water guide device can dredge rivers to the speed and the size of control rivers, and directly generate electricity through the rotation of runner 200 and flabellum 300, realize runner 200's variable speed operation electricity generation, it is structural simpler, reduced manufacturing cost, and there is water can directly generate electricity, the generated energy is more.
Of course, the present invention may also be provided with water guiding means.
Referring to fig. 1, in some embodiments of the present invention, the second water channel 910 is further provided with a tail water pipe 912, the tail water pipe 912 is communicated with the runner chamber 911 and is located behind the runner chamber 911 in the water flow direction, and the diameter of the tail water pipe 912 is larger than that of the runner chamber 911.
Specifically, the diameter of the draft tube 912 is larger than that of the runner chamber 911, so that the flow speed of the water flowing through the draft tube 912 along the runner chamber 911 is reduced to smoothly guide the water to the downstream.
Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims (10)

1. An outer rotor permanent magnet hydro-generator, comprising:
a shaft seat (100) provided with a main shaft (110);
the rotating wheel (200) is rotatably arranged on the main shaft (110), and a power generation chamber (210) is arranged in the rotating wheel (200);
the fan blades (300) are arranged on the outer side wall of the rotating wheel (200) and are driven by water flow to drive the rotating wheel (200) to rotate around the main shaft (110);
the stator (400) is arranged on the outer side wall of the main shaft (110), is positioned in the power generation chamber (210), and can be electrically connected with a power grid;
a rotor (500) disposed on an inner sidewall of the power generation chamber (210), the rotor (500) being disposed opposite to the stator (400) at a spacing;
a first sealing means (600) for sealing a gap between the main shaft (110) and the runner (200) to seal the power generation chamber (210).
2. The outer rotor permanent magnet hydro-generator of claim 1, wherein: the rotating wheel (200) is provided with a first rotating axis, the rotating wheel (200) comprises an upper end cover (220), a lower end cover (230) and a hollow rotating wheel cylinder (240), the rotating wheel cylinder (240) is arranged along the first rotating axis direction, the upper end cover (220) is arranged at one end of the rotating wheel cylinder (240) in a covering mode, the lower end cover (230) is arranged at the other end of the rotating wheel cylinder (240) in a covering mode, the upper end cover (220), the lower end cover (230) and the rotating wheel cylinder (240) surround to form the power generation chamber (210), and the upper end cover (220) and the lower end cover (230) are connected with the main shaft (110) in a rotating mode.
3. The outer rotor permanent magnet hydro-generator of claim 2, wherein: the first sealing device (600) comprises an upper sealing cover (610) and a lower sealing cover (620), the upper end cover (220) is rotatably connected with the main shaft (110) through an upper bearing, and the lower end cover (230) is rotatably connected with the main shaft (110) through a lower bearing;
the upper sealing cover (610) is arranged at the joint of the upper bearing and the upper end cover (220) in a covering manner and is positioned on one surface of the upper end cover (220) far away from the power generation cavity (210), an upper main shaft sealing sleeve (611) is arranged on one surface of the upper sealing cover (610) far away from the upper end cover (220), and the upper main shaft sealing sleeve (611) extends out of the upper sealing cover (610) and is used for sleeving and movably sealing the main shaft (110);
the lower sealing cover (620) is arranged at the joint of the lower bearing and the lower end cover (230) in a covering mode and located below one surface, far away from the power generation cavity (210), of the lower end cover (230), a lower main shaft sealing sleeve (621) is arranged below one surface, far away from the lower end cover (230), of the lower sealing cover (620), and the lower main shaft sealing sleeve (621) extends out of the lower sealing cover (620) and is used for sleeving and movably sealing the main shaft (110).
4. The outer rotor permanent magnet hydro-generator of claim 2, wherein: the power generation device further comprises a drainage cone (700), and the drainage cone (700) is arranged on one surface, far away from the power generation cavity (210), of the lower end cover (230).
5. The outer rotor permanent magnet hydro-generator of any one of claims 1 to 4, wherein: the stator (400) is provided with a stator winding, and the wire assembly material of the stator winding is a water-resistant winding wire with a cross-linked polyethylene insulating nylon sheath.
6. The outer rotor permanent magnet hydro-generator of any one of claims 1 to 4, wherein: a cooling pipeline (111) is arranged in the main shaft (110), and the cooling pipeline (111) passes through the power generation chamber (210) to cool the stator (400) in the power generation chamber (210).
7. The outer rotor permanent magnet hydro-generator of any one of claims 1 to 4, wherein: the stator cable (410) that is qualified for next round of competitions still includes stator cable (410), stator cable (410) one end is continuous with stator (400) electrical property, and the other end passes main shaft (110) is used for linking to each other with the electric wire netting electrical property.
8. A hydro-turbo generator set, comprising: the outer rotor permanent magnet hydro-generator of any one of claims 1 to 7.
9. The hydroelectric generating set according to claim 8, wherein: the water-saving device is characterized by further comprising an upper fixing seat (800), a lower fixing seat (900) and a volute (1000), wherein the volute (1000) is arranged between the upper fixing seat (800) and the lower fixing seat (900), the volute (1000), the upper fixing seat (800) and the lower fixing seat (900) are surrounded to form a transverse first water flow channel (1010), a longitudinal second water flow channel (910) is arranged on the lower fixing seat (900), the second water flow channel (910) is located at the center of the volute (1000) and is communicated with the first water flow channel (1010), water can enter the second water flow channel (910) from the first water flow channel (1010), a runner chamber (911) is arranged at the joint of the second water flow channel (910) and the first water flow channel (1010), the runner (200) is arranged in the runner chamber (911), and a supporting cover (810) is arranged at the position, opposite to the second water flow channel (910), of the upper fixing seat (800), the shaft seat (100) is arranged on the supporting cover (810), and the main shaft (110) extends out of the shaft seat (100) to the second water flow channel (910).
10. The hydroelectric generating set according to claim 9, wherein: the second water flow channel (910) is further provided with a tail water pipe (912), the tail water pipe (912) is communicated with the runner chamber (911) and is located behind the runner chamber (911) along the water flow direction, and the diameter of the tail water pipe (912) is larger than that of the runner chamber (911).
CN202210157831.4A 2022-02-21 2022-02-21 Outer rotor permanent magnet hydraulic generator and hydraulic generator set Active CN114567120B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201065807Y (en) * 2007-07-10 2008-05-28 中国水利水电科学研究院 High specific speed packaged axial flow fixed paddle type turbine generation unit
CN104500316A (en) * 2014-12-25 2015-04-08 萍乡市济田水电设备制造有限公司 Water-turbine generator set
CN106050531A (en) * 2016-06-25 2016-10-26 郭远军 Efficient reversely mounted bucket type hydrogenerator
CN106100236A (en) * 2016-06-25 2016-11-09 郭远军 A kind of integration is just setting oar tubular-turbine generator
CN106936250A (en) * 2017-05-09 2017-07-07 泰州市姜堰德力电机有限公司 Self-sealed submersible motor
CN108482105A (en) * 2018-05-22 2018-09-04 刘昱含 Dynamoelectric and power generation integral type outer rotor hub unit and electric vehicle
CN211089352U (en) * 2019-12-31 2020-07-24 浙江三龙通用机械有限公司 Direct-drive circular weaving machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201065807Y (en) * 2007-07-10 2008-05-28 中国水利水电科学研究院 High specific speed packaged axial flow fixed paddle type turbine generation unit
CN104500316A (en) * 2014-12-25 2015-04-08 萍乡市济田水电设备制造有限公司 Water-turbine generator set
CN106050531A (en) * 2016-06-25 2016-10-26 郭远军 Efficient reversely mounted bucket type hydrogenerator
CN106100236A (en) * 2016-06-25 2016-11-09 郭远军 A kind of integration is just setting oar tubular-turbine generator
CN106936250A (en) * 2017-05-09 2017-07-07 泰州市姜堰德力电机有限公司 Self-sealed submersible motor
CN108482105A (en) * 2018-05-22 2018-09-04 刘昱含 Dynamoelectric and power generation integral type outer rotor hub unit and electric vehicle
CN211089352U (en) * 2019-12-31 2020-07-24 浙江三龙通用机械有限公司 Direct-drive circular weaving machine

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