CN210350908U - Sealing structure of direct-drive wind driven generator - Google Patents

Sealing structure of direct-drive wind driven generator Download PDF

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Publication number
CN210350908U
CN210350908U CN201921465862.6U CN201921465862U CN210350908U CN 210350908 U CN210350908 U CN 210350908U CN 201921465862 U CN201921465862 U CN 201921465862U CN 210350908 U CN210350908 U CN 210350908U
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China
Prior art keywords
ring
sealing
end cover
stator
plate
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CN201921465862.6U
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Chinese (zh)
Inventor
蒋小平
王慧勇
王峰军
叶志伟
冯海兵
曹逸星
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Dongfang Electric Machinery Co Ltd DEC
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Dongfang Electric Machinery Co Ltd DEC
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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Abstract

The utility model relates to a generator seal design technical field especially relates to a directly drive aerogenerator's seal structure, including V type sealing washer, waterproof ring board, weather shield and water drainage tank. Through this seal structure, strengthened sealed effect, can prevent effectively that sand and dust, salt fog, sleet etc. from getting into inside the motor, and can effectively solve the unable exhaust problem of rainwater that gets into seal structure inside, seal structure is simpler, the installation of being convenient for.

Description

Sealing structure of direct-drive wind driven generator
Technical Field
The utility model relates to a generator seal design technical field especially relates to a directly drive aerogenerator's seal structure.
Background
Wind generating sets are generally installed in places with severe environments, such as large wind sand, heavy moisture, heavy salt mist and the like. Particularly for a direct-drive wind driven generator, the motor is positioned outside the engine room and is easily impacted by wind, rain and snow, and the design of the sealing structure of the motor is highly required. The sealing reliability of the wind driven generator directly influences the service life and the operation reliability of the motor, and the popularization of the wind power generation technology is restricted.
In the prior art, a chinese utility model patent document with publication number CN206272390U and publication date of 2017, 06 and 20 is proposed to solve the above existing technical problems, and the technical scheme disclosed in the patent document is as follows: a combined direct-drive permanent magnet wind power generator sealing structure comprises a labyrinth rotating body, a labyrinth static body and a sealing ring; the labyrinth static body is arranged on a motor stator, the labyrinth rotating body is connected with a motor rotor, the labyrinth static body is arranged on the outer side of the labyrinth rotating body, and a gap is reserved between the labyrinth static body and the labyrinth rotating body; the sealing ring is fixedly arranged on the labyrinth rotating body, and the excircle of the sealing ring is in critical contact with the hole wall of the labyrinth static body.
In the actual use process, the following problems can occur in the technical scheme:
(1) the whole sealing structure is complex in structure, inconvenient to install, high in manufacturing cost and not beneficial to popularization.
(2) Although the sealing structure can prevent corrosive gas such as salt fog and rainwater from entering the motor, the sealing structure is easy to enter rainwater under the conditions of wind and rain impact and the like, and the rainwater cannot be effectively discharged, so that the service life and the operational reliability of the motor can be influenced.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a directly drive aerogenerator's seal structure can effectively solve the unable exhaust problem of rainwater that gets into the inside seal structure, and the utility model discloses the structure is simpler, the installation of being convenient for.
The utility model discloses a realize through adopting following technical scheme:
the utility model provides a seal structure of directly driving aerogenerator which characterized in that: comprises a V-shaped sealing ring, a waterproof ring plate, a rain baffle and a drainage channel; the V-shaped sealing ring and the waterproof ring plate are fixedly connected to a rotor support of the generator, the V-shaped sealing ring is in contact with the inner side of a stator sealing end cover of the generator to form sealing, the waterproof ring plate extends out towards the direction of the stator sealing end cover, and a first gap is formed between the waterproof ring plate and the outer side of the stator sealing end cover; the outer side of the upper half ring of the stator sealing end cover is fixedly connected with a rain baffle, the inner side of the lower half ring of the stator sealing end cover is connected with a drainage groove, and a second gap is formed between the rain baffle and the waterproof ring plate; and the lower part of the drainage tank is provided with a hole and is connected with a drainage pipe, and the drainage pipe extends out of the outer side of the stator sealing end cover through a through hole on the stator sealing end cover.
And a first water retaining ring is arranged on the outer side of the lower half ring of the stator sealing end cover and is positioned at the first gap.
The inner angle enclosed by the first water retaining ring is not less than 180 degrees.
And a second water retaining ring is arranged on the outer side of the waterproof ring plate and is positioned at the second gap.
The inner angle formed by the second water retaining ring is 360 degrees.
And the rotor support is also provided with a sealing seat ring, and the V-shaped sealing ring is fixedly connected with the sealing seat ring through a pressing plate.
And a rain baffle seat ring is arranged on the outer side of the upper half ring of the stator sealing end cover, and the rain baffle is connected with the stator sealing end cover through the rain baffle seat ring.
The waterproof ring plate and the rain baffle plate are of split structures.
The waterproof ring plate and the rain baffle plate are made of unsaturated polyester glass fiber reinforced molding compound SMC.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a set up inside V type sealing washer prevents that sand and dust, salt fog, sleet etc. from getting into the motor to be equipped with waterproof crown plate and weather shield in the outside of V type sealing washer, simple structure avoids V type sealing washer directly to expose in the air, receives the erosion and the impact of salt fog, sand and dust, wind, rain and influences the phenomenon emergence of the sealed effect of V type sealing washer.
The utility model discloses the inboard of half a circle still is connected with water drainage tank under the stator end cover, can be through the drain pipe that links to each other with water drainage tank with getting into the inside rainwater of seal structure under the condition such as wind and rain impact and discharge, can prolong the life of motor and improve the operational reliability of motor.
The utility model discloses under the sealed effect of V type sealing washer, still be equipped with waterproof, rain-proof and drainage structures, strengthened sealed effect to this seal structure even when aerogenerator does not have inside malleation, also can prevent effectively that corrosive gases such as salt fog and rainwater from getting into inside the motor.
2. The outside of stator end cover lower half circle is equipped with first manger plate ring and waterproof crown plate outside and is equipped with the second manger plate ring and all is in order to further avoid the rainwater to get into seal structure.
3. The inner angle formed by the first water retaining ring is not less than 180 degrees, and the inner angle formed by the second water retaining ring is 360 degrees, so that the water retaining effect is the best.
4. The rotor support is further provided with a sealing seat ring, the V-shaped sealing ring is fixedly connected with the sealing seat ring through a pressing plate, the position of the V-shaped sealing ring is convenient to adjust, and meanwhile the V-shaped sealing ring is guaranteed to be more stable in the motor operation process.
5. And a rain shield seat ring is arranged on the outer side of the upper half ring of the stator sealing end cover, so that a rain shield can be conveniently installed and the position of the rain shield can be conveniently adjusted.
6. The waterproof ring plate and the rain baffle are of split structures, and are convenient to detach and install.
7. The waterproof ring plate and the rain baffle plate are made of unsaturated polyester glass fiber reinforced molding compound SMC, and have the advantages of light specific gravity, corrosion resistance, good insulating effect and low production cost.
Drawings
The invention will be described in further detail with reference to the following description taken in conjunction with the accompanying drawings and detailed description, in which:
FIG. 1 is a schematic structural view of the upper half circle of the present invention;
FIG. 2 is a schematic structural view of the lower half-ring of the present invention;
the labels in the figure are:
1. rotor support, 2, stator end cover, 3, V type sealing washer, 4, waterproof ring plate, 5, weather shield, 6, water drainage tank, 7, drain pipe, 8, first manger plate ring, 9, second manger plate ring, 10, sealed seat ring, 11, clamp plate, 12, weather shield seat ring.
Detailed Description
Example 1
As the utility model discloses basic embodiment, the utility model discloses a directly drive aerogenerator, including stator frame, spider 1 and seal structure, install stator end cover 2 on the stator frame, form the third clearance between stator end cover 2 and the spider 1. The sealing structure comprises a V-shaped sealing ring 3, a waterproof ring plate 4, a rain baffle 5 and a drainage groove 6. V type sealing washer 3 and waterproof crown plate 4 all fixed connection are on rotor support 1, and V type sealing washer 3 forms sealedly with the inboard contact of stator end cover 2, waterproof crown plate 4 stretches out towards stator end cover 2's direction, stretches out the width that the width can be greater than the third clearance, and waterproof crown plate 4 forms first clearance with the outside of stator end cover 2.
The outside fixedly connected with weather shield 5 of stator end cover 2 upper half circle, the inboard of stator end cover 2 lower half circle is connected with water drainage tank 6. A second gap is formed between the rain baffle 5 and the waterproof ring plate 4; the lower part of the drainage channel 6 is provided with a hole and is connected with a drainage pipe 7, and the drainage pipe 7 extends out of the stator sealing end cover 2 through a through hole on the stator sealing end cover 2.
Example 2
As a better implementation mode of the utility model, the utility model comprises a sealing structure of a direct-drive wind driven generator, which comprises a V-shaped sealing ring 3, a waterproof ring plate 4, a rain baffle 5 and a drainage groove 6; the V-shaped sealing ring 3 and the waterproof ring plate 4 are fixedly connected to the rotor support 1 of the direct-drive wind driven generator, and the V-shaped sealing ring 3 is in contact with the inner side of the stator sealing end cover 2 of the direct-drive wind driven generator to form sealing.
Waterproof crown plate 4 stretches out towards the direction of stator end cover 2, and waterproof crown plate 4 forms first clearance with the outside of stator end cover 2, and is equipped with second fender water ring 9 in the waterproof crown plate 4 outside, and the interior angle that second fender water ring 9 encloses is 360.
The outer side of the upper half ring of the stator sealing end cover 2 of the direct-driven wind driven generator is fixedly connected with a rain baffle 5, the inner side of the lower half ring is connected with a water drainage groove 6, and the outer side of the lower half ring is provided with a first water retaining ring 8. A second gap is formed between the rain baffle 5 and the waterproof ring plate 4, the second water retaining ring 9 is positioned at the second gap, the first water retaining ring 8 is positioned at the first gap, and the inner angle enclosed by the first water retaining ring 8 is not less than 180 degrees.
The lower part of the drainage channel 6 is provided with a hole and is connected with a drainage pipe 7, and the drainage pipe 7 extends out of the stator sealing end cover 2 through a through hole on the stator sealing end cover 2.
Example 3
As another preferred embodiment of the present invention, the present invention includes a sealing structure for direct-driven wind power generator, which includes a V-shaped sealing ring 3, a waterproof ring plate 4, a rain shield 5 and a drainage groove 6. The waterproof ring plate 4 is fixedly connected to a rotor support 1 of the direct-drive wind driven generator, a sealing seat ring 10 is further arranged on the rotor support 1, the V-shaped sealing ring 3 is fixedly connected with the sealing seat ring 10 through a pressing plate 11, and the V-shaped sealing ring 3 is in contact with the inner side of a stator sealing end cover 2 of the generator to form sealing.
The waterproof ring plate 4 extends out towards the stator sealing end cover 2, and a first gap is formed between the waterproof ring plate 4 and the outer side of the stator sealing end cover 2.
The outer side of the upper half ring of the stator sealing end cover 2 is provided with a rain baffle seat ring 12, and the rain baffle 5 is connected with the stator sealing end cover 2 through the rain baffle seat ring 12. The inner side of the lower half ring of the stator sealing end cover 2 is connected with a drainage groove 6, and a second gap is formed between the rain baffle 5 and the waterproof ring plate 4; the lower part of the drainage channel 6 is provided with a hole and is connected with a drainage pipe 7, and the drainage pipe 7 extends out of the stator sealing end cover 2 through a through hole on the stator sealing end cover 2.
Example 4
As the best mode of the present invention, refer to the accompanying drawings 1 and 2, the present invention discloses a wind power generator, which comprises a stator frame and a rotor support 1, wherein a stator end cover 2 is installed on the stator frame, and a third gap is formed between the stator end cover 2 and the rotor support 1.
A sealing structure of a direct-drive wind driven generator comprises a V-shaped sealing ring 3, a waterproof ring plate 4, a rain baffle 5 and a drainage channel 6. The rotor support 1 is provided with a sealing seat ring 10 at the inner side of the third gap, the V-shaped sealing ring 3 is fixedly arranged on the sealing seat ring 10 through a pressing plate 11, and the V-shaped sealing ring 3 is in contact with the inner side of the stator sealing end cover 2 to form sealing.
The waterproof ring plate 4 is arranged on the rotor bracket 1, extends out towards the stator sealing end cover 2 outside the third gap, and the extending width is larger than the width of the third gap. A first gap is formed between the waterproof ring plate 4 and the stator end cover 2.
The rain baffle 5 is arranged on the outer side of the stator sealing end cover 2, the outer diameter of the rain baffle is larger than that of the waterproof ring plate 4, and the rain baffle extends out of the waterproof ring plate 4. A second gap is formed between the rain shield 5 and the waterproof ring plate 4. And a rain shield seat ring 12 is arranged on the outer side of the stator sealing end cover 2 and used for installing a rain shield 5.
A first protruding water retaining ring 8 is arranged at a first gap on the outer side of the stator sealing end cover 2. The first water retaining ring 8 is positioned at the lower half circle of the motor, and the enclosed inner angle is not less than 180 degrees.
A circle of convex second water retaining ring 9 is arranged on the outer side of the waterproof ring plate 4, and the second water retaining ring 9 is positioned at the second gap in the range of the rain baffle plate 5.
The rain baffle 5 is positioned on the upper half circle of the motor, and the enclosed inner angle is not less than 180 degrees.
The waterproof ring plate 4 and the rain baffle plate 5 are of split structures, so that the waterproof ring plate and the rain baffle plate are convenient to disassemble and assemble.
A drainage groove 6 is fixed on the inner side of the stator sealing end cover 2, the lower part of the drainage groove 6 is provided with a hole and provided with a drainage pipe 7, and the drainage pipe 7 extends out of the stator sealing end cover 2 through a through hole on the stator sealing end cover 2. The water drainage groove 6 is welded on the stator sealing end cover 2 and is positioned in the lower half circle of the motor, and the enclosed inner angle is not less than 180 degrees.
The water baffle and the rain guard are made of unsaturated polyester glass fiber reinforced molding compound SMC.
In conclusion, after the ordinary skilled in the art reads the document of the present invention, the technical solution and technical idea of the present invention do not need creative mental labor and make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.

Claims (9)

1. The utility model provides a seal structure of directly driving aerogenerator which characterized in that: comprises a V-shaped sealing ring (3), a waterproof ring plate (4), a rain baffle plate (5) and a drainage groove (6); the V-shaped sealing ring (3) and the waterproof ring plate (4) are fixedly connected to a rotor support (1) of the generator, the V-shaped sealing ring (3) is in contact with the inner side of a stator sealing end cover (2) of the generator to form sealing, the waterproof ring plate (4) extends out towards the direction of the stator sealing end cover (2), and a first gap is formed between the waterproof ring plate (4) and the outer side of the stator sealing end cover (2); the outer side of the upper half ring of the stator sealing end cover (2) is fixedly connected with a rain baffle plate (5), the inner side of the lower half ring of the stator sealing end cover (2) is connected with a drainage groove (6), and a second gap is formed between the rain baffle plate (5) and the waterproof ring plate (4); the lower part of the drainage groove (6) is provided with a hole and is connected with a drainage pipe (7), and the drainage pipe (7) extends out of the outer side of the stator sealing end cover (2) through a through hole in the stator sealing end cover (2).
2. A sealing structure of a direct drive wind power generator according to claim 1, wherein: the outer side of the lower half ring of the stator sealing end cover (2) is provided with a first water retaining ring (8), and the first water retaining ring (8) is located in a first gap.
3. A sealing structure of a direct drive wind power generator according to claim 2, wherein: the inner angle enclosed by the first water retaining ring (8) is not less than 180 degrees.
4. A sealing structure of a direct drive wind power generator as claimed in claim 1 or 3, wherein: and a second water retaining ring (9) is arranged on the outer side of the waterproof ring plate (4), and the second water retaining ring (9) is positioned at the second gap.
5. A sealing structure of a direct drive wind power generator according to claim 4, characterized in that: the inner angle formed by the second water retaining ring (9) is 360 degrees.
6. A sealing structure of a direct drive wind power generator as claimed in claim 1 or 5, wherein: the rotor support (1) is further provided with a sealing seat ring (10), and the V-shaped sealing ring (3) is fixedly connected with the sealing seat ring (10) through a pressing plate (11).
7. A sealing structure of a direct drive wind power generator according to claim 6, characterized in that: the outer side of the upper half ring of the stator sealing end cover (2) is provided with a rain baffle seat ring (12), and the rain baffle (5) is connected with the stator sealing end cover (2) through the rain baffle seat ring (12).
8. A sealing structure of a direct drive wind power generator according to claim 7, wherein: the waterproof ring plate (4) and the rain baffle plate (5) are of split structures.
9. A sealing structure of a direct drive wind power generator according to claim 8, wherein: the waterproof ring plate (4) and the rain baffle plate (5) are made of unsaturated polyester glass fiber reinforced molding compound SMC.
CN201921465862.6U 2019-09-05 2019-09-05 Sealing structure of direct-drive wind driven generator Active CN210350908U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921465862.6U CN210350908U (en) 2019-09-05 2019-09-05 Sealing structure of direct-drive wind driven generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921465862.6U CN210350908U (en) 2019-09-05 2019-09-05 Sealing structure of direct-drive wind driven generator

Publications (1)

Publication Number Publication Date
CN210350908U true CN210350908U (en) 2020-04-17

Family

ID=70177085

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921465862.6U Active CN210350908U (en) 2019-09-05 2019-09-05 Sealing structure of direct-drive wind driven generator

Country Status (1)

Country Link
CN (1) CN210350908U (en)

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