CN211287978U

CN211287978U - Connecting cabin of semi-direct-drive wind turbine generator and semi-direct-drive wind turbine generator comprising connecting cabin

Info

Publication number: CN211287978U
Application number: CN202020010282.4U
Authority: CN
Inventors: 褚景春; 袁凌; 刘金鹿; 潘磊; 汪正军
Original assignee: Guodian United Power Technology Co Ltd
Current assignee: Guodian United Power Technology Co Ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-08-18
Anticipated expiration: 2030-01-03

Abstract

The utility model discloses a half direct drive formula wind turbine generator system's connection cabin reaches half direct drive formula wind turbine generator system including it belongs to the wind turbine generator system field, and the connection cabin is used for connecting between half direct drive formula wind turbine generator system's gear box and the generator, including the cabin body with connect the flange at cabin body both ends, be equipped with a plurality of connect the through-hole that are used for being connected with gear box or generator on the flange, cabin body both sides face is equipped with observation window for the business turn over of maintenance personal and instrument. The utility model discloses an increase the connection cabin between gear box and generator to increase the observation window in connection cabin both sides, just get into the enclosure space that originally can not get into with the maintainer, improved the accessibility of generator front end and gear box rear end spare greatly.

Description

Connecting cabin of semi-direct-drive wind turbine generator and semi-direct-drive wind turbine generator comprising connecting cabin

Technical Field

The utility model relates to a wind turbine generator system field especially relates to a half direct-drive wind turbine generator system's connection cabin reaches half direct-drive wind turbine generator system including it.

Background

At present, a large-megawatt wind turbine generator set becomes a main development trend of the wind power industry, and particularly, an offshore wind turbine generator set with single machine power of more than 5 megawatts becomes a key point for development of each complete machine manufacturer. In the existing known technical route, the double-fed generator set has high fault rate of a generator rotor and a power collecting ring, the direct-drive set has large volume and weight and is easy to deform, and the power factor and the efficiency of a squirrel cage set are low.

At present, a large-megawatt semi-direct-drive wind turbine generator set adopts a cabin-free mode, and a permanent magnet generator and a gear box are directly connected by a fastener in a flange mode.

The existing semi-direct-drive wind turbine generator set adopts an inorganic cabin structure, and adopts a connection mode of a flange and a fastener between a coupler postposition/generator and a gear box. Because the space between the generator and the gear box is completely closed, once the front bearing of the generator, the related sensors and other components have problems, the on-site inspection cannot be carried out, and the on-site maintenance cannot be carried out. Even if the simple operation of checking and replacing individual bolts is performed, the whole unit needs to be lifted to the ground, and the parts behind the gear box of the unit can be disassembled to check and replace, so that the maintenance and repair cost is high.

If the structure is used on an offshore wind turbine, the maintenance difficulty is higher due to the limitation of various factors such as the operating environment, the sea condition, the maintenance of ship equipment and the like, the breakdown of the whole turbine due to the failure of one part is easy to occur, and a great hidden danger is buried in the operation of the large-megawatt offshore wind turbine.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a half direct drive formula wind turbine generator system's connection cabin reaches half direct drive formula wind turbine generator system including it, through increasing the connection cabin between gear box and generator to increase the observation window in connection cabin both sides, just get into the enclosure space that originally can not get into with the maintainer, improved the maintainability of generator front end and gear box rear end part greatly.

In order to solve the technical problem, the utility model provides a technical scheme as follows:

on the one hand, the utility model provides a connection cabin of half direct-drive formula wind turbine generator system is used for connecting between half direct-drive formula wind turbine generator system's gear box and the generator, including the cabin body with connect the flange at cabin body both ends, be equipped with a plurality of connect the via hole that are used for being connected with gear box or generator on the flange, cabin body both sides face is equipped with observation window for the business turn over of maintainer and instrument.

Further, the observation window is covered with a window cover plate which can be opened and closed.

Furthermore, the window cover plate and the cabin body are connected in a fastener connection mode or a hinge and bolt connection mode.

Further, a base is arranged at the bottom in the cabin body.

Further, the base and the cabin body are connected or welded by adopting a fastener.

Further, various interfaces are arranged on the base and used for assembling maintenance or detection tools according to needs.

Furthermore, a plurality of reinforcing ribs are connected between the flanges at the two sides outside the cabin body.

Further, the number of the reinforcing ribs above the cabin body is 5-10, and the number of the reinforcing ribs below the cabin body is 6-12.

Furthermore, the flange and the cabin body, the reinforcing ribs, the flange and the cabin body are welded.

On the other hand, the semi-direct-drive wind turbine generator comprises a gear box and a generator, and comprises a connecting cabin of the semi-direct-drive wind turbine generator, wherein the connecting cabin is connected between the gear box and the generator.

Further, the tail cabin is connected to the tail part of the generator.

Further, the wind power generator further comprises a cabin arranged outside the gearbox, the generator and the connecting cabin.

Further, the center of gravity of the generator is moved forward by adopting a reverse coupling.

After adopting such design, the utility model discloses following advantage has at least:

(1) the utility model discloses an increase the connection cabin between gear box and generator to increase the observation window in connection cabin both sides, just get into the enclosure space that originally can not get into with the maintainer, improved the accessibility of generator front end and gear box rear end spare greatly.

(2) The utility model discloses still through the additional concentrated atress mode of establishing the strengthening rib in the cabin body, especially set up the strengthening rib in connecting the cabin upper and lower position, the cylindrical even atress mode in cabin is connected to fungible traditional trade, when guaranteeing the structural strength who connects the cabin, leaves the space for connecting the cabin left and right sides and opening the observation window.

(3) The utility model discloses an increase the connection cabin to increase the observation window in connection cabin both sides, just get into the enclosure space that originally can not get into with the maintainer, the inside base of cabin is connected in the cooperation, can install various instrument frocks according to the demand, realizes maintenance, maintenance and the change to each part in the former enclosure space. The design greatly improves the troubleshooting and recovery speed of the unit, and avoids the long-term shutdown of the unit caused by the faults of certain small parts between the generator and the gear box.

Drawings

The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Fig. 1 is a schematic connection diagram of main components of a semi-direct drive wind turbine generator set according to the present invention;

fig. 2 is a schematic structural diagram of an embodiment of a connection cabin of the semi-direct drive wind turbine generator set according to the present invention;

fig. 3 is a schematic side structural view of an embodiment of a connecting cabin of the semi-direct drive wind turbine generator of the present invention;

fig. 4 is a sectional view a-a of fig. 3.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The utility model provides an embodiment of half direct drive formula wind turbine generator system's connection cabin, as shown in FIG. 1 for connect between half direct drive formula wind turbine generator system's gear box 3 and generator 5, the concrete structure of connection cabin 4 is as shown in FIG. 2 to FIG. 4, including the cabin body 42 with connect the flange 41 at cabin body 42 both ends, be equipped with on the flange 41 and be used for a plurality of connect the through hole 44 of being connected with gear box 3 or generator 5, cabin body 42 both sides face is equipped with observation window 451 for the business turn over of maintainer and instrument.

The utility model discloses an increase the connection cabin between gear box and generator to increase observation window in connection cabin both sides, just get into the enclosure space that originally can not get into with the maintainer, improved the accessibility of generator front end and gear box rear end spare greatly.

Generally, the flange 41 and the cabin 42 are connected by welding.

In order to maintain good sealing performance, the observation window 451 is covered with a openable window cover plate 45, and the window cover plate 45 is preferably connected with the cabin 42 by fasteners or by a hinge and latch structure.

In order to increase the strength of the cabin, a plurality of reinforcing ribs 43 may be connected between the flanges 41 outside the cabin 42. In this embodiment, through adopting the concentrated stress mode of setting up the strengthening rib additional, replace the even stress mode of the cylindrical of traditional trade connection cabin, when guaranteeing the structural strength of connection cabin, leave the space for the observation window that opens in the left and right sides of connection cabin, namely generally set up strengthening rib 43 in cabin body 42 upper and lower position.

Generally, the reinforcing ribs 43 are connected to the flange 41 and the cabin 42 by welding.

The number of the reinforcing ribs can be adjusted according to the structural strength required in the unit design, generally, the number of the reinforcing ribs 43 located above the cabin 42 is 5-10, and the number of the reinforcing ribs 43 located below the cabin 42 is 6-12.

For convenience of maintenance, a base 46 is disposed at the bottom of the cabin 42, and the base 46 and the cabin 42 are generally welded or connected by fasteners. Specifically, various interfaces are arranged on the base 46, and maintenance or detection tools such as screw holes, studs, jacks and the like can be assembled according to needs, so that the generator front bearing, the sensor, the gear box rear bearing and other parts can be overhauled and replaced.

The utility model discloses an each part has following structural feature:

1) flanges 41 are provided at both ends of the connection cabin 4 for connection with the gear box 3 and the generator 5.

2) The flange 41 is provided with connecting through holes 44 uniformly distributed along the circumferential direction for installing fasteners such as bolts and the like when being connected with the gear box 3 and the generator 5. The number of through holes 44 is determined as needed, and 24 connecting through holes 44 are preferred in this example.

3) The flange 41 and the cabin 42 are connected in a welding mode and reinforced through the reinforcing ribs 43, so that the overall strength is improved.

4) The strengthening rib adopts welding mode to be connected with flange 41, cabin body 42, and the quantity can be adjusted according to required structural strength when the unit design to strengthening rib 43, and cabin body 42 top design quantity is 6 in this example, and bottom design quantity is 8.

5) The cabin 42 has observation windows 451 on both sides thereof for the entry and exit of maintenance personnel and tools. The observation window 451 is covered with a window cover plate 45. The window cover 45 is preferably connected to the cabin 42 by fasteners, and hinge and latch arrangements may be used.

6) A base 46 is disposed below the observation window 451 in the cabin 42, and the base 46 is preferably welded to the cabin 42, or may be fastened to the cabin 42.

7) Various interfaces are arranged on the base 46, and maintenance and detection tools such as screw holes, studs, jacks and the like can be assembled according to requirements, so that the generator front bearing, the sensor, the gear box rear bearing and other parts can be overhauled and replaced.

On the other hand, a semi-direct-drive wind turbine generator is provided, as shown in fig. 1, which includes a gear box 3 and a generator 5, and includes a connection cabin 4 of the above semi-direct-drive wind turbine generator, and the connection cabin 4 is connected between the gear box 3 and the generator 5. And may also include a tail capsule 6 connected to the rear of the generator 5. And the power generator also comprises a cabin arranged outside the gear box 3, the power generator 5 and the connecting cabin 4.

The utility model discloses a half direct drive formula wind turbine generator system structure does, as shown in FIG. 1:

a) the blades 2 are arranged on the hub 1, and the number of the blades 2 is 2 or more, preferably 3;

b) the hub 1 is connected with the gear box 3 through a main bearing;

c) one end of the connecting cabin 4 is connected with the gear box 3 through flanges on two end faces, and the other end of the connecting cabin is connected with the generator 5 which is generally a permanent magnet generator;

d) the tail cabin 6 is connected with the tail part of the generator 5 through a flange.

e) One end of the coupler and the brake system 8 is connected with the tail part of the generator 5, and the other end is connected with the hollow main shaft 7.

f) The gear box 3, the connecting cabin 4 and the generator 5 are all hollow, and the hub 1 and the hollow main shaft 7 penetrate through the hollow parts of the three parts and are connected with the hub 1 at the front end of the unit.

In this embodiment, according to actual conditions, an inorganic nacelle structure as shown in fig. 1 may be adopted, or a nacelle may be added, and the remaining components except for the blades 2 and the hub 1 are all wrapped in the nacelle, so as to improve the protection level of each component.

The utility model adopts the reverse coupling to move the gravity center of the generator forward; a multifunctional connecting cabin is connected between the generator and the gear box; the maintainability of the related parts of the rear bearing of the gear box and the front bearing of the generator is improved by adjusting the gravity center position of the whole set. The utility model discloses the function is perfect, can realize that the on-the-spot maintenance of big megawatt especially big megawatt half direct drive wind turbine generator system of marine type, maintenance and the change of parts such as generator front bearing.

The utility model discloses to the defect of the semi-direct drive type unit maintenance difficulty of current wind-powered electricity generation trade, provide a mode that increases the connection cabin between generator and gear box, improved the accessibility of generator front end and gear box rear end part greatly. Through increasing the connection cabin to increase the observation window in connection cabin both sides, just get into the enclosure space that originally can not get into with the maintainer, the inside base of cabin is connected in the cooperation, can install various instrument frocks according to the demand, realizes maintenance, maintenance and the change to each part in the original enclosure space. The design greatly improves the troubleshooting and recovery speed of the unit, and avoids the long-term shutdown of the unit caused by the faults of certain small parts between the generator and the gear box.

The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.

Claims

1. The utility model provides a connection cabin of half direct drive formula wind turbine generator system for connect between half direct drive formula wind turbine generator system's gear box and generator, its characterized in that, including the cabin body with connect the flange at cabin body both ends, be equipped with on the flange and be used for a plurality of connect the via hole of being connected with gear box or generator, cabin body both sides face is equipped with observation window for the business turn over of maintenance personal and instrument.

2. The connection cabin of the semi-direct drive wind turbine generator set according to claim 1, wherein the observation window is covered with a openable and closable window cover plate.

3. The connecting cabin of the semi-direct drive wind turbine generator according to claim 2, wherein the window cover plate is connected with the cabin body by a fastener or by a hinge and a bolt.

4. The connecting cabin of the semi-direct drive wind turbine generator according to claim 1, wherein a base is arranged at the bottom inside the cabin body.

5. The connecting cabin of the semi-direct drive wind turbine generator set according to claim 4, wherein the base is provided with various interfaces for assembling maintenance or detection tools as required;

and/or the base and the cabin body are connected or welded by adopting a fastener.

6. The connecting cabin of the semi-direct drive wind turbine generator according to any one of claims 1 to 5, wherein a plurality of reinforcing ribs are connected between the flanges at two sides outside the cabin body.

7. The connecting cabin of the semi-direct drive wind turbine generator set according to claim 6, wherein the number of the reinforcing ribs above the cabin body is 5-10, and the number of the reinforcing ribs below the cabin body is 6-12.

8. The connecting cabin of the semi-direct drive wind turbine generator according to claim 6, wherein welding is adopted between the flange and the cabin body, and welding is adopted between the reinforcing rib and the flange and between the flange and the cabin body.

9. A semi-direct drive wind turbine generator set, comprising a gear box and a generator, and characterized by further comprising a connection cabin of the semi-direct drive wind turbine generator set according to any one of claims 1 to 8, wherein the connection cabin is connected between the gear box and the generator.

10. The wind turbine generator set according to claim 9, further comprising a tail cabin connected to the tail of the generator;

and/or, also include the cabin set up outside gear box, generator, connection cabin;

and/or, a reverse coupling is adopted to move the gravity center of the generator forward.