CN216044198U

CN216044198U - Hub ventilation structure of wind generating set

Info

Publication number: CN216044198U
Application number: CN202122082531.8U
Authority: CN
Inventors: 顾晶晶
Original assignee: Huaneng New Energy Shanghai Power Generation Co ltd
Current assignee: Huaneng New Energy Shanghai Power Generation Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-15
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a hub ventilation structure of a wind generating set, which comprises a hub of the wind generating set, wherein a hub cover is arranged at the end part of the hub, an axial flow fan is fixedly arranged at the front end in the hub cover, a circular cover plate is arranged right in front of the hub cover, an arc-shaped opening window is formed in the circular cover plate, the opening window is concentric with the center of the circular cover plate, a connecting part is arranged on one side of the opening window, a locking device is arranged on the opening window arc, a cross beam is fixedly arranged in the opening window close to the interior of the hub cover and connected with a hydraulic support rod, and the other end of the hydraulic support rod is fixed on the inner wall of the hub cover. The utility model solves the problems that the heat dissipation effect in the existing hub structure is poor, and the normal operation of components in the hub under the high-temperature condition cannot be ensured.

Description

Hub ventilation structure of wind generating set

Technical Field

The utility model belongs to the technical field of wind power generation, and relates to a hub ventilation structure of a wind generating set.

Background

With the increasing energy consumption and the increasing demand for environmental protection, the development of renewable new energy is more and more emphasized, wherein wind power generation is one of the fastest-developing new energy, a wind generating set is the most important way for wind power development to transmit wind power to a power grid in a large scale, a hub in the wind generating set is one of important parts, the hub is used for connecting a blade and a main shaft in the wind generating set and finally connected to the rest parts of a transmission system and transmits and bears all loads from the blade, a relatively closed guide cover is arranged outside the hub, the internal temperature is too high due to sunlight irradiation and air non-circulation in the hub in summer, normal operation of components in the hub cannot be ensured, a maintainer is very easy to sunstroke during maintenance operation in the hub, the safety and reliability of normal operation of the wind generating set are influenced, and the existing technology is used for heat dissipation of the hub in a hub ventilation structure, rainwater easily enters the hub and has poor heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hub ventilation structure of a wind generating set, and solves the problems that the existing hub structure is poor in heat dissipation effect and cannot ensure normal operation of components in a hub under a high-temperature condition.

The technical scheme includes that the wind generating set hub ventilation structure comprises a wind generating set hub, a hub cover is arranged at the end portion of the hub, an axial flow fan is fixedly arranged at the front end inside the hub cover, a circular cover plate is arranged right in front of the hub cover, an arc-shaped opening window is formed in the circular cover plate, the opening window is concentric with the center of the circular cover plate, a connecting portion is arranged on one side of the opening window, a locking device is arranged on the opening window arc, a cross beam is fixedly arranged in the opening window close to the inside of the hub cover and connected with a hydraulic support rod, and the other end of the hydraulic support rod is fixed on the inner wall of the hub cover.

The present invention is also characterized in that,

an inclined surface is arranged between the circumference of the opening window and the circular cover plate to form a fastening surface in a transition way, an annular sealing strip is arranged on the circumference of the opening window, the shape of the sealing strip corresponds to that of the circular cover plate,

the window is made of glass fiber reinforced plastic, and the cross beam is made of steel.

The connecting part adopts a hinge; the locking device adopts a lock catch.

The mounting holes are uniformly formed in the circumferential direction of the circular cover plate, and the circular cover plate is fixed on the wheel hub cover through the mounting holes.

The handle is arranged on the window.

The utility model has the beneficial effects that: according to the hub ventilation structure of the wind generating set, the window 5 is closed during operation, and the locking device 4 is locked to keep reliable sealing; when the ventilation device is started, the locking device 4 is opened, the opening window 5 of the hub can be kept opened at any position under the action of the hydraulic support rod 8, the environmental temperature in the hub is reduced, the overhaul operation environment in the hub is improved, and the operation safety is guaranteed.

Drawings

FIG. 1 is a schematic structural view of a hub ventilation structure of a wind turbine generator system according to the present invention;

in the figure, 1, a mounting hole, 2, a connecting part, 3, a cross beam, 4, a locking device, 5, a window, 6, a handle, 7, an axial flow fan and 8, a hydraulic support rod are arranged.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

The utility model relates to a hub ventilation structure of a wind generating set, which comprises a hub of the wind generating set, wherein a hub cover is arranged at the end part of the hub, an axial flow fan 7 is fixedly arranged at the front end in the hub cover, a circular cover plate is arranged right in front of the hub cover, an arc-shaped window 5 is formed in the circular cover plate, the window 5 is concentric with the center of the circular cover plate, a connecting part 2 is arranged at one side of the window 5, a locking device 4 is arranged on the arc-shaped window 5, a cross beam 3 is fixedly arranged in the window 5 close to the interior of the hub cover, the cross beam 3 is connected with a hydraulic support rod 8, and the other end of the hydraulic support rod 8 is fixed on the inner wall of the hub cover.

Be equipped with the inclined plane transition between 5 circumference of windowing and the circular apron and form the fastening face, 5 circumference of windowing set up the annular sealing strip, and the shape and the circular apron of sealing strip are corresponding, and the fit clearance realizes 5 effectual sealings of windowing through setting up the sealing strip, prevents that sand blown by wind, rain fog etc. from getting into the inside invasion and attack wind turbine generator system of hubcap by the clearance, guarantees wind turbine generator system performance and life-span.

The mounting holes 1 are uniformly formed in the circumferential direction of the circular cover plate, the circular cover plate is fixed on the wheel hub cover through the mounting holes 1, and the window 5 is provided with a handle 6.

In the embodiment, the window 5 is made of glass fiber reinforced plastic, the beam 3 is made of steel, and the steel beam 3 is arranged to be reliably connected with the inner wall of the wheel hub cover and the hydraulic support rod 8; the connecting part 2 adopts a hinge; the locking device 4 adopts a lock catch, and the cover plate is connected with the cover body through the locking device 4.

The hubcap is the important part that bears the wind-load, axial fan 7 gets the electricity at wheel hub, realize the air cycle of hubcap inside and outside, because hubcap inner space and wheel hub inner space intercommunication, through the inside and outside air cycle heat transfer of hubcap, can bring the heat in the wheel hub to the air, axial fan 7's wind channel direct alignment wheel hub front end's export, hydraulic support rod 8 will open the window 5 and adjust to arbitrary angle, thereby effectively dispel the heat to wind generating set, have sufficient rigidity and intensity in order to bear the various load operating modes of wind-force hubcap during operation.

The utility model relates to a working process of a hub ventilation structure of a wind generating set, which comprises the following steps: connecting a power supply of the axial flow fan 7 to the maintenance socket, blowing air into the hub by the axial flow fan 7, closing the windowing 5 during operation, locking the lock catch and keeping reliable sealing; when the ventilation device is opened, the lock catch is opened firstly, the windowing 5 is opened under the action of the hydraulic support rod, so that the hub can be kept to be opened at any position, the environmental temperature in the hub is reduced, the maintenance operation environment in the hub is improved, and the operation safety is guaranteed.

The hub ventilation structure of the wind generating set improves the front windward end of the hub cover, is low in modification cost, strong in practicability, high in overall strength, convenient to install, small in construction risk, high in efficiency, capable of being installed quickly, good in stability of the hub cover, capable of reducing the burden of maintenance personnel, improving the safety performance and guaranteeing the service performance and service life of the wind generating set.

Claims

1. The utility model provides a wind generating set wheel hub ventilation structure, a serial communication port, including wind generating set wheel hub, the wheel hub tip sets up the wheel hub cover, the fixed axial fan (7) that sets up in inside front end of wheel hub cover, set up circular apron in the dead ahead of wheel hub cover, set up convex windowing (5) on the circular apron, windowing (5) and circular apron center are concentric, windowing (5) one side sets up connecting portion (2), set up locking device (4) on windowing (5) arc, windowing (5) are close to wheel hub cover inside fixed crossbeam (3) that sets up, hydraulic support pole (8) are connected in crossbeam (3), hydraulic support pole (8) other end is fixed at the wheel hub cover inner wall.

2. The hub ventilation structure of the wind generating set according to claim 1, wherein an inclined transition is formed between the circumference of the window (5) and the circular cover plate to form a fastening surface, and an annular sealing strip is arranged on the circumference of the window (5) and has a shape corresponding to the circular cover plate.

3. The hub ventilation structure of the wind generating set according to claim 1, wherein the fenestration (5) is made of glass fiber reinforced plastic and the cross beam (3) is made of steel.

4. The hub ventilation structure of the wind generating set according to claim 1, characterized in that the connecting part (2) adopts a hinge; the locking device (4) adopts a lock catch.

5. The ventilation structure for the hub of the wind generating set according to claim 1 is characterized in that the circular cover plate is uniformly provided with mounting holes (1) in the circumferential direction, and the mounting holes (1) fix the circular cover plate on the hub cover.

6. A wind turbine hub ventilation structure according to claim 1, characterized in that the window (5) is provided with a handle (6).