阅读说明：本技术 一种双馈式发电风机机舱及其运行方法 (Double-fed power generation fan cabin and operation method thereof ) 是由 李晓春 王学伟 叶明川 于 2019-08-16 设计创作，主要内容包括：本发明提供了一种双馈式发电风机机舱及其运行方法,属于发电风机机舱结构技术领域,其主要通过布置轴流风机,以使发电风机机舱本体内外形成空气循环,提高了机舱本体内外的对流能力,从而提高了机舱本体内的降温效果,同时布置第二风冷冷却器对齿轮箱组件的润滑油进行有效降温,降低了齿轮箱组件出现宕机现象的风险,且本发明通过调整轴流风机进风量,使发电风机机舱处于正压状态,有效改善了风机在长期运行过程当中的集尘情况,提高了风机的使用寿命。(The invention provides a double-fed generating fan cabin and an operation method thereof, belonging to the technical field of generating fan cabin structures.)

1. The utility model provides a double-fed formula electricity generation fan cabin, includes the cabin body, this internal generator, gear box subassembly and the blade main shaft that arranges in proper order along its afterbody to the direction of its head that is provided with in cabin, the generator passes through the gear box subassembly and is connected with blade spindle drive, this internal first forced air cooling cooler of arranging in the top of gear box subassembly that still is provided with in cabin, the air inlet end of first forced air cooling cooler is towards the gear box subassembly, and its air-out end then extends the cabin body outside through the top of first kuppe by the cabin body, its characterized in that: the engine room is characterized in that a second air-cooled cooler is further arranged in the engine room body, two axial flow fans are used for forming circulating flowing air flow inside and outside the engine room body, the two axial flow fans are arranged in the engine room body and are respectively positioned on the left side and the right side of the tail portion of the engine room body, air inlet ends of the two axial flow fans extend out of corresponding side portions of the engine room body, the second air-cooled cooler is arranged above the gear box assembly, an air inlet end of the second air-cooled cooler faces towards the gear box assembly, an air outlet end of the second air-cooled cooler extends out of the engine room body from the top of the engine room body through a second flow guide cover, and the first air-cooled cooler and the second air-cooled cooler are connected between a lubricating oil outlet end and a lubricating oil inlet end of the gear box assembly in series.

2. A doubly-fed wind generator nacelle according to claim 1 wherein: the gearbox assembly is arranged between the gearbox assembly and the second air-cooled cooler, and the second air-cooled cooler is supported by the gearbox assembly through the bracket.

3. A doubly-fed wind generator nacelle according to claim 1 wherein: the second air-cooled cooler is a plate-fin air-cooled cooler.

4. A doubly-fed wind generator nacelle according to claim 1 wherein: and the air outlet end of the second air guide sleeve is closer to the head of the cabin of the power generation fan than the air outlet end of the first air guide sleeve.

5. A doubly-fed wind generator nacelle according to claim 1 wherein: the air outlet ends of the first air guide sleeve and the second air guide sleeve face the direction of the tail of the engine room body.

6. A doubly-fed wind generator nacelle according to claim 1 wherein: the air inlet end of the axial flow fan is covered with a dust screen.

7. a doubly-fed wind generator nacelle according to claim 1 wherein: the second air-cooled cooler is closer to the head of the nacelle body than the first air-cooled cooler.

8. A double-fed power generation fan operation method is characterized in that: the power generation fan comprises a double-fed power generation fan cabin as claimed in any one of claims 1 to 7, and when the fan is operated, the cabin body is in a positive pressure state by adjusting the air inlet volume of the axial flow fan and the air outlet volumes of the first air-cooled cooler and the second air-cooled cooler.

Technical Field

The invention relates to the technical field of a generator-fan cabin structure, in particular to a double-fed generator-fan cabin and an operation method thereof.

Background

The engine room of the most double-fed wind power generation fan used in the wind power industry at present mainly comprises an engine room body, a generator and a gear box assembly which are sequentially arranged in the engine room body from the tail part of the engine room body to the head part of the engine room body, and a first air-cooled cooler arranged above the top part of the gear box assembly. The liquid inlet end and the liquid outlet end of the first air-cooled cooler are respectively communicated with the liquid inlet end and the liquid outlet end of the lubricating oil circuit of the gear box assembly correspondingly and are used for forcibly cooling lubricating oil in the lubricating oil circuit of the gear box assembly. The traditional cabin structure does not fully consider the problems of loss and heat generation increase of parts such as the gear box assembly along with the increase of service life, and has the defect of poor temperature reduction effect of the gear box assembly. Simultaneously, because this internal air cycle that does not form of cabin, the cooling effect of cabin body inside is relatively poor.

Disclosure of Invention

In summary, the technical problem solved by the present invention is: the double-fed generating fan engine room can improve the cooling effect of the gear box assembly and effectively improve the cooling effect inside the engine room body.

The scheme adopted by the invention for solving the technical problems is as follows:

A double-fed generating fan cabin comprises a cabin body, wherein a generator, a gear box component and a blade main shaft which are sequentially arranged along the direction from the tail part to the head part of the cabin body are arranged in the cabin body, the generator is in transmission connection with the blade main shaft through the gear box component, a first air-cooled cooler arranged above the top part of the gear box component is also arranged in the cabin body, the air inlet end of the first air-cooled cooler faces the gear box component, the air outlet end of the first air-cooled cooler extends out of the cabin body from the top part of the cabin body through a first flow guide cover, a second air-cooled cooler and two axial flow fans used for forming circulating flowing air flow inside and outside the cabin body are also arranged in the cabin body and are respectively positioned on the left side and the right side of the tail part of the cabin body, the air inlet ends of the two axial flow fans extend out of the corresponding side part of the cabin body, the second air-cooled cooler is arranged above the gear box assembly, the air inlet end of the second air-cooled cooler faces the gear box assembly, the air outlet end of the second air-cooled cooler extends out of the engine room body from the top of the engine room body through the second dome, and the first air-cooled cooler and the second air-cooled cooler are connected in series or in parallel between the lubricating oil liquid outlet end and the lubricating oil liquid inlet end of the gear box assembly.

Further, the second air-cooled cooler is a plate-fin air-cooled cooler.

further, the air outlet end of the second air guide sleeve is closer to the head of the cabin of the generating fan than the air outlet end of the first air guide sleeve.

Further, the air outlet ends of the first air guide sleeve and the second air guide sleeve are towards the tail of the engine room body.

Furthermore, the air inlet end of the axial flow fan is covered with a dust screen.

Further, the second air-cooled cooler is closer to the head of the nacelle body than the first air-cooled cooler.

The invention also provides an operation method based on the double-fed generating fan cabin, namely, when the fan operates, the cabin body is in a positive pressure state by adjusting the air inlet volume of the axial flow fan and the air outlet volumes of the first air-cooled cooler and the second air-cooled cooler, so that dust collection of the cabin body is effectively avoided.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

According to the invention, the axial flow fan is mainly arranged, so that air circulation is formed inside and outside the cabin body of the generating fan, and the convection capacity inside and outside the cabin body is improved, thereby improving the cooling effect inside the cabin body, and meanwhile, the second air cooling cooler is arranged to cool the lubricating oil of the gear box component, so that the temperature of the oil liquid of the gear box component is in a reasonable range, and the risk of the gear box component being crashed is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a series arrangement of the gearbox assembly, the first air-cooled chiller and the second air-cooled chiller;

FIG. 3 is a schematic diagram of a parallel connection between the gearbox assembly, the first air-cooled cooler, and the second air-cooled cooler.

[ Specification of symbols ]

1-a generator, 2-a gearbox assembly, 3-a first air-cooled cooler, 4-a first air guide sleeve, 5-an axial flow fan, 6-a second air-cooled cooler, 7-a second air guide sleeve and 8-a support.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

in the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.