阅读说明：本技术 一种垂直旋叶轮式海洋潮流能发电装置 (Vertical rotary impeller type ocean tidal current energy power generation device ) 是由 李永存 秦善鹏 史安邦 王勇 张旭昀 李伟 于 2021-09-08 设计创作，主要内容包括：一种垂直旋叶轮式海洋潮流能发电装置,在旋叶轮筒体外表面周向均布有若干采用S型螺旋叶片的旋叶轮叶片；旋叶轮筒体同轴套装在空心结构的定子中心轴外侧；定子中心轴两端均固装有密封盖板,密封盖板与旋叶轮筒体之间接缝处设有密封圈；与上下密封盖板相邻的定子中心轴及旋叶轮筒体之间设有上下行星轮系；沿定子中心轴轴向等间距设有若干定子线圈组,定子线圈组由周向均布的若干定子线圈组成；定子线圈的导线通过定子中心轴的中心孔引出并接入外部变电站；定子线圈表面喷涂有防水防锈胶；沿旋叶轮筒体内表面轴向均布设若干转子永磁体组,转子永磁体组由周向均布的若干转子永磁体组成；转子永磁体组与定子线圈组在轴向上交替分布。(A vertical rotary impeller type ocean tidal current energy power generation device is characterized in that a plurality of rotary impeller blades adopting S-shaped helical blades are uniformly distributed on the outer surface of a rotary impeller cylinder in the circumferential direction; the rotary impeller cylinder is coaxially sleeved outside a stator central shaft of the hollow structure; sealing cover plates are fixedly arranged at two ends of the stator central shaft, and sealing rings are arranged at seams between the sealing cover plates and the rotary impeller cylinder; an upper planetary gear train and a lower planetary gear train are arranged between the stator central shaft and the rotary impeller cylinder which are adjacent to the upper sealing cover plate and the lower sealing cover plate; a plurality of stator coil groups are arranged at equal intervals along the axial direction of a stator central shaft, and each stator coil group consists of a plurality of stator coils which are uniformly distributed in the circumferential direction; a lead of the stator coil is led out through a central hole of a central shaft of the stator and is connected into an external transformer substation; the surface of the stator coil is sprayed with waterproof and antirust glue; a plurality of rotor permanent magnet groups are distributed along the axial direction of the inner surface of the rotary impeller cylinder body, and each rotor permanent magnet group consists of a plurality of rotor permanent magnets which are uniformly distributed in the circumferential direction; the rotor permanent magnet groups and the stator coil groups are alternately distributed in the axial direction.)

1. The utility model provides a perpendicular impeller formula ocean trend can power generation facility which characterized in that: the rotor comprises a rotor wheel cylinder, rotor wheel blades, a stator central shaft, a stator coil, a rotor permanent magnet, a lower planetary gear train, an upper planetary gear train, a lower sealing cover plate and an upper sealing cover plate; the rotary impeller cylinder body adopts a cylindrical structure; the impeller blades are S-shaped helical blades, the number of the impeller blades is a plurality, and the impeller blades are uniformly distributed along the circumferential direction of the outer surface of the impeller cylinder; the stator central shaft adopts a hollow shaft structure, and the rotary impeller cylinder is coaxially sleeved outside the stator central shaft; the lower sealing cover plate is coaxially and fixedly arranged at the bottom end of the central shaft of the stator, and a sealing ring is arranged at the joint between the lower sealing cover plate and the rotary impeller cylinder; the upper sealing cover plate is coaxially and fixedly arranged at the top end of the stator central shaft, and a sealing ring is arranged at the joint between the upper sealing cover plate and the rotary impeller cylinder; the lower planetary gear train is arranged between the stator central shaft adjacent to the lower sealing cover plate and the rotary impeller cylinder; the upper planetary gear train is arranged between the stator central shaft adjacent to the upper sealing cover plate and the rotary impeller cylinder; the stator coils are distributed in the circumferential direction along the outer surface of the central shaft of the stator, and the stator coils in the same plane form a stator coil group; the number of the stator coil groups is a plurality, and the stator coil groups are distributed at equal intervals along the axial direction of the central shaft of the stator; a lead of the stator coil is led out through a central hole of a central shaft of the stator and is connected into an external transformer substation; spraying waterproof and antirust glue on the surface of the stator coil; the rotor permanent magnets are uniformly distributed along the circumferential direction of the inner surface of the rotary impeller cylinder, and the rotor permanent magnets in the same plane form a rotor permanent magnet group; the number of the rotor permanent magnet groups is a plurality, the rotor permanent magnet groups are distributed at equal intervals along the axial direction of the rotary impeller cylinder, and the rotor permanent magnet groups and the stator coil groups are alternately distributed in the axial direction.

2. The vertical rotary impeller type ocean current energy power generation device according to claim 1, wherein: the lower planetary gear train and the upper planetary gear train have the same structure and respectively comprise a sun gear, a planet gear and an outer gear ring, and the planet gear is simultaneously meshed with the sun gear and the outer gear ring; the sun gear is coaxially sleeved on the stator central shaft through a bearing; the outer gear ring is coaxially and fixedly sleeved on the inner surface of the rotary impeller cylinder; the number of planet wheels of the lower planetary gear train is a plurality, and the planet wheels are uniformly distributed along the circumferential direction and are arranged on the lower sealing cover plate; a sealing support bearing is arranged between the outer gear ring of the lower planetary gear train and the lower sealing cover plate; the number of planet wheels of the upper planet wheel train is a plurality, and the planet wheels are uniformly distributed along the circumferential direction and are arranged on the upper sealing cover plate; and a sealing support bearing is arranged between the outer gear ring of the upper planetary gear train and the upper sealing cover plate.

Technical Field

The invention belongs to the technical field of water conservancy power generation, and particularly relates to a vertical rotary impeller type ocean tidal current energy power generation device.

Background

The tidal current energy water turbine is an important component of renewable energy utilization equipment and can be divided into a horizontal-axis tidal current energy water turbine and a vertical-axis tidal current energy water turbine according to different structures, wherein the horizontal-axis tidal current energy water turbine is most commonly applied.

At present, the most widely applied horizontal axis tidal current energy water turbine mostly adopts a windmill type, the power generation principle of the horizontal axis tidal current energy water turbine is similar to that of a horizontal axis wind turbine, and the density of seawater is far higher than that of air, so that the horizontal axis tidal current energy water turbine can have a better energy conversion coefficient in a water body, and has the advantages of high energy conversion efficiency, large self-starting torque and the like. However, the traditional horizontal-axis tidal current energy water turbine has the defects that the blade structure is complex, the manufacturing and processing difficulty is high, the cavitation phenomenon is easy to generate in a water body, and the tidal current direction is required to be adapted through frequent steering.

In addition, because the tidal current energy water turbine needs to be in an underwater operation environment for a long time, the sealing performance of the tidal current energy water turbine directly determines the power generation stability, but the traditional horizontal axis tidal current energy water turbine and the traditional vertical axis tidal current energy water turbine are limited by structures, the sealing performance is easily reduced at a complex movement joint, the seawater corrosion is increased, and the service life of the tidal current energy water turbine is recently shortened. In order to prolong the service life of the tidal current energy water turbine, the tidal current energy water turbine is generally required to be maintained in a severe marine underwater environment, so that the maintenance difficulty is high, and the use cost of the tidal current energy water turbine is increased.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a vertical rotary impeller type ocean tidal current energy power generation device which can not be influenced by the direction of tidal current and can realize power generation under the tidal current in any direction; when the tidal current is weak, as long as the fluctuation of waves exists, the impeller can still be driven to rotate under the action of the fluctuating waves so as to maintain the power generation state, and the energy utilization rate is improved; when the power generation device is used in series superposition, the power generation device can be used for generating power in ocean current directions at different depths, and has strong environment adaptability; the sealing device has the characteristics of simple structure, easiness in guaranteeing the sealing performance, low maintenance frequency, long service life and low use cost.

In order to achieve the purpose, the invention adopts the following technical scheme: a vertical rotary impeller type ocean tidal current energy power generation device comprises a rotary impeller cylinder, rotary impeller blades, a stator central shaft, a stator coil, a rotor permanent magnet, a lower planetary gear train, an upper planetary gear train, a lower sealing cover plate and an upper sealing cover plate; the rotary impeller cylinder body adopts a cylindrical structure; the impeller blades are S-shaped helical blades, the number of the impeller blades is a plurality, and the impeller blades are uniformly distributed along the circumferential direction of the outer surface of the impeller cylinder; the stator central shaft adopts a hollow shaft structure, and the rotary impeller cylinder is coaxially sleeved outside the stator central shaft; the lower sealing cover plate is coaxially and fixedly arranged at the bottom end of the central shaft of the stator, and a sealing ring is arranged at the joint between the lower sealing cover plate and the rotary impeller cylinder; the upper sealing cover plate is coaxially and fixedly arranged at the top end of the stator central shaft, and a sealing ring is arranged at the joint between the upper sealing cover plate and the rotary impeller cylinder; the lower planetary gear train is arranged between the stator central shaft adjacent to the lower sealing cover plate and the rotary impeller cylinder; the upper planetary gear train is arranged between the stator central shaft adjacent to the upper sealing cover plate and the rotary impeller cylinder; the stator coils are distributed in the circumferential direction along the outer surface of the central shaft of the stator, and the stator coils in the same plane form a stator coil group; the number of the stator coil groups is a plurality, and the stator coil groups are distributed at equal intervals along the axial direction of the central shaft of the stator; a lead of the stator coil is led out through a central hole of a central shaft of the stator and is connected into an external transformer substation; spraying waterproof and antirust glue on the surface of the stator coil; the rotor permanent magnets are uniformly distributed along the circumferential direction of the inner surface of the rotary impeller cylinder, and the rotor permanent magnets in the same plane form a rotor permanent magnet group; the number of the rotor permanent magnet groups is a plurality, the rotor permanent magnet groups are distributed at equal intervals along the axial direction of the rotary impeller cylinder, and the rotor permanent magnet groups and the stator coil groups are alternately distributed in the axial direction.

The lower planetary gear train and the upper planetary gear train have the same structure and respectively comprise a sun gear, a planet gear and an outer gear ring, and the planet gear is simultaneously meshed with the sun gear and the outer gear ring; the sun gear is coaxially sleeved on the stator central shaft through a bearing; the outer gear ring is coaxially and fixedly sleeved on the inner surface of the rotary impeller cylinder; the number of planet wheels of the lower planetary gear train is a plurality, and the planet wheels are uniformly distributed along the circumferential direction and are arranged on the lower sealing cover plate; a sealing support bearing is arranged between the outer gear ring of the lower planetary gear train and the lower sealing cover plate; the number of planet wheels of the upper planet wheel train is a plurality, and the planet wheels are uniformly distributed along the circumferential direction and are arranged on the upper sealing cover plate; and a sealing support bearing is arranged between the outer gear ring of the upper planetary gear train and the upper sealing cover plate.

The invention has the beneficial effects that:

the vertical rotary impeller type ocean tidal current energy power generation device can not be influenced by the direction of tidal current and can generate power under the tidal current in any direction; when the tidal current is weak, as long as the fluctuation of waves exists, the impeller can still be driven to rotate under the action of the fluctuating waves so as to maintain the power generation state, and the energy utilization rate is improved; when the power generation device is used in series superposition, the power generation device can be used for generating power in ocean current directions at different depths, and has strong environment adaptability; the sealing device has the characteristics of simple structure, easiness in guaranteeing the sealing performance, low maintenance frequency, long service life and low use cost.

Drawings

Fig. 1 is a schematic structural view (front view) of a vertical rotary impeller type ocean tidal current energy power generation device of the present invention;

fig. 2 is a schematic structural view (cross-sectional view) of a vertical rotary impeller type ocean tidal current energy power generation device according to the present invention;

fig. 3 is a schematic structural diagram (top view) of a vertical rotary impeller type ocean tidal current energy power generation device of the present invention;

FIG. 4 is a schematic structural diagram of the up/down planetary gear train of the present invention;

FIG. 5 is a schematic view of a stator coil assembly according to the present invention;

in the figure, 1-impeller cylinder, 2-impeller blade, 3-stator central shaft, 4-stator coil, 5-rotor permanent magnet, 6-lower planetary gear train, 7-upper planetary gear train, 8-lower sealing cover plate, 9-upper sealing cover plate, 10-sun gear, 11-planet gear, 12-external gear ring.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 to 5, a vertical rotary impeller type ocean tidal current energy power generation device comprises a rotary impeller cylinder 1, rotary impeller blades 2, a stator central shaft 3, a stator coil 4, a rotor permanent magnet 5, a lower planetary gear train 6, an upper planetary gear train 7, a lower sealing cover plate 8 and an upper sealing cover plate 9; the rotary impeller cylinder 1 adopts a cylindrical structure; the rotary impeller blades 2 are S-shaped helical blades, the number of the rotary impeller blades 2 is six, and the six rotary impeller blades 2 are uniformly distributed along the circumferential direction of the outer surface of the rotary impeller cylinder 1; the stator central shaft 3 adopts a hollow shaft structure, and the rotary impeller cylinder 1 is coaxially sleeved outside the stator central shaft 3; the lower sealing cover plate 8 is coaxially and fixedly arranged at the bottom end of the stator central shaft 3, and a sealing ring is arranged at the joint between the lower sealing cover plate 8 and the rotary impeller cylinder 1; the upper sealing cover plate 9 is coaxially and fixedly arranged at the top end of the stator central shaft 3, and a sealing ring is arranged at the joint between the upper sealing cover plate 9 and the rotary impeller cylinder 1; the lower planetary gear train 6 is arranged between the stator central shaft 3 and the rotary impeller cylinder 1 which are adjacent to the lower sealing cover plate 8; the upper planetary gear train 7 is arranged between the stator central shaft 3 and the rotary impeller cylinder 1 which are adjacent to the upper sealing cover plate 9; the number of the stator coils 4 is a plurality, the stator coils 4 are uniformly distributed along the circumferential direction of the outer surface of the stator central shaft 3, and the stator coils 4 in the same plane form a stator coil group; the number of the stator coil groups is a plurality, and the stator coil groups are distributed at equal intervals along the axial direction of the stator central shaft 3; the conducting wire of the stator coil 4 is led out through the central hole of the stator central shaft 3 and is connected into an external transformer substation; waterproof and antirust glue is sprayed on the surface of the stator coil 4; the rotor permanent magnets 5 are distributed in a plurality of numbers, the rotor permanent magnets 5 are uniformly distributed along the circumferential direction of the inner surface of the rotary impeller cylinder 1, and the rotor permanent magnets 5 in the same plane form a rotor permanent magnet group; the number of the rotor permanent magnet groups is a plurality, the rotor permanent magnet groups are distributed at equal intervals along the axial direction of the rotary impeller cylinder 1, and the rotor permanent magnet groups and the stator coil groups are alternately distributed in the axial direction.

The lower planetary gear train 6 and the upper planetary gear train 7 have the same structure and respectively comprise a sun gear 10, a planet gear 11 and an outer gear ring 12, and the planet gear 11 is simultaneously meshed with the sun gear 10 and the outer gear ring 12; the sun gear 10 is coaxially sleeved on the stator central shaft 3 through a bearing; the outer gear ring 12 is coaxially and fixedly sleeved on the inner surface of the rotary impeller cylinder 1; the number of the planet wheels 11 of the lower planetary gear train 6 is a plurality, and the planet wheels 11 of the lower planetary gear train 6 are uniformly distributed along the circumferential direction, and are arranged on the lower sealing cover plate 8; a sealing support bearing is arranged between the outer gear ring 12 of the lower planetary gear train 6 and the lower sealing cover plate 8; the number of the planet gears 11 of the upper planet gear train 7 is a plurality, and the planet gears 11 of the upper planet gear train 7 are uniformly distributed along the circumferential direction, and are arranged on the upper sealing cover plate 9; and a sealing support bearing is arranged between the outer gear ring 12 of the upper planetary gear train 7 and the upper sealing cover plate 9.

When the vertical rotary impeller type ocean tide energy power generation device is applied in the ocean, as long as ocean tide passes through the rotary impeller blades 2, the rotary impeller cylinder 1, the rotor permanent magnet 5 and the outer gear ring 12 can be driven to synchronously rotate, and the magnetic induction lines of the rotary rotor permanent magnet 5 can be continuously cut by the stator coils 4, so that induced current is continuously generated, and continuous power generation is realized. Meanwhile, the rotating outer gear ring 12 drives the planet wheel 11 and the sun wheel 10 to rotate in sequence, so that the radial support of the rotary impeller cylinder 1 is realized, and the stable rotation of the rotary impeller cylinder 1 is ensured.

In addition, as the rotary impeller blades 2 adopt S-shaped helical blades, when the tidal current is weak, the fluctuating waves can be used for continuously driving the rotary impeller cylinder 1 to rotate, namely the fluctuating waves can still continuously drive the rotary impeller blades 2 to rotate through the component force in the horizontal direction, the power generation process is not interrupted when the tidal current is weak, and the energy utilization rate is further improved.

The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.