CN202280567U - Variable-pitch horizontal-axis tidal-current power generator set with nested type fairwater sleeve - Google Patents

Abstract

Translated fromChinese

本实用新型公开了一种嵌套式导流罩变桨水平轴潮流发电机组，属于海洋可再生能源开发领域。由外导流罩、导流罩支撑、内导流罩、主轴、主轴轴承、轮毂、叶片、变桨轴承、变桨齿轮、变桨齿条、变桨电机、蓄电池、发电机、齿轮箱和密封组成。外导流罩和内导流罩一起构成嵌套式导流罩，叶片根部通过变桨电机实现叶片变桨。本实用新型的嵌套式导流罩变桨水平轴潮流发电机组，通过嵌套式导流罩大大提高了叶片附近的潮流流速，变桨机构使水平轴水轮机适合往复潮流，效率显著高，且具有各种流速下的自启动能力；整机结构简洁，电能输出稳定、清洁无污染。

The utility model discloses a nested wind deflector variable-pitch horizontal axis tidal current generator set, which belongs to the field of marine renewable energy development. It consists of outer shroud, shroud support, inner shroud, main shaft, main shaft bearing, hub, blade, pitch bearing, pitch gear, pitch rack, pitch motor, battery, generator, gearbox and Hermetic composition. The outer shroud and the inner shroud together form a nested shroud, and the pitch of the blade is realized by the pitch motor at the root of the blade. The nested windshield variable pitch horizontal axis tidal current generating set of the utility model greatly improves the tidal flow velocity near the blades through the nested shroud, and the pitch changing mechanism makes the horizontal axis water turbine suitable for the reciprocating tidal current, and the efficiency is significantly high, and It has self-starting ability at various flow rates; the whole machine has a simple structure, stable power output, clean and pollution-free.

Description

The nesting type air guide sleeve becomes oar horizontal axis tidal power generating unit

Technical field

The utility model belongs to the regenerable marine energy development field, relates to the nesting type air guide sleeve and becomes oar horizontal axis tidal power generating unit.

Background technique

The energy and environment are the significant problems that human kind sustainable development faces, and the renewable energy sources of development cleaning is known together by countries in the world.The marine energy resources reserve is very abundant in the world wide, and wherein the trend ability is regular strong, and direction of tide is stable and have typical past renaturation characteristics, and development prospect is very wide.

Generating is the principal mode that trend can be utilized, and the core that trend can be generated electricity is the water turbine that absorbs trend.Horizontal axis water turbine single-machine capacity is big, is fit to various tidal current speed, is described as " underwater windmill ".

A water turbine of improving the standard is its core technology for the energy capture efficient of reversing current.To the past renaturation characteristics of trend, adopting bilobed wheel hydraulic turbine generator group is one of method that addresses this problem, but bilobed wheel has increased the cost of water turbine undoubtedly, and if adapt to various incoming flows through becoming oar, cost can be higher.For energy capture efficient, adopting the cumulative air guide sleeve to improve the tidal current speed that flows through water turbine is one of effective way that improves water turbine energy capture efficient.

To sum up, a water turbine of improving the standard is to reduce the core that trend can development cost for the energy capture efficient of reversing current, also is the key that regenerable marine energy utilizes.

The model utility content

The utility model, proposes the nesting type air guide sleeve and becomes oar horizontal axis tidal power generating unit for the low problem of the complex energy capture rate of reversing current to horizontal axis water turbine in the present regenerable marine energy exploitation.

The nesting type air guide sleeve becomes oar horizontal axis tidal power generating unit, comprises outer air guide sleeve, air guide sleeve support, interior air guide sleeve, main shaft, main shaft bearing, wheel hub, blade, pitch variable bearings, change oar gear, becomes the oar tooth bar, becomes oar motor, storage battery, generator, gear-box, seal ring.

Described nesting type air guide sleeve becomes oar horizontal axis tidal power generating unit; Root of blade is fixed on the wheel hub through pitch variable bearings; Wheel hub is sleeved on the main shaft, and in main shaft is bearing in through main shaft bearing on the air guide sleeve, interior air guide sleeve is through the air guide sleeve support fixation outside on the air guide sleeve; Become the change oar gear engagement of oar tooth bar and root of blade, through becoming the oar motor driving; The input shaft of one end connection gear case of main shaft, gearbox output shaft connect generator, between generator and the storage battery, connect through cable between storage battery and the change oar motor; Seal ring is installed between wheel hub and the interior air guide sleeve.

Described outer air guide sleeve is that two horn mouths connect through changeover portion, and bell-mouthed shape line is one or more in twisted-pair cable shape, circular arc, the streamline; Interior air guide sleeve is the hemisphere of two symmetries, back-to-back installation; Air guide sleeve supports number Duos one than the blade number, and along circumferentially being uniformly distributed with, the cross section that air guide sleeve supports is circle, ellipse, rhombus, NACA aerofoil profile or streamlined.

Described blade, number are 3-6, are twisted blade, and blade tip is installed tip vane, and the tip of blade and middle part sectional shape are NACA aerofoil profile or streamlined, and root of blade is cylindrical.

Described storage battery adopts zinc bromine accumulation energy battery or all-vanadium liquid flow energy storage battery.

During work, trend under the conflux effect of interior air guide sleeve and outer air guide sleeve, near raising flow velocity in the time of the blade of flowing through; The kinetic energy driven vane rotation that trend flows according to the flow velocity of trend, becomes the oar driven by motor and becomes the translation of oar tooth bar, and change oar rack drives becomes the oar gear makes vane propeller-changing, thereby makes water turbine reach maximum energy capture efficient; Blade drives wheel hub and main shaft rotates together, and main shaft drives generator for electricity generation through gear-box, and the electric energy that generator sent is through accumulators store, and the fraction electric energy of storage battery is supplied with and become the oar motor, and all the other electric energy are transported to electrical network through cable.When direction of tide changed, the same change oar motor that adopts made vane propeller-changing, realizes the energy capture of water turbine to reversing current.

The beneficial effect of the utility model is:

1, the nesting type air guide sleeve structure that adopts outer air guide sleeve and interior air guide sleeve to make up has improved the cumulative effect of air guide sleeve greatly, improve the tidal current speed of the blade of flowing through, so water turbine integral energy capture rate significantly improves;

2, blade pitch device can change attack angle of blade when the low speed trend, increases the self-startup ability of horizontal axis water turbine to the low speed trend, and realizes the optimum capacity capture rate of horizontal axis water turbine to reversing current through the change oar under different direction, the various flow velocity; 3 because root of blade is less for horizontal axis water turbine energy capture efficient and power influences, and therefore interior air guide sleeve can not reduce the energy capture efficient and the power of horizontal axis water turbine.Air guide sleeve is that vane propeller-changing mechanism, driving mechanism, generating and energy storage provide enough confined spaces in 4.5 since tidal current speed with tidal fluctuations and receive natural environment influence, trend can generate electricity unstable, and need change Ac into before being incorporated into the power networks, and carries out the electric power storage energy storage through zinc bromine accumulation energy battery or all-vanadium liquid flow energy storage battery, and electric energy is stablized, and conveniently is incorporated into the power networks.

The utility model is fit to reversing current, and single-machine capacity is big, efficient is high, and has the self-startup ability under the various flow velocitys, simple appearance, working stability, stable, the cleanliness without any pollution of electric energy output.

Description of drawings

Fig. 1 is that the nesting type air guide sleeve of the utility model becomes oar horizontal axis tidal power generating unit structural representation.

Fig. 2 is the sectional view of Fig. 1.

Among the figure: 1 outer air guide sleeve; 2 air guide sleeves support; Air guide sleeve in 3; 4 main shafts; 5 main shaft bearings; 6 wheel hubs; 7 blades; 8 pitch variable bearings; 9 become the oar gear; 10 become the oar tooth bar; 11 become the oar motor; 12 storage batteries; 13 generators; 14 gear-boxes; 15 seal rings.

Embodiment

As shown in the figure, the nesting type air guide sleeve of the utility model become oar horizontal axis tidal power generating unit by outerair guide sleeve 1, airguide sleeve support 2, interiorair guide sleeve 3,main shaft 4, main shaft bearing 5,wheel hub 6,blade 7, pitch variable bearings 8, becomeoar gear 9, becomeoar tooth bar 10, becomeoar motor 11,storage battery 12,generator 13, gear-box 14,seal ring 15 form.

(1) according to marine site reversing current flow velocity, calculated level axle water turbine energy capture efficient such as tip speed ratio, aerofoil profile hydraulic performance parameter are with the tip-speed ratio Changing Pattern, anddefinite blade 7 optimum embedding angle degree.

(2) according to tidal current speed excursion and the definite performance characteristic that becomes the oar motor of reciprocal rule;

(3) become oar horizontal axis tidal power generating unit power requirements according to the nesting type air guide sleeve, confirm the parameter of each component, arrangement.

Claims (4)

Translated fromChinese

1.一种嵌套式导流罩变桨水平轴潮流发电机组，包括外导流罩、导流罩支撑、内导流罩、主轴、主轴轴承、轮毂、叶片、变桨轴承、变桨齿轮、变桨齿条、变桨电机、蓄电池、发电机、齿轮箱、密封圈；1. A nested dome variable pitch horizontal axis tidal current generator set, including an outer dome, a dome support, an inner dome, a main shaft, a main shaft bearing, a hub, blades, a pitch bearing, and a pitch gear , Pitch rack, pitch motor, battery, generator, gearbox, sealing ring;叶片根部通过变桨轴承固定在轮毂上，轮毂套装在主轴上，主轴通过主轴轴承支承在内导流罩上，内导流罩通过导流罩支撑固定在外导流罩上；变桨齿条与叶片根部的变桨齿轮啮合，通过变桨电机驱动；主轴的一端连接齿轮箱的输入轴，齿轮箱输出轴连接发电机，发电机和蓄电池之间、蓄电池和变桨电机之间通过电缆连接；密封圈安装在轮毂与内导流罩之间；The root of the blade is fixed on the hub through the pitch bearing, the hub is set on the main shaft, the main shaft is supported on the inner shroud through the main shaft bearing, and the inner shroud is fixed on the outer shroud through the support of the shroud; the pitch rack and The pitch gear at the root of the blade meshes and is driven by the pitch motor; one end of the main shaft is connected to the input shaft of the gearbox, and the output shaft of the gearbox is connected to the generator, and the generator and the battery, and the battery and the pitch motor are connected by cables; The sealing ring is installed between the hub and the inner shroud;所述的外导流罩为两个喇叭口通过过渡段连接；内导流罩为两个对称的半球体，背对背安装，导流罩支撑个数比叶片个数多一个，沿周向均布；The outer shroud is connected by two bell mouths through a transition section; the inner shroud is two symmetrical hemispheres, installed back to back, the number of shroud supports is one more than the number of blades, and they are evenly distributed along the circumferential direction;所述的叶片，个数为3-6个，为扭叶片，叶片尖部安装叶尖小翼，叶片的尖部和中部截面形状为NACA翼型或流线型，叶片根部为圆柱形。The number of said blades is 3-6, and they are twisted blades. The tip of the blade is equipped with a tip winglet. The cross-sectional shape of the tip and middle of the blade is NACA airfoil or streamlined, and the root of the blade is cylindrical.2.根据权利要求1所述的嵌套式导流罩变桨水平轴潮流发电机组，其特征在于，所述的外导流罩喇叭口的形线为双扭线形、圆弧形、流线形中的一种或多种。2. The nested wind deflector variable pitch horizontal axis tidal current generating set according to claim 1, characterized in that, the shape of the bell mouth of the outer wind deflector is twisted, arc-shaped, and streamlined. one or more of the shapes.3.根据权利要求1所述的嵌套式导流罩变桨水平轴潮流发电机组，其特征在于，所述的导流罩支撑的截面为圆形、椭圆形、菱形、NACA翼型或流线型。3. The nested spinner variable pitch horizontal axis tidal current generating set according to claim 1, characterized in that, the cross section of the spinner support is circular, oval, rhombus, NACA airfoil or streamlined .4.根据权利要求1、2或3所述的嵌套式导流罩变桨水平轴潮流发电机组，其特征在于，所述的蓄电池采用锌溴储能电池或全钒液流储能电池。 4. The nested shroud variable pitch horizontal axis tidal current generator set according to claim 1, 2 or 3, characterized in that the storage battery is a zinc-bromine energy storage battery or an all-vanadium flow energy storage battery. the

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