CN205445885U

CN205445885U - Birotor trend generator

Info

Publication number: CN205445885U
Application number: CN201521064607.2U
Authority: CN
Inventors: 李彬
Original assignee: Tianjin Vocational And Technical Normal University
Current assignee: Tianjin Vocational And Technical Normal University; Tianjin University of Technology
Priority date: 2015-12-16
Filing date: 2015-12-16
Publication date: 2016-08-10
Anticipated expiration: 2025-12-16

Abstract

Birotor trend generator, including energy capture mechanism and base, energy capture mechanism comprises blade dish, direction circular track, blade and rim plate, be equipped with direction circular track on the blade dish, the below of blade dish is equipped with the rim plate, is equipped with 24 blades between blade dish and the rim plate, energy capture mechanism is total two, upper and lower perpendicular the setting, and wherein the blade dish of upper portion energy capture mechanism passes through the bearing housing with the rim plate and is connected with first main shaft, and the blade of the energy capture mechanism of lower part coils and the rim plate passes through the bearing housing and is connected with the second spindle, the base comprises square sealed box, and it is internal that the seal box is all located to gear acceleration rate case, first generator and second generator, the utility model discloses structural design is simple, and the mechanism that need not go off course does not receive water flow direction's influence, uses vertical blade, has reduced the degree of difficulty made blade machining mutually, can effectual promotion capacitation coefficient and trend energy utilization rate, be worth wideling popularize.

Description

Birotor tidal current generator

Technical field

This utility model relates to field of marine renewable energy development, especially a kind of birotor tidal current generator.

Background technology

It is big, toward renaturation, the feature such as pollution-free, renewable that trend has energy-flux density.The core of marine tidal-current energy generating is to absorb the hydraulic turbine of trend.Trunnion axis hydraulic turbine single-machine capacity is big, is described as " underwater windmill ", but it is low for the complex energy capture rate of reversing current.For relative level axle, Performances of Vertical-Axis Tidal Turbine has a following advantage: is primarily due to current and carrys out flow path direction Performances of Vertical-Axis Tidal Turbine be there is no impact, so it is possible not only to give up the design of driftage mechanical system, but also can directly torque be exported by rotating shaft, thus reduce the transmission loss of machinery；Next compares the trunnion axis hydraulic turbine, and the vertical pivot hydraulic turbine needs less fund input and running cost；Finally, Performances of Vertical-Axis Tidal Turbine is less demanding to the depth of water, and control structure is relatively easy.Performances of Vertical-Axis Tidal Turbine is generally stretched to, by one group, the blade moved in a circle in water and around the main shaft being perpendicular to sea and is formed, blade under water impact around main axis, and by spindle drive drive electrical power generators, marine tidal-current energy is converted into electric energy.The different motion mode being had in rotation process according to turbine blade, Performances of Vertical-Axis Tidal Turbine is divided into two types: fixes the drift angle formula vertical pivot hydraulic turbine and becomes the angle of attack formula vertical pivot hydraulic turbine.The blade of the fixing drift angle formula vertical pivot hydraulic turbine self cannot rotate together with being completely fixed with hydraulic turbine support arm, and become the angle of attack formula vertical pivot hydraulic turbine blade can not only around main axis and also can be with certain rule around self axis of rotation.Becoming the angle of attack trend hydraulic turbine and not only also have preferable self-starting performance flow velocity is low when, and capacity usage ratio is higher, but complicated in mechanical structure, life-span are short.

Utility model content

This utility model aims to provide a kind of simple in construction, stability height, the birotor tidal current generator of length in service life.

For achieving the above object, this utility model following technical scheme of offer: birotor tidal current generator, including energy capture mechanism and base, described energy capture mechanism is by fan disk, guide ring rail, blade and wheel disc composition, described fan disk is provided with guide ring rail, the lower section of fan disk is provided with wheel disc, 24 blades it are provided with between fan disk and wheel disc, this blade connects fan disk by blade seat, blade seat is located at the marginal portion of fan disk, the sharf coordinated with blade it is provided with in this blade seat, blade is vertically arranged, blade is divided into upper and lower two parts with sharf for boundary, the area of upper part blade is more than lower part blade, the inner circumferential of blade seat is provided with the block coordinated with blade；Described energy capture mechanism has two, it is vertically arranged up and down, the fan disk of its middle and upper part energy capture mechanism and wheel disc are connected by bearing holder (housing, cover) and the first main shaft, the fan disk of the energy capture mechanism of bottom and wheel disc are connected by bearing holder (housing, cover) and the second main shaft, wherein the first main shaft is located at inside the second main shaft, the two is coaxially disposed, first main shaft and the second main shaft all connect gear speedup case by shaft coupling, gear speedup case is by the first electromotor on the left of the first shaft coupling connection, gear speedup case is by the second electromotor on the left of the second shaft coupling connection, it is equipped with torque speed sensor and rotary angle transmitter on first main shaft and the second main shaft；Described base is made up of square seal case, gear speedup case, the first electromotor and the second electromotor are all located in seal case, being provided with sealing ring between this seal case and the second main shaft, the bottom of seal case is provided with four legs, and the inside of seal case is provided with control system.

As further scheme of the present utility model: the material of described fan disk and guide ring rail is steel.

As further scheme of the present utility model: being connected by bearing between described first main shaft and the second main shaft, this bearing is provided with several.

As further scheme of the present utility model: described torque speed sensor and rotary angle transmitter connection control system.

Compared with prior art, the beneficial effects of the utility model are: this birotor tidal current generator has the advantage that one, the perpendicular straight-vaned structure of energy capture mechanism makes the work side at the hydraulic turbine, maximum by water impact active force, the resistance being subject in inoperative side is minimum, the so hydraulic turbine just high efficiency work of energy, a lot of energy need not be wasted on the resistance overcoming current, add device and inherently have deadweight, rotator inertia also ratio is more uniform, so water wheels function is stably in steady-working state；

Two, Liang Ge energy capture mechanism is vertically arranged up and down, respectively by two concentric shafts, can independent operating, be possible not only to realize the purpose of Electricity Generation, and effectively alleviate the difficult problem that marine tidal-current energy is not enough, substantially increase the utilization rate of marine tidal-current energy；

Three, the stability of understructure is high, service life is long.

The design of this utility model structure is simple, need not Yawing mechanism, do not affected by water (flow) direction, use vertical blade, compare horizontal shaft water turbine and reduce the difficulty to blade mechanism processing and manufacturing, advantageously reduce production cost, can effectively promote the utilization rate of capacitation coefficient and marine tidal-current energy, be worth promoting.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the operation principle schematic diagram one of blade；

Fig. 3 is the operation principle schematic diagram two of blade；

Fig. 4 is the transmission principle sketch of the first main shaft and the second main shaft；

Fig. 5 is the assembling schematic diagram of the first main shaft and the second main shaft；

Fig. 6 is the structural representation of leg.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.

nullRefer to Fig. 1-6，In this utility model embodiment，Birotor tidal current generator，Including energy capture mechanism and base，Described energy capture mechanism is by fan disk 1、Guide ring rail 2、Blade 3 and wheel disc 5 form，Described fan disk 1 is provided with guide ring rail 2，The material of fan disk 1 and guide ring rail 2 is steel，The lower section of fan disk 1 is provided with wheel disc 5，Main Function is to support whole energy capture mechanism，Fan disk 1 is helped to position in the axial direction，24 blades 3 it are provided with between fan disk 1 and wheel disc 5，This blade 3 connects fan disk 1 by blade seat 31，Blade seat 31 is located at the marginal portion of fan disk 1，The sharf 32 coordinated with blade 3 it is provided with in this blade seat 31，Blade 3 is vertically arranged，Blade 3 is divided into upper and lower two parts with sharf 32，The area of upper part blade 3 is more than lower part blade 3，The inner circumferential of blade seat 31 is provided with the block 33 coordinated with blade 3；

nullDescribed energy capture mechanism has two，It is vertically arranged up and down，Fan disk 1 and the wheel disc 5 of its middle and upper part energy capture mechanism are connected by bearing holder (housing, cover) and the first main shaft 4，Fan disk 1 and the wheel disc 5 of the energy capture mechanism of bottom are connected by bearing holder (housing, cover) and the second main shaft 4.1，Wherein the second main shaft 4.1 inside is located at by the first main shaft 4，The two is coaxially disposed，It is connected by bearing between first main shaft 4 with the second main shaft 4.1，First main shaft 4 is all connected gear speedup case 15 by shaft coupling with the second main shaft 4.1，Gear speedup case 15 is by the first electromotor 13.1 on the left of the first shaft coupling 14.1 connection，Gear speedup case 15 is by the second electromotor 13 on the left of the second shaft coupling 14 connection，Rotor rotates stator field in cutting electromotor and produces electric current，Connect on stator and have load，Electric current is transferred out，It is equipped with torque speed sensor 7 and rotary angle transmitter 8 on first main shaft 4 and the second main shaft 4.1，It is able to measure the first main shaft 4 and the moment of torsion of axle and rotating speed，These sensors are by these rotating speeds，Angle data passes to control system 10，Control system 10 is facilitated to make regulation.

Described base is made up of square seal case 11, gear speedup case the 15, first electromotor 13.1 and the second electromotor 13 are all located in seal case 11, it is provided with sealing ring 9 between this seal case 11 and second main shaft 4.1, it is prevented from damaging motor in water enters seal case 11, the bottom of seal case 11 is provided with four legs 12, and the inside of seal case 11 is provided with control system 10.

Operation principle of the present utility model: one, the operation principle of energy capture mechanism: current are when the impact blade 3 of left side, blade 3 stress, blade 3 is divided into two parts centered by blade 3 rotating shaft, sharf 32 upper part area is less than sharf 32 lower part, blade 3 lower part stress is more than upper part, blade 3 part does not has blade seat 31 structure to limit below, will rotate around sharf 32 and open, blade 3 is the least to the resistance of current, blade 3 is transformed into 180 degree at the angle acted between it of current continuously from 0 degree, the thrust of blade 3 is also increased continuously by current from 0 degree, to maximum when of 90 degree, the most gradually to 0；nullWhen current flow to blade 3 from right side when，Two parts up and down that blade 3 is divided into centered by axle are all acted on by current，Centered by axle, lower part blade 3 is more than blade 3 above by the area of water impact，So in the effect that the active force that blade 3 is subject to below is more than blade 3 above，Blade 3 lower face branch rotates along with the direction of current，But owing to blade seat 31 has the reason of block 33，Blade 3 can not rotate，The active force being subject to is passed to blade seat 31 by blade 3，Blade seat 31 is by the active force of blade 3 and transfers the force to the hydraulic turbine，Hydraulic turbine Forced rotation，So blade 3 and the angle of current are from 0 degree to 90 degree，Again from 90 degree to 180 degree，From 180 degree to 90 degree，Work is forwarded to along with the change blade 3 of angle never works，Forward to not work from work again，The repetition said process gone round and begun again，The hydraulic turbine just can not stop to capture energy.So design reaches, in the work side of the hydraulic turbine, maximum by water impact active force, and the resistance being subject in inoperative side is minimum, the just high efficiency work of energy of such hydraulic turbine, need not waste a lot of energy on the resistance overcoming current.Adding device and inherently have deadweight, rotator inertia also ratio is more uniform, so water wheels function is stably in steady-working state.

Two, the You Liangge energy capture mechanism of device upper end, position is distributed vertically, the axle of energy capture mechanism is the first main shaft 4 above, the axle of energy capture mechanism is the second main shaft 4.1 below, it is internal that axle sectional view can be seen that the first main shaft 4 is enclosed within the second main shaft 4.1, and through the second main shaft 4.1, by shaft coupling, mechanical energy passed to gear speedup case 15, mechanical energy is passed to left side generator amature by shaft coupling by gear speedup case 15, rotor rotates stator field in cutting electromotor and produces electric current, connect on stator and have load, electric current is transferred out；Mechanical energy is passed to gear speedup case 15 by shaft coupling by the mechanical energy being converted by the energy capture mechanism of the second main shaft 4.1, gear speedup case 15 passes through shaft coupling, pass to mechanical energy send out right motor rotor, rotor rotates stator field in cutting electromotor and produces electric current, connect on stator and have load, electric current is transferred out.Torque speed sensor 7 and rotary angle transmitter 8 is had respectively on first main shaft 4 and the second main shaft 4.1, it is able to measure the first main shaft 4 and the moment of torsion of axle and rotating speed, these sensors are by these rotating speeds, and angle data passes to control system 10, facilitate control system 10 to make regulation.Second main shaft 4.1 diameter is more than the first main shaft 4 diameter, and first main shaft 4 coaxial with the second main shaft 4.1 centrage, so the first main shaft 4 is enclosed within the second main shaft 4.1 inside by design, it is connected with multiple bearings between first main shaft 4 with the second main shaft 4.1, the purpose connected with bearing is can to play to determine that the first main shaft 4 can rotate with the second main shaft 4.1 with first main shaft 4 that can make again relative to position of the second main shaft 4.1 simultaneously, it is possible to drive the right and left simultaneous firing.The purpose of the design of do so is possible not only to realize Electricity Generation, and effectively alleviates the difficult problem that marine tidal-current energy is not enough, substantially increases the utilization rate of marine tidal-current energy.

Its advantage is that structure design is simple, it is not necessary to Yawing mechanism, is not affected by water (flow) direction, use vertical blade, compare horizontal shaft water turbine and reduce the difficulty to blade mechanism processing and manufacturing, advantageously reduce R&D costs, can effectively promote the utilization rate of capacitation coefficient and marine tidal-current energy.

Whole tidal generating set is fixed on seabed, the most ceaselessly stands the impact of trend, and therefore the design to its base proposes higher requirement.The tidal generating set base of prior art mostly is collar plate shape, and collar plate shape base is fixed in marine rock by rivet.The base of this structure, bottom area is little, poor stability, and service life is short, it is impossible to preferably complete the task of base.And understructure of the present utility model solves the problems such as bottom poor stability, service life is short, efficiency is low.

It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.

In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.

Claims

null1. birotor tidal current generator，Including energy capture mechanism and base，It is characterized in that，Described energy capture mechanism is by fan disk (1)、Guide ring rail (2)、Blade (3) and wheel disc (5) composition，Described fan disk (1) is provided with guide ring rail (2)，The lower section of fan disk (1) is provided with wheel disc (5)，24 blades (3) it are provided with between fan disk (1) and wheel disc (5)，This blade (3) connects fan disk (1) by blade seat (31)，Blade seat (31) is located at the marginal portion of fan disk (1)，The sharf (32) coordinated with blade (3) it is provided with in this blade seat (31)，Blade (3) is vertically arranged，Blade (3) is that boundary is divided into upper and lower two parts with sharf (32)，The area of upper part blade (3) is more than lower part blade (3)，The inner circumferential of blade seat (31) is provided with the block (33) coordinated with blade (3)；nullDescribed energy capture mechanism has two，It is vertically arranged up and down，The fan disk (1) of its middle and upper part energy capture mechanism and wheel disc (5) are connected by bearing holder (housing, cover) and the first main shaft (4)，The fan disk (1) of the energy capture mechanism of bottom and wheel disc (5) are connected by bearing holder (housing, cover) and the second main shaft (4.1)，Wherein the second main shaft (4.1) inside is located at by the first main shaft (4)，The two is coaxially disposed，First main shaft (4) is all connected gear speedup case (15) by shaft coupling with the second main shaft (4.1)，Gear speedup case (15) is by the first electromotor (13.1) on the left of the first shaft coupling (14.1) connection，Gear speedup case (15) is by the second electromotor (13) on the left of the second shaft coupling (14) connection，It is equipped with torque speed sensor (7) and rotary angle transmitter (8) on first main shaft (4) and the second main shaft (4.1)；Described base is made up of square seal case (11), gear speedup case (15), the first electromotor (13.1) and the second electromotor (13) are all located in seal case (11), sealing ring (9) it is provided with between this seal case (11) and the second main shaft (4.1), the bottom of seal case (11) is provided with four legs (12), and the inside of seal case (11) is provided with control system (10).
Birotor tidal current generator the most according to claim 1, it is characterised in that the material of described fan disk (1) and guide ring rail (2) is steel.
Birotor tidal current generator the most according to claim 1, it is characterised in that described first main shaft (4) is connected by bearing between the second main shaft (4.1), and this bearing is provided with several.
Birotor tidal current generator the most according to claim 1, it is characterised in that described torque speed sensor (7) and rotary angle transmitter (8) connection control system (10).