CN105545574A - Spiral blade type low-water-head hydraulic electric generator set - Google Patents
Spiral blade type low-water-head hydraulic electric generator set Download PDFInfo
- Publication number
- CN105545574A CN105545574A CN201610126307.5A CN201610126307A CN105545574A CN 105545574 A CN105545574 A CN 105545574A CN 201610126307 A CN201610126307 A CN 201610126307A CN 105545574 A CN105545574 A CN 105545574A
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- CN
- China
- Prior art keywords
- bearing
- sleeve
- helical blade
- generator set
- type low
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/12—Blades; Blade-carrying rotors
- F03B3/121—Blades, their form or construction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention provides a spiral blade type low-water-head hydraulic electric generator set which comprises spiral blades, a spiral shaft, an electric generator, a support body and a sleeve. The spiral shaft is connected with the electric generator through a coupler. The two ends of the spiral shaft are fixed to a bearing A and a bearing B respectively. The bearing A and the bearing B are fixed to the two axial ends of the support body. The arc-shaped sleeve opened upwards is fixed to the support body. The spiral shaft is arranged in the sleeve. The spiral blades are distributed on the spiral shaft uniformly. Gaps delta are reserved between the spiral blades and the sleeve. The two axial ends of the support body are fixed to a river bed at a certain angle theta through concrete. The horizontal distance from the bearing B to the sleeve is L1. The distance from the center of the bearing B to the support body is R. L1 is larger than or equal to R tg theta.
Description
Technical field
The present invention relates to hydroelectric generator, refer more particularly to a kind of helical blade type low-head hydraulic generator set.
Background technique
Hydroelectric power utilizes water can carry out the technology generated electricity, and is one of renewable energy sources.At present for the river generation technology comparative maturity of high head, large discharge, mostly be Francis formula or Kaplan formula runner.But low head power generation technology generally adopts axial flow or scaled bulb tubular runner, must possess certain drop and totally-enclosed, this runner will be submerged in the head fall at least needing 3m ~ 5m in river completely, is generally still applied to the exploitation in larger river.This technology can not make full use of small-scale water resource (as channel, streams, sewage treatment works etc.), also need larger engineering construction investment simultaneously, and device is installed, dismounting is convenient not, therefore for the river generation technology compared with low water head, a lot of developable potentiality are still had.Latter stage in 20th century, traditional fossil energy increasingly shortage, pollution of atmosphere and climatic change all an urgent demand renewable energy sources is developed.
The river generation technology comparative maturity of current high head, large discharge, but low head power generation technology generally adopts axial flow or scaled bulb tubular runner, they must possess certain drop and totally-enclosed, this runner will be submerged in the head fall at least needing 3m ~ 5m in river completely, is generally still applied to the exploitation in larger river.This technology can not make full use of small-scale water resource (as channel, streams, sewage treatment works etc.), also need larger engineering construction investment simultaneously, and device is installed, dismounting is convenient not, therefore for the river generation technology compared with low water head, a lot of developable potentiality are still had.
Compared to traditional small-sized water turbine, helical blade type turbine has significant advantage.It has wider efficient district, though laying angle close to 0 time also can keep efficient, blade type turbine can also safety by fish, can not damage ecotope; In addition, its civil engineering cost is low, convenient for installation and maintenance.
The present invention is under the streamflow regime of solution low water head, the problem that generates electricity and the lower problem of generating efficiency can not be continued, by the layout of the design that combines helical blade type low-head hydraulic generator set and mounting point thereof, thus realize when low current, realize continuing generating.
Summary of the invention
The present invention is under the streamflow regime of solution low water head, the problem that generates electricity and the lower problem of generating efficiency can not be continued, by the layout of the design that combines helical blade type low-head hydraulic generator set and mounting point thereof, thus realize when low current, realize continuing generating.
The present invention is achieved through the following technical solutions:
A kind of helical blade type low-head hydraulic generator set, comprises helical blade, screw axis, generator, stake body and sleeve composition; Described screw axis is connected with generator by coupling; Described screw axis two ends are separately fixed on bearing A and bearing B, and described bearing A and bearing B is fixed on the axial two ends of stake body; Described stake body is fixed with the circular arc sleeve of upward opening; Described screw axis is placed in described sleeve; Described helical blade is distributed on screw axis; Gap delta between described helical blade and sleeve; The axial two ends of described stake body by concrete at a certain angle θ be fixed in the river course with certain drop; Described bearing B is L apart from the horizontal equivalent between sleeve
1, bearing B center and stake body distance are R, and L
1>=Rtg θ.
Further, described angle θ is 5 ° ~ 30 °.
Further, gap delta gets (0.05%-0.1%) D
e, wherein De is the external diameter of helical blade.
Further, described sleeve is cross section 1/2 ~ 2/3 circle.
Further, described helical blade is single-screw blade, double helix blade or many helical blades.
Beneficial effect:
1. structure of the present invention is simple, and easy installation and removal; This generator set utilizes the Spielpassung of helical blade and stake body that the energy of current is fully used, even the current of low water head also can be used for continuing generating, the little water resource of China enriches, and the present invention has wide market prospects and promotional value.
2. cross section (1/2-2/3) symmetry opening got by circular arc type sleeve: under the river of reality, channel environment, current only can flood lower half portion of helical turbine by helical blade type generator set, consider not need sleeve to make closed from the angle of saving material.
3.L
1>=Rtg θ ensures that sleeve water inlet and upper bearing (metal) B have suitable axial distance, makes current can not flood upper bearing (metal) B from when flowing through between the two, thus guarantees that generator is in safe handling state.
4. under specific head fall (h) environment, the length L of helical turbine
1for h/sin θ, established angle is excessive, then L
1less, current also can remain comparatively multi-energy by rear, and generating efficiency is lower, and established angle is too small, then L
1comparatively large, can cost be increased, thus in order to improve generating efficiency and reduce cost, select established angle θ (5 °-30 °).
Accompanying drawing explanation
Fig. 1 is plan view of the present invention and schematic top plan view;
Fig. 2 is that the present invention is along the schematic diagram carrying out flow path direction layout;
Reference character:
1-helical blade; 2-screw axis; 3-generator; 4-stake body; 5-bearing A; 6-bearing B; 7-sleeve; 8-is intake direction; 9-water outlet direction.
Embodiment
In order to clearer explanation technological scheme of the present invention, illustrate below in conjunction with accompanying drawing:
As illustrated in fig. 1 and 2, helical blade type low-head hydraulic generator set of the present invention, comprises helical blade 1, screw axis 2, generator 3, stake body 4 and sleeve 7 and forms; Helical blade 1 is double helix blade, and its external diameter is 1000mm, and described sleeve 7 is cross section 1/2 circle; Under the river of reality, channel environment, current only can flood lower half portion of helical turbine by helical blade type generator set, therefore do not need sleeve to make closed;
Described screw axis 2 is connected with generator 3 by coupling; Described screw axis 2 two ends are separately fixed on bearing A5 and bearing B6, and described bearing A5 and bearing B6 is fixed on the axial two ends of stake body 4; Described stake body 4 is fixed with the circular arc sleeve 7 of upward opening; Described screw axis 2 is placed in described sleeve 7; Described helical blade 1 is distributed on screw axis 2; Have gap delta between described helical blade 1 and sleeve 7, between sleeve 7 internal diameter and helical blade 1 external diameter, gap delta is 1mm; This device established angle θ is 20 °, head fall 2m, L
1length is 1.4m; Current enter circular arc type sleeve 7 from water inlet direction 8, and driven rotary axle 2 rotates thus generates electricity, and then flows out from water outlet direction 9.
The invention discloses a kind of helical blade type low-head hydraulic generator set, form primarily of helical blade, running shaft, generator and stake body.Helical blade can be single-screw blade, double helix blade or many helical blades; Stake body bearings at both ends makes running shaft unsettled together with helical blade, and with nonocclusive circular arc type sleeve, open near blade outer end nearly (1/2-1/3) circular arc symmetry, between sleeve diameter and helical blade external diameter, gap delta is (0.05%-0.1%) De.The present invention arranges along carrying out flow path direction, and rotating shaft and horizontal plane angle θ are (5 ° ~ 30 °), and the energy drives helical blade and the rotating shaft that make full use of incoming flow together rotate, thus drive axle head electrical power generators.This generator unit structure is simple, and generating efficiency is high, and financial cost is low, can be widely used in the occasions such as the streams of low water head, channel.
Working procedure: current enter screw blade 1, screw blade 1 is under the drive of current, and drive screw axis 2 to rotate, screw axis 2 is rotated by coupling drive electrical generators 3 axle, thus achieve changes mechanical energy to be electric energy, to realize the work of spiral generator.
Described embodiment is preferred embodiment of the present invention; but the present invention is not limited to above-mentioned mode of execution; when not deviating from flesh and blood of the present invention, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection scope of the present invention.
Claims (5)
1. a helical blade type low-head hydraulic generator set, is characterized in that, comprises helical blade (1), screw axis (2), generator (3), stake body (4) and sleeve (7) composition; Described screw axis (2) is connected with generator (3) by coupling; Described screw axis (2) two ends are separately fixed on bearing A (5) and bearing B (6), and described bearing A (5) and bearing B (6) are fixed on stake body (4) axial two ends; Described stake body (4) is fixed with the circular arc sleeve (7) of upward opening; Described screw axis (2) is placed in described sleeve (7); Described helical blade (1) is distributed on screw axis (2); Gap delta is had between described helical blade (1) and sleeve (7); Described stake body (4) axial two ends by concrete at a certain angle θ be fixed in the river course with certain drop; Described bearing B (6) is L apart from the horizontal equivalent between sleeve (7)
1, and bearing B (6) center and stake body (4) distance are R, and L
1>=Rtg θ.
2. helical blade type low-head hydraulic generator set according to claim 1, is characterized in that, described angle θ is 5 ° ~ 30 °.
3. helical blade type low-head hydraulic generator set according to claim 1, is characterized in that, gap delta is got (0.05%-0.1%) D
e, wherein D
efor the external diameter of helical blade (1).
4. helical blade type low-head hydraulic generator set according to claim 1, is characterized in that, described sleeve (7) cross section is 1/2 ~ 2/3 circle.
5. the helical blade type low-head hydraulic generator set according to any one of Claims 1-4, is characterized in that, described helical blade (1) is single-screw blade, double helix blade or many helical blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126307.5A CN105545574A (en) | 2016-03-04 | 2016-03-04 | Spiral blade type low-water-head hydraulic electric generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610126307.5A CN105545574A (en) | 2016-03-04 | 2016-03-04 | Spiral blade type low-water-head hydraulic electric generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105545574A true CN105545574A (en) | 2016-05-04 |
Family
ID=55825031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610126307.5A Pending CN105545574A (en) | 2016-03-04 | 2016-03-04 | Spiral blade type low-water-head hydraulic electric generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545574A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089552A (en) * | 2016-08-22 | 2016-11-09 | 重庆齿轮箱有限责任公司 | A kind of hydroelectric installation |
| CN106544985A (en) * | 2016-11-03 | 2017-03-29 | 浙江海洋大学 | High intensity ocean reclamation dam structure |
| CN106560558A (en) * | 2016-11-07 | 2017-04-12 | 浙江海洋大学 | Reclamation structure for mudflat seeweed cultivation |
| CN106592520A (en) * | 2016-11-07 | 2017-04-26 | 浙江海洋大学 | Mud flat garden making reclamation structure |
| CN106592518A (en) * | 2016-11-03 | 2017-04-26 | 浙江海洋大学 | Mudflat aquaculture reclamation dam structure |
| CN106592521A (en) * | 2016-11-07 | 2017-04-26 | 浙江海洋大学 | Intertidal zone fish culture inning structure |
| CN108869154A (en) * | 2018-07-27 | 2018-11-23 | 顾亚梅 | A kind of ultra low head power generation unit |
Citations (6)
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|---|---|---|---|---|
| KR100937492B1 (en) * | 2009-06-18 | 2010-01-20 | (주)큰나무 | Screw type generation apparatus having a waterproof function |
| CN201679614U (en) * | 2010-01-13 | 2010-12-22 | 赵巍 | Hydraulic worm screw generator |
| CN201730722U (en) * | 2010-01-13 | 2011-02-02 | 赵巍 | Hydroelectric worm generator |
| KR20120020800A (en) * | 2010-08-31 | 2012-03-08 | (주)유수랜드 | Edge rim screw generator |
| JP2013174207A (en) * | 2012-02-27 | 2013-09-05 | Ntn Corp | Spiral hydraulic turbine and hydraulic power generation device |
| CN205503346U (en) * | 2016-03-04 | 2016-08-24 | 江苏大学 | Helical blade formula low water head hydroelectric generator group |
-
2016
- 2016-03-04 CN CN201610126307.5A patent/CN105545574A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100937492B1 (en) * | 2009-06-18 | 2010-01-20 | (주)큰나무 | Screw type generation apparatus having a waterproof function |
| CN201679614U (en) * | 2010-01-13 | 2010-12-22 | 赵巍 | Hydraulic worm screw generator |
| CN201730722U (en) * | 2010-01-13 | 2011-02-02 | 赵巍 | Hydroelectric worm generator |
| KR20120020800A (en) * | 2010-08-31 | 2012-03-08 | (주)유수랜드 | Edge rim screw generator |
| JP2013174207A (en) * | 2012-02-27 | 2013-09-05 | Ntn Corp | Spiral hydraulic turbine and hydraulic power generation device |
| CN205503346U (en) * | 2016-03-04 | 2016-08-24 | 江苏大学 | Helical blade formula low water head hydroelectric generator group |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089552A (en) * | 2016-08-22 | 2016-11-09 | 重庆齿轮箱有限责任公司 | A kind of hydroelectric installation |
| CN106544985A (en) * | 2016-11-03 | 2017-03-29 | 浙江海洋大学 | High intensity ocean reclamation dam structure |
| CN106592518A (en) * | 2016-11-03 | 2017-04-26 | 浙江海洋大学 | Mudflat aquaculture reclamation dam structure |
| CN106560558A (en) * | 2016-11-07 | 2017-04-12 | 浙江海洋大学 | Reclamation structure for mudflat seeweed cultivation |
| CN106592520A (en) * | 2016-11-07 | 2017-04-26 | 浙江海洋大学 | Mud flat garden making reclamation structure |
| CN106592521A (en) * | 2016-11-07 | 2017-04-26 | 浙江海洋大学 | Intertidal zone fish culture inning structure |
| CN108869154A (en) * | 2018-07-27 | 2018-11-23 | 顾亚梅 | A kind of ultra low head power generation unit |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |
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| RJ01 | Rejection of invention patent application after publication |