CN1076253A - Water turbine with adjustable outlet of rotary wheel - Google Patents
Water turbine with adjustable outlet of rotary wheel Download PDFInfo
- Publication number
- CN1076253A CN1076253A CN92108047A CN92108047A CN1076253A CN 1076253 A CN1076253 A CN 1076253A CN 92108047 A CN92108047 A CN 92108047A CN 92108047 A CN92108047 A CN 92108047A CN 1076253 A CN1076253 A CN 1076253A
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- CN
- China
- Prior art keywords
- flow
- rotary wheel
- runner
- water
- water turbine
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- Pending
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- 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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- Hydraulic Turbines (AREA)
Abstract
The present invention is a kind of water turbine with adjustable outlet of rotary wheel.Employing is made upper and lower straight-line flow deflecting cone along axle and is controlled and regulate water flow in the runner bucket outlet port.The straight line motion of flow deflecting cone relies on hydraulic system or mechanical adjustment.This Water-Turbine Engine Adaption mechanism novelty, simple, overall dimension is little, cost is low, hydraulic loss is little, efficient is high.Be applicable to mixed-flow, bulb-style, inclined flow turbine.
Description
The present invention is a kind of water turbine with adjustable outlet of rotary wheel, belongs to turbine technology field.
The reaction turbine that uses in the water power plant has several typical series at present: mixed-flow, diagonal flow type, axial flow, tubular.Development along with technology, the performance of these water turbine just is gradually improved, their common ground all is to utilize the water distributor with movable guide vane in the water inlet place control of runner bucket and the water flow of regulating the runner of flowing through, along with water turbine to high head, (refer generally to 200 meters or more high head) maximization direction develops, it is serious and outstanding that the water turbine institute potential problems of this typical structure more show, as the stator serious wear, the regulating system complexity, mechanism is huge, the runner optimum efficiency is not excavated fully, and the unit operation noise is big etc., and these problems have seriously hindered water turbine to high head, the maximization direction develops.
The present invention is exactly the new type hydraulic turbine of design at solving these problems that exist at present a kind of simple in structure, easily manufactured, high comprehensive performance.
The present invention regulates current for finishing at runner bucket outlet port adjusting current by changing the traditional water turbine in runner bucket inlet.Controlling mechanism is regulated the straight line that flow changes flow deflecting cone into by the switch of movable guide vane and is moved the adjusting flow, has promptly cancelled the controlling mechanism that has movable guide vane originally, and settling at the outlet of rotary wheel place one can upper and lower vertically straight-line flow deflecting cone.The catchment one that acts on of turbine water distributor, runner cone, valve of flow deflecting cone, with its motion of operation system control, operation system can be hydraulic regulation, also can be the adjustable diameter and screw adjusting of machinery in small-sized unit.In service, flow deflecting cone rotates with runner.During (during mechanical adjustment with runner rotation) compressor emergency shutdown, flow deflecting cone is on the seat ring that the draft tube inducer has seal ring, and current are stopped, and flow deflecting cone moves up until required flow of water turbine and load during start.
Below in conjunction with accompanying drawing the present invention is further described:
Figure (1) is a structural representation of the present invention, also is one of embodiments of the invention (adopting oil pressure to regulate)
Volute [1], seat ring [2], runner [3], flow deflecting cone [4], servomotor cylinder [5], main shaft [6], piston [7]], high-pressure oil pipe [8], piston tube [9], nut [10], draft tube [11], lubricant receiver [12]
Referring to Fig. 1, the inlet part of water turbine with adjustable outlet of rotary wheel by volute [1], seat ring [2], draft tube [11], form, runner [3] is positioned at seat ring [2] central authorities, runner [3] blade exit place settles flow deflecting cone [4], runner [3] exit edge of blade diameter on the cylndrical surface of same diameter, servomotor cylinder [5] is positioned at flow deflecting cone [4] chamber with bolt after closing with runner [3], main shaft [6], the piston rod [9] that has piston [7] passes the cylindrical hole of servomotor cylinder [5] bottom, be fixed in interference fit in the cylindrical hole in flow deflecting cone [4] tapering, and tighten with nut [10].From the high-pressure oil pipe [8] of lubricant receiver [12] (not drawing on unit top, Fig. 1), one is passed in the B of grease chamber that the piston rod wall passes to servomotor cylinder [5] inner carrier [7] top, and one is passed in the A of grease chamber that the piston rod wall passes to cylinder inner carrier [7] bottom.During shutdown; flow deflecting cone [4] is located on the seat ring of draft tube [11] inducer that has seal ring, diagram complete shut-down position; at this moment; current are stopped fully, during start, and the primer fluid pressing system; A chamber oil pressure is greater than the B chamber; piston [7], piston rod [9] move up, and drive flow deflecting cone and move up, until required flow of water turbine and load.When flow deflecting cone [4] when rising to the extreme higher position, be equivalent to maximum opening, the diagram fully open position, at this moment the surface of flow deflecting cone becomes a stream interface with runner crown.During compressor emergency shutdown, primer fluid pressing system, B chamber oil pressure are greater than the A chamber, and piston [7] moves down, and drive flow deflecting cone [4] and move down, and until getting back to former complete shut-down position, the speed of control flow deflecting cone [4] motion can make unit pressure and speed rise and be no more than permitted value.
For small-sized unit, the operation system of control flow deflecting cone motion can not used the hydraulic operation in the example, and uses mechanically actuated instead, and screw rod is welded in the flow deflecting cone cylindrical hole, can reach moving up and down of flow deflecting cone by spiral.
The operation system of flow deflecting cone also can be placed in the draft tube center.
This new type hydraulic turbine applies to mixed-flow, bulb-style, diagonal flow type unit.
This water turbine with adjustable outlet of rotary wheel is compared with traditional hydraulic turbine has following advantage:
1, traditional hydraulic turbine must be changed the various forms of motion in the governor motion for the switch of realizing stator, thereby so that regulating system complexity, water distributor is huge, and deflection cone forms of motion of the present invention is single, and moving linearly vertically only is so only need a simple hydraulic system can realize its operation, governor motion is simple, volume-diminished, thus hydraulic turbine overall dimension compact conformation, size are dwindled, greatly reduce cost, simplified manufacturing.
2, in this hydraulic turbine, do not existed owing to water distributor, also eliminated by the hydraulic loss that stator causes thereupon, fluidised form also approaches the design fluidised form in the cavity between simultaneously stator outlet and runner import, the outlet of rotary wheel fluidised form also improves, so the hydraulic loss of runner import and export all reduces, total hydraulic loss of the hydraulic turbine descends greatly, and optimum efficiency is higher than traditional hydraulic turbine, and cavitation, wearing and tearing alleviate.
3, in normal range of operation in the draft tube pressure pulsation amplitude reduce, unit operation stability improves.
Claims (3)
1, a kind of water turbine with adjustable outlet of rotary wheel, form by volute [1], seat ring [2], runner [3], main shaft [6], nut [10], draft tube [11] and operation system, it is characterized in that the runner bucket outlet port is mounted with collection water distributor, runner cone, valve acts on one, control and regulate the flow deflecting cone [4] of water flow by axial linear movement, change outlet of rotary wheel area, piston rod in the operation system [9] lower end is fixed in the cylindrical hole of flow deflecting cone [4] bottom with interference fit, and the nut of screwing on [10] makes it to fix with cone.
2, water turbine with adjustable outlet of rotary wheel according to claim 1 is characterized in that the hydraulic system that operation system is made up of servomotor cylinder [5], piston [7], high-pressure oil pipe [8], piston rod [9], lubricant receiver [12].
3, water turbine with adjustable outlet of rotary wheel according to claim 1 is characterized in that runner [3] exit edge of blade is on same diameter circle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92108047A CN1076253A (en) | 1992-03-06 | 1992-03-06 | Water turbine with adjustable outlet of rotary wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92108047A CN1076253A (en) | 1992-03-06 | 1992-03-06 | Water turbine with adjustable outlet of rotary wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1076253A true CN1076253A (en) | 1993-09-15 |
Family
ID=4943173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92108047A Pending CN1076253A (en) | 1992-03-06 | 1992-03-06 | Water turbine with adjustable outlet of rotary wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1076253A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536591A (en) * | 2012-02-07 | 2012-07-04 | 戴会超 | Mixed-flow type water turbine for increasing survival rate of fishes |
| CN103032249A (en) * | 2012-12-14 | 2013-04-10 | 华北水利水电学院 | Fixed guide vane-free ultra-low specific speed mixed-flow water turbine special for cooling tower |
| CN105971805A (en) * | 2016-06-21 | 2016-09-28 | 中国水利水电科学研究院 | Integrated francis type water turbine-generator unit for regulating flow through cylindrical valve |
| CN111649004A (en) * | 2020-06-30 | 2020-09-11 | 浙江理工大学 | High-speed centrifugal pump reverse-rotation hydraulic turbine device |
| CN114738167A (en) * | 2022-04-29 | 2022-07-12 | 河海大学 | Miniature water turbine with X-shaped wing-shaped rotating wheel and capable of being used for pipeline water flow power generation |
-
1992
- 1992-03-06 CN CN92108047A patent/CN1076253A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536591A (en) * | 2012-02-07 | 2012-07-04 | 戴会超 | Mixed-flow type water turbine for increasing survival rate of fishes |
| CN102536591B (en) * | 2012-02-07 | 2014-04-16 | 戴会超 | Mixed-flow type water turbine for increasing survival rate of fishes |
| CN103032249A (en) * | 2012-12-14 | 2013-04-10 | 华北水利水电学院 | Fixed guide vane-free ultra-low specific speed mixed-flow water turbine special for cooling tower |
| CN105971805A (en) * | 2016-06-21 | 2016-09-28 | 中国水利水电科学研究院 | Integrated francis type water turbine-generator unit for regulating flow through cylindrical valve |
| CN105971805B (en) * | 2016-06-21 | 2018-05-29 | 中国水利水电科学研究院 | A kind of self-contained Francis hydroturbine generator set using tubular valve regulating flow |
| CN111649004A (en) * | 2020-06-30 | 2020-09-11 | 浙江理工大学 | High-speed centrifugal pump reverse-rotation hydraulic turbine device |
| CN114738167A (en) * | 2022-04-29 | 2022-07-12 | 河海大学 | Miniature water turbine with X-shaped wing-shaped rotating wheel and capable of being used for pipeline water flow power generation |
| CN114738167B (en) * | 2022-04-29 | 2023-06-16 | 河海大学 | Miniature water turbine with X-shaped wing-shaped runner capable of being used for pipeline water flow power generation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |