CN205370834U - Structure is opened to francis turbine's stator - Google Patents
Structure is opened to francis turbine's stator Download PDFInfo
- Publication number
- CN205370834U CN205370834U CN201620140375.2U CN201620140375U CN205370834U CN 205370834 U CN205370834 U CN 205370834U CN 201620140375 U CN201620140375 U CN 201620140375U CN 205370834 U CN205370834 U CN 205370834U
- Authority
- CN
- China
- Prior art keywords
- guide vane
- stator
- vane lever
- push
- speed governing
- Prior art date
- 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.)
- Expired - Fee Related
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Classifications
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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 utility model relates to a structure is opened to francis turbine's stator, including the hand wheel, by the governing box of hand wheel control, connect the speed governing support on the governing box, the speed governing link arm of setting on the adjustment support and the push -and -pull rod of connection speed governing link arm, wherein: the speed governing link arm is connected to push -and -pull rod one end, and the long guide vane lever who sets up is connected to the other end, should long guide vane lever with each weak point guide vane lever of circumference equipartition between be connected through the company's of control board, long, short guide vane lever opens the stator through linear motion's push -and -pull rod drive through control even board interlock. The utility model discloses a hand wheel rotates, and linear motion is to the push -and -pull rod, and long guide vane lever of rethread and the control even short guide vane lever of board promotion are rotated to open the stator, make water get into the spiral case, get into the runner and make it rotatory, make it can become mechanical energy. The utility model discloses through reforming transform, it is simpler to make the stator open the structure, and volute center space is bigger, on -the -spot installation and easy maintenance.
Description
Technical field
This utility model relates to Francis turbine, refers in particular to the stator opening structure of a kind of Francis turbine.
Background technology
The hydraulic turbine is the dynamic power machine energy of current being converted to rotating mechanical energy, and it belongs to the turbomachinery in fluid machinery.By the difference of energy mode conversion, it can be divided into reaction type and impact type two class.Counterattack type utilizes pressure energy and the kinetic energy of current, and impingement utilizes water flow dynamic energy.Hydraulic turbine critical piece: water part, water-guiding element, workpiece, sluicing parts.Francis turbine primary structure is made up of runner, main shaft, guide bearing, main shaft seal, seat ring, spiral case, top cover, base ring, earial drainage ring (foundation ring), seal ring, wearing plate, facing plate, stator and operating mechanism thereof, pit liner, machine hole annular crane, draft tube etc..
Francis turbine is as the one in the hydraulic turbine, and therefore compact conformation, efficiency is higher, adapts to very wide head scope, is one of widely used hydraulic turbine pattern in current countries in the world.When current are through this hydraulic turbine active wheel, it is with radial entrance, axially flow out, so also referred to as Francis turbine.Francis turbine is also known as the Francis hydraulic turbine, and current, from surrounding radial inflow runner, then generally axially flow out runner, and runner is made up of crown, lower ring and blade.It is applicable to head in 20 meters of scopes until 700 meters, mechanism is simple, stable, and efficiency is high, but it is usually and is used within the scope of middle head (50 meters to 400 meters), unit power output is from tens kilowatts to hundreds of thousands kilowatt, and current this hydraulic turbine EIAJ alreadys more than 700,000 kilowatts, is a kind of utilization hydraulic turbine the most widely.The composition of Francis turbine includes inlet part, water guide machinery, transhipment part, slave part, arranging section, and its critical piece has spiral case, top cover, seat ring, draft tube, base ring, control loop, stator, runner, main shaft etc..Wherein opening of stator is all adopt control loop structure to control to open at present, as in figure 2 it is shown, this structure is complex, installs and maintenance is less convenient.
Summary of the invention
The purpose of this utility model is improved for the shortcoming existed in background technology and problem and is innovated, it is provided that the stator opening structure of the Francis turbine of a kind of simple in construction.
The technical solution of the utility model is that structure is a kind of connects and controls the stator opening structure that guide vanes of water turbine is opened, include hands wheel, the governing box controlled by handwheel, it is connected to the speed governing bearing on governing box, it is arranged on the speed governing link arm adjusted on bearing and connects the push-pull bar of speed governing link arm, wherein: described push-pull bar one end connects speed governing link arm, the other end connects the long guide vane lever arranged, it is connected by control connecting plate between this long guide vane lever and each short-range missile vane arm of circumference uniform distribution, described length, short-range missile vane arm is driven by controlling connecting plate gearing unlatching stator by the push-pull bar of rectilinear motion.
Wherein in an embodiment, described control connecting plate is connected between adjacent guide vane arm one by one, and each control connects and is connected for detachable between guide vane lever.
Advantage of the present utility model and beneficial effect:
This utility model passes through hand wheel rotating, and push-pull bar does rectilinear motion, promotes short-range missile vane arm to rotate again through long guide vane lever and control connecting plate, thus opening stator, making water enter spiral case, entering runner and making it rotate so that it is can become mechanical energy.This utility model, through transformation, makes stator opening structure simpler, and volute central space is bigger, in-site installation and easy to maintenance.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model background technology structural representation.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is described more fully.Accompanying drawing gives first-selected embodiment of the present utility model.But, this utility model can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, the purpose providing these embodiments is to make to disclosure of the present utility model more thoroughly comprehensively.
It should be noted that when element be considered as " setting " or " connection " on another element, it can be directly arrange or be connected on another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein is identical with the implication that those skilled in the art of the present utility model are generally understood that with scientific terminology.Term used in the description is intended merely to and describes concrete enforcement purpose, it is not intended that in restriction this utility model.
As it is shown in figure 1, this Francis turbine includes spiral case 1, speed governing bearing 2, governing box 3, handwheel 4, speed governing link arm 5, push-pull bar 6, long guide vane lever 7, short-range missile vane arm 8, controls connecting plate 9, front shroud 10, holds water tank 11.Wherein speed governing bearing 2, governing box 3, handwheel 4, speed governing link arm 5, push-pull bar 6, long guide vane lever 7, short-range missile vane arm 8 and control connecting plate 9 form this stator opening structure.Long guide vane lever 7 and short-range missile vane arm 8 one end are fixed on front shroud 10, and the stator arranged in spiral case 1 connects front shroud 10, and long guide vane lever 7 other end connects push-pull bar 6, and long guide vane lever 7 is connected by controlling connecting plate 9 with the short-range missile vane arm 8 of both sides circle distribution.Push-pull bar 6 stress rectilinear motion, drives long guide vane lever 7 to move and drives all short-range missile vane arm 8 synchronization actions to rotate front shroud 10 to open stator by control connecting plate 9 simultaneously.
Embodiment described in the utility model is only the description that preferred implementation of the present utility model is carried out; not this utility model design and scope are defined; under the premise without departing from this utility model design philosophy; various modification that in this area, the technical solution of the utility model is made by engineers and technicians and improvement; protection domain of the present utility model all should be fallen into; the technology contents that this utility model is claimed, all records in detail in the claims.
Claims (2)
1. a stator opening structure for Francis turbine, connects and controls guide vanes of water turbine and open, include handwheel, the governing box controlled by handwheel, it is connected to the speed governing bearing on governing box, is arranged on the speed governing link arm adjusted on bearing and connects the push-pull bar of speed governing link arm, it is characterised in that:
Described push-pull bar one end connects speed governing link arm, the other end connects the long guide vane lever arranged, being connected by control connecting plate between this long guide vane lever and each short-range missile vane arm of circumference uniform distribution, described long and short guide vane lever is driven by controlling connecting plate gearing unlatching stator by the push-pull bar of rectilinear motion.
2. the stator opening structure of Francis turbine according to claim 1, it is characterised in that described control connecting plate is connected between adjacent guide vane arm one by one, each control connects and is connected for detachable between guide vane lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140375.2U CN205370834U (en) | 2016-02-20 | 2016-02-20 | Structure is opened to francis turbine's stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620140375.2U CN205370834U (en) | 2016-02-20 | 2016-02-20 | Structure is opened to francis turbine's stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205370834U true CN205370834U (en) | 2016-07-06 |
Family
ID=56271137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620140375.2U Expired - Fee Related CN205370834U (en) | 2016-02-20 | 2016-02-20 | Structure is opened to francis turbine's stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205370834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372678A (en) * | 2018-11-12 | 2019-02-22 | 江苏大学 | A kind of hydraulic turbine Transient Flow experimental provision |
-
2016
- 2016-02-20 CN CN201620140375.2U patent/CN205370834U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372678A (en) * | 2018-11-12 | 2019-02-22 | 江苏大学 | A kind of hydraulic turbine Transient Flow experimental provision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20200220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |