CN201827005U - Backflushing centrifugal water turbine - Google Patents
Backflushing centrifugal water turbine Download PDFInfo
- Publication number
- CN201827005U CN201827005U CN2010205901942U CN201020590194U CN201827005U CN 201827005 U CN201827005 U CN 201827005U CN 2010205901942 U CN2010205901942 U CN 2010205901942U CN 201020590194 U CN201020590194 U CN 201020590194U CN 201827005 U CN201827005 U CN 201827005U
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- Prior art keywords
- runner
- water turbine
- water
- recoil
- water guide
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- Expired - Fee Related
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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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Abstract
The utility model provides a backflushing centrifugal water turbine which is characterized by consisting of a casing, and a rotating wheel arranged in the casing and connected with a mainshaft and a water inlet pipe; the edge of the rotating wheel is provided with six servomotors; a water guide chamber is arranged in the rotating wheel; the water guide chamber is internally provided with a water guide cone and a water guide vane; each servomotor is internally provided with an adjustable jet flow mechanism and a crisscross water guide shed; jet flow power reclaiming water hopper tiles are uniformly arranged on the internal wall of the casing; the adjustable jet flow mechanism consists of a nozzle, a spraying needle connected with a needle rod, a chain wheel connected with the other end of the needle rod, a chain connected with the chain wheel, and an adjusting screw rod connected with the chain; a return spring is arranged on the needle rod; the structure of the rotating wheel adopts a novel flowing rule and a novel work mode; and the form of the water kinetic energy is converted from the backflushing work mode into the mechanical energy. The backflushing centrifugal water turbine is applicable to the working conditions of medium and high water head, large flow and slow efficiency change, is wide in running scope, small in volume, light in weight, compact and simple in structure, convenient to maintain and repair and low in manufacturing cost, and the like.
Description
Technical field
The utility model relates to mechanical equipment technical field, specifically a kind of recoil centrifugal water turbine.
Background technique
People have done a lot of researchs to the characteristics of motion of current in water turbine and have obtained many achievements, but the motion operating mode of current in runner is very complicated, up to the present.Still there is not this rule on top of.
At present domestic different water turbine according to runner conversion flow energy mode can be divided into two big classes:
(1), reaction turbine and impulse turbine, reaction turbine comprises mixed-flow, axial flow, diagonal flow type and tubular turbine.
(2), impulse turbine is divided into water bucket type, tilt-impulse type and crossflow turbine.
More than two class water turbine in operating conditions, also have deficiency.At Francis turbine: because runner bucket is positioned at radially, so the runner size is big, the volute dish is big, the guide mechanism complexity, stator and runner flow velocity are big, wearing and tearing certainly will increase, and insoluble problem is that runner can be subjected to cavitation and cavitation corrosion, runner volute water distributor technical matters complexity in manufacture process.The equipment heaviness.The excavation works amount is big when building the power station, and cost increases.
At impulse turbine: since the work runner only part cross water, the work of part bucket, so the current inflow-rate of water turbine is little, thereby under certain head and active wheel diameter condition, exerting oneself of impulse turbine is smaller, in addition the rotating speed of impulse turbine compare low, this be since runner import absolute velocity big, the garden circular velocity diminishes and exerts oneself for a short time, has caused lower specific speed.
Summary of the invention
Order of the present utility model is to overcome the deficiency that existing water turbine hydrodynamic(al) can be underutilized, and a kind of recoil centrifugal water turbine is provided, and it utilizes reaction force and centrifugal force to draw the jet with supercharging kinetic energy, can obtain service behaviour efficiently.
The technical solution of the utility model is: the recoil centrifugal water turbine is by casing and interior runner connects main shaft and intake pipe constitutes; There are six servomotors at the runner edge, is flume in the middle of the runner, is provided with diversion awl, water guide blade in the flume; Be provided with adjustable jet mechanism and cross water guide canopy in the servomotor, be evenly equipped with jet power recovery bucket watt on the casing inner wall; The other end that adjustable jet mechanism connects a shank, shank by nozzle, nozzle needle connects that sprocket wheel, sprocket wheel connect chain, chain connects adjusting screw rod and constitutes, and return spring is housed on the shank.
The core of recoil centrifugal water turbine of the present utility model is the novel runner by six servomotor combinations, this runner is used new mode of work-doing reaction force and is added centrifugal force and multiinjector, can not only increase the acting number of times of runner and big inflow-rate of water turbine, and speed regulating mechanism and critical piece can be set in runner, effectively utilize acting moment and centrifugal force, make runner show favorable mechanical performance and energy response.Square being directly proportional (increase by 2 times as peripheral velocity, centrifugal force then increases by 4 times) of centrifugal force and runner rotating speed, centrifugal force is very big in the operation process, this feature can be multiplied hydraulic thrust and power.
The beneficial effects of the utility model are: the structure of runner adopts new flowing law and new mode of work-doing, and the form of hydrodynamic(al) energy is to be exchanged into mechanical energy by the recoil mode of work-doing.Several directional nozzles are set can make that runner is stressed to be tending towards rationally, the applied energy that increases acting number of times and centrifugal force is fully used, and is simple in structure, the specific speed height.Be applicable to middle high head, the operating mode that inflow-rate of water turbine is big, efficiency change is mild, its range of operation broadness, volume is little, in light weight, compact structure is simple, maintenance service is convenient, cost is low etc.
Description of drawings
Fig. 1 is the structural representation of recoil centrifugal water turbine of the present utility model.
Fig. 2 is a recoil centrifugal water turbine nozzle arrangements schematic representation of the present utility model.
Fig. 3 is that Fig. 2 middle sprocket chain part A is to view;
Fig. 4 is recoil centrifugal water turbine rotaring wheel structure of the present utility model (part) schematic representation.
Fig. 5 is the local figure of the A-A among Fig. 4.
Fig. 6 is a recoil centrifugal water turbine runner modular construction schematic representation of the present utility model.
Among the figure, 1-runner, 2-nozzle, 3-water guide blade, 4-diversion awl, 5-water guide canopy, 6-main shaft, 7-thrust-bearing, 8-bearing support, 9-balance flywheel, the 10-cover that is connected, 11-double-sealing rotating ring, 12-stationary seal ring pipe, the 13-casing, 14-casing flange, 15-is sliding sleeve fixedly, the 16-pressure arm, 17-bucket watt, the 18-bucket is every, 19-clutch sliding sleeve, 20-dials poor, 21-thrust-bearing, 22-pressure gauge, 23-stop gate, the 24-intake pipe, 25-servomotor, 26-return spring, 27-hydraulic jack, the 28-vent, 29-pressure arm bearing, 30-anchor bolt, 31-nozzle needle, the 32-sleeve pipe, 33-jet pipe, 34-sliding sleeve, 35-return spring, the 36-pressing plate, 37-regulator relaxation screw rod, 38-pressing plate seat, 39-sprocket wheel, 40-connects hub, and 41-chain, 42-sprocket wheel, 43-be the chain folder fixedly, the 44-sliding sleeve, 45-shank, 46-back-up ring.
Embodiment
As shown in Figure 1, recoil centrifugal water turbine of the present utility model connects main shaft 6 and intake pipe 24 etc. by casing 13 and interior runner 1 thereof and constitutes; The runner edge has 25, six servomotor six five equilibriums of six servomotors to be arranged in runner disk maximum radius place; In the middle of the runner is flume, is provided with diversion awl 4, water guide blade 3 in the flume; Be provided with adjustable jet mechanism and cross water guide canopy 5 (be to be used for rectification and eliminate the eddy flow of current in the bend pipe, can be used as a cover for seat of nozzle needle) in the servomotor, be evenly equipped with jet power recovery bucket watts 17 on the casing inner wall; As Fig. 2, shown in Figure 3, adjustable jet mechanism is by (guiding) nozzle 2, the other end that nozzle needle 31 connects a shank 45, shank connects sprocket wheel 42, sprocket wheel 42 connects chain 41, chain connection adjusting screw rod 37 formations, return spring 35 is housed on the shank, be connected with pressure arm 16 on the adjusting screw rod, pressure arm has a fulcrum (support) to be fixed on the runner, the moving of nozzle needle, can change current diameter by the nozzle needle ejection, thereby flow and power to have changed water turbine.The end that main shaft is connected with runner is provided with return spring 26, clutch 19 (clutch is a tuning difference type) successively, and the other end of main shaft is provided with balance flywheel 9.Water guide blade is arranged on runner center intake chamber and diversion awl base forms half round runner, water guide blade becomes six five equilibriums, and be 70 ° of angle arc inclination leaves, unified clockwise direction (just as a propeller cavitation) can divide current in each runner of undercutting and (can play pressurization).Diversion awl: be located in the flume of runner water intake center, its bottom is by the bolt silk braid, compresses and fixing runner, current clocklike introduced runner, and eliminate the bump loss of rotary water current.Bucket watt semicircular in shape, bucket watt suitable for reading has a water-stop sheet, it is uprightly to be fixed in the casing, contact with injection stream is positive, jet rushes at bucket watt center, flows out along bucket watt end opening then, has anti-square, bounce-back, recovery jet function, and convert reaction force to, pass to runner recoil work done.The size of casing affects the working procedure of water turbine to a certain extent, and it should have enough spaces, makes pressure and atmosphere in the casing suitable, also must make the runner current unimpeded, and not with jet disturbance, casing also is used for supporting whole water turbine.
Recoil centrifugal water turbine working principle of the present utility model is: runner is in the atmosphere all the time works.High-pressure water flow from penstock enters the flume of runner axial centre by following intake pipe 24, enter the cross water guide canopy of servomotor to six runners by water guide blade 3, and under action of centrifugal force, come from the high pressure cylinder jet that adds centrifugal force by jet from nozzle ejection, this jet impulse is on bucket watt 17 (as the hydrodynamic force recovering devices) in the fixing casing, as shown in Figure 4.When the irresistible jet impulse energy of runner shaft moment of torsion resistance, resistance just by reaction force along runner directional nozzle alteration of form speed and direction, promote hydraulic generator unit rotation work done (centrifugal hydraulic engine) and produce energy admittedly be referred to as to recoil.
Injection stream be at the longitudinal edge of runner along acting, help increasing high pulling torque, accelerate the runner peripheral velocity, specific speed is improved.The hydraulic generator unit is changeless along with its rotating speed of change of parameter at work, and steadily fixing in order to make rotating speed, the chain sprocket in the servomotor is regulated operating working conditions change.
The utility model is to adopt hydraulic pressure push-and-pull lever to promote the clutch pack fork, when the plain thrust bearing sliding sleeve is stressed, depresses pressure arm drive sprocket wheel 42 promotion shanks and closes spout to complete square the moving of nozzle.When unclamping backward, under the active force of sliding sleeve return spring 26 and shank return spring 35, overcome hydraulic thrust and centrifugal force, finish the regulating and controlling flow and make the unit smooth running.
The shape structure characteristics of recoil centrifugal water turbine of the present utility model is to belong to vertical shaft shape water turbine, it is bigger that casing is that whole steel sheet is made the cylindrical cylinder of going up, following cylinder is smaller, last top is an afterbirth shape, be used for supporting and the runner main shaft is installed, but bearing support, balance flywheel, casing are to go up lower flange to connect demolition into two.Runner is to be suspended on the main tapping and to be arranged in casing inside, and bucket watt is in equilibrium between the nozzle.On the runner that is connected can select Si Ya and flange for use, connecting down, the water inlet pipe mouth place has rotating ring seal ring and stationary ring seal ring to finish sealing.Keep minimum range between casing internal diameter and runner nozzle and the bucket watt.The injection stream of recoil centrifugal water turbine moves in air all the time until the whole process of leaving bucket watt when operating conditions, the water flow pressure that is positioned at each several part remain unchanged (being equal to atmospheric pressure).The phenomenon that can not get muddled between the recoil centrifugal water turbine nozzle, bucket watt are arranged vertically with casing, and the water that inclines is very well.
Claims (6)
1. a recoil centrifugal water turbine is characterized in that being made of casing and interior runner connection main shaft and intake pipe thereof; There are six servomotors at the runner edge, is flume in the middle of the runner, is provided with diversion awl, water guide blade in the flume; Be provided with adjustable jet mechanism and cross water guide canopy in the servomotor, be evenly equipped with jet power recovery bucket watt on the casing inner wall; The other end that adjustable jet mechanism connects a shank, shank by nozzle, nozzle needle connects that sprocket wheel, sprocket wheel connect chain, chain connects adjusting screw rod and constitutes, and return spring is housed on the shank.
2. recoil centrifugal water turbine according to claim 1 is characterized in that six servomotor six five equilibriums are arranged in runner disk maximum radius place.
3. recoil centrifugal water turbine according to claim 1 is characterized in that being connected with on the adjusting screw rod pressure arm, and pressure arm has a fulcrum to be fixed on the runner.
4. recoil centrifugal water turbine according to claim 1 is characterized in that the end that main shaft is connected with runner is provided with return spring, clutch successively.
5. recoil centrifugal water turbine according to claim 1 is characterized in that the other end of main shaft is provided with the balance flywheel.
6. recoil centrifugal water turbine according to claim 1, it is characterized in that water guide blade is arranged on runner center intake chamber, form half round runner with diversion awl base, water guide blade becomes six five equilibriums, and be the arc inclination leaf at 70 ° of angles, unified clockwise direction tilts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205901942U CN201827005U (en) | 2010-11-03 | 2010-11-03 | Backflushing centrifugal water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205901942U CN201827005U (en) | 2010-11-03 | 2010-11-03 | Backflushing centrifugal water turbine |
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| Publication Number | Publication Date |
|---|---|
| CN201827005U true CN201827005U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205901942U Expired - Fee Related CN201827005U (en) | 2010-11-03 | 2010-11-03 | Backflushing centrifugal water turbine |
Country Status (1)
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| CN (1) | CN201827005U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675598A (en) * | 2014-03-05 | 2015-06-03 | 农革会 | Hydraulic anti-impact power machine |
| WO2018236308A3 (en) * | 2017-03-08 | 2019-01-24 | Karto Ismail | A closed cycle hydroelectric plant with air hydraulics centrifuge jet turbine |
| CN110296030A (en) * | 2019-07-27 | 2019-10-01 | 四川力源水电设备制造有限公司 | The external servomotor jet pipe assembling structure of the hydraulic turbine |
| CN113062826A (en) * | 2020-06-03 | 2021-07-02 | 浙江富春江水电设备有限公司 | Shaft through-flow type fluid machinery passive anti-cavitation structure |
-
2010
- 2010-11-03 CN CN2010205901942U patent/CN201827005U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675598A (en) * | 2014-03-05 | 2015-06-03 | 农革会 | Hydraulic anti-impact power machine |
| WO2018236308A3 (en) * | 2017-03-08 | 2019-01-24 | Karto Ismail | A closed cycle hydroelectric plant with air hydraulics centrifuge jet turbine |
| CN110296030A (en) * | 2019-07-27 | 2019-10-01 | 四川力源水电设备制造有限公司 | The external servomotor jet pipe assembling structure of the hydraulic turbine |
| CN113062826A (en) * | 2020-06-03 | 2021-07-02 | 浙江富春江水电设备有限公司 | Shaft through-flow type fluid machinery passive anti-cavitation structure |
| CN113062826B (en) * | 2020-06-03 | 2022-07-15 | 浙江富春江水电设备有限公司 | Passive blade anti-cavitation structure of axial-flow Kaplan turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20131103 |