CN1916391A - Hydraulic controlled multiinjector system in impulse turbine - Google Patents
Hydraulic controlled multiinjector system in impulse turbine Download PDFInfo
- Publication number
- CN1916391A CN1916391A CNA2006100217907A CN200610021790A CN1916391A CN 1916391 A CN1916391 A CN 1916391A CN A2006100217907 A CNA2006100217907 A CN A2006100217907A CN 200610021790 A CN200610021790 A CN 200610021790A CN 1916391 A CN1916391 A CN 1916391A
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- CN
- China
- Prior art keywords
- nozzle
- nozzle needle
- feedback
- oil pipe
- flow diverter
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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
- F03B1/00—Engines of impulse type, i.e. turbines with jets of high-velocity liquid impinging on blades or like rotors, e.g. Pelton wheels; Parts or details peculiar thereto
- F03B1/04—Nozzles; Nozzle-carrying members
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Turbines (AREA)
- Control Of Water Turbines (AREA)
Abstract
A multiinjector system controlled by hydraulic pressure and set on impact water turbine is featured as enabling to change direction of water jet flow quickly not to let water jet flow impact on bucket type of water turbine when load is shedded and simultaneously closing injector slowly not to cause overpressure on water lead pipe for satisfying requirement of electric energy quality safely and stably.
Description
Technical field
The invention belongs to the manipulating nozzles and the control system thereof of impulse turbine in the hydroelectric power unit.
Background technique
Impulse turbine is to belong to the high head unit, comes exerting oneself of regulating and controlling hydraulic generator unit by nozzle, and is long to the diversion pressure steel tube of high head unit, the rated speed height of water turbine.For guaranteeing safe operation, to adopt multiinjector on the one hand, adjusting jet diameter size, the water wheels rotating speed is quickened, unit requires nozzle to close and wants fast when removal of load on the other hand, overrun in order to avoid produce unit, want slow, destroy diversion pressure steel tube to avoid producing water hammer but diversion pressure steel tube requires nozzle to close again.People are for solving this contradiction, adopted the method for control nozzle and flow diverter, the method of control nozzle and flow diverter has the mechanical type lever of employing, cam etc. at present, earlier by flow diverter is very fast jet is departed from runner when removal of load, raise to prevent generating unit speed, the while is shut-off nozzle lentamente, so that not producing big hydraulic pressure, diversion pressure steel tube do not rise, but because the operation of mechanical lever, cammingly is complicated, easy break-down is so need to improve.
Summary of the invention
Purpose of the present invention promptly is to overcome the shortcoming of prior art, provide a kind of simple in structure, the hydraulic controlled multiinjector system in impulse turbine that repair and maintenance adopts the microcomputer special governor to realize easily can satisfy the quality of power supply and regulate the requirement that guarantees in safety and steady ground.
Purpose of the present invention is achieved through the following technical solutions: hydraulic controlled multiinjector system in impulse turbine, form by diversion steel pipe, flow diverter, microcomputer special governor, water outlet at diversion steel pipe is equipped with nozzle, flow diverter, the oil pipe connection mouth of nozzle and the oil pipe connection mouth of flow diverter,, be connected by the oil gear of oil pipe with the microcomputer special governor.
The left end of nozzle is a nozzle carrier, the right-hand member of nozzle is equipped with nozzle cover, be equipped with nozzle on the nozzle cover, the core of nozzle has the nozzle needle axle, and the inside left end of nozzle needle axle is the feedback tapered sleeve, and right-hand member is a nozzle needle, feedback tapered sleeve and nozzle needle link into an integrated entity, the feedback tapered sleeve cooperates with the nozzle needle feedback rod that is positioned on the nozzle carrier side, and nozzle needle cooperates with nozzle, the oil pipe connection mouth of the side of nozzle carrier, is connected with microcomputer special governor oil gear.
By top narration as can be seen, the present invention has the following advantages: the present invention is simple in structure, repair and maintenance is convenient, when removal of load, can change the water jet direction rapidly, be not flushed on the scoop-type turbine, while is shut-off nozzle lentamente, can not cause aqueduct hydraulic pressure superpressure, make it safety and steady ground and satisfy the quality of power supply and regulate the requirement that guarantees, establish solid foundation for high automation degree direction develops.
Fig. 1: hydraulic controlled multiinjector system in impulse turbine structural representation
Fig. 2: impulse turbine hydraulic control multiinjector and flow diverter structural representation
Wherein: 1, nozzle 2, nozzle cover 3, nozzle 4, nozzle needle axle 5, feedback tapered sleeve 6, nozzle needle 7, nozzle needle feedback rod 8, oil pipe connection mouth 9, oil pipe connection mouth 10, nozzle carrier 11, flow diverter 12, oil pipe connection mouth 13, oil pipe connection mouth 14, servomotor 15, microcomputer special governor 16, oil pipe 17, diversion steel pipe
Embodiment
The present invention will be further described below in conjunction with accompanying drawing: as shown in Figure 1, be equipped with nozzle 1, flow diverter 11 directly to Pelton wheel at the water outlet of diversion steel pipe 17.According to payload, drop into nozzle 1 and flow diverter 11 numbers arbitrarily by 1,2,4 modes, the oil pipe connection mouth 8,9 of nozzle 1 and the oil pipe connection mouth 12,13 of flow diverter 11 are connected with microcomputer special governor 15 oil gears by oil pipe 16.
Nozzle 1 and flow diverter 11 structural representations are as shown in Figure 2, left end at nozzle 1 is a nozzle carrier 10, in the middle of the nozzle carrier 10 is water intake, nozzle 1 right-hand member is equipped with nozzle cover 2, be equipped with nozzle 3 on the nozzle cover 2, the core of nozzle 1 has nozzle needle axle 4, the inside left end of nozzle needle axle 4 is feedback tapered sleeves 5, right-hand member is a nozzle needle 6, and feedback tapered sleeve 5 links into an integrated entity with nozzle needle 6, and feedback tapered sleeve 5 cooperates with the nozzle needle feedback rod 7 that is positioned on nozzle carrier 10 sides, when feedback tapered sleeve 5 moves, nozzle needle feedback rod 7 just moves up and down, and information transmission to microcomputer special governor 15, is controlled the oil pipe connection mouth 8 of nozzle carrier 10 sides, oil pressure in 9 the pipe, promptly control nozzle needle 6 mobile positions, nozzle needle 6 cooperates with nozzle 3, and control water outlet jet diameter size is until closing.Flow diverter 11 is fixed on nozzle carrier 10 and the nozzle cover 2, oil pipe connection mouth 12 on the flow diverter 11,13 are connected with microcomputer special governor 15 oil gears, the servomotor 14 of microcomputer special governor 15 control flow diverters 11, when proper functioning, servomotor 14 is in water jet diameter top all the time, does not interfere jet.The adjustment that impulse turbine is exerted oneself realizes by changing the water jet diameter, Flow-rate adjustment when nozzle needle 6 is responsible for normal the operation, when unit needs removal of load, if nozzle needle 6 is closed diversion steel pipe 17 internal pressures are sharply increased, produce water hammer, destroy steel pipe, if nozzle needle 6 is slowly closed, to cause the transient state speed of unit to rise, and produce unit and overrun.Therefore the present invention is when needing removal of load, and microcomputer special governor 15 oil gears are pressed corresponding oil pipe connection mouth fuel feeding.At first, make the servomotor 14 of flow diverter 11 change the water jet direction rapidly, close nozzle needle 6 more slowly simultaneously, make it safety and steady ground and satisfy the quality of power supply and regulate the requirement that guarantees.
Pressing such scheme implements, for prolonging the unit maintenance phase, strengthen the reliability of nozzle, therefore, do not adopt spring in the nozzle 1, to be stabilized in a certain aperture motionless for nozzle needle 6 when unit moved under the situation of steady load, because microcomputer special governor 15 main control valves lap up and down make maintenance certain pressure in the nozzle needle operating cavity just, its size of the power of closing that is produced by this pressure just equates with the water active force that nozzle needle 6 heads trend towards opening, so nozzle needle 6 can be stabilized on the equilibrium position that this and external load adapt, and satisfies the quality of power supply.
Claims (2)
1, hydraulic controlled multiinjector system in impulse turbine, form by diversion steel pipe (17), flow diverter (11), microcomputer special governor (15), it is characterized in that: the water outlet at diversion steel pipe (17) is equipped with nozzle (1), flow diverter (11), oil pipe connection mouth (12), (13) of the oil pipe connection mouth (8) of nozzle (1), (9) and flow diverter (11) are connected by the oil gear of oil pipe (16) with microcomputer special governor (15).
2, according to the described hydraulic controlled multiinjector system in impulse turbine of claim 1, it is characterized in that: the left end of nozzle (1) is nozzle carrier (10), the right-hand member of nozzle (1) is equipped with nozzle cover (2), be equipped with nozzle (3) on the nozzle cover (2), the core of nozzle (1) has nozzle needle axle (4), the inside left end of nozzle needle axle (4) is a feedback tapered sleeve (5), right-hand member is nozzle needle (6), feedback tapered sleeve (5) links into an integrated entity with nozzle needle (6), feedback tapered sleeve (5) cooperates with the nozzle needle feedback rod (7) that is positioned on nozzle carrier (10) side, nozzle needle (6) cooperates with nozzle (3), the oil pipe connection mouth (8) of the side of nozzle carrier (10), (9) be connected with microcomputer special governor (15) oil gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100217907A CN1916391A (en) | 2006-09-08 | 2006-09-08 | Hydraulic controlled multiinjector system in impulse turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100217907A CN1916391A (en) | 2006-09-08 | 2006-09-08 | Hydraulic controlled multiinjector system in impulse turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1916391A true CN1916391A (en) | 2007-02-21 |
Family
ID=37737438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100217907A Pending CN1916391A (en) | 2006-09-08 | 2006-09-08 | Hydraulic controlled multiinjector system in impulse turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1916391A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513960A (en) * | 2011-12-14 | 2012-06-27 | 中国水利水电第五工程局有限公司 | Installation method of impulse turbine distributing pipes |
| CN103429886A (en) * | 2011-01-18 | 2013-12-04 | 阿尔斯通再生能源技术公司 | Curved conduit pertaining to hydraulic machine, distribution group for pelton turbine wheel, and hydraulic machine |
| CN106089545A (en) * | 2016-08-23 | 2016-11-09 | 苏永发 | Outer nozzle mouth device and application process are changed in the increasing of impulse turbine Optimum Hydraulic Design |
-
2006
- 2006-09-08 CN CNA2006100217907A patent/CN1916391A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103429886A (en) * | 2011-01-18 | 2013-12-04 | 阿尔斯通再生能源技术公司 | Curved conduit pertaining to hydraulic machine, distribution group for pelton turbine wheel, and hydraulic machine |
| CN102513960A (en) * | 2011-12-14 | 2012-06-27 | 中国水利水电第五工程局有限公司 | Installation method of impulse turbine distributing pipes |
| CN102513960B (en) * | 2011-12-14 | 2013-08-28 | 中国水利水电第五工程局有限公司 | Installation method of impulse turbine distributing pipes |
| CN106089545A (en) * | 2016-08-23 | 2016-11-09 | 苏永发 | Outer nozzle mouth device and application process are changed in the increasing of impulse turbine Optimum Hydraulic Design |
| CN106089545B (en) * | 2016-08-23 | 2019-10-25 | 苏永发 | Outer nozzle mouth device and application method are changed in nozzle of impulse water turbine mouth, increasing |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |