CN106089545B - Outer nozzle mouth device and application method are changed in nozzle of impulse water turbine mouth, increasing - Google Patents
Outer nozzle mouth device and application method are changed in nozzle of impulse water turbine mouth, increasing Download PDFInfo
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- CN106089545B CN106089545B CN201610705907.7A CN201610705907A CN106089545B CN 106089545 B CN106089545 B CN 106089545B CN 201610705907 A CN201610705907 A CN 201610705907A CN 106089545 B CN106089545 B CN 106089545B
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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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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/80—Repairing, retrofitting or upgrading methods
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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)
Abstract
Outer nozzle mouth device and application method are changed in nozzle of impulse water turbine mouth, increasing, its main feature is that being combined with technology and management, Energy Conservation benefit.It is characterized in two interior cone angles of jet hole, two (inside and outside) jet holes.It is uneven to solve intrinsic two jet area VELOCITY DISTRIBUTIONs, average speed decline, inefficient problem.1. fluid accelerates obviously have local head loss in reducing pipe.It collides cone angle in nozzle needle and jet hole to fluid to join area, it is to reduce the main cause of water machine efficiency that the rapidly avried flow of formation, which is not converted to slowly variable flow,.2. the displacement of the direction nozzle needle Xiang Guanshui subtracts flow, resistance is increased to fluid, reduces jet area mainstream speed beam, the uneven state of the secondary increased VELOCITY DISTRIBUTION of flow velocity degree beam, causes head loss.Resistance to displacement is reduced, can increase water machine efficiency.Overall efficiency 16% or so is improved with two schemes.1. improving 10% or so after the optimization of water guide component.2. operation operation is generated electricity with different inner diameters outer nozzle mouth and improves 6% or so again.
Description
Technical field
This technology is applied in impulse turbine waterpower core part with hydraulic, hydrodynamics professional knowledge.
Background technique
Hydroelectric generation is to be transformed into kinetic energy with the position of certain mass water, potential energy, acts on rotary wheel of water turbine and is changed into
Mechanical energy, runner output mechanical energy to generator are changed into the energy conversion process form of electric energy.
Impulse turbine (impact, tiltedly hit, double-click three kinds of types) is with the intracorporal fluid of waterpower core nozzle, after acceleration
Jet stream is kinetic energy, and impact runner translating rotation is mechanical energy.Have in one nozzle body a cone nozzle needle and one only one
The water guide component of interior angle inner cone jet hole composition, nozzle needle are mounted in jet hole and join, and form a conical ring.Fluid is in nozzle
Speed-raising rushes at jet hole conical ring process and continues to accelerate backlash to runner work done.Needle position is to nozzle intrinsic displacement flow increase
It opens, is reduced to close to jet hole outer displacement flow, nozzle needle contact nozzle prostomum surface current amount is zero, and the hydraulic turbine stops doing power.
The velocity variations that jet stream is exported in jet hole, the instantaneous steady flow of concentrated expression are dynamic under corresponding working head speed
It can mass change.Because local head loss influences speed decline, the quality of kinetic energy also declines jet stream, and efficiency is caused to decline.It is different
Working head, effluxvelocity is significantly different, the kinetic energy of jet stream and flow velocity it is square directly proportional.
The common trait of original design two defects performance is: the jet area VELOCITY DISTRIBUTION of delivery nozzle mouth is in non-homogeneous injection,
Average speed is decline, causes local head loss.Waterpower core design and operation operational design are not optimal.
Accelerating in terms of form from fluid through water distributor, the design of tapered tubular type, fluid collides jet hole, nozzle needle and joins area,
It there is local head loss.Jet stream collides cone angle, nozzle needle in upstream face jet hole and joins area, is penetrated in a square resistance area
The energy conversion loss of stream is directly proportional to velocity squared.Jet stream is rapidly avried flow in acceleration region, and section VELOCITY DISTRIBUTION is non-equal
Even state does not convert rapidly avried flow effectively, and energy conversion is made to have loss, efficiency decline.
It is to reach by drop effluxvelocity and subtract rear flow and former metered flow passes through same section that load down, which subtracts flow operation nozzle needle,
Jet hole internal diameter, the identical balance method within the unit time.Nozzle needle is displaced to direction is closed, and is resistance of the nozzle needle manufacture to jet stream
Power, blocking portion quartile, potential energy transmit in jet body, reduce mainstream speed area in jet area, secondary flow velocity degree area increases
Add, section VELOCITY DISTRIBUTION is heterogeneous state, and the displacement of the direction nozzle needle Xiang Guanshui causes head loss.
Summary of the invention
One) concrete scheme: existing on former impact type waterpower core component, which influences the two of efficiency and operation reduction generated energy, lacks
Falling into the policy solved is: the design of Optimum Hydraulic core component；Reduce the direction nozzle needle Xiang Guanshui shift length.Reach holding working water
Head effluxvelocity is evenly distributed, and effective percentage is answered in recovery.Detail scheme are as follows:
1. accelerating in advance to jet body as far as possible, the energy conversion loss of region of quadratic resistance law is reduced.Reply is nozzle water outlet
Interior angle reduces, suitably shortening nozzle length (changing outer nozzle mouth mechanical device for technological transformation).
2. pair nozzle needle dilated diameter, increase guide flow cross section, reduces and the jet hole conical surface that meets water is collided.
Jet hole is changed to two interior cone angles: increasing one small interior cone angle and is used to the rapidly avried flow after accelerating being transformed into slowly variable flow area
Domain, cone angle disjunctor is fixed on nozzle use in two differences；Or it is divided into two inner and outer nozzles mouths and uses.
3. jet hole is divided into two: being stayed in nozzle with nozzle needle contact internal diameter, or be fixed on outside nozzle water outlet end face and be
Inner nozzle mouth；Another outer nozzle mouth (being combined by multiple and different internal diameters) is connect and replaceable with inner nozzle mouth.Inner and outer nozzles spiral shell
Line is connected as replacing manually, and multiple outer nozzle combinations are fixed in turntable changes for machinery.Outer nozzle mouth internal diameter is according to required overcurrent
Amount determines.
4. changing different inner diameters outer nozzle mouth can be changed individually in the aperture of machine upper cover with hand；Or multiple and different internal diameter outer nozzle mouth peaces
In turntable, replaced by mechanical device.Device terrestrial operation 10 minutes complete, can manually, electrically, be automatically brought into operation.
Two) particular content:
1. optimizing the specific design requirement of water guide component (because water dispenser power and producer's manufacture are not of uniform size, to set for this proposition
Count parameter), be mainly reflected in jet stream acceleration, water conservancy diversion, increase slowly variable flow provincial characteristics: cone angle is anti-in two differences of jet hole
It reflects two regions, and is designed with inside and outside two jet holes, operated in a manner of different inner diameters outer nozzle mouth by replacing, keep the work of jet stream
Make head speed (have adjustment to original design, but do not conflict with specification).
Water guide component optimization design range and explanation (table one)
2. pair multiinjector mouth type and it is inadaptable change the old machine of outer nozzle mouth, with cone angle one in two, fix a jet hole
It uses.
Old machine technological transformation or jet hole external water dispenser can be made of 2 jet holes, can manually fast quick change it is single, or use
A whole set of different inner diameters outer nozzle mouth device changes outer nozzle mouth.
(1) hand changes outer nozzle mouth: the old water dispenser of technological transformation can (device be pressed by " the 1st point of particular content " design in water dispenser base
Cooperation, installation need to be divided into two.One is fixed in nozzle body with nozzle needle contact internal diameter as inner nozzle mouth, another outer nozzle
The single more changing device of jet diameter needed for mouthful may be selected) upper cover reinforce after aperture or the installation and replacement in machine is cheated.(2) outer nozzle mouth
It is threadedly coupled with inner nozzle mouth, there is sealing and locking device design.(3) specifically cooperation shape drawing is shown in drawing number 3, numbers
34-36.Former jet deflector (removal of load flow diverter) should suitably change size, cannot have blocking to jet stream.
Changing outer nozzle mouth mechanical device and application method is needed length after size after the optimization of inner nozzle mouth by cooperation, installation
It wants, is fixed in nozzle body, the mechanical device that multiple optional jet stream different inner diameters outer nozzle mouth combinations are fixed in turntable is more
It changes.Removal of load flow diverter needs to change position, specifically sees Fig. 4 number 42.
Three) general description:
To achieve the above object, the present invention adopts the following technical scheme:
Outer nozzle mouth device is changed in impulse turbine increasing, characterized in that water guide component ruler in Optimum Hydraulic core nozzle body
It is very little, meet jet stream speed-raising, water conservancy diversion, acceleration, it is ensured that jet area and the section VELOCITY DISTRIBUTION for subtracting rear flow are uniform, are maintained at former work
Make the kinetic energy efficiency of head speed.A jet hole is formed with cone angle in two differences, or is divided into two inside and outside (interchangeable differences
Internal diameter) jet hole combination, solve former 2 drop effluxvelocities, inefficient problem, comprising:
1, main member installation description:
The water guide scantling of nozzle body component is optimized, the single-nozzle mouth of two interior angles of composition；Fixed inner nozzle mouth,
Replacement outside is combined into mechanical system and is replaced with device with single in multiple and different internal diameter outer nozzle mouths manually.
Outer nozzle mouth single device is outside the nozzle water outlet end face after optimization nozzle, nozzle needle, with the inner nozzle fixed
Mouth connection；Multiple and different internal diameter outer nozzle mouth mechanical devices, the nozzle body both ends of the surface in base side have three axis for fixing
Have with transmission and combine the fixed turntable of multiple outer nozzle mouths, wherein an axis has turntable rotary index function concurrently.Three axis with turn
Disk connection, and extended base outer end has screw thread for loosening, tighten admittedly, wherein an axis is used for rotary index equipped with gear；Nozzle: come
There are three engaging lugs in water end (W.E.) face, change outer nozzle mouth turntable for three axis linear motions, fixed, transmission；The installation of water outlet end face
Fixed connecting plate accepts the disk operation that multiple outer nozzle mouths are housed；
Nozzle, nozzle needle, jet hole, fixed connecting plate, turntable, are articulated in base, and the acting transmission of jet impulse runner is outer
The electrical power generators in portion；
Nozzle body component is water guide component, which is located at the water end (W.E.) that comes of the hydraulic turbine, and with the runner in the hydraulic turbine
The angle of cut radially tangential or in 22 ° 30 '；
2, component optimized dimensions and different component descriptions:
There are three engaging lugs carrying out water end (W.E.) for nozzle, are the basal planes operated on the outside of three axis connections；Nozzle water outlet end inner cone
Angle reduces 3-8 ° than cone angle in former design and is accelerated with raising speed；Nozzle water outlet end length reduces 3-5cm than former design length
With fixed connecting plate；
Nozzle needle increases water conservancy diversion area, and cone angle increases 10-15 degree than former design, and jet diameter is than maximum spout mouthpiece internal diameter
Bore big 0.5-1 jet diameter；
Jet hole: optimization design size and three kinds of application methods, purpose ensure the working head speed of jet stream.Optimization is set
Meter: two interior cone angle compositions, more slowly variable flow regions.Than designing small 5-15%, nozzle interior angle changes small inner cone diameter at butt end；Greatly
Within interior cone angle 0.5-15 degree bigger than the cone angle of nozzle needle；Small interior cone angle constitutes cone angle from jet diameter direction, to inflow direction
0.5-10 degree；Big cone angle and small-angle length ratio are 1:0.5-2.2；
Three kinds of application methods that jet hole combines: 1. types are multiinjector mouths or using the method for fixing a jet hole,
It is used with two cone angle disjunctors.2. disjunctor jet hole is divided into inner and outer nozzles mouth.Auger interior angle is placed on internal diameter is contacted with nozzle needle
Interior is inner nozzle mouth, and is mounted in nozzle.Outer nozzle mouth has internal screw thread connection inner nozzle mouth and locking device, in water dispenser upper cover
Outer nozzle mouth is changed with hand in aperture position.3. inner nozzle mouth is fixed in nozzle, multiple and different internal diameter outer nozzle mouths are fixed on turntable
Interior, outer nozzle mouth internal diameter is docked with the outer diameter of inner nozzle mouth, and the outer nozzle mouth of needs is changed by operating device.
After jet hole optimized dimensions, because increasing slowly variable flow region, entire jet hole lengthened, need to adjust watershed size or
Change installation site.
Turntable is articulated on the fixed connecting plate of base and nozzle face by three axis, and turntable is provided with multiple and different
The outer nozzle mouth of internal diameter, when work selection different inner diameters outer nozzle mouth one of them for after butting up against inner nozzle mouth center respectively
It is fixed, it is used to keep jet stream that should have working head speed；
3, the description of outer nozzle mouth mechanical device application method is changed:
Axial displacement adjusts component, for driving turntable shaft to linear reciprocating motion, do the separation of inner and outer nozzles mouth, combination,
Fixed work, including the first adjusting means, the second adjusting means, third adjusting means；
Rotating electric machine is replaced scale between different inner diameters outer nozzle mouth and flushing fixed connecting plate and turntable veneer for turntable and is mentioned
For rotary power；
Latch assembly facilitates axial displacement, the axial displacement is adjusted for fixing the good rotation angle of turntable adjustment
Component driver turntable does socket or leaves the linear reciprocating motion of inner nozzle mouth.
Preferably, two-stage difference interior angle jet hole is installed in the nozzle body component, is designed than original and increases level-one inner cone
The slowly variable flow region at angle；And can replace manually it is single in multiple and different internal diameter outer nozzle mouths, or can mechanical replacement fix
Multiple outer nozzle mouths on turntable.Outer nozzle mouth is made of multiple and different internal diameters, can individually replace manually or machinery is replaced.
Preferably, the nozzle body component is divided into inner nozzle body component and outer nozzle body component, can singly cover installation.Or it is more
A outer nozzle mouth is fixed on turntable by a fixed connecting plate, is installed on outside the nozzle body water outlet end face in base.
Preferably, the first adjusting means, the second adjusting means, third adjusting means include motor, lead screw, lead screw spiral shell
Female, pressing plate, can be used for being manually operated, it is also possible to electrically operation.The motor is used to provide power, and the feed screw nut is connected to
On the power output end of motor, the feed screw nut is installed on pressing plate, which is used for axial reciprocating linear drives turntable.
Preferably, which includes the first locking system and the second locking system.
Preferably, impulse water turbine increasing changes outer nozzle mouth device and is additionally provided with electric control gear, the electric control gear and rotation
Motor, the first adjusting means, the second adjusting means, third adjusting means, the first locking system, between the second locking system.
Impulse turbine increases the application method for changing outer nozzle mouth device, which is characterized in that and different outer nozzle mouths are replaceable,
Successively the following steps are included:
S1: working head send flow to nozzle body component through aqueduct, and the nozzle is located at the side of the hydraulic turbine, flow
On the runner of the directive hydraulic turbine, hydraulic turbine rotation is pushed；When needing load down, electric control gear is manipulated at this time and issues instruction P1 Guan Shuiting
Machine or manual actuation nozzle needle, which close water, shuts down；
S2: electric control gear issues instruction P21, after turntable outer nozzle mouth leaves inner nozzle mouth, releases latch assembly to turntable
Restriction, then issue instruction P22 driving turntable rotation again, according to load shedding needs, select one of outer nozzle mouth with it is interior
Jet hole end is correspondingly connected with, and since multiple outer nozzle mouth internal diameters are different, electric control gear can instruct selection and be most suitable for currently
The outer nozzle mouth that load down requires uses；
S3: when turntable turns to the position of inner and outer nozzles mouth center coincidence, electric control gear issues instruction P31, stops driving
Turn disk；Electric control gear issues instruction P32, restores latch assembly and limits the rotation stop of turntable；Last electric control gear issues instruction
P33, driving turntable are adjacent on being fixedly connected with plate face, so that outer nozzle muzzle pressure inner nozzle mouth outer diameter and end face；
S4: using another outer nozzle mouth if necessary to adjustment, then execute S2, S3.
Preferably, step S1 further includes sub-step S11: when needing load down, issuing instruction P1 and closes water shutdown.
Preferably, step S2 further includes sub-step S21: instruction P21 is issued in electric control gear and is issued between instruction P22,
Electric control gear can be sent out instruction P211, and driving turntable leaves inner nozzle mouth.
Compared with the prior art, efficiency seems higher to the present invention.The features of the present invention is combined with technology and management to section
It can want benefit.Invention is characterized in: Optimum Hydraulic core design: 1. join jet hole together with cone angle in jet hole two；2. will
One jet hole is divided into second level, and level-one inner nozzle mouth is stayed in or is fixed in nozzle.The second level is can hand replacement；Or it is multiple and different
Internal diameter outer nozzle mouth is fixed on the device in turntable, is changed with mechanical type.The purpose of the present invention solves raw water power core design
With operate it is not perfect cause the non-homogeneous form of jet area VELOCITY DISTRIBUTION, cause jet stream average speed to decline, water machine efficiency is high
The problem of.Gross efficiency 16% or so can be improved through practice in two schemes: with 1 scheme water machine efficiency up to 95% or so, than existing
85% or so water machine efficiency is high by 10% or so；Generating efficiency 6-8% can be improved again with the 2nd scheme.It can be seen that the configuration of the present invention is simple,
It is feasible from theory and practice, to the whole nation nearly 3.5 ten thousand impulse turbines currently in use during 13, five transformation and
New machine design has positive effect.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the cross section view at Fig. 1 P-P；
Fig. 3 is the structural schematic diagram that one hand changes jet hole component；
Fig. 4 is the matching relationship schematic diagram of two locking bar assemblies and turntable；
Wherein, 10, base；11, electric cabinet；20, shaft；22, the first adjusting means；23, the second adjusting means；24,
Three adjusting means；25, turntable；26, band gear rotating electric machine；27, driven gear；28, nozzle needle；30, fixed connecting plate；31, it rushes
Cleaning device；33, nozzle；34, inner nozzle mouth；35, outer nozzle mouth；36, check bolt；40, the first positioning device；41, second is fixed
Position device；42, flow diverter.
Specific embodiment
As Figure 1-Figure 4, outer nozzle mouth device is changed in impulse turbine increasing, characterized in that Optimum Hydraulic core nozzle
Internal water guide scantling, meets jet stream speed-raising, water conservancy diversion, acceleration, it is ensured that jet area and the cross sectional flow rate distribution for subtracting rear flow
Uniformly, the kinetic energy efficiency of He Yuan working head speed.A jet hole is formed with cone angle in two differences；Or it is divided into two
Inside and outside (interchangeable different inner diameters) jet hole combination solves the problems, such as that former 2 drop effluxvelocities are inefficient, comprising:
One), main member installation description:
The water guide scantling of nozzle body component is optimized, the single-nozzle mouth of two interior angles of composition；Fixed inner nozzle mouth,
Replacement outside is combined into mechanical system and is replaced with device with single in multiple and different internal diameter outer nozzle mouths manually.
Outer nozzle mouth single device is outside the nozzle water outlet end face after optimization nozzle, nozzle needle, with the inner nozzle fixed
Mouth connection；Multiple and different internal diameter outer nozzle mouth mechanical devices, the nozzle body both ends of the surface in base side have three axis for fixing
Have with transmission and combine the fixed turntable of multiple outer nozzle mouths, wherein an axis has turntable rotary index function concurrently.Three axis with turn
Disk connection, and stretching out base outer end has screw thread for loosening, tighten admittedly, wherein an axis is used for rotary index equipped with gear；It can be manual
Operation and connection motor electrically operate；
Nozzle: there are three engaging lugs for water end face, change outer nozzle mouth turntable for three axis linear motions, fixed, transmission；
Fixed connecting plate is installed in water outlet end face, accepts the disk operation that multiple outer nozzle mouths are housed；
Nozzle, nozzle needle, jet hole, fixed connecting plate, turntable, are articulated in base, and the acting transmission of jet impulse runner is outer
The electrical power generators in portion；
Nozzle body component is water guide component, which is located at the water end (W.E.) that comes of the hydraulic turbine, and with the runner in the hydraulic turbine
The angle of cut radially tangential or in 22 ° 30 '；
Two), component optimized dimensions and different component descriptions:
There are three engaging lugs carrying out water end (W.E.) for nozzle, are the basal planes operated on the outside of three axis connections；Nozzle water outlet end inner cone
Angle reduces 3-8 ° than cone angle in former design and is accelerated with raising speed；Nozzle water outlet end length reduces 3-5cm than former design length
With fixed connecting plate；
Nozzle needle increases water conservancy diversion area, and cone angle increases 10-15 degree than former design, and jet diameter is than maximum spout mouthpiece internal diameter
Big 0.5-1 jet diameter；
Jet hole: optimization design size and three kinds of application methods, purpose ensure the working head speed of jet stream.Optimization is set
Meter: two interior cone angle compositions, more slowly variable flow regions.Than designing small 5-15%, nozzle interior angle changes small inner cone diameter at butt end；Greatly
Within interior cone angle 0.5-15 degree bigger than the cone angle of nozzle needle；Small interior cone angle constitutes cone angle from jet diameter direction, to inflow direction
0.5-10 degree；Big cone angle and small-angle length ratio are 1:0.5-2.2.
Three kinds of application methods that jet hole combines: 1. types are multiinjector mouths or using the method for fixing a jet hole,
It is used with two cone angle disjunctors.2. disjunctor jet hole is divided into inner and outer nozzles mouth.Auger interior angle is placed on internal diameter is contacted with nozzle needle
Interior is inner nozzle mouth, and is mounted in nozzle.Outer nozzle mouth has internal screw thread connection inner nozzle mouth and locking device, in water dispenser upper cover
Outer nozzle mouth is changed with hand in aperture position.3. inner nozzle mouth is fixed in nozzle, multiple and different internal diameter outer nozzle mouths are fixed on turntable
Interior, outer nozzle mouth internal diameter is docked with the outer diameter of inner nozzle mouth, and the outer nozzle mouth of needs is changed by operating device.
After jet hole optimized dimensions, because increasing slowly variable flow region, entire jet hole lengthened, need to adjust watershed size or
Change installation site.
Turntable is articulated on the fixed connecting plate of base and nozzle face by three axis, and turntable is provided with multiple and different
The outer nozzle mouth of internal diameter, when work selection different inner diameters outer nozzle mouth one of them for after butting up against inner nozzle mouth center respectively
It is fixed, it is used to keep jet stream that should have working head speed；
Three) description of outer nozzle mouth mechanical device application method, is changed:
Axial displacement adjusts component, for driving turntable shaft to linear reciprocating motion, do the separation of inner and outer nozzles mouth, combination,
Fixed work, including the first adjusting means, the second adjusting means, third adjusting means；
Rotating electric machine is replaced scale between different inner diameters outer nozzle mouth and flushing fixed connecting plate and turntable veneer for turntable and is mentioned
For rotary power；
Latch assembly facilitates axial displacement, the axial displacement is adjusted for fixing the good rotation angle of turntable adjustment
Component driver turntable does socket or leaves the linear reciprocating motion of inner nozzle mouth.
Preferably, two-stage difference interior angle jet hole is installed in the nozzle body component, is designed than original and increases level-one inner cone
The slowly variable flow region at angle；And can replace manually it is single in multiple and different internal diameter outer nozzle mouths, or can mechanical replacement fix
Multiple outer nozzle mouths on turntable.Outer nozzle mouth is made of multiple and different internal diameters, can individually replace manually or machinery is replaced.
Preferably, the nozzle body component is divided into inner nozzle body component and outer nozzle body component, can singly cover installation.Or it is more
A outer nozzle mouth is fixed on turntable by a fixed connecting plate, is installed on the nozzle body water outlet end face in base.
Preferably, the first adjusting means, the second adjusting means, third adjusting means include motor, lead screw, lead screw spiral shell
Female, pressing plate, can be used for being manually operated, it is also possible to electrically operation.The motor is used to provide power, and the feed screw nut is connected to
On the power output end of motor, the feed screw nut is installed on pressing plate, which drives turntable for axial reciprocating.
Preferably, which includes the first locking system and the second locking system, can be manually operated and electronic behaviour
Make.
Preferably, impulse water turbine increasing changes outer nozzle mouth device and is additionally provided with electric control gear, the electric control gear and rotation
Motor, the first adjusting means, the second adjusting means, third adjusting means, the first locking system, between the second locking system, both
It can also pass through electric connection by connecting manually.
Impulse turbine increases the application method for changing outer nozzle mouth device, which is characterized in that and different outer nozzle mouths are replaceable,
Successively the following steps are included:
S1: working head send flow to nozzle body component through aqueduct, and the nozzle of the nozzle body component is located at the hydraulic turbine
Side, on the runner of the flow directive hydraulic turbine, push hydraulic turbine rotation；When needing load down, electric control gear is manipulated at this time and is issued
Instructing P1 to close, water is shut down or manual actuation nozzle needle closes water shutdown；
S2: electric control gear issues instruction P21, after turntable outer nozzle mouth leaves inner nozzle mouth, releases latch assembly to turntable
Restriction, then issue instruction P22 driving turntable rotation, according to load shedding needs, a selection wherein outer nozzle mouth and interior spray again
Mouthpiece end is correspondingly connected with, and since the multiple outer nozzle mouth internal diameter is different, electric control gear, which can instruct, is most suitable for current drop
The outer nozzle mouth of load uses；
S3: when turntable turns to the position of inner and outer nozzles mouth center coincidence, electric control gear issues instruction P31, stops driving
Turn disk；Electric control gear issues instruction P32, restores latch assembly and limits the rotation stop of turntable；Last electric control gear issues instruction
P33, driving turntable, which is adjacent to, to be fixedly connected in plate face, so that outer nozzle muzzle, pressure inner nozzle mouth outer diameter and end face；
S4: being used using another outer nozzle mouth if necessary to adjustment, then execute S2, S3.
Preferably, step S1 further includes sub-step S11: when needing load down, issuing instruction P1 and closes water shutdown.
Preferably, step S2 further includes sub-step S21: instruction P21 is issued in electric control gear and is issued between instruction P22,
Electric control gear can be sent out instruction P211, and driving turntable leaves inner nozzle mouth.
Benefit comparison after scheme implementation:
The impulse turbine optimization design adds and changes the effect of outer nozzle mouth device and application method compared with prior art
Rate improves situation:
This technology is impulse turbine technological break-through and progress.It is the solution to two defect problems of former design.This technology
And implement on the hydraulic turbine, water dispenser gross efficiency improves 16% or so.Wherein Optimum Hydraulic core design behind efficiency can be on 95% left side
The right side, it is more horizontal than current product efficiency universal by 85% hereinafter, improving 10% or so；The operation operation of outer nozzle mouth is changed by installation, it is right
Generated energy improve 6% or more (as soon as year in completely send out or account for 40% of total electricity or so close to full generated energy, to there is storage capacity not overflow
It is also to have pipe damage that stream is generated electricity using peak load, is at this moment selected lower than 0.5-1 jet diameter outer nozzle mouth power generation of peak load
It is optimal).
One) waterpower core optimization behind efficiency lifts 2.Because worry technology is tampered, only implement in two power stations, can arrive at any time existing
Field identification.1. sharing 4 Ganzhou produces XJA-501*13 to 12.5 turbine-generator units power stations, wherein 3 sets are matched 630kw, revolving speed
1000 generators change rear nozzle mouth outlet diameter 154 ± 0.2；1 set is matched 1000 generator of 500kw revolving speed.142 meters of water when stopping paying out
Head changes rear nozzle mouth water outlet diameter 146.5 ± 0.2.Bill machine sends out 740kw, and full hair, working head are 130 meters to 4 machines simultaneously
(survey of 0.25 precision pressure table) generates electricity for 24 hours, and high pressure measurement (not plus minimum 2% electricity of transformer loss) reflects generated energy
It is 60500 degree or so.Measurement on June 12nd, 2016 has 2 units in control flow power electric meter, reflects that real-time power is 680Kw
(level of efficiency is 600kw or less at present).2. sharing 3 set Shaoyang produces CJA237-W-70/1*7 generating set power station, match
1000 generator of 500kw revolving speed changes rear nozzle mouth water outlet internal diameter 86.5 ± 0.2, shuts down as 270 meters of heads, and single machine sends out 640kw,
Three machines completely send out 250 meters of working head (0.25 precision pressure table) simultaneously, each machine control flow power electric meter reflection is 540,550,
570kw (level of efficiency is 500kw or less at present).
Illustrate: two power stations have been run 12 years or more, do not change runner.Wherein shock machine runner is because more than water channel digging mine, sand
On the high side, runner has once worn out point of water sword of blade, and locals, which welded, not to polish.Raw water canal is not increased after two power station technological transformation, and flow is not
Increase.
Two) outer nozzle mouth device is changed in two kinds of increases: hand changing device has been carried out, and efficiency comparative is with maximum spout mouthpiece every
100Kw drops, and it can multiple electricity 6-8% with small level-one outer nozzle mouth is changed；The whole series change outer nozzle mouth mechanical device, principle, structure, transmission
It is out of question.
Three) 4.7 ten thousand rural small hydropower are reflected with Ministry of Water Resources and Power Industry in 2014 in the whole nation, and technological transformation impulse turbine has closely
3.5 ten thousand, 1,000,000,000 yuan can be at least increased income every year after changing, it is recoverable with covering aperture replacement outer nozzle mouth method 1.5 years on machine
Investment.Calculating formula is 47000 (seat) * 0.333 (impact type accounting example) * 2.2 (average number of units) * 250kw (mean power) *
3000 (utilizing hour) * 0.16 (amplification) * 0.25 yuan of (rate for incorporation into the power network)=10.33 hundred million yuan.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (5)
1. outer nozzle mouth device is changed in impulse turbine increasing, characterized in that
Component is adjusted including nozzle body component, fixed connecting plate, turntable, base, rotating electric machine, latch assembly and axial displacement；
The nozzle body component, the fixed connecting plate, the turntable, are articulated in the base；
The nozzle body component is located at the water end (W.E.) that comes of the hydraulic turbine, and the runner in center line and the hydraulic turbine is radially tangential or is in 22 °
30 ' the angle of cut；The nozzle body component includes nozzle, nozzle needle, jet hole combination unit；
The jet hole combination unit is made of inner nozzle mouth and the outer nozzle mouth with different inner diameters；The inner nozzle mouth is fixed
In nozzle, the outer nozzle mouth is arranged outside nozzle water outlet end face, the outer diameter of the inner nozzle mouth and the outer nozzle mouth
Internal diameter whorl connection, and the outer nozzle mouth be equipped with locking device；
The turntable is installed in the base by the fixed connecting plate, and in the water outlet end face of the nozzle body component
Outside；The outer nozzle mouth of multiple and different internal diameters is equipped in the turntable；There are three axis for fixing and being driven the turntable, institute
The one end for stating three axis is connect with the turntable, and is pivotally connected with the base and the fixed connecting plate, and the extended machine
Seat outer end is threadably secured；The other end of three axis respectively with three engaging lugs that nozzle water end face is set
It is connected；
The water outlet end face of the nozzle is mounted on fixed connecting plate, is accepted with the turntable；
The rotating electric machine provides rotary power for the turntable；
The latch assembly rotates the turntable of angle, well for fixed adjustment in order to which turntable does axial displacement；
The axial displacement adjusts component, for driving the turntable linear reciprocating motion, to the inner nozzle mouth and outer spray
Mouthpiece is separated, is combined.
2. outer nozzle mouth device is changed in impulse turbine increasing as described in claim 1, characterized in that the impulse turbine increases
Change outer nozzle mouth device and be additionally provided with electric control gear, the electric control gear and the rotating electric machine, the axial displacement adjust component,
The latch assembly changes outer nozzle mouth device by being electrically connected, for increasing.
3. impulse turbine as claimed in claim 2 increases the application method for changing outer nozzle mouth device, which is characterized in that different
The outer nozzle mouth of internal diameter is replaceable, successively the following steps are included:
S1: working head send fluid to nozzle body component through aqueduct, and the nozzle is located at the side of the hydraulic turbine, and fluid is penetrated
To on the runner of the hydraulic turbine, hydraulic turbine rotation is pushed；
S2: electric control gear issues instruction P21, after the outer nozzle mouth of turntable leaves inner nozzle mouth, releases latch assembly to turntable
It limits, then issues instruction P22 driving turntable rotation again, according to load down needs, select one of outer nozzle mouth and interior spray
Mouthpiece end is correspondingly connected with, and since multiple outer nozzle mouth internal diameters are different, electric control gear is most suitable for current drop by instruction selection
The outer nozzle mouth of burden requirement uses；
S3: when turntable turns to the position of inner and outer nozzles mouth center coincidence, electric control gear issues instruction P31, stops driving and turns
Disk；Electric control gear issues instruction P32, restores latch assembly and limits the rotation stop of turntable；Last electric control gear issues instruction P33,
Driving turntable is adjacent on fixed connecting plate, so that outer nozzle muzzle pressure inner nozzle mouth outer diameter and end face；
S4: using another outer nozzle mouth if necessary to adjustment, then execute S2, S3.
4. impulse turbine as claimed in claim 3 increases the application method for changing outer nozzle mouth device, it is characterised in that: step
S1 further includes sub-step S11: when needing load down, manipulation electric control gear issues instruction P1 and closes water shutdown or manual actuation nozzle needle
Guan Shui is shut down.
5. impulse turbine as claimed in claim 3 increases the application method for changing outer nozzle mouth device, it is characterised in that: step
S2 further includes sub-step S21: issuing instruction P21 in electric control gear and issues between instruction P22, electric control gear can be sent out referring to
P211 is enabled, driving turntable leaves inner nozzle mouth.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610705907.7A CN106089545B (en) | 2016-08-23 | 2016-08-23 | Outer nozzle mouth device and application method are changed in nozzle of impulse water turbine mouth, increasing |
| PCT/CN2016/102971 WO2018035953A1 (en) | 2016-08-23 | 2016-10-22 | Device for adding or replacing impulse turbine outer nozzle opening designed for optimized hydraulic power and application method of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610705907.7A CN106089545B (en) | 2016-08-23 | 2016-08-23 | Outer nozzle mouth device and application method are changed in nozzle of impulse water turbine mouth, increasing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106089545A CN106089545A (en) | 2016-11-09 |
| CN106089545B true CN106089545B (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610705907.7A Active CN106089545B (en) | 2016-08-23 | 2016-08-23 | Outer nozzle mouth device and application method are changed in nozzle of impulse water turbine mouth, increasing |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106089545B (en) |
| WO (1) | WO2018035953A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108372040B (en) * | 2016-11-25 | 2020-04-17 | 沈阳芯源微电子设备股份有限公司 | Nozzle switching mechanism that moisturizes |
| CN114654220B (en) * | 2022-02-28 | 2023-09-15 | 东方电气集团东方电机有限公司 | Impact model water turbine nozzle assembling and aligning method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916391A (en) * | 2006-09-08 | 2007-02-21 | 四川东风电机厂有限公司 | Hydraulic controlled multiinjector system in impulse turbine |
| CN202417781U (en) * | 2011-12-29 | 2012-09-05 | 重庆水轮机厂有限责任公司 | Structure of full-oil operating unit-controlled water turbine nozzle |
| DE102013202533B3 (en) * | 2013-02-18 | 2014-04-03 | Voith Patent Gmbh | Nozzle for a free-jet turbine |
| CN104481777A (en) * | 2014-09-29 | 2015-04-01 | 华自科技股份有限公司 | Impulse turbine multi-nozzle switching method |
| CN104912718A (en) * | 2015-07-01 | 2015-09-16 | 肖炳生 | Impact type or inclined water turbine nozzle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1849350A (en) * | 1928-03-17 | 1932-03-15 | Pelton Water Wheel Co | Hydraulic needle nozzle |
| SU1116206A1 (en) * | 1982-04-22 | 1984-09-30 | Производственное Объединение Турбостроения "Ленинградский Металлический Завод" | Pelton hydraulic turbine nozzle drive |
| JPH05321813A (en) * | 1992-05-19 | 1993-12-07 | Fuji Electric Co Ltd | Sediment mixing-in preventing device for pelton hydraulic turbine needle |
| JP3099104B2 (en) * | 1994-03-02 | 2000-10-16 | 株式会社日立製作所 | Needle valve |
| CN2733030Y (en) * | 2004-09-17 | 2005-10-12 | 四川东风电机厂有限公司 | Hydraulic control multi-nozzle device for impulse turbine |
| FR3010460B1 (en) * | 2013-09-10 | 2016-07-22 | Alstom Renewable Technologies | PELTON TURBINE HYDRAULIC INJECTOR AND METHOD FOR PARTIALLY DISASSEMBLING SUCH INJECTOR |
| 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 |
-
2016
- 2016-08-23 CN CN201610705907.7A patent/CN106089545B/en active Active
- 2016-10-22 WO PCT/CN2016/102971 patent/WO2018035953A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916391A (en) * | 2006-09-08 | 2007-02-21 | 四川东风电机厂有限公司 | Hydraulic controlled multiinjector system in impulse turbine |
| CN202417781U (en) * | 2011-12-29 | 2012-09-05 | 重庆水轮机厂有限责任公司 | Structure of full-oil operating unit-controlled water turbine nozzle |
| DE102013202533B3 (en) * | 2013-02-18 | 2014-04-03 | Voith Patent Gmbh | Nozzle for a free-jet turbine |
| CN104481777A (en) * | 2014-09-29 | 2015-04-01 | 华自科技股份有限公司 | Impulse turbine multi-nozzle switching method |
| CN104912718A (en) * | 2015-07-01 | 2015-09-16 | 肖炳生 | Impact type or inclined water turbine nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018035953A1 (en) | 2018-03-01 |
| CN106089545A (en) | 2016-11-09 |
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