CN105927453B - A kind of adjustment device of Francis turbine - Google Patents
A kind of adjustment device of Francis turbine Download PDFInfo
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- CN105927453B CN105927453B CN201610420226.6A CN201610420226A CN105927453B CN 105927453 B CN105927453 B CN 105927453B CN 201610420226 A CN201610420226 A CN 201610420226A CN 105927453 B CN105927453 B CN 105927453B
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- oil cylinder
- cylinder head
- control ring
- gag lever
- lever post
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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
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
- F03B3/183—Adjustable vanes, e.g. wicket gates
-
- 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
- F03B15/00—Controlling
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1433—End caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
- F15B15/1461—Piston rod sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1471—Guiding means other than in the end cap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- 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
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/602—Control system actuates through electrical actuators
-
- 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
- F05B2270/00—Control
- F05B2270/60—Control system actuates through
- F05B2270/604—Control system actuates through hydraulic actuators
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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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of adjustment devices of Francis turbine, including：Control ring, support base and servomotor, 3 support bases have been mounted equidistant in the lateral wall of top cover, two vertical support rods are symmetrically arranged on each support base, control top surface of ring is equipped with 6 uniformly distributed fixed links, and the both ends of servomotor are rotatably connected on respectively on fixed link and support rod；The upper edge of control ring is uniformly provided with straight-tooth, gag lever post is equipped on three support bases, one end of gag lever post be equipped with in control ring along straight-tooth cooperation straight-tooth, it is installed towards the center of control ring at the straight-tooth end of gag lever post, gag lever post is equipped with the straight-tooth being coupled with gear, the gear is coupled with servo motor, and gag lever post is equipped with limit sleeve, and limit sleeve is fixedly mounted on support base.Technical purpose of the invention is to provide a kind of adjustment device for being arranged in the Francis turbine at the top of control ring to control ring locking, with 6 servomotors, servomotor equipped with gag lever post.
Description
Technical field
The present invention relates to hydraulic turbine field, the adjustment device of especially a kind of Francis turbine.
Background technique
The movable guide vane of the control water distributor of existing Francis turbine is mostly by the control to control ring come real
Existing, also have and movable guide vane is directly directly acted on by servomotor to control.
But the existing hydraulic turbine controlled by control ring movable guide vane be substantially by install two servomotors
It realizes, in this way when a servomotor is impaired or needs repairing, the control allowed for movable guide vane is extremely difficult, reliability is not
It is high.Existing Francis turbine is all the lock by being mounted on servomotor when movable guide vane is adjusted to suitable position
Device is determined to keep leading leaf divergence, and usual locking device is merely able to be locked in full pass or maximum opening, so that connecing
The based model for load duration of power device, a possibility that shortening the repair time of servomotor, and making servomotor oil leak increase.
Summary of the invention
For above-mentioned deficiency, technical purpose of the invention is that providing one kind is equipped with gag lever post to lock control ring
Adjustment device fixed, that the Francis turbine at the top of control ring is arranged in 6 servomotors, servomotor, this adjustment device
Locking control ring can be locked, by servomotor so that control ring is relatively reliable in more apertures by special gag lever post
It is mounted on the support base set on top cover, so that servomotor takes up space small, 6 servomotors being equipped with can facilitate servomotor to examine
It repairs, but also adjustment device is relatively reliable.
The invention is realized by the following technical scheme：
The adjustment device of Francis turbine of the invention, including：Control ring, support base and servomotor, for controlling work
The control ring of dynamic guide vane opening is mounted on water-turbine top cover, and 3 support bases, each support has been mounted equidistant in the lateral wall of top cover
Two vertical support rods are symmetrically arranged on seat, control top surface of ring is equipped with 6 uniformly distributed fixed links, and the both ends of servomotor turn respectively
It is dynamic to be connected on fixed link and support rod；The upper edge of control ring is uniformly provided with straight-tooth, is equipped with gag lever post on three support bases, limit
One end of position bar is equipped with and, along the straight-tooth of straight-tooth cooperation, the straight-tooth end of gag lever post is installed towards the center of control ring in control ring,
Gag lever post is equipped with the straight-tooth being coupled with gear, and the gear is coupled with servo motor, and gag lever post is equipped with limit
Set, limit sleeve are fixedly mounted on support base.
In above-mentioned technical proposal, 3 support bases are mounted equidistant by the lateral wall in top cover, and be equipped on support base
Support rod is equipped with servomotor between support rod and the fixed link for being mounted on control top surface of ring, controls control by servomotor
Support base is set on top cover by the rotation of ring so that leaf divergence is led in control, and fixed link is set to control top surface of ring, can be subtracted
Few equipment occupation space；Along straight-tooth is equipped in control ring, is cooperated by the straight-tooth on the straight-tooth and control ring on gag lever post, made
It is locked to obtain control ring, so that the aperture when locking of control ring is more, the movement of gag lever post is controlled by servo motor,
Compared to hydraulic control, Serve Motor Control is more accurate, maintenance cost is few, occupy little space, reacts quicker；It is equipped with
6 servomotors, so that the adjusting of control ring is relatively reliable.
Further, the servomotor includes：A oil cylinder head, B oil cylinder head, cylinder barrel and piston rod, A oil cylinder head, B oil cylinder head
End face be equipped with circular groove, the diameter of circular groove is 0.8 times of A oil cylinder head and B oil cylinder head outer diameter, usual A oil cylinder head
It is equal with the outer diameter of B oil cylinder head, cylinder barrel is fitted between two circular grooves, A oil cylinder head, B oil cylinder head and cylinder barrel form piston
Chamber；The circular groove bottom of A oil cylinder head is equipped with dashpot, and the depth of the dashpot is 0.8~1 times of circular groove depth,
The diameter of dashpot is 0.2 times of A oil cylinder head outer diameter；The centre bore that the bottom end of piston rod passes through B oil cylinder head is equipped with piston, living
The bottom of plug is equipped with a buffer head, and buffer head is cylinder, and the outer diameter and dashpot difference in internal diameters of buffer head are 1~8mm.
In above-mentioned technical proposal, by the way that the diameter of circular groove is set as 0.8 times of A oil cylinder head and B oil cylinder head outer diameter, make
Obtaining groove walls, there is enough intensity and cylinder barrel to be fixedly mounted, and dashpot is equipped in the circular groove bottom of A oil cylinder head, in piston
Bottom be equipped with a buffer head, in piston quickly into A oil cylinder head moving process, piston and the generation of A oil cylinder head is avoided to hit strongly
It hits, the outer diameter and dashpot difference in internal diameters of buffer head are that 1~8mm can be determined according to the actual size of servomotor；The depth of dashpot
It is 0.8~1 times of depth of groove, the diameter of dashpot is 0.2 times of A oil cylinder head outer diameter, so that dashpot has certain storage
The volume of liquid storage pressure oil, dashpot is too big, just will affect the intensity of A oil cylinder head.
Further, the material of the cylinder barrel is titanium alloy；The cylindrical wall both ends of piston are equipped with the guiding of titanium alloy material
The cylindrical wall middle part of ring, piston is equipped with trapezoidal seal groove, is equipped with ladder-shaped sealing ring in trapezoidal seal groove.
Further, it is arranged with the sleeve of titanium alloy material outside the piston rod, sealing ring is equipped between piston rod and sleeve.
In above-mentioned technical proposal, by the way that the material of cylinder barrel is set as titanium alloy, titanium alloy is with corrosion-resistant, intensity is high, resistance to
Heat and low temperature properties are good, are affected by temperature that small, toughness is high, so that cylinder barrel intensity made of titanium alloy is higher, more durable, reliability
More preferably, there is the titanium alloy of very high rigidity to enable to the abrasion of cylinder barrel very small, the set of titanium alloy is arranged with outside piston rod
Cylinder, so that the abrasion of the better tightness of cylinder barrel and piston, sleeve and piston is smaller, frictional force is lower；Between piston rod and sleeve
The sealing ring being equipped with is sealed piston rod and sleeve.
Further, the support base is " L " type, and support base includes vertical arm and horizontal arm, and vertical arm is mounted on top cover
Side, horizontal arm is mounted on the top of vertical arm, and the two sides of vertical arm are equipped with reinforcing rod one, between vertical arm and horizontal arm
Equipped with reinforcing rod two.
In above-mentioned technical proposal, by support base is set as include vertical arm and horizontal arm " L " type, vertical arm is mounted on
The side of top cover, so that volume shared by support base is smaller, space utilization rate is bigger.The reinforcing rod being equipped with can guarantee to support
Seat tool has enough intensity.
Further, the inner wall of the B oil cylinder head centre bore is equipped with two guide grooves and seal groove, and two guide grooves are respectively arranged on
The two sides of B oil cylinder head centre bore are equipped with seal groove between guide groove, the support ring of titanium alloy material, B oil cylinder are equipped in guide groove
The end face of head is equipped with the dustproof cover being coupled with piston rod.
In above-mentioned technical proposal, by being equipped with two guide grooves in B oil cylinder head centre bore, by the way that two guide grooves are set to B
The two sides of oil cylinder centre bore, the interior support ring for being equipped with titanium alloy material of guide groove, so that servomotor is able to bear bigger radial direction
Power, and it is able to solve the reliability that servomotor is improved the problem of piston rod is often pulled, the radial displacement of piston rod is more
It is small, while the leakproofness of servomotor is also improved, so that servomotor oil leak is less；Dustproof cover can carry out servomotor effective
Dust-separation.
Further, A oil cylinder head, B oil cylinder head circular groove bottom be equipped with respectively with A oil cylinder head, B oil cylinder head side wall connect
Logical through-hole, the shape of through-hole are " L " type, and the longitudinal hole bottom of through-hole is equipped with a sedimentation basin, and the inner wall of the dashpot is equipped with
Powerful permanent magnet, the permanent magnetic iron that dashpot inner wall is equipped with most short setting at a distance from sedimentation basin.
In above-mentioned technical proposal, by the circular groove bottom of A oil cylinder head, B oil cylinder head be equipped with respectively with A oil cylinder head, B
" L " type through-hole of oil cylinder head side wall connection, through-hole can install oil pipe, control the disengaging of hydraulic oil, to control piston rod
Position is to adjust the movable guide vane connecting with control ring；By being equipped with a sedimentation basin in through-hole, and it is fitted with powerful permanent
Magnet, so that being inhaled into sedimentation basin from the metal flowed into hydraulic oil, so that welding slag or other iron filings be avoided to enter cylinder
In body, to damage to cylinder body, the reliability of servomotor is improved, and is equipped with the servomotor of titanium alloy, even if there are iron filings
It enters in cylinder body, the high rigidity of titanium alloy, the very big damage of cylinder body will not be caused.
Further, the side wall of the outer end of piston rod and B oil cylinder head is fitted with two sets of infrared range-measurement systems, A oil cylinder head,
The through-hole of B oil cylinder head is equipped with A branched hole and B branched hole, and A branched hole and B branched hole are equipped with A pressure sensor and B pressure passes
Sensor, infrared range-measurement system, A pressure sensor, B pressure sensor and servo motor are connect with master controller respectively, master controller
Also it is connected with light-emitting diode display and alarm.
In above-mentioned technical proposal, the infrared range-measurement system being equipped with can measure the flexible distance of piston rod, be stretched by piston rod
The distance of contracting can be calculated by master controller and lead leaf divergence, compared with the prior art, can more precisely control and lead
Leaf divergence, master controller send aperture numerical value to light-emitting diode display and show in light-emitting diode display；Pass through the A pressure being equipped with
The pressure signal that sensor and B pressure sensor measure sensor is transmitted to master controller, and master controller receives A pressure sensing
After device/B pressure sensor pressure signal, master controller judges whether pressure is normal, if P > 0.9P ˊ, P are the pressure measured
Numerical value, P ˊ are servomotor rated pressure, and master controller judges that hydraulic system pressure is abnormal, and master controller is sent out to light-emitting diode display
Pressurization pressure numerical value is simultaneously shown in the display, issues warning yellow to alarm；If P > P ˊ, master controller judge hydraulic system
Pressure is abnormal, and master controller sends pressure value to light-emitting diode display and shows in the display, issues to alarm red alert
Report；P≤0.9P ˊ, master controller judge that hydraulic system pressure is normal, and master controller sends pressure value to light-emitting diode display and shows
Show in the display, so as to the pressure value in real-time display system, and being capable of intelligent monitoring；It is adjusted by guide vane opening
After good, master controller sends locking signal, servo motor rotation to servo motor, so that gag lever post shifts to control ring, limit
Position bar blocks control ring, so that control ring be locked, so that guide vane keeps required aperture, opens when needing to change guide vane
Degree, master controller thinks that servo motor sends the order that unlocks, servo motor rotation, so that gag lever post leaves control ring, control
Ring rotates so as to adjust required aperture, locks control ring by gag lever post, so that locking control ring is relatively reliable.
The beneficial effects of the invention are as follows:
1,3 support bases have been mounted equidistant by the lateral wall in top cover, and have been equipped with support rod, support rod on support base
Servomotor is installed with being mounted between the fixed link for controlling top surface of ring, the rotation of control ring is controlled by servomotor, thus
Leaf divergence is led in control, and support base is set on top cover, fixed link is set to control top surface of ring, it is possible to reduce equipment occupies empty
Between；Along straight-tooth is equipped in control ring, cooperated by the straight-tooth on the straight-tooth and control ring on gag lever post, so that control ring is locked
It is fixed, so that the aperture when locking of control ring is more, the movement of gag lever post is controlled by servo motor, compared to hydraulic control
System, Serve Motor Control is more accurate, maintenance cost is few, occupy little space, reacts quicker；6 servomotors being equipped with, make
The adjusting for obtaining control ring is relatively reliable.
2, by the way that the diameter of circular groove is set as 0.8 times of A oil cylinder head and B oil cylinder head outer diameter, so that groove walls have
Enough intensity and cylinder barrel are fixedly mounted, and are equipped with dashpot in the circular groove bottom of A oil cylinder head, are equipped with one in the bottom of piston
Buffer head, in piston quickly into A oil cylinder head moving process, avoid piston and A oil cylinder head generate it is strong hit, buffer head it is outer
Diameter and dashpot difference in internal diameters are that 1~8mm can be determined according to the actual size of servomotor；The depth of dashpot is depth of groove
0.8~1 times, the diameter of dashpot is 0.2 times of A oil cylinder head outer diameter, so that dashpot has the appearance of certain storage hydraulic oil
Product, dashpot is too big, just will affect the intensity of A oil cylinder head.
3, by the way that the material of cylinder barrel is set as titanium alloy, titanium alloy have corrosion-resistant, intensity is high, it is heat-resisting it is good with low temperature properties,
It is affected by temperature that small, toughness is high, so that cylinder barrel intensity made of titanium alloy is higher, more durable, better reliability, and has very
The titanium alloy of high rigidity enables to the abrasion of cylinder barrel very small, and the sleeve of titanium alloy is arranged with outside piston rod so that cylinder barrel with
The abrasion of the better tightness of piston, sleeve and piston is smaller, and frictional force is lower；The branch of titanium alloy material is equipped in guide groove
Pushing out ring, piston rod are arranged with the sleeve of titanium alloy material outside, so that the sleeve of support ring and piston rod acts on, so that piston rod
Housing is more firm wear-resisting, and compared with the prior art, the physical life of the servomotor of this structure at least improves 50%.
4, connected respectively with A oil cylinder head, B oil cylinder head side wall by being equipped in the circular groove bottom of A oil cylinder head, B oil cylinder head
Logical " L " type through-hole, through-hole can install oil pipe, control the disengaging of hydraulic oil, thus control the position of piston rod with adjust with
The movable guide vane of control ring connection；By being equipped with a sedimentation basin in through-hole, and it is fitted with powerful permanent magnet, so that from liquid
The metal flowed into pressure oil is inhaled into sedimentation basin, to avoid welding slag or other iron filings from entering in cylinder body, thus to cylinder
Body damages, and improves the reliability of servomotor, and is equipped with the servomotor of titanium alloy, even if there is iron filings to enter in cylinder body,
The high rigidity of titanium alloy will not cause the very big damage of cylinder body.
Detailed description of the invention
Fig. 1 is top view of the invention；
Fig. 2 is partial schematic diagram of the invention；
Fig. 3 is servomotor structural schematic diagram of the invention；
Fig. 4 is servomotor structural schematic diagram of the invention.
It is marked in figure：1 it is control ring, 2 be support base, 3 be servomotor, 3.1 be A oil cylinder head, 3.2 is B oil cylinder head, 3.3
It is piston for cylinder barrel, 3.4,3.5 be guide ring, 3.6 be trapezoidal seal groove, 3.7 be guide groove, 3.8 be seal groove, 3.9 is slow
Jet-bedding, 3.10 be piston rod, 3.11 be buffer head, 3.12 be sleeve, 3.13 be through-hole, 3.14 be sedimentation basin, 4 be fixed link, 5
It is support rod for top cover, 6,7 is gag lever post.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing.
Embodiment one：
The adjustment device of Francis turbine as shown in Figure 1, Figure 2 and Figure 3, including control ring 1, support base 2, servomotor
3, A oil cylinder head 3.1, B oil cylinder head 3.2, cylinder barrel 3.3, piston 3.4, guide ring 3.5, trapezoidal seal groove 3.6, guide groove 3.7, close
Sealing groove 3.8, dashpot 3.9, piston rod 3.10, buffer head 3.11, sleeve 3.12, through-hole 3.13, sedimentation basin 3.14, fixed link 4,
Top cover 5, support rod 6 and gag lever post 7, the control ring 1 for controlling movable guide vane aperture are mounted on water-turbine top cover 5, top cover 5
Lateral wall 3 support bases 2 have been mounted equidistant, be symmetrically arranged with two vertical support rods 6 on each support base 2, control ring 1 is pushed up
Face is equipped with 6 uniformly distributed fixed links 4, and the both ends of servomotor 3 are rotatably connected on respectively on fixed link 4 and support rod 6；Control ring 1
Upper edge be uniformly provided with straight-tooth, be equipped with gag lever post 7 on three support bases 2, one end of gag lever post 7 is equipped with and edge in control ring 1
The straight-tooth end of the straight-tooth of straight-tooth cooperation, gag lever post 7 is installed towards the center of control ring 1, and gag lever post 7, which is equipped with to cooperate with gear, pacifies
The straight-tooth of dress, the gear are coupled with servo motor, and gag lever post 7 is equipped with limit sleeve 8, and limit sleeve 8 is fixedly mounted on branch
It supports on seat 2, micromatic setting is further respectively had on gag lever post 7 and limit sleeve 8, this micromatic setting can adjust gag lever post 7 and limit
The level angle of position set 8, so that gag lever post 7 can smoothly limit control ring 1.
Servomotor 3 includes：A oil cylinder head 3.1, B oil cylinder head 3.2, cylinder barrel 3.3 and piston rod 3.10, A oil cylinder head 3.1, B oil
The end face of cylinder head 3.2 is equipped with circular groove, and the diameter of circular groove is the 0.8 of A oil cylinder head 3.1 and 3.2 outer diameter of B oil cylinder head
Times, cylinder barrel 3.3 is installed, A oil cylinder head 3.1, B oil cylinder head 3.2 and cylinder barrel 3.3 form plunger shaft between two circular grooves；A oil cylinder head
3.1 circular groove bottom is equipped with dashpot 3.9, and the depth of the dashpot 3.9 is 0.8 times of circular groove depth, buffering
The diameter of slot 3.9 is 0.2 times of 3.1 outer diameter of A oil cylinder head；The centre bore that the bottom end of piston rod 3.10 passes through B oil cylinder head 3.2 is installed
There is piston 3.4, the bottom of piston 3.4 is equipped with a buffer head 3.11, and buffer head 3.11 is cylinder；The material that the cylinder barrel 3.3 is
Matter is titanium alloy；The cylindrical wall both ends of piston 3.4 are equipped with the guide ring 3.5 of titanium alloy material, set in the middle part of the cylindrical wall of piston 3.4
There is trapezoidal seal groove 3.6, ladder-shaped sealing ring is installed in trapezoidal seal groove 3.6；Titanium alloy is arranged with outside the piston rod 3.10
The sleeve 3.12 of material is equipped with sealing ring between piston rod 3.10 and sleeve 3.12；The support base 2 is " L " type, and support base 2 wraps
Including vertical arm and horizontal arm, vertical arm is mounted on the side of top cover 5, and horizontal arm is mounted on the top of vertical arm, and the two of vertical arm
Side is equipped with reinforcing rod one, and reinforcing rod two is equipped between vertical arm and horizontal arm；The inner wall of 3.2 centre bore of B oil cylinder head is set
There are two guide grooves 3.7 and seal groove 3.8, two guide grooves 3.7 are respectively arranged on the two sides of 3.2 centre bore of B oil cylinder head, guide groove 3.7
Between be equipped with seal groove 3.8, the support ring of titanium alloy material is equipped in guide groove 3.7, the end face of B oil cylinder head 3.2 is equipped with and work
The dustproof cover that stopper rod 3.10 is coupled；A oil cylinder head 3.1, B oil cylinder head 3.2 circular groove bottom be equipped with respectively with A oil cylinder head
3.1, the through-hole of 3.2 side wall of B oil cylinder head connection, the shape of through-hole are " L " type, and the longitudinal hole bottom of through-hole is equipped with a sedimentation basin,
The bottom of the sedimentation basin is equipped with powerful permanent magnet；The outer end of piston rod 3.10 and the side wall of B oil cylinder head 3.2 are fitted with
Two sets of infrared range-measurement systems, A oil cylinder head 3.1, B oil cylinder head 3.2 through-hole be equipped with A branched hole and B branched hole, A branched hole and B branch
Hole is equipped with A pressure sensor and B pressure sensor, infrared range-measurement system, A pressure sensor, B pressure sensor and servo motor
It is connect respectively with master controller, master controller is also connected with light-emitting diode display and alarm.
The infrared range-measurement system being equipped with can measure the flexible distance of piston rod 3.10, by piston rod 3.10 stretch away from
From can be calculated by master controller and lead leaf divergence, compared with the prior art, opening for guide vane can be more precisely controlled
Degree, master controller send aperture numerical value to light-emitting diode display and show in light-emitting diode display；Pass through the A pressure sensor being equipped with
The pressure signal for measuring sensor with B pressure sensor is transmitted to master controller, and master controller receives A pressure sensor/B pressure
After the pressure signal of force snesor, master controller judges whether pressure is normal, if P > 0.9P ˊ, P are the pressure value measured, P ˊ
For servomotor rated pressure, master controller judges that hydraulic system pressure is abnormal, and master controller sends number pressure to light-emitting diode display
It is worth and shows in the display, issues warning yellow to alarm；If P > P ˊ, master controller judge hydraulic system pressure not just
Often, master controller sends pressure value to light-emitting diode display and shows in the display, issues warning red to alarm；P≤
0.9P ˊ, master controller judge that hydraulic system pressure is normal, and master controller sends pressure value to light-emitting diode display and is shown in aobvious
Show in device, so as to the pressure value in real-time display system, and being capable of intelligent monitoring；After guide vane opening is adjusted,
Master controller sends locking signal, servo motor rotation to servo motor, so that gag lever post shifts to control ring, gag lever post will
Control ring is blocked, so that control ring be locked so that guide vane keep needed for aperture, when needing to change guide vane opening, master control
Device processed thinks that servo motor transmission unlocks order, servo motor rotation so that gag lever post leaves control ring, control ring rotation from
And aperture needed for adjusting, control ring is locked by gag lever post, so that locking control ring is relatively reliable.
Embodiment two：
The adjustment device of Francis turbine as shown in Figure 1, Figure 2 and shown in Fig. 4, including control ring 1, support base 2, servomotor
3, A oil cylinder head 3.1, B oil cylinder head 3.2, cylinder barrel 3.3, piston 3.4, guide ring 3.5, trapezoidal seal groove 3.6, guide groove 3.7, close
Sealing groove 3.8, dashpot 3.9, piston rod 3.10, buffer head 3.11, sleeve 3.12, through-hole 3.13, sedimentation basin 3.14, fixed link 4,
Top cover 5, support rod 6 and gag lever post 7, the control ring 1 for controlling movable guide vane aperture are mounted on water-turbine top cover 5, top cover 5
Lateral wall 3 support bases 2 have been mounted equidistant, be symmetrically arranged with two vertical support rods 6 on each support base 2, control ring 1 is pushed up
Face is equipped with 6 uniformly distributed fixed links 4, and the both ends of servomotor 3 are rotatably connected on respectively on fixed link 4 and support rod 6；Control ring 1
Upper edge be uniformly provided with straight-tooth, be equipped with gag lever post 7 on three support bases 2, one end of gag lever post 7 is equipped with and edge in control ring 1
The straight-tooth end of the straight-tooth of straight-tooth cooperation, gag lever post 7 is installed towards the center of control ring 1, and gag lever post 7, which is equipped with to cooperate with gear, pacifies
The straight-tooth of dress, the gear are coupled with servo motor, and gag lever post 7 is equipped with limit sleeve 8, and limit sleeve 8 is fixedly mounted on branch
Seat 2 is supportted, micromatic setting is further respectively had on upper limit bar 7 and limit sleeve 8, this micromatic setting can adjust gag lever post 7 and limit
The level angle of position set 8, so that gag lever post 7 can smoothly limit control ring 1.
Servomotor 3 includes：A oil cylinder head 3.1, B oil cylinder head 3.2, cylinder barrel 3.3 and piston rod 3.10, A oil cylinder head 3.1, B oil
The end face of cylinder head 3.2 is equipped with circular groove, and the diameter of circular groove is the 0.8 of A oil cylinder head 3.1 and 3.2 outer diameter of B oil cylinder head
Times, cylinder barrel 3.3 is installed, A oil cylinder head 3.1, B oil cylinder head 3.2 and cylinder barrel 3.3 form plunger shaft between two circular grooves；A oil cylinder head
3.1 circular groove bottom is equipped with dashpot 3.9, and the depth of the dashpot 3.9 is 0.8 times of circular groove depth, buffering
The diameter of slot 3.9 is 0.2 times of 3.1 outer diameter of A oil cylinder head；The centre bore that the bottom end of piston rod 3.10 passes through B oil cylinder head 3.2 is installed
There is piston 3.4, the bottom of piston 3.4 is equipped with a buffer head 3.11, and buffer head 3.11 is cylinder；The material that the cylinder barrel 3.3 is
Matter is titanium alloy；The cylindrical wall both ends of piston 3.4 are equipped with the guide ring 3.5 of titanium alloy material, set in the middle part of the cylindrical wall of piston 3.4
There are trapezoidal seal groove 3.6, trapezoidal seal groove
Ladder-shaped sealing ring is installed in 3.6；The sleeve 3.12 of titanium alloy material, piston are arranged with outside the piston rod 3.10
Sealing ring is equipped between bar 3.10 and sleeve 3.12；The support base 2 is " L " type, and support base 2 includes vertical arm and horizontal arm, is erected
Straight-arm is mounted on the side of top cover 5, and horizontal arm is mounted on the top of vertical arm, and the two sides of vertical arm are equipped with reinforcing rod one, erects
Reinforcing rod two is equipped between straight-arm and horizontal arm；The inner wall of 3.2 centre bore of B oil cylinder head is equipped with two guide grooves 3.7 and sealing
Slot 3.8, two guide grooves 3.7 are respectively arranged on the two sides of 3.2 centre bore of B oil cylinder head, are equipped with seal groove 3.8 between guide groove 3.7, lead
The support ring of titanium alloy material is equipped with into slot 3.7, the end face of B oil cylinder head 3.2 is equipped with prevents with what piston rod 3.10 was coupled
Dirt lid；A oil cylinder head 3.1, B oil cylinder head 3.2 circular groove bottom be equipped with respectively with A oil cylinder head 3.1,3.2 side wall of B oil cylinder head connect
Logical through-hole, the shape of through-hole are " L " type, and the longitudinal hole bottom of through-hole is equipped with a sedimentation basin, and the inner wall of dashpot 3.9 offers
One rectangular channel, rectangular channel is interior to be equipped with powerful permanent magnet, dashpot（3.9）The permanent magnetic iron that inner wall is equipped with is at a distance from sedimentation basin
Most short setting.
The outer end of piston rod 3.10 and the side wall of B oil cylinder head 3.2 are fitted with two sets of infrared range-measurement systems, A oil cylinder head
3.1, the through-hole of B oil cylinder head 3.2 is equipped with A branched hole and B branched hole, and A branched hole and B branched hole are equipped with A pressure sensor and B
Pressure sensor, infrared range-measurement system, A pressure sensor, B pressure sensor and servo motor are connect with master controller respectively, main
Controller is also connected with light-emitting diode display and alarm.
The infrared range-measurement system being equipped with can measure the flexible distance of piston rod 3.10, by piston rod 3.10 stretch away from
From can be calculated by master controller and lead leaf divergence, compared with the prior art, opening for guide vane can be more precisely controlled
Degree, master controller send aperture numerical value to light-emitting diode display and show in light-emitting diode display；Pass through the A pressure sensor being equipped with
The pressure signal for measuring sensor with B pressure sensor is transmitted to master controller, and master controller receives A pressure sensor/B pressure
After the pressure signal of force snesor, master controller judges whether pressure is normal, if P > 0.9P ˊ, P are the pressure value measured, P ˊ
For servomotor rated pressure, master controller judges that hydraulic system pressure is abnormal, and master controller sends number pressure to light-emitting diode display
It is worth and shows in the display, issues warning yellow to alarm；If P > P ˊ, master controller judge hydraulic system pressure not just
Often, master controller sends pressure value to light-emitting diode display and shows in the display, issues warning red to alarm；P≤
0.9P ˊ, master controller judge that hydraulic system pressure is normal, and master controller sends pressure value to light-emitting diode display and is shown in aobvious
Show in device, so as to the pressure value in real-time display system, and being capable of intelligent monitoring；After guide vane opening is adjusted,
Master controller sends locking signal, servo motor rotation to servo motor, so that gag lever post shifts to control ring, gag lever post will
Control ring is blocked, so that control ring be locked so that guide vane keep needed for aperture, when needing to change guide vane opening, master control
Device processed thinks that servo motor transmission unlocks order, servo motor rotation so that gag lever post leaves control ring, control ring rotation from
And aperture needed for adjusting, control ring is locked by gag lever post, so that locking control ring is relatively reliable.
Titanium alloy in embodiment one and embodiment two is Ti-6Al-4V or Ti-5Al-2.5Sn.
3 support bases 2 have been mounted equidistant in the lateral wall of top cover 5, and have been equipped with support rod 6, support rod 6 on support base 2
Be mounted on 1 top surface of control ring fixed link 4 between servomotor 3 is installed, the rotation of control ring 1 is controlled by servomotor 3,
To which leaf divergence is led in control, support base 2 is set on top cover 5, fixed link 4 is set to 1 top surface of control ring, it is possible to reduce equipment
Occupied space；Along straight-tooth is equipped in control ring 1, cooperated by the straight-tooth on gag lever post 7 and the straight-tooth in control ring 1, so that
Control ring 1 is locked, so that the aperture when locking of control ring 1 is more, the shifting of gag lever post 7 is controlled by servo motor
Dynamic, compared to hydraulic control, Serve Motor Control is more accurate, maintenance cost is few, occupy little space, reacts quicker；If
6 servomotors 3 having, so that the adjusting of control ring 2 is relatively reliable.
Claims (7)
1. a kind of adjustment device of Francis turbine, which is characterized in that including：Control ring（1）, support base（2）And servomotor
（3）, for controlling the control ring of movable guide vane aperture（1）It is mounted on water-turbine top cover（5）On, top cover（5）Lateral wall it is equidistant
3 support bases are installed（2）, each support base（2）On be symmetrically arranged with two vertical support rods（6）, control ring（1）Top surface is set
There are 6 uniformly distributed fixed links（4）, servomotor（3）Both ends be rotatably connected on fixed link respectively（4）With support rod（6）On；Control
Ring（1）Upper edge be uniformly provided with straight-tooth, three support bases（2）On be equipped with gag lever post（7）, gag lever post（7）One end be equipped with
Control ring（1）On along straight-tooth cooperation straight-tooth, gag lever post（7）Straight-tooth end towards control ring（1）Center installation, gag lever post
（7）It is equipped with the straight-tooth being coupled with gear, the gear is coupled with servo motor, gag lever post（7）It is equipped with limit
Set（8）, limit sleeve（8）It is fixedly mounted on support base（2）On；The support base（2）For " L " type, support base（2）Including vertical arm
With horizontal arm, vertical arm is mounted on top cover（5）Side, horizontal arm is mounted on the top of vertical arm, the two sides installation of vertical arm
There is reinforcing rod one, reinforcing rod two is equipped between vertical arm and horizontal arm；The servomotor（3）Including：A oil cylinder head（3.1）, B oil
Cylinder head（3.2）, cylinder barrel（3.3）And piston rod（3.10）, A oil cylinder head（3.1）, B oil cylinder head（3.2）End face be equipped with it is round recessed
Slot, the diameter of circular groove are A oil cylinder head（3.1）With B oil cylinder head（3.2）0.8 times of outer diameter, A oil cylinder head and B oil cylinder head
Outer diameter is equal, is equipped with cylinder barrel between two circular grooves（3.3）, A oil cylinder head（3.1）, B oil cylinder head（3.2）And cylinder barrel（3.3）It is formed
Plunger shaft.
2. the adjustment device of Francis turbine as described in claim 1, which is characterized in that A oil cylinder head（3.1）Circle it is recessed
Trench bottom is equipped with dashpot（3.9）, the dashpot（3.9）Depth be 0.8~1 times of circular groove depth, dashpot
（3.9）Diameter be A oil cylinder head（3.1）0.2 times of outer diameter；Piston rod（3.10）Bottom end pass through B oil cylinder head（3.2）Center
Hole is equipped with piston（3.4）, piston（3.4）Bottom be equipped with a buffer head（3.11）, buffer head（3.11）For cylinder.
3. the adjustment device of Francis turbine as described in claim 1, which is characterized in that the cylinder barrel（3.3）Material
For titanium alloy；Piston（3.4）Cylindrical wall both ends be equipped with titanium alloy material guide ring（3.5）, piston（3.4）Cylindrical wall in
Portion is equipped with trapezoidal seal groove（3.6）, trapezoidal seal groove（3.6）Ladder-shaped sealing ring is inside installed.
4. the adjustment device of Francis turbine as described in claim 1, which is characterized in that the piston rod（3.10）Housing
Sleeve equipped with titanium alloy material（3.12）, piston rod（3.10）With sleeve（3.12）Between be equipped with sealing ring.
5. the adjustment device of Francis turbine as described in claim 1, which is characterized in that the B oil cylinder head（3.2）Center
The inner wall in hole is equipped with two guide grooves（3.7）And seal groove（3.8）, two guide grooves（3.7）It is respectively arranged on B oil cylinder head（3.2）Center
The two sides in hole, guide groove（3.7）Between be equipped with seal groove（3.8）, guide groove（3.7）The interior support ring equipped with titanium alloy material, B
Oil cylinder head（3.2）End face be equipped with and piston rod（3.10）The dustproof cover being coupled.
6. the adjustment device of Francis turbine as claimed in claim 2, which is characterized in that A oil cylinder head（3.1）, B oil cylinder head
（3.2）Circular groove bottom be equipped with respectively with A oil cylinder head（3.1）, B oil cylinder head（3.2）The through-hole of side wall connection, the shape of through-hole
Shape is " L " type, and the longitudinal hole bottom of through-hole is equipped with a sedimentation basin, the dashpot（3.9）Inner wall be equipped with powerful permanent magnet,
Dashpot（3.9）The permanent magnetic iron that inner wall is equipped with most short setting at a distance from sedimentation basin.
7. the control system of the adjustment device using Francis turbine as claimed in any one of claims 1 to 6, feature exist
In piston rod（3.10）Outer end and B oil cylinder head（3.2）Side wall be fitted with two sets of infrared range-measurement systems, A oil cylinder head
（3.1）, B oil cylinder head（3.2）Through-hole be equipped with A branched hole and B branched hole, A branched hole and B branched hole are equipped with A pressure sensing
Device and B pressure sensor, infrared range-measurement system, A pressure sensor, B pressure sensor and servo motor connect with master controller respectively
It connects, master controller is also connected with light-emitting diode display and alarm.
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| CN201610420226.6A CN105927453B (en) | 2016-06-16 | 2016-06-16 | A kind of adjustment device of Francis turbine |
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| CN201610420226.6A CN105927453B (en) | 2016-06-16 | 2016-06-16 | A kind of adjustment device of Francis turbine |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7071578B1 (en) * | 2002-01-10 | 2006-07-04 | Mitsubishi Heavy Industries, Ltd. | Wind turbine provided with a controller for adjusting active annular plane area and the operating method thereof |
| CN103511173A (en) * | 2013-09-24 | 2014-01-15 | 东方电气集团东方电机有限公司 | Water turbine provided with four servomotors on top cover |
| CN204003235U (en) * | 2014-07-03 | 2014-12-10 | 杭州三汇水电设备有限公司 | New type hydraulic turbine stator shutoff device |
| CN206054161U (en) * | 2016-06-16 | 2017-03-29 | 成都德善能科技有限公司 | A kind of adjusting apparatus and its control system of Francis turbine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270538A (en) * | 1995-03-31 | 1996-10-15 | Hitachi Ltd | Water flow control device for water turbine |
-
2016
- 2016-06-16 CN CN201610420226.6A patent/CN105927453B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7071578B1 (en) * | 2002-01-10 | 2006-07-04 | Mitsubishi Heavy Industries, Ltd. | Wind turbine provided with a controller for adjusting active annular plane area and the operating method thereof |
| CN103511173A (en) * | 2013-09-24 | 2014-01-15 | 东方电气集团东方电机有限公司 | Water turbine provided with four servomotors on top cover |
| CN204003235U (en) * | 2014-07-03 | 2014-12-10 | 杭州三汇水电设备有限公司 | New type hydraulic turbine stator shutoff device |
| CN206054161U (en) * | 2016-06-16 | 2017-03-29 | 成都德善能科技有限公司 | A kind of adjusting apparatus and its control system of Francis turbine |
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| CN105927453A (en) | 2016-09-07 |
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