CN207513728U - A kind of wicket gate seal device of tubular turbine - Google Patents
A kind of wicket gate seal device of tubular turbine Download PDFInfo
- Publication number
- CN207513728U CN207513728U CN201721288493.9U CN201721288493U CN207513728U CN 207513728 U CN207513728 U CN 207513728U CN 201721288493 U CN201721288493 U CN 201721288493U CN 207513728 U CN207513728 U CN 207513728U
- Authority
- CN
- China
- Prior art keywords
- guide vane
- seal
- sealing
- sealing ring
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a kind of wicket gate seal devices of tubular turbine, including movable guide vane, guide vane lever, guide vane sleeve, outer gate barrel, seal ring set, wherein, the setting of guide vane lever and guide vane sleeve and guide vane coaxial line, and set along the axis direction sequence of guide vane；Guide vane sleeve is mounted on the peripheral surface of outer gate barrel, and the entirety being integrally formed with guide vane coaxial line, seal ring set, is located between outer gate barrel and guide vane, the arrangement sealed with the circumferential lateral surface of guide vane teunnion；With this, by the seal ring set being made of one piece, have easy for installation, seal compression deflection is big, and sealing force is high, and reliability is high, meanwhile, it is capable in the case where meeting wicket gate seal while realize the thrust function of guide vane.
Description
Technical field
The utility model is related to the wicket gate seal mechanisms of the hydraulic turbine, are to be related to a kind of leading for tubular turbine specifically
Leaf sealing device belongs to hydraulic turbine manufacturing field.
Background technology
Wicket gate seal is the important component of bulb-type hydraulic generating set safe operation, and the reliability of sealing device work is straight
Connecing influences the safe operation of unit.Wicket gate seal is generally sealed using O-ring or Yx in guide mechanism in flow-through turbine, is led
The adjustment of the upper and lower end clearance of leaf is to make the adjustment mat thickness of guide vane sleeve by matching to realize, is adopted the structure
Sealing device, installation and operation adjustment control is difficult, while is easily damaged in turbine-generator units operational process, and both
It is serious there are leak in seal form actual use, since leak is serious last until corrosion guide vane lever, connecting rod etc., it is last until
It replaces, so as to shorten the service life of the guide vane of water turbine set, needs to be replaced frequently, influence unit safety normal operation.No
But the maintenance workload and operating cost of turbine-generator units operation are increased, will also cause larger electric quantity loss.
Improved structure type is proposed for the operating oil line apparatus structure of tubular turbine in the prior art, but also
There are problems that easy leak, difficult sealing kind.Patent No. 201310756131.8, a kind of entitled tubular turbine guide vane are close
In the patent of encapsulation method, a kind of tubular turbine wicket gate seal structure is provided, guide vane lever, guide blade sleeve including fixed setting
Cylinder, with flange, is equipped with rectangle wicket gate seal circle, although to a certain extent will be original with outer between guide vane sleeve and guide vane teunnion
" Yx " sealing ring or " O " type ring structure are changed to novel axis rectangle wicket gate seal circle, reduce water leakage, improve
Some defects of leak in old-fashioned structure, still, at runtime, guide vane teunnion adjusted machine flow to tubular turbine in rotation
In the process, relative motion is generated with the internal diameter of sealing ring, easily occur bad seals in installation process or occurred local close
Seal sideslip, leads to seal failure, guide vane leak, corrosion guide vane guide sleeve and outer gate barrel occurs, influences the equipment below unit
With cable, meanwhile, using rectangle wicket gate seal circle, its is complicated, high to the positioning requirements in axial direction in installation process, from
And it is difficult that subsequent maintenance is caused to be replaced.
Therefore, there is an urgent need for one kind, have easy for installation, sealing reliability height, can be in the case where meeting wicket gate seal, together
The thrust of Shi Shixian guide vanes, the wicket gate seal structure of tubular turbine.
Invention content
In view of the above-mentioned problems existing in the prior art, the purpose of this utility model is to provide a kind of leading for tubular turbine
Leaf sealing structure in the case where meeting wicket gate seal while can realize the thrust of guide vane, have easy for installation, seal compression
Deflection is big, and sealing force is high, reliability is high.
For achieving the above object, the technical solution adopted in the utility model is as follows：
A kind of wicket gate seal device of tubular turbine, including movable guide vane, guide vane lever, guide vane sleeve, outer gate barrel,
Seal ring set, wherein, the setting of guide vane lever and guide vane sleeve and guide vane coaxial line, and set along the axis direction sequence of guide vane；
Guide vane sleeve is mounted on the peripheral surface of outer gate barrel, and the entirety being integrally formed with guide vane coaxial line, seal ring set, sandwiched
Between outer gate barrel and guide vane, the arrangement with the circumferential lateral surface sealing of guide vane；With this, pass through the sealing ring being made of one piece
Set, has easy for installation, and seal compression deflection is big, and sealing force is high, and reliability is high, can be in the case where meeting wicket gate seal
The thrust of guide vane is realized simultaneously.
Preferably, seal ring set removably connects into a sealing entirety with guide vane sleeve, in guide vane sleeve and guide vane
Between build Packed gap, the seal clearance formed together with guide vane sleeve by seal ring set, in the outer surface of guide vane
The clearance seal to block water together is formed, so as to enhance the reliability of sealing.
Preferably, for the convenience of installation and replacement, seal ring set is fastened by bolts integrally with guide vane sleeve, and altogether
The setting of movement with this, improves the efficiency of entire wicket gate seal component installation and maintenance so that installation, dismounting are more convenient.
Preferably, in order to ensure the reliability of sealing, seal ring set includes seal joint, the first sealing ring and the second sealing
Circle, wherein, the first sealing ring is embedded in the peripheral side of seal joint, is folded between seal joint and outer gate barrel；Second is close
Seal is embedded in the inner circumferential side of seal joint, is folded between seal joint and movable guide vane；By in seal joint with matching outside
The first sealing ring set between water ring, can be good at ensuring the sealing between seal joint and movable guide vane, equally, pass through
The second sealing ring being folded between movable guide vane and seal joint so that the sealing between movable guide vane and seal joint is more
Reliably.
Preferably, the first sealing ring is " O " type sealing ring, with this, promoted with the outer gate barrel of seal joint static seal it
Between seal.
Preferably, " X " the type sealing ring of the second sealing ring for the self-tightening sealing with dual layer sealing effect, " X " type
The cross sectional shape of sealing ring concaves for four sides, and intersection forms the quadrangle shape of wedge angle each other on both sides；With this, formation has
The self-tightening sealing structure of dual layer sealing effect, pressure of the power depending on structural system in the axial direction, with structural system pressure
Rising, the compressive deformation of " X " type sealing ring can increase, and total sealing force is with improve, so as to form more structurally sound sealing.
Preferably, described " X " type sealing ring forms lubrication cavity between its sealing lip, so as to be hindered with smaller friction
Power, improves the reliability of sealing, while extends the service life of sealing.
Compared with prior art, the wicket gate seal device of a kind of tubular turbine provided by the utility model, passes through one
The body formed seal ring set formed, has easy for installation, and seal compression deflection is big, and sealing force is high, and reliability is high, can be full
In the case of sufficient wicket gate seal, while the thrust of guide vane is realized, by between the sealing that is formed together with seal ring set and guide vane sleeve
Gap forms the clearance seal to block water together in the outer surface of guide vane, so as to enhance the reliability of sealing；In seal joint with matching outside
" O " type sealing ring is folded between water ring, ensures the reliability of static seal between seal joint and outer gate barrel well, is led to
" X " the type sealing ring set between seal joint and movable guide vane is crossed, since its interface is on-circular cross-section, there is double-layer seal
The self-tightening sealing structure of effect can reduce the abrasion of sealing element, between its sealing lip to avoid rolling is generated when moving back and forth
Lubrication cavity is formed, so as to smaller frictional resistance, improve the reliability of sealing, while extend the service life of sealing.
Description of the drawings
Fig. 1 is the schematic diagram of the wicket gate seal device of tubular turbine provided by the utility model；
Fig. 2 is the partial enlarged view of the wicket gate seal device of tubular turbine provided by the utility model.
Specific embodiment
The utility model is made further in detail, completely to illustrate with reference to embodiment and attached drawing.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made in opposite description to space used herein above.
As depicted in figs. 1 and 2, the structural representation for the wicket gate seal device of tubular turbine provided by the utility model
Figure, the wicket gate seal device include movable guide vane 10, guide vane lever 20, guide vane sleeve 30, outer gate barrel 40, seal ring set 50,
In, the setting of guide vane lever 20 and guide vane sleeve 30 and 10 coaxial line of guide vane, and set along the axis direction sequence of guide vane 10；Match outside
40 ring set of water ring is in the peripheral surface of guide vane sleeve 30, and line coaxially therewith；The entirety that seal ring set 50 is integrally formed, is folded in
Between outer gate barrel 40 and guide vane 10, the arrangement with the circumferential lateral surface sealing of guide vane 10, and removably connect with guide vane sleeve 30
It is whole to be connected into a sealing, Packed gap is built between guide vane sleeve 30 and guide vane 10；With this, by be integrally formed and
Into seal ring set, have easy for installation, seal compression deflection is big, and sealing force is high, and reliability is high, can be to meet guide vane close
The thrust of guide vane, the seal clearance formed together with guide vane sleeve by seal ring set, in guide vane are realized in the case of envelope simultaneously
Outer surface form the clearance seal that blocks water together, so as to enhance the reliability of sealing.
It is preferably carried out in mode in the utility model, for the convenience of installation and replacement, seal ring set 50 and guide blade sleeve
Cylinder 30 is fastened by bolts integrally, and the setting moved altogether, with this, improves entire wicket gate seal component installation and maintenance
Efficiency so that installation, dismounting it is more convenient.
Further, in order to ensure the reliability of sealing, it is preferable that as described in Figure 2, seal ring set 50 includes seal joint
51st, the first sealing ring 52 and the second sealing ring 53, wherein, the first sealing ring 52 is embedded in the peripheral side of seal joint 51, sandwiched
Between seal joint 51 and outer gate barrel 40；Second sealing ring 53 is embedded in the inner circumferential side of seal joint 51, is folded in sealing
It,, can by the first sealing ring set between seal joint and outer gate barrel with this between pressure ring 51 and movable guide vane 10
The sealing between seal joint and movable guide vane is ensured well, equally, by being folded between movable guide vane and seal joint
The second sealing ring so that the sealing between movable guide vane and seal joint is relatively reliable.
Preferably, the first sealing ring 52 is " O " type sealing ring, with this, promotes the outer gate barrel with seal joint static seal
Between seal；Further, the second sealing ring 53 is sealed for " X " type of the self-tightening sealing with dual layer sealing effect
Circle, should the cross sectional shape of " X " type sealing ring concave for four sides, intersection forms the quadrangle shape of wedge angle each other on both sides.With
This, forms the self-tightening sealing structure with dual layer sealing effect, pressure of the power depending on structural system in the axial direction, with knot
The rising of construction system pressure, the compressive deformation of " X " type sealing ring can increase, and total sealing force is with improve, so as to be formed more
Reliable sealing；Preferably, it is somebody's turn to do " X " type sealing ring and lubrication cavity is formed between its sealing lip, so as to smaller friction
Resistance, improves the reliability of sealing, while extends the service life of sealing.
In conclusion due to being folded with " O " type sealing ring between seal joint and outer gate barrel, ensure well close
The reliability of static seal between pressure ring and outer gate barrel is sealed, it is close by " X " type set between seal joint and movable guide vane
Seal since its interface is on-circular cross-section, has the self-tightening sealing structure of dual layer sealing effect, can be produced to avoid when moving back and forth
It is raw to roll, the abrasion of sealing element is reduced, lubrication cavity is formed between its sealing lip, so as to smaller frictional resistance, carry
The reliability of high sealing, while extend the service life of sealing.
The wicket gate seal device of tubular turbine provided by the utility model has following excellent relative to the prior art
Gesture：By the seal ring set being made of one piece, have easy for installation, seal compression deflection is big, and sealing force is high, reliability
Height in the case where meeting wicket gate seal while can realize the thrust of guide vane, by seal ring set together with guide vane sleeve shape
Into seal clearance, the clearance seal that blocks water together is formed in the outer surface of guide vane, so as to enhance the reliability of sealing；It is sealing
" O " type sealing ring is folded between pressure ring and outer gate barrel, ensures static seal between seal joint and outer gate barrel well
Reliability, by " X " the type sealing ring set between seal joint and movable guide vane, since its interface is on-circular cross-section,
Self-tightening sealing structure with dual layer sealing effect can reduce the abrasion of sealing element to avoid rolling is generated when moving back and forth,
Lubrication cavity is formed between its sealing lip, so as to smaller frictional resistance, improve the reliability of sealing, while extend sealing
Service life.
It is it is necessary to described herein finally：Above example is served only for making the technical solution of the utility model further
It explains in detail, it is impossible to be interpreted as the limitation to scope of protection of the utility model, those skilled in the art is new according to this practicality
Some nonessential modifications and adaptations that the above of type is made belong to the scope of protection of the utility model.
Claims (7)
1. a kind of wicket gate seal device of tubular turbine, including movable guide vane (10), guide vane lever (20), guide vane sleeve
(30), outer gate barrel (40), seal ring set (50), wherein, guide vane lever (20) and guide vane sleeve (30) and guide vane (10) coaxial line
Setting, and along guide vane (10) axis direction sequence set；Guide vane sleeve (30) is fixed on the peripheral surface of outer gate barrel (40)
On, and with guide vane (10) coaxial line, which is characterized in that the entirety that seal ring set (50) is integrally formed is folded in outer gate barrel
(40) between guide vane (10), the arrangement with the circumferential lateral surface sealing of guide vane (10).
2. wicket gate seal device according to claim 1, which is characterized in that seal ring set (50) can with guide vane sleeve (30)
Dismounting connects into a sealing entirety, and Packed gap is built between guide vane sleeve (30) and guide vane (10).
3. wicket gate seal device according to claim 2, which is characterized in that seal ring set (50) is logical with guide vane sleeve (30)
It crosses bolt to be fastened together, and the setting moved altogether.
4. wicket gate seal device according to any one of claims 1 to 3, which is characterized in that seal ring set (50) is including close
Pressure ring (51), the first sealing ring (52) and the second sealing ring (53) are sealed, wherein, the first sealing ring (52) is embedded in seal joint
(51) peripheral side is folded between seal joint (51) and outer gate barrel (40)；Second sealing ring (53) is embedded in sealing pressure
The inner circumferential side of ring (51) is folded between seal joint (51) and movable guide vane (10).
5. wicket gate seal device according to claim 4, which is characterized in that the first sealing ring (52) is " O " type sealing ring.
6. wicket gate seal device according to claim 4, which is characterized in that the second sealing ring (53) is with double-layer seal
" X " type sealing ring of the self-tightening sealing of effect, the cross sectional shape of " X " the type sealing ring concave for four sides, and both sides are handed over each other
The quadrangle shape of wedge angle is formed at remittance.
7. wicket gate seal device according to claim 6, which is characterized in that " X " the type sealing ring its sealing lip it
Between formed lubrication cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288493.9U CN207513728U (en) | 2017-09-30 | 2017-09-30 | A kind of wicket gate seal device of tubular turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288493.9U CN207513728U (en) | 2017-09-30 | 2017-09-30 | A kind of wicket gate seal device of tubular turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513728U true CN207513728U (en) | 2018-06-19 |
Family
ID=62532771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721288493.9U Active CN207513728U (en) | 2017-09-30 | 2017-09-30 | A kind of wicket gate seal device of tubular turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207513728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803202A (en) * | 2021-08-09 | 2021-12-17 | 广西卓洁电力工程检修有限公司 | Guide vane shaft head water leakage collecting device of hydroelectric generating set |
-
2017
- 2017-09-30 CN CN201721288493.9U patent/CN207513728U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113803202A (en) * | 2021-08-09 | 2021-12-17 | 广西卓洁电力工程检修有限公司 | Guide vane shaft head water leakage collecting device of hydroelectric generating set |
| CN113803202B (en) * | 2021-08-09 | 2024-05-14 | 广西卓洁电力工程检修有限公司 | Water leakage collecting device for guide vane shaft head of hydroelectric generating set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201636338U (en) | Check valve for large-caliber power plant | |
| CN109281889A (en) | A kind of combination sealing arrangement and hydraulic cylinder for hydraulic cylinder piston | |
| CN207513728U (en) | A kind of wicket gate seal device of tubular turbine | |
| CN108105420A (en) | A kind of high-pressure hydraulic pump discharge control valve | |
| CN201259012Y (en) | Automatic seal stop valve | |
| CN106979187B (en) | A kind of hydraulic cylinder being used to support | |
| CN203441736U (en) | Self-aligning structure for plunger and crosshead of reciprocating pump | |
| CN207245650U (en) | High-pressure mechanical seal oil-well rig floating punch pipe assembly | |
| CN104295762B (en) | Low-torque enforced sealing type fixing ball valve | |
| CN203809697U (en) | Nuclear-grade small-caliber manual corrugated pipe stop valve | |
| CN2916113Y (en) | Polish rod sealing device for oil pumping well head | |
| CN202545182U (en) | Dry gas seal for synthesis gas compressor | |
| CN202300919U (en) | Guide piston structure | |
| CN209339895U (en) | Adjustable offset pumping unit rod sealing device | |
| CN106917597A (en) | Oil-field oil pumper packing box | |
| CN103244699B (en) | Ultra-high pressure high flow topping up or pouring valve | |
| CN201827393U (en) | Special double-seal hydraulic control butterfly valve for hydroelectricity | |
| CN208252810U (en) | A kind of cam flexure regulating valve suitable for High Pressure Difference operating condition containing solid particle | |
| CN203640912U (en) | Bulb tubular unit rotary wheel oil-free paddle adjusting type operating device | |
| CN103388467B (en) | Bidirectional displacement deflection correction type sucker rod sealer | |
| CN207245918U (en) | A kind of operating oil line device for tubular turbine | |
| CN103511173A (en) | Water turbine provided with four servomotors on top cover | |
| CN207513729U (en) | A kind of bulb through-flow turbine group | |
| CN110259397A (en) | A kind of mechanical sealing washing pipe assembly | |
| CN213360549U (en) | Novel wear-resisting pump seal structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |