CN205859163U - A kind of hydraulic turbine disc drainage valve - Google Patents
A kind of hydraulic turbine disc drainage valve Download PDFInfo
- Publication number
- CN205859163U CN205859163U CN201620753355.2U CN201620753355U CN205859163U CN 205859163 U CN205859163 U CN 205859163U CN 201620753355 U CN201620753355 U CN 201620753355U CN 205859163 U CN205859163 U CN 205859163U
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- CN
- China
- Prior art keywords
- spool
- connecting rod
- sealing ring
- hydraulic turbine
- turbine disc
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Abstract
A kind of hydraulic turbine disc drainage valve, including valve seat (1)；The spool (3) being connected is opened and closed with described valve seat (1)；It is connected with described spool (3) for operating the operating mechanism that described spool (3) opens and closes；Spool (3) near with described valve seat (1) holds the sealing ring (4) being connected；The sealing shroud (2) being connected with described spool (3) and match with described sealing ring (4)；The endoporus of described sealing ring (4) is tapered, and the periphery of described sealing shroud (2) is the most tapered, and the endoporus of described sealing ring (4) coordinates with the periphery of described sealing shroud (2).The technical scheme that this utility model provides, uses tapered structure to seal and steering capability is good, and spool is difficult to jam in closing process, and spool tapered structure in closing process has guide effect, makes spool be prone to location；Its structure is ingenious, easily manufactured；Drain valve opens and closes effective, can reduce power station maintenance duration, cost-effective, improves economy.
Description
Technical field
This utility model relates to turbine technology field, especially relates to a kind of row being applied to spiral case, tail water
The hydraulic turbine disc drainage valve of water.
Background technology
Factory's inner water drainage system in power station is the necessary facility of power station maintenance.Unit maintenance displacement depends on spiral case, tail
Water accumulating volume in water pipe and pressure pipeline and the water leakage of upstream and downstream bulkhead.In order to make the big of spiral case and pressure pipeline
Amount hydrops can free-draining as best one can, set drain pipe and water discharging valve communicates with draft tube at spiral case or pressure pipeline lowest part,
Making flows automatically higher than the hydrops of downstream tailwater level drains, and institute's remaining water is got rid of with water pump again.During the maintenance of power station, expand at draft tube
The bottom dissipating section sets the drain pipe and water discharging valve communicated with sump, makes the hydrops of the bottom of draft tube discharge.Hydroelectric Plant
Inner water drainage system is divided into unit maintenance draining and two parts of seepage from powerhouse draining.Drainage for overhaul mode can be divided into two classes, a class
For direct draining, water pump is directly drained by drawing water in draft tube；Another kind of for indirect drainage, the hydrops that need to get rid of first flows through centre
Gallery sump, is drained by water pump the most again.Two class drainage for overhaul modes, the most all use manual operation.Between maintenance uses
Run in water time, regulate the height between spool and valve seat by the handwheel of drain valve, it is achieved the keying of drain valve.
Disc drainage valve traditional as shown in Fig. 1, including valve body a, O RunddichtringO b, valve c, saddle d, handwheel e, on
Drive link f, support g, base h, outer tube i, regulate rotation set nut j, underdrive bar k.Tradition is used between its base h and support g
Packing_seal, sealing is poor；Use plate seal groove to add sealing ring between valve body a and valve c to seal, poor structural reliability,
Easily cause foreign body from blocking, easily cause drain valve and close difficulty；Handwheel e uses ironcasting integrative-structure interchangeability poor；Traditional
Disc drainage valve is in installation, guidance quality difference installation difficulty, it is impossible to adjust location exactly.Spiral case, draft tube are examined in power station
Pass through drive link f and the lifting of underdrive bar k in handwheel e regulation when repairing draining, complete the keying of drain valve, easily by foreign body from blocking
Cause the drainage for overhaul time to waste, and it is poor to guide operability, it is impossible to close valve exactly.Particularly to Large Copacity high concentration of sediment
Power station, this traditional disc drainage valve work surface is uneven, and sealing surface has the entrance of silt foreign material to be easily caused card, eccentric wear, property partially
Can be unstable, cause time serious sealing unsuccessfully, water leakage increases, it is impossible to the normal hydrops got rid of in unit, is delayed power station maintenance
Duration, cause electricity loss of energy, bring bigger economic loss.
CN 202441975 U discloses a kind of worm-gear type manual dish-type drain valve, band be vertically installed on support and
The valve shaft that flashboard is mechanically coupled and fixes, for the worm-gear type manual-operating mechanism driving valve shaft to lift；Worm-gear type manual operation
Mechanism is made up of upper bed-plate, lower bottom base, worm gear, bearing, worm screw, handle；Lower bottom base is mechanically anchored on support, upper bed-plate and under
Base faces, and is bolted on together；Worm gear is fixed on upper bed-plate and lower bottom base by bearing, worm and worm wheel phase
Engagement, valve shaft through worm gear center and is threaded connection with worm gear；Handle and Hexagonal jacket and worm screw outer-hexagonal spiral shell in worm screw
Head activity connects.Though its technical scheme to some extent solves the tradition unhandy technical problem of disc drainage valve, but
Sealing to tradition disc drainage valve, the defect that guiding aspect exists does not carries out useful improvement.
Utility model content
In order to overcome the defect of prior art, this utility model provides a kind of novel in design, and structure is ingenious, adapts to silt miscellaneous
The hydraulic turbine disc drainage valve that the place that matter content is big, steering capability requirement is high uses.
In order to solve above-mentioned technical problem, this utility model provides a kind of hydraulic turbine disc drainage valve, including valve seat；With institute
State valve seat and open and close the spool connected；It is connected with described spool for operating the operating mechanism that described spool opens and closes；Near with described valve seat
The sealing ring that spool end connects；The sealing shroud being connected with described spool and match with described sealing ring；Described sealing ring interior
Hole is tapered, and the periphery of described sealing shroud is the most tapered, the endoporus of described sealing ring and the periphery fitted seal of described sealing shroud.
As improving technical scheme further, the hydraulic turbine disc drainage valve that this utility model provides, also have with described
The leading truck that the nearly valve seat end of spool connects.
As improving technical scheme further, the hydraulic turbine disc drainage valve that this utility model provides, described operating mechanism
The suspension rod being connected away from valve seat end with described spool including the first end；The joint shaft that first end is connected with the other end of described suspension rod
Hold；The connecting rod that first end is connected with the other end of described oscillating bearing；The shank of bolt being connected with the other end of described connecting rod；With concrete
The first connecting rod set that basis connects and is connected with described rod slide；The support being connected with described concrete basis；With described support even
The second connecting rod set connect and be connected with described rod slide；The nut being connected with described support and threaded with described shank of bolt
Set；The handwheel being connected with described nut sleeve.
As improving technical scheme further, the hydraulic turbine disc drainage valve that this utility model provides, described connecting rod includes
The first connecting rod that first end is connected with described oscillating bearing；First end is another by inner screw sheath and locking nut and first connecting rod
The second connecting rod that one end connects；The 3rd company that first end is connected with the other end of second connecting rod by inner screw sheath and locking nut
Bar；The other end of described third connecting rod is connected with described shank of bolt.
As improving technical scheme further, the hydraulic turbine disc drainage valve that this utility model provides, in described concrete basis
It is additionally provided with the sleeve pipe with axially extending bore passed through for described connecting rod.
As improving technical scheme further, the hydraulic turbine disc drainage valve that this utility model provides, also have with described
The seal receptacle that support connects；Described seal receptacle is provided with the V-type assembly sealing ring contacted with described connecting rod；Between seal receptacle and support
It is provided with the first sealing ring.
As improving technical scheme further, this utility model provide hydraulic turbine disc drainage valve, described sealing ring with
The second sealing ring it is provided with between valve seat.
As improving technical scheme further, the hydraulic turbine disc drainage valve that this utility model provides, described operating mechanism
Removably connect with described spool, between described operating mechanism and described spool, be provided with the 3rd sealing ring.
In the case of not conflicting, above-mentioned improvement project can be implemented alone or in combination.
The technical scheme that this utility model provides, valve seat connects sealing ring；Spool connects to have and matches with sealing ring
Sealing shroud；The endoporus of sealing ring is tapered, and the periphery of sealing shroud is the most tapered, and the endoporus of sealing ring coordinates with the periphery of sealing shroud
Seal.Using tapered structure to seal and steering capability is good, spool is difficult to jam in closing process, and spool is bored in closing process
Type structure has guide effect, makes spool be prone to location；Its structure is ingenious, easily manufactured；Drain valve opens and closes effective, can reduce
Power station maintenance duration, cost-effective, improve economy.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, constitutes the part of the application, of the present utility model
Schematic description and description is used for explaining this utility model, but is not intended that improper restriction of the present utility model.Attached
In figure:
Fig. 1 is the structural representation of prior art hydraulic turbine disc drainage valve
Fig. 2 is the structural representation of embodiment hydraulic turbine disc drainage valve.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail.
Hydraulic turbine disc drainage valve as shown in Figure 2, including valve seat 1；The spool 3 being connected is opened and closed with valve seat 1；With spool 3
Connect the operating mechanism opened and closed for operation spool 3；The sealing ring 4 that spool 3 end near with valve seat 1 is connected；It is arranged at sealing ring 4 and valve
The second sealing ring 22 between seat 1；The sealing shroud 2 being connected with spool 3 and match with sealing ring 4；The endoporus of sealing ring 4 is cone
Shape, the periphery of sealing shroud 2 is the most tapered, the endoporus of sealing ring 4 and the periphery fitted seal of sealing shroud 2.Can by operating mechanism
Distance between regulation spool 3 and valve seat 1, it is achieved the opening and closing of hydraulic turbine disc drainage valve.Use tapered structure to seal and guide
Performance is good, and spool is difficult to jam in closing process, and spool tapered structure in closing process has guide effect, makes spool easy
In location；Its structure is ingenious, easily manufactured；Drain valve opens and closes effective, can reduce power station maintenance duration, cost-effective, improves
Economy.
Alternatively, the hydraulic turbine disc drainage valve that this utility model provides, also there is nearly valve seat 1 end with spool 3 and be connected
Leading truck 5.The outside of leading truck 5 is incline structure, the outer edge line of its outer edge line and sealing shroud 2 on same curved surface,
Spool leading truck 5 in closing process has guide effect, makes spool be automatically positioned.
Alternatively, the hydraulic turbine disc drainage valve that this utility model provides, described operating mechanism includes the first end and spool 3
The suspension rod 6 connected away from valve seat 1 end；The oscillating bearing 7 that the other end of the first end and 6 suspension rods 6 connects；First end and oscillating bearing
The connecting rod that the other end of 7 connects；The shank of bolt 8 being connected with the other end of connecting rod；It is connected with concrete basis 9 and is connected with rod slide
First connecting rod set 10；The support 11 being connected with concrete basis 9；The second connecting rod set being connected with support 11 and be connected with rod slide
12；The nut sleeve 13 being connected with support 11 and threaded with shank of bolt 8；The handwheel 14 being connected with nut sleeve 13.It is provided with joint
Bearing 7, allows to there is a little error when mounted, it is easier to installs, also allows for spool and be automatically positioned.
Alternatively, the hydraulic turbine disc drainage valve that this utility model provides, described connecting rod includes the first end and described joint
The first connecting rod 15 that bearing 7 connects；First end is connected with the other end of first connecting rod 15 by inner screw sheath and locking nut
Second connecting rod 16；The third connecting rod 17 that first end is connected with the other end of second connecting rod 16 by inner screw sheath and locking nut；
The other end of described third connecting rod 17 is connected with described shank of bolt 8.
Alternatively, the hydraulic turbine disc drainage valve that this utility model provides, it is additionally provided with in described concrete basis for described connecting rod
The sleeve pipe 18 with axially extending bore passed through.
Alternatively, the hydraulic turbine disc drainage valve that this utility model provides, also there is the sealing being connected with described support 11
Seat 19；Described seal receptacle 19 is provided with the V-type assembly sealing ring 20 contacted with described connecting rod；It is provided with between seal receptacle 19 and support 11
First sealing ring 21.
Alternatively, the hydraulic turbine disc drainage valve that this utility model provides, described operating mechanism is detachable with described spool 3
Connect, between described operating mechanism and described spool 3, be provided with the 3rd sealing ring 23.
This utility model is not limited to above preferred implementation, also can limit in this utility model claim and description
Spirit in, carry out conversion and the improvement of various ways, can solve same technical problem, and technique effect expected from acquirement,
Therefore do not repeat.Those of ordinary skill in the art can from this utility model disclosure directly or all schemes of associating,
As long as within the spirit that claim limits, falling within protection domain of the present utility model.
Claims (8)
1. a hydraulic turbine disc drainage valve, including valve seat (1)；The spool (3) being connected is opened and closed with described valve seat (1)；With described
Spool (3) connects for operating the operating mechanism that described spool (3) opens and closes, it is characterised in that: also there is valve near with described valve seat (1)
The sealing ring (4) that core (3) end connects；The sealing shroud (2) being connected with described spool (3) and match with described sealing ring (4)；Institute
The endoporus stating sealing ring (4) is tapered, and the periphery of described sealing shroud (2) is the most tapered, and the endoporus of described sealing ring (4) is with described
The periphery fitted seal of sealing shroud (2).
Hydraulic turbine disc drainage valve the most according to claim 1, it is characterised in that: also have with described spool (3) is near
The leading truck (5) that valve seat (1) end connects.
Hydraulic turbine disc drainage valve the most according to claim 1 and 2, it is characterised in that: described operating mechanism includes first
Hold and hold, with described spool (3), the suspension rod (6) being connected away from valve seat (1)；The pass that first end is connected with the other end of described suspension rod (6)
Bearings (7)；The connecting rod that first end is connected with the other end of described oscillating bearing (7)；It is connected with the other end of described connecting rod
Shank of bolt (8)；The first connecting rod set (10) being connected with concrete basis (9) and being connected with described rod slide；With described concrete basis (9)
The support (11) connected；The second connecting rod set (12) being connected with described support (11) and be connected with described rod slide；With described
The nut sleeve (13) that support (11) connects and threadeds with described shank of bolt (8)；The handwheel being connected with described nut sleeve (13)
(14).
Hydraulic turbine disc drainage valve the most according to claim 3, it is characterised in that: described connecting rod includes that the first end is with described
The first connecting rod (15) that oscillating bearing (7) connects；First end is another by inner screw sheath and locking nut and first connecting rod (15)
The second connecting rod (16) that one end connects；First end is connected with the other end of second connecting rod (16) by inner screw sheath and locking nut
Third connecting rod (17)；The other end of described third connecting rod (17) is connected with described shank of bolt (8).
Hydraulic turbine disc drainage valve the most according to claim 3, it is characterised in that: it is additionally provided with in described concrete basis for described
What connecting rod passed through has the sleeve pipe (18) of axially extending bore.
Hydraulic turbine disc drainage valve the most according to claim 3, it is characterised in that: also have and be connected with described support (11)
Seal receptacle (19)；Described seal receptacle (19) is provided with V-type assembly sealing ring (20) contacted with described connecting rod；Seal receptacle (19) with
The first sealing ring (21) it is provided with between support (11).
Hydraulic turbine disc drainage valve the most according to claim 1, it is characterised in that: described sealing ring (4) and valve seat (1) it
Between be provided with the second sealing ring (22).
Hydraulic turbine disc drainage valve the most according to claim 1, it is characterised in that: described operating mechanism and described spool
(3) removably connect, between described operating mechanism and described spool (3), be provided with the 3rd sealing ring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753355.2U CN205859163U (en) | 2016-07-18 | 2016-07-18 | A kind of hydraulic turbine disc drainage valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753355.2U CN205859163U (en) | 2016-07-18 | 2016-07-18 | A kind of hydraulic turbine disc drainage valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205859163U true CN205859163U (en) | 2017-01-04 |
Family
ID=57647376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620753355.2U Active CN205859163U (en) | 2016-07-18 | 2016-07-18 | A kind of hydraulic turbine disc drainage valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205859163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795204A (en) * | 2020-06-17 | 2020-10-20 | 湖南云箭科技有限公司 | Disc valve hydraulic control device with direction-adjustable valve core |
| CN111853332A (en) * | 2020-06-17 | 2020-10-30 | 湖南云箭科技有限公司 | Axial direction movement adjustable disc valve hydraulic control device |
-
2016
- 2016-07-18 CN CN201620753355.2U patent/CN205859163U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795204A (en) * | 2020-06-17 | 2020-10-20 | 湖南云箭科技有限公司 | Disc valve hydraulic control device with direction-adjustable valve core |
| CN111853332A (en) * | 2020-06-17 | 2020-10-30 | 湖南云箭科技有限公司 | Axial direction movement adjustable disc valve hydraulic control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |