CN207777671U - Hydroturbine water intake ball valve and integrated valve arrangement - Google Patents
Hydroturbine water intake ball valve and integrated valve arrangement Download PDFInfo
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- CN207777671U CN207777671U CN201721829019.2U CN201721829019U CN207777671U CN 207777671 U CN207777671 U CN 207777671U CN 201721829019 U CN201721829019 U CN 201721829019U CN 207777671 U CN207777671 U CN 207777671U
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- valve
- shaft
- water intake
- barrel
- intake ball
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Abstract
The utility model is related to a kind of hydroturbine water intake ball valves and integrated valve arrangement, the one valve arrangement to be used for hydroturbine water intake ball valve comprising：Valve, the valve is arranged for conducting and blocks flow, and be structure as a whole respectively with left valve shaft and right valve shaft construction transverse to the both sides of water (flow) direction, the change of the rotation angle that the valve can be by the left valve shaft and the right valve shaft around own axes is connected or blocks flow.The hydroturbine water intake ball valve includes above-mentioned integrated valve arrangement and valve body, the valve body by transverse to the both sides of water (flow) direction (F) left valve barrel and right valve barrel be welded, the valve of the one valve arrangement is contained in the valve inner, and the left valve shaft and right valve shaft of the one valve arrangement are each passed through the left valve barrel and right valve barrel and are connected with the external valve shaft operating mechanism of the rotation angle for changing the left valve shaft and right valve shaft around own axes.
Description
Technical field
The present invention relates to a kind of hydroturbine water intake ball valve and a kind of integrated valve arrangements for the water intake ball valve.
Background technology
In order to meet the needs of Hydropower Plant operation and maintenance, in the streaming system excessively of Diversion system of hydropower station and the hydraulic turbine
In, different location is equipped with corresponding valve or gate is controlled flow.It is installed in general, being used as using split-type ball valve
Water intake ball valve before spiral case.
In the hydroturbine water intake ball valve of hydraulic turbine upstream arrangement, basic control action is played to hydroturbine water intake, is realized
Protection to power station.Every water intake ball valve connects short tube by upstream flange and is rigidly connected with power station penstock, and downstream is logical
Telescopic joint is crossed to connect with spiral case.Water intake ball valve is mounted in Power Plant valve gallery, valve using sole plate and
Foundation bolt is mounted in box-shaped concrete foundation.Water intake ball valve is designed to move along penstock center line when operation.
The small of penstock length stretches caused by the variation of pressure when adapting to valve opening or close.
When unit orderly closedown or maintenance, water intake ball valve should be closed.Under normal conditions, water intake ball valve should be in pressure balance
In the case of operation (i.e. guide vanes of water turbine closing).In case of emergency, it can be closed under hydraulic turbine full flow.I.e. dynamic water closes
It closes.
Water intake ball valve is opened and closed by servomotor.Water intake ball valve, which is turned on and off the time, independently to be adjusted,
It is additionally provided with throttling buffering device in servomotor closed position end.
The left valve shaft being connected with the spool valve arrangement of water intake ball valve is equipped with bearing with right valve shaft, and the both sides of bearing are equipped with
Shaft end seal, shaft end seal include interior sealing and external seal, and interior sealing is used for preventing foreign matter from entering in bearing, and external seal is used for preventing
The leakage of fluid stopping body；Left valve shaft is leaked with fluid when right valve shaft rotary work in order to prevent, and shaft end seal is set as dynamic close
Envelope, further improves the safety and reliability of ball valve.
Valve can rotate under bearing support in valve body, and the gap at valve both ends is closed by stainless steel sealing ring, close
Seal slides axially by the voltage-controlled system of upper water on valve body.Valve body upstream side seal is that maintenance seals, and valve body downstream side seal is
Working seal.When water intake ball valve is fully closed, working seal automatically engages.Maintenance sealing is typically to open, only in maintenance of valve
In the case of close.
Traditionally, this water intake ball valve uses splitted structure, two splitted structures to be connected by screw bolts.Valve is adopted with pivot
It is connected with.But splitted structure is complicated, production cost is higher, and force-bearing situation is poor, and service life is short.
Traditionally, valve respectively should be into water polo from the front side of water intake ball valve and left and right sides merging with left valve shaft and right valve shaft
Valve, the valve inner realization for dismountable mode such as being then bolted again in water intake ball valve have been placed in the water intake ball valve
Valve and stretch into the left valve shaft in the water intake ball valve and the connection between right valve shaft from the left and right sides.It is this design firstly the need of
The opening that size is enough that valve is made to pass through is reserved on front side of valve body, and the preceding valve in the opening is then bolted
Lid closed valve and form complete valve body.
Being desirable to valve using the motivation of this splitted structure can be detachable relative to left and right valve shaft, this is by small
Customary cognition influence and generation is required for the replaceability of each component in the design of type valve.It is this to require to be used for the hydraulic turbine
Inlet valve in valve also can establish the customary cognition that be detachably connected with left and right valve shaft, result in the structure of water intake ball valve
The increase of the costs such as centering, dynamic balancing when complexity, installation, however the valve in putting into practice in water intake ball valve can't with left and right valve shaft
Frequently dismounting, will not frequently take out water intake ball valve from the valve body of splitted structure.
Invention content
Therefore, technical problem to be solved by the present invention lies in providing a kind of solution that can overcome disadvantage mentioned above,
It is good to provide a kind of concentricity, sealing is tight, simple in structure, and good point of valve of globality welds integrated ball valve.
For this purpose, the present invention provides a kind of water intake ball valves for power station, including：Valve, the valve are arranged for
Conducting and blocking flow, and transverse to the both sides of water (flow) direction monobloc knot is being configured to left valve shaft and right valve shaft respectively
Structure, the change of the rotation angle that the valve can be by the left valve shaft and the right valve shaft around own axes are connected or hinder
It is disconnected；And valve body, the valve body by transverse to the both sides of water (flow) direction left valve barrel and right valve barrel be welded, the one is living
The valve of door gear is contained in the valve inner, and the left valve shaft and right valve shaft of the one valve arrangement are each passed through the left valve
Body and right valve barrel are connected with for changing left valve shaft and right valve shaft around the external valve shaft operating mechanism of the rotation angle of own axes
It connects.
Since valve and left valve shaft and right valve shaft construction are structure as a whole, thus left valve shaft is connect with bolt connecting mode
It is compared with the technical solution of right valve shaft, can ensure the higher coaxial of the shaft end seal of left valve shaft and the shaft end seal of right valve shaft
Degree, to reduce the possibility of leakage, extends the service life of shaft end seal.
Valve is using whole high-strength alloy cast steel structure.The overcurrent latus rectum of valve is identical as penstock, and adds through machine
Work, to reduce the head loss by water intake ball valve.
Left and right valve body is cast using high-strength alloy cast steel split-type, in integrated valve arrangement, i.e. valve and a left side
After the integral structure that valve shaft and right valve shaft are collectively configured to is placed into left valve barrel and right valve barrel, left valve barrel and right valve barrel are welded
For an entirety.At this point, the left valve shaft and right valve shaft of the one valve arrangement be each passed through the left valve barrel and right valve barrel with
External valve shaft operating mechanism for changing left valve shaft with right valve shaft around the rotation angle of own axes is connected, and comes from external valve
The torque of axis operating mechanism is directly delivered to by valve shaft on valve.
In optimal technical scheme according to the present invention, since the weld seam that valve body is welded by left valve barrel and right valve barrel encloses
At the plane parallel with the water (flow) direction in the water intake ball valve, thus there is no weld seams at left and right sides of valve body, can direct cloth
Set valve shaft.
In optimal technical scheme according to the present invention, left valve barrel and right valve barrel distinguish hemispherical shape.Connect with bolt
It connects preceding valve deck under mode to compare with the size splitted structure that valve body forms, the connection flange among valve body is omitted, needed original
The front and back valve body connected with bolt becomes left and right valve body and is welded directly together, and the valve body of ball valve becomes balling-up by cylinder
Shape shell greatly improves the force-bearing situation of valve body.
Body base carries integral installation footing, and whole vertical loads can be transmitted in concrete foundation.And it is designed to
It can make micro movement in the axial direction, ball valve foundation bolt is made to be not subject to axial hydraulic thrust, this hydraulic thrust passes through water inlet by valve body
It takes over and is transmitted on upstream pressure steel pipe, the hydraulic thrust on valve is transmitted in concrete foundation by upstream pressure steel pipe.
And the influence that the penstock caused by temperature and variation in water pressure moves axially can be eliminated.
The air bleeding valve of manual operation is mounted on the top of valve body.To avoid sediment siltation in body base, at the bottom of valve body
Portion is equipped with blowoff line.
Compared with the water intake ball valve of existing split-type structure, the advantageous effect of the technical solution of the application is：
I. valve body is integral structure, and left and right valve body improves body strength and rigidity due to being not necessarily to be bolted, can will
The powerful hydraulic thrust that valve shaft generates safely and reliably is transmitted on valve body upstream flange.Valve shaft and valve do not need bolt handle and close,
The distance at two valve shafts bearing center is obviously shortened, and the moment of flexure acted on valve shaft generated by upstream hydraulic thrust also accordingly reduces,
So as to improve the force-bearing situation of valve shaft.
II. valve body and valve can be carried out with processing, and ensure that valve upper sealing ring mounting surface and valve body runner crown seal
Contact surface position is accurate, has reliable sealing performance.
III. it compared with the size splitted structure that preceding valve deck under bolt connecting mode and valve body form, is omitted among valve body
Connection flange, needing the valve body connected with bolt to be welded directly together originally, the valve body of ball valve is become by cylinder
Spherical shell greatly improves the force-bearing situation of valve body.
IV. water intake ball valve after the completion of factory assembles, install by whole Transporting to building site, without decoupling transport then again in work
Ground assembles, and reduces workload and period, it is most important that assembling quality is guaranteed, and ensure that the performance of product.
V. tailored appearance is beautiful, and valve body can not possibly generate leakage without joint surface.
The meaning of the technical solution of the application also resides in, and overcomes technology prejudice existing for this field, water intake ball valve is set
Integrated technical solution is counted although losing the dismantled and assembled property paid much attention in traditional sense, this sacrifice but obtains
The advantageous effect of above-mentioned aspects, achieves unexpected technological progress.
Description of the drawings
Fig. 1 is the decomposition perspective view of the valve and left and right valve shaft of the split-type water intake ball valve under the prior art, wherein institute
Show that valve is bolted to form one with left and right valve shaft；
Fig. 2 is the split-type water intake ball valve under the prior art, wherein water intake ball valve includes that can be assemblied in valve to be bolted
Preceding valve deck on front side of phosphor bodies, for valve to be put into valve body when mounted；
Fig. 3 is exploded perspective of the Integral inlet ball valve according to the present utility model before valve body forms integral structure
Figure, wherein left and right valve body not yet weld together；
Fig. 4 is the installation diagram of Integral inlet ball valve according to the present utility model.
Specific implementation mode
Fig. 1 is the decomposition perspective view of the valve and left and right valve shaft of the split-type water intake ball valve under the prior art, wherein institute
Show that valve 130 is bolted to form one with left and right valve shaft 140,150.Fig. 2 is split-type under the prior art into water polo
Valve, wherein water intake ball valve includes can be to be bolted the preceding valve deck 120 being assemblied on front side of 110 main body of valve body, for when mounted
Valve 130 is put into valve body 110.
Fig. 3 is exploded perspective of the Integral inlet ball valve according to the present utility model before valve body forms integral structure
Figure, middle left and right valve body not yet weld together, as shown in figure 3, integrated valve arrangement 230 includes valve 130, the valve
130 be arranged for conducting with block flow, and transverse to the both sides of water (flow) direction F respectively with left valve shaft 140 and right valve shaft
150 constructions are structure as a whole, such as by block cast mode, the valve 130 can pass through the left valve shaft 140 and the right valve
Axis 150 is connected or is blocked around the change of the rotation angle of own axes, can ensure a left side using the valve arrangement of integral structure
The shaft end seal of valve shaft 140 and the relatively high-axiality of the shaft end seal of right valve shaft 150 prolong to reduce the possibility of leakage
The service life for having grown shaft end seal, since the overcurrent latus rectum of valve is identical as penstock and uses whole high-strength alloy
Cast steel structure can reduce the head loss by water intake ball valve.
Valve body 210 by transverse to the both sides of water (flow) direction F left valve barrel 211 and right valve barrel 212 be welded, described one
The valve 130 of body valve arrangement 230 is contained in inside the valve body 210, and 211 He of left valve barrel is placed into integrated valve arrangement 230
After in right valve barrel 212, left valve barrel 211 and right valve barrel 212 are welded as an entirety, the left valve of the one valve arrangement 230
Axis 140 and right valve shaft 150 are each passed through the left valve barrel 211 and right valve barrel 212 and for changing left valve shaft and right valve shaft around certainly
The external valve shaft operating mechanism 260 of the rotation angle of body axis is connected, in this way the torque from external valve shaft operating mechanism 260
It is directly delivered on valve 130 by valve shaft.
Valve body 210 and valve 130 can carry out, with processing, ensure that on 130 upper sealing ring mounting surface of valve and valve body 210
The contact surface position of seal ring is accurate, has reliable sealing performance.
Fig. 4 is the installation diagram of Integral inlet ball valve according to the present utility model.As shown in figure 4, first, valve 130 exists
It is configured to monobloc structure with left valve shaft 140 and right valve shaft 150 respectively transverse to the both sides of water (flow) direction F, it then, will be integrated
After valve arrangement 230 is put into left valve barrel 211 and right valve barrel 212, left valve barrel 211 and right valve barrel 212 are welded as an entirety,
The left valve shaft 140 and right valve shaft 150 of the one valve arrangement 230 are each passed through the left valve barrel 211 and right valve barrel 212 and use
It is connected in the external valve shaft operating mechanism 260 for changing rotation angle of the left valve shaft with right valve shaft around own axes, comes from this way
The torque of external valve shaft operating mechanism 260 is directly delivered to by valve shaft on valve 130.
Since valve body 210 is integral structure, left and right valve body due to be not necessarily to be bolted and improve 210 intensity of valve body and
The powerful hydraulic thrust that valve shaft generates can be safely and reliably transmitted on valve body upstream flange by rigidity.Valve shaft and valve do not need
Bolt is closing, and the distance at two valve shafts bearing center is obviously shortened, the moment of flexure acted on valve shaft generated by upstream hydraulic thrust
It is corresponding to reduce, so as to improve the force-bearing situation of valve shaft.
Compared with the size splitted structure that preceding valve deck under bolt connecting mode and valve body form, the connection among valve body is omitted
Acting flange, needing the valve body connected with bolt to be welded directly together originally, the valve body of ball valve becomes spherical by cylinder
Shell greatly improves the force-bearing situation of valve body.
Ball valve after the completion of factory assembles, install by whole Transporting to building site, is then assembled again in building site without decoupling transport,
Reducing workload and period, it is most important that valve body can not possibly generate leakage without joint surface, and assembling quality is guaranteed,
It ensure that the performance of product, appearance also simple and beautiful.
210 bottom of valve body carries integral installation footing, and whole vertical loads can be transmitted in concrete foundation.And it designs
At micro movement can be made in the axial direction, ball valve foundation bolt is made to be not subject to axial hydraulic thrust, this hydraulic thrust by valve body by into
Water, which is taken over, to be transmitted on upstream pressure steel pipe, and the hydraulic thrust on valve is transmitted to concrete foundation by upstream pressure steel pipe
On.And the influence that the penstock caused by temperature and variation in water pressure moves axially can be eliminated.
The air bleeding valve of manual operation is mounted on the top of valve body.To avoid sediment siltation in body base, at the bottom of valve body
Portion is equipped with blowoff line.
Describe the preferred embodiment of the present invention above, but the spirit and scope of the present invention be not limited to it is disclosed herein
Particular content.Those skilled in the art can it is according to the present invention introduction and make more embodiments and application, these realities
It applies mode and application would be within the spirit and scope of the present invention.The spirit and scope of the present invention are not limited by specific embodiment,
And it is defined by the claims.
Reference numerals list
100 hydroturbine water intake ball valves
110 valve bodies
Valve deck before 120
130 valve
140 left valve shafts
150 right valve shafts
160 outside valve shaft operating mechanisms
210 valve bodies
230 integrated valve arrangements
211 left valve barrels
212 right valve barrels
260 outside valve shaft operating mechanisms
270 weld seams
F water (flow) directions.
Claims (4)
1. a kind of one valve arrangement (230), which is used for hydroturbine water intake ball valve (100), packet
It includes：
Valve (130), the valve (130) are arranged for conducting and block flow, and transverse to the both sides of water (flow) direction (F)
Monobloc structure is configured to left valve shaft (140) and right valve shaft (150) respectively, the valve (130) can pass through the left side
The change of the rotation angle of valve shaft (140) and the right valve shaft (150) around own axes is connected or blocks flow.
2. a kind of hydroturbine water intake ball valve (100), including：
One valve arrangement (230) as described in claim 1, and
Valve body (210), the valve body by transverse to the both sides of water (flow) direction left valve barrel (211) and right valve barrel (212) welding and
At the valve (130) of the one valve arrangement (230) is contained in the valve body (210) inside, the one valve arrangement
(230) left valve shaft (140) and right valve shaft (150) be each passed through the left valve barrel (211) and right valve barrel (212) with for changing
External valve shaft operating mechanism (260) of the left valve shaft (140) with right valve shaft (150) around the rotation angle of own axes is connected
It connects.
3. hydroturbine water intake ball valve according to claim 2, which is characterized in that the left valve barrel (211) and right valve barrel
(212) weld seam surrounds the plane parallel with water (flow) direction (F) in the water intake ball valve.
4. hydroturbine water intake ball valve according to claim 2, which is characterized in that the left valve barrel (211) and right valve barrel
(212) the hemispherical shape of difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721829019.2U CN207777671U (en) | 2017-12-25 | 2017-12-25 | Hydroturbine water intake ball valve and integrated valve arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721829019.2U CN207777671U (en) | 2017-12-25 | 2017-12-25 | Hydroturbine water intake ball valve and integrated valve arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207777671U true CN207777671U (en) | 2018-08-28 |
Family
ID=63228716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721829019.2U Active CN207777671U (en) | 2017-12-25 | 2017-12-25 | Hydroturbine water intake ball valve and integrated valve arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207777671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547618A (en) * | 2020-04-29 | 2020-08-18 | 江苏盐电阀门有限公司 | Hoisting and conveying device for replacing valve element of large ball valve |
-
2017
- 2017-12-25 CN CN201721829019.2U patent/CN207777671U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111547618A (en) * | 2020-04-29 | 2020-08-18 | 江苏盐电阀门有限公司 | Hoisting and conveying device for replacing valve element of large ball valve |
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