CN108240480B - Hydraulic turbine adjustable vacuum destructive valve - Google Patents
Hydraulic turbine adjustable vacuum destructive valve Download PDFInfo
- Publication number
- CN108240480B CN108240480B CN201711282696.1A CN201711282696A CN108240480B CN 108240480 B CN108240480 B CN 108240480B CN 201711282696 A CN201711282696 A CN 201711282696A CN 108240480 B CN108240480 B CN 108240480B
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- China
- Prior art keywords
- valve
- vacuum degree
- adjustment
- flap
- hydraulic turbine
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F03B15/00—Controlling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/52—Means for additional adjustment of the rate of flow
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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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses hydraulic turbine adjustable vacuum destructive valves, including air admission valve, secondary water-stop ball-cock assembly, valve body and flap, the air admission valve is equipped with valve seat, valve rod and vacuum degree adjust device, the vacuum degree adjustment device includes vacuum degree adjustment block, adjust window, stop pin and handle, the vacuum degree adjustment block is sleeved on valve rod and is located at spring top, the side of vacuum degree adjustment block is uniformly provided with several adjustment stations and several pin holes, stop pin passes through pin hole and is fixedly mounted on valve rod, adjustment window is mounted on the side in valve body and being located at vacuum degree adjustment block, handle insertion adjustment station, rotating handle makes vacuum degree adjustment block adjustment spring distance of stretch out and draw back, to realize the adjusting of vacuum degree.The present invention on air admission valve by being arranged vacuum-ness regulator, and it is adjustable to realize vacuum degree, vacuum degree variation phenomenon caused by can effectivelying prevent because of pipe vibration.
Description
Technical field
The present invention relates to valve technology fields, and in particular to a kind of hydraulic turbine adjustable vacuum destructive valve.
Background technique
The hydraulic turbine is the tonifying Qi component of main-shaft core tonifying Qi and runner epicoele tonifying Qi on the hydraulic turbine with air admission valve.
When water distributor is in case of emergency closed, runner envelope generates higher true under the water pump effect of the inertia and runner of water flow
Sky, and then tail water is caused to recoil, so that biggish impact force can be generated or lift machine phenomenon occur, at this moment just need to main-shaft core
Tonifying Qi, to reduce impact force or avoid the occurrence of lift machine phenomenon, to play the role of protecting the hydraulic turbine.In normal work, it needs
It will be by spindle hole to runner epicoele tonifying Qi, to guarantee the normal operation of runner.Air admission valve is one-way gas-compensating valve, main
It to be controled valve closing by compressed spring, and be aided with rubber weather strip and be sealed.When inner cavity generates negative pressure of vacuum, in bullet
It is gradually opened valve under spring active force and carries out tonifying Qi.Existing air admission valve generallys use oleo cushion, and vacuum degree is non-adjustable
Section, in use for some time or the variation of vacuum degree caused by pipe vibration, buffering oil can be leaked gradually, cause environmental pollution.
Summary of the invention
The purpose of the present invention is to provide a kind of vacuum degree adjustable hydraulic turbine adjustable vacuum destructive valves.
The purpose of the present invention is what is be achieved through the following technical solutions:
Hydraulic turbine adjustable vacuum destructive valve, including air admission valve, secondary water-stop ball-cock assembly, valve body and valve
Valve, the valve body are mounted at the top of air admission valve, and secondary water-stop ball-cock assembly is mounted in valve body；The air admission valve
It is equipped with valve seat and valve rod, stem bottom passes through flap, and valve rod top is cased with spring, the bottom of valve body and the fixed company of valve seat
It connects, vacuum degree adjustment device is additionally provided on air admission valve, the vacuum degree adjustment device includes vacuum degree adjustment block, adjustment window
Mouth, stop pin and handle, the vacuum degree adjustment block are sleeved on valve rod and are located at spring top, the side of vacuum degree adjustment block
It is uniformly provided with several adjustment stations and several pin holes, stop pin passes through pin hole and is fixedly mounted on valve rod, adjustment window peace
Side in valve body and positioned at vacuum degree adjustment block, handle insertion adjustment station, rotating handle make vacuum degree adjustment block tune
Telescopic spring distance is saved, so that the adjusting of vacuum degree can be realized.Further, on the valve rod and flap clearance fit and valve rod
It is machined with inclined-plane with flap junction, flap bottom is equipped with spherical surface adjusting pad and nut, and nut is connected to by split pin locking
On valve rod.
Further, between the valve seat and flap there are gap and pass through triangular form seal with elastometic washer.
Further, the triangular form rubber ring is made of explosion-proof fluorubber material.
Further, the gap between the valve seat and flap is 0.5~0.7mm.
Further, the valve stem top is equipped with cushioned check valve, and cushioned check valve includes air damping piston and damping
Device, damper are located at one end of air damping piston.
Further, it is equipped with damping coupling tube between the air admission valve and pipeline, is provided in damping coupling tube several
Equally distributed through-hole.
Further, the adjustment station is equipped with 8.
The invention has the following advantages:
(1) air admission valve and secondary water-stop ball-cock assembly are used into modularized design, and are connected by valve body,
Not only it can be used alone, but also can be used in combination, and saved installation space, and be also convenient for overhauling and safeguarded；
(2) by the way that vacuum-ness regulator is arranged on air admission valve, it is adjustable to realize vacuum degree, and can effectively prevent
Only because of vacuum degree variation phenomenon caused by pipe vibration, and then prevent from buffering oily leakage；
(3) inclined-plane will be machined on valve rod and flap clearance fit and valve rod with flap junction, flap bottom is equipped with ball
Face adjusting pad keeps flap swingable in a certain range, has the function of self-centering, improves flap sealing effect；
(4) nut locking is connected on valve rod by split pin, has the function of anti-rotation and anti-dropout；
(5) the triangular form seal with elastometic washer made of explosion-proof fluorubber is used between valve seat and flap, not only sealing effect
It is good, but also have the function of anti-discharge rupture；
(6) by the way that cushioned check valve is arranged at the top of air admission valve, it can prevent from generating shock when valve rapid-closing, make
Air admission valve after the completion of tonifying Qi can returning quickly, and slowly closing, and noiseless；
(7) it by adding damping coupling tube between air admission valve and pipeline, and is provided in damping coupling tube several
Equally distributed through-hole can avoid head and directly wash away flap, it is therefore prevented that flap causes to leak because of discontinuity.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the partial enlargement diagram of part A in Fig. 1；
Fig. 3 is the partial enlargement diagram of the part D in Fig. 2；
Fig. 4 is the partial enlargement diagram of the part E in Fig. 2；
Fig. 5 is the structural schematic diagram of vacuum degree adjustment block of the present invention；
Fig. 6 is the partial enlargement diagram of part B in Fig. 1；
Fig. 7 is the partial enlargement diagram of C portion in Fig. 1；
Fig. 8 is the structural schematic diagram of present invention damping coupling tube.
Marked in the figure: 1, air admission valve；2, secondary water-stop ball-cock assembly；3, flap；4, triangular form rubber ring；5, it hinders
Buddhist nun's coupling tube；6, valve body；11, valve rod；12, spring；13, valve seat；14, ball-type adjusting pad；15, nut；16, split pin；17, true
Reciprocal of duty cycle adjusts device；171, vacuum degree adjustment block；1711, station is adjusted；1712, pin hole；172, window is adjusted；173, anti-rotation
Pin；18, cushioned check valve；181, air damping piston；182, damper.
Specific embodiment
As shown in FIG. 1 to FIG. 8, hydraulic turbine adjustable vacuum destructive valve provided in this embodiment include air admission valve 1,
Secondary water-stop ball-cock assembly 2, flap 3 and valve body 6, the valve body 6 are mounted on 1 top of air admission valve, secondary water-stop
Ball-cock assembly 2 is mounted in valve body 6；Air admission valve 1 includes valve rod 11, spring 12 and valve seat 13, and 11 top of valve rod is cased with spring
12, bottom is cased with ball-type adjusting pad 14 and nut 15 after passing through flap 3, is equipped with split pin 16 on the nut 15, can prevent
Nut 15 is rotated and is fallen off；The valve rod 11 is machined with inclined-plane with 3 junction of flap in 3 clearance fit of flap and valve rod 11,
So that flap 3 can be swung in a certain range, there is self-centering action, improve 3 sealing effect of flap.The valve body 6 with
Valve seat 13 is bolted to connection, and connects air admission valve 1 and secondary water-stop ball-cock assembly 2 to realize.Such as Fig. 6 institute
Show, there are the gaps of a=0.5~0.7mm between the valve seat 13 and flap 3, and between valve seat 13 and flap 3 also using by
The sealing of triangular form rubber ring 4 made of explosion-proof fluorubber, has sealing effect good, and the triangle rubber ring uses explosion-proof fluorubber
(VITON) material has the function of anti-discharge rupture.
The air admission valve 1 is equipped with vacuum degree and adjusts device 17, as shown in Figure 2 to 4, the vacuum degree adjustment dress
Setting 17 includes vacuum degree adjustment block 171, adjustment window 172, stop pin 173 and handle, and 171 sets of the vacuum degree adjustment block is in valve
On bar 11 and it is located at 12 top of spring, the side of vacuum degree adjustment block 171 is uniformly provided with 8 adjustment station 1711 and 4 bolts
Hole 1712, stop pin 173 pass through pin hole 1712 and are fixedly mounted on valve rod 11, and adjustment window 172 is mounted on valve by bolt
Side in body 6 and positioned at vacuum degree adjustment block 171, handle insertion adjustment station 1711, rotating handle make vacuum degree adjustment block
171 adjustment spring, 12 distance of stretch out and draw back, so that the adjusting of vacuum degree can be realized.
The workflow that the present invention specifically adjusts vacuum degree is: first taking secondary water-stop ball-cock assembly 2 from valve body 6
Out, adjustment window 172 is opened, stop pin 173 is detached from valve rod 11, handle is inserted into the adjustment work in vacuum degree adjustment block 171
In position 1711, rotating handle, vacuum degree adjustment block 171 is compressed or extension spring 12, and then realizes the increase of vacuum degree or subtract
Small (adjustment improves vacuum degree clockwise, and adjustment reduces vacuum degree counterclockwise).After adjustment, stop pin 173 is inserted into bolt
It is locked in hole 1712 and with valve rod 11, effectively prevents the generation of vacuum degree variation phenomenon caused by pipe vibration, Jin Erfang
Only buffering oil leakage, prevents the pollution of the environment.
As shown in figure 4, cushioned check valve 18 is additionally provided at the top of the valve rod 11 of the air admission valve 1, the buffering check
Valve 18 includes air damping piston 181 and damper 182, and damper 182 is located at one end of air damping piston 181, the buffering
Shock is generated when non-return valve 18 can prevent valve rapid-closing, make air admission valve 1 after the completion of tonifying Qi can returning quickly, and delay
It is slow to close and noiseless.
During installation, it is equipped with damping coupling tube 5 between the air admission valve 1 and pipeline, and is opened in damping coupling tube 5
Have several equally distributed through-holes, structure as shown in fig. 7, can avoid head directly wash away flap 3, it is therefore prevented that flap 3 because by
Power is uneven and causes to leak.
The above is only the preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, any
The transformation and replacement carried out based on technical solution provided by the present invention and inventive concept should all be covered in protection model of the invention
In enclosing.
Claims (8)
1. hydraulic turbine adjustable vacuum destructive valve, including air admission valve, secondary water-stop ball-cock assembly, valve body and flap,
The valve body is mounted at the top of air admission valve, and secondary water-stop ball-cock assembly is mounted in valve body；On the air admission valve
Equipped with valve seat and valve rod, stem bottom passes through flap, and valve rod top is cased with spring, and the bottom of valve body is fixedly connected with valve seat,
It is characterized by: being additionally provided with vacuum degree adjustment device on air admission valve, the vacuum degree adjustment device includes vacuum degree adjustment
Block, adjustment window, stop pin and handle, the vacuum degree adjustment block are sleeved on valve rod and are located at spring top, vacuum degree tune
The side of monolith is uniformly provided with several adjustment stations and several pin holes, and stop pin passes through pin hole and is fixedly mounted on valve rod,
Adjustment window is mounted on the side in valve body and being located at vacuum degree adjustment block, handle insertion adjustment station, and rotating handle makes vacuum
Adjustment block adjustment spring distance of stretch out and draw back is spent, so that the adjusting of vacuum degree can be realized.
2. the hydraulic turbine according to claim 1 adjustable vacuum destructive valve, it is characterised in that: between the valve rod and flap
Inclined-plane is machined in gap cooperation and valve rod with flap junction, flap bottom is equipped with spherical surface adjusting pad and nut, and nut is by opening
Mouth lock is connected on valve rod surely.
3. the hydraulic turbine according to claim 1 adjustable vacuum destructive valve, it is characterised in that: the valve seat and flap it
Between there are gap and pass through triangular form seal with elastometic washer.
4. the hydraulic turbine according to claim 3 adjustable vacuum destructive valve, it is characterised in that: the triangular form rubber ring
It is made of explosion-proof fluorubber material.
5. the hydraulic turbine according to claim 3 adjustable vacuum destructive valve, it is characterised in that: the valve seat and flap it
Between gap be 0.5~0.7mm.
6. the hydraulic turbine according to claim 1 adjustable vacuum destructive valve, it is characterised in that: the valve stem top is equipped with
Cushioned check valve, cushioned check valve include air damping piston and damper, and damper is located at one end of air damping piston.
7. the hydraulic turbine according to claim 1 adjustable vacuum destructive valve, it is characterised in that: the air admission valve with
It is equipped with damping coupling tube between pipeline, damps and is provided with several equally distributed through-holes in coupling tube.
8. the hydraulic turbine according to claim 1 adjustable vacuum destructive valve, it is characterised in that: the adjustment station is equipped with
8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282696.1A CN108240480B (en) | 2017-12-07 | 2017-12-07 | Hydraulic turbine adjustable vacuum destructive valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282696.1A CN108240480B (en) | 2017-12-07 | 2017-12-07 | Hydraulic turbine adjustable vacuum destructive valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108240480A CN108240480A (en) | 2018-07-03 |
| CN108240480B true CN108240480B (en) | 2019-08-16 |
Family
ID=62700997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711282696.1A Active CN108240480B (en) | 2017-12-07 | 2017-12-07 | Hydraulic turbine adjustable vacuum destructive valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108240480B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB710724A (en) * | 1951-12-10 | 1954-06-16 | Henry Seeler | Resuscitator |
| US6789565B2 (en) * | 2002-05-20 | 2004-09-14 | Thomas E. Allen | Metering valve |
| CN2706646Y (en) * | 2004-04-30 | 2005-06-29 | 韩宏波 | Buffering type double seal vacuum gas supplying valve |
| CN201281153Y (en) * | 2008-11-06 | 2009-07-29 | 福建万新发电设备有限公司 | Amortization type vacuum destroy valve |
| CN201991675U (en) * | 2011-02-11 | 2011-09-28 | 白山发电厂 | Vacuum breaker valve for hydro turbine runner chamber air compensation |
| CN103850854B (en) * | 2012-12-04 | 2016-12-21 | 哈尔滨盛迪电力设备有限公司 | Built-in air buffering making-up air device |
| CN104005900B (en) * | 2013-02-22 | 2016-12-28 | 哈尔滨盛迪电力设备有限公司 | Combined air buffering making-up air device |
| CN205260849U (en) * | 2015-11-27 | 2016-05-25 | 哈尔滨电机厂有限责任公司 | Vacuum breaker valve |
| CN106246938B (en) * | 2016-09-30 | 2018-06-29 | 王瑞卿 | Combine adjustable elastic sealing flap high temperature and pressure safety valve |
| CN106523726B (en) * | 2016-11-14 | 2018-08-21 | 江苏大学 | A kind of two-phase fluid big flow precise control device |
| CN206419150U (en) * | 2016-12-22 | 2017-08-18 | 重庆水轮机厂有限责任公司 | A kind of air supplement of turbine valve |
-
2017
- 2017-12-07 CN CN201711282696.1A patent/CN108240480B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108240480A (en) | 2018-07-03 |
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Address after: No. 3281, HANGGANG 4th Road, xihanggang, Shuangliu District, Chengdu, Sichuan 610200 Patentee after: Sichuan Suke Fluid Control Equipment Co.,Ltd. Address before: No. 3281, Konggang 4th Road, Xihanggang, Shuangliu District, Chengdu, Sichuan, 610000 Patentee before: SICHUAN SUC FLOW CONTROL EQUIPMENT Co.,Ltd. |