CN108240480A - Hydraulic turbine adjustable vacuum destructive valve - Google Patents
Hydraulic turbine adjustable vacuum destructive valve Download PDFInfo
- Publication number
- CN108240480A CN108240480A CN201711282696.1A CN201711282696A CN108240480A CN 108240480 A CN108240480 A CN 108240480A CN 201711282696 A CN201711282696 A CN 201711282696A CN 108240480 A CN108240480 A CN 108240480A
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- CN
- China
- Prior art keywords
- valve
- vacuum degree
- flap
- hydraulic turbine
- vacuum
- 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.)
- Granted
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Classifications
-
- 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
-
- 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 adjusting apparatus, the vacuum degree adjusting apparatus includes vacuum degree adjustment block, adjust window, stop pin and handle, the vacuum degree adjustment block is sleeved on valve rod and positioned at spring top, the side of vacuum degree adjustment block is uniformly provided with several adjustment stations and several pin holes, stop pin is fixedly mounted on across pin hole on valve rod, window is adjusted to be mounted in valve body and positioned at the side of vacuum degree adjustment block, handle is inserted into adjustment station, rotation handle makes vacuum degree adjustment block adjustment spring distance of stretch out and draw back, so as to realize the adjusting of vacuum degree.The present invention realizes vacuum degree and is adjusted, can effectively prevent the vacuum degree variation phenomenon caused by pipe vibration by setting vacuum-ness regulator on air admission valve.
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 technology
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 flow
Sky, and then tail water is caused to recoil, so as to generate larger impact force 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, so as to play the role of protecting the hydraulic turbine.In normal work, need
It will be by spindle hole to runner epicoele tonifying Qi, to ensure the normal operation of runner.Air admission valve is one-way gas-compensating valve, main
It to be closed by compressed spring control valve, and be aided with rubber weather strip and be sealed.When inner cavity generates negative pressure of vacuum, in bullet
Valve is gradually opened under spring active force and carries out tonifying Qi.Existing air admission valve generally use oleo cushion, and vacuum degree is non-adjustable
Section, in use for some time or vacuum degree caused by pipe vibration changes, and buffering oil can be leaked gradually, cause environmental pollution.
Invention content
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
Valve seat and valve rod are equipped with, stem bottom passes through flap, and valve rod top is cased with spring, and the bottom of valve body is fixed with valve seat to be connected
It connects, vacuum degree adjusting apparatus is additionally provided on air admission valve, the vacuum degree adjusting apparatus includes vacuum degree adjustment block, adjustment window
Mouth, stop pin and handle, the vacuum degree adjustment block are sleeved on valve rod and positioned at spring top, the sides of vacuum degree adjustment block
It is uniformly provided with several adjustment stations and several pin holes, stop pin is fixedly mounted on across pin hole on valve rod, adjustment window peace
In valve body and positioned at the side of vacuum degree adjustment block, handle is inserted into adjustment station, and rotation handle makes vacuum degree adjustment block tune
Telescopic spring distance is saved, so as to realize the adjusting of vacuum degree.Further, on the valve rod and flap clearance fit and valve rod
Inclined-plane is machined 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, there are gap and pass through triangular form seal with elastometic washer between the valve seat and flap.
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 plug.
Further, damping coupling tube is equipped 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 advantages that：
(1) by air admission valve and secondary water-stop ball-cock assembly using modularized design, and pass through valve body and connect,
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) it by setting vacuum-ness regulator on air admission valve, realizes vacuum degree and is adjusted, and can effectively prevent
The only 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 makes 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, there is 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 there is anti-release of pressure rupture；
(6) by setting cushioned check valve at the top of air admission valve, it can prevent from generating shock during 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 from directly washing away flap, it is therefore prevented that flap causes to leak due to discontinuity.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the close-up schematic view of part A in Fig. 1；
Fig. 3 is the close-up schematic view of D parts in Fig. 2；
Fig. 4 is the close-up schematic view of E parts in Fig. 2；
Fig. 5 is the structure diagram of vacuum degree adjustment block of the present invention；
Fig. 6 is the close-up schematic view of part B in Fig. 1；
Fig. 7 is the close-up schematic view of C portion in Fig. 1；
Fig. 8 is the structure diagram of present invention damping coupling tube.
It is marked in figure：1st, air admission valve；2nd, secondary water-stop ball-cock assembly；3rd, flap；4th, triangular form rubber ring；5th, it hinders
Buddhist nun's coupling tube；6th, valve body；11st, valve rod；12nd, spring；13rd, valve seat；14th, ball-type adjusting pad；15th, nut；16th, split pin；17th, it is true
Reciprocal of duty cycle adjusting apparatus；171st, vacuum degree adjustment block；1711st, station is adjusted；1712nd, pin hole；172nd, window is adjusted；173rd, anti-rotation
Pin；18th, cushioned check valve；181st, air damping plug；182nd, damper.
Specific embodiment
As shown in Fig. 1~Fig. 8, the hydraulic turbine provided in this embodiment with adjustable vacuum destructive valve 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 come off；Inclined-plane is machined with 3 junction of flap in the valve rod 11 and 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 is connected so as to fulfill by air admission valve 1 and secondary water-stop ball-cock assembly 2.Such as Fig. 6 institutes
Show, there are the gap of a=0.5~0.7mm between the valve seat 13 and flap 3, and between valve seat 13 and flap 3 also use by
Triangular form rubber ring 4 seals made of explosion-proof fluorubber, has sealing effect good, the triangle rubber ring uses explosion-proof fluorubber
(VITON) material has the function of anti-release of pressure rupture.
The air admission valve 1 is equipped with vacuum degree adjusting apparatus 17, as shown in Figure 2 to 4, the vacuum degree adjustment dress
It puts 17 and is sleeved on valve including vacuum degree adjustment block 171, adjustment window 172, stop pin 173 and handle, the vacuum degree adjustment block 171
On bar 11 and positioned at 12 top of spring, the side of vacuum degree adjustment block 171 is uniformly provided with 8 adjustment stations 1711 and 4 bolts
Hole 1712, stop pin 173 are fixedly mounted on across pin hole 1712 on valve rod 11, and adjustment window 172 is mounted on valve by bolt
In body 6 and positioned at the side of vacuum degree adjustment block 171, handle is inserted into adjustment station 1711, and rotation handle makes vacuum degree adjustment block
171 adjustment spring, 12 distance of stretch out and draw back, so as to realize the adjusting of vacuum degree.
It is of the invention specific adjust vacuum degree workflow be：First secondary water-stop ball-cock assembly 2 is taken from valve body 6
Go out, open adjustment window 172, 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, handle is rotated, 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 counterclockwise reduces vacuum degree).After adjustment, stop pin 173 is inserted into bolt
It is locked in hole 1712 and with valve rod 11, the generation of vacuum degree variation phenomenon, Jin Erfang caused by effectively preventing pipe vibration
Only buffering oil leakage, prevents the pollution of the environment.
As shown in figure 4,11 top of valve rod of the air admission valve 1 is additionally provided with cushioned check valve 18, the buffering check
Valve 18 includes air damping plug 181 and damper 182, and damper 182 is located at one end of air damping plug 181, the buffering check
Shock is generated when valve 18 can prevent valve rapid-closing, make air admission valve 1 after the completion of tonifying Qi can returning quickly, and slowly close
It closes, and noiseless.
When mounted, damping coupling tube 5 is equipped between the air admission valve 1 and pipeline, and is opened in damping coupling tube 5
Have several equally distributed through-holes, structure is as shown in fig. 7, can avoid head from directly washing 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 protection scope of the present invention is not limited thereto, any
The transformation and replacement that are carried out based on technical solution provided by the present invention and inventive concept should all cover the protection model in the present 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 in that：Vacuum degree adjusting apparatus is additionally provided on air admission valve, the vacuum degree adjusting apparatus is adjusted including vacuum degree
Block, adjustment window, stop pin and handle, the vacuum degree adjustment block are sleeved on valve rod and positioned at spring top, vacuum degree tune
The side of monoblock is uniformly provided with several adjustment stations and several pin holes, stop pin are fixedly mounted on across pin hole on valve rod,
It adjusts window to be mounted in valve body and positioned at the side of vacuum degree adjustment block, handle is inserted into adjustment station, and rotation handle makes vacuum
Adjustment block adjustment spring distance of stretch out and draw back is spent, so as to realize the adjusting of vacuum degree.
2. the hydraulic turbine according to claim 1 adjustable vacuum destructive valve, it is characterised in that：Between the valve rod and flap
Gap coordinates and is machined with inclined-plane on valve rod with flap junction, and 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 plug.
7. the hydraulic turbine according to claim 1 adjustable vacuum destructive valve, it is characterised in that：The air admission valve with
Damping coupling tube is equipped 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 true CN108240480A (en) | 2018-07-03 |
| CN108240480B 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) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB710724A (en) * | 1951-12-10 | 1954-06-16 | Henry Seeler | Resuscitator |
| US20040187926A1 (en) * | 2002-05-20 | 2004-09-30 | Allen Thomas E. | 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 |
| CN103850854A (en) * | 2012-12-04 | 2014-06-11 | 哈尔滨盛迪电力设备有限公司 | Built-in air buffering air supplement device |
| CN104005900A (en) * | 2013-02-22 | 2014-08-27 | 哈尔滨盛迪电力设备有限公司 | Combined air cushioning air supplement device |
| CN205260849U (en) * | 2015-11-27 | 2016-05-25 | 哈尔滨电机厂有限责任公司 | Vacuum breaker valve |
| CN106246938A (en) * | 2016-09-30 | 2016-12-21 | 王瑞卿 | Combination adjustable elastic seals flap High Temperature High Pressure relief valve |
| CN106523726A (en) * | 2016-11-14 | 2017-03-22 | 江苏大学 | Two-phase fluid large-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
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB710724A (en) * | 1951-12-10 | 1954-06-16 | Henry Seeler | Resuscitator |
| US20040187926A1 (en) * | 2002-05-20 | 2004-09-30 | Allen Thomas E. | 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 |
| CN103850854A (en) * | 2012-12-04 | 2014-06-11 | 哈尔滨盛迪电力设备有限公司 | Built-in air buffering air supplement device |
| CN104005900A (en) * | 2013-02-22 | 2014-08-27 | 哈尔滨盛迪电力设备有限公司 | Combined air cushioning air supplement device |
| CN205260849U (en) * | 2015-11-27 | 2016-05-25 | 哈尔滨电机厂有限责任公司 | Vacuum breaker valve |
| CN106246938A (en) * | 2016-09-30 | 2016-12-21 | 王瑞卿 | Combination adjustable elastic seals flap High Temperature High Pressure relief valve |
| CN106523726A (en) * | 2016-11-14 | 2017-03-22 | 江苏大学 | Two-phase fluid large-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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108240480B (en) | 2019-08-16 |
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| CP03 | Change of name, title or address |
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. |
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