CN208011000U - A kind of No leakage hydraulic cushion vacuum breaking aeration valve - Google Patents
A kind of No leakage hydraulic cushion vacuum breaking aeration valve Download PDFInfo
- Publication number
- CN208011000U CN208011000U CN201820116501.XU CN201820116501U CN208011000U CN 208011000 U CN208011000 U CN 208011000U CN 201820116501 U CN201820116501 U CN 201820116501U CN 208011000 U CN208011000 U CN 208011000U
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- valve
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- valve plate
- cylinder
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- 238000005273 aeration Methods 0.000 title claims abstract description 28
- 239000000872 buffer Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
- 238000013022 venting Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 239000010720 hydraulic oil Substances 0.000 description 7
- 101100234547 Caenorhabditis elegans rod-1 gene Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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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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- Details Of Valves (AREA)
Abstract
The utility model provides a kind of No leakage hydraulic cushion vacuum breaking aeration valve；Hydraulic cylinder, the valve plate being arranged by the aeration valve, hydraulic cylinder is mounted on valve plate, it is acted together with valve plate, being slidingly sealed positioned at the inside of hydraulic cushion chamber between hydraulic cylinder bottom and valve rod, it ensure that being fully sealed in hydraulic cylinder, hydraulic cushion oil is in fully sealed position, avoids sealing wear leakage, improves the service life of making-up air device；And, the throttle valve of aeration valve setting, improve valve plate closed position buffering effect, reduce valve plate and hits the noise generated with valve body, supporting sleeve has not only acted as the effect of supporting cylinder, and radial load when also balancing valve plate switch improves the fatigue life of making-up air device, simultaneously, the spring of aeration valve setting, makes axial force be balanced；In addition, the aeration valve is simple in structure, reasonable design securely and reliably effectively reduces the security risk in hydraulic turbine operation.
Description
Technical field
The utility model is related to a kind of No leakage hydraulic cushion vacuum breaking aeration valves, belong to turbine equipment technology neck
Domain.
Background technology
Currently, the making-up air device of hydraulic turbine setting is frequently with hydraulic cushion, hydraulic cylinder is fixed on valve body, and valve rod is fixed on
On valve plate, hydraulic oil is full of in hydraulic cylinder, when inside runner vacuum occur and needing tonifying Qi, valve rod is moved together with valve plate,
Hydraulic oil buffers valve plate speed, it is ensured that in frequent tonifying Qi, valve plate does not generate strong shock with valve seat.
Since valve rod and valve plate are integrally connected movement, hydraulic cylinder bottom must be provided with mobile sealing with valve rod mating part,
Sealing necessarily leads to abrasion after operation a period of time, and hydraulic oil can gradually leak outside in hydraulic cylinder, when the hydraulic pressure in hydraulic cylinder
After oily all leakages, the pooling feature of making-up air device fails, and when working on, valve plate can occur strong metal with valve seat and hit
It hits, this not only generates powerful noise, but also the damage of meeting acceleration components, while bringing security risk to hydraulic turbine operation.
Utility model content
A kind of No leakage hydraulic cushion vacuum breaking is provided purpose of the utility model is to solve the above problem
Aeration valve；Hydraulic cylinder, the valve plate being arranged by the aeration valve, hydraulic cylinder are mounted on valve plate, are acted together with valve plate, hydraulic cylinder
Being slidingly sealed positioned at the inside of hydraulic cushion chamber between bottom and valve rod, ensure that being fully sealed in hydraulic cylinder, hydraulic cushion
Oil is in fully sealed position, avoids sealing wear leakage, improves the service life of making-up air device；Moreover, the aeration valve is set
The throttle valve set improves valve plate in the buffering effect of closed position, reduces valve plate and hit the noise generated, support with valve body
Set has not only acted as the effect of supporting cylinder, and radial load when also balancing valve plate switch improves the tired longevity of making-up air device
Life, meanwhile, the spring of aeration valve setting makes axial force be balanced；In addition, the aeration valve is simple in structure, and reasonable design, peace
It is complete reliable, effectively reduce the security risk in hydraulic turbine operation.
In order to achieve the above object, the utility model is realized by following technological means.
A kind of No leakage hydraulic cushion vacuum breaking aeration valve, it is by valve rod, valve body, supporting sleeve, upper cylinder cover, stem shaft
Watt, valve stem seal, hydraulic cylinder, buffer board, valve plate, pressing plate, primary seal, lower cylinder cap, guidance tape, piston seal, throttle section
Composition, it is characterized in that：Valve rod upper end is provided with port, and valve rod bottom end is provided with oil-through-hole, boss is provided in the middle part of valve rod,
It is provided with buffer board on boss, venting channels, logical oily channel are provided in valve rod, mutually fixation connects valve rod with valve body by nut
It connects, valve rod lower end, spring are packed into hydraulic cylinder, and valve rod lower end both sides are connected by guidance tape, piston seal with hydraulic cylinder, valve
Body is mutually fixedly connected by bolt with supporting sleeve, and hydraulic cylinder upper end is provided with upper cylinder cover, valve rod bearing shell, valve stem seal, hydraulic cylinder
Lower end is provided with lower cylinder cap, and lower cylinder cap lower end is provided with throttle valve, and hydraulic cylinder is connected by cylinder body bearing shell with supporting sleeve, hydraulic pressure
Cylinder is connected by bolt with valve plate, and primary seal 14, pressing plate are provided on valve plate, and hydraulic cylinder, upper cylinder cover, lower cylinder cap, attachment are logical
It crosses bolt and is assemblied in one with valve plate, to move axially component.
Being slidingly sealed between the valve rod bottom end and hydraulic cylinder is formed by liquid positioned at hydraulic cylinder, upper cylinder cover, lower cylinder cap
Press the inside of cushion chamber.
The lower cylinder cap lower end is provided with throttle valve, and when valve is closed to close to closed positions, throttle valve stretches into valve
In the oil-through-hole of bar bottom end, valve plate slows, and mitigates the metal strike of valve plate and valve body.
When the valve plate switchs, the gas in hydraulic cylinder passes through the sucking of valve rod top port, discharge.
The valve body shape is truncated conical shape, and venthole is arranged in the conical surface.
Operation principle：First, when valve plate lower vacuum degree is not up to unlatching value, valve plate is in fully closed under the action of the spring
Position, valve plate upper air cannot enter lower part；Then, when valve plate lower vacuum degree, which increases, reaches unlatching value, valve plate is in bullet
Under the collective effect of spring and atmospheric pressure, valve plate is opened and is moved down, and valve plate upper air is formed by valve plate and valve body
Circular passage enters lower part, reaches tonifying Qi purpose；Then, after valve plate lower vacuum degree reduces, the air on valve plate is acted on
Pressure reduces, and valve plate is under the collective effect of spring and atmospheric pressure, valve plate upward closing direction movement, valve plate upper air into
The tolerance for entering lower part reduces.Finally, when valve plate lower vacuum degree further declines and less than unlatching value, valve plate returns to close stance
It sets.
The utility model mainly has the advantages that：
1, hydraulic cylinder, the valve plate of aeration valve setting, hydraulic cylinder are mounted on valve plate, are acted together with valve plate, hydraulic cylinder
Being slidingly sealed positioned at the inside of hydraulic cushion chamber between bottom and valve rod, ensure that being fully sealed in hydraulic cylinder, hydraulic cushion
Oil is in fully sealed position, avoids sealing wear leakage, improves the service life of making-up air device.
2, the throttle valve of aeration valve setting, improves valve plate in the buffering effect of closed position, reduces valve plate and valve
Body hits the noise generated, and supporting sleeve has not only acted as the effect of supporting cylinder, also balances radial load when valve plate switch
The fatigue life of making-up air device is improved, meanwhile, the spring of aeration valve setting makes axial force be balanced.
3, the aeration valve is simple in structure, reasonable design, securely and reliably, effectively reduces the security risk in hydraulic turbine operation.
Description of the drawings
Attached drawing 1 is a kind of installation condition schematic diagram of No leakage hydraulic cushion vacuum breaking aeration valve of the utility model.
Attached drawing 2 is a kind of No leakage hydraulic cushion vacuum breaking aeration valve of the utility model in unlatching middle of stroke shape
State tonifying Qi schematic diagram.
Attached drawing 3 is that a kind of tonifying Qi that is shown in a fully open operation of No leakage hydraulic cushion vacuum breaking aeration valve of the utility model is shown
It is intended to.
Attached drawing 4 is a kind of No leakage hydraulic cushion vacuum breaking aeration valve of the utility model in closing middle of stroke shape
State tonifying Qi schematic diagram.
As Figure 1-Figure 4, various pieces are indicated by following Arabic numerals in figure：
Valve rod -1, nut -2, valve body -3, supporting sleeve -4, upper cylinder cover -5, valve rod bearing shell -6, valve stem seal -7, spring -8,
Hydraulic cylinder -9, buffer board -10, cylinder body bearing shell -11, valve plate -12, pressing plate -13, primary seal -14, lower cylinder cap -15, guidance tape -16,
Piston seal -17, throttle valve -18.
With reference to embodiment and Figure of description, the utility model is described in further detail：
Specific implementation mode
Embodiment
As Figure 1-Figure 4, a kind of No leakage hydraulic cushion vacuum breaking aeration valve, it by valve rod 1, nut 2, valve body 3,
Supporting sleeve 4, upper cylinder cover 5, valve rod bearing shell 6, valve stem seal 7, spring (8), hydraulic cylinder 9, buffer board 10, valve plate 12, pressing plate 13, master
Sealing 14, lower cylinder cap 15, guidance tape 16, piston seal 17, throttle valve 18 form.
As Figure 1-Figure 4,1 upper end of valve rod is provided with port, and 1 bottom end of valve rod is provided with oil-through-hole, 1 middle part of valve rod
It is provided with boss, buffer board 10 is provided on boss, venting channels, logical oily channel are provided in valve rod 1, valve rod 1 passes through nut 2
It is fixedly connected with 3 phase of valve body, 1 lower end of valve rod, spring 8 are packed into hydraulic cylinder 9, and 1 lower end both sides of valve rod pass through guidance tape 16, piston
Sealing 17 is connected with hydraulic cylinder 9, and valve body 3 is fixedly connected by bolt with 4 phase of supporting sleeve, and 9 upper end of hydraulic cylinder is provided with upper cylinder half
Lid 5, valve rod bearing shell 6, valve stem seal 7,9 lower end of hydraulic cylinder are provided with lower cylinder cap 15, and lower 15 lower end of cylinder cap is provided with throttle valve 18,
Hydraulic cylinder 9 is connected by cylinder body bearing shell 11 with supporting sleeve 4, and hydraulic cylinder 9 is connected by bolt with valve plate 12, is set on valve plate 12
It is equipped with primary seal 14, pressing plate 13, hydraulic cylinder 9, upper cylinder cover 5, lower cylinder cap 15, attachment are assemblied in one by bolt and valve plate 12,
To move axially component.
Being slidingly sealed positioned at 15 hydraulic cylinder 9, upper cylinder cover 5, lower cylinder cap shapes between 1 bottom end of valve rod and hydraulic cylinder 9
At hydraulic cushion chamber inside.
15 lower end of lower cylinder cap is provided with throttle valve 18, when valve is closed to close to closed positions, throttle valve 18
It stretches into the oil-through-hole of 1 bottom end of valve rod, valve plate 12 slows, and mitigates the metal strike of valve plate 12 and valve body 3.
When the valve plate 12 switchs, the gas in hydraulic cylinder 9 passes through 1 top port sucking of valve rod, discharge.
3 shape of valve body is truncated conical shape, and venthole is arranged in the conical surface.
As shown in Fig. 2, when 12 lower vacuum degree increase of valve plate to a certain extent after, the hydraulic oil on 9 top of hydraulic cylinder passes through
1 lower through-hole of valve rod enters 9 cavity of resorption of hydraulic cylinder, and the gas in hydraulic cylinder 9 is discharged by 1 upper through-hole of valve rod, valve plate 12 and liquid
Cylinder pressure 9 is moved down into middle of stroke position, and extraneous gas is by 3 upper vent hole of valve body through valve plate 12 and the opening of valve body 3 along figure
Show that dotted line and arrow direction enter on the downside of valve plate, reaches a small amount of tonifying Qi purpose.
As shown in figure 3, after valve plate lower vacuum degree increases to higher degree, the hydraulic oil on 9 top of hydraulic cylinder passes through valve
1 lower through-hole of bar fully enters 9 cavity of resorption of hydraulic cylinder, and has portion gas to enter cavity of resorption, and the gas in hydraulic cylinder 9 passes through valve rod 1
Upper through-hole is discharged, and valve plate 12 and hydraulic cylinder 9 are moved down into standard-sized sheet travel position, and extraneous gas passes through 3 upper vent hole of valve body
Enter on the downside of valve plate along diagram dotted line and arrow direction through valve plate 12 and the opening of valve body 3, reaches a large amount of tonifying Qi purposes.
As shown in figure 4, after 12 lower vacuum degree of valve plate reduces to a certain extent, the hydraulic oil of 9 lower part of hydraulic cylinder passes through
1 lower through-hole of valve rod enters 9 epicoele of hydraulic cylinder, and the gas in hydraulic cylinder 9 is sucked by 1 upper through-hole of valve rod, valve plate 12 and liquid
Cylinder pressure 9 is moved upwards up to middle of stroke position, and extraneous gas is by 3 upper vent hole of valve body through valve plate 12 and the opening of valve body 3 along figure
Show that dotted line and arrow direction enter the downside of valve plate 12, air compensation at this time reduces, when valve plate 12 be moved upwards up to close to it is fully closed when,
The throttle valve 18 of lower 15 bottom of cylinder cap stretches into the through-hole of 1 bottom of valve rod, and flow area reduces, and hydraulic oil flows to the speed of epicoele
Reduce, the movement speed of valve plate 12 further decreases, and has achieved the purpose that reduce valve plate 12 and 3 sealing surface metal strike of valve body.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the right of the utility model.
Claims (5)
1. a kind of No leakage hydraulic cushion vacuum breaking aeration valve, it is by valve rod (1), valve body (3), supporting sleeve (4), upper cylinder cover
(5), valve rod bearing shell (6), valve stem seal (7), hydraulic cylinder (9), buffer board (10), valve plate (12), pressing plate (13), primary seal
(14), lower cylinder cap (15), guidance tape (16), piston seal (17), throttle valve (18) part form, it is characterized in that：On valve rod (1)
End is provided with port, and valve rod (1) bottom end is provided with oil-through-hole, is provided with boss in the middle part of valve rod (1), is provided on boss slow
Punching (10), is provided with venting channels, logical oily channel in valve rod (1), and valve rod (1) passes through nut (2) and valve body (3) mutually fixed company
It connects, valve rod (1) lower end, spring (8) are packed into hydraulic cylinder (9), and valve rod (1) lower end both sides pass through guidance tape (16), piston seal
(17) it is connected with hydraulic cylinder (9), valve body (3) is mutually fixedly connected by bolt with supporting sleeve (4), the setting of hydraulic cylinder (9) upper end
There are upper cylinder cover (5), valve rod bearing shell (6), valve stem seal (7), hydraulic cylinder (9) lower end to be provided with lower cylinder cap (15), lower cylinder cap (15)
Lower end is provided with throttle valve (18), and hydraulic cylinder (9) is connected by cylinder body bearing shell (11) with supporting sleeve (4), and hydraulic cylinder (9) passes through
Bolt is connected with valve plate (12), is provided with primary seal (14), pressing plate (13) on valve plate (12), hydraulic cylinder (9), upper cylinder cover (5),
Lower cylinder cap (15), attachment are assemblied in one by bolt and valve plate (12), to move axially component.
2. a kind of No leakage hydraulic cushion vacuum breaking aeration valve according to claim 1, it is characterized in that：Valve rod (1) bottom
Being slidingly sealed between end and hydraulic cylinder (9) is formed by hydraulic cushion chamber positioned at hydraulic cylinder (9), upper cylinder cover (5), lower cylinder cap (15)
Inside.
3. a kind of No leakage hydraulic cushion vacuum breaking aeration valve according to claim 1, it is characterized in that：Lower cylinder cap (15)
Lower end is provided with throttle valve (18), and when valve is closed to close to closed positions, throttle valve (18) stretches into the logical of valve rod (1) bottom end
In oilhole, valve plate (12) slow, and mitigate the metal strike of valve plate (12) and valve body (3).
4. a kind of No leakage hydraulic cushion vacuum breaking aeration valve according to claim 1, it is characterized in that：Valve plate (12) is opened
Guan Shi, the gas in hydraulic cylinder (9) pass through the sucking of valve rod (1) top port, discharge.
5. a kind of No leakage hydraulic cushion vacuum breaking aeration valve according to claim 1, it is characterized in that：Valve body (3) is outside
Shape is truncated conical shape, and venthole is arranged in the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820116501.XU CN208011000U (en) | 2018-01-17 | 2018-01-17 | A kind of No leakage hydraulic cushion vacuum breaking aeration valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820116501.XU CN208011000U (en) | 2018-01-17 | 2018-01-17 | A kind of No leakage hydraulic cushion vacuum breaking aeration valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208011000U true CN208011000U (en) | 2018-10-26 |
Family
ID=63884200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820116501.XU Withdrawn - After Issue CN208011000U (en) | 2018-01-17 | 2018-01-17 | A kind of No leakage hydraulic cushion vacuum breaking aeration valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208011000U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056690A (en) * | 2018-01-17 | 2019-07-26 | 秦皇岛森润滋科技有限公司 | A kind of No leakage hydraulic cushion vacuum breaking aeration valve |
| CN110107693A (en) * | 2019-04-03 | 2019-08-09 | 杭州富春江水电设备有限公司 | A kind of air admission valve |
| CN112354702A (en) * | 2020-10-31 | 2021-02-12 | 泰州市龙腾换热设备制造厂 | Hydraulic centrifugal barrel rotating support shaft |
-
2018
- 2018-01-17 CN CN201820116501.XU patent/CN208011000U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056690A (en) * | 2018-01-17 | 2019-07-26 | 秦皇岛森润滋科技有限公司 | A kind of No leakage hydraulic cushion vacuum breaking aeration valve |
| CN110056690B (en) * | 2018-01-17 | 2024-04-09 | 秦皇岛森润滋科技有限公司 | Leakless hydraulic buffer vacuum damage air compensating valve |
| CN110107693A (en) * | 2019-04-03 | 2019-08-09 | 杭州富春江水电设备有限公司 | A kind of air admission valve |
| CN110107693B (en) * | 2019-04-03 | 2021-08-24 | 杭州富春江水电设备有限公司 | Vacuum breaker valve |
| CN112354702A (en) * | 2020-10-31 | 2021-02-12 | 泰州市龙腾换热设备制造厂 | Hydraulic centrifugal barrel rotating support shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181026 Effective date of abandoning: 20240409 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181026 Effective date of abandoning: 20240409 |