CN205226407U - Heavy -calibre zero friction butterfly valve - Google Patents
Heavy -calibre zero friction butterfly valve Download PDFInfo
- Publication number
- CN205226407U CN205226407U CN201521114725.XU CN201521114725U CN205226407U CN 205226407 U CN205226407 U CN 205226407U CN 201521114725 U CN201521114725 U CN 201521114725U CN 205226407 U CN205226407 U CN 205226407U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- seal ring
- sealing washer
- butterfly
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lift Valve (AREA)
Abstract
The utility model provides a heavy -calibre zero friction butterfly valve, water inlet department has the valve body to overhaul the sealing washer in the valve body, there is valve body work sealing washer in delivery port department, there is the butterfly plate to overhaul sealing washer and butterfly plate work sealing washer on the butterfly plate, the valve body overhauls there is the sliding fit clearance between sealing washer and the valve body drum, on the valve body drum of valve body maintenance sealing washer department there be along the axial rectangular hole of valve body the equipartition, the outer circumference equipartition that the valve body examined and repaired the sealing washer has the radial handle that passes rectangular hole, the valve body water inlet even has into water nozzle stub, the outer circumference equipartition of nozzle stub of intaking even has respectively the pneumatic cylinder that the radial handle that examines and repair the sealing washer with the valve body links to each other, advancing of pneumatic cylinder, the liquid outlet links respectively has the ring into drain pipe that appears, advance drain pipe lian youjin respectively, go out the liquid valve. The utility model discloses a valve body examine and repair the sealing washer be with the hydraulic cylinder drive of the outer circumference equipartition of nozzle stub of intaking along the axial of valve body before, the back slides, it is even at the circumferencial direction atress that the valve body examines and repair the sealing washer, can guarantee that valve body movable sealing ring slides after, along its axial before smoothly.
Description
Technical field
The utility model relates to rub butterfly valve, particularly a kind of heavy caliber zero of a kind of heavy caliber zero and to rub the body movable sealing ring drive unit of butterfly valve.
Background technique
Butterfly valve is the valve that butterfly plate 90-degree rotation in valve body realizes valve opening and closedown.By the sealing pair be made up of butterfly plate seal ring and valve seals between butterfly plate and valve body, the larger sealability of seal pressure between sealing pair is better, butterfly valve is when butterfly plate 90-degree rotation opens and closes, friction is produced because of seal pressure between butterfly plate seal ring and valve seals, seal pressure is larger, frictional force when butterfly valve opens and closes between butterfly plate seal ring and valve seals is larger, not only improve the moment that butterfly valve opens and closes, also cause butterfly plate seal ring and valve seals scratch and wear and tear, seal ring scratch and wearing and tearing will cause butterfly valve to reveal.
In order to eliminate the friction of butterfly valve when switch between butterfly plate seal ring and valve seals, in prior art, a kind of butterfly valve with working seal pair and maintenance sealing pair is disclosed in Chinese patent ZL200620137380.4, this butterfly valve has cylinder valve, valve body front portion is water outlet, valve body rear portion is water intake, water inlet in valve body has valve body to overhaul seal ring, water outlet in valve body has valve body working seal circle, valve body there is valve shaft, valve shaft in valve body is connected with butterfly plate, butterfly plate has and overhauls the butterfly plate that seal ring and valve body working seal circle match respectively with valve body and overhaul seal ring and butterfly plate working seal circle, valve body there is the cylindrical shape oil hydraulic cylinder along valve body cylinder, circle tube piston is had in cylindrical shape oil hydraulic cylinder, valve body maintenance seal ring is connected on circle tube piston.
Can forward and backward slip on cylinder valve with hydraulically powered body movable sealing ring, in the closed position at butterfly plate, during with hydraulic driving body movable sealing ring along its axial forward and backward slip, body movable sealing ring and butterfly plate can be made to overhaul seal ring merge and separate, when butterfly plate 90-degree rotation open and close process in, zero friction can be realized and reduce sealing pair open and close moment.Above-mentioned maintenance sealing pair is a kind of zero friction sealed pair.
Some butterfly valve is the zero friction butterfly valve with above-mentioned zero friction sealed pair, and some butterfly valve has the secondary zero friction butterfly valve with overhauling sealing pair of working seal, and maintenance sealing pair is wherein above-mentioned zero friction sealed pair.Zero friction sealed pair has body movable sealing ring.
The rub body movable sealing ring drive unit of butterfly valve of above-mentioned heavy caliber zero is ring oil hydraulic cylinder.
Above-mentioned heavy caliber zero rubs butterfly valve in use, with hydraulic driving toroidal piston ring oil hydraulic cylinder along its axially forward and backward move time, ring oil hydraulic cylinder is at the circumferential pressure skewness of toroidal piston end face, toroidal piston is made to cause toroidal piston to tilt because of discontinuity, generation toroidal piston moves and is subject to the phenomenon of jam in ring oil hydraulic cylinder, affect body movable sealing ring along its axially forward and backward slip, greatly affect the use of zero friction butterfly valve.The body movable sealing ring drive unit of this ring oil hydraulic cylinder and toroidal piston composition, can not ensure that body movable sealing ring is along its axially forward and backward smooth and easy slip.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, propose a kind of have can ensure that body movable sealing ring to rub butterfly valve along the heavy caliber zero of its axial drive unit of forward and backward smooth and easy slip.
The utility model realizes with the following method.
Heavy caliber zero butterfly valve that rubs has cylinder valve, valve body front portion is water outlet, valve body rear portion is water intake, water inlet in valve body has valve body to overhaul seal ring, water outlet in valve body has valve body working seal circle, valve body there is valve shaft, valve shaft in valve body is connected with butterfly plate, butterfly plate has and overhauls the butterfly plate that seal ring and valve body working seal circle match respectively with valve body and overhaul seal ring and butterfly plate working seal circle, be slidably matched between valve body maintenance seal ring and valve body cylinder gap, seal ring is had between the excircle of valve body maintenance seal ring and valve body inner circumference, the valve body cylinder at valve body maintenance seal ring place is evenly equipped with four ~ 20 along the strip hole of valve body axis, the excircle of valve body maintenance seal ring is evenly equipped with the radial handle through strip hole,
Valve inleting water mouth is connected with into water short tube, the oil hydraulic cylinder that the uniform quantity being connected with the radial handle overhauling seal ring with valve body of excircle of water inlet short tube is identical, the axis of oil hydraulic cylinder parallels with the axis of valve body, the radial handle that uniform hydraulic cylinder piston rod and uniform valve body overhaul seal ring is connected respectively one by one, the liquid inlet and outlet of oil hydraulic cylinder is connected with ring liquid in-out pipe respectively, and liquid in-out pipe is connected with liquid inlet and outlet valve respectively.
Be slidably matched between valve body maintenance seal ring of the present utility model and valve body cylinder gap, valve body maintenance seal ring can with the uniform Driven by Hydraulic Cylinder of excircle of water inlet short tube in valve body along the forward and backward slip of the axis of valve body, valve body maintenance seal ring can overhaul seal ring with butterfly plate respectively along the forward and backward slip of axis of valve body and merges and separate, valve body maintenance seal ring and butterfly plate overhaul seal ring and merge the sealing that can realize overhauling sealing pair, and valve body overhauls seal ring and butterfly plate and overhauls seal ring and separate and can realize sealing pair zero friction in butterfly valve opening and closing process.
The quantity of strip hole uniform on valve body maintenance seal ring place valve body cylinder, the quantity of the radial handle of valve body maintenance seal ring with outer Zhou Junbu, the quantity of the oil hydraulic cylinder that water inlet short tube excircle is uniform can be chosen according to the heavy caliber zero pressure and other parameters condition of medium in the bore of butterfly valve, butterfly valve place pipeline that rubs.
Valve body of the present utility model maintenance seal ring is that valve body maintenance seal ring, in circumferencial direction uniform force, can ensure that body movable sealing ring is along its axially forward and backward smooth slip with the forward and backward slip of axis of the uniform Driven by Hydraulic Cylinder of the excircle of water inlet short tube along valve body
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is that a kind of heavy caliber zero proposed according to scheme of the invention of the present utility model rubs the schematic front view of butterfly valve;
Fig. 2 is the cross-sectional schematic of bowing of Fig. 1;
Fig. 3 be Fig. 2 Large diameter zero rub butterfly valve close time I place enlarged diagram;
Fig. 4 is that Fig. 2 Large diameter zero rubs the I place enlarged diagram of butterfly valve in switching process;
Fig. 5 is II place enlarged diagram in Fig. 2.
Embodiment
In Fig. 1 ~ Fig. 4, heavy caliber zero butterfly valve that rubs has cylinder valve 1, valve body front portion is water outlet 2, valve body rear portion is water intake 3, water inlet in valve body has valve body to overhaul seal ring 4, water outlet in valve body has valve body working seal circle 5, valve body there is valve shaft 6, valve shaft in valve body is connected with butterfly plate 7, butterfly plate has and overhauls the butterfly plate that seal ring and valve body working seal circle match respectively with valve body and overhaul seal ring 8 and butterfly plate working seal circle 9, be slidably matched between valve body maintenance seal ring and valve body cylinder gap, seal ring 10 is had between the excircle of valve body maintenance seal ring and valve body inner circumference, the valve body cylinder at valve body maintenance seal ring place is evenly equipped with ten strip holes 11 along valve body axis, the excircle of valve body maintenance seal ring is evenly equipped with the radial handle 12 through strip hole, valve inleting water mouth is connected with into water short tube 13, the excircle of water inlet short tube is uniform to be connected with ten and to overhaul the identical oil hydraulic cylinder 14 of the quantity of the radial handle of seal ring with valve body, the axis of oil hydraulic cylinder parallels with the axis of valve body, the radial handle that uniform hydraulic cylinder piston rod 15 and uniform valve body overhaul seal ring is connected respectively one by one, entering of oil hydraulic cylinder, liquid outlet is connected with ring liquid in-out pipe 16 respectively, 17, enter, drain pipe is connected with liquid in-out valve 18 respectively, 19.
Heavy caliber zero rubs butterfly valve in use, the scene at the butterfly valve place that rubs at heavy caliber zero, and hydraulic cylinder piston rod stretches out the state with indentation according to the observation, can know the forward and backward position of valve body maintenance seal ring.But above-mentioned heavy caliber zero rubs, butterfly valve can not know the forward and backward position of valve body maintenance seal ring a long way off.In order to the forward and backward position of valve body maintenance seal ring also can be known a long way off, can position sensor between hydraulic cylinder piston rod and cylinder body.
In Fig. 5, the cylinder body 21 of oil hydraulic cylinder is connected with switch bracket 22, switch bracket has forward and backward proximity switch 23,24, hydraulic cylinder piston rod has the contact 20 of matching with proximity switch.
During use, hydraulic cylinder piston rod is stretching out with in two of indentation states, and forward and backward proximity switch can be triggered respectively in contact, and forward and backward proximity switch sends two signals respectively, represents that valve body maintenance seal ring is in forward and backward position.
Claims (2)
1. a heavy caliber zero rubs butterfly valve, there is cylinder valve, valve body front portion is water outlet, valve body rear portion is water intake, water inlet in valve body has valve body to overhaul seal ring, water outlet in valve body has valve body working seal circle, valve body there is valve shaft, valve shaft in valve body is connected with butterfly plate, butterfly plate has and overhauls the butterfly plate that seal ring and valve body working seal circle match respectively with valve body and overhaul seal ring and butterfly plate working seal circle, it is characterized in that: be slidably matched between valve body maintenance seal ring and valve body cylinder gap, seal ring is had between the excircle of valve body maintenance seal ring and valve body inner circumference, the valve body cylinder at valve body maintenance seal ring place is evenly equipped with four ~ 20 strip holes along valve body axis, the excircle of valve body maintenance seal ring is evenly equipped with the radial handle through strip hole, valve inleting water mouth is connected with into water short tube, the oil hydraulic cylinder that the uniform quantity being connected with the radial handle overhauling seal ring with valve body of excircle of water inlet short tube is identical, the axis of oil hydraulic cylinder parallels with the axis of valve body, the radial handle that uniform hydraulic cylinder piston rod and uniform valve body overhaul seal ring is connected respectively one by one, entering of oil hydraulic cylinder, liquid outlet is connected with ring liquid in-out pipe respectively, enter, drain pipe is connected with liquid in-out valve respectively.
2. to rub butterfly valve by heavy caliber zero according to claim 1, it is characterized in that: described hydraulic cylinder piston rod has contact, the cylinder body of oil hydraulic cylinder is connected with switch bracket, switch bracket has forward and backward proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114725.XU CN205226407U (en) | 2015-12-30 | 2015-12-30 | Heavy -calibre zero friction butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114725.XU CN205226407U (en) | 2015-12-30 | 2015-12-30 | Heavy -calibre zero friction butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226407U true CN205226407U (en) | 2016-05-11 |
Family
ID=55901474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521114725.XU Expired - Fee Related CN205226407U (en) | 2015-12-30 | 2015-12-30 | Heavy -calibre zero friction butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594304A (en) * | 2016-12-30 | 2017-04-26 | 能发伟业铁岭阀门股份有限公司 | Dual-sealing butterfly valve with overhaul sealing ring driven by servo motor |
| CN112963555A (en) * | 2021-02-08 | 2021-06-15 | 株洲南方阀门股份有限公司 | Double-sealing valve with telescopic cylinder driving valve seat to move |
-
2015
- 2015-12-30 CN CN201521114725.XU patent/CN205226407U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594304A (en) * | 2016-12-30 | 2017-04-26 | 能发伟业铁岭阀门股份有限公司 | Dual-sealing butterfly valve with overhaul sealing ring driven by servo motor |
| CN112963555A (en) * | 2021-02-08 | 2021-06-15 | 株洲南方阀门股份有限公司 | Double-sealing valve with telescopic cylinder driving valve seat to move |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205226407U (en) | Heavy -calibre zero friction butterfly valve | |
| CN204717039U (en) | Fixing ball valve is opened and closed without friction | |
| CN203743436U (en) | Mechanical sealing device for salt slurry pump with large shaft diameter | |
| CN202691122U (en) | Top entry type online maintenance ball valve | |
| CN208703555U (en) | Dual-purpose charge gun | |
| CN203067799U (en) | Two-way sealing butterfly valve with large caliber and zero friction | |
| CN108870064A (en) | Dual-purpose charge gun | |
| CN204004467U (en) | A kind of zero friction large-diameter butterfly valve | |
| CN204985417U (en) | Prevent grinding partially separation and reunion main pump | |
| CN205136627U (en) | Sampling valve | |
| CN204784817U (en) | Special ball valve of card pressure formula gas | |
| CN203395340U (en) | Low-resistance direct-flowing type hydraulic control valve | |
| CN204805640U (en) | Energy -conserving noise -eliminated check valve | |
| CN201779296U (en) | Large caliber ball valve with three-dimensional adjustable valve body seal ring | |
| CN205330901U (en) | Convenient hydraulic pressure manual pump of dismantling | |
| CN202791134U (en) | Plug device of water inlet pipe and water outlet pipe of automobile radiator | |
| CN201621302U (en) | Movable valve seal ring butterfly valve | |
| CN205036871U (en) | Cold wind air pressure release valove that is difficult for jamming | |
| CN204140897U (en) | A kind of combined seal ring zero rubs butterfly valve | |
| KR101388835B1 (en) | Cone valae | |
| CN207316441U (en) | A kind of control valve of electronics lubricating oil pump | |
| CN205226403U (en) | Zero -friction large -diameter butterfly valve | |
| CN204755948U (en) | Portable metal of disk seat butterfly valve sealed firmly | |
| CN102213321B (en) | Dual seal water-filling butterfly valve | |
| CN202833416U (en) | Hydraulic reciprocating sealing leakage recovery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20201230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |