CN205918915U - Butterfly valve that leakproofness is strong - Google Patents
Butterfly valve that leakproofness is strong Download PDFInfo
- Publication number
- CN205918915U CN205918915U CN201620961558.0U CN201620961558U CN205918915U CN 205918915 U CN205918915 U CN 205918915U CN 201620961558 U CN201620961558 U CN 201620961558U CN 205918915 U CN205918915 U CN 205918915U
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- China
- Prior art keywords
- valve
- disk seat
- medium runner
- valve plate
- valve body
- Prior art date
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- 238000007789 sealing Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012466 permeate Substances 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 14
- 239000012530 fluid Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to the field of valves, a butterfly valve that leakproofness is strong, including the valve body to and the valve plate of setting in the valve body, and with the valve rod axle that the valve plate is connected, there is the clamping ring location on the medium runner lateral wall in valve rod axle low reaches, and there is the disk seat location between clamping ring and the valve body, the disk seat is circumference unclosed's a becket, and the cross -section of disk seat is the U -shaped shape, and the U -shaped opening of disk seat bulges in the clamping ring and in being in the medium runner towards the radial outside of medium runner, the U -shaped bottom of disk seat. When this butterfly valve was in the closed condition, the outer margin of valve plate offseted with the U -shaped of disk seat bottom, and liquid in the medium runner can permeate to the U -shaped opening of disk seat in and provide a pressure that lasts, because the disk seat is circumference unclosed's a becket, this pressure makes the disk seat radially draw in in, laminated with the outer margin of valve plate more in the U -shaped bottom of disk seat, between disk seat and valve plate interference fit under this state promptly, and sealed effect is better.
Description
Technical field
This utility model is related to valve field, the strong butterfly valve of more particularly, to a kind of sealing.
Background technology
Butterfly valve is flap valve again, is a kind of simple regulating valve of structure, can be used for the on-off control of low pressure pipeline medium
Butterfly valve refers to that closure member (valve plate or butterfly plate) is disk, rotates to reach a kind of valve of open and close around valve shaft, valve can
For controlling all kinds such as empty gas and water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium
The flowing of fluid.But, existing butterfly valve has the following disadvantages: rigid gluing, sealing between the valve plate of butterfly valve and valve body, does not have
The space of flexible regulation, because thermal expansion easily stuck phenomenon between one side valve plate and valve body, causes valve plate not open；
Another aspect valve plate in the case of relatively opening and closing, the sealing contact surface of valve plate and valve body easily because abrasion in dynamic friction,
Substantially reduce the service life of valve plate.
Content of the invention
In order to solve the above problems, the purpose of this utility model is to provide a kind of sealing strong butterfly valve.
In order to realize above-mentioned purpose, this utility model employs following technical scheme:
A kind of strong butterfly valve of sealing, including valve body, and is arranged on the valve plate in valve body, and is connected with described valve plate
The stem shaft connecing；It is characterized in that: the section of described valve body is in annular, in the middle part of valve body, its axis direction is provided with medium flow field
Road, the side wall of medium runner is provided with locating shaft；Stem shaft is arranged on the opposite side wall of medium runner, locating shaft and valve
Bar axle is on same axis；Described valve plate is arranged in the medium runner of valve body, and one end of valve plate is fixed by connection member
On locating shaft, the other end of valve plate is fixed in stem shaft by connection member；The axis of described valve plate and medium runner
Axis is on two lines direction；It is positioned with trim ring on the medium runner side wall in stem shaft downstream, fixed between trim ring and valve body
There is valve seat position；Described valve seat is circumferential untight becket, and the section of valve seat is in u shape shape, and the u shape opening of valve seat is towards Jie
The radial outside in mass flow road, the u shape bottom of valve seat protrudes from trim ring and is in medium runner.
This utility model adopts technique scheme, and the valve body media flow passage side wall of this butterfly valve is positioned with trim ring, trim ring
It is positioned with valve seat and valve body between, the section of this valve seat is in u shape shape, and the u shape opening of valve seat is outside towards the footpath of medium runner
Side, the u shape bottom of valve seat protrudes from trim ring and is in medium runner.When medium fluid is liquid, the valve plate of butterfly valve is in
Under closed mode, the peripheral edge of valve plate is offseted with the u shape bottom of valve seat, and the liquid in medium runner can infiltrate into the u of valve seat
Shape opening is interior and provides a lasting pressure, and because valve seat is circumferential untight becket, this pressure makes valve seat radially draw in,
More fitted with the peripheral edge of valve plate in the u shape bottom of valve seat, i.e. interference fit between this state lower valve base and valve plate, sealing effect
Fruit is more preferably.
Brief description
Fig. 1 is schematic cross-section of the present utility model.
Fig. 2 is a portion enlarged drawing of Fig. 1.
Fig. 3 is side schematic view of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings, preferred embodiment of the present utility model is described in further detail.
A kind of butterfly valve as shown in Fig. 1 ~ 3, including butterfly valve assembly, and the actuator driving described butterfly valve assembly.Institute
State butterfly valve assembly and include valve body 1, and be arranged on the valve plate 2 in valve body 1, and the stem shaft 3 being connected with described valve plate 2.
Described actuator includes cylinder assembly 41, and is arranged on the transmission component 42 on the output shaft of cylinder assembly 41, transmission group
Part 42 is in transmission connection with the outer end of described stem shaft 3.
The section of described valve body 1 is in annular, in the middle part of valve body 1, its axis direction is provided with medium runner 11, valve body 1
Axial both ends are provided with the flange disk body 12 for being connected, flange disk body 12 and the casting of valve body 1 integrally connected with medium pipeline
Cause type.It is additionally provided with vapor chamber 13, and the steam channel 14 communicating with described vapor chamber 13, vapor chamber inside described valve body 1
13 is circumferentially disposed along the side wall of medium runner 11；Using this structure, it is (as carried on the back when room temperature is easy to the fluid crystallizing in medium fluid
The sour crude oil of scape technology indication), above-mentioned steam channel 14 can connect high-temperature steam, and it is right inside vapor chamber 13 that high-temperature steam is full of
Valve body 1 side wall is heated, thus lifting the fluid temperature (F.T.) through this butterfly valve, substantially reduces its crystalline polamer, is somebody's turn to do thus ensureing
The sealing effectiveness of butterfly valve.
Locating shaft 31 is provided with the side wall of described medium runner 11, locating shaft 31 is located on valve body 1 side wall and energy
Enough valve bodies 1 relatively circumferentially rotate, and are provided with positioning shaft sleeve 32, on the outer end of locating shaft 31 between locating shaft 31 and valve body 1 side wall
It is fixed with the positioning pressuring plate 33 for positioning described positioning shaft sleeve 32, and the positioning end cap 34 positioning described positioning pressuring plate 33.
Described stem shaft 3 is arranged on the opposite side wall of medium runner 11, and stem shaft 3 is located on valve body 1 side wall and being capable of relative valve
Body 1 circumferentially rotates, and is provided with limit shaft sleeve 35 and packing seal assembly between stem shaft 3 and valve body 1 side wall.Described filler sealing group
Part includes the filler pad 36 offseting with limit shaft sleeve 35, and is arranged on the two-layer filler 37 outside filler pad 36, and
It is arranged on the filler spacer ring 38 between two-layer filler 37, and cover 39 for positioning the filler of described filler 37, and for fixed
The hold-down grid 30 of position described filler set 39, hold-down grid 30 is fastened on valve body 1 by connection member (as bolt).Institute
State locating shaft 31 to be on same axis with stem shaft 3, valve plate 2 is arranged in the medium runner 11 of valve body 1, one end of valve plate 2
It is fixed on locating shaft 31 by connection member, the other end of valve plate 2 is fixed in stem shaft 3 by connection member.Above-mentioned knot
In structure, valve plate two ends pass through locating shaft and stem shaft positioning respectively, and locating shaft is positioned by axle sleeve, pressing plate and end cap, valve
Setting packing seal assembly positioning and limit shaft sleeve between bar axle and valve body, limit shaft sleeve is used for stem shaft is positioned, fills out
Filler in material black box is used for ensureing that the sealing between stem shaft and valve body, filler set and hold-down grid are used for described
Filler is positioned, and so that filler is fixed, and prevents filler from producing in the friction process long-term with described stem shaft and loosens, carries
Rise its sealing effectiveness；Said structure carries out stable position to the bascule of valve plate, makes the valve plate moving part of butterfly valve be difficult to give birth to
Produce medium to reveal and permeate, ensure valve plate motion, extend the service life of valve plate.
The axis of described valve plate 2 and the axis of medium runner 11 are on two lines direction, the medium in stem shaft 3 downstream
It is positioned with trim ring 21 on runner 11 side wall, between trim ring 21 and valve body 1, be positioned with valve seat 22.Described valve seat 22 is that circumference is unclosed
Becket, the section of valve seat 22 is in u shape shape, and the u shape opening of valve seat 22 is towards the radial outside of medium runner 11, valve seat 22
U shape bottom protrude from trim ring 21 and be in medium runner 11.In said structure, valve body 1 medium runner 11 side wall positions
There is trim ring 21, between trim ring 21 and valve body 1, be positioned with valve seat 22, the section of this valve seat 22 is in u shape shape, and the u shape of valve seat 22 is opened
Towards the radial outside of medium runner 11, the u shape bottom of valve seat 22 protrudes from trim ring 21 and is in medium runner 11 mouth.It is being situated between
When mass flow body is liquid, the valve plate 2 of butterfly valve is closed down, the u shape bottom phase of the peripheral edge of valve plate 2 and valve seat 22
Support, the liquid in medium runner 11 can infiltrate in the u shape opening of valve seat 22 and provide a lasting pressure, because valve seat 22 is
The untight becket of circumference, this pressure makes valve seat 22 radially draw in, and the u shape bottom of valve seat 22 is with the peripheral edge of valve plate 2 more
Stick on conjunction, i.e. interference fit between this state lower valve base 22 and valve plate 2, sealing effectiveness is more preferable.
It should be appreciated that above-mentioned specific embodiment of the present utility model is used only for exemplary illustration or explains this reality
With new principle, and do not constitute to restriction of the present utility model.Therefore, without departing from spirit and scope of the present utility model
In the case of any modification, equivalent substitution and improvement done etc., should be included within protection domain of the present utility model.Additionally,
This utility model claims are intended to fall into scope and border or this scope and border
Whole changes in equivalents and modification.
Claims (1)
1. the strong butterfly valve of a kind of sealing, including valve body, and is arranged on the valve plate in valve body, and is connected with described valve plate
Stem shaft；It is characterized in that: the section of described valve body is in annular, in the middle part of valve body, its axis direction is provided with medium flow field
Road, the side wall of medium runner is provided with locating shaft；Stem shaft is arranged on the opposite side wall of medium runner, locating shaft and valve
Bar axle is on same axis；Described valve plate is arranged in the medium runner of valve body, and one end of valve plate is fixed by connection member
On locating shaft, the other end of valve plate is fixed in stem shaft by connection member；The axis of described valve plate and medium runner
Axis is on two lines direction；It is positioned with trim ring on the medium runner side wall in stem shaft downstream, fixed between trim ring and valve body
There is valve seat position；Described valve seat is circumferential untight becket, and the section of valve seat is in u shape shape, and the u shape opening of valve seat is towards Jie
The radial outside in mass flow road, the u shape bottom of valve seat protrudes from trim ring and is in medium runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620961558.0U CN205918915U (en) | 2016-08-29 | 2016-08-29 | Butterfly valve that leakproofness is strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620961558.0U CN205918915U (en) | 2016-08-29 | 2016-08-29 | Butterfly valve that leakproofness is strong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918915U true CN205918915U (en) | 2017-02-01 |
Family
ID=57869197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620961558.0U Active CN205918915U (en) | 2016-08-29 | 2016-08-29 | Butterfly valve that leakproofness is strong |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113864468A (en) * | 2021-10-13 | 2021-12-31 | 上海一核阀门股份有限公司 | A kind of U-ring metal sealing butterfly valve and preparation method thereof |
| CN115111382A (en) * | 2021-03-18 | 2022-09-27 | 中国石油化工股份有限公司 | Shaft end seal for high-temperature butterfly valve |
-
2016
- 2016-08-29 CN CN201620961558.0U patent/CN205918915U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111382A (en) * | 2021-03-18 | 2022-09-27 | 中国石油化工股份有限公司 | Shaft end seal for high-temperature butterfly valve |
| CN113864468A (en) * | 2021-10-13 | 2021-12-31 | 上海一核阀门股份有限公司 | A kind of U-ring metal sealing butterfly valve and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |