CN208900734U - A kind of high temperature three-eccentric-butterfly-valve - Google Patents
A kind of high temperature three-eccentric-butterfly-valve Download PDFInfo
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- CN208900734U CN208900734U CN201821633463.1U CN201821633463U CN208900734U CN 208900734 U CN208900734 U CN 208900734U CN 201821633463 U CN201821633463 U CN 201821633463U CN 208900734 U CN208900734 U CN 208900734U
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- valve
- support bracket
- valve rod
- valve body
- butterfly
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Abstract
The utility model provides a kind of high temperature three-eccentric-butterfly-valve, its valve rod that can solve existing three-eccentric-butterfly-valve is mounted on valve body by the bearing being built in valve body, the problem of when valve works at high temperature, built-in bearing is easy to locking valve rod, influences the normal use of valve.It includes valve body and valve rod, and valve rod passes through valve body, and valve seat is fixed in valve body, is set with valve plate on the intracorporal valve rod of valve, and sealing ring is pressed on valve plate by pressure ring, and sealing is realized in the sealing surface cooperation of the sealing surface and valve seat of sealing ring；It further includes front support bracket and rear support bracket, and front support bracket is fixedly installed on the front end face of valve body, and the front end of valve rod passes through front support bracket and is rotatablely connected by bearing and front support bracket；Rear support bracket is fixedly installed on the rear end face of valve body, and the rear end of valve rod passes through rear support bracket and is rotatablely connected by bearing and rear support bracket；Pass through packing box seal respectively between the front and rear ends and valve rod of valve body.
Description
Technical field
The utility model relates to butterfly valve field, specially a kind of high temperature three-eccentric-butterfly-valve.
Background technique
Deviate valve seat center and valve body center, and the centrum center line of sealing ring and valve channel axis simultaneously in valve rod axle center
Have certain angle, as three-eccentric-butterfly-valve, be widely used in the metallurgy of medium temperature≤425 DEG C, electric power, petrochemical industry and
On the industrial pipelines such as plumbing and urban construction, makes adjustments flow and carry cutout body use.
Fig. 1 to Fig. 3 is a kind of common three-eccentric-butterfly-valve structure comprising valve body 1, valve rod 2 pass through the axis hole of valve body simultaneously
It is rotatablely connected by the bearing 9 and valve body of valve inner, valve seat 3 is fixed in valve body, and valve plate 4 is fixed on valve rod by pivot pin 23
On, sealing ring 5 is pressed on valve plate by pressure ring 6, driving stem, drives valve plate rotation, sealing ring is made to squeeze valve seat, realize close
Envelope.Such conventional structure, since bearing is built in valve body, when valve works at high temperature, built-in bearing is easy to embrace
Dead valve rod influences the normal use of valve.
Summary of the invention
Valve rod for existing three-eccentric-butterfly-valve is mounted on valve body by the bearing being built in valve body, and valve is worked as
The technical issues of when working at high temperature, built-in bearing is easy to locking valve rod, influences the normal use of valve, this is practical new
Type provides a kind of high temperature three-eccentric-butterfly-valve, can effectively prevent bearing locking valve rod, it is ensured that valve at high temperature also can be normal
It uses.
Its technical solution is such that a kind of high temperature three-eccentric-butterfly-valve comprising valve body and valve rod, the valve rod pass through institute
Valve body is stated, valve seat is fixed in the valve body, is set with valve plate on the intracorporal valve rod of the valve, sealing ring passes through pressure
Ring is pressed on the valve plate, and sealing is realized in the sealing surface cooperation of the sealing surface of the sealing ring and the valve seat；Its feature exists
In: it further includes front support bracket and rear support bracket, and the front support bracket is fixedly installed on the front end face of the valve body, the valve
The front end of bar passes through the front support bracket and is rotatablely connected by bearing and the front support bracket；The rear support bracket is fixedly mounted
In on the rear end face of the valve body, the rear end of the valve rod passes through the rear support bracket and is turned by bearing and the rear support bracket
Dynamic connection；Pass through packing box seal respectively between the front and rear ends of the valve body and the valve rod.
It is further characterized by:
The front support bracket and the rear support bracket are hollow frame structure, the front support bracket and the rear support bracket
Bottom plate it is affixed with the rear end face of the front end face of the valve body and the valve body respectively, the bearing is installed on the front support bracket
On the top plate of the rear support bracket.
It further includes bracket, and front end of the support casing loaded on the valve rod is simultaneously fixedly mounted on the front support bracket.
It further includes dial and pointer, and the dial is fixed on the trailing flank of the rear support bracket, the pointer
It is fixedly mounted on the valve rod being located on rear side of the dial, axial direction of the pointer perpendicular to the valve rod.
Heap is welded with hard alloy layer on the sealing surface of the valve seat.
The sealing ring is metallic packing ring, is sealed between the sealing ring and the valve plate by graphite gasket.
The stuffing-box includes the filler set gradually from inside to outside by valve body, filler spacer, filler and gland, described
Gland is bolted on the valve body and compresses the filler, and the bolt is located at institute by nut check
It states and is set with spring on the bolt between nut and the gland.
The valve rod includes leading portion valve rod and back segment valve rod, and the leading portion valve rod passes through the front end of the valve body and passes through axis
It holds and is rotatablely connected with the front support bracket, the back segment valve rod passes through the rear end of the valve body and by bearing and the rear support
Frame rotation connection, the front and rear ends that the leading portion valve rod and the back segment valve rod pass through pivot pin and the valve plate respectively are affixed.
The beneficial effects of the utility model are:
The three-eccentric-butterfly-valve of the utility model, by setting front support bracket and rear support bracket, make valve rod respectively with front support
Bearing rotation connection on frame and rear support bracket, realizes external bearings in valve body, embraces to can effectively avoid high temperature lower bearing
Dead valve rod, it is ensured that valve normal use in a high temperauture environment.
Detailed description of the invention
Fig. 1 is the main view of conventional three-eccentric-butterfly-valve；
Fig. 2 is the cross-sectional view of the line A-A along Fig. 1；
Fig. 3 is valve rod in Fig. 1, valve plate, the positional diagram between valve body；
Fig. 4 is the main view of the three-eccentric-butterfly-valve of the utility model；
Fig. 5 is the cross-sectional view of the line B-B along Fig. 4；
Fig. 6 is valve rod in Fig. 4, valve plate, the positional diagram between valve body；
Fig. 7 is the partial enlarged view in the region C in Fig. 4；
Fig. 8 is the partial enlarged view in the region D in Fig. 4；
Fig. 9 is the partial enlarged view in the region E in Fig. 4.
Appended drawing reference: 1- valve body；2- valve rod；3- valve seat；4- valve plate；5- sealing ring；6- pressure ring；7- front support bracket；After 8-
Bearing support；9- bearing；10- bracket；11- dial；12- pointer；13- hard alloy layer；14- graphite gasket；15- filler；16-
Filler spacer；17- gland；18- bolt；19- nut；20- spring；21- leading portion valve rod；22- back segment valve rod；23- pivot pin.
Specific embodiment
See Fig. 4 to Fig. 9, a kind of high temperature three-eccentric-butterfly-valve of the utility model comprising valve body 1 and valve rod 2, valve rod 2 are worn
Valve body 1 is crossed, valve seat 3 is fixed in valve body 1, and the valve seat 3 and valve body 1 of the utility model are integrated casting and forming, is located in valve body 1
Valve rod 2 on be set with valve plate 4, sealing ring 5 is pressed on valve plate 4 by pressure ring 6, and the sealing surface of sealing ring 5 is close with valve seat 3
Sealing is realized in cover cooperation；The rear and front end of valve body 1 is additionally provided with front support bracket 7 and rear support bracket 8, and front support bracket 7 is fixedly mounted
In on the front end face of valve body 1, the front end of valve rod 2 passes through front support bracket 7 and is rotatablely connected by bearing 9 and front support bracket 7；After prop up
Bolster 8 is fixedly installed on the rear end face of valve body 1, and the rear end of valve rod 2 passes through rear support bracket 8 and by bearing 9 and rear support bracket 8
Rotation connection；Pass through packing box seal respectively between the front and rear ends and valve rod 2 of valve body 1.
See that Fig. 5, front support bracket 8 and rear support bracket 9 are hollow frame structure, the bottom plate of front support bracket 7 and rear support bracket 8
Affixed by bolt with the rear end face of the front end face of valve body 1 and valve body 1 respectively, bearing 9 is installed on front support bracket 7 and rear support bracket
On 8 top plate.The front support bracket and rear support bracket of hollow design can play further the bearing being installed on its top plate
Heat-blocking action, further ensure that valve using safe.
See Fig. 5, bracket 10 is also equipped with by bolt on front support bracket 7, bracket 10 is set on valve rod 2, and bracket is used
In valve is connect with external component.
See Fig. 9, the high temperature three-eccentric-butterfly-valve of utility model further includes dial 11 and pointer 12, after dial 11 is fixed on
On the trailing flank of bearing support 8, pointer 12 is fixedly mounted on the valve rod 2 of 11 rear side of dial, and pointer 12 is perpendicular to valve rod 2
Axial direction.It is designed in this way, can judge the open/close states of valve in valve use process by pointer and dial, use is more square
Just.
See Fig. 8, heap is welded with hard alloy layer 13 on the sealing surface of valve seat 3, and sealing ring 5 is metallic packing ring, sealing ring 5 with
It is sealed between valve plate 4 by graphite gasket 14.It is designed in this way, metal is realized between metallic packing ring and hard alloy layer to gold
The hard sealing belonged to, and sealing surface wearability is higher, can be improved valve service life in a high temperauture environment, by the way that stone is arranged
Ink pad circle can be realized effective sealing between sealing ring and valve plate.
See that Fig. 7, stuffing-box include the filler 15 set gradually from inside to outside by valve body 1, filler spacer 16, filler 15 and filler
Gland 17, gland 17 are fixed on valve body 1 by bolt 18 and compress filler 15, and bolt 18 is locked by nut 19, and
Spring 20 is set on bolt 18 between nut 19 and gland 17.By the way that spring is arranged, can be realized to filler
Dynamic sealing, thus even if filler grease is evaporated under high temperature environment, also can be realized good sealing.
See that Fig. 5, valve rod 2 include leading portion valve rod 21 and back segment valve rod 22, leading portion valve rod 21 passes through the front end of valve body 1 and passes through
Bearing 9 and front support bracket 7 are rotatablely connected, and back segment valve rod 22 passes through the rear end of valve body 1 and rotated by bearing 9 and rear support bracket 8
Connection, leading portion valve rod 21 and back segment valve rod 22 are affixed by pivot pin 23 and the front and rear ends of valve plate 4 respectively.It is designed in this way, not only
The manufacturing cost of valve rod can be saved, and easily facilitates the installation and removal of valve rod.
In Fig. 3 and Fig. 6, O point represents valve rod axle center, and P point represents valve seat center, and Q point represents valve body center, and M represents sealing
The centrum center line of ring, N represent valve channel axis.
Claims (8)
1. a kind of high temperature three-eccentric-butterfly-valve comprising valve body and valve rod, the valve rod pass through the valve body, and valve seat is fixed on described
In valve body, it is set with valve plate on the intracorporal valve rod of the valve, sealing ring is pressed on the valve plate by pressure ring, institute
Sealing is realized in the sealing surface cooperation for stating the sealing surface and the valve seat of sealing ring；It is characterized by: its further include front support bracket and
Rear support bracket, the front support bracket are fixedly installed on the front end face of the valve body, and the front end of the valve rod passes through the preceding branch
Bolster is simultaneously rotatablely connected by bearing and the front support bracket；The rear support bracket is fixedly installed in the rear end face of the valve body
On, the rear end of the valve rod passes through the rear support bracket and is rotatablely connected by bearing and the rear support bracket；The valve body
Pass through packing box seal respectively between front and rear ends and the valve rod.
2. a kind of high temperature three-eccentric-butterfly-valve according to claim 1, it is characterised in that: the front support bracket and the rear branch
Bolster is hollow frame structure, the bottom plate of the front support bracket and the rear support bracket respectively with the front end face of the valve body and
The rear end face of the valve body is affixed, and the bearing is installed on the top plate of the front support bracket and the rear support bracket.
3. a kind of high temperature three-eccentric-butterfly-valve according to claim 1 or 2, it is characterised in that: it further includes bracket, the branch
Frame is set in the front end of the valve rod and is fixedly mounted on the front support bracket.
4. a kind of high temperature three-eccentric-butterfly-valve according to claim 1, it is characterised in that: it further includes dial and pointer,
The dial is fixed on the trailing flank of the rear support bracket, and the pointer is fixedly mounted on rear side of the dial
On the valve rod, axial direction of the pointer perpendicular to the valve rod.
5. a kind of high temperature three-eccentric-butterfly-valve according to claim 1, it is characterised in that: built-up welding on the sealing surface of the valve seat
There is hard alloy layer.
6. a kind of high temperature three-eccentric-butterfly-valve according to claim 5, it is characterised in that: the sealing ring is metal sealing
Ring is sealed between the sealing ring and the valve plate by graphite gasket.
7. a kind of high temperature three-eccentric-butterfly-valve according to claim 1, it is characterised in that: the stuffing-box includes by valve body
Filler, filler spacer, filler and the gland set gradually outward, the gland are bolted on the valve body
On the filler is compressed, the bolt is and described between the nut and the gland by nut check
Spring is set on bolt.
8. a kind of high temperature three-eccentric-butterfly-valve according to claim 1 or 2, it is characterised in that: the valve rod includes leading portion valve
Bar and back segment valve rod, the leading portion valve rod pass through the front end of the valve body and are rotatablely connected by bearing and the front support bracket,
The back segment valve rod passes through the rear end of the valve body and is rotatablely connected by bearing and the rear support bracket, the leading portion valve rod and
The front and rear ends that the back segment valve rod passes through pivot pin and the valve plate respectively are affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821633463.1U CN208900734U (en) | 2018-10-09 | 2018-10-09 | A kind of high temperature three-eccentric-butterfly-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821633463.1U CN208900734U (en) | 2018-10-09 | 2018-10-09 | A kind of high temperature three-eccentric-butterfly-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208900734U true CN208900734U (en) | 2019-05-24 |
Family
ID=66575004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821633463.1U Active CN208900734U (en) | 2018-10-09 | 2018-10-09 | A kind of high temperature three-eccentric-butterfly-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208900734U (en) |
-
2018
- 2018-10-09 CN CN201821633463.1U patent/CN208900734U/en active Active
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