CN206786027U - A kind of high temperature butterfly valve door - Google Patents
A kind of high temperature butterfly valve door Download PDFInfo
- Publication number
- CN206786027U CN206786027U CN201720595187.3U CN201720595187U CN206786027U CN 206786027 U CN206786027 U CN 206786027U CN 201720595187 U CN201720595187 U CN 201720595187U CN 206786027 U CN206786027 U CN 206786027U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing ring
- valve rod
- high temperature
- metal
- 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.)
- Active
Links
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a kind of high temperature butterfly valve door, including valve body, butterfly plate, valve rod, valve stem sleeve and bottom, valve seat is fixedly installed in valve body, a valve rod connecting hole is axially provided with butterfly plate, axially arranged on valve rod connecting hole internal face to have a keyway, axial restraint is provided with a flat key matched with the keyway on valve rod；Butterfly plate alignment seating position is provided with a sealing ring installation gap, a metal o-ring is provided with the sealing ring installation gap, a spring capping is provided with outside sealing ring installation gap, a spring locating slot is provided with spring capping internal face, retaining spring is provided with spring locating slot, metal o-ring is provided with a sealing ring mounting groove relative to the other end of retaining spring, a c-type sealing ring is provided with sealing ring mounting groove, c-type sealing ring is connected with the internal face of sealing ring installation gap.Above-mentioned technical proposal, it is reasonable in design, simple in construction, be not easy it is swollen it is dead, good airproof performance, security are good, easy to use.
Description
Technical field
It the utility model is related to valve technology field, and in particular to a kind of high temperature butterfly valve door.
Background technology
Butterfly valve is called flap valve, is a kind of regulating valve simple in construction, available for controlling empty gas and water, steam, various corrosion
The flowing of all kinds fluids such as property medium, mud, oil product, liquid metal and radiating medium.The structure of existing butterfly valve, one
As include valve body, valve rod, dish plate, bottom etc., valve plate is rotated to realize body cavity in the presence of valve rod on body cavity
The function being turned on and off.
Existing butterfly valve structure also Shortcomings：Existing butterfly valve is under worst hot case or temperature alternating operating mode, parts
Between valve is swollen does not open extremely caused by expansion, and sealing is poor, easily leaks, and security is poor, service life is short；Valve rod
Trouble is connected with butterfly plate, assembly and disassembly are inconvenient.
The content of the invention
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of reasonable in design, structure
Simply, it is not easy swollen dead, the high temperature butterfly valve door that good airproof performance, security are good, easy to use.
To achieve the above object, the utility model provides following technical scheme：A kind of high temperature butterfly valve door, including valve body,
Butterfly plate, valve rod, valve stem sleeve and bottom, valve seat is fixedly installed in the valve body, a valve rod is axially provided with the butterfly plate
Connecting hole, axially arranged on the valve rod connecting hole internal face to have a keyway, axial restraint is provided with one on the valve rod
The flat key matched with the keyway, the valve rod lower end pass through valve rod connecting hole, and the flat key is connected with keyway；The butterfly plate pair
Quasi- seating position is provided with a sealing ring installation gap, and a metal o-ring, institute are provided with the sealing ring installation gap
State and be provided with a spring capping outside sealing ring installation gap, a spring positioning is provided with the spring capping internal face
Groove, retaining spring is provided with the spring locating slot, described retaining spring one end is connected with spring capping, and retaining spring is another
End is connected with metal o-ring, and metal o-ring is provided with a sealing ring mounting groove, institute relative to the other end of retaining spring
State and a c-type sealing ring is provided with sealing ring mounting groove, the internal face of the c-type sealing ring and sealing ring installation gap connects
Connect.
By using above-mentioned technical proposal, valve rod is connected simply with butterfly plate using flat key, is convenient to mount and dismount, and flat key transmission opens and closes
Torque security is good；After metal o-ring both sides set retaining spring and c-type sealing ring, there is footpath between metal sealing plate and butterfly plate
, can be radially contracted in the presence of retaining spring under worst hot case or temperature alternating operating mode, it is ensured that valve is not to gap
It can not extremely be opened because of valve is swollen caused by expansion between parts, while also ensure that valve seal is good, be not easy to leak, use
Long lifespan；It is reasonable in design, simple in construction, easy to use, practicality is good.
The utility model is further arranged to：Attachment screw is provided with the spring capping, the spring capping passes through
Attachment screw is connected with butterfly plate.By this setting, spring capping is easy to connect, fixed reliable.
The utility model is further arranged to：The c-type sealing ring is metal o-ring, and the opening of c-type sealing ring
It is axially arranged.By this setting, it is reasonable that c-type sealing ring is set, and c-type sealing ring and metal o-ring form inside and outside two seals and prevented
Line, sealing property are more preferable.
The utility model is further arranged to：Conical seal (contact) face is provided with the valve seat, on the conical seal (contact) face
It is welded with layer of metal wearing layer；The metal o-ring alignment non-metallic wear resistant layer is provided with a sealing ring sealing surface, described
Sealing ring sealing surface is tightly connected with non-metallic wear resistant layer.By this setting, structure setting is more reasonable, and sealing property is more preferable, valve
Door service life is longer.
The utility model is further arranged to：The valve stem sleeve lower end is fixedly connected with the upper end of valve body, the valve rod
Upper end through valve stem sleeve set, be provided with packing cavity between the valve rod set upper side and valve rod, be provided with and fill out in the packing cavity
Material, and the gland for closing packing cavity upper surface opening is detachably provided with valve stem sleeve.By this setting, structure is set
Put more rationally, good seal performance.
The utility model is further arranged to：The filler is that resistance to oxidation high temperature consolidates power spy's filler, the packing cavity bottom
Portion is provided with a packing cavity seal groove, and metal C type sealing rings, the gold are axially provided with the packing cavity seal groove
Separate spacers are provided between category C-shaped sealing ring and filler.Pass through this setting, the high temperature of metal C-shaped sealing ring combination resistance to oxidation
Gu power spy's filler, meet to use under the aerobic operating mode of high temperature, eliminate flexible graphite packing and failed caused by oxidation.
The utility model is further arranged to：Valve body lower end is provided with valve rod positioning hole, and the valve rod lower end is located at valve
In bar positioning hole, and valve rod positioning hole lower port is set and valve rod locating slot, and stem bearing is provided with the valve rod locating slot, and
Stem bearing is set with valve-stem integrated, and bottom is fixedly connected with the valve rod positioning hole lower port of valve body.Pass through this setting, valve body knot
It is more reasonable that structure is set, and valve rod positioning is reliable, working stability.
The utility model is further arranged to：The valve rod lower end is arranged with stainless steel sleeve, under the stainless steel sleeve
End is connected with the upper surface of stem bearing.By this setting, the flexibility of stem bottom rotation is improved.
The utility model is further arranged to：The center of the valve rod and the center eccentric setting of the runner of valve body；Institute
State the center of valve rod and the center seal eccentric setting of metal o-ring.It is simple in construction by this setting, it is easy to process.
The utility model is further arranged to：Several connecting bolts, gland are provided with the gland
It is connected by the upper surface of connecting bolt and valve stem sleeve.By this setting, gland is easy to connect, fixed reliable.
The utility model has the advantages that：Compared with prior art, the utility model structure setting is more reasonable, valve rod and butterfly
Plate is simple using flat key connection, is convenient to mount and dismount, and it is good that flat key transmission opens and closes torque security；Metal o-ring both sides set positioning bullet
After spring and c-type sealing ring, there is radial clearance between metal sealing plate and butterfly plate, can under worst hot case or temperature alternating operating mode
With radially contracted in the presence of retaining spring, it is ensured that valve will not extremely be beaten because of valve is swollen caused by expansion between parts
Do not open, while also ensure that valve seal is good, be not easy to leak, service life length；Reasonable in design, simple in construction, user
Just, practicality is good.
With reference to Figure of description and specific embodiment, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the enlarged diagram in I portions in Fig. 1；
Fig. 3 is the utility model embodiment schematic top plan view；
Fig. 4 is the enlarged diagram in II portions in Fig. 1.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of high temperature butterfly valve door disclosed in the utility model, including valve body 1, butterfly plate 2,
Valve rod 3, valve stem sleeve 4 and bottom 5, valve seat 6 is fixedly installed in the valve body 1, a valve rod is axially provided with the butterfly plate 2
Connecting hole 21, axially arranged on the internal face of valve rod connecting hole 21 to have a keyway 211, axial restraint is set on the valve rod 3
A flat key 7 matched with the keyway 211 is equipped with, the lower end of valve rod 3 passes through valve rod connecting hole 21, the flat key 7 and key
Groove 211 connects；The butterfly plate 2 is directed at the position of valve seat 6 and is provided with a sealing ring installation gap 22, the sealing ring installation gap 22
A metal o-ring 8 is inside provided with, a spring capping 9, the spring pressure are provided with outside the sealing ring installation gap 22
A spring locating slot 91 is provided with the internal face of lid 9, retaining spring 10, the positioning are provided with the spring locating slot 91
The one end of spring 10 is connected with spring capping 9, and the other end of retaining spring 10 is connected with metal o-ring 8, metal o-ring 8 relative to
The other end of retaining spring 10 is provided with a sealing ring mounting groove 81, and a c-type is provided with the sealing ring mounting groove 81
Sealing ring 11, the c-type sealing ring 11 are connected with the internal face of sealing ring installation gap 22.
As preferable, the flat key 7 be wholely set with valve rod 3 or flat key 7 with valve rod 3 by being welded and fixed；It is described fixed
Position spring 10 is nickel alloy spring, and metal o-ring 8 is made of existing metal wear resistant material；Valve seat 6 is integrally set with valve body 1
Put or by being welded and fixed；The spring capping 9 is spacing to retaining spring 10, the metal sealing in the presence of retaining spring 10
Circle 8 is close to the internal face of sealing ring installation gap 22, so that c-type sealing ring 11 compresses the inwall of sealing ring installation gap 22
Face.
To make the utility model structure more reasonable, as preferable, the company of being provided with spring capping 9 described in the present embodiment
Screw 12 is connect, the spring capping 9 is connected by attachment screw 12 and butterfly plate 2.
The c-type sealing ring 11 is metal o-ring, and the opening of c-type sealing ring 11 is axially arranged.
Conical seal (contact) face 61 is provided with the valve seat 6, layer of metal wearing layer is welded with the conical seal (contact) face 61
13；The metal o-ring 8 is directed at non-metallic wear resistant layer 13 and is provided with a sealing ring sealing surface 82, the sealing ring sealing surface 82
It is tightly connected with non-metallic wear resistant layer 13.
The lower end of valve stem sleeve 4 is fixedly connected with the upper end of valve body 1, and the upper end of the valve rod 3 is set through valve stem sleeve 4,
Packing cavity 41 is provided between the upper end of valve stem sleeve 4 and valve rod 3, filler 14 is provided with the packing cavity 41, and on valve stem sleeve 4
The detachable gland 15 being provided with for closing the upper surface opening of packing cavity 41.As preferable, the filler 14 is resistance to
The solid power spy's filler of high temperature is aoxidized, the bottom of packing cavity 41 is provided with a packing cavity seal groove 411, packing cavity sealing
Metal C-shaped sealing ring 17 is axially provided with ring recess 411, separation is provided between the metal C-shaped sealing ring 17 and filler 14
Pad 18.
The lower end of valve body 1 is provided with valve rod positioning hole 19, and the lower end of valve rod 3 is located in valve rod positioning hole 19, and valve rod is determined
Position hole 19 lower port is set and valve rod locating slot 20, and stem bearing 23, and stem bearing 23 are provided with the valve rod locating slot 20
It is wholely set with valve rod 3, bottom 5 is fixedly connected with the lower port of valve rod positioning hole 19 of valve body 1.Integral type stem bearing, directly
Built-up welding or surfacing hard alloy on valve rod.
The lower end of valve rod 3 is arranged with stainless steel sleeve 24, the lower end of the stainless steel sleeve 24 and the upper end of stem bearing 23
Face connects.
The center of the valve rod 3 and the center eccentric setting of the runner of valve body 1；The center of the valve rod 3 and metal sealing
The center seal eccentric setting of circle 8.Two eccentric positive round wimble structures, it is easy to process compared to three eccentricity structure.
Several connecting bolts 25 are provided with the gland 15, gland 15 passes through connecting bolt 25 and valve
The upper surface of rod set 4 is connected.
The smithwelding of valve body 1 forms, and No leakage point, meets worst hot case reliability requirement.
During practical application, valve rod is connected simply with butterfly plate using flat key, is convenient to mount and dismount, and flat key transmission opens and closes torque security
It is good；After metal o-ring both sides set retaining spring and c-type sealing ring, there is radial clearance between metal sealing plate and butterfly plate,
, can be radially contracted in the presence of retaining spring under worst hot case or temperature alternating operating mode, it is ensured that valve will not be because of zero
Valve is swollen does not open extremely caused by expansion between part, while also ensures that valve seal is good, is not easy to leak, service life length；
It is reasonable in design, simple in construction, easy to use, practicality is good.
Above-described embodiment is served only for that the utility model is further described, no to specific descriptions of the present utility model
It is understood that as the restriction to scope of protection of the utility model, the technician of this area is according to the content pair of above-mentioned utility model
The utility model is made some nonessential modifications and adaptations and each fallen within the scope of protection of the utility model.
Claims (10)
1. a kind of high temperature butterfly valve door, including valve body (1), butterfly plate (2), valve rod (3), valve stem sleeve (4) and bottom (5), the valve body
(1) valve seat (6) is fixedly installed in, it is characterised in that：A valve rod connecting hole (21) is axially provided with the butterfly plate (2),
Axially arranged on valve rod connecting hole (21) internal face to have a keyway (211), axial restraint is provided with the valve rod (3)
One flat key (7) matched with the keyway (211), valve rod (3) lower end pass through valve rod connecting hole (21), the flat key
(7) it is connected with keyway (211)；Described butterfly plate (2) alignment valve seat (6) position is provided with a sealing ring installation gap (22), should
A metal o-ring (8) is provided with sealing ring installation gap (22), one is provided with outside the sealing ring installation gap (22)
Individual spring capping (9), a spring locating slot (91), the spring locating slot are provided with spring capping (9) internal face
(91) retaining spring (10) is provided with, described retaining spring (10) one end is connected with spring capping (9), and retaining spring (10) is another
One end is connected with metal o-ring (8), and metal o-ring (8) is provided with a sealing relative to the other end of retaining spring (10)
Mounting groove (81) is enclosed, a c-type sealing ring (11), the c-type sealing ring (11) are provided with the sealing ring mounting groove (81)
It is connected with the internal face of sealing ring installation gap (22).
A kind of 2. high temperature butterfly valve door according to claim 1, it is characterised in that：The company of being provided with the spring capping (9)
Screw (12) is connect, the spring capping (9) is connected by attachment screw (12) and butterfly plate (2).
A kind of 3. high temperature butterfly valve door according to claim 2, it is characterised in that：The c-type sealing ring (11) is that metal is close
Seal, and the opening of c-type sealing ring (11) is axially arranged.
A kind of 4. high temperature butterfly valve door according to claim 3, it is characterised in that：It is close that taper is provided with the valve seat (6)
Front cover (61), layer of metal wearing layer (13) is welded with the conical seal (contact) face (61)；Metal o-ring (8) the alignment gold
Category wearing layer (13) is provided with a sealing ring sealing surface (82), and the sealing ring sealing surface (82) and non-metallic wear resistant layer (13) are close
Envelope connection.
A kind of 5. high temperature butterfly valve door according to claim 4, it is characterised in that：Valve stem sleeve (4) lower end and valve body (1)
Upper end be fixedly connected, the upper end of the valve rod (3) is set through valve stem sleeve (4), valve stem sleeve (4) upper end and valve rod (3)
Between be provided with packing cavity (41), is provided with filler (14) in the packing cavity (41), and use is detachably provided with valve stem sleeve (4)
In the gland (15) of closing packing cavity (41) upper surface opening.
A kind of 6. high temperature butterfly valve door according to claim 5, it is characterised in that：The filler (14) is that resistance to oxidation high temperature is consolidated
Power spy's filler, packing cavity (41) bottom are provided with a packing cavity seal groove (411), the packing cavity seal groove
(411) metal C-shaped sealing ring (17) is axially provided with, is provided between the metal C-shaped sealing ring (17) and filler (14)
Separate spacers (18).
A kind of 7. high temperature butterfly valve door according to claim 1, it is characterised in that：Valve body (1) lower end is provided with valve rod positioning
Hole (19), valve rod (3) lower end are located in valve rod positioning hole (19), and valve rod positioning hole (19) lower port sets and determined with valve rod
Position groove (20), the valve rod locating slot (20) is interior to be provided with stem bearing (23), and stem bearing (23) is integrally set with valve rod (3)
Put, bottom (5) is fixedly connected with valve rod positioning hole (19) lower port of valve body (1).
A kind of 8. high temperature butterfly valve door according to claim 7, it is characterised in that：Valve rod (3) lower end is arranged with stainless
Steel bushing (24), the lower end of the stainless steel sleeve (24) are connected with the upper surface of stem bearing (23).
A kind of 9. high temperature butterfly valve door according to claim 1, it is characterised in that：The center of the valve rod (3) and valve body (1)
Runner center eccentric setting；The center of the valve rod (3) and the center seal eccentric setting of metal o-ring (8).
A kind of 10. high temperature butterfly valve door according to claim 5, it is characterised in that：It is provided with the gland (15)
Several connecting bolts (25), gland (15) are connected by the upper surface of connecting bolt (25) and valve stem sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595187.3U CN206786027U (en) | 2017-05-25 | 2017-05-25 | A kind of high temperature butterfly valve door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720595187.3U CN206786027U (en) | 2017-05-25 | 2017-05-25 | A kind of high temperature butterfly valve door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786027U true CN206786027U (en) | 2017-12-22 |
Family
ID=60713297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720595187.3U Active CN206786027U (en) | 2017-05-25 | 2017-05-25 | A kind of high temperature butterfly valve door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206786027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969155A (en) * | 2017-05-25 | 2017-07-21 | 五洲阀门股份有限公司 | A kind of high temperature butterfly valve door |
| CN108843798A (en) * | 2018-06-28 | 2018-11-20 | 浙江石化阀门有限公司 | A kind of superhigh temperature butterfly valve |
-
2017
- 2017-05-25 CN CN201720595187.3U patent/CN206786027U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969155A (en) * | 2017-05-25 | 2017-07-21 | 五洲阀门股份有限公司 | A kind of high temperature butterfly valve door |
| CN108843798A (en) * | 2018-06-28 | 2018-11-20 | 浙江石化阀门有限公司 | A kind of superhigh temperature butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205745417U (en) | A kind of high voltage adjusting ball valve | |
| CN206786027U (en) | A kind of high temperature butterfly valve door | |
| CN201944408U (en) | Special stop valve for chlorine gas | |
| CN106969155A (en) | A kind of high temperature butterfly valve door | |
| CN201401518Y (en) | Wear-resistant sulfur-resistant dual-seal plate valve | |
| CN212718129U (en) | Ultrahigh pressure side-mounted hard sealing ball valve | |
| CN212672486U (en) | Slow-closing check valve | |
| CN211175422U (en) | Bidirectional sealing rotary ball valve | |
| CN101769386A (en) | High-temperature exhaust gas valve with reversible valve disc | |
| CN107289143A (en) | A kind of heavy-caliber high-temperature high pressure all-metal sealing butterfly valve | |
| CN104154265B (en) | A kind of roof-mounted cryogenic ball valve of closed type that mixes | |
| CN207064667U (en) | A kind of heavy-caliber high-temperature high pressure all-metal sealing butterfly valve | |
| CN112377625A (en) | Differential pressure regulating stop valve | |
| CN203009855U (en) | Internal-pressure self-sealing type valve cover stop valve | |
| CN211423434U (en) | Cylindrical full-bore three-eccentric high-pressure wear-resistant ball valve | |
| CN209084018U (en) | A kind of double eccentric butterfly valve stuck for anti-particle | |
| CN217762150U (en) | Replaceable ball valve with sealing pair | |
| CN210484672U (en) | Ball valve | |
| CN201003630Y (en) | Ball valve | |
| CN212690850U (en) | Double eccentric butterfly valve-hard sealing valve seat | |
| CN201225411Y (en) | Flange type ball valve with improved structure | |
| CN210265926U (en) | Double-seal type butterfly valve of intaking | |
| CN220337492U (en) | Long-life coal mine gas drainage butterfly valve capable of preventing valve shaft from being blocked | |
| CN202852025U (en) | Novel ceramic wafer valve | |
| CN216200602U (en) | All-metal sealed five-eccentric butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |