CN206754443U - A kind of anti-clogging floating valve seat device of high-temperature ball valve - Google Patents
A kind of anti-clogging floating valve seat device of high-temperature ball valve Download PDFInfo
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- CN206754443U CN206754443U CN201720241556.9U CN201720241556U CN206754443U CN 206754443 U CN206754443 U CN 206754443U CN 201720241556 U CN201720241556 U CN 201720241556U CN 206754443 U CN206754443 U CN 206754443U
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- annular
- valve seat
- butterfly spring
- valve
- back side
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Abstract
A kind of anti-clogging floating valve seat device of high-temperature ball valve, including valve seat, valve body are the utility model is related to, elastic floating device is provided between the valve seat back side and valve channel, the elastic floating device is made up of annular butterfly spring and bushing；Mainly circumferencial direction is uniformly arranged several boss on the bushing radial end face close to valve seat side, boss exterior arc surface is tapered slope, annular installation step is manufactured in boss tapered slope, annular butterfly spring endoporus is inlaid on the axial exterior arc surface of annular installation step, the left interior annular plane of annular butterfly spring is fitted on the radial direction table top of annular installation step, and the right exterior annular plane of annular butterfly spring is fitted in the valve seat back side.Make formation open type spring cavity between bushing radial end face and the valve seat back side, medium impurity can not be accumulated in the open type spring cavity of annular butterfly spring, there is the advantages that valve seat floating is flexible, reliable, keying good operation reliability.Suitable for the valve seat of ball valve used in coal gasification apparatus Heisui River, coal slurry mixture condition.
Description
Technical field
The utility model belongs to valve field, specifically on a kind of floating valve seat of metal seal ball valve.This reality
With the new valve seat suitable for ball valve used in coal gasification apparatus Heisui River, coal slurry mixture condition.
Background technology
In coal gasification apparatus Heisui River, coal slurry mixture condition, medium contains a large amount of particles, and erosion and abrasiveness are strong, viscosity
High, easy fouling, it is desirable to which valve has high temperature high voltage resistant, corrosion-resistant, scour resistance.Metal seal ball valve is because having current global mechanism knot
Structure characteristic, it is common to use on the process pipe of coal gasification apparatus.At present, the structure applied to coal gasification apparatus upper ball valve, one
As include valve body, valve seat and spheroid, ball seal face and sealing surface of seat use built-up welding or coated with hard alloy material, improve close
Wear-resisting, the scour resistance of front cover, valve seat floating mount prevent high-temperature expansion from making it swollen with spheroid in valve body inlet and outlet passage
Extremely.The floating valve seat structure of prior art, all use and pacify in the spring cavity between the valve seat back side and valve channel radial direction step
Shock mount or butterfly spring, the high-temperature expansion amount between spheroid and valve seat is absorbed using the elasticity of spring or butterfly spring, prevent that both are swollen dead.
But the sealing principle of ball valve is to promote inlet side valve seat piston like motion using pressure medium, makes sealing surface of seat and spheroid
Sealing surface compact seals, and the sealing force between valve seat and spheroid produces by the difference in areas between the valve seat back side and front, so
The valve seat back side needs to keep larger compression area, and the granule foreign in medium is simultaneously into the valve seat back side and valve body radial direction step
Between, with the deposition of granule foreign between the valve seat back side and valve body radial direction step, valve seat gradually loses float function, makes spheroid
It is swollen dead with valve seat high temperature, ball valve can not be opened and closed operation, functional reliability is poor.
The content of the invention
The purpose of this utility model is the shortcomings that presence for prior art, there is provided a kind of floating dependable performance, work can
By the anti-clogging floating valve seat device of the good high-temperature ball valve of property.
The technical solution of the utility model includes valve seat, valve body, and sealing is set between valve seat periphery and valve body inner bore wall
Ring, sealing surface of seat have the metallic sealing section to be cooperated with spherome surface, bullet are provided between the valve seat back side and valve channel
Property floating installation, the elastic floating device are made up of annular butterfly spring and bushing, and annular butterfly spring is arranged on the valve seat back side and bushing
Between radial end face, excircle of bushing face fixing seal is arranged on valve channel inwall；Mainly in the bushing close to valve seat side
Circumferencial direction is uniformly arranged several boss on radial end face, and boss exterior arc surface is tapered slope, in boss tapered slope
Annular installation step is manufactured, annular butterfly spring endoporus is inlaid on the axial exterior arc surface of annular installation step, a left side for annular butterfly spring
Interior annular plane is fitted on the radial direction table top of annular installation step, and the annular right exterior annular plane of butterfly spring is fitted in the valve seat back of the body
Face.
In above technical scheme, annular compression ring is set between annular butterfly spring and the valve seat back side, put down on the left of annular compression ring
Face and the right exterior annular plane of annular butterfly spring contact, and annular compression ring its right end face is fitted in valve seat periphery and valve body inner bore wall
Between sealing ring on.
The utility model has the advantages that circumferencial direction is uniformly arranged several boss, annular butterfly spring peace on bushing radial end face
Between boss and valve seat, make to form open type spring cavity between bushing radial end face and the valve seat back side, medium can be with slave phase
By rinsing the media particle and impurity taken away in annular butterfly spring, making medium impurity can not in groove between adjacent two boss
Accumulated in the open type spring cavity where annular butterfly spring, valve seat floats flexibly, reliably, opens and closes good operation reliability.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The anti-clogging floating valve seat device of high-temperature ball valve as shown in Figure 1, including valve seat 6, valve body 1, the periphery of valve seat 6 with
Sealing ring 7 is set between the inner hole wall of valve body 1, and the sealing ring 7 uses graphite-seal ring, and the sealing surface of valve seat 6 has and the surface of spheroid 8
The metallic sealing section of mutual cooperation, the sealing surface of valve seat 6 use pile-up welding hard alloy, the surface spraying hard alloy of spheroid 8, improved close
Secondary wear-resisting, scour resistance are sealed, elastic floating device, the elastic floating dress are provided between the back side of valve seat 6 and the passage of valve body 1
Put and be made up of annular butterfly spring 4 and bushing 2, annular butterfly spring 4 is arranged between the back side of valve seat 6 and the radial end face of bushing 2, outside bushing 2
Disc fixing seal is arranged on the vias inner walls of valve body 1, sets O-ring seal therebetween；In the bushing close to the side of valve seat 6
Circumferencial direction is uniformly arranged several boss 9 on 2 radial end faces, and the exterior arc surface of boss 9 is tapered slope, i.e., each boss 9
Exterior arc surface is on a circular conical surface, and annular installation step, the annular endoporus of butterfly spring 4 setting-in are manufactured in the tapered slope of boss 9
On the axial exterior arc surface of annular installation step, the left interior annular plane of annular butterfly spring 4 is fitted in annular installation step
On radial direction table top, the right exterior annular plane of annular butterfly spring 4 is fitted in the back side of valve seat 6, the left-external side planar annular of annular butterfly spring 4
Toroidal cavity is formed between the tapered slope of boss 9, the vias inner walls of valve body 1, allows annular butterfly spring 4 in the channel center of valve body 1
Line direction keeps elastic compression, meanwhile, annular butterfly spring 4 is in the open type formed between the radial end face of bushing 2 and the back side of valve seat 6
In spring cavity, medium flows through from the groove between two neighboring boss 9 washes away the impurity for taking away the annular surface of butterfly spring 4, avoids bullet
Spring chamber produces enough thrust to valve seat 6 by filter medium clogging.The left interior annular plane of the annular butterfly spring 4, it is annular butterfly
Left plane on spring 4 at the endoporus, the right exterior annular plane of annular butterfly spring 4, be in annular butterfly spring 4 at outer ring surface
Right side plan.The axial exterior arc surface and radial direction table top of annular installation step are according to the annular inner hole wall curved surface of butterfly spring 4 and left side ring
Shape flat shape designs, and makes its endoporus and the seamless mating connection of left side plan with annular butterfly spring 4.Bushing 2, valve seat 6 and spheroid 8
The equal spraying abrasion-proof alloy-layer of vias inner walls, there is provided wear-resisting, scour resistance.
Annular compression ring 5, the left side plan of annular compression ring 5 and annular butterfly spring 4 are set between annular butterfly spring 4 and the back side of valve seat 6
Right exterior annular plane contact, its right end face of annular compression ring 5 is fitted in close between the periphery of valve seat 6 and the inner hole wall of valve body 1
In seal ring 7.
Claims (2)
1. a kind of anti-clogging floating valve seat device of high-temperature ball valve, including valve seat (6), valve body (1), valve seat (6) periphery and valve
Sealing ring (7) is set between body (1) inner hole wall, and the sealing ring (7) uses graphite-seal ring, and valve seat (6) sealing surface has and ball
The metallic sealing section that body (8) surface cooperates, valve seat (6) sealing surface use pile-up welding hard alloy, and spheroid (8) surface spraying is hard
Matter alloy, elastic floating device is provided between valve seat (6) back side and valve body (1) passage, the elastic floating device is by annular butterfly
Spring (4) and bushing (2) composition, annular butterfly spring (4) are arranged between valve seat (6) back side and bushing (2) radial end face, bushing (2)
Periphery fixing seal is arranged on the vias inner walls of valve body 1；It is characterized in that in bushing (2) radial end face close to valve seat (6) side
Upper circumferencial direction is uniformly arranged several boss (9), and boss (9) exterior arc surface is tapered slope, in boss (9) tapered slope
Annular installation step is manufactured, annular butterfly spring (4) endoporus is inlaid on the axial exterior arc surface of annular installation step, annular butterfly spring
(4) left interior annular plane is fitted on the radial direction table top of annular installation step, the right exterior annular plane of annular butterfly spring (4)
It is fitted in the back side of valve seat 6.
2. the anti-clogging floating valve seat device of high-temperature ball valve according to claim 1, it is characterized in that annular butterfly spring (4) with
Annular compression ring (5) is set between valve seat (6) back side, and annular compression ring (5) left side plan and the right exterior annular of annular butterfly spring (4) are put down
Face contacts, and annular compression ring (5) its right end face is fitted in the sealing ring (7) between valve seat (6) periphery and valve body (1) inner hole wall
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241556.9U CN206754443U (en) | 2017-03-10 | 2017-03-10 | A kind of anti-clogging floating valve seat device of high-temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241556.9U CN206754443U (en) | 2017-03-10 | 2017-03-10 | A kind of anti-clogging floating valve seat device of high-temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754443U true CN206754443U (en) | 2017-12-15 |
Family
ID=60609951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720241556.9U Active CN206754443U (en) | 2017-03-10 | 2017-03-10 | A kind of anti-clogging floating valve seat device of high-temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539502A (en) * | 2023-07-05 | 2023-08-04 | 北京国仪精测技术有限公司 | Plug connector of sample tube and specific surface area instrument |
-
2017
- 2017-03-10 CN CN201720241556.9U patent/CN206754443U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116539502A (en) * | 2023-07-05 | 2023-08-04 | 北京国仪精测技术有限公司 | Plug connector of sample tube and specific surface area instrument |
| CN116539502B (en) * | 2023-07-05 | 2023-10-03 | 北京国仪精测技术有限公司 | Plug connector of sample tube and specific surface area instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180417 Address after: 325102 Sanjiang Industrial Park, Yongjia County, Wenzhou, Zhejiang Patentee after: Zhejiang Bethel science and Technology Co., Ltd. Address before: Yongjia Oubei County of Wenzhou City, Zhejiang province 325102 Dong'ou Industrial Zone Patentee before: Boteli Valve Group Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325102 Sanjiang Industrial Park Yongjia County Wenzhou city Zhejiang Province Patentee after: Zhejiang bertley Technology Co.,Ltd. Address before: 325102 Sanjiang Industrial Park Yongjia County Wenzhou city Zhejiang Province Patentee before: ZHEJIANG BOTELI VALVE Group |
|
| CP01 | Change in the name or title of a patent holder |