CN104295764B - Forced sealing ball valve - Google Patents
Forced sealing ball valve Download PDFInfo
- Publication number
- CN104295764B CN104295764B CN201410500895.5A CN201410500895A CN104295764B CN 104295764 B CN104295764 B CN 104295764B CN 201410500895 A CN201410500895 A CN 201410500895A CN 104295764 B CN104295764 B CN 104295764B
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- CN
- China
- Prior art keywords
- valve
- spheroid
- ball valve
- ball
- spacer ring
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a forced sealing ball valve which mainly solves the problems that when a valve rod machines a spiral groove, a forced sealing ball valve (track ball valve) in the prior art highly depends on high-grade, high-precision and advanced equipment, and the production cost is high; on the other hand, the opening and closing time is long, and quick opening and closing can not be achieved. The forced sealing ball valve is characterized in that a valve rod (4) and a ball (3) are arranged in an eccentric mode and synchronously rotate in the circumferential direction, the ball (3) comprises a first position (33) where a sealing ring (32) and a valve seat (5) abut against each other when the valve is fully closed and a second position (34) where the sealing ring (32) is far from the valve seat (5) when the valve is fully opened. According to the forced sealing ball valve, the valve rod and the ball synchronously rotating are arranged in the eccentric mode to open and close the valve, the spiral groove does not need to be machined in the valve rod, machining is simple, the ball directly rotates and does not need to deflect by a certain angle in the rotating process, and the forced sealing ball valve can be opened and closed quickly and is long in service life.
Description
Technical field
The invention belongs to ball valve field, more particularly to a kind of forced seal ball valve.
Background technology
Traditional ball valve, either floating type or fixed, spheroid is contacted all the time with valve seat, and switching torque is big, sealing
Face easy damaged, and traditional forced seal ball valve（Orbit ball valve）When opening and closing, spheroid first deflects certain angle, then rotates,
Spheroid is completely disengaged from valve seat in whole switch overall process, therefore valve seat will not be scratched.So with its unique structural advantage,
Reliable sealing property, shows up prominently in recent years in industry-by-industry, and in many occasions troublesome traditional ball has been instead of
Valve, and it still belongs to high-tech, high-performance, high value-added product, but present forced seal ball valve is processed in valve rod
It is too high to the dependency degree of high-grade, precision and advanced process equipment during helicla flute, and general device cannot process at all, production cost is higher；Separately
On the one hand, switch time is longer, it is impossible to accomplish fast opening and closing.
The content of the invention
In order to overcome the shortcomings of background technology, the present invention provides a kind of forced seal ball valve, mainly solves present pressure
, when valve rod processes helicla flute, too high to the dependency degree of high-grade, precision and advanced process equipment, production cost is higher for seal ball-valve；The opposing party
Face, switch time is longer, it is impossible to accomplish the problem of fast opening and closing.
The technical solution adopted in the present invention is：
A kind of forced seal ball valve, including valve body, valve gap, spheroid and valve rod, the valve body and valve gap connect, the valve rod
Bottom is connected with the spheroid, and valve seat corresponding with spheroid is provided with the valve body, and the spheroid is provided with sealing surface, the valve
Bar is with the spheroid eccentric setting and synchronously circumferentially rotates, the of sealing ring and valve seat top pressure when the spheroid includes that valve is fully closed
The sealing ring second position detached with valve seat when one position and valve wide open.
It is threaded connection between the valve seat and valve body.
The spheroid lower end is connected with lower axle, and bearing is provided with the valve body, and the bearing is adapted to composition with the lower axle
It is flexibly connected.
The lower axle lower end is chondritic.
The valve gap is provided with greasing hole and grease pouring valve corresponding with greasing hole, also fills out including the first spacer ring and sealing
Material, first spacer ring and airtight and watertight padding are located at valve rod outside, and the inner of first spacer ring is corresponding with greasing hole, outer end and
The airtight and watertight padding laminating.
The valve gap lower end is threaded with valve stem sleeve, and the valve stem sleeve is sheathed on valve rod outside, the valve stem sleeve it is upper
The second spacer ring is additionally provided between end and airtight and watertight padding, the upper surface of the valve stem sleeve coordinates with the second spacer ring lower surface top pressure.
The spheroid is made into integration by forged steel.
Heap is welded with hard alloy on the sealing surface.
The hard alloy is stellite.
The invention has the beneficial effects as follows：The present invention provides a kind of forced seal ball valve, using eccentric setting synchronous axial system
Valve rod and spheroid carry out opening/shutting valve, and its valve rod need not process helicla flute, and processing is simple, and when rotating, spheroid is directly rotated not
Certain angle need to be deflected, opening and closing is rapid, long service life.
Description of the drawings
Fig. 1 is the sectional view of one embodiment of the invention.
Fig. 2 is the schematic diagram of the spheroid first position of one embodiment of the invention.
Fig. 3 is the schematic diagram of the spheroid second position of one embodiment of the invention.
Fig. 4 is enlarged drawing at one embodiment of the invention Figure 1B.
Fig. 5 is enlarged drawing at Figure 1A of one embodiment of the invention.
Fig. 6 is enlarged drawing at Fig. 1 C of one embodiment of the invention.
In figure, valve body 1, valve gap 2, spheroid 3, valve rod 4, valve seat 5, sealing surface 32, first position 33, the second position 34, axle
Hold 13, lower axle 31, greasing hole 21, grease pouring valve 22, the first spacer ring 23, airtight and watertight padding 25, the second spacer ring 26.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described：As Fig. 1 is combined shown in Fig. 2 to Fig. 6, a kind of forced seal ball
Valve, including valve body 1, valve gap 2, spheroid 3 and valve rod 4, the valve body 1 and valve gap 2 connect, the bottom of the valve rod 4 and the spheroid 3
Valve seat 5 corresponding with spheroid 3 is provided with connection, the valve body 1, the spheroid 3 is provided with sealing surface 32, the valve rod 4 and institute
State the eccentric setting of spheroid 3 and it is synchronous circumferentially rotate, the of sealing ring 32 and the top pressure of valve seat 5 when the spheroid 3 includes that valve is fully closed
The second position 34 detached with valve seat 5 of sealing ring 32 when one position 33 and valve wide open.Valve from closed positions to fully open position,
Spheroid is completely disengaged from from contacting to be sealed to valve seat, i.e., without friction during full switch, be simply turned off moment full contact, thus
Eliminate the scratch factor of sealing surface；Its sealing is, by unique eccentric rotary, to make spheroid rely on one with the sealing of valve seat
Mechanical keys clamp force ensureing, and without the need for the help of pipeline pressure reduction.Simple structure, easy to use, valve rod here can adopt general
Logical valve rod without traditional forced seal ball valve or orbit ball valve used in need Precision Machining spiral fluted valve rod, greatly
Production cost is reduced greatly, and the mating surface between spheroid here and valve seat is preferably hard sealing mating surface.The present invention provides one
Forced seal ball valve is planted, using the valve rod and spheroid of eccentric setting synchronous axial system come opening/shutting valve, its valve rod need not process spiral shell
Spin slot, processing is simple, and when rotating, spheroid directly rotates and is not required to deflect certain angle, and opening and closing is rapid, long service life.
In the present invention, as illustrated, being threaded connection between the valve seat 5 and valve body 1.Simple structure, assembling side
Just, using effect is good.
In the present invention, as illustrated, the lower end of the spheroid 3 is connected with lower axle 31, the valve body 1 is provided with bearing 13,
The bearing 13 is adapted to composition with the lower axle 31 and is flexibly connected.Rotate convenient, using effect more preferably, and reduces abrasion.
In the present invention, as illustrated, the lower end of the lower axle 31 is chondritic.The lower end of lower axle 31 is chondritic, under
The bottom end face and peripheral side of axle is sphere, thus the lower end of lower axle 31 be chondritic similar to universal joint, can be certain
Arbitrarily rotate in angular range, this kind of design is more simple when can ensure that valve is assembled.
In the present invention, as illustrated, the valve gap 2 be provided with greasing hole 21 and with the corresponding greasing in greasing hole 21
Valve 22, also including the first spacer ring 23 and airtight and watertight padding 25, first spacer ring 23 and airtight and watertight padding 25 are located at the outside of valve rod 4,
The inner of first spacer ring 23 is corresponding with greasing hole 21, and outer end is fitted with the airtight and watertight padding 25.Valve gap is provided with greasing hole,
And can be injected soft filler by greasing hole, using convenient.
In the present invention, as illustrated, the lower end of the valve gap 2 is threaded with valve stem sleeve 6, the valve stem sleeve 6 is sheathed on
The outside of valve rod 4, is additionally provided with the second spacer ring 26 between the upper end of the valve stem sleeve 6 and airtight and watertight padding 25, the valve stem sleeve 6 it is upper
End face and the lower surface top pressure of the second spacer ring 26 coordinate.The valve stem sleeve 6 of down-mounting type can make filler part more consolidation, relative to upper
Due to the leak point reduced, so sealing property is more preferably, first and second spacer ring is made of stainless steel the structure of the stuffing box of dress, makes
It is more preferable with effect.
In the present invention, as illustrated, heap is welded with hard alloy on the sealing surface 32.Anti-wear performance is good, and increased makes
With the life-span, tungsten carbide, nickel billon etc. can also be adopted here.
In the present invention, as illustrated, the hard alloy is stellite.Stellite（stellite
alloys）With high dimensional stability, very high wear-resisting, anti-corrosion, antioxidation and anti-H 2 S stress cracking（SSC）Energy
Power, using effect is good.
In the present invention, as illustrated, the spheroid 3 is made into integration by forged steel.Herein can using A105, LF2,
The forged steel such as F304, F316, are simple to manufacture, and using effect is more preferable.
Embodiment is not construed as limitation of the present invention, but any spiritual improvements introduced based on the present invention, all should be
Within protection scope of the present invention.
Claims (4)
1. a kind of forced seal ball valve, including valve body（1）, valve gap（2）, spheroid（3）And valve rod（4）, the valve body（1）And valve gap
（2）Connection, the valve rod（4）Bottom and the spheroid（3）Connection, the valve body（1）Inside it is provided with and spheroid（3）Corresponding valve seat
（5）, the spheroid（3）It is provided with sealing surface（32）, it is characterised in that：The valve rod（4）With the spheroid（3）Eccentric setting and
Synchronously circumferentially rotate, the spheroid（3）Including valve it is fully closed when sealing ring（32）With valve seat（5）The first position of top pressure（33）With
Sealing ring during valve wide open（32）With valve seat（5）The detached second position（34）, the spheroid（3）Lower end is connected with lower axle
（31）, the valve body（1）Inside it is provided with bearing（13）, the bearing（13）With the lower axle（31）Adaptation is constituted and is flexibly connected, institute
State lower axle（31）Lower end is chondritic, the valve seat（5）And valve body（1）Between be threaded connection, the valve gap（2）On set
It is provided with greasing hole（21）And with greasing hole（21）Corresponding grease pouring valve（22）, also including the first spacer ring（23）And airtight and watertight padding
（25）, first spacer ring（23）And airtight and watertight padding（25）It is located at valve rod（4）Outside, first spacer ring（23）The inner with
Greasing hole（21）Correspondence, outer end and the airtight and watertight padding（25）Laminating, the valve gap（2）Lower end is threaded with valve stem sleeve（6）,
The valve stem sleeve（6）It is sheathed on valve rod（4）Outside, the valve stem sleeve（6）Upper end and airtight and watertight padding（25）Between be additionally provided with
Second spacer ring（26）, the valve stem sleeve（6）Upper surface and the second spacer ring（26）Lower surface top pressure coordinates.
2. a kind of forced seal ball valve according to claim 1, it is characterised in that：The spheroid（3）By the system of forged steel one
Into.
3. a kind of forced seal ball valve according to claim 1, it is characterised in that：The sealing surface（32）Upper heap is welded with firmly
Matter alloy.
4. a kind of forced seal ball valve according to claim 3, it is characterised in that：The hard alloy is Si Taili conjunctions
Gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500895.5A CN104295764B (en) | 2014-09-26 | 2014-09-26 | Forced sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410500895.5A CN104295764B (en) | 2014-09-26 | 2014-09-26 | Forced sealing ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295764A CN104295764A (en) | 2015-01-21 |
| CN104295764B true CN104295764B (en) | 2017-05-17 |
Family
ID=52315619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410500895.5A Active CN104295764B (en) | 2014-09-26 | 2014-09-26 | Forced sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295764B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704692A (en) * | 2015-07-23 | 2017-05-24 | 德维阀门铸造（苏州）有限公司 | Novel multi-rotation valve device |
| CN105927750B (en) * | 2016-05-26 | 2018-02-02 | 刘晓琦 | A kind of forced seal ball valve |
| CN109458468B (en) * | 2018-12-25 | 2023-12-12 | 成都中科智成科技有限责任公司 | Friction-free type micro-motor driven track ball valve |
| CN113309871B (en) * | 2021-06-07 | 2022-04-29 | 国家石油天然气管网集团有限公司建设项目管理分公司 | Valve rod guide structure of forced sealing ball valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207204A (en) * | 2010-03-29 | 2011-10-05 | 上海美科阀门有限公司 | High-performance eccentric ball valve |
| CN102734484B (en) * | 2011-03-31 | 2013-07-17 | 上海耐莱斯·詹姆斯伯雷阀门有限公司 | Lifting rod-type ball valve |
| CN202371204U (en) * | 2011-12-19 | 2012-08-08 | 圣博莱阀门有限公司 | Double-cone metal seal valve |
| CN204114214U (en) * | 2014-09-26 | 2015-01-21 | 宣达实业集团有限公司 | A kind of forced seal ball valve |
-
2014
- 2014-09-26 CN CN201410500895.5A patent/CN104295764B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104295764A (en) | 2015-01-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Qiang Inventor after: Shi Qingtai Inventor before: Zhang Wei |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |