CN1820160A - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN1820160A CN1820160A CN 200480019761 CN200480019761A CN1820160A CN 1820160 A CN1820160 A CN 1820160A CN 200480019761 CN200480019761 CN 200480019761 CN 200480019761 A CN200480019761 A CN 200480019761A CN 1820160 A CN1820160 A CN 1820160A
- Authority
- CN
- China
- Prior art keywords
- matrix
- intercept sphere
- sphere
- hole
- ball valve
- 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.)
- Granted
Links
Classifications
-
- 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
- F16K5/0663—Packings
- F16K5/0684—Packings on the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a ball valve comprising a casing (10) provided with two connection openings which are connected to each other, a mobile closing body (1) arranged in said casing and consisting of a base body (11) and a dome-shaped body (2) which is removably connected to the base body and provided with a tight surface (7). Said invention is characterised in that the dome-shaped body (2) is disposed in the recess (14) of the base body (11), said dome-shaped body (2) is inserted into the recess (14) by the lateral surface thereof which axially and concentrically extends to the dome axis and is centred in said recess, the space of the dome-shaped body (2) is adjustable from the ball centre by means ensuring the axial support of the dome-shaped body (2) on the base body (11).
Description
The present invention relates to a kind of ball valve, this ball valve has that a shell that has two attachment holes that are interconnected, one be placed in can be around the closure body of axis rotation in this shell, this closure body a position described attachment hole separated mutually and it have one be designed to spherical segment and with the sealing surface of an axially displaceable seal washer mating reaction, wherein, closure body has that a matrix removably is connected with this matrix with one and is fixedly fastened on intercept sphere on this matrix, and this intercept sphere constitutes described sealing surface.
In addition, the ball valve of the above-mentioned type is used to transmit under the situation of Korrosionsmedium and big nominal inside diameter.The closure body of integral type can not made when having corresponding scurf resistance, above-mentioned ball valve can be realized making described spherical segment sealing surface by a kind of wear-resisting especially full material (Vollmaterial) or wear-resisting sheath.Under the situation of big nominal inside diameter, be bothersome and expensive and owing to adopt some sheath material to produce the purpose of the sealing surface of material stress thereby the described closure body of impossible realization armouring at first with the closure body of an integral type of high-quality made, especially all the more so when the bigger bed thickness of needs.
Be used in ball valve in the air equipment by the known a kind of regulation of DE 198 18 628 C2, in this ball valve, described sealing surface is made of a sealed arched piece that links to each other with matrix, and this camber member is made with a kind of material of great surface quality.Wherein, matrix is made by the material that another kind has less unit weight, so that reduce the weight of closing mechanism device and and then also reduce the weight of ball valve.Wherein, described sealed arched piece has a flat faying surface in its outer edge, and the sealing camber member abuts on the flat interface of matrix with this faying surface.By means of a centering ring that is disposed radially within its outward edge, this camber member is centered on the matrix.For fixing and adopt one to be encased in the counterbore of sealing camber member from the outside and to be screwed into centre bolt in the tapped hole of threaded body.
In addition, by DE 1 283 050 known a kind of block plugs that have a seal that can move on stopcock, the sealing body can be pressed to by the conducting pressure that imports to this stopcock inside towards the side direction that becomes a mandarin on the sealing surface that the correspondence of described shell sets.At this, seal has a ring part shape in the annular groove that is encased in described stopcock.
In known a kind of ball valve that has a stopper that floats from DE 86 171 38 U1, the stopper that should float is made of an intermediate section and two intercept spheres that are installed on it, these two intercept spheres as elastomer seal by guide finger and spring compression to described valve seat.Replace described guide finger, described intercept sphere also can be felt relieved in described intermediate section.
Technical problem to be solved by this invention is, the ball valve of the described type of a kind of preface is configured to, and can realize finishing in simple mode by the reprocessing to member.
Above-mentioned technical problem is solved in the ball valve of the above-mentioned type like this according to the present invention, promptly, described closure body has a groove of settling described intercept sphere therein, wherein, described intercept sphere be embedded in the described groove with an outer surface that extends vertically with one heart with the medial axis of this intercept sphere and in this groove centering, the distance of the described intercept sphere and the centre of sphere can be adjusted by the measure that vertically this intercept sphere is supported on the described matrix.
In ball valve designed according to this invention, the thickness size of described intercept sphere can change in a certain scope, because this intercept sphere can be adjusted with respect to the actual distance of the centre of sphere.The advantage of doing like this is, a kind of utmost point precious materials of described usefulness and perhaps can repair repeatedly in the zone of its sealing surface according to a kind of intercept sphere of bothersome method manufacturing and therefore this intercept sphere needn't be at once with new replacing after wearing and tearing.Especially in the ball valve of the big nominal inside diameter that bears powerful wearing and tearing load, can reach the purpose that obviously reduces installation cost by the finishing intercept sphere.
According to another suggestion of the present invention, in order vertically described intercept sphere to be supported on the described matrix, adopt a removable compensating element that is placed between these two members, this compensating element is determined the distance of described intercept sphere from the centre of sphere.If intercept sphere is repaired, then to adopt a corresponding thicker compensating element to replace original compensating element, so that make described spherical segment sealing surface still be in the tram in order to compensate the intercept sphere thickness size that reduces thus.
According to another suggestion of the present invention, the outer surface of described intercept sphere is provided with outside thread and can be screwed in the internal thread that is provided with in the sidewall of described groove accordingly, adopt some dismountable locking elements simultaneously, be fixed on no longer rotatably on the described matrix to guarantee described intercept sphere.In this technological scheme, described intercept sphere remains fixed on the closure body and by the rotation in screw thread by its outside thread and adjusts to a correct distance with respect to the centre of sphere.
In of the present invention one preferred expansion design, described intercept sphere has cylinder barrel shaped bead in the circular groove that is embedded in the described matrix on the dorsal surface of described truncated-spherical at it.In this expansion design, described compensating element is made of the ring part that at least one can be encased in the described circular groove, is favourable.For described intercept sphere removably is fixed on the described matrix, and advantageously adopt screw, these screws are embedded in the screw-threaded counterbore on the described intercept sphere dorsal part.
According to another suggestion of the present invention, described matrix has the through hole of the vertex tangent that is parallel to described spherical segment sealing surface, and this through hole is interconnected described attachment hole when described closure body is in a certain position.When transmission abrasion medium, described matrix at first suffers strong wear at the seamed edge at its place, through hole end.In order to reduce wearing and tearing, according to the present invention, the replaceable ring that the seamed edge zone of locating in an end of described through hole is made by high-abrasive material constitutes.Also there is such possibility at this, that is, in for over worn finishing, replaces the replaceable ring of former wearing and tearing with a new replaceable ring.Different with described intercept sphere because less annular cross section of described replaceable ring and corresponding materials with smaller consumption and for the similar techniques scheme too small installing space, thereby can not repair replaceable ring.Certainly imagination is repaired by armouring described replaceable ring.Replacement is provided with described replaceable ring, also can protect described matrix by sheath is installed in the seamed edge zone at place, described through hole end.
Describe the present invention in detail by a kind of mode of execution below.In the accompanying drawing:
Fig. 1 represents the part according to ball valve of the present invention;
Fig. 2 represents the part of the closure body of ball valve shown in Figure 1;
Fig. 3 represents the another kind of expansion design according to the closure body of ball valve of the present invention.
Fig. 1 partly represents the shell 10 and the closure body 1 of a ball valve.Closure body 1 have a symmetry spherical washer shape and rotatably be placed in the shell 10 perpendicular to the axis Z figure paper plane, by the centre of sphere around one.Closure body 1 has one and has along the matrix 11 of the through hole 12 of axis Y extension.This through hole 12 is used for an attachment hole 13 that is arranged in the shell 10 is coupled together with another not shown attachment hole 13 that is provided with symmetrically with this attachment hole mirror image.In order to set up the connection between the described attachment hole, closure body 1 centers on axis Z half-twist from the position shown in Fig. 1.
In order to seal attachment hole 13, closure body 1 has an intercept sphere 2 that has a spherical segment sealing surface 7, seal washer 17 mating reactions of a sealing face 7 and a metal.Sealing packing ring 17 can be placed in movably vertically in the shell 10 and by spring 18 and be pressed on the intercept sphere 2.Intercept sphere 2 removably is fixed on the matrix 11.Intercept sphere 2 or at least its sealing surface 7 make by a kind of wear-resisting especially material.
Local shown in figure 2 figure expresses intercept sphere 2 and is fixed on situation on the matrix 11.For intercept sphere 2 is installed, matrix 11 has the plane shape bottom surface 15 and the groove 14 around the circular groove 16 of this bottom surface 15 that have central authorities, and this circular groove 16 has concentric cylindrical side wall and a plane shape bottom surface.Intercept sphere 2 designs corresponding to described groove 14 ground and has a cylinder barrel shaped bead 8 that is embedded in the described circular groove 16 in its outer edge at itself and the opposed dorsal part of described sealing surface, and this bead 8 is around a plane shape disc 9 of directly facing described bottom surface 15.Between the end face of the bottom surface of described circular groove 16 and described bead 8 gap is arranged, the ring part 4 as compensating element is arranged in this gap.Intercept sphere 2 is supported on the matrix 11 by this ring part 4.With screw 6 intercept sphere 2 is fixed in the described groove 14, these screws pass a hole and a hole of passing described ring part 4 of leading to the described circular groove 16 respectively from described through hole 12 and are screwed in the tapped hole in described bead 8.For with respect to the described intercept sphere 2 of described matrix 11 sealings, have two annular grooves to described bead 8 and described ring part 4 adjacency, the seal ring of being made by man made rubber or graphite 5 is installed in these two annular grooves.
For the wearing and tearing in the seamed edge zone that is reduced in through hole 12 ends places, adopt replaceable ring 3 there, this replaceable ring can be pulled down and be compared wear-resisting especially material with this matrix 11 and made by a kind of from described matrix 11, is for example made by a kind of armoring material.Replaceable ring 3 has the ball face 19 that same radius and center are arranged with described sealing surface 7.Ball face 19 is positioned at the narrowest place littler than the corresponding seal f ace width of seal washer 17 with described sealing surface 7 span ground.Guarantee that thus seal washer 17 can successfully slide on the described ball face 19 and the slip of opposite direction ground from described sealing surface 7.Avoided seal washer 17 to be embedded into danger in the more soft material of described matrix 11.In Fig. 2, represented this situation.Seal washer shown in the figure 17 with respect to closure body 1 be in one from position shown in Figure 1 the about position of 8 ° of rotations.
When the material that is corrosive was in the attachment hole 13, sealing surface 7 was loaded by strong wearing and tearing when opening and closing ball valve.Therefore, sometimes need to upgrade sealing surface.In the project organization of on closure body, having described, can upgrade sealing surface 7 by pulling down intercept sphere 2 and it being reprocessed in simple mode.Because changed the axial arrangement height of intercept sphere 2, therefore, before the good intercept sphere 2 of described reprocessing is installed, a thicker or thinner ring part 4 that is equivalent to described structure height variable quantity is encased in the described groove 14 in order to compensate by reprocessing.
Fig. 3 represent a closure body 1 ', this closure body with the described matrix 11 of intercept sphere 2 ' be supported on vertically adjustably ' on measure aspect different with mode of execution noted earlier.Intercept sphere 2 ' the inner side surface of cylinder barrel shaped bead 8 sidewall adjacent that have internal thread 20 and described cylindrical annular groove 16 within it on the side with this bead 8 be provided with corresponding outside thread 21.These two kinds of screw threads be meshing with each other and thus with intercept sphere 2 ' be fixedly fastened on matrix 11 ' on.In addition, can be in simple mode by with respect to matrix 11 ' rotation intercept sphere 2 ' adjust intercept sphere 2 ' with respect to the axial distance of the centre of sphere.
For with intercept sphere 2 ' be fixed on matrix 11 ' on a desired adjustment position in, that is be fixed on matrix 11 ' on a definite angle position in, intercept sphere 2 ' bead 8 have a large amount of for example 24 tapped holes 22 that are parallel to the cylinder axis of this bead 8.These tapped holes 22 have identical spacing each other and have identical distance with respect to described cylinder axis.One shoulder hole 24 that can from described through hole 12, get at be arranged in matrix 11 ', this shoulder hole 24 have identical with described tapped hole 22 with respect to described cylinder axis distance and can have the intercept sphere 2 of tapped hole 22 ' covered by rotation.Can be by the lock screw 23 of passing described shoulder hole and be screwed in one of them tapped hole 22 with intercept sphere 2 ' the be fixed on position, 24 different angles of each lead of screw thread.If described screw thread 20,21 has for example pitch of a 1.5mm, then by means of 24 tapped holes 22 can with the amount of per step 0.0625mm adjust intercept sphere 2 ' with the distance of the centre of sphere.Satisfy existing requirement thus better to the adjustment precision.
Can certainly be with other different modes with intercept sphere 2 ' be fixed on the good angle position of described adjusted.For example a clamping bolt that is pressed on the intercept sphere bottom surface is placed in the tapped hole of described matrix, fixes with rubbing connection no longer rotatably so that guarantee this intercept sphere.And a kind of like this project organization provides a kind of method of infinitely adjusting intercept sphere, but but obviously more responsive to temperature variation and vibrations.
Claims (9)
1. ball valve, it has a shell that has two attachment holes that are interconnected, one is placed in the closure body that can center on axis rotation in this shell, this closure body on a position, described attachment hole separated mutually and it have one be designed to spherical segment and with the sealing surface of an axially displaceable seal washer mating reaction, wherein, described closure body has that a matrix removably is connected with this matrix with one and is fixedly fastened on intercept sphere on this matrix, this intercept sphere constitutes described sealing surface, it is characterized by: described closure body (1) has one and settles the groove (14) of described intercept sphere (2) therein, wherein, described intercept sphere (2) be embedded in the described groove (14) with an outer surface that extends vertically with one heart with the medial axis of this intercept sphere and in this groove centering, described intercept sphere (2) can be adjusted by the mechanical measure that vertically this intercept sphere (2) is supported on the described matrix (11) with the distance of the centre of sphere.
2. according to the described ball valve of claim 1, it is characterized by: in order vertically described intercept sphere (2) to be supported on the described matrix (11), adopt a removable compensating element that is placed between these two members, this compensating element is determined the distance of the described intercept sphere (2) and the centre of sphere.
3. according to claim 1 or 2 described ball valves, it is characterized by: described intercept sphere (2) has cylinder barrel shaped bead (8) in the circular groove (16) that is embedded in the described matrix on the dorsal surface of described truncated-spherical at it.
4. according to each described ball valve in the claim 1 to 3, it is characterized by: described compensating element is made of the ring part (4) that at least one can be encased in the described circular groove (16).
5. according to each described ball valve in the claim 1 to 4, it is characterized by: this intercept sphere (2) is fixed on the described matrix (11) by the screw (6) that is embedded in the tapped hole on described intercept sphere (2) dorsal part.
6. according to each described ball valve in the claim 1 to 5, it is characterized by: described matrix (11) has the through hole (12) of the vertex tangent that is parallel to described truncated-spherical shape sealing surface (7), this through hole is interconnected described each attachment hole when described closure body is in a certain position, wherein, the seamed edge zone of locating at least one end of this through hole (12) is made of the replaceable ring (3) of a high-abrasive material system.
7. according to each described ball valve in the claim 1 to 5, it is characterized by: in the seamed edge zone that the end of described through hole (12) is located, protect described matrix (11) by a sheath is installed.
8. according to the described ball valve of claim 1, it is characterized by: described intercept sphere (2 ') is provided with the screw thread concentric with a medial axis of described truncated-spherical (20) and can be screwed into one and is located at docking in the screw thread in the described matrix (11 '), some dismountable locking elements are set simultaneously, are fixed on no longer rotatably on the described matrix to guarantee described intercept sphere.
9. according to the described ball valve of claim 8, it is characterized by: described intercept sphere (2 ') has a large amount of tapped holes that parallels to the axis (22) at it on the dorsal surface of described sealing surface (7), the center line of these tapped holes is distributed on common and the concentric circular arc in medial axis described truncated-spherical, and described matrix (11 ') has at least one hole (24), and this hole (24) are aimed at described one of them tapped hole (22) according to the position of described intercept sphere and held a lock screw (23) in the tapped hole that can be screwed into this aligning.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10335521.9 | 2003-07-31 | ||
| DE2003135521 DE10335521B4 (en) | 2003-07-31 | 2003-07-31 | ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1820160A true CN1820160A (en) | 2006-08-16 |
| CN100366963C CN100366963C (en) | 2008-02-06 |
Family
ID=34111875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800197616A Expired - Fee Related CN100366963C (en) | 2003-07-31 | 2004-07-30 | Ball valve |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100366963C (en) |
| DE (2) | DE10335521B4 (en) |
| WO (1) | WO2005012776A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019246B (en) * | 2014-06-17 | 2016-03-23 | 上海冠龙阀门机械有限公司 | A kind of ball valve with valve seat sealing device |
| US20230131017A1 (en) * | 2021-10-27 | 2023-04-27 | Hamilton Sundstrand Corporation | Ball valve system with ball mounted seal |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1283050B (en) * | 1964-09-29 | 1968-11-14 | Ludwig Helberg | Stopcock with a sealing body which is movably mounted on the plug and which can be pressed against the housing by the line pressure |
| US3456916A (en) * | 1967-01-12 | 1969-07-22 | Fisher Governor Co | Ball valve assembly |
| DE8617138U1 (en) * | 1986-06-25 | 1987-09-24 | Hartmann, Werner, Dipl.-Ing., 3167 Burgdorf, De | |
| CN1142027A (en) * | 1995-07-28 | 1997-02-05 | 尔哈德·潘农史密斯 | Hemisphere valve |
| US5833214A (en) * | 1996-06-11 | 1998-11-10 | Victaulic Company Of America | Plug valve with adjustable disc |
| DE19818628C2 (en) * | 1998-04-25 | 2001-07-19 | Asg Luftfahrttechnik Und Senso | Valve, especially ball valve |
| AUPP535598A0 (en) * | 1998-08-19 | 1998-09-10 | Philmac Pty Ltd | Ball valve |
-
2003
- 2003-07-31 DE DE2003135521 patent/DE10335521B4/en not_active Expired - Fee Related
-
2004
- 2004-07-30 WO PCT/DE2004/001724 patent/WO2005012776A1/en active Application Filing
- 2004-07-30 DE DE112004001939T patent/DE112004001939D2/en not_active Expired - Fee Related
- 2004-07-30 CN CNB2004800197616A patent/CN100366963C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE10335521A1 (en) | 2005-03-10 |
| DE112004001939D2 (en) | 2006-06-29 |
| CN100366963C (en) | 2008-02-06 |
| WO2005012776A1 (en) | 2005-02-10 |
| DE10335521B4 (en) | 2005-07-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20110730 |