WO2005012776A1 - Kugelventil - Google Patents
Kugelventil Download PDFInfo
- Publication number
- WO2005012776A1 WO2005012776A1 PCT/DE2004/001724 DE2004001724W WO2005012776A1 WO 2005012776 A1 WO2005012776 A1 WO 2005012776A1 DE 2004001724 W DE2004001724 W DE 2004001724W WO 2005012776 A1 WO2005012776 A1 WO 2005012776A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base body
- spherical cap
- ball valve
- spherical
- valve according
- Prior art date
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
Definitions
- the invention relates to a ball valve with a housing which has two connecting openings which are connected to one another, and a closing body which is arranged in the housing and rotatable about an axis and which separates the connecting openings from one another in one position and which is designed as a spherical cap and with an axially movable Sealing ring cooperating sealing surface, wherein the closing body has a base body and a detachably connected to the base body and firmly supported on this, which forms the sealing surface.
- Ball valves of the specified type are used, among other things, for the conveyance of abrasive media and large nominal sizes. They make it possible to manufacture the spherical cap-shaped sealing surface from a particularly wear-resistant solid material or from wear-resistant armor in applications in which a one-piece closing body cannot be designed with the appropriate wear resistance. Especially with large nominal widths, the production of a one-piece closing body from very high-quality material is complex and expensive and armoring of the sealing surfaces of the closing body is not possible due to the material stresses that occur with some armoring materials, especially if larger layer thicknesses are required.
- DE 198 18 628 C2 discloses a ball valve intended for use in aircraft, in which the sealing surface is formed by a sealing segment which is connected to a base body and which consists of a material with a high surface quality.
- the base body consists of a second material with a low specific weight in order to reduce the weight of the closing device and thus also of the valve.
- the sealing segment in this case has on its outer edge a flat contact surface with which it rests on a flat counter surface of the base body.
- the sealing segment is centered on the base body with the aid of a centering ring arranged radially within its outer edge.
- a central screw is provided for fastening, which is inserted from the outside into a counterbore in the sealing segment and screwed into a threaded hole in the threaded body. It is also known from DE 1 283 050 a stopcock with a sealing body movable on the plug which can be pressed against the associated sealing surface of the housing by the line pressure which can be introduced into the inside of the plug from the inflow side.
- the sealing body here has the shape of a ring which is inserted into an annular recess in the plug.
- a ball valve with a floating plug known from DE 86 17 138 U1
- it consists of a central part and two attached spherical caps which are pressed onto the housing seats as resilient sealing elements via guide pins and springs.
- the spherical caps can be centered in the middle section.
- the invention has for its object to design a ball valve of the type mentioned in such a way that a repair by reworking parts is possible in a simple manner.
- this object is achieved with a ball valve of the type specified in that the closing body has a recess in which the spherical cap body is arranged, the spherical cap body engaging and centering in the recess with an axially extending lateral surface concentric with the central axis of the spherical cap and the distance between the spherical cap body and the center of the sphere can be adjusted by means for axially supporting the spherical cap body on the base body.
- the calotte body can vary to a certain extent in its thickness dimension, since the correct distance between the calotte body and the center of the ball can be set.
- This has the advantage that the dome body, which is made from a very expensive material and, if appropriate, by a complex process, can be reworked repeatedly in the area of its sealing surface, and therefore the dome body does not have to be replaced immediately by a new one when worn.
- the reworking of the spherical cap body can result in a considerable reduction in the cost of operating materials.
- an interchangeable compensating element arranged between these two parts can be provided for axially supporting the spherical cap body, which determines the distance of the spherical cap body from the center of the ball. If the spherical cap body is reworked, the compensating element can be replaced by a correspondingly thicker one to compensate for the resulting reduced caliper body thickness, in order to restore the correct position of the spherical spherical sealing surface.
- the outer surface of the cap body can be provided with an external thread and screwed into a corresponding internal thread provided in the wall of the recess, releasable locking means being provided which secure the cap body on the base body against rotation.
- the calotte body is held on the closing body by its external thread and can be adjusted to the correct distance from the center of the ball by turning the thread.
- a preferred embodiment of the invention provides that the spherical cap has on its rear side facing away from the spherical cap a cylindrical projection which engages in an annular groove forming the recess in the base body.
- the compensating element consists of at least one ring that can be inserted into the annular groove.
- screws are preferably provided which engage in threaded blind holes on the rear of the spherical cap body.
- the base body can have a through bore parallel to the apex tangent of the spherical cap-shaped sealing surface, which connects the connection openings to one another in a position of the closing body.
- the edges of the base body at the ends of the through hole are particularly exposed to wear when conveying abrasive media.
- the invention provides that the edge area at one end of the through hole is formed by an exchange ring made of wear-resistant material.
- there is the possibility of repairs in the event of excessive wear by using the Exchange ring is replaced by a new one.
- the exchange ring is reworked by means of armor.
- the base body can also be protected in the edge area at the end of the through hole by applying armor.
- Figure 1 shows a section of a ball valve according to the invention
- FIG. 2 shows a section of the closing body of the ball valve according to FIG. 1,
- Figure 3 shows an alternative embodiment of the closing body of a ball valve according to the invention.
- Figure 1 shows a section of a housing 10 and a closing body 1 of a ball valve.
- the closing body 1 has the shape of a symmetrical spherical disk and is rotatably mounted in the housing 10 about an axis Z perpendicular to the plane of the drawing, which goes through the center of the sphere.
- the closing body 1 has a base body 11 with a through bore 12 which extends along an axis Y.
- the through hole 12 serves to connect a connection opening 13 arranged in the housing 10 to a second connection opening arranged in mirror image of this, which is not shown in the drawing.
- the closing body 1 is rotated by 90 ° about the axis Z from the position shown in FIG.
- the closing body 1 has a spherical cap body 2 with a spherical cap-shaped sealing surface 7 which interacts with a metallic sealing ring 17 in the housing 10.
- the sealing ring 17 is arranged to be axially movable in the housing 10 and is pressed against the calotte body 2 by springs 18.
- the calotte body 2 is detachable on the base body. attached by 11.
- the calotte body 2 or at least its sealing surface 7 consists of a particularly wear-resistant material.
- FIG. 2 illustrates the fastening of the calotte body 2 to the base body 11.
- the base body 11 has a recess 14 with a central, flat base surface 15 and an annular groove 16 surrounding the base surface 15, which concentric, has cylindrical wall surfaces and a flat floor surface.
- the dome body 2 is designed on its rear side opposite the sealing surface in accordance with the recess 14 and has on its outer edge a cylindrical projection 8 which engages in the annular groove 16 and surrounds a flat circular surface 9 which lies directly opposite the bottom surface 15. Between the bottom of the annular groove 16 and the end face of the extension 8 there is an intermediate space in which there is a ring 4 serving as a compensating element.
- the spherical cap body 2 is supported on the base body 11 via the ring 4.
- the spherical cap body 2 is held in the recess 14 by screws 6, which are inserted from the through hole 12 through a bore opening into the annular groove 16 and a bore penetrating the ring 4 and screwed into a threaded bore in the neck 8.
- the shoulder 8 has two ring recesses adjacent to the ring 4, in which sealing rings 5 made of elastomer or graphite are arranged.
- exchange rings 3 which are detachably connected to the base body 11 and consist of a material that is particularly wear-resistant in comparison to the material of the base body 11, for example a reinforced material.
- the exchange rings 3 have spherical ring surfaces 19 which have the same radius and center point as the sealing surface 7.
- the spherical ring surfaces 19 are located at the narrowest point at a distance from the sealing surface 7 which is smaller than the width of the counter-sealing surface of the sealing ring 17. This ensures that the sealing ring 17 can slide freely from the sealing surface 7 onto the spherical ring surfaces 19 and vice versa , The risk of the sealing ring 17 digging into the softer material of the base body 11 is avoided.
- FIG. 2 The sealing ring 17 is here in one position Shown above the closing body 1, which corresponds to a rotation of the closing body 1 by approximately 8 ° from the position shown in FIG. 1.
- the sealing surface 7 When the ball valve is opened and closed, the sealing surface 7 is exposed to heavy wear and tear if there is abrasive material in the connection opening 13. It is therefore necessary to replace the sealing surface from time to time.
- the sealing surface 7 can be replaced in a simple manner by dismantling and reworking the calotte body 2. Since the axial height of the calotte body changes as a result of the reworking, a ring 4 which is thicker or thinner in accordance with the change in height must be inserted into the recess 14 before the reworked calotte body is mounted. Instead of a thicker ring 4, several rings with a corresponding overall thickness can also be used.
- FIG. 3 shows a closing body 1 ', which differs from the previous exemplary embodiment with regard to the means for adjustable axial support of the spherical cap body 2' on the base body 11 '.
- the cylindrical extension 8 of the spherical cap body 2 ' has an internal thread 20 on its inside and the side wall of the cylindrical annular groove 16 adjacent to the inside of the extension 8 is provided with a corresponding external thread 21. Both threads 20, 21 interlock and thereby firmly support the spherical cap body 2 'on the base body 11'.
- the calotte body 2 'relative to the base body 11' the axial distance between the calotte body 2 'and the center of the ball can be set in a simple manner.
- the spherical cap body 2 ' In order to fix the spherical cap body 2 'in the desired setting position, ie in a defined angular position on the base body 11', the spherical cap body 2 'has a larger number in the extension 8, for example twenty-four threaded bores 22 parallel to the cylindrical axis of the extension 8.
- the threaded bores 22 have the same distance from one another and the same distance from the cylinder axis.
- a stepped bore 24 accessible from the through bore 12, which is at the same distance as the threaded bores 22 from the cylinder axis and can be made to coincide with each of the threaded bores 22 by rotating the spherical cap body 2'.
- the calotte body 2 ' With a locking screw 23 through the stepped bore is inserted and screwed into one of the threaded bores 22, the calotte body 2 'can be fastened in twenty-four different angular positions per thread. If the threads 20, 21 have a pitch of 1.5 mm, for example, the distance of the spherical body 2 'from the center of the ball can be set in steps of 0.0625 mm with the aid of twenty-four threaded bores 22. This more than meets the existing requirements for setting accuracy.
- the dome body 2 ' can also be fixed in a different manner in the set rotational angle position.
- a clamping screw can be arranged in a threaded bore of the base body, which is clamped against the bottom surface of the calotte body in order to ensure that it is frictionally locked against rotation.
- Such a design offers the possibility of stepless adjustment of the spherical cap body, but is considerably more sensitive to temperature changes and vibrations.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112004001939T DE112004001939D2 (de) | 2003-07-31 | 2004-07-30 | Kugelventil |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003135521 DE10335521B4 (de) | 2003-07-31 | 2003-07-31 | Kugelventil |
DE10335521.9 | 2003-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005012776A1 true WO2005012776A1 (de) | 2005-02-10 |
Family
ID=34111875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/001724 WO2005012776A1 (de) | 2003-07-31 | 2004-07-30 | Kugelventil |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN100366963C (de) |
DE (2) | DE10335521B4 (de) |
WO (1) | WO2005012776A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104019246A (zh) * | 2014-06-17 | 2014-09-03 | 上海冠龙阀门机械有限公司 | 一种带有阀座密封装置的球阀 |
US20230131017A1 (en) * | 2021-10-27 | 2023-04-27 | Hamilton Sundstrand Corporation | Ball valve system with ball mounted seal |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1283050B (de) | 1964-09-29 | 1968-11-14 | Ludwig Helberg | Absperrhahn mit einem am Kueken beweglich gelagerten und durch den Leitungsdruck an das Gehaeuse andrueckbaren Abdichtkoerper |
US3456916A (en) * | 1967-01-12 | 1969-07-22 | Fisher Governor Co | Ball valve assembly |
DE8617138U1 (de) | 1986-06-25 | 1987-09-24 | Hartmann, Werner, Dipl.-Ing., 3167 Burgdorf | Kugelhahn mit mehrteiligem Küken |
US5833214A (en) * | 1996-06-11 | 1998-11-10 | Victaulic Company Of America | Plug valve with adjustable disc |
DE19818628C2 (de) | 1998-04-25 | 2001-07-19 | Asg Luftfahrttechnik Und Senso | Ventil, insbesondere Kugelventil |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1142027A (zh) * | 1995-07-28 | 1997-02-05 | 尔哈德·潘农史密斯 | 半球阀 |
AUPP535598A0 (en) * | 1998-08-19 | 1998-09-10 | Philmac Pty Ltd | Ball valve |
-
2003
- 2003-07-31 DE DE2003135521 patent/DE10335521B4/de not_active Expired - Fee Related
-
2004
- 2004-07-30 WO PCT/DE2004/001724 patent/WO2005012776A1/de active Application Filing
- 2004-07-30 DE DE112004001939T patent/DE112004001939D2/de not_active Expired - Fee Related
- 2004-07-30 CN CNB2004800197616A patent/CN100366963C/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1283050B (de) | 1964-09-29 | 1968-11-14 | Ludwig Helberg | Absperrhahn mit einem am Kueken beweglich gelagerten und durch den Leitungsdruck an das Gehaeuse andrueckbaren Abdichtkoerper |
US3456916A (en) * | 1967-01-12 | 1969-07-22 | Fisher Governor Co | Ball valve assembly |
DE8617138U1 (de) | 1986-06-25 | 1987-09-24 | Hartmann, Werner, Dipl.-Ing., 3167 Burgdorf | Kugelhahn mit mehrteiligem Küken |
US5833214A (en) * | 1996-06-11 | 1998-11-10 | Victaulic Company Of America | Plug valve with adjustable disc |
DE19818628C2 (de) | 1998-04-25 | 2001-07-19 | Asg Luftfahrttechnik Und Senso | Ventil, insbesondere Kugelventil |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104019246A (zh) * | 2014-06-17 | 2014-09-03 | 上海冠龙阀门机械有限公司 | 一种带有阀座密封装置的球阀 |
US20230131017A1 (en) * | 2021-10-27 | 2023-04-27 | Hamilton Sundstrand Corporation | Ball valve system with ball mounted seal |
Also Published As
Publication number | Publication date |
---|---|
DE10335521B4 (de) | 2005-07-14 |
CN1820160A (zh) | 2006-08-16 |
CN100366963C (zh) | 2008-02-06 |
DE10335521A1 (de) | 2005-03-10 |
DE112004001939D2 (de) | 2006-06-29 |
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