• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A pipe connection comprises a ball joint (1) having shell parts (3, 4) and pipe connection means (20, 21) at the ends of the shell parts (3, 4) which face away from each other and which are to be connected to a respective pipe section. The shell parts (3, 4) surround one another in a contacting manner and define a respective longitudinal centre line; they are rotatable in relation to one another between an aligned position, in which the longitudinal centre lines coincide, and a rotated position, in which the longitudinal centre lines form an angle with one another which differs from zero. The shell parts (3, 4) together enclose an axial passage which extends between the ends of the shell parts (3, 4). A sealing element (6) is provided between the outermost shell part (4) and the innermost shell part (3). A lining extends between the outermost shell part (4) and the corresponding pipe connection means (21). The inner lining surface (14) of the lining (13) has a curvature corresponding to the curvature of the outer surface (5) of the innermost shell part (3); furthermore, said inner lining surface (14) and said outer surface (5) lie entirely free in relation to one another so as to avoid turbulence and to ensure an unobstructed passage.
    公开号:AU2012363484A1
    申请号:U2012363484
    申请日:2012-12-18
    公开日:2014-07-24
    发明作者:Marco Daniel Menheere
    申请人:LEO DYNAMISCHE INVESTERINGEN BV；
    IPC主号:F16L27-04
    专利说明:
    WO 2013/100765 PCT/NL2012/050902 1 Ball joint pipe connection The invention is related to a pipe connection, comprising a ball joint having shell parts, pipe connection means at the ends of the shell parts which face away from each 5 other and which are to be connected to a respective pipe section, which shell parts surround one another in a contacting manner, each define a respective longitudinal centre line and are rotatable in relation to one another between an aligned position, in which the longitudinal centre lines coincide, and a rotated position, in which the longitudinal centre lines form an angle with one another which differs from zero, 10 wherein the shell parts together enclose an axial passage which extends between the ends of the shell parts, a sealing element between the outermost shell part and the innermost shell part, and a lining which extends between the outermost shell part and the corresponding pipe connection means. Such a pipe connection is known. The lining thereof extends between the outer 15 shell part and a welding sleeve in a frustoconical manner. The purpose of the lining is to protect the inner surface of the case which extends between the outer shell part and the welding sleeve against the abrasive action of the materials which flow through the pipeline. In particular dredging spoils which may contain highly abrasive particles have a detrimental effect on the steel material of the ball joint. Thus, the lining should form a 20 barrier in such a way that the steel material is shielded from the abrasive action of the transported materials. Although the prior art pipe connection does provide such protection, nevertheless still problems may occur. As a result of the frustoconical shape of the lining, the outer surface of the innermost shell part may still be subjected to the abrasive action 25 mentioned before, in particular in case the ball joint is in a rotated position. In such cases, a fairly wide gap occurs which gives rise to vortices in the flowing materials. These vortex flows have an enhanced abrasive effect, as a result of which the unprotected portion of the innermost shell part is still attacked. The object of the invention is to provide a pipe connection of the type described 30 before which is better protected against the abrasion caused by the transported materials. Said object is achieved in that the inner lining surface of the lining has a curvature corresponding to the curvature of the outer surface of the innermost shell part and in that said inner lining surface and said outer surface lie entirely free in relation to WO 2013/100765 PCT/NL2012/050902 2 one another. In the pipe connection according to the invention, the lining closely follows the path of the innermost shell part while this is being rotated upon adjusting the ball joint. Thus, only a small gap, preferably with an essentially uniform thickness, is present 5 between the outer surface of the innermost shell part and the lining. Thus, although liquid etc may fill said gap, no vortices will occur as a result of the very limited gap space. Thus, the outer surface of the innermost shell part will no longer be subjected to the abrasive influence of the transported materials. The lining surface may be essentially spherical. 10 In order to further improve the flow characteristics of the pipe connection, a flow guide may be provided in the innermost shell part. Such flow guide protects the inner surface of the innermost shell part. Preferably, the flow guide may have a cylindrically and/or spherically curved inner flow guide surface. Best results are obtained in case the flow guide extends beyond the end of the inner shell part which adjoins the lining . 15 Thus, the flow guide may have a nose end which lies free in relation to the lining surface. The nose end and the lining surface may enclose a gap, the size of which is essentially identical to the gap between the lining surface and the outer surface of the inner shell part. Thereby, the innermost shell part is fully protected against the flowing materials. 20 In order to streamline the flow in a proper manner, the flow guide may comprise a flow guide part which is located close to the pipe connection means of the innermost shell part which is essentially cylindrical. Additionally, the flow guide may comprises a further, adjacent flow guide part which is located close to the outermost shell part and which is designed as widening in the form of a cone or trumpet. The latter embodiment 25 has a free cross sectional flow area which remains essentially unobstructed even in the most extreme rotated positions of the shell parts with respect to each other. This represents a further advantage in comparison to the prior art pipe connection, the latter one exhibiting an increasing reduction of the free cross sectional flow area when rotating the shell parts with respect to each other. 30 Depending on the materials to be transported, the flow guide comprises a specific wear resistant material, such as hardened steel or white-cast iron. Also, the lining comprises such wear resistant material. These materials are selected on the basis of the resistance against the abrasive and possibly chemical properties of the transported WO 2013/100765 PCT/NL2012/050902 3 materials. In a known manner, the outermost shell part may comprise shell part halves which enclose the innermost shell part. Preferably, each outer shell part half contacts the innermost shell part in a direct fashion. In addition to this direct contact, one or both 5 outer shell part half may contact the innermost shell part through the sealing element. In particular, a yoke or yoke ring may be attached to the one of the shell part halves of outermost shell part, a gland ring being provided which constitutes the other shell part half of the outermost shell part and which cooperates with said yoke. Onto the pipe connection, pipe sections may be mounted for instance by means of 10 welding sleeves. Alternatively, mounting flanges may be used. In a preferred embodiment, a case is provided which extends between the outer shell part and the corresponding pipe connection means, said case being releasably connected to the outer shell part, and the lining being enclosed between facing abutments on the outer shell part and the case. The lining may thus be introduced in the 15 case, and subsequently be mounted onto the outer shell part. The invention will now be described further with reference to the figure. The pipe connection shown in figure consists of the ball joint 1 and two pipe sections welded at opposite ends thereof. The ball joint 1 comprises the innermost shell part 3 and the outermost shell part 4 which are slidingly in contact with each other so as 20 to enable rotational movements of the centre lines of the pipe sections. To that end, the shell parts 3, 4 are spherical. In particular, the inner surface 5, 12 of the outermost shell part 4 and the outer surface 7 of the innermost shell part 3 contact each other and are spherical. A sealing element 6 is connected to the outermost shell part 4 and sealingly engages the outer surface 7 of the innermost shell part 3. 25 The outermost shell part 4 consists of the shell part halves 11, 23. Shell part half 23 forms part of the ring-shaped yoke 8. Said yoke 8 consists of the annular body 9 and a number of jaws 10 distributed over the circumference of said body 9. The other shell part half 11 or ring gland is held in place by means of the jaws 10 of the yoke 8. Between these outer shell part halves 11, 23, the inner shell part 3 is held captive, in 30 such a way that it can rotate as described before. A lining 13 is provided, which abuts the stop face 25 of the shell part half 23. Furthermore, a case 24 is connected to the shell part of 23 by means of the bolts 26. The case 24 has a stop face 26 as well, in such a way that the lining 13 is held captive WO 2013/100765 PCT/NL2012/050902 4 between the stop faces 25 and 26.The lining has an inner hollow surface 14, the shape of which corresponds to the spherical shape of the outer surface 7 of the innermost shell part 3. A narrow gap 15 is formed between these surfaces 7, 14, which gap has an essentially uniform thickness, also in the different rotated positions of the shell parts 3, 5 4 with respect to each other. As a result of the immediate proximity of the lining 13 with respect to the outer surface 5 of the innermost shell part 3, hardly any turbulence or vortex can develop in the liquid substance located in the gap 15. As a result, the surface 5 will hardly be attacked, in such a way that the condition thereof will remain suitable for a prolonged period. 10 For further improvement of the durability of the pipe connection, a flow guide 16 is provided on the inside of the innermost shell part 3. This flow guide extends from the welding sleeve 20 of the ring 9 to which the one pipe section is welded to near the inner surface 14 of the lining 13. Near the inner surface 14, the flow guide 16 changes into a nose 19 which lies close up to the surface 14, forming a gap 22. This gap 22 between 15 the nose 19 and the lining 13 has a dimension which is roughly as great as that of the gap 15 between the lining 13 and the innermost shell part 3. The flow guide promotes a regular flow of the medium fed through the pipe connection, in such a way that as little turbulence as possible occurs therein. In this context, the flow guide preferably has an essentially cylindrical part 17 close to the welding sleeve 21, which changes into a part 20 18 which widens in the form of a trumpet and ends in the nose 19. Furthermore, as a result of the widening shape of the innermost surface of the flow guide 16, the free flow area remains largely unobstructed, also in the extreme rotated positions of the innermost shell part 3. 25
    权利要求:
    Claims (18)
    [1] 1. Pipe connection, comprising a ball joint (1) having shell parts (3, 4), pipe connection means (20, 21) at the ends of the shell parts (3, 4) which face away from 5 each other and which are to be connected to a respective pipe section, which shell parts (3, 4) surround one another in a contacting manner, each define a respective longitudinal centre line and are rotatable in relation to one another between an aligned position, in which the longitudinal centre lines coincide, and a rotated position, in which the longitudinal centre lines form an angle with one another which differs from 10 zero, wherein the shell parts (3, 4) together enclose an axial passage which extends between the ends of the shell parts (3, 4), a sealing element (6) between the outermost shell part (4) and the innermost shell part (3), and a lining which extends between the outermost shell part (4) and the corresponding pipe connection means (21), characterized in that the inner lining surface (14) of the lining (13) has a curvature 15 corresponding to the curvature of the outer surface (5) of the innermost shell part (3) and in that said inner lining surface (14) and said outer surface (5) lie entirely free in relation to one another.
    [2] 2. Pipe connection according to claim 1, wherein the outermost shell part (4) 20 comprises shell part halves (11, 23) which enclose the innermost shell part (3) and which preferably each directly contact said innermost shell part.
    [3] 3. Pipe connection according to claim 2, wherein a yoke (8) is attached to the one of the shell part halves (23) of outermost shell part (4), a gland ring (11) being provided 25 which constitutes the other shell part half of the outermost shell part (4) and which cooperates with said yoke.
    [4] 4. Pipe connection according to any of the preceding claims, wherein the lining surface (14) and the outer surface (5) of the inner shell part (3) enclose a gap (15) with 30 an essentially uniform thickness.
    [5] 5. Pipe connection according to one of the preceding claims, wherein the lining surface (14) is essentially spherical. WO 2013/100765 PCT/NL2012/050902 6
    [6] 6. Pipe connection according to one of the preceding claims, wherein a flow guide (16) is provided in the innermost shell part (3). 5
    [7] 7. Pipe connection according to Claim 6, wherein the flow guide (16) has a cylindrically and/or spherically curved inner flow guide surface (17, 18).
    [8] 8. Pipe connection according to Claim 6 or 7, wherein the flow guide (16) extends beyond the end of the inner shell part (3) which adjoins the lining (13). 10
    [9] 9. Pipe connection according to Claim 8, wherein the flow guide has a nose end (19) which lies free in relation to the lining surface (14).
    [10] 10. Pipe connection according to Claim 9, wherein the nose end (19) and the 15 lining surface (14) enclose a gap (22), the size of which is essentially identical to the gap (15) between the lining surface (14) and the outer surface (5) of the inner shell part (3).
    [11] 11. Pipe connection according to one of Claims 6-10, wherein the flow guide (16) 20 comprises a flow guide part (17) which is located close to the pipe connection means (20) of the innermost shell part (3) and which is essentially cylindrical.
    [12] 12. Pipe connection according to one of Claims 6-11, wherein the flow guide (16) comprises a flow guide part (18) which is located close to the outermost shell part (4) 25 and which is designed as widening in the form of a cone or trumpet.
    [13] 13. Pipe connection according to one of Claims 6-12, wherein the flow guide (16) comprises a hardened material. 30
    [14] 14. Pipe connection according to one of the preceding claims, wherein the lining comprises a hardened material (13).
    [15] 15. Pipe connection according to one of the preceding claims, wherein the pipe WO 2013/100765 PCT/NL2012/050902 7 connection means comprise welding sleeves (20, 21).
    [16] 16. Pipe connection according to any of the preceding claims, wherein the pipe connection means comprise connection flanges. 5
    [17] 17. Pipe connection according to any of the preceding claims, wherein the contacting surfaces (7; 5, 12) of the innermost shell part (3) and of the outermost shell part (4) are spherical. 10
    [18] 18. Pipe connection means according to any of the preceding claims, wherein a case (24) is provided which extends between the outer shell part (4) and the corresponding pipe connection means (20), said case being releasably connected to the outer shell part, and the lining (16) being enclosed between facing abutments (25, 26) on the outer shell part (4) and the case (24). 15
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    同族专利:
    公开号 | 公开日
    US20150014988A1|2015-01-15|
    EP2610537B1|2015-09-30|
    WO2013100765A1|2013-07-04|
    EP2610537A1|2013-07-03|
    CN104145151B|2016-12-14|
    SG11201403704VA|2014-07-30|
    AU2012363484B2|2017-05-18|
    IL233424A|2019-11-28|
    US9360141B2|2016-06-07|
    CN104145151A|2014-11-12|
    IL233424D0|2014-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1057939A|1912-01-31|1913-04-01|Andrew H Cooper|Ball-and-socket pipe-coupling.|
    US1957761A|1932-04-22|1934-05-08|Great Lakes Dredge & Dock Comp|Ball joint for conduits|
    US1957805A|1932-04-22|1934-05-08|Great Lakes Dredge & Dock Comp|Ball joint for conduits|
    US1946110A|1933-04-18|1934-02-06|Sidney G Plummer|Universal pipe joint|
    US2456744A|1947-01-11|1948-12-21|Pacific Coast Eng Co|Universal pipe coupling|
    DE976049C|1949-08-26|1963-01-31|Karl Ludwig Lanninger|Wide-angled quick-release pipe coupling|
    US3048977A|1959-10-16|1962-08-14|Jr Joseph F Geary|Swivel nozzle|
    US3056615A|1960-06-01|1962-10-02|Francis N Bard|Joint having temperature responsive sealing means|
    US3275243A|1961-12-28|1966-09-27|Gen Motors Corp|Exhaust nozzle fluid seal|
    US3429588A|1964-11-18|1969-02-25|Arthur J Nelson|Joint construction|
    US3746372A|1971-05-27|1973-07-17|Vetco Offshore Ind Inc|Flexible pipe joints|
    NL7301826A|1973-02-09|1974-08-13|||
    US3995889A|1975-05-22|1976-12-07|Hydro-Dredge Accessory Co.|Dredge floating pontoon pipe-line joint|
    US4443030A|1981-11-04|1984-04-17|Mobile Pulley & Machine Works |Ball joint|
    US8740258B2|2011-08-23|2014-06-03|Fabrication of Rig and Exploration Equipment, Inc.|Two-axis adjustable mud pipe joint|US10119641B1|2016-12-05|2018-11-06|James M. Kelly|Flexible pipe connector|
    NL2021865B1|2018-10-24|2020-05-13|Apt Coupling B V|Ball joint coupling|
    法律状态:
    2017-09-14| FGA| Letters patent sealed or granted (standard patent)|
    2021-07-15| MK14| Patent ceased section 143(a) (annual fees not paid) or expired|
    优先权:
    申请号 | 申请日 | 专利标题
    EP11195891.4||2011-12-28||
    EP11195891.4A|EP2610537B1|2011-12-28|2011-12-28|Ball joint pipe connection|
    PCT/NL2012/050902|WO2013100765A1|2011-12-28|2012-12-18|Ball joint pipe connection|
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