• 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:
    The invention relates to a joint for steel pipe, which is oil-tight at high pressure, being of the type including at least one pair of slightly conical sealing surfaces arranged at at least one end of the male member or of the female member, and is insensitive to seizure. This joint is characterized by the fact that the first contact 5 of the sealing zone lying at the end of one member occurs against the corresponding sealing surface of the other member and that at the time of this first contact the taper of the sealing surface which is situated at the end of one of the members of the joint is less than the taper of the corresponding sealing surface which is situated on the other member of the joint, the sealing surfaces at the time of tightening the joint, becoming applied against one another with a contact pressure sufficient to ensure oiltightness. <IMAGE>
    公开号:SU1602403A3
    申请号:SU833555593
    申请日:1983-02-17
    公开日:1990-10-23
    发明作者:Плакэн Бернар
    申请人:Валлурен (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to joints of steel pipes and, in particular, pipes intended for oil production.
    The purpose of the invention is to increase the reliability of the connection by ensuring the tightness of the connection at high pressures without sticking of the connected elements.
    FIG. Figure 1 shows the connection of pipes at the initial moment of connection, a section; in fig. 2 - connection of pipes, in which the tightness zone is made at the end of the male bell-shaped element, incision; FIG. 3 shows the node I. FIG. 2; in fig. 4 - connection of pipes in which the tightness zone is made at the end of the female nipple element, a section; in FIG. 5 a node II in FIG. four; in fig. 6 - connection of pipes with a double cylindrical thread, a section; in fig. 7 shows the node III in FIG. 6; on / fig. 8 is a variant of connecting pipes with a tapered thread, an axial section; in fig. 9, node IV in FIG. eight; FIGS. 10 -: connection of pipes with a tapered thread and two pairs of sealing surfaces, axial section; in fig. 11 — node V in FIG. YU; in fig. 12 — node VI in FIG. ten.
    The connection of steel pipes (Fig. 1) comprises a male-shaped bell-shaped element 1 and a nipple element 2 covered with threaded sections 3, while at the end of the covered bell-shaped element 1 a conical sealing surface 4 is made, and at the end of the female nipple element 2 there is a conical sealing surface 5 The first contact between the male bell 1 and the female nipple 2 elements between the conical seals and the arms 5 and 4 is felt along the same circular line 6. My bell-shaped element. 1 has a restrictive abutment 7, excluding 1 excessive tightening of the joint. The taper of the sealing surface 5 of the engaging nipple element 2 is less than the taper of the sealing surface 4 of the male bell element 1 at an angle corresponding to an inclination of the order of 0.5-2%, preferably 0.75-1% (Fig. 3, 5, 7, 9 and 11) with oi,
    the angle between the generatrix of the conical sealing surface 4 and the span of the threaded socket element 1 and the axis of the pipe joint, the angle of the forming part of the conical sealing surface 5 to cover the nipple element 2.
    The steel pipes are connected in the following manner.
    In the pipe connection (Fig. 2 and 3), the angle (Xi of the sealing surface 4 is less than the angle dig. Of the sealing surface 5, resulting in an angle of 3 between the two sealing surfaces 4 and 5 at the moment of the first contact on the line 6 when the end of the female nipple element 2 comes into contact with the stop 7, this angle difference {) decreases to zero, and the sealing surface 4 of the male socket element 1 is fully pressed against the sealing surface 5 contact nipple element 2 with contact pressure sufficient to provide the necessary tightness and prevent jamming.
    It is possible to connect the pipes (Figs. 4 and -5) 5 in which the angle c.r of P of the forming surface 3 is less than the angle oi of the winding, to it of surface 4, as a result of which between the two sealing surfaces 4 and. 5, an angle 3 is formed, equal to the difference in angles o - -c (), when the connection is tightened and the end of the covering nipple element 2 abuts against the stop 7, the sealing surfaces 4 and 5 are in contact with each other throughout their length and the resulting contact pressure is sufficient to ensure tightness even at high pressures.
    The pipe connection (Fig. 6 and 7) contains two threaded sections 3 and is made of steel pipes with an outer diameter of 180 mm, 9 mm containing .20% chromium, while the inclination of the sealing surface 5 of the surrounding nipple element 2 - angle 2 is equal to 4.25%, the slope of the sealing surface 4 of the male bell-shaped element 1 is the angle (X is 5%, and the spacing between these is inclined-w-w (y1 is 0.75%.
    The pipe connection (Fig. 8 and 9) may contain a threaded section 3 with a tapered thread, with this, the inclination of the sealing surface 4 of the male socket 1 is 24%, the inclination of the sealing surface 5 of the surrounding nipple 2 is 25% 5 and the difference between these slopes is 0/2. - o / is 1%.
    The connection of pipes (Fig. Yun 11) may have two zones of tightness, located at the end of the female nipple element 2 and at the end of the male socket element 1, with. In this respect, the inclinations of the sealing surfaces 4 and the male bell element 1, indicated by angles (Y and o / j, are 24% (or 13.5) and 6% (or 3.5 °), respectively, the inclinations of the sealing surfaces 5 of the female element 2, marked angular / and s / are, respectively, 25% (or and, 5.25% (or 3 °), and the differences between these slopes1
    -
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    us
    - "(and (y:; - c /
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    . I, equal respectively to 1 and 0.75%.
    权利要求:
    Claims (1)
    [1]
    Claims of the Invention A steel pipe joint comprising a male and female elements with threaded sections and at least one restrictive stop and one pair of conical sealing surfaces, one of which is located at the end of the male element or female element, and the sealing surface located at the end the element to be covered is made by a contacting line along one ring with the sealing surface of the other element, characterized in that, in order to increase the reliability the taper of the sealing surface located at the end-. one of the elements that is less than the taper of the sealing of the surface located on the other element by 25 angle corresponding to the pore tilt of 0.5-2%.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU1602403A3|1990-10-23|Joint of steel pipes
    US4732416A|1988-03-22|Pipe connectors
    US4373750A|1983-02-15|Joint for pipe intended for petroleum industry
    RU1802859C|1993-03-15|Pipe joint
    US3920270A|1975-11-18|Pipe coupling
    US4489962A|1984-12-25|Swivel-joint for the base of a riser-pipe
    SU1479011A3|1989-05-07|Flare joint of pipes
    JPH11502592A|1999-03-02|Threaded pipe connection
    US3704034A|1972-11-28|Offset connector
    MXPA05002247A|2005-09-12|Tubular threaded joint which is impervious to the external environment.
    US4691944A|1987-09-08|Tubing connector
    US5176409A|1993-01-05|High pressure pipe coupling
    GB2099529A|1982-12-08|Improvements in and relating to pipe connectors
    US5671955A|1997-09-30|Threadless pipe coupler for sprinkler pipe
    US3186739A|1965-06-01|Flexible coupling
    US4262941A|1981-04-21|Self-aligning tube fitting
    JPH1182853A|1999-03-26|Jacket pipe structure for fluid transport pipe
    EP0087741B1|1987-01-07|Variable angle joint
    IE912775A1|1992-02-12|Joint between pipe sections
    US3408096A|1968-10-29|Pipe coupling
    US4653780A|1987-03-31|Self-aligning tube fitting
    SU1638422A1|1991-03-30|Flange joint of parts
    SU662775A1|1979-05-15|Screw joint
    RU2186284C2|2002-07-27|Pipe threaded sleeve joint
    JP3083418B2|2000-09-04|Pipe fittings for water pipe bridges
    同族专利:
    公开号 | 公开日
    EP0089253A1|1983-09-21|
    IE830333L|1983-08-18|
    DK69383A|1983-08-19|
    EG16454A|1990-10-30|
    CA1214481A|1986-11-25|
    MX156310A|1988-08-09|
    CS258111B2|1988-07-15|
    NO162167C|1989-11-15|
    DK69383D0|1983-02-17|
    GB2116276A|1983-09-21|
    SG88386G|1987-03-27|
    NO162167B|1989-08-07|
    ES278066Y|1985-05-16|
    NZ203320A|1986-02-21|
    FR2521675B1|1985-03-08|
    AT21542T|1986-09-15|
    GB8304374D0|1983-03-23|
    AU1160683A|1983-08-25|
    NO830566L|1983-08-19|
    DE89253T1|1984-04-26|
    ES278066U|1984-11-16|
    BR8300752A|1983-11-16|
    EP0089253B1|1986-08-20|
    IN159012B|1987-03-07|
    GB2116276B|1985-07-17|
    FR2521675A1|1983-08-19|
    DD207748A5|1984-03-14|
    DE3365380D1|1986-09-25|
    AU560228B2|1987-04-02|
    JPS58152994A|1983-09-10|
    CS107983A2|1987-12-17|
    DK154173B|1988-10-17|
    MY8700267A|1987-12-31|
    HK5987A|1987-01-23|
    DZ508A1|2004-09-13|
    DK154173C|1989-05-01|
    IE54076B1|1989-06-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2454525C2|2007-06-25|2012-06-27|Валлурек Маннесманн Ойл Энд Гес Франс|Threaded element of part with opposite thread parts and appropriate pipe threaded joint|
    RU2613212C2|2011-12-19|2017-03-15|Валлурек Ойл Энд Гес Франс|Pipe element for drilling and development of hydrocarbon wells and formed by it threaded joint|US2154037A|1936-08-15|1939-04-11|Nat Supply Co|Method of making joints|
    US2258066A|1940-03-11|1941-10-07|Youngstown Sheet And Tube Co|Pipe joint|
    FR58553E|1947-09-04|1954-01-27|Cie De Pont A Mousson|Screw joint for pipes|
    FR972216A|1948-09-23|1951-01-26|Hughes Tool Co|Sealed junction device for rotary well drilling rod|
    DE2438387C3|1974-08-07|1978-03-09|Mannesmannroehren-Werke Ag, 4000 Duesseldorf|Threaded connection for oilfield pipes|
    FR2367322B1|1974-10-31|1979-03-09|Denoe Ginette|
    JPS5211767A|1975-07-17|1977-01-28|Matsushita Electric Ind Co Ltd|Semiconductor device|
    DE2641767B2|1976-09-14|1979-05-31|Mannesmann Ag, 4000 Duesseldorf|Threaded connection for oil field pipes|US5498035A|1990-01-19|1996-03-12|Blose; Thomas L.|Pipe coupling|
    US5423579A|1983-01-17|1995-06-13|Hydril Company|Tubular coupling with metal to metal seal|
    US4629224A|1983-04-26|1986-12-16|Hydril Company|Tubular connection|
    JPS60116994A|1983-11-29|1985-06-24|Kawasaki Steel Co|Coupling structure of tapered screw for pipe|
    GB8617827D0|1986-07-22|1986-08-28|British Steel Corp|Joints for tubular members|
    US4736967A|1986-12-04|1988-04-12|The Hydril Company|Tubular pin configuration to prevent galling while ensuring sealing|
    US6070912A|1989-08-01|2000-06-06|Reflange, Inc.|Dual seal and connection|
    US5330239A|1990-01-19|1994-07-19|Ipsco Enterprises Inc.|Pipe coupling|
    US5468029A|1990-01-19|1995-11-21|Ipsco Enterprises Inc.|Pipe coupling|
    JP3057857B2|1991-11-08|2000-07-04|日本鋼管株式会社|High torque tool joint|
    IT1272733B|1993-10-19|1997-06-26|Agip Spa|COMPLETE JUNCTION PERFECTED BY TWO PIPES|
    GB2298254B|1995-02-22|1999-09-22|Victaulic Plc|Improvements in and relating to pipe joints|
    US6024646A|1997-10-02|2000-02-15|Ipsco Enterprises Inc.|Swaged pin end of pipe connection|
    EP0949441A4|1997-10-08|2006-09-06|Sumitomo Metal Ind|Screw joint for oil well pipes and method of manufacturing same|
    EP1271037A4|2000-03-30|2009-02-25|Sumitomo Metal Ind|Slim type oil well pipe fitting|
    EP1323971A1|2001-12-12|2003-07-02|Maria Agnese Franchini|Modular tubular element for manufacturing ducts for gases|
    US7690697B2|2007-05-09|2010-04-06|Gandy Technologies Corp.|Thread form for tubular connections|
    FR2961576B1|2010-06-17|2012-08-03|Vallourec Mannesmann Oil & Gas|THREADED JOINT AND METHOD OF MAKING|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8202697A|FR2521675B1|1982-02-18|1982-02-18|LTRP1007A| LT2620B|1982-02-18|1993-09-20|JOINING THE STEEL PIPES|
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