• 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 method of turbulator manufacturing is provided and includes adding an elongated flexible member (20) to a sheath body (11), applying solder paste at an interface between the elongate flexible member and the sheath body, and performing a soldering method with respect to the solder paste for securing the elongate flexible element (20) to the sheath body (11).
    公开号:CH709944A2
    申请号:CH01017/15
    申请日:2015-07-13
    公开日:2016-01-29
    发明作者:Brian Lee Tollison；Srikanth Chandrudu Kottilingam；Yan Cui；Dechao Lin
    申请人:Gen Electric；
    IPC主号:
    专利说明:

    Background of the invention
    The subject matter disclosed herein relates to a jacket assembly, a turbulator manufacturing method, and more particularly turbulator manufacturing for a combustor shell.
    Gas turbines typically include a compressor, a combustor, and a turbine section. Intake air is compressed in the compressor and the compressed air is mixed with fuel to produce a fuel / air mixture that is combusted within the combustion chamber to produce products that are directed into the turbine section. Within the turbine section, the products expand to produce mechanical energy that can be converted into power or electricity.
    The combustion chamber often has a jacket which is formed to define an interior in which the combustion takes place. The jacket is surrounded at the top end of the combustion chamber by sections of an end cover and at a downstream end of the combustion chamber by a sleeve. The portions of the end cap and the sleeve cooperatively form one or more annular spaces around the outer surface of the shell through which air flow is permitted. The air flow can be disturbed by the presence of a turbulator, which is arranged around the outer surface of the shell. Such disturbances increase heat transfer effects, so that heat is removed from the jacket and damage due to high temperatures can be prevented.
    In general, the turbulator is made on the outer surface of the shell by a machining process. The machining process gradually removes material from the outer surface until the turbulator is formed to the desired shape and size.
    Brief description of the invention
    [0005] According to one aspect of the invention, there is provided a method of turbulator manufacturing comprising adding an elongated flexible member to the sheath body in an additive manner, applying a solder paste at an interface between the flexible member and the sheath body, and performing a brazing method with reference to FIG the solder paste to attach the elongated flexible member to the shell body.
    In any embodiment of the method, it may be advantageous that the additive placement of the elongate flexible element under tension comprises: disposing the sheath body in a standing position on a rotatable tensioning device; Welding one end of the elongated flexible member, which is partially contained in a coil and arranged to be discharged from the coil for the elongate flexible member, to the shell body; Turning the clamping device; and moving the coil for the elongated flexible member along a longitudinal axis of the sheath body while maintaining tension in the elongated flexible member.
    [0007] In any embodiment of the method, it may be advantageous that the method further comprises: adding an additional live wire to the sheath body proximate a pre-arranged wire or to a pre-arranged wire; and dispensing solder paste onto an upper corner of an interface between the additional wire and the sheath body / wire.
    In any embodiment of the method, it may be advantageous for the dispensing to be performed during or subsequent to winding.
    [0009] In any embodiment of the method, it may be advantageous to complete the execution of the soldering process in a vacuum.
    According to another aspect of the invention, there is provided a turbulator manufacturing method comprising placing a sheath body in a standing position, spirally winding an elongated flexible member under tension on the sheath body, applying a solder paste to an upper corner of an interface between the elongate flexible member and the jacket and performing a soldering process with respect to the solder paste to attach the elongated flexible member to the shell body.
    In any embodiment of the method, it may be advantageous for the sheath body to have the sheath body disposed on a rotatable chuck and for the helical winding of the elongated flexible member to include rotating the chuck; and moving a coil for the elongate flexible member in which the elongated flexible member is partially contained and from which the elongate flexible member is releasable, along a longitudinal axis of the shell body.
    In any embodiment of the method, it may be advantageous that the method further comprises: winding a second live wire on the sheath body in proximity to a previously wound wire; and applying solder paste to an upper corner of an interface between the second wire and the cladding.
    In any embodiment of the method, it may be advantageous that the method further comprises: winding a third wire under tension on a previously wound wire; and applying a solder paste to an upper corner of an interface between the third wire and the previously wound wire.
    In any embodiment of the invention, it may be advantageous for the helical winding of the elongated flexible member to comprise welding opposite ends of the elongate flexible member to the sheath body.
    In any embodiment of the method, it may be advantageous for the application to occur during or subsequent to the winding.
    In any embodiment of the method, it may be advantageous to complete the performance of the soldering process in a vacuum.
    In any embodiment of the method, it may be advantageous for the elongated flexible element to be hollow.
    According to yet another aspect of the invention, a shroud assembly is provided and includes a sheath body having an outer surface, an elongated flexible member which is additively disposed on the outer surface under tension, and a solder joint formed at an interface between the outer surface of the elongated flexible element is formed.
    In any embodiment of the jacket assembly, it may be advantageous for the solder joint to contain at least nickel and / or aluminum.
    In any embodiment of the jacket assembly, it may be advantageous for the solder joint to have a rounded cross-sectional shape.
    In any embodiment of the jacket assembly, it may be advantageous for the cross-sectional shape of the elongated flexible member to be rounded and / or angular.
    In any embodiment of the jacket assembly, it may be advantageous for the elongated flexible member to be hollow.
    In any embodiment of the sheath arrangement, it may be advantageous that the sheath arrangement further comprises: additional wires which are additively arranged under tension on the outer surface in the vicinity of a previously additively arranged wire or on a previously additively arranged wire; and additional solder joints formed at interfaces between the outer surface and the additional wires or at interfaces between the previously additively arranged wire and the additional wires.
    These and other advantages and features will become more apparent from the following description taken in conjunction with the drawings.
    Brief description of the drawings
    The subject matter considered as being the invention is more particularly indicated and clearly claimed in the claims at the end of the description. The foregoing and other features and advantages of the invention will be apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which:<Tb> FIG. 1 <SEP> is a schematic representation of a gas turbine having a shell assembly in accordance with embodiments;<Tb> FIG. Figure 2 is a cross-sectional view of an elongate flexible member of a jacket assembly in accordance with embodiments;<Tb> FIG. Figure 3 is a cross-sectional view of an elongate flexible member of a shroud assembly in accordance with embodiments;<Tb> FIG. Figure 4 is a cross-sectional view of an elongate flexible member of a shroud assembly in accordance with embodiments;<Tb> FIG. Fig. 5 is a cross-sectional view of an elongated flexible member of a shroud assembly in accordance with embodiments;<Tb> FIG. Fig. 6 is a cross-sectional view of an elongate flexible member of a shroud assembly in accordance with embodiments; and<Tb> FIG. 7 is a diagram of a method of turbulator manufacturing in accordance with embodiments.
    The detailed description explains embodiments of the invention together with advantages and features by way of example with reference to the drawings.
    Detailed description of the invention
    The description provided below relates to a shell assembly and to a method of turbulator manufacture in which a shell assembly by the additive application of an elongate flexible member having various geometries or shapes on a shell body, applying a solder paste on an upper corner of the interface between the elongated flexible element and the shell body and the soldering of the solder paste is formed. The shroud arrangement can therefore be made with about 30% less starting material in much less time than previously possible (from 10 process hours to 1 process hour) and with less waste material.
    Referring to Figs. 1-6, a shroud assembly 10 is provided. The jacket assembly 10 may be provided as a single component or as part of a combustor assembly of a gas turbine 1. In the latter case, the gas turbine 1 includes a compressor 2, a combustion chamber 3, and a turbine section 4. During operation of the gas turbine 1, intake air in the compressor 2 is compressed and the compressed air is mixed with fuel to supply a fuel / air mixture form. The fuel / air mixture is combusted within the combustion chamber 3 to produce combustion products that are directed to the turbine section 4. Within the turbine section 4, the combustion products are expanded to generate mechanical energy that can be converted into power or electricity.
    The shell assembly 10 serves as a shell for the combustion chamber 3 and in this function, the shell assembly 10 includes a shell body 11. The shell body 11 may have a frusto-conical shape with a relatively wide head end portion 110 and a relatively narrow downstream end portion 111. The sheath body 11 has an outer surface 12 and is configured to form an inner space 13 in which the combustion takes place. The sheath body 11 is surrounded by a sleeve 15 at a head end of the combustion chamber 3 through portions of an end cover 14 and a downstream end of the combustion chamber 3. The portions of the end cover 14 and the sleeve 15 together form one or more annular spaces 16 around the outer surface 12, through which an air flow is made possible.
    As illustrated in FIG. 1, the shroud assembly further includes an elongated flexible member 20, such as a metal, plastic or composite wire, which is additively applied to and around the outer surface 12 with at least temporarily sustained stress, as well as a Solder joint 30 (see Figs. 2 to 6). When the solder joint 30 is made, the solder joint 30 and the elongated flexible member 20 together form a turbulator 35. The solder joint 30 is formed on an interface 40 (see FIGS. 2-6) disposed between the outer surfaces 12 and the elongated flexible member 20 is defined. The elongate flexible member 20 therefore acts at least as a portion of the turbulator 35 for the shroud assembly 10 and interferes with the flow of air in the one or more annuli 16.
    The elongate flexible member 20 may be disposed about the sheath body 11 in a spiral pattern (eg, 0.25 bi-0.5 inch pitch) or in a pattern other than a single continuous element or as a plurality of discrete elements be connected to the outer surface 12 through the solder joint 30. The elongate flexible member 20 may additionally be connected or welded to the sheath body 11 at predetermined locations, such as at opposite first and second ends 21 and 22 of the elongated flexible member 20. That is, the first end 21 of the elongated flexible member 20 may be welded or stapled to the sheath body 11 at the head end portion 110, and the second end 22 of the elongated flexible member 20 may be welded or stapled to the sheath body 11 at the downstream end portion III.
    In accordance with embodiments, the solder joint 30 may include various materials, including, but not limited to, nickel and aluminum, and / or any other materials that are solderable to the shell body 11.
    As shown in Figs. 2 to 6, the solder joint 30 may have a rounded cross-sectional shape 31 with concave transitions to promote fatigue resistance. In particular, as shown in FIG. 3, the solder joint 30 may have a throat shape with 3 asymptotic regions 301, 302, 303. The region 301 faces away from the elongate flexible member 20 and lies along the outer surface 12. The region 302 faces away from the outer surface 12 and extends along the elongated flexible member 20. The region 303 faces inwardly toward the interface 40 and runs along the outer surface 12. The region 303 may be connected to a complementary region 303 extending from the opposite side of the solder joint 30 through holes 41 formed through the interface 40 as a result of surface inaccuracies and process tolerances.
    In accordance with various embodiments, the elongate flexible member may have a polygonal cross-sectional shape (see the rectangular wire 20 of FIG. 2) or a round cross-sectional shape (see the round wire 20 of FIGS. 3 to 6). In any event, a determination of how to form the elongated flexible member 20 is made in accordance with various factors, including but not limited to heat transfer requirements.
    As illustrated in FIGS. 4 to 6, the jacket assembly 10 may include additional wires 23 and additional solder joints 31. The additional wires 23 may be additively applied with at least temporarily sustained tension on and around the outer surface 12 near a previously additively applied wire 20 (see FIG. 4) or may be additive with at least temporarily maintained tension as an additional second level wire 230 on and around one or more previously additively applied wires 20, 23 (see FIGS. 5 and 6) are applied. The additional solder joints 31 are at interfaces between the outer surface 12 and the additional wires 23 (see FIG. 4) or at interfaces between the previously additively applied wire and the previously additively applied wires 20, 23 and the additional wire (s) 230 second levels (see FIGS. 5 and 6) may be formed.
    A turbulator manufacturing method will now be explained with reference to FIG. The method includes disposing the sheath body 11 in a substantially vertical standing position on a rotatable chuck 50 and spirally winding the elongate flexible member 20 under at least temporarily maintained tension on and around the sheath body 11. The rotatable chuck 50 may include a holder 51 in which the weight of the shell body 11 is directly supported. The rotatable tensioning device 50 may also be paired with an additional bracket 52 at a distal end of the sheath body 11.
    The helical winding of the elongated flexible member 20 can be achieved by first welding the first and / or second end 21 or 22 (see FIG. 1) of the elongate flexible member 20 to the sheath body 11 (eg, FIG. stapled). Then, with the at least one anchorage welded to the sheath body 11, at least one end of the elongated flexible member 20 becomes helical winding by effecting rotation of the chuck 50 using a servomotor 53 and simultaneously moving the elongated flexible member coil 60 continued along a longitudinal axis A of the jacket body 11. The elongate flexible member coil 60 includes an axis 61 on which a wheel 62 is rotatably mounted, the elongated flexible member 20 being partially wound on the wheel 62. Therefore, the rotation of the tensioning device 50 causes rotation of the sheath body 11, thereby drawing a length of the elongated flexible member from the wheel 62 via a guide 63 in a dispensing action. In accordance with alternative embodiments, the sheath body 11 may be arranged in a different orientation, and in such cases the movement of the elongated flexible element coil 60 will still be aligned along the longitudinal axis A.
    As illustrated in FIG. 7, the method may further include dispensing a solder paste 70 via a nozzle 71 at an upper corner of the interface 40 of the elongate flexible member and performing a soldering process with respect to the solder paste 70, e.g. In a vacuum oven 80 to secure the elongated flexible member 20 to the shell body 11 and to form the turbulator 35. During this soldering process, the solder paste 70 will seep through the holes 41 formed by the interface 40 as a result of surface irregularities and process tolerances to form the solder joint 30 on either side of the elongated flexible member 20 or around an outer surface of the elongated flexible member 20 flow.
    For the additional wires 23, 230 and the additional solder joints 31 of Figs. 4 to 6, the method illustrated in Fig. 7 may be repeated as necessary to form the desired shape of the turbulator 35.
    Returning to FIG. 2, further or alternative embodiments will now be explained. For example, the solder joint 30 may be configured to include an outer portion 304 and an inner portion 305 that extends along the extended contact surface between the elongate flexible member 20 and the outer surface 12 when the elongate flexible member 20 is configured to to form an extended contact surface with the outer surface 12, as in the case when the elongated flexible member 20 has the square cross-sectional shape shown in Fig. 2. As another example, the elongated flexible member 20 may include an inner end surface 310 that is formed to define an interior space 311 such that the elongated flexible member 20 may be substantially hollow or filled with a filler material of a suitable type or composition can.
    It should be understood that although the further or alternative embodiments described above have been explained with reference to FIG. 2, the further or alternative embodiments are applicable to all of the other embodiments described herein. Therefore, the elongated flexible member 20 could have an inner end surface 310 and be substantially hollow or filled with a filling material in the case where the elongate flexible member 20 has a round cross-sectional shape as shown in FIGS. 3 to 6. Moreover, the cross-sectional shape of the inner space 311 does not need to image the cross-sectional shape of the elongate flexible member 20 as a whole, so that the inner space 311 may be rounded when the elongated flexible member 20 has an angular cross-sectional shape shown in FIG. 2, and vice versa.
    While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention may be modified to encompass any number of variations, modifications, substitutions or equivalent arrangements not heretofore described, but within the spirit and scope of the invention. Additionally, it should be understood that aspects of the invention may only include some of the described embodiments while various embodiments of the invention have been described. Accordingly, the invention should not be construed as limited by the above description, but is limited only by the scope of the appended claims.
    A method of turbulator manufacture is provided and includes adding an elongate flexible member 20 under tension to a sheath body 11, releasing a solder paste 70 at an interface 40 between the elongate flexible member and the sheath body, and performing a brazing method with reference to FIG the solder paste 70 to secure the elongate flexible member 20 to the shell body 11.
    LIST OF REFERENCE NUMBERS
    [0044]<Tb> gas turbine <September> 1<Tb> Compressor <September> 2<Tb> combustion <September> 3<Tb> turbine section <September> 4<Tb> shell assembly <September> 10<Tb> Sheath body <September> 11<Tb> outer surface <September> 12<Tb> interior <September> 13<Tb> end cover <September> 14<Tb> sleeve <September> 15<tb> Flexible element <SEP> 20<tb> First End <SEP> 21<tb> Second End <SEP> 22<tb> Additional wires <SEP> 23<tb> Additional second level wire <SEP> 230<Tb> soldered <September> 30<tb> Additional solder joints <SEP> 31<tb> Asymptotic Area <SEP> 301, 302, 303<tb> Outer element <SEP> 304<tb> Inner Section <SEP> 305<Tb> inner face <September> 310<Tb> interior <September> 311<Tb> turbulator <September> 35<Tb> Interface <September> 40<Tb> holes <September> 41<Tb> fixture <September> 50<Tb> support <September> 51<tb> Extra bracket <SEP> 52<Tb> servomotor <September> 53<Tb> coil <September> 60<Tb> axis <September> 61<Tb> wheel <September> 62<Tb> Guide <September> 63<Tb> solder paste <September> 70<Tb> nozzle <September> 71<Tb> head end <September> 110<tb> Downstream End Section <SEP> 111
    权利要求:
    Claims (10)
    [1]
    A turbulator manufacturing method comprising: adding an elongated flexible member to a sheath body while under tension;Applying a solder paste at the interface between the elongated flexible member and the shell body; andPerforming a soldering process with respect to the solder paste to attach the elongated flexible member to the shell body.
    [2]
    2. The method of claim 1, wherein the additive placing of the elongate flexible element under tension comprises:Placing the sheath body in a standing position on a rotatable tensioning device; Welding one end of the elongate flexible member, partially contained in a coil for the elongate flexible member and mounted to be dispensed from the spool, to the shell body; Turning the clamping device; andMoving the coil for the elongate flexible member along a longitudinal axis of the sheath body while maintaining tension in the elongated flexible member.
    [3]
    3. The method of claim 1 or 2, further comprising: adding an additional wire under tension to the sheath body in proximity to a pre-arranged wire or wire;Applying solder paste to an upper corner of an interface between the additional wire and the sheath body / pre-arranged wire.
    [4]
    4. A turbulator manufacturing method comprising: disposing a sheath body in a standing position;spirally winding an elongated flexible member under tension on the shell body; Applying a solder paste to an upper corner of the interface between the elongated flexible member and the shell body;Performing a soldering process with respect to the solder paste to attach the elongated flexible member to the shell body.
    [5]
    5. The method of claim 4, wherein arranging the sheath body includes disposing the sheath body on a rotatable chuck, and spirally winding the elongated flexible member comprises: rotating the chuck; andMoving the coil for the elongated flexible member in which the elongated flexible member is partially contained and from which the elongated flexible member is releasable, along a longitudinal axis of the shell body.
    [6]
    6. The method of claim 4 or 5, further comprising: winding a second wire under tension on the sheath body in the vicinity of a previously wound wire and applying solder paste to an upper corner of an interface between the second wire and the sheath; and / or winding a third wire under tension on a previously wound wire and applying solder paste to an upper corner of an interface between the third wire and a previously wound wire.
    [7]
    7. The method of claim 4, wherein helically winding the elongate flexible member comprises welding opposite ends of the elongated flexible member to the sheath body.
    [8]
    8. Sheath arrangement comprising:an outer surface having a jacket body; an elongated flexible element which is arranged under tension additively on the outer surface; and a solder joint formed at an interface between the outer surface and the elongated flexible member.
    [9]
    9. sheath assembly according to claim 8, wherein the sheath body is frustoconical, welded against the sheath body at predetermined locations and arranged spirally around the sheath body.
    [10]
    10. sheath assembly according to claim 8 or 9, further comprising:additional wires that are additively arranged under tension on the outer surface in the vicinity of a previously additively arranged wire or on a previously additively arranged wire;additional solder joints, which are formed at interfaces between the outer surface and the additional wires or at interfaces between the previously additively arranged wire and the additional wires.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE102015111039A1|2016-01-28|
    US20160025341A1|2016-01-28|
    US9989255B2|2018-06-05|
    JP6705624B2|2020-06-03|
    JP2016031225A|2016-03-07|
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    法律状态:
    2017-03-15| NV| New agent|Representative=s name: GENERAL ELECTRIC TECHNOLOGY GMBH GLOBAL PATENT, CH |
    2019-03-29| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    US14/341,152|US9989255B2|2014-07-25|2014-07-25|Liner assembly and method of turbulator fabrication|
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