Support device and method for manufacturing support device

Abstract

This support device is provided with: at least one first stay bar that has a first base end connected to a first wall and a first tip, and that extends from the first base end to the first tip toward a second wall; at least one second stay bar having a second base end connected to the second wall and a second tip end positioned closer to the first wall than the first tip end, the second stay bar extending from the second base end to the second tip end through the first tip end toward the first wall; and a connecting part which has at least one third stay bar extending in the extension direction within a position range between the first front end portion and the second front end portion in the extension direction of the first stay bar and the second stay bar, and which connects the first front end portion of the first stay bar and the second front end portion of the second stay bar.

Description

Technical Field

[0001] The invention relates to a supporting device and a method for manufacturing the supporting device.

[0002] This application claims priority based on Japanese Patent Application No. 2022-178109 filed in Japan on November 7, 2022, and the contents are incorporated herein by reference. Background Art

[0003] There is known a support device that supports a first member and a second member while allowing relative movement between the first member and the second member.

[0004] For example, in the device described in Patent Document 1, the float is supported while the relative movement between the horizontal partition wall and the float is allowed.

[0005] Previous technical literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Publication No. 2008-151695 Summary of the invention

[0008] Technical issues to be solved by the invention

[0009] However, for example, in the combustor of an industrial gas turbine, for example, piping for circulating cooling steam, piping arranged along the side of the combustion tube, etc. are preferably supported by the combustion tube. When these piping are mounted on the combustion tube via a supporting device, the supporting device is required to be a structure capable of absorbing the thermal expansion of these piping or the combustion tube.

[0010] However, when the float support structure described in the above patent document is used as the support device in this case, it is difficult to construct the support device in a manner that can absorb the above thermal expansion while ensuring the required support strength within the limited space on the side of the combustion tube.

[0011] In view of the above circumstances, at least one embodiment of the present invention aims to provide a support device that supports a first member and a second member while allowing relative movement between the first member and the second member.

[0012] Means for solving technical problems

[0013] (1) A support device according to at least one embodiment of the present invention,

[0014] The support device is used for supporting a second component having a second wall opposed to the first wall relative to a first component having a first wall, and the support device comprises:

[0015] at least one first strut having a first base end connected to the first wall and a first front end opposite to the first base end, and extending from the first base end to the first front end toward the second wall;

[0016] at least one second brace having a second base end connected to the second wall and a second front end located at an end on the opposite side of the second base end and closer to the first wall than the first front end, and extending from the second base end to the second front end through the first front end toward the first wall; and

[0017] The connecting portion includes at least one third strut extending along the extending direction within a position range between the first front end portion and the second front end portion in the extending direction of the first strut and the second strut, and connects the first front end portion of the first strut and the second front end portion of the second strut.

[0018] (2) A method for manufacturing a support device according to at least one embodiment of the present invention,

[0019] The support device is used to support a second component having a second wall opposite to the first component having a first wall, and the manufacturing method of the support device is to form the following components into one piece by stacking molding:

[0020] at least one first strut having a first base end connected to the first wall and a first front end opposite to the first base end, and extending from the first base end to the first front end toward the second wall;

[0021] at least one second brace having a second base end connected to the second wall and a second front end located at an end on the opposite side of the second base end and closer to the first wall than the first front end, and extending from the second base end to the second front end through the first front end toward the first wall; and

[0022] The connecting portion includes at least one third strut extending along the extending direction within a position range between the first front end portion and the second front end portion in the extending direction of the first strut and the second strut, and connects the first front end portion of the first strut and the second front end portion of the second strut.

[0023] Effects of the Invention

[0024] According to at least one embodiment of the present invention, it is possible to provide a support device that supports a first member and a second member while allowing relative movement between the first member and the second member. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a gas turbine according to an embodiment.

[0026] Figure 2 This is a schematic diagram showing an inlet portion of a combustor and a turbine of a gas turbine according to an embodiment.

[0027] Figure 3A The present invention is a perspective one-side cross-sectional view of a support device according to an embodiment.

[0028] Figure 3B It is a three-dimensional single-side cross-sectional view of a support device involved in another embodiment.

[0029] Figure 4A This is a schematic cross-sectional view for explaining an example of the structure of a support device according to some embodiments.

[0030] Figure 4B This is a schematic cross-sectional view for explaining another example of the structure of the support device according to some embodiments.

[0031] Figure 4C This is a schematic cross-sectional view for explaining another example of the structure of the support device according to some embodiments.

[0032] Figure 4D This is a schematic cross-sectional view for explaining another example of the structure of the support device according to some embodiments.

[0033] Figure 5A yes Figure 4A AA section view.

[0034] Figure 5B yes Figure 4B BB section view.

[0035] Figure 5C yes Figure 4B Sectional view in CC direction. DETAILED DESCRIPTION

[0036] Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the accompanying drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.

[0037] For example, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric" or "coaxial" indicate a relative or absolute configuration, and not only strictly indicate such a configuration, but also indicate a state of relative displacement at an angle or distance with a tolerance or a degree that can achieve the same function.

[0038] For example, expressions such as “same”, “equal” and “homogeneous” that indicate the equal state of objects not only indicate a strictly equal state but also indicate a state where there is a tolerance or a difference in the degree to which the same function can be obtained.

[0039] For example, expressions indicating shapes such as a quadrilateral and a cylinder not only indicate shapes such as a quadrilateral and a cylinder in a strict geometric sense, but also indicate shapes including concave and convex portions, chamfered portions, and the like within a range that can obtain the same effect.

[0040] On the other hand, the expressions “have”, “have”, “complete”, “include” or “have” are not exclusive expressions that exclude the existence of other constituent elements.

[0041] First, refer to Figure 1 , a gas turbine, which is an example of an application target of the support device according to one embodiment, will be described. Figure 1 This is a schematic structural diagram of a gas turbine according to an embodiment.

[0042] like Figure 1 As shown, the gas turbine 1 includes a compressor 2 for generating compressed air, a combustor 4 for generating combustion gas using the compressed air and fuel, and a turbine 6 configured to be rotationally driven by the combustion gas. In the case of the gas turbine 1 for power generation, a generator (not shown) is connected to the turbine 6.

[0043] The compressor 2 includes a plurality of stationary blades 16 fixed to the compressor chamber 10 side, and a plurality of moving blades 18 implanted on the rotor 8 so as to be alternately arranged with respect to the stationary blades 16 .

[0044] The air taken in from the air inlet port 12 is sent into the compressor 2 , and the air is compressed by passing through the plurality of stationary blades 16 and the plurality of moving blades 18 , thereby becoming high-temperature and high-pressure compressed air.

[0045] The fuel and the compressed air generated in the compressor 2 are supplied to the combustor 4, where the fuel is burned to generate the working fluid of the turbine 6, that is, the combustion gas. Figure 1 As shown, the gas turbine 1 includes a plurality of combustors 4 arranged in a casing 20 along a circumferential direction around a rotor 8 .

[0046] The turbine 6 has a combustion gas passage 28 formed by a turbine casing 22, and includes a plurality of stationary blades 24 and moving blades 26 disposed in the combustion gas passage 28. The stationary blades 24 and moving blades 26 of the turbine 6 are disposed downstream of the combustor 4 in the flow of the combustion gas.

[0047] The stationary blades 24 are fixed to the turbine housing 22 side, and a plurality of stationary blades 24 arranged along the circumferential direction of the rotor 8 constitute a stationary blade row. Furthermore, the moving blades 26 are planted on the rotor 8, and a plurality of moving blades 26 arranged along the circumferential direction of the rotor 8 constitute a moving blade row. The stationary blade row and the moving blade row are alternately arranged in the axial direction of the rotor 8.

[0048] In the turbine 6, the combustion gas from the combustor 4 flows into the combustion gas passage 28 and passes through the plurality of stationary blades 24 and the plurality of moving blades 26, thereby driving the rotor 8 to rotate around the axis O, thereby driving the generator connected to the rotor 8 to generate electricity. The combustion gas after driving the turbine 6 is discharged to the outside through the exhaust chamber 30.

[0049] (Burner 4)

[0050] Next, a description will be given of the burner 4 according to one embodiment.

[0051] Figure 2 It is a schematic diagram showing the inlet portion of the combustor 4 and the turbine 6 of the gas turbine 1 according to one embodiment.

[0052] In the gas turbine 1 according to some embodiments, a plurality of combustors 4 are arranged in the circumferential direction around the rotor 8 (see Figure 1 ) respectively include a combustion tube (combustor liner) 36 provided in a burner chamber 32 defined by a casing 20, first combustion furnaces 38 respectively arranged in the combustion tube 36, and a plurality of second combustion furnaces 44 arranged in a manner surrounding the first combustion furnace 38. That is, the combustion tube 36, the first combustion furnace 38, and the second combustion furnace 44 are accommodated in the casing 20.

[0053] The combustion tube (combustor liner) 36 includes an inner tube 48 disposed around the first combustion furnace 38 and the plurality of second combustion furnaces 44, and a tail tube 50 connected to the front end of the inner tube 48. The inner tube 48 and the tail tube 50 may be formed integrally.

[0054] The first combustion furnace 38 includes a first fuel nozzle 40 which is arranged along the direction of the central axis C1 of the combustion tube 36 (ie, the axial direction of the combustor 4) and is used to inject fuel. The first fuel nozzle 40 is supplied with fuel via a first fuel port 42.

[0055] The second combustion furnace 44 includes a second fuel nozzle 46 for injecting fuel. The second fuel nozzle 46 is supplied with fuel via the second fuel port 43 .

[0056] The combustor 4 further includes an outer tube 52 provided on the outer peripheral side of the inner tube 48 in the casing 20. An air passage 54 through which compressed air flows is formed on the outer peripheral side of the inner tube 48 and on the inner peripheral side of the outer tube 52.

[0057] In compressor 2 (reference Figure 1 ) is supplied to the burner chamber 32 via the chamber inlet 31, and the compressed air flows from the burner chamber 32 into the air passage 54 as combustion air, is changed in direction on the wall portion 53 provided along a surface orthogonal to the axial direction of the burner 4, and flows into the combustion furnace barrels of each combustion furnace 38, 44. Furthermore, in each combustion furnace barrel, the fuel injected from the fuel nozzle and the compressed air (combustion air) are mixed, and the mixed gas flows into the combustion barrel 36 and is ignited and burns, thereby generating combustion gas.

[0058] The first combustion furnace 38 may be a combustion furnace for generating a diffusion combustion flame, and the second combustion furnace 44 may be a combustion furnace for burning a premixed gas and generating a premixed combustion flame.

[0059] In this way, the combustion gas generated by the combustion of the fuel in the combustor 4 flows into the turbine 6 through the outlet portion 51 of the combustor 4 located at the downstream end portion of the transition piece 50 .

[0060] In addition, the combustor 4 may include other components such as a bypass pipe (not shown) for bypassing the combustion gas.

[0061] (Regarding the Support Device 100)

[0062] Figure 3A It is a perspective one-side cross-sectional view of a support device 100 according to an embodiment.

[0063] Figure 3B It is a perspective one-side cross-sectional view of a support device 100 according to another embodiment.

[0064] Figure 4A It is a schematic cross-sectional view for explaining an example of the structure of the support device 100 according to some embodiments.

[0065] Figure 4B This is a schematic cross-sectional view for explaining another example of the structure of the support device 100 according to some embodiments.

[0066] Figure 4C This is a schematic cross-sectional view for explaining another example of the structure of the support device 100 according to some embodiments.

[0067] Figure 4DThis is a schematic cross-sectional view for explaining another example of the structure of the support device 100 according to some embodiments.

[0068] The support device 100 according to some embodiments is a support device 100 for supporting a second member having a second wall facing the first wall with respect to a first member having a first wall.

[0069] The support device 100 according to some embodiments is a support device that allows relative movement of the steam pipe 72 as the first component and the combustion tube 36 as the second component while supporting the other component. The steam pipe 72 is, for example, a pipe through which cooling steam of the burner 4 flows. The steam pipe 72 is supplied with cooling steam via the steam port 74.

[0070] The support device 100 according to some embodiments includes at least one first strut 111 , at least one second strut 121 , and a connecting portion 150 .

[0071] (First support rod 111)

[0072] In the support device 100 involved in some embodiments, the first support rod 111 is a columnar or rod-shaped component, which has a first base end portion 112 connected to the pipe wall 73 of the steam distribution pipe 72 serving as the first wall, and an end on the side opposite to the first base end portion 112, namely, a first front end portion 113, and extends from the first base end portion 112 to the first front end portion 113 toward the cylinder 39 serving as the second wall.

[0073] In addition, Figure 3A and Figure 3B In the support device 100 shown in the figure, eight first stays 111 are arranged at intervals in the circumferential direction around the central axis Ax of the support device 100 .

[0074] (First end plate 101)

[0075] like Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 4C and Figure 4D As shown, in the support device 100 according to some embodiments, the first base end portion 112 is connected to the tube wall 73 as the first wall via the first end plate 101 .

[0076] The first end plate 101 is, for example, an annular member having an opening 101 a. In some embodiments, the support device 100 includes the first end plate 101, which makes it easier to connect the support device 100 to the tube wall 73 than when each of the first base ends 112 of the plurality of first struts 111 is directly connected to the tube wall 73.

[0077] In addition, in the support device 100 according to some embodiments, the first base end portion 112 may be directly connected to the tube wall 73 without the first end plate 101 .

[0078] (Second support rod 121)

[0079] In some embodiments of the support device 100, the second support rod 121 is a columnar or rod-shaped component, which has a second base end portion 122 connected to the cylinder 39 serving as the second wall, and a second front end portion 123 at an end on the opposite side of the second base end portion 122 and located closer to the tube wall 73 serving as the first wall than the first front end portion 113, and extends from the second base end portion 122 to the second front end portion 123 through the first front end portion 113 toward the tube wall 73 serving as the first wall.

[0080] In addition, Figure 3A and Figure 3B In the support device 100 shown in the figure, eight second stays 121 are arranged at intervals in the circumferential direction around the central axis Ax of the support device 100 .

[0081] (Second end plate 102)

[0082] like Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 4C and Figure 4D As shown, in the support device 100 according to some embodiments, the second base end portion 122 is connected to the cylinder 39 as the second wall via the second end plate 102 .

[0083] The second end plate 102 is, for example, a disc-shaped member, but may have an opening like the first end plate 101. In the support device 100 according to some embodiments, by including the second end plate 102, it is easier to connect the support device 100 to the cylinder 39 than in a case where each second base end portion 122 of the plurality of second struts 121 is directly connected to the cylinder 39.

[0084] In addition, in the support device 100 according to some embodiments, the second base end portion 122 may be directly connected to the cylinder 39 without passing through the second end plate 102 .

[0085] (Connection 150)

[0086] In the support device 100 involved in some embodiments, the connecting portion 150 is configured to have at least one third strut 131 extending along the extension direction within a position range between the first front end portion 113 and the second front end portion 123 in the extension direction of the first strut 111 and the second strut 121, and connecting the first front end portion 113 of the first strut 111 and the second front end portion 123 of the second strut 121.

[0087] In addition, Figure 3A and Figure 3B In the support device 100 shown in the figure, eight third stays 131 are arranged at intervals in the circumferential direction around the central axis Ax of the support device 100 , for example.

[0088] Thus, in the support device 100 according to some embodiments, the first strut 111 and the second strut 121 are connected in series in a zigzag manner via the connection portion 150. That is, in the support device 100 according to some embodiments, the first strut 111, the connection portion 150, and the second strut 121 are connected in series in a zigzag manner.

[0089] According to the support device 100 according to some embodiments having the above structure, by bending the first support rod 111 or the second support rod 121 in the direction intersecting the extension direction, the relative position of the steam pipe 72 and the combustion tube 36 is allowed to change in the direction intersecting the extension direction, and the other parts (the steam pipe 72 and the combustion tube 36) can be supported by each other. That is, according to the support device 100 according to some embodiments having the above structure, while ensuring the support strength of the parts supporting each other, it is possible to absorb the displacement between the steam pipe 72 as the first part and the combustion tube 36 as the second part, and the displacement in the direction intersecting the extension direction.

[0090] In addition, the support device 100 according to some embodiments may be Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 4C and Figure 4D The steam pipe 72 and the combustion tube 36 can be installed in the posture shown in the figure so that the vertical direction of the figure is consistent with the Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 4C and Figure 4D The steam pipe 72 and the combustion cylinder 36 are installed in a posture in which the posture shown is reversed.

[0091] like Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C As shown, the support device 100 according to some embodiments may include a plurality of first struts 111. In the support device 100 according to some embodiments, the number of the first struts 111 may be three or more.

[0092] Likewise, if Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C As shown, the support device 100 according to some embodiments may include a plurality of second struts 121. In the support device 100 according to some embodiments, the number of the second struts 121 may be three or more.

[0093] like Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C As shown, in the support device 100 according to some embodiments, three or more of the plurality of first struts 111 , the plurality of second struts 121 , and the plurality of third struts 131 may be arranged in a circumferential direction around the central axis Ax along the extending direction.

[0094] This can suppress a decrease in the rigidity of the support device 100 in a specific lateral direction when the steam pipe 72 and the combustion tube 36 are displaced in the lateral direction.

[0095] (Regarding the Minimum Structure of the Support Device 100)

[0096] In addition, if Figure 4D As shown, the support device 100 according to some embodiments may include, as a minimum structure, one first strut 111 , one second strut 121 , and a connecting portion 150 including one third strut 131 .

[0097] exist Figure 4D In the support device 100 shown, the third strut 131 of the connection portion 150 has one end 132 connected to the first front end portion 113 and the other end 133 connected to the second front end portion 123 at a position closer to the tube wall 73 as the first wall than the one end 132 .

[0098] In addition, if Figure 4D As shown, the first front end portion 113 and the one end 132 of the third strut 131 may be connected via a first connection portion 151 for connecting the first front end portion 113 and the one end 132 of the third strut 131 , or may be directly connected without the first connection portion 151 .

[0099] Likewise, if Figure 4DAs shown, the second front end portion 123 and the other end 133 of the third strut 131 may be connected via a second connection portion 152 for connecting the second front end portion 123 and the other end 133 of the third strut 131 , or may be directly connected without the second connection portion 152 .

[0100] exist Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown in FIG. Figure 4D Similarly to the support device 100 shown, the third strut 131 of the connection portion 150 has one end 132 connected to the first front end portion 113 and the other end 133 connected to the second front end portion 123 at a position closer to the tube wall 73 as the first wall than the one end 132 .

[0101] Thus, displacement in the lateral direction between the steam pipe 72 and the combustion tube 36, that is, in the direction intersecting the extending direction of the first strut 111 and the second strut 121, can be absorbed with a relatively simple structure. Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 4C and Figure 4D In the support device 100 shown, the two ends of the third strut 131, namely, one end 132 and the other end 133, are connected to the first front end 113 of the first strut 111 and the second front end 123 of the second strut 121, so that the size of these connection parts can be reduced to achieve weight reduction. As a result, the natural frequency of the support device 100 itself can be increased, so that resonance can be avoided and damage or functional failure of the support device 100 can be prevented.

[0102] exist Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the illustrated support device 100 , the connection portion 150 includes a plurality of third stays 131 .

[0103] Therefore, since the first support rod 111, the third support rod 131 and the second support rod 121 are connected in a zigzag shape, even if the distance between the steam piping 72 and the combustion tube 36 is short, it is possible to allow lateral displacement between the steam piping 72 and the combustion tube 36 while suppressing the longitudinal displacement between the steam piping 72 and the combustion tube 36, that is, the displacement in the above-mentioned extension direction.

[0104] When the support device 100 according to some embodiments includes two or more first stays 111 , the first stays 111 may be arranged at intervals in the circumferential direction around the central axis Ax of the support device 100 .

[0105] Similarly, when the support device 100 according to some embodiments includes two or more second stays 121 , the second stays 121 may be arranged at intervals in the circumferential direction around the central axis Ax of the support device 100 .

[0106] (Regarding the radial position of each strut)

[0107] exist Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown, the connection portion 150 includes: a first connection portion 151 to which the first front end portions 113 of a plurality of first struts 111 arranged circumferentially at a first radial position Pd1 around a central axis Ax along the extending direction are connected; and a second connection portion 152 to which the second front end portions 123 of a plurality of second struts 121 arranged circumferentially at a second radial position Pd2 closer to the inside than the first radial position Pd1 are connected. The first connection portion 151 is connected to the second connection portion 152 via the third strut 131.

[0108] In addition, as described later, Figure 4B As shown in the supporting device 100, when the first strut 111 or the second strut 121 is inclined with respect to the central axis Ax, the radial position of the first strut 111 or the second strut 121 at 1 / 2 of the length along the extending direction is set as the first radial position Pd1 or the second radial position Pd2.

[0109] That is, in Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown in the figure, each second strut 121 is arranged radially inwardly about the central axis Ax than each first strut 111 .

[0110] exist Figure 3A , Figure 3B , Figure 4A and Figure 4B In the support device 100 shown in FIG. 1 , the first connection portion 151 and the second connection portion 152 are connected by a plurality of third stays 131 arranged at intervals in the circumferential direction around the central axis Ax. Figure 3A , Figure 3B , Figure 4A and Figure 4BIn the illustrated support device 100 , one ends 132 of a plurality of third stays 131 arranged in parallel are connected to the first connection portion 151 , and the other ends 133 of the plurality of third stays 131 arranged in parallel are connected to the second connection portion 152 .

[0111] exist Figure 4C In the support device 100 shown in the figure, the connection portion 150 has a plurality of third stays 131 arranged at different positions in the radial direction around the central axis Ax.

[0112] Specifically, in Figure 4C In the support device 100 shown, the connection portion 150 includes a plurality of outer third stays 131A arranged at intervals in the circumferential direction at a third radial position Pd3 which is radially inward of the first radial position Pd1 and closest to the first radial position Pd1 .

[0113] exist Figure 4C In the support device 100 shown, the connection portion 150 includes a plurality of third intermediate stays 131B arranged at intervals in the circumferential direction at a fourth radial position Pd4 which is radially inward of the third radial position Pd3 and closest to the third radial position Pd3.

[0114] exist Figure 4C In the support device 100 shown in the figure, the connection portion 150 has a plurality of inner third stays 131C arranged at intervals in the circumferential direction at a fifth radial position Pd5 which is radially inward of and closest to the fourth radial position Pd4. The fifth radial position Pd5 is a radial position which is radially outward of and closest to the second radial position Pd2.

[0115] exist Figure 4C In the supporting device 100 shown, one ends 132 of a plurality of outer third stays 131A arranged in parallel are connected to the first connecting portion 151 , and the other ends 133 of a plurality of inner third stays 131C arranged in parallel are connected to the second connecting portion 152 .

[0116] exist Figure 4C In the supporting device 100 shown, the connecting portion 150 has an outer third connecting portion 153A that connects the other ends 133 of a plurality of outer third stays 131A arranged in parallel and one ends 132 of a plurality of middle third stays 131B arranged in parallel.

[0117] exist Figure 4CIn the supporting device 100 shown in the figure, the connecting portion 150 has an inner third connecting portion 153B to which the other ends 133 of the plurality of middle third stays 131B arranged in parallel and the one ends 132 of the plurality of inner third stays 131C arranged in parallel are connected.

[0118] Thus, in the support device 100 involved in some embodiments, since the first support rod 111, the third support rod 131 and the second support rod 121 are connected in a zigzag shape, it is possible to allow displacement between the steam piping 72 and the combustion tube 36 in the lateral direction, i.e., in the direction intersecting the extension direction of the first support rod 111 and the second support rod 121, while making the displacement between the steam piping 72 and the combustion tube 36 in the longitudinal direction, i.e., in the above-mentioned extension direction, relatively small.

[0119] In addition, Figure 4C In the supporting device 100 shown, the three third stays 131 of the outer third stay 131A, the middle third stay 131B, and the inner third stay 131C are connected in series on the connecting portion 150, but an odd number of five or more third stays 131 may be connected in series.

[0120] (Regarding the positions of each connecting portion and each end plate)

[0121] In the support device 100 according to some embodiments, the second connection portion 152 may or may not overlap with the first end plate 101 in the axial direction centered on the central axis Ax.

[0122] In the support device 100 according to some embodiments, the first connection portion 151 may or may not overlap with the second end plate 102 in the axial direction centered on the central axis Ax.

[0123] In the support device 100 according to some embodiments, the outer third connection portion 153A may or may not overlap with the second connection portion 152 or the first end plate 101 in the axial direction centered on the central axis Ax.

[0124] In the support device 100 according to some embodiments, the inner third connection portion 153B may or may not overlap with the first connection portion 151 or the second end plate 102 in the axial direction centered on the central axis Ax.

[0125] exist Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the supporting device 100 shown in FIG. 1 , the first connecting portion 151 is an annular connecting portion having a first opening 151a through which a plurality of second stays 121 can pass. Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the illustrated support device 100 , each second stay 121 is disposed so as to pass through the first opening 151 a of the first connection portion 151 .

[0126] Thus, each second strut 121 extending toward the tube wall 73 through the first distal end 113 to the second proximal end 122 passes through the first opening 151a of the first connecting portion 151 to which the plurality of first distal ends 113 are connected, thereby preventing interference between the second strut 121 and the first connecting portion 151. Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown, by providing the first opening 151 a in the first connection portion 151 , the first connection portion 151 can be made lighter and the natural frequency of the support device 100 itself can be increased, thereby avoiding resonance and preventing damage or malfunction of the support device 100 .

[0127] exist Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the supporting device 100 shown, the second connecting portion 152 may be an annular connecting portion having a second opening 152 a .

[0128] By providing the second opening 152 a , the second connection portion 152 can be made lighter and the natural frequency of the support device 100 itself can be increased, thereby avoiding resonance and preventing damage or malfunction of the support device 100 .

[0129] exist Figure 4C In the support device 100 shown in FIG. 1 , the inner third connection portion 153B is an annular connection portion having a plurality of openings 153Ba through which the second stays 121 can pass. Figure 4C In the supporting device 100 shown in the figure, each second stay 121 is arranged so as to pass through the opening 153Ba of the inner third connecting portion 153B.

[0130] exist Figure 4B In the support device 100 shown in FIG. 1 , each third stay 131 is inclined relative to the central axis Ax so that the size of the second connecting portion 152 becomes small. Figure 4B In the supporting device 100 shown in the figure, each third stay 131 is arranged so as to approach the central axis Ax as it moves from the one end 132 connected to the first connection portion 151 toward the other end 133 connected to the second connection portion 152 .

[0131] Thus, the second connection portion 152 can be reduced in size and weight, and the natural frequency of the support device 100 itself can be increased, so that resonance can be avoided and damage or malfunction of the support device 100 can be prevented.

[0132] In addition, Figure 4B In the support device 100 shown, in order to reduce the size of the first connecting portion 151 by reducing the first opening 151a of the first connecting portion 151, each second support rod 121 is configured to approach the center axis Ax as it moves from the second front end portion 123 connected to the second connecting portion 152 toward the second base end portion 122 connected to the second end plate 102.

[0133] Thus, the size of the first connection portion 151 can be reduced to achieve weight reduction, and the natural frequency of the support device 100 itself can be increased, so that resonance can be avoided and damage or malfunction of the support device 100 can be prevented.

[0134] However, in Figure 4B In the support device 100 shown, in order to reduce the size of the second connection portion 152 , each second stay 121 may be arranged to be away from the central axis Ax from the second front end portion 123 connected to the second connection portion 152 toward the second base end portion 122 connected to the second end plate 102 .

[0135] exist Figure 4B In the support device 100 shown in the figure, each first stay 111 is arranged so as to approach the central axis Ax from the first base end portion 112 connected to the first end plate 101 toward the first front end portion 113 connected to the first connection portion 151 .

[0136] Thus, the size of the first connection portion 151 can be reduced to achieve weight reduction, and the natural frequency of the support device 100 itself can be increased, so that resonance can be avoided and damage or malfunction of the support device 100 can be prevented.

[0137] exist Figure 4B In the support device 100 shown in FIG. 1 , each of the first struts 111 , each of the second struts 121 , and each of the third struts 131 are arranged to be inclined relative to the central axis Ax. Figure 4B In the supporting device 100 shown, if at least one of the second struts 121 or the third struts 131 is arranged to be inclined with respect to the central axis Ax, the first struts 111 may not be inclined with respect to the central axis Ax.

[0138] Similarly, in Figure 4B In the supporting device 100 shown, if at least one of the first struts 111 and the third struts 131 is arranged to be inclined with respect to the central axis Ax, the second struts 121 may not be inclined with respect to the central axis Ax.

[0139] exist Figure 4B In the supporting device 100 shown, if at least one of the first struts 111 and the second struts 121 is arranged to be inclined with respect to the central axis Ax, the third struts 131 may not be inclined with respect to the central axis Ax.

[0140] exist Figure 4C In the supporting device 100 shown in the figure, each of the first struts 111 may be arranged to be inclined with respect to the central axis Ax, and each of the second struts 121 may be arranged to be inclined with respect to the central axis Ax.

[0141] exist Figure 4C In the supporting device 100 shown, each outer third brace 131A may be arranged to be inclined relative to the central axis Ax, each middle third brace 131B may be arranged to be inclined relative to the central axis Ax, and each inner third brace 131C may be arranged to be inclined relative to the central axis Ax.

[0142] (Radial position of the end of each strut)

[0143] Figure 5A yes Figure 4A AA section view.

[0144] Figure 5B yes Figure 4B BB section view.

[0145] Figure 5C yes Figure 4B Sectional view in CC direction.

[0146] exist Figure 4A In the support device 100 shown, Figure 5A As shown, the second distal end portions 123 of the plurality of second struts 121 and the other ends 133 of the plurality of third struts 131 are arranged at different radial positions in the second connecting portion 152 .

[0147] exist Figure 4A In the illustrated support device 100 , similarly to the second connection portion 152 , the first distal end portions 113 of the plurality of first struts 111 and the one ends 132 of the plurality of third struts 131 are arranged at different radial positions in the first connection portion 151 .

[0148] exist Figure 4B In the support device 100 shown, Figure 5B As shown, the second distal end portions 123 of the plurality of second struts 121 and the other ends 133 of the plurality of third struts 131 are alternately arranged in the circumferential direction at the same radial position in the second connecting portion 152 .

[0149] according to Figure 4BThe support device 100 shown can reduce the size of the second connection portion 152 to achieve weight reduction, and can increase the natural frequency of the support device 100 itself, thereby avoiding resonance and preventing damage or malfunction of the support device 100.

[0150] In addition, Figure 4C In the support device 100 shown in FIG. Figure 4B Similarly to the support device 100 shown, the second distal end portions 123 of the plurality of second struts 121 and the other ends 133 of the plurality of inner third struts 131C may be alternately arranged in the circumferential direction at the same radial position in the second connection portion 152 .

[0151] exist Figure 4B In the support device 100 shown, Figure 5C As shown, the first distal end portions 113 of the plurality of first struts 111 and the one ends 132 of the plurality of third struts 131 are alternately arranged in the circumferential direction at the same radial position in the first connecting portion 151 .

[0152] according to Figure 4B The support device 100 shown can reduce the size of the first connection portion 151 to achieve weight reduction, and can increase the natural frequency of the support device 100 itself, thereby avoiding resonance and preventing damage or malfunction of the support device 100.

[0153] In addition, Figure 4A In the support device 100 shown in FIG. Figure 4B Similarly to the support device 100 shown, the first distal end portions 113 of the plurality of first struts 111 and the one ends 132 of the plurality of third struts 131 may be alternately arranged in the circumferential direction at the same radial position in the first connection portion 151 .

[0154] exist Figure 4C In the support device 100 shown in FIG. Figure 4B Similarly to the support device 100 shown, the first distal end portions 113 of the plurality of first struts 111 and the one ends 132 of the plurality of outer third struts 131A may be alternately arranged in the circumferential direction at the same radial position in the first connecting portion 151 .

[0155] exist Figure 4C In the support device 100 shown in FIG. Figure 4B Similarly to the first connection portion 151 or the second connection portion 152 of the support device 100 shown, the other ends 133 of the plurality of outer third struts 131A and the one ends 132 of the plurality of middle third struts 131B may be alternately arranged in the circumferential direction at the same radial position in the outer third connection portion 153A.

[0156] exist Figure 4CIn the support device 100 shown in FIG. Figure 4B Similarly to the first connection portion 151 or the second connection portion 152 of the support device 100 shown, the other ends 133 of the plurality of middle third struts 131B and the one ends 132 of the plurality of inner third struts 131C may be alternately arranged in the circumferential direction at the same radial position in the inner third connection portion 153B.

[0157] Figure 4C The support device 100 shown in the figure includes a third connecting portion 153. Figure 4C In the illustrated support device 100 , the third connection portion 153 includes an outer third connection portion 153A and an inner third connection portion 153B.

[0158] The other end 133 which is one end of the outer third stay 131A in the extending direction and the one end 132 which is one end of the middle third stay 131B in the extending direction are connected to the outer third connecting portion 153A.

[0159] The other end 133 which is the other end portion in the extending direction of the middle third stay 131B and the one end 132 which is the other end portion in the extending direction of the inner third stay 131C are connected to the inner third connecting portion 153B.

[0160] in this way, Figure 4C The support device 100 shown in the figure is provided with a third connecting portion 153 to which ends (one end 132 and the other end 133) of a plurality of third struts are connected. Among the plurality of third struts 131, regarding two third struts 131 (for example, the outer third strut 131A and the middle third strut 131B) adjacent in the radial direction around the central axis Ax, one ends of the third struts 131 are connected to each other (the other end 133 of the outer third strut 131A and the one end 132 of the middle third strut 131B) via the third connecting portion 153 (the outer third connecting portion 153A). Among the plurality of third struts 131, the other ends of two radially adjacent third struts 131 (for example, the middle third strut 131B and the inner third strut 131C) centered on the central axis Ax are connected to each other (the other end 133 of the middle third strut 131B and the one end 132 of the inner third strut 131C) via a third connecting portion 153 (inner third connecting portion 153B).

[0161] That is, in Figure 4C The support device 100 shown in the figure includes the third connecting portion 153 that connects one end portions or the other end portions of the plurality of third stays 131 in the extending direction.

[0162] according to Figure 4CThe support device 100 shown can connect the plurality of third stays 131 in series in a zigzag shape via the third connection portion 153, thereby increasing the number of zigzag turns. This can increase the allowable amount of lateral displacement between the steam pipe 72 and the combustion tube 36.

[0163] (Regarding the Thickness of the First Strut 111 and the Second Strut 121)

[0164] For example, Figure 3A As shown, in the support device 100 according to some embodiments, the first strut 111 and the second strut 121 may have a uniform thickness over the entire length except for the connection portions with the counterpart members at both ends.

[0165] And, for example Figure 3B As shown, in the support device 100 according to some embodiments, the first strut 111 may be thicker in a region from the first base end 112 to a certain axial position than in a region from the axial position to the first front end 113. This can increase the natural frequency of the support device 100 itself, thereby avoiding resonance and preventing damage or malfunction of the support device 100.

[0166] Furthermore, in the supporting device 100 according to some embodiments, Figure 3B As shown in the first strut 111, the second strut 121 may be thicker in the region from the second base end 122 to a certain axial position than in the region from the axial position to the second front end 123. This can increase the natural frequency of the support device 100 itself, thereby avoiding resonance and preventing damage or malfunction of the support device 100.

[0167] (Regarding the Manufacturing Method of the Support Device 100)

[0168] The support device 100 according to some embodiments described above can be obtained by, for example, connecting the first stay 111, the second stay 121, and the connecting portion 150 by welding. Also, the support device 100 according to some embodiments can be integrally formed by, for example, lamination molding.

[0169] That is, in the support device 100 according to some embodiments, at least one first strut 111 , at least one second strut 121 , and the connection portion 150 may be integrally formed by lamination molding.

[0170] Thus, even when the support device 100 has a relatively complicated shape, the support device 100 can be obtained relatively easily.

[0171] In addition, whether the support device 100 according to some embodiments is formed by lamination molding can be determined by, for example, viewing a cross section of the support device 100 .

[0172] The manufacturing method of the support device 100 involved in some embodiments is a manufacturing method of the support device 100 for supporting a combustion tube 36 as a second part having a cylinder 39 as a second wall opposite to the first wall relative to a steam distribution pipe 72 as a first part having a tube wall 73 as a first wall.

[0173] The manufacturing method of the support device 100 according to some embodiments is a manufacturing method of integrally forming the connection portion 150 of at least one first strut 111 , at least one second strut 121 , and at least one third strut 131 by stacking molding.

[0174] Thus, even when the support device 100 has a relatively complicated shape, the support device 100 can be manufactured relatively easily.

[0175] In addition, when the support device 100 involved in some embodiments is formed into an integral body by stacking molding, for example, the molding layers can be molded in a sequentially stacked manner along the central axis Ax. That is, when the support device 100 involved in some embodiments is formed into an integral body by stacking molding, the stacking direction can be set to the same direction as the axial direction of the central axis Ax.

[0176] In addition, when the support device 100 according to some embodiments is formed as one body by stacking, an inclined surface or the like may be provided in a portion to be an overhanging region during the molding.

[0177] The present invention is not limited to the above-described embodiment, and includes a form in which modifications are added to the above-described embodiment, and a form in which these forms are appropriately combined.

[0178] For example, the support device 100 according to some of the above-mentioned embodiments is a support device that supports the steam pipe 72 as the first component and the combustion tube 36 as the second component while allowing relative movement of the first component and the second component, but the first component and the second component are not limited to the steam pipe 72 and the combustion tube 36. For example, either the first component or the second component may be a component arranged on the side of the combustion tube 36, such as a pipe for circulating cooling steam, and the other may be the combustion tube 36.

[0179] The contents described in each of the above-mentioned embodiments can be understood, for example, as follows.

[0180] (1) The support device 100 according to at least one embodiment of the present invention is a support device 100 for supporting a second member (combustion tube 36 or steam pipe 72) having a second wall (tube wall 73 or tube body 39) opposite to the first member (steam pipe 72 or combustion tube 36) having a first wall (tube wall 73 or tube body 39). The support device 100 according to at least one embodiment of the present invention includes at least one first stay 111, the first stay 111 having a first base end 112 connected to the first wall (tube wall 73 or tube body 39) and a first front end 113 which is an end on the opposite side to the first base end 112, and extending from the first base end 112 to the first front end 113 toward the second wall (tube body 39 or tube wall 73). The support device 100 involved in at least one embodiment of the present invention has at least one second support rod 121, which has a second base end portion 122 connected to the second wall (cylinder 39 or tube wall 73), and a second front end portion 123 on the side opposite to the second base end portion 122 and located closer to the first wall (tube wall 73 or cylinder 39) than the first front end portion 113, and extends from the second base end portion 122 to the second front end portion 123 through the first front end portion 113 toward the first wall (tube wall 73 or cylinder 39). The support device 100 involved in at least one embodiment of the present invention includes a connecting portion 150, which has at least one third strut 131 extending along the extension direction within a position range between the first front end portion 113 and the second front end portion 123 in the extension direction of the first strut 111 and the second strut 121, and connects the first front end portion 113 of the first strut 111 and the second front end portion 123 of the second strut 121.

[0181] According to the structure of (1) above, it is possible to absorb the displacement between the first component (steam piping 72 or combustion tube 36) and the second component (combustion tube 36 or steam piping 72) and the displacement in the direction intersecting the extension direction of the first support rod 111 and the second support rod 121 while ensuring the supporting strength of each other.

[0182] (2) Some Embodiments In the structure of (1) above, the connection portion 150 may include: a first connection portion 151 connected to first front end portions 113 of a plurality of first struts 111 arranged circumferentially at a first radial position Pd1 around a central axis Ax along the extending direction; and a second connection portion 152 connected to second front end portions 123 of a plurality of second struts 121 arranged circumferentially at a second radial position Pd2 that is closer to the inside than the first radial position Pd1. The first connection portion 151 may be connected to the second connection portion 152 via a third strut 131.

[0183] According to the structure of (2) above, the first support rod 111, the third support rod 131 and the second support rod 121 are connected in a zigzag manner, so that it is possible to allow a lateral displacement between the first component (steam piping 72 or combustion tube 36) and the second component (combustion tube 36 or steam piping 72), that is, a displacement in a direction intersecting the extension direction of the first support rod 111 and the second support rod 121, while making the longitudinal displacement between the first component (steam piping 72 or combustion tube 36) and the second component (combustion tube 36 or steam piping 72), that is, the displacement in the above extension direction relatively small.

[0184] (3) In some embodiments, in the structure of (2) above, the first connection portion 151 may be an annular connection portion having a first opening 151 a through which a plurality of second stays 121 can pass.

[0185] According to the structure of (3) above, each second support rod 121 extending from the first front end portion 113 toward the first wall (tube wall 73 or cylinder 39) to the second base end portion 122 passes through the first opening 151a of the first connecting portion 151 connected to multiple first front end portions 113, thereby preventing interference between the second support rod 121 and the first connecting portion 151.

[0186] Furthermore, according to the configuration of (3) above, by providing the first opening 151 a , the first connection portion 151 can be made lighter and the natural frequency of the support device 100 itself can be increased, thereby avoiding resonance and preventing damage or malfunction of the support device 100 .

[0187] (4) Some Embodiments In the structure of (2) or (3) above, the second connection portion 152 may be an annular connection portion having a second opening 152 a .

[0188] According to the configuration of (4) above, by providing the second opening 152a, the second connection portion 152 can be made lighter and the natural frequency of the support device 100 itself can be increased, thereby avoiding resonance and preventing damage or malfunction of the support device 100.

[0189] (5) In some embodiments, in the structure of (1) above, the third support rod 131 of the connecting portion 150 may have one end 132 connected to the first front end portion 113, and another end 133 connected to the second front end portion 123 at a position closer to the first wall (tube wall 73 or cylinder 39) than the one end 132.

[0190] According to the structure of (5) above, the lateral displacement between the first component (steam pipe 72 or combustion tube 36) and the second component (combustion tube 36 or steam pipe 72) can be absorbed by a relatively simple structure. In addition, according to the structure of (5) above, the two ends of the third support rod 131, namely, one end 132 and the other end 133, are connected to the first front end 113 of the first support rod 111 and the second front end 123 of the second support rod 121, so that the size of these connection parts can be reduced and the weight can be reduced. As a result, the natural frequency of the support device 100 itself can be increased, so that resonance can be avoided and damage or functional failure of the support device 100 can be prevented.

[0191] (6) Some Embodiments In any of the structures (2) to (4) above, the connecting portion 150 may include a plurality of third struts 131 .

[0192] According to the structure of (6) above, since the first support rod 111, the third support rod 131 and the second support rod 121 are connected in a zigzag manner, even if the distance between the first component (steam piping 72 or combustion tube 36) and the second component (combustion tube 36 or steam piping 72) is short, it is possible to allow displacement between the first component (steam piping 72 or combustion tube 36) and the second component (combustion tube 36 or steam piping 72) in the lateral direction, i.e., in the direction intersecting the extension direction of the first support rod 111 and the second support rod 121, while suppressing displacement between the first component (steam piping 72 or combustion tube 36) and the second component (combustion tube 36 or steam piping 72) in the longitudinal direction, i.e., in the above-mentioned extension direction.

[0193] (7) Some Embodiments In the structure of (6) above, the plurality of third braces 131 may have one end 132 connected to the first connection portion 151 and another end 133 connected to the second connection portion 152 at a position closer to the first wall (tube wall 73 or cylinder 39) than the one end 132. The plurality of third braces 131 may be inclined relative to the central axis Ax in such a manner as to reduce the size of the second connection portion 152.

[0194] According to the configuration of (7), the second connection portion 152 can be reduced in size and weight, and the natural frequency of the support device 100 itself can be increased, thereby avoiding resonance and preventing damage or malfunction of the support device 100.

[0195] (8) Some Embodiments In the structure of (7) above, the second front end portions 123 of the plurality of second struts 121 and the other ends 133 of the plurality of third struts 131 may be alternately arranged in the circumferential direction at the same radial position in the second connecting portion 152 .

[0196] According to the configuration of (8) above, the second connection portion 152 can be reduced in size and weight, and the natural frequency of the support device 100 itself can be increased, thereby avoiding resonance and preventing damage or malfunction of the support device 100.

[0197] (9) Some embodiments In the structure of (7) or (8) above, the first front end portions 113 of the plurality of first struts 111 and the one ends 132 of the plurality of third struts 131 may be alternately arranged along the circumferential direction at the same radial position in the first connecting portion 151 .

[0198] According to the configuration of (9), the first connection portion 151 can be reduced in size and weight, and the natural frequency of the support device 100 itself can be increased, thereby avoiding resonance and preventing damage or malfunction of the support device 100.

[0199] (10) Some embodiments may include a third connecting portion 153 in the structure of (2) above to connect the ends of the plurality of third struts 131. Among the plurality of third struts 131, two third struts 131 that are adjacent in the radial direction about the central axis Ax may be connected to each other via the third connecting portion 153, one end (one end 132, the other end 133) of the third struts 131 or the other end (one end 132, the other end 133) of the third struts 131.

[0200] According to the structure of (10), a plurality of third struts 131 can be connected in series in a zigzag manner via the third connecting portion 153, thereby increasing the number of zigzag turns. Thus, the allowable amount of lateral displacement between the first component (steam pipe 72 or combustion tube 36) and the second component (combustion tube 36 or steam pipe 72) can be increased.

[0201] (11) Some Embodiments In the structure of (9) above, three or more of the plurality of first struts 111 , the plurality of second struts 121 , and the plurality of third struts 131 may be arranged in a circumferential direction around the central axis Ax along the extending direction.

[0202] According to the structure of (11) above, it is possible to suppress the rigidity of the support device 100 from decreasing in a specific lateral direction when the first component (steam pipe 72 or combustion tube 36) and the second component (combustion tube 36 or steam pipe 72) are displaced in the lateral direction.

[0203] (12) Some embodiments may include a first end plate 101 in the structure of (11) above, to which first base ends 112 of a plurality of first struts 111 arranged in a circumferential direction around a central axis Ax along the extending direction are connected. The first base ends 112 may be connected to the first wall (tube wall 73 or cylinder 39) via the first end plate 101.

[0204] According to the configuration of (12), the support device 100 can be easily connected to the first wall (tube wall 73 or tube body 39) compared to the case where the first base end portions 112 of the plurality of first struts 111 are directly connected to the first wall (tube wall 73 or tube body 39).

[0205] (13) Some embodiments may include a second end plate 102 in the structure of (12) above, to which second base ends 122 of a plurality of second struts 121 arranged in a circumferential direction around the central axis Ax along the extending direction are connected. The second base ends 122 may be connected to the second wall (cylindrical body 39 or tube wall 73) via the second end plate 102.

[0206] According to the structure of (13) above, the support device 100 can be easily connected to the second wall (cylindrical body 39 or tube wall 73) compared to the case where the second base end portions 122 of the plurality of second struts 121 are directly connected to the second wall (cylindrical body 39 or tube wall 73).

[0207] (14) Some Embodiments In the structure of (13) above, at least one first strut 111, at least one second strut 121 and the connecting portion 150 may be integrally formed by stacking.

[0208] According to the above-mentioned structure of (14), even when the support device 100 has a relatively complicated shape, the support device 100 can be obtained relatively easily.

[0209] (15) A method for manufacturing a support device 100 according to at least one embodiment of the present invention is a support device 100 for supporting a second component (combustion tube 36 or steam pipe 72) having a second wall (tube wall 73 or tube body 39) opposed to the first component (steam pipe 72 or combustion tube 36) having a first wall (tube wall 73 or tube body 39). The method for manufacturing a support device 100 according to at least one embodiment of the present invention forms at least one first support rod 111, at least one second support rod 121, and a connecting portion 150 as one body by stacking molding. Here, at least one first strut 111 has a first base end 112 connected to the first wall (tube wall 73 or cylinder 39) and a first front end 113 which is an end on the opposite side to the first base end 112, and extends toward the second wall (cylindrical body 39 or tube wall 73) from the first base end 112 to the first front end 113. At least one second strut 121 has a second base end 122 connected to the second wall (cylindrical body 39 or tube wall 73) and a second front end 123 which is an end on the opposite side to the second base end 122 and is located closer to the first wall (tube wall 73 or cylinder 39) than the first front end 113, and extends toward the first wall (tube wall 73 or cylinder 39) from the second base end 122 to the second front end 123 through the first front end 113. The connecting portion 150 has at least one third strut 131 extending along the extending direction within a position range between the first front end portion 113 and the second front end portion 123 in the extending direction of the first strut 111 and the second strut 121, and connects the first front end portion 113 of the first strut 111 and the second front end portion 123 of the second strut 121.

[0210] According to the method of (15) above, even when the support device 100 has a relatively complicated shape, the support device 100 can be manufactured relatively easily.

[0211] Explanation of symbols

[0212] 1-gas turbine, 36-combustion tube, 39-cylinder body, 72-steam pipe, 73-tube wall, 100-support device, 101-first end plate, 102-second end plate, 111-first support rod, 112-first base end portion, 113-first front end portion, 121-second support rod, 122-second base end portion, 123-third front end portion, 131-third support rod, 132-one end, 133-other end, 150-connecting portion, 151-first connecting portion, 151a-first opening, 152-second connecting portion, 152a-second opening, 153-3rd connecting portion.

Claims

1. A support device for supporting a second component having a second wall opposed to a first component having a first wall, the support device comprising: at least one first strut having a first base end connected to the first wall and a first front end opposite to the first base end, and extending from the first base end to the first front end toward the second wall; at least one second brace having a second base end connected to the second wall and a second front end opposite to the second base end and located closer to the first wall than the first front end, and extending from the second base end to the second front end through the first front end toward the first wall; and The connecting portion includes at least one third strut extending along the extending direction within a position range between the first front end portion and the second front end portion in the extending direction of the first strut and the second strut, and connects the first front end portion of the first strut and the second front end portion of the second strut.

2. The support device according to claim 1, wherein: The connecting portion comprises: a first connecting portion to which the first front end portions of a plurality of the first struts arranged in a circumferential direction at a first radial position around a central axis along the extending direction are connected; and a second connecting portion to which the second front end portions of a plurality of the second stays arranged in the circumferential direction at a second radial position that is closer to the inside than the first radial position are connected; The first connection portion is connected to the second connection portion via the third stay.

3. The support device according to claim 2, wherein: The first connection portion is an annular connection portion having a first opening through which a plurality of the second stays can pass.

4. The support device according to claim 2 or 3, wherein: The second connection portion is an annular connection portion having a second opening.

5. The support device according to claim 1, wherein: The third stay of the connection portion includes one end connected to the first front end portion and the other end connected to the second front end portion at a position closer to the first wall than the one end.

6. The support device according to claim 2, wherein: The connecting portion includes a plurality of the third stays.

7. The support device according to claim 6, wherein: The plurality of third stays have one end connected to the first connection portion and the other end connected to the second connection portion at a position closer to the first wall than the one end. The plurality of third stays are inclined with respect to the central axis so that the size of the second connection portion becomes smaller.

8. The support device according to claim 7, wherein: The second front end portions of the plurality of second struts and the other ends of the plurality of third struts are alternately arranged in the circumferential direction at the same radial position in the second connecting portion.

9. The support device according to claim 7 or 8, wherein: The first distal end portions of the plurality of first struts and the one ends of the plurality of third struts are alternately arranged along the circumferential direction at the same radial position in the first connecting portion.

10. The support device according to claim 2, comprising a third connecting portion to which ends of a plurality of the third stays are connected, Among the plurality of third struts, two third struts that are adjacent to each other in the radial direction around the central axis are connected at one ends or at the other ends via the third connecting portion.

11. The support device according to claim 9, wherein: The plurality of first struts, the plurality of second struts, and the plurality of third struts are arranged in a circumferential direction with three or more of them being centered on a central axis along the extending direction.

12. The support device according to claim 11, comprising a first end plate to which the first base ends of a plurality of the first stays arranged in a circumferential direction around a central axis along the extending direction are connected, The first base end portion is connected to the first wall via the first end plate.

13. The support device according to claim 12, comprising a second end plate to which the second base ends of a plurality of the second stays arranged in a circumferential direction around a central axis along the extending direction are connected, The second base end portion is connected to the second wall via the second end plate.

14. The support device according to claim 13, wherein: The at least one first strut, the at least one second strut, and the connecting portion are integrally formed by stacking.

15. A method for manufacturing a support device, the support device being used to support a second component having a second wall opposed to a first component having a first wall, the method for manufacturing the support device forming the following components into one piece by stacking molding: at least one first strut having a first base end connected to the first wall and a first front end opposite to the first base end, and extending from the first base end to the first front end toward the second wall; at least one second brace having a second base end connected to the second wall and a second front end opposite to the second base end and located closer to the first wall than the first front end, and extending from the second base end to the second front end through the first front end toward the first wall; and The connecting portion includes at least one third strut extending along the extending direction within a position range between the first front end portion and the second front end portion in the extending direction of the first strut and the second strut, and connects the first front end portion of the first strut and the second front end portion of the second strut.

Images