Support device and method for manufacturing a support device

Abstract

The present application provides a support device, comprising: at least one first support rod having a first base end connected to a first wall and a first front end, and extending from the first base end to the first front end toward a second wall; at least one second support rod having a second base end connected to the second wall, a second front end 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 a connecting portion having at least one third support rod extending along the extension direction of the first and second support rods within a position range between the first front end and the second front end, and connecting the first front end of the first support rod and the second front end of the second support rod.

Description

Technical Field

[0001] This invention relates to a support device and a method for manufacturing the support device.

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

[0003] A support device is known that allows relative movement between a first component and a second component while supporting each other.

[0004] For example, in the device described in Patent Document 1, it is configured to support the float while allowing relative movement between the horizontally placed partition and the float.

[0005] Previous technical documents

[0006] Patent documents

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

[0008] The technical problem to be solved by the invention

[0009] However, in the burners of industrial gas turbines, for example, piping for the flow of cooling steam, piping arranged along the side of the combustion chamber, is preferably supported on the combustion chamber. When these piping are installed on the combustion chamber via a support device, the support device must be a structure capable of absorbing the thermal expansion of these piping or the combustion chamber.

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

[0011] In view of the above, at least one embodiment of the present invention aims to provide a support device that allows relative movement between a first component and a second component while supporting each other.

[0012] means for solving technical problems

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

[0014] It is used to support a second component having a second wall opposite to the first wall relative to a first component having a first wall, the support device comprising:

[0015] At least one first strut has a first base end connected to the first wall and an end on the opposite side of the first base end, namely a first front end, and extends from the first base end to the first front end toward the second wall;

[0016] At least one second strut has a second base end connected to the second wall, and an end on the opposite side of the second base end and a second front end located closer to the first wall than the first front end, and extends from the second base end to the second front end through the first front end toward the first wall; and

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

[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 wall relative to a first component having a first wall. The method of manufacturing the support device is to form the following components integrally by layering:

[0020] At least one first strut has a first base end connected to the first wall and an end on the opposite side of the first base end, namely a first front end, and extends from the first base end to the first front end toward the second wall;

[0021] At least one second strut has a second base end connected to the second wall, and an end on the opposite side of the second base end and a second front end located closer to the first wall than the first front end, and extends from the second base end to the second front end through the first front end toward the first wall; and

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

[0023] Invention Effects

[0024] According to at least one embodiment of the present invention, a support device can be provided that allows relative movement between a first component and a second component while supporting each other. Attached Figure Description

[0025] Figure 1 This is a schematic structural diagram of a gas turbine according to one implementation method.

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

[0027] Figure 3A This is a three-dimensional one-sided sectional view of a support device according to one embodiment.

[0028] Figure 3B This is a three-dimensional one-sided sectional view of the support device involved in another embodiment.

[0029] Figure 4A This is a schematic cross-sectional view illustrating an example of the structure of a support device involved in some embodiments.

[0030] Figure 4B This is a schematic cross-sectional view used to illustrate another example of the structure of the support device involved in some embodiments.

[0031] Figure 4C This is a schematic cross-sectional view used to illustrate another example of the structure of the support device involved in some embodiments.

[0032] Figure 4D This is a schematic cross-sectional view used to illustrate another example of the structure of the support device involved in some embodiments.

[0033] Figure 5A yes Figure 4A AA-direction view sectional view.

[0034] Figure 5B yes Figure 4B BB-direction sectional view.

[0035] Figure 5C yes Figure 4B The CC-direction view section view. Detailed Implementation

[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 constituent components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.

[0037] For example, terms such as "in a certain direction," "along a certain direction," "parallel," "orthogonal," "center," "concentric," or "coaxial" indicate relative or absolute configurations. They not only strictly indicate such configurations but also indicate the state of relative displacement by angle or distance with tolerance or to the extent that the same function can be obtained.

[0038] For example, terms like "same," "equal," and "homogeneous" indicate that objects are in the same state. They not only strictly indicate that objects are equal, but also indicate that there are differences in tolerances or the degree to which they can achieve the same function.

[0039] For example, the representation of shapes such as quadrilaterals and cylinders not only refers to quadrilaterals and cylinders in the strict geometric sense, but also includes shapes with concave and convex parts, chamfered parts, etc., within the range where the same effect can be obtained.

[0040] On the other hand, expressions such as "possess", "have", "complete", "include", or "have" do not imply an exclusive expression that excludes the existence of other constituent elements.

[0041] First, refer to Figure 1 An example of the applicable object of the support device according to one embodiment is a gas turbine. Figure 1 This is a schematic structural diagram of a gas turbine according to one implementation method.

[0042] like Figure 1 As shown, the gas turbine 1 includes a compressor 2 for generating compressed air, a burner 4 for generating combustion gases using compressed air and fuel, and a turbine 6 configured to be driven by rotation through the combustion gases. 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 side of the compressor chamber 10 and a plurality of moving blades 18 installed on the rotor 8 in an alternating manner relative to the stationary blades 16.

[0044] Air entering through air inlet 12 is sent into compressor 2, where it is compressed by passing through multiple stationary blades 16 and multiple moving blades 18, thus becoming high-temperature and high-pressure compressed air.

[0045] Fuel and compressed air generated in compressor 2 are supplied to combustor 4, where the fuel is burned to generate the working fluid, i.e., combustion gas, for turbine 6. Figure 1 As shown, the gas turbine 1 has a plurality of burners 4 arranged circumferentially around the rotor 8 within the housing 20.

[0046] The turbine 6 has a combustion gas passage 28 formed through the turbine chamber 22, including 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 combustion gas.

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

[0048] In turbine 6, combustion gas from burner 4 flows into combustion gas passage 28 and drives rotor 8 to rotate around axis O by passing through multiple stationary blades 24 and multiple moving blades 26. This drives generator connected to rotor 8 to generate electricity. Combustion gas driving turbine 6 is then discharged to the outside through exhaust chamber 30.

[0049] (Burner 4)

[0050] Next, a burner 4 according to one embodiment will be described.

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

[0052] In some embodiments of the gas turbine 1, a plurality of burners 4 are arranged circumferentially around the rotor 8 (see reference). Figure 1 Each of the components includes a combustion tube (burner liner) 36 disposed in a burner chamber 32 defined by the housing 20, a first combustion furnace 38 disposed within the combustion tube 36, and a plurality of second combustion furnaces 44 disposed in a manner surrounding the first combustion furnace 38. That is, the combustion tube 36, the first combustion furnace 38, and the second combustion furnaces 44 are housed within the housing 20.

[0053] The combustion tube (burner liner) 36 has an inner cylinder 48 disposed around the first combustion furnace 38 and a plurality of second combustion furnaces 44, and a tail cylinder 50 connected to the front end of the inner cylinder 48. Alternatively, the inner cylinder 48 and the tail cylinder 50 may be formed as one piece.

[0054] The first combustion chamber 38 has a first fuel nozzle 40 arranged along the central axis C1 of the combustion chamber 36 (i.e., the axial direction of the burner 4) for injecting fuel. The first fuel nozzle 40 is supplied with fuel via a first fuel port 42.

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

[0056] The burner 4 also includes an outer cylinder 52 disposed inside the housing 20 on the outer periphery of the inner cylinder 48. An air passage 54 for compressed air to flow is formed on the outer periphery of the inner cylinder 48 and the inner periphery of the outer cylinder 52.

[0057] In compressor 2 (reference) Figure 1 The compressed air generated in the burner 4 is supplied to the burner chamber 32 via the chamber inlet 31. This compressed air, as combustion air, flows from the burner chamber 32 into the air passage 54, where it is redirected on a wall surface orthogonal to the axial direction of the burner 4, and flows into the combustion chambers of each of the combustion furnaces 38 and 44. Furthermore, in each combustion chamber, the fuel injected from the fuel nozzle and the compressed air (combustion air) are mixed. This mixture flows into the combustion chamber 36 and is ignited, thereby producing combustion gases.

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

[0059] Thus, the combustion gases generated by fuel combustion in the burner 4 flow into the turbine 6 via the outlet 51 of the burner 4 located at the downstream end of the tailpipe 50.

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

[0061] (Regarding support device 100)

[0062] Figure 3A This is a three-dimensional one-side sectional view of the support device 100 according to one embodiment.

[0063] Figure 3B This is a three-dimensional one-sided sectional view of the support device 100 according to another embodiment.

[0064] Figure 4A This is a schematic cross-sectional view illustrating an example of the structure of the support device 100 involved in some embodiments.

[0065] Figure 4B This is a schematic cross-sectional view illustrating another example of the structure of the support device 100 involved in some embodiments.

[0066] Figure 4C This is a schematic cross-sectional view illustrating another example of the structure of the support device 100 involved in some embodiments.

[0067] Figure 4DThis is a schematic cross-sectional view illustrating another example of the structure of the support device 100 involved in some embodiments.

[0068] Some embodiments involve a support device 100 for supporting a second component having a second wall opposite to the first wall relative to a first component having a first wall.

[0069] In some embodiments, the support device 100 is a support device that allows relative movement between the steam pipe 72 (a first component) and the combustion chamber 36 (a second component) while supporting each other. Furthermore, the steam pipe 72 is, for example, a pipe through which cooling steam flows from the burner 4. Cooling steam is supplied to the steam pipe 72 via a steam port 74.

[0070] Some embodiments of the support device 100 include at least one first support rod 111, at least one second support rod 121, and a connecting portion 150.

[0071] (Pole 111)

[0072] In some embodiments of the support device 100, the first strut 111 is a columnar or rod-shaped component having a first base end 112 connected to the pipe wall 73 of the steam pipe 72 which serves as the first wall, and an end opposite to the first base end 112, namely the first front end 113, and extending from the first base end 112 to the first front end 113 toward the cylinder 39 which serves as the second wall.

[0073] In addition, Figure 3A and Figure 3B In the support device 100 shown, there are, for example, eight first struts 111 arranged circumferentially spaced 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 some embodiments of the support device 100, the first base end 112 is connected to the tube wall 73, which serves 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 101a. In some embodiments of the support device 100, by having the first end plate 101, it is easier to connect the support device 100 to the pipe wall 73 compared to the case where the respective first base ends 112 of the plurality of first struts 111 are directly connected to the pipe wall 73.

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

[0078] (Second strut 121)

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

[0080] In addition, Figure 3A and Figure 3B In the support device 100 shown, there are, for example, eight second struts 121 arranged circumferentially spaced 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 some embodiments of the support device 100, the second base end 122 is connected to the cylinder 39, which serves as the second wall, via the second end plate 102.

[0083] The second end plate 102 is, for example, a disc-shaped component, but it may also have an opening like the first end plate 101. In some embodiments of the support device 100, by having the second end plate 102, it is easier to connect the support device 100 to the cylinder 39 compared to the case where the respective second base ends 122 of the plurality of second struts 121 are directly connected to the cylinder 39.

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

[0085] (Link 150)

[0086] In some embodiments of the support device 100, the connecting portion 150 is configured to have at least one third support rod 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 support rod 111 and the second support rod 121, and to connect the first front end portion 113 of the first support rod 111 and the second front end portion 123 of the second support rod 121.

[0087] In addition, Figure 3A and Figure 3B In the support device 100 shown, there are, for example, eight third struts 131 arranged circumferentially spaced around the central axis Ax of the support device 100.

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

[0089] According to some embodiments of the support device 100 having the above-described structure, by bending the first strut 111 or the second strut 121 in a direction intersecting the aforementioned extending direction, the relative positions of the steam pipe 72 and the combustion chamber 36 can change in the direction intersecting the aforementioned extending direction, while simultaneously supporting each other's components (steam pipe 72 and combustion chamber 36). That is, according to some embodiments of the support device 100 having the above-described structure, while ensuring the support strength of the components supporting each other, it can absorb displacement between the steam pipe 72 (the first component) and the combustion chamber 36 (the second component), and displacement in the direction intersecting the aforementioned extending direction.

[0090] In addition, the support device 100 involved in some embodiments can be... Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 4C and Figure 4D The posture shown is installed on the steam pipe 72 and the combustion cylinder 36, and the vertical direction shown in the figure can also be aligned with the direction shown in the figure. Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 4C and Figure 4D The reversed orientation shown is installed on the steam pipe 72 and the combustion chamber 36.

[0091] like Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C As shown, the support device 100 in some embodiments may have multiple first support rods 111. In some embodiments of the support device 100, there may be three or more first support rods 111.

[0092] Similarly, as Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C As shown, the support device 100 in some embodiments may have multiple second support rods 121. In some embodiments of the support device 100, there may be three or more second support rods 121.

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

[0094] Therefore, it is possible to suppress the decrease in rigidity of the support device 100 in a specific lateral direction when the steam pipe 72 and the combustion cylinder 36 are displaced laterally.

[0095] (Regarding the minimum structure of the support device 100)

[0096] In addition, such as Figure 4D As shown, the support device 100 in some embodiments may include a first support rod 111, a second support rod 121 as the minimum structure, and a connecting portion 150 having a third support rod 131.

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

[0098] In addition, such as Figure 4D As shown, the first front end 113 and one end 132 of the third support rod 131 can be connected via a first connecting portion 151 for connecting the first front end 113 and one end 132 of the third support rod 131, or they can be directly connected without using the first connecting portion 151.

[0099] Similarly, as Figure 4DAs shown, the second front end 123 and the other end 133 of the third support rod 131 can be connected via a second connecting portion 152 for connecting the second front end 123 and the other end 133 of the third support rod 131, or they can be directly connected without using the second connecting portion 152.

[0100] exist Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown, and with Figure 4D Similarly, the support device 100 shown has a third strut 131 of the connecting part 150 having one end 132 connected to the first front end 113 and another end 133 connected to the second front end 123 at a position closer to the pipe wall 73, which is the first wall, than the one end 132.

[0101] Therefore, with a relatively simple structure, it is possible to absorb displacement in the lateral direction between the steam pipe 72 and the combustion chamber 36, that is, in the direction intersecting the extending directions of the first support rod 111 and the second support rod 121. Furthermore, in 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. Therefore, reducing the size of these connecting parts enables weight reduction. As a result, the natural frequency of the support device 100 itself can be increased, thus avoiding resonance and preventing damage or malfunction of the support device 100.

[0102] exist Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown, the connecting part 150 includes a plurality of third struts 131.

[0103] Therefore, since the first strut 111, the third strut 131 and the second strut 121 are connected in a zigzag manner, even if the distance between the steam pipe 72 and the combustion cylinder 36 is short, it is possible to allow lateral displacement between the steam pipe 72 and the combustion cylinder 36 while suppressing longitudinal displacement between the steam pipe 72 and the combustion cylinder 36, that is, the aforementioned extension direction.

[0104] In some embodiments, when the support device 100 has two or more first support rods 111, each first support rod 111 can be arranged circumferentially spaced apart around the central axis Ax of the support device 100.

[0105] Similarly, in some embodiments, when the support device 100 has two or more second struts 121, each second strut 121 can be arranged circumferentially spaced apart 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 connecting portion 150 includes: a first connecting portion 151, connected to the first front end portion 113 of a plurality of first support rods 111 arranged circumferentially around a central axis Ax along the aforementioned extension direction at a first radial position Pd1; and a second connecting portion 152, connected to the second front end portion 123 of a plurality of second support rods 121 arranged circumferentially at a second radial position Pd2 closer to the inner side than the first radial position Pd1. The first connecting portion 151 is connected to the second connecting portion 152 via a third support rod 131.

[0108] Additionally, as will be explained later, such as Figure 4B As shown in the support device 100, when the first strut 111 or the second strut 121 is inclined relative to the central axis Ax, the radial position of the first strut 111 or the second strut 121 about half the length along the extension 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, each of the second struts 121 is arranged closer to the radially inner side centered on the central axis Ax than each of the first struts 111.

[0110] exist Figure 3A , Figure 3B , Figure 4A and Figure 4B In the support device 100 shown, the first connecting portion 151 and the second connecting portion 152 are connected by a plurality of third support rods 131 arranged circumferentially spaced about the central axis Ax. That is, in Figure 3A , Figure 3B , Figure 4A and Figure 4BIn the support device 100 shown, one end 132 of a plurality of third support rods 131 arranged side by side is connected to the first connecting part 151, and the other end 133 of the plurality of third support rods 131 arranged side by side is connected to the second connecting part 152.

[0111] exist Figure 4C In the support device 100 shown, the connecting part 150 has a plurality of third struts 131 arranged at different radial positions centered on the central axis Ax.

[0112] Specifically, in Figure 4C In the support device 100 shown, the connecting part 150 has a plurality of outer third support rods 131A arranged circumferentially at a third radial position Pd3 that is closer to the radial inner side than the first radial position Pd1 and closest to the first radial position Pd1.

[0113] exist Figure 4C In the support device 100 shown, the connecting part 150 has a plurality of intermediate third support rods 131B arranged circumferentially at a fourth radial position Pd4 that is closer to the radial inner side than the third radial position Pd3 and closest to the third radial position Pd3.

[0114] exist Figure 4C In the support device 100 shown, the connecting portion 150 has a plurality of inner third support rods 131C arranged circumferentially at a fifth radial position Pd5, which is closer to the radially inner side than the fourth radial position Pd4 and is closest to the fourth radial position Pd4. Furthermore, the fifth radial position Pd5 is a radial position that is closer to the radially outer side than the second radial position Pd2 and is closest to the second radial position Pd2.

[0115] exist Figure 4C In the support device 100 shown, one end 132 of a plurality of outer third support rods 131A arranged side by side is connected to the first connecting part 151, and the other end 133 of a plurality of inner third support rods 131C arranged side by side is connected to the second connecting part 152.

[0116] exist Figure 4C In the support device 100 shown, the connecting part 150 has an outer third connecting part 153A, which connects to the other end 133 of a plurality of outer third support rods 131A arranged side by side and one end 132 of a plurality of intermediate third support rods 131B arranged side by side.

[0117] exist Figure 4CIn the support device 100 shown, the connecting part 150 has an inner third connecting part 153B, which connects the other end 133 of a plurality of intermediate third support rods 131B arranged side by side and one end 132 of a plurality of inner third support rods 131C arranged side by side.

[0118] Thus, in the support device 100 of some embodiments, since the first support rod 111, the third support rod 131 and the second support rod 121 are connected in a zigzag manner, it is possible to allow displacement in the lateral direction between the steam pipe 72 and the combustion cylinder 36, that is, in the direction intersecting the extension directions of the first support rod 111 and the second support rod 121, while keeping the longitudinal direction between the steam pipe 72 and the combustion cylinder 36, that is, the aforementioned extension direction, relatively small.

[0119] In addition, Figure 4C In the support device 100 shown, on the connecting part 150, the three third support rods 131—the outer third support rod 131A, the middle third support rod 131B, and the inner third support rod 131C—are connected in series. However, it is also possible to connect five or more odd-numbered third support rods 131 in series.

[0120] (Regarding the location of each connecting part and each end plate)

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

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

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

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

[0125] exist Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown, the first connecting portion 151 is an annular connecting portion having a first opening 151a through which a plurality of second support rods 121 can pass. Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown, each of the second struts 121 is configured to pass through the first opening 151a of the first connecting portion 151.

[0126] Therefore, by passing through the first front end 113 and extending toward the pipe wall 73 to the second base end 122, and through the first opening 151a of the first connecting portion 151 connected to the plurality of first front ends 113, interference between the second support rod 121 and the first connecting portion 151 can be prevented. Furthermore, in Figure 3A , Figure 3B , Figure 4A , Figure 4B and Figure 4C In the support device 100 shown, by providing a first opening 151a in the first connecting portion 151, the first connecting portion 151 can be made lighter and the natural frequency of the support device 100 itself can be increased. Therefore, resonance can be avoided and damage or malfunction of the support device 100 can be prevented.

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

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

[0129] exist Figure 4C In the support device 100 shown, the inner third connecting part 153B is an annular connecting part with openings 153Ba through which multiple second support rods 121 can pass. Figure 4C In the support device 100 shown, each of the second struts 121 is configured to pass through the opening 153Ba of the inner third connecting portion 153B.

[0130] exist Figure 4B In the support device 100 shown, each of the third struts 131 is inclined relative to the central axis Ax, so that the size of the second connecting portion 152 is reduced. That is, in Figure 4B In the support device 100 shown, each of the third struts 131 is configured to move closer to the central axis Ax from one end 132 connected to the first connecting portion 151 toward the other end 133 connected to the second connecting portion 152.

[0131] Therefore, the size of the second connecting part 152 can be reduced to achieve weight reduction, and the natural frequency of the support device 100 itself can be increased, thus avoiding resonance and preventing damage or malfunction of the support device 100.

[0132] In addition, Figure 4B In the support device 100 shown, in order to reduce the size of the first connection 151 and thus reduce the first opening 151a of the first connection 151, each of the second support rods 121 is configured to move closer to the central axis Ax from the second front end 123 connected to the second connection 152 toward the second base end 122 connected to the second end plate 102.

[0133] Therefore, the size of the first connecting part 151 can be reduced to achieve weight reduction, and the natural frequency of the support device 100 itself can be increased, thus avoiding resonance and preventing damage or malfunction of the support device 100.

[0134] However, in Figure 4B In the support device 100 shown, in order to reduce the size of the second connecting portion 152, each of the second struts 121 can be configured to move away from the central axis Ax 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.

[0135] exist Figure 4B In the support device 100 shown, each of the first struts 111 is configured to move closer to the central axis Ax from the first base end 112 connected to the first end plate 101 toward the first front end 113 connected to the first connecting portion 151.

[0136] Therefore, the size of the first connecting part 151 can be reduced to achieve weight reduction, and the natural frequency of the support device 100 itself can be increased, thus avoiding resonance and preventing damage or malfunction of the support device 100.

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

[0138] Similarly, in Figure 4B In the support device 100 shown, if at least one of the first struts 111 or the third struts 131 is configured to be inclined relative to the central axis Ax, then the second struts 121 may not be inclined relative to the central axis Ax.

[0139] exist Figure 4B In the support device 100 shown, if at least one of the first struts 111 or the second struts 121 is configured to be inclined relative to the central axis Ax, then the third struts 131 may not be inclined relative to the central axis Ax.

[0140] exist Figure 4C In the support device 100 shown, each of the first struts 111 can be configured to be inclined relative to the central axis Ax, and each of the second struts 121 can be configured to be inclined relative to the central axis Ax.

[0141] exist Figure 4C In the support device 100 shown, each outer third strut 131A can be configured to be inclined relative to the central axis Ax, each middle third strut 131B can be configured to be inclined relative to the central axis Ax, and each inner third strut 131C can be configured to be inclined relative to the central axis Ax.

[0142] (Regarding the radial position of the ends of each strut)

[0143] Figure 5A yes Figure 4A AA-direction sectional view.

[0144] Figure 5B yes Figure 4B BB-direction sectional view.

[0145] Figure 5C yes Figure 4B The CC-direction view section view.

[0146] exist Figure 4A In the support device 100 shown, such as Figure 5A As shown, the second front ends 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 support device 100 shown, similarly to the second connecting portion 152, the first front ends 113 of the plurality of first struts 111 and the first ends 132 of the plurality of third struts 131 are arranged at different radial positions in the first connecting portion 151.

[0148] exist Figure 4B In the support device 100 shown, such as Figure 5B As shown, the second front ends 123 of the plurality of second struts 121 and the other ends 133 of the plurality of third struts 131 are alternately arranged circumferentially at the same radial position in the second connection 152.

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

[0150] In addition, Figure 4C In the support device 100 shown, and with Figure 4B Similarly, in the support device 100 shown, the second front ends 123 of the plurality of second struts 121 and the other ends 133 of the plurality of inner third struts 131C can be alternately arranged circumferentially at the same radial position in the second connection portion 152.

[0151] exist Figure 4B In the support device 100 shown, such as Figure 5C As shown, the first front ends 113 of the plurality of first struts 111 and the first ends 132 of the plurality of third struts 131 are alternately arranged circumferentially 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 connecting part 151 to achieve weight reduction, and can increase the natural frequency of the support device 100 itself, thus avoiding resonance and preventing damage or malfunction of the support device 100.

[0153] In addition, Figure 4A In the support device 100 shown, and with Figure 4B Similarly, in the support device 100 shown, the first front ends 113 of the plurality of first struts 111 and the first ends 132 of the plurality of third struts 131 can be alternately arranged circumferentially at the same radial position in the first connecting portion 151.

[0154] exist Figure 4C In the support device 100 shown, and with Figure 4B Similarly, in the support device 100 shown, the first front ends 113 of the plurality of first struts 111 and the first ends 132 of the plurality of outer third struts 131A can be alternately arranged circumferentially at the same radial position in the first connecting portion 151.

[0155] exist Figure 4C In the support device 100 shown, and with Figure 4B Similarly, in the support device 100 shown, the other ends 133 of the plurality of outer third struts 131A and the one end 132 of the plurality of intermediate third struts 131B can be alternately arranged circumferentially at the same radial position in the outer third connection 153A.

[0156] exist Figure 4CIn the support device 100 shown, and with Figure 4B Similarly, in the support device 100 shown, the other ends 133 of the plurality of intermediate third struts 131B and the one end 132 of the plurality of inner third struts 131C can be alternately arranged circumferentially at the same radial position in the inner third connection 153B.

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

[0158] On the outer third connecting part 153A, there is a connection to one end 133 of the outer third support rod 131A in the aforementioned extension direction, and one end 132 of the middle third support rod 131B in the aforementioned extension direction.

[0159] On the inner third connecting part 153B, there is connected the other end 133 of the middle third support rod 131B in the aforementioned extension direction, and the other end 132 of the inner third support rod 131C in the aforementioned extension direction.

[0160] in this way, Figure 4C The support device 100 shown includes a third connecting portion 153 connecting the ends (one end 132, the other end 133) of a plurality of third struts. Among the plurality of third struts 131, for two third struts 131 that are radially adjacent about the central axis Ax (e.g., outer third strut 131A and middle third strut 131B), one end of each third strut 131 (the other end 133 of outer third strut 131A and one end 132 of middle third strut 131B) is connected to each other via the third connecting portion 153 (outer third connecting portion 153A). In a plurality of third struts 131, the other ends of two radially adjacent third struts 131 (e.g., 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 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 includes a third connecting portion 153 in which one end of a plurality of third struts 131 are connected to each other or the other end of each other in the aforementioned extension direction.

[0162] according to Figure 4CThe support device 100 shown can connect multiple third struts 131 in a zigzag manner via the third connecting part 153, thus increasing the number of zigzag turns. As a result, the allowable lateral displacement between the steam pipe 72 and the combustion chamber 36 can be increased.

[0163] (Regarding the thickness of the first strut 111 and the second strut 121)

[0164] For example, such as Figure 3A As shown, in some embodiments of the support device 100, the first strut 111 and the second strut 121, in addition to the connecting portions with the opposite side components connected at both ends, can also extend along their entire length and have a uniform thickness.

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

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

[0167] (Regarding the manufacturing method of the support device 100)

[0168] The support device 100 described in some of the above embodiments can be obtained, for example, by welding together the components constituting the first support rod 111, the second support rod 121, and the connecting portion 150. Furthermore, the support device 100 described in some embodiments can be obtained, for example, by layering and forming it into a single unit.

[0169] That is, in some embodiments of the support device 100, at least one first support rod 111, at least one second support rod 121 and the connecting part 150 can be integrally formed by stacking.

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

[0171] In addition, whether the support device 100 involved in some embodiments is formed by layering can be determined by examining the cross-section of the support device 100.

[0172] Some embodiments involve a method for manufacturing a support device 100, which is used to support a combustion cylinder 36, which has a cylinder 39, which is a second component, and has a second wall opposite to the first wall, relative to a steam pipe 72, which has a pipe wall 73 as a first component and has a pipe wall 73 as a first component.

[0173] Some embodiments involve a method of manufacturing the support device 100 by forming the connecting portion 150 of at least one first support rod 111, at least one second support rod 121 and at least one third support rod 131 into one piece through a layered molding process.

[0174] Therefore, even when the support device 100 has a relatively complex shape, it is relatively easy to manufacture the support device 100.

[0175] Furthermore, when the support device 100 according to some embodiments is formed into a single unit through layering, the molding layers can be shaped sequentially along the central axis Ax. That is, when the support device 100 according to some embodiments is formed into a single unit through layering, the layering direction can be set to the same direction as the axial direction of the central axis Ax.

[0176] Furthermore, when the support device 100 involved in some embodiments is formed as a single unit through layering and shaping, an inclined surface or the like can be provided in the part that becomes the hanging area during shaping.

[0177] The present invention is not limited to the above embodiments, but also includes ways to add modifications to the above embodiments and ways to combine these methods appropriately.

[0178] For example, the support device 100 described in some of the above embodiments is a support device that supports each other while allowing relative movement between the steam pipe 72 (as the first component) and the combustion chamber 36 (as the second component). However, the first component and the second component are not limited to the steam pipe 72 and the combustion chamber 36. For example, either the first component or the second component may be a component such as a pipe for circulating cooling steam disposed on the side of the combustion chamber 36, and the other component may be the combustion chamber 36 itself.

[0179] The contents described in the above embodiments are 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 component (combustion cylinder 36 or steam pipe 72) having a second wall (cylinder 39 or pipe wall 73) opposite to the first wall (pipe wall 73 or cylinder 39) relative to a first component (steam pipe 72 or combustion cylinder 36) having a first wall (pipe wall 73 or cylinder 39). The support device 100 according to at least one embodiment of the present invention includes at least one first strut 111, which has a first base end 112 connected to the first wall (pipe wall 73 or cylinder 39) and an end on the side opposite to the first base end 112, namely a first front end 113, and extends from the first base end 112 to the first front end 113 toward the second wall (cylinder 39 or pipe wall 73). The support device 100 according to at least one embodiment of the present invention includes at least one second strut 121, which has a second base end 122 connected to the second wall (cylinder 39 or tube wall 73) and an end on the opposite side of the second base end 122 and a second front end 123 located closer to the first wall (tube wall 73 or cylinder 39) than the first front end 113, and extends from the second base end 122 to the second front end 123 through the first front end 113 toward the first wall (tube wall 73 or cylinder 39). The support device 100 according to at least one embodiment of the present invention includes a connecting portion 150, which has at least one third support rod 131 extending along the extension direction within a position range between a first front end portion 113 and a second front end portion 123 in the extension direction of the first support rod 111 and the second support rod 121, and connects the first front end portion 113 of the first support rod 111 and the second front end portion 123 of the second support rod 121.

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

[0182] (2) In some embodiments, in the structure described in (1) above, the connecting portion 150 may include: a first connecting portion 151, connected to the first front end portion 113 of a plurality of first struts 111 arranged circumferentially around the central axis Ax along the aforementioned extension direction at a first radial position Pd1; and a second connecting portion 152, connected to the second front end portion 123 of a plurality of second struts 121 arranged circumferentially at a second radial position Pd2 closer to the inner side than the first radial position Pd1. The first connecting portion 151 may be connected to the second connecting portion 152 via a third strut 131.

[0183] According to the structure described in (2) above, the first strut 111, the third strut 131 and the second strut 121 are connected in a zigzag manner. Therefore, it is possible to allow displacement in the lateral direction between the first component (steam pipe 72 or combustion cylinder 36) and the second component (combustion cylinder 36 or steam pipe 72), that is, in the direction that intersects the extension direction of the first strut 111 and the second strut 121, while making the displacement in the longitudinal direction between the first component (steam pipe 72 or combustion cylinder 36) and the second component (combustion cylinder 36 or steam pipe 72), that is, in the aforementioned extension direction, relatively small.

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

[0185] According to the structure described above (3), by passing through the first front end 113 toward the first wall (pipe wall 73 or cylinder 39) to the second base end 122, each of the second support rods 121 can pass through the first opening 151a of the first connecting portion 151 connected to the plurality of first front ends 113, thus preventing interference between the second support rods 121 and the first connecting portion 151.

[0186] Furthermore, according to the structure described in (3) above, by providing the first opening 151a, the first connecting part 151 can be made lighter and the natural frequency of the support device 100 itself can be increased, thus avoiding resonance and preventing damage or malfunction of the support device 100.

[0187] (4) In some embodiments, in the structure of (2) or (3) above, the second connecting part 152 may be an annular connecting part having a second opening 152a.

[0188] According to the structure described in (4) above, by providing the second opening 152a, the second connecting part 152 can be made lighter and the natural frequency of the support device 100 itself can be increased. Therefore, resonance can be avoided and damage or malfunction of the support device 100 can be prevented.

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

[0190] According to the structure described in (5) above, the lateral displacement between the first component (steam pipe 72 or combustion chamber 36) and the second component (combustion chamber 36 or steam pipe 72) can be absorbed through a relatively simple structure. Furthermore, according to the structure described in (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, thus reducing the size of these connecting parts and achieving weight reduction. As a result, 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.

[0191] (6) In some embodiments, in any of the structures in (2) to (4) above, the connecting part 150 may include a plurality of third struts 131.

[0192] According to the structure described in (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 pipe 72 or combustion cylinder 36) and the second component (combustion cylinder 36 or steam pipe 72) is short, it is possible to allow displacement in the lateral direction between the first component (steam pipe 72 or combustion cylinder 36) and the second component (combustion cylinder 36 or steam pipe 72), that is, in the direction that intersects with the extension direction of the first support rod 111 and the second support rod 121, while suppressing displacement in the longitudinal direction between the first component (steam pipe 72 or combustion cylinder 36) and the second component (combustion cylinder 36 or steam pipe 72), that is, in the aforementioned extension direction.

[0193] (7) In some embodiments, in the structure described in (6) above, the plurality of third struts 131 may have one end 132 connected to the first connecting portion 151, and the other end 133 connected to the second connecting portion 152 at a position closer to the first wall (pipe wall 73 or cylinder 39) than the one end 132. The plurality of third struts 131 may be inclined relative to the central axis Ax in a manner that reduces the size of the second connecting portion 152.

[0194] According to the structure described in (7), the size of the second connecting part 152 can be reduced to achieve weight reduction, and the natural frequency of the support device 100 itself can be increased. Therefore, resonance can be avoided to prevent damage or malfunction of the support device 100.

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

[0196] According to the structure described in (8), the size of the second connecting part 152 can be reduced to achieve weight reduction, and the natural frequency of the support device 100 itself can be increased. Therefore, resonance can be avoided to prevent damage or malfunction of the support device 100.

[0197] (9) In some embodiments, in the structure described in (7) or (8) above, each of the first front ends 113 of the plurality of first struts 111 and each of the first ends 132 of the plurality of third struts 131 can be alternately arranged circumferentially at the same radial position in the first connecting portion 151.

[0198] According to the structure described above (9), the size of the first connecting part 151 can be reduced to achieve weight reduction, and the natural frequency of the support device 100 itself can be increased. Therefore, resonance can be avoided to prevent damage or malfunction of the support device 100.

[0199] (10) In some embodiments, the structure described in (2) above may include a third connecting portion 153 connecting the ends of a plurality of third struts 131. Regarding two third struts 131 that are radially adjacent to each other with the central axis Ax as the center, 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 may be connected to each other via the third connecting portion 153.

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

[0201] (11) In some embodiments, in the structure of (9) above, a plurality of first struts 111, a plurality of second struts 121 and a plurality of third struts 131 may be arranged in three or more in the circumferential direction centered on the central axis Ax along the above-mentioned extension direction.

[0202] According to the structure described above (11), the rigidity of the support device 100 can be suppressed from decreasing in a specific lateral direction when the first component (steam pipe 72 or combustion cylinder 36) and the second component (combustion cylinder 36 or steam pipe 72) are displaced in the lateral direction.

[0203] (12) In some embodiments, the structure described in (11) above may include a first end plate 101, which is connected to a first base end 112 of a plurality of first struts 111 arranged circumferentially around the central axis Ax along the aforementioned extension direction. The first base end 112 may be connected to the first wall (pipe wall 73 or cylinder 39) via the first end plate 101.

[0204] According to the structure described above (12), compared with the case where the first base ends 112 of the plurality of first struts 111 are directly connected to the first wall (pipe wall 73 or cylinder 39), the support device 100 is easier to connect to the first wall (pipe wall 73 or cylinder 39).

[0205] (13) In some embodiments, the structure described in (12) above may include a second end plate 102, which is connected to the second base end 122 of a plurality of second struts 121 arranged circumferentially about the central axis Ax along the aforementioned extension direction. The second base end 122 may be connected to the second wall (cylinder 39 or pipe wall 73) via the second end plate 102.

[0206] According to the structure described above (13), compared with the case where the second base ends 122 of the plurality of second struts 121 are directly connected to the second wall (cylinder 39 or pipe wall 73), the support device 100 is more easily connected to the second wall (cylinder 39 or pipe wall 73).

[0207] (14) In some embodiments, in the structure described in (13) above, at least one first support rod 111, at least one second support rod 121 and connecting part 150 can be integrally formed by stacking.

[0208] Based on the structure described above (14), even if the support device 100 has a relatively complex shape, the support device 100 can be obtained relatively easily.

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

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

[0211] Symbol Explanation

[0212] 1-Gas turbine, 36-Combustion cylinder, 39-Cylinder body, 72-Steam piping, 73-Pipe wall, 100-Support device, 101-First end plate, 102-Second end plate, 111-First strut, 112-First base end, 113-First front end, 121-Second strut, 122-Second base end, 123-Second front end, 131-Third strut, 132-One end, 133-The other end, 150-Connecting part, 151-First connecting part, 151a-First opening, 152-Second connecting part, 152a-Second opening, 153-Third connecting part.

Claims

1. A support device for supporting a second component having a second wall opposite to the first wall relative to a first component having a first wall, the support device comprising: At least one first strut has a first base end connected to the first wall and an end on the opposite side of the first base end, namely a first front end, and extends from the first base end to the first front end toward the second wall; At least one second strut has a second base end connected to the second wall, and an end on the opposite side of the second base end and a second front end located closer to the first wall than the first front end, and extends from the second base end to the second front end through the first front end toward the first wall; and The connecting portion has at least one third support rod 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 support rod and the second support rod, and connects the first front end portion of the first support rod and the second front end portion of the second support rod. The connecting part includes: The first connecting portion connects to the first front end of a plurality of first struts arranged circumferentially at a first radial position around a central axis along the extending direction; and The second connecting portion connects to the second front end of a plurality of second struts arranged circumferentially at a second radial position that is closer to the inside than the first radial position. The first connecting part is connected to the second connecting part via the third support rod.

2. The support device according to claim 1, wherein, The first connecting part is an annular connecting part having a first opening through which multiple second struts can pass.

3. The support device according to claim 1 or 2, wherein, The second connecting part is an annular connecting part with a second opening.

4. The support device according to claim 1, wherein, The third strut of the connecting part has one end connected to the first front end and the other end connected to the second front end at a position closer to the first wall side than the first end.

5. The support device according to claim 1, wherein, The connecting part includes a plurality of the third struts.

6. The support device according to claim 5, wherein, The plurality of third struts have one end connected to the first connecting portion and another end connected to the second connecting portion at a position closer to the first wall than the first end. The plurality of the third struts are tilted relative to the central axis in such a manner that the size of the second connection portion decreases.

7. The support device according to claim 6, wherein, The second front ends of the plurality of second struts and the other ends of the plurality of third struts are alternately arranged circumferentially at the same radial position in the second connection.

8. The support device according to claim 6 or 7, wherein, The first front ends of the plurality of first struts and the first ends of the plurality of third struts are alternately arranged circumferentially at the same radial position in the first connection.

9. The support device according to claim 1, further comprising a third connecting portion to which the ends of the plurality of third support rods are connected. Regarding two radially adjacent third struts centered on the central axis, one end of the third strut is connected to the other or the other end of the third strut via the third connecting portion.

10. The support device according to claim 8, wherein, The plurality of the first struts, the plurality of the second struts, and the plurality of the third struts are arranged in three or more circumferential directions centered on the central axis along the extension direction.

11. The support device according to claim 10, comprising a first end plate connected to the first base end of a plurality of first struts arranged circumferentially about a central axis along the extending direction. The first base end is connected to the first wall via the first end plate.

12. The support device according to claim 11, comprising a second end plate connected to the second base end of a plurality of the second struts arranged circumferentially about a central axis along the extending direction. The second base end is connected to the second wall via the second end plate.

13. The support device according to claim 12, wherein, The at least one first support rod, the at least one second support rod, and the connecting part are integrally formed by layering.

14. A method for manufacturing a support device, the support device being used to support a second component having a second wall opposite to the first wall relative to the first component having a first wall, the method of manufacturing the support device being to integrally form the following components by layering: At least one first strut has a first base end connected to the first wall and an end on the opposite side of the first base end, namely a first front end, and extends from the first base end to the first front end toward the second wall; At least one second strut has a second base end connected to the second wall, and an end on the opposite side of the second base end and a second front end located closer to the first wall than the first front end, and extends from the second base end to the second front end through the first front end toward the first wall; and The connecting portion has at least one third support rod 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 support rod and the second support rod, and connects the first front end portion of the first support rod and the second front end portion of the second support rod. The connecting part includes: The first connecting portion connects to the first front end of a plurality of first struts arranged circumferentially at a first radial position around a central axis along the extending direction; and The second connecting portion connects to the second front end of a plurality of second struts arranged circumferentially at a second radial position that is closer to the inside than the first radial position. The first connecting part is connected to the second connecting part via the third support rod.

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