Rotor hanger, rotor support jig, and rotor storage unit

Abstract

This rotor hanger is provided with: a beam extending in parallel with an axial direction above a rotor body; a ring support part attachable to and detachable from a support ring; a rotor support part in which a pair is disposed at an interval in the axial direction and supporting the rotor body from below; a vertical position adjustment part capable of adjusting a position in a vertical direction of the rotor support part with respect to the beam; a rotor movement connection part for supporting the rotor support part with respect to the beam so as to be movable in the axial direction; and a ring movement connection part for supporting the ring support part with respect to the beam so as to be movable in the axial direction, independently of the rotor movement connection part.

Description

Rotor lifting tool, rotor support jig, and rotor accommodation unit

[0001] This application claims priority to Japanese Patent Application No. 2023-140974, filed on August 31, 2023, the contents of which are incorporated herein by reference.

[0002] Rotary machines such as centrifugal compressors and steam turbines include a rotor that rotates about an axis and a casing that encloses the rotor. The rotor has a rotor body that extends in an axial direction about the axis and multiple impellers arranged on a rotor shaft. Some such rotary machines have a casing that can be separated into an upper half and a lower half, as shown in Patent Document 1. When performing maintenance or replacement of the rotor, the upper half of the casing is removed from the lower half, exposing the upper half of the rotor within the casing. The rotor is then lifted and removed from the lower half, and maintenance or replacement of the rotor is performed.

[0003] When lifting and removing a rotor from the lower half of the casing, a rotor lifting tool is used to support the rotor at multiple axially spaced locations. For example, Patent Document 1 (JP-A-2005-102626) describes a rotor lifting tool that can improve the efficiency of rotor removal. This rotor lifting tool includes a beam extending parallel to the rotor body, a ring support part that is detachable from the rotor body at a location where a seal is located, a rotor support part that is detachable from the rotor body at a location where a bearing is located, and a vertical position adjustment part that can adjust the vertical position of the rotor support part relative to the beam. Using this rotor lifting tool, it is possible to lift the rotor with not only the rotor body but also the seal part attached to the rotor body.

[0004] Japanese Patent Application Laid-Open No. 2021-124117

[0005] The rotors lifted by the rotor lifting device described above vary in size depending on the compressor in which they are used. In particular, as the axial length of the rotor changes, the positions of the seals and bearings also change. This means that separate rotor lifting devices must be prepared for each rotor. However, preparing separate rotor lifting devices not only increases costs but also increases storage space. Therefore, there is a demand for a rotor lifting device that can accommodate changes in the axial length of the rotor.

[0006] The present disclosure provides a rotor lifting tool, a rotor support jig, and a rotor housing unit that can accommodate changes in the axial length of the rotor.

[0007] A rotor hoisting tool according to the present disclosure is capable of suspending a rotor comprising: a rotor body extending in an axial direction; a pair of annular support rings disposed at first and second ends of the rotor body with a gap in the axial direction and provided radially outward of the rotor body; and a pair of seal members disposed on an inner peripheral surface of the support rings with a clearance between them and an outer peripheral surface of the rotor body. The rotor hoisting tool comprises a beam extending parallel to the axial direction above the rotor body, and a pair of rings disposed at a gap in the axial direction and detachable from the support rings. a pair of rotor support parts arranged at intervals in the axial direction and detachable from the ring support parts at different positions in the axial direction to support the rotor body from below; a vertical position adjustment part that can adjust the vertical position of the rotor support parts relative to the beam; a rotor moving connection part that supports the rotor support parts relative to the beam so that they can move in the axial direction; and a ring moving connection part that supports the ring support parts relative to the beam so that they can move in the axial direction, independent of the rotor moving connection part.

[0008] In addition, the rotor support jig according to the present disclosure comprises the rotor hanging device and a rotor support base that supports the rotor hung by the rotor hanging device from below the rotor, the rotor support base being capable of being placed on an installation surface and comprising a flat base portion, a pair of first support portions that extend vertically from the base portion and support the rotor body from below, and a pair of second support portions that extend vertically from the base portion and support the support ring from below, and at least one of the first support portions and the second support portions is adjustable in height in the vertical direction.

[0009] In addition, the rotor accommodating unit according to the present disclosure comprises the rotor support jig and a container that is detachable from the base and can cover the rotor supported on the rotor support base, and the container, together with the base, forms an enclosed space inside which the rotor can be accommodated.

[0010] The rotor suspending tool, rotor support jig, and rotor accommodating unit of the present disclosure can accommodate changes in the axial length of the rotor.

[0011] FIG. 1 is a cross-sectional view showing a schematic configuration of a rotary machine according to the present embodiment. FIG. 2 is a cross-sectional view showing the configuration of the rotor support jig according to the present embodiment. FIG. 3 is a cross-sectional view showing the configuration of the rotor support jig. FIG. 4 is a perspective view showing a rotor lifting tool according to the present embodiment. FIG. 5 is a perspective view showing the configuration around the beam according to the present embodiment. FIG. 6 is an enlarged view of a main part showing a rotor moving connection part according to the present embodiment. FIG. 7 is an enlarged view of a main part showing a ring moving connection part according to the present embodiment. FIG. 8 is an enlarged view of a main part showing an intermediate rotor moving connection part according to the present embodiment. FIG. 9 is a perspective view showing a rotor support base according to the present embodiment. FIG. 10 is a perspective view showing a rotor supported by the rotor support base according to the present embodiment in a vertically placed state. FIG. 11 is a perspective view showing the rotor storage unit when storing the rotor according to the present embodiment.

[0012] Hereinafter, with reference to the accompanying drawings, embodiments for implementing the rotor lifting tool 110, the rotor support jig 100, and the rotor housing unit 500 according to the present disclosure will be described. However, the present disclosure is not limited to only these embodiments.

[0013] Hereinafter, a rotor hoisting tool 110, a rotor support jig 100, and a rotor housing unit 500 according to this embodiment will be described with reference to FIGS.

[0014] (Configuration of Rotating Machine) First, a rotating machine 1 including a rotor 2 that uses a rotor hoisting tool 110, a rotor support jig 100, and a rotor housing unit 500 according to this embodiment will be described. As shown in Fig. 1 , the rotating machine 1 mainly includes a rotor 2, a casing 4, a bearing unit 5, and a seal unit 7. In this embodiment, the rotating machine 1 is, for example, a multi-stage centrifugal compressor.

[0015] (Configuration of the Rotor) The rotor 2 is rotatable about an axis Ar within the casing 4. The rotor 2 includes a rotor body 21 and an impeller 22. The rotor body 21 extends in an axial direction Da about the axis Ar. The rotor body 21 is supported by a bearing 5 so as to be rotatable about the axis Ar.

[0016] In the following, the direction in which the axis Ar extends is referred to as the axial direction Da. The direction perpendicular to the axial direction Da is referred to as the vertical direction Dv. In other words, the plane perpendicular to the vertical direction Dv is the horizontal plane. The axial direction Da of the rotor body 21 runs along the horizontal plane. The direction parallel to the axial direction Da on the horizontal plane is the horizontal direction Dh. The radial direction based on the axis Ar is simply referred to as the radial direction Dr. Of the radial direction Dr, the direction perpendicular to the vertical direction Dv and the horizontal direction Dh is referred to as the width direction Dw. Furthermore, the direction around the rotor 2 centered on the axis Ar is referred to as the circumferential direction Dc.

[0017] A plurality of impellers 22 are arranged at intervals in the axial direction Da. Each impeller 22 is fixed to the rotor body 21. Each impeller 22 is rotatable around the axis Ar integrally with the rotor body 21. In the present embodiment, for example, a total of six impellers 22 are provided. These impellers 22 are arranged side by side, passing through the central portion 21c of the rotor body 21 in the axial direction Da, from the side close to the first end 21a of the rotor body 21 (first end 21a side) to the side close to the second end 21b of the rotor body 21 (second end 21b side). Three impellers 22 are arranged between the first end 21a and the second end 21b, with the central portion 21c of the rotor body 21 sandwiched between them.

[0018] In this embodiment, a coupling member 81 is attached to the first end 21 a of the rotor body 21. The coupling member 81 is detachably connected to an external shaft 900 that is provided outside the casing 4 and is driven to rotate about the axis Ar by another rotating machine (not shown).

[0019] The number of impellers 22 provided on the rotor body 21 and the orientation of the impellers 22 are not limited to those exemplified above, and can be changed as appropriate.

[0020] (Configuration of Casing) The casing 4 has a cylindrical shape extending in the axial direction Da with the axis Ar as its center. The casing 4 is formed with an inlet port 47 for introducing the working fluid into the casing 4 and an outlet port 48 for discharging the working fluid from the casing 4 to the outside. The casing 4 accommodates the rotor 2 together with the diaphragm 6. The casing 4 has an upper half casing 41 above and a lower half casing 42 below, with respect to the axis Ar of the rotor 2.

[0021] The upper half casing 41 extends in the circumferential direction Dc. A cross section of the upper half casing 41 perpendicular to the axis Ar has a semicircular ring shape centered on the axis Ar. The upper half casing 41 opens downward in the vertical direction Dv so as to accommodate the rotor 2 and the upper half diaphragm 61. The upper half casing 41 has dividing surfaces (upper half casing dividing surfaces) at both ends in the circumferential direction Dc. The dividing surfaces of the upper half casing 41 are horizontal surfaces facing downward in the vertical direction Dv.

[0022] The lower half casing 42 extends in the circumferential direction Dc. A cross section of the lower half casing 42 perpendicular to the axis Ar has a semicircular ring shape centered on the axis Ar. The inner diameter of the lower half casing 42 is the same as the inner diameter of the upper half casing 41. The lower half casing 42 opens upward in the vertical direction Dv so as to accommodate the rotor 2 and the lower half diaphragm 62. The lower half casing 42 has dividing surfaces (lower half casing dividing surfaces) at both ends in the circumferential direction Dc. The dividing surfaces of the lower half casing 42 are horizontal surfaces facing upward in the vertical direction Dv. The upper half casing 41 is placed above the lower half casing 42 in the vertical direction Dv. The upper half casing 41 and the lower half casing 42 are fixed together with fastening members such as bolts (not shown) in a state in which the dividing surfaces are in contact with each other, thereby forming the casing 4.

[0023] (Configuration of the diaphragm) The diaphragm 6 is disposed on the outer side of the rotor body 21 in the radial direction Dr. A plurality of diaphragms 6 are arranged in a row in the axial direction Da to correspond to each impeller 22. The diaphragm 6 is annular about the axis Ar. The annular diaphragm 6 has an upper half diaphragm 61 above the axis Ar of the rotor 2 in the vertical direction Dv, and a lower half diaphragm 62 below the axis Ar of the rotor 2. The upper half diaphragm 61 is fixed to the upper half casing 41 while being housed inside the upper half casing 41. The lower half diaphragm 62 is fixed to the lower half casing 42 while being housed inside the lower half casing 42.

[0024] (Configuration of Bearing Portion) The bearing portion 5 rotatably supports the rotor body 21 around the axis Ar. The bearing portion 5 is disposed inside the casing 4. The bearing portion 5 has a first bearing portion 51 and a second bearing portion 52.

[0025] The first bearing portion 51 supports the rotor body 21 with respect to the multiple impellers 22 at a position close to the first end 21a in the axial direction Da. The first bearing portion 51 has a structure that can be separated in the vertical direction Dv. The first bearing portion 51 has a journal bearing 53A. The journal bearing 53A receives a load acting on the rotor body 21 in the radial direction Dr.

[0026] The second bearing portion 52 supports the rotor body 21 at a position near the second end 21b in the axial direction Da relative to the multiple impellers 22. The second bearing portion 52 has a structure that can be separated in the vertical direction Dv. The second bearing portion 52 has a journal bearing 53B and a thrust bearing 54. The journal bearing 53B receives a load acting on the rotor body 21 in the radial direction Dr.

[0027] The thrust bearing 54 receives a load in the axial direction Da acting on the rotor body 21 via a thrust disk 54b (described later). The thrust bearing 54 is disposed on the second end 21b side in the axial direction Da (at a position away from the central portion 21c of the rotor body 21) relative to the journal bearing 53B.

[0028] A thrust disk 54b is disposed on the rotor body 21 at a position corresponding to the position of the thrust bearing 54 in the axial direction Da. The thrust disk 54b protrudes outward from the rotor body 21 in the radial direction Dr. Specifically, the thrust disk 54b has an annular shape. The thrust disk 54b is detachably mounted on the outer peripheral surface of the rotor body 21.

[0029] The thrust bearing 54 includes bearing pads 54a arranged on both sides of the thrust disk 54b in the axial direction Da. The thrust bearing 54 restrains the movement of the thrust disk 54b in the axial direction Da by the bearing pads 54a.

[0030] (Configuration of Seal Section) The seal section 7 seals the gap between the rotor 2 and the casing 4. The seal section 7 prevents the working fluid from leaking out of the casing 4 through the gap between the rotor 2 and the casing 4 and prevents foreign matter from entering the casing 4 from the outside. The seal sections 7 are arranged at intervals in the axial direction Da to sandwich the multiple impellers 22. The seal section 7 includes a first seal section 7A arranged near the first end 21a and a second seal section 7B arranged near the second end 21b. The first seal section 7A is arranged near the central portion 21c of the rotor body 21 in the axial direction Da relative to the first bearing section 51. The second seal section 7B is arranged near the central portion 21c of the rotor body 21 in the axial direction Da relative to the first bearing section 51.

[0031] The first seal portion 7A and the second seal portion 7B each include a support ring 71 and a seal member 72. That is, the rotary machine 1 includes a pair of support rings 71 and a pair of seal members 72.

[0032] The support ring 71 extends in the circumferential direction Dc. A circular through-hole is formed in the central portion 21c of the support ring 71 when viewed in the axial direction Da. In other words, the support ring 71 has an annular shape. The outer peripheral surface of the support ring 71 contacts the inner peripheral surface of the upper half casing 41 and the inner peripheral surface of the lower half casing 42. The support ring 71 is a seal holder that covers the seal member 72.

[0033] The seal member 72 is disposed on the inside of the support ring 71 in the radial direction Dr. The seal member 72 is detachably fixed to the inner circumferential surface of the through hole of the support ring 71. The seal member 72 is provided between the inner circumferential surface of the support ring 71 and the outer circumferential surface of the rotor body 21. The seal member 72 is fixed to the support ring 71 with a clearance provided between the seal member 72 and the outer circumferential surface of the rotor body 21.

[0034] In the embodiment, the seal member 72 is, for example, a dry gas seal. The dry gas seal includes a rotating ring (not shown) and a stationary ring (not shown). The rotating ring is integrally provided on the outer periphery of the rotor body 21. The stationary ring is fixed to the inner periphery of the support ring 71. The stationary ring is provided to face the rotating ring in the axial direction Da of the rotor body 21. The stationary ring is pressed toward the rotating ring by a coil spring or the like. As a result, the stationary ring and the rotating ring abut against each other when the rotary machine 1 is stopped. When the rotary machine 1 operates and the rotor body 21 rotates, a seal gas is introduced between the rotating ring and the stationary ring. The pressure of the seal gas presses the stationary ring in the axial direction Da against the biasing force of the coil spring. As a result, a small gap is formed between the rotating ring and the stationary ring, allowing them to rotate without contacting each other. The small gap between the rotating ring and the stationary ring prevents leakage of the working fluid from the casing 4 to the outside of the casing 4.

[0035] The seal member 72 may further include a labyrinth seal.

[0036] (Configuration of Rotor Support Jig) A rotor support jig 100 shown below is used to support the rotor 2 removed from the rotating machine 1 as described above. As shown in Figures 2 to 10 , the rotor support jig 100 includes a rotor lifting tool 110 and a rotor support base 150.

[0037] (Configuration of Rotor Lifting Tool) Rotor hoisting tool 110 is capable of holding rotor 2 in a suspended state. Rotor hoisting tool 110 includes beam 111, ring support part 113, rotor support part 115, up / down position adjustment part 117, rotor movement connection part 120, ring movement connection part 130, intermediate rotor support part 140, and intermediate rotor movement connection part 145.

[0038] 2 to 4, the beam 111 extends linearly along the horizontal direction Dh. When the rotor hoisting device 110 is in use, the beam 111 is disposed so as to extend in the axial direction Da above the rotor body 21 in the vertical direction Dv and parallel to the rotor body 21. As shown in FIG. 6, the beam 111 in this embodiment is, for example, an H-shaped steel beam having an H-shaped cross section extending in the axial direction Da.

[0039] As shown in FIGS. 2 to 4 , the ring support portions 113 are capable of supporting the support ring 71. A pair of ring support portions 113 are arranged on the beam 111 with a gap in the axial direction Da. Each ring support portion 113 extends downward from the beam 111 in the vertical direction Dv. The ring support portions 113 are connected to the beam 111 via ring movement connectors 130. In the axial direction Da, the ring support portions 113 are arranged on the beam 111 at positions closer to the ends of the beam 111 than the rotor support portions 115 and the intermediate rotor support portions 140. The lower ends of the ring support portions 113 in the vertical direction Dv are formed in a shape that covers the upper half of the support ring 71. The surface of the lower ends of the ring support portions 113 facing downward in the vertical direction Dv is arranged along the outer peripheral surface of the upper half of the support ring 71. The ring support portion 113 can be detachably fixed to the upper half of the support ring 71 by a fixing member such as a bolt (not shown).

[0040] The rotor support portions 115 are capable of supporting the rotor body 21. A pair of rotor support portions 115 are arranged on the beam 111 with a gap in the axial direction Da. Each rotor support portion 115 is connected to the beam 111 via a vertical position adjustment portion 117 and a rotor movement connection portion 120. Each rotor support portion 115 is arranged at a different position from the ring support portion 113 in the axial direction Da. The rotor support portion 115 is arranged at a position closer to the end of the beam 111 than the ring support portion 113. The rotor support portion 115 is capable of supporting the rotor body 21 from below in the vertical direction Dv. The rotor support portion 115 is capable of supporting the rotor body 21 at a position in the axial direction Da where the bearing portion 5 is arranged. The rotor support portion 115 includes a support portion main body 116 extending in the circumferential direction Dc. The support portion main body 116 is annular when viewed from the axial direction Da and can be divided into upper and lower two portions. The support body 116 is detachable from the rotor body 21 with the rotor body 21 inserted therethrough.

[0041] The vertical position adjustment unit 117 is capable of adjusting the position of the rotor support unit 115 in the vertical direction Dv relative to the beam 111. The vertical position adjustment unit 117 extends downward in the vertical direction Dv from the rotor movement connection unit 120. The vertical position adjustment unit 117 connects the rotor movement connection unit 120 and the rotor support unit 115. In this embodiment, the vertical position adjustment unit 117 is, for example, a turnbuckle.

[0042] The rotor movement connection part 120 supports the rotor support part 115 relative to the beam 111 so that the rotor support part 115 can move in the axial direction Da relative to the beam 111. As shown in FIGS. 5 and 6 , the rotor movement connection part 120, with the beam 111 housed therein, is movable in parallel with the beam 111 in the axial direction Da. The rotor movement connection part 120 is fixed to the beam 111 with detachable bolts, thereby immobilizing the rotor movement connection part 120 relative to the beam 111. The rotor movement connection part 120 becomes movable relative to the beam 111 by loosening the bolts. The rotor support part 115 is detachably fixed to the lower surface of the rotor movement connection part 120 in the vertical direction Dv via a vertical position adjustment part 117. The vertical position adjustment part 117 extends downward in the vertical direction Dv from the lower surface of the rotor movement connection part 120. In other words, the vertical position adjustment part 117 and the rotor support part 115 also move as the rotor movement connection part 120 moves. When lifting the rotor 2, the rotor moving connection part 120 positions the rotor support part 115 at the position where the bearing part 5 is positioned in the axial direction Da.

[0043] As shown in FIG. 3 , the rotor moving connection part 120 is configured to allow a coupling device 800 of a lifting machine to be attached. Specifically, an attachment part 121 is formed on the upper surface of the rotor moving connection part 120 in the vertical direction Dv. The attachment part 121 has a hole formed therein to allow attachment of a coupling device 800, such as a wire or hook, of a lifting machine such as a crane. The rotor moving connection part 120 is configured to be movable in the vertical direction Dv together with the beam 111 with the coupling device 800 attached to the attachment part 121. In other words, the rotor lifting device 110 is configured to be movable in the vertical direction Dv by a lifting machine having a wire or hook attached to the attachment part 121. The attachment part 121 is disposed at the same axial position Da as the position at which the rotor support part 115 is fixed to the rotor moving connection part 120.

[0044] As shown in FIGS. 2 to 4 , the ring moving connection part 130 supports the ring support part 113 relative to the beam 111 so as to be movable in the axial direction Da, independently of the rotor moving connection part 120. As shown in FIGS. 5 and 7 , the ring moving connection part 130 is movable in parallel with the beam 111 in the axial direction Da with the beam 111 housed therein. Specifically, the ring moving connection part 130 is movable in parallel with the axial direction Da relative to the lower flange of the beam 111 on the H side. The ring moving connection part 130 is fixed to the beam 111 with detachable bolts, thereby making it immovable relative to the beam 111. The ring moving connection part 130 becomes movable relative to the beam 111 by loosening the bolts. The ring support part 113 is detachably fixed to the underside of the ring moving connection part 130 in the vertical direction Dv. The ring support part 113 extends downward in the vertical direction Dv from the underside of the ring moving connection part 130. That is, the ring support part 113 moves together with the movement of the ring moving connection part. When the rotor 2 is lifted, the ring moving connection part 130 positions the ring support part 113 at the position where the support ring 71 is positioned in the axial direction Da.

[0045] As shown in FIGS. 2 to 4 , the intermediate rotor support portion 140 is detachably attached to the rotor 2 at a position separate from the rotor support portion 115 and is capable of supporting the rotor body 21. The intermediate rotor support portion 140 is disposed at a position close to the center portion 21c of the rotor body 21 in the axial direction Da relative to the pair of ring support portions 113 and the pair of rotor support portions 115. Only one intermediate rotor support portion 140 is disposed relative to the beam 111. The intermediate rotor support portion 140 is connected to the beam 111 via an intermediate rotor movement connection portion 145. The intermediate rotor support portion 140 is capable of supporting the impeller 22 fixed to the rotor body 21 in a state in which it is sandwiched in the axial direction Da. The intermediate rotor support portion 140 is capable of fixing one of the multiple impellers 22 in a state in which it is sandwiched in the axial direction Da. The intermediate rotor support portion 140 supports the impeller 22 fixed to the rotor body 21, thereby supporting the rotor body 21 in the vertical direction Dv. The position of the intermediate rotor support portion 140 in the vertical direction Dv is adjustable relative to the beam 111. The intermediate rotor support portion 140 has a first impeller fixing portion 141 located on the first end 21a side of the impeller 22 in the axial direction Da, and a second impeller fixing portion 142 located on the second end 21b side of the impeller 22 in the axial direction Da. The first impeller fixing portion 141 is detachably fixed to a surface of the impeller 22 facing the first end 21a side in the axial direction Da. The first impeller fixing portion 141 is detachably fixed to a disk (not shown) of the impeller 22, for example, by a bolt. The second impeller fixing portion 142 is detachably fixed to a surface of the impeller 22 facing the second end 21b side in the axial direction Da. The second impeller fixing portion 142 is detachably fixed to a cover (not shown) of the impeller 22 by, for example, a bolt.

[0046] The intermediate rotor movement connection part 145 supports the intermediate rotor support part 140 relative to the beam 111 so as to be movable in the axial direction Da, independently of the rotor movement connection part 120 and the ring movement connection part 130. As shown in FIGS. 5 and 8 , the intermediate rotor movement connection part 145 is movable in parallel with the beam 111 in the axial direction Da with the beam 111 housed therein. Specifically, like the ring movement connection part 130, the intermediate rotor movement connection part 145 is movable in parallel with the axial direction Da relative to the lower flange of the beam 111 on the H side. The intermediate rotor movement connection part 145 is fixed to the beam 111 with detachable bolts, thereby making it immovable relative to the beam 111. The intermediate rotor movement connection part 145 becomes movable relative to the beam 111 by loosening the bolts. The intermediate rotor support part 140 is detachably fixed to the lower surface of the intermediate rotor movement connection part 145 in the vertical direction Dv. The intermediate rotor support part 140 extends downward in the vertical direction Dv from the underside of the intermediate rotor movement connection part 145. That is, the intermediate rotor support part 140 also moves as the intermediate rotor movement connection part 145 moves. When lifting the rotor 2, the intermediate rotor movement connection part 145 positions the intermediate rotor support part 140 at a position in the axial direction Da where one of the impellers 22 is positioned. The intermediate rotor movement connection part 145 is positioned independently and separately from the first impeller fixing part 141 and the second impeller fixing part 142.

[0047] 2, 3, and 9, the rotor support base 150 is capable of supporting the rotor 2 and the rotor hoisting device 110 that supports the rotor 2. The rotor support base 150 includes a base portion 151, a first support portion 152, a second support portion 153, a rotor fixing member 154, and a base support portion 155.

[0048] The base portion 151 is formed in the shape of a rectangular flat plate when viewed in the vertical direction Dv. The base portion 151 can be placed on an installation surface FF. The base portion 151 is disposed with its longitudinal direction aligned with the axial direction Da of the rotor 2. The base portion 151 is preferably sized so that it can be mounted on a transport vehicle such as a truck or trailer.

[0049] The first support portions 152 support the rotor body 21 from below. A pair of first support portions 152 is arranged on the base portion 151. The pair of first support portions 152 is arranged with a gap in the longitudinal direction (axial direction Da) of the base portion 151. Each first support portion 152 is arranged near the center portion 21c in the short-side direction (width direction Dw) of the base portion 151. Note that each first support portion 152 may be arranged at a position away from the center portion 21c in the short-side direction of the base portion 151. Each first support portion 152 extends perpendicularly upward in the vertical direction Dv from the upper surface of the base portion 151. A rotor support surface 1520 on which the rotor body 21 can be placed is formed on the upper surface of each first support portion 152. The rotor support surface 1520 is formed in a downwardly recessed shape so as to fit along the outer peripheral surface of the rotor body 21. The height of each first support portion 152 is adjustable in the vertical direction Dv. Furthermore, the position of each first support portion 152 in the width direction Dw relative to the base portion 151 is adjustable.

[0050] The second support portions 153 support the support ring 71 from below. A pair of second support portions 153 is arranged on the base portion 151. The pair of second support portions 153 is arranged with a gap in the longitudinal direction (axial direction Da) of the base portion 151. Each second support portion 153 is arranged near the center portion 21c in the lateral direction (width direction Dw) of the base portion 151. Note that each second support portion 153 may be arranged at a position away from the center portion 21c in the lateral direction of the base portion 151. Each second support portion 153 extends perpendicularly upward in the vertical direction Dv from the upper surface of the base portion 151. The upper surface of each second support portion 153 is formed with a ring support surface 1530 on which the support ring 71 can be placed and a ring fixing surface 1535 on which the ring support portion 113 can be placed and fixed. The ring support surface 1530 is formed in an arc shape recessed downward so as to fit along the outer circumferential surface of the support ring 71. The ring fixing surface 1535 is formed outward in the width direction Dw from the ring support surface 1530 when viewed in the vertical direction Dv. The ring fixing surface 1535 is capable of fixing the ring support portion 113 in a state in which it supports only the ring support portion 113 from below without coming into contact with the support ring 71. The height of each second support portion 153 is adjustable in the vertical direction Dv.

[0051] The rotor 2 is supported from below by the first support portions 152 and the second support portions 153. Specifically, the rotor body 21 is supported by the pair of first support portions 152 at two locations spaced apart in the axial direction Da. Furthermore, the pair of support rings 71 and ring support portions 113 are supported by the pair of second support portions 153. In this way, the rotor 2 is held by the first support portions 152 and the second support portions 153 in a state where the relative positions of the rotor body 21 and the support ring 71 in the radial direction Dr are fixed.

[0052] The second support portion 153 is disposed in a position closer to the outer peripheral edge of the base portion 151 in the longitudinal direction (axial direction Da) of the base portion 151 than the first support portion 152. In other words, the first support portion 152 is disposed in a position closer to the central portion 21 c of the rotor body 21 in the axial direction Da than the second support portion 153. In other words, the first support portion 152 supports the rotor body 21 at a position closer to the central portion 21 c of the rotor body 21 than the support ring 71.

[0053] 9 , the rotor fixing member 154 can be fixed to the first end 21 a in the axial direction Da of the rotor main body 21. The rotor fixing member 154 extends perpendicularly from the base portion 151 at a first end portion of the base portion 151 in the axial direction Da (the end portion on the first end 21 a side in the axial direction Da). The rotor fixing member 154 can be attached to and detached from the base portion 151.

[0054] 2, 3, and 9, the base support portion 155 is capable of supporting the base portion 151 with respect to the installation surface F when the base portion 151 is disposed with its axial direction Da coinciding with the vertical direction Dv. That is, the rotor support base 150 is capable of supporting the rotor 2 and the rotor suspending tool 110 in two different orientations: a horizontal orientation in which the base portion 151 is in contact with the installation surface F, and a vertical orientation in which the base support portion 155 is in contact with the installation surface F as shown in FIG. 10. In the vertical orientation, the rotor 2 and the rotor support base 150 are disposed so that the first end 21a of the rotor 2 fixed to the rotor fixing member 154 is the top in the vertical direction Dv. In addition, when the rotor is disposed vertically, it is preferable that the rotor suspending tool 110 is detached from the rotor 2 on the rotor support base 150. 2, 3, and 9, the base support portion 155 is disposed at a second end portion (the end portion on the second end 21b side in the axial direction Da) opposite the first end portion of the base portion 151 in the axial direction Da. In other words, the base support portion 155 is disposed on the opposite side in the axial direction Da from the rotor fixing member 154. The base support portion 155 extends perpendicularly from the base portion 151. The base support portion 155 extends from the base portion 151 so as to form a triangular outer shape when viewed in the width direction Dw.

[0055] (Configuration of Rotor Housing Unit) The rotor housing unit 500 is used for transportation and storage with the rotor 2 housed therein together with the rotor hoisting device 110. The rotor housing unit 500 includes the rotor hoisting device 110, a rotor support base 150, and a container 510.

[0056] 11 , the container 510 is capable of covering the rotor 2 supported on the rotor support base 150. The container 510 is capable of covering the rotor 2 from which the rotor hoisting device 110 has been removed on the rotor support base 150. The container 510 is detachable from the base 151. The container 510 is capable of accommodating the rotor 2 together with the base 151. In addition, a discharge valve 511, a supply valve 512, and a pressure gauge 513 are arranged in the container 510.

[0057] The exhaust valve 511 exhausts gas from the inside of the container 510. The supply valve 512 supplies gas (e.g., nitrogen) suitable for storing the rotor 2 inside the container 510. The pressure gauge 513 measures and displays the pressure inside the container 510.

[0058] (Rotor Lifting Method) Next, a description will be given of a method for lifting the rotor 2 from the rotary machine 1. The method for lifting the rotor 2 is part of a method for disassembling or assembling the rotary machine 1, and part of a method for moving the rotor 2.

[0059] 2 and 3, when lifting the rotor 2, the rotor moving connection part 120, the ring moving connection part 130, and the intermediate rotor moving connection part 145 are moved in the axial direction Da relative to the beam 111 so as to match the shape of the rotor 2 to be lifted. Specifically, the rotor moving connection part 120, the ring moving connection part 130, and the intermediate rotor moving connection part 145 are made movable relative to the beam 111 by loosening the bolts (see FIGS. 6 to 8).

[0060] Thereafter, the intermediate rotor support part 140 is moved in the axial direction Da relative to the beam 111 so as to coincide with the position in the axial direction Da of the impeller 22 to be fixed. As a result, the intermediate rotor support part 140 is positioned in the axial direction Da at the position where the impeller 22 to be fixed is positioned. After the movement, the bolts of the intermediate rotor moving connection part 145 are tightened to make it immovable relative to the beam 111.

[0061] Furthermore, the rotor movement connection part 120 is moved in the axial direction Da relative to the beam 111 so as to coincide with the position in the axial direction Da at which the bearing part 5 is disposed on the rotor 2. As a result, the rotor support part 115 is disposed at the position in the axial direction Da at which the bearing part 5 is disposed. After the movement, the rotor movement connection part 120 is immobilized relative to the beam 111 by tightening the bolts.

[0062] Furthermore, the ring moving connection part 130 is moved in the axial direction Da relative to the beam 111 so as to coincide with the position in the axial direction Da at which the support ring 71 is disposed on the rotor 2. As a result, the ring support part 113 is disposed at the position in the axial direction Da at which the support ring 71 is disposed. After the ring moving connection part 130 is moved, the bolts are tightened to make it immovable relative to the beam 111. As a result, the positions in the axial direction Da of the intermediate rotor moving connection part 145 and the intermediate rotor support part 140, the rotor moving connection part 120 and the rotor support part 115, and the ring moving connection part 130 and the ring support part 113 relative to the beam 111 are fixed.

[0063] Second, the rotor hoisting device 110 is positioned above the rotor 2. Specifically, first, a coupling 800 of a lifting machine such as a crane is attached to the mounting portion of the rotor moving connection part 120. Next, the lifting machine is used to lift the rotor moving connection part 120. As a result, the rotor moving connection part 120 and other parts of the rotor hoisting device 110 are also lifted. After that, the rotor hoisting device 110 is positioned above the rotor 2. The rotor hoisting device 110 is positioned above the rotor 2 so that the extension direction of the beam 111 is parallel to the axial direction Da of the rotor 2. Furthermore, the rotor 2 to be lifted may be a rotor 2 in which the upper half casing 41 has been removed and is housed in the lower half casing 42, or a rotor 2 that has already been removed from the casing 4 and stored in another location.

[0064] Third, the intermediate rotor support 140 is fixed to the impeller 22. Specifically, the lifted rotor moving connection part 120 is lowered by heavy machinery. As a result, in the rotor lifting tool 110, the intermediate rotor support 140 is positioned so as to overlap with the target impeller 22 among the multiple impellers 22 in the axial direction Da. After that, the position of the intermediate rotor support 140 in the vertical direction Dv is adjusted to match the impeller 22. In this state, the first impeller fixing part 141 of the intermediate rotor support 140 is fixed to the surface of the impeller 22 facing the first end 21 a in the axial direction Da, for example, by a bolt (not shown). Furthermore, the second impeller fixing part 142 of the intermediate rotor support 140 is fixed to the surface of the impeller 22 facing the second end 21 b in the axial direction Da, for example, by a bolt (not shown). As a result, the intermediate rotor support portion 140 supports one of the impellers 22 fixed to the rotor body 21 in a state in which it is sandwiched in the axial direction Da.

[0065] Fourth, the ring supports 113 are fixed to the support ring 71. Specifically, in the rotor lifting device 110, a pair of ring supports 113 are arranged along the support ring 71. Next, each ring support 113 is fixed to the support ring 71 by, for example, bolts.

[0066] Fifth, the rotor support parts 115 are fixed to the rotor body 21. Specifically, the rotor body 21 is sandwiched so as to be surrounded by the support part bodies 116. In this way, the pair of rotor support parts 115 are attached to the rotor body 21.

[0067] Sixth, the position of the rotor support parts 115 in the vertical direction Dv is adjusted to match the rotor body 21. Specifically, the vertical position adjustment parts 117 adjust the positions of the pair of support body parts 116 in the vertical direction Dv to match the rotor body 21. To achieve this, the turnbuckles serving as the vertical position adjustment parts 117 move the support body parts 116 in the vertical direction Dv. This adjusts the position of the support body parts 116 in the vertical direction Dv so that the position of the center line (axis Ar) of the rotor body 21 supported by the rotor support parts 115 in the vertical direction Dv is aligned with the position of the center line of the seal member 72 in the vertical direction Dv. As a result, the rotor 2 is supported in a state where it cannot move relative to the rotor suspending device 110, with the center lines of the rotor body 21 and the seal member 72 aligned. As a result, the rotor body 21 is supported from below by the pair of rotor support parts 115 in an aligned state.

[0068] In this manner, the rotor hoisting tool 110 is attached to the rotor 2, and the rotor 2 is hoisted. The rotor 2 hoisted by the rotor hoisting tool 110 is then moved above the rotor support base 150, which has been placed in advance. The rotor 2 is then supported by the rotor support base 150. Specifically, the rotor moving connection part 120 is lowered by a lifting machine. The rotor hoisting tool 110 is then lowered so that the ring support parts 113 are placed on the ring fixing surfaces 1535 of the second support parts 153. Next, each ring support part 113 and the second support part 153 are connected with bolts (not shown). As a result, the rotor hoisting tool 110, with the rotor 2 hoisted, is fixed to the rotor support base 150. In other words, the rotor 2 hoisted by the rotor hoisting tool 110 is supported in a state where it cannot move relative to the rotor support base 150.

[0069] In this state, the rotor 2 and the rotor hoisting device 110 can be loaded onto a transport vehicle together with the rotor support base 150 and transported to a factory or the like different from the location where the rotating machine 1 is installed. In this case, the rotor 2 and the rotor hoisting device 110 can be placed upright. Also, a container 510 can be attached for storage.

[0070] (Operation and Effect) In the rotor hoisting tool 110 configured as described above, the position of the rotor support part 115 in the axial direction Da relative to the beam 111 is movable by the rotor moving connection part 120. In addition, the position of the ring support part 113 in the axial direction Da relative to the beam 111 is movable by the ring moving connection part 130. Therefore, a single rotor hoisting tool 110 can support multiple types of rotors 2 with different lengths in the axial direction Da. Therefore, a single rotor hoisting tool 110 can accommodate changes in the length of the rotor 2 in the axial direction Da. Furthermore, the rotor hoisting tool 110 can be standardized, allowing different types of rotors 2 to be hoisted while suppressing increases in costs and complication of management.

[0071] The rotor moving connection part 120 also has an attachment part 121 to which a connecting device 800, such as a wire or hook of a lifting machine, can be attached. Therefore, the attachment position of the connecting device 800 in the axial direction Da can be adjusted by the rotor moving connection part 120. The rotor lifting device 110 is moved by a lifting machine with the connecting device 800 attached to the rotor moving connection part 120. The rotor support part 115 is also fixed to the rotor moving connection part 120. Therefore, when the rotor 2 is lifted, a force is generated in the rotor moving connection part 120 at the attachment part 121 in the upward direction in the vertical direction Dv, and a force is generated in the downward direction in the vertical direction Dv at the fixed position of the rotor support part 115. Therefore, a moment opposite to the moment generated in the beam 111 from the attachment part 121 due to lifting is generated in the beam 111 from the fixed position of the rotor support part 115. Therefore, the moment generated when lifting is reduced, and the rotor 2, which is a heavy object, can be lifted without increasing the strength of the beam 111.

[0072] Furthermore, the rotor body 21 is supported by the intermediate rotor support 140, separate from the ring support 113 that supports the support ring 71 and the rotor support 115 that supports the rotor body 21. Specifically, the intermediate rotor support 140 supports the impeller 22 at a position near the center 21c of the rotor body 21 in the axial direction Da relative to the ring support 113 and the rotor support 115. In other words, the rotor body 21 is supported at a position sandwiched in the axial direction Da between the pair of ring support 113 and the pair of rotor support 115. Therefore, even if the rotor 2 is long in the axial direction Da, deflection of the rotor body 21 can be suppressed and the rotor body 21 can be stably supported. Furthermore, the position of the intermediate rotor support 140 in the axial direction Da relative to the beam 111 is movable by the intermediate rotor moving connection 145. Therefore, a single rotor hoisting fixture 110 can support multiple types of rotors 2 with different impeller 22 arrangements.

[0073] Furthermore, the intermediate rotor support portion 140 can support the impeller 22 to be fixed in a state in which the impeller 22 is sandwiched in the axial direction Da by the first impeller fixing portion 141 and the second impeller fixing portion 142. Therefore, the intermediate rotor support portion 140 can flexibly accommodate the shape of the impeller 22 to be fixed, and can support the impeller 22 in a stable state.

[0074] Furthermore, a pair of ring supports 113 extending downward relative to the beam 111 support the support ring 71. Furthermore, intermediate rotor supports 140 extending downward relative to the beam 111 support the vicinity of the center of the rotor body 21 in the axial direction Da via the impeller 22. Furthermore, the position of the rotor supports 115 in the vertical direction Dv relative to the beam 111 can be adjusted by the up / down position adjustment unit 117. Therefore, with the ring supports 113 supporting the support ring 71 and the intermediate rotor supports 140 supporting the vicinity of the center of the rotor body 21, the position of the rotor supports 115 in the vertical direction Dv can be adjusted to match the rotor body 21. As a result, the rotor hoisting device 110 can support the rotor 2 with the ring supports 113 and the rotor supports 115 aligned with the support ring 71 and the rotor body 21. By using such a rotor lifting tool 110, it is possible to lift the rotor 2 with not only the rotor body 21 but also the support ring 71 and the seal member 72 attached to the rotor body 21. This reduces the effort required for removing and replacing the rotor 2, making it possible to improve the efficiency of maintenance work and the availability of the rotary machine 1.

[0075] Furthermore, since the support ring 71 continues to be supported by the ring support portion 113 of the rotor hanger 110, displacement of the support ring 71 relative to the rotor body 21 can be suppressed.

[0076] Furthermore, rotor support base 150 supports rotor 2 suspended from rotor hoisting tool 110. Rotor body 21 is supported from below by first support portion 152. Support ring 71 is supported from below by second support portion 153. In this way, rotor support base 150 can integrally support rotor 2 and rotor hoisting tool 110.

[0077] Furthermore, in the rotor support base 150, the first end 21 a of the rotor 2 is fixed by the rotor fixing member 154, while the base support portion 155, located on the opposite side of the rotor fixing member 154 in the axial direction Da, supports the base portion 151 relative to the installation surface F. This allows the rotor support jig 100 supporting the rotor 2 to be placed vertically. When the rotor 2 is placed vertically for storage, if both ends of the rotor 2 in the axial direction Da are fixed to the rotor support base 150, deformation may occur at the second end 21 b, which is located below in the vertical direction Dv, due to the rotor 2's own weight. However, by fixing only the first end 21 a of the rotor 2 with the rotor fixing member 154 as in the present embodiment, it is not necessary to adjust the second end 21 b of the rotor 2 so that it can move relative to the rotor support base 150 when placing the rotor 2 vertically. This eliminates the need for man-hours when storing the rotor 2.

[0078] The rotor 2 is accommodated in a container 510 that is detachable from the base 151. Therefore, the rotor 2 supported by the rotor support base 150 is accommodated in a sealed state in a space surrounded by the container 510 and the base 151. The container 510 is also provided with a discharge valve 511, a supply valve 512, and a pressure gauge 513. Therefore, while checking the pressure state inside the container 510 with the pressure gauge 513, the air inside the container 510 can be removed with the discharge valve 511 and replaced with a gas suitable for storing the rotor 2, which is supplied from the supply valve 512. As a result, the rotor 2 supported by the rotor support base 150 can be stored in the container 510 with stable quality for a long period of time.

[0079] (Other Embodiments) Although the embodiments of the present disclosure have been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like within the scope that does not deviate from the gist of the present disclosure are also included.

[0080] The rotor moving connection part 120, the ring moving connection part 130, and the intermediate rotor moving connection part 145 are not limited to the configurations of the above embodiment as long as they are configured to be movable in the axial direction Da relative to the beam 111. Therefore, the shapes and configurations of the rotor moving connection part 120, the ring moving connection part 130, and the intermediate rotor moving connection part 145 may be changed as appropriate to match the shape of the beam 111 and the shapes of the ring support part 113, the rotor support part 115, and the intermediate rotor support part 140.

[0081] Furthermore, the intermediate rotor support portion 140 is not limited to a configuration in which it supports one impeller 22 sandwiched in the axial direction Da as in this embodiment. The intermediate rotor support portion 140 may be disposed in a position close to the center portion 21c of the rotor main body 21 as long as it can support the rotor main body 21. Therefore, for example, the intermediate rotor support portion 140 may be fixed directly to the rotor main body 21. Furthermore, even when the intermediate rotor support portion 140 is fixed to the impeller 22, it may be configured to be fixed to the impeller 22 from only one side in the axial direction Da, like one side of a cover or disk.

[0082] <Additional Notes> The rotor hoisting tool 110, the rotor support jig 100, and the rotor housing unit 500 described in the embodiment can be understood, for example, as follows.

[0083] (1) A rotor hoisting device 110 according to a first aspect is a rotor hoisting device 110 capable of suspending a rotor 2 including a rotor body 21 extending in an axial direction Da, a pair of annular support rings 71 disposed at a first end 21 a and a second end 21 b of the rotor body 21 with a gap in the axial direction Da and provided outside the rotor body 21 in a radial direction Dr, and a pair of seal members 72 disposed on an inner peripheral surface of the support ring 71 with a clearance between them and an outer peripheral surface of the rotor body 21, the rotor hoisting device 110 including a beam 111 extending parallel to the axial direction Da above the rotor body 21, and a pair of ring supports disposed at a gap in the axial direction Da and detachable from the support ring 71. The rotor support unit 111 includes a pair of support parts 113 arranged at intervals in the axial direction Da, rotor support parts 115 that are attached and detached to the rotor body 21 at different positions in the axial direction Da relative to the ring support part 113 and support the rotor body 21 from below, an up-down position adjustment part 117 that is capable of adjusting the position of the rotor support part 115 in the vertical direction Dv relative to the beam 111, a rotor moving connection part 120 that supports the rotor support part 115 relative to the beam 111 so that it can move in the axial direction Da, and a ring moving connection part 130 that supports the ring support part 113 relative to the beam 111 so that it can move in the axial direction Da independently of the rotor moving connection part 120.

[0084] With this configuration, the position of the rotor support part 115 in the axial direction Da relative to the beam 111 is movable by the rotor movement connection part 120. In addition, the position of the ring support part 113 in the axial direction Da relative to the beam 111 is movable by the ring movement connection part 130. Therefore, a single rotor hoisting fixture 110 can support multiple types of rotors 2 with different lengths in the axial direction Da. Therefore, a single rotor hoisting fixture 110 can accommodate changes in the length of the rotor 2 in the axial direction Da.

[0085] (2) The rotor lifting device 110 according to the second aspect is the rotor lifting device 110 of (1), in which the rotor moving connection part 120 is capable of being attached with a connecting device 800 of a lifting machine, and is capable of moving in the vertical direction Dv together with the beam 111 with the connecting device 800 attached.

[0086] With this configuration, the rotor moving connection part 120 can adjust the attachment position of the coupling 800 in the axial direction Da. The rotor lifting device 110 is moved by a lifting machine with the coupling 800 attached to the rotor moving connection part 120. Furthermore, when the rotor 2 is lifted, an upward force in the vertical direction Dv is generated at the attachment part 121 of the rotor moving connection part 120, and a downward force in the vertical direction Dv is generated at the fixed position of the rotor support part 115. Therefore, a moment opposite to the moment generated on the beam 111 from the attachment part 121 due to lifting is generated on the beam 111 from the fixed position of the rotor support part 115. Therefore, the moment generated during lifting is suppressed, and the rotor 2, which is a heavy object, can be lifted without increasing the strength of the beam 111.

[0087] (3) The rotor hoisting device 110 of the third aspect is the rotor hoisting device 110 of (1) or (2), and further comprises an intermediate rotor support part 140 that is positioned near the center 21c of the rotor body 21 in the axial direction Da relative to the pair of ring support parts 113 and the pair of rotor support parts 115, is detachable from the rotor 2, and supports the rotor body 21, and an intermediate rotor moving connection part 145 that supports the intermediate rotor support part 140 relative to the beam 111 so that it can move in the axial direction Da independently of the rotor moving connection part 120 and the ring moving connection part 130.

[0088] With this configuration, the intermediate rotor support 140 supports the impeller 22 at a position close to the center 21c of the rotor body 21 in the axial direction Da relative to the ring support 113 and the rotor support 115. In other words, the rotor body 21 is supported at a position sandwiched in the axial direction Da between the pair of ring support 113 and the pair of rotor support 115. Therefore, even if the rotor 2 is long in the axial direction Da, deflection of the rotor body 21 can be suppressed and the rotor 21 can be stably supported. Furthermore, the position of the intermediate rotor support 140 in the axial direction Da relative to the beam 111 is movable by the intermediate rotor moving connection 145. Therefore, a single rotor hoisting fixture 110 can support multiple types of rotors 2 with different arrangements of the impeller 22.

[0089] (4) The rotor hoisting device 110 according to the fourth aspect is the rotor hoisting device 110 of (3), in which the intermediate rotor support portion 140 is capable of supporting the impeller 22 fixed to the rotor body 21 in a clamped state from the axial direction Da.

[0090] With this configuration, the impeller 22 can be stably supported by flexibly adapting to the shape of the impeller 22 to be fixed.

[0091] (5) A rotor support jig 100 relating to a fifth aspect comprises any one of the rotor suspending devices 110 of (1) to (4) and a rotor support base 150 that supports the rotor 2 suspended from the rotor suspending device 110 from below the rotor 2, wherein the rotor support base 150 is capable of being placed on an installation surface F and comprises a flat base portion 151, a pair of first support portions 152 that extend vertically from the base portion 151 and support the rotor main body 21 from below, and a pair of second support portions 153 that extend vertically from the base portion 151 and support the support ring 71 from below, and at least one of the first support portions 152 and the second support portions 153 is height adjustable in the vertical direction Dv.

[0092] With this configuration, the rotor support base 150 can integrally support the rotor 2 and the rotor suspending tool 110 .

[0093] (6) A rotor support jig 100 according to a sixth aspect is the rotor support jig 100 of (5), wherein the rotor support base 150 further includes a rotor fixing member 154 that extends vertically from the base portion 151 at a first end of the base portion 151 in the axial direction Da and is fixable to the first end 21 a of the rotor body 21 in the axial direction Da, and a base support portion 155 that extends vertically from the base portion 151 at a second end opposite the first end of the base portion 151 in the axial direction Da and is capable of supporting the base portion 151 against the installation surface F when the base portion 151 is positioned with the axial direction Da aligned with the vertical direction Dv.

[0094] With this configuration, the rotor support jig 100 supporting the rotor 2 can be placed vertically. When placing the rotor 2 vertically for storage, if both ends of the rotor 2 in the axial direction Da are fixed to the rotor support base 150, the weight of the rotor 2 may cause deformation at the second end 21b located below in the vertical direction Dv. However, by fixing only the first end 21a of the rotor 2 with the rotor fixing member 154, it is not necessary to adjust the second end 21b of the rotor 2 so that it can move relative to the rotor support base 150 when placing the rotor 2 vertically. This eliminates the need for man-hours when storing the rotor 2.

[0095] (7) A rotor accommodating unit 500 according to a sixth aspect comprises the rotor support jig 100 of (5) or (6), and a container 510 that is detachable from the base portion 151 and capable of covering the rotor 2 supported on the rotor support base 150, and the container 510, together with the base portion 151, forms an enclosed space inside which the rotor 2 can be accommodated.

[0096] With this configuration, the rotor 2 supported by the rotor support base 150 can be stored in the container 510 with stable quality for a long period of time.

[0097] The rotor suspending tool, rotor support jig, and rotor accommodating unit of the present disclosure can accommodate changes in the axial length of the rotor.

[0098] DESCRIPTION OF SYMBOLS 1...Rotating machine 2...Rotor 21...Rotor body 21c...Central portion 21a...First end 21b...Second end 22...Impeller Ar...Axis 4...Cylinder 41...Upper half casing 42...Lower half casing 47...Suction port 48...Discharge port 5...Bearing portion 51...First bearing portion 52...Second bearing portion 53A, 53B...Journal bearing 54...Thrust bearing 54b...Thrust disk 54a...Bearing pad 6...Diaphragm 61...Upper half diaphragm 62...Lower half diaphragm 7...Seal portion 7A...First seal portion 7B...Second seal portion 71...Support ring 72...Seal member 81...Coupling member 900...External shaft Da...Axial direction Dv...Vertical direction Dr...Radial direction Dc...Circumferential direction Dw...Width direction 100...Rotor support jig DESCRIPTION OF SYMBOLS 110...Rotor lifting device 111...Beam 113...Ring support portion 115...Rotor support portion 116...Support portion main body 800...Connector 117...Up / down position adjustment portion 120...Rotor moving connection portion 121...Mounting portion 130...Ring moving connection portion 140...Intermediate rotor support portion 141...First impeller fixing portion 142...Second impeller fixing portion 145...Intermediate rotor moving connection portion 150...Rotor support base 151...Base portion 152...First support portion 1520...Rotor support surface 153...Second support portion 1530...Ring support surface 1535...Ring fixing surface 154...Rotor fixing member 155...Base support portion F...Installation surface 500...Rotor accommodating unit 510...Container 511...Discharge valve 512...Supply valve 513...Pressure gauge

Claims

1. A rotor suspending device capable of suspending a rotor comprising: a rotor body extending in an axial direction; a pair of annular support rings disposed at first and second ends of the rotor body with a gap in the axial direction and provided radially outside the rotor body; and a pair of seal members disposed on an inner peripheral surface of the support rings with a clearance between the inner peripheral surface of the rotor body and the support rings; the rotor suspending device comprising: a beam extending parallel to the axial direction above the rotor body; ring support parts disposed in a pair with a gap in the axial direction and detachable from the support ring; rotor support parts disposed in a pair with a gap in the axial direction and detachable from the rotor body at different positions in the axial direction from the ring support parts, each supporting the rotor body from below; a vertical position adjustment part capable of adjusting the vertical position of the rotor support part relative to the beam; and a rotor movement connection part supporting the rotor support part relative to the beam so that it can be moved in the axial direction. a ring movement connection portion that supports the ring support portion relative to the beam so as to be movable in the axial direction independently of the rotor movement connection portion.

2. A rotor lifting device as described in claim 1, wherein the rotor moving connection portion is capable of being attached with a connector of a lifting machine, and is capable of moving in the vertical direction together with the beam with the connector attached.

3. A rotor suspension device as described in claim 1 or 2, further comprising: an intermediate rotor support part that is positioned near the center of the rotor body in the axial direction relative to the pair of ring support parts and the pair of rotor support parts, is detachable from the rotor, and supports the rotor body; and an intermediate rotor moving connection part that supports the intermediate rotor support part relative to the beam so that it can move in the axial direction independently of the rotor moving connection part and the ring moving connection part.

4. A rotor hoisting tool as set forth in claim 3, wherein the intermediate rotor support portion is capable of supporting an impeller fixed to the rotor body by sandwiching the impeller in the axial direction.

5. A rotor support jig comprising: the rotor hanging device as defined in claim 1 or 2; and a rotor support stand that supports the rotor hung from the rotor hanging device from below the rotor, wherein the rotor support stand comprises: a base portion formed in a flat plate capable of being placed on an installation surface; a pair of first support portions extending vertically from the base portion and supporting the rotor body from below; and a pair of second support portions extending vertically from the base portion and supporting the support ring from below, wherein at least one of the first support portions and the second support portions is adjustable in height in the vertical direction.

6. A rotor support jig as described in claim 5, further comprising: a rotor fixing member extending vertically from the base portion at a first end of the base portion in the axial direction and capable of being fixed to the first axial end of the rotor body; and a base support portion extending vertically from the base portion at a second end opposite the first end of the base portion in the axial direction and capable of supporting the base portion against the installation surface when the base portion is positioned with the axial direction aligned with the vertical direction.

7. A rotor accommodating unit comprising: the rotor support jig described in claim 5; and a container that is detachable from the base and capable of covering the rotor supported on the rotor support base, wherein the container, together with the base, forms an enclosed space within which the rotor can be accommodated.

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