JP2012189025A - Rotating machine assembling method and rotating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotating machine assembling method and a rotating machine capable of suppressing occurrence of the deflection of a lower half of an inner casing lower half in a vertical direction.SOLUTION: A rotating machine 10 includes an outer casing 13 divided into an outer casing upper half 11 and an outer casing lower half 12 by the horizontal plane passing through the rotor axis Q, an inner casing 16 divided into an inner casing upper half 14 and an inner casing lower half 15 by the horizontal plane passing through the rotor axis Q, accommodated in the outer casing 13, and provided with a reinforcing flange 15b supported by the outer casing 13 from the outer wall surface of the inner casing lower half 15, and a rotor 17 disposed in the inner casing 16. A locking part 15c which is engaged with the outer casing lower half 12 to prevent any movement of the inner casing lower half 15 in the horizontal direction is provided to the reinforcing flange 15b.

Description

  The present invention relates to a rotating machine assembly method and a rotating machine that are provided with an outer casing and an inner casing divided into an upper half part and a lower half part in a horizontal plane passing through a rotor shaft of a rotor, and are assembled in order from a lower member.

  2. Description of the Related Art Conventionally, there is known a rotating machine that includes an outer casing and an inner casing that are divided into an upper half and a lower half on a horizontal plane that passes through the rotor shaft of the rotor, and is assembled in order from a lower member.

  Further, in such a rotating machine, for example, in a rotating machine constituting a low pressure portion of a steam turbine, the entire turbine is large, and in particular, a substantially semicircular shape is formed in the lower half of the inner casing. Since the rotor support portion and other components are integrally formed, the center of gravity is often located at the lower portion of the inner vehicle center compared to the inner vehicle end portion.

  Here, as shown in FIG. 10, when the inner car lower half 1 is covered with the inner car upper half 2 without adopting any support structure, the inner car lower half 1 is As a whole, it is lowered downward and bending occurs in the vertical direction. As a result, floating occurs at both ends in the width direction of the lower half 1 of the inner car, and there is a problem in that a gap P is formed at the mating portion with the upper half 2 of the inner car.

  Further, when such a gap P is generated, the bolt insertion hole for coupling the lower half 1 of the inner car and the upper half 2 of the inner car is displaced, and the connecting bolt is not inserted. There was a problem with the time.

  Therefore, as shown in FIGS. 8 and 9, flanges 1 a and 3 a that are engaged with each other are formed on the lower half 3 of the outer car and the lower half 1 of the inner car, and the lower half 1 of the inner car is connected to the lower half 3 of the outer car. It is conceivable to provide a reinforcing structure, a correcting structure, or the like that corrects the deflection of the lower half 1 of the inner car 1 in the vertical direction by engaging the flanges 1a and 3a when they are stacked on each other (see, for example, Patent Document 1). . 8 and 9, reference numeral 4 denotes an outer car upper half, and 5 denotes a foundation for supporting the outer car lower half 3 when assembled.

JP 2002-235505 A

  However, in the rotating machine assembly method and the rotating machine described above, when various flanges 1a, 3a, etc. are formed on the outer car side and the inner car side for reinforcement and correction, the overall weight increases. In addition, since there are various components in the actual lower half 3 and the lower half 2 of the inner car, the vertical direction of the lower half 1 of the inner car 1 is required. It has been difficult to ensure a flange shape sufficient to sufficiently suppress the deflection.

  For this reason, when assembling the upper half 2 of the inner car to the lower half 1 of the inner car, for example, auxiliary work such as lifting the vicinity of the center of the lower half 1 of the inner car 1 from below with the hydraulic jack 6 is required. The problem that it ends up has arisen.

  Furthermore, since it is difficult for such a hydraulic jack 6 to secure an extra work space below the lower half 3 of the outer car at the assembly work site or the like, the power required to lift the lower half 1 of the inner car is high. It is difficult to install the large hydraulic jack 6 provided, and in addition to the hydraulic jack 6, the inner car lower half 1 and the inner car upper half 2 are pulled to the left and right in the width direction by a hydraulic jack (not shown). Further assistance work such as was needed.

  Then, an object of this invention is to provide the assembly method and rotary machine of a rotary machine which can suppress generation | occurrence | production of the bending of the vertical direction of an inner vehicle lower half part.

  In order to solve the above problems, an assembly method of a rotary machine according to the present invention includes an outer casing divided into an upper half of an outer car and a lower half of an outer car on a horizontal plane passing through the rotor shaft, and an inner vehicle on the horizontal plane passing through the rotor shaft. An inner casing provided with an overhanging portion that is divided into a half portion and a lower half portion of the inner vehicle and is accommodated in the outer casing and supported by the outer casing from an outer wall surface of the lower half of the inner vehicle; A rotor disposed in a vehicle interior, and an assembly method for a rotary machine that is assembled in the order of the outer car lower half, the inner car lower half, the rotor, the inner car upper half, and the outer car upper half A step of installing the lower half of the outer car, a step of suspending the lower half of the inner car and transporting it to an inner car installation position with respect to the lower half of the outer car, and the inner car at the inner car installation position. The overhanging part cannot be moved horizontally with respect to the lower half of the outer vehicle while the lower half is suspended. A step of stopping, a step of releasing the state in which the lower half of the inner car is suspended while maintaining the locked state, and a step of fixing the lower half of the inner car to the lower half of the outer car, and the inner car And attaching the rotor and the upper half of the inner car in this order to the lower half.

  According to the method of assembling a rotating machine of the present invention, the overhanging portion is locked in the horizontal direction so as to be immovable with respect to the lower half of the outer vehicle while the lower half of the inner vehicle is suspended, and the locked state is maintained. By canceling the state in which the lower half of the inner vehicle is suspended, the vertical deflection of the lower half of the inner vehicle can be suppressed.

  Further, in the method of assembling the rotating machine according to the present invention, after the step of locking the lower half of the inner car, tension is applied to the wire passed between the lower half of the outer car and the lower half of the inner car. And providing a step of lifting the central portion in the width direction of the lower half of the inner vehicle.

  According to the method of assembling a rotating machine of the present invention, it is possible to correct the deflection of the lower half of the inner car without having to install a hydraulic jack or the like in the lower half of the inner car.

  Further, the rotating machine of the present invention includes an outer casing divided into an outer car upper half and an outer car lower half in a horizontal plane passing through the rotor shaft, an inner car upper half and an inner car lower half in the horizontal plane passing through the rotor shaft. An inner casing provided with an overhanging portion that is housed in the outer casing and is supported by the outer casing from an outer wall surface of the lower half of the inner casing, and a rotor disposed in the inner casing. In the rotary machine having the above, the overhanging portion is provided with a locking portion that engages with the lower half portion of the outer car and prevents the lower half portion of the inner car from moving in the horizontal direction. .

  According to the rotating machine of the present invention, it is possible to ensure the shape retaining property at the time of assembling without securing the installation space such as the flanges that are engaged with each other at the time of assembling, the reinforcing member that increases the weight, and the correcting member. Not only can the occurrence of vertical deflection of the lower half part be suppressed, but it can also contribute to weight reduction of the lower half part of the outer car and the lower half part of the inner car.

  The assembly method and the rotary machine of the rotary machine of the present invention can suppress the occurrence of vertical deflection of the lower half of the inner vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS The rotary machine which concerns on one Embodiment of this invention is shown, (A) is a front view of a rotary machine, (B) is an enlarged view of the principal part of a rotary machine, (C) is an enlarged view of the other principal part of a rotary machine. It is. It is a perspective view of the inner casing of the rotary machine which concerns on one Embodiment of this invention. The procedure before an assembly of the lower half part of the inner car which concerns on the rotary machine of one Embodiment of this invention is shown, (A) is explanatory drawing of a foundation set stage. (B) is explanatory drawing of the preparation stage before conveyance of an inner vehicle lower half part. (C) is explanatory drawing of the inner vehicle lower half part conveyance possible stage. It is explanatory drawing of the state which showed the assembly procedure of the inner vehicle lower half part which concerns on the rotary machine of one Embodiment of this invention, and lifted the inner vehicle lower half part. It is explanatory drawing of the state which showed the assembly procedure of the rotary machine which concerns on the rotary machine of one Embodiment of this invention, and attached the rotor to the inner vehicle lower half part. It is explanatory drawing of the state which mounts an inner vehicle upper half part to an inner vehicle lower half part. The modification of the rotary machine of one Embodiment of this invention is shown, (A) is explanatory drawing of the principal part of the modification 1, (B) is explanatory drawing of the principal part of the modification 2, (C) is modification 3. It is explanatory drawing of the principal part. It is a front view of the conventional rotary machine. It is a disassembled front view of the conventional rotary machine. It is explanatory drawing of the conventional inner vehicle compartment.

  Next, a rotating machine assembling method and a rotating machine according to an embodiment of the present invention will be described with reference to the drawings. The following examples are preferred specific examples of the method of assembling the rotary machine and the rotary machine of the present invention, and may have various technically preferred limitations, but the technical scope of the present invention is Unless otherwise specifically limited, the present invention is not limited to these embodiments. In addition, the constituent elements in the embodiments shown below can be appropriately replaced with existing constituent elements and the like, and various variations including combinations with other existing constituent elements are possible. Therefore, the description of the embodiment described below does not limit the contents of the invention described in the claims.

  1 shows a rotating machine according to an embodiment of the present invention, FIG. 1 (A) is a front view of the rotating machine, FIG. 1 (B) is an enlarged view of a main part of the rotating machine, and FIG. 1 (C) is a rotating machine. FIG. 2 is a perspective view of an inner casing of a rotating machine according to an embodiment of the present invention, and FIG. 3 is a lower half portion of the inner car according to the rotating machine of an embodiment of the present invention. 3 (A) is an explanatory view of a basic set stage, FIG. 3 (B) is an explanatory view of a preparation stage before transporting the lower half of the inner car, and FIG. 3 (C) is an inner lower part of the inner car. Explanatory drawing of transportable stage, explanatory diagram of main part showing method and rotating machine, FIG. 4 shows the assembly procedure of lower half of inner car related to rotating machine of one embodiment of the present invention and lifts lower half of inner car FIG. 5 is an explanatory diagram of a state in which the rotor is mounted on the lower half of the inner vehicle, showing the assembly procedure of the rotary machine according to the rotary machine of one embodiment of the present invention, and FIG. FIG. 7 is an explanatory view of a state in which a rotor is attached to the lower half of the inner car, showing the assembly procedure of the rotary machine according to the rotating machine of one embodiment of the invention, and FIG. 7 is a state of attaching the upper half of the inner car to the lower half of the inner car It is explanatory drawing of.

  In FIG. 1, a rotary machine 10 according to the present invention includes an outer casing 13 divided into an outer car upper half 11 and an outer car lower half 12 on a horizontal plane passing through the rotor axis Q, and an inner car on the horizontal plane passing through the rotor axis Q. An inner vehicle compartment 16 that is divided into a half portion 14 and an inner vehicle lower half portion 15 and is housed inside the outer vehicle compartment 13, and a rotor 17 that is disposed inside the inner vehicle compartment 16 are provided.

(External car upper half 11)
The outer car upper half part 11 includes a wall part 11a having a substantially arc-shaped cross section that is continuous in the depth direction of the page and orthogonal to the rotor axis Q, and horizontal flange parts 11b provided at both ends thereof.

(Lower half 12 of foreign car)
The lower half portion 12 of the outer vehicle includes a side wall 12a that rises at both ends in the width direction, a horizontal flange portion 12b that is formed at the upper end of each side wall 12a, and a horizontal inner vehicle support portion 12c that is provided in the middle of the side wall 12a. I have. Further, as shown in FIG. 1 (B), the inner vehicle support portion 12c is provided with a step portion 12d that is provided inside the horizontal flange portion 12b and is raised by one step. Instead of the stepped portion 12d, a hole portion 12e may be used as shown in FIG.

(External vehicle compartment 13)
Thereby, the outer casing 13 is connected by bolting the horizontal flange portions 11b and 12b on a horizontal plane passing through the rotor shaft Q. The outer casing 13 is not limited to the illustrated example as long as it can sufficiently suppress deformation due to the weight load from the inner casing 16 and the rotor 17 and the vacuum load during driving. At this time, the outer car lower half part 12 has a structure for correcting deformation when the inner car lower half part 15 is installed even though a flange or the like for reinforcing the load described above may be formed. It is not necessary to adopt. Further, end walls (not shown) are provided at the front and rear ends of the outer car upper half 11 and the outer car lower half 12 in the depth direction of the drawing.

(Inner car upper half 14)
The inner half 14 of the inner car has a barrel part 14a having a substantially semicircular cross section that is continuous in the depth direction of the paper surface and orthogonal to the rotor axis Q, and outward from the left and right in the width direction of the trunk part 14a as shown in FIG. And a plurality of reinforcing flanges 14b that are flat in the vertical direction perpendicular to the rotor shaft Q (FIG. 1), and a turbine exhaust pipe 14c that protrudes from the upper portion of the trunk portion 14a.

(Inner car lower half 15)
The lower half portion 15 of the inner vehicle has a barrel portion 15a having a substantially semicircular cross section that is continuous in the depth direction of the page and orthogonal to the rotor axis Q, and outward from the left and right in the width direction of the barrel portion 15a as shown in FIG. A plurality of reinforcing flanges 15b that are flat in the vertical direction perpendicular to the rotor axis Q (FIG. 1), and provided below the extending end of the reinforcing flange 15b and below the horizontal plane that passes through the rotor axis Q. And a plurality of pipes (for example, main steam pipes, turbine inlet / outlet pipes, etc.) 15d whose lower ends protrude downward from the body part 15a. The reinforcing flange 14b of the inner car upper half 14 and the reinforcing flange 15b of the inner car lower half 15 are formed to be continuous in the vertical direction. Moreover, the latching | locking part 15c is formed in the position and magnitude | size which can be engaged with the level | step-difference part 12d or the hole part 12e, as shown to FIG. 1 (B), (C).

(Inner compartment 16)
Thereby, the inner casing 16 is formed into a substantially cylindrical shape by the combined structure of the body portions 14a and 15a, and the rotor 17 is disposed therein. The specific configuration of the rotor 17 is omitted. Further, the inner casing 16 in the illustrated example is provided with a plurality of pipes (14c, 15d) on the upper and lower sides thereof, for example, steam supplied from a boiler (not shown) flows in from the main steam pipe, and the internal speed control stage and high pressure are provided. After expanding and performing work in the turbine stage (both not shown), the high-pressure exhaust steam passes through the high-pressure turbine outlet pipe to the boiler, and the steam reheated from the boiler passes from the intermediate-pressure turbine inlet pipe. Used as an inner casing 16 of a high-medium pressure integrated steam turbine having a path that flows in and expands in an intermediate-pressure turbine to perform work, and then flows out from the turbine exhaust pipe 14c to a low-pressure turbine (not shown). However, the number and position of these pipes, the entrance and exit, etc. depend on the type and function of the turbine, and are not limited to the illustrated structure.

(Assembly procedure)
Next, a procedure for assembling the rotary machine 10 will be described with reference to FIGS. In the present embodiment, as shown in FIG. 3 (A), a plurality of reamer bolts 15e are projected from the edge of both ends of the trunk portion 15a of the inner car lower half portion 15 in the depth direction of the paper. Yes. The reamer bolt 15e is used as a lower convenience means for coupling the inner car upper half part 14 and the inner car lower half part 15 by engaging with the inner car upper half part 14. Further, a screw hole portion 15f that opens to the surface is provided on the bottom surface of the body portion 15a.

  In such a configuration, the inner vehicle lower half 15 is mounted on the pair of foundations 20 before being assembled to the outer vehicle lower half 12 as shown in FIG. The suspension pillar 21 such as H-shaped steel straddling is placed, and the suspension pillar 21 is temporarily fixed to the lower half portion 15 of the inner vehicle using the reamer bolt 15e.

  Next, as shown in FIG. 3C, the lower end of the tension bolt 22 supported by the suspension column 21 is screwed into the screw hole 15f, and the vertical position of the tension bolt 22 is set to the support position for the suspension column 21. Then, the lower end of the body portion 15a is lifted so that the facing distance between the reamer bolts 15e is a predetermined distance defined by design.

  That is, when the inner car lower half part 15 is placed on the foundation 20, the inner car lower half part 15 is bent in the vertical direction due to its weight. The reference | standard of whether the bending was eliminated is prescribed | regulated by the opposing space | interval of the reamer bolt 15e.

  Then, as shown in FIG. 4, the lower half portion 15 of the inner vehicle that has been deflated in this manner secures the coupled state between the suspension column 21 and the reamer bolt 15 e, and then moves the inner vehicle together with the suspension column 21 with the wire 23. The lower half portion 15 is lifted and transported to and placed on the lower half portion 12 of the outer vehicle previously placed on the foundation 20 separate from the foundation 20 described above.

  At this time, since the lower half portion 15 of the inner vehicle is in a state in which the flexure has been eliminated, the locking portion 15c can be changed to the stepped portion 12d or just by adjusting the relative position between the lower half portion 12 of the outer vehicle and the lower half portion 15 of the inner vehicle. Engages with the hole 12e. In addition, you may comprise so that the latching | locking part 15c, the level | step-difference part 12d, or the hole part 12e can be engaged or adjusted with a certain amount of margin including an error.

  From this state, as shown in FIG. 5, even if the suspension column 21 is removed, the step portion 12d or the hole portion 12e is located inside the locking portion 15c, so that the locking portion 15c is moved in the horizontal direction. Since the relative position between the outer car lower half 12 and the inner car lower half 15 is defined, the inner car lower half 15 can be easily and reliably fixed to the outer car lower half 12 (for example, bolt fixing). can do.

  Furthermore, after installing the rotor 17 from this state, as shown in FIG. 6, the inner car upper half 14 is lifted by the suspension pillar 24 and the wires 25 and 26, and the inner car lower half 14 is lifted. The inner car upper half part 14 is overlapped with the part 15.

  At this time, the upper half 14 of the inner car can be lifted so as to spread as a whole by weight by lifting two locations in the vicinity of both ends thereof with a pair of wires 25. Excessive spreading or narrowing is suppressed. In addition, since the width | variety when the inner vehicle upper half part 14 is lifted on the basis of the site | part engaged with the reamer bolt 15e can be confirmed, for example, the turbine exhaust pipe 14c is moved downward by a hydraulic jack (not shown). The width can be adjusted by pushing down (or lifting).

  Thereby, since the reamer bolt 15e stands up without being inclined due to the bending of the inner car lower half part 15, the inner car upper half part 14 can be prepared and reliably overlapped with the inner car lower half part 15.

  Then, after the inner car upper half part 14 is coupled to the inner car lower half part 15, the outer car upper half part 11 is coupled to the outer car lower half part 12 by similar lifting to complete the assembly of the rotary machine 10. it can.

  Thus, according to the present embodiment, the inner vehicle lower half portion 15 (and the inner vehicle upper half portion 14) is overlaid on the outer vehicle lower half portion 12 (or the inner vehicle lower half portion 15) in a state where the deflection of the inner vehicle lower half portion 15 (and the inner vehicle upper half portion 14) is eliminated. Furthermore, the upper inner car upper half 14 (or the outer car upper half 11) can be overlaid while maintaining the state in which the bending is eliminated.

(Application examples)
By the way, in the above-described embodiment, it has been described that a correction flange is not provided in the outer car lower half part 12 as in the prior art, but depending on the weight of the inner car lower half part 15 and the like, FIG. As shown to (A)-(C), you may form the inclination flange 12f for correction | amendment which served also as reinforcement in the outer vehicle lower half part 12. FIG.

  Further, as shown in FIG. 7 (A), the contact flange 15g, which suppresses the occurrence of bending by engaging the inner surface of the side wall 12a of the outer vehicle lower half portion 12, can be attached to and detached from the reinforcing flange 15b as a deflection preventing function. It may be provided and used together with the locking portion 15c to prevent bending. The contact flange 15g is removed when the inner car upper half 14 is installed.

  Further, for example, when slight bending occurs, as shown in FIG. 7B, the wire 27 is wound around the surface of the body portion 15a of the lower half portion 15 of the inner vehicle, and the wire 27 It is also possible to eliminate the bending by pulling the other end of the wire 27 with the winch 29 with one end fixed by the fixing portion 28. At this time, since the wire 27 only passes under the lower half portion 15 of the inner vehicle, it is not necessary to install a hydraulic jack or the like below the lower half portion 15 of the inner vehicle.

  Further, as shown in FIG. 7C, when there is a deflection that cannot be corrected by the locking portion 15c, the overlapping end surfaces of the inner car upper half 14 and the inner car lower half 15 Alternatively, the taper portions 14d and 15h may be formed and the deflection may be corrected when the inner vehicle upper half portion 14 is overlapped with the inner vehicle lower half portion 15. At this time, the tapered portions 14d and 15h are set so as to be inclined in a direction in which the lower half portion 15 of the inner vehicle spreads when the upper half portion 14 of the inner vehicle is overlapped. Further, since most of the bending is eliminated by the engagement between the locking portion 15c and the stepped portion 12d or the hole portion 12e, the taper portions 14d and 15h cannot completely eliminate the deflection. When overlapping the inner car lower half portion 15, the displacement is large and it is difficult to overlap, and the deflection of the inner car upper half portion 14 is corrected while the tapered portions 14 d and 15 h are engaged.

Thus, in the method of assembling the rotary machine 10 of the present invention, the outer casing 13 divided into the outer car upper half 11 and the outer car lower half 12 on the horizontal plane passing through the rotor shaft Q, and the rotor shaft Q A reinforcing flange 15b that is divided into an inner car upper half 14 and an inner car lower half 15 in a horizontal plane that passes through and is housed in the outer casing 13 and supported from the outer wall surface of the inner car lower half 15 to the outer casing 13 is provided. An inner vehicle compartment 16 provided, and a rotor 17 disposed in the inner vehicle compartment 16. The outer car lower half 12, the inner car lower half 15, the rotor 17, the inner car upper half 14, and the outer car upper half The method of assembling the rotating machine 10 assembled in the order of the parts 11, the step of installing the outer car lower half 12, and the inner car lower half 15 are suspended and conveyed to the inner car installation position relative to the outer car lower half 12 And the lower half of the outer car while the lower half 15 of the inner car is suspended at the position where the inner car is installed. 2, the step of locking the reinforcing flange 15 b so as to be immovable in the horizontal direction, and the state in which the inner vehicle lower half 15 is suspended while the locked state is maintained, and then the outer vehicle lower half 12 is By assembling the rotary machine 10 in the step of fixing the inner car lower half 15 and the step of attaching the rotor 17 and the inner car upper half 14 to the inner car lower half 15 in this order, the inner car lower half 15 can be superposed on the lower half 12 of the outer vehicle in a state where the bending of 15 is eliminated.
Further, after the step of locking the inner car lower half 15, tension is applied to the wire 27 that passes between the outer car lower half 12 and the lower part of the inner car lower half 15 to By performing the step of lifting the central portion in the width direction, it is possible to correct the deflection of the lower half portion 15 of the inner vehicle without having to install a hydraulic jack or the like in the lower half portion 15 of the inner vehicle.
Further, in the rotary machine 10 according to the present invention, the outer casing 13 is divided into an outer car upper half 11 and an outer car lower half 12 on a horizontal plane passing through the rotor axis Q, and the inner car on the horizontal plane passing through the rotor axis Q. The inner casing 16 is provided with a reinforcing flange 15b that is divided into a half portion 14 and an inner vehicle lower half portion 15 and is accommodated in the outer casing 13 and supported by the outer casing 13 from the outer wall surface of the inner vehicle lower half 15. And a rotor 17 disposed in the inner casing 16, the outer flange lower half 12 is engaged with the reinforcing flange 15 b to prevent the inner casing lower half 15 from moving in the horizontal direction. By providing the engaging portion 15c to be bent, it is possible to suppress the occurrence of bending of the inner vehicle lower half portion 15.

Q ... Rotor shaft 10 ... Rotating machine 11 ... Outer car upper half 12 ... Outer car lower half 13 ... Outer car compartment 14 ... Inner car upper half 15 ... Inner car lower half 15b ... Reinforcement flange (overhang)
15c ... Locking part 16 ... Inner compartment 17 ... Rotor 27 ... Wire

Claims (3)

An outer casing divided into an upper half of the outer car and a lower half of the outer car on a horizontal plane passing through the rotor shaft;
A projecting portion that is divided into an inner car upper half part and an inner car lower half part in a horizontal plane that passes through the rotor shaft, is housed in the outer car interior, and is supported by the outer car room from an outer wall surface of the inner car lower half part. An equipped interior compartment,
A rotor disposed in the inner vehicle compartment;
With
The outer car lower half, the inner car lower half, the rotor, the inner car upper half, and the outer car upper half are assembled in this order,
Installing the lower half of the outer vehicle;
Suspending the lower half of the inner car and transporting it to the inner car installation position relative to the lower half of the outer car;
A step of locking the overhanging portion in the horizontal direction so as to be immovable with respect to the outer car lower half while the inner car lower half is suspended at the inner car installation position;
Fixing the inner vehicle lower half to the outer car lower half after releasing the suspended state of the inner car lower half while maintaining the locked state;
Attaching the rotor and the upper half of the inner car in this order to the lower half of the inner car;
A method of assembling a rotating machine, comprising:   After the step of locking the lower half of the inner vehicle, the center in the width direction of the lower half of the inner vehicle by applying tension to the wire passing between the lower half of the outer vehicle and the lower half of the lower half of the inner vehicle The method of assembling a rotating machine according to claim 1, further comprising a step of lifting the part. An outer casing divided into an upper half of the outer car and a lower half of the outer car on a horizontal plane passing through the rotor shaft;
A projecting portion that is divided into an inner car upper half part and an inner car lower half part in a horizontal plane that passes through the rotor shaft, is housed in the outer car interior, and is supported by the outer car room from an outer wall surface of the inner car lower half part. An equipped interior compartment,
A rotor disposed in the inner vehicle compartment;
In a rotating machine with
A rotating machine, wherein the overhanging portion is provided with a locking portion that engages with the lower half of the outer vehicle and prevents the lower half of the inner vehicle from moving in the horizontal direction.

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