Mitsubishi Heavy Industries Compressor Corporation

Mitsubishi Heavy Industries Limited

Hoden Seimitsu Kako Kenkyusho Co., Ltd.

Mitsubishi Heavy Industries Compressor International Corporation

Akinori Tasaki

Akihiro Nakaniwa

Toyoaki Yasui

Daisuke Hirata

Yuya Konno

Naoki Hirata

Eizaburo Tanaka

Kenji Itagaki

Takashi Maehara

Yoshikuni Kono

Hisanori Kishimoto

Pham Khanhson

A rotor hanging tool includes a beam extending in parallel to an axial direction above a rotor main body, a pair of ring support portions disposed at an interval in the axial direction, connected to the beam, and attachable to and detachable from a support ring, a pair of rotor support portions disposed at an interval in the axial direction, connected to the beam, attachable to and detachable from the rotor main body at positions different from the ring support portions in the axial direction, and respectively supporting the rotor main body from below, and a vertical position adjustment unit for adjusting a position of each of the rotor support portions in a vertical direction with respect to the beam.

Rotor hanging tool, rotor support jig, rotor lifting method, and rotary machine disassembly method

A centrifugal compressor is provided with a plurality of diaphragms including a first diaphragm and a second diaphragm which are adjacent to each other in an axial direction, a casing disposed on a radially outer side of the plurality of diaphragms and accommodating an internal component including the plurality of diaphragms, at least one axial spacer disposed between the first diaphragm and the second diaphragm, and a scroll flow passage formed by a scroll inner peripheral wall and a scroll outer peripheral wall. The scroll inner peripheral wall is formed by a surface of the first diaphragm positioned on a radially inner side of an outer peripheral surface of the first diaphragm. At least a part of the scroll outer peripheral wall is formed by an inner peripheral surface of the casing.

Centrifugal compressor

An impeller includes: a disk that has a disk shape and is configured to rotate around an axis; and a plurality of blades that are provided at intervals in a circumferential direction on a side of a surface of the disk toward a direction of the axis and extend to a rear side in a rotation direction as the plurality of the blades go toward an outer side in a radial direction. Each of the plurality of the blades has: a primary blade which extends to the rear side in the rotation direction as the primary blade goes from an inner side toward the outer side in the radial direction, and a secondary blade which is provided at intervals on a side in front of the primary blade in the rotation direction to correspond to the primary blade.

Impeller and rotary machine

A method for manufacturing an impeller of a centrifugal rotating machine that is approximately disk-shaped and in which flow passages are formed between a plurality of blades and disposed in a radial manner from the inner circumferential side to the outer circumferential side, provided with a first flow passage formation step that forms a first region on the outer circumferential side within the flow passage by inserting an electrode of a shape fitting to the flow passage with the electric discharge machining method from the outer circumferential side of the disk-shaped body having an outer shape of an impeller, and a second flow passage formation step that forms a second region on the inner circumferential side within the flow passage from the inner circumferential side of the disk-shaped body.

Method of manufacturing by electric discharge machining an impeller for centrifugal rotating machine

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Hiroshima, Japan

Akinori Tasaki