Title:
MULTISTAGE CENTRIFUGAL FLUID MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/049398
Kind Code:
A1
Abstract:
Provided is a multistage centrifugal fluid machine with which the work of assembling an inner casing to a high-pressure-side head flange can be carried out efficiently. The multistage centrifugal fluid machine 100 comprises a rotor 3 to which a plurality of impellers (41–81) are attached in the axial direction, a cylindrical outer casing 2, and an inner bundle 1 that fits together with the outer casing 2 to form a flow path for an operating gas. The inner bundle 1 has a high-pressure-side head flange 11, a low-pressure-side head flange 12, and an inner casing 5 arranged between the high-pressure-side head flange 11 and the low-pressure-side head flange 12. The high-pressure-side head flange 11 and the inner casing 5 are fastened to each other with an elastic body 144 therebetween by means of a first bolt 142.
Inventors:
KUNISHI HAYATO (JP)
NARUSE TOMOHIRO (JP)
KAZAMA TAKESHI (JP)
TAKEDA KAZUO (JP)
YOSHIMURA HIROAKI (JP)
NARUSE TOMOHIRO (JP)
KAZAMA TAKESHI (JP)
TAKEDA KAZUO (JP)
YOSHIMURA HIROAKI (JP)
Application Number:
PCT/JP2018/008242
Publication Date:
March 14, 2019
Filing Date:
March 05, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
F04D29/42; F04D1/08; F04D17/12
Foreign References:
| JP2003269390A | 2003-09-25 | |||
| JPH0683988U | 1994-12-02 | |||
| JPS5875994U | 1983-05-23 | |||
| JPS51325B1 | 1976-01-07 | |||
| JP2014206132A | 2014-10-30 | |||
| JPS6067797A | 1985-04-18 | |||
| US4961260A | 1990-10-09 |
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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