Supporting structure of rotating machine

Abstract

To provide a supporting structure of a rotating machine having high rigidity against a load in the axial direction and a load in a direction perpendicular to the axial direction. The supporting structure of the rotating machine including a transverse shaft type liquid pump includes a pair of support pedestals (21, 23) facing each other and used for supporting the rotating machine (100) and a pair of rectangular reinforcing members (29a, 30a) respectively connected to axial end faces (21a, 23a) of a pair of support pedestals (21, 23).

Description

technical field [0001] The present invention relates to a support structure of a horizontal axis type rotary machine for transferring liquid or gas. Background technique [0002] In boiler water supply systems, petroleum / chemical equipment factories, ironworks, etc., there are processes that require high-pressure water of several MPa to twenty MPa. Therefore, to supply such high-pressure water, a horizontal-shaft multistage centrifugal pump is used. [0003] Figure 16 It is a cross-sectional view showing an example of a horizontal axis multistage centrifugal pump. Figure 16 The illustrated multistage pump 100 as a rotary machine has a plurality of impellers 2 and a rotary shaft 1 to which these impellers 2 are fixed. The rotary shaft 1 extends horizontally and is supported by a thrust bearing 9A and a radial bearing 9B. A plurality of impellers 2 are arranged in series on the rotating shaft 1 , and a plurality of guide vanes 6 are arranged so as to surround the impellers...

AI Technical Summary

Problems solved by technology

However, since the reinforcement members 122a, 122b, 124a, and 124b are plate-shaped, as Figure 18 As shown in (a), it is easy to bend when a load in the axial direction (direction indicated by arrow A) is applied

Additionally, if Figure 18 As shown in (b), when a load is applied in a direction perpendicular to the axial direction (the direction indicated by the arrow B), the reinforcement members 122c and 124c extending in the direction perpendicular to the axial direction are also easily bent.

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