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Hydraulic machine newly manufactured component, method for manufacturing or repairing such a component

A technology of hydraulic machinery and components, applied in the direction of engine manufacturing, manufacturing tools, mechanical equipment, etc., to achieve the effect of good wear resistance

Inactive Publication Date: 2014-11-12
GE RENEWABLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is expensive and results in potentially lengthy downtime

Method used

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  • Hydraulic machine newly manufactured component, method for manufacturing or repairing such a component
  • Hydraulic machine newly manufactured component, method for manufacturing or repairing such a component
  • Hydraulic machine newly manufactured component, method for manufacturing or repairing such a component

Examples

Experimental program
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Effect test

Embodiment Construction

[0033] figure 1 and figure 2 The bucket 1 shown in is intended to be mounted on the impingement turbine runner. Apart from the leading edge (not shown) of the bucket 1 at a front bifurcation (also not shown), the bucket 1 defines two half buckets 11 and 12 which are The central bulge 13 forming the leading edge 14 of the bucket 1 is separated. Each half bucket 11 and 12 is delimited by a side wall 15 or 16 on the side opposite the central bulge 13 . The walls 15 and 16 respectively form the two trailing edges 17 and 18 of the bucket 1 .

[0034] The concave surfaces of the buckets defining the half buckets 11 and 12 are the flow surfaces of the bucket 1, since they are assumed to be flushed by the pressurized water flow injected towards the water wheel. Within the meaning of the present invention, the flow surface is the surface of the hydraulic component which is intended to come into contact with the pressurized water flow passing through the machine.

[0035] Those p...

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PUM

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Abstract

The method involves pre-fabricating liners (30, 40, 50) by brazing ceramic massive elements (32, 42, 52) on metal supports (31, 41, 51), respectively, where one of the liners is coated with a metallization sub-layer (33) that is coated with a wear resistant layer (36). The liners are fixed on a single piece main body (20) of a component e.g. vane (1), that is mounted on a wheel of a hydraulic machine i.e. Pelton turbine, by welding seams (35-1, 35-2, 45-1, 45-2, 55-1, 55-2) and by arranging unwelded lugs (T3, T4, T5) between the corresponding liners and the main body, respectively. An independent claim is also included for a hydraulic machine component comprising a liner.

Description

technical field [0001] The invention relates to a method of manufacturing a hydromechanical component. The invention also relates to a method of servicing said components and to a new type of hydromechanical component. Background technique [0002] Within the meaning of the invention, the hydraulic machine may be a water turbine, a pump or a pump turbine, which are used, for example, in electric power plants. The turbines are fed by a pressurized flow of water from a channel or reservoir into which one or more channels empties. Depending on the type of terrain and weather conditions through which the one or more waterways pass, the water supplied to the machine may carry abrasive particles such as sand or scum to some extent. As the abrasive particles pass through the water turbine, they abrade the surfaces of the water turbine that the water flows through. This necessarily entails maintenance operations, in particular requiring the complete replacement of certain compon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K31/02C23C4/12C23C4/04B23P6/00
CPCF05B2280/2008F05C2203/0817F05B2230/237F05B2230/80F05C2203/0869F05B2280/6011F05B2280/20041B23P15/006F05B2280/20071F05C2251/10B23P6/005F05C2203/083F05C2253/12Y02E10/223F05C2203/0826F03B1/02F05B2280/20073F05B2280/5007F05B2230/232Y02E10/20Y02P70/50
Inventor S·普里让
Owner GE RENEWABLE TECH