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Tool for measuring geometric parameters of blades or vanes in turbines

A technology of geometric parameters and turbines, applied in the direction of measuring devices, mechanical measuring devices, adopting mechanical devices, etc., can solve problems such as changing independent components

Active Publication Date: 2020-03-03
ANSALDO ENERGIA SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The disadvantage is that this method requires changes to individual components such as blades or vanes

Method used

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  • Tool for measuring geometric parameters of blades or vanes in turbines
  • Tool for measuring geometric parameters of blades or vanes in turbines
  • Tool for measuring geometric parameters of blades or vanes in turbines

Examples

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Embodiment Construction

[0055] figure 1 A preferred embodiment of a tool 1 for measuring the distance between the tip of a vane or an airfoil of a blade and a reference plane is shown in a perspective view. The measuring tool 1 according to the invention basically comprises two guide plates 4 , 5 which are fixedly arranged to each other by means of a number of bolted rods 6 . The specific shape of these guide plates 4, 5, their size and their distance from each other mainly depend on the size of the airfoil to be measured and, if used for measurements on blade rotors or stators, also on the adjacent airfoils The distance between, ie, these parameters may vary depending on the individual housings.

[0056] The guide plates 4,5 are equipped with at least two types of through-holes 7,8: a first through-hole 7 designed to pass through the airfoil of the vane 15 or blade 17 to be measured, and a first through-hole 7 designed to receive and guide a length measuring tool At least one (preferably a certain...

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PUM

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Abstract

Tool (1) for measuring geometrical parameters of a vane (15) or a blade (17) of a turbomachine, particularly for measuring a distance between the tip (3) of the vane (15) or blade (17) and a reference plane, the tool (1) comprising a first guiding plate (4) and a second guiding plate (5), the first guiding plate (4) and the second guiding plate (5) being spaced apart from each other in a defined position by means of at least two spacers (6), wherein each of the first guiding plate (4) and the second guiding plate (5) is equipped with a first through hole (7) and one or more second through holes (8, 8', 8", 8"', 8""), the first through hole (7) being designed to insert through an airfoil (2) of said vane (15) or blade (17) and each of the second through holes (8, 8', 8", 8"', 8"") being designed to receive a length measuring tool (9), e.g. a depth gauge.

Description

technical field [0001] The present invention generally relates to the technical field of turbomachines. More specifically, the invention relates to a tool for measuring geometric parameters of blades or vanes in a turbomachine, such as the length of an airfoil, allowing measurements to be made on blade rotors or blade stators as well as on separate components. Background technique [0002] In order to optimize the efficiency of a turbine (eg, compressor, gas turbine, steam turbine), any process that causes losses can be minimized as much as possible. Losses are caused by leakage flows that pass through gaps between rotating and stationary components of the turbomachine. In order to reduce leakage flow, the gaps between these components must be set to a minimum during operation. [0003] Mutual contact between the surfaces of rotating and stationary components occurs during operation for several reasons, with the result that the surfaces wear and thus increase gaps and leak...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/02
CPCG01B5/205G01B21/047
Inventor B.福尔拉德E.沃格特F.古贝曼恩A.沃斯科博伊尼科夫
Owner ANSALDO ENERGIA SWITZERLAND AG