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Device for measuring throat area error of nozzle guide vane

A turbine guide vane and error measurement technology, which is applied in the direction of electromagnetic measuring devices, electric/magnetic area measurement, etc., can solve the problems that the measurement accuracy and measurement speed cannot meet the production needs, consume a lot of money and time, and have low measurement efficiency. The effect of convenient measurement, satisfying production, and simple equipment

Inactive Publication Date: 2010-02-17
叶永
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simple tooling cannot meet the production needs regardless of the measurement accuracy and measurement speed, and the water flow test method converts the throat area of ​​the wheel guide vane by measuring the time for the water in the water tank to flow through the throat of the turbine guide vane, which requires a lot of money and time. Low measurement efficiency

Method used

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  • Device for measuring throat area error of nozzle guide vane
  • Device for measuring throat area error of nozzle guide vane
  • Device for measuring throat area error of nozzle guide vane

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] refer to figure 1 , figure 2 , image 3 , is an error measuring device for the throat area of ​​the turbine guide vane. It includes a substrate 1 with a rectangular hole in the center, a front left support seat 2 and a front right support seat 3 which are respectively fixed by screws on the front edge of the rectangular hole on the upper surface of the substrate 1, and a rear seat which is respectively fixed by screws on the rear edge of the rectangular hole. The left support seat 4 is positioned at the right support seat 6 fixed by screws on the right edge of the rectangular hole.

[0023] A first fixed shaft 7 extending toward the rear of the base plate 1 is provided on the front left support base 2 , and three width measuring rotating rods 8 are sequentially arranged along the axial direction of the first fixed shaft 7 ....

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Abstract

The invention relates to the manufacturing field of axial-flow type gas turbine engines, and discloses a device for measuring throat area error of a nozzle guide vane. The device mainly comprises a baseplate of which the center is a rectangular hole, and the baseplate is provided with three width measurement revolving bars, a height measurement revolving bar and three corresponding width locatingplates and a corresponding height locating bar.

Description

technical field [0001] The invention relates to the field of axial-flow gas turbine engine manufacture, in particular to an error measuring device for the throat area of ​​a turbine guide vane. Background technique [0002] For an axial-flow gas turbine engine, the throat area of ​​the first-stage guide vane of the turbine is an important parameter affecting engine performance. It is the smallest channel for airflow through the engine and limits the minimum gas flow through the core of the engine. If the throat area of ​​the first-stage guide vane of the turbine deviates from the design value, it will affect the expansion ratio of the turbine. For high and low pressure turbines, it will also affect its performance matching, thereby affecting the efficiency of the turbine, the temperature before the turbine and the fuel consumption rate. [0003] Due to the limitation of blade precision casting technology, the casting size deviation of blade airfoil is unavoidable. Even if a...

Claims

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Application Information

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IPC IPC(8): G01B7/32
Inventor 叶永
Owner 叶永
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