Software Design Of Gas Turbine Blade Measurement System

As one of the main power plant of modern ship, gas turbine is very important, therefore, gas turbine technology has been rapid development. Western countries are increasing research on the gas turbine technology, and have achieved a lot after years of development. China started late in the gas turbine area, and had a poor foundation, so still have large gaps between developed countries after years of research.In order to improve the output power and efficiency of gas turbine, increasing the pressure and raising the temperature of gas is the development trend of gas turbine. However, because of the conditionality of the development of materials science, the ability to withstand high temperature and pressure of turbine blades is limited, so it can not be unlimited to increase the pressure and raise the temperature of gas turbine. The most direct and effective method to improve the performance of gas turbine is increasing the pressure and raising the temperature as much as possible under the premise of stable work of gas turbine. In order to ensure stable work of gas turbine, it has become very important to real-time monitor the work state of gas turbine blades, and it can improve the performance of gas turbine greatly to assess the performance and diagnose the failure phenomenon of gas turbine blades accuracy, which is significant.This subject realizes the temperature measurement of gas turbine blade based on the principle of radiation and combined with Ukraine turbine blade temperature measurement technology and virtual instrument technology. This system uses colorimetric temperature measurement method which calculates the object temperature according to two different wavelengths of radiation intensity, and experiments show that this method can greatly reduce the impact of temperature measurement accuracy caused by the emissivity of the object and has advantages such as fast response time, high reliability, low cost, etc. This software is written by the LabVIEW which is a graphical programming language, and LabVIEW achieve relevant functions by block diagram which is driven by data flow and program easy and convenient, so programming in LabVIEW can greatly reduce the project development cycle. This system can modify the relevant parameters settings according to different peripheral hardware circuits to adapt to different temperature environment. The system not only can real-time measure the temperature of blades, but also split the temperature data of blades accurately, analyze and process the data effectively, master the working state of blades, and display the results intuitively at the same time. The system also has a storage function which can help to analyze the state of blade and improve the system by saving the current data for follow-up analysis and comparing data at different time. Experiments show that this system not only has high temperature measurement accuracy, but also identify the characteristic temperature of blades accurately, and has advantages of anti-interference, stabilize and reliably.