透平叶片热态冲蚀实验系统设计与实现  

Design and Implementation of Turbine Blade Hot Erosion Experiment System

作　　者：郑凌翔[1] 黄新友[1] 张志英[1] 张银君[2] 鲁嘉华[1] 

机构地区：[1]上海工程技术大学机械工程学院,上海201620 [2]河池学院物理与机电工程学院,广西宜州546300

出　　处：《实验室研究与探索》2016年第3期64-69,共6页Research and Exploration In Laboratory

基　　金：上海市教委085工程项目(JR0901)

摘　　要：设计并实现了一种用于实验研究透平叶片冲蚀成因、冲蚀行为和规律的中高温、低马赫数（Ma〈0.3）负压风洞实验系统。采用引风机提供负压环境,空气电加热器对气流进行可变温加热,翅片管式换热器对二相流降温,袋式除尘器回收冲蚀颗粒,并使用监控PC机通过DIGATTOT串口服务器进行实验数据采集和试验系统监控。经测试,系统最高温度可达750℃,气固两相流颗粒浓度可调,冲蚀速度可调,可0°~90°任意冲角调节。系统通过了温度、速度稳定性测试以及换热器性能测试。This paper proposes a design and implementation of thermal and negative-pressure wind tunnel testing system for middle-to-high temperature and low Mach number（ Ma 0. 3）. Draft fan is used to build negative pressure environment,air heater is used to heat airflow,finned-tube heat exchanger is used to cool two-phase flow,dust collector is used to recycle erosion particle and PC is used for experimental data acquisition and test system monitoring via the serial port server DIGATTOT. System framework and the inhalating approach of dust are introduced. The distance from spout to erosion surface is computed,and data acquisition and control unit are introduced. PC and DIGATTOT series serial server are used for telnet communication,the communication of server with all the sensors and control elements is completed by RS485 serial interface. PC interface is completed by using industrial configuration software MCGS. After testing,the maximum temperature of the system reaches 750℃,gas-solid flow particulate concentrations and erosion speed are all adjustable. The angle of attack can be arbitrarily adjusted with the range of 0°- 90°. By the temperature,velocity and heat stability tests,the experiment station has reached the design target.

关 键 词：热态冲蚀 负压 气固两相 数据通信 MCGS 

分 类 号：TP271.3[自动化与计算机技术—检测技术与自动化装置]