固液两相流泵送性能参数的测试技术研究

发布时间：2018-06-27 15:02

本文选题：固液两相流泵 + 测试系统　；参考：《河北工程大学》2014年硕士论文

【摘要】：固液两相流泵由于其运输的是固液混合物介质，，使其在冶金、化工、水利、矿山等行业都有普遍的使用，当前固液泵主要存在磨损严重、效率低、寿命短、可靠性差等弊端。当下固然有不少学者针对于固液泵的弊端进行了钻研，然而由于泵流动的复杂性，许多流场结构和机理仍十分模糊，还需做大量的研究工作。与此同时，针对当前经验与理论半结合的固液两相流泵开发与研制方法，改善目前固液泵的研制方法、泵的外特性都需要对固液两相流泵送性能参数进行测试技术。然而，当下的固液两相流泵送性能参数的测试技术仍存在着过时的半自动化控制测试方法、散漫的测量位置、测试数据未综合归纳处理、不良好的操作界面等缺陷。与西方发达国家比较，国内的测试技术相对过时。本文恰是在研究了上述测试现状后，首先剖析了固液两相流泵送性能参数的测量方法，再透过虚拟仪器技术的集成、采集、数据处理等特性，最后构建了固液泵送性能参数的测量试验台，分析了影响固液两相流泵性能参数的各种因素。本文搭建的试验台是将固液两相流的介质特性、固液泵测试原理和方法作为研究对象，基于NI的LabVIEW2012虚拟仪器开发软件，按照测试技术的精度要求，将测量技术、数据采集处理技术与虚拟仪器技术进行了无缝性的集成，设计搭建了固液泵送性能参数测量试验台，以实现测试固液泵送性能参数、保存测量数据、生成结论为目的。本文利用设计开发的固液两相流泵送性能试验平台，进行了介质浓度和不同介质颗粒大小的固液两相流测试试验，并连合前人在固液两相流泵方面的研究成果，介绍了介质特性、泵结构参数对固液泵性能的影响。
[Abstract]:Solid-liquid two-phase flow pump is widely used in metallurgy, chemical industry, water conservancy, mine and other industries because of its transport of solid-liquid mixture medium. At present, solid-liquid pump has many disadvantages, such as serious wear, low efficiency, short life, poor reliability and so on. At present, many scholars have studied the drawbacks of solid-liquid pump, but due to the complexity of pump flow, many flow field structure and mechanism are still very fuzzy, and a lot of research work needs to be done. At the same time, in view of the development and research method of solid-liquid two-phase flow pump which combines experience and theory at present, improving the research method of solid-liquid pump at present, the external characteristics of the pump need to test the performance parameters of solid-liquid two-phase flow pump. However, the current testing technology of solid-liquid two-phase flow pump performance parameters still has some defects, such as outdated semi-automatic control test method, loose measuring position, uncomprehensive treatment of test data, poor operation interface and so on. Compared with western developed countries, domestic test technology is relatively outdated. After studying the status quo of the above testing, this paper first analyzes the measurement method of the pump performance parameters of solid-liquid two-phase flow, and then through the integration of virtual instrument technology, data acquisition, data processing and other characteristics. Finally, a test bed for measuring the performance parameters of solid-liquid pump was constructed, and various factors affecting the performance parameters of solid-liquid two-phase flow pump were analyzed. In this paper, the medium characteristics of solid-liquid two-phase flow, the testing principle and method of solid-liquid pump are taken as the research object. The software of LabVIEW2012 virtual instrument based on NI is developed. According to the precision requirement of testing technology, the measurement technology is introduced. The technology of data acquisition and processing is integrated seamlessly with the technology of virtual instrument. A test bed for measuring the performance parameters of solid and liquid pump is designed and built. The purpose is to test the performance parameters of solid and liquid pump, to save the measurement data and to generate conclusions. In this paper, a solid-liquid two-phase flow test platform is designed and developed to test the solid-liquid two-phase flow with different medium concentration and particle size, and the previous research results of solid-liquid two-phase flow pump are combined. The effects of medium characteristics and pump structure parameters on the performance of solid-liquid pump are introduced.
【学位授予单位】：河北工程大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TH38;TP274

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