Moisture Content Of Oil-line Measurement System

With the rapid development of science and technology, multi-phase fluid systems play more and more important roles in the national economy and people's lives and the two-phase fluid systems are most popular in those multi-phase fluid systems.To meet the requirements of engineering and after reviewing the previous results, the author deeply researches measurement of water ratio in oil-water two phases system based on the principles to analyze two phases fluid. With present mature computer technology a system to measure water ratio in oil-water two phases is successfully developed and the procedure is worth introducing here according to the data from relative experiments.Following are included in this thesis:1. A brief introduction to the history, presentation and significance of measurement of water ratio in oil-water two phases system2. A review of concepts, basic equitation and analytic models of two phases fluid.3. To have studied structures of oil-water two phases system- flow patterns according to different fluid conditions. For distinguished difference of viscosity between oil and water, their fluid structure featured different flowing characters. According to different flow patterns, a new transferring rule for oil-water two phases system flowing model in pipes is built in including the stability rule for stratified flow patterns and transferring border and anti-phase border for deconcentrating patterns and mixture patterns.4. To have researched the dielectric constant changing rule of oil-water mixture when the ratio of oil-water changing and the design principle and mechanical design of capacitor sensor with dielectric constant changing.5. To give the design procedure including hardware, software and supervision system with test results and error analysis.6. To show an application case in the lubrication part of a high-speed steel rolling system including installation and testing.7. To summary deficiencies of this measurement system and suggestion to improve it.The results show that this measurement system is steady and reliable and its precision can meet the requirement of engineering application. It has real application worth in industry.