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Experimental Investigation Of Incipient Motion Of Static Sutff Canister In Pipeling Hydraulic Transportation

Posted on:2008-08-15Degree:MasterType:Thesis
Country:ChinaCandidate:B X QuanFull Text:PDF
GTID:2132360242459026Subject:Hydraulics and river dynamics
Abstract/Summary:PDF Full Text Request
The pipeline transportation as a transport mode, with the railway transportation, the highway transportation, the air transportation and the water transportation are called five big transport modes together.As society advances, Traditional transport methods can not meet the social development needs, Therefore, Many countries are studying the piped system to find a solution to the development of modern society brought about by the enormous pressure of transport methods. As a newly-developed technology, the piped in worldwide production has been widely used in, But overall it is the stage of development, Many of the theories and understanding of technical issues have yet to achieve reunification. Therefore research piped character for the settlement of issues of great significance transport.This paper bases on nationality naturalness science fund item, tube-contained raw material hydraulic transportation, The fund number is 50579044 .Study the question of incipient motion of static stuff canister . on an experimental basis, Establishment of a system of HCP ( Pn eumatic Capsule Pipeline) , Then this article emphatically analyzes the motion of static in pipeline hydraulic transportation of stuff canister. Following is the major content of the paper:Study the hydraulic characteristic of tube-contained raw material hydraulic transportation. In the essence, the main problem is that it has certain interior to move the boundary ring-like slit spiral rotational fluid motion characteristic question. Revolves this question, we will carry on the research from the following several aspects, analyzes the motion of static stuff canisterin different load condition. Because the pipeline transportation the material the bulk specific gravity to be different, the same volume pipeline stuff canisterload quantity is different. Therefore, this article has drawn up the different load quantity, through experiment, under analysis different load quantity condition incipient motion velocity, as well as critical time starting ring-like slit spiral flow field speed of flow distribution, pressure distribution, energy consumption influence factor and characteristic.On the basis of experimental data, analysis under conditions different load weight and different geometry parameter case, (?)ncipient motion velocity and pressure distribution and energy consumption .Following is the major outcome and examination means of the paper:1. By the strength analysis of stuff canister, the text expatiates the Incipient motion mechanism of stuff canisterand the infection for water flow and the emergence question .2. On the basis of a great deal experimental data, analysis and simulate curve makes that in the same weight and length the larger diameter tube-contained raw makes Incipient motion easier .And that in the same weight and diameter the larger length tube-contained raw makes Incipient motion easier .3. By best difference analysis and alternation effect of correctitude across experimental, we can educe that effect Incipient motion of tube-contained raw bigger is diameter ,the second is length, the last is weight under all kinds of factor of effect (?)ncipient motion of tube-contained raw .4. By dimension analysis andπtheorem, principium deduce Incipient motion velocity formulary of tube-contained raw under the certain affect factor.5. On the basis of a great deal experimental data, we can educe pressure distribution seem undee distribution under text segment of pipeline.6. By the submerge flow of pressure pipeline, simulate flux and hydraulic loss curve and under different geometry parameter case On the basis of a great deal experimental data of tube-contained raw incipient motion, account hydraulic loss in pipeline under certain instance.Experimental results show a certain reference value for the further study of the theory of. That will reference to the project ameliorated design art and disquisition and improve pipeline transportation quality later. It will be great theoretical value.
Keywords/Search Tags:stuff canister, hydraulic transportation, incipient motion velocity, pressure distribution, hydraulic loss
PDF Full Text Request
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