Fluid mechanics experimental device

An experimental device and fluid mechanics technology, applied in teaching models, educational appliances, instruments, etc., can solve problems such as time-consuming maintenance, long time to read experimental data, and inability to meet the experimental conditions of curved or coiled pipes, etc. Achieve the effect of improving visibility and compatibility, solving single experimental object, and convenient and quick assembly process

Inactive Publication Date: 2019-01-22
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Even so, the following problems still exist in the traditional fluid mechanics experimental equipment: 1) the experimental object is single, and the existing experimental devices are all for the research of the fluid in the long straight pipeline, but in the field of practical application, the curved or coiled Pipelines are widely used, but there is no fluid mechanics experimental equipment for bending or winding pipes in the existing fluid mechanics experimental equipment
2) The experimental function is single, a single experimental device can only be used for one experiment, the efficiency of the experiment is very low, and it takes a lot of time to prepare for the experiment and maintain the equipment
3) The measurement accuracy is low. Pitot tubes and pressure tubes are commonly used in traditional fluid mechanics experiments to measure flow and pressure. Data reading takes a lot of time and the accuracy of the read data is low
4) The degree of automation is low. The reading of traditional fluid mechanics experiment data relies on manual transcription. During the experiment, it is often necessary to record the experimental data multiple times to obtain the average value to ensure the accuracy of the experimental data.
However, this patent only publishes the hydrodynamic experiments for straight pipes, which cannot meet the experimental conditions of curved or coiled pipes; and the experimental device uses differential pressure tubes and rotameters to measure data, and the experimental data takes a long time to read. Experiments are less automated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]A kind of fluid mechanics experimental device 1, its structure is as figure 1 and figure 2 As shown, it includes a test bench 11, a test bench support, a water supply tank system 12, a measuring pipeline system 13, a water collection tank system 14 and a collection and return system 15, and the test bench 11 is fixedly connected to the test bench support.

[0040] The water supply tank system 12 is placed on the test bench 11, and its structure is as follows: image 3 As shown, the internal components are drawn with dotted lines; the water supply tank system 12 includes a water supply tank 121, an overflow partition 122, a baffle 125, a water supply pipe 124, an overflow return pipe 123, a water outlet pipe 126, a water tank cover 129, colored The water box 128 and the colored water pipe 127; the water supply tank 121 is placed on the test bench 11; the overflow partition 122 and the divider 125 are respectively fixed in the water supply tank 121, and the height of the...

Embodiment 2

[0049] The difference between this embodiment and the connection method of Embodiment 1 is that the position of the pipe fixing bracket 132 and the test bench 11 can be adjusted. The fixing bracket 132 is slidably connected to the guide rail, and is fixed on the guide rail through a quick release buckle.

[0050] When it is necessary to adjust the installation position of the pipe fixing bracket 132, open the quick release buckle, move the pipe fixing bracket 132 along the guide rail, adjust the pipe fixing bracket 132 to a suitable position according to the shape and position of the experimental tube to be tested, and put the quick release When the buckle is closed and fastened, the pipeline fixing bracket 132 will be fixed on the guide rail, so that the position of the pipeline fixing bracket 132 relative to the test bench 11 is fixed.

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Abstract

The invention relates to a fluid mechanics experimental device, which comprises an experimental platform, an experimental platform bracket, a water supply tank system, a measuring pipeline system, a water collecting tank system and a collection reflux system. The measuring pipeline system comprises an experimental pipe, pressure gauges, a flow adjusting valve and a pipeline fixing bracket; the experimental tube is mounted on the experimental platform through the pipeline fixing bracket; the pipeline fixing bracket is mounted on the experimental platform in a position adjustable mode; the experimental pipe comprises a straight pipe and a measuring pipe; the straight pipe communicates with the water supply tank system and is detachably connected with the measuring pipe; the two or more pressure gauges are arranged on the experimental pipe and are located on pipelines on the two sides of the measuring pipe correspondingly; and the flow adjusting valve is arranged on the straight pipe. Compared with the prior art, the fluid mechanics experimental device has the advantages that the measuring pipeline is convenient to replace, acquisition of experimental data is accurate and efficient, the using process is simple, safe and reliable, and the collection reflux system is arranged, so that waste consumption is reduced.

Description

technical field [0001] The invention relates to an experimental equipment device, in particular to a fluid mechanics experimental device. Background technique [0002] Scientific research and practical teaching are inseparable from experiments. The acquisition of parameters, the verification of theories, the detection of results, etc. all need to be done through experiments. As a large category of disciplines in science, the research content of fluid mechanics is very extensive and has certain research difficulties. It is often necessary to obtain some physical properties of fluids, so it is necessary to obtain these data through experiments. Among the disciplines of universities , the course of fluid mechanics needs to study some classic theories of fluid mechanics. Doing experiments can allow students to obtain experimental data and verify the use of theories under their own operations. It is an efficient practical teaching method and is used by most schools, etc. Promote...

Claims

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Application Information

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IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 强海燕李万莉汪晏然李官原
Owner TONGJI UNIV
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