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Paste pipeline transportation flow measuring method

A technology for flow measurement and pipeline transportation, which is applied in the field of measurement of coal mine paste filling pipeline transportation flow, and can solve problems such as difficult operation, unsuitable for industrial applications, and restrictions on the application of radioactive particles

Active Publication Date: 2015-10-28
HEBEI UNIV OF ENG
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  • Abstract
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  • Application Information

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Problems solved by technology

The test results of this method are relatively accurate, but the application of radioactive particles is limited, the structure of the test device is complicated, the cost is too high, and the operation is difficult, so it is not suitable for general industrial applications.

Method used

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  • Paste pipeline transportation flow measuring method
  • Paste pipeline transportation flow measuring method
  • Paste pipeline transportation flow measuring method

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Embodiment Construction

[0050] With the massive mining of coal mines by humans, most of the ground below the surface is hollow, and the paste filling process has emerged. As for the measurement of the flow rate of the coal mine paste filling pipeline, the accuracy of the measurement results is related to the normal operation of the filling, and plays an important role in ensuring the normal operation of the paste filling.

[0051] With the development of modern science and technology, the requirements of enterprises for the degree of automatic control of the production system are constantly increasing. best operating plan.

[0052] Since it is necessary to detect the pressure difference between the two cross-sections of the pipeline, it is necessary to paste the strain gauges on the two positions of the measuring pipeline, and respectively paste them in the four directions of the upper, lower, left, and right sides of the two positions, and the obtained data are averaged as The pressure value for th...

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Abstract

The invention relates to the technical field of measurement of coal mine paste filling pipeline transportation flow. When paste is transported in the pipeline normally, strain gauges are pasted on two specific locations of the paste pipeline which needs to be measured, strain gauges are pasted on the upper part, the lower part, the left part and the right part of each of the two specific locations, when readings are stable, data are read out, the average pressure value of the read data of the four strain gauges of each of the two specific locations is obtained, the calculated two average pressure values serve as the pressure values of pipeline cross sections where the two specific locations are arranged, the difference value, i.e., the pressure drop, of the pressure values of the pipeline cross sections of the two specific locations is calculated, and the flow is calculated through the pressure drop.

Description

technical field [0001] The invention belongs to the technical field of measuring the delivery flow rate of a coal mine paste filling pipeline. Background technique [0002] Currently being used in coal mine paste filling pipeline flow measurement method is α-ray measurement method. The method obtains the pipeline delivery flow rate by detecting radioactive particles placed in the paste delivery pipeline. The test results of this method are relatively accurate, but the application of radioactive particles is limited, the test device has a complex structure, high cost, and difficult operation, so it is not suitable for general industrial applications. Contents of the invention [0003] The method of measuring the flow rate of the pipeline in the prior art has high requirements on the conditions of the detection site; sometimes it is difficult to install the measuring instruments and meters in accordance with the specifications and standards, so that the accuracy of the meas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/34
Inventor 王桂梅刘杰辉赵伟民王清强
Owner HEBEI UNIV OF ENG
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