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A method for measuring the flow rate of coal mine paste pipeline transportation

A technology for pipeline transportation and flow measurement, which is applied in the direction of volume/mass flow generated by mechanical effects, and the detection of fluid flow by measuring differential pressure.

Active Publication Date: 2018-01-02
HEBEI UNIV OF ENG
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  • Abstract
  • Description
  • Claims
  • 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.

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  • A method for measuring the flow rate of coal mine paste pipeline transportation
  • A method for measuring the flow rate of coal mine paste pipeline transportation
  • A method for measuring the flow rate of coal mine paste pipeline transportation

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Embodiment Construction

[0057] With the massive mining of coal mines by humans, most of them are hollow below the surface, and the coal mine 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 coal mine paste filling.

[0058] 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.

[0059] 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 pressu...

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Abstract

The invention relates to the technical field of measuring the flow rate of coal mine paste filling pipelines. When the paste is normally transported in the pipeline, strain gauges are pasted on two designated positions of the paste pipeline to be measured, and the two designated positions are respectively pasted with strain gauges. Paste the strain gauges in the four directions of up, down, left, and right respectively, and read the data after the display is stable, and obtain the average pressure value of the reading data of the four strain gauges at the two specified positions, and use the calculated two average pressure values ​​as The pressure value of the pipe section where the two designated positions are located, calculates the difference between the pressure values ​​of the pipe cross section at the two designated positions, that is, the pressure drop, and then calculates the flow rate 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 the radioactive particles placed in the coal mine 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 accura...

Claims

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Application Information

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