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Differential pressure type density measurer and measuring method

A technology of density measurement and measurement method, which is applied in the determination of specific gravity by measuring pressure difference, which can solve the problems of large fluctuation of measurement data, great harm, and high price of radiation densitometers, so as to solve the problems of environmental pollution, low cost, and measurement. The effect of data stabilization

Inactive Publication Date: 2010-02-10
HUNAN UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0003] The radiation density meter must be calibrated according to different slurries before use, and the measurement data fluctuates greatly
In addition, the price of the radiation density meter is relatively high, which is very harmful to the human body.

Method used

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  • Differential pressure type density measurer and measuring method

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Embodiment Construction

[0029] The present invention will be further described below in combination with specific embodiments and accompanying drawings.

[0030] Such as figure 1 As shown, the differential pressure density measuring device described in this embodiment includes a horizontal pipeline differential pressure transmitter 1 installed in the horizontal pipeline test section and a vertical pipeline differential pressure transmitter 2 installed in the vertical pipeline test section. Both the signal output ends of the differential pressure transmitter 1 and the vertical pipeline differential pressure transmitter 2 are connected to the computer 4 through the programmable logic controller 3, and the computer 4 collects the output current mA of the two differential pressure transmitters online.

[0031] According to the hydraulic measurement requirements, the geometric dimensions of the differential pressure density measuring device and the installation dimensions of the differential pressure tran...

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Abstract

The invention relates to a solid-liquid slurry density measurer and a measuring method. The differential pressure type density measurer comprise a horizontal pipeline differential pressure transmittermounted in a horizontal pipeline test segment and a vertical pipeline differential pressure transmitter mounted in a vertical pipeline test segment. The signal output terminals of the horizontal pipeline differential pressure transmitter and the vertical pipeline differential pressure transmitter are accessed to a computer through a programmable logic controller (PLC). The differential pressure type density measurer and the measuring method can realize accurate and reliable measurement, and the measurer has simple structure, convenient manufacture, installation and maintenance, low cost and environment protection.

Description

technical field [0001] The invention relates to a device and method for measuring the density of a solid-liquid two-phase flow slurry, which can be widely used in metallurgy, mining, coal, chemical industry and other fields involving solid-liquid two-phase flow. Background technique [0002] At present, the density measurement of two-phase fluid mainly adopts radiation densitometer. The working principle of the radiation density meter is to install a radioactive source on one side of the vertical conveying pipe section, and install a detector for receiving radiation on the opposite side. When the radiation passes through the pipe wall and slurry, it is partially absorbed and attenuated. The greater the density of the slurry, the greater the density of the slurry. The more rays are absorbed, the amount of rays absorbed by the medium has an exponential absorption law with the density of the measured medium. The rest of the rays are converted into electricity through scintillat...

Claims

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Application Information

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IPC IPC(8): G01N9/26
Inventor 邹伟生袁海燕罗绍卓陈爱黎刘春嵘
Owner HUNAN UNIV
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