Conductivity electrode flowing and mixing measuring systems
A conductivity electrode and measurement system technology, applied in the direction of material resistance, etc., can solve the problems of not meeting the fast and continuous requirements of flow mixing measurement, inconvenient installation of standard electrodes, affecting measurement results, etc., to achieve easy replacement and expansion, simple structure, Ease of installation and use
Active Publication Date: 2011-11-09
NUCLEAR POWER INSTITUTE OF CHINA
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Problems solved by technology
[0003] At present, the equipment for measuring concentration is a single conductivity electrode (such as a conductivity meter) at the instrument level. If all similar equipment is used for flow mixing measurement, not only the economic cost is too high, but also the standard electrode is not easy to install in the flow field, and cannot Meet the fast and continuous requirements of flow mixing measurement
In addition, during the measurement process, temperature changes will also affect the concentration of the electrolyte in the flow field, affecting the measurement results
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[0017] The flow and mixing measurement system of the conductivity electrode according to the present invention will be further described below in conjunction with the accompanying drawings.
[0018] Such as figure 1 As shown, the conductivity electrode flow mixing measurement system of the present invention includes a plurality of conductivity electrodes, a plurality of temperature probes, a data acquisition system, and a plurality of conductivity electrodes, a plurality of temperature probes and a data acquisition system are respectively connected measurement transmission system. The measurement transmission system includes conductance electrode measurement channels consistent with the number of conductance electrodes and temperature measurement channels consistent with the number of temperature probes.
[0019] Such as figure 2 As shown, the conductance electrode includes two platinum sheets 1 embedded in the glass protective sheath 2 in parallel and respectively connecte...
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The invention relates to a conductance electrode flow mixed measuring system, comprising a plurality of conductance electrodes, a plurality of temperature probes and a data acquisition system; wherein, the system also comprises a measuring and transmitting system which is respectively connected with the plurality of the conductance electrodes, the plurality of the temperature probes and the data acquisition system; the measuring and transmitting system comprises conductance electrode measuring channels which have the same quantity with the conductance electrodes, and temperature measuring channels which have the same quantity with the temperature probes. The conductance electrode flow mixing measuring system of the invention can obtain the accurate change of each measuring point in a flowfield continuously and fast, has convenient installation of the conductance electrodes and can eliminate the influence of the change of the temperature to the concentration of electrolyte in the flowfield.
Description
technical field [0001] The invention relates to a fluid concentration measuring device, in particular to a flow-mixing measuring system of a conductivity electrode. Background technique [0002] Flow mixing measurement requires the distinction and precise ratio measurement of different components in the fluid. In general, the chemical tracer method is used, and the concentration of the chemical tracer is measured by a conductivity electrode and converted into a flow field mixing factor. When the temperature is constant, the resistance R (Ω) between the electrodes in the dielectric solution is proportional to the distance L (cm) between the electrodes, and is proportional to the area A (cm) of the electrodes 2 ) is inversely proportional, that is, R=ρL / A, where ρ is the conductivity, and the unit is Ω·cm. The other two quantities L and A in the formula can be determined after the electrode is made, so that each electrode can be measured Fluid concentration changes at a certa...
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IPC IPC(8): G01N27/06
Inventor 尹涛王盛杨来生丁艺
Owner NUCLEAR POWER INSTITUTE OF CHINA