Trace dissolved oxygen tester on-line calibrating device and calibration method thereof

A calibration device, dissolved oxygen technology, applied in the direction of material electrochemical variables, etc., to achieve the effect of convenient operation, accuracy assurance, and accurate and reliable calibration results

Active Publication Date: 2016-03-23
HKY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a new online calibration device and calibration method for a trace dissolved oxygen meter, thereby solving the technical problem of the accuracy and reliability of the measurement results of a trace dissolved oxygen meter

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  • Trace dissolved oxygen tester on-line calibrating device and calibration method thereof
  • Trace dissolved oxygen tester on-line calibrating device and calibration method thereof
  • Trace dissolved oxygen tester on-line calibrating device and calibration method thereof

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 As shown, it is a block diagram of the working principle of the present invention. The calibration idea of ​​the trace dissolved oxygen meter is: the on-site sample water passes through the fiber filter to remove suspended solids in the water, and the on-site sample water from which suspended solids are removed passes through the flow control system and flows into the Faraday electrolysis device , to obtain the electrolysis efficiency in this sample water and the standard trace dissolved oxygen water used for calibration. This standard trace dissolved oxygen water passes through the measured trace dissolved oxygen electrode and the compared trace dissolved oxygen detector to calibrate it, wherein the control device The flow control system, constant flow source and trace dissolved oxygen measuring instrument in the control syste...

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Abstract

The invention relates to a trace dissolved oxygen tester on-line calibrating device and a calibration method thereof. The method is based on the Faraday's law of electrolysis, and the device comprises a fiber filter, a flow control system, a Faraday electrolysis device, dissolved oxygen measurement equipment and a control device. The trace dissolved oxygen tester on-line calibrating device and the calibration method thereof are reliable in design theory, simple and convenient in method and great in operability. According to the trace dissolved oxygen tester on-line calibrating device and the calibration method thereof, field sample water is used, the process of preparing ultra-pure water is omitted, and the process of taking out an oxygen electrode is avoided through on-line calibration. Water electrolysis efficiency is measured on line, so that electrolysis efficiency variation caused by water sample variation and instability of an electrode can be tracked, and the calibration result can be more accurate and reliable. Calculation of electrolysis efficiency of the field sample water is applied to a high precision gauge pressure sensor, and accuracy of electrolysis efficiency calculation is guaranteed.

Description

technical field [0001] The invention relates to an on-line calibration device for a trace dissolved oxygen meter and a calibration method thereof, in particular to an on-line calibration device for a trace dissolved oxygen meter and an accurate and reliable calibration method for on-line calibration of values ​​measured by a trace dissolved oxygen meter. Background technique [0002] Trace amounts of dissolved oxygen in water can corrode boilers in power plants, threatening their safe operation. At present, the determination of trace dissolved oxygen content in water has been changed from artificial colorimetry to trace dissolved oxygen meter determination. During the use of the online trace dissolved oxygen meter, it must be calibrated at regular intervals to ensure the accuracy of the measurement results. At present, common calibration methods include air calibration technology, air-saturated water calibration technology and chemical method calibration technology. Among ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26
CPCG01N27/26
Inventor 刘海波边宝丽
Owner HKY TECH
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