Oxygen analyzer with trend and sensor self-protection function in air separation industry

An oxygen analyzer and sensor technology, applied in the field of oxygen analyzers, can solve the problems of large fluctuation of measurement data, low measurement accuracy, damage to the sensor of the oxygen analyzer, etc. effect of life

Active Publication Date: 2019-04-16
HANDAN IRON & STEEL GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic oxygen analyzers can only display simply, without trend query function, and have shortcomings such as low measurement accuracy and large fluctuations in measurement data affected by ambient temperature. When the oxygen generator fails, the oxygen content will be s...

Method used

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  • Oxygen analyzer with trend and sensor self-protection function in air separation industry
  • Oxygen analyzer with trend and sensor self-protection function in air separation industry

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the examples.

[0033] The invention discloses an oxygen analyzer with trend and sensor self-protection functions in the air separation industry, see figure 1 , figure 2 , including a data processing unit, and a gas circuit unit connected to the data processing unit, a sensor MV signal processing unit, a power supply unit, a display storage operation unit 4, and a signal output unit, wherein:

[0034] The data processing unit includes a CPU processing chip, and also includes a total power supply module, a secondary power supply voltage stabilization module connected with the total power supply module and supplying power to the CPU processing chip, and an isolated power supply module connected with the signal output unit and supplying power to the signal output unit.

[0035] The gas circuit unit includes a four-way valve 21 connected to the measuring gas, zero point gas and span gas, a...

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Abstract

The invention relates to an oxygen analyzer with a trend and sensor self-protection function in the air separation industry. The oxygen analyzer comprises a data processing unit, a gas path unit, a sensor MV signal processing unit, a sensor MV signal processing unit, a power supply unit, a display storage operation unit, a signal output unit and an alarm unit, wherein the gas path unit, the sensorMV signal processing unit, the sensor MV signal processing unit, the power supply unit, the display storage operation unit, the signal output unit and the alarm unit are electrically connected with the data processing unit. According to the oxygen analyzer, the requirements of a user for inquiring the historical trend and carrying out signal remote transmission on the site can be met, data queryof 12 months can be stored, and meanwhile, when the oxygen content of the measured gas exceeds a set value, the measuring gas entering the oxygen sensor can be automatically cut off, self-protection is realized, and the oxygen sensor is prevented from being damaged. The service life of the sensor is prolonged.

Description

technical field [0001] This patent application belongs to the technical field of on-line analytical instruments for oxygen percentage detection in air separation systems, in particular to an oxygen analyzer with trend and sensor self-protection functions in the air separation industry. Background technique [0002] Air separation oxygen generator (hereinafter referred to as oxygen generator), during the production process, it is necessary to conduct online measurement of the percentage oxygen content of gas media such as argon fraction, oxygen content in air, and nitrogen and oxygen content in polluted air, and it is required to be able to check it at the equipment site Historical data, forming trend graphs, and comparative analysis of changes in oxygen content, so as to judge the argon working condition and nitrogen working condition of the oxygen generator, so as to guide the operator to adjust the operation. It is the eyes of the oxygen generator and needs to reflect the p...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCG01N33/0036
Inventor 仝献华高颖赵玲陈和林李海生
Owner HANDAN IRON & STEEL GROUP
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