Primary battery type trace oxygen analyzer

Abstract

The invention discloses a primary battery type trace oxygen analyzer. An electrolytic cell is connected with a primary battery in series, and a detection gas circuit is in parallel connected with a bypass pressure regulator after entering into a channel; when the gas flows through a bypass gas circuit, a gas circuit is washed, stabilizing pressure needed by the detection gas circuit is produced, and the surplus gas in the bypass is discharged by a vent nozzle. The electrolytic cell is provided with a matched water storing and replenishing device, and a liquid level of an alkaline liquor in the electrolytic cell is controlled in a specified marked line. The primary battery and the electrolytic cell can regularly work for a long time. A gas outlet of the primary battery is connected with a micro-motion safety device in series, and the gas is exhausted from the gas outlet to prevent the alkali liquor from staining and damaging a detection gas circuit system due to unexpected backstreaming when the pressure at the gas outlet of the primary battery is excessive. With the adoption of the primary battery type trace oxygen analyzer, the trace oxygen in various industrial gas can be quickly detected, the industrial gas on line detection is carried out, multiple other trace oxygen analyzers are simultaneously detected when the primary battery type trace oxygen analyzer is used as an calibration instrument, and the oxygen standard gas in the range of 2-50PPMv is checked and compared; and the primary battery type trace oxygen analyzer has the effects of convenient and quick to use, and the comparison result is accurate and reliable.

Description

technical field [0001] The invention relates to an analysis and detection instrument for trace oxygen in industrial gas, in particular to a primary battery type trace oxygen analyzer. Background technique [0002] The original battery has a long history of detecting trace oxygen in gas. Its measurement and traceability foundation is very solid and its sensitivity is very high. Since the oxygen generated by electrolysis is directly used for calibration, the detection result is very accurate, which is difficult to compare with other methods. . Therefore, for a long time, it has been the most important method to detect trace oxygen in gas, and as a stereotyped instrument, it has been used for decades in many domestic fields since the 1950s. However, due to long-term major defects, such as the unreasonable structure of the primary battery, the air flow system is too simple, the water in the electrolyte and the lye in the pool is lost quickly during use, resulting in a short se...

AI Technical Summary

Problems solved by technology

[0005] This invention aims at the problems existing in the existing galvanic trace oxygen analyzer, and provides a long-term stable operation, which can be used for trace oxygen in various industrial gases Rapid detection, used for on-line detection of industrial gases, used to calibrate other trace oxygen analyzers, especially primary battery trace oxygen analyzers that can be used for calibration and verification of a large number of bottled oxygen standard gases

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