Boiler water quality detection device based on flow injection analysis and soft-measuring technology

Abstract

The invention relates to a boiler water quality detection device based on flow injection analysis and a soft-measuring technology. A distilled water container, a boiler water sample solution container and a standard acid solution container are respectively connected with a 16-way valve through a hose; the 16-way valve is orderly connected with a peristaltic pump, a 26-way valve, a conductivity electrode, a pH electrode, and a chloride ion electrode through the hose; the chloride ion electrode is connected with a liquid waste cup; and a central control system is connected with the 16-way valve, the peristaltic pump, the 26-way valve, the conductivity electrode, the pH electrode and the chloride ion electrode respectively. Signals of the conductivity electrode, the pH electrode and the chloride ion electrode in a flow injection analysis system are collected through a central data processing system to determine a plurality of water quality parameters such as water conductivity of the boiler, pH value, and chloride ion concentration; a voltage value signal can be measured by the boiler water quality detection device according to the pH electrode; and rapid and effective measurement on total alkalinity of boiler water can be achieved by the soft-measuring technology at the same time.

Description

technical field [0001] The invention relates to a water quality detection device, in particular to an on-line measurement device for boiler water conductivity, pH value, chloride ion concentration and boiler water total alkalinity, and belongs to the technical field of water quality detection. Background technique [0002] As the most important heat exchange device in industrial enterprises, boilers provide heat energy and steam necessary for the production process. The quality of water in the boiler water vapor system is one of the important factors affecting the safety of boilers and thermal equipment and energy consumption of enterprises. In order to ensure that the boiler water vapor circulation system does not suffer from corrosion, scaling and salt accumulation, the boiler water needs to undergo strict water quality monitoring to ensure that the boiler water quality meets national standards. The water quality of industrial boilers determines the operating status of the...

AI Technical Summary

Problems solved by technology

Most of these traditional manual titration methods need to continuously pipette boiler water samples for chemical quantitative analysis. These operations are not only tedious and time-consuming, but also more likely to introduce some human errors in the judgment of the titration end point.

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