Throwing-into type fluorescence method water quality on-line analyzer

Abstract

The invention relates to a throwing-into type fluorescence method water quality on-line analyzer, and belongs to the technical field of water quality monitoring device. The analyzer is used for water body in situ detection. A technical scheme of the analyzer is characterized in that: the analyzer comprises a sealed metal housing and a detection section; the metal housing comprises two chambers; the detection section is arranged in one chamber; the housing wall of the other chamber is provided with a plurality of drain holes to communicate with the outside environment; two light-through holes are arranged on the wall between the two chambers; the light-through holes are provided with sealed quartz lenses; axial lines of the two light-through holes intersect and form a angle of 90 DEG; ultraviolet light source of the detection section, a lens and an excitation filter are arranged on the axial line of the one light-through hole, an emission filter is arranged on the axial line of the other light-through hole; the emission filter is connected with a photoelectric detector; a signal treatment and control unit is respectively connected with the ultraviolet light source and the photoelectric detector. The analyzer provided by the present invention has characteristics of small volume, light weight, simple and reasonable structure, easy use, rapid and exact detection and waterproof design, and can be thrown into the water to perform the in situ detection for the water body.

Description

technical field [0001] The invention relates to a fluorescence method water quality online analyzer capable of monitoring the contents of chlorophyll a and mineral oil in water, belonging to the technical field of water quality monitoring equipment. Background technique [0002] Eutrophication of water body is a phenomenon caused by the increase of nutrients such as nitrogen and phosphorus in water body and the increase of phytoplankton production. Chlorophyll in water is the most direct and effective method to evaluate the eutrophication degree of water body, and it is an important index reflecting the primary productivity of water body. The technical specification for water quality monitoring stipulates that chlorophyll a is a routine monitoring item in the water quality monitoring of lakes, reservoirs and other water bodies. [0003] The traditional determination of chlorophyll in water often uses spectrophotometry, which is generally carried out in a laboratory. During...

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Problems solved by technology

In this way, due to the special properties of mineral oil, the content has changed when the water sample is collected, and the mineral oil content in water cannot be accurately measured

During the measurement process, most of the instruments need chemical reagents, causing secondary pollution to the environment

Only a few foreign manufacturers produce on-line oil-in-water analyzers. However, due to the complexity of the water quality environment and oil types, the oil quality at home and abroad is very different. As a result, such products are not suitable for the detection of oil content in water in domestic water quality environments.

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