High-precision water quality online automatic monitor

Abstract

The invention discloses a high-precision water quality online automatic monitor, which comprises a quantifying system, a sampling system, a reaction system and a control system; the quantifying systemcomprises a measuring glass tube, and the upper part of the measuring glass tube is provided with an ultrasound wave sensor; the sampling system comprises a peristaltic pump and an eight-way valve which are connected through a pipeline; the reaction system comprises a digestion device and a light emitting and receiving device, the digestion device comprises a digestion pipe and a PT100 sensor; both ends of the digestion pipe are provided with electromagnetic valves, and the electromagnetic valves are connected with the digestion pipe; the light emitting and receiving device comprises a lightemitter and a light receiver which are arranged at both sides of the digestion pipe; the control system comprises a single chip, a memory and a display module. Compared with the prior art, the fluid in the measuring glass pipe and the rest fluid content in the reagent bottle can be exactly measured through the ultrasound wave sensor and a distributed film pressure sensor; the high-precision waterquality online automatic monitor has the advantages of being strong in multifunctional expanding property, high in sensitivity and low in cost.

Description

technical field [0001] The invention relates to the technical field of water quality monitoring instruments, in particular to a high-precision online automatic water quality monitor. Background technique [0002] At present, domestic water quality online automatic monitors are mainly divided into electrode method and spectrophotometric method according to different analysis methods. Spectrophotometry is a method for qualitative and quantitative analysis of the substance by measuring the absorbance or luminous intensity of the measured substance at a specific wavelength or within a certain wavelength range. In a spectrophotometer, when light of different wavelengths is irradiated continuously to a sample solution of a certain concentration, the absorption intensity corresponding to different wavelengths can be obtained. If the wavelength (λ) is taken as the abscissa and the absorption intensity (A) is taken as the ordinate, the absorption spectrum curve of the substance can ...

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Problems solved by technology

However, the application light area of ​​spectrophotometry includes ultraviolet light area, visible light area and infrared light area, but these methods or operation steps are tedious and cumbersome, or there are many interference factors, or need to use relatively expensive large-scale analytical instruments, and it is difficult for operators. High professional skill requirements, therefore, most of them can only be completed in the laboratory, which cannot meet the technical requirements of on-site and rapid online detection

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