Optical cavity for testing sewage transmission spectrum

Abstract

The invention discloses an optical cavity for testing a sewage transmission spectrum. The optical cavity for testing the sewage transmission spectrum comprises a cavity body jacket, optical cavities, sample tanks and a constant-temperature water bath box, wherein an optical cavity a is formed in one side in the cavity body jacket; a cuvette cover a is mounted on the top end of the optical cavity a and is communicated with the top end of a sample tank a; a circulation water pump a is mounted on the tail end of a water injection pipeline a above the sample tank a; the bottom end of the sample tank a is communicated with the bottom end of the optical cavity a; the cavity body jacket is communicated with the constant-temperature water bath box; a water injection pump of a circulation water bath is arranged at the tail end of a water injection pipe of the jacket; an optical cavity b is formed in the other side, opposite to the optical cavity a, in the cavity body jacket; a cuvette cover b is mounted on the top end of the optical cavity b and is communicated with the top end of a sample tank b; a circulation water pump b is mounted on the tail end of a water injection pipeline b above the sample tank b; the bottom end of the sample tank b is communicated with the bottom end of the optical cavity b; a water discharging pipe of the jacket is communicated with the cavity body jacket. The optical cavity for testing the sewage transmission spectrum can be used for directly controlling the change of influence factors during measurement and has the advantages of being simple in structure, convenient to operate, high in condition controllability and the like, and materials are easily available.

Description

Technical field: [0001] The invention specifically relates to an optical cavity for testing sewage transmission spectrum. Background technique: [0002] The cuvette is a supporting facility for the spectrophotometer to measure the concentration of the liquid, and the concentration of the liquid is obtained by measuring the absorbance and transmittance of the liquid. Common cuvettes are glass cuvettes and quartz cuvettes. The applicable wavelength range of optical glass: 320nm-2500nm; the applicable wavelength range of ultraviolet quartz: 190nm-2500nm; the applicable wavelength range of infrared quartz: 220nm-3500nm. It is widely used in quantitative measurement process. [0003] At present, the cuvettes widely used in laboratories are ordinary glass cuvettes and quartz cuvettes, which can only realize the measurement process of static samples at room temperature, and the relevant influencing factors cannot be changed during the experiment. New designs of constant tempera...

AI Technical Summary

Problems solved by technology

[0003] At present, the cuvettes widely used in laboratories are ordinary glass cuvettes and quartz cuvettes, which can only measure static samples at room temperature The relevant influencing factors cannot be changed during the experiment

New designs of constant temperature cuvettes that already exist at this stage, such as the new design of the constant temperature jacket of the cuvette (Zhao Yanping. New design of the constant temperature jacket of the cuvette [J]. Chemical Education, 2004, (11): 52-53 ); some patents, such as a cuvette constant temperature device with a patent number of 201320850003.5, which uses a constant temperature water bath to maintain a constant temperature, but the heat exchange is not sufficient because the cuvette is not directly in contact with the water bath; the patent number is 200920102898.5 has a constant temperature function The laboratory cuvette device has disadvantages such as the plastic material used in the outer layer of the cuvette has a low thermal deformation temperature and the cuvette is heated unevenly.

Images