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Online water quality detection and analysis device and method

An analysis device and analysis method technology, which is applied in the direction of analysis materials, instruments, etc., can solve the problems of poor consistency of distillate constant volume, easy to be affected by the environment, bumping and sucking back, etc., to achieve accurate volume constant, consistent volume, The effect of high degree of automation

Active Publication Date: 2015-05-06
FOCUSED PHOTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Pure manual method and semi-automatic method require operators to guard, which is time-consuming and labor-intensive;
[0004] 2. The automatic distillation method mostly uses a sealing device, which is prone to bumping and sucking back;
[0005] 3. The automatic distillation method mostly adopts the membrane distillation method and the gas stripping method, and at the same time adopts the weight constant volume method or time constant volume method. The consistency of the distillate constant volume is poor and it is easily affected by the environment

Method used

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  • Online water quality detection and analysis device and method
  • Online water quality detection and analysis device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see figure 1 , an online water quality analysis device, including a control module, a sampling module, and a flow path switching module, the online water quality analysis device further includes:

[0040] Distillation module, the distillation module includes a distillation tank, a cooler, a condenser and a condensation pipeline, the anti-riot boiling tube is arranged in the distillation tank, and the outlet of the condensation pipeline extends into the sample distillation tank, and is connected with the sample distillation tank non-sealed connection;

[0041] A detection module, the detection module includes a distillate tank, a light source and a detector, the distillate tank receives the distilled distillate, and simultaneously serves as a color tank and a detection tank; the light source and the detector judge the distillation end point, and the The distillate was constant volume.

[0042] The control module is used to control the injection of the sampling module, ...

Embodiment 2

[0072] see figure 2 , this embodiment provides an online water quality analysis device. The difference from Embodiment 1 is that the detection module of this embodiment includes two sets of light sources and detectors, wherein one set of light sources and detectors is used to judge the distillation end point, and the other set detects The instrument is used for the analysis of the analyte.

Embodiment 3

[0074] This embodiment is an application example of embodiment 1 in online analysis of volatile phenols, comprising the following steps:

[0075] (A1) The control module controls the sampling module and the flow path switching module to take the sample to be analyzed and the acid solution into the distillation tank of the distillation module;

[0076] (A2) The control module starts heating, the water sample is distilled into water vapor, and the water vapor becomes a liquid distillate through the condensation pipeline, which enters the distillation sample tank of the detection module for collection, and there is no absorption liquid in the distillation sample tank;

[0077] (A3) There is a light source (525nm light source) and a detector on the same horizontal line at both ends of the distillation tank, and the real-time detection signals A and Bi, when B i / A>2, and (B i -B i－1 ) / B i When <0.001, it is judged as the end point of distillation;

[0078] (A4) At the end of t...

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Abstract

The invention relates to an online water quality analysis device which comprises a control module, a sample injection module and a flow path switching module. The online water quality analysis device further comprises a distillation module and a detection module, wherein the distillation module comprises a distillation pot, a cooler, a condenser and a condensation pipeline; an anti-bumping pipe is arranged in the distillation pot; the outlet of the condensation pipeline stretches into a fraction tank and is in non-sealed connection with the fraction tank; the detection module comprises a fraction tank, a light source and a detector; the fraction tank is used for receiving the distilled distillate and serves as a color developing tank and a detection tank; the light source and the detector are used for judging the distillation end point and fixing the volume of the distillate. The invention also discloses an online water quality analysis method. The device disclosed by the invention has the advantages of simple structure, high degree of automation, high reliability and the like.

Description

technical field [0001] The invention relates to the field of water quality monitoring, in particular to a water quality integrated on-line quantitative distillation detection and analysis device and method. Background technique [0002] In the field of water quality monitoring, the determination of water quality volatile parameters is generally carried out after distillation. There are three kinds of distillation test methods currently used: pure manual method, semi-automatic method, and automatic distillation method. These methods have the following technical problems: [0003] 1. Pure manual method and semi-automatic method require operators to guard, which is time-consuming and labor-intensive; [0004] 2. The automatic distillation method mostly uses a sealing device, which is prone to bumping and sucking back; [0005] 3. The automatic distillation method mostly adopts the membrane distillation method and the gas stripping method, and at the same time adopts the weigh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N35/00
Inventor 唐小燕项光宏王俊
Owner FOCUSED PHOTONICS
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