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Online rainfall monitoring system and online rainfall monitoring method

A monitoring system and rainwater technology, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of heavy calibration and maintenance workload, lack of cleaning of rainwater pipelines, heavy workload of manual detection of rainwater ions, etc., to achieve The effect of automatic cleaning

Active Publication Date: 2016-07-13
ZHEJIANG HENGDA INSTR CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The current method has the following shortcomings: 1. Rainwater is easily polluted during the process of transporting from the field to the laboratory, which affects the representativeness of rainwater samples; The operation skills are very high, and it is easy to introduce human error; 3. The manual detection of rainwater ions requires a lot of work and labor input; 4. The pH electrode lacks automatic calibration, and the calibration and maintenance workload is large; 5. The rainwater pipeline is not cleaned, and the sample greater impact

Method used

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  • Online rainfall monitoring system and online rainfall monitoring method

Examples

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Effect test

Embodiment 1

[0021] Example 1: Detection of all parameters in precipitation samples

[0022] Task requirements: realize automatic collection of precipitation samples, and automatically measure the pH, conductivity, water temperature, fluoride ion concentration, chloride ion concentration, nitrate ion concentration, sulfate ion concentration, sodium ion concentration, ammonium ion concentration, and Potassium ion concentration, magnesium ion concentration, calcium ion concentration.

[0023] 1. Automatic precipitation collection: when precipitation, 1 rain funnel automatically collects precipitation; when precipitation stops, 1 rain funnel stops collecting precipitation; rain funnel continues to collect precipitation in the environment according to this mode;

[0024] 2. Automatic transportation of precipitation samples: when the measurement time set by the system is reached, the 2 drain electric ball valve is opened, and the rain water sample in the rain funnel is drawn by the 5 sample pump, and ...

Embodiment 2

[0035] Example 2: Automatic calibration of pH electrode

[0036] Task description: Realize the three-point automatic calibration function of the pH electrode. When the automatic calibration task is started, the system performs the following steps:

[0037] 1. Extract pH1 calibration solution: switch the outlet three-way valve of the 17 syringe pump to the OUT end, switch the common end of the 18 multi-channel selector valve to connect with the 23pH calibration solution 1, and the 17 syringe pump draws 115ml of the 23pH calibration solution; the common of 18 The end is switched to connect with the 32pH measuring tank, and the 17 syringe pump delivers its internal liquid to the 32pH measuring tank.

[0038] 2. The 14pH electrode measures the pH1 calibration solution in the 32pH measuring tank to obtain the measurement signal;

[0039] 3. pH calibration pipeline cleaning: 17 syringe pump outlet three-way valve is switched to IN end, 17 syringe pump pumps 27 pure water 25ml; 17 syringe p...

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Abstract

The invention provides an online rainfall monitoring system and an online rainfall monitoring method. The online rainfall monitoring system comprises a rainwater collection and conveying module, an EC / pH measurement module, an ion detection sample processing module and a reagent extraction and ion detection sample injection module, wherein the rainwater collection and conveying module is capable of controlling rainwater to be respectively conveyed to the EC / pH measurement module and the ion detection sample processing module through switching six measurement switching valves. The online rainfall monitoring system and the online rainfall monitoring method have the beneficial effects of realizing an online automatic measurement function for ion components in a rainwater sample, realizing an automatic alignment function of pH electrodes and realizing an automatic cleaning function of a rainwater pipeline and a reagent pipeline of the system.

Description

Technical field [0001] The invention relates to an online precipitation monitoring system and method, and belongs to the technical field of environmental protection and detection devices. Background technique [0002] Acid rain is a major environmental problem facing my country, and precipitation monitoring is an important task in my country's environmental protection work. With the development of automation technology and analysis and detection technology in China, precipitation monitoring has experienced three stages: manual sampling monitoring, automatic sampling manual monitoring, and online monitoring. At present, the composition of online precipitation monitoring systems at home and abroad is relatively simple. [0003] The working principle of the above online monitoring system is explained: the rainwater in the rain funnel is pumped by the sample extraction peristaltic pump to the conductivity measuring tank and pH measuring tank, and the pH value and conductivity value in...

Claims

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Application Information

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IPC IPC(8): G01N27/00G01N27/02
CPCG01N27/00G01N27/02
Inventor 潘志东杨波柳世波吴程
Owner ZHEJIANG HENGDA INSTR CO LTD
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