Water quality detection pipeline system and water quality detection method

Abstract

The invention discloses a water quality detection pipeline system and method. The water quality detection pipeline system comprises a multichannel valve, wherein one channel of the multichannel valve is connected with a sample, another channel of the multichannel valve is connected with a reaction tank, and at least one channel of the multichannel valve is connected with reagents; one end of a quantitative sampling device is connected with carrier liquid, and the other end of the quantitative sampling device is connected with one channel of the multichannel valve; the input end and the output end of the quantitative sampling device can be exchanged; a detection device used for detecting the components of reaction liquid in the reaction tank is arranged at the reaction tank. According to the water quality detection pipeline system, one channel is connected with the atmosphere, and a small amount of air enters a pipeline within the specific time period by process control, so that quantification is not influenced, and the two sections of liquid generating cross contamination can be separated from each other; therefore, the reagent consumption is greatly reduced in the testing process, and the problem that the measurement is influenced by the cross contamination between the regents can be fundamentally solved. In the aspect of waste discharge way, an air pump cooperates with a three-way valve, and the waste liquid can be directly discharged without passing through the multichannel electromagnetic valve, so that the problem of cross contamination caused by the waste liquid can be also thoroughly solved.

Description

technical field [0001] The invention relates to a water quality detection pipeline system and a water quality detection method. Background technique [0002] In the water quality testing industry, most testing instruments consume a lot of reagents. However, the reagents used in the process of testing certain parameters are highly toxic and polluted, so the demand for water quality testing instruments with low reagent consumption is imminent. The actual consumption of detection instruments is large, and the fundamental reason is that the principle and method of the liquid circuit cannot effectively solve the problems of cross-contamination between reagents and cross-contamination between waste liquid and reagents. Most instruments use multi-channel solenoid valves or multi-channel rotary valves for this purpose. However, the biggest advantage of this method is that it reduces the overall volume of the instrument, the complexity of pipeline installation and software process ...

AI Technical Summary

Problems solved by technology

Although this method can effectively solve the problem of cross-contamination, the corresponding consumption of reagents is also very considerable

Images