Multi-parameter water quality online monitoring integrated system and monitoring method thereof
An integrated system, multi-parameter technology, applied in the field of water quality online monitoring, can solve problems such as large system footprint
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Embodiment 1
[0039] A kind of multi-parameter water quality on-line monitoring integrated system of this embodiment, such as figure 1 As shown, it includes an external unit 1, which is a double-layer thermal insulation structure. A chemical reaction box 11, a reagent box 12, and an electrode box 13 are arranged in sequence from the bottom, and a pump valve integrated module 2, a multi-way valve integrated module 4 and a digestion integrated module 5 are installed in the chemical reaction box 11, and the multi-way valve The integrated module 4 is communicated with the integrated digestion module 5 through the injection tube 51; the pump valve integrated module 2 is communicated with the multi-way valve integrated module 4 through the reagent quantitative loop 3, and the reagent quantitative loop 3 is a ring structure, including The liquid port 31 and the liquid outlet 32, the internal capacity of the ring structure of the reagent quantitative loop 3 is 5mL, so as to accurately control the c...
Embodiment 2
[0042] A kind of multi-parameter water quality on-line monitoring integrated system of this embodiment, the basic structure is the same as embodiment 1, and the differences and improvements are as follows: figure 2 As shown, the multi-way valve integrated module 4 is a double-row multi-pipeline structure, on which air pipes 40, acid solution pipes 41, alkaline solution pipes 42, oxidant pipes 43, reducing agent pipes 44, and sampling water pipes are respectively installed. 47. Each pipeline is controlled by its own solenoid valve. By controlling the solenoid valves on each pipeline, acidic solution, alkaline solution, oxidant tube, reducing agent tube, and sample water are sequentially drawn from the reagent box 12 into the reagent quantitative loop. 3, then extract air through the air pipe 40 to discharge the liquid in each tube through the injection pipe 51 into the integrated digestion module 5 for mixing, so as to play the role of pumping and stirring;
[0043] In this em...
Embodiment 3
[0045] A kind of multi-parameter water quality on-line monitoring integrated system of this embodiment, the basic structure is the same as embodiment 2, and the differences and improvements are as follows: figure 2 As shown, the digestion integrated module 5 includes a digestion pipe 53, an upper high pressure valve 52 is provided at the upper end of the digestion pipe 53, a lower high pressure valve 54 is provided at the lower end of the digestion pipe 53, and a resistance wire is provided inside the digestion pipe 53. , a temperature sensor and a thermal fuse, so that the mixed liquid in the digestion tube 53 is heated, pressurized and kept under pressure to realize the digestion reaction, and the thermal fuse can play a protective role in the case of a temperature sensor failure; The lower high-pressure valve 54 is connected with an injection pipe 51, and the end of the injection pipe 51 away from the lower high-pressure valve 54 is connected to the multi-way valve integrat...
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