Serum Quantitative Suction Device for Portable Automatic Liquid Sampler

Abstract

The invention relates to a quantitative clear liquid suction device for a portable automatic liquid sampler. The quantitative clear liquid suction device comprises a quantitative liquid suction flask, a liquid leak-proof middle flask and a vacuum pump, wherein the bottom end part of the quantitative liquid suction flask is connected with a liquid inlet pipe and a liquid outlet pipe, and the inlet end of the liquid inlet pipe is connected with a sampling pipe and a discarded liquid pipe in parallel; the inlet end of the sampling pipe is connected with a sampling head, and the liquid outlet pipe is provided with a liquid outlet one-way valve; the liquid leak-proof middle flask is connected with the vacuum pump through a vacuumizing pipeline, and is connected with a liquid suction pipeline through the quantitative liquid suction flask. The quantitative clear liquid suction device provided by the invention has the advantages of simple structure, easiness in operation, stability and reliability in use, and low cost; the clear liquid sampling is adopted, so that the pretreatment program is omitted.

Description

technical field [0001] The invention relates to the technical field of urban sewage treatment equipment, in particular to a clear liquid quantitative suction device for a portable automatic liquid sampler. Background technique [0002] With the continuous deterioration of the water environment, the country's scientific research investment in water treatment is getting higher and higher, related research topics are increasing, and the workload of experimental research is heavy. Among them, regular sampling and filtration pretreatment of water samples occupy a lot of time for grassroots researchers. , the portable sampler can liberate researchers from the heavy and repetitive sampling work, but most of the various samplers currently on the market are imported products, and the liquid sample suction is completed by a computer-controlled peristaltic pump. The peristaltic pump is reversed to realize pipeline cleaning. During the cleaning process, the impact force of the bubbles i...

AI Technical Summary

Problems solved by technology

[0002] With the continuous deterioration of the water environment, the country's scientific research investment in water treatment is getting higher and higher, related research topics are increasing, and the workload of experimental research is heavy. Among them, regular sampling and filtration pretreatment of water samples occupy a lot of time for grassroots researchers. , the portable sampler can liberate researchers from the heavy and repetitive sampling work, but most of the various samplers currently on the market are imported products, and the liquid sample suction is completed by a computer-controlled peristaltic pump. The peristaltic pump is reversed to realize pipeline cleaning. During the cleaning process, the impact force of water bubbles is large, and the clear liquid cannot be extracted.

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