Split combined type sampling bottle for collecting water sample containing volatile substance and oxygen-sensitive substance

Abstract

The invention relates to a split combined type sampling bottle for collecting a water sample containing a volatile substance and an oxygen-sensitive substance. The split combined type sampling bottle structurally comprises a bottle body, a bottle cover, a pressing plate and a protection cap, wherein the bottle body is formed by an upper bottle body and a lower bottle body which are in folding threaded connection; an O-shaped sealing ring is arranged at a joint; bottlenecks are respectively formed in the upper bottle body and the lower bottle body. By adoption of an upper and lower split combined structure and an upper-bottleneck and lower-bottleneck structure, the sampling bottle disclosed by the invention can realize a specific sampling mode down water feeding and up air exhausting; in a process of injecting the water sample into the bottle, a water outlet end pipe is not needed to be plugged into the sampling bottle, so that interference caused by manmade factors is avoided, and the fidelity of the sample is improved; in a water sample collection process, the rise speed of the water level in the bottle is steady, and is slowly changed; meanwhile, air in the bottle is exhausted, and the pressing plate is closed until the bottle is full of water and water overflows, so that the redundant water sample is discharged, and no redundant space cannot be retained in the bottle; therefore the single sampling success rate is high, and the working efficiency is improved.

Description

Technical field [0001] The invention relates to a sampling container for water quality research, in particular to a split combined sampling bottle containing water samples of volatile substances and oxygen sensitive substances. Background technique [0002] The sampling bottle used in the water quality research process is usually a glass bottle, and its shape is generally a narrow-necked bottle, that is, the bottle body part is a large diameter cylinder, the bottle mouth part is a small diameter cylinder, between the bottle body and the bottle mouth The transition part is a convex toroidal surface. [0003] Sampling bottles are mostly made of glass, and their shortcomings are that they are easily broken during handling and transportation; the second is that the sample bottles containing water samples are slightly pressure-bearing after the mouth is sealed. Status, which makes the bottle body easily damaged if there is a slight collision between the sample bottle and the sample bot...

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a separate combined sampling bottle for collecting water samples containing volatile substances and oxygen-sensitive substances, so as to solve the problems of low fidelity of collecting water samples and difficult sealing operation of traditional sampling bottles, which make sampling easy failure problem

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