Combined water quality sampling barrel convenient to assemble and disassemble

Abstract

A combined water quality sampling barrel comprises a barrel body, an upper cover and a lower cover; an upper water seal sheet is arranged in an inner cavity of the upper cover, and an upper stop dog is rotationally arranged on an upper end opening of the upper cover; a lower water seal sheet is arranged in an inner cavity of the lower cover, and a lower stop dog is rotationally arranged on an upper end opening of the lower cover. An upper flange plate is arranged on the upper end face of the upper cover, a lower flange plate is arranged on the lower end face of the lower cover, the upper flange plate and the lower flange plate are connected in a fastened mode through multiple bolts and multiple nuts, and therefore the upper flange plate, the upper cover, the barrel body, the lower cover and the lower flange plate are connected into a whole. The combined water quality sampling barrel is convenient to assemble and disassemble, fast to assemble, convenient to clean and particularly high in corrosion resistance and ageing resistance and prevents secondary pollution to water.

Description

Technical field [0001] The invention belongs to a water quality sampling device, in particular to a detachable and combined water quality sampling barrel. Background technique [0002] Nowadays, the materials of water sampling barrels are plexiglass, stainless steel and polypropylene resin materials. Because the structure adopts bonding or welding, the upper and lower openings of the sampling barrel are very small, and it is extremely difficult to brush, and acid solution cannot be used for soaking and cleaning. The impurities accumulated in the barrel directly contaminate the collected samples after long-term reproduction. [0003] Although plexiglass has a better temperature range (-50~60℃), strong hardness, better weather resistance, aging resistance and relatively stable chemical properties. However, the sampling barrel made of plexiglass and polypropylene resin uses a large amount of organic solvents such as acetone and chloroform during the manufacture. Under the influence o...

AI Technical Summary

Problems solved by technology

However, a large amount of organic solvents such as acetone and chloroform are used in the manufacture of sampling barrels made of plexiglass and polypropylene resin. Under the influence of the collected complex water bodies, a small amount of organic substances will be dissolved from the bonding part of the barrel and enter Among the collected water samples, the analysis and detection of organic substances are affected

[0004] The samples collected by the stainless steel sampler will be affected by the material of the container, resulting in the increase of metal substances in the sample, and it is not easy to scrub or soak in acid solution. After long-term use, the sample will oxidize and corrode the welding part of the cylinder. can also contaminate the sample quality

Although some samplers use a combination of screw buckles, rubber rings are used as seals on the screw buckle parts, and there is also the problem that the dissolution of organic substances affects the quality of samples.

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