Sewage sampling tank

Abstract

The invention discloses a sewage sampling tank, which comprises a tank body and a tank cover. Clump weights are symmetrically disposed at the bottom of the tank body, a groove is arranged at the opening on the top of the tank body, the groove is circular, the bottom of the groove is provided with a seal ring, a steel wire filter screen is mounted at the bottom inside a first pipeline, the steel wire filter screen and a rubber seal sheet are connected by a spring, one side of the tank body bottom is connected to a second pipeline, the second pipeline is internally provided with a brake valve, and a one-way air valve is installed at the top of the tank body. The tank cover is screwed down and fixed to the tank body through butterfly nuts, direct use of threaded connection is avoided, the butterfly nuts are convenient to disassemble, and the contact part of the tank cover and the tank body is equipped with the seal ring, the sealing performance is good, and sewage collection can be realized, at the end of collection, and the rubber seal sheet compresses and seals the opening at the top of the first pipeline firmly under the action of internal water pressure, so that sewage cannot flowout.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sampling tank for sewage sampling. Background technique [0002] The problem of sewage treatment has been paid more and more attention by the society. With the process of urbanization and the development of industrial society, on the one hand, water consumption continues to increase, and water resources are increasingly scarce; on the other hand, sewage discharge is increasing, and environmental pollution is becoming more and more serious. In sewage treatment, it is often necessary to use a sewage sampling tank to facilitate the analysis of sewage. The application number is CN201720496006.1, which discloses a sewage sampling tank. The operator pulls the third rigid rope, and first puts the tank body into the sewage. The body sinks into the water under the action of the counterweight, and then pulls the second rigid rope. At this time, the first plug and the second plu...

AI Technical Summary

Problems solved by technology

In sewage treatment, it is often necessary to use a sewage sampling tank to facilitate the analysis of sewage. The application number is CN201720496006.1, which discloses a sewage sampling tank. The operator pulls the third rigid rope, and first puts the tank body into the sewage. The body sinks into the water under the action of the counterweight, and then pulls the second rigid rope. At this time, the first plug and the second plug are pulled out from the first opening and the second opening under the action of tension, and the sewage passes through the second opening. When entering the tank, the air in the tank is discharged through the first opening. When the liquid level of the sewage in the tank triggers the buoyancy ball switch, the buzzer reminds the operator, and the operator releases the second rigid rope. At this time, the first plug The column and the second plug are reset under the pulling force of the elastic rope, and the first opening and the second opening are blocked to prevent sewage leakage. The operator retracts the tank body through the third rigid rope. The sewage is discharged, and the filling layer is a rock wool layer, which has a good thermal insulation effect and is easy to operate, but the above scheme still has certain defects. The second rigid rope and the third rigid rope are lowered at the same time, and it is very easy to entangle each other, so that When the second rigid rope is pulled, the third rigid rope will also be pulled, which affects the use effect, and the threaded connection between the tank body and the tank cover, due to the high humidity in the working environment, it is easy to cause the tank cover to be unable to be removed due to corrosion, resulting in unsightly Necessary trouble, with certain limitations

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