An automatic sampling tank for sewage based on pressure difference

Abstract

An automatic sampling tank for sewage based on pressure difference, relates to the technical field of sewage, and includes a tank body, the inner bottom wall of the tank body is provided with a liquid cavity, the middle part of the tank body is fixedly connected with a guide column, and the middle part of the guide column is provided with For the liquid inlet, the top of the tank body is movably connected with a hydraulic cover sleeved with the outer side of the guide column, and the middle of the hydraulic cover is provided with a groove matching with the guide column. The automatic sampling tank for sewage based on pressure difference is used in conjunction with the hydraulic cover. Before use, the compressed gas is added to the gas tank according to the depth of the sample to be collected, so that the sampling device reaches the set depth when sampling. , the hydraulic cover moves downward under the action of water pressure, so that the groove is connected to the liquid inlet, and sampling starts. When removing liquids of different depths, different volumes of compressed gas can be filled, so as to achieve the effect of automatic sampling at a certain depth. , improve the sampling efficiency, effectively ensure the sampling work.

Description

technical field [0001] The invention relates to the technical field of sewage, in particular to an automatic sampling tank for sewage based on pressure difference. Background technique [0002] Sewage is a source of polluted water that is produced in our daily life. Sewage contains a large amount of pollutants. It needs to be treated before it can be discharged into the river, so as to achieve the purpose of environmental protection. Moreover, in order to treat sewage more effectively, Generally, the sewage is sampled first, so that the sewage can be treated in a more targeted manner in the later stage, and the treatment efficiency can be improved. [0003] When the current sampling device is in use, most of the sewage is manually extracted. When sampling, the sampling pipe is extended into the sewage, and then the sewage is pumped into the sampling pipe. The extraction efficiency is relatively low, and the human body is directly in contact with the sewage. Injuries to the ...

AI Technical Summary

Problems solved by technology

[0003] When the current sampling device is in use, most of the sewage is manually extracted. When sampling, the sampling pipe is inserted into the sewage, and then the sewage is pumped into the sampling pipe. The extraction efficiency is relatively low, and the human body is directly in contact with the sewage. The human body is harmed, and at the same time, the current sampling device cannot automatically sample a specific depth, and can only be sampled by manually extending into a specific position, which makes the sampling process more cumbersome and seriously affects the sampling efficiency

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