An automatic timing river water sampling device and sampling method thereof

Abstract

The invention discloses an automatic timed river water sampling device and a sampling method thereof. The device includes a sampling platform on which a water pump, a water collection container and a sampling bottle are arranged, wherein the top of the water collection container is connected to the water pump through a water inlet pipe of the water collection container. , the top of the water collection container is rotationally connected with the water inlet pipe of the water collection container, and the bottom of the water collection container is an open structure; the rotation axis of the horizontal rotation mechanism extends into the water collection container from the opening structure at the bottom of the water collection container and then passes through the horizontal support The arm is connected with the water collection container, and is used to drive the water collection container to rotate horizontally around the axis of the water collection container; a water sample outlet pipe is arranged on the pipe wall of the water collection container, and a hollow shaft pipe passes through the center of the water collection pan It is socketed with the rotating shaft of a horizontal rotating mechanism, the bottom of the hollow shaft tube is connected with the push-pull DC electromagnet through the connecting rod, and the controller is connected with the water pump, the horizontal rotating mechanism and the push-pull DC electromagnet.

Description

technical field The invention belongs to a device for automatically and regularly collecting river water, and belongs to the field of isotope hydrology experiments. Background technique During the global water cycle, water bodies undergo processes such as evaporation, condensation, precipitation, infiltration, and runoff. With the development of society, water pollution is becoming more and more serious, and the unreasonable planning of water resources has also led to severe floods and droughts in some areas. It is extremely important to study the mechanism of flow generation and confluence in a watershed for rationally planning the efficient use of water resources. The river flow at the outlet section of a watershed is a comprehensive reflection of the watershed's response to precipitation events. Traditional hydrological methods are difficult to extract accurate and objective flow generation and confluence information from the discharge section flow line. With the contin...

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Problems solved by technology

However, when the precipitation is large, the flow rate is large, and the surrounding ground is wet and slippery. Manual sampling can easily affect personal safety.

3. Difficulty sampling at night

In order to study the time-course changes of river water, artificial sampling can be carried out during the day, but it is very difficult to take samples in the wild at night

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