Underground water sampling device and sampling detection method thereof

Abstract

The invention discloses an underground water sampling device; an underground water containing part of the underground water sampling device is a pipe body with a sealed top and an open bottom; an underground water sampling control part is a valve body arranged at the bottom of the pipe body, a bottom inlet and a top outlet of the valve body are communicated through a valve cavity, a valve elementwith the spherical bottom is arranged in the valve cavity, the top of the valve element is connected with a supporting piece arranged in the valve cavity through an elastic piece, and the bottom faceof the valve element is matched with the spherical structure of the inlet end of the valve cavity. An underground water inlet part is a water inlet net of a cylindrical structure arranged at the bottom of the valve body; a counterweight part is a counterweight block arranged at the bottom of the water inlet net; an impurity sampling part is a water permeable cylinder arranged on the top surface ofthe pipe body, and the water permeable cylinder is externally sleeved with a filter screen for impurity attachment; and a hanging part is a perforated connecting piece arranged at the top of the water permeable cylinder. The invention further discloses a sampling detection method using the device, sampling can be conveniently carried out at fixed water depth, and therefore the accuracy of a detection result is ensured.

Description

technical field [0001] The invention relates to the technical field of groundwater quality testing equipment, in particular to a groundwater sampling device and a groundwater sampling and testing method. Background technique [0002] Groundwater refers to the water that exists in the rock voids below the ground. In a narrow sense, it refers to the water in the saturated aquifer below the groundwater surface. Groundwater is an important part of water resources. Due to the stable water quantity and good water quality, it is one of the important water sources for agricultural irrigation, industrial mining and cities. However, under certain conditions, changes in groundwater can also cause unfavorable natural phenomena such as swamps, salinization, landslides, and land subsidence. Therefore, when conducting geological exploration, it is necessary to carry out groundwater sampling and testing. However, the existing groundwater sampler has a complex structure and is easily damag...

AI Technical Summary

Problems solved by technology

However, the existing groundwater sampler has a complex structure and is easily damaged. The most important thing is that it cannot complete the sampling of groundwater at a fixed depth in the well, which affects the accuracy of the test results.

Images