Pneumatic pump sampling system device of multi-stage monitoring well and method thereof
A sampling system and pneumatic pump technology, applied in the direction of sampling devices, etc., can solve the problems of restricting the development of multi-level groundwater monitoring wells, expensive, cumbersome sampling, etc., and achieve the effects of high practicability and advancement, low cost, and simplified structure
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[0043] The invention provides a groundwater multi-stage monitoring well pneumatic pump sampling technology (including system devices and sampling methods), which can monitor several or dozens of layers of groundwater with a certain height characteristic in a monitoring well. Such as figure 1 In the illustrated embodiment, the setup of the multi-level monitoring well pneumatic pump sampling system is first completed: firstly, drill a multi-level groundwater monitoring well 1 that penetrates the multi-layer water section 7 (or the well depth exceeds the water level by several meters), and select Monitoring layers and establishing monitoring points, and using well formation technology to establish well 3, separating groundwater in adjacent layers at the monitoring points with a sealing device 2. In this embodiment, it is based on the position of the well pipe wall and the isolation point to be sealed The interval between the well walls of the drilling and sinking wells is designed ...
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