Underground water stratified sampling device and use method thereof

Abstract

According to an underground water stratified sampling device and the using method thereof, impurities can be prevented from being attached to the outer side of a filtering structure through rotation of an external structure, the problem of blockage of filtering holes is effectively solved through cooperation with a mesh blockage clearing structure, the normal water pumping efficiency during sampling is guaranteed, and meanwhile through a sampling mode of time division mistake, permeated mixed groundwater is conveniently isolated after comparison and sampling quality is ensured. The device is characterized in that the cross section of a lifting mechanism is triangular, a traction rope is arranged in the lifting mechanism through a pulley, one end of a connecting rod is fixedly arranged at the end of the traction rope, an upper sealing air bag is arranged in the middle of the connecting rod in a penetrating mode. A pressurizing air pipe is fixedly arranged at the top of the upper sealing air bag, a fixing plate is fixedly arranged at the other end of the connecting rod and is of a circular plate-shaped structure, at least six electric expansion pieces are circumferentially arranged at the bottom of the fixing plate, the bottoms of the electric expansion pieces are connected with a sampling barrel through piston rods, and the sampling barrel is hollow.

Description

technical field [0001] The invention relates to a groundwater layered sampling device and a use method thereof, relating to a device capable of layered sampling of groundwater and a use method thereof, belonging to the field of groundwater ring frame monitoring. In particular, it relates to a kind of sampling method that can prevent impurities from adhering to the outside of the filter structure through the rotation of the external structure, cooperate with the mesh cleaning structure to effectively avoid the blockage of the filter holes, ensure the normal pumping efficiency during sampling, and at the same time, can pass time-staggered sampling methods, The device and the method of use thereof are convenient for isolation after comparison of infiltrated mixed groundwater, and for ensuring the quality of sampling. Background technique [0002] In the field of groundwater environmental monitoring, layered sampling of groundwater is a commonly used monitoring method. In the pr...

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Problems solved by technology

[0005] In order to improve the above situation, the present invention provides a layered sampling device for underground water and its use method, which can avoid the adhesion of impurities on the outside of the filter structure through the rotation of the external structure, and cooperate with the mesh cleaning structure to effectively avoid the blockage of the filter hole. To ensure the normal pumping efficiency during sampling, and at the same time, through the time-staggered sampling method, it is convenient to isolate the infiltrated mixed groundwater after comparison, and the device and its use method to ensure the quality of sampling

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