A well multi-layer groundwater sampling system based on electromagnet docking
A sampling system and electromagnet technology, applied in the direction of sampling devices, etc., can solve the problems of cumbersome operation, limited application range, data distortion, etc., and achieve the effects of accurate sampling position, cost reduction and convenient sampling
Inactive Publication Date: 2017-11-17
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology
The existing groundwater samplers in China are often complex in structure, large in size, and cumbersome to operate. When collecting groundwater samples, they will be in contact with the air to distort the data, and the application range is relatively limited, so one device cannot be used for multiple purposes.
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[0015] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0016] Such as Figure 1-3 As shown, a multi-layer groundwater sampling system for a well based on electromagnet docking includes an inner pipe 1, an outer pipe 2 and a sampler. There are flower holes 5, and the inner pipe 1 is arranged in the inner center of the outer pipe to align with the center of the outer pipe. In the gap between the outer pipe and the inner pipe, there are several groups of water-repellent layers 6 at intervals relative to the position of the underground aquifer. Layer 6 includes two layers of water-proof materials respectively located at the top and bottom of the relative underground aquifer, and the position of the inner pipe 1 corresponding to the underground aquifer is provided with an outwardly convex conical water outlet interface 7; the sampler includes a sampling pipe 3...
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The present invention proposes a multi-layer groundwater sampling system for a well based on electromagnet docking, which includes an inner pipe, an outer pipe and a sampler. The inner pipe is set in the inner center of the outer pipe to align with the center of the outer pipe. The inner pipe has a water outlet interface at the position corresponding to the underground aquifer, and the gap between the outer pipe and the inner pipe is provided with several groups of water barriers at intervals relative to the underground aquifer. layer, the sampler includes a sampling tube and a sampling joint, the lower side of the sampling tube is provided with a sampling port, the top of the sampling tube is connected to an air pump, and the sampling port is configured with the water outlet port. The invention guarantees the authenticity of the water sample to the greatest extent, has a long service life and is easy to operate.
Description
technical field [0001] The invention belongs to the technical field of groundwater sampling, in particular to an electromagnet-based one-well multi-layer groundwater sampling system. Background technique [0002] With the increasing water pollution, there are more and more monitoring of groundwater pollution at home and abroad. To monitor groundwater, the first thing to do is to collect groundwater samples. At present, depth-fixed samplers are mainly used for deep-layer groundwater sampling, or the method of pumping water directly into the observation hole. The water samples obtained are mostly surface water samples or mixed water samples. samples, and can only collect water samples from a single groundwater layer. For such a complex underground environment, it has strong stratification, and the layers are often separated by solid materials such as soil and rock, so it is difficult to take stratified sampling. The existing groundwater samplers in China are often complex in...
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IPC IPC(8): G01N1/14
Inventor 卢彬鹏郑豪解朝家
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)