Liquid surface ultra-deep sampling device and method of using the same

Abstract

The invention provides an ultra-deep sampling device near the liquid surface and a using method thereof. The ultra-deep sampling device near the liquid surface includes a submersible pump, a water outlet pipe, a drainage body, a drainage cover and a water inlet pipe. The submersible pump is a vertical submersible pump whose water inlet is set on the side wall; the outlet pipe is used to deliver the water extracted by the submersible pump to the water sample collection device; the drainage body is installed at the lower end of the submersible pump to change the water flow into the device Gentle; the drainage cover is a barrel with an open upper end and a conical bottom that is sealed at the lower end. It is worn on the submersible pump from the lower end of the submersible pump with the drainage fluid installed, and its upper port is connected with the water inlet of the submersible pump. The outer wall of the upper end is sealed to form an annular cavity; the water inlet pipe is installed on the thin diameter section at the lower end of the drainage cover. The invention has the advantages of simple structure, convenient operation and low production cost, the depth of water sample collection is not limited by the performance of pumping equipment such as a pump body and water pressure, and the fidelity of the collected water samples is good.

Description

technical field [0001] The invention relates to a sampling device for ultra-deep well water, in particular to an ultra-deep sampling device facing the liquid surface and a using method thereof. Background technique [0002] At present, the monitoring methods of groundwater environment mainly adopt online monitoring and sampling detection. Usually the online monitoring items include water level, water temperature, conductivity and pH, etc. The monitoring items are limited by the performance of online monitoring instruments, and the depth of monitoring points is also limited, especially for large depth monitoring points under the liquid surface. The comprehensive monitoring of environmental quality mainly depends on the method of sampling and detection. In the process of sampling and monitoring, the degree of agreement between the test results of collected samples and the actual situation often depends on the fidelity of the collected samples and the two main factors of detec...

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Problems solved by technology

[0006] The purpose of the present invention is to provide an ultra-deep sampling device near the liquid surface and its use method to solve the problems that the existing sampling equipment is difficult to collect samples in ultra-deep wells and the collected water samples are easily distorted

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