A device for automatically injecting tracers in field tracer experiments in subsurface zones and its implementation method

Abstract

The invention discloses an automatic tracer delivery device for field tracer experiment in subsurface zone, which includes a remote control ship; the remote control ship is provided with a tracer storage induction system, a high-pressure micro-flow pumping system and a tracer delivery system which are sequentially connected. The injection system, the high-pressure micro-flow pumping system and the tracer delivery injection system are connected through pipelines, and a shore distance measurement and calibration system is provided at the stern of the remote control ship. The specific implementation method includes: supplementing the tracer and its mixed solution to the tracer storage system in advance, turning on the tracer storage switch, properly adjusting the initial length of the telescopic injection rod, and turning on the high-pressure micro-flow pump and the high-pressure micro-flow pump to process Then, the small boat is remotely controlled to the set position on the shore, and the tracer with a given concentration and dose is released into the river subsurface zone. The invention can put a certain concentration and dose of tracer in the river subsurface zone, and provide research basis for the monitoring of field tracer experiment of subsurface exchange in the subsurface zone.

Description

technical field [0001] The invention belongs to the technical field of field tracing of undercurrent exchanges in river subsurface zones, and in particular relates to a device for automatically injecting tracers for field tracing experiments in subsurface zones and an implementation method thereof. Background technique [0002] In recent years, with the in-depth research on the ecological environment of river water, the hyporheus zone is an area where river water interacts with groundwater, and extremely complex biochemical reactions are taking place in it. . In the past, most scholars conducted research mainly through indoor circulating water tanks to simplify and simulate the subsurface flow exchange process under various conditions. Field tracer experiments encountered more difficulties due to limitations in manpower, financial resources, and material resources. However, field experiments are to test the theoretical feasibility. Therefore, when conducting field experimen...

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Problems solved by technology

In the past, most scholars conducted research mainly through indoor circulating water tanks to simplify and simulate the subsurface flow exchange process under various conditions. Field tracer experiments encountered more difficulties due to limitations in manpower, financial resources, and material resources. However, field experiments are to test the theoretical feasibility. Therefore, when conducting field experiments, a fast, convenient, accurate, and adjustable tracer delivery device can be used, which will make the subsequent field tracer experiments in the subsurface zone and subsurface exchange process more effective.

[0003] At present, there are few domestic patents on the field observation tracer delivery device for subsurface flow exchange in the subsurface zone. In the past, field experiments were mostly restricted by realistic conditions, and it was necessary to frequently replace the tracer and its delivery device according to the requirements of the field tracer experiment, which increased the number of experiments. The cost of some injection devices is relatively complicated, and it is difficult to automatically control the concentration and dose of the injected tracer, and it is difficult to achieve the standards required by the experiment, resulting in large errors

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