Laboratory tracer experiment system for medium characteristic inversion of karst conduit

Patent metadata

Field	Value
Publication number	US-10989702-B2
Application number	US-201816466787-A
Country	US
Kind code	B2
Filing date	Jul 27, 2018
Priority date	Jun 25, 2018
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A laboratory tracer experiment system based on karst conduit medium characteristic inversion, having: a assembly model system of the karst conduit medium; a test bed, configured to support the assembly model system of the karst conduit medium; a water supply system connected to the assembly model system of the karst conduit medium to supply water to the assembly model system of the karst conduit medium; a full-automatic control system for tracer adding connected to the assembly model system of the karst conduit medium to add a prepared tracer solution into the assembly model system of the karst conduit medium; a real-time wireless monitoring system of fluorescent tracer; and a central control system for controlling the full-automatic control system for tracer adding, the water supply system, the real-time wireless monitoring system of fluorescent tracer and the high-definition camera recording system to communicate with the central control system.

First claim

The invention claimed is:

1. A laboratory tracer experiment system based on karst conduit medium characteristic inversion, comprising:
a assembly model system of the karst conduit medium, a test bed, a water supply system, a full-automatic control system for tracer adding, a real-time wireless monitoring system of fluorescent tracer, a central control system and a high-definition camera recording system;
the assembly model system of the karst conduit medium consists of a series of conceptual model of karst conduits of designed sizes and types, and is configured to simulate different types of underground karst media; flow rate measurement and tracer adding are carried out at an inlet of each conduit, and real-time data acquisition and monitoring are carried out at an outlet to obtain tracer curve characteristics of different karst medium structures;
the test bed is configured to support the assembly model system of the karst conduit medium; the water supply system is connected to the assembly model system of the karst conduit medium to supply water to the assembly model system of the karst conduit medium;
the full-automatic control system for tracer adding is connected to the assembly model system of the karst conduit medium to add a prepared tracer solution into the assembly model system of the karst conduit medium;
the real-time wireless monitoring system of fluorescent tracer is configured to monitor the concentration of a fluorescent tracer and the flow rate in real time, and implement remote wireless transmission of data;
the high-definition camera recording system is configured to record and shoot the whole transport process of the fluorescent tracer in the conduit, and transmit images and videos in real time to the central control system wirelessly, and the images and videos and the collected tracer concentration and flow rate are visually displayed on the display screen to provide basis and help for processing and analyzing late data;
the central control system controls the full-automatic control system for tracer adding, the water supply system, the real-time wireless monitoring system of fluorescent tracer and the high-definition camera recording system to communicate with the central control system.

2. The laboratory tracer experiment system based on karst conduit medium characteristic inversion according to claim 1 , wherein the conduit model is made of a transparent material; an opening connected to the full-automatic control system for tracer adding is disposed at a position of the conduit model near the inlet, an opening connected to the real-time wireless monitoring system of fluorescent tracer is disposed near the outlet, and the two openings are sealed by seal rings.

3. The laboratory tracer experiment system based on karst conduit medium characteristic inversion according to claim 1 , wherein the test bed comprises a bed base and support frames, and drainage channels are disposed in the middle of and on four sides of the bed base; two slide rails are disposed on two sides of the middle drainage channel, a plurality of height adjustable support frames is mounted on the two slide rails, and the assembly model system of the karst conduit medium is mounted on the support frames.

4. The laboratory tracer experiment system based on karst conduit medium characteristic inversion according to claim 1 , wherein the full-automatic control system for tracer adding comprises a water supply device, an integrated three-chamber-combined device, a central control system and an online real-time monitoring device;
the integrated three-chamber-combined device comprises a premixing chamber, a mixing chamber and a storage chamber which are sequentially connected;
the premixing chamber is used for storing dry powder of three tracers, i.e., rhodamine, fluorescein sodium and Tinopal, a weighing device is disposed at the bottom of the premixing chamber, and the weighing device is configured to detect the weight of the dry tracer powder and send detected signals to the central control system; the central control system controls the weight of the dry tracer powder entering the mixing chamber;
the mixing chamber is used for preparation of a tracer solvent, and the water supply device supplies water to the mixing chamber; the mixing chamber comprises a temperature sensor disposed at the lower part of the mixing chamber, a stirring rod, and a cooling base; the stirring rod is configured to stir a solution to be mixed; the cooling base is at the bottom of the premixing chamber, the temperature sensor is connected to the central control system, and the central control system controls the cooling base to control the temperature in the mixing chamber;
the storage chamber is configured to store a prepared solution, and a drainage hose in communication with the conduit is disposed on the storage chamber;
the online real-time monitoring device comprises a plurality of sensors mounted in the mixing chamber and the storage chamber, and is configured to monitor various parameters of the prepared solution, and transmit data to the central control system to retain historical data in time.

5. The laboratory tracer experiment system based on karst conduit medium characteristic inversion according to claim 4 , wherein the stirring rod comprises a hollow main rod and a plurality of spiral slices mounted at the bottom of the main rod; the main rod is provided with an injection hole of ethanol solution, each of the spiral slices and the side wall of the main rod form a hollow structure having a triangular cross section, and a plurality of small holes are uniformly distributed on the side walls of the spiral slices; the interior of the hollow main rod communicates with the interiors of the spiral slices.

6. The laboratory tracer experiment system based on karst conduit medium characteristic inversion according to claim 4 , wherein the water supply device comprises a water tank, an electric pump and an electric flow regulator, and is used for providing a stable water source; the electric pump provides power to continuously pump water in the water tank to the mixing chamber; the electric flow regulator controls the flow and inlet flow rate according to a signal sent by the central control system, and transmits the flow information to the central control system.

7. The laboratory tracer experiment system based on karst conduit medium characteristic inversion according to claim 4 , wherein the online real-time monitoring device comprises an online tracer monitor, a turbidity sensor, a PH sensor, a corrosion rate monitor, a photoelectric liquid level sensor and a temperature sensor; during adding, the online real-time monitoring device monitors important water quality parameters in real time by using online sensors, and transmits the parameters to the central control system to retain historical data in time; the turbidity sensor, the PH sensor and the corrosion rate monitor are arranged in the mixing chamber and the storage chamber to monitor the turbidity, PH value and corrosion rate in the preparation and storage process of the tracer solution;
the online tracer monitor is mounted in the mixing chamber to monitor the tracer concentration in the mixing chamber in real time; when the concentration of an agent is insufficient, the chemical agent can be supplemented to a designed concentration in time to ensure that the chemical agent in the system is always maintained in an optimal state;
the photoelectric liquid level sensor is mounted in the storage chamber to monitor the liquid level in real time; when the solution in the storage chamber is at a low liquid level, the sensor transmits a liquid level output signal to an adding control module of the central control system, and the device is started to carry out the proc

Assignees

• Univ Shandong

Inventors

• Li Shucai
• Wang Xintong
• Xu Zhenhao
• Lin Peng
• Pan Dongdong
• Huang Xin
• Gao Bin
• Wang Wenyang

Classifications

• G01N33/246 Primary

  for water content · CPC title

• G09B23/40

  for geology · CPC title

• G09B25/08

  of scenic effects, e.g. trees, rocks, water surfaces (for stage purposes A63J1/00) · CPC title

• G09B25/06

  for surveying; for geography, e.g. relief models (globes G09B27/00; maps G09B29/00) · CPC title

• G01N13/00 Primary

  Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects (scanning-probe techniques or apparatus G01Q) · CPC title