CN111141928B - Tracer agent feeding device and using method thereof - Google Patents
Tracer agent feeding device and using method thereof Download PDFInfo
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- CN111141928B CN111141928B CN202010068381.2A CN202010068381A CN111141928B CN 111141928 B CN111141928 B CN 111141928B CN 202010068381 A CN202010068381 A CN 202010068381A CN 111141928 B CN111141928 B CN 111141928B
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- underground water
- hole
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/001—Full-field flow measurement, e.g. determining flow velocity and direction in a whole region at the same time, flow visualisation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
Abstract
The invention discloses a tracer feeding device and a using method thereof, wherein the tracer feeding device is used for monitoring the flow direction, the flow speed and the underwater real-time temperature of underground water and can feed tracer at fixed points in an underground aquifer or underground water environment suitable for feeding; and the operation processor is used for receiving the electric signals monitored by the tracer feeding device through the cable and issuing an operation instruction to the tracer feeding device. By the device, the problems of the direction and the flow rate of underground water can be monitored and observed by using specific tracers (such as fluorescein sodium, rhodamine and the like which are selected according to needs), and the hydraulic connection between the source throwing hole and the observation hole can be judged. Meanwhile, the water temperature and the horizontal inclination angle can be monitored, the development condition of rock holes or fractures on the inner wall of the well hole can be observed in real time, the flowing condition of the tracer in the hole can be monitored, and reliable basic data and video image data can be provided for further scientific research.
Description
Technical Field
The invention belongs to the field of water resource and underground water science and engineering application, and particularly relates to a tracer feeding device and a using method thereof.
Background
In order to solve the problems of groundwater resource evaluation and groundwater motion migration law, people often take an underground aquifer as a homogeneous isotropic seepage field roughly, and the groundwater flow direction and flow speed are schematically drawn according to the groundwater equipotential lines and streamlines. However, this is often quite different from the real situation. When people try to put tracer into a confined aquifer or a diving aquifer in ascending water flow in the past, the direction of underground water flow can be obtained only by matching with a large number of observation holes due to the fact that no direction-finding device is arranged, and waste force is more expensive in waste time; the inclination measurement device is not arranged, and the inclination measurement is needed to be independently drilled; in addition, as the aquifer is buried deeply and the groundwater head is under pressure (usually beyond the monitoring level), the tracer once placed in the target aquifer flows out of the borehole with the ascending current. Thus, the tracer is consumed without any effect, and it is difficult to monitor the groundwater flow direction and flow rate of the target aquifer, which results in failure of the test. It is also difficult to determine the direction of groundwater flow movement (due to lack of direction-finding equipment) and the initial concentration of tracer dosed.
Therefore, a practical and effective experimental device is urgently needed to realize the communication test in the aquifer or the underground water body, so that the direction and the flow rate of underground water can be accurately determined, the hydraulic connection between the source throwing hole and the observation hole can be judged, the water temperature and the hole inclination of the drilled hole can be measured, the hole or crack development condition of the drilled hole wall can be observed, the diffusion rule of the tracer in the drilled hole can be researched, and the like.
The existing Chinese patent CN 201820478809-confined aquifer dispersion test device has the following defects in the content recorded in the patent document: the hydraulic plug is brought to a specified depth by a drill rod and is simultaneously connected with a high-pressure pipe and a pressure water pump, which is difficult to realize in a deeper confined aquifer, the drill rod is required for dozens of times or even hundreds of times (one time is about 2 meters), the test time is long, and the cost is high;
imperfections of the borehole wall, such as hole and fracture development, are not considered, and under the condition, the hydraulic plug cannot be guaranteed to be tightly combined with the borehole wall. Leading the pressure-bearing ascending water flow to upwelle and take away the tracer, thus leading the test to fail;
no relation in the groundwater flow mechanism exists between the tracer feeding hole and the observation hole, and the observation hole is difficult to ensure to be in the downstream direction of the groundwater flow. If the observation hole is upstream of the source hole, no tracer will be observed, again leading to test failure.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to facilitate the professional technical personnel to carry out underground water communication experiments in a suitably thrown aquifer or underground water body, help the professional technical personnel to determine the direction and the flow rate of underground water, measure the water temperature and the horizontal inclination angle, judge the hydraulic connection between a source throwing hole and an observation hole, and simultaneously better observe the well wall condition, observe the diffusion rule of a tracer agent in a drill hole and the like; in particular to a tracer feeding device.
The tracer feeding device is used for monitoring the flow direction, flow rate and underwater real-time temperature of underground water and can be used for feeding the tracer at fixed points in an aquifer or underground water environment;
and the operation processor is used for receiving the electric signals monitored by the tracer feeding device through the cable and issuing an operation instruction to the tracer feeding device.
The preferable scheme of the tracer feeding device provided by the invention comprises the following steps: the tracer feeding device is internally provided with a gas bin for storing high-pressure gas, a water bin for containing the tracer and a piston for pushing the tracer to be discharged by releasing the high-pressure gas.
The preferable scheme of the tracer feeding device provided by the invention comprises the following steps: the gas cabin is provided with a charging nozzle for charging high-pressure gas and an electromagnetic valve for controlling the release of the high-pressure gas;
the water sump is provided with a buckle switch; the buckle switch is acted by the squeezing force of the tracer in the water sump, so that the buckle switch is opened to realize the throwing of the tracer.
The preferable scheme of the tracer feeding device provided by the invention comprises the following steps: still install the camera of shooing the image under water on the tracer input device to and for the LED lamp of camera light filling.
The preferable scheme of the tracer feeding device provided by the invention comprises the following steps: the tracer agent putting device is also internally provided with an integrated chip for controlling the opening/closing of the electromagnetic valve and transmitting back the image shot by the camera;
and the integrated chip is also provided with an electronic compass for determining the azimuth, an electronic gyroscope for determining the horizontal inclination angle of the tracer putting device and a temperature sensor for monitoring the water temperature of underground water.
The preferable scheme of the tracer feeding device provided by the invention comprises the following steps: and the operation processor comprises a processor for receiving and processing the electric signals of the integrated chip and a display for displaying the data monitored by the integrated chip and the underwater images shot by the camera.
A using method of a tracer feeding device comprises the following specific steps:
step 1), drilling and tapping a water-resisting layer on a water-bearing layer or an underground water body to be detected, and covering an orifice cap;
step 2), under the condition that the electromagnetic valve is closed, inverting the tracer feeding device, inflating the gas bin through the inflating nozzle, and filling the tracer into the water bin; the inflation pressure in the air bin can ensure that the tracer is pushed to flush the buckle switch, and meanwhile, the water pressure effect of underground water on the buckle switch is also considered, so that the inflation pressure in the air bin is higher in comprehensive consideration;
and 3) placing the tracer feeding device to a corresponding detection position of underground water.
Compared with the prior art, the invention has the beneficial effects that: the device except suitable dive aquifer, the groundwater body of puting in, can also be in the confined aquifer that is difficult to put in the tracer, quantitative tracer is putd in the fixed point position, combines the information that electronic compass and electronic gyroscope provided on the device simultaneously, and the wall of a well condition in the real-time observation orientation is confirmed, and the groundwater flow is accurately judged, real-time temperature and horizontal inclination angle under water are monitored simultaneously. The device has the advantages of repeated use, low cost, difficult damage and the like.
In addition, the device also has an orifice cap to close the bore, which is obviously easier to implement than a hydraulic plug; after the orifice cap is closed, the tracer is controlled to be opened through the electromagnetic valve after the water pressure is stable and the vertical water flow is relatively static, so that the disturbance of the water flow in the drilled hole can be reduced, and the flowing conditions of the underground water and the tracer can be observed more easily; the device is not pushed into by a drill hole, but is pushed into by the self weight of the device, so that the depth is not limited, the working cost is saved, and the device has strong operability and adaptability. The camera can be used for directly observing the condition of the wall of the borehole, the tracer putting position can be better selected, and the flow conditions (flow direction, flow speed and tracer distribution range) of the groundwater and the tracer can be better observed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a tracer application device;
FIG. 3 is a schematic diagram of an operation processor;
FIG. 4 is a schematic diagram of the working principle of the tracer feeding device for feeding tracer;
FIG. 5 is a schematic diagram of a method of use of the present invention;
in the figure: 100-a tracer dosing device; 110-gas cabin; 111-a gas filling nozzle; 120-a water sump; 121-a snap switch; 122-LED lamps; 123-camera; 130-a piston; 200-operating a processor; 210-a display; 220-a processor; 230-an integrated chip; 300-a solenoid valve; 400-a water barrier layer; 500-a confined water layer; 600-an orifice cap; 700-observation hole.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Referring to fig. 1, as a first embodiment of the present invention, there is provided a tracer dispensing device,
the tracer feeding device 100 is used for monitoring the flow direction and flow rate of underground water and the underwater real-time temperature, and can feed tracer at fixed points in a water-containing layer;
the processor 200 is operated to receive the electrical signal monitored by the tracer-dispensing device 100 through the cable and issue an operation instruction to the tracer-dispensing device 100.
Specifically, different sensors and monitoring devices can be carried in the tracer feeding device 100 according to actual needs, and the tracer feeding device is used as an instrument and device carrying platform for monitoring the underground water condition to complete collection of various data and experimental results; the operation processor 200 is capable of receiving the electrical monitoring data signals, displaying the same, and issuing instructions to the instrumentation carried by the tracer-dispensing device 100.
Referring to fig. 2, the tracer-dispensing device 100 is provided therein with a gas tank 110 for storing high-pressure gas, a water tank 120 for containing the tracer, and a piston 130 for pushing the tracer to be discharged by releasing the high-pressure gas. The water sump 120 of the tracer is of a cylindrical structure, and the water sump 120 inside the tracer is of a cylindrical structure, so that the piston 130 can be conveniently sealed and moved.
The gas bin 110 is provided with a charging connector 111 for charging high-pressure gas and an electromagnetic valve 300 for controlling the release of the high-pressure gas;
the water sump 120 is provided with a buckle switch 121; the snap switch 121 is opened by the squeezing force of the tracer in the water sump 120, so that the tracer is put in.
The tracer feeding device 100 is further provided with a camera 123 for shooting underwater images and an LED lamp 122 for supplementing light to the camera 123.
The tracer feeding device 100 is also internally provided with an integrated chip 230 for controlling the electromagnetic valve 300 to be opened/closed and transmitting back the image shot by the camera 123;
the integrated chip 230 is also provided with an electronic compass for determining the azimuth, an electronic gyroscope for keeping the level stable, and a temperature sensor for monitoring the water temperature of underground water.
Specifically, the integrated chip 230 is a modular integrated chip, and corresponding functional devices can be added according to different requirements, so as to meet the monitoring requirement; the electronic compass, the electronic gyroscope, and the temperature sensor may be mounted on the integrated chip 230 in a modular manner.
Temperature sensor selects for use RTD temperature sensor, the model: PR-25CU series, manufacturer: OMEGA Cibacon group.
Electronic compass, model: honeywell HMC5883L chip, manufacturer: shenzhen Shundeli science and technology Limited, size: L3W 3H 0.9.
An electronic gyroscope: the model is as follows: WT-931, manufacturer: shenzhen dimension smart technology Limited, size: 12 x 4 mm.
Referring to fig. 3, the processor 200 is operated and includes a processor 220 for receiving electrical signals from the processing ic 230 and a display 210 for displaying data monitored by the processing ic 230 and underwater images captured by the camera 123.
The working principle of the invention is as follows: referring to fig. 4 and 5, firstly, drilling a hole (namely, a detection hole) in a water-resisting layer 400 on an aquifer or underground water body to be detected, covering an orifice cap 600, and forming a observation hole 700 at a certain distance downstream of the detection hole; under the condition that the electromagnetic valve 300 is closed, the tracer feeding device 100 is inverted, the gas bin 110 is inflated (normal air is available) through the inflating nozzle 111, and the tracer is filled into the water bin 120; the inflation pressure in the gas bin 110 can ensure that the tracer is pushed to flush the buckle switch 121, and meanwhile, the water pressure effect of the underground water on the buckle switch 121 is also considered, so that the inflation pressure in the gas bin 110 needs to be considered to be larger comprehensively.
The upper part of the tracer feeding device is connected with a cable (data line) with a steel wire, and the tracer feeding device is sunk to a specified depth according to the geological data of drilling holes, and the hole opening is closed. The electromagnetic valve 300 is opened by the aboveground operation processor 200, and after the high-pressure gas (inert gas nitrogen) in the gas bin 110 is sprayed out, the piston is pushed to open the buckle switch 121, so that the tracer in the water bin 110 is put into water. In the process of sinking and throwing, the condition of the well wall can be observed by a camera, the specific direction of the observed well wall can be known according to data information returned by the integrated chip 230, and the water temperature and the hole inclination condition of the aquifer can be known according to the temperature provided by the integrated chip 230 and the inclination angle (namely, the hole inclination) information of the drill hole.
If the tracer with color is adopted, the flow direction of the tracer and the change of the liquid shade can be observed through the camera 123 after the tracer is sprayed into the well.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (2)
1. A tracer dispensing device, which is characterized in that: the method comprises the following steps:
the tracer feeding device (100) is used for monitoring the flow direction, the flow speed and the underwater real-time temperature of underground water and can be used for feeding the tracer at a fixed point in an aquifer or an underground water environment;
the operation processor (200) receives the electric signals monitored by the tracer feeding device (100) through a cable and issues operation instructions to the tracer feeding device (100);
the tracer feeding device (100) is internally provided with a gas bin (110) for storing high-pressure gas, a water bin (120) containing the tracer and a piston (130) for pushing the tracer to be discharged by releasing the high-pressure gas;
the gas bin (110) is provided with a charging nozzle (111) for charging high-pressure gas and an electromagnetic valve (300) for controlling the release of the high-pressure gas;
the water sump (120) is provided with a buckle switch (121); the buckle switch (121) is opened under the action of extrusion force of the tracer in the water sump (120) so as to realize the throwing of the tracer;
the tracer feeding device (100) is also provided with a camera (123) for shooting underwater images and an LED lamp (122) for supplementing light for the camera (123);
the tracer feeding device (100) is also internally provided with an integrated chip (230) which is used for controlling the opening/closing of the electromagnetic valve (300) and transmitting back images shot by the camera (123);
the integrated chip (230) is also provided with an electronic compass for determining the azimuth, an electronic gyroscope for determining the horizontal inclination angle of the tracer putting device (100) and a temperature sensor for monitoring the water temperature of underground water;
the operation processor (200) comprises a processor (220) for receiving and processing the electric signal of the integrated chip (230) and a display (210) for displaying the data monitored by the integrated chip (230) and the underwater image shot by the camera (123);
the device also comprises an orifice cap (600) for closing the drill hole, and after the orifice cap (600) is closed, the tracer is controlled to be opened by the electromagnetic valve (300) after the water pressure is stable and the vertical water flow is relatively static.
2. A method of using a tracer dispensing package according to claim 1, wherein:
step 1), drilling and opening a hole in a water-resisting layer (400) on a water-bearing layer or underground water body to be detected, and covering an orifice cap (600);
step 2), under the condition that the electromagnetic valve (300) is closed, inverting the tracer feeding device (100), inflating the gas bin (110) through the inflating nozzle (111), and filling the tracer into the water bin (120); the inflation pressure in the air bin (110) can ensure that the tracer is pushed to flush the buckle switch (121), and meanwhile, the water pressure effect of underground water on the buckle switch (121) is also considered, so that the inflation pressure in the air bin (110) needs to be considered to be larger comprehensively;
step 3), placing the tracer feeding device (100) to a corresponding detection position of underground water;
after the drill hole is sealed by the orifice cap (600), the tracer is controlled to be opened through the electromagnetic valve after the water pressure is stable and the vertical water flow is relatively static, so that the disturbance of the water flow in the drill hole can be reduced, and the flowing conditions of underground water and the tracer can be observed more easily; the drilling hole is not required to be jacked in, the device is used for self-weight lowering, the depth is not limited, the working cost is saved, and the operability and the adaptability are strong; the camera can directly observe the condition of the hole wall of the drill hole, the tracer feeding position can be better selected, and the flow direction, the flow speed and the tracer distribution range of underground water and the tracer can be better observed.
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