CN106840975A - A kind of device and monitoring method for monitoring undercurrent Flux - Google Patents
A kind of device and monitoring method for monitoring undercurrent Flux Download PDFInfo
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- CN106840975A CN106840975A CN201710138659.7A CN201710138659A CN106840975A CN 106840975 A CN106840975 A CN 106840975A CN 201710138659 A CN201710138659 A CN 201710138659A CN 106840975 A CN106840975 A CN 106840975A
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Abstract
The invention discloses a kind of device for monitoring undercurrent Flux, including tank, the two sand block plates being parallel to each other are vertically arranged with along inboard wall of cistern, region between two sand block plates is earth's surface water tank, both sides are respectively upstream water tank and downstream water tank, upstream water tank bottom has been sequentially communicated water pump and outlet threeway by pipeline, outlet threeway has been respectively communicated with pipe heating device and pipeline cooling device by pipeline, pipe heating device and pipeline cooling device are communicated with import threeway jointly by pipeline, import threeway is connected by pipeline with downstream water tank bottom, import threeway is also associated with water supply line, water supply line is communicated with supply tank.Tank surface water can be controlled to heat with cooling to study the transient process problem that undercurrent is exchanged.The invention also discloses a kind of method for monitoring undercurrent Flux.
Description
Technical field
The invention belongs to hydraulic engineering testing equipment technical field, it is related to a kind of device for monitoring undercurrent Flux, this
Invention further relates to the method that undercurrent Flux is monitored using said apparatus.
Background technology
Phreatic zone is the deposit layer of water saturation in river riverbed, is the region that river interacts with underground water, is deposited
Matter and energy is exchanged and transition between overlying water and underground water, is the important component of river ecosystem.Water
As the excellent carrier of heat, the information of energy variation can be carried during water flowing, observe river, lake, wetland, rivers and canals
The spatial and temporal distributions of bottom temp, can determine the exchange process of underground water and surface water body.
At present, the method for research riverbed undercurrent exchange process pattern goes to realize using laboratory test mostly.Consult domestic and international
Document, conventional water tank device is used for solute spike, the change of surface water hydrodynamic force, bed configuration changes and deposit permeability changes
The factors such as change, study the undercurrent exchange process pattern in riverbed.However, in process of the test there is anisotropic, solute point in deposit
There is heterogencity in cloth, accurately measure its concentration, and difficulty is big, error is big, it is impossible to accurate simulation surface and ground water undercurrent
The transient process of exchange.
The content of the invention
It is an object of the invention to provide a kind of device for monitoring undercurrent Flux, solve present in prior art not
Tank surface water can be controlled to heat with cooling to study the transient process problem that undercurrent is exchanged.
It is a further object to provide a kind of method for monitoring undercurrent Flux.
The technical solution adopted in the present invention is, a kind of device for monitoring undercurrent Flux, including tank, along tank
Wall is vertically arranged with two sand block plates being parallel to each other, and tank is divided into upstream water tank, earth's surface water tank, downstream water tank by sand block plate,
Region between two sand block plates is earth's surface water tank, and the inside of earth's surface water tank was divided into water layer, deposit layer under upper,
Upstream water tank bottom has water pump by pipeline communication, and water pump is connected with outlet threeway by pipeline, and outlet threeway is by pipeline point
Pipe heating device and pipeline cooling device are not communicated with, and pipe heating device is connected jointly with pipeline cooling device by pipeline
There is import threeway, import threeway is connected by pipeline with downstream water tank bottom, and import threeway is also associated with water supply line, feed pipe
Road is communicated with supply tank, and the madial wall of deposit layer is provided with array of temperature sensor, and temperature sensor is connected by wire
Moisture recorder is connected to, the pipeline between import threeway and downstream water tank is provided with self-loopa valve, is provided with water supply line
Water supply valve.
Pipeline cooling device includes cooling water tank, and by pipeline communication cooling water tank, cooling water tank is by pipe for outlet threeway
Road is communicated with import threeway jointly, and cooling water tank is also communicated with cooling circulating water water inlet pipe and cooling circulating water return pipe, cooling
Circulating water inlet is connected with recirculated water suction pump, and cooling circulating water suction pump connects supply tank, and cooling circulating water return pipe connects
Cooling circulating water back water pump is connected to, cooling circulating water back water pump connects supply tank, backwater is provided with cooling circulating water return pipe
Valve, energy-dissipation orifice plate is provided between upstream water tank and excessively water layer, and multiple holes are uniformly offered on energy-dissipation orifice plate, and energy-dissipation orifice plate is fixed
On sand block plate, tail-gate device is provided between downstream water tank and excessively water layer, tail-gate device is fixed on sand block plate, downstream water tank
Inside it is provided with water level regulation plate.
Pipeline between upstream water tank and water pump and the pipeline between import threeway and downstream water tank are disposed as plastics and stretch
Contracting flexible pipe, the pipeline between upstream water tank and water pump is provided with electromagnetic flowmeter, between outlet threeway and pipe heating device
It is provided with pipeline and the second valve is provided with the pipeline between the first valve, and outlet threeway and cooling water tank, pipeline heating
The 3rd valve is provided with pipeline between device and import threeway, is provided with the pipeline between cooling water tank and import threeway
4th valve.
Downstream water tank bottom is also associated with return pipe, and the return pipe other end is connected supply tank, is provided with return pipe normally closed
Valve.
Earth's surface water tank is set to cuboid, and two sand block plates are sequentially arranged along the length direction of earth's surface water tank, TEMP
Device equidistantly distributed at 5m in the middle of the length direction of earth's surface water tank, temperature sensor is along earth's surface water tank depth direction in deposit
Layer lower 10,20,30,50cm positions is sequentially arranged.
Device for detecting temperature is provided with upstream water tank and downstream water tank.
Bottom of gullet is provided with hydraulic pressure support bar and rotation support pole, and being installed with recorder on tank lateral wall puts
Plate is put, moisture recorder is fixed on recorder and places on plate.
Pipe heating device includes temperature controller and temperature heating rod.
Another technical scheme of the invention is that a kind of method for monitoring undercurrent Flux monitors undercurrent using one kind
The device of Flux, specifically implements according to following steps：
Step 1, to deposit is added in earth's surface water tank, is then shut off self-loopa valve, opens water supply valve, opens water
Pump, from supply tank to the surface water constant level into earth's surface water tank that supplied water in tank；
Step 2, closes water supply valve, opens self-loopa valve, changes water pump aperture and treats that flow reaches requirement of experiment, makes ground
Table water stable level；
Step 3, adjusts earth's surface coolant-temperature gage, and preserve in water temperature change procedure the temperature data of moisture recorder record and
Time data；
Step 3.1, opens pipe heating device and surface water is heated into test requirements document maximum temperature, treats that surface water is heated to
After test requirements document maximum temperature, pipe heating device is closed；
Surface water is cooled to step 3.2, opening conduits cooling device the minimum temperature of requirement of experiment, treats earth's surface water-cooled
But to after test requirements document minimum temperature, pipeline cooling device is closed；
Step 3.3, preserves the temperature data and time data of moisture recorder record in water temperature change procedure.
Step 4, the temperature data recorded according to moisture recorder, time data calculate the undercurrent exchange capacity of earth's surface water tank,
Unit area undercurrent exchange capacity computing formula is：
Wherein：κeIt is effective thermal diffusion coefficient m2/ s, C are the specific heat capacity J/m of deposit3/ DEG C, CwIt is the specific heat capacity J/ of water
m3/ DEG C, Ar is 2 temperature sensor temperature amplitude ratios of different depth,
V is riverbed infiltration rate；P is the cycle of temperature change, and Δ z is two of different depth
Air line distance between measurement point.
The features of the present invention is also resided in,
Step 1 is specifically implemented according to following steps：
Step 1.1, to deposit is added in earth's surface water tank, closes self-loopa valve, opens water supply valve, opens water pump,
The first valve is opened, the 3rd valve is opened, clear water is added in the deposit layer from supply tank to tank, reach deposit layer full
And state, the i.e. water surface flood deposit layer surface just, and in hour the water surface without decline；
Step 1.2, the angle for adjusting water level regulation plate made the depth of water of water layer reach requirement of experiment water level；
Step 3.1 is specifically implemented according to following steps：
Step 3.1.1, opens pipe heating device, and test requirements document maximum temperature, constant temperature are set on temperature controller
Heating；
Step 3.1.2, observes device for detecting temperature, after surface water is heated to test requirements document maximum temperature, closes pipeline
Heater, closes the first valve, closes the 3rd valve；
Step 3.2 is specifically implemented according to following steps：
Step 3.2 is specifically implemented according to following steps：
Step 3.2.1, opens the second valve and the 4th valve, moves the water to flow into cooling water tank；
Step 3.2.1, after water tank to be cooled is full, opens cooling circulation suction pump, opens cooling circulating water flowing water Valve；
Step 3.2.2, opens cooling circulating water back water pump；
Step 3.2.3, observes device for detecting temperature, when temperature is down to test requirements document minimum temperature, closes cooling circulation
Draw water；
Step 3.2.4, when the water in cooling water tank is exhausted, closes cooling and loops back water pump, is a circulating cycle now
Phase.
The beneficial effects of the invention are as follows：A kind of device for monitoring undercurrent Flux of the invention, by setting upstream and downstream
Self-circulating water system between water tank, can simulate surface and ground water undercurrent and exchange self-loopa, in the accurate landearth-circumstance of temperature control
Surface and ground water coupling test is completed under condition；By being arranged in the temperature sensor measurement on the inside of earth's surface water tank side wall not
With the temperature of position, such that it is able to the influence exchanged undercurrent using temperature tracer method Study of The Underground water.It is bent by temperature sequence
Linear location analysis method, the hole coolant-temperature gage of indirect determination specified location, and then obtain undercurrent Flux.
Brief description of the drawings
Fig. 1 is a kind of structural representation of device for monitoring undercurrent Flux of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the upward view of Fig. 1；
Fig. 4 is that a kind of temperature sensor of device for monitoring undercurrent Flux of the invention is connected pass with moisture recorder
It is schematic diagram；
Fig. 5 is a kind of structural representation of the pipeline cooling device of device for monitoring undercurrent Flux of the invention；
Fig. 6 is that a kind of energy-dissipation orifice plate of device for monitoring undercurrent Flux of the invention is illustrated with sand block plate installation relation
Figure；
Fig. 7 is a kind of local pipe connection diagram of device for monitoring undercurrent Flux of the invention；
Fig. 8 is a kind of structural representation of the pipe heating device of device for monitoring undercurrent Flux of the invention.
In figure, 1. tank, 2. crosses water layer, 3. deposit layer, 4. upstream water tank, 5. downstream water tank, 6. energy-dissipation orifice plate, 7. tail
Door gear, 8. water level regulation plate, 9. the first valve, 10. device for detecting temperature, 11. second valves, 12. electromagnetic flowmeters, 13.
Water pump, 14. outlet threeways, 15. pipe heating devices, 16. pipeline cooling devices, 17. import threeways, 18. self-loopa valves,
19. cooling circulating water water inlet pipes, 20. cooling circulating water return pipes, 21. cooling circulating water suction pumps, 22. backwater valves, 23. is cold
But recirculated water back water pump, 24. supply tanks, 25. water supply lines, 26. water supply valves, 27. temperature sensors, 28. hydraulic pressure support bars,
29. rotation support poles, 30. return pipes, 31. temperature controllers, 32. temperature heating rods, 33. moisture recorders, 34. sand blocks
Plate, 35. recorders place plate, 36. earth's surface water tanks, 37. the 3rd valves, 38. the 4th valves, 39. cooling water tanks.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of device for monitoring undercurrent Flux of the invention, as shown in Figure 1-Figure 3, including tank 1, along tank 1
Wall is vertically arranged with two sand block plates 34 being parallel to each other, sand block plate 34 by 1 point of tank be upstream water tank 4, earth's surface water tank 36, under
Swimming case 5, region between two sand block plates 34 is earth's surface water tank 36, and the inside of earth's surface water tank 36 was divided under upper
There is water pump 13 water layer 2, deposit layer 3, the bottom of upstream water tank 4 by pipeline communication, and water pump 13 is connected with outlet three by pipeline
Logical 14, outlet threeway 14 has been respectively communicated with pipe heating device 15 and pipeline cooling device 16, pipe heating device by pipeline
15 and pipeline cooling device 16 import threeway 17 is communicated with by pipeline jointly, import threeway 17 is by pipeline and downstream water tank 5
Bottom connects, and import threeway 17 is also associated with water supply line 25, and water supply line 25 is communicated with supply tank 24, positioned at deposit layer 3
Madial wall be provided with the array of temperature sensor 27, as shown in figure 4, temperature sensor 27 is connected with thermograph by wire
Instrument 33, the pipeline between import threeway 17 and downstream water tank 5 is provided with self-loopa valve 18, and water supply is provided with water supply line 25
Valve 26.
As shown in figure 5, pipeline cooling device 16 includes cooling water tank 39, outlet threeway 14 passes through pipeline communication cooling water tank
39, cooling water tank 39 is communicated with import threeway 17 jointly by pipeline, and cooling water tank 39 is also communicated with cooling circulating water water inlet pipe
19 and cooling circulating water return pipe 20, cooling circulating water water inlet pipe 19 is connected with recirculated water suction pump 21, and cooling circulating water draws water
Pump 21 connects supply tank 24, and cooling circulating water return pipe 20 is connected with cooling circulating water back water pump 23, cooling circulating water back water pump
23 connect supply tanks 24, and backwater valve 22 is provided with cooling circulating water return pipe 20, as shown in fig. 6, upstream water tank 4 and water excessively
Energy-dissipation orifice plate 6 is provided between layer 2, multiple holes are uniformly offered on energy-dissipation orifice plate 6, energy-dissipation orifice plate 6 is fixed on sand block plate 34, under
Tail-gate device 7 is provided between swimming case 5 and excessively water layer 2, tail-gate device 7 is fixed on sand block plate 34, is set in downstream water tank 5
There is water level regulation plate 8.
As shown in fig. 7, the pipeline between upstream water tank 4 and water pump 13 and the pipe between import threeway 17 and downstream water tank 5
Road is disposed as plastics expansion flexible pipe, and the pipeline between upstream water tank 4 and water pump 13 is provided with electromagnetic flowmeter 12, exports threeway
It is provided with pipeline between 14 and pipe heating device 15 between the first valve 9, and outlet threeway 14 and cooling water tank 39
The second valve 11 is provided with pipeline, the 3rd valve is provided with the pipeline between pipe heating device 15 and import threeway 17
37, the 4th valve 38 is provided with the pipeline between cooling water tank 39 and import threeway 17.
The bottom of downstream water tank 5 is also associated with return pipe 30, and the other end of return pipe 30 is connected supply tank 24, set on return pipe 30
It is equipped with normal closed gate.
Earth's surface water tank 36 is set to cuboid, and two sand block plates 34 are sequentially arranged along the length direction of earth's surface water tank 36, temperature
The degree equidistantly distributed at 5m in the middle of the length direction of earth's surface water tank 36 of sensor 27, temperature sensor 27 is deep along earth's surface water tank 36
Degree direction is sequentially arranged in deposit layer 3 times 10,20,30,50cm positions.
Device for detecting temperature 10 is provided with upstream water tank 4 and downstream water tank 5.
The bottom of tank 1 is provided with hydraulic pressure support bar 28 and rotation support pole 29, and note is installed with the lateral wall of tank 1
Record instrument places plate 35, and moisture recorder 31 is fixed on recorder and places on plate 35.
As shown in figure 8, pipe heating device 15 includes temperature controller 31 and temperature heating rod 32.
The operation principle of device that the present invention is a kind of to monitor undercurrent Flux is：During work, add in earth's surface water tank 36
Enter deposit, be then shut off self-loopa valve 18, open water supply valve 26, open water pump 13, open the first valve 9, the 3rd valve
Door 37, to clear water is added in deposit layer 3, makes deposit layer reach saturation state, the i.e. water surface and floods the table of deposit layer 3 just
The water surface is without decline in face, and 1 hour, and adjusting the angle of water level regulation plate 8 made the depth of water of water layer 2 reach requirement of experiment water
Position；Then, water supply valve 25 is closed, self-loopa valve 18 is opened, is changed the aperture of water pump 13 and is treated that flow reaches requirement of experiment, make ground
Table water stable level；It is then turned on pipe heating device 15 and after setting test requirements document maximum temperature on temperature controller 31, adjusts
The second valve 11 is saved, the 4th valve 38 moves the water to flow into cooling water tank 39, meanwhile, cooling circulation suction pump 21 is opened, treat that pipeline is cold
But the reclaimed water of water tank 39 expires, and opens cooling circulating water flowing water Valve 22 and opens cooling circulating water back water pump 23, by observing temperature
Monitoring device 10, when temperature is down to test requirements document minimum temperature, closes cooling circulation and draws water 21, the water in cooling water tank 39
Exhaust, close cooling and loop back water pump 23；Then observe and record temperature data, the time data of moisture recorder record, root
Temperature data, the undercurrent exchange capacity of time data calculating earth's surface water tank recorded according to moisture recorder.By pipe heating device
15 and pipeline cooling device 16 make the earth's surface coolant-temperature gage in earth's surface water tank 36 into cyclically-varying, by being arranged in earth's surface water tank 36
The array of temperature sensor 27 of madial wall determines the temperature of the pore water of specified location, further according to temperature sequence curve qualitative analysis
Method, is exchanged by the temperature curve phase of different depth temperature sensor and the undercurrent of amplitude variations research surface water and groundwater
Flux.
A kind of device for monitoring undercurrent Flux of the invention is filled by setting pipe heating device 15 and tube-cooled
16 are put, and pipe heating device 15 are together in parallel with cooling device 16, temperature controller 31 is set on pipe heating device 15,
Cooling circulating water water inlet pipe 19 and cooling circulating water return pipe 20 are connected on cooling device 16, cooling circulating water water inlet pipe 19 is connected
There is recirculated water suction pump 21, recirculated water suction pump 21 connects supply tank 24, and cooling circulating water return pipe 20 is connected with recirculated water and returns
Water pump 23, recirculated water back water pump 23 connects supply tank 24, and backwater valve 22 is provided with cooling circulating water return pipe 20, can solve
Certainly circulating water heating with cooling problem, during heating：The valve of each cooperation is adjusted, pipe heating device 15, water warp is passed water through
The pipe heating device crossed on pipeline, and test requirements document temperature is set by temperature controller, so as to reach heating
Purpose；During refrigeration：Each valve export threeway is adjusted, makes recirculated water by pipeline cooling device 16, hereafter open cooling circulation
Water suction pump 21, to pump water in pipeline cooling device 16, treats to be full of water in pipeline cooling device, opens backwater valve 22, while
Cooling circulating water back water pump 20 is opened, heat transfer is formed by with the pipeline in pipeline cooling device, so that recirculated water
Temperature is minimized, then is selected to close the time of cooling device by the device for detecting temperature installed in upstream and downstream water tank.This hair
Bright tail-gate device 7 is windsurfing gate flap piece, is fixed on sand block plate, and the angle adjustable of regulation water level regulation plate 8 crosses water layer 2
The depth of water；The diameter 0.5m, 1.5m long, the diameter 0.5m of pipeline cooling device, length 1.5m of temperature-adjusting heating device of the invention 15,
Cooling circulating water water inlet pipe 19 and a diameter of 0.1m of cooling circulating water return pipe 20；Temperature sensor 27 is TMC50-HD types, temperature
Degree recorder 33 uses 4 passage UX120-006 types, moisture recorder 33 4 temperature sensors 27 of connection, Electromagnetic Flow
The range 0-60L/s of meter 12 is used for monitoring the flow of surface water cycle system, and water pump 13 provides power for surface water cycle；Supply water
Case 24 uses water for whole system is provided；In off-test, or when earth's surface Water in Water Tanks position is too high in experimentation, can beat
The normal closed gate set on return pipe 30 is opened by return pipe 30 by the Water Sproading in tank 1 to supply tank, so as to form whole
The circulation of individual system；The length of earth's surface water tank 36, width and height can be respectively 7m, 0.4m and 1.2m, the height of earth's surface water tank 36
Degree is set to 1.2m and is mainly in view of meeting undercurrent exchange, and does not bump against the lower boundary of earth's surface water tank 36, and width
Setting is the problem for eliminating the side wall backflow that narrow earth's surface water tank causes；Upstream water tank 4 and downstream water tank 5 are connected with earth's surface water tank
Place is waterproof connection；Energy-dissipation orifice plate 6 is the thick poly (methyl methacrylate) plates of 50mm, is uniformly equipped with 192 holes of a diameter of 20mm, energy dissipating
Orifice plate 6 can energy dissipating and guide waterflow stabilization enter earth's surface water tank；The thickness of deposit layer 3 is set to 70cm；Connecting pipe is used
A diameter of 150mm is incubated stainless steel tube, and pipeline cooling device cooling circulating water pipe is supplied using the stainless steel tube of a diameter of 100mm
Waterpipe 25 uses a diameter of 150mm stainless-steel pipes；Supply tank is respectively the plastics of 2m, 1.4m and 1.2m using length, width and height
Case；Pipeline between upstream water tank 4 and water pump 13 and the pipeline between import threeway 17 and downstream water tank 5 are plastics expansion flexible pipe
Mainly to the active force of pipeline after consideration change slope, can effectively solve the problems, such as to become slope using flexible pipeline；Hydraulic pressure support bar
28 and rotation support pole 29 angle of tank can be finely adjusted to simulate with certain side slope situation, device for detecting temperature
10 is temperature measuring set, can directly observe the temperature of measurement upstream and downstream Water in Water Tank.
In a kind of device for monitoring undercurrent Flux of the present invention, energy-dissipation orifice plate 6 energy dissipating and can guide upstream water tank 4
Waterflow stabilization enter in earth's surface water tank 36, tail-gate device 7 can control to flow into downstream water tank 5 and convection current from earth's surface water tank 36
Amount is finely adjusted, and water level regulation plate 8 can control the water level in earth's surface water tank 36, upstream water tank 4 and water by adjusting its angle
Pipeline between pump 13 and the setting that the pipeline between import threeway 17 and downstream water tank 5 is plastics expansion flexible pipe can be fitted effectively
The influence of hydraulic piping should be acted to pipeline because becoming slope, by device for detecting temperature 10 to the surface water in earth's surface water tank 36
Temperature is monitored, and electromagnetic flowmeter 12 is used to monitor pipeline flow, and water pump 13 provides power, pipeline heating for surface water cycle
Device 15 is heated to recirculated water, and pipeline cooling device 16 is cooled down to recirculated water, and self-loopa valve 18 is followed for control
The keying of water in endless tube road, cooling circulating water water inlet pipe 19 is used to be transported to the water of supply tank in pipeline cooling device, cools down
Recirculated water suction pump 21 pumps to the water in supply tank in pipeline cooling device, and backwater valve 22 is cooled down for control pipeline
Water in device enters supply tank, and cooling circulating water back water pump 23 is used to for the water pump in pipeline cooling device to be sent to supply tank
In, supply tank 24 uses water for whole system is provided, and temperature sensor 24 is used to determine the hole coolant-temperature gage of specified location, hydraulic pressure branch
Strut 28 and rotation support pole 29 play the effect of change slope, while used as the supporting construction of tank, return pipe 30 is used to test to be tied
By the Water Sproading in tank to supply tank after beam, temperature controller 31 is used for the temperature of temperature heating rod in control pipeline heater
Degree, the heat transfer that temperature heating rod 32 can produce alternating current is to the recirculated water in pipeline heater, moisture recorder 33
For recording the temperature that temperature sensor is measured, sand block plate 34 is used for barrier deposition thing, prevents deposit from entering upstream and downstream water tank,
Recorder places plate 35 is used for fixed placement moisture recorder 27.
A kind of method for monitoring undercurrent Flux of the invention, using a kind of device for monitoring undercurrent Flux, tool
Body is implemented according to following steps：
Step 1, to deposit is added in earth's surface water tank 36, is then shut off self-loopa valve 18, opens water supply valve 26, beats
Boiling water pump 13, from supply tank 24 to the surface water constant level into earth's surface water tank 36 that supplied water in tank 1；
Step 2, closes water supply valve 26, opens self-loopa valve 18, changes the aperture of water pump 13 and treats that flow reaches experiment and wants
Ask, make surface water stable level；
Step 3, adjusts earth's surface coolant-temperature gage, and preserve the temperature data of moisture recorder record 33 in water temperature change procedure with
And time data；
Step 3.1, opens pipe heating device 15 and surface water is heated into test requirements document maximum temperature, treats that surface water is heated
To test requirements document maximum temperature, pipe heating device 15 is closed；
Surface water is cooled to step 3.2, opening conduits cooling device 16 minimum temperature of requirement of experiment, treats surface water
After being cooled to test requirements document minimum temperature, pipeline cooling device 16 is closed；
Step 3.3, preserves the temperature data and time data of moisture recorder record 33 in water temperature change procedure.
Step 4, the temperature data recorded according to moisture recorder, time data calculate the undercurrent exchange capacity of earth's surface water tank,
Unit area undercurrent exchange capacity computing formula is：
Wherein：κeIt is effective thermal diffusion coefficient m2/ s, C are the specific heat capacity J/m of deposit3/ DEG C, CwIt is the specific heat capacity J/ of water
m3/ DEG C, Ar is 2 temperature sensor temperature amplitude ratios of different depth,
V is riverbed infiltration rate；P is the cycle of temperature change, and Δ z is two of different depth
Air line distance between measurement point.
Step 1 is specifically implemented according to following steps：
Step 1.1, to deposit is added in earth's surface water tank 36, closes self-loopa valve 18, opens water supply valve 26, opens
Water pump 13, opens the first valve 9, opens the 3rd valve 37, and clear water is added in the deposit layer 3 from supply tank 24 to tank 1, makes
Deposit layer reaches saturation state, the i.e. water surface and floods the surface of deposit layer 3 just, and in 1 hour the water surface without decline；
Step 1.2, the angle of adjustment water level regulation plate 8 made the depth of water of water layer 2 reach requirement of experiment water level；
Step 3.1 is specifically implemented according to following steps：
Step 3.1.1, opens pipe heating device 15, and test requirements document maximum temperature is set on temperature controller 31,
Heated at constant temperature；
Step 3.1.2, observes device for detecting temperature 10, after surface water is heated to test requirements document maximum temperature, closes pipe
Road heater 15, closes the first valve 9, closes the 3rd valve 37；
Step 3.2 is specifically implemented according to following steps：
Step 3.2 is specifically implemented according to following steps：
Step 3.2.1, opens the second valve 11 and the 4th valve 38, moves the water to flow into cooling water tank 39；
Step 3.2.1, after water tank to be cooled 39 is full, opens cooling circulation suction pump 21, opens cooling circulating water outlet valve
Door 22；
Step 3.2.2, opens cooling circulating water back water pump 23；
Step 3.2.3, observes device for detecting temperature 10, when temperature is down to test requirements document minimum temperature, closes cooling and follows
Lottery of lotteries water 21；
Step 3.2.4, when the water in cooling water tank 39 is exhausted, closes cooling and loops back water pump 23, is a circulation now
Cycle.
Temperature change cycle P of the invention is to measure temperature by sensor, corresponding temperature change is drawn out to it bent
Line analysis is obtained.
The present invention is it is determined that effective thermal diffusion coefficient κeWhen, survey data for same group of temperature sensor, amplitude and
The water velocity that phase is represented respectively should be consistent, and equation of the riverbed infiltration rate on amplitude is：
Equation of the riverbed infiltration rate on phase be：
It is exactly：vAr=vΔΦ, now just obtain effective thermal diffusion coefficient κe；
Wherein,
The present invention is it is determined that during riverbed infiltration rate v, data, amplitude and phase difference are surveyed for same group of temperature sensor
The water velocity of expression should be consistent, that is, be exactly：vAr=vΔΦ, now, vAr=vΔΦ=v is riverbed infiltration rate.
Embodiment
Assuming that it is 16 DEG C that room temperature is the 16 DEG C i.e. initial temperature of water, requirement of experiment is warmed up to 26 DEG C, cools to 16 DEG C；
Step 1, to deposit is added in earth's surface water tank 36, is then shut off self-loopa valve 18, opens water supply valve 26, beats
Boiling water pump 13, from supply tank 24 to the surface water constant level into earth's surface water tank 36 that supplied water in tank 1, specifically according to following step
It is rapid to implement：
Step 1.1, to deposit is added in earth's surface water tank 36, closes self-loopa valve 18, opens water supply valve 26, opens
Water pump 13, opens the first valve 9, opens the 3rd valve 37, and clear water is added in the deposit layer 3 from supply tank 24 to tank 1, makes
Deposit layer reaches saturation state, the i.e. water surface and floods the surface of deposit layer 3 just, and in 1 hour the water surface without decline；
Step 1.2, the angle of adjustment water level regulation plate 8 made the depth of water of water layer 2 reach requirement of experiment water level；
Step 2, closes water supply valve 26, opens self-loopa valve 18, changes the aperture of water pump 13 and treats that flow reaches experiment and wants
Ask, make surface water stable level；
Step 3, adjusts earth's surface coolant-temperature gage, and preserve the temperature data of moisture recorder record 33 in water temperature change procedure with
And time data；
Step 3.1, opens pipe heating device 15 and surface water is heated into test requirements document maximum temperature, treats that surface water is heated
After 26 DEG C, pipe heating device 15 is closed, specifically implemented according to following steps：
Step 3.1.1, opens pipe heating device 15, and 26 DEG C of constant temperature, heated at constant temperature are set on temperature controller 31；
Step 3.1.2, observes device for detecting temperature 10, after surface water is heated to 26 DEG C, closes pipe heating device 15,
The first valve 9 is closed, the 3rd valve 37 is closed；
Step 3.2, opening conduits cooling device 16 after earth's surface is water-cooled to 16 DEG C, closes pipeline cooling device 16, tool
Body is implemented according to following steps：
Step 3.2.1, opens the second valve 11 and the 4th valve 38, moves the water to flow into cooling water tank 39；
Step 3.2.1, after water tank to be cooled is full, opens cooling circulation suction pump 21, treats that the reclaimed water of pipeline cooling device 16 expires,
Open cooling circulating water flowing water Valve 22；
Step 3.2.2, opens cooling circulating water back water pump 23；
Step 3.2.3, observes device for detecting temperature 10, when temperature is down to 16 DEG C, closes cooling circulation and draws water 21；
Step 3.2.4, when the water in cooling water tank 39 is exhausted, closes cooling and loops back water pump 23, is a circulation now
Cycle.
Step 3.3, preserves the temperature data and time data of moisture recorder record 33 in water temperature change procedure.
Step 4, the temperature data recorded according to moisture recorder, time data calculate the undercurrent exchange capacity of earth's surface water tank,
Unit area undercurrent exchange capacity computing formula is：
Wherein：κeIt is effective thermal diffusion coefficient m2/ s, C are the specific heat capacity J/m of deposit3/ DEG C, CwIt is the specific heat capacity J/ of water
m3/ DEG C, Ar is 2 temperature sensor temperature amplitude ratios of different depth,
V is riverbed infiltration rate；P is the cycle of temperature change, and Δ z is two of different depth
Air line distance between measurement point.
Claims (10)
1. it is a kind of monitor undercurrent Flux device, it is characterised in that it is vertical along the tank (1) inwall including tank (1)
Two sand block plates (34) being parallel to each other are provided with, tank (1) is divided into upstream water tank (4), surface water by the sand block plate (34)
Case (36), downstream water tank (5), the region between two sand block plates (34) are earth's surface water tank (36), the earth's surface water tank
(36) inside was divided into water layer (2), deposit layer (3) under upper, and upstream water tank (4) bottom is connected by pipeline
Water pump (13) is connected with, the water pump (13) is connected with outlet threeway (14) by pipeline, and outlet threeway (14) is by pipeline
Pipe heating device (15) and pipeline cooling device (16) are respectively communicated with, the pipe heating device (15) and tube-cooled are filled
Put (16) and be communicated with import threeway (17) jointly by pipeline, the import threeway (17) is by pipeline and downstream water tank (5) bottom
Portion connects, and the import threeway (17) is also associated with water supply line (25), and the water supply line (25) is communicated with supply tank (24),
The madial wall of the deposit layer (3) is provided with temperature sensor (27) array, the temperature sensor (27) is by leading
Line is connected with moisture recorder (33), and the pipeline between the import threeway (17) and downstream water tank (5) is provided with self-loopa valve
Door (18), water supply valve (26) is provided with the water supply line (25).
2. a kind of device for monitoring undercurrent Flux according to claim 1, it is characterised in that tube-cooled dress
Putting (16) includes cooling water tank (39), and outlet threeway (14) is by pipeline communication cooling water tank (39), the cooling water tank
(39) it is communicated with import threeway (17) jointly by pipeline, the cooling water tank (39) is also communicated with cooling circulating water water inlet pipe
(19) and cooling circulating water return pipe (20), the cooling circulating water water inlet pipe (19) is connected with recirculated water suction pump (21), institute
State cooling circulating water suction pump (21) and connect the supply tank (24), the cooling circulating water return pipe (20) is connected with cooling and follows
Ring water back water pump (23), the cooling circulating water back water pump (23) connects the supply tank (24), the cooling circulating water backwater
Backwater valve (22) is provided with pipe (20), energy-dissipation orifice plate (6) is provided between the upstream water tank (4) and excessively water layer (2), it is described
Multiple holes are uniformly offered on energy-dissipation orifice plate (6), the energy-dissipation orifice plate (6) is fixed on sand block plate (34), the downstream water tank
(5) and cross between water layer (2) and be provided with tail-gate device (7), the tail-gate device (7) is fixed on sand block plate (34), it is described under
Water level regulation plate (8) is provided with swimming case (5).
3. it is according to claim 2 it is a kind of monitor undercurrent Flux device, it is characterised in that the upstream water tank
(4) pipeline and between water pump (13) is disposed as plastics with the pipeline between the import threeway (17) and downstream water tank (5)
Bellows, the pipeline between the upstream water tank (4) and water pump (13) is provided with electromagnetic flowmeter (12), the outlet threeway
(14) the first valve (9), and outlet threeway (14) and cooling are provided with the pipeline and between pipe heating device (15)
The second valve (11) is provided with pipeline between water tank (39), between the pipe heating device (15) and import threeway (17)
Pipeline on be provided with the 3rd valve (37), is provided with the pipeline between the cooling water tank (39) and import threeway (17)
Four valves (38).
4. a kind of device of the monitoring undercurrent Flux according to Claim 1-3 any one, it is characterised in that institute
State downstream water tank (5) bottom and be also associated with return pipe (30), return pipe (30) other end connects supply tank (24), described time
Water pipe is provided with normal closed gate on (30).
5. it is according to claim 4 it is a kind of monitor undercurrent Flux device, it is characterised in that the earth's surface water tank
(36) cuboid is set to, two sand block plates (34) are sequentially arranged along the length direction of the earth's surface water tank (36), described
Temperature sensor (27) equidistantly distributed, temperature sensor (27) edge at 5m in the middle of the length direction of earth's surface water tank (36)
Earth's surface water tank (36) depth direction is 10 under deposit layer (3), 20,30,50cm positions are sequentially arranged.
6. it is according to claim 5 it is a kind of monitor undercurrent Flux device, it is characterised in that the upstream water tank
(4) and in downstream water tank (5) it is provided with device for detecting temperature (10).
7. it is according to claim 6 it is a kind of monitor undercurrent Flux device, it is characterised in that tank (1) bottom
Portion is provided with hydraulic pressure support bar (28) and rotation support pole (29), and recorder is installed with tank (1) lateral wall
Plate (35) is placed, the moisture recorder (31) is fixed on recorder and places on plate (35).
8. a kind of device for monitoring undercurrent Flux according to claim 7, it is characterised in that pipeline heating dress
Putting (15) includes temperature controller (31) and temperature heating rod (32).
9. a kind of method for monitoring undercurrent Flux, it is characterised in that using monitoring undercurrent as claimed in claim 1 a kind of
The device of Flux, specifically implements according to following steps：
Step 1, to deposit is added in earth's surface water tank (36), is then shut off self-loopa valve (18), opens water supply valve (26),
Water pump (13) is opened, is supplied water to the surface water constant level in earth's surface water tank (36) in tank (1) from supply tank (24)；
Step 2, closes water supply valve (26), opens self-loopa valve (18), changes water pump (13) aperture and treats that flow reaches experiment
It is required that, make surface water stable level；
Step 3, adjusts earth's surface coolant-temperature gage, and preserve in water temperature change procedure the temperature data of moisture recorder record (33) and
Time data；
Step 3.1, opens pipe heating device (15) and surface water is heated into test requirements document maximum temperature, treats that surface water is heated to
After test requirements document maximum temperature, pipe heating device (15) is closed；
Step 3.2, opening conduits cooling device (16), surface water is cooled to the minimum temperature of requirement of experiment, treats earth's surface water-cooled
But to after test requirements document minimum temperature, pipeline cooling device (16) is closed；
Step 3.3, preserves the temperature data and time data of moisture recorder record (33) in water temperature change procedure.
Step 4, the temperature data recorded according to moisture recorder, time data calculate the undercurrent exchange capacity of earth's surface water tank, unit
Area undercurrent exchange capacity computing formula is：
Wherein：κeIt is effective thermal diffusion coefficient (m2/ s), C is the specific heat capacity (J/m of deposit3/ DEG C), CwIt is the specific heat capacity (J/ of water
m3/ DEG C), Ar is 2 temperature sensor temperature amplitude ratios of different depth,
V is riverbed infiltration rate；P is the cycle of temperature change, and Δ z is two measurements of different depth
Air line distance between point.
10. it is according to claim 9 it is a kind of monitor undercurrent Flux method, it is characterised in that step 1 specifically according to
Following steps are implemented：
Step 1.1, to deposit is added in earth's surface water tank (36), closes self-loopa valve (18), opens water supply valve (26), beats
Boiling water pump (13), open the first valve (9), open the 3rd valve (37), from deposit layer from supply tank (24) to tank (1)
(3) clear water is added in, deposit layer is reached saturation state, the i.e. water surface and is flooded deposit layer (3) surface just, and in 1 hour
The water surface is without decline；
Step 1.2, the angle of adjustment water level regulation plate (8) made the depth of water of water layer (2) reach requirement of experiment water level；
Step 3.1 is specifically implemented according to following steps：
Step 3.1.1, opens pipe heating device (15), and test requirements document maximum temperature is set on temperature controller (31),
Heated at constant temperature；
Step 3.1.2, observation device for detecting temperature (10) after surface water is heated to test requirements document maximum temperature, closes pipeline
Heater (15), closes the first valve (9), closes the 3rd valve (37)；
Step 3.2 is specifically implemented according to following steps：
Step 3.2.1, opens the second valve (11) and the 4th valve (38), moves the water to flow into cooling water tank (39)；
Step 3.2.1, after water tank (39) to be cooled is full, opens cooling circulation suction pump (21), opens cooling circulating water outlet valve
Door (22)；
Step 3.2.2, opens cooling circulating water back water pump (23)；
Step 3.2.3, observation device for detecting temperature (10), when temperature is down to test requirements document minimum temperature, closes cooling circulation
Draw water (21)；
Step 3.2.4, when the water in cooling water tank (39) is exhausted, closes cooling and loops back water pump (23), is a circulation now
Cycle.
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| CN108982595A (en) * | 2018-05-03 | 2018-12-11 | 河海大学 | Simulate field high density pollution object undercurrent exchange in-situ test device and test method |
| CN109632575A (en) * | 2018-11-01 | 2019-04-16 | 西安理工大学 | A kind of device and its monitoring method monitoring Riparian Zone undercurrent exchange rate |
| CN109799324A (en) * | 2019-01-11 | 2019-05-24 | 河海大学 | A kind of lateral undercurrent exchange measuring device in river and its measurement method |
| CN110095384A (en) * | 2019-04-11 | 2019-08-06 | 西安理工大学 | A kind of indoor set and monitoring method monitoring undercurrent Flux |
| CN112484959A (en) * | 2020-10-30 | 2021-03-12 | 中国地质大学（北京） | Subsurface flow exchange research experimental device capable of changing surface water and underground water replenishing and discharging relation |
| CN112556985A (en) * | 2020-12-16 | 2021-03-26 | 同济大学 | Riparian zone lateral undercurrent exchange simulation device with adjustable length and test method |
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| CN115931644A (en) * | 2022-11-25 | 2023-04-07 | 河海大学 | Undercurrent exchange flux measuring method and device |
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| CN108982595A (en) * | 2018-05-03 | 2018-12-11 | 河海大学 | Simulate field high density pollution object undercurrent exchange in-situ test device and test method |
| CN109632575A (en) * | 2018-11-01 | 2019-04-16 | 西安理工大学 | A kind of device and its monitoring method monitoring Riparian Zone undercurrent exchange rate |
| CN109799324A (en) * | 2019-01-11 | 2019-05-24 | 河海大学 | A kind of lateral undercurrent exchange measuring device in river and its measurement method |
| CN110095384A (en) * | 2019-04-11 | 2019-08-06 | 西安理工大学 | A kind of indoor set and monitoring method monitoring undercurrent Flux |
| CN112484959A (en) * | 2020-10-30 | 2021-03-12 | 中国地质大学（北京） | Subsurface flow exchange research experimental device capable of changing surface water and underground water replenishing and discharging relation |
| CN112556985A (en) * | 2020-12-16 | 2021-03-26 | 同济大学 | Riparian zone lateral undercurrent exchange simulation device with adjustable length and test method |
| CN112556985B (en) * | 2020-12-16 | 2021-10-08 | 同济大学 | Riparian zone lateral undercurrent exchange simulation device with adjustable length and test method |
| CN112816177A (en) * | 2020-12-30 | 2021-05-18 | 同济大学 | Riparian zone lateral undercurrent exchange process simulation device based on dye tracing |
| CN112816177B (en) * | 2020-12-30 | 2021-12-07 | 同济大学 | Riparian zone lateral undercurrent exchange process simulation method based on dye tracing |
| CN114112300A (en) * | 2021-11-22 | 2022-03-01 | 同济大学 | Tidal river beach lateral undercurrent exchange simulation device and test method |
| CN115931644A (en) * | 2022-11-25 | 2023-04-07 | 河海大学 | Undercurrent exchange flux measuring method and device |
| CN115931644B (en) * | 2022-11-25 | 2023-09-15 | 河海大学 | Undercurrent exchange flux measuring method and device |
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