CN104991042B - Seashore reservoir indoor desalination and salt resistance experimental simulation system and simulation method thereof - Google Patents
Seashore reservoir indoor desalination and salt resistance experimental simulation system and simulation method thereof Download PDFInfo
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- CN104991042B CN104991042B CN201510426957.7A CN201510426957A CN104991042B CN 104991042 B CN104991042 B CN 104991042B CN 201510426957 A CN201510426957 A CN 201510426957A CN 104991042 B CN104991042 B CN 104991042B
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Abstract
The invention discloses a seashore reservoir indoor desalination and salt resistance experimental simulation system and a simulation method thereof. The simulation system comprises a fresh water tank, a flat water tank, a saline water tank, a raining system, an evaporating system, a tidal wave generator, a submerged pump, a simulated seashore reservoir, and pressure measuring holes; wherein in the length direction, a fresh water area, a sand area, and a saline water area are arranged on the flat water tank, the fresh water area is communicated with the fresh water tank, the tidal wave generator is arranged between the saline water tank and the saline water area, the saline water tank is connected to the saline water area through the submerged pump and is used to adjust the salinity of the saline water area; the raining system and evaporating system are arranged above the sand area, and pressure measuring holes, which are used to monitor the pressure changes in different positions of the flat water tank in real time, are arranged on the backside of the flat water tank in different depths, and are connected to a pressure measuring pipe. The provided system and method can carry out researches on seashore reservoir desalination/desalting and seawater intrusion under complicated dynamic effects so as to provide scientific guides for the construction, operation, and management of a seashore reservoir.
Description
Technical field
The present invention relates to the desalination of a kind of seashore reservoir indoor and hinder salty experimental simulation system and analogy method thereof, belong to seashore water
Storehouse experimental simulation system.
Background technology
Along with Chinese national economy sustained and rapid development, shortage of water resources problem is increasingly severe, especially coastal plain warp
Ji developed regions, the water that passes by (foreign water) is many, and freshwater resources spatial and temporal distributions is uneven.This area water resources development and utilization master
Storage of river network to be leaned on, can regulating and storing, the time is short, the water yield of regulating and storing is limited.Building seashore reservoir is at present at such regional water
The effective ways of artificial regulatory.Explore the coastal area attached most importance to seashore reservoir to store fresh water engineering, change current coastal area
The water resource space-time configuration mode regulated and stored based on plain river network, is to solve the shortage of coastal economy highly developed regional water
Effective way.
The most domestic seashore reservoir having built a part, building of these seashore reservoirs alleviates coastal area shortage
The contradiction of freshwater resources, serves good naural benefit and economic results in society, but there is series of problems simultaneously.
Subject matter is how reservoir water body salinity controls, reduces.Under complicated dynamic action, the run time that salinity transporting difference,
Show different effects.Mainly include two aspects: mainly include two aspects: (1) seashore reservoir initial operating stage
Desalination/desalination；(2) in running, seawater invasion problem.
Research seashore water reservoir system problems challenge is how better account for its many kinetic factor being subject to such as:
Rainfall, evaporation, river reservoir inflow, Lu Yuan subsoil water, reservoir level and the impact of tide.Thus obtain it in complexity
Seashore water reservoir system Hydrodynamic Process under power power effect, and salinity transport process and effect thereof, and then effectively catching mistake
Border water and the problem changing area, coastal plain freshwater resources spatial and temporal distributions inequality.
Present stage, for the research of seashore reservoir, in the case of mathematical model still can not disclose phenomenon well, by
The inevitable choice that result intuitively is seashore reservoir analysis is obtained in indoor model.But, most experiments model has been carried out relatively
Many simplification, are concentrated mainly on the desalination/desalination of seashore reservoir and the factor of influence of seawater invasion research and salinity transport mechanics
Qualitative or consideration that part is quantitative on, and lack and consider under complicated dynamic action, for seashore reservoir-subsoil water-
Earth's surface between coastal waters-groundwater dynamics mechanism and the transition process of salinity and the research of rule.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides the desalination resistance of a kind of seashore reservoir indoor
Salty experimental simulation system and analogy method thereof, it is possible to seashore reservoir desalination/desalination under considering complicated dynamic action
Carry out Experimental Research with seawater invasion, for seashore reservoir construction, run and manage offer scientific guidance.
Technical scheme: for achieving the above object, a kind of seashore reservoir indoor desalination of the present invention hinders salty experimental simulation system,
Including fresh-water tank, flat board tank, brine tank, rainfall system, vapo(u)rization system, tidal wave maker, immersible pump, simulation sea
Bank reservoir and pressure tap, described flat board tank sets gradually along its length as fresh water district, silt district and salt pool, fresh water
District connects with fresh-water tank, and fresh water district is provided with inlet valve, is provided with tidal wave maker, brine tank between brine tank and salt pool
Be connected to adjust the salinity in salt pool by immersible pump and salt pool, salt pool is provided with flowing water Valve；Described rainfall system
It is positioned at above silt district with vapo(u)rization system, is provided with some rows in order to monitoring tank in real time not at flat board tank back side different depth
The pressure tap of the pressure change of co-located, pressure tap connects with pressure-measuring pipe.
As preferably, described rainfall system includes rainer and controller, and rainer includes several rainfall shower nozzles,
Rainfall shower nozzle is connected with water pump by pipeline, and water pump controls the water yield of the adjustment of rotational speed water pump of water pump by controller.
As preferably, described vapo(u)rization system comprises the heating lamp of several brightness-adjustables, temperature sensing probe, moisture content spy
Head and humidity detection device, insert some row's temperature sensing probes and moisture content probe at flat board tank different depth, flat
The outside erection of plate tank has humidity detection device, and described temperature sensing probe, moisture content probe and humidity detection device are equal
It is connected with controller.
As preferably, it is placed with the red ball float utilizing aberration quickly to identify water level in described pressure-measuring pipe, at flat board tank
Dead ahead is provided with the camera system for shooting red ball float, it is simple to quickly identify water level.
As preferably, it is provided with inflated type between silt district and salt pool and may move water fender.
As preferably, if being provided with dry drainage degree probe hole in the silt district of described flat board tank different depth, pop one's head in salinity
Hole is inserted into monitoring in real time the salinity of salinity and monitors probe in real time, and salinity is monitored probe in real time and is connected with controller.
As preferably, in the silt district of described flat board tank different depth, it is provided with some round gap water sampling holes, in reality
Extraction pore water, monitoring hole water substance concentration (pollutant etc.) change it is interrupted during testing.
The analogy method of the experimental simulation system that a kind of above-mentioned seashore reservoir indoor desalination resistance is salty, comprises the following steps:
1) configuration NaCl and FD&Cred40 mixed solution, takes out a part of mixed solution and cleans quartz sand, remaining
Mixed solution loads brine tank as sea water, adds deionized water and the most clear by set sand mold in flat board tank silt district
The quartz sand washed, adds deionized water before adding sand, then adds sand, and the process adding sand is slowly uniform, is careful not to make sand reveal
Go out liquid level, and during sand loading, notice that aerofluxus ensures that chiltern is saturated, check bubble and chiltern homogeneity；
2) open inlet valve, checking in fresh water pipeline whether there is bubble, if having, must slowly drive out of；
3) inserting water fender in the set position of experiment, inflation makes it fix, and i.e. completes the setting of simulation seashore reservoir；
4) water level of simulation seashore reservoir is adjusted, if higher than set seashore reservoir filling position height, then opening salt pool
Flowing water Valve discharges water to set height；If less than setting, then opening inlet valve, moisturizing to set height；
5) open tidal wave maker, be not switched on its connection valve interval with saline, adjust tidal wave amplitude, average sea
Position, cycle；
6) open the connection valve that tidal wave maker is interval with saline, saline injected in salt pool with the form of tide,
The immersible pump simultaneously opened in brine tank pumps into high salinity brine in salt pool；And in experimentation at set intervals
In brine tank, add high concentration saline, make salinity approximation in salt pool keep constant；Open fresh-water tank and fresh water district simultaneously
Between inlet valve, make fresh water enter fresh water district；
7) according to set condition, fresh-water flow, rainfall intensity are controlled by controller；
8) simultaneously, opening camera system timing and take pictures, interval 15s once, carries out captured in real-time to pressure-measuring pipe, obtains
Pressure information；Utilize salinity to monitor probe in real time and obtain the salinity of test point in real time；Utilize the real-time monitoring of environmental of vapo(u)rization system
Evaporation number；And timing samples from thief hole；
9) fresh water in fresh water district to silt district invade, salt wedge constantly retreats, until salt wedge no longer retreat become constant time
Stop experiment.
Beneficial effect: the seashore reservoir indoor desalination of the present invention hinders salty experimental simulation system, has considered rainfall, steaming
Send out, many-sided dynamic effect such as river reservoir inflow, Lu Yuan subsoil water, reservoir level and tidal action, and by installing
The modes such as switch, metering device that control reach to control flexibly and change the effect of these factors, taken pictures by setting, illuminate
Experimentation is monitored by system in real time, may move waterproof water fender by described inflated type and arranges simulation seashore reservoir
Condition, such that it is able to research under different condition control the desalination of seashore reservoir and the mechanism of seawater invasion, for seashore reservoir
Construction, run and manage offer scientific guidance.
Accompanying drawing explanation
Fig. 1 is the device schematic front view that the present invention is provided with rainfall system；
Fig. 2 is the schematic front view that the present invention is provided with vapo(u)rization system；
Fig. 3 is the back of the body TV structure schematic diagram of Fig. 2；
Fig. 4 is that schematic diagram is arranged in the space of the present invention.
1 fresh-water tank in figure；2 flat board tanks；2-1 fresh water district；2-2 silt district；2-3 salt pool；3 fill
Gas formula may move water fender；4 rainfall systems；5 vapo(u)rization systems；6 tidal wave makers；7 immersible pumps；8 salt
Water tank；9 seashore reservoirs；10 pressure-measuring pipe systems；11 salinity monitor probe in real time；12 pore water thief holes；
13 temperature sensing probes；14 moisture content probes；15 ambient humidity monitoring devices；16 camera systems；17 is black
Color curtain；18 illuminators.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
As shown in Figures 1 to 4, a kind of seashore reservoir indoor desalination of the present invention hinders salty experimental simulation system, including putting down
Plate tank 2, rainfall system 4, vapo(u)rization system, pressure-measuring pipe system 10, salinity real-time sensing system, tidal wave maker 6,
Fresh-water tank 1 and brine tank 8, illuminator 18, camera system 16.
Described flat board tank 2 device vertical coastline plane utilize front for lucite wall, in order to make whole experiment
Process obtains good visual effect, and the back side is stainless steel steel plate, the most both can ensure antirust, again can intensifier
Stability in the large, it is often more important that can arrange on steel plate pressure-measuring pipe 10, salinity monitor in real time probe 11, sampling
Hole 12 grade is in order to monitor experimental data.At flat board tank 2 back side, spaced set has 5 row's thief holes 12, often arranges from upper
Equidistantly it is provided with 10 to lower, takes a sample test pore water salinity in order to timing.Additionally, be placed equidistant 2 row's pressure taps,
Often arranging equidistant arrangement from top to bottom and be provided with 4 pressure taps, pressure tap connects pressure-measuring pipe and constitutes described pressure-measuring pipe system 10,
Pressure change in order to monitoring tank diverse location in real time.It is placed equidistant the salinity probe hole of 3 row 2 row, inserts before experiment
Entering salinity and monitor probe 11 in real time, salinity is monitored probe 11 in real time and is connected with controller, and controller is connected with computer, by
This i.e. constitutes described salinity sensing device, this so can order salt angle value real time record and be shown in computer, flat board
Tank 2 is in order to preferably highlight these monitoring effects, and take into account three-dimensional research, and tank width is set to 10cm.
Place red ball float on described pressure-measuring pipe setting-out position, in order to preferably take pictures, the head of pressure-measuring pipe be put red floating
Ball, quickly identifies water level by aberration.White water pipe, very poor with water level identification in the past, is difficult to quickly read SEA LEVEL VARIATION,
By this mode, it is possible to comparatively fast identify water level.
Described flat board tank 2 sets gradually as fresh water district 2-1, silt district 2-2 and salt pool 2-3 along its length, between
Be spaced with filter screen and permeable plate, in order to simulate seashore reservoir 9 and cut-pff wall, salt pool 2-3 and silt district 2-2 it
Between the setting position of experiment inflated type be set may move water fender 3, the most inflatable water fender 3 that be may move by inflated type is fixed
On flume wall, it is ensured that block water the effective Environment of Reservoirs of formation, inflated type can be reduced by venting again and may move water fender 3 liang
Side and cell wall friction, thus inflated type be may move water fender 3 and take out and recycle with circulation, reset new reservoir
Environment.
In the present invention, the height of described flat board tank 2 is 80cm, a length of 5cm of fresh water district 2-1, silt district
The a length of 340cm of 2-2, the silt height of silt district 2-2 is 65cm, a length of 5cm of salt pool 2-3.
Described rainfall system 4 is arranged on 2-2 top, silt district, and span is 340cm, and width is tank width 10cm, bag
Including rainer and controller, rainer is made up of several rainfall shower nozzles and second pipe, rainfall shower nozzle interval 5cm,
Being provided with second flow valve on second pipe, second pipe is connected with water pump, and water pump is connected with controller, controls rain respectively
Strong and raindrop size, in order to simulate the condition of raining of varying strength, thus simulates different weather conditions, simulates different
Subsoil water and reservoir level state.
For preferably analyzing evaporation with rainfall to seashore reservoir 9 and the influence of littoral zone, described vapo(u)rization system 5 is permissible
It is respectively provided with at the 2-2 top, silt district of another set of analog systems, identical, also with the position that described rainfall system 4 is arranged
Can arrange on original flat board tank 2 top, span is 340cm, and width is tank width 10cm, including adding
Thermolamp, temperature sensing probe 13, moisture content probe 14, ambient humidity monitoring device 15, the most some heating lamps,
It is divided into 10cm, by using the heating lamp of scalable intensity, uniformly heats flat board tank 2 is internal, can produce
Raw different temperature conditions；In tank, different depth position 2cm, 20cm, 40cm, 60cm, 78cm insert 5 row
Be spaced apart the temperature sensing probe 13 of 50cm, tank different depth 2cm, 10cm, 15cm, 20cm, 25cm,
The moisture content probe 14 that 6 column pitch are 150cm, 100cm, 50cm, 20cm, 10cm is inserted at 30cm, in order to
The moisture content of monitoring diverse location；Ambient humidity monitoring device real time record ambient humidity is set up outside flat board tank 2；
Temperature sensing probe 13, moisture content probe 14 and ambient humidity monitoring device are all connected with controller, owing to controller can
To obtain temperature, water-cut trend in real time, the corresponding relation of evaporation can be obtained by conversion, thus control and change
Darkening can change by force the evaporability on 2-2 surface, silt district, has so just simulated different condition in flat board tank 2
Under evaporation.
Described fresh-water tank 1, brine tank 8 respectively in order to as the input of fresh water and saline and control zone, to be all set to 60L,
Fresh-water tank 1 passes through overflow mechanism by water lev el control at level altitude, and has flow valve, flow control in the connection of fresh water pipeline enclosure
System meter is in order to control fresh-water flow condition, and brine tank 8, equipped with the saline worked good by certain match ratio, passes through connecting pipe
Saline pumps into saline district 2-3, additionally, due to the continually entering of fresh water, in brine tank 8, brine salinities can be diluted,
Therefore again monitored every 1 hour and adjust brine strength so that it is in experimentation, keeping substantially constant；At brine tank
Putting into immersible pump 7 in 8, immersible pump 7 other end connects the first pipeline, is inserted into salt pool 2-3, in an experiment by height
Concentration saline pumps into saline district 2-3, its object is to solve in the 2-3 of salt pool simulated seawater because of density current effect and causes salt
Degree of spending is layered, the problem not meeting reality；
Described tidal wave maker 6 system uses communication apparatus to connect brine tank 8 and salt pool 2-3, utilizes dynamic linker
Principle makes salt pool 2-3 keep the most consistent with tidal wave maker 6 middle water level, thus obtains approximating the tidal wave position Y-time
T sine wave signal, to simulate the real tidal wave of approximation；
For the ease of gather experimental result, described flat board tank 2 in the space that light is closed, also include illuminator 18,
Camera system 16 and white background curtain；Described illuminator 18 is arranged in the space that described light is closed for providing
Light source；Described camera system 16 is arranged on the dead ahead of described flat board tank, is used for shooting experimentation and result；Institute
State white background curtain and be arranged on the dead astern of described flat board tank as shooting environmental background colour；
Described camera system 16 be two with brand with the camera of style, be separately positioned on apart from described flat board tank identical
Distance, at equal angular, the finding a view of two cameras have at 1/3rd overlapping；At camera lay down location, black curtain is set
Curtain 17, only makes camera lens lean out from black curtain 17.
Through absorption test, device uses FD&Cred40 and the invasion of NaCl solution simulated seawater, it is ensured that tested
In journey, tracer total amount does not decays；Use the every 15s of high-definition digital photographing unit to gather and once test photo, it is ensured that be omnidistance
The change procedure of record salt water encroachment.Apparatus of the present invention can be visually seen the overall process of salt water encroachment under tidal action, reaches
Purpose to further investigation Saline Intrusion Mechanism.
The analogy method of the experimental simulation system that the desalination resistance of a kind of seashore reservoir indoor described above is salty, comprises the following steps:
Prepare before a, experiment
1) configure use NaCl and FD&Cred40 (1.6g/L) the mixed solution 50L of PPT=33.4, take out one
Dividing mixed solution to clean quartz sand, remaining mixed solution loads brine tank 8 as sea water, by set sand mold at flat board
Tank 2 silt district 2-2 adds deionized water and the quartz sand cleaned, before adding sand, adds about 10cm deionized water,
Then adding sand, the process adding sand is slowly uniform, is careful not to make sand expose liquid level, and notices during sand loading that aerofluxus ensures chiltern
Saturated, often add 10cm and pat tank, check bubble and chiltern homogeneity；
2) open inlet valve, checking in fresh water pipeline whether there is bubble, if having, must slowly drive out of；
3) inserting water fender in the set position of experiment, inflation makes it fix, and i.e. completes setting of simulation seashore reservoir 9
Fixed；
4) water level of simulation seashore reservoir 9 is adjusted, if higher than set seashore reservoir 9 water storage level height, then opening salt
Pool 2-3 flowing water Valve discharges water to set height；If less than setting, then opening inlet valve, moisturizing to set height
Degree；
5) open tidal wave maker 6, adjust tidal wave amplitude, average sea position, cycle etc.；
Experimental procedure
A) inlet valve between tidal wave maker 6 and fresh-water tank 1 and fresh water district 2-1 is opened, by saline with the shape of tide
State is injected in the 2-3 of salt pool, and in experimentation, a period of time adds high concentration saline, makes salinity approximation keep constant；
B) according to set condition, fresh-water flow, rainfall intensity are controlled by controller；
C) simultaneously, opening camera timing and take pictures, interval 15s is once；Utilize the digital camera of two same settings to survey
Pressure pipe carries out captured in real-time, obtains pressure information；Utilize salinity to monitor probe 11 in real time and obtain the salinity of test point in real time；
Utilize vapo(u)rization system real-time monitoring of environmental evaporation number；And timing samples from thief hole 12；
D) fresh water of fresh water district 2-1 is invaded to silt district 2-2, and salt wedge constantly retreats, and treats that salt wedge no longer retreats and becomes
Experiment is stopped time constant.
In the present invention, it is also possible to utilize the experimentation of this unit simulation seawater invasion, when salt pool 2-3 saline to
Silt is invaded, and forms salt wedge, and when salt wedge is in change, experiment stops.
In the present invention, 1) freshwater input flow, by the fresh-water flow device arranged, the control to fresh-water flow can be realized
System, and underground, surface water initial conditions can be respectively provided with.
2) brine salinities, by brine salinities in monitoring and control brine tank 8, can ensure salt in whole experimentation
Pool 2-3 brine strength does not changes.
3) the bed ripples substrate gradient, bed ripples base slope height and length, can empirically impose a condition in the Preparatory work of experiment stage and add
Sand, thus complete the setting of above several condition.
4) simulation cut-pff wall insertion depth, simulation seashore reservoir 9 dykes and dams height, this experimental provision utilizes inflated type may move
Water fender 3, the most inflatable is fixed on water fender on flume wall, it is ensured that block water the effective Environment of Reservoirs of formation, can pass through again
Venting reduces water fender both sides and cell wall friction, thus is taken out by water fender and recycle with circulation, resets new water
Lab environment；Cut-pff wall insertion depth and dykes and dams height thus can be set flexibly.
5) tidal wave signal period, tidal wave signal amplitude and average sea position (i.e. equilbrium position).These three factor is by tide
Ripple maker 6 is arranged, and tidal wave maker 6 system uses communication apparatus to connect brine tank 8 and salt pool 2-3, utilizes dynamic
State law of connected vessels makes salt pool 2-3 keep the most consistent with tidal wave maker 6 middle water level, thus obtains approximating tidal wave position
Put Y-time t sine wave signal, with simulate approximation real tidal wave, tidal wave maker 6 include transformator, rotate bar,
The structures such as semi-movable runner, can be configured above three condition.
6) rainfall intensity, rainer is made up of several rainfall shower nozzles and pipeline, and rainfall shower nozzle interval 5cm, pipeline is even
Connected control system, controls raininess and raindrop size, respectively in order to simulate the condition of raining of varying strength.
7) evaporation intensity, vapo(u)rization system 5 by heating lamp, temperature probe 13 and sensor-based system thereof, moisture content probe 14 and
Its sensor-based system, ambient humidity monitoring device 15 form, by the control of heating lamp intensity and change, simulation difference
At a temperature of evaporating state.And by temperature probe 13 and sensor-based system thereof, temperature is monitored, visited by moisture content
14 and sensor-based system the saturation of silt district 2-2 is monitored, by ambient humidity monitoring device 15 to environment
Humidity is monitored, and is changed by temperature, moisture content, the variation tendency of humidity, can obtain the correspondence of evaporation
Relation, thus control and change light intensity to change the evaporability on 2-2 surface, silt district, the most just simulation
Go out the evaporation under different condition.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (7)
1. the experimental simulation system that a seashore reservoir indoor desalination resistance is salty, it is characterised in that: include fresh-water tank, flat board
Tank, brine tank, rainfall system, vapo(u)rization system, tidal wave maker, immersible pump and pressure tap, described flat board tank edge
Length direction sets gradually as fresh water district, silt district and salt pool, and fresh water district connects with fresh-water tank, and fresh water district is provided with into water
Valve, is provided with tidal wave maker between brine tank and salt pool, brine tank is connected to adjust by immersible pump and salt pool
The salinity in salt pool, salt pool is provided with flowing water Valve；Described rainfall system and vapo(u)rization system are positioned at the top in silt district,
Flat board tank back side different depth is provided with some rows pressure tap in order to monitoring tank diverse location pressure change in real time, pressure measurement
Hole connects with pressure-measuring pipe；Described rainfall system includes rainer and controller, and rainer includes several rainfall shower nozzles,
Rainfall shower nozzle is connected with water pump by pipeline, and water pump controls the water yield of the adjustment of rotational speed water pump of water pump by controller.
The experimental simulation system that seashore reservoir indoor the most according to claim 1 desalination resistance is salty, it is characterised in that:
Described vapo(u)rization system comprises the heating lamp of several brightness-adjustables, temperature sensing probe, moisture content probe and humidity detection dress
Put, insert some row's temperature sensing probes and moisture content probe at flat board tank different depth, at the outside frame of flat board tank
Being provided with humidity detection device, described temperature sensing probe, moisture content probe and humidity detection device are all connected with controller.
The experimental simulation system that seashore reservoir indoor the most according to claim 2 desalination resistance is salty, it is characterised in that:
Be placed with the red ball float utilizing aberration quickly to identify water level in described pressure-measuring pipe, the dead ahead at flat board tank be provided with for
The camera system of the red ball float of shooting.
The experimental simulation system that seashore reservoir indoor the most according to claim 3 desalination resistance is salty, it is characterised in that:
It is provided with inflated type between described silt district and salt pool and may move water fender.
The experimental simulation system that seashore reservoir indoor the most according to claim 4 desalination resistance is salty, it is characterised in that:
If being provided with dry drainage degree probe hole in the silt district of described flat board tank different depth, it is inserted into supervising in real time at salinity probe hole
The salinity surveying salinity monitors probe in real time, and salinity is monitored probe in real time and is connected with controller.
The experimental simulation system that seashore reservoir indoor the most according to claim 5 desalination resistance is salty, it is characterised in that:
It is provided with some round gap water sampling holes in the silt district of described flat board tank different depth, takes out for being interrupted in experimentation
Take pore water, monitor hole water substance concentration change.
7. an analogy method for the experimental simulation system that desalination resistance in seashore reservoir indoor as claimed in claim 6 is salty,
It is characterized in that, comprise the following steps:
1) configuration NaCl and FD&Cred40 mixed solution, takes out a part of mixed solution and cleans quartz sand, remaining
Mixed solution loads brine tank as sea water, adds deionized water and the most clear by set sand mold in flat board tank silt district
The quartz sand washed, adds deionized water before adding sand, then adds sand, and the process adding sand is slowly uniform, is careful not to make sand reveal
Go out liquid level, and during sand loading, notice that aerofluxus ensures that chiltern is saturated, check bubble and chiltern homogeneity；
2) open inlet valve, checking in fresh water pipeline whether there is bubble, if having, must slowly drive out of；
3) inserting water fender in the set position of experiment, inflation makes it fix, and i.e. completes the setting of simulation seashore reservoir；
4) water level of simulation seashore reservoir is adjusted, if higher than set seashore reservoir filling position height, then opening salt pool
Flowing water Valve discharges water to set height；If less than setting, then opening inlet valve, moisturizing to set height；
5) open tidal wave maker, be not switched on its connection valve interval with saline, adjust tidal wave amplitude, average sea
Position, cycle；
6) open the connection valve that tidal wave maker is interval with saline, saline injected in salt pool with the form of tide,
The immersible pump simultaneously opened in brine tank pumps into high salinity brine in salt pool；And in experimentation at set intervals
In brine tank, add high concentration saline, make salinity approximation in salt pool keep constant；Open fresh-water tank and fresh water district simultaneously
Between inlet valve, make fresh water enter fresh water district；
7) according to set condition, fresh-water flow, rainfall intensity are controlled by controller；
8) simultaneously, opening camera system timing and take pictures, interval 15s once, carries out captured in real-time to pressure-measuring pipe, obtains
Pressure information；Utilize salinity to monitor probe in real time and obtain the salinity of test point in real time；Utilize the real-time monitoring of environmental of vapo(u)rization system
Evaporation number；And timing samples from thief hole；
9) fresh water in fresh water district to silt district invade, salt wedge constantly retreats, until salt wedge no longer retreat become constant time
Stop experiment.
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| CN108152450A (en) * | 2017-11-17 | 2018-06-12 | 河海大学 | Simulate the device and its application method of seashore reservoir pollution object migration |
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