CN109163880A - A method of simulation carbon dioxide saturated solution is formed and bleeding process - Google Patents
A method of simulation carbon dioxide saturated solution is formed and bleeding process Download PDFInfo
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- CN109163880A CN109163880A CN201811097353.2A CN201811097353A CN109163880A CN 109163880 A CN109163880 A CN 109163880A CN 201811097353 A CN201811097353 A CN 201811097353A CN 109163880 A CN109163880 A CN 109163880A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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Abstract
The present invention relates to a kind of simulation carbon dioxide saturated solution formation and the methods of bleeding process, used experimental provision includes visual container, pressure vessel, two dioxide bottles and camera system, visual container side is provided with visual windows, light source and video camera are arranged at visual windows, are provided with upper pressure sensor and inlet valve and water inlet, control carbon dioxide gas from the bottom of the first dioxide bottle injection visual container by the first dioxide bottle intake valve；Pressure vessel systems II includes pressure vessel, for measuring the third pressure sensor of reservoir pressure；The top of visual container is connected by exhaust pipe with pressure vessel, exhaust outlet is provided on exhaust pipe, an exhaust valve is respectively arranged in both sides；Exhaust pipe where exhaust outlet and two exhaust valves is provided with bypass；Second dioxide bottle is connected by intake valve with pressure vessel.The present invention can be observed intuitively, strong operability.
Description
Technical field
The present invention relates to a kind of experimental provisions of simulation lake eruption.
Background technique
Lake eruption is a kind of hydrodynamics phenomenon that the large volume static waters moment for waiting further investigation acutely erupts,
Most typical lake eruptive example is the catastrophic eruption thing occurred in the morning on the 21st of August in 1986 in the lake African Cameroon Ni Aosi
Part, this event cause to die more than 1700 people.The carbon dioxide of deep under ground is escaped by the rock fracture in the earth's crust to lake water
In, since profundal zone pressure is big in lake, carbon dioxide is dissolved wherein by high pressure.Disturbance or dioxide solution are generated in the external world
In the case where rising, a large amount of carbon dioxide can be precipitated from water in a short time, form eruption.Similar disaster is avoided to send out
It is raw, it is necessary to which that the process that process of the carbon dioxide solubility in water and carbon dioxide are precipitated from solution is studied.
According to literature, on-site data gathering and theoretical point are focused primarily upon for the research of lake eruption event at present
Analysis aspect.In experiment analog portion, existing experimental provision uses transparent glass tube as container, and glass tube top connects low pressure
Storehouse uses metal film interval between glass tube and low pressure storehouse.The problem of this experimental provision, is that the diameter of glass tube is smaller, produces
After anger bubble, mutual extrusion between bubble, bubble development is serious by Wall effect, can not dioxy in accurate and effective simulation lake water
Change the bleeding process of carbon solution, and bleeding process is unable to control, glass tube and low pressure storehouse are connected in metal film rupture moment, with oneself
Right situation is not inconsistent.
Summary of the invention
The object of the invention provides a kind of method to simulate lake eruption, and simulation carbon dioxide gas is at various pressures
The bleeding process of the process and dioxide solution being dissolved in the water at various pressures.Technical scheme is as follows:
A method of simulation carbon dioxide saturated solution is formed and bleeding process, used experimental provision, including can
Depending on containment system I, pressure vessel systems II, two dioxide bottles and camera system IV, camera system IV include at least one
Group light source and video camera, visual container system I include that visual container, its side are provided with visual windows, and light source and video camera are set
It sets at visual windows, to observe bleeding process, obtain the image that loses heart, which is characterized in that
Visual container is provided with upper pressure sensor and inlet valve and water inlet, by the first dioxide bottle into
Air Valve Control carbon dioxide gas is dissolved in water from the bottom of the first dioxide bottle injection visual container, carbon dioxide gas
In；Pass through the pressure at the top of upper pressure sensor measurement visual container；
Pressure vessel systems II includes pressure vessel, for measuring the third pressure sensor of reservoir pressure；Visually
The top of container is connected by exhaust pipe with pressure vessel, exhaust outlet is provided on exhaust pipe, on the both sides of exhaust outlet
Respectively one visual container side exhaust valve of setting and pressure vessel side exhaust valve；Exhaust pipe where exhaust outlet and two exhaust valves
It is provided with bypass, communicating valve is provided in bypass；
Second dioxide bottle is connected by intake valve with pressure vessel, pressure vessel by the communicating valve and its
The bypass at place is connected with visual container；
It is provided on visual container top and hides liquid plate, to prevent exhaust entrained liquids from pouring in exhaust pipe.
Gas distributor is arranged in the bottom of visual container, and carbon dioxide gas is dissolved in water by gas distributor.
PH sensor is provided in visual container, the pH value of the solution after being passed through by pH sensor measures carbon dioxide；
Simulation carbon dioxide saturated solution is formed and the step of bleeding process includes:
1) experiment starts, and closes all valves；
2) inlet valve is opened, water enters visual container by water inlet, closes inlet valve after reaching specified water level line；
3) opening the first dioxide bottle intake valve conveys the carbon dioxide gas in the first dioxide bottle
Into visual container, make gas dispersing and dissolving in water body by gas distributor, while measuring by upper pressure sensor
Pressure in visual container constantly increases, and after pressure reaches the setting value of experiment, opens visual container side exhaust valve, is keeping
Exhaust is controlled while air inlet, the pressure in visual container is made to maintain setting value always, and it is same that this passes through pH sensor in the process
The pH value of solution in pacing amount visual container, after when pH stable and no longer decline, simultaneously close off the first dioxide bottle into
Air valve and visual container side exhaust valve obtain the saturation dioxide solution under setting pressure in visual container at this time；
4) the second dioxide bottle intake valve is opened, the carbon dioxide gas in the second dioxide bottle passes through pipeline
It is delivered in pressure vessel, the pressure in pressure vessel is measured by third pressure sensor, after pressure reaches setting value, close
The second dioxide bottle intake valve is closed, the pressure in pressure vessel should be lower than the pressure in visual container at this time；
5) open communicating valve, carbon dioxide gas flows to pressure vessel by visual container, the pressure in pressure vessel can on
It rising, the pressure in visual container can decline, and as pressure declines, bleeding process will occur for the saturated solution in visual container, this
Process is shot by using light source and video camera, after bleeding process stops and no longer generates bubble, closes communicating valve；
6) visual container side exhaust valve is opened, the pressure in visual container is down to normal pressure, opens the exhaust of pressure vessel side
Pressure in pressure vessel is down to normal pressure, opens drain valve by valve, and the water in visual container is discharged by discharge outlet.
Effectiveness of the invention and feature are: carbon dioxide saturated solution in lake water can effectively be simulated by providing one kind
It is formed and the experimental provision of bleeding process, simulation different pressures situation can be observed intuitively, acquisition data are comprehensive, and pipeline has optimized
It is kind, strong operability.Specifically:
(1) in terms of simulating natural condition: visual container internal diameter is big (293mm), small to bubble formation influence on development, closer
The truth of nature.
(2) can intuitively observe aspect: by visual windows observe lose heart phenomenon, while using high-speed camera instrument to image into
Row record；Window not only ensure that intensity but also accomplished observation without blind spot using dislocation arrangement.
(3) it acquires the comprehensive aspect of data: arranging multiple pressure sensors and temperature sensor, simultaneously to multi-point pressure
Measure record.
(4) pipeline optimizes aspect: optimization valve arrangement more rationally ensure that valve while realizing design function
Door minimum number.
(5) in terms of strong operability: gas distributor keeps carbon dioxide more soluble in water, hides liquid plate and avoids gas
Water entrainment pours in exhaust pipe, and the experimentation being pre-designed can be realized by controlling different valves.
Detailed description of the invention
Fig. 1 is the structural representation of the experimental provision of a kind of simulation carbon dioxide saturated solution formation of the present invention and bleeding process
Figure.
Fig. 2 is the top view of visual container 15.
Fig. 3 is the partial cutaway view of visual container 15, and Fig. 3 (a) is partial cutaway view at the top of visual container, and Fig. 3 (b) is can
Depending on container bottom partial cutaway view.
The components in the drawings are labeled as follows: I, visual container system；II, pressure vessel systems；III, gas cylinder system；
IV, camera system；1,26, dioxide bottle；2,3,24,25, intake valve；4, inlet valve；5, water inlet；6, discharge outlet；7,
Drain valve；8, temperature sensor；9, gas distributor；10,16,22, pressure sensor；11, pH sensor；12, visual windows；
13, board-like light source；14, high-speed camera instrument；15, visual container；17, liquid plate is hidden；18, communicating valve；19,21, exhaust valve；20, it arranges
Port；23, pressure vessel.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention includes:
The experimental provision of simulation lake eruption of the invention can be used to simulate carbon dioxide saturated solution and be formed and be lost heart
Process, including visual container system I, pressure vessel systems II, gas cylinder system III, camera system IV；By intake valve 2 with into
Air valve 3 controls carbon dioxide gas and injects visual container 15 from dioxide bottle 1, and carbon dioxide gas passes through gas distributor
9 are dissolved in water；Water inlet 5 connects feedwater piping, is controlled and is intake by inlet valve 4, and discharge outlet 6 connects drainage pipeline, passes through
The control draining of drain valve 7；Temperature is measured by temperature sensor 8, is surveyed respectively by pressure sensor 10 and pressure sensor 16
The pressure for measuring 15 bottom of visual container and top measures solution ph by pH sensor 11；By be arranged in container surrounding 8
A visual windows 12 observe bleeding process, obtain the image that loses heart；Hiding liquid plate 17 prevents a large amount of water of exhaust clip band from pouring in exhaust pipe
Road；Board-like light source 13 provides light source, 14 recording image of high-speed camera instrument for shooting；Exhaust valve 19 controls visual container 15 and passes through row
Port 20 is vented, and exhaust valve 21 controls pressure vessel 23 and is vented by exhaust outlet 20, and coupling cock 18 controls visual container and pressure
The connection of container；Pressure sensor 22 measures the pressure in pressure vessel 23；Dioxy is controlled by intake valve 24 and intake valve 25
Change carbon gas from 26 injection pressure container 23 of dioxide bottle.
Water being controlled by inlet valve 4, visual container 15 being entered by water inlet 5, water is controlled by 6 row of discharge outlet by drain valve 7
Visual container out.
Intake valve 2 and intake valve 3 are controlled, the carbon dioxide gas in dioxide bottle 1 extremely may be used by pipeline
Depending on making gas dispersing and dissolving in water body by gas distributor 9 in container 15.
Temperature is recorded by temperature sensor 8, is recorded in visual container by pressure sensor 10 and pressure sensor 16
Pressure records pressure in pressure vessel 23 by pressure sensor 22 by 11 recording solution pH value of pH sensor.
By dislocation arrangement 4 groups totally 8 visual windows 12 can observe underwater bubble development process, using reversible-light shooting
Method, use board-like light source 13 and high-speed camera instrument 14 to shoot bubble image.
Meeting entrained drip pours into gas vent when bubble rises at the top of visual container, by using liquid plate 17 is hidden, prevents liquid
Drop enters exhaust pipe.
Exhaust valve 19 and exhaust valve 21 can control visual container 15 respectively and pressure vessel 23 is individually vented, and control communicating valve
18 make visual container 15 be connected with pressure vessel 23, pressure balance.
Intake valve 24 and intake valve 25 are controlled, the carbon dioxide gas in dioxide bottle 26 can be passed through pipeline
Into pressure vessel 23, to control the pressure of carbon dioxide gas in pressure vessel 23.
The specific experiment process in a model experiment period is described below:
Experiment starts, and closes all valves.
Firstly, opening inlet valve 4, water enters visual container 15 by water inlet 5, closes water inlet after reaching specified water level line
Valve 4.Later, intake valve 2 and intake valve 3 are opened, the carbon dioxide gas in dioxide bottle 1 is by pipeline to visual
In container 15, make gas dispersing and dissolving in water body by gas distributor 9, while visual appearance is measured by pressure sensor 16
Pressure in device 15 constantly increases, and after pressure reaches this time setting value of experiment, opens exhaust valve 19, is keeping the same of air inlet
When control exhaust, so that the pressure in visual container 15 is maintained setting value always, pass through the same pacing of pH sensor 11 during this
The pH value for measuring solution in visual container 15 when pH stable and after no longer decline, simultaneously closes off intake valve 2, intake valve 3 and exhaust
Valve 19 obtains the saturation dioxide solution under setting pressure in visual container 15 at this time.
Then, intake valve 24 and intake valve 25 are opened, the carbon dioxide gas in dioxide bottle 26 is defeated by pipeline
It send to pressure vessel 23, the pressure in pressure vessel 23 is measured by pressure sensor 22, after pressure reaches setting value, close
Intake valve 24 and intake valve 25 are closed, the pressure in pressure vessel 23 should be lower than the pressure in visual container 15 at this time.
Then, communicating valve 18 is opened, since the pressure in visual container 15 is higher than the pressure in pressure vessel 23, titanium dioxide
Carbon gas can flow to pressure vessel 23 by visual container 15 by pipeline, and the pressure in pressure vessel 23 can rise, visual container
Pressure in 15 can decline, and as pressure declines, bleeding process will occur for the saturated solution in visual container 15, generate in solution
A large amount of zooming bubbles, this process are shot by using board-like light source 13 and high-speed camera instrument 14, and light is by board-like
Light source 13 issues, and by visual windows 12, reaches high speed by the visual windows 12 of opposite side across the solution for being full of bubble and takes the photograph
As instrument 14, this image pickup method can more clearly from take the profile of bubble, when bleeding process stops and no longer generates bubble
Afterwards, communicating valve 18 is closed.
Finally, opening exhaust valve 19, the pressure in visual container 15 is down to normal pressure, exhaust valve 21 is opened, pressure is held
Pressure in device 23 is down to normal pressure, opens drain valve 7, and the water in visual container 15 is discharged by discharge outlet 6.
Experiment terminates, and closes all valves.
The above is only the embodiment of the present invention, are not intended to limit the scope of the invention, all to be said using the present invention
Equivalent structure or equivalent flow shift made by bright book and accompanying drawing content is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (3)
1. a kind of simulation carbon dioxide saturated solution is formed and the method for bleeding process, used experimental provision, including visual
Containment system I, pressure vessel systems II, two dioxide bottles and camera system IV, camera system IV include at least one set
Light source and video camera, visual container system I include that visual container, its side are provided with visual windows, light source and video camera setting
At visual windows, to observe bleeding process, obtain the image that loses heart, which is characterized in that
Visual container is provided with upper pressure sensor and inlet valve and water inlet, passes through the first dioxide bottle intake valve
Carbon dioxide gas is controlled from the bottom of the first dioxide bottle injection visual container, carbon dioxide gas is dissolved in water；
Pass through the pressure at the top of upper pressure sensor measurement visual container；
Pressure vessel systems II includes pressure vessel, for measuring the third pressure sensor of reservoir pressure；Visual container
Top be connected with pressure vessel by exhaust pipe, exhaust outlet is provided on exhaust pipe, is respectively set on the both sides of exhaust outlet
Set a visual container side exhaust valve and pressure vessel side exhaust valve；Exhaust pipe setting where exhaust outlet and two exhaust valves
There is bypass, communicating valve is provided in bypass；
Second dioxide bottle is connected by intake valve with pressure vessel, and pressure vessel passes through the communicating valve and its place
Bypass be connected with visual container；
It is provided on visual container top and hides liquid plate, to prevent exhaust entrained liquids from pouring in exhaust pipe.
Gas distributor is arranged in the bottom of visual container, and carbon dioxide gas is dissolved in water by gas distributor.
PH sensor is provided in visual container, the pH value of the solution after being passed through by pH sensor measures carbon dioxide.
Simulation carbon dioxide saturated solution is formed and the step of bleeding process includes:
1) experiment starts, and closes all valves；
2) inlet valve is opened, water enters visual container by water inlet, closes inlet valve after reaching specified water level line；
3) open the first dioxide bottle intake valve the carbon dioxide gas in the first dioxide bottle is delivered to can
Depending on making gas dispersing and dissolving in water body by gas distributor, while measuring visually by upper pressure sensor in container
Pressure in container constantly increases, and after pressure reaches the setting value of experiment, opens visual container side exhaust valve, is keeping air inlet
While control exhaust, so that the pressure in visual container is maintained setting value always, pass through the same pacing of pH sensor during this
The pH value for measuring solution in visual container simultaneously closes off the first dioxide bottle intake valve when pH stable and after no longer decline
With visual container side exhaust valve, the saturation dioxide solution under setting pressure is obtained in visual container at this time；
4) the second dioxide bottle intake valve is opened, the carbon dioxide gas in the second dioxide bottle passes through pipeline
To pressure vessel, the pressure in pressure vessel is measured by third pressure sensor, after pressure reaches setting value, closes the
Two dioxide bottle intake valves, the pressure in pressure vessel should be lower than the pressure in visual container at this time；
5) communicating valve is opened, carbon dioxide gas flows to pressure vessel by visual container, and the pressure in pressure vessel can rise, can
It can decline depending on the pressure in container, as pressure declines, bleeding process will occur for the saturated solution in visual container, this process is logical
It crosses and is shot using light source and video camera, after bleeding process stops and no longer generates bubble, close communicating valve；
6) visual container side exhaust valve is opened, the pressure in visual container is down to normal pressure, opens pressure vessel side exhaust valve, it will
Pressure in pressure vessel is down to normal pressure, opens drain valve, and the water in visual container is discharged by discharge outlet.
2. the method according to claim 1, wherein visual windows include being arranged in visual container side and opposite side
Two visual windows, every one group of light source and video camera, light issues by light source, passes through the visual of side visual windows and opposite side
Window reaches video camera.
3. the method according to claim 1, wherein visual container is provided with temperature sensor and low pressure passes
Sensor passes through the pressure of the bottom of low pressure sensor measurement visual container by temperature sensor measurement temperature.
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| CN201811097353.2A CN109163880B (en) | 2018-09-18 | 2018-09-18 | Method for simulating formation and air leakage process of carbon dioxide saturated solution |
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| CN201811097353.2A CN109163880B (en) | 2018-09-18 | 2018-09-18 | Method for simulating formation and air leakage process of carbon dioxide saturated solution |
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Cited By (2)
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| CN109029915A (en) * | 2018-09-18 | 2018-12-18 | 天津大学 | A kind of experimental provision of simulation lake eruption |
| CN112748230A (en) * | 2020-12-16 | 2021-05-04 | 中国科学院武汉岩土力学研究所 | Dissolved air balance monitoring system and method for preparing gas-containing soil sample |
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| CN112748230A (en) * | 2020-12-16 | 2021-05-04 | 中国科学院武汉岩土力学研究所 | Dissolved air balance monitoring system and method for preparing gas-containing soil sample |
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| CN109163880B (en) | 2020-02-07 |
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