CN116298185A - experimental device - Google Patents

Abstract

The invention provides an experimental device which comprises a tank body, a first sealing element, a spray head, a pressurizing part, a liquid taking pipe and a plurality of material carrying plates, wherein the first sealing element is arranged on the tank body; the inner sealing cavity of the tank body comprises a first accommodating cavity and a second accommodating cavity positioned below the first accommodating cavity; the first sealing member is movably arranged between the first accommodating cavity and the second accommodating cavity so as to enable the first accommodating cavity and the second accommodating cavity to be communicated or disconnected; the spray head is arranged in the first accommodating cavity; the air outlet of the pressurizing part is communicated with the first accommodating cavity; the material carrying plates are arranged in the second accommodating cavity at intervals along the vertical direction so as to divide the second accommodating cavity into a plurality of cavity sections; the cavity sections are used for being arranged in one-to-one correspondence with the plurality of simulation materials, and each cavity section is used for accommodating the corresponding simulation material; each material carrying plate is provided with a penetration hole; each cavity section is used for being connected with and communicated with the first pipe orifice of at least one liquid taking pipe. The experimental device solves the problem of limitation of researching the water-rock coupling action process under the real condition.

Description

experimental device

technical field

The invention relates to the technical field of water-rock coupling, in particular to an experimental device.

Background technique

Water-rock coupling is the water quality change process produced by the chemical and mechanical interactions that occur during the migration of water bodies in the formation. This process takes the internal driving force of the water-rock system as the initial driving force. Under the condition of exchange, the natural purification process of water body occurs.

In the actual research process, due to the limitations of realistic factors and conditions, it is difficult to achieve objective observation and research on the mechanism of water-rock coupling purification inside the formation, especially the coupling process of water-rock coupling inside the formation under pressure is difficult to observe and study. Therefore, it is necessary to use experimental devices to simulate the rock structure to realize the research on water purification under the coupling effect of water and rock.

At present, there is no experimental equipment that can simulate the rock mass structure of the formation, simulate the coupling process of water and rock, and can study the water body passing through different rock mass and soil layers, and realize real-time monitoring and water quality change analysis.

Contents of the invention

The main purpose of the present invention is to provide an experimental device to solve the limitation problem of studying the coupling process of water and rock under realistic conditions.

In order to achieve the above object, the present invention provides an experimental device, which includes: a tank body, the tank body has an inner sealed cavity, and the inner sealed cavity includes a first accommodating cavity and a second accommodating cavity located below the first accommodating cavity ; The first sealing member, the first sealing member is movably arranged between the first accommodating chamber and the second accommodating chamber, so that the first accommodating chamber and the second accommodating chamber are communicated or disconnected; In the accommodation chamber; the pressurizing part, the air outlet of the pressurizing part communicates with the first accommodation chamber; a plurality of carrier plates, the plurality of carrier plates are vertically spaced in the second accommodation chamber, so that the second accommodation The cavity is divided into multiple cavity segments; multiple cavity segments are used to correspond to multiple simulated materials, and each cavity segment is used to accommodate corresponding simulated materials; permeation holes are set on each carrier plate; liquid taking tube The liquid-taking pipe is located outside the tank body and can be set on and off, and each chamber section is used to connect and communicate with the first nozzle of at least one liquid-taking pipe.

Further, a first on-off valve is provided on the liquid-taking pipe to control the on-off of the liquid-taking pipe; and/or the experimental device also includes a temperature control system, and at least part of the temperature control system is arranged in the second accommodating chamber to Detecting and controlling the temperature in the second containing chamber.

Further, the experimental device further includes a cover plate, which is used to cover the simulated material in the cavity segment at the top among the plurality of cavity segments, and the cover plate is provided with a liquid-permeable hole.

Further, the inner sealed cavity also includes a third accommodating chamber located below the second accommodating chamber, the experimental device further includes a second sealing member, and the second sealing member is movably arranged between the third accommodating chamber and the second accommodating chamber , so that the third accommodating chamber and the second accommodating chamber are connected or disconnected.

Further, the tank body includes a tank body and a top cover, and the spray head is installed on the top cover; and/or there are multiple spray heads, and the multiple spray heads are arranged at intervals.

Further, the experimental device also includes: a liquid supply pipe and a liquid storage tank, the first nozzle of the liquid supply pipe is connected and communicated with the liquid inlet of the spray head, and the second nozzle of the liquid supply pipe extends into the liquid in the liquid storage tank ; Wherein, the liquid supply pipe is provided with a pressure valve.

Further, the liquid supply pipe is provided with a flow meter and/or a liquid suction pump.

Further, the experimental device also includes a gas supply pipe, the first nozzle of the gas supply pipe is connected and communicated with the gas outlet of the pressurized part, and the second nozzle of the gas supply pipe is connected with the first accommodation chamber; wherein, the gas supply pipe is provided with a pressure count.

Further, the bottom of the tank body is provided with a drain hole communicating with the third containing chamber, and the experimental device further includes a drain pipe connected and communicated with the drain hole, and a third on-off valve is provided on the drain pipe.

Further, each carrier plate is provided with a plurality of permeation holes distributed at intervals.

Applying the technical solution of the present invention, the experimental device includes a tank body, a first sealing member, a spray head, a pressurizing component, a liquid-taking pipe, and a plurality of carrier plates; the tank body has an internal sealed cavity, and the internal sealed cavity includes a first containing chamber and the second chamber located below the first chamber; the first seal is movably arranged between the first chamber and the second chamber, so that the first chamber and the second chamber communicate or disconnect open; the nozzle is arranged in the first accommodation chamber; the pressurized part has an air outlet, and the air outlet of the pressurized part communicates with the first accommodation chamber; a plurality of carrier plates are vertically spaced in the second accommodation chamber to Divide the second containing chamber into a plurality of chamber segments; the plurality of chamber segments are used to correspond to a plurality of simulated materials, and each chamber segment is used to accommodate corresponding simulated materials; each carrier plate is provided with permeation holes , so that two adjacent cavity segments are connected, and in any two adjacent cavity segments, the adjacent two cavity segments are the upper cavity segment and the lower cavity segment respectively, so that after the liquid in the upper cavity segment passes through the simulated material, The permeation hole on the carrier plate between two adjacent cavity sections flows into the lower cavity section; the liquid taking tube is located on the outside of the tank and can be set on and off, and each cavity section is used to communicate with at least one liquid taking tube The first orifice of each liquid-taking tube is connected and communicated, and the second orifice of each liquid-taking tube is its liquid-taking outlet; that is, the experimental device includes a plurality of liquid-taking tube groups, and a plurality of liquid-taking tube groups corresponds to a plurality of chamber segments one by one. It is provided that each liquid-taking tube group includes at least one liquid-taking tube, and the first nozzle of the liquid-taking tube of each liquid-taking tube group is connected and communicated with the corresponding chamber segment.

Make the first accommodation chamber communicate with the second accommodation chamber, spray liquid into the second accommodation chamber through the nozzle, so that the liquid ejected by the nozzle passes through a plurality of chamber segments in sequence, that is, passes through the simulated materials in the plurality of chamber segments in sequence, and sequentially The liquid after passing through multiple chamber segments is the final liquid. When the first accommodating chamber and the second accommodating chamber are disconnected, gas is passed into the first accommodating chamber through the gas outlet of the pressurized part to check the airtightness of the tank; when the first accommodating chamber and the second accommodating chamber When communicating, the gas is introduced into the second accommodation chamber through the air outlet of the pressurizing part, so as to increase the pressure in the second accommodation chamber.

The filtrate in the corresponding cavity segment is obtained through each liquid-taking tube, wherein the filtrate in each cavity segment refers to the liquid formed after the liquid entering the cavity segment flows through the simulated material in the cavity segment.

The experimental device of the present application can use a similar simulation of the coupling process between rock mass and water body to realize the research on the water-rock coupling process inside the stratum structure, effectively solving the limitation problem of studying the water-rock coupling process under realistic conditions.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 shows the structural representation according to experimental device of the present invention;

Fig. 2 shows the top structural view of the tank body of the experimental device in Fig. 1;

Fig. 3 shows the structural representation of the top cover of experimental device among Fig. 1;

Fig. 4 shows the structural representation of the loading plate of the experimental device in Fig. 1;

FIG. 5 shows a side view of the carrier plate of the experimental setup in FIG. 4 .

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. Tank body; 101. Tank body; 102. Top cover; 1021. Communication opening; 103. Bottom cover; 11. First accommodation chamber; 12. Second accommodation chamber; 13. Third accommodation chamber; 14. Drain pipe; 141, third on-off valve; 21, first seal; 22, second seal; 30, nozzle; 40, pressurized part; 41, air supply pipe; 42, pressure gauge; 43, second Connector; 50, loading plate; 51, permeation hole; 60, liquid intake pipe; 61, first on-off valve; 70, temperature control system; 80, cover plate; 90, liquid storage tank; 91, liquid supply pipe ; 92, flow meter; 93, pumping pump; 94, second on-off valve; 95, pressure valve; 96, first connecting piece;

200. Simulation material.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

The present invention provides an experimental device for simulating the formation water-rock coupling purification process, please refer to Fig. 1 to Fig. 5, the experimental device includes a tank body 10, a first sealing member 21, a nozzle 30, a pressurizing part 40, a liquid-taking The tube 60 and a plurality of carrier plates 50; the tank body 10 has an inner sealed cavity, and the inner sealed cavity includes a first receiving cavity 11 and a second receiving cavity 12 located below the first receiving cavity 11; the first sealing member 21 It is movably arranged between the first accommodation chamber 11 and the second accommodation chamber 12, so that the first accommodation chamber 11 and the second accommodation chamber 12 are connected or disconnected; the spray head 30 is arranged in the first accommodation chamber 11; pressurization The part 40 has an air outlet, and the air outlet of the pressurizing part 40 communicates with the first accommodation chamber 11; a plurality of carrier plates 50 are vertically spaced in the second accommodation chamber 12 to divide the second accommodation chamber 12 into A plurality of cavity segments; a plurality of cavity segments are used to correspond to a plurality of simulated materials 200, and each cavity segment is used to accommodate corresponding simulated materials 200; each carrier plate 50 is provided with permeable holes 51, so that Two adjacent cavity sections are connected, and in any two adjacent cavity sections, the adjacent two cavity sections are the upper cavity section and the lower cavity section respectively, so that the liquid in the upper cavity section passes through the simulation material 200 The permeation holes 51 on the carrier plate 50 between adjacent two chamber sections flow into the lower chamber section; the liquid taking pipe 60 is located on the outside of the tank body 10 and can be set on and off, and each chamber section is used to communicate with at least one taking The first mouth of the liquid pipe 60 is connected and communicated, and the second mouth of each liquid pipe 60 is its liquid outlet; that is, the experimental device includes a plurality of liquid pipe groups, a plurality of liquid pipe groups and a plurality of cavity sections One-to-one correspondence is set, and each liquid-taking tube group includes at least one liquid-taking tube 60, and the first nozzle of the liquid-taking tube 60 of each liquid-taking tube group is connected and communicated with the corresponding chamber segment.

Make the first accommodation chamber 11 and the second accommodation chamber 12 communicate, spray liquid into the second accommodation chamber 12 through the spray head 30, so that the liquid sprayed by the spray head passes through a plurality of chamber segments in sequence, that is, passes through the liquid in the plurality of chamber segments in sequence. Simulated material 200; the liquid that passes through multiple cavity segments in sequence is the final liquid. When the first accommodating chamber 11 and the second accommodating chamber 12 were disconnected, gas was introduced into the first accommodating chamber 11 through the gas outlet of the pressurizing part 40 to check the airtightness of the tank body 10; when the first accommodating chamber 11 communicates with the second housing chamber 12 , gas is introduced into the second housing chamber 12 through the gas outlet of the pressurizing component 40 to increase the pressure in the second housing chamber 12 .

The filtrate in the corresponding chamber section is obtained through each liquid-taking pipe 60, wherein the filtrate in each chamber section refers to the liquid that enters the chamber section and forms after flowing through the simulated material 200 in the chamber section liquid.

The experimental device of the present application can use a similar simulation of the coupling process between rock mass and water body to realize the research on the water-rock coupling process inside the stratum structure, effectively solving the limitation problem of studying the water-rock coupling process under realistic conditions. Moreover, the manpower and material resources consumed under actual conditions are greatly reduced. In addition, using the experimental device of the present application for simulation can restore the accuracy of field experiments in equal proportions.

Specifically, the gas discharged from the gas outlet of the pressurizing part 40 is an inert gas, so as to prevent contamination of the liquid passing into the second containing chamber 12 and affect the experimental results; The gas is nitrogen.

Specifically, the vertical height of each cavity segment is set according to the thickness of the corresponding simulation material 200, and the thickness direction of the simulation material 200 is parallel to the vertical direction.

Optionally, the simulated material 200 is a simulated rock mass material or a filter material, that is, the simulated material 200 is a simulated material similar to the mechanical strength and lithological properties of the rock mass; the experimental device of the present application is a simulated rock mass fissure water An experimental device for the water-rock coupling purification process that occurs during the migration process within the structure. The experimental device of this application can simulate ion exchange, adsorption, Filtration and other physical and chemical phenomena are used to study the water-rock coupling process when water passes through different rock structures. The thicknesses of the plurality of dummy materials 200 are different, and the strengths of the plurality of dummy materials 200 are different.

Specifically, the nozzle of the spray head 30 is arranged downward, so that the nozzle 30 sprays liquid or atomized liquid downward through the nozzle.

Specifically, the tank body 10 is extended in the vertical direction, and the inner sealed cavity is extended in the vertical direction; the inner sealed cavity is a cylindrical cavity.

Specifically, the two board surfaces of each loading plate 50 are distributed along the vertical direction, and the permeation holes 51 on each loading plate 50 penetrate through the loading plate 50 along the vertical direction.

Specifically, each carrier plate 50 is provided with a plurality of penetration holes 51 distributed at intervals. Optionally, the center lines of some of the penetration holes 51 on each carrier plate 50 are arranged at an acute angle to the vertical direction, that is, the partial penetration holes 51 on each carrier plate 50 are arranged obliquely relative to the vertical direction.

Specifically, the liquid-taking pipe 60 is made of high-strength stainless steel pipe.

As shown in FIG. 1 , each liquid-taking tube group includes two liquid-taking tubes 60 , and the first nozzles of the multiple liquid-taking tubes 60 of each liquid-taking tube group are connected and communicated with corresponding cavity segments. There are four loading plates 50 .

In this embodiment, each liquid-taking tube 60 is located at the lower part of the corresponding chamber segment.

In this embodiment, for each liquid-taking pipe 60 , a first on-off valve 61 is provided on the liquid-taking pipe 60 to control the on-off of the liquid-taking pipe 60 and to control the liquid flow in the liquid-taking pipe 60 .

In this embodiment, the experimental device further includes a temperature control system 70 , at least a part of the temperature control system 70 is set in the second storage chamber 12 to detect and control the temperature in the second storage chamber 12 in real time.

Specifically, the temperature control system 70 includes a temperature sensor, a temperature control system and a temperature display, and at least part of the temperature sensor is arranged in the second storage chamber 12 to detect the real-time temperature in the second storage chamber 12; the temperature sensor and the temperature control system A communication connection enables the temperature control system to obtain temperature information detected by the temperature sensor; a communication connection between the temperature display and the temperature control system enables the temperature display to display the temperature information obtained by the temperature control system.

In this embodiment, the experimental device further includes a cover plate 80, which is used to cover the simulated material 200 in the topmost cavity segment among the plurality of cavity segments, and the cover plate 80 is provided with a liquid-permeable hole , so that the liquid entering the second receiving chamber 12 can enter the uppermost chamber segment among the plurality of chamber segments through the liquid-permeable hole on the cover plate 80 .

Specifically, both board surfaces of the cover plate 80 are distributed along the vertical direction, and the liquid-permeable holes penetrate the cover plate 80 along the vertical direction.

Specifically, the cover plate 80 is provided with a plurality of liquid-permeable holes distributed at intervals.

In this embodiment, the inner sealed cavity further includes a third accommodating chamber 13 located below the second accommodating chamber 12, and the experimental device further includes a second sealing member 22, and the second sealing member 22 is movably arranged in the third accommodating chamber. 13 and the second accommodating cavity 12, so that the third accommodating cavity 13 and the second accommodating cavity 12 are connected or disconnected. When the third accommodation chamber 13 communicates with the second accommodation chamber 12 , the liquid finally enters the third accommodation chamber 13 .

In this embodiment, the tank body 10 includes a tank body 101 and a top cover 102 connected to each other, and the spray head 30 is installed on the top cover 102 .

Specifically, the tank body 10 also includes a bottom cover 103, the bottom cover 103 is connected to the tank body 101, and the bottom cover 103 is detachably arranged with the tank body 101; Surrounded by an internal sealed cavity. By making the bottom cover 103 and the tank body 101 detachable, after the experiment is completed, the bottom cover 103 is detached from the tank body 101, thereby facilitating the removal of the simulation material 200 and the carrier plate 50 in the tank body 101, thereby facilitating Clean the experimental setup.

Optionally, the top cover 102 is a disc-shaped cover.

Optionally, the bottom cover 103 is hemispherical.

Specifically, the tank body 10 is made of stainless steel; optionally, the tank body 10 is made of stainless steel with a specific gravity not lower than 7.9; the pressure bearing capacity of the tank body 10 is not lower than 4MPa.

Optionally, the inner sealing cavity is a cylindrical cavity, and the diameter of the inner sealing cavity ranges from 40 cm to 45 cm.

Optionally, the height of the tank body 10 is 80cm to 85cm.

In this embodiment, there are multiple spray heads 30, and the multiple spray heads 30 are arranged at intervals.

In this embodiment, the experimental device also includes a liquid supply pipe 91 and a liquid storage tank 90, the first nozzle of the liquid supply pipe 91 is connected and communicated with the liquid inlet of the spray head 30, and the second nozzle of the liquid supply pipe 91 extends into the liquid in the reservoir 90.

Specifically, the top cover 102 has a liquid passage, the first nozzle of the liquid supply pipe 91 is connected and communicated with the first port of the liquid passage, and the second port of the liquid passage is connected and communicated with the liquid inlet of the spray head 30; When there are more than one nozzle 30, the liquid inlet of each spray head 30 is connected and communicated with the second port of the liquid channel.

Further, the top cover 102 is provided with a plurality of communication openings 1021, and the plurality of communication openings 1021 are all in communication with the second port of the liquid passage; 1021 is connected and communicated with the liquid inlet port of the corresponding spray head 30 . Optionally, the diameter of the communication opening 1021 is 5 mm.

Specifically, the experimental device also includes a first connecting piece 96, through which the first end of the liquid supply pipe 91 is connected to the top cover 102; wherein, the first connecting piece 96 plays a role of sealing engagement, preventing liquid supply There is a leak at the junction of the tube 91 and the top cover 102.

Specifically, a second on-off valve 94 is provided on the liquid supply pipe 91 to control the on-off of the liquid supply pipe 91 and to control the liquid flow in the liquid supply pipe 91 .

Specifically, a flow meter 92 is provided on the liquid supply pipe 91 .

Specifically, a liquid suction pump 93 is provided on the liquid supply pipe 91 .

Specifically, a pressure-bearing valve 95 is provided on the liquid supply pipe 91 .

Specifically, along the liquid flow direction in the liquid supply pipe 91, the second on-off valve 94 is positioned upstream of the pressure-bearing valve 95, the liquid suction pump 93 is positioned upstream of the second on-off valve 94, and the flow meter 92 is positioned at the upstream of the pressure-bearing valve 95. Upstream of , the flow meter 92 is located downstream of the second on-off valve 94 .

In this embodiment, the experimental device further includes a gas supply pipe 41 , the first nozzle of the gas supply pipe 41 is connected and communicated with the gas outlet of the pressurizing component 40 , and the second nozzle of the gas supply pipe 41 is communicated with the first accommodating chamber 11 .

Specifically, the top cover 102 has a gas channel, the second nozzle of the gas supply pipe 41 is connected and communicated with the first port of the gas channel, and the second port of the gas channel is communicated with the first receiving chamber 11 .

Specifically, the experimental device also includes a second connecting piece 43, through which the second end of the air supply pipe 41 is connected to the top cover 102; wherein, the second connecting piece 43 plays a role of sealing engagement, preventing the air supply pipe 41 from Air leaks at the connection position with the top cover 102.

Specifically, a pressure gauge 42 is provided on the gas supply pipe 41 .

In this embodiment, the bottom of the tank body 10 is provided with a drain hole communicating with the third chamber 13, and the experimental device also includes a drain pipe 14 connected and communicated with the drain hole, so that the third chamber 13 The liquid is discharged through the drain pipe 14.

Specifically, the discharge pipe 14 is provided with a third on-off valve 141 , so as to control the on-off of the discharge pipe 14 and the liquid flow in the discharge pipe 14 through the third on-off valve 141 .

Specifically, the first nozzle of the discharge pipe 14 is connected and communicated with the discharge hole, and the second nozzle of the discharge pipe 14 is used to communicate with the collection chamber of the collection part, so as to collect the liquid from the discharge pipe 14 through the collection part. of the final liquid. Wherein, the collecting part and the liquid storage tank 90 may be two separate parts;

Further, the top opening of the collection chamber is located below the second nozzle of the drain pipe 14 .

In this embodiment, each valve adopts a high-strength valve so that each valve can withstand a pressure not lower than 4MPa.

In this embodiment, the experimental device also includes a pressurization assembly, the pressurization assembly includes the above-mentioned pressurization component 40, a pressure control system and a display system, and the pressurization component 40 is connected with the pressure control system so that the pressure control system controls The discharge pressure of the air outlet of the pressurizing part 40; the display system is connected in communication with the pressure control system, and the display system is used to display the discharge pressure of the air outlet of the pressurizing part 40.

In the specific implementation process, the experimental steps using the experimental device of the present application include:

The first step: make the pressure-bearing valve 95, the second on-off valve 94, the third on-off valve 141 and the first on-off valve 61 on each liquid-taking pipe 60 all close, and make the first accommodation chamber 11 and the second on-off valve The accommodating chambers 12 are disconnected, so that the third accommodating chamber 13 and the second accommodating chamber 12 are disconnected; use the pressurizing part 40 to pass gas into the first accommodating chamber 11 to pressurize, and check whether the indication of the pressure gauge 42 is Change to check the overall airtightness of the tank body 10.

The second step: detach the liquid supply pipe 91 and the air supply pipe 41 from the top cover 102; configure a plurality of simulation materials 200; open the top cover 102, and put a plurality of loads into the tank body 10 sequentially from bottom to top. Material plate 50 and multiple simulation materials 200, after each simulation material 200 is put in, it needs to be aired; after multiple simulation materials 200 are laid, add cover plate 80; then cover the top cover 102 on the tank body 101 Then, connect the liquid supply pipe 91 and the air supply pipe 41 to the top cover 102; repeat the first step, and check the overall airtightness of the tank body 10 again.

The third step: open the third on-off valve 141 and the pressure-bearing valve 95, then open the second on-off valve 94, turn on the liquid pump 93, observe the indication of the flowmeter 92, pass the pressure-bearing valve 95 and/or the pressure-bearing The valve 95 is used to regulate the liquid flow in the liquid supply pipe 91.

Step 4: The liquid is evenly distributed through the nozzle 30. When the liquid in the tank body 10 reaches a liquid volume exceeding 80 or more than 3cm of the cover plate, choose whether to open the pressurizing part 40 to pressurize according to the realization requirement, and according to the realization requirement Select whether to turn on the temperature control system 70 for temperature control. Relying on natural seepage or simulated formation pressure to make water-rock coupling purification between the liquid and the simulated material 200, the liquid after passing through the simulated material 200 flows into the cavity section below it through the permeable hole 51 on the carrier plate 50 Material 200. According to the experimental requirements, the first on-off valve 61 on the liquid-taking pipe 60 of each cavity segment can be opened to obtain leachate after water-rock coupling at different levels for experimental research.

Step 5: After the experiment is completed, close the valves and the liquid pump 93; if pressurization is carried out during the experiment, the pressure of the tank body 10 is first unloaded; the top cover 102 and the bottom cover 103 are opened for discharging, Drain the waste liquid in the liquid storage tank 90, remove the loading plate 50, clean it, and dry it for later use.

From the above description, it can be seen that the above-mentioned embodiments of the present invention have achieved the following technical effects:

In the experimental device provided by the present invention, the experimental device includes a tank body 10, a first sealing member 21, a spray head 30, a pressurizing member 40, a liquid-taking tube 60, and a plurality of carrier plates 50; the tank body 10 has an internal sealed cavity , the inner sealed cavity includes a first containing cavity 11 and a second containing cavity 12 located below the first containing cavity 11; the first sealing member 21 is movably arranged between the first containing cavity 11 and the second containing cavity 12 , so that the first housing chamber 11 and the second housing chamber 12 are communicated or disconnected; the nozzle 30 is arranged in the first housing chamber 11; the pressurizing part 40 has an air outlet, and the air outlet of the pressurizing part 40 is connected to the first housing chamber 11 in communication; a plurality of carrier plates 50 are vertically spaced in the second housing chamber 12 to divide the second housing chamber 12 into a plurality of chamber segments; the plurality of chamber segments are used to combine with a plurality of simulation materials 200 Correspondingly arranged, each cavity section is used to accommodate the corresponding simulation material 200; each carrier plate 50 is provided with a permeation hole 51, so that two adjacent cavity sections communicate, and then in any two adjacent cavity sections , the two adjacent chamber sections are respectively the upper chamber section and the lower chamber section, so that the liquid in the upper chamber section passes through the simulated material 200 and flows through the permeable holes 51 on the carrier plate 50 between the two adjacent chamber sections. To the lower chamber section; the liquid-taking pipe 60 is positioned on the outside of the tank body 10 and can be set on and off, and each chamber section is used to connect and communicate with the first nozzle of at least one liquid-taking pipe 60, and each liquid-taking pipe 60 The second nozzle is its liquid outlet; that is, the experimental device includes a plurality of liquid extraction tube groups, and a plurality of liquid extraction tube groups are arranged in one-to-one correspondence with a plurality of cavity sections, and each liquid extraction tube group includes at least one liquid extraction tube 60 , the first nozzles of the liquid-taking tubes 60 of each liquid-taking tube group are connected and communicated with the corresponding cavity segments.

Make the first accommodation chamber 11 and the second accommodation chamber 12 communicate, spray liquid into the second accommodation chamber 12 through the spray head 30, so that the liquid sprayed by the spray head passes through a plurality of chamber segments in sequence, that is, passes through the liquid in the plurality of chamber segments in sequence. For the simulated material 200, the liquid after passing through multiple cavity segments in sequence is the final liquid. When the first accommodating chamber 11 and the second accommodating chamber 12 were disconnected, gas was introduced into the first accommodating chamber 11 through the gas outlet of the pressurizing part 40 to check the airtightness of the tank body 10; when the first accommodating chamber 11 communicates with the second housing chamber 12 , gas is introduced into the second housing chamber 12 through the gas outlet of the pressurizing component 40 to increase the pressure in the second housing chamber 12 .

The filtrate in the corresponding chamber section is obtained through each liquid-taking pipe 60, wherein the filtrate in each chamber section refers to the liquid that enters the chamber section and forms after flowing through the simulated material 200 in the chamber section liquid.

The experimental device of the present application can use a similar simulation of the coupling process between rock mass and water body to realize the research on the water-rock coupling process inside the stratum structure, effectively solving the limitation problem of studying the water-rock coupling process under realistic conditions.

The experimental device of this application can be used to build rock formations through similar simulation calculations, and then use the built similar model structure to carry out water-rock coupling experiments, thereby revealing the chemical and mechanical mechanisms of purification of polluted water bodies under the filtration and retention of rock formations process. The experimental device of the present application has the following functions: it can simulate and study the coupling process between a single rock mass medium and water body, and can also simulate and study the physicochemical coupling process between different rock mass media (ie multi-layer rock mass) and water body; It can also simulate and study the purification process of rock mass and water body under the action of certain pressure and temperature; it can also study the purification process of other different filter media on water body, including the interception effect, filtration capacity and adsorption capacity of filter media on water body wait.

It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations". Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. An experimental device, comprising:

a tank body (10), the tank body (10) having an internal sealed cavity comprising a first accommodation cavity (11) and a second accommodation cavity (12) located below the first accommodation cavity (11);

-a first seal (21), said first seal (21) being movably arranged between said first housing chamber (11) and said second housing chamber (12) to connect or disconnect said first housing chamber (11) and said second housing chamber (12);

a spray head (30), the spray head (30) being arranged in the first accommodation chamber (11);

a pressurizing member (40), an air outlet of the pressurizing member (40) being in communication with the first accommodation chamber (11);

the material carrying plates (50) are arranged in the second accommodating cavity (12) at intervals along the vertical direction, so that the second accommodating cavity (12) is divided into a plurality of cavity sections; a plurality of cavity sections are used for being arranged in one-to-one correspondence with a plurality of simulation materials (200), and each cavity section is used for accommodating a corresponding simulation material (200); the material carrying plates (50) are respectively provided with a penetration hole (51);

the liquid taking pipes (60) are arranged on the outer sides of the tank body (10) and can be connected and disconnected, and each cavity section is used for being connected and communicated with at least one first pipe orifice of the liquid taking pipe (60).

2. The experimental device of claim 1, wherein the device comprises a plurality of sensors,

the liquid taking pipe (60) is provided with a first on-off valve (61) for controlling the on-off of the liquid taking pipe (60); and/or

The experimental device further comprises a temperature control system (70), wherein at least part of the temperature control system (70) is arranged in the second accommodating cavity (12) so as to detect and control the temperature in the second accommodating cavity (12).

3. The experimental device according to claim 1, further comprising a cover plate (80), the cover plate (80) being adapted to cover a simulated material (200) in a top chamber section of the plurality of chamber sections, the cover plate (80) being provided with a liquid permeable aperture.

4. The experimental device according to claim 1, characterized in that the internal sealed cavity further comprises a third receiving cavity (13) located below the second receiving cavity (12), the experimental device further comprising a second sealing member (22), the second sealing member (22) being movably arranged between the third receiving cavity (13) and the second receiving cavity (12) to connect or disconnect the third receiving cavity (13) and the second receiving cavity (12).

5. The experimental device of claim 1, wherein the device comprises a plurality of sensors,

the tank body (10) comprises a tank body (101) and a top sealing cover (102), and the spray head (30) is arranged on the top sealing cover (102); and/or

The number of the spray heads (30) is multiple, and the spray heads (30) are arranged at intervals.

6. The experimental set-up of claim 1, further comprising:

the liquid supply pipe (91) and the liquid storage tank (90), wherein a first pipe orifice of the liquid supply pipe (91) is connected and communicated with a liquid inlet of the spray head (30), and a second pipe orifice of the liquid supply pipe (91) stretches into liquid in the liquid storage tank (90); wherein, the liquid supply pipe (91) is provided with a pressure-bearing valve (95).

7. The experimental device according to claim 6, characterized in that a flowmeter (92) and/or a liquid pump (93) is arranged on the liquid supply pipe (91).

8. The experimental device according to claim 1, characterized in that it further comprises an air supply pipe (41), a first orifice of the air supply pipe (41) being connected to and communicating with the air outlet of the pressurizing member (40), a second orifice of the air supply pipe (41) being in communication with the first accommodation chamber (11); wherein, the air supply pipe (41) is provided with a pressure gauge (42).

9. The experimental device according to claim 4, characterized in that a drain hole communicated with the third accommodating cavity (13) is arranged at the bottom of the tank body (10), the experimental device further comprises a drain pipe (14) connected and communicated with the drain hole, and a third three-way stop valve (141) is arranged on the drain pipe (14).

10. The experimental device according to claim 1, wherein a plurality of penetrating holes (51) are arranged on each material carrying plate (50) at intervals.

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