Microscopic experiment device for water-rock reaction

Abstract

The utility model discloses a water-rock reaction microscopic experiment device which comprises a test bed and a shell located on the test bed, the top end and the bottom end of the shell are open, and the shell is made of transparent materials. The image acquisition device is used for shooting an internal image of the shell; the water tank is positioned above the shell; the top of the water tank is provided with a water injection port, and the bottom of the water tank is open and detachably connected with a mesh plate. The first water absorption layer is located in the water tank and placed on the mesh plate. The utility model provides a water-rock reaction microscopic experimental device, which aims to solve the problems that an experimental device in the prior art is single in function and difficult to simulate the water-rock reaction process of surface rocks, and achieves the purpose of simulating and observing the water-rock reaction process of the surface rocks.

Description

Technical Field

[0001] The utility model relates to the field of water-rock reaction experiments, and particularly relates to a microscopic experimental device for water-rock reaction. Background Art

[0002] In nature, water-rock interaction is a common phenomenon, which is the interaction between water and rocks (including rock and soil masses). This interaction involves the changes in the physical, chemical and mechanical properties of rocks by water, as well as the influence on the state of the medium by water. Water-rock interaction widely exists in surface rocks and deep within the earth's crust. Affected by water-rock interaction, the strength and mechanical behavior of rock masses will change. Therefore, experimental analysis of the water-rock interaction process is of great significance in geological research.

[0003] In the prior art, most water-rock interaction experiments focus on the interaction between groundwater and underground rock strata, with single functions and difficulty in simulating the more complex water action states experienced by surface rocks. This is because for underground rocks, only the action of formation water needs to be considered, while for rocks exposed on the surface, in addition to being infiltrated by groundwater, it is also necessary to consider rainwater and water accumulation caused by poor surface drainage. Therefore, it is necessary to improve and optimize the existing experimental devices. Content of the Utility Model

[0004] The utility model provides a microscopic experimental device for water-rock reaction to solve the problems of single function of the experimental device in the prior art and difficulty in simulating the water-rock reaction process of surface rocks, and achieve the purpose of simulating and observing the water-rock reaction process of surface rocks.

[0005] The utility model is realized by the following technical solutions:

[0006] A microscopic experimental device for water-rock reaction includes a test bench, and also includes a housing located on the test bench. The top and bottom of the housing are both open, and the housing is made of transparent material; it also includes an image acquisition device for taking images inside the housing and a water tank located above the housing; a water injection port is provided at the top of the water tank, the bottom of the water tank is open and detachably connected to a mesh plate; it also includes a first water absorption layer located inside the water tank and placed on the mesh plate.

[0007] Aiming at the problems of single function of the experimental device in the prior art and difficulty in simulating the water-rock reaction process of surface rocks, the utility model proposes a microscopic experimental device for water-rock reaction. In this device, a transparent housing is arranged on the test bench. The upper and lower ends of the housing are open. A water tank for simulating the rainfall environment and its auxiliary facilities are arranged at its upper end, and the lower end is directly the surface of the test bench. The shooting direction of the image acquisition device faces the inside of the housing.

[0008] Traditional rainwater simulation is generally achieved through spraying facilities. This method is prone to forming continuous water flows or large - scale water mists, which is far from the actual rainfall state. To overcome this problem, in this solution, the water tank is set with an open bottom structure, a perforated plate is connected to the bottom of the water tank, and a first water - absorbing layer is placed on the perforated plate. When water is injected into the water tank, the liquid will first be absorbed by the first water - absorbing layer. After the first water - absorbing layer is saturated with water, it will then drip downward through the holes on the perforated plate. Due to the existence of the first water - absorbing layer, it can buffer and temporarily store the liquid, so that the liquid will not continuously flow downward to form a water flow scouring the specimen below; secondly, the first water - absorbing layer can make the drip volume gradually increase at the beginning of the experiment and gradually decrease at the end of the experiment, which can more realistically simulate the actual rainfall environment, facilitating the simulation of the water - rock reaction process of surface rock and soil on rainy days and effective observation. In addition, the perforated plate in this application is detachably connected, so different perforated plates with different pore sizes can also be replaced for use according to specific needs.

[0009] When this application is specifically used, the specimen rock sample is placed inside the shell, and water is injected into the water tank through the water injection port. During this period, the change process of the specimen rock sample can be photographed through the image acquisition device. Among them, the water injection speed can be adaptively controlled according to the size of the precipitation to be simulated actually, such as injecting water at a constant speed or a variable speed.

[0010] Further, at least two support rods are arranged on the test bench, the top ends of the support rods are fixedly connected to a cross - beam, the water tank is detachably connected to the cross - beam, and the image acquisition device is installed on the support rods.

[0011] In this solution, the cross - beam is erected by the support rods to provide an installation position for the water tank. At the same time, the support rods themselves can also provide an installation position for the image acquisition device.

[0012] Further, a shell door is arranged on the side of the shell, and a liquid level sensor is arranged inside the water tank. The specimen rock sample can be placed or taken out by opening the shell door; the liquid level height inside the water tank can be monitored in real time through the liquid level sensor, which is conducive to carrying out expansions such as automatic water replenishment.

[0013] Further, on the inner and outer walls of the side of the shell facing the image acquisition device, a first guide rail and a second guide rail are respectively arranged; a magnetic brush is slidably fitted on the first guide rail, and a permanent magnet for adsorbing the magnetic brush is slidably fitted on the second guide rail.

[0014] In this application, the image acquisition device needs to capture image data through a transparent housing. Since there are facilities for simulating rainfall inside the housing, if there are water droplets on the inner wall of the housing, it is likely to cause relatively serious interference to the captured images of the image acquisition device, and it is not convenient to open the housing for cleaning during the experiment. To overcome this problem, in this solution, a first guide rail is provided on the inner wall of the housing, and a second guide rail is provided on the outer wall on the same side of the housing. Through the cooperation of a permanent magnet and a magnetic brush, the cleaning of water droplets or water stains on the inner wall surface can be achieved without opening the housing. Specifically, when cleaning is required, the staff only needs to drive the permanent magnet to slide along the second guide rail outside the housing, which can drive the magnetic brush to move synchronously. Of course, neither the second guide rail nor the permanent magnet in this solution should interfere with the image acquisition device.

[0015] Further, on the top surface of the test bench, a groove located inside the housing is provided, and a water inlet and drainage channel is provided at the bottom of the groove. In this solution, the test specimen rock sample is placed in the groove for the experiment; among them, the water inlet and drainage channel can be used as a water inlet channel or a drainage channel.

[0016] When simulating a rainfall environment in this application, the water inlet and drainage channel is externally connected to a drainage facility; this solution can also connect a water source to the outer end of the water inlet and drainage channel, supply water to the inside of the groove through the water inlet and drainage channel, and then simulate the state when there is water accumulation on the ground, so as to conduct microcosmic experiments on the water-rock reaction under the water accumulation state.

[0017] Further, a second water absorption layer is placed inside the groove.

[0018] When simulating a rainfall environment in this application, the presence of the second water absorption layer can simulate the water absorption and immersion ability of the surface soil, and thus more accurately simulate the water-rock reaction process of the surface rock and soil under the action of rainwater in the non-water accumulation area.

[0019] In addition, this solution can also make the upper water tank not work, only supply water to the inside of the groove through the water inlet and drainage channel, make the second water absorption layer gradually absorb water until it is saturated, and then gradually conduct the water to the bottom of the test specimen, so as to simulate the infiltration process of groundwater, and then simulate the water-rock reaction process under the action of groundwater infiltration.

[0020] Further, it also includes a partition component detachably connected inside the groove. The partition component is used to be laid flat in the groove and divide the groove into upper and lower parts; the partition component includes a permeable partition and a sealed partition.

[0021] In this solution, a permeable partition or a sealed partition, or neither of them can be selected according to needs. Specifically:

[0022] When simulating a rainfall environment, it is recommended to use a permeable partition and place the test specimen on the permeable partition;

[0023] When simulating the infiltration process of groundwater, it is recommended not to use the partition assembly and place the specimen on the second water-absorbing layer.

[0024] When simulating the state of water accumulation on the ground: If the simulated water accumulation is caused by rainfall, it is recommended to use a sealed partition and place the specimen on the sealed partition; if the simulated water accumulation is caused by groundwater, it is recommended not to use the partition assembly and remove the second water-absorbing layer, and directly place the specimen at the bottom of the groove.

[0025] Furthermore, on opposite side walls of the groove, positioning grooves and through grooves facing each other are respectively provided, and the through grooves extend to the outer wall of the test bench; both the positioning grooves and the through grooves are matched with the permeable partition and the sealed partition.

[0026] In this solution, the permeable partition or the sealed partition is inserted into the interior of the test bench from the through groove and then passes through the groove and enters the positioning groove to achieve stable connection.

[0027] Furthermore, a plurality of permeable holes are formed in the permeable partition, and a first handle is provided at the end of the permeable partition. A first sealing gasket is sleeved at one end of the sealed partition that is matched with the positioning groove, a second sealing gasket is sleeved at one end of the sealed partition that is matched with the through groove, and a second handle is provided at the end of the sealed partition.

[0028] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0029] 1. The microcosmic experimental device for water-rock reaction of the present utility model can effectively simulate the water-rock reaction process of surface rocks and make a detailed record through the image acquisition device.

[0030] 2. The microcosmic experimental device for water-rock reaction of the present utility model can more realistically simulate the actual rainfall environment, which is beneficial to simulating the water-rock reaction process of surface rock and soil on rainy days and making effective observations.

[0031] 3. The microcosmic experimental device for water-rock reaction of the present utility model can clean the water droplets or water stains on the inner wall surface without opening the shell, thereby reducing the interference with the shooting effect of the image acquisition device.

[0032] 4. The microcosmic experimental device for water-rock reaction of the present utility model can not only simulate the rainfall environment, but also simulate the infiltration process of groundwater, the state of water accumulation on the ground, etc., significantly improving the functionality and expanding the experimental scope. Description of the Drawings

[0033] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not limit the embodiments of the present utility model. In the drawings:

[0034] Figure 1Schematic diagram of the specific embodiment of the present utility model;

[0035] Figure 2 Cross-sectional view of the water tank in the specific embodiment of the present utility model;

[0036] Figure 3 Cross-sectional view of the test bench and the housing in the specific embodiment of the present utility model;

[0037] Figure 4 Schematic diagram of the structure of the water-permeable partition in the specific embodiment of the present utility model;

[0038] Figure 5 Schematic diagram of the structure of the sealing partition in the specific embodiment of the present utility model.

[0039] Labels in the drawings and corresponding component names:

[0040] 1 - Test bench, 2 - Housing, 3 - Image acquisition device, 4 - Water tank, 5 - Water injection port, 6 - Mesh plate, 7 - First water absorption layer, 8 - Support rod, 9 - Cross beam, 10 - Housing door, 11 - Liquid level sensor, 12 - First guide rail, 13 - Second guide rail, 14 - Magnetic brush, 15 - Permanent magnet, 16 - Groove, 17 - Water inlet and drain channel, 18 - Second water absorption layer, 19 - Water-permeable partition, 20 - Sealing partition, 21 - Positioning groove, 22 - Through groove, 23 - Water-permeable hole, 24 - First handle, 25 - First sealing gasket, 26 - Second sealing gasket, 27 - Second handle. Detailed implementation manners

[0041] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with the embodiments and the drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and shall not be construed as a limitation to the present utility model. In the description of the present application, it should be understood that the orientation or positional relationships indicated by terms such as "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the protection scope of the present application.

[0042] Embodiment 1:

[0043] As Figure 1 And Figure 2A microscopic experimental device for water-rock reaction as shown, comprising a test bench 1, a housing 2 located on the test bench 1. The top and bottom of the housing 2 are both open, and the housing 2 is made of a transparent material; it further comprises an image acquisition device 3 for photographing the internal image of the housing 2, and a water tank 4 located above the housing 2; a water injection port 5 is provided at the top of the water tank 4, the bottom of the water tank 4 is open and detachably connected to a mesh plate 6; it further comprises a first water absorption layer 7 located inside the water tank 4 and placed on the mesh plate 6. The first water absorption layer 7 is preferably made of sponge.

[0044] Two support rods 8 are provided on the test bench 1, the tops of the two support rods are fixedly connected to a cross beam 9, the water tank 4 is detachably connected to the cross beam 9, and the image acquisition device 3 is installed on the support rod 8.

[0045] In this embodiment, the housing 2 is a square structure surrounded by four plates; one side of the housing 2 facing the image acquisition device 3 is partially or entirely made of quartz glass, and a shell door 10 is hinged to the front of the housing 2.

[0046] More preferably, a liquid level sensor 11 is provided inside the water tank 4; the bottom height of the measurement range of the liquid level sensor 11 is equal to the top surface height of the first water absorption layer.

[0047] More preferably, the image acquisition device 3 is a high-definition camera, which is installed on a base. The base is slidably matched with the support rod and is equipped with a locking mechanism, and the height can be flexibly adjusted as needed.

[0048] Embodiment 2:

[0049] A microscopic experimental device for water-rock reaction, on the basis of Embodiment 1, as Figure 3 shown, on the inner and outer side walls of the side of the housing 2 facing the image acquisition device 3, a first guide rail 12 and a second guide rail 13 are respectively provided; a magnetic brush 14 is slidably matched on the first guide rail 12, and a permanent magnet 15 for adsorbing the magnetic brush 14 is slidably matched on the second guide rail 13.

[0050] In this embodiment, both the first guide rail 12 and the second guide rail 13 are located at the transverse two ends of the housing side wall; the permanent magnet 15 is only located at the transverse two ends and will not interfere with the image acquisition device 3.

[0051] Embodiment 3:

[0052] A microscopic experimental device for water-rock reaction, on the basis of Embodiment 1 or 2, as Figures 1 to 5 shown, on the top surface of the test bench 1, a groove 16 located inside the housing 2 is provided, and a water inlet and drainage channel 17 is provided at the bottom of the groove 16.

[0053] A second water absorption layer 18 is placed inside the groove 16.

[0054] It further includes a partition component detachably connected inside the groove 16. The partition component is used to be laid flat in the groove 16 and divide the groove 16 into upper and lower parts; the partition component includes a permeable partition 19 and a sealed partition 20.

[0055] On the opposite side walls of the groove 16, there are respectively provided facing positioning grooves 21 and through grooves 22. The through groove 22 extends to the outer wall of the test bench 1; both the positioning groove 21 and the through groove 22 are matched with the permeable partition 19 and the sealed partition 20.

[0056] It further includes a plug matching the through groove 22. When the permeable partition 19 and the sealed partition 20 are not needed, the through groove 22 can be blocked by the plug.

[0057] A number of permeable holes 23 are opened on the permeable partition 19, and a first handle 24 is provided at the end of the permeable partition 19. One end of the sealed partition 20 matching the positioning groove 21 is sleeved with a first sealing gasket 25, one end of the sealed partition 20 matching the through groove 22 is sleeved with a second sealing gasket 26, and a second handle 27 is provided at the end of the sealed partition 20.

[0058] In this embodiment, the positioning groove 21 and the through groove 22 are at the same height, and the shapes and sizes of the permeable partition 19 and the sealed partition 20 are the same; and the height of the positioning groove 21 and the through groove 22 is equal to the thickness of the permeable partition 19 and the sealed partition 20.

[0059] Preferably, the top surface height of the second water absorption layer 18 is at the same height as the bottom surfaces of the positioning groove 21 and the through groove 22.

[0060] During the use of this embodiment:

[0061] When simulating a rainfall environment, use the permeable partition and place the specimen on the permeable partition;

[0062] When simulating the infiltration process of groundwater, do not use the partition component and place the specimen on the second water absorption layer;

[0063] When simulating the state of water accumulation on the ground: if the simulated water accumulation is caused by rainfall, use the sealed partition and place the specimen on the sealed partition; if the simulated water accumulation is caused by groundwater, do not use the partition component and take out the second water absorption layer, and directly place the specimen at the bottom of the groove.

[0064] The specific embodiments described above further elaborate on the purpose, technical solution, and beneficial effects of the present utility model. It should be understood that the above description is only for the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0065] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. In addition, the term "connected" used in this text, without special explanation, can be directly connected or indirectly connected via other components.

Claims

1. A water-rock reaction micro-experimental device, comprising a test bench (1), characterized in that: The invention also comprises a shell (2) located on the test bench (1), the top and bottom of the shell (2) are open, and the shell (2) is made of a transparent material; it also comprises an image acquisition device (3) for photographing an image of the interior of the shell (2), and a water tank (4) located above the shell (2); a water inlet (5) is arranged at the top of the water tank (4), the bottom of the water tank (4) is open and detachably connected to a mesh plate (6); it also comprises a first water absorption layer (7) located inside the water tank (4) and placed on the mesh plate (6).

2. A water-rock reaction micro-experimental device according to claim 1, characterized in that: At least two support rods (8) are arranged on the test bench (1), the top end of each support rod (8) is fixedly connected to a cross beam (9), the water tank (4) is detachably connected to the cross beam (9), and the image acquisition device (3) is mounted on the support rod (8).

3. The water-rock reaction micro-experimental device according to claim 1 is characterized in that: A shell door (10) is arranged on the side of the shell (2), and a liquid level sensor (11) is arranged inside the water tank (4).

4. The water-rock reaction micro-experimental device according to claim 1 is characterized in that: A first guide rail (12) and a second guide rail (13) are respectively provided on the inner and outer side walls of the shell (2) on a side facing the image acquisition device (3); a magnetic brush (14) is slidably fitted on the first guide rail (12), and a permanent magnet (15) for adsorbing the magnetic brush (14) is slidably fitted on the second guide rail (13).

5. The water-rock reaction micro-experimental device according to claim 1 is characterized in that: The top surface of the test bench (1) is provided with a groove (16) located inside the shell (2), and the bottom of the groove (16) is provided with a water inlet and outlet channel (17).

6. The water-rock reaction micro-experimental device according to claim 5, characterized in that: A second water-absorbing layer (18) is placed inside the groove (16).

7. The water-rock reaction micro-experimental device according to claim 6, characterized in that: It also comprises a partition assembly detachably connected to the inside of the groove (16), the partition assembly being used to be laid flat in the groove (16) and to separate the groove (16) into an upper part and a lower part; the partition assembly comprises a water-permeable partition (19) and a sealing partition (20).

8. The water-rock reaction micro-experimental device according to claim 7, characterized in that: The opposite side walls of the groove (16) are respectively provided with a positioning groove (21) and a through groove (22) facing each other, and the through groove (22) extends to the outer wall of the test bench (1); the positioning groove (21) and the through groove (22) are matched with the water-permeable partition (19) and the sealing partition (20).

9. The water-rock reaction micro-experimental device according to claim 8, characterized in that: A plurality of water permeable holes (23) are provided on the water permeable partition (19), and a first handle (24) is provided at the end of the water permeable partition (19).

10. The water-rock reaction micro-experimental device according to claim 8, characterized in that: A first sealing gasket (25) is sleeved on one end of the sealing partition (20) that matches the positioning groove (21), a second sealing gasket (26) is sleeved on one end of the sealing partition (20) that matches the through groove (22), and a second handle (27) is provided at the end of the sealing partition (20).

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