An experimental device for simulating long-period material storage processes under complex geological conditions in deep earth

Abstract

The present invention discloses an experimental device for simulating a long-period material storage process under complex geological conditions in the deep earth, and relates to the field of material storage experiments, including a reaction container, wherein a plurality of bearing platforms are arranged inside the reaction container at equal intervals, and the plurality of bearing platforms are arranged along the height direction of the reaction container, and the bearing platforms are used to receive surrounding rocks. The experimental device for simulating a long-period material storage process under complex geological conditions in the deep earth accelerates the physical and chemical reactions between the stored material and the surrounding rocks by applying different pressures, setting different temperatures and humidities in the reaction container, and simulating the long-term material storage process in different environments, thereby revealing the influence mechanism of the stored material on the sealing surrounding rocks and the influence effect of the surrounding rocks on the storage under the long-term effect, clarifying the long-term material storage mechanism and law, solving the basic research problems of safe and effective storage of energy in deep underground space and long-term safe sealing and storage of solid waste, and providing an important reference for the effective utilization of deep underground space and the suitability evaluation thereof.

Description

Technical Field

[0001] The invention relates to a material storage experiment technology, and in particular to an experimental device for simulating a long-period material storage process under complex geological conditions in deep earth. Background Art

[0002] With the increasing demand for energy development and environmental protection, the safety and effectiveness of deep underground space, as an important place for energy storage and solid waste storage, has become a research focus. However, due to the complexity and variability of the underground environment, especially the more complex geological conditions in the deep underground space, the research on the mechanism of material storage faces many challenges.

[0003] In existing research, conducting in situ experiments on reservoir effects is the most direct way to reveal reservoir mechanisms. However, in situ experiments not only require high cost investments, such as drilling and purchase of monitoring equipment, but also require long-term continuous work, such as long-term monitoring and data collection. These limiting factors make it difficult to carry out in situ experiments on a large scale, especially under complex geological conditions.

[0004] Therefore, in order to overcome the limitations of in-situ experiments, researchers have been seeking more economical and efficient experimental methods. As an alternative method, simulation experiments have the advantages of low cost, short cycle, and controllable conditions. They have gradually become an important means to study the mechanism of material storage. However, existing simulation experimental devices often have single functions and it is difficult to simulate the complex geological conditions and material storage processes in deep underground space, resulting in large differences between experimental results and actual conditions. Summary of the invention

[0005] The purpose of the present invention is to provide an experimental device for simulating long-period material storage processes under complex geological conditions in the deep earth, so as to solve the above-mentioned shortcomings in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an experimental device for simulating a long-period material storage process under complex geological conditions in the deep earth, comprising a reaction container, a plurality of bearing platforms are arranged inside the reaction container, the plurality of bearing platforms are arranged at equal intervals along the height direction of the reaction container, and the bearing platforms are used to receive surrounding rocks;

[0007] A pressurizing device is connected to the top of the reaction vessel, and is used to introduce inert gas into the reaction vessel for pressurization;

[0008] A liquid delivery mechanism is connected to one side of the reaction container, and the liquid delivery mechanism is used to deliver liquid into the reaction container and to discharge the liquid in the reaction container;

[0009] A thermometer and a pressure gauge are fixedly installed on the top of the reaction vessel.

[0010] Furthermore, the pressurizing device includes a high-pressure gas tank, the outlet end of the high-pressure gas tank is connected to the A pipeline, the end of the A pipeline is connected to the top of the reaction container, and the A valve is fixedly installed on the A pipeline.

[0011] Furthermore, the top of the reaction container is connected to a pressure relief pipe, and a regulating valve is fixedly installed on the pressure relief pipe.

[0012] Furthermore, the liquid delivery mechanism includes a delivery pump and a C pipe, the input end of the delivery pump is connected to the B pipe, the end of the B pipe is connected to an external storage tank storing liquid, the output end of the delivery pump is connected to the D pipe, the end of the D pipe passes through the bottom side wall of the reaction container and is fixedly connected to the reaction container, a B valve is fixedly installed on the D pipe, the top end of the C pipe passes through the bottom of the reaction container and is fixedly connected to the reaction container, and a C valve is fixedly installed on the C pipe.

[0013] Furthermore, a temperature regulator, a humidity regulator and a humidity sensor are fixedly installed on the inner wall of the upper end of the reaction container.

[0014] Furthermore, the supporting platform can be detachably mounted on the inner wall of the reaction container.

[0015] Furthermore, a plurality of supporting feet are fixedly installed at the bottom of each of the plurality of support platforms, the top of the support platform is fixedly connected to the bottom end of the adjacent supporting feet, and the bottom end of the supporting foot located at the bottom is fixedly connected to the reaction container.

[0016] Furthermore, a slow flow mechanism is also provided, which includes a fixed cylinder, the support platform is located on the inner side of the fixed cylinder, an annular groove with an open upper end is provided on the fixed cylinder, N annular plates are provided inside the annular groove, N is an integer and N is greater than 1, the Nth annular plate is located on the outer side of the N-1th annular plate, the wall thickness of the N annular plates is H, and the outer diameter of the Nth annular plate minus the outer diameter of the N-1th annular plate is equal to H, and a driving member is connected to one side of the annular plate to drive it to move along the height direction of the reaction container.

[0017] Furthermore, the driving member includes two telescopic driving members, and the two telescopic driving members are symmetrically distributed on the outside of the outermost annular plate. The telescopic driving member is fixedly installed on the bottom of the reaction container. The movable end of the telescopic driving member penetrates the reaction container and extends to the interior of the reaction container. The movable end of the telescopic driving member is fixedly connected to the outer wall of the outermost annular plate. Two vertical grooves are symmetrically opened on the outer wall of the annular plate except the outermost annular plate. A slider is slidably connected to the inner wall of the vertical groove, and one side of the slider is fixedly connected to the inner wall of the adjacent annular plate.

[0018] Furthermore, the slow flow mechanism also includes a D pipe, one end of which passes through the bottom side wall of the reaction container and is fixedly connected to the reaction container, and a D valve is fixedly installed on the D pipe.

[0019] Compared with the prior art, the present invention provides an experimental device for simulating the long-term material storage process under complex geological conditions in the deep earth. By applying different pressures, setting different temperatures and humidities in the reaction container, the physical and chemical reactions between the stored material and the surrounding rock are accelerated, and the long-term material storage process in different environments is simulated, thereby revealing the influence mechanism of the stored material on the surrounding rock under the long-term effect and the influence effect of the surrounding rock on the storage, clarifying the long-term mechanism and law of material storage, solving the basic research problems of safe and effective storage of energy in deep underground space and long-term safe storage of solid waste, and providing an important reference for the effective utilization of deep underground space and its suitability evaluation.

[0020] The outermost annular plate is driven to rise by extending the telescopic driving member. When the outermost annular plate rises, the liquid continues to overflow from the top of the outermost annular plate, and the movement of the outermost annular plate drives the slider to move. When the slider slides to the top of a vertical groove connected to it, the slider pushes the inner wall of the vertical groove to drive the annular plate adjacent to the outermost annular plate to rise. Since N annular plates are provided, when multiple supporting platforms are provided, the liquid can slowly immerse the surrounding rock on the supporting platform, thereby reducing the disturbance and impact of the liquid on the surrounding rock when entering the reaction vessel, thereby improving the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 A schematic diagram of the overall external structure provided by an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall cross-sectional structure provided in Embodiment 1 of the present invention;

[0024] Figure 3 A schematic diagram of a partial cross-sectional structure provided in Embodiment 1 of the present invention;

[0025] Figure 4 A partial cross-sectional structural schematic diagram provided for Embodiment 2 of the present invention;

[0026] Figure 5 The embodiment of the present invention provides Figure 4 A is an enlarged schematic diagram;

[0027] Figure 6 This is a schematic diagram of the explosion structure of the fixed cylinder and the annular plate provided in the second embodiment of the present invention.

[0028] Description of reference numerals:

[0029] 1. Reaction vessel; 101. Carrying platform; 102. Support foot; 2. Pressurizing device; 21. High-pressure gas tank; 22. Pipeline A; 23. Valve A; 3. Liquid conveying mechanism; 31. Conveying pump; 32. Pipeline B; 33. Valve B; 34. Pipeline C; 35. Valve C; 36. Pipeline D; 4. Thermometer; 5. Pressure gauge; 6. Pressure relief pipe; 7. Regulating valve; 8. Slow flow mechanism; 81. Fixed cylinder; 82. Ring plate; 83. Telescopic drive member; 84. Vertical groove; 85. Sliding block; 86. Pipeline E; 87. Valve D; 9. Temperature regulator; 10. Humidity regulator; 11. Humidity sensor. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1:

[0032] See also Figures 1 to 3 , an experimental device for simulating a long-period material storage process under complex geological conditions in the deep earth, comprising a reaction vessel 1, a plurality of bearing platforms 101 are arranged inside the reaction vessel 1, the plurality of bearing platforms 101 are arranged at equal intervals along the height direction of the reaction vessel 1, and the bearing platforms 101 are used to receive surrounding rocks;

[0033] A pressurizing device 2 is connected to the top of the reaction container 1, and the pressurizing device 2 is used to introduce an inert gas into the reaction container 1 for pressurization;

[0034] A liquid delivery mechanism 3 is connected to one side of the reaction container 1, and the liquid delivery mechanism 3 is used to deliver liquid into the reaction container 1 and to discharge the liquid in the reaction container 1;

[0035] A thermometer 4 and a pressure gauge 5 are fixedly installed on the top of the reaction container 1 . The thermometer 4 is used to measure the temperature inside the reaction container 1 in real time, and the pressure gauge 5 is used to measure the pressure inside the reaction container 1 .

[0036] When studying the long-term interaction mechanism between the stored materials (such as solid waste, crude oil, water, etc.) and the surrounding rock in the process of simulating the storage of deep underground space, the in-situ experiment of material storage requires high costs and long-term continuous work, which restricts the effective study of the material storage mechanism of complex underground space. To this end, the surrounding rock is placed on the support platform 101 in the reaction vessel 1, wherein the reaction vessel 1 adopts a high-pressure reaction tank with the characteristics of high strength and corrosion resistance, and the liquid is transported into the reaction vessel 1 through the liquid conveying mechanism 3, that is, the stored material is transported into the reaction vessel 1. After the surrounding rock and the stored material are placed in the reaction vessel 1, an inert gas is introduced into the reaction vessel 1 through the pressurizing device 2, and the inside of the reaction vessel 1 is pressurized to apply different pressures to simulate the long-term action process of material storage in different environments, thereby revealing the influence mechanism of the stored material on the sealing surrounding rock and the influence effect of the surrounding rock on the storage under the long-term effect, and the temperature and pressure inside the reaction vessel 1 are monitored in real time through the thermometer 4 and the pressure gauge 5, and after the experiment is completed, the liquid in the reaction vessel 1 can be discharged through the liquid conveying mechanism 3.

[0037] The pressurizing device 2 includes a high-pressure gas tank 21, the outlet end of the high-pressure gas tank 21 is connected to the A pipe 22, the end of the A pipe 22 is connected to the top of the reaction vessel 1, and the A valve 23 is fixedly installed on the A pipe 22. Inert gas is stored in the high-pressure gas tank 21, and the inert gas can be input into the reaction vessel 1 by opening and closing the A valve 23 to adjust the pressure inside the reaction vessel 1.

[0038] The top of the reaction vessel 1 is connected to a pressure relief pipe 6 on which a regulating valve 7 is fixedly installed. When the pressure inside the reaction vessel 1 needs to be reduced, the regulating valve 7 can be opened to relieve the pressure of the reaction vessel 1, thereby effectively regulating the pressure inside the reaction vessel 1.

[0039] The liquid delivery mechanism 3 includes a delivery pump 31 and a C pipe 34. The input end of the delivery pump 31 is connected to a B pipe 32. The end of the B pipe 32 is connected to an external storage tank storing liquid. The output end of the delivery pump 31 is connected to a D pipe 36. The end of the D pipe 36 penetrates the bottom side wall of the reaction container 1 and is fixedly connected to the reaction container 1. A B valve 33 is fixedly installed on the D pipe 36. The top end of the C pipe 34 penetrates the bottom of the reaction container 1 and is fixedly connected to the reaction container 1. A C valve 35 is fixedly installed on the C pipe 34.

[0040] During operation, the end of the B pipe 32 is connected to a storage tank storing liquid, and the B valve 33 on the D pipe 36 is opened, so that the liquid stored in the storage tank can be delivered to the reaction vessel 1 through the delivery pump 31. When the liquid inside the reaction vessel 1 needs to be discharged, the C valve 35 on the C pipe 34 can be opened, and the liquid inside the reaction vessel 1 is discharged from the C pipe 34.

[0041] A temperature regulator 9, a humidity regulator 10 and a humidity sensor 11 are fixedly installed on the inner wall of the upper end of the reaction container 1, wherein the temperature regulator 9 includes an electric heating element, a cooling device and an A controller, and the A controller adopts an E5CN series temperature controller of Omron. According to the data provided by the thermometer 4, the A controller outputs a control signal to the electric heating element and the cooling device, and the electric heating element and the cooling device adjust the temperature in the reaction container 1. This is a prior art and will not be described in detail here.

[0042] The humidity sensor 11 adopts the HIH series humidity sensor of Honeywell, and the humidity regulator 10 includes a humidifier, a dehumidifier and a B controller, and the B controller is a humidity controller of Rockwell Automation. According to the data provided by the humidity sensor 11, the B controller outputs a control signal to the humidifier and the dehumidifier, and the humidifier and the dehumidifier work together to adjust the humidity in the reaction container 1. This is a prior art and will not be described in detail here.

[0043] By setting different temperatures and humidity to accelerate (promote) the physical and chemical reactions between the stored materials and the surrounding rocks, the long-term action process of material storage in different environments is simulated, thereby revealing the influence mechanism of the stored materials on the surrounding rocks under long-term effects and the influence effect of the surrounding rocks on the storage, and clarifying the long-term action mechanism and law of material storage.

[0044] The carrying platform 101 can be detachably mounted on the inner wall of the reaction container 1 , and the carrying platform 101 is fixed to the inner wall of the reaction container 1 by bolt connection.

[0045] By applying different pressures, setting different temperatures and humidities in the reaction vessel 1, the physical and chemical reactions between the liquid (stored material) and the surrounding rock are accelerated (promoted), and the long-term action process of material storage in different environments is simulated. This reveals the influence mechanism of the stored material on the surrounding rock under long-term effects and the influence effect of the surrounding rock on the storage, clarifies the long-term action mechanism and law of material storage, solves the basic research problems of safe and effective storage of energy in deep underground space and long-term safe storage of solid waste, and provides an important reference for the effective utilization of deep underground space and the suitability evaluation.

[0046] Embodiment 2:

[0047] See also Figure 1 , Figures 4 to 6 , an experimental device for simulating a long-period material storage process under complex geological conditions in the deep earth, comprising a reaction vessel 1, a plurality of bearing platforms 101 are arranged inside the reaction vessel 1, the plurality of bearing platforms 101 are arranged at equal intervals along the height direction of the reaction vessel 1, and the bearing platforms 101 are used to receive surrounding rocks;

[0048] A pressurizing device 2 is connected to the top of the reaction container 1, and the pressurizing device 2 is used to introduce an inert gas into the reaction container 1 for pressurization;

[0049] A liquid delivery mechanism 3 is connected to one side of the reaction container 1, and the liquid delivery mechanism 3 is used to deliver liquid into the reaction container 1 and to discharge the liquid in the reaction container 1;

[0050] A thermometer 4 and a pressure gauge 5 are fixedly installed on the top of the reaction container 1 . The thermometer 4 is used to measure the temperature inside the reaction container 1 in real time, and the pressure gauge 5 is used to measure the pressure inside the reaction container 1 .

[0051] When studying the long-term interaction mechanism between the stored materials (such as solid waste, crude oil, water, etc.) and the surrounding rock in the process of simulating the storage of deep underground space, the in-situ experiment of material storage requires high costs and long-term continuous work, which restricts the effective study of the material storage mechanism of complex underground space. To this end, the surrounding rock is placed on the support platform 101 in the reaction vessel 1, wherein the reaction vessel 1 adopts a high-pressure reaction tank with the characteristics of high strength and corrosion resistance, and the liquid is transported into the reaction vessel 1 through the liquid conveying mechanism 3, that is, the stored material is transported into the reaction vessel 1. After the surrounding rock and the stored material are placed in the reaction vessel 1, an inert gas is introduced into the reaction vessel 1 through the pressurizing device 2, and the inside of the reaction vessel 1 is pressurized to apply different pressures to simulate the long-term action process of material storage in different environments, thereby revealing the influence mechanism of the stored material on the sealing surrounding rock and the influence effect of the surrounding rock on the storage under the long-term effect, and the temperature and pressure inside the reaction vessel 1 are monitored in real time through the thermometer 4 and the pressure gauge 5, and after the experiment is completed, the liquid in the reaction vessel 1 can be discharged through the liquid conveying mechanism 3.

[0052] The pressurizing device 2 includes a high-pressure gas tank 21, the outlet end of the high-pressure gas tank 21 is connected to the A pipe 22, the end of the A pipe 22 is connected to the top of the reaction vessel 1, and the A valve 23 is fixedly installed on the A pipe 22. Inert gas is stored in the high-pressure gas tank 21, and the inert gas can be input into the reaction vessel 1 by opening and closing the A valve 23 to adjust the pressure inside the reaction vessel 1.

[0053] The top of the reaction vessel 1 is connected to a pressure relief pipe 6 on which a regulating valve 7 is fixedly installed. When the pressure inside the reaction vessel 1 needs to be reduced, the regulating valve 7 can be opened to relieve the pressure of the reaction vessel 1, thereby effectively regulating the pressure inside the reaction vessel 1.

[0054] The liquid delivery mechanism 3 includes a delivery pump 31 and a C pipe 34. The input end of the delivery pump 31 is connected to a B pipe 32. The end of the B pipe 32 is connected to an external storage tank storing liquid. The output end of the delivery pump 31 is connected to a D pipe 36. The end of the D pipe 36 penetrates the bottom side wall of the reaction container 1 and is fixedly connected to the reaction container 1. A B valve 33 is fixedly installed on the D pipe 36. The top end of the C pipe 34 penetrates the bottom of the reaction container 1 and is fixedly connected to the reaction container 1. A C valve 35 is fixedly installed on the C pipe 34.

[0055] During operation, the end of the B pipe 32 is connected to a storage tank storing liquid, and the B valve 33 on the D pipe 36 is opened, so that the liquid stored in the storage tank can be delivered to the reaction vessel 1 through the delivery pump 31. When the liquid inside the reaction vessel 1 needs to be discharged, the C valve 35 on the C pipe 34 can be opened, and the liquid inside the reaction vessel 1 is discharged from the C pipe 34.

[0056] A temperature regulator 9, a humidity regulator 10 and a humidity sensor 11 are fixedly installed on the inner wall of the upper end of the reaction container 1, wherein the temperature regulator 9 includes an electric heating element, a cooling device and an A controller, and the A controller adopts an E5CN series temperature controller of Omron. According to the data provided by the thermometer 4, the A controller outputs a control signal to the electric heating element and the cooling device, and the electric heating element and the cooling device adjust the temperature in the reaction container 1. This is a prior art and will not be described in detail here.

[0057] The humidity sensor 11 adopts the HIH series humidity sensor of Honeywell, and the humidity regulator 10 includes a humidifier, a dehumidifier and a B controller, and the B controller is a humidity controller of Rockwell Automation. According to the data provided by the humidity sensor 11, the B controller outputs a control signal to the humidifier and the dehumidifier, and the humidifier and the dehumidifier work together to adjust the humidity in the reaction container 1. This is a prior art and will not be described in detail here.

[0058] By setting different temperatures and humidity to accelerate (promote) the physical and chemical reactions between the stored materials and the surrounding rocks, the long-term action process of material storage in different environments is simulated, thereby revealing the influence mechanism of the stored materials on the surrounding rocks under long-term effects and the influence effect of the surrounding rocks on the storage, and clarifying the long-term action mechanism and law of material storage.

[0059] When conducting the experiment, the surrounding rock is first placed on the supporting platform 101, and then the liquid is transported to the reaction container 1 through the liquid transport mechanism 3. The flow of the liquid will cause certain disturbances to the surrounding rock, and there is a dynamic water pressure generated by the liquid flow acting on the surrounding rock, increasing its instability. For this reason, multiple supporting feet 102 are fixedly installed at the bottom of multiple supporting platforms 101, the top of the supporting platform 101 is fixedly connected to the bottom end of the supporting foot 102 adjacent to it, and the bottom end of the supporting foot 102 located at the bottom is fixedly connected to the reaction container 1, and a slow flow mechanism 8 is provided, which is used to slow down the disturbance and impact of the liquid on the surrounding rock;

[0060] The slow flow mechanism 8 includes a fixed cylinder 81, a support platform 101 is located on the inner side of the fixed cylinder 81, an annular groove with an open upper end is provided on the fixed cylinder 81, N annular plates 82 are arranged inside the annular groove, N is an integer and N is greater than 1, the Nth annular plate 82 is located on the outer side of the N-1th annular plate 82, the wall thickness of the N annular plates 82 is H, and the outer diameter of the Nth annular plate 82 minus the outer diameter of the N-1th annular plate 82 is equal to H, and one side of the annular plate 82 is connected to a driving member for driving it to move along the height direction of the reaction container 1;

[0061] The driving member includes two telescopic driving members 83, and the telescopic driving members 83 adopt a telescopic cylinder or a hydraulic cylinder. The two telescopic driving members 83 are symmetrically distributed on the outside of the outermost annular plate 82, and the telescopic driving members 83 are fixedly installed on the bottom of the reaction vessel 1. The moving end of the telescopic driving member 83 penetrates the reaction vessel 1 and extends to the inside of the reaction vessel 1. The moving end of the telescopic driving member 83 is fixedly connected to the outer wall of the outermost annular plate 82. Two vertical grooves 84 are symmetrically provided on the outer wall of the annular plate 82 except the outermost annular plate 82. A slider 85 is slidably connected to the inner wall of the vertical groove 84, and one side of the slider 85 is fixedly connected to the inner wall of the adjacent annular plate 82.

[0062] When the liquid enters the reaction container 1, the liquid first enters the space formed by the outer side of the fixed cylinder 81 and the inner wall of the reaction container 1. As the liquid is continuously transported, the liquid overflows from the top of the fixed cylinder 81 to the inner side of the fixed cylinder 81, causing the liquid level inside the fixed cylinder 81 to slowly rise until it is submerged, thereby reducing the disturbance and impact of the liquid on the surrounding rock on the supporting platform 101 at the bottom. When the liquid submerges the fixed cylinder 81, the outermost annular plate 82 is driven to rise by the extension of the telescopic driving member 83. When the outermost annular plate 82 rises, the liquid continues to flow from the outermost annular plate 82. The top of the annular plate 82 overflows, and when the outermost annular plate 82 moves, the slider 85 moves. When the slider 85 slides to the top of a vertical groove 84 connected to it, the slider 85 pushes the inner wall of the vertical groove 84 to drive the annular plate 82 adjacent to the outermost annular plate 82 to rise. Since N annular plates 82 are provided, it can be achieved that when multiple supporting platforms 101 are provided, the liquid slowly immerses the surrounding rock on the supporting platform 101, reduces the disturbance and impact of the liquid on the surrounding rock when entering the reaction container 1, and improves the accuracy of the experiment;

[0063] A liquid level sensor is provided inside the reaction container 1, and the liquid level in the reaction container 1 is measured by the liquid level sensor, and the extension amount of the moving end of the telescopic driving member 83 is controlled according to the measured liquid level;

[0064] The slow flow mechanism 8 also includes an E pipe 86, one end of which passes through the bottom side wall of the reaction container 1 and is fixedly connected to the reaction container 1. A D valve 87 is fixedly installed on the E pipe 86. By opening the D valve 87, the liquid in the space formed by the outer side of the fixed cylinder 81 and the inner wall of the reaction container 1 is discharged.

[0065] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An experimental device for simulating long-period material storage processes under complex geological conditions in deep earth, characterized in that: It comprises a reaction container (1), wherein a plurality of bearing platforms (101) are arranged inside the reaction container (1), the plurality of bearing platforms (101) are arranged at equal intervals along the height direction of the reaction container (1), and the bearing platforms (101) are used to receive surrounding rocks; The top of the reaction container (1) is connected to a pressurizing device (2), and the pressurizing device (2) is used to introduce an inert gas into the reaction container (1) for pressurization; A liquid conveying mechanism (3) is connected to one side of the reaction container (1), and the liquid conveying mechanism (3) is used to convey liquid into the reaction container (1) and to discharge the liquid in the reaction container (1); A thermometer (4) and a pressure gauge (5) are fixedly installed on the top of the reaction container (1); A plurality of supporting legs (102) are fixedly mounted at the bottom of each of the plurality of supporting platforms (101); the top of the supporting platform (101) is fixedly connected to the bottom of the adjacent supporting legs (102); and the bottom of the supporting leg (102) at the bottom is fixedly connected to the reaction container (1); A slow flow mechanism (8) is also provided, the slow flow mechanism (8) comprising a fixed cylinder (81), a bearing platform (101) being located on the inner side of the fixed cylinder (81), an annular groove with an open upper end being provided on the fixed cylinder (81), N annular plates (82) being provided inside the annular groove, N being an integer and N being greater than 1, the Nth annular plate (82) being located on the outer side of the N-1th annular plate (82), the wall thickness of the N annular plates (82) being H, and the outer diameter of the Nth annular plate (82) minus the outer diameter of the N-1th annular plate (82) being equal to H, and a driving member for driving the annular plate (82) to move along the height direction of the reaction container (1) is connected to one side of the annular plate (82); The driving member comprises two telescopic driving members (83), the two telescopic driving members (83) are symmetrically distributed on the outer side of the outermost annular plate (82), the telescopic driving member (83) is fixedly installed on the bottom of the reaction container (1), the movable end of the telescopic driving member (83) penetrates the reaction container (1) and extends to the inside of the reaction container (1), the movable end of the telescopic driving member (83) is fixedly connected to the outer side wall of the outermost annular plate (82), two vertical grooves (84) are symmetrically provided on the outer side wall of the annular plate (82) other than the outermost annular plate (82), a slider (85) is slidably connected to the inner wall of the vertical groove (84), one side of the slider (85) is fixedly connected to the inner side wall of the adjacent annular plate (82), and the slow flow mechanism (8) further comprises an E pipe (86), one end of the E pipe (86) penetrates the bottom side wall of the reaction container (1) and is fixedly connected to the reaction container (1), and a D valve (87) is fixedly installed on the E pipe (86).

2. The experimental device for simulating long-period material storage process under complex geological conditions in deep earth according to claim 1, characterized in that: The pressurizing device (2) comprises a high-pressure gas tank (21), the outlet end of the high-pressure gas tank (21) is connected to an A pipe (22), the end of the A pipe (22) is connected to the top of the reaction container (1), and an A valve (23) is fixedly installed on the A pipe (22).

3. The experimental device for simulating long-period material storage process under deep and complex geological conditions according to claim 1, characterized in that: The top of the reaction container (1) is connected to a pressure relief pipe (6), and a regulating valve (7) is fixedly installed on the pressure relief pipe (6).

4. The experimental device for simulating long-period material storage process under complex geological conditions in deep earth according to claim 1, characterized in that: The liquid delivery mechanism (3) comprises a delivery pump (31) and a C pipe (34); the input end of the delivery pump (31) is connected to a B pipe (32); the end of the B pipe (32) is connected to an external storage tank storing liquid; the output end of the delivery pump (31) is connected to a D pipe (36); the end of the D pipe (36) penetrates the bottom side wall of the reaction container (1) and is fixedly connected to the reaction container (1); a B valve (33) is fixedly installed on the D pipe (36); the top end of the C pipe (34) penetrates the bottom of the reaction container (1) and is fixedly connected to the reaction container (1); and a C valve (35) is fixedly installed on the C pipe (34).

5. The experimental device for simulating long-period material storage process under deep and complex geological conditions according to claim 1, characterized in that: A temperature regulator (9), a humidity regulator (10) and a humidity sensor (11) are fixedly installed on the inner wall of the upper end of the reaction container (1).

6. The experimental device for simulating long-period material storage process under deep and complex geological conditions according to claim 1, characterized in that: The supporting platform (101) is detachably mounted on the inner wall of the reaction container (1).

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