Experimental device, experimental system and experimental method for testing oil-water separation performance

Abstract

The application belongs to the technical field of petroleum processing, and particularly relates to an experimental device, an experimental system and an experimental method for testing oil-water separation performance. The experimental device comprises a test pipe section, which is used for containing a first to-be-tested liquid and has a cavity inside. Two opposite side walls of the test pipe section have visual windows. A bottom wall of the test pipe section is provided with a drain port and a first mounting groove. A top wall of the test pipe section is provided with an injection port for injecting a second to-be-tested liquid. The second to-be-tested liquid is an oil-containing liquid. A drain pipe is in communication with the drain port and is used for draining the first to-be-tested liquid and the second to-be-tested liquid after the experiment is completed. A functional component mounting assembly is detachably connected to an inner wall of the first mounting groove and is used for mounting a functional component. The cavity is used for oil-water separation of the second to-be-tested liquid and the first to-be-tested liquid in the functional component. The functional component is a corrugated plate poly structure or a cylindrical poly structure. The experimental device has high universality and can improve experimental efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of petroleum processing, and particularly relates to an experimental device, an experimental system and an experimental method for testing oil-water separation performance. BACKGROUND

[0002] Multiphase flow widely exists in many fields such as energy, chemical industry, environment, and biomedical science, including oil-gas-water multiphase flow in oil-gas mixed pipelines, phase separation behavior of oil-water separation and oil-gas separation, foam flooding for enhanced oil recovery, multiphase percolation in carbon dioxide flooding, liquid-liquid two-phase dispersion and coalescence kinetics in chemical reactions, droplet-gas two-phase flow and heat transfer, etc. In order to further visually confirm the transient phenomena in the multiphase flow process, optical and non-optical visualization technologies under high temperature and high pressure environments, opaque media, and extreme scales are further developed.

[0003] Although most laboratories currently have visualization technologies and equipment for observing microscale, transient processes, and interface dynamics, the visualization devices built by the prior art are only suitable for experiments on single functional components, and when new experiments are performed, a new set of experimental devices suitable for new functional components needs to be manufactured, and the experimental system needs to be rebuilt, resulting in low experimental efficiency. SUMMARY

[0004] The purpose of the present application is to provide an experimental device, an experimental system and an experimental method for testing oil-water separation performance, which solves the technical problem of low universality of the multiphase flow oil-water separation experimental device in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application provides an experimental device for testing oil-water separation performance, which comprises:

[0006] A test pipe section for containing a first liquid to be tested and having a cavity inside, two opposite side walls of the test pipe section having visualization windows, a bottom wall of the test pipe section being provided with a drain port and a first mounting groove, a top wall of the test pipe section being provided with an injection port for injecting a second liquid to be tested, the second liquid to be tested being an oil-containing liquid;

[0007] A drain pipe in communication with the drain port and used for draining the first liquid to be tested and the second liquid to be tested after reaction;

[0008] A functional component mounting assembly detachably connected with the inner wall of the first mounting groove and used for mounting a functional component, the cavity being used for oil-water separation of the second liquid to be tested and the first liquid to be tested in the functional component, wherein the functional component is a corrugated plate aggregation component or a cylindrical aggregation component.

[0009] In some embodiments, the functional component mounting assembly comprises: a first mounting plate, a bottom wall of the first mounting plate abutting against a bottom wall of the test tube segment; a first clamping portion located in a middle portion of the first mounting plate, the first clamping portion clamped in the first mounting slot, and the first clamping portion being magnetically connected or bonded to the bottom wall of the first mounting slot.

[0010] In some embodiments, the first mounting slot penetrates through the bottom wall of the test tube segment, a plurality of first mounting holes are uniformly arranged along the edge of the first mounting slot, and the functional component mounting assembly comprises: a second mounting plate, a bottom wall of the second mounting plate abutting against the bottom wall of the test tube segment, a plurality of second mounting holes being arranged on the second mounting plate, and the plurality of first mounting holes and the plurality of second mounting holes corresponding to each other in position; a second clamping portion located in a middle portion of the second mounting plate, the second clamping portion clamped in the first mounting slot; and a plurality of first locking members, the number of the first locking members being the same as the number of the first mounting holes, and the first locking members being used for locking the mounting plate and the bottom wall of the first mounting slot.

[0011] In some embodiments, an annular groove is arranged on the outer periphery of each of the plurality of first mounting holes, and the functional component mounting assembly further comprises: a sealing member mounted in the annular groove, the sealing member sealingly separating the cavity from the outside.

[0012] In some embodiments, the two sides of the test tube segment are provided with mounting frame bodies, a second mounting slot is arranged on the side of each of the mounting frame bodies away from the test tube segment, a visual window is arranged on the mounting frame body, and a glass plate corresponding to the visual window is detachably mounted in the second mounting slot.

[0013] In some embodiments, the experimental device further comprises: an annular pressing plate, the glass plate being located between the annular pressing plate and the mounting frame body; an annular sealing gasket sealingly arranged between the glass plate and the bottom wall of the second mounting slot; and a plurality of second locking members, each of the second locking members penetrating through the annular pressing plate, the glass plate and the annular sealing gasket in sequence and being inserted into the mounting frame body, and the second locking members being used for locking the annular pressing plate, the glass plate, the annular sealing gasket and the mounting frame body.

[0014] In some embodiments, the experimental device further comprises: two flow guide tube segments respectively arranged at the two ends of the test tube segment, the inner cavities of the flow guide tube segments being in communication with the cavity, the flow guide tube segments being used for guiding the first liquid to be tested to flow in or out, the flow guide tube segments being arranged in a gradually expanding manner along the direction towards the test tube segment, and the sides of the two flow guide tube segments away from the test tube segment being in communication with the annular tube segment.

[0015] In some embodiments, the experimental device for testing the oil-water separation performance further comprises: two support frames mounted below the test tube segment and used for supporting the test tube segment, and one of the support frames is provided with a through hole, and a drain pipe penetrates through the through hole and abuts against the inner wall of the through hole.

[0016] The second aspect of the present application provides an experimental system for testing oil-water separation performance, comprising: the experimental device for testing oil-water separation performance; an illuminating element arranged towards the visualization window; an image acquisition element arranged towards the visualization window and used for acquiring images and / or videos of oil-water separation in the test pipe segment; and a injecting element, the injecting port of which is in communication with the injecting port and used for injecting the second to-be-tested liquid into the cavity.

[0017] The third aspect of the present application provides an experimental method for testing oil-water separation performance, applied to the experimental system for testing oil-water separation performance, comprising the following steps: heating the first to-be-tested liquid and the second to-be-tested liquid to a preset temperature respectively; installing the functional component in the cavity of the test pipe segment; introducing the heated first to-be-tested liquid into the cavity from the inlet end of the test pipe segment until the liquid level of the first to-be-tested liquid reaches a preset liquid level; controlling the outlet end of the test pipe segment to be opened; adjusting the flow rate of the first to-be-tested liquid at the inlet end and the outlet end of the test pipe segment so that the fluctuation range of the liquid level of the first to-be-tested liquid is lower than a preset range; starting the illuminating element and the image acquisition element; injecting a preset amount of the second to-be-tested liquid into the cavity; and determining the influence of the functional component on the oil-water separation performance according to the images and / or videos acquired by the image acquisition element.

[0018] In the above technical solution, the experimental device for testing oil-water separation performance comprises a test pipe segment, a drain pipe and a functional component installation assembly, the test pipe segment has a cavity, the cavity can be used for containing the first to-be-tested liquid, two opposite side walls of the test pipe segment have visualization windows, a user or an image acquisition device can acquire experimental phenomena in the cavity through the test windows, a bottom wall of the test pipe segment is provided with a drain port, the drain port is in communication with the drain pipe, and the liquid in the test pipe segment can be discharged to the outside after the test is completed, a top wall of the test pipe segment is provided with an injecting port which can be used for injecting the second to-be-tested liquid, the second to-be-tested liquid is an oil-containing liquid, and the second to-be-tested liquid is injected into the cavity from the injecting port and undergoes oil-water separation on the functional component. The first installation groove is provided in the bottom wall of the test pipe segment, the functional component installation assembly is detachably connected with the inner wall of the first installation groove and can be used for installing the functional component, and the functional component is a corrugated plate poly structure or a cylindrical poly structure. By using the experimental device, different functional components can be installed by detaching the functional component installation assembly, the versatility and flexibility of the experimental device are improved. In addition, the detachable connection mode facilitates the user to clean or replace the functional component after the experiment is completed, reduces the experimental cost and improves the experimental efficiency.

[0019] Other features and advantages of the present application will be described in detail in the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. Those skilled in the art can obtain other drawings based on the structures shown in these drawings without any inventive effort. In the drawings:

[0021] Figure 1 This is a schematic diagram of the experimental apparatus for testing oil-water separation performance according to an embodiment of the present invention;

[0022] Figure 2 A partial cross-sectional schematic diagram of an experimental apparatus for testing oil-water separation performance according to an embodiment of the present invention;

[0023] Figure 3 This is a front view schematic diagram of the functional component mounting assembly provided according to the first embodiment of the present invention;

[0024] Figure 4 This is a front view of a glass plate provided according to an embodiment of the present invention;

[0025] Figure 5 This is a flowchart of an experimental method for testing oil-water separation performance according to an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures

[0027] 10 Test Pipe Section

[0028] 11 First mounting slot

[0029] 12 Notes

[0030] 13 Mounting Frame

[0031] 14 Glass Plate

[0032] 20 Drain pipe

[0033] 30 Functional Component Installation Assembly

[0034] 31 First mounting plate

[0035] 32 First Card Connector

[0036] 40 diversion pipe section

[0037] 50 Circular Pipe Section

[0038] 60 support frame Detailed Implementation

[0039] The specific embodiments of the present application are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended for illustration and explanation of the present application, and are not intended to limit the present application.

[0040] The experimental device for testing the oil-water separation performance according to the present application is described below with reference to the accompanying drawings. As shown in Figure 1 FIG. 1, it is a structural schematic diagram of the experimental device for testing the oil-water separation performance according to an embodiment of the present application; as shown in Figure 2 FIG. 2, it is a partial sectional view of the experimental device for testing the oil-water separation performance according to an embodiment of the present application. The experimental device for testing the oil-water separation performance provided by the embodiment of the present application comprises:

[0041] a test pipe section 10, which is used for containing a first to-be-tested liquid and has a cavity inside, two opposite side walls of the test pipe section 10 have visualization windows (not shown in the figure), a bottom wall of the test pipe section 10 is provided with a drainage port and a first mounting groove 11, a top wall of the test pipe section 10 is provided with an injection port 12 for injecting a second to-be-tested liquid, and the second to-be-tested liquid is an oil-containing liquid;

[0042] a drainage pipe 20, which is in communication with the drainage port and is used for draining the first to-be-tested liquid and the second to-be-tested liquid after the experiment is completed;

[0043] a functional component mounting assembly 30, which is detachably connected with the inner wall of the first mounting groove 11 and is used for mounting a functional component (not shown in the figure), and the cavity is used for the oil-water separation of the second to-be-tested liquid and the first to-be-tested liquid on the functional component, wherein the functional component is a corrugated plate poly structure or a cylindrical poly structure.

[0044] In the prior art, when the oil-water separation performance of the functional component is tested, the functional component needs to be installed inside the test pipe section 10. When other structure forms of functional components need to be tested, a test pipe section 10 needs to be redesigned to meet the installation requirements of the new functional component, which greatly increases the cost and time of the experiment.

[0045] The experimental device for testing the oil-water separation performance of the application comprises a test pipe section 10, a drain pipe 20 and a functional component mounting assembly 30. The test pipe section 10 is used to contain the first liquid to be tested. The test pipe section 10 has a cavity inside, which provides a place for the oil-water separation process. The two opposite side walls of the test pipe section 10 are provided with visualization windows, which allows the user or image acquisition equipment to clearly observe the experimental phenomena in the cavity, thereby realizing intuitive monitoring of the oil-water separation process. The bottom wall of the test pipe section 10 is provided with a drain port and a first mounting groove 11. The drain port is connected with the drain pipe 20, which ensures that the liquid in the test pipe section 10 can be smoothly drained after the experiment. The first mounting groove 11 is designed to mount the functional component mounting assembly 30. The functional component mounting assembly 30 is detachably connected with the inner wall of the first mounting groove 11, which greatly improves the versatility and flexibility of the experimental device. By replacing different functional component mounting assemblies 30, different structural forms of functional components can be easily adapted, greatly reducing the cost and time of the experiment.

[0046] In addition, the top wall of the test pipe section 10 is also provided with an injection port 12, which allows the oil-containing liquid as the second liquid to be tested to be easily injected into the cavity and undergo oil-water separation on the functional component. This design not only simplifies the experimental steps, but also improves the efficiency and accuracy of the experiment.

[0047] The functional component is a corrugated plate poly structure or a cylindrical poly structure. The corrugated plate poly structure is a plate structure with a wave-shaped surface, which can effectively increase the contact area between oil and water, thereby improving the efficiency of oil-water separation. The cylindrical poly structure is a structure with multiple cylinders, which are made of 304 stainless steel. The multiple cylinders are arranged in a double-single alternating array between the two transparent windows to form the poly structure. In a specific embodiment, the corrugated plate is a plate with a corrugated cross-section, which is made of 304 stainless steel. Two corrugated plates are installed in parallel in the test pipe section 10 by four half-circular cross-section support rods made of 304 stainless steel. The through holes designed at the bending parts of the corrugated plates serve as "escape holes" for oil droplets in water, so as to prevent large oil droplets formed by coalescence from accumulating or breaking due to multiple collisions at the bending parts. Both of these functional components can be installed on the functional component mounting assembly 30 and can be selected and replaced according to experimental requirements to meet different experimental conditions and requirements.

[0048] In one specific embodiment, there are two functional component mounting assemblies 30, which are respectively disposed on the top and bottom walls of the reaction tube section. Both functional component mounting assemblies 30 can be detachably connected to the functional component, thereby further improving the flexibility and applicability of the experimental apparatus. In this way, researchers can install different functional components at different locations in the test tube section 10 according to specific experimental needs to study the oil-water separation performance under different conditions.

[0049] In one specific embodiment, the length, width, and height of the cavity inner wall are 300mm, 90mm, and 90mm, respectively.

[0050] In the first embodiment, such as Figure 3 The diagram shown is a front view of the functional component mounting assembly 30 provided according to a first embodiment of the present invention. The functional component mounting assembly 30 includes a first mounting plate 31 and a first snap-fit ​​portion 32. The bottom wall of the first mounting plate 31 abuts against the bottom wall of the test tube segment 10. The first snap-fit ​​portion 32 is located in the middle of the first mounting plate 31 and snaps into a first mounting groove 11. The first snap-fit ​​portion 32 is magnetically or adhesively connected to the bottom wall of the first mounting groove 11. The design of the first mounting plate 31 allows the functional component to be stably mounted on the bottom wall of the test tube segment 10, while the first snap-fit ​​portion 32 ensures a firm connection between the functional component mounting assembly 30 and the test tube segment 10. The magnetic connection or adhesive method is not only simple and easy to implement, but also ensures the reliability and sealing of the connection, preventing liquid leakage during the experiment. Furthermore, the snap-fit ​​design of the first snap-fit ​​portion 32 allows the functional component mounting assembly 30 to be easily disassembled and replaced, further improving the versatility and flexibility of the experimental device. In one specific embodiment, the first mounting groove 11 is a square groove, and the straight edge of the square groove is more likely to be seamlessly connected with the straight edge of the first snap-fit ​​part 32.

[0051] In the second embodiment, the first installation groove 11 penetrates the bottom wall of the test pipe section 10, a plurality of first installation holes are uniformly arranged along the edge of the first installation groove 11, and the functional component installation assembly 30 comprises a second installation plate, a second clamping part, and a plurality of first locking members. The bottom wall of the second installation plate abuts against the bottom wall of the test pipe section 10, a plurality of second installation holes are arranged on the second installation plate, and the plurality of first installation holes and the plurality of second installation holes correspond to each other in position. The second clamping part is located in the middle of the second installation plate, the second clamping part is clamped in the first installation groove 11, the number of first locking members is the same as that of first installation holes, and the first locking members are used to lock the installation plate and the bottom wall of the first installation groove 11. This design not only enhances the connection strength between the functional component installation assembly 30 and the test pipe section 10, but also improves the stability and reliability of installation. By locking the second installation plate and the bottom wall of the first installation groove 11 through the first locking members, the loosening or falling off of the functional component during the experiment can be effectively prevented, thereby ensuring the smooth progress of the experiment. In addition, the clamping design of the second clamping part also facilitates the disassembly and replacement of the functional component installation assembly 30, further improving the convenience and versatility of the experimental device. The first locking member can be selected as a bolt assembly, which comprises a first bolt and a nut. The first bolt can penetrate the second installation plate and the bottom wall of the test pipe section 10 from above in sequence, and the nut is used to lock the second installation plate and the bottom wall of the test pipe section 10 from below.

[0052] In one embodiment, an annular groove (not shown in the figure) is arranged on the outer periphery of each of the plurality of first installation holes, and the functional component installation assembly 30 further comprises a sealing member installed in the annular groove, which seals and isolates the cavity from the outside. Because the first installation groove 11 penetrates the bottom wall of the test pipe section 10, if there is a gap between the functional component installation assembly 30 and the bottom wall of the test pipe section 10, it will cause the liquid in the test pipe section 10 to leak out or foreign matter from the outside to enter the test pipe section 10, thereby affecting the accuracy of the oil-water separation experiment results. By arranging an annular groove on the outer periphery of each of the plurality of first installation holes and installing a sealing member in the annular groove, the gap between the functional component installation assembly 30 and the test pipe section 10 can be effectively sealed, preventing the liquid in the test pipe section 10 from leaking out or foreign matter from the outside from entering, thereby ensuring the accuracy and reliability of the experimental results. In addition, the design of the sealing member also improves the overall sealing performance of the experimental device, further enhancing the stability and reliability of the experiment.

[0053] In one embodiment, as shown in Figure 1 and Figure 2 , installation frame bodies 13 are arranged on both sides of the test pipe section 10, a second installation groove is arranged on the side of each installation frame body 13 away from the test pipe section 10, a visual window is arranged on the installation frame body 13, and a glass plate 14 corresponding to the closed visual window is detachably installed in the second installation groove. AsFigure 4 As shown in FIG. 1, a front view of the glass plate 14 is provided according to an embodiment of the present application. The design of the glass plate 14 not only facilitates the user to observe the experimental phenomena in the test tube section 10, but also ensures the sealing and safety of the experiment. The glass plate 14 is detachably installed on the installation frame 13 through the second installation slot, which not only facilitates the user to clean and replace the glass plate 14, but also enables the glass plate 14 to be detached after the experiment is completed, so as to thoroughly clean and maintain the inside of the test tube section 10. In addition, the presence of the glass plate 14 can effectively prevent liquid from splashing out or external impurities from entering the test tube section 10 during the experiment, thereby ensuring the accuracy and safety of the experiment. When installing the glass plate 14, the gap between the glass plate 14 and the installation frame 13 can be sealed by sealing glue or other sealing materials, further improving the sealing performance of the experimental device. Specifically, the material of the glass plate 14 can be tempered glass.

[0054] In one embodiment, the experimental device further comprises an annular pressing plate (not shown in the figure), an annular sealing member (not shown in the figure), and a plurality of second locking members (not shown in the figure). The glass plate 14 is located between the annular pressing plate and the installation frame 13, the annular sealing gasket is sealingly arranged between the glass plate 14 and the bottom wall of the second installation slot, and the plurality of second locking members are sequentially inserted into the installation frame 13 through the annular pressing plate, the glass plate 14 and the annular sealing gasket, respectively. The second locking members are used to lock the annular pressing plate, the glass plate 14, the annular sealing gasket and the installation frame 13. This design not only enhances the connection strength between the glass plate 14 and the installation frame 13, but also improves the sealing performance, effectively preventing the leakage of liquid or the entry of external impurities during the experiment. By tightly locking the annular pressing plate, the glass plate 14, the annular sealing gasket and the installation frame 13 through the plurality of second locking members, the stability and reliability of the experimental device are ensured. In addition, the design of the annular sealing gasket can also compensate for the small gap caused by manufacturing or installation errors, further improving the sealing performance of the experimental device.

[0055] In one embodiment, as shown in FIG. 1, the experimental device further comprises a plurality of first locking members (not shown in the figure). The plurality of first locking members are sequentially inserted into the installation frame 13 through the glass plate 14 and the first installation slot, respectively. The first locking members are used to lock the glass plate 14 and the installation frame 13. This design not only enhances the connection strength between the glass plate 14 and the installation frame 13, but also improves the sealing performance, effectively preventing the leakage of liquid or the entry of external impurities during the experiment. By tightly locking the glass plate 14 and the installation frame 13 through the plurality of first locking members, the stability and reliability of the experimental device are ensured. In addition, the design of the first locking members can also compensate for the small gap caused by manufacturing or installation errors, further improving the sealing performance of the experimental device. Figure 1 and Figure 2As shown, the experimental device further comprises two flow guide pipe sections 40 arranged at the two ends of the test pipe section 10 respectively, the inner cavities of the flow guide pipe sections 40 are in communication with the cavity, the flow guide pipe sections 40 are used for guiding the first liquid to be tested to flow in or out, the flow guide pipe sections 40 are arranged in a gradually expanding manner in the direction towards the test pipe section 10, and the sides of the two flow guide pipe sections 40 away from the test pipe section 10 are in communication with the annular pipe section 50. The flow guide pipe sections 40 with the gradually expanding pipeline can reduce the occurrence of turbulent flow, make the flow of the first liquid to be tested in the test pipe section 10 more stable, and thus improve the accuracy and reliability of the oil-water separation experiment. The design of the flow guide pipe sections 40 also facilitates the connection with external liquid supply equipment and liquid collection equipment, and simplifies the operation steps of the experiment. The design of the annular pipe section 50 can further reduce the resistance of the liquid during flow, and ensure the smooth progress of the experiment.

[0056] In one embodiment, the inlet end and the outlet end of the test pipe section 10 are both provided with flow rate adjusting valves (not shown in the figure), which are used to adjust the flow rate of the first liquid to be tested entering and flowing out of the test pipe section 10. By adjusting the opening degree of the flow rate adjusting valve, the flow rate of the first liquid to be tested in the test pipe section 10 can be controlled, so as to realize accurate control of the oil-water separation process.

[0057] In one embodiment, as shown in the figure, Figure 2 The experimental device for testing the oil-water separation performance further comprises two support frames 60 installed below the test pipe section 10 and used for supporting the test pipe section 10, one of the support frames 60 is provided with a through hole, and the drain pipe 20 passes through the through hole and abuts against the inner wall of the through hole. The support frames 60 can make the test pipe section 10 at a certain height, which is convenient for users to observe and operate. At the same time, the design of the support frames 60 also takes into account the layout of the drain pipe 20, one of the support frames 60 is provided with a through hole, so that the drain pipe 20 can smoothly pass through and abut against the inner wall of the through hole. This design not only ensures the stability and firmness of the drain pipe 20, but also avoids unnecessary interference or influence of the drain pipe 20 on the test pipe section 10 during the experiment. In addition, the number and position of the support frames 60 can be adjusted according to the overall layout of the experimental device and the user's demand, so as to meet different experimental conditions and requirements.

[0058] In one embodiment, an experimental system for testing oil-water separation performance is provided, which comprises the experimental device for testing oil-water separation performance, an illuminating member (not shown in the figure), an image acquisition member (not shown in the figure), and an injection member (not shown in the figure). The illuminating member is arranged towards the visualization window, the image acquisition member is arranged towards the visualization window and is used to acquire images and / or videos of the oil-water separation process in the test pipe segment 10, and the injection member is in communication with the injection port 12 and is used to inject the second to-be-tested liquid into the cavity. The illuminating member can provide sufficient light so that the experimental phenomena in the visualization window are clearly visible. The image acquisition member, such as a camera or a video recorder, can capture and record the dynamic process of the oil-water separation in the test pipe segment 10 in real time, thereby providing intuitive experimental data for the experimental personnel. The injection member, such as a syringe, can accurately control the injection amount and injection speed of the second to-be-tested liquid, thereby ensuring the accuracy and repeatability of the experiment. The design of such an experimental system not only improves the efficiency and accuracy of the experiment, but also provides more convenient and comprehensive experimental means for the experimental personnel, which is helpful to promote the further development and application of the oil-water separation technology.

[0059] In one embodiment, an experimental method for testing oil-water separation performance is provided, which comprises the following steps: Figure 5 As shown in FIG. 10, a flowchart of the experimental method for testing oil-water separation performance according to an embodiment of the present application is shown. The experimental method is applied to the experimental system for testing oil-water separation performance described above, and the experimental method for testing oil-water separation performance comprises the following steps:

[0060] S101, heating the first to-be-tested liquid and the second to-be-tested liquid to a preset temperature, respectively;

[0061] S102, installing the functional member in the cavity of the test pipe segment 10;

[0062] S103, introducing the heated first to-be-tested liquid into the cavity from the inlet end of the test pipe segment 10 until the liquid level of the first to-be-tested liquid reaches a preset liquid level;

[0063] S104, controlling the outlet end of the test pipe segment 10 to be opened;

[0064] S105, adjusting the flow rate of the first to-be-tested liquid at the inlet end and the outlet end of the test pipe segment 10 so that the fluctuation amplitude of the liquid level of the first to-be-tested liquid is lower than a preset range;

[0065] S106, starting the illuminating member and the image acquisition member;

[0066] S107, injecting a preset amount of the second to-be-tested liquid into the cavity;

[0067] S108, determining the influence of the functional member on the oil-water separation performance according to the images and / or videos acquired by the image acquisition member.

[0068] In the oil-water separation performance experiment, the first and second liquids to be tested are first heated to a preset temperature. The preset temperature is adjusted based on the physical properties of the first and / or second liquids to be tested. For example, when the second liquid to be tested is thick oil, the temperature of the first and second liquids to be tested needs to be pre-processed considering the changes of the state and viscosity of the thick oil with respect to temperature. That is, before the experiment starts, the first and second liquids to be tested are heated to about 60°C respectively, so that the thick oil remains in a liquid state and has a suitable viscosity for the experiment. Then, the functional component is installed in the cavity of the test pipe section 10, and the functional component is detachably connected to the functional component mounting assembly 30. In addition, if the installation of the functional component does not rely on the functional component mounting plate, the functional component can be installed by other means, for example, the cylindrical aggregation component can be attached between the two opposite visualization windows. Then, the heated first liquid to be tested is introduced into the cavity of the test pipe section 10 until the liquid level of the first liquid to be tested reaches a preset level. After the first liquid to be tested reaches the preset level, the flow rate of the first liquid to be tested in the test pipe section 10 can be controlled by adjusting the flow rate regulating valves at the inlet and outlet ends of the test pipe section 10, to ensure that the fluctuation range of the liquid level is lower than the preset range, so as to ensure the accuracy and stability of the experiment. When the liquid level of the first liquid to be tested is stable, the illuminating member is started to provide sufficient light for the visualization window, so that the experimental phenomena are clearly visible. At the same time, the image acquisition member is started to capture and record the dynamic process of oil-water separation in the test pipe section 10 in real time. Then, a preset amount of the second liquid to be tested is injected into the cavity through the injection member, and the oil-water separation occurs between the first and second liquids to be tested on the functional component. During the experiment, the opening of the flow rate regulating valve can be adjusted as needed to further control the oil-water separation process. Finally, based on the images and videos collected by the image acquisition member, the influence of the functional component on the oil-water separation performance is analyzed and determined, so as to evaluate the oil-water separation efficiency and capacity of different functional components. This experimental method not only is simple to operate, but also can provide intuitive experimental data, which provides strong support for the research and application of oil-water separation technology.

[0069] In the description of the present application, it should be understood that the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0070] In this application, unless otherwise clearly indicated, the terms "mounting", "connection", "connecting", "fixed", "fixedly connected" and the like should be understood in the broadest sense as intended by the inventors, such as it can be fixedly connected, detachably connected, or integral; it can be mechanical connection, or electrical connection, or communication with each other; it can be direct connection, or indirect connection via an intermediate medium; it can be internal communication of two elements, or the interaction between two elements, unless otherwise clearly indicated. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0071] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0072] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An experimental apparatus for testing oil-water separation performance, characterized in that, include: Test tube section (10), the test tube section (10) is used to hold the first test liquid and has an internal cavity, the two opposite side walls of the test tube section (10) have visualization windows, the bottom wall of the test tube section (10) has a drain outlet and a first mounting groove (11), the top wall of the test tube section (10) has an injection port (12) for injecting the second test liquid, the second test liquid is an oil-containing liquid; A drain pipe (20) is connected to the drain outlet and is used to discharge the first test liquid and the second test liquid after the experiment is completed; The functional component mounting assembly (30) is detachably connected to the inner wall of the first mounting groove (11) and is used to mount the functional component. The cavity is used for the second test liquid and the first test liquid to undergo oil-water separation on the functional component. The functional component is a corrugated plate polymer structure or a cylindrical polymer structure. The functional component mounting assembly (30) includes a first mounting plate (31) and a first snap-fit ​​part (32). The bottom wall of the first mounting plate (31) abuts against the bottom wall of the test tube section (10). The first snap-fit ​​part (32) is located in the middle of the first mounting plate (31) and snaps into the first mounting groove (11). The first snap-fit ​​part (32) is magnetically connected or bonded to the bottom wall of the first mounting groove (11); or, The functional component mounting assembly (30) includes a second mounting plate, a second snap-fit ​​part, and a plurality of first locking members. The first mounting groove (11) penetrates the bottom wall of the test tube section (10). A plurality of first mounting holes are evenly provided along the edge of the first mounting groove (11). The bottom wall of the second mounting plate abuts against the bottom wall of the test tube section (10). A plurality of second mounting holes are provided on the second mounting plate. The positions of the plurality of first mounting holes and the plurality of second mounting holes correspond one-to-one. The second snap-fit ​​part is located in the middle of the second mounting plate and snaps into the first mounting groove (11). The number of first locking members is the same as the number of first mounting holes. The first locking members are used to lock the mounting plate to the bottom wall of the first mounting groove (11).

2. The experimental apparatus for testing oil-water separation performance according to claim 1, characterized in that, The outer periphery of each of the plurality of first mounting holes is provided with annular grooves, and the functional component mounting assembly (30) further includes: A sealing element is installed in the annular groove, which seals and isolates the cavity from the outside.

3. The experimental apparatus for testing oil-water separation performance according to claim 1, characterized in that, The test tube section (10) is provided with mounting frames (13) on both sides. Each mounting frame has a second mounting slot on the side away from the test tube section (10). The visualization window is opened on the mounting frame (13). A glass plate (14) corresponding to the visualization window can be detachably installed in the second mounting slot.

4. The experimental apparatus for testing oil-water separation performance according to claim 3, characterized in that, The experimental setup also includes: An annular pressure plate, wherein the glass plate (14) is located between the annular pressure plate and the mounting frame (13); An annular sealing gasket is provided between the glass plate (14) and the bottom wall of the second mounting groove; Multiple second locking components pass through the annular pressure plate, the glass plate (14), and the annular sealing gasket in sequence and are inserted into the mounting frame (13). The second locking components are used to lock the annular pressure plate, the glass plate (14), the annular sealing gasket, and the mounting frame (13).

5. The experimental apparatus for testing oil-water separation performance according to any one of claims 1 to 4, characterized in that, The experimental setup also includes: Two flow guide tube sections (40) are respectively disposed at both ends of the test tube section (10). The inner cavity of the flow guide tube section (40) is connected to the cavity. The flow guide tube section (40) is used to introduce or export the first test liquid. The flow guide tube section (40) is gradually widened in the direction towards the test tube section (10). The side of the two flow guide tube sections (40) away from the test tube section (10) is connected to the annular tube section (50).

6. The experimental apparatus for testing oil-water separation performance according to any one of claims 1 to 4, characterized in that, The experimental apparatus for testing oil-water separation performance also includes: Two support frames (60) are installed below the test pipe section (10) and are used to support the test pipe section (10). One of the support frames (60) has a through hole, through which the drain pipe (20) passes and abuts against the inner wall of the through hole.

7. An experimental system for testing oil-water separation performance, characterized in that, include: The experimental apparatus for testing oil-water separation performance as described in any one of claims 1 to 6; The lighting element is positioned facing the visualization window; An image acquisition device is positioned toward the visualization window and used to acquire images and / or videos of the oil-water separation process within the test pipe section (10); An injection device, wherein the injection port of the injection device is connected to the injection port (12) and is used to inject a second test liquid into the cavity.

8. An experimental method for testing oil-water separation performance, characterized in that, The experimental system for testing oil-water separation performance as described in claim 7, wherein the experimental method for testing oil-water separation performance includes the following steps: The first and second test liquids are heated to preset temperatures, respectively. The functional component is installed in the cavity of the test tube section (10); The heated first test liquid is introduced into the cavity from the inlet end of the test tube section (10) until the liquid level of the first test liquid reaches the preset liquid level. Open the outlet end of the test tube section (10); Adjust the flow rate of the first liquid to be tested at the inlet and outlet of the test tube section (10) so that the fluctuation range of the liquid level of the first liquid to be tested is lower than the preset range. Activate the lighting element and the image acquisition element; A preset amount of the second test liquid is injected into the cavity; The impact of the functional component on oil-water separation performance is determined based on the images and / or videos acquired by the image acquisition device.

Images