A dynamic test device for evaluating permeability of oil product scale inhibitor

Abstract

The present application relates to the technical field of scale inhibitor permeability, and particularly relates to a dynamic test device for evaluating the permeability of oil product scale inhibitor, which comprises a fixing frame, a fixing column is installed on the fixing frame, a liquid storage cylinder and an oil storage cylinder are respectively installed on the fixing column and the fixing frame, a rotating frame is rotatably installed on the fixing column, and a plurality of quick-mounting fixing assemblies are arranged on the rotating frame; the quick-mounting fixing assemblies are intermittently driven to rotate by the rotating frame, and the movement of the movable block and the guidance of the V-shaped groove and the guide column drive the placement plate to deflect forward and backward, so that the plurality of test tubes are sequentially matched with the liquid storage cylinder, the fan and the oil storage cylinder, and the in-pipe cleaning, residual liquid drying and dynamic test processing are simultaneously performed, the test tube replacement and the cleaning processing are simultaneously completed, the comparison test of the permeability of the oil product scale inhibitor under various conditions is efficiently realized, and the test efficiency is improved while the accuracy of the test result is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scale inhibitor permeability, in particular to a dynamic test device for evaluating the permeability of oil product scale inhibitor. BACKGROUND

[0002] During the storage, transportation and processing of oil products, due to changes in temperature, pressure, flow rate and other conditions, scaling phenomenon is easy to occur, which not only affects the heat exchange efficiency of the equipment, but also may cause pipeline blockage and safety accidents. As an effective anti-scaling means, scale inhibitors can significantly alleviate the scaling problem by changing the crystalline form of the scaling material or inhibiting its deposition. However, there are many types of scale inhibitors on the market with large performance differences. Therefore, how to scientifically evaluate the permeability of scale inhibitors has become a key issue in the research and application of scale inhibitors.

[0003] For example, a dynamic experimental device and method for evaluating the performance of scale inhibitors in oil fields, with publication number CN114112852A, can simulate different temperatures, pressures, flow rates and different flow states. Although it can test the scaling and anti-scaling in different material pipelines and quantitatively describe the anti-scaling performance of the scale inhibitor through conductivity characteristics, it lacks a corresponding pipeline cleaning structure. Therefore, when multiple experiments are performed under different temperatures, pressures, flow rates and flow states, the scaling interference items generated on the inner wall of the pipeline cannot be removed, which is not conducive to achieving the accuracy of experimental results under different conditions. Only by repeatedly replacing the pipeline for experiments can the overall experimental efficiency be reduced. SUMMARY

[0004] The present application aims to provide a dynamic test device for evaluating the permeability of oil product scale inhibitors to solve the technical defects mentioned above.

[0005] The purpose of the present application can be achieved by the following technical solution: a dynamic test device for evaluating the permeability of oil product scale inhibitors, comprising a fixed frame, a fixed column mounted on the fixed frame, and a liquid storage cylinder and an oil storage cylinder mounted on the fixed column and the fixed frame respectively, a rotating frame rotatably mounted on the fixed column, and a plurality of quick-mounting fixing assemblies provided on the rotating frame;

[0006] The quick-mounting fixing assembly comprises a placement plate, a test tube placed on the top of the placement plate, and a partition plate welded thereon, two symmetrical trapezoidal clamping blocks provided on the two sides of the partition plate, springs fixedly connected between the trapezoidal clamping blocks and the partition plate, guide rods fixedly connected to the bottom of the trapezoidal clamping blocks, a push plate slidably connected inside the placement plate, elastic blocks fixedly connected to the push plate, and guide grooves slidably connected to the guide rods.

[0007] Preferably, the bottom of the placing plate is fixedly connected with a rotating rod, a movable block in sliding connection with the rotating frame is rotatably connected to the rotating rod, an electric push rod is fixedly connected between the movable block and the rotating frame, the bottom of the rotating rod is fixedly connected with a disc, and an guide column is eccentrically installed at the bottom of the disc.

[0008] Preferably, a V-shaped groove in sliding connection with the guide column is formed in the rotating frame, straight grooves are symmetrically formed at the two sides of the V-shaped groove, a gear ring is installed at the bottom of the rotating frame, a servo motor is installed on the fixed column through bolts, and a gear in meshing connection with the gear ring is installed on the output shaft of the servo motor.

[0009] Preferably, a liquid collecting box is fixedly installed at the bottom of one side of the liquid storage cylinder, a liquid outlet pipe and a liquid return pipe are fixedly connected above the liquid collecting box, abutting sleeve heads are installed at the ends of the liquid outlet pipe and the liquid return pipe, a cleaning pump is installed on the liquid outlet pipe, and a one-way valve is installed on the liquid return pipe.

[0010] Preferably, an oil collecting box is fixedly installed at the bottom of one side of the oil storage cylinder, an oil outlet pipe and an oil return pipe are fixedly installed above the oil collecting box, abutting sleeve heads are installed at the ends of the oil outlet pipe and the oil return pipe located outside the oil storage cylinder, and a high-pressure oil pump is installed on the oil outlet pipe.

[0011] Preferably, one end of the oil outlet pipe is fixedly connected with the oil return pipe, an electromagnetic control valve is fixedly connected to the free end of the oil return pipe, an electromagnetic three-way valve and a pressure sensor are respectively installed on the oil outlet pipe and the oil return pipe, and a heating rod is installed at the bottom in the oil storage cylinder.

[0012] Preferably, a fan is installed on the side of the fixed frame away from the oil storage cylinder, and abutting sleeve heads are installed on the air outlet pipe of the fan.

[0013] Preferably, ultrasonic sensors are installed on the outer side wall of the test pipe at each corner, and a control panel is installed on the fixed frame.

[0014] The present application has the following advantages:

[0015] (1) The present application can intermittently drive multiple quick-mounting type fixed components to rotate through the rotating frame, drive the placing plate to deflect forward and backward through the movement of the movable block and the guidance of the V-shaped groove and the guide column, and make the multiple test pipes sequentially cooperate with the liquid storage cylinder, the fan and the oil storage cylinder to simultaneously perform in-pipe cleaning, residual liquid drying and dynamic test processing, so that the test pipe replacement and cleaning processing can be completed at the same time, the penetration performance of oil product scale inhibitors under multiple conditions can be efficiently compared and tested, the test efficiency can be improved, and the accuracy of test results can be ensured.

[0016] (2) The test tube is placed and fixed, only the end of the test tube is placed on the side of the elastic block away from the placement plate, and the test tube is elastically clamped through the two groups of trapezoidal clamping blocks, the placement and disassembly of the test are quickly realized, the movement of the movable block carrying the placement plate is utilized, the end of the test tube is first brought into contact with the corresponding abutting sleeve head, then the elastic block contacts the liquid storage cylinder or the oil storage cylinder, the movable plate is moved, the trapezoidal clamping blocks are separated to stably clamp the test tube, the sealing property of the test tube after connection is improved, and the test tube is conveniently installed in a quick disassembly mode, the sealing in the dynamic test and the cleaning process is improved, and the accuracy of the test result is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The application will be further described below with reference to the drawings;

[0018] Figure 1 is a structural schematic view of the application;

[0019] Figure 2 is a cooperation schematic view of the liquid storage cylinder and the quick-mounting type fixing assembly of the application;

[0020] Figure 3 is a structural schematic view of the liquid storage cylinder of the application;

[0021] Figure 4 is a structural schematic view of the oil storage cylinder of the application;

[0022] Figure 5 is a split schematic view of the rotating frame and the quick-mounting type fixing assembly of the application;

[0023] Figure 6 is a structural schematic view of the quick-mounting type fixing assembly of the application;

[0024] Figure 7 is an installation schematic view of the trapezoidal clamping plate of the application;

[0025] Figure 8 is a split schematic view of the placement plate and the movable plate of the application;

[0026] Figure 9 is an installation schematic view of the fan of the application.

[0027] LEGEND:

[0028] 1, fixed frame; 11, fixed column; 12, rotating frame; 13, V-shaped groove; 14, straight groove; 15, fan; 16, abutting sleeve head three;

[0029] 2, liquid storage cylinder; 21, liquid collecting box; 22, liquid outlet pipe; 23, liquid return pipe; 24, abutting sleeve head one; 25, cleaning pump;

[0030] 3, oil storage cylinder; 31, oil collection box; 32, oil outlet pipe; 33, oil return pipe; 34, abutting sleeve head two; 35, high-pressure oil pump;

[0031] 4, quick-mounting fixing assembly; 41, placement plate; 42, test tube; 43, partition plate; 44, trapezoidal clamping block; 45, spring; 46, guide rod; 47, push plate; 48, guide groove; 49, elastic block; 410, rotating rod; 411, movable block; 412, electric push rod; 413, guide column. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Embodiment one: please refer to Figures 1-7 and Figure 9 As shown in the figure, in order to solve the problem that in the prior art, the pipeline cannot be cleaned before multiple experiments are carried out at different temperatures, pressures, flow rates and flow states, and multiple pipelines need to be replaced for experiments, reducing the overall experimental efficiency, the following scheme can be used to solve the problem;

[0034] The dynamic test device for evaluating the permeability of an oil product scale inhibitor in the embodiment includes a fixing frame 1, a fixing column 11 is installed on the fixing frame 1, the fixing column 11 is used for the rotational installation of a rotating frame 12, so that the quick-mounting fixing assembly 4 rotates to change positions, and multiple test tubes 42 are synchronously cleaned, residual liquid is dried, and dynamic test processing is performed. The test tube 42 replacement can be quickly completed while the cleaning processing is completed, so as to efficiently realize the comparative test of the permeability of the oil product scale inhibitor under multiple conditions, improve the test efficiency, and ensure the accuracy of the test results.

[0035] The fixing column 11 and the fixing frame 1 are respectively provided with a liquid storage cylinder 2 and an oil storage cylinder 3. The liquid storage cylinder 2 is used for storing a chemical cleaning liquid, and the oil storage cylinder 3 is used for storing an oil product containing a scale inhibitor. The fixing column 11 is rotatably installed with the rotating frame 12, and the rotating frame 12 is provided with multiple quick-mounting fixing assemblies 4.

[0036] The quick-assembly fixing assembly 4 comprises a placing plate 41, and a test tube 42 is placed on the top of the placing plate 41, the test tube 42 is arranged in a curved manner, liquid flows relatively smoothly in a straight tube section, the flow velocity distribution is relatively uniform, and the turbulence degree is relatively low, while in a curved section, the curved side wall changes the flow direction, flow channel shape or flow area of the liquid, so that the flow velocity of the liquid is reduced, the turbulence is enhanced, the relatively stable dissolution balance state of substances in the liquid is destroyed, the scale in the auxiliary liquid is generated, and the effect of simulating the influence of the scale in the oil containing the scale inhibitor in the actual pipeline bending is simulated;

[0037] and a partition plate 43 is welded, the two sides of the partition plate 43 are symmetrically provided with trapezoidal clamping blocks 44, the inclined surfaces of the trapezoidal clamping blocks 44 are arranged away from each other, springs 45 are fixedly connected between the trapezoidal clamping blocks 44 and the partition plate 43, the test tube 42 is placed on the placing plate 41 on one side of the liquid storage cylinder 2, when the test tube 42 is placed, the two groups of trapezoidal clamping blocks 44 are pushed to move relatively, and the trapezoidal clamping blocks 44 are loosened after the test tube 42 is placed;

[0038] under the compression elastic force of the springs 45, the trapezoidal clamping blocks 44 are reset to preliminarily clamp the test tube 42 in combination with the two sides of the placing plate 41, the bottom of the trapezoidal clamping block 44 is fixedly connected with a guide rod 46, the inside of the placing plate 41 is slidably connected with a pushing plate 47, the pushing plate 47 is fixedly connected with an elastic block 49, and a guide groove 48 slidably connected with the guide rod 46 is formed in the pushing plate 47.

[0039] The bottom of the placing plate 41 is fixedly connected with a rotating rod 410, the rotating rod 410 is rotatably connected with a movable block 411 slidably connected with the rotating frame 12, the rotating rod 410 is used to drive the placing plate 41 to rotate, so that the port of the test tube 42 is changed to communicate with the liquid storage cylinder 2, the fan 15 and the oil storage cylinder 3, the movable block 411 and the rotating frame 12 are fixedly connected with an electric push rod 412 used to push the movable block 411 to move linearly, the bottom of the rotating rod 410 is fixedly connected with a disc, and the bottom of the disc is eccentrically installed with a guide column 413.

[0040] The rotating frame 12 is provided with a V-shaped groove 13 slidably connected with the guide column 413, and straight grooves 14 are symmetrically formed on the two sides of the V-shaped groove 13, the electric push rod 412 drives the corresponding movable block 411 to move away from or close to the liquid storage cylinder 2, the guide column 413 first moves in one of the straight grooves 14 and then enters the V-shaped groove 13, the guide column 413 is guided by the V-shaped groove 13, so that the rotating rod 410 carries the placing plate 41 to overturn by 180°, so that the end of the test tube 42 is changed, and then the movable block 411 is moved, so that the two ends of the test tube 42 respectively abut against the corresponding abutting sleeve heads to complete the sealing connection;

[0041] The bottom of the rotating frame 12 is provided with a gear ring, the fixed column 11 is provided with a servo motor through bolts, and the output shaft of the servo motor is provided with a gear ring engaged with the gear ring. The servo motor combines the engagement of the gear and the gear ring, drives the rotating frame 12 to deflect 90° intermittently, and promotes the cooperation of the plurality of test tubes 42 with the liquid storage cylinder 2, the fan 15 and the oil storage cylinder 3 in turn.

[0042] The bottom of the liquid storage cylinder 2 is fixedly provided with a liquid collecting box 21, which is used for collecting the washing liquid in the test tube 42 after washing and separation, and the liquid outlet pipe 22 and the liquid return pipe 23 are fixedly connected above the liquid collecting box 21, and the end of the liquid outlet pipe 22 and the liquid return pipe 23 is provided with an abutting sleeve head 24, the liquid outlet pipe 22 is provided with a washing pump 25, and the liquid return pipe 23 is provided with a one-way valve;

[0043] The liquid outlet pipe 22 is provided with a control valve one, and the one-way valve and the control valve one are used to prevent the washing liquid in the liquid storage cylinder 2 from flowing out after the test tube 42 is separated from the liquid return pipe 23 and the liquid outlet pipe 22, and the test tube 42 is sealed and connected by abutting the abutting sleeve head 24 at the end, the washing pump 25 extracts the washing liquid in the liquid storage cylinder 2 through the liquid outlet pipe 22 and injects it into the test tube 42, and then flows back to the liquid storage cylinder 2 through the liquid return pipe 23 to flush the inside of the test tube 42.

[0044] The bottom of the oil storage cylinder 3 is fixedly provided with an oil collecting box 31, which is used for collecting the oil in the test tube 42 after dynamic test separation, and the oil outlet pipe 32 and the oil return pipe 33 are fixedly installed above the oil collecting box 31, and the end of the oil outlet pipe 32 and the oil return pipe 33 outside the oil storage cylinder 3 is provided with an abutting sleeve head 34, and the oil outlet pipe 32 is provided with a high-pressure oil pump 35, and the two ends of the test tube 42 are respectively abutted with the corresponding abutting sleeve head 34, and the high-pressure oil pump 35 extracts the oil containing scale inhibitor in the oil storage cylinder 3 through the oil outlet pipe 32 and injects it into the test tube 42, and then flows back to the oil storage cylinder 3 through the oil return pipe 33, so that the oil containing scale inhibitor flows in the test tube 42 to conduct dynamic test.

[0045] One end of the oil outlet pipe 32 is fixedly connected with the oil return pipe 33, the free end of the oil return pipe 33 is fixedly connected with an electromagnetic control valve, the oil outlet pipe 32 and the oil return pipe 33 are respectively provided with an electromagnetic three-way valve and a pressure sensor, the high-pressure oil pump 35 extracts the oil containing scale inhibitor in the oil storage cylinder 3 through the electromagnetic three-way valve and the oil outlet pipe 32 and injects it into the test tube 42, and combines the opening of the electromagnetic control valve, flows back to the oil storage cylinder 3 through the oil return pipe 33, and the oil outlet pipe 32 is provided with a control valve two;

[0046] The bottom of the oil storage cylinder 3 is provided with a heating rod, which is used for heating the oil containing the scale inhibitor to simulate the temperature in the oil flow process. The opening size of the electromagnetic control valve is controlled by the controller in the control panel, so that the hydraulic pressure in the test tube 42 is increased, and the oil pressure in the test tube 42 is collected by the pressure sensor.

[0047] The collected oil pressure data is transmitted to the controller, and the controller compares the collected oil pressure data with the set oil pressure data range. When the collected oil pressure data is within the set oil pressure data range, a control signal is generated to control the electromagnetic control valve to close, and the valve core in the electromagnetic three-way valve is rotated to make the oil outlet pipe 32 communicate with the oil return pipe 33, so as to simulate the oil pressure in the oil flow process and promote the oil flow in the test tube 42 for dynamic test.

[0048] The fan 15 is installed on the side of the fixed frame 1 away from the oil storage cylinder 3, and the abutting sleeve head three 16 is installed on the outlet pipe of the fan 15. When the test tube 42 is placed and washed, one end of the washed test tube 42 contacts the abutting sleeve head three 16, and the fan 15 injects high-temperature airflow into the washed test tube 42 for drying treatment.

[0049] The ultrasonic sensors are installed on the outer wall of the test tube 42 and located at each corner. The control panel is installed on the fixed frame 1. The data of the scale thickness on the inner wall of each corner of the test tube 42 is collected by the ultrasonic sensors, and the scale thickness data is transmitted to the controller. The controller sends the scale thickness data to the external electrically connected display for display.

[0050] Embodiment two: please refer to Figures 5-8 The stable sealing type convenient disassembly problem of the test tube can be solved by the following scheme.

[0051] The quick mounting type fixing assembly 4 in this embodiment includes a placement plate 41, and the top of the placement plate 41 is placed with a test tube 42, and a partition plate 43 is welded. The two sides of the partition plate 43 are symmetrically provided with trapezoidal clamping blocks 44, the trapezoidal clamping blocks 44 and the partition plate 43 are fixedly connected with springs 45, the bottom of the trapezoidal clamping block 44 is fixedly connected with a guide rod 46, the inside of the placement plate 41 is slidably connected with a pushing plate 47, the pushing plate 47 is fixedly connected with an elastic block 49, and a guide groove 48 slidably connected with the guide rod 46 is formed in the pushing plate 47.

[0052] When the test tube 42 is placed, only the end of the test tube 42 is located between the elastic block 49 and the liquid storage cylinder 2, and the test tube 42 is quickly clamped by the trapezoidal clamping block 44, so that the test tube 42 is quickly disassembled and installed. By moving the movable block 411, the end of the test tube 42 is first abutted against the corresponding abutting sleeve head, and then the elastic block 49 is abutted against the liquid storage cylinder 2 or the oil storage cylinder 3 to deform, and the push plate 47 is pushed to slide in the placement plate 41;

[0053] With the guidance of the guide groove 48 to the guide rod 46, the two groups of trapezoidal clamping blocks 44 are moved away from each other, the test tube 42 is stably clamped, and the end of the test tube 42 is further abutted against the abutting sleeve head one 24 or the abutting sleeve head two 34 to be sealed and connected, the sealing in the dynamic test and cleaning process is improved, and the accuracy of the test result is further improved.

[0054] Embodiment three: please refer to Figures 1-9 As shown in the drawings, the application further provides a use method of the dynamic test device for evaluating the permeability of the oil product scale inhibitor, which comprises the following steps:

[0055] Step one: place the test tube 42 on the placement plate 41 on the side of the liquid storage cylinder 2 of the liquid collecting box 21, when placing, move the two groups of trapezoidal clamping blocks 44 relative to each other, place the test tube 42, and the end of the test tube 42 is located between the elastic block 49 and the liquid storage cylinder 2, release the trapezoidal clamping block 44, under the compression elastic force of the spring 45, reset the trapezoidal clamping block 44, and preliminarily clamp the test tube 42 on both sides of the placement plate 41, the electric push rod 412 drives the movable block 411 to move, so that the two ends of the test tube 42 are abutted against the corresponding abutting sleeve head one 24, the elastic block 49 is abutted against the liquid storage cylinder 2 to deform by continuously moving the movable block 411, the push plate 47 is pushed to slide in the placement plate 41, with the guidance of the guide groove 48 to the guide rod 46, the two groups of trapezoidal clamping blocks 44 are moved away from each other, the test tube 42 is stably clamped, and the end of the test tube 42 is further abutted against the abutting sleeve head one 24 to be sealed and connected;

[0056] Step two: the cleaning pump 25 draws the cleaning liquid in the liquid storage cylinder 2 through the liquid outlet pipe 22 and injects it into the test tube 42, and then flows back to the liquid storage cylinder 2 through the liquid return pipe 23 to flush the inside of the test tube 42. After flushing, the electric push rod 412 drives the corresponding movable block 411 away from the liquid storage cylinder 2, and the guide column 413 first moves in the straight slot 14 on one side and then enters the V-shaped groove 13. Under the guidance of the V-shaped groove 13, the rotating rod 410 carries the placement plate 41 to overturn 180°, so that the end of the test tube 42 changes direction, the pistons of the two groups of electric push rods 412 move synchronously and reversely, and after the test tube 42 is separated from the abutting sleeve head one 24, the cleaning liquid in the test tube 42 flows into the liquid collecting box 21. The servo motor drives the rotating frame 12 to deflect 90° by engaging with the gear ring, and at the same time, the one end of the cleaned test tube 42 contacts the abutting sleeve head three 16, and the fan 15 draws high-temperature gas into the inside of the cleaned test tube 42 for drying treatment;

[0057] Step three: continue to deflect the rotating frame 12 and the placement plate 41 until the cleaned and dried test tube 42 is rotated to between the liquid storage cylinder 2 and the oil storage cylinder 3. The oil containing the scale inhibitor is added into the oil storage cylinder 3 and heated by the heating rod to simulate the temperature in the oil flow process. The electric push rod 412 moves the end of the test tube 42 towards the oil storage cylinder 3. The two ends of the test tube 42 respectively abut against the corresponding abutting sleeve head two 34. The high-pressure oil pump 35 draws the oil containing the scale inhibitor in the oil storage cylinder 3 through the electromagnetic three-way valve and the oil outlet pipe 32 and injects it into the test tube 42. The electromagnetic control valve is opened to flow back to the oil storage cylinder 3 through the oil return pipe 33.

[0058] Step four: control the opening size of the electromagnetic control valve by the controller in the control panel to increase the hydraulic pressure in the test tube 42. The pressure sensor collects the oil pressure data flowing in the test tube 42, and the collected oil pressure data are transmitted to the controller. The controller compares the collected oil pressure data with the set oil pressure data range. When the collected oil pressure data are within the set oil pressure data range, a control signal is generated to control the electromagnetic control valve to close, and the valve core in the electromagnetic three-way valve is rotated to make the oil outlet pipe 32 and the oil return pipe 33 communicate. The oil pressure in the oil flow process is simulated to make the oil flow in the test tube 42 for dynamic test. The ultrasonic sensors collect the scale thickness data on the inner walls of the corners of the test tube 42, and the scale thickness data are transmitted to the controller. The controller sends the scale thickness data to the externally electrically connected display for display.

[0059] Step five: repeat the above operation to replace the next test tube 42, and clean the test tube 42 after testing, change the oil pressure data range or oil temperature on the premise of the same concentration of scale inhibitor to perform dynamic test again, and record the scale thickness data to test the penetration performance of scale inhibitor under different temperature or oil pressure;

[0060] On the premise of the same temperature and pressure, continue to add a certain amount of scale inhibitor to the oil product to perform dynamic test again, and record the scale thickness data to test the limit penetration performance of the least scale inhibitor in the oil product;

[0061] On the premise of the same temperature, pressure and concentration of scale inhibitor, replace the test tube 42 of different materials to perform dynamic test again, and record the scale thickness data to test the penetration performance of scale inhibitor in the pipeline of different materials.

[0062] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A dynamic test device for evaluating the penetration performance of an oil product scale inhibitor, comprising a fixing frame (1), characterized in that, The fixed column (11) is installed on the fixed frame (1), and the fixed column (11) and the fixed frame (1) are respectively provided with a liquid storage cylinder (2) and an oil storage cylinder (3), a rotating frame (12) is rotatably installed on the fixed column (11), and a plurality of quick-mounting fixing assemblies (4) are arranged on the rotating frame (12). The quick-mounting fixing assembly (4) comprises a placing plate (41), a test tube (42) is placed on the top of the placing plate (41), and a partition plate (43) is welded; trapezoidal clamping blocks (44) are symmetrically arranged on the two sides of the partition plate (43); springs (45) are fixedly connected between the trapezoidal clamping blocks (44) and the partition plate (43); guide rods (46) are fixedly connected to the bottoms of the trapezoidal clamping blocks (44); a pushing plate (47) is slidably connected in the placing plate (41); elastic blocks (49) are fixedly connected to the pushing plate (47); and guide grooves (48) slidably connected with the guide rods (46) are formed in the pushing plate (47). A rotating rod (410) is fixedly connected to the bottom of the placing plate (41), a movable block (411) slidably connected with the rotating frame (12) is rotatably connected to the rotating rod (410), an electric push rod (412) is fixedly connected between the movable block (411) and the rotating frame (12), and a disc is fixedly connected to the bottom of the rotating rod (410), and a guide column (413) is eccentrically installed on the bottom of the disc. A V-shaped groove (13) slidably connected with the guide column (413) is formed in the rotating frame (12), straight grooves (14) are symmetrically formed on the two sides of the V-shaped groove (13), a gear ring is installed on the bottom of the rotating frame (12), a servo motor is installed on the fixed column (11) through bolts, and a gear meshing with the gear ring is installed on the output shaft of the servo motor.

2. The dynamic test device for evaluating the permeability of an oil product scale inhibitor according to claim 1, characterized in that, A liquid collecting box (21) is fixedly installed on one side of the bottom of the liquid storage cylinder (2), and a liquid outlet pipe (22) and a liquid return pipe (23) are fixedly connected above the liquid collecting box (21); abutting sleeve heads (24) are installed on the ends of the liquid outlet pipe (22) and the liquid return pipe (23); a cleaning pump (25) is installed on the liquid outlet pipe (22), and a one-way valve is installed on the liquid return pipe (23).

3. The dynamic test device for evaluating the permeability of an oil product scale inhibitor according to claim 1, characterized in that, An oil collecting box (31) is fixedly installed on one side of the bottom of the oil storage cylinder (3), and an oil outlet pipe (32) and an oil return pipe (33) are fixedly installed above the oil collecting box (31); abutting sleeve heads (34) are installed on the ends of the oil outlet pipe (32) and the oil return pipe (33) outside the oil storage cylinder (3); and a high-pressure oil pump (35) is installed on the oil outlet pipe (32).

4. The dynamic test device for evaluating the permeability of an oil product scale inhibitor according to claim 3, characterized in that, One end of the oil outlet pipe (32) and the oil return pipe (33) are fixedly connected, an electromagnetic control valve is fixedly connected to the free end of the oil return pipe (33), electromagnetic three-way valves and pressure sensors are respectively installed on the oil outlet pipe (32) and the oil return pipe (33), and a heating rod is installed on the bottom of the oil storage cylinder (3).

5. The dynamic test device for evaluating the permeability of an oil product scale inhibitor according to claim 1, characterized in that, A fan (15) is installed on the side of the fixed frame (1) away from the oil storage cylinder (3), and abutting sleeve heads (16) are installed on the air outlet pipe of the fan (15).

6. The dynamic test device for evaluating the permeability of an oil product scale inhibitor according to claim 1, characterized in that, The ultrasonic sensors are installed on the outer side wall of the test tube (42) and at each corner, and the control panel is installed on the fixing frame (1).

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