Dynamic test device for evaluating permeability of oil scale inhibitor

Abstract

The invention relates to the technical field of permeability of scale inhibitors, in particular to a dynamic test device for evaluating permeability of an oil scale inhibitor, which comprises a fixing frame, a fixing column is mounted on the fixing frame, a liquid storage cylinder and an oil storage cylinder are mounted on the fixing column and the fixing frame respectively, and a rotating frame is rotatably mounted on the fixing column. A plurality of quick-mounting type fixing assemblies are arranged on the rotating frame; according to the invention, the rotating frame intermittently drives the plurality of fast-mounted fixing assemblies to rotate, and by means of the movement of the movable block and the guidance of the V-shaped groove and the guide column, the placement plate is driven to deflect forwards and backwards, so that the plurality of test tubes are sequentially matched with the liquid storage cylinder, the fan and the oil storage cylinder, and cleaning, residual liquid drying and dynamic test treatment in the tubes are synchronously carried out; the test tube can be quickly replaced and cleaned at the same time, so that the comparison test of the permeability of the oil scale inhibitor under various conditions can be efficiently realized, the test efficiency is improved, and the accuracy of a test result is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of scale inhibitor permeability, and particularly relates to a dynamic test device for evaluating the penetration performance of oil scale inhibitors. Background Art

[0002] During the storage, transportation, and processing of oil products, due to changes in conditions such as temperature, pressure, and flow rate, scaling is likely to occur. Scaling not only affects the heat exchange efficiency of equipment but also may cause pipeline blockages and lead to safety accidents. As an effective anti-scaling means, scale inhibitors can significantly alleviate the scaling problem by changing the crystal form of scaling substances or inhibiting their deposition. Currently, there are a wide variety of scale inhibitors on the market with large performance differences. How to scientifically evaluate their penetration performance has become the key to the research and development 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 the publication number CN114112852A can simulate different temperatures, pressures, flow rates, and different flow states on-site. Although it can test the scaling and anti-scaling conditions in pipelines of different materials and quantitatively describe the anti-scaling performance effect of scale inhibitors through conductivity characteristics, due to the lack of a corresponding pipeline cleaning structure, when conducting multiple experiments under different temperatures, pressures, flow rates, and flow states, it is impossible to remove the scaling interference items generated on the inner wall of the pipeline, 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 of the Invention

[0004] The purpose of the present invention is to provide a dynamic test device for evaluating the penetration performance of oil scale inhibitors to solve the above-mentioned technical defects.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A dynamic test device for evaluating the penetration performance of oil scale inhibitors includes a fixed frame. A fixed column is installed on the fixed frame, and a liquid storage cylinder and an oil storage cylinder are respectively installed on the fixed column and the fixed frame. A rotating frame is rotatably installed on the fixed column, and a plurality of quick-installation fixing components are arranged on the rotating frame. The quick-installation fixing component includes a placement plate, a test tube is placed on the top of the placement plate, and a partition is welded. Trapezoidal clamping blocks are symmetrically arranged on both sides of the partition. A spring is fixedly connected between the trapezoidal clamping block and the partition. A guiding rod is fixedly connected to the bottom of the trapezoidal clamping block. A pushing plate is slidably connected inside the placement plate. An elastic block is fixedly connected to the pushing plate, and a guiding groove for the guiding rod to slide is provided.

[0006] Preferably, a rotating rod is fixedly connected to the bottom of the placement plate, and a movable block rotatably connected to the rotating rod and slidably connected to the rotating frame is provided. An electric push rod is fixedly connected between the movable block and the rotating frame. A disc is fixedly connected to the bottom of the rotating rod, and a guiding post is eccentrically installed at the bottom of the disc.

[0007] Preferably, a V-shaped groove for sliding the guiding post is formed in the rotating frame, and linear grooves are symmetrically formed on both sides of the V-shaped groove. A toothed ring is installed at the bottom of the rotating frame. A servo motor is installed on the fixed column through bolts, and a gear meshing with the toothed ring is installed on the output shaft of the servo motor.

[0008] Preferably, a liquid collecting box is fixedly installed at the bottom of one side of the liquid storage cylinder, and a liquid outlet pipe and a liquid return pipe fixedly communicated above the liquid collecting box are provided. Abutted sleeve heads I 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.

[0009] Preferably, an oil collecting box is fixedly installed at the bottom of one side of the oil storage cylinder, and an oil outlet pipe and an oil return pipe fixedly installed above the oil collecting box are provided. Abutted sleeve heads II are installed at one ends of the oil outlet pipe and the oil return pipe located outside the oil storage cylinder. A high-pressure oil pump is installed on the oil outlet pipe.

[0010] Preferably, one end of the oil outlet pipe is fixedly communicated 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. A heating rod is installed at the bottom of the oil storage cylinder.

[0011] Preferably, a blower is installed on one side of the fixed frame away from the oil storage cylinder, and an abutted sleeve head III is installed on the air outlet pipe of the blower.

[0012] Preferably, ultrasonic sensors are installed on the outer side wall of the test tube at each corner, and a control panel is installed on the fixed frame.

[0013] The beneficial effects of the present invention are as follows: (1) In the present invention, the rotating frame intermittently drives a plurality of quick-installation fixing components to rotate, and with the movement of the movable block and the guidance of the V-shaped groove and the guiding post, the placement plate is driven to deflect forward and backward, so that a plurality of test tubes are successively matched with the liquid storage cylinder, the blower and the oil storage cylinder to synchronously perform in-tube cleaning, residual liquid drying and dynamic test processing. It can quickly complete the replacement of the test tube while completing the cleaning process, so as to efficiently realize the comparative test of the penetration performance of the oil scale inhibitor under various conditions, improve the test efficiency and ensure the accuracy of the test results; (2)When the present invention also places and fixes the test tube, it only needs to place the end of the test tube on the side of the elastic block away from the placement plate, and elastically clamp the test tube with two sets of trapezoidal clamping blocks, quickly realizing the placement and disassembly of the test. By using the movement of the movable block carrying the placement plate, first making the end of the test tube contact the corresponding abutting socket, and then contacting the liquid storage cylinder or the oil storage cylinder through the elastic block, promoting the movement of the push plate, assisting the trapezoidal clamping blocks to move away from each other and stably clamp the test tube, so as to improve the sealing performance after the connection of the test tube. Furthermore, it is convenient to achieve quick-disassembly installation of the test tube, improve the sealing during the dynamic test and cleaning process, and further improve the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present invention with reference to the drawings; Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic diagram of the cooperation between the liquid storage cylinder of the present invention and the quick-installation fixing component; Figure 3 is a schematic structural diagram of the liquid storage cylinder of the present invention; Figure 4 is a schematic structural diagram of the oil storage cylinder of the present invention; Figure 5 is a disassembled schematic diagram of the rotating frame and the quick-installation fixing component of the present invention; Figure 6 is a schematic structural diagram of the quick-installation fixing component of the present invention; Figure 7 is a schematic diagram of the installation of the trapezoidal clamping plate of the present invention; Figure 8 is a disassembled schematic diagram of the placement plate and the push plate of the present invention; Figure 9 is a schematic diagram of the installation of the fan of the present invention.

[0015] Legend: 1. Fixed frame; 11. Fixed column; 12. Rotating frame; 13. V-shaped groove; 14. Linear groove; 15. Fan; 16. Third abutting socket; 2. Liquid storage cylinder; 21. Liquid collecting box; 22. Liquid outlet pipe; 23. Liquid return pipe; 24. First abutting socket; 25. Cleaning pump; 3. Oil storage cylinder; 31. Oil collecting box; 32. Oil outlet pipe; 33. Oil return pipe; 34. Second abutting socket; 35. High-pressure oil pump; 4. Quick-installation fixing component; 41. Placement plate; 42. Test tube; 43. Partition; 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 OF THE INVENTION

[0016] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0017] Embodiment 1: Please refer to Figures 1-7 and Figure 9 As shown, for the problem in the prior art that the pipeline cannot be cleaned before multiple experiments are carried out under different temperatures, pressures, flow rates and flow patterns, resulting in repeated replacement of the pipeline for experiments, reducing the overall experimental efficiency, the following solutions can be adopted; In this embodiment, a dynamic test device for evaluating the penetration performance of an oil scale inhibitor 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 a quick-installation fixing component 4 rotates to change positions, and multiple test tubes 42 are synchronously cleaned, the residual liquid is dried, and dynamic test processing is carried out. It can quickly complete the replacement of the test tube 42 while completing the cleaning process, so as to efficiently compare and test the penetration performance of the oil scale inhibitor under various conditions, improve the test efficiency and ensure the accuracy of the test results at the same time; A liquid storage cylinder 2 and an oil storage cylinder 3 are respectively installed on the fixing column 11 and the fixing frame 1. The liquid storage cylinder 2 is used to store chemical cleaning liquid, and the oil storage cylinder 3 is used to store the oil containing the scale inhibitor. A rotating frame 12 is rotatably installed on the fixing column 11, and a plurality of quick-installation fixing components 4 are arranged on the rotating frame 12; The quick-installation fixing component 4 includes a placement plate 41, and a test tube 42 is placed on the top of the placement plate 41. The test tube 42 is bent. Since the flow of the liquid in the straight pipe section is relatively stable, the flow velocity distribution is relatively uniform, and the degree of turbulence is relatively low. While in the bent section, the bent side wall will change the flow direction, flow channel shape or flow area of the fluid, resulting in a decrease in the fluid flow velocity and an increase in turbulence at the same time. Furthermore, it will destroy the relatively stable dissolution equilibrium state of the substances in the fluid, assist in the formation of scale in the liquid, and simulate the effect of the actual pipeline bend on the formation of scale in the oil containing the scale inhibitor; And a partition 43 is welded. Trapezoidal clamping blocks 44 are symmetrically arranged on both sides of the partition 43. The inclined surfaces of the trapezoidal clamping blocks 44 face away from each other. A spring 45 is fixedly connected between the trapezoidal clamping blocks 44 and the partition 43. Place the test tube 42 on the placement plate 41 on the side of the liquid storage cylinder 2 where the liquid collection box 21 is located. When placing, push the two groups of trapezoidal clamping blocks 44 to move relative to each other, then place the test tube 42, and release the trapezoidal clamping blocks 44; Under the compressive elastic force of the spring 45, the trapezoidal clamping block 44 is urged to reset and initially clamp the test tube 42 on both sides of the placement plate 41. A guiding rod 46 is fixedly connected to the bottom of the trapezoidal clamping block 44. A pushing plate 47 is slidably connected inside the placement plate 41. An elastic block 49 is fixedly connected to the pushing plate 47, and a guiding groove 48 for sliding the guiding rod 46 is provided.

[0018] A rotating rod 410 is fixedly connected to the bottom of the placement plate 41, and a movable block 411 that is rotatably connected to the rotating rod 410 and slidably connected to the rotating frame 12 is provided. The rotating rod 410 is used to drive the placement plate 41 to rotate, realizing the change of the port orientation of the test tube 42, and further communicating with the liquid storage cylinder 2, the fan 15, and the oil storage cylinder 3. An electric push rod 412 is fixedly connected between the movable block 411 and the rotating frame 12, which is used to push the movable block 411 to perform linear reciprocating movement. A disc is fixedly connected to the bottom of the rotating rod 410, and a guiding column 413 is eccentrically installed at the bottom of the disc.

[0019] A V-shaped groove 13 for sliding the guiding column 413 is provided on the rotating frame 12, and linear grooves 14 are symmetrically provided on both 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 guiding column 413 first moves in one side linear groove 14, then enters the V-shaped groove 13. Through the guiding of the V-shaped groove 13 for the guiding column 413, the rotating rod 410 is caused to carry the placement plate 41 to flip 180°, resulting in the change of the end orientation of the test tube 42. Then, through the movement of the movable block 411, the two ends of the test tube 42 are respectively in contact with the corresponding abutting socket heads to complete the sealed connection. A toothed ring is installed at 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 toothed ring is installed on the output shaft of the servo motor. The servo motor, combined with the meshing of the gear and the toothed ring, drives the rotating frame 12 to intermittently deflect 90°, causing multiple test tubes 42 to cooperate with the liquid storage cylinder 2, the fan 15, and the oil storage cylinder 3 in sequence.

[0020] A liquid collection box 21 is fixedly installed at the bottom of one side of the liquid storage cylinder 2, which is used for discharging and collecting the cleaning liquid inside the test tube 42 after cleaning and separation. An outlet pipe 22 and a return pipe 23 are fixedly connected above the liquid collection box 21, and abutting socket heads one 24 are installed at the ends of both the outlet pipe 22 and the return pipe 23. A cleaning pump 25 is installed on the outlet pipe 22, and a one-way valve is installed on the return pipe 23. A control valve one is installed on the outlet pipe 22. The one-way valve and the control valve one are provided to prevent the cleaning liquid inside the liquid storage cylinder 2 from flowing out after the test tube 42 is separated from the return pipe 23 and the outlet pipe 22. After the end of the test tube 42 abuts against the abutting socket head one 24 for sealed connection, the cleaning pump 25 extracts the cleaning liquid in the liquid storage cylinder 2 through the outlet pipe 22 and injects it into the test tube 42, and then returns to the liquid storage cylinder 2 through the return pipe 23 to rinse the inside of the test tube 42.

[0021] On one side of the bottom of the oil storage cylinder 3, an oil collecting box 31 is fixedly installed, which is used for collecting the discharged oil inside after the dynamic test separation of the test pipe 42. And an oil outlet pipe 32 and a return pipe 33 are fixedly installed above the oil collecting box 31. At one end of the oil outlet pipe 32 and the return pipe 33 located outside the oil storage cylinder 3, a second abutting socket 34 is installed. A high-pressure oil pump 35 is installed on the oil outlet pipe 32. The two ends of the test pipe 42 are respectively abutted against the corresponding second abutting sockets 34. 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 pipe 42, and then returns to the oil storage cylinder 3 through the return pipe 33, causing the oil containing scale inhibitor to flow in the test pipe 42 to conduct a dynamic test.

[0022] One end of the oil outlet pipe 32 is fixedly communicated with the return pipe 33. The free end of the return pipe 33 is fixedly connected with an electromagnetic control valve. An electromagnetic three-way valve and a pressure sensor are respectively installed on the oil outlet pipe 32 and the return pipe 33. 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 pipe 42. When the electromagnetic control valve is opened, it returns to the oil storage cylinder 3 through the return pipe 33. A second control valve is installed on the oil outlet pipe 32; A heating rod is installed at the bottom inside the oil storage cylinder 3. The oil containing scale inhibitor is heated by the heating rod to simulate the temperature during the oil flow process. The opening size of the electromagnetic control valve is controlled by the controller in the control panel, causing the hydraulic value in the test pipe 42 to increase, and the pressure sensor collects data on the oil pressure flowing in the test pipe 42; The collected oil pressure data is obtained and 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 is within the set oil pressure data range, a control signal is generated to control the electromagnetic control valve to close, and to control the valve core in the electromagnetic three-way valve to rotate, so that the oil outlet pipe 32 communicates with the return pipe 33, simulating the oil pressure during the oil flow process, and promoting the oil to flow inside the test pipe 42 to conduct a dynamic test.

[0023] A blower 15 is installed on one side of the fixing frame 1 away from the oil storage cylinder 3. And a third abutting socket 16 is installed on the air outlet pipe of the blower 15. While the test pipe 42 is being placed and washed, one end of the washed test pipe 42 contacts the third abutting socket 16, and the blower 15 extracts high-temperature air flow and injects it into the washed test pipe 42 for drying treatment.

[0024] Ultrasonic sensors are installed on the outer side wall of the test pipe 42 at each corner. A control panel is installed on the fixing frame 1. The scale thickness on the inner walls of each corner of the test pipe 42 is collected through multiple ultrasonic sensors. The scale thickness data is obtained and transmitted to the controller, and the controller sends the scale thickness data to a display externally electrically connected for display.

[0025] Example Two: Please refer to Figures 5-8 As shown, for the problem of stable, sealed, convenient disassembly and assembly of the test tube, the following solution can be adopted; In this embodiment, the quick-installation fixing component 4 includes a placement plate 41, and a test tube 42 is placed on the top of the placement plate 41. A partition plate 43 is welded, and trapezoidal clamping blocks 44 are symmetrically arranged on both sides of the partition plate 43. A spring 45 is fixedly connected between the trapezoidal clamping block 44 and the partition plate 43. A guiding rod 46 is fixedly connected to the bottom of the trapezoidal clamping block 44. A pushing plate 47 is slidably connected inside the placement plate 41. An elastic block 49 is fixedly connected to the pushing plate 47, and a guiding groove 48 for the guiding rod 46 to slide is formed; When placing the test tube 42, only need to place the end of the test tube 42 in the area between the elastic block 49 and the liquid storage cylinder 2. Combine the trapezoidal clamping block 44 to perform quick clamping on the test tube 42, which is convenient for achieving a quick-disassembly installation effect on the test tube 42. By moving the movable block 411, first make the end of the test tube 42 contact the corresponding abutting socket, and then make the elastic block 49 deform by contacting the liquid storage cylinder 2 or the oil storage cylinder 3, and push the pushing plate 47 to slide inside the placement plate 41; With the guidance of the guiding groove 48 for the guiding rod 46, assist the two groups of trapezoidal clamping blocks 44 to move away from each other, stably clamp the test tube 42, and carry the end of the test tube 42 to further contact the abutting socket one 24 or the abutting socket two 34 for sealed connection, improving the sealing during the dynamic test and cleaning process, and further improving the accuracy of the test results.

[0026] Example Three: Please refer to Figures 1-9 As shown, the present invention also proposes a usage method of a dynamic test device for evaluating the penetration performance of an oil scale inhibitor, including the following steps: Step 1: Place the test tube 42 on the placement plate 41 on the side of the liquid storage cylinder 2 where the liquid collection box 21 is located. When placing, push the two groups of trapezoidal clamping blocks 44 to move relatively, then place the test tube 42, and the end of the test tube 42 is in the area between the elastic block 49 and the liquid storage cylinder 2. Loosen the trapezoidal clamping block 44. Under the compressive elastic force of the spring 45, make the trapezoidal clamping block 44 reset and initially clamp the test tube 42 in combination with 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 respectively contact the corresponding abutting socket one 24. By continuously driving the movable block 411 to move, the elastic block 49 deforms by contacting the liquid storage cylinder 2, and pushes the pushing plate 47 to slide inside the placement plate 41. With the guidance of the guiding groove 48 for the guiding rod 46, assist the two groups of trapezoidal clamping blocks 44 to move away from each other, stably clamp the test tube 42, and push the end of the test tube 42 to further contact the abutting socket one 24 for sealed connection; Step 2: The cleaning pump 25 extracts 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 rinse the inside of the test tube 42. After rinsing, the electric push rod 412 drives the corresponding movable block 411 away from the liquid storage cylinder 2. The guiding column 413 first moves in the linear groove 14 on one side, and then enters the V-shaped groove 13. Guided by the V-shaped groove 13, the rotating rod 410 drives the placement plate 41 to flip 180°, causing the end of the test tube 42 to change its orientation. After the piston rods of two adjacent electric push rods 412 move synchronously in the opposite direction and the test tube 42 separates from the abutting sleeve head 1 24, the cleaning liquid in the test tube 42 flows into the liquid collection box 21. The servo motor is started, and the rotation frame 12 is driven to deflect 90° by the engagement of the gear and the gear ring. While placing and rinsing the next test tube 42, one end of the rinsed test tube 42 contacts the abutting sleeve head 3 16, and the blower 15 extracts high-temperature air flow and injects it into the rinsed test tube 42 for drying treatment; Step 3: Continue to deflect the rotation frame 12 and the placement plate 41 until the rinsed and dried test tube 42 rotates between the liquid storage cylinder 2 and the oil storage cylinder 3. Add oil containing scale inhibitor to the oil storage cylinder 3 and heat it through the heating rod to simulate the temperature during the oil flow process. The electric push rod 412 is used to make the end of the test tube 42 face the oil storage cylinder 3 and move closer. The two ends of the test tube 42 respectively abut against the corresponding abutting sleeve head 2 34. 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. When the electromagnetic control valve is opened, it flows back to the oil storage cylinder 3 through the oil return pipe 33; Step 4: The controller in the control panel controls the opening size of the electromagnetic control valve, causing the hydraulic pressure value in the test tube 42 to increase. The pressure sensor collects data on the oil pressure flowing in the test tube 42, obtains the collected oil pressure data and transmits it to the controller. 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 spool in the electromagnetic three-way valve is controlled to rotate, making the oil outlet pipe 32 communicate with the oil return pipe 33, simulating the oil pressure during the oil flow process, and promoting the oil to flow inside the test tube 42 for a dynamic test. Multiple ultrasonic sensors collect data on the scale thickness on the inner walls of each corner of the test tube 42, obtain the scale thickness data and transmit it to the controller. The controller sends the scale thickness data to the externally electrically connected display for display; Step 5: Repeat the above operations to replace the next test tube 42, clean the tested test tube 42, and conduct a dynamic test again by changing the set oil pressure data range or the oil temperature on the premise of the same concentration of scale inhibitor, and record the scale thickness data to test the scale inhibitor penetration performance at different temperatures or oil pressures; On the premise of the same temperature and the same pressure, a dynamic test is carried out again by continuously adding a certain amount of scale inhibitor to the oil product, and the scale thickness data are recorded to test the ultimate penetration performance of the minimum amount of scale inhibitor in the oil product; On the premise of the same temperature, the same pressure and the same concentration of scale inhibitor, a dynamic test is carried out again by replacing the test tube 42 with different materials, and the scale thickness data are recorded to test the penetration performance of the scale inhibitor in pipelines with different materials.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A dynamic test device for evaluating the penetration performance of an oil scale inhibitor, comprising a fixing frame (1), characterized in that, A fixing column (11) is installed on the fixing frame (1), and a liquid storage cylinder (2) and an oil storage cylinder (3) are respectively installed on the fixing column (11) and the fixing frame (1). A rotating frame (12) is rotatably installed on the fixing column (11), and a plurality of quick-installation fixing components (4) are arranged on the rotating frame (12); The quick-installation fixing component (4) includes 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 both sides of the partition plate (43). A spring (45) is fixedly connected between the trapezoidal clamping block (44) and the partition plate (43). A guiding rod (46) is fixedly connected to the bottom of the trapezoidal clamping block (44). A pushing plate (47) is slidably connected inside the placing plate (41). An elastic block (49) is fixedly connected to the pushing plate (47), and a guiding groove (48) for the guiding rod (46) to slide is formed.

2. The dynamic test device for evaluating the penetration performance of an oil scale inhibitor according to claim 1, characterized in that, A rotating rod (410) is fixedly connected to the bottom of the placing plate (41), and a movable block (411) rotatably connected to the rotating rod (410) and slidably connected to the rotating frame (12) is provided. An electric push rod (412) is fixedly connected between the movable block (411) and the rotating frame (12). A disc is fixedly connected to the bottom of the rotating rod (410), and a guiding column (413) is eccentrically installed at the bottom of the disc.

3. The dynamic test device for evaluating the penetration performance of an oil scale inhibitor according to claim 2, characterized in that A V-shaped groove (13) for the guiding column (413) to slide is formed on the rotating frame (12), and linear grooves (14) are symmetrically formed on both sides of the V-shaped groove (13). A toothed ring is installed at the bottom of the rotating frame (12). A servo motor is installed on the fixing column (11) through bolts, and a gear meshing with the toothed ring is installed on the output shaft of the servo motor.

4. The dynamic test device for evaluating the penetration performance of an oil scale inhibitor according to claim 1, wherein, A liquid collecting box (21) is fixedly installed at the bottom of one side of the liquid storage cylinder (2), and a liquid outlet pipe (22) and a liquid return pipe (23) fixedly communicated above the liquid collecting box (21) are provided. Abutting sleeves one (24) are installed at 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).

5. The dynamic test device for evaluating the penetration performance of an oil scale inhibitor according to claim 1, characterized in that, An oil collecting box (31) is fixedly installed at the bottom of one side of the oil storage cylinder (3), and an oil outlet pipe (32) and an oil return pipe (33) fixedly installed above the oil collecting box (31) are provided. Abutting sleeves two (34) are installed at one ends of the oil outlet pipe (32) and the oil return pipe (33) located outside the oil storage cylinder (3). A high-pressure oil pump (35) is installed on the oil outlet pipe (32).

6. The dynamic test device for evaluating the penetration performance of an oil scale inhibitor according to claim 5, wherein, One end of the oil outlet pipe (32) is fixedly communicated with the oil return pipe (33). The free end of the oil return pipe (33) is fixedly connected with an electromagnetic control valve. An electromagnetic three-way valve and a pressure sensor are respectively installed on the oil outlet pipe (32) and the oil return pipe (33). A heating rod is installed at the bottom inside the oil storage cylinder (3).

7. The dynamic test device for evaluating the penetration performance of an oil scale inhibitor according to claim 1, characterized in that, A blower (15) is installed on one side of the fixing frame (1) away from the oil storage cylinder (3), and an abutting sleeve three (16) is installed on the air outlet pipe of the blower (15).

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

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