An evaluation device and method for the effect of heavy oil viscosity reducer

Abstract

The present invention discloses an evaluation device and method for the effect of heavy oil viscosity reducer, belonging to the technical field of heavy oil viscosity reduction. An evaluation device and method for the effect of heavy oil viscosity reducer includes a base. An opening and closing block is arranged above the connecting groove. The front end of the opening and closing block is connected with a dial rod through an axis. The bottom surface of the moving seat is connected with a discharge pipe relative to the lower opening end of the connecting groove. A three-way pipe is connected between the lower ends of the two discharge pipes. A vertical plate is fixedly arranged at the lower end inside the three-way pipe. A plurality of evaluation components are arranged on the front wall of the support plate at a linear and equally spaced structure relative to the position below the three-way pipe. Through the arrangement of the evaluation components, the present invention not only improves the accuracy and controllability of the experiment on the effect of the viscosity reducer, but also makes the calculation and control of the dosage of heavy oil and the viscosity reducer more accurate under the setting of the moving seat, effectively enhancing the experimental efficiency, enabling the best dosage of the viscosity reducer to be compared and obtained as soon as possible and put into use, and having strong practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy oil viscosity reduction, and more specifically, to an evaluation device and method for the effect of heavy oil viscosity reducer. Background Art

[0002] Heavy oil generally refers to heavy oil which is the remaining heavy oil after gasoline and diesel are extracted from crude oil. Heavy oil is also called fuel oil and is a dark black liquid. According to the classification method of international conventions, heavy oil is called persistent oil. As the name implies, this kind of oil is relatively viscous and difficult to volatilize. Therefore, once it reaches the shore, it is very difficult to remove. It is mainly blended with atmospheric oil, vacuum residue, cracked residue, cracked diesel, catalytic diesel, etc. in the process of crude oil processing. Sometimes, heavy oil is mined by methods similar to coal mining, and sometimes heat is injected underground, such as injecting steam, hot water, or some hydrocarbon substances and viscosity reducers to dissolve it, increase its fluidity and then carry out mining. Among them, the most commonly used is the viscosity reducer. Since the reserve capacity of the viscosity reducer at the heavy oil mining site is limited, and the use of the viscosity reducer will also bring a large increase in costs, it is necessary to fully understand the effect of the viscosity reducer to be used before using the viscosity reducer, so as to make it play the greatest effect in use.

[0003] After retrieval, the patent with the publication number of CN107101911A discloses an evaluation device for the effect of heavy oil viscosity reducer. In this device, by setting an operation platform, a waste liquid collection box, a shut-off valve, a sewage discharge pipe, a box door, a spraying device, a storage box, cleaning tools, a clamping rack, a measuring cup, a computer, a ball valve, a camera and a measuring pipe, the flow condition of the heavy oil viscosity reducer can be accurately photographed by the camera and then recorded by the computer. Compared with the traditional method of visual observation and manual control, the accuracy is higher and the operation is very convenient.

[0004] When conducting a fluidity experiment on heavy oil mixed with a viscosity reducer, the existing device can only evaluate one ratio at a time. The staff needs to repeat the experiment multiple times to fully determine the dosage range where the effect of the viscosity reducer changes significantly. This not only severely slows down the evaluation rate, resulting in a significant delay in the use of the viscosity reducer, but also the method of evaluating the effect of only one ratio at a time lacks comparability, making it difficult for the staff to narrow down the evaluation ratio range and generating a large amount of testing. Moreover, although the measuring cup of this device can measure the components of the mixture of the viscosity reducer and heavy oil or one of them, due to the limited capacity of the measuring cup, when the staff conducts an experiment on a complex ratio of the two, it is difficult to clearly judge the addition amounts of the viscosity reducer and heavy oil at a glance, and continuous verification and calculation are required, which will cause inconvenience to the experiment. In addition, the measuring cup needs to be thoroughly cleaned after each use, otherwise the mixture adhering to its inner wall will cause changes in the ratio of the experimental substances in subsequent experiments, seriously affecting the accuracy of the evaluation of the effect of the viscosity reducer. In view of this, we propose a device and method for evaluating the effect of a heavy oil viscosity reducer.

[0005] After retrieval, for example, a patent with the publication number CN106437655A discloses a device and method for evaluating the effect of a heavy oil viscosity reducer. This device simulates the actual production conditions of a beam pumping unit model, truly simulates the dynamic mixing and viscosity reduction process of the viscosity reducer and heavy oil during the lifting process in the wellbore, and real-time monitors the dynamic change process of the pumping rod load during the lifting process of the mixed liquid along the simulated wellbore, and draws a dynamometer card showing the change law of the polished rod load of the beam pumping unit model with its displacement, which can be used to analyze the work or energy consumption of the beam pumping unit model and analyze the influence of the viscosity reducer on the load change; the device for evaluating the viscosity reduction effect of heavy oil in the present invention is provided with a visual window, which can observe the viscosity reduction effect of heavy oil in real time, improving the intuitiveness and accuracy of the indoor evaluation of the viscosity reduction effect of heavy oil. In addition, in the mixing and stirring structures between heavy oil and viscosity reducers in other existing patent technologies, a spiral stirring rod design is adopted, such as CN210787103U, but this design makes the entire mixing mechanism large in volume and not suitable for research in the experimental stage.

[0006] During the use of the existing device, the viscosity reducer and heavy oil are poured into the same oil pipe through the viscosity reducer tank, the viscosity reducer outlet pipeline, the heavy oil tank, and the heavy oil outlet pipeline. Although this method can conveniently and quickly adjust the ratio of the two, before changing the ratio, the staff must thoroughly clean the inside of the oil pipe to prevent the residual mixture of the previous ratio in the oil pipe from affecting the subsequent experimental results, which is time-consuming, laborious, and troublesome to operate. In view of this, we propose a device and method for evaluating the effect of a heavy oil viscosity reducer. Summary of the Invention

[0007] 1. Technical problems to be solved

[0008] The purpose of the present invention is to provide an evaluation device and method for the effect of heavy oil viscosity reducer to solve the problems put forward in the above-mentioned background technology.

[0009] 2. Technical solution

[0010] An evaluation device for the effect of heavy oil viscosity reducer includes a base, on the top surface of which a support plate is fixedly arranged, on the top surface of the support plate a tray is fixedly arranged, above the tray a moving seat is arranged, on the bottom surface of the moving seat a slider is fixedly arranged, on the top surface of the tray a chute is opened at a position corresponding to the slider, on the top surface of the moving seat two storage tanks are symmetrically and fixedly arranged, and in the middle of the top surface of the storage tank a cavity is opened;

[0011] On the upper end of the moving seat a heavy oil pump and a viscosity reducer pump respectively communicating with the two storage tanks are fixedly arranged, and in the middle of the bottom surface of the cavity an outlet is opened;

[0012] On the top surface of the moving seat a connection groove is opened at a position corresponding to the outlet, above the connection groove an opening and closing block is arranged, on the bottom surface of the moving seat at a position corresponding to the lower opening end of the connection groove an outlet pipe is connected, between the lower ends of the two outlet pipes a three-way pipe is connected, and inside the lower end of the three-way pipe a vertical plate is fixedly arranged;

[0013] On the front wall of the support plate at a position below the three-way pipe a plurality of evaluation components are arranged.

[0014] Below the cavity a piston is arranged, in the middle of the bottom surface of the piston a bottom groove is opened, in the middle of the top surface of the piston a round pipe penetrates through, inside the lower side of the round pipe a partition plate is arranged, on the top surface of the partition plate a plurality of tension springs are fixedly arranged in an annular equidistant structure, above the round pipe a connection head with an integral molding design is arranged, the bottom surface of the connection head is in extrusion fit with the top surface of the partition plate, the lower end of the round pipe extends to the upper part of the bottom groove and is communicated with the inside of the bottom groove, the partition plate is slidably matched with the inside of the round pipe, the tension springs are arranged in an inclined structure with the inside lower and the outside higher, the outer ends of the tension springs are connected and fixed with the inner wall of the round pipe, the material densities of the piston and the connection head are both less than those of heavy oil and viscosity reducer, on the lower ends of the outer walls on both sides of the connection head two through openings are symmetrically opened, the positions of the through openings can avoid the positions of the tension springs, on the upper ends of the outer walls on both sides of the connection head two side plates are symmetrically and fixedly arranged, in the middle of the inner wall of the side plate a limiting block is fixedly arranged, on the outer wall of the round pipe at a position corresponding to the limiting block a limiting groove is opened, on the lower end of the inner side wall of the limiting block a clamping block is fixedly arranged, and in the inner wall of the limiting groove at a position corresponding to the clamping block a clamping groove is opened.

[0015] The evaluation component includes a fixed seat, a bottom plate is provided below the fixed seat, a receiving groove is formed in the front part of the top surface of the fixed seat, a conical body is arranged in the receiving groove, directly below the tee pipe is opposite to the vertex of the conical body, the middle part of the opening end of the receiving groove corresponds to the lower opening end of the tee pipe, a transparent spiral experimental tube is arranged between the fixed seat and the bottom plate, through holes are formed in the middle parts of the fixed seat and the bottom plate at positions corresponding to both opening ends of the experimental tube, plate grooves are formed in the lower part of the rear wall of the fixed seat and the middle part of the rear wall of the bottom plate at positions corresponding to the through holes, baffles are arranged inside the plate grooves, both the plate grooves and the baffles are of T-shaped structures, and the rear end of the baffle passes through the rear opening end of the plate groove and extends to the outside and is in sliding fit with the plate groove.

[0016] The base, the support plate and the support board are arranged in a U-shaped structure with the concave surface facing forward. The bottom surface of the moving seat is in sliding contact with the top surface of the support board. The moving seat is of an L-shaped structure. Both the slider and the sliding groove are of T-shaped structures, and the slider is in sliding fit with the sliding groove.

[0017] A glass plate is embedded in the middle of the front wall of the storage tank. A plurality of scale blocks are linearly and equidistantly embedded on the outer side end of the front wall of the glass plate. The cavity is arranged in a T-shaped structure with the upper part small and the lower part large. The glass plate is of an arc-shaped structure. The front and rear outer walls of the glass plate are flush with the front wall of the storage tank and the front wall of the cavity respectively. The scale blocks are of an arc-shaped structure. The annular outer wall of the piston is in sliding contact with the inner wall of the cavity and the rear wall of the glass plate. The bottom groove is of a frustum structure.

[0018] The connecting head is a hollow column structure with a round table shape at the upper end. The lower part of the outer wall of the connecting head is in clearance fit with the inner wall of the round pipe. The lower end of the connecting head passes through the inside of the round pipe and extends to the middle of the bottom groove.

[0019] The inside of the connecting head is connected to the inside of the bottom groove through a through port. The side plate is of an L-shaped structure. The inner side wall of the side plate is in sliding contact with the outer wall of the round pipe. The limiting block is inserted and matched with the limiting groove. The clamping block is clamped and matched with the clamping groove.

[0020] Metal hoses are connected to the output ends and the input ends of the heavy oil pump and the viscosity reducer pump. The end of the metal hose on the front side extends into the cavity and is fixedly connected to the upper end of the connecting head. The end of the metal hose on the rear side extends to the middle part at the rear side of the support plate.

[0021] The upper part of the connecting groove is of a spherical structure. The front end of the opening and closing block is connected with a lever through an axis. The opening and closing block is a spherical structure with holes. The opening and closing block is rotationally matched with the upper part of the connecting groove. The diameters of the two opening ends of the connecting groove are equal to the inner diameter of the opening and closing block and the diameter of the discharge port.

[0022] The front end of the axis penetrates through the front wall of the connecting groove and extends to the front of the moving seat and is rotatably connected to the moving seat. The upper part of the tee pipe is arranged in a V-shaped structure, and the top surface of the vertical plate is fixedly connected to the middle part of the inner top surface of the tee pipe.

[0023] Both the fixed seat and the front part of the bottom plate are semi-cylindrical structures. The rear wall of the fixed seat and the rear wall of the bottom plate are respectively fixedly connected to the upper and lower sides of the front wall of the support plate.

[0024] The upper part of the through hole located on the upper side is communicated with the lower part of the accommodating groove. A transparent plate is embedded on the outer side wall of the experimental tube. Both the experimental tube and the transparent plate are arranged in a spiral structure. The cross-section of the experimental tube is a three-quarter circular ring structure, and the cross-section of the transparent plate is a quarter circular ring structure.

[0025] A connecting hole is opened at the position of the top surface of the baffle relative to the front side of the through hole. The diameter of the through hole is adapted to the diameter of the connecting hole. A square groove is opened on the front wall of the support plate relative to the position of the baffle. The rear end of the baffle passes through the square groove and extends to the rear and is slidably matched with the square groove. A pull plate is fixedly arranged between the rear ends of the baffles on the same side. The front wall of the pull plate is in clearance fit with the rear wall of the support plate.

[0026] The front wall of the pull plate is in clearance fit with the rear wall of the support plate. A guide groove is opened on the top surface of the base relative to the positions below the plurality of bottom plates. The bottom surface of the guide groove is an inclined surface structure with a higher left side and a lower right side.

[0027] The present invention also discloses a method for evaluating the effect of a heavy oil viscosity reducer, including the following steps:

[0028] S1. The staff can first insert the connector along the upper opening end of the round tube. At first, the side plate will undergo elastic deformation and deflect outward under the extrusion effect of the inner wall of the limit groove. Subsequently, under the guiding action of the limit block and the limit groove, the clamping block and the clamping groove will be quickly clamped. At this time, the lower end of the connector will push the partition plate into the lower part of the bottom groove, and at the same time, the tension spring will also be stretched by force. In this way, the inside of the metal hose located on the front side is communicated with the inside of the bottom groove through the connector;

[0029] S2. Then, the staff needs to extract heavy oil and viscosity reducer through the metal hoses at the rear via a heavy oil pump and a viscosity reducer pump respectively. The heavy oil and the viscosity reducer can flow out from the through ports opened on both sides of the connector and flow into the bottom groove, so as to avoid the blockage of the opening end of the connector by the partition plate. As the heavy oil and the viscosity reducer are poured in, the piston will gradually be lifted, and the staff can clearly observe the injection amounts of the two from the glass plate in cooperation with the scale block;

[0030] S3. After injecting sufficient heavy oil and viscosity reducer, the staff can first calculate the different amounts required for various mixing ratio schemes in the evaluation experiments of the two according to the mixing ratio requirements. Then, the lower open end of the three-way pipe is sequentially corresponding to multiple evaluation components, and by rotating the dial plate, the axis drives the opening and closing block to rotate and open the connecting groove. The heavy oil and viscosity reducer will flow down along both sides of the three-way pipe respectively. The vertical plate can prevent the two from mixing in the three-way pipe and avoid affecting the subsequent evaluation results. During this process, the staff can judge the injected amount by the change of the scale block corresponding to the liquid level. Then, by using this method in combination with the sliding fit of the slider on the bottom surface of the moving seat and the chute, different mixtures with sufficient amounts of different mixing ratios can be injected into each evaluation component; when the heavy oil and viscosity reducer enter the bottom output interface of the three-way pipe and enter the receiving groove, they first touch the triangular pyramid and are evenly dispersed to various positions in the groove body of the receiving groove by the triangular pyramid, so as to achieve the uniform mixing of the heavy oil and viscosity reducer;

[0031] S4. When sufficient mixture is added to the receiving groove in each evaluation component, the staff can first pull the dial rods on both sides back to their original positions to make the opening and closing block seal the connecting groove again to prevent the leakage and waste of heavy oil and viscosity reducer. Then, the staff can pull the pull plate located at the upper part backward from the rear. In this way, multiple baffles located at the upper part will slide backward along the plate groove and the square groove. When the position of the baffle moves to the last end of the movable range, the connecting holes on it will communicate with the through holes, and then the heavy oil viscosity reducer mixture in the receiving groove will flow into the experimental tube along the connecting holes and the through holes;

[0032] S5. Since the experimental tube is arranged in a spiral structure, the path of the heavy oil viscosity reducer mixture flowing downward in a spiral shape inside it will be extremely long. In this way, the staff can accurately observe the flow rates of mixtures with various different mixing ratios through the transparent plate, so as to conveniently and quickly evaluate the effect of the viscosity reducer for multiple experimental groups. Moreover, such a structure also enhances the comparability, making it more convenient for the staff to judge a more reasonable mixing ratio among multiple experimental groups and being able to narrow the experimental range faster and better based on this;

[0033] S6. After the experiment is completed, the staff can pull the baffle in the rear plate groove of the bottom plate in the same way by using the lower pull plate. Then, the experimental substances in multiple evaluation components will collectively flow into the guide groove opened on the top surface of the base. Under the guidance of its bottom surface, these waste experimental substances will be concentrated together on the right side, facilitating the subsequent cleaning work of the staff.

[0034] 3. Beneficial effects

[0035] Compared with the prior art, the advantages of the present invention are as follows:

[0036] 1. In the present invention, the accommodating groove with an internal triangular pyramid makes the mixing of heavy oil and viscosity reducer more uniform, and at the same time can greatly reduce the volume of mixing and stirring in the blending ratio of the two.

[0037] 2. The present invention is provided with a plurality of evaluation components. The staff can conduct simultaneous viscosity reducer effect experiments through a plurality of experimental tubes. With the arrangement of the spiral experimental tubes, the mixture of viscosity reducer and heavy oil has a great flowable distance. During the experiment, the staff can clearly observe the flow rates of mixtures of heavy oil and viscosity reducer with various different ratios through the transparent plate, which greatly improves the comparability of the staff using this device for effect evaluation experiments, enables the subsequent narrowing and determination of the optimal ratio range faster and more optimally, is conducive to improving the progress speed of the experiment, and can also enable the viscosity reducer to be quickly put into use with the optimal ratio.

[0038] 3. The present invention is provided with a storage tank. The staff can pump external heavy oil and viscosity reducer into the storage tank through a heavy oil pump and a viscosity reducer pump respectively for storage, which can not only achieve the effect of reducing external stain pollution, but also enable the heavy oil and viscosity reducer to be more accurately metered. With the arrangement of the partition plate, it can not only seal the cavity under the piston, but also the partition plate can block the overflow of heavy oil and viscosity reducer after pulling out the connector. In this way, the staff can accelerate the outflow of heavy oil and viscosity reducer by pressing the piston, which greatly improves the operation convenience and flexibility of this device, achieving two goals with one action.

[0039] 4. The present invention is provided with an opening and closing block, a three-way pipe and a vertical plate. Under the control of the opening and closing block on the connectivity of the upper part of the connecting groove, the accurate control of the discharge amount of heavy oil and viscosity reducer can be achieved, improving the accuracy of the experiment. On the other hand, with the arrangement of the vertical plate, the inner part of the three-way pipe is divided into two parts with equal volume. In this way, the heavy oil and viscosity reducer will not come into contact before gathering in the accommodating groove, avoiding the influence of the heavy oil and viscosity reducer adhering to the inner wall of the three-way pipe on the experimental product ratio, improving the control of experimental variables and further enhancing the statistical accuracy of the usage amount of heavy oil and viscosity reducer, with strong practicability.

[0040] 5. The present invention is provided with a plurality of baffles. Through the pull plate connected between the rear ends of the plurality of baffles, the connectivity of the through holes and connecting holes of the plurality of evaluation components of this device can be synchronously manipulated, making the time variable easier to be controlled by the staff, with a clever design. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 is a schematic side sectional view of the support plate of the present invention;

[0043] Figure 3Schematic diagram of the decomposition structure of the evaluation component of the present invention;

[0044] Figure 4 Schematic diagram of the enlarged structure at position A of the present invention;

[0045] Figure 5 Schematic diagram of the sectional structure of the overall moving seat of the present invention;

[0046] Figure 6 Schematic diagram of the sectional structure of the storage tank of the present invention;

[0047] Figure 7 Schematic diagram of the sectional structure of the connector of the present invention;

[0048] Figure 8 Schematic diagram of the front sectional structure of the base of the present invention;

[0049] Figure 9 Schematic diagram of the sectional structure of the three-way pipe of the present invention;

[0050] Figure 10 Schematic diagram of the disassembled structure of the piston and the circular tube of the present invention.

[0051] Explanation of the reference numerals in the figure: 1. Base; 2. Support plate; 3. Tray; 4. Moving seat; 5. Slide block; 6. Chute; 7. Storage tank; 8. Cavity; 9. Glass plate; 10. Scale block; 11. Piston; 12. Bottom groove; 13. Circular tube; 14. Partition board; 15. Tensile spring; 16. Connector; 17. Through hole; 18. Side plate; 19. Limiting block; 20. Limiting groove; 21. Clamping block; 22. Clamping groove; 23. Thick oil pump; 24. Viscosity reducer pump; 25. Metal hose; 26. Discharge port; 27. Connection groove; 28. Opening and closing block; 29. Axis; 30. Lever; 31. Discharge pipe; 32. Three-way pipe; 33. Vertical plate; 34. Evaluation component; 35. Fixed seat; 36. Bottom plate; 37. Accommodation groove; 38. Experimental tube; 39. Through hole; 40. Transparent plate; 41. Plate groove; 42. Baffle; 43. Connection hole; 44. Square groove; 45. Pulling plate; 46. Guide groove. Detailed implementation manners

[0052] Please refer to Figures 1-10 , the present invention provides a technical solution:

[0053] An evaluation device for the effect of heavy oil viscosity reducer, including a base 1. At the rear end of the top surface of the base 1, a support plate 2 is fixedly installed. On the top surface of the support plate 2, a support plate 3 is fixedly installed. Above the support plate 3, there is a moving seat 4. At the rear part of the bottom surface of the moving seat 4, a slider 5 is fixedly installed. At the position of the support plate 3 corresponding to the slider 5 on the top surface, a chute 6 is opened. At the front part of the top surface of the moving seat 4, two storage tanks 7 are symmetrically and fixedly installed. In the middle of the top surface of the storage tank 7, a cavity 8 is opened. In the middle of the front wall of the storage tank 7, a glass plate 9 is embedded. On the outer side end of the front wall of the glass plate 9, a plurality of scale blocks 10 are embedded at equal intervals linearly;

[0054] Below the cavity 8, there is a piston 11. In the middle of the bottom surface of the piston 11, a bottom groove 12 is opened. In the middle of the top surface of the piston 11, a round tube 13 passes through. At the lower side inside the round tube 13, there is a partition plate 14. On the top surface of the partition plate 14, a plurality of tension springs 15 are fixedly installed in an annular and equally spaced structure. Above the round tube 13, there is a connector 16 with an integrally formed design. The bottom surface of the connector 16 is in pressing fit with the top surface of the partition plate 14. The lower end of the round tube 13 extends to the upper part of the bottom groove 12 and is connected to the inside of the bottom groove 12. The partition plate 14 is slidably matched with the inside of the round tube 13. The tension springs 15 are arranged in an inclined structure with the inner side lower and the outer side higher. The outer side ends of the tension springs 15 are connected and fixed to the inner wall of the round tube 13. The material densities of the piston 11 and the connector 16 are both less than those of heavy oil and viscosity reducer. On the lower ends of the outer walls on both sides of the connector 16, two through ports 17 are symmetrically opened. The position of the through ports 17 can avoid the position of the tension springs 15. On the upper ends of the outer walls on both sides of the connector 16, two side plates 18 are symmetrically and fixedly installed. In the middle of the inner wall of the side plate 18, a limit block 19 is fixedly installed. At the position of the outer wall of the round tube 13 corresponding to the limit block 19, a limit groove 20 is opened. On the lower end of the inner side wall of the limit block 19, a clamping block 21 is fixedly installed. At the position of the inner wall of the limit groove 20 corresponding to the clamping block 21, a clamping groove 22 is opened;

[0055] At the upper end of the rear wall of the moving seat 4, a heavy oil pump 23 and a viscosity reducer pump 24 are respectively fixedly installed in a left-right symmetric structure. The output end and the input end of the heavy oil pump 23 and the output end and the input end of the viscosity reducer pump 24 are both connected with metal hoses 25. In the middle of the bottom surface of the cavity 8, a discharge port 26 is opened;

[0056] At the position of the moving seat 4 corresponding to the discharge port 26 on the top surface, a connection groove 27 is opened. Above the connection groove 27, there is an opening and closing block 28. The front end of the opening and closing block 28 is connected with a lever 30 through an axis 29. At the position of the bottom surface of the moving seat 4 corresponding to the lower side opening end of the connection groove 27, a discharge pipe 31 is connected. Between the lower ends of the two discharge pipes 31, a tee pipe 32 is connected. Inside the lower end of the tee pipe 32, a vertical plate 33 is fixedly installed;

[0057] A plurality of evaluation components 34 are linearly and equidistantly arranged at the position of the front wall of the support plate 2 relative to the lower part of the three-way pipe 32. The evaluation component 34 includes a fixed seat 35. A bottom plate 36 is arranged below the fixed seat 35. A receiving groove 37 is formed in the front part of the top surface of the fixed seat 35. A conical body is arranged in the receiving groove 37. The vertex of the conical body is directly below the three-way pipe 32. The middle of the opening end of the receiving groove 37 corresponds to the lower opening end of the three-way pipe 32. A transparent spiral experimental tube 38 is arranged between the fixed seat 35 and the bottom plate 36. Through holes 39 are formed at the positions of the middle parts of the fixed seat 35 and the bottom plate 36 relative to the two open ends of the experimental tube 38. Plate grooves 41 are formed at the positions of the lower part of the rear wall of the fixed seat 35 and the middle part of the rear wall of the bottom plate 36 relative to the through holes 39. A baffle 42 is arranged inside the plate groove 41. Both the plate groove 41 and the baffle 42 are of T-shaped structures. The rear end of the baffle 42 passes through the rear opening end of the plate groove 41 and extends to the outside and is slidably matched with the plate groove 41.

[0058] Specifically, the base 1, the support plate 2 and the support plate 3 are arranged in a U-shaped structure with the concave surface facing forward. The bottom surface of the moving seat 4 is in sliding contact with the top surface of the support plate 3. The support plate 3 has a supporting effect on the moving seat 4 and can share its load to the support plate 2. The moving seat 4 is of an L-shaped structure. Both the slider 5 and the chute 6 are of T-shaped structures. The slider 5 and the chute 6 are slidably matched, so that the moving seat 4 can be moved left and right.

[0059] Further, the cavity 8 is arranged in a T-shaped structure with a smaller upper part and a larger lower part. The glass plate 9 is of an arc-shaped structure. The liquid level height inside the cavity 8 can be observed through the glass plate 9. The front and rear outer walls of the glass plate 9 are flush with the front wall of the storage tank 7 and the front wall of the cavity 8 respectively. The scale block 10 is of an arc-shaped structure. The scale block 10 can be used to judge the stock of viscous oil or viscosity reducer in the cavity 8. The outer circumferential wall of the piston 11 is in sliding contact with the inner wall of the cavity 8 and the rear wall of the glass plate 9, so as to ensure the partition of the upper and lower sides by the piston 11. The bottom groove 12 is of a frustum structure, and the bottom groove 12 provides enough space for the insertion of the connector 16.

[0060] Furthermore, the lower end of the round tube 13 extends to the upper part of the bottom groove 12 and is communicated with the inside of the bottom groove 12. The partition plate 14 is slidably matched with the inside of the round tube 13. The tension spring 15 is arranged in an inclined structure with a lower inner part and a higher outer part. The outer end of the tension spring 15 is fixedly connected with the inner wall of the round tube 13, so as to ensure that the cavity 8 below the piston 11 is fully isolated from the outside when the connector 16 is not inserted into the round tube 13, and avoid the pollution of the viscous oil and viscosity reducer in the storage tank 7 by external stains. Moreover, under such a design, the connector 16 can be removed. In this way, when necessary, the staff can promote the outflow of the viscous oil or viscosity reducer in the storage tank 7 by pressing the piston 11, improving the flexibility of the device.

[0061] Furthermore, the connector 16 is a hollow column structure with a frustum-shaped upper end. The lower part of the outer wall of the connector 16 is in clearance fit with the inner wall of the round tube 13 to prevent the outer wall of the connector 16 from squeezing the tension spring 15. The lower end of the connector 16 passes through the inside of the round tube 13 and extends to the middle of the bottom groove 12. The bottom surface of the connector 16 is in pressing fit with the top surface of the partition plate 14. By inserting the connector 16 into the round tube 13, the partition plate 14 can be pushed to the lower end position of the bottom groove 12, thus opening the cavity 8 so that the thick oil pump 23 and the viscosity reducer pump 24 can pour thick oil or viscosity reducer into the storage tank 7.

[0062] Furthermore, the inside of the connector 16 is connected to the inside of the bottom groove 12 through the through hole 17. Due to the design of the through hole 17, thick oil and viscosity reducer can be poured into the bottom groove from the through hole 17, preventing the lower opening end of the connector 16 from being blocked by the pulling force of the tension spring 15 on the partition plate 14. The side plate 18 is an L-shaped structure. The inner side wall of the side plate 18 is in sliding contact with the outer wall of the round tube 13. The limiting block 19 is in plug-in fit with the limiting groove 20, and the clamping block 21 is in clamping fit with the clamping groove 22. The plugging direction of the connector 16 and the round tube 13 can be restricted through the limiting block 19 and the limiting groove 20, so that the position of the through hole 17 can avoid the position of the tension spring 15, preventing the impact force of the poured thick oil and viscosity reducer from damaging the tension spring 15 and improving the protection of the tension spring 15.

[0063] Furthermore, the end of the metal hose 25 on the front side extends into the cavity 8 and is fixedly connected to the upper end of the connector 16. The end of the metal hose 25 on the rear side extends to the middle of the rear side of the support plate 2. Through the metal hoses 25 on both sides, external thick oil and viscosity reducer can be poured into the two storage tanks for separate storage, facilitating the staff to count the usage amounts of the two.

[0064] Furthermore, the upper part of the connecting groove 27 is a spherical structure, and the opening and closing block 28 is a spherical structure with a hole. The opening and closing block 28 is in rotational fit with the upper part of the connecting groove 27. The diameters of the two open ends on both sides of the connecting groove 27 are equal to the inner diameter of the opening and closing block 28 and the diameter of the discharge port 26. This design makes it more convenient to control the amount of thick oil and viscosity reducer injected into the evaluation component 34 by this device, which is beneficial to improving the accuracy of the evaluation results.

[0065] Furthermore, the front end of the axis 29 passes through the front wall of the connecting groove 27 and extends to the front of the moving seat 4 and is rotatably connected to the moving seat 4. The upper part of the tee pipe 32 is arranged in a V-shaped structure. The top surface of the vertical plate 33 is fixedly connected to the middle of the inner top surface of the tee pipe 32. Through the division of the vertical plate 33, the tee pipe 32 can be divided into two parts on the left and right, so that thick oil and viscosity reducer will not come into contact before falling into the evaluation component 34, avoiding the thick oil and viscosity reducer remaining on the inner wall of the tee pipe 32 from affecting the subsequent experimental group ratio.

[0066] Furthermore, the evaluation component 34 includes a fixed seat 35. A bottom plate 36 is provided below the fixed seat 35. The front parts of both the fixed seat 35 and the bottom plate 36 are semi-cylindrical structures. The rear wall of the fixed seat 35 and the rear wall of the bottom plate 36 are respectively connected and fixed to the upper and lower sides of the front wall of the support plate 2. Multiple evaluation components 34 can achieve a comparison effect, making the effect test of the viscosity reducer more comparable.

[0067] Furthermore, a receiving groove 37 is formed in the front part of the top surface of the fixed seat 35. The receiving groove 37 can be used as a position for temporarily storing the mixture of heavy oil and viscosity reducer, so as to control the experimental products in multiple evaluation components 34 to start flowing at the same time. The lower part of the receiving groove 37 is an inverted frustum structure, and its upper part ensures the storage capacity of the receiving groove 37. Through the frustum structure, the heavy oil and viscosity reducer in the receiving groove 37 can be guided to concentrate in the middle. The middle of the opening end of the receiving groove 37 at the leftmost end corresponds to the lower opening end of the three-way pipe 32. An experimental pipe 38 is provided between the fixed seat 35 and the bottom plate 36.

[0068] It is worth introducing that through holes 39 are formed in the middle parts of both the fixed seat 35 and the bottom plate 36 at positions corresponding to the two open ends of the experimental pipe 38. The upper part of the through hole 39 on the upper side is communicated with the lower part of the receiving groove 37. A transparent plate 40 is embedded on the outer side wall of the experimental pipe 38. Both the experimental pipe 38 and the transparent plate 40 are arranged in a spiral structure. The cross-section of the experimental pipe 38 is a three-quarter circular ring structure, and the cross-section of the transparent plate 40 is a quarter circular ring structure. When the experiment starts, the staff can observe the movement of the experimental products in the experimental pipe 38 from the transparent plate 40, so that the difference in the flow rates of the experimental products with various ratios can be observed more clearly during the experiment, which is convenient for the staff to make further judgments.

[0069] It should be noted that plate grooves 41 are formed in the lower part of the rear wall of the fixed seat 35 and the middle part of the rear wall of the bottom plate 36 at positions corresponding to the through holes 39. Baffles 42 are arranged inside the plate grooves 41. Both the plate grooves 41 and the baffles 42 are T-shaped structures. The rear end of the baffle 42 passes through the rear opening end of the plate groove 41 and extends to the outside and is slidably matched with the plate groove 41. The positions of the baffle 42 can be limited by the two inner walls at both ends of the T-shaped structure on both sides, so that the baffle 42 can be easily switched between two fixed positions, which is convenient for the operation of the staff.

[0070] It should be noted that a connection hole 43 is formed in the top surface of the baffle 42 at a position corresponding to the front side of the through hole 39. The diameter of the through hole 39 is adapted to the diameter of the connection hole 43. A square groove 44 is formed in the front wall of the support plate 2 at a position corresponding to the baffle 42. The rear end of the baffle 42 passes through the square groove 44 and extends to the rear and is slidably matched with the square groove 44. In this way, the staff can control multiple baffles 42 from the rear of the support plate 2.

[0071] In addition, a pull plate 45 is fixedly arranged between the rear ends of multiple baffles 42 on the same side. The front wall of the pull plate 45 is in clearance fit with the rear wall of the support plate 2, so that multiple baffles 42 can move back and forth simultaneously, enabling the test articles in multiple evaluation components 34 of the device to start flowing at the same time, achieving control of the time variable. A guide groove 46 is formed at the position of the top surface of the base 1 relative to the lower sides of multiple bottom plates 36. The bottom surface of the guide groove 46 is an inclined surface structure with a higher left side and a lower right side. After the experiment, the staff only needs to connect the through hole 39 on the lower side and the connection hole 43 to discharge the waste test articles from the evaluation component 34. Under the inclined surface structure of the bottom surface of the guide groove 46, the waste test articles will be exported to the right, facilitating the subsequent collection and cleaning of the waste test articles by the staff.

[0072] A method for evaluating the effect of a heavy oil viscosity reducer includes the following steps:

[0073] S1. The staff can first insert the connector 16 along the upper opening end of the round tube 13. Initially, under the extrusion effect of the inner wall of the limit groove 20, the side plate 18 will undergo elastic deformation and deflect outward. Subsequently, under the guiding action of the limit block 19 and the limit groove 20, the clamping block 21 and the clamping groove 22 will be quickly clamped. At this time, the lower end of the connector 16 will push the partition plate 14 into the lower part of the bottom groove 12, and at the same time, the tension spring 15 will also be stretched. In this way, the inside of the metal hose 25 on the front side is connected to the inside of the bottom groove 12 through the connector 16.

[0074] S2. Then, the staff needs to extract heavy oil and viscosity reducer through the metal hose 25 at the rear via a heavy oil pump 23 and a viscosity reducer pump 24 respectively. The heavy oil and viscosity reducer can flow out from the through openings 17 formed on both sides of the connector 16 and flow into the bottom groove 12, thereby avoiding the blockage of the opening end of the connector 16 by the partition plate 14. As the heavy oil and viscosity reducer are poured in, the piston 11 will gradually be raised, and the staff can clearly observe the injection amounts of the two from the glass plate 9 in cooperation with the scale block 10.

[0075] S3. After injecting sufficient heavy oil and viscosity reducer, the staff can first calculate the different amounts required for various mixing ratio schemes in the evaluation experiments of the two according to the mixing ratio requirements. Then, the lower open end of the three-way pipe 32 is successively corresponded to multiple evaluation components 34, and by rotating the dial plate, the axis 29 drives the opening and closing block 28 to rotate and open the connecting groove 27. The heavy oil and viscosity reducer will respectively flow down along both sides of the three-way pipe 32. The vertical plate 33 can prevent the two from mixing in the three-way pipe 32 and avoid affecting the subsequent evaluation results. During this process, the staff can judge the injected amount through the change of the scale block 10 corresponding to the liquid level. Subsequently, by using this method and matching the sliding of the slider 5 on the bottom surface of the moving seat 4 with the sliding groove 6, different mixtures with sufficient amounts of different mixing ratios can be injected into each evaluation component 34; when the heavy oil and viscosity reducer enter the bottom output interface of the three-way pipe 32 and enter the receiving groove 37, they first touch the triangular pyramid and are evenly dispersed to various positions in the groove body of the receiving groove 37 by the triangular pyramid, so as to realize the uniform mixing of the heavy oil and viscosity reducer;

[0076] S4. When sufficient mixture is added to the receiving groove 37 in each evaluation component 34, the staff can first turn the lever 30 on both sides back to its original position to make the opening and closing block 28 seal the connecting groove 27 again to prevent the heavy oil and viscosity reducer from leaking and causing waste. Subsequently, the staff can pull the upper pull plate 45 backward from the rear. In this way, the multiple upper baffles 42 will slide backward along the plate groove 41 and the square groove 44. When the position of the baffle 42 moves to the last end of the movable range, the connecting hole 43 on it will communicate with the through hole 39, and then the heavy oil viscosity reducer mixture in the receiving groove 37 will flow into the experimental tube 38 along the connecting hole 43 and the through hole 39;

[0077] S5. Since the experimental tube 38 is arranged in a spiral structure, the path along which the heavy oil viscosity reducer mixture descends spirally inside it will be extremely long. In this way, the staff can accurately observe the flow rate of mixtures with various different mixing ratios through the transparent plate 40. Based on this, the viscosity reducer effect evaluation of multiple experimental groups can be carried out conveniently and quickly. Moreover, such a structure also enhances the comparability, making it more convenient for the staff to judge a more reasonable mixing ratio among multiple experimental groups and enabling them to narrow the experimental range faster and better;

[0078] S6. After the experiment is completed, the staff can pull the baffle 42 in the rear plate groove 41 of the bottom plate 36 in the same way by using the lower pull plate 45. Subsequently, the experimental substances in multiple evaluation components 34 will collectively flow into the guide groove 46 opened on the top surface of the base 1. Under the guidance of its bottom surface, these waste experimental substances will be concentrated together on the right side, facilitating the subsequent cleaning work of the staff.

[0079] The staff can first insert the connector 16 along the upper opening end of the round tube 13. Initially, under the extrusion effect of the inner wall of the limit groove 20, the side plate 18 will undergo elastic deformation and deflect outward. Subsequently, under the guiding action of the limit block 19 and the limit groove 20, the clamping block 21 and the clamping groove 22 will be quickly clamped. At this time, the lower end of the connector 16 will push the partition plate 14 into the lower part of the bottom groove 12, and at the same time, the tension spring 15 will also be stretched. In this way, the inside of the front metal hose 25 is connected to the inside of the bottom groove 12 through the connector 16. After that, the staff needs to extract heavy oil and viscosity reducer through the rear metal hose 25 via the heavy oil pump 23 and the viscosity reducer pump 24 respectively. The heavy oil and viscosity reducer can flow out from the through holes 17 opened on both sides of the connector 16 and flow into the bottom groove 12, thereby avoiding the blockage of the opening end of the connector 16 by the partition plate 14. As the heavy oil and viscosity reducer are poured in, the piston 11 will gradually be lifted, and the staff can clearly observe the injection amounts of the two through the glass plate 9 in cooperation with the scale block 10. After injecting sufficient heavy oil and viscosity reducer, the staff can first calculate the different amounts required for various mixing ratio schemes in the evaluation experiment of the two according to the mixing ratio requirements, and then successively correspond the lower opening end of the three-way pipe 32 to multiple evaluation components 34, and by rotating the dial plate, the shaft center 29 drives the opening and closing block 28 to rotate to open the connecting groove 27. The heavy oil and viscosity reducer will respectively flow down along both sides of the three-way pipe 32. The setting of the vertical plate 33 can prevent the two from mixing in the three-way pipe 32 and avoid affecting the subsequent evaluation results. During this process, the staff can judge the injected amount through the change of the scale block 10 corresponding to the liquid level. Subsequently, by using this method in cooperation with the sliding fit of the slider 5 on the bottom surface of the moving seat 4 and the sliding groove 6, different mixtures with sufficient amounts can be injected into each evaluation component 34. When the receiving grooves 37 in each evaluation component 34 are filled with sufficient mixtures, the staff can first pull the lever 30 on both sides back to the original position so that the opening and closing block 28 seals the connecting groove 27 again to prevent the leakage of heavy oil and viscosity reducer and cause waste. Subsequently, the staff can pull the upper pull plate 45 backward from the rear. In this way, the upper multiple baffle plates 42 will slide backward along the plate groove 41 and the square groove 44. When the position of the baffle plate 42 moves to the last end of the movable range, the connecting hole 43 on it will communicate with the through hole 39. Then, the heavy oil viscosity reducer mixture in the receiving groove 37 will flow into the experimental tube 38 along the connecting hole 43 and the through hole 39. Since the experimental tube 38 is arranged in a spiral structure, the path along which the heavy oil viscosity reducer mixture descends spirally inside it will be extremely long. In this way, the staff can accurately observe the flow rates of mixtures with various different mixing ratios through the transparent plate 40, thereby conveniently and quickly evaluating the effect of the viscosity reducer for multiple experimental groups. Moreover, such a structure also enhances the comparability, making it more convenient for the staff to judge a more reasonable mixing ratio among multiple experimental groups and enabling them to narrow the experimental range faster and better. After the experiment is completed,The staff can pull the baffle 42 in the rear plate groove 41 of the bottom plate 36 in the same way by using the lower pull plate 45. Subsequently, the experimental objects in the multiple evaluation components 34 will collectively flow into the guide groove 46 opened on the top surface of the base 1. Under the guidance of its bottom surface, these discarded experimental objects will be concentrated together on the right side, facilitating the subsequent cleaning work of the staff.

Claims

1. An evaluation device for the effect of heavy oil viscosity reducer, including a base, characterized in that: A support plate is fixedly arranged on the top surface of the base, a support tray is fixedly arranged on the top surface of the support plate, a moving seat is arranged above the support tray, a slider is fixedly arranged on the bottom surface of the moving seat, a chute is formed in the top surface of the support tray at a position corresponding to the slider, two storage tanks are symmetrically and fixedly arranged on the top surface of the moving seat, and a cavity is formed in the middle of the top surface of the storage tank; a thick oil pump and a viscosity reducer pump respectively communicated with the two storage tanks are fixedly arranged at the upper end of the moving seat, and a discharge port is formed in the middle of the bottom surface of the cavity; a connection groove is formed in the top surface of the moving seat at a position corresponding to the discharge port, an opening and closing block is arranged in the upper part of the connection groove, a discharge pipe is connected to the bottom surface of the moving seat at a position corresponding to the lower opening end of the connection groove, a tee joint is connected between the lower ends of the two discharge pipes, and a vertical plate is fixedly arranged at the lower part inside the tee joint; a plurality of evaluation components are arranged on the front wall of the support plate at a position below the tee joint. A piston is arranged in the lower part of the cavity, a bottom groove is formed in the middle of the bottom surface of the piston, a round tube penetrates through the middle of the top surface of the piston, a partition plate is arranged in the lower side of the round tube, a plurality of tension springs are fixedly arranged on the top surface of the partition plate in an annular equidistant structure, a connection head with an integrally formed design is arranged above the round tube, the bottom surface of the connection head is in extrusion fit with the top surface of the partition plate, the lower end of the round tube extends to the upper part of the bottom groove and is communicated with the inside of the bottom groove, the partition plate is in sliding fit with the inside of the round tube, the tension springs are arranged in an inclined structure with a lower inner side and a higher outer side, the outer ends of the tension springs are fixedly connected with the inner wall of the round tube, the material densities of the piston and the connection head are both smaller than those of the thick oil and the viscosity reducer, two through openings are symmetrically formed in the lower ends of the outer walls on both sides of the connection head, two side plates are symmetrically and fixedly arranged on the upper ends of the outer walls on both sides of the connection head, a limiting block is fixedly arranged in the middle of the inner wall of the side plate, a limiting groove is formed in the outer wall of the round tube at a position corresponding to the limiting block, a clamping block is fixedly arranged on the lower end of the inner side wall of the limiting block, and a clamping groove is formed in the inner wall of the limiting groove at a position corresponding to the clamping block. The evaluation component includes a fixed seat, a bottom plate is arranged below the fixed seat, a receiving groove is formed in the front part of the top surface of the fixed seat, a triangular pyramid is arranged in the receiving groove, the vertex of the triangular pyramid is directly opposite to the lower part of the tee joint, the middle of the opening end of the receiving groove corresponds to the lower opening end of the tee joint, a transparent spiral experimental tube is arranged between the fixed seat and the bottom plate, through holes are formed in the middle of the fixed seat and the middle of the bottom plate at positions corresponding to the two opening ends of the experimental tube, plate grooves are formed in the lower part of the rear wall of the fixed seat and the middle of the rear wall of the bottom plate at positions corresponding to the through holes, baffles are arranged in the plate grooves, the plate grooves and the baffles are both of a T-shaped structure, and the rear end of the baffle passes through the rear opening end of the plate groove and extends to the outside and is in sliding fit with the plate groove.

2. The evaluation device for the effect of heavy oil viscosity reducer according to claim 1, characterized in that: The base, the support plate and the support tray are arranged in a U-shaped structure with a concave surface facing forward, the bottom surface of the moving seat is in sliding contact with the top surface of the support tray, the moving seat is of an L-shaped structure, the slider and the chute are both of a T-shaped structure, and the slider is in sliding fit with the chute.

3. An evaluation device for the effect of a heavy oil viscosity reducer according to claim 1, characterized in that: A glass plate is embedded in the middle of the front wall of the storage tank. A plurality of scale blocks are linearly and equidistantly embedded on the outer side end of the front wall of the glass plate. The cavity is arranged in a T-shaped structure with a smaller upper part and a larger lower part. The glass plate is in an arc structure. The front and rear outer walls of the glass plate are flush with the front wall of the storage tank and the front wall of the cavity respectively. The scale blocks are in an arc structure. The annular outer wall of the piston is in sliding contact with the inner wall of the cavity and the rear wall of the glass plate. The bottom groove is in a frustum structure.

4. An evaluation device for the effect of heavy oil viscosity reducer according to claim 1, characterized in that: The connector is a hollow column structure with a frustum-shaped upper end. The lower part of the outer wall of the connector is in clearance fit with the inner wall of the round pipe. The lower end of the connector passes through the inside of the round pipe and extends to the middle of the bottom groove.

5. The evaluation device for the effect of heavy oil viscosity reducer according to claim 1, characterized in that: The inside of the connector is connected to the inside of the bottom groove through a through port. The side plate is in an L-shaped structure. The inner side wall of the side plate is in sliding contact with the outer wall of the round pipe. The limiting block is in plug-in fit with the limiting groove. The clamping block is in clamping fit with the clamping groove.

6. The evaluation device for the effect of heavy oil viscosity reducer according to claim 1, characterized in that: The output ends and input ends of the thick oil pump and the viscosity reducer pump are both connected with metal hoses. The end of the metal hose located on the front side extends into the cavity and is fixedly connected to the upper end of the connector. The end of the metal hose located on the rear side extends to the middle of the rear side of the support plate.

7. An evaluation device for the effect of heavy oil viscosity reducer according to claim 1, characterized in that: The upper part of the connecting groove is in a spherical structure. The front end of the opening and closing block is connected with a lever through an axis. The opening and closing block is a spherical structure with a hole. The opening and closing block is rotationally matched with the upper part of the connecting groove. The diameters of the two open ends of the connecting groove are equal to the inner diameter of the opening and closing block and the diameter of the discharge port respectively.

8. An evaluation device for the effect of a viscous crude oil viscosity reducer according to claim 7, characterized in that: The front end of the axis penetrates through the front wall of the connecting groove and extends to the front of the moving seat and is rotationally connected to the moving seat. The upper part of the three-way pipe is arranged in a V-shaped structure. The top surface of the vertical plate is fixedly connected to the middle of the inner top surface of the three-way pipe.

9. An evaluation device for the effect of a heavy oil viscosity reducer according to claim 1, characterized in that: Both the fixed seat and the front part of the bottom plate are in semi-cylindrical structures. The rear walls of the fixed seat and the bottom plate are respectively fixedly connected to the upper and lower sides of the front wall of the support plate.

10. An evaluation device for the effect of a heavy oil viscosity reducer according to claim 9, characterized in that: The upper part of the through hole located on the upper side is connected to the lower part of the accommodating groove. A transparent plate is embedded on the outer side wall of the experimental tube. Both the experimental tube and the transparent plate are arranged in a spiral structure. The cross section of the experimental tube is in a three-quarter circular ring structure. The cross section of the transparent plate is in a quarter circular ring structure.

11. An evaluation device for the effect of heavy oil viscosity reducer according to claim 10, characterized in that: A connecting hole is opened at the position of the top surface of the baffle relative to the front side of the through hole. The diameter of the through hole is adapted to the diameter of the connecting hole. A square groove is opened on the front wall of the support plate relative to the position of the baffle. The rear end of the baffle passes through the square groove and extends to the rear part and is in sliding fit with the square groove. A pull plate is fixed between the rear ends of the baffles on the same side. The front wall of the pull plate is in clearance fit with the rear wall of the support plate.

12. An evaluation device for the effect of heavy oil viscosity reducer according to claim 11, characterized in that: The front wall of the pull plate is in clearance fit with the rear wall of the support plate. A guide groove is opened on the top surface of the base relative to the positions below the plurality of bottom plates. The bottom surface of the guide groove is in an inclined structure with a higher left side and a lower right side.

13. The method for evaluating the effect of a heavy oil viscosity reducer according to any one of claims 1-12, characterized in that, Including the following steps: S1. The staff can first insert the connector along the upper opening end of the round tube. Initially, under the extrusion effect of the inner wall of the limit groove, the side plate will undergo elastic deformation and deflect outwards. Subsequently, under the guiding action of the limit block and the limit groove, the clamping block and the clamping groove will be quickly clamped. At this time, the lower end of the connector will push the partition plate into the lower part of the bottom groove, and at the same time, the tension spring will also be stretched. In this way, the inside of the front metal hose is connected to the inside of the bottom groove through the connector; S2. After that, the staff needs to extract heavy oil and viscosity reducer through the rear metal hose via the heavy oil pump and the viscosity reducer pump respectively. The heavy oil and viscosity reducer can flow out from the through holes opened on both sides of the connector and flow into the bottom groove, thereby avoiding the blockage of the opening end of the connector by the partition plate. As the heavy oil and viscosity reducer are poured in, the piston will gradually be lifted, and the staff can clearly observe the injection amounts of the two from the glass plate in cooperation with the scale block; S3. After injecting sufficient heavy oil and viscosity reducer, the staff can first calculate the different amounts required for various mixing ratio schemes in the evaluation experiments of the two according to the mixing ratio requirements. Then, the lower opening end of the three-way pipe is sequentially corresponded to multiple evaluation components, and by rotating the dial plate, the axis drives the opening and closing block to rotate and open the connecting groove. The heavy oil and viscosity reducer will flow down along both sides of the three-way pipe respectively. The vertical plate can prevent the two from mixing in the three-way pipe and avoid affecting the subsequent evaluation results. During this process, the staff can judge the injected amount by the change of the scale block corresponding to the liquid level. Then, by using this method in cooperation with the sliding of the slider on the bottom surface of the moving seat and the chute, different mixtures with sufficient amounts of different mixing ratios can be injected into each evaluation component. When the heavy oil and viscosity reducer enter the bottom output interface of the three-way pipe and enter the receiving groove, they first touch the triangular pyramid and are evenly dispersed to various positions in the groove body of the receiving groove by the triangular pyramid, thus realizing the uniform mixing of the heavy oil and viscosity reducer; S4. When the receiving groove in each evaluation component is filled with sufficient mixture, the staff can first pull the two side lever rods back to their original positions so that the opening and closing block seals the connecting groove again to prevent the leakage of heavy oil and viscosity reducer and cause waste. Then, the staff can pull the upper pull plate backward from the rear. In this way, the multiple upper baffles will slide backward along the plate groove and the square groove. When the position of the baffle moves to the last end of the movable range, the connecting hole on it will communicate with the through hole, and then the heavy oil viscosity reducer mixture in the receiving groove will flow into the experimental tube along the connecting hole and the through hole; S5. Since the experimental tube is arranged in a spiral structure, the path of the heavy oil viscosity reducer mixture flowing spirally downward inside it will be extremely long. In this way, the staff can accurately observe the flow rates of mixtures with various different mixing ratios through the transparent plate, thereby facilitating and quickly evaluating the effects of the viscosity reducer for multiple experimental groups. Moreover, such a structure also enhances the comparability, making it more convenient for the staff to judge a more reasonable mixing ratio among multiple experimental groups and enabling them to narrow the experimental range faster and better; S6. After the experiment is completed, the staff can pull the baffle in the rear board slot of the bottom plate in the same way by using the lower pull plate. Subsequently, the experimental objects in multiple evaluation components will collectively flow into the guide groove opened on the top surface of the base. Under the guidance of its bottom surface, these discarded experimental objects will be concentrated together on the right side, facilitating the subsequent cleaning work of the staff.

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