Crude oil viscosity reducer production quality detection equipment

Abstract

The invention relates to the technical field of viscosity monitoring, in particular to crude oil viscosity reducer production quality detection equipment which comprises a crude oil conveying pipe used for conveying crude oil and further comprises a spiral conveying agent winding pipe which is wound on the outer surface of the crude oil conveying pipe and used for conveying a viscosity reducer into the crude oil conveying pipe. A plurality of injection pipes communicated with the crude oil conveying pipe are arranged on the inner wall of the crude oil conveying pipe in a staggered mode, a plurality of ultrasonic viscometers used for detecting the viscosity of crude oil are arranged on the outer surface of the crude oil conveying pipe, and the ultrasonic viscometers and the spiral conveying agent winding pipe are arranged in a staggered mode; the rotary spiral scraping pipe is attached to the inner wall of the crude oil conveying pipe in a spiral shape, a pushing assembly used for driving the rotary spiral scraping pipe to rotate so as to convey crude oil to flow is arranged in the crude oil conveying pipe, and a plurality of connecting rods capable of being connected with the pushing assembly are connected into the rotary spiral scraping pipe and used for transmission.

Description

Technical Field

[0001] This invention relates to the field of viscosity monitoring technology, specifically to a quality testing device for crude oil viscosity reducer production. Background Technology

[0002] With the continuous development and utilization of global oil resources, the proportion of heavy oil resources is gradually increasing. Heavy oil is characterized by high viscosity and poor fluidity, posing significant challenges to its extraction and transportation. Traditional methods for heavy oil extraction and transportation, such as steam injection and electric heating, suffer from high energy consumption, high costs, and poor adaptability to deep oil reservoirs. The application of crude oil viscosity reducers provides an effective solution to these problems. Through physical or chemical interactions with crude oil, crude oil viscosity reducers can significantly reduce its viscosity and improve its fluidity, enabling heavy oil to be extracted more smoothly from oil reservoirs and transported over long distances via pipelines. Currently, crude oil viscosity reducers are widely used in major oilfields both domestically and internationally, becoming indispensable chemical additives in the extraction and transportation of heavy oil. The quality of crude oil viscosity reducers directly affects their effectiveness in reducing crude oil viscosity. If the viscosity reducer is substandard, it may result in poor dispersibility and insufficient stability in crude oil, failing to effectively reduce crude oil viscosity, thereby affecting the efficiency of heavy oil extraction and transportation and increasing production costs. Therefore, rigorous quality testing of the crude oil viscosity reducer production process to ensure that the product quality meets the standard requirements is a key step in guaranteeing its application effect.

[0003] For example, patent document CN207036608U discloses a device for evaluating the effect of a heavy oil viscosity reducer. The device includes an operating platform with a rectangular structure. A rectangular groove is formed on one side of the top of the platform, and a waste liquid collection box is installed at the bottom of the groove. A drain pipe is connected to the side of the waste liquid collection box, and a shut-off valve is installed on a section of the drain pipe. A storage box is installed on the side of the groove, and a spray device and cleaning tools are installed inside the storage box. A door is installed on the side of the storage box, and a clamping frame is installed on the side of the storage box opposite to the door. A measuring device is installed on the clamping frame, including a measuring cup, a ball valve, and a measuring tube. The bottom of the measuring cup is connected to the measuring tube, and a ball valve is installed on a section of the measuring tube. A camera is installed on the inner wall of the groove, and a computer is installed on the top of the operating platform. This invention allows for more precise imaging of the flow of the heavy oil viscosity reducer using a camera, and the operation is very convenient.

[0004] While existing technologies utilize cameras to visualize the flow state of heavy oil viscosity reducers for indirect evaluation of their viscosity-reducing effects, significant limitations exist in practical applications. The mixing reaction between the viscosity reducer and crude oil is a continuous and dynamically evolving physicochemical process, exhibiting nonlinear evolution in its dispersibility, emulsification degree, and viscosity changes over different time periods. Cameras can only capture the macroscopic flow morphology of the fluid surface, failing to penetrate the oil phase to obtain information on internal mixing uniformity, microscopic dispersion, and real-time viscosity gradients. Furthermore, it is difficult to quantify the effective release and efficacy of the agent at each stage of the flow process. Especially in highly viscous, opaque crude oil environments, visual monitoring is easily interfered with by factors such as light, bubbles, and pipe wall deposits, leading to blurred images or misjudgments. Therefore, relying solely on camera methods makes it difficult to accurately assess the continuity, stability, and repeatability of the viscosity reducer's action process, easily resulting in delayed or distorted quality judgments, failing to meet the needs of refined process control. To address this, this application proposes a crude oil viscosity reducer production quality testing device. Summary of the Invention

[0005] The purpose of this invention is to provide a quality testing device for crude oil viscosity reducer production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a crude oil viscosity reducer production quality testing device, comprising a crude oil pipeline for transporting crude oil, and further comprising:

[0007] The spiral delivery tube is coiled on the outer surface of the crude oil pipeline to deliver the viscosity reducer into the interior of the crude oil pipeline. Multiple injection tubes communicating with the crude oil pipeline are staggered on its inner wall. Multiple ultrasonic viscometers for detecting the viscosity of crude oil are installed on the outer surface of the crude oil pipeline. The multiple ultrasonic viscometers are staggered with the spiral delivery tube.

[0008] A rotating spiral scraper is attached to the inner wall of the crude oil pipeline in a spiral shape. The crude oil pipeline is equipped with a pushing component for driving the rotating spiral scraper to rotate and transport crude oil. The rotating spiral scraper is connected to multiple connecting rods that can be connected to the pushing component for transmission.

[0009] A bend is provided on one side of multiple connecting rods and its outer surface is connected to an arc pressure plate for contacting crude oil. The connecting rods are equipped with a feedback component for monitoring the position of the bend. A straight cylinder is provided on one side of the bend, and agitators are provided at both ends of the straight cylinder. The straight cylinder is equipped with a feedback component for monitoring the bending angle of the arc pressure plate, and the feedback component is used to drive the agitators to rotate according to the viscosity of the fluid.

[0010] Preferably, the pushing component includes a transmission rod disposed inside the crude oil pipeline, and the transmission rod is fixedly connected to multiple connecting rods. A bearing bracket for supporting the rotation of the transmission rod is fixedly connected inside the crude oil pipeline. A driven bevel gear is fixedly connected to one end of the transmission rod. A drive motor is fixedly connected to the bottom of the crude oil pipeline. The output end of the drive motor extends into the interior of the crude oil pipeline and is fixedly connected to a driving bevel gear that meshes with the driven bevel gear.

[0011] Preferably, the feedback component includes a straight rod rotatably connected inside the connecting rod, and the straight rod is fixedly connected to the bent tube. A pressing plate is fixedly connected to the top of the straight rod, and a button adapted to the pressing plate is fixedly connected inside the connecting rod.

[0012] Preferably, the feedback component includes a pressure handle rotatably connected to the surface of the straight cylinder, and the pressure handle is rotatably connected to the arc pressure plate. Inside the straight cylinder, a rocker arm connected to the pressure handle is rotatably connected, and one end of the rocker arm is fixedly connected to a ball bearing. A connecting rod is fixedly connected to one side of the ball bearing. The connecting rod passes through the straight cylinder and is fixedly connected to a transmission plate. A transmission mechanism that cooperates with the transmission plate to drive the agitator blade to rotate is provided on one side of the straight cylinder.

[0013] Preferably, the transmission mechanism includes a limiting shell fixedly connected to one side of the straight cylinder, a rotating shaft fixedly connected to the stirring blade is provided inside the limiting shell, and a transmission plate is fixedly connected to the rotating shaft. A spiral groove is provided on the outer surface of the rotating shaft, and a guide bead is slidably connected to the spiral groove inside the limiting shell.

[0014] Preferably, the inside of the straight cylinder is provided with a set screw groove and a guide rod that cooperate with each other, and the set screw groove and the guide rod are respectively fixedly connected to one side of the ball sheet.

[0015] Preferably, a groove is provided on one side of the rotating spiral scraper tube, and an auxiliary spiral tube is provided in the groove, with one end of the bent tube fixedly connected to the auxiliary spiral tube.

[0016] Preferably, one side of the auxiliary spiral tube is fixedly connected with a plurality of springs that are fixedly connected to the groove.

[0017] Preferably, a torsion spring for driving the straight rod to return to its original position is sleeved at the connection between the straight rod and the connecting rod, and the straight cylinder is fixedly connected to the straight rod.

[0018] Preferably, one end of the crude oil pipeline is configured as an inlet for crude oil to enter, and the other end is configured as an outlet for crude oil to exit. A pump for driving crude oil transportation is installed near the inlet of the crude oil pipeline, and a vibratory viscometer for detecting the viscosity of crude oil is installed near the outlet of the crude oil pipeline.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The spiral structure, coiled around the outer surface of the crude oil pipeline, allows the viscosity reducer to enter the pipeline from multiple points. Compared to single-point delivery, multi-point staggered delivery of the viscosity reducer enables more uniform dispersion in the crude oil, significantly improving the mixing efficiency between the viscosity reducer and the crude oil. This avoids the concentration of viscosity reducer that may occur with single-point delivery, resulting in more thorough mixing and better reduction of crude oil viscosity. The spiral delivery system features multiple injection pipes connected to the crude oil pipeline, arranged in a staggered pattern around the inner wall. These injection pipes serve as channels for the viscosity reducer to enter the pipeline, and their staggered distribution further ensures that the viscosity reducer can be injected into the crude oil from different directions and positions, enhancing the uniformity of mixing and contributing to improved viscosity reduction. The spiral shape adheres to the crude oil... During crude oil transportation, the spiral shape of the inner wall of the pipeline generates a driving force, further promoting the flow of crude oil within the pipeline. When rotated under the drive of the pushing component, its spiral structure can propel the crude oil forward like a screw pump, enhancing the transportation capacity. At the same time, it generates shearing and disturbance effects on the fluid, breaking the laminar flow state, strengthening the micro-mixing of viscosity reducer and crude oil, and shortening the mixing time. Through the integrated design of multi-point addition, segmented detection, spiral stirring and conveying, and dynamic wall scraping and cleaning, it not only improves the mixing efficiency and uniformity of crude oil and viscosity reducer, but also realizes online quality monitoring and equipment self-maintenance.

[0021] 2. When the bend comes into contact with crude oil, it can directly sense the resistance of the crude oil. The arc pressure plate further increases the contact area with the crude oil. Under high viscosity conditions, the bend and the arc pressure plate will be squeezed. This squeezing action provides a physical basis for subsequent crude oil viscosity testing, and can intuitively reflect the resistance of crude oil to the components at different stages, thus indirectly reflecting the crude oil viscosity. The bend is connected to the auxiliary spiral tube, which can transfer the crude oil resistance to the auxiliary spiral tube, so that the entire structure forms a coordinated whole when dealing with crude oil resistance, enhancing the responsiveness to changes in crude oil state. The straight cylinder provides installation space for the internal feedback component, and at the same time serves as a support structure for the agitator blade, allowing the agitator blade to be stably installed in a suitable position. The agitator blade can rotate under the drive of the feedback component, which can accelerate the mixing of crude oil and viscosity reducer. During crude oil transportation, the rotation of the agitator blades can break up any localized unevenness that may form between the crude oil and the viscosity reducer, allowing them to fully contact and blend, improving mixing efficiency, and ensuring that the viscosity reducer can play a better role in reducing crude oil viscosity. The torsion spring enables the straight rod to rotate under resistance and quickly return to its initial state when the resistance decreases or disappears, ensuring that the pressing plate can accurately reconnect with the button, allowing the feedback component to work continuously and stably, and providing reliable electrical signal feedback for detecting crude oil viscosity. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the exploded structure of the spiral infusion pipe and the crude oil pipeline in this invention;

[0024] Figure 3 This is a schematic cross-sectional view of the crude oil pipeline in this invention;

[0025] Figure 4 This is a schematic diagram of the structure for removing the crude oil pipeline in this invention;

[0026] Figure 5 This is a partial structural schematic diagram of the rotating spiral scraper in this invention;

[0027] Figure 6 This is a schematic diagram of the connecting rod in this invention;

[0028] Figure 7 This is a schematic cross-sectional view of the connecting rod in this invention;

[0029] Figure 8 This is a schematic diagram of the bent pipe structure in this invention;

[0030] Figure 9 This is a schematic cross-sectional view of the straight cylinder in this invention;

[0031] Figure 10 This is a schematic diagram of the structure of the guide rod and the set screw groove in this invention;

[0032] Figure 11 For the present invention Figure 10 A magnified schematic diagram of the structure at point A in the middle.

[0033] In the diagram: 100, crude oil pipeline; 101, oil pump; 102, vibratory viscometer; 103, ultrasonic viscometer; 200, spiral infusion tube; 201, injection tube; 300, rotating spiral scraper; 301, transmission rod; 302, driven bevel gear; 303, driving bevel gear; 304, drive motor; 305, bearing bracket; 306, connecting rod; 307, auxiliary spiral tube; 308. 400. Spring; 401. Bend; 402. Arc pressure plate; 403. Straight rod; 404. Stirring blade; 405. Torsion spring; 406. Pressing plate; 407. Button; 408. Straight cylinder; 409. Press handle; 410. Rocker arm; 411. Guide rod; 412. Top screw groove; 413. Connecting rod; 414. Ball bearing; 415. Transmission plate; 416. Limiting shell; 417. Rotating shaft; 418. Spiral groove. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 - Figure 11 The present invention provides a technical solution: a crude oil viscosity reducer production quality testing device, including a crude oil pipeline 100 for transporting crude oil. One end of the crude oil pipeline 100 is configured as an inlet for crude oil to enter, and the other end is configured as an outlet for crude oil to exit. An oil pump 101 for driving crude oil transport is installed near the inlet of the crude oil pipeline 100, and a vibrating viscometer 102 for detecting the viscosity of crude oil is installed near the outlet of the crude oil pipeline 100. By setting the oil pump 101, the crude oil flow can be effectively transported to overcome its initial high viscosity, while the vibrating viscometer 102 can be used to detect the viscosity of crude oil and viscosity reducer after complete mixing.

[0036] It also includes a spiral delivery tube 200, which is coiled on the outer surface of the crude oil pipeline 100 to deliver the viscosity reducer into the interior of the crude oil pipeline 100. Multiple injection tubes 201 communicating with the crude oil pipeline 100 are staggered on its inner wall. Multiple ultrasonic viscometers 103 for detecting the viscosity of crude oil are provided on the outer surface of the crude oil pipeline 100. The multiple ultrasonic viscometers 103 are staggered with the spiral delivery tube 200. By setting the spiral delivery tube 200 to coil on the surface of the crude oil pipeline 100, multiple inlets for delivering the viscosity reducer can be set, thereby staggering the delivery of the viscosity reducer to improve its mixing efficiency with crude oil and avoiding the concentration of single-point delivery.

[0037] It also includes a rotating spiral scraper 300, which is spirally attached to the inner wall of the crude oil pipeline 100. The crude oil pipeline 100 is equipped with a pusher assembly for driving the rotating spiral scraper 300 to rotate and transport crude oil. The rotating spiral scraper 300 is connected to multiple connecting rods 306 that can be connected to the pusher assembly for transmission. By setting the rotating spiral scraper 300 to further transport crude oil and stir it, it can also clean the inner wall of the crude oil pipeline 100 in cooperation with the pusher assembly.

[0038] Furthermore, the pushing component includes a transmission rod 301 disposed inside the crude oil pipeline 100, and the transmission rod 301 is fixedly connected to multiple connecting rods 306. A bearing bracket 305 for supporting the rotation of the transmission rod 301 is fixedly connected inside the crude oil pipeline 100. A driven bevel gear 302 is fixedly connected to one end of the transmission rod 301. A drive motor 304 is fixedly connected to the bottom of the crude oil pipeline 100. The output end of the drive motor 304 extends into the interior of the crude oil pipeline 100 and is fixedly connected to a driving bevel gear 303 that meshes with the driven bevel gear 302. By setting the meshing of the driving bevel gear 303 and the driven bevel gear 302, the transmission rod 301 can be effectively driven to rotate. Under the action of the connecting rods 306, the spiral scraper 300 can be rotated, which can improve the stirring efficiency.

[0039] The rotating spiral scraper 300 has a groove on one side, and an auxiliary spiral tube 307 is installed in the groove. A plurality of springs 308 are fixedly connected to one side of the auxiliary spiral tube 307 and fixedly connected to the groove. By setting the auxiliary spiral tube 307, it can first come into contact with the crude oil, thereby scraping the crude oil to roll and come into contact with the rotating spiral scraper 300 again, while improving the fit with the inner wall of the crude oil pipeline 100.

[0040] Specifically, during use, crude oil is first introduced into the crude oil pipeline 100 and driven by the oil pump 101 to be transported within the crude oil pipeline 100. Multiple ultrasonic viscometers 103 detect the viscosity of the crude oil at each stage within the crude oil pipeline 100. The viscosity reducer is introduced into the spiral delivery pipe 200 and transported through multiple injection pipes 201 to the inside of the crude oil pipeline 100 to mix with the crude oil. Then, the drive motor 304 is operated to drive the active bevel gear 303 to rotate, so that it meshes with the driven bevel gear 302, thereby driving the transmission rod 301 to rotate. This, in turn, drives the rotating spiral scraper 300 to rotate along the inner wall of the crude oil pipeline 100, realizing the transportation of crude oil and improving the mixing efficiency of the viscosity reducer and crude oil. When the rotating spiral scraper 300 rotates, it will continuously rub against the crude oil.

[0041] In summary, the spiral structure surrounding the outer surface of the crude oil pipeline 100 allows the viscosity reducer to enter the pipeline 100 through multiple points. Compared to single-point delivery, multi-point staggered delivery of the viscosity reducer enables more uniform dispersion of the viscosity reducer in the crude oil, significantly improving the mixing efficiency between the viscosity reducer and the crude oil. This avoids the concentration of viscosity reducer that may occur with single-point delivery, resulting in more thorough mixing and better reduction of crude oil viscosity. Multiple injection pipes 201, staggered and connected to the crude oil pipeline 100, are arranged around the inner wall of the spiral delivery pipe 200. These injection pipes 201 serve as channels for the viscosity reducer to enter the crude oil pipeline 100, and their staggered distribution further ensures that the viscosity reducer can be injected into the crude oil from different directions and positions, enhancing the uniformity of mixing and contributing to improved viscosity reduction. Fitting the inner wall of the crude oil pipeline 100, its spiral shape generates a driving force during crude oil transportation, further promoting the flow of crude oil within the pipeline 100. When rotated under the drive of the pushing component, its spiral structure can propel the crude oil forward like a screw pump, enhancing the transportation capacity. At the same time, it generates shearing and disturbance effects on the fluid, breaking the laminar flow state, strengthening the micro-mixing of the viscosity reducer and crude oil, and shortening the mixing time. Through the integrated design of multi-point addition, segmented detection, spiral stirring and conveying, and dynamic wall scraping and cleaning, it not only improves the mixing efficiency and uniformity of crude oil and viscosity reducer, but also realizes online quality monitoring and equipment self-maintenance.

[0042] Example 2: Please refer to Figure 1 - Figure 11 The present invention also provides a technical solution, which differs from the technical solution of Embodiment 1 as follows: a crude oil viscosity reducer production quality testing device, further comprising a bent pipe 400, which is disposed on one side of a plurality of connecting rods 306 and has an arc pressure plate 401 for contacting crude oil connected to its outer surface. One end of the bent pipe 400 is fixedly connected to an auxiliary spiral pipe 307. A feedback component for monitoring the position of the bent pipe 400 is disposed inside the connecting rods 306, and a straight cylinder 407 is disposed on one side of the bent pipe 400. Agitator blades 403 are disposed at both ends of the straight cylinder 407. The straight cylinder 407 is internally configured with... There is a feedback component that monitors the bending angle of the arc pressure plate 401. The feedback component is used to drive the agitator 403 to rotate according to the viscosity of the fluid. By setting the feedback component, feedback can be provided according to the resistance of the bend 400, thereby detecting the viscosity of crude oil at each stage. At the same time, in cooperation with the feedback component, the agitator 403 can be driven to rotate to accelerate the mixing efficiency of crude oil and viscosity reducer. If the viscosity is still high when multiple agitators 403 are agitated, it means that the viscosity reducer is not effective. At the same time, the feedback component can determine whether the viscosity reducer has played its role.

[0043] The feedback component includes a straight rod 402 rotatably connected inside the connecting rod 306, and the straight rod 402 is fixedly connected to the bend 400. A pressing piece 405 is fixedly connected to the top of the straight rod 402. A button 406 adapted to the pressing piece 405 is fixedly connected inside the connecting rod 306. A torsion spring 404 for driving the straight rod 402 to reset is sleeved at the connection between the straight rod 402 and the connecting rod 306. A straight cylinder 407 is fixedly connected to the straight rod 402. By setting the torsion spring 404, the straight rod 402 can be reset, so that it returns to its initial state for the pressing piece 405 and the button 406 to connect. In the initial state, the pressing piece 405 and the button 406 abut against each other to realize the connection of electrical signals. As the crude oil is transported, the transmission bend 400 is displaced, causing the straight rod 402 to rotate, so that the pressing piece 405 moves away from the button 406 and disengages from the abutment, thus realizing the connection.

[0044] Furthermore, the feedback component includes a pressure handle 408 rotatably connected to the surface of the straight cylinder 407, and the pressure handle 408 is rotatably connected to the arc pressure plate 401. Inside the straight cylinder 407, a rocker arm 409 connected to the pressure handle 408 is rotatably connected, and one end of the rocker arm 409 is fixedly connected to a ball bearing 413. A connecting rod 412 is fixedly connected to one side of the ball bearing 413. The connecting rod 412 passes through the straight cylinder 407 and is fixedly connected to a transmission plate 414. A transmission mechanism that cooperates with the transmission plate 414 to drive the agitator blade 403 to rotate is provided on one side of the straight cylinder 407. By setting the arc pressure plate 401, it can drive the bend tube 400 to move while bending itself when it is subjected to resistance. When the arc pressure plate 401 bends, it pries one end of the transmission pressure handle 408 to move the rocker arm 409, causing the ball bearing 413 to move, thereby driving the transmission mechanism to run and causing the agitator blade 403 to agitate and mix the crude oil.

[0045] The transmission mechanism includes a limiting shell 415 fixedly connected to one side of the straight cylinder 407. Inside the limiting shell 415 is a rotating shaft 416 fixedly connected to the stirring blade 403. A transmission plate 414 is fixedly connected to the rotating shaft 416. A spiral groove 417 is formed on the outer surface of the rotating shaft 416. Inside the limiting shell 415 are guide beads slidably connected to the spiral groove 417. Inside the straight cylinder 407 are mating screw grooves 411 and guide rods 410, which are respectively fixedly connected. The ball bearing plate 401 is fixedly connected to one side of the ball bearing plate 413. When the arc pressure plate 401 encounters resistance, it moves slightly and disengages from the crude oil to reset, thus obtaining a repositioning force. This force acts on the pressure handle 408, causing its drive shaft 416 to move back and forth. This, in turn, causes the guide ball in the limiting shell 415 to cooperate with the spiral groove 417 to drive the agitator 403 to rotate and stir. When the arc pressure plate 401 encounters strong resistance, it will continuously bend, causing the guide rod 410 and the set screw groove 411 to move closer together to achieve the transmission of electrical signals, thereby supplying power.

[0046] It is worth mentioning that the feedback and recirculation components are continuously arranged along the direction of crude oil flow. This allows the effectiveness of the viscosity reducer to be determined by tracking the crude oil flow time, mixing time with the viscosity reducer, and dosage. The feedback and recirculation components at the initial position will inevitably operate because the initial viscosity of the crude oil is very high. As the crude oil flows and mixes, if the subsequent feedback and recirculation components operate, it indicates that the viscosity reducer effect is not good. If the subsequent feedback and recirculation components operate less, it indicates that the viscosity reducer effect is acceptable.

[0047] Specifically, when the rotating spiral scraper 300 rotates, it continuously contacts the crude oil. The bent tube 400, in contact with the crude oil, experiences resistance due to its high viscosity, causing it to compress the auxiliary spiral tube 307. Simultaneously, this moves one end of the straight rod 402, disengaging the pressing plate 405 from the button 406, thus enabling the terminal transmission of electrical signals. At the same time, when the arc pressure plate 401 encounters resistance, it also bends, causing one end of the pressure handle 408 to move downwards. This, in turn, moves one end of the pry bar 409, pushing the guide rod 410 and the set screw groove 411 closer together, achieving electrical conductivity. The close proximity of the guide rod 410 and the set screw groove 411 indicates a higher viscosity of the crude oil. Furthermore, whenever the arc pressure plate 401 is affected by the viscosity of the crude oil... When bending, the transmission connecting rod 412 moves, thereby pulling the transmission plate 414 to move, which in turn pushes the rotating shaft 416 to move inside the limiting shell 415. At this time, the guide ball in the limiting shell 415 will be driven to rotate in the spiral groove 417 during movement, thereby driving the stirring blade 403 to move and rotate at the same time, thus stirring the crude oil and accelerating its mixing with the viscosity reducer. Under the action of the stirring blade 403 and the rotating spiral scraper 300, the mixing of the viscosity reducer and crude oil will be accelerated, so that it exhibits different viscosity changes at different time periods, which is convenient for analyzing the quality of the viscosity reducer. Finally, after the viscosity reducer and crude oil are mixed, they are discharged after being detected by the vibratory viscometer 102. The viscosity of the crude oil detected by the vibratory viscometer 102 is used to analyze the final effect of the viscosity reducer.

[0048] In summary, the bend 400 directly senses the resistance of crude oil when in contact with it. The arc pressure plate 401 further increases the contact area with the crude oil. Under high viscosity conditions, the bend 400 and the arc pressure plate 401 are compressed. This compression provides a physical basis for subsequent crude oil viscosity testing, directly reflecting the resistance of crude oil to the components at different stages, thus indirectly reflecting the crude oil viscosity. The bend 400 is connected to the auxiliary spiral tube 307, which can transmit the crude oil resistance to the auxiliary spiral tube 307, making the entire structure a coordinated whole when dealing with crude oil resistance, enhancing the responsiveness to changes in crude oil state. The straight cylinder 407 provides installation space for the internal feedback components and also serves as a support structure for the agitator 403, allowing the agitator 403 to be stably installed in a suitable position. Driven by the feedback components, the agitator 403 can rotate, accelerating the mixing of crude oil and viscosity reducer. During crude oil transportation, the rotation of the agitator 403 can break the local unevenness that may form between crude oil and viscosity reducer, allowing them to fully contact and blend, improving mixing efficiency, ensuring that the viscosity reducer can play a better role, and reducing crude oil viscosity. The torsion spring 404 enables the straight rod 402 to quickly return to its initial state after rotating under resistance, when the resistance decreases or disappears, ensuring that the pressing plate 405 can accurately connect with the button 406 again, so that the feedback component can work continuously and stably, providing reliable electrical signal feedback for detecting crude oil viscosity.

[0049] Working principle: During operation, crude oil is first introduced into the crude oil pipeline 100 and then transported within it by the oil pump 101. Multiple ultrasonic viscometers 103 detect the viscosity of the crude oil at each stage within the pipeline 100. A viscosity-reducing agent is introduced into the spiral delivery pipe 200 and transported through multiple injection pipes 201 to the inside of the crude oil pipeline 100 to mix with the crude oil.

[0050] Subsequently, the drive motor 304 is operated to drive the active bevel gear 303 to rotate, so that it meshes with the driven bevel gear 302, thereby driving the transmission rod 301 to rotate, which in turn drives the rotating spiral scraper 300 to rotate along the inner wall of the crude oil pipeline 100, realizing the transportation of crude oil and improving the mixing efficiency of the viscosity reducer and crude oil. When the rotating spiral scraper 300 rotates, it will continuously come into contact with the crude oil. The bent pipe 400 will be subject to certain resistance when it comes into contact with the crude oil due to its high viscosity, causing it to be squeezed by the auxiliary spiral pipe 307. At the same time, it drives one end of the straight rod 402 to move, so that the pressing plate 405 and the button 406 are disengaged, realizing the terminal transmission of electrical signals.

[0051] Simultaneously, when the arc pressure plate 401 encounters resistance, it bends, causing one end of the pressure handle 408 to move downwards. This, in turn, moves one end of the pry bar 409, pushing the guide rod 410 and the set screw groove 411 closer together to achieve electrical conductivity. The close proximity of the guide rod 410 and the set screw groove 411 indicates that the crude oil viscosity is high. Furthermore, whenever the arc pressure plate 401 bends due to the crude oil viscosity, it moves the transmission connecting rod 412, which in turn pulls the transmission plate 414, causing the rotating shaft 416 to move inside the limiting shell 415. At this time, the guide beads inside the limiting shell 415 will rotate within the spiral groove 417 during movement, thereby causing the stirring blade 403 to move and rotate simultaneously, thus agitating the crude oil and accelerating its mixing with the viscosity reducer.

[0052] The mixing of the viscosity reducer and crude oil is accelerated by the stirring blade 403 and the rotating spiral scraper 300, so that it exhibits different viscosity changes at different time periods, which facilitates the analysis of the quality of the viscosity reducer. Finally, the viscosity reducer and crude oil are mixed and discharged after being detected by the vibratory viscometer 102. The viscosity of the crude oil is analyzed by the vibratory viscometer 102 to determine the final effect of the viscosity reducer.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quality testing device for crude oil viscosity reducer production, comprising a crude oil pipeline (100) for transporting crude oil, characterized in that, Also includes: A spiral delivery tube (200) is coiled on the outer surface of the crude oil pipeline (100) to deliver a viscosity reducer into the interior of the crude oil pipeline (100). Multiple injection tubes (201) communicating with the crude oil pipeline (100) are staggered on its inner wall. Multiple ultrasonic viscometers (103) for detecting the viscosity of crude oil are provided on the outer surface of the crude oil pipeline (100). The multiple ultrasonic viscometers (103) are staggered with the spiral delivery tube (200). A rotating spiral scraper (300) is attached to the inner wall of the crude oil pipeline (100) in a spiral shape. The crude oil pipeline (100) is provided with a push assembly for driving the rotating spiral scraper (300) to rotate and transport crude oil flow. The rotating spiral scraper (300) is connected to a plurality of connecting rods (306) that can be connected to the push assembly for transmission. A bend (400) is disposed on one side of a plurality of connecting rods (306) and its outer surface is connected to an arc pressure plate (401) for contacting crude oil. The connecting rods (306) are provided with a feedback component for monitoring the position of the bend (400). A straight cylinder (407) is disposed on one side of the bend (400), and agitators (403) are disposed at both ends of the straight cylinder (407). A feedback component for monitoring the bending angle of the arc pressure plate (401) is disposed inside the straight cylinder (407), and the feedback component is used to drive the agitators (403) to rotate according to the viscosity of the fluid.

2. The crude oil viscosity reducer production quality testing equipment according to claim 1, characterized in that: The pushing component includes a transmission rod (301) disposed inside the crude oil pipeline (100), and the transmission rod (301) is fixedly connected to a plurality of connecting rods (306). A bearing bracket (305) for supporting the rotation of the transmission rod (301) is fixedly connected inside the crude oil pipeline (100). A driven bevel gear (302) is fixedly connected to one end of the transmission rod (301). A drive motor (304) is fixedly connected to the bottom of the crude oil pipeline (100). The output end of the drive motor (304) extends into the interior of the crude oil pipeline (100) and is fixedly connected to a driving bevel gear (303) that meshes with the driven bevel gear (302).

3. The crude oil viscosity reducer production quality testing equipment according to claim 1, characterized in that: The feedback component includes a straight rod (402) rotatably connected inside the connecting rod (306), and the straight rod (402) is fixedly connected to the bend (400). A pressing piece (405) is fixedly connected to the top of the straight rod (402), and a button (406) adapted to the pressing piece (405) is fixedly connected inside the connecting rod (306).

4. The crude oil viscosity reducer production quality testing equipment according to claim 1, characterized in that: The feedback component includes a pressure handle (408) rotatably connected to the surface of the straight cylinder (407), and the pressure handle (408) is rotatably connected to the arc pressure plate (401). Inside the straight cylinder (407), a rocker arm (409) connected to the pressure handle (408) is rotatably connected. One end of the rocker arm (409) is fixedly connected to a ball bearing (413), and one side of the ball bearing (413) is fixedly connected to a connecting rod (412). The connecting rod (412) passes through the straight cylinder (407) and is fixedly connected to a transmission plate (414). One side of the straight cylinder (407) is provided with a transmission mechanism that cooperates with the transmission plate (414) to drive the agitator (403) to rotate.

5. The crude oil viscosity reducer production quality testing equipment according to claim 4, characterized in that: The transmission mechanism includes a limiting shell (415) fixedly connected to one side of the straight cylinder (407). The limiting shell (415) is provided with a rotating shaft (416) fixedly connected to the stirring blade (403). The transmission plate (414) is fixedly connected to the rotating shaft (416). The outer surface of the rotating shaft (416) is provided with a spiral groove (417). The limiting shell (415) is provided with a guide bead slidably connected in the spiral groove (417).

6. The crude oil viscosity reducer production quality testing equipment according to claim 4, characterized in that: The inside of the straight cylinder (407) is provided with a set screw groove (411) and a guide rod (410) that cooperate with each other, and the set screw groove (411) and the guide rod (410) are respectively fixedly connected to one side of the ball sheet (413).

7. The crude oil viscosity reducer production quality testing equipment according to claim 1, characterized in that: A groove is provided on one side of the rotating spiral scraper (300), and an auxiliary spiral tube (307) is provided in the groove. One end of the bent tube (400) is fixedly connected to the auxiliary spiral tube (307).

8. The crude oil viscosity reducer production quality testing equipment according to claim 7, characterized in that: The auxiliary spiral tube (307) is fixedly connected to one side with a plurality of springs (308) that are fixedly connected to the groove.

9. The crude oil viscosity reducer production quality testing equipment according to claim 3, characterized in that: A torsion spring (404) for driving the straight rod (402) to reset is sleeved at the connection between the straight rod (402) and the connecting rod (306), and the straight cylinder (407) is fixedly connected to the straight rod (402).

10. The crude oil viscosity reducer production quality testing equipment according to claim 1, characterized in that: One end of the crude oil pipeline (100) is configured as an inlet for crude oil to enter, and the other end is configured as an outlet for crude oil to exit. A pump (101) for driving crude oil transportation is installed near the inlet of the crude oil pipeline (100), and a vibratory viscometer (102) for detecting the viscosity of crude oil is installed near the outlet of the crude oil pipeline (100).

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