Online sampling device for high-viscosity oil

Abstract

The utility model relates to the technical field of oil delivery online detection, in particular to a high-viscosity oil online sampling device which comprises a mounting plate, a supporting plate is connected to the middle of the top end of the mounting plate, and a linkage sampling mechanism is mounted at the top end of the supporting plate. The linkage sampling mechanism composed of the guide rail, the motor, the linkage plate, the connecting rod, the drawing plug, the sampling pipe and the screw rod is jointly installed on the two sides of the high-viscosity petroleum pipeline, and when high-viscosity petroleum in the long-distance high-viscosity petroleum conveying pipeline is sampled, the high-viscosity petroleum in the long-distance high-viscosity petroleum conveying pipeline is sampled; the high-viscosity petroleum is sampled in a double-side linkage suction sampling mode, and the path through which the high-viscosity petroleum passes in the sampling process is only the length of the horizontal upward sampling pipe, so that the sampling process of the high-viscosity petroleum is more continuous and smooth, meanwhile, the circulation path of the high-viscosity petroleum is shortened, and the sampling efficiency is improved. And the defects of adhesion waste and sampling pipe blockage during online sampling of the high-viscosity petroleum are effectively avoided.

Description

Technical Field

[0001] This application relates to the field of online detection technology for oil transportation, and in particular to an online sampling device for high-viscosity oil. Background Technology

[0002] In the petrochemical industry, pipelines are often used to transport high-viscosity oil over long distances from processing sites to sales locations. However, during long-distance transportation, the high viscosity of the oil causes constant friction against the inner wall of the pipeline, which can easily lead to the shedding of tiny particles from the pipeline wall and their contamination of the oil. Furthermore, the water content of the high-viscosity oil changes as the transportation distance increases. To ensure the quality of the high-viscosity oil during transportation, it is necessary to sample and test it during the process.

[0003] In existing technologies, when sampling and testing high-viscosity oil during long-distance transportation, a circulating suction pipeline consisting of multiple pipes is mainly used to extract the high-viscosity oil from the transportation pipeline for sampling. After sampling, the high-viscosity oil is discharged back into the oil transportation pipeline by the circulating suction pipeline. Although the circulating suction pipeline can extract high-viscosity oil from the oil transportation pipeline for sampling, due to the high viscosity of the oil itself, high-viscosity oil tends to adhere and remain in the circulating suction pipeline after each sampling. This not only causes waste of high-viscosity oil after sampling and testing, but also easily causes blockage of the circulating suction pipeline due to excessive adhesion of high-viscosity oil. As a result, the sampling efficiency of online monitoring of high-viscosity oil in the oil transportation pipeline is relatively low. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide an online sampling device for high-viscosity oil that achieves continuous online sampling of high-viscosity oil in oil transportation pipelines through a dual-sided linkage suction method. This device ensures high-viscosity oil sampling efficiency while shortening the movement path of high-viscosity oil during sampling and detection, avoiding the waste of high-viscosity oil after sampling and the drawback of clogging the sampling tube.

[0005] The above-mentioned objective of this application is achieved through the following technical solution:

[0006] An online sampling device for high-viscosity oil includes a mounting plate with a support plate connected to the top center of the mounting plate. A linkage sampling mechanism is mounted on the top of the support plate. The linkage sampling mechanism includes a guide rail, a motor, a linkage plate, a connecting rod, a stopper, a sampling tube, and a screw. There are two sampling tubes, which are symmetrically installed on both sides of a high-viscosity oil transport pipeline. The stopper is located inside the sampling tube. The connecting rod is installed between the stopper and the linkage plate. There are two linkage plates, both of which are mounted on the screw. The screw is installed at the bottom center of the guide rail. The motor is installed on one side wall of the guide rail, directly opposite one end of the screw.

[0007] Optionally, the sampling tube has a flange on the side facing the oil pipeline, and the plug slides into the sampling tube.

[0008] Optionally, one end of the connecting rod is bonded to the plunger, and the other end of the connecting rod is fixedly connected to the linkage plate.

[0009] Optionally, the length of the screw is greater than the distance between the two linkage plates, and the screw passes through the linkage plate and is threadedly engaged with the linkage plate.

[0010] Optionally, the linkage plate is slidably engaged with the guide rail, and both ends of the screw are rotatably engaged with the guide rail.

[0011] Optionally, the mounting plate has an arc-shaped structure, and mounting holes are reserved at both ends of the mounting plate. The support plate is perpendicular to the surface of the mounting plate.

[0012] Optionally, a detection probe guide tube is also installed in the middle of the upper end of the sampling tube, and a sensor mounting base is provided on the sampling tube above the detection probe guide tube. Electric telescopic rods are installed on both sides of the bottom end of the sensor mounting base and between the sampling tube.

[0013] Optionally, one end of the electric telescopic rod is bolted to the sensor mounting base, and the other end of the electric telescopic rod is bolted to the sampling tube.

[0014] Optionally, the detection probe conduit is welded and fixed to the sampling tube, and the interior of the detection probe conduit is in communication with the interior of the sampling tube.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] This invention utilizes a linked sampling mechanism, consisting of a guide rail, motor, linkage plate, connecting rod, plunger, sampling tube, and screw, installed on both sides of a high-viscosity oil pipeline. During online sampling of high-viscosity oil, the motor drives the screw to rotate, causing the plunger in one sampling tube to move outward with the corresponding connecting plate, drawing oil from the pipeline into the corresponding sampling tube. Meanwhile, the plunger in the other sampling tube is positioned inside the tube facing the oil pipeline. After the high-viscosity oil sample in the sampling tube has been detected, the sensor mounting base needs to be installed... The detection probe is moved out of the corresponding sampling tube, and then the motor is reversed under the action of the motor to discharge the high-viscosity oil in the sampling tube after sampling. Meanwhile, the plug in the other unsampled sampling tube will be pulled outward to achieve online sampling of the high-viscosity oil again. Since the high-viscosity oil is sampled by a double-sided linkage suction sampling method, and the path that the high-viscosity oil travels during the sampling process is only the length of the horizontal upward sampling tube, the sampling process of high-viscosity oil is more continuous and smooth. At the same time, the circulation path of high-viscosity oil is shortened, which effectively avoids the disadvantages of adhesion waste and clogging of the sampling tube during online sampling of high-viscosity oil. Attached Figure Description

[0017] Figure 1 This is a main sectional view provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the structure provided in the embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the linkage plate provided in the embodiment of this application;

[0020] Figure 4 This is provided by the embodiments of this application. Figure 2 Enlarged view of point A in the middle.

[0021] Explanation of reference numerals in the attached drawings: 1. Support plate; 2. Mounting plate; 3. Linkage sampling mechanism; 31. Guide rail; 32. Motor; 33. Linkage plate; 34. Connecting rod; 35. Squeezing plug; 36. Sampling tube; 37. Screw; 4. Sensor mounting base; 5. Electric telescopic rod; 6. Detection probe guide tube. Detailed Implementation

[0022] The present application is further described in detail below with reference to the accompanying drawings.

[0023] To better understand the technical solutions presented in the embodiments of this application, the sampling principle of high-viscosity oil in oil transportation pipelines in the prior art will be introduced first.

[0024] In existing technologies, when sampling and testing high-viscosity oil during long-distance transportation, a circulating suction pipeline consisting of multiple pipes is mainly used to extract the high-viscosity oil from the transportation pipeline for sampling, so that the sampled oil can be tested. After testing, the high-viscosity oil is discharged back into the oil transportation pipeline under the action of the circulating suction pipeline.

[0025] Please see Figures 1-3 This application discloses an online sampling device for high-viscosity oil, comprising a mounting plate 2, a support plate 1 connected to the top center of the mounting plate 2, and a linkage sampling mechanism 3 mounted on the top of the support plate 1. The linkage sampling mechanism 3 includes a guide rail 31, a motor 32, a linkage plate 33, a connecting rod 34, a stopper 35, a sampling tube 36, and a screw 37. There are two sampling tubes 36, which are symmetrically installed on both sides of the high-viscosity oil transport pipeline. The stopper 35 is located inside the sampling tube 36. The connecting rod 34 is installed between the stopper 35 and the linkage plate 33. There are two linkage plates 33, both of which are mounted on the screw 37. The screw 37 is installed at the bottom center of the guide rail 31. The motor 32 is installed on one side wall of the guide rail 31, directly opposite one end of the screw 37.

[0026] Specifically, when sampling high-viscosity oil online, the screw 37 is first rotated by the motor 32. During the rotation of the screw 37, the plunger 35 in one sampling tube 36 moves outward with the corresponding connecting plate, drawing oil from the high-viscosity oil delivery pipeline into the corresponding sampling tube 36, thus achieving online sampling of the high-viscosity oil. At this time, the plunger 35 in the other sampling tube 36 is located inside the corresponding sampling tube 36 facing the end of the oil delivery pipeline. After the high-viscosity oil sampled in the sampling tube 36 has been detected, the detection probe at the detection sensor mounting base 4 needs to be moved out of the corresponding sampling tube 36. Then, the motor 32 is rotated in the opposite direction under the action of the motor 32 to discharge the high-viscosity oil in the sampling tube 36 after sampling. The plunger 35 in the other unsampled sampling tube 36 will be pulled outward to achieve online sampling of the high-viscosity oil again.

[0027] Please see Figure 1 and Figure 2 The sampling tube 36 has a flange on the side facing the oil pipeline, and the plug 35 slides in fit with the sampling tube 36.

[0028] As one implementation method, the sampling tube 36 can be reliably installed on the high-viscosity oil transportation pipeline by means of the flange on the sampling tube 36, and the sliding fit installation method makes it more convenient to pull the plug 35 out of the sampling tube 36.

[0029] Please see Figure 1One end of the connecting rod 34 is bonded to the plunger 35, and the other end of the connecting rod 34 is fixedly connected to the linkage plate 33.

[0030] In one implementation, the connecting rod 34 is mainly used to realize the synchronous movement of the plunger 35 with the linkage plate 33, so as to control the suction and sampling of oil in the high viscosity oil transportation pipeline through the linkage plate 33.

[0031] Please see Figure 1 and Figure 2 The length of the screw 37 is greater than the distance between the two linkage plates 33, and the screw 37 passes through the linkage plate 33 and is threadedly engaged with the linkage plate 33.

[0032] As one implementation, the length of the screw 37 is greater than the distance between the two linkage plates 33, which allows the two linkage plates 33 to have sufficient sliding adjustment length within the guide rail 31. This ensures that when the plug 35 in one sampling tube 36 is located at the end of the sampling tube 36 facing the high-viscosity oil pipeline, the plug 35 in the other sampling tube 36 can be pulled to the corresponding sampling tube 36 facing away from the high-viscosity oil pipeline.

[0033] Please see Figure 1 The linkage plate 33 is slidably engaged with the guide rail 31, and the two ends of the screw 37 are rotatably engaged with the guide rail 31.

[0034] As one implementation method, the sliding fit installation method makes the movement of the linkage plate 33 relative to the guide rail 31 more stable, while the rotation fit installation method makes the rotation adjustment of the screw 37 relative to the guide rail 31 more convenient.

[0035] Please see Figure 1 and Figure 2 Mounting plate 2 has an arc-shaped structure, and mounting holes are reserved at both ends of mounting plate 2. Support plate 1 is perpendicular to the surface of mounting plate 2.

[0036] In one implementation, the mounting plate 2 is fixedly connected to the top of the oil pipeline during use so that the guide rail 31 can be adequately supported by the action of the mounting plate 2 and the support plate 1.

[0037] Please see Figure 1 , Figure 2 and Figure 4 A detection probe guide tube 6 is also installed in the middle of the upper end of the sampling tube 36. A sensor mounting base 4 is set on the upper side of the detection probe guide tube 6 on the sampling tube 36. Electric telescopic rods 5 are installed on both sides of the bottom end of the sensor mounting base 4 and between the sampling tube 36.

[0038] In one implementation, the sensor mounting base 4 is mainly used to install a sensor for online detection of high viscosity oil quality. The detection probe conduit 6 ensures convenient insertion of the detection probe of the sensor into the sampling tube 36. The electric telescopic rod 5 is mainly used to enable convenient lifting and lowering of the sensor mounting base 4, so that the detection probe of the sensor for online detection of high viscosity oil quality can be moved out of the sampling tube 36 during the lifting process of the sensor mounting base 4, and the detection probe of the sensor for online detection of high viscosity oil quality can be used to seal the detection probe conduit 6, ensuring convenient discharge of high viscosity oil after sampling and detection.

[0039] Please see Figure 1 , Figure 2 and Figure 4 One end of the electric telescopic rod 5 is bolted to the sensor mounting base 4, and the other end of the electric telescopic rod 5 is bolted to the sampling tube 36.

[0040] As one implementation method, the bolt connection can not only achieve a reliable connection and fixation between the electric telescopic rod 5 and the sampling tube 36, but also a reliable connection between the telescopic part of the electric telescopic rod 5 and the sensor mounting base 4.

[0041] Please see Figure 1 , Figure 2 and Figure 4 The detection probe conduit 6 is welded and fixed to the sampling tube 36, and the inside of the detection probe conduit 6 is connected to the inside of the sampling tube 36.

[0042] As one implementation method, by connecting the inside of the detection probe conduit 6 with the inside of the sampling tube 36, it can be ensured that the detection probe of the sensor for online detection of high viscosity oil quality can smoothly enter the inside of the sampling tube 36.

[0043] The specific working principle is as follows: First, the mounting plate 2 and support plate 1 are installed on the upper side of the detection area on the high-viscosity oil pipeline. The linkage sampling mechanism 3 is then installed between the support plate 1 and the high-viscosity oil pipeline. Next, the online sampling device is connected to an external power supply and control components to put it into use. When sampling high-viscosity oil online, the motor 32 drives the screw 37 to rotate. During the rotation of the screw 37, the suction plug 35 in one sampling tube 36 moves outward with the corresponding connecting plate, drawing oil from the high-viscosity oil pipeline into the corresponding sampling tube 36, thus achieving online sampling of the high-viscosity oil. At this time, the suction plug 35 in the other sampling tube 36 is located inside the corresponding sampling tube 36 facing the end of the oil pipeline. When sampling... After the high-viscosity oil sampled in tube 36 is detected, the detection probe at the sensor mounting base 4 needs to be moved out of the corresponding sampling tube 36. Then, under the action of motor 32, motor 32 is rotated in reverse to discharge the high-viscosity oil in the sampling tube 36. Meanwhile, the plug 35 in the other unsampled sampling tube 36 will be pulled outward to achieve online sampling of the high-viscosity oil again. Since the high-viscosity oil is sampled by a double-sided linkage suction sampling method, and the path that the high-viscosity oil travels during the sampling process is only the length of the horizontally upward sampling tube 36, the sampling process of high-viscosity oil is more continuous and smooth. At the same time, the circulation path of high-viscosity oil is shortened, effectively avoiding the disadvantages of adhesion waste and clogging of sampling tube 36 during online sampling of high-viscosity oil.

[0044] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An online sampling device for high-viscosity oil, characterized in that: The system includes an installation plate (2), a support plate (1) connected to the top center of the installation plate (2), a linkage sampling mechanism (3) installed at the top of the support plate (1), the linkage sampling mechanism (3) including a guide rail (31), a motor (32), a linkage plate (33), a connecting rod (34), a stopper (35), a sampling tube (36) and a screw (37), wherein there are two sampling tubes (36), and the two sampling tubes (36) are symmetrically installed on both sides of the high viscosity oil transport pipeline. The stopper (35) is located inside the sampling tube (36). The connecting rod (34) is installed between the stopper (35) and the linkage plate (33). There are two linkage plates (33), and both linkage plates (33) are installed on the screw (37). The screw (37) is installed at the bottom center of the guide rail (31). The motor (32) is installed on one side wall of the guide rail (31) directly opposite one end of the screw (37).

2. The online sampling device for high-viscosity oil according to claim 1, characterized in that: The sampling tube (36) has a flange on the side facing the oil pipeline, and the plug (35) slides in conjunction with the sampling tube (36).

3. The online sampling device for high-viscosity oil according to claim 1, characterized in that: One end of the connecting rod (34) is bonded to the plunger (35), and the other end of the connecting rod (34) is fixedly connected to the linkage plate (33).

4. The online sampling device for high-viscosity oil according to claim 1, characterized in that: The length of the screw (37) is greater than the distance between the two linkage plates (33), and the screw (37) passes through the linkage plate (33) and is threadedly engaged with the linkage plate (33).

5. The online sampling device for high-viscosity oil according to claim 1, characterized in that: The linkage plate (33) is slidably engaged with the guide rail (31), and the two ends of the screw (37) are rotatably engaged with the guide rail (31).

6. The online sampling device for high-viscosity oil according to claim 5, characterized in that: The mounting plate (2) has an arc-shaped structure, and mounting holes are reserved at both ends of the mounting plate (2). The support plate (1) is perpendicular to the surface of the mounting plate (2).

7. The online sampling device for high-viscosity oil according to claim 1, characterized in that: The sampling tube (36) is also equipped with a detection probe guide tube (6) at the middle of the upper end. A sensor mounting base (4) is provided on the sampling tube (36) above the detection probe guide tube (6). Electric telescopic rods (5) are installed between the bottom two sides of the sensor mounting base (4) and the sampling tube (36).

8. The online sampling device for high-viscosity oil according to claim 7, characterized in that: One end of the electric telescopic rod (5) is bolted to the sensor mounting base (4), and the other end of the electric telescopic rod (5) is bolted to the sampling tube (36).

9. The online sampling device for high-viscosity oil according to claim 7, characterized in that: The detection probe conduit (6) is welded and fixed to the sampling tube (36), and the inside of the detection probe conduit (6) is connected to the inside of the sampling tube (36).

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