Automatic sampler for crude oil detection

Abstract

The utility model discloses an automatic sampler for crude oil detection, which comprises a connecting pipe, two ends of the connecting pipe are fixedly connected with flanges, and the middle part of the connecting pipe is communicated with a sampling component; a sampling shell structure is placed in the sampling assembly, and the sampling shell structure can pump out crude oil in the connecting pipe for sampling operation. According to the automatic sampler, by arranging the connecting pipe, the automatic sampler can be connected into a crude oil conveying pipeline, sampling operation can be conducted at any time, by arranging the sampling assembly, a user can insert the sampling shell into the through hole and then rotate the fan-shaped block to enable the sampling shell to be communicated with the connecting pipe, and then a crude oil sample is directly extracted from the connecting pipe; then the fan-shaped block is rotated, and the round hole in the connecting pipe is blocked by using the fan-shaped block while the sampling shell is taken out.

Description

An automated sampler for crude oil testing Technical Field

[0001] This utility model relates to the field of crude oil sampling technology, and in particular to an automatic sampler for crude oil testing. Background Technology

[0002] Crude oil testing is a crucial step in the petroleum industry to systematically analyze the physical properties, chemical composition, and contaminants of crude oil. It mainly relies on national standards and international norms to ensure crude oil quality and trade compliance. my country's mandatory national standard GB36170-2018 "Crude Oil" stipulates eight core indicators, including water content (mass fraction 0.5%-2%), vapor pressure (≤66.7kPa), mechanical impurities (≤0.05%), and organic chlorine content of the fraction before 204℃ (≤10μg / g). The supporting testing methods refer to national standards such as GB / T 1884 (density) and GB / T 8929 (water content).

[0003] In existing technologies, crude oil testing typically involves workers using containers to scoop crude oil from a drum, then placing it into a measuring instrument for sealing and testing. This process is cumbersome and can easily lead to sample contamination when scooping out crude oil from an open container. There is a lack of equipment that can directly sample crude oil from pipelines. Therefore, we propose an automatic sampler for crude oil testing to address these issues. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing an automatic sampler for crude oil testing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automated sampler for crude oil testing includes:

[0007] A connecting pipe, both ends of which are fixedly connected to flanges, and a sampling component is connected to the middle of the connecting pipe;

[0008] The sampling assembly contains a sampling shell structure, which can extract crude oil from the connecting pipe for sampling.

[0009] Preferably, the sampling assembly includes a rotating shell fixedly connected to a connecting tube. The rotating shell has a circular hole that penetrates both the rotating shell and the connecting tube. A sector block is rotatably connected inside the rotating shell, and a through hole is provided on the sector block. A rotating sleeve is rotatably connected inside the through hole. A strip groove is provided on the rotating shell, and a clearance groove is provided on the side wall of the rotating shell, allowing the user to insert or remove the sampling shell structure through the clearance groove.

[0010] Preferably, the sampling shell structure includes a main body, an extension nozzle is fixedly connected to the lower end of the main body, the extension nozzle is inserted into the rotating sleeve, a sealing plate is rotatably connected to the lower end of the extension nozzle, and a baffle is fixedly connected to the lower end of the extension nozzle. Both the baffle and the sealing plate are provided with multiple fan-shaped holes. A piston plate is slidably connected inside the main body, and a piston rod is fixedly connected to the upper end of the piston plate, and the piston rod passes through the strip groove.

[0011] Preferably, the sector block has a receiving groove, and the main body is inserted into the receiving groove.

[0012] Preferably, a shaft is fixedly connected to the sector block, the shaft is rotatably connected to the rotating shell, and the shaft passes through the rotating shell. A hand-tightening sleeve is fixedly connected to one end of the shaft.

[0013] Preferably, the inner wall of the sleeve is provided with a groove, and the side wall of the sealing plate is fixedly connected with a protrusion that matches the groove.

[0014] Preferably, the outer wall of the sleeve is provided with a surrounding anti-slip groove.

[0015] Preferably, the width of the strip groove is smaller than the outer diameter of the main body, and the inner diameter of the clearance groove is larger than the outer diameter of the main body.

[0016] Preferably, a lever is fixedly connected to the upper end of the piston rod.

[0017] Preferably, a groove is formed on the upper surface of the sector block near the through hole, and an electric rotating platform is fixedly connected in the groove. The upper surface of the electric rotating platform is fixedly connected to the lower surface of the rotating sleeve, and the electric rotating platform is electrically connected to a wireless control module.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, by setting a connecting pipe, can connect the automatic sampler to the crude oil transportation pipeline and can perform sampling operations at any time. By setting a sampling component, the user can insert the sampling shell into the through hole, and then rotate the sector block to connect the sampling shell with the connecting pipe, thereby directly extracting the crude oil sample from the connecting pipe. Then, by rotating the sector block, the sampling shell is removed, and the sector block is used to block the round hole on the connecting pipe.

[0020] 2. This utility model, by setting up a sampling shell hooked out by the main body and the extension nozzle, allows the sealing plate to rotate when the sampling shell is inserted into the rotating sleeve, so that the fan-shaped holes on the baffle and the sealing plate coincide. At this time, the crude oil in the connecting pipe can enter the main body. After sampling is completed, the rotating sleeve can be rotated to drive the sealing plate to rotate, so that the fan-shaped holes on the baffle and the sealing plate are misaligned, thereby using the sealing plate to seal the main body and prevent the crude oil sample in the sampling shell from spilling out when the sampling shell is moved and transported. Attached Figure Description

[0021] Figure 1 is a first-view perspective three-dimensional schematic diagram of an automatic sampler for crude oil testing proposed in this utility model;

[0022] Figure 2 is a second-view perspective three-dimensional schematic diagram of an automatic sampler for crude oil testing proposed in this utility model;

[0023] Figure 3 is a partial structural schematic diagram of an automatic sampler for crude oil testing proposed in this utility model.

[0024] Figure 4 is a side sectional view of the rotating shell and connecting pipe connection structure of an automatic sampler for crude oil testing proposed in this utility model.

[0025] Figure 5 is a cross-sectional view of the sleeve portion in an automatic sampler for crude oil testing proposed in this utility model.

[0026] Figure 6 is an exploded view of the extension nozzle of an automatic sampler for crude oil testing proposed in this utility model.

[0027] In the diagram: 1. Connecting pipe; 2. Flange; 3. Rotating shell; 4. Round hole; 5. Sector block; 6. Sleeve; 7. Strip groove; 8. Relief groove; 9. Main body; 10. Extension nozzle; 11. Sealing plate; 12. Baffle; 13. Piston plate; 14. Piston rod; 15. Sector hole; 16. Receiving groove; 17. Shaft; 18. Hand-tightening sleeve; 19. Protrusion; 20. Pulley; 21. Electric rotary table. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Referring to Figures 1-6, an automatic sampler for crude oil testing includes:

[0030] The connecting pipe 1 has flanges 2 fixedly connected to both ends. A sampling component is connected to the middle of the connecting pipe 1. The flanges 2 are used to directly connect the connecting pipe 1 to the crude oil transportation pipeline, which can perform sampling operations at any time during crude oil transportation, and has greater flexibility and is more convenient to operate.

[0031] The sampling assembly contains a sampling shell structure, which can extract crude oil from the connecting pipe 1 for sampling.

[0032] More specifically, the sampling assembly includes a rotating shell 3 fixedly connected to the connecting pipe 1. The rotating shell 3 has a circular hole 4 that passes through the rotating shell 3 and the connecting pipe 1. A sector block 5 is rotatably connected inside the rotating shell 3. The sector block 5 has a rotation range of 90°. The sector block 5 abuts against the inner wall of the rotating shell 3 through a sealing gasket, providing good sealing performance and high rotational resistance. A through hole is provided on the sector block 5, and a rotating sleeve 6 is rotatably connected inside the through hole. A strip groove 7 is provided on the rotating shell 3, and a clearance groove 8 is provided on the side wall of the rotating shell 3. The user can insert or remove the sampling shell structure through the clearance groove 8.

[0033] Based on the above design, when no sampling is being performed, the sector block 5 is used to directly block the round hole 4 (its contact surface with the rotating shell 3 has a rubber sealing gasket) to ensure that crude oil will not overflow through the round hole 4. When sampling is required, the user rotates the sector block 5 to align the through hole with the round hole 4. At this time, crude oil can flow out through the round hole 4 and the through hole to achieve the purpose of temporary sampling.

[0034] Furthermore, the sampling shell structure includes a main body 9, with an extension nozzle 10 fixedly connected to the lower end of the main body 9. The extension nozzle 10 is inserted into the rotating sleeve 6. A receiving groove 16 is provided on the fan-shaped block 5, and the main body 9 is inserted into the receiving groove 16. A sealing plate 11 is rotatably connected to the lower end of the extension nozzle 10, and a baffle 12 is fixedly connected to the lower end of the extension nozzle 10. Both the baffle 12 and the sealing plate 11 have multiple fan-shaped holes 15. A piston plate 13 is slidably connected inside the main body 9, and a piston rod 14 is fixedly connected to the upper end of the piston plate 13, with the piston rod 14 passing through a strip groove 7. The width of the strip groove 7 is smaller than the outer diameter of the main body 9, and the inner diameter of the clearance groove 8 is larger than the outer diameter of the main body 9.

[0035] In conjunction with the design of the sampling components, when using the sampling device in this solution to sample crude oil, the user first inserts the main body 9 horizontally into the receiving groove 16 through the relief groove 8 until the extension nozzle 10 is inserted into the sleeve 6. Then, the user rotates the sector block 5. When rotating the sector block 5, due to the slotted groove 7, there is no interference between the piston and the rotating shell 3. After rotating the main body 9 to a vertical position, the round hole 4 aligns with the through hole. At this time, the crude oil can flow upward to the outside of the connecting pipe 1. Then, the user rotates the sleeve 6, which drives the sealing plate 11 to rotate relative to the baffle 12, so that the sealing plate 11 aligns with the sector hole 15 on the baffle 12. In this way, the crude oil can pass through the sector hole 15 and enter the main body 9. At this time, the user can pull the piston upward. The piston rod 14 drives the piston plate 13 to move upward, thereby using negative pressure to draw crude oil from the connecting pipe 1 into the main body 9. After sampling, the user rotates the sleeve 6 again, causing the sealing plate 11 to rotate relative to the baffle 12 (the baffle 12 is installed at the bottom of the inner cavity of the extension nozzle 10), so that the sealing plate 11 and the fan-shaped hole 15 on the baffle 12 are misaligned. At this time, the sealing plate 11 can seal the fan-shaped hole 15 on the baffle 12, ensuring that the crude oil in the main body 9 will not spill out. Then the user rotates the fan-shaped block 5 again, and after the main body 9 is rotated to a horizontal position, the fan-shaped block 5 blocks the round hole 4 before the main body 9 can be taken out. This has a good foolproof effect and avoids the crude oil in the connecting pipe 1 from spilling out during the sampling process due to operational errors or other factors.

[0036] Furthermore, a shaft 17 is fixedly connected to the sector block 5. The shaft 17 is rotatably connected to the rotating shell 3 and passes through the rotating shell 3. A hand-tightening sleeve 18 is fixedly connected to one end of the shaft 17. The shaft 17 and the hand-tightening sleeve 18 make it easier for the user to rotate the sector block 5, making the sampling device more convenient to use without the need for other tools.

[0037] Furthermore, the inner wall of the sleeve 6 is provided with a slot, and the side wall of the sealing plate 11 is fixedly connected with a protrusion 19 that matches the slot. The outer wall of the sleeve 6 is provided with a surrounding anti-slip groove. The protrusion 19 is provided to cooperate with the slot to ensure that the user can stably drive the sealing plate 11 to rotate relative to the baffle 12 when rotating the sleeve 6. The sealing plate 11 needs to fit tightly with the baffle 12 to ensure that the fan-shaped holes 15 on the sealing plate 11 and the baffle 12 can be blocked when they are misaligned. Therefore, the friction between the sealing plate 11 and the baffle 12 is relatively large, hence the above design. The anti-slip groove is provided to facilitate the user's rotation of the sleeve 6.

[0038] The piston rod 14 is fixedly connected to a lever plate 20 at its upper end. The lever plate 20 is used to facilitate the user to push and pull the piston rod 14, thereby driving the piston plate 13 to slide up and down within the main body 9 to achieve the purpose of sucking and squeezing crude oil.

[0039] Furthermore, in this embodiment, a recessed groove can be formed on the upper surface of the sector block 5 near the through hole, and a hollow electric rotating platform 21 is fixedly connected in the recessed groove. The upper surface of the electric rotating platform 21 is fixedly connected to the lower surface of the rotating sleeve 6, and the electric rotating platform 21 is electrically connected to a wireless control module.

[0040] The electric rotary table 21 is a commonly used mechanical component used to drive the rotation of various workpieces. The electric rotary table 21, in conjunction with a wireless control module, allows the user to rotate the sampling shell to a vertical position after placing it into the receiving groove 16, without rotating the rotating sleeve 6, keeping the sampler in standby mode. Based on actual production and processing needs, the electric rotary table 21 can be remotely controlled via the wireless control module to rotate at regular or irregular intervals. The pressure within the crude oil delivery pipeline causes the crude oil to push the piston plate 13 upwards, allowing the crude oil to enter the main body 9. The sampling shell can then be retrieved at the user's convenience. This design is particularly suitable for applications requiring multiple samplings. After the initial sampling, a spare sampling shell is left in the receiving groove 16, and it is retrieved for the next sampling attempt. This not only automates the sampling process but also reduces the number of times the user needs to return.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic sampler for crude oil testing, characterized in that, include: A connecting pipe (1) is provided, with flanges (2) fixedly connected to both ends of the connecting pipe (1). A sampling assembly is connected to the middle of the connecting pipe (1). A sampling shell structure is placed in the sampling assembly, which can extract crude oil from the connecting pipe (1) for sampling.

2. An automatic sampler for crude oil testing according to claim 1, characterized in that, The sampling assembly includes a rotating shell (3) fixedly connected to the connecting tube (1). A circular hole (4) is provided inside the rotating shell (3), and the circular hole (4) is provided through the rotating shell (3) and the connecting tube (1). A fan-shaped block (5) is rotatably connected inside the rotating shell (3), and a through hole is provided on the fan-shaped block (5). A rotating sleeve (6) is rotatably connected inside the through hole. A strip groove (7) is provided on the rotating shell (3), and a clearance groove (8) is provided on the side wall of the rotating shell (3). The user can insert or remove the sampling shell structure through the clearance groove (8).

3. An automatic sampler for crude oil testing according to claim 2, characterized in that, The sampling shell structure includes a main body (9), with an extension nozzle (10) fixedly connected to the lower end of the main body (9). The extension nozzle (10) is inserted into the rotating sleeve (6). A sealing plate (11) is rotatably connected to the lower end of the extension nozzle (10), and a baffle (12) is fixedly connected to the lower end of the extension nozzle (10). Multiple fan-shaped holes (15) are provided on both the baffle (12) and the sealing plate (11). A piston plate (13) is slidably connected inside the main body (9). A piston rod (14) is fixedly connected to the upper end of the piston plate (13), and the piston rod (14) passes through the strip groove (7).

4. An automatic sampler for crude oil testing according to claim 3, characterized in that, The sector block (5) has a receiving groove (16) and the main body (9) is inserted into the receiving groove (16).

5. An automatic sampler for crude oil testing according to claim 2, characterized in that, A shaft (17) is fixedly connected to the sector block (5). The shaft (17) is rotatably connected to the rotating shell (3), and the shaft (17) passes through the rotating shell (3). A hand-tightening sleeve (18) is fixedly connected to one end of the shaft (17).

6. An automatic sampler for crude oil testing according to claim 3, characterized in that, The inner wall of the sleeve (6) is provided with a slot, and the side wall of the sealing plate (11) is fixedly connected with a protrusion (19) that matches the slot.

7. An automatic sampler for crude oil testing according to claim 6, characterized in that, The outer wall of the sleeve (6) is provided with a surrounding anti-slip groove.

8. An automatic sampler for crude oil testing according to claim 3, characterized in that, The width of the strip groove (7) is smaller than the outer diameter of the main body (9), and the inner diameter of the relief groove (8) is larger than the outer diameter of the main body (9).

9. An automatic sampler for crude oil testing according to claim 3, characterized in that, The piston rod (14) is fixedly connected to a lever plate (20) at its upper end.

10. An automatic sampler for crude oil testing according to claim 2, characterized in that, The upper surface of the sector block (5) near the through hole has a groove, and an electric rotary table (21) is fixedly connected in the groove. The upper surface of the electric rotary table (21) is fixedly connected to the lower surface of the rotary sleeve (6), and the electric rotary table (21) is electrically connected to a wireless control module.

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