Automatic sampling device for oil storage tank

Abstract

The application relates to the technical field of oil storage tank sampling, in particular to an automatic oil storage tank sampling device, which comprises a tank body, a feeding inlet is fixedly connected to the top of the tank body, a motor one is fixedly connected to the top of the tank body, a screw rod is fixedly connected to the bottom output end of the motor one, a fixing box is fixedly connected to the front of the tank body, a moving part is screw-connected to the outer wall of the screw rod, and the automatic oil storage tank sampling device is characterized in that a motor two, a rotating disc, a sliding column and other components are arranged, when the rotating disc is driven to rotate by the motor two, the sliding column slides along the top slot of the rotating disc, simultaneously drives the sliding ring to rotate, the sliding ring drives the connecting plate to drive the rotating oil suction pipe to reciprocatingly rotate around the inner wall of the moving block through the connecting column, the oil suction port covers different radial areas of the tank body at a specified depth, the device avoids sample deviation caused by single position sampling, the collected sample can more comprehensively reflect the overall quality of oil in the tank, the automatic sampling degree is improved, and the manual operation strength is reduced.

Description

Technical Field

[0001] This application relates to the technical field of oil tank sampling, and in particular to an automatic oil tank sampling device. Background Technology

[0002] Oil tank sampling refers to the process in the petroleum, chemical and other fields of obtaining representative samples of oil products (such as crude oil, gasoline, diesel, lubricating oil, etc.) from specific locations (such as the top, middle, bottom, or a mixed area of ​​a certain proportion) within an oil tank, using standardized methods, tools and procedures. The core purpose is to evaluate the overall quality, purity, stability and compliance with relevant standards of the oil products in the tank through subsequent analysis of the collected samples (such as component detection, quality index determination, impurity content screening, etc.).

[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: Existing automatic sampling devices mostly use fixed oil suction ports, and the oil suction pipe can only extract oil at a single radial position, which cannot cover different radial areas of the tank. For example, the oil in the central area and the edge area of ​​the tank may have different compositions due to stratification and impurity deposition after standing. Sampling at a single position is prone to sample deviation and makes it difficult to reflect the overall quality of the oil in the tank. Utility Model Content

[0004] To make the sampling more uniform, this application provides an automatic sampling device for oil storage tanks.

[0005] This application provides an automatic sampling device for an oil storage tank, which adopts the following technical solution: it includes a tank body, an inlet fixedly connected to the top of the tank body, a motor fixedly connected to the top of the tank body, a lead screw fixedly connected to the bottom output end of the motor, and a fixed box fixedly connected to the front of the tank body. The outer wall of the lead screw is threaded with a movable block, the inner wall of the movable block is rotatably connected with a rotating oil suction pipe, the outer wall of the rotating oil suction pipe is fixedly connected with a connecting plate, the inner wall of the connecting plate is fixedly connected with a connecting column, a rotating disk is provided below the connecting column, the top of the rotating disk is provided with a slot, the inner wall of the slot is slidably connected with a sliding column, and the outer wall of the sliding column is slidably connected with a sliding ring.

[0006] Optionally, a sealing cylinder is fixedly connected to the inner wall of the movable block, and a motor is fixedly connected to the inner wall of the sealing cylinder.

[0007] Optionally, the top output end of the second motor is fixedly connected to the bottom of the rotating disk, the top of the sliding column is rotatably connected to the inner wall of the sliding ring, and a connecting pipe is fixedly connected to the right side of the rotating oil suction pipe.

[0008] Optionally, an oil pump is fixedly connected to one end of the connecting pipe away from the rotating oil suction pipe. The outer wall of the oil pump is fixedly connected to the inner wall of the tank. There are two connecting plates, which are symmetrically arranged with the connecting column as the center.

[0009] Optionally, a second connecting pipe is fixedly connected to the front of the oil pump, and a collecting cylinder is fixedly installed at the bottom of the second connecting pipe.

[0010] Optionally, a fixed box is fixedly connected to the inner wall of the fixed box, and a bidirectional threaded rod is rotatably connected to the fixed box. A rotating block is fixedly connected to the left side of the bidirectional threaded rod.

[0011] Optionally, the outer wall of the bidirectional threaded rod is threaded with rubber grippers, the inner wall of the rubber grippers is in contact with the outer wall of the collecting cylinder, and there are two rubber grippers, which are symmetrically arranged with the collecting cylinder as the center.

[0012] In summary, this application includes the following beneficial technical effects: 1. This utility model is equipped with components such as a second motor, a rotating disk, and a sliding column. When the second motor drives the rotating disk to rotate, the sliding column slides along the top groove of the rotating disk, synchronously driving the sliding ring to rotate. The sliding ring drives the rotating oil suction pipe to reciprocate around the inner wall of the moving block through the connecting column and the connecting plate, so that the oil suction port covers different radial areas of the tank at a specified depth. This avoids sample deviation caused by sampling at a single location, and the collected samples can more comprehensively reflect the overall quality of the oil in the tank. At the same time, it improves the degree of automation of sampling and reduces the intensity of manual operation.

[0013] 2. This utility model is equipped with a rotating block, a bidirectional threaded rod, and rubber grippers. Rotating the rotating block drives the bidirectional threaded rod to rotate. Since the two rubber grippers are threadedly connected to the bidirectional threaded rod and are symmetrical about the collection cylinder, the rotation of the bidirectional threaded rod drives the grippers to move towards or away from each other. At the same time, since the two rubber grippers are made of rubber, they can clamp collection cylinders of different outer diameters. The collection cylinder can be adapted simply by rotating the rotating block. The operation is simple and quick, significantly improving the compatibility of the device with collection cylinders of different specifications, reducing the time for changing collection cylinders, and ensuring the continuity of sampling work. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the connecting plate in an embodiment of this application; Figure 3 This is a schematic diagram of the sliding column in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the connecting pipe one in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the rubber gripper in the embodiments of this application.

[0015] Reference numerals: 1. Tank body; 11. Inlet; 12. Motor 1; 121. Lead screw; 13. Fixed box; 2. Moving block; 21. Rotating suction pipe; 211. Connecting plate; 212. Connecting column; 22. Sliding ring; 221. Sliding column; 23. Sealing cylinder; 231. Motor 2; 232. Rotating disk; 24. Connecting pipe 1; 25. Oil pump; 3. Connecting pipe 2; 31. Collection cylinder; 32. Fixed box; 33. Bidirectional threaded rod; 331. Rotating block; 34. Rubber gripper. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-5 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] This application discloses an automatic sampling device for oil storage tanks. For example... Figure 1 , Figure 2 , Figure 3 As shown, the device includes a tank body 1, an inlet 11 fixedly connected to the top of the tank body 1, a motor 12 fixedly connected to the top of the tank body 1, a lead screw 121 fixedly connected to the bottom output end of the motor 12, and a fixed box 13 fixedly connected to the front of the tank body 1.

[0018] In this embodiment, a movable block 2 is threadedly connected to the outer wall of the lead screw 121. A sliding hole is provided on the top of the movable block 2, and a limiting post slides on the inner wall of the sliding hole to prevent the movable block 2 from rotating during movement. A rotating oil suction pipe 21 is rotatably connected to the inner wall of the movable block 2. A connecting plate 211 is fixedly connected to the outer wall of the rotating oil suction pipe 21. A connecting post 212 is fixedly connected to the inner wall of the connecting plate 211. A rotating disk 232 is provided below the connecting post 212. A slot is provided on the top of the rotating disk 232. A sliding post 221 is slidably connected to the inner wall of the slot. The slot can limit the sliding post 221. A sliding ring 22 is slidably connected to the outer wall of the sliding post 221.

[0019] Please see Figure 5 As shown, the front of the oil pump 25 is fixedly connected to the connecting pipe 2 3, and the bottom of the connecting pipe 2 3 is fixedly installed with the collecting cylinder 31.

[0020] Please see Figure 2 , Figure 3As shown, a sealing cylinder 23 is fixedly connected to the inner wall of the movable block 2, and a motor 231 is fixedly connected to the inner wall of the sealing cylinder 23. A sealing ring is provided at the position where the sealing cylinder 23 contacts the output shaft of the motor 231 to prevent oil from entering the sealing cylinder 23.

[0021] Please see Figure 5 As shown, a fixed box 32 is fixedly connected to the inner wall of the fixed box 13. A two-way threaded rod 33 is rotatably connected to the fixed box 32. A rotating block 331 is fixedly connected to the left side of the two-way threaded rod 33. The outer wall of the rotating block 331 is provided with anti-slip texture to prevent the user from slipping when rotating.

[0022] Please see Figure 3 As shown, the top output end of motor 231 is fixedly connected to the bottom of rotating disk 232, the top of sliding column 221 is rotatably connected to the inner wall of sliding ring 22, and a connecting pipe 24 is fixedly connected to the right side of rotating oil suction pipe 21. The connecting pipe 24 is a flexible pipe.

[0023] Please see Figure 5 As shown, the outer wall of the bidirectional threaded rod 33 is threaded with rubber claws 34. There are two rubber claws 34, which can be adapted to the collection cylinders 31 of different diameters and clamp and fix them for easy and quick assembly and disassembly. The inner wall of the rubber claws 34 is in contact with the outer wall of the collection cylinder 31. There are two rubber claws 34, which are symmetrically arranged with the collection cylinder 31 as the center.

[0024] Please see Figure 4 As shown, an oil pump 25 is fixedly connected to the end of the connecting pipe 24 away from the rotating oil suction pipe 21. The outer wall of the oil pump 25 is fixedly connected to the inner wall of the tank 1. There are two connecting plates 211, which are symmetrically arranged with the connecting column 212 as the center.

[0025] The implementation principle of the automatic sampling device for an oil storage tank according to an embodiment of this application is as follows: Motor 12 at the top of the tank 1 is started, and the output end of motor 12 drives the lead screw 121 to rotate around its own axis. Since the moving block 2 is threadedly connected to the lead screw 121 and is restricted to avoid rotating synchronously with the lead screw, when the lead screw 121 rotates, it drives the moving block 2 to move up and down along the lead screw axis. The moving block 2 synchronously drives the rotating oil suction pipe 21 connected to its inner wall to adjust to the preset sampling depth. Then, motor 12 is turned off, and the depth positioning is completed. Then, motor 231 in the sealing cylinder 23 and the oil pump 25 on the inner wall of the tank 1 are started. The output end of motor 231 drives the rotating disk 232 to rotate around its axis. The sliding column 221 in the slot at the top of the rotating disk 232 rotates with the rotating disk. While sliding along the inner wall of the slot, it drives the sliding ring 22 connected to the outer wall to reciprocate. The sliding ring 22 drives the connecting plate 211 fixed to the rotating oil suction pipe 21 to move through the connecting column 212 connected to the inner wall, thereby driving the rotating disk 232 to rotate. The suction pipe 21 oscillates back and forth around the inner wall of the moving block 2. The oil pump 25 draws oil from the tank by rotating the suction pipe 21. The oil is then transported to the oil pump via connecting pipe 1 24, and then to the collection cylinder 31 below via connecting pipe 2 3, completing the oil collection in the reciprocating oscillation state. Before sampling, according to the outer diameter of the collection cylinder 31, the rotating block 331 on the left side of the bidirectional threaded rod 33 inside the fixed box 13 is rotated, causing the bidirectional threaded rod to rotate inside the fixed box 32. The two symmetrically arranged rubber claws 34 and the bidirectional threaded rod 33... The threaded connection moves the grippers in opposite directions as the bidirectional threaded rod rotates until the inner wall of the gripper is in close contact with the outer wall of the collection cylinder, thus completing the clamping and fixing. When changing the collection cylinder, rotate the rotating block 331 in the opposite direction to move the grippers in opposite directions, loosen the old cylinder, replace it with the new cylinder, and then rotate it in the forward direction to clamp it. When the oil in the collection cylinder 31 reaches the preset amount, turn off the motor 231 and the oil pump 25, rotate the rotating block 331 in the opposite direction to loosen the rubber gripper 34, and remove the collection cylinder to complete the sampling. If sampling is required again, repeat the above steps.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic sampling device for an oil storage tank, comprising a tank body (1), characterized in that: The tank (1) is fixedly connected to the top of the inlet (11), the tank (1) is fixedly connected to the top of the motor (12), the bottom output end of the motor (12) is fixedly connected to the lead screw (121), and the tank (1) is fixedly connected to the front of the fixed box (13). The outer wall of the lead screw (121) is threaded with a moving block (2), the inner wall of the moving block (2) is rotatably connected with a rotating oil suction pipe (21), the outer wall of the rotating oil suction pipe (21) is fixedly connected with a connecting plate (211), the inner wall of the connecting plate (211) is fixedly connected with a connecting column (212), a rotating disk (232) is provided below the connecting column (212), the top of the rotating disk (232) is provided with a slot, the inner wall of the slot is slidably connected with a sliding column (221), and the outer wall of the sliding column (221) is slidably connected with a sliding ring (22).

2. The automatic sampling device for oil storage tanks according to claim 1, characterized in that: A sealing cylinder (23) is fixedly connected to the inner wall of the movable block (2), and a motor (231) is fixedly connected to the inner wall of the sealing cylinder (23).

3. The automatic sampling device for oil storage tanks according to claim 2, characterized in that: The top output end of the second motor (231) is fixedly connected to the bottom of the rotating disk (232), the top of the sliding column (221) is rotatably connected to the inner wall of the sliding ring (22), and the right side of the rotating oil suction pipe (21) is fixedly connected to the first connecting pipe (24).

4. The automatic sampling device for an oil storage tank according to claim 3, characterized in that: The end of the connecting pipe (24) away from the rotating oil suction pipe (21) is fixedly connected to an oil pump (25). The outer wall of the oil pump (25) is fixedly connected to the inner wall of the tank (1). There are two connecting plates (211), and the two connecting plates (211) are symmetrically arranged with the connecting column (212) as the center.

5. An automatic sampling device for an oil storage tank according to claim 4, characterized in that: The oil pump (25) is fixedly connected to the front of the connecting pipe 2 (3), and the bottom of the connecting pipe 2 (3) is fixedly installed with the collecting cylinder (31).

6. The automatic sampling device for oil storage tanks according to claim 1, characterized in that: The inner wall of the fixed box (13) is fixedly connected to a fixed box (32), and the fixed box (32) is rotatably connected to a bidirectional threaded rod (33). A rotating block (331) is fixedly connected to the left side of the bidirectional threaded rod (33).

7. An automatic sampling device for an oil storage tank according to claim 6, characterized in that: The outer wall of the bidirectional threaded rod (33) is threaded with a rubber gripper (34). The inner wall of the rubber gripper (34) is in contact with the outer wall of the collecting cylinder (31). There are two rubber grippers (34), and the two rubber grippers (34) are symmetrically arranged with the collecting cylinder (31) as the center.

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