An automatic sampling device for storage tanks

Abstract

This utility model relates to the field of tank sampling technology and discloses an automatic tank sampling device, including: a storage tank and an inspection cover installed on the top of the storage tank; a guide column disposed inside the storage tank and a connecting structure slidably mounted on the guide column; a drive mechanism for adjusting the position of the connecting structure is installed on the connecting structure; and a sampling mechanism for sampling oil is installed on the connecting structure. Through the cooperation between the guide column, the connecting structure, the drive mechanism, the displacement sensor, and the sampling mechanism, the drive mechanism can drive the connecting structure to slide up and down along the guide column. Combined with the displacement sensor, the depth of the sampling box inside the storage tank is precisely controlled to meet the oil sampling needs at different locations. Furthermore, the sampling mechanism controls the position of the piston component through an adjusting component, thereby facilitating the extraction of oil. The device has a high degree of automation, avoids errors and safety risks associated with manual sampling, and improves sampling efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of tank sampling technology, specifically to an automatic tank sampling device. Background Technology

[0002] Oil tanks are common oil storage equipment. As we all know, there are many types of oil, such as crude oil, intermediate products, and refined oil. These oil products need to be tested for quality during circulation, such as testing the water content in crude oil and the sulfur content in gasoline. This involves sampling and testing the products inside the tank.

[0003] Traditional sampling methods involve inserting sampling tools into the oil tank through the inspection port at the top. However, when multiple samplings at different depths are required, staff need to perform multiple sampling operations, which greatly increases the time consumed and reduces sampling efficiency. Therefore, we need to propose an automatic sampling device for storage tanks. Utility Model Content

[0004] The purpose of this invention is to provide an automatic sampling device for storage tanks, which facilitates and quickly samples oil at different depths in different storage tanks, improves the efficiency of sample extraction at different depths, and facilitates the rapid collection of collected samples, thereby reducing the time wasted on multiple samplings and improving sampling efficiency, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic sampling device for storage tanks, comprising:

[0006] Storage tank, and a maintenance cover installed on top of the storage tank;

[0007] A guide column is installed inside the storage tank, and a connecting structure is slidably installed on the guide column. A drive mechanism for adjusting the position of the connecting structure is installed on the connecting structure, and a sampling mechanism for taking oil samples is installed on the connecting structure.

[0008] The sampling mechanism includes a sampling box, and a partition is fixedly connected to the inner cavity of the sampling box. The inner cavity of the sampling box is divided into a sampling chamber and an adjustment chamber by the partition. A piston for extracting oil is provided in the sampling chamber, and an adjustment component for controlling the position of the piston is provided in the adjustment chamber. A displacement sensor for monitoring the sampling box at different depths in the storage tank is provided on the drive mechanism.

[0009] Preferably, the piston component includes a magnet box and a sealing sleeve, the magnet is disposed in the inner cavity of the sealing sleeve, and the sampling box has an inlet and outlet on one side that communicates with the sampling chamber.

[0010] Preferably, the adjusting component includes a screw rotatably mounted in the adjusting chamber, a movable block that slides in the adjusting chamber is threadedly connected to the screw, iron blocks that are magnetically attracted to the magnet are fixedly connected to both sides of the movable block, a guide rod for sliding the two sets of iron blocks is fixedly connected in the adjusting chamber, the upper end of the screw passes through the sampling box and is driven by a second motor, and a second protective cover for protecting the second motor is fixedly connected to the upper surface of the sampling box.

[0011] Preferably, the connection structure includes a connecting seat, the connecting seat having a sliding hole for the guide post to slide, a protruding beam fixedly connected to the inner wall of the sliding hole, and a guide groove for the protruding beam to slide on the outer side of the guide post.

[0012] Preferably, the driving mechanism includes a base plate mounted on one side of the connecting seat, a first cover is provided on the base plate, a first motor is provided inside the first cover, the output shaft of the first motor is connected to a rotating shaft through a coupling, one end of the rotating shaft passes through the base plate and is fixedly connected to a driving gear, and a toothed groove for the driving gear to mesh is provided on the outer side of the guide post.

[0013] Preferably, the maintenance cover includes a cover body fixedly connected to the top of the storage tank, the upper end of the guide column fixedly connected to the top of the cover body, and an inspection port provided on the outer side of the cover body, with a sealing cap threaded onto the inspection port.

[0014] Preferably, the connecting seat has a U-shaped cross-section, and a side groove communicating with the toothed groove is provided on the side of the connecting seat away from the sampling box. A control panel is provided on the outside of the storage tank.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model mainly utilizes the cooperation between the guide column, connecting structure, driving mechanism, displacement sensor, and sampling mechanism. The driving mechanism can drive the connecting structure to slide up and down along the guide column, and the displacement sensor can accurately control the depth of the sampling box in the storage tank to meet the oil sampling needs at different locations. Furthermore, the sampling mechanism controls the position of the piston through the adjustment component, thereby facilitating the extraction of oil. It has a high degree of automation, avoids manual sampling errors and safety risks, and improves sampling efficiency and accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the storage tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the driving mechanism and connection structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the sampling mechanism of this utility model.

[0021] In the diagram: 1. Storage tank; 2. Control panel; 3. Inspection cover; 31. Cover body; 32. Inspection port; 33. Sealing cover; 4. Guide post; 41. Toothed groove; 42. Guide groove; 5. Connection structure; 51. Connecting seat; 52. Sliding hole; 53. Protruding beam; 54. Side groove; 6. Drive mechanism; 61. Base plate; 62. First protective cover; 63. First motor; 64. Rotating shaft; 65. Drive gear; 7. Sampling mechanism; 71. Sampling box; 72. Partition; 73. Sampling chamber; 74. Adjustment chamber; 75. Adjusting component; 751. Second motor; 752. Screw; 753. Moving block; 754. Iron block; 755. Guide rod; 76. Piston; 761. Magnet; 762. Sealing sleeve; 77. Inlet / outlet; 78. Second protective cover; 8. Displacement sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: an automatic sampling device for storage tanks, comprising:

[0024] Storage tank 1, and maintenance cover 3 installed on top of storage tank 1;

[0025] A guide column 4 is installed inside the storage tank 1, and a connecting structure 5 is slidably installed on the guide column 4. A drive mechanism 6 for adjusting the position of the connecting structure 5 is installed on the connecting structure 5, and a sampling mechanism 7 for sampling oil is installed on the connecting structure 5.

[0026] The sampling mechanism 7 includes a sampling box 71. A partition 72 is fixedly connected to the inner cavity of the sampling box 71. The inner cavity of the sampling box 71 is divided into a sampling chamber 73 and an adjustment chamber 74 by the partition 72. A piston 76 for extracting oil is installed in the sampling chamber 73. An adjustment component 75 for controlling the position of the piston 76 is installed in the adjustment chamber 74. A displacement sensor 8 is installed on the drive mechanism 6 to monitor the sampling box 71 at different depths in the storage tank 1.

[0027] The piston component 76 includes a magnet 761 and a sealing sleeve 762. The magnet 761 is located in the inner cavity of the sealing sleeve 762. The sampling box 71 has an inlet and outlet 77 on one side that communicates with the sampling chamber 73. The sealing sleeve 762 of the piston component 76 is made of a special elastic material. During the oil extraction process, it can automatically adjust the sealing force according to the pressure of the sampling chamber 73 to ensure reliable sampling of high-viscosity oils, while avoiding the problem of sleeve aging caused by excessive compression.

[0028] The adjusting component 75 includes a screw 752 rotatably installed in the adjusting chamber 74. A movable block 753 that slides in the adjusting chamber 74 is threadedly connected to the screw 752. Iron blocks 754 that are magnetically attracted to magnets 761 are fixedly connected to both sides of the movable block 753. A guide rod 755 for sliding the two sets of iron blocks 754 is fixedly connected in the adjusting chamber 74. The upper end of the screw 752 passes through the sampling box 71 and is driven by a second motor 751. A second cover 78 that protects the second motor 751 is fixedly connected to the upper surface of the sampling box 71. The screw 752 driven by the second motor 751 can adjust the position of the iron blocks 754 on the movable block 753. Then, under the magnetic attraction coupling between magnets 761 and iron blocks 754, the position of the adjusting component 75 is adjusted. The non-contact driving method completely solves the dynamic sealing problem of traditional mechanical transmission, avoids the risk of oil leakage, and is suitable for the special environment of high pressure, flammable and explosive in storage tank 1.

[0029] The connecting structure 5 includes a connecting seat 51, on which a sliding hole 52 is provided for the guide column 4 to slide. A protruding beam 53 is fixedly connected to the inner wall of the sliding hole 52. A guide groove 42 is provided on the outer side of the guide column 4 for the protruding beam 53 to slide. The stability of the sampling mechanism 7 when it moves is improved by the protrusion sliding in the guide groove 42.

[0030] The drive mechanism 6 includes a base plate 61 mounted on one side of the connecting seat 51. A first cover 62 is provided on the base plate 61, and a first motor 63 is provided inside the first cover 62. The output shaft of the first motor 63 is connected to a rotating shaft 64 via a coupling. One end of the rotating shaft 64 passes through the base plate 61 and is fixedly connected to a drive gear 65. A toothed groove 41 is provided on the outer side of the guide post 4 for the drive gear 65 to mesh. The first motor 63 drives the drive gear 65 to mesh with the toothed groove 41, thereby facilitating the adjustment of the depth of the connecting structure 5 in the storage tank 1. This facilitates the sampling of oil at different depths under the action of the displacement sensor 8, enabling precise point sampling of layered oil and meeting the requirements of fine-grained testing.

[0031] The inspection cover 3 includes a cover 31 fixedly connected to the top of the storage tank 1, the upper end of the guide column 4 fixedly connected to the top of the inner part of the cover 31, and an inspection port 32 provided on the outer side of the cover 31. A sealing cap 33 is threadedly connected to the inspection port 32. The sampling mechanism 7 can be separated from the oil through the cover 31, which makes it convenient for staff to take out the sampled oil and improves the sampling efficiency.

[0032] The connecting seat 51 has a U-shaped cross section. The side of the connecting seat 51 away from the sampling box 71 has a side groove 54 that communicates with the tooth groove 41. The storage tank 1 has a control panel 2 on its outside. The control panel 2 enables automated operation and monitoring. The side groove 54 facilitates the meshing of the drive gear 65 with the tooth groove 41.

[0033] In use, a command is issued via the control panel 2, activating the first motor 63 of the drive mechanism 6. This motor, through a coupling, drives the rotating shaft 64, causing the drive gear 65 to rotate. The drive gear 65 meshes with the toothed groove 41 on the outer side of the guide post 4, causing the connecting structure 5 to slide up and down along the guide post 4. The displacement sensor 8 monitors the position of the sampling box 71 in real time, ensuring it reaches the target sampling depth. Once the designated position is reached, the second motor 751 of the sampling mechanism 7 drives the screw 752 to rotate, causing the threaded moving block 753 to slide the iron block 754 along the guide rod 755. The iron block 754 is driven by magnetic attraction. The piston 76 moves within the sampling chamber 73, facilitating the extraction of oil samples at different depths into the sampling chamber 73. After sampling, the drive mechanism 6 drives the sampling box 71 back to its initial position. The operator can open the sealing cover 33 to engage the sampling bottle with the inlet / outlet 77, and then push the oil into the sampling bottle during the resetting process of the adjusting component 75 to complete the sampling work. Throughout the process, the convex beam 53 of the connecting structure 5 slides within the guide groove 42 of the guide column 4 to ensure stable operation. The sealing cover 33 of the inspection cover 3 ensures the sealing of the storage tank 1, improving the efficiency of sampling oil samples at different depths.

[0034] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic sampling device for storage tanks, characterized in that, include: Storage tank (1), and maintenance cover (3) installed on top of storage tank (1); A guide post (4) is provided inside the storage tank (1), and a connecting structure (5) is slidably installed on the guide post (4). A drive mechanism (6) for adjusting the position of the connecting structure (5) is installed on the connecting structure (5), and a sampling mechanism (7) for sampling oil is installed on the connecting structure (5). The sampling mechanism (7) includes a sampling box (71), and a partition (72) is fixedly connected to the inner cavity of the sampling box (71). The inner cavity of the sampling box (71) is divided into a sampling chamber (73) and an adjustment chamber (74) by the partition (72). A piston (76) for extracting oil is provided in the sampling chamber (73). An adjustment component (75) for controlling the position of the piston (76) is provided in the adjustment chamber (74). A displacement sensor (8) for monitoring the sampling box (71) at different depths in the storage tank (1) is provided on the drive mechanism (6).

2. The automatic sampling device for storage tanks according to claim 1, characterized in that: The piston component (76) includes a magnet (761) and a sealing sleeve (762). The magnet (761) is disposed in the inner cavity of the sealing sleeve (762). The sampling box (71) has an inlet and outlet (77) on one side that communicates with the sampling chamber (73).

3. The automatic sampling device for storage tanks according to claim 2, characterized in that: The adjusting component (75) includes a screw (752) rotatably installed in the adjusting chamber (74). A movable block (753) that slides in the adjusting chamber (74) is threaded onto the screw (752). Iron blocks (754) that are magnetically attracted to the magnet (761) are fixedly connected to both sides of the movable block (753). A guide rod (755) for sliding two sets of iron blocks (754) is fixedly connected in the adjusting chamber (74). The upper end of the screw (752) passes through the sampling box (71) and is driven by the second motor (751). A second cover (78) that protects the second motor (751) is fixedly connected to the upper surface of the sampling box (71).

4. The automatic sampling device for storage tanks according to claim 3, characterized in that: The connecting structure (5) includes a connecting seat (51), on which a sliding hole (52) is provided for the guide post (4) to slide. A protruding beam (53) is fixedly connected to the inner wall of the sliding hole (52), and a guide groove (42) is provided on the outer side of the guide post (4) for the protruding beam (53) to slide.

5. The automatic sampling device for storage tanks according to claim 4, characterized in that: The drive mechanism (6) includes a base plate (61) mounted on one side of the connecting seat (51). A first cover (62) is provided on the base plate (61). A first motor (63) is provided inside the first cover (62). The output shaft of the first motor (63) is connected to a rotating shaft (64) via a coupling. One end of the rotating shaft (64) passes through the base plate (61) and is fixedly connected to a drive gear (65). A toothed groove (41) for the drive gear (65) to mesh is provided on the outer side of the guide post (4).

6. The automatic sampling device for storage tanks according to claim 1, characterized in that: The inspection cover (3) includes a cover (31) fixedly connected to the top of the storage tank (1), the upper end of the guide post (4) is fixedly connected to the top of the cover (31), and an inspection port (32) is provided on the outside of the cover (31), with a sealing cap (33) threaded onto the inspection port (32).

7. An automatic sampling device for storage tanks according to claim 5, characterized in that: The connecting seat (51) has a U-shaped cross section. A side groove (54) communicating with the toothed groove (41) is provided on the side of the connecting seat (51) away from the sampling box (71). A control panel (2) is provided on the outside of the storage tank (1).

Images