Sampling device for gas-tight seal detection of petroleum products

Abstract

The utility model relates to the technical field of petroleum detection, and discloses a sampling device for gas-tight seal detection of petroleum products, which comprises a top plate, grips are fixedly mounted on two sides of the top of the top plate, a plugging plate is fixedly mounted on the bottom side of the top plate, and stacked sealing rings are arranged on the outer side of the plugging plate. A positioning rod is fixedly mounted on the bottom side of the plugging plate, a sampling assembly is arranged on the outer side of the positioning rod, and a sampling pipe is arranged at a sampling opening in the bottom of the sampling assembly; the sleeve can be pushed to slide along the outer side of the positioning rod to adjust the height by twisting the screw rod away from the positioning rod, similarly, the screw rod is twisted to extrude the outer side of the positioning rod for positioning, and the piston block is driven to slide upwards by starting the electric telescopic rod, so that negative pressure is generated in the sampling barrel, and the plug block is driven to slide upwards to move out of the fixed barrel. At the moment, a petroleum sample can be extracted into the sampling barrel through the guide pipe, so that petroleum products at different liquid levels can be conveniently sampled according to the actual size of the oil tank on site.

Description

Technical Field

[0001] The utility model relates to the technical field of petroleum detection, in particular to a sampling device for detecting gas seals of petroleum products. Background Art

[0002] Petroleum is a viscous, dark brown liquid known as the "blood of industry". Petroleum is stored in some areas of the upper crust. Its main components are a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. It is one of the main objects of geological exploration. In the process of petroleum detection, sampling devices are usually used to sample the petroleum in the oil tank.

[0003] For example, Chinese patent publication number CN216621869U discloses a sampling device for petroleum product testing, comprising a sampling bottle and a cover body, a sealing rubber gasket provided on the inner wall of the cover body, a sampling valve provided on the upper side wall of the sampling bottle, an oil inlet pipe provided at the bottom of the sampling valve, which is connected to the internal cavity of the valve body, and the oil inlet pipe is connected to the sampling pipe via a connecting pipe sleeve. The sampling pipe includes a sampling main pipe and a first auxiliary oil inlet pipe, a second auxiliary oil inlet pipe, and a third auxiliary oil inlet pipe, which are sequentially arranged on the sampling main pipe from top to bottom. An observation window is provided on the side wall of the sampling bottle, and the observation window is provided with a capacity scale line. An air pump is provided on the top of the cover body, and a vent is provided in the middle position of the cover body. The air pump is electrically connected to a battery provided on the top of the cover body and is powered by the battery. The air inlet of the air pump extends into the vent of the cover body, and a baffle mechanism is movably provided on the cover body to open or close the vent.

[0004] In the process of implementing this application, the inventor discovered that there are at least the following problems in this technology: although the above technical solution can sample oil layers of different liquid levels through the three-layer auxiliary oil inlet pipes arranged step by step, the positions of the three-layer oil inlet pipes are fixed and cannot be used for sampling oil tanks of different volumes. Therefore, further improvements can be made. Utility Model Content

[0005] In order to solve the above-mentioned problems, the present invention provides the following technical solutions: a sampling device for detecting the gas seal of petroleum products, comprising a top plate, handles are fixedly installed on both sides of the top of the top plate, a sealing plate is fixedly installed on the bottom side of the top plate, stacked sealing rings are provided on the outside of the sealing plate, a positioning rod is fixedly installed on the bottom side of the sealing plate, a sampling assembly is provided on the outside of the positioning rod, and a sampling tube is provided at the bottom sampling port of the sampling assembly.

[0006] As an optimization, the positioning rods are grouped into two, and three groups are arranged in an array on the bottom side of the blocking plate, and the sampling components are arranged corresponding to the three groups of positioning rods.

[0007] As an optimization, the sampling assembly includes a sleeve that is slidably mounted on the outside of the positioning rod, a connecting plate is fixedly installed between the sleeves on both sides, a sampling tube is fixedly installed between the upper and lower groups of connecting plates, an electric telescopic rod is fixedly installed on the top of the sampling tube, a piston block is fixedly installed on the bottom of the telescopic end of the electric telescopic rod, and the piston block is slidably connected to the inside of the connecting plate. By starting the electric telescopic rod to extend and retract, the piston block will be driven to slide inside the connecting plate, and then the petroleum product will be sampled from the sampling port.

[0008] As an optimization, the sleeves correspond to two positioning rods in a group, and two groups are symmetrically arranged up and down, and the connecting plates correspond to the two groups of sleeves symmetrically arranged up and down.

[0009] As an optimization, threaded barrels are fixedly installed on both sides of the sleeve, and a screw is screwed inside the threaded barrel. The screw passes into the interior of the sleeve and abuts against the outside of the positioning rod. By twisting the screw clockwise inside the threaded barrel, it will be squeezed against the outside of the positioning rod for positioning.

[0010] As an optimization, the sampling tube includes a fixed cylinder fixedly connected to the bottom center of the connecting plate, a conduit is installed on the outside of the fixed cylinder, a block is slidably connected to the inside of the fixed cylinder, and a spring is fixedly installed between the block and the bottom wall of the fixed cylinder. When sampling is sucked in through the connecting plate, negative pressure will be generated to drive the block to slide upward along the inner wall of the fixed cylinder, and then the block will be moved out of the fixed cylinder. At this time, the oil sample can be extracted through the conduit.

[0011] As an optimization, the conduit is "L"-shaped, and four conduits are installed in an array outside the fixed cylinder.

[0012] The beneficial effects of the utility model are:

[0013] 1. The sampling device for detecting the gas seal of petroleum products starts the electric telescopic rod to drive the piston block to slide upward, which will generate negative pressure in the sampling tube. Therefore, it will drive the block to slide upward along the inner wall of the fixed tube and move out of the fixed tube. At this time, the petroleum sample can be drawn into the sampling tube through the catheter. After sampling, the spring will drive the block to reset and block it in the fixed tube to prevent sample leakage, thereby facilitating the sampling of petroleum products.

[0014] 2. The sampling device for detecting the gas seal of petroleum products rotates counterclockwise in the threaded barrel, which moves the screw away from the positioning rod. At this time, the sleeve can be pushed to slide along the outside of the positioning rod to adjust the height. Similarly, if the screw is rotated clockwise, it will be squeezed on the outside of the positioning rod for positioning. This makes it convenient to sample petroleum products at different liquid levels according to the actual size of the oil tank on site.

[0015] 3. The sampling device for detecting the gas seal of petroleum products can push the internal petroleum to squeeze the block by activating the electric telescopic rod to drive the piston block to slide downward along the inner wall of the fixed cylinder, so that the block slides downward along the inner wall of the fixed cylinder until it moves to the bottom of the end of the catheter entering the fixed cylinder. The petroleum sample can be discharged from the catheter to the outside, thereby facilitating the discharge of the collected petroleum sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the sampling structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the sampling tube of the utility model;

[0019] Figure 4 This is a schematic diagram of the sampling tube structure of the utility model.

[0020] In the figure: 1. Top plate; 2. Handle; 3. Sealing plate; 4. Sealing ring; 5. Positioning rod; 6. Sampling assembly; 7. Sampling tube; 8. Sleeve; 9. Connecting plate; 10. Sampling cylinder; 11. Electric telescopic rod; 12. Piston block; 13. Threaded cylinder; 14. Screw; 15. Fixed cylinder; 16. Conduit; 17. Block; 18. Spring. DETAILED DESCRIPTION

[0021] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1A sampling device for detecting gas seals of petroleum products comprises a top plate 1, handles 2 are fixedly mounted on both sides of the top of the top plate 1, a sealing plate 3 is fixedly mounted on the bottom side of the top plate 1, a stacked sealing ring 4 is provided on the outside of the sealing plate 3, a positioning rod 5 is fixedly mounted on the bottom side of the sealing plate 3, two positioning rods 5 form a group, and three groups are arranged in an array on the bottom side of the sealing plate 3, a sampling assembly 6 is arranged on the outside of the positioning rod 5, the sampling assembly 6 is arranged corresponding to the three groups of positioning rods 5, and a sampling tube 7 is provided at the bottom sampling port of the sampling assembly 6.

[0024] See also Figure 2-3 The sampling assembly 6 includes a sleeve 8 slidably sleeved on the outside of the positioning rod 5. The sleeves 8 correspond to two positioning rods 5 in a group, and two groups are symmetrically arranged up and down. A connecting plate 9 is fixedly installed between the sleeves 8 on both sides. The connecting plates 9 are symmetrically arranged up and down corresponding to the two groups of sleeves 8. A sampling cylinder 10 is fixedly installed between the upper and lower groups of connecting plates 9. An electric telescopic rod 11 is fixedly installed on the top of the sampling cylinder 10. A piston block 12 is fixedly installed at the bottom of the telescopic end of the electric telescopic rod 11, and the piston block 12 is slidably connected to the inside of the connecting plate 9. By starting the electric telescopic rod 11 to extend and retract, the piston block 12 will be driven to slide inside the connecting plate 9, and then the petroleum product will be sampled from the sampling port;

[0025] See also Figure 2-3 , threaded cylinders 13 are fixedly installed on both sides of the sleeve 8, and a screw 14 is screwed inside the threaded cylinder 13, and the screw 14 passes into the interior of the sleeve 8 and abuts against the outside of the positioning rod 5. By turning the screw 14 clockwise inside the threaded cylinder 13, it will be squeezed against the outside of the positioning rod 5 for positioning. Similarly, turning the screw 14 counterclockwise will loosen the screw 14. At this time, the sleeve 8 can be pushed to slide along the outside of the positioning rod 5 to adjust the height, thereby facilitating sampling of petroleum products at different liquid levels;

[0026] See also Figure 4 The sampling tube 7 includes a fixed cylinder 15 fixedly connected to the bottom center of the connecting plate 9. A conduit 16 is installed on the outside of the fixed cylinder 15. The conduit 16 is "L"-shaped, and four conduits 16 are installed in an array on the outside of the fixed cylinder 15. A block 17 is slidably connected to the inside of the fixed cylinder 15. A spring 18 is fixedly installed between the block 17 and the bottom wall of the fixed cylinder 15. When sampling is done through the connecting plate 9, negative pressure is generated to drive the block 17 to slide upward along the inner wall of the fixed cylinder 15, and then the block 17 is moved out of the fixed cylinder 15. At this time, the oil sample can be extracted through the conduit 16, and after sampling, the spring 18 will drive the block 17 to reset downward and block it in the fixed cylinder 15 to prevent the sample from leaking.

[0027] When in use, first, hold the handle 2 with both hands to lift the entire device, and lower it into the oil tank. The sealing ring 4 on the outside of the blocking plate 3 is sealed at the filling port of the oil tank to prevent the oil from volatilizing outwards. Then, the electric telescopic rod 11 can be started to drive the piston block 12 to slide upward along the inner wall of the sampling cylinder 10, thereby generating negative pressure in the sampling cylinder 10, so that the blocking block 17 will be driven to slide upward along the inner wall of the fixed cylinder 15, and then the blocking block 17 will be moved out of the fixed cylinder 15. At this time, the oil sample can be drawn into the sampling cylinder 10 through the guide tube 16. After sampling, the spring 18 will drive the blocking block 17 to reset and block it in the fixed cylinder 15 to prevent the sample from leaking out.

[0028] Among them, by turning the screw 14 counterclockwise inside the threaded barrel 13, the screw 14 will be moved away from the positioning rod 5. At this time, the sleeve 8 can be pushed to slide along the outside of the positioning rod 5 to adjust the height. Similarly, by turning the screw 14 clockwise, it will be squeezed against the outside of the positioning rod 5 for positioning, thereby facilitating sampling of petroleum products at different liquid levels according to the size of the oil tank;

[0029] After taking out the sample, the device is taken out of the oil tank by holding the handle 2, and then the electric telescopic rod 11 is started to drive the piston block 12 to slide downward along the inner wall of the fixed cylinder 15, so as to push the internal oil to squeeze the block 17, so that the block 17 slides downward along the inner wall of the fixed cylinder 15 until it moves to the bottom of the end of the conduit 16 that passes into the fixed cylinder 15, and the oil sample can be discharged from the conduit 16 to the outside.

[0030] To sum up, the sampling device for detecting the gas seal of petroleum products drives the piston block 12 to slide upward by starting the electric telescopic rod 11, which will generate negative pressure in the sampling tube 10, so it will drive the blocking block 17 to slide upward along the inner wall of the fixed tube 15 and move out of the fixed tube 15. At this time, the petroleum sample can be drawn into the sampling tube 10 through the conduit 16, and then the spring 18 will drive the blocking block 17 to reset downward and block it in the fixed tube 15 after sampling, thereby preventing the sample from leaking, thereby facilitating the sampling of petroleum products.

[0031] By turning the screw 14 counterclockwise inside the threaded barrel 13, the screw 14 will be moved away from the positioning rod 5. At this time, the sleeve 8 can be pushed to slide along the outside of the positioning rod 5 to adjust the height. Similarly, by turning the screw 14 clockwise, it will be squeezed on the outside of the positioning rod 5 for positioning, thereby facilitating sampling of petroleum products at different liquid levels according to the actual size of the oil tank on site.

[0032] By starting the electric telescopic rod 11 to drive the piston block 12 to slide downward along the inner wall of the fixed cylinder 15, the internal oil can be pushed to squeeze the block 17, so that the block 17 slides downward along the inner wall of the fixed cylinder 15 until it moves to the bottom of the end of the conduit 16 that enters the fixed cylinder 15. The oil sample can be discharged from the conduit 16 to the outside, thereby facilitating the discharge of the collected oil sample.

[0033] In the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can all be customized according to the description and the drawings.

[0035] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A sampling device for detecting gas seals of petroleum products, comprising a top plate (1), characterized in that: Handles (2) are fixedly mounted on both sides of the top of the top plate (1), a blocking plate (3) is fixedly mounted on the bottom side of the top plate (1), a stacked sealing ring (4) is provided on the outside of the blocking plate (3), a positioning rod (5) is fixedly mounted on the bottom side of the blocking plate (3), a sampling assembly (6) is provided on the outside of the positioning rod (5), and a sampling tube (7) is provided at the bottom sampling port of the sampling assembly (6).

2. The sampling device for detecting gas seal of petroleum products according to claim 1, characterized in that: The positioning rods (5) are arranged in groups of two, and three groups are arranged in an array on the bottom side of the blocking plate (3). The sampling components (6) are arranged corresponding to the three groups of positioning rods (5).

3. The sampling device for detecting gas seal of petroleum products according to claim 2, characterized in that: The sampling assembly (6) includes a sleeve (8) slidably mounted on the outside of the positioning rod (5), a connecting plate (9) is fixedly mounted between the sleeves (8) on both sides, a sampling cylinder (10) is fixedly mounted between the upper and lower groups of connecting plates (9), an electric telescopic rod (11) is fixedly mounted on the top of the sampling cylinder (10), a piston block (12) is fixedly mounted on the bottom of the telescopic end of the electric telescopic rod (11), and the piston block (12) is slidably connected to the inside of the connecting plate (9).

4. The sampling device for detecting gas seal of petroleum products according to claim 3, characterized in that: The sleeves (8) correspond to two positioning rods (5) in a group, and two groups are symmetrically arranged in the upper and lower parts. The connecting plates (9) correspond to the two groups of sleeves (8) and are symmetrically arranged in the upper and lower parts.

5. The sampling device for detecting gas seal of petroleum products according to claim 3, characterized in that: Threaded cylinders (13) are fixedly mounted on both sides of the sleeve (8), a screw (14) is screwed into the interior of the threaded cylinder (13), and the screw (14) passes into the interior of the sleeve (8) and abuts against the outside of the positioning rod (5).

6. The sampling device for detecting gas seal of petroleum products according to claim 5, characterized in that: The sampling tube (7) includes a fixed cylinder (15) fixedly connected to the bottom center of the connecting plate (9), a conduit (16) is installed on the outside of the fixed cylinder (15), a blocking block (17) is slidably connected to the inside of the fixed cylinder (15), and a spring (18) is fixedly installed between the blocking block (17) and the bottom wall of the fixed cylinder (15).

7. The sampling device for detecting gas seal of petroleum products according to claim 6, characterized in that: The conduits (16) are L-shaped, and four conduits (16) are installed in an array outside the fixed cylinder (15).

Images