Split type buffer tank for oil gas recovery

Abstract

The utility model discloses a kind of split buffer tanks for oil gas recovery, including upper tank body and be connected with lower tank body below upper tank body, upper tank body is connected with air inlet pipeline, lower tank body is connected with air outlet pipeline, the bottom end of upper tank body has upper interface, the upper interface is butt joint with lower interface connected with lower tank body top, and upper interface is provided with multiple limit posts, the limit post passes through lower interface, the lower tank body is rotatably connected with rotating ring, the rotating ring is connected with multiple positioning blocks, the positioning block is pressed in limit post, and positioning block is connected with the drive mechanism for driving multiple positioning blocks synchronous rotation, upper tank body and lower tank body inside are provided with flow guide separation mechanism. The utility model improves the stability of upper tank body and lower tank body connection, achieves the purpose of quick assembly, can also realize the separation of both, facilitate to clean and maintain inside tank body, facilitate subsequent use, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas recovery technology, specifically a split-type buffer tank for oil and gas recovery. Background Technology

[0002] A vapor recovery system is an environmentally friendly device used during gasoline loading, unloading, or storage to collect and recover volatile organic compounds (VOCs). It uses technologies such as condensation, adsorption, absorption, or membrane separation to liquefy and recover the VOCs that would otherwise be released into the air, while simultaneously releasing clean air. This system effectively reduces environmental pollution and safety hazards, and achieves energy recycling, making it a crucial environmental protection device for oil depots, gas stations, and the petrochemical industry.

[0003] In oil and gas recovery systems, buffer tanks are mainly used to alleviate pressure fluctuations during oil and gas transportation, achieve preliminary gas-liquid separation, and prevent damage to subsequent equipment due to sudden load changes or operation with liquid.

[0004] Existing buffer tanks are usually designed as a single unit. When cleaning and maintaining the inside of the tank, the manhole on the tank is usually opened and a high-pressure water gun is used to flush the tank wall, bottom and internal components. This is not only cumbersome, but also results in the tank wall and the corners of internal components (such as spiral guide plates) not being cleaned thoroughly enough, which will affect subsequent use. Utility Model Content

[0005] The purpose of this utility model is to provide a split-type buffer tank for oil and gas recovery, which improves the stability of the connection between the upper tank and the lower tank, achieves the purpose of rapid assembly, and can also separate the two, which facilitates the cleaning and maintenance of the tank interior and facilitates subsequent use, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a split-type buffer tank for oil and gas recovery, comprising an upper tank and a lower tank connected below the upper tank. The upper tank is connected to an air inlet pipe, and the lower tank is connected to an air outlet pipe. The bottom end of the upper tank has an upper interface, which is connected to a lower interface connected to the top of the lower tank. The upper interface is provided with multiple limiting posts, which pass through the lower interface. The lower tank is rotatably connected to a rotating ring, which is connected to multiple positioning blocks. The positioning blocks are pressed against the limiting posts, and the positioning blocks are connected to a driving mechanism for driving the multiple positioning blocks to rotate synchronously. A flow guiding and separation mechanism is provided inside the upper and lower tanks.

[0007] Preferably, the side of the limiting post is provided with a positioning groove, and the positioning block is connected to the positioning groove.

[0008] Preferably, the drive mechanism includes a housing, a positioning bolt, a handle, a worm gear, and a toothed part. The housing is connected to the outside of the lower tank body, the worm gear is rotatably connected to the housing body, and the worm gear is connected to the toothed part. The toothed part is disposed on the rotating ring, the handle is connected to the end of the worm gear, and the positioning bolt is used for positioning the handle.

[0009] Preferably, the housing is slidably connected to the rotating ring.

[0010] Preferably, the positioning bolt is threaded to the handle, and the end of the housing is provided with a connecting groove, the end of the positioning bolt being connected to the connecting groove.

[0011] Preferably, the flow guiding and separating mechanism includes a connecting rod, a spiral guide plate, multiple flow guiding grooves, multiple protrusions, and a locking component. The spiral guide plate is located inside the upper tank and the lower tank. The flow guiding grooves are disposed on the surface of the spiral guide plate. The connecting rod is connected to the spiral guide plate. The protrusions are used to limit the movement of the spiral guide plate. The locking component is locked to the connecting rod.

[0012] Preferably, a positioning seat is connected to the inner top of the upper tank body. The positioning seat is provided with multiple grooves, the protrusion is connected to the grooves, and the protrusion is fixedly connected to the connecting rod.

[0013] Preferably, the locking element is threadedly connected to the connecting rod.

[0014] Preferably, the opposing surfaces of the upper and lower interfaces, as well as the opposing surfaces of the upper and lower tanks, are connected with sealing gaskets.

[0015] Preferably, a groove is provided on the outer side of the lower tank body, a sliding block is connected to the rotating ring, the sliding block is slidably connected to the groove, and the cross-section of the groove is a T-shaped structure.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is equipped with a driving mechanism and multiple positioning blocks. Rotating the handle drives the worm gear to rotate, which in turn drives the rotating ring to rotate, so that the multiple positioning blocks rotate synchronously. The positioning blocks press against the limiting post, thereby limiting the limiting post and improving the stability of the connection between the upper and lower tanks, achieving the purpose of rapid assembly. Furthermore, rotating the handle drives the worm gear to rotate, which in turn drives the rotating ring to rotate, facilitating the separation of the positioning blocks from the limiting post and loosening the limiting post. At this time, the upper and lower tanks are in a loosened state, which facilitates their separation, makes it convenient for cleaning and maintenance of the tank interior, and facilitates subsequent use, making it highly practical. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This is a schematic diagram of the connection structure between the upper tank and the lower tank of this utility model;

[0020] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0021] Figure 5 This is a schematic diagram of the flow guiding and separating mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure between the connecting rod and the positioning seat of this utility model;

[0023] Figure 7 This is a schematic diagram of the connection structure between the upper and lower interfaces of this utility model.

[0024] In the diagram: 1. Upper tank; 2. Lower tank; 3. Upper interface; 4. Lower interface; 5. Inlet pipe; 6. Outlet pipe; 7. Locking element; 8. Housing; 9. Rotating ring; 10. Sealing gasket; 11. Positioning block; 12. Positioning groove; 13. Limiting post; 14. Positioning bolt; 15. Handle; 16. Worm gear; 17. Tooth; 18. Connecting rod; 19. Spiral guide plate; 20. Guide groove; 21. Positioning seat; 22. Protrusion; 23. Groove; 24. Sliding block. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 7This utility model provides a split-type buffer tank for oil and gas recovery, including an upper tank 1 and a lower tank 2 connected below the upper tank 1. An air inlet pipe 5 is tangentially connected to the upper tank 1, guiding the oil and gas to form a stable swirling flow along the tank wall, avoiding direct contact with the internal spiral guide plate 19. The oil and gas rotate along the spiral guide plate 19, and droplets are thrown towards the tank wall under centrifugal force, flowing into the accumulation area along the guide groove 20. The accumulation area is located at the bottom of the lower tank 2, and a drain port is provided at the bottom of the lower tank 2. The drain port is connected to an electric drain valve, which automatically opens to drain when the liquid level reaches a set value (300mm). The lower tank 2 is connected to an air outlet pipe 6, from which the separated gas is discharged. The bottom of the upper tank 1 has an upper interface 3, which is connected to the lower interface 4 connected to the top of the lower tank 2. The upper interface 3 is provided with multiple limiting posts 13, which pass through the lower interface 4. The lower tank 2 is rotatably connected to a rotating ring 9, which is connected to multiple positioning blocks 11. The positioning blocks 11 are pressed against the limiting posts 13, and the positioning blocks 11 are connected to a drive mechanism for driving the multiple positioning blocks 11 to rotate synchronously. The upper tank 1 and the lower tank 2 are provided with a flow guiding and separation mechanism.

[0027] Three limiting posts 13 are typically provided, with an included angle of 120° between adjacent posts. Limiting holes are provided on the lower interface 4, and these holes match the limiting posts 13. During tank installation, the three limiting posts 13 are passed through the corresponding limiting holes to prevent relative rotation between the upper tank 1 and the lower tank 2, achieving initial limiting. Then, a drive mechanism drives the rotating ring 9 to rotate, causing the three positioning blocks 11 to rotate synchronously. This presses the positioning blocks 11 against the limiting posts 13, thus limiting and fixing the limiting posts 13 and improving the stability of the connection between the upper tank 1 and the lower tank 2.

[0028] The side of the limiting post 13 is provided with a positioning groove 12, and the positioning block 11 is connected to the positioning groove 12. When the positioning block 11 is pressed against the positioning groove 12, it will apply downward pressure to the limiting post 13, thereby improving the tightness of the connection between the upper tank 1 and the lower tank 2.

[0029] The drive mechanism includes a housing 8, positioning bolts 14, a handle 15, a worm gear 16, and teeth 17. The housing 8 is connected to the outside of the lower tank 2. The worm gear 16 is rotatably connected inside the housing 8 and is connected to the teeth 17, which is located on the rotating ring 9. The handle 15 is connected to the end of the worm gear 16, and the positioning bolts 14 are used to position the handle 15. Rotating the handle 15 drives the worm gear 16 to rotate. The worm gear 16 engages with the teeth 17 to rotate the rotating ring 9, which in turn drives the three positioning blocks 11 to rotate synchronously. This facilitates connection or separation with the limiting post 13, enabling the tank to be quickly assembled or disassembled, making operation simple and convenient. The connection between the worm gear 16 and the teeth 17 is a worm gear structure, which transmits power through staggered shaft meshing. It features a large reduction ratio and strong self-locking properties, preventing the rotating ring 9 from rotating and improving the stability of the three positioning blocks 11.

[0030] The housing 8 and the rotating ring 9 are connected in a sealed sliding connection, which makes the inside of the housing 8 a relatively closed space, preventing water stains from entering the housing 8 during tank cleaning and affecting the transmission effect of internal parts, thus playing a good protective role.

[0031] The positioning bolt 14 is threadedly connected to the handle 15. A connecting groove is provided at the end of the housing 8, and the end of the positioning bolt 14 is connected to the connecting groove. Rotating the positioning bolt 14 so that its end is inserted into the connecting groove further limits and locks the handle 15, preventing the positioning block 11 from loosening due to accidental rotation of the handle 15.

[0032] The flow guiding and separating mechanism includes a connecting rod 18, a spiral guide plate 19, multiple flow guide grooves 20, multiple protrusions 22, and a locking element 7. The spiral guide plate 19 is located inside the upper tank 1 and the lower tank 2. The flow guide grooves 20 are set on the surface of the spiral guide plate 19 and have a V-shaped structure. The connecting rod 18 is connected to the spiral guide plate 19, the protrusions 22 are used to limit the spiral guide plate 19, and the locking element 7 is locked to the connecting rod 18.

[0033] When the upper tank 1 is separated from the lower tank 2, the locking element 7 is operated to loosen the connecting rod 18, thereby loosening the spiral guide plate 19, making it easier to disassemble the spiral guide plate 19, so that the spiral guide plate 19 can be cleaned more thoroughly and achieve a good deep cleaning purpose.

[0034] During the installation of the spiral guide plate 19, the connecting rod 18 is passed through the positioning seat 21, so that the protrusion 22 is connected with the groove 23 of the positioning seat 21 to prevent the spiral guide plate 19 from rotating. Finally, the connecting rod 18 is locked with the locking piece 7 to improve the stability of the installation of the spiral guide plate 19.

[0035] The upper tank body 1 has a positioning seat 21 connected to its inner top. The positioning seat 21 is provided with multiple grooves 23, usually two of which are distributed opposite each other. A protrusion 22 is connected to the grooves 23 and is fixedly connected to the connecting rod 18.

[0036] The locking element 7 is threadedly connected to the connecting rod 18. The locking element 7 can be easily tightened or loosened using tools to lock or loosen the connecting rod 18.

[0037] Sealing gaskets 10 are connected to the opposite surfaces of the upper interface 3 and the lower interface 4, as well as the opposite surfaces of the upper tank body 1 and the lower tank body 2. When the tank body is assembled, the sealing gaskets 10 connect and seal the upper tank body 1 and the lower tank body 2, achieving a double sealing effect and preventing leakage of the medium.

[0038] A sliding groove is provided on the outer side of the lower tank body 2. A sliding block 24 is connected to the rotating ring 9. The sliding block 24 is slidably connected to the sliding groove, which has a T-shaped cross-section. This prevents the rotating ring 9 from detaching from the lower tank body 2 and improves the rotational stability of the rotating ring 9, thereby stabilizing the rotation of the three positioning blocks 11 and enabling them to accurately align with the corresponding positioning slots 12.

[0039] Working principle: Oil and gas enter the tank body through the inlet pipe 5. The oil and gas rotate along the spiral guide plate 19. Liquid droplets are thrown against the tank wall under centrifugal force, flow into the liquid accumulation area along the guide groove 20, and finally exit from the bottom of the lower tank body 2, while gas is discharged from the outlet pipe 6. After long-term use, the tank body needs to be cleaned and maintained. Rotating the handle 15 drives the worm gear 16 to rotate, and the worm gear 16 drives the rotating ring 9 to rotate, so that the three positioning blocks 11 are separated from the corresponding limit posts 13, thereby loosening the limit posts 13 and facilitating the separation of the upper tank body 1 and the lower tank body 2. Then, the locking part 7 is operated to loosen the spiral guide plate 19, and the spiral guide plate 19 is disassembled to thoroughly clean the inner wall of the tank and the spiral guide plate 19 for subsequent use. After cleaning, first install and fix the spiral guide plate 19, pass the three limiting posts 13 through the lower interface 4 to initially limit the upper tank 1, and then operate the drive mechanism to rotate the rotating ring 9. The three positioning blocks 11 press against the corresponding limiting posts 13 to lock and fix the limiting posts 13, improve the stability of the connection between the upper tank 1 and the lower tank 2, and achieve the purpose of rapid assembly.

[0040] 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. A split-type buffer tank for oil and gas recovery, comprising an upper tank (1) and a lower tank (2) connected below the upper tank (1), wherein the upper tank (1) is connected to an air inlet pipe (5) and the lower tank (2) is connected to an air outlet pipe (6), characterized in that, The upper tank (1) has an upper interface (3) at its bottom end. The upper interface (3) is connected to the lower interface (4) at the top of the lower tank (2). The upper interface (3) is provided with multiple limiting posts (13). The limiting posts (13) pass through the lower interface (4). The lower tank (2) is rotatably connected to a rotating ring (9). The rotating ring (9) is connected to multiple positioning blocks (11). The positioning blocks (11) are pressed against the limiting posts (13). The positioning blocks (11) are connected to a driving mechanism for driving the multiple positioning blocks (11) to rotate synchronously. The upper tank (1) and the lower tank (2) are provided with a flow guiding and separation mechanism.

2. The split-type buffer tank for oil and gas recovery according to claim 1, characterized in that, The side of the limiting post (13) is provided with a positioning groove (12), and the positioning block (11) is connected to the positioning groove (12).

3. A split-type buffer tank for oil and gas recovery according to claim 1, characterized in that, The drive mechanism includes a housing (8), a positioning bolt (14), a handle (15), a worm (16), and a tooth (17). The housing (8) is connected to the outside of the lower tank (2). The worm (16) is rotatably connected inside the housing (8) and is connected to the tooth (17). The tooth (17) is located on the rotating ring (9). The handle (15) is connected to the end of the worm (16). The positioning bolt (14) is used to position the handle (15).

4. A split-type buffer tank for oil and gas recovery according to claim 3, characterized in that, The housing (8) is sealed and slidably connected to the rotating ring (9).

5. A split-type buffer tank for oil and gas recovery according to claim 3, characterized in that, The positioning bolt (14) is threadedly connected to the handle (15), and the end of the housing (8) is provided with a connecting groove, and the end of the positioning bolt (14) is connected to the connecting groove.

6. A split-type buffer tank for oil and gas recovery according to claim 1, characterized in that, The flow separation mechanism includes a connecting rod (18), a spiral guide plate (19), multiple flow channels (20), multiple protrusions (22), and a locking element (7). The spiral guide plate (19) is located inside the upper tank (1) and the lower tank (2). The flow channels (20) are set on the surface of the spiral guide plate (19). The connecting rod (18) is connected to the spiral guide plate (19). The protrusions (22) are used to limit the spiral guide plate (19). The locking element (7) is locked to the connecting rod (18).

7. A split-type buffer tank for oil and gas recovery according to claim 6, characterized in that, The upper tank (1) is connected to a positioning seat (21) at its inner top. The positioning seat (21) is provided with multiple grooves (23). The protrusion (22) is connected to the grooves (23) and is fixedly connected to the connecting rod (18).

8. A split-type buffer tank for oil and gas recovery according to claim 6, characterized in that, The locking element (7) is threadedly connected to the connecting rod (18).

9. A split-type buffer tank for oil and gas recovery according to claim 1, characterized in that, The upper interface (3) and the lower interface (4) are connected to the opposite surfaces of the upper tank (1) and the lower tank (2) by a sealing gasket (10).

10. A split-type buffer tank for oil and gas recovery according to claim 1, characterized in that, The lower tank (2) is provided with a sliding groove on its outer side, and the rotating ring (9) is connected to a sliding block (24). The sliding block (24) is slidably connected to the sliding groove, and the cross-section of the sliding groove is a T-shaped structure.

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