Oil-gas separation safety recovery device for fuel tank

Abstract

The utility model discloses a fuel oil tank oil-gas separation safety recovery device which comprises a bottom tank, the outer wall of the bottom tank is fixedly connected with a butt joint ring, the butt joint ring is rotationally sleeved with a butt joint sleeve, the inner wall of the butt joint sleeve is fixedly connected with a top tank, the interior of the bottom tank is fixedly connected with a partition plate, the top of the partition plate is provided with an annular groove, and the top of the top tank is fixedly connected with the bottom tank. The inner wall of the annular groove is rotationally connected with a T-shaped ring, and the top of the T-shaped ring is fixedly connected with a mounting plate. According to the oil-gas separation device, the standby filter element is quickly switched by rotating the top tank, replacement can be completed without shutdown, continuous operation of oil-gas separation is ensured, no VOCS is directly discharged in the switching process, and the requirements of environmental protection laws and regulations are met; high-pressure oil gas is dispersed through vortex of the vortex blades, the separation efficiency of the follow-up oil gas filter element is improved, the rubber sealing sleeve ensures no leakage during switching, the burning explosion risk is reduced, the end cover can be quickly opened, replacement of the old oil gas filter element is facilitated, and the manual intervention time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of oil-gas separation technology, and in particular to a safe recovery device for oil-gas separation in fuel tanks. Background Technology

[0002] Gasoline is highly volatile. During refueling, gasoline vapors are expelled from the tank, and the agitation of the gasoline also generates a large amount of vapors. Furthermore, the natural evaporation of gasoline from underground storage tanks also produces significant amounts of vapors. If these vapors are not properly recovered and treated, they will permeate the gas station environment and may even be released into the atmosphere. Long-term exposure to such vapors poses a threat to human health, pollutes the environment, and creates safety hazards. Fuel vapor separators are used in the fuel vapor separation process to separate gasoline vapors from those in the fuel line. However, in practice, the filter element inside the fuel vapor separator needs to be replaced periodically. Replacement requires disconnecting the pipeline, stopping the fuel vapor separation process. During this time, untreated gasoline vapors are directly released, causing instantaneous pollution exceeding standards. Therefore, we propose a fuel tank vapor separation and safe recovery device to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a safe and efficient fuel tank oil-gas separation and recovery device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fuel tank oil-gas separation and safe recovery device includes a bottom tank, a docking ring fixedly connected to the outer wall of the bottom tank, a docking sleeve rotatably fitted onto the docking ring, a top tank fixedly connected to the inner wall of the docking sleeve, a partition fixedly connected inside the bottom tank, an annular groove formed at the top of the partition, a T-shaped ring rotatably connected to the inner wall of the annular groove, a mounting plate fixedly connected to the top of the T-shaped ring, the outer wall of the mounting plate fixedly connected to the inner wall of the top tank, a docking hole formed on the outer wall of the partition, two rubber sealing sleeves fixedly interconnected at the top of the mounting plate, oil-gas filter elements fitted onto the inner walls of both rubber sealing sleeves, two threaded grooves formed at the top of the top tank, end caps threadedly connected to the inner walls of both threaded grooves, a baffle fixedly connected inside the top tank, and a dispersion mechanism inside the bottom tank.

[0006] Preferably, the dispersing mechanism includes a shaft, the bottom of the partition is rotatably connected to the top of the shaft, and a vortex is fixedly sleeved on the outer wall of the shaft. The dispersing mechanism disperses the incoming oil and gas, forming turbulence so that it enters one of the oil and gas filter elements from the docking groove.

[0007] Preferably, the bottom of the top tank is in contact with the top of the bottom tank, and the top tank can be rotated to facilitate the rotation and repositioning of the two oil and gas filter elements.

[0008] Preferably, the outer wall of the top tank has two vent pipes that are fixedly interconnected, and the outer walls of the two vent pipes are each fixedly fitted with an existing one-way valve.

[0009] Preferably, the bottom of the end cap is pressed against the top of the oil-gas filter element, and the oil-gas filter element is fixed to the rubber sealing sleeve by setting the end cap.

[0010] Preferably, a bearing is fixedly sleeved on the outer wall of the shaft, and the outer ring of the bearing is fixedly connected to the bottom of the mounting plate. The bearing assists the shaft and the vortex blade in rotating.

[0011] Preferably, the outer wall of the bottom tank is fixedly connected to an air inlet pipe and an oil outlet pipe.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution allows for rapid switching to a backup filter element via rotating the top tank, enabling replacement without machine shutdown and ensuring continuous oil-gas separation operation. No VOCs are directly emitted during the switching process, complying with environmental regulations. High-pressure oil and gas are dispersed by vortex blades, improving the separation efficiency of subsequent oil-gas filter elements. Rubber sealing sleeves prevent leakage during switching, reducing the risk of combustion and explosion. The end caps can be opened quickly, facilitating the replacement of old oil-gas filter elements and reducing manual intervention time. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of a fuel tank oil-gas separation and safe recovery device proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of a fuel tank oil-gas separation and safe recovery device proposed in this utility model;

[0017] Figure 3 This utility model proposes a safe recovery device for separating and separating oil and gas in a fuel tank. Figure 2 A magnified structural diagram of part A in the diagram;

[0018] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of a fuel tank oil-gas separation and safe recovery device proposed in this utility model.

[0019] In the diagram: 1. Bottom tank; 2. Docking ring; 3. Docking sleeve; 4. Top tank; 5. Baffle plate; 6. T-ring; 7. Mounting plate; 8. Docking hole; 9. Rubber sealing sleeve; 10. Oil and gas filter element; 11. Exhaust pipe; 12. End cap; 13. Baffle plate; 14. Shaft; 15. Vortex blade; 16. Inlet pipe; 17. Oil drain pipe. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-4 As shown, a fuel tank oil-gas separation and safe recovery device is disclosed, including a bottom tank 1. A docking ring 2 is fixedly connected to the outer wall of the bottom tank 1. A docking sleeve 3 is rotatably fitted onto the docking ring 2. A rubber sealing ring is installed between the docking ring 2 and the docking sleeve 3 to increase sealing and friction, so that the top tank 4 cannot rotate when not subjected to external force. At the same time, the rotation angle of the top tank 4 can be rotated by an arrow pre-marked on the top tank 4. The inner wall of the docking sleeve 3 is fixedly connected to the top tank 4, and the bottom of the top tank 4 is in contact with the top of the bottom tank 1.

[0022] The bottom tank 1 is fixedly connected to a partition plate 5. The top of the partition plate 5 is provided with an annular groove. The inner wall of the annular groove is rotatably connected to a T-shaped ring 6. The top of the T-shaped ring 6 is fixedly connected to a mounting plate 7. The outer wall of the mounting plate 7 is fixedly connected to the inner wall of the top tank 4. A sealing gasket can be added between the mounting plate 7 and the partition plate 5 to increase the sealing between them. The outer wall of the partition plate 5 is provided with a mating hole 8.

[0023] The top of the mounting plate 7 has two fixedly connected rubber sealing sleeves 9, and the inner walls of the two rubber sealing sleeves 9 are fitted with oil and gas filter elements 10. The rubber sealing sleeves 9 seal the bottom edge of the oil and gas filter elements 10. The outer wall of the top tank 4 has two fixedly connected exhaust pipes 11. The top of the top tank 4 has two threaded grooves, and the inner walls of the two threaded grooves are threaded with end caps 12. The bottom of the end caps 12 is pressed against the top of the oil and gas filter elements 10, and the end caps 12 fix the oil and gas filter elements 10. At the same time, the end caps 12 block the threaded grooves. The inside of the top tank 4 is fixedly connected with a baffle 13, which divides the top tank 4 into two areas.

[0024] The bottom tank 1 is equipped with a dispersion mechanism, which includes a shaft 14. A bearing is fixedly sleeved on the outer wall of the shaft 14. The outer ring of the bearing is fixedly connected to the bottom of the mounting plate 7. The bottom of the partition plate 5 is rotatably connected to the top of the shaft 14. A vortex 15 is fixedly sleeved on the outer wall of the shaft 14. An air inlet pipe 16 and an oil outlet pipe 17 are fixedly connected to the outer wall of the bottom tank 1. One end of the air inlet pipe 16 is connected to the fuel tank, and the oil and gas in the fuel tank are extracted and transported to the bottom tank 1 through the existing pump body. The oil outlet pipe is fixedly connected to the fuel tank, and the collected oil re-enters the fuel tank through the oil outlet pipe. The internal pressure of the fuel tank is balanced and maintained by the existing valve body (breathing valve).

[0025] Working principle: The fuel gas pipeline on the fuel tank is connected to the intake pipe 16. Fuel gas can enter the bottom tank 1 through the intake pipe 16. The high-pressure fuel gas is blown towards the vortex blade 15 to create a swirling flow, dispersing it. It then enters the top rubber sealing sleeve 9 and the fuel gas filter element 10 through the docking hole 8. Fuel gas separation occurs through the fuel gas filter element 10 (small oil droplets are diffused, intercepted, and collided by the filter material, condensing into larger oil droplets, which continue to settle downwards). The filtered fuel gas is discharged from the corresponding exhaust pipe 11. When replacing the oil-gas filter element 10 in use, rotate the top tank 4 to switch the two oil-gas filter elements 10 inside. The rotation of the top tank 4 drives the mounting plate 7 to rotate, and the two rubber sealing sleeves 9 rotate, so that the other rubber sealing sleeve 9 rotates with the oil-gas filter element 10, so that the other oil-gas filter element 10 is located on the docking hole 8, forming a replacement of the old and new without hindering the separation of oil and gas. Rotate the end cap 12 on the top of the oil-gas filter element 10 to be replaced, and take out the old oil-gas filter element 10.

[0026] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0027] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fuel tank oil-gas separation and safe recovery device, comprising a bottom tank (1), characterized in that, A docking ring (2) is fixedly connected to the outer wall of the bottom tank (1). A docking sleeve (3) is rotatably fitted onto the docking ring (2). A top tank (4) is fixedly connected to the inner wall of the docking sleeve (3). A partition plate (5) is fixedly connected to the inside of the bottom tank (1). An annular groove is provided on the top of the partition plate (5). A T-shaped ring (6) is rotatably connected to the inner wall of the annular groove. A mounting plate (7) is fixedly connected to the top of the T-shaped ring (6). The outer wall of the mounting plate (7) is connected to the top tank (4). 4) The inner wall is fixedly connected, the outer wall of the partition (5) is provided with a docking hole (8), the top of the mounting plate (7) is fixedly connected with two rubber sealing sleeves (9), the inner wall of the two rubber sealing sleeves (9) is fitted with an oil and gas filter element (10), the top of the top tank (4) is provided with two threaded grooves, the inner wall of the two threaded grooves is threaded with an end cap (12), the inside of the top tank (4) is fixedly connected with a baffle (13), and the inside of the bottom tank (1) is provided with a dispersion mechanism.

2. The fuel tank oil-gas separation and safe recovery device according to claim 1, characterized in that, The dispersing mechanism includes a shaft (14), the bottom of the partition (5) is rotatably connected to the top of the shaft (14), and a vortex (15) is fixedly sleeved on the outer wall of the shaft (14).

3. The fuel tank oil-gas separation and safe recovery device according to claim 1, characterized in that, The bottom of the top tank (4) is in contact with the top of the bottom tank (1).

4. The fuel tank oil-gas separation and safe recovery device according to claim 1, characterized in that, The outer wall of the top tank (4) has two fixedly connected exhaust pipes (11).

5. The fuel tank oil-gas separation and safe recovery device according to claim 1, characterized in that, The bottom of the end cap (12) is pressed against the top of the oil and gas filter element (10).

6. The fuel tank oil-gas separation and safe recovery device according to claim 2, characterized in that, The outer wall of the shaft (14) is fixedly fitted with a bearing, and the outer ring of the bearing is fixedly connected to the bottom of the partition (5).

7. The fuel tank oil-gas separation and safe recovery device according to claim 1, characterized in that, The bottom tank (1) has an air inlet pipe (16) and an oil outlet pipe (17) fixedly connected to its outer wall.

Images