An oil-gas separator

Abstract

This utility model provides an oil-gas separator, including a tank body and a drain pipe; the upper side of the tank body has an oil-gas inlet and an exhaust outlet, and the lower side of the tank body has an oil inlet and an oil outlet; the drain pipe is disposed inside the tank body, with its inlet end connected to the oil-gas inlet and its outlet end facing the inner wall of the tank body, forming a gap with the inner wall of the tank body; the exhaust outlet is disposed in the opposite direction to the outlet end of the drain pipe; this utility model has a simple structure and is convenient for oil-gas separation.

Description

Technical Field

[0001] This utility model relates to the field of oil-gas separation technology, and more specifically, to an oil-gas separator tank. Background Technology

[0002] In the operation of screw air compressors, lubricating oil plays multiple roles, including lubrication, sealing, cooling, and noise reduction. However, during compression, some lubricating oil is inevitably carried out by the compressed air. If this oil mist is discharged with the compressed air without treatment, it will gradually accumulate and form sludge, potentially causing blockages or damage to pipelines, valves, coolers, etc., leading to a decline in compressed air quality and excessive oil content. Simultaneously, it increases the burden on downstream purification equipment such as dryers and filters, increasing their energy consumption and operating costs, and even affecting purification efficiency. This severely impacts the normal operation of downstream pneumatic components, valves, and cylinders, and may even affect the quality of the final product, especially in industries with extremely high air quality requirements such as food, pharmaceuticals, and electronics. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an oil-gas separator with a simple structure that facilitates oil-gas separation.

[0004] This utility model provides an oil-gas separator, including a tank body and a drain pipe; the upper side of the tank body is provided with an oil-gas inlet and an exhaust outlet, and the lower side of the tank body is provided with an oil inlet and an oil outlet; the drain pipe is disposed inside the tank body, with the inlet end of the drain pipe connected to the oil-gas inlet and the outlet end facing the inner wall of the tank body, forming a gap with the inner wall of the tank body; the exhaust outlet is disposed in the opposite direction to the outlet end of the drain pipe.

[0005] Compared with existing technologies, this application has the following advantages: Oil mist is introduced from the oil-gas inlet under high pressure and ejected through the drainage pipe, impacting the inner wall of the tank. Because the density and inertia of oil droplets are greater than those of gas, they tend to maintain their original direction of motion. Thus, after the collision, the oil droplets are captured and adhere to the wall surface, eventually coalescing and growing larger, flowing into the bottom of the tank under gravity. The gas, on the other hand, easily changes direction and flows in the opposite direction, exiting from the exhaust port. A certain amount of oil is added to the bottom of the tank through the oil inlet, forming an oil layer at the bottom. When oil falls into this oil layer, it effectively prevents these oil droplets from being entrained again by the high-speed airflow, thus avoiding secondary entrainment and promoting the coalescence of small oil droplets into larger ones, accelerating separation and sedimentation. When the oil accumulates to a certain amount, it is discharged from the oil outlet. This application has a simple structure, facilitating oil-gas separation.

[0006] In one possible implementation, the tank is positioned horizontally, which facilitates stable placement.

[0007] Compared with existing technologies, the above-mentioned technical solution can facilitate the storage of more oil.

[0008] In one possible implementation, it also includes a pair of first mounting plates, which are respectively fixed on the left and right sides of the lower surface of the tank, and each of the two first mounting plates is provided with a first mounting hole.

[0009] Compared with existing technologies, the above technical solution facilitates the installation of the tank on an external support platform.

[0010] In one possible implementation, a second mounting plate is also included, which is fixed to the left or right side of the upper surface of the tank, and a second mounting hole is provided on the second mounting plate.

[0011] Compared with existing technologies, the above technical solution facilitates the installation of the tank on an external support frame.

[0012] In one possible implementation, the second mounting plate is also provided with hanging holes.

[0013] Compared with existing technologies, the above technical solution facilitates the suspension and fixation of the tank on the external support frame.

[0014] In one possible implementation, a horizontally arranged upper limit oil level indicator plate is fixed on the side wall of the tank body near the outlet end of the drain pipe, and the upper limit oil level indicator plate is located below the outlet end of the drain pipe; the tank body is also provided with a transparent observation window for observing the oil level around the upper limit oil level indicator plate.

[0015] Compared with existing technologies, the above technical solution allows oil droplets to adhere to the inner side wall of the tank and then flow to the upper limit oil level indicator plate. When too much oil accumulates on the upper surface of the upper limit oil level indicator plate, the oil will flow to the bottom of the tank and be discharged from the drain port. The upper limit oil level indicator plate also helps to guide the airflow in the opposite direction and then discharge it from the exhaust port. The transparent observation window allows the staff to observe whether the oil level has reached the discharge requirement.

[0016] In one possible implementation, a safety valve port is also provided on the tank.

[0017] Compared with existing technologies, the above technical solution facilitates the connection of safety valves, making the overall use safer.

[0018] In one possible implementation, the drainage tube has an L-shaped structure.

[0019] Compared with existing technologies, the above-mentioned technical solution can make a turn when the oil mist enters the drainage pipe at a certain flow rate, avoiding direct impact that would cause splashing and disturbance. On the other hand, the L-shaped structure of the drainage pipe forces the oil mist to make a sharp turn. Utilizing the inertia and gravity of the oil droplets, the oil droplets with higher density will be thrown against the inner wall of the drainage pipe due to inertia and the greater force they experience. This allows the oil mist to begin initial separation when it enters the drainage pipe, which is conducive to the separation of gas. Under the subsequent continuous impact of high-pressure oil mist, the oil droplets on the inner wall of the drainage pipe will also flow out continuously.

[0020] In one possible implementation, the short shaft end of the drain pipe is connected to the oil and gas inlet, and the long shaft end faces the inner wall of the tank, forming a gap with the inner wall of the tank.

[0021] Compared with existing technologies, the above-mentioned technical solution can more effectively achieve preliminary separation of oil mist when it enters the drainage pipe. Furthermore, because the flow of oil mist in the bend generates eddies and resistance, the flow velocity and turbulence of the oil mist may be reduced when it enters from the short axis end of the drainage pipe and exits from the long axis end. This helps to reduce the secondary entrainment of oil droplets by the airflow and makes the subsequent separation process more stable. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present application;

[0023] Figure 2 This is a frontal sectional view of this application;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Tank body, 2-Drain pipe, 3-First mounting plate, 4-Second mounting plate, 11-Oil and gas inlet, 12-Exhaust port, 13-Oil inlet, 14-Oil outlet, 15-Oil level upper limit indicator plate, 16-Transparent observation window, 17-Safety valve port, 31-First mounting hole, 41-Second mounting hole, 42-Hanging hole. Detailed Implementation

[0026] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0027] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0028] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] This embodiment discloses an oil-gas separator, including a tank body 1 and a drain pipe 2; the upper side of the tank body 1 is provided with an oil-gas inlet 11 and an exhaust outlet 12, and the lower side of the tank body 1 is provided with an oil inlet 13 and an oil outlet 14; the drain pipe 2 is disposed inside the tank body 1, and the inlet end of the drain pipe 2 is connected to the oil-gas inlet 11, and the outlet end faces the inner wall of the tank body 1, forming a gap with the inner wall of the tank body 1; the exhaust outlet 12 is disposed in the opposite direction away from the outlet end of the drain pipe 2.

[0031] In this embodiment, the oil and gas inlet 11 is located at the upper end of the tank body 1, the outlet end of the drain pipe 2 faces the left inner wall of the tank body 1, and the exhaust port 12 is located on the right side of the upper end of the tank body 1. The oil mist is input from the oil and gas inlet 11 under high pressure and sprayed out through the drain pipe 2, impacting the left inner wall of the tank body 1. Since the density and inertia of oil droplets are greater than those of gas, they tend to maintain their original direction of motion. Thus, after the collision, the oil droplets are captured and adhere to the wall surface of the left inner wall of the tank body 1, eventually coalescing and growing larger, and flowing into the bottom of the tank under the action of gravity. The gas, on the other hand, easily changes direction and flows in the opposite direction to be discharged from the exhaust port 12. At the beginning, a certain amount of oil can be added to the bottom of the tank 1 through the oil inlet 13 to form an oil layer at the bottom of the tank. When the oil falls into the oil layer, it can effectively prevent these oil droplets from being carried away by the high-speed airflow again, that is, avoid secondary entrainment, and promote the aggregation of small oil droplets into larger oil droplets, accelerating separation and sedimentation. When the oil accumulates to a certain amount, it is discharged from the oil outlet 14. The structure of this application is simple and convenient for oil-gas separation.

[0032] In some embodiments, the tank 1 is arranged horizontally. The tank 1 has a cylindrical structure, and the horizontal arrangement can increase the capacity at the bottom of the tank 1 and facilitate stable placement.

[0033] In some embodiments, a pair of first mounting plates 3 are also included. The two first mounting plates 3 are respectively fixed on the left and right sides of the lower surface of the tank body 1, and each of the two first mounting plates 3 is provided with a first mounting hole 31.

[0034] Specifically, in this embodiment, the cross-sections of the two first mounting plates 3 are both L-shaped, the vertical parts of the two first mounting plates 3 are fixed to the left and right sides of the lower surface of the tank body 1 respectively, and the horizontal parts of the two first mounting plates 3 are provided with first mounting holes 31, which can be screw holes.

[0035] In some embodiments, a second mounting plate 4 is also included. The second mounting plate 4 is fixed to the left or right side of the upper surface of the tank body 1, and a second mounting hole 41 is provided on the second mounting plate 4.

[0036] Specifically, in this embodiment, the vertical part of the second mounting plate 4 is fixed to the left side of the upper surface of the tank 1, and the horizontal part of the second mounting plate 4 is provided with a second mounting hole 41, which can be a screw hole.

[0037] In some embodiments, the second mounting plate 4 is further provided with hanging holes 42, which facilitates the suspension and fixation of the tank 1 on the external support frame.

[0038] In some embodiments, a horizontally arranged upper limit oil level indicator plate 15 is fixed on the side wall of the tank body 1 near the outlet end of the drain pipe 2, and the upper limit oil level indicator plate 15 is located below the outlet end of the drain pipe 2; a transparent observation window 16 is also provided on the tank body 1 for observing the oil level condition around the upper limit oil level indicator plate 15.

[0039] Specifically, in this embodiment, the left end of the oil level upper limit indicator plate 15 is fixed to the left inner side wall of the tank 1, and the right end is suspended, so that after the oil droplets adhere to the left inner side wall of the tank 1, they flow to the oil level upper limit indicator plate 15. When too much oil accumulates on the upper surface of the oil level upper limit indicator plate 15, the oil will flow to the bottom of the tank 1 to be discharged from the oil drain port 14. The tank 1 can also be rolled to accelerate the flow of oil on the oil level upper limit indicator plate 15. The oil level upper limit indicator plate 15 is also conducive to guiding the airflow in the opposite direction, and then discharged from the exhaust port 12. The transparent observation window 16 is aligned with the oil level upper limit indicator plate 15, which is conducive to the staff observing whether the oil level has reached the oil discharge requirement. When the oil level reaches the oil level upper limit indicator plate 15, the oil is discharged through the oil drain port 14.

[0040] In some embodiments, a safety valve port 17 is also provided on the tank body 1.

[0041] Specifically, in this embodiment, the safety valve port 17 can be connected to a safety valve independently. When the pressure inside the tank 1 rises above the specified value, it will be depressurized, making it safer to use.

[0042] In some embodiments, the drain pipe 2 has an L-shaped structure. The short shaft end of the drain pipe 2 is connected to the oil and gas inlet 11, and the long shaft end faces the inner wall of the tank 1, forming a gap with the inner wall of the tank 1.

[0043] Specifically, in this embodiment, the long axis end of the guide pipe 2 faces the left inner wall of the tank 1. When the oil mist enters the guide pipe 2 at a certain flow rate, it makes a turn to avoid direct impact that could cause splashing and disturbance. On the other hand, the L-shaped structure of the guide pipe 2 forces the oil mist to make a sharp turn. Utilizing the inertia and gravity of the oil droplets, the denser oil droplets will be thrown against the inner wall of the guide pipe 2 due to inertia and the greater force they experience. This allows the oil mist to begin initial separation upon entering the guide pipe 2, which is beneficial for the separation of gas. Under the continuous impact of high-pressure oil mist, the oil droplets on the inner wall of the guide pipe 2 will also flow out continuously. Furthermore, because the flow of oil mist in the bend will generate eddies and resistance, when the oil mist enters from the short axis end of the guide pipe 2 and exits from the long axis end, the flow rate and turbulence of the oil mist may be reduced. This helps to reduce the secondary entrainment of oil droplets by the airflow, making the subsequent separation process more stable.

[0044] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0045] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An oil and gas separation vessel, characterized in that, The system includes a tank (1) and a drain pipe (2); the upper side of the tank (1) is provided with an oil and gas inlet (11) and an exhaust port (12), and the lower side of the tank (1) is provided with an oil inlet (13) and an oil outlet (14); the drain pipe (2) is located inside the tank (1), and the inlet end of the drain pipe (2) is connected to the oil and gas inlet (11), and the outlet end faces the inner wall of the tank (1) and forms a gap with the inner wall of the tank (1); the exhaust port (12) is located in the opposite direction away from the outlet end of the drain pipe (2).

2. A knockout pot according to claim 1, wherein The tank (1) is arranged horizontally.

3. A knockout pot according to claim 1 or 2, c h a r a c t e r i s e d in that It also includes a pair of first mounting plates (3), the two first mounting plates (3) are respectively fixed on the left and right sides of the lower surface of the tank (1), and the two first mounting plates (3) are provided with first mounting holes (31).

4. A knockout pot according to claim 3, wherein It also includes a second mounting plate (4), which is fixed on the left or right side of the upper surface of the tank (1), and a second mounting hole (41) is provided on the second mounting plate (4).

5. A knockout pot according to claim 4, wherein The second mounting plate (4) is also provided with hanging holes (42).

6. A knockout pot according to claim 1, 2, 4 or 5, wherein, An oil level upper limit indicator plate (15) is fixed horizontally on the side wall of the tank (1) near the outlet end of the drain pipe (2). The oil level upper limit indicator plate (15) is located below the outlet end of the drain pipe (2). A transparent observation window (16) is also provided on the tank (1) for observing the oil level around the oil level upper limit indicator plate (15).

7. A knockout pot according to claim 1, 2, 4 or 5, wherein, The tank (1) is also provided with a safety valve port (17).

8. A knockout pot according to claim 1, 2, 4 or 5, wherein, The drainage tube (2) has an L-shaped structure.

9. A knockout pot according to claim 8, wherein The short shaft end of the drain pipe (2) is connected to the oil and gas inlet (11), and the long shaft end faces the inner wall of the tank (1) and forms a gap with the inner wall of the tank (1).

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