A kind of oil collecting device of gas-liquid separator

Abstract

The application discloses an oil collecting device of a gas-liquid separator and relates to the technical field of gas-liquid separators, which comprises an oil collector shell and a visual window arranged on the outer surface of the oil collector shell. The bottom end surface of the oil collector shell is provided with an assembling groove, the inner wall top end surface of the assembling groove is provided with a bearing, the inner wall of the assembling groove is provided with an adjusting screw rod, and the outer side surface of the bearing is provided with an adjusting ring. The adjusting screw rod drives the extrusion block to perform volume compensation to stabilize the oil suction level. The sealing sleeve and the sliding plate are combined to realize high-pressure leakage prevention and rotation stopping. The separation plate is used to precipitate impurities, and a pure mechanical lubricating oil closed-loop recovery system is constructed. Thus, the defects that the existing venturi nozzle negative pressure oil return height depends on gravity liquid seal pool, high-pressure gas is easily sucked when the liquid level drops, gas channeling is caused, compression energy efficiency is reduced, and the host machine faces the risk of oil shortage, dry friction and seizure damage are solved.

Description

Technical Field

[0001] This invention relates to the field of gas-liquid separator technology, and more particularly to an oil collection device for a gas-liquid separator. Background Technology

[0002] Gas-liquid separators are core separation equipment widely used in industrial production, mechanical engineering, and fluid control systems. Their main function is to effectively separate liquid droplets and mists mixed in a gas stream using physical or mechanical means, thereby outputting pure, dry gas downstream. They also collect, recover, or discharge the separated liquid substances. This equipment plays a crucial role in protecting downstream precision machinery, improving system energy efficiency, and maintaining process purity.

[0003] Existing gas-liquid separators rely on gravity for oil collection and utilize the negative pressure of Venturi nozzles for oil return. This mechanism is highly dependent on a stable liquid seal pool at the bottom. When the liquid level naturally drops below the suction elevation due to long-term system operation, the nozzles will directly draw in high-pressure gas, causing gas leakage. This not only reduces compression efficiency but also leads to the risk of dry friction or even seizure and damage to the main unit due to a sudden decrease in oil return. Existing oil collection areas lack impurity isolation mechanisms, and precipitated impurities are easily sucked in and clog the precision nozzles. Furthermore, if an external mechanical device is introduced to forcibly regulate the internal liquid level, the moving transmission components will struggle to overcome the sealing challenges under high-pressure conditions. High-pressure gas is highly likely to leak outwards along the transmission thread gaps, causing safety accidents. To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0004] The purpose of this invention is to stabilize the oil level by adjusting the screw to drive the extrusion block for volume compensation, achieving high-pressure zero-leakage anti-rotation by combining a sealing sleeve and a sliding plate, and using a separation plate to settle impurities. This ultimately constructs a closed-loop, purely mechanical lubricating oil recovery system that prevents gas leakage, blockage, and gas flow. This overcomes the limitations of existing gas-liquid separators that rely on gravity oil collection and negative pressure return via a Venturi nozzle, a mechanism highly dependent on a stable bottom liquid seal pool. When the system operates for a long time and the liquid level naturally drops below the suction elevation, the nozzle directly draws in high-pressure gas, causing gas leakage. This not only reduces compression efficiency but also risks dry friction or even seizure and damage to the main unit due to a sudden decrease in oil return.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an oil collection device for a gas-liquid separator, comprising an oil collector housing and a viewing window disposed on the outer surface of the oil collector housing; an adjustment assembly and a circulation assembly are disposed inside the oil collector housing; an assembly groove is disposed on the bottom surface of the oil collector housing, a bearing is mounted on the top surface of the inner wall of the assembly groove, an adjustment screw is mounted on the inner wall of the assembly groove, an adjustment ring is mounted on the outer side of the bearing, and a telescopic sealing sleeve is mounted on the outer side of the adjustment screw; the adjustment assembly includes a pressing block mounted on the top surface of the adjustment screw and a sliding plate mounted on the inner wall of the oil collector housing, a sliding groove that mates with the sliding plate is opened on the outer surface of the pressing block, a collection groove is disposed on the top surface of the pressing block, and a permeation hole is opened on the bottom surface of the pressing block; the circulation assembly includes an oil collector top cover mounted on the top surface of the oil collector housing and a U-shaped tube extending into the interior of the oil collector housing.

[0006] Furthermore, the viewing window is made of glass, one end of the adjusting screw extends from the bottom of the oil collector housing to the inside of the oil collector housing, the inner wall of the bearing is fixedly connected to the top surface of the inner wall of the mounting groove, the outer surface of the bearing is fixedly connected to the outer surface of the adjusting ring, and the inner wall of the adjusting ring is threadedly rotatably connected to the outer surface of the adjusting screw.

[0007] Furthermore, the inner wall of the telescopic sealing sleeve is fixedly connected to the outer surface of the adjusting screw, and the bottom surface of the telescopic sealing sleeve is fixedly connected to the bottom surface of the inner wall of the oil collector housing. The telescopic sealing sleeve is used to provide a seal between the adjusting screw and the oil collector housing.

[0008] Furthermore, there are several permeation holes, which are distributed in a linear array at equal intervals on the bottom surface of the extrusion block. The permeation holes are interconnected with the inner wall of the collection tank. The adjusting screw is used to raise and lower the extrusion block in a linear manner when it is not rotating, and to drive the extrusion block to raise and lower synchronously.

[0009] Furthermore, a separation plate is installed on the inner wall of the oil collector housing, and a collection groove is provided on the bottom surface of the inner wall of the oil collector housing.

[0010] Furthermore, there are four sliding plates, which are equidistantly distributed in a circular array on the inner wall of the oil collector housing. There are four sliding grooves, which are equidistantly distributed in a circular array on the outer surface of the extrusion block. The sliding plates and the sliding grooves correspond one-to-one and are slidably connected. There are four collecting grooves, which are equidistantly distributed in a circular array on the bottom surface of the oil collector housing. The separating plate is made of metal mesh.

[0011] Furthermore, the oil collector top cover is installed on the outer surface of the U-shaped tube, an air inlet pipe is provided on the top surface of the oil collector top cover, and a Venturi injector is provided on the outer surface of the U-shaped tube.

[0012] Furthermore, the venturi injector is in communication with the interior of the U-shaped tube, and the air intake pipe extends from the top surface of the oil collector cover to the interior of the oil collector housing.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The oil collection device of this gas-liquid separator uses an adjusting screw to drive the extrusion block for volume compensation to stabilize the oil level. Combined with a sealing sleeve and sliding plate, it achieves high-pressure zero-leakage anti-rotation and uses the separation plate to settle impurities. Ultimately, it constructs a closed-loop recovery system for pure mechanical lubricating oil that prevents gas leakage, blockage, and gas flow. This overcomes the shortcomings of existing gas-liquid separators that rely on gravity oil collection and negative pressure return via Venturi nozzles. This mechanism is highly dependent on a stable liquid seal pool at the bottom. When the liquid level naturally drops below the suction elevation due to long-term system operation, the nozzle will directly draw in high-pressure gas, causing gas flow. This not only reduces compression efficiency but also leads to the risk of dry friction or even seizure and damage to the main unit due to a sudden reduction in oil return. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall external structure of the present invention is shown; Figure 2 This invention is shown as a schematic diagram of its overall external structure from another angle. Figure 3 A schematic diagram of the overall internal structure of the present invention is shown; Figure 4 This diagram shows another angle of the overall internal structure of the present invention; Figure 5 A schematic diagram of the internal structure of the oil collector housing of the present invention is shown; Figure 6 A schematic diagram of the extrusion block structure of the present invention is shown; Figure 7 The present invention is shown. Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0015] Explanation of reference numerals in the attached drawings: 1. Oil collector housing; 2. Viewing window; 3. Assembly slot; 4. Bearing; 5. Adjusting screw; 6. Adjusting ring; 7. Telescopic sealing sleeve; 8. Extrusion block; 9. Collection slot; 10. Permeation hole; 11. Sliding plate; 12. Sliding groove; 13. Separation plate; 14. Collection groove; 15. U-shaped tube; 16. Oil collector top cover; 17. Air inlet pipe; 18. Venturi injector. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0018] Example 1 like Figures 1-7 As shown, an oil collection device for a gas-liquid separator includes an oil collector housing 1 and a viewing window 2 disposed on the outer surface of the oil collector housing 1. The viewing window 2 is made of glass. An adjustment component and a circulation component are disposed inside the oil collector housing 1. An assembly groove 3 is disposed on the bottom surface of the oil collector housing 1. A bearing 4 is installed on the top surface of the inner wall of the assembly groove 3. An adjustment screw 5 is installed on the inner wall of the assembly groove 3. The inner wall of the bearing 4 is fixedly connected to the top surface of the inner wall of the assembly groove 3. The outer surface of the bearing 4 is fixedly connected to the outer surface of the adjustment ring 6. The inner wall of the adjustment ring 6 is threadedly rotated with the outer surface of the adjustment screw 5. The connection and adjusting screw 5 extends from the bottom of the oil collector housing 1 to the inside of the oil collector housing 1. The circulation assembly includes an oil collector top cover 16 installed on the top surface of the oil collector housing 1 and a U-shaped tube 15 extending into the inside of the oil collector housing 1. The oil collector top cover 16 is installed on the outer surface of the U-shaped tube 15. An air inlet pipe 17 is provided on the top surface of the oil collector top cover 16. The air inlet pipe 17 extends from the top surface of the oil collector top cover 16 to the inside of the oil collector housing 1. A Venturi nozzle 18 is provided on the outer surface of the U-shaped tube 15, and the Venturi nozzle 18 is in communication with the inside of the U-shaped tube 15.

[0019] Example 2 Reference Figures 1-7Specifically, the adjusting assembly includes a pressing block 8 mounted on the top surface of the adjusting screw 5 and a sliding plate 11 mounted on the inner wall of the oil collector housing 1. The outer surface of the pressing block 8 has sliding grooves 12 that cooperate with the sliding plates 11. Four sliding plates 11 are arranged in a circular array and equidistantly distributed on the inner wall of the oil collector housing 1. Correspondingly, four sliding grooves 12 are arranged in a circular array and equidistantly distributed on the outer surface of the pressing block 8. The sliding plates 11 and sliding grooves 12 correspond one-to-one and are slidably connected. A collection groove 9 is provided on the top surface of the pressing block 8, and the bottom of the pressing block 8... The end surface is provided with a number of permeation holes 10 arranged in a linear array at equal intervals. The permeation holes 10 are interconnected with the inner wall of the collection tank 9. The adjusting screw 5 is used to raise and lower linearly in a non-rotating state and drive the extrusion block 8 to raise and lower synchronously. A telescopic sealing sleeve 7 is installed on the outer side of the adjusting screw 5. The inner wall of the telescopic sealing sleeve 7 is fixedly connected to the outer surface of the adjusting screw 5. The bottom surface of the telescopic sealing sleeve 7 is fixedly connected to the bottom surface of the inner wall of the oil collector housing 1. The telescopic sealing sleeve 7 is used to provide a seal between the adjusting screw 5 and the oil collector housing 1.

[0020] Example 3 Reference Figures 1-7 Specifically, a separation plate 13 is installed on the inner wall of the oil collector housing 1. The separation plate 13 is made of metal mesh. A collection groove 14 is provided on the bottom surface of the inner wall of the oil collector housing 1. Four collection grooves 14 are arranged in a ring array and are equidistantly distributed on the bottom surface of the oil collector housing 1 to collect the intercepted mechanical impurities.

[0021] Specific operating procedure: When the air compressor starts and exhausts gas, the high-pressure oil-gas mixture first enters the oil collector housing 1 through the air inlet pipe 17 on the top cover 16 of the oil collector. The airflow undergoes preliminary physical deceleration and separation inside the oil collector housing 1. The atomized oil droplets gradually coalesce and settle under the action of gravity, and pass through the separation plate 13 installed on the inner wall of the oil collector housing 1. During this separation process, solid mechanical impurities entrained in the oil-gas mixture are effectively intercepted by the mesh separation plate 13 and fall into the four collection grooves 14 arranged in a ring array on the bottom surface of the oil collector housing 1 for centralized sedimentation and isolation.

[0022] As the separation process continues, the settled pure liquid oil gradually accumulates at the bottom of the oil collector housing 1 to form a base oil pool. Operators can monitor the internal liquid level in real time through the glass viewing window 2 located on the outer surface of the oil collector housing 1. When the internal base oil level is observed to drop and is about to fall below the suction elevation of the Venturi nozzle 18 on the outer surface of the U-shaped tube 15, the operator can manually intervene in the volume by rotating the adjusting ring 6 installed in the mounting groove 3 at the bottom of the oil collector housing 1.

[0023] During the intervention and adjustment phase, since the outer surface of the adjusting ring 6 is fixedly connected to the bearing 4 at the top of the inner wall of the assembly groove 3, the bearing 4 effectively restricts the axial displacement of the adjusting ring 6, allowing it to rotate only in place. The adjusting screw 5, which is threaded to it, is then subjected to a downward driving force. Because the outer surface of the pressing block 8 at the top of the adjusting screw 5 has four sliding grooves 12, which correspond one-to-one with and are slidably connected to the four sliding plates 11 on the inner wall of the oil collector housing 1, this precise guide and limiting structure completely locks the rotational freedom of the pressing block 8 and the adjusting screw 5, forcing the adjusting screw 5 to only drive the pressing block 8 to move smoothly downward in a straight line inside the oil collector housing 1.

[0024] As the extrusion block 8 continues to move downwards, its wide bottom surface exerts a strong physical compression and volume compensation effect on the lubricating oil in the bottom oil pool. This forces the incompressible liquid oil to overcome gravity and flow upwards along several permeation holes 10 arranged in a linear array on the bottom surface of the extrusion block 8, rapidly surging into the collection tank 9 on the top surface of the extrusion block 8. Accompanied by the forced physical rise of the oil level inside the collection tank 9, the pure liquid oil is precisely lifted and submerges the Venturi nozzle 18 on the U-shaped tube 15.

[0025] When the separated clean gas is ready to be discharged from the U-shaped tube 15, the high-speed airflow generates a significant local negative pressure through the internal Venturi structure, continuously drawing the lubricating oil in the collection tank 9 into the U-shaped tube 15 through the small nozzle and recirculating it back to the air compressor main unit with the airflow. During this full-cycle volume adjustment and suction process, the telescopic sealing sleeve 7, which is fixed to the inner wall of the adjusting screw 5 and whose bottom end is fixedly connected to the inner wall of the outer casing, always undergoes synchronous elastic deformation with the rise and fall of the adjusting screw 5, completely physically isolating the mechanical transmission gap at the bottom from the internal high-pressure gas.

[0026] Through intuitive monitoring via the viewing window 2, primary impurity removal via the separation plate 13, precise limiting and guiding via the sliding plate 11, and physical volume compensation for fluid replenishment via the extrusion block 8, this oil collection device achieves efficient and stable recovery of lubricating oil under different system load conditions. This purely mechanical spiral extrusion compensation mechanism not only ensures continuous anti-gas leakage oil supply to the venturi injector 18, but also effectively eliminates the risk of high-pressure gas leakage through the telescopic sealing sleeve 7. Ultimately, the air discharged through the U-shaped tube 15 achieves extremely high cleanliness, significantly improving the operational stability of subsequent air-using equipment and the purity of oil circulation.

[0027] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An oil collection device for a gas-liquid separator, comprising an oil collector housing (1) and a viewing window (2) disposed on the outer surface of the oil collector housing (1), characterized in that, The oil collector housing (1) is provided with an adjustment component and a circulation component inside; the bottom surface of the oil collector housing (1) is provided with an assembly groove (3), the top surface of the inner wall of the assembly groove (3) is equipped with a bearing (4), the inner wall of the assembly groove (3) is equipped with an adjustment screw (5), the outer side of the bearing (4) is equipped with an adjustment ring (6), and the outer side of the adjustment screw (5) is equipped with a telescopic sealing sleeve (7); the adjustment component includes a pressing block (8) installed on the top surface of the adjustment screw (5) and a sliding plate (11) installed on the inner wall of the oil collector housing (1), the outer surface of the pressing block (8) is provided with a sliding groove (12) that cooperates with the sliding plate (11), the top surface of the pressing block (8) is provided with a collection groove (9), and the bottom surface of the pressing block (8) is provided with a permeation hole (10); the circulation component includes an oil collector top cover (16) installed on the top surface of the oil collector housing (1) and a U-shaped tube (15) extending into the interior of the oil collector housing (1).

2. The oil collection device for a gas-liquid separator according to claim 1, characterized in that: The viewing window (2) is made of glass. One end of the adjusting screw (5) extends from the bottom of the oil collector housing (1) to the inside of the oil collector housing (1). The inner wall of the bearing (4) is fixedly connected to the top surface of the inner wall of the assembly groove (3). The outer surface of the bearing (4) is fixedly connected to the outer surface of the adjusting ring (6). The inner wall of the adjusting ring (6) is threadedly connected to the outer surface of the adjusting screw (5).

3. The oil collection device for a gas-liquid separator according to claim 1, characterized in that: The inner wall of the telescopic sealing sleeve (7) is fixedly connected to the outer surface of the adjusting screw (5), and the bottom surface of the telescopic sealing sleeve (7) is fixedly connected to the bottom surface of the inner wall of the oil collector housing (1). The telescopic sealing sleeve (7) is used to provide a seal between the adjusting screw (5) and the oil collector housing (1).

4. The oil collection device for a gas-liquid separator according to claim 1, characterized in that: There are several permeation holes (10), and the several permeation holes (10) are distributed in a linear array at equal intervals on the bottom surface of the extrusion block (8). The permeation holes (10) are connected to the inner wall of the collection groove (9). The adjusting screw (5) is used to raise and lower the extrusion block (8) in a linear manner in a non-rotational state and drive the extrusion block (8) to raise and lower synchronously.

5. The oil collection device for a gas-liquid separator according to claim 1, characterized in that: The inner wall of the oil collector housing (1) is equipped with a separation plate (13), and the bottom surface of the inner wall of the oil collector housing (1) is provided with a collection groove (14).

6. The oil collection device for a gas-liquid separator according to claim 1, characterized in that: There are four sliding plates (11), which are arranged in a ring array and equidistantly distributed on the inner wall of the oil collector housing (1). There are four sliding grooves (12), which are arranged in a ring array and equidistantly distributed on the outer surface of the extrusion block (8). The sliding plates (11) and the sliding grooves (12) correspond one-to-one and are slidably connected. There are four collecting grooves (14), which are arranged in a ring array and equidistantly distributed on the bottom surface of the oil collector housing (1). The separating plate (13) is made of metal mesh.

7. The oil collection device for a gas-liquid separator according to claim 1, characterized in that: The oil collector top cover (16) is installed on the outer surface of the U-shaped tube (15), the top surface of the oil collector top cover (16) is provided with an air inlet pipe (17), and the outer surface of the U-shaped tube (15) is provided with a Venturi injector (18).

8. The oil collection device for a gas-liquid separator according to claim 7, characterized in that: The Venturi injector (18) is in communication with the interior of the U-tube (15), and the air intake pipe (17) extends from the top surface of the oil collector top cover (16) to the interior of the oil collector housing (1).

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