Oil-gas separator

Abstract

The embodiment of the utility model provides an oil-gas separator. The oil-gas separator comprises a shell provided with a separation cavity, the shell is provided with a gas outlet, an oil outlet and a fluid inlet which are communicated with the separation cavity, the gas outlet is located in the top of the shell, the oil outlet is located in the bottom of the shell, and the fluid inlet is located in the side wall of the shell and is close to the middle or the upper portion of the shell; the flow blocking component is arranged at the bottom of the separation cavity and used for blocking the oil liquid accumulated at the bottom of the separation cavity from rotating; the partition plate is arranged in the separation cavity and is close to the middle part of the separation cavity in the vertical direction; the partition plate is spread in the transverse direction so as to divide the separation cavity into a rotational flow space located above the partition plate and a flow stabilizing space located between the partition plate and the flow blocking component; a first gap is formed between the outer periphery of the partition plate and the inner wall of the separation cavity so as to communicate the rotational flow space with the steady flow space. The oil-gas separator has a good oil-gas separation effect.

Description

Technical Field

[0001] Example embodiments of the present application generally relate to the technical field of oil-gas separation, and in particular to an oil-gas separator. Background Art

[0002] A cyclone oil-gas separator uses the centrifugal force of a rotating airflow to separate oil and gas. Traditional cyclone separators typically consist of a housing with a mixture inlet, an air outlet, and an oil outlet. The oil-gas mixture is introduced into the separation chamber through the mixture inlet, along a tangential or near-tangential direction, where it rotates. Under the combined effects of centrifugal force and gravity, the oil is separated and remains at the bottom of the separation chamber, while the gas is discharged through the air outlet, achieving oil-gas separation. However, in these traditional oil-gas separators, the rotating airflow disturbs the oil accumulated at the bottom and can easily form foam inside the cylinder, affecting the oil-gas separation efficiency and subsequent oil recycling. Utility Model Content

[0003] The purpose of the present application is to provide an oil-gas separator to solve or at least partially solve the above-mentioned problems and / or other potential problems existing in traditional oil-gas separators.

[0004] The present application provides an oil-gas separator. The oil-gas separator comprises: a housing having a separation chamber, the housing being provided with an air outlet, an oil outlet, and a fluid inlet communicating with the separation chamber, the air outlet being located at the top of the housing, the oil outlet being located at the bottom of the housing, and the fluid inlet being located on the sidewall of the housing and near the middle or upper portion of the housing; a flow baffle disposed at the bottom of the separation chamber, the flow baffle being used to prevent oil accumulated at the bottom of the separation chamber from rotating; and a partition plate disposed in the separation chamber and near the vertical middle portion of the separation chamber; the partition plate extending laterally to separate the separation chamber into a vortex space located above the partition plate and a steady flow space located between the partition plate and the flow baffle; a first gap being defined between the outer periphery of the partition plate and the inner wall of the separation chamber to connect the vortex space and the steady flow space.

[0005] In some embodiments, the flow blocking component includes: at least one baffle, arranged at the bottom of the separation chamber, the at least one baffle extending vertically to prevent the rotation of the oil accumulated at the bottom of the separation chamber; and a support portion extending vertically, the bottom end of the support portion being connected to the at least one baffle, and the top end of the support portion being connected to the partition plate to support the partition plate.

[0006] In some embodiments, the support portion includes a first support plate and a second support plate, and a side edge of the first support plate is connected to a side edge of the second support plate to form the support portion with an L-shaped cross section.

[0007] In some embodiments, the at least one baffle includes: a first baffle extending from the other side edge of the first support plate toward the inner wall of the separation chamber; and a second baffle extending from the other side edge of the second support plate toward the inner wall of the separation chamber along a direction different from that of the first baffle.

[0008] In some embodiments, the first baffle plate and the first support plate are located in the same plane, and the second baffle plate and the first baffle plate extend along the inner wall of the separation chamber in opposite directions.

[0009] In some embodiments, a cross section of the flow blocking member at the first baffle and the second baffle is Z-shaped.

[0010] In some embodiments, the at least one baffle includes: a first baffle extending from one side edge of the support portion toward the inner wall of the separation chamber; and a second baffle extending from the other side edge of the support portion toward the inner wall of the separation chamber along a direction different from that of the first baffle.

[0011] In some embodiments, the baffle component is formed by integral bending.

[0012] In some embodiments, the baffle component is connected to the partition plate and / or the bottom of the shell by welding.

[0013] In some embodiments, a guide hole is provided at the bottom end of the flow blocking component, so that the oil can flow from one side of the flow blocking component to the other side of the flow blocking component through the guide hole.

[0014] In some embodiments, a side wall of the shell is provided with a refueling port communicating with the separation chamber, and the refueling port is located below the partition plate.

[0015] In some embodiments, a partition is provided in the middle or upper part of the separation chamber, and a second gap is provided between the outer wall of the partition and the inner wall of the separation chamber, so as to form a guide space with a ring-shaped cross-section through the second gap; the outer periphery of the guide space is connected to the fluid inlet, and the bottom end of the guide space is connected to the vortex space.

[0016] In the oil-gas separator of the embodiment of the present application, the partition plate is arranged in the middle of the separation chamber in the vertical direction, dividing the separation chamber into a vortex space located above the partition plate and a steady flow space located below the partition plate. Under the action of the partition plate and the steady flow space, the airflow at the bottom of the separation chamber can be made smooth, thereby preventing the airflow from causing severe disturbances to the oil accumulated at the bottom of the separation chamber, and improving the oil-gas separation effect. Moreover, the partition plate will also collide with the rising airflow in the steady flow space, causing part of the oil in the rising airflow to adhere to the partition plate, thereby further improving the oil-gas separation effect. In addition, a flow blocking component is provided at the bottom of the separation chamber to prevent the oil accumulated at the bottom of the separation chamber from rotating, thereby stabilizing the oil height at the bottom of the oil-gas separator and avoiding / reducing the generation of foam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages and aspects of the embodiments of the present application will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0018] Figure 1 shows a perspective view of an oil-gas separator according to some embodiments of the present application;

[0019] Figure 2 shows a top view of an oil-gas separator according to some embodiments of the present application;

[0020] Figure 3 Shown along Figure 2 Side view of the oil-gas separator after cutting along the A-0-B line;

[0021] Figure 4 Shown along Figure 2 A three-dimensional diagram of the oil-gas separator cut along the A-0-B line;

[0022] Figure 5 A perspective view showing a partial structure of an oil-gas separator according to some embodiments of the present application; and

[0023] Figure 6 A perspective view of a partition plate and a flow blocking component according to some embodiments of the present application is shown.

[0024] Description of reference numerals:

[0025] 10-housing; 11-fluid inlet; 12-drain outlet; 13-air outlet; 14-fuel filling port; 15-separation chamber; 16-swirl space; 17-steady flow space; 18-oil outlet; 19-oil return pipe;

[0026] 20-dividing plate;

[0027] 30- baffle component; 31- baffle; 32- first baffle; 33- second baffle; 34- support portion; 35- first support plate; 36- second support plate; 37- guide hole;

[0028] 40- partition tube; 41- diversion space. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0030] As used herein, the term "including" and its variations represent open inclusion, i.e., "including but not limited to." Unless otherwise stated, the term "or" means "and / or." The term "based on" means "based at least in part on." The terms "one example embodiment" and "an embodiment" mean "at least one example embodiment." The term "another embodiment" means "at least one additional embodiment." The terms "first," "second," etc. may refer to different or identical objects.

[0031] The present application embodiment provides an oil-gas separator, see Figures 1 to 6 As shown, the oil-gas separator of the embodiment of the present application includes a housing 10 , a baffle component 30 and a partition plate 20 .

[0032] The interior of the shell 10 is provided with a separation chamber 15, and the shell 10 is provided with an air outlet 13, an oil outlet 18 and a fluid inlet 11 which are connected to the separation chamber 15. The air outlet 13 is located at the top of the shell 10, the oil outlet 18 is located at the bottom of the shell 10, and the fluid inlet 11 is located on the side wall of the shell 10 and close to the middle or upper part of the shell 10. Alternatively or additionally, the separation chamber 15 can be cylindrical or approximately cylindrical. Alternatively or additionally, the shell 10 can include a barrel, an upper head and a lower head. The barrel can include a cylindrical structure with openings at both ends, and the axis of the barrel can extend vertically. The upper head can cover the top opening of the barrel, and the lower head can cover the bottom opening of the barrel.

[0033] Alternatively or additionally, the fluid inlet 11 may be provided near the top of the barrel. For example, the fluid inlet 11 may be configured to allow the oil-gas mixed fluid to flow into the separation chamber 15 along a tangential direction close to the barrel.

[0034] Alternatively or additionally, the upper head can be roughly semicircular, and the air outlet 13 can be set at the top center of the upper head. The lower head can also be roughly semicircular, and the oil outlet 18 can be set at the bottom of the lower head to facilitate oil discharge, such as Figure 4 Furthermore, the oil outlet 18 may be connected to an oil return pipe 19, through which the oil can be refluxed for recycling. Figure 3 It is understood that the above-mentioned structure of the housing 10 is merely exemplary, and in actual application, the housing 10 can be constructed in any appropriate shape. The present application embodiment is not limited in this respect.

[0035] The baffle 30 is located at the bottom of the separation chamber 15. It is used to prevent the oil accumulated at the bottom of the separation chamber 15 from rotating. Specifically, as the airflow rotates through the separation chamber 15, the oil accumulated at the bottom of the separation chamber 15 is easily disturbed by the airflow. The baffle 30 prevents the oil from rotating, thereby improving its stability, preventing or reducing the formation of foam in the oil-gas separator, and thus improving the oil-gas separation effect.

[0036] A partition plate 20 is disposed within the separation chamber 15 near the vertical center of the separation chamber 15. The partition plate 20 extends laterally to divide the separation chamber 15 into a swirl flow space 16 located above the partition plate 20 and a steady flow space 17 located between the partition plate 20 and the flow baffle 30. A first gap is defined between the outer periphery of the partition plate 20 and the inner wall of the separation chamber 15, thereby connecting the swirl flow space 16 with the warm flow space.

[0037] During actual use, the oil-gas mixture flows into the vortex space 16 of the separation chamber 15 through the fluid inlet 11, and rotates and descends in the vortex space 16. As the oil-gas mixture rotates and descends, part of the oil will collide with the inner wall of the separation chamber 15, adhere to the inner wall of the separation chamber 15, and then flow to the bottom of the separation chamber 15 along the inner wall of the separation chamber 15. After the oil-gas mixture collides with the partition plate 20 after primary separation, the gas flows upward, and part of the oil will adhere to the partition plate 20 and drip from the partition plate 20 to the bottom of the separation chamber 15. Although a small part of the oil-gas mixture will flow into the steady flow space 17 through the first gap between the outer periphery of the partition plate 20 and the inner wall of the separation chamber 15, it will not cause severe disturbance to the oil in the steady flow space 17, which can improve the oil-gas separation effect. In addition, a baffle is provided at the bottom of the separation chamber to prevent the oil accumulated at the bottom of the separation chamber from rotating, thereby stabilizing the oil height at the bottom of the oil-gas separator and avoiding / reducing the generation of foam, thereby improving the oil-gas separation effect.

[0038] In some embodiments, a partition 40 is provided in the middle or upper part of the separation chamber 15, and a second gap is provided between the outer wall of the partition 40 and the inner wall of the separation chamber 15, so as to form a guide space 41 with an annular cross section through the second gap. The outer periphery of the guide space 41 is connected to the fluid inlet 11, and the bottom end of the guide space 41 is connected to the vortex space 16. During actual operation, the oil-gas mixed fluid flows through the guide space 41 of the fluid inlet 11. Under the guidance of the partition 40, the oil-gas mixed fluid flows around the guide space 41 with an annular cross section, so that the oil-gas mixed fluid forms a high-speed rotation motion, thereby achieving cyclone separation. Afterwards, the oil-gas mixed fluid flows into the vortex space 16 through the bottom end of the guide space 41. Under the action of inertia, the oil-gas mixed fluid will still maintain a high-speed rotation motion to perform oil-gas separation. The separated gas flows into the swirl space 16 through the bottom end of the guide space 41 and is discharged through the gas outlet 13. The separated oil drips along the inner wall of the separator 40 or the separation chamber 15 to the bottom of the separation chamber 15. This helps to increase the centrifugal force of the oil-gas mixture and further improve the oil-gas separation effect.

[0039] Alternatively or additionally, the partition 40 may comprise a cylindrical structure with both ends open. The top end of the partition 40 may be connected to the top of the housing 10, for example, by welding. The bottom end of the cylindrical cavity of the partition 40 may be in communication with the vortex space 16, and the top end of the cylindrical cavity of the partition 40 may be in communication with the gas outlet 13, so that the gas after oil and gas separation in the vortex space 16 can flow through the cylindrical cavity of the partition 40 into the gas outlet 13 and ultimately be discharged through the gas outlet 13.

[0040] In some embodiments, a fuel filler port 14 is provided on the periphery of the housing 10 and is located below the partition plate 20. Figure 3 and Figure 4 As shown, the partition plate 20 can be positioned in the vertical middle of the housing 10, and the oil filler port 14 can be positioned slightly below the vertical middle of the housing 10. This allows oil to be injected through the oil filler port 14 below the partition plate 20, preventing the swirling airflow and oil in the swirl space 16 from intersecting. This prevents the oil filling process from interfering with the oil-gas separation process, thus ensuring the separation effect of the oil-gas separator.

[0041] In some embodiments, Figure 5 and Figure 6As shown, the partition plate 20 can be circular, with the axis of the partition plate 20 coinciding with the axis of the housing 10 and the diameter of the partition plate 20 being smaller than the diameter of the housing 10. This ensures that a first gap of uniform width is maintained between the outer periphery of the partition plate 20 and the inner wall of the separation chamber 15, ensuring that the crudely separated oil flows evenly along the inner wall through the annular first gap into the steady flow space 17, thereby improving the oil stability in the steady flow space 17 and further enhancing the oil-gas separation effect.

[0042] In some embodiments, Figures 4 to 6 As shown, the baffle component 30 may include at least one baffle 31 and a support portion 34. The at least one baffle 31 is provided at the bottom of the separation chamber 15, and the at least one baffle 31 can be extended vertically to prevent the oil accumulated at the bottom of the separation chamber 15 from rotating. The support portion 34 extends vertically, the bottom end of the support portion 34 is connected to the at least one baffle 31, and the top end of the support portion 34 is connected to the first baffle 32 to support the partition plate 20. The at least one baffle 31 can effectively prevent the oil accumulated at the bottom of the separation chamber 15 from rotating to prevent the oil at the bottom from swirling and causing the oil level to rise, thereby affecting the oil-gas separation effect. Using the baffle component 30 to support the partition plate 20 is conducive to simplifying the internal structure of the separation chamber 15, thereby helping to reduce production costs.

[0043] In some embodiments, the support portion 34 includes a first support plate 35 and a second support plate 36. One side edge of the first support plate 35 is connected to one side edge of the second support plate 36 to form a support portion 34 having an L-shaped cross section. The L-shaped cross section of the support portion 34 provides high structural strength. Furthermore, the provision of only two support plates can stably support the separator plate 20, reducing production costs while also improving the stability and robustness of the oil-gas separator.

[0044] Alternatively or additionally, the support portion 34 can be formed by bending a plate (e.g., a steel plate). This helps reduce processing difficulty and production costs. Alternatively or additionally, the support portion 34 can extend along the axis of the shell 10 or approximately along the axis of the shell 10. This helps maintain balanced force on the partition plate 20 to improve the stability of the partition plate 20. It should be noted that the specific structure of the above-mentioned support portion 34 is only exemplary, and the support portion 34 can be constructed into any shape suitable for supporting the partition plate 20 according to actual needs.

[0045] In some embodiments, Figures 4 to 6As shown, the at least one baffle 31 may include a first baffle 32 and a second baffle 33. The first baffle 32 extends from one side edge of the support portion 34 toward the inner wall of the separation chamber 15. The second baffle 33 extends from the other side edge of the support portion 34 toward the inner wall of the separation chamber 15 in a direction different from that of the first baffle 32. The first baffle 32 and the second baffle 33 can effectively prevent the oil at the bottom of the oil-gas separator from rotating.

[0046] Alternatively or additionally, the support portion 34 can extend along the axis of the shell 10, so that the first baffle 32 and the second baffle 33 respectively extend from a position close to the axis of the shell 10, approximately along the radial direction of the shell 10 to the inner wall of the separation chamber 15, which is beneficial to improving the flow stabilization effect of the flow baffle component 30.

[0047] Alternatively or additionally, one end of the first baffle 32 may be connected to one side edge of the support portion 34, and one end of the second baffle 33 may be connected to the other side edge of the support portion 34. The other end of the first baffle 32 and the other end of the second baffle 33 may extend in opposite directions toward the inner wall of the separation chamber 15. This not only helps to improve the flow stabilization effect of the oil, but also helps to improve the stability of the separator plate 20.

[0048] Alternatively or additionally, the bottom surface of the separation chamber 15 may be arc-shaped, and the lower edges of the first baffle 32 and the second baffle 33 may be arc-shaped so as to fit closely with the bottom surface of the separation chamber 15, thereby ensuring a stabilizing flow effect.

[0049] In some embodiments, the support portion 34 may include a first support plate 35 and a second support plate 36 that are perpendicular to each other, and one side edge of the first support plate 35 may be connected to the other side edge of the second support plate 36. The first baffle 32 may extend from the other side edge of the first support plate 35 toward the inner wall of the separation chamber 15, and the second baffle 33 may extend from the other side edge of the second support plate 36 toward the inner wall of the separation chamber 15 in a direction different from that of the first baffle 32. Alternatively or additionally, the first baffle 32 and the first support plate 35 are located in the same plane, and the second baffle 33 and the first baffle 32 extend toward the inner wall of the separation chamber 15 in opposite directions. The first baffle 32 and the second baffle 33 are staggered, so that the cross-section of the flow blocking component 30 at the first baffle 32 and the second baffle 33 is Z-shaped or approximately Z-shaped, which can stably support the partition plate 20.

[0050] In some embodiments, the baffle member 30 can be formed by integral bending. For example, a plate (such as a steel plate) can be cut into a shape similar to an inverted T, and then bent twice to form the baffle member 30. Figures 4 to 6 The flow blocking component 30 shown can greatly simplify the processing difficulty of the flow blocking component 30, thereby reducing the production cost.

[0051] In some embodiments, a guide hole 37 is provided at the bottom end of the baffle member 30. The guide hole 37 passes through the baffle member 30 in a transverse direction, so that the oil can flow from one side of the baffle member 30 to the other side of the baffle member 30 through the guide hole 37. For example, Figure 4 and Figure 5 As shown, the bottom surface of the separation chamber 15 can be approximately semicircular, and a drain port 12 and an oil outlet 18 can be respectively provided on the bottom surface of the separation chamber 15. The drain port 12 can be provided in the middle of the bottom surface of the separation chamber 15 (for example, at the lowest point of the bottom surface of the separation chamber 15), and the drain port 12 can be located on one side of the baffle component 30. The oil outlet 18 can be provided on the bottom surface of the separation chamber 15 and on the other side of the baffle component 30. A semicircular notch can be provided at the bottom end of the second support plate 36, and the semicircular notch and the bottom surface of the separation chamber 15 together define a guide hole 37. The oil on one side of the baffle component 30 can flow through the guide hole 37 to the side where the oil outlet 18 is located, and then be discharged through the oil outlet 18. Alternatively, the oil on the other side of the baffle component 30 can flow through the guide hole 37 to the side where the drain port 12 is located, and then be discharged through the drain port 12.

[0052] In some embodiments, the baffle member 30 can be connected to the partition plate 20 and the bottom of the housing 10 by welding. For example, the top of the support portion 34 can be connected to the partition plate 20 by welding, and the bottoms of the first baffle 32 and the second baffle 33 can be connected to the bottom surface of the separation chamber 15 by welding. Of course, the baffle member 30 can also be connected to the partition plate 20 and the bottom of the housing 10 by connectors. This application is not particularly limited in this regard.

[0053] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technical improvements in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. An oil-gas separator, characterized in that: include: a housing having a separation chamber, wherein the housing is provided with an air outlet, an oil outlet, and a fluid inlet connected to the separation chamber, wherein the air outlet is located at the top of the housing, the oil outlet is located at the bottom of the housing, and the fluid inlet is located on the side wall of the housing and near the middle or upper part of the housing; a flow blocking component, disposed at the bottom of the separation chamber, and configured to prevent the oil accumulated at the bottom of the separation chamber from rotating; as well as A partition plate is arranged in the separation chamber and close to the middle of the separation chamber in the vertical direction; the partition plate is spread horizontally to divide the separation chamber into a vortex space located above the partition plate and a steady flow space located between the partition plate and the baffle component; a first gap is provided between the outer periphery of the partition plate and the inner wall of the separation chamber to connect the vortex space and the steady flow space.

2. The oil-gas separator according to claim 1, characterized in that: The flow blocking component includes: at least one baffle disposed at the bottom of the separation chamber, the at least one baffle extending vertically to prevent the oil accumulated at the bottom of the separation chamber from rotating; and The support portion extends vertically, wherein the bottom end of the support portion is connected to the at least one baffle, and the top end of the support portion is connected to the partition plate to support the partition plate.

3. The oil-gas separator according to claim 2, characterized in that: The support portion includes a first support plate and a second support plate, and one side edge of the first support plate is connected to one side edge of the second support plate to form the support portion with an L-shaped cross section.

4. The oil-gas separator according to claim 3, characterized in that: The at least one baffle comprises: a first baffle extending from the other side edge of the first support plate toward the inner wall of the separation chamber; and The second baffle extends from the other side edge of the second support plate toward the inner wall of the separation chamber along a direction different from that of the first baffle.

5. The oil-gas separator according to claim 4, characterized in that: The first baffle plate and the first support plate are located in the same plane, and the second baffle plate and the first baffle plate extend along the inner wall of the separation chamber in opposite directions respectively.

6. The oil-gas separator according to claim 4, characterized in that: The cross section of the flow blocking component at the first baffle plate and the second baffle plate is Z-shaped.

7. The oil-gas separator according to claim 2, characterized in that: The at least one baffle comprises: a first baffle extending from a side edge of the support portion toward an inner wall of the separation chamber; and The second baffle extends from the other side edge of the support portion toward the inner wall of the separation chamber along a direction different from that of the first baffle.

8. The oil-gas separator according to any one of claims 2 to 7, characterized in that: The baffle component is formed by integral bending.

9. The oil-gas separator according to claim 8, characterized in that: The baffle component is connected to the partition plate and / or the bottom of the shell by welding.

10. The oil-gas separator according to claim 1, characterized in that: A guide hole is provided at the bottom end of the flow blocking component, so that oil can flow from one side of the flow blocking component to the other side of the flow blocking component through the guide hole.

11. The oil-gas separator according to claim 1, characterized in that: The side wall of the shell is provided with a fuel filling port communicated with the separation chamber, and the fuel filling port is located below the partition plate.

12. The oil-gas separator according to claim 1, characterized in that: A partition is provided in the middle or upper part of the separation chamber, and a second gap is provided between the outer wall of the partition and the inner wall of the separation chamber, so as to form a guide space with a ring-shaped cross section through the second gap; the outer periphery of the guide space is connected to the fluid inlet, and the bottom end of the guide space is connected to the vortex space.

Images