An oil and gas barrel and an air compressor equipped with the same
By installing a rotating cooling component in the oil-gas separator, the problems of lubricating oil misalignment and oil-gas foaming are solved, achieving more efficient oil-gas separation and lubrication, and reducing the energy consumption and maintenance costs of the air compressor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SAZHEN COMPRESSOR SHANGHAI CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing air compressor, during the oil-gas separation process, the high-speed rotation of the lubricating oil generates centripetal force that deviates from the center, resulting in a reduction in lubricating oil, accumulation of oil-gas foam, and reduced separation capacity. Furthermore, the bursting of oil-gas foam impacts the metal surface, affecting the lifespan and efficiency of the air compressor.
A rotating cooling component, including a rotating bearing and a cooling plate, is installed in the oil-gas tank. The cooling plate blocks the flow of lubricating oil and generates airflow, reducing oil-gas foam and enhancing the flow speed and cooling effect of lubricating oil.
It reduces oil and gas foam generation, improves separation capacity, avoids oil leakage, accelerates lubricating oil flow, lowers temperature, improves the cooling and lubrication effect of the air compressor, and reduces energy consumption.
Smart Images

Figure CN224485044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air compression technology, and in particular to an oil-gas tank for an air compressor. Background Technology
[0002] Currently, in the operation of common air compressors on the market, when the oil-gas mixture generated by the compressor undergoes rotational separation in the oil-gas separator, it causes the lubricating oil in the oil-gas separator to rotate, which can lead to the following problems:
[0003] 1. When the lubricating oil rotates at high speed in the oil-gas separator, it will generate a certain centripetal force, which will cause it to deviate from the center of the oil-gas separator. This will lead to a reduction in the lubricating oil entering the oil outlet suction pipe of the oil-gas separator, and may even cause the compressor to shut down due to high temperature due to lack of oil, affecting the production efficiency of the air compressor.
[0004] 2. When lubricating oil rotates at high speed in the oil-gas separator, it generates oil-gas foam. When the accumulation height of the oil-gas foam in the oil-gas separator reaches the surface of the oil-fine separator, the oil-gas foam will be adsorbed onto the surface of the oil-fine separator, reducing the separation capacity of the oil-gas separator, and even causing oil leakage. Oil-gas foam will accelerate the deterioration of lubricating oil, causing the lubricating oil to fail to perform its cooling and lubrication functions, which will lead to high temperature failure of the compressor host. At the same time, it will also accelerate the mechanical wear of the compressor host, affecting its service life. When lubricating oil containing oil-gas foam is compressed, once the oil-gas foam bursts under high pressure, the energy generated by the explosion will impact the metal surface in the air compressor, causing cavitation corrosion on the metal surface, affecting the service life of the air compressor. Utility Model Content
[0005] To reduce the generation of oil-gas foam in an oil-gas separator, this invention proposes an oil-gas separator comprising a barrel body, a separating inner liner, and a rotating cooling component. The separating inner liner and the rotating cooling component are installed within the barrel body, with the rotating cooling component located below the separating inner liner. The rotating cooling component includes a rotating bearing and a cooling plate. The central axis of the rotating bearing coincides with the central axis of the barrel body, and the cooling plate is connected to the rotating bearing and rotates around it. When separating the oil-gas mixture formed by the compressor in an air compressor, the rotating cooling component rotates under the influence of the gas obtained from the coarse separation. This rotation not only blocks the sprayed lubricating oil using the cooling plate, allowing it to flow along the inner wall of the barrel body and the cooling plate to the bottom, but also utilizes the airflow generated by the rotating cooling plate to force the lubricating oil accumulated at the bottom of the barrel downwards. This reduces the generation of oil-gas foam during separation, accelerates the flow rate of the lubricating oil, reduces pressure loss, and better cools and lubricates the compressor. Furthermore, the rotation of the rotating cooling component accelerates the gas flow within the tank, thereby speeding up the cooling of the lubricating oil at the bottom of the tank and lowering its temperature, thus achieving the cooling effect of the oil-gas tank of this invention. Therefore, by incorporating a rotating cooling component into the oil-gas tank of this invention, oil-gas foam generation during the separation process can be reduced, the lubricating oil flow rate can be accelerated, better cooling and lubrication of the compressor unit can be achieved, and a cooling effect can be realized.
[0006] Preferably, the rotary cooling component includes multiple cooling plates, which are evenly distributed around the rotary bearing. This arrangement of multiple cooling plates in the rotary cooling component increases the airflow generated by the rotation of the cooling plates, further reducing oil-gas foam generated during the separation process of the lubricating oil, accelerating the flow rate of the lubricating oil, and improving the cooling effect of the oil-gas separator of this invention. Furthermore, the plane containing the cooling plates is parallel to the central axis of the rotary bearing. Such cooling plates are not only simple to design but also maximize the airflow generated by the rotation of the rotary cooling component, thereby further reducing oil-gas foam generated during the separation process of the lubricating oil, accelerating the flow rate of the lubricating oil, and further improving the cooling effect of the oil-gas separator of this invention.
[0007] Preferably, a support member for installing the rotating cooling component is provided inside the barrel, and the support member is located above and close to the oil suction pipe in the barrel. This facilitates the installation of the rotating cooling component and avoids interference between the cooling plate in the rotating cooling component and the oil suction pipe during rotation. Further, the support member is a horizontal support plate, which is fixed in the barrel and perpendicular to the central axis of the barrel. Using a horizontal support plate as the support member results in a simple structure and convenient and quick installation. More preferably, both ends of the horizontal support plate are welded to the inner wall of the barrel. This welding method not only facilitates installation and fixation but also improves the installation stability of the horizontal support plate in the barrel, thereby improving the installation stability of the rotating cooling component.
[0008] Furthermore, this utility model proposes an air compressor equipped with any of the aforementioned oil-gas separators. By incorporating any of these oil-gas separators into the air compressor of this utility model, the presence of a rotating cooling component within the separator reduces oil-gas foam generated during the separation process, thereby improving the separator's separation capacity and preventing oil leakage. It also accelerates the flow rate of the lubricating oil, reducing pressure loss and improving the cooling and lubrication effects of the compressor unit in this utility model. Furthermore, the oil-gas separator's built-in cooling function further enhances the cooling effect of the lubricating oil in this utility model's air compressor, thus reducing the cooling energy consumption of the cooler and achieving energy conservation and emission reduction. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of the oil and gas tank of this utility model;
[0010] Figure 2 for Figure 1 A schematic diagram of the AA cross-sectional structure in the diagram;
[0011] Figure 3 for Figure 1 A schematic diagram of the BB cross-sectional structure. Detailed Implementation
[0012] Below, in conjunction with Figures 1 to 3 This invention provides a detailed description of the oil-gas tank and the air compressor equipped with the oil-gas tank.
[0013] like Figures 1 to 3As shown, the oil-gas separator of this utility model includes a barrel body 1, a separating inner liner 2, and a rotary cooling component 3. The separating inner liner 2 and the rotary cooling component 3 are installed in the barrel body 1, with the rotary cooling component 3 located below the separating inner liner 2. The rotary cooling component 3 includes a rotary bearing 31 and a cooling plate 32. The central axis of the rotary bearing 31 coincides with the central axis of the barrel body 1. The cooling plate 32 is connected to the rotary bearing 31 and rotates around the rotary bearing 31. When the oil-gas separator separates the oil-gas mixture formed by the compressor in the air compressor, the rotary cooling component 3 rotates under the drive of the gas obtained from the coarse separation. It can both block the sprayed lubricating oil with the cooling plate 32, allowing the lubricating oil to flow down the inner wall of the barrel body 1 and the cooling plate 32 to the bottom of the barrel body 1, and use the airflow generated by the rotation of the cooling plate 32 to squeeze the lubricating oil accumulated at the bottom of the barrel body 1 downwards, reducing the oil-gas foam generated during the separation process, and also accelerating the flow speed of the lubricating oil, reducing the pressure loss of the lubricating oil, and better cooling and lubricating the compressor. Furthermore, the rotation of the rotating cooling component 3 accelerates the gas flow within the barrel 1, thereby speeding up the cooling of the lubricating oil at the bottom of the barrel 1 and reducing its temperature, thus achieving the cooling effect of the oil-gas barrel of this invention. Therefore, the rotating cooling component 3 in the oil-gas barrel of this invention reduces oil-gas foam generated during the separation process, accelerates the flow rate of the lubricating oil, better cools and lubricates the compressor, and achieves a cooling effect. Preferably, the rotating cooling component 3 includes multiple cooling plates 32, which are evenly distributed around the rotating bearing 31. This arrangement of multiple cooling plates 32 in the rotating cooling component 3 increases the airflow generated by the rotation of the cooling plates 32, further reducing oil-gas foam generated during the separation process, accelerating the flow rate of the lubricating oil, and enhancing the cooling effect of the oil-gas barrel of this invention. Preferably, the plane containing the cooling plates 32 is parallel to the central axis of the rotating bearing 31. Such a cooling plate 32 is not only simple to set up, but also maximizes the airflow generated by the rotation of the rotating cooling component 3, thereby further reducing the oil and gas foam generated during the separation process of lubricating oil, accelerating the flow rate of lubricating oil, and further improving the cooling effect of the oil and gas tank of this utility model. Preferably, when the cooling plate 32 in the rotating cooling component 3 is at the same height as the oil filling port 11 on the tank body 1, a gap is set between the free end of the cooling plate 32 and the oil filling port 11 when the cooling plate 32 faces the oil filling port 11, so as to avoid the cooling plate 32 interfering with the oil filling port 11 during the rotation process and affecting the rotation of the cooling plate 32. That is to say, when specifically setting up the rotating cooling component 3, attention should be paid to both the height relationship between the cooling plate 32 and the separation liner 2, and the positional relationship between the cooling plate 32 and the oil filling port 11, so as to avoid the cooling plate 32 interfering with the separation liner 2 or the oil filling port 11 during the rotation process and affecting the rotation of the cooling plate 32.
[0014] like Figure 2 and3 As shown, in the oil-gas tank of this utility model, a support member 4 for installing the rotating cooling component 3 is provided inside the tank body 1, and the support member 4 is located above and close to the oil outlet suction pipe 12 in the tank body 1. This facilitates the installation of the rotating cooling component 3 and avoids interference between the cooling plate 32 in the rotating cooling component 3 and the oil outlet suction pipe 12 during rotation. Preferably, the support member 4 is a support horizontal plate, and the support horizontal plate is fixed in the tank body 1 and perpendicular to the central axis of the tank body 1. In this way, using a support horizontal plate as the support member 4 results in a simple structure and convenient and quick installation and fixing. Preferably, both ends of the support horizontal plate are welded to the inner wall of the tank body 1. In this way, the support horizontal plate is installed and fixed by welding, which not only facilitates installation and fixing but also improves the installation stability of the support horizontal plate in the tank body 1, thereby improving the installation stability of the rotating cooling component 3. In other words, when specifically setting the rotating cooling component 3, attention should be paid to the height relationship between the cooling plate 32 and the oil suction pipe 12, so as to avoid interference between the cooling plate 32 and the oil suction pipe 12 during the rotation process, which would affect the rotation of the cooling plate 32.
[0015] When the air compressor equipped with the aforementioned oil-gas separator is running, the oil-gas mixture formed by the compressor enters the separator body 1 through the upper mixing inlet 13. The oil-gas mixture then impacts the inner wall of the separator body 1 and the outer wall of the separating liner 2 at high speed for coarse separation, resulting in coarsely separated lubricating oil and coarsely separated gas. Part of the coarsely separated lubricating oil falls directly to the bottom of the separator body 1 or flows along the interior of the separator body 1 towards the bottom, while some adheres to the outer wall of the separating liner 2 and spills off during the high-speed rotation of the separating liner 2. The coarse separation gas flows in a ring between the barrel 1 and the separation liner 2, undergoing rotary separation to further separate the lubricating oil in the coarse separation gas into oil mist. After the gas reaches the bottom of the separation liner 2, it will enter the oil fine separator (not shown in the figure) in the separation liner 2 for further separation. The compressed air obtained from the separation is discharged from the air outlet at the top of the oil-gas barrel (not shown in the figure) and transported to the cooler for cooling before being supplied to the user. The lubricating oil obtained from the separation accumulates at the bottom of the oil fine separator. When the oil-gas mixture enters the oil-gas tank, the high-pressure injection of the mixture creates an airflow within the tank. This airflow drives the cooling plate 32 in the rotating cooling component 3, causing it to rotate around the rotating bearing 31. During rotation, the cooling plate 32 blocks the separated and spilled lubricating oil, allowing it to flow along the inner wall of the tank 3 and the cooling plate 32 to the bottom of the tank 1. The airflow generated by the cooling plate 32 during rotation compresses the lubricating oil downwards, preventing oil-gas foaming. Simultaneously, the airflow accelerates the flow of lubricating oil accumulated at the bottom of the tank 1, reducing pressure loss during flow and thus better cooling and lubricating the compressor unit in this air compressor. Furthermore, the airflow generated by the rotating cooling plate 32 accelerates the cooling rate of the lubricating oil accumulated at the bottom of the tank 1, achieving a cooling effect. Therefore, by assembling any of the above-mentioned oil-gas separators in the air compressor of this utility model, the presence of a cooling component 3 in the oil-gas separator can reduce the oil-gas foam generated during the separation process of the lubricating oil, thereby improving the separation capacity of the oil-gas separator, preventing oil leakage, and reducing the maintenance cost of the air compressor; it can also accelerate the flow rate of the lubricating oil and reduce the pressure loss of the lubricating oil, thereby improving the cooling and lubrication effect of the compressor host in the air compressor of this utility model, and preventing the compressor host from experiencing oil shortage or high temperature problems; since the oil-gas separator has its own cooling function, it can further improve the cooling effect of the lubricating oil in the air compressor of this utility model, thereby reducing the cooling energy consumption of the cooler in the air compressor of this utility model, and achieving energy saving and consumption reduction.
Claims
1. An oil and gas tank, characterized in that, The oil and gas tank includes a tank body, a separating inner liner, and a rotary cooling component. The separating inner liner and the rotary cooling component are installed in the tank body, and the rotary cooling component is located below the separating inner liner. The rotary cooling component includes a rotary bearing and a cooling plate. The central axis of the rotary bearing coincides with the central axis of the tank body. The cooling plate is connected to the rotary bearing and rotates around the rotary bearing.
2. The oil and gas tank according to claim 1, characterized in that, The rotating cooling component includes a plurality of cooling plates, which are evenly distributed around the rotating bearing.
3. The oil and gas tank according to claim 2, characterized in that, The plane containing the cooling plate is parallel to the central axis of the rotary bearing.
4. The oil and gas tank according to any one of claims 1-3, characterized in that, The barrel is provided with a support for installing the rotating cooling component, and the support is located above and close to the oil suction pipe in the barrel.
5. The oil and gas tank according to claim 4, characterized in that, The support is a horizontal support plate, which is fixed in the barrel and perpendicular to the central axis of the barrel.
6. The oil and gas tank according to claim 5, characterized in that, The two ends of the supporting horizontal plate are welded to the inner wall of the barrel.
7. An air compressor, characterized in that, The air compressor is equipped with an oil-gas separator as described in any one of claims 1-6.