Oil-gas separator
By combining the outer cylinder, inner cylinder, and fiberglass paper, the efficiency problem caused by the reduced permeability of the oil-absorbing paper in existing oil-gas separators is solved, achieving efficient oil-gas separation and convenient maintenance.
Patent Information
- Application Number
- CN202520241045.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-14
AI Technical Summary
Existing oil-gas separators suffer from reduced permeability of the oil-absorbing paper filter due to prolonged operation, resulting in decreased working efficiency.
The system employs a combination structure of an outer cylinder, an inner cylinder, and fiberglass paper. By setting an annular cavity between the outer and inner cylinders, filling it with fiberglass paper, and then spiraling and stacking it, combined with an air intake pipe to control the air pressure, the oil and gas condense into large oil droplets in the fiberglass paper and settle to the bottom of the inner cylinder for collection.
It achieves efficient oil-gas separation, improves separation efficiency, and facilitates maintenance and oil recovery through a detachable connection structure.
Smart Images

Figure CN223615629U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil-gas separator technology, specifically to an oil-gas separator. Background Technology
[0002] The function of the air compressor oil-gas separator filter element is to take the oil-containing compressed air generated by the host into the cooler, and then filter it through the oil-gas separator after mechanical separation. The filter element intercepts and aggregates the oil mist in the gas, forming oil droplets that are concentrated at the bottom of the filter element and returned to the compressor lubrication system through the oil return pipe, so that the compressor discharges purer, higher-quality compressed air.
[0003] Currently, existing oil-gas separators typically use oil-absorbing paper as a filtration device to achieve oil-gas separation. However, since the oil-absorbing paper can only retain oil inside and the long-term recording will directly reduce the permeability of the filtration device, thereby reducing the overall working efficiency of the oil-gas separator. Utility Model Content
[0004] To address the problem that existing oil-gas separators reduce their efficiency during prolonged operation, this invention provides an oil-gas separator.
[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0006] An oil-gas separator includes a housing, inside which is a separator body. The separator body includes an outer cylinder, and the outer cylinder is fixedly installed on one side of the inner wall of the housing. An inner cylinder is installed on the inner wall of the outer cylinder. An annular cavity is provided between the outer cylinder and the inner cylinder. The annular cavity is filled with fiberglass paper in a spiral stacked arrangement. The outer wall of the outer cylinder has several external holes, and the inner wall of the inner cylinder has several internal holes, which correspond to the external holes. Further, an air inlet is provided on one side of the outer wall of the housing, and an air inlet pipe is provided on one side of the air inlet. The air inlet pipe includes a mounting base, which is connected to the outer wall of the housing. A through hole is provided on one side of the mounting base, and a pipe body is inserted through the through hole.
[0007] The advantage of adopting the above-mentioned further solution is that the pipe body is easily fixed by connecting and using the mounting base.
[0008] Furthermore, one end of the tube extends into the interior of the outer shell and is spaced apart from the outer wall of the oil-gas separator body.
[0009] The beneficial effect of adopting the above-mentioned further solution is that, by setting the spacing, the oil and gas transported inside the pipe body can be evenly distributed on the outside of the oil-gas separator body.
[0010] Furthermore, an air outlet pipe is inserted and connected to the top surface of the outer shell, and the bottom end of the air outlet pipe is connected to the top end of the inner cylinder.
[0011] The advantage of adopting the above-mentioned further solution is that the connection of the gas outlet pipe facilitates the discharge of the gas separated inside the inner cylinder.
[0012] Furthermore, the bottom end of the outer shell is provided with a bottom cover, the bottom cover includes a cover body, and a screw tube is installed on the top edge of the cover body. The outer wall of the screw tube is threadedly connected to the inner wall of the outer shell.
[0013] The advantage of adopting the above-mentioned further solution is that, through the connection of the screw tube, a detachable connection structure is formed between the bottom cover and the outer shell.
[0014] Furthermore, a collection cylinder is installed at the center of the top surface of the cover, and the top end of the collection cylinder is connected to the bottom end of the inner cylinder.
[0015] The beneficial effect of adopting the above-mentioned further solution is that the installation and use of the collection cylinder facilitates the collection of oil sediment inside the oil-gas separator body.
[0016] Furthermore, an oil return pipe is inserted and connected to the bottom surface of the bottom cover, and the top end of the oil return pipe extends into the interior of the collection cylinder.
[0017] The advantage of adopting the above-mentioned further solution is that, through the connection of the return oil pipe, it is convenient to transport the oil in the collection cylinder back to the oil circuit.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This type of oil-gas separator, through the combined use of an outer cylinder, an inner cylinder, and fiberglass paper, allows the separator body to perform more efficient oil-gas separation within the outer shell. An annular cavity is created between the outer and inner cylinders to provide space for the fiberglass paper. The fiberglass paper is then coiled and stacked to form a multi-layered structure. Furthermore, by controlling the air pressure outside the outer cylinder through the air inlet pipe, the oil and gas permeating the fiberglass paper condense, facilitating the aggregation of small oil droplets into larger ones, which then enter the inner cylinder and settle in the collection cylinder at the bottom cover, thus completing the efficient oil-gas separation process. Attached Figure Description
[0020] Figure 1 A perspective view of an oil-gas separator provided by this utility model;
[0021] Figure 2 A cross-sectional view of an oil-gas separator provided by this utility model;
[0022] Figure 3A schematic diagram of the air inlet pipe of an oil-gas separator provided by this utility model;
[0023] Figure 4 A schematic diagram of the bottom cover structure of an oil-gas separator provided by this utility model;
[0024] Figure 5 A cross-sectional view of the main structure of an oil-gas separator provided by this utility model.
[0025] In the diagram: 100, outer casing; 200, air inlet pipe; 2001, mounting base; 2002, through hole; 2003, pipe body; 300, air outlet pipe; 400, bottom cover; 4001, cover body; 4002, spiral tube; 4003, collection cylinder; 500, separator body; 5001, outer cylinder; 5002, inner cylinder; 5003, fiberglass paper; 5004, outer hole; 5005, inner hole; 600, air inlet; 700, oil return pipe. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Example 1
[0028] Please see Figures 1-5This utility model provides a technical solution: an oil-gas separator, including a shell 100, an oil-gas separator body 500 inside the shell 100, an outer cylinder 5001, an outer cylinder 5001 fixedly installed on one side of the inner wall of the shell 100, an inner cylinder 5002 installed on the inner wall of the outer cylinder 5001, an annular cavity between the outer cylinder 5001 and the inner cylinder 5002, the annular cavity being filled with fiberglass paper 5003, the fiberglass paper 5003 being distributed in a spiral stacked pattern, a plurality of external holes 5004 on the outer wall of the outer cylinder 5001, and a plurality of internal holes on the inner wall of the inner cylinder 5002. 5005, several inner holes 5005 and several outer holes 5004 fit together. By setting an annular cavity between the outer cylinder 5001 and the inner cylinder 5002, space is provided for the glass fiber paper 5003 to fill. The glass fiber paper 5003 is arranged in a spiral stack to form a multi-layer structure. Furthermore, by controlling the air pressure outside the outer cylinder 5001 through the air inlet pipe 200, the oil and gas that have permeated into the glass fiber paper 5003 are condensed, which facilitates the aggregation of small oil droplets into large oil droplets until they enter the interior of the inner cylinder 5002 and settle in the collection cylinder 4003 in the bottom cover 400, thereby completing the efficient oil and gas separation work.
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Example 2
[0031] Please see Figures 1-5 As one embodiment of this utility model, further, an air inlet 600 is provided on one side of the outer wall of the outer shell 100, and an air inlet pipe 200 is provided on one side of the air inlet 600. The air inlet pipe 200 includes a mounting base 2001, and the outer wall of the outer shell 100 is connected to the mounting base 2001. A through hole 2002 is provided on one side of the mounting base 2001, and a pipe body 2003 is inserted and connected inside the through hole 2002. The connection of the mounting base 2001 facilitates the fixing of the pipe body 2003. One end of the 2003 extends into the interior of the outer shell 100 and is spaced from the outer wall of the oil-gas separator body 500. The spacing allows the oil and gas transported inside the pipe 2003 to be evenly distributed on the outside of the oil-gas separator body 500. An outlet pipe 300 is inserted and connected to the top surface of the outer shell 100. The bottom end of the outlet pipe 300 is connected to the top end of the inner cylinder 5002. The connection of the outlet pipe 300 facilitates the discharge of the separated gas inside the inner cylinder 5002 to the corresponding facility.
[0032] Example 3
[0033] Please see Figures 1-5 As an embodiment of this utility model, the bottom end of the outer shell 100 is provided with a bottom cover 400. The bottom cover 400 includes a cover body 4001. A screw tube 4002 is installed on the top edge of the cover body 4001. The outer wall of the screw tube 4002 is threadedly connected to the inner wall of the outer shell 100. Through the connection of the screw tube 4002, the bottom cover 400 and the outer shell 100 form a detachable connection structure. A collecting cylinder 4003 is installed at the center of the top surface of the cover body 4001. The top end of the collecting cylinder 4003 is connected to the bottom end of the inner cylinder 5002. Through the installation and use of the collecting cylinder 4003, it is convenient to collect the oil material settled inside the oil-gas separator body 500. A return oil pipe 700 is inserted and connected to the bottom surface of the bottom cover 400. The top end of the return oil pipe 700 extends into the inside of the collecting cylinder 4003. Through the connection of the return oil pipe 700, it is convenient to transport the oil material in the collecting cylinder 4003 back to the oil circuit. Specifically, the working principle of this type of oil-gas separator is as follows: First, check the structure of the separator for integrity. Only after ensuring the structure is intact should it be put into use. An annular cavity is provided between the outer cylinder 5001 and the inner cylinder 5002, providing space for the fiberglass paper 5003 to fill. The fiberglass paper 5003 is then coiled and stacked to form a multi-layered structure. Furthermore, the air pressure outside the outer cylinder 5001 is controlled through the air inlet pipe 200, causing the oil and gas that have permeated into the fiberglass paper 5003 to condense, facilitating... Small oil droplets are aggregated into larger oil droplets, which then enter the inner cylinder 5002 and settle in the collection cylinder 4003 of the bottom cover 400. At the same time, the separated gas is transported to the outlet pipe 300 and discharged into the designated recovery container, thus completing the efficient oil-gas separation work. Furthermore, the connection of the solenoid 4002 allows the bottom cover 400 and the outer shell 100 to form a detachable connection structure. The oil return pipe 700 facilitates the return of the oil in the collection cylinder 4003 to the oil circuit.
Claims
1. An oil-gas separator, characterized in that, The device includes a housing (100), and an oil-gas separator body (500) is provided inside the housing (100). The oil-gas separator body (500) includes an outer cylinder (5001). The outer cylinder (5001) is fixedly installed on one side of the inner wall of the housing (100). An inner cylinder (5002) is installed on the inner wall of the outer cylinder (5001). An annular cavity is provided between the outer cylinder (5001) and the inner cylinder (5002). The annular cavity is filled with fiberglass paper (5003). The fiberglass paper (5003) is distributed in a spiral stacked manner. The outer wall of the outer cylinder (5001) has a plurality of external holes (5004). The inner wall of the inner cylinder (5002) has a plurality of internal holes (5005). The plurality of internal holes (5005) and the plurality of external holes (5004) match each other.
2. The oil-gas separator according to claim 1, characterized in that, An air inlet (600) is provided on one side of the outer wall of the housing (100), and an air inlet pipe (200) is provided on one side of the air inlet (600). The air inlet pipe (200) includes a mounting base (2001). The outer wall of the housing (100) is connected to the mounting base (2001). A through hole (2002) is provided on one side of the mounting base (2001), and a tube (2003) is inserted and connected inside the through hole (2002).
3. An oil-gas separator according to claim 2, characterized in that, One end of the tube (2003) extends into the interior of the outer shell (100) and is spaced from the outer wall of the oil-gas separator body (500).
4. An oil-gas separator according to claim 1, characterized in that, An air outlet pipe (300) is inserted and connected to the top surface of the outer shell (100), and the bottom end of the air outlet pipe (300) is connected to the top end of the inner cylinder (5002).
5. An oil-gas separator according to claim 1, characterized in that, The bottom end of the outer shell (100) is provided with a bottom cover (400), the bottom cover (400) includes a cover body (4001), and a screw tube (4002) is installed on the top edge of the cover body (4001). The outer wall of the screw tube (4002) is threadedly connected to the inner wall of the outer shell (100).
6. An oil-gas separator according to claim 5, characterized in that, A collection cylinder (4003) is installed at the center of the top surface of the cover (4001), and the top end of the collection cylinder (4003) is connected to the bottom end of the inner cylinder (5002).
7. An oil-gas separator according to claim 6, characterized in that, The bottom surface of the bottom cover (400) is connected to a return oil pipe (700), and the top end of the return oil pipe (700) extends into the interior of the collection cylinder (4003).