CN107023347B - Low-noise rotary capturing adsorption type oil-gas separator - Google Patents
Low-noise rotary capturing adsorption type oil-gas separator Download PDFInfo
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- CN107023347B CN107023347B CN201710377116.0A CN201710377116A CN107023347B CN 107023347 B CN107023347 B CN 107023347B CN 201710377116 A CN201710377116 A CN 201710377116A CN 107023347 B CN107023347 B CN 107023347B
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Abstract
The invention discloses a low-noise rotary capturing adsorption type oil-gas separator which comprises a shell, wherein one end of the shell is provided with a driven shaft, and the other end of the driven shaft is provided with a turntable; the shell is internally provided with a central rotating shaft, one end of the central rotating shaft is provided with axial flow fan blades which are connected with the connecting pipe, and the other end of the central rotating shaft is provided with a tray which is connected with the inner ring of the sealing bearing; a filter cage is fixed between the connecting pipe and the tray, and a rotary filter screen is arranged in the filter cage at the joint of the connecting pipe and the tray; a plurality of spiral oil sweeping blades are uniformly arranged along the central rotating shaft, a plurality of groups of centrifugal oil sweeping blades are vertically arranged between the connecting pipe and the rotating disc, and a silencing filter screen is sleeved on the outer diameter edges of the plurality of groups of centrifugal oil sweeping blades between the connecting pipe and the rotating disc; the central rotating shaft at the connecting pipe is also provided with axial flow fan blades. The separator overcomes the defects of the traditional rotary centrifugal oil-gas separator, and can effectively reduce the decibel value of pneumatic noise while improving the oil-gas separation efficiency.
Description
Technical Field
The invention belongs to the technical field of environmental protection and energy saving of fuel engines, relates to a fuel engine crankcase leakage engine oil recovery technology, and particularly relates to a low-noise rotary capturing adsorption type oil-gas separator.
Background
Because a gap exists between the cylinder and the piston of the fuel engine, a small amount of high-pressure combustible mixed gas and burnt gas in the cylinder can leak into the crankcase when the engine runs, blow-by gas is generated, and the blow-by gas contains a small amount of oil mist components. Blow-by gases can cause the crankcase pressure to be too high to break the crankcase seal. To prevent excessive pressure in the crankcase, crankcase ventilation must be performed. In order to prevent oil mist in crankcase ventilation from directly entering an engine air inlet system or being directly discharged into the atmosphere, engine oil is free of end loss and influence on the atmosphere environment, an oil-gas separation device is added in the crankcase ventilation system, so that the running economy of the engine can be effectively improved, and the pollutant content in exhaust emission can be effectively reduced.
When the centrifugal blades of the existing rotary centrifugal oil-gas separator rotate at a high speed, high-decibel pneumatic noise can be generated, and the integral noise decibel value of the engine is increased. The low-noise rotary capturing adsorption type oil-gas separator provided by the invention overcomes the defects of the traditional rotary centrifugal type oil-gas separator, improves the oil-gas separation efficiency, and simultaneously can effectively reduce the pneumatic noise decibel value.
Disclosure of Invention
The invention aims to solve the technical problem of providing the low-noise rotary capturing adsorption type oil-gas separator, which overcomes the defects of the existing rotary centrifugal type oil-gas separator, and can effectively reduce the decibel value of pneumatic noise while improving the oil-gas separation efficiency.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
the low-noise rotary capturing adsorption type oil-gas separator comprises a shell, wherein an air inlet pipe and an air outlet pipe are arranged on the shell, a driven shaft is arranged at one end of the shell, the driven shaft extends out of the shell through a sealing bearing, and a rotary disc is arranged at the other end of the driven shaft; the shell is internally provided with a central rotating shaft, one end of the central rotating shaft is provided with axial flow fan blades which are connected with the connecting pipe, and the other end of the central rotating shaft is provided with a tray which is connected with the inner ring of the sealing bearing;
one surface of the tray is opposite to one end of the connecting pipe, a filter cage is fixed between the connecting pipe and the tray, and a rotary filter screen is arranged in the filter cage at the joint of the filter cage and the connecting pipe;
a plurality of spiral oil sweeping blades are uniformly arranged along the central rotating shaft and the outer edges of the spiral oil sweeping blades are attached to the inner surface of the filter cage;
one surface of the turntable is opposite to the other end of the connecting pipe, a plurality of groups of centrifugal oil sweeping blades are vertically arranged between the connecting pipe and the turntable, and a silencing filter screen is sleeved on the outer diameter edges of the plurality of groups of centrifugal oil sweeping blades between the connecting pipe and the turntable;
an axial flow fan blade is arranged on the central rotating shaft positioned at the connecting pipe, and the outer diameter of the axial flow fan blade is fixedly connected with the inner diameter of the connecting pipe.
The invention is further improved as follows: the filter cage and the rotary filter screen are respectively composed of a plurality of layers of cylindrical and a plurality of layers of wafer-shaped metal nets.
The invention is further improved as follows: ventilation micropores are distributed on the spiral oil sweeping blades and the centrifugal oil sweeping blades.
The invention is further improved as follows: the silencing filter screen consists of a plurality of layers of circular cylindrical metal nets.
The invention is further improved as follows: the inner surface of the silencing filter screen is attached to the outer diameter edges of the centrifugal oil sweeping fan blades.
The invention is further improved as follows: a sealing bearing is arranged between the connecting pipe and the shell.
The invention is further improved as follows: the inner bottom of the shell at the right side of the connecting pipe is slightly higher than the inner bottom of the shell at the left side of the connecting pipe, oil guiding grooves are respectively arranged on the inner bottoms of the shell at the left side and the right side of the connecting pipe and the inner wall of the air inlet pipe, an oil return hole is further formed in the shell near the lower side of the connecting pipe, one end of the oil return hole is communicated with the oil guiding groove at the bottom of the shell at the left side of the connecting pipe, the other end of the oil return hole is communicated with the oil guiding groove on the inner wall of the air inlet pipe, and the oil guiding groove at the inner bottom of the shell at the right side of the connecting pipe is communicated with the oil guiding groove on the inner wall of the air inlet pipe.
The beneficial effects of the invention are as follows: according to the invention, through the filter cage, the spiral oil sweeping blade, the centrifugal oil sweeping blade and the silencing filter screen, oil mist in the shell is actively captured, so that the oil mist is adsorbed on the filter cage, the spiral oil sweeping blade, the centrifugal oil sweeping blade and the silencing filter screen, and the oil is thrown to the inner wall of the shell along with high-speed centrifugal rotation of each component; meanwhile, the invention can reduce the pneumatic noise generated by the centrifugal blade during high-speed rotation through the silencing filter screen, thereby achieving the effect of reducing the noise.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a cross-sectional structure in the direction A-A in FIG. 1;
FIG. 3 is a schematic view showing a sectional structure in the B-B direction in FIG. 1.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, innovative features, achieving the objects and efficacy of the invention easy to understand.
As shown in fig. 1-3, a low-noise rotary capturing adsorption type oil-gas separator comprises a shell 15, wherein an air inlet pipe 13 and an air outlet pipe 17 are arranged on the shell 15, one end of the shell 15 is provided with a driven shaft 9, the driven shaft 9 extends out of the shell 15 through a sealing bearing 8a, and the other end of the driven shaft 9 is provided with a rotary disc 7; a central rotating shaft 16 is arranged in the shell 15, one end of the central rotating shaft 16 is provided with an axial flow fan blade 3 which is connected with the connecting pipe 11, and the other end is provided with a tray 14 which is connected with the inner ring of the sealing bearing 8 b;
a sealing bearing 8c is arranged between the connecting pipe 11 and the shell 15;
one surface of the tray 14 is opposite to one end of the connecting pipe 11, a filter cage 6 is fixed between the connecting pipe 11 and the tray 14, and a rotary filter screen 4 is arranged in the filter cage 6 at the joint of the connecting pipe 11; a plurality of spiral oil sweeping blades 5 are uniformly arranged along the central rotating shaft 16 on the central rotating shaft 16 in the filter cage 6, and the outer edges of the spiral oil sweeping blades 5 are attached to the inner surface of the filter cage 6;
one surface of the rotary table 7 is opposite to the other end of the connecting pipe 11, a plurality of groups of centrifugal oil sweeping blades 2 are vertically arranged between the connecting pipe 11 and the rotary table 7, and a silencing filter screen 1 is sleeved on the outer diameter edges of the plurality of groups of centrifugal oil sweeping blades 2 between the connecting pipe 11 and the rotary table 7; an axial flow fan blade 3 is also arranged on the central rotating shaft 16 at the connecting pipe 11, and the outer diameter edge of the axial flow fan blade 3 is fixedly connected with the inner diameter of the connecting pipe 11.
The filter cage 6 and the rotary filter screen 4 are respectively composed of a plurality of layers of cylindrical and a plurality of layers of wafer-shaped metal nets. The silencing filter screen 1 is composed of a plurality of layers of circular cylindrical metal nets.
The spiral oil sweeping blades 5 and the centrifugal oil sweeping blades 2 are fully distributed with ventilation micropores (not shown in the figure). The inner surface of the silencing filter screen 1 is attached to the outer diameter edges of a plurality of groups of centrifugal oil sweeping blades 2.
The inner bottom level of the shell 15 positioned at the right side of the connecting pipe 11 is slightly higher than the inner bottom level of the shell 15 positioned at the left side of the connecting pipe 11, oil guiding grooves (10 a, 10b and 10 c) are respectively arranged at the inner bottoms of the shell 15 positioned at the left side and the right side of the connecting pipe 11 and the inner wall of the air inlet pipe 13, an oil return hole 12 is also arranged in the shell 15 which is close to the lower side of the connecting pipe 11, one end of the oil return hole 12 is communicated with the oil guiding groove 10a positioned at the bottom of the shell 15 positioned at the left side of the connecting pipe 11, the other end of the oil return hole 12 is communicated with the oil guiding groove 10c positioned on the inner wall of the air inlet pipe 13, and the oil guiding groove 10b positioned at the bottom of the shell 15 positioned at the right side of the connecting pipe 11 is communicated with the oil guiding groove 10c positioned on the inner wall of the air inlet pipe 13.
When the fuel engine works, the power mechanism drives the driven shaft 9 to rotate and synchronously drives the silencing filter screen 1, the centrifugal oil sweeping blade 2, the axial flow fan blade 3, the rotary filter screen 4, the spiral oil sweeping blade 5 and the filter cage 6 to rotate along with the rotation; the mixed waste gas in the crankcase of the engine is subjected to centrifugal air suction through a centrifugal oil sweeping blade 2, an axial flow fan blade 3 and a spiral oil sweeping blade 5 to rotate and blow, the waste gas enters through an air inlet pipe 13, part of fine oil particles are filtered and adsorbed through a high-speed rotating filter cage 6, and the fine oil particles are separated to the inner surface of a shell 15 through centrifugal action, so that the first oil-gas separation is completed;
after the first oil-gas separation, the mixed waste gas entering the filter cage 6 is subjected to oil sweeping, catching and separation by the spiral oil sweeping blades 5 and filtering, absorbing and separating by the rotary filter screen 4, and the separated oil particles are thrown to the inner surface of the shell 15 under the action of the rotary centrifugal force, so that the second oil-gas separation is completed;
and the waste gas after the second oil-gas separation is subjected to centrifugation and oil sweeping catching separation by a centrifugal oil sweeping blade 2 rotating at high speed, and the noise reduction filter screen 1 is used for filtering, adsorbing and separating, and the separated oil particles are thrown to the inner surface of the shell 15 under the action of the rotating centrifugal force, so that the third oil-gas separation is completed.
The gas after three times of oil-gas separation enters an engine air inlet system through an air outlet pipe 17. The separated oil is gathered to oil guide grooves (10 a, 10 b), and flows into an oil guide groove 10c in an air inlet pipe 13, and finally flows back to a crankcase of the fuel engine.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a rotatory absorption formula oil and gas separator of catching of low noise, it includes casing (15), casing (15) on be equipped with intake pipe (13) and outlet duct (17), its characterized in that:
one end of the shell (15) is provided with a driven shaft (9), the driven shaft (9) extends out of the shell (15) through a sealing bearing (8 a), and the other end of the driven shaft (9) is provided with a rotary disc (7); a central rotating shaft (16) is arranged in the shell (15), one end of the central rotating shaft (16) is provided with axial flow fan blades (3) which are connected with the connecting pipe (11), and the other end is provided with a tray (14) which is connected with the inner ring of the sealing bearing (8 b);
one surface of the tray (14) is opposite to one end of the connecting pipe (11), a filter cage (6) is fixed between the connecting pipe (11) and the tray (14), and a rotary filter screen (4) is arranged in the filter cage (6) at the joint of the connecting pipe (11);
a plurality of spiral oil sweeping blades (5) are uniformly arranged on a central rotating shaft (16) positioned in the filter cage (6) along the central rotating shaft (16), and the outer edges of the spiral oil sweeping blades (5) are attached to the inner surface of the filter cage (6);
one surface of the rotary table (7) is opposite to the other end of the connecting pipe (11), a plurality of groups of centrifugal oil sweeping blades (2) are vertically arranged between the connecting pipe (11) and the rotary table (7), and a silencing filter screen (1) is sleeved on the plurality of groups of centrifugal oil sweeping blades (2) between the connecting pipe (11) and the rotary table (7);
an axial flow fan blade (3) is also arranged on a central rotating shaft (16) positioned at the connecting pipe (11), and the outer diameter edge of the axial flow fan blade (3) is fixedly connected with the inner diameter of the connecting pipe (11).
2. The low-noise rotary capture adsorption type oil-gas separator according to claim 1, wherein: the filter cage (6) and the rotary filter screen (4) are respectively composed of a plurality of layers of cylindrical and a plurality of layers of wafer-shaped metal nets.
3. The low-noise rotary capture adsorption type oil-gas separator according to claim 1, wherein: ventilation micropores are distributed on the spiral oil sweeping blades (5) and the centrifugal oil sweeping blades (2).
4. The low-noise rotary capture adsorption type oil-gas separator according to claim 1, wherein: the silencing filter screen (1) is composed of a plurality of layers of circular cylindrical metal nets.
5. The low-noise rotary capture adsorption type oil-gas separator according to claim 1, wherein: the inner surface of the silencing filter screen (1) is attached to the outer diameter edges of the plurality of groups of centrifugal oil sweeping blades (2).
6. The low-noise rotary capture adsorption type oil-gas separator according to claim 1, wherein: a sealing bearing (8 c) is arranged between the connecting pipe (11) and the shell (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377116.0A CN107023347B (en) | 2017-05-25 | Low-noise rotary capturing adsorption type oil-gas separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377116.0A CN107023347B (en) | 2017-05-25 | Low-noise rotary capturing adsorption type oil-gas separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107023347A CN107023347A (en) | 2017-08-08 |
| CN107023347B true CN107023347B (en) | 2023-04-28 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840270A (en) * | 2016-05-04 | 2016-08-10 | 合肥恒信汽车发动机部件制造有限公司 | Active type multi-stage oil-gas separator |
| CN206830261U (en) * | 2017-05-25 | 2018-01-02 | 合肥恒信汽车发动机部件制造有限公司 | A kind of low noise rotation catches absorption type gs-oil separator |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840270A (en) * | 2016-05-04 | 2016-08-10 | 合肥恒信汽车发动机部件制造有限公司 | Active type multi-stage oil-gas separator |
| CN206830261U (en) * | 2017-05-25 | 2018-01-02 | 合肥恒信汽车发动机部件制造有限公司 | A kind of low noise rotation catches absorption type gs-oil separator |
Non-Patent Citations (1)
| Title |
|---|
| 陈然 ; 崔光超 ; 郭洪山 ; 金喆;王克;王骏 ; .BFM2012型柴油机曲轴箱通风系统油气分离器改进.汽车技术.2013,(第06期),24-28. * |
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Address after: 230000 southwest Hengxin automobile office at the intersection of yingjiangsi road and Yulan Avenue, Taohua Industrial Park, Feixi County, Hefei City, Anhui Province Applicant after: Hefei Hengxin Power Technology Co.,Ltd. Address before: No.316 Jinxiu Avenue, economic development zone, Hefei City, Anhui Province Applicant before: HEFEI HENGXIN AUTOMOTIVE ENGINE COMPONENT MANUFACTURING Co.,Ltd. |
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