CN114458419B - Oil-gas separator with spiral linear inlet flow channel - Google Patents
Oil-gas separator with spiral linear inlet flow channel Download PDFInfo
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- CN114458419B CN114458419B CN202210113145.7A CN202210113145A CN114458419B CN 114458419 B CN114458419 B CN 114458419B CN 202210113145 A CN202210113145 A CN 202210113145A CN 114458419 B CN114458419 B CN 114458419B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0422—Separating oil and gas with a centrifuge device
- F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cyclones (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an oil-gas separator with a spiral linear inlet flow passage, which comprises a separation cavity cylinder body, an oil-gas mixture inlet section and an oil storage cavity, wherein the oil-gas mixture inlet section and the oil storage cavity are connected to the two ends of the separation cavity cylinder body; the invention introduces the Archimedes spiral line into the dynamic pressure type oil-gas separator of the lubricating oil system of the aeroengine, and the pre-rotation section above the oil-gas separator is arranged into the Archimedes spiral line type, thereby ensuring that the flow rate of the oil-gas mixture entering each branch is approximately the same, improving the stability of the flow field inside the separator, reducing the lubricating oil amount in the central reflux area of the separator, and improving the separation efficiency of the separator.
Description
Technical Field
The invention relates to the technical field of aeroengine lubricating oil systems, in particular to an oil-gas separator with a spiral linear inlet flow passage.
Background
Aeroengines contain various high-speed rotating components, wherein high-speed rotating friction components such as bearings, gears and the like bear huge loads. An aircraft engine oil system continuously supplies oil to these high speed rotating components to achieve lubrication and cooling of the friction contact areas, maintaining efficient, continuous operation of these components. The lubricating oil system of the aeroengine mainly comprises an oil tank, an oil supply pump, an oil filter, an oil return pump, a ventilator, an oil-gas separator, a radiator and the like. Because the lubricating oil system contains a certain amount of air, in the normal working process of the aeroengine, lubricating oil in the system can be continuously mixed with the air to form an oil-gas mixture, air bubbles in the oil-gas mixture can increase the resistance of a pipeline, reduce the specific heat and the heat conduction coefficient of the lubricating oil, not only can reduce the heat dissipation performance of the lubricating oil, but also can weaken the lubricating and cooling capacity of the lubricating oil on friction dual surfaces, and meanwhile, the oil-gas mixture continuously enters the oil tank to ensure that the internal pressure of the oil tank is increased, so that the oil return process is not facilitated, and the oil-gas mixture enters the oil supply pump to reduce the supply quantity of the lubricating oil and influence the normal working of the aeroengine. Therefore, the oil-gas separator between the oil return pump and the oil tank is an indispensable device for separating air in the oil-gas mixture in the oil return flow path, ensuring the working safety of the bearings and the gears and ensuring the normal operation of the system.
The dynamic pressure type oil-gas separator is an important component of an aircraft engine lubricating oil system, is a device for separating an oil-gas mixture by utilizing centrifugal force, and has the advantages of simple structure, compact space and the like. The oil-gas mixture can firstly enter the separator from the mixture inlet at a certain initial speed, a larger circumferential speed is generated through the pre-spinning section, the lubricating oil and the air flow downwards under the action of gravity, meanwhile, the lubricating oil moves against the outer wall surface under the action of centrifugal force due to a larger density difference of the lubricating oil and the air, and enters the liquid storage cavity and the separation section, finally returns to the inside of the oil tank through the lubricating oil outlet, and the separated air is discharged through the air outlet. Because the space inside the aero-engine is very limited, the straight barrel and tangential inlet structure of the dynamic pressure type oil-gas separator in the general form is easy to cause some problems in actual use:
1. the oil-gas separation efficiency is low;
2. under the working condition of high oil-gas ratio, the oil return pump is not used for sucking the lubricating oil, so that the lubricating oil in the separator is accumulated too much, and the lubricating oil is lost.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the oil-gas separator with the spiral inlet flow passage, which solves the problems of lower separation efficiency and larger lubricating oil loss of the dynamic pressure type oil-gas separator in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: an oil-gas separator with spiral inlet flow passage comprises a separating cavity cylinder, an oil-gas mixture inlet section and an oil storage cavity which are connected with two ends of the separating cavity cylinder, an exhaust pipe which is communicated with the separating cavity cylinder, an oil-gas mixture inlet section which is communicated with the separating cavity cylinder and the oil storage cavity,
the oil-gas mixture inlet section comprises a pre-spinning flow passage and an inlet flow passage communicated with the pre-spinning flow passage, the pre-spinning flow passage is generally cylindrical, the inlet flow passage is arranged along the tangential direction, and the outer side wall of the pre-spinning flow passage is of an Archimedes spiral line type;
the oil-gas mixture inlet section is internally provided with a flow dividing device which is cylindrical, the flow dividing device is provided with a flow dividing cavity along the axis direction of the flow dividing device, and the flow dividing cavity is communicated with the separation cavity cylinder;
the inside of the flow dividing device is also provided with a branch passage, the branch passage is communicated with the pre-rotation flow passage and the flow dividing cavity, and the oil-gas mixture enters the pre-rotation flow passage through the inlet flow passage, then enters the flow dividing cavity through the branch passage and then enters the separation cavity cylinder body.
The invention also has the following technical characteristics:
the inlet of the inlet runner is rectangular, and the inlet runner is rectangular contracted.
The tributary channels are distributed at equal angles along the circumferential direction of the separation cavity cylinder body, and the outlets of the tributary channels are tangential to the separation cavity cylinder body.
The number of the branch passages is eight.
The cross section of the pre-spinning flow channel is rectangular.
The cross section of the oil storage cavity is in an inverted trapezoid shape, the diameter of the oil storage cavity is larger than that of the separation cavity cylinder body, and the oil storage cavity is connected with an oil outlet pipe.
The bottom of the oil storage cavity is provided with a cylindrical boss.
The exhaust pipe, the separation cavity cylinder body and the oil storage cavity are coaxially connected, the exhaust pipe stretches into the separation cavity cylinder body, and the separation cavity cylinder body stretches into the oil storage cavity.
And an oil retainer ring is arranged in the exhaust pipe.
Compared with the prior art, the invention has the following technical effects:
according to the invention, the Archimedes spiral line is introduced into the dynamic pressure type oil-gas separator of the lubricating oil system of the aeroengine, and the pre-rotation section above the oil-gas separator is arranged into the Archimedes spiral line type, so that the flow rate of the oil-gas mixture entering each branch is ensured to be approximately the same, the stability of the flow field inside the separator is improved, the lubricating oil amount of the central backflow area of the separator is reduced, and the separation efficiency of the separator is improved;
and meanwhile, the annular oil storage cavity structure is arranged at the bottom of the separator, so that part of oil can be stored in the separator when the oil quantity is excessive, and the oil retainer ring is arranged in the exhaust pipe at the top of the separator, so that the quantity of oil drops discharged to the atmosphere along with air from the exhaust pipe at the top is reduced, the loss of the oil under special working conditions is reduced, and the integral working performance and the working life of the aeroengine are ensured.
The invention has simple structure and convenient use, and can greatly save manpower and material resources.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of a separator pre-rotation section J-J;
FIG. 4 is a schematic view of the K-K cross section of the present invention.
Fig. 5 is a schematic cross-sectional view of a rectangular inlet convergent channel.
FIG. 6 is a pressure cloud of a J-J section under certain conditions.
FIG. 7 is a cloud chart of the distribution of lubricating oil under a certain working condition of K-K section.
Fig. 8 is a graph showing separation efficiency of a conventional oil separator and a novel oil separator.
Meaning of the individual reference numerals in the drawings:
1-separating a cavity cylinder; 2-oil-gas mixture inlet section: 3-an oil storage cavity; 4-exhaust pipe; 5-a shunt device;
2-1 pre-swirl flow channel, 2-2 inlet flow channel;
3-1 oil outlet pipes and 3-2 cylindrical bosses;
4-1 oil slinger;
5-1 branch flow cavity and 5-2 branch flow channels.
The following examples illustrate the invention in further detail.
Detailed Description
The following specific embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solutions of the present application fall within the protection scope of the present invention.
The terms "upper," "lower," "front," "rear," "top," "bottom," and the like are used herein to refer to an orientation or positional relationship for ease of description and simplicity of description only, and are not intended to indicate or imply that the devices or elements being referred to must be oriented, configured and operated in a particular orientation, with "inner," "outer" referring to the inner and outer sides of the corresponding component profiles, and the above terms are not to be construed as limiting the invention.
In the present invention, unless otherwise indicated, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
All parts of the invention, unless otherwise specified, are known in the art.
Example 1:
according to the technical proposal, as shown in figures 1 to 8, the oil-gas separator with a spiral inlet runner comprises a separation cavity cylinder body 1, an oil-gas mixture inlet section 2 and an oil storage cavity 3 which are connected with two ends of the separation cavity cylinder body 1, wherein the oil-gas mixture inlet section 2 is also connected with an exhaust pipe 4, the exhaust pipe 4 is communicated with the separation cavity cylinder body 1, the oil-gas mixture inlet section 3 is communicated with the separation cavity cylinder body 1 and the oil storage cavity 3,
the oil-gas mixture inlet section 2 comprises a pre-spinning runner 2-1 and an inlet runner 2-2 communicated with the pre-spinning runner 2-1, wherein the pre-spinning runner 2-1 is generally cylindrical, the inlet runner 2-2 is arranged along the tangential direction, and the outer side wall of the pre-spinning runner 2-1 is of an Archimedes spiral type; by arranging the spiral line type inlet flow passage and arranging eight branches at the same angle at intervals, the radius of the spiral line is reduced by the same size when the spiral line passes through the same angle, when the oil-gas mixture flows through the spiral line type main flow passage, the flow of the oil-gas mixture entering the separation cavity cylinder body from the eight branches is approximately the same when the oil-gas mixture passes through the same angle, and the oil-gas mixture entering the separation cavity cylinder body from the eight branches is distributed in a central symmetry manner, so that a central backflow area in the separation cavity is more stable, and researches show that the more stable central backflow area is favorable for improving the separation efficiency of the oil-gas separator.
The oil-gas mixture enters the spiral linear inlet flow passage through the mixture inlet, when the main flow flows through the same radius, the oil-gas mixture with approximately the same flow rate is extruded into eight branches, the oil-gas mixture enters the separation cavity in a direction tangential to the cylinder body of the separation cavity, the oil-gas mixture forms a rotational flow in the separation cavity, the oil with higher density is left along the wall surface, the air with lower density flows upwards into the exhaust pipe from the central backflow area, the separated air is communicated with the atmosphere, the separated oil enters the liquid storage cavity, and returns to the oil tank through the outlet pipeline, so that the separation of the oil is completed.
A flow dividing device 5 is arranged in the oil-gas mixture inlet section 2, the flow dividing device 5 is cylindrical, a flow dividing cavity 5-1 is formed in the flow dividing device 5 along the axis direction of the flow dividing device, and the flow dividing cavity 5-1 is communicated with the separation cavity cylinder body 1;
the inside of the flow dividing device 5 is also provided with a branch passage 5-2, the branch passage 5-2 is communicated with the pre-rotation flow passage 2-1 and the flow dividing cavity 5-1, and the oil-gas mixture enters the pre-rotation flow passage 2-1 through the inlet flow passage 2-2, then enters the flow dividing cavity 5-1 through the branch passage 5-2 and then enters the separation cavity cylinder body 1.
As one preferable example of the present embodiment:
the inlet of the inlet runner 2-2 is rectangular, and the inlet runner 2-2 is rectangular contracted. So that the inlet oil-gas mixture obtains a larger initial velocity.
As one preferable example of the present embodiment:
the tributary channels 5-2 are circumferentially distributed at equal angles along the separation cavity cylinder 1, and the outlets of the tributary channels 5-2 are tangential to the separation cavity cylinder 1. The inlets of the eight branches are distributed at the same angle at the same circumferential interval, so that the mixture pressure at the inlets of the eight branches is ensured to be the same, the flow rate of the oil-gas mixture entering the eight branches is approximately the same, the stability of the flow field of the separation section of the separator is ensured, and the oil-gas separation efficiency of the separator is effectively improved.
As one preferable example of the present embodiment:
the number of the branch passages 5-2 is eight.
As one preferable example of the present embodiment:
the cross section of the pre-rotation flow channel 2-1 is rectangular. Ensuring that the height of the pre-rotation section of the separator remains unchanged.
As one preferable example of the present embodiment:
the section of the oil storage cavity 3 is in an inverted trapezoid shape, the diameter of the oil storage cavity 3 is larger than that of the separation cavity cylinder body 1, and the oil storage cavity 3 is connected with an oil outlet pipe 3-1. The volume of the oil-gas separator is increased, so that under the condition of excessive lubricating oil, the separator can temporarily store some lubricating oil to reduce the loss of the lubricating oil, and through the arrangement of the structure, the lubricating oil with higher purity after separation can be temporarily stored under the condition that an oil return pump does not return oil, and the excessive loss of the lubricating oil is avoided. The oil outlet pipe 3-1 is directly connected to the side surface of the oil storage cavity, so that the oil pumped by the oil return pipe is guaranteed to be high-purity oil which is subjected to oil-gas separation.
As one preferable example of the present embodiment:
the bottom of the oil storage cavity 3 is provided with a cylindrical boss 3-2. So that the lubricating oil at the bottom of the separator does not accumulate excessively and the inside of the separator, but directly enters the oil storage cavity.
As one preferable example of the present embodiment:
the exhaust pipe 4, the separation cavity cylinder body 1 and the oil storage cavity 3 are coaxially connected, the exhaust pipe 4 stretches into the separation cavity cylinder body 1, and the separation cavity cylinder body 1 stretches into the oil storage cavity 3.
As one preferable example of the present embodiment:
the oil retainer 4-1 is installed in the exhaust pipe 4. The slinger 4-1 reduces the loss of oil from being discharged to the atmosphere through the exhaust pipe.
The rectangular contracted mixture inlet runner 2-2 ensures that the oil-gas mixture can have a larger initial speed after entering the oil-gas separator;
the pre-swirl flow passage 2-1 is tangentially connected with the inlet flow passage 2-2, and the spiral line is designed to reduce the radius of the main flow oil-gas mixture to be the same when the main flow oil-gas mixture flows through the same angle, so that the flow rate of the oil-gas mixture entering each branch is approximately the same;
eight branch flow channels 5-2 which are arranged at the center of the pre-swirl flow channel and divide the main flow into 8 branches, so that the stability of a flow field during cyclone separation is ensured;
the separation cavity cylinder body 1 is tangentially connected with the outlets of the eight branches and is arranged at the lower part of the pre-swirl flow channel 2-1, and the oil-gas mixture carries out cyclone separation on the separation cavity cylinder body;
the oil storage cavity 3 is arranged below the separation cavity cylinder body 1 and can store a certain amount of lubricating oil;
the oil outlet pipe 3-1 is connected with the side surface of the oil storage cavity 3 and is used for pumping the lubricating oil out of the oil-gas separator and returning the lubricating oil into the oil tank;
the cylindrical boss 3-2 is arranged at the center of the bottom of the separator and can enable the lubricating oil subjected to oil-gas separation to enter the oil storage cavity 5;
an exhaust pipe 4 for exhausting the air having been subjected to the oil-gas separation inside the separator to the atmosphere;
the oil slinger 4-1 is provided on the inner wall of the exhaust pipe 4, and can reduce the amount of oil droplets discharged from the exhaust pipe 4 to the atmosphere.
In order to solve the above problems, as shown in fig. 1, in the invention, in order to improve the separation efficiency of the oil-gas separator, an archimedes spiral line is introduced into the oil-gas separator, an inlet runner 2-2 of the oil-gas mixture is designed to be a rectangular contracted inlet, the design ensures that the inlet oil-gas mixture can obtain a larger initial speed in a pre-spinning section, the pre-spinning runner 2-1 is designed to be an archimedes spiral line type, the design mainly aims at that the flow rate of the oil-gas mixture entering each branch passage 5-2 is approximately the same when the oil-gas mixture flows through the same angle in the pre-spinning section, and simultaneously, the pressure at the inlet position of each branch passage 5-2 is also ensured to be approximately the same, as shown in fig. 6. The flow entering the separation cavity cylinder body 1 tangentially from the outlets of the branches is approximately the same, the stability of rotational flow in the separation cavity cylinder body 1 is guaranteed, the amount of lubricating oil in the central backflow area of the separation cavity cylinder body 1 is reduced, and the separation efficiency of the separator is improved, as shown in fig. 8. The oil-gas mixture flows through the pre-spinning flow passage 2-1 to obtain circumferential speed, and the generated centrifugal force enables the lubricating oil with larger density difference to be separated from the air, so that the oil-gas separation is completed by using a centrifugal dynamic pressure type oil-gas separation method. The oil which is separated from oil and gas in the separation cavity cylinder body 1 enters the annular oil storage cavity 5, and is sucked out of the oil-gas separator through the oil outlet pipe 3-1 to finish oil return; the separated air is discharged along the exhaust pipe 4 at the top end, and oil-gas separation is completed.
As shown in fig. 2, 3 and 4, the pre-swirl flow channel 2-1 is designed to be an archimedes spiral line type, so that the rotation radius is linearly reduced every time the mixture turns through a unit angle, that is, the flow rate of the oil-gas mixture flowing into each branch flow channel 5-2 is approximately the same, the circumferential uniformity of the oil-gas mixture entering the separation cavity cylinder 1 is ensured by the uniform circumferential distribution of the eight branch flow channels 5-2, and simultaneously, the oil-gas mixture can obtain larger circumferential velocity in the separation cavity cylinder 1 under smaller pressure loss, so that the flow field of the oil-gas mixture in the separation cavity cylinder 1 is more uniform and stable, and meanwhile, a more stable central backflow area is also obtained in the separation cavity cylinder 1, and the separation efficiency of the oil-gas separator is effectively improved. The oil storage cavity 3 arranged at the bottom of the oil-gas separator can store excessive oil therein under the condition of large oil flow, and the oil retainer 4-1 arranged in the exhaust pipe 4 can also effectively reduce the amount of oil drops escaping from the oil-gas separator along with air from the exhaust pipe 4, so that excessive loss of the oil caused by too large oil quantity escaping from the exhaust pipe 4 is avoided, and the cylindrical boss 3-2 arranged in the center of the oil-gas separator has the function of enabling the oil to enter the oil storage cavity 3.
FIG. 5 is a schematic cross-sectional view of an inlet rectangular constricted flow passage, which can ensure a large initial velocity when the oil-gas mixture flows into a spiral pre-swirl flow passage, ensure a large circumferential velocity when the oil-gas mixture is subjected to swirling dynamic pressure separation, and ensure the separation efficiency of a separator.
The circulation flow of the lubricating oil in the lubricating oil system of the certain real aeroengine is about 50L/min, the simulation working condition is designed to be that the lubricating oil flow is 50L/min, and the oil-gas ratio of the inlet oil-gas mixture is 5 for simulation calculation.
FIG. 6 is a pressure cloud chart of the spiral pre-swirl flow channel under the working condition, and the calculation result shows that the pressure of the oil-gas mixture is reduced when the oil-gas mixture enters the spiral pre-swirl flow channel from the inlet of the contraction section, the initial speed of the oil-gas mixture when the oil-gas mixture enters the spiral pre-swirl flow channel is increased, the pressure of the oil-gas mixture when the oil-gas mixture flows through the spiral pre-swirl flow channel is approximately unchanged, the pressure of the oil-gas mixture at the eight inlet positions is locally increased, the pressure at the inlet positions of the eight inlet positions is still ensured to be in the same range, namely, the pressure and the flow rate of the inlets of the eight branches are approximately the same, the effectiveness of the spiral pre-swirl flow channel is verified, and the stability of a flow field of a separation section is ensured.
FIG. 7 is a cloud of oil phase volume distribution for a section K-K of the separator under this condition, where red represents oil, blue represents air, and other colors represent oil and gas mixtures, where closer to red the color the greater the volume fraction of oil. FIG. 7 illustrates that the novel invention can swirl as intended and accomplish the separation of oil and gas; the oil storage structure at the bottom can also enable more lubricating oil to be stored in the oil-gas separator, and high-purity lubricating oil is directly returned to the oil tank through the oil outlet pipe.
Fig. 8 shows a comparison diagram of separation efficiency of a traditional dynamic pressure type oil-gas separator and a novel oil-gas separator under the same oil-gas ratio working condition, wherein a red curve in the diagram shows the separation efficiency of the novel oil-gas separator under the same oil-gas ratio from 0.5 to 2.0, and a black curve shows the separation efficiency of the traditional dynamic pressure type oil-gas separator under the same working condition, so that the separation efficiency of the novel oil-gas separator is greatly improved as shown in fig. 8.
While the invention has been described with respect to the preferred embodiments, it is to be understood that the invention is not limited thereto, but is intended to cover modifications and alternatives falling within the spirit and scope of the present invention as disclosed by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (6)
1. The oil-gas separator with the spiral linear inlet flow passage comprises a separation cavity cylinder body (1), and an oil-gas mixture inlet section (2) and an oil storage cavity (3) which are connected to two ends of the separation cavity cylinder body (1), wherein an exhaust pipe (4) is further connected to the oil-gas mixture inlet section (2), the exhaust pipe (4) is communicated with the separation cavity cylinder body (1), and the oil-gas mixture inlet section (3) is communicated with the separation cavity cylinder body (1) and the oil storage cavity (3);
it is characterized in that the method comprises the steps of,
the oil-gas mixture inlet section (2) comprises a pre-spinning runner (2-1) and an inlet runner (2-2) communicated with the pre-spinning runner (2-1), the pre-spinning runner (2-1) is generally cylindrical, the inlet runner (2-2) is arranged along the tangential direction, and the outer side wall of the pre-spinning runner (2-1) is of an Archimedes spiral line type;
a flow dividing device (5) is arranged in the oil-gas mixture inlet section (2), the flow dividing device (5) is cylindrical, a flow dividing cavity (5-1) is formed in the flow dividing device (5) along the axis direction of the flow dividing device, and the flow dividing cavity (5-1) is communicated with the separation cavity cylinder body (1);
the inside of the flow dividing device (5) is also provided with a branch passage (5-2), the branch passage (5-2) is communicated with the pre-rotation flow passage (2-1) and the flow dividing cavity (5-1), and after the oil-gas mixture enters the pre-rotation flow passage (2-1) through the inlet flow passage (2-2), the oil-gas mixture enters the flow dividing cavity (5-1) through the branch passage (5-2) and then enters the separation cavity cylinder (1)
The inlet of the inlet runner (2-2) is rectangular, and the inlet runner (2-2) is rectangular contracted;
the tributary channels (5-2) are distributed at equal angles along the circumferential direction of the separation cavity cylinder (1), and the outlets of the tributary channels (5-2) are tangential to the separation cavity cylinder (1);
the inside of the exhaust pipe (4) is provided with a oil retainer (4-1).
2. An oil-gas separator with spiral inlet flow passage according to claim 1, characterized in that the number of the branch passages (5-2) is eight.
3. An oil and gas separator with a spiral inlet flow channel as claimed in claim 1, characterized in that the pre-swirl flow channel (2-1) has a rectangular cross section.
4. The oil-gas separator with the spiral linear inlet flow passage according to claim 1, wherein the section of the oil storage cavity (3) is in an inverted trapezoid shape, the diameter of the oil storage cavity (3) is larger than that of the separation cavity cylinder (1), and the oil outlet pipe (3-1) is connected to the oil storage cavity (3).
5. An oil-gas separator with spiral inlet flow channel as claimed in claim 1, characterized in that the bottom of the oil storage chamber (3) is provided with a cylindrical boss (3-2).
6. The oil-gas separator with the spiral linear inlet flow passage according to claim 1, wherein the exhaust pipe (4), the separation cavity cylinder (1) and the oil storage cavity (3) are coaxially connected, the exhaust pipe (4) stretches into the separation cavity cylinder (1), and the separation cavity cylinder (1) stretches into the oil storage cavity (3).
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| CN202210113145.7A CN114458419B (en) | 2022-01-30 | 2022-01-30 | Oil-gas separator with spiral linear inlet flow channel |
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| CN202210113145.7A CN114458419B (en) | 2022-01-30 | 2022-01-30 | Oil-gas separator with spiral linear inlet flow channel |
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| CN114458419B true CN114458419B (en) | 2023-05-02 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3439810A (en) * | 1967-09-26 | 1969-04-22 | Ajem Lab Inc | Centrifugal separator |
| DE4137633A1 (en) * | 1991-11-15 | 1993-05-19 | Nied Roland | WINDSHIELD AND METHOD FOR OPERATING A WINDSHIELD |
| JP4402239B2 (en) * | 2000-02-16 | 2010-01-20 | 株式会社日清製粉グループ本社 | Cyclone dust collector |
| US6497114B1 (en) * | 2001-09-18 | 2002-12-24 | Visteon Global Technologies, Inc. | Oil separator |
| WO2010117259A1 (en) * | 2009-04-07 | 2010-10-14 | Twister B.V. | Separation system comprising a swirl valve |
| KR101465022B1 (en) * | 2014-05-12 | 2014-11-27 | 이상필 | Purification apparatus for compressed air |
| CN205297685U (en) * | 2016-01-12 | 2016-06-08 | 安徽全柴动力股份有限公司 | Whirlwind formula oil and gas separator |
| CN109974355A (en) * | 2019-04-16 | 2019-07-05 | 西北工业大学 | A kind of gas-liquid separator |
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Inventor after: Gai Zepeng Inventor after: Zhu Pengfei Inventor after: Zhang Lifen Inventor after: Wu Tong Inventor after: Hu Jianping Inventor after: Cao Yitao Inventor after: Liu Zhenxia Inventor after: Lv Yaguo Inventor after: Zhang Chaoyang Inventor after: Li Yanjun Inventor after: Liu Zhengang Inventor after: Gao Wenjun Inventor before: Hu Jianping Inventor before: Wu Tong Inventor before: Liu Zhenxia Inventor before: Lv Yaguo Inventor before: Zhang Chaoyang Inventor before: Li Yanjun Inventor before: Liu Zhengang Inventor before: Gao Wenjun Inventor before: Zhu Pengfei Inventor before: Zhang Lifen |
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