CN114458419A - Oil-gas separator with spiral inlet flow channel - Google Patents
Oil-gas separator with spiral inlet flow channel Download PDFInfo
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- CN114458419A CN114458419A CN202210113145.7A CN202210113145A CN114458419A CN 114458419 A CN114458419 A CN 114458419A CN 202210113145 A CN202210113145 A CN 202210113145A CN 114458419 A CN114458419 A CN 114458419A
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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 inlet flow passage, which comprises a separation cavity cylinder, 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 two ends of the separation cavity cylinder; the invention introduces the Archimedes spiral line into the dynamic pressure oil-gas separator of the aircraft engine lubricating oil system, sets the prerotation section above the oil-gas separator into the Archimedes spiral line type, ensures that the flow of the oil-gas mixture entering each branch is approximately the same, improves the stability of the internal flow field of the separator, reduces the lubricating oil amount of the central reflux area of the separator and improves the separation efficiency of the separator.
Description
Technical Field
The invention relates to the technical field of an aircraft engine lubricating oil system, in particular to an oil-gas separator with a spiral inlet flow channel.
Background
The aircraft engine contains various high-speed rotating components, and among them, high-speed rotating friction components such as bearings, gears and the like bear huge loads. The aircraft engine oil system continuously supplies oil to these high speed rotating components to effect lubrication and cooling of the frictional contact area, maintaining efficient, continuous operation of these components. The lubricating oil system of the aircraft engine 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, the 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, the specific heat and the heat conduction coefficient of the lubricating oil are reduced, the heat dissipation performance of the lubricating oil can be reduced, the lubricating and cooling capacity of the lubricating oil on a friction dual surface can be weakened, meanwhile, the oil-gas mixture continuously enters an oil tank, the internal pressure of the oil tank can be increased, the oil return process is not facilitated, the supply amount of the lubricating oil can be reduced when the oil-gas mixture enters an oil supply pump, and the normal working of the aeroengine is influenced. 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 of the oil return flow path, and the working safety of the bearing and the gear is ensured, so that the system can normally run.
The dynamic pressure type oil-gas separator is an important component of an aeroengine lubricating oil system, is a device for separating oil-gas mixture by using centrifugal force, and has the advantages of simple structure, compact space and the like. Inside oil-gas mixture can follow the mixture import at certain initial velocity entering separator at first, through prewhirl section production great circumferential speed, lubricating oil and air downward flow under the action of gravity, simultaneously because lubricating oil and air density differ great, the outer wall motion is hugged closely to the lubricating oil under the centrifugal force effect to enter stock solution chamber and separation section, get back to inside the oil tank through the lubricating oil export at last, the air after the separation is then discharged through the air outlet. Because the internal space of an aircraft engine is very limited, the straight cylinder and tangential inlet structure of the dynamic pressure oil-gas separator in the general form is easy to cause some problems in practical use:
1. the oil-gas separation efficiency is low;
2. under the condition of a high oil-gas ratio working condition, the oil return pump cannot pump the lubricating oil so that the lubricating oil in the separator is accumulated too much, and the loss of the lubricating oil is caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an oil-gas separator with a spiral linear inlet flow passage, and solve the problems that the dynamic pressure oil-gas separator in the prior art is low in separation efficiency and large in lubricating oil loss.
In order to solve the technical problems, the invention adopts the following technical scheme: an oil-gas separator with a spiral inlet flow passage comprises a separation cavity cylinder, 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 two ends of the separation cavity cylinder, the oil-gas mixture inlet section is also connected with an exhaust pipe, the exhaust pipe is communicated with the separation cavity cylinder, the oil-gas mixture inlet section is communicated with the separation cavity cylinder and the oil storage cavity,
the oil-gas mixture inlet section comprises a prewhirl flow passage and an inlet flow passage communicated with the prewhirl flow passage, the prewhirl flow passage is generally cylindrical, the inlet flow passage is arranged along the tangential direction, and the outer side wall of the prewhirl flow passage is of an Archimedes spiral line type;
a flow dividing device is arranged in the oil-gas mixture inlet section, the flow dividing device is cylindrical, a flow dividing cavity is formed in the flow dividing device along the axis direction of the flow dividing device, and the flow dividing cavity is communicated with the cylinder of the separation cavity;
the inside branch passageway that still is provided with of diverging device, branch passageway intercommunication is swirl the runner in advance and is shunted the chamber, after oil-gas mixture gets into the passageway of swirl in advance via the entry runner, gets into the separation chamber barrel behind the reposition of redundant personnel chamber via the branch passageway again.
The invention also has the following technical characteristics:
the inlet of the inlet flow channel is rectangular, and the inlet flow channel is in a rectangular contraction shape.
The branch passages are distributed at intervals along the circumferential direction of the separation cavity cylinder body at the same angle, and outlets of the branch passages are tangent to the separation cavity cylinder body.
Eight branch channels are provided.
The section of the pre-rotation flow channel is rectangular.
The cross-section of oil storage chamber be down trapezoidal and the diameter in oil storage chamber is greater than the diameter of separation chamber barrel, the oil storage chamber on be connected with out oil pipe.
The bottom of the oil storage cavity is provided with a cylindrical boss.
The exhaust pipe, the separation cavity barrel and the oil storage cavity are coaxially connected, the exhaust pipe extends into the separation cavity barrel, and the separation cavity barrel extends into the oil storage cavity.
And an oil slinger is arranged in the exhaust pipe.
Compared with the prior art, the invention has the following technical effects:
the invention (I) introduces the Archimedes spiral line into a dynamic pressure oil-gas separator of an aircraft engine lubricating oil system, and sets a prerotation section above the oil-gas separator into the Archimedes spiral line type, thereby ensuring that the flow rates of oil-gas mixtures entering each branch are approximately the same, improving the stability of an internal flow field of a separator, reducing the lubricating oil amount of a central reflux area of the separator and improving the separation efficiency of the separator;
and (II) the annular oil storage cavity structure is arranged at the bottom of the separator, so that part of lubricating oil can be stored in the separator when the amount of the lubricating oil is excessive, and the oil retainer is arranged in the exhaust pipe at the top of the separator, so that the amount of lubricating oil drops discharged to the atmosphere along with air from the exhaust pipeline at the top is reduced, the loss of the lubricating oil under special working conditions is reduced, and the integral working performance and the service life of the aero-engine are ensured.
The invention (III) has simple structure and convenient use, and can greatly save manpower and material resources.
Drawings
FIG. 1 is a schematic 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 section;
FIG. 4 is a schematic cross-sectional view of K-K according to the present invention.
FIG. 5 is a schematic cross-sectional view of a rectangular inlet converging flow passage.
FIG. 6 is a pressure cloud diagram of a J-J section under a certain working condition.
FIG. 7 is a cloud diagram of lubricating oil distribution under a certain working condition of a K-K section.
Fig. 8 is a graph showing separation efficiency curves of the conventional oil separator and the novel oil separator.
The various reference numbers in the drawings have the meanings given below:
1-separation chamber cylinder; 2-oil-gas mixture inlet section: 3-an oil storage cavity; 4-an exhaust pipe; 5-a flow dividing device;
2-1 pre-rotation flow channel, 2-2 inlet flow channel;
3-1 oil outlet pipe, 3-2 cylindrical boss;
4-1 oil slinger;
5-1 branch cavity and 5-2 branch channel.
The present invention will be explained in further detail with reference to examples.
Detailed Description
The following embodiments are given as examples of the present invention, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are included in the protection scope of the present invention.
As used herein, the terms "upper," "lower," "front," "back," "top," "bottom," and the like are used in an orientation or positional relationship that is indicated for convenience in describing the invention and to simplify the description, but does not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, "inner" and "outer" refer to the inner and outer of the contours of the corresponding parts and are not to be construed as limiting the invention.
In the present invention, the terms "mounted," "connected," "fixed," and the like are used broadly, and may be, for example, fixedly connected, detachably connected, or integrated without being described to the contrary; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
All components in the present invention, unless otherwise specified, are all those known in the art.
Example 1:
according to the technical scheme, as shown in figures 1 to 8, the oil-gas separator with the spiral inlet channel comprises a separation cavity cylinder 1, an oil-gas mixture inlet section 2 and an oil storage cavity 3 which are connected at two ends of the separation cavity cylinder 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 1, the oil-gas mixture inlet section 3 is communicated with the separation cavity cylinder 1 and the oil storage cavity 3,
the oil-gas mixture inlet section 2 comprises a pre-swirl flow channel 2-1 and an inlet flow channel 2-2 communicated with the pre-swirl flow channel 2-1, the pre-swirl flow channel 2-1 is generally cylindrical, the inlet flow channel 2-2 is arranged along the tangential direction, and the outer side wall of the pre-swirl flow channel 2-1 is of an Archimedes spiral line type; through setting up helix type inlet flow channel and be provided with eight branches at the same angle of its upper interval, the radius reduces the equidimension when the helix is every through the same angle, when oil-gas mixture flows through the helix type sprue, when every through the same angle, the flow size that gets into the branch road is also roughly the same, the oil-gas mixture who gets into the separation chamber barrel by eight branches is central symmetric distribution for central backward flow district in the separation chamber is more stable, research shows that more stable central backward flow district is favorable to improving oil and gas separator's separation efficiency.
The oil-gas mixture enters the spiral inlet flow channel through the mixture inlet, when the main flow flows through the same radius, the oil-gas mixture with the same flow is extruded into the eight branch paths, the oil-gas mixture enters the separation cavity in the direction tangent to the cylinder body of the separation cavity, the oil-gas mixture forms a rotational flow in the separation cavity, the lubricating oil with the higher density is left along the wall surface, the air with the lower density flows upwards from the central backflow area to the exhaust pipe, the separated air is communicated with the atmosphere, the separated lubricating oil enters the liquid storage cavity and returns to the oil tank through the outlet pipeline, and the separation of the lubricating 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 barrel 1;
the oil-gas mixture enters the pre-cyclone channel 2-1 through the inlet channel 2-2, then enters the flow distribution cavity 5-1 through the branch channel 5-2, and then enters the separation cavity cylinder body 1.
As a preference of this embodiment:
the inlet of the inlet flow passage 2-2 is rectangular, and the inlet flow passage 2-2 is rectangular and contracted. So that the inlet oil-gas mixture obtains a larger initial velocity.
As a preference of this embodiment:
the branch passages 5-2 are distributed along the circumferential direction of the separation cavity cylinder body 1 at the same angle interval, and the outlets of the branch passages 5-2 are tangent to the separation cavity cylinder body 1. The inlets of the eight branches are distributed at the same angle at intervals in the circumferential direction, so that the mixture pressure at the inlets of the eight branches is same, the flow of the oil-gas mixture entering the eight branches is approximately the same, the stability of a flow field of a separation section of the separator is ensured, and the oil-gas separation efficiency of the separator is effectively improved.
As a preference of this embodiment:
eight branch passages 5-2 are provided.
As a preference of this embodiment:
the section of the pre-swirl flow channel 2-1 is rectangular. The height of the prerotation section of the separator is ensured to be kept unchanged.
As a preference of this embodiment:
the cross 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 barrel 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 the structure can temporarily store the separated lubricating oil with higher purity under the condition that an oil return pump does not return the oil by arranging the annular oil storage cavity structure which is expanded outwards at the lower part of the separation cavity cylinder of the separator, so that the excessive loss of the lubricating oil is avoided. The oil outlet pipe 3-1 is directly connected to the side face of the oil storage cavity, so that the lubricating oil pumped by the oil return pipe is high-purity lubricating oil for completing oil-gas separation.
As a preference of this 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 can not be excessively accumulated and inside the separator, but directly enters the oil storage cavity.
As a preference of this embodiment:
As a preference of this embodiment:
an oil slinger 4-1 is arranged in the exhaust pipe 4. The slinger 4-1 reduces the loss of oil through the exhaust pipe to the atmosphere.
The rectangular contracted mixture inlet flow channel 2-2 ensures that the oil-gas mixture can have a larger initial speed after entering the oil-gas separator;
the prewhirl flow passage 2-1 is tangentially connected with the inlet flow passage 2-2, and the spiral line design is that the reduced radiuses of the main flow oil-gas mixture are the same when the main flow oil-gas mixture flows through the same angle, so that the flow rates of the oil-gas mixture entering each branch are approximately the same;
the eight branch runners 5-2 are arranged at the center of the pre-swirl runner and divide the main flow into 8 branches, so that the stability of a flow field during swirl separation is ensured;
the separation cavity cylinder 1 is tangentially connected with eight branch outlets and is arranged at the lower part of the pre-swirl flow channel 2-1, and the oil-gas mixture is subjected to swirl separation;
the oil storage cavity 3 is arranged below the separation cavity barrel 1 and can store certain lubricating oil;
the oil outlet pipe 3-1 is connected with the side surface of the oil storage cavity 3 and used for pumping the lubricating oil out of the oil-gas separator and returning the lubricating oil to the oil tank;
the cylindrical boss 3-2 is arranged at the center of the bottom of the separator and can enable lubricating oil which completes oil-gas separation to enter the oil storage cavity 5;
an exhaust pipe 4 for exhausting the air subjected to oil-gas separation in the separator to the atmosphere;
the slinger 4-1 is provided on the inner wall of the exhaust pipe 4, and can reduce the amount of lubricant droplets discharged from the exhaust pipe 4 to the atmosphere.
Aiming at the problems to be solved, as shown in fig. 1, in order to improve the separation efficiency of the oil-gas separator, an archimedean spiral line is introduced into the oil-gas separator, an inlet flow channel 2-2 of an oil-gas mixture is designed to be a rectangular contraction inlet, the design ensures that the inlet oil-gas mixture can obtain a larger initial speed in a pre-rotation section, the pre-rotation flow channel 2-1 is designed to be an archimedean spiral line type, and the design aims to mainly ensure that the flow rates of the oil-gas mixture entering each branch channel 5-2 are approximately the same when the oil-gas mixture flows through the same angle in the pre-rotation section, and simultaneously ensure that the pressures at the inlet positions of each branch channel 5-2 are approximately the same, as shown in fig. 6. The flow entering the separation cavity cylinder 1 tangentially from each branch outlet is approximately the same, the stability of the rotational flow in the separation cavity cylinder 1 is ensured, the reduction of the amount of lubricating oil in the central reflux area of the separation cavity cylinder 1 is facilitated, and the improvement of the separation efficiency of the separator is facilitated, as shown in fig. 8. The oil-gas mixture obtains circumferential speed after flowing through the pre-rotation flow channel 2-1, and the generated centrifugal force enables lubricating oil with larger density difference to be separated from air, wherein the oil-gas separation is completed by utilizing a centrifugal dynamic pressure type oil-gas separation method. The lubricating oil which completes the oil-gas separation in the separation cavity cylinder 1 enters the annular oil storage cavity 5 and is pumped out of the oil-gas separator through the oil outlet pipe 3-1 to complete 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-rotation flow channel 2-1 is designed to be an archimedes spiral line, so that the rotation radius is linearly reduced when the mixture rotates by a unit angle, that is, the flow rate of the oil-gas mixture flowing into each branch channel 5-2 is approximately the same, the circumferential uniform distribution of the eight branch channels 5-2 also ensures the circumferential uniformity of the oil-gas mixture entering the separation cavity cylinder 1, and simultaneously, the oil-gas mixture can obtain a larger circumferential speed in the separation cavity cylinder 1 under a smaller pressure loss, so that the flow field of the oil-gas mixture in the separation cavity cylinder 1 is more uniform and stable, a more stable central gas separator can be obtained in the separation cavity cylinder 1, and the separation efficiency of the oil is effectively improved. The oil storage cavity 3 arranged at the bottom of the oil-gas separator can store excessive lubricating oil in the oil storage cavity under the condition of large flow of the lubricating oil, the oil deflector ring 4-1 arranged in the exhaust pipe 4 can also effectively reduce the quantity of lubricating oil drops escaping from the oil-gas separator along with air from the exhaust pipe 4, the excessive loss of the lubricating oil caused by the escape of the excessive lubricating oil from the exhaust pipe 4 is avoided, and the cylindrical boss 3-2 arranged at the center of the oil-gas separator has the function of enabling the lubricating oil to enter the oil storage cavity 3.
Fig. 5 is a schematic sectional view of an inlet rectangular contracted flow passage, and the design can ensure that the oil-gas mixture can have a larger initial speed when flowing into a spiral pre-swirl flow passage, ensure that the oil-gas mixture can have a larger circumferential speed when performing cyclone dynamic pressure separation, and ensure the separation efficiency of the separator.
The circulation flow of the lubricating oil in the lubricating oil system of a certain type of real aero-engine is about 50L/min, the simulation working condition is designed to be that the flow of the lubricating oil is 50L/min, and the oil-gas ratio of an inlet oil-gas mixture is 5 to perform 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 entering the spiral pre-swirl flow channel from the contraction section inlet is reduced, the initial speed of the oil-gas mixture entering the spiral pre-swirl flow channel is increased, the pressure of the oil-gas mixture flowing through the spiral pre-swirl flow channel is approximately unchanged, the pressure is locally increased at eight inlet positions, and the pressure at the inlet positions is still ensured to be in the same range, namely the pressure and the flow of the eight branch inlet are approximately the same, the effectiveness of the spiral pre-swirl flow channel is verified, and the stability of the separation section flow field is ensured.
FIG. 7 is a cloud of the volume distribution of the lubricant phase at the K-K section of the separator under the working condition, wherein red represents the lubricant, blue represents air, and other colors represent the oil-gas mixture, wherein the closer the color is to the red, the larger the volume fraction of the lubricant is. FIG. 7 illustrates that the novel invention can swirl as desired and accomplish oil-gas separation; the oil storage structure at the bottom can also enable more lubricating oil to be stored in the oil-gas separator, and the high-purity lubricating oil is directly returned to the oil tank through the oil outlet pipe.
Fig. 8 shows a comparison graph of the separation efficiency of the conventional dynamic pressure type oil-gas separator and the novel oil-gas separator under the same oil-gas ratio working condition, wherein a red curve represents the separation efficiency of the novel oil-gas separator under the oil-gas ratio from 0.5 to 2.0, a black curve represents the separation efficiency of the conventional dynamic pressure type oil-gas separator under the same working condition, and it can be known from fig. 8 that the separation efficiency of the novel oil-gas separator is greatly improved.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be made by those skilled in the art without inventive work within the technical scope of the present invention are included in the scope of the present invention.
Claims (9)
1. The oil-gas separator with the spiral inlet flow channel comprises a separation cavity cylinder (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 (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 (1), and the oil-gas mixture inlet section (3) is communicated with the separation cavity cylinder (1) and the oil storage cavity (3);
it is characterized in that the preparation method is characterized in that,
the oil-gas mixture inlet section (2) comprises a prewhirl flow passage (2-1) and an inlet flow passage (2-2) communicated with the prewhirl flow passage (2-1), the prewhirl flow passage (2-1) is generally cylindrical, the inlet flow passage (2-2) is arranged along the tangential direction, and the outer side wall of the prewhirl flow passage (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 barrel body (1);
the oil-gas mixture separation device is characterized in that a branch channel (5-2) is further arranged inside the flow dividing device (5), the branch channel (5-2) is communicated with the pre-rotation flow channel (2-1) and the flow dividing cavity (5-1), and the oil-gas mixture enters the pre-rotation flow channel (2-1) through the inlet flow channel (2-2) and then enters the flow dividing cavity (5-1) through the branch channel (5-2) and then enters the separation cavity cylinder body (1).
2. An oil-gas separator with a spiral inlet channel as claimed in claim 1, wherein the inlet of the inlet channel (2-2) is rectangular, and the inlet channel (2-2) is rectangular and contracted.
3. An oil-gas separator with a spiral inlet channel as claimed in claim 1, wherein the branch channels (5-2) are distributed at equal angular intervals along the circumference of the separation chamber cylinder (1) and the outlets of the branch channels (5-2) are tangential to the separation chamber cylinder (1).
4. An oil-gas separator with a spiral inlet channel as claimed in claim 3, wherein the number of the branch channels (5-2) is eight.
5. An oil-gas separator with a spiral inlet channel as claimed in claim 1, wherein the pre-swirl channel (2-1) has a rectangular cross section.
6. The oil-gas separator with the spiral inlet channel is characterized in that 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).
7. An oil-gas separator with a spiral inlet channel as claimed in claim 1, wherein the bottom of the oil storage chamber (3) is provided with a cylindrical boss (3-2).
8. The oil-gas separator with the spiral inlet channel as claimed in 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) extends into the separation cavity cylinder (1), and the separation cavity cylinder (1) extends into the oil storage cavity (3).
9. An oil-gas separator with a spiral inlet channel as claimed in claim 1, wherein the exhaust pipe (4) is provided with an oil deflector ring (4-1).
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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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| US5496394A (en) * | 1991-11-15 | 1996-03-05 | Nied; Roland | Cyclone separator |
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| CN102802761A (en) * | 2009-04-07 | 2012-11-28 | 缠绕机公司 | Separation system comprising a swirl valve |
| 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 |
| CN106457102A (en) * | 2014-05-12 | 2017-02-22 | 李相珌 | Purification apparatus for compressed air |
| CN109974355A (en) * | 2019-04-16 | 2019-07-05 | 西北工业大学 | A kind of gas-liquid separator |
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2022
- 2022-01-30 CN CN202210113145.7A patent/CN114458419B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3439810A (en) * | 1967-09-26 | 1969-04-22 | Ajem Lab Inc | Centrifugal separator |
| US5496394A (en) * | 1991-11-15 | 1996-03-05 | Nied; Roland | Cyclone separator |
| JP2001224983A (en) * | 2000-02-16 | 2001-08-21 | Nisshin Flour Milling Co Ltd | Cyclone type dust collecting device |
| US6497114B1 (en) * | 2001-09-18 | 2002-12-24 | Visteon Global Technologies, Inc. | Oil separator |
| CN102802761A (en) * | 2009-04-07 | 2012-11-28 | 缠绕机公司 | Separation system comprising a swirl valve |
| CN106457102A (en) * | 2014-05-12 | 2017-02-22 | 李相珌 | Purification apparatus for compressed air |
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| CN114458419B (en) | 2023-05-02 |
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