WO2022100150A1

WO2022100150A1 - High-rotation-speed oil-gas separator for turbine engine

Info

Publication number: WO2022100150A1
Application number: PCT/CN2021/108592
Authority: WO
Inventors: 李纪永; 徐望; 李涛; 李芳�; 马阳; 陈亮
Original assignee: 四川航天中天动力装备有限责任公司
Priority date: 2020-11-16
Filing date: 2021-07-27
Publication date: 2022-05-19
Also published as: CN112392563B; CN112392563A

Abstract

A high-rotation-speed oil-gas separator for a turbine engine, the oil-gas separator comprising a hollow rotating shaft (77), wherein the upper portion of the rotating shaft (77) is provided with an oil input cavity assembly; the upper middle portion of the rotating shaft (77) is provided with a separation cavity assembly; and the lower portion of the rotating shaft (77) is provided with a driving mechanism. The separation cavity assembly comprises: a separator cavity (12) located on the periphery of the upper middle portion of the rotating shaft (77); a partition layer, which is located in the middle portion of the rotating shaft (77) in the separator cavity (12); a first centrifugal disc (19) located on the upper portion of the partition layer; a second centrifugal disc (20) located on the lower portion of the partition layer; a plurality of first through holes (21) located on the periphery of the first centrifugal disc (19); a plurality of second through holes (22) located on the periphery of the second centrifugal disc (20); an oil guide groove (17) that is located in the separator cavity (12) and is in communication with the plurality of first through holes (21); and an oil outlet (12a) that is located in the separator cavity (12) and is in communication with the oil guide groove (17). A gas outlet (7a) is provided at the bottom portion of the rotating shaft (77). The high-rotation-speed oil-gas separator is self-powered for driving, is not affected by the working condition of an engine, has high separation efficiency and can satisfy the volume and weight of a high-rotation-speed turbine engine.

Description

A high-speed oil-gas separator for a turbine engine

technical field

A high-speed oil and gas separator for a turbine engine belongs to the technical field of oil and gas separation, and in particular relates to the technical field of high-speed oil and gas separators.

Background technique

When the aero-engine is working, clean, low-temperature lubricating oil is transported to the rotating parts of the engine, thereby reducing friction and taking away the heat generated by friction. Under the action of the pressure difference inside and outside the lubrication system, the air will enter the system. Under the action of the high-speed rotating parts of the engine, the lubricating oil is mixed with the air to form the lubricating oil emulsion and oil mist, which are transported to the return by the oil return pump. in the oil system. In addition, in order to ensure the safe operation of the engine, the design capacity of the oil return pump is often larger than the oil supply, and it will also deliver a large amount of air to the oil return system during operation, so the fluid in the oil return system is a mixture of oil and gas two phases. , will increase the pipeline resistance, reduce the performance of the fuel and lubricating oil heat exchanger and affect the lubricating effect of the lubricating oil, affecting the safety of the engine. In addition, in order to prevent the pressure in the lubricating oil tank, gear box and bearing cavity from being too high, the engine lubricating oil system is provided with a vent to open the atmosphere, but it will cause the oil mist to be discharged together with the air, resulting in the loss of lubricating oil and affecting the Circulation of oil in the oil system. Therefore, it is necessary to install an oil-gas separator in the oil return system, which utilizes the difference between the density of lubricating oil and air to generate a rotating flow field in the oil-gas separator, and the lubricating oil particles in the mixed fluid are separated under the action of centrifugal force. The oil is separated from the air, and the air is led to the outside of the engine through the vent to ensure the continuous use of the oil.

At present, the oil and gas separators of aero-engines have various structures, but the design standards and specifications are not uniform. It usually has high manufacturing and use costs, and its internal structure and swirl field are complex and involve three-dimensional swirling turbulent flow, etc. Its separation efficiency is affected by structural parameters: oil and gas inlet pipe angle, length, etc. and inlet condition parameters: inlet flow, pressure, oil and gas ratio etc. great influence. Especially for high-speed turbine engines, the engine has the overall requirements of small size and light weight, and the structure size and separation efficiency of the oil-gas separator are strictly required.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a high-speed oil-gas separator for a turbine engine, so as to solve the problem that the existing oil-gas separator is greatly affected by engine operating conditions, has low separation efficiency, and its structural dimensions cannot meet the volume and weight requirements of the high-speed turbine engine. defect.

The technical scheme adopted in the present invention is as follows:

A high-speed oil and gas separator for a turbine engine, comprising a hollow rotating shaft, an oil inlet cavity assembly is disposed on the upper part of the rotating shaft, a separation cavity assembly is disposed in the middle and upper part of the rotating shaft, and a lower part of the rotating shaft is disposed with A drive mechanism, the separation chamber assembly includes a separator chamber located on the outer periphery of the middle and upper part of the rotating shaft, a partition layer located in the middle part of the rotating shaft in the separator chamber, and a first centrifugal circle located on the upper part of the partition layer Disk, a second centrifugal disk located at the lower part of the partition layer, a plurality of first through holes located on the outer circumference of the first centrifugal disk and a plurality of second through holes located on the outer circumference of the second centrifugal disk, located in the An oil guide groove in the separator cavity communicated with the plurality of first through holes and an oil outlet on the separator cavity communicated with the oil guide groove, and the bottom of the rotating shaft is an air outlet.

In the technical solution of the present application: the oil and gas mixture enters from the oil inlet chamber assembly. Since the rotating shaft is a hollow shaft, the oil and gas mixture enters from the top of the rotating shaft, and the rotating shaft drives the plurality of first through holes of the first centrifugal disc at high speed. The rotation drives the oil-air mixture to rotate. Due to the high density of the lubricating oil, the lubricating oil particles obtain a large centrifugal force, so that the lubricating oil has a large radial and tangential speed. The particles complete the collision, crushing and aggregation of oil droplets in the oil guide groove, so as to collect the lubricating oil and transport the lubricating oil to the oil outlet at the same time. A swirling flow is formed in the separator cavity, and due to the high-speed rotation of the rotating shaft doing work on the air, the air swirl flow is pressed into the second through hole on the second centrifugal disc at the lower part of the first centrifugal disc of the rotating shaft, enters the rotating shaft and flows from the rotating shaft. air outlet. The application utilizes the high pressure generated by the high-speed rotation in the oil-gas separator and the low pressure of the exhaust system of the engine, discharges the gas by the pressure difference inside and outside the oil-gas separator, collects the lubricating oil by the centrifugal action of the high-speed rotation, and passes through the hollow rotating shaft and the oil inlet cavity. The components, separation chamber components and drive mechanism are set up with their own power drive, which is not affected by engine operating conditions. It has the advantages of high separation efficiency and small structure size (can meet the volume and weight of high-speed turbine engines), while improving product integration. degree, simplifying the product structure.

Both the first through hole and the second through hole communicate with the rotating shaft.

Preferably, the inner wall of the separator cavity on the side where the oil outlet is located is attached to the outer circumference of the first centrifugal disc to form an attaching surface, and taking the attaching surface as a starting point, in the separator The inner wall of the cavity is provided with the oil guide grooves whose depths increase sequentially along the rotation direction of the rotating shaft and are communicated with the oil outlet. The initial depth of the oil guide groove is zero, and the inner wall of the separator cavity on the side where the oil outlet is located is abutted with the outer circumference of the first centrifugal disc to form a contact surface without oil thrown out. As the rotating shaft rotates counterclockwise, the oil guide groove The deeper the body, the better the collection and flow discharge of lubricating oil subjected to centrifugal force.

Preferably, the rotating shaft, the first centrifugal disk, the barrier layer and the second centrifugal disk are integrally formed, and the first centrifugal disk is communicated with the rotating shaft on the upper part of the barrier layer, so The second centrifugal disc communicates with the rotating shaft at the lower part of the barrier layer. It is convenient to process and assemble, and the product structure is simple.

Preferably, a semicircular notch is provided on the outer periphery of the first centrifugal disc between the first through holes. The semicircular notch on the outer circumference of the first centrifugal disc realizes tangential work on the lubricating oil in the oil guide groove, and transports the lubricating oil to the oil outlet.

More preferably, there are 8 first through holes, 8 semicircular notches, and 8 second through holes. Just right for a turbo engine.

Preferably, the separator cavity at the lower part of the oil outlet is in the shape of a centripetal cone. The centripetal vertebral body shape, that is, the air inlet of the second centrifugal disc is set as a conical inclined plane, so that when the air rotates, it is convenient for centripetal collection and discharge.

Preferably, the separation chamber assembly further comprises a rear bearing, a wave spring washer, and a fixing sleeve arranged in sequence from top to bottom on the rotating shaft located below the second centrifugal disc in the separator chamber and a graphite ring, the fixed sleeve is provided with a sleeve sealing rubber ring. The graphite ring is in contact with the rotating parts on the rotating shaft rotating at high speed, which realizes the sliding seal in the inner cavity of the separator and prevents the contact friction between the metal parts and the rotating parts; the wave spring washer is used for the axial compression and preloading of the rear bearing; The rotating shaft is installed and fixed in the separator cavity through the front bearing, the rear bearing, the wave spring washer, the fixing sleeve, the sleeve sealing rubber ring and the graphite ring.

Preferably, the outer circumference of the rotating shaft on the upper part of the first centrifugal disc is provided with a separator inner cavity cover matched with the separator cavity, and the separator cavity and the separator inner cavity cover An inner cavity sealing rubber ring is arranged between them. The sealing of the inner cavity of the separator is realized to prevent oil and gas leakage.

More preferably, an oil inlet chamber assembly is arranged on the upper part of the inner chamber cover of the separator, and the oil inlet chamber assembly includes a separation device located on the upper part of the inner chamber cover of the separator and sleeved on the top and the outer periphery of the rotating shaft. A machine cover, a front bearing located on the upper part of the rotating shaft in the separator cover and an inlet cavity located on the separator cover, the top of the rotating shaft is higher than the front bearing, the separator An organic cover sealing rubber ring is arranged between the cover and the inner cavity cover of the separator. The sealing rubber ring of the cover realizes the sealing of the air inlet cavity and prevents oil and gas leakage. The cover of the separator and the inner cavity cover of the separator are And the separator cavities are fixed by a plurality of connecting first screws, and the first screws are evenly distributed, preferably four.

More preferably, the inlet mouth is a converging inlet mouth, and the converging inlet mouth communicates with the top of the rotating shaft. The setting of the converging inlet port improves and stabilizes the inlet flow rate of the oil-gas mixture, improves the impact energy of the centrifugally moving oil droplets hitting the wall, and makes it easier to separate from the air.

Preferably, the driving mechanism is an outer rotor permanent magnet brushless motor, and the motor includes a motor stator, a motor outer rotor, a motor connecting piece, a second screw and a third screw, and the motor outer rotor passes through a plurality of the first and second screws. The three screws are evenly distributed, preferably four are fixed with the countersunk holes connected to the motor connecting piece, and the connecting piece is evenly distributed through a plurality of the second screws, preferably four are connected to the bottom of the separator cavity Fixed connection, the cylindrical protrusion at the bottom of the separator cavity is inserted into the reserved holes of the motor stator and the connecting piece to ensure the coaxiality, and the outer rotor of the motor is connected by sealing glue, interference and shrinkage, and realizes the external connection of the motor. The rotor drives the rotating shaft to rotate at the same speed, and the maximum speed of the motor is 25000r/min.

To sum up, due to the adoption of the above-mentioned technical solutions, the beneficial effects of the present invention are:

1. In the present invention, the high pressure generated by the high-speed rotation in the oil-gas separator and the low pressure of the engine exhaust system are utilized to discharge the gas with the pressure difference inside and outside the oil-gas separator, and the high-speed rotation centrifugal action is used to collect the lubricating oil, and the centrifugal action collects the lubricating oil. The design principle of the oil and gas separator is different from the traditional spiral, centrifugal and gravity separation principles;

2. The hollow rotating shaft, the oil inlet cavity component, the separation cavity component and the driving mechanism are set up, and they are driven by their own power and are not affected by the working conditions of the engine. They have the advantages of high separation efficiency and small structure size, and at the same time improve the product. The integration level simplifies the product structure;

3. Due to the high density of the lubricating oil, the lubricating oil particles obtain a large centrifugal force, so that the lubricating oil has a large radial and tangential velocity. By contacting the oil guiding groove in the separator cavity, the oil droplet particles are in the oil guiding groove. It completes the collision, crushing and aggregation of oil droplets to collect lubricating oil, and realizes tangential work on the lubricating oil in the oil-guiding groove through the semi-circular notch on the outer circumference of the first centrifugal disc, and transports the lubricating oil to the oil outlet;

4. Through the setting of the first centrifugal disc, the partition layer, the second centrifugal disc, the 8 first through holes and the 8 second through holes, the centers of the first centrifugal disc and the second centrifugal disc are not connected in the axial direction. , No complicated oil and gas separation structure, no need to set up additional pipelines for air, lubricating oil and oil and gas mixture, realizing coaxial double row, discharging lubricating oil and discharging air;

5. The setting of the separator cavity has the function of fixing multiple single parts, which reduces the number of oil and gas separator parts as a whole;

6. The outer rotor of the electric motor directly drives the rotating shaft, and the speed is about 25000rpm, so that the oil and gas separator has a high-speed and independent drive system, so that the separation efficiency is not affected by the engine operating conditions.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a partial cross-sectional view of the present invention;

Fig. 3 is the sectional view of A-A in Fig. 2 of the present invention;

Fig. 4 is the top connection diagram of the present invention;

Fig. 5 is the connection diagram of the motor of the present invention;

Fig. 6 is the front view of the rotating shaft of the present invention;

FIG. 7 is a front view of the cavity of the present invention.

Marked in the figure: 11-first screw, 111-graphite ring, 22-separator cover, 2a-air and gas inlet, 33-front bearing, 44-cover sealing rubber ring, 55-separator inner cavity cover, 66- Inner cavity sealing rubber ring, 77-rotating shaft, 7a-air outlet, 88-rear bearing, 99-wave spring washer, 10-fixed sleeve, 101-sleeve sealing rubber ring, 12-separator cavity, 12a- Oil outlet, 12b-bottom cylinder, 13-motor stator, 14-motor outer rotor, 15-second screw, 16-third screw, 17-oil guide groove, 18-semi-circular notch, 19-first centrifugal circle Disc, 20-second centrifugal disc, 21-first through hole, 22-second through hole, 23-motor connecting piece.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Example 1

As shown in Figures 1, 2, 4, 5, 6 and 7, a high-speed oil-gas separator for a turbine engine includes a hollow rotating shaft 77, and an oil inlet chamber assembly is arranged on the upper part of the rotating shaft 77. The middle and upper part of the shaft 77 is provided with a separation chamber assembly, and the lower part of the rotating shaft 77 is provided with a driving mechanism. The partition layer in the middle of the rotating shaft 77 in the cavity 12, the first centrifugal disc 19 located at the upper part of the partition layer, the second centrifugal disc 20 located at the lower part of the partition layer, and the first centrifugal disc 19 A plurality of first through holes 21 on the outer circumference and a plurality of second through holes 22 on the outer circumference of the second centrifugal disc 20 are located in the separator cavity 12 and communicate with the plurality of first through holes 21 The oil guide groove 17 and the oil outlet 12a on the separator cavity 12 communicated with the oil guide groove 17, the bottom of the rotating shaft 77 is the air outlet 7a.

In the technical solution of the present application: the oil and gas mixture enters from the oil inlet chamber assembly. Since the rotating shaft 77 is a hollow shaft, the oil and gas mixture enters from the top of the rotating shaft 77 , and the rotating shaft 77 drives the plurality of first centrifugal discs 19 . The through hole 21 drives the oil-air mixture to rotate under high-speed rotation. Due to the high density of the lubricating oil, the lubricating oil particles obtain a large centrifugal force, so that the lubricating oil has a large radial and tangential speed. The oil-guiding groove 17 in the oil-guiding groove 17 makes the oil drop particles complete the movements of oil droplet collision, crushing and aggregation in the oil-guiding groove 17, so as to collect the lubricating oil and transport the lubricating oil to the oil outlet 12a at the same time. Forces such as the viscous force of the oil phase, etc., form a swirling flow in the separator cavity 12. Since the high-speed rotation of the rotating shaft 77 does work on the air, the air swirl is pressed into the second centrifugal flow at the lower part of the first centrifugal disc 19 of the rotating shaft 77. The second through hole 22 on the disc 20 enters the rotating shaft 77 and is discharged from the air outlet 7a. In this application, the high pressure generated by the high-speed rotation in the oil-gas separator and the low pressure of the engine exhaust system are utilized, the gas is discharged by the internal and external pressure difference of the oil-gas separator, and the lubricating oil is collected by the high-speed rotating centrifugal action, and the oil is fed through the hollow rotating shaft 77 and the oil inlet. The cavity assembly, the separation cavity assembly and the drive mechanism are set up and driven by their own power, which is not affected by the engine operating conditions, and has the advantages of high separation efficiency and small structure size, and at the same time, it improves the product integration and simplifies the product structure. Both the first through hole 21 and the second through hole 22 communicate with the rotating shaft 77 .

Example 2

As shown in FIG. 3 , on the basis of Example 1, the inner wall of the separator cavity 12 on the side where the oil outlet 12a is located is attached to the outer circumference of the first centrifugal disc 19 to form an attached surface, Taking the abutting surface as a starting point, the inner wall of the separator cavity 12 is provided with the oil guide groove 17 whose depth increases sequentially and communicates with the oil outlet 12 a along the rotation direction of the rotating shaft 77 . The initial depth of the oil guide groove 17 is zero, and the inner wall of the separator cavity 12 on the side where the oil outlet 12a is located is in contact with the outer circumference of the first centrifugal disc 19 to form a contact surface without lubricating oil thrown out. Clockwise rotation, the deeper the oil guide groove 17 is, which facilitates the collection and flow discharge of the lubricating oil subjected to centrifugal force.

Example 3

As shown in FIGS. 1 , 2 , 6 and 7 , on the basis of Embodiment 1, the rotating shaft 77 , the first centrifugal disc 19 , the barrier layer and the second centrifugal disc 20 are integrally formed , the first centrifugal disc 19 communicates with the rotating shaft 77 at the upper part of the blocking layer, and the second centrifugal disc 20 communicates with the rotating shaft 77 at the lower part of the blocking layer. It is convenient to process and assemble, and the product structure is simple.

Example 4

As shown in FIGS. 3 and 6 , on the basis of Embodiment 1, a semicircular notch 18 is provided on the outer periphery of the first centrifugal disk 19 between the first through holes 21 . The semicircular notch 18 on the outer circumference of the first centrifugal disc 19 realizes tangential work on the lubricating oil in the oil guiding groove 17, and transmits the lubricating oil to the oil outlet 12a.

Example 5

As shown in FIG. 6 , on the basis of Embodiment 4, there are 8 first through holes 21 , 8 semicircular notches 18 , and 8 second through holes 22 . Just right for a turbo engine.

Example 6

As shown in Figures 1 and 2, on the basis of Embodiment 1, the separator cavity 12 at the lower part of the oil outlet 12a is in the shape of a centripetal cone. The centripetal vertebral body shape, that is, the air inlet of the second centrifugal disc 20 is set as a conical inclined plane, so that when the air rotates, it is convenient for centripetal collection and discharge.

Example 7

As shown in FIGS. 1 and 2 , on the basis of Embodiment 1, the separation chamber assembly further includes the rotating shaft 77 located below the second centrifugal disc 20 in the separator chamber 12 , The rear bearing 88 , the wave spring washer 99 , the fixing sleeve 10 and the graphite ring 111 are arranged in order from top to bottom. The fixing sleeve 10 is provided with a sleeve sealing rubber ring 101 . The graphite ring 111 is in contact with the rotating parts on the rotating shaft 77 rotating at high speed, which realizes the sliding seal in the inner cavity of the separator and prevents the contact friction between the metal parts and the rotating parts; the wave spring washer 99 is used for the axial pressure of the rear bearing 88 Tighten and pre-tighten; the rotating shaft 77 is installed and fixed in the separator cavity 12 through the front bearing 33, the rear bearing 88, the wave spring washer 99, the fixed sleeve 10, the sleeve sealing rubber ring 101, and the graphite ring 111.

Example 8

As shown in FIGS. 1 and 2 , on the basis of Embodiment 2, the outer circumference of the rotating shaft 77 on the upper part of the first centrifugal disc 19 is provided with a separator inner cavity matched with the separator cavity 12 The cover 55 is provided with an inner cavity sealing rubber ring 66 between the separator cavity 12 and the separator inner cavity cover 55 . The sealing of the inner cavity of the separator is realized to prevent oil and gas leakage.

Example 9

As shown in FIGS. 1 , 2 and 4 , on the basis of Embodiment 8, an oil inlet chamber assembly is provided on the upper part of the separator inner chamber cover 55 , and the oil inlet chamber assembly includes an oil inlet chamber cover located on the separator inner chamber cover. The separator cover 22 on the upper part of 55 and sleeved on the top and outer periphery of the rotating shaft 77 , the front bearing 33 located on the upper part of the rotating shaft 77 in the separator cover 22 and on the separator cover 22 The inlet port 2a, the inlet port 2a is a convergent inlet port, the convergent inlet port communicates with the top of the rotating shaft 77, and an organic cover sealing rubber ring is provided between the separator cover 22 and the separator inner cavity cover 55 44. The cover sealing rubber ring 44 realizes the sealing of the air inlet cavity and prevents oil and gas leakage. There are multiple connections between the separator cover 22 and the separator inner cavity cover 55 and the separator cavity 12 The first screws 11 are fixed, and the first screws 11 are evenly distributed, preferably four. The setting of the converging inlet port improves and stabilizes the inlet flow rate of the oil-gas mixture, improves the impact energy of the centrifugally moving oil droplets hitting the wall, and makes it easier to separate from the air.

Example 10

As shown in Figures 1, 2, 5 and 7, on the basis of Embodiment 1, the driving mechanism is an outer rotor permanent magnet brushless motor, and the motor includes a separator cavity 12, a bottom cylinder 12b, and a motor stator 13 , the motor outer rotor 14, the second screw 15, the third screw 16 and the motor connecting piece 23, the motor outer rotor is connected to the motor connecting piece through a plurality of third screws and the connecting piece is fixed by a plurality of second screws It is fixedly connected with the bottom of the separator cavity. The cylinder at the bottom of the separator cavity is inserted into the reserved holes of the motor stator and the connecting piece to ensure the coaxiality. The outer rotor of the motor is heated by sealing glue and interference. The outer rotor of the motor is driven to rotate the rotating shaft at the same speed, and the maximum speed of the motor is 25000r/min.

2 in the above-mentioned embodiment,

represents the direction of the oil-gas mixture,

Indicates the oil direction,

Indicates the direction of the air.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims

A high-speed oil and gas separator for a turbine engine, characterized in that it comprises a hollow rotating shaft (77), an oil inlet cavity assembly is arranged on the upper part of the rotating shaft (77), and an oil inlet chamber assembly is arranged on the upper part of the rotating shaft (77), and a middle and upper part of the rotating shaft (77) is arranged There is a separation chamber assembly, the lower part of the rotating shaft (77) is provided with a driving mechanism, and the separation chamber assembly includes a separator chamber (12) located on the outer periphery of the upper middle part of the rotating shaft (77), which is located in the separator The partition layer in the middle of the rotating shaft (77) in the cavity (12), the first centrifugal disc (19) located at the upper part of the partition layer, the second centrifugal disc (20) located at the lower part of the partition layer, A plurality of first through holes (21) located on the outer circumference of the first centrifugal disc (19) and a plurality of second through holes (22) located on the outer circumference of the second centrifugal disc (20), located in the separation The oil guide groove (17) in the separator cavity (12) communicated with the plurality of first through holes (21) and the oil outlet located on the separator cavity (12) and communicated with the oil guide groove (17) Port (12a), the bottom of the rotating shaft (77) is the air outlet (7a).
A high-speed oil-gas separator for a turbine engine according to claim 1, characterized in that the inner wall of the separator cavity (12) on the side where the oil outlet (12a) is located and the first centrifugal The outer circumferences of the discs (19) are bonded to form a bonding surface. Taking the bonding surface as a starting point, an inner wall of the separator cavity (12) is opened along the rotation direction of the rotating shaft (77) with increasing depths in sequence. and the oil guide groove (17) communicated with the oil outlet (12a).
A high-speed oil-gas separator for a turbine engine according to claim 1, characterized in that, the rotating shaft (77), the first centrifugal disc (19), the barrier layer and the second The centrifugal disc (20) is integrally formed, the first centrifugal disc (19) is communicated with the rotating shaft (77) on the upper part of the barrier layer, and the second centrifugal disc (20) is connected with the lower part of the barrier layer. The rotating shaft (77) communicates.
The high-speed oil-gas separator for a turbine engine according to claim 1, wherein a semicircle is provided on the outer circumference of the first centrifugal disc (19) between the first through holes (21). Notch (18).
A high-speed oil-gas separator for a turbine engine according to claim 4, characterized in that there are 8 first through holes (21) and 8 semicircular notches (18), Eight second through holes (22) are provided.
A high-speed oil-gas separator for a turbine engine according to claim 1, wherein the separation chamber assembly further comprises the second centrifugal disc (20) located in the separator chamber (12). ), the rear bearing (88), the wave spring washer (99), the fixing sleeve (10) and the graphite ring (111) are arranged in order from top to bottom on the rotating shaft (77) below the (10) is provided with a sleeve sealing rubber ring (101).
A high-speed oil-gas separator for a turbine engine according to claim 2, characterized in that, the outer circumference of the rotating shaft (77) on the upper part of the first centrifugal disc (19) is provided with the separator A separator inner cavity cover (55) matched with the cavity (12), an inner cavity sealing rubber ring (66) is arranged between the separator cavity (12) and the separator inner cavity cover (55).
A high-speed oil-gas separator for a turbine engine according to claim 7, characterized in that, an oil inlet chamber assembly is provided on the upper part of the inner chamber cover (55) of the separator, and the oil inlet chamber assembly includes a The separator cover (22) is sleeved on the upper part of the separator inner cavity cover (55) and is sleeved on the top and outer periphery of the rotating shaft (77), and the rotating shaft (77) is located in the separator cover (22). ) upper front bearing (33) and the inlet port (2a) on the separator cover (22), the top of the rotating shaft (77) is higher than the front bearing (33), the separator An organic cover sealing rubber ring (44) is arranged between the machine cover (22) and the separator inner cavity cover (55), and the separator machine cover (22) and the separator inner cavity cover (55) and the The separator chambers (12) are fixed by a plurality of connecting first screws (11).
A high-speed oil-gas separator for a turbine engine according to claim 8, characterized in that, the inlet port (2a) is a converging inlet port, and the converging inlet port is connected to the rotating shaft (77). ) connected to the top.
A high-speed oil-gas separator for a turbine engine according to claim 1, wherein the driving mechanism is an outer rotor permanent magnet brushless motor, and the motor comprises a motor stator (13), an outer motor rotor (14) ), the motor stator (13) is connected and fixed to the motor connecting piece (23) through a plurality of third screws (16), and the connecting piece (23) is connected to the motor connecting piece (23) through a plurality of second screws (15) The bottom of the separator cavity (12) is fixedly connected, and the bottom of the separator cavity (12) is provided with a cylindrical protrusion (12b) inserted into the reserved hole of the motor stator (13) and the connecting piece (23), The outer rotor (14) of the motor is connected and driven with the rotating shaft (77) by sealing glue and interference heat fitting, and the maximum speed of the motor is 25000 r/min.