CN107762631A - Oil vent, ventilating system and gas-turbine unit - Google Patents
Oil vent, ventilating system and gas-turbine unit Download PDFInfo
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- CN107762631A CN107762631A CN201610692258.1A CN201610692258A CN107762631A CN 107762631 A CN107762631 A CN 107762631A CN 201610692258 A CN201610692258 A CN 201610692258A CN 107762631 A CN107762631 A CN 107762631A
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- oil
- gas separation
- gas
- core body
- vent
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention relates to a kind of oil vent, ventilating system and gas-turbine unit, wherein oil vent (7) includes housing (73), oil-gas separation chamber is provided with housing (73), oil-gas separation chamber is used to carry out Oil-gas Separation to the gas mixture for entering oil-gas separation chamber, Oil-gas Separation intracavitary is provided with core body (72), the density of core body (72) is variable, to change the circulating resistance of oil-gas separation chamber.The circulating resistance of oil-gas separation chamber can be changed as needed or with the change of external condition in the present invention, when air-fuel mixture logistics capacity is larger, core body can be compressed, increase the resistance of oil-gas separation chamber, the time of Oil-gas Separation is carried out to increase gas mixture in oil vent, separating property is improved, while reduces the lubricating oil amount discharged with fluid, reduces lubricating oil consumption；When air-fuel mixture logistics capacity is smaller, the compression to core body can be released, reduces the resistance of oil-gas separation chamber, to ensure that the gas after separating can normally flow out.
Description
Technical field
The present invention relates to aero-engine technology field, more particularly to a kind of oil vent, ventilating system and combustion gas whirlpool
Turbine.
Background technology
Gas-turbine unit includes the part such as compressor, combustion chamber and turbine, in order to position exactly and rotatably
The rotor of compressor and turbine is installed, bearing is needed to use in engine.And the normal operation of bearing needs to pass through lubricating oil
Reliably lubricate or cool down, therefore, gas-turbine unit has the lubricating cavity for accommodating bearing.
In order to prevent the lubrication leakage in lubricating cavity, typically it is provided between the revolving part and static element of cavity is formed close
Seal apparatus, draw pressure-air from compressor part and sealing device is pressurized, flowing through the air-flow of sealing device makes sealing device
With good sealing.In order to ensure that pressure-air can flow into lubricating cavity, it is necessary to enter to lubricating cavity by sealed device all the time
Row ventilation, the air that sealed device is flowed into lubricating cavity are discharged to outside engine.Contain lubricating oil in air by lubricating cavity discharge,
It is often necessary to carry out Oil-gas Separation by ventilator, lubricating cavity is returned after lubricating oil is separated, and air is then discharged to outside engine.
If ventilator can not separate all lubricating oil from air, a part of lubricating oil can be discharged to outside engine with air, and this results in sliding
Oil consumption.
The separating property of ventilator is closely related with air mass flow, and air mass flow is bigger, and separating property is poorer, with air stream
The lubricating oil amount gone out is bigger, it is meant that lube use rate is big.Therefore, say that air mass flow is the smaller the better from lube use rate angle.So
And the flow that air flows through sealing device is bigger, the sealing of sealing device is better, and lubricating oil leaks fewer from sealing device.
It can be seen that ensure that the requirement of sealing property and lube use rate to air mass flow is conflicting by pressure-air
, this just brings the problem of air mass flow optimizes.In being commonly designed, pressure-air through being flowed from front to back in engine, with
The lubricating cavity for being pointed to different parts is pressurized.In pressure-air from front to back flow process, certain pressure can be produced
Some differences be present in loss, the pressure that the pressure loss to be pressurized the pressure-air of different parts lubricating cavity.
The pressure-air of sealed device into lubricating cavity typically passes through on engine gearbox or engine
Ventilator discharge on rotor.In order to ensure that the flow of all sealing devices meets needs, some sealing devices are often resulted in
Flow is excessive, so as to increase lubricating oil consumption.In addition, the flow of pressure-air is relevant with the rotating speed of engine, although passing through calculating
Minimum discharge needed for can determining under a certain rotating speed, but the rotating speed under engine different conditions be it is discrepant, ensure it is close
Under air mass flow needed for seal apparatus, it is big still to have other state point air mass flows, the problem of causing lube use rate excessive.
It is a kind of to economy, the requirement more and more higher of environmental pollution, design with the progress of gas-turbine unit technology
Seal request can be met, and can reaches that lube use rate is low, superior performance lubricating oil ventilating system is significant.
It should be noted that the information for being disclosed in background of invention part is merely intended to totality of the increase to the present invention
The understanding of background, and be not construed as recognizing or imply the information structure in any form by those skilled in the art public affairs
The prior art known.
The content of the invention
The purpose of the present invention is to propose to a kind of oil vent, ventilating system and gas-turbine unit, with as much as possible
Improve the effect of Oil-gas Separation.
To achieve the above object, the invention provides a kind of oil vent, including housing, housing is interior to be provided with Oil-gas Separation
Chamber, Oil-gas Separation intracavitary are provided with core body, and the density of core body is variable, to change the circulating resistance of oil-gas separation chamber.
Further, core body is made up of elastic porous material, and core body can be compressed, to change the density of core body.
Further, in addition to drive device, drive device are used to apply external force to core body.
Further, in addition to end cap, the side of housing are provided with end cap, and end cap can be relative to housing motion, with compression
Core body.
Further, housing outflow is connected with external fluid, to make end cap relative to shell by the effect of the pressure of external fluid
Body moves.
To achieve the above object, present invention also offers a kind of ventilating system, including above-mentioned oil vent.
Further, in addition at least two lubricating cavities and connecting line, connecting line are used to make at least two lubricating cavities
Communicate with each other.
Further, oil vent is arranged in the lubricating cavity of most downstream.
To achieve the above object, present invention also offers a kind of gas-turbine unit, including above-mentioned oil vent
Or above-mentioned ventilating system.
Further, in addition to rotor, oil vent are arranged in rotor, and internal flow is connected with gases at high pressure, housing
On end cap be arranged on can by gases at high pressure impact side, with by the percussion end cap of gases at high pressure relative to
Housing motion.
Further, in addition to rotor, oil vent are arranged in rotor and positioned at most downstreams in ventilating system
In lubricating cavity, rotor is provided with oil groove, and oil vent is provided with oilhole, and oilhole connects with oil groove, so that the lubricating oil after separation
Oil groove is entered by oilhole, so as to be cooled down to rotor.
Based on above-mentioned technical proposal, oil-gas separation chamber, the Oil-gas Separation are provided with the housing of oil vent of the invention
Intracavitary is provided with core body, and the density of core body is variable, so as to change the circulating resistance of oil-gas separation chamber, so, oil-gas separation chamber
Circulating resistance can as needed or change with the change of external condition, when enter oil-gas separation chamber oil gas mix
When compound flow is larger, core body can be compressed, increases the resistance of oil-gas separation chamber, to increase gas mixture in oil vent
The interior time for carrying out Oil-gas Separation, separating property is improved, while reduce the lubricating oil amount discharged with fluid, reduce lubricating oil consumption；When
Into oil-gas separation chamber air-fuel mixture logistics capacity it is smaller when, the compression to core body can be released, reduce the resistance of oil-gas separation chamber
Power, to ensure that the gas after separating can normally flow out.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of oil vent one embodiment of the present invention.
Fig. 2 be Fig. 1 embodiments in oil vent another state structural representation.
Fig. 3 is that oil vent is arranged on the structural representation in gas-turbine unit in Fig. 1 embodiments.
Fig. 4 is the principle sketch of ventilating system one embodiment of the present invention.
In figure：The lubricating cavities of 1- first, the lubricating cavities of 2- second, the lubricating cavities of 3- the 3rd, the connecting lines of 4- first, 5- second are connected
Pipeline, the connecting lines of 6- the 3rd, 7- oil vents, 8- blast pipes, 9- first sealing devices, the sealing devices of 10- second, 11-
Third sealing device, the sealing devices of 12- the 4th, the sealing devices of 13- the 5th, the sealing devices of 14- the 6th, the sealing devices of 15- the 7th,
100- gases at high pressure；
20- bearing blocks, 21- bearings, 22- rotors, 23- collars, 24- oil grooves；
71- end caps, 72- core bodys, 73- housings, 74- air vents, 75- air admission holes, 76- oilholes.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in embodiment is clearly and completely retouched
State.Obviously, described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Bright embodiment, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " " center ", " transverse direction ", " longitudinal direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " on ", " under ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the scope of the present invention.
To improve the oil gas separation of oil vent, the present invention proposes a kind of improved oil vent, to meet
Requirement of the rotating machineries such as existing gas-turbine unit to oil vent.
As shown in figure 1, being the structural representation of oil vent one embodiment of the present invention, the oil vent 7 includes
Housing 73, housing 73 is interior to be provided with oil-gas separation chamber, and oil-gas separation chamber is used to carry out the gas mixture for entering oil-gas separation chamber
Oil-gas Separation.
Air admission hole 75 is additionally provided with housing 73, the air admission hole 75 is used to make gas mixture enter Oil-gas Separation intracavitary；Shell
Air vent 74 and oilhole 76 are additionally provided with body 73, air vent 74 is used to make the gas outflow after Oil-gas Separation, and oilhole 76 is used to make
Outflow of lubrication oil after Oil-gas Separation.
Oil-gas Separation intracavitary is provided with core body 72, and the density of core body 72 is variable, passes through the change of the density of core body 72, Ke Yigai
Become the circulating resistance of oil-gas separation chamber.
After the density of core body 72 changes, the flow area of Oil-gas Separation intracavitary fluid is variable, flow area change
Afterwards, the circulating resistance of oil-gas separation chamber can also change therewith, and flow area is bigger, and circulating resistance is smaller.So, Oil-gas Separation
The circulating resistance of chamber can be changed as needed or with the change of external condition, when the oil for entering oil-gas separation chamber
When gas mixture flow is larger, the resistance of oil-gas separation chamber can be increased, entered with increasing gas mixture in oil vent
The time of row Oil-gas Separation, separating property is improved, while reduce the lubricating oil amount discharged with fluid, reduce lubricating oil consumption；Work as entrance
When the air-fuel mixture logistics capacity of oil-gas separation chamber is smaller, the resistance of oil-gas separation chamber can be reduced, to ensure the gas after separating
Can normally it flow out.For the lubricating cavity provided with sealing device, the reduction of oil-gas separation chamber resistance, can increase flow through it is close
The air mass flow of seal apparatus, ensure seal request.
The variable specific implementation form of the density of core body 72 can have it is a variety of, in a preferred embodiment, core body 72
It is made up of elastic porous material, porous material is advantageous to the separation of gas mixture, and gas can pass through under the action of the centrifugal force
Multiple holes effusion on core body 72, and lubricating oil then separates under the barrier effect of porous material with gas, and divide along oil gas
Wall from chamber flows out；The core body 72 of porous material can also be compressed, as shown in Fig. 2 being the knot after core body 72 is compressed
Structure schematic diagram, core body 72 can also recover automatically after being compressed, and during compressing with recovery, the density of core body 72 occurs
Change, the circulation area that fluid flows through core body 72 is also changed, and is so achieved that oil-gas separation chamber circulating resistance
Change, improve the effect of Oil-gas Separation.
Compression to core body 72, it can be realized by actively applying external force, such as, memory body is set outside core body 72,
When being stimulated by temperature sense or certain environmental condition change, the memory body can constantly swell, so as to compress core body 72,
After incentive condition disappearance, the memory body can also restore to the original state, and the compression stress of core body 72 be released, core body 72 can also recover
Original state.
In another embodiment, oil vent 7 also includes drive device, and drive device is outer for applying to core body 72
Power.The driving of drive device can be controlled as active external force drive form, its mechanism according to being actually needed,
To realize compression or recovery to core body 72.Drive device can be oil cylinder, cylinder or motor etc..
Above-mentioned drive device can be arranged on the inside of oil-gas separation chamber, can also be arranged on the outside of oil-gas separation chamber,
Compressed as long as can be realized to core body 72.
In order that the density of core body 72 is variable, can be realized by changing the volume of oil-gas separation chamber.Specifically, lubricating oil
Ventilator 7 also includes end cap 71, and the side of housing 73 is provided with end cap 71, and end cap 71 can move relative to housing 73, with compression
Core body 72.That is, end cap 71 relative to housing 73 motion, thus it is possible to vary the volume of oil-gas separation chamber, be full of oil gas in core body 72
During disengagement chamber, the volume of core body 72 is also just changed, therefore the density of core body 72 is just changed, and flows through the through-flow of core body 72
Area is also just changed.
Wherein, end cap 71 can be arranged on the either side of oil-gas separation chamber, as long as the mesh of compression core body 72 can be realized
.
Preferably, the outflow of housing 73 is connected with external fluid, by the pressure effect of external fluid end cap 71 can be made relative
Moved in housing 73.So, pressure correlation connection of the variable density of core body 72 just with external fluid gets up, the density of core body 72
The resistance can of oil-gas separation chamber is adjusted in real time according to the pressure change of external fluid in other words.
When oil vent is applied on gas-turbine unit, the gases at high pressure of circulation can in engine rotor
As above-mentioned external fluid, to make the circulating resistance of oil vent change with the pressure size of gases at high pressure.Work as height
When pressing gas pressure larger, increase the circulating resistance of oil vent, the disengaging time of gas mixture can be increased, improve
The effect of Oil-gas Separation；When the pressure of gases at high pressure is smaller, reduce the circulating resistance of oil vent, can avoid due to
Pressure or underfed and cause the reduction of sealing device performance.
For external fluid, end cap 71 can be arranged directly on the position that external fluid can impact, such as Fig. 1 institutes
Show, when there is fluid (wherein " left side " and " right side " is using direction as shown as reference direction) flowing from left to right the outside of housing 73, end
Lid 71 can be arranged on the left side of housing 73, so that external fluid can just blow to end cap 71, utilize the pressure of external fluid
Effect makes end cap 71 be moved relative to housing 73.
Certainly, when external fluid can impact the upside either right side of housing 73 or drive device is arranged on housing
When 73 upside or right side, end cap 71 can also be correspondingly disposed in the upside or right side of housing 73, as long as can realize
Compress the purpose of core body 72.
In addition, end cap 71 is arranged on to the position that external fluid can directly impact except above-mentioned, to cause portion's stream outside
Outside the technical scheme that the lower Driving terminal 71 of pressure effect of body moves, the set location of end cap 71 can also have other cleverer
Selection living.For example external fluid still flows from left to right, and end cap 71 is arranged on the upside or right side of housing 73, end cap
71 motion is driven by drive device, and the drive control of drive device then carries out active control by controller, controller with
The sensor connection of exterior fluid pressure size can be detected, so still can realize motion and the external fluid of end cap 71
The purpose that pressure size matches.
Oil vent 7 described in the above-mentioned each embodiment of the present invention, can apply to various ventilating systems or
In mechanical part with ventilating system, such as gas-turbine unit, aero-engine etc., to realize ventilation and Oil-gas Separation
Effect.
As shown in figure 3, oil vent 7 can apply on gas-turbine unit, the gas-turbine unit includes
Rotor 22, oil vent 7 are arranged in rotor 22, and being circulated in rotor 22 has gases at high pressure, and gases at high pressure are relatively general herein
Read, the pressure of its pressure ratio Oil-gas Separation intracavitary is big, and the end cap 71 on housing 73 is arranged on can be impacted by gases at high pressure one
Side, to be moved by the percussion end cap 71 of gases at high pressure relative to housing 73.
The 6th sealing device 14 and the 7th sealing device 15 are additionally provided with the gas-turbine unit, is circulated in rotor 22
Gases at high pressure can be entered in lubricating cavity 3 by the 6th sealing device 14 and the 7th sealing device 15, and pressure-air can make the
Six sealing devices 14 and the 7th sealing device 15 have good sealing function, avoid the leakage of lubricating oil.
In ventilating system, at least two lubricating cavities and connecting line can also be included, connecting line is used to make at least two
Individual lubricating cavity communicates with each other.
In the embodiment as shown in fig.4, it is disposed with (i.e., from left to right) along the flow direction of gases at high pressure 100
First lubricating cavity 1, the second lubricating cavity 2 and the 3rd lubricating cavity 3, specifically, the first lubricating cavity 1, which is located in gas-turbine unit, to be leaned on
The position of nearly compressor, the second lubricating cavity 2 and the 3rd lubricating cavity 3 respectively in gas-turbine unit close to low-pressure turbine and
The position of high-pressure turbine.
Pressure-air 100 enters the first lubricating oil through first sealing device 9, the second sealing device 10, third sealing device 11
Chamber 1, then enter lubricating cavity 3 through the first connecting line 4, the 3rd connecting line 6；Pressure-air 100 can also be through the 4th sealing
Device 12, the 5th sealing device 13 enter the second lubricating cavity 2, then enter the through the second connecting line 5, the 3rd connecting line 6
Three lubricating cavities 3；Pressure-air 100 can also enter lubricating cavity 3, Ran Houjing through the 6th sealing device 14, the 7th sealing device 15
Oil vent 7 enters blast pipe 8, then is discharged to by blast pipe 8 outside engine.
Wherein, the first connecting line 4 both can be by connecting with the second connecting line 5 so that the first lubricating cavity 1 and second
Lubricating cavity 2 communicates with each other, and can also pass through the connection with the 3rd connecting line 6 so that the first lubricating cavity 1 and the 3rd lubricating cavity 3
Communicating with each other, i.e., the second connecting line 5 and the 3rd connecting line 6 have shared one section of first connecting line 4, certainly, the first connection
Pipeline 4 can also set two independent pipelines, the first lubricating cavity 1 is connected with the second lubricating cavity 2 respectively, and the first lubricating oil
Chamber 1 connects with the 3rd lubricating cavity 3.
Second lubricating cavity 2 is communicated with each other with the 3rd lubricating cavity 3 by the second connecting line 5 with the 3rd connecting line 6, so
The mode be introduced through, shared so that three lubricating cavities are realized by three connecting lines and communicated with each other, and certainly, are appointed
Connection between two lubricating cavities of meaning can also be attached using independent pipeline.
During pressure-air 100 flows from the front end of engine toward rear end, it can make because of the pressure loss along journey
The pressure of pressure-air 100 declines so that the first lubricating cavity 1, the second lubricating cavity 2, air at the 3rd lubricating cavity 3 pressure by
Gradually reduce, so as to which cause each lubricating cavity upper sealing device obturages the problem of ineffective.But will be multiple by connecting line
After lubricating cavity communicates with each other, the first connecting line 4, the second connecting line 5, the throttling action of the 3rd connecting line 6 can make
One lubricating cavity 1, the second lubricating cavity 2, the pressure in the 3rd lubricating cavity 3 are also gradually to reduce, and the first sealing can so filled
Put the 9, second sealing device 10, third sealing device 11, the 4th sealing device 12, the 5th sealing device 13, the 6th sealing device
14th, the air mass flow of the 7th sealing device 15 is close to the relatively low discharge for meeting sealing property needs, that is to say, that so that front end
Lubricating oil cavity pressure it is larger, so as to reduce the air mass flow of the lubricating oil cavity sealing device of front end, both can guarantee that and flowed through positioned at upper
The air mass flow of the sealing device of trip is enough, meets its seal request, and and can enough avoids flowing through the sealing device positioned at downstream
Air mass flow very little, does not reach its seal request, solves different parts lubricating oil cavity sealing device air mass flow and is difficult to what is matched
Problem.
After multiple lubricating cavities are communicated with each other by a plurality of connecting line, the set location of oil vent 7 and setting
Quantity can have more flexible selection, it is not necessary to be respectively provided with oil vent in each lubricating cavity, it is preferable that along high pressure gas
The circulating direction of body, oil vent 7 only is set in the 3rd lubricating cavity 3 positioned at most downstream, positioned at the 3rd lubricating cavity 3
Gas mixture in other lubricating cavities of upstream can be collected in the 3rd lubricating cavity 3 by each connecting line, so
The defects of some lubricating oil cavity spaces can be overcome limited and oil vent can not be arranged, oil vent can also be reduced
Number, reduce the overall weight of engine.
Certainly, in other embodiments, if the number of lubricating cavity include three and more than, oil vent need to be only arranged on
In the lubricating cavity of most downstream.
It is applied to pressure on end cap 71 to be provided by the pressure-air for being pressurized the sealing device of the 3rd lubricating cavity 3, when starting
When machine rotating speed is higher, high-pressure air pressure is big, and end cap 71 is big to the pressure of core body 72, reduces the flow area of core body 72, core
The resistance increase of body 72, reduces the air mass flow for flowing through sealing device, and the air velocity in oil vent 7 reduces, lubrication
The time increase that oil is detained in oil vent 7, the separating property of oil vent 7 improve, the lubricating oil amount discharged with air
Reduce, so as to reduce lube use rate.
When the engine speed is lower, end cap 71 is small to the pressure of core body 72, and the flow area of core body 72 is relatively large, core
The resistance of body 72 reduces, and makes the air mass flow increase for flowing through sealing device, can meet sealing property needs.
In addition, oil vent 7 can be arranged in rotor 22 and (the ratio in the lubricating cavity of most downstream in ventilating system
Such as the 3rd lubricating cavity 3 as shown in Figure 4), rotor 22 is provided with oil groove 24, set for making separation on oil vent 7
The oilhole 76 of outflow of lubrication oil afterwards connects with oil groove 24, so that the lubricating oil after separation can enter oil groove by oilhole 76
24, lubricating oil flows through the partial heat that can take away rotor 22 out of oil groove 24, and rotor 22 is cooled down.
Specifically, oil vent 7 is arranged in the rotor 22 of engine, is limited and moved axially by collar 23.Bearing
21 are arranged on bearing block 20, and the lubricating oil in lubricating cavity 3 enters in the bearing bore of bearing 21, to be lubricated to bearing 21.
After gas mixture enters oil vent 7, lubricating oil is separated, and enters be arranged on engine rotor 22 under the action of the centrifugal force
Interior oil groove 24, oil groove 24 tilt relative to the axis of rotor 22, have certain gradient, so that lubricating oil can be along oil groove
24 smooth flows.
Because oil vent 7 is arranged on the inside of rotor 22, and it is located in the 3rd lubricating cavity 3 of most downstream close to hair
The position of motivation rear end, therefore the lubricating oil that oil vent is isolated can take away partial heat from the rotor 22 of engine,
So as to reduce the heat that engine rotor passes to bearing, be advantageous to improve the working environment of bearing.The lubricating oil isolated is received
It after collection, can be radiated by radiator, then be returned again by the oil groove 24 of corresponding pipeline and setting on the engine
Corresponding lubricating cavity, realize recycling for lubricating oil.
Below to the course of work of one embodiment of oil vent of the present invention, ventilating system and gas-turbine unit
Illustrate：
As shown in Figure 1 and Figure 2, oil vent 7 includes end cap 71, housing 73 and oil-gas separation chamber, and Oil-gas Separation intracavitary is set
There is core body 72, there is air vent 74, air admission hole 75 and oilhole 76 on housing 73.Core body 72 is made up of elastic porous material, in pressure
It can be compressed under effect.End cap 71 can be axially moveable under the effect of pressure-air 100 in housing 73.3rd lubricating cavity 3
Interior gas mixture enters oil-gas separation chamber by air admission hole 75, and air and lubricating oil separation, profit are carried out in Oil-gas Separation intracavitary
Lubricating oil is flowed out through oilhole 76 under the action of the centrifugal force, and air is discharged to outside engine after air vent 74 into blast pipe 8.
As shown in figure 1, when the engine speed is low, the high-pressure air pressure acted on end cap 71 is small, the pressure of core body 72
Contracting amount is small, and circulation area is big, can meet seal request by the air mass flow of each sealing device.Start as shown in Fig. 2 working as
When machine rotating speed is larger, the pressure of pressure-air is big, and end cap 71 is axially moveable in housing 73, so as to compress core body 72, circulation
Area reduces, and the resistance increase of air flow, so as to increase the residence time of lubricating oil, is reduced with the lubricating oil of air outflow,
So as to reduce the consumption for reducing lubricating oil.
, can by the explanation of multiple embodiments to oil vent of the present invention, ventilating system and gas-turbine unit
To see that oil vent, ventilating system and gas-turbine unit embodiment of the present invention at least have one or more of excellent
Point：
1st, by making the circulating resistance of oil-gas separation chamber variable, the seal gas flow for solving lubricating cavity under some states
Greatly, the problem of lube use rate is big；
2nd, each lubricating cavity is communicated with each other by connecting line, throttling action and oil vent through each connecting line
Adjustment effect, different conditions flowed down sealing device air mass flow it is suitable, each state can be effectively ensured and flowed down sealing
The air mass flow of device is close to minimum discharge, so as to reduce the air mass flow for flowing through sealing device；
3rd, oil vent is arranged on internal rotor, and the lubricating oil that oil vent is isolated can cool down engine and turn
Son, improve the working environment of bearing.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (11)
- A kind of 1. oil vent (7), it is characterised in that including housing (73), oil-gas separation chamber is provided with the housing (73), The oil-gas separation chamber is used to carry out Oil-gas Separation, the oil-gas separation chamber to the gas mixture for entering the oil-gas separation chamber Interior to be provided with core body (72), the density of the core body (72) is variable, to change the circulating resistance of the oil-gas separation chamber.
- 2. oil vent (7) according to claim 1, it is characterised in that the core body (72) is by elastic porous material It is made, the core body (72) can be compressed, to change the density of the core body (72).
- 3. oil vent (7) according to claim 2, it is characterised in that also including drive device, the drive device For applying external force to the core body (72).
- 4. oil vent (7) according to claim 2, it is characterised in that also including end cap (71), the housing (73) Side be provided with end cap (71), the end cap (71) can be moved relative to the housing (73), to compress the core body (72).
- 5. oil vent (7) according to claim 4, it is characterised in that housing (73) outflow is connected with outside stream Body, to make the end cap (71) be moved relative to the housing (73) by the effect of the pressure of the external fluid.
- 6. a kind of ventilating system, it is characterised in that including the oil vent (7) as described in any one of Claims 1 to 5.
- 7. ventilating system according to claim 6, it is characterised in that also including at least two lubricating cavities and connecting line, The connecting line is used to make at least two lubricating cavities communicate with each other.
- 8. ventilating system according to claim 7, it is characterised in that the oil vent (7) is arranged in most lower In the lubricating cavity of trip.
- 9. a kind of gas-turbine unit, it is characterised in that including the oil vent as described in any one of Claims 1 to 5 Or the ventilating system as described in any one of claim 6~8 (7).
- 10. gas-turbine unit according to claim 9, it is characterised in that also lead to including rotor (22), the lubricating oil Wind device (7) is arranged in the rotor (22), and being circulated in the rotor (22) has gases at high pressure, the end cap on the housing (73) (71) side that can be impacted by the gases at high pressure is arranged on, to pass through the percussion of the gases at high pressure end (71) are covered to move relative to the housing (73).
- 11. gas-turbine unit according to claim 9, it is characterised in that also lead to including rotor (22), the lubricating oil Wind device (7) is arranged in the rotor (22) and in the lubricating cavity of most downstream in ventilating system, on the rotor (22) Provided with oil groove (24), the oil vent (7) is provided with oilhole (76), and the oilhole (76) connects with the oil groove (24), with The lubricating oil after separation is set to enter the oil groove (24) by the oilhole (76), so as to be cooled down to the rotor (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692258.1A CN107762631B (en) | 2016-08-19 | 2016-08-19 | Oil vent, ventilating system and gas-turbine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610692258.1A CN107762631B (en) | 2016-08-19 | 2016-08-19 | Oil vent, ventilating system and gas-turbine unit |
Publications (2)
| Publication Number | Publication Date |
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| CN107762631A true CN107762631A (en) | 2018-03-06 |
| CN107762631B CN107762631B (en) | 2019-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610692258.1A Active CN107762631B (en) | 2016-08-19 | 2016-08-19 | Oil vent, ventilating system and gas-turbine unit |
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| CN (1) | CN107762631B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222400A (en) * | 2020-12-11 | 2021-01-15 | 西安赛隆金属材料有限责任公司 | Metal lattice material structure for oil-gas separator, rotating part and manufacturing method |
| CN116561933A (en) * | 2023-07-05 | 2023-08-08 | 北京航空航天大学 | Method and system for analyzing oil gas flow state of bearing cavity in aero-engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11117709A (en) * | 1997-10-13 | 1999-04-27 | Ishikawajima Harima Heavy Ind Co Ltd | Oil drop separating device from cooled, pressurized air, in gas turbine engine |
| RU2369760C1 (en) * | 2008-02-26 | 2009-10-10 | Открытое акционерное общество "Авиадвигатель" | Gas turbine engine bearing |
| CN103982300A (en) * | 2014-05-26 | 2014-08-13 | 中国航空动力机械研究所 | Centrifugal separation device for aero-engine |
| CN105683528A (en) * | 2013-10-10 | 2016-06-15 | 斯奈克玛 | Device for transferring oil between two repositories rotating relative to each other, and propeller turbomachine for an aircraft with such a device |
-
2016
- 2016-08-19 CN CN201610692258.1A patent/CN107762631B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11117709A (en) * | 1997-10-13 | 1999-04-27 | Ishikawajima Harima Heavy Ind Co Ltd | Oil drop separating device from cooled, pressurized air, in gas turbine engine |
| RU2369760C1 (en) * | 2008-02-26 | 2009-10-10 | Открытое акционерное общество "Авиадвигатель" | Gas turbine engine bearing |
| CN105683528A (en) * | 2013-10-10 | 2016-06-15 | 斯奈克玛 | Device for transferring oil between two repositories rotating relative to each other, and propeller turbomachine for an aircraft with such a device |
| CN103982300A (en) * | 2014-05-26 | 2014-08-13 | 中国航空动力机械研究所 | Centrifugal separation device for aero-engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222400A (en) * | 2020-12-11 | 2021-01-15 | 西安赛隆金属材料有限责任公司 | Metal lattice material structure for oil-gas separator, rotating part and manufacturing method |
| CN116561933A (en) * | 2023-07-05 | 2023-08-08 | 北京航空航天大学 | Method and system for analyzing oil gas flow state of bearing cavity in aero-engine |
| CN116561933B (en) * | 2023-07-05 | 2023-09-05 | 北京航空航天大学 | Method and system for analyzing oil gas flow state of bearing cavity in aero-engine |
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|---|---|
| CN107762631B (en) | 2019-07-02 |
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