CN105201909A - Gas compressor and centripetal air entraining vortex reducing device thereof - Google Patents
Gas compressor and centripetal air entraining vortex reducing device thereof Download PDFInfo
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- CN105201909A CN105201909A CN201410290217.0A CN201410290217A CN105201909A CN 105201909 A CN105201909 A CN 105201909A CN 201410290217 A CN201410290217 A CN 201410290217A CN 105201909 A CN105201909 A CN 105201909A
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Abstract
The invention relates to a gas compressor and a centripetal air entraining vortex reducing device thereof. The centripetal air entraining vortex reducing device is located in a disc cavity of the gas compressor and comprises a vortex reducing pipe and a retainer; the vortex reducing pipe is provided with a gas inlet and a gas outlet, the gas inlet is arranged in a suspended mode, and the gas outlet is fixed on the retainer. According to the gas compressor and the centripetal air entraining vortex reducing device, the air entraining airflow pressure loss can be reduced to the maximum extent.
Description
Technical field
The present invention relates to gas turbine technology, particularly relate to a kind of gas compressor and centripetal bleed subtracts whirlpool device.
Background technique
Along with the continuous lifting of aero engine technology, operating ambient temperature and the pressure of high-temperature component also increase thereupon, in order to ensure reliability and the elongate member life-span of parts, high efficiency cooling technology is constantly employed, and the cooling technology of general application all needs carry out relevant cooling from gas compressor grade bleed to high-temperature component or obturage.Need to consider pressure drop on the way and problem of temperature rise in the process of bleed, this just proposes high requirement to the design of bleed stream.Given this, the design object of bleed stream is the loss of reduction bleed air pressure, ensures the pressure of high-temperature component cooling air feed and pressure of obturaging.
The mode of motor employing perforate on the drum barrel axle of gas compressor that present stage is comparatively advanced realizes inner bleed.But in inner bleed process, because in gas from gas compressor dish chamber, high radial location flows to low radial location, free vortex development is violent, causes flow losses larger, effectively can weaken the violent development of eddy current by installing the mode subtracting whirlpool device, thus reduce the pressure loss.
Summary of the invention
The gas compressor and the centripetal bleed thereof that the object of the invention is a kind of at utmost reduction of proposition bleed airflow pressure losses subtract whirlpool device.
For achieving the above object, the invention provides following technological scheme:
The centripetal bleed of a kind of gas compressor subtracts whirlpool device, and be arranged in the dish chamber of gas compressor, comprise and subtract scroll and retainer, subtract scroll and have suction port and air outlet wherein, the unsettled setting of described suction port, described retainer is fixed in described air outlet.
Further, the radial position of described suction port is arranged in the speed ratio of the dish chamber air-flow of described gas compressor is the position of 1.
Further, subtract scroll described in and comprise the short tube that long tube and length is less than described long tube.
Further, described long tube and described short tube spaced apart along the circumference of described retainer.
Further, the angular range of the geometric center lines of the described short tube that described long tube is adjacent with it is 5 ° ~ 25 °.
Further, the scope of the difference of the length of described long tube and described short tube is 0 ~ 0.3L, and described L is the length of described long tube.
Further, described retainer offers through-hole structure.
Further, described through-hole structure and described to subtract scroll spaced apart along the circumference of described retainer.
Further, described through-hole structure be adjacent described in subtract the geometric center lines of scroll angular range be 5 ° ~ 25 °.
Further, described in subtract scroll and comprise the short tube that long tube and length is less than described long tube, described long tube and described short tube are arranged in often described in adjacent two between through-hole structure successively.
Further, the angular range of the angle of adjacent described long tube and the geometric center lines of described short tube and the geometric center lines of adjacent described short tube and described through-hole structure is 5 ° ~ 15 °.
Further, the scope of the difference of the length of described long tube and described short tube is 0 ~ 0.5L, and described L is the length of described long tube.
Further, the shape of cross section subtracting scroll described in each is circular, arc or horse shoe shaped.
Further, described arcly have circular arc and the line segment of two end points being connected this circular arc, and the distance range of the mid point of described circular arc and the mid point of described line segment is 0.5R ~ 1R, and described R is the radius of described circular arc.
Further, the length of described horseshoe-shaped major axis is 2 ~ 4 times of the length of minor axis.
The present invention also provides a kind of gas compressor, and it centripetal bleed of gas compressor comprised in the various embodiments described above subtracts whirlpool device.
Based on technique scheme, advantage of the present invention is:
Due to the unsettled setting of suction port that the present invention will subtract scroll, air outlet is fixedly installed, the air-flow that this setup can ensure to enter the suction port subtracting scroll is free vortex state, and the air-flow of free vortex state mainly radially flows towards axis direction, therefore enter radial arrange subtract scroll after, any exhumation process can not be produced, thus the pressure loss of bleed air-flow farthest can be avoided in this link, compared with the suction port subtracting scroll being fixedly installed the pressure loss of brought bleed air-flow problem bigger than normal with prior art, the pressure loss is less.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that the centripetal bleed of gas compressor provided by the present invention subtracts the embodiment that whirlpool device is installed in gas compressor;
Fig. 2 is the schematic diagram that the centripetal bleed of gas compressor provided by the present invention subtracts a whirlpool device embodiment;
Fig. 3 is the schematic diagram that the centripetal bleed of gas compressor provided by the present invention subtracts whirlpool another embodiment of device;
Fig. 4 is the schematic diagram that the centripetal bleed of gas compressor provided by the present invention subtracts whirlpool another embodiment of device;
Fig. 5 is the axial plane cross-sectional schematic subtracting scroll in Fig. 2 ~ 4;
Fig. 6 subtracts scroll radial cross-section spaced apart in compressor disc chamber in Fig. 2;
Fig. 7 subtracts scroll and through-hole structure radial cross-section spaced apart in compressor disc chamber in Fig. 3;
Fig. 8 subtracts scroll and through-hole structure radial cross-section spaced apart in compressor disc chamber in Fig. 4;
Fig. 9 a ~ 9c is the shape of cross section schematic diagram subtracting scroll in the present invention.
Embodiment
For making object of the invention process, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limiting the scope of the invention can not be interpreted as.
Shown in Fig. 1 is the schematic diagram that the centripetal bleed of gas compressor provided by the present invention subtracts the embodiment that whirlpool device is installed in gas compressor.As shown in Figure 1, what the present embodiment provided subtracts the dish chamber that whirlpool device is arranged in gas compressor, and the dish chamber of gas compressor is made up of two compressor discs 1.Two compressor discs 1 and describedly subtract whirlpool device with shaft axis O for rotating center, sense of rotation as indicated by arrowm.The air-flow of gas compressor mainstream channel (not shown) is after stator, and fraction is entered in compressor disc chamber by the long-round-shape drum barrel hole 3 on the drum barrel axle 2 of gas compressor.
Research shows, there is the flowing of typical free vortex between the compressor disc 1 of two synchronous rotaries, and free vortex flowing follows law of conservation of angular momentum, i.e. Vt × r=C, and wherein Vt is the circumferential speed of air-flow, and r is radius, and C is the constant relevant to motor.Air-flow is entered after between two compressor discs 1 by drum barrel hole 3, initial time Vt< Ω * r, and wherein Ω is the angular velocity of compressor disc 1, and Ω * r is the circumferential speed of compressor disc 1.Due to air-flow radially centripetal flow, along with r reduces (reducing with the distance at center, compressor disc chamber), Vt increases gradually, until Vt=Ω * r.That is, at Vt=Ω * r, when the circumferential speed of airspeed is equal with the circumferential speed of compressor disc 1, under relative coordinate system, air-flow only has the flowing velocity of radially centripetal direction.Certainly, air-flow is entered after between two compressor discs 1 by drum barrel hole 3, and along with the reduction of r, air-flow component circumferentially also reduces gradually, its mainly radially centripetal direction flow.
The whirlpool device that subtracts in the present embodiment comprises and subtracts scroll 4 and be fixed on the retainer 5 in described compressor disc chamber, the scroll 4 that subtracts wherein has suction port 4-1 and air outlet 4-2, the unsettled setting of suction port 4-1, air outlet 4-2 is arranged on retainer 5, and fixed by snap ring (not shown), air outlet 4-2 communicates with the center region in described compressor disc chamber.Retainer 5 is fixedly connected with a compressor disc 1 by bolt (as shown in Figure 5).
Mainly the suction port subtracting scroll is fixedly installed in prior art, and directly communicate with gas compressor mainstream channel, this setup makes by gas compressor mainstream channel and does not enter in a radial manner through the fraction that stator imports to subtract scroll, but enter with keeping an angle with radial direction and subtract scroll, what therefore first air-flow touched is the madial wall subtracting scroll, then acutely turn back subtracting in scroll to produce, form forced vortex, then discharged to the center in compressor disc chamber.And the above-mentioned process of acutely turning back can produce a large amount of pressure losses, therefore, the pressure loss discharged to the air-flow at the center in compressor disc chamber is bigger than normal.
And the whirlpool device that subtracts provided by the present invention, by the unsettled setting of suction port that will subtract scroll, air outlet is fixedly installed, ensure that the air-flow entering the suction port subtracting scroll is free vortex state, and along with the centripetal flow of air-flow, the air-flow of free vortex state mainly radially to central direction flowing, therefore enter radial arrange subtract scroll 4 after, produce the air flow component also corresponding minimizing of turning back, thus air-flow can be reduced in this link and subtracting in scroll 4 tube wall the pressure loss caused of turning back.This shows, the whirlpool device that subtracts provided by the present invention is compared to prior art, and bleed airflow pressure losses is less.
Because the suction port 4-1 place airspeed subtracting scroll 4 is made up of circumferential component velocity, radial velocity component and axial component velocity, and axial component velocity is much less than other direction component velocity, substantially can not consider.In order to obtain the minimum pressure loss, when the air-flow entering the suction port 4-1 subtracting scroll 4 only has the flowing velocity of radially centripetal direction, the pressure loss of bleed air-flow is minimum.The circumferential speed Vt of the airspeed of this position is equal with the circumferential speed Ω * r of compressor disc 1, and namely the speed ratio of air-flow is 1.That is, when the speed ratio that the radial position of suction port 4-1 is arranged in the dish chamber air-flow of described gas compressor is the position of 1, the pressure loss of bleed air-flow is minimum.And this position changes with the change of engine behavior point.Usually, the model of motor is specific, speed ratio be 1 position substantially can determine.Above-mentioned " speed ratio " refers to the tangential velocity of air-flow and the ratio of gas compressor rotational speed (being circumferential speed), changes along radial direction, and during different rotating speeds, the speed ratio of same radius position is different.
What Fig. 2 ~ 4 showed is the schematic diagram subtracting three kinds of different mode of executions of whirlpool device provided by the present invention, and below in conjunction with accompanying drawing 1, a pair each embodiment provided by the present invention carries out elaboration.
As shown in Figure 2, as a kind of optimal way subtracting scroll, subtract scroll 4 and can comprise long tube 41 and short tube 42, the length of short tube 42 is less than the length of long tube 41.The structure that this embodiment provides is from improving the adaptation operating range subtracting whirlpool device, under the prerequisite reducing bleed air pressure loss, what arrange different length subtracts scroll, thus when motor is in higher rotation speed, air-flow mainly enters from the suction port 4-1 of high radial location and subtracts scroll 4; When rotating speed is lower, the air-flow then main suction port 4-1 from low radial location enters and subtracts scroll 4.That is, the present invention, by arranging different pipe range, when bleed air pressure loss is enough low, can increases it and adapt to operating range.And, short tube 42 the overall weight that can also reduce whirlpool device is set.
" high radial location " and " low radial location " is herein carry out defining along the flow direction of air-flow respectively, " high radial location " refers to the position relatively far away apart from the Pan Qiang center of gas compressor, and " low radial location " refers to the position relatively near apart from the Pan Qiang center of gas compressor.
Preferably, long tube 41 and short tube 42 spaced apart along the circumference of retainer 5.Uniform by different length being subtracted scroll interval circumference, except the above-mentioned adaptation operating range mentioned is wide and except the advantage of weight reduction, air-flow can also absorb and weaken the impact of long tube 41 vibration in the inflow mode of the low radial location of short tube 42.
What Fig. 6 showed is that different length subtracts scroll radial cross-section spaced apart in compressor disc chamber.As shown in Figure 2 and Figure 6, long tube 41 and short tube 42 are middle every other week to distribution in compressor disc chamber, with long-round-shape drum barrel hole 3 one_to_one corresponding on drum barrel axle 2.The angle α scope of the geometric center lines of the short tube 42 that long tube 41 is adjacent with it is 5 ° ~ 25 °; The scope of the difference Δ L of the length of long tube 41 and short tube 42 is 0 ~ 0.3L, and L is wherein the length of long tube 41.
The selection principle of the difference Δ L of above-mentioned angle α and length is mainly considered to make the runner between tube and tube be similar to the runner subtracting scroll self as much as possible, thus the air-flow in compressor disc chamber is except being undertaken except radial delivery by subtracting scroll itself, radial delivery can also be carried out by runner between tube and tube, make air-flow in whole compressor disc chamber in the process being directed to Pan Qiang center, the pressure loss is down to minimum as much as possible.Therefore, list is considered from above-mentioned angle, and subtract scroll more intensive, the runner between the tube and tube of formation is more, and the air-flow utilization ratio in compressor disc chamber is higher, and the pressure loss of the bleed air-flow in whole compressor disc chamber is less.But the increase subtracting scroll will inevitably cause and increase an increase subtracting the whirlpool amount of thinking highly of, and therefore, the selection of above-mentioned parameter reaches the equilibrium of the pressure loss and weight.
As shown in Figure 3, through-hole structure 6 can also be offered on retainer 5, this through-hole structure 6 can make a part for the air-flow in compressor disc chamber flow out from subtracting scroll 4, some air-flow can flow out from the through-hole structure 6 retainer 5, this structure not only can reduce the pressure loss of air-flow, can also reduce the weight of whirlpool device.
In addition, when subtracting scroll 4 if retainer 5 is set to entirely, air-flow in the dish chamber of gas compressor mainly will concentrate on the rotary chamber subtracting scroll 4 suction port 4-1 upstream, and then enter and subtract scroll 4 and flow, and the air pressure of the runner formed between tube and tube is on the low side, cause the vibration problem subtracting scroll 4 remarkable.The present invention by by through-hole structure 6 with to subtract scroll 4 spaced apart along the circumference of retainer 5, air-flow can be made and subtract except scroll 4 except entering, can also flow through from the through-hole structure 6 retainer 5, the pressure in whole compressor disc chamber is made to keep even as much as possible, therefore air-flow can absorb when flowing through the runner formed between tube and tube and take away the vibration subtracting scroll 4 and produce, thus makes the vibration subtracting scroll 4 be in rational level.
What Fig. 7 showed is the through-hole structure radial cross-section spaced apart in compressor disc chamber subtracted on scroll, retainer.As shown in Figure 3 and Figure 7, through-hole structure 6 and subtract scroll 4 and long-round-shape drum barrel hole 3 one_to_one corresponding on drum barrel axle 2, the angle α scope of the geometric center lines of scroll 4 that what through-hole structure 6 was adjacent subtract is 5 ° ~ 25 °.The selection principle of this angle α is mainly considered to make the runner between tube and tube be similar to the runner subtracting scroll self as much as possible, thus the air-flow in compressor disc chamber is except being undertaken except radial delivery by subtracting scroll itself, radial delivery can also be carried out by runner between tube and tube, make air-flow in whole compressor disc chamber in the process being directed to Pan Qiang center, the pressure loss is down to minimum as much as possible.Therefore, list is considered from above-mentioned angle, and subtract scroll more intensive, the runner between the tube and tube of formation is more, and the air-flow utilization ratio in compressor disc chamber is higher, and the pressure loss of the bleed air-flow in whole compressor disc chamber is less.But the increase subtracting scroll will inevitably cause and increase an increase subtracting the whirlpool amount of thinking highly of, and therefore, the selection of above-mentioned parameter reaches the equilibrium of the pressure loss and weight.
As shown in Figure 4, the long tube 41 in the present embodiment and short tube 42 are arranged between often adjacent two through hole structure 6 successively.By this structure, in the loss of minimizing bleed air pressure and can subtract on the basis of weight of whirlpool device, the advantage that the adaptation operating range that the embodiment that combining Fig. 2 provides has is larger and the scroll level of vibration that subtracts that the embodiment that Fig. 3 provides has control rational advantage.
What Fig. 8 showed is through-hole structure radial cross-section spaced apart in compressor disc chamber that different length subtracts on scroll, retainer.As shown in Figure 4 and Figure 8, long tube 41, short tube 42 and through-hole structure 6 and long-round-shape drum barrel hole 3 one_to_one corresponding on drum barrel axle 2.The angle α scope of adjacent long tube 41 and the geometric center lines of short tube 42 is 5 ° ~ 15 °.The angle of the geometric center lines of long tube 41 and through-hole structure 6 is β, β=2* α, and the angular range of namely adjacent short tube 42 and the geometric center lines of through-hole structure 6 is 5 ° ~ 15 °.The scope of the difference Δ L of the length of long tube 41 and short tube 42 is 0 ~ 0.5L, and L is wherein the length of long tube 41.
The selection principle of the difference Δ L of above-mentioned angle α and length is mainly considered to make the runner between tube and tube be similar to the runner subtracting scroll self as much as possible, thus the air-flow in compressor disc chamber is except being undertaken except radial delivery by subtracting scroll itself, radial delivery can also be carried out by runner between tube and tube, make air-flow in whole compressor disc chamber in the process being directed to Pan Qiang center, the pressure loss is down to minimum as much as possible.Therefore, list is considered from above-mentioned angle, and subtract scroll more intensive, the runner between the tube and tube of formation is more, and the air-flow utilization ratio in compressor disc chamber is higher, and the pressure loss of the bleed air-flow in whole compressor disc chamber is less.But the increase subtracting scroll will inevitably cause and increase an increase subtracting the whirlpool amount of thinking highly of, and therefore, the selection of above-mentioned parameter reaches the equilibrium of the pressure loss and weight.
The shape subtracting the cross section of scroll shown in Fig. 9 a uses more circle at present.
The shape subtracting the cross section of scroll shown in Fig. 9 b is arc, and the sense of rotation perpendicular to air-flow is launched, and this arcuate cross-section amasss identical with the area of the circular cross section of Fig. 9 a.Arc have circular arc m1 and can select within the scope of 0.5R ~ 1R with the distance S of the mid point of the line segment n1 being connected this circular arc m1 two end points, circular arc m1 and the mid point of line segment n1, and R is the radius of circular cross section in Fig. 9 a, i.e. the radius of circular arc m1.Scroll is subtracted by arcuate cross-section, compressor disc chamber can be separated, under the precondition keeping the gas flow flux identical with circular cross-section, make between tube and tube, also to form the runner being similar to and subtracting in scroll, the runner of air-flow between tube and tube is from the center cavity in through-hole structure 6 radial inflow compressor disc chamber, avoid air-flow repeatedly to turn back between tube and tube outer wall the brought pressure loss, and then the loss of the integral pressure of the bleed air-flow in compressor disc chamber is down to minimum.
The shape subtracting the cross section of scroll shown in Fig. 9 c is horse shoe shaped, launch to sense of rotation, this horse shoe shaped cross-section area is identical with the area of the circular cross section of Fig. 9 a, therefore horse shoe shaped cross section subtract that scroll is greater than same circular transverse cross section along the discharge value in flow rotation direction subtract scroll, be equally also beneficial to and the loss of the integral pressure of the bleed air-flow in compressor disc chamber be down to minimum.In the present embodiment, horse shoe shaped has Inner arc m2 and external arc m3, and constitute and be similar to oval half, the length of its major axis a is 2 ~ 4 times of the length of minor axis b.
The present invention also comprises a kind of gas compressor, and what it comprised that the various embodiments described above provide subtracts whirlpool device, and the other parts of gas compressor are prior art, no longer launch to describe at this.
Finally should be noted that: above embodiment is only in order to illustrate that technological scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technological scheme scope of request of the present invention protection.
Claims (16)
1. the centripetal bleed of gas compressor subtracts a whirlpool device, is arranged in the dish chamber of gas compressor, comprises and subtract scroll and retainer, subtracts scroll and has suction port and air outlet, it is characterized in that wherein: the unsettled setting of described suction port, described retainer is fixed in described air outlet.
2. the centripetal bleed of gas compressor as claimed in claim 1 subtracts whirlpool device, it is characterized in that: the speed ratio that the radial position of described suction port is arranged in the dish chamber air-flow of described gas compressor is the position of 1.
3. the centripetal bleed of gas compressor as claimed in claim 1 or 2 subtracts whirlpool device, it is characterized in that: described in subtract scroll and comprise the short tube that long tube and length is less than described long tube.
4. the centripetal bleed of gas compressor as claimed in claim 3 subtracts whirlpool device, it is characterized in that: described long tube and described short tube spaced apart along the circumference of described retainer.
5. the centripetal bleed of gas compressor as claimed in claim 4 subtracts whirlpool device, it is characterized in that: the angular range of the geometric center lines of the described short tube that described long tube is adjacent with it is 5 ° ~ 25 °.
6. the centripetal bleed of gas compressor as claimed in claim 5 subtracts whirlpool device, it is characterized in that: the scope of the difference of the length of described long tube and described short tube is 0 ~ 0.3L, and described L is the length of described long tube.
7. the centripetal bleed of gas compressor as claimed in claim 1 or 2 subtracts whirlpool device, it is characterized in that: described retainer offers through-hole structure.
8. the centripetal bleed of gas compressor as claimed in claim 7 subtracts whirlpool device, it is characterized in that: described through-hole structure and described to subtract scroll spaced apart along the circumference of described retainer.
9. the centripetal bleed of gas compressor as claimed in claim 8 subtracts whirlpool device, it is characterized in that: the angular range subtracting the geometric center lines of scroll described in described through-hole structure is adjacent is 5 ° ~ 25 °.
10. the centripetal bleed of gas compressor as claimed in claim 8 subtracts whirlpool device, it is characterized in that: described in subtract scroll and comprise the short tube that long tube and length is less than described long tube, described long tube and described short tube are arranged in often described in adjacent two between through-hole structure successively.
The centripetal bleed of 11. gas compressor as claimed in claim 10 subtracts whirlpool device, it is characterized in that: the angular range of the angle of adjacent described long tube and the geometric center lines of described short tube and the geometric center lines of adjacent described short tube and described through-hole structure is 5 ° ~ 15 °.
The centripetal bleed of 12. gas compressor as claimed in claim 11 subtracts whirlpool device, it is characterized in that: the scope of the difference of the length of described long tube and described short tube is 0 ~ 0.5L, and described L is the length of described long tube.
The centripetal bleed of 13. gas compressor as claimed in claim 1 subtracts whirlpool device, it is characterized in that: the shape of cross section subtracting scroll described in each is circular, arc or horse shoe shaped.
The centripetal bleed of 14. gas compressor as claimed in claim 13 subtracts whirlpool device, it is characterized in that: described arcly have circular arc and the line segment of two end points being connected this circular arc, the distance range of the mid point of described circular arc and the mid point of described line segment is 0.5R ~ 1R, and described R is the radius of described circular arc.
The centripetal bleed of 15. gas compressor as claimed in claim 13 subtracts whirlpool device, it is characterized in that: the length of described horseshoe-shaped major axis is 2 ~ 4 times of the length of minor axis.
16. 1 kinds of gas compressors, is characterized in that: the centripetal bleed of gas compressor comprised according to any one of claim 1 ~ 15 subtracts whirlpool device.
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| CN201410290217.0A CN105201909B (en) | 2014-06-25 | 2014-06-25 | A kind of compressor and its centripetal bleed subtract whirlpool device |
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| CN201410290217.0A CN105201909B (en) | 2014-06-25 | 2014-06-25 | A kind of compressor and its centripetal bleed subtract whirlpool device |
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| CN107023394A (en) * | 2017-04-07 | 2017-08-08 | 中国航发沈阳发动机研究所 | Tubular type compressor rotor air entraining device with damping |
| CN110081027A (en) * | 2019-04-29 | 2019-08-02 | 南京航空航天大学 | It is a kind of to subtract whirlpool device bleed air system for the finned of compressor |
| CN110469540A (en) * | 2019-07-24 | 2019-11-19 | 南京航空航天大学 | A kind of counter-rotating compressor structure and the combined type suitable for counter-rotating compressor bleed air system subtract whirlpool device structure |
| CN112377307A (en) * | 2020-10-28 | 2021-02-19 | 北京航空航天大学 | Curved tube type vortex reducing system with high-radius outlet |
| CN114483219A (en) * | 2020-10-26 | 2022-05-13 | 中国航发商用航空发动机有限责任公司 | Vortex reducer, vortex reducing pipe and method for arranging vortex reducing pipe |
| CN114838000A (en) * | 2022-06-01 | 2022-08-02 | 北京航空航天大学 | Variable-length tubular type vortex reducer system of aero-engine compressor |
| CN114961893A (en) * | 2021-02-24 | 2022-08-30 | 中国航发商用航空发动机有限责任公司 | Aeroengine vortex reducer air entraining device and aeroengine |
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