CN107023394B - Tubular type compressor rotor air entraining device with damping - Google Patents
Tubular type compressor rotor air entraining device with damping Download PDFInfo
- Publication number
- CN107023394B CN107023394B CN201710226955.2A CN201710226955A CN107023394B CN 107023394 B CN107023394 B CN 107023394B CN 201710226955 A CN201710226955 A CN 201710226955A CN 107023394 B CN107023394 B CN 107023394B
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- air entraining
- retainer ring
- entraining pipe
- disk
- bleed
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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
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to compressor rotor structure-design technique fields, specifically provide the tubular type compressor rotor air entraining device with damping, for guiding air-flow to flow to core from the wheel hub of compressor, air entraining device includes air entraining pipe, damper tube and bleed disk, bleed tube wall is equipped with air entraining pipe flange, it damps tube wall and is equipped with damper tube protrusion, the top surface of air entraining pipe flange and bleed disk are in contact, and the top surface of the bottom surface of air entraining pipe flange and damper tube protrusion is bonded contact；Bleed disk is hollow disk, and outer wall is provided with the pore for installing air entraining pipe, and one side end face of bleed disk, which is equipped with, is axially fixed in the external member fixed block on pore for air entraining pipe, and another side end face is equipped with the block for being raised in the side end face；Retainer ring is housed, the both sides of the face of retainer ring are contacted with block and air entraining pipe flange respectively, and retainer ring is circumferentially fixed on bleed disk by air entraining pipe on bleed disk；Retainer ring is equipped with the retainer ring head for being raised in retainer ring end face, and retainer ring head and block, which match, keeps retainer ring circumferentially fixed along bleed disk.
Description
Technical field
The present invention relates to compressor rotor structure-design technique fields, in particular to the tubular type compressor rotor with damping draws
Device of air.
Background technique
It is needed when aero-engine works from the bleed of compressor rotor part, so that other components are obturaged or are cooled down,
Since compressor rotor component speed is higher, what gas entered is a typical inside rotating disc cavities, and radial inward flow is in the process by shape
At strong vortex.If what gas was formed is free vortex, the eddy flow formed during radial inward flow will be increasingly stronger
Strong, to generate the very big pressure loss, design, which subtracts whirlpool device, in air entraining device can well solve this problem.
That applies at this stage subtracts whirlpool device mainly and has tubular type, nozzle-type, board-like etc..As shown in Figure 1, it is to press that tubular type, which subtracts whirlpool device,
A series of radial round tubes are installed between mechanism of qi disk, promotes the Radial Flow of air-flow by the radial directed of air entraining pipe, destroys freely
The formation in whirlpool makes it easier to flow to core by compressor wheel hub to reduce the pressure loss and air-flow pressure drop, current
V2500 Engine Series just use the air entraining device of this kind of form, but the air entraining device has the drawback that
1, air entraining pipe does not take appropriate vibration reducing measure, as rotor part, in the process rotated with compressor rotor
In inevitably generate vibration problem, vibration cannot be controlled effectively, it is likely that itself is damaged, reduce reliability；
2, the volume of bleed disk disk body is larger, so that its construction weight is larger, is unfavorable for reducing the weight of air entraining device, and
And the radius of bleed disk disk body is larger so that its radius of turn is larger, cause during the work time its own stress it is larger.
Summary of the invention
To overcome above-mentioned at least one defect of the existing technology, the present invention provides a kind of tubular types of band damping to calm the anger
Machine rotor air entraining device, for guiding air-flow to flow to core from the wheel hub of the compressor, the air entraining device is fixed on
Between the first wheel disc and the second wheel disc of the compressor, the air entraining device includes air entraining pipe, damper tube and bleed disk；
Bleed tube wall bottom is equipped with air entraining pipe flange, is coaxially equipped with damper tube protrusion, bleed on the tube wall of damper tube
Pipe sleeve is located at composition air entraining pipe external member, the top surface of air entraining pipe flange and bleed disk on damper tube and is in contact, the bottom of air entraining pipe flange
Face and the fitting contact of the top surface of damper tube protrusion；
Bleed disk is hollow disk, and outer wall is circumferentially evenly equipped with the pore for installing air entraining pipe, wherein the one of bleed disk
Side end face is circumferential to be equipped with external member fixed block in uniform way, and the air entraining pipe external member is axially fixed on pore, draws by external member fixed block
Another side end face of gas disk is circumferential to be equipped with the block for being raised in the side end face in uniform way；
Retainer ring, a side end face of retainer ring and block fitting contact, another side end face difference are removably housed on bleed disk
It is contacted with air entraining pipe flange and the fitting of damper tube protrusion, retainer ring is circumferentially fixed on bleed disk by the air entraining pipe external member；
Retainer ring is equipped with the retainer ring head for being raised in retainer ring end face, and retainer ring head and block, which match, keeps retainer ring circumferential along bleed disk
It is fixed.
Preferably, the outer rim of the side end face equipped with external member fixed block of bleed disk is equipped with installation side, and installation side is in disk
Shape, bleed disk are fixed on the second wheel disc by installing side.
Preferably, the size of the rounded rectangle of air entraining pipe flange and damper tube protrusion and the two is identical.
Preferably, external member fixed block is L-shaped or J-shaped hook, and the aperture phase of the length of external member fixed block and pore
Together.
Preferably, it is set on retainer ring there are two retainer ring head, retainer ring head is between the axial raised convex block of retainer ring, retainer ring head
Distance is identical with the length of block.
Preferably, the top tube wall of damper tube is axially provided with four gaps along damper tube, which is circumferentially evenly arranged on
It damps on tube wall.
Preferably, lightening recesses are equipped on the inner and outer wall of bleed disk, the lightening recesses are arranged in adjacent apertures
Between.
The tubular type compressor rotor air entraining device of band damping provided by the invention, has the following beneficial effects:
1, the vibrational energy of air entraining device during the work time can be absorbed in the damper tube being arranged in air entraining pipe, and then subtracts
Small vibration improves reliability and the service life of air entraining device.
2, bleed disk, which is fixed on hub area, can reduce bleed disk radius, and reduce the radius of turn of bleed disk, and
Lightening recesses are provided on bleed disk, the weight of air entraining device can be substantially reduced, and reduce its own weight to reduce bleed disk
Stress.
3, it is matched by external member fixed block, block and retainer ring, facilitates bleed while guaranteeing air entraining pipe stability
The dismounting of pipe saves assembly time and convenient for later maintenance.
Detailed description of the invention
Fig. 1 is operation schematic diagram of the air entraining device in the prior art in compressor rotor；
Fig. 2 is the overall schematic of air entraining device provided by the invention；
Fig. 3 is operation schematic diagram of the air entraining device provided by the invention in compressor rotor；
Fig. 4 is the elevational cross-sectional view of air entraining pipe；
Fig. 5 is the overhead sectional view of air entraining pipe；
Fig. 6 is the elevational cross-sectional view of damper tube；
Fig. 7 is the overhead sectional view of damper tube；
Fig. 8 is the overall schematic of bleed disk；
Fig. 9 is the schematic elevation view of bleed disk；
Figure 10 is the side view cutaway drawing of bleed disk；
Figure 11 is the schematic elevation view of retainer ring；
Figure 12 is the structural schematic diagram in the direction C in Figure 11；
Figure 13 is the whole assembling schematic diagram of air entraining pipe external member；
Figure 14 is the partial enlarged view of location A in Fig. 2；
Figure 15 is the partial enlarged view of B location in Fig. 2.
Appended drawing reference: the first wheel disc 1, the second wheel disc 2, air entraining pipe 3, air entraining pipe flange 31, damper tube 4, damper tube protrusion
41, gap 42, bleed disk 5, external member fixed block 51, block 52, pore 53, installation side 54, retainer ring 6, retainer ring head 61, gap 7.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label indicate same or similar element or element with the same or similar functions.Described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion meaning
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention
Protect the limitation of range.
Below by specific embodiment, the present invention is described in further detail.
Specific embodiment:
As shown in Figures 2 and 3, the present invention provides a kind of tubular type compressor rotor air entraining devices of band damping, for drawing
Flow guide flows to core from the wheel hub of the compressor, and the air entraining device is fixed on the first wheel disc 1 of the compressor
And second between wheel disc 2, the air entraining device includes air entraining pipe 3, damper tube 4 and bleed disk 5；
The structure of air entraining pipe 3 is as shown in Figures 4 and 5, and 3 tube wall bottom of air entraining pipe is equipped with air entraining pipe flange 31, damper tube 4
Structure is as shown in FIG. 6 and 7, and damper tube protrusion 41 is coaxially equipped on the tube wall of damper tube 4, and in the present embodiment, air entraining pipe is turned over
Side 31 and the rounded rectangle of damper tube protrusion 41, and the length of air entraining pipe flange 31 and damper tube protrusion 41, width and thickness
All the same, the top of damper tube 4 is lower than the top of air entraining pipe 3, and the top tube wall of damper tube 4 is axially provided with four along damper tube 4
Gap 42, four gaps 42 are circumferential to be evenly arranged on 4 tube wall of damper tube, and damper tube 4 can consume vibrational energy, by damper tube 4
It is mounted in air entraining pipe 3 and vibrational energy of the air entraining device in the course of work can be absorbed, and then reduce vibration；
Air entraining pipe 3 is set in composition air entraining pipe external member on damper tube 4, when the air entraining pipe external member is installed on bleed disk 5
Afterwards, the inner wall of the top surface of air entraining pipe flange 31 and bleed disk 5 is in contact, the bottom surface of air entraining pipe flange 31 and damper tube protrusion 41
Top surface fitting contact, and since air entraining pipe flange 31 is identical with the size of damper tube protrusion 41, the air entraining pipe external member
Bottom forms the round rectangle of an entirety.
For the structure of bleed disk 5 as shown in Fig. 8 to Figure 10, bleed disk 5 is hollow disk, and outer wall is circumferentially evenly equipped with for pacifying
Fill the pore 53 of air entraining pipe 3, it is preferred that the quantity of pore 53 is 20；In the present embodiment, the inner and outer wall of bleed disk 5
On be equipped with lightening recesses, the lightening recesses are arranged between every two adjacent apertures 53, for mitigating the weight of bleed disk 5
Amount, it is preferred that the lightening recesses are arc-shaped, the lightening recesses number when 53 quantity of pore is 20, on bleed disk 5
Amount is 40；
A wherein side end face for bleed disk 5 is circumferential to be equipped with external member fixed block 51, another side end face week of bleed disk 5 in uniform way
To the block 52 for being raised in the side end face is equipped in uniform way, the air entraining pipe external member is axially fixed in pore by external member fixed block 51
On 53, i.e. the axial movement that prevents the air entraining pipe external member of external member fixed block 51, when 53 quantity of pore is 20, external member is solid
The quantity for determining block 51 and block 52 is also 20；In the present embodiment, external member fixed block 51 is L-shaped or J-shaped hook, and
The length of external member fixed block 51 is identical with the aperture of pore 53, and the air entraining pipe is hooked by the bending part of external member fixed block 51
External member guarantees its axial stability to prevent it from moving axially；
The outer rim of the side end face equipped with external member fixed block 51 of bleed disk 5 is equipped with installation side 54, and installation side 54 is in disk
Shape, bleed disk 5 are fixed on the second wheel disc 2 by installing side 54, it is preferred that installation is provided with several through-holes, rim 54 on side 54
It can be bolted on the second wheel disc 2, the through-hole is in staggered distribution with pore 53, to prevent for installing bleed disk 5
Bolt and the air entraining pipe external member are interfered and are collided；
One retainer ring 6 is removably housed, the structure of retainer ring 6 is as shown in figure 11, a side end face of retainer ring 6 on bleed disk 5
It is bonded and contacts with block 52, another side end face is contacted with air entraining pipe flange 31 and 41 fitting of damper tube protrusion respectively, and retainer ring 6 will
The air entraining pipe external member is circumferentially fixed on bleed disk 5；
As shown in FIG. 13 and 14, due to air entraining pipe flange 31 and the rounded rectangle of damper tube protrusion 41, bleed
Pipe flange 31 and the adjacent edge of damper tube protrusion 41 are Bu Tong wide, when installing the air entraining pipe external member, make the bleed pipe sleeve
The air entraining pipe external member is put into pore 53 in the state that the narrow side of part is parallel with 5 axial direction of bleed disk, then by the bleed
Pipe sleeve part rotated ninety degrees, air entraining pipe flange 31 and two broadsides of damper tube protrusion 41 are axial equal with bleed disk 5 at this time
Row, and there are also certain distances for the side broadside and block 52 close to block 52, install retainer ring 6 at this time, the thickness of retainer ring 6 compensates for
The distance realizes the air entraining pipe external member along itself circumferential direction so that the air entraining pipe external member does not have space to carry out rotation
It is fixed.
As shown in figure 12, retainer ring 6 is equipped with and is raised in the retainer ring head 61 of 6 end face of retainer ring in the present embodiment, in the present embodiment,
Retainer ring head 61 is along the axial raised convex block of retainer ring 6, and quantity is two, the length of the distance between retainer ring head 61 and block 52
Identical, matching with block 52 keeps retainer ring 6 circumferentially fixed along bleed disk 5；
As shown in figure 15, after retainer ring 6 is mounted on bleed disk 5, since retainer ring head 61 and block 52 are along bleed disk 5
Axial protrusion, therefore the two can interfere mutually, and since the distance between retainer ring head 61 is identical with the length of block 52,
Therefore block 52 is just clipped in the middle by two retainer ring heads 61, and the movement of retainer ring 6 is prevented with this.
The erection sequence of the air entraining device is as follows:
Damper tube 4 is inserted into below air entraining pipe 3, guarantee after assembly the broadside of air entraining pipe flange 31 and damper tube protrusion 41 with
Broadside alignment, narrow side are aligned with narrow side, form air entraining pipe external member；
It is inserted into from 5 core of bleed disk by the air entraining pipe external member, guarantees that the narrow side of air entraining pipe 3 and damper tube 4 is flat when insertion
Row is in the axial direction of bleed disk 5, and after the air entraining pipe external member is fully inserted into bleed disk 5, the air entraining pipe external member is rotated 90
Degree；
After all the air entraining pipe external member is installed, it is packed into retainer ring 6 from 5 core of bleed disk, retainer ring head 61, which blocks, appoints
One block 52.
As shown in figure 3, the air entraining device is bolted on the second wheel disc 2, the second wheel disc 2 and the first wheel disc 1
Between equally mutually fixed by bolt, at work, gas enters the bleed of the air entraining device by gap 7 to compressor rotor
Pipe 3 guides air-flow by air entraining pipe 3.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (6)
1. a kind of tubular type compressor rotor air entraining device of band damping, for guiding air-flow to flow to disk from the wheel hub of the compressor
The heart, the air entraining device are fixed between the first wheel disc (1) of the compressor and the second wheel disc (2), it is characterised in that:
The air entraining device includes air entraining pipe (3), damper tube (4) and bleed disk (5)；
Air entraining pipe (3) tube wall bottom is equipped with air entraining pipe flange (31), and damper tube protrusion is coaxially equipped on the tube wall of damper tube (4)
(41), air entraining pipe (3) is set in composition air entraining pipe external member, the top surface of air entraining pipe flange (31) and bleed disk (5) on damper tube (4)
It is in contact, the top surface of the bottom surface of air entraining pipe flange (31) and damper tube raised (41) is bonded contact；
Bleed disk (5) is hollow disk, and outer wall is circumferentially evenly equipped with the pore (53) for installing air entraining pipe (3), bleed disk (5)
A wherein side end face it is circumferential be equipped with external member fixed block (51) in uniform way, external member fixed block (51) is axial by the air entraining pipe external member
It is fixed on pore (53), another side end face of bleed disk (5) is circumferential to be equipped with the block (52) for being raised in the side end face in uniform way；
External member fixed block (51) is L-shaped or J-shaped hook, and the aperture phase of the length of external member fixed block (51) and pore (53)
Together；
Retainer ring (6) removably are housed on bleed disk (5), a side end face of retainer ring (6) and block (52) fitting contact, the other side
End face is contacted with air entraining pipe flange (31) and damper tube raised (41) fitting respectively, and retainer ring (6) is all by the air entraining pipe external member
To being fixed on bleed disk (5)；
Retainer ring (6) is equipped with the retainer ring head (61) for being raised in retainer ring (6) end face, and retainer ring head (61) and block (52), which match, makes card
It is circumferentially fixed along bleed disk (5) to enclose (6).
2. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that: bleed disk (5)
The side end face equipped with external member fixed block (51) outer rim be equipped with installation side (54), installation side (54) it is in disk form, bleed disk
(5) it is fixed on the second wheel disc (2) by installing side (54).
3. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that: air entraining pipe flange
(31) identical with the rounded rectangle of damper tube raised (41) and the size of the two.
4. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that: on retainer ring (6)
If there are two retainer ring head (61), retainer ring head (61) be along retainer ring (6) axial raised convex block, the distance between retainer ring head (61) and
The length of block (52) is identical.
5. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that: damper tube (4)
Top tube wall be axially provided with four gaps (42) along damper tube (4), which is circumferentially evenly arranged on damper tube (4) pipe
On wall.
6. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that: bleed disk (5)
Inner and outer wall on be equipped with lightening recesses, the lightening recesses are arranged between adjacent apertures (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226955.2A CN107023394B (en) | 2017-04-07 | 2017-04-07 | Tubular type compressor rotor air entraining device with damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710226955.2A CN107023394B (en) | 2017-04-07 | 2017-04-07 | Tubular type compressor rotor air entraining device with damping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107023394A CN107023394A (en) | 2017-08-08 |
| CN107023394B true CN107023394B (en) | 2019-03-22 |
Family
ID=59528159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710226955.2A Active CN107023394B (en) | 2017-04-07 | 2017-04-07 | Tubular type compressor rotor air entraining device with damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107023394B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3971389A1 (en) * | 2020-09-17 | 2022-03-23 | Raytheon Technologies Corporation | Anti-vortex tube retaining ring and bore basket |
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| US10774742B2 (en) * | 2018-03-21 | 2020-09-15 | Raytheon Technologies Corporation | Flared anti-vortex tube rotor insert |
| FR3081027B1 (en) * | 2018-05-09 | 2020-10-02 | Safran Aircraft Engines | TURBOMACHINE INCLUDING AN AIR TAKE-OFF CIRCUIT |
| CN112503029A (en) * | 2019-09-16 | 2021-03-16 | 中国航发商用航空发动机有限责任公司 | Aircraft engine compressor and turbine reducing assembly |
| CN111379736B (en) * | 2020-04-03 | 2021-09-03 | 中国航发沈阳发动机研究所 | Air entraining structure of air compressor |
| CN112178323B (en) * | 2020-09-21 | 2022-05-06 | 中国航发沈阳发动机研究所 | Self-locking air conduit |
| CN114542641B (en) * | 2020-11-24 | 2024-04-05 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aeroengine |
| CN114542640B (en) * | 2020-11-24 | 2024-04-05 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aeroengine |
| CN113847280B (en) * | 2021-10-10 | 2024-08-02 | 中国航发沈阳发动机研究所 | Interstage air entraining structure of compressor rotor |
| CN114109511B (en) * | 2021-11-12 | 2024-06-18 | 中国航发沈阳发动机研究所 | Novel disk core connection structure and double-radial-plate turbine disk with same |
| CN114776927B (en) * | 2022-04-16 | 2024-04-09 | 中国航发沈阳发动机研究所 | Damping vibration attenuation structure of air guide pipe of aeroengine |
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| CN107023394A (en) | 2017-08-08 |
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