CN206889288U - The low-pressure compressor changed a social system using retired engine - Google Patents
The low-pressure compressor changed a social system using retired engine Download PDFInfo
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- CN206889288U CN206889288U CN201720307591.6U CN201720307591U CN206889288U CN 206889288 U CN206889288 U CN 206889288U CN 201720307591 U CN201720307591 U CN 201720307591U CN 206889288 U CN206889288 U CN 206889288U
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Abstract
A kind of low-pressure compressor changed a social system using retired engine, belong to gas turbine technology field, including inlet casing, low-pressure compressor stator component, low-pressure compressor rotor, the level work blade of low-pressure compressor the 1st 4 is newly designed with the basis of prototype, low-pressure compressor other structures are constant, by redesigning blade type face, on the premise of tenon shape invariance is kept, increase the angle of leaf chord length and axis, and then change the inlet air flow angle for entering stator blade below, reduce air-flow separation, increase low-pressure compressor efficiency, and then improve low-pressure compressor overall pressure tatio, low-pressure compressor steady operation under compared with the prototype more slow-speed of revolution can be made, overall pressure tatio and efficiency on this operating point are improved simultaneously.
Description
Technical field
The utility model belongs to gas turbine technology field, is calmed the anger more particularly to the low pressure changed a social system using retired engine
Machine.
Background technology
With domestic gas turbine industry flourish, the deep application of gas turbine advanced design technology, high-performance,
The gas turbine of high reliability continuously emerges, and the manufacturing cost as core component compressor remains high.At the same time, combustion gas
Turbine product market competition increasingly sharpens, and user requires more and more higher.Gas turbine homogeneity, it is similar and meet user using will
Under conditions of asking, gas turbine price often turns into the sole indicator that can market and user receive.The combustion of existing market sale
Gas-turbine can improve after-sale service and price for repairing, be increased burden to user because manufacturing cost is higher.User has been difficult to connect at present
High gas turbine price is received, market receiving degree is poor.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of low pressure using the transformation of the way of retired engine and calmed the anger
Machine, its brand-new design low-pressure compressor working-blade blade type face on the basis of former retired engine low-pressure compressor, is formed
The bigger working-blade of level pressure ratio, and blade tenon structure is constant, meanwhile, low-pressure compressor other structures are constant, can improve
When efficiency, gas turbine performance can have a distinct increment compressor stagnation pressure relatively compared with the product of power grade.In addition, pass through drop
Low engine speed, ensureing can be in lower working condition reliably working in gas turbine.
The technical scheme of the present utility model used for：The low-pressure compressor changed a social system using retired engine, including air inlet
Casing, low-pressure compressor stator component, low-pressure compressor rotor, are characterized in that：Low-pressure compressor rotor is by the 1st to 4 grade
Working-blade and the 1st to 4 grade of disk composition, the 1st to 4 grade of disk of low-pressure compressor rotor are correspondingly arranged at low-pressure compressor and turned respectively
Below sub 1st to 4 level work blade, each working-blade lower end is provided with swallow-tail form tenon, and tenon turns with low-pressure compressor
Tongue-and-groove connection corresponding to son on the 1st to 4 grade of disk, the level work leaf chord length of low-pressure compressor the 1st to 4 are set with engine axis
There is angle, angle increases along blade direction from blade root to blade tip direction difference.
Low-pressure compressor stator component by the 1st grade of the 1st grade of casing of low-pressure compressor, low-pressure compressor stator casing component,
The 4th grade of the 2nd grade of stator casing component of low-pressure compressor, low-pressure compressor 3rd level stator casing component and low-pressure compressor and go out
Mouth stator casing component composition；Calmed the anger per one-level low-pressure compressor stator casing component by low-pressure compressor stator blade and low pressure
Machine stator casing forms.
Compared with prior art, the beneficial effects of the utility model are：
1. implementation of the present utility model can effectively play increase overall pressure tatio in terms of compressor part, compressor is improved
The effect of efficiency, retired engine low-pressure compressor is directly relatively used in the past, both prevented causes primary move because operating point reduces
The problem of machine low-pressure compressor overall pressure tatio reduces, and efficiency reduces, while gas turbine functional reliability is effectively improved again, increase combustion
The gas-turbine life-span.
Compared with newly design low-pressure compressor, performance is similar with reliable, but the utility model is because of only new development work leaf
Piece, remaining structure directly utilize retired engine resource, effectively reduce manufacturing cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is H-H sectional views in Fig. 1；
Fig. 3 is the level work blade new construction of low-pressure compressor the 1st and prototype architectural difference schematic diagram；
Fig. 4 is Fig. 3 A-A sectional views；
Fig. 5 is Fig. 3 B-B sectional views；
Fig. 6 is Fig. 3 C-C sectional views；
Fig. 7 is D sectional views in Fig. 3；
Reference is as follows：1. inlet casing, 11. adjustable vanes, 2. low-pressure compressor stator components, 21. low pressure pressures
The 1st grade of casing of mechanism of qi, the 1st grade of stator casing component of 22. low-pressure compressors, the 1st grade of stator blade of 221. low-pressure compressors, 222.
The 1st grade of stator casing of low-pressure compressor, the 2nd grade of stator casing component of 23. low-pressure compressors, the 2nd grade of 231. low-pressure compressors are quiet
Blades, the 2nd grade of stator casing of 232. low-pressure compressors, 24. low-pressure compressor 3rd level stator casing components, 241. low pressure pressures
Mechanism of qi 3rd level stator blade, 242. low-pressure compressor 3rd level stator casings, the 4th grade of 25. low-pressure compressors and outlet stator machine
Cartridge component, 3. low-pressure compressor rotors, 31. the 1st level work blades, the 1st grade of disk of 32. low-pressure compressors, 33. the 2nd level works
Blade, the 2nd grade of disk of 34. low-pressure compressors, 35. 3rd level working-blades, 36. low-pressure compressor 3rd level disks, 37. the 4th grades of works
Make blade, the 4th grade of disk of 38. low-pressure compressors.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples.
Embodiment：As shown in figure 1, the utility model is to utilize the low-pressure compressor of the retired engine transformation of the way, including air inlet
Casing 1, low-pressure compressor stator component 2, low-pressure compressor rotor 3, wherein：Low-pressure compressor rotor is by the 1st to 4 level work leaf
Piece（31,33,35,37）With the 1st to 4 grade of disk（32,34,36,38）Composition, the 1st to 4 grade of disk of low-pressure compressor rotor are right respectively
It should be arranged on below the level work blade of low-pressure compressor rotor the 1st to 4, each working-blade lower end is provided with swallow-tail form tenon
Head, the tongue-and-groove connection on tenon the 1st to 4 grade of disk corresponding with low-pressure compressor rotor, low-pressure compressor stator component 2 is by low pressure
The 1st grade of casing 21 of compressor, the 1st grade of stator casing component 22 of low-pressure compressor, the 2nd grade of stator casing component of low-pressure compressor
23, the 4th grade of low-pressure compressor 3rd level stator casing component 24 and low-pressure compressor and outlet stator casing component 25 form, and are
Reduce manufacturing cost, structure and certain retired engine low-pressure compressor structure（Hereinafter referred to as prototype）It is identical, can be complete
Use.
The level work blade of low-pressure compressor the 1st to 4（31,33,35,37）For new design structure, for reduce manufacturing cost and
Functional reliability is improved, low-pressure compressor disk is identical with prototype structure, so new design work blade（31,33,35,
37）Tenon structure is constant, and blade and blade height degree is identical with certain retired engine low-pressure compressor original structure, and leaf chord length is with starting
The angle α of arbor line increases along blade direction compared with prototype, and increased value raises from blade root to blade tip.
When gas turbine works, the more former retired engine working speed of working speed declines 10%, such low-pressure compressor
The exit flow angle α of working-blades at different levels will be unable to be consistent with low-pressure compressor stator blade stagger angle β, can make
Air-flow produces larger separation at stator blade back, and air mass flow can reduce compressor overall pressure tatio and efficiency while reduction.
By changing the angle α of leaf chord length and engine axis, make working-blade exit flow absolute velocity that angle occur
Degree change, is more nearly with stator blade stagger angle β, and stator blade is not likely to produce air-flow separation, improves low-pressure compressor
Efficiency.Simultaneously because the angle α of working-blade chord length and engine axis compared with the increased value of original structure from blade root to blade tip liter
Height, increased blade twist angle, improves low-pressure compressor overall pressure tatio.
By Pneumatic Calculation, in the state of low-pressure compressor working speed 10% is reduced, keep intake air flow basic
Constant, using the low-pressure compressor after changing, overall pressure tatio can improve 14%-16%, and efficiency improves 10-12%.
By Strength co-mputation, low-pressure compressor working-blade root needs to thicken compared with original structure, because tenon structure can not
The angle α of change, low-pressure compressor working-blade root chord length and engine axis is less compared with prototype increase or is basically unchanged,
Using root of blade type face without departing from blade tenon as principle, in view of the separation of root of blade air-flow is insensitive, therefore in proof strength
On the premise of overall pressure tatio and efficiencies can receive.
Installation process of the present utility model is as follows：
First, the 2nd grade of disk 34 of the 1st grade of disk 32 of the low-pressure compressor with preceding axle journal and low compressor is welded together, then
Low-pressure compressor 3rd level disk 36 with rear shaft neck is bolted with it, then the 4th grade of disk 38 of low-pressure compressor is led to it
Bolt connection is crossed, then newly-designed 1-4 level work blades are installed respectively（31,33,35,37）, thus form low pressure pressure
Mechanism of qi rotor 3.
Secondly, the inlet casing 1 with adjustable vane is placed vertically on the table, low-pressure compressor rotor 3 is vertical
Insert in inlet casing 1, axle journal is connected with inlet casing 1 by stick roller bearing before making low-pressure compressor rotor, is set using special
The standby relative distance for ensureing inlet casing 1 and low-pressure compressor rotor 3.
Then, the 1st grade of low-pressure compressor casing 21 is loaded on inlet casing 1 vertically, the 1st grade of stator leaf of low-pressure compressor
Piece component 221 is made up of multiple stator blades, and component is 2 semi-circular structures, by low-pressure compressor the 1st grade of stator vane assembly point
Do not insert between low-pressure compressor the 1st, 2 level work blades, and determined by the annular groove on the 1st grade of casing 21 of low-pressure compressor
Position.
Afterwards, the 1st grade of stator casing 222 of low-pressure compressor is filled straight down, is enclosed on the 1st grade of stator leaf of low-pressure compressor
On piece component 221, positioned by the outer surface of stator vane assembly 221.Similarly, the 2nd grade of stator blade group of low-pressure compressor is filled
Part 231, the 2nd grade of stator casing 232 of low-pressure compressor, low-pressure compressor 3rd level stator vane assembly 241, low-pressure compressor the 3rd
Level stator casing 242.
Finally, the 4th grade of stator of low-pressure compressor and outlet casing component 25 are inserted vertically into low-pressure compressor 3rd level stator
In rabbet groove in casing 242, ensure centering.
Utility model works principle：
The utility model new design level work blade of low pressure the 1st to 4 on the basis of former retired low-pressure compressor（31,33,
35,37）, working speed reduce by 10% in the state of, make air from inlet casing 1 by import adjustable vane 11 axially into
Afterwards after the level work blade 31 of low-pressure compressor the 1st, the absolute velocity C2 of air direction changes, and is changed to C1, speed C1's
Direction is basically identical with stagger angle β in the middle part of corresponding 1st grade of stator blade, keeps most of area along blade radial direction
Air-flow separation does not occur for domain.
After air is by the 1st grade of stator vane assembly 221 of low-pressure compressor, into the level work blade of low-pressure compressor the 2nd
33, similarly, by changing the angle α of the level work leaf chord length of low-pressure compressor the 2nd and engine axis, make vane inlet air-flow
It is more smooth to enter the 2nd level work blade, avoid mass air flow from separating, improve compressor operating efficiency.
Air flows into the 4th grade of stator of low-pressure compressor and outlet casing 25 by the level work blade 37 of low-pressure compressor the 4th
Axially discharge afterwards.
Further, since the angle α of low-pressure compressor 1-4 level works leaf chord length and engine axis is compared with original structure increase
And increase from blade root to blade tip direction difference, blade twist angle is passed air through compared with original structure increase after working-blade absolutely
To the increase of speed circumferential component variable quantity, single-stage compressor pressure ratio is improved, and then add low-pressure compressor overall pressure tatio.
Claims (4)
1. a kind of low-pressure compressor changed a social system using retired engine, including inlet casing, low-pressure compressor stator component, low pressure
Compressor rotor, it is characterised in that：Low-pressure compressor rotor is made up of the 1st to 4 level work blade and the 1st to 4 grade of disk, low pressure pressure
1st to 4 grade of disk of mechanism of qi rotor is correspondingly arranged at below the level work blade of low-pressure compressor rotor the 1st to 4 respectively, each work
Blade lower end is provided with swallow-tail form tenon, the tongue-and-groove connection on tenon the 1st to 4 grade of disk corresponding with low-pressure compressor rotor,
The level work leaf chord length of low-pressure compressor the 1st to 4 is provided with angle with engine axis, and angle is along blade direction from blade root to leaf
Sharp direction difference increase.
A kind of 2. low-pressure compressor changed a social system using retired engine according to claim 1, it is characterised in that：Low pressure pressure
Mechanism of qi stator component is by the 1st grade of the 1st grade of casing of low-pressure compressor, low-pressure compressor stator casing component, the 2nd grade of low-pressure compressor
The 4th grade of stator casing component, low-pressure compressor 3rd level stator casing component and low-pressure compressor and outlet stator casing component group
Into.
A kind of 3. low-pressure compressor changed a social system using retired engine according to claim 2, it is characterised in that：Per one-level
Low-pressure compressor stator casing component includes low-pressure compressor stator blade and low-pressure compressor stator casing.
A kind of 4. low-pressure compressor changed a social system using retired engine according to claim 3, it is characterised in that：Enter mechanism of qi
Casket is arranged on low-pressure compressor front end, installs adjustable vane behind inlet casing, low-pressure compressor is connected behind adjustable vane
1st grade of casing, annular groove is provided with the 1st grade of casing of low-pressure compressor, the 1st grade of casing of low-pressure compressor is vertically arranged into mechanism of qi
Inside casket, the 1st grade of stator blade of low-pressure compressor is made up of multiple stator blades, by the 1st grade of stator blade peace of low-pressure compressor
Fixed between low-pressure compressor the 1st, 2 level work blades, and by the annular groove on the 1st grade of casing of low-pressure compressor, low pressure
Profile For Compressor Stator component is arranged alternately with the working-blade of low-pressure compressor rotor and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720307591.6U CN206889288U (en) | 2017-03-28 | 2017-03-28 | The low-pressure compressor changed a social system using retired engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720307591.6U CN206889288U (en) | 2017-03-28 | 2017-03-28 | The low-pressure compressor changed a social system using retired engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889288U true CN206889288U (en) | 2018-01-16 |
Family
ID=61329201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720307591.6U Active CN206889288U (en) | 2017-03-28 | 2017-03-28 | The low-pressure compressor changed a social system using retired engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889288U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129264A (en) * | 2018-09-05 | 2019-01-04 | 中国航发动力股份有限公司 | A kind of low-pressure compressor primary rotor leaf decomposition adapter and application method |
| CN113217418A (en) * | 2021-06-29 | 2021-08-06 | 中国科学院工程热物理研究所 | Pneumatic appearance structure of multistage axial compressor |
-
2017
- 2017-03-28 CN CN201720307591.6U patent/CN206889288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129264A (en) * | 2018-09-05 | 2019-01-04 | 中国航发动力股份有限公司 | A kind of low-pressure compressor primary rotor leaf decomposition adapter and application method |
| CN113217418A (en) * | 2021-06-29 | 2021-08-06 | 中国科学院工程热物理研究所 | Pneumatic appearance structure of multistage axial compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200312 Address after: Room 223, building 2, No. 1, Shuanghu North Road, Xiang'an District, Xiamen City, Fujian Province Patentee after: Xiamen zhongguanneng Gas Turbine Technology Co., Ltd Address before: 110043 Liaoning Province, Shenyang City District Li neighbors Road No. 11 North Lane Patentee before: Shenyang Guanneng Gas Turbine Technology Co.,Ltd. |