CN105317560B - A kind of support case internal ring dome structure - Google Patents
A kind of support case internal ring dome structure Download PDFInfo
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- CN105317560B CN105317560B CN201510259417.4A CN201510259417A CN105317560B CN 105317560 B CN105317560 B CN 105317560B CN 201510259417 A CN201510259417 A CN 201510259417A CN 105317560 B CN105317560 B CN 105317560B
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of support case internal ring dome structure, including first half installation side, first half, changeover portion of transferring, catch, block, assembly technology inclined-plane, ribs, grab, concave surface are later half, later half installation side, block internal diameter, grab external diameter, first half internal diameter, elastic reinforcement muscle, elastic ring allow groove；Trouserss are designed using a point half structure in front and back, point subluxation is set at a plate thickness maximum point T, first half and later half generally tubular construction, and escape groove is opened at support plate, switching changeover portion increases ribs and elastic reinforcement muscle in inner surface, divide and bridging arrangement is adopted at half, design radial direction catch, axial limiting block in first half, and assembly technology inclined-plane, it is later half to be provided with avoidance block, avoid block and carry concave surface and grab, block internal diameter and first half internal diameter are less than grab external diameter.Advantages of the present invention：Structure reliability, assembling are simple, can realize that reducing air-flow separates and reduce passages losses, while forming heat-insulation chamber, plays heat-blocking action to inner chamber.
Description
Technical field
The present invention relates to the trouserss of the support case pipes' analysis of gas turbine, aero-engine and heat shield design neck
Domain, more particularly to a kind of support case internal ring dome structure.
Background technology
Support case is between low-pressure turbine exit and spout afterwards, there is provided the gas circuit of a transition, but also props up for rotor
Hold and install there is provided a framework with electromotor rear portion, its most basic pneumatic requirement is to provide one without separating, and has minimum damage
The combustion gas runner of mistake, while making at framework inner chamber temperature in the reasonable scope, it is ensured that interior support and lubricating system steady operation.
Therefore, more and more higher is required with being connected transition and interior outer flow passage type face to turbine runner with rear housing load-bearing frame inner flow passage,
Simultaneously with the lifting of electromotor and gas turbine performance, the inlet temperature of turbine and delivery temperature are improved constantly, therefore to holding
Power framework internal ring pipes' analysis type and reduction impact of the runner combustion gas to inner chamber temperature propose requirements at the higher level.
After at present, support case framework mainly using welding and casts manufacture, typically by internal ring, outer shroud, support plate, interior installation
Side, outer installation side, inner chamber supporting system composition, support plate is circumferential to be circumferentially symmetrically or non-symmetrically distributed by certain amount, internal ring and outer
Ring surface meets electromotor stream requirement simultaneously as pipes' analysis, and with requiring to improve, inner ring type face cannot meet electromotor
Can require, and higher temperature cannot be born, more than 650 DEG C of wall, play to heat-blocking action in ring cavity, need that invention is a kind of to tie
Structure is simple, easy for installation, the runner trouserss of dependable performance, meets above-mentioned requirements.
Wish a kind of technical scheme to overcome or at least mitigate at least one drawbacks described above of prior art.
The content of the invention
The purpose of the present invention is that it is whole that spy provides a kind of support case internal ring to meet runner performance and inner chamber thermal insulation requirement
Stream cover structure.
The invention provides a kind of support case internal ring dome structure, it is characterised in that：Described support case internal ring
Dome structure, including first half installation side, first half, changeover portion of transferring, catch, block, assembly technology inclined-plane, ribs, grab,
Concave surface, later half, later half installation side, block internal diameter, grab external diameter, first half internal diameter, elastic reinforcement muscle, elastic ring allow groove；
Trouserss are designed using a point half structure in front and back, and a point subluxation is set at a plate thickness maximum point T, first half and rear semi-monolithic
For tubular construction, escape groove at support plate, is opened, switching changeover portion increases ribs and elastic reinforcement muscle in inner surface, divide
Bridging arrangement, designs radial direction catch, axial limiting block, and assembly technology inclined-plane in first half, later half to be provided with avoidance block, avoids
Block carries concave surface and grab, and in order to improve the structural stability and rigidity of lap-joint, block internal diameter and first half internal diameter are less than card
Hook external diameter, it is ensured that grab external diameter has tightness with first half internal diameter after assembling；
The first half of trouserss first half is installed and is adjacent to when installing before with casing internal ring, is compressed using screw bolt and nut, is mounted in
In trouserss are later half, grab and technique contact of incline plane, later half deformation press-in, when axial displacement is more than block length, outside grab
Footpath is contacting abutting with first half internal diameter, and later half installation is adjacent to when installing after with casing internal ring, screw in compression.
Heat-insulation chamber be increased between trouserss and casing internal ring, heat-blocking action is served to inner chamber.
Advantages of the present invention：
Support case internal ring dome structure of the present invention, structure reliability, assembling are simple, can realize reducing air-flow
Passages losses are separated and reduced, while forming heat-insulation chamber, heat-blocking action is played to inner chamber, gas turbine load is can be widely used in
In the rectification and Design on thermal insulation of casing internal ring.
Description of the drawings
Below in conjunction with the accompanying drawings and embodiment the present invention is further detailed explanation：
Fig. 1 is support case internal ring dome structure overall schematic；
Allow slot structure schematic diagrams of the Fig. 2 for support case internal ring dome structure；
Fig. 3 is support case internal ring dome structure partial schematic diagram；
In figure, 1- first halfs install side；2- first halfs；2a- switching changeover portions；3- catch；4- blocks；5- assembly technologies inclined-plane；
6- ribs；7- grabs；8- concave surfaces；9- is later half；The later half installation sides of 10-；11- block internal diameters；12- grab external diameters；In 13- first halfs
Footpath；14- elastic reinforcement muscle；15- elastic rings；16- allows groove, 17- casings, 18- bolt I, 19- bolts, 20- heat-insulation chambers.
Specific embodiment
Embodiment 1
Present embodiments provide a kind of support case internal ring dome structure, it is characterised in that：In described support case
Ring dome structure, including first half installation side, first half, changeover portion of transferring, catch, block, assembly technology inclined-plane, ribs, card
Hook, concave surface are later half, later half installation side, block internal diameter, grab external diameter, first half internal diameter, elastic reinforcement muscle, elastic ring, allow groove；
Trouserss are designed using a point half structure in front and back, and a point subluxation is set at a plate thickness maximum point T, first half and rear semi-monolithic
For tubular construction, escape groove at support plate, is opened, switching changeover portion increases ribs and elastic reinforcement muscle in inner surface, divide
Bridging arrangement, designs radial direction catch, axial limiting block, and assembly technology inclined-plane in first half, later half to be provided with avoidance block, avoids
Block carries concave surface and grab, and in order to improve the structural stability and rigidity of lap-joint, block internal diameter and first half internal diameter are less than card
Hook external diameter, it is ensured that grab external diameter has tightness with first half internal diameter after assembling；
The first half of trouserss first half is installed and is adjacent to when installing before with casing internal ring, is compressed using screw bolt and nut, is mounted in
In trouserss are later half, grab and technique contact of incline plane, later half deformation press-in, when axial displacement is more than block length, outside grab
Footpath is contacting abutting with first half internal diameter, and later half installation is adjacent to when installing after with casing internal ring, screw in compression.
Heat-insulation chamber be increased between trouserss and casing internal ring, heat-blocking action is served to inner chamber.
Embodiment 2
Present embodiments provide a kind of support case internal ring dome structure, it is characterised in that：In described support case
Ring dome structure, including first half installation side, first half, changeover portion of transferring, catch, block, assembly technology inclined-plane, ribs, card
Hook, concave surface are later half, later half installation side, block internal diameter, grab external diameter, first half internal diameter, elastic reinforcement muscle, elastic ring, allow groove；
Trouserss are designed using a point half structure in front and back, and a point subluxation is set at a plate thickness maximum point T, first half and rear semi-monolithic
For tubular construction, escape groove at support plate, is opened, switching changeover portion divides and adopts at half in inner surface increase-ribs and-elastic reinforcement muscle
With bridging arrangement, radial direction catch, axial limiting block, and assembly technology inclined-plane are designed in first half, it is later half to be provided with avoidance block, keep away
Allow block with concave surface and grab, in order to improve the structural stability and rigidity of lap-joint, block internal diameter and first half internal diameter are less than
Grab external diameter, it is ensured that grab external diameter has tightness with first half internal diameter after assembling；
The first half of trouserss first half is installed and is adjacent to when installing before with casing internal ring, is compressed using screw bolt and nut, is mounted in
In trouserss are later half, grab and technique contact of incline plane, later half deformation press-in, when axial displacement is more than block length, outside grab
Footpath is contacting abutting with first half internal diameter, and later half installation is adjacent to when installing after with casing internal ring, screw in compression.
Claims (2)
1. a kind of support case internal ring dome structure, it is characterised in that：Described support case internal ring dome structure, including
First half installs side, and first half, changeover portion of transferring, catch, block, assembly technology inclined-plane, ribs, grab, concave surface are later half, later half
Side is installed, block internal diameter, grab external diameter, first half internal diameter, elastic reinforcement muscle, elastic ring allow groove；
Trouserss are designed using a point half structure in front and back, and a point subluxation is set at a plate thickness maximum point T, first half and later half generally cylinder
Shape structure, opens escape groove at support plate, switching changeover portion increases ribs and elastic reinforcement muscle in inner surface, divides at half using overlap joint
Structure, designs radial direction catch, axial limiting block, and assembly technology inclined-plane in first half, later half to be provided with avoidance block, avoids block
With concave surface and grab, block internal diameter and first half internal diameter are less than grab external diameter, it is ensured that after assembling, grab external diameter is deposited with first half internal diameter
In tightness；
The first half of trouserss first half is installed and is adjacent to when installing before with casing internal ring, is compressed using screw bolt and nut, is mounted in rectification
In cover is later half, grab and technique contact of incline plane, later half deformation press-in, when axial displacement is more than block length, grab external diameter with
First half internal diameter is pushed against in contact, and later half installation is adjacent to when installing after with casing internal ring, screw in compression.
2. according to the support case internal ring dome structure described in claim 1, it is characterised in that：In trouserss and casing internal ring
Between increased heat-insulation chamber, heat-blocking action is served to inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259417.4A CN105317560B (en) | 2015-05-19 | 2015-05-19 | A kind of support case internal ring dome structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259417.4A CN105317560B (en) | 2015-05-19 | 2015-05-19 | A kind of support case internal ring dome structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105317560A CN105317560A (en) | 2016-02-10 |
| CN105317560B true CN105317560B (en) | 2017-04-05 |
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| CN201510259417.4A Active CN105317560B (en) | 2015-05-19 | 2015-05-19 | A kind of support case internal ring dome structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640233B (en) * | 2017-01-23 | 2019-08-23 | 中国航发沈阳发动机研究所 | A kind of heat-insulated runner of turbine support case and the engine with it |
| CN107246326B (en) * | 2017-07-05 | 2018-12-14 | 中国科学院工程热物理研究所 | A kind of engine oil supporting plate case structure and the engine comprising the structure |
| CN110821583B (en) * | 2019-12-05 | 2022-06-17 | 中国航发四川燃气涡轮研究院 | Edge connecting structure of cartridge receiver barrel and cartridge receiver |
| CN115716536B (en) * | 2022-10-25 | 2023-07-21 | 中国航发沈阳发动机研究所 | Thin-wall high-strength inclined support plate bearing frame structure |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110000223A1 (en) * | 2008-02-25 | 2011-01-06 | Volvo Aero Corporation | gas turbine component and a method for producing a gas turbine component |
| US9689312B2 (en) * | 2011-12-22 | 2017-06-27 | Gkn Aerospace Sweden Ab | Gas turbine engine component |
| EP2900973B1 (en) * | 2012-09-28 | 2018-12-12 | United Technologies Corporation | Mid-turbine frame with fairing attachment |
| US9945251B2 (en) * | 2012-12-29 | 2018-04-17 | United Technologies Corporation | Cooling architecture for turbine exhaust case |
| US10294819B2 (en) * | 2012-12-29 | 2019-05-21 | United Technologies Corporation | Multi-piece heat shield |
| EP2938863B1 (en) * | 2012-12-29 | 2019-09-25 | United Technologies Corporation | Mechanical linkage for segmented heat shield |
| CN203113561U (en) * | 2013-01-29 | 2013-08-07 | 楼尚志 | Sealing clamping device for building finishing partition outer opening |
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| CN105317560A (en) | 2016-02-10 |
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