CN104596723B - The manufacture method of aerodynamic experiment diffuser - Google Patents
The manufacture method of aerodynamic experiment diffuser Download PDFInfo
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- CN104596723B CN104596723B CN201510044240.6A CN201510044240A CN104596723B CN 104596723 B CN104596723 B CN 104596723B CN 201510044240 A CN201510044240 A CN 201510044240A CN 104596723 B CN104596723 B CN 104596723B
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- diffuser
- outer cylinder
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- inner barrel
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Abstract
The invention discloses a kind of manufacture method of aerodynamic experiment diffuser, belong to high temperature, hypersonic free air facility design and manufacturing technology field.A kind of manufacture method that can have and hand over improve product quality and the fast aerodynamic experiment diffuser of assembling speed is provided.Described manufacture method is made flange part, the chamfering bit location hole on outer cylinder body blank using first being processed on flange blank with inner barrel positioning step and outer cylinder body positioning step, then inside and outside cylinder part is rolled into again, then it is the base dress inside and outside cylinder part of assembling with described inner barrel positioning step and outer cylinder body positioning step, and the cavity thickness between inside and outside cylinder part is controlled by spacer ferrule, reach the purpose of improve product quality and dress dress speed.
Description
Technical field
The present invention relates to a kind of manufacture method, more particularly, to a kind of manufacture method of aerodynamic experiment diffuser,
Belong to high temperature, hypersonic free air facility design and manufacturing technology field.
Background technology
Diffusion step-down section be carry out in high temperature, hypersonic aerodynamic experiment complexes indispensable one it is special
Device, after it is located at test section, is mainly diffused step-down and the effect of reduction of speed to the high pressure after experiment, high velocity air.Its knot
Structure is double-layered pressure-bearing structure, and interlayer cavity is the passage of recirculated cooling water, it is therefore intended that takes away the heat transmitted from inner housing, protects
The temperature rise of inner housing is demonstrate,proved within the specific limits, so as to ensure the work that diffuser can be safe and reliable.Its shell body is primarily subjected to folder
The internal pressure of layer cooling water, its inner housing bears the external pressure of cooling water in interlayer before vacuum valve is opened, and is born after opening vacuum valve
External pressure can increase suddenly, inner housing can suddenly from bearing external pressure and be changed into hold when high pressure, high speed and hot test air-flow pass through
By internal pressure, and bear high temperature gas flow effect.Therefore, the working condition of diffuser inner housing is extremely complex.China is in recent years
Industry in fields such as Aero-Space achieves remarkable achievement, and the acquirement of these achievements be unable to do without carries out high temperature, ultrasound high
Fast aerodynamic experiment, therefore, researching high-temperature, the manufacture engineering method of the diffusion step-down section of hypersonic aerodynamic experiment have weight
Big meaning.
Existing whole diffusion step-down section is that diffuser is formed by connecting by multistage straight barrel and two pieces conic tube by flange,
Each section cylinder is made up of the flange of inside and outside two-layer housing and two ends.There is the thick cavitys of about 5mm, shell body between inside and outside housing
On be dispersed with water inlet pipe and water outlet pipe.Cylinder shell body is the thick Q235 carbon steel materials of 10mm, and inner casing and flange are 304 stainless steels
Material, inner casing body thickness is 8mm.The cavity thick due to being provided with 5mm between inside and outside housing, so as to cause assembling speed very slow
Slowly, while when the shell blank manufacturing quality of single-piece is poor, the cavity of the thickness cannot often ensure.And in order to ensure
Each section of cylinder stated is not in be destroyed because of deformation during high pressure, high speed and hot test, in the prior art generally
What can also be spaced on outer barrel skin is drilled with some plug welding holes, by described plug welding hole that inside and outside housing plug welding is integral.Together
Sample, due to about 5mm thickness cavity presence, each plug welding hole by it is interior carry out plug welding outward when inner housing can be caused to deform, outward
Plug welding surface on housing is extremely irregular, and presentation quality cannot ensure.
The content of the invention
The technical problems to be solved by the invention are：Offer is a kind of friendship improve product quality and the fast sky of assembling speed
The manufacture method of aerodynamic test diffuser.
For the technical scheme that solution above-mentioned technical problem is used is：A kind of manufacturer of aerodynamic experiment diffuser
Method, comprises the following steps,
A, get the raw materials ready and part makes, first according to each detail drawing of the diffuser, blanking prepares flange blank, interior respectively
Cylinder blank, outer cylinder body blank and spacer ferrule, and the chamfering bit location hole on described outer cylinder body blank；Then by flange blank
The flange part with inner barrel positioning step and outer cylinder body positioning step is processed into stand-by, by inner barrel blank and outer cylinder body base
Material rolls into inner barrel part respectively and outer cylinder body part is stand-by,
B, part make, by institute on the basis of inner barrel positioning step and outer cylinder body positioning step on the flange part
The inner barrel part stated and outer cylinder body component assembly include the diffuser element of the flange part into two ends, and point is welded
Gu；Then again by the described location hole of described spacer ferrule insertion, and by the front end of the spacer ferrule and the inner cylinder
The respective wall millet cake of body part welds solid, the rear end of the spacer ferrule is firm with the madial wall spot welding of the location hole, system
Into diffuser element blank；Described diffuser element blank is welded by the order of first location hole welding rear flange connection weldering finally
Connect diffuser element,
C, the water pressure test, first carry out hydraulic pressure examination to the diffuser element that step b makes by 1.25 times of design requirement pressure
Test, it is qualified after carry out again rust cleaning polishing anti-corrosion after treat general assembly,
D, general assembly, diffuser element obtained in step c is finally assembled into the diffuser of completion, is completed once
The making work of the aerodynamic experiment diffuser.
The beneficial effects of the invention are as follows：Due to being provided with inner barrel positioning step and outer cylinder body on described flange part
The thickness requirement of positioning step, 5 ㎜ between inner barrel and outer cylinder body when so both ensure that assembling or so, simultaneously as
With described inner barrel positioning step and outer cylinder body positioning step, can also effectively improve assembling speed and effectively rectify
There are some defects in quality in coiling process in just inside and outside cylinder.And described positioning is first inserted in described plug welding hole
Short tube, is then connected as an entirety by described inner barrel and outer cylinder body by described spacer ferrule again, i.e., first will be described
One end of the insertion location hole of spacer ferrule welds with inner barrel, then by determining on the other end of spacer ferrule and the shell body
Position eyelet welding jail, so, in not only can effectively overcoming welding process, intensity defect that inside and outside cylinder is produced by deformation and
Open defect, reaches the purpose for effectively improving product quality, but also can effectively improve speed of welding.
Be further, in the flange part described in processing, while on the axially inner side wall of the flange part and
The welding groove for welding inner barrel and outer cylinder body is processed in radial sidewalls.
It is further, in step b, in the diffuser element described in making, while the two of the diffuser element
End welding equipment water inlet pipe and outlet pipe, the water inlet pipe and the outlet pipe are refilled after the completion of flange connection weldering and location hole welding
With welding.
It is further in step b, to be welded with described inner barrel part and location hole by described spacer ferrule
When connecing, while the inside of the spacer ferrule is filled up to by built-up welding being flushed with the lateral wall of outer cylinder body part.
It is further, when outer cylinder body part is made, using the board making of at least thick 4 ㎜s bigger than design thickness, and
After the diffuser element welding equipment, protruded when removing spacer ferrule inside described in built-up welding by turning after the water pressure test is qualified
Weldering height and/or overlap.
It is further, in step a, when blanking prepares inner barrel blank and outer cylinder body blank, first using computer setting-out
Typesetting, then using based automatic flame cutting device oxygen-acetylene cutting.
Brief description of the drawings
Fig. 1 be the present invention relates to inside and outside cylinder and flange part attachment structure schematic diagram；
Fig. 2 be the present invention relates to inside and outside cylinder and spacer ferrule attachment structure schematic diagram.
Marked in figure：Spacer ferrule 1, location hole 2, inner barrel positioning step 3, outer cylinder body positioning step 4, flange part
5th, inner barrel part 6, outer cylinder body part 7, welding groove 8.
Specific embodiment
It is as shown in Figure 1 and Figure 2 that a kind of of present invention offer can have friendship improve product quality and the fast air of assembling speed dynamic
The manufacture method of power experiment diffuser.Described manufacture method is comprised the following steps,
A, get the raw materials ready and part makes, first according to each detail drawing of the diffuser, blanking prepares flange blank, interior respectively
Cylinder blank, outer cylinder body blank and spacer ferrule 1, and the chamfering bit location hole 2 on described outer cylinder body blank；Then by flange base
It is stand-by that material is processed into the flange part 5 with inner barrel positioning step 3 and outer cylinder body positioning step 4, by inner barrel blank and outer
Cylinder blank rolls into inner barrel part 6 respectively and outer cylinder body part 7 is stand-by,
B, part make, on the basis of inner barrel positioning step 3 and outer cylinder body positioning step 4 on the flange part 5
Described inner barrel part 6 and outer cylinder body part 7 are assembled into the diffuser element that two ends include the flange part 5,
And spot welding is firm；Then in described spacer ferrule 1 being inserted into described location hole 2 again, and by the front end of the spacer ferrule 1
Welded with the respective wall millet cake of the inner barrel part 6 it is solid, by the inner side of the rear end of the spacer ferrule 1 and the location hole 2
Wall spot welding firmly, is made diffuser element blank；Finally by the order of first location hole welding rear flange connection weldering by described expansion
Depressor part blank welds diffuser element,
C, the water pressure test, first carry out hydraulic pressure examination to the diffuser element that step b makes by 1.25 times of design requirement pressure
Test, it is qualified after carry out again rust cleaning polishing anti-corrosion after treat general assembly,
D, general assembly, diffuser element obtained in step c is finally assembled into the diffuser of completion, is completed once
The making work of the aerodynamic experiment diffuser.
Due to being provided with inner barrel positioning step 3 and outer cylinder body positioning step 4 on described flange part 5, so both
The thickness requirement of 5 ㎜ between inner barrel and outer cylinder body when ensure that assembling or so, simultaneously as with described inner barrel
Positioning step 3 and outer cylinder body positioning step 4, can also effectively improve assembling speed and effectively correct inside and outside cylinder in volume
Occur some defects in quality during system.And described spacer ferrule 1 is first inserted in described plug welding hole, then again will
Described inner barrel and outer cylinder body are connected as an entirety by described spacer ferrule 1, i.e., first by the slotting of the spacer ferrule 1
The one end and inner barrel for entering location hole are welded, then the other end of spacer ferrule 1 is welded with the location hole on the shell body, this
Sample, not only can effectively overcome in welding process, and intensity defect and open defect that inside and outside cylinder is produced by deformation reach
To the purpose for effectively improving product quality, but also can effectively improve speed of welding.
In above-mentioned implementation method, in order to further improve the welding matter of each section of diffuser element for constituting the diffuser
The welding quality of amount, especially inner barrel part 6 and outer cylinder body part 7 and the part 5 of method half, in the flange part 5 described in processing
When, while being processed on the axially inner side wall of the flange part 5 and in radial sidewalls for welding inner barrel and outer cylinder body
Welding groove 8.And the flange part 5 is welded with described inner barrel part 6 and described outer cylinder body part 7 for convenience,
And the welding that spacer ferrule is welded with described inner barrel part 6 and described outer cylinder body part 7 for convenience, in step b,
In the diffuser element described in making, while in the two ends welding equipment water inlet pipe and outlet pipe of the diffuser element, it is described enter
Water pipe and the outlet pipe reassemble welding after the completion of flange connection weldering and location hole welding.
And in order to improve the presentation quality of each section of diffuser element, the especially presentation quality of plug welding, in step b,
When described spacer ferrule 1 is welded with described inner barrel part 6 and location hole 2, while by the spacer ferrule 1
Inside be filled up to by built-up welding and flushed with the lateral wall of outer cylinder body part 7；And make outer cylinder body part 7 when, using than
The board making of big at least thick 4 ㎜ of design thickness, and after the diffuser element welding equipment, turning is passed through after the water pressure test is qualified
The weldering protruded is high when removing 1 inside of spacer ferrule described in built-up welding and/or overlap.
With reference to prior art, in step a, when blanking prepares inner barrel blank and outer cylinder body blank, computer is also first used
Setting-out typesetting, then carries out blanking using based automatic flame cutting device gas cutting.So, blanking quality can both be ensured, again can be with
Improve blanking progress.
Claims (6)
1. a kind of manufacture method of aerodynamic experiment diffuser, it is characterised in that：Comprise the following steps,
A, get the raw materials ready and part makes, first according to each detail drawing of the diffuser, blanking prepares flange blank, inner barrel respectively
Blank, outer cylinder body blank and spacer ferrule (1), and the chamfering bit location hole (2) on described outer cylinder body blank；Then by flange base
It is stand-by that material is processed into the flange part (5) with inner barrel positioning step (3) and outer cylinder body positioning step (4), by inner barrel base
Material and outer cylinder body blank roll into inner barrel part (6) respectively and outer cylinder body part (7) is stand-by,
B, part make, with the inner barrel positioning step (3) and outer cylinder body positioning step (4) on the flange part (5) as base
Inner barrel part (6) and outer cylinder body part (7) described in brigadier are assembled into the diffusion that two ends include the flange part (5)
Device part, and spot welding is firm；Then again by the described location hole (2) of described spacer ferrule (1) insertion, and by the positioning
The front end of short tube (1) and the respective wall millet cake of the inner barrel part (6) weld it is solid, by the rear end of the spacer ferrule (1) with
The madial wall spot welding of the location hole (2) firmly, is made diffuser element blank；Finally by first location hole welding rear flange connection
Described diffuser element blank is welded diffuser element by the order of weldering,
C, the water pressure test, first carry out the water pressure test to the diffuser element that step b makes by 1.25 times of design requirement pressure, close
General assembly is treated after carrying out rust cleaning polishing anti-corrosion after lattice again,
D, general assembly, diffuser element obtained in step c is finally assembled into the diffuser of completion, is completed once described
The making work of aerodynamic experiment diffuser.
2. the manufacture method of aerodynamic experiment diffuser according to claim 1, it is characterised in that：It is described in processing
Flange part (5) when, while being processed on the axially inner side wall of the flange part (5) and in radial sidewalls in for welding
The welding groove (8) of cylinder and outer cylinder body.
3. the manufacture method of aerodynamic experiment diffuser according to claim 1, it is characterised in that：In step b,
When making described diffuser element, while in the two ends welding equipment water inlet pipe and outlet pipe of the diffuser element, the water inlet
Pipe and the outlet pipe reassemble welding after the completion of flange connection weldering and location hole welding.
4. the manufacture method of the aerodynamic experiment diffuser according to claim 1,2 or 3, it is characterised in that：Step b
In, when described spacer ferrule (1) is welded with described inner barrel part (6) and location hole (2), while will be described
The inside of spacer ferrule (1) is filled up to by built-up welding and is flushed with the lateral wall of outer cylinder body part (7).
5. the manufacture method of aerodynamic experiment diffuser according to claim 4, it is characterised in that：Making outer barrel
During body part (7), using the board making of at least thick 4 ㎜s bigger than design thickness, and after the diffuser element welding equipment, hydraulic pressure
After pass the test by turning remove spacer ferrule (1) described in built-up welding it is internal when the weldering protruded is high and/or overlap.
6. the manufacture method of aerodynamic experiment diffuser according to claim 4, it is characterised in that：In step a,
When blanking prepares inner barrel blank and outer cylinder body blank, first using computer setting-out typesetting, then using based automatic flame cutting device
Oxygen-acetylene cutting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044240.6A CN104596723B (en) | 2015-01-28 | 2015-01-28 | The manufacture method of aerodynamic experiment diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044240.6A CN104596723B (en) | 2015-01-28 | 2015-01-28 | The manufacture method of aerodynamic experiment diffuser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104596723A CN104596723A (en) | 2015-05-06 |
| CN104596723B true CN104596723B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510044240.6A Expired - Fee Related CN104596723B (en) | 2015-01-28 | 2015-01-28 | The manufacture method of aerodynamic experiment diffuser |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570920B (en) * | 2018-11-20 | 2020-07-03 | 四川航天中天动力装备有限责任公司 | Machining method for base body of wave-lobe diffuser |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1254416A (en) * | 1959-10-16 | 1961-02-24 | Bertin & Cie | Diffuser for fluid and devices including application |
| GB920079A (en) * | 1960-10-14 | 1963-03-06 | Bristol Siddeley Engines Ltd | Improvements in or relating to apparatus for producing a high velocity gaseous stream |
| US3998393A (en) * | 1976-01-20 | 1976-12-21 | The United States Of America As Represented By The Secretary Of The Air Force | Supersonic diffuser |
| DE3837970C2 (en) * | 1988-11-09 | 1994-05-05 | Deutsche Forsch Luft Raumfahrt | Deformable wall |
| US5099685A (en) * | 1990-08-09 | 1992-03-31 | The Boeing Company | Boundary layer control diffuser for a wind tunnel or the like |
| JP3396339B2 (en) * | 1995-07-04 | 2003-04-14 | 三菱重工業株式会社 | Solid rocket engine test equipment |
| JPH09196807A (en) * | 1996-01-16 | 1997-07-31 | Mitsubishi Heavy Ind Ltd | Nozzle for shock tunnel |
| US5942682A (en) * | 1998-02-02 | 1999-08-24 | Northrop Grumman Corporation | Apparatus to simulate aerodynamic cooling and heating effects on aircraft/missile equipment |
| CN1239897C (en) * | 2003-12-09 | 2006-02-01 | 西北工业大学 | Aeroengine materials hot end environment experimental simulation method and device |
| CN2694247Y (en) * | 2004-03-03 | 2005-04-20 | 吉林大学 | Low noise wind tunnel used for automobile wind tunnel experiment |
| CN101639397B (en) * | 2009-07-15 | 2011-05-18 | 北京航空航天大学 | Temperature adjusting system of integrated sand-blowing dust-blowing environment simulation system and method thereof |
| RU2451274C1 (en) * | 2010-12-16 | 2012-05-20 | Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ") | Method of generating gas flow in working section of wind tunnel and wind tunnel |
| CN102229361B (en) * | 2011-04-06 | 2012-07-11 | 北京航空航天大学 | Tester for aerodynamic heating structure |
| CN202255827U (en) * | 2011-09-24 | 2012-05-30 | 国营红阳机械厂 | Hypersonic wind tunnel cooler |
| CN102444476B (en) * | 2011-12-15 | 2014-05-14 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Wave-shaped diffuser of gas turbine |
| CN102967466B (en) * | 2012-11-30 | 2015-01-07 | 中国航天空气动力技术研究院 | Contraction section of high-temperature gas flow equipment diffuser |
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- 2015-01-28 CN CN201510044240.6A patent/CN104596723B/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wen Jiang Inventor before: Wang Yungui Inventor before: Huang Junming Inventor before: Luo Jianjun Inventor before: Wang Cunjiang Inventor before: Jiang Hui |
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Effective date of registration: 20180502 Address after: 610046 No. 1, 4 floor 1-5, 15 Wuxing four road, Wuhou District, Chengdu, Sichuan. Patentee after: SICHUAN SHANGYUAN TIANJIAO CONSTRUCTION ENGINEERING CO., LTD. Address before: 610027 1, 19 1, 1 ginkgo Road, Jinniu District, Chengdu, Sichuan. Patentee before: ZHONGYU YUANFA INTERNATIONAL CONSTRUCTION GROUP CO., LTD. |
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Granted publication date: 20170616 Termination date: 20180128 |
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