CN206573272U - Large-scale extension type high temperature resistant diffuser - Google Patents
Large-scale extension type high temperature resistant diffuser Download PDFInfo
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- CN206573272U CN206573272U CN201621417625.9U CN201621417625U CN206573272U CN 206573272 U CN206573272 U CN 206573272U CN 201621417625 U CN201621417625 U CN 201621417625U CN 206573272 U CN206573272 U CN 206573272U
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- sleeve sections
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- high temperature
- temperature resistant
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Abstract
The utility model is related to arc tunnel solar heat protection technical field, specifically discloses a kind of large-scale extension type high temperature resistant diffuser.A kind of large-scale extension type high temperature resistant diffuser structure, the structure includes contraction section, sleeve sections, venturi section and expansion segment, wherein, contraction section, sleeve sections, venturi section and expansion segment pass sequentially through flange interconnection, form diffuser body construction, sleeve sections are the inside and outside tube structure being mutually matched, and the sleeve sections inner barrel that can be achieved to be connected with contraction section is mutually shifted in fixed sleeve sections outer cylinder body.A kind of large-scale extension type high temperature resistant diffuser described in the utility model, the need for different models and flow field can be met, extension pressur efficiency obtains detailed lifting, and contraction section realizes freely adjusting for 1 meter of distance, the model check demand in 2 meter rulers cun can be met, the high enthalpy long-play in flow field can be met.
Description
Technical field
The utility model belongs to arc tunnel solar heat protection technical field, and in particular to a kind of large-scale extension type high temperature resistant diffusion
Device.
Background technology
At present, with the development of aerospace craft, the requirement more and more higher tested ground solar heat protection, moulded dimension is increasingly
Greatly, test period increasingly longer, flow field parameter more and more higher, arc tunnel, which sets up flow field, will fully meet these requirements.Diffusion
Device reduces pitot loss as arc tunnel important component, improves extension pressur efficiency, can be on existing vacuum pumping capability basis
Upper effectively extension flow field parallel-adder settle-out time.
The content of the invention
The purpose of this utility model is to provide a kind of large-scale extension type high temperature resistant diffuser, can met in arc tunnel
The need for different dimension models and flow field.
The technical solution of the utility model is as follows：A kind of large-scale extension type high temperature resistant diffuser structure, the structure includes
Contraction section, sleeve sections, venturi section and expansion segment, wherein, contraction section, sleeve sections, venturi section and expansion segment pass sequentially through method
Orchid is connected with each other, and forms diffuser body construction, sleeve sections are the inside and outside tube structure being mutually matched, and can be achieved and contraction section phase
The sleeve sections inner barrel of connection is mutually shifted in fixed sleeve sections outer cylinder body.
Described contraction section, sleeve sections, venturi section and sandwich that expansion segment is stainless steel.
Described contraction section and the tubaeform tube structure that expansion segment is Diameter Gradual Change, sleeve sections and venturi section are cylindrical drum
Structure, and diameter is gradually tapered up the contraction section being connected with sleeve sections from left to right, the expansion segment being connected with venturi section is from a left side
Gradually expanded to right diameter.
In described sleeve sections graphite packing packing seal is utilized between inside and outside cylinder.
Described contraction section is supported by rolling wheel guide rails supporting mechanism and fixed, and contraction section can be achieved and supports machine along rolling wheel guide rails
Guide rail in structure is slided.
The inner cylinder that described tractor is included in nut slider and sleeve sections on hydraulic pump and screw mandrel, screw mandrel connects
Connect, drive screw mandrel to run by the hydraulic pump in tractor, realize that inner cylinder is moved in fixed outer barrel in sleeve sections.
The cooling water being passed through in described contraction section, venturi section and expansion segment in sandwich injects from lower end, from upper
End outflow.
The cooling water outlet and inlet of interlayer is in the side of sleeve sections in described sleeve sections.
Remarkable result of the present utility model is：A kind of large-scale extension type high temperature resistant diffusion described in the utility model
Device, the need for can meeting different models and flow field, extension pressur efficiency obtains detailed lifting, and contraction section realizes freely adjusting for 1 meter of distance
Section, can meet the model check demand in 2 meter rulers cun, can meet the high enthalpy long-play in flow field.
Brief description of the drawings
Fig. 1 is a kind of large-scale extension type high temperature resistant diffuser structure schematic diagram described in the utility model；
In figure：1st, contraction section；2nd, rolling wheel guide rails supporting mechanism；3rd, sleeve sections；4th, tractor；5th, venturi section；6th, expand
Section.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail to the utility model.
As shown in figure 1, a kind of large-scale extension type high temperature resistant diffuser structure, including contraction section 1, sleeve sections 3, venturi section
5 and expansion segment 6, wherein, contraction section 1, sleeve sections 3, venturi section 5 and expansion segment 6 pass sequentially through flange interconnection, are formed
Diffuser body construction, wherein, contraction section 1 and the tubaeform tube structure that expansion segment 6 is Diameter Gradual Change, sleeve sections 3 and venturi
Section 5 is cylindrical structure, and diameter is gradually tapered up the contraction section 1 being connected with sleeve sections 3 from left to right, is connected with venturi section 5
The expansion segment 6 connect from left to right gradually expand by diameter；Contraction section 1, sleeve sections 3, venturi section 5 and expansion segment 6 are stainless steel
Cooling water enters from lower end in interlayer in the sandwich of material, and contraction section 1, venturi section 5 and expansion segment 6, from upper end stream
Go out, it is ensured that cooling water is full of interlayer；Sleeve sections 3 are the tube-in-tube structure being mutually matched, wherein, inside and outside sleeve can be slided mutually,
And utilize graphite packing packing seal；The import and export of cooling water are in side in the interlayer of sleeve sections 3；Contraction section 1 is led by roller
The support of rail supporting mechanism 2 is fixed, and tractor 4 is included in nut slider and sleeve sections 3 on hydraulic pump and screw mandrel, screw mandrel
Inner cylinder is connected, and is driven screw mandrel to run by the hydraulic pump in tractor 4, is realized that inner cylinder is in fixed outer barrel in sleeve sections 3
Portion is moved, and related contraction section 1 is slided along the guide rail in rolling wheel guide rails supporting mechanism 2.
Claims (8)
1. a kind of large-scale extension type high temperature resistant diffuser structure, it is characterised in that：The structure includes contraction section (1), sleeve sections
(3), venturi section (5) and expansion segment (6), wherein, contraction section (1), sleeve sections (3), venturi section (5) and expansion segment (6) according to
It is secondary to be connected with each other by flange, diffuser body construction is formed, sleeve sections (3) are the inside and outside tube structure being mutually matched, can be real
Sleeve sections (3) inner barrel being now connected with contraction section (1) is mutually shifted in fixed sleeve sections (3) outer cylinder body.
2. a kind of large-scale extension type high temperature resistant diffuser structure according to claim 1, it is characterised in that：Described receipts
Contracting section (1), sleeve sections (3), venturi section (5) and the sandwich that expansion segment (6) is stainless steel.
3. a kind of large-scale extension type high temperature resistant diffuser structure according to claim 1, it is characterised in that：Described receipts
Contracting section (1) and the tubaeform tube structure that expansion segment (6) is Diameter Gradual Change, sleeve sections (3) and venturi section (5) are cylindrical drum knot
Structure, and diameter is gradually tapered up the contraction section (1) being connected with sleeve sections (3) from left to right, the expansion being connected with venturi section (5)
Section (6) from left to right gradually expand by diameter.
4. a kind of large-scale extension type high temperature resistant diffuser structure according to claim 1, it is characterised in that：Described set
In cylinder section (3) graphite packing packing seal is utilized between inside and outside cylinder.
5. a kind of large-scale extension type high temperature resistant diffuser structure according to claim 1, it is characterised in that：Described receipts
Contracting section (1) is supported by rolling wheel guide rails supporting mechanism (2) and fixed, and contraction section (1) can be achieved along along rolling wheel guide rails supporting mechanism (2)
Guide rail slide.
6. a kind of large-scale extension type high temperature resistant diffuser structure according to claim 1, it is characterised in that：Described is resistance to
High temperature diffuser structure further comprises tractor (4), and described tractor (4) includes hydraulic pump and screw mandrel, screw mandrel
On nut slider be connected with the inner cylinder in sleeve sections (3), drive screw mandrel to run by hydraulic pump in tractor (4), it is real
Inner cylinder is moved in fixed outer barrel in existing sleeve sections (3).
7. a kind of large-scale extension type high temperature resistant diffuser structure according to claim 2, it is characterised in that：Described receipts
The cooling water being passed through in contracting section (1), venturi section (5) and expansion segment (6) in sandwich injects from lower end, from upper end outflow.
8. a kind of large-scale extension type high temperature resistant diffuser structure according to claim 2, it is characterised in that：Described set
Side of the cooling water outlet and inlet of interlayer in sleeve sections (3) in cylinder section (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621417625.9U CN206573272U (en) | 2016-12-22 | 2016-12-22 | Large-scale extension type high temperature resistant diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621417625.9U CN206573272U (en) | 2016-12-22 | 2016-12-22 | Large-scale extension type high temperature resistant diffuser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206573272U true CN206573272U (en) | 2017-10-20 |
Family
ID=60063714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621417625.9U Active CN206573272U (en) | 2016-12-22 | 2016-12-22 | Large-scale extension type high temperature resistant diffuser |
Country Status (1)
| Country | Link |
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| CN (1) | CN206573272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109569349A (en) * | 2018-12-20 | 2019-04-05 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of explosion-proof dilution diffuser for carbon dioxide jet stream |
| CN112945509A (en) * | 2021-04-22 | 2021-06-11 | 中国空气动力研究与发展中心超高速空气动力研究所 | Opening plugging device for contraction section of hypersonic speed wind tunnel diffuser |
-
2016
- 2016-12-22 CN CN201621417625.9U patent/CN206573272U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109569349A (en) * | 2018-12-20 | 2019-04-05 | 中国空气动力研究与发展中心超高速空气动力研究所 | A kind of explosion-proof dilution diffuser for carbon dioxide jet stream |
| CN112945509A (en) * | 2021-04-22 | 2021-06-11 | 中国空气动力研究与发展中心超高速空气动力研究所 | Opening plugging device for contraction section of hypersonic speed wind tunnel diffuser |
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