CN204788883U - Improve switching section of closed ice wind -tunnel wind speed - Google Patents
Improve switching section of closed ice wind -tunnel wind speed Download PDFInfo
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- CN204788883U CN204788883U CN201520493992.6U CN201520493992U CN204788883U CN 204788883 U CN204788883 U CN 204788883U CN 201520493992 U CN201520493992 U CN 201520493992U CN 204788883 U CN204788883 U CN 204788883U
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Abstract
The utility model provides an improve switching section of closed ice wind -tunnel wind speed, relates to ice wind -tunnel test device's structural design technical field for the wind tunnel test of closed ice. The inflatable seal circle through preceding ring flange, back ring flange and the butt joint of closed ice wind -tunnel structure, is installed in the recess that sets up respectively to transition, the straight section of thick bamboo section of barrel in the switching section on preceding ring flange, the back ring flange, and the external outer barrel that is provided with the thickening of switching section inner tube is through supporting shoe and the external barrel played a supporting role of supporting seat cooperation. The utility model provides an improve switching section of closed ice wind -tunnel wind speed cross -section is circular convergent shape, can effectively improve the wind speed of ice in the wind -tunnel, the assembly, dismantle all very convenient, the engineering conversion is simple, device stability is high, safe and reliable, easily realize.
Description
Technical field
The utility model relates to the structure-design technique field of icing mnncl tcst device, for enclosed icing mnncl tcst, in particular to a kind of group section improving enclosed icing tunnel wind speed.
Background technology
When enclosed icing tunnel carries out parts anti-icing experiment, due to the restriction of wind tunnel fan power, test chamber inlet velocity can not meet the anti-icing experiment requirement of engine components under large wind speed.Therefore, need at the device of test section entrance point increase in order to improve wind speed.In addition, the icing tunnel speeder aerodynamic characteristics that also the demand fulfillment pressure loss is little, testpieces leading edge air-flow aerodynamic parameter is consistent with engine practical structures.Finally, this testing equipment also needs easily to arrange test lead, and convenient for assembly and dismounting, meets the requirement recycled.Do not have a kind of effective organization plan can solve the problem of above-mentioned several aspect in prior art, simultaneously the problem needing now solution badly how to design a kind of mechanism to solve problem in the middle of above-mentioned prior art simultaneously.
Utility model content
The purpose of this utility model is to solve above-mentioned deficiency of the prior art, provide a kind of simple and reasonable, test section wind speed can be improved, convenient for assembly and dismounting, meet and recycle the group section of the raising enclosed icing tunnel wind speed of requirement.
The purpose of this utility model is achieved through the following technical solutions: a kind of group section improving enclosed icing tunnel wind speed, for enclosed icing tunnel anti-icing experiment, comprise group section inner barrel, the flow area of group section inner barrel is circular, group section inner barrel is set to by two sections, the front and back integral structure formed, leading portion is transition, back segment is direct tube section, the circulation area of transition reduce gradually and rounding off to direct tube section, transition, the direct tube section of group section inner barrel are connected with enclosed icing tunnel structure respectively by forward flange dish, rear stub.
, forward flange dish, rear stub are provided with groove in such scheme preferably, are provided with gas-flow closure circle in groove, gas-flow closure circle is fixed by the 3rd screw.
In above-mentioned either a program preferably, the air intake opening place of gas-flow closure circle is provided with cover plate and compresses gas-flow closure circle, and cover plate is fixedly connected with forward flange dish, rear stub by the first screw by cover plate.
In above-mentioned either a program preferably, outer, the outer transition of group section inner barrel of group section inner barrel and direct tube section transition position and direct tube section end are provided with the outer cylinder body of thickening.
In above-mentioned either a program preferably, outer cylinder body is provided with back-up block below position, is provided with supporting seat and coordinates with back-up block and support outer cylinder body and group section inner barrel below back-up block.
In above-mentioned either a program preferably, back-up block is fixedly connected with by the second screw with supporting seat.
The beneficial effect of the group section of raising enclosed icing tunnel wind speed provided by the utility model is that the flow area that circular group section is tapered effectively can promote the wind speed of icing tunnel entrance; The form of obturaging of groove filled rubber circle is have employed before and after circular group section, prevent test gas leakage, the type of attachment of icing tunnel with bolts makes group section and icing tunnel compact siro spinning technology, and assemble, dismantle all very convenient, engineering transform simple, be convenient to assembling and dismounting, device stability high, safe and reliable, be easy to realize.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of group section according to raising enclosed icing tunnel wind speed of the present utility model;
Fig. 2 is the structure left view embodiment illustrated in fig. 1 of the group section according to raising enclosed icing tunnel wind speed of the present utility model;
Fig. 3 is the structure cut-open view embodiment illustrated in fig. 1 of the group section according to raising enclosed icing tunnel wind speed of the present utility model.
Reference numeral:
1-the 3rd screw, 2-gas-flow closure circle, 3-outer cylinder body, 4-second screw, 5-forward flange dish, 6-group section inner barrel, 7-rear stub, 8-back-up block, 9-supporting seat, 10-cover plate, 11-first screw, 12-monitoring point.
Embodiment
In order to understand the turning guiding device of the enclosed icing tunnel according to the utility model scheme better, be further elaborated explanation below in conjunction with the preferred embodiment of accompanying drawing to the turning guiding device of enclosed icing tunnel of the present utility model.
As shown in Figure 1-Figure 3, the group section of the raising enclosed icing tunnel wind speed that the utility model provides, for enclosed icing tunnel anti-icing experiment, comprise group section inner barrel 6, the flow area of group section inner barrel 6 is circular, group section inner barrel 6 is set to by two sections, the front and back integral structure formed, leading portion is transition, back segment is direct tube section, the circulation area of transition reduce gradually and rounding off to direct tube section, transition, the direct tube section of group section inner barrel 6 are connected with enclosed icing tunnel structure respectively by forward flange dish 5, rear stub 7.Forward flange dish 5, rear stub 7 are provided with groove, gas-flow closure circle 2 is installed in groove.The air intake opening place of gas-flow closure circle 2 is provided with cover plate 10 and compresses gas-flow closure circle 2, and cover plate 10 is fixedly connected with forward flange dish 5, rear stub 7 by the first screw 11 by the 3rd screw securing cover plate 10 by gas-flow closure circle 2.
The outer cylinder body 3 that the group section inner barrel 6 of the group section of the raising enclosed icing tunnel wind speed that the utility model provides is outer, the outer transition of group section inner barrel 6 and direct tube section transition position and direct tube section end are provided with thickening.Outer cylinder body 3 is provided with back-up block 8 below position, is provided with supporting seat 9 and coordinates with back-up block and support outer cylinder body 3 and described group section inner barrel 6 below back-up block 8.Back-up block 8 is fixedly connected with by the second screw 4 with supporting seat 9.Group section inner barrel 6 is provided with monitoring point 12.
In concrete use procedure, the group section inner barrel 6 of the group section of the raising enclosed icing tunnel wind speed that the utility model provides is the cylinder-like structure of circulation area convergent.One end that the sectional area of the group section inner barrel 6 of the group section of raising enclosed icing tunnel wind speed icing tunnel mechanism provided with the utility model by forward flange dish 5 in the air inlet of icing tunnel is larger is connected.The end of the group section inner barrel 6 of the group section of the raising enclosed icing tunnel wind speed provided at the utility model is connected with icing tunnel mechanism by rear stub 7.Inner barrel 6 circulation area convergent, when the group section of the raising enclosed icing tunnel wind speed that identical flow is provided by the utility model, due to circulation area convergent, the wind speed at rear stub 7 place wants high compared to the wind speed of forward flange Pan5Chu.
In order to strengthen the intensity turning stage inner barrel 6 of the group section of the raising enclosed icing tunnel wind speed that the utility model provides, be provided with the outer cylinder body 3 of thickening at the converging transition of inner barrel and direct tube section end.
Back-up block 8 is provided with, matching with the surface of contact of outer cylinder body 3 of back-up block 8 below outer cylinder body 3.Back-up block 8 is played a supporting role to back-up block 8 and outer cylinder body 3 by supporting seat 9 is fixing, and back-up block 8 is fixedly fixed on supporting seat 9 by the second screw 4, also back-up block 8 and supporting seat 9 can be machined into as integral type structure.
The edge of forward flange dish 5, rear stub 7 is provided with groove, is all provided with gas-flow closure circle 2 in groove.The object of installing gas-flow closure circle 2 is to ensure forward flange dish 5, rear stub 7 can not be leaked gas with icing tunnel joint, ensures the impermeability between the group section of the raising enclosed icing tunnel wind speed that the utility model provides and icing tunnel mechanism.Cover plate 10 is set at the air intake opening place of gas-flow closure circle 2, and by the first screw 11, cover plate 10 is fixed in forward flange dish 5 and rear stub 7, its objective is and prevent gas-flow closure circle 2 from leaking gas.If gas-flow closure circle 2 leaks gas, then forward flange dish 5, rear stub 7 can not be protected with the sealing of icing tunnel mechanism junction.
Group section specific embodiment more than in conjunction with raising enclosed icing tunnel wind speed of the present utility model is described in detail, but be not to restriction of the present utility model, everyly according to technical spirit of the present utility model, technical scope of the present utility model is all belonged to any simple modification made for any of the above embodiments, also it should be noted that, comprise the combination in any between each part mentioned above according to the category of the group section technical scheme of raising enclosed icing tunnel wind speed of the present utility model.
Claims (7)
1. one kind is improved the group section of enclosed icing tunnel wind speed, for enclosed icing tunnel anti-icing experiment, it is characterized in that, comprise group section inner barrel (6), the flow area of group section inner barrel (6) is circular, group section inner barrel (6) is set to by two sections, the front and back integral structure formed, leading portion is transition, back segment is direct tube section, the circulation area of transition reduce gradually and rounding off to direct tube section, the transition of group section inner barrel (6), direct tube section is respectively by forward flange dish (5), rear stub (7) is docked with enclosed icing tunnel structure.
2. the group section improving enclosed icing tunnel wind speed as claimed in claim 1, it is characterized in that: (7) are provided with groove for described forward flange dish (5), described rear stub, be provided with gas-flow closure circle (2) in groove, gas-flow closure circle (2) is fixed by the 3rd screw (1).
3. the group section improving enclosed icing tunnel wind speed as claimed in claim 2, it is characterized in that: the air intake opening place of gas-flow closure circle (2) is provided with cover plate (10) and compresses gas-flow closure circle (2), cover plate (10) is by the first screw (11), be fixedly connected with cover plate (10) with described forward flange dish (5), described rear stub (7).
4. the as claimed in claim 2 group section improving enclosed icing tunnel wind speed, is characterized in that: described group section inner barrel (6) outward, described group section inner barrel (6) outer transition and direct tube section transition position and direct tube section end be provided with the outer cylinder body (3) of thickening.
5. the group section improving enclosed icing tunnel wind speed as claimed in claim 4, it is characterized in that: be provided with back-up block (8) below outer cylinder body (3) position, back-up block (8) below is provided with supporting seat (9) and coordinates with back-up block and support outer cylinder body (3) and described group section inner barrel (6).
6. the group section improving enclosed icing tunnel wind speed as claimed in claim 5, is characterized in that: described back-up block (8) is fixed by the second screw (4) with described supporting seat (9).
7. the group section of the raising enclosed icing tunnel wind speed as described in above-mentioned arbitrary claim, is characterized in that: described group section inner barrel (6) is provided with monitoring point (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493992.6U CN204788883U (en) | 2015-07-09 | 2015-07-09 | Improve switching section of closed ice wind -tunnel wind speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493992.6U CN204788883U (en) | 2015-07-09 | 2015-07-09 | Improve switching section of closed ice wind -tunnel wind speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204788883U true CN204788883U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520493992.6U Active CN204788883U (en) | 2015-07-09 | 2015-07-09 | Improve switching section of closed ice wind -tunnel wind speed |
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| Country | Link |
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| CN (1) | CN204788883U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697790A (en) * | 2015-12-09 | 2016-06-22 | 中国空气动力研究与发展中心超高速空气动力研究所 | Air inflation axial sealing device used in vacuum environment |
| CN110346107A (en) * | 2018-04-03 | 2019-10-18 | 上海汽车集团股份有限公司 | It is a kind of for testing the wind-tunnel of automotive performance |
| CN111197673A (en) * | 2020-02-19 | 2020-05-26 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel high-pressure inflatable sealing shroud three-way inflating nozzle and using method thereof |
-
2015
- 2015-07-09 CN CN201520493992.6U patent/CN204788883U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697790A (en) * | 2015-12-09 | 2016-06-22 | 中国空气动力研究与发展中心超高速空气动力研究所 | Air inflation axial sealing device used in vacuum environment |
| CN110346107A (en) * | 2018-04-03 | 2019-10-18 | 上海汽车集团股份有限公司 | It is a kind of for testing the wind-tunnel of automotive performance |
| CN111197673A (en) * | 2020-02-19 | 2020-05-26 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel high-pressure inflatable sealing shroud three-way inflating nozzle and using method thereof |
| CN111197673B (en) * | 2020-02-19 | 2024-05-31 | 中国空气动力研究与发展中心高速空气动力研究所 | High-speed wind tunnel high-pressure inflation sealing shroud three-way inflation nozzle and application method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |