CN203422226U - High-porosity and low-flow resistance reinforced rectifier device - Google Patents
High-porosity and low-flow resistance reinforced rectifier device Download PDFInfo
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- CN203422226U CN203422226U CN201320423602.9U CN201320423602U CN203422226U CN 203422226 U CN203422226 U CN 203422226U CN 201320423602 U CN201320423602 U CN 201320423602U CN 203422226 U CN203422226 U CN 203422226U
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- porous plate
- flow resistance
- fairing
- reinforced
- low flow
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Abstract
The utility model relates to a high-porosity and low-flow resistance reinforced rectifier device. The device comprises a porous plate with a plurality of via holes, the via holes of the porous plate are arranged in a honeycomb mode, the length-to-diameter ratio of the via holes is 1-3, the vertical spacing S1 of the via holes is equal to the quotient of the product of 0.63, d and the square root of the product of t, g and theta divided by the square root of theta, and the horizontal spacing of the via holes is equal to the quotient of the product of 1.25 and d divided by the square root of the product of beta, t, g and theta, wherein d is the diameter of the via holes and is 8-15mm, theta is the angle of the via holes and is 40-60 degrees, and beta is the porosity of the via holes and is 25-35%. The high-porosity and low-flow resistance reinforced rectifier device can be used for a long time in a large-flow and high-temperature environment and can achieve a good rectification effect.
Description
Technical field
The utility model relates to the reinforced fairing of a kind of high opening rate, low flow resistance, can be used for the fairing that flight Mach number is less than the direct-connected and free jet formula pilot system of 5 airbreathing motor, also can be used for the fairing of other similar test equipment.
Background technology
Airbreathing motor is the major impetus device of hypersonic aircraft and missile armament, in recent years, the research of air suction type power technology is competitively carried out in the countries in the world such as the U.S., Russia, the research of the domestic airbreathing motor technology of also using at the applicable hypersonic flight device of Efforts To Develop.Carry out ground experiment and be the effective means that breaks through airbreathing motor gordian technique, therefore need to set up a series of airbreathing motor ground-testing plant, direct-connected testing table and free jet test platform are important component parts wherein.
Ground-testing plant will be simulated the incoming flow air conditions under airbreathing motor state of flight, need to heat air, the classic method of air heat is that air is taked to chemical combustion and blending, this mode is first with a small amount of air and fuel combustion, to obtain high-temperature fuel gas, supplements a large amount of cold air and partial oxidations more afterwards in high-temperature fuel gas.Because the turbulivity of air-flow after hot and cold air blending is larger, speed is inhomogeneous, need to carry out rectification to mixed gas, to guarantee to enter the high temperature air even flow field of engine, need to before engine entrance, fairing be set for this reason.
Utility model content
Technology of the present utility model is dealt with problems and is: a kind of high temperature resistant porous fairing technology with high opening rate, low flow resistance is provided, can under high stagnation temperature (1100K) environment, uses reliably and with long-term at large flow (530kg/s), reach good rectification effect.
Technical solution of the present utility model is:
, low flow resistance a reinforced fairing, its special character is: comprise the porous plate 1 that is provided with a plurality of vias, the via on described porous plate is pressed honeycomb fashion and arranged, and the length-diameter ratio of described via is 1-3, the perpendicular spacing of described via
the horizontal spacing of described via
Wherein, d is via diameter 8mm-15mm; θ is 40 °-60 ° of the angles of via, and β is percentage of open area 25%-35%.
Also comprise the location reinforcement sleeve 2 that is positioned at porous plate 1 one sides, the periphery that sleeve 2 is fixed on porous plate is strengthened in described location.
Also comprise a plurality of circumferential ring stiffener 3 and/or the radial reinforced rib 4 that are arranged on porous plate lee face, described circumferential ring stiffener 3 is fixed on porous plate, and described radial reinforced rib is fixed between adjacent two circumferential ring stiffeners and circumferentially between ring stiffener and location reinforcement sleeve 20.
The length-diameter ratio of above-mentioned via is 1.6.
Preset clearance between above-mentioned radial reinforced rib 4 and porous plate, the distance in gap is 1.5-3 times of via aperture.
The arrangement principle of above-mentioned circumferential ring stiffener 30 and radial reinforced rib 4: meet blockage ratio and be less than 0.5%.
Above-mentioned via diameter d is 10mm, and the angle θ of described via is 60 °.
The utility model compared with prior art tool has the following advantages:
1, the commutation technique of large flow high temperature air, the maximum air flow amount that this fairing can pass through reaches 530kg/s, and gas flow temperature is up to 1100K, air flow field stagnation pressure deviation after fairing is less than 1%, be less than ± 25K of stagnation temperature deviation, velocity field homogeneity is better, and the pressure loss is less than 0.2MPa.
2, long-time large-scale structure robust techniques under high-temperature oxygen-enriched air shock environment, this fairing internal diameter is Φ 1.5m, at the circumferential ring stiffener of lee face cross weld and radial reinforced rib, instantaneous aerodynamic force percussive action in the time of can bearing mass flow air startup, realize long-time reliably working under the highest 1100K high temperature, strengthen structure the blockage ratio in hole is less than to 0.5%, substantially do not affect rectification effect.
3, the utility model fairing compact conformation, reliability is high, and processing is simple.
Adopt the cylindrical porous plate of making circular hole, and in reinforced fairing technical scheme and the structural design of porous plate lee face circumferential ring stiffener arranged in a crossed manner and radial reinforced rib, percentage of open area reaches 30%, little to the disturbance of air-flow, flow resistance is low, under large flow, hot environment, can use for a long time.
4, the utility model increases circumferential ring stiffener 3 and radial reinforced rib 4, in the bulk strength while of improving porous plate, also can play the effect of compensation rectification.Air-flow through porous plate is divided into a plurality of uniform regions, carries out water conservancy diversion and subregion and process, make rectification effect better.
5, the utility model is chosen the restraining factors of length-diameter ratio: performance (rectification effect, flow resistance), cost, manufacturability, flow resistance, through a large amount of tests, select suitable length-diameter ratio scope.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model fairing;
Fig. 2 is the cut-open view of fairing;
Fig. 3 is the via position view of the utility model porous plate.
Wherein Reference numeral is: 1-porous plate, 2-strengthens sleeve, the circumferential ring stiffener of 3-, 4-radial reinforced rib in location.
Embodiment
As shown in Figure 1, the utility model is comprised of porous plate 1, location reinforcement sleeve 2, circumferential ring stiffener 3 and radial reinforced rib 4.Opened round through hole on porous plate 1, hole is pressed honeycomb fashion and is arranged, percentage of open area reaches 30%, perforate length-diameter ratio 1.6, air-flow is after porous plate rectification, turbulivity reduces, reach rectification effect, in porous plate peripheral solder location, strengthen sleeve 2, realize the installation location of porous plate and testing equipment, can adjusting sleeve barrel structure according to the concrete structure of equipment, at porous plate lee face interval, weld circumferential ring stiffener 3, also can be at circumferential cross weld radial reinforced rib 4 or welding radial reinforced rib 4 between outermost circumferential ring stiffener and location reinforcing sleeve between ring stiffener, circumferentially the quantity of ring stiffener and radial reinforced rib can correspondingly be adjusted, preset clearance between reinforcement and porous plate (1.5-3 in aperture doubly), avoid stopping up the gas channel on porous plate.
The perpendicular spacing of via
the horizontal spacing of via
Wherein, d is via diameter 8mm-15mm; θ is 40 °-60 ° of the angles of via, and β is percentage of open area 25%-35%.
Embodiment:
Claims (7)
1. the reinforced fairing of a high opening rate, low flow resistance, it is characterized in that: comprise the porous plate (1) that is provided with a plurality of vias, via on described porous plate is pressed honeycomb fashion and is arranged, and the length-diameter ratio of described via is 1-3, the perpendicular spacing of described via
the horizontal spacing of described via
Wherein, d is via diameter 8mm-15mm; θ is 40 °-60 ° of the angles of via, and β is percentage of open area 25%-35%.
2. the reinforced fairing of high opening rate according to claim 1, low flow resistance, is characterized in that: also comprise the location reinforcement sleeve (2) that is positioned at porous plate (1) one side, the periphery that sleeve (2) is fixed on porous plate is strengthened in described location.
3. the reinforced fairing of high opening rate according to claim 1 and 2, low flow resistance, it is characterized in that: also comprise a plurality of circumferential ring stiffener (3) and/or the radial reinforced rib (4) that are arranged on porous plate lee face, described circumferential ring stiffener (3) is fixed on porous plate, and described radial reinforced rib is fixed between adjacent two circumferential ring stiffeners and between circumferential ring stiffener and location reinforcement sleeve (2).
4. the reinforced fairing of high opening rate according to claim 3, low flow resistance, is characterized in that: the length-diameter ratio of described via is 1.6.
5. the reinforced fairing of high opening rate according to claim 4, low flow resistance, is characterized in that: preset clearance between described radial reinforced rib (4) and porous plate, the distance in gap is 1.5-3 times of via aperture.
6. the reinforced fairing of high opening rate according to claim 3, low flow resistance, is characterized in that: the arrangement principle of described circumferential ring stiffener (3) and radial reinforced rib (4): meet blockage ratio and be less than 0.5%.
7. the reinforced fairing of high opening rate according to claim 6, low flow resistance, is characterized in that: described via diameter d is 10mm, and the angle θ of described via is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423602.9U CN203422226U (en) | 2013-07-16 | 2013-07-16 | High-porosity and low-flow resistance reinforced rectifier device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423602.9U CN203422226U (en) | 2013-07-16 | 2013-07-16 | High-porosity and low-flow resistance reinforced rectifier device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203422226U true CN203422226U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320423602.9U Withdrawn - After Issue CN203422226U (en) | 2013-07-16 | 2013-07-16 | High-porosity and low-flow resistance reinforced rectifier device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203422226U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376210A (en) * | 2013-07-16 | 2013-10-30 | 中国航天科技集团公司第六研究院第十一研究所 | High-opening-percentage low-flow-resistance enhanced rectifying device |
| CN103984823A (en) * | 2014-05-16 | 2014-08-13 | 中国科学院光电技术研究所 | Method for determining flow resistance of any tube type porous plate |
| CN112197294A (en) * | 2020-09-21 | 2021-01-08 | 中国航发沈阳发动机研究所 | Rectifying plate |
| CN112240568A (en) * | 2020-09-11 | 2021-01-19 | 北京动力机械研究所 | Water-cooling cylindrical rectifier for stable combustion of heater |
-
2013
- 2013-07-16 CN CN201320423602.9U patent/CN203422226U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103376210A (en) * | 2013-07-16 | 2013-10-30 | 中国航天科技集团公司第六研究院第十一研究所 | High-opening-percentage low-flow-resistance enhanced rectifying device |
| CN103376210B (en) * | 2013-07-16 | 2015-10-21 | 中国航天科技集团公司第六研究院第十一研究所 | The reinforced fairing of a kind of high opening rate, low flow resistance |
| CN103984823A (en) * | 2014-05-16 | 2014-08-13 | 中国科学院光电技术研究所 | Method for determining flow resistance of any tube type porous plate |
| CN103984823B (en) * | 2014-05-16 | 2018-03-06 | 中国科学院光电技术研究所 | Method for determining flow resistance of any tube type porous plate |
| CN112240568A (en) * | 2020-09-11 | 2021-01-19 | 北京动力机械研究所 | Water-cooling cylindrical rectifier for stable combustion of heater |
| CN112197294A (en) * | 2020-09-21 | 2021-01-08 | 中国航发沈阳发动机研究所 | Rectifying plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140205 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |