CN109733639A - A kind of freezing weather room flow field rock-steady structure - Google Patents
A kind of freezing weather room flow field rock-steady structure Download PDFInfo
- Publication number
- CN109733639A CN109733639A CN201811507087.6A CN201811507087A CN109733639A CN 109733639 A CN109733639 A CN 109733639A CN 201811507087 A CN201811507087 A CN 201811507087A CN 109733639 A CN109733639 A CN 109733639A
- Authority
- CN
- China
- Prior art keywords
- flow
- flow field
- steady structure
- freezing weather
- reflux
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention belongs to anti-deicing experimental technique fields, are related to a kind of freezing weather room flow field rock-steady structure.Freezing weather room, which increases reflux interlayer (2), realizes vertical return-flow structure, guarantees that air-flow circulates up and down；Air-flow jet pipe (3) is closed between inner wall using baffle (4) around outlet in moulding surface structure is shunk；The forward and backward increase flow straightening grid (6) of blower (5) and diffuser pipe (7)；It uses partition (9) to close between inner wall around cooler (8), guarantees the stability and uniformity of air-flow.The present invention guarantees that flow field is stablized, thus guarantee test effect by special structure setting and processing.
Description
Technical field
The invention belongs to anti-deicing experimental technique fields, are related to a kind of freezing weather room flow field rock-steady structure.
Background technique
Freezing weather room is the Major Ground Test equipment of a kind of analog low temperature, wind speed and icing cloud and mist, be can be applied to
Aircraft anti-icing component, component and system are frozen, deicing and anti-icing experiment, study its charging properties, verify its anti-deicing
Energy.Air-flow in freezing weather room is driven by blower, and atomized water is blowed to testpieces, is formed and is frozen on testpieces.For shape
At the icing cloud for meeting experimental condition, wind speed should be stablized.The knot for meeting project demand is formed in a closed environment
Ice condition is highly difficult.There is blower blowing in climatic chamber, the spray generated by spraying, if testpieces is rotated again, that gas
Waiting indoor flow field can be more chaotic.Weather indoor air flow disorder, then blower can not steady operation, working efficiency can drop significantly
It is low, while it being difficult to set up stable temperature field, and heat exchange efficiency is low.Therefore advantageous measures must be taken to establish steady flow condition.
Summary of the invention
The purpose of the present invention is: a kind of flow field rock-steady structure that can be used for freezing weather room is designed, by implementing, Ke Yibao
It demonstrate,proves the indoor air velocity distribution of freezing weather to stablize, while guaranteeing the uniformity of test parameters in large scale space.
To solve this technical problem, the technical scheme is that
A kind of flow field rock-steady structure of freezing weather room, the freezing weather room include reflux interlayer 2, air-flow jet pipe 3,
Baffle 4, blower 5, flow straightening grid 6, diffuser pipe 7, cooler 8, partition 9；The freezing weather chamber interior be equipped with reflux every
Layer 2, freezing weather room is divided into upper layer and lower layer by the reflux interlayer 2, and away from the distance ratio at the top and bottom of freezing weather room
Range is 1:1.5 between 1:2, and the distance L away from freezing weather room inner left wall and right side inner wall is equal, and distance L accounts for overall length
The range of degree is 10% to 15%；Vertical return-flow structure is formed, air-flow circulates up and down；The air-flow jet pipe 3 is mounted on
Lower layer, air-flow jet pipe 3 are closed between inner wall using baffle 4 around outlet, are guaranteed that air-flow passes through from jet pipe, are avoided the formation of gas
Flow crossfire；The blower 5 is arranged side by side in 2 top of reflux interlayer in parallel；The flow straightening grid 6 is mounted on before blower 5,
It is rectified, guarantees the uniform job stability of the incoming flow of blower；5 exit of blower setting diffuser pipe 7 and be mounted on reflux every
Layer 2 is used for steady air flow, reduces the pressure loss；The cooler 8 be mounted on reflux interlayer 2 on and be located at flow straightening grid 6 it
Before, it uses partition 9 to close between inner wall around cooler 8, guarantees that air sufficiently flows through cooler 8.
Preferably, the 2 two sides ventilation of reflux interlayer carries out fillet processing.
The described reflux interlayer 2 with a thickness of 800mm to 1000mm.
The reflux interlayer 2, which is that steel I-beam is stainless steel outer packed, to be made.
Preferably, the air-flow jet pipe 3 is in contraction moulding surface structure.
4 material of baffle is steel plate.
9 material of partition is steel plate.
The beneficial effects of the present invention are: freezing weather chamber size is big, the test of aircraft components, component and system can be carried out.
Implementation through the invention can establish stable flow field, effectively realize large scale space in flowing field stability and uniformly
Property and each control parameter uniformity, guarantee freezing weather room flow field quality meet the requirements.
Detailed description of the invention
Fig. 1 is the flow field rock-steady structure schematic diagram of freezing weather room；
In figure: 1. flow deflectors；2. flow back interlayer；3. air-flow jet pipe；4. baffle；5. blower；6. flow straightening grid；7. diffusion
Pipe；8 coolers；9. partition.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples:
As shown in Figure 1, the Major Ground Test that freezing weather room is a kind of analog low temperature, wind speed and icing cloud and mist is set
Standby, this freezing weather room is using single vertical runner pattern that flows back, rectangular-shaped loops, vertical.Climatic chamber length is 22 meters, width
12 meters, 11.5 meters of height.Freezing weather room is divided into upper layer and lower layer by reflux interlayer 2, and the distance away from freezing weather room bottom is 7
Rice, about 4 meters away from top.Reflux interlayer 2 is equidistant with freezing weather room inner left wall and right side inner wall in the longitudinal direction,
It is 3 meters or so；It is close in the direction of the width with the forward and backward inner wall in freezing weather room.
To reduce turning flow losses, flow uniformity is improved, reflux 2 both ends ventilation of interlayer is handled using fillet, knot
Ice climatic chamber corner location configures flow deflector 1.
Air-flow jet pipe 3 is mounted on freezing weather room lower layer, forms small size spout by shrinking, air-flow jet pipe 3 exports ruler
Very little wide 8000mm, high 1500mm.Air-flow jet pipe 3 uses shrinkage type face, and upper lower wall surface is shunk, and left and right wall surface is parallel, shrinkage ratio
2.5, it is 1.8 meters long, to guarantee that the cloud and mist sprayed is as uniform as possible.Baffle 4 is used to close between inner wall around air-flow jet pipe 3,
Guarantee that air-flow all passes through from air-flow jet pipe 3, avoids the formation of air-flow crossfire.
Using three axial flow blowers specially designed 5, every typhoon amount is all larger than 115,200m3/h, and stagnation pressure rises 600Pa.Wind
Machine 5 is arranged side by side in parallel, ensure that the uniformity in air-out volume and flow field.Flow straightening grid 6 is installed to be rectified before blower 5, is protected
Demonstrate,prove the uniform job stability of incoming flow of blower 5；Diffuser pipe 7 is arranged in 5 exit of blower, is used for steady air flow, reduces pressure damage
It loses.
Cooler 8 is mounted on reflux interlayer 2, uses partition 9 to close between inner wall around cooler 8, guarantees air
Sufficiently flow through cooler 8.The upper layer of freezing weather room is as reflux road, and reflux interlayer 2 is stainless steel outer packed using steel I-beam, layer
Thick 800mm.
When freezing weather room works, blower 5 is dried, air-flow, by diffuser pipe 7 and turning, air-flow jet pipe 3, into lower layer
Test area, then upper layer is flowed back by turning, successively through subcooler 8 and flow straightening grid 6, enter 5 region of blower.So
Repeatedly, it is circulated in air duct.
Claims (7)
1. a kind of freezing weather room flow field rock-steady structure, characterized in that the freezing weather room includes reflux interlayer (2), gas
Flow jet pipe (3), baffle (4), blower (5), flow straightening grid (6), diffuser pipe (7), cooler (8), partition (9)；The icing
Reflux interlayer (2) is installed, freezing weather room is divided into upper layer and lower layer by the reflux interlayer (2), and away from knot inside climatic chamber
Distance at the top and bottom of ice climatic chamber is 1:1.5 between 1:2 than range, away from freezing weather room inner left wall and right side inner wall
Distance L it is equal, and distance L account for total length range be 10% to 15%；The air-flow jet pipe (3) is mounted on lower layer, gas
Flow uses baffle (4) to close around jet pipe (3) outlet between inner wall；The blower (5) be arranged side by side in parallel reflux every
Above layer (2)；The flow straightening grid (6) is mounted on before blower (5)；Blower (5) exit setting diffuser pipe (7) is simultaneously installed
In reflux interlayer (2)；The cooler (8) is mounted in reflux interlayer (2) and is located at before flow straightening grid (6), cooler
(8) partition (9) are used to close between inner wall around.
2. flow field rock-steady structure according to claim 1, characterized in that reflux interlayer (2) the two sides ventilation into
The processing of row fillet.
3. flow field rock-steady structure according to claim 1 or 2, characterized in that the reflux interlayer (2) with a thickness of
800mm to 1000mm.
4. flow field rock-steady structure according to claim 1 or 2, characterized in that the reflux interlayer (2) is steel I-beam
It is stainless steel outer packed to be made.
5. flow field rock-steady structure according to claim 1 or 2, characterized in that the air-flow jet pipe (3) is in shrinkage type face
Structure.
6. flow field rock-steady structure according to claim 1 or 2, characterized in that baffle (4) material is steel plate.
7. flow field rock-steady structure according to claim 1 or 2, characterized in that partition (9) material is steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507087.6A CN109733639A (en) | 2018-12-11 | 2018-12-11 | A kind of freezing weather room flow field rock-steady structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507087.6A CN109733639A (en) | 2018-12-11 | 2018-12-11 | A kind of freezing weather room flow field rock-steady structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109733639A true CN109733639A (en) | 2019-05-10 |
Family
ID=66358750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811507087.6A Pending CN109733639A (en) | 2018-12-11 | 2018-12-11 | A kind of freezing weather room flow field rock-steady structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109733639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729762A (en) * | 2021-03-29 | 2021-04-30 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for measuring uniformity of icing grid and cloud and mist field |
| CN117313183A (en) * | 2023-11-28 | 2023-12-29 | 北京理工大学 | Method for establishing digital twin system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202973701U (en) * | 2012-11-08 | 2013-06-05 | 中国电器科学研究院有限公司 | Snowfall device for artificial climate environmental test chamber |
| CN203247875U (en) * | 2013-04-24 | 2013-10-23 | 武汉航空仪表有限责任公司 | Pressure balancing device for freezing climate chamber |
| CN104122846A (en) * | 2013-04-24 | 2014-10-29 | 武汉航空仪表有限责任公司 | Temperature stabilizing method of icing test of icing wind tunnel or icing climate chamber |
| CN104122063A (en) * | 2013-04-24 | 2014-10-29 | 武汉航空仪表有限责任公司 | Freezing weather chamber |
| CN107200147A (en) * | 2017-06-05 | 2017-09-26 | 中电科芜湖通用航空产业技术研究院有限公司 | Jelly cloud icing temperature control simulation laboratory suitable for middle-size and small-size aircraft |
-
2018
- 2018-12-11 CN CN201811507087.6A patent/CN109733639A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202973701U (en) * | 2012-11-08 | 2013-06-05 | 中国电器科学研究院有限公司 | Snowfall device for artificial climate environmental test chamber |
| CN203247875U (en) * | 2013-04-24 | 2013-10-23 | 武汉航空仪表有限责任公司 | Pressure balancing device for freezing climate chamber |
| CN104122846A (en) * | 2013-04-24 | 2014-10-29 | 武汉航空仪表有限责任公司 | Temperature stabilizing method of icing test of icing wind tunnel or icing climate chamber |
| CN104122063A (en) * | 2013-04-24 | 2014-10-29 | 武汉航空仪表有限责任公司 | Freezing weather chamber |
| CN107200147A (en) * | 2017-06-05 | 2017-09-26 | 中电科芜湖通用航空产业技术研究院有限公司 | Jelly cloud icing temperature control simulation laboratory suitable for middle-size and small-size aircraft |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729762A (en) * | 2021-03-29 | 2021-04-30 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for measuring uniformity of icing grid and cloud and mist field |
| CN117313183A (en) * | 2023-11-28 | 2023-12-29 | 北京理工大学 | Method for establishing digital twin system |
| CN117313183B (en) * | 2023-11-28 | 2024-02-02 | 北京理工大学 | Method for establishing digital twin system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201187850Y (en) | Pipe type indirect evaporation cooling and spraying type direct evaporation cooling composite air conditioner unit | |
| CN103245017B (en) | The off-premises station of enclosed distributary plate wing dew point indirect evaporative cooling | |
| CN104864739A (en) | Subarea separated water-saving, fog-eliminating and anti-icing counter flow cooling tower | |
| CN104019507B (en) | The multi fan Evaporative Cooling Air-conditioning System that tubular type is combined with vaporizing type air conditioner indirectly | |
| CN102620597B (en) | Bottom air admission type closed cooling tower | |
| CN104122063A (en) | Freezing weather chamber | |
| RU2445563C1 (en) | Combined cooling tower with rational system of water reuse | |
| CN109733639A (en) | A kind of freezing weather room flow field rock-steady structure | |
| CN204854396U (en) | Novel closed heat dissipation tower | |
| CN104165532A (en) | Air cooling-wet cooling combined type water-saving fog-dispersing cooling tower | |
| CN108548431A (en) | A kind of Multi-stage jet spraying gravity water return Blower-free non-filling type cooling device | |
| CN101435663B (en) | Reversed flow heat transfer eddy flow secondary atomizing induced draft cooling tower | |
| CN201364040Y (en) | Packless cyclone atomized cooling tower | |
| CN105202942A (en) | Water-saving and mist-dispersing cooling tower | |
| CN102679480A (en) | Dew point indirect evaporation cooler with plate-tube combined structure | |
| CN113464190A (en) | Cooling device for high-ground-temperature geological tunnel | |
| CN204705224U (en) | Subregion cuts off the anti-freeze counterflow cooling tower of water saving fog dispersal | |
| CN203964233U (en) | A kind of recovery type evaporative cooling air conditioning unit | |
| CN203215898U (en) | Cross-flow plate-fin indirect evaporative cooling outdoor unit | |
| RU2624073C1 (en) | Combined cooling tower with rational water recycling system | |
| CN104596005A (en) | Water-saving pipe-wrapped-by-filler type evaporative cooling air-conditioning system | |
| CN204665780U (en) | Indoor Simulation of Snowfall tuyere device | |
| RU2528223C1 (en) | Combined cooling tower with rational system of return water supply | |
| CN206772074U (en) | Circulating water Tower System | |
| CN104121649A (en) | Gas-water double-travel contact heat recycling type evaporative cooling water chiller unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |