CN108871060A - Inhibit the emission system of periphery, high-order jet noise function with water spray - Google Patents
Inhibit the emission system of periphery, high-order jet noise function with water spray Download PDFInfo
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- CN108871060A CN108871060A CN201810697636.4A CN201810697636A CN108871060A CN 108871060 A CN108871060 A CN 108871060A CN 201810697636 A CN201810697636 A CN 201810697636A CN 108871060 A CN108871060 A CN 108871060A
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- water
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- water spray
- periphery
- stage body
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
- F41F3/00—Rocket or torpedo launchers
- F41F3/04—Rocket or torpedo launchers for rockets
Abstract
A kind of band water spray inhibits the emission system of periphery, high-order jet noise function, including level-one periphery water spray noise reduction system and a second level high position are sprayed water noise reduction system；Level-one periphery water spray noise reduction system can spray water to the periphery from flat pad stage body circumferential side wall, and emitted platform stage body diversion trench is inhibited to drop the high sound intensity jet noise of backwash；Second level high position water spray noise reduction system is arranged can spray water in flat pad stage body periphery for high-order water spraying mode from outside guide launder outlet, and formation second level periphery water spray water curtain inhibits diversion trench to go out the high sound intensity jet noise of oral reflex；The second level high position water spray noise reduction system can also spray water to flat pad stage body center simultaneously, form second-level inner water spray water curtain.The present invention can be effectively reduced rocket launching jet noise intensity, the high sound intensity jet noise for inhibiting the open space between emitted platform stage body lower part and diversion trench entrance to reflect upwards and the peripheral noise formed from the combustion gas stream that diversion trench outlet sprays.
Description
Technical field
It sprays water the present invention relates to a kind of band and inhibits the emission system of periphery, high-order jet noise function, belong to space launch
Thermal protection technology field.
Background technique
Rocket launching process can effectively control jet noise using water-jet technology, at the same can effective protection transmitting it is flat
Platform, parallel works.
It is main at present to rely on flat pad structure, erection truss spray cooling, noise reduction system are utilized in flat pad periphery,
Rocket is sprayed water using nozzle to stage body surface after taking off, and is realized stage body and stage body circumferentially cooling, decrease of noise functions, but is cooled down noise reduction
Effect can not be radiated stage body peripheral space.Large rocket emission process is emitted flat even if carrying out noise reduction using the above structure
Platform deflector hole is dropped and the combustion gas stream flow velocity that flows in diversion trench, acoustic pressure are still higher, the combustion sprayed from diversion trench outlet
The peripheral noise that air-flow is formed is still very strong, continues there is relatively strong influence to rocket, emission system.
Summary of the invention
Technology of the invention solves the problems, such as：It is peripheral, high-order to overcome the deficiencies of the prior art and provide a kind of band water spray inhibition
The emission system of jet noise function reduces rocket launching jet noise intensity, inhibits emitted platform stage body lower part and water conservancy diversion
The high sound intensity jet noise and export what the combustion gas stream sprayed was formed from diversion trench that open space between slot entrance reflects upwards
Peripheral noise.
The technical solution of the invention is as follows：Inhibit the emission system of periphery, high-order jet noise function with water spray, including
Level-one periphery water spray noise reduction system and second level high position water spray noise reduction system；The level-one periphery water spray noise reduction system can be from transmitting
Platform stage body circumferential side wall is sprayed water to the periphery, and emitted platform stage body diversion trench is inhibited to drop the high sound intensity jet noise of backwash；
The second level high position water spray noise reduction system setting can be from outside guide for high-order water spraying mode in flat pad stage body periphery
Launder outlet water spray forms second level periphery water spray water curtain, diversion trench is inhibited to go out the high sound intensity jet noise of oral reflex；It is described simultaneously
Second level high position water spray noise reduction system can also spray water to flat pad stage body center, form second-level inner water spray water curtain.
Flat pad stage body circumferential side frame is hollow structure, which is connected to external fluid delivery conduit road, built in formation
Formula water pipeline, is machined with level-one peripheral injector nozzles array on flat pad stage body surrounding side wall, in level-one peripheral injector nozzles array
Nozzle is connected with built-in water pipeline, constitutes level-one periphery water spray noise reduction system.
The plug-in water pipeline on flat pad stage body surrounding side wall, water pipeline are connected to external fluid delivery conduit road, water spray
Pipeline periphery is machined with level-one peripheral injector nozzles array, and the nozzle in level-one peripheral injector nozzles array is connected to the plug-in water pipeline,
Constitute level-one periphery water spray noise reduction system.
The nozzle opening is downward, and the angle of water (flow) direction and horizontal direction is 0~90 ° in nozzle.
The nozzle is non-bulge-structure or bulge-structure.
Second level high position water spray noise reduction system includes water main, upper hose, second level accumulator, second level inside nozzle array and two
Grade outer nozzle array；
Water flow from external fluid delivery conduit road is entered by water main, successively after upper hose and second level accumulator, by two
Grade inside nozzle array and second level outer nozzle array spray；
Nozzle array is sprayed water to flat pad stage body center on the inside of second level, forms second-level inner water spray water curtain；Outside second level
Side nozzle array guide launder outlet water spray forms second level periphery water spray water curtain.
Nozzle on the inside of the second level in nozzle array and second level outer nozzle array designs together, and structural shape is connection
Formula bilateral nozzle, T font bilateral nozzle or the double bilateral nozzle of alternating expression.
Nozzle array and second level outer nozzle array range transmission platform stage body upper surface 3-15m on the inside of the second level.
Supporting frame and the deflector hole for combustion gas stream row's pilot gas, supporting frame processing are provided on flat pad stage body
At the hollow structure being mutually communicated, built-in runner is formed, the built-in runner is connected to external fluid delivery conduit road, as flat pad
Cooling water flow conduits and water channel；It is offered and the built-in runner on supporting frame upper surface and side wall towards deflector hole
The water spray hole array of connection；
Flat pad stage body circumferential side frame is hollow structure, is connected to built-in runner, and flat pad stage body circumferential side frame
Upper surface is machined with the water injector array being connected to the built-in runner.
The water spray hole array of the supporting frame upper surface is made of the hole for water spraying of multiple built-in non-convex forms；Supporting frame face
The water spray hole array opened up on deflector hole side wall is made of multiple built-in hole for water sprayings, each built-in hole for water spraying be convex form or
Non- convex form；
The water injector array of flat pad stage body circumferential side frame upper surface is using high-order water discharge pattern, to flat pad platform
Body upper surface water spray.
Compared with prior art, the present invention has the advantages that：
(1) present invention forms level-one periphery water spray noise reduction system in flat pad stage body circumferential side wall, for the periphery
Water spray, the high sound intensity spray for effectively inhibiting the open space between emitted platform stage body lower part and diversion trench entrance to reflect upwards
Flow noise.
(2) present invention sprays water noise reduction system in a flat pad stage body periphery setting second level high position, can be from outside to water conservancy diversion
Slot outlet water spray, formation second level periphery water spray water curtain, to effectively inhibit outside the combustion gas stream formation that diversion trench outlet sprays
Enclose noise.
(3) as large rocket launch height is continuously increased, the loud noise source that rocket body combustion gas stream generates with
It moves up, the adaptability of the low clearance water injection system around flat pad stage body is restricted, second level high position water spray noise reduction of the present invention
System is high-order water spraying mode, nozzle height range transmission platform stage body upper surface 3-15m, can effectively inhibit constantly to move up
The high acoustic noise that rocket body combustion gas stream generates.
Detailed description of the invention
Fig. 1 is emission system main view of the present invention；
Fig. 2 is emission system top view of the present invention；
Fig. 3 is peripheral conduits and nozzle inner flow passage schematic diagram in the water spray noise reduction system of level-one periphery；
Fig. 4 is water spray noise reduction system water pipeline and nozzle cross-section schematic diagram, wherein (a) is built-in water pipeline and convex
Formula nozzle schematic diagram is played, (b) is plug-in water pipeline and convex type nozzle schematic diagram, is (c) built-in water pipeline and non-convex
Formula nozzle schematic diagram is played, (b) is plug-in water pipeline and non-convex type nozzle schematic diagram；
Fig. 5 is the nozzle arrangements pattern schematic diagram on the inside of second level in nozzle array and second level outer nozzle array；
Fig. 6 is flat pad upper surface schematic diagram.
Specific embodiment
The present invention is directed to develop a kind of emission system of the high-order jet noise function in band water spray inhibition periphery.In flat pad
The level-one periphery water spray noise reduction system sprayed water to the periphery is designed on stage body, and second level high position water spray noise reduction is designed around flat pad
System inhibits emitted platform deflector hole to drop the jet noise source region of backwash to reduce rocket launching jet noise intensity
Domain and the peripheral influence of noise range formed from the combustion gas stream that diversion trench outlet sprays.
As depicted in figs. 1 and 2, level-one periphery water spray noise reduction system can be from 1 circumferential side wall of flat pad stage body to the periphery
Water spray inhibits emitted 1 diversion trench 3 of platform stage body to drop the high sound intensity jet noise of backwash.
Level-one periphery is sprayed water, and there are two types of implementations for noise reduction system.A kind of implementation is：1 surrounding of flat pad stage body
Frame is hollow structure, which is connected to external fluid delivery conduit road, forms built-in water pipeline 15, flat pad stage body 1
Level-one peripheral injector nozzles array 4 is machined on surrounding side wall, the nozzle in level-one peripheral injector nozzles array 4 and built-in water pipeline 15
It is connected, constitutes level-one periphery water spray noise reduction system.It is illustrated in figure 3 peripheral conduits and spray in the water spray noise reduction system of level-one periphery
Mouth inner flow passage schematic diagram.
Another implementation is:The plug-in water pipeline 16 on 1 surrounding side wall of flat pad stage body, plug-in water pipeline
16 are connected to external fluid delivery conduit road, and plug-in 16 periphery of water pipeline is machined with level-one peripheral injector nozzles array 4, level-one peripheral injector nozzles battle array
Nozzle in column 4 is connected to the plug-in water pipeline 16, constitutes level-one periphery water spray noise reduction system.
In two kinds of implementations, nozzle opening is downward, and in nozzle the angle a of water (flow) direction and horizontal direction be 0~
90°.Nozzle is non-bulge-structure or bulge-structure.
It is illustrated in figure 4 water spray noise reduction system water pipeline and nozzle cross-section schematic diagram, wherein (a) is built-in sparge pipe
Road and convex type nozzle schematic diagram (b) are plug-in water pipeline and convex type nozzle schematic diagram, (c) are built-in water pipeline
And non-convex type nozzle schematic diagram, it (b) is plug-in water pipeline and non-convex type nozzle schematic diagram.
Built-in water pipeline 15 can both have been carried as a part of stage body, can also convey cooling water.Plug-in water spray
Pipeline then needs to build carrying of the support construction for pipeline and water around stage body.Through level-one periphery water spray noise reduction system nozzle
The water of ejection forms stage body level-one periphery water spray water curtain 5.
By stage body level-one periphery water spray water curtain 5, realizes and inhibit empty through the opening between stage body lower part and diversion trench entrance
Between the 2 high sound intensity jet noises reflected upwards.
A second level high position sprays water noise reduction system setting in the periphery of flat pad stage body 1, for high-order water spraying mode, nozzle height away from
It from flat pad stage body upper surface 3-15m, can spray water from outside guide launder outlet 10, form second level periphery water spray water curtain 9,
Diversion trench is inhibited to go out the high sound intensity jet noise of oral reflex；Second level high position water spray noise reduction system can also be to flat pad platform simultaneously
1 center of body water spray forms second-level inner water spray water curtain.
Second level high position water spray noise reduction system includes water main 12, upper hose 11, second level accumulator 6, second level inside nozzle array
Column 7 and second level outer nozzle array 8.
Water flow from external fluid delivery conduit road is entered by the entrance 13 of water main 12, successively passes through upper hose 11 and second level
After accumulator 6, sprayed by nozzle array 7 on the inside of second level and second level outer nozzle array 8.Water main, upper hose, second level accumulator
It is connected state with the nozzle interior cavity on the inside of all second levels in nozzle array 7 and second level outer nozzle array 8, so as to cold
But water smoothly flows out secondary nozzle.
Nozzle array 7 is sprayed water to 1 center of flat pad stage body on the inside of second level, forms second-level inner water spray water curtain；Second level
8 guide launder outlet of outer nozzle array water spray forms second level periphery water spray water curtain 9.
Nozzle on the inside of second level in nozzle array 7 and second level outer nozzle array 8 designs together, and structural shape is communication type
Bilateral nozzle 17, T font bilateral nozzle 18 or the double bilateral nozzle 19 of alternating expression.As shown in Figure 5.
Second level high position water spray noise reduction system relies on timing and rocket to take off height successively to the combustion of launching centre area in addition to having
Air-flow water spray inhibits outside high sound intensity jet noise, by the spray for adding certain amount, reversed diversion trench outlet water spray to the periphery
Mouth array inhibits diversion trench to go out the high sound intensity jet noise of oral reflex.
In addition, realizing that the present invention is also arranged one on flat pad stage body while inhibiting periphery, high-order jet noise
Serial hole for water spraying, to realize the cooling noise reduction of transmitting station.Specific design is as follows：As shown in fig. 6, on flat pad stage body 1
It is provided with supporting frame 20 and the deflector hole 21 for combustion gas stream row's pilot gas, supporting frame 20 is processed into the hollow knot being mutually communicated
Structure forms built-in runner, and the built-in runner is connected to external fluid delivery conduit road, the cooling water flow conduits and water supply as flat pad
Channel；The water spray hole array being connected to built-in runner is offered on 20 upper surface of supporting frame and side wall towards deflector hole 21.
1 circumferential side frame 23 of flat pad stage body is hollow structure, is connected to built-in runner, and in 1 circumferential side frame 23 of flat pad stage body
Surface is machined with the water injector array 24 being connected to built-in runner.
The water spray hole array of 20 upper surface of supporting frame is made of the hole for water spraying of multiple built-in non-convex forms；20 face of supporting frame
The water spray hole array opened up on 21 side wall of deflector hole is made of multiple built-in hole for water sprayings, and each built-in hole for water spraying is convex form
Or non-convex form.The water injector array 24 of 1 circumferential side frame upper surface of flat pad stage body is using a high position (away from flat pad platform
Body 0.5-2m) water discharge pattern, it sprays water to 1 upper surface of flat pad stage body.The water spray of 1 peripheral frame upper surface of flat pad stage body fills
It sets the water spraying direction of array 24 diagonally downward, is 0-45 ° with horizontal direction angle.Above-mentioned design make full use of inside stage body and its
Peripheral space structure plays the integrated functionality of flat pad itself frame structure, and the drop of stage body is realized by multistage design of spraying water
Temperature drop is made an uproar.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
Claims (10)
1. inhibiting the emission system of periphery, high-order jet noise function with water spray, it is characterised in that：It sprays water and drops including level-one periphery
System of making an uproar and second level high position water spray noise reduction system；The level-one periphery water spray noise reduction system can be from flat pad stage body (1) week
It sprays water to the periphery to side wall, emitted platform stage body (1) diversion trench is inhibited to drop the high sound intensity jet noise of backwash；The second level
High position water spray noise reduction system setting can go out in flat pad stage body (1) periphery for high-order water spraying mode from outside to diversion trench
Mouth water spray forms second level periphery water spray water curtain, diversion trench is inhibited to go out the high sound intensity jet noise of oral reflex；The second level is high simultaneously
Position water spray noise reduction system can also spray water to flat pad stage body (1) center, form second-level inner water spray water curtain.
2. band water spray according to claim 1 inhibits the emission system of periphery, high-order jet noise function, feature exists
In：Flat pad stage body (1) circumferential side frame is hollow structure, which is connected to external fluid delivery conduit road, is formed built-in
Water pipeline (15) is machined with level-one peripheral injector nozzles array (4), level-one peripheral injector nozzles on flat pad stage body (1) surrounding side wall
Nozzle in array (4) is connected with built-in water pipeline (15), constitutes level-one periphery water spray noise reduction system.
3. band water spray according to claim 1 inhibits the emission system of periphery, high-order jet noise function, feature exists
In：The plug-in water pipeline on flat pad stage body (1) surrounding side wall, water pipeline are connected to external fluid delivery conduit road, sparge pipe
Road periphery is machined with level-one peripheral injector nozzles array (4), and the nozzle in level-one peripheral injector nozzles array (4) and the plug-in water pipeline connect
It is logical, constitute level-one periphery water spray noise reduction system.
4. band water spray according to claim 2 or 3 inhibits the emission system of periphery, high-order jet noise function, feature
It is：The nozzle opening is downward, and the angle of water (flow) direction and horizontal direction is 0~90 ° in nozzle.
5. band water spray according to claim 4 inhibits the emission system of periphery, high-order jet noise function, feature exists
In：The nozzle is non-bulge-structure or bulge-structure.
6. band water spray according to claim 1 inhibits the emission system of periphery, high-order jet noise function, feature exists
In：Second level high position water spray noise reduction system includes water main (12), upper hose (11), second level accumulator (6), second level inside nozzle array
Arrange (7) and second level outer nozzle array (8)；
Water flow from external fluid delivery conduit road is entered by water main (12), successively passes through upper hose (11) and second level accumulator (6)
Afterwards, it is sprayed by nozzle array (7) on the inside of second level and second level outer nozzle array (8)；
Nozzle array (7) is sprayed water to flat pad stage body (1) center on the inside of second level, forms second-level inner water spray water curtain；Second level
Outer nozzle array (8) guide launder outlet water spray forms second level periphery water spray water curtain.
7. band water spray according to claim 6 inhibits the emission system of periphery, high-order jet noise function, feature exists
In：Nozzle on the inside of the second level in nozzle array (7) and second level outer nozzle array (8) designs together, and structural shape is to connect
General formula bilateral nozzle, T font bilateral nozzle or the double bilateral nozzle of alternating expression.
8. band water spray according to claim 6 inhibits the emission system of periphery, high-order jet noise function, feature exists
In：Nozzle array (7) and second level outer nozzle array (8) range transmission platform stage body upper surface 3-15m on the inside of the second level.
9. band water spray according to claim 1 inhibits the emission system of periphery, high-order jet noise function, feature exists
In：Supporting frame (20) and the deflector hole (21) for combustion gas stream row's pilot gas, bearing are provided on flat pad stage body (1)
Frame (20) is processed into the hollow structure being mutually communicated, and forms built-in runner, and the built-in runner is connected to external fluid delivery conduit road, makees
For the cooling water flow conduits and water channel of flat pad；It is opened on supporting frame (20) upper surface and side wall towards deflector hole (21)
Equipped with the water spray hole array being connected to the built-in runner；
Flat pad stage body (1) circumferential side frame is hollow structure, is connected to built-in runner, and flat pad stage body (1) surrounding
Frame upper surface is machined with the water injector array being connected to the built-in runner.
10. band water spray according to claim 9 inhibits the emission system of periphery, high-order jet noise function, feature exists
In：The water spray hole array of supporting frame (20) upper surface is made of the hole for water spraying of multiple built-in non-convex forms；Supporting frame
(20) it is made of towards the water spray hole array opened up on deflector hole (21) side wall multiple built-in hole for water sprayings, each built-in hole for water spraying is
Convex form or non-convex form；
The water injector array of flat pad stage body (1) circumferential side frame upper surface is using high-order water discharge pattern, to flat pad platform
Body (1) upper surface water spray.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810697636.4A CN108871060B (en) | 2018-06-29 | 2018-06-29 | Emission system with functions of inhibiting peripheral and high-order jet flow noise by water spraying |
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| CN201810697636.4A CN108871060B (en) | 2018-06-29 | 2018-06-29 | Emission system with functions of inhibiting peripheral and high-order jet flow noise by water spraying |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081580A (en) * | 2019-04-19 | 2019-08-02 | 西北工业大学 | A kind of air pipeline device humidifying noise reduction |
| CN110307751A (en) * | 2019-06-28 | 2019-10-08 | 南京理工大学 | A kind of tapered guiding device for multi nozzle Launch Vehicle Platform |
| CN111810315A (en) * | 2020-06-30 | 2020-10-23 | 西安航天动力试验技术研究所 | Noise absorption guiding device based on flexible water curtain |
| CN113188819A (en) * | 2021-04-12 | 2021-07-30 | 北京航天发射技术研究所 | Rocket launching water spraying noise reduction effect evaluation method |
| CN113606990A (en) * | 2021-06-29 | 2021-11-05 | 中国人民解放军63921部队 | Follow rocket tail flame high-order automatic water spray noise reduction system |
| CN114046874A (en) * | 2022-01-11 | 2022-02-15 | 中国空气动力研究与发展中心高速空气动力研究所 | Test device for measuring supersonic jet near-field noise |
| CN114703985A (en) * | 2022-04-01 | 2022-07-05 | 广州协安建设工程有限公司 | Herringbone sound absorption wall structure and construction method thereof |
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| CN103712522A (en) * | 2012-09-29 | 2014-04-09 | 北京航天发射技术研究所 | Rocket launching system with water spraying, cooling and denoising functions |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081580A (en) * | 2019-04-19 | 2019-08-02 | 西北工业大学 | A kind of air pipeline device humidifying noise reduction |
| CN110307751A (en) * | 2019-06-28 | 2019-10-08 | 南京理工大学 | A kind of tapered guiding device for multi nozzle Launch Vehicle Platform |
| CN111810315A (en) * | 2020-06-30 | 2020-10-23 | 西安航天动力试验技术研究所 | Noise absorption guiding device based on flexible water curtain |
| CN111810315B (en) * | 2020-06-30 | 2021-08-17 | 西安航天动力试验技术研究所 | Noise absorption guiding device based on flexible water curtain |
| CN113188819A (en) * | 2021-04-12 | 2021-07-30 | 北京航天发射技术研究所 | Rocket launching water spraying noise reduction effect evaluation method |
| CN113606990A (en) * | 2021-06-29 | 2021-11-05 | 中国人民解放军63921部队 | Follow rocket tail flame high-order automatic water spray noise reduction system |
| CN114046874A (en) * | 2022-01-11 | 2022-02-15 | 中国空气动力研究与发展中心高速空气动力研究所 | Test device for measuring supersonic jet near-field noise |
| CN114703985A (en) * | 2022-04-01 | 2022-07-05 | 广州协安建设工程有限公司 | Herringbone sound absorption wall structure and construction method thereof |
| CN114703985B (en) * | 2022-04-01 | 2023-10-31 | 广州协安建设工程有限公司 | Herringbone sound-absorbing wall structure and construction method thereof |
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