CN106837609A - A kind of change propulsive solid-liquid rocket two-way centrifugal injector structure - Google Patents
A kind of change propulsive solid-liquid rocket two-way centrifugal injector structure Download PDFInfo
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- CN106837609A CN106837609A CN201710224744.5A CN201710224744A CN106837609A CN 106837609 A CN106837609 A CN 106837609A CN 201710224744 A CN201710224744 A CN 201710224744A CN 106837609 A CN106837609 A CN 106837609A
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- road
- main road
- knockout
- spray
- straight hole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/72—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid and solid propellants, i.e. hybrid rocket-engine plants
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The present invention discloses a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, including spray lid, knockout, spout, housing composition.Main road is from spray lid vertically into spray lid lower end fluid collection chamber, and point three tunnels pass through knockout, tangential in spout to spray into spin chamber.Oxidant pair road sideling enters fluid collection chamber in the middle of knockout from spray lid, and point three tunnels are tangential in knockout to spray into spin chamber.Spin chamber is by knockout, spout around forming.Under heavy traffic condition, main road pair road is while spray oxidant；In the case of low discharge, only main road spray oxidant.So as to realize efficient burning of the big flow regulation than under.The present invention is atomized for the spray of change propulsive solid-liquid rocket oxidant, and in the case of big flow regulation ratio, efficiency of combustion is higher.
Description
Technical field
The invention belongs to solid-liquid rocket field, and in particular to a kind of change propulsive solid-liquid rocket two-way centrifugation
Formula ejector filler structure.
Background technology
Rocket engine with thrust control ability all has in many cases space transportation and space maneuver
There is technical superiority, it is possible to achieve Best Thrust is controlled, so that carrying capacity reaches maximum.
The boosting flight of manned space flight is advanced using Variable Thrust Engine, can strictly control the mistake of astronaut
Carry, it is ensured that the flight safety of astronaut；For the spacecrafts rendezvous and orbit maneuver of spacecraft, Variable Thrust Engine can be carried
Height manipulates the flexibility of control.If guided missile system is advanced using Variable Thrust Engine, missile flight rail can be improved
The mobility in road, so as to improve the penetration ability of missile armament.The soft landing without air celestial body surface and machine in moon etc.
Move in-flight, Variable Thrust Engine is currently the only available power set.
Ejector filler is a critical component in rocket engine, is directly connected to igniting, the burning effect of rocket engine
Rate and operation stability.In the design of change propulsive solid-liquid rocket, the design of adjustable ejector filler is particularly important.Change propulsive solid-liquid
During the regulation of thrust on a large scale, great changes will take place for oxidizer flow rate engine for rocket engine, using conventional spray
Device is difficult to ensure that injection pressure drop and engine performance in whole work process.Conventional adjustable ejector filler has pintle formula to spray at present
Note device and centrifugal injector, adjustable ejector filler requirement, the performance of adjustable ejector filler small with the change of flow in injection pressure drop, directly
Connect the thrust regulation ratio and spray burning performance for determining engine.
The content of the invention
Regarding to the issue above, the present invention proposes a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure,
The design of centrifugal injector is improved in two-way centrifugal injector, it is ensured that while injection pressure drop and spray performance, enter one
Step expands the regulation ratio of flow.
A kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, including spray lid, knockout, spout and shell
Body；Spout, knockout are column with spray lid, are coaxially disposed from front to back in tubular shell.
The spray is covered with secondary road inclined hole A, main road straight hole A, main road fluid collection chamber.Have on knockout secondary road fluid collection chamber,
Secondary road inclined hole B, secondary road straight hole, secondary road tangential slot, spin chamber's leading portion and main road straight hole B.There is main road straight hole C, eddy flow on spout
Room back segment, main road tangential slot and spray orifice.
Above-mentioned spin chamber's leading portion is connected with spin chamber's back segment, forms spin chamber.Main road straight hole A is connected with main road fluid collection chamber.
Main road fluid collection chamber is connected with main road straight hole B；Main road straight hole B is connected with main road straight hole C, main road straight hole C by main road tangential slot with
Spin chamber's back segment connection.Main road oxidant after main road straight hole A- main roads fluid collection chamber-main road straight hole B- main road straight holes C, is passed through successively
Spin chamber is tangentially sprayed into by main road tangential slot.
Above-mentioned secondary road inclined hole A is connected with secondary road fluid collection chamber；Secondary road fluid collection chamber is connected by pair road inclined hole B with secondary road straight hole；
Secondary road straight hole passes through secondary road tangential slot and is connected with spin chamber's leading portion.Secondary road oxidant successively through secondary road inclined hole A- pairs road fluid collection chamber-
After secondary road inclined hole B- pairs road straight hole, spin chamber is tangentially sprayed into via secondary road tangential slot.
Above-mentioned spin chamber connects with spray orifice, and oxidant forms eddy flow in spin chamber, accelerates to be sprayed by spray orifice in spray orifice.
The advantage of the invention is that：
(1) change propulsive solid-liquid rocket two-way centrifugal injector structure of the present invention, is set by two-way feed flow spray
Meter, can realize 10:In the case of 1 Flow-rate adjustment ratio, oxidant can be atomized very well, realize efficiency of combustion higher.
(2) change propulsive solid-liquid rocket two-way centrifugal injector structure of the present invention, main road, secondary road oxidant spray
Spin chamber's outlet is shared, realizes that the spray under the conditions of different flow is atomized requirement by changing inlet area, with structure
Simply, the advantages of good reliability.
(3) change propulsive solid-liquid rocket two-way centrifugal injector structure of the present invention, compact conformation, it is adaptable to fly
Experiment.
(4) change propulsive solid-liquid rocket two-way centrifugal injector structure of the present invention, tangential slot entrance is cut by rectangle
Face groove and end face around forming, easy to process, low cost.
Brief description of the drawings
Fig. 1 is change propulsive solid-liquid rocket two-way centrifugal injector structure overall structure sectional view of the present invention；
Fig. 2 is knockout structure section view in change propulsive solid-liquid rocket two-way centrifugal injector structure of the present invention
Figure；
Fig. 3 is knockout structure front view in change propulsive solid-liquid rocket two-way centrifugal injector of the present invention；
Fig. 4 is knockout structure rearview in change propulsive solid-liquid rocket two-way centrifugal injector of the present invention；
Fig. 5 is spout structure sectional view in change propulsive solid-liquid rocket two-way centrifugal injector of the present invention；
Fig. 6 is spout structure rearview in change propulsive solid-liquid rocket two-way centrifugal injector of the present invention；
When Fig. 7 is that change propulsive solid-liquid rocket two-way centrifugal injector of the present invention works, major-minor road oxidant stream
Xiang Tu.
In figure：
1- spray lid 2- knockout 3- spouts
The secondary road inclined hole A 102- main road straight holes A of 4- housings 101-
103- main road fluid collection chamber 104- seal boss A 201- pairs road fluid collection chamber
202- pairs road inclined hole B 203- pairs road straight hole 204- pairs road tangential slot
205- spin chambers leading portion 206- main road straight hole B 207- sealed grooves B
208- annular groove C 209- seal boss B 210- positioning convex
301- main road straight hole C 302- spin chambers back segment 303- main road tangential slots
304- spray orifice 305- annular groove A 306- location holes
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Change propulsive solid-liquid rocket two-way centrifugal injector structure of the present invention, including spray lid 1, knockout 2, spout
3 with housing 4, as shown in Figure 1.
The spout 3, knockout 2 are column with spray lid 1, are coaxially disposed from front to back in tubular shell 4, outer wall and shell
Circumferentially coordinate between the inwall of body 4.Wherein, shoulder coordinates positioning between the front end of spout 3 and the front end circumference of housing 4；After spray lid 1 and housing 4
The circumferential upper shoulder in end coordinates positioning, and is connected by screw and housing 4, while being compressed spout 3 and knockout 2 by spray lid 1 solid
Due in housing 4.Sealed using tongue and groove O-ring between above-mentioned spout 3 and knockout 2, and between knockout 2 and spray lid 1.
The spray lid 1 is used to connect supply system pipeline.There is secondary road inclined hole A101, main road straight hole A102, master on spray lid 1
Road fluid collection chamber 103, as shown in Figure 1.Wherein, secondary road inclined hole 101 is the through hole that the front and back sides of lid 1 are sprayed in insertion, secondary road inclined hole axis
It it is 30~60 ° with spray lid 1 axis angle.Main road straight hole A102 is axially opened up along spray lid 1, is not done between secondary road inclined hole 101
Relate to.Annular groove is provided with the spray front end face circumference of lid 1, cavity volume is formed between the rear end face of knockout 2, as main road fluid collection chamber 103.On
The arrival end welding pressure inlet of Shu Fu roads inclined hole 101, is connected by pressure inlet with secondary road oxidant pipeline；Secondary road inclined hole 101
The port of export is connected with the knockout fluid collection chamber 201 designed on knockout 2.Main road straight hole A arrival ends weld pressure inlet, by adapter
Mouth is connected with main road oxidant pipeline；The port of export of main road straight hole A102 is connected with annular groove liquid collecting cavity 103.By above-mentioned side
Formula, designs secondary road inclined hole 101 and main road straight hole A102 on spray lid 1, is conducive to increasing the welding space of pressure inlet, is conducive to master
The spatial arrangement of road fluid collection chamber 103.
The knockout 2 is used to isolate main road oxidant with secondary road oxidant, and spin chamber is screwed in respectively.On knockout 2
With secondary road fluid collection chamber 201, secondary road inclined hole B202, secondary road straight hole 203, secondary road tangential slot 204, spin chamber's leading portion 205 and main road
Straight hole B206, as shown in Figure 2, Figure 3, Figure 4.It is shown.Wherein, secondary road fluid collection chamber 201 is coaxially opened on the trailing flank of knockout 2,
Cavity volume is formed between the spray front end face of lid 1.Secondary road straight hole 203 be axially be opened in along knockout 2 it is blind on the front end face of knockout 2
Hole, it is circumferential uniform three.Secondary road inclined hole B202 is circumferentially uniform three, and secondary road inclined hole B202 is axially with the axis angle of knockout 2
45~75 °.The front end Jun Yufu roads fluid collection chamber connection of three Ge Fu roads inclined holes B202, rear end connects with three Ge Fu roads straight holes 203 respectively
It is logical.Secondary road tangential slot 204 is opened on the leading flank of knockout 2, is three bar-shaped troughs, rectangular cross-section, square-section the ratio of width to height
Take between 1~2, preferably 1.5.Three Tiao Fu roads tangential slot 205 is circumferential uniform, and arrival end angle differs 120 degree, respectively with three
Secondary road straight hole is tangent, and Jun Yufu roads fluid collection chamber 201 is tangent.The arrival end of three Tiao Fu roads tangential slots 205 respectively with three Ge Fu roads
Straight hole 203 is connected, and port of export Jun Yufu roads fluid collection chamber 201 is connected.Spin chamber's leading portion 205 is coaxially opened in the front end face of knockout 2
On, connected with the spin chamber's back segment 302 designed on spout 3, collectively constitute spin chamber.Main road straight hole B206 is along knockout 2
Axially open up, the through hole of the front/rear end of insertion knockout 2, circumferential uniform three and adjacent main road straight hole B206 and secondary road
The center spacing of straight hole 203 is equal.Three arrival ends of main road straight hole 206 are connected with the main road fluid collection chamber 103 on spray lid 1, are gone out
Mouth end connects with the main road straight hole C301 opened up on spout 3 respectively.
There is main road straight hole C301, spin chamber's back segment 302, main road tangential slot 303 and spray orifice 304 on the spout 3, such as scheme
5th, shown in Fig. 6.Wherein, main road straight hole C301 is axially opened in the blind hole on the trailing flank of spout 3 along spout, circumferential uniform three,
Connected with three main road straight hole B206 on knockout 2 respectively.Spin chamber's back segment 302 is coaxially opened on the trailing flank of spout 3.It is main
Road tangential slot 303 is opened on the trailing flank of spout 3, is three bar-shaped troughs, rectangular cross-section, square-section the ratio of width to height take 1~2 it
Between, preferably 1.5.Three main road tangential slot 303 is circumferential uniform, and arrival end angle differs 120 degree, respectively with three main road straight holes
C301 is tangent, and tangent with spin chamber's back segment 302.The above-mentioned size of three main road tangential slots, 303 and three Tiao Fu roads tangential slot 204
All same, and three main road tangential slots 303 and three Tiao Fu roads tangential slots 204 arrival end ejector filler axial location it is different two
Section alternate, the angle between main road tangential slot 303 and three Tiao Fu roads tangential slots 204 differs 60 degree.The front end face of spout 3
On be provided with spray orifice 304；The arrival end of spray orifice 304 is connected with spin chamber's back segment 302, and the port of export is designed as converging portion.
When the change propulsive solid-liquid rocket two-way centrifugal injector of said structure works, it is divided into two kinds of operating modes：Such as
Shown in Fig. 7, under big flow operating mode, main road and secondary road are while spray oxidant；Wherein, main road oxidant is by the master on spray lid 1
Road straight hole A102 enters main road fluid collection chamber 103, and then point three tunnels enter spray through three main road straight hole B206 on knockout 2 respectively
Three main road straight hole C301 on mouth 3, finally tangentially spray into spin chamber via three main road tangential slots 303.
Secondary road oxidant enters the Shang Fu roads fluid collection chamber 201 of knockout 2 by the Shang Fu roads inclined hole A101 of spray lid 1, then divides
Three tunnels enter three Tiao Fu roads straight holes 203 through three Tiao Fu roads inclined hole B202 on knockout respectively, finally tangential via three Tiao Fu roads
Groove 204, tangentially sprays into spin chamber.
Main road forms eddy flow with the oxidant of secondary road supply in spin chamber, accelerates at the spray orifice 304 of spout 3, by spraying
Hole 304 sprays, and forms liquid film, is crushed in the presence of aerodynamic force, surface tension etc., is atomized.
In the case of low discharge, only main road spray oxidant, so as to realize efficient burning of the big flow regulation than under.
In change propulsive solid-liquid rocket two-way centrifugal injector structure of the present invention, set in the trailing flank circumference of spout 3
In respect of annular groove A305, built-in sealing ring, for the sealing between spout 3 and knockout 2.Set in the trailing flank circumference of knockout 2
In respect of annular seal grooves B207, built-in sealing ring；Sealed groove B207 is located between secondary road straight hole 203 and the outer rim of knockout 2,
For the sealing between knockout 2 and spray lid 1.Sealed groove C208, built-in sealing are designed with the trailing flank circumference of knockout 2
Circle；Sealed groove C208 is located between secondary road fluid collection chamber 201 and secondary road straight hole 203, for entering between knockout 2 and spray lid 1
One step is sealed, while isolating main road oxidant with secondary road oxidant.Ring packing boss is designed with the leading flank circumference of knockout 2
A209, for coordinating grafting with annular groove A305, compresses the sealing ring in annular groove A305.In the spray leading flank circumference of lid 1
Ring packing boss A104 is designed with, for coordinating grafting with annular groove B207, the sealing ring in annular groove B207 is compressed；
Sealing ring in annular groove C208 is compressed by the front end face of spray lid 1.
The leading flank outer rim of above-mentioned knockout 2 is also devised with positioning convex 210, while being designed with the trailing flank outer rim of spout 3
Location hole 306, coordinates by between positioning convex 210 and location hole 306, and circumference when realizing being installed between knockout 2 and spout 3 is determined
Position, ensures that knockout 2 meets with the installation position of spout 3 and wants.
Claims (10)
1. a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, it is characterised in that：Including spray lid, point liquid
Device, spout and housing；Spout, knockout are column with spray lid, are coaxially disposed from front to back in tubular shell；
The spray is covered with secondary road inclined hole A, main road straight hole A, main road fluid collection chamber；There is secondary road fluid collection chamber, secondary road on knockout
Inclined hole B, secondary road straight hole, secondary road tangential slot, spin chamber's leading portion and main road straight hole B；After there is main road straight hole C, spin chamber on spout
Section, main road tangential slot and spray orifice；
Above-mentioned spin chamber's leading portion is connected with spin chamber's back segment, forms spin chamber；Main road straight hole A is connected with main road fluid collection chamber；Main road
Fluid collection chamber is connected with main road straight hole B；Main road straight hole B is connected with main road straight hole C, and main road straight hole C passes through main road tangential slot and eddy flow
Room back segment connection.Main road oxidant successively through main road straight hole A- main roads fluid collection chamber-main road straight hole B- main road straight holes C after, via master
Road tangential slot tangentially sprays into spin chamber；
Above-mentioned secondary road inclined hole A is connected with secondary road fluid collection chamber；Secondary road fluid collection chamber is connected by pair road inclined hole B with secondary road straight hole；Secondary road
Straight hole passes through secondary road tangential slot and is connected with spin chamber's leading portion；Secondary road oxidant is successively through secondary road inclined hole A- pairs road fluid collection chamber-pair road
After the straight hole of inclined hole B- pairs road, spin chamber is tangentially sprayed into via secondary road tangential slot；
Above-mentioned spin chamber connects with spray orifice, and oxidant forms eddy flow in spin chamber, accelerates to be sprayed by spray orifice in spray orifice.
2. as claimed in claim 1 a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, it is characterised in that：
Main road fluid collection chamber is the annular chamber coaxial with spray lid.
3. as claimed in claim 1 a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, it is characterised in that：
The secondary road straight hole is the blind hole being axially opened in along knockout on knockout front end face, circumferential uniform；Secondary road inclined hole B is circumferential
Cloth three.
4. as claimed in claim 1 a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, it is characterised in that：
Main road straight hole C is axially opened in the blind hole on spout trailing flank along spout, circumferential uniform.
5. as claimed in claim 1 a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, it is characterised in that：
Main road tangential slot is opened on spout trailing flank, is bar-shaped trough, circumferential uniform, tangent with three main road straight hole C respectively, while
It is tangent with spin chamber's back segment.
6. as claimed in claim 1 a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, it is characterised in that：
Secondary road tangential slot is opened on knockout leading flank, is bar-shaped trough, circumferential uniform, tangent with three Ge Fu roads straight holes respectively, while
Jun Yufu roads fluid collection chamber is tangent.
7. a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure as described in claim 5 or 6, its feature exists
In：Main road tangential slot and secondary road tangential slot size all same, and three main road tangential slots and three Tiao Fu roads tangential slots arrival end
Angle between the different two sections alternate of ejector filler axial location, main road tangential slot and secondary road tangential slot differs 60
Degree.
8. as claimed in claim 1 a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, it is characterised in that：
The secondary road tangential slot is identical with main road tangential slot size, and section is rectangle, and square-section the ratio of width to height is taken between 1~2.
9. as claimed in claim 1 a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure, it is characterised in that：
Sealing ring sealing is set between spout and knockout；Inside loop and outside loop sealing ring is set between knockout and spray lid；Wherein inner ring seal circle
For isolating main road oxidant with secondary road oxidant.
10. a kind of change propulsive solid-liquid rocket two-way centrifugal injector structure as claimed in claim 1, its feature exists
In：When being installed between knockout and spout, coordinate real by the positioning convex and the location hole of design on spout that are designed on knockout
It is existing circumferentially positioned.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710224744.5A CN106837609B (en) | 2017-04-07 | 2017-04-07 | A kind of change propulsive solid-liquid rocket two-way centrifugal injector structure |
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| CN201710224744.5A CN106837609B (en) | 2017-04-07 | 2017-04-07 | A kind of change propulsive solid-liquid rocket two-way centrifugal injector structure |
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| CN106837609B CN106837609B (en) | 2018-03-09 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461277A (en) * | 2017-10-11 | 2017-12-12 | 北京航空航天大学 | A kind of ground experiment modularization hybrid rocket engine |
| CN107838572A (en) * | 2017-11-01 | 2018-03-27 | 湖北三江航天红阳机电有限公司 | A kind of welding method of pintle formula ejector filler |
| CN109162832A (en) * | 2018-10-09 | 2019-01-08 | 北京航空航天大学 | Engine head structure, hybrid rocket engine and rocket |
| CN111766058A (en) * | 2020-07-31 | 2020-10-13 | 西安航天动力研究所 | Multi-interval double-gas-liquid coaxial centrifugal nozzle test device |
| CN111895449A (en) * | 2020-04-30 | 2020-11-06 | 南京理工大学 | Centrifugal bubble atomizing injector for high viscosity liquids |
| CN114439647A (en) * | 2022-01-05 | 2022-05-06 | 沈阳航天新光集团有限公司 | Injector of combined power rocket engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107461277A (en) * | 2017-10-11 | 2017-12-12 | 北京航空航天大学 | A kind of ground experiment modularization hybrid rocket engine |
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| CN111766058A (en) * | 2020-07-31 | 2020-10-13 | 西安航天动力研究所 | Multi-interval double-gas-liquid coaxial centrifugal nozzle test device |
| CN111766058B (en) * | 2020-07-31 | 2021-07-20 | 西安航天动力研究所 | Multi-interval double-gas-liquid coaxial centrifugal nozzle test device |
| CN114439647A (en) * | 2022-01-05 | 2022-05-06 | 沈阳航天新光集团有限公司 | Injector of combined power rocket engine |
| CN114439647B (en) * | 2022-01-05 | 2024-05-10 | 沈阳航天新光集团有限公司 | Combined power rocket engine injector |
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| Publication number | Publication date |
|---|---|
| CN106837609B (en) | 2018-03-09 |
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