CN205277629U - A tapering formula swirl ware structure for double elements ejector filler - Google Patents
A tapering formula swirl ware structure for double elements ejector filler Download PDFInfo
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- CN205277629U CN205277629U CN201520857323.2U CN201520857323U CN205277629U CN 205277629 U CN205277629 U CN 205277629U CN 201520857323 U CN201520857323 U CN 201520857323U CN 205277629 U CN205277629 U CN 205277629U
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Abstract
The utility model discloses a tapering formula swirl ware structure for double elements ejector filler, including interior nozzle, interior swirl ware, outer swirl ware and outer nozzle, wherein interior nozzle has the hollow circular cylinder of step for the outer wall, spout in conical in the lower extreme has, and interior swirl ware axial is opened has the centre bore, and the arc internal rotation chute that has the equipartition is driven in horizontal hole in the middle part is radially opened and is had on the interior swirl ware outer wall, outer nozzle is the hollow circular cylinder, the outer spout of toper in the lower extreme has, the upper end is equipped with an outer horizontal hole as the runner entry of from outside medium, outside on the swirl ware outer wall equipartition have arc outward turning chute, interior nozzle is the tapering form that the upper end is thick, the lower extreme is thin with interior swirl ware, outer nozzle and outer swirl ware complex hole section, and the excircle of interior swirl ware and outer swirl ware is the tapering form that the upper end is thick, the lower extreme is thin. The utility model discloses simple structure, the manufacturability is good, including only needing, outer swirl ware and interior, outer nozzle process the back, carries out the tapering to hole and outer wall and processes and to realize.
Description
Technical field
The utility model relates to a kind of taper type wortex device structure for double elements inspirator, it is possible to the centrifugal inspirator for aerospace field double elements liquid rocket engine designs.
Background technology
Inspirator is the core component of double elements thruster, and the flow characteristic of inspirator and atomization characteristics determine the performance of thruster. The flow theory of inspirator is determine by the eddy flow groove area of wortex device, after passing through eddy flow groove generation centrifugation with the propelling agent of certain pressure, make propelling agent from spout atomization ejection by centrifugal, inject combustion chamber and high efficient mixed, produce efficient and stable burning, finally form thrust.
The part of inspirator is in process of production, it is necessary to try to match by water, to reach the index of flow and atomization. For the ease of apolegamy, there is gap in what be difficult to avoid between wortex device and outer wall, if not having gap, then wortex device is difficult to installation and removal, and therefore the tolerance clearance of general inspirator wortex device all needs to remain on about 0.02mm.
For the double elements appearance control thruster of 10N thrust magnitude, the non-design runner area that 0.02mm tolerance clearance is formed is suitable with eddy flow groove runner area, segment fluid flow is caused to reserve from gap instead of flow out from eddy flow groove, it is unfavorable for the control of flow on the one hand, owing to fluid loses, eddy flow groove is centrifugal assists on the other hand, causes atomizing effect also to be affected. Simultaneously, excessive clearance, gap change that is asymmetric and gap all can cause change and the instability of flow and atomization, even overproof, the performance even having influence on product even brings the problem of unstable combustion, non-uniform combustion, causes thruster igniting extremely even to be lost efficacy.
Practical novel content
Technology of the present utility model is dealt with problems and is: for overcoming the deficiencies in the prior art, propose a kind of taper type wortex device structure for double elements inspirator, to eliminate the impact that tolerance clearance is brought, give full play to the centrifugal flow guiding effect of wortex device eddy flow groove, and then improve atomization and product consistence, the stability of product.
Technical solution of the present utility model is:
For a taper type wortex device structure for double elements inspirator, comprise inner nozzle, interior wortex device, outer wortex device and outer nozzle;
Wherein inner nozzle is the hollow circular cylinder of outer wall with step, lower end band has the interior spout spraying interior road medium of inner conical, the interior wortex device being placed in the hollow circular cylinder of inner nozzle is right cylinder, it axially has centre hole, middle part radial direction has interior transverse holes, centre hole and interior transverse holes intersect vertically and form the runner entrance of interior road medium, and interior wortex device outer wall has uniform arc inward turning chute;
Outer nozzle is hollow circular cylinder, lower end band has the outer spout spraying from outside medium of inner conical, upper end is provided with the runner entrance of an outer transverse holes as from outside medium, outer nozzle and the laminating of inner nozzle positioning step, in the step lower cylindrical section outer exterior wall that outer wortex device is arranged on inner nozzle and outer nozzle hollow circular cylinder, wortex device outer wall is evenly equipped with arc outward turning chute outside;
The interior hole section that inner nozzle coordinates with outer wortex device with interior wortex device, outer nozzle is the tapering form that upper end end thick, lower is thin, and the cylindrical of interior wortex device and outer wortex device is the tapering form that upper end end thick, lower is thin.
The slope of the tapering of the slope of interior hole section tapering that described inner nozzle coordinates with outer wortex device with interior wortex device, outer nozzle and the cylindrical of interior wortex device and outer wortex device is 1:50.
The outer conical surface between inner nozzle and interior wortex device, outer nozzle and outer wortex device and inner conical surface fitted seal.
Inner nozzle, interior wortex device, inward turning chute, outer wortex device, outward turning chute, outer nozzle adopt titanium alloy material.
Interior spout and outer spout wall thickness are not less than 0.5mm.
Inner nozzle, interior wortex device, outer nozzle are for being tightly connected.
Inward turning chute and outward turning chute quantity are 2��3.
The two spout of built-up type of outer nozzle and inner nozzle composition concentric ring-shaped.
The utility model useful effect compared with prior art is:
(1) the utility model utilizes between inner nozzle and interior wortex device, outer nozzle and outer wortex device hole axle from the effect of centering, selfsealings, tolerance clearance is shut completely, owing to gap runner disappears, medium is forced to enter eddy flow groove runner, the flow of medium is controlled by eddy flow groove completely on the one hand, stability of flow is controlled, and on the other hand by the abundant centrifugation of eddy flow groove, from nozzle, the medium atomization effect of ejection is better.
(2) the utility model inner nozzle and interior wortex device, outer nozzle and outer wortex device adopt the structure that bottom is little, oral area is big, can ensure that wortex device can be installed and removed smoothly in error process, the wortex device of taper fit possesses self-lock ability simultaneously, it is possible to prevents welding the distortion produced and is impacted by inner flow passage.
(3) the utility model wortex device structure is simple, good manufacturability, it is achieved convenient, it is only necessary to after inside and outside wortex device and inner and outer nozzles are processed, internal hole and outer wall carry out taper WEDM and can realize.
Accompanying drawing explanation
Fig. 1 is the utility model one-piece construction schematic diagram;
Fig. 2 is runner schematic diagram in road in the utility model;
Fig. 3 is the from outside runner schematic diagram of the utility model;
Fig. 4 is the utility model inward turning chute axis of no-feathering side schematic diagram;
Fig. 5 is the utility model inward eddy slot cross-section schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described in detail.
As shown in Figure 1, the utility model provides a kind of taper type wortex device structure for double elements inspirator, comprises inner nozzle 1, interior wortex device 2, inward turning chute 3, outer wortex device 4, outward turning chute 5, outer nozzle 6.
Inner nozzle 1 is the hollow circular cylinder of outer wall with step, lower end is spout 7 in inner conical, interior wortex device 2 inserts in the centre hole of inner nozzle 1, interior wortex device 2 outer wall there is inward turning chute 3, inward turning chute 3 is arc spiral slot, the quantity of spiral slot is 2��3, is distributed on the outer wall of interior wortex device 2.
Outer wortex device 4 is arranged on the step lower cylindrical section outer exterior wall of inner nozzle 1, having outward turning chute 5 on wortex device 4 outer wall outside, outward turning chute 5 is arc spiral slot, and the quantity of spiral slot is 2��3, being distributed on the outer wall of outer wortex device 4, outer wortex device 4 inserts in outer nozzle 6 centre hole.
Double elements inspirator inside comprises incendiary material, oxygenant two kinds of propelling agent runners, respectively from Nei Lu and from outside two runners circulation, as shown in Figure 2, inner nozzle 1, interior wortex device 2, inward turning chute 3 constitute the interior road runner of incendiary material, flow into from interior wortex device centre hole 9 with the incendiary material of certain pressure, as shown in Figure 4, flow through in the inward turning chute 3 that interior transverse holes 10 enters interior wortex device 2, after rotating centrifugal effect, in the bottom of inner nozzle 1, spout 7 sprays, produce centrifugal atomizing effect, enter and in combustion chamber, carry out blending, evaporation, burning.
As shown in Figure 3, outer nozzle 6, outer wortex device 4, outward turning chute 5 constitute the from outside runner of double elements oxygenant, flow into from the outer transverse holes 11 of outer nozzle 6 with the oxygenant of certain pressure, enter in the outward turning chute 5 of outer wortex device 4, after rotating centrifugal effect, from the bottom of outer nozzle 6, spout 8 sprays, and produces centrifugal atomizing effect, enters and carry out blending, evaporation, burning in combustion chamber.
As shown in Figure 5, the inward turning chute 3 of taper type wortex device, outward turning chute 5 are adopted to the grooved of arc, uninterrupted is determined by groove depth and arc radius, adopt the impact that deep-slotted chip breaker can effectively reduce interior wortex device 2, the change of outer wortex device 4 tapering outer wall brings for groove depth, maintain consistence and the stability of flow.
The interior wortex device 2 of tapering form, the outside wall surface of outer wortex device 4 is designed to the outer cone form of 1:50 gradient, inner nozzle 1 centre hole simultaneously coordinated with it and outer nozzle 6 center wall surface of the hole are designed to the inner cone form of 1:50 gradient, outer cone tapering is by minus tolerance processing, inner cone tapering is by the processing of positive tolerance, the interior wortex device 2 of outer cone form during installation, outer wortex device 4 directly inserts inner nozzle 1 with the centre hole of outer nozzle 6, utilize cone match from the characteristic to neutralization selfsealings, gap between wortex device and nozzle inner walls is eliminated completely, force in the deep-slotted chip breaker that incendiary material and oxygenant can only enter inward turning chute 3 and outward turning chute 5, make incendiary material and oxygenant completely by eddy flow groove water conservancy diversion, flow is uniquely determined by the area of deep-slotted chip breaker completely, realize centrifugal cyclone fully simultaneously, ensure that the uniform and stable of the controlled stable of flow and atomization.
Inner nozzle 1, interior wortex device 2, inward turning chute 3, outer wortex device 4, outward turning chute 5, outer nozzle 6 should use high temperature resistant, intensity height and resistance good material, preferred high temperature resistant titanium alloy material, such as Ti53311S, Ti2AINb, especially being prevented the thin-walled of spout from deforming, therefore the wall thickness of inside and outside spout should not be less than 0.5mm.
With there being two electron beam weld seams, inner nozzle 1, interior wortex device 2, outer nozzle 6 are welded together, form spray assembly, welded construction is circumference soldering, welding distortion direction is consistent with the loading direction of tapering wortex device, interior wortex device 2, the outer wortex device 4 of taper fit is made to kill be adjacent to inner nozzle 1, outer nozzle 6 wall face further after welding, realize self-locking, prevent from welding the impact bringing runner to change, the stability of guaranteed flow and atomization.
The content that the utility model is not described in detail belongs to the known technology of professional and technical personnel in the field.
Claims (8)
1. the taper type wortex device structure for double elements inspirator, it is characterised in that: comprise inner nozzle (1), interior wortex device (2), outer wortex device (4) and outer nozzle (6);
Wherein inner nozzle (1) is for outer wall is with the hollow circular cylinder of step, lower end band has the interior spout (7) spraying interior road medium of inner conical, the interior wortex device (2) of the hollow circular cylinder being placed in inner nozzle (1) is right cylinder, it axially has centre hole (9), middle part radial direction has interior transverse holes (10), centre hole (9) and interior transverse holes (10) intersect vertically and form the runner entrance of interior road medium, and interior wortex device (2) outer wall has uniform arc inward turning chute (3);
Outer nozzle (6) is hollow circular cylinder, lower end band has the outer spout (8) spraying from outside medium of inner conical, upper end is provided with the runner entrance of an outer transverse holes (11) as from outside medium, outer nozzle (6) and the laminating of inner nozzle (1) positioning step, in the step lower cylindrical section outer exterior wall that outer wortex device (4) is arranged on inner nozzle (1) and outer nozzle (6) hollow circular cylinder, outside wortex device (4) outer wall is evenly equipped with arc outward turning chute (5);
The interior hole section that inner nozzle (1) coordinates with outer wortex device (4) with interior wortex device (2), outer nozzle (6) is the tapering form that upper end end thick, lower is thin, and the cylindrical of interior wortex device (2) and outer wortex device (4) is the tapering form that upper end end thick, lower is thin.
2. a kind of taper type wortex device structure for double elements inspirator according to claim 1, it is characterised in that: the slope of the tapering of the slope of interior hole section tapering that inner nozzle (1) coordinates with outer wortex device (4) with interior wortex device (2), outer nozzle (6) and the cylindrical of interior wortex device (2) and outer wortex device (4) is 1:50.
3. a kind of taper type wortex device structure for double elements inspirator according to claim 1, is characterised in that: the outer conical surface between inner nozzle (1) and interior wortex device (2), outer nozzle (6) and outer wortex device (4) and inner conical surface fitted seal.
4. a kind of taper type wortex device structure for double elements inspirator according to claim 1, it is characterised in that: inner nozzle (1), interior wortex device (2), inward turning chute (3), outer wortex device (4), outward turning chute (5), outer nozzle (6) adopt titanium alloy material.
5. a kind of taper type wortex device structure for double elements inspirator according to claim 1, it is characterised in that: interior spout (7) and outer spout (8) wall thickness are not less than 0.5mm.
6. a kind of taper type wortex device structure for double elements inspirator according to claim 1, it is characterised in that: inner nozzle (1), interior wortex device (2), outer nozzle (6) are for being tightly connected.
7. a kind of taper type wortex device structure for double elements inspirator according to claim 1, it is characterised in that: inward turning chute (3) and outward turning chute (5) quantity are 2��3.
8. a kind of taper type wortex device structure for double elements inspirator according to claim 1, it is characterised in that: outer nozzle (6) and inner nozzle (1) form the two spout of built-up type of concentric ring-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520857323.2U CN205277629U (en) | 2015-10-30 | 2015-10-30 | A tapering formula swirl ware structure for double elements ejector filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520857323.2U CN205277629U (en) | 2015-10-30 | 2015-10-30 | A tapering formula swirl ware structure for double elements ejector filler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762225A (en) * | 2016-11-22 | 2017-05-31 | 上海空间推进研究所 | A kind of rocket engine anti-backfire nozzle |
| CN108252824A (en) * | 2017-12-20 | 2018-07-06 | 北京控制工程研究所 | A kind of seven nozzles applied to high-performance two-components Adhesive centrifuge 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 |
| WO2019127936A1 (en) * | 2017-12-25 | 2019-07-04 | 深圳光启空间技术有限公司 | Nozzle structure, jet device and engine |
-
2015
- 2015-10-30 CN CN201520857323.2U patent/CN205277629U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762225A (en) * | 2016-11-22 | 2017-05-31 | 上海空间推进研究所 | A kind of rocket engine anti-backfire nozzle |
| CN106762225B (en) * | 2016-11-22 | 2018-08-03 | 上海空间推进研究所 | A kind of rocket engine anti-backfire nozzle |
| CN108252824A (en) * | 2017-12-20 | 2018-07-06 | 北京控制工程研究所 | A kind of seven nozzles applied to high-performance two-components Adhesive centrifuge ejector filler |
| WO2019127936A1 (en) * | 2017-12-25 | 2019-07-04 | 深圳光启空间技术有限公司 | Nozzle structure, jet device and engine |
| CN109162832A (en) * | 2018-10-09 | 2019-01-08 | 北京航空航天大学 | Engine head structure, hybrid rocket engine and rocket |
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