CN204226049U - A kind of large discharge list import annular liquid collecting cavity current equalizer - Google Patents
A kind of large discharge list import annular liquid collecting cavity current equalizer Download PDFInfo
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- CN204226049U CN204226049U CN201420403440.7U CN201420403440U CN204226049U CN 204226049 U CN204226049 U CN 204226049U CN 201420403440 U CN201420403440 U CN 201420403440U CN 204226049 U CN204226049 U CN 204226049U
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Abstract
This technology belongs to liquid collecting cavity current equalizer technical field, is specifically related to a kind of large discharge list import annular liquid collecting cavity current equalizer.It comprises stream import, once large current-sharing chamber, radial all discharge orifice, the little current-sharing chamber of secondary, flowing path outlet, liquid collecting cavity matrix.Stream import is positioned at directly over liquid collecting cavity matrix, it is once large current-sharing chamber below it, in once large current-sharing chamber, and relative with stream import immediately below for import homogenizing plate, import homogenizing plate has several through hole, local rectifying effect can be played, make the pressure distribution of annularly liquid collecting cavity circumference substantially be tending towards even, local flow resistance can be controlled at reduced levels simultaneously.Radial all discharge orifices are positioned at once downstream, large current-sharing chamber, and the total equal discharge orifice of multiple radial direction circumferentially arranges in the bottom in large current-sharing chamber, and is connected with the little current-sharing chamber of secondary, while playing further current balance function controls local flow resistance at reduced levels.
Description
Technical field
The utility model belongs to liquid collecting cavity field, is specifically related to a kind of large discharge list import annular liquid collecting cavity current equalizer.
Background technique
Single import annular liquid collecting cavity structure is extensively adopted in liquid propellant rocket engine, the imperfect flow of liquid collecting cavity inside will cause its outlet pressure to distort, make each stream assignment of traffic of downstream uneven, finally can affect overall performance, therefore the current equalizing structure of appropriate design annular liquid collecting cavity is extremely important.
The current equalizer that current annular liquid collecting cavity adopts is arrange homogenizing plate in stream import mostly, eliminates local flow field distortion.Such current equalizer is less due to entrance circulation area, limits by flow resistance, and it is less that homogenizing plate through flow hole can not design, and makes current-sharing limited efficiency.
Due to the rocket motor severity of annular liquid collecting cavity high-speed large-flow Environmental Conditions, and downstream flow distributes the requirement of the low flow resistance of high uniformity, existing current equalizer cannot meet usage requirement, so overcoming above deficiency is design the key of novel current equalizer.
Summary of the invention
The purpose of this utility model is: provide a kind of current equalizer of the low flow resistance of high uniformity being applicable to high-speed large-flow annular liquid collecting cavity, to adapt to the Environmental Conditions of more large discharge more high flow rate, significantly improves the uniformity that downstream flow is distributed.
The technical solution of the utility model is as follows: a kind of large discharge list import annular liquid collecting cavity current equalizer, comprise stream import, once large current-sharing chamber, radial all discharge orifice, the little current-sharing chamber of secondary, flowing path outlet, described once large current-sharing chamber is spherical cavity structure, it is stream import above it, once large current-sharing chamber is connected with the little current-sharing chamber of secondary by radial all discharge orifices, and described flowing path outlet is positioned at the below in the little current-sharing chamber of secondary.
The equal discharge orifice of described radial direction has several, circumferentially arranges in the bottom in large current-sharing chamber, and is connected with the little current-sharing chamber of secondary.
Described once large current-sharing lumenal levels places import homogenizing plate, import homogenizing plate has through hole, plays local rectifying effect, make the pressure distribution of annularly liquid collecting cavity circumference substantially be tending towards even.
Described through hole has several.
Remarkable result of the present utility model is: devise a kind of current equalizer of the low flow resistance of high uniformity being applicable to high-speed large-flow annular liquid collecting cavity, adopts the composite structure in the equal little current-sharing chamber of discharge orifice+secondary of large current-sharing chamber+radial direction of import homogenizing plate+once.By arranging homogenizing plate in stream import, the effect eliminating entrance flow distortion can be played.First all pressure effects can be played by once large current-sharing chamber, make the pressure distribution of annularly liquid collecting cavity circumference substantially be tending towards even.The effect of further current-sharing can be played by the secondary little current-sharing chamber in the equal discharge orifice of radial direction and downstream.This current equalizer substantially improves the working environment of annular liquid collecting cavity, can adapt to the Environmental Conditions of more large discharge more high flow rate, significantly improve the uniformity that downstream flow is distributed.
Accompanying drawing explanation
Fig. 1 is a kind of large discharge list import annular liquid collecting cavity current equalizer plane structure schematic diagram described in the utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
In figure: 1 stream import, 2 is large current-sharing chamber, 3 import homogenizing plates, 4 homogenizing plate through holes, 5 radial all discharge orifices, 6 two little current-sharing chambeies, 7 flowing path outlets once;
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Fig. 1 Fig. 2, the current equalizer for the low flow resistance of high uniformity of high-speed large-flow annular liquid collecting cavity comprises stream import 1, once large current-sharing chamber 2, radial all discharge orifice 5, the little current-sharing chamber 6 of secondary, flowing path outlet 7.
Once large current-sharing chamber 2 is spherical cavity structure, the homogenizing plate of horizontal positioned import within it 3, import homogenizing plate 3 has several through holes 4, local rectifying effect can be played, make the pressure distribution of annularly liquid collecting cavity circumference substantially be tending towards even, local flow resistance can be controlled at reduced levels simultaneously.Once the top in large current-sharing chamber 2 is stream import 1.
Radial all discharge orifices 5 are positioned at once downstream, large current-sharing chamber 2, the total equal discharge orifice of multiple radial direction 5 circumferentially arranges in the bottom in large current-sharing chamber 2, once large current-sharing chamber 2 is connected with the little current-sharing chamber 6 of secondary by radial all discharge orifices 5, while playing further current balance function controls local flow resistance at reduced levels.The below in the little current-sharing chamber 6 of secondary is flowing path outlet 7.
Claims (4)
1. a large discharge list import annular liquid collecting cavity current equalizer, it is characterized in that: comprise stream import (1), once large current-sharing chamber (2), radial all discharge orifice (5), the little current-sharing chamber (6) of secondary, flowing path outlet (7), described once large current-sharing chamber (2) is spherical cavity structure, it is stream import (1) above it, once large current-sharing chamber (2) is connected with the little current-sharing chamber (6) of secondary by radial all discharge orifices (5), and described flowing path outlet (7) is positioned at the below of the little current-sharing chamber (6) of secondary.
2. according to a kind of large discharge list import annular liquid collecting cavity current equalizer according to claim 1, it is characterized in that: the equal discharge orifice of described radial direction (5) has several, circumferentially arrange in the bottom of large current-sharing chamber (2), and be connected with the little current-sharing chamber (6) of secondary.
3. according to a kind of large discharge list import annular liquid collecting cavity current equalizer according to claim 1, it is characterized in that: described once large current-sharing chamber (2) interior horizontal positioned import homogenizing plate (3), import homogenizing plate (3) has through hole (4), play local rectifying effect, make the pressure distribution of annularly liquid collecting cavity circumference substantially be tending towards even.
4., according to a kind of large discharge list import annular liquid collecting cavity current equalizer according to claim 3, it is characterized in that: described through hole (4) has several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403440.7U CN204226049U (en) | 2014-07-21 | 2014-07-21 | A kind of large discharge list import annular liquid collecting cavity current equalizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403440.7U CN204226049U (en) | 2014-07-21 | 2014-07-21 | A kind of large discharge list import annular liquid collecting cavity current equalizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226049U true CN204226049U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420403440.7U Active CN204226049U (en) | 2014-07-21 | 2014-07-21 | A kind of large discharge list import annular liquid collecting cavity current equalizer |
Country Status (1)
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| CN (1) | CN204226049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317586A (en) * | 2014-07-21 | 2016-02-10 | 北京航天动力研究所 | High-flow single-inlet annular liquid collecting chamber flow-equilibrating device |
-
2014
- 2014-07-21 CN CN201420403440.7U patent/CN204226049U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317586A (en) * | 2014-07-21 | 2016-02-10 | 北京航天动力研究所 | High-flow single-inlet annular liquid collecting chamber flow-equilibrating device |
| CN105317586B (en) * | 2014-07-21 | 2017-11-28 | 北京航天动力研究所 | A kind of big flow list import annular liquid collecting cavity current equalizer |
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