CN109737455A - A kind of heater combustion chamber cylinder of anti-unstability - Google Patents
A kind of heater combustion chamber cylinder of anti-unstability Download PDFInfo
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- CN109737455A CN109737455A CN201811588539.8A CN201811588539A CN109737455A CN 109737455 A CN109737455 A CN 109737455A CN 201811588539 A CN201811588539 A CN 201811588539A CN 109737455 A CN109737455 A CN 109737455A
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- cooling
- cooling bath
- combustion chamber
- reinforcing rib
- unstability
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Abstract
The present invention provides a kind of heater combustion chamber cylinder of anti-unstability, which uses the Water Cooling Technology for increasing cooling duct reinforcement height and installing flow-stopping plate, it is ensured that is capable of working long hours for safety and stability in combustion chamber.Combustion chamber cylinder includes inner cylinder and outer barrel: it is characterized in that, circumferentially distributed on the outer circumference surface of the inner cylinder have two or more axial strip grooves as cooling bath, the wall surface of the cooling bath two sides is as cooling channels reinforcing rib；Wherein the height of the cooling channels reinforcing rib of cooling bath axial ends position is greater than the height of interlude cooling channels reinforcing rib；And it is embedded in baffle item in each cooling slot surfaces of interlude, the intake tunnel and exhalant canal being connected to the cooling bath are provided on the flange at the both ends of the outer barrel.
Description
Technical field
The present invention relates to a kind of chamber structures, and in particular to a kind of combustion chamber cylinder of anti-unstability, with belonging to engine
Interview experiment device technical field.
Background technique
For the heater of hypersonic large scale free jet test platform, molding surface size is big in structure, operating temperature, pressure
Power is high, needs to work in very wide range of Mach numbers, and heater needs to simulate the inlet flow conditions in corresponding range, in high horse
Incoming flow enthalpy is very high under conspicuous said conditions, proposes very high requirement to the thermal protection of heater combustion chamber cylinder；On the other hand, by
It is higher in the flow of general requirement heater, for heater size relatively before heater double, increase accordingly ruler
The thermal protection of very little test test specimen is more severe.
The heater combustion chamber maximum gauge of previous equipment only has 460mm, and the large scale that maximum gauge is 700mm is added
Hot device combustion chamber, the unstability and heat transfer intensity of cooling structure are the emphasis of Combustion chamber design.Previous combustion chamber cylinder water cooling
Mode is all made of straight trough or spiral shape sink structure, and straight trough cooling effect is best, but intensity is poor compared with spiral shape；Spiral shape sink
Structural strength is good, but cooling effect is poorer than straight trough.But the water-cooling pattern of which kind of form no matter is used, heat exchange and unstability are all very
Severe paradox.
Therefore, be the needs for meeting experimental study, need to design it is a kind of can under the conditions of Gao Han reliably working heater
Combustion chamber cylinder, and meet the needs of working time.
Summary of the invention
In view of this, the present invention provides a kind of heater combustion chamber cylinder of anti-unstability, good cooling results, structural strength
Height sufficiently solves the contradictory problems of unstability and heat exchange.
The heater combustion chamber cylinder of the anti-unstability, inner cylinder and outer barrel including coaxial package, the inner cylinder
It is circumferentially distributed on the outer circumference surface of body to have two or more axial strip grooves as cooling bath, at the both ends of the outer barrel
The intake tunnel and exhalant canal being connected to the cooling bath are provided on flange；
The wall surface of the cooling bath two sides is as cooling channels reinforcing rib, wherein cooling bath axial ends position is cold
But the height of conduit reinforcing rib is greater than the height of interlude cooling channels reinforcing rib；And it is embedding on each cooling bath interlude road surface
Fill baffle item, the baffle item by corresponding cooling bath interlude upper surface close, the both ends of the baffle item respectively with both ends
Cooling channels reinforcing rib contradict, realize axial limiting.
The intake tunnel, which slopes inwardly, to be arranged, and is forming turning with the connectivity part of the cooling bath.
The utility model has the advantages that
For the thermal protection problem of high enthalpy heater combustion chamber cylinder, which uses increase cooling duct and adds
Strengthening tendons height and the Water Cooling Technology for installing baffle item, it is ensured that be capable of working long hours for safety and stability in combustion chamber.Such structure
Easy processing, good cooling results, structural strength are high, sufficiently solve the contradictory problems of unstability and heat exchange.
Detailed description of the invention
Fig. 1 is combustion chamber tube structure schematic diagram；
Fig. 2 is the main schematic diagram of inner cylinder installed after baffle item；
Fig. 3 is the inner cylinder cross-sectional view installed after baffle item；
Fig. 4 is flange Inlet and outlet water structural profile illustration before and after combustion chamber.
Wherein: 1- inner cylinder, 2- outer barrel, 3- flange, 6- baffle item, 7- intake tunnel
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present embodiment provides a kind of heater combustion chamber cylinders suitable for the anti-unstability easy processing of large scale, by burning
Room cylinder cooling structure improves design, can meet the needs of working time, and greatly strengthens the stabilization of structure
Property.
As shown in Figure 1-Figure 3, which includes the inner cylinder 1 and outer barrel 2 of coaxial package, inner cylinder 1 it is outer
It is uniformly distributed circumferentially axial strip groove on periphery as cooling bath, cooling water is led in cooling bath, cooling bath two sides
Wall surface is as cooling channels reinforcing rib.Wherein the height of the cooling channels reinforcing rib of cooling bath axial ends position is greater than interlude
The height of cooling channels reinforcing rib；And it is embedded in baffle item 6 on each cooling bath interlude road surface, baffle item 6 will be corresponding cold
But slot interlude upper surface is closed, and the both ends of baffle item 6 are contradicted with the cooling channels reinforcing rib for being located at both ends respectively, is realized axial
Limit.Can not only unstability be resisted but also can guarantee that the circulation area of cooling duct meets flow rates demand by increasing baffle item 6；And guarantee knot
Easy to process under conditions of structure intensity can satisfy requirement, the combustion chamber cylinder of this kind of structure type greatly strengthens cylinder
The stability of body structure.
As shown in figure 4, being provided with the intake tunnel 7 being connected to cooling bath on the flange 3 at the both ends of outer barrel 2, intake
Channel 7, which slopes inwardly, to be arranged, and is preventing from being formed thus, it is possible to increase corner's flow velocity forming turning with the connectivity part of cooling bath
Whirlpool.
In current debugging test, cooling need are effectively met using the heater combustion chamber cylinder of the structure type
It wants, ensure that going on smoothly for High Mach number test.The design method is suitable for high enthalpy heater combustion chamber cylinder, can be it
There is provided effective thermal protection, it is ensured that the progress of test supports the research of scramjet engine.
To sum up, the above is merely preferred embodiments of the present invention, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (2)
1. a kind of heater combustion chamber cylinder of anti-unstability, inner cylinder (1) and outer barrel (2) including coaxial package: its feature
It is, it is circumferentially distributed on the outer circumference surface of the inner cylinder (1) to have two or more axial strip grooves as cooling bath (4),
The intake tunnel (7) being connected to the cooling bath (4) and water outlet are provided on the flange (3) at the both ends of the outer barrel (2)
Channel；
The wall surface of cooling bath (4) two sides is as cooling channels reinforcing rib, wherein the cooling bath (4) axial ends position
The height of cooling channels reinforcing rib is greater than the height of interlude cooling channels reinforcing rib；And in each cooling bath (4) interlude road
Surface is embedded in baffle item (6), and the baffle item (6) closes corresponding cooling bath interlude upper surface, the baffle item (6)
Both ends are contradicted with the cooling channels reinforcing rib at both ends respectively, realize axial limiting.
2. the heater combustion chamber cylinder of anti-unstability as described in claim 1, which is characterized in that the intake tunnel (7) to
Tilted setting is forming turning with the connectivity part of the cooling bath (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588539.8A CN109737455B (en) | 2018-12-25 | 2018-12-25 | Unstability-resistant heater combustion chamber barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588539.8A CN109737455B (en) | 2018-12-25 | 2018-12-25 | Unstability-resistant heater combustion chamber barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109737455A true CN109737455A (en) | 2019-05-10 |
| CN109737455B CN109737455B (en) | 2021-01-19 |
Family
ID=66359758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811588539.8A Active CN109737455B (en) | 2018-12-25 | 2018-12-25 | Unstability-resistant heater combustion chamber barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109737455B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123565A (en) * | 2023-02-09 | 2023-05-16 | 中国空气动力研究与发展中心空天技术研究所 | Water-cooling ignition section of combustion type air heater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201312915Y (en) * | 2008-12-09 | 2009-09-23 | 张家港市神农药机有限公司 | Double-layer sterilization cabinet |
| CN204251081U (en) * | 2014-11-26 | 2015-04-08 | 台州市双辉机械设备有限公司 | A kind of cutting machine wire winding tube |
| CN104949153A (en) * | 2014-03-31 | 2015-09-30 | 北京航天动力研究所 | High pressure combustion chamber cooling jacket inlet and outlet structure and machining method thereof |
| CN105276620A (en) * | 2015-06-26 | 2016-01-27 | 中航空天发动机研究院有限公司 | Composite cooling structure for wall of combustion chamber flame tube of aero-engine |
| CN205065799U (en) * | 2015-08-03 | 2016-03-02 | 华中科技大学 | A flame holder for combustion chamber and combustion chamber thereof |
| CN108626751A (en) * | 2017-03-15 | 2018-10-09 | 中国航发商用航空发动机有限责任公司 | Burner inner liner |
-
2018
- 2018-12-25 CN CN201811588539.8A patent/CN109737455B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201312915Y (en) * | 2008-12-09 | 2009-09-23 | 张家港市神农药机有限公司 | Double-layer sterilization cabinet |
| CN104949153A (en) * | 2014-03-31 | 2015-09-30 | 北京航天动力研究所 | High pressure combustion chamber cooling jacket inlet and outlet structure and machining method thereof |
| CN204251081U (en) * | 2014-11-26 | 2015-04-08 | 台州市双辉机械设备有限公司 | A kind of cutting machine wire winding tube |
| CN105276620A (en) * | 2015-06-26 | 2016-01-27 | 中航空天发动机研究院有限公司 | Composite cooling structure for wall of combustion chamber flame tube of aero-engine |
| CN205065799U (en) * | 2015-08-03 | 2016-03-02 | 华中科技大学 | A flame holder for combustion chamber and combustion chamber thereof |
| CN108626751A (en) * | 2017-03-15 | 2018-10-09 | 中国航发商用航空发动机有限责任公司 | Burner inner liner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123565A (en) * | 2023-02-09 | 2023-05-16 | 中国空气动力研究与发展中心空天技术研究所 | Water-cooling ignition section of combustion type air heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109737455B (en) | 2021-01-19 |
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