CN105649816A - Novel cooling structure for plug type center body of two-dimensional plug type nozzle - Google Patents
Novel cooling structure for plug type center body of two-dimensional plug type nozzle Download PDFInfo
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- CN105649816A CN105649816A CN201410723248.0A CN201410723248A CN105649816A CN 105649816 A CN105649816 A CN 105649816A CN 201410723248 A CN201410723248 A CN 201410723248A CN 105649816 A CN105649816 A CN 105649816A
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- pipe
- centrosome
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Abstract
A novel cooling structure for a plug type center body of a two-dimensional plug type nozzle comprises a cool air pipeline, a thin-wall round-to-square structure, supports and shielding rotational flow blade-shaped structures; the cool air pipeline comprises an air leading pipe, an elbow, an air distribution pipe, a three-way connector and an air guiding pipe; the front end of the air leading pipe is connected to an air compressor, high-pressure air flows to the air distribution pipe through the air leading pipe, enters the supports through the air guiding pipe and then is guided into the hollow structure of a cylinder wall of the thin-wall round-to-square structure, cool air enters cooling channels of the shielding rotational flow blade-shaped structures and finally flows out through cool air film holes in a wall adhesion mode, and the rotational flow blade-shaped structures are cooled and protected well; the shielding rotational flow blade-shaped structures are arranged in the thin-wall round-to-square structure in the circumferential direction of the cylinder wall, and the sections of the front ends of the shielding rotational flow blade-shaped structures and the sections of the rear ends of the shielding rotational flow blade-shaped structures are arranged in the circumferential direction. The novel cooling structure has the advantages that the shortcoming that cooling of plug type center bodies of conventional two-dimensional plug type nozzles is difficult is overcome, the utilization rate of the cool air is high, and the cooling effect is good.
Description
Technical field
The present invention relates to aero-engine jet pipe field, particularly to a kind of Novel Dual plug nozzle plug centrosome cooling structure.
Background technology
Conventional binary plug nozzle, adds plug centrosome in nozzle exit position, and this plug centrosome is in the jet flow environment of high temperature, high speed, in order to protect plug centrosome and improve stealth capabilities, is necessary for this plug centrosome is cooled down; But this working environment residing for plug centrosome brings difficulty to the cooling of centrosome; Again owing to plug centrosome is in nozzle exit position, the layout of cooling pipelines is restricted.
Summary of the invention
The invention aims to make up the defect of conventional binary plug nozzle plug centrosome cooling, a kind of novel binary plug nozzle plug centrosome cooling structure of special offer.
The invention provides a kind of Novel Dual plug nozzle plug centrosome cooling structure, it is characterised in that: include cooling pipelines, thin-wall circular turns square structure 2, support 3 and block eddy flow leaf structure 4;
Wherein: cooling pipelines includes air entraining pipe 1, elbow 5, gas-distributing pipe 6, three way cock 7 and airway 8; Air entraining pipe 1 front end is connected with compressor; gases at high pressure are by air entraining pipe 1 to gas-distributing pipe 6; support 3 is entered through airway 8; then it is introduced in the hollow structure that thin-wall circular turns square structure 2 barrel; then cooling gas enters the cooling duct blocking eddy flow leaf structure 4; last by the cooling adherent outflow of air film hole, eddy flow leaf structure is formed good cooling and protection.
Block eddy flow leaf structure 4 and turn in square structure 2 along barrel circumferentially at thin-wall circular, blocking eddy flow leaf structure front elevational sectional and rear end section is arranged in the circumferential, so that blocking eddy flow leaf structure, jet pipe front hot junction component being blocked; Thus realizing good stealthy function.
Support 3 is fixedly connected on thin-wall circular and turns on square structure 2, plays the effect of fixing plug centrosome. Three way cock 7 connects gas-distributing pipe 6 and air entraining pipe 1, and elbow connects gas-distributing pipe 6 and airway 8.
Blocking eddy flow leaf structure 4 along barrel circumferentially, quantity is 2��20, and swirl vane is arranged cooling air film hole.
It is hollow structure that thin-wall circular turns square structure 2 barrel, and is connected with cooling gas.
Blocking eddy flow leaf structure 4 inner eddy flow leaf structure is hollow structure, and is connected with cooling gas.
Along jet pipe circumferentially, quantity is 4��8 to support 3.
Support 3 is hollow structure, and is connected with cooling gas.
Advantages of the present invention:
Novel Dual plug nozzle plug centrosome cooling structure of the present invention, do not affect plug centrosome cooling scheme to implement and bleed air line layout, make up the defect that conventional binary plug nozzle plug centrosome cooling is difficult, the advantage simultaneously having cold air utilization rate height, good cooling results concurrently.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is binary plug nozzle structure and plug centrosome cooling structure sectional view;
Fig. 2 is that binary plug nozzle is just waiting survey view;
Fig. 3 is binary plug nozzle and cooling structure frontal view;
Fig. 4 is the binary plug nozzle plug main sectional view of centrosome cooling structure;
Fig. 5 is binary plug nozzle plug centrosome cooling structure sectional view;
A turns side's section for circle, and B is converging portion, and C is expansion segment, and D is sidewall, and E is jet pipe outer housing.
Detailed description of the invention
Embodiment 1
Present embodiments provide a kind of Novel Dual plug nozzle plug centrosome cooling structure, it is characterised in that: include cooling pipelines, thin-wall circular turns square structure 2, support 3 and block eddy flow leaf structure 4;
Wherein: cooling pipelines includes air entraining pipe 1, elbow 5, gas-distributing pipe 6, three way cock 7 and airway 8; Air entraining pipe 1 front end is connected with compressor; gases at high pressure are by air entraining pipe 1 to gas-distributing pipe 6; support 3 is entered through airway 8; then it is introduced in the hollow structure that thin-wall circular turns square structure 2 barrel; then cooling gas enters the cooling duct blocking eddy flow leaf structure 4; last by the cooling adherent outflow of air film hole, eddy flow leaf structure is formed good cooling and protection.
Block eddy flow leaf structure 4 and turn in square structure 2 along barrel circumferentially at thin-wall circular, blocking eddy flow leaf structure front elevational sectional and rear end section is arranged in the circumferential, so that blocking eddy flow leaf structure, jet pipe front hot junction component being blocked; Thus realizing good stealthy function.
Support 3 is fixedly connected on thin-wall circular and turns on square structure 2, plays the effect of fixing plug centrosome. Three way cock 7 connects gas-distributing pipe 6 and air entraining pipe 1, and elbow connects gas-distributing pipe 6 and airway 8.
Blocking eddy flow leaf structure 4 along barrel circumferentially, quantity is 2, and swirl vane is arranged cooling air film hole.
It is hollow structure that thin-wall circular turns square structure 2 barrel, and is connected with cooling gas.
Blocking eddy flow leaf structure 4 inner eddy flow leaf structure is hollow structure, and is connected with cooling gas.
Along jet pipe circumferentially, quantity is 4 to support 3.
Support 3 is hollow structure, and is connected with cooling gas.
Embodiment 2
Present embodiments provide a kind of Novel Dual plug nozzle plug centrosome cooling structure, it is characterised in that: include cooling pipelines, thin-wall circular turns square structure 2, support 3 and block eddy flow leaf structure 4;
Wherein: cooling pipelines includes air entraining pipe 1, elbow 5, gas-distributing pipe 6, three way cock 7 and airway 8; Air entraining pipe 1 front end is connected with compressor; gases at high pressure are by air entraining pipe 1 to gas-distributing pipe 6; support 3 is entered through airway 8; then it is introduced in the hollow structure that thin-wall circular turns square structure 2 barrel; then cooling gas enters the cooling duct blocking eddy flow leaf structure 4; last by the cooling adherent outflow of air film hole, eddy flow leaf structure is formed good cooling and protection.
Block eddy flow leaf structure 4 and turn in square structure 2 along barrel circumferentially at thin-wall circular, blocking eddy flow leaf structure front elevational sectional and rear end section is arranged in the circumferential, so that blocking eddy flow leaf structure, jet pipe front hot junction component being blocked; Thus realizing good stealthy function.
Support 3 is fixedly connected on thin-wall circular and turns on square structure 2, plays the effect of fixing plug centrosome. Three way cock 7 connects gas-distributing pipe 6 and air entraining pipe 1, and elbow connects gas-distributing pipe 6 and airway 8.
Blocking eddy flow leaf structure 4 along barrel circumferentially, quantity is 10, and swirl vane is arranged cooling air film hole.
It is hollow structure that thin-wall circular turns square structure 2 barrel, and is connected with cooling gas.
Blocking eddy flow leaf structure 4 inner eddy flow leaf structure is hollow structure, and is connected with cooling gas.
Along jet pipe circumferentially, quantity is 6 to support 3.
Support 3 is hollow structure, and is connected with cooling gas.
Embodiment 3
Present embodiments provide a kind of Novel Dual plug nozzle plug centrosome cooling structure, it is characterised in that: include cooling pipelines, thin-wall circular turns square structure 2, support 3 and block eddy flow leaf structure 4;
Wherein: cooling pipelines includes air entraining pipe 1, elbow 5, gas-distributing pipe 6, three way cock 7 and airway 8; Air entraining pipe 1 front end is connected with compressor; gases at high pressure are by air entraining pipe 1 to gas-distributing pipe 6; support 3 is entered through airway 8; then it is introduced in the hollow structure that thin-wall circular turns square structure 2 barrel; then cooling gas enters the cooling duct blocking eddy flow leaf structure 4; last by the cooling adherent outflow of air film hole, eddy flow leaf structure is formed good cooling and protection.
Block eddy flow leaf structure 4 and turn in square structure 2 along barrel circumferentially at thin-wall circular, blocking eddy flow leaf structure front elevational sectional and rear end section is arranged in the circumferential, so that blocking eddy flow leaf structure, jet pipe front hot junction component being blocked; Thus realizing good stealthy function.
Support 3 is fixedly connected on thin-wall circular and turns on square structure 2, plays the effect of fixing plug centrosome. Three way cock 7 connects gas-distributing pipe 6 and air entraining pipe 1, and elbow connects gas-distributing pipe 6 and airway 8.
Blocking eddy flow leaf structure 4 along barrel circumferentially, quantity is 20, and swirl vane is arranged cooling air film hole.
It is hollow structure that thin-wall circular turns square structure 2 barrel, and is connected with cooling gas.
Blocking eddy flow leaf structure 4 inner eddy flow leaf structure is hollow structure, and is connected with cooling gas.
Along jet pipe circumferentially, quantity is 8 to support 3.
Support 3 is hollow structure, and is connected with cooling gas.
Claims (6)
1. a Novel Dual plug nozzle plug centrosome cooling structure, it is characterised in that: include cooling pipelines, thin-wall circular turns square structure (2), support (3) and block eddy flow leaf structure (4);
Wherein: cooling pipelines includes air entraining pipe (1), elbow (5), gas-distributing pipe (6), three way cock (7) and airway (8); Air entraining pipe (1) front end is connected with compressor, gases at high pressure are by air entraining pipe (1) to gas-distributing pipe (6), support (3) is entered through airway (8), then it is introduced in the hollow structure that thin-wall circular turns square structure (2) barrel, then cooling gas enters the cooling duct blocking eddy flow leaf structure (4), finally by the cooling adherent outflow of air film hole;
Block eddy flow leaf structure (4) and turn in square structure (2) along barrel circumferentially at thin-wall circular, block eddy flow leaf structure front elevational sectional and rear end section is arranged in the circumferential;
Support (3) is fixedly connected on thin-wall circular and turns on square structure (2), plays the effect of fixing plug centrosome;Three way cock (7) connects gas-distributing pipe (6) and air entraining pipe (1), and elbow connects gas-distributing pipe (6) and airway (8).
2. the Novel Dual plug nozzle plug centrosome cooling structure described in claim 1, it is characterised in that: described blocks eddy flow leaf structure (4) along barrel circumferentially, and quantity is 2��20, and swirl vane is arranged cooling air film hole.
3. the Novel Dual plug nozzle plug centrosome cooling structure described in claim 1, it is characterised in that: it is hollow structure that described thin-wall circular turns square structure (2) barrel, and is connected with cooling gas.
4. the Novel Dual plug nozzle plug centrosome cooling structure described in claim 1, it is characterised in that: described eddy flow leaf structure (4) the inner eddy flow leaf structure that blocks is hollow structure, and is connected with cooling gas.
5. the Novel Dual plug nozzle plug centrosome cooling structure described in claim 1, it is characterised in that: along jet pipe circumferentially, quantity is 4��8 to described support (3).
6. the Novel Dual plug nozzle plug centrosome cooling structure described in claim 1, it is characterised in that: described support (3) is hollow structure, and is connected with cooling gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723248.0A CN105649816B (en) | 2014-12-03 | 2014-12-03 | A kind of binary plug nozzle plug centerbody cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410723248.0A CN105649816B (en) | 2014-12-03 | 2014-12-03 | A kind of binary plug nozzle plug centerbody cooling structure |
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| Publication Number | Publication Date |
|---|---|
| CN105649816A true CN105649816A (en) | 2016-06-08 |
| CN105649816B CN105649816B (en) | 2018-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410723248.0A Active CN105649816B (en) | 2014-12-03 | 2014-12-03 | A kind of binary plug nozzle plug centerbody cooling structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878714A (en) * | 2019-12-11 | 2020-03-13 | 南昌航空大学 | Gas turbine compressor cooling system |
| CN114151197A (en) * | 2021-10-20 | 2022-03-08 | 中国航发四川燃气涡轮研究院 | Cooling drainage structure of thin-wall high-rib round-square casing |
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| US2599879A (en) * | 1942-05-13 | 1952-06-10 | Power Jets Res & Dev Ltd | Exhaust induced cooling system for gas turbines |
| US3372874A (en) * | 1964-11-09 | 1968-03-12 | Rolls Royce | Jet nozzle |
| US4214441A (en) * | 1978-09-12 | 1980-07-29 | The United States Of America As Represented By The Secretary Of The Navy | Infrared suppressor device |
| CN102032072A (en) * | 2010-11-24 | 2011-04-27 | 南京航空航天大学 | Exhaust system for gaseous film cooling central cone of turbofan aircraft engine |
| CN102953865A (en) * | 2012-11-08 | 2013-03-06 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug cooling structure of plug type axisymmetric nozzle |
| CN203175702U (en) * | 2013-03-04 | 2013-09-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Central cone cooling structure of plug type axially-symmetrical spay tube |
| CN203214189U (en) * | 2013-04-03 | 2013-09-25 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug type axial symmetry spray pipe central cone circulation adjustable cooling structure |
| CN103696873A (en) * | 2013-12-04 | 2014-04-02 | 中国航空工业集团公司沈阳发动机设计研究所 | Axisymmetric vectoring nozzle with good stealth function |
| CN104033279A (en) * | 2014-06-06 | 2014-09-10 | 中国航空工业集团公司沈阳发动机设计研究所 | Novel two-dimensional vector nozzle |
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2014
- 2014-12-03 CN CN201410723248.0A patent/CN105649816B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2599879A (en) * | 1942-05-13 | 1952-06-10 | Power Jets Res & Dev Ltd | Exhaust induced cooling system for gas turbines |
| US3372874A (en) * | 1964-11-09 | 1968-03-12 | Rolls Royce | Jet nozzle |
| US4214441A (en) * | 1978-09-12 | 1980-07-29 | The United States Of America As Represented By The Secretary Of The Navy | Infrared suppressor device |
| CN102032072A (en) * | 2010-11-24 | 2011-04-27 | 南京航空航天大学 | Exhaust system for gaseous film cooling central cone of turbofan aircraft engine |
| CN102953865A (en) * | 2012-11-08 | 2013-03-06 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug cooling structure of plug type axisymmetric nozzle |
| CN203175702U (en) * | 2013-03-04 | 2013-09-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Central cone cooling structure of plug type axially-symmetrical spay tube |
| CN203214189U (en) * | 2013-04-03 | 2013-09-25 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug type axial symmetry spray pipe central cone circulation adjustable cooling structure |
| CN103696873A (en) * | 2013-12-04 | 2014-04-02 | 中国航空工业集团公司沈阳发动机设计研究所 | Axisymmetric vectoring nozzle with good stealth function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878714A (en) * | 2019-12-11 | 2020-03-13 | 南昌航空大学 | Gas turbine compressor cooling system |
| CN114151197A (en) * | 2021-10-20 | 2022-03-08 | 中国航发四川燃气涡轮研究院 | Cooling drainage structure of thin-wall high-rib round-square casing |
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| Publication number | Publication date |
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| CN105649816B (en) | 2018-03-16 |
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