CN203162988U - Two-stage radial lean burn pre-mix type low emission gas nozzle - Google Patents
Two-stage radial lean burn pre-mix type low emission gas nozzle Download PDFInfo
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- CN203162988U CN203162988U CN 201320155736 CN201320155736U CN203162988U CN 203162988 U CN203162988 U CN 203162988U CN 201320155736 CN201320155736 CN 201320155736 CN 201320155736 U CN201320155736 U CN 201320155736U CN 203162988 U CN203162988 U CN 203162988U
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- annular chamber
- cyclone
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Abstract
The utility model discloses a two-stage radial lean burn pre-mix type low emission gas nozzle. The two-stage radial lean burn pre-mix type low emission gas nozzle is characterized in that a shell and a whirlcone are included, an air flow channel is formed inside the shell, the air flow channel is connected with an extrusion device, air outlets are evenly distributed in the end face of the extrusion device, the extrusion device is placed in the whirlcone, the periphery where the whirlcone is placed on the extrusion device is an annular cavity, the shell is provided with a fuel gas inlet channel which is communicated with the annular cavity, and the whirlcone is provided with a fuel gas discharging channel which is communicated with the annular cavity. The two-stage radial lean burn pre-mix type low emission gas nozzle can guarantee fuel gas and the air to be mixed completely, burning of the fuel gas is more stable, and pollutant emission is lower.
Description
Technical field
The utility model belongs to the energy source and power industry, be specifically related to the premixed low emission gas nozzle of the radially poor combustion of a kind of two-stage, it utilizes the lean fuel premixed combustion technology by adopting two-stage radial vortex structure, realize reducing the gas turbine pollutant emission, improve the gas turbine capability of environmental protection.
Background technology
For guaranteeing the good combustion stability of gas-turbine combustion chamber, diffusion combustion is generally adopted in the combustion chamber, i.e. combustion gas and air are not pre-mixed, but the burning while mixing.This combustion system combustion gas can not fully mix with air, and discharged nitrous oxides is too high, causes serious environmental to pollute, and the poor stability of burning.
The utility model content
The utility model provides the radially poor combustion of a kind of two-stage premixed low emission gas nozzle, satisfies the purpose of gas turbine smooth combustion and reduction pollutant emission.
The purpose of this utility model realizes in the following manner: the premixed low emission gas nozzle of the radially poor combustion of this two-stage, the technical scheme that adopts is: comprise housing and cyclone, be provided with gas channel in the described housing, gas channel connects detrusor, the end face of detrusor is evenly equipped with venthole, detrusor is in the cyclone, the periphery that is in detrusor on the cyclone is annular chamber, housing is provided with the combustion gas inlet channel that communicates with annular chamber, and cyclone is provided with the fuel gas exhaust passage that communicates with annular chamber.
Preferably, be provided with the dividing plate of annular in the described cyclone, dividing plate is separated into annular chamber and is followed successively by first annular chamber and second annular chamber from outside to inside, second annular chamber communicates with the 3rd annular chamber of cyclone rear side, the combustion gas inlet channel is divided into the first combustion gas inlet channel and the second combustion gas inlet channel that communicates with first annular chamber and second annular chamber respectively, cyclone is provided with the first fuel gas exhaust passage and the second fuel gas exhaust passage that communicates with first annular chamber and the 3rd annular chamber respectively, and two fuel gas exhaust passage ends close with the annular chamber that communicates separately are respectively the first combustion gas delivery port and the second combustion gas delivery port, away from being respectively first gas outlet and second gas outlet with an end of the annular chamber that communicates separately.
Preferably, the inner circumferential that is in the 3rd annular chamber on the described cyclone is distributed with angling hole, and the rear side that is in detrusor in the cyclone is provided with cup shell, and angling hole communicates with the chamber at cup shell place, and the side face of cup shell is evenly equipped with passage.
Preferably, described housing and cyclone are connected to form first annular chamber by camber member, and the shoulder place of cyclone is covered with capping and forms the 3rd annular chamber.
The beneficial effects of the utility model are: the premixed low emission gas nozzle of the radially poor combustion of this two-stage, can guarantee fully mixing of combustion gas and air, and it is more stable to burn, and pollutant emission is lower.
Description of drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the side view of Fig. 3.
Fig. 3 is the structural representation of cyclone of the present utility model.
Fig. 4 is the structural representation of detrusor of the present utility model.
The specific embodiment:
With reference to each accompanying drawing, the premixed low emission gas nozzle of the radially poor combustion of this two-stage, comprise housing 1 and cyclone 2, be provided with gas channel 4 in the described housing 1, gas channel 4 connects detrusor 3, and the end face of detrusor 3 is evenly equipped with venthole, detrusor 3 is in the cyclone 2, the periphery that is in detrusor 3 on the cyclone 2 is annular chamber, and housing 1 is provided with the combustion gas inlet channel that communicates with annular chamber, and cyclone 2 is provided with the fuel gas exhaust passage that communicates with annular chamber.Be provided with the dividing plate 16 of annular in the cyclone 2, dividing plate 16 is separated into annular chamber and is followed successively by first annular chamber 6 and second annular chamber 5 from outside to inside, second annular chamber 5 communicates with the 3rd annular chamber 7 of cyclone 2 rear sides, the combustion gas inlet channel is divided into the first combustion gas inlet channel 12 and the second combustion gas inlet channel 13 that communicates with first annular chamber 6 and second annular chamber 5 respectively, cyclone 2 is provided with the first fuel gas exhaust passage and the second fuel gas exhaust passage that communicates with first annular chamber 6 and the 3rd annular chamber 7 respectively, and two fuel gas exhaust passage ends close with the annular chamber that communicates separately are respectively the first combustion gas delivery port 18 and the second combustion gas delivery port 17, away from being respectively first gas outlet 9 and second gas outlet 10 with an end of the annular chamber that communicates separately.The inner circumferential that is in the 3rd annular chamber 7 on the cyclone 2 is distributed with angling hole 11, and the rear side that is in detrusor 3 in the cyclone 2 is provided with cup shell 8, and angling hole 11 communicates with the chamber at cup shell 8 places, and the side face of cup shell 8 is evenly equipped with passage.Housing 1 and cyclone 2 are connected to form first annular chamber 6 by camber member 14, and the shoulder place of cyclone 2 is covered with capping 15 and forms the 3rd annular chamber 7.
The combustion gas of first order gas circuit enters first annular chamber 6 through the first combustion gas inlet channel 12, enters the first fuel gas exhaust passage by the first combustion gas delivery port 18 again, flow out from first gas outlet 9 at last, and with first annular chamber 6 in the abundant premix of air.Second level gas circuit combustion gas enters second annular chamber 5 and the 3rd annular chamber 7 successively through the second combustion gas inlet channel 13, enter the second fuel gas exhaust passage by the second combustion gas delivery port 17 again, flow out from second gas outlet 10 at last, and with second annular chamber 5 in the abundant premix of air, form the gaseous mixture of air and combustion gas, meanwhile extraneous air enters gas channel 4 and flows out by the venthole on the detrusor 3 and mix again with gaseous mixture, the angling hole 11 of the circumferential distribution on the cyclone 2 also can import extraneous air in the cyclone 2 and mix with gaseous mixture in addition, combustion gas makes both mixing more abundant with repeatedly mixing of air, make fuel gas buring more thorough, improve the stability of burning, significantly reduced the discharging of pollutant.Dividing plate 16 is used for separating first annular chamber 6 and second annular chamber 5, prevents from collaborating between two annular chambers, and the cyclone 2 circumferentially angling hole 11 of distribution is used for importing cold air, is used for mixing and cooling off the two-stage gas circuit gaseous mixture in gas nozzle exit.
Claims (4)
1. premixed low emission gas nozzle of the radially poor combustion of two-stage, it is characterized in that: comprise housing and cyclone, be provided with gas channel in the described housing, gas channel connects detrusor, the end face of detrusor is evenly equipped with venthole, and detrusor is in the cyclone, and the periphery that is in detrusor on the cyclone is annular chamber, housing is provided with the combustion gas inlet channel that communicates with annular chamber, and cyclone is provided with the fuel gas exhaust passage that communicates with annular chamber.
2. the premixed low emission gas nozzle of the radially poor combustion of a kind of two-stage as claimed in claim 1, it is characterized in that: the dividing plate that is provided with annular in the cyclone, dividing plate is separated into annular chamber and is followed successively by first annular chamber and second annular chamber from outside to inside, second annular chamber communicates with the 3rd annular chamber of cyclone rear side, the combustion gas inlet channel is divided into the first combustion gas inlet channel and the second combustion gas inlet channel that communicates with first annular chamber and second annular chamber respectively, cyclone is provided with the first fuel gas exhaust passage and the second fuel gas exhaust passage that communicates with first annular chamber and the 3rd annular chamber respectively, and two fuel gas exhaust passage ends close with the annular chamber that communicates separately are respectively the first combustion gas delivery port and the second combustion gas delivery port, away from being respectively first gas outlet and second gas outlet with an end of the annular chamber that communicates separately.
3. the premixed low emission gas nozzle of the radially poor combustion of a kind of two-stage as claimed in claim 2, it is characterized in that: the inner circumferential that is in the 3rd annular chamber on the cyclone is distributed with angling hole, the rear side that is in detrusor in the cyclone is provided with cup shell, angling hole communicates with the chamber at cup shell place, and the side face of cup shell is evenly equipped with passage.
4. the premixed low emission gas nozzle of the radially poor combustion of a kind of two-stage as claimed in claim 2, it is characterized in that: housing and cyclone are connected to form first annular chamber by camber member, and the shoulder place of cyclone is covered with capping and forms the 3rd annular chamber.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201320155736 CN203162988U (en) | 2013-04-01 | 2013-04-01 | Two-stage radial lean burn pre-mix type low emission gas nozzle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320155736 CN203162988U (en) | 2013-04-01 | 2013-04-01 | Two-stage radial lean burn pre-mix type low emission gas nozzle |
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CN203162988U true CN203162988U (en) | 2013-08-28 |
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CN 201320155736 Expired - Fee Related CN203162988U (en) | 2013-04-01 | 2013-04-01 | Two-stage radial lean burn pre-mix type low emission gas nozzle |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103148514A (en) * | 2013-04-01 | 2013-06-12 | 中国船舶重工集团公司第七�三研究所 | Two-stage radial lean combustion pre-mixing type low-emission gas nozzle |
CN103486592A (en) * | 2013-10-23 | 2014-01-01 | 中国船舶重工集团公司第七�三研究所 | Gas-liquid dual-fuel integrated nozzle |
CN111306575A (en) * | 2018-12-12 | 2020-06-19 | 通用电气公司 | Fuel injector assembly for a heat engine |
-
2013
- 2013-04-01 CN CN 201320155736 patent/CN203162988U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103148514A (en) * | 2013-04-01 | 2013-06-12 | 中国船舶重工集团公司第七�三研究所 | Two-stage radial lean combustion pre-mixing type low-emission gas nozzle |
CN103486592A (en) * | 2013-10-23 | 2014-01-01 | 中国船舶重工集团公司第七�三研究所 | Gas-liquid dual-fuel integrated nozzle |
CN103486592B (en) * | 2013-10-23 | 2016-08-31 | 中国船舶重工集团公司第七�三研究所 | Gas-liquid double fuel integrated spray nozzle |
CN111306575A (en) * | 2018-12-12 | 2020-06-19 | 通用电气公司 | Fuel injector assembly for a heat engine |
CN111306575B (en) * | 2018-12-12 | 2022-02-18 | 通用电气公司 | Fuel injector assembly for a heat engine |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20140401 |