CN105546580A - Combustor ejector nozzle device - Google Patents
Combustor ejector nozzle device Download PDFInfo
- Publication number
- CN105546580A CN105546580A CN201511017274.2A CN201511017274A CN105546580A CN 105546580 A CN105546580 A CN 105546580A CN 201511017274 A CN201511017274 A CN 201511017274A CN 105546580 A CN105546580 A CN 105546580A
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- China
- Prior art keywords
- driving nozzle
- fluid
- nozzle
- burner
- jet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
Abstract
The invention discloses a combustor ejector nozzle device which comprises an ejector nozzle capable of stabilizing combustion and a jet nozzle. The ejector nozzle comprises an ejector nozzle outlet section, an ejector nozzle inlet section, an ejector nozzle fluid inlet, an ejector nozzle fluid outlet and an ejector nozzle fluid sucking hole; the jet nozzle is embedded in the ejector nozzle and used for sucking fluid around the ejector nozzle into the ejector nozzle; the jet nozzle comprises a jet nozzle fluid inlet and a jet nozzle fluid outlet. High-pressure fluid entering the ejector nozzle fluid inlet is jetted at a high speed to the interior of the ejector nozzle through the jet nozzle fluid outlet, and the high-pressure fluid and fluid sucked from the ejector nozzle fluid sucking hole are mixed and then flow out from the ejector nozzle fluid outlet so as to jointly participate in a combustion reaction. By means of the combustor ejector nozzle device, fluid mixing in a combustion area can be promoted, the combustion state is improved, a flame is prevented from being extinguished, combustion stability is enhanced, and the flame length is reduced; the effects of widening the stable operation range of a combustor, improving combustion efficiency, reducing the axial size of a combustion chamber and reducing pollutant emission are achieved.
Description
Technical field
The invention belongs to burner arts, relate to a kind of burner being specially adapted to gas turbine, boiler, chemical furnace etc., particularly relate to a kind of can enhanced burning stability, the burner driving nozzle device that prevents burner flame-out.
Background technology
Gas turbine, due to features such as the little and power output of unit volume are large, is widely used in the industries such as electric power, aviation, petrochemical industry.Because energy crisis and environment worsen, be badly in need of development high-efficiency cleaning combustion chamber, igniting is reliable, flameholding, efficiency are high and the characteristic such as low emission to require combustion chamber to have.Current China problem of environmental pollution is very serious, and development gas turbine clean-burning technology is very urgent.Gas turbine manufacturer has developed multiple clean-burning technology, as poor premixed combustion technology, dilute phase premix and pre-evaporation technology, oil-poor direct injection technology and catalytic combustion technology etc., although these technology effectively can reduce the discharge of pollutant, all face the problem of combustion instability.As a kind of radial grading combustion technology for liquid fuel combustion of AM General company exploitation, nitric oxide discharge effectively can be reduced.But, because main flame stabilization is at the low speed edge of shear layer, periodic vortex shedding can be produced near shear layer low-speed region, near point of safes, easily produce vibration, when off-design behaviour runs, combustion instability phenomenon easily occur.
Similar with gas turbine burner, other all types of industries burner is also faced with smooth combustion and the contradiction reducing pollutant emission.
Summary of the invention
In view of the above problems, the present invention proposes a kind of burner driving nozzle device, utilize the fluid near the fluid injection burner driving nozzle participating in combustion reaction, can make fluid adsorption on driving nozzle inlet hole, contribute to forming recirculating zone, flame is prevented to be blown out, promote combustion zone blending of falling liquid film, improve fired state, enhanced burning stability, shorten the length of flame, reach the effect widened burner and stablize range of operation, improve efficiency of combustion, reduce combustion chamber axial dimension and reduction pollutant emission.In raising efficiency of combustion with while reducing pollutant emission, enhanced burning stability.
A kind of burner driving nozzle device provided by the invention comprises: driving nozzle and the jet nozzle being embedded in described driving nozzle inside, wherein:
Described driving nozzle is used for smooth combustion, and it comprises: driving nozzle outlet section, driving nozzle entrance, driving nozzle fluid intake, driving nozzle fluid issuing and driving nozzle fluid inlet hole;
Described jet nozzle is used for the inside fluid around described driving nozzle being sucked into described driving nozzle, it at least comprises jet nozzle fluid intake and jet nozzle fluid issuing, and described jet nozzle fluid intake and described driving nozzle fluid intake coincide;
Wherein, the high-pressure fluid entered from described driving nozzle fluid intake forms first fluid by described jet nozzle fluid issuing high velocity jet to the inside of described driving nozzle, the fluid sucked from described driving nozzle fluid inlet hole forms second fluid, and described first fluid is flowed out by described driving nozzle fluid issuing and jointly participates in combustion reaction together with second fluid blending.
Alternatively, the rapidoprint of described driving nozzle and jet nozzle is pottery, quartz glass, stainless steel or high-temperature alloy.
Alternatively, the high-pressure fluid entered from described driving nozzle fluid intake is the one air, combustion gas, air and fuel gas mixture, air and fuel oil mixture, air and coal dust intermixture.
Alternatively, described burner driving nozzle device integral casting forming or described jet nozzle is welded on the inside of described driving nozzle.
Alternatively, the quantity of described driving nozzle fluid inlet hole is 1-100.
Alternatively, the shape of described driving nozzle fluid inlet hole is triangle, polygon or circle.
Alternatively, when described driving nozzle fluid inlet hole is circular, diameter is 0.1mm-10mm; Described driving nozzle fluid inlet hole be triangle or polygon time, the length of side is 0.1mm-10mm.
Alternatively, described burner driving nozzle device can multiplely combinationally use together.
Alternatively, multiple burner driving nozzle device is according to circular array/rectangular array, and when arranging according to circular array, often enclosing nozzle quantity is 1-100, can arrange 1-100 circle; During according to rectangular array, often row nozzle quantity is 1-100, and often row nozzle quantity is 1-100.
Alternatively, described driving nozzle outlet section is installed cyclone or is not installed cyclone.。
As can be seen from technique scheme, a kind of burner driving nozzle device provided by the invention has following beneficial effect:
(1) the present invention can form recirculating zone by the fluid near ejection burner driving nozzle, can make fluid adsorption on driving nozzle inlet hole, prevent flame to be blown out, enhanced burning stability, reduces combustion chamber axial dimension;
(2) the present invention can make not clean-burning material again participate in burning by ejection burner outlet fluid, improves efficiency of combustion;
(3) the present invention can dilute the reactant participating in burning by ejection burner outlet fluid, reduces burning pollutant discharge.
Accompanying drawing explanation
Fig. 1 is a kind of according to an embodiment of the invention structural representation of burner driving nozzle device.
Fig. 2 partly cuts open line drawing for the driving nozzle of burner shown in Fig. 1 device.
Fig. 3 is the driving nozzle of burner shown in Fig. 1 device fluid flow inside path schematic diagram.
The burner schematic diagram that Fig. 4 is formed for the arrangement of the driving nozzle of burner shown in Fig. 1 device circular array.
The burner schematic diagram that Fig. 5 is formed for the driving nozzle of burner shown in Fig. 1 device rectangular array.
Main element symbol description of the present invention: 1-driving nozzle outlet section; 2-driving nozzle entrance; 3-driving nozzle fluid intake; 4-driving nozzle fluid issuing; 5-jet nozzle fluid issuing; 6-driving nozzle fluid inlet hole; 7-jet nozzle.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
The present invention embeds a jet nozzle in burner driving nozzle inside, fluid near driving nozzle can be drawn in the cavity of driving nozzle under the ejector action of combustion reactant jet, this part driven fluid participates in burning after mixing mutually with driving nozzle fluid inlet hole inlet fluid, thus reach prevent burner from stopping working, the object of enhanced burning stability, can also obtain simultaneously and reduce combustion chamber axial dimension, improve efficiency of combustion and reduce the effect of pollutant emission.
Fig. 1 is a kind of according to an embodiment of the invention structural representation of burner driving nozzle device.Fig. 2 partly cuts open line drawing for the burner driving nozzle device shown in Fig. 1; Fig. 3 is the burner driving nozzle device fluid flow inside path schematic diagram shown in Fig. 1; The burner schematic diagram that Fig. 4 is formed for the arrangement of the driving nozzle of burner shown in Fig. 1 device circular array; The burner schematic diagram that Fig. 5 is formed for the driving nozzle of burner shown in Fig. 1 device rectangular array.
Hereafter in conjunction with above-mentioned accompanying drawing, the concrete structure of burner driving nozzle device of the present invention and operation principle are illustrated, the present invention is a jet nozzle 7 in the indoor design of burner driving nozzle, as Figure 1-Figure 2, burner driving nozzle device provided by the invention comprises: driving nozzle and the jet nozzle 7 being embedded in described driving nozzle inside, wherein:
Described driving nozzle is used for smooth combustion, and it comprises: driving nozzle outlet section 1, driving nozzle entrance 2, driving nozzle fluid intake 3, driving nozzle fluid issuing 4, driving nozzle fluid inlet hole 6;
Described jet nozzle 7 is inner for the fluid around described driving nozzle being sucked into described driving nozzle, and it comprises jet nozzle fluid intake and jet nozzle fluid issuing 5, and wherein, described jet nozzle fluid intake and driving nozzle fluid intake 3 coincide;
Wherein, the high-pressure fluid entered from described driving nozzle fluid intake 3 forms first fluid by described jet nozzle fluid issuing 5 high velocity jet to the inside of described driving nozzle, the fluid sucked from described driving nozzle fluid inlet hole 6 forms second fluid, described first fluid is flowed out by described driving nozzle fluid issuing 4 and jointly participates in combustion reaction together with second fluid blending, as shown in Figure 3.
Therefore, the fluid entered from driving nozzle fluid intake 3 is the drive fluid of ejector action, also being the reactant participating in burning, can be air or combustion gas, also can be air and the mixture etc. of the mixture of oil, air and fuel oil mixture, air and coal dust.The specific works principle of fluid injection is that industry is known, and repeats no more here.
Four aspect benefits can be brought by the fluid near driving nozzle: one is make fluid adsorption on the inlet hole of driving nozzle, prevents flame to be blown out, can also reduce the height of flame, reduce the axial dimension of combustion chamber; Two is that the recirculating zone formed can prevent flame to be blown out, promotes blending, enhanced burning stability; Three is to make imperfect combustion material again participate in burning, and then improves efficiency of combustion; Four is backflows of nitrogen in combustion product, steam, carbon dioxide, can dilute combustion reactant, contributes to the generation reducing burning pollutant.
Wherein, the described driving nozzle of burner driving nozzle device and the rapidoprint of jet nozzle are pottery, quartz glass, stainless steel or high-temperature alloy.
Wherein, the inlet fluid of described burner driving nozzle device is the one in air, combustion gas, air and fuel gas mixture, air and fuel oil mixture, air and coal dust intermixture.
Wherein, described burner driving nozzle device integral casting forming or described jet nozzle is welded on the inside of described driving nozzle.
Wherein, the quantity of described driving nozzle fluid inlet hole is 1-100.
Wherein, the shape of described driving nozzle fluid inlet hole is triangle, polygon or circle.
Wherein, when described driving nozzle fluid inlet hole is circular, diameter is 0.1mm-10mm; Described driving nozzle fluid inlet hole be triangle or polygon time, the length of side can be 0.1mm-10mm.
Wherein, described burner driving nozzle device can multiplely combinationally use together, and multiple burner driving nozzle device is according to circular array/rectangular array, as shown in fig. 4-5, when arranging according to circular array, often enclosing nozzle quantity is 1-100, can arrange 1-100 circle; During according to rectangular array, often row nozzle quantity is 1-100, and often row nozzle quantity is 1-100.
Wherein, described driving nozzle outlet section is installed cyclone or is not installed cyclone.
In sum, a kind of burner driving nozzle device provided by the invention can be used for the industries such as aviation, chemical industry, generating, metallurgy, combustion instability sex chromosome mosaicism can be solved, combustion chamber axial dimension can be reduced simultaneously, improve efficiency of combustion, reduce burning pollutant discharge.Said burner driving nozzle device can be directly installed on the nozzle interface of existing burner, does not need the structure changing original burner, has advantage that is simple and compact for structure, highly versatile; Also can arrange multiple burner driving nozzle device, form the burner of many driving nozzles array.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a burner driving nozzle device, is characterized in that, this burner driving nozzle device comprises: driving nozzle and the jet nozzle being embedded in described driving nozzle inside, wherein:
Described driving nozzle is used for smooth combustion, and it comprises: driving nozzle outlet section, driving nozzle entrance, driving nozzle fluid intake, driving nozzle fluid issuing and driving nozzle fluid inlet hole;
Described jet nozzle is used for the inside fluid around described driving nozzle being sucked into described driving nozzle, it at least comprises jet nozzle fluid intake and jet nozzle fluid issuing, and described jet nozzle fluid intake and described driving nozzle fluid intake coincide;
Wherein, the high-pressure fluid entered from described driving nozzle fluid intake forms first fluid by described jet nozzle fluid issuing high velocity jet to the inside of described driving nozzle, the fluid sucked from described driving nozzle fluid inlet hole forms second fluid, and described first fluid is flowed out by described driving nozzle fluid issuing and jointly participates in combustion reaction together with second fluid blending.
2. burner driving nozzle device according to claim 1, is characterized in that, the rapidoprint of described driving nozzle and jet nozzle is pottery, quartz glass, stainless steel or high-temperature alloy.
3. burner driving nozzle device according to claim 1, it is characterized in that, the high-pressure fluid entered from described driving nozzle fluid intake is the one air, combustion gas, air and fuel gas mixture, air and fuel oil mixture, air and coal dust intermixture.
4. burner driving nozzle device according to claim 1, is characterized in that, described burner driving nozzle device integral casting forming or described jet nozzle is welded on the inside of described driving nozzle.
5. burner driving nozzle device according to claim 1, is characterized in that, the quantity of described driving nozzle fluid inlet hole is 1-100.
6. burner driving nozzle device according to claim 1, is characterized in that, the shape of described driving nozzle fluid inlet hole is triangle, polygon or circle.
7. burner driving nozzle device according to claim 1, is characterized in that, when described driving nozzle fluid inlet hole is circular, diameter is 0.1mm-10mm; Described driving nozzle fluid inlet hole be triangle or polygon time, the length of side is 0.1mm-10mm.
8. burner driving nozzle device according to claim 1, is characterized in that, described burner driving nozzle device can multiplely combinationally use together.
9. burner driving nozzle device according to claim 8, is characterized in that, multiple burner driving nozzle device is according to circular array/rectangular array, and when arranging according to circular array, often enclosing nozzle quantity is 1-100, can arrange 1-100 circle; During according to rectangular array, often row nozzle quantity is 1-100, and often row nozzle quantity is 1-100.
10. burner driving nozzle device according to claim 1, is characterized in that, described driving nozzle outlet section is installed cyclone or do not installed cyclone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017274.2A CN105546580A (en) | 2015-12-29 | 2015-12-29 | Combustor ejector nozzle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017274.2A CN105546580A (en) | 2015-12-29 | 2015-12-29 | Combustor ejector nozzle device |
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| Publication Number | Publication Date |
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| CN105546580A true CN105546580A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201511017274.2A Pending CN105546580A (en) | 2015-12-29 | 2015-12-29 | Combustor ejector nozzle device |
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| CN (1) | CN105546580A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691161A (en) * | 2016-12-20 | 2017-05-24 | 成都海科机械设备制造有限公司 | Wok |
| CN108518682A (en) * | 2018-05-04 | 2018-09-11 | 中国石油集团川庆钻探工程技术有限公司钻采工程技术研究院 | Reduce the Venturi tube and burner of noise |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2519531A (en) * | 1945-07-21 | 1950-08-22 | Lummus Co | Ejector apparatus |
| GB888100A (en) * | 1958-08-29 | 1962-01-24 | Tuval Miron | Method and apparatus for the production of gaseous products of combustion |
| US4051671A (en) * | 1974-10-31 | 1977-10-04 | Brewer John A | Jet engine with compressor driven by a ram air turbine |
| US5003782A (en) * | 1990-07-06 | 1991-04-02 | Zoran Kucerija | Gas expander based power plant system |
| CN101660545A (en) * | 2008-08-14 | 2010-03-03 | 通用电气公司 | Ejectors with separably secured nozzles, adjustable size nozzles, or adjustable size mixing tubes |
| CN101849111A (en) * | 2007-11-05 | 2010-09-29 | 康明斯过滤Ip公司 | Aspirator support structure |
| CN201724222U (en) * | 2009-11-26 | 2011-01-26 | 贵州航空发动机研究所 | Low NOx emission burning head for gas burner |
| CN102128086A (en) * | 2010-01-04 | 2011-07-20 | 通用电气公司 | Ejector-OBB Scheme for a Gas Turbine |
-
2015
- 2015-12-29 CN CN201511017274.2A patent/CN105546580A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2519531A (en) * | 1945-07-21 | 1950-08-22 | Lummus Co | Ejector apparatus |
| GB888100A (en) * | 1958-08-29 | 1962-01-24 | Tuval Miron | Method and apparatus for the production of gaseous products of combustion |
| US4051671A (en) * | 1974-10-31 | 1977-10-04 | Brewer John A | Jet engine with compressor driven by a ram air turbine |
| US5003782A (en) * | 1990-07-06 | 1991-04-02 | Zoran Kucerija | Gas expander based power plant system |
| CN101849111A (en) * | 2007-11-05 | 2010-09-29 | 康明斯过滤Ip公司 | Aspirator support structure |
| CN101660545A (en) * | 2008-08-14 | 2010-03-03 | 通用电气公司 | Ejectors with separably secured nozzles, adjustable size nozzles, or adjustable size mixing tubes |
| CN201724222U (en) * | 2009-11-26 | 2011-01-26 | 贵州航空发动机研究所 | Low NOx emission burning head for gas burner |
| CN102128086A (en) * | 2010-01-04 | 2011-07-20 | 通用电气公司 | Ejector-OBB Scheme for a Gas Turbine |
Non-Patent Citations (1)
| Title |
|---|
| 全国勘察设计注册工程师公用设备专业管理委: "《全国勘察设计注册公用设备工程师动力专业执业资格考试教材 第3版（2014.04）》", 30 April 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691161A (en) * | 2016-12-20 | 2017-05-24 | 成都海科机械设备制造有限公司 | Wok |
| CN108518682A (en) * | 2018-05-04 | 2018-09-11 | 中国石油集团川庆钻探工程技术有限公司钻采工程技术研究院 | Reduce the Venturi tube and burner of noise |
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Application publication date: 20160504 |
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