CN109073225B - Ultra-low emission combustor - Google Patents
Ultra-low emission combustor Download PDFInfo
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- CN109073225B CN109073225B CN201680085439.6A CN201680085439A CN109073225B CN 109073225 B CN109073225 B CN 109073225B CN 201680085439 A CN201680085439 A CN 201680085439A CN 109073225 B CN109073225 B CN 109073225B
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- flame
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- low emission
- air supply
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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
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/16—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
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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
- F23R3/34—Feeding into different combustion zones
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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
- F23R3/34—Feeding into different combustion zones
- F23R3/346—Feeding into different combustion zones for staged combustion
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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
- F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
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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
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
- F23R2900/03282—High speed injection of air and/or fuel inducing internal recirculation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
An embodiment of the present invention provides a burner that is excellent in high-efficiency low-emission combustion performance by configuring a flame by optimizing a split flame technique, an air classification technique, a partial fuel premixing technique, and a combustion gas recirculation technique. An embodiment of the present invention relates to an ultra low emission combustor including: a flame generating section that combusts the mixed fuel and air to generate a first flame; and a multistage air supply part inserted with a part of the flame generation part and supplying combustion gas or air to the second flame region in the combustion chamber.
Description
Technical Field
The present invention relates to an ultra low emission burner, and more particularly, to a burner having excellent high efficiency and low emission combustion performance by optimizing a split flame technique, an air classification technique, a partial fuel premixing technique, and a combustion gas recirculation technique to form a flame.
Background
High-efficiency, low-emission combustion of combustion systems has recently been indispensable due to energy depletion and environmental problems, and in order to achieve this, research for improving the performance of combustors and research for combustion control for improving the operation manner are actively conducted.
Representative low-emission combustion technologies in existence include a dye classification technology, an air classification technology, a combustion gas recirculation technology, a combustion gas internal recirculation technology, a reburning technology, an OFA technology, and the like. However, this combustion technology requires an additional external device or a configuration of a peripheral device requiring a complicated structure, and has a limitation in low emission. Therefore, recently, in order to overcome the above disadvantages, research/development of a combustion technology integrating and optimizing a plurality of low-emission combustion technologies is ongoing.
Korean patent No. 10-1512352 (title of the invention: ultra low nox combustion apparatus by internal recirculation of combustion gas and method of operating the same, hereinafter referred to as "prior art 1") discloses an ultra low nox combustion apparatus, characterized by comprising: a first fuel injection body for supplying a main fuel to the inside of the combustion furnace; at least one second fuel injection body disposed around the first fuel injection body and configured such that a front end thereof enters an interior of the combustion furnace; a recirculation induction unit configured to recirculate combustion gas generated from the combustion furnace to the combustion furnace by hydrodynamic force; a fuel supply portion for supplying fuel to the first fuel injection body and the second fuel injection body; an oxidizer supply part for supplying an oxidizer to a space between the first fuel injection body and the second fuel injection body; a central oxidizer injection part for transferring the oxidizer supplied from the oxidizer supply part into the combustion furnace along the inside of the first fuel injection body; an air staging sleeve configured to surround the first fuel injection body for staging air; and a recirculation promoting protrusion attached to an outer surface of the air classifying sleeve, wherein the oxidant supplied from the oxidant supply part is supplied in multiple stages through an inside and an outside of the air classifying sleeve, and the recirculation promoting protrusion is configured to increase a flow velocity of the combustion gas flowing between the recirculation guide part and the air classifying sleeve.
Disclosure of Invention
Technical problem
The related art 1 includes a plurality of components in order to integrate and apply the combustion gas recirculation combustion technology, the fuel classification technology, and the air classification technology, and thus has a complicated structure and increases manufacturing costs.
Also, the prior art 1 is designed to be used in a water tube boiler, and thus, performance is ensured only in a specific combustion system.
The technical problems to be solved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned can be clearly understood by those skilled in the art from the following description.
Technical scheme
The present invention is made to solve the above-mentioned problems, and provides an ultra-low emission burner, including: a flame generating section that combusts the mixed fuel and air to generate a first flame; and a multi-stage air supply part inserted with a part of the flame generating part, supplying combustion gas or air to a second flame region in the combustion chamber, and supplying air discharged through a Coanda (Coanda) outlet of the multi-stage air supply part to the second flame region while forming a Coanda flow path. The ultra-low emission combustor having such a structure configures a flame by optimizing a split flame technique, an air classification technique, a partial fuel premixing technique, and a combustion gas recirculation technique, and thus has excellent high-efficiency low-emission combustion performance.
Effects of the invention
The present invention optimizes the split flame technology, the air classification technology, the partial fuel premixing technology, and the combustion gas recirculation technology to form a flame, and thus, has excellent high-efficiency low-emission combustion performance.
In addition, the present invention forms a simple structure that optimizes the split flame technique, the air classification technique, the partial fuel premixing technique, and the combustion gas recirculation technique, thereby reducing manufacturing costs and facilitating maintenance and management.
Moreover, the present invention can be provided in a variety of devices, and can be used with a variety of combustion systems, not just with a particular combustion system.
The effects of the present invention are not limited to the above-described effects, and all effects that can be estimated from the configurations of the present invention described in the detailed description of the present invention and claims are included.
Drawings
Fig. 1 is a sectional view of a burner-side surface according to an embodiment of the present invention.
Fig. 2 is an enlarged sectional view of a combustor-side surface according to an embodiment of the present invention.
Fig. 3 is a front sectional view of a burner according to an embodiment of the present invention.
Fig. 4 is a front sectional view of a burner according to another embodiment of the present invention.
Reference numerals
10: first flame 11: first flame region
20: second flame 21: second flame region
30: the combustion chamber 100: multistage air supply unit
101: coanda exhaust port 102: combustion gas inlet
110: multistage air supply device 200: flame generating part
210: the fuel nozzle 220: combustion air intake
230: flame holding nozzle 240: diffuser device
250: premix fuel nozzle
Detailed Description
To solve the technical problem, an embodiment of the present invention provides an ultra-low emission combustor, including: a flame generating section that combusts the mixed fuel and air to generate a first flame; and a multistage air supply unit which is inserted into a part of the flame generating unit, supplies combustion gas or air to a second flame region in the combustion chamber, and supplies air discharged from a coanda outlet of the multistage air supply unit to the second flame region while forming a coanda flow path.
In an embodiment of the present invention, air of the coanda flow path may be prevented from being supplied to the first flame.
In an embodiment of the present invention, the first flame and the second flame may be generated in a completely separated state inside one of the combustion chambers.
In an embodiment of the present invention, the combustion gas may flow into a combustion gas flow inlet of the multistage air supply part, and the combustion gas is supplied to the first flame or the second flame again to perform combustion gas recirculation.
In an embodiment of the present invention, a front surface of the multistage air supply part may have a ring shape in cross section and surround a circumference of the flame generating part.
In an embodiment of the present invention, an inner surface of the multi-stage air supply part may have a shape in which the air discharged from the coanda discharge port is adsorbed to flow on the inner surface of the multi-stage air supply part to form a coanda flow path.
In an embodiment of the present invention, a plurality of the multistage air supply portions may be provided, and the plurality of the multistage air supply portions may have a shape that is spaced at a predetermined interval and surrounds the circumference of the flame generating portion in multiple stages.
In an embodiment of the present invention, the multistage air supplier may be provided with a plurality of multistage air suppliers.
In an embodiment of the present invention, an inner surface of the multi-stage air supplier may have a shape in which air discharged from the coanda discharge port is adsorbed on the inner surface of the multi-stage air supplier to flow to form a coanda flow path.
In an embodiment of the present invention, the multi-stage air supplier may be arranged in a shape surrounding the circumference of the flame generating part.
In an embodiment of the present invention, the multi-stage air supplier may be arranged in a shape surrounding the flame generating part in multiple layers.
In an embodiment of the present invention, the flame generating part may include: a fuel nozzle for supplying fuel; a combustion air inlet port for supplying air; a flame holding nozzle provided inside the fuel nozzle for performing a flame holding function; and a diffuser for injecting a mixed fuel in which the fuel and the air are mixed.
In an embodiment of the present invention, the flame generating portion may further include a premixed fuel nozzle for injecting fuel into the air flow from the combustion air inflow port.
In order to solve the technical problem, an embodiment of the present invention provides a combustion furnace to which the ultra-low emission burner of the present invention is applied.
To solve the technical problem, an embodiment of the present invention provides a boiler to which the ultra-low emission burner of the present invention is applied.
Detailed description of the preferred embodiments
The present invention is described below with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In addition, in order to clearly explain the present invention, portions of the drawings that are not related to the description are omitted, and like reference numerals are given to like portions throughout the specification.
Throughout the specification, when a part is referred to as being connected (connected, contacted, combined) with other parts, this includes not only the case of "directly connected" but also the case of "indirectly connected" with other parts interposed therebetween. Further, unless specifically stated to the contrary, when a portion is referred to as "including" a certain constituent element, it means that other constituent elements are further included, and other constituent elements are not excluded.
The terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless the context clearly dictates otherwise, expressions in the singular include expressions in the plural. It should be understood that the terms "comprises" or "comprising," or the like, in this specification, are used to specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof. It should be understood that the existence or additional possibility of one or more other features, numbers, steps, operations, constituent elements, components or combinations thereof is not excluded.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a sectional view of a burner-side surface according to an embodiment of the present invention, and fig. 2 is an enlarged sectional view of the burner-side surface according to the embodiment of the present invention (arrows a in fig. 1 and 2 show a coanda flow path, and arrows B in fig. 1 and 2 show a combustion gas recirculation path).
As shown in fig. 1 and 2, the ultra-low emission combustor of the present invention includes: a flame generating section 200 for generating a first flame 10 by combusting the mixed fuel and air; and a multi-stage air supply part 100 into which a part of the flame generating part 200 is inserted and which supplies combustion gas or air to the second flame region 21 in the combustion chamber 30.
At this time, the air discharged through the coanda outlet 101 of the multistage air supply unit 100 forms a coanda flow path as indicated by the arrow a in fig. 1 and 2, and is supplied to the second flame region 21.
The coanda flow path may be a flow path of air utilizing the coanda principle. The coanda principle refers to the principle that a gas jetted close to a surface has a tendency to adhere to the surface and flow.
The air discharged through the coanda discharge port 101 can be prevented from being supplied to the first flame 10.
When the coanda flow path is formed to flow air using the coanda principle described above, as indicated by the arrow a in fig. 1 and 2, the air in the coanda flow path can be directed to be supplied to the second flame in the lean condition without affecting the first flame in the rich condition.
Therefore, the first flame 10 and the second flame 20 can be generated in a completely separated state inside one combustion chamber 30.
The first flame 10 and the second flame 20 are completely separated and may perform the functions of the first flame 10 and the second flame 20, respectively, as described below.
In the first flame zone 11, combustion can be performed under an excess fuel condition. And, carbon monoxide (CO) can be generated at a high concentration.
And, the combustion gas may flow into the combustion gas inflow port 102 of the multistage air supply part 100, and the combustion gas is supplied to the first flame 10 or the second flame 20 again to perform combustion gas recirculation.
Specifically, the combustion gas generated from the first flame region 11 and the second flame region 21 is recirculated, and an effect of reducing the maximum temperature of the flame is induced. This effect serves to suppress the generation of harmful gases, i.e., nitrogen oxides, generated from the flame.
This combustion gas recirculation can be performed by applying a negative pressure that causes the ejector (injector) to operate. First, when air is discharged from the coanda outlet 101 according to the coanda principle, the air in the space between the flame generating portion 200 and the multistage air supply portion 100 will also flow by the flow of the air discharged from the coanda outlet 101, and the pressure of the space between the flame generating portion 200 and the multistage air supply portion 100 can be reduced. Thereafter, as indicated by the arrow B in fig. 1 and 2, the combustion gas can be sucked into the space between the flame generation unit 200 and the multi-stage air supply unit 100 through the combustion gas inlet port 102, and a combustion gas recirculation path is formed. It is possible to suppress the generation of nitrogen oxides and improve the efficiency of the combustor by the re-combustion based on the combustion gas recirculation path.
When the pressure in the space between the flame generating unit 200 and the multistage air supply unit 100 is reduced, the combustion gas sucked into the combustion gas inlet 102 is brought into contact with the air in the coanda flow path in a state where the flow rate is increased by the bernoulli principle in which the flow rate is inversely proportional to the pressure, and the flow of the air and the flow of the combustion gas in the coanda flow path can be strengthened by interaction.
In the second flame zone 21, combustion can be performed under excess air conditions. And, carbon monoxide (CO) and unburned fuel generated from the first flame region 11 are induced to be completely burned in the flame region. And, can pass through recirculationThe combustion gas of the ring forms a relatively low temperature flame, thereby inhibiting the generation of Thermal NOx (Thermal NO)X)。
Fig. 3 is a front sectional view of a burner according to an embodiment of the present invention. In particular, with respect to a cross-section through the dashed line a-a' of fig. 1 and perpendicular to the plane of the paper.
As shown in fig. 3, the multistage air supply part 100 may have a ring-shaped cross-section at its front surface and surround the circumference of the flame generating part 200.
When the multi-stage air supply 100 is formed as a single device, an integrated coanda flow path can be formed. Such a single multistage air supply portion 100 can perform control of the air inflow from the external air pump to the entire multistage air supply portion 100.
As shown in fig. 2, the inner surface of the multistage air supply part 100 has a shape in which the air discharged from the coanda discharge port 101 is adsorbed on the inner surface of the multistage air supply part 100 to flow to form a coanda flow path.
The inner surface of the multi-stage air supply part 100 may refer to a surface facing the inside of the flame generating part 200.
The details of the coanda flow path are the same as those described above.
The plurality of multistage air supply units 100 may be provided, and the plurality of multistage air supply units 100 may have a shape in which the periphery of the flame generating unit 200 is surrounded in multiple stages at predetermined intervals.
Although one multistage air supply part 100 is shown in fig. 3, a plurality of multistage air supply parts 100 may be provided. As a specific example, the flame generating unit may include a first multi-stage air supply unit surrounding the flame generating unit 200, a second multi-stage air supply unit surrounding the first multi-stage air supply unit at a predetermined interval from the first multi-stage air supply unit, and a third multi-stage air supply unit surrounding the second multi-stage air supply unit at a predetermined interval from the second multi-stage air supply unit.
The first, second, and third multistage air supply units may have the same shape and only different sizes. In terms of size, it may be that the third multistage air supply is larger than the second multistage air supply, and the second multistage air supply is larger than the first multistage air supply.
Fig. 4 is a front sectional view of a burner according to another embodiment of the present invention. In particular, it relates to a section through the dashed line a-a' of fig. 1 and perpendicular to the plane of the paper. It is about an embodiment different from the case of fig. 3 (the matters of fig. 4 (a) and fig. 4 (b) will be described below).
The multi-stage air supplier 100 may include a plurality of multi-stage air suppliers 110.
Also, the multi-stage air supplier 110 may be arranged in a shape surrounding the flame generating part 200.
As shown in fig. 4 (a), the cross-sectional shape of the front surface of the multistage air supplier 110 may be a rectangle.
Alternatively, as shown in fig. 4 (b), the front surface of the multistage air supplier 110 may be shaped as a portion of a circle.
When the multistage air supply part 100 is composed of a plurality of multistage air supply parts 110, diverse coanda flow paths can be formed. Each of the multi-stage air suppliers 110 may be individually connected with an external air pump, respectively, and the air supplied to each of the multi-stage air suppliers 110 may be individually controlled. Therefore, the second flame 20 can be stably formed by partially increasing the speed and the amount of air of the air flowing into the coanda flow path at the weakened portion of the second flame 20 in the second flame region 21. Accordingly, the speed and the amount of air flowing into the coanda flow path at the portion where the second flame 20 is excessively intensified can be partially reduced.
The multi-stage air supplier 110 may be arranged in a shape surrounding the circumference of the flame generating part 200 in multiple layers.
As shown in fig. 4 (a), a plurality of multi-stage air suppliers 110 may be arranged in a shape surrounding the flame generating part 200 to form a first multi-stage air supplier. Also, the plurality of multi-stage air suppliers 110 may be arranged in a shape surrounding the circumference of the first multi-stage air supplier to form the second multi-stage air supplier. The air of the coanda flow path can be comprehensively controlled by the differently arranged multi-stage air supplier 110.
As shown in fig. 2, the inner surface of the multi-stage air supplier 110 has a shape in which the air discharged from the coanda discharge port 101 is adsorbed on the inner surface of the multi-stage air supplier 100 to flow to form a coanda flow path.
At this time, the inner surface of the multi-stage air supplier 110 may refer to a surface facing the flame generating part 200.
The details of the coanda flow path are the same as those described above.
As shown in fig. 2, the flame generating part 200 may include: a fuel nozzle 210 for supplying fuel; a combustion air inlet 220 for supplying air; a flame holding nozzle 230 disposed inside the fuel nozzle 210 for performing a flame holding function; and a diffuser 240 for injecting a mixed fuel of fuel and air.
Also, the flame generating portion 200 may further include a premix fuel nozzle 250 for injecting fuel into the air flow from the combustion air inlet 220.
In fig. 2, an arrow marked at the combustion air inflow port 220 may refer to a direction in which air flows in from the outside. Also, the arrow marked on the fuel nozzle 210 may refer to a direction in which the fuel flows from the outside, in which case the fuel may be liquid fuel or gas fuel.
In fig. 2, the arrow marked on the flame holding nozzle 230 may be a direction in which fuel or compressed air flows. Also, a swirler as a flame holder may be provided at the flame holding nozzle 230 for the flame holding function. In this case, the swirler may be of the radial, axial or mixed flow type. A flame holding plate may be further provided at a portion of the flame holding nozzle 230.
The arrow labeled on the premix fuel nozzle 250 of FIG. 2 may be the discharge direction of the premix fuel. The premix fuel nozzle 250 is connected to the fuel nozzle 210, receives a supply of fuel from the fuel nozzle 210, and may discharge the fuel in a direction corresponding to a flow direction of air flowing in through the combustion air inflow port 220. Accordingly, the mixed gas of the premixed air and the fuel may be supplied through the diffuser 240 so as to generate the first flame.
The ultra-low emission burner of the present invention can be applied to a combustion furnace having a burner.
The ultra-low emission burner of the present invention can be applied to a boiler having a burner.
The foregoing description of the present invention is provided for illustration, and it will be understood by those skilled in the art that the present invention can be easily modified into other specific shapes without changing the technical idea or essential features of the present invention. It is therefore to be understood that the above described embodiments are illustrative in all respects, not restrictive. For example, each component described as a singular form can be implemented as a discrete form, and similarly, components described as discrete forms can be implemented as a combined form.
The scope of the present invention is defined by the appended claims, and all changes or modified shapes derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.
Claims (12)
1. An ultra-low emission combustor, comprising:
a flame generating section that combusts the mixed fuel and air to generate a first flame; and
a multi-stage air supply part inserted with a part of the flame generation part and supplying combustion gas and air to a second flame area in the combustion chamber,
air discharged from the coanda discharge ports of the multistage air supply portion forms a coanda flow path to be prevented from being supplied to the first flame region and supplied only to the second flame region,
generating the first flame and the second flame in a completely separated state inside one of the combustion chambers, and the first flame is burned in an over-fuel condition and the second flame is burned in a under-fuel condition,
the combustion gas flows into a combustion gas inlet of the multistage air supply section, and the combustion gas is supplied to the first flame or the second flame again to recirculate the combustion gas.
2. The ultra low emission combustor according to claim 1,
the multistage air supply part is annular in cross section of the front surface and surrounds the periphery of the flame generation part.
3. The ultra low emission burner of claim 2,
the inner surface of the multi-stage air supply part has a shape in which the air discharged from the coanda discharge port is adsorbed to flow on the inner surface of the multi-stage air supply part to form a coanda flow path.
4. The ultra low emission burner of claim 2,
the flame generating device is provided with a plurality of multi-stage air supply parts, and the multi-stage air supply parts have a shape which surrounds the periphery of the flame generating part in a plurality of layers at a specified interval.
5. The ultra low emission combustor according to claim 1,
the multistage air supply unit includes a plurality of multistage air supplies.
6. The ultra low emission combustor according to claim 5,
the inner surface of the multi-stage air supplier has a shape in which the air discharged from the coanda discharge port is adsorbed to the inner surface of the multi-stage air supplier to flow to form a coanda flow path.
7. The ultra low emission combustor according to claim 5,
the multi-stage air supplier is arranged in a shape surrounding the circumference of the flame generating part.
8. The ultra low emission combustor according to claim 6,
the multi-stage air supplier is arranged in a shape of surrounding the flame generating part in multiple layers.
9. The ultra low emission combustor according to claim 1,
the flame generation part includes:
a fuel nozzle for supplying fuel;
a combustion air inlet port for supplying air;
a flame holding nozzle provided inside the fuel nozzle for performing a flame holding function; and
and a diffuser for injecting a mixed fuel in which the fuel and the air are mixed.
10. The ultra low emission burner of claim 9,
the flame generating portion further includes a premixed fuel nozzle for injecting fuel into an air flow from the combustion air inflow port.
11. A combustion furnace having a burner, characterized in that,
use of an ultra low emission burner according to any of claims 1 to 9.
12. A boiler having a burner, characterized in that,
use of an ultra low emission burner according to any of claims 1 to 9.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0042883 | 2016-04-07 | ||
| KR1020160042883A KR101738946B1 (en) | 2016-04-07 | 2016-04-07 | Ultra low emission Burner |
| PCT/KR2016/006918 WO2017175918A1 (en) | 2016-04-07 | 2016-06-28 | Ultra-low emission combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109073225A CN109073225A (en) | 2018-12-21 |
| CN109073225B true CN109073225B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680085439.6A Active CN109073225B (en) | 2016-04-07 | 2016-06-28 | Ultra-low emission combustor |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101738946B1 (en) |
| CN (1) | CN109073225B (en) |
| WO (1) | WO2017175918A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102014828B1 (en) | 2017-07-31 | 2019-08-27 | 한국에너지기술연구원 | Partially Premixed Annular Rich-Lean Jet Oxygen-enriched Burner |
| WO2020050689A1 (en) * | 2018-09-06 | 2020-03-12 | 페리지항공우주 주식회사 | Propulsion device for liquid propellant rocket engine |
| KR102507448B1 (en) * | 2021-07-02 | 2023-03-07 | 인천대학교 산학협력단 | Multi-stage liquid fuel flameless combustion device |
| KR102437328B1 (en) | 2021-12-22 | 2022-08-30 | 한국에너지기술연구원 | Partially Premixed Annular Rich-Lean Jet Oxygen-enriched Burner with forrced internal flue-gas recirculation |
| KR102437325B1 (en) | 2021-12-23 | 2022-08-30 | 한국에너지기술연구원 | Gas combustion using fuel concentration gradient |
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| KR101583509B1 (en) * | 2014-10-23 | 2016-01-13 | 한국생산기술연구원 | A Burner for generating reduced nitrogen oxide |
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| Publication number | Publication date |
|---|---|
| CN109073225A (en) | 2018-12-21 |
| KR101738946B1 (en) | 2017-05-23 |
| WO2017175918A1 (en) | 2017-10-12 |
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