KR100590845B1 - Oxyfuel burner with flue gas recirculation - Google Patents

Abstract

The present invention relates to an exhaust gas recirculating oxygen combustor, comprising: a fuel inlet for supplying fuel; coupled to one end of the fuel inlet, and the other end penetrated to the inside of the combustion chamber, the fuel is injected through the fuel inlet to the vicinity of the flame zone inside the combustion chamber; A fuel nozzle injected to the first chamber, the first chamber forming a first predetermined space inside the combustion chamber to supply an oxidant to the flame zone inside the combustion chamber; and adjacent to and isolated from the first chamber, the oxidant and exhaust gas to the flame zone inside the combustion chamber. A second oxidant supply pipe coupled to the first chamber and supplied with an oxidant from the outside; a first oxidant nozzle for injecting an oxidant stored in the first chamber into the combustion chamber; A second oxidant supply pipe for supplying the exhaust gas to the second chamber; Opening the oxidant and the exhaust gas stored in the second chamber Second oxidant nozzle for injecting into the inner chamber; ignition device for igniting the fuel injected through the fuel nozzle; combined with one surface of the second chamber engaging plate that supports the combustor; And a qualifier coupled vertically with the fuel nozzle on one surface of the coupling plate in the combustion chamber to reduce the temperature rise of the combustor caused by the flame inside the combustion chamber, and to stabilize the flame formed inside the combustion chamber. It includes.

Oxygen Combustor, Exhaust Gas, Recirculation, Qual, Refractory

Description

Oxyfuel burner with flue gas recirculation             

1 is a longitudinal cross-sectional view of a conventional general oxygen burner.

Figure 2 is a longitudinal sectional view of the exhaust gas recirculation oxygen burner according to an embodiment of the present invention.

Figure 3 is a longitudinal sectional view of the exhaust gas recirculation oxygen burner according to another embodiment of the present invention.

4 is a conceptual diagram of an exhaust gas recirculation oxygen burner according to an embodiment of the present invention.

5 is a change in flame temperature with respect to the recycle ratio of the exhaust gas according to an embodiment of the present invention.

6 is a change in generation amount of nitrogen oxide with respect to the recycle ratio of the exhaust gas according to an embodiment of the present invention.

       <Description of Symbols for Main Parts of Drawings>

11, 11 ': Fuel inlet 12, 12': Fuel nozzle

13, 13 ': first chamber 14, 14': second chamber

15, 15 ': first oxidant supply pipe 16, 16': first oxidant nozzle

17, 17 ': 2nd oxidant supply pipe 18, 18': 2nd oxidant nozzle

19, 19 ': Combined plate 20, 20': Ignition device

21: Qual 21 ': refractory

22, 22 ': first connector 23, 23': second connector

The present invention relates to an exhaust gas recycle oxygen burner, and more particularly, to reduce the temperature of the flame through recycling the exhaust gas of the oxygen burner to reduce the generation of nitrogen oxides (NOx), and also supplied to the oxidant in this process The present invention relates to an exhaust gas recirculation oxy-combustor which separately supplies a portion of oxygen and exhaust gas into the combustion chamber to ensure flame stability.

As shown in FIG. 1, the conventional oxygen burner having about 10 times the propagation speed of the flame generated compared to the air burner using air as the oxidant is supplied to the fuel through the fuel nozzle 2 of the combustor. Supplied with oxygen, which is an oxidant through the oxidant nozzle 4, to form and burn a diffusion flame between the fuel nozzle and the oxidant nozzle, wherein the oxidant is a refractory for stabilizing the flame and preventing direct combustion of the combustor from the flame. It includes a quall (6) installed on the nozzle, and the igniter (5) and a flame detector for detecting the presence or absence of a flame.

In the conventional oxygen burner, when oxygen is used as the oxidant, the flame temperature is very high, and thus, the fuel nozzle 1, the oxidant nozzle 3, and the qualifier 6 in the combustion chamber are damaged.

In addition, since the conventional oxygen burner focuses only on the increase in thermal efficiency, the flame temperature is rapidly increased, so that a large amount of nitrogen oxides (NOx) are absorbed by a small amount of nitrogen impurity contained in oxygen used as an oxidant or an infiltration of external air. There was also a problem that occurred.

An object of the present invention is to solve the above problems, by reducing the temperature of the flame through the exhaust gas recirculation to prevent the destruction of fuel nozzles, oxidant nozzles and qualifiers in the combustion chamber and to reduce nitrogen oxides exhaust gas recirculation oxygen burner In providing.

In addition, another object of the present invention is to provide an exhaust gas recirculation oxygen burner capable of supplying a part of the oxygen and the exhaust gas supplied to the oxidant separately into the combustion chamber to realize the stability of the flame.

The present invention for achieving the above object, relates to an exhaust gas recirculation oxygen burner, the fuel inlet 11 is connected to a separate connection pipe for supplying fuel; A fuel nozzle 12 which is coupled to one end of the fuel inlet 11 and the other end penetrates into the combustion chamber, and injects fuel to the vicinity of the flame region inside the combustion chamber through the fuel injection port 11; A first chamber 13 forming a first predetermined space to store the oxidant; A second chamber (14) adjacent and isolated from the first chamber (13) for storing oxidant and exhaust gas; A first oxidant supply pipe 15 coupled to a first predetermined position of the first chamber to receive an oxidant from the outside; Adjacent to and isolated from the fuel nozzle 12, protrudes through the length of the fuel nozzle 12 penetrating into the combustion chamber, and formed parallel to the fuel nozzle 12 and stored in the first chamber 13 A first oxidant nozzle 16 for injecting an oxidant into the combustion chamber; A second oxidant supply pipe (17) coupled to a second predetermined position of the second chamber (14) to supply oxidant and exhaust gas generated inside the combustion chamber to the second chamber (14) from the outside; Adjacent to the first oxidant nozzle 16, forming a third predetermined space, protruding as long as the penetration length of the fuel nozzle 12 penetrating into the combustion chamber, and being formed parallel to the fuel nozzle 12 A second oxidant nozzle 18 for injecting oxidant and exhaust gas stored in the second chamber 14 into the combustion chamber; A coupling plate 19 coupled to one surface of the second chamber 14 and fixed to a third predetermined position outside the combustion chamber to support the combustor; An ignition device 20 having an angle θ-1 with the fuel nozzle outside the combustion chamber, penetrating the interior of the combustion chamber, and igniting fuel injected through the fuel nozzle; And a vertical coupling with the fuel nozzle 12 on one surface of the coupling plate 19 in the combustion chamber to reduce the temperature rise of the combustor caused by the flame in the combustion chamber, and to stabilize the flame formed inside the combustion chamber. (21); It characterized in that it comprises a.

Preferably, the first connector 22 to connect the measuring device capable of measuring the temperature or pressure at the fourth predetermined position of the first chamber (13); And a second connector 23 for connecting a measuring device capable of measuring temperature or pressure at a fifth predetermined position of the second chamber 14; Characterized in that it further comprises.

Preferably, the first oxidant supply pipe 15 is supplied with a constant oxidant, and the second oxidant supply pipe 17 is supplied with an oxidant and a predetermined amount of exhaust gas generated inside the combustion chamber.

On the other hand, the present invention relates to an exhaust gas recirculation oxygen burner, the fuel inlet (11 ') connected to a separate connection pipe for supplying fuel; A fuel nozzle 12 'which is coupled to one end of the fuel injection hole 11' and injects fuel to the vicinity of the flame zone inside the combustion chamber through the fuel injection hole 11 'while the other end penetrates into the combustion chamber. ; A first chamber 13 'that forms a first predetermined space to store the oxidant; A second chamber (14 ') adjacent and isolated from said first chamber (13') for storing oxidant and exhaust gas; A first oxidant supply pipe 15 'coupled to a first predetermined position of the first chamber to receive an oxidant from the outside; Adjacent to and isolated from the fuel nozzle 12 ', protruding by the penetrating length of the fuel nozzle 12' penetrating into the combustion chamber, and being formed parallel to the fuel nozzle 12 'and forming the first chamber 13; A first oxidant nozzle 16 'for injecting the oxidant stored in the') into the combustion chamber; A second oxidant supply pipe (17 ') coupled to a second predetermined position of the second chamber (14') for supplying oxidant and exhaust gas generated inside the combustion chamber from the outside to the second chamber (14 '); Protruded by the penetration length of the fuel nozzle 12 'adjacent to and isolated from the first oxidant nozzle 16' and penetrating into the combustion chamber, and formed in parallel with the fuel nozzle 12 'to form a second chamber ( A second oxidant nozzle 18 'for injecting oxidant and exhaust gas stored in the combustion chamber 14' into the combustion chamber; A coupling plate 19 'coupled to one surface of the second chamber 14' to be fixed at a third predetermined position on an outer surface of the combustion chamber to support the combustor; The fuel nozzle 12 ', the first oxidant nozzle 16' and the second oxidant nozzle 18 'which penetrate the inside of the combustion chamber and have an angle Θ-3 with the fuel nozzle outside the combustion chamber. It is formed so as not to exceed the length of, the ignition device 20 'for igniting the fuel injected through the fuel nozzle 12'; And the fuel nozzle 12 ', the first oxidant nozzle 16' and the second oxidant nozzle 18 'are vertically coupled to one surface of the coupling plate 19' in the combustion chamber by the flame inside the combustion chamber. Refractories 21 'which reduce the temperature rise of the combustor caused and stabilize the flame formed inside the combustion chamber; Characterized in that it comprises a.

Preferably, the first connector 22 'to connect the measuring device capable of measuring the temperature or pressure at the fourth predetermined position of the first chamber (13'); And a second connector (23 ') for connecting a measuring device capable of measuring temperature or pressure at a fifth predetermined position of the second chamber (14'). Characterized in that it further comprises.

Also preferably, the refractory 21 'is formed so as not to exceed the lengths of the fuel nozzle 12', the first oxidant nozzle 16 'and the second oxidant nozzle 18' which protrude through the inside of the combustion chamber. It is characterized by.

Preferably, the first oxidant supply pipe 15 'is supplied with a constant oxidant, and the second oxidant supply pipe 17' is supplied with an oxidant and a predetermined amount of exhaust gas generated inside the combustion chamber.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

Referring to Figure 2 with respect to the exhaust gas recirculation oxygen burner according to an embodiment of the present invention.

2 is a longitudinal sectional view of an exhaust gas recirculating oxygen burner according to an embodiment of the present invention.

As shown in FIG. 2, the exhaust gas recirculating oxygen combustor according to the exemplary embodiment of the present invention includes a fuel inlet 11, a fuel nozzle 12, a first chamber 13, a second chamber 14, and a first chamber. The first oxidant supply pipe 15, the first oxidant nozzle 16, the second oxidant supply pipe 17, the second oxidant nozzle 18, the coupling plate 19, the ignition device 20, the qualifier 21, the first Connector 22 and second connector 23.

The fuel inlet 11 is connected to a separate connection pipe to perform a function of receiving fuel.

In addition, the fuel nozzle 12 is coupled to one end of the fuel inlet 11, and the other end is injected into the combustion chamber to the vicinity of the flame zone in the combustion chamber in the state penetrated to the interior of the combustion chamber 11 To perform the function.

In addition, the first chamber 13 forms a first predetermined space in the combustor to store a predetermined amount of the oxidant, thereby performing a function of smoothly supplying the oxidant to the flame region inside the combustion chamber with the first predetermined pressure.

In addition, the second chamber 14 is adjacent to the first chamber 13, and in a state of being separated from each other by storing and mixing a predetermined amount of the oxidant and the exhaust gas, to the flame zone inside the combustion chamber at a second predetermined pressure. It performs a function to ensure a smooth supply.

In addition, the first oxidant supply pipe 15 is coupled to a first predetermined position of the first chamber 13 to perform a function of receiving an oxidant from the outside.

In addition, the first oxidant nozzle 16 is adjacent to the fuel nozzle 12, and protrudes by the penetrating length of the fuel nozzle 12 to form a second predetermined space and to be isolated to penetrate into the combustion chamber, and the fuel nozzle It is formed in parallel with (12) to perform the function of injecting the oxidant stored in the first chamber 13 into the combustion chamber.

In addition, the second oxidant supply pipe 17 is coupled to a second predetermined position of the second chamber 14 to supply a predetermined amount of exhaust gas generated inside the combustion chamber from the outside to the second chamber 14. Do this.

Further, the second oxidant nozzle 18 is adjacent to the first oxidant nozzle 16, forms a third predetermined space, protrudes by the length of penetration of the fuel nozzle penetrating into the combustion chamber, and the fuel nozzle ( It is formed in parallel to 12 to inject the oxidant and the exhaust gas stored in the second chamber 14 into the combustion chamber.

In the present embodiment, the first oxidant nozzle 16 and the second oxidant nozzle 18 may affect the injection speed of the oxidant and the exhaust gas injected into the combustion chamber according to the diameter ratio of the nozzles respectively formed. Self-explanatory

In addition, the coupling plate 19 is coupled to one surface of the second chamber 14 is fixed at the third predetermined position of the outer surface of the combustion chamber to perform a function of supporting the combustor.

In addition, the ignition device 20 has a predetermined engagement angle Θ-1 formed when the center line of the fuel nozzle 12 and the center line of the ignition device 20 are extended outside the combustion chamber, and the coupling plate 19 and the combustion chamber Through the inside, it performs a function of igniting the fuel injected through the fuel nozzle 12.

In addition, the qualifier 21 is symmetrically coupled to the qualifier 21 through which the ignition device penetrates about the fuel nozzle 12 by vertically coupling the fuel nozzle 12 to one surface of the coupling plate 19 in the combustion chamber. It is formed with an included angle (Θ-2) between the inclined plane and the parallel line of the second oxidant nozzle protruding through the combustion chamber, thereby reducing the temperature rise of the combustor caused by the flame inside the combustion chamber, and is formed inside the combustion chamber It serves to stabilize the flame.

Wherein the fuel nozzle 12 is coupled through the first chamber, the second chamber and the coupling plate, the first oxidant nozzle 16 is coupled through the second chamber and the coupling plate, and the second The oxidant nozzle 18 is coupled through the coupling plate.

In addition, the first connector 22 performs a function of connecting a measuring device capable of measuring temperature or pressure to a fourth predetermined position of the first chamber 13.

In addition, the second connector 23 performs a function of connecting a measuring device capable of measuring temperature or pressure to a fifth predetermined position of the second chamber 14.

The exhaust gas recirculating oxygen burner having the above-described configuration receives a constant oxidant through the first oxidant supply pipe 15 and supplies a predetermined amount of exhaust gas generated inside the combustion chamber through the second oxidant supply pipe 17. Receiving will stabilize the flame.

In addition, by recycling the predetermined amount of exhaust gas, the temperature of the flame formed in the combustion chamber is lowered, and the amount of nitrogen oxide produced is reduced.

And by adjusting the amount of exhaust gas recycled, it is possible to control the temperature of the flame formed in the combustion chamber.

In the present embodiment, the included angle Θ-2 changes the shape of the flame according to its size, which affects the stabilization of the flame, and thus the specific size is not specified.

In the present embodiment, the volume formed by the first chamber 13 and the second chamber 14 in the combustor is equal to the amount of the oxidant supplied through the first oxidant supply pipe 15 and the second oxidant supply pipe 17. Obviously, it should be adjusted in consideration of the amount of oxidant injected through the first oxidant nozzle 16 and the second oxidant nozzle 18.

So far, the exhaust gas recirculating oxygen burner has been described with reference to FIG. 2. Hereinafter, the exhaust gas recirculating oxygen burner according to another embodiment of the present invention will be described with reference to FIG. 3.

Figure 3 is a longitudinal sectional view of the exhaust gas recirculation oxygen burner according to another embodiment of the present invention.

As shown in FIG. 3, the exhaust gas recirculating oxygen combustor according to another embodiment of the present invention includes a fuel inlet 11 ′, a fuel nozzle 12 ′, a first chamber 13 ′, and a second chamber ( 14 '), the first oxidant supply pipe 15', the first oxidant nozzle 16 ', the second oxidant supply pipe 17', the second oxidant nozzle 18 ', the coupling plate 19', the igniter ( 20 '), refractory 21', first connector 22 'and second connector 23'.

The fuel inlet 11 ', the fuel nozzle 12', the first chamber 13 ', the second chamber 14', the first oxidant supply pipe 15 ', the first oxidant nozzle 16', The oxidant supply pipe 17 ', the second oxidant nozzle 18', the coupling plate 19 ', the ignition device 20', the first connector 22 'and the second connector 23' are described above. The fuel inlet 11, the fuel nozzle 12, the first chamber 13, the second chamber 14, the first oxidant supply pipe 15, the first oxidant nozzle 16, according to an embodiment of the present invention, Since the same function as the second oxidant supply pipe 17, the second oxidant nozzle 18, the coupling plate 19, the ignition device 20, the first connector 22 and the second connector 23 is detailed The description will be omitted, and the ignition device 20 'and the refractory 21' having different features from the embodiment of the present invention will be described below.

The ignition device 20 'has an angle Θ-3 with the fuel nozzle 12' outside the combustion chamber and penetrates the interior of the combustion chamber, but protrudes through the interior of the combustor. It does not exceed the length of the oxidant nozzle 16 'and the second oxidant nozzle 18'.

The refractory 21 'is vertically coupled to the fuel nozzle 12', the first oxidant nozzle 16 'and the second oxidant nozzle 18' on one surface of the coupling plate 19 'in the combustion chamber. Of the combustor caused by the flame inside the combustion chamber by being formed so as not to exceed the length of the fuel nozzle 12 ', the first oxidant nozzle 16' and the second oxidant nozzle 18 'protruding through the combustion chamber. It serves to prevent damage to the combustor due to temperature rise.

As shown in FIG. 3, the ignition device 20 ′ penetrates the refractory 21 ′.

Exhaust gas recirculation oxygen burner according to another embodiment of the present invention having the above-described configuration is produced by the flame by using the refractory 21 'instead of the quall 21 for stabilizing the flame formed in the combustion chamber The exhaust gas can be smoothly circulated inside the combustion chamber without disturbing the quall 21.

Therefore, the oxidant is supplied through the first oxidant supply pipe 15 ', the oxidant and a predetermined amount of exhaust gas generated inside the combustion chamber are supplied through the second oxidant supply pipe 17' and generated by the flame. By circulating the exhaust gas to be smoothly inside the combustion chamber without disturbing the quall 21, the flame is stabilized.

As described above, the exhaust gas recirculating oxygen burner has been described with reference to FIGS. 2 and 3, and the technical spirit of the present invention will be described in detail with reference to FIGS. 4 and 6.

4 is a conceptual diagram of the exhaust gas recirculation oxygen burner according to an embodiment of the present invention, Figure 5 is a change in flame temperature with respect to the recycle ratio of the exhaust gas according to an embodiment of the present invention, Figure 6 is a present invention The change in the amount of nitrogen oxide generated for the recycle ratio of the exhaust gas according to an embodiment of the.

As shown in FIG. 4, when the fuel and the oxidant are ignited through the ignition apparatuses 20 and 20 'in the combustion chamber to form a flame, an exhaust gas containing a predetermined amount of carbon dioxide and water (water vapor) inside the combustion chamber is generated. Is generated. In this case, when a predetermined amount of exhaust gas is supplied together with the oxidant supplied into the combustion chamber through the second oxidant supply pipes 17 and 17 ', the temperature of the flame formed in the combustion chamber may be lowered, and the nitrogen oxide generated in the combustion chamber may be reduced. The amount of can be reduced.

For reference, the nitrogen oxide is produced by a small amount of nitrogen contained in the oxidizing agent is oxidized in a high temperature environment to generate a large amount of temperature, that is, the amount of nitrogen oxide generated as the temperature increases due to the flame inside the combustion chamber. It will increase exponentially.

On the other hand, if the oxidant supplied through the first oxidant nozzles 16 and 16 'and the oxidant and the exhaust gas recycled through the second oxidant nozzles 18 and 18' are not separated, a flame is formed inside the combustion chamber. This unstable or the flame is extinguished, resulting in a limit on the amount of recycle of the exhaust gas through the second oxidant nozzles 18, 18 '.

And, by adjusting the amount of exhaust gas recycled through the second oxidant supply pipe (17, 17 '), it is possible to control the temperature of the flame as shown in Figure 5, nitrogen as shown in Figure 6 The amount of oxide generated can be controlled.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited to the drawings.

According to the present invention as described above, by reducing the temperature of the flame through the exhaust gas recirculation, it is possible to prevent the damage of the fuel nozzle, the oxidant nozzle and the quality inside the combustion chamber, there is an effect that can reduce the generated nitrogen oxides. .

And according to the present invention, by supplying a part of the oxidant and the exhaust gas in the combustion chamber separately there is an effect that can implement the stability of the flame.

Claims (7)

In the exhaust gas recirculation oxygen burner, A fuel inlet 11 connected to a separate connector to receive fuel; A fuel nozzle 12 coupled to one end of the fuel injection hole 11 and injecting fuel to the vicinity of the flame region inside the combustion chamber through the fuel injection hole 11 while the other end penetrates into the combustion chamber; A first chamber 13 forming a first predetermined space to store the oxidant; A second chamber (14) adjacent and isolated from the first chamber (13) for storing oxidant and exhaust gas; A first oxidant supply pipe 15 coupled to a first predetermined position of the first chamber to receive an oxidant from the outside; Adjacent to and isolated from the fuel nozzle 12, protrudes through the length of the fuel nozzle 12 penetrating into the combustion chamber, and formed parallel to the fuel nozzle 12 and stored in the first chamber 13 A first oxidant nozzle 16 for injecting an oxidant into the combustion chamber; A second oxidant supply pipe (17) coupled to a second predetermined position of the second chamber (14) to supply oxidant and exhaust gas generated inside the combustion chamber to the second chamber (14) from the outside; Adjacent to the first oxidant nozzle 16, forming a third predetermined space, protruding as long as the penetration length of the fuel nozzle 12 penetrating into the combustion chamber, and being formed parallel to the fuel nozzle 12 A second oxidant nozzle 18 for injecting oxidant and exhaust gas stored in the second chamber 14 into the combustion chamber; A coupling plate 19 coupled to one surface of the second chamber 14 and fixed to a third predetermined position outside the combustion chamber to support the combustor; An ignition device 20 having an angle θ-1 with the fuel nozzle outside the combustion chamber, penetrating the interior of the combustion chamber, and igniting fuel injected through the fuel nozzle; And Combining the fuel nozzle 12 perpendicularly to one surface of the coupling plate 19 in the combustion chamber to reduce the temperature rise of the combustor caused by the flame inside the combustion chamber, and to stabilize the flame formed inside the combustion chamber ( 21); Exhaust gas recirculation oxygen burner comprising a. The method of claim 1, A first connector (22) for connecting a measuring device capable of measuring temperature or pressure at a fourth predetermined position of the first chamber (13); And A second connector 23 for connecting a measuring device capable of measuring temperature or pressure at a fifth predetermined position of the second chamber 14; Exhaust gas recirculation oxygen burner, characterized in that it further comprises. The method of claim 1, A constant oxidant is supplied to the first oxidant supply pipe (15), and a predetermined amount of exhaust gas generated inside the combustion chamber is supplied to the second oxidant supply pipe (17). In the exhaust gas recirculation oxygen burner, A fuel inlet 11 ′ connected to a separate connector to receive fuel; A fuel nozzle 12 'which is coupled to one end of the fuel injection hole 11' and injects fuel to the vicinity of the flame zone inside the combustion chamber through the fuel injection hole 11 'while the other end penetrates into the combustion chamber. ; A first chamber 13 'that forms a first predetermined space to store the oxidant; A second chamber (14 ') adjacent and isolated from said first chamber (13') for storing oxidant and exhaust gas; A first oxidant supply pipe 15 'coupled to a first predetermined position of the first chamber to receive an oxidant from the outside; Adjacent to and isolated from the fuel nozzle 12 ', protruding by the penetrating length of the fuel nozzle 12' penetrating into the combustion chamber, and being formed parallel to the fuel nozzle 12 'and forming the first chamber 13; A first oxidant nozzle 16 'for injecting the oxidant stored in the') into the combustion chamber; A second oxidant supply pipe (17 ') coupled to a second predetermined position of the second chamber (14') for supplying oxidant and exhaust gas generated inside the combustion chamber from the outside to the second chamber (14 '); Protruded by the penetration length of the fuel nozzle 12 'adjacent to and isolated from the first oxidant nozzle 16' and penetrating into the combustion chamber, and formed in parallel with the fuel nozzle 12 'to form a second chamber ( A second oxidant nozzle 18 'for injecting oxidant and exhaust gas stored in the combustion chamber 14' into the combustion chamber; A coupling plate 19 'coupled to one surface of the second chamber 14' to be fixed at a third predetermined position on an outer surface of the combustion chamber to support the combustor; The fuel nozzle 12 ', the first oxidant nozzle 16' and the second oxidant nozzle 18 'which penetrate the inside of the combustion chamber and have an angle Θ-3 with the fuel nozzle outside the combustion chamber. It is formed so as not to exceed the length of, the ignition device 20 'for igniting the fuel injected through the fuel nozzle 12'; And Inside the combustion chamber, the fuel nozzle 12 ', the first oxidant nozzle 16' and the second oxidant nozzle 18 'are vertically coupled to one surface of the coupling plate 19' and are caused by the flame inside the combustion chamber. Refractories 21 'for reducing the temperature rise of the combustor to be stabilized, and to stabilize the flame formed in the combustion chamber; Exhaust gas recirculation oxygen burner comprising a. The method of claim 4, wherein A first connector (22 ') for connecting a measuring device capable of measuring temperature or pressure at a fourth predetermined position of the first chamber (13'); And A second connector (23 ') for connecting a measuring device capable of measuring temperature or pressure at a fifth predetermined position of the second chamber (14'); Exhaust gas recirculation oxygen burner, characterized in that it further comprises. The method of claim 4, wherein The refractory 21 'is formed so as not to exceed the lengths of the fuel nozzle 12', the first oxidant nozzle 16 'and the second oxidant nozzle 18' which protrude through the inside of the combustion chamber. Exhaust gas recirculation oxygen burner. The method of claim 4, wherein A constant oxidant is supplied to the first oxidant supply pipe (15 '), and a predetermined amount of exhaust gas generated inside the combustion chamber is supplied to the second oxidant supply pipe (17').

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