KR102402336B1 - Burner apparatus and ship having the same - Google Patents

Abstract

An embodiment of the present invention relates to a burner device, wherein the burner device for raising the temperature of exhaust gas includes a main body through which exhaust gas flows and a hollow inside, a sub body disposed inside the main body, and a length of the sub body and a burner disposed in a direction crossing the direction to form a flame by injecting fuel into the sub-body, and a first pipe for guiding the supply of combustion air to the sub-body.

Description

Burner device and ship including same {BURNER APPARATUS AND SHIP HAVING THE SAME}

An embodiment of the present invention relates to a burner device, and more particularly, to a burner device capable of improving efficiency by achieving stable combustion.

In general, a burner device uses thermal energy of a flame generated by burning fuel to increase the temperature of another object. Specifically, the conventional burner device for raising the temperature of the exhaust gas was utilized to raise the temperature of the exhaust gas using liquid fuel.

In the case of a burner device for raising the temperature of exhaust gas, it is important to install it so as not to obstruct the flow of exhaust gas according to its installation location.

When the conventional burner device is installed on the exhaust passage, there is a problem in that the internal pressure of the exhaust passage is increased, thereby adversely affecting the overall exhaust system and engine performance. In addition, when a burner device is installed on a ship, there is a problem in that a separate device must be provided to secure an installation space thereof and to be coupled to a flow path coupled thereto.

In addition, when changing the fuel of the conventional burner device using liquid fuel, the use of the burner device is impossible, so it is necessary to change its internal configuration and its installation location.

Accordingly, there is a need for a burner device capable of maintaining a stable flame even when gaseous fuel is used and compactly installed.

1) Cited Invention 1: Korean Patent Publication No. 10-2011-0037231 (2011.04.13) 2) Cited Invention 2: Korean Patent Publication No. 10-2012-0096734 (2012.08.31) 3) Cited Invention 3: Japanese Patent Publication No. 6637905 (2020.01.29) 4) Cited Invention 4: Japanese Patent Publication No. 2015-507168 (2015.03.05) 5) Cited Invention 5: International Publication No. WO2019/058563 (2019.03.28)

An embodiment of the present invention provides a burner device capable of raising the temperature of exhaust gas by forming a stable flame.

According to an embodiment of the present invention, the burner device for increasing the temperature of exhaust gas includes a main body in which exhaust gas is introduced and a hollow inside, a sub body disposed inside the main body, and a longitudinal direction of the sub body intersecting the burner device. a burner disposed in the direction to inject fuel into the sub-body to form a flame, and a first pipe for guiding the supply of combustion air to the sub-body.

In addition, the above-described burner device includes a pilot burner spaced apart from the burner in the sub-body, a main supply pipe for supplying gaseous fuel to the burner, and a pilot burner by connecting the main supply pipe and the pilot burner. It may further include a sub-supply pipe for supplying gaseous fuel.

In addition, the above-described burner device may further include an air supply unit for supplying air to the gaseous fuel supplied from the main supply pipe.

In addition, one side of the first pipe may be supported by the sub-body, and one end of the first pipe in the sub-body may be inclined toward the front of the burner.

In addition, the above-described burner device may further include a perforated plate disposed in front of the burner to equalize the flow of exhaust gas moving to the burner.

In addition, a plurality of through holes are formed in the perforated plate, and in one region of the perforated plate that is relatively far from the first pipe, the plurality of through holes are formed more than other regions of the perforated plate adjacent to the first pipe. can

In addition, the above-described burner device may further include a flame detector installed on the first pipe to check the state of the flame generated by the burner.

In addition, the above-described burner device may further include a plurality of nozzles disposed on the burner spaced apart from each other and disposed at an angle within a range of 10 degrees to 30 degrees from an outer circumferential surface of the burner.

Alternatively, in the burner device according to another embodiment of the present invention, a main body in which exhaust gas is introduced and a hollow interior is formed, a sub-body disposed inside the main body, and a longitudinal direction of the sub-body are disposed in a direction crossing the burner device. A burner that forms a flame by injecting gaseous fuel into the sub-body, a first pipe for guiding the supply of combustion air to the sub-body, and a combustion for supplying combustion air to the first pipe An air supply member, a main supply pipe for supplying gaseous fuel to the burner, and at least a portion disposed inside the first pipe, compressed air for supplying compressed air to premix gaseous fuel supplied to the burner A supply pipe, and a compressed air supply member for supplying compressed air to the compressed air supply pipe.

In addition, in the burner device according to another embodiment of the present invention, the compressed air supply member for combustion and the compressed air according to the information detected by the compressed air detection member for detecting the compressed air amount of the compressed air supply member and the compressed air detection member It may further include a control unit for selectively operating the supply member.

Alternatively, in the burner device according to another embodiment of the present invention, the combustion air supply member and the compressed air supply member according to the information detected by the differential pressure detection member and the compressed air detection member for detecting the differential pressure of the exhaust gas passing through the main body. It may further include a control unit for selectively operating the air supply member.

Alternatively, the burner device according to another embodiment of the present invention includes a main body detachably coupled to an exhaust passage through which exhaust gas passes and having a hollow inside, a sub body disposed inside the main body, and the sub A burner disposed in a direction crossing the longitudinal direction of the body to inject fuel into the sub-body to form a flame, a pilot burner spaced apart from the burner in the sub-body, and gaseous fuel with the burner A main supply pipe for supplying, a sub supply pipe for supplying gaseous fuel to the pilot burner by connecting the main supply pipe and the pilot burner, and an air supply unit for supplying air to the gaseous fuel supplied from the main supply pipe do.

Alternatively, the vessel in which the exhaust gas post-processing device for post-processing exhaust gas discharged by the power generated by the engine according to an embodiment of the present invention is installed includes a main body having a hollow interior, and a main body disposed inside the main body. A sub-body, a burner disposed in a direction crossing the longitudinal direction of the sub-body to inject gaseous fuel into the sub-body to form a flame, and a combustion air supply for supplying combustion air to the sub-body A burner device including a member, and a compressed air supply pipe for premixing the gaseous fuel supplied to the burner to increase the temperature of at least a part of exhaust gas, and the engine, the exhaust gas aftertreatment device, and the compressed air supply It includes a compressed air supply member for supplying compressed air to any one or more of the pipes.

According to embodiments of the present invention, the burner device can form a stable flame. In addition, the burner device can be installed compactly on the exhaust passage without increasing the internal differential pressure.

1 shows a burner device installed on an exhaust passage according to an embodiment of the present invention.
Figure 2 shows the perforated plate of Figure 1;
3 shows a nozzle installed in the burner of FIG. 1 .
4 shows a burner installed on a ship.

Hereinafter, with reference to the accompanying drawings, the embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

It is noted that the drawings are schematic and not drawn to scale. Relative dimensions and proportions of parts in the drawings are shown exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. And the same reference numerals are used to indicate like features to the same structural element or part appearing in two or more drawings.

The embodiment of the present invention specifically represents an ideal embodiment of the present invention. As a result, various modifications of the diagram are expected. Accordingly, the embodiment is not limited to a specific shape of the illustrated area, and includes, for example, a shape modification by manufacturing.

Hereinafter, a burner device 101 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 .

The burner device 101 raises the temperature of exhaust gas. The burner device 101 may increase the temperature of at least a portion of exhaust gas generated when fuel supplied to the engine is burned for power generation.

As shown in FIG. 1 , the burner device 101 according to an embodiment of the present invention may include a main body 100 , a sub-body 200 , and a burner 300 .

The main body 100 is hollow inside. Exhaust gas is introduced into the hollow main body 100 . Specifically, the main body 100 may be detachably coupled to the exhaust passage 10 through which the exhaust gas passes. In this case, the exhaust passage 10 may be any one of a branch passage for branching at least a portion of the exhaust gas discharged from the engine or a main passage through which the exhaust gas discharged from the engine passes.

The sub-body 200 is disposed inside the main body 100 . Specifically, the sub-body 200 may be disposed in the main body 100 in parallel with the longitudinal direction of the main body 100 . In addition, the sub-body 200 may also have a hollow interior so that exhaust gas is introduced.

For example, the sub-body 200 may be supported by the main body 100 .

The burner 300 is disposed in a direction crossing the longitudinal direction of the sub-body 200 . In addition, the burner 300 may form a flame by injecting fuel into the sub-body 200 . Specifically, the burner 300 may be disposed toward the central portion of the sub-body 200 in the longitudinal direction.

In addition, the burner device 101 according to an embodiment of the present invention may further include a first pipe 400 .

The first pipe 400 may guide the supply of combustion air to the sub-body 200 . Specifically, the first pipe 400 may guide so that the air used during combustion of the burner 300 for injecting fuel is supplied. That is, the combustion air supplied along the first pipe 400 may be used during combustion of the flame injected from the burner 300 .

In addition, the burner apparatus 101 according to an embodiment of the present invention may further include a pilot burner 500 , a main supply pipe 610 , and a sub supply pipe 620 .

The pilot burner 500 may be disposed in the sub-body 200 . Specifically, the pilot burner 500 may be disposed to be spaced apart from each other in the longitudinal direction of the sub-body 200 inside the burner 300 and the sub-body 200 . For example, the pilot burner 500 may be disposed at the rear of the burner 300 based on the inflow direction of the exhaust gas flowing into the main body 100 . That is, the pilot burner 500 may be disposed relatively farther from one side of the sub-body 200 through which the exhaust gas of the sub-body 200 flows than the burner 300 . In addition, the pilot burner 500 may be located in the sub-body 200 rearward than the first pipe 400 .

The main supply pipe 610 may supply gaseous fuel to the burner 300 . Specifically, the burner device 101 may further include a fuel supply member 630 . The gaseous fuel stored in the fuel supply member 630 may be guided to be supplied to the burner 300 through the main supply pipe 610 . That is, the gaseous fuel stored in the fuel supply member 630 may be supplied to the burner 300 through the main supply pipe 610 so that the burner 300 forms a flame.

The sub supply pipe 620 may connect the main supply pipe 610 and the pilot burner 500 . Also, the sub-supply pipe 620 may supply gaseous fuel to the pilot burner 500 . Specifically, the gaseous fuel stored in the fuel supply member 630 may be supplied to the burner 300 through the main supply pipe 610 or to the pilot burner 500 through the sub supply pipe 620 .

That is, the gaseous fuel stored in the fuel supply member 630 may be supplied to the burner 300 and the pilot burner 500 . Accordingly, the burner device 101 according to an embodiment of the present invention can effectively supply gaseous fuel required for the pilot burner 500 and the burner 300 .

In addition, the burner apparatus 101 according to an embodiment of the present invention may further include an air supply unit 700 .

The air supply unit 700 may supply air to the gaseous fuel supplied to the main supply pipe 610 . Specifically, the air supply unit 700 may allow gaseous fuel to be mixed with air and supplied to the burner 300 . That is, the air supply unit 700 may supply gaseous fuel and premixed air to the burner 300 .

The air supply unit 700 may include a compressed air supply pipe 710 and a compressed air supply member 720 .

At least a portion of the compressed air supply pipe 710 may be disposed inside the first pipe 400 . Specifically, the compressed air supply pipe 710 may be disposed in parallel with the first pipe 400 , and one end may be connected to the burner 300 . In addition, the compressed air supply pipe 710 may be connected to the main supply pipe 610 . That is, the main supply pipe 610 may have one end connected to the compressed air supply pipe 710 and the other end connected to the fuel supply member 630 .

The compressed air supply member 720 may allow compressed air to be supplied to the compressed air supply pipe 710 . The compressed air supplied to the compressed air supply pipe 710 by the compressed air supply member 720 may be premixed by the compressed air supplied to the gaseous fuel supplied to the burner 300 .

For example, the compressed air supply member 720 may be a compressor or a storage unit in which compressed air is stored.

In the burner device 101 according to an embodiment of the present invention, compressed air supplied by the air supply unit 700 and fuel in gaseous state may be supplied to the burner 300 in a pre-mixed state, so that stable combustion is achieved. can do.

Also, as shown in FIG. 1 , one side of the first pipe 400 of the burner device 101 according to an embodiment of the present invention may be inclined.

One side of the first pipe 400 may be supported by the sub-body 200 . In addition, one end disposed in the sub-body 200 of the first pipe 400 may be inclined toward the front of the burner 300 . Specifically, an inclined portion 410 may be formed at one end of the first pipe 400 . An end of the inclined portion 410 closest to the central axis of the sub-body 200 may be located in front of the burner 300 .

The burner 300 may be disposed to protrude toward the inside of the sub-body 200 from the center of the first pipe 400 . One end of the inclined portion 410 protruding toward the center of the sub-body 200 may be disposed in front of the burner 300 . That is, the inclined portion 410 may be formed in a direction adjacent to the inner circumferential surface of the sub-body 200 in a direction adjacent to the pilot burner 500 . In other words, one end of the inclined portion 410 closest to the inner circumferential surface of the sub-body 200 may be disposed between the burner 300 and the pilot burner.

Accordingly, the combustion air supplied through the first pipe 400 by the inclined portion 410 of the first pipe 400 is not disturbed by the exhaust gas flowing into the sub-body 200 and effectively burner 300 . can be supplied with In addition, the flame formed by the combustion air supplied through the first pipe 400 by the inclined portion 410 of the first pipe 400 is formed without being disturbed by the exhaust gas flowing into the sub body 200 . can be

In addition, as shown in FIGS. 1 and 2 , the burner device 101 according to an embodiment of the present invention may further include a perforated plate 210 .

The perforated plate 210 may be supported by the sub-body 200 . Specifically, the perforated plate 210 may be disposed in front of the burner 300 disposed in the sub-body 200 to be supported by the sub-body 200 .

In addition, the perforated plate 210 is provided with a plurality of through holes 211 as shown in FIG. 2 . In addition, the plurality of through-holes 211 may be formed more in the upper portion of the perforated plate 210 than in the lower portion of the perforated plate 210 . An upper portion of the perforated plate 210 may be disposed adjacent to one end of the burner 300 disposed on the sub-body 200 . That is, the upper portion of the perforated plate 210 may be disposed relatively adjacent to one end of the burner 300 positioned relatively far from the compressed air supply pipe 710 .

Specifically, the number of the plurality of through holes 211 formed in one region of the perforated plate 210 disposed relatively far from the first pipe 400 is the first pipe 400 and the perforated plate 210 disposed relatively adjacent to the first pipe 400 . ) may be formed more than the number of the plurality of through-holes 211 in other areas.

For example, the through hole 211 may not be formed in the lower portion of the perforated plate 210 .

Therefore, the perforated plate 210 having a plurality of through holes 211 is formed so that a uniform exhaust gas passes through the burner 300 to form a flame, and the supply of combustion air through the first pipe 400 is exhaust gas. It can be done effectively without being disturbed by the flow of

For example, a baffle may be formed in some of the plurality of through holes 211 to form a swirl in the exhaust gas passing through the through holes 211 .

In addition, the perforated plate 210 having a plurality of through holes 211 formed therein is supported by the sub-body 200 to prevent the pressure of exhaust gas passing through the sub-body 200 and the main body 100 from increasing. can

In addition, the burner device 101 according to an embodiment of the present invention may further include a flame detector 450 .

The flame detector 450 may be installed on the first pipe 400 . The flame detector 450 may be disposed on the first pipe 400 disposed outside the main body 100 among the first pipes 400 having one side penetratingly disposed on the side surface of the main body 100 .

In addition, the flame detector 450 may detect the presence or absence of a flame formed from the burner 300 and the pilot burner 500 . The flame detector 450 may transmit this information to the control unit.

In addition, the flame detector 450 may be installed on the first pipe 400 to which combustion air is supplied, thereby effectively protecting it from high temperature caused by flame formation.

In addition, the nozzle 310 of the burner device 101 according to an embodiment of the present invention may be arranged to have a changeable angle (a) in the range of 10 degrees (°) to 30 degrees (°).

In the burner 300 , as shown in FIG. 3 , a plurality of nozzles 310 may be spaced apart from each other and disposed on the outer peripheral surface of the annular burner 300 . A plurality of nozzles 310 may be disposed on the outer circumferential surface of the burner 300 to be spaced apart from each other. A gaseous fuel may be injected through the nozzle 310 . Specifically, the nozzle 310 may be disposed to protrude from the burner 300 in the outer circumferential direction to inject gaseous fuel.

In addition, the nozzle 310 may be disposed with a changeable angle a in the range of 10 to 30 degrees from the outer circumferential surface of the burner 300 . The nozzle 310 is disposed on the burner 300 within each of these ranges, so that the flame formed by the gaseous fuel injected from the plurality of nozzles 310 can be effectively maintained and stable combustion can be achieved.

When the nozzle 310 is disposed less than 10 degrees from the outer circumferential surface of the burner 300 , the flame generated by the burner 300 is concentrated in the central direction of the burner 300 , thereby causing instability of combustion.

Alternatively, when the nozzle 310 is disposed in a range exceeding 30 degrees from the outer circumferential surface of the burner 300, the size of the flame is increased so that the sub-body 200 is in contact with the inner circumferential surface of the sub-body 200 and the burner device 101 itself is heated. There is a problem. In this case, the efficiency of the burner device 101 itself is lowered, and there is a problem that a separate facility is required to solve the heating problem when the burner device 101 is installed.

In addition, the burner apparatus 101 according to an embodiment of the present invention may further include a compressed air detection member 840 and a control unit 900 as shown in FIGS. 1 and 4 .

The compressed air detection member 840 may detect the amount of compressed air of the compressed air supply member 720 . In addition, the compressed air detection member 840 may transmit the detected information to the control unit 900 .

The control unit 900 may determine whether the gaseous fuel supplied to the burner 300 can be burned with the current compressed air amount based on the information detected by the compressed air detection member 840 .

When the control unit 900 determines that the gaseous fuel supplied to the burner 300 cannot be combusted with only the compressed air amount of the current compressed air supply member 720 according to the information detected by the compressed air detection member 840, combustion It can be controlled so that the air for use and the compressed air are delivered to the burner 300 together. Specifically, the controller 900 may operate both the combustion air supply member 460 and the compressed air supply member 720 that supply combustion air through the first pipe 400 . The combustion air supply member 460 may supply combustion air to the first pipe 400 . For example, the combustion air supply member 460 may be a blower.

Alternatively, when the controller 900 determines that the gaseous fuel supplied to the burner 300 can be burned only with the compressed air amount of the current compressed air supply member 720 according to the information detected by the compressed air detection member 840 . , it is possible to control so that only compressed air is delivered to the burner 300 . Specifically, the control unit 900 operates the compressed air supply member 720 and stops the operation of the combustion air supply member 460 , and compressed air is supplied through the compressed air supply pipe 710 to provide gaseous fuel. may be supplied to the burner 300 in a pre-mixed state.

That is, the control unit 900 may selectively control the operations of the combustion air supply member 460 and the compressed air supply member 720 according to the information detected by the compressed air detection member 840 . Accordingly, the controller 900 may effectively control the combustion air supply member 460 and the compressed air supply member 720 so that the burner 300 is combusted efficiently.

Alternatively, the burner device 101 according to an embodiment of the present invention may further include a differential pressure detection member 830 and a control unit 900 as shown in FIGS. 1 and 4 .

The differential pressure detection member 830 may detect a differential pressure of exhaust gas passing through the main body 100 . In addition, a plurality of differential pressure detection members 830 are disposed in the main body 100 along the longitudinal direction of the main body 100 to be spaced apart from each other to detect the pressure of the exhaust gas.

Alternatively, in order to detect the differential pressure of exhaust gas passing through the main body 100 , the differential pressure detection member 830 may be installed on the exhaust passage 10 to which the main body 100 is detachably coupled.

* The control unit 900 may selectively operate the combustion air supply member 460 and the compressed air supply member 720 according to the information detected by the differential pressure detection member 830 .

The control unit 900 may compare the pressure information detected by the differential pressure detection member 830 with a reference pressure at which the current differential pressure inside the main body 100 is set. When the reference pressure of the set differential pressure is greater than the differential pressure detected by the differential pressure detection member 830, the control unit 900 operates the compressed air supply member 720 and stops the operation of the combustion air supply member 460 for compression. Compressed air may be supplied through the air supply pipe 710 to supply gaseous fuel to the burner 300 in a pre-mixed state.

Alternatively, when the reference pressure of the set differential pressure is smaller than the differential pressure detected by the differential pressure detection member 830, the control unit 900 operates the compressed air supply member 720 and the combustion air supply member 460 to supply compressed air. Compressed air may be supplied through the pipe 710 and the combustion air may be supplied to the burner 300 through the first pipe 400 through the combustion air supply member 460 .

In addition, the burner apparatus 101 according to an embodiment of the present invention may be installed in a ship 102 as shown in FIG. 4 . The vessel 102 may include an engine 910 and an exhaust gas aftertreatment device.

The engine 910 of the ship 102 generates power by burning the supplied fuel. In this case, at least a portion of the exhaust gas generated from the engine 910 may move through the exhaust passage 10 . The burner device 101 may be detachably coupled to the exhaust passage 10 . Specifically, flanges 110 may be formed on the outer peripheral surfaces of both ends of the main body 100 to be coupled to the exhaust passage 10 .

The exhaust gas aftertreatment device may include a selective catalytic reduction system 920 and a scrubber 930 . The selective catalytic reduction system 920 may inject a reducing agent to reduce the concentration of nitrogen compounds contained in exhaust gas. The scrubber 930 may reduce the concentration of sulfur oxides included in the exhaust gas.

The compressed air supply member 720 of the burner device 101 installed in the ship 102 may supply compressed air when the engine 910 is initially operated. Alternatively, the compressed air supply member 720 may supply compressed air to the selective catalytic reduction system 920 and the scrubber 930 . In addition, the compressed air supply member 720 may supply the compressed air supply member 720 of the burner device 101 to the burner 300 in a state in which gaseous fuel is pre-mixed.

Accordingly, the compressed air supply member 720 installed in the ship 102 can effectively supply compressed air to the compressed air supply pipe 710 of the burner device 101 as well as the engine 910 and the exhaust gas post-treatment device. . That is, one compressed air supply member 720 may effectively supply compressed air to the engine 910 , the exhaust gas post-treatment device, or the compressed air supply pipe 710 .

The burner device 101 according to an embodiment of the present invention may further include a burner valve 820 and a pilot valve 810 . The burner valve 820 is installed on the main supply pipe 610 to selectively open and close the supply of gaseous fuel stored in the fuel supply member 630 to the burner 300 . The burner valve 820 may be controlled by the controller 900 .

The pilot valve 810 is installed on the sub-supply pipe 620 to selectively open and close the supply of gaseous fuel stored in the fuel supply member 630 to the pilot burner 500 . The pilot valve 810 may be controlled by the controller 900 .

Hereinafter, a control process of the burner apparatus 101 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 .

When the burner device 101 is operated, the controller 900 may open the burner valve 820 and the pilot valve 810 so that gaseous fuel is supplied to the pilot burner 500 and the burner 300 . . At this time, the control unit 900 operates only the compressed air supply member 720 according to the information detected by the compressed air detection member 840 or the differential pressure detection member 830 or supplies the combustion air supply member 460 and the compressed air. The members 720 may be operated together.

After the burner 300 is ignited, the controller 900 may control each of the pilot burners 500 to close so that the gaseous fuel supply to the pilot burner 500 is stopped. At this time, the gaseous fuel may be supplied only to the burner 300 from the fuel supply member 630 by the controller 900 .

When the burner device 101 is installed in the ship 102 , the compressed air supply member 720 may supply compressed air to the compressed air supply pipe 710 as necessary when the burner device 101 is used.

Alternatively, even when the burner device 101 is not used, when the burner device 101 is installed in the ship 102 , compressed air may be supplied to the selective catalytic reduction system 920 or the scrubber 930 . Alternatively, even when the burner device 101 is not used, when the burner device 101 is installed in the ship 102 , compressed air is supplied to the engine 910 at the initial operation of the engine 910 to provide the engine 910 . It is possible to make the combustion occur effectively inside.

In addition, the control unit 900 may receive the information detected by the flame detector 450 to increase the supply amount of gaseous fuel supplied to the burner 300 or the pilot burner 500 when a flame is not formed. .

Alternatively, when the control unit 900 receives the information detected by the flame detector 450 and a flame is not formed even though the fuel supply is increased, the controller 900 determines that it is an error of the burner device 101 and determines the burner 300 or the pilot burner. It is possible to stop the supply of gaseous fuel supplied to the 500 and transmit this information so that the user can recognize it.

With such a configuration, the burner device 101 according to an embodiment of the present invention can facilitate installation and maintenance in the exhaust passage 10 . In addition, the burner device 101 can have improved combustion performance and efficiency compared to the conventional burner device. And when the burner device 101 is installed in the ship 102, the compressed air supplied to the burner device 101 is supplied to the engine 910 or the exhaust gas post-treatment device without a separate device. It can be effectively supplied from the compressed air supply member 720 to the burner (300).

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential characteristics thereof. will be.

Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims, the meaning and scope of the claims, and All changes or modifications derived from the equivalent concept should be construed as being included in the scope of the present invention.

10: exhaust flow path 100: main body
101: burner device 102: ship
200: sub body 210: perforated plate
211: through hole 300: burner
310: nozzle 400: first pipe
410: inclined portion 450: flame detector
460: combustion air supply member 500: pilot burner
610: main supply pipe 620: sub supply pipe
630: combustion air supply member 700: air supply
710: compressed air supply pipe 720: compressed air supply member
830: differential pressure detection member 840: compressed air detection member
900: control unit
910: engine 920: selective catalytic reduction system
930: scrubber

Claims (13)

In the burner device for raising the temperature of exhaust gas,
The exhaust gas is introduced and the main body is hollow inside;
a sub-body disposed inside the main body;
a burner disposed in a direction crossing the longitudinal direction of the sub-body to inject fuel into the sub-body to form a flame;
a first pipe partly inserted into the sub-body and including an inclined part formed to be inclined on the part inserted and disposed inside the sub-body, the first pipe guiding the supply of combustion air to the sub-body;
a main supply pipe for supplying gaseous fuel to the burner; and
An air supply unit disposed inside the first pipe to supply air to the gaseous fuel supplied to the burner
A burner device comprising a. In claim 1,
a pilot burner spaced apart from the burner in the sub-body; and
A sub supply pipe for supplying gaseous fuel to the pilot burner by connecting the main supply pipe and the pilot burner
A burner device comprising a. delete In claim 1,
One side of the first pipe is supported by the sub-body, and one end of the first pipe in the sub-body is inclined toward the front of the burner. In claim 1,
The burner device further comprising a perforated plate disposed in front of the burner to equalize the flow of exhaust gas moving to the burner. In claim 5,
A plurality of through holes are formed in the perforated plate, and a plurality of through holes are formed in one region of the perforated plate relatively far from the first pipe compared to other regions of the perforated plate adjacent to the first pipe burner device. In claim 1,
The burner device further comprising a flame detector installed on the first pipe to check the state of the flame generated by the burner. In claim 1,
and a plurality of nozzles disposed on the burner spaced apart from each other and disposed at an angle within a range of 10 to 30 degrees from an outer circumferential surface of the burner. The exhaust gas is introduced and the main body is hollow inside;
a sub-body disposed inside the main body;
a first pipe disposed in a direction crossing the longitudinal direction of the sub-body, a portion of which is inserted into the sub-body, and guiding the supply of combustion air to the sub-body;
It is disposed in a direction crossing the longitudinal direction of the sub-body, and one end of the first pipe is disposed to protrude toward the inside of the sub-body relative to one end of the first pipe inserted and disposed in the sub-body, so that the gaseous state inside the sub-body is a burner that injects fuel to form a flame;
a combustion air supply member for supplying combustion air to the first pipe;
a main supply pipe for supplying gaseous fuel to the burner;
a compressed air supply pipe disposed inside the first pipe so as to surround at least a portion of the first pipe in parallel with the first pipe, and premixing gaseous fuel supplied to the burner by supplying compressed air; and
A compressed air supply member for supplying compressed air to the compressed air supply pipe
A burner device comprising a. In claim 9,
a compressed air detection member for detecting an amount of compressed air of the compressed air supply member; and
A control unit for selectively operating the combustion air supply member and the compressed air supply member according to the information detected by the compressed air detection member
A burner device further comprising a. In claim 10,
a differential pressure detection member for detecting a differential pressure of exhaust gas passing through the main body; and
A control unit for selectively operating the combustion air supply member and the compressed air supply member according to the information detected by the compressed air detection member
A burner device further comprising a. a main body detachably coupled to an exhaust passage through which the exhaust gas passes, and having a hollow interior;
a sub-body disposed inside the main body;
a burner inserted and disposed inside the sub-body in a direction crossing the longitudinal direction of the sub-body to inject fuel into the sub-body to form a flame;
a pilot burner arranged to be spaced apart from the burner in the sub-body in a direction parallel to the longitudinal direction of the sub-body;
a main supply pipe for supplying gaseous fuel to the burner;
a sub supply pipe connecting the main supply pipe and the pilot burner to supply gaseous fuel to the pilot burner;
a first pipe disposed in a direction crossing the longitudinal direction of the sub-body, a portion of which is inserted into the sub-body, and guiding the supply of combustion air to the sub-body;
a perforated plate disposed in front of a portion of the first pipe and supported by the sub-body to equalize the flow of exhaust gas flowing into the sub-body; and
From the main supply pipe, including a compressed air supply pipe disposed inside the first pipe to surround at least a part of the first pipe in parallel with the first pipe, and supplying compressed air to premix the gaseous fuel supplied to the burner. An air supply unit that supplies air to the supplied gaseous fuel
A burner device comprising a. In a ship equipped with an exhaust gas post-treatment device for post-processing exhaust gas discharged by power generated by an engine,
A main body having a hollow interior, a sub-body disposed inside the main body, and a sub-body inserted into the sub-body in a direction crossing the longitudinal direction of the sub-body to inject gaseous fuel into the sub-body A burner to form a flame, a first pipe disposed in a direction crossing the longitudinal direction of the sub-body and partially inserted into the sub-body, and air for combustion is supplied to the sub-body through the first pipe a burner device including a combustion air supply member, and a compressed air supply pipe, a part of which is disposed on the first pipe, for premixing the gaseous fuel supplied to the burner, and for increasing the temperature of at least a portion of the exhaust gas; and
A compressed air supply member for supplying compressed air to at least one of the engine, the exhaust gas after-treatment device, and the compressed air supply pipe
ships containing

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