KR101960249B1 - A burner with multiple combustion chambers - Google Patents

Abstract

The present invention relates to a combustion apparatus having a plurality of combustion chambers, and more particularly, to a combustion apparatus having a plurality of combustion chambers to which external air is supplied in a stacked state, a complete combustion of fuel occurs by injecting a flame and external air from below The present invention relates to a combustion apparatus having a plurality of combustion chambers.
According to the present invention, the supply of air from the inside of the combustion apparatus enables the complete combustion of the fuel, the heat storage efficiency is increased, the consumption amount of the fuel can be reduced, and the residence time of the flame is prolonged, .

Description

[0001] A BURNER WITH MULTIPLE COMBUSTION CHAMBERS [0002]

The present invention relates to a combustion apparatus having a plurality of combustion chambers, and more particularly, to a combustion apparatus having a plurality of combustion chambers to which external air is supplied in a stacked state, a complete combustion of fuel occurs by injecting a flame and external air from below The present invention relates to a combustion apparatus having a plurality of combustion chambers.

A boiler is a heating device used to increase the temperature inside a room or building by directly or indirectly transferring heat generated during the combustion of fuel or the conversion of electric energy.

Generally, heat is generated by burning fuel such as oil, coal, or recycled waste from inside the combustion chamber. The heat of combustion is circulated directly inside the building, or the heating water heated by the combustion heat To circulate and heat.

In the combustion process, it is important to increase the combustion efficiency by completely burning the fuel, and it is also very important to increase the heat transfer efficiency so that the generated heat can be used without being lost. To this end, many types of boilers or combustion devices have been disclosed.

FIG. 1 is a perspective view of a boiler according to an embodiment of the prior art, and FIG. 2 is an internal perspective view of the boiler shown in FIG. 1. FIG.

1 and 2, a case 100 is formed in a shell shape with an inner case 104 and an outer case 102 at predetermined intervals, and an inner case 104 and an outer case 102, The working fluid flowing through the inside of the heating pipe 115 flows into the flow path portion 110,

A discharge part 125 through which a working fluid is finally discharged and a communication part 130 through which a combustion gas in the boiler is discharged are provided on the upper surface of the case 100.

Further, the case 100 is provided with a burner nozzle hole 135 capable of receiving the burner nozzle at a lower side of its side, to receive the flame from the burner.

The heating pipe 115 is connected to the injection unit 120 and is provided in a zig-zag form on the horizontal plane of the upper part of the inner side of the boiler.

The heat storage plate 140 is horizontally provided between the plurality of layers in which the heating tube 115 is arranged. At this time, three of the edges of the heat storage plate 140 are configured to abut the inner case 104, and the remaining one non-abutted passage allows the combustion gas of the heating pipe 115 and the boiler to pass through. Since the heat storage plate 140 is arranged in a plurality of layers in the boiler, the combustion gas in the boiler flows upward through the heat storage plate 140 arranged in layers and discharged through the communication part 130 Since the time can be delayed as much as possible, the thermal efficiency can be greatly improved as compared with the conventional boiler.

The working fluid that comes into contact with one end of the convection pipe 145 which is bent in the 'A' shape out of the working fluid that has exited from the heating pipe 115 and entered into the flow path portion 110, And flows to the other end of the convection tube 145 by the convection action of the working fluid in the tube 145. After the above process, the working fluid in the flow path portion 110 is discharged to the outside of the boiler through the discharge portion 125.

The central portion of the heating plate 150 is formed close to the burner nozzle orifice 135, and the heating plate 150 is formed symmetrically with respect to the center line of the central line. By adopting such a structure, the flame emitted from the burner is effectively gathered near the 'M' shaped heating plate 150 and repeatedly heated and rotated.

However, in such a boiler, the flame generated in the lower portion heats the working fluid to heat, and the space in which the flame is generated or stays is relatively limited. Therefore, there is a problem that the efficiency of the heat transfer is lowered because the flame can not meet the working fluid in as much space as possible.

KR 10-2001-0097298 A KR 10-1515880 B1 KR 20-0147543 Y1

According to an aspect of the present invention, there is provided a combustion apparatus including: a combustion chamber having a plurality of combustion chambers each having a combustion chamber formed therein and having a plurality of combustion chambers stacked vertically, And an object of the present invention is to provide a device.

It is another object of the present invention to provide a combustion apparatus having a plurality of combustion chambers which are capable of storing heat for a long period of time by storing a ceramic heat insulator having a good heat storage efficiency inside the body of the combustion apparatus, .

It is another object of the present invention to provide a combustion apparatus having a plurality of combustion chambers which are provided with a damper in the form of a lid which moves freely in the combustion chamber so that the flame can not easily escape and the residence time can be increased.

According to an aspect of the present invention, there is provided a combustion apparatus for generating heat through combustion of fuel, comprising: a body having a space formed therein; An intake pipe 204 connected to the body 202 to allow outside air to flow into the body 202; An exhaust pipe 208 connected to the body 202 to discharge combustion gas generated inside the body 202 to the outside; A flame inlet 212 formed at a lower end of the body 202 to guide a flame generated by an external flame generator into the body 202; A plurality of combustion chambers 216 stacked in the vertical direction within the body 202 to generate the flames by burning the fuel; An air supply pipe 220 connecting the two combustion chambers 216 disposed below and above to guide the outside air to be supplied from the lower combustion chamber 216 to the upper combustion chamber 216; And a heat insulating material 222 installed on a side surface of the body 202 and storing heat generated in the combustion chamber 216. The plurality of combustion chambers 216 sequentially generate flames from the lower side to the upper side .

The combustion chamber (216) has a body (216a) hollow inside and open at the top and bottom; A cover 216b covering the lower and upper portions of the body 216a and having a plurality of holes; A cylindrical net 216c having upper and lower openings and meshed on its side and connected to holes formed in a lid 216b covering the lower and upper portions of the body 216a; .

The combustion chamber 216 has an upwardly concave shape and includes a damper 216d whose diameter is smaller than the inner diameter of the cylindrical net 216c; A ring 216e attached to the upper surface of the damper 216d; And a wire 216f connected at one end to the ring 216e and attached to a lower cover 216b of the combustion chamber 216 having the other end at the upper end thereof, And lowers the speed of the flame passing through the combustion chamber 216c.

According to the present invention, the supply of air from the inside of the combustion apparatus enables the complete combustion of the fuel, the heat storage efficiency is increased, the consumption amount of the fuel can be reduced, and the residence time of the flame is prolonged, .

1 is a perspective view of a boiler according to a prior art embodiment;
2 is an internal perspective view of the boiler shown in Fig.
3 is a perspective view illustrating a structure of a combustion apparatus according to an embodiment of the present invention.
Fig. 4 is a perspective view showing the internal structure of the combustion apparatus of Fig. 3; Fig.
5 is a perspective view showing a laminated structure of a combustion chamber.
6 is a sectional view showing the internal structure of the combustion apparatus.
7 is an exploded perspective view showing the detailed structure of the lower combustion chamber.
8 is an exploded perspective view showing the detailed structure of the upper combustion chamber.
9 is a sectional view showing the detailed structure of the upper combustion chamber.
10 is an exploded perspective view showing the coupling relationship of the damper.
11 is a sectional view showing a coupling relation of the damper.
12 is a conceptual view showing a combustion state in a combustion chamber.
13 is a cross-sectional view showing a state change of a damper in a combustion process.

Hereinafter, a "combustion apparatus having a plurality of combustion chambers" (hereinafter referred to as "combustion apparatus") according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 3 is a perspective view showing the structure of a combustion apparatus according to an embodiment of the present invention, FIG. 4 is a perspective view showing the internal structure of the combustion apparatus of FIG. 3, FIG. 5 is a perspective view showing a lamination structure of the combustion chamber, Fig.

The combustion apparatus 200 according to the present invention comprises combustion means for generating a flame by burning fuel, intake means for supplying outside air into the combustion means, and exhaust means for exhausting the generated smoke to the outside do.

The combustion means is disposed in a space formed inside the body 202. Although the body 202 of the present invention is illustrated as being cylindrical, it may be a rectangular parallelepiped or other shape.

A suction tube 204 is connected to the lower end of the body 202, and a compressor 206 is installed in the suction tube 204. The external air supplied from the compressor 206 flows into the interior of the body 202 through the intake pipe 204.

An exhaust pipe 208 is installed at the lower end of the body 202. The exhaust pipe 208 is provided with an exhaust fan 210. By the operation of the exhaust fan 210, the combustion gas inside the exhaust pipe 208 is discharged to the outside.

Since the compressor 206 and the exhaust fan 210 are general devices used for the intake and exhaust of air, the structure and the operation method are not described in detail.

A flame inlet 212 is formed at the lower end of the body 202. The flame inlet 212 is a window connected to an internal combustion chamber 216 and serves as an inlet for guiding a flame generated in an external flame generator (not shown) to the inside of the combustion apparatus 200. The flame inlet 212 may be provided with a door that can be opened or closed.

As shown in FIGS. 4 and 5, a plurality of combustion chambers 216 are vertically stacked in the body 202. In the combustion chamber 216, a flame is generated by the air supplied from outside.

And a lower lid 214 and an upper lid 218 are installed on the upper and lower portions of the inside of the body 202, respectively.

The lower pedestal 214 is installed under the lowest combustion chamber 216, and the intake pipe 204 is directly connected. The lower pedestal 214 receives the outside air and collects the combustion residues falling from the upper side to facilitate the discharge.

The upper lid 218 is installed on the uppermost combustion chamber 216 and is used for fixing the damper 216d.

A heat insulating material 222 is provided on a side surface of the body 202. Preferably, the heat insulating material 222 is wrapped around the side surface of the body 202 or embedded in the inside of the side surface. The insulation consists of feldspar-based ceramic material with excellent thermal storage capacity. The heat insulating material stores heat generated in the combustion chamber 216 as much as possible and is used for heating.

The exhaust pipe 208, which is a passage through which the combustion gas is discharged, starts from the inner upper end of the body 202 and extends to the outside through the heat insulating material 222. Preferably, the interior portion of the body 202 is connected outwardly from top to bottom so as to increase the residence time of the combustion gases and to maximize the use of heat.

Each of the combustion chambers 216, which are spaced apart from each other by a predetermined distance, are connected by an air supply pipe 220. The air supply pipe 220 is connected to the lower intake pipe 204 to allow the external air supplied from the compressor 206 to flow upward through the lower combustion chamber 216. The complete combustion of various fuels is performed inside the combustion chamber 216 due to the external air supplied from below through the air supply pipe 220.

In the present invention, flames are generated sequentially from the bottom in a state where the plurality of combustion chambers 216 are stacked one above the other. In the drawings and the detailed description, two of them are stacked. The upper side of the two combustion chambers 216 is referred to as an upper combustion chamber and the lower side thereof is referred to as a lower combustion chamber. However, the number of the combustion chambers 216 may be increased or decreased depending on the size of the space requiring heating.

7 is an exploded perspective view showing the detailed structure of the lower combustion chamber.

The combustion chamber 216 is a space in which combustion occurs while fuel and outside air meet, and a plurality of combustion chambers 216 are stacked vertically so that a lower portion of the combustion chamber 216 is transmitted upward.

A plurality of combustion chambers are described as having the same size or shape, but the size may vary in a relatively small ratio. The structure of the upper and lower combustion chambers 216 is slightly different.

The combustion chamber 216 is composed of a cylindrical body 216a having an empty interior and an open top and bottom and a lid 216b covering the top and bottom of the body 216a. The cover 216b has a plurality of holes. And holes formed in the cover 216b for covering the upper and lower portions are provided so as to be located at the same position in the vertical direction.

A cylindrical net 216c is installed in the combustion chamber 216. The cylindrical net 216c is a cylinder having upper and lower openings, and the side surface is a mesh so that air can flow. Since the combustion chamber 216 is in a high temperature state during combustion, the cylindrical net 216c is made of a metal material capable of withstanding high temperatures.

The open portions below and above the cylinder nets 216c are respectively engaged with the holes formed in the cover 216b covering the lower and upper portions of the combustion chamber 216, respectively. Therefore, the cylindrical net 216c forms a passage passing through the upper and lower sides of the combustion chamber 216, and serves to guide the upwardly raised flame from the lower side.

In the present invention, the body 216a and the cylindrical net 216c are illustrated as being cylindrical, but the shape of the cross section is not limited to a circle but may be different.

One end of the air supply pipe 220 is coupled to a separate hole formed in the cover 216b and the other end is coupled to the lower cover 216b of another combustion chamber 216 stacked on the upper side. Therefore, the outside air supplied from the lower side through the air supply pipe 220 moves from the lower combustion chamber 216 to the upper combustion chamber 216. Further, the outside air entering the inside of the body 216a of the combustion chamber 216 passes through the side of the cylindrical net 216c and rises upward to meet the flame.

FIG. 8 is an exploded perspective view showing the detailed structure of the upper combustion chamber, and FIG. 9 is a cross-sectional view showing the detailed structure of the upper combustion chamber.

The upper combustion chamber 216 is formed of a cylindrical body 216a like the lower combustion chamber 216 and a cover 216b having a plurality of holes formed below and above the body 216a. An extension net 216g is further provided above the body 216a.

The cylindrical extended mesh 216g having the lower open top is made of a metal mesh like the cylindrical mesh 216c, and air can be circulated. The extension net 216g serves to form a storage space in the upper space of the body 216a.

The upper combustion chamber 216 is also provided with a cylindrical net 216c whose length is similar to the sum of the torso 216a and the extended net 216g. This causes the upper portion of the cylindrical net 216c to rise above the lid 216b.

As a result, a storage space formed by the upper surface of the lid 216b, the outer surface of the cylindrical net 216c, and the inner surface of the extended net 216g is formed in the upper combustion chamber 216. A heat absorbing material 216h of a ceramic material is laminated on this storage space. The heat absorbing material 216h stores heat generated during the combustion process so that it can be maintained for a long time.

FIG. 12 is a conceptual view showing a combustion state in the combustion chamber. FIG. 13 shows a state change of a damper in a combustion process. FIG. 10 is an exploded perspective view showing the coupling relationship of the damper. Sectional view.

A portion where the flame is generated in the combustion chamber 216 is a portion where a cylindrical net 216c is provided and a passageway is formed up and down. In the inside of the cylindrical net 216c, a flame is generated while the fuel and the outside air meet, and the air rises rapidly from the bottom to the top because the combustion occurs. However, if the flame passes through the combustion chamber 216 at an excessively high speed and is lifted up, it is necessary to lower the speed because the heat is discharged quickly. To this end, a damper 216d is provided inside the cylindrical net 216c.

The damper 216d installed in the present invention is located slightly above the center in the vertical direction inside the cylindrical net 216c. The damper 216d is installed in the shape of a concave plate turned upside down so that the diameter of the damper 216d is smaller than the inner diameter of the cylindrical net 216c so that the air can escape to the side of the damper 216d and the air is resisted by the damper 216d do.

Since the bottom surface of the damper 216d is concave upward, the outside air and the flame coming from the bottom collide against the underside of the damper 216d, and rise up to the side along the curved surface. One or two rings 216e are attached to the upper surface of the damper 216d and one end of the wire 216f is connected to the ring 216e. The other end of the wire 216f is attached to the lower cover 216b of the combustion chamber 216 located above.

The damper 216d, the ring 216e, and the wire 216f are preferably made of a metal material so as to withstand a high temperature condition.

When a flame is generated in such a structure, as shown in FIG. 13, a strong ascending air flow ascending from below meets with the damper 216d, and the concave dish-shaped damper 216d swings to the left and right. Since the damper 216d is connected only with the ring 216e and the wire 216f, the damper 216d can move relatively freely, thereby allowing the upward flow to rise upwards while bypassing the side.

Therefore, as shown in FIG. 12, in the combustion chamber 216, flames are generated step by step as the fuel and the external air are supplied. The flame that has climbed up to the top is bent to the side while hitting the upper lid 218. The flame enters the inlet of the exhaust pipe 208 at the upper side and is discharged to the outside by the force of the exhaust fan 210. The heat generated in this process is stored in the heat insulating material 222 and is transferred to a heat circulation device (not shown) provided outside and used for heating.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

200: combustion device 202: body
204: intake tube 206: compressor
208: exhaust pipe 210: exhaust fan
212: flame inlet 214:
216: combustion chamber 218: upper lid
220: Air supply pipe 222: Insulation

Claims (3)

1. A combustion device for generating heat through combustion of fuel,
A body 202 having a space formed therein;
An intake pipe 204 connected to a lower end of the body 202 to allow external air to be introduced into the interior of the body 202 by a compressor 206;
An exhaust pipe 208 connected to the body 202 to exhaust the combustion gas generated inside the body 202 to the outside by the exhaust fan 210;
A flame inlet 212 formed at a lower end of the body 202 to guide a flame generated by an external flame generator into the body 202;
A plurality of combustion chambers 216 stacked in the vertical direction within the body 202 to generate the flames by burning the fuel;
An air supply pipe 220 connecting the two combustion chambers 216 disposed below and above to guide the outside air to be supplied from the lower combustion chamber 216 to the upper combustion chamber 216;
And a heat insulating material 222 formed on the side surface of the body 202 and made of a feldspar ceramic material for storing heat generated in the combustion chamber 216,
The plurality of combustion chambers 216 generate flames sequentially from below to upward,
The combustion chamber 216
A body 216a which is hollow and has an open top and a bottom;
A cover 216b covering the lower and upper portions of the body 216a and having a plurality of holes;
A cylindrical net (216c) having upper and lower openings, a side surface of which is a mesh, and the lower and upper open portions are respectively coupled to holes formed in a cover (216b) covering the upper and lower portions of the body (216a);
A damper 216d having an upwardly concave shape that reduces the speed of the flame passing through the cylindrical net 216c and is smaller in diameter than the inner diameter of the cylindrical net 216c;
A ring 216e attached to the upper surface of the damper 216d;
A wire 216f having one end connected to the ring 216e and attached to the lower cover 216b of the combustion chamber 216 having the other end at the upper end;
An extension net 216g which is further provided in a cylindrical shape above the body 216a and is made of a metal mesh and can circulate air;
A heat absorbing material of a ceramic material which is stacked in a storage space formed by the upper surface of the cover 216b, the outer surface of the cylindrical net 216c, and the inner surface of the extended net 216g, 216h). ≪ / RTI > delete delete

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