KR101648100B1 - Stove - Google Patents

Abstract

The present invention relates to a fireplace, comprising a combustion chamber in which a combustion space in which fuel charged through an open side provided with a door is formed, and a discharge port for discharging combustion gas and ashes to the lower portion of the combustion space are formed, An upper body formed with a circulation duct for guiding the combustion gas around the chamber to the periphery of the combustion chamber and exhausting the combustion gas guided by the circulation duct to the outside, And a heating pipe connected to a front end of the upper body to discharge the air heated by the combustion gas guided by the circulating duct to the front of the upper body, And the air is introduced into the combustion chamber as it is spaced apart from the combustion chamber and flows through the interior of the circulation duct, A stove, characterized in that is heated by the waste heat of the combustion gas to be discharged road is disclosed. Accordingly, the air is forcedly drawn from the outside of the hearth by the intake fan formed on the lower body, and is discharged through the heating tube provided on the moving path through which the combustion gas passes, to the front of the upper body. And has excellent thermal efficiency.

Description

Stove {STOVE}

The present invention relates to a stove, and more particularly, to a stove, and more particularly, to a circulation chamber in which a combustion gas circulates around a combustion chamber to emit thermal energy, and a warm air is discharged through a heating tube passing through the circulation chamber, So that the temperature of the surroundings can be raised quickly.

Generally, a fireplace is a type of heating device that warms up the interior of a room, ranging from a large fireplace for industrial purposes such as agriculture and animal husbandry to a small fireplace that can be used for outdoor living such as camping.

As for the conventional technology of such a stove, there is a "stove for solid fuel" of Korean Patent Laid-Open Publication No. 10-2007-0096133 (published on October 22, 2007). This will be described with reference to Fig.

1 is a sectional view showing a conventional fireplace. The stove according to the related art includes a body 2, a discharge passage 4 provided at an upper portion of the body 2 to discharge combustion gas, and an air supply inlet pipe A fuel supply port 5 connected to the fuel supply port 11 for supplying fuel and a blower 1 installed at the lower side to supply air to the inside of the body 2 and a body 2, An air chamber 7 which is fixed to the air chamber 7 by means of an air inlet 21 fixed to the air chamber 7 and a roast tall And a re-circulation pipe 3 provided at a lower portion of the re-circulation pipe 6.

The air chamber 7 has a circular shape in the form of a bowl and has a plurality of injection nozzles (diameter 1 to 3 mm) 7-1. On both sides of the air chamber 7, the lower part is opened and the upper part is closed And an air discharge pipe 8 having an injection nozzle (diameter of 1 to 3 mm) provided with a spray nozzle 8-1 in one direction.

In such a conventional stove, the heating effect is not expected until the body is sufficiently heated by the combustion heat being transferred to the atmosphere through the body 2, and the area of contact with the atmosphere is limited to the body 2,

In addition, the conventional stove has a problem that the heat efficiency is lowered because the combustion heat is vertically raised through the discharge passage formed on the upper part of the body and discharged directly to the outside, so that waste heat can not be recirculated.

In addition, in the conventional stove, a door (not shown) is provided at a fuel inlet so as to prevent smoke generated when the fuel is burned in the main body from being exhausted through the fuel inlet. When the fuel is burned and the door is opened There is a phenomenon that the smoke staying in the main body is exhausted through the fuel inlet.

Therefore, before opening the door, the user has to open the door after opening the year by operating a damper (not shown) installed in the flue so that the smoke inside the main body can sufficiently escape through the flue.

Korean Registered Utility Model No. 20-0438301

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a stove capable of rapidly heating the outside of the stove by blowing air outside the stove by forcibly sucking and heating the stove.

It is another object of the present invention to provide a stove in which combustion gas is not discharged through the fuel inlet even if the damper actively opening or closing the exhaust gas of the combustion gas according to the opening and closing of the door installed at the fuel inlet is opened and the door is opened.

It is also an object of the present invention to provide a stove capable of maximizing the heat efficiency of the stove by re-burning the combustion gas discharged through the stove and minimizing the contamination by the combustion gas exhausted to the outside of the stove.

According to an aspect of the present invention, there is provided a combustion chamber in which a fuel is burnt through an opened one side of a door, and a discharge port for discharging a combustion gas and a material to a lower portion of the combustion space. A combustion chamber in which the combustion chamber is formed and a circulation duct for guiding the combustion gas discharged through the discharge port around the combustion chamber to the periphery of the combustion chamber is formed and a flue for exhausting the combustion gas guided to the circulation duct is formed And a heating pipe which is installed to penetrate the inside of the upper body and the circulation duct and has a front end communicated to the upper body and discharging the air heated by the combustion gas guided by the circulation duct to the front of the upper body, The upper body is introduced into the combustion chamber as the circulation duct is spaced apart from the combustion chamber, Is achieved by the fireplace, characterized in that by flowing through the inside of the ring duct is heated by the waste heat of combustion gas discharged to the flue.

Preferably, the furnace further includes a lower body installed at a lower portion of the upper body, the lower body communicating with a base end of the heating tube and having an intake fan for supplying external air to the heating tube.

In addition, the combustion chamber may have an exhaust duct communicating with the circulation duct at an upper portion thereof, and the exhaust duct may be provided with an exhaust damper unit for regulating the amount of exhaust gas discharged therein.

The exhaust damper unit includes a shield plate interrupting the exhaust of the combustion gas interposed in the exhaust duct, a rotation shaft formed on one side and the other side of the shield plate and supported by the inside of the exhaust duct, And an adjustment lever which is exposed to the front of the upper body and is operated by a user in a connected state.

The exhaust damper unit includes a shield plate for interrupting the exhaust of the combustion gas while intercepting the inside of the exhaust duct, a rotation shaft formed on one side and the other side of the shield plate and bearing inside the exhaust duct, A movable block which is rotatably installed at a lower portion of the upper body to open the exhaust duct and which is connected to the movable block by a hinge and is exposed to the front of the upper body, And a pressing rod for rotating the movable block.

The movable block includes a protruding portion protruding toward the bottom surface of the shield plate, a seam portion formed at the lower end of the protruding portion and having hinge pins formed on both side ends thereof for pivotal rotation with the wall surface of the exhaust duct, And a leg portion connected to the pressing rod by a hinge.

It is preferable that a weight is formed on one side of the shield plate about the axis of the rotation axis, and a protrusion of the movable block is positioned directly below the weight.

Preferably, the combustion chamber is formed with a re-burner duct connecting the exhaust duct and the discharge port, and the combustion gas exhausted through the exhaust duct is supplied to the discharge port through the re-burner duct and burned.

The circulation duct may be annular, and the combustion chamber may be located at the center of the circulation duct.

Preferably, the combustion chamber forms a step with an inner circumferential surface of the combustion chamber facing the door, and a front bulkhead communicating with the combustion space is formed.

At this time, the front bulkhead has a side duct extending to the inside of the combustion space along the inner side surface of the combustion chamber, and a plurality of exhaust holes are formed on the surface of the side duct so that air in front of the combustion chamber flows into the combustion space It is preferable to supply them.

In addition, the upper body is provided with an inlet portion through which external air flows into a lower portion of a front side thereof, and a sliding damper for controlling an inflow amount of external air is installed in the inlet portion.

Preferably, the inflow portion communicates with the bottom duct disposed on the bottom and the backside of the combustion chamber, and the outside air supplied through the inflow portion is discharged from the back surface of the combustion chamber to the combustion space.

At this time, the bottom duct has an inlet hole through which external air flows into the front face of the combustion chamber, and the inlet hole has an inlet hole damper for controlling supply of air introduced through the bottom duct to the front face of the combustion chamber .

Preferably, the bottom duct communicates with the discharge port of the combustion chamber, and the external air supplied to the bottom duct is discharged through a discharge hole formed in the side wall of the discharge port.

According to the stove according to the present invention, the intake air outside the hearth is forcedly drawn by the intake fan formed on the lower body, and the air is discharged to the front of the upper body through the heating pipe provided on the movement path through which the combustion gas passes, Can be rapidly heated.

The present invention is characterized in that an upper body for circulating a combustion gas around a combustion chamber is provided so that heat is released to the combustion chamber and the surface of the upper body, So that the periphery of the stove can be rapidly heated by the increased heat generating area.

Further, according to the present invention, even when the door is opened, the exhaust damper unit installed in the exhaust duct is actively opened or closed according to the opening and closing of the door, so that the combustion gas is not discharged toward the user through the front surface of the combustion chamber.

In addition, the present invention can completely combust the incomplete combustion gas staying in the combustion chamber through the re-burner duct, thereby maximizing the energy efficiency of the fuel and minimizing the amount of discharged smoke to the outside, It is possible to prevent contamination.

1 is a sectional view showing a conventional fireplace.
2 is a perspective view showing a fireplace according to the present invention.
3 is an exploded perspective view showing a fireplace according to the present invention.
4 is a front view showing a fireplace according to the present invention.
5 is a sectional view taken along line AA in Fig.
6 is a perspective view showing a first embodiment of an exhaust damper unit installed in an exhaust duct in a hearth according to the present invention.
7 is a perspective view showing a second embodiment of an exhaust damper unit installed in an exhaust duct in a hearth according to the present invention.
8 is a sectional view taken along line BB of Fig.
FIG. 9 is a cross-sectional view showing the path of the external air through the inflow part of the stove according to the present invention.
FIG. 10 is a cross-sectional view showing a movement path of combustion gas generated in a combustion chamber of a fireplace according to the present invention.
11 is a cross-sectional view showing a path of incomplete combustion gas by a recirculation duct in a hearth according to the present invention.
12 is a sectional view showing the operation of the exhaust damper unit according to the second embodiment.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

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

FIG. 2 is a perspective view showing a fireplace according to the present invention, FIG. 3 is an exploded perspective view showing a fireplace according to the present invention, and FIG. 4 is a front view showing a fireplace according to the present invention.

The stove according to the present invention includes a combustion chamber 100 having a combustion space 120 in which a fuel is combusted, an upper body 200 having a circulation duct 210 surrounding a periphery of the combustion chamber 100, A heating tube 300 penetrating the inside of the circulating duct 210 and a lower body 400 for supplying external air to the heating tube 300. [

In other words, the combustion chamber 100 has a cylindrical shape whose one side is opened, and a combustion space 120 is formed in which fuel is charged and combusted. At this time, the combustion space 120 may not be thermally deformed at a high temperature such as a refractory brick, and may be finished with a refractory material having a thermal insulation effect.

A door 110 pivoted by a hinge is provided at one opened side of the combustion chamber 100 to open and close one side of the combustion chamber 100 by the door 110 to open the combustion chamber 100 The door 110 is controlled by the door 110. The door 110 has a circular shape in conformity with one side of the combustion chamber 100 and is provided with a heat-resistant glass for checking the state of the combustion space 120 from the outside.

A handle 111 is provided at a side of the door 110 in accordance with the curvature of the door 110 so as to open and close the door 110 by pulling the handle 111. The handle 111 is formed such that a wire having a predetermined diameter forms an arc in accordance with the side end curvature of the door 110. The tip of the handle 111 protrudes from the front surface of the door 110 and protrudes from the rear surface, ).

The handle 111 can be hermetically closed from the side edge of the door 110 or away from the side edge of the door 110 by rotating the handle 111 so that the user can easily grasp the handle 111 do.

An engagement groove 102 is formed in the front of the combustion chamber 100 in correspondence with the claw 112 protruding from the rear surface of the door 110 so that the door 110 faces the front surface of the combustion chamber 100 When the handle 111 is brought into close contact with the side of the door 110 in a state in which the door 110 is in contact with the door 110, the catch 112 is caught in the catching groove 102, It is not opened.

On the contrary, when the handle 111 is rotated away from the side of the door 110, the catch 112 is released from the catching groove 102 and the door 110 can be opened.

A front partition 170 is formed on the inner side of the front surface of the combustion chamber 100 so as to face the door 110. The front partition 170 is shaped like a ring to form a step with the inner circumference of the combustion chamber 100 .

That is, the front bulkhead 170 is formed with an entrance hole 173 communicating with the combustion space 120 at the center thereof, so that the fuel is charged into the combustion space 120 through the entrance hole 173, Outside air of the stove for combustion of the fuel is supplied through the inlet / outlet hole 173 through the inlet 180 formed in the lower portion of the front face of the combustion chamber 100.

When the front bulkhead 170 forms a step with the inner circumferential surface of the combustion chamber 100 as described above, the fuel or combustible material charged into the combustion space 120 flows into the combustion chamber 100 through the inlet / It is possible to prevent pouring to one side.

The front partition 170 formed on the inner circumferential surface of the combustion chamber 100 guides the outside air so that the outside air supplied through the inflow portion 180 described later can be smoothly supplied to the inside of the combustion space 120 A side duct 171 is formed.

The side duct 171 extends through the front partition wall 170 and extends inwardly of the combustion space 120 along the inner circumferential surface of the combustion chamber 100 so that the front partition 170 and the door 110 are moved to the inside of the combustion chamber 100 along the side ducts 171.

A plurality of exhaust holes 172 are formed on the surface of the side duct 171 so that external air guided by the side duct 171 is discharged into the combustion space 120 through the exhaust hole 172, Thereby supplying necessary oxygen.

On the other hand, an exhaust duct 140 and a discharge port 130 are formed in the upper and lower portions of the combustion chamber 100, respectively. This will be described with reference to FIG.

5 is a sectional view taken along the line A-A in Fig. The exhaust duct 140 exhausts the combustion gas generated when fuel such as wood or pellets is burned in the combustion space 120 to the outside of the combustion chamber 100, Is formed to discharge the combustion gas generated in the combustion space 120 and the ash generated after the combustion of the fuel.

The combustion chamber 100 is installed at the center of the upper body 200 having an annular shape as a whole and the combustion gas discharged through the discharge port 130 of the combustion chamber 100 is disposed around the combustion chamber 100 And flows into the circulating duct 210.

When the upper body 200 has an annular shape and the circulation duct 210 is formed so as to surround the periphery of the combustion chamber 100, the space occupied by the stove is minimized by minimizing the volume of the stove, It is possible to maximize the contact area between the combustion gas exhausted from the exhaust duct 210 and the circulating duct 210, thereby maximizing the exothermic area as compared with the volume occupied by the hearth,

When the upper body 200 has an annular shape, the combustion gas flowing into the circulation duct 210 in the combustion chamber 100 can be convected along the surface of the circulating duct 210 having a constant curvature, So that an even heat release effect can be obtained over the entire upper body 200.

At this time, the circulation duct 210 formed in the upper body 200 has the same annular shape as the upper body 200, and the combustion chamber 100 is positioned at the center thereof. As shown in the drawing, the circulating duct 210 may have the same shape as a ring, but the upper body 200 may have a polygonal shape such as a square, a pentagon, a hexagon, etc., The circulating duct 210 may be formed in a circular shape having a polygonal shape such as a square, a pentagon, a hexagon, or the like.

As described above, the upper body 200 is annular like a donut as a whole. The combustion chamber 100 is mounted on the center of the upper body 200, and a flue 220 communicating with the flue is formed on the upper part of the outer circumference of the upper body 200 And an inspection port 230 is formed in the upper right room of the exhaust duct 140 described below.

The detachable cover 240 is attached to the inspection port 230 so that the cover 240 is detached from the inspection port 230 if necessary so that the state of the exhaust duct 140 and the state of the exhaust duct 140 attached to the inside surface of the circulating duct 210 Foreign substances and the like are removed.

An upper portion of the combustion chamber 100 and an upper portion of an inner circumferential surface of the upper body 200 are connected by an exhaust duct 140. A lower portion of the combustion chamber 100 and a lower portion of an inner circumferential surface of the upper body 200 are connected to a discharge port 130, Lt; / RTI >

The exhaust duct 140 connects the combustion chamber 100 and the circulating duct 210 and serves as a passage through which the combustion gas generated in the combustion chamber 100 flows into the circulating duct 210, An exhaust damper unit 150 for regulating the exhaust amount of the combustion gas is provided in the duct 140 and the combustion gas introduced into the circulation duct 210 from the combustion chamber 100 according to the degree of opening of the exhaust damper unit 150 Thereby controlling the displacement of the engine.

For example, the exhaust damper unit 150 installed in the exhaust duct 140 may be operated by a user's operation, but the exhaust damper unit 150 may operate according to the opening and closing of the door 110. This will be described with reference to FIGS. 6 and 7. FIG.

6 is a perspective view showing a first embodiment of an exhaust damper unit installed in an exhaust duct in a hearth according to the present invention. The exhaust damper unit 150 according to the first embodiment comprises a shielding plate 151, a rotating shaft 152, and an adjusting lever 153.

The shield plate 151 is formed of a plate having a shape conforming to the exhaust duct 140 by interrupting the inside of the exhaust duct 140 and interrupting exhaust of the combustion gas. The rotary shaft 152 is formed at one side and the other side of the shielding plate 151 so as to be supported by the inside of the exhaust duct 140 so that the shielding plate 151 is rotatable about the rotation axis 152 in the inside of the exhaust duct 140 . The control lever 153 is exposed to the front of the upper body 200 in a state of being connected to the rotary shaft 152 and is operated by the user.

Accordingly, the exhaust damper unit 150 according to the first embodiment rotates the control lever 153 in the same direction as the control lever 153 by rotating the control lever 153 to the left and right, The amount of displacement of the combustion gas moving from the combustion chamber 100 to the circulation chamber 210 can be adjusted by rotating the shield plate 151 located inside the combustion chamber 100 from the left to the right.

In this way, the exhaust damper unit 150 controlled by the user controls the exhaust damper unit (not shown) before opening the door 110 which has closed the front face of the combustion chamber 100 while the combustion is occurring in the combustion chamber 100 150 is operated by the user to open the exhaust duct 140 so that the combustion gas staying in the combustion chamber 100 is exhausted through the exhaust duct 140. By opening the door 110 in this state , It is possible to prevent the combustion gas and the heat from being discharged toward the user, thereby preventing the user from burning or discharging the combustion gas to the outside of the stove without desire.

7 is a perspective view showing a second embodiment of an exhaust damper unit installed in an exhaust duct in a hearth according to the present invention. The exhaust damper unit 150 according to the second embodiment comprises a shielding plate 151, a rotating shaft 152, a movable block 154, and a pressing rod 155.

The shielding plate 151 of the second embodiment is formed of a plate having a shape conforming to the exhaust duct 140 by interrupting the exhaust of the combustion gas interrupted inside the exhaust duct 140 as in the first embodiment described above do. The rotary shaft 152 is formed at one side and the other side of the shield plate 151 in the same manner as the first embodiment so as to be supported inside the exhaust duct 140 so that the shield plate 151 rotatably supports the rotary shaft 152 And is rotated in the exhaust duct 140.

The movable block 154 is rotatably supported by the lower portion of the shield plate 151 and is supported by the exhaust duct 140 so that the shield plate 151 is pushed upward to open the exhaust duct 140.

The movable block 154 includes a protrusion 154a protruding toward the bottom surface of the shield plate 151 and a hinge pin formed at the lower end of the protrusion 154a and pivotally connected to the wall surface of the exhaust duct 140 at both sides thereof. And a leg portion 154c formed at a lower portion of the seesaw portion 154b and connected to the pressing rod 155 by a hinge.

The pressing rod 155 is exposed to the front surface of the upper body 200 in a state where the pressing rod 155 is hingedly connected to the leg portion 154c of the movable block 154 to open and close the door 110 installed on the front surface of the combustion chamber 100 The push rod 155 is retracted to rotate the movable block 154 so that the projection 154a pushes the shield plate 151 and rotates to open the exhaust duct 140. [

The weight 151a is formed on one side of the axis of the rotary shaft 152 and the protrusion 151a of the movable block 154 is directly below the weight 151a formed on the shield plate 151 The shielding plate 151 is rotated by the weight of the weight 151a when the door 110 is opened and the pressing rod 155 is free as shown in FIG. .

Conversely, when the door 110 is closed, the door 110 presses the pressing rod 155 to retract the pressing rod 155. When the pressing rod 155 retracts, the door 110 is hingedly connected to the pressing rod 155 The leg portion 154c is also retracted to rotate the movable block 154. [

When the movable block 154 rotates, the projecting portion 154a of the movable block 154 directly below the weight 151a pushes up the shielding plate 151 to close the exhaust duct 140, To the circulation chamber 210 through the exhaust duct 140. [0064]

According to the exhaust damper unit 150 according to the second embodiment, the exhaust damper unit 150 opens or closes the exhaust duct 140 as the user opens and closes the door 110, The gas and the heat are discharged through the front face of the combustion chamber 100 to prevent the user from burning or discharging the combustion gas to the outside of the hearth unintentionally.

The discharge port 130 connecting the lower portion of the combustion chamber 100 and the lower portion of the inner circumferential surface of the upper body 200 is opened toward the front surface of the combustion chamber 100 provided with the door 110, The user can observe the flame state of the discharge port 130 or the moving state of the combustion gas through the observation window 132. [

The observation window 132 is preferably made of the same material as the heat-resistant glass provided on the door 110. At this time, the observation window 132 has a structure in which one side of the observation window 132 is hinged to the discharge port 130 and rotated about the hinge so that the observation window 132 can be opened as needed. Therefore, when the discharge port 130 is opened by rotating the observation window 132, it is possible to easily remove the impurities such as the material loaded on the discharge port 130.

The lower part of the upper body 200 is provided with a receptacle 500 communicating with the discharge port 130. The ash receiver 500 has a drawer structure that slides on the lower portion of the upper body 200. The ash generated after the combustion in the combustion space 120 is dropped into the ash receptacle 500 through the discharge port 130, Can be collected.

As shown in the figure, the ash receiving part 500 is formed by cutting a part of the lower part of the upper body 200 to form a circular shape when the upper body 200 is viewed from the front, The receiver 500 may have a drawer structure protruding from the lower portion of the upper body 200.

A discharge port stopper 135 having a grill shape is disposed in an upper portion of the discharge port 130. The discharge port stopper 135 has a shape of a rectangular frame having an area larger than that of the discharge port 130 formed in the combustion chamber 100 A plurality of pins are arranged and fixed on the upper portion of the frame.

Accordingly, the combustion gas moves to the discharge port 130 through the space formed between the pin and the fin and flows into the circulating duct 210 formed in the upper body 200, and the burned material is accumulated on the discharge port stopper 135 .

An inlet portion 180 through which external air flows is formed in the lower portion of the front surface of the combustion chamber 100 so that the external air introduced into the inlet portion 180 passes through the inlet and outlet holes 173 and 173 of the front partition 170, And is supplied to the combustion space 120 through the duct 171.

That is, as shown in the drawing, the inflow portion 180 is partially cut out of the lower portion of the front face of the combustion chamber 100 so that the outside air of the combustion chamber 100 can be supplied to the combustion space 120 through the inflow portion. And a sliding damper 181 for adjusting the inflow amount of outside air is installed inside the inflow portion 180 so as to intermittently inflow the outside air.

The inlet portion 180 communicates with the bottom duct 190 disposed on the bottom and the backside of the combustion chamber 100 as shown in FIG. 11 so that external air supplied through the inlet 180 flows into the combustion chamber 100, To the combustion space (120). The bottom duct 190 has an inlet hole 191 through which external air flows into the front face of the combustion chamber 100. An inlet hole damper 192 is installed in the inlet hole 191 to connect the bottom duct 190 to the bottom duct 190. [ So that the air introduced into the combustion chamber 100 is supplied to the front face of the combustion chamber 100.

The bottom duct 190 communicates with the discharge port 130 of the combustion chamber 100. When the bottom duct 190 and the discharge port 130 are communicated with each other, the external air supplied to the bottom duct 190 is discharged to the discharge port 130, So that external air can be supplied to the discharge port 130. A plurality of injection holes 131 are formed in the side wall of the discharge port 130 so that the external air moved along the bottom duct 190 is discharged into the discharge port 130 through the spray hole 131, It is possible to smoothly supply oxygen for combustion to the inside.

The combustion gas generated in the combustion chamber of the combustion chamber 100 flows into the circulation duct 210 formed in the upper body 200 through the discharge port 130 to heat the upper body 200 And the heated upper body 200 emits heat to the surroundings.

That is, the circulating duct 210 has a structure in which all parts except the discharge port 130 and the exhaust duct 140 are shielded. The combustion gas introduced into the discharge port 130 flows into the circulation duct 210 and then is circulated through the upper body 200 through the flue 220 provided at the upper rear of the upper body 200 after heat exchange in the circulation duct 210. [ 200, the heat exchange area of the stove can be increased, and the temperature around the stove can be quickly raised.

At the same time, the combustion chamber 100 is formed with the reburn duct 160 so as to re-burn the incomplete combustion gas to improve energy efficiency. The reburn duct 160 is disposed to connect the exhaust duct 140 and the discharge port 130. The reburn duct 160 preferably extends rearward of the exhaust duct 140 And extend from the top to the bottom of the combustion chamber 100 and extend from the bottom of the rear surface of the combustion chamber 100 toward the discharge port 130.

When the reburn duct 160 is formed on the rear surface of the combustion chamber 100 as described above, the combustion gas exhausted through the exhaust duct 140 flows into the discharge port 130 through the re-burner duct 160, The incomplete combustion gas is mixed with the high-temperature combustion gas flowing into the circulation duct 210 through the circulation duct 210 to completely burn the incomplete combustion gas in the high-temperature combustion gas, thereby maximizing the energy efficiency of the fuel, The amount of the smoke discharged to the outside through the flue 220 formed in the upper body 200 can be minimized.

Meanwhile, a hollow heating pipe 300 is installed in the circulation chamber 210. This will be described with reference to FIG.

8 is a sectional view taken along line B-B in Fig. The heating pipe 300 has a hollow pipe shape and is installed inside the circulation duct 210 in the same direction as the axis of the combustion chamber 100. That is, the front end of the heating tube 300 communicates with the front surface of the upper body 200, and the base end of the heating tube 300 communicates with the supply duct 431 formed in the lower body 400.

The air outside the stove sucked by the suction fan 410 installed in the lower body 400 is forcibly supplied to the heating tube 300 installed in the circulation chamber 210 through the supply duct 431, The air is heated while passing through the heating tube 300 to supply warm air to the front of the upper body 200.

The lower body 400 for forcibly supplying the air outside the hearth to the heating tube 300 is installed at a lower portion of the upper body 200 to support the upper body 200 so as to separate the upper body 200 from the ground, And the air is supplied to the heating pipe 300 through the suction fan 410 installed inside the furnace.

The lower body 400 includes a base 420 having a flat shape contacting the ground and a vertical portion 430 extending vertically from the upper portion of the base 420 toward the lower rear surface of the upper body 200 , And an intake fan (410) for sucking outside air into the vertical part (430). The vertical duct 430 is formed with a supply duct 431 which communicates with the heating pipe 300 and guides the outside air sucked from the suction fan 410 to the heating pipe 300.

The operation of the stove according to the present invention having the above-described configuration will be described with reference to Figs. 9 to 11. Fig.

FIG. 9 is a cross-sectional view showing the path of the external air through the inflow part of the stove according to the present invention. In order to operate the stove, fuel such as firewood, charcoal, pellets, and coal is first charged into the combustion space 120 of the combustion chamber 100, and then the door 110 is closed. At this time, the exhaust duct 140 formed in the upper portion of the combustion chamber 100 is closed by the exhaust damper unit 150.

The sliding damper 181 and the inlet hole damper 192 of the inlet portion 180 are opened to allow external air to flow into the combustion chamber 100. In order to smoothly supply oxygen to the interior of the combustion chamber 100, 100).

10, a part of the external air supplied through the inflow portion 180 is guided to the backside of the combustion chamber 100 through the bottom duct 190 and is discharged into the combustion space, 190 are discharged through a spray hole 131 formed in the side wall of the discharge port 130. [

The external air supplied through the inflow portion 180 flows into the space between the door 110 and the front partition 170 through the inflow hole 191 of the bottom duct 190 and a part of the air is introduced into the front partition 170 The remaining outside air is guided by the side duct 171 and discharged into the combustion space through the exhaust hole 172 to activate the combustion of the fuel.

In this case, the combustion damper 181 is closed to shut off the inflow of outside air, or when the sliding damper 181 is closed, The degree of opening of the inflow hole damper 192 with respect to the inflow hole 191 is adjusted after opening the inflow hole 181 to adjust the degree of combustion in the combustion space 120 according to a user's desired situation.

As described above, when the fuel is burned in the combustion chamber 100, combustion gas is generated. The circulation of the combustion gas will be described with reference to FIG.

FIG. 10 is a cross-sectional view showing a movement path of combustion gas generated in a combustion chamber of a fireplace according to the present invention. Referring to the drawings, when fuel is ignited in the combustion chamber 100, combustion gas is generated according to the combustion of the fuel and is discharged through the discharge port 130 formed in the lower portion of the combustion chamber 100.

The combustion gas discharged through the discharge port 130 moves along the circulation duct 210 formed in the upper body 200 to heat the periphery of the combustion chamber 100. At this time, the combustion gas moving along the circulating duct 210 heats the heating tube 300 while coming into contact with the heating tube 300 passing through the circulating duct 210, Exchanged with the external air supplied to the heating tube 300 by the suction fan 410 installed in the lower body 400 to discharge the hot air to the front of the upper body 200.

The flue gas heat exchanged with the heating pipe 300 moves along the flue 220 formed on the upper part of the upper body 200 and the flue gas introduced into the flue 220 is discharged to the flue 220 connected to the flue 220 And is exhausted to the outside of the stove.

11 is a cross-sectional view showing a path of incomplete combustion gas by a recirculation duct in a hearth according to the present invention. The incomplete combustion gas staying in the upper part of the combustion space 120 among the combustion gases to be transferred to the circulation chamber 210 of the upper body 200 through the discharge port 130 is discharged through the reheated duct 140 communicated with the exhaust duct 140 160, and is discharged through the discharge port 130.

The incomplete combustion gas discharged through the discharge port 130 is mixed with the high-temperature combustion gas flowing into the circulation duct 210 from the combustion chamber 100, and the incomplete combustion gas is introduced into the circulation duct 210 in a state where the incomplete combustion gas is completely burned So that the circulating duct 210 and the heating tube 300 are heated and discharged to the outside of the stove through the flue 220.

In the stove according to the present invention, the air outside the hearth is forcedly drawn by the intake fan 410 formed in the lower body 400, and the upper body 200 So that the periphery of the hearth can be heated up quickly, and as a result, the same effect as that of the dry heater can be obtained.

Even if the exhaust damper unit 150 installed in the exhaust duct 140 is actively opened or closed to open the door 110 according to the opening and closing of the door 110, So that safety accidents can be prevented.

In addition, since the incomplete combustion gas staying in the combustion chamber 100 can be completely burned through the re-burning duct 160, the energy efficiency of the fuel can be maximized and the amount of the exhausted smoke can be minimized, It is possible to prevent the environmental pollution caused by the water.

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 exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

100: combustion chamber 102:
110: door 111: handle
112: Catch 120: Combustion space
130: Discharge port 131: Discharge hole
132: Observation window 135:
140: exhaust duct 150: exhaust damper unit
151: shield plate 151a: weight
152: rotation shaft 153: control lever
154: movable block 154a:
154b: seesaw part 154c:
155: pressurizing rod 160: reheat duct
170: front bulkhead 171: side duct
172: exhaust hole 173: entrance hole
180: inlet portion 181: sliding damper
190: bottom duct 191: inlet hole
192: inlet hole damper 200: upper body
210: Circular duct 220: Year
230: check port 240: cover
300: heating tube 400: lower body
410: intake fan 420: base
430 vertical section 431 supply duct
500: ash tray

Claims (8)

A combustion chamber in which a fuel is burnt through an opened side where a door is installed and a discharge port for discharging combustion gas and ashes to a lower portion of the combustion space;
An upper body formed with a circulation duct for guiding the combustion gas around the combustion chamber through the discharge port to the periphery of the combustion chamber and for discharging the combustion gas guided by the circulation duct to the outside; And
And a heating pipe installed to penetrate the inside of the circulation duct and having a front end communicated to the upper body and discharging the air heated by the combustion gas guided by the circulation duct to the front of the upper body,
The upper body is heated by the waste heat of the combustion gas flowing into the combustion chamber through the circulation duct and passing through the interior of the circulation duct as the circulation duct is separated from the combustion chamber,
The combustion chamber
Wherein a front bulkhead is formed which forms a step with an inner circumferential surface of the combustion chamber facing the door and communicates with the combustion space.
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