KR20160067328A - Wood pellet stove - Google Patents

Abstract

The present invention provides a pellet stove that can facilitate ignition by generating an ascending air current, can easily control firepower through control of an amount of supplied pellets, and can achieve excellent heating efficiency by complete combustion. For this purpose, the pellet stove includes a combustion portion having an upper portion opened to receive pellets, and having a combustion room provided in a lower portion, an exhaust portion having a connecting pipe formed in an upper portion to externally emit combustion gas generated by the combustion room, having an ash receiver provided on a lower portion, and disposed lower than the combustion portion, a first connecting pipe connected between the combustion room and the exhaust portion to be downwardly inclined such that ashes from the combustion room can move to the ash receiver, and a second connecting pipe connected between the combustion room and the exhaust portion to be upwardly inclined such that combustion gas from the combustion room can be emitted externally through the connecting pipe. According to the technical configuration as described above, ignition can be facilitated by generating an ascending air current, firepower can be easily controlled through control of an amount of supplied pellets, and excellent heating efficiency can be achieved by complete combustion. Furthermore, according to the present invention, the flow of combustion gas can be controlled through the first connecting pipe downwardly installed and the second connecting pipe upwardly installed, thus increasing a thermal exchange rate and easily treating ashes remaining in the combustion room. Further, the components can be fitted to each other or can be manufactured in an assembly form to be able to be screwed, thus facilitating conveyance and storage.

Description

Pellet stove {WOOD PELLET STOVE}

The present invention relates to a pellet stove, and more particularly, to a pellet stove capable of easily igniting due to the generation of a rising air stream and easily controlling a thermal power through adjustment of a supply amount of pellets,

In general, wood pellets are produced by compression molding wood by-products, and are recently used as heating fuels instead of kerosene, gas, and briquettes.

Japanese Patent Application Laid-Open No. 10-1205642 (published on November 27, 2012) relates to a non-powered heater, which includes a combustion unit having a combustible material to be combusted by a flame therein; A discharge unit for discharging the combustion gas generated when the combustible contained in the combustion unit is combusted to the outside; The upper portion of one side is connected to the combustion portion and the other portion of the lower portion is connected to the discharge portion so as to communicate with the inner load side of the discharge portion so as to communicate with the upper inside of the combustion portion and arranged in a zigzag manner at regular intervals in the vertical direction between the combustion portion and the discharge portion And a guide portion for zigzagging the combustion gas generated inside the combustion portion from the upper side of the combustion portion to the inner lower side of the discharge portion, wherein the combustion gas generated in the upper side of the combustion portion flows through the guide portion into the lower side And a heat exchange space communicating with the outside is formed between the guide portions and the other guide portions adjacent to the guide portion.

[0002] JP-A-10-1291402 (published on Mar. 3, 2013) discloses a non-powered pellet furnace in which a hopper to which pellets are fed is mounted on a furnace body having a combustion chamber, The combustion chamber is equipped with a combustion network at the lower end of the injection port, and the pellets are loaded on the upper side of the combustion net so that the burned pellets drop down to the lower side to continuously burn the combustion chamber. At the lower end of the combustion net, And the auxiliary furnace network is controlled by the operation of a control rod drawn out to the outside of the stove main body while slidingly inserted into the mounting rail to control the supply amount of the pellet.

According to the above technical arrangement, in the conventional stove, a guide portion (heat radiation tube) is provided in a horizontal state between a combustion portion and a discharge portion (exhaust passage), and smoke generated in the combustion portion during combustion is discharged to the outside .

However, in the conventional stove, when ignition is performed in a state that the body is not warmed up, an upward flow is not generated in the discharge portion (exhaust passage) so that the smoke can not easily escape to the outside. In particular, There is a problem in that it is difficult to ignite such as stagnation of smoke in the body toward the fuel injection port side.

In addition, in the conventional stove, a fuel (pellet) is supplied to a seating part (network) having a net shape and is burned, and charcoal dropped through the seat part during combustion is accommodated in the foreign substance accommodating part. At this time, There is a problem of incomplete combustion which is left unattended because the heat required for this combustion is no longer supplied.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a pellet stove which is easy to ignite by controlling the amount of pellets supplied,

In order to solve the above-described problems, the present invention provides a fuel cell system including a combustion unit having an upper portion opened to receive pellets and having a combustion chamber at a lower portion thereof, a communication connecting pipe formed at an upper portion thereof for discharging combustion gas generated in the combustion unit to the outside A first connecting pipe provided with a refractory at a lower portion and disposed lower than the combustion portion, a first connecting pipe communicating with the combustion chamber and the exhaust portion in a downward sloping manner so as to be movable to the ash receiving chamber of the combustion chamber, And a second connection pipe communicated upwardly between the combustion chamber and the exhaust part so as to escape to the outside.

The combustion unit is characterized in that a hopper for supplying pellets to the upper portion is provided.

The combustion chamber is characterized in that the bottom is inclined to the ash receiving side and the grill is installed so that the pellets do not flow down to the first connection pipe.

The first connection pipe and the second connection pipe are each provided with a valve for opening and closing a pipe line.

The combustion unit is provided with a door for opening the combustion chamber on the front surface, and the door is provided with an air amount adjusting hole for adjusting the amount of air flowing into the combustion chamber.

The combustion unit is characterized in that the bottleneck member through which the pellet passes can be elevated so as to control the thermal power by varying the combustion chamber space.

According to the present invention, it is easy to ignite due to the generation of a rising air flow and to control the thermal power through adjustment of the pellet supply amount, and the heating efficiency of the complete combustion furnace is excellent.

According to the present invention, the flow of the combustion gas is controlled through the first connection pipe installed downwardly inclined and the second connection pipe installed upwardly inclined, thereby increasing the heat exchange rate and easily handling the ashes remaining in the combustion chamber.

In addition, according to the present invention, since each component is manufactured in a prefabricated form so as to be fitted to each other or screwed together, it is easy to carry and store.

1 is a perspective view of a pellet stove according to the present invention,
2 is a partial sectional view showing the internal structure of a pellet stove according to the present invention,
3 is an exemplary view of a bottleneck member according to the present invention.

Hereinafter, a preferred embodiment of the pellet stove according to the present invention will be described in detail with reference to FIGS.

First, according to the embodiment of the present invention, a combustion unit 10 having an upper portion opened to receive pellets and provided with a combustion chamber 11 at a lower portion thereof, a combustion chamber 10 provided at a lower portion thereof for discharging the combustion gas generated in the combustion portion 10 to the outside, An exhaust unit 20 having a communication connection pipe 21 at a lower portion thereof and a ash receiving unit 30 at a lower portion thereof and disposed lower than the combustion unit 10 so that the ash of the combustion chamber 11 can be moved to the ash receiving unit 30 A first connecting pipe 40 communicating with the combustion chamber 11 and the exhaust unit 20 in a downward sloping manner and a second connecting pipe 40 connecting the combustion chamber 11 and the combustion chamber 11 so that the combustion gas in the combustion chamber 20 can escape to the outside through the communication connection pipe 21. [ And a second connection pipe (50) communicated upwardly and slantly between the exhaust part (20). Reference numerals 1 and 1 'denote bridges for supporting the stove body composed of the combustion section 10, the exhaust section 20, and the like.

The first connection pipe 40 is disposed between the combustion unit 10 and the exhaust unit 20 so that the first connection pipe 40 is downwardly inclined and communicated with the exhaust pipe 20, 2 connection pipe 50 is installed so as to be upwardly inclined.

The first connection pipe 40 is installed between the combustion chamber 11 and the exhaust unit 20 of the combustion unit so as to be inclined downwardly so that the asbestos discharged from the combustion chamber 11 moves toward the ash receiving unit 30 of the exhaust unit . The ashtray (30) is implemented as a drawable drawable form.

Particularly, when the combustion gas generated in the combustion chamber 11 is discharged to the outside through the communication connection pipe 21 through the exhaust pipe 20 through the first connection pipe 40, And the high temperature heat necessary for the combustion is continuously supplied to the char which is discharged from the combustion chamber 11 and moves to the ashtray 30 side, thereby completing the complete combustion.

The second connecting pipe 50 is installed between the combustion chamber 11 and the exhaust unit 20 of the combustion unit so as to be upwardly inclined so that the combustion gas generated in the combustion chamber 11 flows through the exhaust unit 20, And is discharged to the outside through the pipe (21).

At this time, as the second connection pipe 50 is inclined upward, the combustion gas generated in the combustion chamber 11 does not flow backward but gradually rises along the second connection pipe 50 and flows smoothly through the communication connection pipe 21 .

When the ash tray 30 is provided at the lower end of the exhaust unit 20 to generate a rising airflow in the exhaust unit 20 by burning the pellets from the ash tray 30 or a small amount of pellets, The air in the combustion chamber 11 is sucked out through the second connection pipe 50, thereby facilitating ignition.

Next, the combustion unit 10 is provided with a hopper 60 for supplying pellets to the upper portion thereof.

The hopper 60 is detachably installed on the upper portion of the combustion unit 10 and is provided with a shut-off plate 61 so as to be able to open and close the outlet.

When the blocking plate 61 is opened, the pellets in the hopper 60 are supplied to the combustion chamber 11 by their own weight as the pellets are burnt in the combustion chamber 11.

Thus, heating can be performed until the pellets in the furnace hopper 60 are exhausted.

Next, the combustion chamber (11) is provided with a grill (70) such that the bottom is inclined toward the base (30) side and the pellet does not flow down to the first connection pipe (40).

That is, the grill 70 is a component for loading the pellets in the combustion chamber 11 and is formed in a net shape so as to be able to escape the remaining material after combustion, and is spaced apart from the bottom of the combustion chamber 11. [

In addition, the bottom of the combustion chamber 11 is inclined so that the bottom of the combustion chamber 11 can easily move toward the ash receptacle 30.

Next, the first connection pipe 40 and the second connection pipe 50 are provided with valves 41 and 51 for opening and closing the pipeline, respectively.

The first connection pipe 40 and the second connection pipe 50 are provided in the interior of the first connection pipe 40 and the second connection pipe 50. In the first connection pipe 40 and the second connection pipe 50, And an operation lever for rotating the plate is provided.

Accordingly, the conduits of the first connection pipe 40 and the second connection pipe 50 can be opened and closed according to the rotation of the plate.

The ducts of the first connection pipe 40 are closed and the ducts of the second connection pipe 50 are opened so that the smoke generated in the combustion chamber 11 is supplied to the second connection pipe And smoothly escapes to the outside through the communication connection pipe 21 via the exhaust part 20 along an ascending path formed by the exhaust pipe 50.

When the combustion is actively performed in the combustion chamber 11, a sufficient upward flow is generated in the exhaust part 20, so that the pipe of the first connection pipe 40 is opened and the pipe of the second connection pipe 50 is closed And 51 are operated so that the combustion gas generated in the combustion chamber 11 escapes to the outside through the communication connection pipe 21 via the exhaust part 20 along the descending path formed by the first connection pipe 40 .

As a result, the residence time of the combustion gas is prolonged, so that the heating capacity is improved and the ash can be moved by the combustion gas.

Next, the combustion unit 10 is provided with a door 80 for opening the combustion chamber 11 on its front surface. The door 80 is provided with an air amount adjusting hole (not shown) for adjusting the amount of air flowing into the combustion chamber 11 85 are provided.

Specifically, the front surface of the combustion chamber 11 is opened and a door 80 for opening and closing the opening is provided. The lower end of the door 80 is hinged to the combustion unit 10 and pulled forward to open.

In addition, the door 80 is provided with an air amount adjusting hole 85 through which air holes are drilled and the opening of the door 80 is controlled by rotation of the disk.

Therefore, the thermal power in the combustion chamber 11 can be controlled by adjusting the air inflow amount through the air amount control hole 85.

Next, the combustion unit 10 is provided with a bottleneck member 90 through which the pellets pass so that the space of the combustion chamber 11 can be varied and the thermal power can be controlled.

Specifically, the bottleneck member 90 narrows its outlet toward the bottom, and the pellet is introduced into the combustion chamber 11. [

At this time, the space between the lower end of the bottleneck member 90 and the grill 70 becomes the combustion chamber 11, and the size of the combustion chamber 11 is varied as the bottle neck member 90 is lifted and lowered in the combustion chamber 10 .

Accordingly, since the amount of pellets to be loaded varies depending on the size of the combustion chamber 11, the thermal power can be controlled by the bottleneck member 90.

The combustion unit 10 has a bolt hole 91 formed by extending the longitudinal hole 12 in the longitudinal direction and extending from the bottleneck member 90 and projecting outwardly of the combustion unit 10 through the long hole 12, The height of the bottleneck member 90 can be adjusted and fixed within the combustion unit 10 by fastening the butterfly nut 92 to the part 91. [ Reference numeral 95 is a window for confirming the combustion state.

The pellet stove according to the present invention is preferably manufactured in a prefabricated manner so that each component can be fitted or screwed into each other for easy transportation and storage.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims, I will make it clear to those who have.

10:
11: Combustion chamber
12:
20:
21: communication connector
30: ash tray
40: first connector
41, 51: Valve
50: second connector
60: Hopper
61:
70: Grill
80: Door
85: air-conditioner
90: bottleneck member
91: Bolt portion
92: butterfly nut

Claims (6)

A combustion unit having an upper opening and a lower combustion chamber provided so as to receive pellets,
An exhaust pipe having a communication connection pipe formed at an upper portion thereof for discharging the combustion gas generated in the combustion unit to the outside,
A first connection pipe communicated downwardly between the combustion chamber and the exhaust unit so that the ash of the combustion chamber can be moved to the refractory,
And a second connection pipe communicated upwardly between the combustion chamber and the exhaust unit so that the combustion gas in the combustion chamber can escape to the outside through the communication connection pipe. The method according to claim 1,
Wherein the combustion unit is provided with a hopper for supplying pellets to an upper portion thereof. The method according to claim 1,
Wherein the combustion chamber is provided with a grill so that the bottom is inclined toward the ash receiving side and the pellet does not flow down to the first connecting pipe. The method according to claim 1,
Wherein the first connection pipe and the second connection pipe are each provided with a valve for opening and closing a pipe line. The method according to claim 1,
Wherein the combustion unit is provided with a door for opening the combustion chamber on its front surface,
Wherein the door is provided with an air amount adjusting hole for adjusting the amount of air flowing into the combustion chamber. The method according to claim 1,
Wherein the combustion unit is provided with a bottleneck member through which the pellets pass so that the combustion chamber can be varied and the thermal power can be controlled.

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