KR101738592B1 - Pallet heater - Google Patents

Abstract

In the present invention, air curtains are formed at a portion where the pellets are supplied to the furnace by using a part of the air required for pellet combustion, so that the heat generated in the furnace is prevented from being transmitted to the pellets not supplied to the furnace, The present invention aims to provide a pellet stove that can prevent the fire from being transferred from the burning or burning of the furnace, thereby eliminating the safety accident in advance.
In addition, since the excess air in the air supplied to the furnace is not combusted but is discharged to the outside of the pellet furnace through the communication pipe, the pellets are burned safely and at a proper speed, There is another purpose of providing a pellet stove which can increase the temperature of the pellet.

Description

Pellet stove {PALLET HEATER}

The present invention relates to a pellet stove, and more particularly, to a pellet stove, and more particularly, it relates to a pellet stove, and more particularly to a pellet stove which is provided with a part of air supplied for burning pellets between an oven and a main body to form an air curtain, It is possible to prevent the remaining pellets from being carbonized or from generating a fire, and when excess air is supplied to the furnace, part of the air is discharged to the outside through the communication of the main body, so that the stove can be stably used .

Generally, a heater used for heating in a home can be divided into various types such as a gas stove, a fire stove, an oil stove, and a pellet stove depending on the fuel to be used. Among them, the firewood stove and the pellet stove are widely used since they can use unnecessary wood as a raw material and thus have a low fuel cost.

Particularly, since the pellet hearth is compacted in the form of a small lump with a diameter of about 1 to 3 cm, the pellet can be easily stored and the pellet can be stably secured. Such a pellet stove is developed and used in various configurations as in the following patent documents 1 to 4.

Patent Document 1 relates to a pellet stove, which includes a fuel portion in which fuel is stored and a combustion portion that receives fuel from the fuel portion and combusts the fuel, wherein the fuel portion is rotated by a motor And a fuel supply pipe for supplying fuel to the combustion section, the fuel being introduced from a hopper connected to the fuel tank, the combustion section being configured to receive the fuel discharged from the fuel supply pipe and to combust the contained fuel Wherein the fuel supply pipe is inclined at a predetermined angle so that the height of one end of the fuel discharged from the combustion unit is higher than the height of the other end.

Patent Document 2 includes a casing divided into a heat exchange space in which a gas discharge hole for discharging gas to the outside is formed; A pellet supply unit provided in the pellet feed space and supplied with pellets from the pellet feed hole; A pellet combustion unit provided at a lower portion of the heat exchange space and supplying pellets from the pellet supply unit and burning the pellets; A heat exchange pipe connecting the pellet combustion unit and the gas discharge hole and disposed in a zigzag form in the heat exchange space to transfer combustion gas generated in the pellet combustion unit and to perform heat exchange with the outside air; And an oven unit coupled to the path of the heat exchange tube and heating the food using the heat of the combustion gas.

Patent Document 3 relates to a pellet stove, which comprises: a casing formed in a shape of an enclosure and divided into a pellet feed space in which a pellet feed hole is formed and a heat exchange space in which a gas discharge hole for discharging a combustion gas to the outside is formed; A combustion chamber provided at a lower portion of the heat exchange space to burn pellets; A pellet supply unit provided at a lower portion of the pellet supply space and supplying the pellets introduced from the pellet injection hole to the combustion chamber; A pellet combustion unit provided in the combustion chamber for supplying pellets from the pellet supply unit and burning the pellets; A first moving pipe connected to the combustion chamber to exchange combustion gas generated during combustion of the pellets with the outside air; An oven unit connected to the first moving pipe and heating the food using the heat of the combustion gas; And a second moving pipe connected to the oven and discharging the combustion gas to the outside and exchanging heat with the outside air.

Patent Document 4 relates to a pellet furnace having a pellet supply device in which the backward flow of smoke is prevented. The pellet furnace includes a pellet storage portion in which pellets are stored, a combustion chamber in which a pellet combustion portion is provided at a bottom portion to burn the pellets, A main casing having a heat exchange tube for discharging the combustion gas generated during combustion to heat exchange with outside air; And a pellet supply device installed in the main casing and supplied with the pellets from the pellet storage part and supplying the pellets to the pellet combustion part, wherein the pellet supply device is formed in parallel to contact the combustion chamber, A pellet drop chamber communicating with a lower portion of the combustion chamber and having a zigzag curved flow path; And a transfer screw connected to the pellet storage unit to transfer the pellet to an open upper portion of the pellet drop chamber after receiving the pellet.

However, the conventional pellet stove has the following problems.

(1) the pellet is conveyed through a conveyance passage such as a screw and is inserted into the furnace at or above the furnace. Accordingly, the pellets transferred to the screw may be carbonized or cause a fire.

(2) In other words, the pellet stove does not feed pellets until a certain amount of pellets are put into the furnace and then the pellets are exhausted. For this reason, in the case of pellets near the furnace, the heat generated in the furnace may cause the pellets to become carbonized or ignite, leading to a fire.

(3) The inside of the hearth or pellet stove may be damaged, or heat may be transmitted to the outside of the pellet stove to cause a fire in the surroundings.

(4) Meanwhile, the conventional pellet furnace supplies air required for combustion in an oven through an air blower. If the supply air is too much, the pellets burn too quickly, which lowers thermal efficiency and increases the pellet consumption, It costs a lot.

Korean Unexamined Utility Model Publication No. 20-2014-0005597 (published on October 29, 2014) Korean Registration Practical Issue No. 0476340 (Registered on Feb. 20, 2015) Korean Registration Practical Issue No. 0476341 (Registered on Feb. 20, 2015) Korean Registered Patent No. 1529432 (Registered on May 10, 2015)

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an air curtain is formed at a portion where pellets are supplied to the furnace by using a part of air required for pellet combustion, thereby preventing heat generated in the furnace from being transferred to pellets not supplied to the furnace, The present invention provides a pellet stove that can prevent carbonization of the pellets in the waiting state and prevent the fire from being transferred from the hearth, thereby eliminating safety accidents in advance.

In addition, since the excess air in the air supplied to the furnace is not combusted but is discharged to the outside of the pellet furnace through the communication pipe, the pellets are burned safely and at a proper speed, There is another purpose of providing a pellet stove which can increase the temperature of the pellet.

In order to achieve the above object, a pellet stove according to the present invention comprises: a base 100 having a predetermined size and having a caster 110 so as to be able to be transported to the floor; A hollow body 200 mounted on the base 100 and having an oven 210 therein; A transfer screw 300 mounted on the base 100 to supply pellets to the furnace 210 from the outside of the main body 200; A hopper 400 mounted on the transport screw 300 to supply the pellets; And an air blower 500 installed in the base 100 to supply air to the furnace 210 from the outside of the main body 200. The air blower 500 is provided with air The main pipe 510 is connected to the main pipe 510 so that air can be formed between the main body 200 and the furnace 210 at a position where the pellets are dropped into the flue 210, And the main pipe 510 is connected to the branch pipe 520 through the communication pipe 220 and the communication pipe 220 is connected to the main pipe 510 through the communication pipe 220 of the main body 200, And an auxiliary pipe (511) for connection is formed.

Particularly, the main pipe 510 is further provided with an induction plate 512 to allow air to flow through the branch pipe 520.

Lastly, the branch pipe 520 is connected to the upper end of the feed screw 300 so as to form an air curtain downward from a position where the pellet drops into the furnace 210 through the feed screw 300, And a control unit.

The pellet furnace according to the present invention has the following effects.

(1) In an area where pellets are supplied to the furnace, an air curtain is formed between the main body and the furnace, and this air curtain blocks the heat generated in the furnace from being transferred to the pellet waiting for combustion.

(2) In addition to this, it is possible to solve the problem of carbonization of the pellets waiting for combustion or preheating thereof, and the pellets are burnt to the hopper to prevent a safety accident such as a fire in the vicinity of the pellet stove .

(3) Particularly, since the air curtain is formed by branching a part of the air used for burning the pellets in the furnace, safety accidents can be prevented in advance while minimizing the additional construction, which is economical.

(4) Since the air curtain can be formed by a simple design change in a pellet stove already installed and in use as well as a newly produced pellet stove, a pellet stove can be manufactured at a low cost and with enhanced safety.

(5) On the other hand, when the air supplied to the furnace is excessively supplied to burn the pellets, a part of the air can be discharged to the outside through the communication pipe, so that the pellets can be burned at a proper temperature and combustion speed, The efficiency can be increased.

FIG. 1 is a side view showing a state in which all components of a pellet stove according to the present invention are interconnected.
FIG. 2 is a plan view showing a structure of a pellet stove according to the present invention. FIG.
3 is a side view showing the flow of air in a pellet stove according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should properly define the concept of the term to describe its invention in the best possible way The present invention should be construed in accordance with the spirit and scope of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention. Thus, various equivalents And variations may be present.

(Configuration)

The pellet stove according to the present invention is a pellet stove according to the present invention which comprises a base 100, a main body 200 as a space for burning actual pellets, a feed screw 200 for feeding pellets to the main body 20, as shown in Figs. 300, a hopper 400 for supplying pellets, and an air blower 500 for supplying air necessary for pellet combustion in the main body 200.

Particularly, in the present invention, a part of the air of the air blower 500 is configured to form an air curtain between the main body 200 and the furnace 210 at a place where the pellets are introduced into the furnace 210, Can be prevented from being transferred to the pellets which have not been introduced into the furnace 210 to be carbonized or burned.

In addition, the present invention can prevent excess air from being discharged to the outside of the main body 200 through the communication, even when excess air is supplied to the furnace 210, Thereby increasing the efficiency.

Hereinafter, this configuration will be described in more detail.

The base 100 is formed to have a size such that other components can be mounted thereon, as shown in Fig. 1 and Fig. 2. At this time, it is preferable that the base 100 is provided with a caster 110, which is manufactured by a conventional technique, on the floor surface, and the pellet stove can be moved to a desired place and used conveniently.

As shown in FIG. 1 and FIG. 2, the main body 200 is manufactured in an hollow hollow form and mounted on the base 100, and the furnace 210 is installed inside the main body 200 to receive pellets therein . At this time, it is preferable that the furnace 210 is installed at the center of the inner bottom surface of the main body 200 so that heat generated when the furnace 210 is burned is uniformly transferred to the outside without being focused on one side .

In addition, as shown in FIGS. 1 and 2, the main body 200 is constructed with a communication pipe 220 so that the smoke generated after the combustion can be discharged to the outside. At this time, the communication pipe 220 may be formed on the side surface of the main body 200, but it is preferably formed on the upper surface of the main body 200 so that the smoke staying inside the main body 200 can be discharged to the outside .

As shown in Fig. 2, the main body 200 is equipped with a door 230 which can be opened and closed on one side. The door 230 is useful for removing material accumulated in the lower part of the furnace 210 by pellet combustion or repairing the inside of the main body 200 such as the furnace 210. In a preferred embodiment of the present invention, the door 230 is provided with a transparent inspection window to allow the main body 200 to be viewed, so that it is possible to visually confirm whether the pellets 210 are smoothly burned in the furnace 210 .

Lastly, as shown in FIG. 1, the main body 200 is mounted with the stay plates 240a and 240b so that the smoke stays on the hearth 210 for a long time and heat exchange can be performed for a long time. The stay plates 240a and 240b can be of any configuration as long as the smoke can stay for a long time. For example, one retention plate 240a is formed in an upper and lower box shape, and the lower part is opened, so that smoke flows into the box, At least two sheets 240b are installed inside the main body 200 so as to allow air flow through both edges of the main body 200, so that the air flow can be changed by installing a gap with an angle of 90 °, .

As shown in Fig. 1 and Fig. 2, the conveying screw 300 is manufactured by a conventional technique for rotating the screw to convey the pellets in the longitudinal direction thereof. At this time, the screw 300 is mounted on the base 100, and one end of the screw 300 is inserted through the main body 200 to supply the pellets to the furnace 210.

At this time, the conveying screw 300 is configured to allow the pellet to fall freely into the furnace 210 by receiving the force to be transferred from the conveying screw 300 without touching the furnace 210 with the end of the conveying screw 300 penetrating into the main body 200 .

In the drawing, the conveying screw 300 is installed horizontally with the base 100. However, the present invention is not limited thereto, and the installation angle and the position may be differently formed in consideration of the installation space and the position.

The hopper 400 is a feeder for supplying pellets from the outside and feeding the pellets 210 through the feed screw 300 as shown in FIGS. It is preferable that the hopper 400 is made of a conventional technique and is installed on the base 100 so as to be positioned on the conveying screw 300 so that the pellets are freely dropped and supplied to the conveying screw 300 .

In the preferred embodiment of the present invention, the hopper 400 is attached to the outer surface, most preferably the surface facing the main body 200, with the heat transferred from the main body 200 to the hopper 400, It is preferable to configure the pellet to prevent the pellet from being deteriorated or carbonized.

The air blower 500 is configured such that the pellets supplied to the furnace 210 are supplied to the base 100 so that air can be supplied from the outside so that the pellets 210 can be burned in the furnace 210 as shown in FIGS. Respectively. For this, the main pipe 510 is formed in the air blower 500 so that sufficient air can be supplied through the main body 200 and down to the furnace 210. In FIG. 3, the air supplied to the furnace 210 is indicated by a thin arrow, and the smoke burned in the furnace 210 is indicated by a dark arrow.

Particularly, in the main pipe 510, a part of air supplied to the furnace 210 is blown between the main body 200 and the furnace 210 to form an air curtain as shown in FIGS. 1 and 3 The branch pipe 520 is branched. At this time, the branch pipe 520 is positioned on the end of the conveying screw 300 connected to the main body 200, and air is blown between the main body 200 and the hearth 210 at this position, Thereby preventing the heat generated in the furnace 210 from being transmitted to the pellets that have not been dropped into the furnace 210. 3, the opened arrow indicates the path through which the unburned pellets are supplied to the furnace 210 through the feed screw 300, and the thin arrow indicates the path through which the unburned pellets are supplied to the branch pipe 520 Respectively.

In the preferred embodiment of the present invention, the main pipe 510 is provided with an induction plate 512, as shown in FIG. 1, so that a part of the air for forming the air curtain can be branched from the branch pipe 520 It is preferable to further configure it. The guide plate 512 serves to guide the air flowing into the main pipe 510 into the branch pipe 520 by partially blocking the air.

The furnace 210 further includes an auxiliary pipe 511 extending from the furnace 210 to the communication pipe 220 as shown in FIGS. 1 and 3. As shown in FIG. This is because, if excess air is supplied to the furnace 210 through the main pipe 510, the pellet may be burned abruptly. If too much air is supplied, a part of the air is supplied through the auxiliary pipe 511 to the main body 200 ) To be discharged to the outside. Thus, the pellet is rapidly burned to prevent deterioration or breakage of the main body 200, and the thermal efficiency of the pellet can be increased. In the figure, a medium-sized arrow indicates that a part of the air supplied to the furnace 220 is discharged to the outside of the communication channel 220 through the auxiliary pipe 511.
Here, it is preferable that a necessary amount of air is introduced into the furnace 210 through the air blower 500, but it is preferable that the amount of air flowing through the air blower 500, May be greater than the amount of air required by the air conditioner 210. As described above, the excess air is air that is supplied to the furnace 210 by the air blower 500 more than the air required for the combustion. The air is introduced into the furnace 210 at a predetermined pressure in the air blower 500, So that the unburnt excess air in the furnace 210 is allowed to escape through the auxiliary pipe 5110 to the communication pipe 220 by the pressure.

As described above, according to the present invention, an air curtain is formed between the furnace and the main body in a part for pelletizing the pellets, thereby preventing the heat generated in the furnace from being transmitted to the pellets not transferred from the transfer screw, It is possible to prevent a safety accident or a combustion efficiency from being lowered in advance.

In addition, since a large amount of air is supplied to the furnace, part of the excess air is discharged to the communication through the auxiliary pipe so that the pellets supplied to the furnace do not burn too much or burn, so that the burning rate of the pellets can be appropriately controlled, .

100: Base
110: casters
200:
210: Oven
220: communication
230: Door
300: Feed screw
400: Hopper
500: Air blower
510: main pipe
511: auxiliary tube
512: guide plate
520: branch pipe

Claims (3)

A base 100 having a predetermined size and having a caster 110 so that the base 100 can be transported to the floor; A hollow body 200 mounted on the base 100 and having an oven 210 therein; A transfer screw 300 mounted on the base 100 to supply pellets to the furnace 210 from the outside of the main body 200; A hopper 400 mounted on the transport screw 300 to supply the pellets; And an air blower (500) installed in the base (100) so as to supply air to the furnace (210) from the outside of the main body (200)
A main pipe 510 is connected to the air blower 500 so as to supply air to the fume pipe 210. The main pipe 510 is connected to the main body 200 at a position where the pellets are dropped to the fume pipe 210. [ A branch pipe 520 for branching the air so as to form an air curtain between the flames 210 is connected,
An auxiliary pipe 511 connecting the communication pipe 220 is formed in the furnace 210 so that excess air can be discharged directly through the communication pipe 220 formed in the main body 200,
The main pipe 510 is further provided with an induction plate 512 for allowing air to flow through the branch pipe 520,
The branch pipe 520 is configured to blow air from the top to the bottom of the conveying screw 300 so that the air curtain can be formed downward from the position where the pellets are dropped into the furnace 210 through the conveying screw 300 Wherein the pellet stove is configured as a pellet stove. delete delete

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