KR20160004137A - Pellet combustion apparatus for preventing incompleted combustion - Google Patents

Abstract

A pellet combustion device for preventing incomplete combustion is disclosed.
According to an aspect of the present invention, there is provided a pellet burning apparatus for preventing incomplete combustion, the apparatus including a combustion chamber for supplying pellets to a combustion chamber and having a plurality of embossing protrusions protruding from the sidewall of the combustion chamber toward an inner space in which the pellets are loaded, .

Description

TECHNICAL FIELD [0001] The present invention relates to a pellet combustion device for preventing incomplete combustion,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pellet combustion apparatus, and more particularly, to a pellet combustion apparatus for improving incombustibility of a pellet through structural improvement of a combustion chamber and preventing incomplete combustion .

Recently, there is a growing interest in solving energy problems using biomass resources. Biomass is a generic term for organic matter that exists in nature.

Biomass is a representative resource that mankind has long used for food, energy, building materials, and daily necessities. However, it has not been well valued for fossil fuels such as petroleum, which can be conveniently and cheaply manufactured to various products.

But in recent years the situation has started to change rapidly. Already, the supply of ethanol for fuel extracted from corn or sugarcane has been shortage, and biodiesel obtained by processing grain seeds or waste cooking oil is growing rapidly in Europe.

In addition, biomass is estimated to have potential to replace not only renewable energy but also various petrochemical-based products. Some say biomass resources are the only "ground resources" that can replace 'underground resources' such as oil and coal.

These kinds of biomass are very diverse such as microbial flora and fauna, by-products of various human activities, or waste. Specific examples include wood, manure, grain, and food waste, which are typical biomass.

On the other hand, the biomass which is conventionally known is produced as a solid and used as fuel. In addition, biomass may be mixed with waste oil or the like to be produced as a solid fuel. The solid fuel mainly composed of such biomass or waste oil has a pellet shape, which is referred to as pellet or pellet fuel.

Particularly, the pellets are utilized as an energy source of a combustion device such as a hearth or a hot water boiler. However, in the case of such a combustion apparatus using pellet fuel, it is an important technical problem to prevent incomplete combustion.

If incomplete combustion occurs in the pellet combustion apparatus, the entire calorie amount of the pellet can not be used and the utilization of resources is lowered. In addition, exhaust gas, organic matter, and dust that have not been burned are discharged to the outside of the combustion chamber, thereby deteriorating the cleanliness of the heating space and adversely affecting the user's body.

Therefore, there is a need for a technical solution to improve the combustion efficiency by improving the structure of the combustion chamber to prevent incomplete combustion.

Prior art relating to the present invention is Korean Patent Registration No. 10-1051707 (published on July 25, 2011), and the prior art discloses a technique relating to a solid fuel combustion apparatus.

The present invention relates to a pellet combustion device for improving incombustibility of a pellet through structural improvement of a combustion chamber and for preventing incomplete combustion capable of reducing the generation of exhaust gas.

The problems to be solved by the present invention are not limited to the above-mentioned problem (s), and another problem (s) not mentioned here will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a pellet burning apparatus for preventing incomplete combustion, the apparatus including a combustion chamber for supplying pellets to a combustion chamber and having a plurality of embossing protrusions protruding from the sidewall of the combustion chamber toward an inner space in which the pellets are loaded, .

Further, it may have at least one air inlet formed on the embossing protrusion and passing through the inside and the outside of the combustion chamber.

In addition, the embossing protrusion may have a hemispherical shape or a polygonal shape.

According to another aspect of the present invention, A combustion chamber built in the housing and supplied with pellets and burning; A pellet charging unit for charging pellets from the outside of the housing; And a plurality of embossing projections protruding from the sidewall of the combustion chamber toward the inner space in which the pellets are stacked, for preventing incomplete combustion, and a pellet transferring unit for transferring the pellets introduced through the pellet charging unit to the inner space of the combustion chamber. A pellet combustion device can be provided.

Further, it may have at least one air inlet formed on the embossing protrusion and passing through the inside and the outside of the combustion chamber.

In addition, the embossing protrusion may have a hemispherical shape or a polygonal shape.

The pellet transferring unit may include: a horizontal pipe having one end connected to the pellet injecting unit and the other end connected to the inner space of the combustion chamber; A driving screw rotatably driven in the horizontal tube and supplying the pellets supplied from the pellet charging unit to the internal space of the combustion chamber; And a driving unit for providing driving force to the driving screw.

The control unit may control the on / off operation of the driving unit at a predetermined period of time set by the user or may change the set temperature inputted from the user and the measured temperature of the combustion chamber, The ON / OFF operation of the driving unit can be controlled.

In addition, the housing may be provided with an exhaust port for discharging the exhaust gas discharged from the inner space of the combustion chamber to the outside, and a ventilation portion may further be provided between the combustion chamber and the exhaust port.

According to the present invention, the combustion rate of the pellets can be improved and the generation of the exhaust gas can be reduced in the use of the pellet combustion device through structural improvement of the combustion chamber. Accordingly, utilization of the pellet resource can be improved and the combustion efficiency can be increased.

In particular, a plurality of embossing protrusions are formed toward the inner space of the combustion chamber in which the pellets are loaded from the side wall of the combustion chamber to increase the exposed area of the pellets to heat, and an air inlet is formed in the embossing protrusion, .

Further, by suppressing the external discharge of exhaust gas, organic matter, and branches caused by incomplete combustion in the internal space of the combustion chamber, cleanliness around the combustion apparatus can be improved, and occurrence of harmful damage to the human body can be prevented .

1 is a sectional view of a pellet combustion device for preventing incomplete combustion according to an embodiment of the present invention.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pellet burning apparatus for preventing incomplete combustion,
3 is a cross-sectional view schematically showing a structure of a combustion chamber according to an embodiment of the present invention.
Figs. 4 to 6 are enlarged views of region A in Fig. 3; Fig.
7 is a cross-sectional view of a pellet combustion device for preventing incomplete combustion according to an embodiment of the present invention, in which the structure of the edge portion is added.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, a pellet combustion apparatus for preventing incomplete combustion according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Here, the pellet refers to a pellet as a solid fuel using biomass resources.

FIG. 1 is a cross-sectional view of a pellet combustion apparatus for preventing incomplete combustion according to an embodiment of the present invention, and FIG. 2 is a sectional view showing an example in which the shape of a combustion chamber is changed.

Referring to FIG. 1, the illustrated pellet combustion apparatus 100 mainly includes housings 101 and 105, a combustion chamber 110, a pellet charging unit 140, and a pellet transferring unit 150.

Particularly, the embodiments of the present invention are characterized by having a plurality of embossing protrusions 113 protruding from the side wall of the combustion chamber 110 toward the inner space 115 where the pellets are loaded.

The housings 101 and 105 are provided with a housing 101 on one side where the combustion chamber 110 is housed and a housing 105 on the other side where the pellet charging unit 140 and the pellet transferring unit 150 are integrated. .

However, the overall appearance of the housings 101 and 105 need not be limited to a specific form, and may be provided in a different form from that shown in FIG.

In addition, covers (103, 107) that can be opened and closed can be provided on the upper portions of the housings (101, 105).

For example, the cover 103 provided on the upper portion of the housing 101 may be opened and closed for maintenance and management of the combustion chamber 110, and the cover 105 provided on the upper portion of the housing 105 on the other side, The pellets may be opened and closed in order to input a large amount of pellets into the pellet injecting unit 140.

An exhaust port 109 communicating with the upper end of the combustion chamber 110 may be provided in the housing 101 at one side where the combustion chamber 110 is embedded.

Accordingly, the exhaust gas generated after the pellets are burnt in the internal space 115 of the combustion chamber can be discharged to the outside through the exhaust port 109.

Meanwhile, a re-collecting unit 130 may be provided in a bottom region of the housing 101 on one side where the combustion chamber 110 is installed.

Accordingly, after the pellets are burnt in the internal space 115 of the combustion chamber, the generated ash (or carbide) can be easily collected through the re-collecting unit 130.

The combustion chamber 110 may be embedded in the housing 101 at one side and serves to supply and burn pellets by the pellet injecting unit 140 and the pellet transferring unit 150.

The combustion chamber 110 may be provided in various shapes. As shown in FIG. 1, the combustion chamber 110 may be provided in a rhombic shape.

As another example, referring to FIG. 2, the shape of the combustion chamber 110 'in which the cross section is provided in a rectangular shape can be confirmed.

Further, although not shown separately, the cross-sectional shape of the combustion chamber may be provided in a form different from that shown in Figs.

Particularly, the inner space 115 of the combustion chamber 110 can be used as a receiving space in which the supplied pellets are loaded, and the bottom of the inner space 115 supports the pellets loaded through the inner space 115 of the combustion chamber 110 A plate-shaped pellet supporting portion 120 may be provided.

A plurality of ash discharge holes are formed in the pellet supporting part 120 so that the ashes remaining in the inner space 115 of the combustion chamber 110 can be easily collected into the collecting space 131 And can be provided with a structure capable of discharging.

The re-collecting unit 130 can be opened from the housing 101 at one side so that the convenience of the operation of separating and removing the ash (or carbide) collected through the re-collecting space 131 can be improved have.

The pellet feeder 140 has a structure that facilitates feeding a large amount of pellets at a time. For example, the pellet feeder 140 may be provided in the form of a hopper as shown in FIG.

The pellet transferring unit 150 may be configured to continuously supply the pellets supplied from the pellet charging unit 140 to the internal space of the combustion chamber 110.

For example, the pellet transferring unit 150 may include a driving screw 151 provided along the inner longitudinal direction of the horizontal pipe 154 for transferring the pellets to rotate, a driving screw 151 for providing a driving force to the driving screw 151 And a driving unit 153.

Here, the driving unit 153 may use a motor or the like that generates torque by power supply.

One end of the horizontal pipe 154 of the pellet transferring part 150 may be connected to the outlet of the pellet injecting part 140 and the other end may be connected to the combustion chamber 110.

As another example, an inclined pipe 155 may be further provided between the horizontal pipe 154 and the combustion chamber 110 so as to be inclined downwardly.

In this case, the pellet can be forcedly delivered to the outlet of the horizontal pipe 154 as the driving screw 151 rotates. Then, the pellets can be smoothly supplied to the combustion chamber 110 while being slid by the angle of the slant pipe 155.

The control unit CON may control the operation of the driving unit 153. The control unit CON may be configured to receive the set time from the user and to control the ON / OFF of the driving unit 153 at intervals of the input set time.

The controller CON receives the set temperature from the user, compares the input set temperature with the current measured temperature of the combustion chamber, and controls the ON / OFF of the drive unit 153 until the measured temperature of the combustion chamber reaches the set temperature / Off < / RTI >

Next, a structure of a combustion chamber having a plurality of embossing protrusions projecting toward an inner space in which pellets are loaded from side walls according to an embodiment of the present invention will be described.

3 is a cross-sectional view schematically illustrating a structure of a combustion chamber according to an embodiment of the present invention.

FIG. 3 (a) shows the structure of the combustion chamber 110 provided with a rhombic cross section shown in FIG. 1, and FIG. 3 (b) shows a structure of the combustion chamber 110, 0.0 > 110 '. ≪ / RTI >

3 (a), in the case of the illustrated combustion chamber 110, a large amount of pellets P loaded in the inner space can be identified. In order to improve the combustion efficiency of the large amount of pellets P, A plurality of embossing protrusions 113 are provided on the side wall 111 of the main body 110. [

As a specific example, the plurality of embossing projections 113 may protrude from the side wall 111 of the combustion chamber toward an inner space where the pellets are loaded.

Accordingly, a large amount of pellets are irregularly arranged by the embossing protrusion 113, thereby increasing the area of pellets exposed to heat inside the combustion chamber, thereby improving the combustion efficiency.

That is, since the side wall 111 of the combustion chamber has a smooth shape, the combustion efficiency can be improved by providing a plurality of embossing projections 113.

Further, the plurality of embossing projections 113 may be provided with at least one air inlet 114 passing through the inside and the outside of the combustion chamber.

If the air is injected smoothly into the combustion chamber through the air inlet 114, the amount of oxygen required for combustion of the pellets is increased and the combustion efficiency can be improved.

Next, the operation and effect of the air inlet 114 formed on the embossing protrusion 113 will be described with reference to FIGS. 4 to 6. FIG.

FIGS. 4 to 6 are enlarged views of the area A in FIG. 3, that is, the area where the embossing projection and the air inlet are formed.

4 shows the embossing projection provided in a hemispherical cross-section.

Referring to FIG. 4, it can be seen that the embossing protrusion 113 protrudes from the sidewall 111 of the combustion chamber toward the inner space where the pellets P are loaded. An air inlet 114 may be formed at the center of the embossing protrusion 113 through a sidewall 111 of the combustion chamber.

If the air is supplied smoothly to the pellet (P) loaded in the inner space of the combustion chamber through the air inlet 114, the oxygen supply amount is increased and the combustion efficiency is improved.

Particularly, when the air inlet 114 is provided at the maximum protruding portion of the embossing protrusion 113, that is, at the central portion, the air inlet 114 can be prevented from being clogged by a large amount of pellets P , It is possible to enrich the supply amount of oxygen necessary for pellet combustion.

Referring to FIG. 5, the embossing protrusion 113 'having a polygonal cross-section can be seen, unlike the FIG. 4 described above.

The embossing protrusion may be provided in a form in which various round shapes and angular shapes are combined.

At least one air inlet 114 may be provided for one embossing protrusion 113.

Referring to FIG. 6, it can be seen that three air inlets 114 are provided in the embossing protrusion 113 having a hemispherical cross section.

When a plurality of embossing protrusions are formed through the sidewalls of the combustion chamber and at least one air inlet is provided for each embossing protrusion, the supply amount of oxygen becomes rich, and the area of exposure of the pellet to heat also increases, Can be improved.

As a result, incomplete combustion can be prevented as much as possible.

Meanwhile, according to the embodiment of the present invention, the pellet combustion apparatus may further include a configuration of the edge portion capable of removing the exhaust gas (e.g., smoke, dust, etc.).

FIG. 7 is a cross-sectional view of a pellet combustion device for preventing incomplete combustion according to an embodiment of the present invention, with the structure of the edge portion added.

Referring to FIG. 7, in the case of the illustrated pellet combustion apparatus 100, as described above, after the pellets are supplied into the combustion chamber 110, the exposed area of the pellets to the rich oxygen supply and heat is increased, It is possible to perform combustion close to complete combustion in a maximized state.

In this case, however, exhaust gas (g) including smoke, dust, and the like may be generated during the process of burning a large amount of pellets in the combustion chamber 110.

If the exhaust gas g thus generated is directly discharged through the exhaust port 109, the clean state in the space (in particular, the indoor space) where the pellet burner 100 is installed can be deteriorated .

Furthermore, if harmful exhaust gas (g) is discharged to the human body, serious human casualties may occur. In consideration of such a case, the configuration of the strands 160 may be further included.

The strands 160 may be provided between the upper end of the combustion chamber 110 and the exhaust port 109. For example, the strands 160 may include a metal plate (e.g., an iron plate) and a heating device (e.g., a gas torch or the like) for heating the metal plate to a high temperature. In addition, the barrier 160 may be of a conventional construction known as a catalytic device for burning off smoke or the like.

As described above, according to the structure and operation of the present invention, the combustion rate of the pellets can be improved and the generation of exhaust gas can be reduced in using the pellet combustion device through structural improvement of the combustion chamber. Accordingly, utilization of the pellet resource can be improved and the combustion efficiency can be increased.

In particular, a plurality of embossing protrusions are formed toward the inner space of the combustion chamber in which the pellets are loaded from the side wall of the combustion chamber to increase the exposed area of the pellets to heat, and an air inlet is formed in the embossing protrusion, .

Further, by suppressing the external discharge of exhaust gas, organic matter, and branches caused by incomplete combustion in the internal space of the combustion chamber, cleanliness around the combustion apparatus can be improved, and occurrence of harmful damage to the human body can be prevented .

Although the present invention has been described with respect to a specific embodiment of the pellet burner for preventing incomplete combustion according to the present invention, it is apparent that various modifications can be made without departing from the scope of the present invention.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not intended to be exhaustive or to limit the scope of the invention. All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

P: Pellet
100: Pellet combustion device for preventing incomplete combustion
101, 105: housing 103, 107: cover
109: exhaust port 110: combustion chamber
111: combustion chamber side wall 113: embossed inner projection
114: air inlet 115: pellet loading space
120: pellet supporting part 130:
131: re-collecting space 140: pellet input part
150: pellet feeder 151: driving screw
153: driving part 154: horizontal piping
155: slant pipe 160:

Claims (9)

And a combustion chamber which is supplied with pellets and is burnt,
And a plurality of embossing projections protruding from the side wall of the combustion chamber toward the inner space where the pellets are loaded.
The method according to claim 1,
And at least one air inlet formed on the embossing projection and passing through the inside and the outside of the combustion chamber, for preventing incomplete combustion.
3. The method according to claim 1 or 2,
Wherein the embossing protrusion has a hemispherical shape or a polygonal shape, for preventing incomplete combustion.
housing;
A combustion chamber built in the housing and supplied with pellets and burning;
A pellet charging unit for charging pellets from the outside of the housing; And
And a pellet transferring unit for transferring the pellets injected through the pellet injecting unit to the inner space of the combustion chamber,
And a plurality of embossing projections protruding from the side wall of the combustion chamber toward the inner space where the pellets are loaded.
5. The method of claim 4,
And at least one air inlet formed on the embossing projection and passing through the inside and the outside of the combustion chamber, for preventing incomplete combustion.
The method according to claim 4 or 5,
Wherein the embossing protrusion has a hemispherical shape or a polygonal shape, for preventing incomplete combustion.
The method according to claim 4 or 5,
The pellet transferring portion,
A horizontal pipe connected at one end to the pellet charging part and connected at the other end to an inner space of the combustion chamber;
A driving screw rotatably driven in the horizontal tube and supplying the pellets supplied from the pellet charging unit to the internal space of the combustion chamber; And
And a driving unit for supplying driving force to the driving screw.
8. The method of claim 7,
And a control unit for controlling the operation of the driving unit,
The control unit may control the on / off operation of the driving unit at a predetermined period of time set by the user,
Wherein the on / off operation of the driving unit is controlled by comparing the set temperature inputted from the user with the measured temperature of the combustion chamber.
The method according to claim 4 or 5,
The housing includes:
An exhaust port for discharging the exhaust gas discharged from the internal space of the combustion chamber to the outside,
And a ventilating portion is further provided between the combustion chamber and the exhaust port to prevent incomplete combustion.

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