KR101313533B1 - Wood pellet boiler combustion apparatus of bottom feeding type - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom-loading wood pellet boiler combustion apparatus which uses wood pellets as a fuel and is used as a fuel. The present invention relates to a combustion chamber surrounded by an outer wall and having a central bottom concave, and to a lower portion of the combustion chamber. A fuel input member for injecting fuel, an outer case surrounding the combustion chamber outside of the combustion chamber, and an outer side of the combustion chamber and an inner side of the outer case, the air is blown into a space between the combustion chamber and the outer case An injection-type wood pellet boiler combustion apparatus including an air blowing member and a fluid circulation unit disposed at an upper portion of the combustion chamber and the outer case and allowing the heated fluid to circulate while moving up and down while fuel is combusted in the combustion chamber. To provide.

Description

WOOD PELLET BOILER COMBUSTION APPARATUS OF BOTTOM FEEDING TYPE}

The present invention relates to a bottom-loading wood pellet boiler combustion apparatus, and more particularly, to a bottom-loading wood pellet boiler combustion apparatus using the wood pellets as a lower fuel.

Common heaters and boilers are made to raise the temperature of indoor and outdoor air using various fuels. Until now, heaters that use oil or gas as a fuel have been commonly used, but recently, due to environmental problems such as depletion of energy resources and carbon dioxide emissions, and rising prices such as rising crude oil costs, recently, eco-friendly and inexpensive materials using natural materials There is an increasing demand for the use of heaters that use fuel.

The radiator manufactured to meet these demands is a radiator using wood pellets manufactured in pellet form by compressing sawdust or wood chips. As a technology for a bottom-loading wood pellet boiler combustion apparatus, there is Korea Patent Publication No. 10-2010-0106645 (hereinafter referred to as 'prior art 1'). Prior art 1 has a wood pellet heater having a feed guide is installed in the inner center of the outer case, the fuel is supplied from the outside of the combustion device, the fuel is supplied to the upper center of the combustion device, the blower is installed at the bottom It is about.

Prior art 1 is a form in which fuel, that is, wood pellets are supplied to the center of the combustion apparatus and combusted, and since the hot air rises above the central part of the combustion apparatus due to the phenomenon that the hot air rises upwards, It is hard to flow in. Therefore, the prior art 1 has a problem in that the heating efficiency of the combustion device is lowered and a separate device is provided for this purpose in order to circulate hot air.

In addition, as a technology for the stove using the wood pellets, there is Korea Patent Publication No. 10-2011-0080867 (hereinafter referred to as "prior art 2"). Prior art 2 relates to a stove in which fuel injected through a fuel inlet formed at a lower end of a main body, ie, wood pellets, is burned to raise the temperature of air in the main body to perform heating, and a wall of the main body is formed as a single wall. The wall has a problem that the air warmed due to the combustion of the wood pellets can be easily dropped by the influence of the temperature outside the main body, the heating efficiency may be lowered.

The present invention is to provide a bottom-loading wood pellet boiler combustion apparatus that the combustion of the fuel is made at the bottom, and can improve the heating efficiency by heating the fluid by the heat by the combustion.

It is also an object of the present invention to provide a bottom-loading wood pellet boiler combustion apparatus capable of increasing the combustion efficiency of fuel and achieving excellent heating efficiency even with less fuel.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above.

The bottom-filling wood pellet boiler combustion apparatus of the present invention for achieving the above object is a combustion chamber surrounded by an outer wall and concave at the bottom of the center, and a fuel injection member in communication with a lower portion of the combustion chamber and injecting fuel into the lower portion of the combustion chamber. And an outer case surrounding the combustion chamber from the outside of the combustion chamber, a blower member and a combustion chamber configured to be connected to the outside of the combustion chamber and the inside of the outer case, and to blow air into a space between the combustion chamber and the outer case. Is disposed above the outer case, it may include a fluid circulation unit for circulating while the fluid warmed while the fuel is combusted in the combustion chamber moves up and down.

Specifically, the fluid circulation unit, the air or gas flow therein and the air circulation member having a moving passage formed to circulate from the bottom to the top and liquid such as water flows therein and the air circulation member And a liquid circulation member having a moving passage formed to be in contact with the portion.

The air circulation member may include a riser tube communicating with an upper portion of the combustion chamber to induce the air warmed up in the combustion chamber to rise in an upward direction, a horizontal tube which is a passage through which the air moved along the riser tube moves in a horizontal direction; It may be composed of a down pipe to guide the air moved along the horizontal pipe is lowered in the downward direction and an exhaust port through which the air moved along the down pipe is discharged to the outside.

The liquid circulation member may include a water supply port through which liquid is introduced from the outside, a liquid introduced through the water supply port, and a moving tube formed to be in contact with the air circulation member, and moved along the moving tube. It may be composed of a drain that discharges water to the outside.

The inner wall surface of the outer case may be further formed with a heat insulating layer made of a refractory material or heat insulating material to maintain the temperature of the warmed internal air.

The combustion chamber, the outer wall may be made of a mesh or porous wall.

A partition wall is formed between the combustion chamber and the outer case so as to surround the combustion chamber while being spaced apart from the combustion chamber, and the blower member is installed at one side of the partition wall to introduce air into the partition wall.

At least one auxiliary inflow member may be installed at an upper end of a partition wall surrounding the combustion chamber so that the air introduced into the partition wall may move upward and move to an upper portion of the combustion chamber.

At least one injection hole communicating with the outside may be formed at one side of the auxiliary inflow member so as to inject the air moved from the inside to the outside.

The fuel injection member may include a horizontal mover provided with a horizontal screw for moving the fuel in a horizontal direction in a horizontal body elongated in a horizontal direction to move the fuel injected from the outside in a horizontal direction.

The fuel injection member may include a vertical mover provided with a vertical screw for moving the fuel in a vertical direction in a vertically elongated body to move the fuel injected from the outside in a vertical direction.

As described above, the present invention has the effect of improving the heating efficiency by allowing the combustion of the fuel to be made in the lower portion, thereby heating and circulating the fluid with heat by combustion.

In addition, the present invention has the effect of increasing the combustion efficiency of the fuel to achieve excellent heating efficiency even with a small fuel. Furthermore, the present invention has the effect of maximizing energy efficiency by allowing the fluid heated by combustion of fuel to be recycled.

1 is a front view showing a schematic view of a bottom-loading wood pellet boiler combustion apparatus according to an embodiment of the present invention.
2 is a cross-sectional view of the bottom-loading wood pellet boiler combustion apparatus of FIG.
3 is a plan view of the bottom-loading wood pellet boiler combustion apparatus of FIG.
4 is a plan view of a cross section taken along line A of the bottom-loading wood pellet boiler combustion apparatus of FIG.
5 is a plan view of a cross section taken along line B of the bottom-loading wood pellet boiler combustion apparatus of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference symbols whenever possible. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Figure 1 is a front view showing a schematic view of a bottom-loading wood pellet boiler combustion apparatus according to an embodiment of the present invention, Figure 2 is a sectional view of Figure 1, Figure 3 is a plan view of Figure 1. 1 to 3, the wood pellet boiler combustion apparatus 100 includes a combustion chamber 110, a fuel injection member 120, an outer case 130, a blower member 140, and a fluid circulation unit ( 170).

The combustion chamber 110 is preferably located at the lower center of the apparatus, and is preferably surrounded by an outer wall and has a concave recessed bottom of the central portion. The combustion chamber 110 may have an inverted cone shape having a large upper diameter and a lower diameter as shown in the drawing. The combustion chamber 110 is a place where fuel, that is, wood pellets P is injected and ignited, and then burned, and the upper diameter is preferably formed in a funnel shape so that the air warmed by the combustion can rise smoothly upward. Do. In addition, the combustion chamber 110 preferably has an outer wall made of a mesh or a porous material. Of course, the combustion chamber 110 may be made of a general metal material or a ceramic material. However, since the combustion chamber 110 has a smooth circulation of air inside and outside so that oxygen is continuously supplied to the fuel combusted in the combustion chamber 110, a metal plate or a ceramic plate having a plurality of holes is used. desirable. In addition, it is preferable that a porous metal material or a porous ceramic material having a large number of bubbles or holes through which gas can pass through the inside or outside be used even if the net shape is not used.

The fuel input member 120 is formed to communicate with the lower portion of the combustion chamber 110 to inject fuel, that is, wood pellets P into the lower portion of the combustion chamber 110. The fuel input member 120 inputs the wood pellets P stored in the external fuel hopper 123 to the combustion chamber 110, and horizontally inserts the wood pellets P injected from the fuel hopper 123 as shown in FIG. 3. Combustion chamber 110 through the lower portion of the combustion chamber 110 by vertically moving the wood pellets (P) located in the lower portion of the combustion chamber 110 through the horizontal mover 121 and the horizontal mover 121 to move in one direction. It may be composed of a vertical mover 122 that is injected into the.

The horizontal mover 121 may be provided with a horizontal screw 121b along the length of the horizontal body 121a in the horizontal body 121a long in the horizontal direction. When the horizontal screw 121b is connected to the motor at one side thereof and the horizontal motor 121c rotates, the horizontal screw 121b rotates according to the space between the wing of the horizontal screw 121b and the horizontal body 121a in the horizontal direction. Move to. Of course, the horizontal mover 121 may be any shape as long as it can move in the horizontal direction by moving the wood pellets (P) in addition to the horizontal screw (121b). For example, the horizontal mover 121 is formed by a plurality of partitions are partitioned to accommodate a number of wood pellets (P) in one compartment to raise the plate formed with partitions on the conveyor belt form by rotating the conveyor belt It is also possible to move the wood pellets P while being circulated.

The vertical mover 122 may be formed to inject the wood pellets P transferred through the horizontal mover 121 into the combustion chamber 110. The end of the horizontal mover 121 is in communication with one side of the vertical mover 122, so that the wood pellets (P) arriving at the lower portion of the combustion chamber 110 through the horizontal mover 121 is upward through the vertical mover (122). Is moved to the inside of the combustion chamber (110).

The vertical mover 122 has a vertical body 122a elongated in the vertical direction to vertically move the wood pellets P, and a vertical screw 122b is installed inside the vertical body 122a. One side of the vertical screw 122b is connected to the vertical motor 122c and is rotated by the rotation of the motor 122c, and the space between the wing of the vertical screw 122b and the vertical body 122a is raised by the rotation of the screw blades. While moving in the direction, the wood pellets (P) is also moved upwards. The upper end of the vertical mover 122 is in communication with the lower side of the combustion chamber 110, the wood pellet (P) discharged through the upper end of the vertical mover 122 is injected into the lower end of the combustion chamber (110). In this manner, the wood pellets P stored in the external fuel hopper 123 may be continuously introduced into the combustion chamber 110.

Ignition of the wood pellets (P) introduced into the combustion chamber 110 may be performed automatically by installing a separate burner in the combustion chamber 110, in a manner that the operator directly puts a torch or the like into the combustion chamber 110 to ignite. It can also be done. In order to ignite the fuel, a predetermined opening and closing port 111 communicating with the outside in the combustion chamber 110 may be installed.

 The outer case 130 is installed outside the combustion chamber 110 and is spaced apart from the combustion chamber 110 to surround the combustion chamber 110. The outer case 130 is a cylindrical cylinder as shown in the combustion chamber 110 is located inside the outer case 130. The outer case 130 constitutes the outermost part of the boiler device, and may be made of metal or the like. 2 and 4, the outer case 130, the heat insulating layer 131 is preferably formed on the inner wall surface. The heat insulating layer 131 is made of a fireproof material or a heat insulating material. The heat insulation layer 131 prevents heat loss inside the outer case 130 by preventing the heat generated from burning wood pellets P from directly contacting the outside air in the combustion chamber 110 located inside the outer case 130. It is formed for. The material for forming the heat insulation layer 131 may be carbides, oxides, silicides, nitrides, and the like having high melting points using silicon, aluminum, magnesium, zirconium, and calcium, which are refractory materials that do not soften or melt at high temperatures. Specifically, aluminum oxide, chromium oxide, magnesium oxide, dolomite and the like can be used. A refractory brick made of such a material may be attached to the inner wall of the outer case 130 to form the heat insulating layer 131. In addition, a heat insulating material can be used for the heat insulating layer 131. Specifically, the heat insulating material may be a porous material having a low thermal conductivity, and asbestos, diatomaceous earth, magnesium carbonate, magnesia, calcium silicate, pearlite, and the like may be used to withstand high temperatures over 1000 ° C.

The blowing member 140 is disposed on the outer side of the combustion chamber 110 and the upper portion of the outer case 130, and serves to blow air into the space between the combustion chamber 110 and the outer case 130. The blowing member 140 may suck the outside air with an air compressor or the like and discharge the air into the space between the combustion chamber 110 and the outer case 130. Of course, the blowing member 140 may be in the form of inhaling the outside air in the form of a fan and blows it into the inside. As shown in Figure 2, the air discharged through the blowing member 140 is moved through the outer wall of the combustion chamber 110 of a net or porous material is supplied into the combustion chamber 110 to facilitate the combustion of fuel.

In addition, as shown in FIG. 2, a partition wall 150 may be installed between the outer case 130 and the combustion chamber 110. The partition wall 150 may be spaced apart from the combustion chamber 110 to surround the combustion chamber 110. The inlet of the blowing member 140 may be connected to pass through one side of the partition wall 150. The partition wall 150 may help to smoothly burn fuel in the combustion chamber 110 by forming a space in which the air may be more smoothly and strongly supplied into the combustion chamber 110. At least one auxiliary inflow member 160 may be installed at an upper end of the partition wall 150. As shown in FIGS. 2 and 4, the auxiliary inflow member 160 is formed in plural on the upper end of the partition wall 150 surrounding the combustion chamber 110, and the warmed air discharged from the combustion chamber 110 is supplied to the auxiliary inflow member 160. It may be injected into the flame generated in the combustion chamber 110 through the injection hole 161 formed in the). One or more injection holes 161 are holes formed in the auxiliary inflow member 160, and the wood pellets P are burned in the combustion chamber 110 while air is discharged from the inside of the auxiliary inflow member 160 to the outside through the injection holes 161. It can be supplied to the flames generated while the fuel is being burned smoothly.

In addition, the injection holes 161 may be radially formed in the auxiliary inflow member 160 to rotate the air passing therein in one direction, thereby generating a swirling flame. Swirl flame in the present invention is a flame that is generated by the ignition of the fuel in the combustion chamber rises to the top of the combustion chamber and passes through the auxiliary inlet member 160 while rising in a whirl-like shape through the injection hole 161 formed in one direction Means. Such swirling flames may rise to the horizontal pipe 171b through the rising pipe 171a which will be described later. Therefore, the auxiliary inflow member 160 may help to improve the combustion efficiency inside the heating apparatus by generating a swirl flame to maximize the heat of combustion of the fuel.

The fluid circulation unit 170 is disposed above the combustion chamber 110 and the outer case 130 and circulates the fluid by allowing the fluid warmed by the heat generated by the combustion of the fuel in the combustion chamber 110 to move up and down while moving. To make it possible.

 The fluid circulation unit 170 may be composed of an air circulation member 171 and a liquid circulation member 172. Air circulation member 171 is provided with a passage so that air or gas flow therein, such a passage may serve to circulate air or gas from the bottom to the top. Specifically, as shown in FIG. 2, the air circulation member 171 may include a rising pipe 171a, a horizontal pipe 171b, a falling pipe 171c, and an exhaust port 171d.

The riser 171a may be disposed at the center of the apparatus as a tubular tube communicating with an upper portion of the combustion chamber 110. Ascending pipe (171a) is to move the air warmed by the heat generated by the combustion of the fuel in the combustion chamber 110 in the upward direction so as to guide and move the rising air. The rising pipe 171a is formed to be elongated in the vertical direction to move the rising hot air upward. The horizontal tube 171b may communicate with the upper portion of the rising tube 171a to move hot air in the horizontal direction. Referring to FIG. 2, the horizontal tube 171b is a cylindrical tube having a space formed therein, and is a passage for inducing hot air moved through the rising tube 171a disposed at the center of the apparatus to spread in a horizontal direction from the top of the apparatus. . The downcoming pipe 171c is one or more pipes formed to communicate with the lower portion of the horizontal pipe 171b. The downcoming pipe 171c is a plurality of pipes formed to communicate with an outer lower end side of the horizontal pipe 171b and may be a thin pipe having a diameter smaller than that of the horizontal pipe 171b or the rising pipe 171a. The downcoming pipe 171c is a pipe for inducing hot air spread in the horizontal direction through the horizontal pipe 171b to move downward. As shown in FIG. 5, the horizontal tubes 171b are thin cylindrical tubes, and a plurality of horizontal tubes 171b may be disposed radially along a circumference at regular intervals. The air inside the horizontal pipe 171b moves downward along the plurality of falling pipes 171c and is discharged to the outside of the apparatus through the exhaust port 171d. The exhaust port 171d is formed so that the air escaped through the plurality of downcomers 171c may be collected in the cylindrical space and then discharged to the outside through a hole drilled outward in the cylindrical space. The warmed air that has exited through the exhaust port 171d may be recycled by being introduced into waste heat recovery equipment or a heat exchanger.

The liquid circulation member 172 is a passage through which liquid, such as water, can flow. The liquid circulation member 172 is in contact with the air circulation member 171 so that the liquid inside is heated by hot air to improve heating efficiency. do. The liquid circulation member 172 may include a water supply port 172a, a first moving tube 172b, a second moving tube 172c, and a drain port 172d.

The water inlet 172a is an inlet through which one side communicates with the outside to introduce a liquid such as water supplied from the outside into the inside. The first moving tube 172b is formed such that one side thereof is in communication with the water inlet 172a, and is a passage through which water introduced through the water inlet 172a is guided and moved, and is formed to be in contact with the air circulation member 171. It is desirable to be. Specifically, the first moving tube 172b is a passage through which water flows into the inside, and as shown in FIG. 5, it may be a cylindrical passage surrounding the down tube 171c of the air circulation member 171. That is, the first moving tube 172b is a cylindrical passage having a large diameter, and may have a shape in which a plurality of downlight tubes are constantly arranged inside the first moving tube 172b. Since the hot air from the combustion chamber 110 flows inside the downcomers 171c, the water inside the first moving tube 172b in contact with the downcomers 171c is heated by the heat transferred from the hot air. .

As shown in FIG. 2, the second moving tube 172c may be a cylindrical cylinder formed to surround the horizontal tube 171b on the outside of the horizontal tube 171b. Since hot air also flows in the horizontal tube 171b, the water inside the second moving tube 172c, which is in contact with the horizontal tube 171b from the outside of the horizontal tube 171b, is also transferred from the air inside the horizontal tube 171b. It is heated by heat. The water passes through the connecting pipe 172e when the water moves from the first moving pipe 172b to the second moving pipe 172c. A plurality of connection pipes 172e may be installed as passages for connecting the second moving pipes 172c in the first moving pipe 172b. Water moved from the first moving pipe 172b to the second moving pipe 172c through the connecting pipe 172e is discharged to the outside through the drain port 172d. At this time, since the water discharged to the drain port 172d has to move out of the first moving pipe 172b to the second moving pipe 172c located above the first moving pipe 172b, the drain 172d is installed outside the apparatus. By being connected to a pump (not shown in the drawing) or the like, the water inside the moving tube can be moved by the external force or discharged to the outside.

Referring to Figure 2 describes the operation relationship according to each configuration of the bottom-loading wood pellet boiler combustion apparatus of the present invention.

First, the fuel stored in the fuel hopper 123, that is, the wood pellets P are lowered and introduced into the horizontal moving part. The injected fuel is moved horizontally through the space between the horizontal screw 121b and the body by the rotation of the horizontal screw 121b, and is transferred to the vertical moving part, and then transferred upward by the rotation of the vertical screw. When the fuel exits the body of the vertical moving part and is introduced into the combustion chamber 110, the fuel is ignited using a predetermined torch or automatic ignition equipment. The air inside the apparatus is heated by the heat generated by the combustion of the fuel, and the heated air rises upward. When the fuel is ignited and blows air into the combustion chamber 110 through the blower member 140, the combustion speed of the fuel can be increased, and the combustion can be smoothed to improve the combustion efficiency. Air can be continuously blown to the blowing member 140. Blowing member 140 may of course help to improve the speed at which the warmed air rises. The heated air is moved upwardly through the injection hole 161 of the auxiliary inflow member 160 or the upper part of the combustion chamber 110 to the rising pipe 171a, and the warmed air moving along the rising pipe 171a is around the rising pipe 171a. The temperature of the water inside the first moving tube 172b enclosing is increased. Water is supplied to the first moving pipe 172b through the water supply port 172a. The warmed air moves along the rising pipe 171a to reach the horizontal pipe 171b and then moves horizontally to spread radially, and moves downward along the plurality of falling pipes 171c and through the exhaust port 171d. It is discharged to the outside. At this time, the discharged hot air can be recycled to a separate waste heat recovery device. Water in the first moving pipe 172b warmed up by the rising pipe 171a and the falling pipe 171c moves up and down to the second moving pipe 172c along the connecting pipe 172e and is discharged to the outside through the drain 172d. Can be. Heating is achieved by the temperature of this hot air and the water in the moving tube that is warmed up. In addition, as shown in FIG. 2, since the first moving tube 172b surrounds the downcoming pipes 171c, it is difficult to cool the air due to an external influence, and thus heating efficiency may increase. The hot water discharged through the drain port 172d may be supplied again through the water supply port 172b or may be supplied to a separate device using hot water and recycled.

Such a bottom wood pellet boiler combustion apparatus is not limited to the configuration and manner of operation of the embodiments described above. The above embodiments may be configured such that various modifications may be made by selectively combining all or part of the embodiments.

100: wood pellet boiler combustion apparatus 110: combustion chamber
120: fuel input member 121: horizontal mover
121a: horizontal body 121b: horizontal screw
121c: horizontal motor 122: vertical mover
122a: vertical body 122b: vertical screw
122c: vertical motor 130: outer case
131: heat insulation layer 140: blowing member
150: partition 160: auxiliary inflow member
161: injection hole 170: fluid circulation unit
171: air circulation member 171a: riser
171b: horizontal tube 171c: downcomer
171d: exhaust port 172: liquid circulation member
172a: water supply port 172b: first moving tube
172c: second moving tube 172d: drain
172e: Connector P: Wood Pellets

Claims (11)

A combustion chamber 110 surrounded by an outer wall and having a central bottom recessed therein;
A fuel input member 120 communicating with a lower portion of the combustion chamber 110 and injecting fuel into the lower portion of the combustion chamber 110;
An outer case 130 surrounding the combustion chamber 110 outside of the combustion chamber 110;
A blowing member 140 connected to an outer side of the combustion chamber 110 and an inner side of the outer case 130 and blowing air into a space between the combustion chamber 110 and the outer case 130; And
A fluid circulation unit (170) disposed above the combustion chamber (110) and the outer case (130) to allow the fluid warmed by the combustion of fuel in the combustion chamber (110) to circulate while moving up and down; Including;
The fluid circulation unit 170 is composed of an air circulation member 171 and a liquid circulation member 172,
The air circulation member 171 communicates with an upper portion of the combustion chamber 110 and moves along the riser tube 171a for inducing the air warmed up in the combustion chamber 110 to rise upward, and moves along the riser tube 171a. A horizontal pipe 171b which is a passage through which the warmed air moves in a horizontal direction, a plurality of falling pipes 171c for inducing the warmed air moved along the horizontal pipe 171b to descend in a downward direction, and the lower pipe And an exhaust port 171d for discharging the warmed air moved along the field 171c to the outside,
The liquid circulation member 172 is a water inlet 172a through which liquid is introduced from the outside to the inside, and the liquid introduced through the water inlet 172a is guided and moved, and is located on the outer circumference of the riser 171a. Inside the first down pipe 172b, the downcoming pipes 171c are disposed across the top and bottom, and the second moving pipe surrounding the outer wall surface of the horizontal pipe (171b) is located on the upper portion of the horizontal pipe (171b) ( 172c and a connection pipe installed between the outer wall surface of the first moving tube 172b and the outer wall surface of the second moving tube 172c to connect the first moving tube 172b and the second moving tube 172c ( 172e and a drain hole 172d installed in the second moving pipe 172c, and the liquid introduced into the first moving pipe 172b through the water supply port 172a is connected to the rising pipe 171a and the After being heated by the downcoming pipes 171c, the horizontal pipe 171b is introduced into the second moving pipe 172c through the connecting pipe 172e. By heated and then discharged to the drain port (172d),
The combustion chamber 110 is the outer wall is made of a mesh or porous wall,
A partition wall 150 is formed between the combustion chamber 110 and the outer case 130 to surround the combustion chamber 110, and the blower member 140 is connected to the partition wall 150 to thereby blow the air. After the air supplied from the member 140 is supplied to the space formed by the partition wall 150, the air passes through the outer wall of the combustion chamber 110 and flows into the combustion chamber 110.
A plurality of auxiliary inflow members 160 having an injection hole 161 communicating with a space formed by the barrier wall 150 are installed at an upper end of the barrier wall 150 to flow into the space formed by the barrier wall 150. Air is moved to the upper portion of the combustion chamber 110 through the injection port 161 of the auxiliary inlet member 160,
The fuel injection member 120 has a vertical screw 122b and is connected to a lower portion of the combustion chamber 110 to move the fuel in a vertical direction and vertically move the fuel 122 into the combustion chamber 110. Composed of a wood pellet boiler, characterized in that it comprises a horizontal mover 121 having a screw 121b and connected to the middle of the vertical mover 122 to move the fuel in the horizontal direction to the vertical mover 122. Device.
delete delete delete The method according to claim 1,
Inner-type wood pellet boiler combustion apparatus is further formed on the inner wall surface of the outer case 130, the insulation layer 131 made of a refractory material or a heat insulating material to maintain the temperature of the warmed air inside.
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