JP2006300493A - Heating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating system having a low-cost structure, capable of keeping high-efficiency combustion even if a large amount of fuel is inputted at a time and capable of using a crushed construction waste material or the like as a fuel. <P>SOLUTION: This heating system is provided with: a hopper part 1 for inputting a wood waste-based fuel W therein; a combustion chamber 4 connected to a lower part of the hopper part 1 for reacting a gas generated from the wood waste-based fuel W with air to burn it; a combustion gas guide passage 5 connected to the combustion chamber 4 for guiding the burnt gas to discharge it to the outside; and a fan 6 connected to the combustion gas guide passage 5 for forcibly forming flows of air and gas to the combustion gas guide passage 5 from the combustion chamber 4. The combustion chamber 4 is provided with an upper partition plate 11 nearly horizontally arranged in a boundary to the hopper part 1 and having a plurality of dropping holes formed therein. The hopper part 1 is provided with an air introduction pipe part 12 nearly horizontally arranged in the vicinity of a surface of the upper partition plate 11, having at least one end opened to the outside, and having a plurality of air outlets on a lower circumferential surface. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heating device using wood waste fuel generated from construction waste and the like.

  Conventionally, as a heating device using wood waste fuel such as finely pulverized construction waste and wood pellets, for example, Patent Document 1 is provided in communication with a combustion chamber provided in the furnace body and above the combustion chamber. A solid fuel combustion apparatus having a secondary combustion chamber has been proposed. In the apparatus described in Patent Document 1, the combustion gas generated by burning solid fuel in the combustion chamber rises and secondary combustion occurs in the secondary combustion chamber.

  Further, in Patent Document 2, while supplying wood pellets to the bottom of the combustion chamber with a fuel supply mechanism using a screw, air is blown into the combustion chamber, and the gas from the burned wood pellets rises while spirally swirling A heating device is proposed.

Japanese Utility Model Publication No. 59-18115 (claim for utility model registration, Fig. 2) JP 2003-139328 A (Claims, FIG. 1)

The following problems remain in the conventional technology.
In the apparatus described in Patent Document 1, in order to ignite the upper part of the input solid fuel and cause the combustion gas to undergo secondary combustion in the secondary combustion chamber, when a large amount of solid fuel is input into the combustion chamber at once, the solid fuel Ashes accumulated on the top of the solid fuel, it was difficult to fully burn the solid fuel to the inside and the bottom. For this reason, the solid fuel has to be continuously supplied little by little, and when the solid fuel is supplied in a large amount, the combustion efficiency is lowered or the combustion stops in the middle. In addition, the apparatus described in Patent Document 2 has an advantage that, for example, the need for continuous injection of solid fuel can be saved because an appropriate amount of wood pellets is supplied at any time by a fuel supply mechanism using a screw. The apparatus becomes complicated and increases the number of members, which disadvantageously increases manufacturing costs. In addition, since the fuel is supplied by a screw, the fuel cannot be supplied smoothly unless the fuel has a uniform shape and size, and the shape of the fuel is not uniform, such as crushed construction waste, and non-combustible materials are mixed. If so, there is a high risk that the fuel supply mechanism will break down.

  The present invention has been made in view of the above-described problems, and has a low-cost structure, can maintain high-efficiency combustion even when a large amount of fuel is injected at one time, and further uses crushed construction waste as fuel. It aims at providing the heating device which can do.

  The present invention employs the following configuration in order to solve the above problems. That is, the heating device of the present invention causes the hopper portion into which the wood waste fuel is introduced, the gas generated from the wood waste fuel that is connected to the lower portion of the hopper portion and burns, and the introduced air to react and burn. A combustion chamber, a combustion gas induction path connected to the combustion chamber for inducing and discharging the burned gas, and an air and a gas connected to the combustion gas induction path from the combustion chamber to the combustion gas induction path Gas flow forming means for forcibly forming a flow, wherein the combustion chamber is arranged substantially horizontally at the boundary with the hopper portion, and a plurality of drop holes having an inner diameter smaller than that of the wood chip fuel are formed. A partition plate, wherein the hopper portion is disposed substantially horizontally in the vicinity of the partition plate, has at least one end opened to the outside, and has an air introduction tube portion having a plurality of air outlets on the lower peripheral surface. That And butterflies.

  In this heating device, even if a large amount of wood waste fuel is put into the hopper portion with a seed fire on the wood waste fuel on the partition plate, the air introduction cylinder portion can Air is introduced into the cylinder from the open end, and air is supplied from the air outlet toward the lower partition plate, so that the combustion of the wood waste fuel on the partition plate is maintained. Moreover, the ash produced by the combustion falls into the combustion chamber. Further, the gas generated by gasification combustion of the wood waste fuel and the supplied air are drawn into the lower combustion chamber through the drop hole of the partition plate, and the gas and air react with each other in the combustion chamber. Next burn. At this time, the partition plate is brought into a high temperature state by the combustion of the wood waste fuel, and the air is introduced in a high heat state by raising the temperature of the air introduction cylinder portion, and further the combustion of the wood waste fuel and the secondary combustion are promoted. The The high-temperature gas generated by the secondary combustion is discharged to the outside from the combustion chamber through the combustion gas induction path.

  In addition, the heating device of the present invention includes an incombustible material removal mechanism capable of vibrating the partition plate from the outside. That is, in this heating device, for example, when crushed construction waste is used as wood scrap fuel, and the incombustible material such as pebbles and metal fragments contained in the partitioning hole closes the falling hole of the partition plate, the incombustible material is removed. By vibrating the partition plate by the mechanism, it is possible to roll incombustible material and remove it from the drop hole to obtain a good combustion state again.

  Furthermore, in the heating device of the present invention, the partition plate is movable in the horizontal direction, and the non-combustible material removal mechanism has an operation unit that one side can be connected to the partition plate and the other protrudes to the outside. It is characterized by that. That is, in this heating device, since the incombustible material removal mechanism has an operation part that can be connected to a horizontally movable partition plate, the partition plate can be moved horizontally by connecting the operation part to the partition plate. Can be easily vibrated from the outside to remove incombustible materials.

  Further, the heating device of the present invention includes: the partition plate fixed to the combustion chamber; and the upper partition plate arranged on the lower partition plate and movable in the horizontal direction. The incombustible material removing mechanism is connectable to the upper partition plate. That is, in this heating device, the incombustible material removal mechanism can be connected to the upper partition plate that is horizontally movable with respect to the lower partition plate. The degree of overlap of the fall holes can be adjusted. Thereby, the quantity of the gas and air which flow into a combustion chamber via a fall hole can be adjusted, and combustion adjustment becomes possible.

  In the heating device of the present invention, a secondary air adjustment hole capable of adjusting the amount of air flowing into the combustion chamber is formed in a side wall of the combustion chamber. That is, in this heating device, since the secondary air adjustment hole is formed in the side wall of the combustion chamber, the amount of air flowing into the combustion chamber can be adjusted separately from the air supply from the air introduction cylinder portion. This also makes it possible to adjust the combustion.

The present invention has the following effects.
That is, according to the heating device according to the present invention, since the air introduction cylinder portion is arranged in the vicinity on the partition plate, the air from the air introduction cylinder portion can be obtained even if a large amount of wood waste fuel is introduced into the hopper portion. Combustion can be maintained on the partition plate by supplying the ash and dropping the combustion chamber of ash. Further, highly efficient combustion can be realized by guiding the gas generated in the gasification combustion of the wood waste fuel and the supply air to the lower combustion chamber for secondary combustion. Thus, efficient combustion can be satisfactorily maintained by a simple and low-cost structure of the partition plate and the air introduction tube portion having a predetermined arrangement relationship without using a movable mechanism such as a screw.

  Hereinafter, an embodiment of a heating device according to the present invention will be described with reference to FIGS. 1 to 6.

  The heating device of the present embodiment is a device that heats outdoors or indoors by burning wood waste fuel such as construction waste material crushed into chips, as shown in FIG. 1 to FIG. 4. A hopper part 1 into which fuel W is introduced; a furnace body 2 that places the hopper part 1 in a connected state at the upper end of one end and burns gas generated by gasification combustion of the wood waste fuel W; A chimney portion 3 that is erected in a connected state at the upper end on the other end side and discharges the exhaust gas after combustion to the outside.

  The furnace body 2 includes a combustion chamber 4 provided at a lower portion of the hopper portion 1 to cause the gas generated from the burned wood waste fuel W and the introduced air to react with each other and burn, and a gas that is connected to the combustion chamber 4 and burned. Is connected to the combustion gas guide path 5 and the flow of air and gas from the combustion chamber 4 to the combustion gas guide path 5 is forcibly formed. And a fan (gas flow forming means) 6.

  The hopper portion 1 includes a rectangular tubular hopper body 7 and a hopper lid portion 8 that closes and opens an upper opening of the hopper body 7. Further, as shown in FIGS. 5 and 6, the combustion chamber 4 is a lower partition in which a plurality of dropping holes 9 having a smaller inner diameter than the wood waste fuel W are formed substantially horizontally at the boundary with the hopper portion 1. A plate 10 and an upper partition plate 11 are provided. The lower partition plate 10 and the upper partition plate 11 are made of a metal such as stainless steel, and are arranged one above the other so that the upper partition plate 11 can move horizontally with respect to the lower partition plate 10. A slight clearance is provided between the upper partition plate 11 and the lower partition plate 10.

  That is, the lower partition plate 10 is fixed to the upper part of the combustion chamber 4, and the upper partition plate 11 is placed on the lower partition plate 10 so as to be movable in the horizontal direction with respect to the lower partition plate 10. Has been. The upper partition plate 11 has a width in the length direction of the furnace body 2 set to be narrower than that of the lower partition plate 10, and a connecting portion 11 a fixed to the lower surface is provided below through the insertion hole 10 a of the lower partition plate 10. Protruding. Note that a connecting hole 11b is formed in the connecting portion 11a.

Further, the hopper portion 1 includes an air introduction tube portion 12 that is disposed substantially horizontally in the vicinity of the upper partition plate 11, both ends open to the outside, and a plurality of air outlets 12 a on the lower peripheral surface. Yes. This air introduction cylinder part 12 is formed in a cylindrical shape with a metal such as stainless steel.
Further, the combustion chamber 4 can be connected to the horizontally movable upper partition plate 11 via a connecting portion 11a as an incombustible material removing mechanism capable of vibrating the upper partition plate 11 from the outside, and the other is externally connected. It has an operation rod (operation part) 13 protruding in the direction. The operating rod 13 is inserted from the side wall of the combustion chamber 4 and its tip is bent in an L shape. Then, the operating rod 13 is connected to the upper partition plate 11 by inserting the tip portion into the connecting hole 11b of the connecting portion 11a.

Further, the side wall of the combustion chamber 4 is provided with a secondary air adjustment hole 14 capable of adjusting the amount of air flowing into the combustion chamber 4 by arbitrarily adjusting the opening amount, and ash in the combustion chamber 4 after use. An openable and closable ash outlet 15 for extraction and a first observation window 16 using heat-resistant glass or the like capable of observing the state in the combustion chamber 4 are provided.
An upper portion of the combustion gas guide passage 5 is provided with a guide passage cover portion 17 that can be opened and closed during maintenance or the like in the combustion gas guide passage 5. Further, a second observation window 18 using heat-resistant glass or the like that can observe the state in the combustion gas guiding path 5 is provided on the side wall of the combustion gas guiding path 5.

A fan 6 is attached to a fan fixing base 19 on the other end side of the furnace body 2. A blower pipe (gas flow forming means) 20 is connected to the blower opening of the fan 6, and the blower pipe 20 is arranged vertically to the middle of the chimney 3 through the other end side of the furnace body 2. Yes.
A handle portion 21 is attached to one end side of the furnace body 2. Casters 23 are fixed to the lower four corners of the furnace body 2 via support leg portions 22. Thereby, a heating apparatus can be moved by holding the handle part 21 and pushing.

  Next, the usage method of the heating apparatus of this embodiment is demonstrated.

First, the fan 6 is driven in advance, and air is blown upward from the blower pipe 20 into the chimney 3. As a result, an upward air flow is generated in the chimney 3, thereby generating an air flow from one end side to the other end side in the combustion gas guiding path 5, and from the opening end of the air introduction cylinder portion 12 to the combustion chamber. Air flow into 4 occurs simultaneously.
Next, the hopper lid portion 8 is opened, a small amount of wood waste fuel W is put on the upper partition plate 11 in the hopper portion 1, and ignited to form a seed fire.

Further, in this state, all the remaining wood waste fuel W is put into the hopper 1 and the upper portion of the hopper 1 is closed by the hopper lid 8.
At this time, even if a large amount of wood waste fuel W is introduced into the hopper 1, air is introduced into the cylinder from the opening end of the air introduction cylinder 12 due to the air flow suction effect by the fan 6, and the air is discharged from the air outlet 12 a. By supplying air toward the lower upper partition plate 11, combustion of the wood waste fuel W on the upper partition plate 11 is maintained. Further, the ash generated by the combustion can be prevented from being deposited on the upper partition plate 11 by falling into the combustion chamber 4.

  Further, the gas generated by gasification combustion of the wood waste fuel W and the supplied air are drawn into the lower combustion chamber 4 through the drop holes 9 of the upper partition plate 11 and the lower partition plate 10 and further burned. In the chamber 4, the gas and air react to cause secondary combustion. At this time, combustion of the wood waste fuel W causes the upper partition plate 11 and the lower partition plate 10 to be in a hot grilled ball state, and the air introduction cylinder portion 12 is also heated to introduce air in a high heat state. Furthermore, combustion and secondary combustion of the wood waste fuel W are promoted. The high-temperature gas generated by the secondary combustion is discharged from the chimney 3 through the combustion chamber 4 and the combustion gas guide path 5 to the outside.

  If the wood waste fuel W is burned and incombustible materials such as pebbles and metal pieces are mixed in the wood waste fuel W, these incombustible materials accumulate on the upper partition plate 11. At this time, these incombustibles fit into the drop hole 9 of the upper partition plate 11, and the flow of gas and air from the drop hole 9 to the combustion chamber 4 may be hindered, which may reduce the combustion efficiency. At this time, the upper partition plate 11 is vibrated in the horizontal direction by the operating rod 13, and the incombustible material on the drop hole 9 is rolled off to be removed from the drop hole 9 to prevent the drop hole 9 from being clogged. .

  Further, when it is necessary to observe the combustion state in the combustion chamber 4 from the first observation window 16 and adjust the amount of air to be supplied, the upper partition plate 11 is moved with respect to the lower partition plate 10 by the operation rod 13. By horizontally moving the upper partition plate 11 and the lower partition plate 10 in the upper and lower drop holes 9, the amount of air supplied to the combustion chamber 4 through the drop hole 9 is adjusted. Furthermore, by adjusting the opening amount of the secondary air adjusting hole 14, the amount of air directly supplied from the outside to the combustion chamber 4 can be adjusted.

  Thus, in this embodiment, since the air introduction cylinder part 12 is arranged in the vicinity on the upper partition plate 11, the air introduction cylinder part 12 even if a large amount of wood waste fuel W is introduced into the hopper part 1. Combustion can be maintained on the upper partition plate 11 by supplying high-temperature air from. Moreover, highly efficient combustion is realizable by inducing | guiding | deriving the gas and supply air which were generated by gasification combustion further to the lower combustion chamber 4, and performing secondary combustion.

  Further, since the upper partition plate 11 can be vibrated from the outside by the operation rod 13, the crushed construction waste material or the like is used as the wood waste fuel W, and the incombustible material such as pebbles or metal pieces contained therein is used as the upper partition plate. 11, when the combustion is weakened by closing the drop hole 9, the upper partition plate 11 is vibrated by the operating rod 13 to roll off the noncombustible material and remove it from the drop hole 9 to obtain a good combustion state again. Can do.

  Furthermore, by moving the upper partition plate 11 horizontally with respect to the lower partition plate 10 with the operation rod 13, the overlapping state of the drop holes 9 of both partition plates can be adjusted. Thereby, the quantity of the gas and air which flow into the combustion chamber 4 through the drop hole 9 can be adjusted, and combustion adjustment becomes possible. Further, since the secondary air adjustment hole 14 is formed in the side wall of the combustion chamber 4, the amount of air flowing into the combustion chamber 4 can be adjusted separately from the air supply from the air introduction cylinder portion 12. This also makes it possible to adjust the combustion.

  The technical scope of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

For example, in the heating device of the above-described embodiment, a heat exchanger may be connected to the combustion gas guiding path 5 and indoor air may be introduced into the heat exchanger to warm the indoor air.
Moreover, in the said embodiment, the crushed construction waste material etc. are used as the wood waste fuel W, However, You may use another wood waste fuel. For example, various kinds of wood such as canna scraps, wood scraps, wood pellets, firewood and raw wood chips generated at a woodworking plant or a construction shop may be used as wood scrap fuel.

It is a side view which shows the heating apparatus of one Embodiment which concerns on this invention. It is sectional drawing which shows the heating apparatus of this embodiment. It is a front view which shows the heating apparatus of this embodiment. It is a top view which shows the heating apparatus of this embodiment. In the heating apparatus of this embodiment, it is a top view of the principal part which shows the partition plate and air introduction cylinder part seen from the hopper part. In the heating apparatus of this embodiment, it is sectional drawing of the principal part which shows the positional relationship of a partition plate and an air introduction cylinder part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Hopper part, 2 ... Furnace main body, 3 ... Chimney part, 4 ... Combustion chamber, 5 ... Combustion gas induction path, 6 ... Fan (gas flow formation means), 9 ... Drop hole, 10 ... Lower partition plate, 11 DESCRIPTION OF SYMBOLS ... Upper partition plate, 12 ... Air introduction cylinder part, 12a ... Air blowing port, 13 ... Operation rod (operation part), 14 ... Secondary air adjustment hole, 20 ... Blower pipe (gas flow formation means), W ... Wood chip system fuel

Claims (5)

A hopper section into which wood waste fuel is introduced;
A combustion chamber that is connected to the lower part of the hopper and burns by reacting the gas generated from the burned wood waste fuel and the introduced air;
A combustion gas induction path connected to the combustion chamber for inducing and discharging the burned gas;
A gas flow forming means connected to the combustion gas guiding path and forcibly forming a flow of air and gas from the combustion chamber to the combustion gas guiding path;
The combustion chamber is provided with a partition plate that is arranged substantially horizontally at a boundary with the hopper portion and has a plurality of drop holes having an inner diameter smaller than that of the wood chip fuel;
The hopper portion is provided with an air introduction tube portion that is disposed substantially horizontally in the vicinity of the partition plate, has at least one end opened to the outside, and has a plurality of air outlets on the lower peripheral surface. Heating device. The heating device according to claim 1, wherein
A heating device comprising an incombustible material removing mechanism capable of vibrating the partition plate from the outside. The heating device according to claim 2, wherein
The partition plate is movable in the horizontal direction,
The incombustible material removal mechanism has an operation unit in which one can be connected to the partition plate and the other protrudes to the outside. The heating device according to claim 3,
The lower partition plate fixed to the combustion chamber;
An upper partition plate arranged on the lower partition plate and movable in the horizontal direction,
The heating device, wherein the incombustible material removing mechanism is connectable to the upper partition plate. In the heating device according to any one of claims 1 to 4,
A heating device, wherein a secondary air adjustment hole capable of adjusting an amount of air flowing into the combustion chamber is formed in a side wall of the combustion chamber.

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