JP2013024476A - Combustion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combustion device that can perform appropriate combustion while a large amount of material to be burned is being packed into a primary combustion chamber and can further improve combustion performance with a simple configuration.SOLUTION: The combustion chamber is partitioned into a primary combustion chamber 10 including an insertion port 11 of material to be burned and an air supply port and a secondary combustion chamber 20 including an exhaust port 21 by a combustion promotion plate 30 fixed while being hung from an inner surface of a top plate part 2a and formed so that a lower end edge 32 is located at a height a predetermined interval spaced from an inner surface of a top plate part 2b and also provided with a number of through-holes 31, and includes an air introduction pipe 50 provided to extend in the shape of the same from an end plate part 3a on the front side at which an air introduction part 51 is provided to the vicinity of the combustion promotion plate 30, and at part of which on the side of the vicinity of the combustion promotion plate 30, a discharge part 52 is provided, so that air can be introduced from the end plate part 3a on the front side configuring the primary combustion chamber 10 to the vicinity of the combustion promotion plate 30 inside the primary combustion chamber 10.

Description

  The present invention is fixed to a primary combustion chamber having a combustion material inlet and an air supply port and a secondary combustion chamber having an exhaust port, and is fixed in a state suspended from the inner surface of the top plate portion, and has a lower end edge of the bottom plate portion. The present invention relates to a combustion apparatus that has a combustion space partitioned by a combustion promotion plate that is formed to have a required distance from the inner surface and includes a large number of through holes.

  The inventor of the present application has previously obtained a patent for a combustion apparatus that burns all solid combustibles such as soot and has high combustion performance that does not generate smoke and can perform high-temperature combustion. According to the combustion apparatus, by forming one half of the ceiling surface of the combustion chamber with an openable / closable lid, an air supply port that also serves as a combustion material inlet is provided, and the ceiling surface on the opposite side of the air supply port Alternatively, the side surface has an exhaust port to which a chimney is connected, and a combustion promoting plate is suspended from the ceiling surface between the exhaust port and the air supply port, and the lower end edge of the combustion promoting plate By providing a gap in the range of 1/3 to 1/4 of the height of the combustion chamber between the combustion chamber and the floor of the combustion chamber, the primary combustion chamber and the exhaust port where the air supply port opens are opened. The combustion chamber is divided into a secondary combustion chamber, and the combustion promotion plate has a large number of through holes communicating with the primary combustion chamber and the secondary combustion chamber distributed throughout the promotion plate. (Refer to Patent Document 1).

  Furthermore, the inventor of the present application has previously obtained a patent for a smokeless combustion apparatus with high combustion performance that further suppresses the generation of smoke. According to the smokeless combustion apparatus, near the one end of the upper wall constituting the combustion chamber, there is provided a combustion product / air intake serving as both a combustion product inlet and an air supply port. An openable and closable intake lid is installed, and an exhaust port for installing a chimney is provided near the other end on the opposite side of the upper side wall of the combustion chamber. Partitioned by a combustion promotion plate that protrudes and hangs down from the ceiling side wall near the exhaust port between the primary combustion chamber and the secondary combustion chamber, and between the lower edge of the combustion promotion plate and the floor side wall The combustion apparatus is provided with a lower gap communicating with the primary combustion chamber and the secondary combustion chamber, and a large number of through holes communicating with the primary combustion chamber and the secondary combustion chamber are distributed over almost the entire combustion promoting plate. In addition, a dry wood input port is provided on the wall below the exhaust port of the wall that constitutes the secondary combustion chamber. When installing a dry wood injection guide tube at the wood inlet and combusting the combustion product, first input the dry wood from the combustion material / air intake into the primary combustion chamber, perform preliminary combustion, It is characterized by making a high temperature steady state, making a large amount of fire, and spreading the fire over the entire bottom of the combustion chamber (see Patent Document 2).

According to the above combustion apparatus and smokeless combustion apparatus, the combustion promoting plate is effectively heated, so that combustion can be stabilized in a shorter time than ignition, smoke generation can be suppressed, and high temperature combustion can be performed. Any shape of combustible can be burned effectively.
However, in order to further improve the performance, for example, it is conceivable to forcibly send in air with a blower, for example. However, it is necessary to secure a power source, and there is a problem that the apparatus becomes complicated and expensive.

As a solution to this, as a solution, the primary combustion chamber provided with the combustion inlet and the air supply port and the secondary combustion chamber provided with the exhaust port are fixed in a state suspended from the inner surface of the top plate portion. A combustion apparatus having a combustion space partitioned by a combustion promoting plate having a lower end edge formed at a height that is spaced from the inner surface of the bottom plate portion and having a plurality of through holes, An opening is provided in the top plate portion of the secondary combustion chamber, and at least one more through hole equivalent to the combustion promoting plate is provided in the secondary combustion chamber so as to be divided across the opening of the exhaust port. It is conceivable that the combustion promoting plate is fixed in a state where it is suspended from the inner surface of the top plate portion, and the lower end edge is formed so as to have a height that allows a predetermined distance from the inner surface of the bottom plate portion.
However, there remains a problem with a large-sized combustion apparatus that uses a large amount of combusted material in the primary combustion chamber and burns it relatively slowly.

Japanese Patent No. 3066066 (Claim 1, FIG. 1) Japanese Patent No. 4465013 (Claim 1, FIG. 1)

The problem to be solved regarding the combustion apparatus is that it is difficult to further improve the combustion performance of the combustion apparatus and smokeless combustion apparatus without increasing the complexity and cost of the apparatus. In particular, it has been difficult to perform appropriate combustion in a state where a large amount of combustion products are packed in the primary combustion chamber.
Therefore, an object of the present invention is to provide a combustion apparatus capable of performing appropriate combustion in a state where a large amount of combustion products are packed in the primary combustion chamber, and further improving the combustion performance, despite a simple configuration. It is to provide.

The present invention has the following configuration in order to achieve the above object.
According to one aspect of the combustion apparatus according to the present invention, the combustion chamber is suspended from the inner surface of the top plate portion in the primary combustion chamber provided with the combustion inlet and the air supply port and the secondary combustion chamber provided with the exhaust port. A combustion apparatus having a combustion space partitioned by a combustion promoting plate that is fixed and formed so that a lower end edge is at a height that is spaced from the inner surface of the bottom plate portion and includes a plurality of through holes, The combustion acceleration plate from the front end plate portion provided with an air introduction portion so that air can be introduced from the front end plate portion constituting the primary combustion chamber to the vicinity of the combustion promotion plate in the primary combustion chamber. And an air introduction pipe provided with an air discharge portion at a portion near the combustion promoting plate.

Moreover, according to one form of the combustion apparatus concerning this invention, a pair of said air introduction pipes can be arranged in parallel by the lower side of the said primary combustion chamber.
Moreover, according to one form of the combustion apparatus concerning this invention, the said air discharge part is comprised by the some discharge hole provided in the surrounding wall of the said air introduction pipe, It can be characterized by the above-mentioned.

Further, according to one aspect of the combustion apparatus of the present invention, the plurality of discharge holes are open on the upper side and the inner side of the peripheral wall of the air introduction pipe so that the air can be discharged to the upper side and the inner side. Can be a feature.
Moreover, according to one form of the combustion apparatus concerning this invention, the ignition port is provided in the part which is the part of the surrounding wall board part which comprises the said primary combustion chamber, and is the vicinity side of the said combustion promotion board. Can be characterized.

  According to the combustion apparatus of the present invention, despite the addition of a simple configuration, the primary combustion chamber can be appropriately burned with a large amount of combusted material packed therein, and the combustion performance can be further improved. Has an effect.

It is sectional drawing which shows the form example of the combustion apparatus which concerns on this invention. It is a front view of the example of a form of FIG. It is a side view of the example of a form of FIG. It is sectional drawing concerning the AA line shown in FIG.

Hereinafter, the form example which concerns on the combustion apparatus of this invention is demonstrated in detail based on an accompanying drawing (FIGS. 1-4).
This combustion apparatus is fixed to a primary combustion chamber 10 provided with an inlet 11 and an air supply port for combustion products and a secondary combustion chamber 20 provided with an exhaust port 21 so as to be suspended from the inner surface of the top plate portion 2a. The lower end edge 32 has a combustion space partitioned by a combustion promoting plate 30 that is formed so as to have a required distance from the inner surface of the bottom plate portion 2b and includes a large number of through holes 31. The primary combustion chamber 10 and the secondary combustion chamber 20 are arranged in a horizontal direction, and a horizontal combustion device is formed. In addition, the combustion promotion plate 30 of the present embodiment is a partition plate whose basic shape is a flat plate and is a metal plate capable of red heat.

  Reference numeral 50 denotes an air introduction pipe, and an air introduction portion 51 is provided so that air can be introduced from the front end plate portion 3 a constituting the primary combustion chamber 10 to the vicinity of the combustion promotion plate 30 in the primary combustion chamber 10. The front end plate portion 3 a is formed in a tubular shape from the vicinity of the combustion promotion plate 30, and an air discharge portion 52 is provided at a portion near the combustion promotion plate 30. The end face located at the back of the primary combustion chamber 10 at the tip of the air introduction pipe 50 of this embodiment is closed by the end plate 54. The air introduction portion 51 is a form of the air supply port described above. Reference numeral 55 denotes a lid, which is provided so that the air introduction part 51 can be opened and closed. The lid body 55 of this embodiment can be displaced in the front-rear direction with a screw to adjust the opening / closing of the opening (intake port 51a) of the air introduction part 51.

  According to this, the air for combustion (combustion air) is introduced without being blocked by the packed combustibles, and can surely flow into the vicinity of the combustion promoting plate 30. For this reason, complete combustion is possible in the inner part of the furnace (the inner part of the primary combustion chamber 10 and the secondary combustion chamber 20). Since combustion air can be supplied to the back of the primary combustion chamber 10 in this way, when ignition is performed near the combustion promoting plate 30, the spread rate of fire to the front side end plate portion 3a where there is a soot (combustion input 11) is increased. Slow down to allow long burning. On the other hand, when ignited from the front end plate portion 3a, it burns at once, and thus burns in a short time, and smoke is easily generated due to air shortage at the initial stage of combustion.

Further, fresh air for combustion is heated while passing through the air introduction pipe 50. Since the combustion air is heated in this way, it is possible to prevent the combustion product during the combustion from being cooled and inhibit the combustion, thereby improving the combustion performance.
As described above, since combustion is possible for a long time and combustion performance can be improved, it can be suitably used for applications that require heat for a long time such as heating in a greenhouse.

  Further, in the present embodiment, the pair of air introduction pipes 50 and 50 are located below the primary combustion chamber 10 at positions close to the inner surface of the peripheral wall plate portion 2 so as to open the center of the primary combustion chamber 10. It is installed side by side. According to this, combustion air can be supplied to the back of the primary combustion chamber 10 in a well-balanced manner, and the combustion performance can be further improved. Note that the number of the air introduction pipes 50 is not limited to two as in this embodiment, and may be one or three or more. In the present embodiment, the combustion chamber body having a diameter of 970 mm has a well-balanced combustion air supply structure by disposing two air introduction pipes 50 having a diameter of 115 mm. Further, the air introduction pipe 50 is fixed in the primary combustion chamber 10 via a support piece 15 and a screw standing on the inner surface of the peripheral wall plate portion 2 and is provided in a screwing exchange type.

  Further, the air discharge portion 52 of the present embodiment is configured by a plurality of discharge holes 53 provided in the peripheral walls of the air introduction pipes 50 and 50. According to this, combustion air can be appropriately discharged in a balanced manner within a required range. In addition, the form of the air discharge part 52 is not limited to the thing by the some discharge hole 53, The opening by other forms, such as slit shape and net shape, may be sufficient.

  Further, the plurality of discharge holes 53 of the present embodiment are opened on the upper side and the inner side of the peripheral wall of the air introduction pipe 50 so that the air can be discharged upward and inward. According to this, air can be appropriately supplied to the combustion space that requires fresh air. Therefore, the combustion products can be combusted in a suitable balance, and the combustion efficiency can be improved.

  In the combustion apparatus according to the present invention, the ignition port 60 is appropriately provided by being provided in a portion of the peripheral wall plate portion 2 constituting the primary combustion chamber 10 and in the vicinity of the combustion promotion plate 30. Can be easily ignited. According to this, it becomes easy to ignite from the back of the primary combustion chamber 10, and as described above, the fire spread rate to the front end plate portion 3a is slowed down, and combustion for a long time is enabled. Reference numeral 61 denotes a slide lid of an ignition port, which has a handle, and is provided by being guided by the ignition port 60 so that the ignition port 60 can be opened and closed by sliding with the handle.

The exhaust port 21 of this embodiment is provided in the top plate portion 2 a of the secondary combustion chamber 20. Further, the exhaust port 21 of the present embodiment is at the center in the left-right direction of the secondary combustion chamber 20, and is connected to the exhaust port 21 so that the chimney 5 extends substantially vertically upward from the top surface.
Further, the secondary combustion chamber 20 of the present embodiment is provided with a width in the front-rear direction slightly larger than the diameter of the chimney 5 and is smaller than the volume of the primary combustion chamber 10.

  According to the combustion apparatus including the combustion promoting plate 30 as in the embodiment according to the present invention, the secondary combustion chamber 20 can be more effectively heated by a suitable convection effect of the combustion air, and the exhaust of the combustion air can be smoothly performed. There is a rectifying effect to improve combustion performance.

Moreover, what is necessary is just to set the space | interval of the lower end edge 32 of the some combustion promotion board 30 and the inner surface of the baseplate part 2b so that the space | gap which can distribute | circulate combustion air appropriately is provided. In the present embodiment, the interval between the lower edge 32 of the plurality of combustion promoting plates 30 and the inner surface of the bottom plate portion 2b is provided at about 1/3 of the height of the combustion chamber.
Moreover, it is good for the opening rate of many through-holes 31 provided in the combustion promotion board 30 to be 15%-25%. The large number of through holes 31 have a function of automatically correcting when the balance of the flow of combustion air flowing from the primary combustion chamber 10 to the secondary combustion chamber 20 is about to be lost, and stable combustion. Can be realized.

  In this embodiment, the combustion space including the primary combustion chamber 10 and the secondary combustion chamber 20 is formed by the pair of front and rear end plate portions 3a and 3b and the cylindrical peripheral wall plate portion 2, and the combustion promoting plate. 30 and the inner surface of the rear end plate portion 3b constituting the secondary combustion chamber 20 are arranged in parallel at a required interval.

  In this embodiment, a combustion space including the primary combustion chamber 10 and the secondary combustion chamber 20 is formed by the pair of front and rear end plate portions 3a and 3b and the cylindrical peripheral wall plate portion 2, and the primary combustion chamber. The front end plate portion 3a of 10 is provided with an inlet 11 (a soot) for combustion products. According to this, it can be set as the suitable form which there is little leakage of combustion air and it is easy to throw a combustion substance into the suitable position of a combustion chamber. In this embodiment, reference numeral 13 denotes a slide lid, which has a handle, and guides the combustion material input port 11 so that the combustion material input port 11 can be opened and closed by sliding with the handle. Has been provided.

  The peripheral wall plate portion 2 can be formed in a cylindrical shape such as a rectangular tube shape shown in FIG. 2 or a cylindrical shape shown in FIG. In the case of a rectangular tube shape, it is constituted by a top plate portion 2a, a bottom plate portion 2b, and left and right side plate portions. Reference numeral 70 denotes a base plate on which the main body is placed. Reference numeral 71 denotes a support frame, which supports and fixes the main body to the base plate.

Next, usage modes of this embodiment will be described below.
Combustion material is filled into the primary combustion chamber 10 through the throat (combustion material input port 11). A lot of cardboard or the like is put as an ignition material from the ignition port 60 and ignited by a match or the like. At the time of ignition, the combustion material inlet 11 is closed, the air inlet 51 is opened, and the ignition port 60 is half-opened until a flame is generated. When the flame is sufficiently raised, the igniter 60 is closed. When combustion starts, a draft works on the chimney by the heat of combustion. Due to the suction force of the draft, the air that has entered from the air inlet 51 a of the air introduction part 51 passes through the air introduction pipe 50 and is discharged from the air discharge part 52. Combustion continues to burn for a long time in the direction from the back of the primary combustion chamber 10 toward the front end plate portion 3a having the throat.

  According to this, it can prevent burning at a stretch, and can obtain heat quantity appropriately over a long time. For this reason, the use as a combustion apparatus spreads greatly, and the biomass used as combustion substances, such as a waste organic substance, can be used effectively effectively.

  As described above, the present invention has been described in various ways with preferred embodiments. However, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. That is.

2 peripheral wall plate portion 2a top plate portion 2b bottom plate portion 3a front end plate portion 3b rear end plate portion 5 chimney 10 primary combustion chamber 11 inlet of combustion product 20 secondary combustion chamber 21 exhaust port 30 combustion promotion plate 31 penetration Hole 32 Lower end edge 50 Air introduction pipe 51 Air introduction part 52 Air discharge part 53 Discharge hole 54 End plate 55 Cover body 60 Ignition port

Claims (5)

Fixed to the primary combustion chamber equipped with the combustion inlet and the air supply port and the secondary combustion chamber equipped with the exhaust port, the bottom edge is fixed from the inner surface of the bottom plate portion. A combustion apparatus having a combustion space partitioned by a combustion promotion plate that is formed to be spaced apart and has a large number of through holes,
Combustion promotion from the front end plate portion provided with an air introduction portion so that air can be introduced from the front end plate portion constituting the primary combustion chamber to the vicinity of the combustion promotion plate in the primary combustion chamber. A combustion apparatus comprising an air introduction pipe extending in a tubular shape to the vicinity of a plate and provided with an air discharge portion at a portion near the combustion promoting plate.   The combustion apparatus according to claim 1, wherein the pair of air introduction pipes are arranged side by side below the primary combustion chamber.   The combustion apparatus according to claim 1 or 2, wherein the air discharge section is configured by a plurality of discharge holes provided in a peripheral wall of the air introduction pipe.   The combustion apparatus according to claim 3, wherein the plurality of discharge holes are open on an upper side and an inner side of a peripheral wall of the air introduction pipe so that air can be discharged upward and inward.   5. The ignition port according to claim 1, wherein an ignition port is provided in a portion of the peripheral wall plate portion that constitutes the primary combustion chamber and that is in the vicinity of the combustion promotion plate. Combustion device.

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