JP3596149B2 - Combustor exhaust system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an exhaust device in a combustor that can be used for a hot water supply device or the like.
[0002]
[Prior art]
In a combustor used in an oil hot water supply device, a forced intake / exhaust type combustor, a forced exhaust type combustor, a natural exhaust type combustor, etc., depending on the type of intake / exhaust system, such as the way of intake of combustion air and the way of exhaust gas exhaust. It is classified as an exhaust type combustor. In that case, conventionally, even if the type of intake and exhaust is different even in the same combustor, a dedicated exhaust device is attached to each of the different types of intake and exhaust.
[0003]
[Problems to be solved by the invention]
However, in the case of installing a different dedicated exhaust device for each of the different types of intake and exhaust of the same combustor as in the above-described conventional device, a model with a particularly small number of production units, for example, a forced intake and exhaust type (FF type) combustor In the case of a forced exhaust type (F type) combustor, as long as the exhaust device attached to the combustor is manufactured as a dedicated device for each intake and exhaust type, there is a problem that the manufacturing cost of the mold and the like increases. Was.
[0004]
Therefore, the present invention solves the above-described problems of the conventional device, and enables the members used for the exhaust device to be shared even if the type of the intake / exhaust system is different for the combustors having the same combustor portion, thereby reducing the number of parts. It is an object of the present invention to provide a combustor exhaust device that can reduce the cost and the cost required for mold production and the like, and has good assemblability.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the exhaust device for a combustor according to the present invention guides exhaust gas burned in a combustion chamber to a muffler chamber, and further guides the exhaust gas to an exhaust gas collective chamber disposed above the muffler chamber. An exhaust device in a combustor that discharges the exhaust gas to an exhaust stack, wherein the exhaust gas collecting chamber forms a partition with the muffler chamber and has a bottom plate provided with an exhaust gas inlet from the muffler chamber; A barrel that forms a side peripheral wall, a top plate that is attached to the barrel to form a top wall of the exhaust gas collecting chamber, and that opens an exhaust gas outlet to the exhaust cylinder; Before being attached to the body tube, the heat-insulating inner wall body forming a heat-insulating inner wall along the side peripheral wall and the top wall of the exhaust gas collecting chamber. Multiple types of exhaust gas ports with different diameters are provided in the heat-insulating inner wall. By changing the horizontal direction when fitting the heat-insulating inner wall body into the barrel, one of the plurality of types of exhaust gas passages is configured to communicate with the exhaust gas outlet of the top plate. This is one of the features.
Further, in addition to the first feature, the exhaust device for a combustor according to the present invention further comprises an exhaust gas passage that is communicated when the exhaust gas outlet of the top plate communicates with any of the exhaust gas openings of the heat insulating inner wall. A second feature is that a confirmation means for confirming the type of the intake / exhaust system corresponding to the mouth is provided.
[0006]
In the first aspect of the present invention, the exhaust gas generated in the combustion chamber is guided to a silencing chamber to be muffled, and is guided from the silencing chamber to an exhaust gas collecting chamber through an exhaust gas inlet provided in a bottom plate of the exhaust gas collecting chamber. . The exhaust gas collected in the exhaust gas collecting chamber is discharged to the exhaust stack through one of the exhaust gas passages of the heat-insulating inner wall and the exhaust gas outlet of the top plate communicating therewith.
When assembling the exhaust gas collecting chamber, simply change the horizontal direction of the heat-insulating inner wall fitted into the barrel, select the exhaust gas outlet with a diameter corresponding to the desired intake and exhaust type, and select the top plate. Can be communicated with the exhaust gas outlet.
The diameter of the exhaust gas outlet and the exhaust cylinder that are opened to the top plate are made larger than the diameters of the plurality of exhaust gas openings that are opened to the top wall-side heat-insulating inner wall portion of the heat-insulating inner wall, so that each exhaust gas opening is It is possible to control the exhaust status according to the caliber.
Two types of exhaust gas passages that open to the heat-insulating inner wall can be provided corresponding to variations of a forced intake / exhaust type (FF type) and a forced exhaust type (F type). Accordingly, exhaust gas passages having different diameters may be additionally provided.
Further, according to the second feature, the heat-insulating inner wall is fitted into the barrel, and the top plate is further attached to the barrel, so that after the exhaust gas collecting chamber is assembled, the exhaust gas passage communicated therewith. By the confirmation means for confirming the type of the corresponding intake / exhaust system, the exhaust gas inlet of the heat-insulating inner wall body that is actually connected to the exhaust gas outlet of the top plate matches the type of the intake / exhaust system that is to be assembled from the beginning. It can be easily confirmed whether or not they are in compliance. As the checking means, for example, by changing the horizontal direction of the heat-insulating inner wall body and communicating the exhaust gas outlet with the exhaust gas outlet of the top plate, the description indicating the type of each intake / exhaust system, Only the description indicating the type of the intake / exhaust system corresponding to the exhaust gas passage can be achieved as a configuration that can be viewed.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described.
FIG. 1 is a partially longitudinal front view of a combustor showing an embodiment of the present invention, FIG. 2 is a plan view of the combustor shown in FIG. 1, and FIG. 3 is a horizontal direction of a heat insulating inner wall constituting an exhaust gas collecting chamber. FIG. 3 is a plan view of the combustor showing a state changed from that shown in FIG. 2.
[0008]
The combustor 1 has a rectangular parallelepiped outer shape, the uppermost part is configured as an exhaust gas collecting chamber 10, the lower part of the exhaust gas collecting chamber 10 is defined as a muffler chamber 20, and the lower part of the muffler chamber 20 is defined as a combustion chamber 30. .
In the combustion chamber 30, fuel such as petroleum fuel or gaseous fuel is burned, and the combustion produces exhaust gas. A water heater such as a hot water heater can be provided by disposing a heat exchanger such as a hot water storage tank or a water flow coil for instantaneous heat exchange in the upper space of the combustion chamber 30.
The silencing chamber 20 is provided standing upright so as to penetrate a central portion of the silencing chamber 20, a partition plate 21 made of punched metal for dividing the lower combustion chamber 30 from the combustion chamber 30, a silencing chamber barrel 22 forming a side peripheral wall. And a silencer 24 filled between the middle cylinder 23 and the silencer body cylinder 22. A plurality of the sound deadening materials 24 are sequentially mounted from above in the sound deadening room body tube 22 and stacked to be filled. Of course, it is not necessary to provide a plurality of the sound deadening materials 24. The method of filling is not particularly limited.
Exhaust gas guided from the combustion chamber 30 through the partition plate 21 to the silencing chamber 20 is silenced while passing through a gap or the like of the silencing material 24, and is guided to the exhaust gas collecting chamber 10 through the middle cylinder 23.
[0009]
The exhaust gas collecting chamber 10 forms a partition with the silencing chamber 20 and has a bottom plate 11 provided with an exhaust gas inlet 11a from the silencing chamber 20, and an exhaust gas collecting chamber barrel 12 forming a side peripheral wall of the exhaust gas collecting chamber 10. A top plate 13 which is attached to the exhaust gas collecting chamber body tube 12 to form a top wall of the exhaust gas collecting chamber 10 and opens an exhaust gas outlet 13a to the exhaust pipe 40, Before being attached, the heat insulating inner wall is fitted into the exhaust gas collecting chamber barrel 12 to form a heat insulating inner wall along the side peripheral wall (the exhaust gas collecting chamber barrel 12) and the top wall (the top plate 13) of the exhaust gas collecting chamber 10. And a body 14.
In the exhaust gas inlet 11a of the bottom plate 11, the middle cylinder 23 of the silencing chamber 20 slightly projects from the bottom plate 11 into the exhaust gas collecting chamber 10, so that the upper end opening of the middle cylinder 23 serves as the exhaust gas inlet 11a.
The exhaust gas collecting chamber barrel 12 is formed by sheet metal working integrally with the silencing chamber barrel 22 of the silencing chamber 20. However, of course, they may be formed separately.
The top plate 13 is slightly bent with its peripheral edge hanging down, and is attached to and attached to the upper end opening of the exhaust gas collecting chamber barrel 12. The exhaust gas outlet 13a of the top plate 13 is opened at a position horizontally separated from the exhaust gas inlet 11a, thereby preventing the exhaust gas from flowing directly from the exhaust gas inlet 11a to the exhaust gas outlet 13a.
The exhaust pipe 40 is attached to the upper surface side of the top plate 13 with screws 41 or the like, and is provided so as to coincide with the exhaust gas outlet 13 a of the top plate 13. An extended exhaust pipe such as an exhaust top is attached to the exhaust pipe 40 as necessary.
[0010]
The heat-insulating inner wall body 14 includes a top wall-side heat-insulating inner wall portion 14a along the top wall (top plate 13) of the exhaust gas collecting chamber and a side peripheral wall along the side peripheral wall of the exhaust gas collecting chamber (the exhaust gas collecting chamber barrel 12). The side heat-insulating inner wall portion 14b. The heat-insulating inner wall body 14 is attached by fitting the bottom plate 11 into the exhaust gas collecting chamber barrel 12 after the bottom plate 11 is attached to the exhaust gas collecting chamber barrel 12. The top plate 13 is attached after the heat-insulating inner wall 14 is attached. Two types of exhaust gas passages 51 and 52 having different diameters are opened in the heat-insulating inner wall portion 14a of the heat-insulating inner wall 14 on the top wall side. The large-diameter exhaust gas passage 51 is formed as a forced intake / exhaust type exhaust gas port 51 corresponding to a forced intake / exhaust type, and the small-diameter exhaust gas port 52 is used for a forced exhaust type corresponding to a forced exhaust type. An exhaust gas passage 52 is formed. The two exhaust gas passages 51 and 52 are turned 180 degrees in the horizontal direction when the heat-insulating inner wall body 14 is fitted into the exhaust gas collecting body barrel 12, so that both of the exhaust gas passages 51 and 52 are top plates. 13 is open at a position where it can communicate with the exhaust gas outlet 13a.
The diameter of the exhaust gas passage 51 for the forced intake / exhaust type and the exhaust gas outlet 13a of the top plate 13 and the diameter of the exhaust tube 40 are substantially the same, and the exhaust gas passage 51 for the forced intake / exhaust type is connected to the exhaust gas outlet 13a of the top plate 13. When they are in communication, their mouths almost coincide. On the other hand, since the diameter of the forced exhaust gas exhaust port 52 is smaller than that of the exhaust gas outlet 13a of the top plate 13 and the diameter of the exhaust pipe 40, the forced exhaust gas exhaust port 52 is connected to the exhaust gas outlet 13a of the top plate 13. When the communication is established, the forced exhaust gas exhaust port 52 communicates with a part of the exhaust gas outlet 13a of the top plate 13, but as shown in FIG. The exhaust gas outlet 52 for forced exhaust is positioned on the heat-insulating inner wall 14 such that the exhaust gas outlet 13a of the top plate 13 communicates with the exhaust gas inlet 11a of the bottom plate 11 at the farthest position in the horizontal direction. It has established. The noise reduction effect can be improved by making the exhaust gas outlet 52 for forced exhaust type farther from the exhaust gas outlet 13a of the top plate 13.
In the above description, the planar shape of the exhaust gas collecting chamber 10 is rectangular, and two types of exhaust gas passages 51 and 52 are provided. Four types of exhaust gas passages corresponding to the exhaust type can be opened. In addition, by making the planar shape of the exhaust gas collecting chamber 10 circular, a plurality of types of exhaust gas openings corresponding to a plurality of types of intake and exhaust types can be opened.
[0011]
In the above description, when the exhaust gas passage 51 for the forced intake / exhaust type among the exhaust gas openings 51 and 52 of the heat insulating inner wall body 14 is communicated with the exhaust gas outlet 13 a of the top plate 13, the exhaust gas passage for the forced intake / exhaust type is provided. In order to make it possible to confirm the type of the intake / exhaust system corresponding to the port 51, a symbol FF indicating a forced intake / exhaust type is provided as a confirmation means from the exhaust gas outlet 13a of the top plate 13 through the forced intake / exhaust type exhaust gas passage. A region A on the bottom plate 11 which can be seen downward through the portion 51 is previously attached by engraving or the like. The area A can be viewed downward from the exhaust gas outlet 13a through the exhaust gas outlet 52 for the forced exhaust gas when another forced exhaust gas exhaust port 52 is communicated with the exhaust gas outlet 13a of the top plate 13. It is an area that cannot be done. That is, the symbol FF can be seen in the area A as the confirmation means only when the forced intake / exhaust type exhaust gas passage 51 is communicated with the exhaust gas outlet 13a of the top plate 13.
On the other hand, when the forced exhaust type exhaust gas passage 52 is communicated with the top plate exhaust gas outlet 13a, the type of the intake / exhaust system corresponding to the forced exhaust type exhaust gas outlet 52 can be confirmed. Therefore, as a confirmation means, a symbol F indicating a forced exhaust type is attached in advance to a region B near the exhaust port 52 for the forced exhaust type on the upper surface of the heat insulating inner wall 14. The region B is a region which can be seen from the exhaust gas outlet 13a when the exhaust gas outlet 52 for the forced exhaust type is communicated with the exhaust gas outlet 13a of the top plate 13. It is an area that cannot be seen when it is communicated with the exhaust gas outlet 13a.
By providing the symbols FF and F as confirmation means as described above, when any one of the exhaust gas ports 51 and 52 is communicated with the exhaust gas outlet 13a of the top plate 13, the desired suction to be assembled is desired. It can be easily checked whether the exhaust system is of the type.
Of course, when exhaust gas ports 51 and 52 corresponding to only the forced intake / exhaust type and the forced exhaust type are provided as the type of the intake / exhaust system, the exhaust gas port 51 for the forced intake / exhaust type is provided at the exhaust gas outlet 13 a of the top plate 13. Only when the communication is established, the corresponding symbol FF may be made visible. In this case, the symbol F and the like corresponding to the exhaust gas passage 52 for forced intake and exhaust are not provided.
Note that the confirmation means is not limited to the symbol FF, the symbol F, and how to attach them. Characters other than symbols and other displays can be used, and various methods can be used for the display. That is, when the exhaust gas outlet 13a of the top plate 13 is communicated with one of the exhaust gas passages of the heat insulating inner wall 14, the confirmation means confirms the type of the intake / exhaust system corresponding to the communicated exhaust gas passage. The confirmation means is not limited, as long as it can be performed. However, the method of appropriately attaching the symbols FF, F, and the like can be easily configured as confirmation means.
[0012]
【The invention's effect】
The present invention has the above configuration, and according to the exhaust device for a combustor according to claim 1, when fitting the heat-insulating inner wall body having a plurality of types of exhaust gas openings having different diameters into the barrel, Only by changing the horizontal direction, it is possible to obtain an exhaust structure corresponding to a plurality of different types of intake and exhaust systems. Therefore, the members used for a plurality of different intake / exhaust systems can be shared, and the number of parts can be reduced, and the cost required for mold production and the like can be reduced.
In addition, when inserting a plurality of types of heat-insulating inner walls having open exhaust gas openings, it is possible to obtain an exhaust structure for different types of intake and exhaust systems by merely changing the horizontal direction and inserting the same. It is very easy and easy to assemble different types of exhaust structures using the.
According to the exhaust device for a combustor according to the second aspect, in addition to the effect of the configuration according to the first aspect, the exhaust gas outlet of the top plate and any one of the exhaust gas openings of the heat insulating inner wall body are communicated. At this time, a check means is provided to check the type of the intake and exhaust system corresponding to the exhaust gas passage that is connected, so that the currently assembled exhaust structure is the same as the type of the intake and exhaust system that was scheduled to be assembled from the beginning. Whether they match or not can be easily confirmed.
[Brief description of the drawings]
FIG. 1 is a partially longitudinal front view of a combustor showing an embodiment of the present invention.
FIG. 2 is a plan view of the combustor shown in FIG.
3 is a plan view of the combustor showing a state in which the horizontal direction of the heat insulating inner wall constituting the exhaust gas collecting chamber is changed from the case shown in FIG.
[Explanation of symbols]
DESCRIPTION OF REFERENCE NUMERALS 1 Combustor 10 Exhaust gas collecting chamber 11 Bottom plate 11a Exhaust gas inlet 12 Exhaust gas collecting chamber barrel 13 Top plate 13a Exhaust gas outlet 14 Insulating inner wall 14a Top wall side insulating inner wall 14b Side peripheral wall insulating inner wall 20 Noise reduction chamber 30 Combustion chamber 40 Exhaust pipe 51 Exhaust gas port for forced intake / exhaust type 52 Exhaust gas port for forced exhaust type

Claims (2)

An exhaust device for a combustor in which exhaust gas that has been burned in a combustion chamber is guided to a silencing chamber, and further guided to an exhaust gas collecting chamber disposed above the silencing chamber, and then discharged from the exhaust gas collecting chamber to an exhaust stack. The exhaust gas collecting chamber is formed with a bottom plate provided with a partition from the silencing chamber and provided with an exhaust gas inlet from the silencing chamber, a barrel forming a side peripheral wall of the exhaust gas collecting chamber, and a cylinder attached to the barrel. A top plate which forms a top wall of the exhaust gas collecting chamber by being performed and which opens an exhaust gas outlet to the exhaust pipe, and is fitted into the barrel before the top plate is attached, and And a plurality of types of exhaust gas passages having different diameters are formed in the heat-insulating inner wall portion of the heat-insulating inner wall portion. And the horizontal orientation when fitting the heat-insulating inner wall into the barrel The plurality of types of combustor exhaust system, characterized in that one is configured to exhaust gas outlet communicating with the top plate of the waste gas port by changing. When the exhaust gas outlet of the top plate and one of the exhaust gas openings of the heat insulating inner wall are communicated with each other, a confirmation means for confirming a type of the intake / exhaust system corresponding to the communicated exhaust gas opening is provided. The exhaust device for a combustor according to claim 1, wherein:

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