JPH09229343A - Gas-exhaust device of combustion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a gas exhaust device of a combustion device, that allows a reduction in the count of parts and in costs of making molds, etc., and has an excellent assembly properties, by a method wherein parts are used in common for the gas exhaust devices of the combustion devices having the same combustion parts even when the types of the gas exhaust device are different to each other. SOLUTION: A gas exhaust device of a combustion device is to discharge exhaust gas from a combustion chamber 30 to an exhaust stack 40 through a sound attenuator 20 and an exhaust gas gathering chamber 10. The exhaust gas gathering chamber 10 includes a bottom plate 11 with an exhaust gas inlet 11a, a body shell 12 that forms a peripheral sidewall, a top plate 13 with an exhaust gas outlet 13a leading to the exhaust stack 40 and a heat-insulating inner wall 14 that forms a heat-insulating inner wall of the exhaust gas gathering chamber 10. Two or more sorts of exhaust gas passages 51 and 52 having different diameters are provided in a heat-insulating top inner wall 14a of the heat-insulating inner wall 14. When the heat-insulating inner wall 14 is inserted in the body shell 12, the orientation of the heat-insulating inner wall 14 is adjusted horizontally so that one of the exhaust gas passages 51 and 52 communicates with the exhaust gas outlet 13a of the top plate 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust device for a combustor which can be used for a hot water supply device or the like.

[0002]

2. Description of the Related Art In a combustor used for a petroleum hot water supply apparatus, a forced intake / exhaust type combustor, a forced exhaust are provided depending on the type of intake / exhaust system such as intake of combustion air and exhaust of exhaust gas. Type combustor, natural exhaust type combustor, etc. In that case, conventionally, even if the same combustor has different types of intake and exhaust types, a dedicated exhaust device is attached to each of the different intake and exhaust types.

[0003]

However, in the case of attaching different exclusive exhaust devices to the same combustor for different intake / exhaust types like the above-described conventional device, a model with a small number of units to be produced, for example, forced In the case of intake / exhaust type (FF type) combustor and 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 / exhaust type, There is a problem that the manufacturing cost becomes high.

Therefore, the present invention solves the above-mentioned problems of the conventional device, and allows the combustor having the same combustor portion to share the members used in the exhaust device even if the types of the intake and exhaust systems are different. Therefore, it is an object to provide an exhaust device for a combustor which can reduce the number of parts and cost required for manufacturing a mold, and can be easily assembled.

[0005]

In order to solve the above-mentioned problems, an exhaust device for a combustor according to the present invention introduces exhaust gas burned in a combustion chamber to a muffling chamber and further collects the exhaust gas on the muffling chamber. After being guided to the chamber, the exhaust device in the combustor configured to discharge the exhaust gas from the exhaust gas collecting chamber to the exhaust stack, the exhaust gas collecting chamber forms a partition with the muffling chamber and forms an exhaust gas inlet from the muffling chamber. A bottom plate provided, a barrel forming a side peripheral wall of the exhaust gas collection chamber, and a ceiling wall of the exhaust gas collection chamber formed by being attached to the barrel, and an exhaust gas outlet to the exhaust pipe is opened. A top plate and a heat insulating inner wall body that is fitted into the barrel before the top plate is attached and that forms a heat insulating inner wall along the side peripheral wall and the top wall of the exhaust gas collection chamber, The heat insulation inner wall body has a different diameter for the heat insulation inner wall body part. By opening a plurality of types of exhaust gas passages and changing the horizontal direction when fitting the heat insulating inner wall body into the barrel, any of the plurality of types of exhaust gas passages communicates with the exhaust gas outlet of the top plate. The first feature is that it is configured as described above. In addition to the first feature, the exhaust device for a combustor according to the present invention has, in addition to the above-mentioned first feature, an exhaust gas passage that is communicated when the exhaust gas outlet of the top plate is communicated with any exhaust gas passage of the heat insulating inner wall body. The second feature is that a confirmation means for confirming the type of the intake / exhaust system corresponding to the mouth is provided.

In the first feature of the present invention described above, the exhaust gas generated in the combustion chamber is guided to the muffler chamber to be muffled, and the exhaust gas passes through the exhaust gas inlet provided on the bottom plate of the exhaust gas collecting chamber from the muffler chamber. Be led to. Then, the exhaust gas collected in the exhaust gas collecting chamber is discharged to the exhaust stack through any exhaust gas passage of the heat insulating inner wall body and the exhaust gas outlet of the top plate communicating therewith. When assembling the exhaust gas collection chamber, simply by changing the horizontal direction of the heat insulating inner wall body that is fitted into the barrel, the exhaust gas passage having a diameter corresponding to the desired intake and exhaust type is selected and the ceiling plate is installed. Can be connected to the exhaust gas outlet. The diameters of the exhaust gas outlet and the exhaust pipe that are opened in the top plate are made larger than the diameters of the plurality of exhaust gas passages that are opened in the heat insulating inner wall body portion of the heat insulating inner wall body. The exhaust condition can be rate-controlled according to the diameter. The exhaust gas passage opening to the heat insulating inner wall body,
Two types can be provided according to the variation of forced intake / exhaust type (FF type) and forced exhaust type (F type), but an exhaust gas passage with a different diameter is added according to other types of intake / exhaust. May be provided. Further, according to the second feature, the heat insulating inner wall body is fitted into the barrel, and the top plate is further attached to the barrel, so that the exhaust gas collecting chamber is assembled and then connected to the exhaust gas communicating port. By the confirmation means that confirms the type of the corresponding intake / exhaust system, the exhaust gas passage of the heat insulation inner wall body that is actually assembled in communication with the exhaust gas outlet of the top plate is the same as the type of the intake / exhaust system originally planned to be assembled. You can easily check whether or not you are doing. As the confirmation means, for example, by changing the horizontal direction of the heat insulating inner wall body to communicate the exhaust gas passage with the exhaust gas outlet of the top plate,
Of the descriptions of the types of the intake and exhaust systems, only the descriptions of the types of the intake and exhaust systems corresponding to the communicated exhaust gas passages can be achieved as a visible structure.

[0007]

Embodiments of the present invention will be described below. 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 body forming an exhaust gas collecting chamber. FIG. 3 is a plan view of the combustor showing a changed state from the case shown in FIG.

The outer shape of the combustor 1 is a rectangular parallelepiped,
The uppermost part thereof is configured as an exhaust gas collecting chamber 10, the lower part of the exhaust gas collecting chamber 10 is a muffling chamber 20, and the lower part of the muffling chamber 20 is a combustion chamber 30.
It has been. In the combustion chamber 30, fuel such as petroleum fuel or gas fuel is burned, and exhaust gas is generated by the combustion. In the upper space of the combustion chamber 30, a hot water tank such as a hot water tank or a water exchange coil for instantaneous heat exchange, which is not shown, may be arranged to be a water heater such as a water heater. The silencing chamber 20 is the combustion chamber 30 below.
A partition plate 21 made of punching metal for partitioning and, a silencing chamber barrel 22 forming a side peripheral wall, and a middle cylinder made of punching metal vertically arranged so as to penetrate through the center of the silencing chamber 20.
23, and a silencing material 24 filled between the middle cylinder 23 and the silencing chamber barrel 22. A plurality of the silencing materials 24 are silencing chamber barrels.
It is loaded in the inside of 22 in order from above and stacked. Of course, it is not necessary to use a plurality of muffling materials 24. Further, the filling method is not particularly limited. Exhaust gas guided from the combustion chamber 30 to the muffling chamber 20 via the partition plate 21 is silenced while passing through the gaps of the muffling material 24, and passes through the middle cylinder 23 to form the exhaust gas collecting chamber 10
It is led to.

The exhaust gas collecting chamber 10 forms a partition with the silencing chamber 20 and the exhaust gas inlet 11a from the silencing chamber 20 is formed.
A bottom plate 11 provided with the exhaust gas, an exhaust gas collecting chamber barrel 12 forming a side peripheral wall of the exhaust gas collecting chamber 10, and a ceiling wall of the exhaust gas collecting chamber 10 formed by being attached to the exhaust gas collecting chamber barrel 12. And the top plate 13 having the exhaust gas outlet 13a to the exhaust pipe 40 opened, and the top plate 13 fitted into the exhaust gas collecting chamber body cylinder 12 before the top plate 13 is attached, and the side peripheral wall of the exhaust gas collecting chamber 10 (the exhaust gas Meeting room barrel
12) and a heat insulating inner wall body 14 forming a heat insulating inner wall along the ceiling wall (top plate 13). In the exhaust gas inlet 11a of the bottom plate 11, the middle cylinder 23 of the muffler chamber 20 slightly projects from the bottom plate 11 into the exhaust gas collecting chamber 10, and 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 as an integrated body 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 portion hanging down so as to be attached and attached to the upper end opening of the exhaust gas collecting chamber barrel 12. Also top plate 13
The exhaust gas outlet 13a of the exhaust gas is opened at a position horizontally separated from the exhaust gas inlet 11a, so that the exhaust gas is exhausted from the exhaust gas inlet 11a.
From flowing directly to the exhaust gas outlet 13a. The exhaust pipe 40 is attached to the upper surface side of the top plate 13 with a screw 41 or the like, and is provided so as to match the exhaust gas outlet 13a of the top plate 13. An extension exhaust pipe such as an exhaust top is attached to the exhaust stack 40 as needed.

The heat-insulating inner wall body 14 extends along the ceiling wall-side heat-insulating inner wall portion 14a along the top wall (top plate 13) of the exhaust gas collecting chamber and the side peripheral wall of the exhaust gas collecting chamber (exhaust gas collecting chamber barrel 12). And the side peripheral wall side heat insulating inner wall body portion 14b. This heat-insulating inner wall body 14 is provided after the bottom plate 11 is mounted in the exhaust gas collecting chamber barrel 12,
It is attached by being fitted into the exhaust gas collecting chamber barrel 12. The top plate 13 is attached after the heat insulating inner wall body 14 is attached. In the heat insulating inner wall body portion 14a of the heat insulating inner wall body 14, two kinds of exhaust gas passages 51 and 52 having different diameters are opened. The larger exhaust gas passage 51 is formed as an exhaust gas outlet 51 for the forced intake / exhaust type corresponding to the forced intake / exhaust type, and the smaller exhaust gas passage 52 is for the forced exhaust type corresponding to the forced exhaust type It is formed as an exhaust gas passage 52. When the heat insulating inner wall body 14 is fitted into the exhaust gas collecting chamber barrel 12, the two exhaust gas passages 51 and 52 are changed in the horizontal direction by 180 degrees so that both of the exhaust gas passages 51 and 52 are top plates. It is opened 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 top plate 13
The exhaust gas outlet 13a and the exhaust pipe 40 have substantially the same diameter, and when the forced intake / exhaust type exhaust gas passage 51 is communicated with the exhaust gas outlet 13a of the top plate 13, the both ports are substantially the same. To do. On the other hand, the forced exhaust type exhaust gas passage 52 has a diameter of the top plate 13
Because it is smaller than the diameter of the exhaust gas outlet 13a and the exhaust pipe 40 of
When the exhaust gas outlet 52 for forced exhaust type is connected to the exhaust gas outlet 13a of the top plate 13, the exhaust gas outlet 52 for forced exhaust type is connected to the top plate.
The exhaust gas outlet 13a of the bottom plate 11 is connected to the exhaust gas outlet 13a of the top plate 13 as shown in FIG.
To communicate with the farthest position in the horizontal direction from
The position of the exhaust gas passage 52 for forced exhaust on the heat insulating inner wall body 14 is determined. Since the forced exhaust type exhaust gas passage 52 is far from the exhaust gas outlet 13a of the top plate 13, the sound deadening effect can be improved. In the above, the exhaust gas collection chamber 10
The shape of the exhaust gas is rectangular and the exhaust gas passages 51 and 52 are provided in two types. The mouth can be opened. Also exhaust gas collection room 10
By making the plane shape into a circular shape, it is possible to open a plurality of types of exhaust gas passages corresponding to a plurality of types of intake and exhaust types.

In the above, the exhaust gas passage of the heat insulating inner wall body 14
Of the 51, 52, when the forced intake / exhaust type exhaust gas passage 51 is communicated with the exhaust gas outlet 13a of the top plate 13, the type of the intake / exhaust system corresponding to the forced intake / exhaust type exhaust gas passage 51 is selected. In order to enable confirmation, as a confirmation means, the symbol FF indicating the forced intake / exhaust type can be seen downward from the exhaust gas outlet 13a of the top plate 13 through the forced intake / exhaust type exhaust gas passage 51. The area A above 11 is marked in advance by marking or the like. In the area A, another forced exhaust type exhaust gas passage 52 is provided on the top plate.
When communicating with the exhaust gas outlet 13a of 13
It is a region that cannot be seen from a through the exhaust port 52 for forced exhaust type. That is, the symbol FF is made visible in the area A as a 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 connected to the exhaust gas outlet 13a of the top plate, it is possible to confirm the type of the intake / exhaust system corresponding to the forced exhaust type exhaust gas passage 52. Therefore, as a confirmation means, the symbol F indicating the forced exhaust type is attached in advance to the region B on the upper surface of the heat insulating inner wall body 14 near the exhaust port 52 for the forced exhaust type. Area B
The forced exhaust type exhaust gas inlet 52 to the exhaust gas outlet 13 of the top plate 13.
This is a region that can be seen from the exhaust gas outlet 13a when communicating with a, and cannot be seen when the forced intake / exhaust type exhaust gas passage 51 is communicated with the exhaust gas outlet 13a of the top plate 13. By providing the symbols FF and F as the confirmation means as described above, when any one of the exhaust gas passages 51 and 52 is communicated with the exhaust gas outlet 13a of the top plate 13, the desired exhaust gas to be assembled is desired. It is possible to easily check whether the exhaust system is used. Of course, the exhaust gas port 5 that supports only the forced intake / exhaust type and forced exhaust type as the type of intake / exhaust system
When installing 1, 52, exhaust gas outlet 51 for forced intake and exhaust type
The corresponding symbol FF may be made visible only when the fuel cell is communicated with the exhaust gas outlet 13a of the top plate 13. In this case, the symbol F or the like corresponding to the forced intake / exhaust exhaust gas passage 52 is not provided. The confirmation means is not limited to the symbol FF, the symbol F, and the method of attaching them. Characters other than symbols and other displays can be used, and various methods can be used for displaying. That is, the confirmation means, when the exhaust gas outlet 13a of the top plate 13 and any exhaust gas passage of the heat insulating inner wall body 14 is communicated, confirms the type of the intake and exhaust system corresponding to the communicated exhaust gas passage Any means can be used as long as it can be used, and the confirmation means is not limited. However, the symbols FF and F
The method of appropriately attaching the etc. can be easily configured as the confirmation means.

[0012]

According to the present invention, there is provided the above construction.
According to the exhaust device of the combustor described in (1), when fitting the heat insulating inner wall body having the plural kinds of exhaust gas passages having different diameters into the barrel, only by changing the horizontal direction, a plurality of different An exhaust structure corresponding to the type of intake / exhaust system can be obtained. 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 can be reduced. Further, when fitting the heat insulating inner wall body having a plurality of kinds of exhaust gas openings, it is possible to obtain an exhaust structure for different kinds of intake and exhaust systems simply by changing the horizontal direction and fitting. It is very easy and easy to assemble different kinds of exhaust structures using. According to the exhaust device of the combustor of claim 2, in addition to the effect of the configuration of claim 1, the exhaust gas outlet of the top plate and any exhaust gas passage of the heat insulating inner wall body are communicated with each other. At this time, since a confirmation means is provided to confirm the mold of the intake / exhaust system corresponding to the exhaust gas passages communicated with each other, the exhaust structure actually assembled is the same as the model of the intake / exhaust system originally planned to be assembled. It is possible to easily confirm whether or not they match.

[Brief description of 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.

FIG. 3 is a plan view of the combustor showing a state in which the horizontal direction of the heat insulating inner wall body forming the exhaust gas collecting chamber is changed from that shown in FIG.

[Explanation of symbols]

 1 Combustor 10 Exhaust Gas Collecting Chamber 11 Bottom Plate 11a Exhaust Gas Inlet 12 Exhaust Gas Collecting Chamber Body 13 Top Plate 13a Exhaust Gas Outlet 14 Insulating Inner Wall 14a Top Insulating Inner Wall 14b Side Insulating Inner Wall 20 Silencer 30 Combustion Chamber 40 Exhaust stack 51 Exhaust gas outlet for forced intake / exhaust type 52 Exhaust gas outlet for forced exhaust type

Claims (2)

[Claims] 1. A combustor in which exhaust gas that has been burned in a combustion chamber is guided to a muffler chamber, is further guided to an exhaust gas collecting chamber disposed above the muffler chamber, and is then discharged from the exhaust gas collecting chamber to an exhaust stack. An exhaust device, wherein the exhaust gas collecting chamber forms a partition with the sound deadening chamber and a bottom plate provided with an exhaust gas inlet from the sound deadening chamber, a barrel forming a side peripheral wall of the exhaust gas collecting chamber, and the barrel. And a top plate that forms the top wall of the exhaust gas collection chamber by being attached to the exhaust pipe and that opens the exhaust gas outlet to the exhaust pipe, and is fitted into the barrel before the top plate is attached. A heat insulating inner wall body that forms a heat insulating inner wall along the side peripheral wall and the ceiling wall of the exhaust gas collecting chamber, and the heat insulating inner wall body has a plurality of types having different diameters in the ceiling wall side heat insulating inner wall body portion. Water when opening the exhaust gas passage and fitting the heat insulating inner wall into the barrel An exhaust device for a combustor, wherein any of the plurality of types of exhaust gas passages is configured to communicate with the exhaust gas outlet of the top plate by changing the direction in the horizontal direction. 2. When the exhaust gas outlet of the top plate and any exhaust gas passage of the heat insulating inner wall are communicated with each other, confirmation means for confirming the type of the intake and exhaust system corresponding to the communicated exhaust gas passage is provided. The combustor exhaust system according to claim 1, wherein the exhaust system is provided.