JP3822695B2 - Water heater exhaust system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an exhaust device for a water heater installed in a supply / exhaust chamber facing a corridor side, such as in a shared hall type apartment house open to the outside air.
[0002]
[Prior art]
Conventionally, an exhaust device for a bath water heater used in an apartment house having a shared corridor is provided on the side of an outdoor corridor C with an indoor bathroom A and a wall W separated as illustrated in FIG. The so-called supply / exhaust chamber B is often installed (for chamber installation). This is because if the water heater 10 and the exhaust pipe 12 connected to the water heater 10 and the exhaust pipe 12 connected thereto are directly put out into the corridor without providing the supply / exhaust chamber B, the passage is obstructed and the hot and harmful exhaust gas from the combustion directly touches the person. Therefore, it has been put into practical use to prevent this. Therefore, the supply / exhaust chamber B is provided by denting the wall W of the common corridor C and installing the shielding plate D leaving the upper opening E. And the water heater 10 and the exhaust pipe 12 are installed in the supply / exhaust chamber B, and exhaust gas is exhausted by introducing the exhaust gas from the exhaust port 11 to the upper opening E.
[0003]
[Problems to be solved by the invention]
At this time, the exhaust gas collecting unit 4 that is connected to the exhaust pipe 12 and guides the exhaust gas from the exhaust port 11 to the exhaust pipe 12 is attached to the water heater 10. As an example of the exhaust gas collection unit 4, one disclosed in Japanese Utility Model Laid-Open No. 61-74742 can be cited. The exhaust gas collection unit 4 disclosed in the publication will be briefly described with reference to FIG. 10. The exhaust gas collection unit 4 is attached so as to cover the exhaust port 11 and the upper surface part of the water heater 10. Then, the plate-like part 5 having the exhaust pipe connection port 47 for connecting to the exhaust pipe 12 is attached to the upper surface of the exhaust collection part 4 with a screw. The plate-like part 5 has a plurality of long holes 51 as shown in the figure, and the position attached to the exhaust gas collecting part 4 can be adjusted according to the position of the exhaust pipe 12. In such a configuration, since the exhaust gas collection unit 4 is attached so as to cover the water heater 10, the exhaust gas exhausted from the exhaust port 11 is transferred to the upper surface of the water heater 10 in the exhaust gas collection unit 4. It flows to the exhaust pipe 12 while directly touching the part. For this reason, the upper surface of the water heater 10 is heated to high heat by the heat of the exhaust gas, and it is necessary to increase the high temperature durability of the internal equipment in the water heater 10. In addition, when a bath water heater is installed in a place facing the outdoor directly across the bathroom A and the wall W (for outdoor use), such a countermeasure against high temperature is not necessary.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide an exhaust device that guides exhaust gas to an exhaust cylinder and discharges the water to the outside without exposing the water heater body to the heat of the exhaust gas.
[0005]
Furthermore, an object of the present invention is to provide an exhaust device that is easier to install in such an exhaust device.
[0006]
The object of the present invention is to provide an exhaust cylinder for exhausting exhaust gas from an exhaust port of a water heater to the outside,
A tubular exhaust collector that extends from the exhaust port of the water heater toward the upper surface of the water heater and is connected to the exhaust tube, and guides exhaust gas from the exhaust port to the exhaust tube;
Provided is an exhaust device comprising a spacer that supports the exhaust collection unit with respect to the upper surface of the water heater by providing a gap between the exhaust collection unit and the upper surface of the water heater. Is achieved.
[0007]
Thus, by providing a space between the water heater and the exhaust collecting part, the heat of the exhaust gas in the exhaust collecting part is hardly transmitted to the upper surface of the water heater.
[0008]
Moreover, the exhaust apparatus of the said invention WHEREIN : The said exhaust gas collection part may be fixed to the said water heater by attaching the attachment band surrounding the said water heater to the said spacer . Thereby, it is not necessary to provide a screw hole on the upper surface of the water heater.
[0009]
Further, in the exhaust device of the present invention, the exhaust collecting part includes two parts, one of which has a protrusion and the other has an elongated concave part, and one of the two parts is connected to the exhaust port, The other is connected to the exhaust tube, and the projection and the recess are fitted together, and the length of the exhaust collecting part can be adjusted by sliding one of these along the other. May be .
[0010]
As a result, the exhaust collector is configured so that its length can be adjusted without using screws as in the prior art, so that the alignment of the exhaust tube and the exhaust tube connection port of the exhaust collector connected to the exhaust tube can be adjusted. It becomes easy.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the technical scope of the present invention is not limited to this embodiment. The same or similar parts as those in FIGS. 9 and 10 are described with the same reference numerals or reference symbols.
[0012]
FIG. 1 is a cross-sectional view showing an embodiment of the exhaust device of the present invention. According to FIG. 1, the water heater 10 in the supply / exhaust chamber B is attached to the bathtub 13 in the bathroom A through the wall W. And the exhaust gas collection part 4 in the exhaust apparatus of this invention described below is attached to the water heater 10, The exhaust pipe 12 connected with this exhaust gas collection part 4 is extended to the upper opening E, and is exhaust gas from there Are discharged to the outside.
[0013]
FIG. 2 is a perspective view of the water heater 10 and the exhaust collector 4 attached thereto. According to FIG. 2, the exhaust collection unit 4 includes an exhaust box 41 and an exhaust connection box 42, and the exhaust connection box 42 includes a first box 42 a and a second box 42 b.
[0014]
FIG. 3 is a diagram illustrating attachment of the exhaust box 4 to the water heater 10. As shown in the figure, the exhaust box 41 has two openings, and one of the openings is attached with a screw so as to cover the exhaust port 11 at the upper front of the water heater 10 shown in FIG. Furthermore, the opening provided in the first box 42a of the exhaust connection box 42 is aligned with the other opening of the exhaust box 41 as shown in FIG. Install in. Specifically, the opening of the exhaust connection box 42 is fixed to the opening of the exhaust box 41 by screwing on the first box 42a side, and the second box 42b side is described later. It is supported on the upper surface of the water heater 10 by a spacer 46 provided on the attachment band fixing part 45 to be attached.
[0015]
Further, as shown in FIG. 5, an exhaust pipe connection port 47 for connecting the exhaust pipe 12 is provided on the upper surface of the second box 42 b of the exhaust connection box 42. The exhaust cylinder 12 and the exhaust connection box 42 are connected as shown in FIG. 2 and further fixed with screws. In this way, the exhaust gas from the exhaust port 11 of the water heater 10 flows through the exhaust box 41, the first box 41a and the second box 42b of the exhaust connection box 42 in the exhaust collector 4, and Then, it is discharged to the outside through the exhaust tube 12 from the exhaust tube connection port 47.
[0016]
Further, as shown in FIG. 6, the exhaust connection box 42 is provided with a flange-like attachment band fixing portion 45 for supporting it on the upper surface portion of the water heater 10. Further, the attachment band fixing portion 45 is provided with a spacer 46 as shown in the figure, and the exhaust connection box 42 and the upper surface portion of the water heater 10 are supported by the spacer portion 46. As a result, the disadvantage of the conventional exhaust device in which the upper surface portion of the water heater 10 is heated by the heat of the exhaust gas passing through the exhaust collection unit 4 is solved. This will be described in more detail with reference to FIG. FIG. 7A is a schematic cross-sectional view of the exhaust gas collection unit 4 attached to the conventional water heater 10, and FIG. 7B is an exhaust gas collection attached to the water heater 10 according to the present invention. 4 is a schematic cross-sectional view of a part 4. FIG. According to FIG. 7 (a), the conventional exhaust collecting unit 4 is attached so as to cover the water heater 10, so that when the exhaust gas discharged from the exhaust port 11 flows through the exhaust collecting unit 4, The upper surface of the vessel 10 (shaded area in FIG. 7A) is exposed to high temperature because it directly contacts the exhaust gas. On the other hand, according to FIG. 7 (b), the exhaust gas collection unit 4 of the present invention is installed at a distance d from the upper surface of the water heater 10, and the exhaust gas flowing through the interior does not contact the water heater 10. Therefore, the heat of the exhaust gas is hardly transmitted to the upper surface of the water heater 10. Therefore, it is possible to avoid a failure that may occur due to the high temperature of the internal equipment of the water heater 10.
[0017]
Returning to FIG. 6, the attachment band 48 surrounds the water heater 10 as shown in the figure, and is screwed to the attachment band fixing portion 45. Thereby, the exhaust gas collection part 4 can be fixed to the water heater 10 without screwing the exhaust gas collection part 4 directly on the upper surface of the water heater 10 as in the prior art. Therefore, it is not necessary to provide a screw hole on the upper surface of the water heater 10.
[0018]
By the way, the exhaust connection box 42 is extendable in the direction of the arrow in the drawing in order to make it possible to adjust the position of the exhaust pipe connection port 47 in accordance with the position of the exhaust pipe 12 in FIG. This will be described in detail with reference to FIG. FIG. 8A shows a case where the first box 42a and the second box 42b are installed in an extended state, and FIG. 8B shows a case where they are installed in a contracted state. ing. Further, FIG. 8C is a cross-sectional view taken along the Y line in FIG. Specifically, the first box 42a and the second box 42b of the exhaust connection box 42 are assembled in a nested manner. Further, a projection 43 is provided on one of the side surfaces, and an elongated recess projection 44 that is slidable by being fitted to the projection 43 is provided on the other side. According to FIG. 8, a protrusion 43 is provided on the first box 42a, and an elongated recess 44 is provided on the second box 42b. Then, the second box 42 b is slid according to the position of the exhaust tube 12, and the exhaust tube connection port 47 is positioned at a position where it matches the exhaust tube 12. Thus, by adjusting the length of the exhaust connection box 42, the exhaust pipe connection port 47 and the exhaust pipe 12 can be easily aligned, and they can be connected quickly.
[0019]
【The invention's effect】
As described above, according to the present invention, the exhaust collection part for guiding the exhaust gas discharged from the exhaust port of the water heater to the exhaust pipe is installed on the upper surface of the water heater at a predetermined interval. As a result, the heat of the exhaust gas flowing in the exhaust gas collection unit is hardly transmitted to the upper surface of the water heater. Therefore, there is no need to take separate measures for the type that can directly discharge the water from the water heater (outdoor) and the type that attaches an exhaust device (for chamber installation), and the exhaust device is mistakenly attached for outdoor use. The internal equipment of the boiler is heated to a high temperature, thereby reducing the cause of failure that may occur and a decrease in durability.
[0020]
Further, since the length of the exhaust collecting part can be adjusted, it is easy to align the exhaust pipe and the exhaust pipe connection port of the exhaust collecting part connected thereto. Therefore, it becomes easier to attach the exhaust device.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of an exhaust device of the present invention.
FIG. 2 is a perspective view of an exhaust collection unit attached to a water heater.
FIG. 3 is a view showing attachment of an exhaust box to a water heater.
FIG. 4 is a view for explaining an exhaust port of a water heater.
FIG. 5 is a diagram showing attachment of an exhaust connection box.
FIG. 6 is a view for explaining an attachment band fixing portion.
FIG. 7 is a diagram schematically showing a cross section of an exhaust collecting unit and a water heater.
FIG. 8 is a view for explaining expansion and contraction of the exhaust connection box.
FIG. 9 is a cross-sectional view for explaining a conventional exhaust device.
FIG. 10 is a cross-sectional view for explaining an exhaust collection part of a conventional exhaust device.
[Explanation of symbols]
4 Exhaust collector 10 Water heater 11 Exhaust port 12 Exhaust tube 41 Exhaust box 42 Exhaust connection box 43 Projection portion 44 Recess 45 Mounting band fixing portion 46 Spacer 47 Exhaust tube connection port 48 Attachment band

Claims (3)

An exhaust pipe for exhausting exhaust gas from the exhaust port of the water heater to the outside;
A tubular exhaust collector that extends from the exhaust port of the water heater toward the upper surface of the water heater and is connected to the exhaust tube, and guides exhaust gas from the exhaust port to the exhaust tube;
An exhaust apparatus comprising: a spacer that supports the exhaust collection unit with respect to the upper surface of the water heater by providing a gap between the exhaust collection unit and the upper surface of the water heater . In claim 1,
The exhaust apparatus according to claim 1, wherein the exhaust collector is fixed to the water heater by attaching an attachment band surrounding the water heater to the spacer . In claim 1,
The exhaust collecting part includes two parts, one of which has a protrusion and the other has an elongated recess, and one of the two parts is connected to the exhaust port, the other is connected to the exhaust pipe, The exhaust device is characterized in that the length of the exhaust collecting portion can be adjusted by fitting the projection and the recess and sliding one of them along the other.

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