JP4704098B2 - Exhaust port cover for through-wall type combustor - Google Patents

Description

  The present invention relates to an exhaust port cover for a through-wall type combustor in which an air supply / exhaust port is located outdoors and a connection portion of piping is located on an indoor wall surface side and is installed in a through hole in an outer wall.

The wall through-hole type combustor 6 shown in the perspective view of FIG. 6 is a device that makes a flame using gas or oil as fuel, and uses the thermal energy. As shown in FIG. It installs as shown in FIG. 8 in the state which installed and attached to the through-hole 5, and constructed the wall penetration installation type combustor 6. As shown in FIG.
As shown in FIG. 7, the air supply 27 required for the combustion of the through-wall type combustor 6 is supplied from the air inlet 8 provided at the lower part of the main body case 9 of the through-wall type combustor 6 and burned. After that, the exhaust gas 16 is exhausted from an exhaust port 7 in the upper part of the main body case 9 of the through-wall type combustor 6, and this exhaust 16 is horizontally or vertically upward from the exhaust port 7. , Erupted with a certain directivity.

As described above, since the exhaust 16 of the through-wall type combustor 6 is ejected horizontally or upward with directivity, as shown in FIG. It is necessary to prevent burns and ignition of flammable materials due to the exhaust 16 being hit. In an outdoor water heater, the exhaust port of the main body of the water heater is placed on the side plate surrounding both sides of the exhaust port and the opposite surface. An exhaust port cover provided with a guide plate having a horizontal portion and an inclined portion having an ascending slope is known to discharge combustion exhaust from the exhaust port of the water heater main body upward. (See Patent Document 1).
JP-A-10-213352

  However, the exhaust port cover of the outdoor-installed hot water heater described above is closed with a guide plate composed of a horizontal portion and an inclined portion, such as rainwater entering the exhaust port cover, etc. There is a problem that processing is difficult. In the meantime, just by providing a drain hole in the guide plate, a part of the exhaust exhausted from the exhaust port passes through the drain hole provided in the guide plate and goes into the inlet port located at the lower part of the water heater body. There was a concern that the air would be supplied and the combustion would be poor.

  The present invention provides an exhaust port cover for a through-wall type combustor capable of preventing the exhaust from flowing out from the exhaust port to the lower side of the exhaust port cover and discharging the rainwater or the like that has entered into the outdoors.

The present invention relates to the following.
(1) An air supply port and an exhaust port located above the air supply port are formed in the main body case, the air supply port and the exhaust port are located outdoors, and a connection portion of piping is on the indoor wall surface side. a discharge port cover to the guide position to be located outdoors of through-wall installation type burner installed in the through hole of the outer wall of the exhaust from the exhaust port upward, the mounting and attachment to the body case A mounting plate provided with a projecting portion projecting so as to be located below the exhaust port and above the air supply port toward the outside from the portion, and a lower surface side of the drain port A water receiving plate portion that covers the drainage port from the lower surface side so that a water draining gap is formed at both ends of the water receiving plate, and the water receiving plate portion that is inclined upward from the outer end portion of the water receiving plate portion and from the exhaust port. And an inclined plate portion that guides the exhaust of the exhaust gas upward. So as to face a mouth and spacing, outlet cover through-wall installation type burner comprising mounting the mounting portion of the mounting plate to the outlet downwards.
(Function)

Rainwater, etc. entering the exhaust cover covers water from the drain port provided at the projecting part that protrudes outward from the upper end of the mounting part attached to the main body case below the exhaust port of the through-wall type combustor. Rainwater that falls on the water receiving plate that covers the water discharging port from the lower surface so that a water drain gap is formed on the lower surface of the outlet, It drops from the opening at both ends through the gap and is discharged outdoors.
On the other hand, the water receiving plate portion that covers the drainage port provided in the projecting portion of the mounting plate from the lower surface side prevents the exhaust from being exhausted from the exhaust port to the lower side through the drainage port. Exhaust gas that passes through the drainage port and enters the drainage gap between the lower surface of the drainage port and the water receiving plate part is exhausted to the outside from the drainage gaps on both the left and right sides of the water receiving plate part. The
The inclined plate portion inclined upward from the outer end of the water receiving plate portion guides and discharges the horizontal exhaust exhausted from the exhaust port upward.

  According to the exhaust port cover of the through-wall type combustor of the present invention, the drainage port is provided in the projecting portion protruding outward from the upper end of the attachment portion to the main body case, and the lower surface of the drainage port. The water receiving plate part that covers the drain port from the lower surface side is provided so that a water drain gap is formed on the side, and rainwater that enters the exhaust port cover passes through the drain port of the projecting part and the water receiving plate The rainwater that has fallen on the water drops through the drain gaps formed on the water receiving plate and drops from the openings at both ends and is discharged to the outside, and covers the drain from the bottom side. The water receiving plate portion prevents a part of the exhaust gas exhausted from the exhaust port from entering the lower side of the exhaust port cover due to entering from the drain port.

  The guide plate provided with the water receiving plate portion and the inclined plate portion is attached to the mounting plate by inclining upward at the same angle as the inclined plate portion of the guide plate in advance on the tip side of the protruding portion of the mounting plate. It is preferable that the inclined portion of the guide plate is attached to the connecting portion by screwing or the like.

The inclined surface portion of the guide plate that guides the exhaust from the exhaust port upwards is opposed to the exhaust port of the through-wall type combustor so as not to cause an exhaust pressure loss of the exhaust discharged from the exhaust port. Install as a surface. As a horizontal space | interval with an exhaust port, it is 10-100 mm, Preferably it is 20-50 mm, More preferably, it is about 20-30 mm. This interval not only prevents the exhaust pressure loss described above but also has an effect of preventing the wind noise of the exhaust and the heat of the hot exhaust from being transmitted to the exhaust port cover.
The inclined plate portion that is inclined upward is disposed so that the upper portion of the inclined plate portion is inclined away from the exhaust port of the through-wall type combustor, and the flow of exhaust gas from the exhaust port flows smoothly. The inclination angle is preferably 5 to 50 degrees, more preferably 20 to 30 degrees with respect to the vertical plane.
Moreover, the dimension in the width direction (longitudinal direction) of the inclined plate portion facing the exhaust port with a gap is formed to be about 20 mm larger than the dimension in the width direction of the exhaust port of the through-wall type combustor, The height in the vertical direction of the inclined plate portion is also formed to be about 30 mm larger than the height in the vertical direction of the exhaust port so that the area of the inclined plate portion is larger than the ejection area of the exhaust port. Note that the corners and end portions of the rectangular inclined plate portion are subjected to goby folding, curling or rounding for safety considerations when a human body or the like touches.

Hereinafter, embodiments of the exhaust port cover of the through-wall type combustor according to the present invention will be described in detail with reference to FIGS.
1 is a perspective view of a through-wall type combustor fitted with an exhaust port cover according to the present invention, FIG. 2 is a schematic longitudinal sectional view of a through-wall type combustor equipped with an exhaust port cover according to the present invention, and FIG. FIG. 4A is a cross-sectional view showing an example of an on-site construction state of a wall through-hole type combustor attached with an exhaust port cover according to the invention, and FIG. FIG. 4 (b) is a vertical sectional view of the state of construction of the through-wall type combustor to which the exhaust port cover according to the present invention is attached, and FIG. 5 (a) is a cross-sectional view of the through-wall type combustor according to the present invention. The exploded perspective view of an exhaust-port cover, (b) is a perspective view of the assembly state of the exhaust-port cover of the wall penetration installation type combustor by this invention.
1 and 2, the through-wall type combustor 6 burns air necessary for combustion by performing air supply 27 from an air supply port 8 provided in the lower part on the outdoor side of the main body case 9 by a fan 28 inside the main body case 9. After being sent into the chamber 26 and combusted in the combustion chamber 26, the exhaust 16 passes through the heat exchanger 30 and is discharged to the outside through the exhaust chamber 31 through the exhaust port 7. As shown in FIGS. 7 and 8 as the prior art, this exhaust is normally discharged horizontally to the outdoor 1 side without the exhaust cover, but in the present invention, as shown in FIGS. By providing the exhaust port cover 10 to the exhaust port 16, the exhaust 16 is guided and discharged mainly in the upward direction and in the lateral direction of the exhaust port cover.

  As shown in FIG. 3, the through-wall type combustor 6 is inserted from the indoor 3 side into the through-hole 5 of the outer wall that penetrates from the indoor 3 to the outdoor 1, and the air supply port of the through-wall type combustor 6. 8 and the exhaust port 7 (see FIG. 1) are constructed so as to be located in the outdoor 1. In this construction state, as shown in FIG. 3, the connecting portion (connecting portion of piping) 2 of the through-wall combustor 6 is installed so as to be located on the wall surface side of the indoor 3.

  The exhaust port cover 10 that guides the exhaust 16 from the exhaust port 7 upward is provided in FIG. As shown to (a) and (b), from the exhaust port 7 attached to this attachment plate 12 and the attachment plate 12 which consists of a stainless steel plate attached to the main body case 9 of the exhaust port 7 lower part in the wall penetration installation type combustor 6 It comprises a guide plate 11 made of a stainless steel plate that guides the discharged exhaust gas upward.

As shown in FIGS. 5A and 5B, details of the mounting plate 12 and the guide plate 11 shown in FIG. 4 are as follows. First, the mounting plate 12 is mounted in a substantially horizontal direction from the mounting portion 12a and the upper end of the mounting portion 12. It is formed in a shape having a projecting portion 12b formed by projecting and a connecting portion 12c formed by inclining upward from the front end of the projecting portion 12b, and is planar from the projecting portion 12b to the lower portion of the connecting portion 12c. A drainage opening 12d having a substantially rectangular shape is formed.
On the other hand, the guide plate 11 is formed in a shape having a water receiving plate portion 11a and an inclined plate portion 11b, and the left and right end portions and the corner portion of the inclined plate portion 11b are subjected to goby folding in consideration of safety. ing.
As shown in FIG. 5B, the guide plate 11 has a water receiving plate portion 11a located on the lower surface side of the protruding portion 12b of the mounting plate 12 and a substantially triangular drainage gap on the lower surface of the protruding portion 12b. The drainage port 12d is covered from the lower surface side so that 15 is formed, the inclined plate portion 11b of the guide plate 11 is screwed to the connecting portion 12c of the attachment plate 12, and the guide plate 11 is assembled to the attachment plate 12. In the embodiment, the guide plate 12 is attached to the attachment plate 11 using screws from the viewpoint of cost and on-site workability. However, the guide plate 12 may be attached by welding such as spot welding, rivet or caulking.

  In the drainage gap 15 described above, the rainwater entering from the drainage port 12d of the projecting portion 12b falls on the water receiving plate portion 11a, and the rainwater on the dropped water receiving plate portion 11a becomes the water receiving plate portion 11a. The size is such that it can drip from the opening at both ends and be discharged to the outside.

  As shown in FIG. 4 (b), the exhaust port cover 10 having the guide plate 11 attached to the mounting plate 12 as described above has a through-wall installation type combustion in the mounting portion 12 portion of the mounting plate 12 of the exhaust port cover 10. It attaches to the lower part of the exhaust port 7 in the main body case 9 of the machine 6 using screws or the like so that the inclined plate portion 11b of the exhaust port cover 10 faces the exhaust port 7 with a gap.

In the embodiment, in consideration of the appearance and safety, the height of the upper end of the inclined plate portion 11b is set so as to pass through the wall in a state where the exhaust port cover 10 is attached to the exhaust port 7 of the through-wall type combustor 6. The height is approximately the same as the upper surface of the main body case 9 of the installation type combustor 6, and the widthwise dimension of the inclined plate portion 11b is the same as the widthwise dimension of the main body case 9. However, the dimension in the width direction of the guide plate 11 may be slightly larger than the dimension in the width direction of the exhaust port 7.
Further, the mounting plate 12 is formed so that the widthwise dimension thereof is substantially the same as that of the guide plate 11.

1 is a perspective view of a through-wall combustor equipped with an exhaust port cover according to the present invention. It is a schematic longitudinal cross-sectional view of the wall penetration installation type combustor which attached the exhaust-port cover by this invention. It is sectional drawing which shows an example of the field construction state of the wall penetration installation type combustor which attached the exhaust-port cover by this invention. (A) is a top view of the on-site construction state of the wall through-hole type combustor attached with the exhaust port cover according to the present invention, and (b) is the on-site construction state of the wall-through type combustor with the exhaust port cover according to the present invention. FIG. (A) is a disassembled perspective view of the exhaust port cover of the through-wall type combustor according to the present invention, and (b) is a perspective view of the assembled state of the exhaust port cover of the through-wall type combustor according to the present invention. It is a perspective view from the exhaust-port side of the conventional wall penetration installation type combustor. It is sectional drawing of the state which constructed the conventional wall penetration installation type combustor in the through-hole of the outer wall. It is sectional drawing which shows an example of the local construction state of the conventional wall penetration installation type combustor.

Explanation of symbols

1 Outdoor 2 Connection (Piping connection)
DESCRIPTION OF SYMBOLS 3 Indoor 5 Through-hole 6 Wall penetration installation type combustor 7 Exhaust port 8 Air supply port 9 Main body case 10 Exhaust port cover 11 Guide plate 11a Water receiving plate part 11b Inclined plate part 12 Mounting plate 12a Mounting part 12b Protruding part 12c Connection Portion 12d Drain port 13 Back surface 14 Screw 15 Drain gap 16 Exhaust 26 Combustion chamber 27 Air supply 28 Fan 30 Heat exchanger 31 Exhaust chamber

Claims (1)

An air supply port and an exhaust port located above the air supply port are formed in the main body case, the air supply port and the exhaust port are located outdoors, and the connection portion of the piping is located on the indoor wall surface side. a discharge port cover to guide the exhaust from the exhaust port located in the outdoor wall penetrating stationary burner installed in the through hole of the outer wall upwards, out of the mounting portion and the mounting portion to said body case And a mounting plate provided with a projecting portion projecting so as to be located below the exhaust port and above the air supply port and provided with a water drain port, on both sides of the lower surface side of the water drain port. A water receiving plate portion that covers the drain port from the lower surface side so that a water drain gap is formed by opening an opening, and the water receiving plate portion is inclined upward from the outer end of the water receiving plate portion to exhaust air from the exhaust port. An inclined plate portion that is guided upward, and the inclined plate portion of the guide plate is connected to the exhaust port. So as to face a septum, outlet cover through-wall installation type burner comprising mounting the mounting portion of the mounting plate to the outlet downwards.

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