JPS6210580Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to improvements in air supply and exhaust tops for combustion appliances such as bathtubs and water heaters.

In the case of a supply and exhaust pipe for a combustion appliance with a double pipe structure, the supply and exhaust air for combustion must be balanced in the supply and exhaust top installed at the tip, and the wind resistance must be sufficient for all wind directions so that the supply and exhaust function always works normally and the burner does not go out accidentally or the combustion does not become incomplete. Also, when installing on the wall of one of the corridors of a high-rise apartment building, it is preferable to make the supply and exhaust top thin. Therefore, although various supply and exhaust tops have been proposed so far, none of them have been put into practical use that completely meets the wind resistance performance for all wind directions and is also thin.

This idea was devised in view of the above points,
One embodiment will be described below with reference to the drawings.

In the drawing, reference numeral 1 denotes a supply cylinder, and an exhaust pipe 2 is inserted through the center of the cylinder, forming a double pipe structure air supply and exhaust pipe A having an air supply gap 10 between the supply cylinder 1 and the exhaust pipe 2. . T is a supply/exhaust top provided at the tips of the supply/exhaust pipes 1 and 2, and is designed to be installed so as to be closely exposed to the outer surface of the side wall 3 of the building. That is, this air supply/exhaust top T has a thin box-shaped air supply top 5 with air supply openings 4, 4' symmetrically communicating with both ends, and an air supply/exhaust top 5 with exhaust openings 6, 6' symmetrically communicating with both ends. In this case, a thin box-shaped exhaust top 7, in which the vertical and horizontal widths D are both smaller than the length L of the air supply top 5, and which provides a sufficient distance between the air supply openings 4, 4' and the exhaust openings 6, 6', is installed in each air supply top. The axes of the air openings 4, 4' and the exhaust openings 6, 6' intersect on a vertical plane, and they are lined up and fixed in the front and back without any gaps, making the whole body flat and thin. In the intake/exhaust top T having the above configuration, the tip opening 8 of the intake cylinder 1 is exposed to the center inside the intake top 5 to communicate the intake air top 5 and the intake cylinder 1, and the inside center of the exhaust top 7 is The exhaust top 7 and the exhaust pipe 2 are communicated with each other by facing the tip opening 9 of the exhaust pipe 2, and supply air is supplied to the combustion chamber of the combustion appliance through the air supply gap 10 from the air supply openings 4 and 4'.
The combustion exhaust from the combustion chamber is released to the outside through the exhaust stack 2.
Through the exhaust openings 6, 6', the exhaust can be carried out properly.

In the embodiment, when attaching the supply cylinder 1 to the building side wall 3 and attaching the supply/exhaust top T to the supply/exhaust pipe A, the insertion hole 1 drilled in the building side wall 3 is used.
Insert the air supply cylinder 1 into the air supply cylinder 1, fix the air supply top 5 to the tip of the air supply cylinder 1 with screws, etc. using a plurality of L-shaped fittings 12, and attach the rear plate 5a of the air supply top 5 to the side wall 3 of the building. in close contact with the outer surface of the That is, air supply top 5
Fixing pieces 13 protruding from both ends of the air supply top 5 are tightly fixed to the outer surface of the side wall 3 by inserting fixing pieces 13 into the bolts 14 implanted in the side wall 3 through their mounting holes 15 and tightening them with nuts 16. In addition, the feed cylinder 1 is inserted through a guide frame 18 that is fixed to the inside of the side wall 3 of the building with bolts 17, and a ring-shaped packing 19 whose inner diameter is slightly smaller than the outer diameter is inserted into the feed cylinder 1. A ring-shaped stopper 20 is inserted into the cylinder 1, and the ring-shaped stopper 20 is tightened to the flange portion of the guide frame 18 via the ring-shaped fitting 19 with a bolt 21, thereby causing the ring-shaped fitting 19 to be compressed and deformed and expanded. Although the guide frame 18 and the feed cylinder 1 are attached to each other in a watertight manner, they may be attached by any other arbitrary means. Further, the exhaust top 7 has its exhaust opening 6,
6' is the air supply opening 4, 4' of the air supply top 5 and the front plate 5 of the air supply top 5 in a state where the respective axis lines are perpendicular to each other.
(b) concentrically and integrally fixed by welding or other means.

In the above configuration, the air supply/exhaust top T has a structure in which the thin box-shaped air supply top 5 and the thin box-shaped exhaust top 7 are arranged in front and back and integrated, so the whole is flat and thin, and can be used in single corridors such as high-rise apartment complexes. Even when it is installed exposed on the side wall 3 of the building (see Fig. 3), it does not get in the way and has a good appearance. In addition, air supply openings 4 provided symmetrically at both ends of the air supply top 5,
4' and the exhaust openings 6, 6', which are symmetrically provided at both ends of the exhaust top 7, are arranged so that their axes intersect at right angles, so that the directions of air supply and exhaust differ by 90 degrees. In addition, the exhaust flow is guided and ejected radially along the box shape, and the air supply ports 4, 4' and the exhaust openings 6, 6' are sufficiently separated by the front plate 5b of the air supply top 5, so that the exhaust air is There is almost no possibility that the air will enter the air supply openings 4, 4'. Furthermore, since the exhaust top 7 is covered with the front plate 7a, the exhaust is not suppressed against the wind from the front, and the air supply ports 4, 4' enter the wind pressure zone formed by the front surface of the side wall 3, and the air supply action is performed. Significant. In the embodiment shown in FIG. 1, the combustion exhaust gas is released horizontally to the left and right, and the supply air is taken in from the top and bottom vertically. The exhaust openings 6, 6' may be located in the left and right horizontal directions, and the exhaust openings 6, 6' may be located in the top and bottom vertical directions.

As explained above, this idea is that the supply and exhaust openings that are symmetrically communicated at both ends are in the cross direction, so that the supply and exhaust flow is sufficiently directed in the cross direction, and the supply and exhaust tops are arranged in the front and rear. Since the air supply opening and exhaust opening are spaced apart from each other with a difference in size, there is no inconvenience of the exhaust pipe going around the intake air, and the exhaust top is kept in place against wind from the front. The wind resistance performance is satisfied in all wind directions, and the air supply and exhaust function always works normally, eliminating dangers such as accidental fire extinguishment and incomplete combustion, and the air supply and exhaust top is extremely thin. Therefore, it is extremely effective when installed exposed on the side wall of a corridor in a high-rise apartment complex.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of this invention.
FIG. 2 is a perspective view showing how the intake cylinder and the air intake top are installed, and FIG. 3 is a side view showing an example of the installed state. A... Supply and exhaust pipe, 1... Supply cylinder, 2... Exhaust pipe, T...
Supply/exhaust top, 3... Side wall of building, 4, 4'... Air supply opening, 5... Air supply top, 6, 6'... Exhaust opening, 7
...exhaust top, 8...tip opening of supply cylinder 1, 9...tip opening of exhaust pipe 2, L...length dimension of intake top 5, D...width dimension of exhaust top 7.

Claims (1)

[Scope of utility model registration request] The exhaust pipe 2 is inserted into the supply pipe 1 to form a double pipe structure, and the supply and exhaust tops T are protruded from the outside of the side wall 3 of the building, with air supply openings 4 and 4' at both ends. A thin box-shaped air supply top 5 is provided in symmetrical communication with each other, and exhaust openings 6, 6' are provided on both ends in symmetrical communication with each other, and the width dimension D is smaller than the length dimension L of the air supply top 5. A thin box-shaped exhaust top 7 is overlapped back and forth with the axes of the air supply openings 4, 4' and exhaust openings 6, 6' intersecting, and the air supply top 5 is attached to the side wall 3 with the exhaust top 7 on the outside. A combustion appliance characterized in that they are disposed substantially in close contact with each other, and that the air supply top 5 faces the tip opening 8 of the supply cylinder 1, and the exhaust top 7 faces the tip opening 9 of the exhaust tube 2. supply and exhaust top.