JPH0629630Y2 - Combustion device mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a structure for mounting a combustion device that facilitates mounting work of the combustion device on a heat exchanger.

[Prior Art] Conventionally, when a combustion device is installed below a heat exchanger such as a water heater or a boiler, the heat exchanger and the combustion device are aligned with each other, and then the screw is screwed on the combustion device. A device mounting structure is known.

In the conventional structure for mounting the combustion device, the position of the combustion device and the heat exchanger were adjusted by manually pressing the combustion device, and therefore the screwing operation could not be easily performed.

In order to solve the drawbacks of the conventional mounting structure of the combustion apparatus, the mounting structure of the combustion apparatus disclosed in Japanese Utility Model Publication No. 58-34373 has been proposed.

This mounting structure has a receiving rail on the heat exchanger side and a mounting rail on the combustion device side that slidably engages with the receiving rail. The receiving rail and the mounting rail are engaged with each other. After that, the combustion device is attached by sliding it to the heat exchanger side.

[Problems to be Solved by the Invention] However, in the latter attachment structure of the combustion device, only the heat exchanger and the combustion device are assembled, and the heat exchanger and the combustion device are assembled with low strength. It was

As a result, there is a problem that vibration noise is generated between the combustion device and the heat exchanger due to the combustion energy of the combustion device.

Further, in the combustion device, the exhaust gas accompanying combustion must be installed so as not to leak to the outside, but when the assembly strength is insufficient as described above, the exhaust gas leaks between the heat exchanger and the combustion device, There has been a problem that a condition such as further sealing the periphery of this combustion device is required.

In view of the above-mentioned conventional problems, an object of the present invention is to provide a mounting structure for a combustion device, in which the assembling strength between the heat exchanger and the combustion device is improved and the exhaust gas of the combustion device can be prevented from leaking.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention is a combustion apparatus installed below a heat exchanger such as a water heater or a boiler so as to form a combustion flame toward the heat exchanger. In the mounting structure of (1), an airtight packing is provided between the heat exchanger and the combustion device, and a receiving rail is provided on the lower side of the heat exchanger and the receiving rail is provided on the upper side of the combustion device. Install the mounting rails that engage laterally slidably on the rails,
A first protrusion that guides the front end side of the mounting rail to be inserted obliquely upward so that the upper surface of the insertion end side of the combustion device is pressed against the packing at the front end side of the receiving rail in the insertion direction of the mounting rail. A rear end side in the insertion direction of the mounting rail, the rear end side of the mounting rail to be inserted is guided obliquely upward, and the upper surface of the combustion device at the rear end side is pressed against the packing. It is characterized in that a second protrusion is formed.

[Operation] According to the present invention, when the combustion device is attached to the heat exchanger, it is fixed by inserting the mounting rail installed on the upper side of the combustion device into the receiving rail installed on the lower side of the heat exchanger. To be done.

That is, insert the mounting rail into the receiving rail from the lateral direction,
When the tip side of the mounting rail reaches the tip side of the receiving rail, the inserting force from the lateral direction is converted into an upward moving force, and the tip of the mounting rail is guided obliquely upward by the first protruding portion of the receiving rail. To be done. Due to this upward guiding action, the tip side of the combustion device moves toward the packing,
Press against this packing.

On the other hand, by inserting this mounting rail into the receiving rail,
When the rear end side of the mounting rail reaches the rear end side of the receiving rail, it is similarly converted into an upward moving force and guided upward by the second protrusion formed on the mounting rail.
Due to this upward guiding action, the rear end side of the combustion device moves toward the packing and comes into pressure contact with the packing.

Moreover, since the airtight packing is interposed between the heat exchanger and the combustion device, the airtight state of the combustion device is further improved, and leakage of exhaust gas can be reliably prevented.

[Embodiment] FIGS. 1 to 5 (a) (b) (c) show an embodiment of the present invention, in which 10 is a water heater main body and 20 is a pressure spray attached to the water heater main body 10. Type combustion apparatus (hereinafter referred to as a combustion apparatus).

The water heater main body 10 includes large and small heat exchangers 12 and 13 wound with a heat exchange pipe 11, a substrate 14 on which the heat exchangers 12 and 13 are installed, and a leg portion 15 that supports the substrate 14.
A base 16 on which the legs 15 are erected is provided, and a pair of receiving rails 30 for mounting the combustion device 20 is provided on the lower surface of the substrate 14.

As shown in FIG. 2, each of the receiving rails 30 is provided along both sides of the substrate 14 in the width direction, and has a horizontally extending support plate 31, and a guide extending upward from one width direction end of the support plate 31. The mounting plate 3 includes a plate 32, a vertical plate 33 extending upward from the other end of the support plate 31 in the width direction, and a mounting plate 34 horizontally extending outward from the upper end of the vertical plate 33.
The upper surface of 4 is fixed to the lower surface of the substrate 14. Also,
The guide plate 32 is formed to have a smaller length than the vertical plate 33, and a first projecting portion 32a having an inclined portion 32a 'is provided at the tip end side in the insertion direction of the combustion device 20, and a mounting rail 27 described later is installed. It is designed to guide you upwards.

The combustion device 20 includes a burner casing 21 in which a plurality of burner bodies (not shown) are installed, a blower 22 for feeding combustion air to the burner bodies, and an electromagnetic pump 23 for feeding fuel to the burner bodies. The combustion flame from each of the burner bodies is jetted from a plurality of draft tubes 25 in which the stabilizer 24 is provided.

The burner casing 21, as shown in FIG.
The opening 21 is formed in a horizontally long rectangular parallelepiped shape having an opening at the top.
The upper part of a is covered with a cover plate 26, and the draft tubes 25 are mounted on the cover plate 26. A support plate 27a extending horizontally outward and a guide plate 27b extending downward from the tip of the support plate 27a are formed at the upper ends of the widthwise both side plates 21b of the burner casing 21. , 27b form a mounting rail 27 for mounting the combustion device 20 to the water heater main body 10. Further, the guide plate 27b is provided with a second projecting portion 27c having an inclined portion 27c 'on the rear end side in the inserting direction, and when inserted between the guide plate 32 and the vertical plate 33 of the receiving rail 30, The combustion device 20 is guided upward. In addition, 28 is a partition wall of each of the draft tubes 25 provided upright on the cover plate 26.
A packing 29 made of a heat-resistant material is provided along the upper end of the burner casing 21.

Reference numerals 40 and 41 denote mounting plates fixed to one side of the burner casing 21 in the longitudinal direction. As shown in FIG. 1, the mounting plate 40 is extended upward along the one side, and The plate 41 has an L-shaped cross section, and the mounting plate 41
It is fixed to the back of one side. Also, the mounting plate 40
Screw holes 42a, 42b, 42c are provided respectively on the lower part on the other side and on the upper part on the one side of each mounting plate 41, and the side plate of the water heater body 10 corresponding to the screw holes 42a to 42c is formed. Are also screw holes 10a, 10b, 10c
Are provided respectively. Further, each of the screw holes 10a to 1
The combustion device 20 is fixed to the water heater body 10 at 0c and 42a to 42c.

In this embodiment, when the combustion device 20 is mounted below the heat exchangers 12 and 13 of the water heater main body 10,
First, as shown in FIGS. 4 (a) and 5 (a), the guide plate 27b of the mounting rail 27 of the burner casing 21 is placed on the support plate 31 of the receiving rail 30 and the receiving rail 3
The 0 guide plates 32 are brought into contact with the lower surfaces of the support plates 27a of the mounting rails 27, and the tip ends of the mounting rails 27 are inserted from the tip ends of the receiving rails 30.

Next, as shown in FIGS. 4 (b) and 5 (b), the tip of the mounting rail 27 is attached to the inclined portion 32 of the receiving rail 30.
A'is used as a guide to move to the upper portion of the first protrusion 32a, and the second protrusion 27c of the mounting rail 27 is moved to the tip of the receiving rail 30 using its inclined portion 27c 'as a guide.

Then, as shown in FIGS. 4 (c) and 5 (c), the mounting rail 27 is further inserted into the receiving rail 30, and the mounting rail 27 is completely accommodated in the receiving rail 30. This completes the alignment of the combustion device 20 with the water heater main body 10.

Then, the screws 43a to 43c are attached to the screw holes 10a.
10c, 42a to 42c, and the combustion device 20
Is fixed to the body 10 of the water heater, and the mounting work is completed.

As described above, according to the present embodiment, it is not necessary to manually press the combustion device to perform alignment as in the conventional case, and it is sufficient to simply insert the mounting rail 27 into the receiving rail 30. Since the operation of pressing by hand is not required, the combustion device 20 can be easily attached.
Further, since the guide plates 27b and 32 of the mounting rail 27 and the receiving rail 30 are provided with the first and second projecting portions 27c and 32a on the rear end side, the insertion is started as shown in FIG. 5 (a). So that the substrate 14 and the packing 2
Even if the gap with 9 becomes large, it will be
As shown in FIG. (C), the gap disappears and the combustion device 20 comes into pressure contact with the water heater body 10. Therefore, the combustion gas of the combustion device 20 does not leak from the gap.

Although the above-mentioned embodiment describes the combustion apparatus attached to the water heater, the same can be applied to the combustion apparatus attached to the boiler or the like.

[Advantage of the Invention] As described above, according to the present invention, the receiving rail on the heat exchanger side and the mounting rail for the combustion apparatus are provided with the first and second protrusions for guiding the combustion apparatus obliquely upward. Therefore, when the mounting rail reaches each of the protrusions, the lateral movement force of the combustion device is converted into the upward movement force, and the combustion device is pressed against the packing. Therefore, the combustion device can be easily and airtightly fixed to the heat exchanger, the mounting strength of the combustion device is improved, and the generation of combustion noise due to the combustion energy of the combustion device is prevented.

[Brief description of drawings]

FIGS. 1 to 5 (a) (b) (c) show an embodiment of the present invention. FIG. 1 is an assembly perspective view showing a mounting structure of a combustion device to a water heater main body, and FIG. The figure is an assembled perspective view showing the mounting structure of the receiving rail, Fig. 3 is a perspective view showing the burner casing, and Figs. 4 (a), (b) and (c) show the engagement state between the mounting rail and the receiving rail. 4 (a) is an explanatory view showing a state at the start of mounting, FIG. 4 (b) is an explanatory view showing a state in which the tip of each rail is in contact with each protruding portion, and FIG. 4 (c). ) Is an explanatory view showing the state at the end of installation, and FIGS. 5 (a), (b) and (c) show the engagement state between the mounting rail and the receiving rail.
FIG. 5 (a) is a cross-sectional view showing the state at the start of mounting, FIG.
FIG. 5B is a sectional view showing a state in which each rail is in contact with each protruding portion, and FIG. 5C is a sectional view showing a state at the end of attachment. In the figure, 10 ... water heater main body, 12, 13 ... heat exchanger,
20: Pressure spray combustion device, 27: Mounting rail,
30 ... Receiving rail.

Claims (1)

[Scope of utility model registration request] 1. A structure for mounting a combustion device, which is installed below a heat exchanger such as a water heater or a boiler so as to form a combustion flame toward the heat exchanger, wherein the heat exchanger and the combustion device are connected to each other. An airtight packing is interposed between the heat exchanger and a receiving rail on the lower side of the heat exchanger, and a mounting rail on the upper side of the combustion device for laterally slidably engaging the receiving rail. Installed respectively, at the tip end side of the receiving rail in the insertion direction of the attachment rail, the tip end side of the attachment rail to be inserted is guided obliquely upward so that the upper surface of the insertion tip end side of the combustion device is pressed against the packing. A first projecting portion for allowing the rear end side of the mounting rail to be inserted to be guided obliquely upward at the rear end side of the mounting rail in the insertion direction so that the upper surface of the combustion device on the rear end side of the insertion side is inserted. Pressure on the packing A structure for mounting a combustion device, characterized in that a second projecting portion to be brought into contact is formed.