JPH0616287Y2 - Rear exhaust combustion equipment - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application)
The present invention relates to a rear exhaust combustion device having improved sealing performance.

(Prior Art) Explaining the structure of the exhaust part of a conventional rear-exhaust-type combustion appliance, referring to the heater / water heater shown in FIG. 3, (21) is an exhaust collecting cylinder on the water heater side, and (22) is the heater side. The exhaust collecting cylinder, (23) is the exterior of the water heater with a heater, and the exhaust top (24) is attached to the outside of the appliance so that it can exhaust to the rear of the appliance.
The mounting of (24) is done with the screw (27) through the packing (25) and (26) through the flanges of the two exhaust collecting cylinders (21) and (22).
It is designed to be attached to 3). And this exhaust top
The exhaust pipe connecting portion (28) of (24) is connected to the exhaust pipe (29) fixedly installed in the combustion appliance installation chamber so that the exhaust air is exhausted from the installation chamber of the water heater with a heater to the outside.

(Problems to be solved by the invention) In the case of the conventional structure described above, when exchanging the instrument at the site where the instrument is installed, the screw (27) is removed to detach the instrument body, and the exhaust top (24) is left on the site. Only the screw is replaced, but the screw (27) is fastened through the flanges of the two exhaust collecting cylinders (21) and (22), so it is difficult to remove in a narrow space, making it difficult to remove and workability is extremely difficult. Bad for Also, the packings (25) and (26) are inserted and sealed.
This is a field work, and there is a problem that the sealing property due to the sandwiching of the packings (25) and (26) remains uneasy.

(Means for Solving the Problem) In order to solve the above-mentioned problems, the present invention connects an exhaust duct having an exhaust connecting portion to an exhaust collecting cylinder, arranges the exhaust duct inside the exterior, and mounts the exhaust duct having an opening on the exterior. A portion is provided, and an exterior lid plate having an exhaust pipe connecting portion for inserting and connecting the exhaust connecting portion is detachably attached to the outside of the opening of the exhaust duct attaching portion from the inside of the instrument.

(Operation) When the equipment body is removed at the site, an exhaust duct equivalent to a conventional exhaust top is placed inside the equipment body, and the exterior is part of the exterior attached to the exhaust duct attachment opening provided on the exterior. When the lid plate is removed from the inside of the device, the exterior lid plate remains outside the device and the device body can be easily removed. Also, when attaching the instrument body, it is sufficient to attach the exterior of the instrument body to the exterior cover plate left outside the instrument with a screw, and the instrument can be easily replaced.

(Embodiment) FIG. 1 is an exploded perspective view of an exhaust portion of a rear exhaust type combustion apparatus showing an embodiment of the present invention. (1) is an exhaust collecting cylinder on the water heater side, and (2) is a heater side. Exhaust collecting cylinder, (3) is an exhaust duct,
Connect the exhaust stacks (1) and (2) to one side and the exhaust stack to the other side
It has an exhaust connection (4) which is an exhaust outlet from (1) and (2). (5) is the packing, (6) is the exterior of the water heater with a heater, and the exhaust duct mounting part (7) for mounting the exhaust duct (3) arranged inside the exterior (6) is provided at the rear part of the exterior. It has an opening (8). (9) is an exterior lid plate that is attached to the outside of the opening (8) of the exhaust duct attachment portion (7) and closes the opening (8) of the exhaust duct attachment portion (7) to form a part of the exterior, It has an exhaust stack connection part (10) for connecting to an exhaust stack (not shown) fixedly installed in the equipment installation room. (11) is the opening (8) of the exhaust duct mounting part of the exterior (6)
This is a screw for mounting and fixing the outer cover plate (9) from the inside of the device. (12) is the exhaust duct (3) exhaust connection (4) and exterior cover plate
It is a packing that seals between (9).

The present invention has the above-mentioned structure, and the exhaust duct (3) connected to the exhaust collecting cylinders (1) and (2) is housed and installed in the exterior (6) of the device, and the exterior (6) to which the exhaust duct (3) is attached ( Attach the exterior cover plate (9) from the inside of the exterior (6) with screws (11) to form a part of the exterior (6) in the opening (8) of the exhaust duct attachment part (7) of (6) and close it. Since the exhaust pipe to the outside of the equipment installation room is connected to the exhaust pipe connection part (10) provided on the exterior cover plate (9), when replacing the device, attach the mounting screw (11) of the exterior cover plate (9) to the device. If removed from the inside, the outer cover plate (9) can be easily removed and replaced, leaving the outside of the device. Also, when mounting, the mounting screw (11) can be mounted from the inside of the device, and it can be easily mounted, and the sealing property is small (12) that is fitted on the outside of the exhaust connection (4) of the exhaust duct (3). ), The outer cover plate (9) can be easily sealed by pressure contact.

(Effect of the Invention) As described above, the present invention has the exhaust duct connected to the exhaust collecting cylinder inside the exterior, and the exterior lid plate connected to the exhaust duct outside the opening of the exhaust duct mounting portion provided on the exterior. Since it is detachably attached from the inside of the equipment, when removing the equipment at the equipment installation site, you can simply remove the screw from the inside of the equipment to leave the exterior lid plate on the site and easily remove the equipment. . Also, when mounting the equipment, it can be easily installed by tightening the outer lid plate from the inside of the equipment, and the sealing property is good because it is pressed against the exhaust duct and the outer lid plate when mounting the equipment. Therefore, the workability at the time of exchanging the device and the exhaust part sealing property can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an exhaust portion of a rear exhaust combustion device showing an embodiment of the present invention, FIG. 2 is an assembled sectional view of FIG. 1, and FIG.
FIG. 1 is an exploded perspective view of an exhaust portion of a rear exhaust type combustion instrument showing a conventional example. (1) …… Exhaust manifold (2) …… Exhaust manifold (3) …… Exhaust duct (4) …… Exhaust connection (6) …… Exterior (7) …… Exhaust duct mount (8)… … Opening (9) …… Exterior cover plate (10) …… Exhaust pipe connection

Claims (1)

[Scope of utility model registration request] 1. An exhaust duct having an exhaust connecting portion is connected to an exhaust collecting cylinder and disposed in an exterior, an exhaust duct mounting portion having an opening is provided in the exterior, and the exhaust duct mounting portion has an opening outside the opening. A rear exhaust type combustion instrument, wherein an exterior cover plate having an exhaust pipe connecting section for inserting and connecting an exhaust connecting section is detachably attached from the inside of the instrument.