JPS6030669Y2 - Supply and exhaust top of forced combustion gas water heater - Google Patents

Description

[Detailed description of the invention] This invention relates to the supply/exhaust top of a forced combustion gas water heater. Instead, the supply/exhaust top of a gas water heater installed horizontally is inserted from inside the room, and the combustion exhaust gas from the burner's forced combustion is discharged in a straight line.In other words, this is a water heater that is integrated with the supply/exhaust top. The purpose of this device is to allow the floor surface to be used for other purposes by mounting the main body laterally from the wall or ceiling.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air supply/exhaust top in a forced combustion gas water heater according to the present invention will be described in detail below with reference to the accompanying drawings.

Reference numeral 1 denotes a water heater main body, and this main body 1 includes a combustion chamber 2, a heat exchanger 6 provided with a water supply port 3, a hot water outlet 4 on the upper side, and a drain port 5 on the lower side, and a heat exchanger 6 facing the heat exchanger 6. A burner 8 equipped with a fan 7 is built in with an air supply passage 9, and the water supply port 3, hot water outlet 4, and drain port 5 are each exposed from the main body 1.

The heat exchanger 6 is provided with an inner cylinder 11 facing the combustion chamber 2 and serving as an exhaust gas from an air supply/exhaust top 10 consisting of an inner and outer cylinder.
Furthermore, the tip of the inner cylinder 11 is connected to a partition plate 13 that partitions the outer cylinder 12 of the air supply/exhaust top 10 to communicate with the exhaust chamber 14 of the outer cylinder 12, and furthermore, exhaust holes are provided in the outer cylinder 12 around this exhaust chamber 14. 15 is the provision.

The distal end of the outer cylinder 12 is closed to constitute the exhaust chamber 14, and the base end is connected to the main body 1. Furthermore, multiple air supply holes 16 are provided on the base end side of the exhaust hole 15. The sucked air passes between the inner and outer cylinders and is supplied into the main body 1.

The burner 8 is connected to a gas port 17 provided in the main body 1 through a gas conduit 19 in which a solenoid valve 18 such as a butterfly solenoid valve is interposed. Forced combustion occurs in combustion chamber 2.

Reference numeral 20 denotes a through hole drilled in 21. The outer cylinder 11 of the air supply/exhaust top 10 is inserted into this through hole 20 from the indoor side, a packing 22 is placed between the wall 21 and the main body 1, and it is attached with a steel 23.

The present invention has the above-mentioned configuration, in which the gas supplied from the gas port 17 is sent to the burner 8 through the solenoid valve 18, forcedly combusted in the combustion chamber 2 by the air blown by the fan 7, and exchanges heat with the water supplied to the exchanger. The combustion exhaust gas forms a straight line and passes through the inner cylinder 11, which becomes the exhaust temperature of the corresponding supply/exhaust top, enters the exhaust chamber 14, and is exhausted from the exhaust hole 15.

On the other hand, air from the air supply hole 16 bored in the outer cylinder 12 flows through the passage between the inner cylinder 11 and the outer cylinder 12, is supplied into the main body 1, and further flows outside the exchanger 6 and is sent to the burner side. It will be done.

As mentioned above, the burner 8 corresponding to the combustion chamber 2 is forcibly sent by the fan 7 to forcibly burn the gas, and the combustion exhaust gas of this burner is heat exchanged in a straight line, and the air supply and exhaust top integrated with the main body is heated. Therefore, after removing the exhaust pipe of a conventional indoor natural exhaust water heater from the through hole, use this through hole as it is to connect the air supply and exhaust top on the central axis of the main body. The device is inserted and the main body is attached using a stay, and it is stable because the air supply/exhaust top is the center of the installation, and it can also be used for other purposes on the floor.

In addition, since the burner uses a fan to force combustion, the combustion exhaust gas burns without being drafted along the central axis, making the heat exchanger more efficient.

[Brief explanation of drawings]

The drawings show an embodiment of the supply/discharge top of the forced combustion gas water heater according to the present invention. Fig. 1 is a front view of an indoor boiler using the conventional natural exhaust method, and Fig. 2 is the same as Fig. 1. FIG. 3 is a front view of the water heater of the present invention using through holes, and FIG. 3 is a longitudinal sectional front view of FIG. 2. 1...Water heater body, 2...Combustion chamber, 3
...Water inlet, 4...Hot water outlet, 5...
...Drain port, 6...Heat exchanger, 7...
・Fan, end... Burner, 9... Air supply passage, 10... Supply/exhaust top, 11... Inner cylinder, 12... Outer cylinder, 13... Partition plate, 1
4...Exhaust chamber, 15...Exhaust hole, 16
... Air supply hole, 17 ... Gas inlet, 18
... Solenoid valve, 19 ... Gas pipe, 20
......through hole, 23...stay.

Claims (1)

[Scope of utility model registration request] A heat exchanger with a water inlet and a hot water outlet on the upper side and a water outlet on the lower side is built in with an air supply passage between the inner wall of the main body, and further inside the main body, there is a heat exchanger with an air supply passage facing the air supply passage. In a forced combustion gas water heater, a burner equipped with a fan is installed, and forced combustion is performed by the fan's airflow. A supply/exhaust top consisting of an inner and outer cylinder is installed on the same straight line as the top, and the top is made to protrude to the outside through a through hole drilled in the wall.
An air supply hole bored in the air supply outer cylinder of the air supply/exhaust top is communicated with the air supply passage in the main body through a passage between the outer cylinder and the inner cylinder,
Furthermore, the supply/exhaust top of a forced combustion gas water heater has an inner cylinder that serves as an exhaust pipe connected to a combustion chamber within the main body.