JPH0424295Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an air supply device for a bathtub, a heater, or other combustor.

<Prior Art> Fig. 3 shows a configuration diagram of a bathtub as a conventional combustor.

An exhaust pipe 2 is provided on a bathtub body case 1, and an air supply port 3 is provided on the side of the bathtub body case 1. There is a burner (not shown) inside the bathtub main body case 1, and when the burner is incompletely burned,
A safety device is installed to detect this and stop the supply of combustion.

<Problems to be Solved by the Invention> When a combustor such as the one described above is installed indoors, there is a problem of contamination of the indoor air with carbon monoxide and the like caused by the exhaust gas. In this case, the indoor air quality deteriorates from the top down. In the conventional device described above, the air supply port 3 is located on the side of the combustor installed, so
Even if the interior of the room is considerably contaminated, the degree of contamination of the air supplied to the burner from the air supply port 3 located at a low position is low. Therefore, the combustion of the burner is stopped by the safety device only after the indoor air has become considerably contaminated, which is insufficient as a preventive measure against carbon monoxide poisoning and the like.

In addition, the gas safety device described in Japanese Utility Model Publication No. 53-69828 describes a configuration in which the intake port is provided at the top of the combustor, but the intake port is located low and has little preventive effect. It was hot.

<Purpose> Therefore, the present invention solves the drawbacks of the above-mentioned conventional technology,
When indoor air is contaminated by a combustor, etc.
The purpose of the present invention is to provide a device that can detect this at an early stage and stop combustion in a combustor.

<Means for Solving the Problems> The combustor air supply device of the present invention includes a burner for burning fuel in the combustor main body case, and stops the supply of the fuel when the burner is incompletely combusted. In a combustor equipped with a safety device for extinguishing a fire by extinguishing a fire, a supply cylinder for supplying air to the burner from the outside and an exhaust pipe are erected to protrude upwardly from the combustor main body case, and the supply cylinder It is characterized in that the air supply port at the top end is higher than the baffle part at the top end of the exhaust pipe.

<Function> Since the supply cylinder that supplies air to the burner from the outside is provided so as to protrude upwardly from the combustor main body case, air from a relatively upper part of the room can be taken directly into the burner. Therefore, the supply cylinder plays the role of a detection cylinder for contaminated air, and if the indoor air becomes contaminated with carbon monoxide, etc., the contaminated air is supplied to the burner relatively quickly. Ru. As a result, combustion in the burner becomes incomplete due to the contaminated air, and a safety device is activated to stop combustion. That is, according to the present invention, combustion in the combustor, which is a source of pollution, is stopped before any inconvenience caused to the human body due to air pollution occurs. In addition, by making the air supply port at the top of the intake cylinder higher than the baffler at the top of the exhaust cylinder, it is possible to prevent the exhaust gas leaking from the baffle from being directly sucked in, and also to improve the interior of the room. Air can be directly inhaled from a high position, and indoor air pollution can be detected early and reliably, and safety devices can be activated.

<Example> FIG. 1 is a front view of an implementation device of the present invention, and FIG. 2 is a schematic diagram of the internal configuration of the implementation device. Reference numeral 1 denotes a bathtub body case, more generally the combustor body case. For this bathtub body case 1,
An exhaust pipe 2 and a supply pipe 4 are erected from the ceiling. This supply cylinder 4 is for supplying the air required for combustion from the outside to the burner 5 in the bathtub body case 1, and as shown in the figure, the bathtub body case 1
It is installed in a shape that projects high upwards from the top. Air is taken into the interior through the upper end air supply port 4a of the supply cylinder 4.
The height of the supply cylinder 4 is preferably higher, but for example, with the exhaust pipe 2 as a reference, the baffler part 2a of the exhaust pipe 2 is
It can be somewhat higher than that. By providing the supply cylinder 4 so as to protrude upwardly from the bathtub body case 1, air from a relatively upper position in the room can be supplied to the burner 5.

Inside the bathtub main body case 1, there is a burner 5 for burning fuel such as fuel gas or oil, and a safety device that stops the supply of the fuel and extinguishes the fire when incomplete combustion occurs by the burner 5. are provided. The safety device includes, for example, a thermocouple 7 that detects the state of the flame of the pilot burner 6;
The control means 10 opens and closes the on-off valve 9 of the fuel supply path 8 according to the electromotive force generated in the thermocouple 7.

When air contaminated with carbon monoxide or the like is supplied for combustion, the flame of the pilot burner 6 lifts, thereby reducing the electromotive force generated by the thermocouple 7. Then, the control means 10 moves and the on-off valve 9 is closed.

<Effects> The present invention has the above-mentioned configuration, and the supply cylinder that supplies air to the burner is erected to protrude upwards from the combustor main body case, so that the air in the relatively upper part of the room where the combustor is installed is can be directly taken in and used for combustion. This makes it possible to directly match the activation level of the safety device against incomplete combustion in the burner, close to human breathing height, to the actual contamination conditions at that location. Situations such as carbon poisoning can be more reliably prevented. Of course, since the air supply port at the top of the supply cylinder is located above the baffle part at the top of the exhaust pipe, exhaust gas from the exhaust pipe is prevented from directly entering the supply cylinder, which more accurately reflects the indoor air pollution state. can be done.

[Brief explanation of the drawing]

FIG. 1 is a front view of an implementation device of the present invention, FIG. 2 is a schematic internal configuration diagram of the implementation device, and FIG. 3 is a front view of a conventional device. 1... Bath boiler body case, 2... Exhaust pipe, 4...
...Charge cylinder, 5...Burner, 6...Pilot burner, 7...Thermo couple, 8...Fuel supply path,
9... Opening/closing valve, 10... Control means.

Claims (1)

[Scope of utility model registration request] In a combustor that includes a burner for burning fuel in a combustor main body case and a safety device that stops the supply of the fuel and extinguishes the fuel when the burner is incompletely burned, air is supplied to the burner from the outside. The supply cylinder and the exhaust pipe are arranged so as to protrude upwardly from the combustor main body case, and the air supply port at the upper end of the supply cylinder is provided higher than the baffle part at the upper end of the exhaust pipe. A combustor air supply device characterized by: