JPS596199Y2 - Outdoor gas appliances - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an outdoor gas appliance, and particularly to a type of gas appliance that is installed close to the wall of a house.

This type of gas appliance is particularly affected by the wind hitting the wall during windy conditions, and the intake and exhaust balance of combustion air is disrupted by crosswinds, downward winds, and the like.

As a method to prevent such poor combustion, Utility Model Application No. 54-1
There is something disclosed in Publication No. 07535, which is
This relates to a so-called bathtub, in which a burner is provided below a heat exchanger housed within the appliance body, and the inside of the heat exchanger serves as a combustion chamber.

This device has an innovative method for sucking air into the main body of the appliance, with an air intake hole in the top plate, the upper part and the sides other than the house wall side covered with a cover, and this cover also has air inflow holes. Adopt a structure.

Therefore, hot combustion air is drawn into the appliance main body from the intake hole of the top plate through the cover above the top plate and the opening on the wall side of the house, and reaches the combustion chamber below.

In this conventional type, which uses a baffler at the top of the exhaust stack, the wind pressure from the baffler and the wind pressure from the intake system path are balanced, resulting in good combustion, but this baffler type has poor wind resistance against oblique winds. Recently, many structures have been adopted in which exhaust holes are not provided on the upper surface of the exhaust top.

In the case of the above-mentioned intake method, which uses this exhaust top, in which the descending wind is alleviated by a cover that wraps around the top plate and the air is sucked into the appliance body, the pressure on the intake side becomes too high, causing combustion such as lifting. cause defects.

This is because the influence of the wind on the intake hole side occurs.

The present invention aims to improve the combustion performance of this type of gas appliance, which does not have an exhaust hole on the upper surface of the exhaust top, in windy conditions by allowing air to be taken in from a part that is not affected by the wind or has extremely little influence. is the subject.

The technical means of the present invention for solving the above problems is to provide an intake chamber that opens only to the side wall on the side wall of the appliance body facing the wall of the house, and to communicate with the combustion chamber on the outside of the peripheral wall of the intake chamber. An air intake gap is formed, and an air intake hole is opened only in the peripheral wall of the air intake chamber.

The above technical means of the present invention operates as follows.

The intake hole is provided only on the peripheral side of the intake chamber that opens only to the wall surface of the house, and the intake air from the intake hole reaches the lower combustion chamber through an intake gap provided on the outside of the peripheral side.

Since the intake chamber is open only to the wall of the house, wind directed toward the intake chamber from outside the appliance body is blocked from each part of the appliance body, and air flows in through the gap between the appliance body and the wall of the house. Only the air will reach the intake chamber.

Therefore, air is taken in from the air intake holes only from the air intake chamber, which is extremely unaffected by wind.

Since the above technical means works as described above, the present invention has the following unique effects.

Since air is taken only from the intake chamber where the influence of the wind is extremely small in windy conditions, poor combustion due to the influence of the wind can be prevented.

In addition, since the intake hole is provided on the circumferential side of the intake chamber,
In rainy weather accompanied by wind, there is no need to worry about rainwater flowing into the appliance body through the intake hole.

That is, when an air intake hole is provided at the bottom of the air intake chamber, rainwater may be guided by the wind to the bottom side and flow into the appliance body through the air intake hole, but according to the present invention, such inconvenience does not occur. do not have.

Hereinafter, details of embodiments of the present invention will be explained based on the drawings.

The embodiment shown in FIGS. 1 and 2 is a bathtub with a water heater, and inside the appliance body 1, a wind hanging heat exchanger 2 and a water boiling heat exchanger 3 are arranged in parallel, and one heat exchanger 2 is arranged in parallel. A pair of water pipes 4 and 5 attached to the exchanger 2 protrude from a side wall 6 facing the wall surface of the house.

Further, as detailed in FIG. 2, the inside of the instrument main body 1 is divided into two rooms by a partition wall 7 parallel to the side wall. The two heat exchangers are housed, and the other small chamber 9 houses control parts such as a valve device 10.

The upper ends of the heat exchangers 2 and 3 are integrally covered with an exhaust collecting box 11, and an exhaust pipe 12 is connected upwardly to the exhaust collecting box 11, and the upper end of the exhaust pipe is connected to the exhaust pipe 12. It communicates with an exhaust top 13 attached to the section.

Further, the exhaust pipe protrudes through the top plate 14 of the appliance main body 1, and an intake chamber 15 is formed between the top plate and the exhaust collection box 11, and is open only on the side wall 6 side. A plurality of intake holes 16 and 16 with armor plates are opened at appropriate positions on the surrounding wall of the vacant space 8.
The interior communicates with the intake chamber.

On the other hand, the side wall 17 on the opposite side of the side wall 6 is also provided with an air intake hole 18.18 with an armor plate in its upper part to enable air to flow into the small chamber 9 side where the primary air hole portion 20 of the burner 19 opens. ing.

The bathtub with a water heater having the above structure is installed with the side wall 6 facing the bathroom wall of a residence, and is used by connecting the water pipes 4 and 5 to a bathtub (not shown) as appropriate. 21
An appropriate gap 22 is formed between the side wall 6 and the side wall 6.

Therefore, most of the intake air required for combustion flows into the intake chamber 15 from this interval and is further supplied from the intake holes 16. , exhaust collection box 11, exhaust pipe 12 to exhaust top 13
It reaches inside and is discharged from the outlet 23.23 at the upper part of the side wall of the exhaust top.

In the conventional structure, when crosswinds, descending winds, etc. occur, the wind pressure acts on the combustion chamber and causes an adverse effect on combustion (combustion failure), but in the case of the intake system of the above embodiment, the air pressure from any direction Even if wind occurs, the only effect is always due to the air flow along the wall surface 21.

However, as described above, most of the air that was once stored in the intake chamber 15 flows into the empty chamber 8 including the combustion chamber through the intake hole 16.
．． 16, and the intake chamber 15 is shaped by being introduced from the side wall 6, so that it is not directly affected by the wind direction and wind pressure.

That is, the intake chamber 15 exhibits an air storage function.

As a result, most of the air flowing into the empty chamber 8 is caused by the intake holes 16 and 16 opening into the intake chamber 15, where the influence of wind pressure is extremely small.
Therefore, combustion in the burners 19, 19 proceeds under the same conditions as when there is no wind even when there is wind, and there is no fear of poor combustion.

Next, in the case of the illustrated embodiment, since most of the exhaust pipe 12 is exposed to the outside air, the heat emitted from the exhaust pipe is not stored inside the instrument body 1, and the heat is transferred to the valve device 10, etc. This skillfully prevents adverse effects on the environment and contributes to improving the durability and other performance of these control parts, which are often inconvenient due to being exposed to high-temperature conditions.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, and Fig. 2 is a cross-sectional view of the main parts thereof.
...Side wall, 15...Intake chamber, 16.16...
...Intake hole.

Claims (1)

[Scope of utility model registration request] In a type of gas appliance that is installed near the wall of a house and does not have an exhaust hole on the upper surface of the exhaust top, an intake chamber that is open only to the side wall is provided on the side wall 6 of the appliance body 1 facing the wall. An intake gap communicating with the combustion chamber is formed on the outside of the peripheral wall of the intake chamber, and intake holes 16 are formed only in the peripheral wall of the intake chamber.
Outdoor installation type gas appliance with 16 openings.