JPH0213877Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a bath kettle with a water heater, that is, a heat exchanger for water boiling and a heat exchanger for bath are installed side by side in the body, and each heat exchanger is equipped with a separate combustion device. This relates to a bath kettle with a water heater.

Recently, there has been a strong demand for miniaturization of this type of equipment, and miniaturization in width and depth has become a particularly important issue.

As the above-mentioned heat exchanger side-by-side type equipment, the one disclosed in Japanese Utility Model Application No. 54-70644 has already been proposed.
In this case, in addition to the space occupied by each heat exchanger, additional space is added for the water circuit, gas circuit valve equipment, etc., and even if there is a large empty space above the heat exchanger. Regardless, there is extra space for control components such as the valve device. This is because if the control components are directly disposed above the heat exchanger, their thermal protection will be insufficient.

The present invention incorporates a bath heat exchanger and a water heater heat exchanger in a rectangular parallelepiped-shaped container, and exhausts the exhaust from the two heat exchangers from one exhaust pipe through an exhaust collection box. It is an object of the present invention to provide a bath kettle with a water heater of the type that can be miniaturized, while also sufficiently protecting control parts such as a valve device.

The technical means of the present invention taken to solve the above problems are as follows: Each heat exchanger is installed in parallel at the bottom of the container,
The exhaust stack connected to the exhaust collection box is located biased toward the bath heat exchanger side, and the top surface of the exhaust collection box on the bath heat exchanger side is an inclined surface rising toward the exhaust stack, The space surrounded by the inclined surface and the body of the exhaust stack in the container body is defined as a control parts group housing part, and the lower area of this control parts group housing part and the side area on the exhaust pipe side are the front and rear surfaces of the body. A gap is formed between the partition plate and the upper surface of the exhaust collection box and the exhaust pipe, and the upper end of the gap communicates with the outside of the vessel. It is true.

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

First, since the control parts group is arranged centrally in the empty space above the heat exchanger, the depth and width dimensions of the appliance approximately match the dimensions of the heat exchanger housing plane, and these dimensions are the minimum. can be kept to a minimum.

Next, when looking at combustion, the combustion exhaust gas that has passed through each heat exchanger is discharged from the exhaust collection box through the exhaust pipe to the outside of the appliance, but the water heater heat exchanger is used for the other bath heat exchanger. The exhaust temperature is lower than that of
The ambient temperature around and above the heat exchanger is also low. This is because the water supplied to the water boiling heat exchanger is always at room temperature, and the heat exchanger that heats it is, in other words, cooled by water.
This is because the heat exchange efficiency of this heat exchange is higher than that of the other bath heat exchanger, and the exhaust temperature is also lower.

The exhaust gas from the water heating heat exchanger is combined with the exhaust gas from the bath heat exchanger in the exhaust collection box, and is then discharged from the exhaust pipe.

The exhaust gas flowing through the exhaust collection box and exhaust stack heats the wall surfaces of each of these flow paths to some extent, but the radiant heat from this is blocked by the partition plate, suppressing the temperature rise of the control parts group due to the radiant heat. Since there is a gap between the exhaust path wall or side wall and the partition plate, the temperature rise in the control parts group due to conduction is also suppressed.

Furthermore, since the upper end of the gap between the partition plate and the exhaust collection box and exhaust box communicates with the outside of the vessel, the heated air in this gap rises along the wall on the exhaust path side. It is discharged to the outside. Therefore, the heated air generated in this gap is discharged to the outside without being retained.

Since the present invention has the above configuration, it has the following unique effects.

Since the planar dimension of the device substantially matches the planar dimension occupied by these heat exchangers in the heat exchanger arrangement state, the planar dimension of the device can be minimized and the device can be made smaller.

The temperature rise of the control parts located above the heat exchanger can be suppressed by specifying their mounting positions and by the air insulation effect between the partition plates and the high temperature parts. Therefore, thermal damage to the control components can be prevented.

In particular, in the gap between the partition plate and the exhaust path side, hot air is discharged to the outside from the upper end and cold air flows in from below, which further improves the adiabatic air cooling effect of the control parts housing section. .

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 bath pot with a gas water heater, in which a bath heat exchanger 1 and a water boiling heat exchanger 2 are disposed within a vessel body 3 at a predetermined minimum interval. The main burners 11 and 21 are arranged in parallel, and the main burners 11 and 21 are located below them.
A pilot burner device 4 is provided between these gas burners, and a gas supply section to the gas burner and the pilot burner device 4 is provided on the inner surface of the front side of the vessel body 3.

In this embodiment, the exhaust pipe 5 is connected to the bath heat exchanger 1.
This exhaust pipe 5 and the upper part of each heat exchanger 1, 2 are connected by an exhaust collection box 51,
In particular, the upper wall 52 of the exhaust collecting box connecting the upper end of the water heating heat exchanger 2 and the exhaust pipe 5 is sloped smoothly.

The partition plate 6 passes from the side wall 31 on the water heating heat exchanger 2 side, passes above the upper wall 52, rises along the side of the exhaust pipe 5, and reaches the upper wall 32 of the vessel body 3. A bent plate is installed across the front wall 33 and rear wall 34 of the vessel, and furthermore, a predetermined space for air insulation is provided between the partition plate 6 and the exhaust collection box 51 and the exhaust stack 5. A gap 7 is provided. Note that, as shown by the broken line in FIG. 1, this gap 7 is open to the top surface of the vessel along the exhaust pipe and communicates with a gap on the outer periphery of the upper end of the exhaust pipe that projects from the top surface of the vessel.

The partition plate 6 and the side wall 31 and upper wall 32 of the vessel body 3,
A valve device for the water circuit, a main valve device for the gas circuit, and a group of control parts 8 such as a governor are installed in the empty chamber 61 formed by the front wall 33 and the rear wall 34.
are concentratedly disposed, and from these there is a gap 9 on the front side.
A water supply pipe 22 to the water heating heat exchanger 1 through the
Further, gas piping is provided to the gas burners 11 and 21 and the pilot burner device 4.

In this embodiment, inside the exhaust collection box 51,
Exhaust passage on the water heating heat exchanger 2 side and bath heat exchanger 1
A partition plate 53 is provided to separate the exhaust passage from the side exhaust passage, and the upper end of the partition plate 53 faces approximately the center of the lower part of the exhaust pipe 5.

As a result, the exhaust gas from each heat exchanger is smoothly guided into the exhaust stack 5, and good combustion can be achieved in the main burner below each heat exchanger.

Although the explanation has been given above using a gas combustor as an example, it goes without saying that the present invention can also be used in an oil combustor.

[Brief explanation of drawings]

Figure 1 is a front view of the present invention in its open state;
The figure is a side sectional view of the same, and in the figure, 1... Heat exchanger for bath, 2... Heat exchanger for boiling water, 3... Body, 5... Exhaust stack, 6... Partition plate,
7... Gap, 8... Control parts group, 51... Exhaust manifold.

Claims (1)

[Scope of utility model registration request] A water boiler of the type in which a bath heat exchanger and a water boiler heat exchanger are built into a rectangular parallelepiped-shaped container, and the exhaust from the two heat exchangers is discharged from one exhaust stack via an exhaust collection box. In a bathtub with a built-in bathtub, each heat exchanger is arranged in parallel at the bottom of the body, and the exhaust pipe connected to the exhaust collection box is positioned biased toward the bath heat exchanger side, and the bath in the exhaust collection box is The top surface on the heat exchanger side is an inclined surface rising toward the exhaust stack, and the space surrounded by the inclined surface and the body of the exhaust pipe in the body is a control parts group housing part, and this control parts group is The lower area of the storage part and the side area on the exhaust pipe side are separated from the exhaust path side by a partition plate installed between the front and rear surfaces of the container, and the partition plate and the upper surface of the exhaust collection box and the exhaust pipe are separated. A bathtub with a water heater, in which a gap is formed between the two, and the gap communicates with the outside of the vessel at its upper end.