JPS6230680Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to the improvement of combustion devices such as bathtubs, and the installation position of the burner of the combustion device is changed depending on the usage condition, making it convenient for installation in a small space. be.

In conventional devices of this type, there were some that had multiple burner mounting holes so that the burner mounting position could be changed and the burner could be handled in a small space.
In these devices, the mounting ports were arranged to face each other due to problems in processing the mounting ports. For this reason, even if an unused mounting port is covered with a cover plate, it is exposed to high-temperature combustion flames directly and is easily deformed and damaged, and as a result, the quality is sufficient to withstand deformation. There were some drawbacks, such as making it expensive. Therefore, this invention has the advantage that by preventing the mounting ports from facing each other, the lid plate of the direct mounting port can be made into a simple and inexpensive lid plate without being exposed to flame. .

In the following, an example will be described. Reference numeral 1 is a heat exchanger, and the inner and outer shells 2 and 3 are spaced apart from each other by 4, and both edges 5 and 6 are joined to form a water chamber 7. The inner space of the inner shell 2 is used as a combustion chamber 8.
Reference numeral 9 denotes a canopy fitted to the top of the heat exchanger 1, and has an exhaust hole 10 formed therein. 11 is Batsuful plate,
12 is a furnace bottom plate. Reference numeral 13 denotes a communication port of the heat exchanger 1, which is used as a heat exchanger for a bath, and is connected to a bathtub 14 through two circulation pipes 13a and 13b. Reference numeral 15 denotes mounting ports drilled in the peripheral wall of the heat exchanger 1, which communicate with the combustion chamber 8. The mounting ports 15 are provided at a plurality of suitable locations on the peripheral wall, and the mounting ports do not face each other. They are each formed to be offset from their opposing positions. Reference numeral 16 denotes a burner which is arbitrarily selected and provided in the mounting port 15 depending on the usage condition, etc. Although not shown, a fuel pump, igniter, etc. are provided, and well-known ones are used. A cover plate 17 covers the mounting port 15 and removably covers the mounting port 15 when the mounting port 15 is not in use. Further, as shown in FIG. 2 as another example, the heat exchanger 1 and the combustion chamber 8 are formed separately and communicated with each other, and a mounting hole 15 is bored in the peripheral wall of the combustion chamber 8. .

This device is constructed as described above, and includes mounting holes for mounting the burner facing the combustion chamber on the peripheral wall of the combustion chamber that communicates with the heat exchanger, and the mounting ports are offset so that they do not face each other. Since the flames of the burner 16 are blown onto the wall surface of the combustion chamber 8 during combustion, the direct flame does not reach the cover plate 17 of the mounting port 15, so that the cover plate 17 is not deformed due to heat. This is advantageous in that damage to the cover plate 17 can be suppressed and the structure, material, etc. of the cover plate 17 can be simplified. Furthermore, by heating the wall surface of the combustion chamber 8 itself, heat transfer is made more effective and efficiency is also improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of this invention, FIG. 2 is a sectional view showing another embodiment, and FIG. 3 is a sectional view taken along line AA in FIG. 1 is a heat exchanger, 8 is a combustion chamber, 15 is a mounting port, 1
6 is burner.

Claims (1)

[Scope of utility model registration request] Mounting ports for attaching burners facing into the combustion chamber are provided on the peripheral wall of the combustion chamber at multiple locations, the number of which is greater than the number of burners, and cover plates are removably attached to the mounting ports where burners are not attached. A combustion device characterized by being formed so that they do not face each other.