JPH0232985Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a gas nozzle device used in a combustion device for a gas instantaneous water heater.

(Prior art and its problems) For example, in a combustion device for a gas instantaneous water heater, in order to widen the control range of the combustion amount, a plurality of gas burners are divided into two groups to control the combustion amount. There is. That is, in such a conventional combustion apparatus, as shown in FIG. 6, a plurality of gas burners b ₁ , b ₂ ,
b ₃ ,... are divided into groups A and B, and are arranged together for each group A and B, and gas is supplied to the gas burners belonging to the groups A and B by opening and closing valves c ₁ and c ₂ . The combustion amount can be varied over a wide range by proportional control. However, if a plurality of gas burners are arranged in groups A and B in this way, when only one of the groups A and B is burned, the flames will be uneven, and the heat exchanger d
There are problems such as reduced durability due to localized heating concentration and instability of flame transfer when transitioning from the combustion state of only one group to the combustion state of both groups.

In order to solve this problem, the inventor of the present invention
In the specification and drawings attached to the application for utility model registration (2) submitted on March 2, 1962, a configuration was proposed in which gas burners belonging to different groups were arranged alternately.
(See FIG. 1) An object of the present invention is to provide a gas burner device that rationally embodies such a configuration.

In addition, in FIG. 1 and FIG. 6, the symbol e is a gas nozzle device, f is a nozzle, and g is a solenoid valve.
Fig. 6 shows the configuration of the gas nozzle device e, in which box bodies h ₁ and h ₂ are provided for each of husband and wife groups A and B, and nozzles f are configured in these boxes h ₁ and h ₂ . .

(Means for Solving the Problems) The configuration of the present invention will be explained based on FIGS. 1 to 5 corresponding to the embodiment. Multiple nozzles 3,3
a, 3b, . Furthermore, supply ports 6a and 6b for supplying gas to the spaces 4a and 4b are provided in the box body 2.
It is placed in the appropriate place.

In this configuration, the method of partitioning the nozzles 3 does not necessarily have to be partitioned into individual nozzles 3, but corresponds to the method of arranging the plurality of gas burners 8, 8a, 8b, . . . consisting of two groups 7a, 7b. do,
Gas burners 8 belonging to each group 7a, 7b,
Nozzles 3, 3 that supply gas to 8a, 8b, ...
a, 3b, ... are spaces 4, 4a, 4b inside the box body 2
All you have to do is partition it so that it communicates with either one of them.

That is, for example, the nozzles 3a, 3c, 3e, 3g, which supply gas to the gas burners belonging to the group 7a,
3i, 3j communicate with space 4a, and other nozzles 3b, 3d, 3f, 3h are partitioned so as to communicate with space 4b.

In addition, the supply ports 6a and 6b each have a space 4
If gas can be supplied to the spaces 4a, 4b from the supply ports 6a, 6b by communicating with the spaces 4a, 4b, they may be provided at appropriate locations on the box body 2.

(Function) To explain the function of the present invention together with an embodiment, in the embodiment of the present invention, the nozzles 3, 3a, 3
b,... are 10, among which 3a, 3c, 3
The six nozzles e, 3g, 3i, and 3j are in group 7a.
Gas burners 8a, 8c, 8e, 8g, 8 belonging to
The other nozzles 3b, 3d, 3f, 3h are connected to gas burners 8e, 8d, 8f, 8h belonging to group 7b to form group 10a.
constitute b.

The wave-shaped partition 5 provided inside the box body 2
The inside is divided into two sets of connected spaces 4a and 4b, and the nozzles 3 belonging to the group 10a are made to communicate only to the space 4a, and the nozzles 3 belonging to the group 10b are made to communicate only to the space 4b. are arranged in a row on one side a of the box body 2, and gas burners 8, 8a, 8b, . . .
This is to facilitate connection with.

The nozzles 3 belonging to the group 10a communicate with the space 4a in the box body 2, and the gas that flows into the space 4a from the supply port 6a flows out only from the nozzles 3 belonging to the group 10a, and is transferred to the gas burner belonging to the group 7a. Similarly, the gas flowing into the space 4b from the supply port 6b flows out only from the nozzles 3 belonging to the group 10b, and is configured to be able to supply gas to the gas burners belonging to the group 7b.

Furthermore, the gas supply system 1 to the supply ports 6a and 6b
1a and 11b are provided with capacity valves 9a and 9b, respectively, and the gas flow rate to the gas burner 8 is adjusted by opening and closing the capacity valves 9a and 9b.

With the above configuration, the capacity valves 9a, 9
By controlling the opening/closing state of b, the entire combustion state where the entire gas burner 8 burns, or the group 7
It is possible to freely change the state to a partial combustion state in which only the gas burners 8 belonging to either group a or 7b burn.

Therefore, in the gas nozzle device 1 of the present invention, the gas burners 8 are divided into two groups 7a and 7b, and the gas burners 8 belonging to different groups 7 are arranged alternately to prevent unevenness of the flame in the partially combustion state and In the combustion device 12 that improves poor flame transfer during the transition process from a partial combustion state to a full combustion state, it can be easily connected to the gas burner 7 without installing complicated piping, and
Fuel gas can be supplied.

(Effects of the invention) As described above, the gas nozzle device of the present invention can be used in a combustion device for a gas instantaneous water heater, etc., which divides the gas burners into two groups and controls the combustion amount, by alternating the gas burners belonging to different groups. Combustion equipment that improves the unbalanced flame in a partial combustion state and the poor flame transfer during the transition process from a partial combustion state to a full combustion state can easily be used with a gas burner without installing piping. Because it is compact and has a simple structure, it is easy to handle.
Moreover, it has the effect of being excellent in appearance.

[Brief explanation of the drawing]

1 to 5 correspond to embodiments of the present invention. FIG. 1 is a plan view schematically showing the configuration of a combustion device to which the gas nozzle device of the present invention is applied, and FIG. Schematic perspective view of the gas nozzle device, 3rd
The figure is a schematic cross-sectional view taken along line A-A in Figure 2, Figure 4 is a schematic plan view of a combustion device to which the gas nozzle device of the present invention is applied, and Figure 5 is a side view of Figure 4. FIG. 6 is a schematic plan view of a conventional combustion device. Code 1...Gas nozzle device, 2...Box, 3,
3a, 3b,... Nozzle, 4, 4a, 4b...
Space, 5... Partition, 6, 6a, 6b... Supply port, 7, 7a, 7b... (Gas burner) group, 8...
8a, 8b, ...... gas burner, 9, 9a, 9b
...Capacity valve, 10, 10a, 10b... (nozzle) group, 11, 11a, 11b... Gas supply system, 12... Combustion device, 13... Solenoid valve, 14...
…Heat exchanger.

Claims (1)

[Scope of utility model registration request] A plurality of nozzles are arranged in a line on one side of the box body, and a wave-shaped partition is provided inside the box body to partition adjacent nozzles and divide the inside of the box body into two sets of continuous spaces. A gas nozzle device characterized in that supply ports for supplying gas to each space are provided at appropriate positions in the box body.