JPS605263Y2 - Ignition system for gas appliances - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ignition device for a gas appliance that ignites a piezoelectric device by providing a spark plug in a pilot burner.

A pilot burner has a main flame hole and an auxiliary flame hole, and in order to improve ignition performance, the auxiliary flame hole is ignited with a spark plug, and the main flame hole is ignited. Since there is less oxidation and better contact with secondary air, combustibility increases and ignition performance improves.

However, in conventional pilot burners of this type, the flame in the auxiliary flame hole extends in a direction different from the direction of flame ejection from the main flame hole. When used in a device with a flame retardant, there is an inconvenience that the flame from the subflame hole extends in an unnecessary direction and hits the top plate.

This invention eliminates the above disadvantage by installing a guide plate that guides the flame to the auxiliary flame hole provided in the pilot burner body.
This will be explained below according to the drawings.

Fig. 1 shows the ignition device of the present invention attached to a table stove.The top plate 2 of the table stove 1 is provided with an opening 3 through which the pilot burner flame comes out, and an ignition device with a pilot burner body 4 and a spark plug 5 is installed in the top plate 2 of the table stove 1. Provide equipment.

The pilot burner main body 4 is pipe-shaped and has a main flame hole 6 at the tip, and a sub-flame hole 7 is provided on the side facing from this.
A guide plate 8 is provided to allow the flame emitted from this to intersect with the flame emitted from the main flame hole 6.

The pilot burner main body 4 and the spark plug 5 are fixed by a mounting plate 9, and in the figure, a guide plate 8 is integrally formed with this.

The gas ejected from the pilot nozzle 10 is sent to the primary air port 1.
Air is sucked in from 1 to form a mixed gas, which is ejected from the auxiliary flame hole 7 and the main flame hole 6.

The mixed gas ejected from the auxiliary flame hole 7 is guided by a guide plate 8 in the direction in which the main flame hole 6 is located, and is ignited by emitting electric sparks by a spark plug 5 with the tip of the pilot burner 4 as a ground electrode.

The flame of the secondary flame hole 7 hits the vicinity of the main flame hole 6 and ignites, and the flame of the secondary flame hole 7
The flame and the flame of the main flame hole 6 become one, exit from the opening 3 provided in the top plate 2, and ignite the main burner 12.

In the conventional pilot burner shown in FIG. 3, the flame extends toward the open side of the auxiliary flame hole 7 and is not in the same direction as the flame in the main flame hole 6.

In the conventional pilot burner shown in FIG. 4, the flame from the auxiliary flame hole 7 hits the top plate 2, causing a problem.

As described above, according to the present invention, in a pilot burner whose tip opening is the main flame hole, and which is provided with a sub-flame hole in a part of the main body and ignited to improve ignition performance, the flame of the sub-flame hole is A guide plate is installed so that it intersects with the flame in the main flame hole.
For reasons such as the top plate of a table stove, the opening from which the pilot flame comes out is set to the minimum size for reasons that are required from an external perspective, and as an ignition device for this purpose, the flame from the secondary flame hole does not hit unnecessary parts. A pilot flame of sufficient length to ignite the main burner 12 located further away can be obtained.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an embodiment in which the ignition device of the present invention is installed in a table condenser, Fig. 2 is a perspective view showing the ignition device of the present invention, and Figs. 3 and 4 are auxiliary flame holes 7. FIG. 2 is an explanatory diagram showing an example in which a conventional ignition device having a ignition device is provided on a table stove. 4...Pilot burner body, 5...
Spark plug, 6...Main flame hole, 7...Sub-flame hole, tail...Guide plate.

Claims (1)

[Scope of utility model registration request] In a pilot burner with an opening at the tip as the main flame hole, a sub-flame hole is provided in a part of the main body, and a spark plug is provided to ignite the sub-flame hole, and the direction of the flame ejected from the sub-flame hole is the main flame. An ignition device for a gas appliance, characterized by being provided with a guide plate that guides the flame in a direction intersecting with the flame ejected from the hole.