JPH0424304Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is applicable to pilot burners, constant flame burners, flame rods, etc. installed in combustors such as gas water heaters, etc.
This invention relates to a mounting device for thermocouples and other ignition devices.

(Prior Art) As a conventional device of this kind, a plurality of burner bodies are arranged side by side on a common manifold and are directly fixed to the flame opening of a main burner integrated with the burner body,
Alternatively, it is known that the ignition device is fixed to the combustor main body via a fitting, or the ignition device is fixed via a fitting to a gas control unit incorporating a gas tank, water governor, etc.

(Problems to be solved by the invention) However, according to the above-mentioned conventional method, there is no member that determines the positional relationship between the ignition device and the main burner, so the ignition device does not cause thermal distortion of the burner body or damage to the combustor body, etc. Assembling errors during fixing may cause the burner to deviate from a predetermined position relative to the main burner, resulting in an inconvenience in which the original function may be impaired.

(Means for Solving the Problems) The present invention aims to provide an apparatus that eliminates the above-mentioned disadvantages, and in which a plurality of burner bodies are arranged longitudinally on a common pipe-shaped manifold. The igniter is positioned so that the igniter faces the flame hole of the integrated main burner, and the igniter is positioned in the manifold by the through hole being engaged with a protrusion at an end on the axis of the manifold. It is characterized by being fixed to a fixed bracket.

(Function) The present invention has the above-mentioned configuration. According to this, the bracket is positioned on the manifold by fitting its through hole into the protrusion at the end on the axial line of the manifold, which is a component of the main burner. The ignition device fixed to this bracket is always set at a predetermined position relative to the main burner, so that it can always perform its original function reliably.

(Example) Next, an example of the present invention will be described based on the drawings.

1 and 2 show an embodiment in which the present invention is applied to a gas water heater, in which 1 is a main body of the gas water heater, 2 is a heat exchanger housed in the main body 1, The heat exchanger 2 is provided with an endothermic tube 3 having a large number of fins in its upper part, and its lower part forms a heating chamber of a main burner 4.

As shown in FIGS. 3 to 5, the main burner 4 is an integrated structure in which a plurality of burner bodies 5 are arranged in parallel in the longitudinal direction on a common pipe-shaped manifold 6. Above the manifold 6 fixed to the main body 1 via a gas control unit 7 incorporating a gas tank, water governor, etc.,
A plurality of burner bodies 5 are connected and supported by a support frame 8, and a positioning through hole 9 formed in a front plate 8a of the support frame 8 is fitted into a projection 10 provided at an end on the axis of the manifold 6. A plurality of burner bodies 5 and a manifold 6 are integrally constructed.

An ignition device 11 faces the flame port of the main burner 4, and specifically, the ignition device 11 includes an ignition electrode 12, a pilot burner 13, and a constant flame burner 14 for igniting the main burner 4. and,
It is composed of a flame rod 15 that is energized by the combustion flame of the main burner 4, and a thermocouple 16 that is heated by the ignition of the main burner 4 and generates an electromotive force. As shown in FIGS. 6 to 10, it is fixed to a bracket 17 through each mounting plate, and the bracket 17 has a central through hole 18 connected to the protrusion 1 of the manifold 6.
0 and positioned on the manifold 6, and fixed to the front plate 8a of the support frame 8 with screws through the mounting holes 19, 19 on both sides of the through hole 18.

When doing so, the bracket 17 is
8 is fitted into the protrusion 10 of the manifold 6 and positioned on the manifold 6, and the manifold 6 is integrated with the plurality of burner bodies 5 via the support frame 8, so that the brackets can be attached via each mounting plate. The ignition device 11 fixed at 17 is always faced to a predetermined position of the flame port of the main burner 4, and always performs its original function reliably.

The current of the flame rod 15 and the electromotive force of the thermocouple 16 described above are sent to a combustion control device (not shown) built in the gas water heater main body 1, whereby various controls are performed.

In FIG. 1, 20 is a water supply port, 21 is a gas supply port, and 22 is a hot water outlet. In FIG. 2, reference numeral 23 indicates a temperature control knob, 24 indicates an ignition operator, and 25 and 26 indicate fittings for mounting on a wall surface 27.

(Effect of the invention) As described above, according to the invention, an ignition device such as an ignition electrode or a flame rod is fixed to a bracket positioned on the manifold with a through hole fitted into a protrusion at an end on the axis of the manifold. As a result, the igniter can always be set at a predetermined position relative to the main burner, and it always performs its original function, making the igniter more reliable than the conventional type, in which the setting position cannot be determined accurately. performance is improved.

[Brief explanation of the drawing]

Fig. 1 is a cutaway front view showing an example of the implementation of the present invention applied to a gas water heater, Fig. 2 is a cutaway side view thereof, and Fig. 3 shows only the main burner portion of Fig. 1. Figure 4 is a front view showing only the manifold in Figure 1, Figure 5 is a side view of Figure 4,
Fig. 6 is a front view showing only the ignition device and bracket shown in Fig. 1, Fig. 7 is a plan view of Fig. 6, Fig. 8 is a front view showing only the bracket shown in Fig. 6, and Fig. 9 is a front view showing only the bracket shown in Fig. 6. FIG. 6 is a front view showing the constant flame burner and its mounting plate, and FIG. 10 is a front view showing the pilot burner and the ignition electrode mounting plate. 4... Main burner, 5... Burner body, 6...
Manifold, 10...Protrusion (for positioning), 11
...Ignition device, 17...Bracket, 18...Through hole.

Claims (1)

[Scope of utility model registration request] A plurality of burner bodies are arranged longitudinally side by side on a common pipe-shaped manifold so that the ignition device faces the flame hole of the integrated main burner. A mounting device for an ignition device, characterized in that a hole is engaged with a protrusion at an axial end of the manifold and fixed to a bracket positioned on the manifold.