JPH06300261A - Ignition/firing device for gas lamp - Google Patents

Abstract

PURPOSE:To provide an ignition /firing device for a gas lamp, which solves problems arising from a fact that the combustion gas blow-off nozzle thereof is made of a metal, and which is capable of employing a flame rod prominent in responding and detecting performance as a safety device and provided with a system wherein respective tip ends of a spark rod and the flame rod do not penetrate a mantle. CONSTITUTION:An ignition device for initiating a gas lamp is provided with one or more than two pieces of downward mantles 4 for burning combustion gas in the inside cavity thereof, a combustion gas supplying means 8, supplying combustion gas or fuel gas and air into the inside cavity of the mantles 4, an ignition/firing means 5 for igniting the combustion gas and a safety device for preventing the discharging of the combustion gas. An auxiliary combustion burner 20, equipped with the means 5 and the safety device 6, is provided near the mantles 4 as the igniting/firing means for the combustion gas.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas lamp ignition / ignition apparatus, and more particularly to a downlight type burner ignition / ignition apparatus for a gas lamp mantle in which a gas lamp mantle is set downward.

[0002]

2. Description of the Related Art Gas lamps are made of silk called mantle
Lattice and other fibers are impregnated with a chemical agent, and a cap made of lattice cloth is exposed to a gas flame to cause a chemical reaction to generate incandescence.

At present, this gas lamp has an upward type (upright type) and a downward type (downlight type) depending on the direction of the mantle.
In general, one to three mantles are used to form one gas lamp.

FIG. 3 shows a conventional downlight type gas lamp ignition /
The schematic perspective view of an ignition device is shown. FIG. 4 is a partial sectional view of FIG. As shown in FIGS. 3 and 4, a conventional downlight type gas lamp has, for example, a 3-mantle burner 1 made of stainless steel, a manifold 2 having a gas flow passage therein, and a combustion gas blowout hole nozzle 3. The mantle 4 is attached downward to each of the three blowing nozzles 3. Each mantle 4 is provided with a spark rod 5 as an ignition / ignition device penetrating its tip and a frame rod 6 as a safety device for preventing extinction. FIG. 3 shows only one set of the spark rod 5 and the frame rod 6 for one mantle 4. Fuel gas is fed into the hollow manifold 2 through the gas nozzle 10 and mixed with the air from the air holes 9 to form the combustion gas. Reference numeral 8 is a combustion gas supply pipe. Manifold 2
The rod protruding upward from the center of the upper part is a stainless steel burner fixing rod 12. The pipe having the gas nozzle 10 is the gas valve 13a and the governor 1 shown in the gas lamp piping diagram shown in FIG.
4, it is connected to a gas lamp pipe having a gas pressure hole 13b.
The gas valve 13a is a solenoid valve that can be opened and closed freely, the governor 14 is a gas pressure automatic regulator, and the gas pressure hole 13b is a gas pressure measurement hole.

[0005]

A conventional downlight type gas lamp of the type shown in FIGS. 3 and 4 has a frame rod type as a safety device. , The current path is closed, and flame extinction is detected by opening and closing the current path depending on the presence or absence of gas flame. Therefore, in order to flow the electric current to the nozzle (blowout) side, it is a condition that the blowout hole nozzle 3 of the base is made of metal.
Since the temperature rises to about 1000 to 1200 ° C. due to the flame, it is oxidized and has an insulating property, and the strength of the nozzle 3 is deteriorated, causing a problem of metal destruction. Since the metal destruction causes a plurality of oxide pieces 11 shown in FIG. 4 to fall and deposit on the mantle bottom corresponding to the nozzle, when the oxide pieces 11 are large in quantity, the weight cannot be endured and the mantle destruction occurs. The problem also occurred.

In order to solve the above-mentioned problem of oxide piece deposition due to the fact that the material of the combustion gas blowout hole nozzle (tip) 3 is metal, as shown in FIG.
It is possible to replace the material of the ceramic with ceramic (insulator), but then the current through the flame of the gas mentioned above will not flow through the ceramic, so it will not be possible to detect the extinction of the flame, which is an excellent safety device. A flame rod type (because it is a flame current sensing type, it has high sensitivity and can quickly detect the presence or absence of a flame) cannot be used.

FIG. 7 shows a conventional apparatus in which both the manifold 2 and the combustion gas outlet nozzle 3 are made of iron.
When the tip of the spark rod 5 is arranged near the back surface of the manifold 2, the spark rod 5 is ignited on the back surface of the manifold 2, and the spark 5a ignites and ignites the combustion gas sent into the mantle. . On the other hand, the tip of the frame rod 6 is inserted into the mantle 4 as in the case of the device shown in FIG. In the figure, DET indicates a current detector. In this example as well, the problem of mantle destruction mentioned above occurred.

In view of the above-mentioned drawbacks, the present invention solves the problem that the combustion gas blowing nozzle (nozzle tip) for mounting the mantle is made of metal, and uses a frame rod excellent in response sensing performance as a safety device. An object of the present invention is to provide a gas lamp ignition / ignition device capable of extending the life of the mantle without penetrating the respective ends of the spark rod and the frame rod in the mantle.

[0009]

According to the present invention, one or more downward mantles for burning the combustion gas in the inner cavity and the combustion gas to the inner cavity of the mantle are provided. Gas supply means for supplying fuel gas and air as a fuel gas, ignition / ignition means for igniting / igniting the combustion gas, and a safety device for preventing discharge of the combustion gas In the ignition / ignition device, an auxiliary combustion burner including an ignition / ignition device and the safety device is provided near the mantle as an ignition / ignition device for igniting / igniting the combustion gas. Solved by gas light burner ignition / ignition device.

[0010]

According to the present invention, the auxiliary combustion burner 20 is additionally arranged at a substantially equal distance from each mantle 4 of the gas lamp, and the spark rod 5 as an ignition / ignition device is arranged in the vicinity of the auxiliary combustion burner 20. Flame 7 ignited and ignited using
By this, the gas in each mantle 4 is transferred to the ignition and ignited. Also, the flame rod, which has excellent response sensing characteristics as a safety device, can be checked by the flame 7 outside the mantle. Therefore, it is not necessary to equip the mantle 4 with the spark rod 5 and the tip of the frame rod 6 so as to penetrate the mantle 4. It is possible to prevent destruction.

[0011]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a schematic perspective view of an embodiment of a gas lamp ignition / ignition device according to the present invention. In the drawings of the present invention after FIG. 1, the same elements as those in the conventional drawing are designated by the same reference numerals.

As shown in FIG. 1, in the gas lamp ignition / ignition device according to the present invention, an auxiliary combustion burner 20 as a sub-pilot burner is added at a position equidistant from the mantle of a conventional mantle type burner having a manifold 2. The combustion gas supply pipe 8, the hollow manifold 2 and the auxiliary combustion burner (hereinafter referred to as an auxiliary burner) 20 through the auxiliary combustion gas blowing hole 20a to ignite the gas with the spark rod 5. Ignite. The frame rod 6 is also attached to the auxiliary burner 20 so that the tip thereof enters the flame 7.

FIG. 2 is a view for explaining the positions of the mantle and the auxiliary burner of the mantle type burner shown in FIG. 1, and the distance between the auxiliary burner 20 and the mantle 4 is approximately equal and is about 10 mm. .

In this embodiment, the combustion gas blowing hole nozzle 3 is used.
In order to prevent oxidative consumption of the nozzle tip portion, the nozzle tip 3a made of ceramic fitted below the iron-made combustion gas blowing nozzle 3 is used. To reduce costs, the main body of the mantle burner 1 has been changed from stainless steel to cast aluminum. Auxiliary burner 20 equipped with spark rod 5 and frame rod 6 which is used without inserting into mantle 4 to ensure ignition / ignition and transfer of fire and to improve mantle durability is added to the above-mentioned predetermined position. It is arranged. An auxiliary combustion gas blowout hole 20a for blowing out gas is provided at the tip of the auxiliary burner 20 so as to be directed in a slit shape toward each mantle 4.
The flame 7 (FIG. 1) ignited by the spark rod 5 also ignites the gas from the combustion gas blowing nozzle 3 on the mantle 4 side so that all three mantles 4 are burned by the flame 7 almost at the same time. There is. FIG. 1 shows a state in which the flame 7 is emitted from the auxiliary combustion gas blowing holes 20a toward the left, right, and rear three mantles.

A method of igniting and igniting a gas lamp will be described below using this embodiment.

The lower portion (FIG. 5) of the pole described in the prior art is similarly attached to the combustion gas supply pipe (pole) 8 of the ignition / ignition device shown in FIG. That is, the gas passes through the gas valve 13a, which is an electromagnetic valve that automatically opens and closes, the gas pressure is adjusted by the governor 14 that is an automatic gas pressure regulator, and the gas whose gas pressure is adjusted passes through the gas pressure hole 13b. Into the combustion gas supply pipe 8 of FIG.
Is sent together with the air supplied from the above, enters the manifold 2, further enters each mantle 4, and the combustion gas blowing nozzle 3
And, it is blown out from the auxiliary combustion gas blowing hole 20a (FIG. 2) of the auxiliary burner 20.

The gas blown from the auxiliary combustion gas blowing hole 20a is ignited by using the spark rod 5 to form a flame 7 in the vicinity of the auxiliary burner 20. This flame 7 enters the mantle 4 over the lattice cloth, ignites and ignites the combustion gas inside the mantle, and lights the gas lamp.

In this embodiment, the auxiliary burner 20 near the mantle forms a pilot fire (flame 7) once, and the pilot fire ignites and ignites the gas in each mantle 4. A frame rod 6 is provided near the auxiliary burner 20 to prevent the frame from disappearing. The auxiliary combustion gas blowout holes 20a are formed in a slit shape that is opened horizontally on the side surface of the auxiliary burner 16, and are arranged so as to be directed toward the respective mantles 4.

In this embodiment, since ignition, ignition, and safety confirmation can be performed without arranging the ends of the spark rod, the frame rod, etc. in the mantle 4, the combustion gas blowing nozzle 3, especially the nozzle tip 3a, is installed. It is possible to use a fire resistant insulating material such as ceramics.

[0020]

As described above, according to the present invention, the auxiliary combustion burner (subpilot) for ignition and flame detection (detection) is installed in the vicinity of the gas lamp mantle, so that the subpilot burner can be operated. Since it has a fire transfer function that does not give an impact to each mantle, it is possible to eliminate the conventional penetration arrangement of the ignition / ignition device or the safety device into the mantle, so that the mantle is not damaged, or when ignition / ignition occurs. , Mantle destruction due to wind pressure when extinguishing is eliminated. Since the auxiliary combustion burner can be made of metal, an excellent frame rod can be used as a safety device, and the ignition / ignition performance can be improved. As a result, the life and durability of the gas lamp mantle can be improved.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of an embodiment of a downlight type gas lamp ignition / ignition device according to the present invention.

FIG. 2 is an explanatory view of the arrangement positions of the mantle and the auxiliary burner of the mantle type burner shown in FIG.

FIG. 3 is a perspective view of a conventional downlight type gas lamp ignition / ignition device.

FIG. 4 is a partial cross-sectional view of FIG.

FIG. 5 is a gas lamp piping diagram.

FIG. 6 is an explanatory view of the use of a frame rod in a conventional combustion gas blowing nozzle tip (ceramic).

FIG. 7 is a partial side view of a conventional iron manifold type gas lamp ignition / ignition device.

[Explanation of symbols]

 1 3 Mantle Type Burner 2 Manifold 3 Combustion Gas Blowout Nozzle Nozzle 3a Nozzle Tip 4 Mantle 5 Spark Rod 5a Spark 6 Frame Rod 7 Flame 8 Combustion Gas Supply Pipe 9 Air Hole 10 Gas Nozzle 11 Oxide Piece 12 Burner Fixing Rod 13a Gas Valve 13b Gas pressure hole 14 Governor 20 Burner for auxiliary combustion

Claims (1)

[Claims] 1. A combustion gas is combusted in an inner cavity 1
One or more downward mantles, combustion gas supply means for supplying fuel gas and air as the combustion gas to the inner cavity of the mantle, and ignition / ignition for igniting / igniting the combustion gas Means and a safety device for preventing discharge of the combustion gas, a gas lamp ignition / ignition device, comprising: ignition / ignition means for igniting / igniting the combustion gas, in the vicinity of the mantle. A gas lamp ignition / ignition device, characterized in that an auxiliary combustion burner provided with means and the safety device is provided.