JPH08210608A - Burner port for ignition of hot plate burner - Google Patents

Abstract

PURPOSE: To facilitate the direct ignition of a burner. CONSTITUTION: A hot plate burner is provided with a main burner port 3 having an obstruction 5 in front thereof which is formed by opening a part of the main burner port 3 to have a gas through hole 8 for a weak combustion, and a gas guide groove 4 having gas overflow ports 6 on both sides. During a weak ignition with the small quantity of gas, most of gas is blown off from the gas through hole 8 for a weak combustion. During a strong ignition with the large quantity of gas, a gas flow is checked by the obstruction 5 so that most of the gas flow overflows from the gas overflow ports 6 on both the sides and ignition due to a spark from an electrode 7 can be realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ignition flame port of a stove burner used for a gas table or the like.

[0002]

2. Description of the Related Art In a stove burner used for a gas table or the like, in the case of so-called direct ignition, in which the burner is directly ignited, the shape of the flame mouth of the ignition part affects the quality of the ignition. In the prior art, a part of the main flame mouth is used as it is, and it is not formed into a special flame mouth shape.

[0003]

In the prior art, for example, at the time of strong ignition at the time of strong combustion with a large capacity, a large amount of gas is ejected straight and vigorously from the main flame port, so The electrode etc. is heated due to the overflow of gas, etc., and its burnout is remarkable, and at the time of weak ignition at the time of weak combustion with a small capacity, since this is a small amount of gas and it diffuses and jets gently from the main flame port, its ignitability is There were problems such as extremely bad.

The present invention is intended to provide an ignition flame port for a stove burner for the purpose of solving the problems of the prior art.

[0005]

In order to achieve the above object, an ignition flame port of a stove burner according to the present invention has an annular shape as shown in FIGS. In a stove burner in which a burner head B provided with a large number of flame hole grooves 2 in a radial direction is placed on a burner body A having a mixing chamber 1 and a large number of main flame holes 3 are provided in the periphery, the main flame holes 3 A gas guide groove 4 along a gas flow direction is provided in a part of the gas guide groove, an obstacle 5 is provided on the downstream side of the gas guide groove 4, and a gas overflow port 6 is provided on both sides thereof. It is characterized in that the ignition electrode 7 is disposed on the side.

Further, the obstruction 5 has a gas passage 8 for weak combustion.
It is also characterized by wearing.

[0007]

Since the ignition flame port of the stove burner of the present invention is constructed as described above, during strong ignition with a large amount of gas,
The gas from the gas guide groove 4 is obstructed by the obstacle 5 on the wake side, and this acts as a resistance, and most of it overflows from the overflow ports 6 on both sides, so that the ignition is performed quickly and surely, and moreover, at the center. Since the gas in the part flows in a state in which the obstacle 5 is wrapped on both sides, the amount of the gas is considerably suppressed, and the overflow of the flame that heats the electrode is eliminated.

On the other hand, during weak ignition with a small amount of gas, the gas from the gas guide groove 4 does not overflow from the overflow ports 6 on both sides, most of it is decelerated by the obstacle 5, and the amount of gas changes (especially Since there is no decrease), the ignition can be performed quickly and reliably without any trouble.

Further, when the weak combustion gas passage 8 is formed in the obstacle 5, most of the gas is ejected from the weak combustion gas passage 8, and the ignition is quick and reliable without fluctuation of the gas amount. Done.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an ignition flame port of a stove burner according to the present invention will be described below with reference to the drawings.

In the embodiment shown in FIGS. 1 to 6, A is a burner body having an annular mixing chamber 1, and a mixing pipe 9 is provided in the annular mixing chamber 1.
Are integrally connected to each other, and an annular support portion 10 for mounting a burner head B, which will be described later, is provided on an upper surface opening portion, and a connection cylinder 12 into which a support cylinder 11 of the burner head B can be inserted and supported is provided at a central portion. , Is integrally formed by casting.

Reference numeral B is a burner head, which is provided with a large number of flame hole grooves 2 radially on its lower surface by projections 13 and has a support cylinder 11 at the center of the lower part and an air vent 14 at the center of the upper part.
5 and is integrally formed by casting.

When the ridges 13 of the burner head B are placed on the support portion 10 of the burner body A and the burner head B is placed on the burner body A, the burner head B has a flame port groove 2 and a large number of peripheral edge joints. The main flame mouth 3 is formed.

Reference numeral 4 denotes a gas guide groove provided in a part of the main flame port 3 along the gas flow direction. The front and both sides of the gas guide groove are surrounded by walls, and the front wall serves as an obstacle 5 and both sides. The gas overflow port 6 is bored in the wall of the front wall, that is, the obstacle 5
A weak combustion gas passage 8 is formed at the center of the.

In the weak combustion gas passage hole 8, for example, most of the gas amount when the capacity is small flows smoothly, and when the gas amount is large, the gas from the weak combustion gas passage hole 8 is passed. The amount is considerably suppressed, most of which constitutes the opening area overflowing from the gas overflow ports 6 on both sides.

A ridge 13 'is provided on the outside of the outlet of the gas overflow port 6 to partition it from the adjacent main flame port 3, and the weak combustion gas through hole 8 is slightly more than the main flame port 3. There is an opening in the retracted position.

Reference numeral 7 is an ignition electrode, which is installed on the downstream side of the obstacle 5 so as to fly a spark directed in such a direction as to reliably ignite the gas ejected from the weak combustion gas passage 8. .

In the above structure, for example, during strong ignition during strong combustion with a large capacity, the amount of gas is large, so most of the gas flowing in the guide groove 4 in the gas flow direction passes through the weak combustion gas passage 8. Front wall in the center, ie obstacle 5
Since the flow of the gas is disturbed and overflows from the gas overflow ports 6 on both sides (see arrow c in FIG. 6), the ignition by the spark from the electrode 7 on the downstream side to the gas flow is surely performed, and the burner is ignited with high flame. a is formed.

Since most of the gas flow overflows from the gas overflow port 6, the amount of gas from the weak combustion gas passage 8 is considerably suppressed, so that the overflow phenomenon of the flame a for heating the electrode 7 disappears. .

Next, for example, during weak ignition during weak combustion with a small capacity, the amount of gas is small, and the gas flowing in the guide groove 4 in the gas flow direction does not overflow from the gas overflow ports 6 on both sides. Most of the gas flows out from the weak combustion gas passage hole 8 formed in the obstacle 5 (see the arrow d in FIG. 6), so that there is no fluctuation in the predetermined gas amount and the spark from the electrode 7 on the downstream side thereof. Ignition is performed reliably without any trouble, and a low heat (for example, melting fire) b is formed in the burner.

Next, in the embodiment shown in FIG. 7, a small obstacle 5 is provided on the downstream side of the gas guide groove 4, and the weak combustion gas passage in the previous embodiment is eliminated. Since it is the same as the previous embodiment, the same parts are designated by the same reference numerals and the description thereof is omitted.

In this embodiment, during strong ignition, most of the gas flowing in the guide groove 4 is spilled out from the overflow ports 6 on both sides by the obstacle 5 in front acting as a resistance (see arrow c in FIG. 7). Ignition on the downstream side is reliably performed. Then, the gas in the central portion flows along both sides of the obstacle 5 and flows in a state in which the obstacle 5 is wrapped, so that the amount of gas in the central portion is considerably suppressed and there is no overflow of flames that heat the electrodes.

Next, at the time of weak ignition, most of the gas flowing in the guide groove 4 becomes a flow along the obstacle 5 which wraps around from both sides of the obstacle 5 due to the obstacle 5 acting as a resistance. Since the obstacle 5 flows in a state of enclosing the obstacle 5 to decelerate and there is no fluctuation in the gas amount (see arrow d in FIG. 7),
Ignition is reliably performed on the downstream side.

[0024]

According to the ignition burner of the stove burner according to the present invention, for example, during strong ignition during strong combustion with a large capacity, the gas from the gas guide groove is obstructed by an obstacle and gas on both sides is blocked. Since it spills to the overflow port, ignition on the downstream side is carried out quickly and reliably in combination with the deceleration of the gas flow, and of course the amount of gas in the central part is suppressed, so the flame that heats the electrode does not overflow and the electrode There is no burning.

Further, at the time of weak ignition at the time of weak combustion with a small capacity, most of the gas from the gas guide groove is decelerated by the obstruction in front without overflowing the gas to the gas overflow ports on both sides, and the gas amount is reduced. Since there is no fluctuation, the ignition by the spark from the electrode on the downstream side is reliably performed without any trouble, and there is no danger of releasing raw gas due to non-ignition.

Therefore, in a stove burner used for a gas table or the like, there is an unprecedented excellent effect that direct soaking, that is, so-called direct ignition, can always be stably performed.

[Brief description of drawings]

FIG. 1 is an overall sectional view showing an embodiment of an ignition flame port of a stove burner according to the present invention.

FIG. 2 is a partially cutaway elevational view of a burner head.

FIG. 3 is a front view of only a main part.

FIG. 4 is a sectional view taken along line XX of FIG.

FIG. 5 is a sectional view taken along line YY of FIG. 3;

FIG. 6 is a schematic plan view showing relational positions of main functional portions.

FIG. 7 is a schematic plan view showing relational positions of main functional portions of a different embodiment.

[Explanation of symbols]

 1 Annular Mixing Chamber A Burner Main Body 2 Flame Mouth Groove B Burner Head 3 Main Flame Mouth 4 Gas Induction Groove 5 Obstacle 6 Gas Overflow Port 7 Electrode 8 Gas Combustion Gas Hole

Claims (2)

[Claims] 1. A stove burner in which a burner head having a large number of flame hole grooves is mounted on a burner body having an annular mixing chamber and a plurality of main flame holes are provided on the periphery of the burner head. A gas guide groove along the gas flow direction is provided in a part of
An ignition flame port for a stove burner, characterized in that an obstacle is provided on both sides of the gas guide groove with a gas overflow opening on both sides, and an ignition electrode is arranged on the downstream side of the obstacle. . 2. An ignition flame port for a stove burner according to claim 1, wherein a gas passage for weak combustion is formed in the obstacle.