JPH06300257A - Burner device for smoking-lighter - Google Patents

Abstract

PURPOSE:To supply air for diffusion combustion sufficiently and permit the continuation of stabilized diffusion combustion by a method wherein a burner nozzle for diffusion flame is arranged adjacently to the side of a combustion tube for premixed flame. CONSTITUTION:A burner nozzle 18 for diffusion flame is arranged adjacently to the side of a combustion tube 25, in which premixed flame is formed, while the nozzle end 30 of the burner nozzle 29 for diffusion flame is arranged adjacently to a catalyst wire 31 arranged above the combustion tube for premixed flame. The ignition of the diffusion flame is effected by ignited premixed flame. According to this method, the ignition of the diffusion flame, which is used for the pilot flame of the premixed flame and the diffusion flame, is permitted while supplying air for diffusion combustion sufficiently whereby stabilized diffusion combustion can be continued.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has two modes of combustion, premixed combustion and diffusion combustion, and uses premixed combustion as a pilot flame for ignition of diffusion combustion. The present invention relates to a burner device for a smoking lighter that is ignited.

[0002]

2. Description of the Related Art Conventionally, the most common type of combustion used in smoking lighters is to ignite fuel gas by ejecting it from a burner nozzle connected to a combustion storage tank, and the air required for combustion is a ignited flame. It is a diffusion combustion that is taken in from the outer periphery of, and the diffusion flame that is formed is red and can be easily seen even in the daytime.

On the other hand, in recent years, a lighter using a premixed flame has been proposed in which air and fuel gas are mixed in advance before combustion is started in the burner nozzle and the premixed mixture is ignited and burned in the burner nozzle. It has been put to practical use.
The premixed flame is a mixture of air with fuel gas in advance, has a characteristic that the flow velocity is higher than that of a diffusion flame and is hard to blow out, and it is not necessary to take in air from the outer periphery of the flame during the combustion process. Although it has the advantage that a flame can be formed inside the combustion cylinder with a high windbreak function and a wind-resistant lighter can be provided, it is a colorless flame that is close to complete combustion, so it becomes difficult to see the daytime flame, and It had the drawback of making ignition inconvenient.

Therefore, there has been proposed one in which these two types of combustion types are incorporated in a single lighter, which is disclosed, for example, in Japanese Patent Laid-Open No. 3-186114. The lighter disclosed in Japanese Patent Laid-Open No. 3-186114 intends to use a premixed flame as a pilot flame for igniting a diffusion flame, and two flames are simultaneously formed. , Ignition of cigarettes is done by diffusion flame. However, in this known lighter, since the burner nozzle for premixed combustion and the burner nozzle for diffusion combustion are coaxially positioned above and below in a single combustion cylinder, the supply of air for diffusion combustion is performed. However, there was a drawback that the diffusion flame was blown out on the way, or the combustion became unstable.

[0005]

The present invention makes it possible to ignite a diffusion flame as a pilot flame of a premixed flame and a diffusion flame, while supplying sufficient air for diffusion combustion to achieve stable diffusion. It is intended to provide a burner device capable of continuing combustion.

[0006]

In order to solve the above-mentioned problems, the means adopted by the present invention is to form two gas passage holes in a manifold connected to a fuel tank via an opening / closing valve, Burner nozzle means for premixed flame in the gas passage,
Diffusion flame burner nozzle means are respectively connected to the second gas passages, premixed flame combustion cylinders are connected to the upper portion of the premixed flame burner means, and adjacent to the side portions of the premixed flame combustion cylinders. The diffusion flame burner means is disposed, a catalyst wire is disposed above the combustion cylinder for premixed flame, and the catalyst wire and the nozzle end of the diffusion flame burner nozzle means are arranged close to each other. To do.

[0007]

[Operation] The burner nozzle means for diffusion flame is arranged adjacent to the side of the combustion cylinder where the premixed flame is formed, and the diffusion flame is arranged close to the catalyst wire arranged above the combustion cylinder for premixed flame. The nozzle end of the burner nozzle means is arranged to ignite the diffusion flame with the ignited premixed flame.

[0008]

According to the present invention, since it is only necessary to dispose the diffusion flame burner nozzle means adjacent to the side portion of the premixed flame combustion tube, the shape of the combustion tube formed of a heat resistant material. The structure is simple, and when viewed from the outside,
There is an advantage that the shape of the upper part of the combustion tube is beautiful and the product value is improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail below with reference to the drawings. In the figure, (1) is a lid (2)
It is a lighter casing whose upper part can be freely opened and closed, and a tank (3) for storing combustible fuel gas is inserted therein. A burner valve device (4) is arranged on one side of the tank (3) along a vertical axis, and a lower portion of the burner valve device (4) is a flow rate of fuel gas from the tank (3) to the burner nozzle. The flow rate adjusting valve (5) for adjusting the flow rate is configured, and the flow rate can be arbitrarily adjusted by the adjusting knob (6) facing the bottom surface of the lighter casing (1). Burner valve device
An opening / closing valve (7) is incorporated in substantially the center of (4). The opening / closing rod (8) of the opening / closing valve (7) is lifted to open the valve, and the fuel gas that has flowed out is opened / closed (8). Gas passage in () (9)
Through to the manifold (10). The upper part of the opening / closing rod (8) is inserted and connected to the lower part of the manifold (10). The manifold (10) has two through holes (11) (12),
The first gas through hole (11) is opened upward along the axial direction of the gas passage (9), and has a burner means for premixed flame which will be described later.
(18) is connected. The second gas passage (12) is a gas passage.
A burner means (29) for diffusion flame is connected to the burner means (29) which is opened in the lateral direction orthogonal to (9). During the opening and closing rod (8),
A flange (13) is formed, and a lever member (1) is formed on the flange (13).
The manifold (10) is supported on the upper surface of the flange (13) while the tip of the (4) is engaged. At the other end of the lever member (14), an operating tongue hanging from the operation button (15) of the lighter is positioned so that it can come into contact therewith. An O-ring (16) is fitted over the opening / closing rod (8) inserted into the manifold (10) to seal the gap between the manifold (10) and the opening / closing rod (8) to prevent gas leakage. ing.

A jet block body having fine jet holes (19) is fitted into the upper small diameter portion (17) of the manifold (10),
A premixing burner means (18) having a recess (20) for receiving the jet block body formed in the lower portion is connected to the upper portion of the manifold (10). The premixing burner means (18) has a structure independent of the manifold (10), and is a mounting plate made of a spring plate.
Supported by (21).

An air suction port (22) is opened in the premixing burner means (18) located downstream of the ejection hole (19), and a negative gas generated around the gas flow rapidly ejected from the ejection hole (19). The pressure draws air from the outside and premixes it with the fuel gas.
The premixed air mixed with the sucked air further rises and collides with the diffuser (23) arranged so as to close the upper opening of the premixing burner means (18), thereby lowering and disturbing the flow velocity. Flow, which further improves the mixing of air and fuel gas. In this way, the premixed gas with a better mixed state rises from the ring-shaped passage (24) formed by the knurled grooves around the diffuser (23), and the premixed burner means (18) It flows out into the large-diameter combustion tube (25) connected to the upper part. The premixture flowing out into the combustion tube (25) rises along the inner wall of the combustion tube (25) by the umbrella-shaped flame stabilizer (26) set up on the upper surface of the diffuser (23). Be oriented. Inside the combustion tube (25) is a discharge electrode (2
7) is extended, the premixture is ignited in the combustion tube (25) by the discharge spark provided by the discharge electrode (27), stably burns in the flame stabilizer (26), and the premixed flame Is formed.

A diffusion burner means (29) is arranged adjacent to the side portion of the combustion cylinder (25) for premixed combustion.

In the second gas passage (12) of the manifold (10), a burner means for diffusion flame is provided via a pipe means (28).
(29) is connected, and the nozzle end (30) of the burner means (29) is positioned so as to substantially coincide with the upper end of the premixed flame combustion tube (25).

At the outlet end of the second gas passage (12), a throttle valve plate (36) having fine ejection holes (35) is provided, and the throttle valve plate (36) flows out to the diffusion flame burner means (29). The gas flow rate is adjusted to be approximately the same as the gas flow rate flowing out to the burner means (18) for the premixed flame.

When the opening / closing rod (8) is lifted by the lever member (14) and the opening / closing valve (7) is opened, the fuel gas in the fuel tank (3) passes through the gas passage (9) and the manifold ( 10), a part of which is discharged from the ejection hole (19) into the premixing burner means (18) through the first gas passage hole (11), and the rest is the second gas passage hole (12), From the ejection hole (35) and the pipe means (28), they flow out to the diffusion flame burner means (29) and are ejected from the nozzle end (30). The jet holes (19) and (35) act as a throttle valve, and by appropriately setting the diameter of the jet holes (19) (35), the burner means (18) for premixed flame and the diffusion flame It is possible to set the flow rate of each gas branched to the burner means (29) to an optimum one. When ignited, the fuel gas ejected from the nozzle end (30) burns while taking in air from the surroundings and becomes a diffusion flame.

The fuel gas that has been opened in the on-off valve (7) and moved up in the gas passage (9) is diverted by the manifold (10), and the fuel gas that has been rapidly ejected from the ejection port (19) is the air suction port. (twenty two)
While being premixed with the air sucked from the, it flows out into the combustion cylinder (25) and is ignited to form a premixed flame of a small flame, such as platinum placed across the upper part of the combustion cylinder (25). Catalytic wire
While heating (31), it becomes a pilot flame for igniting the fuel gas ejected from the nozzle end (30) of the diffusion flame burner means (29), and a large flame diffusion flame is created at the diffusion flame nozzle end. Then, the cigarette can be ignited. Since the air necessary for forming and continuing this diffusion flame is sufficiently supplied from the surroundings, it is possible to stably form and continue the diffusion flame.

Reference numeral (32) is a piezoelectric generator that is arranged in parallel with the burner valve device (4) on one side of the fuel tank (3), and has an operating button (15) on its movable part (33). When the operation button (15) is pressed, the movable part (33) descends to operate the piezoelectric generator (32) and generate piezoelectric. The generated piezoelectricity is guided to the discharge electrode (27) through the lead wire (34) and spark-discharges with the flame stabilizer (26) of the burner means (18) for premixed flame. The burner means (18) for premixed flame is held by a mounting plate (21) made of a spring plate, and is connected to the ground side of the piezoelectric generator (32) through the mounting plate (21) and grounded. Is configured.

When the operation button (15) is depressed, the piezoelectric generator (32) is activated, the lever member (14) is activated, and the opening / closing rod (8) is raised to open the opening / closing valve (7). Is opened,
The outflow of fuel gas is permitted and the gas passage (9) rises.
The fuel gas that has risen in the gas passage (9) is ejected from the ejection hole (19) to form a premixed gas, which flows out into the combustion tube (25) and is ignited by a discharge spark to be ignited in the combustion tube (25). Create a stable premixed flame in the flame stabilizer (26). Premixed flame, combustion tube (25)
The catalyst wire (31) made of platinum or the like arranged on the upper part of the is heated and burned to become a pilot flame for diffusion flame ignition. At the same time, the fuel gas flows out to the diffusion flame burner means (29), flows out from the nozzle end (30), is ignited by the premixed flame that has become a small pilot flame, and is burned to the outside. When the pushing force to the operation button (15) is removed, the opening / closing rod (8) is closed by the elastic force of the spring attached thereto, and the outflow of fuel gas is stopped.

[Brief description of drawings]

FIG. 1 is an overall vertical sectional view

FIG. 2 is a vertical cross-sectional view of a main part

[Explanation of symbols]

 (1) Lighter casing (2) Lid (3) Tank (4) Burner valve device (5) Flow rate adjusting valve (6) Adjusting knob (7) Open / close valve (8) Open / close rod (9) Gas passage (10) Manifold ( 11) First gas through hole (12) Second gas through hole (13) Flange (14) Lever member (15) Operation button (16) O-ring (17) Small diameter part (18) Burner means for premixed flame (19) ) Injection hole (20) Recess (21) Mounting plate (22) Air suction port (23) Diffuser (24) Ring passage (25) Combustion tube for premixed flame (26) Flame stabilizer (27) Discharge electrode (28) Pipe means (29) Diffusion flame burner means (30) Nozzle end (31) Catalyst wire (32) Piezoelectric generator (33) Moving part (34) Lead wire (35) Jet hole (36) Throttle valve Board

Claims (1)

[Claims] 1. A manifold connected to a fuel tank via an opening / closing valve, wherein two gas through holes are formed, and a burner nozzle means for premixed flame is diffused into the first gas through hole and a second gas through hole. The burner nozzle means for flames are respectively connected, the combustion cylinder for premixed flame is connected to the upper portion of the burner means for premixed flame, and the burner means for diffusion flame is adjacent to the side portion of the combustion cylinder for premixed flame. Arranged, above the combustion tube for premixed flame,
A burner device for a smoking lighter, characterized in that a catalyst wire is provided, and the catalyst wire and a nozzle end of a burner nozzle means for diffusion flame are brought close to each other.