JP2005249317A - Torch burner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a torch burner for preventing the clogging of a gas injection nozzle for a long period. <P>SOLUTION: The torch burner comprises an outer cylinder 2 having an opening at the front end, a gas introduction part 3 connected to the base end of the outer cylinder 2, the gas introduction part 3 having the gas injection nozzle 4a, and a cylindrical burner body 5 for guiding a mixture consisting of air flowing from an air hole 2a of the outer cylinder 2 and gas injected from the injection nozzle 4a to a flame injection port. The outer cylinder 2 has a circular air inlet 7d at the base end, and an air amount controller 7 is externally fitted thereto for the air flowing from the air inlet 7d to flow into the air hole 2a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an improvement in a torch burner that uses a cassette cylinder as a gas supply source, for example, to scorch the surface of pudding, meat, etc., and more specifically, prevents early clogging of a gas injection nozzle due to oil mist or the like. It is about a torch burner that makes it possible.

  As a torch burner using a cassette cylinder as a gas supply source, for example, a torch burner configured as described later is known. Hereinafter, a schematic configuration of the torch burner according to this conventional example will be described with reference to the accompanying drawings. FIG. 4 is a side view of a torch burner according to a conventional example, and FIG. 5 is a vertical side view of the torch burner according to the conventional example.

A burner kit (hereinafter referred to as a torch burner) 30 attached to a gas cylinder (hereinafter referred to as a cassette cylinder) 10 includes a burner outer pipe 31 that forms a crater, a nozzle 32 that injects gas, and a gas G that flows through the nozzle 32. A needle knob 34 for adjusting the flow rate with a needle (not shown), a lock nut 35 for mounting and fixing the torch burner 30 to the cassette cylinder 10, a piezoelectric ignition device 36 for igniting gas, and the like. In addition, a horizontally long oval air hole 37 is provided in the vicinity of the tip of the nozzle 32 and on the left and right side surfaces of the burner outer tube 31. The air flowing from the air hole 37 and the nozzle 32 are provided. Is mixed with the gas injected from the nozzle and placed in the crater at the tip of the burner outer tube 31. The mixed air-fuel mixture is ignited by the piezoelectric ignition device 36, and a flame is injected from the crater at the tip of the burner outer tube 31. Note that the torch burner 30 configured as described above is described as related to a conventional technique (for example, see Patent Document 1).
JP 2002-327909 A

  By the way, in the above-mentioned patent document 1, in order to solve the disadvantages of the torch burner 30, that is, the problem that it is composed of a metal member and is heavy and expensive, disposal can be easily performed. A disposable torch burner having such a configuration (a configuration that can be disposed of separately) has been proposed. However, from the viewpoint of resource saving, since this disposable torch burner is uneconomical, the torch burner 30 configured as described above is still popular and widely used.

  The torch burner 30 according to the conventional example is generally used for cooking purposes, for example, for scoring the surface of pudding or meat. However, since the inner diameter of the nozzle for injecting gas is, for example, about 0.3 mm and is extremely small, it becomes impossible to inject gas due to clogging due to long-term use, and it is finally used as a torch burner. There were many troubles that could not be done. As a result of investigating the cause of the nozzle clogging at an early stage, it was found that it was caused by the following.

  That is, when scorching the surface of pudding, meat, etc., the cooking material becomes a source of oil mist, and a large amount of oil mist is scattered and floating in the air near the torch burner. As shown in FIG. 6 (air flow explanatory diagram), air containing a large amount of oil mist directly flows into the air-fuel mixing chamber 38 through the air holes 37. Most of the air flows in the direction of the crater following the flow of the gas G, but a part flows directly toward the nozzle, and the oil mist in the air adheres to the nozzle. The repetition of solidification gradually increases the amount of solidified oil, which eventually clogs the nozzle.

  Accordingly, an object of the present invention is to provide a torch burner that makes it possible to prevent early clogging of an injection nozzle over a long period of time.

  The present invention has been made in order to solve the above-mentioned problems. Therefore, the torch burner according to claim 1 of the present invention includes an outer cylinder 2 having an opening on the distal end side, and the outer cylinder body 2. A gas lead-out part 3 connected to the base end side is provided, the gas lead-out part 3 is provided with an injection nozzle 4a for injecting gas, and air flowing in from an air hole 2a provided in the outer cylinder 2 and the injection nozzle In the torch burner provided with the cylindrical burner body 5 for guiding the air-fuel mixture composed of the gas injected from 4a to the flame injection port 5a, an annular air inlet 7d is provided at the base end of the outer cylindrical body 2. The air amount adjusting body 7 that guides the air flowing in from the air inlet 7d and flows into the air hole 2a is externally fitted.

  The torch burner according to claim 2 of the present invention is the torch burner according to claim 1, wherein the annular air inlet 7d of the air amount adjusting body 7 has an open end on the gas outlet 3 side. It is what.

  The structure of the torch burner according to claim 3 of the present invention is the torch burner according to any one of claims 1 and 2, wherein the air amount adjusting body 7 is a center passing through a radial center of the outer cylindrical body 2. It is characterized by being reversibly rotatable around a line.

  According to the torch burner according to claim 1 of the present invention, the air hole 2a is substantially covered with the air amount adjusting body 7, and the oil mist scattered and floating from the cooking material that is an oil mist generating source is combined with the air. Although it flows in from the air inflow port 7d of the air amount adjusting body 7, the air amount adjusting body 7 is prevented from going directly to the air hole 2a. That is, the air amount adjusting body 7 functions as a member (oil separating member) that prevents oil mistakes, and the amount of oil mist adhering to the injection nozzle 4a is reduced, so that the injection nozzle 4a becomes clogged and causes trouble. The period will be greatly extended.

According to the torch burner according to claim 2 of the present invention, since the annular air inlet 7d of the air amount adjusting body 7 has an open end on the gas outlet 3 side, the air inlet 7d is directed to the air hole 2a. Since the direction of the air changes greatly and detours, the oil mist scattered from the cooking material that is the source of oil mist generation further promotes oil separation due to its flow inertia.
Moreover, according to the torch burner according to claim 3 of the present invention, in addition to the effect of the torch burner according to claim 1 or 2 of the present invention, the air amount adjusting body 7 is rotated to flow into the burner body 5. It is convenient because the amount of air can be adjusted.

  Hereinafter, a torch burner according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a longitudinal side view of a torch burner according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is an explanatory diagram of air flow.

  Reference numeral 1 shown in FIG. 1 is a torch burner according to an embodiment of the present invention used for scoring a surface of pudding, meat, or the like. The torch burner 1 has an opening on the distal end side and an outer cylindrical body 2 in which air holes 2 a are provided on the left and right of the base end portion, and a gas outlet 3 connected to the base end side of the outer cylindrical body 2. And. The gas lead-out unit 3 is detachably mounted with a gas flow rate adjusting knob (gas flow rate control unit) 3a, a piezoelectric ignition device (ignition unit) 3b for generating a spark in an ignition unit to be described later, and a well-known cassette cylinder (not shown). The cylinder mounting portion 3c is provided. The gas outlet 3 is provided with a nozzle support 4 having an injection nozzle 4a for injecting gas flowing out of the gas cylinder. In addition, a cylindrical burner body 5 having a flame injection port 5a at the tip is provided inside the outer cylindrical body 2.

  The burner body 5 is an air-fuel mixture composed of air flowing in from the air holes 2a provided on the left and right sides of the base end portion of the outer cylinder 2 and gas injected from the injection nozzle 4a. It guides in the direction of the flame injection port 5a at the tip. Further, an ignition unit 6 is provided outside the burner body 5 in the vicinity of the flame injection port 5a. The ignition unit 6 generates a spark by the operation of the piezoelectric ignition device 3b and ignites the air-fuel mixture discharged from the flame injection port 5a. Yes.

  Furthermore, an air amount adjusting body 7 is provided on the gas outlet 3 side of the outer cylinder 2 to block the air hole 2a and open the block. The air amount adjusting body 7 is externally fitted so as to be reversibly rotatable around a center line passing through the center in the radial direction of the outer cylindrical body 2. As shown in FIGS. It is comprised so that it may cover. That is, the air amount adjusting body 7 has a double cylinder configuration. More specifically, the large-diameter cylindrical member 7a, and a small-diameter having a notch 7c that is concentric with the large-diameter cylindrical member 7a and that allows air to flow into the air hole 2a at two opposite positions in the circumferential direction. The cylindrical member 7b is provided, and the distal end side of the outer cylindrical body 2 of the large-diameter cylindrical member 7a and the small-diameter cylindrical member 7b is closed. An annular air inlet 7d having an open end is provided on the side opposite to the air amount adjuster 7, that is, on the gas outlet 3 side.

Hereinafter, the operation mode of the torch burner 1 according to the embodiment of the present invention will be described.
According to this torch burner 1, the air hole 2 a is substantially covered with the air amount adjusting body 7, and the oil mist scattered and floating from the cooking material that is the source of oil mist is contained in the air amount adjusting body 7 together with the air. After flowing in from the air inlet 7d and flowing in the forward direction of the outer cylinder 2, the air flows from the air hole 2a into the burner body 5 through the notch 7c. It is prevented from going to 2a. That is, since the air amount adjusting body 7 functions as a baffle member (oil separation member) with the oil mist and the amount of oil mist adhering to the injection nozzle 4a is reduced, the injection nozzle 4a is clogged until a trouble occurs. The period will be greatly extended. Since the air inlet 7d has an open end on the gas outlet 3 side, the oil mist scattered from the cooking material changes greatly in the direction from the air inlet 7d toward the air hole 2a, so that the flow of the oil mist Oil separation is further promoted by inertia.

  Incidentally, in the torch burner having the same configuration as the conventional example, clogging occurred in about 3 months at the commercial cooking site, but in the torch burner according to the embodiment of the present invention, clogging did not occur after 6 months. It has been found that it can contribute to the prevention of clogging.

  In the conventional example in which the air hole is exposed, adjustment of the air amount is inconvenient, and thus inconvenient for adjusting the flame. However, the torch burner 1 according to the embodiment of the present invention is configured by rotating the air amount adjusting body 7. Since the amount of air flowing into the burner body 5 from the air hole 2a can be adjusted, and the flame can be adjusted, it is convenient.

  In the torch burner according to the above embodiment, the air inlet 7d has an opening end on the gas outlet 3 side as an example, but the air inlet 7d has an opening end on the front side of the burner body 5. It can be anything. Instead of rotating the air amount adjusting body 7, the air amount may be adjusted by moving forward and backward. Furthermore, in the above embodiment, a cooking torch burner used for scoring the surface of pudding, meat, etc. has been described as an example, but it is also applicable to work site applications where oil mist floats in the air. It is not limited to cooking applications.

It is a vertical side view of the torch burner according to the embodiment of the present invention. It is an AA arrow directional cross-sectional view of FIG. It is airflow explanatory drawing which concerns on embodiment of this invention. It is a side view of the torch burner which concerns on a prior art example. It is a vertical side view of the torch burner according to the conventional example. It is airflow explanatory drawing which concerns on a prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Torch burner, 2 ... Outer cylinder body, 2a ... Air hole, 3 ... Gas extraction part, 3a ... Gas flow control knob, 3b ... Piezoelectric ignition device, 3c ... Cylinder mounting part, 4 ... Nozzle support body, 4a ... Injection nozzle DESCRIPTION OF SYMBOLS 5 ... Burner body, 5a ... Flame injection port, 6 ... Ignition part, 7 ... Air flow rate adjustment body, 7a ... Large diameter cylindrical member, 7b ... Small diameter cylindrical member, 7c ... Notch, 7d ... Air inflow port.

Claims (3)

Provided with an outer cylinder (2) having an opening on the distal end side and a gas outlet (3) connected to the base end side of the outer cylinder (2), and the gas outlet (3) injects gas An injection nozzle (4a) is provided, and an air-fuel mixture consisting of air flowing from an air hole (2a) provided in the outer cylinder (2) and gas injected from the injection nozzle (4a) In the torch burner provided with a cylindrical burner body (5) guided to
An air flow inlet (7d) having an annular air inlet (7d) is provided at the base end of the outer cylindrical body (2), and the air that flows from the air inlet (7d) is guided into the air hole (2a). A torch burner characterized by externally fitting a quantity adjusting body (7). The torch burner according to claim 1, wherein the annular air inlet (7d) of the air amount adjusting body (7) has an open end on the gas outlet part (3) side.   The torch burner according to claim 1 or 2, wherein the air amount adjusting body (7) is reversibly rotatable around a center line passing through a center in a radial direction of the outer cylinder (2).