JPH0534436U - Combustion device - Google Patents

Abstract

(57) [Summary] [Purpose] A flame detection system that burns a mixed gas of vaporized gas and primary air on a flame hole network and detects the flame with a flame rod. There is a problem that the current is too low to be detected. The present invention aims to solve these problems. [Structure] A flame hole network 7 is provided on a burner 5, and a frame rod 12 is provided on the upper surface of the flame rod network 7 so as to cross the flame hole network 7. An auxiliary gas through hole 13 for bypassing the mixed gas is provided, and an auxiliary flame hole 10 is provided on the upper surface thereof. As a result, the frame rod can detect flames in both the flame hole network 7 and the auxiliary flame holes 10, and the flame current can be detected reliably. [Effect] It is possible to burn a calorie lower than before and provide a combustor with high comfort.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a combustion device in which liquid fuel is vaporized and ejected from a nozzle, and the ejected energy sucks primary air and burns it on a burner.

[0002]

[Prior Art]

 In a conventional combustion apparatus of this type, as shown in FIG. 5, a burner 1 is formed by caulking the lower burner 2 and the upper burner 5, and a lower portion 2 is provided with a mouse 2a for guiding vaporized gas from a nozzle 8. At the same time, the mixing tube 3 was attached concentrically with the mouse 2a, and the flame hole net 7 was provided on the burner 5 via the flow straightening net 6, and the frame rod 12 was attached to the upper surface thereof.

[0003]

[Problems to be solved by the device]

 In this structure, when the vaporized gas is ejected from the nozzle 8 into the mixing tube 3, the ejection energy causes the mouse 2a under the burner 2 to suck the primary air into the mixing tube 3 and the rectifying mesh from the tip of the mixing tube 3 Although it burns on the flame hole network 7 through 6, the flame rod 12 for detecting the flame flame current is provided as a safety device so that the combustion amount is reduced. There was a problem that the flame was less contacted with the flame rod 12 and the flame current value was below the value required for detection, making it impossible to detect.

[0004]

[Means for Solving the Problems]

 The present invention was made in order to solve the above-mentioned problems, and in the case where a flame hole net is provided on the burner and a frame rod is provided on the upper surface of the flame rod so as to traverse the flame hole net, it faces the above frame rod. An auxiliary gas passage is provided on the burner outside the flame net to bypass the mixed gas, and an auxiliary flame hole is provided on the upper surface of the burner so as to contact the flame net.

[0005]

[Action]

 According to this, even if the combustion amount is reduced, the flame of the flame hole network and the flame of the auxiliary flame can be integrated into one flame, and the width of the flame can be widened, and the flame current from both flames can be detected. The frame current can be increased.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS.

In the figure, reference numeral 1 is a burner, which is composed of a lower burner 2 and an upper burner 5. The lower part of the burner 2 has a mouse 2a formed at the base thereof, and a mixing tube 3 having a flared shape is formed therein. A baffle 4 is provided on the upper surface of the mixing tube 3 and has a plurality of small holes on the plane. Reference numeral 5 has an upper portion opened on the burner, and a rectifying mesh 6 and a flame hole mesh 7 are attached to the inside by spot welding. A frame rod 12 is attached to the upper surface of the flame hole network 7 so as to cross it. Reference numeral 13 denotes an auxiliary gas passage, which is provided on the upper surface of the burner 5 at a position facing the frame rod 12, and an auxiliary cover 15 is provided on the upper surface thereof to provide an auxiliary flame hole chamber 14 and an upper portion of the auxiliary flame hole chamber 14. Is provided with a slit-shaped auxiliary flame hole 10 so as to be in contact with the flame hole network 7.

Next, the operation will be described.

The vaporized gas is ejected from the nozzle 8 and flows into the mixing tube 3 from the mouse 2 a below the burner 2. At this time, the primary air is also sucked from around the mouse 2a and sufficiently mixed with the vaporized gas in the mixing chamber 10. Then, the mixed vaporized gas is uniformly rectified by the buckle 4 located downstream, is further rectified completely by the rectification network 6 on the upper surface thereof, and is ignited by the igniter (not shown) on the upper flame hole network 7. To burn. At the same time, the gas flowing from the auxiliary gas through hole 13 is ejected from the auxiliary flame hole chamber 14 to the auxiliary flame hole 10, and the main flame 9 and the auxiliary flame 11 are simultaneously integrated on the flame net 7 and the auxiliary flame hole 10. Is formed as. As a result, the flame rod 12 detects the flames 9 and 11 of both the flame hole network 7 and the auxiliary flame hole 10, and as shown in FIG. 4, the flame current can be secured even when the combustion amount is reduced. ..

[0010]

[Effect of the device]

 As described above, according to the present invention, it is possible to provide a combustion device which can form a stable flame, can be used with a smaller amount of combustion than before, and is highly safe and comfortable.

[Brief description of drawings]

FIG. 1 is a top view of a burner according to an embodiment of the present invention.

FIG. 2 is a sectional view of the same main part.

FIG. 3 is a sectional view of the same main part.

FIG. 4 is a frame current characteristic diagram of the present invention.

FIG. 5 is a sectional view of a conventional burner.

[Explanation of symbols]

 1 Burner 4 Baffle 7 Flame Hole Network 9 Main Flame 10 Auxiliary Flame Hole 11 Auxiliary Flame 12 Frame Rod 13 Auxiliary Hole Gas Passage Hole

Claims (1)

[Scope of utility model registration request] 1. Burner (1) with burner upper (5) burner lower (2)
And a flame hole network (7) is provided on the burner (5).
A flame rod (12) is installed on the (7) so as to traverse the flame net (7), and the mixed gas of vaporized gas and primary air flowing into the burner (1) is burned on the flame net (7). The auxiliary gas passage hole (13) through which the mixed gas is bypassed on the burner (5) outside the flame net (7) facing the frame rod (12).
A supplementary flame hole is provided on the upper surface so that it contacts the flame hole network (7).
A combustion device provided with (10).