JPH0444166B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a burner device used in an indoor supply/exhaust type gas hot air heater.

Structure of the conventional example and its problems This type of conventional burner device has the burner flame hole 2a of the Bunsen burner 2 in the bottom surface of the box body 3, as shown in FIG.
An opening 3a of the same width is formed on the upper surface facing the burner flame hole 2a. When the mixed gas ejected from the burner flame hole 2a is ignited by the ignition electrode 5, the flame is emitted from the burner flame hole 2a.
It is formed in two stages: the top and the opening 3a of the box body 3.

However, at the time of ignition, since the opening 3a has the same width and is formed to a point opposite to the ignition electrode 5, the mixed gas rises vigorously and passes through the opening 3a, and there is a gap between the opening 3a and the ignition electrode 5. It tended to be difficult to create an atmosphere in the ignition range of the mixed gas.

OBJECTS OF THE INVENTION An object of the present invention is to provide a burner device that can reliably and easily ignite burner flame holes inside a box body.

Structure of the Invention In order to achieve the above object, the burner device of the present invention has the following features:
A Bunsen burner, a box housing a burner flame hole of the Bunsen burner, having a secondary air intake on the bottom and an opening on the top, an ignition electrode provided in the box, and the ignition a partition plate provided near the electrode to partition the inside of the box; a cutout for fire transfer is provided at the bottom of the partition plate; and the opening has a portion facing the ignition electrode larger than the other It has a structure with a small opening area, and by making the area of the opening facing the partition plate and the ignition electrode smaller than the other areas, the mixed gas pool near the ignition electrode is improved to ensure ignition.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
This will be explained based on the diagram.

1 is a nozzle for supplying gas, 2 is a Bunsen burner, 3 is a rectangular box body that controls the amount of secondary air for combustion to the Bunsen burner 2, 4 is a flame rod for combustion detection provided in the box body 3, and 5 is a flame rod for combustion detection. An ignition electrode 6 is provided in the box body 3 to generate a high-pressure spark for ignition, and 6 is a partition plate that partitions the box body 3 in proximity to the ignition electrode 5, and includes an ignition electrode 5 for ignition and a flame rod 4 for combustion detection. A notch 6a is provided at the center of the lower end to serve as a partition between the two. A part 3b of the upper opening 3a of the box body 3 of the ignition electrode 5 divided by the partition plate 6 has a smaller opening area than the combustion detection flame rod 4, so that the mixed gas accumulates during ignition and ignites quickly. The other flame rod 4 for combustion detection enlarges the upper opening 3a to make it difficult for mixed gas to accumulate, and to prevent explosion and ignition due to delayed flame transfer.

That is, the gas flowing into the Bunsen burner 2 from the nozzle 1 together with air becomes a mixture and is ejected from the burner flame hole 2a, and at this time, the ignition electrode 5
It is ignited and flames are formed at two locations, the burner flame hole 2a and the opening 3a, resulting in two-stage combustion. Further, at the time of ignition, the mixed gas is more likely to accumulate due to the partition plate 6 and the opening 3b provided in the vicinity of the ignition electrode 5 than before, and is easily ignited by the ignition electrode 5. Furthermore, the ignited flame passes through the notch 6a and moves to the burner flame hole 2a on the right side of the partition plate 6.

FIG. 2 is a sectional view taken along line xx' in FIG. It shows that a controlled air intake port 7 for suppressing the secondary air necessary for combustion is constructed at the bottom of the box 3, and illustrates the flow of secondary air a and exhaust gas b. . As shown in this figure, by suppressing the secondary air a, the flame becomes longer and high-temperature oxidation is prevented.

Figure 3 is a bottom view of the burner insertion port 3c.
The notch 3d having the L dimension of the burner insertion port 3c, which indicates the size to fit with the burner flame hole 2a, directly supplies secondary air to the burner flame hole 2a to form a Bunsen flame, and the entire flame is It has a flame-holding effect to prevent lift-up. It is especially effective when the indoor air is low.

FIG. 4 is a sectional view taken along the line Y--Y' in FIG. 2, showing the relative positions of the flame rod 4, the ignition electrode 5, and the partition plate 6.

FIG. 5 shows a gas hot air heater 8 using the burner device described above. Since it is an open indoor type, combustion exhaust gas is blown out from the grill 9 and circulated within the room.
Implementation of this type of heater is extremely effective.

Effects of the Invention As described above, the present invention provides a partition plate near the ignition electrode, and the opening on the top surface of the box facing the ignition electrode is made smaller than others, so that the burner flame hole in the vicinity of the ignition electrode is smaller than that of the box. The mixed gas ejected into the body accumulates more easily than before, making ignition easier and more reliable.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a burner device according to an embodiment of the present invention, Fig. 2 is a sectional view taken along line X-X' in Fig. 1, and Fig. 3 is a bottom view of the combustion box of the same device. Figure 4 is a cross-sectional view taken along the Y-Y' line in Figure 1;
This figure is an external perspective view of a gas hot air heater using the same device, and FIG. 6 is a perspective view of the conventional device with main parts cut away. 2...Bunsen burner, 2a...burner flame hole,
3...Box body, 3a, 3b...Top opening, 3d...
...notch, 6...partition plate, 7...air intake port.

Claims (1)

[Claims] 1. A Bunsen burner, a box housing the burner flame hole of the Bunsen burner and having a secondary air intake on the bottom and an opening on the top, an ignition electrode provided in the box, and a partition plate provided near the ignition electrode to partition the inside of the box; a cutout for spreading the flame is provided at the bottom of the partition plate; A burner device with a smaller opening area.