JPS60178208A - Far infrared ray radiation burner - Google Patents

Abstract

PURPOSE:To provide a burner which can maintain a good burnability with a relatively small input and yet has a high efficiency of far infrared ray radiation by providing a secondary radiation mass in front of an infrared rays radiation mass with a suitable space inbetween, said secondary radiation mass having area greater than the infrared radiation mass. CONSTITUTION:When gas mixture burns all over an infrared rays radiation mass 3, the infrared radiation mass 3 becomes red-hot at a relatively high temperature (about 600-700 deg.C), and radiates infrared rays toward a secondary radiation mass 7. Due to the reflection heat by the secondary radiation mass 7, the surface of the infrared rays radiation mass 3 is maintained at a high temperature enough to present a good burnability even if the burning amount is small. Meanwhile, since the surface area of the secondary radiation mass 7 is made larger than that of the infrared rays radiation mass 3, a relatively low temperature (about 400-500 deg.C) is maintained. Therefore, a large amount of infrared rays (far infrared rays) of a long wave length are radiated from the surface of the secondary radiation mass 7 by low-temperature radiation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a relatively large amount of infrared rays, which have long wavelengths and are particularly easily absorbed by carbohydrates, in order to achieve a gentle heating effect with almost no flame rise. The present invention relates to a far-infrared radiation burner with a completely new configuration capable of radiating a large amount of far-infrared rays.

By the way, conventional infrared radiation burners are generally constructed as shown in FIG.

That is, a burner plate (c) as a porous infrared radiator is fitted into the tip opening of a chamber (b) which is connected to the combustion mixed gas supply pipe (a+), and the burner plate (c) is a porous infrared radiator. The burner grate (c) was configured to radiate infrared rays from its surface by burning a combustion mixture gas to make the burner grate (c) red-hot.

However, with the above conventional configuration, in order to maintain good combustibility, the surface load of the burner brake (c) can only be reduced to about 5φ at most, and the surface temperature of the tab 9 can only be reduced to about 600°C. and thus require relatively large amounts of gas input, as well as
As mentioned above, since the surface temperature of (6) is high-temperature radiation, the radiated infrared rays have relatively short wavelength components, and the long wavelength components (far infrared rays) The disadvantage was that the rate was low.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to maintain good combustibility with a relatively small amount of input, while also being able to radiate 1 ft'l'l with a low washout. By doing so, we aim to provide a burner with high far-infrared radiation efficiency.Hereinafter, first, embodiments of the far-infrared radiation burner according to the present invention will be described.

2 and 3 show a basic embodiment of the present invention, in which a tip opening of a sheet metal chamber (2) connected in communication with a supply pipe (1) for a mixed gas of fuel gas and combustion air, A burner body (A) is constructed by fitting a burner plate (5) constructed by embedding and supporting an infrared radiator (3) made of a porous ceramic board or the like in a heat-insulating plate (4) with a larger area. An annular spacer (6) made of a heat insulating material is provided over the entire front (above) of the %I burner distribution plate (5).
A secondary radiator (7) made of a glass fiber plate or the like is provided with an appropriate gap (S) provided by the radiator.

In the figure, (8) is an annular heat insulating material, (9) is a sheet metal edge cap member, and αq... is the spacer (6).
.

This is a bolt and nut member for assembling the secondary radiator (7) and cover member (9) to the tip flange (2a) of the chamber (2). Furthermore, aυ is a mixed gas distribution plate disposed within the chamber (2), and is provided with a large number of small holes (lla).

Moreover, (2) is an igniter.

In the burner plate (5), an infrared radiator (3
) are distributed over the entire heat insulating plate (4) (8 in this case) infrared radiator parts (3a).
The secondary radiator (7) located in front of the secondary radiator (7) can be heated as uniformly as possible in its entirety. In addition, these multiple infrared radiators (8a
)... are arranged in a continuous manner so that the fallen part (8 &) also comes into contact with at least one other part (8a), so that good flame transfer occurs at the time of ignition. It is. In addition, these infrared radiator parts (3
The number and arrangement of a) are not limited to those shown in FIG. 3, but may be as shown in FIG. 4, for example.

Thus, the total area of the secondary radiators (7) facing the burner plate (5) is equal to the total area of the infrared radiators (3),
It is constructed so that the area υ is also larger (usually 2 to 3 times larger).

Next, the operation of the far-infrared radiation burner configured as described above will be explained.

When the surface of one infrared radiator portion (3a) in the shibana plate (5) is ignited by the igniter 0'4,
(all continuously arranged infrared radiators) 11S minutes (8
a)..., the mixed gas burns on the entire surface of the infrared radiator (3) with a surface load of about 5 to 6 tons, and the infrared radiator (3) has a relatively high temperature ( Approximately 600-7
00°C) and radiates infrared rays toward the secondary radiator (7). Furthermore, stable and good combustion conditions on the surface of the -1 projectile (3) in the infrared rays can be achieved with a smaller amount of gas input than in the conventional structure. The reason is that there is a secondary radiator (
7), the reflected heat thereby maintains the surface of the infrared radiator (3) at a high enough temperature to exhibit good combustibility even if the amount of combustion is relatively small. It is from. On the other hand, the secondary radiator (7) is heated by the combustion heat (radiated infrared rays and convection heat in the gap (S)) in the infrared radiator (3), and the area of the secondary radiator (7) is 3) Because it is thicker than the above, it is maintained at a relatively low temperature (approximately 400 to 500°C). In other words, the surface load on this secondary radiator (7) is approximately 2 to 3 Jcd. According to experiments, a far-infrared emissivity of approximately 45 cm has been obtained.

FIG. 5 shows another embodiment in which a wire mesh 03 is interposed on the back side of the secondary radiator (7) so that the secondary radiator (7) can be heated more uniformly.

No. 6 and 1 show another embodiment, in which the spacer (6) and the wire mesh (1:9) are compared to the one shown in FIG.
A mesh Q4 made of glass fiber between
and spacers θ are interposed so that the secondary radiator (7) is heated by the sea waste.

Figures 7 and 8 show still other embodiments. That is, in this embodiment, as shown in FIG.
7) is not suitable for use with the surface facing up and down, and in burner plate 1- (5), the infrared rays 11i1J+1 body (force) is deflected downward from the adiabatic splitting plate (4 inches). With this configuration, the upper part of the gap (S) becomes highly humid due to convection heat, and a part of the secondary radiator (7) is unevenly heated to the beach. You can effectively prevent Toto.

To summarize, the far-infrared radiant burner according to the present invention includes a secondary radiator having a larger area than the infrared radiator, located in front of the infrared radiator in a burner body having an infrared radiator, with an appropriate gap. It has the characteristic of being a set-up.

The unique functions and effects exhibited by the above characteristic configuration are as follows.

That is, as detailed in the explanation of the embodiment, by distributing the secondary radiator in front of the infrared radiator, even if the amount of combustion on the surface of the infrared radiator is reduced, the secondary radiator The reflected heat from the infrared radiator can maintain the surface temperature of the infrared radiator at a high enough temperature to exhibit good combustibility. In addition, since the area of the secondary radiator is larger than the area of the infrared radiator, the surface load and temperature of the secondary radiator are smaller than those of the infrared radiator. This also made it possible to radiate a large amount of far-infrared rays due to low-temperature radiation.

[Brief explanation of drawings]

FIG. 1 is a side sectional view for explaining an infrared radiation burner with a conventional configuration. 2 to 8 show the seed male side of the far-infrared radiation burner according to the present invention, FIG. 2 is a side sectional view showing a basic embodiment, FIG. 3 is an exploded perspective view thereof, and FIG. 5 is a side sectional view of another embodiment, FIG. 6 is a side sectional view of another embodiment, and FIG. 7 is a side sectional view of yet another embodiment. , and FIG. 8 is a front view of the main part thereof. (3) Infrared radiator, (all) Infrared radiator portion, (7) Secondary radiator, (A) Burner body, (S) Gap. Agent Patent Attorney Osamu KitamuraTR5 Figure 6 Figure 7

Claims (1)

[Claims] ■ A burner main body (A) having an infrared radiator (3) has an infrared radiator (3) in front of the infrared radiator (3), with an appropriate gap (S) in front of the infrared radiator (3). Large area secondary radiator (
7) A far-infrared radiation burner. (2) The far infrared rays according to claim (2), characterized in that the infrared ray radiator (3) is composed of a plurality of infrared ray radiator parts (88) distributed mutually. Radiant burner. (4f The infrared radiator portion (8a)... is such that any portion (8a) is connected to at least one other portion (3&).
The far-infrared radiant burner according to claim 1, wherein the far-infrared radiant burner is arranged so as to be in contact with the far-infrared radiation burner.