JPS63180006A - Slim type combustion apparatus - Google Patents

Abstract

PURPOSE:To obtain clean and stable complete combustion by installing a combustion plate having a flame hole part with V-shaped cross section and flame holding plates at a vertical type ring-shaped burner. CONSTITUTION:Fuel and air supplied from a fuel supply pipe 6 and an air supply pipe 7 form uniform mixed gas in a mixing chamber 8; the gas is spouted from the V-shaped flame part 10 of a combustion plate 11 placed in a vertical type ring-shaped burner body, ignited with an ignitor 15, and completely burnt as the primary and secondary flames 16, 17. Since the faces on the part 10 are opposed each other by the V-shaped constitution of the plate 11, the primary and secondary blue flames are firmly held in their flame condition and the partition action of the combustion flames caused by induced draft or diffusion force does not occur. Accordingly, a slim type burner of uniform flames without pulsation, lift, and generation of soot and foul odor is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to thinning of a combustor by combustion of gaseous or liquid fuel;
This relates to miniaturization, improved characteristics, quality, and cost reduction.

2. Description of the Related Art Conventionally, as shown in FIG. Either the linear burner body 1 is housed in a thin heat exchanger 2, or as shown in FIG.
Generally, the combustion flame 4/ of a cylindrical burner body 3 for heating or cooking stove is formed in the shape of an outer flame, or the combustion flame 44' (not shown) is formed in the shape of an inner flame. It is something that This combustion device had a box-shaped or cylindrical heat exchanger 25 arranged so as to protect these burner bodies 13 from their outer peripheries.

Problems to be Solved by the Invention However, in the above configuration, firstly, secondly,
In the conventional example similar to the one shown in the figure, although the combustor 1 is linear and thin, in order to simply increase or reduce the output capacity (i.e., increase or decrease the load), the burner length must be proportional to the length of the burner. It was impossible to multiply the length by a certain coefficient. Furthermore, since the combustion flame spreads only in one direction, upward, the heat transfer area of the heat exchanger 5 located at the bottom of the combustor 1 cannot be effectively utilized, and there is a limit to miniaturization.

Moreover, uneven temperature distribution occurs in the upper and lower portions, and countermeasures against thermal deformation are required. On the other hand, since it is a linear type, the combustion flames at the left and right ends often become long flames or lift, which often causes incomplete combustion. Furthermore, it is difficult to form a sealed structure on the left and right ends, and processing to prevent thermal deformation is difficult and costly, and as thinner and more compact devices are required in the future, there are problems such as it is not the best method for practical use. was.

On the other hand, in the conventional example shown in FIG. 3, the diameter of the burner body 3 and the size of the combustion flame (outward flame shape) 4' immediately result in the minimum diameter of the heat exchanger 5, making it impossible to achieve a thinner structure. Further, it is impossible to arrange the burner body 5 horizontally by 180 degrees. On the other hand, even if the burner body 3 is constructed so that the combustion flame 4' shown in FIG. Was.

Furthermore, if the burner body 3 in Fig. 3 is relocated horizontally by 180 degrees, the flame holding condition of the combustion flame 4' is worse than when it is not placed horizontally, and in particular, drafts occur above and below the combustion flame 4', In the part shown in FIG. 1, the combustion flame 4' becomes shorter and the combustion flame 4' separates to the left and right of the central axis of the burner body 3, and a lift phenomenon and a pulsating flame occur, resulting in incomplete combustion. On the other hand, the combustion flame 4' in the upper part is combined with the combustion flame 4' in the lower part, and the combustion flame 4' is elongated, and due to the lack of air, yellow scorch etc. are generated, which also promotes incomplete combustion and becomes a problem.

Therefore, there has been a problem in that it is difficult to simply rearrange the conventional burner body 3 horizontally and realize a thinner structure.

The present invention solves such conventional problems, and aims to reduce the cost while improving the combustion characteristics of the combustion device, making it thinner, smaller, and improving its characteristics and quality.

Means for Solving the Problems In order to solve the above problems, the combustion apparatus of the present invention includes a mixing chamber having a fuel supply pipe and an air supply pipe, and a burner having left and right walls of the mixing chamber extending outward. It has a vertical annular configuration consisting of a narrow V-shaped combustion plate in cross section and a plurality of flame holes all around the outer wall of the body.

Effect The present invention has a vertical annular shape with a V cross section by the above configuration.
Since the flame holes drilled in the letter-shaped combustion plate are almost opposite to each other, the premixed gas ejected from the flame holes forms a thin annular combustion flame around the entire circumference of the combustion plate and burns. At the same time, the combustion flames face each other and the short flame stabilizing plates placed on the left and right sides above the combustion plate further promote flame stabilizing effect and short flame length. The annular flame can be burned more cleanly and completely. With this configuration, it is possible to realize ultra-thinness, miniaturization, and enlargement of T, D, and R, as well as cost reduction.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. In FIG. 1, reference numeral 6 denotes a fuel supply pipe, the tip of which is branched into one or more parts 6' and opened to the outside of the air supply cylinder 7.
It faces mixing chamber 8. The left and right walls of the mixing chamber 8 are burner bodies 9.
The combustion plate 11 is formed into a vertical annular shape, and a combustion plate 11 having a plurality of flame holes 10 and a narrow cross section having a substantially V-shape is integrated at the left and right ends thereof. Therefore, the flames formed in the left and right flame holes diffuse upward while facing each other, thereby further promoting flame holding power, mixing, and combustion. 12 is a short flame stabilizing plate attached to the left and right walls of the heat exchanger 14 on one side, and the other side is a bent part 12 attached above the combustion plate 11.
', which is narrower than the combustion plate 11 and narrowed inward toward the flame hole. Reference numeral 13 denotes a mixing pressure equalizing plate made of a wire mesh or the like and placed in the mixing chamber 8. 14 is a narrow box-shaped heat exchanger that surrounds the inner body 9 and has an exhaust port (not shown) in a part thereof, and the other part is sealed.

15 is an igniter; 16 is a flame formed in the flame hole portion 10;
17 is the second flame.

Although the above description of the configuration is about a gas combustion device, in the case of burning liquid fuel, a cylindrical electric heater (not shown) that surrounds the fuel supply pipe 6 may be provided in a part of the fuel supply pipe 6. If the temperature is controlled using a temperature sensor (not shown), liquid combustion can be easily combusted. Further, the air supply cylinder 7 is connected to a blower (not shown).

In the above configuration, when the fuel is supplied from the fuel supply pipe 6 and the amount of air, for example, for a full-time system, is supplied from the air supply tube 7, a homogeneous mixed gas is generated in the mixing chamber 8, and the vertical annular burner is Mixed gas blows out from the flame hole 10 of the V-shaped combustion plate 11 in the body 9, and when the mixed gas is ignited with the igniter 15, V
On the combustion plate 11 of the letter-shaped annular flame hole part 10, annular gastritis-like flames 16 and 2 flames 17 are formed for complete combustion.

Particularly at this time, due to the V-shaped configuration of the combustion plate 11, the flame hole portion 10 has the annular blue flame (
-Flames 16 and 2 flames 17) are strongly held, and there is no split effect of the combustion flame that tries to spread in the horizontal and vertical directions due to the draft-inducing effect of combustion, and the thin annular structure is evenly distributed, causing pulses and lift phenomena. This allows stable, complete combustion with no soot or odor, and an ultra-thin burner body.

Effects of the Invention As described above, the thin combustion device of the present invention provides the following effects.

(1) The burner body has a thin vertical annular structure, the combustion plate has a flame hole with a narrow V-shaped cross section, and the short flame stabilizing plate is placed above the combustion plate. We were able to create a burner body that is clean, thin, annular, and extremely stable against drafts and disturbances and achieves complete combustion.

(2) Since the burner body has a vertical annular configuration, ignition is reliable and the flame holding power is strong, so the TDR is wide and soot and odor due to incomplete combustion during ignition and extinguishing are less likely to occur.

(3) Also, compared to the conventional method, the two flames are shorter, and the load factor of the flame hole relative to the burner length can be several times higher (especially 3.14 times compared to the linear method), resulting in higher load and thinner design. It becomes more compact.

Furthermore, since it is a vertical annular structure burner, it is possible to develop unique products and has great practical effects.

(5) Furthermore, the configuration is simple, and compared to the linear type, it is easy to process and is not only low-cost, but also the temperature distribution of the burner body is uniform in the top and bottom, making it difficult for thermal deformation to occur, improving durability. The practical effects of improving quality are significant.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of a main combustion part in an embodiment of the present invention, and FIGS. 2 and 3 are longitudinal cross-sectional views of a conventional main combustion part. 6... Fuel supply pipe, 7... Air supply cylinder, 8... Mixing chamber, 9... Burner body, 1
0. River...flame hole part, 11... combustion plate, 12...
...Short flame-retaining plate. Name of agent: Patent attorney Toshio Nakao and 1 other person6-
Store sub-supply pipe 8-b Sumire 11-11 Demand Corpse I? -11 Tanababikyo Kei Figure 2 Figure 3

Claims (1)

[Claims] A mixing chamber equipped with a fuel supply pipe and an air supply cylinder, and a burner body with a narrow V-shaped cross section having a plurality of flame holes all around the outer wall of a burner body that extends the left and right walls of the mixing chamber outward. A thin combustion device consisting of a combustion plate.