JPS62196518A - Gas burner - Google Patents

Abstract

PURPOSE:To be able to increase rapidly a load at a burning chamber by a method wherein a primary flame hole is placed at the bottom of a groove and secondary flame holes are placed at both side parts of said groove and the secondary flame hole at one side part and the secondary flame hole at the other side part are placed in such a direction that mixed gas streams spouted from both the secondary flame holes are collided each other. CONSTITUTION:At the extension part of the minimum width part of a throttled flow path 12 formed between members 7a, 7b for forming a fuel gas flow path, the whole of a primary flame hole 5 is placed and secondary flame holes 6a, 6b are not allowed to be placed. After fuel gas and burning air are thoroughly mixed by the action of the path 12, mixed gas is preferentially supplied to the hole 5 and also supplied to the holes 6a, 6b. Mixed gas spouted from the holes 5, 6a, 6b into a groove 4 is burnt and high load burning is stably carried out by the mutual collision of the mixed gas spouted from the holes 6a, 6b. Thereby, load at a burning chamber is able to be rapidly increased.

Description

Detailed Description of the Invention [Field of Industrial Application] This Takamei has a first burner port and 982 burner ports that inject a mixed gas of fuel gas and combustion air into the combustion section, which are arranged in a large row. The present invention relates to a gas burner provided on a burner port forming member in a state in which rows of second burner ports are arranged on both sides of the row of first burner ports.

[Conventional technology]

Conventionally, as shown in FIG. 4, the flame outlet forming member protrusion is bent into a shape in which the center in the width direction protrudes toward the combustion side, and a 4s1 flame outlet ( c) are arranged in parallel, and second burner ports (24a) and (24b) are arranged in parallel near the base end of the protruding central portion (21a), respectively, and second burner ports IU4a) are arranged in parallel.
, (U4b) is provided to guide the gas from the protruding center part (21a) to the tip side, and the fuel gas from the zero governor tV3) and the combustion air from the fan (Wake) are mixed in the mixer (B). Pour the mixed gas into the first flame port and the second flame port (2
I# was configured to supply to 4ac (U4b).

[Problem that the invention seeks to solve]

However, the first flame opening and the second flame opening (24a), (2
4b, If the ejection speed of the mixed gas from 1 is increased, the flame tends to lift or blow out, and the combustion chamber load cannot be increased too much (approx. The installed equipment had become larger and there was room for further improvement.

An object of the present invention is to dramatically increase the combustion chamber load through simple and rational modification.

[Means for solving problems]

A characteristic configuration of the present invention is that a flame port forming member in which a first flame port and a second flame port facing the combustion section are arranged side by side in a row is formed so that a groove serving as the combustion section 1!7I is formed. , the first burner port is arranged at the bottom of the groove, and the second burner port is arranged on each side of the Jinquji groove, and a second burner port on the negative side and a second burner port on the other side are arranged on each side of the second burner hole. By arranging the ejected mixed gas in a direction that can avoid collision, its effects are as follows.

[For production]

In other words, when the mixed gas ejected from the second flame port on one side of the groove collides with the mixed gas ejected from the second flame port on the other side, even if the mixed gas is ejected from the second flame port at high speed, , because the combustion continues stably at the collision location, and because the stable flame from the collision exists in the direction of the mixed gas jetting out from the 11th burner port, the flame holding effect causes the mixture gas to jet out from the 1st burner port. The mixed gas burns stably despite high-speed ejection, and as a whole, flame lift and blowout are less likely to occur, reducing the combustion chamber load by approximately 1.
It is now possible to make it j times larger than before.

〔Effect of the invention〕

As a result, the load on the combustion chamber can be dramatically reduced by simply improving the shape of the flame port forming member and the arrangement of the first and second flame ports, which is a simple and practical means with almost no economic burden. As a result, equipment incorporating gas burners, such as water heaters and space heaters, can now be made extremely compact.

〔Example〕

Next, an example will be shown with reference to FIGS. 1 and 2.

A mixing chamber t31 tl- for mixing fuel gas and combustion air is formed by a curved sheet metal flame opening forming member (11) and side plates (2) on both ends thereof, and a flame opening forming member (A groove (4) serving as a combustion part is formed on the outside of the 1+, and three rows of first flame ports (5) communicating with the mixing chamber (3) are formed at the bottom of the groove (4). Second flame holes L6a) and (6b), which have a slightly smaller diameter than the opening (5) and communicate with the mixing chamber i31K, are formed in a line on each side of the groove (4), and
The second flame port (6a) on one side and the second flame port (6b) on the other side.
) are arranged symmetrically and facing the direction in which the ejected mixed gas collides.

Inside the mixing chamber (3), there is a pair of round gutter-shaped fuel gas flow path forming S materials (7@) extending in the longitudinal direction of the groove (4).

(7b) in cooperation with the side wall (1a) to connect the fuel gas flow path (
8), and connect a flow control valve (fuel gas supply pipe with Vθ) to the fuel gas flow path (8) with a nozzle (9) penetrating through the force side plate (2), Fuel gas flow path forming member L7a (q'o) with the discharge port (l) facing the opposite side from the first and second flame ports (f+l, (6a), (t3b)), and , fans (F) 1k, which are arranged in the longitudinal direction of the grooves (4) and supply combustion air under pressure;
Operate the air volume adjustment damper (■2) to open the mixing chamber (3).
1 and 4PI2 flame ports (5), (6aJ, (6b) are connected to the opposite side.

The throttle flow path 0''4 formed between the fuel gas flow path forming members C7a and C7b is extended by the extension S of its minimum width (as shown by the imaginary line, the entire first flame port (5) is entered). The second flame port (6 toge, (6b) is arranged so that it does not enter, and the fuel gas and combustion air are thoroughly mixed by the action of the throttle flow path (I), and the mixed gas is mixed with the first flame port (5). ) and the second
Also distributed to Flame Ro L6a C (6b),! 1st and 2nd flame opening (
The mixed gas ejected from 61, C6a), +, [b) into the groove (4) is combusted, and the flame RO C6a C (-6L+
) The configuration is such that highly negative combustion can be performed stably by collision of the mixed gas ejected from the combustion chamber.

[Another example]

Next, another embodiment will be described.

The fuel gas can be selected from city gas, large gas, propane gas, or any other suitable fuel gas, and the air for combustion and combustion may be oxygen-enriched.

The shape and size of the first flame port (5) and the second flame ports (6a), (6b) can be selected as appropriate, and they may be arranged in parallel in a large number of rows or in multiple appropriate rows. Further, the dimensional relationship between the first flame port (5) and the second flame port L6a, L6b) can be set appropriately.

The shape of the S material i1) for forming a flame port is, for example, as shown in Fig. 1i88 (
As shown in Figure 8 (b), the groove (4) may be bent to have a rounded cross-sectional shape, or as shown in Figure 8 (b).
) is bent into a triangular horizontal wh shape,
Other Danhenshi perform 'il Noh.

A gas burner may be formed using only seven flame port forming members 11), or may be formed by arranging a plurality of them.

Gas burners can be used in household appliances such as water heaters, hot water heaters, closed stoves, industrial equipment such as boilers, and any other applications.

[Brief explanation of drawings]

Figures 1 to 8 show examples of non-explosion cases, with Figure 1 being a perspective view and j! Figure 2 is a cross-sectional view, and Figure 8 (a). (B) is a cross-sectional view of each different embodiment. FIG. 4 is a partially cutaway perspective view of a conventional example. (11... Flare-shaped expropriation member, (4)...
・Groove, (5)...First flame opening, C6i, l, L6
b)...Second flame opening. Agent: yP Landlord Osamu Kitamura (and 7 others)

Claims (1)

[Claims] [1] A first flame port (5) and second flame ports (6a), (6b) that eject a mixed gas of fuel gas and combustion air into the combustion section.
and the second flame ports (6a), (6b) are arranged side by side in a row, and on both sides of the row of the first flame ports (5).
A gas burner is provided in a flame port forming member (1) in a state where rows of flame holes are arranged, and the flame port forming member (1) is formed so that a groove (4) serving as the combustion part is formed. , the first flame port (5) is arranged at the bottom of the groove (4), and the second flame port (5) is arranged at the bottom of the groove (4).
Flame ports (6a) and (6b) are provided on both sides of the groove (4), respectively, and a second flame port (6a) on one side and a second flame port on the other side are provided.
A gas burner in which the flame port (6b) is arranged in the direction in which the ejected mixed gas collides with each other. [2] The gas burner according to claim 1, wherein the first flame ports (5) are arranged in a plurality of rows. [3] The second flame openings (6a) and (6b) are arranged in a plurality of rows on each side of the groove.
] or [2].