CN109424955B

CN109424955B - High-efficiency burner

Info

Publication number: CN109424955B
Application number: CN201710777194.XA
Authority: CN
Inventors: 邵海忠; 吴丽波; 徐强; 茅忠群; 诸永定; 郑军妹
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2017-09-01
Filing date: 2017-09-01
Publication date: 2024-01-16
Anticipated expiration: 2037-09-01
Also published as: CN109424955A

Abstract

The utility model provides a high-efficient combustor, a serial communication port, including base (1) and burning seat (2), inside secondary air passageway (11) that has formed gradually from the center to the edge of base (1), first annular mixing chamber (12) and second annular mixing chamber (13), burning seat (2) include main part (21) and extend extension portion (22) that set up in main part (21) edge by main part (21) radial, preceding main part (21) are located on base (1) and the edge has been seted up inner ring fire hole (27), preceding main part (21) are inside to be formed with secondary air port (211) from the center to the edge in proper order, first annular region (212) and second annular region (213), preceding main part (21) are located the outside of secondary air port (211) and are equipped with baffle portion (23), form a plurality of air side delivery outlet (231) between this baffle portion (23) and main part (21) up end. Compact structure, secondary air supply is abundant, and the burning is more efficient.

Description

High-efficiency burner

Technical Field

The invention relates to a burner, which is applied to a gas stove.

Background

The conventional burner of the household gas cooker is provided with an inner ring fire (small fire) and an outer ring fire (big fire), and in order to ensure the normal functions of the cooker, an inner ring fire cover and an outer ring fire cover are made into two independent parts.

In the design of household kitchen range burner, the geometric position relation of inner ring fire lid and outer ring fire lid is very important, and this can directly influence the emission of flue gas, because the position restriction of inner ring fire lid and atmospheric burner part mix (primary air coefficient is less than 1) characteristics, the additional external supply of secondary air that needs of inner ring fire, at present conventional mode is the increase air mixing chamber part, on the one hand improves the miscibility of gas and primary air, on the other hand is the trompil of air mixing chamber side, sets up the secondary air passageway and supplies the air for the inner ring.

However, the introduction of parts of the air mixing chamber also increases the cost, the air mixing chamber is difficult to clean after long-term use, the user experience is poor, and a newly added secondary air channel in the air mixing chamber can only be supplied to the outer flame of the inner ring, and the inner flame of the inner ring is not supplied with air, so that the smoke emission is still higher and needs to be improved; in addition, the blockage of the fire hole by the soup is a main fault factor of the current burner, and the blockage of the fire transmission groove by the soup can influence the fire transmission performance, so that the small fire cannot cut the big fire normally.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a high-efficiency burner with compact structure aiming at the state of the art.

The technical scheme adopted for solving the technical problems is as follows: a high-efficiency burner is characterized by comprising

The base is internally provided with a secondary air channel, a first annular air mixing cavity and a second annular air mixing cavity from the center to the edge in sequence, and a first air inlet channel communicated with the first annular air mixing cavity and a second air inlet channel communicated with the second annular air mixing cavity are laterally arranged; and

the combustion seat comprises a main body part and an extension part radially extending from the main body part and arranged at the edge of the main body part, wherein the main body part is arranged on a base, an inner ring fire outlet is formed at the edge of the main body part, a secondary air port, a first annular area and a second annular area are sequentially formed from the center to the edge of the main body part, the secondary air port is matched with the secondary air channel, the first annular area is matched with the first annular air mixing cavity, the second annular area is matched with the second annular air mixing cavity, a baffle plate part is arranged at the outer side of the secondary air port, and a plurality of air lateral output ports are formed between the baffle plate part and the upper end surface of the main body part; the inner cavity of the extension part is hollow, the inner end of the extension part penetrates through the second annular area and is communicated with the first annular area, and the outer end edge of the extension part is provided with an outer ring fire outlet hole; the inner ring fire outlet holes are arranged above the roots of the extension parts and are positioned in the areas between the roots of the adjacent extension parts.

Further, a flame stabilizing slot is arranged below at least one of the inner ring fire outlet holes and the outer ring fire outlet holes.

The extension part gradually reduces from outside to inside, and the upper end surface of the extension part gradually reduces from outside to inside. The upper end face of the main body part is gradually inclined from the edge to the center. The design of the inclined plane ensures that the soup flows from outside to inside along the inclined plane, and further, the fire hole is not blocked.

The upper end surface of the extension part is radially provided with a fire transfer groove, and the edge of the outer port of the fire transfer groove is protruded from the upper end surface of the extension part. Can prevent soup from flowing into the fire transmission groove to influence fire transmission.

One side of the main body part is provided with a positioning ring, and the positioning ring is provided with an ignition needle.

The number of the second air inlet channels is two, and the number of the first air inlet channels is one and is positioned in the middle of the two second air inlet channels.

The air side outlet is arranged close to the inner ring fire hole. Secondary air can be effectively supplied to ensure sufficient combustion.

Compared with the prior art, the invention has the advantages that: the inner ring fire cover and the outer ring fire cover are integrally formed on the combustion seat and are arranged in an up-down staggered way, so that secondary air can be simultaneously supplied to the inner ring and the outer ring without mutual interference; the outer ring fuel gas path trend in the combustion seat is firstly mixed in the middle main body part and then is diffused to the surrounding extension part, and as the diffused path is longer, the mixing time of fuel gas and primary air is increased, the uniformity of a mixed gas speed field is ensured, the mixing uniformity of fuel gas and air is generally improved, the combustion seat simultaneously acts as a gas mixing chamber and a fire cover, the part of the gas mixing chamber is omitted, the problem that the gas mixing chamber is difficult to clean is avoided, and a plurality of secondary air guide channels are designed in the middle of the fire cover, and correspond to the distribution of inner ring fire holes; the air side direction delivery outlet can supply the inboard secondary air of inner ring fire hole fast, and inner ring fire hole and outer loop fire hole have the difference in height simultaneously, and the existence of difference in height makes and has formed new space between inner ring outside and the outer loop, and this newly increased space just can be as the supply channel of external secondary air to the inner ring, ensures that inner ring fire hole has sufficient air supply.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment.

Fig. 2 is an exploded view of an embodiment.

FIG. 3 is a schematic view of the combustion seat of FIG. 2 from another perspective.

Fig. 4 is a perspective cross-sectional view of an embodiment.

Fig. 5 is a perspective cross-sectional view of another view of an embodiment.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 5, the high-efficiency burner in this embodiment includes a base 1 and a combustion seat 2, in which a secondary air channel 11, a first annular air-mixing chamber 12 and a second annular air-mixing chamber 13 are formed in the base 1 in sequence from the center to the edge, a first air inlet channel 15 connected to the first annular air-mixing chamber 12 and a second air inlet channel 14 connected to the second annular air-mixing chamber 13 are laterally provided, specifically, two second air inlet channels 14 are provided, and the first air inlet channel 15 is one and is located in the middle position of the two second air inlet channels 14.

The combustion seat 2 comprises a main body 21 and an extension part 22 radially extending from the main body 21 and arranged at the edge of the main body 21, wherein the main body 21 is arranged on the base 1, an inner annular fire hole 27 is formed at the edge, a secondary air port 211, a first annular area 212 and a second annular area 213 are sequentially formed from the center to the edge in the main body 21, the secondary air port 211 is matched with the secondary air channel 11, the first annular area 212 is matched with the first annular air mixing cavity 12, the second annular area 213 is matched with the second annular air mixing cavity 13, a baffle plate part 23 is arranged outside the secondary air port 211 in the main body 21, and a plurality of air lateral output ports 231 are formed between the baffle plate part 23 and the upper end surface of the main body 21; the air side outlet 231 is disposed adjacent the inner ring fire hole 27. The inner cavity of the extension portion 22 is hollow and the inner end penetrates through the second annular region 213 to be communicated with the first annular region 212, and the outer end edge of the extension portion 22 is provided with an outer ring fire outlet 24.

The inner ring flame holes 27 are opened at positions above the root portions of the extension portions 22 and are located in regions between the root portions of adjacent extension portions 22.

Flame stabilizing slits 28 and 25 are respectively arranged below the inner ring fire hole 27 and below the outer ring fire hole 24.

The extension 22 gradually decreases from outside to inside, and the upper end surface of the extension 22 gradually decreases from outside to inside. The upper end surface of the main body 21 is inclined gradually from the edge to the center. The upper end surface of the extension portion 22 is radially provided with a flame transfer groove 26, and the outer port edge of the flame transfer groove 26 protrudes from the upper end surface of the extension portion 22.

A positioning ring 291 is provided on the body 21 side, and the ignition needle 3 is provided on the positioning ring 291. The other side is provided with a positioning ring 29, and the positioning ring 29 is provided with a thermocouple 4.

Secondary air enters from the bottom of the secondary air channel 11, is blocked by the baffle plate part 23 through the secondary air port 211, and then comes out from the air side outlet, and the secondary air is supplied to the inner ring fire hole 27.

Meanwhile, the inner ring fire hole and the outer ring fire hole have height difference, and a new space is formed between the outer side of the inner ring and the outer ring due to the existence of the height difference, so that the newly added space can be just used as a supply channel for external secondary air to the inner ring.

Claims

1. A high-efficiency burner is characterized by comprising

A secondary air channel (11), a first annular air mixing cavity (12) and a second annular air mixing cavity (13) are sequentially formed in the base (1) from the center to the edge, and a first air inlet channel (15) communicated with the first annular air mixing cavity (12) and a second air inlet channel (14) communicated with the second annular air mixing cavity (13) are laterally formed; and

a combustion seat (2) comprising a main body (21) and an extension part (22) radially extending from the main body (21) and arranged at the edge of the main body (21), wherein the main body (21) is arranged on a base (1) and is provided with an inner annular fire hole (27) at the edge, a secondary air port (211), a first annular region (212) and a second annular region (213) are sequentially formed from the center to the edge in the main body (21), the secondary air port (211) is matched with the secondary air channel (11), the first annular region (212) is matched with the first annular air mixing cavity (12), the second annular region (213) is matched with the second annular air mixing cavity (13), the main body (21) is provided with a baffle plate part (23) at the outer side of the secondary air port (211), and a plurality of air lateral output ports (231) are formed between the baffle plate part (23) and the upper end surface of the main body (21); the inner cavity of the extension part (22) is hollow, the inner end of the extension part penetrates through the second annular region (213) to be communicated with the first annular region (212), and the outer end edge of the extension part (22) is provided with an outer ring fire outlet hole (24); the inner ring fire outlet holes (27) are formed in the upper positions of the roots of the extension parts (22) and are positioned in the areas between the roots of the adjacent extension parts (22).

2. A high efficiency burner as claimed in claim 1, wherein at least one of the lower part of the inner ring flame exit holes (27) and the lower part of the outer ring flame exit holes (24) is provided with flame stabilizing slits.

3. The high efficiency burner as claimed in claim 1, wherein said extension (22) is tapered from the outside to the inside and wherein an upper end surface of said extension (22) is tapered from the outside to the inside.

4. A burner according to claim 1, characterized in that the upper end face of the main body portion (21) is inclined gradually from the edge to the center.

5. The high-efficiency burner according to claim 1, characterized in that the upper end surface of the elongated portion (22) is radially provided with a flame transfer groove (26), and that the outer port edge of the flame transfer groove (26) protrudes from the upper end surface of the elongated portion (22).

6. A burner according to claim 1, characterized in that a positioning ring (291) is provided on one side of the body portion (21), the positioning ring (291) being provided with an ignition needle (3).

7. A high efficiency burner according to claim 1, characterized in that said second air intake passage (14) is one, said first air intake passage (15) being two and being located in a middle position of said two second air intake passages (14).

8. A high efficiency burner according to claim 1, characterized in that the air lateral outlet (231) is arranged close to the inner ring fire outlet (27).