WO2006114063A1

WO2006114063A1 - A gas burner

Info

Publication number: WO2006114063A1
Application number: PCT/CN2006/000959
Authority: WO
Inventors: Guoying Zou
Original assignee: Zhejiang Shuaikang Electric Stock Co., Ltd.
Priority date: 2005-05-20
Filing date: 2006-05-15
Publication date: 2006-11-02
Also published as: CN2791482Y

Abstract

A gas burner is disclosed which includes a fire cover, a flame spraying unit, a base and a gas supply unit. There are a central flame ring, an inner flame ring, and an outer flame ring provided on said flame spraying unit. A central gas mixing chamber is formed in the central flame ring while a central gas mixing tube is provided in said central gas mixing chamber. At least three periphery gas mixing chambers distributed uniformly are formed between said inner flame ring and said outer flame ring, and a periphery gas mixing tube is provided in the central section of each periphery gas mixing chamber. On said base there are provided a central nozzle chamber corresponding to said central gas mixing tube and a periphery nozzle chamber corresponding to said periphery gas mixing tube. On said gas supply unit there are provided a central nozzle corresponding to said central nozzle chamber and a periphery nozzle corresponding to said periphery nozzle chamber. The gas burner according to the invention not only has simple structure and can be machined easily, but also can form uniform flame and large flame in the middle, with three flame rings being used simultaneously or the central flame ring being used alone.

Description

TECHNICAL FIELD The present invention relates to a cooktop, and more particularly to a gas burner.

Background technique:

In the prior art, Chinese Patent No. ZL03241583. 4 discloses a gas burner, which comprises a fire cover, a fire-breathing device, a base and an air intake device, and the fire-breathing device has a central fire ring, an inner fire ring and an outer fire ring. Wherein, a central gas mixing chamber is formed in the central fire ring, and a central gas mixing tube is arranged therein, and two symmetrically distributed peripheral gas mixing chambers are formed between the inner ring and the outer ring, each of the peripheral gas The mixing chamber is provided with a peripheral gas mixing tube on one side, and the base is provided with a central nozzle chamber corresponding to the central gas mixing tube and two peripheral nozzle chambers corresponding to the peripheral gas mixing tube, and a separate The central air passage is provided with a central nozzle corresponding to the central nozzle chamber and a peripheral nozzle corresponding to the peripheral nozzle chamber. The disadvantages of the burner are as follows: 1. Since there are only two peripheral gas mixing chambers, and the peripheral gas mixing tubes in each of the peripheral gas mixing chambers are unilaterally arranged, not only the supply of gas required for peripheral combustion is insufficiently stable. Moreover, the mixed gas can be unevenly flowed in the mixing chamber, thereby causing the flame to be extremely uneven, and the yellow flame phenomenon is likely to occur; 2. The central air passage is separately provided, which not only makes the structure complicated, but also brings the processing A lot of inconvenience has come. At the same time, since the primary air passage of the center is disposed on the base together with the two peripheral nozzle cavities, the secondary air inlet area becomes small, resulting in insufficient intermediate firepower. - Summary of the content:

The present invention is directed to overcoming the deficiencies of the prior art described above, and provides a gas burner having a simple structure, convenient processing, uniform flame, large intermediate firepower, and ingenious control.

According to the present invention, a gas burner includes a fire cover, a fire-breathing device, a base, and an air intake device, wherein the fire-breathing device has a central fire ring, an inner fire ring, and an outer fire ring, and the center fire a central gas mixing chamber is formed in the circle, and the central gas mixing chamber is provided with a central gas mixing tube; at least three uniformly distributed peripheral gas mixing chambers are formed between the inner ring and the outer ring a peripheral gas mixing tube is disposed in a middle portion of each of the peripheral gas mixing chambers, wherein the base is provided with a central nozzle chamber corresponding to the central gas mixing tube, and a pair of the peripheral gas mixing tubes _

uuD / u u U y 5 9 The peripheral nozzle chamber should be provided, and the air intake device is provided with a central nozzle corresponding to the central nozzle chamber and a peripheral nozzle corresponding to the peripheral nozzle chamber.

Wherein the peripheral gas mixing chamber, the peripheral nozzle chamber and the peripheral nozzle are three, and at least one of the three peripheral nozzle chambers and the central nozzle chamber are provided with a narrow passage for the primary air to flow in. .

An elongated passage for primary air inflow may also be provided between the three peripheral nozzle chambers and the central nozzle chamber.

The cross section of the outer ring and the center ring are both circular, and the cross section of the inner ring is "Y", and a plurality of shapes are formed between the inner ring and the center ring. The through grooves into which the secondary air flows are separated from each of the peripheral gas mixing chambers by two pilot grooves and a partition wall.

The base comprises a disc, the central nozzle chamber is formed in the middle of the disc, and has a substantially circular cross section. The top end is provided with an opening for the central gas mixing tube to extend, and the bottom end is provided for a through hole extending into the center nozzle; the peripheral nozzle cavity is symmetrically distributed at an adjacent edge of the disk, and has a substantially trapezoidal cross section, and an opening at the top end for the peripheral gas mixing tube to extend into, The bottom end is provided with a through hole through which the peripheral nozzle extends.

The outer end of the peripheral nozzle chamber is provided with a gap for the primary air to enter, and the space between the two adjacent peripheral nozzle chambers forms a secondary air inlet; the inner side of the top end surface of the central nozzle chamber is symmetrically arranged circumferentially There is a plurality of central positioning ports, at least one of the peripheral nozzle cavities is provided with an external positioning port at the outer end, and the lower surface of the fire-spraying device is provided with three wires cooperating with the central positioning port and the outer positioning port. The ribs, and the bottom end faces of the three ribs are in contact with the peripheral surfaces of the peripheral nozzle cavity, the central nozzle cavity and the elongated channel.

The central positioning raft has three sections, each of which is curved; the outer periphery of the central nozzle chamber is further provided with an ignition device and a fire extinguishing protection device.

The air intake device includes a peripheral nozzle air supply pipe and a central nozzle air supply pipe which are independent from each other; the peripheral nozzle air supply pipe has a "Y" shape, which is formed by three tubular bodies intersecting and communicating, the center The nozzle air supply pipe has a "one" shape, which intersects but does not communicate with the middle portion of the "Y" shaped peripheral nozzle air supply pipe. The peripheral nozzles of u / U y are distributed at three ends of the peripheral nozzle air supply pipe, the outer nozzle of the outer nozzle is provided with an air inlet, and the other ends are closed by a plug; The nozzle is disposed at an inner end of the central nozzle air supply pipe, and the outer end of the central nozzle air supply pipe is provided with an air inlet, and the inner end is closed.

The fire cover comprises a central fire cover and an outer fire cover, and the outer fire cover is composed of an outer fire cover decorative plate and an outer fire cover pressure plate.

A gas burner provided in accordance with the present invention has the following advantages over the prior art: First, the present invention designs three uniformly distributed peripheral gas mixing chambers, and at the same time, a peripheral gas mixing tube is disposed in the middle of the mixing chamber. The utility model can not only make the supply of the gas required for peripheral combustion more stable, but also make the mixed gas flow evenly in the mixing chamber, thereby avoiding the gas mixing unevenness in the gas mixing chamber far away from the gas mixing tube region in the prior art, thereby ensuring The flame is uniform, and the yellow flame phenomenon does not occur as in the prior art.

Secondly, the present invention skillfully provides three narrow passages between the peripheral nozzle chamber and the central nozzle chamber to replace the central primary air passage separately provided in the prior art, which is not only simple in structure, convenient in processing, but also advantageous in increasing the number of times. The entrance area of the air makes the middle firepower large.

Finally, the invention has independent peripheral nozzle air supply pipe and central nozzle air supply pipe, which can realize the use of the burner three times of fire at the same time, or can be used only for the central fire alone, thereby being more convenient to control.

BRIEF DESCRIPTION OF THE DRAWINGS:

1 is an exploded perspective view of a gas burner provided in accordance with the present invention;

Figure 2 is a schematic plan view of a gas burner provided in accordance with the present invention;

Figure 3 is a schematic cross-sectional view taken along line A-A of Figure 2;

4 is a schematic bottom view of a gas burner according to the present invention after cutting a peripheral nozzle air supply pipe and a center nozzle air supply pipe;

Figure 5 is a schematic plan view of the base of the present invention;

Figure 6 is a schematic bottom view of the fire-breathing device of the present invention.

detailed description:

The present invention will be described in detail below with reference to the embodiments given in the accompanying drawings: Referring to Figures 1 to 6, a gas burner according to the present invention includes a fire cover 1, a fire-breathing device 2, a base 3 and an air intake device 4; the fire cover 1 includes a central fire cover 11 and an external fire. The outer fire cover is composed of an outer fire cover decorative plate 12 and an outer fire cover plate 13 having a central fire ring 21, an inner fire ring 22, and an outer fire ring 23, wherein The inner fire ring 22 is located between the central fire ring and the outer fire ring 23, a central gas mixing chamber 24 is formed in the central fire ring 21, and the central gas mixing chamber 24 is provided with a central gas mixing tube. 241; at least three uniformly distributed peripheral gas mixing chambers 25 are formed between the inner ring 22 and the outer ring 23, and a peripheral gas mixing tube 251 is disposed in a middle portion of each of the peripheral gas mixing chambers 25, thereby Not only can the supply of gas required for peripheral combustion be more fully stabilized, but also the mixed gas flows uniformly in the mixing chamber, so that the combustion flame is uniform; the base 3 is provided with a center corresponding to the central gas mixing tube 241 Nozzle chamber 31 and said peripheral gas mixing tube 2 A peripheral nozzle chamber 32 corresponding to 51, the intake device 4 is provided with a central nozzle 41 corresponding to the central nozzle chamber 31 and a peripheral nozzle 42 corresponding to the peripheral nozzle chamber 32.

As described above, as a preferred embodiment of the present invention, the peripheral gas mixing chamber 25, the peripheral nozzle chamber 32 and the peripheral nozzle 42 are all three; the three peripheral nozzle chambers 32 and the central nozzle chamber Between 31, there is a narrow passage 33 for primary air inflow, which is used to replace the central primary air passage in the prior art, which is not only simple in structure, convenient in processing, but also beneficial to increase the inlet area of the secondary air, so that the internal fire The secondary air required for the combustion of the ring 22 and the central ring 21 is sufficiently and stably, so that the middle (i.e., the inner ring 22 and the center ring 21) is fired.

Referring to FIG. 1, the outer fire ring 23 and the central fire ring 21 are both circular in cross section, and the inner fire ring 22 has a "Y" shape in cross section, and the outer shape is beautiful. A plurality of through grooves 29 for inflowing secondary air are formed between the central fire rings 21, and the peripheral gas mixing chambers 25 are separated by two fire guiding grooves 26 and a partition wall 27, and the sides of the fire guiding grooves are And the partition wall separates the peripheral gas mixing chambers into separate parts, and of course, may be separated by a fire escape groove and two partition walls or three fire escape slots.

Referring to Figures 1, 5 and 6, the base 3 includes a disc 34, and the central nozzle chamber 31 is formed in the middle of the disc, and has a substantially circular cross section, and a top end is provided for the center. a port 311 into which the gas mixing tube 241 extends, a bottom hole 312 through which the center nozzle 41 extends; the peripheral nozzle chamber 32 is symmetrically distributed at the adjacent edge of the disk 34, Section generally trapezoidal, top _u / υ uy is provided with an opening 321 into which the peripheral gas mixing tube 251 extends, and a bottom hole 322 through which the peripheral nozzle 42 extends. The outer end of the peripheral nozzle chamber 32 is provided with a notch 323 for primary air to enter, and a space between the two adjacent peripheral nozzle cavities forms a secondary air inlet 324; an inner edge of the top end surface of the central nozzle cavity 31 The circumferential direction is symmetrically provided with three arc-shaped central positioning ports 313, and at least one of the peripheral nozzle chambers 32 is provided with an external positioning port 325 at the outer end, and the lower surface of the fire-spraying device 2 is provided with the center positioning The ribs 313 and the outer positioning jaws 325 are matched with three ribs 28, and the bottom end faces of the three ribs are in contact with the peripheral end surfaces of the peripheral nozzle chamber 32, the central nozzle chamber 31, and the elongated channel 33. The outer periphery of the central nozzle chamber 31 is further provided with an ignition device 314 and a flameout protection device 315. When it is detected that the combustion flame is extinguished, the flameout protection device 315 immediately disconnects the supply of the nozzle gas.

As described above, referring to Fig. 3, when the secondary air II indicated by the double-line arrow flows from under the fire-breathing device 2, it directly supplies the inner ring 22 and the center ring 21; the single-line arrow indicates the primary air I from the fire. When the device flows in below, a portion is supplied to the peripheral nozzle 42 and another small portion is supplied to the center nozzle 41 through the elongated passage 33, thereby ensuring that the central nozzle 41 requires an effective supply of air once, and that the three peripheral nozzles 42 are required once again. The effective supply of air does not interfere with each other; in particular, the space occupied by the primary air supply narrow passage 33 is small, and the structure ensures that the effective area of the secondary air inlet required for the inner ring 22 and the central ring is large.

Referring to FIG. 1 , FIG. 3 and FIG. 4 , the air intake device 4 includes a peripheral nozzle air supply pipe 43 and a central nozzle air supply pipe 44 which are independent of each other, so that the burner can be used simultaneously with three fires, or only The peripheral nozzle air supply pipe 43 is in a "Y" shape, and the three tubular bodies 431 intersect and communicate with each other. The central nozzle air supply pipe 44 has a "one" shape, which is The middle portions of the "Y"-shaped peripheral nozzle air supply pipes 43 intersect but are not in communication. The peripheral nozzles 42 are disposed at three ends of the peripheral nozzle air supply pipe 43. One end of the peripheral nozzle air supply pipe 43 is provided with an air inlet 432, and the other ends are closed by a plug 433 (may be threaded) The center nozzle 41 is disposed at an inner end of the center nozzle air supply pipe 44, and the outer end of the center nozzle air supply pipe 44 is provided with a helium port 441, and the inner end is closed. When three turns of fire are required for simultaneous use, the intake port 432 and the intake port 441 are respectively inhaled, and when only the center fire is required, the intake port 441 can be separately inhaled. ·

The working principle of the present invention is that the gas is injected from the central nozzle 41 into the central gas mixing pipe 241, and the primary air I from the narrow channel 33 is taken, and the mixed gas/air mixture flows into the center gas mixture.

The chamber 24 is ignited after flowing into the fire hole of the center ring 21; the gas emitted from the peripheral nozzle 42 and the primary air I entering the peripheral nozzle chamber 32 are mixed in the peripheral gas mixing tube 251, and the mixed gas/air mixture enters the periphery. The gas mixing chamber 25 finally ignites after flowing into the fire holes in the inner ring 22 and the outer ring 23 respectively; after the secondary air II enters from the secondary air inlet 324, passes between the inner ring 22 and the center ring 21 After the groove 29, it is used for the combustion of the inner ring 22 and the center ring 21, respectively.

The above-described embodiments are merely illustrative of the invention, and are not intended to limit the invention, and various changes and modifications can be made without departing from the spirit and scope of the invention. All equivalent technical solutions are also within the scope of the invention, and the scope of the invention should be defined by the claims.

Claims

WO 2006/114063 p T /ΓΜ n PCT/CN2006/000959. ^ Rights Requirements

A gas burner comprising a fire cover (1), a fire-breathing device (2), a base (3) and an air intake device (4), wherein the fire-breathing device (2) has a central fire ring ( 21), inner ring (22), outer ring (23), a central gas mixing chamber (24) is formed in the central ring (21), and the central gas mixing chamber (24) is a central gas mixing tube (241); characterized in that: at least three uniformly distributed peripheral gas mixing chambers (25) are formed between the inner ring (22) and the outer ring (23), each a peripheral gas mixing tube (251) is disposed in a middle portion of the peripheral gas mixing chamber (25), and the base (3) is provided with a central nozzle chamber (31) corresponding to the central gas mixing tube (241), and a peripheral nozzle chamber (32) corresponding to the peripheral gas mixing tube (251), the inlet device (4) is provided with a central nozzle (41) corresponding to the central nozzle chamber (31) and The peripheral nozzle chamber (32) corresponds to a peripheral nozzle (42).

2. A gas burner according to claim 1, wherein: said peripheral gas mixing chamber (25), peripheral nozzle chamber (32) and peripheral nozzle (42) are three, said An elongated passage (33) for inflow of primary air is provided between at least one of the three peripheral nozzle chambers (32) and the central nozzle chamber (31).

3. A gas burner according to claim 2, wherein: said three peripheral nozzle chambers (32) and said central nozzle chamber (31) are provided with a primary air inflow. Long and narrow channel (33).

4. A gas burner according to claim 1 or 2 or 3, wherein: said outer ring (23) and said central ring (21) are circular in cross section, said inner ring (22) has a cross section of "Y", and a plurality of through grooves (29) for inflowing secondary air are formed between the inner ring (22) and the center ring (21). The peripheral gas mixing chambers (25) are separated by two pilot grooves (26) and a partition wall (27).

5. A gas burner according to claim 1 or 2 or 3, wherein: said base (3) comprises a disc (34), said central nozzle chamber (31) being formed therein The middle portion of the disc has a substantially circular cross section, and an opening (311) for the center gas mixing tube (241) to protrude into the top end and a through hole for the center nozzle (41) to extend into the bottom end (312); the peripheral nozzle cavity (32) is symmetrically distributed at the adjacent edge of the disc (34), the cross section thereof is substantially trapezoidal, and the top end is provided with the peripheral gas mixing tube (251) extending into the The opening (321) has a through hole (322) at the bottom end for the peripheral nozzle (42) to protrude. WO 2006/114063 -.... „ _/ , . ₍ ^ _{n rt} PCT/CN2006/000959 _Λ

PCT C 200b / U U 0 9 5 9

6. A gas burner according to claim 5, wherein: the outer end of the peripheral nozzle chamber (32) is provided with a notch (323) for primary air to enter, the two adjacent peripheral nozzle chambers. The space between the two forms a secondary air inlet (324); the inner side of the top end surface of the central nozzle chamber (31) is circumferentially symmetrically provided with a plurality of central positioning ports (313) in the peripheral nozzle chamber (32) At least one outer positioning end (325) is disposed at an outer end, and the lower surface of the fire-spraying device (2) is provided with three ribs matched with the central positioning 榫 (313) and the outer positioning 榫 (325) The strip (28), and the bottom end faces of the three ribs are in contact with the peripheral surfaces of the peripheral nozzle chamber (32), the central nozzle chamber (31) and the elongated channel (33).

7. A gas burner according to claim 6, wherein: said central positioning weir (313) has three sections, each of which is curved; said outer periphery of said central nozzle chamber (31) Ignition device (314) and flameout protection device (315) are provided.

A gas burner according to claim 1 or 2 or 3, wherein: said air intake means (4) comprises a peripheral nozzle air supply pipe (43) and a center nozzle air supply pipe independent of each other.

(44); the peripheral nozzle air supply pipe (43) has a "Y" shape, which is formed by three tubular bodies (431) intersecting and communicating, and the central nozzle air supply pipe (44) is in a "one" shape. In the shape, it intersects but does not communicate with the middle of the "Y" shaped peripheral nozzle air supply pipe (43).

9. A gas burner according to claim 8, wherein: said peripheral nozzles (42) are evenly distributed at three ends of said peripheral nozzle air supply pipe (43), said outer nozzle One end of the air supply pipe (43) is provided with an air inlet (432), and the other ends are closed by a plug (433); the central nozzle (41) is disposed at an inner end of the central nozzle air supply pipe (44) The outer end of the central nozzle air supply pipe (44) is provided with an air inlet (441), and the inner end is closed.

10. A gas burner according to claim 1 or 2 or 3, wherein: said fire cover (1) comprises a central fire cover (11) and an outer fire cover, said outer fire cover External fire cover decorative board

(12) and the outer fire cover plate (13).