CN-122015086-A - Burner

CN122015086ACN 122015086 ACN122015086 ACN 122015086ACN-122015086-A

Abstract

The invention provides a burner, which comprises a distributor, an inner fire cover and an outer fire cover, wherein an air channel and an outer ring gas channel are formed between the distributor and the outer fire cover, the air channel is not communicated with the outer ring gas channel, a plurality of outer fire holes distributed along the first circumference of the outer fire cover and a plurality of outer air holes distributed along the second circumference of the outer fire cover are arranged on the outer fire cover, each outer fire hole corresponds to one outer air hole to form an air hole group, the axes of the outer fire holes and the outer air holes in the same air hole group are on the same radial line, a first included angle is formed between the axis of the outer fire hole and the bottom plane of the outer fire cover, a second included angle is formed between the axis of the outer air hole and the bottom plane of the outer fire cover, the first included angle is alpha 1 , the second included angle is alpha 2 , and the first included angle and the second included angle satisfy the following relation that 0 DEG < alpha 2 ＜α 1 <90 deg. The burner provided by the invention can enable secondary air to be in contact with gas flame instantly after being sprayed out, so that air diffusion loss is avoided, and the air utilization rate is increased to more than 80%.

Inventors

RONG ZEBO
LIU BING
CHEN ZHAOLIANG
Ma haichuan
ZHONG SHAOHAI

Assignees

广东万家乐燃气具有限公司

Dates

Publication Date: 20260512
Application Date: 20260303

Claims (10)

1. The burner is characterized by comprising an distributor, an inner fire cover and an outer fire cover, wherein an air channel and an outer ring gas channel are formed between the distributor and the outer fire cover, the air channel and the outer ring gas channel are not communicated, a plurality of outer fire holes distributed along a first peripheral line of the outer fire cover and a plurality of outer air holes distributed along a second peripheral line of the outer fire cover are arranged on the outer fire cover, the radiuses of the first peripheral line and the second peripheral line are different, each outer fire hole corresponds to one outer air hole to form an air hole group, the axes of the outer fire holes and the outer air holes in the same air hole group are arranged on the same radial line, the outer fire holes and the outer fire holes form a double-layer annular radial distribution structure when seen from the overlooking direction of the outer fire cover, the outer fire holes are communicated with the air channel, the outer fire holes are arranged above the outer air holes and distributed along the second peripheral line, the outer fire holes are arranged above the outer fire holes, the first peripheral line and the second peripheral line form an included angle of the second peripheral line of the outer fire cover, and the second peripheral line of the outer fire cover form an included angle of [ alpha ] < 5324, and the second peripheral angle of the second peripheral line is formed between the first peripheral line and the second peripheral line of the second peripheral line, and the second included angle of the second peripheral angle of the outer fire hole is formed between the second angle of angle and the second angle of angle alpha < 5390, and the second angle of angle formed between the second angle and the second angle of angle and the second angle.
2. The burner of claim 1, wherein the first included angle is 30 ° to 70 °.
3. The burner of claim 2, wherein the first angle is 30 ° to 50 °, the difference between the first angle and the second angle is a crossover angle, and the crossover angle is 10 ° to 30 °.
4. The burner of claim 1, wherein the outlet of the outer air hole and the outlet of the outer fire hole have a vertical height difference of 1 to 2mm.
5. The burner of claim 1 wherein the outer fire cover has an air outlet face, the outlet of the outer fire hole and the outlet of the outer air hole being located on the air outlet face, the air outlet face being inclined outwardly from top to bottom, the air outlet face forming an angle of 20 ° to 50 ° with the plane of the bottom of the outer fire cover.
6. The burner of claim 1, wherein the air passage comprises a primary air passage and a secondary air passage, the primary air passage and the secondary air passage are communicated through a buffer port, the outer fire cover comprises a partition wall, an inner annular wall, an outer annular wall and an inner baffle wall, the partition wall separates the air passage and the outer annular gas passage, the primary air passage is formed among the inner annular wall, the partition wall and the distributor, the outer annular wall and the distributor form the outer annular gas passage, the inner baffle wall is connected below the inner annular wall and extends towards the center direction of the outer fire cover, the inner fire cover is installed in an installation position formed by surrounding the inner baffle wall, circumferentially-spaced inner air holes are formed in the inner baffle wall, the secondary air passage is formed among the inner baffle wall and the distributor, the primary air passage is communicated with the outer air holes, and the secondary air passage is communicated with the inner air holes.
7. The burner of claim 6 wherein said inner baffle wall has an ignition mounting opening therein, said ignition mounting opening being non-communicating with said air passage, said inner baffle wall being parallel to said outer fire cover bottom plane, said inner annular wall being inclined inwardly from top to bottom, said inner annular wall being provided with a plurality of secondary air holes at said ignition mounting opening, said secondary air holes communicating with said primary air passage.
8. The burner of claim 6, wherein the outer fire cover further comprises an outer baffle wall connected below the outer annular wall and extending away from the center of the outer fire cover, the outer baffle wall being inclined outwardly from top to bottom, the outer baffle wall, outer annular wall, outer baffle wall, and distributor forming the outer annular gas passage therebetween.
9. The burner of claim 1, wherein the outer flame cover is provided with an annular lower flame stabilizing slit cut through the outer annular wall and communicated with the outer flame hole, an outlet of the lower flame stabilizing slit is positioned below the outlet of the outer flame hole, and the depth direction of the lower flame stabilizing slit is parallel to the bottom plane.
10. The burner of claim 1 wherein adjacent groups of air holes have upper flame holding holes therebetween, the axes of the outlets of the upper flame holding holes being above the axes of the outlets of the outer flame holes, the upper flame holding holes being located between a first contour and a second contour.

Description

Burner Technical Field The invention relates to the technical field of combustors, in particular to a combustor. Background At present, two technical routes of primary air blowing and secondary air blowing are mainly adopted by the blast household gas stove. The primary air blowing scheme forces air to flow to a primary air channel of a combustor through a fan, and aims to improve the premixing effect of fuel gas and air. The secondary air scheme can promote the full combustion of fuel gas by forcibly supplementing secondary air to the peripheral area of the combustion flame, and can avoid the interference to the primary air injection structure. However, the scheme for supplementing secondary air is unreasonable in structural design, and has the following technical problems that most of air cannot participate in combustion, so that air waste is caused, heat is taken away after the air is heated, insufficient combustion is finally caused, and heat efficiency is difficult to improve. Disclosure of Invention In view of the above, an object of the present invention is to provide a burner. The technical scheme adopted by the invention is as follows: the utility model provides a combustor, including distributor, interior fire lid and outer fire lid, constitute air channel and outer loop gas passageway between distributor and the outer fire lid, do not communicate between air channel and the outer loop gas passageway, be provided with on the outer fire lid along a plurality of outer fire holes that outer fire lid first week line distributes and along a plurality of outer air holes that outer fire lid second week line distributes, the radius of first week line and second week line is different, and every outer fire hole corresponds an outer air hole and constitutes an air hole group, and the axle center of outer fire hole and outer air hole in same air hole group is on same radial line, from the overlooking direction of outer fire lid, a plurality of outer air holes and a plurality of outer fire holes constitute double-deck annular radial distribution structure, outer fire hole intercommunication outer loop gas passageway, outer air hole intercommunication air channel the axial of outer fire lid, the outer air hole is located the top of outer fire hole, the axis of outer hole is different with the second week line, and the outer fire hole is the first angle 2＜α1 is established with the first angle between the first angle of the bottom of outer fire lid, and the second angle is the first angle is formed between the first angle of the first angle is 2＜α1, and the second angle is formed between the first angle is the angle is formed between the first angle of angle and the second angle is formed between the angle is formed by the angle is formed between the angle first angle and the angle is formed by the angle is formed between the angle and the angle is formed by the angle between the angle and second angle is formed by angle between angle and 52. Preferably, the first included angle is 30-70 degrees. Preferably, the first included angle is 30-50 degrees, the difference value between the first included angle and the second included angle is a crossed included angle, and the crossed included angle is 10-30 degrees. Preferably, the vertical height difference between the outlet of the outer air hole and the outlet of the outer fire hole is 1-2mm. Preferably, the fire cover is provided with an air outlet surface, the outlet of the outer fire hole and the outlet of the outer air hole are both positioned on the air outlet surface, the air outlet surface is inclined outwards from top to bottom, and an included angle of 20-50 degrees is formed between the air outlet surface and the bottom plane of the outer fire cover. Preferably, the air channel comprises a main air channel and a secondary air channel, the main air channel and the secondary air channel are communicated through a buffer port, the outer fire cover comprises a partition wall, an inner annular wall, an outer annular wall and an inner baffle wall, the partition wall separates the air channel and the outer annular gas channel, the main air channel is formed among the inner annular wall, the partition wall and the distributor, the outer annular gas channel is formed among the partition wall, the outer annular wall and the distributor, the inner baffle wall is connected below the inner annular wall and extends towards the center direction of the outer fire cover, the inner fire cover is installed in an installation position formed by encircling the inner baffle wall, inner air holes distributed at intervals in the circumferential direction are formed in the inner baffle wall, the secondary air channel is formed among the inner baffle wall and the distributor, the main air channel is communicated with the outer air holes, and the secondary air channel is communicated with the inner air holes. Preferably, the inner retaining wall is provided with an ignition mountin