CN213334386U

CN213334386U - Burner fire cover with staggered stable flames

Info

Publication number: CN213334386U
Application number: CN202021831984.5U
Authority: CN
Inventors: 钱意; 何志兴
Original assignee: Shenzhen Huowang Gas Appliance Co ltd
Current assignee: Shenzhen Huowang Gas Appliance Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-01
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a burner fire cover with staggered and stabilized flames, which comprises a fire cover body, wherein the bottom end of the fire cover body is provided with a plurality of first combustion grooves and a plurality of second combustion grooves which are distributed at intervals around the circumference of the central axis of the fire cover body; the second combustion groove is arranged between every two adjacent first combustion grooves; the first combustion groove and the second combustion groove are communicated to the side face of the fire cover body; the height of the first combustion groove is greater than that of the second combustion groove. The burner fire cover with the staggered and stable flames of the utility model can realize the staggered distribution of the long and short flames, so that the combustion process is stable.

Description

Burner fire cover with staggered stable flames

Technical Field

The utility model relates to a combustor fire lid structure especially relates to crisscross steady flame's combustor fire lid.

Background

The fire cover, also called distributor, is the part of the combustor with the highest temperature at the upper end, and the main material is copper or cast iron, and the requirements for surface treatment are mainly high temperature resistance, corrosion resistance and good decoration for a long time. The combustion grooves of the existing fire cover are generally the same-size combustion grooves which are directly communicated with a gas channel in a fire cover seat, and the flame height is the same during combustion. While the flame height is high, the condition of fire escape is easy to occur, and conversely, the flame heat is insufficient when the flame height is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a burner fire cover with staggered stable flames, which can ensure the stable combustion process through staggered distribution of long and short flames.

The purpose of the utility model is realized by adopting the following technical scheme:

the burner fire cover comprises a fire cover body, wherein a plurality of first combustion grooves and a plurality of second combustion grooves are formed in the bottom end of the fire cover body, and are circumferentially distributed at intervals around the central axis of the fire cover body; the second combustion groove is arranged between every two adjacent first combustion grooves; the first combustion groove and the second combustion groove are communicated to the side face of the fire cover body; the height of the first combustion groove is greater than that of the second combustion groove.

Furthermore, the fire cover body is provided with an inner ring and a top ring, and the top ring is fixedly connected to the outer peripheral edge of the top of the inner ring; the first combustion grooves and the second combustion grooves are arranged at the bottom end of the top ring; one end of each of the first combustion groove and the second combustion groove penetrates through the outer side face of the top ring, and the other end of each of the first combustion groove and the second combustion groove penetrates through the outer surface of the inner ring.

Further, the bottom end surface of the top ring is formed into a guide slope, and the top ends of the first combustion groove and the second combustion groove penetrate through the guide slope.

Furthermore, an included angle formed between the plane of the guide inclined plane and the central axis of the top ring is 70 degrees.

Further, the outer side of the first combustion groove extends to the edge of the outer side of the top ring through a first backflow surface.

Further, a second backflow surface is arranged between two adjacent first combustion grooves, and the bottom end of the second backflow surface is arranged in each second combustion groove.

Compared with the prior art, the beneficial effects of the utility model reside in that: the first combustion grooves and the second combustion grooves with different heights are distributed at the bottom end of the fire cover body in a staggered mode, namely, during combustion, long flames and short flames are distributed in a staggered mode, the root parts of the flames in the first combustion grooves can be completely combusted, generated high-temperature smoke can form a low-speed backflow area between the two first combustion grooves, mixed gas at a main flame outlet can be heated, the fire-removing limit is improved, fire can not be removed during combustion, and the combustion process is stable; but also can ensure the heat of the flame and improve the combustion efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

In the figure: 10. a top ring; 11. a first combustion tank; 12. a second combustion bowl; 13. a first return surface; 14. a second return surface; 15. a guide ramp; 20. and an inner ring.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

the burner fire cover with staggered flame stabilization as shown in fig. 1 and fig. 2 comprises a fire cover body, wherein a plurality of first combustion grooves 11 and a plurality of second combustion grooves 12 are arranged at the bottom end of the fire cover body, specifically, the plurality of first combustion grooves 11 and the plurality of second combustion grooves 12 are circumferentially distributed at intervals around the central axis of the fire cover body, and the second combustion grooves 12 are arranged between two adjacent first combustion grooves 11, that is, the first combustion grooves 11 and the second combustion grooves 12 are circumferentially distributed at intervals in a staggered manner on the fire cover body, and the first combustion grooves 11 and the second combustion grooves 12 are all communicated to the side surface of the fire cover body. In addition, the height of the first combustion groove 11 is greater than the height of the second combustion groove 12.

On the basis of the structure, when the burner fire cover with staggered stable flames of the utility model is used, the fire cover body can be placed on the burner fire cover seat of the cooking range, the first combustion grooves 11 and the second combustion grooves 12 of the fire cover body can be communicated with the gas channel in the fire cover seat, then the igniter ignites the gas, the combustion flame can appear in the first combustion grooves 11 and the second combustion grooves 12, because the height of the first combustion grooves 11 is higher than that of the second combustion grooves 12, the first combustion grooves 11 and the second combustion grooves 12 with different heights are staggered and distributed at the bottom end of the fire cover body, during combustion, the flame height in the first combustion grooves 11 is higher than that in the second combustion grooves 12, the long flame in the first combustion grooves 11 can be improved to ensure the flame height, the combustion efficiency is improved, and the short flame in the second combustion grooves 12 is stable, when in combustion, the fire does not break away, and simultaneously the short flame can be ignited in time when the fire breaks away in the first combustion grooves 11, the flame in the adjacent first combustion groove 11 is stabilized, so that the flame is not removed during combustion, and the combustion process is stable; but also can ensure the heat of the flame and improve the combustion efficiency.

Further, the fire lid body is provided with an inner ring 20 and a top ring 10, the top ring 10 is fixedly connected to the top peripheral edge of the inner ring 20, and the plurality of first combustion grooves 11 and the plurality of second combustion grooves 12 are all arranged at the bottom end of the top ring 10. One ends of the first combustion grooves 11 and the second combustion grooves 12 penetrate the outer surface of the top ring 10, and the other ends of the first combustion grooves 11 and the second combustion grooves 12 penetrate the outer surface of the inner ring 20.

When carrying out the assembly of fire lid body, on the fire lid seat when inner circle 20 can assemble, and top ring 10 alright gland is on fire lid seat top, a plurality of first combustion groove 11 and the second combustion groove 12 of top ring 10 bottom alright link up with the interior combustion channel of fire lid seat, the burning is guided to top ring 10 lateral surface by inboard through first combustion groove 11 and second combustion groove 12, burning flame is upwards by the side, reducible first combustion groove 11, the contact condition of second combustion groove 12 and outside air, flame is more stable.

Furthermore, the bottom end face of the top ring can be formed into a guide inclined plane 15, the top ends of the first combustion groove 11 and the second combustion groove 12 penetrate through the guide inclined plane 15, and the guide inclined plane 15 can guide the fuel gas in the fire cover seat from bottom to top, so that a certain flow guide effect is achieved, and the combustion is more sufficient.

Specifically, in the present embodiment, the plane of the guiding inclined surface 15 forms an included angle of 70 degrees with the central axis of the top ring 10.

Further, the outer side of the first combustion groove 11 extends to the edge of the outer side of the top ring 10 through the first backflow surface 13, and the gas which is not completely combusted in the first combustion groove 11 can be guided to flow back through the first backflow surface 13, so that the combustion efficiency is further improved. Specifically, the first backflow surface 13 can be an arc surface, so that the gas walking stroke is prolonged, and the combustion efficiency is higher.

Further, a second backflow surface 14 is arranged between two adjacent first combustion grooves 11, and the second combustion groove 12 is arranged at the bottom end of the second backflow surface 14. In this way, the incompletely combusted gas in the first combustion grooves 11 on both sides of the second backflow surface 14 can be guided by the second backflow surface 14 to flow back to the second combustion grooves 12 at the bottom end of the second backflow surface for combustion, so that the combustion efficiency is further improved, the contact between the gas and the outside air can be reduced, and the anti-misfire performance is further improved.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The burner fire cover with staggered and stabilized flames is characterized by comprising a fire cover body, wherein the bottom end of the fire cover body is provided with a plurality of first combustion grooves and a plurality of second combustion grooves which are circumferentially distributed at intervals around the central axis of the fire cover body; the second combustion groove is arranged between every two adjacent first combustion grooves; the first combustion groove and the second combustion groove are communicated to the side face of the fire cover body; the height of the first combustion groove is greater than that of the second combustion groove.

2. The staggered flame-stabilized burner fire cover of claim 1, wherein the fire cover body is provided with an inner ring and a top ring, and the top ring is fixedly connected to the outer peripheral edge of the top of the inner ring; the first combustion grooves and the second combustion grooves are arranged at the bottom end of the top ring; one end of each of the first combustion groove and the second combustion groove penetrates through the outer side face of the top ring, and the other end of each of the first combustion groove and the second combustion groove penetrates through the outer surface of the inner ring.

3. The staggered flame stabilized burner cap of claim 2, wherein the bottom end face of the top ring is formed as a guide ramp, and the top ends of the first and second combustion grooves are communicated to the guide ramp.

4. The staggered flame stabilized burner cap of claim 3, wherein the plane of said guide ramp is at an angle of 70 degrees to the central axis of said top ring.

5. The staggered flame stabilized burner cap of claim 2, wherein the outside of said first combustion bowl extends to the outside rim of said top ring through a first return surface.

6. The staggered flame-stabilized burner cap of claim 2, wherein a second return surface is provided between two adjacent first combustion grooves, and the second combustion grooves are provided at the bottom end of the second return surface.