CN214745718U

CN214745718U - Flame stabilizing disc of combustor

Info

Publication number: CN214745718U
Application number: CN202121083391.XU
Authority: CN
Inventors: 王春龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-11-16
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a steady flame dish of combustor solves the structural design complicacy that prior art exists, mixes wind inadequately, intensification slow scheduling problem. The flame stabilizing disc is provided with a plurality of acute angle vent holes along the same circumferential clockwise direction, the acute angle vent holes are arranged in a multi-ring mode from inside to outside around the center of the flame stabilizing disc, the hole areas of the acute angle vent holes from the air inlet side to the air outlet side are gradually reduced, and two sides of the longitudinal section at the position of the acute angle vent holes form an included angle with an acute angle. Gas and combustion-supporting air form the whirl through the direction in acute angle ventilation hole on the surface of steady flame dish, can form the spiral flame shape that the whirl is effectual during the burning to the air current can form highly compressed air current from the big department of hole area to the little department of area discharge, be favorable to mixxing gas and air, both mix more fully, improved combustion efficiency, reduced nitrogen oxide's emission, have more energy-concerving and environment-protective effect, the rise of temperature is more quick, overall structure designs simply effectively.

Description

Flame stabilizing disc of combustor

Technical Field

The utility model relates to a combustor technical field specifically is a steady flame dish of combustor.

Background

A burner is a device for ejecting, mixing (or mixing and ejecting) gas or atomized fuel and air in a certain manner to burn, and is widely used in home or industrial production. A flame stabilizing disk is arranged at each nozzle of the burner, so that gas and air are mixed and simultaneously combusted outside the burner to form a flame with a certain size and shape, and the flame stabilizing disk is used for obtaining a better flame shape and keeping the flame stable during combustion. Among the prior art, steady flame dish is often in order to form gaseous whirl, and with the too complicated of steady flame dish structural design, and mix the wind distribution single and lead to the gas mixing insufficient because of the whirl, combustion efficiency is lower, and the temperature is too high, has increased the emission of nitrogen, and the intensification is still slower.

Disclosure of Invention

The utility model aims at: in order to overcome the defects of the prior art, the utility model provides a steady flame dish of combustor solves the structural design complicacy that prior art exists, mixes the wind insufficient, slow scheduling problem heaies up.

The technical scheme of the utility model: the flame stabilizing disc is provided with a plurality of acute angle vent holes along the same circumferential clockwise direction, the acute angle vent holes are arranged in a multi-ring mode from inside to outside around the center of the flame stabilizing disc, the hole areas of the acute angle vent holes from the air inlet side to the air outlet side are gradually reduced, and two sides of the longitudinal section at the position of the acute angle vent holes form an included angle with an acute angle.

Adopt above-mentioned technical scheme, gas and combustion-supporting air form the whirl through the direction in the acute angle ventilation hole at the surface of steady flame dish, can form the spiral flame shape that the whirl is effectual during the burning, and the air current can form highly compressed air current from the big department of hole area to the little department of area discharge, be favorable to stirring gas and air, both mix more fully, make the more abundant of combustible gas burning, combustion efficiency is improved, nitrogen oxide's emission has been reduced, it is more energy-concerving and environment-protective effect to have more, the rise of temperature is more quick, the simple effect of overall structure design.

The utility model discloses a further setting: one edge of the longitudinal section of the acute-angle vent hole is arranged along the axial direction of the flame stabilizing disc, and the other edge of the longitudinal section forms an inclined plane.

With the further arrangement, the airflow is guided to flow out from the inclined surface, which is beneficial to forming the rotational flow effect.

The utility model discloses a further setting again: the included angle is between 30 ° and 60 °.

By adopting the above further arrangement, the cyclone effect is good, and the combustion efficiency is better.

The utility model discloses a still further set up: the included angle is 45 degrees.

By adopting the above further setting, the swirl effect is optimal, and the combustion efficiency reaches the peak.

The utility model discloses a still further set up: the inclined surface extends outwards towards the air outlet side of the flame stabilizing disc and an air outlet side orifice is formed between the inclined surface and the air outlet side of the flame stabilizing disc, and the axial distance between the inclined surface and the air outlet side of the flame stabilizing disc is 0.5mm-2 mm.

With the above further arrangement, the formation of high-pressure airflow is facilitated, and the flame is in a spurting shape.

The utility model discloses a still further set up: the plurality of acute angle vent holes are uniformly distributed in the circumferential direction, and the acute angle vent holes arranged in multiple rings are distributed from the center of the flame stabilizing disc to the outside in an inner-dense and outer-sparse manner.

With the above further arrangement, the combustion position is more concentrated.

Drawings

FIG. 1 is a partial cross-sectional view of the air outlet side of the flame stabilizing disc of the present invention;

FIG. 2 is a schematic structural view of the air inlet side of the flame stabilizing disc of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1;

wherein, 3, a flame stabilizing disc; 31. an acute angle vent; 311. an inclined surface; 312. an air outlet side orifice; 313. and (4) bending the blocks.

Detailed Description

As shown in fig. 1-3, a plurality of acute angle vents 31 are formed on the flame stabilizing disc 3 along the same circumferential direction, and the plurality of acute angle vents 31 are arranged in a plurality of rings from inside to outside around the center of the flame stabilizing disc 3, which is shown as six-ring arrangement. The hole area of the acute-angle vent hole 31 from the air inlet side to the air outlet side is gradually reduced from large to small, and an included angle alpha with an acute angle is formed on two sides of the longitudinal section of the position of the acute-angle vent hole 31. The acute angle vent holes 31 are arranged along the same clockwise direction, and can lead the exhaust direction to be the same inclined shape of the air outlet direction, thereby generating the rotating spiral airflow; in addition, the air flow is discharged from the position with large hole area to the position with small area to form uniform high-pressure jet-shaped air flow, so that the air and the fuel gas are fully and quickly mixed, and the mixed gas is quickly discharged.

In order to stabilize the flame shape, one of the longitudinal sections of the acute-angle vent holes 31 is disposed along the axial direction of the flame stabilizing plate 3, and the other one forms an inclined surface 311. One side of the axial direction avoids disturbing the airflow, so that the airflow is guided to flow out by the inclined surface 311, the flow-out direction is more consistent, and a good rotational flow effect is formed.

When the included angle alpha is between 30 degrees and 60 degrees, the combustion efficiency is better. And when the included angle alpha is 45 degrees, the combustion efficiency reaches the peak, and the rotational flow effect is excellent.

Inclined plane 311 extends outward and forms air-out side aperture 312 between 3 air-out sides of steady flame dish 3 to steady flame dish 3, and air-out side aperture 312 is between 0.5mm to 2mm in the ascending interval of 3 axial directions of steady flame dish or size, and in the experimental verification, under this kind of air-out side aperture 312 axial interval, change and form high-pressure draught, flame shape more has the spurt form.

The plurality of acute angle vent holes 31 are uniformly distributed in the circumferential direction, and the multiple rings of acute angle vent holes 31 are arranged from the center of the flame stabilizing disc 3 to the outside in a dense-inside-sparse-outside manner. The acute angle vent 31 is formed by punching and bending from the air inlet side to the air outlet side, the bottom surface of the punched bending block 313 is an inclined surface 311, and the punched fracture surface is a plane in the axial direction of the flame stabilizing disc 3.

Claims

1. A flame stabilizing disc of a burner is characterized in that: it has a plurality of acute angle ventilation holes, a plurality of to open along the same hour hand direction of circumference on the steady flame dish the acute angle ventilation hole is around the center of steady flame dish and is from inside toward outside polycyclic arrangement, the acute angle ventilation hole is diminished by big gradually from the air inlet side to the hole area of air-out side, the contained angle that is acute angle is formed on the both sides of acute angle ventilation hole position longitudinal section.

2. A flame holding disk for a burner according to claim 1, wherein: one edge of the longitudinal section where the acute-angle vent hole is located is arranged along the axial direction of the flame stabilizing disc, and the other edge of the longitudinal section forms an inclined plane.

3. A flame holding disk for a burner according to claim 2, wherein: the included angle is between 30 ° and 60 °.

4. A flame holding disk for a burner according to claim 3, wherein: the included angle is 45 degrees.

5. A flame holding disk for a burner according to claim 2 or 4, wherein: the inclined surface extends outwards towards the air outlet side of the flame stabilizing disc and an air outlet side orifice is formed between the inclined surface and the air outlet side of the flame stabilizing disc, and the axial distance between the inclined surface and the air outlet side of the flame stabilizing disc is 0.5-2 mm.

6. A flame holding disk for a burner according to claim 1 or 4, wherein: a plurality of acute angle ventilation hole is evenly distributed on the circumferencial direction, and the acute angle ventilation hole of many ring arrangements is inside to be close to outside from the center of steady flame dish and is dredged the arrangement outward.