CN105570893A - Gas burner - Google Patents

Abstract

The invention discloses a gas burner, which comprises a main body frame and a plurality of combustion fire rows arranged on the upper end of the main body frame alternately and in the same row. A fire array, a plurality of fire spray arrays are arranged at least in one row along the length direction of the combustion fire row; the fire spray array includes two first nozzles and at least one second nozzle, the first nozzle can form a horizontal flame towards the surroundings, the second The two nozzles can form upward longitudinal flames, the two first nozzles are arranged oppositely, the length direction of the first nozzles corresponds to the length direction of the combustion fire row, and the second nozzle is arranged between the two first nozzles; The lower end of the main frame is provided with an air intake regulating plate for controlling air circulation. It has higher combustion efficiency, has the characteristics of higher energy utilization efficiency and lower cost.

Description

gas burner

technical field

The invention relates to the technical field of gas combustion, in particular to a gas burner.

Background technique

At present, the gas burners used in water heaters on the market basically adopt atmospheric combustion fire rows arranged in strips, and use the principle of mixed combustion with air to speed up the combustion speed. The flame hole is large, although it can spray a large amount of gas, but due to structural design defects, a large amount of gas or a mixture of gas and air is ejected quickly but it is difficult to fully burn, resulting in low flame temperature, so each gas burner generally burns Using 10-20 combustion fire rows not only wastes energy, but also is not conducive to cost control. In addition, insufficient combustion of gas will also produce many harmful gases, which is not conducive to people's health.

Contents of the invention

Based on this, the object of the present invention is to overcome the defects of the prior art and provide a gas burner with higher combustion efficiency.

Its technical scheme is as follows:

A gas burner, comprising a main body frame and a plurality of combustion fire rows, the plurality of combustion fire rows are arranged on the upper end of the main body frame alternately and in the same row, and the upper end surface of the combustion fire row is provided with a plurality of fire spraying arrays, many A fire-spraying array is at least arranged in one row along the length direction of the combustion fire row; the fire-spraying array includes two first nozzles and at least one second nozzle, the first nozzle can form a transverse flame towards the surroundings, and the second nozzle can form Towards the upward longitudinal flame, two first nozzles are arranged oppositely, the length direction of the first nozzle corresponds to the length direction of the combustion fire row, and the second nozzle is arranged between the two first nozzles; the main body frame The lower end is provided with an intake regulating plate for controlling air circulation.

In one of the embodiments, the first nozzle is a cuboid nozzle or a trapezoidal nozzle, and the first nozzle is provided with gas nozzles on four sides; the second nozzle is a cylindrical nozzle with gas nozzles on the top surface. nozzle.

In one embodiment, both the first nozzle and the second nozzle protrude from the upper end surface of the combustion fire row by 0.5-1mm.

In one of the embodiments, a second nozzle is further provided on the upper end surface of the combustion fire row in the region between two adjacent fire spray rows.

In one of the embodiments, at least two support frames are arranged inside the main body frame, and a plurality of the combustion fire rows are erected on at least two support frames alternately and side by side.

In one of the embodiments, a plurality of gas pipes are provided on the support frame, and the plurality of gas pipes are in one-to-one correspondence with the plurality of combustion fire rows.

In one of the embodiments, the lower part of the main frame is provided with a gas inlet docked with the gas supply device, and from the gas inlet to the combustion fire row, there are also conical constriction tubes connected sequentially inside the main frame. pipe, hidden throat pipe, diffuser pipe, U-shaped baffle pipe and distribution pipe, the distribution pipe is provided with a plurality of air outlets, and the plurality of air outlets correspond to the plurality of combustion fire rows one by one.

The advantages or principles of the foregoing technical solutions are described below:

In the above-mentioned gas burner, the gas is ignited to form a combustion flame after being sprayed from the first nozzle and the second nozzle, the first nozzle sprays gas to the surroundings to form a horizontal flame towards the surroundings, and the second nozzle sprays gas upwards A vertical flame facing upwards can be formed. The longitudinal flame has good rigidity and high temperature, and is used for the main heat output. Because the two first nozzles are arranged opposite to each other, and the second nozzle is arranged between the two first nozzles, the flame formation is formed. The flame is W-shaped, similar to a sunflower, and its advantages are: 1. The horizontal flame on the first nozzle can heat the gas in the second nozzle, making the longitudinal flame form an external flame, thereby improving the stability of the longitudinal flame and anti-tempering ability, so that the combustion fire row can still carry out stable combustion operation under lower load (that is, when the gas output flow rate is low); 2. The horizontal flame on the first nozzle can also occupy the interval between adjacent fire spray rows And the interval between adjacent combustion fire rows can make full use of the air in the space, make the combustion more complete, and the flame distribution is more uniform, thereby improving the combustion efficiency of the combustion fire row; 3. The air flowing in from the air intake adjustment plate The air will flow out from the interval area between two adjacent combustion fire rows, which is used to prevent insufficient air and incomplete combustion when the gas is burned. Combustion, that is, to further promote the combustion efficiency of the combustion fire row.

Description of drawings

Fig. 1 is the structural representation of the gas burner described in the embodiment of the present invention;

Fig. 2 is the schematic diagram of the upper end face of the gas burner described in the embodiment of the present invention;

Fig. 3 is the enlarged schematic diagram of place A in Fig. 2;

Fig. 4 is the schematic diagram of the combustion fire row seen in angle B among Fig. 2;

FIG. 5 is a schematic diagram of combustion of the combustion fire row shown in FIG. 4 .

Explanation of reference signs:

1. Main body frame, 11. Gas inlet, 12. Tapered shrink tube, 13. Invisible throat tube, 14. Diffusion tube, 15. U-shaped baffle tube, 16. Distribution tube, 17. Support frame, 18. Inlet Gas regulating plate, 2, combustion fire row, 21, fire spray array, 22, first nozzle, 23, second nozzle, 24, horizontal flame, 25, vertical flame, 3, gas supply device, a, gas, b, Air.

detailed description

Embodiments of the present invention are described in detail below:

As shown in Figure 1-5, it is a gas burner, which includes a main body frame 1 and a plurality of combustion fire rows 2, and the plurality of combustion fire rows 2 are arranged on the main body in the same row along the width direction of the combustion fire row 2 The upper end of the frame 1 and the upper end surface of the combustion fire row 2 are provided with a plurality of fire-spraying arrays 21, and the plurality of fire-spraying arrays 21 are at least arranged in one row along the length direction of the combustion fire row 2, and the fire-spraying arrays 21 include two first nozzles 22 and at least one second nozzle 23, the first nozzle 22 can form a horizontal flame 24 facing all around, the second nozzle 23 can form a vertical flame 25 facing upwards, the two first nozzles 22 are arranged oppositely, the length of the first nozzle 22 The direction corresponds to the length direction of the combustion fire row 2 , and the second nozzle 23 is arranged between the two first nozzles 22 . Wherein, the gas a is ignited to form a combustion flame after being sprayed from the first nozzle 22 and the second nozzle 23, the first nozzle 22 sprays the gas a to the surroundings to form a horizontal flame 24 towards the surroundings, and the second nozzle 23 sprays upwards. The outlet gas a can form a longitudinal flame 25 facing upwards. The longitudinal flame 25 has good rigidity and high temperature, and is used for main force heat output, because the two first nozzles 22 are arranged oppositely, and the second nozzle 23 is arranged on the two first nozzles 22 In between, the flame formed by the fire spray array 21 is W-shaped, similar to sunflowers, and its advantages are: 1. The horizontal flame 24 on the first nozzle 22 can heat the gas a in the second nozzle 23, so that the vertical flame 25 is formed external flame, thereby improving the stability of the longitudinal flame 25 and the ability to resist backfire, so that the combustion fire row 2 can still carry out stable combustion operations under a lower load (that is, when the gas supply flow rate is low), for example, when the load is higher When it is low, the longitudinal flame 25 is smaller, and the part of the transverse flame 24 towards the second nozzle 23 will protect the lower part and the root of the longitudinal flame 25, thereby improving the tempering resistance of the longitudinal flame 25, thereby ensuring its stability. When the load is high, both the horizontal flame 24 and the vertical flame 25 will be larger. At this time, the part of the horizontal flame 24 facing the second nozzle 23 will form a C-shaped or reverse C-shaped flame, and stick to the vertical flame 25 at the same time, causing it to spread laterally. And not too high, so that the flame in the fire-spraying array 21 is more uniform on the whole, and then the combustion efficiency of the whole combustion fire row 2 is improved; 2, the horizontal flame 24 on the first nozzle 22 can also occupy the adjacent fire-spraying array The interval between them and the interval between adjacent combustion fire rows 2 can make full use of the air in the space, make the combustion more complete, and the flame distribution is more uniform, thereby improving the combustion efficiency of the combustion fire rows; 3. From the intake air The air flowing in at the adjustment plate 18 will flow out from the space between two adjacent combustion fire rows 2, which is used to prevent insufficient air and incomplete combustion when the gas a burns, so the air flow rate is controlled by the air intake adjustment plate 18. The control and adjustment can promote further complete combustion of the gas, that is, further promote the combustion efficiency of the combustion fire row 2 .

In this embodiment, the first nozzle 22 is a rectangular parallelepiped nozzle or a trapezoidal nozzle, and the first nozzle 22 is provided with gas nozzles on four sides, which are used to form a horizontal flame 24 facing all around; the second nozzle 23 is a cylindrical nozzle. A gas nozzle is provided on the top surface for forming a longitudinal flame 25 facing upwards. Wherein, both the first nozzle 22 and the second nozzle 23 protrude from the upper end surface of the combustion fire row 2 by 0.5-1 mm. In addition, two second nozzles 23 are also provided in the area between two adjacent fire spray arrays 21 on the upper end surface of the combustion fire row 2 for enhancing the firepower of the combustion fire row 2 .

In this embodiment, at least two support frames 17 are arranged inside the main body frame 1, and a plurality of combustion fire rows 2 are erected on at least two support frames 17 alternately and side by side. Gas pipes, a plurality of gas pipes correspond to a plurality of combustion fire rows 2 one by one, and are respectively connected. The lower part of the main body frame 1 is provided with a gas inlet 11 docked with the gas supply device 3, between the gas inlet 11 and the combustion fire row 2, the main body frame 1 is also provided with a conical shrinkage tube 12 connected in sequence, a hidden throat Pipe 13, diffuser pipe 14, U-shaped baffle pipe 15 and distribution pipe 16, the distribution pipe 16 is provided with a plurality of gas outlets, and the gas outlets supply gas a to the combustion fire row 2 through the gas pipe. Wherein, the gas supply device 3 injects the gas into the gas inlet 11, and a certain amount of air b will also flow in at this time, and the gas a and the air b form a mixed gas (according to the combustion principle, this method can accelerate the combustion speed of the gas a), Afterwards, the mixed gas enters the combustion fire row 2 through the conical shrinkage tube 12, the implicit throat pipe 13, the diffuser tube 14, the U-shaped baffle tube 15, the distribution pipe 16 and the gas pipe, and then from the combustion fire row 2. The first nozzle 22 and the second nozzle 23 spray and burn to form a flame.

Tests have shown that the gas burner only needs to use 8 to 15 combustion fire rows to achieve or even exceed the firepower of conventional gas burners, so it has higher energy utilization efficiency and lower cost.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of concise description, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (7)

1. a gas burner, comprise main frame and multiple burning fire row, multiple burning fire row respectively, be arranged on the upper end of main frame same column, it is characterized in that, the upper surface of described burning fire row is provided with multiple flame battle array, and multiple flame battle array is at least in line along the length direction of described burning fire row; Flame battle array comprises two first jet and at least one second nozzle, first jet can form the horizontal flame towards surrounding, second nozzle can form longitudinal flame upward, two first jet are oppositely arranged, the length direction of first jet is corresponding with the length direction of described burning fire row, and second nozzle is arranged between two first jet; The lower end of described main frame is provided with the air inlet adjustment plate controlling air circulation.

2. gas burner according to claim 1, is characterized in that, described first jet is cuboid nozzle or prismatoid nozzle, and described first jet is provided with combustion gas spout four sides; Described second nozzle is the cylindrical spout being provided with combustion gas spout at end face.

3. gas burner according to claim 2, is characterized in that, described first jet and described second nozzle all protrude the upper surface 0.5-1mm of described burning fire row.

4. gas burner according to claim 1, is characterized in that, is also provided with second nozzle in the region on the upper surface of described burning fire row between adjacent two flame battle arrays.

5. gas burner according to any one of claim 1 to 4, is characterized in that, is provided with at least two bracing frames in described main frame, and multiple described burning fire row is erected at least two bracing frames respectively, abreast.

6. gas burner according to claim 5, is characterized in that, support frame as described above is provided with many Gas Pipe, many Gas Pipe and multiple described burning fire row one_to_one corresponding.

7. gas burner according to any one of claim 1 to 4, it is characterized in that, the bottom of described main frame is provided with the fuel gas inlet docked with gas feeder, between from fuel gas inlet to described burning fire row, also be provided with in described main frame connect successively conical converging, insinuate trunnion, anemostat, U-shaped baffle pipe and distributing pipe, distributing pipe is provided with multiple gas outlet, multiple gas outlet and multiple described burning fire row one_to_one corresponding.