CN201487958U - Built-in high-efficiency burner - Google Patents

Abstract

A built-in high-efficiency burner, which belongs to the technical field of burners, includes a central fire cover, an outer ring fire cover, a burner burner with a main fire injection tube and an auxiliary fire injection tube, and a fire distributor, and the main fire injection tube It is connected with the main fire nozzle, and the auxiliary fire injection pipe is connected with the auxiliary fire nozzle. It is characterized in that the burner burner has a main burner burner cavity and a secondary burner burner cavity. The two cavities are not connected to each other. The main burner furnace The head cavity is directly connected to the fire distributor cavity, the fire outlet is a single layer, and the fire holes on the outer ring fire cover are slot-type rotating structures, two long and one short are arranged on the inner side of the outer ring fire cover along the circumference. The burner of the utility model makes the flame inside the burner, reduces heat loss and improves thermal efficiency. It can be processed by a milling machine, which ensures the accuracy of the fire hole and the heat intensity of a single fire hole, making the combustion stable and more complete, and reducing the generation of exhaust gas.

Description

Built-in high-efficiency burner

technical field

The utility model belongs to the technical field of burners used in gas stoves, in particular to a burner for gas stoves with built-in flame holes.

Background technique

The burners of ordinary stoves generally have an outer ring fire and an inner ring fire, which are commonly referred to as a large fire and a small fire. The outer ring flame of a commercially available burner is ignited from the fire hole on the outside of the burner. The air contact area reduces the combustion efficiency.

Chinese utility model patent CN200961857Y, named "a high-efficiency internal flame burner". The utility model patent includes a burner head, a fire distributor installed on the burner head, and an outer ring burner installed on the fire distributor. The connection air passage of the burner, the split fire chamber is formed between the fire divider and the outer ring burner, and the burner cavity is formed between the fire divider and the burner". The burner of this utility model patent adopts a two-cavity structure, and the upper end surface of the fire divider There are several connecting channels connecting the fire distributor and the outer burner, which can make the temperature of the burner cavity lower, the burner is not easy to temper, and the secondary air comes from the outside of the cooker, which is conducive to full combustion and reduces the CO content; but there is The following defects:

1) The structure is complex, the cost is high, and it is not easy to clean.

2) The gas flow path is not smooth, which may easily cause insufficient flame combustion and inconsistent flame length.

Contents of the invention

In order to overcome the disadvantages of low combustion efficiency and difficult machining accuracy of existing burners, the utility model provides a built-in high-efficiency burner with simple structure and high thermal efficiency.

The technical scheme that the utility model solves its technical problem adopts is:

A built-in high-efficiency burner, including a central fire cover, an outer ring fire cover, a burner burner head with a main fire injection tube and a secondary fire injection tube, and a fire distributor. The main fire injection tube is connected to the main fire nozzle. The auxiliary fire injection pipe is connected with the auxiliary fire nozzle, and it is characterized in that the burner burner has a main burner burner cavity and a secondary burner burner cavity. Straight through, the fire outlet is a single layer, and the fire holes on the outer ring fire cover are slit-type rotating structures, two long and one short are arranged on the inner side of the outer ring fire cover along the circumference.

Further, the outer ring fire cover is integrated with the fire distributor.

In order to ensure sufficient air, it can burn fully and reduce exhaust gas. There is an air supplement channel at the bottom of the burner.

The outer ring fire cover is circular, and the angle b between the projection line of the center line of each fire hole on the plane and the line between the center of the main burner and the center point of the fire outlet of the fire hole on the plane is 40 ~50 degrees; the angle a between two adjacent fire holes is 6-8 degrees. At this time, the combustion condition is the best and the efficiency is high.

Compared with the burner of the prior art, the beneficial effect of the utility model is that the flame hole of the burner is a slit-type internal rotation structure, the central firepower is concentrated in the inside of the burner, and the thermal efficiency is improved. The structure of the burner is simple, and the burner head The cavity is directly connected to the fire distributor cavity, which can be processed by a milling machine, which ensures the accuracy of the heat intensity of a single fire hole, and the combustion is more stable and sufficient.

Description of drawings

Fig. 1 is the three-dimensional exploded view of an embodiment of the utility model;

Figure 2 is a perspective view of the burner shown in Figure 1;

Fig. 3 is the top view of the burner outer ring fire cover of the utility model;

Fig. 4 is a sectional view at A-A shown in Fig. 3 .

Figure 5 is a top view of the utility model burner;

Fig. 6 is a sectional view at B-B shown in Fig. 5 .

Fig. 7 is a sectional view at C-C shown in Fig. 5 .

Reference signs: 1 is the outer ring fire cover; 11 is the sub-fire chamber, 2 is the central fire cover; 3 is the burner cavity of the auxiliary burner, 4 is the decorative ring, 5 is the burner burner, and 6 is the auxiliary fire injection Pipe, 7 are main fire ejectors, 8 are main fire nozzles, 9 are secondary fire nozzles, and 10 is a fire dispenser.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

Referring to Figure 1-Figure 5, a built-in high-efficiency burner includes a central fire cover, an outer ring fire cover, a decorative ring, a burner burner with a main fire ejector tube and an auxiliary fire ejector tube, and a fire distributor. The fire ejector is connected to the main fire nozzle and independently connected to the valve body, the auxiliary fire ejector pipe is connected to the auxiliary fire nozzle and independently connected to the valve body, the burner burner has a main burner burner cavity and an auxiliary burner burner cavity, The two cavities are not connected to each other, the burner cavity of the main burner is directly connected with the fire distributor cavity, and the top of the gas flow passage in the burner cavity of the auxiliary burner is the central fire cover.

The fire outlet of the outer ring fire cover is a single layer, and the fire holes on the outer ring fire cover are slotted rotating structures, two long and one short are arranged on the inner side of the outer ring fire cover along the circumference.

The main fire nozzle and auxiliary fire nozzle can be adjusted in sections by the valve body.

The fire distributor is integrated with the outer ring fire cover, and its lower part is fitted with the edge end of the main burner burner cavity of the burner burner, as shown in Figure 6. The main burner burner cavity is directly connected with the fire distributor cavity, and the main After the fire distributor is embedded in the burner stove head, the burner burner cavity and the fire distributor cavity form an annular cavity shared by the main burner burner burner cavity and the fire distributor cavity.

After installation, there is an air replenishment channel at the bottom end of the burner head, which communicates with the atmosphere, so as to ensure the air required by the center of the burner and make the combustion more complete.

The fire holes 12 and 13 on the outer ring fire cover are slot-type internal rotation structures, that is, the fire holes are slot-type grooves with an angle, and are evenly distributed on the conical surface inside the outer ring fire cover along the circumference. A short slit type fire hole 12 is arranged on both sides of the hole 13 .

The main burner is circular, as shown in Figure 3, the center line of the fire hole is projected on the plane line L1, and the line connecting the center of the main burner and the center point of the fire outlet of the fire hole is projected on the plane line L2, L1 The included angle with L2 is b, b is 40-50 degrees, the included angle a between two adjacent fire holes, a is 6-8 degrees, this combustion condition is the best, the thermal efficiency is the highest, and the thermal efficiency can reach about 60% .

The burner of the utility model makes the flame inside the burner, reduces heat loss and improves thermal efficiency. The burner of the utility model is processed by a milling machine, which ensures the accuracy of the fire hole and the heat intensity of a single fire hole of the burner, makes the combustion stable and more sufficient, and reduces the generation of _NOx in the flue gas.

Claims (4)

1. built-in burner with high efficiency, comprise middle internal heat lid, external ring fire cover, have combusting device stove burner and the distributor of leading fiery induction tunnel and secondary fiery induction tunnel, main fiery induction tunnel links to each other with main fire-fighting mouth, secondary fiery induction tunnel links to each other with secondary fire-fighting mouth, it is characterized in that combusting device stove burner has main burner burner chamber and auxiliary burner burner chamber, two cavitys are not communicated with mutually, main burner burner chamber and distributor chamber are straight-through, crater is an individual layer, fire hole on the external ring fire cover is the clearance type rotational structure, two long one short inboards along circumference in external ring fire cover.

2. built-in according to claim 1 burner with high efficiency is characterized in that external ring fire cover and distributor are one.

3. as built-in burner with high efficiency as described in the claim 2, it is characterized in that the burner bottom is provided with the replenish air passage.

4. as built-in burner with high efficiency as described in the claim 3, it is characterized in that external ring fire cover is circular, the fire hole center line of each in the plane between the central point of projection line and the crater of the main burner center of circle and this fire hole the angle b of line projection line in the plane 40～50 spend; Angle a between the two adjacent fire holes is 6～8 degree.

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