CN202149492U - Burner cap - Google Patents

Abstract

The utility model discloses a fire cover for a burner. A fire outlet 1 is arranged on the side wall of the fire cover. hole 2. The secondary air supplementary hole can make the flame 5 roots near the fire outlet better supplement the secondary air required for combustion, promote more complete combustion, improve combustion efficiency, and reduce exhaust gas emissions. In addition, it is relatively easy to process the secondary air supplementary hole on the fire cover, and the overall structure of the fire cover is relatively compact, and will not become complicated due to the setting of the secondary air supplementary hole.

Description

burner fire cover

technical field

The utility model relates to a burner, in particular to a burner fire cover, which is mainly used on a domestic embedded gas cooker.

Background technique

Gas ranges are common kitchen utensils, and how to fully and effectively utilize gas has always been a concern of people. In order to improve the combustion efficiency of gas, people have developed gas stoves with many different structures, most of which are improved at the burner structure of gas stoves. For example, the Chinese utility model patent No. ZL03237812.2 discloses a burner for a gas stove, which is provided with an outer ring fire passage on the burner body, and an outer ring fire cover is arranged on the outer ring fire passage, and forms an annular The outer ring fire combustion chamber. The burner is characterized in that the outer side of the outer ring fire combustion chamber is closed, and the inner side of the outer ring fire combustion chamber is provided with an outer ring fire hole. This kind of burner can concentrate the firepower, thereby improving the thermal efficiency to a certain extent. However, this burner still has the problem of insufficient gas combustion. Another example is that the Chinese Utility Model Patent No. ZL200920146210.6 discloses a burner for a gas stove, which includes a gas distribution pan, an outer ring fire cover and an inner ring fire cover, and also includes a gas distribution pan and an inner ring fire cover. Another gas distribution plate with a three-cavity structure is used between the ring fire covers, which increases the volume of secondary air supplementation and makes the combustion of gas more complete. At the same time, the burner's fire cover adopts internal rotation fire and hole fire Combining the combustion method makes the heat energy more concentrated and improves the thermal efficiency. This kind of burner can greatly improve the thermal efficiency by supplementing the secondary air, but the arrangement of the gas distribution plate makes the structure of the burner relatively complicated and increases the manufacturing cost of the burner.

Utility model content

The technical problem to be solved by the utility model is to provide a burner fire cover with a compact structure, which can effectively improve combustion efficiency and reduce smoke emission, aiming at the above-mentioned prior art.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: the burner fire cover, the side wall of the fire cover is provided with a fire hole, and the feature is that: the fire cover is also provided with a fire hole near the position of the fire hole There is at least one secondary air replenishment hole.

Preferably, one end of the secondary air replenishment hole is opened on the inner facade of the fire cover, and the other end of the secondary air supplementary hole is opened on the outer facade of the fire cover. In this way, the secondary air can flow out smoothly from the opening of the outer facade of the fire cover after flowing in from the opening of the inner facade of the fire cover, so as to keep the smooth circulation of the air.

Further preferably, there are four secondary air supplementary holes, which are evenly distributed horizontally along the circumference of the side wall of the fire cover. In this way, the secondary air can be better supplemented to make the combustion more complete.

The secondary air supplementary hole can adopt various shapes. Preferably, the openings at both ends of the secondary air supplementary hole have the same size and are in the shape of strips. Due to the limitation of the size and structure of the fire cover, the height of the secondary air supply hole must be very low, so the opening is designed as a bar shape, which can increase the area of the opening, thereby effectively supplementing the secondary air.

More preferably, the secondary air replenishment hole is located above the fire outlet hole. In this way, it is more conducive to supplementing the secondary air at the root of the flame.

Compared with the prior art, the utility model has the advantage that at least one secondary air replenishment hole is provided at the position of the fire cover near the fire outlet, and the secondary air replenishment hole can better supplement the flame root near the fire outlet. The secondary air required for combustion promotes more complete combustion, improves combustion efficiency, and reduces exhaust emissions. In addition, it is relatively easy to process the secondary air supplementary hole on the fire cover, and the overall structure of the fire cover is relatively compact, and will not become complicated due to the setting of the secondary air supplementary hole.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the cross-sectional view of the burner fire cover shown in Fig. 1;

Fig. 3 is a schematic structural view of the burner fire cover shown in Fig. 1 applied to a gas cooker.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, the fire outlet holes 1 of the burner fire cover are evenly distributed on the circumference of the side wall of the fire cover, and at the same time, four secondary air Supplementary hole 2, one end of the secondary air supplementary hole 2 is opened on the inner facade 3 of the fire cover, the other end is opened on the outer facade 4 of the fire cover, and the secondary air supplementary hole 2 is located on the top near the fire outlet 1. When the utility model works, the flame 5 is ejected from the fire hole 1, and due to the existence of the secondary air supplementary hole 2, the hot and cold air can be stratified, and because the outer flame temperature of the flame 5 is high, the air can pass through the secondary air supplementary hole 2. Introduce and replenish to the root of the outer flame (the flow direction of the secondary air is shown by the arrow in Figure 2), so that the root of the flame 5 can better supplement the secondary air needed for combustion, so that the combustion is more complete, the combustion efficiency is improved, and the The emission of carbon monoxide, nitrogen oxides and other substances during the combustion process can also effectively control the smoke generated during the combustion process. In this embodiment, the structures of the four secondary air replenishment holes 2 are the same, and the openings at both ends are designed as strips, so as to more effectively supplement the secondary air to the root of the flame 5 . Of course, the shape or area of the opening of the secondary air supplementary hole 2 can be adjusted according to the design power during the processing.

As shown in Figure 3, this embodiment is installed on the outer ring fire cover 7 of the household embedded gas cooker 6, the inner ring fire cover 8 is installed at the center of the outer ring fire cover 7, and the pot support 9 is placed on the outer ring fire cover 7. Outside the cover 7, the cooking utensil 10 is placed on the pot support 9. When the gas cooker 6 is working, through the secondary air replenishment hole 2, the secondary air is better supplemented during the combustion process of the flame 5, so that the combustion is more complete and the combustion efficiency is higher. In addition, it should be pointed out that this embodiment has a wider scope of application and can be applied to gas cookers with any gas source.

The above description is only a preferred embodiment of the present utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, various modifications or improvements can be made to the present utility model, which are all referred to as It is regarded as within the protection scope of the present utility model.

Claims (5)

1. burner fire lid, the sidewall of said fire lid is provided with fire output hole (1), and it is characterized in that: said fire covers near said fire output hole (1) position and also is provided with at least one auxiliary air complementary apertures (2).

2. burner fire lid according to claim 1 is characterized in that: an end opening of described auxiliary air complementary apertures (2) is located at the inboard facade (3) of said fire lid, and the other end opening of auxiliary air complementary apertures (2) is located at the outer side elevation (4) of said fire lid.

3. burner fire lid according to claim 1 and 2 is characterized in that: described auxiliary air complementary apertures (2) is four and evenly distributes along the sidewall border level of fire lid.

4. burner fire lid according to claim 2 is characterized in that: the consistent and equal slivering shape of described auxiliary air complementary apertures (2) openings at two ends size.

5. burner fire lid according to claim 1 is characterized in that: described auxiliary air complementary apertures (2) is positioned at the top of said fire output hole (1).

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