A gas burner

Abstract

The utility model relates to a kind of gas stove head, including fire seat and first injection pipe, first gas cavity is equipped in fire seat, first gas cavity forms lower gas layer and upper gas layer along by lower to upper distribution, the position of fire seat corresponding lower gas layer is connected with first injection pipe, first injection pipe is communicated with first gas cavity by lower gas layer, lower gas layer and upper gas layer between are equipped with the flow guide surface for guiding airflow from lower gas layer into upper gas layer, the included angle a between flow guide surface and horizontal plane is formed, 85°≤a≤90°, by optimizing the structure of flow guide surface, relative increase the inclination angle between flow guide surface and horizontal plane, mixed gas is diffused in first gas cavity at relatively slow speed under the action of flow guide surface, it is favorable to make mixed gas more fully mixed, to improve the combustion heat efficiency of equipment, reduce the carbon monoxide content generated by combustion.

Description

Technical Field

[0001] This utility model relates to the technical field of gas equipment, specifically to a gas burner head. Background Technology

[0002] Patent document CN212869760U discloses a cleanable burner head, specifically including "a cleanable burner head, comprising a furnace cavity and an ejector tube. The furnace cavity is provided with a central mixing chamber and an outer ring mixing chamber. The ejector tube is provided with a central ejector tube and an outer ring ejector tube. The central ejector tube is connected to the central mixing chamber, and the outer ring ejector tube is connected to the outer ring mixing chamber. The outer ring ejector tube is sequentially provided with an inlet end, an ejector section, and a mixing section. The mixing section includes an inclined section and a vertical section. The vertical section connects the inclined section and the outer ring mixing chamber. By providing an inclined section and a vertical section at the mixing end, the mixed gas undergoes multiple changes of direction from the ejector section to the outer ring mixing chamber, resulting in more uniform mixing of the mixed gas and improved combustion efficiency."

[0003] After the outer ring ejector tube of the burner enters the outer ring mixing chamber, it diffuses within the outer ring mixing chamber after being guided by the inclined and vertical sections. Due to the relatively gentle inclination of the inclined section, the mixed gas rises relatively quickly. There is a greater chance that the mixed gas will be guided to the upper side of the outer ring mixing chamber and ejected outward to participate in combustion before it is fully mixed. As a result, there is still considerable room for improvement in the thermal efficiency and carbon monoxide content of the equipment.

[0004] Therefore, further improvements are needed. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a gas burner head. By optimizing the structure of the guide surface and relatively increasing the inclination angle between the guide surface and the horizontal plane, the mixed gas diffuses in the first gas distribution chamber at a relatively slow speed under the action of the guide surface, which is conducive to more complete mixing of the mixed gas, thereby improving the combustion thermal efficiency of the equipment and reducing the carbon monoxide content produced by combustion.

[0006] The purpose of this utility model is achieved as follows:

[0007] A gas burner head includes a burner seat and a first injector tube. The burner seat has a first gas distribution chamber, which forms a lower gas distribution layer and an upper gas distribution layer distributed from bottom to top. The burner seat is connected to the first injector tube at the position corresponding to the lower gas distribution layer. The first injector tube communicates with the first gas distribution chamber through the lower gas distribution layer. A guide surface is provided between the lower gas distribution layer and the upper gas distribution layer to guide the airflow from the lower gas distribution layer to the upper gas distribution layer. The guide surface forms an angle α with the horizontal plane, where 85°≤α≤90°.

[0008] As a specific embodiment, the lower side of the guide surface is connected to the windward surface, the extension direction of the air outlet end of the first ejector tube corresponds to the windward surface, and the windward surface is inclined from bottom to top in a direction away from the air outlet end of the first ejector tube.

[0009] As a specific embodiment, the angle between the guide surface and the extension direction of the first ejector tube outlet is b, where b is an acute angle and 48°≤b≤53°.

[0010] As a specific embodiment, a guide section is provided between the upper and lower gas distribution layers to guide the airflow from the upper gas distribution layer into the lower gas distribution layer. The guide section has a continuously bent stepped shape and is located on the other side of the guide surface inside the first fire chamber.

[0011] As a specific embodiment, a supplementary air chamber is provided on the inner side of the fire distribution base adjacent to the outer side of the first air distribution chamber, and a supplementary air hole is provided on the fire distribution base for allowing external air to enter the supplementary air chamber.

[0012] As a specific embodiment, the air supply hole is located on the bottom outer side of the upper air distribution layer on the ignition seat.

[0013] As a specific embodiment, a second gas distribution chamber is provided at the inner center of the fire distribution seat. The second gas distribution chamber is connected to a second ejector tube. The first gas distribution chamber is arranged circumferentially around the outside of the second gas distribution chamber. The gas replenishment chamber is located between the first gas distribution chamber and the second gas distribution chamber.

[0014] The beneficial effects of this utility model are:

[0015] By optimizing the structure of the guide surface and relatively increasing the inclination angle between the guide surface and the horizontal plane, the mixed gas diffuses in the first gas distribution chamber at a relatively slow speed under the action of the guide surface, which helps to make the mixed gas more fully mixed, thereby improving the combustion thermal efficiency of the equipment and reducing the carbon monoxide content produced by combustion. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 .

[0018] Figure 3 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 .

[0019] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 3 . Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] See Figures 1-4 This gas burner head includes a burner seat 1 and a first injector tube 21. The burner seat 1 has a first gas distribution chamber 11, which forms a lower gas distribution layer 111 and an upper gas distribution layer 112 distributed from bottom to top. The burner seat 1 is connected to the first injector tube 21 at the position corresponding to the lower gas distribution layer 111. The first injector tube 21 communicates with the first gas distribution chamber 11 through the lower gas distribution layer 111. There is a space between the lower gas distribution layer 111 and the upper gas distribution layer 112 for guiding the airflow from the lower gas distribution layer 111 into the upper gas distribution layer 112. The guide surface 113 of the upper gas distribution layer 112 forms an angle α with the horizontal plane, 85°≤a≤90°. By optimizing the structure of the guide surface 113, the inclination angle between the guide surface 113 and the horizontal plane is relatively increased. Under the action of the guide surface 113, the mixed gas diffuses in the first gas distribution chamber 11 at a relatively slow speed, which is conducive to more complete mixing of the mixed gas, thereby improving the combustion thermal efficiency of the equipment and reducing the carbon monoxide content produced by combustion.

[0022] Furthermore, the lower side of the guide surface 113 is connected to the windward surface 114. The extension direction of the air outlet end of the first ejector tube 21 corresponds to the windward surface 114. The windward surface 114 is inclined from bottom to top in a direction away from the air outlet end of the first ejector tube 21. The windward surface 114 can guide the flow to the guide surface 113, reduce the chance of the mixed gas turning back towards the first ejector tube 21, and allow the mixed gas to diffuse in the first gas distribution chamber 11 in a more stable flow direction.

[0023] Furthermore, the angle between the guide surface 113 and the extended direction of the first ejector tube 21 is b, where b is an acute angle and 48°≤b≤53°. This increases the tendency of the mixed gas to diffuse circumferentially after contacting the guide surface 113, making the mixed gas distribution in the first gas distribution chamber 11 more uniform.

[0024] Furthermore, a guide section 115 is provided between the upper gas distribution layer 112 and the lower gas distribution layer 111 to guide the airflow from the upper gas distribution layer 112 into the lower gas distribution layer 111. The guide section 115 has a continuously bent stepped shape and is located on the other side of the guide surface 113 in the first fire chamber. The first ejector tube 21 generates negative pressure in the lower gas distribution layer 111. With the help of the guide section 115, some of the airflow in the upper gas distribution layer 112 can flow back to the lower gas distribution layer 111, making the airflow in the first gas distribution chamber 11 have a tendency to move in a ring. This is beneficial to the uniform gas mixing effect in the first gas distribution chamber 11. At the same time, the guide section 115 relatively increases the distance the mixed gas travels from the upper gas distribution layer 112 to the lower gas distribution layer 111, making the diffusion effect of the mixed gas more uniform and the mixing more complete.

[0025] Furthermore, an air supply chamber 13 is provided on the inner side of the fire distribution seat 1 adjacent to the outer side of the first air distribution chamber 11. The fire distribution seat 1 is provided with an air supply hole 131 for allowing external air to enter the air supply chamber 13. The air supply hole 131 can supplement the air supply chamber 13 with air, and the flame generated by combustion can react with more sufficient oxygen, thereby further improving the combustion efficiency of the equipment and reducing the carbon monoxide content generated by combustion.

[0026] Furthermore, the air inlet 131 is located on the outer bottom of the upper air distribution layer 112 on the ignition seat 1. As the air passes through the air inlet 131, it can also cool the upper air distribution layer 112, thereby reducing the pressure difference between the upper air distribution layer 112 and the lower air distribution layer 111 to a certain extent. This prevents the mixed gas from entering the upper air distribution layer 112 from the lower air distribution layer 111 too quickly, allowing the mixed gas to have more time to mix. This further helps to improve the combustion thermal efficiency of the equipment and reduce the carbon monoxide content produced by combustion.

[0027] Furthermore, a second gas distribution chamber 12 is provided at the inner center of the flame distribution base 1. The second gas distribution chamber 12 is connected to a second ejector tube 22. The first gas distribution chamber 11 is arranged circumferentially around the outside of the second gas distribution chamber 12. The gas supply chamber 13 is arranged between the first gas distribution chamber 11 and the second gas distribution chamber 12. The second gas distribution chamber 12 can generate a central flame. The gas supply chamber 13 can simultaneously supplement oxygen to the outer ring flame generated by the first gas distribution chamber 11 and the central flame generated by the second gas distribution chamber 12, so that the flame combustion is more complete, which is conducive to improving the combustion thermal efficiency of the equipment and reducing the carbon monoxide content generated by combustion.

[0028] The following are the specific experimental parameters for gas burners using natural gas as fuel in the prior art and the gas burner claimed in this utility model:

[0029]

[0030] The following are the specific experimental parameters for gas burners using liquefied petroleum gas (LPG) as fuel in the prior art and the gas burner claimed in this utility model:

[0031]

[0032] The above embodiments are merely preferred embodiments of this utility model, and other implementations are also possible. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope set forth in the claims of this application.

Claims

1. A gas burner head, comprising a burner seat (1) and a first injector tube (21), wherein the burner seat (1) is provided with a first gas distribution chamber (11), the first gas distribution chamber (11) forming a lower gas distribution layer (111) and an upper gas distribution layer (112) distributed from bottom to top, the burner seat (1) being connected to the first injector tube (21) at a position corresponding to the lower gas distribution layer (111), the first injector tube (21) being connected to the first gas distribution chamber (11) through the lower gas distribution layer (111), characterized in that, A guide surface (113) is provided between the lower gas layer (111) and the upper gas layer (112) to guide the airflow from the lower gas layer (111) into the upper gas layer (112). The guide surface (113) forms an angle α with the horizontal plane, where 85°≤α≤90°.

2. The gas burner head according to claim 1, characterized in that: The lower side of the guide surface (113) is connected to the windward surface (114). The extension direction of the air outlet of the first ejector tube (21) corresponds to the direction of the windward surface (114). The windward surface (114) is inclined from bottom to top in a direction away from the air outlet of the first ejector tube (21).

3. The gas burner head according to claim 1, characterized in that: The angle between the guide surface (113) and the extended direction of the air outlet of the first ejector tube (21) is b, where b is an acute angle and 48°≤b≤53°.

4. The gas burner head according to claim 1, characterized in that: Between the upper gas distribution layer (112) and the lower gas distribution layer (111), there is a flow guide (115) for guiding the airflow from the upper gas distribution layer (112) into the lower gas distribution layer (111). The flow guide (115) is in the shape of a continuously bent stepped structure and is located on the other side of the first fire chamber opposite to the flow guide surface (113).

5. The gas burner head according to any one of claims 1-4, characterized in that: The inner side of the fire-splitting base (1) is adjacent to the outer side of the first air-splitting chamber (11) and a supplementary air chamber (13) is provided on the fire-splitting base (1). The fire-splitting base (1) is provided with a supplementary air hole (131) for allowing external air to enter the supplementary air chamber (13).

6. The gas burner head according to claim 5, characterized in that: The air supply hole (131) is located on the bottom outer side of the upper air distribution layer (112) on the fire distribution seat (1).

7. The gas burner head according to claim 5, characterized in that: The inner center of the fire distribution seat (1) is provided with a second gas distribution chamber (12), the second gas distribution chamber (12) is connected to a second ejector tube (22), the first gas distribution chamber (11) is arranged around the outside of the second gas distribution chamber (12) in the circumferential direction, and the gas replenishment chamber (13) is arranged between the first gas distribution chamber (11) and the second gas distribution chamber (12).

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