Blast assembly, burner and gas stove

Abstract

The utility model discloses a blast assembly, a burner and a gas stove. The air blowing assembly comprises a support; the fan is mounted on the support; the air duct structure comprises an air pipe, a primary air distribution air duct communicated with the air outlet of the fan is formed in the air pipe, and at least two air outlet holes are formed in the primary air distribution air duct; and the air conditioning nozzle is installed in the air outlet hole, and the air outlet hole is communicated with a negative pressure area of an injection pipe of the combustor through the air conditioning nozzle. The utility model provides an air blowing assembly which can provide primary air of different amounts for outer ring flames and inner ring flames of a combustor so as to meet different combustion requirements and improve combustion efficiency. And the influence on the flowing of the fuel gas in the injection pipe is small.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a blower assembly, a burner and a gas stove. Background Art

[0002] Generally, a two-ring burner is provided with an inner-ring flame and an outer-ring flame, and a three-ring burner is provided with an inner-ring flame, a middle-ring flame and an outer-ring flame. Generally, a single blower only blows air to one of the flames of the burner. If the multi-ring flame burner is blown air in the existing manner, multiple blowers need to be installed, the installation space is limited, the cost is high, and it is difficult to control the air volume blown to different ring flames, and the control method is also complicated.

[0003] Therefore, there is an urgent need for a blower assembly to solve the above problems. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the utility model provides a blower assembly, which can provide different amounts of primary air for the outer-ring flame and the inner-ring flame of the burner to meet different combustion requirements and improve the combustion efficiency. And it has little influence on the flow of the gas in the ejector pipe.

[0005] The above object is achieved by the following technical solutions:

[0006] A blower assembly, comprising:

[0007] A support;

[0008] A blower, installed on the support;

[0009] An air duct structure, including an air duct, and a primary air distribution duct communicated with the air outlet of the blower is arranged in the air duct, and at least two air outlet holes are arranged on the primary air distribution duct;

[0010] An air regulating nozzle, installed in the air outlet hole, and the air outlet hole is communicated with the negative pressure area of the ejector pipe of the burner through the air regulating nozzle.

[0011] Optionally, an included angle θ exists between the extending direction of the air outlet hole and the extending direction of the primary air distribution duct.

[0012] Optionally, θ is 90°.

[0013] Optionally, a connecting part is further arranged on the air duct, and the air duct is connected with the ejector pipe through the connecting part.

[0014] Optionally, the connecting part is arranged in the middle of the rear side of the air duct.

[0015] Optionally, the primary air distribution duct extends in the left - right direction, and the air outlet holes are opened in the vertical direction at the bottom of the primary air distribution duct.

[0016] Optionally, an installation part is further provided at the lower part of the air duct. A nozzle installation hole corresponding to the ejector pipe is opened on the installation part, and the gas nozzle of the burner is installed in the nozzle installation hole.

[0017] Optionally, the primary air distribution duct extends in the left - right direction, and the air outlet holes are arranged in the front - back direction at the rear part of the primary air distribution duct.

[0018] On the other hand, the present utility model provides a burner, which includes a burner head, an ejector pipe, and the above - mentioned air - blowing assembly. The rear end of the ejector pipe is communicated with the burner head, and the front part of the ejector pipe is communicated with the air - regulating nozzle.

[0019] On yet another aspect, the present utility model provides a gas stove, which includes the above - mentioned burner.

[0020] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0021] The air - blowing assembly provided by the present utility model includes a support, a fan, a duct structure, and an air - regulating nozzle. The fan is installed on the support. The duct structure includes an air duct. A primary air distribution duct communicated with the air outlet of the fan is opened in the air duct, and at least two air outlet holes are opened on the primary air distribution duct. The air - regulating nozzle is installed in the air outlet hole. The air outlet hole is communicated with the negative - pressure area of the ejector pipe of the burner through the air - regulating nozzle to provide sufficient primary air for the ejector pipe. At the same time, by setting the air - regulating nozzle, different amounts of primary air can be provided for different ejector pipes, realizing the adjustability of the amount of primary air provided for different ejector pipes, and further meeting the requirements of different amounts of primary air for the outer - ring flame, inner - ring flame, and middle - ring flame of the burner during combustion. Moreover, the air outlet hole is communicated with the negative - pressure area of the ejector pipe of the burner through the air - regulating nozzle, so that the gas will not enter the primary air distribution channel through the air - regulating nozzle under the negative pressure of the ejector pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three - dimensional structural schematic diagram of the air - blowing assembly provided by the first specific embodiment of the present utility model;

[0023] Figure 2 is Figure 1 exploded view of

[0024] Figure 3 is Figure 1 top view of

[0025] Figure 4 isFigure 3 Cross-sectional view taken along line A-A;

[0026] Figure 5 Schematic perspective view of the burner provided by the first specific embodiment of the present utility model;

[0027] Figure 6 Schematic perspective view of the air blowing assembly provided by the second specific embodiment of the present utility model;

[0028] Figure 7 is Figure 6 top view of;

[0029] Figure 8 is Figure 7 Cross-sectional view taken along line B-B in;

[0030] Figure 9 Schematic perspective view of the burner provided by the second specific embodiment of the present utility model.

[0031] In the figure:

[0032] 1. Air blowing assembly; 11. Support; 12. Air duct structure; 13. Fan; 14. Air conditioning nozzle; 121. Air duct; 120. Primary air distribution duct; 1201. Air outlet hole; 122. Nozzle mounting hole; 123. Connection part; 124. Mounting part;

[0033] 2. Ejector tube;

[0034] 3. Burner head;

[0035] 4. Gas nozzle. Specific embodiments

[0036] The following embodiments are used to illustrate the present utility model, but the present utility model is not limited by these embodiments. Modifying the specific embodiments of the present utility model or making equivalent replacements for some technical features without departing from the spirit of the present utility model scheme shall all be covered within the scope of the technical solution claimed by the present utility model.

[0037] Embodiment 1

[0038] Please refer to Figures 1-5, the present utility model provides a blower assembly, which includes a support 11, a blower 13, an air duct structure 12 and an air conditioning nozzle 14. The blower 13 is installed on the support 11. The air duct structure 12 includes an air duct 121, and a primary air distribution duct 120 communicating with the air outlet of the blower 13 is provided in the air duct 121. At least two air outlet holes 1201 are provided on the primary air distribution duct 120. The air conditioning nozzle 14 is installed in the air outlet hole 1201, and the air outlet hole 1201 communicates with the negative pressure area of the injection pipe 2 of the burner through the air conditioning nozzle 14 to provide sufficient primary air for the injection pipe 2. At the same time, by setting the air conditioning nozzle 14, different amounts of primary air can be provided for different injection pipes 2, realizing the adjustability of the amount of primary air provided for different injection pipes 2, and further meeting the requirements of different amounts of primary air for the outer ring flame, inner ring flame and middle ring flame of the burner during combustion. Moreover, the air outlet hole 1201 communicates with the negative pressure area of the injection pipe 2 of the burner through the air conditioning nozzle 14, so that the gas will not enter the primary air distribution channel through the air conditioning nozzle 14 under the negative pressure of the injection pipe 2.

[0039] Optionally, there is an included angle θ between the extending direction of the air outlet hole 1201 and the extending direction of the primary air distribution duct 120, so that the primary air enters the air outlet hole 1201 through turning after passing through the primary air distribution duct 120, changing the flow direction of the primary air, realizing the deceleration of the primary air. The decelerated primary air then enters the injection pipe 2, thereby reducing the influence on the gas flow in the injection pipe 2, and at the same time increasing the primary air, further reducing the flue gas and improving the thermal efficiency.

[0040] Optionally, θ is 90°, so as to set the turning angle of the primary air to the maximum angle, greatly reducing the flow velocity of the primary air, thereby reducing the influence of the primary air entering the injection pipe 2 on the gas flow in the injection pipe 2.

[0041] Optionally, a connecting part 123 is further provided on the air duct 121, and the air duct 121 is connected to the injection pipe 2 through the connecting part 123 to realize the installation of the air duct 121.

[0042] Optionally, the connecting part 123 is arranged in the middle of the rear side of the air duct 121 to facilitate the connection between the connecting part 123 and the upper end of the injection pipe 2.

[0043] Optionally, the primary air distribution duct 120 extends in the left-right direction, and the air outlet hole 1201 is opened vertically at the bottom of the primary air distribution duct 120.

[0044] On the other hand, the present utility model provides a burner, which includes a burner head 3, an injection pipe 2 and the above-mentioned blower assembly 1. The rear end of the injection pipe 2 communicates with the burner head 3, and the front part of the injection pipe 2 communicates with the air conditioning nozzle 14.

[0045] In another aspect, the present utility model provides a gas stove, which includes the above burner.

[0046] Embodiment 2

[0047] Please refer to Figures 6-9 , the difference between Embodiment 2 and Embodiment 1 is that an installation part 124 is further provided at the lower part of the air duct 121, and a nozzle installation hole 122 corresponding to the injection pipe 2 is formed on the installation part 124, and the gas nozzle 4 of the burner is installed in the nozzle installation hole 122, so as to facilitate the installation of the gas nozzle 4.

[0048] Optionally, the primary air distribution air duct 120 extends in the left - right direction, and the air outlet holes 1201 are arranged in the rear part of the primary air distribution air duct 120 in the front - rear direction to facilitate connection with the injection pipe 2.

[0049] Optionally, the connecting part 123 is arranged at the left end and / or the right end of the air duct 121 to facilitate connection with the injection pipe 2.

[0050] The above are only some embodiments of the present utility model. For those of ordinary skill in the art, without departing from the inventive concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A blast assembly, characterized in that: include: Support (11); A fan (13) is mounted on the support (11); An air duct structure (12) comprises an air duct (121), wherein a primary air distribution duct (120) connected to an air outlet (131) of the fan (13) is provided in the air duct (121), and at least two air outlet holes (1201) are provided in the primary air distribution duct (120); An air conditioning nozzle (14) is installed in the air outlet hole (1201), and the air outlet hole (1201) is connected to the negative pressure area of ​​the ejector pipe of the burner through the air conditioning nozzle (14).

2. The air blowing assembly according to claim 1, characterized in that: An angle θ is formed between the extension direction of the air outlet (1201) and the extension direction of the primary air distribution duct (120).

3. The air blowing assembly according to claim 2, characterized in that: θ is 90°.

4. The air blowing assembly according to claim 1, characterized in that: The air duct (121) is also provided with a connecting portion (123), and the air duct (121) is connected to the ejector pipe via the connecting portion (123).

5. The air blowing assembly according to claim 4, characterized in that: The connecting portion (123) is arranged in the middle of the rear side of the air duct (121).

6. The air blowing assembly according to any one of claims 1 to 4, characterized in that: The primary air distribution duct (120) is extended in the left-right direction, and the air outlet hole (1201) is opened at the bottom of the primary air distribution duct (120) in the vertical direction.

7. The air blowing assembly according to any one of claims 1 to 4, characterized in that: The lower part of the air duct (121) is also provided with a mounting portion (124), the mounting portion (124) is provided with a nozzle mounting hole (122) corresponding to the ejector pipe, and the gas nozzle (4) of the burner is mounted in the nozzle mounting hole (122).

8. The air blowing assembly according to claim 6, characterized in that: The primary air distribution duct (120) is extended in the left-right direction, and the air outlet (1201) is arranged at the rear of the primary air distribution duct (120) in the front-back direction.

9. A burner, characterized in that: It comprises a furnace head (3), an ejector pipe (2) and an air blast assembly (1) as claimed in any one of claims 1 to 8, wherein the rear end of the ejector pipe (2) is connected to the furnace head (3), and the front part of the ejector pipe (2) is connected to the air conditioning nozzle (14).

10. A gas stove, characterized in that: Comprising the burner as claimed in claim 9.

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