Combustor and gas stove

Abstract

The utility model discloses a burner and a gas stove. The combustor comprises an injection pipe structure, the injection pipe structure comprises at least two injection pipe bodies and at least two air supplement pipes, injection cavities are formed in the injection pipe bodies, and the injection pipe bodies and the air supplement pipes are arranged in a one-to-one correspondence mode. An air outlet of the air supplement pipe is connected with the peripheral side of the injection pipe body and communicates with the injection cavity; the air blowing assembly comprises a support, a draught fan and an air duct structure, the draught fan is installed on the support, the air duct structure comprises an air pipe, a primary air distribution air duct communicated with an air outlet part of the draught fan is formed in the air pipe, and at least two air outlet holes are formed in the primary air distribution air duct. And one air outlet hole is connected with an air inlet of one air supplementing pipe.

Description

Technical Field

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

[0002] The existing scheme for blowing air into the burner generally uses a blower to directly blow air into the mixing tube to increase the primary air volume in the mixing tube. To ensure the blowing effect, the blower is generally installed close to the nozzle. When the blower is damaged, the ejector capacity between the original nozzle and the mixing tube will be affected.

[0003] Therefore, there is an urgent need for an ejector tube structure 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 some extent. For this purpose, the utility model provides a burner. By providing a supplementary air duct in cooperation with a blowing assembly, primary air is supplemented to the ejector tube body, thereby improving the combustion efficiency of the burner. At the same time, when the blowing assembly fails, the ejector effect of the ejector tube structure itself will not be affected, and the ejector tube structure can still operate normally.

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

[0006] A burner, comprising:

[0007] An ejector tube structure, which includes at least two ejector tube bodies and at least two supplementary air ducts. An ejector chamber is formed in the ejector tube body. The ejector tube bodies and the supplementary air ducts are arranged in one-to-one correspondence. The air outlet of the supplementary air duct is connected to the circumferential side of the ejector tube body and communicated with the ejector chamber;

[0008] A blowing assembly, which includes a support, a blower and a duct structure. The blower is installed on the support. The duct structure includes an air duct. A primary air distribution duct communicated with the air outlet part of the blower is formed in the air duct. At least two air outlet holes are formed in the primary air distribution duct. One of the air outlet holes is connected to the air inlet of one of the supplementary air ducts.

[0009] Optionally, the air outlet of the supplementary air duct is communicated with the negative pressure area of the ejector chamber.

[0010] Optionally, the blowing assembly further includes an air regulating nozzle. The air regulating nozzle is installed in the air outlet hole. The air outlet hole is connected to the air inlet of the supplementary air duct through the air regulating nozzle.

[0011] Optionally, the ejector tube body and the supplementary air duct are integrally formed.

[0012] Optionally, there is an included angle θ between the extending direction of the air outlet hole and the extending direction of the primary air distribution air duct.

[0013] Optionally, θ is 90°.

[0014] Optionally, it further includes an air inlet part. The air outlet is arranged at the rear end of the air supply pipe, the air inlet is arranged at the upper side of the front part of the air supply pipe, the air inlet part is arranged at the upper side of the air supply pipe and is communicated with the air inlet. The air inlet part is vertically arranged with respect to the air supply pipe, and the air outlet hole is communicated with the air inlet through the air inlet part.

[0015] Optionally, it further includes a gas nozzle. The air duct is arranged at the front side of the ejector pipe body. An installation part is further arranged at the lower part of the air duct. A nozzle installation hole corresponding to the ejector pipe body is opened on the installation part, and the gas nozzle of the burner is installed in the nozzle installation hole.

[0016] Optionally, it further includes a first connection part and a second connection part that are detachably connected. The air outlet is arranged at the rear end of the air supply pipe, the air inlet is arranged at the front end of the air supply pipe. The first connection part is arranged at the side part of the front end of the ejector pipe body, and the second connection part is arranged on the left side and / or the right side of the air duct. A ventilation hole communicated with the air inlet is opened on the first connection part. The primary air distribution air duct extends along the left-right direction. The air outlet hole is arranged at the rear part of the primary air distribution air duct along the front-rear direction. The air outlet hole is communicated with the air inlet through the ventilation hole, and there is an included angle between the ventilation hole and the air supply pipe.

[0017] On the other hand, the present utility model provides a gas stove, including the above-mentioned burner.

[0018] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0019] The burner provided by the present utility model includes an ejector tube structure and a blower assembly. The ejector tube structure includes at least two ejector tube bodies and at least two air supply pipes. An ejector cavity is formed in each ejector tube body. The ejector tube bodies and the air supply pipes are arranged in one-to-one correspondence. The air outlet of the air supply pipe is connected to the circumferential side of the corresponding ejector tube body and communicates with the ejector cavity. The blower assembly includes a support, a blower, and an air duct structure. The blower is installed on the support. The air duct structure includes an air duct. A primary air distribution duct communicating with the air outlet part of the blower is formed in the air duct. At least two air outlet holes are formed in the primary air distribution duct. One air outlet hole is connected to the air inlet of one air supply pipe. When the blower operates, primary air enters the air supply pipe through the air outlet hole of the primary air distribution duct, and then enters the ejector cavity of the ejector tube body, supplementing primary air to the gas in the ejector cavity, thereby improving the combustion efficiency of the burner. When the blower assembly fails (i.e., the blower fails), it will not affect the ejector effect of the ejector tube structure itself, and the ejector tube structure can still operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 6 is a perspective structural view of the burner provided in the first specific embodiment of the present utility model;

[0021] Figure 2 FIG. 10 is a perspective structural view of the ejector tube structure of the burner provided in the first specific embodiment of the present utility model;

[0022] Figure 3 FIG. Figure 2 is the front view of

[0023] Figure 4 FIG. Figure 3 is the cross-sectional view taken along line A-A in

[0024] Figure 5 FIG. 26 is a perspective structural view of the blower structure of the burner provided in the first specific embodiment of the present utility model;

[0025] Figure 6 FIG. Figure 5 is the exploded view of

[0026] Figure 7 FIG. Figure 5 is the top view of

[0027] Figure 8 FIG. Figure 7 is the cross-sectional view taken along line B-B in

[0028] Figure 9 FIG. 48 is a perspective structural view of the burner provided in the second specific embodiment of the present utility model;

[0029] Figure 10 FIG. 52 is a perspective structural view of the ejector tube structure of the burner provided in the second specific embodiment of the present utility model;

[0030] Figure 11 It is a three-dimensional structure schematic diagram of the air-blowing structure of the burner provided by the second specific embodiment of the present utility model;

[0031] Figure 12 is Figure 11 the top view of;

[0032] Figure 13 is Figure 12 the cross-sectional view at C-C in;

[0033] In the figure:

[0034] 1. Air-blowing assembly; 11. Support; 12. Air duct structure; 120. Primary air distribution duct; 1201. Air outlet hole; 121. Air duct; 122. Nozzle installation hole; 123. Second connection part; 124. Installation part;

[0035] 2. Ejector tube structure; 21. Ejector tube body; 210. Ejector cavity; 22. Supplementary air duct; 221. Air inlet part; 23. First connection part; 231. Ventilation hole;

[0036] 3. Burner head;

[0037] 4. Gas nozzle. Specific embodiments

[0038] 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 implementation manner of the present utility model or equivalently replacing 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.

[0039] Embodiment 1

[0040] Please refer to Figures 1 - 8, the utility model provides a burner, which includes an ejector tube structure 2 and a blower assembly 1. The ejector tube structure 2 includes at least two ejector tube bodies 21 and at least two air supply pipes 22. An ejector chamber 210 is formed in the ejector tube body 21. The ejector tube bodies 21 and the air supply pipes 22 are arranged in one-to-one correspondence. The air outlet of the air supply pipe 22 is connected to the circumferential side of the ejector tube body 21 and communicates with the ejector chamber 210. The blower assembly 1 includes a support 11, a blower and an air duct structure 12. The blower is installed on the support 11. The air duct structure 12 includes an air duct 121. A primary air distribution duct 120 communicating with the air outlet part of the blower is formed in the air duct 121. At least two air outlet holes 1201 are formed in the primary air distribution duct 120. One air outlet hole 1201 is connected to the air inlet of one air supply pipe 22. When the blower operates, the primary air enters the air supply pipe 22 through the air outlet hole 1201 of the primary air distribution duct 120, and then enters the ejector chamber 210 of the ejector tube body 21 to supplement the primary air for the gas in the ejector chamber 210, thereby improving the combustion efficiency of the burner. When the blower assembly 1 fails (i.e., the blower fails), it will not affect the ejector effect of the ejector tube structure 2 itself, and the ejector tube structure 2 can operate as usual.

[0041] Optionally, the air outlet of the air supply pipe 22 communicates with the negative pressure area of the ejector chamber 210, so that the gas cannot enter the primary air distribution channel through the air supply pipe 22 under the negative pressure of the ejector chamber 210.

[0042] Optionally, the blower assembly 1 further includes an air regulating nozzle. The air regulating nozzle is installed in the air outlet hole 1201. The air outlet hole 1201 is connected to the air inlet of the air supply pipe 22 through the air regulating nozzle. By setting the air regulating nozzle, different amounts of primary air can be provided for different ejector tube bodies 21, realizing the adjustability of the amount of primary air provided for different ejector tube bodies 21, 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.

[0043] Optionally, the ejector tube body 21 and the air supply pipe 22 are integrally formed, with simple structure, good stability and high airtightness.

[0044] Optionally, an included angle θ exists 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 ejector chamber 210, thereby reducing the influence on the gas flow in the ejector chamber 210, improving the primary air at the same time, and reducing the flue gas and enhancing the thermal efficiency.

[0045] 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.

[0046] Optionally, it further includes an air inlet part 221. The air outlet is arranged at the rear end of the air supply pipe 22, the air inlet is arranged at the upper side of the front part of the air supply pipe 22, the air inlet part 221 is arranged at the upper side of the air supply pipe 22 and communicated with the air inlet. The air inlet part 221 is vertically arranged with the air supply pipe 22. The air outlet hole 1201 is communicated with the air inlet through the air inlet part 221. The air inlet part 221 is vertically arranged with the air supply pipe 22. The air outlet hole 1201 is communicated with the air inlet through the air inlet part 221, so that the primary air turns again between the air inlet part 221 and the air supply pipe 22, thereby reducing the flow velocity of the primary air again, and further reducing the influence of the primary air on the flow of the gas in the mixing chamber 210.

[0047] Optionally, the primary air distribution duct 120 extends in the left - right direction, and the air outlet holes 1201 are arranged vertically at the bottom of the primary air distribution duct 120.

[0048] Optionally, a first connecting part 23 is arranged in the middle at the rear side of the air duct 121. A second connecting part 123 corresponding to the first connecting part 23 is arranged on the upper side of the ejector pipe body 21. The first connecting part 23 and the second connecting part 123 are connected by screws to realize the detachable connection between the air duct 121 and the ejector pipe body 21.

[0049] Optionally, it further includes a gas nozzle 4. The gas nozzle 4 is arranged at the front side of the ejector pipe body 21 and is opposite to and spaced from the ejector pipe body 21.

[0050] On the other hand, the present utility model provides a gas stove, including the above - mentioned burner.

[0051] Optionally, it further includes a burner head 3. The rear end of the ejector pipe body 21 is connected to the burner head 3.

[0052] Embodiment Two

[0053] Please refer to Figures 9 - 13 , the difference between Embodiment Two and Embodiment One is that the air duct 121 is arranged at the front side of the ejector pipe body 21. An installation part 124 is further arranged at the lower part of the air duct 121. A nozzle installation hole 122 corresponding to the ejector pipe body 21 is opened on the installation part 124. The gas nozzle 4 of the burner is installed in the nozzle installation hole 122, thus facilitating the installation of the gas nozzle 4.

[0054] Optionally, the air outlet is arranged at the rear end of the make-up air duct 22, the air inlet is arranged at the front end of the make-up air duct 22, the first connecting part 23 is arranged at the side part of the front end of the ejector pipe body 21, the second connecting part 123 is arranged on the left side and / or the right side of the air duct 121, a ventilation hole 231 communicating with the air inlet is formed in the first connecting part 23, the air outlet hole 1201 of the air blowing assembly 1 is communicated with the air inlet through the ventilation hole 231, the primary air distribution duct 120 extends along the left-right direction, the air outlet hole 1201 is arranged at the rear part of the primary air distribution duct 120 along the front-rear direction, the air outlet hole 1201 is communicated with the air inlet through the ventilation hole 231, and an included angle is formed between the ventilation hole 231 and the make-up air duct 22 to facilitate the deceleration of the primary air.

[0055] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A burner, characterized in that, Comprising: An ejector tube structure (2), the ejector tube structure (2) comprising at least two ejector tube bodies (21) and at least two air supply pipes (22). An ejector chamber (210) is formed in the ejector tube body (21). The ejector tube bodies (21) and the air supply pipes (22) are arranged in one-to-one correspondence. The air outlet of the air supply pipe (22) is connected to the peripheral side of the ejector tube body (21) and communicates with the ejector chamber (210). A blower assembly (1), the blower assembly comprising a support (11), a blower (13) and an air duct structure (12). The blower (13) is installed on the support (11). The air duct structure (12) comprises an air duct (121). A primary air distribution duct (120) communicating with the air outlet part (131) of the blower (13) is formed in the air duct (121). At least two air outlet holes (1201) are formed in the primary air distribution duct (120). One air outlet hole (1201) is connected to the air inlet of one air supply pipe (22).

2. The burner according to claim 1, characterized in that, The air outlet of the air supply pipe (22) communicates with the negative pressure area of the ejector chamber (210).

3. The burner according to claim 1, characterized in that, The blower assembly (1) further comprises an air regulating nozzle (14). The air regulating nozzle (14) is installed in the air outlet hole (1201). The air outlet hole (1201) is connected to the air inlet of the air supply pipe (22) through the air regulating nozzle (14).

4. The burner according to claim 1, characterized in that, The ejector tube body (21) and the air supply pipe (22) are integrally formed.

5. The burner according to claim 1, characterized in that, An included angle θ exists between the extending direction of the air outlet hole (1201) and the extending direction of the primary air distribution duct (120).

6. The burner according to claim 5, characterized in that, θ is 90°.

7. The burner according to any one of claims 1 to 3, characterized in that, It further comprises an air inlet part (221). The air outlet is arranged at the rear end of the air supply pipe (22). The air inlet is arranged on the upper side of the front part of the air supply pipe (22). The air inlet part (221) is arranged on the upper side of the air supply pipe (22) and communicates with the air inlet. The air inlet part (221) is perpendicular to the air supply pipe (22). The air outlet hole (1201) communicates with the air inlet through the air inlet part (221).

8. The burner according to any one of claims 1-5, characterized in that, It further comprises a gas nozzle (4). The air duct (121) is arranged at the front side of the ejector tube body (21). An installation part (124) is further arranged at the lower part of the air duct (121). A nozzle installation hole (122) corresponding to the ejector tube body (21) is formed in the installation part (124). The gas nozzle (4) of the burner is installed in the nozzle installation hole (122).

9. The burner according to claim 8, characterized in that, It further includes a first connecting part (23) and a second connecting part (123) which are detachably connected. The air outlet is arranged at the rear end of the air supply duct (22), the air inlet is arranged at the front end of the air supply duct (22), the first connecting part (23) is arranged at the side part of the front end of the ejector pipe body (21), the second connecting part (123) is arranged at the left side and / or the right side of the air duct. A ventilation hole (231) communicating with the air inlet is formed in the first connecting part (23). The primary air distribution air duct (120) extends along the left-right direction, and the air outlet holes (1201) are arranged in the rear part of the primary air distribution air duct (120) along the front-rear direction. The air outlet holes (1201) are communicated with the air inlet through the ventilation hole (231), and an included angle is formed between the ventilation hole (231) and the air supply duct (22).

10. A gas stove, characterized in that, It includes the burner according to any one of claims 1-9.

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