Combustor and stove

Abstract

The utility model provides a burner and a stove, and belongs to the technical field of kitchen equipment. The combustor comprises a combustor body, an air blowing channel, an air blowing device and an air flow limiting part. The combustor body comprises a furnace end and an injection channel communicating with the furnace end. The first end of the air blowing channel is fixedly connected to the injection channel and communicates with the injection channel. The blower device comprises a fan and a mounting seat, an air duct is formed in the mounting seat, and the air duct is communicated with an air outlet of the fan; the two ends of the air flow limiting part communicate with the air channel and the second end of the air blowing channel correspondingly, and the air flow limiting part is configured to limit the air flow flowing to the air blowing channel.

Description

Technical Field

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

[0002] The general air-blowing scheme of the existing burner is that a blower directly blows air to the air inlet of an ejector tube to increase the primary air volume of the ejector tube. Since the installation of the blower or the blower base is relatively close to the air inlet and the nozzle of the ejector tube, when the blower is damaged, the ejector ability of the original nozzle will be affected, resulting in insufficient primary air. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a burner which has an independent air-blowing channel. The blower blows air into the ejector channel and the burner head through the independent air-blowing channel, so as to increase the primary air volume and realize uniform mixing of gas and air, thereby improving the combustion efficiency. Since the independent air-blowing channel is provided, when the blower or the independent air-blowing channel is damaged, it will not affect the intake of primary air by the air inlet of the ejector channel.

[0004] To achieve the purpose of the utility model, the following technical scheme is adopted:

[0005] According to one aspect of the utility model, a burner is provided, which comprises a burner body, an air-blowing channel, an air-blowing device and an air flow limiting part. The burner body comprises a burner head and an ejector channel communicated with the burner head; the first end of the air-blowing channel is fixedly connected to the ejector channel and communicated with the ejector channel; the air-blowing device comprises a blower and a mounting seat, and an air duct is arranged in the mounting seat and communicated with the air outlet of the blower; both ends of the air flow limiting part are respectively communicated with the air duct and the second end of the air-blowing channel, and the air flow limiting part is configured to limit the air flow rate flowing to the air-blowing channel.

[0006] In a preferred embodiment of the utility model, an inner ring cavity and an outer ring cavity are arranged around the burner head. The ejector channel comprises a first ejector tube and a second ejector tube. The first ejector tube is communicated with the inner ring cavity, and the second ejector tube is communicated with the outer ring cavity. The air-blowing channel comprises a first air-blowing tube and a second air-blowing tube. The first end of the first air-blowing tube is communicated with the first ejector tube, and the first end of the second air-blowing tube is communicated with the second ejector tube. The air flow limiting part comprises a first air nozzle and a second air nozzle. Both ends of the first air nozzle are respectively communicated with the air duct and the second end of the first air-blowing tube, and both ends of the second air nozzle are respectively communicated with the air duct and the second end of the second air-blowing tube.

[0007] In a preferred embodiment of the present utility model, the burner head further surrounds a middle ring cavity. The middle ring cavity is located between the inner ring cavity and the outer ring cavity. The injection channel further includes a third injection pipe, and the third injection pipe communicates with the middle ring cavity. The air supply channel further includes a third air supply pipe. One end of the third air supply pipe is fixedly connected to the third injection pipe and communicates with the third injection pipe. The air flow limiting portion further includes a third air nozzle. Two ends of the third air nozzle are respectively communicated with the air duct and the second end of the third air supply pipe.

[0008] In a preferred embodiment of the present utility model, the diameters of the air channels of the first air nozzle, the second air nozzle, and the third air nozzle are successively an equal-diameter section and a diameter reduction section from the air inlet to the air outlet.

[0009] In a preferred embodiment of the present utility model, the mounting seat includes a transverse pipe and three first vertical joints fixedly connected to the transverse pipe. The first air nozzle, the second air nozzle, and the third air nozzle are respectively installed in the three first vertical joints. Second vertical joints are provided at the second ends of the first air supply pipe, the second air supply pipe, and the third air supply pipe. The three first vertical joints are respectively inserted into the three second vertical joints.

[0010] In a preferred embodiment of the present utility model, the mounting seat is located above the air supply channel and the injection channel; or the mounting seat is located below the air supply channel and the injection channel.

[0011] In a preferred embodiment of the present utility model, it further includes three gas nozzles. The mounting seat is disposed opposite to the air inlets of the first injection pipe, the second injection pipe, and the third injection pipe with a spacing therebetween. Nozzle mounting portions are provided on the mounting seat corresponding to the air inlets of the first injection pipe, the second injection pipe, and the third injection pipe. The three gas nozzles are respectively installed on the three nozzle mounting portions.

[0012] In a preferred embodiment of the present utility model, the air duct includes a transverse cavity and three vertical cavities. The three vertical cavities are spaced apart and all communicate with the transverse cavity. The first air nozzle, the second air nozzle, and the third air nozzle respectively communicate with the three vertical cavities.

[0013] In a preferred embodiment of the present utility model, the included angle between the air supply channel and the injection channel is 5 - 45 degrees.

[0014] The present utility model also discloses a cooking appliance including the above burner.

[0015] One embodiment of the present utility model has the following advantages or beneficial effects:

[0016] The air duct, air flow limiting part and air blowing channel of the burner of the present utility model jointly form an independent air blowing channel. The blower blows air into the ejector channel and the burner head through the independent air blowing channel, so as to increase the primary air volume and achieve uniform mixing of gas and air, thereby improving the combustion efficiency. When the blower or the independent air blowing channel is damaged, it will not affect the intake of primary air at the air inlet of the ejector channel. Description of the Drawings

[0017] By referring to the drawings and describing its exemplary embodiments in detail, the above and other features and advantages of the present utility model will become more obvious.

[0018] Figure 1 is a perspective view of a burner shown according to an exemplary embodiment.

[0019] Figure 2 is a transverse cross-sectional view of a mounting seat of a burner shown according to an exemplary embodiment.

[0020] Figure 3 is Figure 2 an enlarged view of the first air nozzle shown.

[0021] Figure 4 is a perspective view of another embodiment of a burner of the present utility model.

[0022] Figure 5 is a longitudinal cross-sectional view of a burner shown according to an exemplary embodiment.

[0023] Figure 6 is a cross-sectional view of a burner head shown according to an exemplary embodiment.

[0024] Among them, the reference numerals are explained as follows:

[0025] 1. Burner body; 11. Burner head; 111. Inner ring cavity; 112. Outer ring cavity; 113. Middle ring cavity; 12. Ejector channel; 121. First ejector pipe; 122. Second ejector pipe; 123. Third ejector pipe; 124. First fixing part; 2. Air blowing channel; 21. First air blowing pipe; 211. Second vertical joint; 22. Second air blowing pipe; 23. Third air blowing pipe; 3. Air blowing device; 31. Blower; 32. Mounting seat; 321. Air duct; 3211. Horizontal cavity; 3212. Vertical cavity; 322. Horizontal pipe; 323. First vertical joint; 325. Second fixing part; 4. Air flow limiting part; 41. First air nozzle; 411. Equal-diameter section of the orifice; 412. Orifice contraction section; 42. Second air nozzle; 43. Third air nozzle; 5. Gas nozzle; 6. Gas distribution plate assembly; 7. Flame cover assembly. Detailed Embodiments

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this utility model will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed description will be omitted.

[0027] The terms "a", "an", "the", and "said" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and refer to the presence of additional elements / components / etc. in addition to the listed elements / components / etc.

[0028] As Figures 1-6 shown, a burner according to an embodiment of the present utility model includes a burner body 1, a blast channel 2, a blast device 3, and an air flow limiter 4.

[0029] The burner body 1 includes a burner head 11 and an injection channel 12 communicating with the burner head 11. The first end of the blast channel 2 is fixedly connected to the injection channel 12 and communicates with the injection channel 12.

[0030] The blast device 3 includes a blower 31 and a mounting base 32. An air duct 321 is formed in the mounting base 32, and the air inlet of the air duct 321 communicates with the air outlet of the blower 31.

[0031] Both ends of the air flow limiter 4 communicate with the air duct 321 and the second end of the blast channel 2 respectively. The air flow limiter 4 is configured to limit the air flow rate flowing into the blast channel 2 and the injection channel 12.

[0032] The air duct 321, the air flow limiter 4, and the blast channel 2 of the burner of the present utility model together form an independent blast channel. The blower 31 blows air into the injection channel 12 and the burner head 11 through the independent blast channel, so as to increase the primary air volume and achieve uniform mixing of gas and air, thereby improving the combustion efficiency. When the blower 31 or the independent blast channel is damaged, it will not affect the intake of primary air at the air inlet of the injection channel 12.

[0033] The air flow limiter 4 is configured to limit the air flow rate flowing into the blast channel 2 and the injection channel 12, so as to avoid destroying the negative pressure in the injection channel 12 and affecting the entry of primary air at the air inlet of the injection channel 12, and to achieve an increase in the air intake flow rate while avoiding affecting the entry of primary air at the air inlet of the injection channel 12.

[0034] As Figures 1-6As shown, in a preferred embodiment of the present utility model, the burner head 11 is surrounded by an inner ring cavity 111 and an outer ring cavity 112. The injection channel 12 includes a first injection pipe 121 and a second injection pipe 122. The first injection pipe 121 is communicated with the inner ring cavity 111, and the second injection pipe 122 is communicated with the outer ring cavity 112.

[0035] The air supply channel 2 includes a first air supply pipe 21 and a second air supply pipe 22. The first end of the first air supply pipe 21 is communicated with the first injection pipe 121, and the first end of the second air supply pipe 22 is communicated with the second injection pipe 122.

[0036] The air flow limiting part 4 includes a first air nozzle 41 and a second air nozzle 42. The two ends of the first air nozzle 41 are respectively communicated with the air duct 321 and the second end of the first air supply pipe 21, and the two ends of the second air nozzle 42 are respectively communicated with the air duct 321 and the second end of the second air supply pipe 22.

[0037] The blower 31 blows air into the first injection pipe 121 and the inner ring cavity 111 through the air duct 321, the first air nozzle 41 and the first air supply pipe 21, improving the primary air volume in the inner ring cavity 111, realizing full mixing of gas and air, and thus realizing full combustion.

[0038] The blower 31 blows air into the second injection pipe 122 and the outer ring cavity 112 through the air duct 321, the second air nozzle 42 and the second air supply pipe 22, improving the primary air volume in the outer ring cavity 112, realizing full mixing of gas and air, and thus realizing full combustion.

[0039] As Figures 1-6 shown, in a preferred embodiment of the present utility model, the burner head 11 is further surrounded by a middle ring cavity 113, and the middle ring cavity 113 is located between the inner ring cavity 111 and the outer ring cavity 112.

[0040] The injection channel 12 further includes a third injection pipe 123, and the third injection pipe 123 is communicated with the middle ring cavity 113.

[0041] The air supply channel 2 further includes a third air supply pipe 23, and the first end of the third air supply pipe 23 is fixedly connected to the third injection pipe 123 and communicated with the third injection pipe 123.

[0042] The air flow limiting part 4 further includes a third air nozzle 43, and the two ends of the third air nozzle 43 are respectively communicated with the air duct 321 and the second end of the third air supply pipe 23.

[0043] The blower 31 blows air into the third injection pipe 123 and the middle ring cavity 113 through the air duct 321, the third air nozzle 43 and the third air supply pipe 23, improving the primary air volume in the middle ring cavity 113, realizing full mixing of gas and air, and thus realizing full combustion.

[0044] As Figure 2, 3 As shown in Fig. 5, in a preferred embodiment of the present utility model, the diameters of the air channels of the first air nozzle 41, the second air nozzle 42, and the third air nozzle 43 are successively an equal-diameter section 411 and a diameter-reducing section 412 from the air inlet to the air outlet.

[0045] The diameter of the equal-diameter section 411 is 10 mm, and the length of the equal-diameter section 411 is 20 - 100 mm. The diameter-reducing section 412 gradually reduces from 10 mm to 1 - 3 mm.

[0046] Of course, the data of the equal-diameter section 411 and the diameter-reducing section 412 are not limited to the above parameters, and those skilled in the art can select suitable nozzle parameters according to the size of the ejector tube diameter.

[0047] As Figure 1 , 2 As shown in Fig., in a preferred embodiment of the present utility model, the mounting seat 32 includes a transverse tube 322 and three first vertical joints 323 fixed to the transverse tube 322.

[0048] The first air nozzle 41, the second air nozzle 42, and the third air nozzle 43 are respectively installed in the three first vertical joints 323.

[0049] The second ends of the first air duct 21, the second air duct 22, and the third air duct 23 are all provided with second vertical joints 211, and the three first vertical joints 323 are respectively inserted into the three second vertical joints 211.

[0050] For example, the outer wall of the first vertical joint 323 has an annular step, and a part of the first vertical joint 323 extends into the second vertical joint 211. When the annular step abuts against the second vertical joint 211, the first vertical joint 323 and the second vertical joint 211 are inserted in place.

[0051] As Figure 1 , 2 As shown in Fig., in a preferred embodiment of the present utility model, the mounting seat 32 is located above the air duct 2 and the ejector duct 12, realizing an air inlet far from the inlet of the ejector duct 12, and avoiding affecting the entry of primary air when the fan 31 or the mounting seat 32 is damaged. For example, the first vertical joint 323 extends downward, and the second vertical joint 211 extends upward.

[0052] Of course, the mounting seat 32 is not limited to being located above the air duct 2 and the ejector duct 12. The mounting seat 32 can also be located below the air duct 2 and the ejector duct 12. For example, the first vertical joint 323 extends upward, and the second vertical joint 211 extends downward. Those skilled in the art can select the position of the mounting seat 32 according to actual needs.

[0053] AsFigure 4 , 5 As shown, in a preferred embodiment of the present utility model, the mounting seat 32 is disposed opposite to the air inlet of the ejector passage 12. Specifically, it further includes three gas nozzles 5. The mounting seat 32 is disposed opposite to the air inlets of the first ejector pipe 121, the second ejector pipe 122, and the third ejector pipe 123 with a spacing therebetween, and this spacing is for enabling the surrounding air to smoothly enter the air inlets of the first ejector pipe 121, the second ejector pipe 122, and the third ejector pipe 123.

[0054] The mounting seat 32 is provided with nozzle mounting portions corresponding to the air inlets of the first ejector pipe 121, the second ejector pipe 122, and the third ejector pipe 123, and the three gas nozzles 5 are respectively mounted on the three nozzle mounting portions.

[0055] The three gas nozzles 5 are used to communicate with the gas pipe. When the burner is ignited and operating, the three gas nozzles 5 respectively spray gas into the first ejector pipe 121, the second ejector pipe 122, and the third ejector pipe 123; meanwhile, the air around the air inlet holes of the gas nozzles 5 and the air inlets of the ejector pipes are sucked in under the action of the air pressure difference and mixed with the gas to achieve full combustion; meanwhile, the blower 31 blows primary air into the first ejector pipe 121, the second ejector pipe 122, and the third ejector pipe 123 through an independent air blowing passage to further improve full combustion.

[0056] In a preferred embodiment of the present utility model, the nozzle mounting portion is a through cavity or a clamping portion. For example, the gas nozzle 5 is sleeved in the through cavity.

[0057] As Figure 5 shown, in a preferred embodiment of the present utility model, the air duct 321 includes a transverse cavity 3211 and three vertical cavities 3212. The three vertical cavities 3212 are spaced apart and are all communicated with the transverse cavity 3211. The first air nozzle 41, the second air nozzle 42, and the third air nozzle 43 are respectively communicated with the three vertical cavities 3212.

[0058] As Figure 1 , 4 shown, in a preferred embodiment of the present utility model, it further includes two first fixing portions 124 and two second fixing portions 325. The two first fixing portions 124 are respectively fixed on the second ejector pipe 122 and the third ejector pipe 123, the two second fixing portions 325 are respectively fixed on the mounting seat 32 corresponding to the two first fixing portions 124, and the two second fixing portions 325 are fixed on the two first fixing portions 124 by screws.

[0059] As Figure 1 , 4As shown in FIGS. 5, in a preferred embodiment of the present utility model, when the included angle between the air blast channel 2 and the ejector channel 12 is 5 - 45 degrees, the primary air enters most smoothly from the air inlet of the ejector tube. If the included angle is too large, it will affect the entry of the primary air from the air inlet of the ejector tube.

[0060] As Figure 1 , 4 shown, in a preferred embodiment of the present utility model, it further includes an air distribution disc assembly 6 and a burner cap assembly 7.

[0061] The air distribution disc assembly 6 is installed at the upper end of the burner head 11. The air distribution disc assembly 6 is surrounded by three annular cavities, and the three annular cavities are respectively communicated with the inner ring cavity, the outer ring cavity and the middle ring cavity of the burner head 11. The burner cap assembly 7 includes an inner ring burner cap, a middle ring burner cap and an outer ring burner cap, and the inner ring burner cap, the middle ring burner cap and the outer ring burner cap are respectively installed at the upper ends of the three annular cavities of the air distribution disc assembly 6.

[0062] The present utility model also provides a cooker, including the above-mentioned burner. Since the cooker of the present utility model adopts the above-mentioned burner, the air and gas are evenly mixed. When the fan 31 or the mounting seat 32 is damaged, the fan 31, the mounting seat 32 and the air duct 321 will not affect the ejection of the primary air at the air inlet of the ejector channel 12.

[0063] In the embodiments of the present utility model, the term "a plurality of" refers to two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0064] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as a limitation to the embodiments of the present utility model.

[0065] In the description of this specification, the description of terms such as "an embodiment", "a preferred embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0066] The above are only the preferred embodiments of the embodiments of the present utility model, and are not used to limit the embodiments of the present utility model. For those skilled in the art, various modifications and changes can be made to the embodiments of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model shall be included within the protection scope of the embodiments of the present utility model.

Claims

1. A burner, characterized in that: include: A burner body (1), the burner body (1) comprising a burner head (11) and an injection channel (12) connected to the burner head (11); An air blast channel (2), a first end of the air blast channel (2) being fixedly connected to the ejection channel (12) and communicating with the ejection channel (12); An air blowing device (3) comprises a fan (31) and a mounting seat (32), wherein an air duct (321) is provided in the mounting seat (32), and the air duct (321) is communicated with an air outlet of the fan (31); An air flow restriction portion (4), wherein two ends of the air flow restriction portion (4) are respectively connected to the air duct (321) and the second end of the air blowing channel (2), and the air flow restriction portion (4) is configured to restrict the air flow rate flowing to the air blowing channel (2).

2. The burner according to claim 1, characterized in that The furnace head (11) is surrounded by an inner ring cavity (111) and an outer ring cavity (112); the ejection channel (12) comprises a first ejection tube (121) and a second ejection tube (122); the first ejection tube (121) is in communication with the inner ring cavity (111); the second ejection tube (122) is in communication with the outer ring cavity (112); the blast channel (2) comprises a first blast tube (21) and a second blast tube (22); a first end of the first blast tube (21) is in communication with the first ejection tube (121); The air flow restricting portion (4) comprises a first air nozzle (41) and a second air nozzle (42); two ends of the first air nozzle (41) are respectively connected to the air duct (321) and the second end of the first air blast pipe (21); and two ends of the second air nozzle (42) are respectively connected to the air duct (321) and the second end of the second air blast pipe (22).

3. The burner according to claim 2, characterized in that The furnace head (11) further encloses a middle ring cavity (113), wherein the middle ring cavity (113) is located between the inner ring cavity (111) and the outer ring cavity (112); the ejector channel (12) further comprises a third ejector pipe (123), wherein the third ejector pipe (123) is in communication with the middle ring cavity (113); the blast channel (2) further comprises a third blast pipe (23), wherein one end of the third blast pipe (23) is fixedly connected to the third ejector pipe (123) and is in communication with the third ejector pipe (123); the air flow limiting portion (4) further comprises a third air nozzle (43), wherein two ends of the third air nozzle (43) are respectively in communication with the air duct (321) and the second end of the third blast pipe (23).

4. The burner according to claim 3, characterized in that The calibers of the air passages of the first air nozzle (41), the second air nozzle (42) and the third air nozzle (43) are, from air inlet to air outlet, a straight section (411) of equal caliber and a section (412) of contracted caliber.

5. The burner according to claim 3, characterized in that: The mounting seat (32) comprises a transverse tube (322) and three first vertical joints (323) fixedly connected to the transverse tube (322); the first air nozzle (41), the second air nozzle (42) and the third air nozzle (43) are respectively mounted in the three first vertical joints (323); the second ends of the first blast pipe (21), the second blast pipe (22) and the third blast pipe (23) are all provided with second vertical joints (211); the three first vertical joints (323) are respectively plugged into the three second vertical joints (211).

6. The burner according to claim 5, characterized in that The mounting seat (32) is located above the air blast channel (2) and the ejection channel (12); or the mounting seat (32) is located below the air blast channel (2) and the ejection channel (12).

7. The burner according to claim 3, characterized in that It also comprises three gas nozzles (5), the mounting seat (32) being arranged opposite to and spaced from the air inlets of the first ejector tube (121), the second ejector tube (122) and the third ejector tube (123), the mounting seat (32) being arranged with nozzle mounting parts corresponding to the air inlets of the first ejector tube (121), the second ejector tube (122) and the third ejector tube (123), and the three gas nozzles (5) being mounted on the three nozzle mounting parts respectively.

8. The burner according to claim 7, characterized in that The air duct (321) comprises a transverse cavity (3211) and three vertical cavities (3212); the three vertical cavities (3212) are spaced apart and are all connected to the transverse cavity (3211); the first air nozzle (41), the second air nozzle (42) and the third air nozzle (43) are respectively connected to the three vertical cavities (3212).

9. The burner according to any one of claims 1 to 8, characterized in that: The included angle between the blast channel (2) and the ejection channel (12) is 5-45 degrees.

10. A cooking appliance, characterized in that: Comprising the burner described in any one of claims 1-9.

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