Upper air inlet burner capable of being independently controlled in partition mode

Abstract

The upper air inlet burner comprises a base and a support, the support is arranged on the base, an outer-layer annular groove, a middle annular groove and an inner-layer annular groove are sequentially formed in the support from the outer edge to the center, the base is provided with a first air inlet nozzle, a second air inlet nozzle and a third air inlet nozzle, and the first air inlet nozzle, the second air inlet nozzle and the third air inlet nozzle are communicated with each other. The support is provided with an outer-layer injection pipe communicated with the outer-layer annular groove, a middle injection pipe communicated with the middle annular groove and an inner-layer injection pipe communicated with the inner-layer annular groove, and the support is provided with a first air port, a second air port and a third air port which are connected with an external air source. According to the present invention, the first gas port communicates with the outer layer annular groove, the second gas port communicates with the middle annular groove, the third gas port communicates with the inner layer annular groove, and the first gas port, the second gas port and the third gas port are respectively connected with the external gas source; therefore, fire outlet of the inner-layer annular groove, the middle annular groove and the outer-layer annular groove can be independently controlled.

Description

Technical Field

[0001] The invention relates to the technical field of burners, and in particular to an upper air inlet burner capable of being independently controlled in different zones. Background Art

[0002] At present, most of the existing household gas burners are atmospheric burners, also known as partial premixed burners. The working principle is: the gas flows out of the nozzle at a certain pressure and a certain flow rate, enters the ejector tube, and relies on the ejection effect of the gas's own energy to attract a certain amount of surrounding air, which is called "primary air". The primary air and gas are mixed in the ejector tube and the burner mixing chamber, and then flow out through the fire hole to burn. During the combustion process, air is attracted from the flame to assist combustion, and this part of air is called "secondary air".

[0003] After searching, the structure of the current atmospheric air intake burner refers to an upper air intake burner provided in the Chinese utility model patent (authorization announcement number: CN216384171U), including a base and a bracket, the bracket is fixedly connected to the base, and an outer annular groove, an intermediate annular groove and an inner annular groove are arranged on the bracket from the outer edge to the center in sequence, an unobstructed central through hole is arranged in the center of the bracket, a first air intake nozzle, a second air intake nozzle and a central air intake nozzle are arranged on the side of the base, a first ejector tube connected to the first air intake nozzle, a second ejector tube connected to the second air intake nozzle and a central ejector tube connected to one end of the central air intake nozzle are arranged at the bottom of the bracket, the second ejector tube and the first ejector tube are connected to the outer annular groove, and the outer annular groove is connected to the intermediate annular groove, the central ejector tube is a J-shaped structure, the central ejector tube is located on the side of the central through hole, and a central ejector outlet connected to the other end of the central ejector tube is arranged in the inner annular groove.

[0004] The outer annular groove of the above-mentioned prior art is connected with the middle annular groove, so that the middle annular groove and the outer annular groove are both supplied with air through the first ejector tube and the second ejector tube. In addition, the central ejector tube is connected with the inner annular groove, so that the inner annular groove is supplied with air through the central ejector tube, so that the activity of the inner annular groove is independently controlled by the central ejector tube, and the outer annular groove and the middle annular groove are simultaneously controlled by the first ejector tube and the second ejector tube.

[0005] Therefore, there is a problem with the above-mentioned prior art. The above-mentioned prior art belongs to a three-ring fire burner, but the three partitions of the three-ring fire cannot be controlled individually. Although the inner annular groove can be controlled individually, the outer annular groove and the middle annular groove can only be opened and closed at the same time. Therefore, the three-ring fire in the prior art cannot realize individual control of each partition, resulting in fewer fire output control modes for the burner when in use. There are only three modes: opening the fire of the inner annular groove alone, opening the fire of the middle annular groove and the outer annular groove alone, and opening the fire of the inner annular groove, the middle annular groove and the outer annular groove at the same time. There are fewer modes for controlling the fire output, so this shortcoming needs to be improved urgently. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems. The present invention provides an upper air inlet burner which can be independently controlled by partitions and has the advantage of more fire output modes to choose from.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: comprising a base and a bracket, the bracket is arranged on the base, and an outer annular groove, a middle annular groove and an inner annular groove are arranged on the bracket in sequence from the outer edge to the center, a first air inlet nozzle, a second air inlet nozzle and a third air inlet nozzle are arranged on the base, an outer ejection tube connected to the outer annular groove, an middle ejection tube connected to the middle annular groove and an inner ejection tube connected to the inner annular groove are respectively arranged on the bracket, the first air inlet nozzle corresponds to the outer ejection tube, the second air inlet nozzle corresponds to the middle ejection tube, the third air inlet nozzle corresponds to the inner ejection tube, the bracket is provided with a first air port, a second air port and a third air port respectively connected to an air source, the first air port is connected to the first air inlet nozzle through a first channel, the second air port is connected to the second air inlet nozzle through a second channel, and the third air port is connected to the third air inlet nozzle through a third channel.

[0008] Preferably, the first air inlet nozzle includes a first outer air inlet nozzle and a second outer air inlet nozzle, the outer ejector tube includes a first outer ejector tube and a second outer ejector tube respectively connected to the outer annular groove, the first outer air inlet nozzle corresponds to the first outer ejector tube, the second outer air inlet nozzle corresponds to the second outer ejector tube, and the air outlet end of the first outer ejector tube and the air outlet end of the second outer ejector tube extend in the outer annular groove along the same clockwise direction.

[0009] Preferably, the bracket is provided with an inner ventilation annular groove located between the middle annular groove and the inner annular groove, and the bracket is also provided with a through hole penetrating the bottom of the bracket, and the through hole connects the inner ventilation annular groove with the outside air.

[0010] Preferably, the bracket is further provided with an outer ventilation annular groove located between the outer annular groove and the middle annular groove, and an air vent penetrating to the outer ventilation annular groove is provided on the outer edge of the bracket, and the air vent connects the outer ventilation annular groove with the outside air.

[0011] Preferably, the bracket is provided with a first annular step, a second annular step and a third annular step, the first annular step is provided with an outer annular fire cover covering the outer annular groove, the second annular step is provided with a middle annular fire cover covering the middle annular groove, and the third annular step is provided with an inner annular fire cover covering the inner annular groove.

[0012] Preferably, an ignition needle mounting seat and a thermocouple mounting seat are provided on the base, and a first mounting tube cooperating with the ignition needle mounting seat and a second mounting tube cooperating with the thermocouple mounting seat are provided on the bracket.

[0013] Preferably, the ignition mounting seat is provided with a first plug-in portion plug-matched with the first mounting tube, and the thermocouple mounting seat is provided with a second plug-in portion plug-matched with the second mounting tube.

[0014] Preferably, a mounting bracket is provided on the base, and a connecting hole is provided on the mounting bracket.

[0015] Preferably, the second channel extends in a straight line from the second air port to the second air inlet nozzle, the first outer air inlet nozzle and the second outer air inlet nozzle are located at opposite corners of the bracket, the first channel is arranged in an "L" shape, and the first outer air inlet nozzle and the second outer air inlet nozzle are respectively located at two ends of the first channel.

[0016] Preferably, the third air inlet nozzle is arranged on a side close to the third air port.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides an upper air inlet burner which can be independently controlled in different zones. The burner is connected to an outer annular groove through a first air port, connected to an intermediate annular groove through a second air port, and connected to an inner annular groove through a third air port. The first air port, the second air port, and the third air port are respectively connected to an external air source, thereby being able to independently control the ignition of the inner annular groove, the intermediate annular groove, and the outer annular groove. The first air port, the second air port, and the third air port can be combined and ventilated with each other to adjust the amount of fire according to different needs of users. The present invention has a total of seven adjustable fire output modes to meet the needs of different users. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the bracket of the present invention from a first viewing angle; Figure 3 It is a schematic diagram of the top view of the structure of the bracket of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the bracket of the present invention from a second viewing angle; Figure 5 This is a schematic diagram of the three-dimensional structure of the base of the present invention from a first viewing angle; Figure 6 A schematic diagram of the three-dimensional structure of the base of the present invention from a second viewing angle; Figure 7 is a schematic cross-sectional structure diagram of the airflow regulating assembly of the present invention; Figure 8 It is a schematic diagram of the side structure of the airflow adjustment assembly of the present invention; Fig. 9 for Figure 7 Schematic diagram of the enlarged structure of A.

[0019] Description of the drawings: 1. Base; 10. Connecting hole; 101. First air port; 102. Second air port; 103. Third air port; 11. Mounting bracket; 12. First outer air inlet nozzle; 13. Second air inlet nozzle; 14. Third air inlet nozzle; 15. Second outer air inlet nozzle; 16. Ignition needle mounting seat; 161. First plug-in portion; 17. Thermocouple mounting seat; 171. Second plug-in portion; 181. First channel; 182. Second channel; 183. Third channel; 2. Bracket; 201. Air vent; 202. Through hole; 211. First annular step; 212. Second annular step; 213. Third annular step shaped step; 21, outer annular groove; 22, outer ventilation annular groove; 23, middle annular groove; 24, inner ventilation annular groove; 25, inner annular groove; 26, outer ejector tube; 261, first outer ejector tube; 262, second outer ejector tube; 27, middle ejector tube; 28, inner ejector tube; 291, first mounting tube; 292, second mounting tube; 31, outer annular fire cover; 32, middle annular fire cover; 33, inner annular fire cover; 401, adjustment hole; 402, mounting hole; 41, connecting seat; 42, adjustment shaft; 421, clamping shaft; 43, matching block; 44, baffle; 45, spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-Figure 6 As shown, a partitionable and independently controllable upper air inlet burner comprises a base 1 and a bracket 2, wherein the bracket 2 is fixedly connected to the base 1, and an outer annular groove 21, an intermediate annular groove 23 and an inner annular groove 25 are sequentially arranged on the bracket 2 from the outer edge to the center, a first air inlet nozzle, a second air inlet nozzle 13 and a third air inlet nozzle 14 are arranged on the base 1, and an outer ejector pipe 26, an intermediate ejector pipe 27 and an inner ejector pipe 28 are arranged on the bracket 2, the first air inlet nozzle corresponds to the outer annular groove 21 and the outer ejector pipe 26, and the second The air inlet nozzle 13 corresponds to the middle annular groove 23 and the middle ejector tube 27, the third air inlet nozzle 14 corresponds to the inner annular groove 25 and the inner ejector tube 28, and the bracket 2 is provided with a first air port 101, a second air port 102 and a third air port 103 which are respectively connected to an external air source, the first air port 101 is connected to the first air inlet nozzle through a first channel 181, the second air port 102 is connected to the second air inlet nozzle 13 through a second channel 182, and the third air port 103 is connected to the third air inlet nozzle 14 through a third channel 183.

[0022] The first air inlet nozzle includes a first outer air inlet nozzle 12 and a second outer air inlet nozzle 15, and the outer layer ejector tube 26 includes a first outer layer ejector tube 261 and a second outer layer ejector tube 262 which are respectively connected to the outer annular groove 21. The first outer layer air inlet nozzle 12 corresponds to the first outer layer ejector tube 261, and the second outer layer air inlet nozzle 15 corresponds to the second outer layer ejector tube 262. The outlet end of the first outer layer ejector tube 261 and the outlet end of the second outer layer ejector tube 262 extend in the same clockwise direction in the outer annular groove 21.

[0023] Mixing chambers are formed between the first outer air inlet nozzle 12 and the first outer ejector tube 261, between the second air inlet nozzle 13 and the middle ejector tube 27, between the third air inlet nozzle 14 and the inner ejector tube 28, and between the second outer air inlet nozzle 15 and the second outer ejector tube 262. The air nozzle blows gas into the ejector tube so that the gas can be mixed with air and enter the ejector tube, thereby enabling the gas and oxygen in the air to burn.

[0024] The first outer layer air inlet nozzle 12 is communicated with the second outer layer air inlet nozzle 15 through a first channel 181 .

[0025] When it is necessary to control the ignition of the outer annular groove 21, it is only necessary to supply gas to the first gas port 101, and the gas is transmitted to the first outer gas inlet nozzle 12 and the second outer gas inlet nozzle 15 through the first channel 181, so that the first outer gas inlet nozzle 12 and the second outer gas inlet nozzle 15 can be ventilated to the first outer ejector tube 261 and the second outer ejector tube 262 respectively, so that the gas can enter the outer annular groove 21, thereby realizing the function of individually controlling the ignition of the outer annular groove 21.

[0026] When it is necessary to control the ignition of the middle annular groove 23, it is only necessary to pass gas to the second gas port 102, and the gas is transmitted to the second gas inlet nozzle 13 through the second channel 182, so that the second gas inlet nozzle 13 can pass gas to the middle ejector pipe 27, so that the gas can enter the middle annular groove 23, thereby realizing the function of independently controlling the ignition of the middle annular groove 23.

[0027] When it is necessary to control the ignition of the inner annular groove 25, it is only necessary to pass gas to the third gas port 103, and the gas is transmitted to the third gas inlet nozzle 14 through the third channel 183, and then the third gas inlet nozzle 14 can pass gas to the inner ejector tube 28, so that the gas can enter the inner annular groove 25, thereby realizing the function of independently controlling the ignition of the inner annular groove 25.

[0028] In addition to individually controlling the outer annular groove 21, the middle annular groove 23 and the inner annular groove 25, it is also possible to adjust flames of different sizes by supplying gas to the first air port 101, the second air port 102 and the third air port 103 in any combination, such as simultaneously opening the first air port 101 and the second air port 102, simultaneously opening the first air port 101 and the third air port 103, simultaneously opening the second air port 102 and the third air port 103, or simultaneously opening the first air port 101, the second air port 102 and the third air port 103. The above four fire modes are supplemented by three fire modes of individually opening the first air port 101, the second air port 102 and the third air port 103. The present invention has a total of seven fire output modes to choose from, and the fire output can be adjusted in multiple modes according to user needs.

[0029] The bracket 2 is provided with an inner ventilation annular groove 24 located between the middle annular groove 23 and the inner annular groove 25. The bracket 2 is also provided with a through hole 202 that passes through the bottom of the bracket 2. The through hole 202 connects the inner ventilation annular groove 24 with the outside air. Secondary air is introduced into the inner ventilation annular groove 24 through the through hole 202, so that the gas in the inner annular groove 25 burns more completely.

[0030] The bracket 2 is also provided with an outer ventilation annular groove 22 located between the outer annular groove 21 and the middle annular groove 23. The outer edge of the bracket 2 is provided with an air vent 201 penetrating to the outer ventilation annular groove 22. The air vent 201 connects the outer ventilation annular groove 22 with the outside air. Secondary air flows into the outer ventilation annular groove 22 through the air vent 201, so that the gas in the middle annular groove 23 burns more completely.

[0031] The bracket 2 is provided with a first annular step 211, a second annular step 212 and a third annular step 213. The first annular step 211 is provided with an outer annular fire cover 31 covering the outer annular groove 21. The second annular step 212 is provided with an intermediate annular fire cover 32 covering the intermediate annular groove 23. The third annular step 213 is provided with an inner annular fire cover 33 covering the inner annular groove 25. The outer annular fire cover 31, the intermediate annular fire cover 32 and the inner annular fire cover 33 are provided with a plurality of fire outlet holes.

[0032] The base 1 is provided with an ignition needle mounting seat 16 and a thermocouple mounting seat 17, and the bracket 2 is provided with a first mounting cylinder 291 matched with the ignition needle mounting seat 16 and a second mounting cylinder 292 matched with the thermocouple mounting seat 17. The ignition needle is used to ignite the gas, and the thermocouple can quickly cut off the gas after the flame is accidentally extinguished to prevent gas leakage. The cross-sections of the ignition needle mounting seat 16 and the thermocouple mounting seat 17 are both circular, and the first mounting cylinder 291 and the second mounting cylinder 292 are correspondingly circular, and the first mounting cylinder 291 and the second mounting cylinder 292 are both located in the inner ventilation annular groove 24, so that the ignition needle mounting seat 16 and the thermocouple mounting seat 17 can play a positioning and fixing role when the bracket 2 and the base 1 are installed.

[0033] The ignition mounting seat is provided with a first plug-in portion 161 which is plugged into and matched with the first mounting tube 291, and the thermocouple mounting seat 17 is provided with a second plug-in portion 171 which is plugged into and matched with the second mounting tube 292. The positioning and fixing function between the bracket 2 and the base 1 is achieved by plugging and matching the first plug-in portion 161 with the first mounting tube 291 and the second plug-in portion 171 with the second mounting tube 292.

[0034] The base 1 is provided with a mounting bracket 11 , and the mounting bracket 11 is provided with a connecting hole 10 , and the connecting hole 10 is used for installing bolts, so that the base 1 is installed on the gas stove.

[0035] The upper ends of the first outer air inlet nozzle 12 , the second air inlet nozzle 13 , the third air inlet nozzle 14 and the second outer air inlet nozzle 15 abut against the bottom of the bracket 2 , so that the bracket 2 can be more stable when in use and the bracket 2 will not tip over.

[0036] The second channel 182 extends in a straight line from the second gas port 102 to the second gas inlet nozzle 13. The second channel 182 is a straight line, so that the loss of gas flow rate can be reduced. Therefore, the loss of gas flow rate can be reduced. The first outer gas inlet nozzle 12 and the second outer gas inlet nozzle 15 are located at the diagonal of the bracket 2. The first channel 181 is set in an "L" shape, and the first outer gas inlet nozzle 12 and the second outer gas inlet nozzle 15 are respectively located at the two end portions of the first channel 181, and the first channel 181 and the second channel 182 do not cross each other. In addition, since the distance between the first outer gas inlet nozzle 12 and the second outer gas inlet nozzle 15 is relatively far, and in order to prevent the first channel 181 and the second channel 182 from crossing each other, the first channel 181 is set in an "L" shape in this embodiment. The third gas inlet nozzle 14 is set on the side close to the third gas port 103, thereby shortening the distance from the third gas port 103 to the third gas inlet nozzle 14, thereby reducing the loss of gas flow rate.

[0037] Reference Figure 7-Figure 9 , the present application is further improved, the first air port 101, the second air port 102, and the third air port 103 are respectively provided with air flow adjustment components, and the air flow adjustment components include a connecting seat 41, an adjustment shaft 42 and a baffle 44. In this embodiment, the connecting seat 41 of the air flow adjustment component of the first air port 101 is connected to the first air port 101, and correspondingly, the connecting seat 41 of the air flow adjustment component of the second air port 102 is connected to the second air port 102, and the connecting seat 41 of the air flow adjustment component of the third air port 103 is connected to the third air port 103.

[0038] The connecting seat 41 is provided with a mounting hole 402 and an adjusting hole 401, the adjusting shaft 42 is slidably arranged in the mounting hole 402, the adjusting shaft 42 has a connecting end and an adjusting end, the connecting end is rotatably matched with the baffle 44, the adjusting shaft 42 rotates along its own circumferential direction, the baffle 44 is slidably installed in the connecting seat 41, the baffle 44 slides axially along the adjusting shaft 42, the baffle 44 moves in the adjusting hole 401 to adjust the size of the adjusting hole 401, and the adjusting shaft 42 can rotate around the axial direction of the mounting hole 402 while sliding radially along the adjusting hole 401. A plurality of clamping shafts 421 are provided, and a matching block 43 is provided on the connecting seat 41. A clamping slot is provided on the matching block 43. The clamping slot is arranged in cooperation with the clamping shaft 421. The clamping slot cooperates with different clamping shafts 421 to adjust the position of the baffle 44 in the adjusting hole 401. When the clamping shaft 421 closest to the connecting seat 41 cooperates with the clamping slot, the adjusting hole 401 is in a fully open state, that is, the baffle 44 does not block the adjusting hole 401. When the clamping shaft 421 farthest from the connecting seat 41 cooperates with the clamping slot, the adjusting hole 401 is in a half-open state, that is, half of the adjusting hole 401 is blocked by the baffle 44, so the air flow is halved.

[0039] A spring 45 for resetting the baffle 44 is provided between the baffle 44 and the connecting seat 41 . The spring 45 always has a tendency to pull the baffle 44 to move toward a side away from the axis of the adjusting hole 401 .

[0040] It should be noted that the baffle 44 described in the present application is a semicircular baffle 44. In addition to the semicircular shape, it can also be a circle or any other shape. In addition, the area of ​​the baffle 44 is moderately smaller than the area of ​​the adjustment hole 401, and the second air port 102 and the third air port 103 can also be installed with an airflow adjustment component.

[0041] During specific adjustment, firstly, the adjusting shaft 42 is rotated to disengage the coupling shaft 421 on the adjusting shaft 42 from the coupling slot, and then the adjusting shaft 42 is manually moved along the axial direction of the mounting hole 402. The position of the baffle 44 is adjusted by matching different coupling shafts 421 with the coupling slot, thereby adjusting the size of the adjusting hole 401 and then adjusting the air flow of the adjusting hole 401, so as to meet the needs of different customers.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A partitionable and independently controllable upper air inlet burner, comprising a base (1) and a bracket (2), wherein the bracket (2) is arranged on the base (1), and an outer annular groove (21), a middle annular groove (23) and an inner annular groove (25) are arranged on the bracket (2) in sequence from the outer edge to the center, and a first air inlet nozzle, a second air inlet nozzle (13) and a third air inlet nozzle (14) are arranged on the base (1), and an outer ejector tube (26) connected to the outer annular groove (21), an middle ejector tube (27) connected to the middle annular groove (23) and an inner ejector tube (28) connected to the inner annular groove (25) are respectively arranged on the bracket (2), the first air inlet nozzle is matched with the outer ejector tube (26), the second air inlet nozzle (13) is matched with the middle ejector tube (27), and the third air inlet nozzle (14) is matched with the inner ejector tube (28), Features: The bracket (2) is provided with a first air port (101), a second air port (102) and a third air port (103) respectively connected to an air source; the first air port (101) is connected to the first air inlet nozzle via a first channel (181); the second air port (102) is connected to the second air inlet nozzle (13) via a second channel (182); and the third air port (103) is connected to the third air inlet nozzle (14) via a third channel (183).

2. The up-wind burner capable of being controlled independently in different zones according to claim 1, Features: The first air inlet nozzle comprises a first outer air inlet nozzle (12) and a second outer air inlet nozzle (15); the outer ejector tube (26) comprises a first outer ejector tube (261) and a second outer ejector tube (262) respectively connected to the outer annular groove (21); the first outer air inlet nozzle (12) corresponds to the first outer ejector tube (261); the second outer air inlet nozzle (15) corresponds to the second outer ejector tube (262); an air outlet end of the first outer ejector tube (261) and an air outlet end of the second outer ejector tube (262) extend in the same clockwise direction in the outer annular groove (21).

3. The up-wind burner capable of being controlled independently in different zones according to claim 1, Features: The bracket (2) is provided with an inner ventilation annular groove (24) located between the middle annular groove (23) and the inner annular groove (25), and the bracket (2) is also provided with a through hole (202) penetrating the bottom of the bracket (2), and the through hole (202) connects the inner ventilation annular groove (24) with the outside air.

4. The up-inlet burner capable of being controlled independently in different zones according to claim 1, Features: The support (2) is further provided with an outer ventilation annular groove (22) located between the outer annular groove (21) and the middle annular groove (23); an air vent (201) penetrating the outer ventilation annular groove (22) is provided on the outer edge of the support (2); the air vent (201) connects the outer ventilation annular groove (22) with the outside air.

5. The up-wind burner capable of being controlled independently in different zones according to claim 1, Features: The bracket (2) is provided with a first annular step (211), a second annular step (212) and a third annular step (213); the first annular step (211) is provided with an outer annular fire cover (31) covering the outer annular groove (21); the second annular step (212) is provided with an intermediate annular fire cover (32) covering the intermediate annular groove (23); and the third annular step (213) is provided with an inner annular fire cover (33) covering the inner annular groove (25).

6. The up-wind burner capable of being controlled independently in different zones according to claim 1, Features: An ignition needle mounting seat (16) and a thermocouple mounting seat (17) are provided on the base (1), and a first mounting tube (291) cooperating with the ignition needle mounting seat (16) and a second mounting tube (292) cooperating with the thermocouple mounting seat (17) are provided on the bracket (2).

7. The up-wind burner capable of being controlled independently in different zones according to claim 6, Features: The ignition mounting seat is provided with a first plug-in portion (161) pluggably mating with the first mounting cylinder (291), and the thermocouple mounting seat (17) is provided with a second plug-in portion (171) pluggably mating with the second mounting cylinder (292).

8. The up-intake burner capable of being controlled independently in different zones according to claim 1, Features: A mounting bracket (11) is provided on the base (1), and a connecting hole (10) is provided on the mounting bracket (11).

9. The up-inlet burner capable of being controlled independently in different zones according to claim 2, Features: The second channel (182) is arranged to extend in a straight line from the second air port (102) to the second air inlet nozzle (13); the first outer air inlet nozzle (12) and the second outer air inlet nozzle (15) are located at diagonal positions of the bracket (2); the first channel (181) is arranged in an "L" shape, and the first outer air inlet nozzle (12) and the second outer air inlet nozzle (15) are respectively located at two ends of the first channel (181).

10. The up-wind burner capable of being controlled independently in different zones according to claim 1, Features: The third air inlet nozzle (14) is arranged on a side close to the third air port (103).

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