Upper air inlet burner and burner with the burner

Abstract

The present invention provides an upper air inlet burner head and a burner with the burner head which has a simple structure, beautiful appearance, easy cleaning, high combustion efficiency and easy installation. The burner head comprises a burner head seat, a central ejector tube, an outer ejector tube, an installation A bracket, an installation B bracket, a ventilation seat A and a ventilation seat B. The burner head seat is in the shape of a round cup and comprises an annular side wall and a circular bottom connected to the same body. Holes A and B are provided on the side wall of the burner head seat. The air inlet ends of the central ejector tube and the outer ejector tube are both made into flared ends and are fixedly connected to the central air door and the outer air door respectively. The installation A bracket comprises an annular A body and a plurality of connecting A feet connected to the same body. The annular A body is provided with a connecting A hole with an internal thread, and a plurality of connecting A feet are welded to the central air door.

Description

Technical Field

[0001] The invention relates to kitchenware, in particular to a stove head with upper air inlet and a burner with the stove head. Background Art

[0002] Most of the existing top-inlet burners have complex structures, which affect the appearance and are difficult to clean. In addition, most of the ejector tubes adopt a casting process, with a rough inner edge, which causes greater friction when the gas flows through, reducing the combustion efficiency.

[0003] Moreover, during the installation process, for a burner with a cup-shell structure, the ejector tube is usually fixed to the bottom of the cup body first, and then the nozzle is installed on the side wall of the cup body. This installation method sometimes makes it impossible for the nozzle outlet end to be aligned with the center hole of the air door installed at the air inlet end of the ejector tube at one time, requiring rework, which increases costs and reduces work efficiency. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the present invention provides an upper air inlet burner head and a burner having the burner head which has a simple structure, is beautiful, easy to clean, has high combustion efficiency and is easy to install.

[0005] The technical solution to the technical problem solved by the present invention is: an upper air inlet burner, comprising a burner seat, a central ejector tube, an outer ejector tube, a mounting bracket A, a mounting bracket B, a vent seat A, and a vent seat B. The burner seat is in the shape of a round cup, comprising an annular side wall connected to the same body and a circular bottom. A hole A and a hole B are provided on the side wall of the burner seat. The air inlet ends of the central ejector tube and the outer ejector tube are both made into flared ports and are fixedly connected to the central air door and the outer air door respectively. The mounting bracket A comprises an annular body A and a plurality of connecting rods connected to the same body. Connect A foot, the annular A body is provided with a connection A hole with an internal thread, and several of the connection A feet are welded to the central air door. The mounting B bracket includes an annular B body and several connection B feet connected to the same body, the annular B body is provided with a connection B hole with an internal thread, and several of the connection B feet are welded to the outer air door. The bottom of the burner seat is provided with an outer ejector tube groove and a central ejector tube groove, so that the lower small part of the central ejector tube and the lower small part of the outer ejector tube are respectively embedded in the central ejector tube groove and the outer ejector tube groove. The central ejector tube and the outer ejector tube are respectively welded to the bottom of the burner seat, and the air outlet end of the vent seat A is provided with an internal thread adapted to the external thread of the central nozzle air inlet end and an external thread adapted to the internal thread of the connection A hole. The central nozzle air inlet end is threadedly connected to the air outlet end of the vent seat A. The other end of the vent seat A is a gas pipe connection hole A communicating with the air inlet end of the central nozzle. The air outlet end of the vent seat A is threadedly connected to the mounting bracket A through the A hole, and the central nozzle The air outlet end is aligned with the center hole A of the central damper, the air outlet end of the air vent seat B is provided with an internal thread adapted to the external thread of the air inlet end of the outer nozzle and an external thread adapted to the internal thread of the connection B hole, the air inlet end of the outer nozzle is threadedly connected to the air outlet end of the air vent seat B, the other end of the air vent seat B is a gas pipe connection hole B communicated with the air inlet end of the outer nozzle, the air outlet end of the air vent seat B is threadedly connected to the mounting bracket B through the B hole, and the air outlet end of the outer nozzle is aligned with the center hole B of the outer damper.

[0006] The soup plate positioning ring is formed by casting or stamping, and includes a mounting plate connected to the same body, a plurality of connecting strips and an outer ring with an annular flange. The mounting plate is provided with a middle lower hole, an ignition needle C perforation and a thermocouple C perforation. The annular flange of the outer ring is inserted into the upper end of the burner seat and the soup plate positioning ring is welded to the burner seat, and the air outlet end of the center ejector tube passes through the middle lower hole, the upper end of the ignition needle passes through the ignition needle C perforation, and the upper end of the thermocouple passes through the thermocouple C perforation. The secondary air partition plate is placed on the mounting plate, and the secondary air partition plate 11 is provided with a middle hole, an outer hole, an ignition needle perforation and a thermocouple perforation 21, so that the air outlet end of the center ejector tube passes through the middle hole, the air outlet end of the outer ejector tube passes through the outer hole, the upper end of the ignition needle passes through the ignition needle perforation, and the upper end of the thermocouple passes through the thermocouple perforation.

[0007] Furthermore, the central ejection tube and the outer ejection tube are both formed by extrusion of stainless steel.

[0008] Furthermore, the central axis of the outer nozzle is perpendicular to the fixing plate.

[0009] The present invention solves another technical solution to the technical problem: an upper air inlet burner, which is the same as the aforementioned solution except for the differences described below. The difference is that the B hole in the aforementioned solution is opened on the side wall of the burner seat, while the B hole in this solution is opened on a fixed plate fixedly connected to the burner seat, or partially opened on the fixed plate fixedly connected to the burner seat, and partially opened on the side wall of the burner seat adjacent to the fixed plate.

[0010] The technical solution to the technical problem of the present invention also includes a burner, including a splint, an outer fire cover seat, an outer fire cover, an inner fire cover and the aforementioned upper air inlet burner head, characterized in that the splint is formed by casting or stamping, the splint is provided with a middle upper hole, an ignition needle B perforation and a thermocouple B perforation, the outer edge of the splint is connected to a plurality of lower connecting feet, the bottom surface of the outer fire cover seat is provided with a plurality of upper connecting feet, the plurality of upper connecting feet are threaded or welded to the corresponding plurality of lower connecting feet, so that the splint is fixedly connected to the outer fire cover seat.

[0011] The splint is placed on the secondary air partition plate, and the outer tube provided on the bottom surface of the outer fire cover seat is inserted into the air outlet end of the outer ejector tube, and the air outlet end of the central ejector tube passes through the middle upper hole, the upper end of the ignition needle passes through the ignition needle B perforation, and the upper end of the thermocouple passes through the thermocouple B perforation.

[0012] The outer fire cover comprises an annular outer fire lower ring cast or stamped from stainless steel and an annular outer fire upper ring cast or stamped from stainless steel and placed on the outer fire lower ring. The outer fire lower ring comprises an inner ring body A, an upper ring body A, and an outer ring body A, connected in sequence. The upper ring body A is provided with a plurality of radially extending, upwardly projecting, long insulating strips. Between each pair of these long insulating strips is an outer short insulating strip located on the outer side and an inner air outlet. The outer fire upper ring comprises an annular outer fire stop ring and an integrally connected outer fire stop upper ring. The outer fire stop upper ring is provided with a ignition slot. When the outer fire upper ring is placed on the outer fire lower ring, the upper and lower sides of the outer fire upper ring are separated into a plurality of outer air passages by the plurality of long insulating strips and the plurality of short insulating strips. Each outer air passage is defined by the upper side of the outer fire lower ring, the lower side of the outer fire upper ring, the outer long insulating strips, and the adjacent outer short insulating strips. The inner opening of the outer air duct is blocked by the outer fire blocking ring.

[0013] The fuel gas and air mixture flows out through the outer nozzle, the outer ejector tube, a plurality of outgoing air holes, and a plurality of the outer air passages and is ignited.

[0014] The lower end of the inner fire cover is inserted into the gas outlet end of the central ejector tube, and the gas-air mixture flows out through the central nozzle, the central ejector tube, the gas outlet end of the central ejector tube and the inner fire cover and is ignited.

[0015] A primary air inlet is formed between the soup plate positioning ring and the secondary air dividing plate, and a secondary air inlet is formed between the secondary air dividing plate, the clamping plate and the outer fire cover seat.

[0016] The present invention has the beneficial effect of using stainless steel for the ejector tube and flame cover, reducing costs, reducing friction in the gas energy path, and improving combustion efficiency. Furthermore, the central damper and outer damper are fixedly connected to mounting brackets A and B, respectively, and relatively large holes A and B are provided on the sidewalls of the burner base. This allows the central nozzle and outer nozzle to move vertically and horizontally when passing through holes A and B, respectively. This allows the central nozzle and outer nozzle outlet ends to be threadedly connected to mounting brackets A and B at one time, and aligned with the central hole A of the central damper and the central hole B of the outer damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a stereoscopic diagram of Example 1 of the present invention.

[0018] Figure 2 This is a stereoscopic diagram of embodiment 2 of the present invention.

[0019] Figure 3 This is a stereoscopic diagram of embodiment 3 of the present invention.

[0020] Figure 4 This is a stereoscopic diagram of embodiment 4 of the present invention.

[0021] Figure 5 This is a three-dimensional diagram of installing bracket A in Examples 1-4 of the present invention.

[0022] Figure 6 This is a three-dimensional diagram of the installation of bracket B in Examples 1-4 of the present invention.

[0023] Figure 7 This is a three-dimensional diagram of the soup plate positioning ring in Examples 1-4 of the present invention.

[0024] Figure 8 It is a partial structural stereogram of Examples 1-4 of the present invention.

[0025] Figure 9 It is a three-dimensional diagram of the partial structure of embodiments 2 and 4 of the present invention.

[0026] Figure 10 It is an exploded view of the partial structure of Examples 2 and 4 of the present invention.

[0027] Figure 11 This is an exploded view of Example 4 of the present invention.

[0028] Figure 12 This is an exploded view of Example 4 of the present invention.

[0029] Figure 13 It is an exploded view of the partial structure of Examples 2 and 4 of the present invention.

[0030] Figure 14 This is an exploded view of the partial structure of Example 4 of the present invention.

[0031] Figure 15 This is an exploded view of the partial structure of Example 4 of the present invention.

[0032] Figure 16 It is a three-dimensional diagram of the outer fire cover in Examples 1-4 of the present invention.

[0033] Figure 17 This is an explosion diagram of the outer fire cover in Examples 1-4 of the present invention.

[0034] Figure 18 It is a stereoscopic view of the outer fire lower circle 29 in Examples 1-4 of the present invention.

[0035] Figure 19 This is the main view of embodiment 4 of the present invention.

[0036] Figure: 1, center ejector tube outlet, 2, outer ejector tube outlet, 3, ignition needle, 4, thermocouple, 5, burner head seat, 6, ventilation seat A, 7, ventilation seat B, 8, gas pipe connection hole B, 9, gas pipe connection hole A, 10, outer fire cover seat, 11, secondary air separator, 12, fixing plate, 13, outer ejector tube, 14, outer hole, 16, ignition needle hole, 17, middle hole, 18, outer ring, 19, center air Door, 20, center nozzle, 21, thermocouple perforation, 22, mounting plate, 23, outer air door, 24, outer tube, 25, center ejector tube, 26, inner fire cover, 27, outer ejector tube groove, 28, outer fire upper ring, 29, outer fire lower ring, 30, ignition seam, 31, outer long isolation strip, 32, inner ring A body, 33, upper ring A body, 34, outer ring A body, 35, outer short isolation strip, 36, outgoing air hole, 37, outer fire stop ring, 38. External fire baffle upper ring, 39. External air duct, 40. Primary air inlet, 41. Lower connecting foot, 42. Upper connecting foot, 43. Clamp, 44. Ignition pin B hole, 45. Middle upper hole, 46. Thermocouple B hole, 47. Connecting strip, 48. Middle lower hole, 49. Ignition pin C hole, 50. Thermocouple C hole, 51. Install bracket A, 52. Install bracket B, 53. A hole, 54. B hole, 55. Connect A hole, 56. Connect A foot, 57. Connect B hole, 58. Connect B foot, 59. Center ejector tube groove, 62. Annular body A, 63. Annular body B, 64. Annular flange, 65. Secondary air inlet. DETAILED DESCRIPTION

[0037] Example 1: A top air inlet burner, comprising a burner base 5, a central ejector tube 25, an outer ejector tube 13, an installation bracket A 51, an installation bracket B 52, a vent seat A6, and a vent seat B7. The burner base 5 is in the shape of a round cup, comprising an annular side wall and a circular bottom connected to the same body. A hole A 53 and a hole B 54 are provided on the side wall of the burner base 5. The air inlet ends of the central ejector tube 25 and the outer ejector tube 13 are both expanded and fixedly connected to the central air damper 19 and the outer air damper 23, respectively. The installation bracket A 51 comprises an annular A body 62 and a plurality of connecting legs A 56 connected to the same body. The annular A body 62 is provided with a connection A hole 55 with an internal thread, and several connection A legs 56 are welded to the central air door 19. The mounting B bracket 52 includes an annular B body 63 and several connection B legs 58 connected thereto. The annular B body 63 is provided with a connection B hole 57 with an internal thread, and several connection B legs 58 are welded to the outer air door 23. The bottom of the burner base 5 is provided with an outer ejector tube groove 27 and a central ejector tube groove 59, so that the lower small part of the central ejector tube 25 and the lower small part of the outer ejector tube 13 are respectively embedded in the central ejector tube groove 59. And the outer ejection tube groove 27, and the central ejection tube 25 and the outer ejection tube 13 are respectively welded to the bottom of the burner seat 5, the air outlet end of the vent seat A6 is provided with an internal thread adapted to the external thread of the air inlet end of the central nozzle 20 and an external thread adapted to the internal thread of the connection A hole 55, the air inlet end of the central nozzle 20 is threadedly connected to the air outlet end of the vent seat A6, the other end of the vent seat A6 is a gas pipe connection hole A9 communicated with the air inlet end of the central nozzle 20, the air outlet end of the vent seat A6 is threadedly connected to the mounting bracket 51 through the A hole 53, and the The air outlet end of the central nozzle 20 is aligned with the central hole A of the central damper 19, and the air outlet end of the vent seat B7 is provided with an internal thread adapted to the external thread of the air inlet end of the outer nozzle and an external thread adapted to the internal thread of the connecting B hole 57. The air inlet end of the outer nozzle is threadedly connected to the air outlet end of the vent seat B7, and the other end of the vent seat B7 is a gas pipe connecting hole B8 communicated with the air inlet end of the outer nozzle. The air outlet end of the vent seat B7 passes through the B hole 54 and is threadedly connected to the mounting B bracket 52, and the air outlet end of the outer nozzle is aligned with the central hole B of the outer damper 23.

[0038] The soup plate positioning ring is formed by casting or stamping, and includes a mounting plate 22 connected to the same body, a plurality of connecting strips 47 and an outer ring 18 provided with an annular flange 64. The mounting plate 22 is provided with a middle lower hole 48, an ignition needle C through-hole 49 and a thermocouple C through-hole 50. The annular flange 64 of the outer ring 18 is inserted into the upper end of the burner seat 5 and the soup plate positioning ring is welded to the burner seat 5, and the central ejector tube outlet end 1 passes through the middle lower hole 48, the upper end of the ignition needle 3 passes through the ignition needle C through-hole 49, and the upper end of the thermocouple 4 passes through the thermocouple C through-hole 50.

[0039] The secondary air separation plate 11 is placed on the mounting plate 22. The secondary air separation plate 11 is provided with a middle hole 17, an outer hole 14, an ignition needle through-hole 16 and a thermocouple through-hole 21, so that the central ejector tube outlet end 1 passes through the middle hole 17, the outer ejector tube outlet end 2 passes through the outer hole 14, the upper end of the ignition needle 3 passes through the ignition needle through-hole 16, and the upper end of the thermocouple 4 passes through the thermocouple through-hole 21.

[0040] Furthermore, the central ejection tube 25 and the outer ejection tube 13 are both formed by extrusion of stainless steel.

[0041] Furthermore, the central axis of the outer nozzle is perpendicular to the fixing plate 12 .

[0042] Example 2: Compared with Example 1, the other differences are the same except for the following: the difference is that the B hole 54 of Example 1 is opened on the side wall of the burner seat 5, and the B hole 54 of this embodiment is opened on the fixing plate 12 fixedly connected to the burner seat 5, or partially opened on the fixing plate 12 fixedly connected to the burner seat 5, and partially opened on the side wall of the burner seat 5 adjacent to the fixing plate 12.

[0043] Example 3: A burner, comprising a splint 43, an outer fire cover seat 10, an outer fire cover, an inner fire cover and an upper air inlet burner head described in Example 1, characterized in that the splint 43 is formed by casting or stamping, and the splint 43 is provided with a middle upper hole 45, an ignition needle B through-hole 44 and a thermocouple B through-hole 46, the outer edge of the splint 43 is connected to a plurality of lower connecting legs 41, the bottom surface of the outer fire cover seat 10 is provided with a plurality of upper connecting legs 42, the plurality of upper connecting legs 42 are threadedly connected or welded to the corresponding plurality of lower connecting legs 41, so that the splint 43 is fixedly connected to the outer fire cover seat 10.

[0044] The splint 43 is placed on the secondary air partition plate 11, so that the outer tube 24 provided on the bottom surface of the outer fire cover seat 10 is inserted into the outer ejector tube outlet end 2, and the central ejector tube outlet end 1 passes through the middle upper hole 45, the upper end of the ignition needle 3 passes through the ignition needle B through-hole 44, and the upper end of the thermocouple 4 passes through the thermocouple B through-hole 46.

[0045] The outer fire cover includes an annular outer fire lower ring 29 formed by casting or stamping of stainless steel and an annular outer fire upper ring 28 formed by casting or stamping of stainless steel and placed on the outer fire lower ring 29. The outer fire lower ring 29 includes an inner ring A body 32, an upper ring A body 33 and an outer ring A body 34 connected in sequence. The upper ring A body 33 is provided with a plurality of outer long isolation strips 31 protruding upward and distributed radially. Each two outer long isolation strips 31 are located outside and The outer fire upper ring 28 includes an upwardly protruding outer short isolation strip 35 and an inner air outlet 36. The outer fire upper ring 28 includes an annular outer fire stop ring 37 and an integrally connected outer fire stop ring 38. The outer fire stop ring 38 is provided with a fire starter slit 30. When the outer fire upper ring 28 is placed on the outer fire lower ring 29, the upper surface of the outer fire lower ring 29 and the lower surface of the outer fire upper ring 28 are separated into a plurality of outer air ducts 39 by the plurality of outer long isolation strips 31 and the plurality of outer short isolation strips 35. Each outer air duct 39 is surrounded by the upper surface of the outer fire lower ring 29, the lower surface of the outer fire upper ring 28, the outer long isolation strip 31, and the adjacent outer short isolation strip 35. The inner opening of the outer air duct 39 is blocked by the outer fire stop ring 37.

[0046] The gas-air mixture flows out through the outer nozzle, the outer ejector tube 13, the plurality of outgoing air holes 36, and the plurality of the outer air passages 39 and is ignited.

[0047] The lower end of the inner fire cover 26 is inserted into the central ejector tube outlet 1, and the gas-air mixture flows out and is ignited through the central nozzle 20, the central ejector tube 25, the central ejector tube outlet 1, and the inner fire cover 26. A primary air inlet 40 is formed between the soup plate positioning ring and the secondary air partition plate 11, and a secondary air inlet 65 is formed between the secondary air partition plate 11, the clamping plate 43, and the outer fire cover base 10.

[0048] Example 4: A burner, comprising a splint 43, an outer fire cover seat 10, an outer fire cover, an inner fire cover and an upper air inlet burner head as described in Example 2, characterized in that the splint 43 is formed by casting or stamping, and the splint 43 is provided with a middle upper hole 45, an ignition needle B through-hole 44 and a thermocouple B through-hole 46, the outer edge of the splint 43 is connected to a plurality of lower connecting legs 41 in the same body, and the bottom surface of the outer fire cover seat 10 is provided with a plurality of upper connecting legs 42, and the plurality of upper connecting legs 42 are threadedly connected or welded to the corresponding plurality of lower connecting legs 41, so that the splint 43 is fixedly connected to the outer fire cover seat 10.

[0049] The splint 43 is placed on the secondary air partition plate 11, so that the outer tube 24 provided on the bottom surface of the outer fire cover seat 10 is inserted into the outer ejector tube outlet end 2, and the central ejector tube outlet end 1 passes through the middle upper hole 45, the upper end of the ignition needle 3 passes through the ignition needle B through-hole 44, and the upper end of the thermocouple 4 passes through the thermocouple B through-hole 46.

[0050] The outer fire cover includes an annular outer fire lower ring 29 formed by casting or stamping of stainless steel and an annular outer fire upper ring 28 formed by casting or stamping of stainless steel and placed on the outer fire lower ring 29. The outer fire lower ring 29 includes an inner ring A body 32, an upper ring A body 33 and an outer ring A body 34 connected in sequence. The upper ring A body 33 is provided with a plurality of outer long isolation strips 31 protruding upward and distributed radially. Each two outer long isolation strips 31 are located outside and The outer fire upper ring 28 includes an upwardly protruding outer short isolation strip 35 and an inner air outlet 36. The outer fire upper ring 28 includes an annular outer fire stop ring 37 and an integrally connected outer fire stop ring 38. The outer fire stop ring 38 is provided with a fire starter slit 30. When the outer fire upper ring 28 is placed on the outer fire lower ring 29, the upper surface of the outer fire lower ring 29 and the lower surface of the outer fire upper ring 28 are separated into a plurality of outer air ducts 39 by the plurality of outer long isolation strips 31 and the plurality of outer short isolation strips 35. Each outer air duct 39 is surrounded by the upper surface of the outer fire lower ring 29, the lower surface of the outer fire upper ring 28, the outer long isolation strip 31, and the adjacent outer short isolation strip 35. The inner opening of the outer air duct 39 is blocked by the outer fire stop ring 37.

[0051] The gas-air mixture flows out through the outer nozzle, the outer ejector tube 13, the plurality of outgoing air holes 36, and the plurality of the outer air passages 39 and is ignited.

[0052] The lower end of the inner fire cover 26 is inserted into the central ejector tube outlet 1, and the gas-air mixture flows out and is ignited through the central nozzle 20, the central ejector tube 25, the central ejector tube outlet 1, and the inner fire cover 26. A primary air inlet 40 is formed between the soup plate positioning ring and the secondary air partition plate 11, and a secondary air inlet 65 is formed between the secondary air partition plate 11, the clamping plate 43, and the outer fire cover base 10.

Claims

1. A top air inlet burner, characterized in that: The invention comprises a burner base (5), a central ejector tube (25), an outer ejector tube (13), an installation A bracket (51), an installation B bracket (52), a vent seat A (6), and a vent seat B (7). The burner base (5) comprises an annular side wall and a circular bottom connected to the same body. The burner base (5) is provided with an A hole (53) and a B hole (54) on the side wall. The air inlet ends of the central ejector tube (25) and the outer ejector tube (13) are both made into flared ends and are fixedly connected to the central air door (19) and the outer air door (23) respectively. The installation A bracket (51) comprises an annular A body (62) and a plurality of connecting A feet (56) connected to the same body. The annular A body (62) is provided with a connecting A hole (55) with an internal thread. The connecting A foot (56) is welded to the central air door (19), the mounting B bracket (52) includes an annular B body (63) and a plurality of connecting B feet (58) connected to the same body, the annular B body (63) is provided with a connecting B hole (57) with an internal thread, and the plurality of connecting B feet (58) are welded to the outer air door (23), and the bottom of the burner base (5) is provided with an outer ejector tube groove (27) and a central ejector tube groove (59), so that the lower small part of the central ejector tube (25) and the lower small part of the outer ejector tube (13) are respectively embedded in the central ejector tube groove (59) and the outer ejector tube groove (27), and the central ejector tube (25) and the outer ejector tube (13) are respectively welded to the bottom of the burner base (5). The outlet end of the vent seat A (6) is provided with an internal thread adapted to the external thread of the inlet end of the central nozzle (20) and an external thread adapted to the internal thread of the connection A hole (55). The inlet end of the central nozzle (20) is threadedly connected to the outlet end of the vent seat A (6). The other end of the vent seat A (6) is a gas pipe connection hole A (9) communicating with the inlet end of the central nozzle (20). The outlet end of the vent seat A (6) passes through the A hole (53) and is threadedly connected to the mounting bracket A (51), and the outlet end of the central nozzle (20) is aligned with the central hole A of the central damper (19). The outlet end of the vent seat B (7) is provided with an internal thread adapted to the external thread of the inlet end of the external nozzle and a threaded connection to the connection B hole (5 7) an external thread adapted to the internal thread, the air inlet end of the outer nozzle is threadedly connected to the air outlet end of the vent seat B (7), the other end of the vent seat B (7) is a gas pipe connection hole B (8) communicating with the air inlet end of the outer nozzle, the air outlet end of the vent seat B (7) passes through the B hole (54) and is threadedly connected to the mounting bracket B (52), and the air outlet end of the outer nozzle is aligned with the center hole B of the outer air door (23), the soup plate positioning ring is formed by casting or stamping, and includes a mounting plate (22) connected to the same body, a plurality of connecting strips (47) and an outer ring (18) provided with an annular flange (64), the mounting plate (22) is provided with a middle lower hole (48), an ignition needle C through hole (49) and a thermocouple C through hole (50),The annular flange (64) of the outer ring (18) is inserted into the upper end of the burner seat (5) and the soup plate positioning ring is fixedly connected to the burner seat (5), and the central ejector tube outlet end (1) passes through the middle lower hole (48), the upper end of the ignition needle (3) passes through the ignition needle C perforation (49), and the upper end of the thermocouple (4) passes through the thermocouple C perforation (50). The secondary air partition plate (11) is placed on the mounting plate (22). The secondary air partition plate (11) is provided with a middle hole (17), an outer hole (14), an ignition needle perforation (16) and a thermocouple perforation (21). The central ejector tube outlet end (1) passes through the middle hole (17), the outer ejector tube outlet end (2) passes through the outer hole (14), the upper end of the ignition needle (3) passes through the ignition needle perforation (16), and the upper end of the thermocouple (4) passes through the thermocouple perforation (21).

2. A top air inlet burner, characterized in that: The invention comprises a burner base (5), a central ejector tube (25), an outer ejector tube (13), an installation bracket A (51), an installation bracket B (52), a vent seat A (6), and a vent seat B (7). The burner base (5) is provided with an A hole (53) on the side wall, and a B hole (54) is opened on a fixing plate (12) fixedly connected to the burner base (5), or the B hole (54) is partially opened on the fixing plate (12) fixedly connected to the burner base (5) and partially opened on the side wall of the burner base (5) adjacent to the fixing plate (12). The air inlet ends of the central ejector tube (25) and the outer ejector tube (13) are both made into flared ends and are fixedly connected to the central air door (19) respectively. ), outer air door (23), the mounting A bracket (51) includes an annular A body (62) and a plurality of connecting A legs (56) connected thereto, the annular A body (62) is provided with an internally threaded connecting A hole (55), and a plurality of the connecting A legs (56) are welded to the central air door (19), the mounting B bracket (52) includes an annular B body (63) and a plurality of connecting B legs (58) connected thereto, the annular B body (63) is provided with an internally threaded connecting B hole (57), and a plurality of the connecting B legs (58) are welded to the outer air door (23), the bottom of the burner head seat (5) is provided with an outer ejector tube groove (27) and a central The ejector tube groove (59) is configured such that the lower small portion of the central ejector tube (25) and the lower small portion of the outer ejector tube (13) are respectively embedded in the central ejector tube groove (59) and the outer ejector tube groove (27), and the central ejector tube (25) and the outer ejector tube (13) are respectively welded to the burner head seat (5), and the outlet end of the vent seat A (6) is provided with an internal thread adapted to the external thread of the inlet end of the central nozzle (20) and an external thread adapted to the internal thread of the connection A hole (55), the inlet end of the central nozzle (20) is threadedly connected to the outlet end of the vent seat A (6), and the other end of the vent seat A (6) is adapted to the inlet end of the central nozzle (20). The gas pipe connecting hole A (9) communicates with the gas end, the gas outlet end of the vent seat A (6) passes through the A hole (53) and is threadedly connected to the mounting bracket A (51), and the gas outlet end of the central nozzle (20) is aligned with the central hole A of the central damper (19), the gas outlet end of the vent seat B (7) is provided with an internal thread adapted to the external thread of the inlet end of the outer nozzle and an external thread adapted to the internal thread of the connecting hole B (57), the inlet end of the outer nozzle is threadedly connected to the gas outlet end of the vent seat B (7), the other end of the vent seat B (7) is a gas pipe connecting hole B (8) communicated with the inlet end of the outer nozzle, the gas outlet end of the vent seat B (7) passes through the B The hole (54) is threadedly connected to the mounting bracket B (52), and the air outlet end of the outer nozzle is aligned with the center hole B of the outer air door (23). The soup plate positioning ring is formed by casting or stamping, and includes a mounting plate (22) connected to the body, a plurality of connecting strips (47) and an outer ring (18) provided with an annular flange (64).The mounting plate (22) is provided with a middle lower hole (48), an ignition needle C through hole (49) and a thermocouple C through hole (50), the annular flange (64) of the outer ring (18) is inserted into the upper end of the burner seat (5) and the soup plate positioning ring is fixedly connected to the burner seat (5), and the gas outlet end (1) of the central ejector tube passes through the middle lower hole (48), the upper end of the ignition needle (3) passes through the ignition needle C through hole (49), and the upper end of the thermocouple (4) passes through the thermocouple C through hole (50), and a middle The secondary air partition plate (11) having the hole (17), the outer hole (14), the ignition needle through hole (16) and the thermocouple through hole (21) is placed on the mounting plate (22), so that the central ejector tube outlet end (1) passes through the middle hole (17), the outer ejector tube outlet end (2) passes through the outer hole (14), the upper end of the ignition needle (3) passes through the ignition needle through hole (16), and the upper end of the thermocouple (4) passes through the thermocouple through hole (21).

3. The upper air inlet burner according to claim 1 or 2, characterized in that: The central ejection tube (25) and the outer ejection tube (13) are both formed by extrusion of stainless steel.

4. The upper air inlet burner according to claim 2, characterized in that: The central axis of the outer nozzle is perpendicular to the fixed plate (12).

5. A burner comprising a clamping plate (43), an outer fire cover seat (10), an outer fire cover, an inner fire cover and an upper air inlet burner according to claim 1 or 2, characterized in that: The splint (43) is formed by casting or stamping. The splint (43) is provided with a middle upper hole (45), an ignition needle B perforation (44) and a thermocouple B perforation (46). The outer edge of the splint (43) is connected to a plurality of lower connecting legs (41) in a body. The bottom surface of the outer fire cover seat (10) is provided with a plurality of upper connecting legs (42). The plurality of upper connecting legs (42) are threadedly connected or welded with the corresponding plurality of lower connecting legs (41) so that the splint (43) is fixedly connected to the outer fire cover seat (10). The splint (43) is placed on the secondary air partition plate (11), and the outer tube (24) provided on the bottom surface of the outer fire cover seat (10) is inserted into the air outlet end ( 2), and the central ejector tube outlet end (1) passes through the middle upper hole (45), the upper end of the ignition needle (3) passes through the ignition needle B perforation (44), the upper end of the thermocouple (4) passes through the thermocouple B perforation (46), a primary air inlet (40) is formed between the soup plate positioning ring and the secondary air partition plate (11), a secondary air inlet (65) is formed between the secondary air partition plate (11) and the clamping plate (43) and the outer fire cover seat (10), the outer fire cover includes an annular outer fire lower ring (29) formed by casting or stamping of stainless steel and an annular outer fire upper ring (28) formed by casting or stamping of stainless steel and placed on the outer fire lower ring (29), the outer fire The lower ring (29) includes an inner ring A body (32), an upper ring A body (33) and an outer ring A body (34) connected in sequence. The upper ring A body (33) is provided with a plurality of outer long isolation strips (31) protruding upward and distributed radially. Between each two outer long isolation strips (31) is an outer short isolation strip (35) located on the outside and protruding upward and an outgoing air hole (36) located on the inside. The outer fire upper ring (28) includes an annular outer fire-blocking ring (37) and an outer fire-blocking upper ring (38) connected to the same body. The outer fire-blocking upper ring (38) is provided with a fire-starting seam (30). When the outer fire upper ring (28) is placed on the outer fire lower ring (29), the upper surface of the outer fire lower ring (29) The lower side of the outer fire upper circle (28) is divided into a plurality of outer air passages (39) by the plurality of outer long isolation strips (31) and the plurality of outer short isolation strips (35). Each outer air passage (39) is respectively surrounded by the upper side of the outer fire lower circle (29), the lower side of the outer fire upper circle (28), the outer long isolation strip (31) and the outer short isolation strip (35) adjacent thereto. The inner opening of the outer air passage (39) is shielded by the outer fire blocking circle (37). The lower end of the inner fire cover (26) is inserted into the central ejector pipe outlet end (1). The gas-air mixture flows out through the central nozzle (20), the central ejector pipe (25), the central ejector pipe outlet end (1) and the inner fire cover (26) and is ignited.

6. A burner comprising a clamping plate (43), an outer fire cover seat (10), an outer fire cover, an inner fire cover and an upper air inlet burner according to claim 3, characterized in that: The splint (43) is formed by casting or stamping. The splint (43) is provided with a middle upper hole (45), an ignition needle B perforation (44) and a thermocouple B perforation (46). The outer edge of the splint (43) is connected to a plurality of lower connecting legs (41) in a body. The bottom surface of the outer fire cover seat (10) is provided with a plurality of upper connecting legs (42). The plurality of upper connecting legs (42) are threadedly connected or welded with the corresponding plurality of lower connecting legs (41) so that the splint (43) is fixedly connected to the outer fire cover seat (10). The splint (43) is placed on the secondary air partition plate (11), and the outer tube (24) provided on the bottom surface of the outer fire cover seat (10) is inserted into the air outlet end ( 2), and the central ejector tube outlet end (1) passes through the middle upper hole (45), the upper end of the ignition needle (3) passes through the ignition needle B perforation (44), the upper end of the thermocouple (4) passes through the thermocouple B perforation (46), a primary air inlet (40) is formed between the soup plate positioning ring and the secondary air partition plate (11), a secondary air inlet (65) is formed between the secondary air partition plate (11) and the clamping plate (43) and the outer fire cover seat (10), the outer fire cover includes an annular outer fire lower ring (29) formed by casting or stamping of stainless steel and an annular outer fire upper ring (28) formed by casting or stamping of stainless steel and placed on the outer fire lower ring (29), the outer fire The lower ring (29) includes an inner ring A body (32), an upper ring A body (33) and an outer ring A body (34) connected in sequence. The upper ring A body (33) is provided with a plurality of outer long isolation strips (31) protruding upward and distributed radially. Between each two outer long isolation strips (31) is an outer short isolation strip (35) located on the outside and protruding upward and an outgoing air hole (36) located on the inside. The outer fire upper ring (28) includes an annular outer fire-blocking ring (37) and an outer fire-blocking upper ring (38) connected to the same body. The outer fire-blocking upper ring (38) is provided with a fire-starting seam (30). When the outer fire upper ring (28) is placed on the outer fire lower ring (29), the upper surface of the outer fire lower ring (29) The lower side of the outer fire upper circle (28) is divided into a plurality of outer air passages (39) by the plurality of outer long isolation strips (31) and the plurality of outer short isolation strips (35). Each outer air passage (39) is respectively surrounded by the upper side of the outer fire lower circle (29), the lower side of the outer fire upper circle (28), the outer long isolation strip (31) and the outer short isolation strip (35) adjacent thereto. The inner opening of the outer air passage (39) is shielded by the outer fire blocking circle (37). The lower end of the inner fire cover (26) is inserted into the central ejector pipe outlet end (1). The gas-air mixture flows out through the central nozzle (20), the central ejector pipe (25), the central ejector pipe outlet end (1) and the inner fire cover (26) and is ignited.

7. A burner comprising a clamping plate (43), an outer fire cover seat (10), an outer fire cover, an inner fire cover and an upper air inlet burner according to claim 4, characterized in that: The splint (43) is formed by casting or stamping. The splint (43) is provided with a middle upper hole (45), an ignition needle B perforation (44) and a thermocouple B perforation (46). The outer edge of the splint (43) is connected to a plurality of lower connecting legs (41) in a body. The bottom surface of the outer fire cover seat (10) is provided with a plurality of upper connecting legs (42). The plurality of upper connecting legs (42) are threadedly connected or welded with the corresponding plurality of lower connecting legs (41) so that the splint (43) is fixedly connected to the outer fire cover seat (10). The splint (43) is placed on the secondary air partition plate (11), and the outer tube (24) provided on the bottom surface of the outer fire cover seat (10) is inserted into the air outlet end ( 2), and the central ejector tube outlet end (1) passes through the middle upper hole (45), the upper end of the ignition needle (3) passes through the ignition needle B perforation (44), the upper end of the thermocouple (4) passes through the thermocouple B perforation (46), a primary air inlet (40) is formed between the soup plate positioning ring and the secondary air partition plate (11), a secondary air inlet (65) is formed between the secondary air partition plate (11) and the clamping plate (43) and the outer fire cover seat (10), the outer fire cover includes an annular outer fire lower ring (29) formed by casting or stamping of stainless steel and an annular outer fire upper ring (28) formed by casting or stamping of stainless steel and placed on the outer fire lower ring (29), the outer fire The lower ring (29) includes an inner ring A body (32), an upper ring A body (33) and an outer ring A body (34) connected in sequence. The upper ring A body (33) is provided with a plurality of outer long isolation strips (31) protruding upward and distributed radially. Between each two outer long isolation strips (31) is an outer short isolation strip (35) located on the outside and protruding upward and an outgoing air hole (36) located on the inside. The outer fire upper ring (28) includes an annular outer fire-blocking ring (37) and an outer fire-blocking upper ring (38) connected to the same body. The outer fire-blocking upper ring (38) is provided with a fire-starting seam (30). When the outer fire upper ring (28) is placed on the outer fire lower ring (29), the upper surface of the outer fire lower ring (29) The lower side of the outer fire upper circle (28) is divided into a plurality of outer air passages (39) by the plurality of outer long isolation strips (31) and the plurality of outer short isolation strips (35). Each outer air passage (39) is respectively surrounded by the upper side of the outer fire lower circle (29), the lower side of the outer fire upper circle (28), the outer long isolation strip (31) and the outer short isolation strip (35) adjacent thereto. The inner opening of the outer air passage (39) is shielded by the outer fire blocking circle (37). The lower end of the inner fire cover (26) is inserted into the central ejector pipe outlet end (1). The gas-air mixture flows out through the central nozzle (20), the central ejector pipe (25), the central ejector pipe outlet end (1) and the inner fire cover (26) and is ignited.

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