An easy-to-clean upper air inlet burner

Abstract

The invention discloses an easy-to-clean upper air inlet burner, comprising a burner head, a water tray, a base and a connecting support column, wherein the water tray is arranged between the burner head and the base, the connecting support column passes through the water tray and the base in sequence from top to bottom, so as to realize the fixed connection between the water tray and the base, and the burner head is provided with a burner head supporting point, the burner head supporting point and the connecting support column contact each other, so as to realize the connection and positioning between the burner head and the base. The invention can not only realize the connection of the water tray and the vertical positioning of the burner head, so that the burner head does not directly contact the base, the heat transfer is reduced, and the stability of the combustion condition is improved, but also because the number of connecting support columns is small, the burner is easier to maintain.

Description

Technical Field

[0001] The invention relates to an easy-to-clean upper air-inlet burner. Background Art

[0002] At present, the upper air inlet burners on the market use screws to connect the mounting bracket to the panel or water tray. The vertical positioning between the burner head and the mounting bracket is limited by another supporting structure. Generally, more than three screws and mounting columns are used. In this way, the number of convex points on the surface of the water tray will increase, which will have a certain impact on cleaning. At the same time, the top of the nozzle seat is flat, which is easy to accumulate dirt and difficult to clean, which has a certain impact on the installation height.

[0003] In the prior art, the upper burner of the upper air inlet burner has direct contact between the upper burner head and the lower nozzle seat. When the burner is working, the high temperature of the fire cover burner head directly transfers heat to the nozzle seat through direct conduction, resulting in significant differences in the combustion conditions of the cold and hot states. First, yellow flames are prone to occur, and second, the heat load attenuation is large. At the same time, there is a guide plate above the outlet end of the ejector tube of the upper air inlet burner to guide the airflow to be evenly distributed in the fire distribution cavity, so that the flame burns evenly and stably, or multiple air inlets are set to reduce the flow distance of the airflow from the outlet end to the circumference. The above structure causes the airflow to have many flow angles and large pressure loss, which has a certain impact on the combustion effect. At the same time, its structure is relatively complex and the cost is high. Summary of the invention

[0004] The purpose of the present invention is to provide a technical solution for an easy-to-clean top-inlet burner to address the deficiencies in the prior art. The technical solution not only realizes the connection of a water tray and the vertical positioning of a burner head so that the burner head is not in direct contact with the base, thereby reducing heat transfer and improving the stability of the combustion conditions, but also makes the burner easier to maintain due to the small number of connecting support columns.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An easy-to-clean top-inlet burner, characterized in that it includes a burner head, a water tray, a base and a connecting support column, the water tray being arranged between the burner head and the base, the connecting support column passing through the water tray and the base in sequence from top to bottom to achieve a fixed connection between the water tray and the base, a burner head supporting point being arranged on the burner head, the burner head supporting point being in contact with the connecting support column to achieve connection and positioning between the burner head and the base; the connection of the water tray and the vertical positioning of the burner head up and down can be achieved through the design of the connecting support column, so that the burner head is not in direct contact with the base, the heat transfer is reduced, and the stability of the combustion condition is improved, and at the same time, due to the small number of connecting support columns, the burner is easier to maintain.

[0007] Furthermore, a first mounting hole is provided on the water tray, and a second mounting hole matching the first mounting hole is provided on the base. The lower part of the connecting support column passes through the first mounting hole and is connected to the second mounting hole to realize a fixed connection between the water tray and the base. The first mounting holes are evenly distributed on the water tray, and the second mounting holes are evenly distributed on the base. The lower part of the connecting support column is a threaded structure, which not only improves the stability and reliability of the connection between the water tray and the base, but also improves the support stability of the burner head, and the installation and disassembly are convenient and quick.

[0008] Furthermore, a main fire dividing chamber is provided in the burner head, a main ejector pipe assembly is provided in the burner head, and a first gas supply assembly is provided in the base. The first gas supply assembly is connected with the main fire dividing chamber through the main ejector pipe assembly to realize continuous gas supply to the main fire dividing chamber. The gas can be continuously input into the main fire dividing chamber through the first gas supply assembly via the main ejector pipe assembly. A first guide plate is provided in the main fire dividing chamber. The first guide plate is horizontally or obliquely connected to the main fire dividing chamber. The first guide plate can also be detachably connected to the main fire dividing chamber through a fire cover limiting column. The horizontal area between the inner side surface of the first guide plate and the inner wall of the main fire dividing chamber is S1. The area of ​​the horizontal area S1 is 1.5 to 3.5 times the area of ​​the outer fire hole on the outer fire cover. The first guide plate facilitates the gas to flow in a circle without turning along the inside of the main fire dividing chamber, with small resistance loss and uniform distribution. The flame is ejected powerfully, the effect of ejecting secondary air is good, the combustion is more complete, the energy efficiency is high, the firepower is large, the structure is simple and compact, and the overall effect is good. The first guide plate preferably adopts an inclined structure.

[0009] Furthermore, the main ejector tube assembly includes a first main fire ejector tube and a second main fire ejector tube, which are both connected to the main fire dividing chamber along the tangent direction of the burner head, and the gas outlet directions of the first main fire ejector tube and the second main fire ejector tube are consistent, ensuring that the gas flows in a circle without turning inside the main fire dividing chamber, with small resistance loss. The first main fire ejector tube and the second main fire ejector tube are distributed at 180° at the bottom of the burner head. The distribution of the first main fire ejector tube and the second main fire ejector tube of the above structure is not only beautiful, but also improves the stability and reliability of the installation. Through the synchronous gas supply of the first main fire ejector tube and the second main fire ejector tube, the gas can fill the entire main fire dividing chamber by flowing half a circle along the main fire dividing chamber, with high gas supply efficiency, more complete combustion, high energy efficiency and high firepower.

[0010] Furthermore, the first gas delivery component includes a first main fire nozzle seat, a second main fire nozzle seat, a first main fire positioning block and a second main fire positioning block. The first main fire nozzle seat and the second main fire nozzle seat are arranged on both sides of the top of the base, and the gas outlet ends of the first main fire nozzle seat and the second main fire nozzle seat are respectively provided with the first main fire nozzle and the second main fire nozzle, and the first main fire nozzle seat and the second main fire nozzle seat are respectively provided with a first gas supply channel, the first main fire positioning block and the second main fire positioning block are arranged on both sides of the bottom of the base, a main fire air inlet hole is provided in the first main fire positioning block, and a gas delivery channel is provided in the second main fire positioning block, the main fire air inlet hole is connected to the first gas supply channel on the first main fire nozzle seat, and the gas delivery channel is connected to the first gas supply channel on the second main fire nozzle seat, the first main fire positioning block is connected to the second main fire positioning block through a shunt pipe, and the main fire air inlet hole is connected to the gas delivery channel through the shunt pipe. The tops of the first main fire nozzle seat and the second main fire nozzle seat are designed to be round, dirt is not easy to accumulate, and the round surface is easy to maintain. The first main fire positioning block is connected to the second main fire positioning block through a diverter pipe, so that one-time air intake of the main fire air inlet hole can meet the operation of the first main fire nozzle and the second main fire nozzle, which greatly improves the transmission efficiency of the gas in the main fire fire-dividing cavity. It has a compact structure, high gas transmission efficiency, more complete combustion, high energy efficiency and high firepower.

[0011] Furthermore, a second through groove and a third through groove are provided on the water tray, the first main fire nozzle seat matches the second through groove, and the second main fire nozzle seat matches the third through groove. The first main fire nozzle seat and the second main fire nozzle seat can be limited and fixed through the second through groove and the third through groove, thereby improving the installation stability of the first main fire nozzle seat and the second main fire nozzle seat.

[0012] Furthermore, a central fire support column is provided in the burner head, the central fire support column is provided with a central fire fire dividing cavity, the central fire support column is provided with a central fire introduction tube, the central fire introduction tube is connected to the central fire fire dividing cavity along the tangent direction of the central support column, a second gas transmission component is provided on the base, the second gas transmission component is connected with the central fire fire dividing cavity through the central fire introduction tube, so as to realize continuous gas supply to the central fire fire dividing cavity, the fuel gas is input into the central fire fire dividing cavity through the central fire introduction tube along the tangent direction by the second gas transmission component, the central fire support column is provided with a central through hole, the central fire An ignition needle limiting hole and a thermocouple limiting hole are arranged between the support column and the burner head, a first positioning hole and a second positioning hole are arranged on the water tray, a thermocouple mounting column and an ignition needle mounting column are arranged on the base, the ignition needle mounting column matches the ignition needle limiting hole and the first positioning hole, the thermocouple mounting column matches the thermocouple limiting hole and the second positioning hole, the center fire support column is used to support and position the center fire cover, the ignition needle limiting hole and the ignition needle mounting column are used to fix the ignition needle, and the thermocouple limiting hole and the thermocouple mounting are used to fix the thermocouple.

[0013] Furthermore, a second guide plate is provided in the center fire dividing chamber, and the second guide plate is horizontally or inclinedly arranged in the center fire dividing chamber, and the horizontal area between the inner side surface of the second guide plate and the inner wall of the center fire dividing chamber is S2, and the area of ​​the horizontal area S2 is 1.5 to 3.5 times the area of ​​the inner fire hole on the center fire cover. The second guide plate facilitates the gas to flow in a circular shape without turning along the inside of the center fire dividing chamber, with small resistance loss and uniform distribution, powerful flame ejection, good effect on inducing secondary air, more complete combustion, high energy efficiency and high firepower, simple and compact structure, and good overall effect. The second guide plate preferably adopts an inclined structure.

[0014] Furthermore, the second gas delivery assembly includes a center fire nozzle seat and a center fire positioning block, the center fire nozzle seat and the center fire positioning block are respectively located at the upper and lower sides of the base, the center fire positioning block is provided with a center fire air inlet hole, the center fire nozzle seat is provided with a second air supply channel, the center fire air inlet hole is connected with the second air supply channel, the center fire nozzle seat is provided with a center fire nozzle at the air outlet end, the water tray is provided with a first through groove, and the first through groove matches the center fire nozzle seat. The top of the center fire nozzle seat is designed to be circular, dirt is not easy to accumulate, and the circular surface is easy to maintain. The gas is input into the second air supply channel through the center fire air inlet hole, and then the gas is sprayed into the center fire ejector pipe by the center fire nozzle, and then input into the center fire fire separation cavity through the center fire ejector pipe. The first through groove improves the stability and reliability of the installation of the center fire nozzle seat.

[0015] Furthermore, a base support column is provided on the base, a through hole is provided in the base support column, and a countersunk hole is provided at the bottom of the through hole. The design of the above structure can meet the requirements of installation from bottom to top or from top to bottom. The countersunk hole is a conical structure. When installing from top to bottom, the taper can guide the screws for easy installation.

[0016] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0017] 1. The design of connecting support columns can realize the connection of water tray and the vertical positioning of burner head, so that burner head is not in direct contact with the base, heat transfer is reduced, and the stability of combustion condition is improved. At the same time, due to the small number of connecting support columns, the burner is easier to maintain.

[0018] 2. The first guide plate and the second guide plate facilitate the gas to flow along the circumference of the inside of the fire distribution chamber without turning corners, with small resistance loss and uniform distribution, powerful flame ejection, good effect on the introduction of secondary air, more complete combustion, high energy efficiency and high firepower, simple and compact structure, and good overall effect. The first guide plate and the second guide plate preferably adopt an inclined structure.

[0019] 3. The distribution of the first main fire ejector and the second main fire ejector is not only beautiful, but also improves the stability and reliability of the installation. Through the synchronous gas transmission of the first main fire ejector and the second main fire ejector, the gas flows along the main fire splitting cavity for half a circle to fill the entire main fire splitting cavity, with high gas transmission efficiency, more complete combustion, high energy efficiency and high firepower.

[0020] 4. The design of the base support column can meet the requirements of installation from bottom to top or from top to bottom. The countersunk hole is a conical structure. When installing from top to bottom, the taper can guide the screws for easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings:

[0022] Figure 1 This is a rendering of an easy-to-clean upper air inlet burner of the present invention;

[0023] Figure 2 for Figure 1 The effect diagram of the middle A direction;

[0024] Figure 3 An exploded view of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the bottom of the furnace head in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the base in the present invention;

[0027] Figure 6 for Figure 5 Schematic diagram of the structure in the middle BB direction;

[0028] Figure 7 A top view of the present invention;

[0029] Figure 8 for Figure 7 Schematic diagram of the structure in the CC direction;

[0030] Fig. 9 for Figure 7 Schematic diagram of the structure in the DD direction;

[0031] Fig.10 for Figure 7 Schematic diagram of the structure in the EE direction.

[0032] In the figure: 1-burner head; 2-water tray; 3-center fire nozzle seat; 4-center fire nozzle; 5-first main fire nozzle seat; 6-second main fire nozzle seat; 7-second main fire nozzle; 8-center fire ejector tube; 9-first main fire ejector tube; 10-second main fire ejector tube; 11-connecting support column; 12-center fire air inlet hole; 13-main fire air inlet hole; 14-center fire positioning block; 15-first main fire positioning block; 16-second main fire positioning block; 17-base support column; 18-fire cover limit column; 19-main fire separation cavity; 20-center fire support Column; 21-center fire fire-dividing cavity; 22-first guide plate; 23-second guide plate; 24-first through groove; 25-second through groove; 26-third through groove; 27-first positioning hole; 28-second positioning hole; 29-first mounting hole; 30-base; 31-thermocouple mounting column; 32-ignition needle mounting column; 33-second mounting hole; 34-center through hole; 35-ignition needle limiting hole; 36-thermocouple limiting hole; 37-burner head supporting point; 38-first main fire nozzle; 39-gas transmission channel; 40-diverter pipe; 41-countersunk hole. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0036] like Figures 1 to 10As shown, an easy-to-clean upper air inlet burner of the present invention includes a burner head 1, a water tray 2, a base 30 and a connecting support column 11. The water tray 2 is arranged between the burner head 1 and the base 30. The connecting support column 11 passes through the water tray 2 and the base 30 from top to bottom to achieve a fixed connection between the water tray 2 and the base 30. The burner head 1 is provided with a burner head support point 37. In this embodiment, the burner head support point is installed on the burner head, the first main fire ejection tube and the second main fire ejection tube. The specific arrangement can be based on the installation requirements. The burner head support point 37 and the connecting support column 11 are in contact with each other to achieve the connection and positioning of the burner head 1 and the base 30. The water tray 2 is provided with a first mounting hole 29, which is evenly distributed on the water tray 2. The base 30 is provided with a second mounting hole 33 that matches the first mounting hole 29, which is evenly distributed on the base 30. The lower part of the connecting support column 11 passes through the first mounting hole 29 and is connected to the second mounting hole 33 to achieve a fixed connection between the water tray 2 and the base 30. The lower part of the connecting support column 11 is a threaded structure, which not only improves the stability and reliability of the connection between the water tray 2 and the base 30, but also improves the support stability and strength of the burner 1, and is convenient and quick to install and disassemble. The design of the connecting support column 11 can realize the connection of the water tray 2 and the vertical positioning of the burner 1, so that the burner 1 does not directly contact the base 30, the heat transfer is reduced, and the stability of the combustion condition is improved. At the same time, due to the small number of connecting support columns 11, the burner is easier to maintain.

[0037] A main fire dividing chamber 19 is provided in the burner head 1, and a main ejector pipe assembly is provided in the burner head 1. A first gas supply assembly is provided at the base 30. The first gas supply assembly is connected with the main fire dividing chamber 19 through the main ejector pipe assembly to realize continuous gas supply to the main fire dividing chamber 19. The fuel gas can be continuously input into the main fire dividing chamber 19 through the first gas supply assembly via the main ejector pipe assembly.

[0038] A first guide plate 22 is provided in the main fire dividing chamber 19. The first guide plate 22 is horizontally or obliquely connected to the main fire dividing chamber 19. The first guide plate 22 can also be detachably connected to the main fire dividing chamber 19 through the fire cover limiting column 18. The horizontal area between the inner side surface of the first guide plate 22 and the inner wall of the main fire dividing chamber 19 is S1. The area of ​​the horizontal area S1 is 1.5 to 3.5 times the area of ​​the external fire holes on the external fire cover. The external fire hole area refers to the total area of ​​all external fire holes on the external fire cover. The first guide plate 22 facilitates the gas to flow in a circle without turning along the inside of the main fire dividing chamber 19, with small resistance loss and uniform distribution. The flame is ejected powerfully, the effect of inducing secondary air is good, the combustion is more complete, the energy efficiency is high, the firepower is large, the structure is simple and compact, and the overall effect is good. The first guide plate 22 preferably adopts an inclined structure.

[0039] The main ejector tube assembly includes a first main fire ejector tube 9 and a second main fire ejector tube 10. The first main fire ejector tube 9 and the second main fire ejector tube 10 are both connected to the main fire fire-dividing chamber 19 along the tangent direction of the burner head 1, ensuring that the gas flows along the circumference of the main fire fire-dividing chamber 19 without turning, and the resistance loss is small. The first main fire ejector tube 9 and the second main fire ejector tube 10 are distributed at the bottom of the burner head 1 at 180°, and the gas outlet directions of the first main fire ejector tube 9 and the second main fire ejector tube 10 are consistent. The distribution of the first main fire ejector tube 9 and the second main fire ejector tube 10 of the above structure is not only beautiful, but also improves the stability and reliability of the installation. Through the synchronous gas transmission of the first main fire ejector tube 9 and the second main fire ejector tube 10, the gas flows along the main fire fire-dividing chamber 19 for half a circle to fill the entire main fire fire-dividing chamber 19, with high gas transmission efficiency, more complete combustion, high energy efficiency and high firepower.

[0040] The first gas delivery assembly includes a first main fire nozzle seat 5, a second main fire nozzle seat 6, a first main fire positioning block 15 and a second main fire positioning block 16. The first main fire nozzle seat 5 and the second main fire nozzle seat 6 are arranged on both sides of the top of the base 30. The gas outlet ends of the first main fire nozzle seat 5 and the second main fire nozzle seat 6 are respectively provided with a first main fire nozzle 38 and a second main fire nozzle 7. The first main fire nozzle seat 5 and the second main fire nozzle seat 6 are respectively provided with a first gas supply channel. The first main fire positioning block 15 and the second main fire positioning block 16 are arranged on both sides of the bottom of the base 30. A main fire air inlet hole 13 is provided in the first main fire positioning block 15, and a gas delivery channel 39 is provided in the second main fire positioning block 16. The main fire air inlet hole 13 is connected to the first gas supply channel on the first main fire nozzle seat 5, and the gas delivery channel 39 is connected to the first gas supply channel on the second main fire nozzle seat 6. The first main fire positioning block 15 is connected to the second main fire positioning block 16 through a shunt pipe 40, and the main fire air inlet hole 13 is connected to the gas delivery channel 39 through the shunt pipe 40. The tops of the first main fire nozzle seat 5 and the second main fire nozzle seat 6 are designed to be round, dirt is not easy to accumulate, and the round surface is easy to maintain. The first main fire positioning block 15 is connected to the second main fire positioning block 16 through the shunt pipe 40, so that the primary air intake of the main fire air inlet hole 13 can meet the operation of the first main fire nozzle 38 and the second main fire nozzle 7, which greatly improves the transmission efficiency of the gas in the main fire separation chamber 19. The structure is compact, the gas transmission efficiency is high, the combustion is more complete, the energy efficiency is high, and the firepower is large. The water tray 2 is provided with a second through groove 25 and a third through groove 26. The first main fire nozzle seat 5 matches the second through groove 25, and the second main fire nozzle seat 6 matches the third through groove 26. The first main fire nozzle seat 5 and the second main fire nozzle seat 6 can be limited and fixed by the second through groove 25 and the third through groove 26, which improves the installation stability of the first main fire nozzle seat 5 and the second main fire nozzle seat 6.

[0041] A center fire support column 20 is provided in the furnace head 1, and a center fire support column 20 is provided with a center fire fire dividing cavity 21. The center fire support column 20 is provided with a center fire introducer pipe 8, and the center fire introducer pipe 8 is connected to the center fire fire dividing cavity 21 along the tangential direction of the center support column. A second gas delivery component is provided on the base 30, and the second gas delivery component is connected to the center fire fire dividing cavity 21 through the center fire introducer pipe 8 to realize continuous gas supply to the center fire fire dividing cavity 21. The fuel gas is input into the center fire fire dividing cavity 21 along the tangential direction through the center fire introducer pipe 8 by the second gas delivery component.

[0042] A center through hole 34 is provided on the center fire support column 20, an ignition needle limiting hole 35 and a thermocouple limiting hole 36 are provided between the center fire support column 20 and the burner head 1, a first positioning hole 27 and a second positioning hole 28 are provided on the water tray 2, a thermocouple mounting column 31 and an ignition needle mounting column 32 are provided on the base 30, the ignition needle mounting column 32 matches the ignition needle limiting hole 35 and the first positioning hole 27, the thermocouple mounting column 31 matches the thermocouple limiting hole 36 and the second positioning hole 28, the center fire support column 20 is used to support and position the center fire cover, the ignition needle limiting hole 35 and the ignition needle mounting column 32 are used to fix the ignition needle, and the thermocouple limiting hole 36 and the thermocouple mounting are used to fix the thermocouple.

[0043] A second guide plate 23 is provided in the center fire dividing chamber 21. The second guide plate 23 is horizontally or inclinedly arranged in the center fire dividing chamber 21. The horizontal area between the inner side surface of the second guide plate 23 and the inner wall of the center fire dividing chamber 21 is S2. The horizontal area S2 is 1.5 to 3.5 times the area of ​​the inner fire hole on the center fire cover. The inner fire hole area refers to the total area of ​​all the inner fire holes on the center fire cover. The second guide plate 23 facilitates the gas to flow along the circumference of the center fire dividing chamber 21 without turning corners, with small resistance loss and uniform distribution. The flame is ejected powerfully, the effect of inducing secondary air is good, the combustion is more complete, the energy efficiency is high, the firepower is large, the structure is simple and compact, and the overall effect is good. The second guide plate 23 preferably adopts an inclined structure.

[0044] The second gas delivery assembly includes a center fire nozzle seat 3 and a center fire positioning block 14, which are respectively located at the upper and lower sides of the base 30, and a center fire positioning block 14 is provided with a center fire air inlet 12, and a second air supply channel is provided in the center fire nozzle seat 3, and the center fire air inlet 12 is connected with the second air supply channel, and a center fire nozzle 4 is provided at the air outlet end of the center fire nozzle seat 3, and a first through groove 24 is provided on the water tray 2, and the first through groove 24 matches the center fire nozzle seat 3. The top of the center fire nozzle seat 3 is designed to be circular, and dirt is not easy to accumulate, and the circular surface is easy to maintain. The gas is input into the second air supply channel through the center fire air inlet 12, and then the gas is sprayed into the center fire ejection pipe 8 by the center fire nozzle 4, and then input into the center fire separation chamber 21 through the center fire ejection pipe 8, and the first through groove 24 improves the stability and reliability of the installation of the center fire nozzle seat 3.

[0045] A base support column 17 is provided on the base 30, and a through hole is provided in the base support column 17. A countersunk hole 41 is provided at the bottom of the through hole. The design of the above structure can meet the requirements of installation from bottom to top or from top to bottom. The countersunk hole 41 is a conical structure. When installing from top to bottom, the taper can guide the screws for easy installation.

[0046] When the present invention is actually used, the water pan is first fixedly mounted on the base through the connecting support column, and then the base is fixedly mounted on the bottom plate or bracket of the stove through screws, and then the burner is placed on the connecting support column through the burner support point for vertical positioning, and an ignition needle and a thermocouple are installed, and the gas is input into the main fire splitting cavity and the center fire splitting cavity through the first gas transmission assembly and the second gas transmission assembly through the main fire air inlet and the center fire air inlet, and the first main fire ejector tube, the second main fire ejector tube and the center fire ejector tube to realize continuous gas supply. The above structure can not only realize the connection of the water pan and the vertical positioning of the burner, so that the burner does not directly contact the base, the heat transfer is reduced, and the stability of the combustion condition is improved, but also because the number of connecting support columns is small, the burner is easier to maintain.

[0047] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. An easy-to-clean upper air inlet burner, characterized in that: The invention comprises a burner head, a water pan, a base and a connecting support column, wherein the water pan is arranged between the burner head and the base, and the connecting support column passes through the water pan and the base in sequence from top to bottom to realize the fixed connection between the water pan and the base, and a burner head supporting point is arranged on the burner head, and the burner head supporting point is in contact with the connecting support column to realize the connection and positioning between the burner head and the base; a main fire dividing cavity is arranged in the burner head, and the burner head is provided with a main ejector pipe assembly, and the base is provided with a first gas transmission assembly, and the first gas transmission assembly is connected with the main fire dividing cavity through the main ejector pipe assembly to realize continuous gas supply to the main fire dividing cavity, and a first guide plate is arranged in the main fire dividing cavity, and the first guide plate water It is connected horizontally or obliquely to the main fire dividing cavity; the main ejector tube assembly includes a first main fire ejector tube and a second main fire ejector tube, the first main fire ejector tube and the second main fire ejector tube are both connected to the main fire dividing cavity along the tangent direction of the burner head, and the gas outlet direction of the first main fire ejector tube is consistent with that of the second main fire ejector tube; a central fire support column is provided in the burner head, the central fire support column is provided with a central fire dividing cavity, the central fire support column is provided with a central fire ejector tube, and the central fire ejector tube is connected to the central fire dividing cavity along the tangent direction of the central fire support column; a second guide plate is provided in the central fire dividing cavity, and the second guide plate is horizontally or obliquely provided in the central fire dividing cavity.

2. The easy-to-clean upper air inlet burner according to claim 1, characterized in that: The water tray is provided with a first mounting hole, the base is provided with a second mounting hole matching the first mounting hole, and the lower part of the connecting support column passes through the first mounting hole and is connected to the second mounting hole to achieve a fixed connection between the water tray and the base.

3. The easy-to-clean upper air inlet burner according to claim 1, characterized in that: The horizontal area between the inner side surface of the first guide plate and the inner wall of the main fire division cavity is S1, and the area of ​​the horizontal area S1 is 1.5 to 3.5 times the area of ​​the outer fire hole on the outer fire cover.

4. The easy-to-clean upper air inlet burner according to claim 1, characterized in that: The first gas delivery component includes a first main fire nozzle seat, a second main fire nozzle seat, a first main fire positioning block and a second main fire positioning block. The first main fire nozzle seat and the second main fire nozzle seat are arranged on both sides of the top of the base. The gas outlet ends of the first main fire nozzle seat and the second main fire nozzle seat are respectively provided with the first main fire nozzle and the second main fire nozzle. The first main fire nozzle seat and the second main fire nozzle seat are respectively provided with a first gas supply channel. The first main fire positioning block and the second main fire positioning block are arranged on both sides of the bottom of the base. A main fire air inlet hole is provided in the first main fire positioning block, and a gas delivery channel is provided in the second main fire positioning block. The main fire air inlet hole is connected to the first gas supply channel on the first main fire nozzle seat, and the gas delivery channel is connected to the first gas supply channel on the second main fire nozzle seat. The first main fire positioning block is connected to the second main fire positioning block through a shunt pipe, and the main fire air inlet hole is connected to the gas delivery channel through the shunt pipe.

5. The easy-to-clean upper air inlet burner according to claim 4, characterized in that: The water tray is provided with a second through groove and a third through groove, the first main fire nozzle seat matches the second through groove, and the second main fire nozzle seat matches the third through groove.

6. The easy-to-clean upper air inlet burner according to claim 1, characterized in that: A second gas delivery assembly is provided on the base, and the second gas delivery assembly is connected with the center fire ignition chamber through the center fire ejector tube to realize continuous gas supply to the center fire ignition chamber. A center through hole is provided on the center fire support column, and an ignition needle limiting hole and a thermocouple limiting hole are provided between the center fire support column and the burner head. A first positioning hole and a second positioning hole are provided on the water tray, and a thermocouple mounting column and an ignition needle mounting column are provided on the base. The ignition needle mounting column matches the ignition needle limiting hole and the first positioning hole, and the thermocouple mounting column matches the thermocouple limiting hole and the second positioning hole.

7. The easy-to-clean upper air inlet burner according to claim 1, characterized in that: The horizontal area between the inner side surface of the second guide plate and the inner wall of the central fire fire distribution cavity is S2, and the area of ​​the horizontal area S2 is 1.5 to 3.5 times the area of ​​the inner fire hole on the central fire cover.

8. The easy-to-clean upper air inlet burner according to claim 6, characterized in that: The second gas delivery assembly includes a center fire nozzle seat and a center fire positioning block, the center fire nozzle seat and the center fire positioning block are respectively located on the upper and lower sides of the base, the center fire positioning block is provided with a center fire air inlet hole, the center fire nozzle seat is provided with a second air supply channel, the center fire air inlet hole is connected with the second air supply channel, the center fire nozzle seat is provided with a center fire nozzle at the air outlet end, and the water tray is provided with a first through groove, which matches the center fire nozzle seat.

9. An easy-to-clean upper air inlet burner according to claim 1 or 2, characterized in that: A base support column is provided on the base, a through hole is provided in the base support column, and a countersunk hole is provided at the bottom of the through hole.

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