A high-power range hood burner

Abstract

A high-power stove burner with top air intake includes a burner head, nozzle seat, burner distributor seat, central burner cap, inner ring burner cap, and outer ring burner cap. The central burner cap seat passes through a through hole and has a positioning axial protrusion that fits into a positioning groove. The inner ring air outlet and outer ring air outlet are respectively connected to and sealed with the inner ring air inlet and outer ring air inlet. The inner ring air outlet, outer ring air outlet, and front-opening frame-shaped air guide support the burner distributor seat. An arc-shaped cover plate covers the front opening of the top air intake chamber and is detachably fitted with the burner head. The central nozzle seat, inner ring nozzle seat, and outer ring nozzle seat extend into the top air intake chamber and are respectively opposite to the central ejector tube, inner ring ejector tube, and outer ring ejector tube. The outer ring premixing chamber and inner ring premixing chamber have large central angles, resulting in uniform mixing of gas and air. With the outer ring premixing chamber having a large central angle and two outer ring air outlets, the gas distribution in the outer ring gas groove is uniform, improving energy efficiency.

Description

Technical Field

[0001] This invention relates to a stove burner. Background Technology

[0002] The existing technology, Chinese patent 201610866695.0, describes a high-power burner with a top-intake three-ring flame, including a burner head, a burner holder, a central flame cap, an inner ring flame cap, and an outer ring flame cap. The burner head includes an air-fuel premixing chamber with an upper opening at the front, a central air outlet pipe, an inner ring mixing chamber and an inner ring air outlet on the right side, and an outer ring mixing chamber and an outer ring air outlet on the left side. The central air outlet pipe, the inner ring mixing chamber, and the outer ring mixing chamber are connected to the air-fuel premixing chamber through a central ejector pipe, an inner ejector pipe, and an outer ejector pipe, respectively. Due to this structure, the upper opening of the burner head's air-fuel premixing chamber is located above the cooktop panel, allowing for top-intake of primary air. The annular support platform on the outer circumference of the burner head supports the base plate of the metal panel or drip tray. Secondary air enters through the gap between the burner holder and the cooktop panel. The air and fuel are pressurized and premixed within the burner head, enabling rapid entry into the burner holder. The problems are: the central angles of the inner ring mixing chamber and the outer ring premixing chamber are small, resulting in uneven mixing of gas and air; there is only one gas outlet in the outer ring, resulting in uneven gas distribution in the outer ring gas tank and low energy efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a high-power stove burner with top air intake, which features uniform and complete combustion of gas and air, uniform gas distribution in the outer ring gas groove, and high energy efficiency.

[0004] This invention is achieved as follows: a high-power stove burner with top air intake, characterized in that it includes a burner head, a nozzle seat, a flame distributor seat, a center burner cap, an inner ring burner cap, and an outer ring burner cap. The burner head includes a central burner seat, a central ejector tube, an inner ring gas outlet, an inner ring premixing chamber, an inner ring ejector tube, two external gas outlets, an arc-shaped outer ring premixing chamber, an outer ring ejector tube, and an upper air inlet chamber with an upper opening and a front opening. The central burner seat is provided with at least one positioning axial protrusion, and the upper air inlet chamber is provided with a front-opening frame-shaped air guide. The nozzle seat includes an arc-shaped cover plate, a central nozzle seat and a central air intake port, an inner ring nozzle seat and an inner ring air intake port, and an outer ring nozzle seat and an outer ring air intake port. The burner housing includes an open central cavity, an inner ring gas groove and an inner ring air inlet, an inner ring axial secondary air passage, an outer ring gas groove and two outer ring air inlets communicating with the outer ring gas groove; the bottom plate of the central cavity is provided with a through hole with a positioning groove and a central axial secondary air hole surrounding the through hole. The central burner seat passes through the through hole and its axial positioning protrusion fits into the positioning groove. The inner ring air outlet and the outer ring air outlet are respectively connected to and sealed with the inner ring air inlet and the outer ring air inlet. The inner ring air outlet, the outer ring air outlet, and the front open frame-shaped air guide support the burner seat. The arc-shaped cover plate covers the front opening of the upper air inlet chamber and is detachably fitted with the burner head. The central nozzle seat, the inner ring nozzle seat, and the outer ring nozzle seat extend into the upper air inlet chamber and are respectively opposite to the central ejector tube, the inner ring ejector tube, and the outer ring ejector tube.

[0005] The aforementioned high-power stove burner with top air intake is characterized in that: the inner ring gas outlet and the outer gas outlet are respectively arc-shaped and distributed on concentric circles of different diameters.

[0006] The aforementioned high-power stove burner with top air intake is characterized in that a dustproof air intake mesh is provided in the upper part of the top air intake chamber.

[0007] The aforementioned high-power stove burner with top air intake is characterized by having three positioning axial protrusions and three positioning grooves.

[0008] The aforementioned high-power stove burner with top air intake is characterized by the following features: an inner interface is provided at the lower end of the central burner cap, an axial insertion block is provided on the inner wall plate of the inner interface, and an ignition discharge plate is provided at the top of the central burner cap. The upper end of the central fire cover seat is provided with an outer interface, and the outer interface is provided with an axial insertion groove. The outer interface is inserted into the inner interface, and the axial insertion block is inserted into the axial insertion groove.

[0009] The characteristic of the high-power stove burner with top air intake is that: the inner ring gas groove and the outer ring gas groove are respectively provided with an inner positioning groove and an outer positioning groove on the inner surface of the outer ring wall plate. The inner positioning rod of the inner ring flame cap and the positioning rod of the outer ring flame cap are respectively engaged with the inner positioning groove and the outer positioning groove.

[0010] The special feature of the aforementioned high-power stove burner with top air intake is that the central angle of the arc-shaped outer ring premixing chamber is at least 160 degrees.

[0011] The characteristic of the above-air-intake high-power stove burner is that: the bottom plate of the upper air intake chamber is provided with a bottom air intake hole, and the lower opening end of the bottom air intake hole is provided with a countersunk hole; It also includes a cover plate, which fits into the countersunk hole and is secured with screws; When the cover is in the fitted state, it is the upper air intake state; when the cover is separated from the upper air intake cavity, it is the mixed air intake state of upper and lower air intake. The upper air intake state and the mixed air intake state are switched.

[0012] The aforementioned high-power stove burner with top air intake is characterized in that: the burner head includes an upper burner head and a lower burner head. The upper furnace head includes the central fire cover seat, the upper central ejector tube, the inner ring gas outlet, the upper inner ring premixing chamber, the upper inner ring ejector tube, the outer gas outlet, the upper outer ring premixing chamber, the upper outer ring ejector tube, and the upper upper air inlet chamber. The lower furnace head includes a lower central ejector tube, a lower inner ring premixing chamber, a lower inner ring ejector tube, a lower outer ring premixing chamber, a lower outer ring ejector tube, and a lower upper air inlet chamber. The lower upper air inlet chamber has an upper opening, the bottom air inlet hole, and a front opening. The upper furnace head and the lower furnace head are fastened together and fixed. The upper half of the central ejector tube and the lower half of the central ejector tube constitute the central ejector tube. The upper half of the inner ring premixing cavity and the upper half of the inner ring ejector tube are fastened together with the lower half of the inner ring premixing cavity and the lower half of the inner ring ejector tube to form the inner ring premixing cavity and the inner ring ejector tube, respectively. The upper half of the outer ring premixing cavity and the upper half of the outer ring ejector tube are fastened together with the lower half of the outer ring premixing cavity and the lower half of the outer ring ejector tube to form the outer ring premixing cavity and the outer ring ejector tube, respectively. The upper half of the upper air inlet cavity and the lower half of the upper air inlet cavity constitute the upper air inlet cavity.

[0013] This invention discloses a high-power stove burner with top air intake. The outer and inner ring premixing chambers have large central angles, resulting in uniform mixing of gas and air. With the outer ring premixing chamber having a large central angle and two outer ring gas outlets, the gas distribution in the outer ring gas slot is uniform, improving energy efficiency. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention.

[0015] Figure 2 yes Figure 1 A-A view.

[0016] Figure 3 yes Figure 1 The B1-B1 view.

[0017] Figure 4 yes Figure 1 The B2-B2 view.

[0018] Figure 5 This is one of the exploded perspective views of the present invention.

[0019] Figure 6 This is the second exploded perspective view of the present invention.

[0020] Figure 7 This is a top view of the fire distributor base of the present invention.

[0021] Figure 8 This is a bottom view of the fire distributor base of the present invention.

[0022] Figure 9 This is one of the exploded perspective views of the burner head of this invention.

[0023] Figure 10 This is the second exploded perspective view of the burner head of the present invention.

[0024] Figure 11 This is the third exploded perspective view of the burner head of the present invention. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figure 1 As shown, a high-power stove burner with top air intake includes a burner head 1, a nozzle seat 6, a burner distributor seat 2, a center burner cap 3, an inner ring burner cap 4, and an outer ring burner cap 5. like Figure 1 , Figure 2 , Figure 4 As shown, the burner head 1 includes a central burner seat 111, a central ejector tube 112, an inner ring gas outlet 121, an inner ring premixing chamber 122 located at the rear, an inner ring ejector tube 123, two outgoing gas outlets 131, an arc-shaped outer ring premixing chamber 132 located at the rear, an outer ring ejector tube 133, and an upper air inlet chamber 14 with an upper opening and a front opening. The central burner seat 111 is provided with three axial positioning protrusions 1111, and the upper air inlet chamber 14 is provided with a front-opening frame-shaped air guide 141. The outgoing gas outlets 131 are respectively connected to the two ends of the arc-shaped outer ring premixing chamber 132. The nozzle seat 6 includes an arc-shaped cover plate 61, a central nozzle seat 621 and a central air inlet 622, an inner ring nozzle seat 631 and an inner ring air inlet 632, and an outer ring nozzle seat 641 and an outer ring air inlet 642; the central air inlet 622, the inner ring air inlet 632 and the outer ring air inlet 642 are respectively connected to the gas regulating valve of the stove, and the gas regulating valve of the stove can independently control the air intake of the central air inlet 622, the inner ring air inlet 632 and the outer ring air inlet 642; Flame distributor seat 2 includes an open central cavity 21, an inner ring gas groove 22 and an inner ring air inlet 23, an inner ring axial secondary air passage 24, an outer ring gas groove 25 and two outer ring air inlets 26 communicating with the outer ring gas groove 25; the bottom plate of the central cavity 21 is provided with a through hole 211 with a positioning groove (unmarked) and a central axial secondary air hole 212 surrounding the through hole 211; The central burner cap seat 111 passes through the through hole 211 and the positioning axial protrusion 1111 fits into the positioning groove. The inner ring air outlet 121 and the outer ring air outlet 131 are respectively connected to and sealed with the inner ring air inlet 23 and the outer ring air inlet 26. The inner ring air outlet 121, the outer ring air outlet 131 and the front open frame-shaped air guide 141 support the burner seat 2. There is a gap between the burner seat 2 and the burner head 1 for air to enter. The arc-shaped cover plate 61 covers the front opening of the upper air inlet cavity 14 and is detachably engaged with the burner head 1. The central nozzle seat 621, the inner ring nozzle seat 631 and the outer ring nozzle seat 641 extend into the upper air inlet cavity 14 and are opposite to the central ejector tube 112, the inner ring ejector tube 123 and the outer ring ejector tube 133. The central burner cap 3 is fastened to the central burner cap seat 111, and the inner ring burner cap 4 and the outer ring burner cap 5 are fastened to the inner ring gas groove 22 and the outer ring gas groove 25, respectively.

[0028] Alternatively, the lower ends of the inner ring air inlet 23 and the outer ring air inlet 26 are provided with countersunk holes, and the outer air outlet 131 is inserted into the countersunk holes of the inner ring air inlet 23 and the outer ring air inlet 26 respectively, which not only improves the sealing performance, but also increases the stability of the fire distributor seat 2.

[0029] Liquefied gas and natural gas use different nozzles. Nozzle seat 6 is detachable, making it easy to disassemble, install, or replace the nozzle.

[0030] This structure prevents the burner seat 2 from rotating relative to the burner head 1. The two exhaust gas inlets 131 and the upper air inlet chamber 14 are arranged in a triangle and support the burner seat 2. The burner seat 2 is stable and does not tilt.

[0031] As a further improvement of the present invention: the inner ring air outlet 121 and the outer air outlet 131 are respectively arc-shaped and distributed on concentric circles of different diameters.

[0032] As a further improvement of the present invention: the upper air inlet cavity 14 is provided with an upper recessed hole, and a dustproof air inlet mesh 142 is provided in the upper recessed hole and is detachable.

[0033] The locating axial protrusion 1111 and the locating groove are each provided in three parts.

[0034] As a further improvement of the present invention: the lower end of the central flame cap 3 is provided with an inner interface 31, the inner wall plate of the inner interface 31 is provided with an axial insertion block 32, and the top of the central flame cap 3 is provided with an ignition discharge plate 33. The upper end of the central fire cover seat 111 is provided with an outer interface 1112, and the outer interface 1112 is provided with an axial insertion groove 1113. The outer interface 1112 is inserted into the inner interface 31, and the axial insertion block 32 is inserted into the axial insertion groove 1113.

[0035] With this design, during assembly, the ignition discharge plate 33 and the ignition needle are ensured to be aligned. During use, the center burner cap 3 is prevented from rotating, ensuring that the ignition discharge plate 33 and the ignition needle are aligned.

[0036] The inner ring wall plates of the inner ring gas tank 22 and the outer ring gas tank 25 are respectively provided with an inner positioning groove 221 and an outer positioning groove 251. The inner positioning rod 41 of the inner ring flame cap 4 and the positioning rod 51 of the outer ring flame cap 5 are respectively engaged with the inner positioning groove 221 and the outer positioning groove 251.

[0037] As a further improvement to the present invention: such as Figure 2 As shown, the central angle α of the arc-shaped outer ring premixing chamber 132 is at least 160 degrees. Correspondingly, the central angles between the two exhaust ports 131 and between the two outer ring inlet ports 26 are also relatively large. After the gas enters the outer ring gas groove through the outer ring inlet port 26, it is quickly distributed within the outer ring gas groove without turbulence. This design ensures uniform gas distribution and complete combustion in the outer ring gas groove.

[0038] The bottom plate of the upper air inlet chamber 14 is provided with a bottom air inlet hole 143, and the lower opening end of the bottom air inlet hole 143 is provided with a countersunk hole. It also includes a cover plate 144, which fits into the countersunk hole, and screws pass through the connecting holes on the cover plate 144 and are screwed into the bottom plate of the countersunk hole; When the cover plate 144 is engaged with the countersunk hole, it is in the upward air intake state; The cover plate 144 is separated from the upper air inlet chamber 14, resulting in a mixed air intake state of upper and lower air intake; When the cover plate 144 is fastened to the upper opening of the upper air inlet chamber 14, it is in the lower air inlet state, that is, the air is drawn from the bottom shell of the stove; the cover plate 144 and the dustproof air inlet mesh 142 have the same shape. The cover can be removed and installed to switch between top air intake, mixed air intake, and bottom air intake modes; it is fixed with screws, so consumers can switch between modes themselves without the need for professional maintenance personnel.

[0039] like Figure 1 , Figure 9 , Figure 10 As shown, the furnace head 1 includes an upper furnace head 1A and a lower furnace head 1B. The upper furnace head 1A includes the central fire cover seat 111, the upper central ejector tube 1121, the inner ring gas outlet 121, the upper inner ring premixing chamber 1221, the upper inner ring ejector tube 1231, the outer gas outlet 131, the upper outer ring premixing chamber 1321, the upper outer ring ejector tube 1331, and the upper upper air inlet chamber 1451; The lower furnace head 1B includes a lower central ejector tube 1122, a lower inner ring premixing chamber 1222, a lower inner ring ejector tube 1232, a lower outer ring premixing chamber 1322, a lower outer ring ejector tube 1332, and a lower upper air inlet chamber 1452. The lower upper air inlet chamber 152 has an upper opening, a bottom air inlet hole, and a front opening. The upper furnace head 1A and the lower furnace head 1B are fastened together and fixed. The upper half central ejector tube 1121 and the lower half central ejector tube 1122 constitute the central ejector tube 112. The upper half inner ring premixing cavity 1221 and the upper half inner ring ejector tube 1231 are fastened together with the lower half inner ring premixing cavity 1222 and the lower half inner ring ejector tube 1232 to form the inner ring premixing cavity 122 and the inner ring ejector tube 123, respectively. The upper half outer ring premixing cavity 1321 and the upper half outer ring ejector tube 1331 are fastened together with the lower half outer ring premixing cavity 1322 and the lower half outer ring ejector tube 1332 to form the outer ring premixing cavity 132 and the outer ring ejector tube 133, respectively. The upper half upper air inlet cavity 1451 and the lower half upper air inlet cavity 1452 constitute the upper air inlet cavity 14.

[0040] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high-power stove burner with top air intake, characterized in that: This includes the burner head, nozzle seat, flame distributor seat, center burner cap, inner ring burner cap, and outer ring burner cap. The burner head includes a central burner seat, a central ejector tube, an inner ring gas outlet, an inner ring premixing chamber, an inner ring ejector tube, two external gas outlets, an arc-shaped outer ring premixing chamber, an outer ring ejector tube, and an upper air inlet chamber with an upper opening and a front opening. The central burner seat is provided with at least one positioning axial protrusion, and the upper air inlet chamber is provided with a front-opening frame-shaped air guide. The nozzle seat includes an arc-shaped cover plate, a central nozzle seat and a central air intake port, an inner ring nozzle seat and an inner ring air intake port, and an outer ring nozzle seat and an outer ring air intake port. The burner housing includes an open central cavity, an inner ring gas groove and an inner ring air inlet, an inner ring axial secondary air passage, an outer ring gas groove and two outer ring air inlets communicating with the outer ring gas groove; the bottom plate of the central cavity is provided with a through hole with a positioning groove and a central axial secondary air hole surrounding the through hole. The central burner seat passes through the through hole and the positioning axial protrusion fits into the positioning groove. The inner ring gas outlet and the outer ring gas outlet are respectively connected to and sealed with the inner ring gas inlet and the outer ring gas inlet. The inner ring gas outlet, the outer ring gas outlet and the front open frame-shaped air guide support the burner seat. The arc-shaped cover plate covers the front opening of the upper air inlet cavity and is detachably matched with the burner head. The central nozzle seat, the inner ring nozzle seat and the outer ring nozzle seat extend into the upper air inlet cavity and are respectively opposite to the central ejector tube, the inner ring ejector tube and the outer ring ejector tube.

2. The high-power stove burner with top air intake according to claim 1, characterized in that: The inner ring air outlet and the outer air outlet are respectively arc-shaped and distributed on concentric circles of different diameters.

3. The high-power stove burner with top air intake according to claim 1, characterized in that: The upper part of the upper air inlet cavity is equipped with a dustproof air inlet mesh.

4. The high-power stove burner with top air intake according to claim 1, characterized in that: The locating axial protrusion and locating groove are each provided in three parts.

5. The high-power stove burner with top air intake according to claim 1, characterized in that: The lower end of the central flame cap is provided with an inner interface, the inner wall plate of the inner interface is provided with an axial insertion block, and the top of the central flame cap is provided with an ignition discharge plate. The upper end of the central fire cover seat is provided with an outer interface, and the outer interface is provided with an axial insertion groove. The outer interface is inserted into the inner interface, and the axial insertion block is inserted into the axial insertion groove.

6. The high-power stove burner with top air intake according to claim 5, characterized in that: The inner and outer ring walls of the inner and outer ring gas tanks are respectively provided with an inner positioning groove and an outer positioning groove. The inner positioning rod of the inner ring flame cap and the positioning rod of the outer ring flame cap are respectively engaged with the inner positioning groove and the outer positioning groove.

7. The high-power stove burner with top air intake according to claim 1, characterized in that: The central angle of the arc-shaped outer ring premixing cavity is at least 160 degrees.

8. The high-power stove burner with top air intake according to claim 1, characterized in that: The bottom plate of the upper air inlet chamber is provided with a bottom air inlet hole, and the lower opening end of the bottom air inlet hole is provided with a countersunk hole; It also includes a cover plate, which fits into the countersunk hole and is secured with screws; When the cover plate is engaged with the countersunk hole, it is in the upper air intake state; when the cover plate is separated from the upper air intake chamber, it is in the mixed air intake state of upper and lower air intake. The upper air intake state and the mixed air intake state are switched.

9. A high-power stove burner with top air intake according to claim 8, characterized in that: The furnace head includes an upper furnace head and a lower furnace head. The upper furnace head includes the central fire cover seat, the upper central ejector tube, the inner ring gas outlet, the upper inner ring premixing chamber, the upper inner ring ejector tube, the outer gas outlet, the upper outer ring premixing chamber, the upper outer ring ejector tube, and the upper upper air inlet chamber. The lower furnace head includes a lower central ejector tube, a lower inner ring premixing chamber, a lower inner ring ejector tube, a lower outer ring premixing chamber, a lower outer ring ejector tube, and a lower upper air inlet chamber. The lower upper air inlet chamber has an upper opening, the bottom air inlet hole, and a front opening. The upper furnace head and the lower furnace head are fastened together and fixed. The upper half of the central ejector tube and the lower half of the central ejector tube constitute the central ejector tube. The upper half of the inner ring premixing cavity and the upper half of the inner ring ejector tube are fastened together with the lower half of the inner ring premixing cavity and the lower half of the inner ring ejector tube to form the inner ring premixing cavity and the inner ring ejector tube, respectively. The upper half of the outer ring premixing cavity and the upper half of the outer ring ejector tube are fastened together with the lower half of the outer ring premixing cavity and the lower half of the outer ring ejector tube to form the outer ring premixing cavity and the outer ring ejector tube, respectively. The upper half of the upper air inlet cavity and the lower half of the upper air inlet cavity constitute the upper air inlet cavity.

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