Burners and heating equipment

Abstract

The present invention discloses a burner, comprising a burner body, wherein a secondary supply device is provided at the bottom of the burner body for adjusting the secondary air supply amount; the secondary supply device comprises an air regulating plate and a flow equalizing plate, wherein the air regulating plate and the flow equalizing plate are fixedly connected, and a second fan assembly is provided between the air regulating plate and the flow equalizing plate, and the second fan assembly controls the air intake amount so that air is supplied to the burner body from the air regulating plate and the flow equalizing plate. A heating device is also disclosed. The present invention provides a burner and a heating device, wherein a secondary supply device is provided at the bottom of the burner, and the secondary air supply is controlled by adjusting the air intake amount of the secondary supply device so that the secondary air supply amount is sufficient and more evenly distributed, thereby making the gas burn more fully, improving the combustion efficiency, and reducing the exhaust gas emissions generated after combustion.

Description

Technical Field

[0001] The present invention belongs to the technical field of heating equipment, and in particular relates to a burner and heating equipment. Background Art

[0002] The burners of current heating equipment usually use partial premixed combustion. Partial premixed combustion means that the gas is mixed with some air (i.e. primary air) before combustion, and after combustion, the incompletely burned gas is mixed with air (i.e. secondary air) again for combustion.

[0003] Burners are core components of heating equipment. They typically feature a secondary air damper at the bottom. During operation, secondary air enters the combustion chamber through the damper's air intake holes and participates in combustion. The amount of secondary air supplied directly impacts combustion conditions. Insufficient secondary air supply leads to incomplete combustion, low combustion efficiency, and excessive exhaust emissions. Existing burners have fixed air intakes that don't automatically adjust air supply based on the heat load and combustion conditions, easily leading to insufficient secondary air supply.

[0004] Therefore, it is urgent to design a burner and a heating device to solve the technical problem of insufficient secondary air supply in existing burners and heating devices. Summary of the Invention

[0005] In order to solve the problem of insufficient secondary air supply to the burner and heating equipment mentioned in the background technology, the present invention provides a burner and heating equipment that actively supplies secondary air, improves combustion conditions, increases thermal efficiency, and reduces exhaust emissions.

[0006] To achieve the above objectives, the specific technical solutions of the burner and heating equipment of the present invention are as follows:

[0007] The present invention provides a burner, comprising a burner body, wherein a secondary supply device is provided at the bottom of the burner body for adjusting the secondary air supply amount;

[0008] The secondary supply device includes an air regulating plate and a flow equalizing plate, the air regulating plate and the flow equalizing plate are fixedly connected, and a second fan assembly is arranged between the air regulating plate and the flow equalizing plate, and the second fan assembly controls the air intake volume so that air is supplied to the burner body from the air regulating plate and the flow equalizing plate.

[0009] As a preferred embodiment provided by the present invention, the air regulating plate is provided to protrude in a direction away from the burner body, and an accommodating space is formed on the air regulating plate so that the second fan assembly is fixed in the accommodating space.

[0010] As a preferred embodiment provided by the present invention, the distance between the bottom of the accommodating space and the lower surface of the air regulating plate is set to h1, and the diameter of the accommodating space close to the side of the flow equalizing plate is set to d2, and h1 and d2 satisfy d2=5h1, and the value range of h1 is 10mm to 20mm.

[0011] As a preferred embodiment provided by the present invention, an air inlet hole is provided at the bottom of the accommodating space, and the air flows into the burner body through the air inlet hole.

[0012] As a preferred embodiment provided by the present invention, the air inlet includes a first air inlet and a second air inlet, and an air inlet grid is provided at the bottom of the air regulating plate, which divides the bottom of the air regulating plate into multiple first air inlet holes and multiple second air inlet holes.

[0013] As a preferred embodiment provided by the present invention, the first air inlet holes and the second air inlet holes are evenly distributed, and the plurality of first air inlet holes are arranged along the outer circle of the plurality of second air inlet holes.

[0014] As a preferred embodiment provided by the present invention, the area of the first air inlet hole is larger or smaller than the area of the second air inlet hole.

[0015] As a preferred embodiment provided by the present invention, the width of the first air inlet is set to D1, the gap between the first air inlet and the second air inlet is set to D2, D1 and D2 satisfy D1=2D2, and the value range of D2 is 3mm to 8mm.

[0016] As a preferred embodiment provided by the present invention, a positioning hole is provided at the bottom of the air regulating plate, and the second fan assembly is fixed to the positioning hole by snap connection.

[0017] As a preferred embodiment provided by the present invention, a limiting structure is provided on the positioning hole, and the second fan assembly is fixed to the limiting structure so that the fan assembly is fixed on the air regulating plate.

[0018] As a preferred embodiment provided by the present invention, a plurality of vent holes are arranged at equal intervals on the air regulating plate, the gap between two adjacent vent holes is set to L1, the diameter of the vent hole is set to d1, the relationship between L1 and d1 satisfies L1=1.5d1, and the value range of d1 is 5mm to 8mm.

[0019] As a preferred embodiment provided by the present invention, a first mounting hole is provided on the air regulating plate, and the flow equalizing plate and the first mounting hole are fixedly connected by fasteners.

[0020] As a preferred embodiment provided by the present invention, a plurality of air holes are provided on the flow equalizing plate, and the plurality of air holes are evenly distributed.

[0021] As a preferred embodiment provided by the present invention, the diameter of the air vent is set as the gap between two adjacent air vents is set to L2, the diameter of the air vent is set to d3, the relationship between L2 and d3 satisfies d3=1.5L2, and the value range of d3 is 3mm to 5mm.

[0022] As a preferred embodiment provided by the present invention, the flow balancing plate is configured as a spherical structure.

[0023] As a preferred embodiment provided by the present invention, the distance between the top and bottom surfaces of the flow equalizing plate is set to h2, the spherical radius is set to Ra, Ra and h2 satisfy Ra=10h2, and the value range of h2 is 10mm to 20mm.

[0024] The present invention also provides a heating device, comprising the burner as described above, wherein the heating device is a water heater or a wall-mounted boiler.

[0025] The burner and heating equipment of the present invention have the following advantages:

[0026] The present invention provides a burner and heating equipment. A secondary supply device is provided at the bottom of the burner. By adjusting the air intake of the secondary supply device, the secondary air supply is controlled, so that the secondary air supply amount is sufficient and distributed more evenly, thereby improving the gas combustion efficiency and reducing exhaust gas emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the explosion structure of the burner of the present invention Figure 1 ;

[0028] Figure 2 Schematic diagram of the explosion structure of the burner of the present invention Figure 2 ;

[0029] Figure 3 It is a structural schematic diagram of the secondary replenishment device of the present invention;

[0030] Figure 4 is a top view of the secondary replenishment device of the present invention;

[0031] Figure 5 is a cross-sectional view of the secondary recharging device of the present invention;

[0032] Figure 6 It is a side view of the secondary supply device of the present invention;

[0033] Figure 7 A top view of the air regulating plate of the present invention;

[0034] Figure 8 Schematic diagram of the overall structure of the air regulating plate of the present invention;

[0035] Figure 9 A side view of the air regulating plate of the present invention;

[0036] Figure 10 Schematic diagram of the overall structure of the current equalizing plate of the present invention;

[0037] Figure 11 is a side view of the current equalizing plate of the present invention;

[0038] Figure 12 Schematic diagram of the exploded structure of the second fan assembly of the present invention;

[0039] Figure 13 The overall structure of the heating equipment provided by the present invention is schematically shown Figure 1 ;

[0040] Figure 14 The overall structure of the heating equipment provided by the present invention is schematically shown Figure 2 .

[0041] Description of the marks in the figure:

[0042] 10. Burner; 20. First fan assembly; 30. Air pressure switch; 40. Control panel; 100. Burner body; 110. Fixing hole; 200. Secondary supply device; 210. Air regulating plate; 211. Limiting hole; 212. Ventilation hole; 2131. Air intake grille; 2132. First air intake hole; 2133. Second air intake hole; 2134. Positioning hole; 2135. First mounting limiting hole; 214. First mounting hole; 220. Second screw; 230. Second fan assembly; 231. Fan impeller; 232. Shock absorber; 233. Motor body; 234. Power connection; 2331. Mounting arm; 2332. Second mounting hole; 240. Flow equalizing plate; 2401. Second mounting limiting hole; 2402. Ventilation hole; 250. Third screw; 300. First screw. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0045] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] like Figures 1 to 14 As shown, the burner 10 provided by the present invention includes a burner body 100, and a secondary supply device 200 is provided at the bottom of the burner body 100 for adjusting the secondary air supply amount; the secondary supply device 200 includes an air regulating plate 210 and a flow equalizing plate 240, and the air regulating plate 210 and the flow equalizing plate 240 are fixedly connected, and a second fan assembly 230 is provided between the air regulating plate 210 and the flow equalizing plate 240, and the second fan assembly 230 controls the air intake so that the air is supplied to the burner body 100 by the air regulating plate 210 and the flow equalizing plate 240. The device for adjusting the secondary air supply amount as described above can be applied to heating equipment. When the heating equipment is used under different heat loads, it can control different air intake volumes by controlling the rotational speed of the second fan assembly 230 according to different combustion conditions. The secondary air supply amount of the heating equipment can be adjusted to obtain a more reasonable air distribution ratio, so that the gas burns fully, the combustion quality is improved, and the generation of combustion exhaust gas is reduced, thereby achieving energy conservation and emission reduction effects.

[0047] Furthermore, the bottom of the burner body 100 is provided with a fixing hole 110, and the air regulating plate 210 is provided with a limiting hole 211. The limiting holes 211 and the fixing holes 110 are arranged in a one-to-one correspondence, and the limiting holes 211 and the fixing holes 110 are fixedly connected by fasteners. Of course, it is understood that the number of limiting holes 211 and the fixing holes 110 is the same, and each limiting hole 211 is provided in a corresponding manner with the fixing hole 110. As a preferred embodiment, the limiting holes 211 are provided at the top corners of the air regulating plate 210, and the air regulating plate 210 and the bottom of the burner body 100 are fixedly connected by a first screw 300.

[0048] like Figures 3 to 8 As shown, the air regulating plate 210 is arranged to protrude away from the burner body 100. The air regulating plate 210 is formed with a housing space to secure the second fan assembly 230 within the housing space. The size of the housing space is the same as the size of the fan assembly 230, as long as the second fan assembly 230 can be accommodated within the housing space. Of course, the embodiments provided by the present invention provide a detailed description of the housing space to enable the second fan assembly 230 to accurately control the air intake to supplement the supply of secondary air.

[0049] Furthermore, the distance between the bottom of the accommodating space and the lower surface of the air regulating plate 210 is set to h1, and the diameter of the accommodating space close to the side of the flow equalizing plate 240 is set to d2. The h1 and d2 satisfy d2=5h1, and the value range of h1 is 10mm to 20mm.

[0050] The dimensional values exemplified by the structure and features in the patent of the present invention can be easily manufactured and implemented. The design purpose and effect of its combined structure are that when the heating equipment is working, if the secondary air provided by the first fan assembly 20 of the heating equipment during combustion is insufficient, the second fan assembly 230 will be started to supplement the secondary air to make the combustion more complete; and its combined structure can make the secondary air supply more uniform.

[0051] Furthermore, the bottom of the accommodating space is provided with air inlet holes, through which the air flows into the burner body 100. The air inlet holes include a first air inlet hole 2132 and a second air inlet hole 2133. The bottom of the air regulating plate 210 is provided with an air inlet grille 2131, which divides the bottom of the air regulating plate 210 into at least two first air inlet holes 2132 and at least two second air inlet holes 2133.

[0052] As a preferred embodiment, the first air inlet holes 2132 and the second air inlet holes 2133 are evenly distributed, and a plurality of the first air inlet holes 2132 are arranged along the outer circle of the plurality of the second air inlet holes 2133 .

[0053] Of course, it is understood that the first air inlet 2132 and the second air inlet 2133 can be adjustable in opening and closing. Depending on the amount of secondary air supply, the opening and closing of the first air inlet 2132 and the second air inlet 2133 can be adjusted to meet different secondary air supply requirements. The first air inlet 2132 and the second air inlet 2133 can also be arranged in different positions. Depending on the air supply requirements, it is sufficient that the areas of the first air inlet 2132 and the second air inlet 2133 are different, that is, the area of the first air inlet 2132 is larger or smaller than the area of the second air inlet 2133. For the first air inlet 2132 and the second air inlet 2133 to have different air supply areas, in order to more accurately adjust the air supply amount, different air supply requirements can be met.

[0054] As an example, the first air inlet hole 2132 and the second air inlet hole 2133 described above may be circular holes, rectangular holes, square holes, elliptical holes or holes of other irregular shapes.

[0055] As a preferred embodiment, the width of the first air inlet hole 2132 is set to D1, and the gap between the first air inlet hole 2132 and the second air inlet hole 2133 is set to D2, and D1 and D2 satisfy D1=2D2, and the value range of D2 is 3mm to 8mm.

[0056] Furthermore, a positioning hole 2134 is provided at the bottom of the air regulating plate 210, and the second fan assembly 230 is fixedly connected to the air regulating plate 210 through the positioning hole 2134. In some embodiments, the second fan assembly 230 is fixedly engaged with the air regulating plate 210 through the positioning hole 2134, and in other embodiments, it can also be fixedly connected by fixing bolts.

[0057] like Figure 3 、 Figure 5 and Figure 12 As shown, the second fan assembly 230 includes a fan impeller 231, which is connected to a motor body 233. The motor body 233 is provided with a power connection 234 and a sensor. The power connection 234 is connected to the gas hot water control panel 40. A mounting arm 2331 is provided on the outer wall of the motor body 233. The mounting arm 2331 is provided with a second mounting hole 2332. The second mounting hole 2332 is fixed to the bottom of the air regulating plate 210 by a second screw 220, so that the second fan assembly 230 is fixed to the air regulating plate 210. A shock-absorbing pad 232 is provided on the outer wall of the mounting arm 2331 to effectively reduce vibration of the motor body 233 during operation.

[0058] Furthermore, the motor body 233 is preferably set to a DC brushless motor, a brushed motor or an AC motor, which is equipped with a sensor inside. The control panel 40 of the heating equipment can receive and issue action instructions through the power connection 234 to control the speed and start and stop of the second fan assembly 230, thereby controlling the air intake volume and achieving accurate supply of secondary air.

[0059] The burner 10 provided herein includes a second motor attached to the air damper plate 210. This combined structure is referred to as a secondary supply device 200 in the present invention. The second motor's power supply connection 234 is connected to the heating device's controller 40, which controls the second motor. When the heating device experiences unsatisfactory combustion conditions due to insufficient secondary air supply, the second motor is activated to increase the secondary air supply.

[0060] Furthermore, a limiting structure is provided on the positioning hole 2134, and the second fan assembly 230 is fixed to the limiting structure, so that the second fan assembly 230 is fixed to the air regulating plate 210. Specifically, the limiting structure is a first mounting limiting hole 2135, which is connected to the positioning hole 2134. The first mounting limiting hole 2135 is provided on opposite sides of the positioning hole 2134, so that the fan assembly 230 and the first mounting limiting hole 2135 are fixedly connected. Furthermore, the second mounting hole 2332 on the fan assembly 230 is fixedly connected to the first mounting limiting hole 2135 on the air regulating plate 210 by a second screw 220, thereby achieving the fixation of the second fan assembly 230.

[0061] like Figure 7 As shown, at least two air vents 212 are evenly spaced on the air regulating plate 210. The gap between two adjacent air vents 212 is set to L1, and the diameter of the air vent 212 is set to d1. The relationship between L1 and d1 satisfies L1=1.5d1, and the value range of d1 is 5mm to 8mm. Existing forced exhaust heating equipment is equipped with a fan, a heat exchanger, a burner 10 and a controller. The bottom of the burner 10 is generally provided with an air regulating plate 210, and the air regulating plate 210 is generally provided with evenly distributed circular air inlet holes. When the heating equipment is working, the fan installed on the top runs to provide the air required for combustion. At this time, secondary air enters the combustion chamber through the air inlet holes on the air regulating plate 210 to participate in combustion. The size, shape and number distribution of the air inlet holes on the air regulating plate 210 are designed to ensure sufficient secondary air supply and more even distribution.

[0062] like Figure 5 、 Figure 8 、 Figure 10 and Figure 11As shown, the air regulating plate 210 is provided with a first mounting hole 214, and the flow balancing plate 240 is fixedly connected to the first mounting hole 214 by a fastener. The flow balancing plate 240 is provided with a second mounting limit hole 2401, and the air regulating plate 210 is provided with a first mounting hole 214 at a corresponding position. The flow balancing plate 240 and the air regulating plate 210 are fixedly connected by a third screw 250, thereby fixing the flow balancing plate 240, the second fan assembly 230, and the air regulating plate 210.

[0063] Furthermore, the equalizer plate 240 is provided with at least two air holes 2402, which are evenly distributed. In a preferred embodiment, the equalizer plate 240 has a curved surface with uniformly distributed small holes. After passing through the curved equalizer plate 240, the secondary air provided by the second motor expands in all directions and flows more evenly into the combustion chamber for combustion, thereby further ensuring a more uniform secondary air supply.

[0064] Furthermore, the diameter of the air hole 2402 is set to the gap between two adjacent air holes 212 is set to L2, the diameter of the air hole 212 is set to d3, the relationship between L2 and d3 satisfies d3=1.5L2, the value range of d3 is 3mm to 5mm, and the flow equalizing plate 240 is a spherical structure to make the air distribution more uniform.

[0065] Specifically, the distance between the top surface and the bottom surface of the current equalizing plate 240 is set to h2, the spherical radius is set to Ra, Ra and h2 satisfy Ra=10h2, and the value range of h2 is 10 mm to 20 mm.

[0066] As a preferred embodiment, the flow equalizing plate 240 is preferably made of galvanized plate, and can also be set to be an aluminum plate, stainless steel plate and other materials, and the thickness is preferably 0.5mm to 1.0mm.

[0067] Furthermore, the burner 10 is provided with a secondary supply device 200 at the bottom, and the secondary supply device 200 is provided with the air regulating plate 210 and the second fan assembly 230; when the heating equipment is working, a part of the secondary air enters the combustion chamber through the uniform air vents 212 provided on the air regulating plate 210 to participate in the combustion. At the same time, the second fan assembly 230 can actively replenish the secondary air, improve the combustion conditions, make the gas burn more completely, thereby improving thermal efficiency and reducing exhaust emissions.

[0068] The following describes the working process of the device for adjusting the secondary air supply amount, taking the case where the heating equipment has three heat load states (i.e., maximum heat load state, half heat load state, and low heat load state) as an example:

[0069] Furthermore, when the heating equipment is used under high thermal load conditions and insufficient secondary air supply results in incomplete combustion of the gas, the air intake of the second fan assembly 230 can be adjusted to a high setting to maximize the air intake at the bottom of the heating equipment's burner 10, thereby achieving the maximum secondary air supply, ensuring complete combustion of the gas, improving combustion efficiency, and reducing the generation of combustion exhaust gases. If the heating equipment is operating with insufficient secondary air supply, the gas will not burn fully, resulting in low combustion efficiency and excessive emissions of harmful gases such as CO. If the secondary air supply is unevenly distributed, i.e., if there is a localized lack of secondary air during combustion, this will result in incomplete combustion, similarly failing to achieve ideal combustion conditions.

[0070] Furthermore, when the heating equipment is used in a semi-heat load state, when insufficient secondary air supply leads to incomplete combustion or excessive secondary air causes heat loss, the second fan assembly 230 can be adjusted to a mid-range position to form an appropriate air intake volume at the bottom of the burner 10 of the heating equipment, thereby obtaining a reasonable secondary air supply amount, ensuring full combustion of the gas, improving combustion efficiency, and reducing the generation of combustion exhaust gas.

[0071] Furthermore, when the heating equipment is used under a low heat load state, in the event that some heat is lost due to excessive secondary air, the second fan assembly 230 is adjusted to the minimum gear to form a minimum air intake at the bottom of the burner 10 of the heating equipment, thereby obtaining a reasonable secondary air supply amount, ensuring full combustion of the gas, improving combustion efficiency, and reducing the generation of combustion exhaust gas.

[0072] like Figure 13 and 14 Another embodiment of the present invention further provides a heating device, which includes a burner 10 and the above-mentioned device for adjusting the secondary air supply amount.

[0073] Specifically, the heating equipment provided by the present invention also includes a wind pressure switch 30, a control panel 40 and a first fan assembly 20. The heating equipment is installed with the burner 10, and a secondary supply device 200 is provided at the bottom thereof. The secondary supply device 200 is provided with the air regulating plate 210 and the second fan assembly 230. When the heating equipment is working, a part of the secondary air enters the combustion chamber through the uniform air inlet holes provided on the air regulating plate 210 to participate in combustion. At the same time, the second fan assembly 230 can actively replenish the secondary air, improve the combustion conditions, and make the gas burn more fully, thereby improving thermal efficiency and reducing exhaust emissions.

[0074] The heating equipment as described above, when used under different heat loads, can adjust the air intake of the second fan assembly 230 according to different combustion conditions, and then adjust the secondary air supply amount of the heating equipment, so as to obtain a reasonable air distribution ratio, ensure full combustion of the gas, improve combustion quality, reduce the generation of combustion exhaust gas, and thus achieve energy conservation and emission reduction effects.

[0075] The present invention provides a burner 10 and heating equipment. A secondary air supply device is provided at the bottom of the burner 10. By adjusting the air intake of the secondary air supply device, the secondary air supply is controlled, ensuring sufficient and evenly distributed secondary air supply, thereby improving gas combustion efficiency and reducing exhaust emissions. In a preferred embodiment of the present invention, the heating equipment is a water heater or a wall-mounted boiler.

[0076] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A burner, characterized in that: The burner comprises a burner body, wherein a secondary supply device is provided at the bottom of the burner body for adjusting the secondary air supply amount; The secondary supply device includes an air regulating plate and a flow equalizing plate, the air regulating plate and the flow equalizing plate are fixedly connected, a second fan assembly is provided between the air regulating plate and the flow equalizing plate, and the second fan assembly controls the air intake so that air is supplied to the burner body from the air regulating plate and the flow equalizing plate; The air regulating plate is protruding in a direction away from the burner body, and an accommodating space is formed on the air regulating plate so that the second fan assembly is fixed in the accommodating space; The distance between the bottom of the accommodating space and the lower surface of the air regulating plate is set to h1, and the diameter of the accommodating space close to the side of the flow equalizing plate is set to d2. The h1 and d2 satisfy d2=5h1, and the value range of h1 is 10mm to 20mm.

2. The burner according to claim 1, characterized in that An air inlet hole is provided at the bottom of the accommodating space, and the air flows into the burner body through the air inlet hole.

3. The burner according to claim 2, characterized in that The air inlet holes include a first air inlet hole and a second air inlet hole. An air inlet grid is provided at the bottom of the air regulating plate. The air inlet grid divides the bottom of the air regulating plate into a plurality of the first air inlet holes and a plurality of the second air inlet holes.

4. The burner according to claim 3, characterized in that The first air inlet holes and the second air inlet holes are evenly distributed, and a plurality of the first air inlet holes are arranged along an outer circle of a plurality of the second air inlet holes.

5. The burner according to claim 3, characterized in that The area of the first air inlet hole is larger or smaller than the area of the second air inlet hole.

6. The burner according to claim 3, characterized in that The width of the first air inlet hole is set to D1, and the gap between the first air inlet hole and the second air inlet hole is set to D2. D1 and D2 satisfy D1=2D2, and the value range of D2 is 3mm to 8mm.

7. The burner according to claim 6, characterized in that A positioning hole is provided at the bottom of the air regulating plate, and the fan assembly is fixedly connected to the positioning hole.

8. The burner according to claim 7, characterized in that A limiting structure is provided on the positioning hole, and the second fan assembly is fixed to the limiting structure so that the second fan assembly is fixed on the air regulating plate.

9. The burner according to claim 1, characterized in that A plurality of vent holes are arranged at equal intervals on the air regulating plate, the gap between two adjacent vent holes is set to L1, the diameter of the vent hole is set to d1, the relationship between L1 and d1 satisfies L1=1.5d1, and the value range of d1 is 5mm to 8mm.

10. The burner according to claim 1, characterized in that The air regulating plate is provided with a first mounting hole, and the flow equalizing plate and the first mounting hole are fixedly connected by fasteners.

11. The burner according to claim 1, characterized in that The flow balancing plate is provided with a plurality of air holes, and the plurality of air holes are evenly distributed.

12. The burner according to claim 11, characterized in that The diameter of the ventilation holes is set as the gap between two adjacent ventilation holes is set as L2, the diameter of the ventilation holes is set as d3, the relationship between L2 and d3 satisfies d3=1.5L2, and the value range of d3 is 3mm to 5mm.

13. The burner according to claim 1, 11 or 12, characterized in that: The flow balancing plate is configured as a spherical structure.

14. The burner according to claim 13, characterized in that The distance between the top surface and the bottom surface of the current equalizing plate is set to h2, and the spherical radius is set to Ra. Ra and h2 satisfy Ra=10h2, and the value range of h2 is 10mm to 20mm.

15. A heating device, characterized in that: It comprises the burner according to any one of claims 1 to 14, and the heating equipment is a water heater or a wall-mounted boiler.

Images