Cylindrical full-premixing segmented burner

Abstract

The invention discloses a cylindrical full-premixing segmented burner, which relates to the technical field of burners, and comprises a partition plate adjusting mechanism arranged at the inlet of the burner; the partition plate adjusting mechanism comprises a fixing ring, a plurality of sets of partition plates arranged on the fixing ring in a sliding mode and a rotating ring connected with the multiple partition plates. The partition plate adjusting mechanism adjusts the area of a gas inlet channel of the combustor through movement of the partition plates. The air baffle mechanism comprises a first air baffle assembly arranged in the first flow dividing barrel and a second air baffle assembly arranged in the second flow dividing barrel, and the air baffle mechanism adjusts the opening and closing angle of a baffle under blowing of the mixed fuel gas; the flow guide mechanism comprises a first flow guide assembly arranged in the first flow dividing barrel and a second flow guide assembly arranged in the second flow dividing barrel, and the flow guide mechanism adjusts the rotating angle of the flow guide plate unit according to the flow speed of the mixed gas; according to the invention, quick response to load change is realized, the system structure is simplified, and the gas inlet adjusting speed and the combustor stability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of burners, and particularly to a cylindrical fully premixed segmented burner. Background Art

[0002] A burner device is a device for burning a gas-air mixture. According to different combustion forms, it can be divided into a fully premixed burner and an atmospheric burner. Among them, the fully premixed burner has a cylindrical shape, a plate shape, a fiber mesh shape, etc.

[0003] The patent document with the patent publication number CN114353065B discloses a cylindrical atmospheric burner and a gas water heater. The cylindrical atmospheric burner includes a base, a first body, a first shunt cylinder, a second body, and an injector. The base is provided with a first mixing chamber and a second mixing chamber at intervals. The first body is installed on the base, and the second body is stacked on the first body. Since the mixed gases respectively introduced into the first mixing chamber and the second mixing chamber will finally flow out from different height positions, effectively meeting the needs of users for different load combustion and realizing the segmented combustion of the burner. The cylindrical atmospheric burner cleverly changes the flow direction of the mixed gas flow through the built-in first shunt cylinder, realizing cylindrical stratified combustion and overcoming the problem of excessive temperature rise of the whole water heater at low load. The cylindrical atmospheric burner is provided with multiple mixing chambers and shunt chambers inside, ensuring that the gas and air are fully mixed before flowing out, making the flame combustion more stable and conducive to improving the user experience of the whole water heater.

[0004] However, the applicant found during actual use that the traditional burner air intake adjustment system usually relies on an external electric control system, and the adjustment response is slow, unable to quickly adapt to load changes. Moreover, at different loads, the air flow distribution and the shape of the combustion zone inside the burner are uneven, resulting in low combustion efficiency and poor flame stability. Summary of the Invention

[0005] To solve the defects existing in the prior art, the present invention provides a cylindrical fully premixed segmented burner.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] The present invention provides a cylindrical fully premixed segmented burner, including a first body and a second body. The second body is sleeved on the first body. A first shunt cylinder is arranged inside the first body, and a second shunt cylinder is arranged inside the second body. The burner further includes:

[0008] A partition adjustment mechanism, arranged at the burner inlet;

[0009] The baffle adjusting mechanism includes a fixed ring, a number of baffle plates slidably arranged on the fixed ring, and a rotating ring connected to the plurality of baffle plates. The baffle adjusting mechanism adjusts the area of the air intake passage of the burner by moving the baffle plates;

[0010] The wind baffle mechanism includes a first wind baffle component arranged inside the first flow dividing cylinder and a second wind baffle component arranged inside the second flow dividing cylinder. The wind baffle mechanism adjusts the opening and closing angle of the baffle under the blowing of the mixed gas;

[0011] The flow guiding mechanism includes a first flow guiding component arranged inside the first flow dividing cylinder and a second flow guiding component arranged inside the second flow dividing cylinder. The flow guiding mechanism adjusts the rotation angle of the flow guiding plate unit according to the flow rate of the mixed gas.

[0012] As a preferred technical solution of the present invention, a sliding block is arranged at one end of the baffle plate facing the rotating ring, and a sliding groove is opened at the position of the rotating ring corresponding to the sliding block;

[0013] A moving rod is arranged at one end of the baffle plate facing the fixed plate, and a moving groove is opened at the position of the fixed plate corresponding to the moving rod.

[0014] As a preferred technical solution of the present invention, the lower end surface of the first flow dividing cylinder is fixedly connected to the fixed plate, and the lower end surface of the second flow dividing cylinder abuts against the baffle plate.

[0015] As a preferred technical solution of the present invention, the first wind baffle component includes a number of baffle plates arranged in a circular array along the inner wall of the first flow dividing cylinder and a return spring connected to the baffle plates.

[0016] As a preferred technical solution of the present invention, the second wind baffle component has the same structure as the first wind baffle component.

[0017] As a preferred technical solution of the present invention, the first flow guiding component includes a number of rotating shafts arranged in a circular array along the inner wall of the first flow dividing cylinder and a flow guiding plate unit rotatably connected to the rotating shafts.

[0018] As a preferred technical solution of the present invention, the flow guiding plate unit includes a lower plate, an upper plate integrally formed, and an intermediate plate connecting the lower plate and the upper plate. A number of through grooves are opened on the intermediate plate.

[0019] As a preferred technical solution of the present invention, the area of the lower plate is larger than the area of the upper plate.

[0020] As a preferred technical solution of the present invention, a return torsion spring is arranged between the rotating shaft and the flow guiding plate unit.

[0021] As a preferred technical solution of the present invention, the first wind shield assembly is arranged at the lower end of the first flow guiding assembly, and the partition adjusting mechanism is arranged at the lower end of the first wind shield assembly.

[0022] The beneficial effects of the present invention are as follows:

[0023] In the present invention, through the mutual cooperation of the partition adjusting mechanism, the wind shield mechanism and the flow guiding mechanism, passive intelligent adjustment is achieved. The partition adjusting mechanism mechanically changes the area of the air intake passage of the burner. Without an electric control system, rapid response to load changes is realized, the system structure is simplified, the air intake adjustment speed and the stability of the burner are improved. The wind shield mechanism automatically adjusts the opening and closing angle under the action of the gas flow, without external control, adapts to the change of the air flow intensity, ensures the uniformity of the air flow distribution inside the burner under different loads, and improves the combustion efficiency and flame stability. The flow guiding mechanism automatically rotates and adjusts the angle of the flow guiding plate according to the air flow speed, optimizes the air flow direction and speed distribution. Even if the air flow fluctuates, the air flow can be kept evenly and stably mixed, effectively suppressing the phenomenon of combustion instability. Description of the Drawings

[0024] The drawings are used to provide further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention.

[0025] In the drawings:

[0026] Figure 1 is a schematic diagram of the overall structure of a cylindrical fully premixed segmented burner shown according to an exemplary embodiment.

[0027] Figure 2 is a schematic cross-sectional structure diagram of a cylindrical fully premixed segmented burner shown according to an exemplary embodiment.

[0028] Figure 3 is Figure 2 a partial enlarged schematic diagram at A in

[0029] Figure 4 is a schematic diagram of the structure of a partition adjusting mechanism shown according to an exemplary embodiment.

[0030] Figure 5 is another schematic diagram of the structure of a partition adjusting mechanism shown according to an exemplary embodiment.

[0031] Figure 6 is a schematic partial cross-sectional structure diagram of a cylindrical fully premixed segmented burner shown according to an exemplary embodiment.

[0032] Figure 7 is Figure 6 a partial enlarged schematic diagram at B in

[0033] Figure 8 It is a schematic diagram of one structure of a wind deflector mechanism in operation according to an exemplary embodiment.

[0034] Figure 9 It is a schematic structural diagram of a flow guide mechanism of a cylindrical fully premixed staged burner according to an exemplary embodiment.

[0035] Figure 10 It is a schematic diagram of the structure of a guide plate unit according to an exemplary embodiment.

[0036] Figure 11 It is a schematic structural diagram showing a guide plate unit at two different rotation angles according to an exemplary embodiment.

[0037] Figure 12 It is a schematic diagram of the structure of a wall-mounted boiler according to another exemplary embodiment.

[0038] In the figure: 1. first body; 2. second body; 3. first diverter tube; 4. second diverter tube; 5. partition adjustment mechanism; 51. fixed ring; 511. movable groove; 52. baffle plate; 53. rotating ring; 531. sliding groove; 54. sliding block; 55. moving rod; 56. toggle block; 6. wind deflector mechanism; 61. baffle; 62. reset spring; 7. guide mechanism; 71. rotating shaft; 72. guide plate unit; 721. lower plate; 722. upper plate; 723. middle plate; 7231. through groove. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0040] In an exemplary embodiment, referring to Figures 1 - 11 Embodiment 1 of the present application proposes a cylindrical full premixed staged burner, comprising a first body 1 and a second body 2, wherein the second body 2 is sleeved on the first body 1, a first flow divider 3 is arranged inside the first body 1, and a second flow divider 4 is arranged inside the second body 2, and further comprising:

[0041] The partition adjustment mechanism 5 is arranged at the burner inlet;

[0042] The baffle adjustment mechanism 5 includes a fixed ring 51, a plurality of baffle plates 52 slidably disposed on the fixed ring 51, and a rotating ring 53 connected to the plurality of baffle plates 52. The baffle adjustment mechanism 5 adjusts the area of ​​the burner air inlet passage by moving the baffle plates 52.

[0043] The wind deflector mechanism 6 includes a first wind deflector assembly disposed inside the first flow dividing cylinder 3 and a second wind deflector assembly disposed inside the second flow dividing cylinder 4. The wind deflector mechanism 6 adjusts the opening and closing angle of the baffle 61 under the blowing of the mixed gas.

[0044] The flow guiding mechanism 7 includes a first flow guiding assembly disposed inside the first flow dividing cylinder 3 and a second flow guiding assembly disposed inside the second flow dividing cylinder 4. The flow guiding mechanism 7 adjusts the rotation angle of the flow guiding plate unit 72 according to the flow rate of the mixed gas.

[0045] Among them, by setting the cooperation of the partition adjusting mechanism 5, the wind deflector mechanism 6 and the flow guiding mechanism 7, passive intelligent adjustment is realized. The partition adjusting mechanism 5 mechanically changes the area of the burner air inlet channel. Without an electric control system, rapid response to load changes is achieved, the system structure is simplified, the air inlet adjustment speed and the stability of the burner are improved. The wind deflector mechanism 6 automatically adjusts the opening and closing angle under the action of the gas flow, without external control, adapts to the change of the air flow intensity, ensures the uniformity of the gas flow distribution inside the burner under different loads, and improves the combustion efficiency and flame stability. The flow guiding mechanism 7 automatically rotates to adjust the angle of the flow guiding plate according to the air flow speed, optimizes the air flow direction and speed distribution. Even if the air flow fluctuates, the air flow can be kept evenly and smoothly mixed, effectively suppressing the phenomenon of combustion instability.

[0046] In this embodiment, the cylindrical fully premixed segmented burner mainly includes a first body 1 and a second body 2, which are arranged coaxially. The second body 2 is concentrically sleeved outside the first body 1, and the overall structure is a double-cylinder type, which can realize multi-stage segmentation, flow division and gas mixing control, so as to effectively optimize the combustion process.

[0047] The first body 1: A first flow dividing cylinder 3 is arranged inside, which is mainly used for primary flow division and premixing of the incoming gas.

[0048] The second body 2: A second flow dividing cylinder 4 is arranged inside, which further refines the air flow distribution on the basis of the primary flow division and forms a secondary premixing area.

[0049] In addition, the partition adjusting mechanism 5, the wind deflector mechanism 6 and the flow guiding mechanism 7 in the present invention can also be adapted to be applied to multi-cylinder (more than or equal to three cylinders) burners. Correspondingly, a wind deflector mechanism 6 and a flow guiding mechanism 7 need to be arranged inside each cylinder.

[0050] This segmented design enables the gas and air to be mixed as needed in different regions, improving the combustion efficiency and reducing emissions.

[0051] The baffle adjustment mechanism 5 is arranged at the inlet end of the burner and is used to roughly adjust the total intake air flow rate and flow pattern to ensure the stability of the gas / air ratio under different loads. Among them, the fixed ring 51 is fixed at the burner inlet to play a supporting and positioning role. There are multiple groups of baffle plates 52, which can slide along the fixed ring 51. By changing the sliding position, the size of the opening between the multiple baffle plates 52 is changed, thereby adjusting the opening degree of the air inlet. The rotating ring 53 is connected to the baffle plates 52 to uniformly drive the multiple baffle plates 52 to move synchronously to achieve rapid flow rate adjustment.

[0052] The wind deflector mechanism 6 is arranged inside the two-stage flow splitting cylinder and is mainly used to finely control the speed and direction of the air flow entering the mixing area to adapt to different combustion states. The wind deflector forms an adaptive adjustment with the flow field: as the flow rate and speed of the mixed gas change, the wind deflector can automatically change the opening and closing angle under the blowing of the air flow, realizing the dynamic adjustment of the gas inlet mode and improving the response speed of the burner to instantaneous load changes.

[0053] The flow guiding mechanism 7 is located inside the flow splitting cylinder and further optimizes the flow direction and velocity distribution of the mixed gas, making the air flow entering the combustion area more uniform and organized. Through the change of the gas flow velocity, the deflector unit 72 can rotate within a certain range (the high-velocity gas blows the deflector unit 72 and then drives the deflector unit 72 to rotate). The change in the angle of the deflector unit 72 can make the air flow form different swirling or tangential distributions, promoting the further mixing of gas and air.

[0054] In summary, the gas-air mixture first passes through the baffle adjustment mechanism 5 to roughly adjust the intake air volume according to the load demand, and then enters the first flow splitting cylinder 3 or the second flow splitting cylinder 4. It first undergoes the preliminary flow splitting, shaping and mixing of the first wind deflector assembly or the second wind deflector assembly, and then undergoes further refinement under the further action of the first flow guiding assembly or the second flow guiding assembly. Finally, the gas-air mixture enters the combustion area for combustion with ideal uniformity, appropriate speed and swirling characteristics.

[0055] Further, as Figures 3 - 5 shown, a sliding block 54 is provided at one end of the baffle plate 52 facing the rotating ring 53, and a sliding groove 531 is opened at the position of the rotating ring 53 corresponding to the sliding block 54;

[0056] A moving rod 55 is provided at one end of the baffle plate 52 facing the fixed plate, and a moving groove 511 is opened at the position of the fixed plate corresponding to the moving rod 55.

[0057] The sliding block 54 is slidably embedded in the sliding groove 531 provided at the corresponding position on the rotating ring 53. The cooperation between the sliding block 54 and the sliding groove 531 can effectively limit the radial displacement of the blocking plate 52 during the rotation of the rotating ring 53, thereby ensuring that the blocking plate 52 moves along a predetermined trajectory during the rotation, thereby improving the stability and reliability of the overall mechanism.

[0058] The existence of the moving groove 511 enables the moving rod 55 to move within a certain range during the rotation or fine-tuning process, which not only guides the position of the blocking plate 52, but also plays a role in auxiliary support and positioning, thereby enhancing the overall rigidity of the blocking structure and the smoothness of operation.

[0059] It should be noted that, in order to ensure the stability of the rotation of the rotating ring 53, a toggle block 56 can be set on the outer side of the rotating ring 53, and the driving unit (such as a stepping motor or other mechanism with a rotation output function) drives the rotation of the toggle block 56, thereby driving the rotating ring 53 to rotate synchronously. When the rotating ring 53 rotates, relying on the coordinated cooperation between the sliding block 54 and the sliding groove 531, and the moving rod 55 and the moving groove 511, the multiple blocking plates 52 rotate synchronously with the rotating ring 53, thereby realizing the function of synchronous movement of multiple partition plates;

[0060] In order to improve the accuracy and reliability of transmission, the toggle block 56 can be designed to have a certain elasticity or a limiting structure to ensure that slipping or separation is avoided during the transmission process, thereby further improving the operating stability and service life of the entire system.

[0061] Further, if Figure 3 As shown, the lower end surface of the first flow dividing cylinder 3 is fixedly connected to the fixing plate. Optionally, a firm installation is achieved by threaded connection, welding or bonding, so as to ensure that the first flow dividing cylinder 3 can always maintain a stable position during operation and resist the disturbance force generated by the fluid, airflow or external vibration. The fixed connection between the first flow dividing cylinder 3 and the fixing plate not only plays a supporting role, but also can effectively ensure the strength and sealing of the overall structure of the system to prevent leakage or displacement.

[0062] The lower end surface of the second flow dividing tube 4 abuts against the baffle plate 52. The abutting setting can ensure the sealing between the baffle plate 52 and the lower end surface of the second flow dividing tube 4, thereby ensuring the smooth entry of the gas.

[0063] Further, if Figures 6 - 8 As shown, the first wind shield assembly includes a plurality of baffles 61 arranged in a circular array along the inner wall of the first diverter cylinder 3 and a return spring 62 connected to the baffles 61 .

[0064] The first windshield assembly includes several groups of baffles 61 distributed in an annular array along the inner wall of the first flow dividing cylinder 3. Each baffle 61 is arranged equidistantly in the circumferential direction and can swing or flip according to the pressure change during the fluid flow, so as to realize the preliminary adjustment of the fluid flow rate and direction and the suppression of disturbance. One end of each baffle 61 is rotatably connected to the inner wall of the first flow dividing cylinder 3 through a connecting mechanism, and the other end is freely suspended in the flow path and can rotate around the axis under the impact of the fluid.

[0065] To ensure that the baffle 61 can quickly return to the initial state after the fluid impact disappears, each baffle 61 is connected to the inner wall of the first flow dividing cylinder 3 through a return spring 62. The return spring 62 preferably adopts a torsion spring or a tension spring structure and has good elastic recovery performance, which can provide a stable return torque after the baffle 61 deflects, avoiding the baffle 61 staying in an abnormal position due to short-term fluid fluctuations, thus ensuring the response speed and reliability of the whole system.

[0066] Further, the second windshield assembly is exactly the same as the first windshield assembly in structure and is also composed of several groups of baffles 61 arranged in an annular array and the matching return springs 62 connected thereto. The second windshield assembly is installed inside the second flow dividing cylinder 4 and is evenly distributed along its inner wall to achieve a fluid regulation effect similar to that of the first flow dividing cylinder 3.

[0067] Through this design, the first windshield assembly and the second windshield assembly can effectively play the following roles in their respective corresponding flow dividing paths:

[0068] Adjust the air flow or fluid flow rate and balance the flow field;

[0069] Reduce the turbulence or pulsation phenomenon and improve the flow dividing stability;

[0070] Provide buffer protection during abnormal fluid impact and reduce the impact load on the subsequent system structure.

[0071] At the same time, the cooperation of the baffle 61 and the return spring 62 enables the whole windshield assembly to have a certain self-adaptive ability, which can dynamically adjust the opening and closing angles according to the fluid pressure change under different working conditions, so as to optimize the fluid distribution and system performance.

[0072] Further, as Figures 9 - 11 shown, the first diversion assembly includes several groups of rotating shafts 71 arranged in an annular array along the inner wall of the first flow dividing cylinder 3 and diversion plate units 72 rotatably connected to the rotating shafts 71;

[0073] The diversion plate unit 72 includes a lower plate 721, an upper plate 722 integrally formed, and an intermediate plate 723 connecting the lower plate 721 and the upper plate 722. Several through grooves 7231 are formed on the intermediate plate 723;

[0074] The area of the lower plate 721 is larger than the area of the upper plate 722;

[0075] A return torsion spring is provided between the rotating shaft 71 and the flow guide plate unit 72.

[0076] Among them, the first flow guide assembly realizes the directional control of the fluid through a plurality of groups of rotating shafts 71 arranged in an annular array along the inner wall of the first shunt cylinder 3 and the flow guide plate units 72 rotatably connected to the rotating shafts 71. Each flow guide plate unit 72 can rotate around the rotating shaft 71, thereby changing the flow direction or flow rate of the fluid. This design is usually used in the shunting, guiding or regulation of air flow or liquid flow, especially in application scenarios where precise control of fluid flow is required.

[0077] In another exemplary embodiment, the flow guide plate unit 72 includes three parts:

[0078] Lower plate 721: The area of the lower plate 721 is larger than that of the upper plate 722. This design can enhance the contact area between the flow guide plate unit 72 and the gas, making it prone to deflection under the impact of the fluid. The larger-area lower plate 721 can provide a larger surface area to disturb or disperse the fluid flow, thereby improving the flow guide efficiency.

[0079] Upper plate 722: The area of the upper plate 722 is relatively small. When cooperating with the lower plate 721, it helps to form a flow guiding effect. The design of the upper plate 722 usually requires it to play a guiding role in the fluid flow, guiding the fluid into the through grooves 7231 provided in the lower plate 721 or the middle plate 723.

[0080] Middle plate 723: The middle plate 723 connects the lower plate 721 and the upper plate 722. It plays a supporting role in the flow guide plate unit 72 and further adjusts the fluid flow by opening a number of through grooves 7231. These through grooves 7231 can be used for fluid guiding or drainage, helping the fluid to form a specific flow path when passing through the flow guide plate unit 72.

[0081] The setting of the return torsion spring can ensure that the flow guide plate unit 72 can quickly return to the initial state after being acted upon by an external force. Especially when the fluid pressure changes or the flow rate is unstable, the design of the return torsion spring can ensure the reliable return of the flow guide plate, avoiding the flow guide plate staying in a non-ideal position due to the instantaneous fluctuation or irregular flow of the fluid, thereby affecting the fluid flow guiding effect.

[0082] The function of the deflector unit 72 is to adjust the flow direction, flow velocity or flow rate distribution of the fluid by rotation. As the deflectors rotate, they change the streamlines of the fluid and help reduce turbulence or flow instability. For example, when the air dynamic pressure is low, the deflector blades are kept at a small opening angle (about 5°) under the action of the torsion spring to concentrate the air flow, increase the local flow velocity and mixing efficiency. When the air dynamic pressure is high, the pressure overcomes the spring torque, and the deflector blades automatically deflect to a larger angle (about 15°) to disperse the air flow, expand the combustion zone and improve flame stability.

[0083] Further, as Figures 2 - 9 shown, the first wind shield assembly is arranged at the lower end of the first deflector assembly, and the partition adjusting mechanism 5 is arranged at the lower end of the first wind shield assembly.

[0084] The fluid first passes through the first deflector assembly, and the deflector unit 72 dynamically adjusts the angle according to the fluid pressure to achieve preliminary guidance or diversion. Immediately afterwards, the fluid enters the first wind shield assembly, and the fluid velocity is further regulated, and the flow field tends to be stable. Finally, the fluid passes through the partition adjusting mechanism 5, and more detailed diversion or flow control is carried out according to needs to ensure that the output fluid meets the system requirements.

[0085] This three-stage structure (deflection - wind shielding - partition) forms a fluid management system that gradually refines, stabilizes and regulates, taking into account both rough adjustment and fine adjustment, and improving the adaptability and stability of the overall system under complex working conditions.

[0086] It should be noted that each structure in the partition adjusting mechanism 5, the wind shield mechanism 6 and the deflector mechanism 7 is preferably made of high-temperature resistant materials to ensure the normal operation of the mechanism.

[0087] Working process:

[0088] Intake air regulation of the fuel-air mixture

[0089] Partition adjusting mechanism 5: At the burner inlet, the partition adjusting mechanism 5 is responsible for roughly adjusting the intake air volume. This mechanism is supported by a fixed ring 51, and a sliding baffle 52 slides along the fixed ring 51. As the rotating ring 53 rotates, a plurality of baffles 52 move synchronously to change the opening of the intake port and adjust the total intake air flow entering the burner;

[0090] Airflow diversion and premixing

[0091] The first shunt cylinder 3: The fuel gas entering the burner first passes through the partition adjusting mechanism 5 and enters the first shunt cylinder 3, where the air flow is distributed and the first-stage mixing and premixing processes are started;

[0092] Second flow divider cylinder 4: The gas passing through the first flow divider cylinder 3 enters the second flow divider cylinder 4, where the air flow distribution is further refined and a secondary premixed region is formed; in this way, multi-stage flow division and segmented mixing are achieved to ensure uniform mixing of the gas and air;

[0093] Wind shielding and air flow regulation

[0094] First wind shielding component: A plurality of baffles 61 are arranged in the first flow divider cylinder 3. These baffles 61 are distributed in an annular array and can swing or flip automatically according to the change of air flow pressure; the function of the wind shielding component is to initially adjust the speed and direction of the air flow, relieve the turbulence phenomenon and improve the stability of the flow field;

[0095] Second wind shielding component: Similar to the first wind shielding component, the second wind shielding component is installed in the second flow divider cylinder 4 and plays a similar role to further ensure the smoothness and stability of the air flow;

[0096] Flow guiding and fine adjustment

[0097] First flow guiding component: A flow guiding plate unit 72 is arranged in the first flow divider cylinder 3. The flow guiding plate is rotatably connected through a rotating shaft 71 and can rotate around the rotating shaft 71 to adjust the flow direction and flow rate of the air flow; according to the different speeds of the air flow, the flow guiding plate will automatically adjust the angle to optimize the air flow distribution and help the air flow to mix more evenly and smoothly;

[0098] Second flow guiding component: It is also provided with a flow guiding plate unit 72 to further finely adjust the air flow; by rotating, the flow guiding plate can change the flow direction and distribution of the air flow to ensure further mixing of the gas and air and reduce the phenomenon of turbulence or flow instability;

[0099] Further adjustment of flow rate and air flow

[0100] Rotating ring 53 and sliding mechanism: The rotating ring 53 cooperates with the sliding groove 531 and the sliding block 54, so that a plurality of partition plates 52 can rotate synchronously, thereby adjusting the opening degree of the air flow inlet and outlet; during this process, the cooperation between the sliding block 54 and the sliding groove 531 ensures the stability and accuracy of the partition plate 52 during rotation, thus improving the reliability of the entire mechanism;

[0101] Adaptive adjustment

[0102] Wind shielding plate and air flow feedback: The wind shielding plate component depends on the flow of the mixed gas and automatically adjusts the opening and closing angle, and can adapt to the change of air flow intensity; in this way, the burner does not require an external control system and can maintain the uniformity of air flow distribution under different loads, improving the combustion efficiency and flame stability;

[0103] Adaptive adjustment of the flow guiding mechanism 7: The angle of the flow guiding plate unit 72 is automatically adjusted according to the flow velocity of the air flow, optimizing the direction and velocity of the air flow, enabling the air flow to maintain a stable mixing effect under different loads, thereby effectively reducing the risk of combustion instability;

[0104] System feedback and response

[0105] After the gas-air mixture undergoes multi-stage adjustment by the baffle, the wind deflector, and the flow guiding plate, it enters the combustion zone for final combustion; during the whole process, the adjustment of the air flow is continuous and adaptive. As the load and the air flow change, the burner can quickly adjust to ensure stable and efficient combustion;

[0106] The cooperation of various adjustment mechanisms (baffle, wind deflection, flow guiding) enables the burner to automatically adjust according to the air flow change and gas demand under actual working conditions, thereby optimizing the combustion process, improving the combustion efficiency, and reducing emissions;

[0107] Air flow distribution and flame stability

[0108] By finely adjusting the air flow and improving the mixing of gas and air, the burner can effectively suppress the instability of the flame, ensuring the stability of the flame and the combustion efficiency; whether at high load or low load, the air flow can be automatically adjusted according to needs, thus avoiding the problems of flame instability and low combustion efficiency that may occur in traditional burners.

[0109] In another exemplary embodiment, the present application also proposes a wall-mounted boiler, referring to the attached Figure 12 , Figure 12 is a schematic structural diagram of a wall-mounted boiler shown according to another exemplary embodiment. This wall-mounted boiler includes the cylindrical fully premixed segmented burner in any of the above embodiments.

[0110] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cylindrical full premixed staged burner, comprising a first body (1) and a second body (2), wherein the second body (2) is sleeved on the first body (1), a first flow divider (3) is arranged inside the first body (1), and a second flow divider (4) is arranged inside the second body (2), characterized in that: Also includes: A partition adjustment mechanism (5) is arranged at the burner inlet; The baffle plate adjusting mechanism (5) comprises a fixed ring (51), a plurality of baffle plates (52) slidably arranged on the fixed ring (51), and a rotating ring (53) connected to the plurality of baffle plates (52); the baffle plate adjusting mechanism (5) adjusts the area of ​​the burner air inlet passage through the movement of the baffle plates (52); A windshield mechanism (6), comprising a first windshield assembly (61) arranged inside the first flow dividing cylinder (3) and a second windshield assembly (62) arranged inside the second flow dividing cylinder (4), wherein the windshield mechanism (6) adjusts the opening and closing angle of the baffle (611) under the blowing of the mixed gas; A flow guide mechanism (7) comprises a first flow guide component (71) arranged inside a first flow diversion cylinder (3) and a second flow guide component (72) arranged inside a second flow diversion cylinder (4), wherein the flow guide mechanism (7) adjusts the rotation angle of a flow guide plate unit (712) according to the flow rate of the mixed gas.

2. A cylindrical fully premixed staged burner according to claim 1, characterized in that: A sliding block (54) is provided at one end of the blocking plate (52) facing the rotating ring (53), and a sliding groove (531) is provided on the rotating ring (53) at a position corresponding to the sliding block (54); A moving rod (55) is provided at one end of the blocking plate (52) facing the fixed plate, and a moving groove (511) is provided on the fixed plate at a position corresponding to the moving rod (55).

3. A cylindrical fully premixed staged burner according to claim 2, characterized in that: The lower end surface of the first flow-dividing cylinder (3) is fixedly connected to the fixing plate, and the lower end surface of the second flow-dividing cylinder (4) is in contact with the blocking plate (52).

4. A cylindrical fully premixed staged burner according to claim 1, characterized in that: The first wind shielding assembly (61) comprises a plurality of baffles (611) arranged in a circular array along the inner wall of the first diversion cylinder (3) and a return spring (612) connected to the baffles (611).

5. A cylindrical fully premixed staged burner according to claim 4, characterized in that: The second wind shielding component (62) has the same structure as the first wind shielding component (61).

6. A cylindrical fully premixed staged burner according to claim 1, characterized in that: The first flow guide assembly (71) comprises a plurality of rotating shafts (711) arranged in a circular array along the inner wall of the first flow dividing cylinder (3) and a flow guide plate unit (712) rotatably connected to the rotating shafts (711).

7. A cylindrical fully premixed staged burner according to claim 6, characterized in that: The guide plate unit (712) comprises a lower plate (7121), an upper plate (7122) and an intermediate plate (7123) connected to the lower plate (7121) and the upper plate (7122) which are integrally formed, and a plurality of through grooves (71231) are provided on the intermediate plate (7123).

8. A cylindrical fully premixed staged burner according to claim 7, characterized in that: The area of ​​the lower plate (7121) is greater than the area of ​​the upper plate (7122).

9. A cylindrical fully premixed staged burner according to claim 1, characterized in that: A return torsion spring is provided between the rotating shaft (711) and the guide plate unit (712).

10. A cylindrical fully premixed staged burner according to claim 1, characterized in that: The first wind shielding component (61) is arranged at the lower end of the first air guide component (71), and the partition plate adjustment mechanism (5) is arranged at the lower end of the first wind shielding component (61).

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