Combustion device and gas-fired heating stove having the same

Abstract

The utility model discloses a kind of combustion device and gas heating stove with it, combustion device includes: burner, the burner inside includes gas distribution chamber, first gas distribution chamber and second gas distribution chamber, the gas distribution chamber is equipped with mixed gas inlet, first gas distribution port and second gas distribution port, the gas distribution chamber is communicated with the first gas distribution chamber by the first gas distribution port, the gas distribution chamber is communicated with the second gas distribution chamber by the second gas distribution port, the surface of the burner is equipped with multiple first flame hole with the first gas distribution chamber communication, the surface of the burner is also equipped with second flame hole with the second gas distribution chamber communication;Distribution component, it is movably arranged in the gas distribution chamber, and the distribution component is used to adjust the opening of the first gas distribution port and the second gas distribution port.The utility model can improve the load ratio of gas heating stove.

Description

Technical Field

[0001] This utility model relates to the field of combustion device technology, and in particular to a combustion device and a gas-fired heating furnace having the same. Background Technology

[0002] Most gas-fired boilers on the market use combustion devices with fixed burner areas. Heat load is adjusted by regulating the speed of the fully premixed fan. When the heat load is high, the fan speed is high; similarly, when the heat load is low, the fan speed is low. This prevents further increasing the load ratio of the gas-fired boiler, thus affecting its applicability. The load ratio refers to the ratio of the minimum load to the maximum load. Utility Model Content

[0003] This utility model provides a combustion device and a gas-fired boiler having the same, so as to at least solve some of the above-mentioned technical problems existing in the prior art.

[0004] In a first aspect, embodiments of the present invention provide a combustion device, comprising: The burner includes a gas distribution chamber, a first gas distribution chamber, and a second gas distribution chamber. The gas distribution chamber is provided with a mixed gas inlet, a first gas distribution port, and a second gas distribution port. The gas distribution chamber is connected to the first gas distribution chamber through the first gas distribution port and to the second gas distribution chamber through the second gas distribution port. The surface of the burner is provided with a plurality of first flame holes that communicate with the first gas distribution chamber and a second flame hole that communicates with the second gas distribution chamber. A distribution component is movably disposed in the gas distribution chamber, and the distribution component is used to adjust the opening degree of the first gas distribution port and the second gas distribution port.

[0005] In an optional embodiment, the burner includes: The base includes a first surface and a second surface opposite to each other. The first air distribution chamber and the second air distribution chamber are located on one side of the first surface, and the air distribution chamber is located on one side of the second surface. The first air distribution port and the second air distribution port are opened on the base.

[0006] In an optional embodiment, the allocation component includes: An adjusting plate, disposed in the air distribution chamber, is rotatably connected to the base. The adjusting plate rotates to adjust the opening degree of the first air distribution port and the second air distribution port; wherein... In the first position, the adjusting plate completely closes the first air outlet and completely opens the second air outlet; In the second position, the adjusting plate completely closes the second air outlet and completely opens the first air outlet; In the third position, the adjusting plate fully opens the first and second air ports.

[0007] In an optional embodiment, the allocation component includes: A drive assembly is connected to the adjusting plate in a driving manner to drive the adjusting plate to rotate.

[0008] In an optional embodiment, the driving component includes: A gear component rotatably connected to the base, the gear component having a first tooth and the adjusting plate having a second tooth, the first tooth meshing with the second tooth; A drive shaft is provided, and the drive assembly is located on the side of the air distribution chamber away from the base. The drive shaft extends into the air distribution chamber and is connected to the gear component for driving the gear component to rotate.

[0009] In an optional embodiment, the first air distribution port and the second air distribution port are both fan-shaped annular ports; The adjusting plate includes a blocking part and a transmission part. The blocking part is used to close the first air distribution port and the second air distribution port. The blocking part is fan-shaped. The transmission part is used to drive the drive assembly.

[0010] In an optional embodiment, the burner includes: A first end cap is connected to the first surface of the base. The first end cap and / or one side of the first surface has a gas distribution groove. The first end cap is connected to the base to form an independent first gas distribution chamber and a second gas distribution chamber. The first flame hole and the second flame hole are provided on the first end cap.

[0011] In an optional embodiment, the burner includes: The second end cap is connected to the second surface of the base. The second end cap and / or one side of the second surface has a cavity. The second end cap is connected to the base to enclose the cavity to form the gas distribution chamber. The gas mixture inlet is located on the second end cap.

[0012] In an optional embodiment, the combustion device further includes a fan connected to the burner, wherein the air outlet of the fan is connected to the gas mixture inlet.

[0013] Secondly, this utility model provides a gas-fired heating furnace, including the combustion device described in this utility model embodiment.

[0014] One embodiment of this utility model has the following advantages or beneficial effects: The combustion device of this utility model embodiment includes a burner and a distribution component. The burner includes a first gas distribution chamber and a second gas distribution chamber. The mixed gas in the first gas distribution chamber and the second gas distribution chamber is burned through the first flame hole and the second flame hole, respectively. The burner also includes a gas distribution chamber. The gas distribution chamber supplies the mixed gas to the first gas distribution chamber and the second gas distribution chamber through the first gas distribution port and the second gas distribution port, respectively. The distribution component can adjust the opening degree of the first gas distribution port and the second gas distribution port, thereby realizing the distribution of the mixed gas in the first gas distribution chamber and the second gas distribution chamber. It can provide mixed gas to the first gas distribution chamber and / or the second gas distribution chamber, thereby achieving the purpose of adjusting the combustion flame hole area, improving the load ratio of the gas-fired heating boiler and the applicability of the gas-fired heating boiler. Attached Figure Description

[0015] The above and other features and advantages of this invention will become more apparent from a detailed description of exemplary embodiments with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of a combustion device according to an exemplary embodiment; Figure 2 This is a partial cross-sectional structural schematic diagram of a combustion device according to an exemplary embodiment; Figure 3 This is an exploded structural diagram of a combustion device according to an exemplary embodiment; Figure 4 This is an exploded view of a portion of the structure of a combustion device according to an exemplary embodiment. Figure 1 ; Figure 5 This is an exploded view of a portion of the structure of a combustion device according to an exemplary embodiment. Figure 2 ; Figure 6 This is a schematic diagram of the structure of a first end cap according to an exemplary embodiment.

[0017] The reference numerals in the attached drawings are explained as follows: 1-burner, 11-base, 111-first gas distribution port, 112-second gas distribution port, 12-first end cap, 13-second end cap, 131-mixed gas inlet, 14-first gas distribution chamber, 15-second gas distribution chamber, 16-gas distribution chamber, 2-distribution assembly, 21-adjusting plate, 211-first connecting shaft, 212-first connecting hole, 22-gear component, 23-drive shaft, 24-drive motor, 3-fan, 4-positioning column, 5-positioning hole. Detailed Implementation

[0018] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0019] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0020] See Figures 1 to 6 ,in, Figure 2 The arrows in the diagram indicate the direction of gas mixture flow. This embodiment of the invention provides a combustion device, including a burner 1 and a distribution assembly 2.

[0021] The burner 1 includes a gas distribution chamber 16, a first gas distribution chamber 14, and a second gas distribution chamber 15. The gas distribution chamber 16 has a mixed gas inlet 131, a first gas distribution port 111, and a second gas distribution port 112. The gas distribution chamber 16 communicates with the first gas distribution chamber 14 through the first gas distribution port 111 and with the second gas distribution chamber 15 through the second gas distribution port 115. The surface of the burner 1 has multiple first flame holes communicating with the first gas distribution chamber 14 and second flame holes communicating with the second gas distribution chamber 15. The gas distribution chamber 16 is connected to the outside through the mixed gas inlet 131, and mixed gas from the outside is input into the gas distribution chamber 16 through the mixed gas inlet 131. The mixed gas in the gas distribution chamber 16 enters the first gas distribution chamber 14 through the first gas distribution port 111. The first gas distribution chamber 14 is connected to the outside through the first flame holes, and the mixed gas in the first gas distribution chamber 14 is burned through the first flame holes. The gas mixture in the gas distribution chamber 16 enters the second gas distribution chamber 15 through the second gas distribution port 112. The second gas distribution chamber 15 is connected to the outside through the second ignition port, and the gas mixture in the first gas distribution chamber 14 is burned through the first ignition port.

[0022] The distribution component 2 is movably disposed in the gas distribution chamber 16. The distribution component 2 is used to adjust the opening degree of the first gas distribution port 111 and the second gas distribution port 112.

[0023] The combustion device of this utility model embodiment includes a burner 1 and a distribution component 2. The burner 1 includes a first gas distribution chamber 14 and a second gas distribution chamber 15. The mixed gas in the first gas distribution chamber 14 and the second gas distribution chamber 15 is burned through the first flame hole and the second flame hole, respectively. The burner 1 also includes a gas distribution chamber 16. The gas distribution chamber 16 delivers the mixed gas to the first gas distribution chamber 14 and the second gas distribution chamber 15 through the first gas distribution port 111 and the second gas distribution port 112, respectively. The distribution component 2 can adjust the opening degree of the first gas distribution port 111 and the second gas distribution port 112, thereby realizing the distribution of the mixed gas in the first gas distribution chamber 14 and the second gas distribution chamber 15. It can provide mixed gas to the first gas distribution chamber 14 and / or the second gas distribution chamber 15, thereby achieving the purpose of adjusting the combustion flame hole area, improving the load ratio of the gas-fired heating boiler and the applicability of the gas-fired heating boiler.

[0024] In this embodiment of the invention, the mixture of gas and air is distributed through the gas distribution chamber 16. The distribution component 2 can control the mixture to be input only into the first gas distribution chamber 14 through the first gas distribution port 111, or to be input only into the second gas distribution chamber 15 through the second gas distribution port 112, or to be input into both the first and second gas distribution chambers 14 and 15. When both the first and second gas distribution chambers 14 and 15 contain the mixture, the mixture burns through the first and second burner holes. When only the first gas distribution chamber 14 contains the mixture, the mixture burns through the first burner hole, resulting in a smaller burner hole area compared to combustion through both the first and second burner holes. When only the second gas distribution chamber 15 contains the mixture, the mixture burns through the second burner hole, again resulting in a smaller burner hole area compared to combustion through both the first and second burner holes.

[0025] In this embodiment of the invention, the total combustion area of ​​the first burner hole is different from the total combustion area of ​​the second burner hole. The total combustion area of ​​the first burner hole can be greater than that of the second burner hole, or it can be smaller than that of the second burner hole. The mixture is distributed to one or both of the first and second gas distribution chambers 14 and 15 by the distribution component 2, which can achieve multi-level adjustment of the combustion burner hole area.

[0026] In some embodiments, the burner 1 may also be provided with a third gas distribution chamber, which is connected to the gas distribution chamber 16 through a third gas distribution port. A third flame hole is provided on the burner 1 to connect to the third gas distribution chamber. The distribution component 2 can adjust the opening of the first gas distribution port 111, the second gas distribution port 112 and the third gas distribution port to achieve more levels of control over the combustion flame hole area.

[0027] In some embodiments, multiple gas distribution chambers can be arranged in a ring. That is, the outer gas distribution chamber surrounds the inner gas distribution chamber. The innermost gas distribution chamber can be annular or circular. In an exemplary embodiment, the first gas distribution chamber 14 can be arranged to surround the second gas distribution chamber 15. Alternatively, the second gas distribution chamber 15 can be arranged to surround the first gas distribution chamber 14. For example, in a specific implementation, the first gas distribution chamber 14 can surround the second gas distribution chamber 15. The second gas distribution chamber 15 is circular. The first gas distribution chamber 14 is annular. The first gas distribution chamber 14 and the second gas distribution chamber 15 can be separated by an annular convex ridge. The total combustion area of ​​the first burner can be greater than the total combustion area of ​​the second burner.

[0028] In some embodiments, see Figure 2 and Figure 3 The burner 1 includes a base 11, which has a first surface and a second surface facing each other. A first gas distribution chamber 14 and a second gas distribution chamber 15 are located on one side of the first surface, and a gas distribution chamber 16 is located on one side of the second surface. A first gas distribution port 111 and a second gas distribution port 112 are formed on the base 11. In this embodiment of the invention, the base 11 separates the gas distribution chamber 16 and the gas distribution chambers, allowing the mixed gas to be input into the gas distribution chamber 16 from one end of the burner 1, so that combustion occurs at the other end of the burner 1. The first gas distribution port 111 and the second gas distribution port 112 are formed on the base 11, allowing the first gas distribution chamber 14 and the second gas distribution chamber 15 to be directly connected to the gas distribution chamber 16 through the first gas distribution port 111 and the second gas distribution port 112, respectively, so that the mixed gas can be smoothly distributed to the first gas distribution chamber 14 and / or the second gas distribution chamber 15.

[0029] In some embodiments, see Figure 2 and Figure 3 The burner 1 also includes a first end cover 12 and a second end cover 13. The first end cover 12 and the second end cover 13 are respectively disposed on both sides of the base 11. The first end cover 12 and the base 11 form a first gas distribution chamber 14 and a second gas distribution chamber 15. The second end cover 13 and the base 11 form a gas distribution chamber 16.

[0030] The first end cap 12 is connected to the first surface of the base 11. The first end cap 12 and / or one side of the first surface has a gas distribution groove. The connection between the first end cap 12 and the base 11 forms a first gas distribution chamber 14 and a second gas distribution chamber 15, which are independent of each other. A first flame hole and a second flame hole are located on the first end cap 12. By creating gas distribution grooves on the first end cap 12 and / or the base 11, the first gas distribution chamber 14 and the second gas distribution chamber 15 can be formed after the first end cap 12 is connected to the base 11. The structure is simple and easy to manufacture.

[0031] In an exemplary embodiment, the first end cap 12 may have a series of air distribution grooves arranged in a ring from the inside to the outside. The first surface is a plane. After the first end cap 12 is connected to the base 11, the first surface closes the air distribution grooves to form a first air distribution chamber 14 and a second air distribution chamber 15.

[0032] Alternatively, the first side of the base 11 may have a series of air distribution grooves that are arranged in a ring from the inside to the outside. The side of the first end cap 12 opposite to the first side is a plane. After the first end cap 12 is connected to the base 11, the first end cap 12 closes the air distribution grooves, forming the first air distribution chamber 14 and the second air distribution chamber 15.

[0033] Alternatively, the first end cap 12 may have a series of air distribution grooves arranged in a ring from the inside to the outside, and the first side of the base 11 may also have a series of air distribution grooves arranged in a ring from the inside to the outside. After the first end cap 12 is connected to the base 11, the air distribution grooves are closed one by one to form the first air distribution chamber 14 and the second air distribution chamber 15.

[0034] When the burner 1 includes a third gas distribution chamber or more gas distribution chambers, the specific structure can be referred to the first gas distribution chamber 14 and the second gas distribution chamber 15 described above, and will not be repeated here.

[0035] The first end cap 12 and the base 11 can be connected by bolts.

[0036] A first positioning structure may be provided between the first end cap 12 and the base 11. (See also...) Figure 5 and Figure 6 The first positioning structure may include a positioning post 4 disposed on one of the first end cap 12 and the base 11, and a positioning hole 5 disposed on the other. For example, the positioning post 4 may be disposed on the base 11, and the positioning hole 5 may be disposed on the first end cap 12.

[0037] The second end cap 13 is connected to the second surface of the base 11. The second end cap 13 and / or one side of the second surface have a cavity. The connection between the second end cap 13 and the base 11 encloses the cavity to form a gas distribution chamber 16. A mixed gas inlet 131 is located on the second end cap 13. By providing a cavity on the second end cap 13 and / or one side of the second surface, the cavity can be enclosed to form a gas distribution chamber 16 after the second end cap 13 is connected to the base 11. This structure is simple and easy to manufacture.

[0038] In an exemplary embodiment, the second end cap 13 may have a cavity, and one side of the second surface of the base 11 may be a plane. After the second end cap 13 is connected to the base 11, the cavity is formed to form a gas distribution chamber 16.

[0039] Alternatively, the side of the second end cap 13 opposite to the second surface of the base 11 can be a plane, and a cavity can be provided on one side of the second surface of the base 11. After the second end cap 13 is connected to the base 11, the cavity is surrounded to form a gas distribution chamber 16.

[0040] Alternatively, the second end cap 13 and the second surface of the base 11 may be provided with recesses, and after the second end cap 13 is connected to the base 11, the recesses will form a gas distribution chamber 16.

[0041] The second end cap 13 and the base 11 can be connected by bolts.

[0042] A second positioning structure may be provided between the second end cap 13 and the base 11. The second positioning structure may refer to the first positioning structure, or it may be different from the first positioning structure.

[0043] A connecting flange can be formed on the outer side of the base 11.

[0044] The first end cap 12 and the second end cap 13 can be connected to the connecting flange respectively.

[0045] In some embodiments, see Figure 3 and Figure 4 The distribution component 2 includes an adjusting plate 21 disposed within the air distribution chamber 16. The adjusting plate 21 is rotatably connected to the base 11. The adjusting plate 21 rotates to adjust the opening degree of the first air distribution port 111 and the second air distribution port 112. The adjusting plate 21 can reciprocate around a rotating shaft. During the rotation, it can block the first air distribution port 111 and the second air distribution port 112, thereby adjusting the opening degree of the first air distribution port 111 and the second air distribution port 112.

[0046] See Figure 4 One of the adjusting plate 21 and the base 11 has a first connecting shaft 211, and the other has a first connecting hole 212. The adjusting plate 21 is rotatably connected to the base 11 through the cooperation of the first connecting shaft 211 and the first connecting hole 212. For example, the base 11 is provided with a first connecting shaft 211, and the adjusting plate 21 is provided with a first connecting hole 212.

[0047] The opening degree of the first air distribution port 111 and the second air distribution port 112 can be adjusted by rotating the adjusting plate 21 to different positions. In the first position, the adjusting plate 21 completely closes the first air distribution port 111 and fully opens the second air distribution port 112. When the adjusting plate 21 is rotated to the first position, the first air distribution port 111 completely overlaps with the adjusting plate 21, while the second air distribution port 112 does not overlap with the adjusting plate 21. This allows the opening of the first air distribution port 111 to be zero, and the opening of the second air distribution port 112 to be at its maximum. The air-fuel mixture is only distributed to the second air distribution groove and combusted through the second burner hole. The area of ​​the combustion hole is only a portion of the second burner hole.

[0048] In the second position, the adjusting plate 21 completely closes the second air distribution port 112 and completely opens the first air distribution port 111. When the adjusting plate 21 is rotated to the second position, the second air distribution port 112 completely overlaps with the adjusting plate 21, while the first air distribution port 111 does not overlap with the adjusting plate 21. This allows the opening of the second air distribution port 112 to be zero, while the opening of the first air distribution port 111 is at its maximum. The air-fuel mixture is only distributed to the first air distribution groove and combusted through the first burner hole. The area of ​​the combustion hole is only a portion of the first burner hole.

[0049] In the third position, the adjusting vane 21 fully opens the first air distribution port 111 and the second air distribution port 112. The adjusting vane 21 in the third position does not overlap with either the first air distribution port 111 or the second air distribution port 112, ensuring that both ports are fully open. This maximizes the opening of both ports. The air-fuel mixture is distributed to the first and second air distribution slots and combusted through the first and second burner holes, respectively. The area of ​​the combustion hole is the sum of the areas of the first and second burner holes.

[0050] The first air distribution port 111 and the second air distribution port 112 are staggered on the rotation trajectory of the adjusting plate 21. When the first air distribution port 111 is completely blocked and its opening is zero, the second air distribution port 112 can be fully opened to its maximum opening. Similarly, when the adjusting plate 21 completely blocks the second air distribution port 112 and its opening is zero, the first air distribution port 111 can be fully opened to its maximum opening. The adjusting plate 21 can also be rotated so that it does not overlap with either the first or second air distribution port 111, keeping the openings of both ports at their maximum. When the total combustion area of ​​the first burner hole is greater than the total combustion area of ​​the second burner hole, the combustion hole area of ​​the burner 1 increases sequentially when the adjusting plate 21 is in the first, second, and third positions, respectively.

[0051] In some embodiments, the distribution component 2 includes a drive component that is tractively connected to the adjusting plate 21 to drive the adjusting plate 21 to rotate. The drive component may extend to the outside of the burner 1 and drive the adjusting plate 21 to rotate from the outside of the burner 1, thereby adjusting the opening degree of the first gas distribution port 111 and the second gas distribution port 112.

[0052] In a specific implementation, the drive assembly may extend through the second end cap 13 to the outside of the burner 1. A sealing structure may be provided between the drive assembly and the burner 1 to prevent leakage of the gas mixture.

[0053] In an exemplary embodiment, a sealing ring or similar device may be provided between the drive assembly and the second end cap 13 to achieve a dynamic seal between the two.

[0054] In some embodiments, see Figure 3 and Figure 4 The drive assembly includes a gear component 22 and a drive shaft 23. The gear component 22 is rotatably connected to the base 11. The gear component 22 has a first tooth, and the adjusting plate 21 has a second tooth. The first tooth and the second tooth mesh with each other. In a specific implementation, the gear component 22 can be a sector gear or a pinion, etc., to drive the adjusting plate 21.

[0055] One of the gear component 22 and the base 11 has a second connecting shaft, and the other has a second connecting hole. The gear component 22 is rotatably connected to the base 11 through the cooperation of the second connecting shaft and the second connecting hole. For example, the base 11 is provided with a second connecting shaft, and the gear component 22 is provided with a second connecting hole.

[0056] The drive assembly is located on the side of the gas distribution chamber 16 away from the base 11. The drive shaft 23 extends into the gas distribution chamber 16 and is connected to the gear component 22 for transmission. The drive shaft 23 is connected to the gear component 22 to drive the gear component 22 to rotate. The drive shaft 23 extends to the outside of the burner 1. When the drive shaft 23 extends to the outside of the burner 1, rotating the drive shaft 23 can drive the gear component 22 to rotate, which in turn drives the adjusting plate 21 to rotate, thereby adjusting the opening degree of the first gas distribution port 111 and the second gas distribution port 112.

[0057] The drive shaft 23 and the gear component 22 can be an integral structure or separate structures. The drive shaft 23 can also pass through the gear component 22 as a second connecting shaft and mate with a second connecting hole. The drive shaft 23 and the gear component 22 can also be connected by a key, interference fit, spline, etc.

[0058] In a specific implementation, the drive shaft 23 extends through the second end cover 13 to the outside of the burner 1. A sealing structure such as a sealing ring can be provided between the drive shaft 23 and the second end cover 13.

[0059] In this embodiment of the invention, the adjusting plate 21 can be driven manually or electrically. In an exemplary embodiment, the gear component 22 can be rotated by manually rotating the drive shaft 23, thereby rotating the adjusting plate 21. A position indicator structure can be provided on the outside of the burner 1 to indicate the position of the adjusting plate 21. For example, when manually driven, the indicating structure can be used to determine whether the adjusting plate 21 is in the first position, the second position, or the third position.

[0060] In a specific implementation, the indicating structure may include position markers on the outer surface of the burner 1 and a pointing structure on the drive shaft 23. The position markers may include markers corresponding to a first position, a second position, and a third position, respectively, and the pointing structure may be, for example, an arrow. When the arrow points to the marker corresponding to the first position, it indicates that the adjusting plate 21 is in the first position. Similarly, when the arrow points to the marker corresponding to the second position, it indicates that the adjusting plate 21 is in the second position. When the arrow points to the marker corresponding to the third position, it indicates that the adjusting plate 21 is in the third position.

[0061] In some embodiments, see Figure 3The drive assembly includes a drive motor 24, which is fixedly mounted outside the burner 1 and is connected to the drive shaft 23. The drive motor 24 drives the drive shaft 23, which in turn drives the gear 22, which in turn drives the adjusting plate 21, thereby adjusting the opening degree of the first air distribution port 111 and the second air distribution port 112.

[0062] The drive motor 24 can be fixed to the second end cover 13. In a specific implementation, the drive motor 24 is fixed to the second end cover 13 by bolts.

[0063] The connection method between the drive motor 24 and the drive shaft 23 is not limited. For example, the drive motor 24 and the drive shaft 23 can be connected by gear transmission, by coupling, or the drive motor 24 and the drive shaft 23 can be directly fixedly connected.

[0064] The drive motor 24 can be connected to a control unit, which controls the drive motor 24 to rotate the drive shaft 23. The control unit can control the drive motor 24 according to a set strategy. The control unit can be the control unit of the gas boiler, or it can be used only to control the drive motor 24.

[0065] In some embodiments, see Figure 4 and Figure 5 The first air distribution port 111 and the second air distribution port 112 are fan-shaped annular structures.

[0066] In some embodiments, see Figure 4 The regulating plate 21 includes a blocking part and a transmission part. The blocking part is used to close the first air distribution port 111 and the second air distribution port 112. The blocking part is fan-shaped. The transmission part is used to drive the drive assembly.

[0067] In some embodiments, see Figures 1 to 3 The combustion device also includes a blower 3, which is connected to the burner 1. The outlet of the blower 3 is connected to the mixed gas inlet 131. The blower 3 inputs the mixed gas into the gas distribution chamber 16 through the mixed gas inlet 131. The blower 3 premixes the fuel gas and air to form a mixed gas and delivers it to the gas distribution chamber 16. The combustion device can be a fully premixed combustion device. The blower 3 can also be connected to a control unit, which controls the output power of the blower 3.

[0068] This utility model provides a gas-fired heating furnace, including the combustion device of this utility model embodiment.

[0069] The gas-fired heating furnace of this utility model embodiment includes a wall-mounted heating furnace.

[0070] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0071] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0072] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combustion device, characterized in that, include: The burner (1) includes a gas distribution chamber (16), a first gas distribution chamber (14), and a second gas distribution chamber (15). The gas distribution chamber (16) is provided with a mixed gas inlet (131), a first gas distribution port (111), and a second gas distribution port (112). The gas distribution chamber (16) is connected to the first gas distribution chamber (14) through the first gas distribution port (111), and the gas distribution chamber (16) is connected to the second gas distribution chamber (15) through the second gas distribution port (112). The surface of the burner (1) is provided with a plurality of first flame holes connected to the first gas distribution chamber (14), and the surface of the burner (1) is also provided with second flame holes connected to the second gas distribution chamber (15). A distribution component (2) is movably disposed in the gas distribution chamber (16), and the distribution component (2) is used to adjust the opening degree of the first gas distribution port (111) and the second gas distribution port (112).

2. The combustion device according to claim 1, characterized in that, The burner (1) includes: The base (11) includes a first surface and a second surface opposite to each other. The first air distribution chamber (14) and the second air distribution chamber (15) are located on one side of the first surface, and the air distribution chamber (16) is located on one side of the second surface. The first air distribution port (111) and the second air distribution port (112) are opened on the base (11).

3. The combustion device according to claim 2, characterized in that, The allocation component (2) includes: An adjusting plate (21) is disposed within the air distribution chamber (16). The adjusting plate (21) is rotatably connected to the base (11). The adjusting plate (21) rotates to adjust the opening degree of the first air distribution port (111) and the second air distribution port (112). In the first position, the adjusting plate (21) completely closes the first air distribution port (111) and completely opens the second air distribution port (112). In the second position, the adjusting plate (21) completely closes the second air distribution port (112) and completely opens the first air distribution port (111). In the third position, the adjusting plate (21) fully opens the first air distribution port (111) and the second air distribution port (112).

4. The combustion device according to claim 3, characterized in that, The allocation component (2) includes: A drive assembly is connected to the adjustment plate (21) for driving the adjustment plate (21) to rotate.

5. The combustion device according to claim 4, characterized in that, The driving component includes: A gear component (22) is rotatably connected to the base (11). The gear component (22) has a first tooth and the adjusting plate (21) has a second tooth. The first tooth meshes with the second tooth. The drive shaft (23) is located on the side of the air distribution chamber (16) away from the base (11). The drive shaft (23) extends into the air distribution chamber (16) and is connected to the gear component (22) for driving the gear component (22) to rotate.

6. The combustion device according to claim 4, characterized in that, The first air distribution port (111) and the second air distribution port (112) are respectively fan-shaped; The adjusting plate (21) includes a blocking part and a transmission part. The blocking part is used to close the first air distribution port (111) and the second air distribution port (112). The blocking part is fan-shaped. The transmission part is used to drive the drive assembly.

7. The combustion device according to claim 2, characterized in that, The burner (1) includes: The first end cap (12) is connected to the first surface of the base (11). The first end cap (12) and / or one side of the first surface has a gas distribution groove. The first end cap (12) is connected to the base (11) to form the gas distribution groove into a first gas distribution chamber (14) and a second gas distribution chamber (15) that are independent of each other. The first flame hole and the second flame hole are provided on the first end cap (12).

8. The combustion device according to claim 2, characterized in that, The burner (1) includes: The second end cap (13) is connected to the second surface of the base (11). The second end cap (13) and / or one side of the second surface has a cavity. The second end cap (13) is connected to the base (11) to enclose the cavity to form the gas distribution chamber (16). The mixed gas inlet (131) is provided on the second end cap (13).

9. The combustion device according to claim 1, characterized in that, Also includes: A blower (3) is connected to the burner (1), and the outlet of the blower (3) is connected to the mixed gas inlet (131).

10. The combustion device according to claim 1, characterized in that, The total combustion area of ​​the first burner hole is different from that of the second burner hole.

11. A gas-fired heating boiler, characterized in that, Includes the combustion device according to any one of claims 1-10.

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