Combustion assembly and gas water heater with same

Abstract

The utility model relates to the technical field of water heaters, in particular to a combustion assembly and a gas water heater with the same, and the combustion assembly comprises a combustor and an exhaust fume collecting hood with an exhaust fume collecting cavity; a smoke outlet of the combustor is communicated with a smoke inlet of the smoke collecting cavity through a smoke exhaust channel; the smoke collecting hood is provided with a smoke exhaust port and a backflow port which are communicated with the smoke collecting cavity; the reflux inlet is communicated with a reflux pipe which is configured to guide flue gas in the reflux inlet to a gas inlet of the combustor; and the return pipe is provided with a return fan with adjustable rotating speed, and the return fan is configured to provide power for driving the flue gas in the return pipe to flow from the return port to the gas inlet. Therefore, the combustion assembly capable of regulating and controlling the smoke backflow amount is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, and more particularly to a combustion component and a gas water heater having the component. Background Art

[0002] In the current market, "high energy efficiency" and "low environmental impact" have become the focus of consumers. Based on this, gas water heaters with flue gas recirculation have emerged in the existing technology. This is achieved by improving the combustion components in gas water heaters so that some of the flue gas generated by combustion can be recirculated and re-enter the combustion process.

[0003] The combustion assembly with flue gas recirculation in the existing gas water heater mainly diverts part of the flue gas generated by the combustion of the combustion assembly to the air inlet of the burner in the combustion assembly by setting a recirculation piece or a recirculation pipe, so that this part of the recirculated flue gas and fresh air enter the burner together to participate in the combustion, thereby improving the combustion efficiency and realizing the effective reuse of part of the flue gas.

[0004] It should be noted that the existing combustion components with flue gas recirculation are often unable to control the recirculation volume of flue gas. When the combustion component is placed in different environments (for example, when placed in different users' homes, the smoke exhaust resistance it faces is different) to work, it is easy to directly cause the recirculation volume of flue gas to be too high or too low, thereby affecting the combustion efficiency and making it impossible to carry out combustion work more efficiently and stably. Utility Model Content

[0005] One of the purposes of the present invention is to address the deficiencies of the prior art and provide a combustion assembly capable of regulating the amount of flue gas recirculation, so as to perform combustion more efficiently and stably under different environments.

[0006] The second purpose of the present utility model is to provide a gas water heater having the above combustion assembly.

[0007] The technical solutions of this utility model are as follows:

[0008] Combustion assembly, including:

[0009] A burner, a smoke collecting hood having a smoke collecting cavity;

[0010] The smoke outlet of the burner is connected to the smoke inlet of the smoke collecting chamber through a smoke exhaust channel, and the smoke collecting hood is provided with: a smoke exhaust port and a return port connected to the smoke collecting chamber;

[0011] The return port is connected to a return pipe, which is configured to: guide the flue gas in the return port to the air inlet of the burner;

[0012] The return duct is provided with a return fan with adjustable speed, which is configured to provide power to the smoke in the return duct to drive it to flow from the return port to the air inlet.

[0013] As a further preferred embodiment, the return fan includes:

[0014] an impeller placed in the return pipe;

[0015] A driving member is connected to the impeller and used to drive the impeller to rotate. The driving member is placed outside the return pipe.

[0016] As a further preferred solution, the return pipe includes a first return pipe body, a second return pipe body, and a connecting pipe body connecting the first return pipe body and the second return pipe body;

[0017] The connecting pipe body is detachably arranged between the first return pipe body and the second return pipe body, and the return fan is fixedly connected to the connecting pipe body.

[0018] As a further preferred solution, the burner is provided with: an air intake cover for covering the air intake;

[0019] The air intake cover is provided with an air intake groove, and the notch of the air intake groove is connected to the air intake port;

[0020] The air intake cover is provided with: a second air intake port connected to the air intake slot, and a first air intake port connected to the air intake slot and for air to enter;

[0021] One end of the return pipe away from the return port is connected to the second air inlet and is communicated with the air inlet groove through the second air inlet.

[0022] As a further preferred solution, the second air inlet is provided on: a side wall of the air inlet groove that is not opposite to the air inlet;

[0023] And / or, the first air inlet is arranged on a side wall of the air inlet groove that is not opposite to the air inlet.

[0024] As a further preferred solution, the second air inlet and the first air inlet are arranged in a non-aligned manner.

[0025] As a further preferred solution, a flow stabilizer is installed in the air inlet groove, which divides the air inlet groove into: a first groove body close to and connected to the air inlet, and a second groove body away from the air inlet;

[0026] The second air inlet and the first air inlet are both arranged on the groove wall of the second groove body;

[0027] The flow stabilizing plate is provided with a plurality of air inlet holes for supplying air flow from the second trough body to the first trough body.

[0028] As a further preferred solution, both ends of the flow stabilizer plate have: an abutment portion protruding toward the bottom surface of the air inlet groove;

[0029] The abutment portion is arranged to match the bottom surface and the notch of the air inlet groove so that:

[0030] When the notch of the air inlet groove faces upward, the two abutting portions are abutted against the bottom surface of the air inlet groove, so that the flow stabilizer is placed in the air inlet groove in a horizontal state.

[0031] As a further preferred solution, a plurality of air inlet holes are evenly distributed on the flow stabilizing plate.

[0032] A gas water heater comprises the combustion assembly described in any of the above solutions.

[0033] The main beneficial effects of the above technical solution are:

[0034] A return fan with adjustable speed is provided in the return pipe. By changing the speed of the return fan, the amount of flue gas directed from the smoke collecting chamber to the return port (i.e., the flue gas return amount) can be changed; the flue gas return amount can be adaptively regulated according to different environmental requirements, so that the combustion component can perform combustion work more efficiently and stably with a suitable flue gas return amount in any environment.

[0035] Further or more detailed beneficial effects will be described in conjunction with specific examples in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below with reference to the accompanying drawings:

[0037] Figure 1 Schematic diagram of the overall structure of the combustion group.

[0038] Figure 2 This is a schematic diagram of the installation of the air intake cover.

[0039] Figure 3 This is a schematic diagram of the flow stabilizer installation.

[0040] Figure 4 Schematic diagram of the return pipe structure.

[0041] Figure shows: burner 1, smoke outlet 1.1, air inlet 1.2, air inlet hood 1a, air inlet slot 1a.1, first slot 1a.11, second slot 1a.12, second air inlet 1a.2, first air inlet 1a.3, flow stabilizer 1b, air inlet hole 1b.1, abutment 1b.2, smoke hood 2, smoke hood body 2a, first smoke collection chamber 2a. 1. Smoke exhaust pipe 2b, second smoke collection chamber 2b.1, smoke collection chamber 2.1, smoke inlet 2.11, smoke exhaust port 2.12, return port 2.13, heat exchanger 3, smoke exhaust duct 3.1, return pipe 4, first return pipe body 4.1, second return pipe body 4.2, connecting pipe body 4.3, return fan 9, impeller 9.1, drive element 9.2, fan 10. DETAILED DESCRIPTION

[0042] The present invention is described in detail below with reference to the following embodiments:

[0043] Example 1:

[0044] The combustion component is mainly used in a gas water heater or a heating device similar to a gas water heater to burn gas to generate high-temperature flue gas.

[0045] As attached Figure 1 To the attached Figure 4 As shown in the figure, the combustion assembly mainly includes a burner 1 for receiving gas and igniting the gas, a smoke hood 2 for receiving high-temperature flue gas and discharging the high-temperature flue gas, and a smoke exhaust channel 3.1 for transmitting the high-temperature flue gas generated by the burner 1 to the smoke hood 2.

[0046] In this embodiment, as shown in the attached Figure 1 As shown, the bottom of the burner 1 has an air inlet 1.2 for air entry, a gas inlet for gas entry on the side of the burner 1, and a smoke exhaust port 2.12 for flue gas exiting. The air inlet 1.2 is connected to the smoke exhaust port 2.12 via an air flow channel within the burner 1, and the gas inlet is connected to the smoke exhaust port 2.12 via a gas flow channel within the burner 1. An ignition device is provided at the smoke exhaust port 2.12. When air enters the air inlet 1.2 and flows to the smoke exhaust port 2.12, and when gas enters the gas inlet and flows to the smoke exhaust port 2.12, the ignition device ignites the gas, causing it to burn and form high-temperature flue gas, which is then discharged upward from the smoke exhaust port 2.12.

[0047] A smoke hood 2 is positioned above the burner 1. A smoke chamber 2.1 is formed hollow within the hood 2. A smoke inlet 2.11 is provided at the bottom of the hood 2, communicating with the smoke chamber 2.1 for admitting smoke into the chamber 2.1. The smoke inlet 2.11 is preferably aligned with a smoke exhaust port 2.12. Furthermore, a smoke exhaust port 2.12 is provided on the hood 2, communicating with the smoke chamber 2.1 for discharging smoke from the chamber 2.1.

[0048] The lower end of the smoke exhaust channel 3.1 is connected to and communicates with the smoke exhaust port 2.12 of the burner 1, and the upper end is connected to and communicates with the smoke inlet 2.11 of the smoke hood 2. This allows smoke generated by the burner 1 to flow upward through the smoke exhaust channel 3.1 into the smoke collection chamber 2.1 and be discharged outward through the smoke exhaust port 2.12. When the combustion assembly is used in a gas water heater, a heat exchanger 3 is disposed between the burner 1 and the smoke hood 2. The smoke exhaust channel 3.1 is a channel structure formed within the heat exchanger 3 for the flow of smoke.

[0049] Furthermore, in order to be able to reflux part of the flue gas for reuse to improve combustion efficiency.

[0050] In this embodiment, as shown in the attached Figure 1 As shown in FIG, a return port 2.13 is further provided on the smoke collecting hood 2. The return port 2.13 is connected to a return pipe 4, which is configured to guide the smoke in the return port 2.13 to the air inlet 1.2 of the burner 1.

[0051] That is, one end of the return pipe 4 is connected to and in communication with the return port 2.13, while the other end is positioned near, and preferably aligned with, the air inlet 1.2 of the burner 1. This ensures that, after the smoke enters the smoke collecting chamber 2.1 as described above, some of the smoke can flow from the return port 2.13 through the return pipe 4 to the air inlet 1.2. At this point, air enters the burner 1 from the air inlet 1.2, and the returned smoke also enters the burner 1 from the air inlet 1.2. When the smoke reaches the air inlet 1.2, it mixes with fresh air and enters the burner 1 for combustion, thereby achieving smoke recirculation and reuse, and improving overall combustion efficiency.

[0052] Furthermore, in order to allow air to enter the burner 1 better and smoke to be discharged more quickly, the combustion assembly may also be provided with a fan 10 configured to introduce external air into the air inlet 1.2 of the burner 1 and drive the smoke to be discharged from the smoke outlet 2.12.

[0053] In this embodiment, the smoke exhaust channel 3.1, the first smoke collecting chamber 2a.1 and the second smoke collecting chamber 2b.1 together form a smoke flow passage for smoke to circulate; the fan 10 can be arranged in the smoke flow passage. Alternatively, as shown in the attached Figure 1 As shown in FIG, the fan 10 is preferably disposed at the air inlet 1.2, and is configured to blow external air into the burner 1 through the air inlet 1.2.

[0054] However, the recirculation rate of the flue gas of the above-mentioned combustion assembly cannot be regulated. When the combustion assembly is placed in different environments (for example, when placed in different users' homes, the smoke exhaust resistance it faces is different) to operate, it is easy to directly cause the recirculation rate of the flue gas to be too high or too low, thereby affecting the combustion efficiency and making it impossible to carry out combustion work more efficiently and stably.

[0055] Based on this, as attached Figure 1 As shown in FIG, in this embodiment, a return fan 9 may be further provided in the return duct 4, which is configured to provide power to the smoke in the return duct 4 to drive it to flow from the return port 2.13 to the air inlet 1.2.

[0056] Specifically, in this embodiment, the return fan 9 includes: an impeller 9.1 placed in the return duct 4; and a driving member 9.2 (the driving member 9.2 is preferably a rotating motor that drives the impeller 9.1 to rotate), and the driving member 9.2 is transmission-connected to the impeller 9.1 and is used to drive the impeller 9.1 to rotate.

[0057] The driving member 9.2 can be electrically connected to the control mainboard of the combustion assembly. When the combustion assembly is performing combustion operation, the control mainboard synchronously controls the driving member 9.2 to start, thereby driving the impeller 9.1 to rotate, providing continuous and stable power to the flue gas in the return pipe 4, driving it to flow from the return port 2.13 to the air inlet 1.2.

[0058] Of course, the driving member 9.2 can also be configured to increase the speed of the impeller 9.1 as the combustion temperature set by the control main board increases, so as to better adapt to the different combustion conditions of the combustion components and ensure that the flue gas can always flow stably and smoothly in the return pipe 4.

[0059] In order to avoid the erosion of the driving member 9.2 by the smoke, the driving member 9.2 is preferably placed outside the return pipe 4. Figure 4 As shown in FIG, the driving member 9.2 is fixed to the outer wall of the return pipe 4, and the rotating shaft of the impeller 9.1 passes through the return pipe 4 and is in driving connection with the driving member 9.2. The driving member 9.2 can drive the impeller 9.1 to rotate, thereby driving the flue gas in the return pipe 4 to flow from the return port 2.13 to the air inlet 1.2.

[0060] Furthermore, in order to facilitate the overall maintenance or replacement of the return fan 9, in this embodiment, as shown in the attached Figure 4 As shown in the figure, the return pipe 4 includes a first return pipe body 4.1, a second return pipe body 4.2, and a connecting pipe body 4.3 that connects the first return pipe body 4.1 and the second return pipe body 4.2; the connecting pipe body 4.3 adopts a detachable connection method commonly used in pipes, such as plug-in connection and screw connection, to be detachably arranged between the first return pipe body 4.1 and the second return pipe body 4.2, and the return fan 9 is fixedly connected to the connecting pipe body 4.3.

[0061] On the basis of the above scheme, as attached Figure 2 To the attached Figure 3 As shown in , in this embodiment, an air intake cover 1a can also be provided on the burner 1. The air intake cover 1a is preferably detachably fixed to the burner 1 by, for example, screws, and when the air intake cover 1a is fixed to the burner 1, it covers the air inlet 1.2.

[0062] As attached Figure 2As shown in the figure, the air intake cover 1a is also provided with: an air intake groove 1a.1 with an opening facing the air intake port 1.2 and connected to the air intake port 1.2; when the air intake cover 1a is fixed to the burner 1, the air intake port 1.2 is docked with the notch of the air intake groove 1a.1 to achieve the connection between the air intake port 1.2 and the air intake groove 1a.1.

[0063] As attached Figure 2 To the attached Figure 3 As shown, the air intake cover 1a is provided with a second air intake port 1a.2 communicating with the air intake groove 1a.1, and a first air intake port 1a.3 communicating with the air intake groove 1a.1 for air to enter. The end of the return pipe 4, remote from the return port 2.13, is connected to the second air intake port 1a.2 and communicates with the air intake groove 1a.1 through the second air intake port 1a.2.

[0064] At this time, the first air inlet 1a.3 serves as the air inlet for external air. The fan 10 is preferably arranged at the first air inlet 1a.3 and is configured to: blow the external air from the first air inlet 1a.3 into the air inlet groove 1a.1, and then enter the air inlet 1.2 through the air inlet groove 1a.1.

[0065] Implementation: Fresh air and flue gas returning from the return pipe 4 can be pre-mixed in the air inlet groove 1a.1, and then enter the burner 1 together from the air inlet 1.2 for combustion, so as to better improve the combustion effect.

[0066] To better mix the fresh air and the flue gas returning from the return pipe 4 in the air inlet slot 1a.1, thereby improving mixing uniformity and enhancing combustion efficiency, in this embodiment, the first air inlet 1a.3 is preferably located on a sidewall of the air inlet slot 1a.1 that is not opposite the air inlet 1.2; and the second air inlet 1a.2 may also be preferably located on a sidewall of the air inlet slot 1a.1 that is not opposite the air inlet 1.2.

[0067] In this way, neither air nor returned flue gas flows into the air inlet groove 1a.1 toward the air inlet port 1.2, but flows into the air inlet groove 1a.1 from the side wall of the air inlet groove 1a.1. After the gas flows in, it collides with the inner wall of the air inlet groove 1a.1 to slow down the flow rate, so that the fresh air and the returned flue gas have more time to mix.

[0068] Furthermore, the second air inlet 1a.2 and the first air inlet 1a.3 are preferably arranged in a non-aligned manner, which can better prevent fresh air from obstructing the return flue gas from flowing into the air inlet slot 1a.1, or the return flue gas from obstructing the fresh air from flowing into the air inlet slot 1a.1.

[0069] Furthermore, as attached Figure 2 To the attached Figure 3A flow stabilizer plate 1b can also be installed in the air inlet trough 1a.1, dividing the air inlet trough 1a.1 into a first trough body 1a.11 adjacent to and connected to the air inlet 1.2, and a second trough body 1a.12 further away from the air inlet 1.2. The second air inlet 1a.2 and the first air inlet 1a.3 are both located on the wall of the second trough body 1a.12. The flow stabilizer plate 1b is provided with a plurality of air inlet holes 1b.1 for airflow from the second trough body 1a.12 to the first trough body 1a.11.

[0070] At this time, whether it is the fresh air entering the second trough body 1a.12 from the first air inlet 1a.3 or the return flue gas entering the second trough body 1a.12 from the second air inlet 1a.2, under the flow resistance of the flow stabilizer 1b, they will tend to diffuse in the second trough body 1a.12 to fill the second trough body 1a.12; in this way, the diffused fresh air and return flue gas can be mixed faster and more evenly; moreover, the gas in the second trough body 1a.12 enters the first trough body 1a.11 through several air inlet holes 1b.1. During the flow process, the fresh air and return flue gas will be dispersed and flow into the first trough body 1a.11, and better secondary mixing will be achieved in the first trough body 1a.11, further improving the mixing effect.

[0071] In this embodiment, a plurality of air inlet holes 1b.1 are evenly distributed on the flow stabilizer 1b. In this way, on the one hand, the mixed gas can flow evenly to the first trough body 1a.11 through the plurality of air inlet holes 1b.1, and evenly flow to the air inlet 1.2 through the first trough body 1a.11 to participate in the combustion, thereby improving the uniformity of combustion; on the other hand, the fresh air and the return flue gas can be more evenly dispersed, and then can be more evenly mixed for the second time in the first trough body 1a.11, thereby improving the uniformity of mixing and thereby improving the uniformity and stability of subsequent combustion.

[0072] On the basis of the above, as attached Figure 3 As shown, both ends of the flow stabilizer 1b have: an abutment portion 1b.2 that protrudes toward the bottom surface of the air inlet groove 1a.1; the abutment portion 1b.2 is arranged to match the bottom surface and the slot opening of the air inlet groove 1a.1, so that: when the slot opening of the air inlet groove 1a.1 faces upward, the flow stabilizer 1b is placed in the air inlet groove 1a.1 in a horizontal state (that is, the upper surface of the flow stabilizer 1b is horizontal or nearly horizontal) by abutting both abutment portions 1b.2 against the bottom surface of the air inlet groove 1a.1.

[0073] In this way, not only can the stability of the installation of the flow stabilizer 1b be improved; but also when the flow stabilizer 1b is installed in the air inlet groove 1a.1, the openings of the several air inlet holes 1b.1 on the flow stabilizer 1b can be arranged opposite to the slot of the air inlet groove 1a.1, and the air flow can enter the first slot body 1a.11 and enter the air inlet 1.2 more evenly from the second slot body 1a.12.

[0074] Furthermore, the flow stabilizer plate 1b can be detachably fixed to the air intake cover 1a by means of fasteners such as screws, which not only improves the stability of the flow stabilizer plate 1b but also makes the flow stabilizer plate 1b easy to remove and replace.

[0075] Moreover, the edge of the flow stabilizing plate 1b can be bent to form a flange structure to improve the structural strength of the flow stabilizing plate 1b so that it can withstand the impact of fresh air and return flue gas.

[0076] Example 2:

[0077] A gas water heater comprises a water heater shell, a water supply pipeline for circulating water, and a combustion assembly as described in any one of the schemes in the first embodiment.

[0078] The combustion assembly is placed in the water heater housing, and a portion of the water supply pipe is connected to the side wall of the smoke exhaust channel 3.1, or a portion of the water supply pipe is inserted into the smoke exhaust channel 3.1.

[0079] The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Furthermore, the terms "vertical," "horizontal," "front," and "rear" used in the embodiments of the present invention to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or are typically placed in the orientations or positional relationships of the product when in use. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be further noted that, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can refer to fixed connections, removable connections, or integral connections; direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the following embodiments.

[0080] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A combustion assembly, characterized in that include: A burner (1), a smoke collecting hood (2) having a smoke collecting chamber (2.1); The smoke outlet (1.1) of the burner (1) is connected to the smoke inlet (2.11) of the smoke collecting chamber (2.1) via a smoke exhaust channel (3.1), and the smoke collecting hood (2) is provided with: a smoke exhaust port (2.12) and a return port (2.13) connected to the smoke collecting chamber (2.1); The return port (2.13) is connected to a return pipe (4), which is configured to: guide the flue gas in the return port (2.13) to the air inlet (1.2) of the burner (1); The return pipe (4) is provided with a return fan (9) with adjustable speed, which is configured to provide power to the smoke in the return pipe (4) to drive it to flow from the return port (2.13) to the air inlet (1.2).

2. The combustion assembly according to claim 1, characterized in that: The return fan (9) comprises: an impeller (9.1) placed in the return pipe (4); A driving member (9.2) is connected to the impeller (9.1) and is used to drive the impeller (9.1) to rotate. The driving member (9.2) is placed outside the return pipe (4).

3. The combustion assembly according to claim 1, characterized in that: The return pipe (4) comprises a first return pipe body (4.1), a second return pipe body (4.2), and a connecting pipe body (4.3) for connecting the first return pipe body (4.1) and the second return pipe body (4.2); The connecting pipe body (4.3) is detachably arranged between the first return pipe body (4.1) and the second return pipe body (4.2), and the return fan (9) is fixedly connected to the connecting pipe body (4.3).

4. The combustion assembly according to any one of claims 1 to 3, characterized in that: The burner (1) is provided with: an air intake cover (1a) for covering the air intake port (1.2); The air intake cover (1a) is provided with an air intake groove (1a.1), and the notch of the air intake groove (1a.1) is connected to the air intake port (1.2); The air intake cover (1a) is provided with: a second air intake (1a.2) connected to the air intake groove (1a.1), and a first air intake (1a.3) connected to the air intake groove (1a.1) and for air to enter; One end of the reflux pipe (4) away from the reflux port (2.13) is connected to the second air inlet (1a.2) and is connected to the air inlet groove (1a.1) through the second air inlet (1a.2).

5. The combustion assembly according to claim 4, characterized in that: The second air inlet (1a.2) is arranged on: a side wall of the air inlet groove (1a.1) that is not opposite to the air inlet (1.2); And / or, the first air inlet (1a.3) is arranged on a side wall of the air inlet groove (1a.1) that is not opposite to the air inlet (1.2).

6. The combustion assembly according to claim 5, characterized in that: The second air inlet (1a.2) and the first air inlet (1a.3) are arranged in a non-aligned manner.

7. The combustion assembly according to claim 4, characterized in that: A flow stabilizing plate (1b) is installed in the air inlet groove (1a.1), which divides the air inlet groove (1a.1) into: a first groove body (1a.11) close to and connected to the air inlet (1.2), and a second groove body (1a.12) away from the air inlet (1.2); The second air inlet (1a.2) and the first air inlet (1a.3) are both arranged on the groove wall of the second groove body (1a.12); Furthermore, the flow stabilizing plate (1b) is provided with a plurality of air inlet holes (1b.1) for allowing air to flow from the second trough body (1a.12) to the first trough body (1a.11).

8. The combustion assembly according to claim 7, characterized in that: Both ends of the flow stabilizing plate (1b) have: an abutment portion (1b.2) protruding toward the bottom surface of the air inlet groove (1a.1); The abutment portion (1b.2) is arranged to match the bottom surface and the slot opening of the air inlet slot (1a.1) so that: When the notch of the air inlet groove (1a.1) faces upward, the two abutting portions (1b.2) are abutted against the bottom surface of the air inlet groove (1a.1), so that the flow stabilizing plate (1b) is placed in the air inlet groove (1a.1) in a horizontal state.

9. The combustion assembly according to claim 7, characterized in that: The plurality of air inlet holes (1b.1) are evenly distributed on the flow stabilizing plate (1b).

10. Gas water heater, characterized by: The combustion assembly comprises any one of claims 1 to 9.

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