Gas distribution assembly and gas water heater

Abstract

The utility model discloses a gas distribution component and gas water heater relates to gas water heater technical field, wherein the gas distribution component includes casing, cover plate and sealing element, casing has cavity, one side of said cavity is provided with the opening, the inside of said cavity is provided with the separation part, said separation part extends along the cavity wall of said cavity towards the direction of said opening, and said sealing element is provided with the sealing element. The cavity is divided into a distribution groove and a plurality of circulation grooves, and the circulation grooves are connected with the distribution groove through at least one control valve in an on-off mode; the cover plate is detachably mounted on the shell and covers the opening; the sealing piece is arranged between the shell and the cover plate so as to seal a gap between the cover plate and the shell; according to the technical scheme provided by the utility model, the manufacturing of the gas distribution assembly is facilitated, the sealing surfaces of the gas distribution assembly are reduced, and the assembly of the gas distribution assembly is simplified.

Description

Technical Field

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

[0002] With the improvement of living standards and the gradual improvement of gas supply facilities, domestic fast gas water heaters have gradually become popular, and providing a comfortable and safe bathing environment for consumers has attracted more and more attention from the industry.

[0003] The heat load of the existing gas water heater can be adjusted by the gas distribution component (gas distribution structure) combined with the burner to adjust the number of combustion fire rows, so as to achieve the function of increasing the load adjustment range. However, at present, the gas distribution component has problems of many sealing surfaces and complex assembly during assembly. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a gas distribution component and a gas water heater, aiming to improve the problems of many sealing surfaces and complex assembly existing in the gas distribution component in the prior art.

[0005] To achieve the above purpose, a gas distribution component proposed by the utility model includes:

[0006] A housing having a cavity, one side of the cavity is open, a partition portion is provided in the cavity, and the partition portion extends along the cavity wall of the cavity towards the opening direction to divide the cavity into a distribution groove and a plurality of flow grooves, and the plurality of flow grooves are connected to and disconnected from the distribution groove through at least one control valve;

[0007] A cover plate detachably mounted on the housing and covering the opening; and

[0008] A sealing member provided between the housing and the cover plate to seal the gap between the cover plate and the housing.

[0009] In one embodiment, the distribution groove has a first cross-section intercepted along a direction perpendicular to the gas flow direction, the bottom side and the side of the first cross-section are straight, and the included angle formed by the bottom side and the side is greater than or equal to 90°;

[0010] And / or, the flow groove has a second cross-section intercepted along a direction perpendicular to the gas flow direction, the bottom side and the side of the second cross-section are straight, and the included angle formed by the bottom side and the side is greater than or equal to 90°.

[0011] In one embodiment, the partition portion includes a first partition, a second partition, and a third partition. The first partition is connected to one inner wall of the housing and encloses to form a first flow channel. The third partition is connected to the other inner wall of the housing and encloses to form a second flow channel. The second partition is disposed between the first partition and the third partition. The wall surface of the first partition away from one inner wall of the housing, the wall surface of the third partition away from the other inner wall of the housing, and the second partition are connected and enclose to form a third gas flow channel.

[0012] In one embodiment, the first partition is vertically disposed on the cavity bottom along the direction from the cavity bottom to the opening of the cavity; and / or

[0013] The second partition is vertically disposed on the cavity bottom along the direction from the cavity bottom to the opening of the cavity; and / or

[0014] The third partition is vertically disposed on the cavity bottom along the direction from the cavity bottom to the opening of the cavity.

[0015] In one embodiment, mounting holes are formed in the first partition and the third partition, and the mounting holes are used for mounting the cover plate and the seal.

[0016] In one embodiment, the first flow channel includes a first flow section and a second flow section that are connected in communication. The first flow section and the second flow section are arranged at an angle, and the width of the second flow section is tapered along the direction away from the first flow section.

[0017] In one embodiment, the partition portion and the housing are integrally formed.

[0018] In one embodiment, the gas distribution assembly is further provided with an air inlet communicating with the distribution groove. An air inlet pipe is communicated with the air inlet. A plug-in portion is arranged inside the air inlet pipe, and the diameter of the plug-in portion is smaller than the diameter of the air inlet pipe.

[0019] In one embodiment, the plug-in portion is inclined, and the caliber of the plug-in portion is tapered along the air inlet direction of the air inlet pipe.

[0020] In one embodiment, the gas distribution assembly further includes a plurality of communication portions. The plurality of communication portions are disposed on the side of the housing away from the opening. Each communication portion is used to communicate each flow channel with the distribution groove;

[0021] A plurality of control valves are provided. Each control valve is detachably mounted on each communication portion, and each control valve can control the on-off of each flow channel and the distribution groove.

[0022] In one embodiment, the partition portion is located on the communication portion, and the partition portion divides the communication portion to form an air supply port of the distribution groove and a communication port of the flow groove.

[0023] In one embodiment, the gas distribution assembly is further provided with an air outlet communicated with each of the flow grooves, and a nozzle is detachably provided on the air outlet.

[0024] The present utility model also provides a gas water heater, including the gas distribution assembly as described in the above embodiment.

[0025] The gas distribution assembly in the technical solution of the present utility model is composed of a shell, a cover plate and a sealing member connected in combination, and the shell is provided with an open cavity. A partition portion is further provided in the cavity, and the partition portion extends along the cavity wall in the direction towards the opening. The partition portion can divide the cavity into a distribution groove and a plurality of flow grooves. The shell arranged in this way is more convenient for demolding during manufacturing, and the shell arranged in this way has only one sealing surface, and the sealing connection can be realized by detachably connecting with the cover plate and the sealing member, and the purpose of simplifying the assembly can also be achieved in this way. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0027] Figure 1 It is a schematic structural diagram of an embodiment of the gas distribution assembly provided by the present utility model;

[0028] Figure 2 It is Figure 1 the exploded structural diagram of the gas distribution assembly in

[0029] Figure 3 It is a schematic structural diagram of the shell provided by the present utility model;

[0030] Figure 4 It is Figure 3 the sectional structural diagram of A-A in

[0031] Figure 5 It is a schematic structural diagram of the shell provided by the present utility model.

[0032] Explanation of the Reference Numerals in the Drawings:

[0033] 100. Gas distribution component; 110. Housing; 111. Air inlet; 112. Cavity; 1121. Partition part; 11211. First partition board; 11212. Second partition board; 11213. Third partition board; 1122. Distribution groove; 11221. Air supply port; 1123. Flow groove; 11231. Communication port; 1123a. First flow groove; L1. Side edge; L2. Bottom edge; 1123b. Second flow groove; 1123c. Third flow groove; 113. Air outlet; 120. Cover plate; 130. Sealing member; 140. Control valve; 150. Nozzle; 160. Communication part; 170. Air inlet pipe; 171. Insertion part.

[0034] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0036] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0038] The thermal load of existing gas water heaters can be adjusted by the gas distribution component (gas distribution structure) combined with the burner to regulate the number of combustion fire rows, so as to achieve the function of increasing the load adjustment range. However, there are various structural forms of the gas distribution component at present. There is a core-pulling structure made of die-cast aluminum, and there is also a welded structure made of iron square pipes. When using the die-cast aluminum core-pulling structure, due to the large structural resistance at the core-pulling intersection, and if the core-pulling is long, due to the influence of the draft angle, there will be problems such as large aperture change, small channel, and uneven pressure distribution, which are not suitable for large-load products. Some competitors use multiple channels separated by a large distance to ensure uniformity, but this will bring problems of multiple seals with sheet metal parts. The die-cast aluminum core-pulling method not only has many sealing surfaces, but also has a complex assembly. When using the welding method, there are disadvantages such as high cost, slow welding processing resulting in low output, and complex anti-corrosion process. Therefore, the gas distribution component cast by the die-cast aluminum core-pulling method in the prior art has difficulties in core-pulling, many sealing surfaces, and complex assembly problems during assembly.

[0039] The present utility model proposes a gas distribution component.

[0040] Please refer to Figures 1 to 5 , in an embodiment of the present utility model, the gas distribution component 100 includes a housing 110, a cover plate 120, and a seal 130. The housing 110 has a cavity 112, one side of the cavity 112 is open, a partition portion 1121 is provided in the cavity 112, and the partition portion 1121 extends along the cavity wall of the cavity 112 towards the opening direction to divide the cavity 112 into a distribution groove 1122 and a plurality of flow grooves 1123. The plurality of flow grooves 1123 are connected to and disconnected from the distribution groove 1122 through at least one control valve 140; the cover plate 120 is detachably mounted on the housing 110 and covers the opening; and

[0041] The seal 130 is provided between the housing 110 and the cover plate 120 to seal the gap between the cover plate 120 and the housing 110;

[0042] In the technical solution of the present utility model, the gas distribution component 100 includes a housing 110, a cover plate 120 and a seal 130. Among them, the housing 110 forms an open cavity 112, and a partition 1121 is arranged in the cavity 112. The partition 1121 extends along the cavity wall of the cavity 112 towards the opening direction. The partition 1121 can extend from the side wall or the bottom of the cavity 112 towards the opening direction, and the partition 1121 divides the cavity 112 into a distribution groove 1122 and a plurality of flow grooves 1123. The plurality of flow grooves 1123 are connected to the distribution groove 1122 in a normally open or closed manner through at least one control valve 140. The plurality of flow grooves 1123 can be respectively connected to the distribution groove 1122 in a normally open or closed manner through one or more control valves 140. The control valve 140 can control the plurality of flow grooves 1123 to be respectively communicated with the distribution groove 1122 and control the size of the gas flow after communication. The cover plate 120 is detachably arranged on the housing 110, and the cover plate 120 is used to cover the opening of the cavity 112 so that the cavity 112 forms a chamber after being covered. In this embodiment, the cover plate 120 and the housing 110 are connected by passing a fastener through. That is, through holes for threaded connection of the fastener are provided on the housing 110, and holes for partial penetration of the fastener are provided on the cover plate 120. Of course, in other embodiments, the cover plate 120 and the housing 110 can also be fixed by a snap connection structure or a plug connection structure. In this regard, no more limitations are made. In this embodiment, the gas distribution component 100 is combined and connected by the housing 110, the cover plate 120 and the seal 130. The housing 110 is provided with an open cavity 112, and a partition 1121 is also arranged in the cavity 112. The partition 1121 extends along the cavity wall of the cavity 112 towards the opening direction. The partition 1121 can divide the cavity 112 into a distribution groove 1122 and a plurality of flow grooves 1123. The housing 110 arranged in this way is more convenient for demoulding during manufacturing. And the housing 110 arranged in this way has only one sealing surface, and this sealing surface can achieve sealed connection through detachable connection with the cover plate 120 and the seal 130. In this way, the purpose of simplifying the assembly can also be achieved.

[0043] To further ensure the sealing performance of the chamber, in this embodiment, a seal 130 is also provided. The seal 130 is disposed between the housing 110 and the cover plate 120. In this embodiment, the seal 130 can be arranged along the outer edge of the housing 110 to seal the gap at the connection between the housing 110 and the cover plate 120. For the gap between the partition portion 1121 and the cover plate 120, another seal 130 can be laid along the edge of the partition portion 1121 to seal the gap between the housing 110 and the partition portion 1121. Alternatively, the portion of the cover plate 120 facing the partition portion 1121 can be set to protrude to seal the existing gap therebetween. Of course, the seal 130 can also be set according to the shape of the cover plate 120 and its size is slightly larger than that of the cover plate 120. In this way, not only can the gap between the housing 110 and the cover plate 120 be sealed, but also the gap between the partition portion 1121 and the cover plate 120 can be filled, so that the distribution groove 1122 and the plurality of flow grooves 1123 are independently arranged. In this embodiment, the latter method is adopted for the seal 130, and the specific setting of the seal 130 is not overly limited.

[0044] In one embodiment, as Figure 3 and Figure 4 shown, the distribution groove 1122 has a first cross-section obtained by cutting along a direction perpendicular to the gas flow direction. The bottom side L2 and the side L1 of the first cross-section are straight, and the angle formed by the bottom side L2 and the side L1 is greater than or equal to 90°. To enable the housing 110 to be demolded more quickly after casting, in this embodiment, as Figure 3 shown, the bottom side L2 and the side L1 of the inner wall of the housing 110 that enclose the distribution groove 1122 are straight, and the angle formed by the bottom side L2 and the side L1 is greater than or equal to 90°. In this way, the cross-section of the distribution groove 1122 formed after the cover plate 120 is covered is in a frame shape. The distribution groove 1122 arranged in this way is more convenient for demolding operations compared to the distribution groove 1122 with an arc-shaped cross-section, and the utilization rate of the cross-sectional area of the housing 110 by the distribution groove 1122 arranged in this way is higher than that of the distribution groove 1122 with an arc-shaped cross-section.

[0045] In another embodiment, as Figure 4As shown, the flow channel 1123 has a second cross-section intercepted along a direction perpendicular to the gas flow direction. The bottom side L2 and the side L1 of the second cross-section are straight, and the included angle formed by the bottom side L2 and the side L1 is greater than or equal to 90°. In this embodiment, the second cross-section of the flow channel 1123 formed by the partition portion 1121 and the inner wall of the housing 110 after covering the cover plate 120 along a direction perpendicular to the gas flow direction is consistent with that of the above embodiment and is also in a frame shape. In this embodiment, the design of the flow channel 1123 refers to the design of the above-mentioned distribution channel 1122. Therefore, the flow channel 1123 also has the same effect as the above-mentioned distribution channel 1122 and can be used in conjunction with the above embodiment in this embodiment.

[0046] In one embodiment, as Figure 2 and Figure 3 shown, the partition portion 1121 includes a first partition plate 11211, a second partition plate 11212, and a third partition plate 11213. The first partition plate 11211 is connected to one inner wall of the housing 110 and encloses a first flow channel 1123a. The third partition plate 11213 is connected to the other inner wall of the housing 110 and encloses a second flow channel 1123b. The second partition plate 11212 is disposed between the first partition plate 11211 and the third partition plate 11213. The wall surface of the first partition plate 11211 away from the inner wall of one side of the housing 110, the wall surface of the third partition plate 11213 away from the inner wall of the other side of the housing 110, and the second partition plate 11212 are connected to enclose a third gas flow channel 1123. In this embodiment, there are three flow channels 1123 in total, and the three flow channels 1123 are separated by the partition portion 1121. The partition portion 1121 includes a first partition plate 11211, a second partition plate 11212, and a third partition plate 11213. Among them, the first partition plate 11211 is connected to one inner wall of the housing 110 and the rear inner wall of the housing 110 and encloses a first flow channel 1123a. The third partition plate 11213 is connected to the other inner wall of the housing 110 and the rear inner wall of the housing 110 and encloses a second flow channel 1123b. The third partition plate 11213 is connected to the first partition plate 11211 and the third partition plate 11213, and encloses a third flow channel 1123c with the wall surface of the first partition plate 11211 away from the inner wall of one side of the housing 110 and the wall surface of the third partition plate 11213 away from the inner wall of the other side of the housing 110 and the rear inner wall of the housing 110. Moreover, the first partition plate 11211, the second partition plate 11212, and the third partition plate 11213 are located outside the flow channels 1123 formed by them respectively to avoid enclosing a distribution channel 1122 with the inner wall surface of the housing 110 at the front end.

[0047] Specifically, the first partition plate 11211 is vertically disposed on the bottom of the cavity 112 along the direction from the bottom to the opening of the cavity 112; and / or the second partition plate 11212 is vertically disposed on the bottom of the cavity 112 along the direction from the bottom to the opening of the cavity 112; and / or the third partition plate 11213 is vertically disposed on the bottom of the cavity 112 along the direction from the bottom to the opening of the cavity 112. In this embodiment, the first partition plate 11211, the second partition plate 11212, and the third partition plate 11213 can all be disposed along the direction from the bottom to the opening of the cavity 112 and perpendicular to the bottom of the cavity. Such a setting can make the cross-section of the flow channel 1123 be in a frame shape, achieving the same effect as the frame-shaped flow channel 1123 in the above embodiment. Of course, among the first partition plate 11211, the second partition plate 11212, and the third partition plate 11213, only one can adopt the above setting, or two of them can adopt the above setting, and no excessive limitation is made on this.

[0048] In one embodiment, as Figure 3 shown, mounting holes are formed in the first partition plate 11211 and the third partition plate 11213 for mounting the cover plate 120 and the seal 130. In view of the fact that the cover plate 120 and the housing 110 in this embodiment are fixedly connected by fasteners, in order to further improve the connection effect between the housing 110 and the cover plate 120, therefore, in this embodiment, mounting holes are formed in the extending direction of the first partition plate 11211 and the third partition plate 11213, and these mounting holes can be used for the fasteners to pass through the cover plate 120 and / or the seal 130 and be threadedly connected to the first partition plate 11211 and the third partition plate 11213, so that the housing 110 and the cover plate 120 can be connected more stably.

[0049] In one embodiment, as Figure 3As shown, the first flow channel 1123a includes a first flow section and a second flow section that are connected in communication. The first flow section and the second flow section are arranged at an angle. The width of the second flow section is tapered in a direction away from the first flow section. To make the gas flow more smoothly through the first flow channel 1123a and reduce the pressure loss during gas flow, in this embodiment, the first flow channel 1123a includes a first flow section and a second flow section that are connected in communication. Among them, the opening direction of the first flow section is the same as the direction of the gas flowing from the air inlet 111 to the distribution groove 1122, while the second flow section is arranged at an angle with the first flow section. In this embodiment, the angle between the second flow section and the first flow section is set at 90°. Since the gas will cause pressure loss due to the 90° angle when flowing from the first flow section into the second flow section, to solve this problem, at least one inner wall of the second flow section is inclined. This inner wall is arranged to approach the other inner wall in a direction from a position close to the first flow section to a direction away from the first flow section, so that the width of the second flow section is tapered in a direction away from the first flow section, thereby making the gas flow more smoothly from the first flow section into the second flow section, with less pressure loss, enabling the gas to more easily flow to the air outlet 113 away from the first flow section and be discharged through the air outlet 113.

[0050] In one embodiment, the partition portion 1121 and the housing 110 are integrally formed. In this embodiment, the partition portion 1121 and the housing 110 are integrally formed. The partition portion 1121 and the housing 110 are both manufactured by die casting. Since the cross-section of the partition portion 1121 is in a frame shape, after die casting and forming, it is more convenient to demold the housing 110 and the partition portion 1121.

[0051] In one embodiment, as Figure 1As shown, the gas distribution component 100 is also provided with an air inlet 111 connected to the distribution groove 1122 , and the air inlet 111 is connected to an air inlet pipe 170 . A plug-in portion 171 is provided on the inner side of the air inlet pipe 170 , and a diameter of the plug-in portion 171 is smaller than a diameter of the air inlet pipe 170 . In the present embodiment, an air inlet 111 is further provided on the shell 110, and an air inlet pipe 170 is arranged at the air inlet 111. Of course, the air inlet pipe 170 can be integrally formed with the shell 110, or can be installed later by welding. In order to achieve a better installation effect when the air inlet pipe 170 is connected to the external gas delivery pipeline, in the present embodiment, a plug-in portion 171 is provided on the inner side of the air inlet pipe 170. The diameter of the plug-in portion 171 is smaller than the diameter of the air inlet pipe 170, so the plug-in portion 171 forms an annular protrusion on the inner side of the air inlet pipe 170. When the external gas delivery pipeline is connected to the air inlet pipe 170, a plug-in method can be adopted, and the plug-in portion 171 can be abutted against the end face of the external gas delivery pipeline, so that the external gas delivery pipeline and the air inlet pipe 170 are better connected.

[0052] Specifically, the plug-in portion 171 is inclined, and the diameter of the plug-in portion 171 is gradually reduced along the air intake direction of the air intake pipe 170. In order to make the plug-in portion 171 have a better abutment effect with the external gas delivery pipe, in this embodiment, the plug-in portion 171 is inclined, and the inclination direction of the plug-in portion 171 is gradually reduced along the air intake direction of the air intake pipe 170. Such an arrangement can cause the end of the external gas delivery pipe to deform along the inclined plug-in portion 171 when the external gas delivery pipe is inserted into the air intake pipe 170, thereby achieving a better plug-in effect and a better sealing effect.

[0053] In one embodiment, the gas distribution component 100 further includes a plurality of communication parts 160. The plurality of communication parts 160 are arranged on the side of the housing 110 away from the opening. Each communication part 160 is used to connect each flow channel 1123 with the distribution channel 1122. A plurality of control valves 140 are provided. Each control valve 140 is detachably installed on each communication part 160, and each control valve 140 can control the on-off of each flow channel 1123 and the distribution channel 1122. In this embodiment, the gas distribution component 100 includes a plurality of communication parts 160. The plurality of communication parts 160 are arranged on the side of the housing 110 away from the opening. The communication part 160 is connected to the cavity 112 of the housing 110. The communication part 160 is respectively connected to the distribution channel 1122 and one of the flow channels 1123. In this embodiment, a plurality of control valves 140 are further provided. Each control valve 140 is detachably arranged on each communication part 160 to control the on-off of each flow channel 1123 and the distribution channel 1122, so as to adjust the number of combustion burners, and further achieve the function of increasing the load adjustment range.

[0054] Specifically, as Figure 3 and Figure 5 shown, the partition part 1121 is located on the communication part 160. The partition part 1121 divides the communication part 160 to form the air supply port 11221 of the distribution channel 1122 and the communication port 11231 of the flow channel 1123. In this embodiment, the partition part 1121 is arranged on the communication part 160. The partition part 1121 divides the communication part 160 to form the air supply port 11221 communicating with the distribution channel 1122 and the communication port 11231 communicating with the flow channel 1123. The control valve 140 is detachably arranged on the communication part 160. When the external gas enters the distribution channel 1122 through the air inlet 111 and the air inlet pipe 170, the distribution channel 1122 forms a distribution chamber due to the sealing of the cover plate 120. At this time, the gas in the distribution chamber will achieve positive pressure sealing of the control valve 140 through the air supply port 11221. When the control valve 140 is opened, the air supply port 11221 is connected to the communication port 11231 through the control valve 140, so that the gas in the distribution chamber enters the flow channel 1123 through the control valve 140, and then is discharged outside through the air outlet 113 opened in the flow channel 1123.

[0055] In one embodiment, as Figure 5As shown, the gas distribution component 100 is further provided with an air outlet 113 communicated with each of the flow grooves 1123, and a nozzle 150 is detachably arranged on the air outlet 113. In this embodiment, an air outlet 113 is formed in each of the flow grooves 1123. The number of the air outlets 113 can be multiple and can also be the same. The number of the air outlets 113 can be set according to actual requirements and no excessive requirements are made in this regard. In order to make the gas discharged through the air outlet 113 more concentrated, in this embodiment, a nozzle 150 is detachably arranged on each air outlet 113.

[0056] The present utility model further provides a gas water heater, which includes a gas distribution component 100. The specific structure of the gas distribution component 100 refers to the above embodiment. Since this gas water heater adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0057] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the technical concept of the present utility model, or direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A gas distribution component, characterized in that: include: The shell has a cavity, one side of the cavity is open, a partition is provided in the cavity, and the partition extends along the cavity wall of the cavity toward the opening to divide the cavity into a distribution groove and a plurality of flow grooves, and the plurality of flow grooves are connected to the distribution groove through at least one control valve; A cover plate, detachably mounted on the housing and covering the opening; as well as A sealing member is disposed between the shell and the cover plate to seal a gap between the cover plate and the shell.

2. The gas distribution assembly according to claim 1, characterized in that: The distribution groove has a first cross section cut perpendicular to the flow direction of the gas, the bottom and side of the first cross section are arranged in a straight line, and the angle formed by the bottom and side is greater than or equal to 90°; and / or The flow groove has a second cross section cut perpendicular to the flow direction of the gas, the bottom and side of the second cross section are arranged in a straight line, and the angle formed by the bottom and side is greater than or equal to 90°.

3. The gas distribution assembly according to claim 1, characterized in that: The partition portion includes a first partition, a second partition and a third partition. The first partition is connected to the inner wall of one side of the shell and encloses a first circulation groove. The third partition is connected to the inner wall of the other side of the shell and encloses a second circulation groove. The second partition is arranged between the first partition and the third partition. The wall surface of the first partition away from the inner wall of one side of the shell, the wall surface of the third partition away from the inner wall of the other side of the shell, and the second partition are connected to enclose a third gas circulation groove.

4. The gas distribution assembly according to claim 3, characterized in that: The first partition is arranged perpendicularly to the cavity bottom along the direction from the cavity bottom to the opening of the cavity; and / or The second partition is arranged perpendicularly to the cavity bottom along the direction from the cavity bottom to the opening of the cavity; and / or The third partition plate is vertically arranged at the cavity bottom along a direction from the cavity bottom to the opening of the cavity.

5. The gas distribution assembly according to claim 3, characterized in that: The first partition plate and the third partition plate are provided with mounting holes, and the mounting holes are used for mounting the cover plate and the sealing member.

6. The gas distribution assembly according to claim 3, characterized in that: The first flow groove includes a first flow section and a second flow section which are connected to each other. The first flow section and the second flow section are arranged at an angle, and the width of the second flow section is gradually reduced in a direction away from the first flow section.

7. The gas distribution assembly according to claim 1, characterized in that: The partition portion is integrally formed with the shell.

8. The gas distribution assembly according to any one of claims 1 to 7, characterized in that: The gas distribution component is also provided with an air inlet connected to the distribution groove, the air inlet is connected with an air inlet pipe, the inner side of the air inlet pipe is provided with a plug-in part, and the diameter of the plug-in part is smaller than the diameter of the air inlet pipe.

9. The gas distribution assembly according to claim 8, characterized in that: The plug-in portion is arranged in an inclined manner, and the diameter of the plug-in portion is arranged to be gradually reduced along the air intake direction of the air intake pipe.

10. The gas distribution assembly according to any one of claims 1 to 7, characterized in that: The gas distribution assembly further includes a plurality of communication parts, which are arranged on a side of the housing away from the opening, and each of the communication parts is used to connect each of the flow grooves with the distribution groove; There are multiple control valves, each of which is detachably mounted on each of the connecting parts, and each of the control valves can control the connection and disconnection of each of the flow grooves and the distribution grooves.

11. The gas distribution assembly according to claim 10, characterized in that: The partition is located on the connecting portion, and the partition separates the connecting portion to form the air supply port of the distribution groove and the connecting port of the flow groove.

12. The gas distribution assembly according to any one of claims 1 to 7, characterized in that: The gas distribution component is also provided with a gas outlet communicated with each of the flow grooves, and a nozzle is detachably provided on the gas outlet.

13. A gas water heater, characterized in that: Comprising the gas distribution assembly as claimed in any one of claims 1 to 12.

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