Annular gas distribution structure, burner device and hot water equipment

Abstract

The present invention relates to an annular gas distribution structure, a burner device and a water heater. During operation, the gas enters the surrounding gas distribution pipes from the gas inlet joint. Since each first channel is connected to at least one gas distribution pipe, the gas diverted in each gas distribution pipe will flow into the corresponding first channel, so that the gas entering from the middle flows evenly around the periphery of the first hollow portion in the gas distribution seat, effectively improving the uniformity of gas distribution. Since each first channel is correspondingly connected to at least one gas outlet, the gas flowing out of the surface of the gas supply seat remains evenly dispersed, ensuring that the gas flows evenly from all sides into the burner body. At the same time, the gas flowing from the gas outlet into the ejector pipe will inhale the air around the gas outlet, which effectively ensures that the primary air can be evenly inhaled into the gas burner body, making the combustion performance of the burner device better, which is conducive to more efficient and safe operation of the water heater.

Description

Technical Field

[0001] The invention relates to the technical field of gas distribution, and in particular to an annular gas distribution structure, a burner device and a water heater. Background Art

[0002] The gas distribution rod is a key component in the gas distribution of hot water equipment. It controls different gas flow channels through the solenoid valve, adjusts the load of the water heater as a whole, and ensures smooth output between large and small loads.

[0003] However, traditional single-side air intake layout of hot water equipment generally adopts strip or plate-type air distribution rod structure, which cannot be applied to the ring layout. At the same time, after the ring layout of hot water equipment adopts strip or plate-type air distribution rod structure, it is difficult for the primary air to enter the burner channel evenly, which is easy to cause local poor combustion, resulting in higher and higher smoke volume, and even very easy to exceed the standard. Summary of the invention

[0004] The first technical problem solved by the present invention is to provide an annular gas distribution structure, which can effectively improve the uniformity of gas distribution, ensure that primary air is evenly inhaled into the gas burner body, and make the combustion performance of the burner device better.

[0005] The second technical problem solved by the present invention is to provide a burner device which can effectively improve the uniformity of gas distribution and ensure that primary air is uniformly inhaled into the gas burner body, thereby improving the combustion performance of the burner device.

[0006] The third technical problem solved by the present invention is to provide a hot water device, which can effectively improve the uniformity of gas distribution, ensure that primary air is evenly inhaled into the gas burner body, and make the combustion performance of the burner device better.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] A ring-shaped gas distribution structure, the ring-shaped gas distribution structure comprising: a gas distribution seat, the gas distribution seat is provided with a first hollow portion, and two or more first channels arranged around the periphery of the first hollow portion; a gas distribution component, the gas distribution component is located in the first hollow portion, the gas distribution component comprises an air inlet joint, at least two air distribution pipes connected to the air inlet joint, at least two air distribution pipes are arranged at intervals along the circumference of the air inlet joint, each of the first channels is connected to at least one of the air distribution pipes; a gas supply seat, the gas supply seat is installed on the gas distribution seat and covers the first channel, the gas supply seat is provided with a second hollow portion and an air outlet hole for connecting to an ejector pipe, the second hollow portion is connected to the first hollow portion, and each of the first channels is correspondingly connected to at least one of the air outlet holes.

[0009] The annular gas distribution structure described in the present invention has the following beneficial effects compared with the background technology: during operation, the gas enters from the gas inlet joint, and the gas after entering flows into the surrounding gas distribution pipes in a divergent manner. Since each first channel is connected to at least one gas distribution pipe, the gas diverted in each gas distribution pipe will flow into the corresponding first channel, so that the gas entering from the middle flows evenly around the periphery of the first hollow portion in the gas distribution seat, effectively improving the uniformity of gas distribution. Since each first channel is correspondingly connected to at least one gas outlet, the gas flowing out of the surface of the gas supply seat remains in a uniformly dispersed state, ensuring that the gas flows evenly from all sides into the burner body. At the same time, the gas flowing into the ejector pipe from the gas outlet will inhale the air around the gas outlet, which effectively ensures that the primary air can be evenly inhaled into the gas burner body, making the combustion performance of the burner device better, which is conducive to more efficient and safe operation of the water heater. In addition, the gas distribution seat and the gas supply seat are respectively provided with a first hollow portion and a second hollow portion, so that the gas distribution seat and the gas supply seat can both have an annular structure, which is conducive to the application of the annular gas distribution structure in a segmented burner device with an annular layout, effectively improving the application scope of the annular gas distribution structure.

[0010] In one embodiment, the annular gas distribution structure also includes a control valve, at least two of the gas distribution pipes are divided into a first gas distribution pipe and a second gas distribution pipe, the first gas distribution pipe and the second gas distribution pipe are respectively connected to the two first channels, and the control valve is used to control the connection between the second gas distribution pipe and the first channel.

[0011] In one embodiment, the control valve includes a valve seat and a valve body, the valve seat is mounted on the air distribution seat, the valve seat is provided with an air inlet hole connected to the first channel, the second air distribution pipe is connected to the valve seat, the valve body is movably mounted on the valve seat, and is used to close or open the air inlet hole.

[0012] In one embodiment, the valve seat is arranged on a side surface of the gas dividing seat facing away from the first hollow portion.

[0013] In one of the embodiments, the air outlet holes are arranged on a side surface of the air supply seat facing away from the air distribution seat, and at least two of the air outlet holes are arranged at intervals along the circumference of the second hollow portion.

[0014] In one embodiment, the air supply seat is provided with two or more second channels arranged around the periphery of the second hollow portion, the second channels are connected to the first channels, and each of the second channels is connected to at least one of the air outlets.

[0015] In one of the embodiments, the annular gas distribution structure further includes a sealing member, and the sealing member is sealingly disposed between the gas distribution seat and the gas supply seat.

[0016] In one embodiment, a first fixing seat is provided on the gas distribution seat, a second fixing seat is provided on the gas supply seat, and the first fixing seat is connected to the second fixing seat.

[0017] In one of the embodiments, the annular fuel gas distribution structure further includes a nozzle, each of the gas outlet holes is connected to the nozzle, and the nozzle is used to be connected to the ejector pipe.

[0018] The above second technical problem is solved by the following technical solution:

[0019] A burner device comprises a burner body, an ejector pipe and an annular gas distribution structure as described in any one of the above items, wherein the ejector pipe is mounted on the burner body, at least a portion of the burner body is inserted into the second hollow portion, and the ejector pipe is connected to at least one of the gas outlet holes.

[0020] The burner device described in the present invention has the following beneficial effects compared with the background technology: the above annular gas distribution structure is adopted, and during operation, the gas enters from the gas inlet joint, and the gas after entering flows into the surrounding gas distribution pipes in a divergent manner. Since each first channel is connected to at least one gas distribution pipe, the gas diverted in each gas distribution pipe will flow into the corresponding first channel, so that the gas entering the middle flows evenly around the periphery of the first hollow part in the gas distribution seat, effectively improving the uniformity of gas distribution. Since each first channel is correspondingly connected to at least one gas outlet, the gas flowing out of the surface of the gas supply seat remains in a uniformly dispersed state, ensuring that the gas flows evenly from all sides into the burner body. At the same time, the gas flowing into the ejector pipe from the gas outlet will inhale the air around the gas outlet, which effectively ensures that the primary air can be evenly inhaled into the gas burner body, making the combustion performance of the burner device better, which is conducive to more efficient and safe operation of the whole water heater. In addition, the gas distribution seat and the gas supply seat are respectively provided with a first hollow portion and a second hollow portion, so that the gas distribution seat and the gas supply seat can both have an annular structure, which is conducive to the application of the annular gas distribution structure in a segmented burner device with an annular layout, effectively improving the application scope of the annular gas distribution structure.

[0021] The third technical problem mentioned above is solved by the following technical solution:

[0022] A water heating device comprises the burner device described above.

[0023] The water heater of the present invention has the following beneficial effects compared with the background technology: by adopting the above annular gas distribution structure, during operation, the gas enters from the gas inlet joint, and the gas after entering flows into the surrounding gas distribution pipes in a divergent manner. Since each first channel is connected to at least one gas distribution pipe, the gas diverted in each gas distribution pipe will flow into the corresponding first channel, so that the gas entering from the middle flows evenly around the periphery of the first hollow part in the gas distribution seat, effectively improving the uniformity of gas distribution. Since each first channel is correspondingly connected to at least one gas outlet, the gas flowing out of the surface of the gas supply seat remains in a uniformly dispersed state, ensuring that the gas flows evenly from all sides into the burner body. At the same time, the gas flowing into the ejector pipe from the gas outlet will inhale the air around the gas outlet, which effectively ensures that the primary air can be evenly inhaled into the gas burner body, making the combustion performance of the burner device better, which is conducive to more efficient and safe operation of the whole water heater. In addition, the gas distribution seat and the gas supply seat are respectively provided with a first hollow portion and a second hollow portion, so that the gas distribution seat and the gas supply seat can both have an annular structure, which is conducive to the application of the annular gas distribution structure in a segmented burner device with an annular layout, effectively improving the application scope of the annular gas distribution structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of an annular fuel gas distribution structure in one embodiment;

[0027] Figure 2 It is a schematic diagram of an explosion of an annular gas distribution structure described in one embodiment;

[0028] Figure 3 A schematic diagram of the structure of a gas distributor according to an embodiment;

[0029] Figure 4 A cross-sectional view of a gas distributor structure in one embodiment;

[0030] Figure 5 A schematic diagram of the structure of one side of the air supply seat in one embodiment;

[0031] Figure 6A schematic diagram of the structure of the other side of the air supply seat in one embodiment;

[0032] Figure 7 is a schematic diagram of the sealing structure described in an embodiment;

[0033] Figure 8 Schematic diagram of the structure of a burner device described in one embodiment.

[0034] Reference numerals:

[0035] 100, annular gas distribution structure; 110, gas distribution seat; 111, first hollow part; 112, first channel; 113, first fixed seat; 114, first mounting surface; 115, first flow isolation part; 120, gas supply seat; 121, second hollow part; 122, second channel; 123, second fixed seat; 124, second mounting surface; 125, air outlet; 126, second flow isolation part; 130, sealing member; 131, perforation; 132, third flow isolation part; 133, third fixed seat; 140, gas distribution assembly; 141, gas distribution pipe; 1411, first gas distribution pipe; 1412, second gas distribution pipe; 142, gas inlet joint; 150, control valve; 151, valve seat; 1511, gas inlet hole; 1512, sealing surface; 160, nozzle; 200, gas burner body; 300, ejector pipe. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 8, an annular gas gas distribution structure 100, the annular gas gas distribution structure 100 includes: a gas distribution seat 110, a gas distribution component 140 and a gas supply seat 120. The gas distribution seat 110 is provided with a first hollow portion 111 and two or more first channels 112 arranged around the periphery of the first hollow portion 111. The gas distribution component 140 is located in the first hollow portion 111, and the gas distribution component 140 includes an air inlet joint 142 and at least two air distribution pipes 141 connected to the air inlet joint 142. At least two air distribution pipes 141 are arranged at intervals along the circumference of the air inlet joint 142. Each first channel 112 is connected to at least one air distribution pipe 141. The gas supply seat 120 is installed on the gas distribution seat 110 and covers the first channel 112. The gas supply seat 120 is provided with a second hollow portion 121 and an air outlet 125 for communicating with the ejector pipe 300. The second hollow portion 121 is connected to the first hollow portion 111. Each first channel 112 is correspondingly connected to at least one air outlet hole 125 .

[0043] In the above-mentioned annular gas distribution structure 100, during operation, gas enters from the gas inlet joint 142, and the gas after entering flows into the surrounding gas distribution pipes 141 in a divergent manner. Since each first channel 112 is connected to at least one gas distribution pipe 141, the gas diverted in each gas distribution pipe 141 will flow into the corresponding first channel 112, so that the gas entering the middle part flows evenly around the periphery of the first hollow part 111 in the gas distribution seat 110, effectively improving the uniformity of gas distribution. Since each first channel 112 is correspondingly connected to at least one gas outlet 125, the gas flowing out of the surface of the gas supply seat 120 still maintains a uniform dispersion state, ensuring that the gas flows evenly from all sides into the burner body. At the same time, the gas flowing into the ejector pipe 300 from the gas outlet 125 will inhale the air around the gas outlet 125, which effectively ensures that the primary air can be evenly inhaled into the gas burner body 200, so that the combustion performance of the burner device is better, which is conducive to the operation of the water heater as a whole more efficient and safe. In addition, the gas distribution seat 110 and the gas supply seat 120 are respectively provided with a first hollow portion 111 and a second hollow portion 121, so that the gas distribution seat 110 and the gas supply seat 120 can both be annular structures (for example: the annular structure can be a circular ring, a square ring, etc.), which is beneficial for the annular gas distribution structure to be applied to the segmented burner device with an annular layout, effectively improving the application scope of the annular gas distribution structure.

[0044] It should be noted that each first channel 112 is connected to at least one gas distribution pipe 141, which should be understood as: at least one gas distribution pipe 141 is guaranteed to be connected to each first channel 112, for example: the first channel 112 may correspond to one gas distribution pipe 141, or may correspond to more than two gas distribution pipes 141. When the first channel 112 is connected to multiple gas distribution pipes 141, the gas entering the gas distribution pipe 141 will converge in the first channel 112 as multiple gas streams. Among them, the "communication" between the first channel 112 and the gas distribution pipe 141 should be understood as direct communication or indirect communication (the communication between the first channel 112 and the gas distribution pipe 141 is achieved through an intermediate structure).

[0045] It should also be noted that each first channel 112 is connected to at least one gas outlet 125, which should be understood as: the gas in each first channel 112 can flow out from at least one gas outlet 125. The connection relationship between the gas outlet 125 and the first channel 112 can be direct connection (for example: one end of the gas outlet 125 is extended to the first channel 112, etc.), or indirect connection, that is, there is other space between the gas outlet 125 and the first channel 112.

[0046] In addition, at least two first channels 112 may be formed on the air separator 110 by directly opening at least two independent grooves on the air separator 110 around the first hollow portion 111; or a complete annular groove may be directly opened on the air separator 110, and then two or more first flow partitions 115 may be arranged on the annular groove at intervals to separate the annular groove into two or more first channels 112. The first hollow portion 111 and the second hollow portion 121 may be designed to have a whole hollow hole structure, or may be designed to have multiple hollow structures distributed at scattered intervals. This embodiment does not specifically limit this, and only needs to satisfy that the secondary air flows through the first hollow portion 111 and the second hollow portion 121.

[0047] Optionally, there are various specific distributions of the at least two gas distribution pipes 141 on the gas inlet connector 142, such as: at least two gas distribution pipes 141 are evenly surrounded by the periphery of the gas inlet connector 142, etc. At the same time, the angle between the gas distribution pipes 141 and the gas distribution pipes 141 is not specifically limited in this embodiment, and it is only necessary to ensure that the annular gas distribution structure does not interfere with other structures during assembly.

[0048] For further information, please refer to Figure 2, the annular gas distribution structure 100 also includes a control valve 150. At least two gas distribution pipes 141 are divided into a first gas distribution pipe 1411 and a second gas distribution pipe 1412. The first gas distribution pipe 1411 and the second gas distribution pipe 1412 are respectively connected to the two first channels 112. The control valve 150 is used to control the connection and disconnection between the second gas distribution pipe 1412 and the first channel 112. It can be seen that the flow channel between the first gas distribution pipe 1411 and the first channel 112 is always in a normally open state. During the gas distribution process, when the hot water equipment requires a larger combustion load, the control valve 150 on the second gas distribution pipe 1412 is opened to connect the second gas distribution pipe 1412 and the first channel 112. At this time, part of the gas flows from the second gas distribution pipe 1412 into the first channel 112, realizing the rapid and uniform dispersion flow of the gas entering the middle; finally, the gas in the first channel 112 finally enters the ejector pipe 300 from the gas outlet 125. In this way, by controlling the on-off function of valve 150, different numbers of ejectors can be used to supply gas, forming a small load, medium load or large load combustion mode, realizing a multi-stage combustion mode of the burner device, and better overcoming the problem of excessive temperature rise in small and medium loads of the hot water equipment.

[0049] Of course, in other embodiments, a control valve 150 may also be disposed between the first gas distribution pipe 1411 and the first channel 112 .

[0050] It should be noted that the first air distribution pipe 1411 and the first channel 112 can be connected indirectly or directly. When the first air distribution pipe 1411 and the first channel 112 are connected indirectly, the first air distribution pipe 1411 is connected to the air inlet connector 142, and the air inlet connector 142 is connected to the first channel 112, and the connection between the two is achieved through the air inlet connector 142. Similarly, the second air distribution pipe 1412 and the first channel 112 can be connected indirectly or directly.

[0051] It should be noted that the number of the second gas distribution pipes 1412 can be one or more than two. When there are more than two second gas distribution pipes 1412, the number of the first channels 112 should be more than three (ie, at least one first channel 112 is reserved to correspond to the first gas distribution pipe 1411).

[0052] Specifically, please refer to Figure 3 , the number of the air distribution pipes 141 is three, namely, the first air distribution pipe 1411 and the two second air distribution pipes 1412. The first air distribution pipe 1411 and the two second air distribution pipes 1412 are both connected to the air inlet connector 142, and the first air distribution pipe 1411 and the two second air distribution pipes 1412 are respectively connected to the three first channels 112. Among them, there are many types of control valves 150, as long as they can realize the function of controlling the connection and disconnection between the second air distribution pipes 1412 and the first channels 112.

[0053] For further information, please refer to Figure 3 and Figure 4 The control valve 150 includes a valve seat 151 and a valve body (not shown). The valve seat 151 is mounted on the gas distribution seat 110. The valve seat 151 is provided with an air inlet hole 1511 connected to the first channel 112. The second gas distribution pipe 1412 is connected to the valve seat 151. The valve body is movably mounted on the valve seat 151 and is used to close or open the air inlet hole 1511. It can be seen that the second gas distribution pipe 1412 and the first channel 112 of this embodiment are indirectly connected, that is, when the valve body movably opens the control valve 150, the gas enters the valve seat 151 from the second gas distribution pipe 1412; and then flows into the first channel 112 from the air inlet hole 1511 on the valve seat 151. Among them, the valve body can be a solenoid valve, etc.

[0054] In one embodiment, please refer to Figure 4 , a sealing surface 1512 is provided on the valve seat 151. The sealing surface 1512 is extended along the periphery of the air inlet 1511, and the valve body can be close to or away from the sealing surface 1512 when moving, so as to realize the connection and disconnection between the second air distribution pipe 1412 and the air inlet 1511. The movement mode of the valve body can be telescopic movement or rotation movement. At the same time, the output shaft of the valve body can be a piston plate structure or a rotating rod structure.

[0055] For further information, please refer to Figure 3 The valve seat 151 is arranged on the side surface of the gas distribution seat 110 facing away from the first hollow portion 111, that is, the valve seat 151 is arranged on the outer side surface of the gas distribution seat 110, so that the valve body can better control the connection and disconnection between the second gas distribution pipe 1412 and the first channel 112.

[0056] In one embodiment, please refer to Figure 2 and Figure 5 , the gas outlet holes 125 are arranged on the side surface of the gas supply seat 120 facing away from the gas distribution seat 110, and at least two gas outlet holes 125 are arranged at intervals along the circumference of the second hollow portion 121. It can be seen that the gas transmission direction of the gas supply seat 120 in this embodiment is from the gas distribution seat 110 to the gas supply seat 120, that is, the gas transmission along the axial direction of the second hollow portion 121. At this time, the ejector pipe 300 of the burner device is vertically distributed, so that the annular gas gas distribution structure of this embodiment is suitable for the burner device with the ejector pipe 300 distributed vertically. Among them, the gas outlet holes 125 can be directly opened on the gas supply seat 120, and can also be indirectly opened on the gas supply seat 120.

[0057] For further information, please refer to Figure 2 and Figure 6, the gas supply seat 120 is provided with more than two second channels 122 arranged around the periphery of the second hollow portion 121. The second channels 122 are connected to the first channels 112, and each second channel 122 is connected to at least one gas outlet 125. It can be seen that after the gas is diverted from the middle to the surroundings, the gas flows from the first channel 112 into the second channels 122. Since the more than two second channels 122 are distributed around the periphery of the second hollow portion 121 on the gas supply seat 120 at intervals, the gas flowing into the gas supply seat 120 remains in a uniformly dispersed state, so that the gas flowing out of the gas outlet 125 flows into the burner body uniformly from all sides.

[0058] It should be noted that there are many ways to realize the connection between the second channel 122 and the first channel 112, for example: the second channel 122 is connected to the first channel 112 one-to-one; or, multiple second channels 122 are connected to the same first channel 112, that is, a many-to-one connection relationship; or, the same second channel 122 is connected to multiple first channels 112, that is, a one-to-many connection relationship, etc.

[0059] Specifically, please refer to Figure 3 and Figure 6 The second channel 122 is connected to the first channel 112 in a one-to-one correspondence, that is, during the assembly process, when the gas supply seat 120 is installed on the gas distribution seat 110, the opening of the second channel 122 just corresponds to the opening of the first channel 112.

[0060] Specifically, please refer to Figure 3 and Figure 6 The sizes of the first channel 112 and the second channel 122 are adapted to each other, that is, during assembly, the first channel 112 and the second channel 122 can fully match and be combined into one to form an overall chamber structure.

[0061] It should also be noted that each second channel 122 may correspond to one air outlet 125, or may correspond to more than two air outlets 125. At the same time, each ejector tube 300 may correspond to one air outlet 125; of course, it may also correspond to more than two air outlets 125 at the same time, that is, at least two air outlets 125 are arranged in parallel and spaced apart on the air supply seat 120, and are connected to the same ejector tube 300, so that more primary air is inhaled, thereby making the gas combustion performance of the burner device better.

[0062] In addition, at least two second channels 122 may be formed on the air supply seat 120 by directly opening at least two independent grooves on the air supply seat 120 surrounding the second hollow portion 121; or a complete annular groove may be directly opened on the air supply seat 120, and then, two or more second flow isolation portions 126 are spaced apart on the annular groove to separate the annular groove into more than two second channels 122.

[0063] In one embodiment, please refer to Figure 2 The annular gas distribution structure 100 further includes a seal 130. The seal 130 is sealingly disposed between the gas distribution seat 110 and the gas supply seat 120. In this way, the gas distribution seat 110 and the gas supply seat 120 are tightly combined to ensure that the gas does not leak in both the first channel 112 and the second channel 122.

[0064] For further information, please refer to Figure 3 and Figure 6 A first mounting surface 114 is provided on one side of the gas distributor 110 facing the gas supply seat 120. A second mounting surface 124 is provided on one side of the gas supply seat 120 facing the gas distributor 110. A sealing member 130 is provided between the first mounting surface 114 and the second mounting surface 124.

[0065] In one embodiment, please refer to Figure 2 , Figure 6 and Figure 7 The sealing member 130 is provided with more than two through holes 131, and the first channel 112 is connected with the second channel 122 through the through holes 131. Meanwhile, a third flow isolation portion 132 is formed between two adjacent through holes 131.

[0066] In one embodiment, please refer to Figure 2 The gas distribution seat 110 is provided with a first fixing seat 113, and the gas supply seat 120 is provided with a second fixing seat 123, and the first fixing seat 113 is connected to the second fixing seat 123. In this way, the gas distribution seat 110 and the gas supply seat 120 are ensured to be tightly connected.

[0067] Optionally, the connection between the first fixing seat 113 and the second fixing seat 123 may be bolt connection, pin connection, clamping connection, riveting connection, welding, etc.

[0068] For further information, please refer to Figure 2 A third fixing seat 133 is disposed on the sealing member 130 , and the first fixing seat 113 is connected to the second fixing seat 123 via the third fixing seat 133 .

[0069] Specifically, please refer to Figure 2 The first fixing seat 113, the second fixing seat 123 and the third fixing seat 133 are all multiple. The multiple first fixing seats 113 are arranged at intervals along the periphery of the gas distribution seat 110. The multiple second fixing seats 123 are arranged at intervals along the periphery of the gas supply seat 120. The multiple third fixing seats 133 are arranged at intervals along the periphery of the sealing member 130.

[0070] In one embodiment, please refer to Figure 5The annular gas distribution structure 100 further includes a nozzle 160. Each gas outlet 125 is connected to a nozzle 160. The nozzle 160 is used to communicate with the ejector tube 300. Thus, through the nozzle 160, the gas enters the ejector tube 300 stably and smoothly from the gas outlet 125.

[0071] Specifically, the ejector tube 300 is simultaneously mounted on more than two nozzles 160 so that more primary air can be sucked in.

[0072] In one embodiment, please refer to Figure 1 and Figure 8 A burner device includes a burner body, an ejector tube 300 and an annular gas distribution structure 100 in any one of the above embodiments. The ejector tube 300 is mounted on the burner body. At least a portion of the burner body is inserted into the second hollow portion 121. The ejector tube 300 is connected to at least one gas outlet 125.

[0073] The above-mentioned burner device adopts the above-mentioned annular gas gas distribution structure 100. During operation, the gas enters from the gas inlet joint 142, and the gas after entering flows into the surrounding gas distribution pipes 141 in a divergent manner. Since each first channel 112 is connected to at least one gas distribution pipe 141, the gas diverted in each gas distribution pipe 141 will flow into the corresponding first channel 112, so that the gas entering the middle will flow evenly around the periphery of the first hollow portion 111 in the gas distribution seat 110, effectively improving the uniformity of gas distribution. Since each first channel 112 is correspondingly connected to at least one gas outlet 125, the gas flowing out of the surface of the gas supply seat 120 still maintains a uniform dispersion state, ensuring that the gas flows evenly from all sides into the burner body. At the same time, the gas flowing into the ejector pipe 300 from the gas outlet 125 will inhale the air around the gas outlet 125, which effectively ensures that the primary air can be evenly inhaled into the gas burner body 200, so that the combustion performance of the burner device is better, which is conducive to the operation of the water heater as a whole more efficient and safe. In addition, the gas distribution seat 110 and the gas supply seat 120 are respectively provided with a first hollow portion 111 and a second hollow portion 121, so that the gas distribution seat 110 and the gas supply seat 120 can both be annular structures, which is conducive to the application of the annular gas distribution structure in a segmented burner device with an annular layout, effectively improving the application scope of the annular gas distribution structure.

[0074] It should be noted that there are many types of burner bodies, and they only need to meet the requirement of stable combustion of gas. Since the burner body is not the object of improvement of this embodiment, its specific structure is not introduced in detail here, and the existing literature and existing products can be directly referred to.

[0075] In one embodiment, please refer to Figure 8 , a water heating device, the water heating device comprises the burner device in the above embodiment.

[0076] The above-mentioned water heater adopts the above-mentioned annular gas gas distribution structure 100. During operation, the gas enters from the gas inlet joint 142, and the gas after entering flows into the surrounding gas distribution pipes 141 in a divergent manner. Since each first channel 112 is connected to at least one gas distribution pipe 141, the gas diverted in each gas distribution pipe 141 will flow into the corresponding first channel 112, so that the gas entering the middle part flows evenly around the periphery of the first hollow part 111 in the gas distribution seat 110, effectively improving the uniformity of gas distribution. Since each first channel 112 is correspondingly connected to at least one gas outlet 125, the gas flowing out of the surface of the gas supply seat 120 still maintains a uniform dispersion state, ensuring that the gas flows evenly from all sides into the burner body. At the same time, the gas flowing into the ejector pipe 300 from the gas outlet 125 will inhale the air around the gas outlet 125, which effectively ensures that the primary air can be evenly inhaled into the gas burner body 200, so that the combustion performance of the burner device is better, which is conducive to the operation of the water heater as a whole more efficient and safe. In addition, the gas distribution seat 110 and the gas supply seat 120 are respectively provided with a first hollow portion 111 and a second hollow portion 121, so that the gas distribution seat 110 and the gas supply seat 120 can both be annular structures, which is conducive to the application of the annular gas distribution structure in a segmented burner device with an annular layout, effectively improving the application scope of the annular gas distribution structure.

[0077] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A ring-shaped gas distribution structure, characterized in that: The annular fuel gas distribution structure (100) comprises: An air distribution seat (110), wherein the air distribution seat (110) is provided with a first hollow portion (111) and two or more first channels (112) arranged around the periphery of the first hollow portion (111); An air distribution component (140), the air distribution component (140) being located in the first hollow portion (111), the air distribution component (140) comprising an air intake connector (142), and at least two air distribution pipes (141) communicating with the air intake connector (142), the at least two air distribution pipes (141) being arranged at intervals along the circumference of the air intake connector (142), and each of the first channels (112) being communicated with at least one of the air distribution pipes (141); An air supply seat (120), the air supply seat (120) being mounted on the air distribution seat (110) and covering the first channel (112), the air supply seat (120) being provided with a second hollow portion (121) and an air outlet hole (125) for communicating with the ejector tube (300), the second hollow portion (121) being communicated with the first hollow portion (111), and each of the first channels (112) being correspondingly communicated with at least one of the air outlet holes (125); The annular gas distribution structure (100) further comprises a control valve (150); at least two of the gas distribution pipes (141) are divided into a first gas distribution pipe (1411) and a second gas distribution pipe (1412); the first gas distribution pipe (1411) and the second gas distribution pipe (1412) are respectively connected to the two first channels (112); and the control valve (150) is used to control the connection and disconnection between the second gas distribution pipe (1412) and the first channel (112).

2. The annular gas distribution structure according to claim 1, characterized in that: The control valve (150) comprises a valve seat (151) and a valve body; the valve seat (151) is mounted on the gas distribution seat (110); the valve seat (151) is provided with an air inlet hole (1511) connected to the first channel (112); the second air distribution pipe (1412) is connected to the valve seat (151); the valve body is movably mounted on the valve seat (151) and is used to close or open the air inlet hole (1511).

3. The annular gas distribution structure according to claim 2, characterized in that: The valve seat (151) is arranged on a side surface of the gas separation seat (110) facing away from the first hollow portion (111).

4. The annular gas distribution structure according to claim 1, characterized in that: The air outlet holes (125) are arranged on a side surface of the air supply seat (120) facing away from the air distribution seat (110), and at least two of the air outlet holes (125) are arranged at intervals along the circumference of the second hollow portion (121).

5. The annular gas distribution structure according to claim 1, characterized in that: The air supply seat (120) is provided with two or more second channels (122) arranged around the periphery of the second hollow portion (121); the second channels (122) are connected to the first channel (112), and each of the second channels (122) is connected to at least one of the air outlet holes (125).

6. The annular gas distribution structure according to any one of claims 1 to 5, characterized in that: The annular fuel gas distribution structure (100) further comprises a sealing member (130), wherein the sealing member (130) is sealingly disposed between the gas distribution seat (110) and the gas supply seat (120).

7. The annular gas distribution structure according to any one of claims 1 to 5, characterized in that: The gas distribution seat (110) is provided with a first fixing seat (113), the gas supply seat (120) is provided with a second fixing seat (123), and the first fixing seat (113) is connected to the second fixing seat (123).

8. The annular gas distribution structure according to any one of claims 1 to 5, characterized in that: The annular fuel gas distribution structure (100) further comprises a nozzle (160), each of the gas outlet holes (125) is connected to the nozzle (160), and the nozzle (160) is used to be connected to the ejector pipe (300).

9. A burner device, characterized in that: The burner device comprises a burner body, an ejector tube (300) and an annular gas distribution structure (100) as described in any one of claims 1 to 8, the ejector tube (300) is installed on the burner body, at least a portion of the burner body is inserted into the second hollow portion (121), and the ejector tube (300) is connected to at least one of the gas outlet holes (125).

10. A water heating device, characterized in that: The water heating device comprises the burner device according to claim 9.

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