Gas distribution rod and gas water heater

Abstract

The application belongs to the technical field of water heaters, and particularly relates to a gas distribution rod and a gas water heater. The application aims to solve the problem that the existing gas distribution rod needs to be processed by opening multiple molds due to different external structures. The gas distribution rod comprises a rod body and a valve body mounting seat. The rod body is internally provided with a gas distribution channel and at least three gas inlet channels. The gas inlet channels are communicated with the gas distribution channel. The gas distribution channel is internally provided with a gas injection hole. The valve body mounting seat is provided with gas inlet holes. Each gas inlet hole is communicated with a gas inlet channel. A control valve mounted on the valve body mounting seat controls whether the gas inlet channel is communicated with gas by controlling the opening and closing of the gas inlet hole, thereby controlling the gas on-off of the gas injection hole communicated with the gas distribution cavity and realizing the adjustment of the number of combustion fire rows. The number of the gas distribution cavities is changed by changing the number of the partitions, thereby changing the gear adjustment of the gas water heater. The external structure of the gas distribution rod does not change, the shell part of the casting mold does not need to be changed, and the production cost is avoided to be increased.

Description

Technical Field

[0001] This application belongs to the field of water heater technology, specifically relating to a gas distribution rod and a gas water heater. Background Technology

[0002] A gas water heater is a gas appliance that uses gas as fuel. It produces high-temperature flue gas by burning a mixture of air and gas in a combustion chamber. The high-temperature flue gas then flows into a heat exchanger and exchanges heat with cold water in the heat exchanger to produce hot water. It is widely used because of its advantages such as ease of use and rapid hot water production.

[0003] To meet the varying water temperature requirements of gas water heaters in winter and summer, existing gas water heaters typically use a gas distributor and control valve to control the number of burners in the combustion chamber, achieving segmented combustion. Depending on the number of burners, the gas distributor of a gas water heater can be divided into three-segment, five-segment, etc. A three-segment gas water heater can achieve three levels of heat adjustment, while a five-segment gas water heater can achieve five levels of heat adjustment.

[0004] However, for gas water heaters with the same total number of burners, the external structure of the gas distribution rods in different sections is different, requiring multiple molds for processing, which not only affects production efficiency but also leads to high costs. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, namely, the need to open multiple molds for processing due to the different external structures of the gas distribution rods of different segments, which affects production efficiency and increases costs, this application provides a gas distribution rod and a gas water heater.

[0006] The air distribution rod includes: a rod body and a valve body mounting base; the rod body has an air distribution channel extending along a preset direction, and the sidewall of the air distribution channel has multiple air jet holes, which are evenly spaced along the preset direction; the rod body also has at least three air intake channels, each of which is connected to the air distribution channel; the at least three air intake channels are spaced apart along the preset direction; at least one partition is provided in the air distribution channel, which divides the air distribution channel into at least two air distribution chambers, each of which is connected to at least one air intake channel; the valve body mounting base is integrally formed with the rod body, and the valve body mounting base has at least three air intake holes, each of which is connected to one air intake channel.

[0007] In the above-mentioned optional technical solution of the air distribution rod, the rod body includes an air distribution pipe section and three air inlet pipe sections. The air distribution pipe section extends along the preset direction and forms the air distribution channel within the air distribution pipe section. The three air inlet pipe sections extend along the preset direction and are integrally formed with the air distribution pipe section. Each of the three air inlet pipe sections forms an air inlet channel. All three air inlet pipe sections are connected to the valve body mounting seat.

[0008] In the above-mentioned optional technical solution of the air distribution rod, the two ends of the air distribution pipe are respectively provided with connecting supports. The connecting supports include a connecting arm connected to the air distribution pipe and a fixing platform formed by bending and extending the free end of the connecting arm. The fixing platform is provided with fixing holes.

[0009] In the above-mentioned optional technical solution of the air distribution rod, the two ends of the air distribution pipe are also provided with positioning structures opposite to the connecting support. The positioning structure includes a column connected to the air distribution pipe and a positioning part provided at the end of the column. The positioning part is a positioning groove or a positioning column.

[0010] In the above-mentioned optional technical solution of the air distribution rod, the valve body mounting seat includes a connector connected to the three air inlet pipes and a mounting plate disposed at the end of the connector. The mounting plate and the connector are provided with the air inlet holes; the mounting plate is provided with multiple mounting holes.

[0011] In the above-mentioned optional technical solution of the gas distributor, the gas distributor further includes a mating body, which is connected to the three intake pipe sections. The mating body is located between the valve body mounting seat and the gas distributor section. The peripheral side of the mating body forms a mating surface, which is used to mate with the mounting port of the combustion chamber housing.

[0012] In the above-mentioned optional technical solutions for the air distribution rod, a plurality of axial reinforcing ribs and a plurality of circumferential reinforcing ribs are provided on the outer side of the air distribution pipe; the axial reinforcing ribs extend along the length direction of the air distribution pipe, and the plurality of axial reinforcing ribs are arranged at intervals along the circumference of the air distribution pipe; the circumferential reinforcing ribs extend along the circumference of the air distribution pipe, and the plurality of circumferential reinforcing ribs are arranged at intervals along the axial direction of the air distribution pipe.

[0013] In the optional technical solution of the above-mentioned air distribution bar, three air intake channels are provided; the cross-section of the three air intake channels is circular, and the three air intake channels are respectively the first air intake channel, the second air intake channel, and the third air intake channel; the three air intake holes are all circular holes, and the three air intake holes are respectively the first air intake hole, the second air intake hole, and the third air intake hole; the diameter of the first air intake channel is larger than the diameter of the second air intake channel, the diameter of the second air intake channel is larger than the diameter of the third air intake channel, and the third air intake channel is located between the second air intake channel and the first air intake channel; the diameter of the first air intake hole is larger than the diameter of the second air intake hole, and the diameter of the second air intake hole is larger than the diameter of the third air intake hole.

[0014] In the optional technical solution of the above-mentioned air distribution rod, a baffle is provided in the air distribution channel, the baffle is located between the first air intake channel and the third air intake channel, and the number of jet holes on both sides of the baffle is different.

[0015] In the optional technical solution of the above-mentioned air distribution rod, two partitions are provided in the air distribution channel, one partition is located between the first air intake channel and the third air intake channel, and the other partition is located between the second air intake channel and the third air intake channel; the two partitions divide the air distribution channel into three air distribution chambers, and the number of corresponding jet holes in each air distribution chamber is different.

[0016] The gas water heater includes: a combustion chamber housing, a burner, and the aforementioned gas distribution rod. The combustion chamber housing is provided with an installation port. The burner is installed inside the combustion chamber housing. The gas distribution rod cooperates with the installation port, and a portion of the gas distribution rod extends into the combustion chamber housing. Each jet hole of the gas distribution rod is connected to one burner row of the burner.

[0017] Those skilled in the art will understand that the gas water heater of this application comprises a gas distribution rod including a rod body and a valve body mounting base. The rod body has a gas distribution channel extending along a predetermined direction, and the sidewall of the gas distribution channel has multiple jet holes evenly spaced along the predetermined direction. The rod body also has at least three air inlet channels, each connected to the gas distribution channel, and these three air inlet channels are spaced apart along the predetermined direction. At least one baffle is provided within the gas distribution channel, dividing it into at least two gas distribution chambers, each connected to at least one air inlet channel. The valve body mounting base has at least three air inlet holes, each connected to an air inlet channel. A control valve installed on the valve body mounting base controls whether gas is introduced into the air inlet channel by controlling the opening and closing of the air inlet holes, thereby controlling the gas flow through the jet holes connected to the gas distribution chambers and adjusting the number of combustion burners. The valve body mounting base is integrally formed with the rod body, facilitating casting and reducing the number of molds, thus improving production efficiency. This application embodiment changes the number of baffles and the number of gas distribution chambers, thereby changing the gear adjustment of the gas water heater, while the external structure of the gas distribution rod remains unchanged, and the outer shell of the casting mold does not need to be changed, thus avoiding increased production costs. Attached Figure Description

[0018] The following description, with reference to the accompanying drawings, outlines an optional embodiment of the gas distributor and gas water heater of this application. The drawings are as follows:

[0019] Figure 1 This is a top view of the combustion chamber shell and gas distribution rod of the gas water heater provided in the embodiments of this application;

[0020] Figure 2 yes Figure 1 Sectional view of AA;

[0021] Figure 3 This is a schematic diagram of the structure of the gas distribution bar in one direction provided in the embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the structure of the gas distribution bar in another direction provided in the embodiment of this application;

[0023] Figure 5 This is a bottom view of the air distribution bar provided in the embodiment of this application;

[0024] Figure 6 yes Figure 5 BB section view in the middle;

[0025] Figure 7 This is a front view of the gas distribution bar provided in an embodiment of this application;

[0026] Figure 8 yes Figure 7 CC section view in the image.

[0027] In the attached diagram: 100: Rod body; 110: Air distribution pipe; 111: Air distribution channel; 1111: First air distribution chamber; 1112: Second air distribution chamber; 1113: Third air distribution chamber; 112: Air jet hole; 113: Partition plate; 114: Connecting support; 1141: Connecting arm; 1142: Fixing platform; 1143: Fixing hole; 115: Positioning structure; 1151: Column; 1152: Positioning part; 116: Mounting platform; 1161: Air jet column; 117: Axial reinforcing rib; 118: Circumferential reinforcing rib; 120: First intake pipe section; 121: First intake passage; 130: Second intake pipe section; 131: Second intake passage; 140: Third intake pipe section; 141: Third intake passage; 200: Valve body mounting seat; 210: Connector; 220: Mounting plate; 221: First intake hole; 222: Second intake hole; 223: Third intake hole; 224: Mounting hole; 300: Mating body; 310: Mating surface; 400: Combustion chamber shell; 410: Base plate; 411: Mounting port; 420: Side panel. Detailed Implementation

[0028] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0029] Secondly, it should be noted that in the description of the embodiments of this application, the terms "inner" and "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of this application.

[0030] Furthermore, it should be noted that, in the description of the embodiments of this application, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0031] To meet the varying water temperature requirements of gas water heaters in winter and summer, existing gas water heaters typically use a gas distributor and control valve to control the number of burners in the combustion chamber, achieving segmented combustion. Depending on the number of burners, the gas distributor of a gas water heater can be divided into three-segment, five-segment, etc. A three-segment gas water heater can achieve three levels of heat adjustment, while a five-segment gas water heater can achieve five levels of heat adjustment. However, for gas water heaters with the same total number of burners, the external structure of the gas distributor differs depending on the segment, requiring multiple molds for processing. This not only affects production efficiency but also leads to high costs.

[0032] In view of this, the gas distributor in this embodiment is provided with a gas distribution channel and at least three air inlet channels. The sidewalls of the gas distribution channels are provided with jet holes, and baffles are provided inside the gas distribution channels. Different gas distribution chambers are created according to the number of baffles, thus changing the number of gas speed adjustments in the gas water heater. A valve body mounting seat is provided on the outside of the air inlet channels for installing a control valve to control the gas flow in and out of the air inlet channels, thereby controlling the number of jet holes for gas injection and thus realizing the gas speed adjustment of the gas water heater. The gas distributor changes the number of gas speed adjustments in the gas water heater by changing the number of internal baffles, while its external structure remains unchanged. Its outer shell mold can be reused, which helps reduce the number of casting molds for the gas distributor, lowers costs, and improves production efficiency.

[0033] The following description, in conjunction with the accompanying drawings, illustrates the optional technical solutions for the gas distribution bar and gas water heater of this application.

[0034] First refer to Figure 1 and Figure 2 , Figure 1 This is a top view of the combustion chamber shell and gas distribution rod of the gas water heater provided in the embodiments of this application; Figure 2 yes Figure 1 Cross-sectional view (AA). This application provides a gas water heater, which includes a combustion chamber housing 400, a burner, and a gas distribution rod. The burner is installed inside the combustion chamber housing 400, where combustion generates high-temperature flue gas. The combustion chamber housing 400 provides space for combustion. Optionally, the combustion chamber housing 400 can be a rectangular housing, including a base plate 410 and side panels 420 disposed on the base plate 410, thus forming a housing structure with a top opening. The top opening allows the high-temperature flue gas to exchange heat and be discharged through a pre-set flue.

[0035] One part of the gas distributor is located outside the combustion chamber housing 400, which facilitates the installation of control valves to control the on / off state and flow rate of the gas; the other part of the gas distributor is located inside the combustion chamber housing 400 to inject gas into the burner.

[0036] The following reference Figures 3 to 8 This describes the structure and function of the gas distribution bar in the embodiments of this application. Figure 3This is a schematic diagram of the structure of the gas distribution bar in one direction provided in the embodiment of this application; Figure 4 This is a schematic diagram of the structure of the gas distribution bar in another direction provided in the embodiment of this application; Figure 5 This is a bottom view of the air distribution bar provided in the embodiment of this application; Figure 6 yes Figure 5 BB section view in the middle; Figure 7 This is a front view of the gas distribution bar provided in an embodiment of this application;

[0037] Figure 8 yes Figure 7 CC section view in the image.

[0038] Reference Figure 2 , Figure 6 and Figure 8 The gas distribution rod includes a rod body 100 and a valve body mounting seat 200. The rod body 100 forms a gas passage, and the valve body mounting seat 200 is used to install a control valve to control the on / off state and flow rate of the gas.

[0039] Specifically, the rod body 100 is provided with a gas distribution channel 111 extending along a preset direction. Multiple jet holes 112 are provided on the side wall of the gas distribution channel 111, and these jet holes 112 are evenly spaced along the preset direction. That is, the multiple jet holes 112 are evenly spaced along the length of the gas distribution channel 111. The number of jet holes 112 is the same as the number of burner burners, and each jet hole 112 corresponds to one burner burner burner burner. In other words, the jet holes 112 correspond one-to-one with the burner burners. By controlling the number of jets emitted from the jet holes 112, the number of burner burners is controlled, thereby achieving the adjustment of the gas water heater's speed.

[0040] The rod body 100 also has at least three air intake channels, each of which is connected to the air distribution channel 111. There can be three, four, or more air intake channels; this embodiment does not limit this. Those skilled in the art can configure the channels according to the number of burner burners and the number of speed settings. The at least three air intake channels are spaced apart along a preset direction, that is, at least three air intake channels are spaced apart along the length of the air distribution channel 111. The spacing between two adjacent air intake channels can be the same or different.

[0041] In this embodiment, multiple air intake channels are provided, which are defined as a first air intake channel 121, a second air intake channel 131, and a third air intake channel 141 for ease of description. The three air intake channels are parallel, and the angle between each air intake channel and the distribution channel 111 is an acute angle. The third air intake channel 141 is located between the first air intake channel 121 and the second air intake channel 131, and the interval between the third air intake channel 141 and the first air intake channel 121 is greater than the interval between the third air intake channel 141 and the second air intake channel 131. Of course, this is not a limitation on the number and location of the air intake channels. This configuration in this embodiment not only facilitates the arrangement of multiple air intake channels but also facilitates the setting of air intake holes on the valve body mounting base 200 for installing the control valve.

[0042] In this embodiment of the application, at least one baffle 113 is provided in the gas distribution channel 111. The baffle 113 divides the gas distribution channel 111 into at least two gas distribution chambers. Each gas distribution chamber is connected to at least one air intake channel. Furthermore, each gas distribution chamber corresponds to at least one jet hole 112. Thus, by controlling the on / off of the gas in the air intake channel through the control valve, the on / off of the gas in the jet hole 112 connected to the gas distribution chamber is controlled, thereby realizing the adjustment of the number of combustion burners.

[0043] This application embodiment changes the number of baffles 113 and the number of gas distribution chambers, thereby changing the gear adjustment of the gas water heater, while the external structure of the gas distribution rod remains unchanged, and the outer shell of the casting mold does not need to be changed, thus avoiding increased production costs.

[0044] The valve body mounting base 200 is integrally formed with the rod body 100, which facilitates casting and processing, reduces the number of molds, and improves production efficiency. The valve body mounting base 200 is provided with at least three air inlets, each of which is connected to an air inlet channel. The control valve installed on the valve body mounting base 200 controls whether gas is introduced into the air inlet channel by controlling the opening and closing of the air inlets.

[0045] For example, corresponding to the first air intake channel 121, the second air intake channel 131, and the third air intake channel 141, the valve body mounting base 200 is provided with three air intake holes, namely the first air intake hole 221, the second air intake hole 222, and the third air intake hole 223. The first air intake hole 221 is connected to the first air intake channel 121, the second air intake hole 222 is connected to the second air intake channel 131, and the third air intake hole 223 is connected to the third air intake channel 141. The cross-section of all three air intake channels is circular, that is, all three air intake channels are circular channels, and all three air intake holes are circular holes.

[0046] Optionally, the diameter of the first intake channel 121 is larger than the diameter of the second intake channel 131, and the diameter of the second intake channel 131 is larger than the diameter of the third intake channel 141. In other words, the first intake channel 121 is wider, while the third intake channel 141 is narrower. Furthermore, the diameter of the first intake hole 221 is larger than the diameter of the second intake hole 222, and the diameter of the second intake hole 222 is larger than the diameter of the third intake hole 223. This means that the size relationship of the three intake holes is consistent with the size relationship of the three intake channels. This arrangement allows the fuel gas to smoothly enter the intake channels through the intake holes, avoiding obstruction of fuel gas flow due to differences in the sizes of the intake holes and intake channels.

[0047] In one embodiment, a baffle 113 is disposed within the air distribution channel 111, located between the first air intake channel 121 and the third air intake channel 141. The number of jet holes 112 on both sides of the baffle 113 is different. The number of jet holes 112 corresponding to the air distribution chamber communicating with the first air intake channel 121 is nine, and the number of jet holes 112 corresponding to the air distribution chamber communicating with the third air intake channel 141 is six. At this time, the gas water heater has three speed settings. When gas enters the third intake channel 141 only through the third intake port 223, the six jet holes 112 corresponding to the third intake channel 141 jet gas, and only six burners burn, so the gas water heater is burning at the low speed. When gas enters the first intake channel 121 only through the first intake port 221, the nine jet holes 112 corresponding to the first intake channel 121 jet gas, and only nine burners burn, so the gas water heater is burning at the medium speed. When gas enters both the first intake channel 121 and the third intake channel 141 at the same time, all the jet holes 112 spray gas into the burners, all burners burn, so the gas water heater is burning at the high speed.

[0048] In another embodiment, two baffles 113 are provided within the air distribution channel 111. One baffle 113 is located between the first air intake channel 121 and the third air intake channel 141, and the other baffle 113 is located between the second air intake channel 131 and the third air intake channel 141. The two baffles 113 divide the air distribution channel 111 into three air distribution chambers, each with a different number of corresponding jet holes 112. The three air distribution chambers are defined as the first air distribution chamber 1111, the second air distribution chamber 1112, and the third air distribution chamber 1113, respectively.

[0049] like Figures 5 to 8As shown, the first gas distribution chamber 1111 is connected to the first air intake channel 121, and nine jet holes 112 are provided in the first gas distribution chamber 1111; the second gas distribution chamber 1112 is connected to the second air intake channel 131, and four jet holes 112 are provided in the second gas distribution chamber 1112; the third gas distribution chamber 1113 is connected to the third air intake channel 141, and two jet holes 112 are provided in the third gas distribution chamber 1113. At this time, the gas water heater has five adjustable settings, including: gas is supplied to the third air intake channel 141 alone; gas is supplied to the second air intake channel 131 alone; gas is supplied to both the second and third air intake channels 131 and 141 simultaneously; gas is supplied to both the third and first air intake channels 141 and 121 simultaneously; and gas is supplied to the first, second, and third air intake channels 121, 131, and 141 simultaneously.

[0050] It should be noted that the embodiments of this application use air inlets and air inlets of different diameters to correspond to the number of jet holes 112. Larger diameter air inlets correspond to larger air inlets and more jet holes 112, while smaller diameter air inlets correspond to smaller air inlets and fewer jet holes 112. This can balance the flow rate of the jet holes 112 corresponding to different air distribution chambers, so that the combustion of different burners is balanced and the combustion effect is improved.

[0051] Therefore, the gas distribution rod of this application embodiment includes a rod body 100 and a valve body mounting base 200. The rod body 100 is provided with a gas distribution channel 111 extending in a preset direction. The side wall of the gas distribution channel 111 is provided with a plurality of jet holes 112, which are evenly spaced in the preset direction. The rod body 100 is also provided with at least three air intake channels, each of which is connected to the gas distribution channel 111. The at least three air intake channels are spaced in the preset direction. At least one partition 113 is provided in the gas distribution channel 111, which divides the gas distribution channel 111 into at least two gas distribution chambers. Each gas distribution chamber is connected to at least one air intake channel. The valve body mounting base 200 is provided with at least three air intake holes, each of which is connected to an air intake channel. The control valve installed on the valve body mounting base 200 controls whether gas is introduced into the air intake channel by controlling the opening and closing of the air intake holes, thereby controlling the gas flow of the jet holes 112 connected to the gas distribution chambers and realizing the adjustment of the number of combustion burners. The valve body mounting base 200 and the rod body 100 are integrally formed, which facilitates casting and processing, reduces the number of molds, and improves production efficiency. In this embodiment, the number of baffles 113 and the number of gas distribution chambers are changed, thereby changing the gear adjustment of the gas water heater, while the external structure of the gas distribution rod remains unchanged. The outer shell of the casting mold does not need to be changed, thus avoiding increased production costs.

[0052] Continue to refer to Figure 3 and Figure 4The rod body 100 includes a distribution pipe section 110 and three intake pipe sections. The distribution pipe section 110 extends along a preset direction and forms an air distribution channel 111 within it. The three intake pipe sections extend along the preset direction and are integrally formed with the distribution pipe section, facilitating casting with the same mold. Each of the three intake pipe sections forms an intake channel. All three intake pipe sections are connected to the valve body mounting seat 200. The three intake pipe sections are defined as a first intake pipe section 120, a second intake pipe section 130, and a third intake pipe section 140, respectively. The first intake pipe section 120 has a first intake channel 121, the second intake pipe section 130 has a second intake channel 131, and the third intake pipe section 140 has a third intake channel 141. Furthermore, the valve body mounting base 200 is connected to the first air intake pipe section 120, the second air intake pipe section 130, and the third air intake pipe section 140 respectively, which facilitates the opening of air intake holes and communication with air intake channels, and helps to simplify the structure and facilitate processing.

[0053] It should be noted that, in the embodiments of this application, both ends of the gas distribution pipe section 110 and the ends of the three air intake pipe sections away from the gas distribution pipe section 110 are open during casting and machining, and plugs need to be installed to seal them. The plugs are connected to the openings by interference fit, threaded connection, etc., which are not limited here.

[0054] Optionally, the third air intake section 140 is connected to the second air intake section 130. This arrangement can improve the structural strength of the smaller-diameter third air intake section 140.

[0055] Optionally, the ends of the three intake pipes are not flush, wherein the end of the third intake pipe 140 is shorter than the ends of the second intake pipe 130 and the first intake pipe 120, in combination with... Figure 6 and Figure 7 The first air inlet 221, the second air inlet 222, and the third air inlet 223 are arranged in a triangular pattern to facilitate the installation and setting of the control valve.

[0056] Combination Figure 3 The gas distribution pipe section 110 has connecting supports 114 at both ends, which are fixedly connected to the burner. Each connecting support 114 includes a connecting arm 1141 connected to the gas distribution pipe section 110 and a fixing platform 1142 formed by bending and extending the free end of the connecting arm 1141; that is, the connecting support 114 has an L-shaped structure. The fixing platform 1142 has fixing holes 1143, and the burner has corresponding connecting holes. Screws are connected to the fixing holes 1143 and the connecting holes respectively, achieving a fixed connection between the gas distribution pipe section 110 and the burner, thereby fixing the position of the jet port 112 relative to the burner's burner baffle.

[0057] To improve the ease of fixing the gas distributor to the burner, a positioning structure 115 is also provided on the gas distributor. Specifically, both ends of the gas distributor section 110 are provided with positioning structures 115 opposite to the connecting support 114. The positioning structure 115 includes a column 1151 connected to the gas distributor section 110 and a positioning part 1152 provided at the end of the column 1151, wherein the positioning part 1152 is a positioning groove or a positioning post. When the positioning part 1152 is a positioning groove, the burner is provided with a positioning post that mates with the positioning groove; when the positioning part 1152 is a positioning post, the burner is provided with a positioning groove that mates with the positioning post. The fixing platform 1142 of the connecting support 114 is positioned away from the positioning structure 115 for easy fixing.

[0058] In one implementation, the side wall of the air distribution pipe 110 is provided with a through hole to form an air jet hole 112, which simplifies the structure. In another implementation, refer to... Figure 3 and Figure 7 An installation platform 116 extending along the length of the air distribution pipe section 110 is provided on the outer surface of the air distribution pipe section 110. A connecting support 114 and a positioning structure 115 are located on both sides of the installation platform 116. Multiple jet columns 1161 are provided on the installation platform 116, evenly spaced along the length of the air distribution pipe section 110. The jet holes 112 are through holes provided on the jet columns 1161 and the sidewalls of the air distribution pipe section 110. This arrangement extends the length of the jet holes 112, facilitating nozzle installation. Furthermore, the installation platform 116 also helps to improve the structural strength of the air distribution pipe section 110.

[0059] To further improve the structural strength of the gas distribution pipe section 110, a plurality of axial reinforcing ribs 117 and a plurality of circumferential reinforcing ribs 118 are provided on the outer side of the gas distribution pipe section 110; the axial reinforcing ribs 117 extend along the length direction of the gas distribution pipe section 110, and the plurality of axial reinforcing ribs 117 are arranged at intervals along the circumference of the gas distribution pipe section 110; the circumferential reinforcing ribs 118 extend along the circumference of the gas distribution pipe section 110, and the plurality of circumferential reinforcing ribs 118 are arranged at intervals along the axial direction of the gas distribution pipe section 110. In this embodiment, the number of axial reinforcing ribs 117 and circumferential reinforcing ribs 118 is not limited.

[0060] Reference Figure 4 and Figure 5The valve body mounting base 200 of this application embodiment includes a connector 210 connected to three air inlet pipes and a mounting plate 220 disposed at the end of the connector 210. The mounting plate 220 and the connector 210 are provided with air inlet holes, that is, through holes penetrating the mounting plate 220, the connector 210, and the air inlet pipes to allow gas to enter the air intake passage. The mounting plate 220 is provided with multiple mounting holes 224 for fixing the control valve; that is, the mounting holes 224 are simply through holes penetrating the mounting plate 220 and can bypass the air inlet holes. This application embodiment does not limit the arrangement position of the mounting holes 224 on the mounting plate 220.

[0061] In order to enable the gas distribution rod to mate with the combustion chamber housing 400, the gas distribution rod in this embodiment of the application further includes a mating body 300. The mating body 300 is connected to the three intake pipes. The mating body 300 is located between the valve body mounting seat 200 and the gas distribution pipe 100. The peripheral side surface of the mating body 300 forms a mating surface 310.

[0062] Combination Figure 1 and Figure 2 The bottom plate 410 of the combustion chamber housing 400 is provided with an installation port 411, and the mating surface 310 mates with the installation port 411 so that the gas distribution pipe 110 and the air intake pipe between the gas distribution pipe 110 and the mating body 300 are located inside the combustion chamber housing 400 to provide fuel gas for the combustion of the burner.

[0063] The embodiment of this application, by setting the mating body 300, not only facilitates the mating with the mounting port 411 and improves the convenience of installing the air distribution rod, but also helps to improve the structural strength of the air distribution rod.

[0064] In summary, the gas water heater of this application embodiment includes a gas distribution rod comprising a rod body 100 and a valve body mounting base 200. The rod body 100 has a gas distribution channel 111 extending in a preset direction. The sidewall of the gas distribution channel 111 has multiple jet holes 112, which are evenly spaced along the preset direction. The rod body 100 also has at least three air inlet channels, each communicating with the gas distribution channel 111. These at least three air inlet channels are spaced apart along the preset direction. At least one baffle 113 is provided within the gas distribution channel 111, dividing it into at least two gas distribution chambers. Each gas distribution chamber is connected to at least one air inlet channel. The valve body mounting base 200 has at least three air inlet holes, each connected to an air inlet channel. A control valve installed on the valve body mounting base 200 controls whether gas is introduced into the air inlet channel by controlling the opening and closing of the air inlet holes, thereby controlling the gas flow through the jet holes 112 connected to the gas distribution chambers and adjusting the number of combustion burners. The valve body mounting base 200 is integrally formed with the rod body 100, facilitating casting, reducing the number of molds, and improving production efficiency. In this embodiment, by changing the number of baffles 113, the number of gas distribution chambers is changed, thereby altering the gas level adjustment of the gas water heater. The external structure of the gas distribution rod remains unchanged, and the outer shell of the casting mold does not need to be altered, avoiding increased production costs.

[0065] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A gas distribution rod for a gas water heater, the gas distribution rod comprising: The utility model relates to a gas hot water heater's gas distribution rod, including: The rod body and valve body mounting seat are integrally formed, and at least three air inlet holes are arranged on the valve body mounting seat, and each air inlet hole communicates with one air inlet channel. The air inlet channel is provided with three air inlet channels, and the three air inlet channels are respectively a first air inlet channel, a second air inlet channel and a third air inlet channel. The diameter of the first air inlet channel is greater than that of the second air inlet channel, the diameter of the second air inlet channel is greater than that of the third air inlet channel, and the third air inlet channel is located between the second air inlet channel and the first air inlet channel. The diameter of the first air inlet hole is greater than that of the second air inlet hole, and the diameter of the second air inlet hole is greater than that of the third air inlet hole. The first air inlet channel corresponds to the first air inlet hole, the second air inlet channel corresponds to the second air inlet hole, the third air inlet channel corresponds to the third air inlet hole, and the number of the first air inlet channel corresponding to the air injection hole is greater than that of the second air inlet channel corresponding to the air injection, and the number of the second air inlet channel corresponding to the air injection hole is greater than that of the third air inlet channel corresponding to the air injection. The rod body includes a gas distribution pipe part and three air inlet pipe parts, the gas distribution channel is formed in the gas distribution pipe part, and one air inlet channel is respectively formed in the three air inlet pipe parts. The gas distribution rod further includes a matching body, the matching body is connected with the three air inlet pipe parts, the matching body is located between the valve body mounting seat and the gas distribution pipe part, a matching surface is formed on the circumferential side surface of the matching body, and the matching surface is used for matching with a mounting port of a combustion chamber shell. The gas distribution pipe part extends along the preset direction, the three air inlet pipe parts extend along the preset direction, and the three air inlet pipe parts are integrally formed with the gas distribution pipe part.

2. The gas distribution rod of claim 1, wherein, The two ends of the gas distribution pipe part are respectively provided with connecting supports, the connecting supports include connecting arms connected with the gas distribution pipe part and fixing tables formed by bending and extending free ends of the connecting arms, and fixing holes are arranged on the fixing tables.

3. The gas distribution rod of claim 2, wherein, The utility model relates to a gas hot water heater's gas distribution rod, including: The rod body and valve body mounting seat are integrally formed, and at least three air inlet holes are arranged on the valve body mounting seat, and each air inlet hole communicates with one air inlet channel. The air inlet channel is provided with three air inlet channels, and the three air inlet channels are respectively a first air inlet channel, a second air inlet channel and a third air inlet channel. The diameter of the first air inlet channel is greater than that of the second air inlet channel, the diameter of the second air inlet channel is greater than that of the third air inlet channel, and the third air inlet channel is located between the second air inlet channel and the first air inlet channel. The diameter of the first air inlet hole is greater than that of the second air inlet hole, and the diameter of the second air inlet hole is greater than that of the third air inlet hole. The first air inlet channel corresponds to the first air inlet hole, the second air inlet channel corresponds to the second air inlet hole, the third air inlet channel corresponds to the third air inlet hole, and the number of the first air inlet channel corresponding to the air injection hole is greater than that of the second air inlet channel corresponding to the air injection, and the number of the second air inlet channel corresponding to the air injection hole is greater than that of the third air inlet channel corresponding to the air injection. The rod body includes a gas distribution pipe part and three air inlet pipe parts, the gas distribution channel is formed in the gas distribution pipe part, and one air inlet channel is respectively formed in the three air inlet pipe parts. The gas distribution rod further includes a matching body, the matching body is connected with the three air inlet pipe parts, the matching body is located between the valve body mounting seat and the gas distribution pipe part, a matching surface is formed on the circumferential side surface of the matching body, and the matching surface is used for matching with a mounting port of a combustion chamber shell. The gas distribution pipe part extends along the preset direction, the three air inlet pipe parts extend along the preset direction, and the three air inlet pipe parts are integrally formed with the gas distribution pipe part. The two ends of the gas distribution pipe part are respectively provided with connecting supports, the connecting supports include connecting arms connected with the gas distribution pipe part and fixing tables formed by bending and extending free ends of the connecting arms, and fixing holes are arranged on the fixing tables.

4. The gas distributor rod of claim 3, wherein, The two ends of the gas distribution pipe part are provided with positioning structures opposite to the connecting supports, the positioning structures comprise a column body connected with the gas distribution pipe part and a positioning part provided at the end of the column body, and the positioning part is a positioning groove or a positioning column.

5. The gas distribution rod of any of claims 2-4, wherein, The valve body mounting seat comprises a connecting body connected with the three gas inlet pipe parts and a mounting plate provided at the end of the connecting body, and the mounting plate and the connecting body are provided with the gas inlet holes; and the mounting plate is provided with a plurality of mounting holes.

6. The gas distribution rod of any of claims 2-4, wherein, The outer side of the gas distribution pipe part is provided with a plurality of axial reinforcing ribs and a plurality of circumferential reinforcing ribs; the axial reinforcing ribs extend along the length direction of the gas distribution pipe part, and a plurality of the axial reinforcing ribs are arranged at intervals along the circumferential direction of the gas distribution pipe part; the circumferential reinforcing ribs extend along the circumferential direction of the gas distribution pipe part, and a plurality of the circumferential reinforcing ribs are arranged at intervals along the axial direction of the gas distribution pipe part.

7. The gas distribution rod of any of claims 1-4, wherein, The cross sections of the three gas inlet channels are circular; and the three gas inlet holes are circular holes.

8. The gas distributor rod of claim 7, wherein, One of the baffles is arranged in the gas distribution channel, and the baffle is located between the first gas inlet channel and the third gas inlet channel, and the numbers of the gas injection holes on the two sides of the baffle are different. Alternatively, Two of the baffles are arranged in the gas distribution channel, one of the baffles is located between the first gas inlet channel and the third gas inlet channel, and the other baffle is located between the second gas inlet channel and the third gas inlet channel; and the two baffles divide the gas distribution channel into three gas distribution cavities, and the numbers of the corresponding gas injection holes in each gas distribution cavity are different.

9. A gas water heater, characterised by The application further provides a combustion chamber, a combustor and the gas distribution rod, the combustion chamber is provided with a mounting opening, the combustor is mounted in the combustion chamber, the gas distribution rod is matched with the mounting opening, and part of the gas distribution rod extends into the combustion chamber, and each gas injection hole of the gas distribution rod is communicated with one row of burners of the combustor. ​

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