Atomizing nozzle and condensing gas water heater

Abstract

The utility model relates to a kind of atomizing nozzle and condensing gas water heater, atomizing nozzle is arranged in condensing gas water heater, including atomizing body, water inlet end and air inlet end.The atomizing body is formed with atomizing passage in it, and the top of atomizing passage is open structure;Water inlet end, air inlet end are arranged on atomizing body, and water inlet passage is formed in water inlet end and is communicated with atomizing passage;Air inlet end is located above water inlet end, and air inlet passage is formed in air inlet end and is communicated with atomizing passage;The overall structure of atomizing nozzle is simple, and processing cost is low, and it is convenient to maintain;Condensate is input into atomizing nozzle under the action of air pump through air inlet end, and the negative pressure formed in atomizing nozzle provides power for condensate suction into atomizing nozzle and shoulder condensate disperses vaporization, and condensate is hit and dispersed into mist after being hit and dispersed into mist, and is discharged outdoor with flue gas.

Description

Technical Field

[0001] This disclosure belongs to the field of electrical equipment technology, and in particular relates to an atomizing nozzle and a condensing gas water heater. Background Technology

[0002] Condensing gas water heaters are among the most energy-efficient and environmentally friendly products available today. Compared to ordinary gas water heaters, condensing gas water heaters have an additional condensing heat exchanger that preheats cold water by absorbing high-temperature flue gas, thereby improving heat conversion efficiency and saving on gas costs.

[0003] Condensing gas water heaters use flue gas before discharge to preheat low-temperature liquids, making them more energy-efficient and environmentally friendly. The final discharged flue gas temperature is lower, resulting in less heat being transferred to the unit and reducing its impact. However, during the preheating process of the condensing heat exchanger, condensate is produced. This condensate contains corrosive substances such as sulfur, which needs to be collected and discharged separately. This results in a larger overall size and more complex piping system for condensing water heaters.

[0004] Existing condensing gas water heaters that do not require condensate discharge have complex internal structures in their atomizing nozzles, resulting in high maintenance and repair costs. The atomizing nozzles are generally used in conjunction with a water pump to pump condensate into the nozzles. The water pumps are large in size, occupy a lot of installation space, and are noisy, leading to a poor user experience. Utility Model Content

[0005] The purpose of this utility model is to provide an atomizing nozzle and a condensing gas water heater to solve the problems existing in the prior art, such as the complex internal structure of the atomizing nozzle, high manufacturing and maintenance costs, and the reliance on a water pump to deliver condensate to the atomizing nozzle, resulting in large overall size and high operating noise.

[0006] To achieve the above-mentioned objectives, the present invention employs the following technical solution: In one aspect, this utility model provides an atomizing nozzle, comprising: The atomizing body has an atomizing channel formed inside, and the top of the atomizing channel has an open structure; A water inlet is provided on the atomizing body, and a water inlet channel communicating with the atomizing channel is formed inside the water inlet. An air inlet is disposed on the atomizing body and located above the water inlet, and an air inlet channel is formed inside the air inlet that communicates with the atomizing channel.

[0007] Compared with the prior art, the advantages and positive effects of this utility model are: The atomizing nozzle includes an atomizing body, a water inlet end, and an air inlet end. An atomizing channel is formed within the atomizing body, with the top of the atomizing channel open to transport the flue gas outward. The water inlet end and the air inlet end are respectively connected to the side wall of the atomizing body, with the water inlet end located above the air inlet end. The atomizing body, water inlet end, and air inlet end can be manufactured separately and then assembled. The overall structure of the atomizing nozzle is simple, with low processing costs and convenient maintenance.

[0008] In some embodiments of this application, the atomizing body has a water supply channel and an air supply channel that communicate with the atomizing channel, the water inlet is detachably connected to the water supply channel, and the air inlet is detachably connected to the air supply channel.

[0009] The detachable connection method makes the overall processing of the atomizing nozzle more convenient, and the assembly difficulty is low, making maintenance easy.

[0010] In some embodiments of this application, the water inlet and the air inlet are disposed on the sidewall of the atomizing body.

[0011] In some embodiments of this application, the end of the atomizing body is formed with a processing plane, and the spray nozzle of the atomizing channel is formed on the processing plane.

[0012] The end of the atomizing body is a processing plane, which facilitates the processing and shaping of the atomizing body.

[0013] In some embodiments of this application, the water inlet is connected to the water delivery channel by means of a threaded connection or an interference fit; The air inlet is connected to the air delivery channel by means of threaded connection or interference fit.

[0014] In some embodiments of this application, the outer wall of the atomizing body is a cylindrical structure, and an installation cross-section parallel to its axial direction is formed on the outer wall of the atomizing body. The ends of the air inlet and the water inlet are in contact with the installation cross-section.

[0015] The atomizer body has an installation cut surface on its side wall. When the air inlet and water inlet are installed, the contact area between their end faces and the installation cut surface is larger, resulting in better sealing.

[0016] On the other hand, this application also proposes a condensing gas water heater that includes the atomizing nozzle mentioned in any of the above claims.

[0017] In some embodiments of this application, the condensing gas water heater further includes: The outer casing has an internal mounting cavity formed therein; A combustion chamber is disposed within the mounting cavity, and a gas pipeline is connected externally to the combustion chamber. A heat exchange chamber is located above the combustion chamber and communicates with the combustion chamber; A condensation chamber is located beside the heat exchange chamber and communicates with the heat exchange chamber; An air pump is disposed within the mounting cavity; The condenser chamber is provided with a water collection box below it to collect the condensate formed in the condenser chamber; the atomizing nozzle is provided above the condenser chamber and is connected to the water collection box via a water pipe and to the air pump via an air pipe.

[0018] The condensate in the water collection box is fed into the atomizing nozzle through water pipes. After the air pump is turned on, high-pressure gas is generated and transported to the atomizing nozzle through air pipes. The negative pressure formed in the atomizing nozzle provides the power for the condensate to be drawn into the nozzle. The high-pressure gas impacts and disperses the condensate into mist, which is then discharged outdoors with the flue gas. This condensate treatment method does not require the design of condensate discharge and treatment pipelines and devices. The whole machine is small in size and easy to install. In addition, the timely condensate treatment can also avoid problems such as condensate freezing in low winter temperatures.

[0019] In some embodiments of this application, a smoke exhaust chamber is provided above the condensation chamber, and a smoke exhaust pipe assembly is connected to the smoke exhaust chamber. The other end of the smoke exhaust pipe assembly extends to the outside, and the atomizing nozzle is fixed in the smoke exhaust chamber or the smoke exhaust pipe assembly.

[0020] In some embodiments of this application, the atomizing nozzle is fixed in the smoke exhaust chamber by a connector. The connector includes a connecting groove extending toward the atomizing nozzle and a connecting outer edge located around the connecting groove. A plurality of fastening holes are formed on the connecting outer edge. The fastening holes are detachably connected to the inner wall of the smoke exhaust chamber by fasteners.

[0021] If the atomizing nozzle is installed in the smoke exhaust chamber, the flue gas output by the atomizing nozzle can be directly delivered to the smoke exhaust chamber and then output to the outside of the water heater, saving space and reducing the need for pipe layout.

[0022] In some embodiments of this application, the connector includes a connecting groove extending toward the atomizing nozzle and a connecting outer edge located around the connecting groove. A plurality of fastening holes are dispersedly formed on the connecting outer edge, and the fastening holes are detachably connected to the inner wall of the exhaust chamber by fasteners.

[0023] The conformal surface on the outer edge of the connection can make better contact with the inner wall of the smoke exhaust chamber, increasing the connection contact area. Multiple fastening holes are distributed on the outer edge of the connection to achieve connection and fixation with the smoke exhaust chamber.

[0024] In some embodiments of this application, the connecting groove is provided with connecting holes adapted to the positions of the water inlet and the air inlet, and an intermediate connector is provided on each connecting hole. The intermediate connectors are used to connect the water inlet to the water inlet pipe and the air inlet to the air inlet pipe, respectively.

[0025] Intermediate connectors can improve the connection efficiency between water inlet and air inlet heads and water inlet pipes and air inlet pipes, and are easy to manufacture, which helps to reduce manufacturing costs.

[0026] In some embodiments of this application, each of the intermediate connecting members includes a limiting portion and a first connecting end and a second connecting end formed on both sides of the limiting portion. The first connecting end is connected to the water inlet end or the air inlet end, and the second connecting end is used to connect to the water inlet pipe or the air inlet pipe. The connecting groove is located between the limiting portion and the atomizing nozzle.

[0027] The limiting part on the intermediate connector is used to limit the installation position of the connecting groove, thereby improving the stability and accuracy of the installation.

[0028] In some embodiments of this application, the water inlet end and the air inlet end are respectively formed with internal thread sections, and the outer wall of the first connecting end is formed with an external thread section. The internal thread section and the external thread section are threaded together to realize the connection between the intermediate connecting member and the atomizing nozzle.

[0029] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a structural diagram of the atomizing nozzle proposed in this utility model; Figure 2 This is a diagram showing the disassembled atomizing nozzle; Figure 3 This is a cross-sectional view of the connection between the atomizing nozzle and the intermediate connector; Figure 4 This is a schematic diagram of the internal overall structure of an embodiment of the condensing gas water heater proposed in this utility model; Figure 5This is a schematic diagram showing the connection of the air pump, condenser, smoke exhaust chamber, and smoke exhaust pipe assembly; Figure 6 This is a structural diagram of the smoke exhaust chamber; Figure 7 This is a breakdown diagram of the smoke exhaust chamber and atomizing nozzles; Figure 8 This is a structural diagram of the connector; Figure 9 This is a structural diagram of the intermediate connector; Figure 10 This is a 3D structural diagram of the smoke exhaust pipe assembly; Figure 11 This is a cross-sectional view of the smoke exhaust pipe assembly; Figure 12 This is a schematic diagram of the valve body assembly in the closed state; Figure 13 This is a schematic diagram showing the valve body and valve seat disassembled; Figure 14 This is a schematic diagram of the valve body assembly in the open state; The reference numerals and their corresponding component names in the figure are as follows: 100. Outer casing; 110. Water inlet port; 120. Water outlet port; 200. Combustion chamber; 210. Heat exchange chamber; 300. Fan room; 400. Condensation chamber; 500. Water collection box; 510. Water pipe fittings; 600. Smoke Exhaust Room; 700. Air pump; 710. Air fittings; 720. Atomizing nozzle; 721. Water inlet; 722. Air inlet; 723. Atomizing body; 7231. Atomizing channel; 7232. Air jet hole; 724. Mounting section; 7241. Water supply channel; 7242. Air supply channel; 725. Connecting end; 730. Connector; 731. Connecting groove; 7311. First connecting hole; 7312. Second connecting hole; 732. Connection Outer edge; 7321, fastening hole; 740. Valve body assembly; 741. Valve seat; 7411. Lower limit part; 7412. Positioning part; 7413. Shaft hole; 7414. Upper limit part; 742. Valve body; 7421. Connecting shaft; 7422. Valve plate; 750. Intermediate connector; 751. Limiting part; 752. First connecting end; 753. Second connecting end; 800. Water supply pipe; 810. Intermediate pipe; 900. Exhaust pipe assembly; 910. Horizontal exhaust pipe; 911. Exhaust pipe section; 912. Exhaust outlet; 920. Exhaust riser; 930. Transfer pipe; 940. Sealing component; 941. Diversion section. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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 mechanical connection or an electrical 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 this utility model according to the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0037] refer to Figure 1 , Figure 2 This application proposes an atomizing nozzle and a condensing gas water heater. The atomizing nozzle 720 is installed inside the condensing gas water heater and is used to vaporize the condensate formed in the condenser and discharge it with the flue gas. The atomizing nozzle 720 specifically includes an atomizing body 723, a water inlet end 721, and an air inlet end 722.

[0038] Combination Figure 3 The atomizing body 723 has an atomizing channel 7231 inside, and the top of the atomizing channel 7231 is an open structure for outputting smoke.

[0039] Both the water inlet end 721 and the air inlet end 722 are provided on the atomizing body 723. The air inlet end 722 is located above the water inlet end 721. The water inlet end 721 has a water inlet channel that communicates with the atomizing channel 7231, and the air inlet end 722 has an air inlet channel that communicates with the atomizing channel 7231.

[0040] In some embodiments of this application, both the water inlet 721 and the air inlet 722 are disposed on the side wall of the atomizing body 723.

[0041] The external shape of the atomizing body 723 can be designed as cylindrical or other shapes. The atomizing channel 7231 extends along the height direction of the atomizing body 723. Specifically, the atomizing channel 7231 is set on the axis of the atomizing body 723.

[0042] The end of the atomizing body 723 has a machined surface, and the spray nozzle of the atomizing channel 7231 is formed on the machined surface.

[0043] The end of the atomizing body 723 is a machining plane, which facilitates the machining and shaping of the atomizing body 723.

[0044] The bottom of the atomizing channel 7231 is a closed structure. The air inlet end 722 and the water inlet end 721 respectively form a through air inlet channel and a water inlet channel. The air inlet end 722 is connected to the bottom of the atomizing channel 7231, and the water inlet end 721 is located above the air inlet end 722. This allows the flue gas input from the air inlet end 722 to form a negative pressure as it is transported upward along the atomizing channel 7231, drawing the condensate in the water receiving tray into the atomizing channel 7231. The condensate drawn into the atomizing channel 7231 is then dispersed and output from the top of the atomizing channel 7231.

[0045] The atomizing body 723, the water inlet 721, and the air inlet 722 can be integrally formed or connected by assembly.

[0046] The atomizing body 723, water inlet 721 and air inlet 722 are manufactured and assembled separately, which helps to reduce processing costs and facilitate maintenance.

[0047] In some embodiments of this application, specific references are made. Figure 2 The atomizing body 723 has a water supply channel 7241 and an air supply channel 7242 that are connected to the atomizing channel 7231 on its side wall. The water inlet end 721 is detachably connected to the water supply channel 7241, and the air inlet end 722 is detachably connected to the air supply channel 7242.

[0048] The detachable connection makes the overall processing of the 720 atomizing nozzle more convenient, and the assembly is easier, making maintenance easier.

[0049] In some embodiments of this application, the water inlet 721 is connected to the water delivery channel 7241 by means of a threaded connection or an interference fit.

[0050] The air inlet end 722 is connected to the air delivery channel 7242 by means of threaded connection or interference fit.

[0051] When the water inlet end 721 and the air inlet end 722 are detachably connected to the atomizing body 723 by means of threaded connection, the water supply channel 7241 and the air supply channel 7242 are designed to have at least one section of internal thread. The end of the water inlet end 721 and the air inlet end 722 connected to the atomizing body 723 is formed with a connecting end 725. The connecting end 725 is formed with an external thread. The size of the connecting end 725 is smaller than that of the water inlet end 721 and the air inlet end 722.

[0052] During installation, the connecting ends 725 on the water inlet end 721 and the air inlet end 722 are threaded into the water supply channel 7241 and the air supply channel 7242, respectively.

[0053] To facilitate the rotation of the water inlet end 721 and the air inlet end 722, the outer walls of the water inlet end 721 and the air inlet end 722 are designed as hexagonal prism structures. Alternatively, an operating end face is provided on the outer wall of the water inlet end 721 and the air inlet end 722 to facilitate the rotation operation by the operator during loading and unloading.

[0054] In some embodiments of this application, the outer wall of the atomizing body 723 is a cylindrical structure, and an installation cut surface 724 parallel to its axial direction is formed on the outer wall of the atomizing body 723. The ends of the air inlet end 722 and the water inlet end 721 are in contact with the installation cut surface 724.

[0055] In other embodiments, when the water inlet 721 and / or the air inlet 722 are connected to the atomizing body 723 by an interference fit, the size of the connecting end 725 on the water inlet 721 and the air inlet 722 is designed to be no smaller than the water delivery channel 7241 and the air delivery channel 7242, so that the connecting end 725 is interference fitted to the atomizing body 723.

[0056] In some other embodiments, an installation cut surface 724 is formed on the side wall of the atomizing body 723. The installation cut surface 724 is parallel to the central axis of the atomizing body 723. The connection port of the water supply channel 7241 and the air supply channel 7242 is located on the installation cut surface 724. Therefore, when the air inlet end 722 and the water inlet end 721 are installed, the contact area between their end faces and the installation cut surface 724 is larger, and the sealing performance is better.

[0057] refer to Figure 4 , Figure 5 On the other hand, this application also proposes a condensing gas water heater, which, in addition to the atomizing nozzle 720 mentioned above, also includes an outer casing 100, a combustion chamber 200, a heat exchange chamber 210, a condensing chamber 400, and a water collection box 500.

[0058] An installation cavity is formed inside the outer casing 100. The combustion chamber 200, heat exchange chamber 210 and condenser 400 are disposed in the installation cavity, and the water collection box 500 is specifically disposed below the condenser 400.

[0059] The atomizing nozzle 720 is located above the condensation chamber 400. The atomizing nozzle 720 is connected to the water collection box 500 through the water pipe fitting 510 and to the air pump 700 through the air pipe fitting 710.

[0060] After the air pump 700 is turned on, high-pressure gas is generated and transported to the atomizing nozzle 720 through the air pipe 710. The negative pressure generated in the atomizing nozzle 720 provides power for the condensate to be drawn into the atomizing nozzle 720. The high-pressure gas impacts and disperses the condensate into mist, which is then discharged outdoors along with the smoke through the jet hole 7232.

[0061] This condensate treatment method eliminates the need for condensate drainage and treatment pipelines and devices, resulting in a small overall size and easy installation. In addition, timely condensate treatment can prevent problems such as condensate freezing in low-temperature winter conditions.

[0062] The outer casing 100 has a water inlet port 110 and a water outlet port 120 at its bottom. The water inlet port 110 is connected to an external water inlet pipe, and the water outlet port 120 is connected to an external water outlet pipe.

[0063] One end of the water supply pipe 800 located in the installation cavity is connected to the water inlet port 110, and the other end passes through the condensation chamber 400 and the heat exchange chamber 210 in sequence before being connected to the water inlet port 110.

[0064] The low-temperature liquid is transported to the condenser 400 through the water pipe 800 to exchange heat with the high-temperature flue gas in the condenser 400 for the first time. The water that has been heated by the heat exchange is transported to the heat exchange chamber 210 through the intermediate pipe 810 for the second heat exchange and heating. The high-temperature water that has been heated by the second heat exchange is then output to the water-using terminal.

[0065] The combustion chamber 200 is connected to a gas pipeline, which supplies gas into the combustion chamber 200. The gas combustion produces high-temperature flue gas, which is then transported to the heat exchange chamber 210 to further heat the preheated liquid in the water supply pipe 800.

[0066] The heat exchange chamber 210 is specifically located above the combustion chamber 200 and is connected to the combustion chamber 200. A fan chamber 300 is located above the heat exchange chamber 210. A fan component is installed in the fan chamber 300. Driven by the fan component, the high-temperature flue gas generated by combustion in the combustion chamber 200 is directly transported upward to the heat exchange chamber 210.

[0067] The condenser 400 is located beside the heat exchanger 210 and is connected to the heat exchanger 210. The flue gas in the heat exchanger 210 continues to be transported to the condenser 400.

[0068] Since the condensing heat exchanger lowers the temperature of the flue gas flowing through it, the water vapor in the flue gas will condense into condensate. Correspondingly, a water collection box 500 is provided below the condensing chamber 400 to collect the condensate formed in the condensing chamber 400.

[0069] Specifically, the air pump 700 and the condenser chamber 400 are located on both sides of the heat exchange chamber 210.

[0070] The air pump 700 and the condenser chamber 400 are located on both sides of the heat exchange chamber 210, which can make full use of the space in the installation cavity. The reasonable equipment layout helps to reduce the overall size of the condensing gas water heater and reduce the installation space.

[0071] In addition, it can shorten the laying path of water fitting 510 and gas fitting 710, and simplify the pipeline.

[0072] The condenser chamber 400 is also connected to the smoke exhaust chamber 600. Specifically, the input end of the smoke exhaust chamber 600 is connected to the condenser chamber 400, and the output end of the smoke exhaust chamber 600 extends to the outside of the outer casing 100 through the smoke exhaust pipe assembly 900.

[0073] The high-temperature flue gas generated by the combustion of gas in the combustion chamber 200 is heat exchanged in the heat exchange chamber 210 and then transported to the condensation chamber 400 to preheat with the low-temperature liquid. After that, it is transported to the exhaust chamber 600 and discharged from the output end of the exhaust chamber 600.

[0074] Above the smoke exhaust chamber 600, there is also a smoke exhaust pipe assembly 900, the other end of which extends to the outside. The atomizing nozzle 720 is fixed inside the smoke exhaust chamber 600 or the smoke exhaust pipe assembly 900.

[0075] refer to Figures 6-8 In order to further save installation space in the installation cavity and reduce the overall size of the equipment, the atomizing nozzle 720 is fixed in the smoke exhaust chamber 600 by the connector 730.

[0076] In some embodiments of this application, the connector 730 includes a connecting groove 731 extending toward the atomizing nozzle 720 and a connecting outer edge 732 located around the connecting groove 731. The connecting outer edge 732 is detachably connected to the inner wall of the smoke exhaust chamber 600.

[0077] The connector 730 serves as a transition piece between the atomizing nozzle 720 and the smoke exhaust chamber 600. It is stably connected to the smoke exhaust chamber 600 via the connecting outer edge 732 and fixed to the atomizing nozzle 720 via the connecting groove 731, so that the atomizing nozzle 720 is stably connected within the smoke exhaust chamber 600.

[0078] Specifically, the bottom of the connecting groove 731 is a planar structure, and a connecting hole is formed on the connecting groove 731. The connecting hole specifically includes a first connecting hole 7311 that is connected to the water inlet end 721 and a second connecting hole 7312 that is connected to the air inlet end 722. The first connecting hole 7311 and the second connecting hole 7312 are arranged vertically on the connecting groove 731.

[0079] The connection hole is specifically formed at the bottom of the connection groove 731 and is connected and fixed to the atomizing nozzle 720 through the intermediate connector 750.

[0080] For details, please refer to Figure 3 , Figure 9 The water inlet 721 of the atomizing nozzle 720 is detachably connected to the water pipe 510 via the intermediate connector 750, and the air inlet 722 is detachably connected to the air pipe 710 via the intermediate connector 750.

[0081] Each intermediate connector 750 has a through channel to facilitate the transport of condensate or flue gas.

[0082] refer to Figure 9 Each intermediate connector 750 includes a limiting part 751 and a first connecting end 752 and a second connecting end 753 formed on both sides of the limiting part 751. The first connecting end 752 is connected to the water inlet end 721 or the air inlet end 722, and the second connecting end 753 is used to connect to the water inlet pipe or the air inlet pipe.

[0083] The size of the limiting part 751 is larger than that of the first connecting end 752 and the second connecting end 753, and the outer wall of the limiting part 751 is hexagonal prism, or an operating surface is formed on the outer wall of the limiting part 751 to facilitate installation by the operator.

[0084] In the installed state, the connecting groove 731 is located between the limiting part 751 and the atomizing nozzle 720. In addition to limiting the connecting groove 731, the limiting part 751 also seals the connecting hole on the connecting groove 731 to prevent smoke from being output from the connecting hole.

[0085] In some embodiments of this application, the first connecting end 752 is threadedly connected to the water inlet end 721 and the air inlet end 722. Specifically, the water inlet end 721 and the air inlet end 722 are respectively formed with internal thread sections, and the outer wall of the first connecting end 752 is formed with an external thread section. The internal thread section and the external thread section are threadedly engaged to realize the connection between the intermediate connecting member 750 and the atomizing nozzle 720.

[0086] During installation, first fix the first connecting end 752 on the intermediate connector 750 through the connecting hole on the connecting groove 731 to the water inlet end 721 or the air inlet end 722. Then, attach the air pipe fitting 710 or the water pipe fitting 510 to the second connecting end 753.

[0087] In order to improve the connection effect between the water pipe fitting 510, the air pipe fitting 710 and the second connecting end 753, the outer wall of the second connecting end 753 is designed to gradually shrink in the direction away from the limiting part 751, so that the air pipe fitting 710 and the water pipe fitting 510 can achieve a tight fit with the second connecting end 753 during the sleeve process.

[0088] In some embodiments of this application, a plurality of connecting protrusions are sequentially provided on the outer wall of the second connecting end 753 along the length direction of the second connecting end 753. Along the direction away from the limiting part 751, the outer wall of each connecting protrusion is recessed, and along the direction away from the limiting part 751, the maximum outer wall size of each connecting protrusion decreases sequentially, so as to gradually strengthen the connection between the air pipe fitting 710 and the water pipe fitting 510, improve the sealing effect and the stability of the connection.

[0089] The exhaust chamber 600 is a cylindrical structure with open top and bottom. The top of the exhaust chamber 600 is connected to the exhaust pipe assembly 900, and the bottom is connected to the valve body assembly 740. The valve body assembly 740 is used to ensure that the flue gas is transported unidirectionally from the condensation chamber 400 to the exhaust chamber 600 to avoid flue gas backflow.

[0090] The exhaust pipe assembly 900 extends from the top of the outer casing 100 to the outside of the outer casing 100, and is used to output the flue gas inside the exhaust chamber 600 to the outside.

[0091] refer to Figure 10 , Figure 11 The smoke exhaust pipe assembly 900 includes a smoke exhaust riser 920, a transition pipe 930, and a smoke exhaust horizontal pipe 910. The transition pipe 930 is used to connect the smoke exhaust riser 920 and the smoke exhaust horizontal pipe 910 to achieve an angled connection between the smoke exhaust riser 920 and the smoke exhaust horizontal pipe 910.

[0092] Generally, gas water heaters are installed vertically, that is, the exhaust chamber 600 is arranged vertically, and the exhaust pipe group 900 extends from the outer casing 100 to a certain distance from the outer casing 100 after it is output, so as to avoid the output flue gas being returned.

[0093] Specifically, the input end of the smoke exhaust riser 920 is connected to the smoke exhaust chamber 600, the output end is connected to one end of the adapter pipe 930, and the other end of the adapter pipe 930 is connected to the input end of the smoke exhaust horizontal pipe 910.

[0094] The connecting pipe 930 is used to connect the smoke exhaust riser 920 and the smoke exhaust horizontal pipe 910 so that the smoke exhaust riser 920 and the smoke exhaust horizontal pipe 910 are set at an angle, which facilitates the discharge of smoke along the target path and reduces the impact of smoke on residents.

[0095] The end of the horizontal exhaust pipe 910 is provided with an exhaust pipe section 911, and exhaust ports 912 are formed on the exhaust pipe section 911. In order to improve the efficiency of flue gas output, the exhaust ports 912 are arranged in an array along the periphery and axial direction of the exhaust pipe section 911, and the flue gas is output from each exhaust port 912.

[0096] A hydrophobic coating is provided on the outer wall of the flue section 911. The hydrophobic coating uses hydrophobic paint, specifically a type of low surface energy paint whose static water contact angle on a smooth surface is greater than 90°.

[0097] The addition of a hydrophobic coating to the outside of the flue gas horizontal pipe 910 can improve the hydrophobic effect, reduce the amount of water condensed from the flue gas and adhering to the flue gas horizontal pipe 910, effectively reduce the amount of water condensing into icicles, ensure smooth flue gas output, and improve safety.

[0098] In some embodiments of this application, the transfer pipe 930 is a corrugated pipe, and the smoke exhaust riser 920 and the smoke exhaust horizontal pipe 910 are set at an angle under the action of the transfer pipe 930. The transfer pipe 930 is detachably connected to the smoke exhaust riser 920 and the smoke exhaust horizontal pipe 910 respectively.

[0099] The bellows structure of the adapter pipe 930 is a cylindrical thin-walled corrugated shell with multiple transverse corrugations. The bellows can be bent into different angles according to the user's actual needs to adapt to the connection between the exhaust riser pipe 920 and the exhaust horizontal pipe 910, so as to guide the flue gas to the outside according to the target path.

[0100] In some embodiments of this application, the output end of the exhaust horizontal pipe 910 is further provided with a sealing member 940, and a diversion portion 941 extending into the inner cavity of the exhaust horizontal pipe 910 is formed on the sealing member 940. The diversion portion 941 gradually narrows along the direction away from the end of the exhaust horizontal pipe 910.

[0101] The sealing component 940 is used to seal the end of the horizontal exhaust pipe 910 to prevent external impurities from entering the horizontal exhaust pipe 910 and causing pipe blockage.

[0102] The diversion section 941 on the sealing component 940 guides the flue gas to the periphery and outputs it from the exhaust port 912, which can reduce the impact of the flue gas on the sealing component 940.

[0103] refer to Figure 8 The smoke exhaust chamber 600 has a cylindrical structure and its outer wall is arc-shaped.

[0104] The side of the connecting outer edge 732 that contacts the inner wall of the smoke exhaust chamber 600 has a conformal surface that matches the shape of the inner wall of the smoke exhaust chamber 600.

[0105] The conformal surface on the connecting outer edge 732 can better contact the inner wall of the smoke exhaust chamber 600, increasing the connection contact area. Multiple fastening holes 7321 are distributed on the connecting outer edge 732 to achieve connection and fixation with the smoke exhaust chamber 600.

[0106] In addition, in some other embodiments, the smoke exhaust chamber 600 may also have an installation port that matches the shape of the connecting groove 731, with the connector 730 extending from the outside of the smoke exhaust chamber 600 and the connecting groove 731 extending from the installation port into the smoke exhaust chamber 600.

[0107] The connecting outer edge 732 is fixedly connected to the outer wall of the smoke exhaust chamber 600, and the side of the connecting outer edge 732 that contacts the smoke exhaust chamber 600 has a conformal surface that is adapted to the outer wall of the smoke exhaust chamber 600.

[0108] In this embodiment, it should be noted that a sealing element is provided between the periphery of the mounting port and the outer edge 732 of the connection to improve the sealing strength between the smoke exhaust chamber 600 and the connector 730 and reduce smoke leakage.

[0109] refer to Figure 6 , Figure 7 as well as Figures 12-14 In some embodiments of this application, a valve body assembly 740 is provided at the bottom of the smoke exhaust chamber 600. The valve body assembly 740 includes a valve seat 741 fixed on the inner wall of the smoke exhaust chamber 600 and a valve body 742 connected to the valve seat 741. The valve body assembly 740 is used to control the unidirectional transport of flue gas from the condensation chamber 400 to the smoke exhaust chamber 600.

[0110] The outer circumference of the valve seat 741 is circular, which is adapted to the inner cavity of the smoke exhaust chamber 600 and fixed in the lower part of the inner cavity of the smoke exhaust chamber 600.

[0111] A valve port is formed on the valve seat 741, and the valve body 742 controls the opening and closing of the valve port.

[0112] Specifically, under the action of flue gas, the valve body 742 on the valve body assembly 740 can overcome its own gravity and open upwards, opening the valve port.

[0113] In some embodiments of this application, two positioning portions 7412 are formed on the valve seat 741 and arranged radially opposite to each other.

[0114] The positioning part 7412 is a support positioning structure that extends upward on the valve seat 741. The valve body 742 is connected to the positioning part 7412. The valve plate 7422 is flipped upward at a certain angle relative to the connecting shaft 7421. When the valve body 742 is in the open state, the valve plate 7422 is reset and contacts the lower limit part 7411. When the valve body 742 is in the closed state, the valve plate 7422 is in the closed state.

[0115] The positioning part 7412 is L-shaped and includes a positioning horizontal part and a positioning vertical part. The positioning horizontal part is formed on the valve seat 741 and extends towards the center, and the positioning vertical part is a bend formed inside the positioning horizontal part and extends upward.

[0116] A shaft hole 7413 is formed on the positioning upright for connecting with the valve body 742.

[0117] The valve body 742 includes a connecting shaft 7421 connected to the shaft hole 7413 and valve plates 7422 rotatably connected to both sides of the connecting shaft 7421. When the flue gas flows from bottom to top, the valve plates 7422 on both sides are flipped upward about the connecting shaft 7421 as the rotation axis, and the valve port on the valve seat 741 is opened.

[0118] The upper limit position 7414 is specifically a bend formed on the positioning part 7412 and extending toward the center of the valve body 742. The upper limit position 7414 has a small width. The valve plate 7422 rotates upward with the connecting shaft 7421 as the rotation center. The valve plate 7422 contacts the upper limit position 7414, thereby controlling the opening position of the valve plate 7422.

[0119] In some embodiments of this application, see 13 for details. Figure 14 The valve seat 741 has a lower limit portion 7411 and an upper limit portion 7414. The lower limit portion 7411 is used to limit the valve body 742 from opening downwards, and the upper limit portion 7414 is used to limit the valve body 742 from opening to the maximum position upwards.

[0120] There are two lower limit portions 7411, which are arranged radially opposite to each other at both ends of the valve seat 741. The lower limit portion 7411 is a protrusion extending toward the center of the valve seat 741, which is used to support and limit the valve body 742.

[0121] Of course, multiple lower limit portions 7411 can be arranged radially to improve the support effect on the valve body 742. Considering the obstruction of airflow, it is preferable to provide one lower limit portion 7411 in a direction perpendicular to the line connecting the upper limit portion 7414.

[0122] When the valve body 742 is in the open state, its maximum opening position is limited by the action of the upper limit part 7414. When the valve body 742 is in the closed state, its lower part contacts the lower limit part 7411, and the lower limit part 7411 supports and limits the valve body 742.

[0123] The valve body 742 on the valve body assembly 740 is in a closed state under its own gravity or in the state of flue gas backflow to prevent flue gas backflow; during the process of flue gas in the condensation chamber 400 being transported to the exhaust chamber 600, the valve body 742 on the valve body assembly 740 opens upward to open the valve port.

[0124] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0125] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. An atomizing nozzle, characterized in that, include: The atomizing body has an atomizing channel formed inside, and the top of the atomizing channel has an open structure; A water inlet is provided on the atomizing body, and a water inlet channel communicating with the atomizing channel is formed inside the water inlet. An air inlet is disposed on the atomizing body and located above the water inlet, and an air inlet channel is formed inside the air inlet that communicates with the atomizing channel.

2. The atomizing nozzle according to claim 1, characterized in that, The atomizing body has a water supply channel and an air supply channel that communicate with the atomizing channel. The water inlet is detachably connected to the water supply channel, and the air inlet is detachably connected to the air supply channel.

3. The atomizing nozzle according to claim 1, characterized in that, The water inlet and the air inlet are located on the side wall of the atomizing body.

4. The atomizing nozzle according to claim 1, characterized in that, The end of the atomizing body has a machined plane, and the spray nozzle of the atomizing channel is formed on the machined plane.

5. The atomizing nozzle according to claim 1, characterized in that, The outer wall of the atomizing body is a cylindrical structure, and an installation surface parallel to its axis is formed on the outer wall of the atomizing body. The ends of the air inlet and the water inlet are in contact with the installation surface.

6. A condensing gas water heater, characterized in that, Includes the atomizing nozzle as described in any one of claims 1-5 above.

7. The condensing gas water heater according to claim 6, characterized in that, Also includes: The outer casing has an internal mounting cavity formed therein; A combustion chamber is disposed within the mounting cavity, and a gas pipeline is connected externally to the combustion chamber. A heat exchange chamber is located above the combustion chamber and communicates with the combustion chamber; A condensation chamber is located beside the heat exchange chamber and communicates with the heat exchange chamber; An air pump is disposed within the mounting cavity; The condenser chamber is provided with a water collection box below it to collect the condensate formed in the condenser chamber; the atomizing nozzle is provided above the condenser chamber and is connected to the water collection box via a water pipe and to the air pump via an air pipe.

8. The condensing gas water heater according to claim 7, characterized in that, A smoke exhaust chamber is provided above the condensation chamber, and a smoke exhaust pipe assembly is connected to the smoke exhaust chamber. The other end of the smoke exhaust pipe assembly extends to the outside. The atomizing nozzle is fixed in the smoke exhaust chamber or the smoke exhaust pipe assembly.

9. The condensing gas water heater according to claim 8, characterized in that, The atomizing nozzle is fixed in the smoke exhaust chamber by a connector. The connector includes a connecting groove extending toward the atomizing nozzle and a connecting outer edge located around the connecting groove. A plurality of fastening holes are formed on the connecting outer edge. The fastening holes are detachably connected to the inner wall of the smoke exhaust chamber by fasteners.

10. The condensing gas water heater according to claim 9, characterized in that, The connecting groove has connecting holes adapted to the positions of the water inlet and the air inlet. An intermediate connector is provided on each connecting hole. The intermediate connector is used to connect the water inlet to the water pipe and the air inlet to the air pipe, respectively. Each of the intermediate connecting parts includes a limiting part and a first connecting end and a second connecting end formed on both sides of the limiting part. The first connecting end is connected to the water inlet end or the air inlet end, and the second connecting end is used to connect to the water inlet pipe or the air inlet pipe. The connecting groove is located between the limiting part and the atomizing nozzle.

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