Condensation atomization device and gas water heating equipment

Abstract

The utility model discloses a condensation and atomization device and gas water heating equipment, and relates to the technical field of water heating equipment, the condensation and atomization device comprises a shell, the shell is provided with a smoke inlet, a smoke outlet, a water inlet connector and a water outlet connector, the shell is provided with a smoke channel and an atomization cavity, and the smoke channel is provided with a smoke inlet channel and a first sub-channel; the smoke inlet, the smoke inlet channel, the first sub-channel and the smoke outlet are communicated in the smoke flowing direction, the atomization cavity is located on the downstream of the first sub-channel and communicated with the smoke outlet, and the smoke inlet channel is higher than the first sub-channel; at least part of the condensing heat exchanger is arranged in the first sub-channel, and the two ends of the condensing heat exchanger communicate with the water inlet connector and the water outlet connector correspondingly; the atomizer is arranged on the shell, and the atomization cavity is used for collecting condensate water generated by the condensation heat exchanger and atomizing the condensate water through the atomizer. According to the technical scheme, the smoke inlet resistance can be reduced, the heat exchange efficiency of smoke and the condensation heat exchanger is improved, and condensate water can be discharged without being externally connected with a drain pipe.

Description

Technical Field

[0001] This utility model relates to the field of hot water equipment technology, and in particular to a condensation atomization device and a gas-fired hot water equipment. Background Technology

[0002] Against the backdrop of energy conservation and emission reduction, improving the energy efficiency of gas-fired water heaters has become an industry trend. For example, some condensing gas water heaters are typically equipped with condensing heat exchangers, which exchange heat with flue gas to fully utilize the latent heat of gasification and achieve high energy efficiency. Traditionally, condensing heat exchangers are located inside the flue of the casing. However, due to unreasonable flue structure design, the inlet resistance is high, and the flue gas cannot be concentrated in the flue section where the condensing heat exchanger is located, affecting the heat exchange efficiency between the flue gas and the condensing heat exchanger. Furthermore, the condensing heat exchanger produces a large amount of condensate during the heat exchange process, usually requiring an external long drain pipe to discharge the condensate into the sewer or water tank, making the installation of the water heater inconvenient. Utility Model Content

[0003] The main purpose of this invention is to provide a condensation atomization device that can reduce the resistance of flue gas inlet, improve the heat exchange efficiency between flue gas and condenser heat exchanger, and achieve condensate discharge without the need for an external drain pipe.

[0004] To achieve the above objectives, the condensation atomization device proposed in this utility model includes:

[0005] The housing has a smoke inlet, a smoke outlet, a water inlet, and a water outlet. The housing has an internal smoke channel and an atomizing chamber. The smoke channel has at least a smoke inlet channel and a first sub-channel. The smoke inlet, the smoke inlet channel, the first sub-channel, and the smoke outlet are connected along the smoke flow direction. The atomizing chamber is located downstream of the first sub-channel and connected to the smoke outlet in the smoke flow direction. The height of the smoke inlet channel is greater than the height of the first sub-channel.

[0006] A condensing heat exchanger, at least partially disposed within the first sub-channel, connects the inlet water interface to the outlet water interface; and

[0007] An atomizer is disposed in the housing. The atomizing chamber is used to collect condensate water generated by the condenser heat exchanger. The atomizer is used to atomize the condensate water in the atomizing chamber.

[0008] In one embodiment, the flue gas passage further includes a second sub-passage. The smoke inlet passage, the first sub-passage, and the second sub-passage are arranged and connected in a horizontal direction. The smoke inlet is located at the bottom of the smoke inlet passage, the smoke outlet is located at the top of the second sub-passage, and the atomizing chamber is located below the second sub-passage. The atomizing chamber, the second sub-passage, and the smoke outlet are arranged and connected in a vertical direction.

[0009] In one embodiment, the housing has a guide surface facing the smoke inlet, the guide surface being inclined downward toward the side closer to the first sub-channel;

[0010] And / or, the height of the second sub-channel is greater than the height of the first sub-channel;

[0011] And / or, the first sub-channel extends from the smoke inlet channel toward the second sub-channel and slopes downward.

[0012] In one embodiment, the condenser heat exchanger includes a heat exchange tube, the heat exchange tube having a main heat exchange tube section and connecting tube sections respectively disposed at both ends of the main heat exchange tube section, the main heat exchange tube section being disposed within the first sub-channel.

[0013] In one embodiment, the flue gas passage further includes a second sub-passage, the second sub-passage being connected to the end of the first sub-passage away from the flue gas inlet passage;

[0014] The main heat exchange pipe section is constructed into a meandering serpentine pipe structure, and the two connecting pipe sections are located in the second sub-channel, wherein one of the connecting pipe sections is connected to the water inlet and the other connecting pipe section is connected to the water outlet.

[0015] And / or, the housing further includes an inlet connector and an outlet connector, the two ends of the inlet connector are respectively provided with an inlet connection part and the inlet interface, the two ends of the outlet connector are respectively provided with an outlet connection part and the outlet interface, the inlet connection part and the outlet connection part are placed in the second sub-channel, the condenser heat exchanger includes a heat exchange tube, the inlet end of the heat exchange tube is detachably connected to the inlet connection part, and the outlet end of the heat exchange tube is detachably connected to the outlet connection part.

[0016] In one embodiment, the condenser heat exchanger includes a heat exchange tube, which is configured as a bent pipe structure formed by integrally winding a single tube.

[0017] And / or, at least a portion of the heat exchange tube is made of corrugated pipe.

[0018] In one embodiment, the housing further includes a water storage cavity located below the first sub-channel, and the atomizing cavity located on the side of the water storage cavity away from the smoke inlet. The top of the water storage cavity is provided with a first communication port communicating with the first sub-channel, and the side of the water storage cavity is provided with a second communication port communicating with the atomizing cavity.

[0019] In one embodiment, a baffle is provided inside the housing, and the first sub-channel and the water storage cavity are respectively located on both sides of the baffle;

[0020] And / or, the housing also has a settling chamber, a third connecting port and a drain port, the second connecting port being connected to the settling chamber, the settling chamber being connected to the atomizing chamber through the third connecting port, the settling chamber being used to settling impurities in the condensate transported by the water storage chamber and then outputting it to the atomizing chamber, and the drain port being connected to the third connecting port.

[0021] In one embodiment, the baffle is provided with an upwardly protruding first rib, the bottom side of the condensing heat exchanger abuts against the first rib, and / or, the top wall of the first sub-channel is provided with a downwardly protruding second rib, the top side of the condensing heat exchanger abuts against the second rib.

[0022] In one embodiment, the condensation atomization device further includes a liquid level detection module, which is used to detect the liquid level in the atomization chamber. The atomizer is used to turn on or off according to the signal fed back by the liquid level detection module. The liquid level detection module includes a float and a Hall sensor. The float is provided with a magnetic component. The bottom wall of the atomization chamber is provided with an upwardly extending fixed post. The top of the fixed post is provided with a limiting component. The float is movably fitted onto the fixed post. The Hall sensor is located at the end of the fixed post away from the limiting component.

[0023] In one embodiment, the housing includes a first sub-housing and a second sub-housing, the first sub-housing being located above the second sub-housing, the first sub-housing having a downward-facing open end, and the second sub-housing having an upward-facing open end, the open ends of the first sub-housing and the open ends of the second sub-housing being mated and sealed together.

[0024] This utility model also proposes a gas-fired hot water device, including the condensation atomization device as described above.

[0025] The technical solution of this utility model is achieved by providing a flue gas inlet, a flue gas outlet, a water inlet, and a water outlet in the shell of the condensing atomizing device, and constructing a flue gas channel and an atomizing chamber inside the shell. The flue gas channel has at least a flue gas inlet channel and a first sub-channel, with at least a portion of the condensing heat exchanger located within the first sub-channel. The water inlet end of the condensing heat exchanger is connected to the water inlet, and the water outlet end is connected to the water outlet. Thus, flue gas enters the flue gas inlet channel through the flue gas inlet and then flows to the first sub-channel, where it can exchange heat with the condensing heat exchanger. External cold water can enter the condensing heat exchanger through the water inlet, be heated, and then output through the water outlet. Because the height of the flue gas inlet channel is greater than the height of the first sub-channel, the flue gas inlet channel has sufficient height space, thereby reducing the resistance of the flue gas entering the flue gas inlet channel from the flue gas inlet, allowing the flue gas generated by the main body of the gas-fired hot water equipment to enter the flue gas inlet channel more smoothly. The relatively small height of the first sub-channel allows the flue gas to concentrate more effectively within it, enabling greater contact and heat exchange with the condenser heat exchanger and improving the heat exchange efficiency. Furthermore, the atomizing chamber is located downstream of the first sub-channel and connected to the exhaust port in the flue gas flow direction. After heat exchange, condensate forms on the surface of the condenser heat exchanger, which flows into the atomizing chamber. The atomizer then atomizes the condensate, allowing it to flow along with the flue gas from the first sub-channel to the exhaust port for discharge. This eliminates the need for an external drain pipe. Attached Figure Description

[0026] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of an embodiment of the gas-fired water heater provided by this utility model;

[0028] Figure 2 for Figure 1 Cross-sectional schematic diagram of a gas-fired hot water equipment;

[0029] Figure 3 A schematic diagram of an embodiment of the condensation atomizing device provided by this utility model;

[0030] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the intermediate condenser atomizing device;

[0031] Figure 5 for Figure 3 A bottom view of the central condenser atomizing device;

[0032] Figure 6 for Figure 5 A cross-sectional view along line AA;

[0033] Figure 7 for Figure 5 A cross-sectional view along line BB;

[0034] Figure 8 for Figure 5 A cross-sectional view along line CC;

[0035] Figure 9 for Figure 3 Cross-sectional schematic diagram of the middle shell;

[0036] Figure 10 for Figure 4 A schematic diagram of the structure of the second subshell;

[0037] Figure 11 for Figure 4 A schematic diagram of the structure of a medium-condenser heat exchanger.

[0038] Explanation of icon numbers:

[0039] 100. Condensation atomization device; 10. Shell; 101. Smoke inlet; 102. Smoke outlet; 103. Water inlet; 104. Water outlet; 105. Flue gas passage; 1051. Smoke inlet passage; 1052. Heat exchange passage; 1052a. First sub-channel; 1052b. Second sub-channel; 106. Atomization chamber; 107. Water storage chamber; 1071. First connecting port; 1072. Second connecting port; 108. Settling chamber; 109. Third connecting port; 1091. First half-port; 1092. Second half-port; 110. Sewage outlet; 111. First sub-shell; 1111. Second rib; 1112. Guide surface; 112. Second sub-shell; 1121, Guide tube; 1122, Divider; 1123, Fixing column; 113, Water inlet connector; 1131, Water inlet connection; 114, Water outlet connector; 1141, Water outlet connection; 115, Exhaust pipe; 20, Condensing heat exchanger; 21, Heat exchange tube; 211, Main heat exchange tube section; 212, Connecting tube section; 22, First connector; 23, Second connector; 30, Atomizer; 40, Sealing element; 50, Baffle; 51, First plate; 511, First rib; 52, Second plate; 521, Perforation; 60, Liquid level detection module; 61, Float; 62, Hall sensor; 70, Limiting element; 80, Antifreeze check valve; 90, Connecting frame;

[0040] 200. Main body of gas-fired hot water equipment; 210. Fan; 220. Burner; 230. Main heat exchanger; 240. Smoke hood; 241. Smoke outlet pipe; 250. Combustion chamber housing; 300. Piping system; 310. Water inlet pipe; 320. Water outlet pipe; 330. Water supply pipe; 340. Sewage pipe; 400. Casing.

[0041] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0043] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0045] Against the backdrop of energy conservation and emission reduction, improving the energy efficiency of gas-fired water heaters has become an industry trend. For example, some condensing gas water heaters are typically equipped with condensing heat exchangers, which exchange heat with flue gas to fully utilize the latent heat of gasification and achieve high energy efficiency. Traditionally, condensing heat exchangers are located inside the flue of the casing. However, due to unreasonable flue structure design, the inlet resistance is high, and the flue gas cannot be concentrated in the flue section where the condensing heat exchanger is located, affecting the heat exchange efficiency between the flue gas and the condensing heat exchanger. Furthermore, the condensing heat exchanger produces a large amount of condensate during the heat exchange process, usually requiring an external long drain pipe to discharge the condensate into the sewer or water tank, making the installation of the water heater inconvenient.

[0046] This invention proposes a condensation atomization device 100, which can reduce the resistance of flue gas inlet, improve the heat exchange efficiency between flue gas and condensation heat exchanger 20, and achieve the discharge of condensate without the need for an external drain pipe.

[0047] like Figure 1 and Figure 2 As shown, the condensing atomizing device 100 can be used in gas-fired water heating equipment, including but not limited to gas water heaters and gas-fired wall-mounted boilers. Taking a gas water heater as an example, the gas water heater includes the condensing atomizing device 100 and the main body 200 of the gas water heating equipment. The main body 200 includes components such as a fan 210, a burner 220, and a main heat exchanger 230. The condensing heat exchanger 20 is located on the flue gas outlet side of the main heat exchanger 230, and the water outlet of the condensing heat exchanger 20 is connected to the water inlet of the main heat exchanger 230. When the gas water heater is working, the fan 210 drives the high-temperature flue gas generated by the combustion of the burner 220 to flow towards the main heat exchanger 230. The flue gas undergoes a first heat exchange with the main heat exchanger 230 and then a second heat exchange with the condensing heat exchanger 20, so that the latent heat of the flue gas is fully utilized. During this process, external cold water can first enter the condensing heat exchanger 20 for preheating before being transported to the main heat exchanger 230 for further heating, thereby improving the hot water output efficiency. The following mainly describes the specific implementation of the condensation atomization device 100.

[0048] Please see Figures 3 to 7In one embodiment of this utility model, the condenser atomizing device 100 includes a housing 10, a condenser heat exchanger 20, and an atomizer 30. The housing 10 has a flue gas inlet 101, a flue gas outlet 102, a water inlet 103, and a water outlet 104. The housing 10 internally forms a flue gas passage 105 and an atomizing chamber 106. The flue gas passage 105 has at least a flue gas inlet passage 1051 and a first sub-channel 1052a. The flue gas inlet 101, the flue gas inlet passage 1051, the first sub-channel 1052a, and the flue gas outlet 102 are connected along the flue gas flow direction. The atomizing chamber 106 is located in the flue gas flow direction within the first sub-channel 1052a. Downstream of a and connected to the exhaust port 102, the height of the smoke inlet channel 1051 is greater than the height of the first sub-channel 1052a; the condenser heat exchanger 20 is at least partially disposed in the first sub-channel 1052a, and the condenser heat exchanger 20 connects the water inlet port 103 and the water outlet port 104; the atomizer 30 is disposed in the housing 10, the atomizing chamber 106 is used to collect the condensate water generated by the condenser heat exchanger 20, and the atomizer 30 is used to atomize the condensate water in the atomizing chamber 106.

[0049] In this embodiment, the housing 10 is used to construct the overall appearance structure of the condenser atomizing device 100 and to serve as the mounting carrier for the condenser heat exchanger 20 and the atomizer 30. Optionally, the housing 10 includes a first sub-housing 111 and a second sub-housing 112 that are spliced ​​together. During manufacturing, the first sub-housing 111 and the second sub-housing 112 can be formed separately and then assembled. This facilitates the construction of a relatively complex flue gas channel 105 and atomizing chamber 106 within the housing 10. The first sub-housing 111 and the second sub-housing 112 can be spliced ​​together in the vertical direction, or in the horizontal or front-back direction; no specific limitation is made here. The condensing heat exchanger 20 is at least partially located within the first sub-channel 1052a. Flue gas enters the flue gas inlet channel 1051 through the flue gas inlet 101 and then flows to the first sub-channel 1052a, where it can exchange heat with the condensing heat exchanger 20. The water inlet of the condensing heat exchanger 20 is connected to the water inlet interface 103, and the water outlet of the condensing heat exchanger 20 is connected to the water outlet interface 104. External cold water can enter the condensing heat exchanger 20 through the water inlet interface 103, be heated, and then be output through the water outlet interface 104. When applied to a gas-fired water heater, the flue gas inlet 101 can be connected to the main body 200 of the gas-fired water heater to introduce the flue gas generated by the main body 200; the water inlet interface 103 can be used to connect to the water inlet pipe 310 to supply cold water to the condensing heat exchanger 20; and the water outlet interface 104 can be used to connect to the water inlet of the main heat exchanger 230 to supply preheated water to the main heat exchanger 230. The condensing heat exchanger 20 includes, but is not limited to, tubular heat exchangers, plate heat exchangers, etc. Optionally, the condensing heat exchanger 20 uses a tubular heat exchanger, which has a simple structure and occupies less space. The heat exchange tubes 21 of the tubular heat exchanger include, but are not limited to, smooth tubes, corrugated tubes, finned tubes, etc.

[0050] During the heat exchange process, condensate will form on the surface of the condenser heat exchanger 20. This condensate can flow into the atomization chamber 106, where it is atomized by the atomizer 30. The atomized condensate then enters the flue gas passage 105 and is discharged from the exhaust port 102 along with the flue gas, thus achieving condensate discharge. The atomizer 30 can atomize the condensate in various ways, including but not limited to ultrasonic atomization, jet atomization, and vibrating screen atomization. Optionally, an ultrasonic atomizer 30 can be used, which offers high atomization efficiency, simple structure, and small footprint. For example, the atomizer 30 can be fixed to the bottom wall of the housing 10 (such as the second sub-housing 112). The bottom wall of the housing 10 has a through hole communicating with the atomization chamber 106. The atomizing end of the atomizer 30 is placed inside the atomization chamber 106 through the through hole, allowing direct contact with the condensate inside the atomization chamber 106 for atomization.

[0051] The technical solution of this utility model involves providing a flue gas inlet 101, a flue gas outlet 102, a water inlet 103, and a water outlet 104 in the housing 10 of the condensation atomization device 100, and constructing a flue gas channel 105 and an atomization chamber 106 inside the housing 10. The flue gas channel 105 has at least a flue gas inlet channel 1051 and a first sub-channel 1052a, with the condensation heat exchanger 20 at least partially disposed within the first sub-channel 1052a. The water inlet of the condensation heat exchanger 20 is connected to the water inlet 103, and the water outlet of the condensation heat exchanger 20 is connected to the water outlet 104. Thus, flue gas enters the flue gas channel 105 through the flue gas inlet 101. The flue gas flows from channel 1051 to the first sub-channel 1052a, where it exchanges heat with the condenser heat exchanger 20. External cold water enters the condenser heat exchanger 20 through the inlet port 103, is heated, and then output through the outlet port 104. Because the height of the flue gas inlet channel 1051 is greater than that of the first sub-channel 1052a, the flue gas inlet channel 1051 has sufficient height space, thereby reducing the resistance of the flue gas entering the flue gas inlet channel 1051 from the inlet port 101, allowing the flue gas generated by the gas-fired water heater body 200 to enter the flue gas inlet channel 1051 more smoothly. The relatively smaller height of the first sub-channel 1052a makes the flue gas more concentrated, allowing for sufficient contact and heat exchange with the condenser heat exchanger 20 in the first sub-channel 1052a, thus improving the heat exchange efficiency between the flue gas and the condenser heat exchanger 20. Furthermore, the atomizing chamber 106 is located downstream of the first sub-channel 1052a in the flue gas flow direction and is connected to the exhaust port 102. After heat exchange, condensate water is generated on the surface of the condensing heat exchanger 20. The condensate water can flow into the atomizing chamber 106, and the atomizer 30 atomizes the condensate water in the atomizing chamber 106. The atomized condensate water can flow together with the flue gas transported from the first sub-channel 1052a to the exhaust port 102 for discharge. In this way, the condensate water can be discharged without the need for an external drain pipe, which can improve the installation convenience of the water heater. Moreover, the absence of an external drain pipe can improve the overall appearance integrity of the unit, making the overall appearance quality better and the unit more aesthetically pleasing.

[0052] In one embodiment, the flue gas passage 105 further includes a second sub-passage 1052b. The smoke inlet passage 1051, the first sub-passage 1052a, and the second sub-passage 1052b are arranged and connected in a horizontal direction. The smoke inlet 101 is located at the bottom of the smoke inlet passage 1051, the smoke outlet 102 is located at the top of the second sub-passage 1052b, and the atomizing chamber 106 is located below the second sub-passage 1052b. The atomizing chamber 106, the second sub-passage 1052b, and the smoke outlet 102 are arranged and connected in a vertical direction.

[0053] In this embodiment, the first sub-channel 1052a and the second sub-channel 1052b are connected to form a heat exchange channel 1052. The condensing heat exchanger 20 can be partially placed in the first sub-channel 1052a and partially in the second sub-channel 1052b, or the entire condensing heat exchanger 20 can be placed in the first sub-channel 1052a. After the flue gas flows upward through the flue gas inlet 101 into the flue gas inlet channel 1051, it changes direction and flows laterally from the first sub-channel 1052a to the second sub-channel 1052b, where it exchanges heat with the condensing heat exchanger 20. Then, it changes direction again and flows upward to the flue gas outlet 102. This allows the flue gas to undergo multiple direction changes within the casing 10, which helps to extend the flow distance and residence time of the flue gas within the casing 10, allowing the flue gas to fully exchange heat with the condensing heat exchanger 20 before being discharged, thereby further improving heat exchange efficiency. The condensate in the atomizing chamber 106, after being atomized by the atomizer 30, can flow directly upwards with the flue gas through the second sub-channel 1052b to the exhaust port 102 for discharge. This shortens the flow path of the atomized condensate and reduces its flow resistance, allowing it to be quickly discharged with the flue gas. This prevents the atomized condensate from liquefying again due to an excessively long flow path or high resistance, thus improving the discharge efficiency. When this condensation atomization device 100 is applied to a gas-fired water heater, it can be positioned on top of the main body 200 of the gas-fired water heater. The horizontal direction can be the width of the main body 200 (e.g., left-right direction), and the vertical direction can be the height of the main body 200 (e.g., up-down direction).

[0054] like Figure 6 As shown, in one embodiment, the housing 10 has a guide surface 1112 facing the flue gas inlet 101, and the guide surface 1112 is inclined downward toward the side near the first sub-channel 1052a. Thus, the guide surface 1112 allows the flue gas in the flue gas inlet channel 1051 to flow more smoothly into the first sub-channel 1052a for contact heat exchange with the condenser heat exchanger 20, avoiding the formation of a stepped structure between the flue gas inlet channel 1051 and the first sub-heat exchange channel 1052, which would obstruct the flue gas flow. Furthermore, the downward inclination of the guide surface 1112 also facilitates the flow of flue gas into the lower pipes of the condenser heat exchanger 20, ensuring that both the upper and lower pipes of the condenser can fully contact the flue gas for heat exchange, resulting in more uniform heat exchange in all parts of the condenser heat exchanger 20 along its height.

[0055] like Figure 6As shown, in one embodiment, the height of the second sub-channel 1052b is greater than the height of the first sub-channel 1052a. In this embodiment, the height of the smoke inlet channel 1051 and the height of the second sub-channel 1052b are both greater than the height of the first sub-channel 1052a, making the flue gas channel 105 present a dumbbell-shaped flue structure with a lower middle and higher ends. This not only reduces the smoke inlet resistance and improves the heat exchange efficiency, but also, since the atomizing chamber 106 is located below the second sub-channel 1052b, and the second sub-channel 1052b has a relatively high height, there is a larger atomizing space above the atomizing chamber 106, which is more conducive to improving the atomization effect and preventing the condensate after atomization from touching the inner wall of the shell 10 and liquefying again in the narrow space.

[0056] like Figure 6 As shown, in one embodiment, the first sub-channel 1052a extends from the smoke inlet channel 1051 toward the second sub-channel 1052b and slopes downward. In this embodiment, the first sub-channel 1052a is inclined, with its upward end connected to the smoke inlet channel 1051 and its downward end connected to the second sub-channel 1052b. This design facilitates, on the one hand, the downward flow of the flue gas entering the first sub-channel 1052a from the smoke inlet channel 1051, allowing for sufficient heat exchange with the lower pipes of the condenser heat exchanger 20; on the other hand, it also facilitates the downward flow of condensate water generated by the condenser heat exchanger 20 after dripping onto the bottom wall of the first sub-channel 1052a, allowing it to flow down the slope into the atomizing chamber 106.

[0057] like Figure 7 and Figure 11 As shown, in one embodiment, the condenser heat exchanger 20 includes a heat exchange tube 21, the heat exchange tube 21 having a main heat exchange tube section 211 and connecting tube sections 212 respectively disposed at both ends of the main heat exchange tube section 211, the main heat exchange tube section 211 being disposed within the first sub-channel 1052a.

[0058] In this embodiment, external cold water enters one of the connecting pipe sections 212 through the inlet port 103, is then transported to the main heat exchange pipe section 211, and then output through the outlet port 104 via another connecting pipe section 212. The main heat exchange pipe section 211, located within the first sub-channel 1052a, allows for earlier contact and heat exchange with the flue gas. Furthermore, the relatively small height of the first sub-channel 1052a concentrates the flue gas within it, enabling sufficient contact and heat exchange with the main heat exchange pipe section 211, thereby improving the heat exchange efficiency between the flue gas and the condenser heat exchanger 20.

[0059] Furthermore, in one embodiment, the flue gas passage 105 further includes a second sub-passage 1052b, which is connected to the end of the first sub-passage 1052a away from the flue gas inlet passage 1051; the main heat exchange pipe section 211 is configured as a meandering serpentine pipe structure, and two connecting pipe sections 212 are disposed in the second sub-passage 1052b, wherein one connecting pipe section 212 is connected to the water inlet interface 103, and the other connecting pipe section 212 is connected to the water outlet interface 104.

[0060] In this embodiment, the flue gas first enters the first sub-channel 1052a to exchange heat with the main heat exchange tube section 211, and then enters the second sub-channel 1052b to exchange heat with the connecting tube section 212. The main heat exchange tube section 211 has a meandering, serpentine pipe structure, which can extend the length of the main heat exchange tube section 211 as much as possible within a limited space, thereby increasing the contact area with the flue gas and improving the heat exchange efficiency. Optionally, the main heat exchange tube section 211 is constructed with at least two heat exchange layers arranged vertically. Each heat exchange layer includes multiple sub-heat exchange tubes arranged at intervals along the extension direction of the first sub-channel 1052a, and the sub-heat exchange tubes of adjacent heat exchange layers are staggered. This helps to further increase the contact area between the main heat exchange tube section 211 and the flue gas, improve the heat exchange efficiency, and ensures that the sub-heat exchange tubes of adjacent heat exchange layers do not block each other, which is conducive to the smooth dripping of condensate from the surface of the upper sub-heat exchange tubes.

[0061] like Figure 7 and Figure 11 As shown, in one embodiment, the flue gas passage 105 further includes a second sub-passage 1052b, which is connected to the end of the first sub-passage 1052a away from the flue gas inlet passage 1051; the housing 10 further includes a water inlet connector 113 and a water outlet connector 114, the two ends of the water inlet connector 113 are respectively provided with a water inlet connection portion 1131 and the water inlet interface 103, the two ends of the water outlet connector 114 are respectively provided with a water outlet connection portion 1141 and the water outlet interface 104, the water inlet connection portion 1131 and the water outlet connection portion 1141 are placed in the second sub-passage 1052b, and the condenser heat exchanger 20 includes a heat exchange tube 21, the water inlet end of the heat exchange tube 21 is detachably connected to the water inlet connection portion 1131, and the water outlet end of the heat exchange tube 21 is detachably connected to the water outlet connection portion 1141.

[0062] In this embodiment, the water inlet end of the heat exchange tube 21 is detachably connected to the water inlet connection 1131, and the water outlet end of the heat exchange tube 21 is detachably connected to the water outlet connection 1141. The detachable connection methods include, but are not limited to, threaded connection, screw connection, snap-fit ​​connection, or connection through other quick-release structures. This facilitates the removal of the condenser heat exchanger 20 from the housing 10.

[0063] Optionally, the condensing heat exchanger 20 further includes a first connector 22 and a second connector 23 respectively disposed at both ends of the heat exchange tube 21. The first connector 22 is threadedly connected to the water inlet connection 1131, and the second connector 23 is threadedly connected to the water outlet connection 1141. In this embodiment, the first connector 22 is sleeved on the outer periphery of the water inlet connection 1131 and threadedly connected to the water inlet connection 1131, and the second connector 23 is sleeved on the outer periphery of the water outlet connection 1141 and threadedly connected to the water outlet connection 1141. This simplifies the installation structure of the condensing heat exchanger 20 and the shell 10, and facilitates the installation and disassembly of the condensing heat exchanger 20.

[0064] like Figure 7 As shown, in one embodiment, the condensing heat exchanger 20 includes a heat exchange tube 21, which is configured as a single tube integrally wound to form a bent pipe structure. In this embodiment, the condensing heat exchanger 20 adopts a tubular heat exchanger formed by a single tube, which has a simple structure, occupies little space, and is easy to manufacture. The bent pipe structure of the heat exchange tube 21 can extend the length of the heat exchange tube 21 as much as possible within a limited space, increase the contact area with the flue gas, and improve the heat exchange efficiency.

[0065] In one embodiment, at least a portion of the heat exchange tube 21 is made of corrugated pipe. This increases the contact area between the heat exchange tube 21 and the flue gas by utilizing the pleats of the corrugated pipe, thereby improving heat exchange efficiency. Furthermore, compared to finned tubes, corrugated pipes have a simpler structure and lower cost, while also preventing condensate from accumulating between adjacent fins and failing to drip properly. Optionally, the entire heat exchange tube 21 is made of corrugated pipe.

[0066] like Figure 9 and Figure 10 As shown, in one embodiment, the housing 10 further includes a water storage cavity 107, which is located below the first sub-channel 1052a. The atomizing cavity 106 is located on the side of the water storage cavity 107 away from the smoke inlet 101. The top of the water storage cavity 107 is provided with a first communication port 1071 communicating with the first sub-channel 1052a, and the side of the water storage cavity 107 is provided with a second communication port 1072 communicating with the atomizing cavity 106.

[0067] In this embodiment, the condensate dripping from the surface of the condenser heat exchanger 20 can first flow from the first connecting port 1071 into the water storage chamber 107, and then from the second connecting port 1072 into the atomizing chamber 106. By setting the water storage chamber 107, the storage capacity of the housing 10 for condensate can be improved. When there are abnormal operating conditions or long-term use, if the atomizer 30 cannot process the generated condensate in time, the excess condensate can be stored in the water storage chamber 107 and atomized again when waiting for the machine to stop to discharge the stored condensate. In this way, when applied to gas water heaters, it can prevent the excessive condensate in the atomizing chamber 106 from flowing back into the gas water heater body 200 along the flue gas passage 105 when the atomizer 30 has insufficient atomization capacity or malfunctions, thus avoiding damage to the gas water heater body 200.

[0068] like Figure 9 As shown, in one embodiment, the housing 10 is provided with a baffle 50, and the first sub-channel 1052a and the water storage cavity 107 are respectively provided on both sides of the baffle 50.

[0069] In this embodiment, the first sub-channel 1052a and the water storage chamber 107 are separated by a baffle 50, and the first connecting port 1071 can be provided on the baffle 50. The condensate generated on the surface of the condensing heat exchanger 20 drips onto the baffle 50 under the action of gravity, and then flows into the water storage chamber 107 from the first connecting port 1071 of the baffle 50, and is then transported from the water storage chamber 107 to the atomizing chamber 106 for atomization.

[0070] like Figure 9 As shown, in one embodiment, the baffle 50 is provided with an upwardly protruding first rib 511, the bottom side of the condensing heat exchanger 20 abuts against the first rib 511, and / or, the top wall of the first sub-channel 1052a is provided with a downwardly protruding second rib 1111, the top side of the condensing heat exchanger 20 abuts against the second rib 1111.

[0071] In this embodiment, the baffle 50 is provided with an upwardly protruding first rib 511. The first rib 511 supports the bottom side of the condenser heat exchanger 20, so that a certain gap is formed between the condenser heat exchanger 20 and other parts of the baffle 50. This allows the flue gas to fully contact and exchange heat with the bottom side of the condenser heat exchanger 20, and also facilitates the dripping of condensate from the bottom side of the condenser heat exchanger 20 from the gap area and flow along the baffle 50 into the water storage chamber 107. In addition, the first rib 511 also acts as a reinforcing rib, which strengthens the structural strength of the baffle 50 and prevents the baffle 50 from deforming. And / or, the top wall of the first sub-channel 1052a is provided with a downwardly protruding second rib 1111. The second rib 1111 abuts against the top side of the condenser heat exchanger 20, creating a certain gap between the condenser heat exchanger 20 and other parts of the shell 10. This allows the flue gas to fully contact and exchange heat with the top side of the condenser heat exchanger 20, and also facilitates the dripping of condensate from the top side of the condenser heat exchanger 20 from the gap area. Furthermore, the second rib 1111 also acts as a reinforcing rib, strengthening the structural strength of the shell 10 and preventing deformation. Optionally, the first rib 511 extends along the length of the baffle 50 and is provided in multiple intervals along the width of the baffle 50. Optionally, the second rib 1111 extends along the length of the shell 10 and is provided in multiple intervals along the width of the shell 10.

[0072] like Figure 4 and Figure 9 As shown, in one embodiment, the baffle 50 includes a first plate 51 located between the first sub-channel 1052a and the water storage chamber 107. The first plate 51 is inclined downward toward the side near the atomizing chamber 106, and the first connecting port 1071 is located on the first plate 51 near the atomizing chamber 106. In this embodiment, by setting the first plate 51 to be inclined downward toward the atomizing chamber 106, the condensate dripping from the condenser heat exchanger 20 can flow downward along the slope of the first plate 51 to the first connecting port 1071 after reaching the baffle 50, and then enter the water storage chamber 107 from the first connecting port 1071. This improves the condensate collection efficiency.

[0073] like Figure 4 and Figure 9As shown, in one embodiment, the baffle 50 further includes a second plate 52, which is disposed on the side of the first plate 51 near the smoke inlet channel 1051. The smoke inlet 101 is disposed on the bottom wall of the housing 10. The housing 10 has a guide cylinder 1121 extending upward from the periphery of the smoke inlet 101. The second plate 52 has a through hole 521 through which the guide cylinder 1121 passes. In this embodiment, the guide cylinder 1121 is inserted and fitted into the baffle 50 through the through hole 521, which enables the baffle 50 to be quickly positioned and installed, and improves the installation stability of the baffle 50. Optionally, the baffle 50 and the housing 10 are locked and fixed by fasteners. Optionally, the guide cylinder 1121 and the second sub-housing 112 are integrally formed.

[0074] like Figure 8 and Figure 10 As shown, in one embodiment, the housing 10 further includes a settling chamber 108, a third connecting port 109, and a drain port 110. The second connecting port 1072 is connected to the settling chamber 108, and the settling chamber 108 is connected to the atomizing chamber 106 through the third connecting port 109. The settling chamber 108 is used to settling impurities in the condensate transported by the water storage chamber 107 and then output it to the atomizing chamber 106. The drain port 110 is connected to the third connecting port 109.

[0075] In this embodiment, the condensate on the surface of the condenser heat exchanger 20 drips into the water storage chamber 107 under the action of gravity. The condensate in the water storage chamber 107 can enter the settling chamber 108 through the second connecting port 1072. The settling chamber 108 can filter the condensate by settling, so that the dense particulate impurities in the condensate settle into the settling chamber 108. After settling and filtration, the condensate enters the atomizing chamber 106 through the third connecting port 109 for atomization. In this way, the particulate matter in the atomizing chamber 106 can be reduced, the atomizer 30 can be prevented from being blocked, so as to ensure the atomization effect and extend the service life of the atomizer 30. Optionally, the housing 10 has a partition 1122 that separates the settling chamber 108 from the atomizing chamber 106. A third connecting port 109 is located at the bottom of the partition 1122. The partition 1122 divides the third connecting port 109 into a first half-port 1091 and a second half-port 1092. The first half-port 1091 connects to the settling chamber 108, and the second half-port 1092 connects to the atomizing chamber 106. In this way, the condensed water that has settled in the settling chamber 108 is output from the first half-port 1091 and then input into the atomizing chamber 106 through the second half-port 1092.

[0076] The housing 10 also has a drain port 110 communicating with the third communication port 109. Impurities in the water storage chamber 107 can be discharged through the drain port 110 to prevent blockage of the water storage chamber 107. Figure 1As shown, when applied to a gas-fired water heater, the drain port 110 can be connected to the drain pipe 340 of the gas-fired water heater. One end of the drain pipe 340 is connected to the drain port 110, and the other end is used to discharge sewage to the outside of the gas-fired water heater. When the settling chamber 108 is clogged due to excessive particulate impurities, sewage can be discharged through the drain port 110 and the drain pipe 340 to remove the blockage, ensuring that condensate can smoothly enter the atomization chamber 106 for atomization and discharge, and preventing excessive condensate from flowing back into the main body 200 of the gas-fired water heater. In practical applications, the outlet end of the drain pipe 340 (i.e., the end furthest from the drain port 110) is connected to the bottom of the gas-fired water heater. The outlet end of the drain pipe 340 is equipped with a sealing device or a switch valve. During normal condensation and atomization, the outlet end of the drain pipe 340 is sealed, and at this time, the drain pipe 340 can also play a certain role in storing condensate. When sewage needs to be discharged, the outlet end of the drain pipe 340 is opened for sewage discharge.

[0077] like Figure 6 As shown, in one embodiment, the condensation atomizing device 100 further includes a liquid level detection module 60, which is used to detect the liquid level in the atomizing chamber 106, and the atomizer 30 is used to turn on or off according to the signal fed back by the liquid level detection module 60.

[0078] In this embodiment, the liquid level detection module 60 can detect the liquid level in the atomizing chamber 106, and the atomizer 30 can be turned on or off according to the liquid level in the atomizing chamber 106 to avoid the atomizer 30 burning dry when the liquid level in the atomizing chamber 106 is too low, or the atomizer not atomizing in time when the liquid level in the atomizing chamber 106 is too high. When applied to a gas-fired water heater, the liquid level detection module 60 and the atomizer 30 can be electrically connected to the control system of the gas-fired water heater. When the liquid level in the atomizing chamber 106 is higher than the first preset liquid level, the control system controls the atomizer 30 to start to atomize the condensate in the atomizing chamber 106; when the liquid level in the atomizing chamber 106 is higher than the second preset liquid level, the control system issues an alarm signal and shuts down the gas-fired water heater, so that the condensing gas-fired water heater no longer produces condensate. In this way, the liquid level in the atomizing chamber 106 can be prevented from rising further and flowing back into the combustion chamber of the main body 200 of the gas-fired water heater, thus providing protection for the entire unit. The liquid level detection module 60 can be a contact liquid level sensor (such as a differential pressure liquid level sensor, a float-type liquid level sensor, a capacitive liquid level sensor, etc.) or a non-contact liquid level sensor (such as an ultrasonic liquid level sensor, a laser liquid level sensor, etc.).

[0079] like Figure 6As shown, in one embodiment, the liquid level detection module 60 includes a float 61 and a Hall sensor 62. The float 61 is provided with a magnetic component. The bottom wall of the atomizing chamber 106 is provided with an upwardly extending fixing post 1123. The top of the fixing post 1123 is provided with a limiting member 70. The float 61 is movably fitted onto the fixing post 1123. The Hall sensor 62 is located at the end of the fixing post 1123 away from the limiting member 70.

[0080] In this embodiment, a magnet is wrapped inside the float 61. The movement of the float 61 can drive the magnet to move relative to the Hall sensor 62 to generate a changing magnetic field. The Hall sensor 62 is electrically connected to the control system to send a sensing signal to the control system. The control system then controls the working status of the atomizer 30 or the gas water heater based on the sensing signal. The first preset liquid level is the first sensing point, and the second preset liquid level is the second sensing point. When the liquid level in the atomizing chamber 106 reaches above the first preset liquid level, the float 61 moves upward along the fixed column 1123 under the action of buoyancy and leaves the first sensing point. After receiving the signal that it has left the first sensing point, the control system controls the atomizer 30 to start. The atomizer 30 atomizes the condensate in the atomizing chamber 106 and discharges it with the flue gas. When the liquid level in the atomizing chamber 106 reaches the second preset liquid level, the float 61 also rises to the second sensing point under the action of buoyancy and stops rising under the limit of the limiting member 70 (e.g., the limiting rubber plug). After receiving the signal of the second sensing point, the control system issues a high water level alarm signal and shuts down the gas water heater to prevent the liquid level from rising further and flowing back into the combustion chamber of the gas water heater body 200, thus playing a role in protecting the whole machine.

[0081] Based on the above embodiments, the housing 10 includes a first sub-housing 111 and a second sub-housing 112. The first sub-housing 111 is located above the second sub-housing 112. The first sub-housing 111 has a downward open end, and the second sub-housing 112 has an upward open end. The open end of the first sub-housing 111 and the open end of the second sub-housing 112 are mated and sealed together.

[0082] In this embodiment, the housing 10 includes a first sub-housing 111 and a second sub-housing 112. During manufacturing, the first sub-housing 111 and the second sub-housing 112 can be formed separately and then assembled. This facilitates the construction of a relatively complex flue gas channel 105 and atomizing chamber 106 within the housing 10. The first sub-housing 111 and the second sub-housing 112 can be detachably connected, including but not limited to using fasteners (such as screws and bolts) or snap-fit ​​connections; alternatively, they can be connected and fixed by welding or riveting. To facilitate the removal of the condenser heat exchanger 20 inside the housing 10 for cleaning or maintenance, the first sub-housing 111 and the second sub-housing 112 can optionally be detachably connected. The open end of the first sub-housing 111 and the open end of the second sub-housing 112 are mated and sealed together to prevent leakage of flue gas or condensate from the mating area.

[0083] Optionally, a sealing element 40 is provided between the first sub-shell 111 and the second sub-shell 112. The sealing element 40 seals the mating portion of the first sub-shell 111 and the second sub-shell 112 to prevent flue gas from leaking out from the connection. The sealing element 40 may include, but is not limited to, sealant or sealing rings. Optionally, the open end of the second sub-shell 112 has a sealing groove, and the sealing element 40 is housed within the sealing groove.

[0084] Based on the above embodiments, when the first sub-shell 111 and the second sub-shell 112 are joined vertically, the exhaust port 102 can be located in the first sub-shell 111, and the exhaust port 101, water inlet 103, water outlet 104, second connecting port 1072, third connecting port 109, and sewage outlet 110 can be located in the second sub-shell 112. A flue gas passage 105 can be constructed within the first shell 111, and an atomizing chamber 106, a water storage chamber 107, and a settling chamber 108 can be constructed within the second sub-shell 112. When the shell 10 includes a water inlet connector 113 and a water outlet connector 114, the water inlet connector 113 and the water outlet connector 114 can be simultaneously located on either the first sub-shell 111 or the second sub-shell 112, or one of the water inlet connector 113 and the water outlet connector 114 can be located on the first sub-shell 111, and the other on the second sub-shell 112. Optionally, both the inlet connector 113 and the outlet connector 114 are located in the second sub-shell 112 to facilitate connection with the pipes below. Optionally, the inlet connector 113 and the outlet connector 114 are integrally formed in the second sub-shell 112, which simplifies the manufacturing process and reduces the risk of leakage.

[0085] like Figure 1 and Figure 2As shown, this utility model also proposes a gas-fired water heating device, which includes a condensation atomization device 100. The specific structure of the condensation atomization device 100 is as described in the above embodiments. Since this gas-fired water heating device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. Among them, the gas-fired water heating device includes, but is not limited to, gas water heaters, gas wall-hung boilers, etc.

[0086] Taking a gas water heater as an example, in one embodiment, the gas water heater includes a condenser atomizing device 100 and a gas water heater body 200. The gas water heater body 200 includes a fan 210, a burner 220, and a main heat exchanger 230 arranged from bottom to top. The fan 210 is used to blow air into the burner 220 and to drive flue gas to flow from the burner 220 toward the main heat exchanger 230. The housing 10 of the condenser atomizing device 100 is located at the top of the gas water heater body 200.

[0087] In this embodiment, a forced-draft direct-fired condensing gas water heater is disclosed. The main body 200 of the gas water heater serves as the main component for combustion and heat exchange. The main body 200 includes a fan 210, a burner 220, and a main heat exchanger 230 arranged from bottom to top. The high-temperature flue gas generated by the combustion of the burner 220 can flow from bottom to top to the main heat exchanger 230 under the drive of the fan 210 to heat the water inside the main heat exchanger 230 and realize the hot water function. At the same time, the fan 210 can also blow air into the burner 220 to provide secondary air replenishment to the burner 220 to ensure more complete combustion. The main body 200 of the gas-fired water heater may further include a combustion chamber housing 250. The bottom of the combustion chamber housing 250 has an air inlet communicating with the air outlet of the fan 210. The burner 220 is located inside the combustion chamber housing 250 near the air inlet, and the main heat exchanger 230 is located at the top of the combustion chamber housing 250. The area inside the combustion chamber housing 250 between the burner 220 and the main heat exchanger 230 forms a combustion chamber. Thus, the flame generated by the burner 220 can fully combust within the combustion chamber to produce high-temperature flue gas, which then flows upwards along the combustion chamber to the main heat exchanger 230. Furthermore, the main body 200 of the gas-fired water heater may also include a gas proportional valve communicating with the gas inlet of the burner 220. The gas proportional valve controls the amount of gas supplied to the burner 220 to ensure more complete combustion.

[0088] When the gas-fired water heater is working, the fan 210 blows air into the burner 220, driving the high-temperature flue gas generated by combustion in the burner 220 to flow to the main heat exchanger 230 for primary heat exchange. After primary heat exchange, the flue gas enters the flue gas passage 105 through the flue gas inlet 101 for secondary heat exchange with the condensing heat exchanger 20, so that the latent heat of the flue gas is fully utilized. After heat exchange, condensate water is generated on the surface of the condensing heat exchanger 20. The condensate water flows into the atomization chamber 106, where the atomizer 30 atomizes the condensate water. The atomized condensate water enters the flue gas passage 105 and is discharged from the exhaust port 102 with the flue gas. In this way, condensate water can be discharged without the need for an external drain pipe, which improves the installation convenience of the condensing gas-fired water heater. Furthermore, the elimination of the need for an external drain pipe improves the overall appearance integrity of the unit, resulting in a better overall appearance and a more aesthetically pleasing design.

[0089] like Figure 1 and Figure 2 As shown, in one embodiment, the gas-fired water heater further includes a piping system 300, which includes an inlet pipe 310, an outlet pipe 320, and a delivery pipe 330. The housing 10 of the condensing atomizing device 100 has an inlet connector 113 and an outlet connector 114. The inlet pipe 310 is connected to the inlet end of the condensing heat exchanger 20 via the inlet connector 113. The outlet end of the condensing heat exchanger 20 is connected to one end of the delivery pipe 330 via the outlet connector 114. The other end of the delivery pipe 330 is connected to the inlet end of the main heat exchanger 230. The outlet end of the main heat exchanger 230 is connected to the outlet pipe 320.

[0090] In this embodiment, cold water can enter the condenser heat exchanger 20 through the inlet pipe 310 for preheating, and then be transported through the condenser heat exchanger 20 to the main heat exchanger 230 for reheating via the water supply pipe 330. This results in a relatively high inlet water temperature entering the main heat exchanger 230, which can quickly heat the water in the main heat exchanger 230 to a preset temperature. The hot water in the main heat exchanger 230 is then transported to the water user through the outlet pipe 320, thus effectively improving the hot water output efficiency. To facilitate the connection of the condensing heat exchanger 20 with the inlet pipe 310 and the supply pipe 330, the housing 10 has an inlet connector 113 and an outlet connector 114. The inlet connector 113 has an inlet interface 103 and an inlet connection part 1131 at both ends, and the outlet connector 114 has an outlet interface 104 and an outlet connection part 1141 at both ends. The inlet interface 103 and the outlet interface 104 are exposed outside the housing 10 so as to be connected to the inlet pipe 310 and the supply pipe 330 respectively. The inlet connection part 1131 and the outlet connection part 1141 are placed inside the flue gas passage 105. The inlet end of the condensing heat exchanger 20 is connected to the inlet connection part 1131, and the outlet end of the condensing heat exchanger 20 is connected to the outlet connection part 1141.

[0091] like Figure 1 As shown, in one embodiment, the gas-fired water heater body 200 has a first sidewall and a second sidewall opposite to each other along its width direction. The housing 10 is disposed on the top of the gas-fired water heater body 200. The inlet connector 113 and the outlet connector 114 are disposed on the bottom of the housing 10. The portion of the housing 10 where the inlet connector 113 and the outlet connector 114 are disposed protrudes from the second sidewall toward the side away from the first sidewall, so as to form an installation space with the second sidewall. The piping system 300 is accommodated in the installation space.

[0092] In this embodiment, the housing 10 is located on top of the main body 200 of the gas water heater, meaning the entire condenser atomizing device 100 is positioned on top of the main body 200. This fully utilizes the space above the main body 200, reducing the space occupied in the width direction compared to placing the condenser atomizing device 100 on the side of the main body 200, thus reducing the overall width of the gas water heater. The portion of the housing 10 with the inlet connector 113 and outlet connector 114 protrudes away from the first sidewall relative to the second sidewall. The area below this protrusion forms an installation space. By centrally arranging the piping system 300 of the gas water heater within this installation space, the integrated arrangement of the piping system 300 is facilitated, resulting in a more organized layout and saving space. Furthermore, the electrical control system of the gas water heater can also be located within this installation space. Optionally, the water system and electrical control system are separated by a partition to achieve water and electricity separation, ensuring the safety of the gas water heater.

[0093] like Figure 2 As shown, in one embodiment, the main body 200 of the gas-fired water heater further includes a smoke hood 240. The smoke hood 240 is located on top of the main heat exchanger 230, with its bottom open towards the main heat exchanger 230. The top of the smoke hood 240 has a smoke passage opening. The housing 10 is located on top of the smoke hood 240, and the smoke inlet 101 is located on the bottom wall of the housing 10 and communicates with the smoke passage opening. In this embodiment, the smoke hood 240 can collect the flue gas from the outlet side of the main heat exchanger 230 and then transport it into the housing 10 via the smoke passage opening and the smoke inlet 101, which helps to improve the flue gas transport efficiency.

[0094] like Figure 2 and Figure 9 As shown, in one embodiment, the housing 10 has a guide cylinder 1121 extending upward from the periphery of the smoke inlet 101, and the smoke hood 240 has a smoke outlet pipe 241 extending upward from the periphery of the smoke outlet, the smoke outlet pipe 241 being inserted into the guide cylinder 1121. In this embodiment, by inserting the smoke outlet pipe 241 of the smoke hood 240 into the guide cylinder 1121 of the housing 10, the installation of the housing 10 and the smoke hood 240 can be facilitated, and the assembly of the housing 10 and the smoke hood 240 can be made more stable and reliable, preventing the housing 10 from shaking under the impact of smoke. Furthermore, the smoke outlet pipe 241 can directly send the smoke in the smoke hood 240 into the smoke passage 105, preventing smoke leakage.

[0095] In addition, gas-fired water heaters also include a casing 400 (such as...). Figure 1 and Figure 2(Only the bottom shell of the housing 400 is shown). The main body 200 of the gas water heater and the condenser atomizing device 100 are both installed inside the housing 400. The bottom of the housing 400 may be provided with a water inlet connector for connecting the water inlet pipe 310, a water outlet connector for connecting the water outlet pipe 320, and an air inlet connector for connecting the air inlet pipe.

[0096] like Figure 2 and Figure 9 As shown, optionally, the housing 10 of the condensation atomizing device 100 further includes a smoke exhaust pipe 115, the bottom end of which is connected to the flue gas passage 105, and the top end of which is provided with the smoke exhaust port 102. One end of the smoke exhaust pipe 115 with the smoke exhaust port 102 extends out of the housing 400. Figure 4 As shown, optionally, an antifreeze check valve 80 is also provided inside the flue pipe 115. Thus, when the gas-fired water heater is not used in winter, the antifreeze check valve 80 closes the flue pipe 115, preventing cold air from flowing back into the machine and causing the water in the pipe to freeze. Optionally, the condensation atomizing device 100 also includes a connecting bracket 90 located on the housing 10. The connecting bracket 90 is connected and fixed to the housing 400 to improve the installation stability of the condensation atomizing device 100.

[0097] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A condensation atomization device, characterized in that, include: The housing has a smoke inlet, a smoke outlet, a water inlet, and a water outlet. The housing has an internal smoke channel and an atomizing chamber. The smoke channel has at least a smoke inlet channel and a first sub-channel. The smoke inlet, the smoke inlet channel, the first sub-channel, and the smoke outlet are connected along the smoke flow direction. The atomizing chamber is located downstream of the first sub-channel and connected to the smoke outlet in the smoke flow direction. The height of the smoke inlet channel is greater than the height of the first sub-channel. A condensing heat exchanger is at least partially disposed within the first sub-channel, and the condensing heat exchanger connects the inlet water interface to the outlet water interface. as well as An atomizer is disposed in the housing. The atomizing chamber is used to collect condensate water generated by the condenser heat exchanger. The atomizer is used to atomize the condensate water in the atomizing chamber.

2. The condensation atomization device as described in claim 1, characterized in that, The flue gas passage also includes a second sub-passage. The smoke inlet passage, the first sub-passage, and the second sub-passage are arranged and connected in a horizontal direction. The smoke inlet is located at the bottom of the smoke inlet passage, the smoke outlet is located at the top of the second sub-passage, and the atomizing chamber is located below the second sub-passage. The atomizing chamber, the second sub-passage, and the smoke outlet are arranged and connected in a vertical direction.

3. The condensation atomization device as described in claim 2, characterized in that, The housing has a guide surface facing the smoke inlet, and the guide surface is inclined downward toward the side closer to the first sub-channel; And / or, the height of the second sub-channel is greater than the height of the first sub-channel; And / or, the first sub-channel extends from the smoke inlet channel toward the second sub-channel and slopes downward.

4. The condensation atomization device as described in claim 1, characterized in that, The condenser heat exchanger includes a heat exchange tube, which has a main heat exchange tube section and connecting tube sections respectively disposed at both ends of the main heat exchange tube section. The main heat exchange tube section is disposed in the first sub-channel.

5. The condensation atomization device as described in claim 4, characterized in that, The flue gas passage further includes a second sub-passage, which is connected to the end of the first sub-passage away from the flue gas passage. The main heat exchange pipe section is constructed into a meandering serpentine pipe structure, and the two connecting pipe sections are located in the second sub-channel, wherein one of the connecting pipe sections is connected to the water inlet and the other connecting pipe section is connected to the water outlet. And / or, the housing further includes an inlet connector and an outlet connector, the two ends of the inlet connector are respectively provided with an inlet connection part and the inlet interface, the two ends of the outlet connector are respectively provided with an outlet connection part and the outlet interface, the inlet connection part and the outlet connection part are placed in the second sub-channel, the condenser heat exchanger includes a heat exchange tube, the inlet end of the heat exchange tube is detachably connected to the inlet connection part, and the outlet end of the heat exchange tube is detachably connected to the outlet connection part.

6. The condensation atomization device as described in claim 1, characterized in that, The condenser heat exchanger includes heat exchange tubes, which are configured as a bent pipe structure formed by integrally winding a single tube. And / or, at least a portion of the heat exchange tube is made of corrugated pipe.

7. The condensation atomization device as described in claim 1, characterized in that, The housing also has a water storage cavity located below the first sub-channel. The atomizing cavity is located on the side of the water storage cavity away from the smoke inlet. The top of the water storage cavity is provided with a first communication port communicating with the first sub-channel, and the side of the water storage cavity is provided with a second communication port communicating with the atomizing cavity.

8. The condensation atomizing device as described in claim 7, characterized in that, The housing is provided with a baffle, and the first sub-channel and the water storage cavity are respectively located on both sides of the baffle; And / or, the housing also has a settling chamber, a third connecting port and a drain port, the second connecting port being connected to the settling chamber, the settling chamber being connected to the atomizing chamber through the third connecting port, the settling chamber being used to settling impurities in the condensate transported by the water storage chamber and then outputting it to the atomizing chamber, and the drain port being connected to the third connecting port.

9. The condensation atomizing device as described in claim 8, characterized in that, The baffle is provided with an upwardly protruding first rib, and the bottom side of the condensing heat exchanger abuts against the first rib; and / or, the top wall of the first sub-channel is provided with a downwardly protruding second rib, and the top side of the condensing heat exchanger abuts against the second rib.

10. The condensation atomizing device as described in claim 1, characterized in that, The condensation atomization device further includes a liquid level detection module, which is used to detect the liquid level in the atomization chamber. The atomizer is used to turn on or off according to the signal fed back by the liquid level detection module. The liquid level detection module includes a float and a Hall sensor. The float is provided with a magnetic component. The bottom wall of the atomization chamber is provided with an upwardly extending fixed column. The top of the fixed column is provided with a limiting component. The float is movably fitted onto the fixed column. The Hall sensor is located at the end of the fixed column away from the limiting component.

11. The condensation atomizing device according to any one of claims 1 to 10, characterized in that, The housing includes a first sub-housing and a second sub-housing. The first sub-housing is located above the second sub-housing. The first sub-housing has a downward-facing open end, and the second sub-housing has an upward-facing open end. The open ends of the first sub-housing and the open ends of the second sub-housing are mated and sealed together.

12. A gas-fired hot water device, characterized in that, Includes the condensation atomization device as described in any one of claims 1 to 11.

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