Gas water heating equipment

Abstract

The utility model discloses gas water heating equipment, and relates to the technical field of water heating equipment. The water collecting and smoke discharging device comprises a smoke collecting hood and a smoke discharging pipe which are connected, the smoke collecting hood is connected with the equipment body and used for collecting smoke and condensate water generated during operation of the equipment body, and the smoke collecting hood is provided with a smoke collecting cavity communicated with the equipment body and a water collecting cavity communicated with the smoke collecting cavity; the smoke exhaust pipe is provided with a smoke inlet communicated with the smoke collecting cavity and a smoke exhaust port communicated with the smoke inlet; the atomizing device comprises a booster pump and an atomizing nozzle, the water inlet end of the booster pump is communicated with the water collecting cavity, the water outlet end of the booster pump is communicated with the atomizing nozzle, and the atomizing end of the atomizing nozzle is communicated with the smoke collecting cavity and faces the smoke inlet. According to the technical scheme provided by the utility model, the atomization efficiency and the discharge efficiency of the condensate water can be effectively improved, and the volume miniaturization of the gas water heating equipment can be facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water equipment, in particular to a gas hot water equipment. Background Art

[0002] In the context of energy conservation and emission reduction, improving the energy efficiency of gas-fired water heaters has become an industry trend. Traditional gas-fired water heaters generally achieve high energy efficiency by utilizing the latent heat of flue gas vaporization. However, this process produces a large amount of condensed water. Therefore, during installation, a longer external drain pipe is usually required to drain the condensed water into a sewer or sink, making gas-fired water heaters inconvenient to install.

[0003] In the related art, some gas water heaters are equipped with an atomization module that can atomize the generated condensed water and discharge it with the flue gas. However, the atomization efficiency is usually low due to insufficient power of the atomization module, and the atomization module is mostly set near the outlet of the exhaust pipe. A longer pipe needs to be connected to the atomization module to transport the condensed water, which makes the transportation distance of the condensed water long, resulting in the atomization module being unable to atomize the condensed water in time, thereby affecting the condensed water discharge efficiency. Moreover, the longer pipe will take up more installation space, which is not conducive to the miniaturization of the gas water heater. Utility Model Content

[0004] The main purpose of the utility model is to provide a gas water heater, which aims to effectively improve the atomization efficiency and discharge efficiency of condensed water and facilitate the miniaturization of the gas water heater.

[0005] To achieve the above-mentioned purpose, the gas water heater proposed in this utility model includes:

[0006] Equipment body;

[0007] The water collection and smoke exhaust device comprises a smoke collection hood and a smoke exhaust pipe connected to each other, wherein the smoke collection hood is connected to the device body and is used to collect smoke and condensed water generated by the operation of the device body, the smoke collection hood has a smoke collection chamber connected to the device body, and a water collection chamber connected to the smoke collection chamber; the smoke exhaust pipe has a smoke inlet connected to the smoke collection chamber, and a smoke exhaust port connected to the smoke inlet; and

[0008] The atomizing device includes a booster pump and an atomizing nozzle. The water inlet end of the booster pump is connected to the water collecting chamber, the water outlet end of the booster pump is connected to the atomizing nozzle, and the atomizing end of the atomizing nozzle is connected to the smoke collecting chamber and faces the smoke inlet.

[0009] In one embodiment, the water collecting chamber is located below the smoke collecting chamber and communicates with the bottom of the smoke collecting chamber, and the smoke exhaust pipe is located above the smoke collecting chamber and communicates with the top of the smoke collecting chamber.

[0010] In one embodiment, the smoke exhaust pipe extends upward from the top of the smoke hood, the smoke inlet is provided at the bottom end of the smoke exhaust pipe, the smoke exhaust port is provided at the top end of the smoke exhaust pipe, and the spray direction of the atomizing nozzle is consistent with the extension direction of the smoke exhaust pipe.

[0011] In one embodiment, the water collecting chamber and the smoke exhaust pipe are staggered in the transverse direction, a concave cavity is formed on the outer side of the bottom of the smoke collecting hood, the concave cavity and the water collecting chamber are arranged side by side in the transverse direction, the smoke exhaust pipe is correspondingly arranged above the concave cavity, and at least part of the atomization device is accommodated in the concave cavity.

[0012] In one embodiment, the atomizing device further comprises a delivery pipeline, the delivery pipeline connects the water collecting chamber with the atomizing nozzle, and the booster pump is connected in series to the delivery pipeline;

[0013] And / or, a filter module is provided between the water inlet end of the booster pump and the water collecting chamber, and the filter module is used to filter the condensed water.

[0014] In one embodiment, the water collection and smoke exhaust device further includes a liquid level detection module provided in the smoke collection hood, the liquid level detection module being communicatively connected to the booster pump, the liquid level detection module being used to detect the liquid level in the water collection chamber, the booster pump being used to start operating when the liquid level in the water collection chamber is higher than a first preset liquid level, and to stop operating when the liquid level in the water collection chamber is lower than a second preset liquid level, wherein the first preset liquid level is higher than the second preset liquid level;

[0015] And / or, the water collecting chamber is provided with a drain outlet, and the drain outlet has an open state and a blocked state.

[0016] In one embodiment, the water collection chamber includes a water collection chamber and a sedimentation chamber, the side wall of the water collection chamber is provided with a water outlet connected to the water inlet end of the booster pump, the sedimentation chamber is provided at the bottom of the water collection chamber, and the bottom wall of the water collection chamber is provided with a sedimentation outlet connected to the sedimentation chamber, and the lowest position of the water outlet is set higher than the sedimentation outlet.

[0017] In one embodiment, a partition is provided in the smoke collection hood, the partition dividing the smoke collection chamber into a first cavity and a second cavity, the first cavity is located on a side of the second cavity close to the device body, the water collection chamber is located below the first cavity, the top of the water collection chamber is connected to the first cavity and the second cavity respectively, the smoke exhaust pipe is connected to the top of the second cavity, and the spray end of the atomizing nozzle is connected to the second cavity;

[0018] And / or, a partition is provided in the smoke collection hood, which divides the smoke collection chamber into a first cavity and a second cavity, the first cavity is connected to the second cavity, the first cavity is located upstream of the smoke flow direction, the second cavity is located downstream of the smoke flow direction, the atomizing nozzle is located directly below the second cavity, and the upward projection of the atomizing nozzle does not fall into the area where the first cavity is located.

[0019] In one embodiment, a partition is provided in the smoke collection hood, the partition dividing the smoke collection chamber into a first cavity and a second cavity, a smoke outlet is formed between the bottom end of the partition and the bottom plate of the smoke collection hood, the first cavity is connected to the second cavity through the smoke outlet, the atomizing nozzle is located downstream of the smoke outlet, and the highest position of the atomizing nozzle is lower than the bottom end of the partition;

[0020] And / or, the smoke collection chamber includes a first cavity and a second cavity, the first cavity is connected to the second cavity via a smoke outlet, the equipment main body includes a control system and a fan electrically connected to the control system, the fan is used to drive the smoke generated by the operation of the equipment main body to flow into the smoke collection chamber, the fan is also used to identify whether the smoke outlet is blocked based on the wind pressure, and send a fault signal to the control system when the smoke outlet is blocked.

[0021] In one embodiment, the device body includes a fan, a burner, and a heat exchanger arranged from top to bottom, the smoke collection hood is arranged at the bottom of the heat exchanger, and the fan is used to drive the air flow through the burner and the heat exchanger into the smoke collection chamber;

[0022] Alternatively, the equipment body includes a fan, a burner and a main heat exchanger arranged from bottom to top, the smoke collection hood is arranged on the top of the main heat exchanger, and the equipment body also includes a condensing heat exchanger arranged in the smoke collection chamber, the water outlet end of the condensing heat exchanger is connected to the water inlet end of the main heat exchanger, and the fan is used to drive the airflow through the burner and the main heat exchanger into the smoke collection chamber.

[0023] Alternatively, the equipment body includes a fan, a main heat exchanger and a burner arranged from top to bottom, the smoke collection hood is arranged on one side of the fan, the air outlet of the fan is connected to the smoke collection chamber, the equipment body also includes a condensing heat exchanger arranged in the smoke collection chamber, the water outlet end of the condensing heat exchanger is connected to the water inlet end of the main heat exchanger, and the fan is used to drive the airflow through the burner, the main heat exchanger and the fan into the smoke collection chamber.

[0024] When the gas water heater of the present invention is in operation, the flue gas and condensed water generated by the operation of the main body of the device can first enter the smoke collection chamber. The flue gas in the smoke collection chamber then enters the smoke exhaust pipe through the smoke inlet, flows along the smoke exhaust pipe to the smoke outlet and is discharged. After entering the smoke collection chamber, the condensed water can continue to flow into the water collection chamber for storage. When the booster pump is in operation, it can pump the condensed water in the water collection chamber to the atomizing nozzle, and the condensed water is atomized and sprayed out through the atomizing nozzle. The booster pump can also increase the pressure of the condensed water delivered to the atomizing nozzle, so that the atomizing nozzle has a better atomization effect on the condensed water and a higher atomization efficiency. In addition, the spray end of the atomizing nozzle is directed toward the smoke inlet of the smoke exhaust pipe. Under the pressure of the booster pump, the atomized condensed water sprayed by the atomizing nozzle has a longer distance and can reach the smoke inlet directly. The flue gas flow rate at the smoke inlet is relatively high. In this way, the high-speed flue gas can quickly entrain the atomized condensed water and flow toward the smoke outlet, thereby improving the discharge efficiency of the atomized condensed water. In addition, since the smoke collection chamber and the water collection chamber are both integrated into the smoke collection hood and are relatively close to each other, the condensed water in the water collection chamber can be transported to the atomizing nozzle without excessively long pipes. The atomizing nozzle then atomizes and sprays the condensed water into the smoke collection chamber. This shortens the condensed water transportation distance, allowing the atomizing nozzle to atomize the condensed water in a timely and efficient manner, further improving the atomization and discharge efficiency of the atomized condensed water. In addition, since the condensed water transportation distance is relatively short, the atomizing device does not need to be equipped with a long pipe for condensed water transportation, which can reduce the overall space occupied by the atomizing device and thus facilitate the miniaturization of the gas water heater. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 1 A schematic structural diagram of an embodiment of a gas water heater provided by the present utility model;

[0027] Figure 2 for Figure 1 Schematic diagram of flue gas emission during operation of gas water heater;

[0028] Figure 3 This is a structural diagram of another embodiment of the gas water heater provided by the present utility model;

[0029] Figure 4 for Figure 3 Schematic diagram of flue gas emission during operation of gas water heater;

[0030] Figure 5 A structural diagram of another embodiment of the gas water heater provided by the present invention;

[0031] Figure 6 for Figure 5 Schematic diagram of flue gas emissions during operation of gas water heater.

[0032] Description of Figure Numbers:

[0033] 100. Gas water heater; 10. Equipment body; 11. Fan; 12. Burner; 13. Heat exchanger; 13a. Main heat exchanger; 13b. Condensing heat exchanger; 21. Smoke hood; 211. Smoke collecting chamber; 211a. First chamber; 211b. Second chamber; 212. Water collecting chamber; 212a. Water collecting chamber; 212b. Settling chamber; 2121. Drain outlet; 2122. Water outlet; 2123. Settling outlet; 213. Concave cavity; 22. Smoke exhaust pipe; 221. Smoke inlet; 222. Smoke exhaust outlet; 224. Smoke outlet; A. First preset liquid level; B. Second preset liquid level; 23. Partition; 30. Atomizing device; 31. Booster pump; 32. Atomizing nozzle; 33. Delivery pipeline.

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

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

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] In the context of energy conservation and emission reduction, improving the energy efficiency of gas-fired water heaters has become an industry trend. Traditional gas-fired water heaters generally achieve high energy efficiency by utilizing the latent heat of flue gas vaporization. However, this process produces a large amount of condensed water. Therefore, during installation, a longer external drain pipe is usually required to drain the condensed water into a sewer or sink, making gas-fired water heaters inconvenient to install.

[0039] In the related art, some gas water heaters are equipped with an atomization module that can atomize the generated condensed water and discharge it with the flue gas. However, the atomization efficiency is usually low due to insufficient power of the atomization module, and the atomization module is mostly set near the outlet of the exhaust pipe. A longer pipe needs to be connected to the atomization module to transport the condensed water, which makes the transportation distance of the condensed water long, resulting in the atomization module being unable to atomize the condensed water in time, thereby affecting the condensed water discharge efficiency. Moreover, the longer pipe will take up more installation space, which is not conducive to the miniaturization of the gas water heater.

[0040] The utility model proposes a gas water heater, which atomizes the condensed water and discharges it with the flue gas, thereby eliminating the need for an external drainage pipe, simplifying the installation of the gas water heater, and effectively improving the atomization efficiency and discharge efficiency of the condensed water, and is also conducive to the miniaturization of the gas water heater.

[0041] See also Figure 1 、 Figure 3 and Figure 5 In some embodiments of the present invention, the gas water heater 100 includes an equipment body 10 , a water collection and smoke exhaust device, and an atomization device 30 .

[0042] The gas water heater 100 includes, but is not limited to, gas water heaters, gas water heaters, and gas heating water heaters. The main body 10 of the gas water heater 100 constitutes the main structure of the gas water heater 100 and is used to enable the gas water heater 100 to perform functions such as combustion and heat exchange. The main body 10 may include components such as a fan 11, a burner 12, and a heat exchanger 13. The burner 12 generates high-temperature flue gas, which is driven by the fan 11 to flow to the heat exchanger 13. The high-temperature flue gas exchanges heat with the heat exchanger 13 to heat the water within the heat exchanger 13. The number of heat exchangers 13 can be one, two, or more, depending on actual needs. Furthermore, the main body 10 may include a gas proportional valve connected to the burner 12, a combustion chamber located between the burner 12 and the heat exchanger 13, and electronic control components for controlling the main body 10.

[0043] It is understandable that in actual applications, the gas water heater 100 has different models depending on the function of the fan 11 and the relative arrangement of the fan 11, burner 12, and heat exchanger 13. Taking a gas water heater as an example, for a strong-drum gas water heater, the air outlet of the fan 11 is connected to the burner 12, and the heat exchanger 13 is arranged on the side of the burner 12 away from the fan 11. The fan 11 blows air into the burner 12 to provide the burner 12 with secondary air required for combustion, and the fan 11 can drive the high-temperature flue gas generated by the combustion of the burner 12 toward the heat exchanger 13 to achieve efficient heat exchange. For a strong-draft gas water heater, the air inlet of the fan 11 is directed toward the heat exchanger 13, and the burner 12 is arranged on the side of the heat exchanger 13 away from the fan 11. The fan 11 drives the high-temperature flue gas generated by the combustion of the burner 12 toward the heat exchanger 13 to achieve efficient heat exchange. The flue gas after heat exchange enters the fan 11 and is then discharged from the air outlet of the fan 11. For a normal-firing gas water heater, the burner 12 is located at the bottom of the device body 10. The flame generated by the burner 12 is upward, and the flue gas flows from bottom to top to the heat exchanger 13. For a reverse-firing gas water heater, the burner 12 is located at the top of the device body 10. The flame generated by the burner 12 is downward, and the flue gas flows from top to bottom to the heat exchanger 13.

[0044] The device body 10 will generate smoke and condensed water during operation. The smoke and condensed water generated by the device body 10 can be collected by the water collecting and exhausting device, and the smoke can be discharged. The water collecting and exhausting device includes a smoke hood 21 and a smoke exhaust pipe 22. The smoke hood 21 and the smoke exhaust pipe 22 can be an integrally formed structure or a separate structure that is assembled. Optionally, the smoke hood 21 and the smoke exhaust pipe 22 are integrally formed, which can simplify the manufacturing process and improve the overall structural strength. The smoke hood 21 has a smoke collecting chamber 211 connected to the device body 10, and a water collecting chamber 212 connected to the smoke collecting chamber 211; the smoke exhaust pipe 22 has a smoke inlet 221 connected to the smoke collecting chamber 211, and a smoke exhaust port 222 connected to the smoke inlet 221. The smoke and condensed water generated by the operation of the device body 10 can first enter the smoke collection chamber 211. The smoke in the smoke collection chamber 211 then enters the smoke exhaust pipe 22 through the smoke inlet 221, flows along the smoke exhaust pipe 22, and is discharged to the smoke exhaust port 222. After entering the smoke collection chamber 211, the condensed water can continue to flow into the water collection chamber 212, where it is collected and stored.

[0045] To achieve atomized discharge of condensed water, the gas water heater 100 further includes an atomizing device 30, which includes a booster pump 31 and an atomizing nozzle 32. The water inlet of the booster pump 31 is connected to the water collection chamber 212, and the water outlet of the booster pump 31 is connected to the atomizing nozzle 32. The atomizing end of the atomizing nozzle 32 is connected to the smoke collection chamber 211 and faces the smoke inlet 221. Thus, when the booster pump 31 is in operation, it can pump the condensed water in the water collection chamber 212 to the atomizing nozzle 32. The atomizing nozzle 32, through internal pressure, squeezes the condensed water into the nozzle. An impact element of an iron sheet or other shape can be placed inside the nozzle. The high-speed flowing condensed water impacts these elements, rebounding to form fine atomized particles. These particles are then ejected through the nozzle outlet, thereby spraying the atomized condensed water into the smoke collection chamber 211. After entering the smoke collection chamber 211, the atomized condensed water can enter the smoke exhaust pipe 22 through the smoke inlet 221 along with the smoke, and is ultimately discharged from the smoke exhaust outlet 222. By atomizing the condensed water and discharging it with the flue gas, no external drain pipe is required, thus simplifying the installation of the gas water heater 100.

[0046] When the gas water heater 100 of the present invention is in operation, the flue gas and condensed water generated by the operation of the main body 10 of the device can first enter the smoke collecting chamber 211, and the flue gas in the smoke collecting chamber 211 then enters the smoke exhaust pipe 22 through the smoke inlet 221, flows along the smoke exhaust pipe 22 to the smoke exhaust port 222 for discharge, and the condensed water can continue to flow into the water collecting chamber 212 for storage after entering the smoke collecting chamber 211. When the booster pump 31 is in operation, the condensed water in the water collecting chamber 212 can be pumped to the atomizing nozzle 32, and the condensed water is atomized and sprayed out through the atomizing nozzle 32. The booster pump 31 can also pressurize the condensed water delivered to the atomizing nozzle 32, so that the atomizing effect of the atomizing nozzle 32 on the condensed water is better and the atomization efficiency is higher. Furthermore, the spray end of the atomizing nozzle 32 is directed toward the smoke inlet 221 of the smoke exhaust pipe 22. Under the pressure of the booster pump 31, the atomized condensed water sprayed by the atomizing nozzle 32 has a greater distance and can directly reach the smoke inlet 221. The smoke flow velocity at the smoke inlet 221 is relatively high. In this way, the high-speed flue gas can quickly carry the atomized condensed water toward the smoke exhaust port 222, thereby improving the discharge efficiency of the atomized condensed water. In addition, since the smoke collection chamber 211 and the water collection chamber 212 are both integrated into the smoke collection hood 21 and are close to each other, the condensed water in the water collection chamber 212 can be transported to the atomizing nozzle 32 without an excessively long pipe, and then atomized and sprayed by the atomizing nozzle 32 into the smoke collection chamber 211. In this way, the condensed water transportation distance can be shortened, so that the atomizing nozzle 32 can atomize the condensed water in a timely and efficient manner, further improving the atomization and discharge efficiency of the atomized condensed water. In addition, since the transportation distance of the condensed water is short, the atomizing device 30 does not need to be equipped with a long pipe for condensed water transportation, which can reduce the overall occupied space of the atomizing device 30 and is conducive to the miniaturization of the gas water heater 100.

[0047] like Figure 1 、 Figure 3 and Figure 5 As shown, in some embodiments, the water collecting chamber 212 is located below the smoke collecting chamber 211 and communicates with the bottom of the smoke collecting chamber 211 , and the smoke exhaust pipe 22 is located above the smoke collecting chamber 211 and communicates with the top of the smoke collecting chamber 211 .

[0048] In this embodiment, the water collecting chamber 212 is located below the smoke collecting chamber 211, and the bottom of the smoke collecting chamber 211 is provided with a connecting port connected to the water collecting chamber 212. In this way, after the condensed water generated during the operation of the device body 10 enters the smoke collecting chamber 211, it can quickly flow into the water collecting chamber 212 under the action of gravity, so as to achieve rapid collection of the condensed water. Optionally, the inner wall surface of the smoke collecting chamber 211 is also provided with an inclined guide surface, so that the condensed water can enter the water collecting chamber 212 more smoothly through the guide surface. The smoke exhaust pipe 22 is located above the smoke collecting chamber 211, and the top of the smoke collecting chamber 211 is provided with a smoke inlet 221 connected to the smoke exhaust pipe 22. In this way, after the smoke generated during the operation of the device body 10 enters the smoke collecting chamber 211, it can flow upward to the smoke exhaust pipe 22 by natural convection, so as to achieve rapid exhaust of the smoke.

[0049] like Figure 1 As shown, in one embodiment, the smoke exhaust pipe 22 is extended upward from the top of the smoke hood 21, the bottom end of the smoke exhaust pipe 22 is provided with the smoke inlet 221, the top end of the smoke exhaust pipe 22 is provided with the smoke exhaust port 222, and the spray direction of the atomizing nozzle 32 is consistent with the extension direction of the smoke exhaust pipe 22.

[0050] In this embodiment, the smoke exhaust pipe 22 is a vertically extending straight pipe, with the smoke inlet 221 and the smoke exhaust port 222 located at opposite ends of the smoke exhaust pipe 22, ensuring smoother smoke flow and improved exhaust efficiency. Furthermore, the spray direction of the atomizing nozzle 32 aligns with the extension direction of the smoke exhaust pipe 22, ensuring that the direction of discharge of the atomized condensed water aligns with the flow direction of the smoke. This reduces resistance to the flow of the atomized condensed water and improves its discharge efficiency.

[0051] like Figure 1 、 Figure 3 and Figure 5 As shown, in some embodiments, the water collecting chamber 212 and the smoke exhaust pipe 22 are staggered in the transverse direction, and a concave cavity 213 is formed on the outer side of the bottom of the smoke collecting hood 21. The concave cavity 213 and the water collecting chamber 212 are arranged side by side in the transverse direction. The smoke exhaust pipe 22 is correspondingly arranged above the concave cavity 213, and at least part of the atomization device 30 is accommodated in the concave cavity 213.

[0052] In this embodiment, the water collecting chamber 212 and the smoke exhaust pipe 22 are staggered in the transverse direction, wherein the transverse direction can be the width direction of the device body 10 (for example, the left-right direction), or the thickness direction of the device body 10 (for example, the front-back direction). Optionally, the water collecting chamber 212 and the smoke exhaust pipe 22 are staggered in the width direction of the device body 10, wherein the connecting portion between the water collecting chamber 212 and the smoke collecting chamber 211 is arranged closer to one side of the device body 10 than the smoke exhaust pipe 22. The water collecting chamber 212 is convexly arranged at the bottom of the smoke collecting chamber 211, so that a concave cavity 213 is formed between the outer side of the bottom wall of the smoke collecting chamber 211 and the outer side wall of the water collecting chamber 212, and the concave cavity 213 is arranged exactly opposite the smoke exhaust pipe 22 at the top of the smoke collecting chamber 211. In this way, when installing the atomizing device 30, the space of the concave cavity 213 can be fully utilized, and at least part of the atomizing device 30 can be accommodated in the concave cavity 213, so that the overall structure is more compact, which is beneficial to reducing the space occupied by the atomizing device 30; and the atomizing device 30 is arranged closer to the atomizing chamber and the water collecting chamber 212, which can further shorten the transportation distance of the condensed water.

[0053] like Figure 1 、 Figure 3 and Figure 5 As shown, in some embodiments, the atomizing device 30 further includes a delivery pipeline 33, which connects the water collection chamber 212 with the atomizing nozzle 32. The booster pump 31 is connected in series to the delivery pipeline 33. Thus, when the booster pump 31 is in operation, it can extract condensed water from the water collection chamber 212 and deliver it to the atomizing nozzle 32 via the delivery pipeline 33 and the booster pump 31. Because the condensed water needs to be transported over a relatively short distance, the delivery pipeline 33 is also relatively short, thus occupying less space overall.

[0054] To prevent impurities in the condensate from entering the booster pump 31 and damaging it, in one embodiment, a filter module is provided between the water inlet of the booster pump 31 and the water collection chamber 212. The filter module is used to filter the condensate. Examples of filter modules include, but are not limited to, filter screens, filter membranes, and the like. For example, a filter module can be provided in the delivery pipeline 33 upstream of the water inlet of the booster pump 31.

[0055] like Figure 1 、 Figure 3 and Figure 5As shown, in some embodiments, the water collection and smoke exhaust device also includes a liquid level detection module (not shown) provided in the smoke collection hood 21, and the liquid level detection module is communicatively connected to the booster pump 31. The liquid level detection module is used to detect the liquid level in the water collection chamber 212, and the booster pump 31 is used to start running when the liquid level in the water collection chamber 212 is higher than a first preset liquid level A, and to stop running when the liquid level in the water collection chamber 212 is lower than a second preset liquid level B, and the first preset liquid level A is higher than the second preset liquid level B.

[0056] In this embodiment, the liquid level detection module can continuously detect the liquid level in the water collection chamber 212 in real time, or intermittently detect the liquid level in the water collection chamber 212. The liquid level detection module and the booster pump 31 can be electrically connected to the control system respectively to realize the communication connection between the liquid level detection module and the booster pump 31, thereby enabling the booster pump 31 to be opened and closed according to the liquid level in the water collection chamber 212. When the liquid level in the water collection chamber 212 is at a high level, for example, higher than the first preset level A, the booster pump 31 starts to operate, and then the condensed water in the water collection chamber 212 can be pumped out to the atomizing nozzle 32 for atomization. The atomized condensed water can be discharged with the flue gas to prevent excessive condensed water in the water collection chamber 212. When the liquid level in the water collection chamber 212 is at a low level, for example, lower than the second preset level B, the booster pump 31 stops to save energy and reduce noise.

[0057] The liquid level detection module can be a contact-type liquid level detection module (e.g., a differential pressure liquid level sensor, a float-type liquid level sensor, etc.), or a non-contact liquid level detection module (e.g., an ultrasonic liquid level sensor, a laser liquid level sensor, etc.) to detect liquid level. For example, the liquid level detection module includes a float and a Hall effect sensor. The float is enclosed in a magnet. An upwardly extending mounting post is provided within the water collection chamber 212. The float is mounted on the mounting post so that it can float up and down. A limiter is provided at the top of the mounting post to limit the maximum lift of the float. The mounting post is hollow inside, and a Hall effect sensor is provided at the bottom. The Hall effect sensor is communicatively connected to the booster pump 31. When the water collection chamber 212 is at a low liquid level, the float is at its lowest point under the action of gravity. The magnet in the float reacts with the Hall effect sensor, and the booster pump 31 is turned off, stopping atomization. When the liquid level within the water collection chamber 212 rises, the float rises under the action of the buoyancy of the water. When the float rises beyond the sensing range of the Hall effect sensor, the booster pump 31 is activated, and atomization begins.

[0058] In one embodiment, the water collecting chamber 212 is provided with a drain outlet 2121, and the drain outlet 2121 has an open state and a blocked state. When it is necessary to discharge the condensed water by atomization, the drain outlet 2121 is in a blocked state. When it is necessary to discharge the condensed water directly, the drain outlet 2121 can be switched to an open state so that the condensed water in the water collecting chamber 212 is discharged from the drain outlet 2121. In this way, when the condensed water in the water collecting chamber 212 is not completely atomized and remains, the condensed water in the water collecting chamber 212 can be discharged by opening the drain outlet 2121 to avoid corrosion to the smoke hood 21. For example, a drain valve can be provided at the drain outlet 2121, and the drain outlet 2121 can be opened or blocked by the drain valve. The drain valve can be a mechanical valve or a solenoid valve.

[0059] like Figure 1 、 Figure 3 and Figure 5 As shown, in some embodiments, the water collecting chamber 212 includes a water collecting chamber 212a and a sedimentation chamber 212b, the side wall of the water collecting chamber 212a is provided with a water outlet 2122 connected to the water inlet end of the boosting pump 31, the sedimentation chamber 212b is arranged at the bottom of the water collecting chamber 212a, and the bottom wall of the water collecting chamber 212a is provided with a sedimentation outlet 2123 connected to the sedimentation chamber 212b, and the lowest position of the water outlet 2122 is set higher than the sedimentation outlet 2123.

[0060] In this embodiment, the water collecting chamber 212 includes a water collecting chamber 212a and a sedimentation chamber 212b. The sedimentation chamber 212b is arranged at the bottom of the water collecting chamber 212a and is connected to the water collecting chamber 212a through the sedimentation port 2123. In this way, large particles of impurities in the condensed water in the water collecting chamber 212a can naturally settle under the action of gravity and fall into the sedimentation chamber 212b through the sedimentation port 2123, thereby separating impurities from the condensed water in the water collecting chamber 212a; the water inlet end of the booster pump 31 is connected to the water collecting chamber 212a through the water outlet 2122, and the lowest position of the water outlet 2122 is set higher than the sedimentation port 2123. In this way, the large particles of impurities in the sedimentation chamber 212b can be effectively avoided from being drawn into the booster pump 31, causing the booster pump 31 to be blocked and damaged, thereby extending the service life of the booster pump 31 and ensuring that the atomization device 30 can perform atomization operations normally.

[0061] Optionally, a drain port 2121 is provided at the bottom of the settling chamber 212b. The drain port 2121 has an open state and a blocked state. When the condensed water needs to be discharged by atomization, the drain port 2121 is in the blocked state. When the condensed water needs to be discharged directly, the drain port 2121 can be switched to the open state, so that the condensed water in the water collection chamber 212 is discharged through the drain port 2121, and impurities in the settling chamber 212b can also be discharged through the drain port 2121, thereby preventing impurities in the settling chamber 212b from overflowing into the water collection chamber 212a, causing the water level of the condensed water to rise and flow back into the interior of the device body 10.

[0062] like Figure 5 and Figure 6 As shown, in one embodiment, a partition 23 is provided in the smoke collection hood 21, and the partition 23 divides the smoke collection chamber 211 into a first cavity 211a and a second cavity 211b. The first cavity 211a is located on the side of the second cavity 211b close to the equipment body 10, and the water collection chamber 212 is located below the first cavity 211a. The top of the water collection chamber 212 is respectively connected to the first cavity 211a and the second cavity 211b, the smoke exhaust pipe 22 is connected to the top of the second cavity 211b, and the spray end of the atomizing nozzle 32 is connected to the second cavity 211b.

[0063] In this embodiment, a partition 23 extending from top to bottom is provided in the smoke collecting hood 21. The partition 23 divides the smoke collecting chamber 211 into a first cavity 211a and a second cavity 211b arranged horizontally. The first cavity 211a is located on the side of the second cavity 211b close to the device body 10, that is, the first cavity 211a is located upstream in the direction of smoke flow, and the second cavity 211b is located downstream in the direction of smoke flow. The water collecting chamber 212 is located below the first cavity 211a, and the smoke exhaust pipe 22 is located above the second cavity 211b. The flue gas generated by the operation of the equipment main body 10 can pass through the first cavity 211a and the second cavity 211b in sequence, and then be discharged from the exhaust pipe 22; at the same time, the condensed water generated by the operation of the equipment main body 10 is collected by the first cavity 211a and can drip into the water collecting cavity 212 under the action of gravity. The booster pump 31 pumps the condensed water in the water collecting cavity 212 to the atomizing nozzle 32, and sprays the atomized condensed water into the second cavity 211b through the atomizing nozzle 32, so that the atomized condensed water can continue to flow upward with the flue gas to the exhaust pipe 22 for discharge.

[0064] like Figure 5 and Figure 6As shown, in one embodiment, a partition 23 is provided in the smoke collecting hood 21, and the partition 23 divides the smoke collecting chamber 211 into a first cavity 211a and a second cavity 211b. The first cavity 211a is connected to the second cavity 211b, and the first cavity 211a is located upstream in the direction of smoke flow, and the second cavity 211b is located downstream in the direction of smoke flow. The atomizing nozzle 32 is located directly below the second cavity 211b, and the upward projection of the atomizing nozzle 32 does not fall into the area where the first cavity 211a is located.

[0065] In this embodiment, the smoke generated by the operation of the device body 10 can pass through the first cavity 211a and the second cavity 211b in sequence, and then be discharged through the smoke exhaust pipe 22. The atomizing nozzle 32 is located directly below the second cavity 211b, and the upward projection of the atomizing nozzle 32 does not fall into the area where the first cavity 211a is located. In this way, the atomized condensed water sprayed by the atomizing nozzle 32 can all enter the second cavity 211b and be quickly discharged along with the smoke, preventing the atomized condensed water sprayed by the atomizing nozzle 32 from entering the first cavity 211a and increasing the resistance to the flow of smoke from the first cavity 211a to the second cavity 211b.

[0066] In the prior art, some water heaters have an atomizing module, the atomizing port of which is located in the flue, far away from the upstream flue. As a result, the atomized condensed water sprayed from the atomizing port of the atomizing module cannot be mixed with the flue gas from the upstream flue in time, affecting the atomization effect and the discharge efficiency of the atomized condensed water.

[0067] like Figure 5 and Figure 6 As shown, in one embodiment, a partition 23 is provided in the smoke collecting hood 21, and the partition 23 divides the smoke collecting chamber 211 into a first cavity 211a and a second cavity 211b. A smoke outlet 224 is formed between the bottom end of the partition 23 and the bottom plate of the smoke collecting hood 21, and the first cavity 211a is connected to the second cavity 211b through the smoke outlet 224. The atomizing nozzle 32 is located downstream of the smoke outlet 224, and the highest position of the atomizing nozzle 32 is lower than the bottom end of the partition 23.

[0068] In this embodiment, a partition 23 extending from top to bottom is provided within the smoke hood 21. The partition 23 divides the smoke collection chamber 211 into a first cavity 211a and a second cavity 211b arranged transversely. The first cavity 211a is located upstream of the smoke flow direction, and the second cavity 211b is located downstream of the smoke flow direction. The first cavity 211a is connected to the second cavity 211b through the smoke outlet 224, and the atomizing nozzle 32 faces the second cavity 211b. By locating the atomizing nozzle 32 downstream of the smoke outlet 224 and with the highest position of the atomizing nozzle 32 lower than the bottom end of the partition 23, the atomized condensed water ejected through the atomizing nozzle 32 can immediately encounter the airflow from the smoke outlet 224 upon exiting, and is then directly carried away along with the smoke, which is conducive to improving the atomization effect and the discharge efficiency of the atomized condensed water.

[0069] like Figure 5 and Figure 6 As shown, in one embodiment, the smoke collecting chamber 211 includes a first cavity 211a and a second cavity 211b, the first cavity 211a is connected to the second cavity 211b via a smoke outlet 224, the device body 10 includes a control system and a fan 11 electrically connected to the control system, the fan 11 is used to drive the smoke generated by the operation of the device body 10 to flow into the smoke collecting chamber 211, the fan 11 is also used to identify whether the smoke outlet 224 is blocked according to the wind pressure, and send a fault signal to the control system when the smoke outlet 224 is blocked.

[0070] In this embodiment, a partition 23 extending from top to bottom is provided in the smoke hood 21. The partition 23 divides the smoke collecting chamber 211 into a first cavity 211a and a second cavity 211b arranged horizontally. A smoke outlet 224 is formed between the bottom end of the partition 23 and the bottom plate of the smoke hood 21. The first cavity 211a is located upstream in the direction of smoke flow, and the second cavity 211b is located downstream in the direction of smoke flow. The smoke generated by the operation of the equipment main body 10 can pass through the first cavity 211a and the second cavity 211b in sequence, and then be discharged by the smoke exhaust pipe 22. When the atomization module 30 fails or atomization is not timely, the water level of the condensed water in the water collecting chamber 212 will continue to rise. When the water level rises and overflows the smoke outlet 224, the smoke outlet 224 will be blocked (that is, a water seal will be formed). At this time, the flue gas in the first cavity 211a will not be able to flow from the smoke outlet 224 to the second cavity 211b, causing the air duct to be blocked, and then the wind pressure of the equipment body 10 to increase. The fan 11 recognizes that the smoke outlet 224 is blocked based on the wind pressure, and then determines it as an atomization failure, and feeds back the atomization failure signal to the control system. The control system controls the entire machine to stop working to prevent the entire machine from continuing to run to produce condensed water, which will cause the water level to continue to rise and flow back into the fan 11, burner 12, heat exchanger 13 and other components of the equipment body 10, thereby avoiding failure of the entire machine.

[0071] Based on the above embodiment, the device body 10 optionally includes a condensing heat exchanger 13b, which is disposed within the first cavity 211a. Thus, condensed water dripping from the condensing heat exchanger 13b can flow directly into the water collecting chamber 212 under the action of gravity. The condensing heat exchanger 13b is located within the first cavity 211a and is separated from the second cavity 211b by the partition 23. This allows for unobstructed flow within the second cavity 211b, reducing resistance to the discharge of atomized condensed water with the flue gas. It also prevents the atomized condensed water from encountering obstruction from the condensing heat exchanger 13b during discharge and recondensing into condensed water. This improves the atomization effect of the condensed water and further enhances the efficiency of condensed water discharge.

[0072] Hereinafter, several implementations of the device body 10 of the gas water heater 100 will be introduced in combination with the above embodiments.

[0073] like Figure 1 and Figure 2 As shown, in one embodiment, the equipment body 10 includes a fan 11, a burner 12 and a heat exchanger 13 arranged from top to bottom, and the smoke collection hood 21 is arranged at the bottom of the heat exchanger 13. The fan 11 is used to drive the airflow through the burner 12 and the heat exchanger 13 into the smoke collection chamber 211.

[0074] In this embodiment, the gas water heater 100 specifically relates to a forced-drum reverse-firing gas water heater 100. The device body 10 includes a fan 11, a burner 12, and a heat exchanger 13, arranged from top to bottom. The air outlet of the fan 11 is connected to the air inlet of the burner 12. The water inlet end of the heat exchanger 13 is used to connect to the water inlet pipe, and the water outlet end of the heat exchanger 13 is used to connect to the water outlet pipe. In addition, a gas proportional valve may be provided at the top of the burner 12, and a combustion chamber housing may be provided between the burner 12 and the heat exchanger 13. The water collection and smoke exhaust device includes a smoke hood 21 and a smoke exhaust pipe 22. The smoke hood 21 is provided at the bottom of the heat exchanger 13, with the top of the smoke hood 21 open toward the heat exchanger 13. The smoke exhaust pipe 22 may extend upward from the top of the smoke hood 21, and the smoke exhaust pipe 22 is arranged side by side with the device body 10 in the horizontal direction.

[0075] When the gas water heater 100 is operating, the fan 11 draws outside air into the burner 12, providing the secondary air required for combustion and ensuring more complete combustion. Driven by the fan 11, the high-temperature flue gas generated by the burner 12 flows downward to the heat exchanger 13, where it exchanges heat with the heat exchanger 13, heating the water within. Driven by the fan 11, the flue gas continues to flow downward into the smoke collection chamber 211 of the smoke hood 21, where it is then transported from the smoke collection chamber 211 to the exhaust pipe 22 for discharge. During this process, condensed water generated on the surface of the heat exchanger 13 drips downward under the action of gravity into the smoke collection chamber 212, where it is stored. Because the flue gas flow and the condensed water dripping direction align, the condensed water drips more quickly from the surface of the heat exchanger 13, preventing a large amount of condensed water from adhering to the surface. This improves heat exchange efficiency and achieves first-class energy efficiency. When a certain amount of condensed water is stored in the water collecting chamber 212, the booster pump 31 can be started, and the condensed water in the water collecting chamber 212 can be pumped to the atomizing nozzle 32 through the booster pump 31. The condensed water is atomized and sprayed into the smoke collecting chamber 211 through the atomizing nozzle 32, and then can enter the smoke exhaust pipe 22 and be discharged together with the high-speed flowing smoke.

[0076] like Figure 3 and Figure 4 As shown, in another embodiment, the equipment main body 10 includes a fan 11, a burner 12 and a main heat exchanger 13a arranged from bottom to top, and the smoke collection hood 21 is arranged on the top of the main heat exchanger 13a. The equipment main body 10 also includes a condensing heat exchanger 13b arranged in the smoke collection chamber 211, and the water outlet end of the condensing heat exchanger 13b is connected to the water inlet end of the main heat exchanger 13a. The fan 11 is used to drive the airflow through the burner 12 and the main heat exchanger 13a to flow into the smoke collection chamber 211.

[0077] In this embodiment, the gas water heater 100 is a forced-drum normal-firing gas water heater 100. The device body 10 includes a fan 11, a burner 12, and a main heat exchanger 13a, arranged from bottom to top. The air outlet of the fan 11 is connected to the air inlet of the burner 12. A smoke hood 21 is provided at the top of the main heat exchanger 13a. The bottom of the smoke hood 21 is provided with a collection port connected to the heat exchanger 13. A smoke collection chamber 211 and a water collection chamber 212 are formed in the smoke hood 21. The water collection chamber 212 is located at the bottom of the smoke collection chamber 211 and is arranged side by side with the main heat exchanger 13a. A condensing heat exchanger 13b is provided in the smoke collection chamber 211 on one side near the collection port. Optionally, a guide plate is provided at the bottom of the smoke collection chamber 211 corresponding to the condensing heat exchanger 13b. The guide plate is tilted downward toward the side of the water collection chamber 212, allowing condensed water dripping from the condensing heat exchanger 13b to flow along the guide plate into the water collection chamber 212. The water inlet of the condensing heat exchanger 13b is connected to the water inlet pipe, and the water outlet of the condensing heat exchanger 13b is connected to the water inlet of the main heat exchanger 13a. The water outlet of the main heat exchanger 13a is connected to the water outlet pipe. In addition, a gas proportional valve may be provided at the bottom of the burner 12, and a combustion chamber housing may be provided between the burner 12 and the main heat exchanger 13a.

[0078] When the gas water heater 100 is operating, the fan 11 draws external air into the burner 12, providing the secondary air required for combustion, ensuring more efficient combustion. Under the action of the fan 11, the high-temperature flue gas generated by the burner 12 flows upward from the bottom to the main heat exchanger 13a. After undergoing a primary heat exchange with the main heat exchanger 13a, the high-temperature flue gas continues upward to the smoke collection chamber 211 for a secondary heat exchange with the condensing heat exchanger 13b. After undergoing secondary heat exchange, the flue gas enters the exhaust pipe 22 for discharge. This fully utilizes the latent heat of the flue gas, improving the overall energy efficiency of the unit. During this process, external cold water is first delivered to the condensing heat exchanger 13b via the water inlet pipe for preheating. From there, it is delivered to the main heat exchanger 13a for further heating, improving the efficiency of hot water output. Condensate generated on the surface of the condensing heat exchanger 13b drips into the smoke collection chamber 211 due to gravity, then flows to the water collection chamber 212 for storage. When a certain amount of condensed water is stored in the water collecting chamber 212, the booster pump 31 can be started, and the condensed water in the water collecting chamber 212 can be pumped to the atomizing nozzle 32 through the booster pump 31. The condensed water is atomized and sprayed into the smoke collecting chamber 211 through the atomizing nozzle 32, and then can enter the smoke exhaust pipe 22 and be discharged together with the high-speed flowing smoke.

[0079] like Figure 5 and Figure 6As shown, in another embodiment, the equipment main body 10 includes a fan 11, a main heat exchanger 13a and a burner 12 arranged from top to bottom, the smoke collecting hood 21 is arranged on one side of the fan 11, and the air outlet of the fan 11 is connected to the smoke collecting chamber 211. The equipment main body 10 also includes a condensing heat exchanger 13b arranged in the smoke collecting chamber 211, and the water outlet end of the condensing heat exchanger 13b is connected to the water inlet end of the main heat exchanger 13a. The fan 11 is used to drive the airflow through the burner 12, the main heat exchanger 13a and the fan 11 to flow into the smoke collecting chamber 211.

[0080] In this embodiment, the gas water heater 100 specifically relates to a forced-draft, normal-burning gas water heater 100. The device body 10 includes a fan 11, a main heat exchanger 13a, and a burner 12, arranged from top to bottom. The air inlet of the fan 11 is connected to the main heat exchanger 13a, and the air outlet of the fan 11 is connected to the smoke collection chamber 211 of the smoke hood 21. The bottom of the smoke collection chamber 211 is connected to the water collection chamber 212, and the top of the smoke collection chamber 211 is connected to the smoke exhaust pipe 22. The condensing heat exchanger 13b is disposed within the smoke collection chamber 211 and above the water collection chamber 212. The water inlet of the condensing heat exchanger 13b is connected to the water inlet pipe, the water outlet of the condensing heat exchanger 13b is connected to the water inlet of the main heat exchanger 13a, and the water outlet of the main heat exchanger 13a is connected to the water outlet pipe. In addition, a gas proportional valve may be provided at the bottom of the burner 12, and a combustion chamber box may be provided between the burner 12 and the main heat exchanger 13a.

[0081] When the gas water heater 100 is operating, the fan 11 drives the airflow from bottom to top, so that the high-temperature flue gas generated by the burner 12 passes through the main heat exchanger 13a and the fan 11 from bottom to top and flows into the smoke collecting chamber 211 of the smoke collecting hood 21. The high-temperature flue gas can first undergo a heat exchange with the main heat exchanger 13a, and then undergo a secondary heat exchange with the condensing heat exchanger 13b in the smoke collecting chamber 211. The flue gas after the secondary heat exchange can enter the exhaust pipe 22 for discharge. In this way, the latent heat of the flue gas can be fully utilized, thereby improving the energy efficiency of the entire machine. During this process, external cold water can be first transported to the condensing heat exchanger 13b through the water inlet pipe for preheating, and then transported from the condensing heat exchanger 13b to the main heat exchanger 13a for further heating to improve the efficiency of hot water output. The condensed water generated on the surface of the condensing heat exchanger 13b drips into the water collecting chamber 212 under the action of gravity for storage. When a certain amount of condensed water is stored in the water collecting chamber 212, the booster pump 31 can be started, and the condensed water in the water collecting chamber 212 can be pumped to the atomizing nozzle 32 through the booster pump 31. The condensed water is atomized and sprayed into the smoke collecting chamber 211 through the atomizing nozzle 32, and then can enter the smoke exhaust pipe 22 and be discharged together with the high-speed flowing smoke.

[0082] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gas water heater, characterized in that: include: Equipment body; A water collection and smoke exhaust device, comprising a smoke collection hood and a smoke exhaust pipe connected to each other, wherein the smoke collection hood is connected to the device body and is used to collect smoke and condensed water generated by the operation of the device body, and the smoke collection hood has a smoke collection cavity connected to the device body and a water collection cavity connected to the smoke collection cavity; The smoke exhaust pipe has a smoke inlet connected to the smoke collecting chamber, and a smoke exhaust port connected to the smoke inlet; as well as The atomizing device includes a booster pump and an atomizing nozzle. The water inlet end of the booster pump is connected to the water collecting chamber, the water outlet end of the booster pump is connected to the atomizing nozzle, and the atomizing end of the atomizing nozzle is connected to the smoke collecting chamber and faces the smoke inlet.

2. The gas water heater according to claim 1, characterized in that: The water collecting chamber is located below the smoke collecting chamber and communicates with the bottom of the smoke collecting chamber. The smoke exhaust pipe is located above the smoke collecting chamber and communicates with the top of the smoke collecting chamber.

3. The gas water heater according to claim 2, characterized in that: The smoke exhaust pipe extends upward from the top of the smoke collecting hood, the smoke inlet is provided at the bottom end of the smoke exhaust pipe, the smoke exhaust port is provided at the top end of the smoke exhaust pipe, and the spray direction of the atomizing nozzle is consistent with the extension direction of the smoke exhaust pipe.

4. The gas water heater according to claim 2, characterized in that: The water collecting chamber and the smoke exhaust pipe are arranged staggered in the transverse direction, a concave cavity is formed on the outer side of the bottom of the smoke collecting hood, the concave cavity and the water collecting chamber are arranged side by side in the transverse direction, the smoke exhaust pipe is correspondingly arranged above the concave cavity, and at least part of the atomization device is accommodated in the concave cavity.

5. The gas water heater according to claim 1, characterized in that: The atomizing device further comprises a delivery pipeline, the delivery pipeline connects the water collecting chamber with the atomizing nozzle, and the booster pump is serially connected to the delivery pipeline; And / or, a filter module is provided between the water inlet end of the booster pump and the water collecting chamber, and the filter module is used to filter the condensed water.

6. The gas water heater according to claim 1, characterized in that: The water collection and smoke exhaust device further includes a liquid level detection module provided on the smoke collection hood, the liquid level detection module being communicatively connected to the booster pump, the liquid level detection module being used to detect the liquid level in the water collection chamber, the booster pump being used to start operating when the liquid level in the water collection chamber is higher than a first preset liquid level, and to stop operating when the liquid level in the water collection chamber is lower than a second preset liquid level, wherein the first preset liquid level is higher than the second preset liquid level; And / or, the water collecting chamber is provided with a drain outlet, and the drain outlet has an open state and a blocked state.

7. The gas water heater according to claim 1, characterized in that: The water collecting chamber includes a water collecting chamber and a sedimentation chamber. The side wall of the water collecting chamber is provided with a water outlet connected to the water inlet end of the booster pump. The sedimentation chamber is arranged at the bottom of the water collecting chamber. The bottom wall of the water collecting chamber is provided with a sedimentation outlet connected to the sedimentation chamber. The lowest position of the water outlet is set higher than the sedimentation outlet.

8. The gas water heater according to claim 1, characterized in that: A partition is provided in the smoke collection hood, which divides the smoke collection chamber into a first cavity and a second cavity. The first cavity is located on a side of the second cavity close to the device body. The water collection chamber is located below the first cavity. The top of the water collection chamber is connected to the first cavity and the second cavity respectively. The smoke exhaust pipe is connected to the top of the second cavity, and the spray end of the atomizing nozzle is connected to the second cavity. And / or, a partition is provided in the smoke collection hood, which divides the smoke collection chamber into a first cavity and a second cavity, the first cavity is connected to the second cavity, the first cavity is located upstream of the smoke flow direction, the second cavity is located downstream of the smoke flow direction, the atomizing nozzle is located directly below the second cavity, and the upward projection of the atomizing nozzle does not fall into the area where the first cavity is located.

9. The gas water heater according to claim 1, characterized in that: A partition is provided in the smoke collection hood, the partition dividing the smoke collection chamber into a first cavity and a second cavity, a smoke outlet is formed between the bottom end of the partition and the bottom plate of the smoke collection hood, the first cavity is connected to the second cavity through the smoke outlet, the atomizing nozzle is located downstream of the smoke outlet, and the highest position of the atomizing nozzle is lower than the bottom end of the partition; And / or, the smoke collection chamber includes a first cavity and a second cavity, the first cavity is connected to the second cavity via a smoke outlet, the equipment main body includes a control system and a fan electrically connected to the control system, the fan is used to drive the smoke generated by the operation of the equipment main body to flow into the smoke collection chamber, the fan is also used to identify whether the smoke outlet is blocked based on the wind pressure, and send a fault signal to the control system when the smoke outlet is blocked.

10. The gas water heater according to any one of claims 1 to 9, characterized in that: The main body of the device includes a fan, a burner and a heat exchanger arranged from top to bottom, the smoke collection hood is arranged at the bottom of the heat exchanger, and the fan is used to drive the air flow through the burner and the heat exchanger into the smoke collection chamber; Alternatively, the device body includes a fan, a burner, and a main heat exchanger arranged from bottom to top, the smoke collection hood is arranged on the top of the main heat exchanger, the device body also includes a condensing heat exchanger arranged in the smoke collection chamber, the water outlet end of the condensing heat exchanger is connected to the water inlet end of the main heat exchanger, and the fan is used to drive the airflow through the burner and the main heat exchanger into the smoke collection chamber; Alternatively, the equipment body includes a fan, a main heat exchanger and a burner arranged from top to bottom, the smoke collection hood is arranged on one side of the fan, the air outlet of the fan is connected to the smoke collection chamber, the equipment body also includes a condensing heat exchanger arranged in the smoke collection chamber, the water outlet end of the condensing heat exchanger is connected to the water inlet end of the main heat exchanger, and the fan is used to drive the airflow through the burner, the main heat exchanger and the fan into the smoke collection chamber.

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