Condensed water atomizing device and condensing gas water heater

Abstract

This invention belongs to the field of water heater technology, and discloses a condensate atomizing device and a condensing gas water heater. The second mist exhaust pipe can rise and fall with the liquid level in the condenser shell. When the condensate liquid level in the condenser shell rises, the second mist exhaust pipe rises with the condensate liquid level, so that the height of the air inlet is raised synchronously. This prevents the condensate liquid level from exceeding the air inlet, and prevents hot flue gas from blowing directly onto the root of the water mist in the second mist exhaust channel when entering through the air inlet, thus reducing the misting effect. At the same time, the air inlet moves between the mist outlet and the mist inlet, and the air inlet is always located above the condensate liquid level. The opening area of ​​the air inlet for flue gas circulation does not decrease as the condensate liquid level rises. Therefore, the flue gas pressure at the air inlet is not affected by the condensate liquid level, preventing the flue gas from increasing the downward pressure on the root of the water mist when entering through the air inlet, reducing the impact on the misting pressure of the atomizing unit, thereby increasing the misting amount and increasing the discharge of condensate atomized water mist.

Description

Technical Field

[0001] This invention relates to the field of water heater technology, and in particular to a condensate atomizing device and a condensing gas water heater. Background Technology

[0002] The working principle of a condensing gas water heater is to send the flue gas, which has been cooled by the main heat exchanger, into the condensing shell of the condensing heat exchange device. Before the cold water is sent into the main heat exchanger, it is first sent into the heat exchange pipe of the condensing heat exchange device so that the flue gas in the condensing shell can preheat the cold water.

[0003] During this process, water vapor in the flue gas is condensed into condensate, which continuously accumulates at the bottom of the condenser shell. One commonly used method for condensate treatment is to install an atomizing device at the bottom of the condenser shell. The atomizing device includes an atomizing shell and an atomizing unit located at the bottom of the atomizing shell. The atomizing shell above the atomizing unit forms a mist outlet channel. A mist exhaust pipe is installed at the top of the condenser shell. The mist inlets at the lower end of the mist exhaust pipe are spaced directly above the mist outlets at the top of the mist outlet channel. The gap between the mist inlets and the mist outlets forms a flue gas inlet. After the atomizing device atomizes the condensate into water mist, the water mist flows out through the mist outlet channel and directly enters the upper mist exhaust pipe. The hot flue gas inside the condenser shell enters the mist exhaust pipe through the flue gas inlet, driving the water mist out of the mist exhaust pipe.

[0004] In practical applications, it was found that as the condensate level in the condenser shell gradually rises and exceeds the mist outlet, the opening of the flue gas inlet gradually decreases. The root of the water mist also gradually rises to the flue gas inlet along with the condensate level, causing the hot flue gas to blow away the water mist from the root, reducing the misting effect and thus reducing the amount of mist. At the same time, as the opening of the flue gas inlet gradually decreases, the flue gas pressure at the inlet increases, which leads to an increase in the pressure at the root of the water mist, thus reducing the amount of mist. Both of these factors reduce the discharge of condensate water mist, resulting in poor mist removal effect. Summary of the Invention

[0005] One of the technical problems solved by this invention is to provide a condensate atomizing device that can increase the discharge of condensate atomized water mist and improve the mist discharge effect.

[0006] The second technical problem solved by this invention is to provide a condensing gas water heater that can increase the discharge of condensate mist and improve the mist removal effect.

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

[0008] A condenser housing, wherein the condenser housing is provided with a smoke inlet;

[0009] An atomizing housing has a mist outlet at its upper end and a water inlet at its lower end, and the mist outlet and the water inlet are respectively connected to the condenser housing;

[0010] An atomizing unit is located at the bottom of the atomizing housing;

[0011] The first mist exhaust pipe has its upper end connected to the outside atmosphere and its lower end forming a mist inlet located inside the condensation shell, with the mist inlet located above the mist outlet.

[0012] The second mist exhaust pipe has an air inlet on its side wall. The second mist exhaust pipe can rise and fall with the condensate level in the condenser housing so that the air inlet moves between the mist outlet and the mist inlet. The mist outlet is connected to the mist inlet through the second mist exhaust pipe. The smoke inlet is connected to the mist inlet through the air inlet.

[0013] The condensate atomizing device of the present invention has the following advantages compared with the prior art:

[0014] The condensate in the condenser housing enters the atomizing housing through the water inlet, and is atomized by the atomizing unit at the bottom of the atomizing housing to form water mist. The water mist enters the second mist exhaust pipe through the mist outlet. Hot flue gas enters from the flue gas inlet and enters the second mist exhaust pipe through the air inlet. The hot flue gas in the second mist exhaust pipe carries the water mist into the first mist exhaust pipe and is discharged into the outside atmosphere.

[0015] As the condensate level rises within the condenser housing, the second mist exhaust pipe rises accordingly, causing the air inlet height to rise synchronously. This prevents the condensate level from exceeding the air inlet level, ensuring the root of the water mist remains below the air inlet. This prevents hot flue gas from directly blowing onto the root of the water mist within the second mist exhaust pipe when entering through the air inlet, thus reducing the misting effect. Simultaneously, the air inlet moves between the mist outlet and the mist inlet, always remaining above the condensate level. The opening area of ​​the air inlet for flue gas flow does not decrease with the rise in condensate level. Therefore, the flue gas pressure at the air inlet is unaffected by the condensate level, preventing a reduction in the opening area for flue gas flow that would increase the downward pressure on the root of the water mist when flue gas enters through the air inlet. This reduces the impact on the misting pressure of the atomizing unit, thereby increasing the mist volume, increasing the discharge of condensate atomized water mist, and improving the mist exhaust effect.

[0016] In one embodiment, the upper end of the second mist exhaust pipe is movably connected to the lower end of the first mist exhaust pipe in the vertical direction, so that the air inlet moves between the mist outlet and the mist inlet.

[0017] In one embodiment, the condensate atomizing device further includes:

[0018] A buoyancy component is disposed within the condenser housing and connected to the second mist exhaust pipe; along the vertical direction, the lower end face of the buoyancy component is lower than the lower end face of the second mist exhaust pipe.

[0019] In one embodiment, the second mist exhaust pipe and the buoyancy member are connected in the vertical direction, and the buoyancy member is provided with a mist passage that runs through the vertical direction. The mist outlet is connected to the second mist exhaust pipe through the mist passage.

[0020] In one embodiment, the condensate atomizing device further includes a connector, one end of which is provided with a limiting portion;

[0021] The limiting part abuts against the buoyancy member, and the other end of the connector passes through the buoyancy member and is engaged with the second mist exhaust pipe; or, the limiting part abuts against the second mist exhaust pipe, and the other end of the connector passes through the second mist exhaust pipe and is engaged with the buoyancy member.

[0022] In one embodiment, the air inlets are provided in a plurality of manner, and the plurality of air inlets are arranged circumferentially around the second mist exhaust pipe.

[0023] In one embodiment, one of the second mist exhaust pipe and the first mist exhaust pipe is rotatably connected to a rolling element, and the other is provided with a guide groove. The rolling element and the guide groove are rotatably connected in the up-down direction.

[0024] In one embodiment, the second or first mist exhaust pipe with the guide groove is provided with an upper limit member and a lower limit member arranged opposite to each other in the vertical direction, and the upper limit member is located above the lower limit member.

[0025] The rolling element is confined between the upper limit element and the lower limit element in the vertical direction.

[0026] In one embodiment, the outer wall of the second mist exhaust pipe with the air inlet includes a first guide surface. The first guide surface is not higher than the air inlet and is connected to the inner wall of the air inlet. Along the direction from bottom to top, the first guide surface gradually approaches the central axis of the second mist exhaust pipe.

[0027] And / or, the inner wall of the air inlet is formed with a second guide surface, which gradually approaches the central axis of the second mist exhaust pipe in the direction from bottom to top.

[0028] The second technical problem mentioned above is solved by the following technical solution:

[0029] A condensing gas water heater, including the condensate atomizing device described in any of the above embodiments.

[0030] Compared with the prior art, the condensing gas water heater of the present invention has the following advantages:

[0031] The condensing gas water heater provided by the present invention includes a condensate atomizing device. Condensate in the condensing shell enters the atomizing shell through the water inlet and is atomized by the atomizing unit at the bottom of the atomizing shell to form water mist. The water mist enters the second mist exhaust pipe through the mist outlet. Hot flue gas enters the second mist exhaust pipe through the air inlet and the hot flue gas in the second mist exhaust pipe carries the water mist into the first mist exhaust pipe and is discharged into the outside atmosphere.

[0032] As the condensate level rises within the condenser housing, the second mist exhaust pipe rises accordingly, causing the air inlet height to increase synchronously. This prevents the condensate level from exceeding the air inlet level, ensuring the root of the water mist remains below the air inlet. This prevents hot flue gas from directly hitting the root of the water mist when entering through the air inlet, thus reducing the misting effect. Simultaneously, the air inlet moves between the mist outlet and the mist inlet, always remaining above the condensate level. The opening area of ​​the air inlet for flue gas flow does not decrease with the rise in condensate level. Therefore, the flue gas pressure at the air inlet is unaffected by the condensate level, preventing a reduction in the opening area for flue gas flow that would increase the downward pressure on the root of the water mist when flue gas enters through the air inlet. This reduces the impact on the misting pressure of the atomizing unit, thereby increasing the mist volume, increasing the discharge of condensate-atomized water mist, and improving the mist exhaust effect. Attached Figure Description

[0033] Figure 1 This is a first partial cross-sectional view of the condensate atomizing device provided in an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram showing the disassembled second mist exhaust pipe and buoyancy component provided in an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram showing the connection between the second mist exhaust pipe and the buoyancy component provided in an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram showing the connection between the second mist exhaust pipe and the first mist exhaust pipe provided in an embodiment of the present invention;

[0037] Figure 5 This is a cross-sectional view of the condensate atomizing device provided in an embodiment of the present invention;

[0038] Figure 6 This is a cross-sectional view of the condensate atomizing device provided in an embodiment of the present invention when the rolling element abuts against the lower limit element;

[0039] Figure 7 This is a cross-sectional view of the condensate atomizing device provided in this embodiment of the invention when the rolling element is located between the lower limit element and the upper limit element;

[0040] Figure 8 This is a cross-sectional view of the condensate atomizing device provided in an embodiment of the present invention when the rolling element abuts against the upper limit element.

[0041] In the picture:

[0042] 11. Condenser shell; 111. Flue gas inlet; 12. Condenser heat exchange tube;

[0043] 21. Atomizing housing; 210. Atomizing outlet; 22. Atomizing unit; 23. Atomizing neutralizing filter element;

[0044] 3. First mist exhaust pipe; 30. Mist inlet; 31. Guide trough;

[0045] 41. Second mist exhaust duct; 411. Air inlet; 411a. First air inlet; 411b. Second air inlet; 411c. Third air inlet; 412. First guide surface; 413. Mounting protrusion; 414. Mounting bracket; 415. Rolling element; 416. Rotating shaft; 42. Buoyancy element; 421. Mist passage; 43. Connecting element; 431. Limiting part; 432. Elastic buckle;

[0046] 5. Smoke exhaust pipe. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0048] In the description of this application, it should be understood that the terms "center", "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0049] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] like Figures 1 to 4 As shown, embodiments of the present invention provide a condensate atomizing device and a condensing gas water heater. The condensing gas water heater includes a condensate atomizing device, a main heat exchanger, a burner for heating the water flowing within the main heat exchanger, a fan for supplying air to the burner, and a gas inlet pipe connected to the gas inlet of the burner. A gas inlet pipe is provided on the gas inlet pipe, and a gas control valve is installed on the gas inlet pipe. A hot water outlet pipe is connected to the hot water outlet of the main heat exchanger, and a cold water inlet pipe is connected to the cold water inlet of the main heat exchanger. Cold water enters the main heat exchanger through the cold water inlet pipe. The gas control valve opens, and gas is sent to the burner through the gas inlet pipe. Simultaneously, the fan operates to send air to the burner. The burner heats the cold water flowing within the heat exchanger to form hot water, which flows out through the hot water outlet pipe. Exemplarily, the gas control valve is a proportional valve used to regulate the gas flow rate.

[0052] The condensate atomizing device includes a condenser shell 11 and a condenser heat exchange tube 12. Both ends of the condenser heat exchange tube 12 extend out of the condenser shell 11. The outlet end of the condenser heat exchange tube 12 is connected to the inlet end of the main heat exchanger, and the outlet end of the condenser heat exchange tube 12 is connected to a cold water inlet pipe. A flue gas inlet 111 is provided on the condenser shell 11, and the air outlet of the fan is connected to the flue gas inlet. An exhaust pipe is connected to the condenser shell 11. Exemplarily, the condenser heat exchange tube 12 has a coil structure, which absorbs the waste heat in the hot flue gas, improving the heat exchange efficiency between the hot flue gas and the cold water inside the condenser heat exchange tube 12.

[0053] The high-temperature flue gas generated by combustion is cooled by the main heat exchanger and then sent into the condenser shell 11 by a fan. Low-temperature water enters the condenser heat exchange tube 12 through the cold water inlet pipe. The low-temperature water in the condenser heat exchange tube 12 exchanges heat with the hot flue gas in the condenser shell 11, thus preheating the water in the condenser heat exchange tube 12. The heated water in the condenser heat exchange tube 12 then enters the main heat exchanger for further heating. After the flue gas in the condenser shell 11 is cooled, it is discharged into the outside atmosphere through the exhaust pipe. By setting up a condensate atomization device, the heat in the flue gas can be fully utilized, improving the heat exchange efficiency.

[0054] The condensate atomizing device also includes an atomizing shell 21, an atomizing unit 22, and a first mist exhaust pipe 3. The upper end of the atomizing shell 21 has a mist outlet 210, and the lower end of the atomizing shell 21 has a water inlet. The mist outlet 210 and the water inlet are respectively connected to the condensing shell 11. The atomizing unit is located at the bottom of the atomizing shell 21. One end of the first mist exhaust pipe 3 is connected to the outside atmosphere, and the other end has a mist inlet 30 located inside the condensing shell 11. The mist inlet 30 is located above the mist outlet 210.

[0055] The condensate atomizing device also includes a second mist exhaust pipe 41, which can rise and fall with the condensate level in the condensate housing 11 so that the air inlet 411 can move between the mist outlet 210 and the mist inlet 30; the mist outlet 210 is connected to the mist inlet 30 through the second mist exhaust pipe 41, and the side wall of the second mist exhaust pipe 41 is provided with an air inlet 411, and the smoke inlet is connected to the mist inlet 30 through the air inlet 411.

[0056] The condensate in the condenser housing 11 enters the atomizing housing 21 through the water inlet. It is atomized by the atomizing unit 22 at the bottom of the atomizing housing 21 to form water mist. The water mist flows upward through the mist outlet 210 into the second mist exhaust pipe 41. The hot flue gas enters the condenser housing 11 through the flue gas inlet and then enters the second mist exhaust pipe 41 through the air inlet 411. The hot flue gas in the second mist exhaust pipe 41 carries the water mist through the mist inlet 30 into the first mist exhaust pipe 3, and is discharged into the outside atmosphere through the first mist exhaust pipe 3.

[0057] As the condensate level rises within the condensate housing 11, the second mist exhaust pipe 41 rises accordingly, causing the height of the air inlet 411 to rise synchronously. This prevents the condensate level from exceeding the air inlet 411, ensuring that the root of the water mist remains below the air inlet 411. This prevents hot flue gas from directly blowing onto the root of the water mist within the second mist exhaust pipe 41 when it enters through the air inlet 411, thus affecting the misting effect. Simultaneously, the air inlet 411 moves between the mist outlet 210 and the mist inlet 30. 411 is always positioned above the condensate level. The opening area of ​​the air inlet 411 for flue gas circulation will not decrease due to the rise in the condensate level. This ensures that the flue gas pressure at the air inlet 411 is not affected by the condensate level. It also prevents the reduction in the opening area of ​​the air inlet 411 for flue gas circulation from increasing the downward pressure on the root of the water mist when the flue gas enters through the air inlet 411. This reduces the impact on the mist formation pressure of the atomizing unit 22, thereby increasing the amount of mist formation, increasing the discharge of condensate atomized water mist, and improving the mist removal effect.

[0058] It should be noted that, as Figure 5 As shown, in this embodiment, the upper end of the second mist exhaust pipe 41 is moved in the vertical direction and connected to the lower end of the first mist exhaust pipe 3.

[0059] In other embodiments, the lower end of the second mist exhaust pipe 41 is moved in the vertical direction and connected to the upper end of the atomizing housing 21 so that the air inlet 411 moves between the mist outlet 210 and the mist inlet 30.

[0060] In some embodiments, such as Figure 2 and Figure 3 As shown, the second exhaust pipe 41 is provided with multiple air inlets 411 arranged at intervals along its circumference, so that the flue gas can enter the second exhaust pipe 41 in a timely manner through the air inlets 411 to meet the exhaust requirements, and at the same time, the amount of hot flue gas entering the second exhaust pipe 41 through the air inlets 411 meets the water mist emission requirements.

[0061] In some embodiments, such as Figure 2 and Figure 3 As shown, the second exhaust pipe 41 is a rectangular pipe. The condenser heat exchanger 12 is arranged between the second exhaust pipe 41 and the flue gas inlet 111 along the width direction of the second exhaust pipe 41. The four sides of the second exhaust pipe 41 are provided with air inlets 411. After the hot flue gas enters the condenser shell 11 through the flue gas inlet 111, it first exchanges heat with the cold water in the condenser heat exchanger 12, and then enters the second exhaust pipe 41 through the air inlet 411.

[0062] For example, the second mist exhaust duct 41 has a first sidewall and a second sidewall disposed opposite to each other along its width direction, and two third sidewalls disposed opposite to each other along the length direction of the second mist exhaust duct 41. The first sidewall is located between the second sidewall and the smoke inlet 111 along the width direction of the second mist exhaust duct 41. Each of the four sidewalls of the second mist exhaust duct 41 is provided with an air inlet 411. For ease of description, the air inlet 411 on the first sidewall is referred to as the first air inlet 411a, the air inlet 411 on the second sidewall is referred to as the second air inlet 411b, and the air inlet 411 on the third sidewall is referred to as the third air inlet 411c.

[0063] The four side walls of the second exhaust duct 41 and the inner wall of the condenser shell 11 are spaced apart. When hot flue gas flows into the second exhaust duct 41, a large amount of hot flue gas directly enters the second exhaust duct 41 through the first air inlet 411a. The residual hot flue gas enters the first gap between the third side wall and the inner wall of the condenser shell 11. A small amount of flue gas in the first gap enters the second exhaust duct 41 through the third air inlet 411c. A large amount of flue gas in the first gap enters the second gap between the second side wall and the inner wall of the condenser shell 11. The hot flue gas in the second gap enters the second exhaust duct 41 through the second air inlet 411b. In order to reduce the flow rate difference of the flue gas flowing through the first air inlet 411a and the second air inlet 411b, in some embodiments, the cross-sectional area of ​​the second air inlet 411b is larger than the cross-sectional area of ​​the first air inlet 411a, so as to increase the amount of flue gas entering the second air inlet 411b.

[0064] In some embodiments, such as Figure 2 and Figure 3 As shown, the adjacent side walls of the second exhaust duct 41 are connected by chamfered surfaces. Specifically, the first and third side walls are connected by a first chamfered surface, and the second and third side walls are connected by a second chamfered surface. Both the first and second chamfered surfaces have a guiding function, allowing the hot flue gas between the second exhaust duct 41 and the smoke inlet 111 to enter the first gap under the action of the first chamfered surface, while the hot flue gas in the first gap enters the second gap under the guiding action of the second chamfered surface. Exemplarily, both the first and second chamfered surfaces are arc surfaces. As an alternative, the first and second chamfered surfaces can also be inclined planes.

[0065] In some embodiments, such as Figure 2 and Figure 3 As shown, the condensate atomizing device also includes a buoyancy component 42, which is connected to the second mist exhaust pipe 41.

[0066] When the condensate level inside the condenser housing 11 rises, the buoyancy component 42, under the action of buoyancy, causes the second mist exhaust pipe 41 to rise, thereby raising the height of the air inlet 411. When the condensate level inside the condenser housing 11 falls, the second mist exhaust pipe 41 can descend under its own gravity, thereby lowering the height of the air inlet 411. The second mist exhaust pipe 41 can promptly follow the rise and fall of the condensate level inside the condenser housing 11, exhibiting a fast response.

[0067] It should be noted that the above-mentioned buoyancy component 42 can be made of foam or plastic, etc., and can be selected according to the required buoyancy. No specific limitation is given here.

[0068] As an alternative, a liquid level detection unit and a drive unit can be used to replace the aforementioned buoyancy component 42. The liquid level detection unit is used to detect the condensate level inside the condensate housing 11 in real time, and the drive unit is used to control the raising and lowering of the second mist exhaust pipe 41 in real time based on the condensate level inside the condensate housing 11. It should be noted that the liquid level detection unit can be a liquid level sensor, and the drive unit can be an electric actuator, cylinder, etc. Alternatively, the second mist exhaust pipe 41 can be entirely buoyant.

[0069] In some embodiments, such as Figure 3 and Figure 4 As shown, the lower end face of the buoyancy component 42 is lower than the lower end face of the second mist exhaust pipe 41. This arrangement allows the buoyancy component 42 to promptly detect changes in the condensate level within the condensate housing 11, improving its responsiveness.

[0070] In some embodiments, such as Figure 3 and Figure 4 As shown, the second mist exhaust pipe 41 and the buoyancy member 42 are inserted vertically. The buoyancy member 42 has a mist-passing channel 421 extending vertically, and the mist outlet 210 is connected to the second mist exhaust pipe 41 through the mist-passing channel 421. This arrangement ensures that the buoyancy member 42 does not affect the entry of water mist into the second mist exhaust pipe 41. For example, the upper end of the buoyancy member 42 is inserted into the lower end of the second mist exhaust pipe 41. As an alternative, the buoyancy member 42 can be interference-fitted onto the outside of the lower end of the second mist exhaust pipe 41, or the upper end of the buoyancy member 42 can be interference-fitted into the inside of the lower end of the second mist exhaust pipe 41. As another alternative, multiple buoyancy members 42 can be used, each independently installed at the lower end of the second mist exhaust pipe 41.

[0071] In some embodiments, such as Figure 2 and Figure 3As shown, the condensate atomizing device also includes a connector 43. One end of the connector 43 is provided with a limiting part 431, which abuts against the buoyancy member 42. The other end of the connector 43 passes through the buoyancy member 42 and is snapped into the second mist exhaust pipe 41. The connection between the buoyancy member 42 and the second mist exhaust pipe 41 is simple and easy to assemble and disassemble.

[0072] Specifically, the end of the connector 43 away from the limiting part 431 is provided with a plurality of elastic buckles 432. The plurality of elastic buckles 432 are arranged at intervals along the circumference of the connector 43. The buoyancy member 42 is provided with a first through hole. The inner wall of the second mist exhaust pipe 41 is provided with a mounting protrusion 413. The mounting protrusion 413 is provided with a second through hole. The upper end of the buoyancy member 42 is inserted into the second mist exhaust pipe 41 from the lower end of the second mist exhaust pipe 41 and abuts against the lower surface of the mounting protrusion 413. The elastic buckles 432 pass through the first through hole and the second through hole in sequence and then recover their deformation, so that the buckling surface of the elastic buckle 432 abuts against the upper surface of the mounting protrusion 413 and the limiting part 431 abuts against the lower surface of the buoyancy member 42, so that the buoyancy member 42 and the mounting protrusion 413 are sandwiched between the limiting part 431 and the buckling surface of the elastic buckle 432, thereby connecting the buoyancy member 42 to the second mist exhaust pipe 41.

[0073] As an alternative, the limiting part 431 can be abutted against the second mist exhaust pipe 41, and the other end of the connector 43 can be inserted through the second mist exhaust pipe 41 and then snapped into the buoyancy member 42. Specifically, the elastic buckle 432 passes through the second through hole and the first through hole in sequence and then returns to its original shape, so that the buckling surface of the elastic buckle 432 abuts against the lower surface of the buoyancy member 42, and the limiting part 431 abuts against the upper surface of the mounting protrusion 413.

[0074] In some embodiments, such as Figure 2 and Figure 3 As shown, multiple first through holes are provided, and these holes are arranged at intervals along the circumference of the buoyancy member 42. Multiple mounting protrusions 413 are provided, and each mounting protrusion 413 corresponds to one of the multiple first through holes. Each first through hole is equipped with a connector 43. This arrangement can improve the connection stability between the buoyancy member 42 and the second mist exhaust pipe 41.

[0075] For example, the cross-section of the fogging channel 421 is rectangular, and the cross-section of the second fogging duct 41 is perpendicular to the vertical direction. Each of the four corners of the buoyancy member 42 has a first through hole. Correspondingly, the inner wall of the second fogging duct 41 has mounting protrusions 413 corresponding to the first through holes, and each mounting protrusion 413 has a second through hole.

[0076] It should be noted that the cross-section of the fog passage 421 and the cross-section of the second fog discharge pipe 41 are not limited to rectangles, and the number of the first through holes is not limited to four.

[0077] In some embodiments, the connector 43 is made of foam float or plastic float, etc. When the condensate level in the condensate housing 11 rises, the connector 43 and the buoyancy member 42 jointly provide a force to raise the second mist exhaust pipe 41, so as to ensure that the second mist exhaust pipe 41 can rise and fall in a timely manner with the rise and fall of the liquid level in the condensate housing 11.

[0078] In some embodiments, such as Figures 1 to 4 As shown, one of the second mist exhaust pipe 41 and the first mist exhaust pipe 3 is rotatably connected to a rolling element 415, while the other is provided with a guide groove 31. The rolling element 415 and the guide groove 31 are rolled together in the vertical direction. This arrangement reduces the friction between the second mist exhaust pipe 41 and the first mist exhaust pipe 3, preventing the second mist exhaust pipe 41 from getting stuck and improving the smoothness of the lifting and lowering of the second mist exhaust pipe 41.

[0079] Specifically, the lower end of the first mist exhaust pipe 3 is inserted into the upper end of the second mist exhaust pipe 41. The guide groove 31 is provided on the outer peripheral wall of the first mist exhaust pipe 3. The top of the second mist exhaust pipe 41 is provided with a mounting bracket 414. The rolling element 415 is connected to a rotating shaft 416. The two ends of the rotating shaft 416 are rotatably connected to the mounting bracket 414, so that the rolling element 415 can rotate relative to the mounting bracket 414.

[0080] As an alternative, the guide groove 31 can be disposed on the inner wall of the second mist exhaust pipe 41, and a rotatable roller 415 can be installed at the lower end of the first mist exhaust pipe 3. Alternatively, the upper end of the second mist exhaust pipe 41 can be inserted into the lower end of the first mist exhaust pipe 3. In this case, the roller 415 can be rotatably mounted on the top of the second mist exhaust pipe 41, and the guide groove 31 can be disposed on the inner wall of the first mist exhaust pipe 3. Alternatively, the roller 415 can be rotatably mounted on the lower end of the first mist exhaust pipe 3, and the guide groove 31 can be disposed on the outer wall of the second mist exhaust pipe 41.

[0081] In some embodiments, such as Figures 1 to 4 As shown, the first mist exhaust pipe 3 is equipped with an upper limit stop and a lower limit stop arranged opposite each other in the vertical direction, with the upper limit stop located above the lower limit stop; the rolling element 415 is limited between the upper limit stop and the lower limit stop in the vertical direction. The upper limit stop and the lower limit stop limit the stroke of the rolling element 415.

[0082] For example, the guide groove 31 has an upper inner wall and a lower inner wall that are disposed opposite to each other in the vertical direction, wherein the upper inner wall forms an upper limit member and the lower inner wall forms a lower limit member.

[0083] like Figure 6 As shown, when there is no condensate in the condenser housing 11, or when the condensate level in the condenser housing 11 is lower than the lower surface of the buoyancy member 42, the rolling member 415 abuts against the lower limit member. At this time, the lower end of the buoyancy member 42 is inserted into the mist outlet 210. For ease of description below, when the rolling member 415 abuts against the lower limit member and the condensate level in the condenser housing 11 is flush with the lower surface of the buoyancy member 42, the condensate level in the condenser housing 11 is recorded as the minimum level.

[0084] like Figure 7 As shown, as the condensate level in the condensate housing 11 gradually rises above the minimum level, the buoyancy component 42 gradually rises under the action of buoyancy, and pushes the second mist exhaust pipe 41 to rise.

[0085] As the condensate level in the condenser housing 11 continues to rise, the buoyancy element 42 continues to push the second mist exhaust pipe 41 upward. The buoyancy element 42 will then detach from the atomizing housing 21, at which point the condensate level in the condenser housing 11 will be higher than that in the atomizing housing 21. Figure 8 As shown, the rolling element 415 abuts against the upper limit element, and the second mist exhaust pipe 41 rises to its limit position and cannot rise further. During this process, the air inlet 411 remains higher than the condensate level inside the condenser housing 11.

[0086] In some embodiments, such as Figures 1 to 4 As shown, the outer wall of the second mist exhaust pipe 41 with an air inlet 411 includes a first guide surface 412. The first guide surface 412 is not higher than the air inlet 411. The first guide surface 412 is connected to the inner wall of the air inlet 411. Along the direction from bottom to top, the first guide surface 412 gradually approaches the central axis of the second mist exhaust pipe 41.

[0087] The first guide surface 412 guides the hot flue gas around the second mist exhaust pipe 41 into the air inlet 411, and the hot flue gas flows obliquely upward into the air inlet 411. This prevents the hot flue gas entering the second mist exhaust pipe 41 through the air inlet 411 from directly hitting the root of the water mist in the second mist exhaust pipe 41 and affecting the misting effect. Moreover, because the hot flue gas entering the second mist exhaust pipe 41 through the air inlet 411 flows obliquely upward, it prevents the hot flue gas from exerting a downward force on the water mist when entering the second mist exhaust pipe 41 through the air inlet 411, thus avoiding increasing the misting pressure and reducing the impact of the hot flue gas entering the second mist exhaust pipe 41 on the amount of mist generated by the atomizing unit 22.

[0088] For example, the first guide surface 412 is an inclined plane. As an alternative, the first guide surface 412 can also be an arc surface.

[0089] In some other embodiments, the inner wall of the air inlet 411 may be formed with a second guide surface, which gradually approaches the central axis of the second mist exhaust pipe 41 in an upward direction. The second guide surface allows the hot flue gas in the air inlet 411 to flow obliquely upwards into the second mist exhaust pipe 41. For example, when the air inlet 411 is a rectangular hole, it has a first inner wall and a second inner wall arranged opposite each other in a vertical direction. The first inner wall is higher than the second inner wall, and each of the first and second inner walls forms a second guide surface. The first inner wall can be a convex arc surface or a sloping plane, and the second inner wall can be a concave arc surface or a sloping plane. For example, the second mist exhaust pipe 41 includes a guide body and a guide protrusion. The guide body has a second mist exhaust pipe 41 that runs through it in the vertical direction, and the guide protrusion protrudes from the inner wall of the second mist exhaust pipe 41. One end of the air inlet 411 extends through the outer peripheral wall of the guide body, and the other end extends through the upper surface of the guide protrusion. The inner wall of the air inlet 411 forms the aforementioned second guide surface.

[0090] In some embodiments, such as Figure 4 and Figure 5 As shown, the air inlet 411 is located below the smoke inlet 111, causing the hot flue gas in the condenser housing 11 to flow downwards first, then enter the second mist exhaust pipe 41 through the air inlet 411, and then enter the first mist exhaust pipe 3 above from the second mist exhaust pipe 41. The hot flue gas has an overall U-shaped trend in the condenser housing 11. From the smoke inlet 111 to the air inlet 411, the hot flue gas path is roughly L-shaped. By setting the first guide surface 412, the hot flue gas can be prevented from blowing directly into the water mist in the second mist exhaust pipe 41, and at the same time, pressure is avoided on the misting of the atomizing unit 22 below. This optimizes the smoothness of the hot flue gas entering the second mist exhaust pipe 41, avoids wind pressure obstruction at the mist outlet 210, and improves the mist exhaust effect after the condensed water is atomized.

[0091] In some embodiments, such as Figure 8 As shown, the atomizing unit 22 is equipped with an atomizing water level detection unit to detect the liquid level inside the atomizing housing 21, facilitating real-time control of the atomizing unit 22 based on the water level inside the atomizing housing 21. The atomizing water level detection unit includes an atomization trigger water level detection element and an atomization stop water level detection element. The atomization trigger water level detection element detects whether the water level inside the atomizing housing 21 has reached the atomization trigger water level to start the atomizing unit 22, and the atomization stop water level detection element detects whether the water level inside the atomizing housing 21 has reached the atomization stop water level to stop the atomizing unit 22. The atomization trigger water level detection element, the atomization stop water level detection element, and the atomizing unit 22 are all electrically connected to the controller of the condensing gas water heater. The controller controls the atomizing unit 22 to operate based on the detection signals from the atomization trigger water level detection element and the atomization stop water level detection element.

[0092] Because the mist outlet 210 at the top of the atomizing housing 21 is directly connected to the inner cavity of the condenser housing 11, the hot flue gas comes into direct contact with the water inside the atomizing housing 21. This can cause the water quality inside the atomizing housing 21 to be affected by the backflow of condensate and flue gas, resulting in the water quality inside the atomizing housing 21 becoming weakly acidic again, affecting the service life of the atomizing unit 22. Therefore, in some embodiments, an atomizing neutralization filter 23 is provided inside the atomizing housing 21 to perform real-time acid-base balance adjustment of the water quality inside the atomizing housing 21, creating a neutral atomizing water environment for the atomizing unit 22.

[0093] In some embodiments, such as Figure 1 and Figure 3 As shown, the condenser housing 11 is connected to the exhaust pipe 5. The first mist exhaust pipe 3 is inserted into and fixed to the exhaust pipe 5. An exhaust channel is formed between the first mist exhaust pipe 3 and the exhaust pipe 5. One end of the exhaust channel is connected to the inner cavity of the condenser housing 11, and the other end is connected to the outside atmosphere. A small amount of hot flue gas is discharged into the outside atmosphere through the exhaust channel. At the same time, the hot flue gas in the exhaust channel is used to insulate the first mist exhaust pipe 3, so as to prevent the water mist in the first mist exhaust pipe 3 from contacting the inner wall of the first mist exhaust pipe 3 and condensing and flowing back into the atomizing housing 21 below.

[0094] When the cross-sectional area of ​​the inner hole of the first mist exhaust pipe 3 is too large and the cross-sectional area of ​​the smoke exhaust channel is too small, the inner wall of the first mist exhaust pipe 3 may become too cold or insufficiently insulated. This causes the mist to easily condense and liquefy upon contact with the inner wall of the first mist exhaust pipe 3 and flow back downward into the atomizing shell 21, reducing the amount of mist exhaust. Conversely, when the cross-sectional area of ​​the inner hole of the first mist exhaust pipe 3 is too small and the cross-sectional area of ​​the smoke exhaust channel is too large, since the atomizing shell 21 is mainly located at the center below the first mist exhaust pipe 3, there is too little hot smoke flowing inside the first mist exhaust pipe 3. This is obviously not conducive to timely gathering and collecting the generated mist, causing the water mist to drift into the surrounding space. This makes the mist flow field more tortuous and chaotic, which is not conducive to maximizing the entry of water mist into the first mist exhaust pipe 3. The arrangement of the first guide surface 412 and the second guide surface can increase the smoothness of hot flue gas entering the second mist exhaust pipe 41, and guide the hot flue gas in the condenser shell 11 into the second mist exhaust pipe 41 in an upward direction. This can prevent the hot flue gas from blowing directly into the root of the mist, and also guide the mist. At the same time, it can avoid the formation of wind pressure obstruction in the inner cavity of the atomizing shell 21, thereby improving the mist exhaust effect after the condensate is atomized.

[0095] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0096] The specific embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. Condensate atomizing device, characterized in that include: A condenser housing (11) is provided with a smoke inlet (111); Atomizing housing (21) with a mist outlet (210) at the upper end and a water inlet at the lower end, wherein the mist outlet (210) and the water inlet are respectively connected to the condenser housing (11); Atomizing unit (22) is disposed at the bottom of the atomizing housing (21); The first mist exhaust pipe (3) has its upper end connected to the outside atmosphere and its lower end formed with a mist inlet (30) located inside the condenser shell (11). The mist inlet (30) is located above the mist outlet (210). The second mist exhaust pipe (41) has an air inlet (411) on its side wall. The second mist exhaust pipe (41) can move up and down with the liquid level of the condensate in the condenser housing (11) so that the air inlet (411) can move between the mist outlet (210) and the mist inlet (30). The mist outlet (210) is connected to the mist inlet (30) through the second mist exhaust pipe (41). The smoke inlet (111) is connected to the mist inlet (30) through the air inlet (411).

2. The condensed water atomizing device according to claim 1, characterized by, Along the vertical direction, the upper end of the second mist exhaust pipe (41) is moved to the lower end of the first mist exhaust pipe (3) so that the air inlet (411) moves between the mist outlet (210) and the mist inlet (30).

3. The condensate atomizing device according to claim 2, characterized in that, The condensate atomizing device also includes: A buoyancy component (42) is disposed inside the condenser shell (11) and connected to the second mist exhaust pipe (41); along the vertical direction, the lower end face of the buoyancy component (42) is lower than the lower end face of the second mist exhaust pipe (41).

4. The condensate atomizing device according to claim 3, characterized in that, The second mist exhaust pipe (41) and the buoyancy component (42) are connected in the vertical direction. The buoyancy component (42) is provided with a mist passage (421) that runs through in the vertical direction. The mist outlet (210) is connected to the second mist exhaust pipe (41) through the mist passage (421).

5. The condensed water atomizing device according to claim 3, characterized by The condensate atomizing device also includes a connector (43), one end of which is provided with a limiting part (431); The limiting part (431) abuts against the buoyancy member (42), and the other end of the connector (43) passes through the buoyancy member (42) and is then engaged with the second mist exhaust pipe (41); or, the limiting part (431) abuts against the second mist exhaust pipe (41), and the other end of the connector (43) passes through the second mist exhaust pipe (41) and is then engaged with the buoyancy member (42).

6. The condensate atomizing device according to claim 5, characterized in that, The air inlet (411) is provided in multiple ways, and the multiple air inlets (411) are arranged circumferentially around the second mist exhaust pipe (41).

7. The condensed water atomizing device according to claim 2, characterized by, One of the second mist exhaust pipe (41) and the first mist exhaust pipe (3) is rotatably connected to a rolling element (415), and the other is provided with a guide groove (31). The rolling element (415) and the guide groove (31) are rotatably connected in the up and down direction.

8. The condensed water atomizing device according to claim 7, characterized by The second mist exhaust pipe (41) or the first mist exhaust pipe (3) of the guide groove (31) is provided with an upper limit member and a lower limit member arranged opposite to each other in the vertical direction, and the upper limit member is located above the lower limit member; The rolling element (415) is positioned between the upper limit element and the lower limit element in the vertical direction.

9. The condensed water atomizing device according to claim 1, characterized by, The outer wall of the air inlet (411) of the second mist exhaust pipe (41) includes a first guide surface (412). The first guide surface (412) is not higher than the air inlet (411). The first guide surface (412) is connected to the inner wall of the air inlet (411). Along the direction from bottom to top, the first guide surface (412) gradually approaches the central axis of the second mist exhaust pipe (41). And / or, the inner wall of the air inlet (411) is formed with a second guide surface, which gradually approaches the central axis of the second mist exhaust pipe (41) in the direction from bottom to top.

10. Condensing gas water heater, characterized in that, Includes the condensate atomizing device according to any one of claims 1 to 9.

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