Atomization water removal device and condensing gas water heater with atomization water removal device
By atomizing the condensate water with the flue gas, the problem of complex condensate water discharge from condensing gas water heaters is solved, achieving efficient and simplified drainage and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU CLOUWI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-05
AI Technical Summary
Existing condensing gas water heaters suffer from complex installation and low efficiency in condensate drainage. Furthermore, the acidic aqueous solution in the high-temperature flue gas cannot be directly discharged and requires an additional water storage container or a complex drainage channel.
A water removal device is adopted, which uses water-spraying collision atomization technology to atomize the condensate water solution and discharge it with the flue gas. The flue gas flow carries away the water mist. The design includes an atomizing disc, a grid, and a drive device to form water mist, avoiding water droplet backflow and corrosion.
It achieves efficient condensate drainage, simplifies the installation process, avoids the need for additional water storage containers, extends the life of drive equipment, reduces the risk of water droplet corrosion, and improves flue gas circulation efficiency.
Smart Images
Figure CN224327365U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of household appliance technology, specifically relating to an atomizing water removal device and a condensing gas water heater with an atomizing water removal device. Background Technology
[0002] Condensing gas water heaters are widely used due to their energy-saving and environmentally friendly characteristics. They preheat cold water by absorbing the residual heat of the high-temperature flue gas produced by combustion, thereby improving the thermal efficiency of the gas water heater. However, during the preheating process, water vapor in the high-temperature flue gas condenses into a large amount of liquid water in the condenser. Because the high-temperature flue gas produced by natural gas combustion contains a large amount of acidic substances (carbon oxides, sulfur oxides, nitrogen oxides, etc.), which dissolve in the water, the water becomes acidic and cannot be directly discharged outdoors. The discharge of this water remains a problem to be solved.
[0003] Currently, most gas water heaters on the market require a pre-installed drain outlet and drain pipe, which must be connected to a floor drain during installation. Alternatively, a temporary water storage container can be installed at the drain outlet, requiring frequent emptying by the user. Other solutions, such as connecting to other special drainage channels, are also unpopular due to their increased installation costs and complexity. Therefore, to address these issues and technical needs, a new structure is required to effectively drain condensate from gas water heaters. Summary of the Invention
[0004] To address the aforementioned problems, the purpose of this utility model is to provide an atomizing water removal device and a condensing gas water heater equipped with the atomizing water removal device. By adopting a water-spraying collision atomization technology, the condensate solution can be effectively atomized into water mist, which is discharged from the gas water heater along with the flue gas. This solves the problem of using an additional water storage container to drain water in the existing technology, and also provides good drainage.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A water-removing atomizing device includes an atomizing shell, a driving device, an atomizing disc, and a grid. The atomizing shell has an air inlet and an air outlet. A protective shell is provided on the outside of the driving device. The protective shell is partially or entirely located inside the atomizing shell. The driving end of the driving device passes through the protective shell and is connected to the atomizing disc. The grid is located on the outside of the atomizing disc. Both the atomizing disc and the grid are located between the air inlet and the air outlet. At least two of the axes of the atomizing disc, the air inlet, and the air outlet are not on the same straight line. The area of the air inlet is not less than 30% of the area of the disc.
[0007] As is common knowledge, a drive unit includes a body and a drive end, where the drive end refers to the power output end of the drive unit. A protective housing protects the drive unit, isolating it from the water mist to reduce corrosion caused by prolonged exposure to a humid environment. In this invention, the water to be atomized is delivered to an atomizing disc. The drive unit rotates the atomizing disc, ejecting the water that collides with the grille to form a water mist, which is then discharged from the gas water heater along with the flue gas generated in the main combustion chamber.
[0008] In this invention, the axis refers to a straight line that extends infinitely. If the axis of the atomizing disc, the axis of the air inlet, and the axis of the air outlet are all on a straight line, the flow path of the flue gas through the air inlet and the flow path of the flue gas / water vapor mixture are basically the same. The probability of larger water vapor particles being flushed out with the flue gas is relatively high. However, larger water vapor particles are relatively easy to condense. Some of the condensed water droplets will flow back, and some water vapor particles will condense along the outer wall of the exhaust pipe, causing water to drip at the exhaust pipe opening or flow along the outer wall of the exhaust pipe to the exterior of the building. By designing at least two of the axes of the atomizing disc, the air inlet, and the air outlet on different straight lines, the flow path of the flue gas through the air inlet and the flow path of the flue gas / water vapor mixture are different, which can reduce the ability of larger water vapor particles to be flushed out with the flue gas.
[0009] In this invention, the area of the air inlet refers to the area of the largest cross-section of the air inlet, and the area of the turntable refers to the projected area of the water-receiving surface of the turntable. Partial condensate backflow will obstruct the upward movement of some flue gas, increasing the flow resistance. Therefore, the area of the air inlet is designed to be no less than 30% of the turntable area; further, the area of the air inlet is no less than 40% of the turntable area; and even further, the area of the air inlet is no less than 50% of the turntable area. As is common knowledge, the air inlet area is no larger than 100% of the area of the air inlet surface. This structure can increase the flue gas flow rate to balance the obstruction of flue gas upward movement by the backflowing condensate. The air inlet surface refers to the surface where the flue gas enters the atomizing shell. As an example, when the air inlet is the lower wall of the atomizing shell, the area of the air inlet is equal to 100% of the area of the air inlet surface, and the lower wall (air inlet surface) of the atomizing shell has an open structure.
[0010] Preferably, the atomizing disc has a disc-shaped structure, an inverted conical structure, or an inverted frustum-shaped structure; the outer wall of the atomizing disc has an arc-shaped structure. The atomizing disc having a disc-shaped structure, an inverted conical structure, or an inverted frustum-shaped structure means that the main structure of the atomizing disc is a disc-shaped structure, an inverted conical structure, or an inverted frustum-shaped structure. The arc-shaped outer wall of the atomizing disc means that the outer wall from the bottom to the top of the atomizing disc has an arc-shaped structure, which reduces the impact on the smoke compared to a vertical surface (plane), facilitates the upward movement of the smoke, and efficiently carries away the water mist.
[0011] Preferably, the grille includes a fixed ring and columns spaced apart on the fixed ring; the outer walls of the fixed ring and the outer walls of the columns are both arc-shaped. The arc-shaped outer walls of the fixed ring and the columns mean that the outer walls from the bottom to the top of the fixed ring and the outer walls from the bottom to the top of the columns are both arc-shaped, which reduces the impact on the flue gas compared to a vertical (planar) surface, facilitates the upward movement of the flue gas, and efficiently carries away water mist.
[0012] Preferably, the axes of the atomizing disc, the air inlet, and the air outlet are not on the same straight line. In this structure, the air inlet and the atomizing disc may partially overlap or not overlap, the atomizing disc and the air outlet may partially overlap or not overlap, and the air inlet and the air outlet may partially overlap or not overlap.
[0013] As is common knowledge, the overlap in this utility model refers to the projection of each component onto the same plane, rather than actual contact overlap, which can be understood by those skilled in the art based on common sense.
[0014] Preferably, the upper surface of the air inlet is higher than the upper surface of the wall of the air inlet surface, forming a water return temporary storage chamber; the water return temporary storage chamber is equipped with a drain pipe. In actual production, a section of pipe is left on the upper surface of the condenser, a conventional component of the gas water heater. The air inlet can be directly connected to the condenser, or it can be connected to the condenser through a conventional connecting pipe that conforms to the flue gas emission of the gas water heater; the air outlet can be directly connected to the flue gas pipe of the conventional component of the gas water heater, or it can be connected to the flue gas pipe of the conventional component of the gas water heater through a conventional connecting pipe that conforms to the flue gas emission of the gas water heater. Preferably, the air inlet is directly connected to the condenser, and the air outlet is directly connected to the exhaust pipe. In this structure, both the air inlet and outlet surfaces of the atomizing shell are semi-enclosed. To facilitate communication between the atomizing shell and the condenser and exhaust pipe, both the air inlet and outlet are pipe-type structures. The upper surface of the air inlet is higher than the upper surface of the wall of the air inlet surface, meaning the pipe extends into the atomizing shell. This creates a temporary water return chamber to catch the returned condensate, reducing the backflow of condensate from the air inlet and hindering the upward movement of flue gas. By installing a drain pipe, the returned condensate can be transported to the water collection chamber for re-atomization and discharge.
[0015] Preferably, the atomizing shell and the protective shell are integrated into one piece. The atomizing shell and the protective shell are integrally molded using conventional techniques, reducing subsequent assembly time.
[0016] Preferably, the outer wall of the drive device is not in complete contact with the inner wall of the protective housing. This partial contact facilitates heat dissipation from the drive device. More preferably, the inner wall of the protective housing is provided with an isolation element, ensuring that the inner wall of the protective housing is not in complete contact with the outer wall of the drive device. In practical applications, the isolation element can be an isolation column, isolation ring, or other structure, selected as needed, as long as it provides space for heat dissipation and does not affect the understanding of the technical effects of this invention by those skilled in the art.
[0017] Preferably, a shaft seal is fitted onto the drive end of the drive device; the shaft seal may be partially or entirely located inside the protective housing, or the shaft seal may be located outside the protective housing. The shaft seal is used to further isolate water mist and reduce the possibility of water mist flowing out from the gap between the drive end of the drive device and the protective housing; preferably, the shaft seal has multiple layers of sealing lips to improve the sealing effect. As is common knowledge, the shaft seal is in close contact with the protective housing.
[0018] Furthermore, the atomizing water removal device also includes a water collection chamber; a water delivery mechanism is provided between the water collection chamber and the atomizing disc; the water delivery mechanism includes a water pipe; a water channel is provided between the water pipe and the atomizing disc; the inlet of the water channel faces downwards. The water delivery mechanism also includes a water conveying power device, such as a conventional water pump, for providing power for conveying condensate. The water collection chamber is used to collect condensate generated from preheated cold water; the water delivery mechanism is used to deliver the condensate to the atomizing disc. In existing condensing gas water heaters, the condenser shell is generally connected to the flue pipe to form a flue gas flow path. The flue gas generated by combustion flows sequentially through the condenser shell and the flue pipe, and then is discharged outdoors. In this invention, the atomizing disc can be located above or below the water collection chamber, preferably above. With this structure, the atomizing water removal device can be directly installed on the conventional flue gas flow path, fully utilizing the flue gas to drive the water mist out. Considering cost, flexible water pipes are preferred, as they offer greater installation flexibility and lower cost compared to rigid pipes. However, if the atomizing disc is placed above the water collection chamber, the condensate needs to be transported from bottom to top. Setting the water inlet of the water channel downwards avoids bending of the flexible water pipe, ensuring normal condensate transport. If the atomizing disc is placed below the water collection chamber, the condensate is transported from top to bottom, altering the conventional flue gas flow path. This requires additional pipes to discharge the flue gas or to connect to the conventional flue gas flow path, not only failing to fully utilize the flue gas but also occupying space.
[0019] Preferably, the water collection chamber is equipped with a filter and / or a water level sensor. The filter is used to filter impurities in the condensate; the water level sensor is used to monitor the condensate water level in the collection chamber. When the set water level is reached, a water level signal is transmitted to the central controller of the condensing gas water heater, which then controls the start and stop of the drive equipment to prevent the drive equipment from running for a long time and extend the service life of the components.
[0020] A condensing gas water heater with an atomizing water removal device includes the aforementioned atomizing water removal device. As is common knowledge, a condensing gas water heater includes a central controller, a water inlet pipe, a combustion chamber, a combustion control fan, a condenser, and an exhaust pipe. The combustion chamber, condenser shell, and exhaust pipe are connected to form a flue gas flow path, allowing the flue gas generated in the combustion chamber to flow through the condenser and be discharged from the exhaust pipe. Preferably, the atomizing water removal device is located inside the condensing gas water heater. The air inlet is directly connected to the condenser, a conventional component of the condensing gas water heater, and the air outlet is directly connected to the exhaust pipe, another conventional component. A water delivery mechanism sends the condensed water in the collection chamber to the atomizing disc. The rotating atomizing disc ejects the condensed water, which collides with the grille to form a water mist. This mist is then discharged from the condensing gas water heater along with the flue gas generated in the main combustion chamber and discharged outdoors through the exhaust pipe.
[0021] Due to the application of the above technical solution, the beneficial effects of this utility model compared to the prior art are as follows:
[0022] (1) In view of the problem that the existing condensate water (containing impurities) discharge scheme of the gas water heater is complicated and inefficient, the present invention designs a water-splashing collision atomization technology that can effectively atomize the condensate water solution into water mist, which is discharged from the gas water heater along with the flue gas, solving the problem of using an additional water storage container to discharge water in the existing technology, and the drainage effect is good.
[0023] (2) By setting a protective housing on the outside of the drive device and cooperating with the shaft seal, the drive device is isolated from water mist, which effectively avoids water corrosion of the drive device and extends the service life of the drive device; in addition, by setting an isolation component on the inner wall of the protective housing, the inner side wall of the protective housing does not completely contact the outer side wall of the drive device, which improves the heat dissipation effect of the drive device.
[0024] (3) In this utility model, at least two of the axes of the atomizing disc, the air inlet, and the air outlet are designed to be on different straight lines, which reduces the ability of large water vapor particles in the water vapor to be flushed out with the flue gas, thereby reducing the dripping phenomenon and preventing the building from being corroded.
[0025] (4) The area of the air inlet is designed to be no less than 30% of the area of the turntable, which increases the flue gas flow rate and balances the situation where the refluxed condensate water hinders the upward movement of the flue gas. In addition, by designing the upper surface height of the air inlet to be higher than the upper surface height of the wall of the air inlet, a water return temporary storage cavity is formed to catch the refluxed condensate water, reducing the refluxed condensate water from flowing back from the air inlet, and further clearing obstacles for the upward movement of the flue gas.
[0026] (5) By designing the outer wall of the atomizing disc, the outer wall of the fixing ring, and the outer wall of the column as an arc structure, the impact on the flue gas is weakened compared to the vertical surface (plane), which is conducive to the flue gas continuing to rise and efficiently carrying away water mist.
[0027] (6) Furthermore, in order to reduce production costs, this utility model prefers to use soft water pipes for water delivery. At the same time, in order not to affect normal water delivery, the water inlet of the water channel is set to a downward structure to avoid bending of the soft water pipe. Attached Figure Description
[0028] Figure 1 This is a three-dimensional schematic diagram of the atomizing water removal device in Example 1 (air inlet omitted).
[0029] Figure 2 This is a three-dimensional schematic diagram of the atomizing water removal device in Example 1.
[0030] Figure 3 This is a cross-sectional view of the atomizing water removal device in Example 1.
[0031] Figure 4 This is a front view of the atomizing water removal device in Embodiment 1.
[0032] Figure 5 This is a bottom view of the atomizing water removal device in Example 1.
[0033] Figure 6 This is a top view of the atomizing water removal device in Example 1.
[0034] Figure 7 This is a schematic diagram of the atomizing disc in Example 1.
[0035] Figure 8 This is a schematic diagram of the grille structure in Example 1.
[0036] Figure 9 This is a schematic diagram of the air inlet structure in Embodiment 1.
[0037] Figure 10 This is a schematic diagram of the air outlet structure in Example 1.
[0038] Figure 11 This is a cross-sectional view of the atomizing water removal device in Example 2.
[0039] Figure 12 This is a schematic diagram of the structure of a condensing gas water heater with an atomizing dewatering device according to Embodiment 2.
[0040] The components include: atomizing housing 1, driving device 2, atomizing disc 3, grille 4, protective housing 5, isolation column 6, outer cover 7, shock absorber 8, shaft seal 9, return water storage chamber 10, drain pipe 11, condenser 12, exhaust pipe 13, water collection chamber 14, silicone hose 15, water conveying power equipment 16, water channel 17, filter 18, air inlet 101, air outlet 102, fixing ring 401, column 402, and sealing lip 901. Detailed Implementation
[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments. The specific components involved are existing products, and the specific components are provided with conventional mounting holes. The connection and usage methods between the specific components are conventional technologies.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “inverted,” “length,” “width,” “upper,” “lower,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are merely for the convenience of describing the following embodiments, and should not be construed as limiting the invention. Example 1
[0043] like Figures 1 to 10 As shown:
[0044] A water-removing atomizing device includes an atomizing housing 1, a driving device 2, an atomizing disc 3, and a grille 4. The atomizing housing has an air inlet 101 and an air outlet 102. The driving device is a conventional brushless motor with a protective housing 5 on the outside. The driving end of the brushless motor, i.e., the rotating shaft, passes through the protective housing and is connected to the atomizing disc to drive the atomizing disc to rotate. The atomizing disc and the grille are both located between the air inlet and the air outlet. The grille is located on the outside of the atomizing disc and is installed on the inner wall of the atomizing housing by conventional connectors, such as bolts.
[0045] In this embodiment, the protective housing is entirely located within the atomizing housing and is an integral structure with it. The inner wall of the protective housing is provided with isolation pillars 6, ensuring that the inner wall of the protective housing does not completely contact the outer wall of the drive device, thus providing heat dissipation space for the drive device. The atomizing housing, protective housing, and isolation pillars are integrally formed using conventional technology, reducing subsequent assembly time. In practical applications, an outer cover 7 can also be provided on the side of the drive device away from the drive end to further reinforce the installation of the drive device and improve its operational stability. The outer cover is mounted on the isolation pillars using conventional connectors, such as bolts. See [link to relevant documentation]. Figure 2 A conventional shock-absorbing pad 8 is provided between the outer casing and the drive unit, see [reference]. Figure 3 It is used for vibration reduction and noise reduction.
[0046] In this embodiment, a shaft seal 9 with three layers of sealing lips 901 is fitted onto the shaft of the brushless motor. The shaft seal is entirely located inside the protective housing and is in close contact with the protective housing. See [reference needed]. Figure 3 .
[0047] In this embodiment, both the air inlet and air outlet surfaces of the atomizing shell are semi-enclosed structures. The opening of the air inlet surface is the air inlet, and the opening of the air outlet surface is the air outlet. Both the air inlet and air outlet are pipe-type structures. The pipe of the air inlet extends into the atomizing shell, making the upper surface of the pipe-type air inlet higher than the upper surface of the wall of the air inlet surface (the lower wall of the atomizing shell), thereby forming the water return temporary storage chamber 10. See [reference needed]. Figure 3 , Figure 9 The return water storage chamber is equipped with a drain pipe 11.
[0048] In this embodiment, the axes of the air inlet, the rotary disc, and the air outlet are not collinear. The axis of the air inlet passes through the atomizing disc, and the air inlet and the atomizing disc partially overlap; the axis of the atomizing disc does not pass through the air outlet, and the atomizing disc and the air outlet do not overlap; the axis of the air inlet does not pass through the air outlet, and the air inlet and the air outlet do not overlap. See [link to relevant documentation]. Figure 3 , Figure 5 , Figure 6 .
[0049] In this embodiment, the projection of the water-contacting surface of the turntable, as well as the maximum cross-sections of the air inlet and outlet, are all circular structures. The outer diameter of the projection of the water-contacting surface of the turntable is 80mm, the inner diameter of the maximum cross-section of the air inlet is 73mm, the inner diameter of the maximum cross-section of the air outlet is 60mm, the area of the air inlet is 83.27% of the area of the turntable, and the inner diameter of the air inlet is larger than the inner diameter of the air outlet.
[0050] In this embodiment, the atomizing disk has an inverted frustum-shaped structure, and the outer wall of the atomizing disk has an arc-shaped structure.
[0051] In this embodiment, the grille includes a fixing ring 401 and columns 402 arranged at intervals on the fixing ring; the outer walls of the fixing ring and the outer walls of the columns are both arc-shaped structures. Example 2
[0052] A condensing gas water heater with an atomizing water removal device includes the atomizing water removal device of Embodiment 1. This condensing gas water heater has the basic components and structure of a conventional condensing gas water heater, such as a central controller, water supply pipes, combustion chamber, combustion control fan, condenser 12, and exhaust pipe 13. The connection methods between specific components and the control method of the central controller are conventional technologies.
[0053] The atomizing water removal device also includes a water collection chamber 14; a water delivery mechanism is provided between the water collection chamber and the atomizing disc; the water delivery mechanism includes a silicone hose 15 and a water delivery power device 16 to deliver condensate to the atomizing disc.
[0054] In this embodiment, the water delivery power equipment uses conventional water. The atomizing disc is located above the water collection chamber. A water channel 17 is provided between the outlet of the silicone hose and the atomizing disc, located on the atomizing housing. The inlet of the water channel faces downwards. (See attached image.) Figure 11 This can prevent the soft water pipes from bending and ensure the normal delivery of condensate.
[0055] In this embodiment, the atomizing water removal device is located inside the condensing gas water heater. The air inlet is directly connected to the condenser, a conventional component of the condensing gas water heater, and the air outlet is directly connected to the flue pipe, another conventional component of the condensing gas water heater. The drain pipe and water collection chamber are respectively connected to the condenser. (See [reference]). Figure 12 .
[0056] In this embodiment, a filter 18 is provided inside the water collection chamber.
[0057] The specific usage method is as follows:
[0058] (1) When the condensing burner is working, it produces flue gas and condensate, and the condensate is stored in the water collection chamber;
[0059] (2) The water pump delivers the condensate to the atomizing plate. The brushless motor drives the atomizing plate to rotate, spraying water onto the grid to form water mist. The flue gas enters the atomizing shell from the air inlet, and the water mist is flushed out of the mist outlet with the flue gas and discharged from the exhaust pipe.
[0060] Furthermore, the returned condensate falls into the return water storage chamber and is then transported to the water collection chamber by the drain pipe, repeating step (2). Example 3
[0061] Based on Embodiment 2, the difference in this embodiment is that a water level sensor is also installed in the water collection chamber; otherwise, it is the same. The water level sensor is used to monitor the condensate water level in the water collection chamber. When the set water level is reached, it transmits a water level signal to the central controller of the condensing gas water heater. The central controller then controls the start and stop of the atomizing head. The specific connection method and usage method are conventional technologies.
[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A misting water removal device, characterized in that: The device includes an atomizing shell, a driving device, an atomizing disc, and a grille. The atomizing shell has an air inlet and an air outlet. A protective shell is provided on the outside of the driving device. The protective shell is partially or entirely located inside the atomizing shell. The driving end of the driving device passes through the protective shell and is connected to the atomizing disc. The grille is located on the outside of the atomizing disc. Both the atomizing disc and the grille are located between the air inlet and the air outlet. At least two of the axes of the atomizing disc, the air inlet, and the air outlet are not on the same straight line. The area of the air inlet is not less than 30% of the area of the disc.
2. The atomizing water removal device according to claim 1, characterized in that: The atomizing disc has a disc-shaped structure, an inverted conical structure, or an inverted frustum-shaped structure; the outer wall of the atomizing disc has an arc-shaped structure.
3. The atomizing water removal device according to claim 1, characterized in that: The grid includes a fixed ring and columns arranged at intervals on the fixed ring; the outer walls of the fixed ring and the outer walls of the columns are both arc-shaped structures.
4. The atomizing water removal device according to claim 1, characterized in that: The axes of the atomizing disc, the air inlet, and the air outlet are not on the same straight line.
5. The atomizing water removal device according to claim 1, characterized in that: The upper surface of the air inlet is higher than the upper surface of the wall of the air inlet surface, forming a water return temporary storage chamber; the water return temporary storage chamber is equipped with a drain pipe.
6. The atomizing water removal device according to claim 1, characterized in that: The atomizing shell and the protective shell are integrated into one structure.
7. The atomizing water removal device according to claim 1, characterized in that: The outer wall of the drive device is not in complete contact with the inner wall of the protective housing.
8. The atomizing water removal device according to claim 1, characterized in that: A shaft seal is fitted onto the drive end of the drive device; the shaft seal may be partially or entirely located inside the protective housing, or the shaft seal may be located outside the protective housing.
9. The atomizing water removal device according to claim 1, characterized in that: The atomizing water removal device also includes a water collection chamber; a water delivery mechanism is provided between the water collection chamber and the atomizing disc; the water delivery mechanism includes a water pipe; a water channel is provided between the water pipe and the atomizing disc; the water inlet of the water channel faces downward.
10. A condensing gas water heater with an atomizing dewatering device, characterized in that: Includes the atomizing water removal device according to any one of claims 1 to 9.