Efficient atomization water removal device and condensation type gas water heater

Abstract

The utility model discloses an efficient atomization water removal device and a condensation type gas water heater. The efficient atomization water removal device comprises a rotating disc, first driving equipment and an atomization cavity. The turntable is connected with first driving equipment; the first driving equipment is positioned inside or outside the atomization cavity; the atomization cavity is provided with an air inlet and an air outlet; the efficient atomization water removal device has one or two of the following structures: fan blades are arranged in an atomization cavity; and the area of the air inlet is not less than 30% of the area of the turntable. The water removal function is achieved, meanwhile, the situation that in the prior art, backflow condensate water hinders flue gas from ascending is relieved, flue gas circulation resistance is reduced, the flue gas circulation amount is increased, and condensate water discharging is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, specifically relating to a high-efficiency atomizing water removal device and a condensing gas water heater. Background Technology

[0002] Compared to ordinary gas water heaters, condensing gas water heaters have an additional condensing heat exchanger. This exchanger preheats cold water by absorbing high-temperature flue gas, thus improving heat conversion efficiency and saving on gas costs. However, condensing water heaters produce condensate during the preheating process, and acidic gases from the flue gas dissolve in the condensate, forming acidic condensate.

[0003] Currently, atomizing acidic condensate and discharging it with flue gas is one of the trends in condensate treatment. Prior art involves feeding condensate onto a rotary table, which is driven to rotate, throwing the water out and colliding it with any vertical surface to atomize it, thus allowing it to be discharged with the combustion flue gas. However, practical applications have revealed that condensate flows back to the bottom of the rotary table, hindering some of the flue gas from rising and increasing flow resistance. Therefore, to address these issues and technical requirements, it is necessary to improve existing condensate treatment devices. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a high-efficiency atomizing water removal device and a condensing gas water heater, which, while achieving the water removal function, alleviates the problem of backflowing condensate water obstructing the upward movement of flue gas in the prior art, reduces flue gas flow resistance, increases flue gas flow volume, and facilitates condensate water discharge.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A high-efficiency atomizing water removal device includes a turntable, a first driving device, and an atomizing chamber; the turntable is connected to the first driving device; the first driving device is located inside or outside the atomizing chamber; the atomizing chamber is provided with an air inlet and an air outlet; the high-efficiency atomizing water removal device has one or two of the following structures: the atomizing chamber is provided with fan blades; the area of ​​the air inlet is not less than 30% of the area of ​​the turntable.

[0007] 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-contacting surface of the turntable. Condensate is transported to the turntable, which is driven to rotate by the first driving device, throwing the water out to collide with the atomizing chamber, forming atomized condensate, which is then discharged from the gas water heater along with the flue gas generated by combustion in the main combustion chamber. Part of the condensate flows back. By installing fan blades within the atomizing chamber, specifically positioned along the flue gas flow path, the fan blades can provide flow power to the flue gas and reduce resistance. In practical applications, the shape and size of the fan blades are not specifically limited, as long as they can provide airflow. Alternatively, the area of ​​the air inlet can be designed to be no less than 30% of the turntable area, further, no less than 40% of the turntable area, and even further, no less than 50% of the turntable area. As is common sense, it should not exceed 100% of the area of ​​the air inlet surface, increasing the flue gas intake to balance the obstruction of the flue gas upwards by the returning condensate. The air intake surface refers to the surface on which the flue gas enters the atomizing cavity. For example, when the air intake surface is the lower wall of the atomizing cavity, the area of ​​the air inlet is equal to 100% of the area of ​​the air intake surface where the air inlet is located, and the lower wall of the atomizing cavity has an open structure.

[0008] In this invention, the first driving device is located outside the atomizing chamber, meaning that the first driving device and the atomized condensate are not in the same chamber, thus preventing the first driving device from being exposed to a humid environment for a long time and causing corrosion. Preferably, the first driving device is located outside the atomizing chamber. The turntable can be placed horizontally, vertically, or in other ways; preferably, the turntable is placed horizontally and rotates horizontally under the drive of the first driving device, which can provide better water-throwing ability than other rotation methods.

[0009] Furthermore, the inner diameter of the air inlet is greater than, equal to, or less than the inner diameter of the air outlet. The inner diameter refers to the maximum cross-sectional inner diameter of the air inlet or outlet. In practical applications, the air outlet can be directly connected to the exhaust pipe of a conventional component of the gas water heater, or it can be connected to the exhaust pipe of a conventional component of the gas water heater through a connecting pipe that conforms to the gas water heater's flue gas emission specifications. Preferably, the air outlet is directly connected to the exhaust pipe of a conventional component of the gas water heater. Generally, the exhaust outlet of the gas water heater needs to match the exhaust pipe to avoid the exhaust outlet being too large or too small, which would increase the difficulty of connection.

[0010] Furthermore, the fan blade and the turntable are an integral structure, located on the non-water-contact side of the turntable; or the fan blade and the turntable are separate structures, with the fan blade connected to the first driving device or the turntable; or the fan blade and the turntable are separate structures, with the fan blade positioned within the atomizing chamber via a second driving device. When the fan blade and the turntable are separate structures and connected to the first driving device, the first driving device simultaneously drives both the turntable and the fan blade to rotate. When the fan blade and the turntable are separate structures and connected to the turntable, the first driving device drives both the turntable and the fan blade to rotate, eliminating the need for an additional driving device to drive the fan blade. When the fan blade and the turntable are separate structures, with the fan blade positioned within the atomizing chamber via a second driving device, the fan blade is located on the flue gas flow path. The second driving device is an additional driving device; the first driving device drives the turntable independently, and the second driving device drives the fan blade independently.

[0011] Preferably, the turntable has a grille on its outer side. The grille includes a fixing ring and columns spaced apart on the fixing ring. Further, the grille is entirely or partially located within the atomizing chamber. The condensate sprayed from the turntable collides with the grille to form atomized condensate. The grille is fixed using conventional technology and can be installed on the first driving device or the inner wall of the atomizing chamber using conventional connectors, as long as the grille can be fixed to the outer side of the turntable.

[0012] Preferably, the grille is provided with a water-receiving component located at the bottom of the grille. More preferably, the water-receiving component has a drain outlet; when the entire grille is located within the atomizing chamber, the drain outlet is not directly above the air inlet, or a drain pipe is connected to the drain outlet; when the grille is partially located within the atomizing chamber, a drain pipe is connected to the drain outlet. The condensate sprayed from the turntable collides with the grille, forming atomized condensate. Some of the condensate adheres to the grille and then flows back. By providing a water-receiving component on the grille, the backflowing condensate is caught, preventing it from flowing back from the air inlet and obstructing the upward movement of the flue gas. In practical applications, the shape of the water-receiving component is not specifically limited, as long as it can catch the backflowing condensate from the grille. When the entire grille is located within the atomizing chamber and the drain outlet is not directly above the air inlet, the air inlet surface has a semi-enclosed structure. The returned condensate can flow directly onto the wall of the air inlet surface where the air inlet is located. Furthermore, the atomizing chamber is equipped with a drain pipe to transport the returned condensate to the condensate collection chamber for re-atomization and discharge. When the entire grille is located within the atomizing chamber and a drain pipe is connected to the drain outlet, the air inlet surface can be either a semi-enclosed or open structure. The returned condensate is transported to the condensate collection chamber through the drain pipe for re-atomization and discharge. When the grille is partially located within the atomizing chamber and a drain pipe is connected to the drain outlet, the air inlet surface can be either a semi-enclosed or open structure. The returned condensate is transported to the condensate collection chamber through the drain pipe for re-atomization and discharge.

[0013] A condensing gas water heater includes the aforementioned high-efficiency atomizing water removal structure. As is common knowledge, the 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, water collection chamber, and exhaust pipe. The connection methods between specific components and the control methods of the central controller are conventional technologies.

[0014] Furthermore, the condensing gas water heater also includes a condenser and a water delivery mechanism. The condenser is used to preheat cold water; the water delivery mechanism includes conventional water transport power equipment, such as a water pump and water pipes, for delivering the condensed water to be atomized to the turntable.

[0015] Furthermore, the outlet of the condenser is connected to the inlet of the atomizing chamber. In actual production, a section of pipe is left on the upper surface of the condenser, and the inlet of the atomizing chamber is connected to it, forming a flue gas flow path. The flue gas generated by combustion in the main combustion chamber passes through the condenser, the atomizing chamber, and the exhaust pipe in sequence before being discharged.

[0016] Due to the application of the above technical solutions, the beneficial effects of this utility model compared to the prior art are as follows: Addressing the problem of complex and inefficient condensate (containing impurities) discharge schemes in existing condensing gas water heaters, this utility model's design of a water-spraying collision atomization technique effectively atomizes the condensate into a 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 for drainage in existing technologies, and also provides better drainage. In particular, in previous technical solutions, condensate would flow back, thus hindering the upward movement of flue gas and increasing its flow resistance. By installing fan blades below the turntable, flow momentum can be provided for the flue gas, reducing resistance. Alternatively, the area of ​​the air inlet can be designed to be no less than 30% of the turntable area to increase the flue gas intake and balance the obstruction of flue gas upward movement by the backflowing condensate. Furthermore, when a grille is installed on the outer side of the turntable, by installing a water-receiving component on the grille to catch the backflowing condensate, the backflowing condensate can be prevented from flowing back from the air inlet, thus avoiding obstruction of flue gas upward movement and reducing the impact of the backflowing condensate on the upward movement of flue gas. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the high-efficiency atomizing water removal device in Example 1 (air inlet omitted).

[0018] Figure 2 This is a schematic diagram of the structure of the high-efficiency atomizing water removal device in Example 1 (air inlet, turntable, and grille omitted).

[0019] Figure 3 This is a schematic diagram of the high-efficiency atomizing water removal device in Example 1.

[0020] Figure 4This is a schematic diagram of the air inlet structure of the high-efficiency atomizing water removal device in Example 1.

[0021] Figure 5 This is a schematic diagram of the high-efficiency atomizing water removal device in Example 2 (air inlet omitted).

[0022] Figure 6 This is a schematic diagram of the rotary structure of the high-efficiency atomizing water removal device in Example 2.

[0023] Figure 7 This is a cross-sectional view of the high-efficiency atomizing water removal device in Example 3.

[0024] Figure 8 This is a top view of the water receiving component of the high-efficiency atomizing water removal device in Embodiment 3.

[0025] Figure 9 This is a schematic diagram of the drain pipe structure of the high-efficiency atomizing water removal device in Example 3.

[0026] Figure 10 This is a schematic diagram of the high-efficiency atomizing water removal device in Example 5 (air inlet omitted).

[0027] Figure 11 This is a cross-sectional view of the high-efficiency atomizing water removal device of Example 7.

[0028] Figure 12 This is a top view of the water receiving component of the high-efficiency atomizing water removal device in Example 7.

[0029] Figure 13 This is a schematic diagram of the condensing gas water heater in Example 10.

[0030] The components include: turntable 1, first driving device 2, atomizing chamber 3, protective shell 4, grille 5, fan blade 6, water receiving part 7, drain pipe 8, condenser 9, water collection chamber 10, smoke exhaust pipe 11, water pump 12, water pipe 13, air inlet 301, air outlet 302, fixing ring 501, triangular prism 502, and drain outlet 701. Detailed Implementation

[0031] 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.

[0032] 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

[0033] like Figures 1 to 4 As shown:

[0034] A high-efficiency atomizing water removal device includes a turntable 1, a first driving device 2, and an atomizing chamber 3. The turntable is connected to the first driving device, which is a conventional brushless motor with a protective shell 4 on its outer side. The first driving device is integrated with the atomizing chamber, placing it outside the chamber. The shaft of the brushless motor passes through the protective shell and connects to the turntable, driving its rotation. The atomizing chamber has an air inlet 301 and an air outlet 302. In practical applications, the protective shell and the atomizing chamber can also be separate structures, depending on the requirements.

[0035] In this embodiment, the turntable is placed horizontally, and a grille 5 is provided on its outer side. The grille includes a fixing ring 501 and triangular prisms 502 arranged at intervals on the fixing ring. The entire grille is located inside the atomizing chamber and is installed on the inner wall of the atomizing chamber by conventional connectors, such as bolts.

[0036] In this embodiment, the air inlet surface of the atomizing chamber is a semi-closed structure, with the opening being the air inlet. The projection of the water surface of the turntable, as well as the maximum cross-sections of the air inlet and outlet, are all circular. The outer diameter of the projection of the water 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. Example 2

[0037] Based on Embodiment 1, the difference in this embodiment is that the non-water-contact side of the turntable is provided with fan blades 6, which are integral with the turntable. See [link to embodiment 1]. Figure 5 , Figure 6 Meanwhile, the maximum cross-sectional inner diameter of the air inlet is adjusted to 58mm, the area of ​​the air inlet is 52.56% of the area of ​​the turntable, the inner diameter of the air inlet is smaller than the inner diameter of the air outlet, and the rest are the same. Example 3

[0038] Based on Embodiment 1, the difference in this embodiment is that a water receiving element 7 is provided at the bottom of the grille, and the water receiving element has a drain outlet 701. The water receiving element has a semi-circular structure, and its drain outlet is not located directly above the air inlet. See [reference needed]. Figure 7 , Figure 8 This allows the returned condensate to flow directly onto the wall of the air intake surface where the air inlet is located; the atomizing chamber is equipped with a drain pipe 8, see [link / reference]. Figure 9 It is used to transport the returned condensate to the condensate collection chamber; at the same time, the maximum cross-sectional inner diameter of the air inlet is adjusted to 68mm, the area of ​​the air inlet is 72.25% of the area of ​​the turntable, the inner diameter of the air inlet is larger than the inner diameter of the air outlet, and the rest are the same. Example 4

[0039] Based on Embodiment 1, the difference in this embodiment is that the maximum cross-sectional inner diameter of the air inlet is adjusted to 60mm, and the inner diameter of the air inlet is equal to the inner diameter of the air outlet, while the rest remains the same. Example 5

[0040] Based on Embodiment 2, the difference in this embodiment is that the fan blades and the turntable are separate structures, and the fan blades are connected to the first drive device. See [link to embodiment 2]. Figure 10 The first drive device drives both the turntable and the fan blades to rotate simultaneously, and the rest are the same. Example 6

[0041] Based on Embodiment 2, the difference in this embodiment is that the fan blades are omitted, while the rest is the same. Example 7

[0042] Based on Embodiment 3, the difference in this embodiment is that the water receiving component is replaced with a conical structure, see [link to Embodiment 3]. Figure 11 , Figure 12 The rest are the same. Example 8

[0043] Based on Example 3, the difference in this example is that the water receiving component is omitted, while the rest is the same. Example 9

[0044] Based on Embodiment 1, the difference in this embodiment is that the protective shell is omitted, and the brushless motor is fixed to the wall of the atomizing chamber and located inside the atomizing chamber, while the rest is the same. Example 10

[0045] A condensing gas water heater includes a high-efficiency atomizing dewatering device as described in Embodiment 1, a condenser 9, and a water delivery mechanism. This condensing gas water heater has the basic components and structure of a conventional condensing gas water heater, including a central controller, water supply pipes, a combustion chamber, a combustion control fan, a water collection chamber 10, and a flue pipe 11. The connection methods between specific components and the control method of the central controller are conventional technologies. The water delivery mechanism includes a conventional water pump 12 and a water pipe 13, used to deliver the condensate to be atomized to the rotary plate. The high-efficiency atomizing dewatering device is connected to the pipe on the condenser through the air inlet of the atomizing chamber and to the flue pipe through the air outlet. See [link to relevant documentation]. Figure 13 .

[0046] The specific usage method is as follows:

[0047] (1) When a condensing gas water heater is working, it produces flue gas and condensate, which is stored in the water collection chamber.

[0048] (2) The water pump delivers the condensate to the turntable, and the brushless motor drives the turntable to rotate, spraying water onto the grid to form water mist. The flue gas enters the atomizing chamber from the air inlet, and the water mist rushes out of the air outlet with the flue gas and is discharged from the exhaust pipe. Comparative Example 1

[0049] Based on Example 1, the maximum cross-sectional inner diameter of the air inlet is adjusted to 42mm, the area of ​​the air inlet is 27.56% of the area of ​​the turntable, the inner diameter of the air inlet is smaller than the inner diameter of the air outlet, and the rest are the same.

[0050] Application Examples

[0051] Parallel experiments were conducted using the high-efficiency atomizing water removal devices of Example 1 and Comparative Example 1 respectively: the same blower was connected to the air inlet of each device in sequence, and a pressure gauge (existing equipment) was connected to the air outlet. The parameters were consistent. Air was blown into the atomizing chamber for two minutes, and the wind pressure data was recorded. The measurement method was conventional technology. The wind pressure under different structures is shown in the table below.

[0052]

[0053] It can be seen that the air pressure at the air outlet of Example 1 is higher than that at the air outlet of Comparative Example 1, indicating that the air resistance in the atomizing cavity of this utility model is small, which reduces the resistance to flue gas flow, increases the flue gas flow, and facilitates the discharge of condensate.

[0054] 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 high-efficiency atomizing water removal device, characterized in that: It includes a turntable, a first driving device, and an atomizing chamber; the turntable is connected to the first driving device; the first driving device is located inside or outside the atomizing chamber; the atomizing chamber is provided with an air inlet and an air outlet; the high-efficiency atomizing water removal device has one or two of the following structures: the atomizing chamber is provided with fan blades; the area of ​​the air inlet is not less than 30% of the area of ​​the turntable.

2. The high-efficiency atomizing water removal device according to claim 1, characterized in that: The inner diameter of the air inlet is greater than, equal to, or less than the inner diameter of the air outlet.

3. The high-efficiency atomizing water removal device according to claim 1, characterized in that: The fan blade and the turntable are an integral structure, located on the non-water-contact side of the turntable; or the fan blade and the turntable are separate structures, with the fan blade connected to the first driving device or the turntable; or the fan blade and the turntable are separate structures, with the fan blade located in the atomizing chamber via the second driving device.

4. The high-efficiency atomizing water removal device according to claim 1, characterized in that: The turntable has a grille on its outer side.

5. The high-efficiency atomizing water removal device according to claim 4, characterized in that: The grille is located entirely or partially within the atomizing cavity.

6. The high-efficiency atomizing water removal device according to claim 4, characterized in that: The grating is equipped with a water-receiving component.

7. The high-efficiency atomizing water removal device according to claim 6, characterized in that: The water receiving component is provided with a drain outlet; when the entire grille is located inside the atomizing chamber, the drain outlet is not located directly above the air inlet or a drain pipe is connected to the drain outlet; when the grille is partially located inside the atomizing chamber, a drain pipe is connected to the drain outlet.

8. A condensing gas water heater, characterized in that: Includes the high-efficiency atomizing water removal device as described in any one of claims 1 to 7.

9. The condensing gas water heater according to claim 8, characterized in that: The condensing gas water heater also includes a condenser and a water delivery mechanism.

10. The condensing gas water heater according to claim 9, characterized in that: The air outlet of the condenser is connected to the air inlet of the atomizing chamber.

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