Condensed water discharge apparatus, condensing-type gas water heater, and water discharge method

Abstract

Disclosed in the present invention are a condensed water discharge device, a condensing-type gas water heater, and a water discharge method. The condensed water discharge device comprises a rotating disc, a water supply device, a rotating disc driver, and a water atomization device; the rotating disc is connected to the rotating disc driver; the water atomization device is located at the edge or the outer side of the rotating disc; the water supply device comprises a water delivery pipe, or the water supply device comprises a water delivery pipe and a water intake device, or the water supply device comprises a self-priming device; the water supply device delivers condensed water onto the rotating disc, the rotating disc driver drives the rotating disc to rotate so as to spray water onto the water atomization device to form water mist, and then the water mist is discharged by a smoke exhaust pipe so as to complete the treatment of the condensed water of a gas water heater. The present invention can achieve high water discharge efficiency and a high atomization ratio, and solve the problem of dripping of condensed water at the ports of the smoke exhaust pipes in the existing methods. In particular, the energy consumption of the condensed water discharge device of the present invention is low, and the condensed water discharge device is sufficiently driven by a reserved power supply of existing burners, thereby overcoming the problem in the prior art that an additional power supply is required when the structures such as a high-pressure nozzle are used.

Description

A condensate drain device and a condensing gas water heater and drainage method Technical Field

[0001] This invention belongs to the field of household appliance technology, specifically relating to a condensate draining device and a condensing gas water heater and drainage method. Background Technology

[0002] 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, thus 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. Since 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, making the water acidic. The disposal of this water is a problem that needs to be addressed.

[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 must be installed at the drain outlet, requiring frequent emptying by the user; or the water must be connected to other special drainage channels. These solutions, which increase installation costs and complexity, are unpopular, and there is an urgent need for a water removal solution that does not alter the main structure or installation method of the gas water heater.

[0004] Existing technologies disclose methods for forming water mist, which is intended to be discharged through a flue pipe. Specifically, existing technologies also disclose a water atomization emission device and a condensing gas water heater. A first row of fans is located below a sprinkler, and a second row of fans is located directly in front of the first row of fans and vertically distributed. Water droplets fall onto the blades of the first row of fans below, and the rotating blades turn the water droplets into ultra-fine mist droplets, forming water vapor that dissolves into the air. Under the action of the wind force of the second row of fans, the water vapor moves upward and enters the atomization emission pipe. Under pressure, the water finally enters the flue pipe and is discharged outdoors with the flue gas. The technical solution has flaws that prevent its application. The main problem in actual experiments is that the airflow generated by the two fans interferes with each other. In particular, in order to form the water droplets that fall on them into ultra-fine mist and to move the water vapor upward into the atomizing exhaust pipe, both fans need high power. This results in strong wind fields around the fans and mutual interference. In practice, it was found that water droplets could not fall effectively on the blades, and the small amount of water vapor formed was not easy to be discharged. Only a small amount of water vapor was seen at the exhaust pipe, while there was obvious backflow inside the casing, which made the structure unusable. Moreover, the two fans consume a lot of energy and require an additional power supply.

[0005] Therefore, it is necessary to develop a new structure that can effectively drain water from gas water heaters with low energy consumption and no need for additional power supply. Technical issues

[0006] Currently, existing technologies generally use condensate atomization to achieve condensate drainage in condensing gas water heaters. This involves using a high-pressure or high-speed gas source to drive the atomizing nozzle, creating a high-speed or high-pressure airflow that gradually breaks down acidic condensate into fine particles, which are then discharged outdoors through the flue. However, using a high-pressure or high-speed gas source consumes a significant amount of energy, contradicting the energy-saving design principles of condensing gas water heaters. Furthermore, during operation, the gas source equipment is often under high pressure, posing certain safety risks. Insufficient gas pressure can cause the atomized particles to gradually enlarge, severely affecting the atomization effect and the condensate drainage speed. In particular, existing gas heaters lack the built-in power supply to drive this process, requiring an external power source in the current structure. This limitation restricts the application of existing atomized drainage methods and has even drawn resistance from gas heater manufacturers.

[0007] Currently, most gas water heaters on the market require a pre-installed condensate drain outlet, a pre-installed drain pipe, and a separate connection to a floor drain during use; or a temporary water storage container is installed at the drain outlet, requiring users to empty the water frequently; or the water is connected to other special drainage channels. These solutions, which increase installation costs and complexity, are not popular.

[0008] Some solutions involve adding neutralizing agents to the water to neutralize acidic water before pumping it into the gas heater's tap water supply for domestic use. However, the neutralized water may still contain acidic, alkaline, or other chemical components, which can harm users, causing allergies, skin irritation, or burns. Furthermore, neutralizing agents are consumables; their performance changes with use of condensing gas water heaters, requiring periodic addition or replacement. Otherwise, the water will remain acidic, posing a risk.

[0009] Other solutions use electric heating or combustion heating for acidic condensate, or other methods to make the condensate evaporate. These solutions either require a large amount of energy, violating the energy-saving goals of condensing gas water heaters, or the condensate drainage rate is too slow to match the rate at which condensate is generated, thus rendering them impractical.

[0010] Therefore, in response to the above problems and technical requirements, it is necessary to improve the existing condensate drainage device. Technical solutions

[0011] To address the aforementioned problems, the present invention aims to provide a condensate draining device, a condensing gas water heater, and a drainage method, which can safely and reliably drain the water generated by the liquefaction of water vapor in combustion exhaust gas.

[0012] This invention utilizes a water pump to achieve high efficiency in condensate delivery, which is better than solutions without a water pump. It improves the atomization and discharge efficiency of condensate. Unexpectedly, this invention solves the problem of condensate dripping at the exhaust pipe port, which is impossible to achieve with other structures. In particular, the condensate discharge device of this invention has low energy consumption and can be driven by the existing power supply reserved in the gasifier, overcoming the problem that existing technologies using high-pressure nozzles and other structures require additional power supply.

[0013] This invention utilizes a self-priming atomizing structure, which occupies little space, has low cost, and offers high water atomization and discharge efficiency. In particular, the drive equipment for the rotating disc has low energy consumption, requiring less power reserve from the gasifier compared to water pumping. Most importantly, the self-priming atomizing structure atomizes water vapor from the combustion exhaust gas, resulting in water that is then discharged through the flue pipe. This high atomization effect avoids problems caused by water containing acidic substances, and the water diffuses quickly and can be diluted by air.

[0014] This invention can effectively drain water from gas water heaters with low energy consumption and no need for additional power supply; in particular, no additional water delivery power equipment is needed, the water pipe allows water to flow by gravity to the rotating plate, which takes into account water removal efficiency and low energy consumption, and also reduces consumable costs, and can completely drain water.

[0015] The technical solution adopted in this invention is as follows.

[0016] A condensate discharge device includes a rotating disc, a water delivery device, a rotating disc driver, and a water atomizing device; the rotating disc is connected to the rotating disc driver; the water atomizing device is located at the edge or outer side of the rotating disc; the water outlet of the water delivery device is located at the rotating disc; the water delivery device includes a water supply pipe, or the water delivery device includes a water supply pipe and a water collector, or the water delivery device includes a self-priming device.

[0017] In this invention, the condensate discharge device includes a rotating disk, a water delivery device (also referred to as a water conveying structure), a rotating disk driver (also referred to as a first driving device), and a water atomizing device (also referred to as a water collision device); the rotating disk is connected to the first driving device (driven to rotate by it), the water atomizing device is located on the edge or outside of the rotating disk, and the water conveying structure is connected to the water collection chamber of the condenser.

[0018] A gas water heater includes a condenser, a flue pipe, and the aforementioned condensate discharge device.

[0019] The gas water heater of this invention is a condensing gas water heater. As is common knowledge, a gas water heater has a combustion chamber, and the high-temperature exhaust gas generated during operation is used to preheat cold water through a condenser. The flue pipe is an external pipe, which are all conventional components of a gas water heater. The exhaust gas inside the gas water heater is discharged outdoors through the flue pipe, and the condensate drain device is used to convert the water produced by the condenser into water mist, which is discharged outdoors along with the exhaust gas.

[0020] In this invention, the condenser includes a condensate chamber (also referred to as a water tank or water collection chamber) and condenser tubes, which is an existing structure; in the condensate discharge device, the water inlet of the water supply equipment is connected to the condensate chamber of the condenser, and the water outlet is located at the rotating disc; specifically:

[0021] When the water delivery equipment includes a water pipe and a water collector, the water collector is provided with an inlet and an outlet. The inlet is connected to the condensate chamber of the condenser by the water pipe, and the outlet is connected to the rotating plate by the water pipe.

[0022] When the water delivery equipment includes a water pipe, one end of the water pipe is connected to the condensate chamber of the condenser, and the other end is placed above the rotating disk.

[0023] When the water delivery equipment includes a self-priming device, one end of the self-priming device is located on the lower surface of the rotating disk and communicates with the rotating disk, and the other end is located in the condensate chamber of the condenser.

[0024] In this invention, when the water delivery device includes a water pipe and a water collector, the water collector is provided with an inlet and an outlet, and the inlet and / or outlet are respectively connected to the water pipe; when the water delivery device includes a water pipe, one end of the water pipe is connected to condensate, and the other end is placed above the rotating disk; when the water delivery device includes a self-priming device, the self-priming device is located below the rotating disk and is connected to the rotating disk.

[0025] In this invention, the water dispenser includes a water pump. Preferably, the water pump is used as the water dispenser and is provided with an inlet and an outlet. The inlet and / or outlet are respectively connected to a water supply pipe to transport the condensate formed by the gas water heater in the condensate chamber to the rotating disc through the water supply pipe.

[0026] In this invention, when the water supply device is a self-priming device, the condensate discharge device can be called a self-priming atomizing structure. It is located inside or outside the condensing chamber and forms a gas communication structure with the exhaust pipe. It can atomize the water generated by liquefying water vapor in the combustion exhaust gas and then discharge it through the exhaust pipe. One end of the self-priming device is located on the lower surface of the rotating disk and is connected to the rotating disk, while the other end is located inside the water tank.

[0027] In this invention, the self-priming device has a hollow structure, with one end located on the lower surface of the rotating disk and connected to the rotating disk. It can deliver the absorbed water to the rotating disk. Generally, the absorbed water is delivered to the upper surface of the rotating disk and then thrown out with the rotating disk. In practical applications, the absorbed water can also be delivered to other positions on the rotating disk, as long as the water can be thrown out with the rotating disk.

[0028] In this invention, the self-priming device has a columnar, conical, or frustum-shaped structure. Water is drawn from one end of the hollow self-priming device to the other end (i.e., onto the rotating disk). The specific structure of the self-priming device can be designed according to actual needs. A columnar structure generally refers to a structure with the same size from top to bottom, such as a cylinder or square column. A conical structure generally refers to one end being significantly smaller than the other end and nearly a single point (as is common knowledge, this end is open rather than closed to achieve water absorption). A frustum-shaped structure generally refers to one end being smaller than the other end and clearly open, which can be understood as a trumpet shape. Preferably, the area of ​​the end face of the self-priming device near the rotating disk is greater than or equal to the area of ​​the other end face (opposite end face), which facilitates the self-priming device's absorption of water under the self-priming force generated by the rotation of the rotating disk.

[0029] In this invention, the self-priming device and the rotating disk are coaxial, meaning that their central axes are the same. This allows the self-priming device to obtain the maximum self-priming force and ensures that the absorbed water is delivered to the center of the rotating disk.

[0030] In this invention, the rotating disc may be open or closed. When the water delivery device is a self-priming device, an open structure is preferred, as it can better receive the water drawn by the self-priming device. Naturally, the self-priming device is connected to the opening and draws water to the opening.

[0031] In this invention, water in the condenser tank is drawn onto the rotating disk by a self-priming device. The rotating disk driver drives the rotating disk to rotate, generating a self-priming force. Water is thrown out with the rotating disk and collides with the water atomizing device, thus transforming into water mist. There is no need to set up high-energy-consuming atomizing equipment such as an air source. The efficient atomization and discharge of water can be achieved simply by using the rotating disk driver to drive the rotating disk, which is in line with the original intention of the gasifier energy-saving design.

[0032] In this invention, when the water delivery structure is a water pipe or a water pipe equipped with a conventional valve, one end of the water pipe is connected to the water collection chamber of the condenser, and the other end is placed above the rotating disk. In practical applications, the shape and structure of the water pipe are not specifically limited, as long as water can flow onto the rotating disk by gravity without the need for a rotating disk driver, thereby reducing energy consumption and achieving energy-saving effects. Water in the condenser's water collection chamber is delivered to the rotating disk through the water delivery structure. The rotating disk driver drives the rotating disk to rotate, and the water is ejected with the rotating disk, colliding with the water atomizing device and thus transforming into water mist. There is no need to set up high-energy-consuming equipment such as a gas source; the atomization function can be achieved simply by rotating the disk, which is in line with the energy-saving design intention of gas water heaters. In particular, the mechanism of the rotating disk combined with the water atomizing device in this invention has low power requirements for the driving equipment, which can be met by the power supply of existing conventional water heaters, eliminating the need for an additional power supply.

[0033] In this invention, the condensate discharge device and the flue pipe are connected by gas. The water collector transports the condensate generated by the gas water heater in the condensate chamber to the rotating disk through the water supply pipe. The rotating disk driver drives the rotating disk to rotate, spraying water onto the water atomizing device to form water mist, which is then discharged through the flue pipe.

[0034] In this invention, the condensate drain device is located inside or outside the condenser, or a portion of the condensate drain device is located inside the condenser.

[0035] In this invention, the condensate drain device and the flue pipe are connected in a gaseous manner.

[0036] In this invention, the condensing gas water heater also includes an exhaust pipe, which is connected to the flue pipe; the water atomizing device is partially or entirely located inside the exhaust pipe.

[0037] In this invention, the condensing gas water heater also includes a combustion chamber.

[0038] In this invention, when the condensate discharge device is located outside the condenser, it also includes an exhaust pipe connected to the flue pipe, forming a gas connection between the condensate discharge device and the exhaust pipe, and water mist is discharged through the exhaust pipe and then through the flue pipe; when the condensate discharge device is located inside the condenser, it also includes an exhaust pipe connected to the flue pipe, forming a gas connection between the condensate discharge device and the exhaust pipe, and water mist is discharged through the exhaust pipe and then through the flue pipe; when the condensate discharge device is partially located inside the condenser, it also includes an exhaust pipe connected to the flue pipe, forming a gas connection between the condensate discharge device and the exhaust pipe, and water mist is discharged through the exhaust pipe and then through the flue pipe.

[0039] In this invention, one end of the exhaust pipe is connected to the flue pipe, and the other end is located at the condensate discharge device. The water mist generated by the collision is discharged from the flue pipe through the exhaust pipe.

[0040] Preferably, when an exhaust pipe is present, the water atomizing device is partially or entirely located inside the exhaust pipe, which facilitates the formation of water mist through the exhaust pipe into the smoke exhaust pipe, allowing the water mist to be discharged more effectively from the smoke exhaust pipe.

[0041] In practical applications, the condensate drain device can be fixed horizontally or vertically inside the exhaust pipe. This invention does not impose specific limitations, and those skilled in the art can choose according to actual needs. With the action of the combustion control fan in the gas water heater, this invention eliminates the need for an additional fan, allowing water mist to be discharged from the exhaust pipe through the flue. This invention not only balances water removal efficiency and low energy consumption but also reduces consumable costs. In particular, it solves the problem of mutual interference between multiple airflow fields in existing technologies, and especially does not affect the combustion control fan.

[0042] In this invention, the rotating disk surface in the condensate discharge device is either smooth or grooved, with the grooves forming water flow channels. Preferably, the rotating disk surface is smooth. In the prior art, the grooves on the rotating disk surface, also known as concave-convex structures or flow guides, are generally considered to provide a channel for accelerated flow of condensate. This invention does not employ conventional techniques but achieves better technical results by using a smooth rotating disk to create a water film, which is unexpected. In actual production, the structure of the rotating disk is not specifically limited and can be a disc structure, cylindrical structure, conical structure, frustum structure, inverted conical structure, or inverted frustum structure. It can be a single-layer structure, a multi-layer (e.g., 2-3 layers) structure, or other structures, without affecting the understanding of the technical effects of this invention by those skilled in the art.

[0043] Preferably, the side (side surface) of the rotating disk is a sloping structure. As is common knowledge, a sloping side of the rotating disk means that the side surface has an angle with the horizontal plane. The angle between the sloping structure and the horizontal plane is between 0 and 90°, preferably between 0 and 80°, even more preferably between 0 and 60°, between 5 and 70°, even more preferably between 10 and 60°, even more preferably between 10 and 50°, most preferably between 20 and 50°, and even more preferably between 20 and 40°. In practical applications, the structure of the rotating disk body is not specifically limited. For example, it can be a column structure with equal upper and lower dimensions (such as a cylindrical structure) or a column structure with different upper and lower dimensions. Generally, the cross-section of the rotating disk body is circular, and it can be a bowl-shaped structure, a cylindrical structure, a disc structure, a frustum structure or an inverted frustum structure, a conical structure or an inverted conical structure, a single-layer or multi-layer structure (such as a 1-5 layer structure), or other structures, as long as it can receive water and rotate to spray water out to collide with the water atomizing device, thereby transforming it into water mist.

[0044] In this invention, the side surface itself can be a planar structure or a non-planar structure, such as an arc-shaped structure. The function of the rotating disk is to throw the collected water out through the water atomizing device, thereby transforming it into water mist. This structure can achieve both water collection and water throwing.

[0045] In this invention, the water atomizing device includes spaced columns and a structure for fixing columns. Preferably, the water atomizing device is a grid (also called a grating), such as an annular grid structure. As an example, the water atomizing device includes spaced columns and an annular component for fixing columns. The spaced columns are multiple and form an annular structure. On the outside of the rotating disk, the rotating disk receives water and rotates to eject the water, which collides with the water atomizing device, thereby transforming it into water mist.

[0046] In this invention, the grid includes upper and lower fixing members and intermediate grid strips. Adjacent grid strips are spaced apart to form a grid structure, i.e., the grid structure includes fixing rings and fixedly spaced columns. As an example, the width (outer diameter) of the grid strips (columns) is 1-10 mm, preferably 2-9 mm, more preferably 3-8 mm, and even more preferably 4-6 mm; the height depends on the space, and the included angle between adjacent grid strips is 5-30°, preferably 10-25°, and even more preferably 12-20°. In practical applications, the structure of the water atomizing device is not specifically limited and can be a cylinder, a frustum, or other structures. The grid strips in the grid can be vertical columnar structures or oblique columnar structures, without affecting the understanding of the technical effects of this invention by those skilled in the art.

[0047] This invention discloses the application of the above-mentioned condensate discharge device in the treatment of condensate in gas water heaters, specifically, the application of the above-mentioned condensate discharge device in the discharge of condensate from gas water heaters, and in particular, the application of the above-mentioned condensate discharge device in the atomized discharge of condensate from gas water heaters.

[0048] This invention discloses a method for treating condensate from a gas water heater using the aforementioned condensate discharge device, comprising the following steps: a water supply device delivers condensate to a rotating disc, a rotating disc driver drives the rotating disc to rotate, spraying water onto a water atomizing device to form water mist, which is then discharged through the exhaust pipe, thus completing the drainage of condensate from the condensing gas water heater.

[0049] In this invention, when the water delivery device includes a water supply pipe and a water collector, the water collector delivers the condensate generated by the gas water heater in the condensate chamber to the rotating disk through the water supply pipe. The rotating disk driver drives the rotating disk to rotate, spraying water onto the water atomizing device to form water mist, which is then discharged through the exhaust pipe. When the water delivery device includes a water supply pipe, when the gas water heater is working, the water produced by the condenser flows to the rotating disk through the water supply pipe. The rotating disk driver drives the rotating disk to rotate, and the water is sprayed out and collides with the water atomizing device to form mist, which is then discharged through the exhaust pipe. When the water delivery device includes a self-priming device, the self-priming device draws in the condensate generated by the gas water heater in the condensate chamber and delivers it to the rotating disk. The rotating disk driver drives the rotating disk to rotate, spraying water onto the water atomizing device to form water mist, which is then discharged through the exhaust pipe.

[0050] In this invention, the condensate in the condensate chamber of the condenser is delivered to the rotating disk by a water delivery device. The rotating disk driver drives the rotating disk to rotate, and the condensate is ejected with the rotating disk, colliding with the air and water atomizing device, thereby transforming into water mist. There is no need to set up high-energy-consuming equipment such as gas source. The efficient atomization and discharge of condensate can be achieved by simply using the rotating disk driver to drive the rotating disk, which reduces the energy consumption of gas water heaters.

[0051] Furthermore, the water inlet of the water supply device is connected to the condensate chamber of the condenser via a water supply pipe, and the water outlet is located at the rotating disk via a water supply pipe, specifically above the rotating disk. Preferably, the diameter of the water supply pipe at the water outlet is smaller than the diameter of the water supply pipe at the water inlet to increase the water flow pressure and accelerate the discharge of condensate.

[0052] Furthermore, the water atomizing device can be a fixed installation structure or a movable installation structure. Preferably, the water atomizing device is a fixed installation structure. A fixed installation structure means the water atomizing device is stationary, while a movable installation structure means the water atomizing device is movable. The movable installation structure can be installed on the edge of the rotating disk, or it can be driven by an additional rotating disk driver (a second rotating disk driver). In actual production, the structure of the water atomizing device is not specifically limited; it can be a cylinder, a frustum, or other structure. The column can be a vertical column or an angled column. The column can be a cylinder, a square column, or other prism, without affecting the understanding of the technical effects of the present invention by those skilled in the art.

[0053] Preferably, the water atomizing device is a fixed installation structure. Water ejected from the rotating disk collides with the water atomizing device and is transformed into water mist. The fixed installation structure of the water atomizing device avoids the generation of airflow, which would affect the atomization effect.

[0054] Preferably, the rotary disk driver is also equipped with fan blades. The rotary disk driver drives both the rotary disk and the fan blades to rotate simultaneously, with the fan blades used to accelerate the discharge speed of water mist and improve the discharge efficiency of condensate.

[0055] In this invention, the condensate chamber of the condenser may also be equipped with a filter and a water level sensor. The filter is used to filter impurities in the condensate to prevent clogging of the water inlet of the water supply equipment; the water level sensor is used to measure the height of the condensate in the condensate chamber of the condenser. A height value can be set, and when there is a lot of condensate, the rotation speed of the rotating disc is increased to improve the condensate discharge efficiency. Beneficial effects

[0056] (1) The present invention uses a water pump to pump condensate onto a rotating disk. The rotating disk rotates and sprays water onto a water atomizing device to form water mist, which is then discharged through the flue pipe to complete the treatment of condensate from the gas water heater. This solves the problem that the existing technology requires an auxiliary fan to achieve better drainage efficiency. This technical solution only requires a low-power motor combined with a small water pump to achieve the technical effect of pumping water and swirling water collision. The electrical power is less than the 40W reserved by conventional gas water heaters, so there is no need to add an extra power supply. This solves the problem that the existing technology requires an extra power supply.

[0057] (2) This invention, by setting a self-priming atomization structure, transforms water into water mist for discharge. The self-priming atomization structure consists of a rotating disc, a self-priming device, a rotating disc driver, and a water atomizing device. It eliminates the need for high-energy-consuming equipment such as gas source nozzles, achieving atomization simply by rotating the disc, thus aligning with the energy-saving design principles of condensing gas water heaters. Compared to water pumping, it places lower demands on the gasifier's pre-installed power supply. Most importantly, the self-priming atomization structure atomizes water vapor from combustion exhaust gas and discharges it through the flue pipe. This high atomization effect avoids problems caused by acidic water, and the water diffuses quickly and can be diluted by air.

[0058] (3) This invention uses a water pipe as a water conveying component to convert water into water mist for discharge. The water removal module does not require high-energy-consuming equipment such as a gas source; it only needs to rotate a rotating disc to achieve the atomization function, which is in line with the energy-saving design intention of gas water heaters. According to the water output, the rotation speed of the rotating disc can be adjusted in real time to obtain atomized particles of different sizes, thereby achieving different atomization effects, making it more flexible and reliable in practical applications. This technical solution can atomize and discharge the water in the water collection chamber, with an atomization rate of over 90%, effectively alleviating the dripping phenomenon that exists when existing atomization equipment is used for water removal in gas water heaters, and avoiding environmental problems caused by water dripping. This invention can effectively discharge water from gas water heaters with low energy consumption, requiring no additional power supply. In particular, the motor of this invention is less than 30W, which has good applicability to gas water heaters and low requirements for the power supply reserved in the water heater.

[0059] (4) The water pump pumping water swirling collision atomization method obviously achieves high drainage efficiency, which is the highest in the current experiment. Moreover, the atomization ratio is unexpectedly close to 100%, and no dripping phenomenon is observed at the exhaust pipe outlet. In particular, under the harsh test conditions of the exhaust pipe tilting upward at a certain angle, the drainage efficiency is still high, and the phenomenon of condensate dripping on the outer surface of the building and causing corrosion to the outer surface of the building is avoided.

[0060] (5) When the condensate drain device disclosed in this invention is used, there is no limitation on the installation method. It can be installed horizontally or vertically. In addition, the structure of this invention is almost unaffected by the reserved space of the gas water heater, that is, it can be adapted to the structure of the gas water heater itself. This is the key to the practical application of this structure. The structure of this invention can be entirely or partially inside (outside) the condenser, or partially or entirely near or above the condenser pipe. In other words, the installation of the structure of this invention can be handled according to the existing structure of the water heater, and the fit is good. This is an advantage that other structures do not have.

[0061] (6) Most existing atomizing nozzles are designed for plant protection technology. When combined with gasifier drainage, they have low drainage efficiency and small atomization ratio, resulting in dripping at the exhaust pipe. This invention adopts a new structure. The water in the condenser tank is self-suctioned to the rotating disk by a self-suction device. The rotating disk driver drives the rotating disk to rotate to form a self-suction force. The water is thrown out with the rotating disk and collides with the water atomizing device, thus turning into water mist. The water atomization and discharge efficiency is high, which effectively alleviates the dripping problem of the existing drainage structure.

[0062] (7) The condensate drain device of the present invention does not require the installation of high-pressure gas source or other high-energy-consuming equipment. It can achieve the atomization function by simply rotating the rotating disc, which is in line with the original intention of energy-saving design of condensing gas water heater. The installation method of the present invention is the same as that of traditional gas water heater. Users do not need to add additional drainage pipes or change the original water and electrical pipe decoration. Attached Figure Description

[0063] Figure 1 is a schematic diagram of the condensate drain device in Embodiment 1.

[0064] Figure 2 is a physical diagram of the water atomizing device in Embodiment 1.

[0065] Figure 3 is a schematic diagram of the water atomizing device in Embodiment 1.

[0066] Figure 4 is a schematic diagram of the 30-degree rotating disk structure in Embodiment 1.

[0067] Figure 5 is a schematic diagram of the gas water heater structure in Embodiment 2.

[0068] Figure 6 is a schematic diagram of the condensate drain device in Example 3.

[0069] Figure 7 is a top view of the rotating disk in Embodiment 4.

[0070] Figure 8 is a schematic diagram of the rotating disk structure in Embodiment 5.

[0071] Figure 9 is a schematic diagram of the rotating disk structure of Embodiment 9.

[0072] Figure 10 is a schematic diagram of the rotating disk structure of Embodiment 10.

[0073] Figure 11 is a front view of the water atomizing device of Embodiment Twelve.

[0074] Figure 12 is a front view of the water atomizing device of Embodiment Thirteen.

[0075] Figure 13 is a schematic diagram of the gas water heater structure of Embodiment 15.

[0076] Figure 14 shows the state of the simulation experiment in Comparative Example 1.

[0077] Figure 15 is a simulation experiment diagram of Example 1.

[0078] Figure 16 is a schematic diagram of the self-priming atomizing structure of Example 17.

[0079] Figure 17 is a schematic diagram of the inverted conical rotating disk structure.

[0080] Figure 18 is a schematic diagram of a double-layered inverted frustum-shaped rotating disk structure.

[0081] Figure 19 is a schematic diagram of the water atomization device.

[0082] Figure 20 is a physical diagram of the water atomizing device in Example 17.

[0083] Figure 21 is a schematic diagram of the condensing gas water heater of Embodiment 18.

[0084] Figure 22 is a schematic diagram of the condensing gas water heater of Embodiment 18.

[0085] Figure 23 is a top view of the rotating disk in Embodiment 20.

[0086] Figure 24 is a schematic diagram of the self-priming atomizing structure of Example 23.

[0087] Figure 25 is a schematic diagram of the water removal module structure in Example 24.

[0088] Figure 26 is a schematic diagram of the gas water heater structure in Example 24.

[0089] Figure 27 is a structural schematic diagram of the gas water heater of Example 24 (with flue gas illustration).

[0090] Figure 28 is a schematic diagram of the 30-degree rotating disk structure in Example 24.

[0091] Figure 29 shows schematic diagrams of different rotating disk structures.

[0092] Figure 30 is a schematic diagram of the water atomizing device in Example 24.

[0093] Figure 31 is a physical diagram of the water atomizing device in Example 24.

[0094] Figure 32 is a schematic diagram of the uneven structure on the surface of the rotating disk in Example 25.

[0095] Figure 33 is a schematic diagram of the water removal module structure in Example 36. Embodiments of the present invention

[0096] 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, thus 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 condensate in the condenser. Since 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 condensate, making the condensate acidic. The proper disposal of this condensate is a problem that needs to be addressed.

[0097] In this invention, the condensate discharge device consists of a rotating disc, a water delivery device, a rotating disc driver, and a water atomizing device; the rotating disc is connected to the rotating disc driver; the inlet of the water delivery device is connected to the condensate chamber of the condenser, and the outlet is located at the rotating disc; the water delivery device is a water pump connected to a water delivery pipe.

[0098] In this invention, the rotating disc, also known as a swirling disc or a rotating plate, functions to rotate and eject water. The water atomizing device, also known as a condensate dispersing device or a water collision device, functions to form water into micro-droplets. The exhaust pipe, also known as an exhaust pipe, is a component integrated into existing gas water heaters. The condensate discharge device, also known as a water removal module, functions to collide condensate to form water mist, which is then discharged from the exhaust pipe. The water delivery equipment, also known as a water conveying structure, functions to transport the condensate from the condenser to the rotating disc.

[0099] In the condensate draining device of the present invention, the surface of the rotating disk is a smooth structure, or the side (side edge) of the rotating disk is an inclined structure; the angle between the inclined structure and the horizontal plane is 0 to 60 degrees.

[0100] In this invention, the first driving device (i.e., the rotary disk driver) and the second driving device are devices capable of rotating the rotary disk or the water atomizing device, such as a motor. Preferably, the first driving device is also equipped with fan blades, which are located on the shaft of the first driving device and below the rotary disk to accelerate the emission of water mist. The shape and position of the fan blades ensure that they do not interfere with the operation of the combustion control fan. In particular, the structure of this invention has low power requirements for the driving devices, and the power supply of existing conventional water heaters can meet the requirements, eliminating the need for an additional power supply.

[0101] In this invention, the water atomizing device includes spaced-apart columns and a structure for fixing the columns. As an example, the water atomizing device includes spaced-apart columns and a ring-shaped component for fixing the columns. Preferably, the water atomizing device consists of a ring and its fixed, spaced-apart columns. More preferably, there are 1 to 10 rings. The spaced-apart columns are multiple, forming a ring structure on the outside of a rotating disk. The rotating disk receives water and rotates to eject the water, causing it to collide with the water atomizing device and thus transform into water mist. The column width (outer diameter) is 1 to 10 mm, preferably 2 to 9 mm, more preferably 3 to 8 mm, and even more preferably 4 to 6 mm; the height depends on the available space, and the angle between adjacent columns is 5 to 30°, preferably 10 to 25°, and even more preferably 12 to 20°.

[0102] In this invention, the condenser is used to preheat cold water, and the flue pipe is an external pipe, a conventional component of a gas water heater. Exhaust gas from the gas water heater is discharged outdoors through the flue pipe. The condensate drain device is used to convert the condensate produced by the condenser into water mist, which is then discharged outdoors along with the exhaust gas. When the condensate drain device is located outside the condenser, it preferably also includes an exhaust pipe connected to the flue pipe. More preferably, the water atomizing device is partially or entirely located inside the exhaust pipe, facilitating the formation of water mist that enters the flue pipe through the exhaust pipe.

[0103] 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. The rotary disc driver used in the present invention is a motor (existing product, 27W), and the water pump is 6W, with a total power of less than 40W. No additional power supply is required, and the reserved power supply of a conventional gas water heater can meet the requirements.

[0104] 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. The terminology used in this specification 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 for ease of description only, and should not be construed as limiting the technical solution.

[0105] As is common knowledge, the condensing gas water heater of this invention has the basic components and structure of a conventional gas water heater, such as a central controller, water pipes, combustion chamber, heat exchanger, and combustion control fan. The connection methods between the specific components and the control methods of the central controller are conventional technologies. The rotary disk drive can be controlled by the central controller to open, close, and adjust its size, which is also a conventional technology.

[0106] Preferably, the condenser tank is equipped with a filter and a water level sensor. The filter is used to remove impurities from the water to prevent clogging of the water inlet of the water supply equipment (including the self-priming device); the water level sensor is used to measure the water level in the condenser tank. The manufacturer can set a height value, and when there is more water, the rotation speed of the rotating disc will be increased to improve the water discharge efficiency.

[0107] As is common knowledge, a sloping side of the rotating disk means that the side forms an angle with the horizontal plane, with the angle ranging from 0 to 90°, preferably 10 to 80°, even more preferably 20 to 60°, then 20 to 50°, and even more preferably 20 to 45°. Furthermore, the side itself can be a planar or non-planar structure, such as an arc shape. The function of the rotating disk is to eject the collected water through a water atomizing device, transforming it into water mist. A structure that can both collect and eject water is sufficient.

[0108] This invention discloses a condensate drain device and a condensing gas water heater including the device. The condensate drain device consists of a rotating disc, a water delivery device, a vortex disc driver, and a water atomizing device. The rotating disc is connected to the vortex disc driver. The inlet of the water delivery device is connected to the condensate chamber of the condenser, and the outlet is located at the rotating disc. The water delivery device is a water pump connected to a water supply pipe. The following embodiments one to sixteen are used to describe this technical solution in detail. Example 1

[0109] Referring to Figure 1, a condensate discharge device consists of a rotating disc 1, a water delivery device 2, a rotating disc driver 3, and a water atomizing device 4; the water delivery device is a water pump, with water pipes connected to its inlet and outlet respectively; the rotating disc driver is a motor; the water atomizing device consists of upper and lower rings and fixed vertically spaced triangular prisms (outer diameter 4mm), as shown in Figures 2 and 3.

[0110] The rotating disc is mounted on the motor shaft, and a water atomizing device is fixedly installed on its outer side; the water outlet of the water pump is located on the rotating disc, and the water inlet of the water pump is used to draw water from the condensate chamber.

[0111] The rotating disk surface (water contact surface) has a smooth structure, the body is an inverted cone, the apex is mounted on the motor shaft, the angle between the side of the rotating disk and the horizontal plane is 30°, as shown in Figure 4, where the degree is given to facilitate understanding by those skilled in the art, and the surface is open. Example 2

[0112] Referring to Figure 5, a gas water heater, which is a condensing gas water heater, includes a conventional condenser 5, a flue pipe 6, and a condensate discharge device as described in Embodiment 1, and also includes an exhaust pipe 7; in the condensate discharge device, the water outlet of the water pump is connected to the water pipe outlet located on the rotating plate, and the water inlet of the water pump is connected to the condensate chamber of the condenser, and the water in the condensate chamber of the condenser is pumped to the rotating plate by the water pump through the water pipe.

[0113] The condensate drain device is located inside the condenser. The motor and water atomizing device are respectively installed in one end of the exhaust pipe via supports. The supports and installation method are conventional techniques, which can fix the motor and water atomizing device. During operation, the water atomizing device does not move. The water in the condensate chamber is drawn to the rotating disk through the water pipe and water pump. The water is thrown out by the rotating disk driven by the motor and collides with the column, thus turning into water mist. The exhaust pipe and the flue pipe are connected, and the water atomized from the liquefaction of water vapor in the combustion exhaust gas is discharged through the flue pipe. Example 3

[0114] Furthermore, based on the aforementioned condensate drain device, a filter 8 can be installed in the condensate chamber of the condenser to filter impurities in the condensate and prevent clogging of the water inlet of the water supply equipment. See Figure 6.

[0115] Furthermore, based on the aforementioned condensate drainage device, a water level sensor can be installed in the condensate chamber of the condenser to measure the height of the condensate in the condensate chamber. The manufacturer can set a height value, and when there is a lot of condensate, the rotation speed of the rotating disc will be increased to improve the condensate drainage efficiency. Example 4

[0116] Based on Embodiment 1, the surface of the rotating disk (water-receiving surface) is provided with grooves (the rest are the same). See Figure 7, which is a schematic diagram of the groove structure on the surface of the rotating disk, a series of radial channels extending from the center to the edge of the disk. Example 5

[0117] Based on Example 1, the rotating disk has a bowl-shaped structure (the rest is the same), see Figure 8. Example 6

[0118] Based on Example 1, the angle between the side of the rotating disk and the horizontal plane is 20 degrees (the rest are the same). Example 7

[0119] Based on Example 1, the angle between the side of the rotating disk and the horizontal plane is 45 degrees (the rest are the same). Example 8

[0120] Based on Example 1, the angle between the side of the rotating disk and the horizontal plane is 60 degrees (the rest are the same). Example 9

[0121] Based on Embodiment 1, the rotating disk structure is as shown in Figure 9, and the rest is the same. Example 10

[0122] Based on Example 1, the rotating disk has a double-layer sandwich structure, as shown in Figure 10, and the rest is the same. Example 11

[0123] Based on Embodiment Nine, the rotating disk structure is a double-layer sandwich structure, and the rest are the same. Example 12

[0124] Based on Example 1, the triangular prism is tilted, as shown in Figure 11, and the rest is the same. Example 13

[0125] Based on Example 1, the water atomizing device is shown in Figure 12, and the rest is the same. Example 14

[0126] Based on Embodiment 1, a fan blade 9 is also provided on the motor shaft, and the rest is the same, in order to accelerate the emission speed of exhaust gas and water mist. Example 15

[0127] Based on Example 2, the condensate drain device is vertically installed inside one end of the exhaust pipe, as shown in Figure 13, and the rest is the same.

[0128] In practical applications, the rotating disk can have a bowl-shaped structure, an inverted cone structure, an inverted frustum structure, a double-layered inverted cone sandwich structure, or a double-layered inverted frustum sandwich structure. Alternatively, the aforementioned structures (larger at the top and smaller at the bottom) can be reversed to form a rotating disk that is smaller at the top and larger at the bottom, with or without an opening on the surface; this is merely an example. When the rotating disk has a double-layered structure, both disks can receive water jets. In practical applications, the structure of the water atomizing device is not specifically limited; it can be a cylinder, a cone, or other structures. The column can be a vertical column or an angled column, without affecting the understanding of the technical effects of the invention by those skilled in the art.

[0129] As is common knowledge, the gasifier of this invention has the basic components and structure of a conventional gasifier, such as a central controller 10, a water pipe 11, a combustion chamber 12, a heat exchanger 13, and a combustion control fan 14. The connection methods between specific components and the control methods of the central controller are conventional technologies. Some conventional components are not shown in this invention, and those skilled in the art can make conventional selections based on the technical concept of this invention. The central controller can control the on / off state and speed of the combustion control fan, and can control the on / off state and speed of the motor and water pump, which are conventional technologies. The filter and water level sensor themselves, as well as their installation and use, are conventional technologies. The connection method between the exhaust pipe and the flue pipe is a conventional technology, such as sleeve, adhesive, or welding, which does not affect the realization of the technical effect of this invention. In the embodiment, the upper end of the exhaust pipe is welded to the flue pipe, or the flue pipe is inserted into the upper end of the exhaust pipe. Comparative Example 1

[0130] Prior art discloses a gas water heater atomizing drainage structure, which atomizes water by setting a conventional high-pressure atomizing nozzle (68.4W) and an auxiliary fan (14.4W) to accelerate the water mist out of the flue pipe to achieve the purpose of water discharge. Compare with Example 1

[0131] The commercially available atomizing nozzles for plant protection machines that have received good reviews are characterized by better atomization effects, making them suitable for fog cannons and pesticide spraying. However, when combined with water dewatering in water heaters, experiments show that the effect is not good.

[0132] Experimental Method: Under laboratory conditions, 1.3L of water was added to the condensate chamber for 20 minutes. Only the water heater combustion control fan, motor (maximum speed), water pump (if any), and auxiliary fan (if any) were activated. A small bucket was placed below the exhaust pipe (horizontally placed) outlet to collect dripping water (this is a problem with existing technology). The water removal characteristics of each structure are shown in Table 1. In this invention, the rotating disk rotates, water is ejected and collides with the water atomization device to form mist, which is discharged from the exhaust pipe. It not only has high emission efficiency but also a high atomization ratio during the emission process. Atomization ratio = (1 - water collected at the exhaust pipe outlet) / water removed × 100%; water removed = 1.3 - water remaining in the collection chamber; the unit of water above is L.

[0133] Table 1. Condensate Treatment Results

[0134]

[0135] During the experiment, when the structure of Example 1 was installed in the gasifier to simulate working drainage, no water dripping was observed at the exhaust pipe opening, but a water film was present on the outer wall. After the experiment, the water was collected and measured to calculate the atomization ratio. However, even with the auxiliary fan present, Comparative Example 1 still showed water dripping, as shown in Figure 14.

[0136] Furthermore, the exhaust pipe outlet was tilted upwards at 15°, and experiments were conducted on Example 1 and other examples. The water removal characterization of each structure is shown in Table 2.

[0137] Table 2 Condensate Treatment Results

[0138]

[0139] During the experiment, when the structure of Example 1 was installed in the gasifier to simulate working drainage, no water dripping was observed at the flue gas outlet (see Figure 15). The condensate discharge efficiency of the rotating disk and water atomizing device of the other structures was 900~1200mL / h.

[0140] The water pump of this invention achieves significantly high drainage efficiency through swirling water collision and atomization, which is the highest in current experiments. Moreover, the atomization rate is unexpectedly close to 100%, and no dripping phenomenon was observed at the exhaust pipe outlet. In particular, under the harsh test conditions of the exhaust pipe being tilted upward at a certain angle, the drainage efficiency remains high, and the phenomenon of condensate dripping onto the exterior surface of the building and causing corrosion to the exterior surface of the building is avoided. Example 16

[0141] This invention discloses a method for treating condensate from a gas water heater using the aforementioned condensate drain device, comprising the following steps:

[0142] (1) When the gas water heater starts working, the tap water passes through the condenser and enters the heat exchanger. The natural gas heats the heat exchanger to heat the cold water and at the same time generates high-temperature flue gas.

[0143] (2) The high-temperature flue gas enters the condenser under the action of the combustion control fan for cold water preheating. The water in the high-temperature flue gas is cooled in the condensing chamber and the resulting water enters the condensate chamber.

[0144] (3) When the water in the condensate chamber reaches a certain level (the specific judgment is based on conventional technology, which can be based on experience or conventional detectors), the motor and water pump start, which is a conventional technology; the condensate formed by the gas water heater in the condensate chamber is transported to the rotating disk through the water supply pipe, the motor drives the rotating disk to rotate, and sprays the water onto the water atomizing device to form water mist. The exhaust pipe and the flue pipe are connected, and the water atomized from the water vapor in the combustion exhaust gas is discharged through the flue pipe and discharged outdoors.

[0145] In this invention, the condenser is used to preheat cold water, and the flue pipe is an external connection pipe, a conventional component of a gas water heater. Exhaust gas from the gas water heater is discharged outdoors through the flue pipe. The condensate drain device is used to convert the condensate produced by the condenser into water mist, which is then discharged outdoors along with the exhaust gas. When the condensate drain device is located outside the condenser, it preferably also includes an exhaust pipe connected to the flue pipe. More preferably, the water atomizing device is partially or entirely located inside the exhaust pipe, facilitating the formation of water mist that enters the flue pipe through the exhaust pipe. This invention achieves the highest drainage efficiency and atomization ratio observed in current experiments, solving the problem of condensate dripping at the flue pipe port in existing methods. In particular, the condensate drain device of this invention has low energy consumption, utilizing the existing gas heater's pre-installed power supply (generally 40W), which is sufficient for operation, overcoming the problem of existing technologies using high-pressure nozzles and other structures requiring additional power supplies.

[0146] This invention discloses a condensate drainage device and a condensing gas water heater including the device, comprising a self-priming atomizing structure, a condensing chamber, and a flue pipe. The self-priming atomizing structure is located inside or outside the condensing chamber. The self-priming atomizing structure is a condensate drainage device, wherein the other end of the self-priming device is connected to the water tank of the condensing chamber. The condensing chamber is used to preheat cold water. The flue pipe is an external pipe conventionally installed on the gasifier, through which the exhaust gas generated by the gasifier combustion is discharged outdoors. The self-priming atomizing structure can atomize the water generated in the condensing chamber into water mist, which is discharged outdoors along with the exhaust gas. One end of the self-priming device is connected to a rotating disc, and the other end is connected to the water tank of the condensing chamber, which can atomize the water vapor generated by liquefying the combustion exhaust gas. When the self-priming atomizing structure is located outside the condenser, it also includes an exhaust pipe connected to the flue pipe. The self-priming atomizing structure and the exhaust pipe form a gas-connected structure, allowing the water generated from the liquefaction of water vapor in the combustion exhaust gas to be atomized and discharged through the flue pipe. When the self-priming atomizing structure is located inside the condenser, it preferably also includes an exhaust pipe connected to the flue pipe. The self-priming atomizing structure and the exhaust pipe form a gas-connected structure, allowing the water generated from the liquefaction of water vapor in the combustion exhaust gas to be atomized and discharged through the flue pipe. Preferably, part or all of the water atomizing device is located inside the exhaust pipe, which facilitates the atomization of the water generated from the liquefaction of water vapor in the combustion exhaust gas and its subsequent discharge through the flue pipe.

[0147] Preferably, the rotary disk driver is also equipped with fan blades, which are located above the self-priming device. The rotary disk driver simultaneously drives the rotary disk and the fan blades to rotate, and the fan blades provide suction, accelerating the discharge speed of water mist and improving the water discharge efficiency.

[0148] In this invention, the condenser chamber is used to preheat cold water, and the exhaust pipe is an external pipe, a conventional component of a gas water heater. Exhaust gas from the gas water heater is discharged outdoors through the exhaust pipe. The self-priming atomizing structure is used to convert the water generated in the condenser chamber into water mist, which is then discharged outdoors along with the exhaust gas. In practical applications, a section of pipe is left on the upper surface of the condenser chamber as an exhaust pipe. When the self-priming atomizing structure is located inside the condenser chamber, it can be installed inside the condenser chamber (outside the pipe) or inside the pipe on the upper surface of the condenser chamber. When the self-priming atomizing structure is located outside the condenser chamber, an additional exhaust pipe can be installed, with the self-priming atomizing structure inside the exhaust pipe. The exhaust pipe and the exhaust pipe are connected, atomizing the water vapor generated from the liquefaction of the combustion exhaust gas and then discharging it through the exhaust pipe.

[0149] This invention discloses a self-priming device located on the lower surface of a rotating disk, communicating with the rotating disk, with its other end connected to a water tank in the condensation chamber. Specifically, the rotating disk has a through hole, the self-priming device is located on the lower surface of the rotating disk, communicating with the through hole, and its other end is connected to a water tank in the condensation chamber. In actual production, the self-priming device can be a water pipe or other structures, as long as it can rotate with the rotating disk and draw water into the rotating disk.

[0150] Prior art discloses a gas water heater that atomizes water using a conventional high-pressure atomizing nozzle (68.4W) and an auxiliary fan (14.4W) to accelerate the discharge of water mist from the exhaust pipe, thus achieving water discharge. According to its usage, previous experiments showed an discharge efficiency of 940 mL / h, with an atomization rate of less than 40%, and an auxiliary fan is required; otherwise, the discharge efficiency is below 500 mL / h. Currently available water-absorbing atomizing nozzles are large and unsuitable for gas water heaters, and also have high power consumption (150W). Therefore, a new structure needs to be developed. This invention discloses a self-priming atomizing structure and its application in a gas heater. This self-priming atomizing structure includes a rotating disc, a self-priming device, a rotating disc driver, and a water atomizing device. The rotating disc is connected to and controlled by the rotating disc driver; the self-priming device is located below and connected to the rotating disc, drawing water to the surface of the rotating disc under the suction force of rotation; the water atomizing device is located at the edge or outer side of the rotating disc to atomize the water thrown out by the rotating disc. The self-priming atomization structure of this invention is used in condensing gas water heaters to discharge water generated by liquefying water vapor in their exhaust gas. It is highly efficient and effectively alleviates the dripping problem of existing drainage structures. In particular, the atomization ratio of this invention exceeds 95%, which allows it to be applied in gas heaters.

[0151] The following embodiments 17 to 25 further describe this technical solution. 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. The rotary disk driver used in this invention is a motor (existing product, 32W), which does not require additional power supply. The reserved power supply of a conventional gas water heater can meet the requirements. Example 17

[0152] As shown in Figures 16 to 20:

[0153] A self-priming atomizing structure consists of a rotating disk 1, a self-priming device 21, a rotating disk driver 3, and a water atomizing device 4. The rotating disk driver (power equipment) is a motor, and the self-priming device is a water pipe with an inverted conical shape, running vertically through the pipe. The area of ​​the end face near the rotating disk is larger than the area of ​​the opposite end face, which facilitates the self-priming device to draw water under the self-priming force generated by the rotation of the rotating disk.

[0154] The rotating disk is connected to the rotating disk driver and installed on the motor shaft, and its rotation is controlled by the motor. The center of the bottom surface of the rotating disk has a through hole, and the water pipe of the self-priming device is located on the lower surface of the rotating disk, communicating with the through hole of the rotating disk. The other end is used to communicate with the water tank of the condenser.

[0155] The rotating disk has a smooth surface without water flow channels. It is an inverted cone shape, as shown in Figure 17, and has an open structure. In actual production, the rotating disk can also have other structures, as shown in Figure 18, which is a schematic diagram of the rotating disk structure. The angles shown in the figure are for illustrative purposes only and do not affect the realization of the technical effect of this invention.

[0156] The water atomizing device is a grid, consisting of upper and lower fixing parts (rings) and a central grid of triangular prisms (see Figures 19 and 20), with a width of 4mm, and uses a fixed installation structure. The water atomizing device is mounted on the periphery of the rotating disk and remains stationary. In actual production, the structure of the grid is not specifically limited and can be cylindrical, conical, or other shaped structures, as shown in Figures 11 and 12, which are schematic diagrams of the grid structure. Example 18

[0157] Referring to Figure 21, a condensing gas water heater includes the above-mentioned self-priming atomizing structure, as well as a conventional condensing chamber 51 and a flue pipe 6. A section of pipe is left on the upper surface of the condensing chamber as an exhaust pipe, which is connected to the flue pipe.

[0158] The self-priming atomizing structure is located in the condensation chamber. The motor and grille are respectively installed in one end of the exhaust pipe via supports. The supports and installation method are conventional technologies, which can fix the motor and grille. During operation, the grille is stationary, and the water in the condensation chamber water tank is self-primed onto the rotating disc through the water pipe. The motor drives the rotating disc to rotate, generating self-priming force, and the water is thrown out with the rotating disc, colliding with the grille and thus turning into water mist. The exhaust pipe and the smoke exhaust pipe are connected, and the water produced by liquefying water vapor in the combustion exhaust gas is atomized and discharged through the smoke exhaust pipe.

[0159] Experimental Method: Under laboratory conditions, 1.2L of water was added to the water collection chamber for a 20-minute experiment. Only the water heater's combustion control fan and motor (at maximum speed) were activated. A small bucket was placed below the exhaust pipe outlet to collect dripping water. In this invention, the rotating disc rotates, and water is ejected and collides with the grille to form mist. The mist is discharged from the exhaust pipe, resulting in high emission efficiency and a high atomization ratio during the emission process. Atomization ratio = (1 - water collected at the exhaust pipe outlet) / water removed × 100%; water removed = 1.2 - water remaining in the water collection chamber; the unit of water is L. The water collected at the exhaust pipe outlet is dripping water, which is one of the problems with existing technologies.

[0160] During the experiment, under the stringent test conditions of tilting the exhaust pipe outlet upwards at a 15° angle and tilting the exhaust pipe upwards at a certain angle, the drainage efficiency remained high, and the phenomenon of condensate dripping onto the building's exterior surface and causing corrosion to the building's exterior surface was avoided.

[0161] The self-priming atomizing structure in Example 1 was used in a simulated drainage experiment of a gas water heater. The experiment showed that it performed well, with a discharge efficiency of 893 mL / h and an atomization rate of 96.52%. Furthermore, the rotary disk structure shown in Figure 18 and the grid structures shown in Figures 11 and 12 both have discharge efficiencies between 950 and 1150 mL / h. Example 19

[0162] Based on Example 18, the difference in this example is that a filter 8 is provided in the water tank of the condensation chamber (see Figure 22), otherwise the same. The filter is used to filter impurities in the water, and the filter is filled with a neutralizing substance to neutralize the water and reduce its acidity. Example 20

[0163] In Example 18, a water level sensor is installed in the water tank of the condenser chamber to measure the water level. In practical applications, the manufacturer sets a height value, and when there is a lot of water, the rotation speed of the plate is increased to improve water drainage efficiency.

[0164] As is common knowledge, the gasifier of this invention has the basic components and structure of a conventional gasifier, such as a central controller 10, a water pipe 11, a combustion chamber 12, a heat exchanger 13, and a combustion control fan 14. The connection methods between specific components and the control methods of the central controller are conventional technologies. Some conventional components are not shown in this invention, and those skilled in the art can make conventional selections based on the technical concept of this invention. The central controller can control the on / off state and speed of the combustion control fan, and can control the on / off state and speed of the motor, which are conventional technologies. The filter and water level sensor themselves, as well as their installation and use, are conventional technologies. Example 21

[0165] Based on Example 18, the difference in this example is that the rotating disk surface has a flow channel structure, as shown in Figure 23; otherwise, they are the same. The emission efficiency is 712 mL / h, and the atomization rate is 49.86%.

[0166] In actual production, the flow channel structure is not specifically limited, as long as the water on the rotating plate can be thrown out. Example 22

[0167] Based on Example 18, the difference in this example is that the grille is a movable installation structure, located on the edge of the rotating disk, and rotates with the rotating disk; otherwise, they are the same. Example 23

[0168] Based on Embodiment 18, the difference in this embodiment is that the grille is a movable installation structure, which is installed around the rotating disk. An additional motor drives the grille, which rotates in the opposite direction to the rotating disk. Everything else is the same.

[0169] The two rotating grid structures mentioned above have poor performance, with water discharge efficiency below 600 mL / h and atomization ratio below 45%. Example 24

[0170] Based on Embodiment 18, the difference in this embodiment is that the motor is also equipped with a fan blade 9 (see Figure 24), otherwise it is the same. Compared with Embodiment 1, it speeds up the emission of water mist and improves the water emission efficiency. Example 25

[0171] The water removal process in the gas water heater described above is as follows:

[0172] (1) When the gas water heater starts working, tap water enters the heat exchanger through the condenser chamber. Natural gas heats the heat exchanger to heat the cold water and at the same time generates high-temperature flue gas. The motor starts and the rotating disc rotates. At this time, the motor can also be turned off and the water in the tank can be turned on after it has accumulated to a certain height. This is the conventional technology.

[0173] (2) The high-temperature flue gas enters the condensation chamber under the action of the combustion control fan for cold water preheating. The water in the high-temperature flue gas is cooled in the condensation chamber and the resulting water enters the water tank.

[0174] (3) The water in the condenser tank is drawn into the rotating disk through the water pipe. The motor drives the rotating disk to rotate to form a self-drawing force. The water is thrown out with the rotating disk and collides with the grille, thus turning into water mist. The exhaust pipe and the smoke exhaust pipe are connected to atomize the water vapor produced by the liquefaction of the combustion exhaust gas and then discharge it through the smoke exhaust pipe to the outside.

[0175] Furthermore, a conventional controller can be used to control the operation of the motor. The water tank in the condensation chamber is equipped with a water level sensor. When the water reaches the set height, the central control unit controls the motor to start or accelerate, thereby increasing the rotation speed of the rotating disc and speeding up water removal.

[0176] 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 in the condensing chamber of a condensing gas water heater, water vapor in the high-temperature flue gas condenses upon cooling, producing a large amount of liquid water. Since 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, making the water acidic, and the disposal of this water is a problem that needs to be addressed. This invention uses a water pipe to draw water from the condensing chamber tank to a rotating disc. A motor drives the rotating disc to rotate, creating a self-drawing force. The water is then thrown out by the rotating disc, colliding with the grille and transforming into water mist. The exhaust pipe and flue pipe are connected, and the water mist produced by liquefying the water vapor in the combustion exhaust gas is then discharged outdoors through the flue pipe. Existing technologies cause dripping problems at the exhaust pipe outlet. This invention employs a novel structure where water in the condensate tank is self-primed onto a rotating disc via a self-priming device. The rotating disc driver drives the disc to rotate, creating a self-priming force. The water is then flung out by the rotating disc, colliding with a water atomizing device and transforming into water mist. This high atomization and discharge efficiency effectively alleviates the dripping problem inherent in existing drainage structures. Crucially, the self-priming atomization structure liquefies water vapor from combustion exhaust gases, atomizing the water before it is discharged through the exhaust pipe. This high atomization effect avoids problems caused by water containing acidic substances, and the water diffuses quickly and can be diluted by air.

[0177] This invention discloses a condensate draining device and a condensing gas water heater including the device. When the gas water heater is working, water produced by the condenser flows to a rotating disc via a water conveying structure. A first driving device drives the rotating disc to rotate, and water is ejected and collides with a water atomizing device to form mist. The mist is discharged from the exhaust pipe, completing the water removal process of the gas water heater. Unlike existing water pump systems, this invention uses a water pipe as the water conveying structure, with one end connected to the condenser's water collection chamber and the other end placed at the rotating disc. This allows water to flow by gravity to the rotating disc without the need for a water conveying power device. This not only achieves efficient water removal and low energy consumption but also reduces material costs. In particular, it solves the problem of interference between multiple airflow fields in existing technologies, and especially does not affect the combustion control fan.

[0178] In this invention, the surface of the rotating disk is the water-receiving side, preferably a smooth structure. Existing technologies mostly involve setting concave and convex structures such as guide grooves on the rotating disk surface. This invention does not employ conventional techniques, achieving better technical results with a smooth rotating disk, which is unexpected. Generally, the cross-section of the rotating disk body is circular, and it can be a bowl-shaped structure, a cylindrical structure, a frustum structure, an inverted frustum structure, a conical structure, an inverted cone structure, a single-layer or multi-layer structure, or other structures, capable of receiving water and rotating to eject the water to collide with the water atomizing device, thereby transforming it into water mist. The inverted frustum or inverted cone structure refers to a structure that is larger at the top and smaller at the bottom in a vertical position. Furthermore, the rotating disk surface may or may not be open, preferably open. As an example, an opening (with an empty bottom) can be formed using the side of the inverted frustum or inverted cone structure to receive water and eject it. Preferably, the side of the rotating disk is an inclined structure, and the angle between the inclined structure and the horizontal plane is preferably 0 to 60 degrees. Taking a rotating disk with a conical structure as an example, the angle between the radius of the rotating disk and the horizontal plane is 0 to 60 degrees.

[0179] When the gas water heater is working, the water produced by the condenser flows to the rotating disk through the water conveying structure. The rotating disk is preferably an open structure. The first driving device drives the rotating disk to rotate, and the water is ejected and collides with the water atomizing device to form mist. The mist is discharged from the flue pipe, completing the dewatering of the gas water heater.

[0180] In this invention, the shape and structure of the water pipe are not specifically limited, as long as it allows water to flow by gravity onto the rotating disc without the need for a water delivery power device, thereby reducing energy consumption and achieving energy-saving effects. Water in the condenser's water collection chamber is transported to the rotating disc through the water pipe. The motor drives the rotating disc to rotate, and the water is ejected along with the rotating disc, colliding with the grid and transforming into water mist. There is no need for high-energy-consuming equipment such as a gas source or water pump; the atomization function is achieved simply by rotating the disc, which aligns with the energy-saving design principles of gas water heaters. In particular, the mechanism of the rotating disc combined with the water atomization device in this invention has low power requirements for the driving equipment, which can be met by the power supply of existing conventional water heaters, eliminating the need for an additional power source.

[0181] The technical solution will be further described below with reference to the accompanying drawings and embodiments 26 to 37. The specific components involved are existing products, and the specific components are equipped with conventional mounting parts. The connection, installation, and usage methods between the specific components are conventional technologies. The driving device used in this invention is a motor (existing product, 27W), which does not require additional power supply. The reserved power supply of a conventional gas water heater can meet the requirements.

[0182] Experimental Method: Under laboratory conditions, 1.3L of water was added to the water collection chamber for a 20-minute experiment. Only the water heater's combustion control fan and motor (at maximum speed) were activated. A small bucket was placed below the exhaust pipe outlet to collect dripping water. The dripping water collected at the exhaust pipe outlet is a problem in existing technologies. This invention addresses this by rotating a disc, which ejects water and collides with a water atomizing device to form mist. The mist is then discharged from the exhaust pipe, resulting in high emission efficiency and a high atomization ratio during the emission process, thus mitigating the dripping phenomenon. Atomization ratio = (1 - water collected at the exhaust pipe outlet) / water removed × 100%; water removed = 1.3 - water remaining in the water collection chamber; the unit for water is L.

[0183] During the experiment, under the stringent conditions of tilting the exhaust pipe outlet upwards at a 15° angle and tilting the exhaust pipe upwards at a certain angle, the drainage efficiency remained high, and the phenomenon of condensate dripping onto the building's exterior surface and causing corrosion to the building's exterior surface was avoided. Example 26

[0184] As shown in Figures 25 to 31:

[0185] A gas water heater includes a condenser 5, a flue pipe 6, a water removal module 15, and an exhaust pipe 7; the water removal module is located outside the condenser and inside the exhaust pipe, and the exhaust pipe is connected to the flue pipe.

[0186] The exhaust pipe connects to the condenser via its upper surface. The condenser is connected to the combustion chamber, and the water pipes inside the condenser are connected to the water pipes in the combustion chamber. This is the conventional structure of existing condensing gas water heaters. The water collection chamber is located inside the condenser at the bottom. The exhaust pipe is a separate pipe located outside the condenser, with one end connected to the exhaust pipe and the other end equipped with a water removal module.

[0187] The water removal module includes a rotating disk 1, a water conveying structure 22, a first driving device 3, and a water atomizing device 4; the rotating disk is connected to the first driving device; the water conveying structure is connected to the water collection chamber of the condenser; the first driving device of the water removal module is horizontally fixed in the exhaust pipe by a fixed bracket. The fixed bracket and the specific installation method are conventional technologies, which can fix the first driving device without affecting the realization of the technical effect of the present invention. Figure 27 shows a schematic diagram of water droplets flowing from the water collection chamber to the rotating disk as water.

[0188] The first driving device is a motor. The surface of the rotating disk (the water-contacting surface) is smooth, and the body is an inverted cone. The apex is mounted on the motor's rotating shaft. The angle between the radius of the rotating disk and the horizontal plane is 30 degrees, as shown in Figure 28. The degree is given to facilitate understanding by those skilled in the art. The surface is open. In actual applications, the structure of the rotating disk is not specifically limited. As shown in Figure 29, which is a schematic diagram of the rotating disk structure, (a) is an inverted cone structure, (b) is an inverted frustum structure, (c) is a double-layered inverted cone sandwich structure, and (d) is a double-layered inverted frustum sandwich structure. The structures from a to d (larger at the top and smaller at the bottom) can also be reversed to form a rotating disk that is smaller at the top and larger at the bottom, and the surface may or may not be open; this is only an example. When the rotating disk has a double-layered structure, both rotating disks can receive water and spray it out.

[0189] The water atomizing device has a grid structure, consisting of fixed rings at both ends and a fixed, spaced array of rectangular columns (see Figures 30a, a' and 31). The columns are 5mm wide, and the angle between adjacent columns is 15°. The grid is a fixed installation structure, mounted on the periphery of the rotating disk and fixed to the inner wall of the exhaust pipe. It is stationary. The mounting bracket and specific installation method are conventional techniques, which can fix the grid without affecting the technical effect of the invention. In practical applications, the structure of the water atomizing device is not specifically limited. It can be a cylinder, a frustum, or other shapes. For example, the condensate discharge device is shown as a schematic diagram of a grid structure, where (a, a') are vertical columnar grid cylindrical structures, (b, b') are vertical columnar grid frustum structures (see Embodiment XII), and (c, c') are oblique columnar grid cylindrical structures (see Embodiment XIII). These are only examples and do not affect the technical effect of the invention.

[0190] The water delivery structure is a water pipe, with one end connected to the water collection chamber of the condenser and the other end placed above the rotating disk at the center of the rotating disk; water flows by gravity to the rotating disk, is ejected with the rotating disk, collides with the grid, and is thus transformed into water mist, which is then drawn outdoors by the exhaust gas under the action of the combustion control fan.

[0191] Experiments show that the effect is good, with an emission efficiency of 986 mL / h and an atomization rate of 92.87%. Example 27

[0192] Based on Example 26, the difference in this example is that the surface of the rotating disk has an uneven structure, which serves as a flow channel; otherwise, it is the same. Figure 32 shows a schematic diagram of the flow channel structure on the rotating disk surface, consisting of a series of radial channels extending from the center to the edge of the disk. Regardless of whether it is this flow channel structure or another, the emission efficiency is less than 720 mL / h, and the atomization rate is less than 50%. Example 28

[0193] Based on Example 26, the difference in this example is that the water atomizing device is a movable mounting structure, located on the edge of the rotating disk and rotating with it; otherwise, it is the same. The test results are not as good as existing commercially available products. Example 29

[0194] Based on Example 26, the difference in this example is that the water atomizing device is a movable mounting structure, installed around the rotating disk, and an additional motor drives the water atomizing device in the opposite direction to the rotation of the rotating disk; otherwise, they are the same. Test results are not as good as existing commercially available products. Example 30

[0195] Based on Example 26, the difference in this example is that the angle between the radius of the rotating disk and the horizontal plane is 60 degrees; otherwise, they are the same. Experiments show that the emission efficiency is 717 mL / h, and the atomization rate is 91.4%. Example 31

[0196] Based on Example 26, the difference in this example is that the angle between the radius of the rotating disk and the horizontal plane is 45 degrees; otherwise, they are the same. Experiments show that the emission efficiency is 901 mL / h, and the atomization rate is 91.9%. Example 32

[0197] Based on Example 26, the difference in this example is that the water removal module is located inside the condenser and there is no exhaust pipe. Specifically, the motor is conventionally installed on the inner wall of the condenser, and the grid is located below the condenser outlet. Everything else is the same. Example 33

[0198] Based on Example 32, the difference in this example is that the condenser is equipped with an exhaust pipe, and the motor is conventionally installed on the inner wall of the exhaust pipe port; otherwise, they are the same. Example 34

[0199] Based on Example 26, a filter is installed in the water collection chamber of the condenser, located at the water pipe port. The filter is used to filter impurities in the water, and is filled with a neutralizing substance to neutralize the water and reduce acidity; the filter and its specific installation method are conventional techniques. Example 35

[0200] Based on Example 26, a water level sensor is installed in the water collection chamber of the condenser to measure the water level in the water collection chamber; for example, the manufacturer sets a height value, and when there is more water, the rotation speed of the rotating disk is increased to improve the water discharge efficiency; the water level sensor and the specific installation method are conventional technologies.

[0201] As is common knowledge, the gas water heater of this invention has the basic components and structure of a conventional gas water heater, such as a central controller 10, a tap water pipe 11, a combustion chamber 12, a heat exchanger 13, and a combustion control fan 14. The connection methods between specific components and the control methods of the central controller are conventional technologies. Some conventional components are not shown in this invention, and those skilled in the art can make conventional selections based on the technical concept of this invention. The connection method between the exhaust pipe and the flue pipe is a conventional technology, such as sleeve, adhesive, or welding, which does not affect the realization of the technical effect of this invention. In this embodiment, the upper end of the exhaust pipe is welded to the flue pipe, or the flue pipe is inserted into the upper end of the exhaust pipe.

[0202] The central controller can control the on / off state and speed of the combustion control fan, as well as the on / off state and speed of the motor, which is a conventional technology. Example 36

[0203] Based on Embodiment 26, the difference in this embodiment is that a fan blade 9 is also provided on the motor shaft, as shown in Figure 33; otherwise, it is the same. Compared to Embodiment 1, it accelerates the emission speed of water mist and improves the water emission efficiency, thereby accelerating the emission speed of exhaust gas and water mist. Example 37

[0204] The process of heating and removing cold water in the gas water heater of this invention is as follows:

[0205] (1) When the gas water heater starts working, tap water enters the heat exchanger through the condenser. Natural gas heats the heat exchanger to heat the cold water and at the same time generates high-temperature flue gas; the motor starts and the rotating disc rotates.

[0206] (2) The high-temperature flue gas enters the condenser under the action of the combustion control fan to preheat the cold water. The water in the high-temperature flue gas is cooled in the condenser and the water generated enters the water collection chamber.

[0207] (3) The water in the condenser water collection chamber flows by gravity to the rotating disk, and the water is ejected with the rotating disk and collides with the grid, thus turning into water mist;

[0208] (4) Water mist enters the exhaust pipe and is discharged outdoors under the action of the combustion control fan.

[0209] Furthermore, a conventional controller can be used to control the motor's operation, and a water level sensor is installed in the condenser's water collection chamber. When the water in the condenser's water collection chamber reaches the set height, the central control unit controls the motor to accelerate, increasing the rotation speed of the rotating disc and speeding up water removal.

[0210] Prior art discloses a gas water heater that atomizes water using a conventional high-pressure atomizing nozzle (68.4W) and an auxiliary fan (14.4W) to accelerate the discharge of water mist from the exhaust pipe, thus achieving water discharge. According to its usage, experiments show that the discharge efficiency is 940 mL / h, with an atomization rate of less than 40%, and an auxiliary fan is required; otherwise, the discharge efficiency is below 500 mL / h. This invention discloses a gas water heater and its water removal method. The gas water heater includes a water removal module and conventional combustion chamber, condenser, and exhaust pipe. The water removal module is located inside or outside the condenser and includes a rotating disc, a water conveying structure, a first driving device, and a water atomizing device, eliminating the need for a water pump. The rotating disc is connected to the first driving device, and the water atomizing device is located at the edge or outside of the rotating disc. The water conveying structure is connected to the water collection chamber of the condenser. This invention can atomize and discharge water from the water collection chamber, achieving an atomization rate of over 90%, effectively alleviating the dripping phenomenon present in existing atomizing devices used for water removal in gas water heaters and avoiding environmental problems caused by water droplets. This invention can effectively drain water from gas water heaters with low energy consumption and no need for additional power supply; in particular, this invention does not require a rotating disc drive, allowing water to flow by gravity onto the rotating disc, thus achieving both high water removal efficiency and low energy consumption, while also reducing consumable costs and ensuring complete drainage of water.

[0211] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A condensed water discharge device characterized by comprising: The condensate water discharge device comprises a rotating disc, a water delivery device, a rotating disc driver, and a water atomization device; the rotating disc is connected with the rotating disc driver; the water atomization device is located at the edge or outside of the rotating disc; the water outlet of the water delivery device is located at the rotating disc; the water delivery device comprises a water delivery pipe, or the water delivery device comprises a water delivery pipe and a water collector, or the water delivery device comprises a self-suction device.

2. The condensed water discharge apparatus according to claim 1, characterized by: When the water delivery device comprises a water delivery pipe and a water collector, the water collector is provided with a water inlet and a water outlet, and the water inlet and / or the water outlet are respectively communicated with the water delivery pipe; when the water delivery device comprises a water delivery pipe, one end of the water delivery pipe is communicated with the condensed water, and the other end is located above the rotating disc; when the water delivery device comprises a self-suction device, the self-suction device is located below the rotating disc and is communicated with the rotating disc.

3. The condensed water discharge apparatus according to claim 2, characterized by: The self-suction device is a hollow structure, one end of which is located on the lower surface of the rotating disc and is communicated with the rotating disc.

4. The condensed water discharge apparatus according to claim 3, characterized by: The self-suction device is a columnar structure, a conical structure or a circular truncated cone structure.

5. The condensed water discharge apparatus according to claim 3, characterized by: The self-suction device is coaxial with the rotating disc.

6. The condensed water discharge apparatus according to claim 1, characterized by: The rotating disc driver is further provided with a fan blade.

7. The condensed water discharge apparatus according to claim 1, wherein: The water atomization device is a fixed installation structure or a movable installation structure.

8. The condensed water discharge apparatus according to claim 1, wherein: The surface of the rotating disc is a smooth structure, or the surface of the rotating disc is provided with a groove, or the side surface of the rotating disc is a slope structure; the water atomization device is a grid.

9. The condensed water discharge apparatus according to claim 8, characterized by: The water atomization device comprises spaced-apart columns; the grid is a ring-shaped grid structure.

10. The condensed water discharge apparatus according to claim 8, characterized by: The angle between the slope structure and the horizontal plane is 0-60 degrees.

11. A condensing gas water heater comprising a condenser, an exhaust pipe; characterized in that: The condensate water discharge device of any one of claims 1-10 is further included.

12. The condensing gas water heater of claim 11, wherein: The condenser comprises a condensed water chamber; the water inlet of the water delivery device is communicated with the condensed water chamber of the condenser, and the water outlet is located at the rotating disc.

13. The condensing gas water heater of claim 12, wherein: When the water delivery device comprises a water delivery pipe and a water collector, the water collector is provided with a water inlet and a water outlet, the water inlet is communicated with the condensed water chamber of the condenser through the water delivery pipe, and the water outlet is communicated to the rotating disc through the water delivery pipe; when the water delivery device comprises a water delivery pipe, one end of the water delivery pipe is communicated with the condensed water chamber of the condenser, and the other end is located above the rotating disc; when the water delivery device comprises a self-suction device, one end of the self-suction device is located on the lower surface of the rotating disc and is communicated with the rotating disc, and the other end is located in the condensed water chamber of the condenser.

14. The condensing gas water heater of claim 11, wherein: The condensate water discharge device is located in or outside the condenser, or part of the condensate water discharge device is located in the condenser; the condensate water discharge device and the smoke exhaust pipe are in gas communication.

15. The condensing gas water heater of claim 11, wherein: The condensing gas water heater further comprises an exhaust pipe, which is communicated with the smoke exhaust pipe.

16. The condensing gas water heater of claim 15, wherein: Part or all of the water atomization device is located in the exhaust pipe.

17. The condensing gas water heater of claim 11, wherein: The condensed water chamber of the condenser is provided with a filter and / or a water level sensor.

18. Application of the condensate water discharge device of claim 1 in the treatment of condensed water of a condensing gas water heater.

19. A method for draining condensate water from a condensing gas water heater using the condensate water draining apparatus according to any one of claims 1 to 10, characterized in that, The water delivery device delivers the condensed water to the rotating disc, the rotating disc driver drives the rotating disc to rotate, the water is shot to the water atomization device, the water mist is formed, and then is discharged through the smoke exhaust pipe, thereby completing the discharge of the condensed water of the condensing gas water heater.

20. The method of claim 19, wherein, When the water delivery device comprises the water delivery pipe and the water collector, the water collector delivers the condensed water formed by the operation of the gas water heater in the condensed water chamber to the rotating disc through the water delivery pipe, the rotating disc driver drives the rotating disc to rotate, the water is sprayed to the water atomizing device to form water mist, and then the water mist is discharged through the exhaust pipe; when the water delivery device comprises the water delivery pipe, the water generated by the condenser during the operation of the gas water heater flows to the rotating disc through the water delivery pipe, the rotating disc driver drives the rotating disc to rotate, the water is sprayed and collides with the water atomizing device to form mist, and then the mist is discharged through the exhaust pipe; when the water delivery device comprises the self-suction device, the self-suction device sucks and delivers the condensed water formed by the operation of the gas water heater in the condensed water chamber to the rotating disc, the rotating disc driver drives the rotating disc to rotate, the water is sprayed to the water atomizing device to form water mist, and then the water mist is discharged through the exhaust pipe.

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