Gas water heater and water removal method thereof

Abstract

The invention discloses a gas water heater and a water removal method thereof. The gas water heater comprises a water removal module, a conventional combustion chamber, a conventional condenser and a conventional smoke exhaust pipe. The water removal module is located inside or outside the condenser and comprises a rotating disc, a water conveying structure, first driving equipment and a water collision device, and a water pump is not needed; the rotating disc is connected with the first driving device, the water collision device is located on the edge or the outer side of the rotating disc, and the water conveying structure communicates with a water collecting cavity of the condenser. Water in the water collecting cavity can be atomized and discharged, the atomization proportion exceeds 90%, the water dripping phenomenon existing when existing atomization equipment is used for water removal of the gas water heater is effectively relieved, and the environmental problem caused by water dripping is avoided. Water in the gas water heater can be effectively discharged, energy consumption is low, and no extra power source needs to be arranged; particularly, power equipment does not need to be arranged, water automatically flows to the rotating disc, the water removal efficiency and low energy consumption are both considered, the consumable cost is reduced, and the water can be completely discharged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household appliances, and particularly relates to a gas water heater and a water removal method thereof. BACKGROUND

[0002] The gas water heater is widely used due to its energy saving and environmental protection characteristics. The cold water is preheated by absorbing the residual heat of the high-temperature flue gas generated by combustion, so as to improve the thermal efficiency of the gas water heater. However, in the process of preheating the cold water, the water vapor in the high-temperature flue gas condenses to form a large amount of liquid water in the condenser. Since the high-temperature flue gas generated by natural gas combustion contains a large amount of acidic substances (carbon oxides, sulfur oxides, nitrogen oxides, etc.), and is dissolved in water, the water is acidic. The discharge of water is a problem to be solved.

[0003] At present, the gas water heater on the market needs to reserve a water drain port, reserve a drain pipe during installation, and connect a floor drain separately during use. Or a temporary water storage container is arranged at the water drain port, and the user is required to frequently pour water. Or connect other special discharge channels to discharge water. Such a scheme that increases installation cost and complexity is not welcome, and there is an urgent need to provide a water removal scheme that does not change the main structure and installation method of the gas water heater.

[0004] The prior art discloses forming water into water mist, hoping to be discharged with the exhaust pipe. Specifically, the prior art also discloses a water misting discharge device and a condensing type gas water heater. A first exhaust fan is arranged below the water sprinkler, and a second exhaust fan is vertically distributed in front of the first exhaust fan. Water droplets fall on the blades of the first exhaust fan below, and the rotating blades form ultra-fine mist droplets on the water droplets. The water vapor is dissolved in the air and moves upward under the action of the wind power of the second exhaust fan, enters the misting discharge pipe, and finally enters the exhaust pipe under the action of pressure, and is discharged to the outdoor together with the flue gas. The technical scheme has defects, which leads to its inability to be applied. The most important problem in actual experiments is that the air currents formed by the two fans interfere with each other, especially in order to form ultra-fine mist droplets on the water droplets and move the water vapor upward into the misting discharge pipe. Both fans need high power, which leads to strong wind field around the fan and mutual interference. It is found that the water droplets cannot effectively fall on the blades, and the small amount of water vapor is not easy to discharge. Only a small amount of water vapor is seen at the exhaust pipe opening, and the backflow in the shell is obvious, which leads to the fact that the structure cannot be applied. Moreover, the two fans have high energy consumption and need to be additionally provided with a power supply.

[0005] Therefore, it is necessary to develop a new structure that can effectively discharge the water in the gas water heater and has low energy consumption without the need for an additional power supply. SUMMARY

[0006] In view of the above problems, the present application aims to provide a gas water heater and a water removal method thereof, which can effectively remove water in the gas water heater and has low energy consumption without the need of additional power supply; in particular, the present application does not need to set a power device, so that the water flows to the rotating disc by itself, and the water removal efficiency and low energy consumption are considered, the cost of consumables is also reduced, and the water can be completely removed.

[0007] The technical solution adopted by the present application to solve its technical problems is: The gas water heater comprises a condenser and an exhaust pipe; further comprising a water removal module, which is located in or outside the condenser; when the water removal module is located outside the condenser, it further comprises an exhaust pipe, which is communicated with the exhaust pipe; the water removal module comprises a rotating disc, a water conveying structure, a first driving device and a water collision device; the rotating disc is connected with the first driving device (driven to rotate by the first driving device), and the water collision device is located at the edge or outside of the rotating disc; the water conveying structure is communicated with the water collecting cavity of the condenser.

[0008] The gas water heater of the present application is a condensing gas water heater. As common sense, the gas water heater has a combustion chamber, and the high-temperature waste gas generated by work is used to preheat cold water through the condenser, and the exhaust pipe is an external pipeline, which are all conventional components of the gas water heater. The waste gas in the gas water heater is discharged to the outdoor through the exhaust pipe, and the water removal module is used to convert the water generated by the condenser into water mist, which is discharged to the outdoor together with the waste gas.

[0009] The water removal module for the gas water heater comprises a rotating disc, a water conveying structure, a first driving device and a water collision device; the rotating disc is connected with the first driving device, and the water collision device is located at the edge or outside of the rotating disc.

[0010] In the present application, the water conveying structure comprises a water pipe, one end of the water pipe is communicated with the water collecting cavity of the condenser, and the other end is arranged above the rotating disc; preferably, the water conveying structure is a water pipe or a water pipe provided with a conventional valve. In actual application, the shape and structure of the water pipe are not limited, as long as the water can flow to the rotating disc by itself without the need of setting a power device, so as to reduce energy utilization and achieve energy saving effect. The water in the water collecting cavity of the condenser is conveyed to the rotating disc through the water conveying structure, the first driving device drives the rotating disc to rotate, the water is shot out with the rotating disc, collides with the water collision device, and is converted into water mist without the need of setting a gas source and other high-energy-consumption devices. Only the rotation of the rotating disc can realize the atomization function, which meets the original intention of energy saving design of the gas water heater. In particular, the power requirement of the driving device of the mechanism of the rotating disc combined with the water collision device is low, and the power supply of the existing conventional water heater can meet the requirement without the need of additional power supply.

[0011] In the present application, the water removal module is located in the condenser or outside the condenser; when the water removal module is located outside the condenser, it also includes an exhaust pipe communicating with the exhaust pipe; preferably, when the water removal module is located in the condenser, it also includes an exhaust pipe communicating with the exhaust pipe.

[0012] In the above technical solution, one end of the exhaust pipe communicates with the exhaust pipe, and the other end is located at the water removal module, and the water mist formed by collision is discharged from the exhaust pipe; preferably, when the exhaust pipe exists, the water collision device is partially or entirely located in the exhaust pipe, which can more effectively discharge the water mist from the exhaust pipe.

[0013] In actual application, the water removal module can be horizontally fixed in the exhaust pipe or vertically fixed in the exhaust pipe, and the present application does not make specific limitation, which does not affect the realization of the technical effect of the present application. Under the action of the combustion control fan of the gas water heater, the present application can discharge the water mist from the exhaust pipe without additional fan. The present application not only takes into account the water removal efficiency and low energy consumption, but also reduces the cost of consumables, especially solves the problem of mutual interference of multiple wind fields in the prior art, and especially does not affect the combustion control fan.

[0014] In the present application, the surface of the rotating disc is smooth or concave-convex structure, preferably smooth structure, and the prior art mostly sets concave-convex structures such as flow guide grooves on the surface of the rotating disc. The present application does not use the conventional technology of the prior art, and achieves better technical effect with smooth rotating disc, which is beyond people's expectation. Preferably, the side edge of the rotating disc is a slope structure, and the included angle between the slope structure and the horizontal plane is preferably 0-60 degrees. In actual application, the structure of the rotating disc body is not specifically limited, which can be a column structure with equal height or a column structure with non-equal height. Generally, the cross section of the rotating disc body is circular, which can be a bowl structure, a cylindrical structure, a disc structure, a circular truncated cone structure or an inverted circular truncated cone structure, a conical structure or an inverted conical structure, a single-layer or multi-layer structure (such as 1-5 layers), or other structures, which can receive water and rotate to shoot water to collide with the water collision device, so as to change into water mist.

[0015] As preferred, the water removal module further comprises a water collision device; the water collision device is a grid structure, preferably a ring-shaped grid structure; preferably, the grid structure comprises a fixed ring and fixedly spaced columns arranged in the ring. The water collision device is a fixed installation structure or a movable installation structure, wherein the fixed installation structure means that the water collision device is fixed and immovable, and the movable installation structure means that the water collision device is movable, specifically, it can rotate by itself. The movable installation structure can be installed on a rotating disc (the water collision device is located at the edge of the rotating disc), or an additional second driving device can be provided to drive the water collision device (the water collision device is located outside the rotating disc). Further preferably, the water collision device is a fixed installation structure, and the water ejected from the rotating disc collides with the water collision device to change into water mist. The water collision device is a fixed installation structure, which can avoid the generation of air flow and affect the atomization effect. In actual production, the structure of the water collision device is not limited, and the appearance can be a cylindrical body, a circular truncated cone body or other structures. The columns of the grid can be vertical columnar structures or inclined columnar structures, and the columns can be cylindrical, square or other prismatic. This does not affect the understanding of the technical effects of the present application by those skilled in the art. As an example, in the grid, the column width (outer diameter) is 1-10 mm, preferably 2-9 mm, more preferably 3-8 mm, and further preferably 4-6 mm. The height is determined according to the space, and the included angle between adjacent columns is 5-30°, preferably 10-25°, and more preferably 12-20°.

[0016] In the present application, the first driving device and the second driving device are devices capable of rotating the rotating disc or the water collision device, such as a motor. As preferred, the first driving device is further provided with a fan blade located on the rotating shaft of the first driving device and below the rotating disc to accelerate the discharge of water mist. The shape and position of the fan blade do not affect the operation of the combustion control fan. In particular, the structure of the present application has low power requirements for the driving device, and the power supply of the existing conventional water heater can meet the requirements without the need for additional power supply.

[0017] As common sense, the gas water heater of the present application has the basic components and structure of a conventional gas water heater, such as a central controller, a tap water pipeline, a combustion chamber, a heat exchanger, a combustion control fan, and the connection method between the specific components and the control method of the central controller are conventional technologies.

[0018] In the present application, the water collection cavity of the condenser is provided with a filter and a water level sensor. The filter is used to filter impurities in the water to prevent the water pipe from being blocked. The water level sensor is used to measure the height of the water in the water collection cavity of the condenser. The manufacturer can set a height value, and when there is more water, the rotating speed of the rotating disc is increased to improve the discharge efficiency of the water.

[0019] The present application discloses the application of the above-mentioned water removal module for gas water heater in the water removal process of the gas water heater.

[0020] The application discloses a water removal method of the gas water heater, and comprises the following steps: when the gas water heater is working, water generated by the condenser is flowed to the rotating disc by the water conveying structure; the rotating disc is driven to rotate by the first driving device, the water is ejected and collided with the water collision device to form mist; the mist is discharged from the smoke exhaust pipe, and the water removal of the gas water heater is completed.

[0021] Due to the technical scheme, the application has the following beneficial effects: first, the water removal module is arranged, so that the water is changed into mist and discharged, especially, the water removal module does not need to be provided with a high-energy-consumption device such as a gas source, and the atomization function can be realized only by rotating the rotating disc, which meets the original intention of energy-saving design of the gas water heater; second, according to the water output, the rotating speed of the rotating disc can be adjusted in real time, different sizes of atomized particles are obtained, different atomization effects are realized, and the practical application is more flexible and reliable; third, the installation mode of the application is the same as that of the traditional gas water heater, the user does not need to additionally increase a drain pipe, and the original water circuit and circuit pipeline decoration do not need to be changed.

[0022] The application can atomize and discharge the water in the water collecting cavity, the atomization ratio is more than 90%, the dripping phenomenon of the existing atomization equipment used for water removal of the gas water heater is effectively relieved, and the environmental problems caused by water dripping are avoided. The application can effectively discharge the water in the gas water heater and has low energy consumption, does not need to be additionally provided with a power supply, especially, the motor is less than 30W, the universality of the gas water heater is good, and the requirement of the gas water heater on the reserved power supply is low. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a water removal module structure schematic diagram of example one.

[0024] Figure 2 It is a gas water heater structure schematic diagram of example one.

[0025] Figure 3 It is a structure schematic diagram of the gas water heater of example one (with a smoke gas schematic diagram).

[0026] Figure 4 It is a 30-degree rotating disc structure schematic diagram of example one.

[0027] Figure 5 It is a structure schematic diagram of other rotating discs of example one.

[0028] Figure 6 It is a water collision device structure schematic diagram of example one.

[0029] Figure 7 It is a water collision device actual object diagram of example one.

[0030] Figure 8 It is a rotating disc surface concave-convex structure schematic diagram of example two.

[0031] Figure 9 is the schematic diagram of the water removal module structure of example eleven.

[0032] Wherein: condenser 1, exhaust pipe 2, water removal module 3, exhaust pipe 4, central controller 5, water pipe 6, combustion chamber 7, heat exchanger 8, combustion control fan 9, rotating disc 301, water delivery structure 302, first driving device 303, water collision device 304, fan blade 305. DETAILED DESCRIPTION

[0033] Unlike the existing water pump water delivery, the water pipe is used as the water delivery structure in the present application, one end of which is communicated with the water collecting cavity of the condenser and the other end is arranged at the rotating disc, so that the water can flow to the rotating disc without setting power equipment; not only the water removal efficiency and low energy consumption are considered, but also the material cost is reduced, and especially the problem of mutual interference of the existing technology is solved, and the combustion control fan is not affected.

[0034] In the present application, the surface of the rotating disc is the water receiving surface, which is preferably smooth structure. The prior art mostly sets the concave-convex structure such as the flow guide groove on the surface of the rotating disc. The present application does not use the conventional technology of the prior art, but uses the smooth rotating disc to achieve better technical effect, which is beyond people's expectation. Generally, the cross section of the rotating disc body is circular, which can be bowl structure, cylindrical structure, circular truncated cone structure or inverted circular truncated cone structure, single layer or multi-layer structure, or other structure, which can receive water and rotate to shoot the water to collide with the water collision device, so as to change into water mist. Further, the surface of the rotating disc is open or not open, preferably open. As an example, the side of the inverted circular truncated cone structure or the inverted circular truncated cone structure can form an opening (the bottom is empty), which can receive water and shoot it out. Preferably, the side of the rotating disc is inclined surface structure, and the included angle between the inclined surface structure and the horizontal plane is preferably 0-60 degrees. Taking the rotating disc as a conical structure as an example, the included angle between the radius of the rotating disc and the horizontal plane is 0-60 degrees.

[0035] When the gas water heater works, the water generated by the condenser flows to the rotating disc through the water delivery structure, and the rotating disc is preferably open structure; the first driving device drives the rotating disc to rotate, the water is shot out and collides with the water collision device to form mist; the mist is discharged from the exhaust pipe, and the water removal of the gas water heater is completed.

[0036] In the present application, the shape and structure of the water pipe are not specifically limited, as long as the water can flow to the rotating disc without the need to set up a power equipment, thereby reducing energy utilization and achieving energy saving effect. The water in the condenser water collecting cavity is transported to the rotating disc through the water pipe, the motor drives the rotating disc to rotate, and the water is ejected with the rotating disc and collides with the water collision device, thereby being converted into water mist. No high energy consumption equipment such as air source and water pump needs to be set up, and the atomization function can be realized only by using the rotation of the rotating disc, which meets the original intention of energy saving design of the gas water heater. Especially, the mechanism of the rotating disc combined with the water collision device has low power requirement for the driving equipment, and the power supply of the existing conventional water heater can meet the requirement without the need to additionally set up a power supply.

[0037] The present application will be further described below in combination with the drawings and examples. The specific components involved are existing products, the specific components are provided with conventional mounting parts, and the connection, installation and use method between the specific components are conventional technologies. The driving equipment used in the present application is a motor (existing product, 27W), and no additional power supply is needed. The reserved power supply of the conventional gas water heater can meet the requirement.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application, for example, the terms "inverted", "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or position shown in the drawings and are used for convenience only in describing the embodiments, and cannot be understood as a limitation of the technical solutions.

[0039] The terms "first", "second", etc. in the claims and description of the present application or the above drawings are used to distinguish different objects, and are not used to describe a specific order.

[0040] Experimental method: under laboratory conditions, 1.3L of water was taken and added to the water collecting cavity for 20 minutes of experiment, only the water heater combustion control fan and motor (maximum speed) were started, and a small bucket was placed below the outlet of the smoke exhaust pipe to collect the dripping water; the water collected at the outlet of the smoke exhaust pipe is dripping water, which is one of the problems of the prior art. The rotating disc of the present application rotates, the water is ejected and collides with the water collision device to form mist, the mist is discharged from the smoke exhaust pipe, not only has high discharge efficiency, but also has high atomization ratio in the discharge process, and the dripping water phenomenon is alleviated. Atomization ratio = (1-dripping water collected at the outlet of the smoke exhaust pipe) / removed water x 100%; removed water = 1.3 - remaining water in the water collecting cavity; the unit of the above water is L.

[0041] In the control example, the smoke exhaust pipe is horizontal, and in the example, the outlet of the smoke exhaust pipe is inclined upward by 15°. Under the severe test condition that the smoke exhaust pipe is inclined upward by a certain angle, the drainage efficiency is still high, and the phenomenon of corrosion of the building surface caused by the condensate water droplets on the building surface is avoided. Example 1

[0042] As Figures 1 to 7 shown: A gas water heater comprises a condenser 1, a smoke exhaust pipe 2, a water removal module 3, and an exhaust pipe 4. The water removal module is located outside the condenser and is arranged in the exhaust pipe, and the exhaust pipe is communicated with the smoke exhaust pipe. The smoke exhaust pipe is communicated with the condenser through the upper surface of the condenser. The condenser is communicated with the combustion chamber, and the water pipe in the condenser is communicated with the water pipe of the combustion chamber. This is the conventional structure of the existing condensing gas water heater, and the water collecting cavity is located inside the condenser below. The exhaust pipe is another pipe arranged outside the condenser, one end of which is communicated with the smoke exhaust pipe, and the other end is provided with the water removal module.

[0043] The water removal module comprises a rotating disc 301, a water conveying structure 302, a first driving device 303, and a water collision device 304. The rotating disc is connected with the first driving device. The water conveying structure is communicated with the water collecting cavity of the condenser. The first driving device of the water removal module is horizontally fixed in the exhaust pipe through a fixed support. The fixed support and the specific installation method are conventional technologies, which can fix the first driving device without affecting the implementation of the technical effects of the present application. Figure 1 The water droplets are given as an example of water flowing from the water collecting cavity to the rotating disc.

[0044] The first driving device is a motor, and the surface (water receiving surface) of the rotating disc is a smooth structure. The body is a reverse cone, the apex is installed on the rotating shaft of the motor, and the angle between the radius of the rotating disc and the horizontal plane is 30 degrees, as shown in Figure 4 The angle is given to facilitate understanding by those skilled in the art, and the surface is open. In actual application, the structure of the rotating disc is not limited, as shown in Figure 5 The rotating disc structure is shown in (a) reverse cone structure, (b) reverse cone structure, (c) double reverse cone sandwich structure, and (d) double reverse cone sandwich structure. The structures of a to d (large above small) can be reversed to form a rotating disc with small above large, and the surface can be open or not. It is only an example; when the rotating disc is a double-layer structure, both rotating discs can receive water and shoot out.

[0045] The water collision device is a grid structure composed of two end fixed rings and the rectangular prism columns arranged at intervals, as shown in Figure 6 a, a` and Figure 7, the column width is 5mm, and the included angle of adjacent columns is 15°; the grid is a fixed installation structure, is fixed on the inner wall of the exhaust pipe through a mounting frame, is fixed, the mounting frame and specific installation method are conventional technologies, the grid can be fixed, and the implementation of the technical effects of the application is not affected. In the actual application process, the structure of the water collision device is not limited, which can be a cylindrical body, a circular truncated cone body or other shape structures, such as Figure 6 as shown in FIG. 1, which is a schematic diagram of a grid structure, wherein (a, a') is a vertical columnar grid cylindrical structure, (b, b') is a vertical columnar grid circular truncated cone structure, and (c, c') is an inclined angle columnar grid cylindrical structure, which is only an example and does not affect the implementation of the technical effects of the application.

[0046] The water delivery structure is a water pipe, one end of which is communicated with the water collecting cavity of the condenser, and the other end is arranged above the rotating disc at the center position of the rotating disc; the water flows to the rotating disc by itself, is shot out along with the rotating rotating disc, collides with the grid, and is thus changed into water mist, which is sucked to the outdoor by the exhaust gas under the action of the combustion control fan.

[0047] The experiment shows that the discharge efficiency is 986 mL / h, and the atomization ratio is 92.87%.

[0048] Comparative example The existing commercially available plant protection machine atomizing nozzle has better evaluation characteristics, and the atomizing effect is more suitable for machine mist cannon machines and pesticide spraying according to the product description, but the water is combined to the water heater, and the experiment shows that the effect is not good, the discharge efficiency is 589 mL / h, and the atomization ratio is 45.6%. Example two

[0049] On the basis of example one, the difference between the present embodiment is that the surface of the rotating disc is a concave-convex structure, which is a flow channel, and the rest is the same. As shown in FIG. 2, which is a schematic diagram of the flow channel structure of the surface of the rotating disc, a series of radial channels extending from the center of the circle to the edge of the disc. Whether it is this structure flow channel or other structure flow channel, the discharge efficiency is lower than 720 mL / h, and the atomization ratio is lower than 50%. Figure 8 Example three

[0050] On the basis of example one, the difference between the present embodiment is that the water collision device is a movable installation structure, which is arranged at the edge of the rotating disc and rotates along with the rotating disc, and the rest is the same. The test result is not as good as the existing commercially available product. Example four

[0051] On the basis of example one, the difference between the present embodiment is that the water collision device is a movable installation structure, which is arranged at the edge of the rotating disc and rotates along with the rotating disc, and the rest is the same. The test result is not as good as the existing commercially available product. Example five ​

[0052] The difference between the embodiment and the embodiment one is that the angle between the radius of the rotating disc and the horizontal plane is 60 degrees, and the rest is the same. The experiment shows that the discharge efficiency is 717 mL / h, and the atomization proportion is 91.4%. Embodiment six

[0053] The difference between the embodiment and the embodiment one is that the angle between the radius of the rotating disc and the horizontal plane is 45 degrees, and the rest is the same. The experiment shows that the discharge efficiency is 901 mL / h, and the atomization proportion is 91.9%. Embodiment seven

[0054] The difference between the embodiment and the embodiment one is that the water removal module is located in the condenser and does not have an exhaust pipe. Specifically, the motor is normally installed on the inner wall of the condenser, and the grid is located below the air outlet of the condenser. The rest is the same. Embodiment eight

[0055] The difference between the embodiment and the embodiment seven is that the condenser is provided with an exhaust pipe, and the motor is normally installed on the inner wall of the exhaust pipe port. The rest is the same. Embodiment nine

[0056] On the basis of the embodiment one, a filter is arranged in the water collecting cavity of the condenser and located at the water pipe port. The filter is used to filter impurities in the water. The filter is filled with neutralizing substances to neutralize the water and reduce acidity. The filter and the specific installation method are conventional technologies. Embodiment ten

[0057] On the basis of the embodiment one, a water level sensor is arranged in the water collecting cavity of the condenser to measure the height of the water in the water collecting cavity of the condenser. For example, the manufacturer sets a height value. When there is more water, the rotating disc is accelerated to improve the discharge efficiency of the water. The water level sensor and the specific installation method are conventional technologies.

[0058] As common sense, the gas water heater has the basic components and structures of conventional gas water heaters, such as a central controller 5, a water pipe 6, a combustion chamber 7, a heat exchanger 8, a combustion control fan 9, the connection method between the specific components, and the control method of the central controller are conventional technologies. Some conventional components are not shown in the present application. Those skilled in the art can make conventional selection according to the technical idea of the present application. The connection method of the exhaust pipe and the exhaust pipe is conventional technology, such as sleeving, bonding and welding, which does not affect the realization of the technical effect of the present application. In the present embodiment, the upper end of the exhaust pipe is welded in communication with the exhaust pipe, or the exhaust pipe is inserted into the upper end of the exhaust pipe.

[0059] The central controller can control the opening and closing and the rotating speed of the motor, which is a conventional technology. Embodiment eleven

[0060] In the embodiment one, the difference of the present embodiment is that the motor rotating shaft is further provided with a fan blade 305, as shown in the figure, and the rest is the same. Compared with the embodiment one, the water mist discharging speed is accelerated, and the water discharging efficiency is improved. The exhaust gas and the water mist discharging speed is accelerated. Figure 9 Embodiment twelve

[0061] The cold water heating and water removing process of the gas water heater is as follows: (1) The gas water heater starts to work, the tap water enters the heat exchanger through the condenser, and the natural gas heats the heat exchanger to heat the cold water, and at the same time, high-temperature flue gas is generated; the motor starts to work, and the rotating disc rotates; (2) The high-temperature flue gas enters the condenser under the action of the combustion control fan, and the cold water is preheated, and the water produced by the high-temperature flue gas in the condenser enters the water collecting cavity; (3) The water in the condenser water collecting cavity flows to the rotating disc, and the water is shot out with the rotating rotating disc, and collides with the grid, so as to change into water mist; (4) The water mist enters the exhaust pipe under the action of the combustion control fan and is discharged to the outdoor.

[0062] Further, the conventional controller can be used to control the work of the motor, and the water collecting cavity of the condenser is provided with a water level sensor. When the water in the condenser water collecting cavity reaches the set height, the central control unit controls the motor to accelerate, and the rotating speed of the rotating disc is accelerated, and the water is removed.

[0063] ​The prior art discloses a gas water heater, which atomizes water by setting a conventional high-pressure atomizing nozzle (68.4W), and a fan (14.4W) is used to accelerate the water mist to be discharged from the smoke exhaust pipe, so that the water discharge purpose is achieved. According to the use method, experiments show that the discharge efficiency is 940 mL / h, the atomization ratio is less than 40%, and the auxiliary fan is needed, otherwise the discharge efficiency is less than 500 mL / h. The present application discloses a gas water heater and a water removal method thereof, the gas water heater comprising a water removal module and a conventional combustion chamber, a condenser and a smoke exhaust pipe; the water removal module is located in or outside the condenser, comprising a rotating disc, a water conveying structure, a first driving device and a water collision device, without a water pump; the rotating disc is connected with the first driving device, the water collision device is located at the edge or outside of the rotating disc, and the water conveying structure is in communication with a water collecting cavity of the condenser. The present application can atomize and discharge the water mist in the water collecting cavity, and the atomization ratio is more than 90%, which effectively alleviates the dripping phenomenon of the existing atomizing device used for water removal of the gas water heater, and avoids the environmental problems caused by water dripping. The present application can effectively discharge the water in the gas water heater with low energy consumption, without the need for additional power supply; in particular, the present application does not need to set a power device, so that the water flows to the rotating disc by itself, which takes into account the water removal efficiency and low energy consumption, and also reduces the cost of consumables, and can completely discharge the water.

[0064] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A gas water heater comprising a condenser, an exhaust pipe; characterized in that: Also include a water removal module; the water removal module is located in the condenser or outside the condenser; when the water removal module is located outside the condenser, also includes an exhaust pipe, the exhaust pipe is communicated with the exhaust pipe; the water removal module includes a rotating disc, water transport structure, first driving device, water collision device; the rotating disc is connected with the first driving device, and the water collision device is located at the edge or outside of the rotating disc; the water transport structure is communicated with the water collecting cavity of the condenser.

2. The gas water heater of claim 1, wherein: The water transport structure includes a water pipe, one end of the water pipe is communicated with the water collecting cavity of the condenser, and the other end is placed above the rotating disc.

3. The gas water heater of claim 1, wherein: The surface of the rotating disc is smooth structure or concave-convex structure; the water collision device is a grid structure; the water collision device is a fixed installation structure or a movable installation structure.

4. The gas water heater of claim 3, wherein: The side of the rotating disc is a slope structure; the grid structure is a ring grid structure; the first driving device is also provided with a fan blade.

5. The gas water heater of claim 4, wherein: The included angle between the slope structure and the horizontal plane is 0-60 degrees.

6. The gas water heater of claim 1, wherein: When the water removal module is located in the condenser, also includes an exhaust pipe, the exhaust pipe is communicated with the exhaust pipe.

7. The gas water heater according to claim 1 or 6 wherein: The water collision device is partially or entirely located in the exhaust pipe.

8. A water removal module for a gas water heater, characterized by: Include a rotating disc, water transport structure, first driving device, water collision device; the rotating disc is connected with the first driving device, and the water collision device is located at the edge or outside of the rotating disc.

9. The application of the water removal module for gas water heater in the water removal process of gas water heater.

10. The method of removing water from the gas water heater of claim 1, wherein, Including the following steps: When the gas water heater works, the water produced by the condenser flows to the rotating disc by the water transport structure; the first driving device drives the rotating disc to rotate, the water is shot out and collides with the water collision device to form mist; the mist is discharged from the exhaust pipe, and the water removal of the gas water heater is completed.

Images