Alternating magnetic field eddy current heating water heating air heater

Abstract

The invention discloses an alternating magnetic field eddy current heating water heating air heater, which relates to the technical field of air heaters and comprises a temperature rise container, an electromagnetic coil, a high-frequency power supply, a heat exchanger, a circulating pump and a fan, the electromagnetic coil is wound outside the temperature rise container, and water in the temperature rise container is heated through a high-frequency power supply and the electromagnetic coil in a high-energy-efficiency heating mode of forming eddy current in the temperature rise container; the temperature rise container is connected with the heat exchanger through a pipeline and a circulating pump to form a water circulation heat supply passage, heat of heated water is transferred through the heat exchanger, and air is exhausted through a fan, so that air absorbs heat through the heat exchanger, and warm air is blown out; according to the warm air blower, the problems that warm air blown out by a traditional warm air blower is dry and the temperature of an air supply outlet is high are solved through a water heating circulation system, the sent-out warm air keeps certain moisture, wet warm air at the temperature of 20-45 DEG C is provided, and meanwhile the warm air blower has the advantages of being efficient, capable of saving energy, safe and the like.

Description

Technical Field

[0001] The invention relates to the technical field of air heaters, and in particular to an alternating magnetic field eddy current heating water heating air heater. Background Art

[0002] A household fan heater is a household appliance that converts electricity, gas or other energy into heat and delivers heat to the room through a fan. It is widely used for heating in winter. With the advancement of technology and the diversification of user needs, the technology and application development of household fan heaters are as follows:

[0003] Technically, it uses high-efficiency heating elements: ceramic PTC (positive temperature coefficient) heating materials, which have higher heat conversion efficiency and lower energy consumption than traditional resistance wire heating. With intelligent temperature control technology: the temperature sensor monitors the indoor temperature in real time to achieve precise control and avoid unnecessary energy waste.

[0004] In terms of safety, overheat protection: equipped with overheat power-off function to effectively prevent fire risks. Tipping power-off design: the heater automatically cuts off the power supply when it tips over, increasing safety.

[0005] In terms of noise control, low-noise fans and silent motors are introduced, and the air duct design is optimized to minimize operating noise and improve user experience.

[0006] In terms of function, the heater is not limited to heating, but can also have functions such as air purification, humidification, and clothes drying to meet the diverse needs of households.

[0007] With the improvement of living standards, people have an increasing demand for heating equipment, especially in areas with colder climates or in homes without central heating. They are generally used in living rooms, bedrooms, bathrooms and other scenarios to meet the needs of different family members. In some commercial places, such as small offices and shops, it is also convenient to use household heaters.

[0008] However, existing air heaters basically use heating elements that directly heat the air, and then use fans to blow out the warm air. The heating elements used are generally PTC heating elements, graphene heating plates, electric heating wire heating elements, quartz tube heating elements, halogen tube heating elements, etc. Since the heating elements directly heat the air, the moisture in the blown warm air is evaporated, and the blown warm air is dry and has a high temperature. Users cannot blow directly at the air heater at a close distance. Blowing directly at a long distance may easily cause the user's skin to become dry, itchy, or even cracked due to long-term contact with the blown warm air.

[0009] In summary, it is found that the prior art has at least the following technical problems:

[0010] Existing air heaters have the problem that the warm air blown out is too dry and the temperature of the air outlet is high, resulting in the problem that the warm air cannot be exposed for a long time or heating is performed at close range. Summary of the invention

[0011] The purpose of the present invention is to provide an alternating magnetic field eddy current heating water heater to solve the problem that the existing heaters have the problem that the warm air blown out is too dry and the air outlet temperature is too high, resulting in the inability to be exposed to the warm air for a long time and to heat at close range.

[0012] The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0013] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0014] The present invention provides an alternating magnetic field eddy current water heating hot air blower, comprising a temperature rise container for containing water, the temperature rise container being a sealed container; and an electromagnetic coil, the electromagnetic coil being wound around the outer wall of the temperature rise container, an insulating layer being arranged between the electromagnetic coil and the outer wall of the temperature rise container; since the temperature rise container is arranged at the axis of the electromagnetic coil, current is passed through the electromagnetic coil to form eddy currents in the metal of the temperature rise container, and to heat the metal of the temperature rise container, thereby transferring heat to the water contained in the temperature rise container; and a high-frequency power supply, the high-frequency power supply being electrically connected to the electromagnetic coil. The high-frequency power supply is used to provide a high-frequency current to the electromagnetic coil, and the heating power of the electromagnetic coil is controlled by controlling the output current or output frequency of the high-frequency power supply; the vertical top of the temperature rise container is provided with a water supply port and a hot water outlet, and the bottom is provided with a cold water return port; and a heat exchanger, the water inlet port of the heat exchanger is connected with the hot water outlet of the temperature rise container through a pipeline, and the water outlet port of the heat exchanger is connected with the cold water return port of the temperature rise container through a pipeline; a circulating pump is provided on the pipeline connecting the hot water outlet of the temperature rise container and the water inlet port of the heat exchanger; the temperature rise container, the circulating pump and The heat exchanger and the connected pipes constitute a water circulation heating passage, the circulation pump provides power for the water in the water circulation heating passage; and a fan with adjustable wind speed, the fan is arranged on the side of the water inlet port of the heat exchanger, the flow direction of the wind produced by the fan is from the side of the water outlet port of the heat exchanger to the side of the water inlet port of the heat exchanger, and is used to make cold air flow through the heat exchanger and blow out warm air; by controlling the high-frequency power supply, the electromagnetic coil, the circulation pump and the fan, the high-frequency power supply and the electromagnetic coil work together to heat the water in the temperature rise container, and the circulation pump is used to heat the water in the temperature rise container. Hot water is pumped out from the hot water outlet, and the heated water is directed to the water inlet port of the heat exchanger. The heated water flows through the entire heat exchanger and heats the heat exchanger. The heated water flows out from the water outlet port of the heat exchanger and then flows back to the cold water return port. The heated water provides heat for the heat exchanger, and the fan is used to provide fast-flowing air to blow out the heat accumulated on the heat exchanger, providing warm air with a temperature of 20-45°C. Before starting the circulation pump to pump water, the water in the temperature rise container is heated to at least 35°C. Before starting the fan, the heated water needs to flow through the heat exchanger for at least 1 minute.

[0015] In one of the embodiments, the temperature rise container is cylindrical in shape.

[0016] In one of the embodiments, the water in the temperature raising container is heated to a maximum of 45°C.

[0017] In one embodiment, the heat exchanger is a finned heat exchanger.

[0018] In one of the embodiments, a water inlet valve is installed on the pipe connected to the water replenishment port of the temperature rise container.

[0019] In one of the embodiments, a drain valve, an exhaust valve, a water level and water temperature sensor, a first temperature sensor, a second temperature sensor, a display screen, a controller and an interactive input unit are further provided; the controller is electrically connected to the display screen, the high-frequency power supply, the circulating pump, the fan, the water inlet valve, the drain valve, the water level and water temperature sensor, the exhaust valve, the first temperature sensor, the second temperature sensor and the interactive input unit respectively; the drain valve is connected to the temperature rise container at the bottom of the temperature rise container in the vertical direction through a pipeline; the exhaust valve is connected to the temperature rise container at the top of the temperature rise container in the vertical direction, and is used to detect the air pressure in the temperature rise container and return the air pressure data to the controller. The controller determines that the air pressure in the temperature rise container exceeds the preset air pressure data and controls the exhaust valve to automatically exhaust; the first temperature sensor is arranged on the air inlet side of the heat exchanger to measure the temperature of the incoming cold air; the second temperature sensor is arranged with the fan The water level and water temperature sensor is configured to measure the temperature of the warm air at the outlet of the heat rise container; the end of the water level and water temperature sensor extends from the top of the temperature rise container in the vertical direction, and is configured to measure the water level and water temperature data in the temperature rise container, and return the measured water level and water temperature data to the controller; the interactive input unit is configured to send the adjustment instruction set by the user to the controller; the controller feeds back the received adjustment instruction information and the current control information of each component to the display and displays them on the display; the controller determines whether the current water level in the temperature rise container reaches the top of the inner wall of the temperature rise container, determines the current water temperature, and controls the start and stop of the circulating water pump and the fan, as well as the working power of the circulating water pump and the fan, and accurately adjusts the temperature of the warm air blown out by the fan according to the temperature data of the air inlet and air outlet sides of the heat exchanger returned by the first temperature sensor and the second temperature sensor, combined with the water temperature in the temperature rise container, the pumping speed of the circulating pump and the exhaust speed of the fan.

[0020] In one of the embodiments, after the controller receives the scale cleaning instruction from the interactive input unit, it controls the high-frequency power supply to make the electromagnetic coil heat the water in the temperature rise container to 70-80°C, starts the circulation pump to pump out the water in the temperature rise container and circulate it for at least 3 minutes, then controls the drain valve to open, and based on the returned water level information, determines that the water level drops below 20%, opens the water inlet valve to replenish water for at least 10 minutes, then closes the drain valve, and closes the water inlet valve after the water level rises to the top of the temperature rise container to complete the scale cleaning instruction.

[0021] In one embodiment, the interactive input unit includes any one of a touch input device and a physical key mechanism.

[0022] In one of the embodiments, a pipe connected to the circulation pump extends from the hot water outlet into the temperature rise container.

[0023] In one embodiment, the temperature rise container is a container containing iron materials.

[0024] The beneficial effects of the present invention are as follows:

[0025] The present invention solves the problem that the warm air blown by the existing warm air blower is too dry and cannot be used for a long time by adopting the technical solution of heating the water-heating hot air blower with alternating magnetic field eddy current.

[0026] (1) The warm air blown out is moist and comfortable; the electromagnetic coil is combined with a metal temperature rise container, and the eddy current is used to heat the water, and the hot water is supplied to transfer the heat through the heat exchanger, and the heat is transferred to the wind pumped by the fan, so that the wind passing through the heat exchanger is slowly heated, and most of the moisture in the wind can be retained, so that the blown warm air will not be too dry. The warm air naturally carries a certain amount of moisture, which improves the problem of dry warm air and overheating of the air outlet of traditional heaters, making it impossible for the user's skin to directly contact the warm air at close range and for a long time, and avoiding the user's skin Itching, cracking due to dry warm air, and burns caused by overheating of the air outlet.

[0027] (2) Efficient and uniform heating: The electromagnetic coil is driven by a high-frequency power supply to directly heat the metal temperature rise container to achieve efficient heat energy conversion; the temperature rise container cooperates with a circulation pump and a heat exchanger to form a water circulation heating path, and the air drawn by the fan is indirectly and slowly heated by the heat exchanger, so that the heat is more evenly distributed in the wind. The warm air temperature is stabilized between 20-45°C, which is more suitable for long-term, direct-blowing heating, and it can also be heated at a close distance facing the warm air outlet.

[0028] (3) Energy saving and safety performance improvement: By using high-frequency power supply, electromagnetic coil and metal temperature rise container, eddy current is formed on the temperature rise container. Eddy current heating has the characteristics of rapid heating, and the heating power can be accurately controlled by high-frequency power supply. With temperature feedback, the air supply temperature can be accurately adjusted to avoid energy waste. At the same time, the design of water circulation heating reduces the risk of local overheating of the heater equipment, further improving the safety of the equipment, making the heating safety of the alternating magnetic field eddy current heating water heater safer than that of traditional heaters, reducing the chance of fire.

[0029] (4) Intelligence and adjustability: Through the coordinated work of high-frequency power supply, fan and circulation pump, the alternating magnetic field eddy current heating water heating hot air blower supports multi-level power adjustment and wind speed adjustment to meet the needs of different users and usage scenarios, further enhancing the practicality of the product and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 is a schematic structural diagram of a first embodiment of the present invention;

[0032] Figure 2 It is a schematic structural diagram of the second embodiment of the present invention.

[0033] The reference numerals are as follows:

[0034] 1. Temperature rise container; 11. Water supply port; 12. Hot water outlet; 13. Cold water return port;

[0035] 2. Electromagnetic coil;

[0036] 3. High frequency power supply;

[0037] 4. Heat exchanger; 41. Water inlet port; 42. Water outlet port;

[0038] 5. Circulation pump;

[0039] 6. Fan;

[0040] 71. Water inlet valve; 72. Drain valve; 73. Exhaust valve; 74. Water level and water temperature sensor; 75. First temperature sensor; 76. Second temperature sensor;

[0041] 8. Display screen;

[0042] 9. Controller. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0044] In a specific embodiment, an alternating magnetic field eddy current heating water-heating hot air blower is provided, which is provided with a temperature rise container, an electromagnetic coil, a high-frequency power supply, a heat exchanger, a circulation pump and a fan; the electromagnetic coil is wound around the outside of the temperature rise container, and the water inside the temperature rise container is heated by a high-frequency power supply and the electromagnetic coil using a high-efficiency heating method that forms an eddy current inside the temperature rise container; the temperature rise container and the heat exchanger are connected to the circulation pump through a pipeline to form a water circulation heating passage, and the heated water transfers heat through the heat exchanger and is drawn by the fan, so that the wind absorbs heat through the heat exchanger and blows out the warm air; the heater solves the problem of dry warm air and high air outlet temperature blown out by a traditional heater through a water heating circulation system, so that the delivered warm air maintains a certain moisture content, provides humid warm air at 20-45°C, and has the advantages of high efficiency, energy saving, and safety.

[0045] In addition, all the contents of the configurations shown in the following embodiments are not necessarily limited to the solutions of the invention described in the claims.

[0046] The first embodiment of the alternating magnetic field eddy current heating water heating hot air blower 6 is as follows Figure 1As shown, it includes a temperature rise container 1 for containing water, the temperature rise container 1 is a sealed container; and an electromagnetic coil 2, the electromagnetic coil 2 is wound on the outer wall of the temperature rise container 1, and an insulating layer is arranged between the electromagnetic coil and the outer wall of the temperature rise container 1; because the temperature rise container 1 is arranged at the axis of the electromagnetic coil 2, the electromagnetic coil 2 is passed through the current to form eddy current in the metal of the temperature rise container 1, and the metal of the temperature rise container 1 is heated, and the heat is transferred to the water loaded in the temperature rise container 1; and a high-frequency power supply 3, the high-frequency power supply 3 is electrically connected to the electromagnetic coil 2, and is used to provide high-frequency current to the electromagnetic coil 2, and The heating power of the electromagnetic coil 2 is controlled by controlling the output current or output frequency of the high-frequency power supply 3; the top of the temperature rise container 1 is provided with a water supply port 11 and a hot water outlet 12, and the bottom is provided with a cold water return port 13; and a heat exchanger 4, the water inlet port 41 of the heat exchanger 4 is connected with the hot water outlet 12 of the temperature rise container 1 through a pipeline, and the water outlet port 42 of the heat exchanger 4 is connected with the cold water return port 13 of the temperature rise container 1 through a pipeline; a circulation pump 5 is provided on the pipeline connecting the hot water outlet 12 of the temperature rise container 1 and the water inlet port 41 of the heat exchanger 4; the temperature rise container 1, the circulation The pump 5, the heat exchanger 4 and the connected pipes constitute a water circulation heating passage, and the circulation pump 5 provides power for the water in the water circulation heating passage; and the fan 6 is arranged on the side of the water inlet port 41 of the heat exchanger 4, and the flow direction of the wind created by the fan 6 is from the side of the water outlet port 42 of the heat exchanger 4 to the side of the water inlet port 41 of the heat exchanger 4, which is used to make cold air flow through the heat exchanger 4 and blow out warm air; by controlling the high-frequency power supply 3, the electromagnetic coil 2, the circulation pump 5 and the fan 6, the high-frequency power supply 3 and the electromagnetic coil 2 work together to heat the water in the temperature rise container 1, and the circulation pump 5 is used to transfer the heated water from the heat rise container 1 to the heat rise container 1. The water outlet 12 is drawn out, and the heated water is directed to the water inlet port 41 of the heat exchanger 4. The heated water flows through the entire heat exchanger 4 and heats the heat exchanger 4. The heated water flows out from the water outlet port 42 of the heat exchanger 4, and then flows back to the cold water return port 13; the heated water provides heat for the heat exchanger 4, and the fan 6 is used to provide fast-flowing air to blow out the heat accumulated on the heat exchanger 4, providing warm air with a temperature of 20-45°C; before starting the circulation pump 5 to pump water, the water in the temperature rise container 1 is heated to at least 35°C; before starting the fan 6, the heated water needs to flow through the heat exchanger 4 for at least 1 minute.

[0047] In particular, the temperature rise container 1 is a full metal container, or a composite container with a high temperature resistant non-metal exterior and a metal structure for heating inside; further, the temperature rise container 1 is a container containing iron materials.

[0048] In order to cooperate with the alternating magnetic field eddy current heating water heating hot air blower 6, the output of the high-frequency power supply 3 is adjustable in order to achieve stepless adjustment of the warm air outlet temperature within the range of 20-45°C, while achieving the highest energy efficiency, thereby achieving the effect of saving electricity; the fan 6 is also a fan 6 with adjustable wind speed.

[0049] The present invention solves the problem that the warm air blown by the existing warm air blower is too dry and cannot be used for a long time by adopting the technical solution of heating the water-heating hot air blower 6 with an alternating magnetic field eddy current.

[0050] (1) The warm air blown out is moist and comfortable; the electromagnetic coil 2 cooperates with the metal temperature rise container 1, and uses the eddy current to heat the water, and then supplies the hot water to transfer the heat through the heat exchanger 4, and transfers the heat to the wind pumped by the fan 6, so that the wind passing through the heat exchanger 4 is slowly heated, and most of the moisture in the wind can be retained, so that the blown warm air will not be too dry. The warm air naturally carries a certain amount of moisture, which improves the problem of dry warm air and overheating of the air outlet of the traditional heater, making it impossible for the user's skin to directly contact the warm air at close range and for a long time, and avoiding the user's skin itching and cracking caused by dry warm air, and burns caused by overheating of the air outlet.

[0051] (2) Efficient and uniform heating: The electromagnetic coil 2 is driven by the high-frequency power supply 3 to directly heat the metal temperature rise container 1, thereby realizing efficient heat energy conversion; the temperature rise container 1 cooperates with the circulation pump 5 and the heat exchanger 4 to form a water circulation heating passage, and indirectly and slowly heats the air pumped by the fan 6 through the heat exchanger 4, so that the heat is more evenly distributed in the wind, and the warm air temperature is stabilized between 20-45°C, which is more suitable for long-term, direct-blowing heating, and it is also possible to heat the air at a close distance facing the warm air outlet.

[0052] (3) By using a high-frequency power supply 3, an electromagnetic coil 2 and a metal temperature rise container 1, an eddy current is formed on the temperature rise container 1. The eddy current heating has the characteristics of rapid temperature rise, and the heating power can be accurately controlled by the high-frequency power supply 3. With the temperature feedback, the air supply temperature can be accurately adjusted to avoid energy waste. At the same time, the design of water circulation heating reduces the risk of local overheating of the heater equipment, further improving the safety of the equipment, so that the heating safety of the alternating magnetic field eddy current heating water heater 6 is safer than that of the traditional heater, reducing the chance of fire.

[0053] (4) Through the coordinated work of the high-frequency power supply 3, the fan 6 and the circulation pump 5, the alternating magnetic field eddy current heating water heater 6 supports multi-level power regulation and wind speed regulation to meet different user needs and usage scenarios, further enhancing the practicality of the product and user experience.

[0054] As one optional implementation,

[0055] Regarding the shape of the above-mentioned temperature rise container 1, Figure 1 As shown, the temperature rise container 1 is cylindrical in shape. The temperature rise container 1 is cylindrical in shape, which facilitates the electromagnetic coil 2 to be wound around the temperature rise container 1, avoids the device around which the electromagnetic coil 2 is wound with edges and corners, and prevents the insulation layer of the electromagnetic coil 2 from being scratched.

[0056] Regarding the temperature of the water in the temperature-raising container 1, the water in the temperature-raising container 1 is heated to a maximum of 45° C. The energy efficiency of the electromagnetic coil 2 heating the water temperature and the heat exchanger 4 heating the air can be balanced, and the temperature of the heat exchanger 4 can be prevented from being too high, so that the heated air retains a certain amount of moisture and the warm air outflowing is prevented from being too dry.

[0057] Regarding the specific structure of the heat exchanger 4, the heat exchanger 4 is a finned heat exchanger 4. The finned heat exchanger 4 is used to form heat exchange with the wind through the fins, and the heat is transferred from the hot water output from the temperature rise container 1 to the wind drawn by the fan 6; specifically, the fins of the finned heat exchanger 4 are extended secondary heat transfer surfaces, so the heat transfer process is not only carried out on the baffle as the primary heat transfer surface, but also on the fins, thereby increasing the heat transfer area and improving the heat transfer efficiency; and because the secondary heat transfer is achieved through the fins, the heat transfer levels are multiple, and the heat transfer area of ​​the fins is also larger, the volume of the heat exchanger 4 can be made smaller, which is conducive to small integration, and can be integrated on a household mobile heater, with a compact structure and high heat transfer efficiency.

[0058] Regarding the structure of how the circulation pump 5 extracts hot water from the temperature rise container 1 , a pipe connected to the circulation pump 5 extends from the hot water outlet 12 into the temperature rise container 1 .

[0059] A second embodiment of the alternating magnetic field eddy current heating water heating fan 6 is as follows Figure 2 As shown, the difference between this embodiment and the first embodiment is that, in the alternating magnetic field eddy current water heating hot air blower 6, a water inlet valve 71 is installed on the pipe connected to the water replenishment port 11 of the temperature rise container 1.

[0060] The alternating magnetic field eddy current heating water heater 6 is also provided with a drain valve 72, an exhaust valve 73, a water level and water temperature sensor 74, a first temperature sensor 75, a second temperature sensor 76, a display screen 8, a controller 9 and an interactive input unit; the controller 9 is electrically connected to the display screen 8, the high-frequency power supply 3, the circulating pump 5, the fan 6, the water inlet valve 71, the drain valve 72, the water level and water temperature sensor 74, the exhaust valve 73, the first temperature sensor 75, the second temperature sensor 76 and the interactive input unit respectively; the drain valve 72 is connected to the temperature rise container 1 at the bottom of the temperature rise container 1 in the vertical direction through a pipeline; the exhaust valve 73 is connected to the temperature rise container 1 at the top of the temperature rise container 1 in the vertical direction, and is used to detect the air pressure in the temperature rise container 1 and return the air pressure data to the controller 9. The controller 9 determines that the air pressure in the temperature rise container 1 exceeds the preset air pressure data and controls the exhaust valve 73 to automatically exhaust; the first temperature sensor 75 is arranged on the air inlet side of the heat exchanger 4 to measure the temperature of the incoming cold air; the second temperature The temperature sensor 76 is arranged on the outlet side of the fan 6 to measure the temperature of the warm air at the outlet; the end of the water level and water temperature sensor 74 extends from the top of the temperature rise container 1 in the vertical direction to measure the water level and water temperature data in the temperature rise container 1, and returns the measured water level and water temperature data to the controller 9; the interactive input unit is used to send the adjustment command set by the user to the controller 9; the controller 9 feeds back the received adjustment command information and the current control information of each component to the display and displays it on the display; the controller 9 determines whether the current water level in the temperature rise container 1 reaches the top of the inner wall of the temperature rise container 1, determines the current water temperature, and controls the start and stop of the circulating water pump and the fan 6, as well as the working power of the circulating water pump and the fan 6, according to the temperature data of the air inlet and air outlet sides of the heat exchanger 4 returned by the first temperature sensor 75 and the second temperature sensor 76, combined with the water temperature in the temperature rise container 1, the pumping speed of the circulating pump 5 and the exhaust speed of the fan 6, accurately adjusts the temperature of the warm air blown out by the fan 6.

[0061] Regarding the setting of the above-mentioned interactive input unit, the interactive input unit includes any one of a touch input device or a physical key mechanism.

[0062] During application, the touch input device may be a touch screen integrated on the heater or a remote controller; the physical button mechanism may be a button island integrated on a control panel of the heater or a remote controller.

[0063] In particular, due to the long-term use of the heater, there is a lot of water scale, and the heater can also be directly connected to an external water source; after long-term use, scale is bound to accumulate inside the temperature rise container 1, and the accumulation of scale will affect the contact area between the inside of the temperature rise container 1 and the heated water, resulting in reduced heat transfer efficiency, thereby increasing energy consumption, increasing the start-up time of the heater, and reducing the air outlet effect of the warm air. For the controller 9 to intelligently execute the control logic of cleaning the scale in the temperature rise container 1, the controller 9 receives the interactive input unit to clean the scale After the instruction, the high-frequency power supply 3 is controlled to make the electromagnetic coil 2 heat the water in the temperature rise container 1 to 70-80°C, and the circulation pump 5 is started with 80% pumping power to pump out the water in the temperature rise container 1 and circulate it for at least 3 minutes. Then, the drain valve 72 is controlled to open. According to the returned water level information, after judging that the water level drops below 20%, the water inlet valve 71 is opened to replenish water for at least 10 minutes. At this time, the drain valve 72 remains open; then the drain valve 72 is closed, and the water inlet valve 71 is closed after the water level rises to the top of the temperature rise container 1 to complete the scale cleaning instruction.

[0064] The control logic for cleaning the scale of the heat exchanger 4 is the same as that of the temperature rise container 1. After the heater has been used for a long time, due to the poor quality of the water introduced, the heat exchanger 4, as one of the components through which the hot water passes, will also accumulate scale. The heat exchanger 4 also needs to execute the instruction to clean the scale, so as to clean the scale of the heat exchanger 4 and avoid the accumulation of scale in the heat exchanger 4, which will cause the contact area between water and the inner wall of the heat exchange tube of the heat exchanger 4 to decrease, and avoid the heat exchange efficiency of the heat exchanger 4 to decrease, thereby maintaining the heat exchange efficiency of the heat exchanger 4. Specifically, scale is generally mainly accumulated in the container for directly heating hot water, so when the controller 9 receives the instruction to clean the scale once, the controller 9 determines that it receives the instruction to clean the scale for the second time, and adjusts the control logic for cleaning the scale.

[0065] The controller 9 is set to receive the interactive input unit's descaling instruction twice as one cycle. Whenever the controller 9 receives the interactive input unit's descaling instruction for the first time, the controller 9: controls the high-frequency power supply 3 to make the electromagnetic coil 2 heat the water in the temperature rise container 1 to 70-80°C, starts the circulation pump 5 with 80% pumping power, so that the water in the temperature rise container 1 is pumped out and circulated for at least 3 minutes, controls the drain valve 72 to open, and according to the returned water level information, after judging that the water level drops below 20%, opens the water inlet valve 71 to replenish water for at least 10 minutes, and the drain valve 72 remains open at this time; then closes the drain valve 72, and closes the water inlet valve 71 after the water level rises to the top of the temperature rise container 1 to complete the descaling instruction.

[0066] Whenever the controller 9 receives the instruction of cleaning scale from the interactive input unit for the second time, it controls the high-frequency power supply 3 to make the electromagnetic coil 2 heat the water in the temperature rise container 1 to 90°C, starts the circulation pump 5 with 100% pumping power, and makes the water in the temperature rise container 1 pump out and circulate for at least 5 minutes, then controls the drain valve 72 to open, and according to the returned water level information, after judging that the water level drops below 10%, opens the water inlet valve 71 to replenish water for at least 10 minutes, at which time the drain valve 72 remains open; then closes the drain valve 72, and closes it after the water level rises to the top of the temperature rise container 1. Close the water inlet valve 71; control the high-frequency power supply 3 again to make the electromagnetic coil 2 heat the water in the temperature rise container 1 to 60°C, start the circulation pump 5 with 100% pumping power, so that the water in the temperature rise container 1 is pumped out and circulated for at least 10 minutes, then control the drain valve 72 to open, and according to the returned water level information, judge that the water level drops below 20%, open the water inlet valve 71 to replenish water for at least 10 minutes, and at this time, keep the drain valve 72 open; then close the drain valve 72, and close the water inlet valve 71 after the water level rises to the top of the temperature rise container 1, and complete the scale cleaning instruction.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. An alternating magnetic field eddy current heating water heating hot air blower, characterized in that: It includes a temperature-raising container for containing water, wherein the temperature-raising container is a sealed container; and an electromagnetic coil, the electromagnetic coil is wound on the outer wall of the temperature rise container, an insulating layer is arranged between the battery coil and the outer wall of the temperature rise container; since the temperature rise container is arranged at the axis of the electromagnetic coil, the electromagnetic coil is passed with current to form eddy current in the metal of the temperature rise container, so as to heat the metal of the temperature rise container and transfer the heat to the water loaded in the temperature rise container; and a high-frequency power supply, the high-frequency power supply being electrically connected to the electromagnetic coil and configured to provide a high-frequency current to the electromagnetic coil and control the heating power of the electromagnetic coil by controlling an output current or an output frequency of the high-frequency power supply; The vertical top of the temperature rise container is provided with a water replenishment port and a hot water outlet, and the bottom is provided with a cold water return port; and a heat exchanger, wherein the water inlet port of the heat exchanger is connected to the hot water outlet of the temperature rise container through a pipeline, and the water outlet port of the heat exchanger is connected to the cold water return port of the temperature rise container through a pipeline; a circulation pump is provided on the pipeline connecting the hot water outlet of the temperature rise container and the water inlet port of the heat exchanger; The temperature rise container, the circulation pump, the heat exchanger and the connected pipes constitute a water circulation heating passage, and the circulation pump provides power for the water in the water circulation heating passage; and a fan with adjustable wind speed, the fan being arranged on the side of the water inlet port of the heat exchanger, the wind produced by the fan flowing from the side of the water outlet port of the heat exchanger to the side of the water inlet port of the heat exchanger, for making cold wind flow through the heat exchanger and blowing out warm air; By controlling the high-frequency power supply, the electromagnetic coil, the circulation pump and the fan, the high-frequency power supply and the electromagnetic coil work together to heat the water in the temperature rise container, the circulation pump is used to extract the heated water from the hot water outlet, the heated water is directed to the water inlet port of the heat exchanger, the heated water flows through the entire heat exchanger and heats the heat exchanger, the heated water flows out from the water outlet port of the heat exchanger, and then flows back to the cold water return port; the heated water provides heat for the heat exchanger, the fan is used to provide fast-flowing air, the heat accumulated on the heat exchanger is blown out, and warm air with a temperature of 20-45°C is provided; Before starting the circulating pump to pump water, the water in the temperature rise container is heated to at least 35°C; Before starting the fan, the heated water needs to flow through the heat exchanger for at least 1 minute.

2. The alternating magnetic field eddy current heating water heating hot air blower according to claim 1, characterized in that: The temperature rise container is cylindrical in shape.

3. The alternating magnetic field eddy current heating water heating hot air blower according to claim 1, characterized in that: The water in the temperature rise container is heated to 45° C. at most.

4. The alternating magnetic field eddy current heating water heating hot air blower according to claim 1, characterized in that: The heat exchanger is a finned heat exchanger.

5. The alternating magnetic field eddy current heating water heating hot air blower according to claim 1, characterized in that: A water inlet valve is installed on the pipeline connected to the water replenishment port of the temperature rise container.

6. The alternating magnetic field eddy current water heating hot air blower according to claim 5, characterized in that: A drain valve, an exhaust valve, a water level and water temperature sensor, a first temperature sensor, a second temperature sensor, a display screen, a controller and an interactive input unit are also provided; the controller is electrically connected to the display screen, the high-frequency power supply, the circulation pump, the fan, the water inlet valve, the drain valve, the water level and water temperature sensor, the exhaust valve, the first temperature sensor, the second temperature sensor and the interactive input unit respectively; The drain valve is connected to the temperature rise container through a pipeline at the bottom of the temperature rise container in the vertical direction; The exhaust valve is connected to the temperature rise container at the top of the temperature rise container in the vertical direction, and is used to detect the air pressure in the temperature rise container and return the air pressure data to the controller. The controller determines that the air pressure in the temperature rise container exceeds the preset air pressure data and controls the exhaust valve to automatically exhaust air; The first temperature sensor is arranged at the air inlet side of the heat exchanger to measure the temperature of the incoming cold air; the second temperature sensor is arranged at the air outlet side of the fan to measure the temperature of the outgoing warm air; The end of the water level and water temperature sensor extends from the top of the temperature rise container in the vertical direction, and is used to measure the water level and water temperature data in the temperature rise container, and return the measured water level and water temperature data to the controller; The interactive input unit is used to send the adjustment instruction set by the user to the controller; The controller feeds back the received adjustment instruction information and the current control information of each component to the display and displays them on the display; The controller determines whether the current water level in the temperature rise container reaches the top of the inner wall of the temperature rise container, determines the current water temperature, controls the start and stop of the circulating water pump and the fan, and controls the working power of the circulating water pump and the fan. According to the temperature data of the air inlet and air outlet sides of the heat exchanger returned by the first temperature sensor and the second temperature sensor, combined with the water temperature in the temperature rise container, the water pumping speed of the circulating pump and the exhaust speed of the fan, the temperature of the warm air blown out by the fan is accurately adjusted.

7. The alternating magnetic field eddy current water heating hot air blower according to claim 6, characterized in that: After the controller receives the scale cleaning instruction from the interactive input unit, it controls the high-frequency power supply to make the electromagnetic coil heat the water in the temperature rise container to 70-80°C, starts the circulation pump to pump out the water in the temperature rise container and circulate it for at least 3 minutes, then controls the drain valve to open, and based on the returned water level information, determines that the water level drops below 20%, opens the water inlet valve to replenish water for at least 10 minutes, then closes the drain valve, and closes the water inlet valve after the water level rises to the top of the temperature rise container to complete the scale cleaning instruction.

8. The alternating magnetic field eddy current water heating hot air blower according to claim 6, characterized in that: The interactive input unit includes any one of a touch input device and a physical key mechanism.

9. The alternating magnetic field eddy current water heating hot air blower according to claim 1, characterized in that: A pipeline connected to the circulation pump extends from the hot water outlet into the temperature rise container.

10. The alternating magnetic field eddy current water heating hot air blower according to claim 1, characterized in that: The temperature rise container is a container containing iron materials.

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