Electromagnetic heating heat conversion device

Abstract

This invention provides an electromagnetic heating heat conversion device, relating to heating equipment and heating of liquid media. It includes a metal heat exchanger and a magnetic field generating mechanism, the magnetic field generating mechanism being detachable and located outside the metal heat exchanger. The metal heat exchanger is made of 430 stainless steel (1Cr17Mn6Ni5N). The metal heat exchanger has a three-layer integrated hollow structure, forming a heat exchange cavity inside. A water inlet is located at the top of the metal heat exchanger, and a water outlet is located at the bottom, both communicating with the heat exchange cavity. The magnetic field generating mechanism includes a non-metallic quartz tube and a high-frequency coil wound around the outer wall of the non-metallic quartz tube. The non-metallic quartz tube passes through the outside of the metal heat exchanger and is pressed together by a cover and base of the electromagnetic heating heat conversion device with a silicone sealant. This allows the entire metal heat exchanger to be immersed in water inside the non-metallic quartz tube, and the high-frequency coil is electrically connected to an external electrical control device. The inlet and outlet of the metal heat exchanger are respectively connected to the inlet and outlet of the upper cover and base of the electromagnetic heating heat conversion device with sealing fittings. The upper cover and base are detachable and are located on the upper and lower parts of the metal heat exchanger, respectively. This application utilizes a magnetic field to cut magnetic lines of force, acting on the metal heat exchanger to rapidly generate heat, thereby rapidly raising the water temperature and improving the heat conversion efficiency.

Description

Technical Field

[0001] This invention relates to heating equipment and other heating applications using liquid media. Specifically, it relates to an electromagnetic heating heat conversion device. Background Technology

[0002] The core of electromagnetic heating is the use of electromagnetic principles; it utilizes magnetic lines of force to cut metal, generating eddy currents, and the resulting heat energy is used as a heat source. Through a heat dissipation system, it achieves the purpose of heat conversion.

[0003] Other electromagnetic heating devices currently on the market heat water or other liquids by placing a metal tube at the center of a magnetic field. They generate heat by having external magnetic lines of force cut through the metal, which then heats the water flowing through the device, thus raising its temperature. However, due to the simple water path, short water-metal passage time, and limited contact area between the water and metal, the heat conversion efficiency in these devices is generally only 85% to 90%. Summary of the Invention

[0004] The purpose of this invention is to provide an electromagnetic heating heat conversion device. It fully utilizes the magnetic field cutting magnetic lines of force onto the metal heat exchanger, continuously performing heat conversion and fully absorbing the heat generated by the magnetic lines of force acting on the metal heat exchanger. By repeatedly passing through the metal contact surfaces of various parts of different water channels, it improves the heat conversion capacity and efficiency, shortens the overall system heating time, and further saves energy.

[0005] To solve the above-mentioned technical problems and overcome existing technical limitations, the present invention adopts the following technical solution: an electromagnetic heating heat conversion device. It comprises a metal heat exchange component and a magnetic field generating mechanism. The magnetic field generating mechanism is detachable and located outside the metal heat exchange component.

[0006] The metal heat exchanger is a three-layer hollow structure. The interior of the three-layer hollow structure forms a heat exchange cavity; the sidewalls form heat exchange contact surfaces.

[0007] The metal heat exchanger is a three-layer hollow structure. The interior of the three-layer hollow structure forms a heat exchange cavity; the sidewalls form heat exchange contact surfaces.

[0008] The magnetic field generating mechanism includes a non-metallic quartz tube and a high-frequency coil wound around the outside of the non-metallic quartz tube. The non-metallic quartz tube passes through the periphery of the metal heat exchanger, and the high-frequency coil is electrically connected to an external electronic control device.

[0009] Furthermore, in this invention, the space between the second inner wall and the first tube in the heat exchange cavity is a closed cavity filled with air, and the pressure increases as the temperature rises.

[0010] Furthermore, in this invention, the metal heat exchanger is provided with multiple layers of partitions from top to bottom, and channels are provided between adjacent partitions. The multiple channels from top to bottom are spirally arranged downward to form an irregular water flow path.

[0011] Furthermore, in this invention, the top and bottom of the metal heat exchanger are respectively provided with a metal heat exchanger inlet and a metal heat exchanger outlet. The inlet and outlet are respectively connected to the inlet of the upper cover of the electromagnetic heating heat conversion device and the outlet of the drain module, and are detachably connected to the magnetic field generating mechanism.

[0012] Furthermore, the bottom drainage module described in this invention is detachably connected to the base. The drainage module is equipped with a shut-off valve. Because the heat exchange chamber consists of three layers and two chambers, water outside the metal heat exchange components can be drained by opening the shut-off valve, and it is closed during operation.

[0013] Furthermore, the bottom drainage module described in this invention is detachably connected to the base. The drainage module is equipped with a shut-off valve. Because the heat exchange chamber consists of three layers and two chambers, water outside the metal heat exchange components can be drained by opening the shut-off valve, and it is closed during operation.

[0014] Further, the electromagnetic heating heat conversion device is characterized in that a water flow control switch is provided between the water inlet of the electromagnetic heating heat conversion device and the circulating pump. The water flow control switch is electrically connected to the electrical control device.

[0015] Further, the electromagnetic heating heat conversion device is characterized in that the circulating pump is connected to a water supply pump and a drain valve. The drain valve is connected to a water supply tank.

[0016] The electromagnetic heating heat conversion device is further described. Its electronic control device includes a heating control board, a temperature control board, a pressure switch, and a display panel. The electromagnetic heating control board is electrically connected to the high-frequency coil. The display panel and the electromagnetic heating control board are respectively electrically connected to the control board.

[0017] Furthermore, the electromagnetic heating heat conversion device described in this invention includes a temperature limiting switch on its drain module. The temperature limiting switch is electrically connected to the electronic control device.

[0018] Furthermore, in this invention, a control module is provided after the circulating pump. The module is equipped with a check valve, a pressure relief and drain valve, a pressure regulating switch, a pressure gauge, and a temperature sensor. The temperature sensor is electrically connected to the electronic control device.

[0019] Furthermore, in this invention, the electronic control device includes an electromagnetic heating control board, a temperature control board, and a display panel. The electromagnetic heating control board is electrically connected to a high-frequency coil. The display panel and the electromagnetic heating control board are respectively electrically connected to the temperature control board.

[0020] This invention has at least the following advantages or beneficial effects: By incorporating a detachably connected metal heat exchanger and a magnetic field generating mechanism, with the magnetic field generating mechanism enclosing the metal heat exchanger, the magnetic field lines generated by the high-frequency coil act on the metal heat exchanger, rapidly heating the water flowing continuously inside and around it. This heats the water and simultaneously cools the high-frequency coil through conduction via a non-metallic quartz tube. This prevents the heat from the coil exposed to the outside from dissipating into the air, thus avoiding a dangerous continuous rise in the temperature of the device and its surroundings, and also maximizes the use of all the increased temperature for heating the water. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that, for those skilled in the art, other related drawings cannot be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a structural diagram of the electromagnetic heating heat conversion device provided in the embodiments of this application.

[0023] Figure 2 This is a schematic diagram of the structure of the metal heat exchanger provided in the embodiments of this application.

[0024] Figure 3 This is an assembly diagram of the metal heat exchanger provided in the embodiments of this application.

[0025] Figure 4 This is a cross-sectional view of a metal heat exchanger provided in an embodiment of this application.

[0026] Icons: 100 Electromagnetic heating heat exchanger, 110 Top cover of electromagnetic heating heat exchanger, 120 Base of electromagnetic heating heat exchanger, 130 Drain module of electromagnetic heating heat exchanger, 140 Drain shut-off valve of electromagnetic heating heat exchanger, 150 Automatic air vent valve of electromagnetic heating heat exchanger, 160 Inlet of electromagnetic heating heat exchanger, 170 Outlet of electromagnetic heating heat exchanger, 180 Water flow direction of electromagnetic heating heat exchanger, 190 Water plug, 200 Metal heat exchanger, 210 Inlet of metal heat exchanger, 220 Second inlet of metal heat exchanger, 221 Second sleeve of metal or heat exchanger, 222 Space between the inner wall of the second layer of metal heat exchanger and the first layer of tube, 223 Third sleeve of metal heat exchanger, 230 Outlet of the first layer of tube inside metal heat exchanger, 240 Water channel on the outer wall of metal heat exchanger, 250 Heat exchange chamber of metal heat exchanger, 260 Metal heat exchanger partition, 270 metal heat exchanger outlet, 280 metal heat exchanger spiral downflow channel, 300 magnetic field generating structure, 310 non-metallic quartz tube, 320 high-frequency coil. Detailed Implementation

[0027] To achieve the objectives of the embodiments of the present invention, the technical solutions and advantages will become clearer. The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Furthermore, experimental data will be used to demonstrate the breakthroughs of the embodiments of the present invention in this field.

[0028] Obviously, the described embodiments are some of the embodiments of the present invention, and the components of the embodiments of the present invention described and shown in the accompanying drawings can be in various different configurations, arrangements and designs.

[0029] Therefore, the following detailed description of embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. Embodiments in the basic method, and other embodiments obtained without inventive effort, are all within the scope of protection of this invention. Example

[0030] Please refer to Figure 1 —— Figure 4 The image shows an electromagnetic heating heat conversion device in an embodiment of the present invention. This embodiment provides an electromagnetic heating heat conversion device 100, an electromagnetic heating metal heat exchanger 200, and a magnetic field generating mechanism 300 that is detachable and located outside the metal heat exchanger 100.

[0031] The metal heat exchanger is a three-layered, hollow structure. The inner and outer layers of this hollow structure form a heat exchange cavity 250. A metal heat exchanger inlet 210 is located at the top of the metal heat exchanger 200 and connected to it. A metal heat exchanger outlet 270 is located at the bottom of the metal heat exchanger 200 and connected to it. Both are connected to the heat exchange cavity 250.

[0032] The magnetic field generating mechanism 300 includes a non-metallic quartz tube 310 and a high-frequency coil 320 wound around the outer wall of the non-metallic quartz tube 310. The non-metallic quartz tube 310 passes through the outside of the metallic heat exchanger 200. The high-frequency coil 320 is wound around the outer wall of the non-metallic quartz tube 310. The high-frequency coil 320 is electrically connected to an external electrical control device.

[0033] The electromagnetic heating heat conversion device 100 in this example embodiment will be described in further detail below.

[0034] In this embodiment, the aforementioned metal heat exchanger 200 is a three-layer integrated hollow structure. Water flows from top to bottom through the inlet 210 of the metal heat exchanger, through the central tube to the outlet 230 of the first layer of the metal heat exchanger, and then flows upwards through the water channel 250 on the outer wall of the metal heat exchanger. The outer side is the inner wall of a non-metallic quartz tube 310. (Quartz material has high temperature resistance and high conductivity, and is unaffected by magnetic fields.) A high-frequency coil 320 is wound around the outer wall of the non-metallic quartz tube 310. The heat generated by the high-frequency coil 320 can reach 80-90 degrees Celsius. This heat is conducted to the water through the non-metallic quartz tube 310, and the high temperature is carried away by the water to cool the high-frequency coil. Otherwise, if the high-frequency coil is exposed to the outside and the heat dissipates into the air, the temperature of the device and the surrounding area will continue to rise, causing a hazard.

[0035] In this embodiment, water simultaneously passes through the inner third layer sleeve 223 of the metal heat exchanger, converts heat, continuously heats up, and then rises to the top of the heat exchange chamber 250; it flows into the second heat exchange chamber 250 from the second layer water inlet 220 of the metal heat exchanger, thereby entering the interior of the metal heat exchanger.

[0036] In this embodiment, the second water jacket 221 of the metal heat exchanger is provided with multiple layers of baffles 260 from top to bottom, with channels between adjacent baffles 260. The heat exchange cavity 250 is formed by the outer wall of the second jacket 221 and the inner wall of the third jacket 223, spiraling downwards to form a non-linear water flow path. Note: The cross-section of this path is rectangular, and its cross-sectional area is the same as that of the central tube; that is, the cross-sectional areas of the metal heat exchanger inlet 210, outlet 230, electromagnetic heating heat conversion device inlet 160, and outlet 170 are identical. As the distance between the baffles changes, the diameters of 210, 230, 160, and 170 also change, resulting in different flow rates to meet different power requirements.

[0037] In this embodiment, a closed cavity is provided between the inner wall of the second sleeve and the outer wall of the first tube, which is filled with air. When the air is heated, the temperature rises and the pressure also rises. This can resist the pressure of the heat exchange chamber 250 and avoid the increase in internal and external pressure difference caused by the rise in water temperature, thereby causing the metal heat exchanger 200 to deform.

[0038] In this embodiment, the water flow forms a spiral downward waterway 280 through the partition 260 between the second sleeve and the first pipe layer 222, and flows out through the outlet 270 of the metal heat exchanger. The outlet 270 of the metal heat exchanger passes through the base 120 and the drain module 130, and flows out from the outlet 170 of the electromagnetic heating heat conversion device. All the above components are fastened together by bolts. The electromagnetic heating heat conversion device is connected to the circulating pump.

[0039] In this embodiment, the top cover 110 of the electromagnetic heating heat exchange device is equipped with two automatic exhaust valves 150 (1) and (2). Automatic exhaust valve 150 (2) is used to exhaust water entering through the water inlet 160 of the electromagnetic heating heat exchange device. Automatic exhaust valve 150 (1) is used to exhaust water in the heat exchange chamber.

[0040] In this embodiment, the drain valve 140 on the drain module 130 of the electromagnetic heating heat conversion device 100 is used to drain the water in the water channel 240 on the outer wall of the metal heat exchanger when needed. During operation, the drain valve 140 needs to be closed.

[0041] As a preferred implementation, a flow switch is provided between the water inlet 160 of the electromagnetic heating heat conversion device and the circulating pump. The flow switch is electrically connected to the electrical control device and can monitor whether the water circulation is working properly.

[0042] As a preferred implementation scheme, the aforementioned electrical control device includes an electromagnetic heating control board, a control board, a display panel, and is electrically connected to a high-frequency coil 320. The electrical control device receives various detection information and controls the return water temperature, system pressure, outlet water temperature, over-temperature limit, flow rate, flow volume, and the temperature difference between the outlet and return water in real time. These protective measures ensure that the water supply error is within the required range and protect the normal operation of the device from a safety perspective. It adopts a human-machine interface for operation and allows for adjustment of various control parameters according to operational needs to meet system requirements.

[0043] As a preferred implementation method, the electromagnetic heating heat conversion device obtains actual working data through the operation of the overall heating cycle system. The specific details are as follows: 1. Total water volume in the system: 380 liters; 2. Heating current: 29.6A; 3. Heating power: 19.5KW; 4. Temperature measurement range: 32℃-42℃. Heating up 0 degrees, return water temperature 32℃, time taken 0 seconds (equivalent to 0 seconds), time to increase 1 degree in 0 seconds. Heating up 1 degree, return water temperature 33℃, time taken 1 minute (equivalent to 60 seconds), time to increase 1 degree in 60 seconds. Heating up 2 degrees, return water temperature 34℃, time taken 2 minutes 30 seconds (equivalent to 150 seconds), time to increase 1 degree in 90 seconds. Heating up 3 degrees, return water temperature 35℃, time taken 3 minutes 55 seconds (equivalent to 235 seconds), time to increase 1 degree in 85 seconds. Temperature rises by 4 degrees Celsius, return water temperature reaches 36 degrees Celsius, time taken 5 minutes and 6 seconds (equivalent to 306 seconds), time taken to rise 1 degree Celsius is 71 seconds. Temperature rises by 5 degrees Celsius, return water temperature reaches 37 degrees Celsius, time taken 6 minutes and 15 seconds (equivalent to 375 seconds), time taken to rise 1 degree Celsius is 69 seconds. Temperature rises by 6 degrees Celsius, return water temperature reaches 38 degrees Celsius, time taken 7 minutes and 25 seconds (equivalent to 445 seconds), time taken to rise 1 degree Celsius is 70 seconds. Temperature rises by 7 degrees Celsius, return water temperature reaches 39 degrees Celsius, time taken 8 minutes and 55 seconds (equivalent to 535 seconds), time taken to rise 1 degree Celsius is 90 seconds. Temperature rises by 8 degrees Celsius, return water temperature reaches 40 degrees Celsius, time taken 10 minutes and 5 seconds (equivalent to 605 seconds), time taken to rise 1 degree Celsius is 70 seconds. Temperature rises by 9 degrees Celsius, return water temperature reaches 41 degrees Celsius, time taken 11 minutes and 25 seconds (equivalent to 685 seconds), time taken to rise 1 degree Celsius is 80 seconds. The water temperature rose by 10 degrees Celsius, and the return water temperature reached 42 degrees Celsius. The time taken was 12 minutes and 50 seconds, which is equivalent to 770 seconds. The time taken to rise by 1 degree Celsius was 85 seconds. The time taken to rise by 10 degrees Celsius was 770 seconds (actual measured value).

[0044] Based on: Specific heat capacity × Volume × Heating temperature / Power = Theoretical time. 4.2 × 380 liters × 10℃ / 19.5 kW = 818.46 seconds (theoretical value). The measured value is 48 seconds shorter than the theoretical value, accounting for 5.9%.

[0045] In this embodiment, the structure of the electromagnetic heating heat conversion device shortens the heating time and improves the heat conversion efficiency.

[0046] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the invention.

Claims

1. An electromagnetic heating heat conversion device. Its characteristics are: Metal heat exchange components and magnetic field generating mechanisms.

2. According to claim 1, the metal heat exchanger is a three-layer integrated hollow structure, with a heat exchange cavity formed inside the three-layer integrated hollow structure. A water inlet is provided at the top of the metal heat exchanger, and a water outlet is provided at the bottom of the metal heat exchanger. The water inlet and the water outlet are respectively connected to the heat exchange cavity and respectively connected to the water inlet of the electromagnetic heating heat conversion device on the upper cover and the water outlet of the electromagnetic heating heat conversion device on the base. The magnetic field generating mechanism includes a non-metallic quartz tube and a high-frequency coil wound around the outer wall of the non-metallic quartz tube. The non-metallic quartz tube passes through the outside of the metal heat exchanger. The high-frequency coil is located outside the metal heat exchanger and the non-metallic quartz tube, and the high-frequency coil is electrically connected to an external electronic control device.

3. The electromagnetic heating heat conversion device according to claim 2, characterized in that, The heat exchange chamber is provided with multiple partitions from top to bottom; a connecting channel is established between two adjacent partitions; the multiple connecting channels from top to bottom form multiple irregular water flow paths.

4. As described in claim 2, the space between the second inner wall and the first tube in the heat exchange chamber is a closed cavity containing air. When the air is heated, its temperature rises, and its pressure rises accordingly.

5. The electromagnetic heating heat conversion device according to claim 2. Its characteristic is that... The metal heat exchanger is equipped with a top cover and a base at the top and bottom, respectively. It is sealed and detachably connected.

6. The electromagnetic heating converter device according to claim 2. Its characteristic is that... The outlet is connected to an external circulation pump. The circulation pump is connected to a makeup water pump and a makeup water tank, which stores water at normal temperature and pressure.

7. The electromagnetic heating conversion device according to claim 2. Its features are, A flow switch is provided between the water inlet and the circulation pump. The flow switch is electrically connected to the electrical control device.

8. The electromagnetic heating conversion device according to claim 2. Its characteristics are... The circulating pump is connected to the water supply pump and then to the drain valve. The drain valve is connected to the water supply tank.

9. The electromagnetic heating heat conversion device according to claim 1. Its characteristics are... The electronic control device includes a heating control board, a temperature control board, a pressure switch, and a display panel. The electromagnetic heating control board is electrically connected to the high-frequency coil; the display panel and the electromagnetic heating control board are respectively connected to the control board.

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