Spiral electromagnetic heater

Abstract

The utility model discloses a spiral electromagnetic heater, which relates to the technical field of electromagnetic heaters and particularly comprises a shell, an outer insulating layer fixedly connected to the inner side of the shell, an outer electromagnetic coil arranged on the inner side of the outer insulating layer, a heating shell arranged on the inner side of the outer insulating layer, and an inner insulating layer fixedly connected to the inner side of the heating shell. A temperature sensor is fixedly connected to the inner side of the inner insulating layer, an inner electromagnetic coil is arranged on the inner side of the heating shell, and a top plate is arranged on the top of the shell. The electromagnetic heater can heat the inner side and the outer side of the heating shell at the same time, so that the heating shell is uniformly heated, the heating temperatures of the outer electromagnetic coil and the inner electromagnetic coil are different according to requirements during heating, and the problems that part of electromagnetic heaters are not reasonable enough in structural design, and the heating efficiency is low are solved. Due to the arrangement mode of the heating coils, magnetic field distribution is not ideal enough, heating of a heated object is unbalanced, and the heating effect and the overall energy utilization efficiency are affected.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic heater technology, specifically a spiral electromagnetic heater. Background Technology

[0002] Heating operations are common in many scenarios, including industrial production and daily life. Traditional heating methods, such as resistance wire heating, suffer from problems such as relatively low heating efficiency, large heat loss, and uneven heating.

[0003] While electromagnetic heating technology has certain advantages, some electromagnetic heaters on the market are not designed reasonably. For example, the layout of the heating coils makes the magnetic field distribution less than ideal, resulting in uneven heating of the heated object, which affects the heating effect and overall energy utilization efficiency.

[0004] A spiral electromagnetic heater disclosed in Chinese Utility Model Patent Application Publication CN202122352061.2 includes an outer electromagnetic coil, an inner electromagnetic coil, an outer heating cylinder, an inner heating cylinder, an inner core, inner and outer insulation layers, and an end cap. While this spiral electromagnetic heater improves heat transfer efficiency and rapidly increases fluid temperature while significantly reducing the overall size of the electromagnetic heater, it suffers from a drawback: the connections between its multiple components are relatively fixed, making it difficult to disassemble and replace a faulty component, thus hindering maintenance costs and extending equipment lifespan. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a spiral electromagnetic heater, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes an outer shell, an outer insulating layer fixedly connected to the inner side of the outer shell, an outer electromagnetic coil disposed on the inner side of the outer insulating layer, a heating shell disposed on the inner side of the outer insulating layer, an inner insulating layer fixedly connected to the inner side of the heating shell, a temperature sensor fixedly connected to the inner side of the inner insulating layer, an inner electromagnetic coil disposed on the inner side of the heating shell, a top plate disposed on the top of the outer shell, a heat insulation plate fixedly connected to the bottom of the top plate, two energized blocks fixedly connected inside the top plate, through holes adapted to the two energized blocks being opened inside the heat insulation plate, and four limiting brackets fixedly connected to the outer side of the top plate.

[0009] Optionally, the external electromagnetic coil is helical and is located between the heating shell and the outer insulating layer.

[0010] Optionally, the inner electromagnetic coil is helical and is located between the heating shell and the inner insulating layer.

[0011] Optionally, the outer insulation layer and the inner insulation layer are made of ceramic fiber.

[0012] Optionally, an inlet pipe is fixedly connected to the upper end of the outer side of the outer shell, and an outlet pipe is fixedly connected to the lower end of the outer side of the outer shell. Both the inlet pipe and the outlet pipe are connected to the heating shell.

[0013] Optionally, a sealing seat is fixedly connected to the bottom of the housing, and the sealing seat is fixedly connected to the outer insulating layer, the heating housing, the inner insulating layer, and the temperature sensor.

[0014] Optionally, both of the energized blocks have through holes inside, and a connecting rod is movably connected between the through holes inside the two energized blocks. The outer side of each energized block has a threaded hole and is threaded with a bolt.

[0015] Optionally, all four limiting frames are distributed on the outer side of the top plate. The limiting frames have threaded holes inside and are threaded with limiting bolts. The top of the outer shell has a groove that matches the limiting frames.

[0016] (III) Beneficial Effects

[0017] This utility model provides a spiral electromagnetic heater, which has the following beneficial effects:

[0018] 1. This spiral electromagnetic heater, through the arrangement of an outer insulation layer, an outer electromagnetic coil, an inner insulation layer, an inner electromagnetic coil, a temperature sensor, a energizing block, and a connecting rod, enables the device to simultaneously heat both the inner and outer sides of the heating shell during use, ensuring uniform heating of the heating shell. Furthermore, the heating temperature of the outer and inner electromagnetic coils can be adjusted according to requirements, thus solving the problem of some electromagnetic heaters having unreasonable structural designs and less than ideal magnetic field distribution due to the layout of the heating coils, resulting in uneven heating of the heated object and affecting the heating effect and overall energy utilization efficiency.

[0019] 2. This spiral electromagnetic heater, through the arrangement of a top plate, insulation plate, limiting frame, connecting rod, and sealing seat, allows the top plate to be disassembled and the outer and inner electromagnetic coils pulled out for replacement simply by rotating the limiting bolts during use. This solves the problem of spiral electromagnetic heaters where the connections between multiple structures are relatively fixed, making it difficult to disassemble and replace a faulty structure. This reduces maintenance costs and extends the service life of the equipment. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of this utility model from an axial view.

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of this utility model in top-down cross-section;

[0023] Figure 4 This is a schematic diagram of the structure of the present invention in a side-axis sectional view;

[0024] Figure 5 This is a schematic diagram of the structure of this utility model from an upward axis view;

[0025] Figure 6 This is a schematic diagram of the top plate of this utility model from an axial view.

[0026] In the diagram: 1. Outer shell; 2. Outer insulation layer; 3. Outer electromagnetic coil; 4. Heating shell; 5. Inner electromagnetic coil; 6. Inner insulation layer; 7. Temperature sensor; 8. Inlet pipe; 9. Outlet pipe; 10. Sealing seat; 11. Top plate; 12. Insulation board; 13. Power block; 14. Limiting frame; 15. Limiting bolt; 16. Connecting rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example 1

[0028] Please see Figures 1 to 6This utility model provides a technical solution: a spiral electromagnetic heater, including a shell 1, an outer insulating layer 2 fixedly connected to the inner side of the shell 1, an outer electromagnetic coil 3 disposed on the inner side of the outer insulating layer 2, a heating shell 4 disposed on the inner side of the outer insulating layer 2, an inner insulating layer 6 fixedly connected to the inner side of the heating shell 4, and a temperature sensor 7 fixedly connected to the inner side of the inner insulating layer 6. The outer electromagnetic coil 3 is spiral-shaped and located between the heating shell 4 and the outer insulating layer 2. The inner electromagnetic coil 5 is spiral-shaped and located between the heating shell 4 and the inner insulating layer 6. The outer insulating layer 2 and the inner insulating layer 6 are made of ceramic fiber. An inlet pipe 8 is fixedly connected to the upper end of the outer side of the shell 1, and an outlet pipe 9 is fixedly connected to the lower end of the outer side of the shell 1. Both the inlet pipe 8 and the outlet pipe 9 are connected to the heating shell 4. An inner electromagnetic coil 5 is disposed on the inner side of the heating shell 4. A top plate 11 is provided on the top of the shell 1. The bottom is fixedly connected to an insulation plate 12, and the outer side of the top plate 11 is fixedly connected to four limiting brackets 14. The interior of each of the two energized blocks 13 has through holes, and a connecting rod 16 is movably connected between the through holes of the two energized blocks 13. The outer side of the energized blocks 13 has threaded holes and is threaded with bolts. Through the arrangement of the outer insulation layer 2, the outer electromagnetic coil 3, the inner insulation layer 6, the inner electromagnetic coil 5, the temperature sensor 7, the energized blocks 13 and the connecting rod 16, the device can simultaneously heat the inner and outer sides of the heating shell 4 during use, so that the heating shell 4 is heated evenly. Moreover, the heating temperature of the outer electromagnetic coil 3 and the inner electromagnetic coil 5 can be made different according to the needs during heating. This solves the problem that some electromagnetic heaters are not reasonably designed in terms of structure, and the layout of the heating coils makes the magnetic field distribution less than ideal, resulting in uneven heating of the heated object, affecting the heating effect and overall energy utilization efficiency.

[0029] In use, the inlet pipe 8 is connected to the external water source that needs to be heated. The water source enters the interior of the heating shell 4 through the inlet pipe 8 and flows out from the outlet pipe 9. At this time, the heating temperature of the external electromagnetic coil 3 and the internal electromagnetic coil 5 is adjusted according to the needs. When the temperature of the two electromagnetic coils is the same, the two energizing blocks 13 are in contact with the internal electromagnetic coil 5 and the external electromagnetic coil 3 respectively. The connecting rod 16 is used to connect the two energizing blocks 13, and then the connecting rod 16 is fixed by rotating the bolt. Then, the two electromagnetic coils can be heated simultaneously. When the temperature of the two electromagnetic coils is different, the connecting rod 16 needs to be disassembled, and then the two energizing blocks 13 are energized respectively. Then, the external electromagnetic coil 3 and the internal electromagnetic coil 5 heat the inside and outside of the heating shell 4, so that the heating shell 4 is heated evenly, thereby quickly heating the water source inside the heating shell 4. This solves the problem that some electromagnetic heaters are not reasonably designed in terms of structure, and the layout of the heating coils makes the magnetic field distribution not ideal, resulting in uneven heating of the heated object, affecting the heating effect and overall energy utilization efficiency. Example 2

[0030] Please see Figures 1 to 6 This utility model provides a technical solution: a spiral electromagnetic heater, in which two energizing blocks 13 are fixedly connected inside the top plate 11, and through holes adapted to the two energizing blocks 13 are opened inside the insulation plate 12. A sealing seat 10 is fixedly connected to the bottom of the outer shell 1. The sealing seat 10 is fixedly connected to the outer insulation layer 2, the heating shell 4, the inner insulation layer 6, and the temperature sensor 7. Four limiting brackets 14 are distributed on the outside of the top plate 11. The limiting brackets 14 have threaded holes inside and are threaded with limiting bolts 15. The top of the outer shell 1 has grooves adapted to the limiting brackets 14. Through the arrangement of the top plate 11, the insulation plate 12, the limiting brackets 14, the connecting rod 16, and the sealing seat 10, the top plate 11 can be disassembled by simply rotating the limiting bolts 15 during use, and the outer electromagnetic coil 3 and the inner electromagnetic coil 5 can be pulled out for replacement. This solves the problem that in spiral electromagnetic heaters, the connections between multiple structures are relatively fixed, and it is not easy to disassemble and replace a certain structure after a problem occurs, thereby reducing maintenance costs and extending the service life of the equipment.

[0031] During use, the limiting bolt 15 is removed, and then the top plate 11 is lifted to separate it from the outer casing 1. After separation, the inner electromagnetic coil 5 can be pulled out. When the outer electromagnetic coil 3 needs to be pulled out, since the inlet pipe 8 and outlet pipe 9 are located between the outer electromagnetic coil 3, the outer electromagnetic coil 3 needs to be rotated simultaneously when pulling it out to complete the replacement of the outer electromagnetic coil 3. This solves the problem of the spiral electromagnetic heater, where the connections between multiple structures are relatively fixed, and it is not easy to disassemble and replace a certain structure after a problem occurs. This reduces maintenance costs and extends the service life of the equipment.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solenoid electromagnetic heater comprising a housing (1), characterised in that: An outer insulating layer (2) is fixedly connected to the inner side of the outer shell (1). An outer electromagnetic coil (3) is provided on the inner side of the outer insulating layer (2). A heating shell (4) is provided on the inner side of the outer insulating layer (2). An inner insulating layer (6) is fixedly connected to the inner side of the heating shell (4). A temperature sensor (7) is fixedly connected to the inner side of the inner insulating layer (6). An inner electromagnetic coil (5) is provided on the inner side of the heating shell (4). A top plate (11) is provided on the top of the outer shell (1). A heat insulation plate (12) is fixedly connected to the bottom of the top plate (11). Two energizing blocks (13) are fixedly connected inside the top plate (11). Through holes adapted to the two energizing blocks (13) are opened inside the heat insulation plate (12). Four limiting brackets (14) are fixedly connected to the outer side of the top plate (11).

2. A solenoid electromagnetic heater according to claim 1, wherein: The external electromagnetic coil (3) is spiral-shaped and is located between the heating shell (4) and the outer insulation layer (2).

3. A spiral electromagnetic heater according to claim 1, characterized in that: The inner electromagnetic coil (5) is spiral-shaped and is located between the heating shell (4) and the inner insulating layer (6).

4. A solenoidal electromagnetic heater according to claim 1, characterized in that: The outer insulation layer (2) and the inner insulation layer (6) are made of ceramic fiber.

5. A solenoidal electromagnetic heater according to claim 1, characterized in that: An inlet pipe (8) is fixedly connected to the upper end of the outer side of the outer shell (1), and an outlet pipe (9) is fixedly connected to the lower end of the outer side of the outer shell (1). Both the inlet pipe (8) and the outlet pipe (9) are connected to the heating shell (4).

6. A solenoidal electromagnetic heater according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected to a sealing seat (10), and the sealing seat (10) is fixedly connected to an outer insulating layer (2), a heating shell (4), an inner insulating layer (6), and a temperature sensor (7).

7. A solenoidal electromagnetic heater according to claim 1, characterized in that: Both of the two energized blocks (13) have through holes inside, and a connecting rod (16) is movably connected between the through holes inside the two energized blocks (13). The outer side of the energized blocks (13) has threaded holes and is threaded with bolts.

8. A solenoidal electromagnetic heater according to claim 1, characterized in that: The four limiting frames (14) are distributed on the outside of the top plate (11). The limiting frame (14) has a threaded hole inside and a limiting bolt (15) is threadedly connected. The top of the outer shell (1) has a groove that matches the limiting frame (14).

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