Electromagnetic air heater
By designing an electromagnetic heater, using the electromagnetic coil to generate an alternating magnetic field to heat the iron inner core, the shortcomings of existing resistance heating technology in drying equipment are solved, and the efficient and energy-saving heating effect is achieved, and the thermal efficiency utilization and environmental protection are improved.
Patent Information
- Application Number
- CN202420049432.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-01-09
AI Technical Summary
The existing resistance heating technology has the disadvantages of slow start, low temperature and high power consumption in drying equipment, and is difficult to be suitable for large equipment.
An electromagnetic heater is designed, including an electromagnetic heating air cylinder, a current collector and an electromagnetic coil. The electromagnetic coil generates an alternating magnetic field to heat the iron inner core, and then heat the air.
It realizes the efficient and energy-saving heating effect, directly heating the airflow reduces the intermediate heat transfer process, improves thermal efficiency utilization, reduces production costs, and is conducive to environmental protection.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic induction heating equipment, in particular to an electromagnetic hot air blower. Background Art
[0002] Steam and resistance heating technology are often used in drying equipment, and equipment equipped with steam or resistance heating is used. Due to the working environment requirements, the above steam equipment needs to provide high-temperature heat energy to the heat-using equipment at low pressure (normal pressure or lower pressure). The above resistance equipment has the disadvantages of slow start-up, low temperature, and high power consumption, and is not easy to be used on large equipment.
[0003] In order to solve the above-mentioned technical deficiencies of the prior art, it is necessary to design an electromagnetic hot air blower with a reasonable layout and high heating efficiency. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes an electromagnetic hot air blower.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] An electromagnetic hot air blower comprises an electromagnetic heating air cylinder, a collecting cover and an electromagnetic coil, wherein the electromagnetic heating air cylinder comprises an outer cylinder and an iron inner core arranged in the outer cylinder, a plurality of fins are arranged between the outer cylinder and the iron inner core, and the plurality of fins divide the space between the outer cylinder and the iron inner core into a plurality of air flow channels for heating air and allowing air to circulate, the collecting cover is connected to one end of the electromagnetic heating air cylinder through a flange, the collecting cover is provided with an air inlet, and the other end of the electromagnetic heating air cylinder is set as an air outlet, and the electromagnetic coil is wound around the outer wall of the outer cylinder.
[0007] Furthermore, the outer wall of the electromagnetic coil is provided with a plurality of iron sheets.
[0008] Furthermore, a plurality of the iron sheets are connected to the electromagnetic coil by winding with insulating tape.
[0009] Furthermore, a temperature sensor is provided in the electromagnetic heating air cylinder.
[0010] Furthermore, bases are provided at both ends of the electromagnetic heating air cylinder.
[0011] Furthermore, the iron inner core is located at the air outlet, and the iron inner core is recessed inwards.
[0012] Beneficial effects: Compared with the prior art, the utility model uses an electromagnetic hot air blower instead of a resistance heater, which has high thermal efficiency, is more energy-saving, has a short heating time, and has high energy conversion efficiency. The electromagnetic hot air blower directly heats the airflow, reduces the intermediate heat transfer process, and improves thermal efficiency. It truly achieves efficient energy-saving electricity use, reduces production costs, and is also beneficial to environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of the electromagnetic hot air blower involved in the utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of the electromagnetic heating tube;
[0015] In the figure: 10, electromagnetic heating air cylinder; 11, outer cylinder; 12, iron inner core; 13, fins; 14, air outlet; 20, collecting cover; 21, air inlet; 3, electromagnetic coil; 4, iron sheet; 5, base. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] Reference Figure 1-2 The utility model provides an electromagnetic hot air blower, comprising an electromagnetic heating air cylinder 10, a collecting cover 20 and an electromagnetic coil 3, wherein the electromagnetic heating air cylinder 10 comprises an outer cylinder 11 and an iron inner core 12 arranged in the outer cylinder 11, a plurality of fins 13 are arranged between the outer cylinder 11 and the iron inner core 12, and the plurality of fins 13 divide the space between the outer cylinder 11 and the iron inner core 12 into a plurality of air flow channels for heating air and allowing air to circulate, the collecting cover 20 is connected to one end of the electromagnetic heating air cylinder 10 through a flange, the collecting cover 20 is provided with an air inlet 21, and the other end of the electromagnetic heating air cylinder 10 is set as an air outlet 14, and the electromagnetic coil 3 is wound around the outer wall of the outer cylinder 11;
[0018] In practical application, by using the electromagnetic hot air blower of the utility model instead of the resistance heater, the thermal efficiency is high, the energy saving is more, the heating time is short, the energy conversion efficiency is high, and the electromagnetic hot air blower directly heats the airflow, reduces the intermediate heat transfer process, and improves the thermal efficiency. It truly achieves efficient energy saving and reduces production costs, which is also beneficial to environmental protection.
[0019] The outer wall of the electromagnetic coil 3 is provided with a plurality of iron sheets 4, and the plurality of iron sheets 4 are wound and connected with the electromagnetic coil 3 through insulating tape. A temperature sensor is provided in the electromagnetic heating wind tube 10, and bases are provided at both ends of the electromagnetic heating wind tube 10. The iron inner core 12 is located at the air outlet 14, and the iron inner core 12 is concave inward.
[0020] In practical application, the iron bar 4 can prevent the electromagnetic coil 3 from generating magnetic interference to the outside world and avoid interfering with external electrical equipment. The temperature sensor can be connected to the controller or panel to monitor the temperature in the electromagnetic heating duct 10 in real time. The two ends of the electromagnetic heating duct 10 are covered with a square base 5. When there is air flowing inside, the square base 5 is guaranteed to become firm during use, so that the electromagnetic heating machine can run smoothly.
[0021] Working principle: The utility model is connected to an external high-frequency and high-voltage current power supply. An iron inner core 12 is placed in the electromagnetic heating wind tube 10, and an electromagnetic coil 3 is sleeved on the outside. The high-frequency and high-voltage current flows through the electromagnetic coil 3 to generate a high-speed changing alternating magnetic field in the electromagnetic heating wind tube 10. The surface of the iron inner core 12 has the function of cutting the alternating magnetic lines of force and generating alternating eddy currents in the iron inner core 12. The eddy currents make the iron atoms in the iron inner core 12 move irregularly at high speed, and the atoms collide and rub against each other to generate heat energy. Thereby achieving the effect of heating the air. The fins 13 are also made of iron, and the fins 13 are also heated in the same way, increasing the contact area between the air and the iron for better heating.
[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An electromagnetic hot air blower, characterized in that: The electromagnetic heating wind tube (10) comprises an electromagnetic heating wind tube (10), a flow collecting cover (20) and an electromagnetic coil (3), wherein the electromagnetic heating wind tube (10) comprises an outer tube (11) and an iron inner core (12) arranged in the outer tube (11), a plurality of fins (13) are arranged between the outer tube (11) and the iron inner core (12), and the plurality of fins (13) divide the space between the outer tube (11) and the iron inner core (12) into a plurality of air flow channels for air circulation, the flow collecting cover (20) is connected to one end of the electromagnetic heating wind tube (10), the flow collecting cover (20) is provided with an air inlet (21), and the other end of the electromagnetic heating wind tube (10) is provided with an air outlet (14), and the electromagnetic coil (3) is wound around the outer wall of the outer tube (11).
2. The electromagnetic hot air blower according to claim 1, characterized in that: The outer wall of the electromagnetic coil (3) is provided with a plurality of iron sheets (4).
3. The electromagnetic hot air blower according to claim 2, characterized in that: A plurality of the iron sheets (4) are wound and connected to the electromagnetic coil (3) via insulating tape.
4. The electromagnetic hot air blower according to claim 1, characterized in that: A temperature sensor is provided in the electromagnetic heating air cylinder (10).
5. The electromagnetic hot air blower according to claim 1, characterized in that: Both ends of the electromagnetic heating wind tube (10) are covered with bases (5).
6. The electromagnetic hot air blower according to claim 1, characterized in that: The iron inner core (12) is located at the air outlet (14), and the iron inner core (12) is concave inwards.