Variable-frequency double-magnetic electromagnetic heater
By using the high-frequency electromagnetic induction heating technology of the variable frequency dual-magnetic electromagnetic heater, the problems of low high-frequency conversion efficiency and low heat transfer efficiency of existing electromagnetic heaters are solved, achieving efficient and safe heating and reducing energy consumption.
Patent Information
- Application Number
- CN202422403948.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Existing electromagnetic heaters still need improvement in terms of high-frequency electromagnetic conversion efficiency, heat transfer efficiency, and safety. Traditional electric heating methods suffer from low thermal efficiency, slow heating speed, and high energy consumption.
The system employs a variable frequency dual-magnetic heater, which utilizes high-frequency electromagnetic induction heating technology by setting up heating coil components and inner tank components. It directly uses the heat generated by eddy currents in the metal conductor for heating, reducing energy loss during the energy conversion process. The heating process is monitored and controlled by a temperature sensor.
It significantly improves thermal efficiency by about 20%, achieving efficient energy utilization, reducing operating costs, and improving heating speed and safety.
Smart Images
Figure CN223528237U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of heater, concretely relates to a variable frequency double magnetic electromagnetic heater. BACKGROUND
[0002] With the continuous implementation of coal to electricity and coal to gas policy, many regions in the country are implementing coal to electricity. Traditional electric heating methods often have low thermal efficiency, slow heating speed, high energy consumption and other problems. Electromagnetic heating technology is gradually favored by the market for its high efficiency, environmental protection and energy saving. However, the existing electromagnetic heater still needs to be improved in high-frequency electromagnetic conversion efficiency, heat conduction efficiency and safety. SUMMARY
[0003] Therefore, the main purpose of the utility model is to provide a variable frequency double magnetic electromagnetic heater.
[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:
[0005] The utility model embodiment one provides a variable frequency double magnetic electromagnetic heater, including heater shell assembly, heating coil assembly, power supply assembly, explosion-proof junction box assembly, liquid supply assembly, inner container assembly, the inner container assembly sets up in the heater shell assembly, the explosion-proof junction box assembly sets up in one end of the heater shell assembly, the heating coil assembly is sleeved on the inner container assembly, one end of the power supply assembly is connected with the heating coil assembly, the other end is connected with the power supply after passing through the explosion-proof junction box assembly, one end of the liquid supply assembly is communicated with the inner container assembly, the other end of the liquid supply assembly is used for external liquid source.
[0006] In the above scheme, the heater shell assembly includes a shell and a bottom plate, and the bottom plate is installed at the bottom of the shell.
[0007] In the above scheme, the inner container assembly includes a heater inner shell, and the heater inner shell is arranged in the shell.
[0008] In the above scheme, the heating coil assembly includes a spiral high-temperature electromagnetic coil and a glass steel insulating sleeve, the spiral high-temperature electromagnetic coil is wound on the glass steel insulating sleeve, the glass steel insulating sleeve is sleeved on the heater inner shell, and a gap is arranged between the glass steel insulating sleeve and the heater inner shell.
[0009] In the above scheme, the liquid supply assembly includes a liquid supply pipe and a liquid supply port, the liquid supply port is arranged on the outer wall of the shell, one end of the liquid supply pipe is connected with the liquid supply port, and the other end of the liquid supply pipe is connected with the heater inner shell.
[0010] In the scheme, the power supply assembly comprises a conduit and a high-temperature electromagnetic access wire, the conduit is sleeved on the liquid supply pipe, and the high-temperature electromagnetic access wire is arranged in the conduit, and one end of the high-temperature electromagnetic access wire is connected with the spiral high-temperature electromagnetic coil.
[0011] In the scheme, the explosion-proof junction box assembly comprises an explosion-proof junction box shell, an explosion-proof junction box shell cover, a ceramic junction terminal fixing support, an electromagnetic coil junction terminal, an electromagnetic coil lead wire access port and an explosion-proof wire inlet, one end of the explosion-proof junction box shell is welded and connected with the shell, the explosion-proof wire inlet is arranged on one side of the explosion-proof junction box shell and used for placing an external power supply wire, the explosion-proof junction box shell cover is arranged on the other end of the explosion-proof junction box shell, the other end of the high-temperature electromagnetic access wire is connected with the electromagnetic coil junction terminal, the electromagnetic coil lead wire access port is arranged on the explosion-proof junction box shell, and the electromagnetic coil junction terminal is fixed in the explosion-proof junction box shell through the ceramic junction terminal fixing support.
[0012] In the scheme, the shell and the conduit support and the shell and the glass steel insulation sleeve are both provided with a filler, and the filler is magnesium oxide powder.
[0013] In the scheme, the explosion-proof junction box shell is further provided with an electromagnetic coil temperature sensor for monitoring the temperature of the spiral high-temperature electromagnetic coil.
[0014] Compared with the prior art, the heating coil assembly and the inner container assembly are arranged, high-frequency electromagnetic induction heating technology is adopted, heat generated by eddy current in a metal conductor is directly utilized for heating, loss of energy in a conversion process is reduced, compared with a traditional resistance heating mode, heat efficiency of the utility model is significantly improved, usually about 20% higher, efficient utilization of energy is realized, and operation cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0015] The drawings described herein are used to disclose further understanding of the utility model, constitute a part of the utility model, and the illustrative embodiment and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:
[0016] Figure 1 It is a sectional view structure schematic diagram of the variable frequency double-magnetic electromagnetic heater;
[0017] Figure 2 It is a top view structure schematic diagram of the variable frequency double-magnetic electromagnetic heater;
[0018] Figure 3 It is a side view structure schematic diagram of the variable frequency double-magnetic electromagnetic heater;
[0019] Figure 4 The structure schematic view of the electromagnetic coil terminal is shown in the embodiment of the utility model.
[0020] Figure 5 The structure schematic view of the catheter and the liquid supply pipe is shown in the embodiment of the utility model. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.
[0022] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0023] It should be noted that in this paper, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of another identical element in the process, article or device including the element.
[0024] As Figures 1-5 shown, the utility model embodiment one provides a variable frequency double magnetic electromagnetic heater, including heater shell assembly, heating coil assembly, power supply assembly, explosion -proof terminal box assembly, liquid supply assembly, inner container assembly, the inner container assembly sets up in heater shell assembly, the explosion -proof terminal box assembly sets up in one end of heater shell assembly, the heating coil assembly is sleeved on the inner container assembly, one end of power supply assembly is connected with heating coil assembly, the other end passes through explosion -proof terminal box assembly and then external power supply, one end of liquid supply assembly is communicated with inner container assembly, the other end of liquid supply assembly is used for external liquid source.
[0025] As Figure 1 and Figure 2As shown, the heater housing assembly includes an outer shell 1 and a base plate 2, with the base plate 2 mounted on the bottom of the outer shell 1.
[0026] like Figure 1 As shown, a hydrothermal outlet 20 is provided on the base plate 2.
[0027] like Figure 1 and Figure 5 As shown, the inner liner assembly includes a heater inner shell 5, which is disposed inside the outer shell 1 and connected to the hot liquid outlet.
[0028] like Figure 1 As shown, the heating coil assembly includes a spiral high-temperature electromagnetic coil 3 and a fiberglass insulating sleeve 4. The spiral high-temperature electromagnetic coil 3 is wound around the fiberglass insulating sleeve 4, and the fiberglass insulating sleeve 4 is fitted onto the inner shell 5 of the heater, with a gap provided between the fiberglass insulating sleeve 4 and the inner shell 5 of the heater.
[0029] like Figures 1-5 As shown, the liquid supply assembly includes a liquid supply pipe 15 and a liquid supply port 14. The liquid supply port 14 is disposed on the outer wall of the outer shell 1. One end of the liquid supply pipe 15 is connected to the liquid supply port 14, and the other end of the liquid supply pipe 15 is connected to the inner shell 5 of the heater.
[0030] like Figure 1 As shown, the power supply component includes a conduit 18 and a high-temperature electromagnetic access line 7. The conduit 18 is fitted onto the liquid supply pipe 15, and the high-temperature electromagnetic access line 7 is disposed inside the conduit 18. One end of the high-temperature electromagnetic access line 7 is connected to the spiral high-temperature electromagnetic coil 3.
[0031] like Figures 1-4 As shown, the explosion-proof junction box assembly includes an explosion-proof junction box housing 9, an explosion-proof junction box housing cover 19, a ceramic terminal block fixing bracket 11, an electromagnetic coil terminal block 12, an electromagnetic coil lead wire inlet 13, and an explosion-proof inlet 10. One end of the explosion-proof junction box housing 9 is connected to the outer shell 1 by bolts 21. The explosion-proof inlet 10 is located on one side of the explosion-proof junction box housing 9 and is used to place an external power cord. The explosion-proof junction box housing cover 19 is located at the other end of the explosion-proof junction box housing 9. The other end of the high-temperature electromagnetic access line 7 is connected to the electromagnetic coil terminal block 12. The electromagnetic coil lead wire inlet 13 is located inside the explosion-proof junction box housing 19. The electromagnetic coil terminal block 12 is fixed inside the explosion-proof junction box housing 19 by the ceramic terminal block fixing bracket 11.
[0032] like Figures 1-5 As shown, a filler 6 is provided between the outer shell 1 and the conduit 18 support, and between the outer shell 1 and the fiberglass insulating sleeve 4. The filler 6 is magnesium oxide powder.
[0033] As Figure 2 shown, the explosion-proof junction box shell 19 is also provided with an electromagnetic coil temperature sensor 17 for monitoring the temperature of the spiral high-temperature electromagnetic coil 3.
[0034] The working principle of the utility model is as follows:
[0035] As Figures 1-5 shown, the utility model discloses a variable-frequency double-magnetic electromagnetic heater, and the core working principle is based on the law of electromagnetic induction and eddy current heat effect. The following is a detailed working principle elaboration:
[0036] When the external power supply is connected to the heater through the high-temperature electromagnetic access line 7, the electric energy is first safely introduced through the wiring device in the explosion-proof junction box shell 9, and under the action of the control circuit, the 50Hz alternating voltage is first converted into direct current voltage through the rectifier circuit, and then the control circuit further converts the direct current voltage into high-frequency alternating voltage with a frequency of 5kHz to 35kHz.
[0037] The high-frequency alternating current is supplied to the spiral high-temperature electromagnetic coil 3 wound on the glass steel insulation sleeve 4 by the spiral high-temperature electromagnetic coil 3. Due to the high-frequency change of the current, a rapidly changing high-frequency magnetic field is generated around the spiral high-temperature electromagnetic coil 3. The high-frequency magnetic field can penetrate the heater inner shell 5 (made of high-permeability material) and generate countless tiny closed current loops, i.e. eddy currents, in its interior and the heater outer shell 1 (made of high-permeability material) adjacent thereto. When the eddy current flows in the metal conductor, it will generate Joule heat due to the existence of resistance, thereby converting electric energy into heat energy.
[0038] With the generation and heat release of the eddy current in the heater inner shell 5 and the outer shell 1, these heat is rapidly transmitted to the heated medium (such as water or other fluids) by means of heat conduction and convection. At the same time, the magnesium oxide powder 6 filled between the inner and outer shells also plays a role in enhancing heat conduction and heat preservation, reducing heat loss.
[0039] In order to maintain the stability and efficiency of the heating process, the heater is provided with a temperature sensor (installed through the temperature sensor mounting hole 17). The sensor monitors the temperature of the heater interior or medium in real time and feeds back the signal to the control circuit.
[0040] The above is only a preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model.
Claims
1. A variable frequency dual-magnet electromagnetic heater, characterized by, The application relates to a heating device, which comprises a heater shell assembly, a heating coil assembly, a power supply assembly, an explosion-proof terminal box assembly, a liquid supply assembly and an inner container assembly.
2. The variable frequency dual-magnet electromagnetic heater of claim 1, wherein, The heater shell assembly comprises a shell and a bottom plate.
3. The variable frequency dual-magnet electromagnetic heater of claim 2, wherein, The inner container assembly comprises a heater inner shell.
4. The variable frequency dual-magnet electromagnetic heater of claim 3, wherein, The heating coil assembly comprises a spiral high-temperature electromagnetic coil and a glass steel insulation sleeve.
5. The variable frequency dual-magnet electromagnetic heater of claim 4, wherein, The liquid supply assembly comprises a liquid supply pipe and a liquid supply port.
6. The variable frequency dual-magnet electromagnetic heater of claim 5, wherein, The power supply assembly comprises a conduit and a high-temperature electromagnetic access wire.
7. The variable frequency dual-magnet electromagnetic heater of claim 6, wherein, The explosion-proof terminal box assembly comprises an explosion-proof terminal box shell, an explosion-proof terminal box shell cover, a ceramic terminal fixed support, an electromagnetic coil terminal, an electromagnetic coil lead access port and an explosion-proof wire inlet.
8. The variable frequency dual-magnet electromagnetic heater of claim 7, wherein, The shell and the conduit support and the glass steel insulation sleeve are filled with magnesium oxide powder.
9. The variable frequency dual-magnet electromagnetic heater of claim 8, wherein, The explosion-proof terminal box shell is provided with an electromagnetic coil temperature sensor for monitoring the temperature of the spiral high-temperature electromagnetic coil.