Parallel variable-frequency double-magnetic electromagnetic heater

Abstract

The invention discloses a parallel variable-frequency double-magnetic electromagnetic heater which comprises an anti-explosion junction box mechanism, a threading box mechanism, a metal heating pipe mechanism and a high-temperature electromagnetic wire, the anti-explosion junction box mechanism is connected with the threading box mechanism and used for being externally connected with a power source, and the metal heating pipe mechanism is arranged in the threading box mechanism and used for being externally connected with the power source. One end of the high-temperature electromagnetic wire is connected with the output end of the anti-explosion junction box mechanism, and the other end of the high-temperature electromagnetic wire penetrates through the metal heating pipe mechanism and then is connected with the input end of the anti-explosion junction box mechanism. The threading box mechanism, the metal heating pipe mechanism and the high-temperature electromagnetic wire are arranged, the high-temperature electromagnetic wire sequentially penetrates through the multiple metal heating pipes, the high-frequency electromagnetic induction heating technology is adopted, heat generated by eddy current in a metal conductor is directly used for heating, loss of energy in the conversion process is reduced, and compared with a traditional resistance heating mode, the heating efficiency is improved. According to the invention, the heat efficiency is obviously improved and can be improved by about 20% generally, the efficient utilization of energy is realized, and the operation cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of heaters, and in particular relates to a parallel variable frequency dual-magnetic electromagnetic heater. Background Art

[0002] With the continuous implementation of the policy of replacing coal with electricity and coal with gas, many areas across the country are implementing the policy of replacing coal with electricity. Traditional electric heating methods often have problems such as low thermal efficiency, slow heating speed, and high energy consumption. Electromagnetic heating technology has gradually gained favor in the market for its high efficiency, environmental protection, and energy saving. However, the existing electromagnetic heaters still need to be improved in terms of high-frequency electromagnetic conversion efficiency, heat energy conduction efficiency, and safety. Summary of the invention

[0003] In view of this, the main purpose of the present invention is to provide a parallel variable frequency dual-magnetic electromagnetic heater.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] Embodiment 1 of the present invention provides a parallel variable frequency dual-magnetic electromagnetic heater, including an explosion-proof junction box mechanism, a threading box mechanism, a metal heating tube mechanism, and a high-temperature electromagnetic wire. The explosion-proof junction box mechanism is connected to the threading box mechanism and is used for an external power supply. The metal heating tube mechanism is arranged in the threading box mechanism. One end of the high-temperature electromagnetic wire is connected to the output end of the explosion-proof junction box mechanism, and the other end of the high-temperature electromagnetic wire passes through the metal heating tube mechanism and is connected to the input end of the explosion-proof junction box mechanism.

[0006] In the above scheme, the explosion-proof junction box assembly includes an explosion-proof junction box shell, an explosion-proof junction box shell cover, an incoming line terminal, an outgoing line terminal, and an explosion-proof inlet. One end of the explosion-proof junction box shell is connected to the threading box mechanism, and the explosion-proof junction box shell cover is arranged at the other end of the explosion-proof junction box shell. The explosion-proof inlet is arranged on one side of the explosion-proof junction box shell. The incoming line terminal and the outgoing line terminal are both arranged in the explosion-proof junction box shell, and are used to connect to the positive and negative poles of the power line connected to the explosion-proof inlet.

[0007] In the above solution, an explosion-proof rubber sealing ring is arranged between the explosion-proof junction box housing cover and the explosion-proof junction box housing.

[0008] In the above scheme, the wire threading box mechanism includes a lower wire threading box, a lower wire threading box end cover, and an upper wire threading box end cover. The lower wire threading box cover is arranged on the lower wire threading box, and the upper wire threading box end cover is connected to the bottom of the explosion-proof junction box housing.

[0009] In the above scheme, the metal heating tube mechanism includes a plurality of metal heating tube assemblies, and the plurality of metal heating tube assemblies are evenly arranged between the lower threading box end cover and the upper threading box end cover, and the middle part is fixed by a support plate.

[0010] In the above scheme, the metal heating tube assembly includes a metal heating tube, a magnesium oxide powder filler, and a flange orifice plate. The magnesium oxide powder filler is filled on the inner wall of the metal heating tube, and flange orifice plates are respectively arranged at both ends of the metal heating tube.

[0011] In the above solution, a plurality of line inlets and line outlets are arranged on the flange hole plate.

[0012] In the above scheme, after one end of the high-temperature electromagnetic wire is connected to the incoming wiring terminal, the other end passes through the metal heating tube and is led out from the other end of the flange hole plate into the inlet of another adjacent metal heating tube, exits from the inlet of the flange hole plate at the other end of the metal heating tube, enters the outlet of the flange hole plate at the other end of the metal heating tube, leads out and enters the other end entrance of the adjacent metal heating tube, and after repeating the action, enters the outlet of the flange hole plate at one end of the last metal heating tube and is connected to the outgoing wiring terminal.

[0013] In the above solution, a temperature sensor mounting hole is provided on the flange hole plate.

[0014] Compared with the prior art, the present invention sets a wire box mechanism, a metal heating tube mechanism, and a high-temperature electromagnetic wire. The high-temperature electromagnetic wire passes through multiple metal heating tubes in sequence, and adopts high-frequency electromagnetic induction heating technology. The heat generated by eddy currents in the metal conductor is directly used for heating, thereby reducing energy loss during the conversion process. Compared with the traditional resistance heating method, the thermal efficiency of the present invention is significantly improved, usually about 20% higher, thereby achieving efficient use of energy and reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to disclose a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a schematic cross-sectional structure diagram of a parallel variable frequency dual-magnetic electromagnetic heater according to an embodiment of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the flange orifice plate described in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, article or device. In the absence of more restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, article or device including the element.

[0021] like Figure 1 and Figure 2 As shown, embodiment 1 of the present invention provides a parallel variable frequency dual-magnetic electromagnetic heater, including an explosion-proof junction box mechanism 2, a threading box mechanism 2, a metal heating tube mechanism 3, and a high-temperature electromagnetic wire 4. The explosion-proof junction box mechanism is connected to the threading box mechanism for an external power supply. The metal heating tube mechanism is arranged in the threading box mechanism. One end of the high-temperature electromagnetic wire 4 is connected to the output end of the explosion-proof junction box mechanism, and the other end of the high-temperature electromagnetic wire 4 passes through the metal heating tube mechanism and is connected to the input end of the explosion-proof junction box mechanism.

[0022] like Figure 1 As shown, the explosion-proof junction box assembly includes an explosion-proof junction box housing 9, an explosion-proof junction box housing cover 19, an incoming line terminal 13, an outgoing line terminal 14, and an explosion-proof inlet port 10. One end of the explosion-proof junction box housing 9 is connected to the threading box mechanism, and the explosion-proof junction box housing cover 19 is arranged at the other end of the explosion-proof junction box housing 9. The explosion-proof inlet port 10 is arranged on one side of the explosion-proof junction box housing 9. The incoming line terminal 13 and the outgoing line terminal 14 are both arranged in the explosion-proof junction box housing 9, and are used to be connected to the positive and negative poles of the power line connected to the explosion-proof inlet port 10.

[0023] like Figure 1 As shown, an explosion-proof rubber sealing ring 22 is provided between the explosion-proof junction box housing cover 19 and the explosion-proof junction box housing 9 .

[0024] like Figure 1As shown, the wire threading box mechanism includes a lower wire threading box 2 and a lower wire threading box end cover 20 . The lower wire threading box cover 20 is arranged on the lower wire threading box 2 , and the upper wire threading box end cover 12 is connected to the bottom of the explosion-proof junction box housing 9 .

[0025] like Figure 1 As shown, the metal heating tube mechanism includes a plurality of metal heating tube assemblies, and the plurality of metal heating tube assemblies are evenly arranged between the lower threading box 2 and the upper threading box 12 , and the middle part is fixed by a support plate 16 .

[0026] like Figure 1 As shown, the metal heating tube assembly includes a metal heating tube 1, a magnesium oxide powder filler 3, and a flange orifice plate 21. The magnesium oxide powder filler 3 is filled in the inner wall of the metal heating tube 1, and flange orifice plates 21 are respectively arranged at both ends of the metal heating tube 1.

[0027] like Figure 2 As shown, the flange hole plate 21 is provided with a plurality of line inlets 17 and line outlets 18 .

[0028] like Figure 1 and Figure 2 As shown, after one end of the high-temperature electromagnetic wire 4 is connected to the incoming wiring terminal 13, the other end passes through the metal heating tube 1, is led out from the other end of the flange hole plate 21, enters the inlet of another adjacent metal heating tube 1, exits from the inlet port 17 of the flange hole plate 21 at the other end of the metal heating tube 1, enters the outlet port 18 of the flange hole plate 21 at the other end of the metal heating tube 1, leads out, and then enters the other end inlet 17 of the adjacent metal heating tube 1, and after repeating the action, enters the outlet port 18 of the flange hole plate 21 at one end of the last metal heating tube 1 and is connected to the outgoing wiring terminal 14.

[0029] like Figure 2 As shown, the flange orifice plate 21 is provided with a temperature sensor mounting hole 15 .

[0030] The working principle of the present invention is as follows:

[0031] like Figure 1 and Figure 2 As shown, the parallel variable frequency dual magnetic electromagnetic heater proposed by the present invention has a core working principle based on the law of electromagnetic induction and eddy current thermal effect. The following is a detailed description of the working principle:

[0032] When the external power supply is connected to the heater through the high-temperature electromagnetic access line 4, the electric energy is first safely introduced through the wiring device in the explosion-proof junction box housing 9. Under the action of the control circuit, the 50Hz AC voltage is first converted into a DC voltage through the rectifier circuit. Subsequently, the control circuit further converts the DC voltage into a high-frequency AC voltage with a frequency of 5kHz to 35kHz.

[0033] The electromagnetic heater converts electrical energy into high-frequency alternating current through an electromagnetic heating controller. When the current passes through the high-temperature electromagnetic wire 4, an alternating magnetic field is generated around it. When a metal container containing iron or other metals with good conductivity (such as the metal heating tube 1 in this example) is placed in the magnetic field, the surface of the metal container will cut the alternating magnetic lines of force, thereby generating alternating current (i.e. eddy current) around the metal heating tube. The eddy current causes the carriers around the metal heating tube and the lower junction box to move irregularly at high speed, and the carriers collide and rub with atoms to generate heat energy, thereby heating the material in the container.

[0034] In order to maintain the stability and efficiency of the heating process, the heater is built with a temperature sensor (installed through the temperature sensor mounting hole 15). The sensor monitors the temperature inside the heater or the medium in real time and feeds the signal back to the control circuit.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A parallel variable frequency dual magnetic electromagnetic heater, characterized in that: It includes an explosion-proof junction box mechanism, a wire threading box mechanism, a metal heating tube mechanism, and a high-temperature electromagnetic wire. The explosion-proof junction box mechanism is connected to the wire threading box mechanism and is used for an external power supply. The metal heating tube mechanism is arranged in the wire threading box mechanism. One end of the high-temperature electromagnetic wire is connected to the output end of the explosion-proof junction box mechanism, and the other end of the high-temperature electromagnetic wire passes through the metal heating tube mechanism and is connected to the input end of the explosion-proof junction box mechanism.

2. The parallel variable frequency dual magnetic electromagnetic heater according to claim 1 is characterized in that: The explosion-proof junction box assembly includes an explosion-proof junction box housing, an explosion-proof junction box housing cover, incoming wiring terminals, outgoing wiring terminals, and an explosion-proof inlet. One end of the explosion-proof junction box housing is connected to a threading box mechanism, the explosion-proof junction box housing cover is disposed at the other end of the explosion-proof junction box housing, the explosion-proof inlet is disposed on one side of the explosion-proof junction box housing, and the incoming wiring terminals and the outgoing wiring terminals are both disposed in the explosion-proof junction box housing for connection to the positive and negative poles of a power line connected to the explosion-proof inlet.

3. The parallel variable frequency dual magnetic electromagnetic heater according to claim 2 is characterized in that: An explosion-proof rubber sealing ring is arranged between the explosion-proof junction box housing cover and the explosion-proof junction box housing.

4. The parallel variable frequency dual magnetic electromagnetic heater according to claim 3 is characterized in that: The wire threading box mechanism comprises a lower wire threading box and a lower wire threading box end cover, and the lower wire threading box cover is arranged on the lower wire threading box.

5. The parallel variable frequency dual magnetic electromagnetic heater according to claim 4 is characterized in that: The metal heating tube mechanism comprises a plurality of metal heating tube assemblies, and the plurality of metal heating tube assemblies are evenly arranged between the lower threading box and the upper threading box, and the middle part is fixed by a support plate.

6. The parallel variable frequency dual magnetic electromagnetic heater according to claim 5, characterized in that: The metal heating tube assembly comprises a metal heating tube, a magnesium oxide powder filler, and a flange orifice plate. The magnesium oxide powder filler is filled in the inner wall of the metal heating tube, and flange orifice plates are respectively arranged at both ends of the metal heating tube.

7. The parallel variable frequency dual magnetic electromagnetic heater according to claim 6, characterized in that: The flange hole plate is provided with a plurality of line inlets and line outlets.

8. The parallel variable frequency dual magnetic electromagnetic heater according to claim 7, characterized in that: After one end of the high-temperature electromagnetic wire is connected to the incoming wiring terminal, the other end passes through the metal heating tube, is led out from the other end of the flange hole plate, enters the inlet of another adjacent metal heating tube, exits from the inlet of the flange hole plate at the other end of the metal heating tube, enters the outlet of the flange hole plate at the other end of the metal heating tube, leads out and enters the other end entrance of the adjacent metal heating tube, and after repeating the action, enters the outlet of the flange hole plate at one end of the last metal heating tube and is connected to the outgoing wiring terminal.

9. The parallel variable frequency dual magnetic electromagnetic heater according to claim 8, characterized in that: The flange hole plate is provided with a temperature sensor mounting hole.

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