A high frequency heating device

Abstract

The application discloses a high-frequency heating device and belongs to the technical field of heating equipment. Mainly including a host computer, the host computer is provided with an induction coil, further comprising: a suction sleeve, which is sleeved on the outer end of the horizontal section of the induction coil, the suction sleeve comprises an upper sleeve body and a lower sleeve body, the upper sleeve body and the lower sleeve body are detachably connected, and the rear ends of the upper sleeve body and the lower sleeve body are fixed to the host computer, the front end of the upper sleeve body is fixedly provided with an upper air guide cover, the front end of the lower sleeve body is fixedly provided with a lower air guide cover, and the opening range of the upper air guide cover is larger than that of the lower air guide cover; a filtering mechanism is fixed to one side of the host computer and used for filtering smoke passing through; and a fan is installed on one side of the host computer and used for generating negative pressure to suck in the smoke. In the application, the directional suction sleeve and the air guide cover are arranged, the fan and the filtering mechanism are matched, efficient collection and purification of high-frequency heating smoke are realized, and environmental pollution and health hazards of personnel are prevented.

Description

Technical Field

[0001] This application relates to the field of heating equipment technology, specifically a high-frequency heating device. Background Technology

[0002] High-frequency heating devices utilize electromagnetic induction to generate heat. When an alternating current passes through a specific coil, an alternating magnetic field is formed around the coil. Metal conductors within this magnetic field will generate an induced current due to electromagnetic induction, thus producing heat. This allows for rapid heating of the object to the required temperature in a short time, with relatively low energy consumption. High-frequency heating devices are widely used in numerous industrial applications. In metal forging, they can be used to rapidly heat metal materials for subsequent forging processes; in welding, they also provide a stable and efficient heat source, ensuring welding quality.

[0003] However, the surfaces of metal workpieces subjected to high-frequency heating often contain contaminants such as oil, rust-preventive oil, cutting fluid residue, and dust. These contaminants react rapidly at high temperatures to produce fumes containing harmful substances such as metal oxides and oil decomposition products. Currently, these fumes are mostly treated through workshop ventilation systems, which suffer from low collection efficiency and targeting. The resulting fumes not only pollute the environment but can also be inhaled by operators, posing a health hazard. Therefore, it is necessary to provide a high-frequency heating device to address these issues.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a high-frequency heating device that, by setting up a directional air intake sleeve and an air guide hood, in conjunction with a fan and a filtration mechanism, achieves efficient collection and purification of high-frequency heating flue gas, thereby preventing environmental pollution and harm to human health.

[0006] The technical solution adopted by this application to solve its technical problem is: a high-frequency heating device, including a main unit, on which an induction coil is installed, and further comprising: An air intake sleeve is fitted over the outer end of the horizontal section of the induction coil. The air intake sleeve includes an upper sleeve body and a lower sleeve body. The upper sleeve body and the lower sleeve body are detachably connected and their rear ends are fixed to the main unit. An upper air guide cover is fixed to the front end of the upper sleeve body and a lower air guide cover is fixed to the front end of the lower sleeve body. The opening range of the upper air guide cover is larger than that of the lower air guide cover. A filtration mechanism, fixed to one side of the main unit, is used to filter the passing flue gas; A fan, installed on one side of the main unit, is used to generate negative pressure to draw in flue gas.

[0007] Furthermore, both the upper and lower sleeves are fixedly connected to the outer sides with connecting edges, and the upper and lower connecting edges are connected by screws. The rear ends of the upper and lower sleeves are fixedly connected to mounting bases, and the mounting bases are fixedly connected to the main unit by screws.

[0008] Furthermore, both the upper and lower air guide hoods include an outer cover, which is fixed to the upper and lower sleeves respectively. An inner cover is provided on the inner side of the outer cover, and there is a gap between the outer cover and the inner cover, which are fixedly connected by multiple connecting columns.

[0009] Furthermore, the filtration mechanism includes a filter box fixed to one side of the main unit, a filter element is provided inside the filter box, an air inlet end of the filter element is fixedly connected to an air vent pipe, one end of the air vent pipe is fixedly connected to the lower end face of the lower sleeve, and an opening is provided at the connection between the lower sleeve and the air vent pipe.

[0010] Furthermore, guide rails are fixedly connected to both the upper and lower sides of the filter box, the filter element is slidably connected between the two guide rails, one end of the filter element extends out of the reserved opening in the filter box and is fixedly connected to a sealing cover, and a handle is fixedly connected to the outer surface of the sealing cover.

[0011] Furthermore, a second vent pipe is fixedly connected to the air outlet of the filter box, and one end of the second vent pipe is fixedly connected to the air inlet of the fan.

[0012] Furthermore, the upper sleeve, lower sleeve, upper air guide cover, and lower air guide cover are all made of high-temperature resistant materials.

[0013] The beneficial effects of this application are as follows: The high-frequency heating device provided by this application, through the directional design of the upper and lower air guide hoods, has a larger opening in the upper air guide hood, which can fully capture the flue gas rising in the heating area. Combined with the negative pressure generated by the fan, it can achieve efficient collection of flue gas. It is also equipped with a filtration mechanism, and the filter element can effectively filter harmful substances in the flue gas. The purified emissions meet environmental protection requirements and protect the health of operators.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a high-frequency heating device according to this application; Figure 2This is a schematic diagram of the filter mechanism of a high-frequency heating device according to this application; Figure 3 This is a schematic diagram of the air intake sleeve of a high-frequency heating device according to this application; Figure 4 This is a schematic diagram of the upper and lower air guide shrouds of a high-frequency heating device according to this application; The following are the labeling elements in the figure: 1. Main unit; 2. Induction coil; 3. Suction sleeve; 31. Upper sleeve; 32. Lower sleeve; 33. Upper air guide hood; 331. Outer cover; 332. Inner cover; 333. Connecting column; 34. Lower air guide hood; 35. Mounting base; 36. Connecting edge; 4. Vent pipe one; 5. Filter mechanism; 51. Filter box; 52. Guide rail; 53. Filter element; 54. Sealing cover; 55. Handle; 6. Vent pipe two; 7. Fan. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] like Figure 1-4 As shown, this application provides a high-frequency heating device, including a main unit 1. The main unit 1 integrates a high-frequency generator, control circuit, etc. An induction coil 2 is installed at the front end of the main unit 1. The induction coil 2 is made of copper tube and generates an alternating magnetic field after a high-frequency current is passed through it, thereby realizing induction heating of metal workpieces.

[0019] An air suction sleeve 3 is fitted on the outer end of the horizontal section of the induction coil 2. The air suction sleeve 3 is used to collect the flue gas generated by heating. The air suction sleeve 3 includes an upper sleeve body 31 and a lower sleeve body 32. Both the upper sleeve body 31 and the lower sleeve body 32 are semi-rectangular cylinders, which together form a complete rectangular cylinder structure. The sleeve is fitted on the outside of the horizontal section of the induction coil 2, and a gap is left between it and the induction coil 2.

[0020] Both the upper sleeve 31 and the lower sleeve 32 have an integrally formed connecting edge 36 on their outer sides. Multiple screw holes are provided on the connecting edge 36. The upper and lower connecting edges 36 are detachably connected by screws, which facilitates the disassembly of the upper sleeve 31 and the lower sleeve 32 to clean the internal dust or repair the induction coil 2.

[0021] The upper sleeve 31 and the lower sleeve 32 are fixed with mounting bases 35 at their rear ends. The mounting bases 35 are fixedly connected to the front end of the main unit 1 by screws to ensure that the suction sleeve 3 is installed securely.

[0022] The upper sleeve 31 is fixed with an upper air guide hood 33 at its front end, and the lower sleeve 32 is fixed with a lower air guide hood 34 at its front end. The opening range of the upper air guide hood 33 is larger than that of the lower air guide hood 34, which facilitates the absorption of rising flue gas. The opening of the air guide hood 33 is flared and tilted upward, while the opening of the lower air guide hood 34 is flared and tilted downward, which can fully capture the flue gas generated in the heating area and improve the collection efficiency.

[0023] The upper air guide hood 33 and the lower air guide hood 34 have the same structure, both including an outer cover 331 and an inner cover 332. The outer cover 331 is fixed to the upper sleeve 31 and the lower sleeve 32 respectively. The inner cover 331 is located inside the outer cover 331. There is a gap between the outer cover 331 and the inner cover 332. They are fixed by welding through multiple connecting columns 333. The gap design can reduce heat transfer and prevent the outer temperature from being too high. The connecting columns 333 ensure that the inner and outer covers are firmly connected, while not affecting the flow of flue gas. The flowing air can also carry away some of the heat from the inner cover 331 and the outer cover 331, playing a role in cooling down.

[0024] A filter mechanism 5 is fixed on one side of the main unit 1. The filter mechanism 5 includes a filter box 51. The filter box 51 is hollow inside. Guide rails 52 are welded and fixed on both the upper and lower sides of the filter box 51. A filter element 53 is slidably connected between the two guide rails 52. The filter element 53 is a composite filter element of activated carbon and glass fiber, which can effectively filter harmful substances such as metal oxides and oil stains in the flue gas.

[0025] One end of the filter element 53 extends out of the pre-reserved opening in the filter box 51 and is fixedly connected to a sealing cover 54. The size of the sealing cover 54 is adapted to the size of the opening in the filter box 51. A sealing ring is pasted on the inner side of the sealing cover 54 to ensure the airtightness of the filter box 51 and prevent flue gas leakage. A handle 55 is fixed on the outer surface of the sealing cover 54, through which the filter element 53 can be quickly pulled out or inserted for easy replacement.

[0026] The air inlet end of the filter element 53 is fixedly connected to the vent pipe 4. One end of the vent pipe 4 is fixed to the lower end face of the lower sleeve 32. An opening is provided at the connection between the lower sleeve 32 and the vent pipe 4. The opening communicates with the inside of the vent pipe 4, so that the flue gas in the suction sleeve 3 can enter the vent pipe 4 through the opening.

[0027] A fan 7 is fixed on one side of the main unit 1. A second ventilation pipe 6 is fixedly connected to the air outlet of the filter box 51. One end of the second ventilation pipe 6 is fixedly connected to the air inlet of the fan 7. When the fan 7 is working, it generates negative pressure, forming a flue gas flow channel from the air guide hood to the air intake sleeve 3, the first ventilation pipe 4, the filter box 5, the second ventilation pipe 6 and then to the fan 7.

[0028] The upper sleeve 31, lower sleeve 32, upper air guide hood 33, and lower air guide hood 34 are all made of high-temperature resistant materials, such as composite ceramic materials, to ensure stable operation in the high-temperature environment generated by high-frequency heating and to prevent deformation and damage.

[0029] Working principle: When in use, first turn on the fan 7. The fan 7 generates negative pressure, which forms a negative pressure environment in the area of ​​the suction sleeve 3 and the air guide hood. Then start the main unit 1, and pass a high-frequency current through the induction coil 2 to perform induction heating on the metal workpiece placed in the heating area.

[0030] During the heating process, the fumes generated on the surface of the metal workpiece are drawn into the suction sleeve 3 through the openings of the upper air guide hood 33 and the lower air guide hood 34 under negative pressure. Then, they enter the ventilation pipe 4 through the opening of the lower sleeve 32 and flow into the filter box 51. The filter element 53 filters out harmful substances in the fumes. The purified fumes enter the fan 7 through the second ventilation pipe 6 and are discharged to the atmosphere or the workshop ventilation system by the fan 7.

[0031] When replacing filter element 53, hold handle 55 to pull filter element 53 out of guide rail 52 of filter box 51, replace with new filter element 53, and then insert the new filter element into filter box 51 along guide rail 52 to complete the replacement.

[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-frequency heating device, comprising a main unit (1), wherein an induction coil (2) is mounted on the main unit (1), characterized in that, Also includes: The suction sleeve (3) is fitted on the outer end of the horizontal section of the induction coil (2). The suction sleeve (3) includes an upper sleeve (31) and a lower sleeve (32). The upper sleeve (31) and the lower sleeve (32) are detachably connected and their rear ends are fixed to the host (1). The front end of the upper sleeve (31) is fixed with an upper air guide cover (33), and the front end of the lower sleeve (32) is fixed with a lower air guide cover (34). The opening range of the upper air guide cover (33) is larger than that of the lower air guide cover (34). The filter mechanism (5), which is fixed to one side of the main unit (1), is used to filter the flue gas passing through; A fan (7) is installed on one side of the main unit (1) to generate negative pressure to draw in flue gas.

2. The high-frequency heating device according to claim 1, characterized in that: The upper sleeve (31) and the lower sleeve (32) are both fixedly connected to the outer side of the connecting edge (36), and the two connecting edges (36) are connected by screws. The rear ends of the upper sleeve (31) and the lower sleeve (32) are fixedly connected to the mounting base (35), and the mounting base (35) is fixedly connected to the host (1) by screws.

3. The high-frequency heating device according to claim 2, characterized in that: The upper air guide hood (33) and the lower air guide hood (34) both include an outer cover (331). The two outer covers (331) are fixed to the upper sleeve (31) and the lower sleeve (32) respectively. An inner cover (332) is provided on the inner side of the outer cover (331). There is a gap between the outer cover (331) and the inner cover (332) and they are fixedly connected by multiple connecting columns (333).

4. The high-frequency heating device according to claim 1, characterized in that: The filtration mechanism (5) includes a filter box (51) fixed on one side of the host (1). The filter box (51) is equipped with a filter element (53). The air inlet end of the filter element (53) is fixedly connected to a ventilation pipe (4). One end of the ventilation pipe (4) is fixedly connected to the lower end face of the lower sleeve (32). An opening is provided at the connection between the lower sleeve (32) and the ventilation pipe (4).

5. A high-frequency heating device according to claim 4, characterized in that: The filter box (51) is fixedly connected to guide rails (52) on both the upper and lower sides. The filter element (53) is slidably connected between the two guide rails (52). One end of the filter element (53) extends out of the reserved opening in the filter box (51) and is fixedly connected to a sealing cover (54). A handle (55) is fixedly connected to the outer surface of the sealing cover (54).

6. A high-frequency heating device according to claim 4, characterized in that: The air outlet of the filter box (51) is fixedly connected to a second ventilation pipe (6), and one end of the second ventilation pipe (6) is fixedly connected to the air inlet of the fan (7).

7. The high-frequency heating device according to claim 1, characterized in that: The upper sleeve (31), lower sleeve (32), upper air guide (33), and lower air guide (34) are all made of high-temperature resistant materials.

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