Medium-high frequency heating device

Abstract

The utility model relates to a medium-high frequency heating device. The medium-high frequency heating device comprises a shell, a quartz tube, a heating coil, an inlet connecting piece and an outlet connecting piece, the quartz tube is installed in the shell, and the heating coil is wound on the periphery of the quartz tube; the inlet connecting piece is arranged on one side of the shell, a through feeding port is formed in the inlet connecting piece, a detachable connecting piece top cover is arranged at the top of the inlet connecting piece, and a through vent hole is formed in the connecting piece top cover; the outlet connecting piece is arranged on the other side of the shell, and a through discharging port is formed in the outlet connecting piece. According to the medium-high frequency heating device disclosed by the utility model, a composite material to be processed is isolated from air by introducing inert gas into the quartz tube, and a plurality of sealing structures are arranged, so that the airtight performance of the device is improved, external air is prevented from permeating in the working process, and meanwhile, the internal inert gas is also prevented from leaking out; and the strict airtight requirement required by machining is met, and the production quality of products is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal composite material processing and manufacturing, and in particular to a medium- and high-frequency heating device. Background Technology

[0002] Metal composite materials require heating to approximately 400-500℃ during manufacturing. In industrial applications, medium- and high-frequency heating devices are commonly used. These devices convert electrical energy into heat energy using electromagnetic induction, achieving stable and rapid heating. During the heating process, the composite material must be isolated from air to prevent oxidation from contact with oxygen. However, typical medium- and high-frequency heating devices lack airtightness, making them unsuitable for the processing requirements of metal composite materials. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a medium- and high-frequency heating device.

[0004] A medium-high frequency heating device includes a housing, a quartz tube, a heating coil, an inlet connector, and an outlet connector. Two quartz tubes are installed inside the housing, and two heating coils are wound around the periphery of the quartz tubes. The inlet connector is located on one side of the housing and has two through-holes opposite to the quartz tubes. A detachable top cover with a through-hole vent is provided on the top of the inlet connector. The outlet connector is located on the other side of the housing and has two through-holes opposite to the quartz tubes.

[0005] The medium-high frequency heating device of this utility model seals the inlet and outlet of the quartz tube by setting an inlet connector and an outlet connector, and introduces inert gas into the quartz tube through the vent hole of the connector top cover, so that the material to be processed in the quartz tube is isolated from the air, avoiding oxidation due to contact with the air, meeting the airtight requirements for processing, and improving the production quality of the product.

[0006] Furthermore, the inlet connector also includes an inlet sealing plate, which is divided into a left sealing plate and a right sealing plate, and is slidably installed on the left and right sides of the inlet, respectively, for controlling the opening and closing of the inlet by sliding the inlet sealing plate.

[0007] Furthermore, the inlet connector also includes a spiral sleeve, one end of which is connected to the quartz tube and the other end of which is connected to the feed port.

[0008] Furthermore, the inlet connector also includes a sealing ring, which is disposed on the inner side of the end where the spiral sleeve connects to the quartz tube.

[0009] Furthermore, the outlet connector also includes a sleeve, one end of which is connected to the quartz tube and the other end of which is connected to the discharge port.

[0010] Furthermore, the outlet connector also includes a sealing ring, which is disposed on the inner side of the end where the sleeve connects to the quartz tube.

[0011] Furthermore, the sealing ring of the outlet connector is also disposed on the outside of the end where the sleeve connects to the outlet.

[0012] Furthermore, a sealing tape is provided on the outer side of the joint between the top cover of the connector and the inlet connector.

[0013] Furthermore, a sealing tape is provided at the joint between the inlet connector and the outer casing.

[0014] Furthermore, a sealing tape is provided at the joint between the outlet connector and the outer casing.

[0015] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a medium- and high-frequency heating device;

[0017] Figure 2 This is an exploded view of the inlet connector.

[0018] Figure 3 This is a schematic diagram of an exploded export connector. Detailed Implementation

[0019] In the processing of metal composite materials, the materials need to be heated to around 400-500℃. In industrial applications, medium- and high-frequency heating devices are commonly used. However, existing medium- and high-frequency heating devices lack airtightness, allowing outside air to come into contact with the material during heating. This can cause the metal composite material to be oxidized by oxygen in the air, affecting its processing performance. To address this issue, the inventors have proposed a novel medium- and high-frequency heating device. This device improves airtightness by modifying the inlet and outlet connections and introduces inert gases such as argon to further isolate the material from air, thus meeting the high airtightness requirements of the processing.

[0020] A medium-to-high frequency heating device includes a housing 10, a plurality of quartz tubes 20, a plurality of heating coils 30, an inlet connector 40, and an outlet connector 50. The quartz tubes 20 are installed inside the housing 10. The number of heating coils 30 is equal to the number of quartz tubes 20, and they are also installed inside the housing 10, respectively wound around the periphery of the quartz tubes 20. When alternating current is applied to the heating coils 30, an alternating magnetic field is formed inside the heating coils 30. The composite material to be processed inside the quartz tubes 20 generates alternating current (i.e., eddy current) due to the influence of the alternating magnetic field, thus generating heat and achieving heating. The inlet connector 40 is disposed at one end of the outer casing 10, and has a plurality of through inlets 41 in the direction of connection with the outer casing 10. The number and position of the inlets 41 are opposite to the number and position of the quartz tubes 20, and each quartz tube 20 is respectively locked in a corresponding inlet 41 at the end near the inlet connector 40. The composite material to be processed enters the quartz tube 20 through the inlet 41. The top of the inlet connector 40 is provided with a detachable connector top cover 42, and the connector top cover 42 has through vent holes 43 for introducing inert gas into the quartz tube 20. The outlet connector 50 is located at the other end of the outer shell 10, and has a plurality of through outlets 51 in the direction of connection with the outer shell 10. The number and position of the outlets 51 are opposite to the number and position of the quartz tubes 20, and each quartz tube 20 is respectively locked in a corresponding outlet 51 at one end near the outlet connector 50. The composite material leaves the quartz tube 20 through the outlets 51.

[0021] In some embodiments, the inlet connector 40 further includes an inlet sealing plate 44 and a spiral sleeve 45. The inlet sealing plate 44 is divided into a left sealing plate and a right sealing plate, which are slidably installed on the left and right sides of the inlet 41, respectively. The opening and closing of the inlet 41 can be controlled by sliding the left and right sealing plates. Inlet sealing plates 44 of different shapes can also achieve different functions. For example, a semi-circular opening is provided on the right side of the left sealing plate and a semi-circular opening is also provided on the left side of the right sealing plate. The two together form a circular opening. The size of the circular opening can be adjusted by sliding and adjusting the distance between the left and right sealing plates, thereby controlling the opening size of the inlet 41; or, the left and right sealing plates are rectangular, and when they abut, they completely seal the inlet 41, improving the airtightness of the device.

[0022] One end of the spiral sleeve 45 is connected to the quartz tube 20, and the other end is connected to the feed inlet 41. Specifically, the outer side of the spiral sleeve 45 is threaded, and the inner side is smooth. One end of the spiral sleeve 45 is screwed into the feed inlet 41 through the outer thread, and the other end is sleeved on the quartz tube 20. Preferably, to improve sealing performance, the inner diameter of the spiral sleeve 45 is slightly larger than the outer diameter of the quartz tube 20. More preferably, a sealing ring 60 is provided at the connection between the spiral sleeve 45 and the quartz tube 20 to improve airtightness.

[0023] In some embodiments, the outlet connector 50 further includes a sleeve 52. The inner and outer diameters of one end of the sleeve 52 are equivalent to the inner and outer diameters of the quartz tube 20, and the inner diameter of the other end is slightly larger than the outer diameter of the quartz tube 20. The smaller diameter end of the sleeve 52 is embedded in the discharge port 51, and the larger diameter end is sleeved on the quartz tube 20. This ensures that the composite material leaving the quartz tube 20 can only contact the sleeve 52 without causing scratches or other damage to the outlet connector 50. This prevents the high-temperature composite material from damaging the outlet connector 50, and also prevents debris from scratching the outlet connector 50 from adhering to the composite material and affecting the processing quality. It should be noted that the material of the sleeve 52 is a material that will not affect the processing of the composite material. For example, when the composite material in the quartz tube 20 is titanium, the material of the sleeve 52 can be aluminum alloy, and aluminum alloy debris that scratches and adheres to the composite material will not have an adverse effect. More preferably, a sealing ring 60 is provided at the connection between the inner side of the sleeve 52 and the quartz tube 20 to improve the sealing performance; correspondingly, a sealing ring 60 is also provided at the connection between the outer side of the sleeve 52 and the discharge port 51, and the material of the sealing ring 60 has good high temperature resistance, for example, a high temperature resistant fluororubber sealing ring is used, which can maintain good performance in an environment of 250°C for a long time.

[0024] In use, inert gas is first introduced into the quartz tube 20 through the vent 43 of the connector top cover 42 to expel the air from the quartz tube 20. After the air in the quartz tube 20 is purged, the material to be processed is fed into the quartz tube 20 through the feed port 41. At the same time, the heating coil 30 is energized to generate eddy currents in the material and heat it. After heating to the set temperature, the material leaves the quartz tube 20 through the discharge port 51. During the heating process, the quartz tube 20 is filled with inert gas, which isolates the material from the air and prevents it from being oxidized by the air.

[0025] Preferably, in order to further improve the airtightness of the device, a sealing tape is provided at the joint between the inlet connector 40 and the outer shell 10, and correspondingly, a sealing tape is also provided at the joint between the outlet connector 50 and the outer shell 10.

[0026] The medium-high frequency heating device of this invention isolates the composite material to be processed from air by introducing inert gas into a quartz tube, thus preventing the air from oxidizing the material. Furthermore, by incorporating multiple sealing structures, including an inlet sealing plate, a spiral sleeve, a sealing ring, and a tubing, the device's airtightness is improved, preventing external air from seeping in during operation and also preventing the leakage of internal inert gas. This meets the stringent airtightness requirements of processing and improves product quality.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A medium-high frequency heating device, characterized in that: The device includes an outer shell, several quartz tubes, several heating coils, an inlet connector, and an outlet connector. The quartz tubes are installed inside the outer shell. The number of heating coils is equal to the number of quartz tubes and is also installed inside the outer shell, each coil corresponding to the outer shell of a quartz tube. The inlet connector is located at one end of the outer shell and has two through-holes in the direction of connection with the outer shell, with the inlet holes positioned opposite to the quartz tubes. The top of the inlet connector has a detachable connector cover with through-holes for introducing inert gas into the quartz tubes. The outlet connector is located at the other end of the outer shell and has two through-holes in the direction of connection with the outer shell, with the outlet holes positioned opposite to the quartz tubes.

2. The medium-high frequency heating device according to claim 1, characterized in that: The inlet connector also includes an inlet sealing plate, which is divided into a left sealing plate and a right sealing plate, which are slidably installed on the left and right sides of the inlet, respectively, for controlling the opening and closing of the inlet by sliding the inlet sealing plate.

3. The medium-high frequency heating device according to claim 2, characterized in that: The inlet connector also includes a spiral sleeve, one end of which is connected to the quartz tube and the other end of which is connected to the feed port.

4. The medium-high frequency heating device according to claim 3, characterized in that: The inlet connector also includes a sealing ring, which is disposed on the inner side of the end where the spiral sleeve connects to the quartz tube.

5. The medium-high frequency heating device according to any one of claims 1-4, characterized in that: The outlet connector also includes a sleeve, one end of which is connected to the quartz tube and the other end of which is connected to the discharge port.

6. The medium-high frequency heating device according to claim 5, characterized in that: The outlet connector also includes a sealing ring, which is disposed on the inner side of the end where the sleeve connects to the quartz tube.

7. The medium-high frequency heating device according to claim 6, characterized in that: The sealing ring of the outlet connector is also provided on the outside of the end where the sleeve connects to the outlet.

8. The medium-high frequency heating device according to claim 1, characterized in that: A sealing tape is provided on the outside of the joint between the top cover of the connector and the inlet connector.

9. The medium-high frequency heating device according to claim 1, characterized in that: A sealing tape is provided at the joint between the inlet connector and the outer shell.

10. The medium-high frequency heating device according to claim 1, characterized in that: A sealing tape is provided at the joint between the outlet connector and the outer shell.

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