A temperature measuring device for an object heated by an induction furnace

Abstract

The utility model relates to a device for measuring the temperature of an object being heated in an induction furnace, comprising a purge component, which comprises a temperature measuring channel, the temperature measuring channel is connected to the inside of the induction furnace and is aimed at the heated object in the induction furnace, and an inert gas is passed through the temperature measuring channel; a sealed temperature-resistant component, which seals the proximal end of the temperature measuring channel; a temperature measuring component, which is arranged opposite to the temperature measuring channel, and the temperature measuring component is arranged on a side of the sealed temperature-resistant component opposite to the temperature measuring channel. By arranging the purge component and the sealed temperature-resistant component, the utility model not only effectively improves the detection accuracy of the temperature of the heated object, but also improves the heat resistance and corrosion resistance of the temperature measuring component, thereby ensuring the accuracy of the induction furnace temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber preform manufacturing, in particular to a temperature measuring device for an object heated by an induction furnace. Background Art

[0002] The key performance of the induction furnace used in graphite heating to manufacture optical fiber preforms includes temperature accuracy. If the temperature of the induction furnace is too low, the loose body of the optical fiber preform cannot be completely dehydrated or sintered to be transparent. If the temperature is too high, the optical fiber preform is easily stretched and deformed. In the process of manufacturing optical fiber preforms, detecting the temperature of the heated object in the induction furnace is beneficial to accurately control the temperature of the induction furnace and optimize the process parameters. The temperature detection device currently used to detect the heated object in the induction furnace of the optical fiber preform is not accurate and cannot work stably in a high temperature environment, resulting in the inability to guarantee the temperature accuracy of the induction furnace and the inability to guarantee the excellent performance parameters of the optical fiber preform. Utility Model Content

[0003] To this end, the technical problem to be solved by the utility model is to overcome the problem that the temperature detection device in the prior art is inaccurate and cannot work stably in a high temperature environment, and further provide a temperature measuring device for an object being heated in an induction furnace, which not only effectively improves the detection accuracy of the temperature of the heated object, but also improves the heat resistance and corrosion resistance of the temperature measuring component.

[0004] In order to solve the above technical problems, the utility model provides a device for measuring the temperature of an object being heated in an induction furnace, comprising:

[0005] A purge assembly, comprising a temperature measuring channel, the temperature measuring channel being connected to the interior of the induction furnace and aimed at the heated object in the induction furnace, and an inert gas being passed into the temperature measuring channel;

[0006] A sealed temperature-resistant component, which seals the proximal end of the temperature measurement channel;

[0007] A temperature measuring component is arranged opposite to the temperature measuring channel, and the temperature measuring component is arranged on a side of the sealed temperature-resistant component opposite to the side where the temperature measuring channel is arranged.

[0008] In one embodiment of the utility model, a temperature processing and display device is also included, and the temperature processing and display device is connected to the temperature measuring component through an optical fiber hose.

[0009] In one embodiment of the present invention, the sealed temperature-resistant component includes a coated quartz plate and sealing gaskets arranged on both sides of the coated quartz plate.

[0010] In one embodiment of the utility model, a mounting groove is provided at the distal end of the processing piece, and the sealing and temperature-resistant component is arranged in the mounting groove.

[0011] In one embodiment of the utility model, it also includes a transition plate provided with a first channel and a convex portion, the transition plate is fixedly connected to the workpiece, and the convex portion is inserted into the mounting groove and presses the sealing gasket, and the first channel is coaxially arranged with the temperature measurement channel.

[0012] In one embodiment of the utility model, it also includes a mounting plate provided with a second channel, the mounting plate is fixedly connected to the temperature measuring device, the mounting plate abuts against the transition plate, and the second channel is coaxially arranged with the temperature measuring channel.

[0013] In one embodiment of the utility model, it also includes a processing piece fixedly connected to the induction furnace body, the temperature measuring channel is arranged in the processing piece, and the processing piece is provided with an air inlet, and the air inlet is connected to the temperature measuring channel.

[0014] In one embodiment of the utility model, the temperature measurement component further includes a two-color thermometer, which includes a lens, an optical fiber, and a processing component, and the lens is configured as a manually adjustable focus lens.

[0015] In an embodiment of the present invention, the transition plate and the processing part are detachably connected.

[0016] In one embodiment of the present invention, the air inlet is configured as a tubular structure.

[0017] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0018] The utility model discloses a device for measuring the temperature of an object being heated in an induction furnace. The inert gas can purge away the impurity gas in the temperature measuring channel, and keep the temperature measuring channel clean, so that the temperature measuring component can stably and accurately detect the infrared light emitted by the heated object. The sealed temperature-resistant component can not only ensure the sealing and independence of the induction furnace, and improve the high temperature resistance of the temperature measuring component, but also can separate the temperature measuring component from the induction furnace, and facilitate the disassembly and maintenance of the temperature measuring component at any time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0020] Figure 1 It is a structural schematic diagram of a cross-sectional view of a temperature measuring device for an object being heated in an induction furnace in a preferred embodiment of the utility model.

[0021] Explanation of the reference numerals in the drawings in the specification: 1. workpiece; 2. transition plate; 3. mounting plate; 4. sealing gasket; 5. coated quartz plate; 6. far end; 7. near end; 11. temperature measurement channel; 12. air inlet; 13. mounting groove; 21. first channel; 31. second channel. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0023] Example

[0024] In one embodiment of the present invention, referring to Figure 1 As shown, the utility model is a device for measuring the temperature of an object being heated in an induction furnace, comprising:

[0025] A purge assembly includes a temperature measuring channel 11, the temperature measuring channel 11 is connected to the inside of the induction furnace and is aimed at the heated object in the induction furnace, so that the infrared light emitted by the heated object enters the temperature measuring channel 11, and an inert gas such as nitrogen and argon is introduced into the temperature measuring channel 11, so that the front of the temperature measuring channel 11 is filled with inert gas, the purpose is to exhaust the impurity gas in the temperature measuring channel 11 and keep the temperature measuring channel 11 clean, because the inert gas has good stability and high light transmittance, and can stably transmit the infrared light emitted by the measured object, so that the temperature measuring assembly can stably and accurately detect the infrared light emitted by the heated object, thereby improving the temperature measurement accuracy;

[0026] A sealed temperature-resistant component, which seals the proximal end 7 of the temperature measuring channel 11. The function of the sealed temperature-resistant component is, on the one hand, to maintain the sealing and independence of the induction furnace. On the other hand, the sealed temperature-resistant component separates the temperature measuring component from the induction furnace, which is convenient for disassembly, maintenance and maintenance of the temperature measuring component at any time, and also improves the high temperature resistance of the temperature measuring device. The proximal end 7 refers to the end away from the induction furnace, and the distal end 6 refers to the end close to the induction furnace;

[0027] The temperature measuring component is arranged opposite to the temperature measuring channel 11, and the temperature measuring component is arranged on the side of the sealed temperature-resistant component opposite to the temperature measuring channel 11, and the temperature measuring component is used to detect the infrared light emitted by the heated object in the induction furnace.

[0028] In one embodiment of the present invention, referring to Figure 1 As shown, it also includes a temperature processing and display device (not marked), which is connected to the temperature measuring component through an optical fiber hose. After the temperature measuring component detects infrared light, it transmits data to the temperature processing and display device. After the temperature processing and display device processes the data, it displays the temperature on the display.

[0029] In one embodiment of the present invention, referring to Figure 1As shown, the sealed temperature-resistant component includes a coated quartz plate 5 and sealing gaskets 4 arranged on both sides of the coated quartz plate 5. The sealing gaskets 4 are set to be made of fluororubber material and are used to seal the temperature measurement channel. The coated quartz plate 5 can improve the optical properties of the quartz glass surface, such as transmittance, reflectivity or refractive index, and can also reduce the loss of infrared light passing through the quartz plate, so that the thermometer measures the temperature more accurately. At the same time, the coated quartz plate 5 also has sealing properties.

[0030] In one embodiment of the present invention, referring to Figure 1 As shown, in order to improve the stability of the sealing and heat-resistant component, the distal end 6 of the workpiece 1 is provided with a mounting groove 13 , the mounting groove 13 is coaxially connected to the temperature measuring channel 11 , and the sealing and heat-resistant component is arranged in the mounting groove 13 .

[0031] In one embodiment of the present invention, referring to Figure 1 As shown, it also includes a transition plate 2 provided with a first channel 21 and a convex portion, and the convex portion matches the mounting groove 13, the transition plate 2 is fixedly connected to the workpiece 1 by screws, and the convex portion is inserted into the mounting groove 13 and presses and fixes the sealing gasket 4, the first channel 21 is coaxially arranged with the temperature measuring channel 11 to facilitate the passage of infrared light; the transition plate 2 is convenient for installing the workpiece 1 of the temperature measuring component, and if the temperature measuring component has an abnormality, it can be quickly disassembled for inspection or maintenance.

[0032] In one embodiment of the present invention, referring to Figure 1 As shown, it also includes a mounting plate 3 provided with a second channel 31, the mounting plate 3 is used to install the temperature measuring device, the mounting plate 3 is fixedly connected to the temperature measuring device, the mounting plate 3 abuts the transition plate 2 and the second channel 31 is coaxially arranged with the temperature measuring channel 11 to facilitate the passage of infrared light.

[0033] In one embodiment of the present invention, referring to Figure 1 As shown, it also includes a workpiece 1 for welding an induction furnace body, the temperature measuring channel 11 is arranged in the workpiece 1, and the workpiece 1 is provided with an air inlet 12, the air inlet 12 is connected to the temperature measuring channel 11, the air inlet 12 is arranged vertically to the temperature measuring channel 11 and the air inlet 12 is arranged close to the proximal end 7 of the workpiece 1, and the air inlet 12 is used to introduce inert gas into the temperature measuring channel 11.

[0034] In one embodiment of the present invention, referring to Figure 1 As shown, the temperature measurement component also includes a two-color thermometer, which includes a lens, an optical fiber, and a processing component. The lens is aimed at the temperature measurement channel 11, and the lens is set to a manually adjustable focus lens.

[0035] In one embodiment of the present invention, referring to Figure 1As shown, the transition plate 2 and the workpiece 1 can be detachably connected, so that the transition plate 2 can be easily disassembled to remove the sealing and temperature-resistant components for maintenance.

[0036] In one embodiment of the present invention, referring to Figure 1 As shown, the air inlet 12 is configured as a tubular structure in order to improve the air intake efficiency and increase the turbulence of the airflow, and also to guide the airflow and reduce noise.

[0037] The working principle of the temperature measuring device for the heated object in the induction furnace of the utility model is:

[0038] The workpiece 1 is welded to the furnace body of the induction furnace, and it is ensured that the temperature measuring channel 11 is aligned with the heated object inside the furnace body, and nitrogen is introduced into the air inlet 12, and the nitrogen exhausts the impurity gas in the temperature measuring channel 11. When the induction furnace heats the graphite, the graphite will heat the heated object, and the infrared light emitted by the heated object passes through the temperature measuring channel 11, the sealed temperature-resistant component, the first channel 21, and the second channel 31 to reach the thermometer, and the thermometer transmits the data to the temperature processing and display device, and the data is displayed on the display screen after being processed.

[0039] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A device for measuring the temperature of an object heated by an induction furnace, characterized in that: include, A purge assembly, comprising a temperature measuring channel, the temperature measuring channel being connected to the interior of the induction furnace and aimed at the heated object in the induction furnace, and an inert gas being passed into the temperature measuring channel; A sealed temperature-resistant component, which seals the proximal end of the temperature measurement channel; A temperature measuring component is arranged opposite to the temperature measuring channel, and the temperature measuring component is arranged on a side of the sealed temperature-resistant component opposite to the side where the temperature measuring channel is arranged.

2. The device for measuring the temperature of an object heated by an induction furnace according to claim 1, characterized in that: It also includes a temperature processing and display device, which is connected to the temperature measuring component through an optical fiber hose.

3. The device for measuring the temperature of an object heated by an induction furnace according to claim 1, characterized in that: The sealed temperature-resistant component comprises a coated quartz plate and sealing gaskets arranged on both sides of the coated quartz plate.

4. The device for measuring the temperature of an object heated by an induction furnace according to claim 3, characterized in that: A mounting groove is arranged at the far end of the workpiece, and the sealing and temperature-resistant component is arranged in the mounting groove.

5. The device for measuring the temperature of an object heated by an induction furnace according to claim 4, characterized in that: It also includes a transition plate provided with a first channel and a convex portion, wherein the transition plate is fixedly connected to the workpiece, and the convex portion is inserted into the mounting groove and presses the sealing gasket, and the first channel is coaxially arranged with the temperature measuring channel.

6. The device for measuring the temperature of an object heated by an induction furnace according to claim 5, characterized in that: It also includes a mounting plate provided with a second channel, the mounting plate is fixedly connected to the temperature measuring device, the mounting plate abuts against the transition plate, and the second channel is coaxially arranged with the temperature measuring channel.

7. The device for measuring the temperature of an object heated by an induction furnace according to claim 1, characterized in that: It also includes a processing piece fixedly connected to the induction furnace body, the temperature measuring channel is arranged in the processing piece, and the processing piece is provided with an air inlet, and the air inlet is connected to the temperature measuring channel.

8. The device for measuring the temperature of an object heated by an induction furnace according to claim 1, characterized in that: The temperature measurement component also includes a two-color temperature measuring instrument, which includes a lens, an optical fiber, and a processing component. The lens is configured as a manually adjustable focus lens.

9. The device for measuring the temperature of an object heated by an induction furnace according to claim 5, characterized in that: The transition plate and the processing member can be detachably connected.

10. The device for measuring the temperature of an object heated by an induction furnace according to claim 7, characterized in that: The air inlet is configured as a tubular structure.

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