High-temperature melt spectrum furnace
By designing the optical channel wall thickness of the fiber channel flange gradually decreases in the axial direction, the problem of heat leakage of fiber channel flange in the high-temperature melt spectroscopic furnace is solved, and the effect of slowing heat transfer and avoiding thermal stress deformation is achieved.
Patent Information
- Application Number
- CN202420934708.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In existing high-temperature melt spectroscopic furnaces, fiber channel flanges are prone to heat leakage under high temperature environments, causing high temperature melting of flanges and connection points, resulting in measurement errors and equipment damage.
A fiber channel flange is designed, and the wall thickness of the optical channel gradually decreases in the axial direction and the cross-sectional area gradually decreases, thereby slowing down heat transfer and avoiding thermal stress deformation caused by excessive temperature.
It effectively reduces thermal stress deformation at the fiber interface, avoids measurement errors and equipment damage, and reduces production costs and installation difficulties.
Smart Images
Figure CN222506137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-temperature melt spectrum furnaces, in particular to a high-temperature melt spectrum furnace. Background Art
[0002] In the measurement of high-temperature melts, fiber channel flanges are often used for fiber interface and furnace connection. However, when the fiber interface is exposed to a high-temperature melt environment, heat may leak out through the fiber channel flange, causing the flange and the connection point to melt at high temperature, resulting in measurement errors and equipment damage.
[0003] The existing technology uses water-cooled flanges to reduce the interface temperature. Since the water-cooled flange requires a water-cooled cavity to be reserved in the flange, this design not only leads to a larger flange size design, but also requires the sealing of the water-cooled cavity to be maintained during use, which puts extremely high requirements on sealing welding and leads to high production costs. In addition, this water-cooled flange also needs to be equipped with a liquid cooling pump, which undoubtedly increases the difficulty of installing the entire furnace. Furthermore, the rapid switching of the water-cooled channel flange between high and low temperatures will cause thermal stress, which may affect the stability and life of the flange. In severe cases, it will cause the connection plate to deform and the thread position of the connection plate to be misaligned. Utility Model Content
[0004] Since the prior art has the disadvantages of complex structure and thermal deformation when dealing with heat leakage at the optical fiber interface of a high-temperature melt spectroscopy furnace, it is necessary to provide a high-temperature melt spectroscopy furnace.
[0005] A high temperature melt spectroscopic furnace, comprising:
[0006] A spectral furnace body, the spectral furnace body having a melt cavity and at least one pair of mounting holes connected to the melt cavity, wherein the two mounting holes of each pair of the mounting holes are symmetrically arranged on the outer peripheral wall of the spectral furnace body; and
[0007] An optical fiber channel flange, the optical fiber channel flange includes a mounting plate fixedly connected to the outside of the spectrum furnace body and located at the mounting hole, and an optical channel extending from a side of the mounting plate close to the spectrum furnace body toward the melt chamber, the mounting plate is provided with an optical fiber interface connected to the optical channel, the optical channel is penetrated by the mounting hole, and the wall thickness of the optical channel gradually decreases in the axial direction close to the mounting plate.
[0008] With such an arrangement, the cross-sectional area of the optical channel gradually decreases. Since the heat transfer is related to the cross-sectional area of the heat transfer medium, the heat transfer in the furnace is slowed down, avoiding thermal stress deformation caused by excessive temperature at the installation port of the optical fiber channel flange, thereby avoiding measurement errors caused by displacement of the optical fiber connector due to thermal stress deformation and protecting the optical fiber connector.
[0009] In one of the embodiments, the wall thickness of the end of the light channel connected to the mounting plate is 1 mm to 8 mm, and the wall thickness of the end of the light channel away from the mounting plate is 1 mm to 10 mm.
[0010] Such an arrangement not only meets the needs of furnaces of different sizes, but also ensures the heat-insulating effect of the light channel.
[0011] In one of the embodiments, the outer diameter of the light channel gradually decreases in the axial direction approaching the mounting plate, and the inner diameter of the light channel remains unchanged in the axial direction.
[0012] With this arrangement, only one end of the light channel close to the melt chamber abuts against the furnace, which reduces the heat transfer area between the furnace and the light channel, thereby reducing heat transfer and preventing the light channel from being crushed due to the reduction in the aperture of the mounting hole.
[0013] In one embodiment, the outer peripheral wall of the light channel is a curved surface.
[0014] Such an arrangement further reduces the heat transfer and slows down the deformation at the optical fiber interface.
[0015] In one embodiment, at least two pairs of the mounting holes are located at the same height, and the directions of the two pairs of mounting holes are perpendicular to each other.
[0016] This setting makes it convenient to conduct two different spectral tests at the same time, thereby saving test time and improving detection efficiency.
[0017] In one of the embodiments, the fiber channel flange is a ceramic component.
[0018] In this way, the optical fiber channel flange is customized by utilizing the heat-resistance characteristics of ceramics, thereby improving the heat insulation effect of the optical fiber channel flange.
[0019] In one of the embodiments, the optical channel is integrally connected to the mounting plate.
[0020] Such an arrangement ensures that the deformation of the mounting plate and the optical channel in the optical fiber channel flange at the connection point remains consistent, which helps to prevent the optical fiber channel flange from breaking at the connection point due to uneven temperature.
[0021] In one embodiment, at least one cutout groove is formed on the outer peripheral wall of the light channel.
[0022] Such an arrangement can effectively block the transfer of heat by reducing the local heat transfer area of the light channel.
[0023] In one embodiment, the spectral furnace body comprises a furnace shell having the mounting hole and a furnace chamber located in the furnace shell, the melt cavity is located in the furnace chamber, and a measuring channel connected to the melt cavity is opened on the peripheral wall of the furnace chamber;
[0024] The furnace chamber and the furnace shell are spaced apart to form a heat-insulating cavity in the furnace shell, the heat-insulating cavity is connected to the mounting hole and the measuring channel, and the cutout groove is located on a side of the measuring channel close to the heat-insulating cavity, and one end of the optical channel away from the mounting plate abuts against a side wall of the furnace chamber located in the measuring channel.
[0025] With such an arrangement, a temperature fault can be formed at the mouth of the measuring channel, thereby reducing the heat transfer from the furnace to the optical fiber channel flange as much as possible.
[0026] In one of the embodiments, the light channel has an abutment surface surrounding an end of the light channel away from the mounting plate, and the abutment surface is parallel to the axis of the light channel.
[0027] Such an arrangement can effectively reduce heat leakage at the measuring channel, thereby improving the thermal insulation effect of the furnace.
[0028] In one embodiment, the light channel is recessed inward from the abutting surface to form a plurality of circles of heat-insulating grooves.
[0029] Such an arrangement not only ensures the heat preservation effect of the furnace, but also reduces the heat transferred from the furnace to the light channel. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 A schematic diagram of the structure of a high-temperature melt spectroscopic furnace in an embodiment provided in the present application;
[0031] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0032] Figure 3 for Figure 1 A schematic diagram of the structure of the fiber channel flange;
[0033] Figure 4 A schematic structural diagram of a fiber channel flange in another embodiment provided in the present application;
[0034] Figure 5 A schematic structural diagram of a fiber channel flange in another embodiment provided in the present application;
[0035] Figure 6 A schematic structural diagram of a fiber channel flange in another embodiment provided in the present application;
[0036] Figure 7A schematic structural diagram of a high-temperature melt spectroscopy furnace in another embodiment provided in the present application.
[0037] Reference numerals:
[0038] 10. Spectral furnace body; 11. Furnace shell; 111. Mounting hole; 112. Socket; 12. Furnace chamber; 121. Melt chamber; 122. Measuring channel; 123. Socket; 13. Insulation layer; 131. Matching channel; 14. Insulation chamber; 20. Fiber channel flange; 21. Mounting plate; 211. Fiber interface; 22. Optical channel; 221. Notch groove; 222. Abutment surface; 223. Insulation groove; 30. Quartz cuvette; 40. Thermocouple. DETAILED DESCRIPTION
[0039] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0045] In the measurement of high-temperature melts, fiber channel flanges are often used for fiber interface and furnace connection. However, when the fiber interface is exposed to a high-temperature melt environment, heat may leak out through the fiber channel flange, causing the flange and the connection point to melt at high temperature, resulting in measurement errors and equipment damage.
[0046] The existing technology uses water-cooling flanges to reduce the interface temperature. A water-cooling cavity and a water inlet and a water outlet connected to the water-cooling cavity are preset inside the water-cooling flange. The water inlet and the water outlet are respectively connected to an external cold water pump through a water guide pipe. Under the pumping of the cold water pump, cold water enters the water-cooling cavity from the water inlet, circulates around the water-cooling cavity inside the water-cooling flange, and then returns to the cold water pump, thereby taking out the heat at the water-cooling flange.
[0047] Since the water-cooling flange needs to reserve a water-cooling cavity in the flange, this design not only leads to a larger size design of the flange, but also needs to maintain the sealing of the water-cooling cavity during use, which puts extremely high requirements on sealing welding and leads to production costs. In addition, this water-cooling flange also needs to be equipped with a liquid cooling pump, which undoubtedly increases the difficulty of installing the entire furnace. Furthermore, the rapid switching of the water-cooling channel flange between high temperature and low temperature will cause thermal stress, which may affect the stability and life of the flange, and seriously cause the connecting plate to deform and cause the thread position of the connecting plate to be misaligned.
[0048] Based on this, it is necessary to provide a high-temperature melt spectroscopic furnace that can reduce heat leakage of the furnace and is easy to assemble.
[0049] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a high-temperature melt spectroscopic furnace in an embodiment provided in the present application. Figure 2 for Figure 1 A partial enlarged view of point A in the middle.
[0050] The high-temperature melt spectroscopy furnace provided in the present application includes a spectroscopy furnace body 10 and an optical fiber channel flange 20 installed on the spectroscopy furnace body 10 .
[0051] Specifically, the spectral furnace body 10 includes a furnace shell 11 and a furnace chamber 12 disposed in the furnace shell 11, the furnace shell 11 is provided with at least one pair of mounting holes 111 arranged symmetrically with respect to the center, a melt cavity 121 is provided in the furnace chamber 12, and the high-temperature melt spectral furnace further includes a heat-insulating cavity 14 located between the furnace shell 11 and the furnace chamber 12 and surrounding the furnace chamber 12, and the furnace chamber 12 is provided with two measuring channels 122 corresponding to the mounting holes 111, and the measuring channels 122 are connected with the melt cavity 121 and the heat-insulating cavity 14; The optical fiber channel flange 20 includes a mounting plate 21 fixedly connected to the outside of the furnace shell 11 and located at the mounting hole 111, and an optical channel 22 extending from the side of the mounting plate 21 close to the furnace shell 11 toward the measuring channel 122. The mounting plate 21 is provided with an optical fiber interface 211 connected to the optical channel 22. The optical channel 22 is penetrated through the mounting hole 111 and inserted into the measuring channel 122. One end of the optical channel 22 away from the mounting plate 21 abuts against the side wall of the measuring channel 122 of the furnace 12. It is worth noting that in the present application, the optical channel 22 is a connecting pipe with a certain wall thickness, and the connecting pipe has openings at both ends, one of which is connected to the optical fiber interface 211.
[0052] Optional, see Figure 7 , Figure 7A schematic diagram of the structure of a high-temperature melt spectroscopic furnace in an embodiment provided in the present application. In an embodiment of the present application, the furnace shell 11 is provided with at least two pairs of mounting holes 111 located at the same height, and the two pairs of mounting holes 111 are oriented perpendicular to each other, so that it is convenient to conduct two different spectroscopic tests, thereby saving test time and improving detection efficiency. Specifically, in this embodiment, a thermocouple 40 is installed in one of the mounting holes 111 for directly measuring the temperature in the furnace cavity, and the remaining three mounting holes 111 are installed with optical fiber channel flanges 20, that is, three measurement points for optical fiber measurement and one measurement point for direct measurement are provided. It can be understood that in other embodiments, the four mounting holes 111 can also be installed with optical fiber channel flanges 20, that is, three measurement points for optical fiber measurement are provided.
[0053] In one embodiment of the present application, the spectral furnace body 10 includes a furnace shell 11, a furnace chamber 12 located in the furnace shell 11, and an insulation layer 13 located on the upper and lower sides of the furnace chamber 12. The insulation layer 13 is cut into a shape that matches the inner wall of the furnace shell 11 to prevent the furnace chamber 12 from shaking in the furnace shell 11.
[0054] Specifically, in the above embodiment, the furnace chamber 12 and the furnace shell 11 are spaced apart to form an insulating chamber 14, the furnace shell 11 is provided with two relatively arranged mounting holes 111 and a socket 112 located at the top, the furnace chamber 12 has a melt chamber 121, two measuring channels 122 connected to the melt chamber 121 and a socket 123 connected to the melt chamber 121, the measuring channel 122 passes through the chamber wall of the furnace chamber 12 to connect the insulating chamber 14 and the melt chamber 121, the measuring channel 122 is also arranged corresponding to the mounting hole 111 for installing the optical fiber channel flange 20; the insulation layer 13 located above the furnace shell 11 is provided with a matching channel 131 corresponding to the socket 112 and the socket 123 to facilitate the insertion of the quartz cuvette 30 tube.
[0055] For details, please refer to Figure 3 , Figure 2 for Figure 1 Schematic diagram of the structure of the optical fiber channel flange 20, the optical fiber channel flange 20 includes a mounting plate 21 and an optical channel 22 extending from one side of the mounting plate 21 in a direction away from the other side, the mounting plate 21 is fixedly connected to the furnace shell 11 and is provided with an optical fiber interface 211 connected to the optical channel 22, the optical channel 22 is penetrated through the mounting hole 111 of the furnace shell 11 and inserted into the measuring channel 122 to facilitate the optical fiber connector to enter the spectrum furnace body 10 from the optical fiber interface 211, and the optical fiber interface 211 and the optical fiber connector are provided with mutually matching threads.
[0056] During actual assembly, the cut insulation layer 13 is placed into the furnace shell 11, and then into the furnace chamber 12, and the height of the furnace chamber 12 is adjusted so that the measuring channel 122 of the furnace chamber 12 corresponds to the mounting hole 111 installed on the furnace shell 11, and then the optical fiber channel flange 20 is inserted into the mounting hole 111, and the concentricity of the two optical fiber channel flanges 20 is kept consistent, and finally the two optical fiber channel flanges 20 are fixed to the furnace shell 11 with bolts.
[0057] The temperature measurement process is as follows: before the equipment starts operating, the optical fiber connector is first inserted into the optical fiber interface 211 of the optical fiber channel flange 20 and tightened. When the temperature of the equipment reaches 900°C, the optical fiber switch is turned on. The light beam is absorbed by the square cuvette at the bottom of the quartz cuvette 30 tube, refracted, and received by the optical fiber interface 211 at the other end, and the measurement data is made by professional equipment.
[0058] In order to solve the problem of heat leakage at the optical fiber interface 211, the wall thickness of the optical channel 22 of the optical fiber channel flange 20 is designed to gradually decrease in the axial direction close to the mounting plate 21. Since the transfer of heat is related to the cross-sectional area of the heat transfer medium, the cross-sectional area of the optical channel 22 is gradually reduced after such a setting, thereby slowing down the heat transfer in the furnace 12, avoiding the thermal stress deformation caused by the excessive temperature at the mounting port of the optical fiber channel flange 20, thereby avoiding the measurement error caused by the displacement of the optical fiber joint due to the thermal stress deformation, and protecting the optical fiber joint. After actual measurement, when the high-temperature melt spectrum furnace provided by the present application is in use, when the temperature in the furnace 12 rises to 900°C, the temperature of the optical fiber channel flange 20 close to the melt cavity 121 is 600°C, and the temperature at the optical fiber interface 211 of the optical fiber channel flange 20 is only 80°C to 120°C, which effectively reduces the thermal stress deformation at the optical fiber interface 211.
[0059] Optionally, in an embodiment provided in the present application, the wall thickness Y of one end of the light channel 22 connected to the mounting plate 21 is 1 mm to 8 mm, and the wall thickness X of the end of the light channel 22 away from the mounting plate 21 is 1 mm to 10 mm, and the specific wall thickness is adjusted accordingly with the size of the container.
[0060] Optionally, in the above embodiment, the outer diameter of the light channel 22 gradually decreases in the direction close to the mounting plate 21, and the inner diameter of the light channel 22 remains unchanged. After such arrangement, only one end of the light channel 22 close to the melt cavity 121 abuts against the furnace 12, thereby reducing the heat transfer area between the furnace 12 and the light channel 22, thereby reducing heat transfer; in addition, since such an optical fiber channel flange 20 is usually an integrated structure, the optical fiber channel flange 20 needs to be inserted into the mounting hole 111 during actual installation, so the aperture of the mounting hole 111 must be larger than the end of the optical channel 22 close to the mounting plate 21, so that the thermal stress deformation of the furnace shell 11 will not affect the optical channel 22, thereby preventing the optical channel 22 from being crushed due to the reduction in the aperture of the mounting hole 111.
[0061] Optional, see Figure 4 , Figure 4 A schematic diagram of the structure of the optical fiber channel flange 20 in another embodiment provided in the present application, in another embodiment of the present application, the outer peripheral wall of the optical channel 22 is a curved surface, which further reduces the heat transfer and slows down the deformation at the optical fiber interface 211.
[0062] Optionally, in an embodiment provided in the present application, the optical fiber channel flange 20 is a ceramic component, and the optical fiber channel flange 20 is customized by utilizing the heat-resistance characteristics of ceramics, thereby improving the heat insulation effect of the optical fiber channel flange 20 .
[0063] Optionally, in an embodiment provided in the present application, the optical channel 22 of the optical fiber channel flange 20 is integrally connected to the mounting plate 21, thereby ensuring that the deformation of the mounting plate 21 and the optical channel 22 in the optical fiber channel flange 20 at the connection point remains consistent, which helps to avoid the optical fiber channel flange 20 from breaking at the connection point due to uneven temperature.
[0064] Optional, see Figure 5 , Figure 5 A schematic diagram of the structure of the optical fiber channel flange 20 in another embodiment provided in the present application, in which the outer peripheral wall of the optical channel 22 is provided with at least one annular cutout groove 221, which can effectively block the transfer of heat by reducing the local heat transfer area of the optical channel 22.
[0065] Furthermore, in the above embodiment, the annular cutout groove 221 is located on the side of the measuring channel 122 close to the insulation cavity 14, so that a temperature fault can be formed at the mouth of the measuring channel 122, thereby minimizing the heat transfer from the furnace 12 to the optical fiber channel flange 20.
[0066] For further information, see Figure 6 , Figure 6This is a structural schematic diagram of the optical fiber channel flange 20 in another embodiment of the present application. In this embodiment, the optical channel 22 has an abutment surface 222 surrounding one end of the optical channel 22 away from the mounting plate 21, and the abutment surface 222 is parallel to the axis of the optical channel 22. This can effectively reduce heat leakage at the measuring channel 122, thereby improving the insulation effect of the furnace 12.
[0067] Furthermore, in the above embodiment, the light channel 22 is recessed inward from the abutment surface 222 to form a plurality of circles of heat insulation grooves 223, which reduces the area of the abutment surface 222, thereby ensuring the heat preservation effect of the furnace 12 and reducing the heat transferred from the furnace 12 to the light channel 22.
[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0069] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A high temperature melt spectrometer furnace, characterized in that: include: A spectrum furnace body (10), the spectrum furnace body (10) comprising a melt cavity (121) and at least one pair of mounting holes (111) connected to the melt cavity (121), the two mounting holes (111) of each pair of mounting holes (111) being symmetrically arranged on the outer peripheral wall of the spectrum furnace body (10); and An optical fiber channel flange (20), the optical fiber channel flange (20) comprising a mounting plate (21) fixedly connected to the outside of the spectrum furnace body (10) and located at the mounting hole (111), and an optical channel (22) extending from a side of the mounting plate (21) close to the spectrum furnace body (10) toward the melt chamber (121), the mounting plate (21) being provided with an optical fiber interface (211) connected to the optical channel (22), the optical channel (22) being passed through the mounting hole (111), and the wall thickness of the optical channel (22) gradually decreasing in an axial direction approaching the mounting plate (21).
2. A high temperature melt spectroscopic furnace according to claim 1, characterized in that: The wall thickness of the end of the light channel (22) connected to the mounting plate (21) is 1 mm to 8 mm, and the wall thickness of the end of the light channel (22) away from the mounting plate (21) is 1 mm to 10 mm.
3. A high temperature melt spectroscopic furnace according to claim 2, characterized in that: The outer diameter of the light channel (22) gradually decreases in the axial direction approaching the mounting plate (21), and the inner diameter of the light channel (22) remains unchanged in the axial direction.
4. A high temperature melt spectroscopic furnace according to claim 2, characterized in that: The outer peripheral wall of the light channel (22) is a curved surface.
5. A high temperature melt spectroscopic furnace according to claim 1, characterized in that: At least two pairs of the mounting holes (111) are located at the same height, and the directions of the two pairs of the mounting holes (111) are perpendicular to each other.
6. A high temperature melt spectroscopic furnace according to claim 1, characterized in that: The optical fiber channel flange (20) is a ceramic component.
7. The high temperature melt spectroscopic furnace according to claim 1, characterized in that: The optical channel (22) is integrally connected to the mounting plate (21).
8. A high temperature melt spectroscopic furnace according to any one of claims 1 to 7, characterized in that: The outer peripheral wall of the light channel (22) is provided with at least one cutout groove (221).
9. A high temperature melt spectroscopic furnace according to claim 8, characterized in that: The spectral furnace body (10) comprises a furnace shell (11) having the mounting hole (111) and a furnace chamber (12) located in the furnace shell (11); the melt chamber (121) is located in the furnace chamber (12); and a measuring channel (122) communicating with the melt chamber (121) is provided on a peripheral wall of the furnace chamber (12); The furnace chamber (12) and the furnace shell (11) are arranged at intervals to form a heat-insulating cavity (14) in the furnace shell (11); the heat-insulating cavity (14) is connected to the mounting hole (111) and the measuring channel (122); the cutout groove (221) is located on a side of the measuring channel (122) close to the heat-insulating cavity (14); and one end of the light channel (22) away from the mounting plate (21) abuts against a side wall of the furnace chamber (12) located in the measuring channel (122).
10. A high temperature melt spectroscopic furnace according to claim 9, characterized in that: The light channel (22) has an abutment surface (222) surrounding an end of the light channel (22) away from the mounting plate (21), and the abutment surface (222) is parallel to the axis of the light channel (22).
11. A high temperature melt spectroscopic furnace according to claim 10, characterized in that: The light channel (22) is recessed inward from the abutting surface (222) to form a plurality of circles of heat-insulating grooves (223).