Splicing type combined heat preservation ring for single crystal furnace

Through the spliced-type design of a single crystal furnace combined insulation ring, the problems of high maintenance costs and short service life of the traditional integrated insulation cylinder are solved, and convenient replacement and efficient insulation are achieved, reducing production costs and extending service life.

CN223292709UActive Publication Date: 2025-09-02SHAANXI MEILAND NEW MATERIALS CO LTD +1
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Patent Information

Application Number
CN202422623999.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-09-02
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

During use, traditional monolithic insulation cylinders have problems such as high maintenance costs, long replacement time and short service life. They are especially susceptible to silicon steam corrosion at high temperatures, resulting in reduced performance.

Method used

The combined insulation ring for single crystal furnaces with spliced ​​design includes external insulation parts and internal insulation parts. It is connected by connecting components. When damaged, only the cylinder plate of the damaged part needs to be replaced. The outer insulation cylinder plate and the inner insulation cylinder plate can be replaced independently, and a soft felt layer is provided between the inner and outer insulation cylinder plates to improve the insulation effect.

Benefits of technology

It reduces production costs, simplifies maintenance processes, extends service life, improves thermal insulation, and reduces the impact of silicon steam corrosion.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to a splicing type combined thermal insulation ring for a single crystal furnace, which relates to the technical field of thermal fields of single crystal furnaces and comprises an outer thermal insulation part, an inner thermal insulation part and a connecting assembly, the external thermal insulation part comprises a plurality of external thermal insulation cylinder plates, the multiple external thermal insulation cylinder plates are arranged in the circumferential direction of the virtual circle, every two adjacent external thermal insulation cylinder plates are spliced to form the external thermal insulation part, and the multiple external thermal insulation parts are distributed in the circumferential direction of the virtual circle; the inner heat preservation part comprises a plurality of inner heat preservation cylinder plates, the multiple inner heat preservation cylinder plates are arranged in the circumferential direction of the virtual circle, every two adjacent inner heat preservation cylinder plates are spliced to form the inner heat preservation part, the multiple inner heat preservation parts are distributed in the circumferential direction of the virtual circle to form a heat preservation area, and the virtual circle is located in the heat preservation area; the inner heat preservation part and the outer heat preservation part are connected through a connecting assembly. The device has the effects that the cost can be reduced, and parts are convenient to replace.
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Description

Technical Field

[0001] The present application relates to the technical field of thermal field of single crystal furnaces, and in particular to a spliced ​​combined insulation ring for single crystal furnaces. Background Art

[0002] In the photovoltaic manufacturing industry, thermal insulation technology, as a key component in improving the efficiency and quality of photovoltaic cells, has garnered widespread attention. Traditionally, thermal insulation technology primarily maintains temperature stability in the photovoltaic thermal field, thereby ensuring the quality and yield of silicon materials during production. With the continuous development of the market and technological advancements, the application scope of thermal insulation technology has gradually expanded. Reducing costs, increasing service life, and enhancing functional diversity have become key research and development directions in this field.

[0003] In the market, the insulation cylinder usually adopts an integral design. This type of insulation cylinder is composed of an inner cylinder and an outer cylinder, both of which adopt an integral structure. In addition, a combined insulation cylinder has appeared on the market. This technology integrates the insulation cylinder with the oxygen reduction ring function to make the equipment have better thermal insulation effect. Specifically, the integral insulation cylinder commonly seen on the market adopts an integral outer cylinder and inner cylinder, while the combined insulation cylinder integrates the insulation cylinder and the oxygen reduction ring function into one, in order to achieve better insulation effect.

[0004] Regarding the above-mentioned related technologies, although the integral and combined insulation cylinders perform well in terms of insulation effect, they also have significant shortcomings. Since the outer cylinder and the inner cylinder of the traditional integral insulation cylinder are both integral structures, once a part is damaged during use, it needs to be replaced as a whole, which not only increases maintenance costs, but also takes a long time to replace. The more serious problem is that the outer cylinder of the integral structure insulation cylinder will be corroded by silicon vapor under high temperature for a long time, which will cause the performance of the insulation cylinder to deteriorate and shorten its service life. Therefore, finding an insulation cylinder that can reduce costs and facilitate the replacement of parts has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] In order to reduce costs and facilitate replacement of parts, the present application provides a spliced ​​combined insulation ring for a single crystal furnace.

[0006] The present application provides a spliced ​​combined insulation ring for a single crystal furnace, which adopts the following technical solution:

[0007] A spliced ​​combined insulation ring for a single crystal furnace, comprising an outer insulation component, an inner insulation component and a connecting assembly;

[0008] The outer thermal insulation member includes a plurality of outer thermal insulation cylinder plates, a plurality of the outer thermal insulation cylinder plates are provided along the circumference of the virtual circle, two adjacent outer thermal insulation cylinder plates are spliced ​​together to form the outer thermal insulation member, and the plurality of the outer thermal insulation members are distributed along the circumference of the virtual circle;

[0009] The inner thermal insulation member includes a plurality of inner thermal insulation cylinder plates, wherein a plurality of the inner thermal insulation cylinder plates are provided along the circumference of the virtual circle, and two adjacent inner thermal insulation cylinder plates are spliced ​​together to form the inner thermal insulation member, and the plurality of inner thermal insulation members are distributed along the circumference of the virtual circle to form a thermal insulation zone, and the virtual circle is located within the thermal insulation zone;

[0010] The inner thermal insulation component and the outer thermal insulation component are connected via the connecting assembly.

[0011] By adopting the above technical solution, when the single crystal growth furnace needs to be insulated, the single crystal growth furnace is placed in the insulation zone, and the single crystal growth furnace is insulated by the inner insulation tube plate and the outer insulation tube plate. During the use of the single crystal growth furnace, the silicon vapor, metal and other impurity gases generated in the furnace will usually contact and react with the inner insulation tube plate or the outer insulation tube plate, further causing the surface of the inner insulation tube plate or the outer insulation tube plate to be consumed and fall off. For this reason, multiple inner insulation tube plates are spliced ​​to form an inner insulation part, and multiple outer insulation tube plates are spliced ​​to form an outer insulation part. If damage occurs, it is only necessary to replace the outer insulation tube plate or the inner insulation tube plate of the damaged part, without replacing the entire inner insulation part or the outer insulation part, thereby reducing production costs.

[0012] Optionally, the connecting assembly includes a first connecting member and a second connecting member, the first connecting member is provided at one end of the outer insulation tube plate, the second connecting member is provided at the other end of the outer insulation tube plate, the first connecting member is provided with a first mounting groove on a side close to the outer insulation tube plate, the second connecting member is provided with a second mounting groove on a side close to the outer insulation tube plate, one end of the outer insulation tube plate is inserted into the first mounting groove, and the other end is inserted into the second mounting groove.

[0013] By adopting the above technical solution, in order to fix multiple outer insulation tube panels, a first connecting member and a second connecting member are set, one end of the outer insulation tube panel is inserted into the first installation groove, and the other end is inserted into the second installation groove, and the multiple outer insulation tube panels are fixed by the first connecting member and the second connecting member.

[0014] Optionally, one end of the inner thermal insulation tube plate is inserted into the first installation groove, and the other end is inserted into the second installation groove.

[0015] By adopting the above technical solution, in order to fix multiple inner insulation tube plates, one end of the inner insulation tube plate is inserted into the first installation groove, and the other end is inserted into the second installation groove, and the multiple inner insulation tube plates are fixed by the first connecting member and the second connecting member.

[0016] Optionally, the first connecting member is connected to the inner heat-insulating cylinder plate via a first locking member, and the first connecting member is connected to the outer heat-insulating cylinder plate via a second locking member.

[0017] By adopting the above technical solution, in order to improve the connection stability between multiple inner insulation tube plates and the first connecting member or the second connecting member, the first locking member is connected to the inner insulation tube plate at the end of the first connecting member to ensure that the multiple inner insulation tube plates will not move in the first mounting groove and the second mounting groove, and the second locking member is connected to the outer insulation tube plate at the end of the second connecting member to ensure that the multiple outer insulation tube plates will not move in the second mounting groove and the first mounting groove, thereby improving the stability of the installation.

[0018] Optionally, a soft felt layer is provided between the inner heat-insulating tube plate and the outer heat-insulating tube plate.

[0019] By adopting the above technical solution, in order to further improve the thermal insulation effect, a soft felt layer is provided between the inner thermal insulation tube plate and the outer thermal insulation tube plate, so that the soft felt layer can improve the thermal insulation effect of the single crystal growth furnace and reduce energy consumption.

[0020] Optionally, a baffle is further included, which is located on the side walls of the inner insulation tube plate and the outer insulation tube plate at the end of the first connecting member, and one end of the baffle is inserted into the first installation groove, and the other end is inserted into the second installation groove.

[0021] By adopting the above technical solution, in order to fix the inner insulation tube plate, the soft felt layer and the outer insulation tube plate, a baffle is set, and the baffle is arranged on the side walls of the inner insulation tube plate and the outer insulation tube plate, so that the inner insulation tube plate, the soft felt layer and the outer insulation tube plate are protected and fixed by the baffle.

[0022] Optionally, a first plug-in block is fixedly connected to one side of the outer thermal insulation cylinder plate, and a first plug-in slot is opened on the other side, and the first plug-in block of one outer thermal insulation cylinder plate is plugged into the first plug-in slot of the adjacent outer thermal insulation cylinder plate.

[0023] By adopting the above technical solution, in order to further improve the stability of the connection between multiple outer insulation tube panels, a first plug-in block is connected to one side of the outer insulation tube panel, and a first plug-in slot is opened at the other end. The adjacent two outer insulation tube panels are connected through the first plug-in block and the first plug-in slot to achieve stable connection of multiple outer insulation tube panels.

[0024] Optionally, the outer heat-insulating cylinder plate is provided with the first plug-in slot extending through the outer heat-insulating cylinder plate in an axial direction parallel to the virtual circle, and the first plug-in block can slide along the wall of the first plug-in slot in the first plug-in slot.

[0025] By adopting the above technical solution, a first plug-in groove is opened through the outer insulation tube plate along the axis direction parallel to the virtual circle, which improves the connection stability of two adjacent outer insulation tube plates and also improves the convenience of installation.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. This application provides multiple spliced ​​inner and outer insulation tube plates. If silicon vapor, metal, and other impurity gases generated in the furnace typically come into contact with and react with the inner or outer insulation tube plates, causing the inner or outer insulation tube plates to be consumed or fall off, only the outer or inner insulation tube plates at the damaged locations need to be replaced, without having to replace the entire inner or outer insulation member, thereby reducing production costs.

[0028] 2. The present application can further improve the stability of the connection and the convenience of installation of multiple outer insulation tube panels by providing a first plug-in slot and a first plug-in block. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a spliced ​​combined insulation ring for a single crystal furnace in the present application;

[0030] Figure 2 It is a schematic diagram of the structure of the connection components of this application;

[0031] Figure 3 This is a schematic diagram of the structure of the connection between multiple outer insulation tube panels and inner insulation tube panels of the present application;

[0032] Figure 4 This application Figure 3 Enlarged view of part A.

[0033] Explanation of the accompanying drawings: 1. External insulation component; 11. External insulation tube plate; 12. Second locking component; 13. First plug-in block; 14. First plug-in slot; 2. Internal insulation component; 21. Internal insulation tube plate; 22. Insulation area; 23. First locking component; 24. Second plug-in slot; 25. Second plug-in block; 3. Connecting assembly; 31. First connecting component; 311. First mounting slot; 32. Second connecting component; 321. Second mounting slot; 4. Soft felt layer; 5. Baffle; 51. Third plug-in block. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiment of the present application discloses a spliced ​​combined insulation ring for a single crystal furnace. Figure 1, a spliced ​​combined insulation ring for a single crystal furnace includes an outer insulation part 1, an inner insulation part 2 and a connecting component 3, the outer insulation part 1 includes a plurality of outer insulation cylinder plates 11, and the outer insulation cylinder plates 11 are provided with a plurality of them along the circumference of the virtual circle, and two adjacent outer insulation cylinder plates 11 are spliced ​​to form the outer insulation part 1, and the plurality of outer insulation parts 1 are distributed along the circumference of the virtual circle, the inner insulation part 2 includes a plurality of inner insulation cylinder plates 21, and the inner insulation cylinder plates 21 are provided with a plurality of them along the circumference of the virtual circle, and two adjacent inner insulation cylinder plates 21 are spliced ​​to form the inner insulation part 2, and the plurality of inner insulation parts 2 are distributed along the circumference of the virtual circle to form an insulation zone 22, and the virtual circle is located in the insulation zone 22, and the inner insulation part 2 and the outer insulation part 1 are connected by a connecting component 3;

[0036] Reference Figure 1 In this embodiment, two outer insulation parts 1 are provided and two inner insulation parts 2 are provided. The outer insulation part 1 is in a semi-arc shape and the inner insulation part 2 is in a semi-arc shape. The two outer insulation parts 1 are connected by a heater foot plate. The single crystal furnace is placed in the insulation area 22, and the single crystal growth furnace is insulated by the inner insulation tube plate 21 and the outer insulation tube plate 11. During the use of the single crystal growth furnace, the silicon vapor, metal and other impurity gases generated in the furnace will usually contact and react with the inner insulation tube plate 21 or the outer insulation tube plate 11, further causing the surface of the inner insulation tube plate 21 or the outer insulation tube plate 11 to be consumed and fall off. If damage occurs, it is only necessary to replace the outer insulation tube plate 11 or the inner insulation tube plate 21 of the damaged part, without replacing the entire inner insulation part 2 or the outer insulation part 1, thereby reducing production costs.

[0037] Reference Figure 1 and Figure 2 The connecting component 3 includes a first connecting member 31 and a second connecting member 32. The first connecting member 31 is arranged at one end of the outer insulation tube plate 11, and the second connecting member 32 is arranged at the other end of the outer insulation tube plate 11. The first connecting member 31 is provided with a first mounting groove 311 on the side close to the outer insulation tube plate 11, and the second connecting member 32 is provided with a second mounting groove 321 on the side close to the outer insulation tube plate 11. One end of the outer insulation tube plate 11 is inserted into the first mounting groove 311, and the other end is inserted into the second mounting groove 321; multiple outer insulation tube plates 11 are fixed by the first connecting member 31 and the second connecting member 32.

[0038] Reference Figure 2 In order to fix multiple inner insulation tube plates 21, one end of the inner insulation tube plate 21 is inserted into the first installation groove 311 of the first connecting member 31, and the other end is inserted into the second installation groove 321 of the second connecting member 32, so that the multiple inner insulation tube plates 21 are fixed by the second connecting member 32 and the first connecting member 31.

[0039] Reference Figure 2In order to improve the stability of multiple inner insulation cylinder plates 21 in the first installation groove 311 and the second installation groove 321, the inner insulation cylinder plate 21 located at the end of the first connecting member 31 is connected to the first connecting member 31 or the second connecting member 32 through the first locking member 23; in this embodiment, the inner insulation cylinder plate 21 located at the end of the first connecting member 31 is fixedly connected to the first connecting member 31 through the first locking member 23. Specifically, the first locking member 23 is perpendicular to the central axis of the virtual circle, and the first locking member 23 passes through the side of the first connecting member 31 close to the central axis of the virtual circle and abuts against the inner insulation cylinder plate 21. The first locking member 23 is threadedly connected to the first connecting member 31.

[0040] Reference Figure 2 , and in order to improve the stability of multiple outer insulation tube plates 11 in the first installation groove 311 and the second installation groove 321, the outer insulation tube plate 11 at the end of the first connecting member 31 is connected to the first connecting member 31 or the second connecting member 32 through the second locking member 12; in this embodiment, the outer insulation tube plate 11 at the end of the first connecting member 31 is fixedly connected to the first connecting member 31 through the second locking member 12. Specifically, the second locking member 12 is perpendicular to the central axis of the virtual circle, and the second locking member 12 passes through the side of the first connecting member 31 away from the central axis of the virtual circle and abuts against the outer insulation tube plate 11, and the second locking member 12 is threadedly connected to the first connecting member 31.

[0041] Referring to the figures, in order to improve the thermal insulation effect, a soft felt layer 4 is sandwiched between the inner thermal insulation tube plate 21 and the outer thermal insulation tube plate 11.

[0042] Reference Figure 1 and Figure 2 In order to fix the inner insulation tube plate 21, the soft felt layer 4 and the outer insulation tube plate 11, the spliced ​​combined insulation ring for the single crystal furnace also includes a baffle 5, which is located on the side walls of the inner insulation tube plate 21 and the outer insulation tube plate 11 at the end of the first connecting piece 31, and one end of the baffle 5 is inserted into the first mounting groove 311, and the other end is inserted into the second mounting groove 321, so that the baffle 5 can fix the inner insulation tube plate 21, the soft felt layer 4 and the outer insulation tube plate 11.

[0043] Reference Figure 3 and Figure 4In order to further improve the stability of the connection between multiple outer insulation tube plates 11, a first plug-in block 13 is fixedly connected to one side of the outer insulation tube plate 11, and a first plug-in groove 14 is opened at the other end. The first plug-in block 13 of one outer insulation tube plate 11 is plugged into the first plug-in groove 14 of the adjacent outer insulation tube plate 11; by connecting the first plug-in block 13 to one side of the outer insulation tube plate 11 and opening the first plug-in groove 14 at the other end, the two adjacent outer insulation tube plates 11 are connected through the first plug-in block 13 and the first plug-in groove 14 to achieve a stable connection of multiple outer insulation tube plates 11. In this embodiment, the first plug-in groove 14 is a T-shaped slot, and the first plug-in block 13 is a T-shaped block.

[0044] Reference Figure 3 and Figure 4 In order to improve the convenience of installing two adjacent outer insulation tube plates 11, the outer insulation tube plate 11 is penetrated by a first plugging groove 14 along the axial direction parallel to the virtual circle, and the first plugging block 13 can slide along the groove wall of the first plugging groove 14 in the first plugging groove 14; during installation, first insert one end of an outer insulation tube plate 11 into the first installation groove 311, and then insert the first plugging block 13 of the other outer insulation tube plate 11 into the first plugging groove 14 of the first outer insulation tube plate 11, which improves the connection stability of the two adjacent outer insulation tube plates 11 while also improving the convenience of installation.

[0045] Reference Figure 3 and Figure 4 Similarly, in order to further improve the stability of the connection between multiple inner insulation tube plates 21, a second plug-in block 25 is fixedly connected to one side of the inner insulation tube plate 21, and a second plug-in groove 24 is opened at the other end. The second plug-in block 25 of one inner insulation tube plate 21 is plugged into the second plug-in groove 24 of the adjacent inner insulation tube plate 21; by connecting the second plug-in block 25 to one side of the inner insulation tube plate 21 and opening the second plug-in groove 24 at the other end, the two adjacent inner insulation tube plates 21 are connected through the second plug-in block 25 and the second plug-in groove 24 to achieve a stable connection of multiple inner insulation tube plates 21, the second plug-in block 25 is a T-shaped block, and the second plug-in groove 24 is a T-shaped groove.

[0046] Reference Figure 3 and Figure 4 In order to improve the convenience of installing two adjacent inner insulation tube plates 21, the inner insulation tube plate 21 is penetrated by a second plugging groove 24 along the axial direction parallel to the virtual circle, and the second plugging block 25 can slide along the groove wall of the second plugging groove 24 in the second plugging groove 24; during installation, first insert one end of an inner insulation tube plate 21 into the second installation groove 321, and then insert the second plugging block 25 of the other inner insulation tube plate 21 into the second plugging groove 24 of the first inner insulation tube plate 21, which improves the connection stability of the two adjacent inner insulation tube plates 21 while also improving the installation convenience of multiple inner insulation tube plates 21.

[0047] Reference Figure 3 In order to ensure the stability between the baffle 5 and the inner insulation tube plate 21 and the outer insulation tube plate 11, two third plug-in blocks 51 are fixedly connected to the side of the baffle 5 close to the outer insulation tube plate 11, one third plug-in block 51 is inserted into the first plug-in groove 14, and the other third plug-in block 51 is inserted into the second plug-in groove 24 to achieve the stability of the connection between the baffle 5 and the inner insulation tube plate 21 and the outer insulation tube plate 11. The third plug-in block 51 is a T-shaped block.

[0048] The implementation principle of the spliced ​​combined insulation ring for a single crystal furnace in the embodiment of the present application is as follows: when in use, one end of an inner insulation cylinder plate 21 is inserted into the first installation groove 311, and then multiple inner insulation cylinder plates 21 are connected by plugging and matching through the first plug groove 14 and the first plug block 13 to form an inner insulation member 2, and the inner insulation cylinder plate 21 at the end of the first connecting member 31 is fixed to the first connecting member 31 by the first locking member 23; an outer insulation cylinder plate 1 is inserted into the first installation groove 311, and then multiple inner insulation cylinder plates 21 are connected by plugging and matching through the first plug groove 14 and the first plug block 13 to form an inner insulation member 2. 1 is inserted into the first installation groove 311, and then multiple outer insulation cylinder plates 11 are connected by plugging and matching through the second plugging groove 24 and the second plugging block 25 to form an outer insulation member 1. The outer insulation cylinder plate 11 located at the end of the first connecting member 31 is fixed to the first connecting member 31 by the second locking member 12. Finally, the other ends of the inner insulation cylinder plate 21 and the outer insulation cylinder plate 11 are inserted into the second installation groove 321 of the second connecting member 32 to complete the installation and fixation.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A spliced ​​combined insulation ring for a single crystal furnace, characterized by: It comprises an outer thermal insulation component (1), an inner thermal insulation component (2) and a connecting component (3); The outer thermal insulation component (1) comprises a plurality of outer thermal insulation tube plates (11), a plurality of the outer thermal insulation tube plates (11) are provided along the circumference of a virtual circle, two adjacent outer thermal insulation tube plates (11) are spliced ​​together to form the outer thermal insulation component (1), and the plurality of the outer thermal insulation components (1) are distributed along the circumference of the virtual circle; The inner thermal insulation component (2) includes a plurality of inner thermal insulation tube plates (21), a plurality of the inner thermal insulation tube plates (21) are provided along the circumference of a virtual circle, two adjacent inner thermal insulation tube plates (21) are spliced ​​together to form the inner thermal insulation component (2), and the plurality of inner thermal insulation components (2) are distributed along the circumference of the virtual circle to form a thermal insulation zone (22), and the virtual circle is located within the thermal insulation zone (22); The inner thermal insulation component (2) and the outer thermal insulation component (1) are connected via the connecting assembly (3).

2. The spliced ​​combined insulation ring for a single crystal furnace according to claim 1, characterized in that: The connecting assembly (3) includes a first connecting member (31) and a second connecting member (32), wherein the first connecting member (31) is provided at one end of the outer heat-insulating tube plate (11), and the second connecting member (32) is provided at the other end of the outer heat-insulating tube plate (11), a first mounting groove (311) is provided on a side of the first connecting member (31) close to the outer heat-insulating tube plate (11), and a second mounting groove (321) is provided on a side of the second connecting member (32) close to the outer heat-insulating tube plate (11), and one end of the outer heat-insulating tube plate (11) is inserted into the first mounting groove (311), and the other end is inserted into the second mounting groove (321).

3. The spliced ​​combined insulation ring for a single crystal furnace according to claim 2, characterized in that: One end of the inner heat-insulating cylinder plate (21) is inserted into the first installation groove (311), and the other end is inserted into the second installation groove (321).

4. The spliced ​​combined insulation ring for a single crystal furnace according to claim 3, characterized in that: The first connecting member (31) is connected to the inner heat-insulating cylinder plate (21) via a first locking member (23), and the first connecting member (31) is connected to the outer heat-insulating cylinder plate (11) via a second locking member (12).

5. The spliced ​​combined insulation ring for a single crystal furnace according to claim 2, characterized in that: A soft felt layer (4) is provided between the inner heat-insulating tube plate (21) and the outer heat-insulating tube plate (11).

6. The spliced ​​combined insulation ring for a single crystal furnace according to claim 2, characterized in that: It also includes a baffle (5), which is located on the side walls of the inner heat-insulating cylinder plate (21) and the outer heat-insulating cylinder plate (11) at the end of the first connecting member (31), and one end of the baffle (5) is inserted into the first installation groove (311), and the other end is inserted into the second installation groove (321).

7. A spliced ​​combined insulation ring for a single crystal furnace according to any one of claims 1 to 6, characterized in that: One side of the outer heat-insulating cylinder plate (11) is fixedly connected with a first plug-in block (13), and the other side is provided with a first plug-in slot (14); the first plug-in block (13) of one outer heat-insulating cylinder plate (11) is plugged into the first plug-in slot (14) of the adjacent outer heat-insulating cylinder plate (11).

8. The spliced ​​combined insulation ring for a single crystal furnace according to claim 7, characterized in that: The outer heat-insulating cylinder plate (11) is provided with the first plug-in slot (14) extending through the outer heat-insulating cylinder plate (11) in an axial direction parallel to the virtual circle, and the first plug-in block (13) can slide along the slot wall of the first plug-in slot (14) in the first plug-in slot (14).