Flange type heat shield

Abstract

The utility model discloses a flange type heat shield in the technical field of heat shields, which comprises two groups of first flange plates, the two groups of first flange plates are abutted against each other, an inner ring is integrally formed on the side surface of one group of first flange plates far away from the other group of first flange plates, and the side surface of each first flange plate is abutted against a spacer ring sleeved on the outer ring of the inner ring. The outer ring of the spacer ring is sleeved with an outer ring with one end abutting against the surface of the first flange plate. The inner ring, the spacer ring and the outer ring are fixedly connected through a plurality of groups of long bolts arranged in order, the ends, away from the first flange plates, of the inner ring, the spacer ring and the outer ring are connected with second flange plates in an abutting mode, and a plurality of groups of fixing assemblies for locking the second flange plates penetrate through the two groups of first flange plates; according to the heat insulation screen, the problems that an existing heat insulation screen is generally formed by assembling multiple sets of components, the overall assembly difficulty of the heat insulation screen is difficult, and actual rapid operation is not facilitated are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation screens, in particular to a flange type heat insulation screen. Background Art

[0002] The heat shield is an important thermal field structure of the single crystal furnace, and the demand is very large. It is made of carbon fiber and prepared by chemical vapor deposition (CVD). However, with the development of single crystal furnaces towards large-scale and continuous crystal pulling technology (single crystal pulling time is greater than 240 hours), new and higher requirements are put forward for the performance of the heat shield and its preparation technology.

[0003] The existing heat insulation screen is usually assembled from multiple groups of components. The overall assembly of the heat insulation screen is difficult, which is not conducive to practical quick operation. Therefore, those skilled in the art provide a flange-type heat insulation screen to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a flange type heat insulation screen to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange-type heat insulation screen, comprising two groups of first flange plates, the two groups of first flange plates are abutted against each other, one group of first flange plates is formed with an inner ring on the side away from the other group of first flange plates, the side of the first flange plate is abutted against a spacer ring sleeved on the outer ring of the inner ring, and the outer ring of the spacer ring is sleeved with an outer ring with one end abutting against the surface of the first flange plate;

[0006] The inner ring, the spacer ring and the outer ring are fixedly connected by a plurality of groups of arranged long bolts, and the ends of the inner ring, the spacer ring and the outer ring away from the first flange plate are abutted against the second flange plate, and the interiors of the two groups of first flange plates are penetrated by a plurality of groups of fixing components for locking the second flange plates;

[0007] The fixing assembly includes a plurality of connecting rods slidingly passing through two groups of first flange plates and second flange plates, one end of the connecting rod is fixedly installed with a fixing end in contact with the surface of one group of second flange plates, and the other end of the connecting rod is threadedly connected with an assembly and disassembly end in contact with the surface of another group of second flange plates.

[0008] Preferably: the outer ring of the inner ring is integrally formed with multiple sets of first support tubes abutting the inner ring of the spacer ring, the outer ring of the spacer ring is integrally formed with multiple sets of second support tubes abutting the inner ring of the outer ring, and the long bolt passes through the first support tube and the second support tube.

[0009] Preferably, a first limiting ring is integrally formed on one side of the second flange plate that is in contact with the inner ring, the spacer ring and the outer ring, and the outer ring of the first limiting ring is in contact with the inner wall of the inner ring.

[0010] Preferably, a second limiting ring is fixedly mounted on one side of the first flange plate connected to the inner ring, and the inner ring of the second limiting ring fits the surface of the outer ring.

[0011] Preferably, the inner ring is mainly made of stainless steel, the spacer ring is mainly made of ceramic material, and the outer ring is mainly made of thin molybdenum plate material.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the heat shield is split into two sections and assembled by flange connection, which can facilitate the assembly of heat shield components of larger size, and the small size of the components is convenient for production and transportation. The sliding spliced ​​inner ring, the spacer ring and the outer ring are fastened by long bolts, and then the two sets of integral heat shields are fixed by fixing components. The overall assembly structure of the device is simple and easy to operate.

[0014] 2. In the utility model, by providing the first support tube and the second support tube, the tightness of the installation between the inner ring, the spacer ring and the outer ring can be improved, thereby improving the overall strength of the heat insulation screen. By providing the first limiting ring, the sealing of the connection between the second flange plate and the inner ring, the spacer ring and the outer ring can be improved, and the lateral support strength of the second flange plate after installation can be improved. By providing the second limiting ring, the lateral support strength of the connection between the outer ring and the first flange plate can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a first cross-sectional view of the overall structure of the utility model;

[0017] Figure 3 It is a second cross-sectional view of the overall structure of the utility model.

[0018] In the figure: 1. first flange plate; 2. inner ring; 3. spacer ring; 4. outer ring; 5. long bolt; 6. second flange plate; 7. first support tube; 8. second support tube; 9. first limiting ring; 10. second limiting ring; 11. connecting rod; 12. fixed end; 13. assembly and disassembly end. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 to Figure 3 In an embodiment of the utility model, a flange-type heat insulation screen comprises two groups of first flange plates 1, the two groups of first flange plates 1 are abutted against each other, one group of first flange plates 1 is integrally formed with an inner ring 2 on the side away from the other group of first flange plates 1, the side of the first flange plate 1 is abutted with a spacer ring 3 sleeved on the outer ring of the inner ring 2, the outer ring of the spacer ring 3 is sleeved with an outer ring 4 with one end abutting against the surface of the first flange plate 1, the inner ring 2, the spacer ring 3 and the outer ring 4 are fixedly connected by a plurality of groups of arranged long bolts 5, the inner ring 2, the spacer ring 3 and the outer ring 4 are abutted against one end of the first flange plate 1 with a second flange plate 6, and a plurality of groups of fixing components for locking the second flange plate 6 are passed through the interior of the two groups of first flange plates 1.

[0021] When assembling the heat insulation screen, slide the spacer ring 3 onto the outer ring of the inner ring 2, and slide the outer ring 4 onto the outer ring of the spacer ring 3. After the ends of the spacer ring 3 and the outer ring 4 are moved to contact the surface of the first flange plate 1, use multiple groups of long bolts 5 to fasten the inner ring 2, the spacer ring 3 and the outer ring 4, and abut the second flange plate 6 against the ends of the inner ring 2, the spacer ring 3 and the outer ring 4. After the two groups of opposite heat insulation screens are assembled, connect the two groups of first flange plates 1, and use the fixing assembly to fix the two groups of heat insulation screens in connection.

[0022] In one embodiment, the outer ring of the inner ring 2 is integrally formed with a plurality of first support tubes 7 abutting against the inner ring of the spacer ring 3, and the outer ring of the spacer ring 3 is integrally formed with a plurality of second support tubes 8 abutting against the inner ring of the outer ring 4. The long bolts 5 pass through the first support tubes 7 and the second support tubes 8. The first support tubes 7 and the second support tubes 8 can improve the tightness of the installation between the inner ring 2, the spacer ring 3 and the outer ring 4, thereby improving the overall strength of the heat insulation screen.

[0023] Among them, a first limiting ring 9 is integrally formed on one side of the second flange plate 6 that fits the inner ring 2, the spacer ring 3 and the outer ring 4. The outer ring of the first limiting ring 9 fits with the inner wall of the inner ring 2, which can improve the sealing of the connection between the second flange plate 6 and the inner ring 2, the spacer ring 3 and the outer ring 4, and can improve the lateral support strength of the second flange plate 6 after installation. A second limiting ring 10 is fixedly installed on one side of the first flange plate 1 connected to the inner ring 2. The inner ring of the second limiting ring 10 fits with the surface of the outer ring 4, which can improve the lateral support strength of the connection between the outer ring 4 and the first flange plate 1.

[0024] In one embodiment, specifically, the fixing assembly includes a plurality of connecting rods 11 that slide through two groups of first flange plates 1 and second flange plates 6, one end of the connecting rod 11 is fixedly installed with a fixing end 12 that contacts the surface of one group of second flange plates 6, and the other end of the connecting rod 11 is threadedly connected with a mounting and disassembly end 13 that contacts the surface of another group of second flange plates 6. After the connecting rod 11 passes through the two groups of first flange plates 1 and second flange plates 6, the mounting and disassembly end 13 is installed to the end of the connecting rod 11 to lock and clamp the components installed on the connecting rod 11, thereby realizing the overall fixation of the device.

[0025] The inner ring 2 is mainly made of stainless steel, the spacer ring 3 is mainly made of ceramic material, and the outer ring 4 is mainly made of thin molybdenum plate material, which can ensure the overall heat insulation effect of the heat insulation screen.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flange type heat shield, characterized in that: The invention comprises two groups of first flange plates (1), the two groups of first flange plates (1) are butted against each other, the side of one group of first flange plates (1) away from the other group of first flange plates (1) is integrally formed with an inner ring (2), the side of the first flange plate (1) is butted against a spacer ring (3) sleeved on the outer ring of the inner ring (2), the outer ring of the spacer ring (3) is sleeved with an outer ring (4) with one end butted against the surface of the first flange plate (1); The inner ring (2), the spacer ring (3) and the outer ring (4) are fixedly connected by a plurality of groups of arranged long bolts (5); the inner ring (2), the spacer ring (3) and the outer ring (4) are butted against a second flange plate (6) at one end away from the first flange plate (1); and a plurality of groups of fixing components for locking the second flange plate (6) are passed through the interior of the two groups of first flange plates (1); The fixing assembly comprises a plurality of connecting rods (11) slidingly passing through two groups of first flange plates (1) and second flange plates (6), one end of the connecting rod (11) being fixedly mounted with a fixing end (12) in contact with the surface of one group of second flange plates (6), and the other end of the connecting rod (11) being threadedly connected with a mounting end (13) in contact with the surface of another group of second flange plates (6).

2. A flange type heat shield according to claim 1, characterized in that: The outer ring of the inner ring (2) is integrally formed with a plurality of first support tubes (7) that abut against the inner ring of the spacer ring (3); the outer ring of the spacer ring (3) is integrally formed with a plurality of second support tubes (8) that abut against the inner ring of the outer ring (4); and the long bolt (5) passes through the first support tube (7) and the second support tube (8).

3. The flange type heat shield according to claim 1, characterized in that: A first limiting ring (9) is integrally formed on one side of the second flange plate (6) that fits the inner ring (2), the spacer ring (3) and the outer ring (4), and the outer ring of the first limiting ring (9) fits the inner wall of the inner ring (2).

4. The flange type heat shield according to claim 1, characterized in that: A second limiting ring (10) is fixedly mounted on one side of the first flange plate (1) connected to the inner ring (2), and the inner ring of the second limiting ring (10) is in contact with the surface of the outer ring (4).

5. The flange type heat shield according to claim 1, characterized in that: The inner ring (2) is mainly made of stainless steel material, the spacer ring (3) is mainly made of ceramic material, and the outer ring (4) is mainly made of thin molybdenum plate material.

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