Heat preservation sleeve of guide cylinder

Abstract

The utility model discloses a guide cylinder heat preservation sleeve which comprises a heat preservation sleeve, a first carbon felt layer is fixedly installed at the inner end of the heat preservation sleeve, a second carbon felt layer is fixedly installed at the inner end of the first carbon felt layer, and a first heat preservation ring felt is fixedly installed at the lower end of the second carbon felt layer. A second heat preservation ring felt is fixedly mounted at the inner end of the first heat preservation ring felt, a mounting block is in threaded connection with the inner end of a mounting groove, so that the first guide cylinder section is fixedly mounted in the heat preservation sleeve, and the first guide cylinder section, the second guide cylinder section and the third guide cylinder section are subjected to heat preservation through a first carbon felt layer and a second carbon felt layer; the heat preservation cavity conducts heat preservation on the second guide cylinder section and the third guide cylinder section, the first heat preservation ring felt and the second heat preservation ring felt conduct heat preservation on the fourth guide cylinder section, and then the overall heat preservation effect of the heat preservation sleeve is improved. Mounting bolts penetrate through the fixing screw grooves to facilitate mounting and fixing of the heat preservation sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of guide tube thermal insulation, in particular to a guide tube thermal insulation sleeve. Background Art

[0002] In the process of growing single crystal silicon, the polysilicon raw material must first be placed in a quartz crucible and melted at a temperature above 1420°C. After the temperature stabilizes to the target temperature, the single crystal silicon seed crystal with a determined crystal orientation is melted with the melt and then seeded. The growth process of single crystal silicon is completed through steps such as shoulder release, shoulder rotation, equal diameter, finishing, and cooling. The guide tube plays a very important role in the growth process of single crystal silicon.

[0003] In the prior art, the guide tube has become one of the important systems of the current vertical pulling single crystal furnace. However, during the guide process, it is inconvenient to insulate the guide tube, which affects the actual use effect. In addition, the insulation structure is inconvenient to install and fix, which brings inconvenience to use. Therefore, a guide tube insulation cover is needed. Utility Model Content

[0004] The purpose of the utility model is to design a guide tube insulation cover which is easy to install in view of the above problems existing in the prior art, overcome the deficiencies of the prior art.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A guide tube insulation sleeve comprises a thermal insulation sleeve, wherein a first carbon felt layer is fixedly installed on the inner end of the thermal insulation sleeve, a second carbon felt layer is fixedly installed on the inner end of the first carbon felt layer, a first thermal insulation ring felt is fixedly installed on the lower end of the second carbon felt layer, a second thermal insulation ring felt is fixedly installed on the inner end of the first thermal insulation ring felt, a section of the guide tube is movably installed on the inner end of the second carbon felt layer, a mounting block is fixedly installed on the outer end of the section of the guide tube, a mounting groove is fixedly provided on the upper end of the thermal insulation sleeve, the mounting block is movably installed on the inner end of the mounting groove, the mounting block is matched with the mounting groove, a mounting screw groove is fixedly provided on the mounting block, and the mounting screw groove is fixedly provided on the inner end of the mounting groove, the mounting block is threadedly connected to the mounting groove by a mounting bolt, and the mounting bolt is matched with the mounting screw groove.

[0007] Preferably, the lower end of the first section of the guide tube is fixedly connected to the second section of the guide tube, the lower end of the second section of the guide tube is fixedly connected to the third section of the guide tube, and the lower end of the third section of the guide tube is fixedly connected to the fourth section of the guide tube.

[0008] Preferably, a heat-insulating cavity is provided on the outer side of the second section of the guide tube, a heat-insulating cavity is also provided on the outer side of the third section of the guide tube, and a second heat-insulating ring felt is fixedly installed on the outer side of the fourth section of the guide tube.

[0009] Preferably, a connecting block is fixedly connected to the outer end of the heat-insulating sleeve, a supporting block is fixedly installed to the outer end of the connecting block, and a hook is fixedly installed to the outer end of the supporting block.

[0010] Preferably, a fixing block is installed at the outer end of the thermal insulation sleeve, and a fixing screw groove is fixedly provided on the fixing block. The fixing screw groove is threadedly connected to the fixing block by setting a mounting bolt, and the mounting bolt is adapted to the fixing screw groove.

[0011] Preferably, the guide tube section one forms a guide tube structure through the guide tube section two and the guide tube section three and the guide tube section four.

[0012] Preferably, the thermal insulation sleeve forms a thermal insulation structure through the first carbon felt layer, the second carbon felt layer, the first thermal insulation ring felt, the second thermal insulation ring felt and the thermal insulation cavity.

[0013] Beneficial effects achieved by the utility model:

[0014] The guide tube section 1, the guide tube section 2, the guide tube section 3 and the guide tube section 4 are convenient for guiding, and the guide tube section 1 is convenient for installing and fixing inside the heat preservation sleeve by threading the mounting block at the inner end of the mounting groove, and the first carbon felt layer and the second carbon felt layer are convenient for heat preservation of the guide tube section 1, the guide tube section 2 and the guide tube section 3, and the heat preservation cavity is convenient for heat preservation of the guide tube section 2 and the guide tube section 3, and the first heat preservation ring felt and the second heat preservation ring felt are used to heat preservation of the guide tube section 4, and reduce the temperature leakage of the heat preservation cavity, thereby improving the overall heat preservation effect of the heat preservation sleeve;

[0015] The support block is connected to the insulation sleeve through a connecting block. The support block is used to install a fixed hook. The hook is convenient for lifting the insulation sleeve. The insulation sleeve is convenient for installation and fixation by installing bolts passing through the fixed screw grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0017] Figure 2 It is a partial three-dimensional structural schematic diagram of an embodiment of the utility model;

[0018] Figure 3 This is a schematic cross-sectional structure diagram of an embodiment of the utility model;

[0019] Figure 4 For an embodiment of the utility model Figure 3 A schematic diagram of the enlarged structure in the middle.

[0020] Figure numerals: 1. insulation sleeve; 2. first carbon felt layer; 3. second carbon felt layer; 4. first insulation ring felt; 5. second insulation ring felt; 6. guide tube section 1; 7. mounting block; 8. mounting groove; 9. mounting screw groove; 10. mounting bolt; 11. guide tube section 2; 12. guide tube section 3; 13. guide tube section 4; 14. insulation cavity; 15. connecting block; 16. supporting block; 17. hook; 18. fixing block; 19. fixing screw groove. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0022] like Figure 1-Figure 4 As shown, a guide tube insulation sleeve proposed by the utility model comprises a heat-insulating sleeve 1, a first carbon felt layer 2 is fixedly installed on the inner end of the heat-insulating sleeve 1, a second carbon felt layer 3 is fixedly installed on the inner end of the first carbon felt layer 2, a first heat-insulating ring felt 4 is fixedly installed on the lower end of the second carbon felt layer 3, a second heat-insulating ring felt 5 is fixedly installed on the inner end of the first heat-insulating ring felt 4, a guide tube section 6 is movably installed on the inner end of the second carbon felt layer 3, a mounting block 7 is fixedly installed on the outer end of the guide tube section 6, a mounting groove 8 is fixedly provided on the upper end of the heat-insulating sleeve 1, the mounting block 7 is movably installed on the inner end of the mounting groove 8, the mounting block 7 is adapted to the mounting groove 8, a mounting screw groove 9 is fixedly provided on the mounting block 7, and the mounting screw groove 9 is fixedly provided on the inner end of the mounting groove 8, and the mounting screw groove 9 is fixedly provided on the inner end of the mounting groove 8, and the mounting screw groove 9 is provided by providing a mounting bolt 10 The mounting block 7 is threadedly connected to the mounting groove 8, and the mounting bolt 10 is matched with the mounting screw groove 9. The insulation sleeve 1 forms an insulation structure through the first carbon felt layer 2, the second carbon felt layer 3, the first insulation ring felt 4, the second insulation ring felt 5 and the insulation cavity 14. The mounting block 7 is threadedly connected to the inner end of the mounting groove 8 to facilitate the installation and fixing of the guide tube section 1 6 inside the insulation sleeve 1. The first carbon felt layer 2 and the second carbon felt layer 3 are convenient for insulating the guide tube section 1 6, the guide tube section 2 11 and the guide tube section 3 12. The insulation cavity 14 is convenient for insulating the guide tube section 2 11 and the guide tube section 3 12. The first insulation ring felt 4 and the second insulation ring felt 5 insulate the guide tube section 4 13, and reduce the temperature leakage of the insulation cavity 14, thereby improving the overall insulation effect of the insulation sleeve 1.

[0023] In the present embodiment, the lower end of the first section of the guide tube 6 is fixedly connected with the second section of the guide tube 11, the lower end of the second section of the guide tube 11 is fixedly connected with the third section of the guide tube 12, the lower end of the third section of the guide tube 12 is fixedly connected with the fourth section of the guide tube 13, the outer side of the second section of the guide tube 11 is provided with a heat-insulating cavity 14, the outer side of the third section of the guide tube 12 is also provided with a heat-insulating cavity 14, the outer side of the fourth section of the guide tube 13 is fixedly installed with a second heat-insulating ring felt 5, the first section of the guide tube 6 is formed through the second section of the guide tube 11 and the third section of the guide tube 12 and the fourth section of the guide tube 13 to form a guide tube structure, and the first section of the guide tube 6, the second section of the guide tube 11, the third section of the guide tube 12 and the fourth section of the guide tube 13 are used to facilitate diversion.

[0024] In this embodiment, the outer end of the insulation sleeve 1 is fixedly connected to a connecting block 15, the outer end of the connecting block 15 is fixedly installed with a supporting block 16, the outer end of the supporting block 16 is fixedly installed with a hook 17, the support block 16 is connected to the insulation sleeve 1 through the connecting block 15, the support block 16 is used to install and fix the hook 17, and the hook 17 facilitates the lifting of the insulation sleeve 1.

[0025] In this embodiment, a fixing block 18 is installed at the outer end of the thermal insulation sleeve 1, and a fixing screw groove 19 is fixedly arranged on the fixing block 18. The fixing screw groove 19 is threadedly connected to the fixing block 18 by setting a mounting bolt 10. The mounting bolt 10 is adapted to the fixing screw groove 19. The mounting bolt 10 passes through the fixing screw groove 19 to facilitate the installation and fixation of the thermal insulation sleeve 1.

[0026] Working principle: First, the guide tube section 1 6, the guide tube section 2 11, the guide tube section 3 12 and the guide tube section 4 13 are used for guiding, and then the guide tube section 1 6 is installed and fixed inside the insulation sleeve 1 through the installation block 7 threadedly connected to the inner end of the installation groove 8, and the first carbon felt layer 2 and the second carbon felt layer 3 are used to insulate the guide tube section 1 6, the guide tube section 2 11 and the guide tube section 3 12, and the insulation cavity 14 is used to insulate the guide tube section 2 11 and the guide tube section 3 12 is insulated, the first insulation ring felt 4 and the second insulation ring felt 5 insulate the four sections 13 of the guide tube, and reduce the temperature leakage of the insulation cavity 14, thereby improving the overall insulation effect of the insulation sleeve 1, and then the support block 16 is connected to the insulation sleeve 1 through the connecting block 15, the support block 16 is used to install and fix the hook 17, the hook 17 is convenient for lifting the insulation sleeve 1, and the insulation sleeve 1 is conveniently installed and fixed by installing the bolt 10 through the fixing screw groove 19.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A guide tube insulation sleeve, comprising an insulation sleeve (1), characterized in that: The inner end of the thermal insulation sleeve (1) is fixedly mounted with a first carbon felt layer (2), the inner end of the first carbon felt layer (2) is fixedly mounted with a second carbon felt layer (3), the lower end of the second carbon felt layer (3) is fixedly mounted with a first thermal insulation ring felt (4), the inner end of the first thermal insulation ring felt (4) is fixedly mounted with a second thermal insulation ring felt (5), the inner end of the second carbon felt layer (3) is movably mounted with a guide tube section (6), the outer end of the guide tube section (6) is fixedly mounted with a mounting block (7), and the thermal insulation sleeve (1) is provided with a plurality of heat-insulating rings. The upper end of the mounting block (7) is fixedly provided with a mounting groove (8), the mounting block (7) is movably mounted on the inner end of the mounting groove (8), the mounting block (7) is matched with the mounting groove (8), the mounting block (7) is fixedly provided with a mounting screw groove (9), and the mounting screw groove (9) is fixedly provided at the inner end of the mounting groove (8), the mounting screw groove (9) is threadedly connected to the mounting block (7) and the mounting groove (8) by means of a mounting bolt (10), and the mounting bolt (10) is matched with the mounting screw groove (9).

2. The guide tube insulation sleeve according to claim 1, characterized in that: The lower end of the guide tube section 1 (6) is fixedly connected to the guide tube section 2 (11), the lower end of the guide tube section 2 (11) is fixedly connected to the guide tube section 3 (12), and the lower end of the guide tube section 3 (12) is fixedly connected to the guide tube section 4 (13).

3. The guide tube insulation sleeve according to claim 2, characterized in that: The outer side of the second section (11) of the guide tube is provided with a heat-insulating cavity (14), the outer side of the third section (12) of the guide tube is also provided with a heat-insulating cavity (14), and the outer side of the fourth section (13) of the guide tube is fixedly provided with a second heat-insulating ring felt (5).

4. The guide tube insulation cover according to claim 1, characterized in that: The outer end of the heat-insulating sleeve (1) is fixedly connected to a connecting block (15), the outer end of the connecting block (15) is fixedly mounted to a supporting block (16), and the outer end of the supporting block (16) is fixedly mounted to a hanging hook (17).

5. The guide tube insulation sleeve according to claim 1, characterized in that: A fixing block (18) is mounted on the outer end of the heat-insulating sleeve (1), a fixing screw groove (19) is fixedly arranged on the fixing block (18), the fixing screw groove (19) is threadedly connected to the fixing block (18) by means of a mounting bolt (10), and the mounting bolt (10) is adapted to fit the fixing screw groove (19).

6. The guide tube insulation sleeve according to claim 2, characterized in that: The guide tube section one (6) is connected to the guide tube section two (11), the guide tube section three (12) and the guide tube section four (13) to form a guide tube structure.

7. The guide tube insulation cover according to claim 1, characterized in that: The thermal insulation sleeve (1) forms a thermal insulation structure with the thermal insulation cavity (14) through the first carbon felt layer (2), the second carbon felt layer (3), the first thermal insulation ring felt (4), the second thermal insulation ring felt (5).

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