Carbon-carbon composite insulation barrel and heating furnace

Abstract

The utility model provides a carbon-carbon composite heat preservation barrel and a heating furnace, which relate to the technical field of heat preservation structures and comprise a heat preservation barrel body and an end cover plate, the two end cover plates are arranged at the two ends of the heat preservation cylinder body respectively, clamping grooves are formed in the two end faces of the heat preservation cylinder body, protruding rings are arranged on the end cover plates, and the protruding rings can be connected to the clamping grooves in a clamped mode so that the end cover plates can be connected with the heat preservation cylinder body; the clamping grooves are formed in the two ends of the heat preservation barrel body, the protruding rings on the end cover plates can be clamped into the clamping grooves, and therefore the end cover plates can support the heat preservation barrel body, the heat preservation barrel body is prevented from losing efficacy due to external force, and the problems that in the prior art, a carbon-carbon heat preservation barrel is low in density and prone to damage in the carrying and transporting process are solved. According to the carbon-carbon composite insulation barrel, the technical problems that products are blocked during installation, leak heat during use and are directly scrapped due to poor phenomena such as interlayer cracking caused by collision, edge collapse caused by edge extrusion, collapse caused by impact of foreign objects and the like in the prior art are solved, and the overall yield of the carbon-carbon composite insulation barrel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation structures, in particular to a carbon-carbon composite thermal insulation barrel and a heating furnace. Background Art

[0002] Carbon-carbon composite thermal insulation material is a carbon matrix composite material reinforced by carbon fiber and its fabric. Under the protection of inert gas, its maximum service temperature is above 3000°C. Because of its small specific gravity, uniform porosity, low thermal conductivity and good heat preservation performance, it is widely used in industries such as semiconductor crystal growth, photovoltaic crystal growth, powder metallurgy, and vacuum high-temperature heat treatment furnaces.

[0003] Existing carbon-carbon composite thermal insulation barrels generally have a carbon-carbon composite thermal insulation cylinder and two end head covers. The two end faces of the carbon-carbon composite thermal insulation cylinder are processed by machining and are bonded to the end head covers through phenolic resin.

[0004] However, due to the low density of the soft felt of the original carbon-carbon thermal insulation cylinder, during handling and transportation, there are prone to adverse phenomena such as interlayer cracking caused by bumping, edge collapse caused by edge extrusion, and chipping caused by external object impact, resulting in obstacles during product installation, heat leakage during use, and direct scrapping. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a carbon-carbon composite thermal insulation barrel to solve the technical problems in the prior art that the soft felt of the carbon-carbon thermal insulation cylinder has a low density, and during handling and transportation, there are prone to adverse phenomena such as interlayer cracking caused by bumping, edge collapse caused by edge extrusion, and chipping caused by external object impact, resulting in obstacles during product installation, heat leakage during use, and direct scrapping.

[0006] In a first aspect, a carbon-carbon composite thermal insulation barrel provided by the utility model includes a thermal insulation barrel body and end head covers;

[0007] The two end head covers are respectively arranged at both ends of the thermal insulation barrel body,

[0008] Card slots are arranged on both end faces of the thermal insulation barrel body, and a raised ring is arranged on the end head cover. The raised ring can be clamped in the card slot to connect the end head cover with the thermal insulation barrel body.

[0009] Further, the thermal insulation barrel body is cylindrical, and the end head cover is cylindrical.

[0010] Further, the outer diameter of the thermal insulation barrel body is smaller than the outer diameter of the end head cover.

[0011] Further, the end head cover is made of carbon-carbon composite material, and the direction of the carbon filaments between layers of the end head cover is perpendicular to the direction of the carbon filaments of the thermal insulation barrel body.

[0012] Further, an adhesive layer is provided between the end head cover plate and the heat preservation cylinder body.

[0013] In a second aspect, the present utility model further provides a heating furnace, which includes a heat preservation layer, a crucible, a heating element, and the above-mentioned carbon-carbon composite heat preservation barrel.

[0014] Compared with the prior art, a carbon-carbon composite heat preservation barrel provided by the present utility model includes a heat preservation cylinder body and end head cover plates; the two end head cover plates are respectively arranged at both ends of the heat preservation cylinder body, clamping grooves are arranged on the end faces at both ends of the heat preservation cylinder body, and a raised ring is arranged on the end head cover plate. The raised ring can be clamped in the clamping groove to connect the end head cover plate with the heat preservation cylinder body; by arranging the clamping grooves at both ends of the heat preservation cylinder body, the raised ring on the end head cover plate can be clamped into the clamping groove, so that the end head cover plate can provide support for the heat preservation cylinder body, preventing the heat preservation cylinder body from failing due to external force, and solving the technical problems in the prior art that the density of the carbon-carbon heat preservation cylinder is low, and during handling and transportation, there are easily problems such as interlayer cracking caused by bumping, edge collapse caused by edge extrusion, and chipping caused by external object impact, resulting in obstacles during product installation, heat leakage during use, and direct scrapping, thereby improving the overall yield of the carbon-carbon composite heat preservation barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure of the carbon-carbon composite heat preservation barrel provided by the embodiment of the present utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the end head cover plate in the carbon-carbon composite heat preservation barrel provided by the embodiment of the present utility model;

[0018] Figure 3 It is a structural cross-sectional view of the end of the heat preservation cylinder body in the carbon-carbon composite heat preservation barrel provided by the embodiment of the present utility model.

[0019] Reference numerals:

[0020] 100. Heat preservation cylinder body; 110. Clamping groove;

[0021] 200. End head cover plate; 210. Raised ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings below is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0024] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The following will describe in detail some embodiments of the present utility model in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0029] As Figures 1 to 3 shown, an embodiment of the present utility model provides a carbon-carbon composite heat preservation barrel, which includes a heat preservation barrel body 100 and end head covers 200; the two end head covers 200 are respectively arranged at both ends of the heat preservation barrel body 100, clamping grooves 110 are arranged on both end faces of the heat preservation barrel body 100, and a raised ring 210 is arranged on the end head cover 200. The raised ring 210 can be clamped in the clamping groove 110 so that the end head cover 200 is connected to the heat preservation barrel body 100.

[0030] That is, for the carbon-carbon composite heat preservation barrel provided in this embodiment, by arranging the clamping grooves 110 at both ends of the heat preservation barrel body 100, the raised ring 210 on the end head cover 200 can be clamped into the clamping grooves 110, so that the end head cover 200 can provide support for the heat preservation barrel body 100, preventing the heat preservation barrel body 100 from failing due to external forces, and solving the technical problems in the prior art that the density of the carbon-carbon heat preservation barrel is low, and during handling and transportation, there are prone to problems such as interlayer cracking caused by bumping, edge collapse caused by edge extrusion, and chipping caused by external object impact, which lead to obstacles in product installation, heat leakage during use, and direct scrapping, thereby improving the overall yield of the carbon-carbon composite heat preservation barrel.

[0031] Specifically, the heat preservation barrel body 100 is integrally in a hollow cylindrical shape, and grooves with a rectangular cross-section are arranged on both end faces thereof, which are the clamping grooves 110. Correspondingly, a raised ring 210 with the same shape as the clamping groove 110 is arranged on the end head cover 200. After the raised ring 210 is clamped into the clamping groove 110, the end head cover 200 can be clamped to both sides of the heat preservation barrel body 100, thereby providing support for the heat preservation barrel body 100.

[0032] Furthermore, the heat preservation barrel body 100 is cylindrical, and the end head cover 200 is cylindrical.

[0033] Specifically, for the manufacture of the heat preservation barrel body 100, the heat preservation barrel body 100 is set to be cylindrical, and the groove is also set to be circular. Correspondingly, the end head cover 200 is also set to be cylindrical, and the raised ring 210 is also set to be circular, thereby reducing the manufacturing difficulty of the carbon-carbon composite heat preservation barrel.

[0034] Preferably, the outer diameter of the heat preservation barrel body 100 is smaller than the outer diameter of the end head cover 200.

[0035] Specifically, the outer diameter of the end head cover 200 is slightly larger than the outer diameter of the heat preservation barrel body 100, which can further improve the protection effect of the heat preservation cover on the end head cover 200 and avoid the heat preservation barrel body 100 from being impacted on the circumferential side.

[0036] Furthermore, the end head cover plate 200 is made of carbon-carbon composite material, and the direction of the carbon filaments between layers of the end head cover plate 200 is perpendicular to the direction of the carbon filaments of the heat preservation cylinder body 100.

[0037] Specifically, the direction of the carbon filaments between layers of the end head cover plate 200 is perpendicular to the direction of the carbon filaments of the heat preservation cylinder body 100. During the high-temperature expansion process, the end head cover plate 200 can restrain the outward expansion of the main body of the heat preservation cylinder body 100, which helps to protect the dimensional stability of the heat preservation cylinder body 100 and avoid abnormal heat preservation caused by dimensional changes during continuous high-temperature cooling.

[0038] Preferably, an adhesive layer is provided between the end head cover plate 200 and the heat preservation cylinder body 100.

[0039] Specifically, the adhesive layer is arranged on the end face where the end head cover plate 200 is in contact with the heat preservation cylinder body 100. By providing an adhesive layer between the end head cover plate 200 and the heat preservation cylinder body 100, the connection firmness between the end head cover plate 200 and the heat preservation cylinder body 100 can be further improved.

[0040] The present utility model also provides a heating furnace, which includes a heat preservation layer, a crucible, a heating element and all the technical features of the above-mentioned carbon-carbon composite heat preservation barrel, that is, it includes all the technical effects of the above-mentioned carbon-carbon composite heat preservation barrel, which will not be elaborated here.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A carbon-carbon composite heat-insulating bucket, characterized in that, It includes a heat-insulating cylinder body (100) and end covers (200). The two end covers (200) are respectively arranged at both ends of the heat-insulating cylinder body (100). Clamping grooves (110) are arranged on both end faces of the heat-insulating cylinder body (100), and a raised ring (210) is arranged on the end cover (200). The raised ring (210) can be clamped in the clamping groove (110) so that the end cover (200) is connected to the heat-insulating cylinder body (100).

2. The carbon-carbon composite heat preservation barrel according to claim 1, wherein The heat-insulating cylinder body (100) is cylindrical, and the end cover (200) is cylindrical.

3. The carbon-carbon composite heat preservation barrel according to claim 2, wherein, The outer diameter of the heat-insulating cylinder body (100) is smaller than the outer diameter of the end cover (200).

4. The carbon-carbon composite heat preservation barrel according to claim 1, characterized in that, The end cover (200) is made of a carbon-carbon composite material, and the direction of the carbon filaments between layers of the end cover (200) is perpendicular to the direction of the carbon filaments of the heat-insulating cylinder body (100).

5. The carbon-carbon composite heat-insulating barrel according to claim 1, wherein An adhesive layer is arranged between the end cover (200) and the heat-insulating cylinder body (100).

6. A heating furnace, characterized in that, It includes a heat-insulating layer, a crucible, a heating element, and a carbon-carbon composite heat-insulating barrel according to any one of claims 1-5.

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