Micro-perforated sound-absorbing ceramic structure

Abstract

The utility model discloses a micro-hole sound-absorbing ceramic structure, which comprises a micropore ceramic lining layer, a pouring connecting layer and a protective outer layer, the outer surface of the micropore ceramic lining layer is provided with a first barb groove, the outer surface of the pouring connecting layer is integrally provided with a first convex block, the first convex block is inserted into the first barb groove, and the protective outer layer is provided with a second barb groove. Second barb grooves are formed in the inner surface of the protective outer layer, second protruding blocks are integrally formed on the outer surface of the pouring connecting layer, and the second protruding blocks are inserted into the second barb grooves. By arranging the pouring connecting layer, the pouring connecting layer can be arranged between the microporous ceramic lining layer and the protective outer layer in a pouring mode, meanwhile, by arranging the first barb groove, the first protruding block, the second barb groove and the second protruding block, the first protruding block is inserted into the first barb groove, and the second protruding block is inserted into the second barb groove. Therefore, the stability of connection between the microporous ceramic lining layer and the protective outer layer is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic tube structures, in particular to a micro-opening sound-absorbing ceramic structure. Background Art

[0002] Microporous ceramics refer to ceramic bodies that contain a large number of open or closed tiny pores inside or on the surface of the ceramics, and their pore sizes are generally in the micron or submicron level.

[0003] Microporous ceramic tube is a metal ceramic lined composite tube made of microporous ceramics, which is manufactured by high-tech production process - self-propagating high-temperature clutch synthesis method. The tube consists of three layers from the inside to the outside, namely corundum ceramic, transition layer and steel. The ceramic layer is formed by dense corundum ceramic (AL2O3) at a high temperature above 2200℃, and forms a firm bond with the steel pipe through the transition layer.

[0004] The transition layer in traditional ceramic tubes is generally directly bonded between the corundum ceramic and the steel layer, and the contact surface is a smooth structure, which reduces the stability of the connection between the corundum ceramic and the steel layer. At the same time, the sound absorption effect of the ceramic pipe structure is low, resulting in poor sound insulation effect of the ceramic pipe structure. For this reason, a micro-porous sound-absorbing ceramic structure is designed. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a micro-porous sound-absorbing ceramic structure to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A microporous sound-absorbing ceramic structure, comprising a microporous ceramic inner lining layer, a cast connection layer and a protective outer layer, wherein the protective outer layer is arranged on the outer side of the microporous ceramic inner lining layer, the cast connection layer is cast and arranged on the outer surface of the microporous ceramic inner lining layer and the inner surface of the protective outer layer, the outer surface of the microporous ceramic inner lining layer is provided with a first barb groove, the outer surface of the cast connection layer is integrally formed with a first protrusion, the first protrusion is inserted into the first barb groove, the inner surface of the protective outer layer is provided with a second barb groove, the outer surface of the cast connection layer is integrally formed with a second protrusion, the second protrusion is inserted into the second barb groove;

[0008] The outer surfaces of both ends of the protective outer layer are provided with connecting rings, the inner surfaces of the connecting rings are provided with internal threads, the outer surface of the protective outer layer is provided with external threads threadedly connected to the internal threads, connecting holes are provided on the connecting rings, and a sound-absorbing layer is provided between the connecting rings at both ends, and the sound-absorbing layer is sleeved on the outer surface of the protective outer layer.

[0009] By adopting the above technical scheme, by setting a cast connecting layer, the cast connecting layer can be cast and set between the microporous ceramic lining layer and the protective outer layer, and at the same time, by setting a first barb groove, a first protrusion, a second barb groove and a second protrusion, the first protrusion is inserted into the first barb groove, and the second protrusion is inserted into the second barb groove, thereby further improving the stability of the connection between the microporous ceramic lining layer and the protective outer layer; by setting a sound-absorbing layer, the sound absorption effect of the pipeline can be improved, thereby improving the sound insulation performance, and at the same time, by setting an internal thread and an external thread, the connecting ring can be easily disassembled and assembled, thereby facilitating the sound-absorbing layer to be sleeved on the protective outer layer and removing the sound-absorbing layer from the protective outer layer.

[0010] Preferably, eight groups of connection holes are provided, and the eight groups of connection holes are evenly distributed on the circumference of the connection ring.

[0011] By adopting the above technical solution, the stability of the connection can be increased.

[0012] Preferably, a sealing slot is provided on the outer surface of the cast connection layer, and the depth of the sealing slot is set to 5-10 mm.

[0013] By adopting the above technical solution and providing a sealing slot, the sealing strip can be inserted into the sealing slot when the pipes are connected, thereby increasing the sealing performance of the connection.

[0014] Preferably, the first barb grooves are provided in a plurality of groups, and the plurality of groups of the first barb grooves are evenly distributed on the outer surface of the microporous ceramic lining layer in a cross structure.

[0015] By adopting the above technical solution, the stability of the connection between the microporous ceramic lining layer and the casting connection layer can be increased.

[0016] Preferably, the second barb grooves are provided in a plurality of groups, and the plurality of groups of the second barb grooves are evenly distributed on the outer surface of the microporous ceramic lining layer in a cross structure.

[0017] By adopting the above technical solution, the stability of the connection between the cast connecting layer and the protective outer layer can be increased.

[0018] Preferably, the casting connection layer is set as a resin glue layer, and the thickness of the casting connection layer is set to 1-3 mm.

[0019] By adopting the above technical solution, it is convenient to bond and fix the microporous ceramic lining layer and the protective outer layer.

[0020] Preferably, the protective outer layer is set to be a metal steel layer, and the thickness of the protective outer layer is set to 3-5 mm.

[0021] By adopting the above technical solution, the structural strength of the protective outer layer can be increased and the protective effect can be improved.

[0022] Preferably, the sound absorbing layer is configured as a sound absorbing cotton layer, and the thickness of the sound absorbing layer is configured to be 5-8 mm.

[0023] By adopting the above technical solution, it is possible to conveniently perform sound absorption treatment on the inside of the pipeline, thereby increasing the sound insulation effect.

[0024] In summary, the utility model mainly has the following beneficial effects:

[0025] First, the utility model can cast the casting connection layer between the microporous ceramic lining layer and the protective outer layer by setting the casting connection layer, and at the same time, by setting the first barb groove, the first protrusion, the second barb groove and the second protrusion, the first protrusion is inserted into the first barb groove, and the second protrusion is inserted into the second barb groove, thereby further improving the stability of the connection between the microporous ceramic lining layer and the protective outer layer;

[0026] Second, the utility model can improve the sound absorption effect of the pipeline by providing a sound-absorbing layer, thereby improving the sound insulation performance. At the same time, by providing an internal thread and an external thread, the connecting ring can be easily disassembled and assembled, thereby facilitating the sound-absorbing layer to be sleeved on the protective outer layer and removing the sound-absorbing layer from the protective outer layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is one of the structural schematic diagrams of the utility model;

[0028] Figure 2 This is the second structural diagram of the utility model;

[0029] Figure 3 It is a structural sectional view of the utility model;

[0030] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0031] Figure numerals: 1. microporous ceramic lining layer; 2. cast connection layer; 3. protective outer layer; 4. first barb groove; 5. first protrusion; 6. second barb groove; 7. second protrusion; 8. connecting ring; 9. internal thread; 10. external thread; 11. connecting hole; 12. sound absorbing layer; 13. sealing slot. DETAILED DESCRIPTION

[0032] 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. Example 1

[0033] refer to Figure 1-4 A microporous sound-absorbing ceramic structure comprises a microporous ceramic inner lining layer 1, a cast connection layer 2 and a protective outer layer 3, wherein the protective outer layer 3 is arranged on the outer side of the microporous ceramic inner lining layer 1, the cast connection layer 2 is cast and arranged on the outer surface of the microporous ceramic inner lining layer 1 and the inner surface of the protective outer layer 3, the outer surface of the microporous ceramic inner lining layer 1 is provided with a first barb groove 4, the outer surface of the cast connection layer 2 is integrally formed with a first protrusion 5, and the first protrusion 5 is inserted into the first barb groove 4, the inner surface of the protective outer layer 3 is provided with a second barb groove 6, the outer surface of the cast connection layer 2 is integrally formed with a second protrusion 7, and the second protrusion 7 is inserted into the second barb groove 6;

[0034] In order to increase the stability of the connection between the microporous ceramic lining layer 1 and the cast connection layer 2, a plurality of groups of first barb grooves 4 are provided, and a plurality of groups of first barb grooves 4 are evenly distributed on the outer surface of the microporous ceramic lining layer 1 in a cross structure; in order to increase the stability of the connection between the cast connection layer 2 and the protective outer layer 3, a plurality of groups of second barb grooves 6 are provided, and a plurality of groups of second barb grooves 6 are evenly distributed on the outer surface of the microporous ceramic lining layer 1 in a cross structure;

[0035] The outer surfaces of both ends of the protective outer layer 3 are provided with connecting rings 8, the inner surface of the connecting ring 8 is provided with an internal thread 9, the outer surface of the protective outer layer 3 is provided with an external thread 10 threadedly connected to the internal thread 9, and the connecting ring 8 is provided with connecting holes 11. In order to increase the stability of the connection, eight groups of connecting holes 11 are provided, and the eight groups of connecting holes 11 are evenly distributed on the circumference of the connecting ring 8. A sound-absorbing layer 12 is provided between the connecting rings 8 at both ends, and the sound-absorbing layer 12 is sleeved on the outer surface of the protective outer layer 3; in order to increase the structural strength of the protective outer layer 3 and enhance the protective effect, the protective outer layer 3 is set to a metal steel layer, and the thickness of the protective outer layer 3 is set to 3-5mm; in order to facilitate the sound absorption treatment of the inside of the pipeline, thereby increasing the sound insulation effect, the sound-absorbing layer 12 is set to a sound-absorbing cotton layer, and the thickness of the sound-absorbing layer 12 is set to 5-8mm.

[0036] refer to Figure 2-3 A sealing slot 13 is provided on the outer surface of the casting connection layer 2, and the depth of the sealing slot 13 is set to 5-10mm; by setting the sealing slot 13, the sealing strip can be inserted into the sealing slot 13 when the pipeline is connected, thereby increasing the sealing of the connection; in order to facilitate the bonding and fixing of the microporous ceramic lining layer 1 and the protective outer layer 3, the casting connection layer 2 is set to a resin glue layer, and the thickness of the casting connection layer 2 is set to 1-3mm.

[0037] refer to Figure 1-4The utility model can cast the cast connecting layer 2 between the microporous ceramic lining layer 1 and the protective outer layer 3 by setting the cast connecting layer 2, and at the same time, by setting the first barb groove 4, the first protrusion 5, the second barb groove 6 and the second protrusion 7, the first protrusion 5 is inserted into the first barb groove 4, and the second protrusion 7 is inserted into the second barb groove 6, thereby further improving the stability of the connection between the microporous ceramic lining layer 1 and the protective outer layer 3; by setting the sound-absorbing layer 12, the sound absorption effect of the pipeline can be improved, thereby improving the sound insulation performance; at the same time, by setting the internal thread 9 and the external thread 10, the connecting ring 8 can be easily disassembled and assembled, thereby facilitating the sound-absorbing layer 12 to be sleeved on the protective outer layer 3 and removing the sound-absorbing layer 12 from the protective outer layer 3.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro-porous sound-absorbing ceramic structure, characterized in that: The invention comprises a microporous ceramic lining layer (1), a cast connection layer (2) and a protective outer layer (3), wherein the protective outer layer (3) is arranged on the outer side of the microporous ceramic lining layer (1), the cast connection layer (2) is cast and arranged on the outer surface of the microporous ceramic lining layer (1) and the inner surface of the protective outer layer (3), the outer surface of the microporous ceramic lining layer (1) is provided with a first barb groove (4), the outer surface of the cast connection layer (2) is integrally formed with a first protrusion (5), the first protrusion (5) is inserted into the first barb groove (4), the inner surface of the protective outer layer (3) is provided with a second barb groove (6), the outer surface of the cast connection layer (2) is integrally formed with a second protrusion (7), the second protrusion (7) is inserted into the second barb groove (6); The outer surfaces of both ends of the protective outer layer (3) are provided with connecting rings (8), the inner surface of the connecting ring (8) is provided with an internal thread (9), the outer surface of the protective outer layer (3) is provided with an external thread (10) threadedly connected to the internal thread (9), the connecting ring (8) is provided with a connecting hole (11), and a sound absorbing layer (12) is provided between the connecting rings (8) at both ends, and the sound absorbing layer (12) is sleeved on the outer surface of the protective outer layer (3).

2. The micro-porous sound-absorbing ceramic structure according to claim 1, characterized in that: The connection holes (11) are provided in eight groups, and the eight groups of connection holes (11) are evenly distributed on the circumference of the connection ring (8).

3. The micro-porous sound-absorbing ceramic structure according to claim 1, characterized in that: A sealing slot (13) is provided on the outer surface of the cast connection layer (2), and the depth of the sealing slot (13) is set to 5-10 mm.

4. The micro-porous sound-absorbing ceramic structure according to claim 1, characterized in that: The first barb grooves (4) are provided in a plurality of groups, and the plurality of groups of the first barb grooves (4) are evenly distributed on the outer surface of the microporous ceramic lining layer (1) in a cross structure.

5. The micro-porous sound-absorbing ceramic structure according to claim 4, characterized in that: The second barb grooves (6) are provided in a plurality of groups, and the plurality of groups of the second barb grooves (6) are evenly distributed on the outer surface of the microporous ceramic lining layer (1) in a cross structure.

6. The micro-porous sound-absorbing ceramic structure according to claim 1, characterized in that: The pouring connection layer (2) is configured as a resin adhesive layer, and the thickness of the pouring connection layer (2) is configured to be 1-3 mm.

7. The micro-porous sound-absorbing ceramic structure according to claim 1, characterized in that: The protective outer layer (3) is configured as a metal steel layer, and the thickness of the protective outer layer (3) is configured to be 3-5 mm.

8. The micro-porous sound-absorbing ceramic structure according to claim 1, characterized in that: The sound absorbing layer (12) is configured as a sound absorbing cotton layer, and the thickness of the sound absorbing layer (12) is configured to be 5-8 mm.

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