Heat insulation plate structure of heating chamber

Abstract

The utility model relates to the technical field of heat insulation, and discloses a heat insulation plate structure of a heating chamber, which comprises a cylindrical cavity, a first heat insulation ring is laid on the inner side of the circumference of the cylindrical cavity along the axial direction, and a second heat insulation ring is laid on the inner side of the circumference of the first heat insulation ring along the axial direction; and the upper side and the lower side of the cylindrical cavity communicate with first pipelines aligned with the first heat insulation rings, the upper side of the first pipeline on the upper side and the lower side of the first pipeline on the lower side communicate with second pipelines, heat exchange channels are formed in the outer sides of the circumferences of the second heat insulation rings, and the first heat insulation rings are provided with distribution channels communicating with the first pipelines and the heat exchange channels. The heat loss can be further reduced through the two-layer heat insulation measure of the first-type heat insulation piece and the second-type heat insulation piece, and the high-temperature resistance of the first-type heat insulation piece and the second-type heat insulation piece can be further improved through the arrangement of the heat exchange channel, the second pipeline and other structural compositions.

Description

Technical Field

[0001] The utility model relates to the technical field of heat insulation, in particular to a heat insulation board structure of a heating chamber. Background Art

[0002] In high-temperature heating equipment, such as sintering machines, high-temperature reactors, industrial furnaces, etc., the structure of the heating chamber will directly affect the heating efficiency, temperature uniformity, thermal energy utilization and service life of the equipment.

[0003] High-temperature resistant insulation panels need to be installed inside the heating chamber to reduce heat loss and ensure thermal efficiency. However, the conventional one-layer insulation panel has high requirements on the thickness, material and installation accuracy of the insulation panel, which increases the difficulty of production, installation and maintenance.

[0004] Therefore, in order to solve the above problems, a heat insulation board structure of a heating chamber is proposed. Utility Model Content

[0005] The utility model aims to provide a heat insulation board structure for a heating chamber, and solves the problems raised in the above-mentioned background technology by means of two layers of heat insulation boards which can be conveniently arranged.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the heat insulation plate structure of the heating chamber comprises a cylindrical chamber, a first heat insulation ring is axially laid on the inner side of the circumference of the cylindrical chamber, and a second heat insulation ring is axially laid on the inner side of the circumference of the first heat insulation ring; the upper and lower sides of the cylindrical chamber are both connected and installed with a first pipe aligned with the first heat insulation ring, the upper side of the first pipe on the upper side and the lower side of the first pipe on the lower side are both connected and installed with a second pipe, the outer side of the circumference of the second heat insulation ring is provided with a heat exchange channel, and the first heat insulation ring is provided with a distribution channel connecting the first pipe and the heat exchange channel; each of the first heat insulation rings is formed by splicing a type of heat insulation parts distributed in a circumference, and each of the second heat insulation rings is formed by splicing a type of heat insulation parts distributed in a circumference, and the type one heat insulation parts and the type two heat insulation parts are connected and assembled with the cylindrical chamber through a connecting structure.

[0007] Specifically, the connecting structure includes a first screw and a second screw, nuts are embedded on the circumferential outer sides of the type one thermal insulation member and the type two thermal insulation member, the cylindrical chamber is provided with through holes for passing the first screw and the second screw, the second screw is threadedly assembled with the nut on the type one thermal insulation member, and the first screw is threadedly assembled with the nut on the type two thermal insulation member.

[0008] Furthermore, the type 1 thermal insulation member is provided with a through hole for passing the first screw.

[0009] Furthermore, a flange is fixedly mounted on the side wall of the nut.

[0010] Specifically, the type 1 thermal insulation member is a tile-like structure made of aluminum silicate fiber material, and the type 2 thermal insulation member is a tile-like structure made of ceramic fiber material.

[0011] Specifically, the thickness of the second type thermal insulation member is at least 1.2 times the thickness of the first type thermal insulation member.

[0012] Specifically, the heat exchange channel is wavy.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the heat loss can be further reduced by taking two-layer insulation measures of type one thermal insulation parts and type two thermal insulation parts, and the heat exchange channel, the second pipeline and other structural components can also further enhance the high temperature resistance of type one thermal insulation parts and type two thermal insulation parts.

[0014] In addition, the Type I and Type II thermal insulation components installed through the connecting structure can reduce the difficulty of installation, improve the installation accuracy, and also facilitate the disassembly and replacement of damaged Type I and Type II thermal insulation components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic front view of the structure of the utility model;

[0016] Figure 2 for Figure 1 A schematic cross-sectional view of the structure along the AA axis;

[0017] Figure 3 for Figure 1 A schematic cross-sectional view of the structure along the BB direction;

[0018] Figure 4 It is a schematic three-dimensional diagram of the structure of a second heat insulation ring in the utility model;

[0019] Figure 5 It is a schematic partial cross-sectional view of the structure of the connection structure in the utility model.

[0020] In the figure: 1 cylindrical chamber, 2 connecting structure, 21 first screw, 22 second screw, 23 nut, 24 flange, 3 distribution channel, 4 heat exchange channel, 5 type I thermal insulation, 6 type II thermal insulation, 7 second pipeline, 8 first pipeline. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1 to Figure 5 The utility model provides a heat insulation plate structure of a heating chamber, including a cylindrical chamber 1, a first heat insulation ring is laid along the axial direction on the inner side of the circumference of the cylindrical chamber 1, and a second heat insulation ring is laid along the axial direction on the inner side of the circumference of the first heat insulation ring; the heat insulation performance can be enhanced by laying two layers of heat insulation rings, and the length of the cylindrical chamber 1 can be matched for installation.

[0023] The upper and lower sides of the cylindrical chamber 1 are both connected and installed with a first pipe 8 aligned with the first insulation ring, the upper side of the upper first pipe 8 and the lower side of the lower first pipe 8 are both connected and installed with a second pipe 7, the circumferential outer side of the second insulation ring is opened with a heat exchange channel 4, and the first insulation ring is opened with a distribution channel 3 connecting the first pipe 8 and the heat exchange channel 4; the upper second pipe 7 is used to input low-temperature medium for heat exchange, and the low-temperature medium enters each heat exchange channel 4 through the upper first pipe 8 and the distribution channel 3, and after heat exchange with the first insulation ring and the second insulation ring, it flows back from the lower distribution channel 3 and the first pipe 8 to the lower second pipe 7 for collection and recovery.

[0024] Each first thermal insulation ring is formed by splicing type-one thermal insulation parts 5 distributed in a circle, and each second thermal insulation ring is formed by splicing type-two thermal insulation parts 6 distributed in a circle. The type-one thermal insulation parts 5 and the type-two thermal insulation parts 6 are connected and assembled with the cylindrical chamber 1 through a connecting structure 2. The spliced ​​first thermal insulation ring and the second thermal insulation ring are easy to install, and by means of connection and installation through the connecting structure 2, each type-one thermal insulation part 5 and type-two thermal insulation part 6 is evenly stressed and accurately positioned.

[0025] For details, please refer to Figure 5 The connection structure 2 includes a first screw 21 and a second screw 22. Nuts 23 are embedded on the outer circumferences of the type-one thermal insulation member 5 and the type-two thermal insulation member 6. The cylindrical chamber 1 is provided with through holes for passing the first screw 21 and the second screw 22. The second screw 22 is screwed together with the nut 23 on the type-one thermal insulation member 5, and the first screw 21 is screwed together with the nut 23 on the type-two thermal insulation member 6. At least two nuts 23 are provided on each type-one thermal insulation member 5 and each type-two thermal insulation member 6 to ensure the installation strength of the type-one thermal insulation member 5 and the type-two thermal insulation member 6 and facilitate disassembly.

[0026] The first type insulation member 5 is provided with a through hole for passing the first screw 21 ; the length of the first screw 21 is greater than the second screw 22 to ensure that the first screw 21 can pass through the through hole and be screwed with the nut 23 on the second type insulation member 6 .

[0027] In addition, a flange 24 is fixedly installed on the side wall of the nut 23; when the type 1 thermal insulation member 5 and the type 2 thermal insulation member 6 are press-formed, the setting of the flange 24 can enhance the embedding strength of the nut 23, thereby preventing the nut 23 from being detached from the type 1 thermal insulation member 5 and the type 2 thermal insulation member 6 when being screwed together with the first screw 21 and the second screw 22.

[0028] Specifically, the type 1 thermal insulation component 5 is a tile-like structure made of aluminum silicate fiber material. The type 1 thermal insulation component 5 has aluminum silicate fiber as the main component and has excellent high temperature resistance. The maximum operating temperature can reach 1300°C; the type 2 thermal insulation component 6 is a tile-like structure made of ceramic fiber material. The type 2 thermal insulation component 6 uses ceramic fiber as the raw material and has a maximum operating temperature of 1600°C. Both the type 1 thermal insulation component 5 and the type 2 thermal insulation component 6 have low thermal conductivity and good thermal insulation effect.

[0029] In addition, since the second-type thermal insulation member 6 has a higher temperature resistance, the thickness of the second-type thermal insulation member 6 needs to be set to be at least 1.2 times the thickness of the first-type thermal insulation member 5 to ensure high temperature resistance.

[0030] For details, please refer to Figure 4 The heat exchange channel 4 is wavy, which can increase the overall travel of the low-temperature medium and more fully exchange heat with the first insulation ring and the second insulation ring.

[0031] The working principle of this embodiment:

[0032] Type I thermal insulation member 5 and Type II thermal insulation member 6 are installed in the cylindrical chamber 1 through the connecting structure 2. Type I thermal insulation member 5 and Type II thermal insulation member 6 are staggered in the circumferential direction, and the first thermal insulation ring and the second thermal insulation ring are staggered in the axial direction, thereby forming two thermal insulation layers in the cylindrical chamber 1, and the gap is filled with a ceramic-based sealant, which has good elasticity and can adapt to thermal expansion.

[0033] The second pipes 7 are all connected to the same external condenser. When working, the low-temperature medium can be transported to the second pipe 7 on the upper side, and enter each wavy heat exchange channel 4 through the first pipe 8 and the distribution channel 3. After heat exchange with the first insulation ring and the second insulation ring, it flows back from the distribution channel 3 and the first pipe 8 on the lower side to the second pipe 7 on the lower side for collection and recovery. The high-temperature medium after heat exchange returns to the condenser for cooling treatment for recycling.

[0034] 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, 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 are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat insulation plate structure of a heating chamber, comprising a cylindrical chamber (1), characterized in that: A first heat-insulating ring is laid along the axial direction on the inner side of the circumference of the cylindrical chamber (1), and a second heat-insulating ring is laid along the axial direction on the inner side of the circumference of the first heat-insulating ring; The upper and lower sides of the cylindrical chamber (1) are both connected to and installed with a first pipe (8) aligned with a first heat-insulating ring; the upper side of the first pipe (8) on the upper side and the lower side of the first pipe (8) on the lower side are both connected to and installed with a second pipe (7); a heat exchange channel (4) is provided on the outer circumference of the second heat-insulating ring; and the first heat-insulating ring is provided with a distribution channel (3) connecting the first pipe (8) and the heat exchange channel (4); Each of the first heat-insulating rings is formed by splicing together a type I heat-insulating member (5) distributed in a circumferential manner, and each of the second heat-insulating rings is formed by splicing together a type II heat-insulating member (6) distributed in a circumferential manner, and the type I heat-insulating member (5) and the type II heat-insulating member (6) are connected and assembled with the cylindrical chamber (1) via a connecting structure (2).

2. The heat insulation board structure of the heating chamber according to claim 1, characterized in that: The connection structure (2) comprises a first screw (21) and a second screw (22); nuts (23) are embedded on the outer circumferences of the first type thermal insulation member (5) and the second type thermal insulation member (6); the cylindrical chamber (1) is provided with through holes for passing the first screw (21) and the second screw (22); the second screw (22) is screwed together with the nut (23) on the first type thermal insulation member (5); and the first screw (21) is screwed together with the nut (23) on the second type thermal insulation member (6).

3. The heat insulation board structure of the heating chamber according to claim 2, characterized in that: The first type of thermal insulation member (5) is provided with a through hole for passing the first screw (21).

4. The heat insulation board structure of the heating chamber according to claim 2, characterized in that: A flange (24) is fixedly mounted on the side wall of the nut (23).

5. The heat insulation board structure of the heating chamber according to claim 1, characterized in that: The first type of thermal insulation component (5) is a tile-shaped structure made of aluminum silicate fiber material, and the second type of thermal insulation component (6) is a tile-shaped structure made of ceramic fiber material.

6. The heat insulation board structure of the heating chamber according to claim 1, characterized in that: The thickness of the second type thermal insulation member (6) is at least 1.2 times the thickness of the first type thermal insulation member (5).

7. The heat insulation board structure of the heating chamber according to claim 1, characterized in that: The heat exchange channel (4) is wavy.

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