A type of ventilation duct insulation device
By designing a detachable duct insulation device and using an insulation layer made of alternating insulation cotton and ceramic fiber materials, the problem of the inability to replace the duct insulation layer is solved, thus achieving the ability to detach and replace the insulation layer and improving the insulation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING KEQIAO HENGMING CHEMICAL FIBER CO LTD
- Filing Date
- 2025-11-11
- Publication Date
- 2026-07-31
AI Technical Summary
The existing insulation layer of the air duct is fixedly connected to the air duct, which means that the insulation layer cannot be replaced after it ages, thus affecting the insulation effect.
A heat preservation device for a wind tunnel was designed, which uses a detachable first and second insulation layer. The detachable installation is achieved through fasteners and a sliding connection structure. The first insulation layer is made of insulation cotton material, and the second insulation layer is made of ceramic fiber material. They are arranged alternately to enhance the heat preservation effect.
The insulation layer is removable and replaceable, preventing the air duct from being damaged by excessive temperature and improving the service life and insulation effect of the insulation device.
Smart Images

Figure CN224580005U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat preservation device technology, and more specifically, it relates to a heat preservation device for a ventilation duct. Background Technology
[0002] A ventilation duct is a pipe device used to guide the direction of airflow for gas transmission. In the production and processing of chemical fiber raw materials, ventilation ducts are often used to provide a traditional environment with highly stable temperature and wind speed. In order to prevent the temperature of the gas in the ventilation duct from dropping, an insulation layer is usually installed on the surface of the ventilation duct to prevent the heat in the gas from dissipating. However, the existing insulation layer is usually fixedly connected to the ventilation duct, so when the insulation layer is damaged due to aging or other reasons, it cannot be replaced, which affects the insulation effect of the insulation layer.
[0003] Therefore, a new solution is needed to address this problem. Utility Model Content
[0004] The purpose of this utility model embodiment is to provide a duct insulation device to solve the above-mentioned problems.
[0005] The above-mentioned technical objective of this utility model embodiment is achieved through the following technical solution: a duct insulation device, including a duct body, a plurality of first fixing members that are equally spaced and symmetrically distributed are fixedly connected to the duct body, a first insulation layer that is engaged with the first fixing members is installed on the duct body, a second fixing member is fixedly connected to the first insulation layer, a second insulation layer is installed on the first insulation layer, and the first insulation layer and the second insulation layer are staggered.
[0006] The present invention is further configured such that: the first fixing member includes a fixing block fixedly connected to the air duct body, the fixing block is provided with a slot, the center point of the first insulation layer is provided with an embedded groove, and a locking block that engages with the slot is fixedly connected in the embedded groove.
[0007] The present invention is further configured such that: the second fixing member includes a mounting base fixedly connected to the first insulation layer, the locking block and the mounting base are respectively located on both sides of the first insulation layer, the upper and lower ends of the mounting base are slidably connected to limit blocks, and the upper and lower ends of the second insulation layer are provided with limit grooves that engage with the limit blocks.
[0008] The present invention is further configured such that: the mounting base is provided with a sliding cavity that slides with the limiting block and a through groove that communicates with the sliding cavity; an adjusting block that passes through the sliding cavity and slides with the through groove is fixedly connected to the limiting block; and a spring is fixedly connected between the adjusting block and the inner wall of the sliding cavity.
[0009] The present invention is further configured such that: a recessed groove is provided on the second insulation layer to engage with the mounting base, and the depth of the recessed groove is half the height of the mounting base; the limiting groove is located in the recessed groove and the two limiting grooves are staggered.
[0010] The present invention is further configured such that both the first insulation layer and the second insulation layer are semi-circular, the first insulation layer is made of insulation cotton material, and the second insulation layer is made of ceramic fiber material.
[0011] In summary, this utility model has the following beneficial effects:
[0012] By setting a first insulation layer and a second insulation layer on the outside of the duct body, both the first and second insulation layers can be detached and are staggered. Thus, when the first or second insulation layer is damaged, the damaged insulation layer can be removed and replaced. The second insulation layer can also be removed and installed according to actual needs, preventing the duct body from being damaged by excessively high temperatures in summer. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a ventilation duct insulation device according to the present invention;
[0014] Figure 2 This is a schematic diagram of the structure of the ventilation duct body in this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the first insulation layer in this utility model. Figure 1 ;
[0016] Figure 4 This is a schematic diagram of the structure of the first insulation layer in this utility model. Figure 2 .
[0017] Reference numerals in the attached drawings: 1. Air duct body; 2. First fixing component; 201. Fixing block; 202. Slot; 3. First insulation layer; 301. Embedded groove; 302. Locking block; 4. Second fixing component; 401. Mounting base; 402. Limiting block; 403. Sliding cavity; 404. Through groove; 405. Adjusting block; 406. Spring; 5. Second insulation layer; 501. Limiting groove; 502. Settling groove. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0019] In one possible embodiment, please refer to Figure 1 and Figure 2 As shown, a duct insulation device includes a duct body 1, with multiple equally spaced and symmetrically distributed first fixing members 2 fixedly connected to the duct body 1. A first insulation layer 3 is installed on the duct body 1 and engages with the first fixing members 2. The first fixing members 2 include fixing blocks 201 fixedly connected to the duct body 1, with slots 202 provided on the fixing blocks 201. A groove 301 is provided at the center point of the first insulation layer 3, and a locking block 302 that engages with the slot 202 is fixedly connected in the groove 301. When the first insulation layer 3 needs to be installed, the locking block 302 of the duct body 1 is inserted into the groove 301 of the first insulation layer 3, and then the locking block 302 and the slot 202 are engaged, thereby realizing the installation of the first insulation layer 3. The first insulation layer 3 is made of insulation cotton material, which can ensure the insulation effect of the first insulation layer 3, and the cotton has a certain deformation capacity, which facilitates the installation and removal of the first insulation layer 3.
[0020] Furthermore, a second fixing member 4 is fixedly connected to the first insulation layer 3. The first insulation layer 3 can be moved by applying force to the second fixing member 4, allowing for the installation and removal of the first insulation layer 3. A second insulation layer 5 is installed on the first insulation layer 3. Both the first insulation layer 3 and the second insulation layer 5 are semi-circular and are staggered, which further prevents heat loss. By setting a detachable first insulation layer 3 and second insulation layer 5, when the first insulation layer 3 or the second insulation layer 5 is damaged, the damaged insulation layer can be removed and replaced. The second insulation layer 5 can also be disassembled and installed according to actual needs, preventing the duct body 1 from being damaged due to excessive temperature in summer. The second insulation layer 5 is made of ceramic fiber material, which has high hardness and is not easily damaged.
[0021] Furthermore, the second fixing member 4 includes a mounting base 401 fixedly connected to the first insulation layer 3, a locking block 302, and the mounting base 401 located on both sides of the first insulation layer 3. Limiting blocks 402 are slidably connected to both the upper and lower ends of the mounting base 401. Limiting grooves 501 that engage with the limiting blocks 402 are provided at both the upper and lower ends of the second insulation layer 5. The second fixing member 4 secures the second insulation layer 5 by sliding the limiting blocks 402 into the limiting grooves 501. The mounting base 401 is provided with a sliding cavity 403 that slidably engages with the limiting blocks 402 and a through groove 404 communicating with the sliding cavity 403. A fixed connection is provided on the limiting block 402. An adjusting block 405 extends out of the sliding cavity 403 and slides in conjunction with the through groove 404. A spring 406 is fixedly connected between the adjusting block 405 and the inner wall of the sliding cavity 403. A recessed groove 502 is provided on the second insulation layer 5 to engage with the mounting base 401. The depth of the recessed groove 502 is half the height of the mounting base 401. This ensures that when the mounting base 401 engages with the two second insulation layers 5, there will be no gap between the two second insulation layers 5, thus guaranteeing the insulation quality of the second insulation layer 5. A limiting groove 501 is located in the recessed groove 502, and the two limiting grooves 501 are staggered, which can reduce the width of the mounting base 401 and increase the insulation area of the second insulation layer 5.
[0022] Specifically, when the second insulation layer 5 needs to be installed, force is applied to the adjusting block 405 to drive the limiting block 402 into the sliding cavity 403, and then the recess 502 is engaged with the mounting base 401. At this time, the limiting groove 501 and the limiting block 402 are aligned. When the force on the adjusting block 405 is released, the limiting block 402 will rebound under the action of the spring 406 and slide into the limiting groove 501 to limit the second insulation layer 5, thus completing the installation of the second insulation layer 5. When the second insulation layer 5 needs to be removed, simply apply force to the adjusting block 405 again to make the limiting block 402 slide into the sliding cavity 403, and the second insulation layer 5 can be removed. The operation is simple and convenient.
[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.
Claims
1. A duct thermal insulation device comprising a duct body (1), characterized in that: The air duct body (1) is fixedly connected with a plurality of first fixing members (2) that are equally spaced and symmetrically distributed. The air duct body (1) is installed with a first insulation layer (3) that is snapped into the first fixing member (2). The first insulation layer (3) is fixedly connected with a second fixing member (4). The first insulation layer (3) is installed with a second insulation layer (5). The first insulation layer (3) and the second insulation layer (5) are staggered.
2. The duct insulation device according to claim 1, characterized in that: The first fixing member (2) includes a fixing block (201) fixedly connected to the air duct body (1), the fixing block (201) is provided with a slot (202), the center point of the first insulation layer (3) is provided with a groove (301), and a locking block (302) that engages with the slot (202) is fixedly connected in the groove (301).
3. The duct insulation device according to claim 2, characterized in that: The second fixing member (4) includes a mounting base (401) fixedly connected to the first insulation layer (3). The locking block (302) and the mounting base (401) are located on both sides of the first insulation layer (3). The upper and lower ends of the mounting base (401) are slidably connected to the limiting block (402). The upper and lower ends of the second insulation layer (5) are provided with limiting grooves (501) that engage with the limiting block (402).
4. The duct insulation device according to claim 3, characterized in that: The mounting base (401) is provided with a sliding cavity (403) that slides with the limiting block (402) and a through groove (404) that communicates with the sliding cavity (403). An adjusting block (405) that passes through the sliding cavity (403) and slides with the through groove (404) is fixedly connected to the limiting block (402). A spring (406) is fixedly connected between the adjusting block (405) and the inner wall of the sliding cavity (403).
5. The duct insulation device according to claim 3, characterized in that: The second insulation layer (5) is provided with a recess (502) that engages with the mounting base (401), and the depth of the recess (502) is half the height of the mounting base (401). The limiting groove (501) is located in the recess (502) and the two limiting grooves (501) are staggered.
6. The duct insulation device according to claim 1, characterized in that: The first insulation layer (3) and the second insulation layer (5) are both semi-circular. The first insulation layer (3) is made of insulation cotton material, and the second insulation layer (5) is made of ceramic fiber material.