An adhesive aerogel insulation sleeve for corrugated pipes used in thermal pipelines

The adhesive aerogel insulation jacket solves the problems of inconvenient construction, easy damage and heat loss of corrugated pipes in thermal pipelines, achieving efficient construction, low maintenance cost and excellent insulation performance, adapting to the thermal expansion and contraction of pipelines and reducing environmental impact.

CN224339763UActive Publication Date: 2026-06-09BEIJING HUIXING JUYUAN ENERGY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING HUIXING JUYUAN ENERGY TECHNOLOGY CO LTD
Filing Date
2025-08-13
Publication Date
2026-06-09

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Abstract

This utility model discloses an adhesive aerogel insulation sleeve for corrugated pipes used in thermal pipelines, comprising an upper ring sleeve, a lower ring sleeve, and an insulation cover disposed between the upper and lower ring sleeves. The insulation cover includes an inner protective layer and an outer protective layer disposed on its inner and outer walls, an inner protective layer and an outer protective layer respectively disposed on the outer walls of the inner and outer protective layers, and an insulation layer disposed between the inner and outer protective layers. The upper and lower ring sleeves are respectively sewn to the upper and lower walls of the insulation cover by stitching. The advantages of this utility model compared to existing technologies are: it provides an adhesive aerogel insulation sleeve for corrugated pipes used in thermal pipelines that is convenient to construct, lighter in weight, and easier to open and maintain.
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Description

Technical Field

[0001] This utility model relates to the field of thermal pipeline insulation technology, specifically to an adhesive aerogel insulation sleeve for corrugated thermal pipelines. Background Technology

[0002] Existing thermal pipeline corrugated pipe insulation typically uses insulation tiles for insulation. However, using insulation tiles has the following significant drawbacks:

[0003] Insulation integrity is easily affected: the tiles need to be spliced ​​and installed, and if the joints are not properly treated (such as not being sealed tightly), heat loss is likely to occur;

[0004] Poor adaptability to deformation: Thermal pipelines expand and contract due to changes in medium temperature, while the tiles are mostly made of rigid materials (such as cement vermiculite, aluminum silicate, etc.). They are prone to cracking and loosening due to long-term stress from pipeline expansion and contraction, leading to damage to the insulation layer.

[0005] Low construction efficiency: Installation requires splicing and fixing each piece individually, which requires a high degree of flatness of the pipe surface. Moreover, when working at height or in a confined space (such as a trench), the operation is cumbersome and time-consuming.

[0006] High maintenance costs: If a section of the tile is damaged, some surrounding tiles need to be removed before it can be replaced. The repair process is complicated and may affect the insulation effect of adjacent areas, resulting in high long-term maintenance costs.

[0007] Susceptible to environmental influences: In humid environments, water may seep into the joints of the tiles, causing the thermal conductivity of the insulation material to increase and its insulation performance to decrease. This may also accelerate pipe corrosion. Utility Model Content

[0008] (I) Problems to be solved

[0009] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide an adhesive aerogel insulation sleeve for corrugated pipes of thermal pipelines that is convenient to construct, lighter in weight, and easy to open and maintain.

[0010] (II) Technical Solution

[0011] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an adhesive aerogel insulation sleeve for corrugated pipes of thermal pipelines, including an upper ring sleeve, a lower ring sleeve, and an insulation cover disposed between the upper ring sleeve and the lower ring sleeve;

[0012] The heat insulation cover includes an inner protective layer and an outer protective layer disposed on its inner wall and outer wall, an inner protective layer and an outer protective layer respectively connected to the inner protective layer and the outer protective layer, and a heat insulation layer disposed between the inner protective layer and the outer protective layer.

[0013] The upper and lower rings are respectively sewn to the upper and lower walls of the insulation cover by stitching.

[0014] As an improvement, both the inner and outer protective layers are made of silicone high-temperature coated fabric.

[0015] As an improvement, the insulation layer is an aerogel felt.

[0016] As an improvement, one side of the upper ring, lower ring, and heat insulation cover is provided with an opening that penetrates through the upper and lower walls.

[0017] The upper ring, lower ring, and insulation cover are all connected at both ends of their openings to form a ring;

[0018] When the two ends of the opening of the heat insulation cover are connected to form a ring, the opening ends overlap and seal.

[0019] As an improvement, the suture thread is a steel wire suture thread.

[0020] As an improvement, both the upper and lower ring sleeves are provided with several flange openings along their circumference.

[0021] (III) Beneficial Effects

[0022] The advantages of this utility model compared with the prior art are as follows:

[0023] Superior thermal insulation performance: Aerogel felt has a much lower thermal conductivity than insulation tiles, which can significantly reduce the thickness of the insulation layer while maintaining the same insulation effect, thus saving pipe installation space;

[0024] Better overall integrity and reduced heat loss: Aerogel felt is a flexible roll material that can be continuously wrapped around pipes with fewer seams and easy sealing, which can effectively prevent heat loss caused by splicing gaps in insulation tiles.

[0025] Strong adaptability to pipeline deformation: The material is flexible and can deform to a certain extent with the thermal expansion and contraction of the heating pipeline, making it less prone to cracks or loosening, thus reducing the problem of insulation layer damage caused by pipeline expansion and contraction.

[0026] More convenient and efficient construction: Lightweight, it can directly wrap the pipe without the need for splicing and fixing piece by piece, which can greatly improve construction efficiency and shorten the construction period;

[0027] Simpler maintenance: When damaged, it can be directly replaced without removing a large area of ​​the surrounding insulation layer, resulting in low maintenance costs and easy operation;

[0028] Superior weather resistance and stability: It has good waterproof and moisture-proof properties, and its thermal insulation performance does not decrease significantly after being exposed to moisture; it also has strong chemical stability and is not easily degraded by environmental factors (such as humidity and temperature fluctuations), which can reduce the risk of corrosion to pipelines.

[0029] Space and weight saving: Under the same insulation effect, the thickness of aerogel felt is only 1 / 3 to 1 / 5 of that of insulation tile, which can significantly reduce the overall space occupied by the pipeline and reduce the load on the pipeline. It is especially suitable for scenarios with limited space and weight (such as overhead pipelines and high-rise building shafts). Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of an adhesive aerogel insulation sleeve for a thermal pipeline corrugated pipe.

[0031] Figure 2 This is a structural schematic diagram of a cross-section of an adhesive aerogel insulation sleeve for a thermal pipeline corrugated pipe.

[0032] As shown in the figure: 1. Upper ring; 2. Lower ring; 3. Inner protective layer; 4. Outer protective layer; 5. Inner protective layer; 6. Outer protective layer; 7. Insulation layer; 8. Opening; 9. Flange. Detailed Implementation

[0033] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0034] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0038] Please refer to the appendix carefully. Figure 1-2An adhesive aerogel insulation sleeve for a corrugated pipe in a thermal pipeline includes an upper ring sleeve 1, a lower ring sleeve 2, and an insulation cover disposed between the upper ring sleeve 1 and the lower ring sleeve 2. The insulation cover includes an inner protective layer 3 and an outer protective layer 4 disposed on its inner and outer walls, an inner protective layer 5 and an outer protective layer 6 disposed on the outer walls of the inner protective layer 3 and the outer protective layer 4, and an insulation layer 7 disposed between the inner protective layer 3 and the outer protective layer 4. The upper ring sleeve 1 and the lower ring sleeve 2 are respectively sewn to the upper and lower walls of the insulation cover by stitching.

[0039] In use, both the upper ring 1 and the lower ring 2 are rings with a pleated structure, similar to a folding fan, composed of multiple pleated units connected in sequence to form a ring. Each pleated unit has a certain width and depth, allowing the upper ring 1 and the lower ring 2 to be easily unfolded or bent. When the insulation sleeve needs to be installed, the pleated upper ring 1 and the lower ring 2 are unfolded so that they can be easily fitted onto the corresponding position of the corrugated pipe of the heating pipeline; when not in use or needing to be transported, the upper ring 1 and the lower ring 2 are bent to reduce their space occupation, facilitating storage and handling.

[0040] Alternatively, an elastic corrugated structure or segmented assembly can be used, or any feasible technical means can be employed.

[0041] Both the upper ring 1 and the lower ring 2 have an opening 8 on one side that penetrates their upper and lower walls. The two ends of the opening 8 are connected to form a ring by means of snaps or bolts. During installation, the upper ring 1 and the lower ring 2 are fitted onto the pipe through the opening 8. Both the upper ring 1 and the lower ring 2 have several flange openings 9 along their circumference. The number and position of the flange openings 9 are determined according to actual usage requirements, so that they can be fitted and fixed with the flange openings at the corrugated pipe connection ends of the thermal pipeline.

[0042] In use, both the inner protective layer 3 and the outer protective layer 4 are made of silicone high-temperature coated cloth. The silicone high-temperature coated cloth has good high-temperature resistance, corrosion resistance and flexibility, and can withstand the high temperature generated by the heat pipe, while protecting the inner insulation layer 7 from the erosion of the external environment;

[0043] The inner protective layer 5 and the outer protective layer 6 are connected to the inner protective layer 3 and the outer protective layer 4 respectively. The inner protective layer 5 and the outer protective layer 6 can be made of materials such as fiberglass cloth. Their main function is to enhance the overall strength of the heat insulation cover, prevent the inner protective layer 3 and the outer protective layer 4 from being damaged, and at the same time play a certain role in heat insulation.

[0044] The insulation layer 7 uses aerogel felt, which has an extremely low thermal conductivity and can effectively prevent heat transfer, greatly improving the insulation effect of the insulation jacket. Aerogel felt also has the advantages of being lightweight and soft, making it easy to process and install.

[0045] One side of the heat insulation cover is also provided with an opening 8 that runs through its upper and lower walls. The heat insulation cover forms a ring by connecting the two ends of the opening. The opening ends are sealed by overlapping. Specifically, one end of the opening is covered over the other end, and then sealed by adhesive or sealing strips to ensure that the inside of the heat insulation cover is isolated from the external environment, preventing heat loss and external moisture, dust and other substances from entering the inside of the heat insulation cover.

[0046] The upper ring 1 and the lower ring 2 are sewn to the upper and lower walls of the heat insulation cover respectively by a sewing thread, which is made of steel wire.

[0047] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0048] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0049] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An adhesive aerogel insulation sleeve for corrugated pipes used in thermal pipelines, characterized in that: It includes an upper ring sleeve (1), a lower ring sleeve (2), and a heat insulation cover disposed between the upper ring sleeve (1) and the lower ring sleeve (2); The heat insulation cover includes an inner protective layer (3) and an outer protective layer (4) serving as its inner and outer walls, an inner protective layer (5) and an outer protective layer (6) respectively connected to the inner protective layer (3) and the outer protective layer (4), and a heat insulation layer (7) disposed between the inner protective layer (3) and the outer protective layer (4); The upper ring (1) and the lower ring (2) are respectively sewn to the upper and lower walls of the heat insulation cover by stitching.

2. The adhesive aerogel insulation sleeve for corrugated pipes in thermal pipelines according to claim 1, characterized in that: Both the inner protective layer (3) and the outer protective layer (4) are silicone high-temperature coated fabrics.

3. The adhesive aerogel insulation sleeve for corrugated pipes in thermal pipelines according to claim 1, characterized in that: The insulation layer (7) is an aerogel felt.

4. The adhesive aerogel insulation sleeve for corrugated pipes in thermal pipelines according to claim 1, characterized in that: The upper ring (1), the lower ring (2) and the heat insulation cover are all provided with an opening (8) that penetrates the upper and lower walls on one side; The upper ring (1), lower ring (2) and heat insulation cover are all connected at both ends of their openings to form a ring; When the two ends of the opening of the heat insulation cover are connected to form a ring, the opening ends overlap and seal.

5. The adhesive aerogel insulation sleeve for corrugated pipes in thermal pipelines according to claim 1, characterized in that: The suture is a steel wire suture.

6. The adhesive aerogel insulation sleeve for corrugated pipes in thermal pipelines according to claim 1, characterized in that: Both the upper ring sleeve (1) and the lower ring sleeve (2) have several flange openings (9) along their circumference.