Prefabricated aerogel thermal insulation pipe

Abstract

The utility model discloses a prefabricated aerogel thermal insulation pipe which comprises a pipe body, an aerogel thermal insulation layer is arranged on the peripheral wall of the pipe body, two protective shells with semi-arc-shaped sections are symmetrically arranged on the outer portion of the aerogel thermal insulation layer, the ends of the two protective shells are respectively and jointly provided with a connecting end cover, and the connecting end cover is connected with the aerogel thermal insulation layer. An inserting ring groove is formed in the middle of each connecting end cover, the inserting ring grooves are matched with the ends of the two protective shells in an inserting mode, and each connecting end cover is fixedly connected with the two protective shells through a plurality of connecting bolts evenly arranged along the inner circumferential wall of the connecting end cover. On one hand, the whole aerogel thermal insulation pipe can be directly installed and used during construction, and the construction efficiency can be improved; and in addition, the protective shell and the connecting end cover can achieve the effective protection effect on the aerogel heat preservation layer, and the service life of the aerogel heat preservation pipe can be effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation pipe technology, and in particular to a prefabricated aerogel thermal insulation pipe. Background Technology

[0002] With the rapid development of industries such as petroleum, chemical, and urban heating and refrigeration, the requirements for thermal insulation performance in pipeline transportation systems are increasing. Traditional insulated pipelines typically use materials such as polyurethane, rock wool, or glass wool, but these materials suffer from problems such as high thermal conductivity, insufficient temperature resistance, and susceptibility to moisture absorption and aging. Especially in high or low temperature environments, the insulation effect decreases significantly, leading to high energy consumption and maintenance costs. In recent years, aerogel materials have become an ideal new type of thermal insulation material due to their extremely low thermal conductivity (typically below 0.02 W / (m·K)), excellent temperature resistance (-200℃ to 1000℃), and hydrophobic properties. However, the application of existing aerogels in pipelines still faces the following technical challenges: traditional aerogel insulated pipes generally require spraying or wrapping the aerogel insulation layer on-site, a cumbersome process that affects construction progress. In addition, the aerogel composite material in existing aerogel insulation pipes is prone to damage or delamination during long-term use and under vibration or temperature difference changes. Although existing technologies can wrap the aerogel insulation layer with a metal shell to achieve a protective effect, the metal shell may still detach from the insulation layer. Therefore, a prefabricated aerogel insulation pipe is being developed. Utility Model Content

[0003] The purpose of this invention is to provide a prefabricated aerogel insulation pipe to solve the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a prefabricated aerogel insulation pipe, comprising a pipe body, an aerogel insulation layer disposed on the outer peripheral wall of the pipe body, and two protective shells with semi-circular cross-sections symmetrically disposed on the outside of the aerogel insulation layer. The ends of the two protective shells are respectively provided with connecting end caps, and each connecting end cap has an insertion ring groove in the middle, which is inserted into the ends of the two protective shells. Each connecting end cap is fixedly connected to the two protective shells by a plurality of connecting bolts evenly disposed along its inner peripheral wall.

[0006] Furthermore, each of the protective housings has an anti-corrosion coating applied to its outer peripheral wall.

[0007] Furthermore, multiple support columns are evenly arranged on the inner peripheral wall of each of the protective shells, and the free end of each support column is a sharp structure. A connecting bracket that is inserted and engaged with the support column is fixedly arranged on the outer peripheral wall of the tube at a position corresponding to each of the support columns.

[0008] Furthermore, the mating ends of the two protective shells are respectively provided with sealing grooves along the length direction, and a sealing strip is provided between the two mating sealing grooves.

[0009] Furthermore, a limiting ring is fixedly provided at the inner end of the inner peripheral wall of each of the connecting end caps, and the two limiting rings of the two connecting end caps respectively abut against the two ends of the aerogel insulation layer.

[0010] Furthermore, a sealing sleeve is fixedly provided at the outer end of the inner peripheral wall of the limiting ring, and the sealing sleeve is sleeved on the outer peripheral wall of the tube body.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0012] This invention involves wrapping an aerogel insulation layer around the outside of the tube body, and then symmetrically installing two semi-circular protective shells on the outer periphery of the aerogel insulation layer using a prefabrication method. These protective shells are then fixed in place by connecting end caps. This design allows for direct installation and use of the entire aerogel insulation tube during construction, improving construction efficiency. Furthermore, the protective shells and connecting end caps effectively protect the aerogel insulation layer, preventing damage and detachment during transport and long-term use. Sealing strips and sleeves enhance the sealing performance of the entire insulation tube, and multiple support columns and corresponding connecting brackets ensure the structural strength of the entire insulation tube. In summary, this invention effectively extends the service life of the aerogel insulation tube. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled state of this utility model;

[0016] Figure 3 This is a schematic diagram of the transverse cross-section of the present invention;

[0017] Figure 4 This is a longitudinal cross-sectional view of the present invention;

[0018] Figure 5 This is a sectional view of the connecting end cap of this utility model;

[0019] Explanation of reference numerals in the attached drawings: 1. Tube body; 2. Aerogel insulation layer; 3. Protective outer shell; 3-1. Sealing groove; 4. Sealing strip; 5. Connecting end cap; 5-1. Insertion ring groove; 5-2. Limiting ring; 5-3. Sealing sleeve; 6. Connecting bolt; 7. Support column; 8. Connecting bracket. Detailed Implementation

[0020] like Figures 1-5 As shown, a prefabricated aerogel insulation pipe includes a metal pipe body 1, an aerogel insulation layer 2 wrapped around the outer peripheral wall of the pipe body 1, and two protective shells 3 with semi-circular cross-sections symmetrically arranged on the outside of the aerogel insulation layer 2.

[0021] Each of the protective housings 3 has an anti-corrosion coating sprayed on its outer peripheral wall to improve its service life. Additionally, sealing grooves 3-1 are formed along the length of each of the two protective housings 3 at their joint ends, and a sealing strip 4 is provided between the two jointed sealing grooves 3-1. By providing a sealing strip 4 that matches the sealing grooves 3-1 at the connection point of the two protective housings 3, the sealing performance of the joined protective housings 3 can be improved.

[0022] Each of the two protective outer shells 3 has a common connecting end cap 5 at its end. Each connecting end cap 5 has a groove 5-1 in its center, which engages with the ends of the two protective outer shells 3. Each connecting end cap 5 is fixedly connected to the two protective outer shells 3 by multiple connecting bolts 6 evenly arranged along its inner circumferential wall, thus achieving a fixed connection between the two protective outer shells 3. A limiting ring 5-2 is fixedly provided at the inner end of the inner circumferential wall of each connecting end cap 5. The two limiting rings 5-2 of the two connecting end caps 5 abut against both ends of the aerogel insulation layer 2, thereby limiting the aerogel insulation layer 2 and preventing misalignment or detachment. A sealing sleeve 5-3 is fixedly provided at the outer end of the inner circumferential wall of the limiting ring 5-2. The sealing sleeve 5-3 is fitted onto the outer circumferential wall of the tube body 1, improving the sealing performance of the connection between the two connecting end caps 5 and the tube body 1.

[0023] In addition, in this embodiment, a plurality of support columns 7 are uniformly arranged on the inner peripheral wall of each of the protective shells 3. The free end of each support column 7 is a sharp structure. The outer peripheral wall of the tube body 1 is fixedly provided with a connecting bracket 8 at a position corresponding to each support column 7, which is inserted and cooperates with the support column 7. By inserting and cooperating the plurality of support columns 7 with the corresponding connecting brackets 8, radial support is achieved between the tube body and the protective shell, which can effectively improve the structural strength of the entire insulation tube and reduce the occurrence of deformation of the insulation tube.

[0024] This invention involves wrapping an aerogel insulation layer around the outside of the tube body, and then symmetrically installing two semi-circular protective shells on the outer periphery of the aerogel insulation layer using a prefabrication method. These protective shells are then fixed in place by connecting end caps. This design allows for direct installation and use of the entire aerogel insulation tube during construction, improving construction efficiency. Furthermore, the protective shells and connecting end caps effectively protect the aerogel insulation layer, preventing damage and detachment during transport and long-term use. Sealing strips and sleeves enhance the sealing performance of the entire insulation tube, and multiple support columns and corresponding connecting brackets ensure the structural strength of the entire insulation tube. In summary, this invention effectively extends the service life of the aerogel insulation tube.

[0025] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A prefabricated aerogel insulation pipe, characterized in that: The device includes a tube body, on the outer peripheral wall of which an aerogel insulation layer is provided. Two protective shells with semi-circular cross-sections are symmetrically arranged outside the aerogel insulation layer. Each of the two protective shells has a common connecting end cap at its end. Each connecting end cap has an insertion ring groove in the middle, which is inserted into the end of the two protective shells. Each connecting end cap is fixedly connected to the two protective shells by a plurality of connecting bolts evenly arranged along its inner peripheral wall.

2. The prefabricated aerogel insulation pipe according to claim 1, characterized in that: Each of the protective housings has an anti-corrosion coating applied to its outer peripheral wall.

3. The prefabricated aerogel insulation pipe according to claim 1, characterized in that: Multiple support columns are evenly arranged on the inner peripheral wall of each of the protective shells. The free end of each support column is a sharp structure. A connecting bracket that is inserted into and cooperates with the support column is fixedly arranged on the outer peripheral wall of the tube at a position corresponding to each support column.

4. The prefabricated aerogel insulation pipe according to claim 1, characterized in that: The two protective shells have sealing grooves along their length at their mating ends, and a sealing strip is provided between the two sealing grooves.

5. The prefabricated aerogel insulation pipe according to claim 1, characterized in that: A limiting ring is fixedly provided at the inner end of the inner peripheral wall of each of the connecting end caps, and the two limiting rings of the two connecting end caps respectively abut against the two ends of the aerogel insulation layer.

6. The prefabricated aerogel insulation pipe according to claim 5, characterized in that: A sealing sleeve is fixedly provided at the outer end of the inner peripheral wall of the limiting ring, and the sealing sleeve is sleeved on the outer peripheral wall of the tube body.

Images