Aerogel packaging and its electrical heating insulation device for pipelines

Abstract

An aerogel package comprising an aerogel (10) and a sealed bag (20) encasing the aerogel (10), the sealed bag (20) having a thickness (21), a cladding side (22), a back side (23), and an interior space (24), and the aerogel (10) is located in the interior space (24), the sealed bag (20) being provided with a plurality of hot-pressing edges (25), each hot-pressing edge (25) having a protrusion length (26), the protrusion length (26) being greater than twice the thickness (21), whereby each hot-pressing edge (25) can be folded back and abut against the back side (23), the interior space (24) being in a vacuum state.

Description

Field of the invention

[0001] The present invention relates to an aerogel package and, more particularly, to an aerogel package and its electrical heating insulation device for pipelines, which discloses an innovative structure. State of the art

[0002] In the practical implementation of manufacturing processes, it is often necessary to transport high-temperature fluids through pipelines. It must be ensured that the temperature of the fluid is kept constant within a certain range during the transport process.

[0003] For this purpose, the relevant industry usually coats the pipes with thermal insulation material to achieve the thermal insulation effect.

[0004] Among the thermal insulation materials currently being tested by the relevant industry, aerogel is considered the most effective. Aerogel is a material whose density, according to current knowledge, is only higher than that of pure carbon aerogel. It is produced by replacing the liquid contained in a gel with a gas. Aerogel is an excellent thermal insulator because it can virtually block heat transfer caused by three heat transfer methods: conduction, convection, and radiation.

[0005] When aerogel is used as a pipe wrapping material, due to its weakness and tendency to break and pulverize, the relevant industry usually needs to additionally seal the aerogel in a sealed bag to prevent the aerogel from being directly exposed to the outside world, increasing the risk of breakage. Although a sealed bag is currently used in the relevant industry to package the aerogel, and its edges are tightly sealed by sewing or heat sealing, practical application shows that these conventional structures have certain shortcomings. For example, because the sealed edge of a conventional sealed bag is not very tight, when the aerogel inside is subjected to large deformation or pressure, broken fine dust will leak out from the weaker areas of the sealed edge, thereby polluting the surrounding air and the environment.This is indeed an important technical problem that deserves further attention and research by the relevant industry. Object of the invention

[0006] The main objective of the present invention is to provide an aerogel package and its electrical heating insulation device for pipelines. The technical problem to be solved is how to develop a novel, more optimal and practical structure of the aerogel package.

[0007] To achieve the above object, the present invention provides an aerogel package and its electrical heating insulation device for piping. The aerogel package comprises: an aerogel and a sealed bag covering the aerogel, wherein the sealed bag has a thickness, a covering side, a back side, and an interior, and the aerogel is located in the interior; wherein the sealed bag is provided with a plurality of hot-pressing edges, and each hot-pressing edge has a protrusion length, and the protrusion length is greater than twice the thickness, whereby each hot-pressing edge can be folded back and abutted against the back side, the interior being in a vacuum state.

[0008] It is a further object of the present invention to provide an electrical heating insulation device for pipelines, the electrical heating insulation device for pipelines being specifically designed to encase an existing heat-insulating conveying pipe and comprising an inner layer, an outer layer, and a hollow intermediate layer disposed between the inner layer and the outer layer, the inner layer being designed to abut the heat-insulating conveying pipe, and the hollow intermediate layer accommodating an electric heating plate and the aerogel package in order from the inside to the outside.

[0009] Compared with the conventional technology, the present invention can provide an innovative aerogel package and its electrical heating insulation device for pipelines through the innovative and unique design. The main features of the invention are that each hot-pressing edge has a protrusion length greater than twice the thickness, which allows each hot-pressing edge to be folded back and abut against the back surface. Furthermore, the internal space is in a vacuum state. In this way, the tightness, compactness, stability, and pressure resistance of the aerogel package can be effectively improved, and leakage of the aerogel and the resulting contamination during use can be reliably prevented. The invention is indeed practical and advanced, offering better advantages for industrial use.

[0010] A still further object of the present invention is to provide an additional side of the sealed bag with better airtightness by another technical feature that the sealed bag further has a fold-back edge and the side opposite to the fold-back edge and two adjacent sides form the hot-pressing edges, whereby a hot-pressing process for the hot-pressing edges can be saved in the manufacturing process, thus achieving the advantageous effects and industrial applicability of the present invention.

[0011] A still further object of the present invention is that by a still further technical feature that the sealed bag has a rectangular contour and thus a long side and a short side are provided, the protruding length of each hot-pressing edge is greater than twice the thickness and greater than half the length of the short side, and the protruding length is greater than half the length of the short side, the hot-pressing edges 25 can abut against a sufficiently large area of the back surface after folding, thereby achieving a better air-sealing effect, thus achieving the advantageous effects and industrial applicability of the present invention. Brief description of the drawings Fig. 1 shows a perspective view of a preferred embodiment of the electrical heating insulation device for pipelines according to the invention; Fig. 2 shows an exploded perspective view of the preferred embodiment of the electrical heating insulation device for pipelines according to the invention; Fig. 3 shows a sectional view of the preferred embodiment of the electrical heating insulation device for pipelines according to the invention; Fig. Figure 4 shows a first schematic view of the forming steps of a preferred embodiment of the aerogel packaging according to the invention; Fig. Figure 5 shows a second schematic view of the forming steps of the preferred embodiment of the aerogel package according to the invention; Fig. Figure 6 shows a third schematic view of the forming steps of the preferred embodiment of the aerogel package according to the invention; Fig. Figure 7 shows a fourth schematic view of the forming steps of the preferred embodiment of the aerogel package according to the invention; Fig. Figure 8 shows a view of an embodiment according to the present invention in which several aerogel packages are arranged side by side in the hollow intermediate layer. Detailed description of the implementation examples

[0012] It will be on the Fig. 1 to 7, which show a preferred embodiment of the aerogel packaging according to the invention and its electrical heating insulation device for pipelines. The following description illustrates only one embodiment of the invention and is not intended to limit the claims.

[0013] The aerogel package P comprises an aerogel 10 and a sealed bag 20 encasing the aerogel 10, wherein the sealed bag 20 has a thickness 21, a cladding side 22, a back side 23, and an interior space 24, and the aerogel 10 is located in the interior space 24. Here, the sealed bag 20 is provided with a plurality of hot-pressing edges 25, each hot-pressing edge 25 having a protrusion length 26, and the protrusion length 26 is greater than twice the thickness 21, whereby each hot-pressing edge 25 can be folded back and abutted against the back side 23, wherein the interior space 24 is in a vacuum state.

[0014] It will be Fig. 6. In the present embodiment, the sealed bag 20 further comprises a fold-back edge 27, wherein the side facing away from the fold-back edge 27 and two adjacent sides form the hot-pressing edges 25. The purpose of the arrangement of the fold-back edge 27 in the present embodiment is primarily to create an additional side of the sealed bag 20 with better airtightness, since it has no seams and press seams. Furthermore, a hot-pressing process for the hot-pressing edges 25 can be eliminated in the manufacturing process.

[0015] It will be Fig. 6. In the present embodiment, the sealed bag 20 has a rectangular contour, thereby defining a long side 28 and a short side 29, wherein the overhang length 26 of each hot-pressing edge 25 is greater than twice the thickness 21 and greater than half the length of the short side 29. The advantage of the shape according to the present embodiment is that the overhang length 26 is greater than half the length of the short side 29 and the hot-pressing edges 25 can abut a sufficiently large area of the back side 23 after folding, thus achieving a better air-sealing effect.

[0016] Here, the sealed bag 20 is made of one of the following materials: polytetrafluoroethylene film, polyimide film, polyethylene film, and polypropylene film. These materials generally have sealing properties, high lubricity and non-stick properties, electrical insulation, good aging resistance, and excellent temperature resistance (they can be used for long periods at temperatures between +250°C and -180°C). Among them, polytetrafluoroethylene has no toxic effects on the human body.

[0017] It will be on the Fig. 1 to 3. The present invention further provides an electrical heating insulation device for pipelines 30, which is specifically designed to enclose an existing heat-insulating conveying pipe 40 and comprises an inner layer 31, an outer layer 32, and a hollow intermediate layer 33 disposed between the inner layer 31 and the outer layer 32, wherein the inner layer 31 serves to abut against the heat-insulating conveying pipe 40, and the hollow intermediate layer 33 accommodates, in order from the inside to the outside, an electric heating plate 50 and the aerogel package P described above (note: the structure of which is therefore not reproduced here).

[0018] It will be Fig. 3. In the present embodiment, the hot-pressing edges 25 provided on the sealed bag 20 of the aerogel package P are folded back and rest against the rear side 23 and are located on the side facing away from the electric heating plate 50.

[0019] The aerogel packaging P located in the hollow intermediate layer 33 can be used either in a single configuration (cf. Fig. 3) or in a side-by-side multiple configuration (cf. Fig. 8) may be arranged.

[0020] According to the structure and technical features described above, the concrete steps for producing the aerogel packaging P according to the invention are described in the Fig. 4 to 7. First, the sealed bag 20 is laid flat on a heating platform 60, then the aerogel 10 is placed on the sealed bag 20, then the sealed bag 20 is folded in half to form a fold-back edge 27 (as shown in Fig. 4), then the hot-press edges 25 are formed one after the other (as shown in Fig. 5), whereby before pressing the last hot-press edge 25, the interior 24 is evacuated by means of a vacuum tube 70 (as shown in the Fig. 5 and Fig. 7). After completion of all hot-press edges 25, they are folded back and lie against the back side 23 (as shown in Fig.6). In this way, the forming of the aerogel package P is completed. The main features of the aerogel package P according to the invention are that each hot-pressing edge 25 has a protrusion length 26 greater than twice the thickness 21, whereby each hot-pressing edge 25 can be folded back and abutted against the back surface 23. Furthermore, the inner space 24 is in a vacuum state. In this way, the tightness, compactness, stability, and pressure resistance of the aerogel package P can be improved. Even if a pressure increase occurs inside the aerogel package P, the hot-pressing edges 25 can absorb the resulting pressure by folding back along the thickness 21 of the sealed bag 20 because the hot-pressing edges 25 are folded back and abutted against the back surface 23.Therefore, harmful tension cannot easily occur at the hot-press edges 25, which reliably prevents leakage of the aerogel 10 and the resulting contamination during use.

[0021] The present invention thus provides an aerogel package and its electrical heating insulation device for pipelines. The main features of the aerogel package are that it comprises an aerogel and a sealed bag covering the aerogel, the sealed bag having a thickness, a covering side, a back side, and an interior space, and the aerogel is located in the interior space. The sealed bag is provided with a plurality of hot-pressing edges, each hot-pressing edge having a protrusion length, and the protrusion length is greater than twice the thickness, whereby each hot-pressing edge can be folded back and abutted against the back side, the interior space being in a vacuum state.

Claims

[1] An aerogel package comprising an aerogel (10) and a sealed bag (20) encasing the aerogel (10), the sealed bag (20) having a thickness (21), a cladding side (22), a back side (23), and an interior space (24), and the aerogel (10) is located in the interior space (24), the sealed bag (20) being provided with a plurality of hot-pressing edges (25), each hot-pressing edge (25) having a protrusion length (26), the protrusion length (26) being greater than twice the thickness (21), whereby each hot-pressing edge (25) can be folded back and abut against the back side (23), the interior space (24) being in a vacuum state. [2] Aerogel packaging according to claim 1, wherein the sealed bag (20) further comprises a fold-back edge (27), the side facing away from the fold-back edge (27) and two adjacent sides forming the hot-press edges (25). [3] The aerogel package of claim 1, wherein the sealed bag (20) has a rectangular contour defining a long side (28) and a short side (29), the overhang length (26) of each hot-press edge (25) being greater than twice the thickness (21) and greater than half the length of the short side (29). [4] The aerogel package of claim 1, wherein the sealed bag (20) is made of one of the following materials: polytetrafluoroethylene film, polyimide film, polyethylene film, and polypropylene film. [5] An electrical heating insulation device for pipelines, the electrical heating insulation device for pipelines (30) being specifically designed to enclose an existing heat-insulating conveying line (40) and comprising an inner layer (31), an outer layer (32) and a hollow intermediate layer (33) disposed between the inner layer (31) and the outer layer (32), the inner layer (31) being designed to bear against the heat-insulating conveying line (40), and the hollow intermediate layer (33) accommodating, in order from the inside to the outside, an electrical heating plate (50) and the aerogel package (P) according to any one of claims 1 to 4. [6] An electric heating insulation device for pipelines according to claim 5, wherein the hot-pressing edges (25) provided on the sealed bag (20) are folded back and abut against the back side (23) and are located on the side facing away from the electric heating plate (50).

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