CN218494442U - Novel LNG pipeline elbow aerogel blanket heat insulation and preservation system - Google Patents
Novel LNG pipeline elbow aerogel blanket heat insulation and preservation system Download PDFInfo
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- CN218494442U CN218494442U CN202221984588.5U CN202221984588U CN218494442U CN 218494442 U CN218494442 U CN 218494442U CN 202221984588 U CN202221984588 U CN 202221984588U CN 218494442 U CN218494442 U CN 218494442U
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Abstract
The utility model relates to a novel LNG pipeline elbow aerogel blanket thermal insulation system, include the adiabatic heat preservation subsystem of elbow and be located the adiabatic heat preservation subsystem of straight tube section of the adiabatic heat preservation subsystem both sides of elbow, the adiabatic heat preservation subsystem of elbow includes from interior to exterior in proper order the cladding in the inlayer shrimp joint form aerogel blanket in the LNG pipeline outside, middle level shrimp joint form aerogel blanket, aluminium foil, outer shrimp joint form aerogel blanket, PAP aluminium foil and metal outer jacket. Compared with the prior art, the utility model adopts aerogel as the heat insulation material, thereby greatly reducing the loss of the cooling capacity of the pipeline elbow and having better energy-saving benefit; the elbow part adopts the shrimp-shaped aerogel blanket, so that the gaps among all layers of aerogel blankets can be reduced, and the overall structure has good heat insulation effect.
Description
Technical Field
The utility model belongs to the technical field of the heat preservation pipeline and specifically relates to a novel LNG pipeline elbow aerogel blanket thermal insulation system is related to.
Background
Liquefied Natural Gas (LNG) is the most clean fossil energy on earth, is colorless, tasteless, nontoxic and noncorrosive, has a large heat value, and has very little pollution to air after combustion, so that the LNG is an advanced energy source. The manufacturing process comprises the steps of firstly purifying natural gas produced in a gas field, and after a series of ultra-low temperature liquefaction, conveying the natural gas by using an LNG (liquefied natural gas) transmission pipeline or an LNG transport ship.
On the heat-insulating conveying pipeline, pipeline heat insulation is a very important link, and whether the link succeeds or not is directly related to whether the pipeline can be put into use formally or not. At present, the elbow of the LNG transmission pipeline is mainly insulated by adopting Polyurethane (PUR), polyisocyanurate (PIR) and other insulation materials. The thermal insulation performance of the materials is far lower than that of aerogel, and in order to achieve a certain thermal insulation effect, the thickness of the pipe shell must be increased, which not only brings inconvenience to construction, but also increases production cost. Traditional LNG pipeline elbow keeps warm because the pipeline deviation leads to hardly laminating good with prefabricated insulation material, appears the gap, direct influence heat preservation effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a there is traditional LNG pipeline elbow heat preservation because the pipeline deviation leads to hardly laminating good with prefabricated insulation material in order to overcome above-mentioned prior art, appears the gap, directly influences the defect of heat preservation effect and provides a novel LNG pipeline elbow aerogel blanket thermal insulation system.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a novel LNG pipeline elbow aerogel blanket thermal insulation system, includes the adiabatic heat preservation subsystem of elbow and is located the adiabatic heat preservation subsystem of straight tube section of the adiabatic heat preservation subsystem both sides of elbow, the adiabatic heat preservation subsystem of elbow includes that interior shrimp joint form aerogel blanket, middle level shrimp joint form aerogel blanket, aluminium foil, outer shrimp joint form aerogel blanket, PAP aluminium foil and the metal outer guard of cladding in proper order outside the LNG pipeline from interior to exterior.
Further, the inner layer shrimp joint-shaped aerogel blanket, the middle layer shrimp joint-shaped aerogel blanket and the outer layer shrimp joint-shaped aerogel blanket are all shrimp joint-shaped aerogel blankets, the shrimp joint-shaped aerogel blankets are of rectangular structures, and the outer sides of the LNG pipelines are wrapped by the shrimp joint-shaped aerogel blankets.
Further, two ends of the shrimp-shaped aerogel blanket coated on the LNG pipeline are close to each other to form a seam; the inner layer shrimp joint-shaped aerogel blanket forms an inner layer shrimp joint-shaped aerogel blanket seam, the middle layer shrimp joint-shaped aerogel blanket forms an intermediate layer shrimp joint-shaped aerogel blanket seam, and the outer layer shrimp joint-shaped aerogel blanket forms an outer layer shrimp joint-shaped aerogel blanket seam; the joint of the inner layer shrimp joint-shaped aerogel blanket, the joint of the middle layer shrimp joint-shaped aerogel blanket and the joint of the outer layer shrimp joint-shaped aerogel blanket are distributed in a pairwise crossing manner.
Further, the middle part of the shrimp-shaped aerogel blanket is provided with a plurality of through holes along the width direction of the LNG pipeline, and the width of the through holes gradually decreases from the middle part to two sides in the width direction of the LNG pipeline.
Further, the through hole is in the shape of a diamond, and the long axis direction of the diamond is parallel to the width direction of the LNG pipeline.
Furthermore, the shrimp-shaped aerogel blanket is divided into a plurality of sub-aerogel blankets along the length direction of the LNG pipeline, each sub-aerogel blanket is sequentially coated on the outer side of the LNG pipeline, and two adjacent sub-aerogel blankets are mutually lapped.
Further, the straight pipe section heat insulation subsystem comprises a straight pipe section inner layer aerogel blanket, a straight pipe section middle layer aerogel blanket, an aluminum foil, a straight pipe section outer layer aerogel blanket, a PAP aluminum foil and a metal outer protector which are sequentially coated on the outer side of the LNG pipeline from inside to outside.
Further, the straight pipe section inner layer aerogel blanket and the inner layer shrimp-joint-shaped aerogel blanket are mutually crossed, wrapped and connected, the straight pipe section middle layer aerogel blanket and the middle layer shrimp-joint-shaped aerogel blanket are mutually crossed, wrapped and connected, and the straight pipe section outer layer aerogel blanket and the outer layer shrimp-joint-shaped aerogel blanket are mutually crossed, wrapped and connected.
Further, the outer metal jacket is an aluminum plate or a stainless steel plate.
Furthermore, the inner layer shrimp joint-shaped aerogel blanket, the middle layer shrimp joint-shaped aerogel blanket and the outer layer shrimp joint-shaped aerogel blanket are all made of soft aerogel.
Compared with the prior art, the utility model has the advantages of it is following:
(1) Aerogel thermal insulation performance is superior to traditional polyurethane and other insulation material far away, adopts the aerogel as LNG pipeline elbow insulation material, can increase substantially pipeline elbow cold volume loss, has better energy-conserving benefit.
(2) The utility model discloses the elbow position adopts shrimp joint form aerogel blanket, can reduce the gap between every layer of aerogel blanket, and each layer shrimp joint form aerogel blanket gap does not run through whole heat preservation, and simultaneously, elbow shrimp joint form aerogel blanket and straight tube section aerogel blanket also are alternately the parcel on the LNG pipeline, have avoided "heat bridge" problem effectively, and cold energy loss is littleer, and the heat preservation effect is better.
Drawings
Fig. 1 is a schematic external structural view of a novel LNG pipeline elbow aerogel blanket thermal insulation system provided in an embodiment of the present invention;
fig. 2 is a cross-sectional view of a novel LNG pipeline elbow aerogel blanket thermal insulation system provided in an embodiment of the present invention;
fig. 3 is a schematic view of an expanded structure of a shrimp-shaped aerogel blanket provided in an embodiment of the present invention;
fig. 4 is a schematic view of the seam distribution of a shrimp-shaped aerogel blanket according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a seam distribution of a shrimp-shaped aerogel blanket as provided in an embodiment of the present invention;
in the figure, 1, LNG pipeline, 2, straight pipe section inner layer aerogel blanket, 3, straight pipe section middle layer aerogel blanket, 4, aluminum foil, 5, straight pipe section outer layer aerogel blanket, 6, PAP aluminum foil, 7, metal outer protection, 8, inner layer shrimp joint aerogel blanket, 9, outer layer shrimp joint aerogel blanket joint, 10, middle layer shrimp joint aerogel blanket joint, 11, outer layer shrimp joint aerogel blanket, 12, inner layer shrimp joint aerogel blanket, 13, middle layer shrimp joint aerogel blanket.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
The embodiment provides a novel LNG pipeline elbow aerogel blanket heat insulation and heat preservation system, include the adiabatic heat preservation subsystem of elbow and the straight tube section heat insulation and heat preservation subsystem that is located the adiabatic heat preservation subsystem both sides of elbow, its characterized in that, the adiabatic heat preservation subsystem of elbow includes that from interior to exterior cladding is in proper order at the inlayer shrimp joint form aerogel blanket 12, the middle level shrimp joint form aerogel blanket 13, aluminium foil 4, outer shrimp joint form aerogel blanket 11, PAP aluminium foil 6 and the outer 7 of protecting of metal in the LNG pipeline 1 outside.
As shown in fig. 1, the straight pipe section heat insulation subsystem comprises a straight pipe section inner layer aerogel blanket 2, a straight pipe section middle layer aerogel blanket 3, an aluminum foil 4, a straight pipe section outer layer aerogel blanket 5, a PAP aluminum foil 6 and a metal outer protector 7 which are sequentially coated on the outer side of the LNG pipeline 1 from inside to outside.
The straight pipe section inner layer aerogel blanket 2 and the inner layer shrimp-shaped aerogel blanket 12 are mutually crossed, wrapped and connected, the straight pipe section middle layer aerogel blanket 3 and the middle layer shrimp-shaped aerogel blanket 13 are mutually crossed, wrapped and connected, and the straight pipe section outer layer aerogel blanket 5 and the outer layer shrimp-shaped aerogel blanket 11 are mutually crossed, wrapped and connected; can reduce the gap between every layer of gel blanket, each layer shrimp joint form aerogel blanket gap does not run through whole heat preservation, and simultaneously, elbow shrimp joint form aerogel blanket and straight tube section aerogel blanket also are alternately the parcel on the LNG pipeline, have avoided "hot bridge" problem effectively, and cold energy loss is littleer, and the heat preservation effect is better.
As shown in fig. 2 and 3, the inner layer shrimp-shaped aerogel blanket 12, the middle layer shrimp-shaped aerogel blanket 13 and the outer layer shrimp-shaped aerogel blanket 11 are all shrimp-shaped aerogel blankets, the shrimp-shaped aerogel blankets are rectangular structures, and the outer side of the LNG pipeline 1 is coated with the shrimp-shaped aerogel blankets.
As shown in fig. 4 and 5, the two ends of the shrimp-shaped aerogel blanket wrapped on the LNG pipeline 1 are close to each other and form a seam; the inner layer shrimp joint aerogel blanket 12 forms an inner layer shrimp joint aerogel blanket seam 8, the middle layer shrimp joint aerogel blanket 13 forms a middle layer shrimp joint aerogel blanket seam 10, and the outer layer shrimp joint aerogel blanket 11 forms an outer layer shrimp joint aerogel blanket seam 9; the inner layer shrimp joint-shaped aerogel blanket joint 8, the middle layer shrimp joint-shaped aerogel blanket joint 10 and the outer layer shrimp joint-shaped aerogel blanket joint 9 are distributed in a pairwise crossed mode, and joints among all layers of aerogels of the inner layer aerogel blanket joint 8, the middle layer shrimp joint-shaped aerogel blanket joint 10 and the outer layer shrimp joint-shaped aerogel blanket joint 9 do not penetrate through the whole heat-insulating layer.
The middle part of shrimp joint form aerogel blanket is equipped with a plurality of through-holes along 1 width direction of LNG pipeline, and the width of through-hole diminishes from the middle part to the ascending both sides of 1 width direction of LNG pipeline gradually.
Preferably, the through-hole has a diamond shape, and the long axis direction of the diamond shape is parallel to the width direction of the LNG pipeline 1.
The shrimp-shaped aerogel blanket is divided into a plurality of sub-aerogel blankets along the length direction of the LNG pipeline 1, each sub-aerogel blanket is sequentially wrapped on the outer side of the LNG pipeline 1, and two adjacent sub-aerogel blankets are mutually lapped.
The metal outer guard 7 is an aluminum plate or a stainless steel plate. In this embodiment, the LNG pipeline 1 is a steel pipe; the inner layer shrimp-shaped aerogel blanket 12, the middle layer shrimp-shaped aerogel blanket 13 and the outer layer shrimp-shaped aerogel blanket 11 are made of soft aerogel.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention by those skilled in the art should be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a novel LNG pipeline elbow aerogel blanket thermal insulation system, includes the adiabatic heat preservation subsystem of elbow and is located the adiabatic heat preservation subsystem of straight tube section of the adiabatic heat preservation subsystem both sides of elbow, its characterized in that, the adiabatic heat preservation subsystem of elbow includes that from interior to exterior cladding is in proper order at inner layer shrimp joint form aerogel blanket (12), middle level shrimp joint form aerogel blanket (13), aluminium foil (4), outer shrimp joint form aerogel blanket (11), PAP aluminium foil (6) and metal outer jacket (7) in LNG pipeline (1) outside.
2. The LNG pipeline elbow aerogel blanket thermal insulation system as claimed in claim 1, wherein the inner layer shrimp joint-shaped aerogel blanket (12), the middle layer shrimp joint-shaped aerogel blanket (13) and the outer layer shrimp joint-shaped aerogel blanket (11) are shrimp joint-shaped aerogel blankets, each of the shrimp joint-shaped aerogel blankets is of a rectangular structure, and the shrimp joint-shaped aerogel blankets are wrapped outside the LNG pipeline (1).
3. The novel LNG pipeline elbow aerogel blanket thermal insulation system is characterized in that two ends of the shrimp-shaped aerogel blanket coated on the LNG pipeline (1) are close to each other to form a seam; the inner shrimp-shaped aerogel blanket (12) forms an inner shrimp-shaped aerogel blanket seam (8), the middle shrimp-shaped aerogel blanket (13) forms a middle shrimp-shaped aerogel blanket seam (10), and the outer shrimp-shaped aerogel blanket (11) forms an outer shrimp-shaped aerogel blanket seam (9); the inner layer shrimp joint aerogel blanket joint (8), the middle layer shrimp joint aerogel blanket joint (10) and the outer layer shrimp joint aerogel blanket joint (9) are distributed in a pairwise crossing manner.
4. The LNG pipeline elbow aerogel blanket heat insulation and preservation system according to claim 2, wherein the middle part of the shrimp-shaped aerogel blanket is provided with a plurality of through holes along the width direction of the LNG pipeline (1), and the width of the through holes gradually decreases from the middle part to two sides of the width direction of the LNG pipeline (1).
5. Novel LNG pipeline elbow aerogel blanket thermal insulation system according to claim 4, characterized in that the shape of the through holes is a rhombus, the long axis direction of which is parallel to the width direction of the LNG pipeline (1).
6. The LNG pipeline elbow aerogel blanket heat insulation and preservation system according to claim 2, wherein the shrimp-shaped aerogel blanket is divided into a plurality of sub-aerogel blankets along the length direction of the LNG pipeline (1), each sub-aerogel blanket is sequentially covered on the outer side of the LNG pipeline (1), and two adjacent sub-aerogel blankets are mutually overlapped.
7. The LNG pipeline elbow aerogel blanket heat insulation and preservation system according to claim 1, wherein the straight pipe section heat insulation and preservation subsystem comprises a straight pipe section inner layer aerogel blanket (2), a straight pipe section middle layer aerogel blanket (3), an aluminum foil (4), a straight pipe section outer layer aerogel blanket (5), a PAP aluminum foil (6) and a metal outer sheath (7) which are sequentially coated on the outer side of the LNG pipeline (1) from inside to outside.
8. The LNG pipeline elbow aerogel blanket thermal insulation system is characterized in that the straight pipe section inner layer aerogel blanket (2) and the inner layer shrimp-shaped aerogel blanket (12) are mutually in cross wrapping connection, the straight pipe section middle layer aerogel blanket (3) and the middle layer shrimp-shaped aerogel blanket (13) are mutually in cross wrapping connection, and the straight pipe section outer layer aerogel blanket (5) and the outer layer shrimp-shaped aerogel blanket (11) are mutually in cross wrapping connection.
9. The novel LNG pipeline elbow aerogel blanket thermal insulation system as claimed in claim 1, wherein the outer metal shield (7) is an aluminum plate or a stainless steel plate.
10. The LNG pipeline elbow aerogel blanket heat insulation and preservation system as claimed in claim 1, wherein the inner layer shrimp-shaped aerogel blanket (12), the middle layer shrimp-shaped aerogel blanket (13) and the outer layer shrimp-shaped aerogel blanket (11) are made of soft aerogel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221984588.5U CN218494442U (en) | 2022-07-29 | 2022-07-29 | Novel LNG pipeline elbow aerogel blanket heat insulation and preservation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221984588.5U CN218494442U (en) | 2022-07-29 | 2022-07-29 | Novel LNG pipeline elbow aerogel blanket heat insulation and preservation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218494442U true CN218494442U (en) | 2023-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221984588.5U Active CN218494442U (en) | 2022-07-29 | 2022-07-29 | Novel LNG pipeline elbow aerogel blanket heat insulation and preservation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218494442U (en) |
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2022
- 2022-07-29 CN CN202221984588.5U patent/CN218494442U/en active Active
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