CN220249338U - A cold thermal insulation pipe shoes for LNG pipeline centre gripping - Google Patents
A cold thermal insulation pipe shoes for LNG pipeline centre gripping Download PDFInfo
- Publication number
- CN220249338U CN220249338U CN202321865436.8U CN202321865436U CN220249338U CN 220249338 U CN220249338 U CN 220249338U CN 202321865436 U CN202321865436 U CN 202321865436U CN 220249338 U CN220249338 U CN 220249338U
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- Prior art keywords
- heat
- lower bracket
- bracket
- insulating
- insulating part
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- 238000009413 insulation Methods 0.000 title claims description 21
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 23
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 23
- 238000004321 preservation Methods 0.000 claims description 35
- 230000006978 adaptation Effects 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000005030 aluminium foil Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model belongs to the technical field of heat-insulating pipe shoes, and particularly relates to a cold heat-insulating pipe shoe for clamping an LNG pipeline, which comprises a lower bracket and an upper bracket, wherein the bottom of the lower bracket is connected with a base, two limiting plates are oppositely arranged on the inner side of the lower bracket, a first heat-insulating part and a second heat-insulating part with the same structure and size are adaptively arranged on the inner sides of the lower bracket and the upper bracket between the two limiting plates, the second heat-insulating part consists of an outer shell, an inner framework and a hard polyurethane foam heat-insulating layer, and the lower bracket and the upper bracket are connected through bolt pieces. The inner framework can provide stable support for the hard polyurethane foam heat-insulating layer, so that the first heat-insulating part and the second heat-insulating part have an effective heat-insulating effect, and the limiting plate can ensure the stability of installation of the first heat-insulating part and the second heat-insulating part.
Description
Technical Field
The utility model belongs to the technical field of heat-insulating pipe shoes, and particularly relates to a cold heat-insulating pipe shoe for clamping an LNG pipeline.
Background
Natural gas is increasingly favored as a clean energy source. In recent years, along with the large-scale construction of domestic LNG acquisition platforms, the conveying distance of LNG pipelines is longer and longer, the main component of LNG is methane, the liquefied methane temperature is as low as-161 ℃, and in order to prevent the temperature rise and vaporization of liquid in the conveying process, it is important to ensure the cold heat preservation effect of the LNG pipelines along the way. However, in view of the increase in length of LNG pipelines, in order to ensure pipeline span safety, clamping and fixing of the pipelines are required after a certain distance, and cold insulation, clamping and fixing at the specific position become a great difficulty in field installation, and conventional cold insulation layers such as rubber-plastic cotton and hard polyurethane foam generally realize efficient heat insulation and heat preservation functions by utilizing self porous structures, so that heat preservation performance is greatly reduced after compression deformation, and heat preservation requirements on the positions of shoes cannot be met.
Disclosure of Invention
In view of the above problems, an object of the present utility model is to: the cold insulation pipe shoe for clamping the LNG pipeline solves the problem that the insulation performance of a conventional cold insulation layer is greatly reduced after being deformed under pressure, and the insulation requirement on the pipe shoe position cannot be met.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a cold thermal insulation pipe shoes for LNG pipeline centre gripping, includes lower carriage and last bracket, the bottom of lower carriage is connected with the base, the inboard of lower carriage is provided with two limiting plates relatively, the inboard adaptation of lower carriage and last bracket between two limiting plates installs heat preservation spare one and heat preservation spare two that the structure size is the same, heat preservation spare two comprises shell body, inner frame and stereoplasm polyurethane foam heat preservation, lower carriage and last bracket are connected through the bolt part.
The beneficial effects of the utility model are as follows: the inner framework can provide stable support for the hard polyurethane foam heat-insulating layer, so that the first heat-insulating part and the second heat-insulating part have an effective heat-insulating effect, and the limiting plate can ensure the stability of installation of the first heat-insulating part and the second heat-insulating part.
In order to ensure the structural strength of the first heat-insulating part and the second heat-insulating part;
as a further improvement of the above technical scheme: the inner framework is welded on the inner side of the outer shell, and the inner framework is of a honeycomb grid structure.
The beneficial effects of this improvement are: the inner framework structure is light and has large cavity gap, and can provide filling space for the hard polyurethane foam heat-insulating layer while playing an effective supporting role.
In order to effectively preserve the heat of the pipeline;
as a further improvement of the above technical scheme: the hard polyurethane foam heat-insulating layer is filled in the cavity of the inner framework.
The beneficial effects of this improvement are: the hard polyurethane foam heat-insulating layer can play a role in heat insulation and heat preservation under the support of the inner framework.
In order to effectively reduce the heat conduction effect of the inner framework;
as a further improvement of the above technical scheme: the horizontal distance between the end face of the hard polyurethane foam heat-insulating layer and the end face of the inner framework is 1-5 cm.
The beneficial effects of this improvement are: the end of the inner framework can be buried into the hard polyurethane foam heat-insulating layer, so that heat is prevented from being transferred to the outside through the two ends of the inner framework.
In order to effectively ensure the installation stability of the first heat-insulating part and the second heat-insulating part;
as a further improvement of the above technical scheme: the limiting plates are of fan-ring plate body structures, and the opposite end faces of the two limiting plates are connected with the end faces of the two ends of the first heat-insulating part and the two ends of the second heat-insulating part in a sliding mode.
The beneficial effects of this improvement are: the limiting plate plays a role in limiting the positions of the first axis and the second axis of the heat preservation piece.
In order to effectively ensure the heat preservation effect of the device;
as a further improvement of the above technical scheme: the top surface of limiting plate bonds has aluminium foil reflection stratum.
The beneficial effects of this improvement are: the aluminum foil reflecting layer plays a role in reflecting sunlight and reducing the surface temperature of the upper bracket under direct sunlight.
In order to ensure the tightness between the device and the pipeline heat-insulating layer;
as a further improvement of the above technical scheme: the horizontal distance between the end parts of the lower bracket and the upper bracket and the end surfaces of the two limiting plates, which are opposite, is not less than 5cm.
The beneficial effects of this improvement are: the lower bracket and the upper bracket can shade the connection part between the first heat preservation part and the second heat preservation part and the pipeline heat preservation layer, so that the temperature loss at the gap part is reduced.
None of the parts of the device are the same as or can be implemented using prior art.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a front cross-sectional view of the present utility model;
FIG. 4 is a schematic view of the structure of the lower bracket of the present utility model;
in the figure: 1. a lower bracket; 2. an upper bracket; 3. a base; 4. a bolt member; 5. a first heat preservation piece; 6. a second heat preservation piece; 61. an outer housing; 62. an inner skeleton; 63. a rigid polyurethane foam insulation layer; 7. a limiting plate; 8. an aluminum foil reflective layer.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
Example 1:
as shown in fig. 1-4: the utility model provides a cold insulation pipe shoe for LNG pipeline centre gripping, includes lower bracket 1 and upper bracket 2, the bottom of lower bracket 1 is connected with base 3, the inboard of lower bracket 1 is provided with two limiting plates 7 relatively, the inboard adaptation of lower bracket 1 and upper bracket 2 between two limiting plates 7 is installed and is constructed the identical heat preservation piece 5 of size and heat preservation piece two 6, heat preservation piece two 6 comprises shell body 61, inner skeleton 62 and stereoplasm polyurethane foam heat preservation 63, lower bracket 1 and upper bracket 2 are connected through bolt member 4, and inner skeleton 62 can provide stable support for stereoplasm polyurethane foam heat preservation 63, makes heat preservation piece one 5 and heat preservation piece two 6 play the effectual heat preservation effect, and limiting plates 7 can guarantee the stability of heat preservation piece one 5, heat preservation piece two 6 installation, inner skeleton 62 welds in the inboard of shell body 61, the inner framework 62 is of a honeycomb net frame structure, the inner framework 62 is light in structure and large in cavity gap, a filling space can be provided for the hard polyurethane foam heat-insulating layer 63 while an effective supporting function is achieved, the hard polyurethane foam heat-insulating layer 63 is filled in the cavity of the inner framework 62, the hard polyurethane foam heat-insulating layer 63 can play a role in heat insulation and heat preservation under the support of the inner framework 62, the horizontal distance between the end face of the hard polyurethane foam heat-insulating layer 63 and the end face of the inner framework 62 is 1-5 cm, the end part of the inner framework 62 can be embedded into the hard polyurethane foam heat-insulating layer 63, heat is prevented from being transferred to the outside through the two ends of the inner framework 62, the limiting plates 7 are of a fan-ring-shaped plate body structure, the two opposite end faces of the limiting plates 7 are connected with the end faces of the first heat-insulating part 5 and the two end faces of the second heat-insulating part 6 in a sliding mode, and the limiting plates 7 play a role in limiting the first heat-insulating part 5, the effect of heat preservation spare two 6 axis positions, the top surface bonding of limiting plate 7 has aluminium foil reflection stratum 8, and aluminium foil reflection stratum 8 plays reflection sunlight, reduces the effect of sun directly penetrating lower upper bracket 2 surface temperature, the horizontal distance between the terminal part of lower bracket 1, upper bracket 2 and the terminal surface that two limiting plates 7 are opposite to each other is not less than 5cm, and lower bracket 1, upper bracket 2 can shade the junction between heat preservation spare one 5, heat preservation spare two 6 and the pipeline heat preservation, reduces the losing the temperature of gap department.
The working principle of the technical scheme is as follows: placing the lower bracket 1 below a pipeline and fixing, then sliding the first heat-insulating part 5 and the second heat-insulating part 6 along the surface of the pipeline into the lower bracket 1 between the two limiting plates 7, enabling the joint of the first heat-insulating part 5 and the second heat-insulating part 6 to be positioned at the center line position of the lower bracket 1, then covering the upper bracket 2 on the first heat-insulating part 5 and the second heat-insulating part 6, and then connecting the lower bracket 1 and the upper bracket 2 through the bolt part 4; when the device is used, the hard polyurethane foam heat-insulating layer 63 plays an effective heat-insulating role, the inner framework 62 plays a role in supporting the hard polyurethane foam heat-insulating layer 63, the aluminum foil reflecting layer 8 plays a role in reflecting sunlight and weakening the surface temperature of the upper bracket 2 under direct sunlight.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the utility model, and it is noted that there is virtually no limit to the specific structure which may be imposed by those skilled in the art without departing from the spirit of the utility model, and that modifications, adaptations, or variations of the foregoing features may be combined in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (7)
1. A cold insulation pipe shoes for LNG pipeline centre gripping, its characterized in that: including lower bracket (1) and last bracket (2), the bottom of lower bracket (1) is connected with base (3), the inboard of lower bracket (1) is provided with two limiting plates (7) relatively, the inboard adaptation of lower bracket (1) and last bracket (2) between two limiting plates (7) is installed heat preservation spare one (5) and heat preservation spare two (6) that the structure size is the same, heat preservation spare two (6) are by shell body (61), inner skeleton (62) and stereoplasm polyurethane foam heat preservation (63) are constituteed, lower bracket (1) and last bracket (2) are connected through bolt piece (4).
2. A cold insulation shoe for LNG line clamping according to claim 1, characterized in that: the inner framework (62) is welded on the inner side of the outer shell (61), and the inner framework (62) is of a honeycomb grid structure.
3. A cold insulation shoe for LNG line clamping according to claim 1, characterized in that: the rigid polyurethane foam heat-insulating layer (63) is filled in the cavity of the inner framework (62).
4. A cold insulation shoe for LNG line clamping according to claim 1, characterized in that: the horizontal distance between the end face of the hard polyurethane foam heat-insulating layer (63) and the end face of the inner framework (62) is 1-5 cm.
5. A cold insulation shoe for LNG line clamping according to claim 1, characterized in that: the limiting plates (7) are of fan-ring plate structures, and two opposite end faces of the limiting plates (7) are connected with two end faces of the first heat-insulating part (5) and the second heat-insulating part (6) in a sliding mode.
6. A cold insulation shoe for LNG line clamping according to claim 1, characterized in that: an aluminum foil reflecting layer (8) is adhered to the top surface of the limiting plate (7).
7. A cold insulation shoe for LNG line clamping according to claim 1, characterized in that: the horizontal distance between the end parts of the lower bracket (1) and the upper bracket (2) and the end surfaces of the two limiting plates (7) which are opposite to each other is not less than 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321865436.8U CN220249338U (en) | 2023-07-17 | 2023-07-17 | A cold thermal insulation pipe shoes for LNG pipeline centre gripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321865436.8U CN220249338U (en) | 2023-07-17 | 2023-07-17 | A cold thermal insulation pipe shoes for LNG pipeline centre gripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220249338U true CN220249338U (en) | 2023-12-26 |
Family
ID=89268689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321865436.8U Active CN220249338U (en) | 2023-07-17 | 2023-07-17 | A cold thermal insulation pipe shoes for LNG pipeline centre gripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220249338U (en) |
-
2023
- 2023-07-17 CN CN202321865436.8U patent/CN220249338U/en active Active
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