CN218000856U - Low-temperature metal hose heat insulation structure - Google Patents
Low-temperature metal hose heat insulation structure Download PDFInfo
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- CN218000856U CN218000856U CN202221002308.6U CN202221002308U CN218000856U CN 218000856 U CN218000856 U CN 218000856U CN 202221002308 U CN202221002308 U CN 202221002308U CN 218000856 U CN218000856 U CN 218000856U
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- hose
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Abstract
The utility model provides a thermal insulation structure of low temperature metal collapsible tube, include: a first heat retaining material and a hose; the first cold-keeping material is wound and formed around the outer wall of the hose. The heat insulation structure can ensure that cold insulation materials at the bending part of the hose are not pulled to crack when the hose generates relative movement under low temperature.
Description
Technical Field
The utility model relates to an aerospace field, concretely relates to adiabatic structure of low temperature metal collapsible tube.
Background
The metal hose is widely applied to the field of cryogenic fluid delivery due to good low-temperature adaptability, medium compatibility and flexibility. The metal hose is mainly suitable for being installed in a limited space, compensating cold and hot deformation, adapting to relative motion and other scenes. In order to meet the heat insulation requirement of the low-temperature fluid in long-time circulation, the outer surface of the metal hose is coated with a layer of soft cold insulation material. However, since most cold-insulating materials become brittle at low temperatures, the cold-insulating materials in the bent portions of the metal hose tend to be pulled apart if relative movement occurs after cryogenic fluid flows through the metal hose in the conventional heat-insulating coating method. Therefore, the conventional insulation coating method has poor adaptability to the movement of the metal hose after the circulation of the cryogenic fluid. If the pulled cold insulation material is not repaired or recoated, when the metal hose needs to be circulated with the cryogenic fluid repeatedly, the heat insulation effect of the cold insulation material is correspondingly reduced.
In order to prevent the cold insulation material at the bent part of the hose from being pulled apart, it is important to design a low-temperature metal hose heat insulation structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a low temperature metal collapsible tube heat insulation structure.
The utility model provides a thermal insulation structure of low temperature metal collapsible tube, include: a first heat retaining material and a hose; and the first cold-keeping material is wound and formed around the outer wall of the hose.
According to an embodiment of the invention, the first heat insulating material is spirally wound around the outer wall of the hose.
According to an embodiment of the present invention, the device further comprises a first outer protective layer; the first outer protective layer is attached to an outer wall of the first heat retentive material.
According to an embodiment of the invention, the first heat insulating material is adhesively connected to the outer wall of the hose.
According to an embodiment of the invention, the first heat insulating material is adhesively connected with the first outer protective layer.
According to the utility model discloses an embodiment, first outer inoxidizing coating is provided with the reflection stratum for external light reflects.
According to the utility model discloses an embodiment, first heat retaining material interval twines in the hose outer wall.
According to an embodiment of the present invention, the cooling device further comprises a second cold insulation material; two ends of the hose are connected with the straight pipe; the second cold insulation material coats the outer wall of the straight pipe; the second cold-holding material is adhesively connected with the first cold-holding material.
According to an embodiment of the present invention, the hose and the straight pipe are integrally formed.
According to an embodiment of the invention, the first and second cold-keeping materials are rubber materials.
According to the utility model discloses an adiabatic structure through twine first cold insulation material at hose (like metal collapsible tube) outer wall, can make first cold insulation material under the low temperature condition, adapts to hose relative motion (like bending deformation), and not by the stretch breaking to can make hose (like metal collapsible tube) after the cold insulation repeatedly use under the low temperature condition. The problem that the cold insulation material at the bent part of the hose is pulled to crack when the metal hose generates relative motion again under the low-temperature condition in the conventional coating mode is solved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a front view of a cryogenic metal hose insulation structure according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken in the direction of FIG. 1B-B;
fig. 3 is an enlarged view of a in fig. 2.
Description of the reference numerals:
1-straight pipe, 2-second cold insulation material, 3-second outer protective layer, 4-first cold insulation material, 5-first outer protective layer, 6-hose and 7-first gap.
Detailed Description
The features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, for the purposes of illustrating the principles of the invention. Additionally, the components in the drawings are not necessarily to scale. For example, the dimensions of some of the structures or regions in the figures may be exaggerated relative to other structures or regions to help improve understanding of embodiments of the present invention.
The directional terms appearing in the following description are directions shown in the drawings and are not intended to limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise stated, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Furthermore, the terms "comprises," "comprising," "includes," "including," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or component comprising a list of elements does not include only those elements but may include other mechanical components not expressly listed or inherent to such structure or component. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" 8230; "does not exclude the presence of additional like elements in an article or device comprising the element.
Spatially relative terms such as "under," "below," "at \8230," "lower," "above," "at \8230," "upper," and the like are used for convenience in description to explain the positioning of one element relative to a second element, indicating that the terms are intended to encompass different orientations of the device in addition to different orientations than those illustrated in the figures. Further, for example, the phrase "one element is over/under another element" may mean that the two elements are in direct contact, or that there is another element between the two elements. Furthermore, terms such as "first", "second", and the like, are also used to describe various elements, regions, sections, etc., and are not particularly meant to imply a sequential or chronological meaning, and should not be taken as limiting. Like terms refer to like elements throughout the description.
It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples thereof.
FIG. 1 is a front view of a cryogenic metal hose insulation structure according to an embodiment of the present invention; FIG. 2 is a cross-sectional view taken in the direction of FIG. 1B-B; fig. 3 is an enlarged view of a in fig. 2.
As shown in fig. 1, the utility model provides a low temperature metal hose heat insulation structure, include: a first heat retaining material 4 and a hose 6. The first heat insulating material 4 is wound around the outer wall of the hose 6.
The heat insulating structure of the present embodiment is simple in structure and manufacturing process. The first cold-keeping material is connected with the outer wall of the hose, so that heat transfer between a low-temperature medium in the hose and the environment outside the hose can be isolated, and heat leakage is reduced. In addition, by wrapping the first heat-insulating material around the outer wall of the hose (e.g., a metal hose), the first heat-insulating material can accommodate relative movement (e.g., bending deformation) of the hose without being pulled apart under low temperature conditions. So that the cold-insulated hose (such as a metal hose) can be repeatedly used under the condition of low temperature.
As shown in fig. 1, according to an embodiment of the present invention, the first heat insulating material 4 is spirally wound around the outer wall of the flexible tube 6.
In this embodiment, the first heat-preserving material is disposed on the outer wall of the hose in a spiral winding manner, and can not be pulled apart when the hose is bent. For example, the first heat insulating material is in the form of a strip or a band, and the strip or band of the first heat insulating material is disposed on the outer wall of the hose in a spiral winding manner.
The present embodiment does not limit the length and width of the first heat-retaining material.
The adiabatic structure that this embodiment provided, after the low temperature medium through-flow, when the hose takes place bending deformation, because first cold insulation material adopts spiral winding's mode to set up in the hose outer wall, consequently first cold insulation material still has certain pliability this moment, can follow the hose low temperature motion better, and the adaptability is stronger, and does not take place the fracture.
The first cold-keeping material can also be arranged on the outer wall of the hose in a hoop winding mode, and the effect can be achieved.
As shown in fig. 2, according to an embodiment of the present invention, a first outer protective layer 5 is further included. A first outer protective layer 5 is attached to the outer wall of the first cold-retaining material 4.
In this embodiment, the first outer protective layer is connected to the outer surface of the first heat-insulating material, so as to prevent the first heat-insulating material from being damaged by external factors during transportation, installation or use of the hose.
According to an embodiment of the present invention, the first heat insulating material 4 is adhesively connected to the outer wall of the hose 6.
According to an embodiment of the invention, the first heat insulating material 4 is adhesively connected to the first outer protective layer 5.
According to the utility model discloses an embodiment, its characterized in that, first outer protective layer 5 is provided with the reflection stratum for external light reflects.
In the heat insulation structure provided by the embodiment, the reflective layer (such as a bright outer surface) of the first outer protective layer can reflect external light and heat, so that the surface temperature of the first cold-insulation material is reduced, and heat leakage of a low-temperature medium in the hose is further reduced.
As shown in fig. 2 and 3, according to an embodiment of the present invention, the first heat-preserving material 4 is wound around the outer wall of the flexible tube 6 at intervals.
In this embodiment, when spirally winding, a first gap 7 (e.g. the size of the first gap 7 is 1-2 mm) is left between the joints of the first cold-keeping material (e.g. strip-shaped or belt-shaped cold-keeping material). After the low-temperature medium flows through the pipeline, when the hose is bent and deformed, the first cold-preserving material is arranged on the outer wall of the hose in a spiral winding mode, so that the first cold-preserving material still has certain flexibility at the moment, a first gap 7 is reserved between seams, the first cold-preserving material can better follow the relative movement (such as bending deformation and the like) of the hose under the low-temperature condition, the adaptability is stronger, and the hose is prevented from cracking. In this embodiment, the first gap does not need to be filled with glue.
Similarly, the outer wall of the strip-shaped or belt-shaped first heat-preserving material can be attached with a corresponding strip-shaped or belt-shaped first outer protective layer, and the strip-shaped or belt-shaped first outer protective layer is also spirally wound on the outer wall of the first heat-preserving material along with the first heat-preserving material.
As shown in fig. 1, according to one embodiment of the present invention, the heat insulating structure comprises a second cold insulating material 2 in addition to the first cold insulating material 4 and the hose 6. The two ends of the hose 6 are connected with the straight pipe 1. The second cold insulation material 2 coats the outer wall of the straight pipe 1. The second cold-keeping material 2 is adhesively connected to the first cold-keeping material 4.
Further, the hose 6 is integrally formed with the straight pipe 1.
In this embodiment, different cooling methods can be used for the hose having relative movement (such as bending deformation) during operation and the straight pipe having no bending deformation during operation. For example, the first cold-holding material may be wrapped around the hose in a spiral-wound manner, while the second cold-holding material may be wrapped around the straight tube in a conventional thermal insulation wrap (e.g., sheet wrap or pre-shell wrap). The first cold-retaining material and the second cold-retaining material may be joined together by gluing. The second cold insulation outer wall may be provided with a second outer protective layer 3. The second outer protective layer may be attached to the outer wall of the second cold-insulating material in the manner of the first outer protective layer, i.e., may be correspondingly disposed according to the shape and coating manner of the second cold-insulating material.
In the heat insulation structure provided by the embodiment, when the hose is bent or moves relative to the straight pipe after the straight pipe and the hose are communicated with the low-temperature fluid, the first cold insulation material and the second cold insulation material cannot be pulled to crack under the low-temperature condition.
It will be appreciated by those skilled in the art that the second cold insulation material may also be wrapped around the straight pipe using a spiral or hoop winding. A second gap may be left between the seams of the second cold insulation material (e.g. strip or strip cold insulation material), and the second gap may be filled with glue.
According to an embodiment of the present invention, the first heat insulating material 4 and the second heat insulating material 2 are rubber materials.
In this embodiment, the first cold-insulating material and the second cold-insulating material may be plastic, foam, or the like having a cold-insulating or heat-insulating function.
The above embodiments of the present invention can be combined with each other, and have corresponding technical effects.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A cryogenic metal hose insulation structure comprising: a first heat retaining material and a hose;
the first cold-keeping material is wound on the outer wall of the hose at intervals, and a first gap is reserved between seams.
2. An insulating structure according to claim 1, wherein said first heat retaining material is helically wound around the outer wall of said hose.
3. The insulating structure of claim 1, further comprising a first outer protective layer; the first outer protective layer is attached to an outer wall of the first heat retentive material.
4. An insulating structure according to claim 1, wherein said first heat retaining material is adhesively attached to said outer wall of said flexible tube.
5. A thermal insulation structure according to claim 3, wherein said first thermal insulating material is adhesively attached to said first outer protective layer.
6. A heat insulating structure according to claim 3, wherein the first outer protective layer is provided with a reflective layer for reflecting ambient light.
7. An insulating structure according to claim 1, further comprising a second cold insulating material;
two ends of the hose are connected with the straight pipe;
the second cold insulation material coats the outer wall of the straight pipe;
the second cold-holding material is adhesively connected with the first cold-holding material.
8. An insulating structure according to claim 7, wherein the hose is formed integrally with the straight pipe.
9. An insulating structure according to claim 7, characterised in that the first and second cold-retaining materials are rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221002308.6U CN218000856U (en) | 2022-04-24 | 2022-04-24 | Low-temperature metal hose heat insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221002308.6U CN218000856U (en) | 2022-04-24 | 2022-04-24 | Low-temperature metal hose heat insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218000856U true CN218000856U (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221002308.6U Active CN218000856U (en) | 2022-04-24 | 2022-04-24 | Low-temperature metal hose heat insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218000856U (en) |
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2022
- 2022-04-24 CN CN202221002308.6U patent/CN218000856U/en active Active
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