CN210600688U - PIR composite telescopic cold insulation pipe shell - Google Patents
PIR composite telescopic cold insulation pipe shell Download PDFInfo
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- CN210600688U CN210600688U CN201921130653.6U CN201921130653U CN210600688U CN 210600688 U CN210600688 U CN 210600688U CN 201921130653 U CN201921130653 U CN 201921130653U CN 210600688 U CN210600688 U CN 210600688U
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- pipe
- outer tube
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- primary
- pir
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- 238000009413 insulation Methods 0.000 title claims abstract description 64
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000004321 preservation Methods 0.000 claims abstract description 18
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 4
- 239000004744 fabric Substances 0.000 claims description 6
- 150000001993 dienes Chemical class 0.000 claims description 3
- 239000013521 mastic Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000806 elastomer Substances 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000009916 joint effect Effects 0.000 abstract description 2
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000003949 liquefied natural gas Substances 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical group C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
The utility model relates to a compound flexible cold insulation tube shell of PIR, including the inner tube, its characterized in that, the coaxial cover that corresponds of outer wall of inner tube has the heat preservation outer tube one that the cross section is the semicircle arcuation, the outer wall of heat preservation outer tube two is equipped with the dampproof course, the flexible pipeline section of elastomer is dialkene and butadiene acrylonitrile rubber's composite construction. The utility model has the advantages of simple structure, and reasonable design, through setting up the body for the thermal insulation outer tube one and the thermal insulation outer tube two of the flexible pipeline section of PIR pipeline section and elastomer in turn each other, avoided appearing cold insulation badly because of the expend with heat and contract with cold of pipeline, the thermal insulation phenomenon of breaking, thermal insulation outer tube one staggers for semicircle arcuation and seam crossing with thermal insulation outer tube two cross sections and sets up perpendicularly, the effect of double-deck cold insulation has been realized, medium in having avoided the inner tube promptly takes place the heat exchange with the surrounding environment, through setting up primary and secondary lug and primary and secondary recess, be convenient for install, the wrong joint effect has been improved, be difficult for leaking.
Description
Technical Field
The utility model relates to a heat preservation equipment technical field especially relates to a compound flexible cold insulation tube shell of PIR.
Background
When LNG (-165 ℃, liquefied natural gas) and liquid ethylene (-104 ℃), liquid nitrogen and other special liquids are transported by pipelines, a heat-insulating pipe shell needs to be arranged outside the transportation pipeline to prevent the special liquids in the pipeline from being heated and gasified, so that a cold insulation measure for the transportation pipeline is one of key factors for ensuring normal transportation of the pipeline. However, the currently used cold insulation pipe shell is unreasonable in structural design, and poor cold insulation and thermal insulation due to thermal expansion and cold contraction of the pipeline are easy to occur, so that the medium in the inner pipe is easy to exchange heat with the surrounding environment.
Disclosure of Invention
The utility model aims at solving the defects of the prior art and providing a PIR composite telescopic cold insulation pipe shell.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a PIR composite telescopic cold insulation pipe shell comprises an inner pipe and is characterized in that a first heat insulation outer pipe with a semicircular arc-shaped cross section is coaxially and correspondingly sleeved on the outer wall of the inner pipe, a second heat insulation outer pipe with a semicircular arc-shaped cross section is coaxially and correspondingly sleeved on the outer wall of the first heat insulation outer pipe, a moisture-proof layer is arranged on the outer wall of the second heat insulation outer pipe, a seam of the first heat insulation outer pipe and a seam of the second heat insulation outer pipe are vertically arranged in a staggered mode, a pipe body of the second heat insulation outer pipe and a pipe body of the first heat insulation outer pipe comprise a plurality of PIR pipe sections and elastic body telescopic pipe sections which are mutually alternated, the elastic body telescopic pipe sections are of a composite structure of alkadiene and nitrile rubber, the connecting ends of the PIR pipe sections and the elastic body telescopic pipe sections are connected in a bonding mode, a plurality of primary, and a plurality of primary and secondary grooves are also formed in one end, on the same side of the primary and secondary lugs of the second heat-insulation outer pipe, of the first heat-insulation outer pipe, and a plurality of primary and secondary lugs are also formed in one end, on the same side of the primary and secondary grooves of the second heat-insulation outer pipe, of the first heat-insulation outer pipe.
The pipe wall thicknesses of the first heat-preservation outer pipe and the second heat-preservation outer pipe can be customized.
The moisture-proof layer is any one of three-proof cloth, fireproof cloth or mastic.
The utility model has the advantages that: the utility model has the advantages of simple structure, and reasonable design, through setting up the body for the thermal insulation outer tube one and the thermal insulation outer tube two of the flexible pipeline section of PIR pipeline section and elastomer in turn each other, avoided appearing cold insulation badly because of the expend with heat and contract with cold of pipeline, the thermal insulation phenomenon of breaking, thermal insulation outer tube one staggers for semicircle arcuation and seam crossing with thermal insulation outer tube two cross sections and sets up perpendicularly, the effect of double-deck cold insulation has been realized, medium in having avoided the inner tube promptly takes place the heat exchange with the surrounding environment, through setting up primary and secondary lug and primary and secondary recess, be convenient for install, the wrong joint effect has been improved, be difficult for leaking.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
in the figure: 1-inner tube; 2-a first heat-preservation outer pipe; 3-insulating outer pipe II; 4-an elastomeric telescoping tube section; 5-PIR tube section; 6-primary-secondary bump; 7-a moisture barrier; 8-primary and secondary grooves;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
as shown in the figure, the PIR composite telescopic cold insulation pipe shell comprises an inner pipe 1 and is characterized in that the outer wall of the inner pipe 1 is coaxially and correspondingly sleeved with a heat insulation outer pipe I2 with a semicircular arc-shaped cross section, the outer wall of the heat insulation outer pipe I2 is coaxially and correspondingly sleeved with a heat insulation outer pipe II 3 with a semicircular arc-shaped cross section, the outer wall of the heat insulation outer pipe II 3 is provided with a moisture-proof layer 7, the seam of the heat insulation outer pipe I2 and the seam of the heat insulation outer pipe II 3 are vertically arranged in a staggered mode, the pipe body of the heat insulation outer pipe II 3 and the pipe body of the heat insulation outer pipe I2 comprise a plurality of PIR pipe sections 5 and elastic body telescopic pipe sections 4 which are alternated mutually, the elastic body telescopic pipe sections 4 are of a composite structure of alkadiene and nitrile rubber, the connecting end of the PIR pipe sections 5 and the elastic body telescopic, the other end of the second heat-insulation outer pipe 3 is provided with a plurality of primary and secondary grooves 8, a plurality of primary and secondary grooves 8 are also formed in one end, on the same side of the primary and secondary lugs 6 of the second heat-insulation outer pipe 3, of the first heat-insulation outer pipe 2, and a plurality of primary and secondary lugs 6 are also formed in one end, on the same side of the primary and secondary grooves 8 of the second heat-insulation outer pipe 3, of the first heat-insulation outer pipe 2.
The pipe wall thicknesses of the first heat-preservation outer pipe 2 and the second heat-preservation outer pipe 3 can be customized.
The moisture-proof layer 7 is any one of three-proof cloth, fireproof cloth or mastic.
The utility model discloses during the use, LNG, liquid ethylene or liquid nitrogen carry out the transportation process by inner tube 1 in, through setting up primary and secondary lug 6 and primary and secondary recess 8, be convenient for install, through setting up heat preservation outer tube one 2 and heat preservation outer tube two 3 that the body is the flexible pipeline section 4 of PIR pipeline section 5 and elastomer in turn each other, avoided appearing cold insulation badly because of the expend with heat and contract with cold of pipeline, the thermal-insulated phenomenon of breaking off, heat preservation outer tube one 2 and heat preservation outer tube two 3 cross sections stagger for half circular arc shape and seam crossing and set up perpendicularly, the effect of double-deck cold insulation has been realized, medium in having avoided inner tube 1 promptly takes place the heat exchange with the surrounding environment, improved the fissure of displacement effect, be difficult for leaking cold, the utility model discloses simple structure, reasonable.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (3)
1. A PIR composite telescopic cold insulation pipe shell comprises an inner pipe (1) and is characterized in that the outer wall of the inner pipe (1) is coaxially and correspondingly sleeved with a first heat insulation outer pipe (2) with a semicircular arc-shaped cross section, the outer wall of the first heat insulation outer pipe (2) is coaxially and correspondingly sleeved with a second heat insulation outer pipe (3) with a semicircular arc-shaped cross section, a moisture-proof layer (7) is arranged on the outer wall of the second heat insulation outer pipe (3), the seam of the first heat insulation outer pipe (2) and the seam of the second heat insulation outer pipe (3) are vertically arranged in a staggered mode, the pipe body of the second heat insulation outer pipe (3) and the pipe body of the first heat insulation outer pipe (2) comprise a plurality of PIR pipe sections (5) and elastic body telescopic pipe sections (4) which are mutually alternated, the elastic body telescopic pipe sections (4) are of a composite structure of alkadiene and nitrile rubber, and the PIR pipe sections, the one end rigid coupling of two (3) of heat preservation outer tube has a plurality of primary and secondary lugs (6), the other end of two (3) of heat preservation outer tube is equipped with a plurality of primary and secondary recesses (8), on one (2) of heat preservation outer tube with the one end of primary and secondary lug (6) homonymy of two (3) of heat preservation outer tube also is equipped with a plurality of primary and secondary recesses (8), on one (2) of heat preservation outer tube with the one end of primary and secondary recess (8) homonymy of two (3) of heat preservation outer tube also is equipped with a plurality of primary and secondary lugs (6).
2. A PIR composite telescopic cold insulation pipe shell according to claim 1, characterized in that the pipe wall thickness of the first thermal insulation outer pipe (2) and the second thermal insulation outer pipe (3) can be customized.
3. A PIR composite telescopic cold-insulating shell according to claim 1, characterized in that the moisture-proof layer (7) is any one of a three-proof cloth, a fire-proof cloth or mastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921130653.6U CN210600688U (en) | 2019-07-18 | 2019-07-18 | PIR composite telescopic cold insulation pipe shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921130653.6U CN210600688U (en) | 2019-07-18 | 2019-07-18 | PIR composite telescopic cold insulation pipe shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210600688U true CN210600688U (en) | 2020-05-22 |
Family
ID=70689112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921130653.6U Active CN210600688U (en) | 2019-07-18 | 2019-07-18 | PIR composite telescopic cold insulation pipe shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210600688U (en) |
-
2019
- 2019-07-18 CN CN201921130653.6U patent/CN210600688U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240404 Address after: 062455 Hejian Economic Development Zone, Cangzhou City, Hebei Province, 200 meters west of Jingba Road and south of No. 5 Road (East District) Patentee after: Hebei Lingshuang Thermal Insulation Material Co.,Ltd. Country or region after: China Address before: 062455 Hejian Economic Development Zone, Cangzhou City, Hebei Province Patentee before: Hebei zhongyun Lihe thermal insulation material Co.,Ltd. Country or region before: China |