CN209892961U

CN209892961U - Pipeline cold insulation device

Info

Publication number: CN209892961U
Application number: CN201920478916.6U
Authority: CN
Inventors: 格沙德; 徐剑; 宋敏
Original assignee: Nanjing Herunlong Environmental Protection Technology Co Ltd
Current assignee: Nanjing Herunlong Environmental Protection Technology Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-01-03
Anticipated expiration: 2029-04-10

Abstract

The utility model provides a pipeline cold insulation device, including cold insulation mechanism, cold insulation mechanism wraps up in the periphery of pipeline, cold insulation mechanism includes inside cold insulation layer, first foam glass layer, second foam glass layer, net cloth layer, mastic dampproof course and the outer metal protective layer that the pipeline outwards set gradually, the outer wall circumference on first foam glass layer is equipped with a plurality of rectangular form cavitys, the symmetry plane that cavity length direction distributes with the axis of pipeline is parallel, the outside of outer metal protective layer is equipped with the fixed subassembly of detachable, fixed subassembly plays the effect of fixing and supporting. The utility model discloses a cold insulation device simple structure, cold insulation effect are better, and the setting of rectangular form cavity not only provides certain deformation allowance for the expend with heat and contract with cold of pipeline, and helps improving the device's heat preservation effect.

Description

Pipeline cold insulation device

Technical Field

The utility model relates to the technical field of pipelines, concretely relates to pipeline cold-proof device.

Background

At present, with the implementation of national energy policy, the application of liquefied natural gas as an efficient and clean energy source in China is increasingly important. In the process of conveying liquefied natural gas, how to carry out cold insulation on a conveying pipeline is very important, but some cold insulation facilities of the liquefied natural gas pipeline only add heat insulation foam, the weather resistance and the cold insulation performance are poor, and the pipeline is easy to generate cold loss. Therefore, a pipe cooling device capable of solving the existing problems is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pipeline cold insulation device to the not enough of prior art, this cold insulation device simple structure, cold insulation is effectual.

The utility model provides a following technical scheme:

the utility model provides a pipeline cold insulation device, includes cold insulation mechanism, cold insulation mechanism wraps up in the periphery of pipeline, cold insulation mechanism includes inside cold insulation layer, first foam glass layer, second foam glass layer, net cloth layer, mastic dampproof course and the outer metal protection layer that the pipeline outwards set gradually, the outer wall circumference on first foam glass layer is equipped with a plurality of rectangular form cavities, the symmetry plane that cavity length direction distributes with the axis of pipeline is parallel, the outside of outer metal protection layer is equipped with the fixed subassembly of detachable.

Preferably, the material adopted by the inner cold insulation layer is polyisocyanurate.

Preferably, the first foam glass layer is composed of two first cold-keeping parts forming semicircular grooves along the length direction, triangular clamping blocks are arranged on the end face of one end of each first cold-keeping part, triangular clamping grooves corresponding to the clamping blocks are arranged on the end face of the other end of each first cold-keeping part, the two first cold-keeping parts are spliced, one clamping block of each first cold-keeping part is clamped into the other clamping groove of each first cold-keeping part, and the other clamping block of each first cold-keeping part is clamped into the clamping groove of each first cold-keeping part.

Preferably, the second foam glass layer comprises two second cold insulation pieces forming semicircular grooves along the length direction, a square lug is arranged on the end face of one end of each second cold insulation piece, a square groove corresponding to the lug is arranged on the end face of the other end of each second cold insulation piece, and the second cold insulation pieces are spliced and one of the lugs is clamped into the other lug of each second cold insulation piece.

Preferably, a plurality of stainless steel binding bands are arranged on the outer side of the second foam glass layer.

Preferably, the outer metal protective layer is provided with a step-shaped splicing seam.

Preferably, fixed subassembly includes through bolt fastening's last fixed clamp and lower fixed clamp, fixed clamp bottom is fixed with two parallel arrangement's backup pad down, the backup pad bottom is fixed with the base.

Preferably, a plurality of damping springs are arranged between the supporting plates.

The utility model has the advantages that:

the cold insulation device of the utility model has simple structure and good cold insulation effect; the arrangement of the strip-shaped cavity not only provides a certain deformation allowance for the expansion with heat and contraction with cold of the pipeline, but also is beneficial to improving the heat preservation effect of the device; the setting of damping spring makes fixed subassembly have certain shock attenuation effect.

Drawings

The accompanying drawings are included to provide a further understanding and description of the invention.

Fig. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is a schematic structural view of the pipeline and the cold insulation mechanism of the present invention;

fig. 3 is a schematic structural diagram of the fixing assembly of the present invention.

Labeled as: 1. a pipeline; 2. an inner cold insulation layer; 3. a first foam glass layer; 4. a second foam glass layer; 5. a mesh fabric layer; 6. a mastic moisture barrier; 7. an outer metal protective layer; 8. a cavity; 9. a first heat retention member; 10. a clamping block; 11. a card slot; 12. a second cold-keeping member; 13. a bump; 14. a groove; 15. a binding band; 16. splicing seams; 17. an upper fixing clamp; 18. a lower fixing clamp; 19. a support plate; 20. a base; 21. a shock absorbing spring.

Detailed Description

As shown in fig. 1 to 3, a pipeline cold insulation device comprises a cold insulation mechanism, the cold insulation mechanism is wrapped on the periphery of a pipeline 1, the cold insulation mechanism comprises an inner cold insulation layer 2, a first foam glass layer 3, a second foam glass layer 4, a grid cloth layer 5, a mastic moisture-proof layer 6 and an outer metal protection layer 7, the pipeline 1 is outwards and sequentially arranged, the inner cold insulation layer 2 is made of polyisocyanurate, a plurality of strip-shaped cavities 8 are circumferentially arranged on the outer wall of the first foam glass layer 3, the symmetrical surfaces of the cavities 8 distributed in the length direction are parallel to the central axis of the pipeline 1, the arrangement of the cavities 8 is favorable for improving the heat insulation effect of the cold insulation mechanism and can provide a certain deformation allowance, the first foam glass layer 3 is composed of two first cold insulation pieces 9 forming semicircular grooves 14 in the length direction, triangular clamping blocks 10 are arranged on the end face of one end of the first cold insulation piece 9, triangular clamping grooves 11 corresponding to the clamping blocks 10 are arranged on the end face of the other end of the first cold insulation piece 9, splicing the two first cold-keeping parts 9, wherein a clamping block 10 of one first cold-keeping part 9 is clamped into a clamping groove 11 of the other first cold-keeping part 9; the second foam glass layer 4 consists of two second cold insulation pieces 12 forming semicircular grooves 14 along the length direction, a square bump 13 is arranged on the end face of one end of each second cold insulation piece 12, a square groove 14 corresponding to the bump 13 is arranged on the end face of the other end of each second cold insulation piece 12, the two second cold insulation pieces 12 are spliced, the bump 13 of one second cold insulation piece 12 is clamped into the groove 14 of the other second cold insulation piece 12, and a plurality of stainless steel binding belts 15 are arranged on the outer side of the second foam glass layer 4; for the use of outer metal protection layer 7, be equipped with echelonment concatenation seam 16 on the outer metal protection layer 7, the outside of outer metal protection layer 7 is equipped with the fixed subassembly of detachable, and fixed subassembly includes fixed clamp 17 and the fixed clamp 18 down on through the bolt fastening, and fixed clamp 18 bottom is fixed with two parallel arrangement's backup pad 19 down, and backup pad 19 bottom is fixed with base 20, and is equipped with a plurality of damping spring 21 between the backup pad 19.

The cold insulation device of the embodiment has simple structure and good cold insulation effect; the arrangement of the strip-shaped cavity 8 not only provides a certain deformation allowance for the expansion with heat and contraction with cold of the pipeline 1, but also is beneficial to improving the heat preservation effect of the device; the damping spring 21 is provided so that the fixing member has a certain damping effect.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pipeline cold insulation device, includes cold insulation mechanism, cold insulation mechanism wraps up in the periphery of pipeline, a serial communication port, cold insulation mechanism includes the outside interior cold insulation layer that sets gradually of pipeline, first foam glass layer, second foam glass layer, net cloth layer, mastic dampproof course and outer metal protection layer, the outer wall circumference on first foam glass layer is equipped with a plurality of rectangular form cavitys, the symmetry plane that cavity length direction distributes with the axis of pipeline is parallel, outer metal protection layer's outside is equipped with the fixed subassembly of detachable.

2. The pipe cold-keeping device of claim 1, wherein the inner cold-keeping layer is made of polyisocyanurate.

3. The pipeline cold insulation device according to claim 1, wherein the first foam glass layer is composed of two first cold insulation members forming a semicircular groove along a length direction, a triangular fixture block is arranged on an end face of one end of each first cold insulation member, a triangular clamping groove corresponding to the fixture block is arranged on an end face of the other end of each first cold insulation member, the two first cold insulation members are spliced, and the fixture block of one first cold insulation member is clamped into the clamping groove of the other first cold insulation member.

4. The pipeline cold insulation device according to claim 1, wherein the second foam glass layer is composed of two second cold insulation members forming semicircular grooves along the length direction, a square protruding block is arranged on the end face of one end of each second cold insulation member, a square groove corresponding to the protruding block is arranged on the end face of the other end of each second cold insulation member, the two second cold insulation members are spliced, and the protruding block of one second cold insulation member is clamped into the groove of the other second cold insulation member.

5. The pipe cooling device of claim 1, wherein the second foam glass layer is provided with a plurality of stainless steel binding bands on the outer side.

6. The pipe cold insulation device of claim 1, wherein the outer metal protective layer is provided with a step-shaped splicing seam.

7. The pipeline cold-keeping device of claim 1, wherein the fixing component comprises an upper fixing clamp and a lower fixing clamp fixed by bolts, two parallel supporting plates are fixed at the bottom of the lower fixing clamp, and a base is fixed at the bottom of the supporting plates.

8. The pipe cooling device of claim 7, wherein a plurality of damping springs are disposed between the supporting plates.