CN220582013U - Heat insulation structure of directly buried heat supply pipeline - Google Patents
Heat insulation structure of directly buried heat supply pipeline Download PDFInfo
- Publication number
- CN220582013U CN220582013U CN202322279543.9U CN202322279543U CN220582013U CN 220582013 U CN220582013 U CN 220582013U CN 202322279543 U CN202322279543 U CN 202322279543U CN 220582013 U CN220582013 U CN 220582013U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- heat
- pipe sleeve
- shrinkage layer
- heat shrinkage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 210000001503 joint Anatomy 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 27
- 238000004321 preservation Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000009933 burial Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000309551 Arthraxon hispidus Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model provides a direct-buried heat supply pipeline heat insulation structure, and belongs to the technical field of heat supply pipeline heat insulation. The direct-burried heat supply pipeline insulation structure includes: the heat shrinkage layer is sleeved outside the pipeline butt joint; the first pipe sleeve is sleeved between the opposite ends of the two pipelines, and the heat shrinkage layer is positioned in the cavity of the first pipe sleeve; the second pipe sleeves are sleeved outside the two butted pipelines, and opposite ends of the two second pipe sleeves are sleeved on two ends of the first pipe sleeve respectively; the groove is formed in the inner wall of the first pipe sleeve, and the two axial ends of the groove extend out of the pipeline butt joint; guide rods are fixedly arranged between the inner walls of the two end sides of the groove, guide plates are arranged on the guide rods at equal intervals, springs are arranged between two adjacent guide plates, and the inner side end faces of the guide plates are inserted into the heat shrinkage layer. The heat-insulating structure of the directly-buried heat supply pipeline has the advantages of good heat-insulating effect and strong ductility and recovery performance.
Description
Technical Field
The utility model relates to the technical field of heat supply pipeline heat preservation, in particular to a direct-buried heat supply pipeline heat preservation structure.
Background
The heat supply pipeline is internally conveyed with high-temperature liquid in the operation process, and at the moment, the pipeline is subjected to pipeline temperature stress formed by temperature change of the liquid in the pipeline and temperature change of the external environment, so that the pipeline is deformed. In order to realize heat preservation of the pipeline, how to arrange the pipeline heat preservation structure so that the pipeline heat preservation structure is suitable for deformation of the pipeline becomes an important research and development subject of the heat supply pipeline heat preservation structure.
For example, the patent of application number CN2016107807237 provides a heat preservation compensation structure of pipeline joint department, including two pipelines that connect and communicate, the pipeline outside parcel has the heat preservation, the outside parcel of heat preservation has an outer pillar, the fixed cover of outer pillar is equipped with a second pipe box, and this second pipe box is close to pipeline joint setting, two second pipe boxes are just being equipped with the installation cavity, the center in installation cavity is the same with second pipe box center, be equipped with flexible sealing ring between second pipe box and the outer pillar, flexible sealing ring sets up in the installation cavity, pipeline joint department is equipped with first pipe box, first pipeline movable sleeve is on two outer pillar simultaneously, and this first pipe box both ends are located the installation cavity of two second pipe boxes respectively, and first pipe box top and flexible sealing ring compress tightly. The heat shrinkage layer that its set up, though can be applicable to realize the good heat preservation to pipeline butt joint when the pipeline warp, but the heat shrinkage layer takes place the extension that suits under the circumstances that the pipeline warp, because pipeline temperature variation is sustainable, leads to the heat shrinkage layer to warp that can last repeatedly. The heat shrinkage layer is easy to reduce in heat preservation performance and extensibility due to fatigue after a certain time by simply utilizing the extensibility of the heat shrinkage layer to be suitable for continuous temperature change of a pipeline.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the direct-buried heat supply pipeline heat insulation structure with good heat insulation effect and strong ductility and recovery performance.
The technical scheme of the utility model is realized as follows:
a direct burial heating conduit insulation structure, comprising:
the heat shrinkage layer is sleeved outside the pipeline butt joint;
the first pipe sleeve is sleeved between the opposite ends of the two pipelines, and the heat shrinkage layer is positioned in the cavity of the first pipe sleeve;
the second pipe sleeves are sleeved outside the two butted pipelines, and opposite ends of the two second pipe sleeves are sleeved on two ends of the first pipe sleeve respectively;
the groove is formed in the inner wall of the first pipe sleeve, and the two axial ends of the groove extend out of the pipeline butt joint;
guide rods are fixedly arranged between the inner walls of the two end sides of the groove, guide plates are arranged on the guide rods at equal intervals, springs are arranged between two adjacent guide plates, and the inner side end faces of the guide plates are inserted into the heat shrinkage layer.
Further, the outer surface of the heat shrinkage layer and the outer surface of the pipeline are positioned on the same circumferential surface, and the spring is positioned between the outer surface of the heat shrinkage layer and the inner wall surface of the first pipe sleeve in the radial direction.
Further, slots for inserting the guide plates are formed in the surface of the heat shrinkage layer, and the inner bottom walls of the slots and the inner end surfaces of the guide plates are distributed at intervals.
Further, through holes are formed in the surface of the guide plate at equal intervals, the through holes are located between the outer surface of the heat shrinkage layer and the inner wall of the slot in the radial direction, and the guide rod penetrates through the through holes.
Further, an air passage is formed in the guide plate, the top end of the air passage is communicated with the through hole, and the bottom end of the air passage is communicated with the inner cavity of the slot.
Further, inner flexible sealing rings sleeved on the pipelines are arranged on the inner walls of the two sides of the groove, and the end parts of the guide rods penetrate through the inner sealing rings and are fixedly connected with the inner walls of the groove.
Further, annular inner mounting grooves are formed in the two ends of the first pipe sleeve, and outer flexible sealing rings sleeved on the pipeline are arranged in the inner mounting grooves.
Further, the notch of interior mounting groove extends along radial outwards and appears and has annular inner ring portion, outer mounting groove has been seted up towards the one end of pipe butt joint to the second pipe box, the notch of outer mounting groove extends along radial inwards has outer ring portion, inner ring portion is arranged in outer mounting groove, just the interior terminal surface cover of outer ring portion is established on first pipe box.
Further, an outer flexible sealing ring is arranged in the outer mounting groove.
The utility model has the following beneficial effects:
1. the heat shrinkage layer is arranged to wrap the pipeline butt joint, and the expansion performance of the heat shrinkage layer is utilized, so that when the pipeline butt joint is subjected to stress deformation, the pipeline butt joint can be effectively attached all the time to ensure good heat insulation performance. Simultaneously, through setting up spring and baffle, after the pyrocondensation layer deformation, after the pipeline stress disappeared, spring and baffle are favorable to the recovery of pyrocondensation layer more, and promotion and then guarantee that the pyrocondensation layer can be long-term effectual sealed pipeline butt joint, guarantee its long-term effectual pipeline butt joint keeps warm.
2. Through setting up through-hole and air flue for when pyrocondensation layer deformation, the cavity of recess and the interior everywhere pressure of slot cavity are the same, improve the pyrocondensation layer when extending with the laminating effect of pipeline butt joint and pipeline, ensure good thermal insulation performance.
Drawings
FIG. 1 is a cross-sectional view of a direct-buried heating pipeline insulation structure of the present utility model mounted on a pipeline;
FIG. 2 is an enlarged view of the heat insulation structure of the direct burial heating pipeline of the present utility model at A in FIG. 1;
FIG. 3 is a schematic view of a portion of FIG. 1 of a direct burial heating conduit insulation structure of the present utility model;
FIG. 4 is a partial cross-sectional view of FIG. 1 of a direct burial heating conduit insulation structure of the present utility model;
FIG. 5 is an enlarged view of the heat insulation structure of the direct burial heating pipeline of the present utility model at B in FIG. 4;
FIG. 6 is a cross-sectional view of a guide plate of the direct burial heating conduit insulation structure of the present utility model.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 6, the heat insulation structure of a direct-buried heat supply pipeline provided by the utility model comprises a heat shrinkage layer (1), a first pipe sleeve (3), a second pipe sleeve (4), a groove (5), a guide rod (6), a guide plate (7) and a spring (8).
The heat shrinkage layer (1) is sleeved outside the pipeline butt joint (2), and the outer surface of the heat shrinkage layer (1) and the outer surface of the pipeline are positioned on the same circumferential surface. The heat shrinkage layer (1) can adapt to deformation of the pipeline butt joint (2) by utilizing the ductility of the heat shrinkage layer, and meanwhile, good sealing performance is guaranteed, and heat dissipation of the pipeline at the pipeline butt joint (2) is prevented.
The first pipe sleeve (3) is sleeved between the opposite ends of the two pipelines, and the heat shrinkage layer (1) is positioned in the cavity of the first pipe sleeve (3). The second pipe sleeves (4) are sleeved outside the two butted pipelines, and the opposite ends of the two second pipe sleeves (4) are respectively sleeved on the two ends of the first pipe sleeve (3).
The groove (5) is formed in the inner wall of the first pipe sleeve (3), two side walls of the groove (5) extend out of the child pipeline butt joint head (2) in the axial direction of the groove, guide rods (6) are fixedly arranged between the inner walls of the two end sides of the groove (5), guide plates (7) are arranged on the guide rods (6) at equal intervals, springs (8) are arranged between two adjacent guide plates (7), the springs (8) are radially arranged between the outer surface of the heat shrinkage layer (1) and the inner wall surface of the first pipe sleeve (3), and the inner side end surfaces of the guide plates (7) are inserted into the heat shrinkage layer (1).
At the moment, the spring (8) keeps the guide plate (7) at the initial position on the guide rod (6) through the elastic action of the spring, and the spring is inserted into the heat-shrinkable layer (1) in cooperation with the guide plate (7) to achieve the limit effect on the heat-shrinkable layer (1). When the pipeline butt joint (2) deforms under the action of temperature difference and stress, the heat shrinkage layer (1) correspondingly deforms along with the pipeline under the support of ductility. Meanwhile, the elastic force of the spring (8) is converted into the elastic limiting effect on the heat shrinkage layer (1) by the guide plate (7), so that the attaching effect of the heat shrinkage layer (1) to the pipeline butt joint (2) and the pipeline is improved, and the heat insulation performance of the heat shrinkage layer is improved. In addition, the elastic action of the springs (8) is utilized, the solid effect of the guide plate (7) on the heat shrinkage layer (1) is improved, the recovery performance of the heat shrinkage layer (1) is further guaranteed, and the long-term and effective fitting of the heat shrinkage layer to the pipeline and the pipeline butt joint (2) is further guaranteed, so that the heat insulation performance is better.
Specifically, slot (9) for inserting guide plate (7) is set on the surface of heat shrink layer (1), and interval distribution is formed between inner bottom wall of slot (9) and inner end surface of guide plate (7). At this time, the slot (9) forms a space between the inner bottom wall and the inner end surface of the guide plate (7), and the space forms a cavity for the deformation of the heat shrinkage layer (1).
Through holes (10) are formed in the surface of the guide plate (7) at equal intervals, the through holes (10) are radially arranged between the outer surface of the heat shrinkage layer (1) and the inner wall of the slot (9), and the guide rod (6) is arranged in the through holes (10) in a penetrating mode. The through holes (10) are used for communicating the cavity between the outer surface of the heat shrinkage layer (1) and the inner wall surface of the groove (5) so that the air pressure on the outer surface of the heat shrinkage layer (1) is balanced. Particularly, when the heat shrinkage layer (1) is compressed, the air pressure on the outer surface of the heat shrinkage layer (1) is balanced, so that the heat shrinkage layer (1) is ensured to be uniformly stretched.
An air passage (11) is formed in the guide plate (7), the top end of the air passage (11) is communicated with the through hole (10), and the bottom end of the air passage is communicated with the inner cavity of the slot (9). The air flue (11) is communicated with the cavity in the slot (9) between the surface of the heat shrinkage layer (1) and the inner wall surface of the groove (5), so that the pressure applied to the heat shrinkage layer (1) is balanced when the heat shrinkage layer is deformed, and the heat shrinkage layer is uniformly spread everywhere.
The inner flexible sealing rings (12) sleeved on the pipelines are arranged on the inner walls of the two sides of the groove (5), and the end parts of the guide rods (6) penetrate through the inner sealing rings and are fixedly connected with the side inner walls of the groove (5). The inner flexible sealing ring (12) improves the sealing performance between one side of the inner wall of the groove (5) of the first pipe sleeve (3) and the pipeline, and when the pipeline is deformed, the deformation effect of the inner flexible sealing ring (12) is utilized, so that the sealing performance is ensured, and heat dissipation is prevented.
The two ends of the first pipe sleeve (3) are provided with annular inner mounting grooves (13) along the axial direction, and outer flexible sealing rings (14) sleeved on the pipeline are arranged in the inner mounting grooves (13). At this time, the outer flexible sealing ring (14) seals the two ends of the first pipe sleeve (3) and the pipeline, and especially when the pipeline is deformed, the sealing effect of the pipeline can be ensured by utilizing the deformation performance of the outer flexible sealing ring (14). Therefore, through the matching of the inner sealing ring and the outer sealing ring, the first pipe sleeve (3) can be effectively sleeved on a pipeline, and the contact surface of the first pipe sleeve (3) and the pipeline is sealed from the inner side and the outer side.
The notch of interior mounting groove (13) extends along radial outwards and appears and is annular inner ring portion (15), outer mounting groove (16) have been seted up towards the one end of pipe butt joint to second pipe box (4), the notch of outer mounting groove (16) extends along radial inwards has outer ring portion (17), inner ring portion (15) are arranged in outer mounting groove (16), just the interior terminal surface cover of outer ring portion (17) is established on first pipe box (3), be provided with outer flexible sealing washer (18) in outer mounting groove (16).
At this time, the outer flexible seal ring (18) seals the joint between the first pipe sleeve (3) and the second pipe sleeve (4) by being engaged with the outer ring portion (17) and the inner ring portion (15). And outer flexible sealing washer (18) are located between first pipe box (3) portion and second pipe box (4) portion, when realizing being connected first pipe box (3) and second pipe box (4), have good sealing performance, deformation that can the effectual deformation performance utilization self adaptation pipeline simultaneously.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (9)
1. A direct-burried heating pipeline insulation construction, characterized by comprising:
the heat shrinkage layer (1) is sleeved outside the pipeline butt joint (2);
the first pipe sleeve (3) is sleeved between the opposite ends of the two pipelines, and the heat shrinkage layer (1) is positioned in the cavity of the first pipe sleeve (3);
the second pipe sleeves (4) are sleeved outside the two butted pipelines, and opposite ends of the two second pipe sleeves (4) are sleeved on two ends of the first pipe sleeve (3) respectively;
the groove (5) is formed in the inner wall of the first pipe sleeve (3), and the grooves (5) extend to the outside of the pipeline butt joint (2) at two axial ends of the grooves;
guide rods (6) are fixedly arranged between the inner walls of the two end sides of the groove (5), guide plates (7) are arranged on the guide rods (6) at equal intervals, springs (8) are arranged between two adjacent guide plates (7), and the inner side end faces of the guide plates (7) are inserted into the heat shrinkage layer (1).
2. A direct burial heating pipeline insulation structure according to claim 1, wherein the outer surface of the heat shrinkage layer (1) and the outer surface of the pipeline are located on the same circumferential surface, and the spring (8) is located between the outer surface of the heat shrinkage layer (1) and the inner wall surface of the first pipe sleeve (3) in the radial direction.
3. The direct-buried heat supply pipeline heat insulation structure according to claim 1, wherein slots (9) for inserting the guide plates (7) are formed in the surface of the heat shrinkage layer (1), and the inner bottom walls of the slots (9) and the inner end surfaces of the guide plates (7) are distributed at intervals.
4. A direct-buried heat supply pipeline heat insulation structure according to claim 3, characterized in that through holes (10) are formed in the surface of the guide plate (7) at equal intervals, the through holes (10) are radially arranged between the outer surface of the heat shrinkage layer (1) and the inner wall of the slot (9), and the guide rod (6) is arranged in the through holes (10) in a penetrating mode.
5. The direct-buried heat supply pipeline heat insulation structure according to claim 4, wherein an air passage (11) is formed in the guide plate (7), the top end of the air passage (11) is communicated with the through hole (10), and the bottom end of the air passage is communicated with the inner cavity of the slot (9).
6. A direct burial heating pipeline heat insulation structure according to claim 3, wherein inner flexible sealing rings (12) sleeved on the pipeline are arranged on the inner walls of the two sides of the groove (5), and the end parts of the guide rods (6) penetrate through the inner sealing rings and are fixedly connected with the inner walls of the two sides of the groove (5).
7. The direct-buried heat supply pipeline heat preservation structure according to claim 1, wherein annular inner mounting grooves (13) are formed in two ends of the first pipe sleeve (3), and outer flexible sealing rings (14) sleeved on the pipeline are arranged in the inner mounting grooves (13).
8. The direct-buried heat supply pipeline heat insulation structure according to claim 7, wherein the notch of the inner mounting groove (13) extends outwards along the radial direction to form an annular inner ring portion (15), an outer mounting groove (16) is formed in the second pipe sleeve (4) towards one end of the pipe butt joint, an outer ring portion (17) extends inwards along the radial direction in the notch of the outer mounting groove (16), the inner ring portion (15) is located in the outer mounting groove (16), and the inner end face of the outer ring portion (17) is sleeved on the first pipe sleeve (3).
9. A direct burial heating conduit insulation structure according to claim 8, wherein an outer flexible sealing ring (18) is provided in the outer mounting groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322279543.9U CN220582013U (en) | 2023-08-23 | 2023-08-23 | Heat insulation structure of directly buried heat supply pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322279543.9U CN220582013U (en) | 2023-08-23 | 2023-08-23 | Heat insulation structure of directly buried heat supply pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220582013U true CN220582013U (en) | 2024-03-12 |
Family
ID=90111528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322279543.9U Active CN220582013U (en) | 2023-08-23 | 2023-08-23 | Heat insulation structure of directly buried heat supply pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220582013U (en) |
-
2023
- 2023-08-23 CN CN202322279543.9U patent/CN220582013U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209444958U (en) | A kind of whirl compensator sealing structure with the level on outer tube inner convex platform | |
| CN205642116U (en) | Fluoroplastics pipe heat exchanger tube and tube plate's connection, seal structure | |
| CN220582013U (en) | Heat insulation structure of directly buried heat supply pipeline | |
| CN105186439B (en) | Cable joint seal structure of high-temperature electric submersible pump | |
| CN111396184A (en) | Novel engine exhaust pipe sealing structure | |
| CN201593881U (en) | Medium-high temperature straight-through solar collector tube mechanical seal device | |
| CN213239882U (en) | Rack test box shaft hole structure with prevent condensation function | |
| CN208011128U (en) | A kind of split type expansion joint | |
| CN203189960U (en) | Vacuum insulation pipe | |
| CN113819665B (en) | Solar collector connection structure and collector | |
| CN2243016Y (en) | Flat-tube type seal ring pipeline expansion joint | |
| CN212804751U (en) | Buried pipeline thermal compensation structure | |
| CN221054519U (en) | Direct-buried heat supply pipeline with direct-buried compensator device | |
| CN2235545Y (en) | Pressure equilibrium and sleeve type compensator | |
| CN218331321U (en) | Performance detection device for heat preservation pipe in extreme environment | |
| CN212056198U (en) | High-temperature hot air conveying pipe | |
| CN221569811U (en) | Full external pressure balance type compensator | |
| CN218000754U (en) | Pull-plug type vacuum male-female connector | |
| CN204942881U (en) | A kind of low temperature vacuum thermal insulation pipeline single axial expansion joint | |
| CN221120686U (en) | Side-mounted bearing seat | |
| CN2129364Y (en) | Self-sealing slide adaptor | |
| CN209343922U (en) | A kind of transformer monomer-type low pressure double-seal casing pipe | |
| JP3349278B2 (en) | Seal structure | |
| CN205036883U (en) | Ball valve that uses in high viscosity medium | |
| CN216242723U (en) | Sealing device for low through-wall pipe of gas turbine power plant furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |