CN203809885U - Heat-insulating pipe - Google Patents
Heat-insulating pipe Download PDFInfo
- Publication number
- CN203809885U CN203809885U CN201320698076.7U CN201320698076U CN203809885U CN 203809885 U CN203809885 U CN 203809885U CN 201320698076 U CN201320698076 U CN 201320698076U CN 203809885 U CN203809885 U CN 203809885U
- Authority
- CN
- China
- Prior art keywords
- layer
- heat insulation
- pipe
- heat
- insulation layer
- 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.)
- Expired - Lifetime
Links
- 239000006260 foam Substances 0.000 claims abstract description 16
- 239000010410 layer Substances 0.000 claims description 169
- 238000009413 insulation Methods 0.000 claims description 91
- 230000004888 barrier function Effects 0.000 claims description 66
- 239000011241 protective layer Substances 0.000 claims description 48
- 229920003023 plastic Polymers 0.000 claims description 37
- 239000004033 plastic Substances 0.000 claims description 37
- -1 polyethylene terephthalate Polymers 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 24
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 18
- 239000011496 polyurethane foam Substances 0.000 claims description 18
- 229920002554 vinyl polymer Polymers 0.000 claims description 14
- 229920001748 polybutylene Polymers 0.000 claims description 12
- 239000004964 aerogel Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 11
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 8
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 claims description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 4
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 4
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 7
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 30
- 230000000694 effects Effects 0.000 description 19
- 230000008901 benefit Effects 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 210000000497 foam cell Anatomy 0.000 description 3
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The utility model provides a heat-insulating pipe. The heat-insulating pipe comprises a working pipe, a heat-insulating layer which is sheathed on the working pipe and an outer protection layer which is sheathed on the heat-insulating layer, wherein a gap exists between the outer wall of the heat-insulating layer and the inner wall of the outer protection layer, and a blocking layer which is used for preventing air inside and outside the heat-insulating pipe from penetrating through the outer protection layer and circulating is formed in the gap. In the long-term operation process of a pipe network, due to the influence of temperature, air in foam holes of the heat-insulating layer penetrates through the walls of the foam holes and an outer protection pipe and is diffused into the surrounding environment. After the blocking layer is arranged, when the air flows to the blocking layer, the air is blocked by the blocking layer, so that the air cannot continuously flow to the outer protection layer and cannot be diffused into the external environment; moreover, when air in the external environment seeps to the blocking layer through the outer protection layer, the air is also blocked by the blocking layer, so that the external air cannot continuously flow. Since the blocking layer prevents the air from flowing between the heat-insulating layer and the outer protection layer, the heat insulating performance of the heat-insulating layer is guaranteed, and the heat loss of the pipe network is reduced.
Description
Technical field
The utility model relates to a kind of insulated piping, belongs to medium transport pipe insulation technical field.
Background technique
In central heat supply, cooling field, the pipeline for medium transport is all needed to carry out insulation, to guarantee the heat-insulating property of pipeline in medium transport process.Insulated piping of the prior art is generally made up of working pipe, heat insulation layer and outer pillar.
As shown in Figure 1; insulated piping of the prior art mostly comprises for delivery of the working pipe 11 of medium, mainly bears the heat insulation layer 12 of heat insulating function and the outer pillar 13 for outer protection; wherein; heat insulation layer 12 is socketed on the outer wall of outer wall of working pipe 11 and fixes with its laminating, and outer pillar 13 is socketed in outer wall upper of heat insulation layer 12 and fixes with its laminating.The main porous foams material that adopts of heat insulation layer 12, for example polyurethane foam, owing to containing many tiny foam holes in polyurethane foam, in foam hole, store again a large amount of gas, such as carbon dioxide, cyclopentane etc., these gases are under flowing state not, and thermal conductivity is extremely low, the heat-insulating property that has ensured the heat insulation layer 12 of polyurethane foam formation, makes insulation effect better.But, outer pillar of the prior art generally adopts plastic pipe, for example high density polyethylene pipe, this material has certain gas and moisture transmittance, in the During Process of Long-term Operation of pipe network, temperature influence, gas in foam hole can see through foam cell walls and penetrate outer pillar 13 and be diffused in surrounding environment, meanwhile, the gas such as water vapor, oxygen in external environment also can be penetrated in foam layer by the outer pillar 13 of plastics, can accelerate like this aging of foam layer, thereby be easy to reduce the heat-insulating property of heat insulation layer 12, increase the loss of heat.
Model utility content
Therefore, technical problem to be solved in the utility model is to overcome in existing insulated piping between heat insulation layer and outer pillar owing to existing gas communication to cause the insulation effect of insulated piping to reduce and the large defect of heat loss, thereby a kind of insulated piping with barrier layer that ensures the insulation effect of heat insulation layer and can reduce the thermal loss of whole pipe network is provided.
For this reason, the utility model provides a kind of insulated piping, comprise working pipe, be socketed in the heat insulation layer in described working pipe and be socketed in the outer protective layer on described heat insulation layer, between the outer wall of described heat insulation layer and the inwall of described outer protective layer, there is gap, in described gap, form the barrier layer of outer protective layer circulation described in the gas in the foam hole that prevents described heat insulation layer in insulated piping and the gas permeation in external environment.
Described gap is annular gap, and described barrier layer is fitted with the outer wall of described heat insulation layer and the inwall of described outer protective layer respectively.
Described gap is annular gap, the fit inwall of described outer protective layer form integrated pipeline with described outer protective layer of described barrier layer.
Described gap is annular gap, the fit outer wall of described heat insulation layer form integrated pipeline with described heat insulation layer of described barrier layer.
Described barrier layer is the individual layer of a kind of formation in polyethylene terephthalate, PEN, polyethylene vinyl acetate copolymer or ethylene-vinyl alcohol copolymer or the composite bed that the stack of multiple individual layer forms.
Described barrier layer is that thickness is the film of 0.01-2mm.
Described heat insulation layer comprises polyurethane foam.
Described heat insulation layer comprises aerogel layer.
Described heat insulation layer comprises polyurethane foam and the aerogel layer between described polyurethane foam and working pipe.
Described outer protective layer is the one in polyvinyl plastics layer, the polypropylene plastics bed of material, polybutylene plastic layer or frp layer.
Described working pipe is the one in metal tube, vinyl tube, pp pipeline, polybutylene plastic tube or the composite plastic pipe with barrier layer.
Described polyvinyl plastic pipeline is the one in PEX plastic tube, PE pipe, PE-RT pipe.
The insulated piping that the utility model provides has the following advantages:
1. the insulated piping that the utility model provides, its heat insulation layer has the barrier layer that prevents the inside and outside gas permeation outer protective layer circulation of insulated piping with being enclosed within the gap of the outer protective layer on heat insulation layer outer wall; In long-term pipe network operation process, temperature influence, the gas permeation foam cell walls in foam hole outwards flows, and stops, thereby make this gas cannot continue to flow to outer protective layer when gas flow is blocked layer during to barrier layer, more cannot diffuse to external environment; And, in the time that the gas in external environment is penetrated into barrier layer by outer protective layer, is blocked equally layer and stops, thereby make ambient atmos cannot continue to flow.Barrier layer has intercepted flowing that the inside and outside gas of insulated piping is undertaken by outer protective layer, thereby has ensured the insulation effect of heat insulation layer, has reduced the thermal loss of whole pipe network.
2. the insulated piping that the utility model provides, barrier layer is fitted with the outer wall of heat insulation layer and the inwall of outer protective layer respectively, be that barrier layer has filled up the annular gap between heat insulation layer and outer protective layer, the gas permeation outer protective layer that can farthest intercept in gas and the external environment of heat insulation layer flows, the thermal conductivity that ensures heat insulation layer can not increase, and insulation effect is best.
3. the insulated piping that the utility model provides, barrier layer is the composite bed that after the individual layer of a kind of individual layer of formation in polyethylene terephthalate, PEN, polyethylene vinyl acetate copolymer or ethylene-vinyl alcohol copolymer or the individual layer of multiple formation or multiple formation, stack forms.Because above-mentioned material is high barrier material, high barrier material has stronger water vapor barrier property, prevents the problem of the heat insulation layer thermal conductivity increase causing due to water vapor permeable, has ensured that heat insulation layer has good insulation effect.
4. the insulated piping that the utility model provides, heat insulation layer can form separately for polyurethane foam, or formed separately by aerogel layer, also can jointly be formed by polyurethane foam and the aerogel layer between polyurethane foam and working pipe, aerogel can bear the high temperature of 1000 DEG C, be applicable to the thermal insulation that pipeline high temperature media is carried, have extraordinary effect of heat insulation; Polyurethane foam is owing to containing many tiny foam holes, in foam hole, store in a large number again immobilising gas, as carbon dioxide, cyclopentane etc., these gases can not run off under the effect of barrier layer, make the thermal conductivity of heat insulation layer stable, this has ensured the insulation effect of heat insulation layer.
5. the insulated piping that the utility model provides, outer protective layer is the one in polyvinyl plastics layer, the polypropylene plastics bed of material, polybutylene plastic layer.It is little that the feature of polyvinyl plastics layer and the polypropylene plastics bed of material is moisture absorption, mechanical property excellence, and electrical insulation capability is good; The advantage of polybutylene plastic layer is to have very high temperature tolerance, endurance, chemical stability and plasticity.Above-mentioned material Guan Jun is the outer protective layer that can be used as insulated piping, all can play the effect of protection barrier layer and heat insulation layer material, has ensured the insulation effect of heat insulation layer.
6. the insulated piping that the utility model provides, working pipe is the one in steel pipe, vinyl tube, polypropylene tube, polybutylene plastic tube or the composite plastic pipe with barrier layer.It is little that the feature of vinyl tube and pp pipeline is moisture absorption, and electrical insulation capability is good; The advantage of polybutylene plastic tube is to have very high temperature tolerance, endurance, chemical stability and plasticity; Composite plastic pipe with barrier layer can ensure the quality of fed sheet of a media; It is high that steel pipe has intensity, high temperature resistant, corrosion resistance and the strong feature of wear-resisting property; Aforementioned tubes is all to make the excellent material of working pipe, all can ensure the stability of working pipe.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the transverse cross-sectional view of the insulated piping before transformation;
Fig. 2 is the transverse cross-sectional view of insulated piping of the present utility model;
Fig. 3 is the longitudinal sectional drawing of insulated piping of the present utility model;
In figure, reference character is expressed as:
11,21-working pipe, 12,22-heat insulation layer, the outer pillar of 13-, 221-aerogel layer, 222-polyurethane foam, 23-barrier layer, 24-outer protective layer.
Embodiment
embodiment 1
The present embodiment provides a kind of insulated piping, comprise working pipe 21, be socketed in the heat insulation layer 22 in described working pipe 21 and be socketed in the outer protective layer 24 on heat insulation layer 22, the inwall of the outer wall of heat insulation layer 22 and outer protective layer 24 forms gap, is formed with the barrier layer 23 that prevents that the inside and outside gas permeation outer protective layer 24 of insulated piping from circulating in gap.
Technique scheme is core technology scheme of the present utility model, as shown in Figure 2, the insulated piping presenting in this technological scheme compared with the existing technology, in the gap of heat insulation layer 22 and outer protective layer 24, set up barrier layer 23, barrier layer 23 is for preventing inside and outside insulated piping described in gas permeation that outer protective layer 24 circulates, in long-term pipe network operation process, temperature influence, gas permeation foam cell walls in heat insulation layer 22 foam holes outwards flows, when being blocked layer 23 during to barrier layer 23, gas flow stops, thereby make this gas cannot continue to flow to outer protective layer 24, more cannot diffuse to external environment, and, in the time that the gas in external environment is penetrated into barrier layer 23 by outer protective layer 24, is blocked equally layer 23 and stops, thereby make ambient atmos cannot continue to flow in heat insulation layer 22.The gas permeation outer protective layer 24 that barrier layer 23 has intercepted in gas and the external environment of heat insulation layer 22 flows, thereby has ensured the insulation effect of heat insulation layer 22, has reduced the heat loss of whole pipe network.
Particularly, in the present embodiment, as shown in Fig. 2 or 3, described gap is annular gap, and barrier layer 23 fills up whole annular gap and fits with the outer wall of heat insulation layer 22 and the inwall of outer protective layer 24 respectively.In the time that gap is annular gap, barrier layer 23 just can wrap heat insulation layer 22 completely, to stop the gas flow between heat insulation layer 22 and outer protective layer 24, ensures the thermal conductivity minimum of heat insulation layer 22, and insulation effect is best.Described barrier layer 23 is ethylene-vinyl alcohol copolymer, certainly, as the one distortion of the present embodiment, described barrier layer 23 can also be a kind of individual layer of formation or the composite bed of multiple formation in polyethylene terephthalate, PEN, polyethylene vinyl acetate copolymer and ethylene-vinyl alcohol copolymer.Above-mentioned material is high barrier material, high barrier material has stronger gas and moisture barrier, thereby the problem that heat insulation layer 22 thermal conductivitys that can prevent from causing due to gas and moisture penetration increase, has ensured that heat insulation layer 22 has good insulation effect.And, the film that described barrier layer 23 is 2mm for thickness.Adopt the film of this kind of thickness not only can ensure heat-insulating property and can improve working life as the outer protective layer of barrier layer 23 and cooperation high-density polyethylene plastics.
As one distortion, the thickness of described barrier layer 23 can also change in the scope of 0.01mm-2mm.
In order to improve insulation effect, in the present embodiment, as shown in Fig. 2 or 3, heat insulation layer 22 is and the heat-insulated pipe of the coaxial setting of described working pipe 21 that heat-insulated pipe comprises polyurethane foam 222 and the aerogel layer 221 between polyurethane foam 222 and working pipe 21.Aerogel can bear the high temperature of 1000 DEG C, has extraordinary effect of heat insulation.Polyurethane foam 222, owing to containing many tiny foam holes, is stored again immobilising gas in a large number in foam hole, as carbon dioxide, cyclopentane etc., make heat-insulated pipe can carry high temperature media pipeline, and ensure the heat-insulating property of heat insulation layer.Certainly, heat insulation layer 22 can also be known conventional thermoinsulation material, and such as fibrous glass wool, rock wool etc. are not described in detail herein.
As the one distortion of the present embodiment, described heat-insulated pipe also can only be formed separately by polyurethane foam 222, or is formed separately by aerogel layer 221.In order further to ensure insulation effect, in the present embodiment, as shown in Fig. 2 or 3, described outer protective layer 24 is high-density polyethylene plastics layer.As the one distortion of the present embodiment, described outer protective layer 24 can also be the one in the polypropylene plastics bed of material or polybutylene plastic layer.It is little that the feature of polyvinyl plastics layer and the polypropylene plastics bed of material is moisture absorption, and electrical insulation capability is good; The advantage of polybutylene plastic layer is to have very high temperature tolerance, endurance, chemical stability and plasticity.Above-mentioned material is all to make the excellent material of outer protective layer 24, all can play the effect of protection barrier layer and heat insulation layer material, has ensured that heat insulation layer 22 avoids the impact of external environment, guarantees that it has good insulation effect.
Working pipe 21 is the one in metal tube, vinyl tube, polypropylene tube, polybutylene plastic tube or the composite plastic pipe with barrier layer.It is little that the feature of vinyl tube and pp pipeline is moisture absorption, and electrical insulation capability is good; The advantage of polybutylene plastic tube is to have very high temperature tolerance, endurance, chemical stability and plasticity; Composite plastic pipe with barrier layer can ensure the quality of fed sheet of a media; It is high that steel pipe has intensity, high temperature resistant, corrosion resistance and the strong feature of wear-resisting property; Aforementioned tubes is all to make the excellent material of working pipe 21, all can ensure the stability of working pipe 21.
In addition, vinyl tube, as the use of working pipe 21, can be plastic pipe based on cross-linked polyethylene, polyethylene pipe or refractory polyethylene pipe.
embodiment 2
The present embodiment is the distortion on embodiment 1 basis, and itself and embodiment's 1 difference is: the fit outer wall of heat insulation layer 22 of barrier layer 23, and not with the inwall laminating of outer protective layer 24, that is, barrier layer 23 does not fill up described gap.The benefit arranging is like this: the first, save the material of barrier layer 23, and can not reduce heat-insulating property; The second, because barrier layer 23 is not fitted with outer protective layer 24, be damaged while needing maintenance at outer protective layer 24, can reduce the infringement to barrier layer 23 as far as possible.
At this, it should be noted that, the fit mode of outer wall of described heat insulation layer 22 of described barrier layer 23 has two kinds, first, described barrier layer 23 fit the outer wall of described heat insulation layer 22 and with the form as one pipeline of moulding of described heat insulation layer 22; The second, described barrier layer 23 outer wall of described heat insulation layer 22 of fitting, but heat insulation layer 22 is body formed with 23 points of described barrier layers, then links together by adhesive layer or other modes.
embodiment 3
The present embodiment is the distortion on embodiment 1 basis, and itself and embodiment's 1 difference is: the fit inwall of outer protective layer 24 of barrier layer 23, and not with the outer wall laminating of heat insulation layer 22, that is, barrier layer 23 does not fill up described gap.The benefit arranging is like this: the first, save the material of barrier layer 23, and can not reduce heat-insulating property; The second, because barrier layer 23 is not fitted with heat insulation layer 22, be damaged while needing maintenance at heat insulation layer 22, can reduce the infringement to barrier layer 23 as far as possible.
At this, it should be noted that, the fit mode of inwall of described outer protective layer 24 of described barrier layer 23 has two kinds, first, described barrier layer 23 fit the inwall of described outer protective layer 24 and with outer protective layer 24 by the form as one pipeline of moulding of the mode of composite co-extruding; The second, described barrier layer 23 inwall of described outer protective layer 24 of fitting, but outer protective layer 24 is body formed with 23 points of described barrier layers, then links together by adhesive layer or other modes.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And within the protection domain that the apparent variation of being extended out thus or variation are still created in the utility model.
Claims (12)
1. an insulated piping, comprise working pipe (21), be socketed in the heat insulation layer (22) in described working pipe (21) and be socketed in the outer protective layer (24) on described heat insulation layer (22), it is characterized in that: between the outer wall of described heat insulation layer (22) and the inwall of described outer protective layer (24), there is gap, in described gap, form the barrier layer (23) of outer protective layer (24) circulation described in the gas in the foam hole that prevents described heat insulation layer (22) in insulated piping and the gas permeation in external environment.
2. insulated piping according to claim 1, is characterized in that: described gap is annular gap, and described barrier layer (23) is fitted with the outer wall of described heat insulation layer (22) and the inwall of described outer protective layer (24) respectively.
3. insulated piping according to claim 1, is characterized in that: described gap is annular gap, the fit inwall of described outer protective layer (24) form integrated pipeline with described outer protective layer (24) of described barrier layer (23).
4. insulated piping according to claim 1, is characterized in that: described gap is annular gap, the fit outer wall of described heat insulation layer (22) form integrated pipeline with described heat insulation layer (22) of described barrier layer (23).
5. according to the insulated piping described in any one in claim 1-4, it is characterized in that: the composite bed that the individual layer that described barrier layer (23) is a kind of formation in polyethylene terephthalate, PEN, polyethylene vinyl acetate copolymer or ethylene-vinyl alcohol copolymer or the stack of multiple individual layer form.
6. insulated piping according to claim 5, is characterized in that: the film that described barrier layer (23) is 0.01-2mm for thickness.
7. insulated piping according to claim 6, is characterized in that: described heat insulation layer (22) comprises polyurethane foam (222).
8. insulated piping according to claim 6, is characterized in that: described heat insulation layer (22) comprises aerogel layer (221).
9. insulated piping according to claim 6, is characterized in that: described heat insulation layer (22) comprise polyurethane foam (222) and be positioned at described polyurethane foam (222) and described working pipe (21) between aerogel layer (221).
10. insulated piping according to claim 6, is characterized in that: described outer protective layer (24) is the one in polyvinyl plastics layer, the polypropylene plastics bed of material, polybutylene plastic layer.
11. insulated pipings according to claim 6, is characterized in that: described working pipe (21) is the one in metal tube, vinyl tube, polypropylene tube, polybutylene plastic tube or the composite plastic pipe with barrier layer.
12. insulated pipings according to claim 11, is characterized in that: described vinyl tube is the one in PEX plastic tube, PE pipe, PE-RT pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698076.7U CN203809885U (en) | 2013-11-07 | 2013-11-07 | Heat-insulating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320698076.7U CN203809885U (en) | 2013-11-07 | 2013-11-07 | Heat-insulating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809885U true CN203809885U (en) | 2014-09-03 |
Family
ID=51448634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320698076.7U Expired - Lifetime CN203809885U (en) | 2013-11-07 | 2013-11-07 | Heat-insulating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809885U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673995A (en) * | 2015-12-21 | 2016-06-15 | 江苏洁润管业有限公司 | Nanometre aerogel heat-insulation pipeline |
| CN106323066A (en) * | 2016-08-16 | 2017-01-11 | 江苏洁润管业有限公司 | Novel aerogel geothermal pipe |
| CN110402870A (en) * | 2019-09-02 | 2019-11-05 | 福建亚通新材料科技股份有限公司 | A kind of deep-sea breeding pipeline |
-
2013
- 2013-11-07 CN CN201320698076.7U patent/CN203809885U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673995A (en) * | 2015-12-21 | 2016-06-15 | 江苏洁润管业有限公司 | Nanometre aerogel heat-insulation pipeline |
| CN106323066A (en) * | 2016-08-16 | 2017-01-11 | 江苏洁润管业有限公司 | Novel aerogel geothermal pipe |
| CN110402870A (en) * | 2019-09-02 | 2019-11-05 | 福建亚通新材料科技股份有限公司 | A kind of deep-sea breeding pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203809885U (en) | Heat-insulating pipe | |
| CN201982890U (en) | Prefabricated polyurethane foam insulating pipe for trenches | |
| CN203907126U (en) | Cold insulation composite material structure for ultralow temperature pipeline | |
| CN203686401U (en) | Novel heat-insulating pipe connector | |
| CN203809955U (en) | Novel heat insulation pipeline | |
| CN203809956U (en) | Improved heat insulation pipeline | |
| CN207005476U (en) | A kind of PP R polyurethane thermal pipes | |
| CN206112298U (en) | Prefabricated direct -burried heat preservation composite plastic pipe of polypropylene | |
| JP2004270943A (en) | Thermal insulation conduit | |
| CN205479988U (en) | High temperature resistant polyurethane thermal insulation pipe way | |
| CN204226958U (en) | Lng vacuum tube | |
| CN203847920U (en) | Winding type heat insulation pipeline | |
| CN202901558U (en) | Heat preservation pipe | |
| CN205678362U (en) | A kind of insulating tube with heating function | |
| CN210567002U (en) | Self-heat-preservation pipe of pipeline heat-preservation system | |
| CN203847843U (en) | Novel wound heat insulation pipeline | |
| CN203223653U (en) | Prefabricated direct-buried insulating pipe | |
| CN203686483U (en) | Heat-insulated pipe joint | |
| CN204986231U (en) | Low temperature medium transport uses adiabatic pipeline | |
| CN204590288U (en) | Polyurethane thermal-insulation clad plate | |
| CN203795628U (en) | Thermal insulation board | |
| CN203704358U (en) | Heat-pump water heater water tank | |
| CN207034420U (en) | A kind of humidity discharging type polyurethane insulating tube | |
| CN205896562U (en) | Integral type friendly air conditioner insulating tube | |
| CN206090900U (en) | Novel ultralow heat recombination board of leading |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180312 Address after: No. 6, Liu Fang North Street, Chaoyang District, Beijing City, Beijing Patentee after: BEIJING DISTRICT HEATING Group Address before: No. 12, Yuncheng street, Beijing economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING HTN PIPELINE EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |