CN203907126U - Cold insulation composite material structure for ultralow temperature pipeline - Google Patents
Cold insulation composite material structure for ultralow temperature pipeline Download PDFInfo
- Publication number
- CN203907126U CN203907126U CN201420340977.3U CN201420340977U CN203907126U CN 203907126 U CN203907126 U CN 203907126U CN 201420340977 U CN201420340977 U CN 201420340977U CN 203907126 U CN203907126 U CN 203907126U
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- China
- Prior art keywords
- cold insulation
- ultralow temperature
- pipeline
- layer
- heat insulation
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- 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 - Fee Related
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- 238000009413 insulation Methods 0.000 title claims abstract description 84
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000004964 aerogel Substances 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 38
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 17
- 239000011241 protective layer Substances 0.000 claims description 16
- 239000004411 aluminium Substances 0.000 claims description 11
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 238000003032 molecular docking Methods 0.000 claims description 5
- 239000011152 fibreglass Substances 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 22
- 229920000582 polyisocyanurate Polymers 0.000 abstract description 15
- 239000011495 polyisocyanurate Substances 0.000 abstract description 15
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 5
- 239000011496 polyurethane foam Substances 0.000 abstract description 5
- 239000006260 foam Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 19
- 230000005587 bubbling Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000000962 organic group Chemical group 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Thermal Insulation (AREA)
Abstract
The utility model belongs to the technical field of pipeline engineering, and discloses a cold insulation composite material structure for an ultralow temperature pipeline, which can achieve cold insulation and heat insulation. The cold insulation composite material structure for the ultralow temperature pipeline comprises a cylindrical pipe clamp nested onto a pipeline, wherein the pipe clamp comprises a metal protecting layer, an outer heat insulation layer, a damp-proof layer and an inner heat insulation layer which adopt cylindrical structures and are arranged sequentially from outside to inside; the outer heat insulation layer is made of an aerogel blanket nanometer material; and the inner heat insulation layer is made of polyisocyanurate foam. The aerogel blanket nanometer material has good heat insulation and fireproof effects, and the polyurethane foam material has a good cold insulation effect, so that the outer heat insulation layer has good fireproof and heat insulation effects at the high temperature, and the inner heat insulation layer has a good cold insulation effect at the low temperature. The cold insulation composite material structure is simple in structure and convenient to manufacture, can meet the cold insulation requirement and the heat insulation and fireproof requirements and can avoid the cold bridge or heat bridge phenomenon of the pipeline, so that energy is saved.
Description
Technical field
The utility model relates to a kind of piping facility, relate to specifically a kind of can cold insulation again can thermal protection ultralow temperature pipeline cold insulation composite structure, be particularly useful for LNG pipe-line construction, belong to piping support and hanger technical field.
Background technique
In recent years, the consumption proportion of Global Oil and coal is always on a declining curve, only has rock gas keeping vigorous growth, it is predicted, rock gas became the first in the world energy by replacement oil between following 20 to 30 years.Along with the whole world is to the natural continuous growth of asking demand, it is more and more important that the transportation of rock gas, storage efficiency also become, and 600 times of the density of liquified natural gas (LNG) the chances are gaseous natural gas, it is higher than the efficiency of transport natural gas that this makes to transport LNG, therefore LNG has become a kind of important transportation mode of rock gas, and this just needs the laying of a large amount of cold insulation pipelines.
The transmission feature of LNG is low temperature (162 ℃), normal pressure transmission, so the fireproof performance requirement to the cold insulation effect of LNG delivering pipe, cold insulation material is very high, the cold insulation system of the key equipment of domestic a lot of natural gas liquefaction plants, technological process, pipeline and cold insulation pipe holder are from external introduction.Along with the in-depth of energy conservation, pipeline heat loss is had higher requirement from links such as design, selection, constructions.Due to the development and application of new and effective thermal insulating material, heat preservation method update and perfect, aspect improving pipe insulation level, reducing pipeline heat loss, obtained remarkable result, so the insulation of pipeline body is gradually improved.But, insulation for the conduit saddle at pipeline support position is still a weak link, the current direct frame of Some Domestic pipeline is in rack beams or adopt steel support type conduit saddle in order to support pipeline, metallic material has good heat-conducting property, exposed metal covering can be directly and atmosphere carry out heat exchange, discontinuous due to thermal insulating material, will form at steel support type conduit saddle place " heat bridge " or " cold bridge ", heat or the cold of pipeline are are seriously scattered and disappeared, cause great energy waste.Although also have at present some enterprises to adopt Thermal insulative pipe carrier, existing Thermal insulative pipe carrier effect of heat insulation should be not, thermal loss is still larger.
In recent years along with the improvement of chemical process and from reducing the consideration of construction investment cost angle, occurred that gap carries medium and the larger pipeline of the temperature difference between different medium of two or more temperature cases, for example: the material conveying pipe from harbour to loading place, if require to build respectively according to different medium the conveyance conduit matching, not only construction investment cost is higher but also the utilization ratio of conveyance conduit is not high; And for example, the medium that in rubber device, same pipeline walked has high temperature, has low temperature again, therefore just requires the energy saving pipeline conduit saddle (suspension and support) of joining on pipeline should meet load requirement, also wants satisfied temperature working condition requirement, also need to possess energy conservation characteristic, energy saving simultaneously.Therefore, build a pipeline that can simultaneously meet various temperature case media and will save greatly construction investment cost, also make the conveying utilization ratio of pipeline be improved.But existing heat insulation or every cold conduit saddle, be difficult to meet the requirement of the various temperature operating mode of this type of pipeline.
Summary of the invention
The ultralow temperature pipeline cold insulation composite structure that cold insulation when the purpose of this utility model is to provide a kind of thermal protection can meet medium transport time to require to meet again low temperature to carry requires, easily forms the technical problem of " heat bridge " or " cold bridge " to solve the pipeline of prior art at conduit saddle place.
The utility model adopts following technological scheme: a kind of ultralow temperature pipeline cold insulation composite structure; comprise for being set in and on pipeline, be pipe clamp cylindraceous; described pipe clamp comprises coat of metal, external thermal insulation, vapor barrier and the inner thermal insulating layer of the cylinder-like structure setting gradually from outside to inside; described external thermal insulation is made by aerogel blanket nanometer material, and described inner thermal insulating layer is made by gathering isocyanuric acid fat PIR material.
Between described coat of metal and external thermal insulation, be fixed with the intermediate protective layer that aluminium or aluminium plastic material are made.
On the outer circumferential face of described external thermal insulation, inner thermal insulating layer, intermediate protective layer, be wound with respectively the fixing belt that fiberglass adhesive tape is made.
The coat of metal of described cylinder-like structure, external thermal insulation, vapor barrier and inner thermal insulating layer are all to be formed by least two semicircles or arcuate structure docking.
Described poly-isocyanuric acid fat PIR material has one deck or two-layer or three layers.
Described poly-isocyanuric acid fat PIR material is that colour hard bubbles.
The thickness of described coat of metal is 0.5 ~ 5mm.
The thickness of described external thermal insulation is 10 ~ 50mm, described external thermal insulation have two-layer or two-layer more than.
The thickness of described inner thermal insulating layer is 20 ~ 100mm.
The beneficial effects of the utility model are: due to the good heat-insulation effect of aerogel blanket nanometer material, poly-isocyanuric acid fat PIR material every cold effective, therefore when high temperature, external thermal insulation plays good thermal protection effect, inner thermal insulating layer also can play certain thermal protection effect simultaneously, can effectively prevent that heat loss in pipeline is in atmosphere, heat insulation effect is better than the effect of independent use aerogel blanket; When low temperature, inner thermal insulating layer plays good cold insulation effect, and external thermal insulation also can play certain cold insulation effect simultaneously, prevents that external heat from entering in conveyance conduit, and cold insulation successful is better than the effect of independent use polyurethane foam material.The utility model is simple in structure, easily manufactured, can meet thermal protection and require can meet cold insulation requirement again, avoids pipeline to occur the phenomenon of cold bridge or heat bridge, thereby can energy saving.And aerogel blanket has good fireproof performance, humidity resistance, for the utility model in use provides safety assurance; The density of poly-isocyanuric acid fat PIR material is little, makes the lightweight of the utility model structure.The utility model is particularly useful for LNG pipeline, can meet the heat-insulating property requirement of LNG pipeline, can shorten the completion time of project, accelerates the developing steps of China LNG.
Further, aluminium or aluminium plastic material have good flame retarding and ageing resistance, so the intermediate protective layer that aluminium or aluminium plastic material are made can further increase Security of the present utility model.
Further, fixing belt can prevent external thermal insulation, inner thermal insulating layer, intermediate protective layer axial float on pipeline, makes the utility model structure more stable.
Further, the cylindrical metal protective layer, external thermal insulation, vapor barrier and the inner thermal insulating layer that by least two semicircles or arcuate structure docking, are formed, make conduit saddle of the present utility model can be easy to assembling.
Further, two strata isocyanuric acid fat PIR materials can further improve of the present utility model heat insulation and every cold effect.
Further, adopt colored hard bubbling can avoid hard bubbling because of the aging generation color change of oxidation flavescence, can also extend the working life of hard bubbling, and the goods after painted are conducive to differentiate, can be applicable to the different parts of the different pipeline of diameter or same pipeline, so that rapid construction.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment's of the utility model structural representation;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the partial enlarged drawing of I part in Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
A kind of specific embodiment of the present utility model as shown in Figure 1 to Figure 3, ultralow temperature pipeline cold insulation composite structure of the present utility model comprises for being set in and on pipeline 6, is pipe clamp cylindraceous, the pipe clamp of the present embodiment comprises the coat of metal 1 of the cylinder-like structure setting gradually from outside to inside, intermediate protective layer 2, external thermal insulation 3, vapor barrier 4 and inner thermal insulating layer 5, the direct fixed packet of inner thermal insulating layer 5 overlays on outside pipeline 6, described external thermal insulation 3 is made by aerogel blanket nanometer material, described inner thermal insulating layer 5 is made by poly-isocyanuric acid fat PIR material, intermediate protective layer 2 is made by aluminium plastic material.On the outer circumferential face of external thermal insulation 3, inner thermal insulating layer 5, intermediate protective layer 2, be wound with respectively the fixing belt 7 that fiber glass material is made; on the outer circumferential face of coat of metal 1, be wound with Stainless Steel Band 8; fixing belt 7 and Stainless Steel Band 8 can prevent that external thermal insulation, inner thermal insulating layer, intermediate protective layer and coat of metal are along pipeline axial play, make conduit saddle structure more stable.
Poly-isocyanuric acid fat PIR material in the present embodiment is total two-layer, and every strata isocyanuric acid fat PIR is the docking of semicircular arc structure by two to form a cylinder-like structure, at joint, is filled with sealer 51.Every layer of hard polyurethane foam of the present embodiment all adopts PIR material, PIR(polyisocyanurate polyester) be a kind of of hard polyurethane foam, it is the product that polyatomic alcohol polybasic alcohol and isocyanate reaction generate, can under being the condition of-115 ℃ ~ 280 ℃, temperature use, comprehensive thermal conductivity≤0.05W/M*K, can meet engineering mechanics performance requirement.
During at high temperature state use of the present embodiment, external thermal insulation plays good thermal protection effect, simultaneously inner thermal insulating layer also can play certain thermal protection effect, can effectively prevent that heat loss in pipeline is in atmosphere, and heat insulation effect is better than the effect of independent use aerogel blanket; While using under low-temperature condition, inner thermal insulating layer plays good cold insulation effect, and external thermal insulation also can play certain cold insulation effect simultaneously, prevents that external heat from entering in conveyance conduit, and cold insulation successful is better than the effect of independent use polyurethane foam material.The present embodiment is tested under rubber device work on the spot environment, conduit saddle of the present utility model can meet mechanics and temperature the requirement of-196 ℃ ~ 160 ℃, comprehensive thermal conductivity is not more than 0.02W/M*K, meet engineering mechanics performance requirement, can meet the energy saving pipeline branching hanger load requirement of joining on pipeline, also can satisfied temperature working condition requirement, also possess energy conservation characteristic, energy saving simultaneously.Be particularly useful for LNG pipeline, can meet the heat-insulating property requirement of LNG pipeline, can shorten the completion time of project, accelerate the developing steps of China LNG.
The utility model in the specific implementation; can select according to actual needs external thermal insulation, inner thermal insulating layer and the coat of metal of suitable thickness; for example, can adopt thickness is that the external thermal insulation of 10 ~ 50mm, inner thermal insulating layer and the thickness that thickness is 20 ~ 100mm are 0.5 ~ 5mm coat of metal.
The intermediate protective layer that aluminium plastic material between coat of metal and external thermal insulation is made not is necessary for the utility model, therefore, in other embodiment of the present utility model, can save intermediate protective layer.
In other embodiment of the present utility model, the number of plies of poly-isocyanuric acid fat PIR rigid foam material can arrange according to actual needs, can also adopt one deck or more than three layers and three layers.
In other embodiment of the present utility model, can also adopt colored poly-isocyanuric acid fat PIR rigid foam material, it is by adding organic color stuffing or improving technique, some organic group hard bubbling to be increased organic pigment macromolecule, thereby changed the color of hard bubbling through physics, chemical reaction when producing that colour hard bubbles.Its object is mainly: one, avoid hard bubbling because of the aging generation color change of oxidation flavescence; Two, delay the to hard bubble process of oxidation, extends the working life of hard bubbling; Three, the goods after painted are conducive to differentiate, and can be applicable to the different parts of the different pipeline of diameter or same pipeline, so that rapid construction.
In other embodiment of the present utility model, the material of intermediate protective layer can also be aluminium or other metallic composite.
In other embodiment of the present utility model, coat of metal, external thermal insulation, vapor barrier and inner thermal insulating layer can be integrated cylinder-like structures, can also be the cylinder-like structures being formed by more than two and two semicircles or arcuate structure docking.
In other embodiment of the present utility model; for preventing that external thermal insulation, inner thermal insulating layer, intermediate protective layer and coat of metal are along pipeline axial play, can also adopt viscose glue that external thermal insulation, inner thermal insulating layer, intermediate protective layer and coat of metal are fixed up.
Claims (9)
1. a ultralow temperature pipeline cold insulation composite structure; comprise for being set in and on pipeline, be pipe clamp cylindraceous; it is characterized in that: described pipe clamp comprises coat of metal (1), external thermal insulation (3), vapor barrier (4) and the inner thermal insulating layer (5) of the cylinder-like structure setting gradually from outside to inside; described external thermal insulation (3) is made by aerogel blanket nanometer material, and described inner thermal insulating layer (5) is made by poly-isocyanuric acid fat PIR material.
2. a kind of ultralow temperature pipeline cold insulation composite structure according to claim 1, is characterized in that: between described coat of metal (1) and external thermal insulation (3), be fixed with the intermediate protective layer (2) that aluminium or aluminium plastic material are made.
3. a kind of ultralow temperature pipeline cold insulation composite structure according to claim 2, is characterized in that: on the outer circumferential face of described external thermal insulation (3), inner thermal insulating layer (5), intermediate protective layer (2), be wound with respectively the fixing belt (7) that fiberglass adhesive tape is made.
4. according to a kind of ultralow temperature pipeline cold insulation composite structure described in claim 1 or 2 or 3, it is characterized in that: the coat of metal of described cylinder-like structure (1), external thermal insulation (3), vapor barrier (4) and inner thermal insulating layer (5) are all to be formed by least two semicircles or arcuate structure docking.
5. according to a kind of ultralow temperature pipeline cold insulation composite structure described in claim 1 or 2 or 3, it is characterized in that: described poly-isocyanuric acid fat PIR material has one deck or two-layer or three layers.
6. according to a kind of ultralow temperature pipeline cold insulation composite structure described in claim 1 or 2 or 3, it is characterized in that: described poly-isocyanuric acid fat PIR material is that colour hard bubbles.
7. according to a kind of ultralow temperature pipeline cold insulation composite structure described in claim 1 or 2 or 3, it is characterized in that: the thickness of described coat of metal (1) is 0.5 ~ 5mm.
8. according to a kind of ultralow temperature pipeline cold insulation composite structure described in claim 1 or 2 or 3, it is characterized in that: the thickness of described external thermal insulation (3) is 10 ~ 50mm, described external thermal insulation have two-layer or two-layer more than.
9. according to a kind of ultralow temperature pipeline cold insulation composite structure described in claim 1 or 2 or 3, it is characterized in that: the thickness of described inner thermal insulating layer (5) is 20 ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340977.3U CN203907126U (en) | 2014-06-25 | 2014-06-25 | Cold insulation composite material structure for ultralow temperature pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340977.3U CN203907126U (en) | 2014-06-25 | 2014-06-25 | Cold insulation composite material structure for ultralow temperature pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203907126U true CN203907126U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420340977.3U Expired - Fee Related CN203907126U (en) | 2014-06-25 | 2014-06-25 | Cold insulation composite material structure for ultralow temperature pipeline |
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| CN (1) | CN203907126U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156840A (en) * | 2015-09-24 | 2015-12-16 | 泰州市鑫润天冶金保温材料有限公司 | Heat insulation pipeline for conveying low-temperature medium |
| CN105202316A (en) * | 2015-10-14 | 2015-12-30 | 浙江振申绝热科技股份有限公司 | Pipeline heat preservation system |
| CN107419662A (en) * | 2017-08-23 | 2017-12-01 | 柳州欧维姆机械股份有限公司 | A kind of Ha Fushi Novel fireproofs drag-line and preparation method thereof |
| CN110186777A (en) * | 2019-05-30 | 2019-08-30 | 浙江大学城市学院 | It is a kind of simulation soil body confining pressure under the conditions of Frozen-thawed cycled testing equipment |
| CN110513544A (en) * | 2019-08-29 | 2019-11-29 | 中国海洋石油集团有限公司 | A kind of pipeline suitable for conveying ultralow temperature medium |
| CN111911716A (en) * | 2020-08-13 | 2020-11-10 | 江苏嘉德管道工程有限公司 | Cryogenic working condition prefabricated cold insulation pipe |
-
2014
- 2014-06-25 CN CN201420340977.3U patent/CN203907126U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156840A (en) * | 2015-09-24 | 2015-12-16 | 泰州市鑫润天冶金保温材料有限公司 | Heat insulation pipeline for conveying low-temperature medium |
| CN105202316A (en) * | 2015-10-14 | 2015-12-30 | 浙江振申绝热科技股份有限公司 | Pipeline heat preservation system |
| CN107419662A (en) * | 2017-08-23 | 2017-12-01 | 柳州欧维姆机械股份有限公司 | A kind of Ha Fushi Novel fireproofs drag-line and preparation method thereof |
| CN110186777A (en) * | 2019-05-30 | 2019-08-30 | 浙江大学城市学院 | It is a kind of simulation soil body confining pressure under the conditions of Frozen-thawed cycled testing equipment |
| CN110513544A (en) * | 2019-08-29 | 2019-11-29 | 中国海洋石油集团有限公司 | A kind of pipeline suitable for conveying ultralow temperature medium |
| CN111911716A (en) * | 2020-08-13 | 2020-11-10 | 江苏嘉德管道工程有限公司 | Cryogenic working condition prefabricated cold insulation pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220719 Address after: 211178 Feiying Road, Binjiang Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee after: JIANGSU SUNPOWER PIPING TECHNOLOGY Co.,Ltd. Address before: 211112, No. 2111, good faith Road, Jiangning District, Jiangsu, Nanjing Patentee before: JIANGSU SUNPOWER TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |