CN105856602A - Manufacturing technology for cold-preserving and heat-insulating sleeve of full-capacity liquefied natural gas storage tank - Google Patents
Manufacturing technology for cold-preserving and heat-insulating sleeve of full-capacity liquefied natural gas storage tank Download PDFInfo
- Publication number
- CN105856602A CN105856602A CN201610265078.5A CN201610265078A CN105856602A CN 105856602 A CN105856602 A CN 105856602A CN 201610265078 A CN201610265078 A CN 201610265078A CN 105856602 A CN105856602 A CN 105856602A
- Authority
- CN
- China
- Prior art keywords
- cold
- cold insulation
- preserving
- pillar
- insulation material
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a manufacturing technology for a cold-preserving and heat-insulating sleeve of a full-capacity liquefied natural gas storage tank. The manufacturing technology comprises the prefabrication steps of 1, prefabricating a low temperature pipeline, an outer layer protection pipe and an upper protection pipe sealing plate and forming a closed cold-preserving material pouring space; 2, carrying out on-site pouring work on foaming cold-preserving material; 3, blocking a lower protection pipe sealing plate and completing manufacturing of the whole cold-preserving sleeve; and 4, installing the cold-preserving sleeve on concrete on the top of the full-capacity liquefied natural gas storage tank and carrying out tank top concrete work. According to the manufacturing technology, air in the cold-preserving space can be completely discharged out of the cold-preserving space, and the problem that complex processes are needed for displacing the air in the cold-preserving material through nitrogen gas is solved, the construction efficiency is greatly improved, and the cold-preserving effect of the sleeve is improved.
Description
Technical field
The present invention relates to sleeve pipe, particularly relate to a kind of for the full manufacture craft holding formula LNG tank cold insulation insulation casing.
Background technology
At present, the full formula LNG tank tank deck that holds is to be made up of internal layer steel structural layer and outer concrete layer, by carrying and discharge liquefied natural gas through the cryogenic piping of storage tank tank deck to storage tank.Due to storage cryogenic media LNG temperature extremely low (about-162 DEG C); in order to protect the safety of xoncrete structure; low-temperature storage tank needs to arrange cold insulation insulation casing; to avoid owing in cryogenic piping, cold energy is delivered on concrete; the concrete temperature caused is the lowest, affects the structural safety of storage tank tank deck.
In traditional full appearance formula LNG tank is built, for the making of the cold insulation sleeve pipe of above-mentioned storage tank cryogenic piping, use and first make cryogenic piping and pillar, then, after on whole Metal structure installation to storage tank, then the mode to whole cold insulation space filling glass cotton cold insulation material.The most being installed on storage tank owing to sleeve structure is longer, filling glass cotton cold insulation material is inconvenient for, and usually can not be filled completely by whole cold insulation material packing space, it is thus impossible to ensure construction quality；And owing to the mineral wool cold insulation material after filling exists air, follow-up also need to cold insulation sleeve pipe is carried out inerting disposal, and with nitrogen, the air in cold insulation material is cemented out, therefore, cause constructing more complicated.
Summary of the invention
Present invention is primarily targeted at the disadvantages mentioned above overcoming prior art to exist, and the manufacture craft of a kind of full appearance formula LNG tank cold insulation insulation casing is provided, air in cold insulation space can not only be all rejected to outside cold insulation space by it, solves the complicated procedures of forming that need to be cemented out by the air in cold insulation material with nitrogen；And, also substantially increase efficiency and the sleeve pipe cold insulation effect of construction.
It is an object of the invention to be realized by techniques below scheme:
A kind of manufacture craft of full appearance formula LNG tank cold insulation insulation casing, it is characterised in that: use following prefabrication step:
The first step: the pillar shrouding prefabricated, upper of cryogenic piping, outer layer pillar is carried out prefabricated, and forms the cold insulation material casting space of a closing；
Second step: foaming cold insulation material is carried out cast-in-site work；
3rd step: the closure carrying out lower pillar shrouding, completes the making of whole cold insulation sleeve pipe；
4th step: be installed to cold insulation sleeve pipe entirely hold on formula LNG tank tank deck concrete, carry out tank deck concrete work.
A kind of full appearance formula LNG tank cold insulation insulation casing, it is characterized in that: including: a cryogenic piping, the outer layer pillar being sleeved on cryogenic piping, the upper pillar shrouding that is arranged on cryogenic piping and outer layer pillar, wherein, formed in the cold insulation material casting space closed after pillar shrouding is installed, be cast with foaming cold insulation material layer；Cryogenic piping, outer layer pillar, the bottom of foaming cold insulation material layer are provided with lower pillar shrouding, cryogenic piping, outer layer pillar, foaming cold insulation material layer are closed, and form a cold insulation insulation casing structure.
Beneficial effects of the present invention: due to the fact that employing technique scheme, the air in cold insulation space can not only be all rejected to outside cold insulation space, solve the complicated procedures of forming that need to be cemented out by the air in cold insulation material with nitrogen by it；And, also substantially increase efficiency and the sleeve pipe cold insulation effect of construction.
Accompanying drawing explanation
Fig. 1 is present configuration scheme of installation.
Major Symbol explanation in figure:
1. cryogenic piping, 2. outer layer pillar, 3. foaming cold insulation material layer, 4. goes up pillar shrouding, 5. descends pillar shrouding, 6. storage tank tank deck concrete.
Detailed description of the invention
As shown in Figure 1, the present invention includes: cryogenic piping 1, the outer layer pillar 2 being sleeved on cryogenic piping, the upper pillar shrouding 4 that is arranged on cryogenic piping 1 and outer layer pillar 2, wherein, formed in the cold insulation material casting space closed after pillar shrouding 4 is installed, be cast with foaming cold insulation material layer 3；Cryogenic piping 1, outer layer pillar 2, the bottom of foaming cold insulation material layer 3 are provided with lower pillar shrouding 5, cryogenic piping 1, outer layer pillar 2, foaming cold insulation material layer 3 are closed, and form a cold insulation insulation casing structure.
The cold insulation insulation casing following prefabrication step of employing:
The first step: to cryogenic piping 1, outer layer pillar 2, upper pillar shrouding 4 prefabricated, and form the cold insulation material casting space of closing；
Second step: foaming cold insulation material 3 is carried out cast-in-site work；
3rd step: carry out lower pillar shrouding 5 blocking work, complete the making of whole cold insulation sleeve pipe；
4th step: be installed to cold insulation sleeve pipe entirely hold on formula LNG tank tank deck concrete 6, carry out tank deck concrete work.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is made any pro forma restriction, every any simple modification, equivalent variations and modification made above example according to the technical spirit of the present invention, all still falls within the range of technical solution of the present invention.
Claims (2)
1. the manufacture craft of a full appearance formula LNG tank cold insulation insulation casing, it is characterised in that:
Use following prefabrication step:
The first step: the pillar shrouding prefabricated, upper of cryogenic piping, outer layer pillar is carried out prefabricated, and is formed
The one cold insulation material casting space closed；
Second step: foaming cold insulation material is carried out cast-in-site work；
3rd step: the closure carrying out lower pillar shrouding, completes the making of whole cold insulation sleeve pipe；
4th step: be installed to cold insulation sleeve pipe entirely hold on formula LNG tank tank deck concrete, carry out
Tank deck concrete work.
2. a full appearance formula LNG tank cold insulation insulation casing, it is characterised in that: including: one is low
Temperature pipeline, be sleeved on cryogenic piping outer layer pillar, be arranged on cryogenic piping and outer layer pillar on protect
Pipe shrouding, wherein, is formed in the cold insulation material casting space closed after installing pillar shrouding, is cast with
Foaming cold insulation material layer；Cryogenic piping, outer layer pillar, the bottom of foaming cold insulation material layer are provided with down and protect
Pipe shrouding, closes cryogenic piping, outer layer pillar, foaming cold insulation material layer, and it is adiabatic to form a cold insulation
Sleeve structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265078.5A CN105856602A (en) | 2016-04-26 | 2016-04-26 | Manufacturing technology for cold-preserving and heat-insulating sleeve of full-capacity liquefied natural gas storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265078.5A CN105856602A (en) | 2016-04-26 | 2016-04-26 | Manufacturing technology for cold-preserving and heat-insulating sleeve of full-capacity liquefied natural gas storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105856602A true CN105856602A (en) | 2016-08-17 |
Family
ID=56628448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610265078.5A Pending CN105856602A (en) | 2016-04-26 | 2016-04-26 | Manufacturing technology for cold-preserving and heat-insulating sleeve of full-capacity liquefied natural gas storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105856602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145689A (en) * | 2019-05-31 | 2019-08-20 | 中国空分工程有限公司 | A kind of low-temperature storage tank vault cryogenic piping sleeve cold insulation structure and its installation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2040208U (en) * | 1987-09-02 | 1989-06-28 | 营口市示范消声器厂 | Insulating polyurethane tube with outer plastic casing |
| CN101498390A (en) * | 2009-03-17 | 2009-08-05 | 武汉理工大学 | Glass fibre reinforced plastic and prestress steel cylinder concrete composite pipes and manufacturing process thereof |
| CN202302725U (en) * | 2011-10-10 | 2012-07-04 | 中国石油天然气股份有限公司 | Long-distance pipeline conveying device for liquefied natural gas (LNG) |
| CN203907132U (en) * | 2014-06-30 | 2014-10-29 | 佰焰(天津)燃气科技发展有限公司 | LNG cold insulation pipeline |
| CN104864223A (en) * | 2014-02-21 | 2015-08-26 | 赵瑞槐 | Sleeve type insulating pipe |
| CN204693020U (en) * | 2015-05-15 | 2015-10-07 | 华陆工程科技有限责任公司 | Super sized type concrete all-enclosuring type low-temperature storage tank |
| CN105299390A (en) * | 2014-07-31 | 2016-02-03 | 天津市益斯达燃气设备有限公司 | Low-temperature pipeline for delivering fuel gas |
-
2016
- 2016-04-26 CN CN201610265078.5A patent/CN105856602A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2040208U (en) * | 1987-09-02 | 1989-06-28 | 营口市示范消声器厂 | Insulating polyurethane tube with outer plastic casing |
| CN101498390A (en) * | 2009-03-17 | 2009-08-05 | 武汉理工大学 | Glass fibre reinforced plastic and prestress steel cylinder concrete composite pipes and manufacturing process thereof |
| CN202302725U (en) * | 2011-10-10 | 2012-07-04 | 中国石油天然气股份有限公司 | Long-distance pipeline conveying device for liquefied natural gas (LNG) |
| CN104864223A (en) * | 2014-02-21 | 2015-08-26 | 赵瑞槐 | Sleeve type insulating pipe |
| CN203907132U (en) * | 2014-06-30 | 2014-10-29 | 佰焰(天津)燃气科技发展有限公司 | LNG cold insulation pipeline |
| CN105299390A (en) * | 2014-07-31 | 2016-02-03 | 天津市益斯达燃气设备有限公司 | Low-temperature pipeline for delivering fuel gas |
| CN204693020U (en) * | 2015-05-15 | 2015-10-07 | 华陆工程科技有限责任公司 | Super sized type concrete all-enclosuring type low-temperature storage tank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145689A (en) * | 2019-05-31 | 2019-08-20 | 中国空分工程有限公司 | A kind of low-temperature storage tank vault cryogenic piping sleeve cold insulation structure and its installation method |
| CN110145689B (en) * | 2019-05-31 | 2023-08-22 | 中国空分工程有限公司 | Cold insulation structure of low-temperature storage tank vault low-temperature pipeline sleeve and installation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |
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| WD01 | Invention patent application deemed withdrawn after publication |