CN110145689B - Cold insulation structure of low-temperature storage tank vault low-temperature pipeline sleeve and installation method thereof - Google Patents
Cold insulation structure of low-temperature storage tank vault low-temperature pipeline sleeve and installation method thereof Download PDFInfo
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- CN110145689B CN110145689B CN201910472608.7A CN201910472608A CN110145689B CN 110145689 B CN110145689 B CN 110145689B CN 201910472608 A CN201910472608 A CN 201910472608A CN 110145689 B CN110145689 B CN 110145689B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/23—Manufacturing of particular parts or at special locations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a cold insulation structure of a low-temperature storage tank vault low-temperature pipeline sleeve and an installation method thereof, wherein the cold insulation structure comprises an outer tank vault, an inner tank suspended ceiling and a low-temperature pipeline penetrating between the outer tank vault and the inner tank suspended ceiling, the vault sleeve is arranged at the upper end of the low-temperature pipeline, the suspended ceiling sleeve is arranged at the lower end of the low-temperature pipeline, a supporting plate is arranged above the suspended ceiling sleeve, an inner-layer PIR precast block is sleeved outside the low-temperature pipeline between the top end of the vault sleeve and the supporting plate, and an outer-layer PIR precast block is arranged between the vault sleeve and the inner-layer PIR precast block; the beneficial effects of the invention are as follows: the structure has good cold insulation effect and simple and convenient installation, effectively solves the problem that the use of the traditional glass wool filling structure in the sleeve cannot be performed in the follow-up welding work due to cold leakage caused by sedimentation in the long-term operation process, and simultaneously, improves the safety and reliability of the local structure.
Description
Technical Field
The invention relates to the technical field of large-scale low-temperature storage tanks, in particular to a cold insulation structure of a dome low-temperature pipeline sleeve of a low-temperature storage tank and an installation method of the cold insulation structure.
Background
More and more large-sized low-temperature storage tanks are applied to the energy and petrochemical industry, the large-sized low-temperature storage tanks are in normal pressure vertical cylindrical structures, and inlets and outlets of pipelines are arranged on the tank top. Along with the use of the storage tank, the traditional glass wool filling sleeve structure is settled and caused to leak cold due to the reasons of self gravity, nonremovable self material and the like in the long-term operation process, the in-situ foaming heat insulation material structure is used in the prestressed concrete low-temperature storage tank sleeve and is integrally installed on the arch top of the outer tank, but for the low-temperature storage tank with double-layer metal, the sleeve and the arch top are required to be welded and sealed, if the foaming material is pre-filled in the sleeve, the material can be damaged due to the fact that the high temperature generated by welding cannot be born.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a cold insulation structure of a dome low-temperature pipeline sleeve of a low-temperature storage tank and an installation method thereof, which are used for solving the problems of heat insulation, cold leakage and construction installation of the dome low-temperature pipeline sleeve of the current large-scale low-temperature storage tank.
The technical scheme of the invention is as follows:
the utility model provides a cold insulation structure of low temperature storage tank vault low temperature pipeline sleeve, includes outer jar vault, inner tank furred ceiling and wears to establish the low temperature pipeline between outer jar vault and inner tank furred ceiling, its characterized in that, low temperature pipeline upper end position is equipped with the vault sleeve, the low temperature pipeline lower extreme is equipped with the furred ceiling sleeve, the furred ceiling sleeve top is equipped with the backup pad, the low temperature pipeline outside is being located the cover and is equipped with inlayer PIR prefabricated section between vault sleeve top and the backup pad, be equipped with outer PIR prefabricated section between vault sleeve and the inlayer PIR prefabricated section, set up glass cotton between vault sleeve bottom and the inner tank furred ceiling and in the inner tank furred ceiling top position respectively.
A cold insulation structure of low temperature storage tank vault low temperature pipeline sleeve, its characterized in that, vault sleeve bottom is equipped with the fixed plate, be located fixed position fluting on the inlayer PIR prefabricated section and set up the grip block, grip block one end embedding inlayed inlayer PIR prefabricated section, the other end is fixed with the fixed plate through bolt and nut, carries out supplementary fixing through self-tapping screw simultaneously.
The cold insulation structure of the low-temperature storage tank vault low-temperature pipeline sleeve is characterized in that at least two layers of glass wool are arranged between the vault sleeve bottom and the suspended ceiling of the inner tank, and glass fiber cloth is wrapped on the outer side of the glass wool.
The cold insulation structure of the low-temperature storage tank vault low-temperature pipeline sleeve is characterized in that common cotton thread stitching is adopted between the splicing seams of the glass fiber cloth to be temporarily fixed, and the splicing seams are tied and fixed through stainless steel wires.
The method for installing the cold insulation structure of the dome low-temperature pipeline sleeve of the low-temperature storage tank is characterized by comprising the following steps of:
step 1): the method comprises the steps of firstly, smearing low-temperature glue on the inner side of an inner PIR precast block and a splicing seam, and then, installing the inner PIR precast block on the outer side of a low-temperature pipeline, between a vault sleeve and a supporting plate;
step 2): the method comprises the steps of coating low-temperature glue on the outer side of an outer PIR precast block except the bottom surface, filling the low-temperature glue into the gap between a vault sleeve and an inner PIR precast block along the gap, and ensuring that a splicing seam between the outer PIR precast blocks is staggered with a splicing seam between the inner PIR precast blocks;
step 3): one end of the clamping plate is embedded into the inner-layer PIR precast block, and the other end of the clamping plate is fixed with the fixing plate welded on the vault sleeve by using bolts and nuts, and is fixed in an auxiliary way by self-tapping screws;
step 4): at least two layers of glass wool are used for wrapping the arch top sleeve to the suspended ceiling area of the inner tank, common cotton thread stitching is adopted between the same layers of glass wool for temporary fixation, glass fiber cloth is used for wrapping the outer side of the glass wool, common cotton thread stitching is adopted between the glass fiber cloth stitching seams for temporary fixation, and after the completion, stainless steel wires are used for bundling and fixing.
Step 5): and paving glass wool in the area above the suspended ceiling of the inner tank, and finishing the cold insulation structure of the vault low-temperature pipeline sleeve.
The installation method of the cold insulation structure of the low-temperature storage tank vault low-temperature pipeline sleeve is characterized in that the splicing seams between the outer-layer PIR precast blocks and the splicing seams between the inner-layer PIR precast blocks are staggered by 90 degrees.
The beneficial effects of the invention are as follows: the structure has good cold insulation effect and simple and convenient installation, effectively solves the problem that the use of the traditional glass wool filling structure in the sleeve cannot be performed in the follow-up welding work due to cold leakage caused by sedimentation in the long-term operation process, and simultaneously, improves the safety and reliability of the local structure.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the A-A plane of the present invention;
FIG. 3 is a cross-sectional view of the B-B surface of the present invention;
FIG. 4 is an enlarged view of the structure at C of the present invention;
FIG. 5 is a schematic diagram of step 1) of the present invention;
FIG. 6 is a schematic diagram of step 2) of the present invention;
FIG. 7 is a schematic diagram of step 3) of the present invention;
FIG. 8 is a schematic diagram of step 4) of the present invention;
FIG. 9 is a schematic diagram of step 5) of the present invention;
in the figure: the high-temperature heat insulation wall comprises a 1-low-temperature pipeline, a 2-vault sleeve, a 3-inner PIR precast block, a 4-outer tank vault, 5-glass wool, 6-stainless steel wires, 7-glass fiber cloth, 8-support plates, 9-ceiling sleeves, 10-inner tank ceiling, 11-clamping plates, 12-bolt nuts, 13-self-tapping screws, 14-fixing plates, 15-low-temperature glue and 16-outer PIR precast blocks.
Detailed Description
The invention is further described below with reference to the drawings.
As shown in fig. 1 to 9, a cold insulation structure for a low-temperature storage tank vault low-temperature pipeline sleeve comprises a low-temperature pipeline 1, a vault sleeve 2, PIR precast blocks 3, an outer tank vault 4, glass wool 5, stainless steel wires 6, glass fiber cloth 7, a supporting plate 8, a suspended ceiling sleeve 9, an inner tank suspended ceiling 10, a clamping plate 11, a bolt and nut 12, self-tapping screws 13, a fixing plate 14, low-temperature glue 15 and outer layer PIR precast blocks 16.
The utility model provides a cold insulation structure of low temperature storage tank vault low temperature pipeline sleeve, including outer jar vault 4, inner tank furred ceiling 10 and wear to establish the low temperature pipeline 1 between outer jar vault 4 and inner tank furred ceiling 10, low temperature pipeline 1 upper end position is equipped with vault sleeve 2, low temperature pipeline 1 lower extreme is equipped with furred ceiling sleeve 9, the furred ceiling sleeve 9 top is equipped with backup pad 8, the low temperature pipeline 1 outside is equipped with inlayer PIR prefabricated section 3 in the cover between being located vault sleeve 2 top and backup pad 8, be equipped with outer PIR prefabricated section 16 between vault sleeve 2 and the inlayer PIR prefabricated section 3, set up glass wool 5 respectively between vault sleeve 2 bottom and inner tank furred ceiling 10 and the position above inner tank furred ceiling 10.
Wherein the bottom of the vault sleeve 2 is provided with a fixed plate 14, the inner layer PIR precast block 3 is provided with a clamping plate 11 in a slot at a fixed position, one end of the clamping plate 11 is embedded into the inner layer PIR precast block 3, the other end is fixed with the fixed plate 14 through a bolt and a nut 12, and meanwhile, auxiliary fixation is carried out through a tapping screw 13.
At least two layers of glass wool 5 are arranged between the bottom of the vault sleeve 2 and the suspended ceiling 10 of the inner tank, and glass fiber cloth 7 is wrapped on the outer side of the glass wool 5; the splice joints of the glass fiber cloth 7 are temporarily fixed by adopting common cotton thread stitching and are bound and fixed by stainless steel wires 6.
The method for installing the cold insulation structure of the low-temperature pipeline sleeve of the vault of the low-temperature storage tank comprises the following specific steps:
step 1) as shown in fig. 5, the inner side of the PIR precast block 3 and the splice joint are coated with low-temperature glue 15, and then the PIR precast block 3 is installed between the outer side of the low-temperature pipeline 1, the vault sleeve 2 and the supporting plate 8.
Step 2) as shown in fig. 6, the outer PIR precast block 3 is coated with low-temperature glue on the other surfaces except the bottom surface, the low-temperature glue is plugged into the gap between the vault sleeve 2 and the inner PIR precast block 3, and the splicing seams between the outer PIR precast blocks 3 and the inner PIR precast blocks 3 are staggered, and the 90-degree best angle is ensured.
Step 3) as shown in fig. 7, one end of the clamping plate 11 is inserted into the inner layer PIR precast block 3, and the other end is fixed with the fixing plate 14 welded on the dome sleeve 2 using the bolt and nut 12, and simultaneously, auxiliary fixation is performed by the tapping screw 13.
Step 4) as shown in fig. 8, at least two layers of glass wool 5 are used for wrapping the area from the arch top sleeve 2 to the suspended ceiling 10 of the inner tank, common cotton thread stitching is adopted between the glass wool of the same layer for temporary fixation, meanwhile, glass fiber cloth 7 is used for wrapping the outer side of the glass wool 5, common cotton thread stitching is adopted between the glass fiber cloth stitching seams for temporary fixation, and after the completion, stainless steel wires 6 are used for bundling and fixing.
Step 5) as shown in fig. 9, the glass wool 5 is paved in the area above the suspended ceiling 10 of the inner tank, and the cold insulation structure of the sleeve of the vault low-temperature pipeline is completed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, but not limiting, for example, the PIR prefabricated block may be replaced by other non-compressible cold insulation materials, such as foam glass brick, PUR, etc.; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. The utility model provides a cold insulation structure of low temperature storage tank vault low temperature pipeline sleeve, includes outer jar vault (4), inner tank furred ceiling (10) and wears to establish cryogenic pipeline (1) between outer jar vault (4) and inner tank furred ceiling (10), its characterized in that, cryogenic pipeline (1) upper end position is equipped with vault sleeve (2), cryogenic pipeline (1) lower extreme is equipped with furred ceiling sleeve (9), suspended ceiling sleeve (9) top is equipped with backup pad (8), the cover is equipped with inlayer PIR prefabricated section (3) between being located vault sleeve (2) top and backup pad (8) in cryogenic pipeline (1) outside, be equipped with outer PIR prefabricated section (16) between vault sleeve (2) and inlayer PIR prefabricated section (3), set up glass cotton (5) respectively between vault sleeve (2) bottom and inner tank furred ceiling (10) and in inner tank furred ceiling (10) top position.
2. The cold insulation structure of a low-temperature storage tank vault low-temperature pipeline sleeve according to claim 1, characterized in that a fixing plate (14) is arranged at the bottom of the vault sleeve (2), a clamping plate (11) is arranged on the inner-layer PIR precast block (3) in a groove at a fixed position, one end of the clamping plate (11) is embedded into the inner-layer PIR precast block (3), and the other end of the clamping plate is fixed with the fixing plate (14) through a bolt and a nut (12) and is fixed in an auxiliary mode through a tapping screw (13).
3. The cold insulation structure of the low-temperature storage tank vault low-temperature pipeline sleeve according to claim 1, wherein at least two layers of glass wool (5) are arranged between the bottom of the vault sleeve (2) and the suspended ceiling (10) of the inner tank, and glass fiber cloth (7) is wrapped on the outer side of the glass wool (5).
4. A cold insulation structure for a dome low-temperature pipeline sleeve of a low-temperature storage tank according to claim 3, wherein common cotton thread stitching is adopted between the stitching seams of the glass fiber cloth (7) for temporary fixation, and bundling fixation is carried out through stainless steel wires (6).
5. The method for installing the cold insulation structure of the dome low-temperature pipeline sleeve of the low-temperature storage tank is characterized by comprising the following steps of:
step 1): the method comprises the steps of firstly, smearing low-temperature glue (15) on the inner side of an inner PIR precast block (3) and a splicing seam, and then, installing the inner PIR precast block (3) between the outer side of a low-temperature pipeline (1) and between a vault sleeve (2) and a supporting plate (8);
step 2): the outer side of the outer PIR precast block (16) is coated with low-temperature glue except the bottom surface, the low-temperature glue is filled in along a gap between the vault sleeve (2) and the inner PIR precast block (3), and the splicing seams between the outer PIR precast blocks (16) and the splicing seams between the inner PIR precast blocks (3) are staggered;
step 3): one end of a clamping plate (11) is embedded into an inner-layer PIR precast block (3), and the other end of the clamping plate is fixed with a fixed plate (14) welded on the vault sleeve (2) by using a bolt and a nut (12) and is also fixed in an auxiliary way by a self-tapping screw (13);
step 4): wrapping the area from the arch top sleeve (2) to the suspended ceiling (10) of the inner tank by using at least two layers of glass wool (5), temporarily fixing the same layer of glass wool (5) by adopting common cotton thread stitching, wrapping the outer side of the glass wool (5) by using glass fiber cloth (7), temporarily fixing the splice seams of the glass fiber cloth (7) by adopting common cotton thread stitching, and binding and fixing by using a stainless steel wire (6) after the completion;
step 5): and paving glass wool (5) in the area above the suspended ceiling (10) of the inner tank, and finishing the cold insulation structure of the sleeve of the vault low-temperature pipeline.
6. The method for installing the cold insulation structure of the low-temperature storage tank vault low-temperature pipeline sleeve according to claim 5, wherein the splicing seams between the outer-layer PIR precast blocks (16) and the splicing seams between the inner-layer PIR precast blocks (3) are staggered by 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472608.7A CN110145689B (en) | 2019-05-31 | 2019-05-31 | Cold insulation structure of low-temperature storage tank vault low-temperature pipeline sleeve and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910472608.7A CN110145689B (en) | 2019-05-31 | 2019-05-31 | Cold insulation structure of low-temperature storage tank vault low-temperature pipeline sleeve and installation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145689A CN110145689A (en) | 2019-08-20 |
| CN110145689B true CN110145689B (en) | 2023-08-22 |
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| CN201910472608.7A Active CN110145689B (en) | 2019-05-31 | 2019-05-31 | Cold insulation structure of low-temperature storage tank vault low-temperature pipeline sleeve and installation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202419128U (en) * | 2011-12-31 | 2012-09-05 | 张家港中集圣达因低温装备有限公司 | Low-temperature storage tank |
| CN204693029U (en) * | 2015-05-15 | 2015-10-07 | 华陆工程科技有限责任公司 | With the low-temperature storage tank residual oil in tank of light-duty adiabatic furred ceiling |
| CN205155458U (en) * | 2015-11-10 | 2016-04-13 | 晋城华港燃气有限公司 | LNG storage tank tank deck sleeve pipe heat preservation system |
| CN105856602A (en) * | 2016-04-26 | 2016-08-17 | 中国海洋石油总公司 | Manufacturing technology for cold-preserving and heat-insulating sleeve of full-capacity liquefied natural gas storage tank |
| JP2017198315A (en) * | 2016-04-28 | 2017-11-02 | 川崎重工業株式会社 | Method for installing expansion pipe for low temperature storage tank and expansion pipe for low temperature storage tank |
| CN107795845A (en) * | 2016-09-05 | 2018-03-13 | 张家港中集圣达因低温装备有限公司 | Three-layer metal wall contains storage tank entirely |
| CN210107042U (en) * | 2019-05-31 | 2020-02-21 | 中国空分工程有限公司 | Low temperature storage tank vault low temperature pipeline sleeve cold insulation structure |
-
2019
- 2019-05-31 CN CN201910472608.7A patent/CN110145689B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202419128U (en) * | 2011-12-31 | 2012-09-05 | 张家港中集圣达因低温装备有限公司 | Low-temperature storage tank |
| CN204693029U (en) * | 2015-05-15 | 2015-10-07 | 华陆工程科技有限责任公司 | With the low-temperature storage tank residual oil in tank of light-duty adiabatic furred ceiling |
| CN205155458U (en) * | 2015-11-10 | 2016-04-13 | 晋城华港燃气有限公司 | LNG storage tank tank deck sleeve pipe heat preservation system |
| CN105856602A (en) * | 2016-04-26 | 2016-08-17 | 中国海洋石油总公司 | Manufacturing technology for cold-preserving and heat-insulating sleeve of full-capacity liquefied natural gas storage tank |
| JP2017198315A (en) * | 2016-04-28 | 2017-11-02 | 川崎重工業株式会社 | Method for installing expansion pipe for low temperature storage tank and expansion pipe for low temperature storage tank |
| CN107795845A (en) * | 2016-09-05 | 2018-03-13 | 张家港中集圣达因低温装备有限公司 | Three-layer metal wall contains storage tank entirely |
| CN210107042U (en) * | 2019-05-31 | 2020-02-21 | 中国空分工程有限公司 | Low temperature storage tank vault low temperature pipeline sleeve cold insulation structure |
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| CN110145689A (en) | 2019-08-20 |
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