CN105736903A - Independent B-type LNG ship liquid cargo tank heat insulation system with splash-proof screen structure - Google Patents
Independent B-type LNG ship liquid cargo tank heat insulation system with splash-proof screen structure Download PDFInfo
- Publication number
- CN105736903A CN105736903A CN201610074852.4A CN201610074852A CN105736903A CN 105736903 A CN105736903 A CN 105736903A CN 201610074852 A CN201610074852 A CN 201610074852A CN 105736903 A CN105736903 A CN 105736903A
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- Prior art keywords
- cargo tank
- lng ship
- heat insulation
- heat
- shield
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
- B63B3/14—Hull parts
- B63B3/56—Bulkheads; Bulkhead reinforcements
-
- 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
- F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides an independent B-type LNG ship liquid cargo tank heat insulation system with a splash-proof screen structure. The independent B-type LNG ship liquid cargo tank heat insulation system comprises a splash-proof screen, a bolt mechanism and a heat insulation plate, wherein the splash-proof screen is arranged on a main screen wall in a spaced manner through a supporting mechanism; the bolt mechanism is arranged on the main screen wall; and the heat insulation plate is fixed to the splash-proof screen through the bolt mechanism. The independent B-type LNG ship liquid cargo tank heat insulation system has the beneficial effects that all components are subject to modularization manufacturing and installation, unified standard specifications can be adopted when the components are prefabricated, and the working amount and the cost of manufacturing are reduced; heat insulation plate modules are relatively independent, when some module is damaged, the other modules cannot be influenced, and the reliability of heat insulation layers is improved; in addition, when the damaged module is repaired, only one damaged module needs to be dismounted for local repairing, and convenience is brought to maintenance and repairing; and the heat insulation system is suitable for an independent B-type LNG ship liquid cargo tank, can also be used for other shore-based low-temperature liquid cargo storage tanks or can serve as a heat insulation system of other low-temperature occasions.
Description
Technical field
The present invention relates to Novel liquefied natural gas ship building technology field, particularly a kind of independent Type B LNG ship cargo tank adiabatic system with spatter shield structure suitable in independent Type B LNG ship cargo tank.
Background technology
Liquefied natural gas (LNG) refer to the natural gas being mainly composed of methane is cooled to about-163 DEG C and be compressed to its gas volume 1/600 colourless, transparent cryogenic liquid.It it is a kind of important clean energy resource.LNG carrier is then the seaborne main conveyance of liquefied natural gas, is the boats and ships of a kind of high-tech, highly difficult and high added value, is described as world's shipbuilding " jewel on Phaleria macrocarpa ".
For any kind of LNG ship, adiabatic system is all the core of liquid goods containment system.The temperature difference of liquefied natural gas (LNG) ship liquid goods under sail and external environment is up to nearly 200 DEG C, therefore have substantial amounts of heat and flow in cabin by liquid goods containment system, liquid goods is caused to evaporate, cause loss of goods on the one hand, substantial amounts of liquid goods evaporation can cause that the pressure in cargo tank raises on the other hand, the navigation safety of harm boats and ships.It is thus desirable to around cargo tank the good heat insulation layer containment system of one layer of heat-proof quality of installation.In view of independent Type B cargo tank is the cabin type of a kind of structure uniqueness, the ripe membrane LNG tanker insulating structure of its insulating structure and current Technical comparing has a great difference, and therefore how solving the adiabatic problem of independent Type B LNG ship cargo tank becomes and build one of key problem urgently to be resolved hurrily in novel independent Type B LNG ship process in the future.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide the independent Type B LNG ship cargo tank adiabatic system of a kind of adiabatic problem solving independent Type B LNG ship cargo tank.
For solving above-mentioned technical problem, a kind of independent Type B LNG ship cargo tank adiabatic system with spatter shield structure provided by the invention, including: spatter shield, described spatter shield is disposed on main screen wall by supporting mechanism；Bolt mechanism, described bolt mechanism is arranged on described main screen wall；Heat-insulating shield, described heat-insulating shield is fixed on described spatter shield by described bolt mechanism.
Preferably, described bolt mechanism includes: bolt pedestal, and described bolt pedestal is arranged on described main screen wall；Screw rod, one end of described screw rod is connected with described screw rod pedestal by screw thread, and the other end of described screw rod is through described spatter shield, and the other end of described screw rod is arranged in described heat-insulating shield；Plywood cushion block and washer nut, described plywood cushion block and described washer nut are arranged on the other end of described screw rod.
Preferably, the quantity of described heat-insulating shield is several, and between several described heat-insulating shields, interval is arranged.
Preferably, the cross section of described heat-insulating shield is convex, and described heat-insulating shield includes: base, and described base is arranged on described spatter shield, has the first through hole running through described base on described base；The seat of honour, the described seat of honour is arranged on described base, has the second through hole running through the described seat of honour on the described seat of honour；Wherein said first through hole connects with described second through hole, and described screw rod is arranged in described first through hole through the part of described spatter shield, and described plywood cushion block and described washer nut are arranged in described second through hole.
Preferably, in described first through hole, it is filled with packed column.
Preferably, in described second through hole, it is filled with filler plug.
Preferably, between described base, it is provided with the first heat insulation layer, between the described seat of honour, is provided with filling block, the described filling block both sides contact surface with the described seat of honour is respectively equipped with the second heat insulation layer.
Preferably, it is pasted with protective layer at the upper surface at the described seat of honour.
Preferably, described supporting mechanism includes: support member, and described support member is arranged on described main screen wall；Lath, described lath is arranged on described main screen wall by described support member, and the edge of described spatter shield is connected with described lath.
Preferably, the spacing between described spatter shield and described main screen wall is 10 millimeters.
Compared with prior art, beneficial effects of the present invention is as follows:
1) each parts all adopt modularization making, installation, on the one hand, can adopt unified standard criterion when these components prefabricated, decrease workload and the cost of processing and fabricating；On the other hand, relatively independent between each heat-insulating shield module, when wherein there being module to be damaged, do not interfere with other module, improve the reliability of heat insulation layer, and only need to remove an impaired module when repairing and damaging module and carry out local route repair, it is simple to safeguard and maintenance；
2) communicating passage between spatter shield and cargo tank main screen wall can ensure that when main screen wall generation minor leakage LNG liquid goods will not be leaked in heat insulation layer, meets the related specifications requirement that LNG ship oceangoing ship is built；
3) installation of hard polyurethane foams heat-insulating shield is fixing have employed the bonding two ways fixing with bolt mechanism of polyurethane adhesive, and selected polyurethane glue can be normally bonding under cryogenic, it is ensured that the reliability that heat-insulating shield is installed；
4) filling block between the main heat-insulating shield of hard polyurethane foams can effectively cushion the deformation of expanding with heat and contract with cold of heat-insulating shield, it is also possible to buffering rocks the squeezing action between the heat-insulating shield of generation due to boats and ships；
5) convex of the main heat-insulating shield of hard polyurethane foams is designed to effectively reduce the leakage heat at packing material place, packing space is divided into two sections provide enough space when also being able to as installing packing material, it is simple to construction；
6) enhancement mode fiberglass plastic protective layer can be effectively increased the surface strength of polyurethane adiabatic material so that adiabator is hardly damaged, and protective layer is also equipped with the protective actions such as waterproof and dampproof, meets the maintenance requirement of heat insulation layer；
7) adiabatic system is applicable not only to independent Type B LNG ship cargo tank, could be used that on the Low Temperature Liquid goods storage tank of some other bank base or as the heat-insulation system in other low temperature places.
Accompanying drawing explanation
By reading detailed description non-limiting example made with reference to the following drawings, the further feature purpose of the present invention and advantage will become more apparent upon.
Fig. 1 is the present invention independent Type B LNG ship cargo tank adiabatic system complete layout with spatter shield structure；
The independent Type B LNG ship cargo tank storage tank figure that Fig. 2 is the present invention to be suitable for the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure；
Fig. 3 is the present invention supporting mechanism layout schematic diagram with the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure；
Fig. 4 is the present invention spatter shield mounting arrangements schematic diagram with the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure；
Fig. 5 is the present invention main heat-insulating shield mounting arrangements schematic diagram of hard polyurethane foams with the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure；
Fig. 6 is the present invention packing material layout drawing with the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure；
Fig. 7 is the present invention fiberglass reinforced plastic protective layer layout drawing with the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure；
Fig. 8 is the flow chart of the construction method of the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure that the embodiment of the present invention provides.
In figure:
1-main screen wall 2-support member 3-the first through hole
4-the second through hole 5-bolt pedestal 6-lath
7-spatter shield 8-screw rod 9-heat-insulating shield
10-packed column 11-plywood cushion block 12-packing ring
13-filler plug 14-the first heat insulation layer 15-filling block
16-the second heat insulation layer 17-protective layer 18-nut
The 19-base 20-seat of honour
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in those skilled in the art and are further appreciated by the present invention, but do not limit the present invention in any form.It should be pointed out that, to those skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some changes and improvements.These broadly fall into protection scope of the present invention.
As shown in Fig. 1～Fig. 7, the present invention solves the adiabatic problem of this type cargo tank with the technical scheme of the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure, the main screen wall 1 that the bulkhead of cargo tank is, the adiabatic system with spatter shield structure provided by the invention is installed on cargo tank main screen wall 1.
Supporting mechanism includes support member 2, and support member 2 is all welded on main screen wall 1, and bolt pedestal 5 is also welded on main screen wall 1, and supporting mechanism also includes lath 6, and lath 6 welded and installed is on support member 2.Supporting mechanism play the fixing effect supporting spatter shield 7, the lower end big disk of bolt pedestal 5 also functions to support the effect of spatter shield 7, its supporting role can ensure to be formed between spatter shield 7 and main screen wall 1 communicating passage of a clean width (10 millimeters), and its supporting role also can ensure the flatness of spatter shield 7.
Spatter shield 7 is welded on lath 6, and spatter shield 7 has two holes that can make bolt pedestal 5 upper end traverse.When spatter shield 7 is installed, needs full weld to ensure sealing between four limits and the lath 6 of rectangle spatter shield 7, between spatter shield 7 and bolt pedestal 5, also need welded seal.Bolt pedestal 5 center has screwed hole, is used for fixing hard polyurethane foams heat-insulating shield 9 and screw rod 8, adopts and threaded between the lower end of screw rod 8 with bolt pedestal 5.
Hard polyurethane foams heat-insulating shield 9 is convex rectangular structure, and centre has the first through hole 3 and the second through hole 4 installing bolt mechanism.One layer of low temperature glue bonding is used between hard polyurethane foams heat-insulating shield 9 and spatter shield 7, secondly, using the fixing hard polyurethane foams heat-insulating shield 9 of bolt mechanism auxiliary, bolt mechanism includes bolt pedestal 5, screw rod 8, wooden packed column 10, plywood cushion block 11, packing ring 12 and nut 18.
After completing the installation of hard polyurethane foams heat-insulating shield 9, it is necessary to use filling heat insulator to fill the clearance space between heat-insulating shield.Use wooden packed column 10 to fill the first through hole 3 in heat-insulating shield 9, use the second through hole 4 that cylindrical hard polyurethane foams filler plug 13 is filled in heat-insulating shield 9.The first heat insulation layer 14 (the present embodiment employing glass wool heat insulating material) is used to fill the gap between the base 19 of heat-insulating shield 9, use hard polyurethane foams filling block 15 to fill the wide arc gap between the seat of honour 20 of heat-insulating shield 9, use the second heat insulation layer 16 (the present embodiment employing glass wool heat insulating material) to fill the gap between the seat of honour 20 of hard polyurethane foams filling block 15 and heat-insulating shield 9.
After completing installation and the filling of heat-insulating shield 9, making layer of glass enhanced plastic protective layer 17 in the outside of heat-insulating shield 9, its manufacture method includes: use resin glue at heat-insulating shield 9 some layers of glass chopped strand mats of surface mount；Layer of glass surface felt is pasted at outermost layer；One layer of waterproof sealing agent it is coated with in the joint of fiberglass reinforced plastic protective layer.
As shown in Figure 8, the construction method of the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure, comprise the steps:
Step S1, based on standard size specification complete supporting mechanism, spatter shield 7, hard polyurethane foams heat-insulating shield 9, bolt mechanism, filling heat insulator prefabricated；
Step S2, welds supporting mechanism and bolt pedestal 5 on main screen wall 7 according to regulating position；
Step S3, by spatter shield 7 according to seal request welded and installed on supporting mechanism；
Step S4, is fixed on hard polyurethane foams heat-insulating shield 9 module in spatter shield 7 structure by low temperature glue and bolt mechanism；
Step S5, is packed into filling heat insulator in the gap between hard polyurethane foams heat-insulating shield 9；
Step S6, makes layer protective layer 17 outside adiabator.
Above specific embodiments of the invention are described.It is to be appreciated that the invention is not limited in above-mentioned particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or revise, and this has no effect on the flesh and blood of the present invention.When not conflicting, embodiments herein and the feature in embodiment can arbitrarily be mutually combined.
Claims (10)
1. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure, it is characterised in that including:
Spatter shield, described spatter shield is disposed on main screen wall by supporting mechanism；
Bolt mechanism, described bolt mechanism is arranged on described main screen wall；
Heat-insulating shield, described heat-insulating shield is fixed on described spatter shield by described bolt mechanism.
2. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 1, it is characterised in that described bolt mechanism includes:
Bolt pedestal, described bolt pedestal is arranged on described main screen wall；
Screw rod, one end of described screw rod is connected with described screw rod pedestal by screw thread, and the other end of described screw rod is through described spatter shield, and the other end of described screw rod is arranged in described heat-insulating shield；
Plywood cushion block and washer nut, described plywood cushion block and described washer nut are arranged on the other end of described screw rod.
3. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 2, it is characterised in that the quantity of described heat-insulating shield is several, between several described heat-insulating shields, interval is arranged.
4. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 1,2 or 3, it is characterised in that the cross section of described heat-insulating shield is convex, and described heat-insulating shield includes:
Base, described base is arranged on described spatter shield, has the first through hole running through described base on described base；
The seat of honour, the described seat of honour is arranged on described base, has the second through hole running through the described seat of honour on the described seat of honour；Wherein
Described first through hole connects with described second through hole, and described screw rod is arranged in described first through hole through the part of described spatter shield, and described plywood cushion block and described washer nut are arranged in described second through hole.
5. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 4, it is characterised in that be filled with packed column in described first through hole.
6. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 4, it is characterised in that be filled with filler plug in described second through hole.
7. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 4, it is characterized in that, the first heat insulation layer it is provided with between described base, between the described seat of honour, it is provided with filling block, the described filling block both sides contact surface with the described seat of honour is respectively equipped with the second heat insulation layer.
8. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 4, it is characterised in that the upper surface at the described seat of honour is pasted with protective layer.
9. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 1, it is characterised in that described supporting mechanism includes:
Support member, described support member is arranged on described main screen wall；
Lath, described lath is arranged on described main screen wall by described support member, and the edge of described spatter shield is connected with described lath.
10. the independent Type B LNG ship cargo tank adiabatic system with spatter shield structure according to claim 1 or 9, it is characterised in that the spacing between described spatter shield and described main screen wall is 10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074852.4A CN105736903B (en) | 2016-02-02 | 2016-02-02 | Independent Type B LNG ship cargo tank adiabatic system with spatter shield structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074852.4A CN105736903B (en) | 2016-02-02 | 2016-02-02 | Independent Type B LNG ship cargo tank adiabatic system with spatter shield structure |
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| Publication Number | Publication Date |
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| CN105736903A true CN105736903A (en) | 2016-07-06 |
| CN105736903B CN105736903B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610074852.4A Active CN105736903B (en) | 2016-02-02 | 2016-02-02 | Independent Type B LNG ship cargo tank adiabatic system with spatter shield structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516017A (en) * | 2016-12-21 | 2017-03-22 | 上海交通大学 | Thermal insulation system for B-type liquid cargo tank of liquified natural gas carrier, and construction method of thermal insulation system |
| CN109606567A (en) * | 2018-06-15 | 2019-04-12 | 沪东中华造船(集团)有限公司 | A kind of leakage guiding device of LNG ship Type B containment system |
| CN113460222A (en) * | 2021-08-19 | 2021-10-01 | 大连船舶重工集团有限公司 | B-type storage cabin split type secondary screen wall |
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| CN104802937A (en) * | 2015-04-23 | 2015-07-29 | 上海交通大学 | Liquefied natural gas carrier independent cargo space insulation layer system and construction method thereof |
| US9488313B2 (en) * | 2012-02-10 | 2016-11-08 | Aerogel Card D.O.O. | Tank container for transport and storage of cryogenic liquefied gases |
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| US4207827A (en) * | 1976-08-20 | 1980-06-17 | Michel Gondouin | System, tooling and method of construction of cryogenic tanks for LNG tankers and for LNG storage |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516017A (en) * | 2016-12-21 | 2017-03-22 | 上海交通大学 | Thermal insulation system for B-type liquid cargo tank of liquified natural gas carrier, and construction method of thermal insulation system |
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| CN109606567A (en) * | 2018-06-15 | 2019-04-12 | 沪东中华造船(集团)有限公司 | A kind of leakage guiding device of LNG ship Type B containment system |
| CN113460222A (en) * | 2021-08-19 | 2021-10-01 | 大连船舶重工集团有限公司 | B-type storage cabin split type secondary screen wall |
| CN113460222B (en) * | 2021-08-19 | 2024-02-02 | 大连船舶重工集团有限公司 | Split type secondary screen wall of B-type storage cabin |
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|---|---|
| CN105736903B (en) | 2018-05-01 |
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