CN105736903B - Independent Type B LNG ship cargo tank adiabatic system with spatter shield structure - Google Patents

Independent Type B LNG ship cargo tank adiabatic system with spatter shield structure Download PDF

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Publication number
CN105736903B
CN105736903B CN201610074852.4A CN201610074852A CN105736903B CN 105736903 B CN105736903 B CN 105736903B CN 201610074852 A CN201610074852 A CN 201610074852A CN 105736903 B CN105736903 B CN 105736903B
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China
Prior art keywords
shield
heat
spatter
spatter shield
cargo tank
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CN201610074852.4A
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CN105736903A (en
Inventor
巨永林
傅允准
李国隆
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/02Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00Hulls characterised by their structure or component parts
    • B63B3/14Hull parts
    • B63B3/56Bulkheads; Bulkhead reinforcements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/10Bandages 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

A kind of independent Type B LNG ship cargo tank adiabatic system with spatter shield structure provided by the invention, including:Spatter shield, spatter shield are disposed on main screen wall by supporting mechanism;Bolt mechanism, bolt mechanism are arranged on main screen wall;Heat-insulating shield, heat-insulating shield are fixed on spatter shield by bolt mechanism.Beneficial effects of the present invention are as follows:Each component using modularization making, installation, unified standard criterion can be used in these prefabricated components, reduces the workload and cost of processing and fabricating;It is relatively independent between each thermal insulation plate module, when wherein there is module to be damaged, other modules are not interfered with, improve the reliability of heat insulation layer, and an impaired module need to be only removed when repairing and damaging module and carries out local route repair, easy to safeguard and repair;Adiabatic system is applicable not only to independent Type B LNG ship cargo tank, could be used that in the heat-insulation system on the Low Temperature Liquid goods storage tank of some other bank base or as other low temperature places.

Description

Independent Type B LNG ship cargo tank adiabatic system with spatter shield structure
Technical field
The present invention relates to novel liquefied natural gas ship building technology field, particularly one kind to be suitable for independent Type B LNG ship liquid The independent Type B LNG ship cargo tank adiabatic system with spatter shield structure of cargo hold.
Background technology
Liquefied natural gas (LNG) refers to main component being cooled to about -163 DEG C for the natural gas of methane and is compressed to it Colourless, the transparent cryogenic liquid of the 1/600 of gas volume.It is a kind of important clean energy resource.LNG carrier is then liquid Change the seaborne main conveyance of natural gas, be a kind of high-tech, highly difficult and high added value ship, be known as the world Shipbuilding " jewel on imperial crown ".
For any kind of LNG ship, adiabatic system is all the core of liquid goods containment system.Liquefied natural gas (LNG) ship is being navigated The temperature difference of liquid goods and external environment is up to nearly 200 DEG C in row, therefore has substantial amounts of heat and flow into cabin by liquid goods containment system It is interior, cause liquid goods to evaporate, on the one hand cause loss of goods, on the other hand substantial amounts of liquid goods evaporation can cause the pressure in cargo tank Rise, endangers the navigation safety of ship.Therefore one layer of good heat insulation layer of heat-proof quality of installation around cargo tank is needed to enclose Protecting system.In view of independent Type B cargo tank is a kind of cabin type of unique structure, its insulating structure and current Technical comparing maturation Membrane LNG tanker insulating structure is very different, therefore how to solve the problems, such as that independent the adiabatic of Type B LNG ship cargo tank becomes One of key problem urgently to be resolved hurrily during new independent Type B LNG ship is built in the future.
The content of the invention
For in the prior art the defects of, solve the exhausted of independent Type B LNG ship cargo tank the object of the present invention is to provide a kind of The independent Type B LNG ship cargo tank adiabatic system of heat problem.
A kind of in order to solve the above technical problems, independent Type B LNG ship cargo tank with spatter shield structure provided by the invention Adiabatic system, including:Spatter shield, the spatter shield are disposed on main screen wall by supporting mechanism;Bolt mechanism, the spiral shell Bolt mechanism is arranged on the main screen wall;Heat-insulating shield, the heat-insulating shield are fixed on the spatter shield by the bolt mechanism.
Preferably, the bolt mechanism includes:Bolt pedestal, the bolt pedestal are arranged on the main screen wall;Screw rod, One end of the screw rod is connected by screw thread with the screw rod pedestal, and the other end of the screw rod passes through the spatter shield, institute The other end for stating screw rod is arranged in the heat-insulating shield;Glued board spacer and washer nut, the gluing board spacer and the pad Ring nut is arranged on the other end of the screw rod.
Preferably, the quantity of the heat-insulating shield is several, is arranged at intervals between several described heat-insulating shields.
Preferably, the cross section of the heat-insulating shield is convex, and the heat-insulating shield includes:Base, the base are arranged on On the spatter shield, the first through hole through the base is provided with the base;The seat of honour, the seat of honour are arranged on the bottom On seat, the second through hole through the seat of honour is provided with the seat of honour;Wherein described first through hole connects with second through hole Logical, the part of the screw rod through the spatter shield is arranged in the first through hole, the gluing board spacer and the packing ring Nut is arranged in second through hole.
Preferably, packed column is filled with the first through hole.
Preferably, filler plug is filled with second through hole.
Preferably, the first heat insulation layer is equipped between the base, filling block is equipped between the seat of honour, is filled out described Block both sides are filled with being respectively equipped with the second heat insulation layer on the contact surface at the seat of honour.
Preferably, matcoveredn is pasted in the upper surface at the seat of honour.
Preferably, the supporting mechanism includes:Supporting item, the supporting item are arranged on the main screen wall;Lath, it is described Lath is arranged on the main screen wall by the supporting item, and the edge of the spatter shield is connected with the lath.
Preferably, the spacing between the spatter shield and the main screen wall is 10 millimeters.
Compared with prior art, beneficial effects of the present invention are as follows:
1) each component is using modularization making, installation, on the one hand, unified mark can be used in these prefabricated components Quasi- specification, reduces the workload and cost of processing and fabricating;On the other hand, it is relatively independent between each adiabatic plate module, when it In when thering is the module to be damaged, do not interfere with other modules, improve the reliability of heat insulation layer, and mould is damaged repairing An impaired module need to be only removed during block and carries out local route repair, easy to safeguard and repair;
2) communicating passage between spatter shield and cargo tank main screen wall can be in the case where minor leakage occurs for main screen wall Ensure that LNG liquid goods will not be leaked in heat insulation layer, meet the related specifications requirement of LNG ship oceangoing ship construction;
3) the installation fixation of hard polyurethane foams heat-insulating shield employs polyurethane adhesive bonding and bolt mechanism fixes two kinds Mode, selected polyurethane glue can be normally bonded under cryogenic, ensure that the reliability of heat-insulating shield installation;
4) filling block between the main heat-insulating shield of hard polyurethane foams can effectively buffer the deformation of expanding with heat and contract with cold of heat-insulating shield, Also the squeezing action between the heat-insulating shield that generation is rocked due to ship can be buffered;
5) the convex design of the main heat-insulating shield of hard polyurethane foams can effectively reduce the leakage heat at packing material, will fill out Fill space be divided into two sections also can for installation packing material when enough spaces be provided, easy to construct;
6) enhanced fiberglass plastic protective layer can be effectively increased the surface strength of polyurethane adiabatic material so that absolutely Hot material is hardly damaged, and protective layer is also equipped with the protective action 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 in the Low Temperature Liquid of some other bank base Heat-insulation system on goods storage tank or as other low temperature places.
Brief description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, further feature mesh of the invention And advantage will become more apparent upon.
Fig. 1 is the independent Type B LNG ship cargo tank adiabatic system complete layout that the present invention carries spatter shield structure;
Fig. 2 is the independent Type B that independent Type B LNG ship cargo tank adiabatic system of the present invention with spatter shield structure is applicable in LNG ship cargo tank storage tank figure;
Fig. 3 is that the supporting mechanism arrangement of independent Type B LNG ship cargo tank adiabatic system of the present invention with spatter shield structure is shown It is intended to;
Fig. 4 is the spatter shield mounting arrangements of independent Type B LNG ship cargo tank adiabatic system of the present invention with spatter shield structure Schematic diagram;
Fig. 5 is the hard polyurethane foams of independent Type B LNG ship cargo tank adiabatic system of the present invention with spatter shield structure Main heat-insulating shield mounting arrangements schematic diagram;
Fig. 6 is the packing material arrangement of independent Type B LNG ship cargo tank adiabatic system of the present invention with spatter shield structure Figure;
Fig. 7 is the fiberglass reinforced of independent Type B LNG ship cargo tank adiabatic system of the present invention with spatter shield structure Plastic protective layer layout drawing;
Fig. 8 is the structure of the independent Type B LNG ship cargo tank adiabatic system provided in an embodiment of the present invention with spatter shield structure The flow chart of construction method.
In figure:
1- main screen wall 2- supporting item 3- first through hole
4- the second through hole 5- bolt pedestal 6- laths
7- spatter shield 8- screw rod 9- heat-insulating shields
10- packed column 11- gluing board spacer 12- packing rings
13- filler plugs 14- the first heat insulation layer 15- filling blocks
16- the second heat insulation layer 17- protective layer 18- nuts
The 19- base 20- seats of honour
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiments will be helpful to the technology of this area Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention Protection domain.
As shown in Fig. 1~Fig. 7, the technology of independent Type B LNG ship cargo tank adiabatic system of the present invention with spatter shield structure Scheme solves the problems, such as the adiabatic of the type cargo tank, the main screen wall 1 that the bulkhead of cargo tank is, provided by the invention to carry spatter shield knot The adiabatic system of structure is installed on cargo tank main screen wall 1.
Supporting mechanism includes supporting item 2, and supporting item 2 is welded on main screen wall 1, and bolt pedestal 5 is also welded to main screen wall 1 On, supporting mechanism further includes lath 6, and 6 welded and installed of lath is on supporting item 2.Supporting mechanism play fixed support spatter shield 7 Effect, the lower end big disk of bolt pedestal 5 also functions to the effect of support spatter shield 7, its supporting role can ensure spatter shield 7 with The communicating passage of a clean width (10 millimeters) is formed between main screen wall 1, its supporting role can also ensure the smooth of spatter shield 7 Degree.
Spatter shield 7 is welded on lath 6, and two holes that can pass through 5 upper end of bolt pedestal are provided with spatter shield 7.Peace When filling spatter shield 7, full weld is needed to ensure leakproofness, spatter shield 7 and bolt base between four sides of rectangle spatter shield 7 and lath 6 Welded seal is also needed between seat 5.5 center of bolt pedestal is provided with threaded hole, for fixing hard polyurethane foams heat-insulating shield 9 and spiral shell Bar 8, uses between the lower end of screw rod 8 and bolt pedestal 5 and is threadedly coupled.
Hard polyurethane foams heat-insulating shield 9 is convex rectangular parallelepiped structure, and it is first logical to be provided with installation bolt mechanism for centre 3 and second through hole 4 of hole.One layer of low temperature glue bond is used between hard polyurethane foams heat-insulating shield 9 and spatter shield 7, secondly, is used The fixed hard polyurethane foams heat-insulating shield 9 of bolt mechanism auxiliary, bolt mechanism include bolt pedestal 5, screw rod 8, wooden packed column 10th, glued board spacer 11, packing ring 12 and nut 18.
After the installation of completion hard polyurethane foams heat-insulating shield 9, it is necessary to using between filling heat insulator filling heat-insulating shield Clearance space.The first through hole 3 in heat-insulating shield 9 is filled using wooden packed column 10, uses cylindrical hard polyurethane foams The second through hole 4 in heat-insulating shield 9 is filled in filler plug 13.Use the first heat insulation layer 14 (the present embodiment uses glass wool heat insulating material) Fill heat-insulating shield 9 base 19 between gap, using hard polyurethane foams filling block 15 fill heat-insulating shield 9 the seat of honour 20 it Between wide arc gap, use the second heat insulation layer 16 (the present embodiment uses glass wool heat insulating material) filling hard polyurethane foams fill Gap between block 15 and the seat of honour 20 of heat-insulating shield 9.
After the installation and filling of completing heat-insulating shield 9, layer of glass enhanced plastic is made in the outside of heat-insulating shield 9 Protective layer 17, its production method include:If using resin glue in 9 surface mount dried layer glass chopped strand mats of heat-insulating shield;Most Outer tire layer layer of glass surface felt;One layer of waterproof sealing is applied in the joint of fiberglass reinforced plastic protective layer Agent.
As shown in figure 8, the construction method of the independent Type B LNG ship cargo tank adiabatic system of spatter shield structure, including following step Suddenly:
Step S1, supporting mechanism, spatter shield 7, hard polyurethane foams heat-insulating shield 9, spiral shell are completed based on standard size specification Bolt mechanism, filling heat insulator it is prefabricated;
Step S2, supporting mechanism and bolt pedestal 5 are welded 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, splashproof is fixed on by 9 module of hard polyurethane foams heat-insulating shield by low temperature glue and bolt mechanism Shield in 7 structures;
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 on the outside of heat-insulating material.
The specific embodiment of the present invention is described above.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 or change within the scope of the claims, this not shadow Ring the substantive content of the present invention.In the case where there is no conflict, the feature in embodiments herein and embodiment can any phase Mutually combination.

Claims (6)

  1. A kind of 1. independent Type B LNG ship cargo tank adiabatic system with spatter shield structure, it is characterised in that including:
    Spatter shield, the spatter shield are disposed on main screen wall by supporting mechanism;
    Bolt mechanism, the bolt mechanism are arranged on the main screen wall;
    Heat-insulating shield, the heat-insulating shield are fixed on the spatter shield by the bolt mechanism;
    The bolt mechanism includes:
    Bolt pedestal, the bolt pedestal are arranged on the main screen wall;
    Screw rod, one end of the screw rod are connected by screw thread with the screw rod pedestal, and the other end of the screw rod is described in Spatter shield, the other end of the screw rod are arranged in the heat-insulating shield;
    Glued board spacer and washer nut, the gluing board spacer and the washer nut are arranged on other the one of the screw rod End;
    The cross section of the heat-insulating shield is convex, and the heat-insulating shield includes:
    Base, the base are arranged on the spatter shield, and the first through hole through the base is provided with the base;
    The seat of honour, the seat of honour are arranged on the base, and the second through hole through the seat of honour is provided with the seat of honour;Wherein
    The first through hole is connected with second through hole, and the part of the screw rod through the spatter shield is arranged on described first In through hole, the gluing board spacer and the washer nut are arranged in second through hole;
    The supporting mechanism includes:
    Supporting item, the supporting item are arranged on the main screen wall;
    Lath, the lath are arranged on the main screen wall by the supporting item, the edge of the spatter shield and the lath Connection;
    Spacing between the spatter shield and the main screen wall is 10 millimeters.
  2. 2. the independent Type B LNG ship cargo tank adiabatic system according to claim 1 with spatter shield structure, its feature exist In the quantity of the heat-insulating shield is several, is arranged at intervals between several described heat-insulating shields.
  3. 3. the independent Type B LNG ship cargo tank adiabatic system according to claim 1 with spatter shield structure, its feature exist In being filled with packed column in the first through hole.
  4. 4. the independent Type B LNG ship cargo tank adiabatic system according to claim 1 with spatter shield structure, its feature exist In being filled with filler plug in second through hole.
  5. 5. the independent Type B LNG ship cargo tank adiabatic system according to claim 1 with spatter shield structure, its feature exist In being equipped with the first heat insulation layer between the base, filling block be equipped between the seat of honour, in the filling block both sides and institute State and the second heat insulation layer is respectively equipped with the contact surface at the seat of honour.
  6. 6. the independent Type B LNG ship cargo tank adiabatic system according to claim 1 with spatter shield structure, its feature exist In in the upper surface at seat of honour stickup matcoveredn.
CN201610074852.4A 2016-02-02 2016-02-02 Independent Type B LNG ship cargo tank adiabatic system with spatter shield structure Active CN105736903B (en)

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CN105736903B true CN105736903B (en) 2018-05-01

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106516017B (en) * 2016-12-21 2019-03-12 上海交通大学 The adiabatic system and its building method of LNG carrier Type B cargo tank
CN109606567B (en) * 2018-06-15 2021-01-29 沪东中华造船(集团)有限公司 Leakage flow guide device of LNG ship B-shaped containment system
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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Publication number Priority date Publication date Assignee Title
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
CN104443282A (en) * 2014-10-24 2015-03-25 上海交通大学 B-type independent LNG liquid cargo tank thermal insulation layer installation fixing mechanism and method
CN104443284A (en) * 2014-10-24 2015-03-25 上海交通大学 Liquefied natural gas carrier B type independent liquid cargo tank thermal insulation system and construction method thereof
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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SG42438A1 (en) * 1995-09-27 1997-08-15 Motorola Inc Process for fabricating a CVD aluminium layer in a semiconductor device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US9488313B2 (en) * 2012-02-10 2016-11-08 Aerogel Card D.O.O. Tank container for transport and storage of cryogenic liquefied gases
CN104443282A (en) * 2014-10-24 2015-03-25 上海交通大学 B-type independent LNG liquid cargo tank thermal insulation layer installation fixing mechanism and method
CN104443284A (en) * 2014-10-24 2015-03-25 上海交通大学 Liquefied natural gas carrier B type independent liquid cargo tank thermal insulation system and construction method thereof
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

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