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CN105711751B - The installation method of A type independent liquid cargo tanks corner floatation stopping device insulation - Google Patents

The installation method of A type independent liquid cargo tanks corner floatation stopping device insulation Download PDF

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Publication number
CN105711751B
CN105711751B CN201410723703.7A CN201410723703A CN105711751B CN 105711751 B CN105711751 B CN 105711751B CN 201410723703 A CN201410723703 A CN 201410723703A CN 105711751 B CN105711751 B CN 105711751B
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China
Prior art keywords
corner
stopping device
cargo tank
expanded material
floatation stopping
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CN201410723703.7A
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CN105711751A (en
Inventor
李小灵
陈建平
朱彦
陈康
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Jiangnan Shipyard Group Co Ltd
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Jiangnan Shipyard Group Co Ltd
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Abstract

The present invention provides a kind of installation method of A types independent liquid cargo tank corner floatation stopping device insulation; the corner floatation stopping device includes floor, installation panel, chock groove and chock; the installation method of the insulation is mainly protected each corner floatation stopping device using expanded material; prevent the heat transfer between metal and cause thermal losses, key step of the invention includes the removing surface of cargo tank and corner floatation stopping device, spraying corrosion resistant coating, spray coating foaming material, passes through die cavity and irrigate expanded material, sprayed protection coating.The problem of can efficiently solving corner floatation stopping device insulating mounting inconvenience by above-mentioned steps, and because the present invention is directed to the design feature of A type independent liquid cargo tanks, simultaneously using spray coating foaming material and perfusion expanded material, therefore insulation effect can effectively be ensured, ensure the tight of insulating mounting, prevent the heat outside cargo tank to be passed to inside cargo tank.

Description

The installation method of A type independent liquid cargo tanks corner floatation stopping device insulation
Technical field
The present invention relates to a kind of installation method of A types independent liquid cargo tank corner floatation stopping device insulation.
Background technology
Liquefied gas carrier is the specialized ships for the Low Temperature Liquid goods such as conveying liquified oil gas, liquefied natural gas, these liquid goods It is loaded in the cargo tank of liquefied gas carrier, because the temperature of liquid goods is low, insulation is installed in the outer surface of cargo tank.Liquid goods The main purpose of cabin insulation is to reduce the evaporation capacity of liquid goods to prevent the heat of outside from entering inside cargo tank.
According to the type of loading liquid goods and workplace and other aspects, the cargo tank on liquefied gas carrier is divided into A types, B Three kinds of type and c-type, wherein A types independent liquid cargo tank is mainly slab construction, there is complete shielding;Type B independent liquid cargo tank is flat Harden structure is spherical tank formula, there is part time shielding;C-type independent liquid cargo tank is spherical tank formula, without time shielding.According to above-mentioned three kinds of liquid The architectural characteristic of cargo hold and the difference of performance requirement, it installs the methods of insulation, and there is also difference.Wherein A types independence liquid goods Cabin is connected by support system with hull, and liquid goods temperature is low in cargo tank, and extraneous temperature is far longer than this temperature, so must It must be reached insulation with a set of effective insulation system and be prevented that the heat of outside from entering the purpose of cargo tank, reduces liquid goods The evaporation capacity of liquid in the cabin of cabin;But A type independent liquid cargo tanks are complicated, the supporting construction being connected with cargo tank is numerous, such as anti- Rolling bearing, anti-pitching bearing, vertical bearing, floatation stopping device etc.;Wherein floatation stopping device includes top surface floatation stopping device and corner again Floatation stopping device, the top surface floatation stopping device are used to prevent cargo tank top surface from contacting with hull and damaging cargo tank, and the corner is stopped Floating device is used to prevent the corner of cargo tank from contacting with hull and damaging cargo tank.
In summary, not only to solve the insulation of cargo tank main part, more to focus on the components such as these bearings and liquid goods Cabin forms the insulation of compound body.The structure of these components often interlock by type complexity, structure, and not only installation is inconvenient, Er Qieji Art requires high, careless omission also easily occurs and causes hull general defect, so how preferably to be installed on these supporting members exhausted Edge is that those skilled in the art need to solve the problems, such as.
The content of the invention
The technical problem to be solved in the present invention is to provide the A type independent liquid cargo tanks angle that a kind of step is simple and convenient to operate The installation method of portion's floatation stopping device insulation, to overcome the drawbacks described above of prior art.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that:A kind of A types independent liquid cargo tank corner is only floating The installation method of device insulation, the corner floatation stopping device are arranged on the corner location that the cargo tank top surface intersects with side, The corner floatation stopping device includes the installation panel being connected by multiple floors with cargo tank, and the installation panel is angularly disposed, The installation panel top surface is provided with chock groove, and chock is provided with the chock groove, and the installation method of the insulation includes following step Suddenly:
First, after cargo tank completes, outer surface and corner floatation stopping device to cargo tank carry out polishing derusting;
2nd, the cargo tank outer surface after polishing and corner floatation stopping device rust prevention by applying liquid material priming paint, treat that anti-corrosive primer solidifies Removing surface is carried out to cargo tank outer surface afterwards, removes water, oil, dust and other pollutants;
3rd, in the outer surface of cargo tank and corner floatation stopping device spraying corrosion resistant coating;
4th, in the expanded material of anticorrosive coat surface spraying first of cargo tank, the first expanded material thickness of spraying is 110mm ~135mm, after cargo tank has sprayed, the first foaming material is sprayed to the corner floatation stopping device part between installation panel and cargo tank Material, the first expanded material cover whole floors, are protected after the first expanded material dry tack free to the first expanded material surface spraying Protect coating;
The 5th, one die cavity is set on the floatation stopping device of corner, the die cavity includes frame and cover plate, and die cavity is provided with perfusion Mouthful, the through hole to match with chock is provided with the cover plate, after die cavity is arranged on the floatation stopping device of corner, the lid of the die cavity Plate does not contact with chock groove, and the edge of die cavity frame is pasted onto the first expanded material surface sprayed, then passes through filling Geat is to the expanded material of mould intra-bladder instillation second;
6th, after full second expanded material being irrigated in die cavity, one hour is stood, is then stripped die cavity;
7th, it is solid to the surface spraying protective coating of the second expanded material of dry perfusion, protective coating after the die cavity demoulding After change, the corner floatation stopping device insulating mounting of cargo tank is completed.
Preferably, the first expanded material in step 4 on cargo tank sprays 4~6 thickness for reaching 110mm~135mm Degree.
Preferably, in step 5, before die cavity is arranged on the floatation stopping device of corner, one layer is laid in die cavity inner surface Release sheet.
Preferably, in step 5, after die cavity is arranged on the floatation stopping device of corner, in the through hole and pad of die cavity cover plate Packing matcrial between wood.
Preferably, after the step 6 die cavity demoulding, the second expanded material of perfusion is apart from the end face of chock at least 5mm.
Preferably, after step 6 terminates, the angle between the first expanded material of spraying and the second expanded material of perfusion Sealant is set at seam.
Preferably, the protective coating thickness in the step 7 is 1mm.
Preferably, the outer surface of first expanded material, the second expanded material is apart from the floor of corner floatation stopping device Any plate face at least 50mm.
Preferably, the outer surface of the first invention material, the second expanded material is apart from the floor of corner floatation stopping device Any corner angle at least 25mm
As described above, a kind of installation method of A types independent liquid cargo tank corner of the invention floatation stopping device insulation, has with following Beneficial effect:
The present invention is directed to the design feature of A type independent liquid cargo tanks corner floatation stopping device, at the same using spray coating foaming material and Irrigate expanded material, therefore can effectively ensure insulation effect, it is ensured that insulating mounting it is tight, prevent the heat outside cargo tank Inside the incoming cargo tank of amount.In addition, the operating process of the present invention is simple, common staff is operable, without spending largely Time goes to learn.The present invention makes cargo tank, corner floatation stopping device and insulation three passerby one, and organically sealing is overall, effectively Solve corner floatation stopping device conducting problem easily occurs and loses the situation of temperature.The present invention is made that for modern liquefied gas carrier field Contribution, there is extensive popularizing value.
Brief description of the drawings
Fig. 1 is cargo tank and schematic diagram after the installation of liquefied gas carrier hull.
Fig. 2 is that corner floatation stopping device does not install the schematic diagram of insulation at H in Fig. 1.
Fig. 3 is the corner floatation stopping device scheme of installation on cargo tank.
Fig. 4 is the schematic diagram of the expanded material of spraying first of the present invention.
Fig. 5 is the schematic diagram of the expanded material of perfusion second of the present invention.
Fig. 6 is the schematic diagram that the present invention installs insulation.
Fig. 7 is enlarged drawing at A in Fig. 6.
Fig. 8 is enlarged drawing at B in Fig. 6.
Fig. 9 is direction view at C-C in Fig. 6.
In figure:The corner floatation stopping device of 1 cargo tank 11
The floor of 12 top surface floatation stopping device 2
The chock groove of 21 installation panel 22
The expanded material of 23 chock 31 first
The frame of 32 second expanded material 41
The protective coating of 42 cover plate 61
The sealant of 62 protective coating 7
9 hulls
Embodiment
Structure, ratio, size depicted in Figure of description etc., only to coordinate the content disclosed in specification, with Understand for those skilled in the art and read, be not limited to the enforceable qualifications of the present invention, therefore do not have technically Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, can be generated not influenceing the present invention Under effect and the purpose that can reach, all should still it fall in the range of disclosed technology contents can be covered.Meanwhile Cited such as " on ", " under ", "front", "rear", " centre " term, are merely convenient to the clear of narration in this specification, and It is not used to limit the enforceable scope of the present invention, its relativeness is altered or modified, in the case where changing technology contents without essence, when Also it is considered as the enforceable category of the present invention.
As shown in figure 3, being provided with corner floatation stopping device 11 between the top surface of cargo tank 1 and side, set on the top surface of cargo tank 1 There is top surface floatation stopping device 12.
A kind of installation method of A types independent liquid cargo tank corner of the invention floatation stopping device insulation, as shown in Figure 1, Figure 2, Figure 3 shows, The corner floatation stopping device 11 is arranged on the corner location that the top surface of cargo tank 1 intersects with side, the corner floatation stopping device 11 installation panels 21 including being connected by multiple floors 2 with cargo tank 1, the installation panel 21 is angularly disposed, the installation The top surface of panel 21 is provided with chock groove 22, and chock 23 is provided with the chock groove 22.With reference to Fig. 1-Fig. 9, insulation of the present invention Installation method comprises the following steps:
First, it is overall to the outer surface of cargo tank 1 and corner floatation stopping device 11 to beat after cargo tank 1 completes Rust is abraded, because the volume of cargo tank 1 is big, weight is big, it is all overall one of cargo tank that above-mentioned cargo tank 1, which completes, Point, each several part is then lifted into progress block splicing in hull 9.
Cargo tank outer surface and the rust prevention by applying liquid material priming paint of corner floatation stopping device 11 after polishing, the anti-corrosive primer is iron The materials such as red or aluminium powder, preferable in the present embodiment, the anti-corrosive primer is inorganic silicon yellow zinc chromate primer paint.It is right after anti-corrosive primer solidification Cargo tank outer surface and corner floatation stopping device 11 carry out removing surface, remove water on anti-corrosive primer surface, oil, dust and its His pollutant;After cleaning is good, in the outer surface of cargo tank 1 and the spraying corrosion resistant coating of corner floatation stopping device 11.The anticorrosive coat is not It can only prevent water or moisture from entering follow-up expanded material, and because the tensile strength of this anti-corrosion layer material is higher than hair The tensile strength that foam material and cargo tank 1 are joined directly together, therefore the viscous of the low temperature steel surface of cargo tank 1 and expanded material can also be improved Conjunction situation.The anti-corrosion layer material is inorganic zinc primer.
After anticorrosive coat solidification, as shown in Figure 3, Figure 4, the first expanded material is sprayed on the anticorrosive coat of cargo tank outer surface 31, the thickness of the first expanded material 31 of spraying is 110mm~135mm, after cargo tank 1 has sprayed, to installation panel 21 and liquid The part of corner floatation stopping device 11 between cargo hold 1 sprays the first expanded material 31, and the first expanded material 31 covers all floors 2, The first expanded material 31 is filled up into the space formed between adjacent floor 2 simultaneously.In order that the first foaming of cargo tank outer surface Material thickness is in above-mentioned size range, so the first expanded material 31 sprays several times, in order to spraying staff with When check spraying thickness, reduce error, ensure coating quality, the staff of spraying can be checked by elongated iron pin The thickness of first expanded material.Drawn according to actual tests operation, spray 4~6 thickness that can reach 110mm~135mm, And it is that spray coating operations are completed with the minimum time on the premise of coating quality is ensured.Also to ensure to spray every time in spraying All it is to spray next layer again after last layer the first expanded material surface cure, prevents because the first expanded material 31 does not solidify And influence insulated heat effect.After the spraying of the first expanded material 31 terminates, after the dry tack free of the first expanded material 31, To the surface spraying protective coating 61 of the first expanded material 31, the protective coating 61 is to play mechanical protection and the work of waterproof With the thickness at least 1mm of protective coating 61, preferably ensureing overall service behaviour by protective coating 61.Protective coating 61 spray several times, and the thickness once sprayed is in 0.5mm or so.
According to above it will be appreciated that, cargo tank 1 is the installation insulated in segmentation, then again block splice, block splicing Typically by the way of welding, welding can produce high temperature, and high temperature easily causes the thawing of expanded material, burning, or even causes fire Calamity, so in order to prevent the generation of this dangerous situation, the position of the first expanded material 31 of spraying and have welding, hot The position of the operations such as cutting will reserve a segment distance, and its distance will at least have 500mm, and then ensure that heat does not interfere with first Expanded material 31.
After completing above-mentioned work, with reference to Fig. 3, Fig. 4, Fig. 5, Fig. 9, a die cavity, institute are set on corner floatation stopping device 11 Stating die cavity includes frame 41 and cover plate 42, and the frame 41 and cover plate 42 form die cavity, the die cavity energy by way of splicing Enough accommodate the whole structure of corner floatation stopping device 11 including each floor 2, it is ensured that the insulation of whole corner floatation stopping device 11 The tightness of installation.The die cavity is provided with perfusing hole, and perfusing hole is generally located on the overall upper end-face edge position of die cavity, to prevent The second expanded material 32 only subsequently irrigated is revealed;The through hole to match with chock 23 is provided with the cover plate 42.In installation mould During chamber, cover plate 42 is enclosed on chock 23, then frame 41 and cover plate 42 are stitched together, then the edge of frame 41 is pasted On the surface of the second expanded material 32 sprayed, the last packing matcrial between the through hole and chock 23 of cover plate 42, Prevent the second expanded material 32 that may be present from revealing.When installing die cavity, it is to be ensured that the cover plate 42 of die cavity not with chock groove 22 Contact, will also be filled between chock 23 and chock groove 22 during its purpose is to ensure subsequently irrigate the second expanded material expires second Expanded material 32, and prevent chock groove 22 to be exposed and cause the imprecision that insulate.As shown in figure 8, the step 6 die cavity After the demoulding, the second expanded material 32 of perfusion protrudes from the second hair of perfusion apart from the end face of chock 23 at least 5mm, i.e. chock 23 The distance of foam material 32 is at least 5mm.
After die cavity is had good positioning, by perfusing hole to the second expanded material of mould intra-bladder instillation 32.In this step, in order to just In die cavity in the curing and demolding of the second expanded material 32, before the die cavity is arranged on corner floatation stopping device 11, in die cavity One layer of release sheet is laid on surface, and then facilitates die cavity to be stripped.One hour is stood after die cavity is filled into the second expanded material 32, allows mould The second expanded material solidification of intracavitary, is stripped after the solidification of the second expanded material 32 to die cavity, as Figure 6-Figure 8, the die cavity demoulding Afterwards, sealant 7 is set at the angle seam between the first expanded material 31 of spraying and the second expanded material 32 of perfusion, irrigated The second expanded material 32 and chock 23 between angle seam be also provided with sealant 7, be further ensured that insulation effect;Then to drying Perfusion the second expanded material 32 surface spraying protective coating 62, the thickness at least 1mm of protective coating 62, protective coating 62 divides Repeatedly spraying, the thickness once sprayed is in 0.5mm or so.
In the implementation process of the present invention, with reference to Fig. 3 and Fig. 8, the first expanded material 31 either sprayed or perfusion The second expanded material 32, any plate face at least 50mm of its outer surface apart from the floor 2 of corner floatation stopping device 11 after hardening; First expanded material 31, the second expanded material 32 outer surface apart from the floor 2 of corner floatation stopping device 11 any corner angle and Any corner angle at least 25mm of chock groove 22, to ensure insulation effect.In addition, as shown in figure 8, what the Edge Distance of chock 23 irrigated The outer surface of second expanded material 32 at least 50mm, further function as the effect of insulation.
Heretofore described the first expanded material 31, the second expanded material 32 are polyurethane material, polyurethane material Spray coating foaming is a kind of heat preserving mode for comparing and praising highly, and is a kind of compare by the application in terms of a variety of tests and low-temperature insulation Reliable and durable heat preserving method.In addition, polyurethane foam material has in itself, thermal conductivity factor is low, rate of closed hole is high and mechanical performance Some good physical features, and elastic properties of materials is preferable, the deformation of cargo tank caused by can adapt to temperature difference.
The material of heretofore described protective coating 61,62 is polyalcohol or isocyanide amine ester material.
In summary, the installation method of a kind of A types independent liquid cargo tank corner of the invention floatation stopping device insulation, can facilitate A Insulating mounting at the floatation stopping device of type independent liquid cargo tank corner.So the present invention effectively overcomes some realities of the prior art Border problem is so as to having very high value and using meaning.
The principle and its effect of the above-mentioned embodiment only illustrative present invention, not for the limitation present invention.This hair It is bright to also have many aspects to be improved on the premise of without prejudice to overall thought, all can be for those skilled in the art Without prejudice under the spirit and scope of the present invention, modifications and changes can be carried out to above-described embodiment.Therefore, art such as Middle tool usually intellectual without departing from disclosed spirit and all equivalent modifications for being completed under technological thought or Change, should be covered by the claim of the present invention.

Claims (9)

  1. A kind of 1. installation method of A types independent liquid cargo tank corner floatation stopping device insulation, it is characterised in that the corner floatation stopping device (11) corner location that the cargo tank (1) top surface intersects with side is arranged on, the corner floatation stopping device (11) includes passing through The installation panel (21) that multiple floors (2) are connected with cargo tank (1), the installation panel (21) is angularly disposed, the mounting surface Plate (21) top surface is provided with chock groove (22), is provided with chock (23) in the chock groove (22), the installation method of the insulation includes Following steps:
    First, after cargo tank (1) completes, outer surface and corner floatation stopping device (11) to cargo tank (1) are polished Derusting;
    2nd, the cargo tank outer surface after polishing and corner floatation stopping device (11) rust prevention by applying liquid material priming paint, treat that anti-corrosive primer solidifies Removing surface is carried out to cargo tank outer surface afterwards, removes water, oil, dust and other pollutants;
    3rd, in the outer surface of cargo tank (1) and corner floatation stopping device (11) spraying corrosion resistant coating;
    4th, in the expanded material of anticorrosive coat surface spraying first (31) of cargo tank (1), the first expanded material (31) thickness of spraying For 110mm~135mm, after cargo tank (1) has sprayed, to the corner floatation stopping device between installation panel (21) and cargo tank (1) (11) part the first expanded material of spraying (31), the first expanded material (31) cover whole floors (2), treat the first expanded material (31) to the first expanded material (31) surface spraying protective coating (61) after dry tack free;
    The 5th, one die cavity is set on corner floatation stopping device (11), the die cavity includes frame (41) and cover plate (42), on die cavity Provided with perfusing hole, the through hole to match with chock (23) is provided with the cover plate (42), die cavity is arranged on corner floatation stopping device (11) after on, the cover plate (42) of the die cavity is not contacted with chock groove (22), and the edge of die cavity frame (41), which is pasted onto, have been sprayed The first expanded material (31) surface coated, then by perfusing hole to the expanded material of mould intra-bladder instillation second (32);
    6th, after full second expanded material (32) being irrigated in die cavity, one hour is stood, is then stripped die cavity;
    7th, after the die cavity demoulding, to the surface spraying protective coating (62) of the second expanded material (32) of dry perfusion, protection applies After layer (62) solidification, corner floatation stopping device (11) insulating mounting of cargo tank (1) is completed.
  2. 2. a kind of installation method of floatation stopping device insulation in A types independent liquid cargo tank corner according to claim 1, its feature exist In:The first expanded material (31) in step 4 on cargo tank (1) sprays 4~6 thickness for reaching 110mm~135mm.
  3. 3. a kind of installation method of floatation stopping device insulation in A types independent liquid cargo tank corner according to claim 1, its feature exist In:In step 5, before die cavity is arranged on corner floatation stopping device (11), one layer of release sheet is laid in die cavity inner surface.
  4. 4. a kind of installation method of floatation stopping device insulation in A types independent liquid cargo tank corner according to claim 1, its feature exist In:In step 5, after die cavity is arranged on corner floatation stopping device (11), in the through hole and chock of die cavity cover plate (42) (23) packing matcrial between.
  5. 5. a kind of installation method of floatation stopping device insulation in A types independent liquid cargo tank corner according to claim 1, its feature exist In:After the step 6 die cavity demoulding, the second expanded material (32) of perfusion at least 5mm apart from the end face of chock (23).
  6. 6. a kind of installation method of floatation stopping device insulation in A types independent liquid cargo tank corner according to claim 1, its feature exist In:After step 6 terminates, at the angle seam between the first expanded material (31) of spraying and the second expanded material (32) of perfusion Sealant (7) is set.
  7. 7. a kind of installation method of floatation stopping device insulation in A types independent liquid cargo tank corner according to claim 1, its feature exist In:Protective coating (62) thickness in the step 7 is 1mm.
  8. 8. a kind of installation method of floatation stopping device insulation in A types independent liquid cargo tank corner according to claim 1, its feature exist In:First expanded material (31), the second expanded material (32) outer surface apart from corner floatation stopping device (11) floor (2) Any plate face at least 50mm.
  9. 9. a kind of installation method of floatation stopping device insulation in A types independent liquid cargo tank corner according to claim 1, its feature exist In:First expanded material (31), the second expanded material (32) outer surface apart from corner floatation stopping device (11) floor (2) Any corner angle and chock groove (22) any corner angle at least 25mm.
CN201410723703.7A 2014-12-03 2014-12-03 The installation method of A type independent liquid cargo tanks corner floatation stopping device insulation Active CN105711751B (en)

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CN113911265B (en) * 2021-10-15 2024-09-06 沪东中华造船(集团)有限公司 Container ship containment system and B-type independent fuel tank insulation structure thereof

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KR101559402B1 (en) * 2009-03-24 2015-10-13 대우조선해양 주식회사 Restraining equipments for independence type cargo tank and its heat loss reducing method
KR20110138869A (en) * 2010-06-22 2011-12-28 대우조선해양 주식회사 Multi-direction stopper and storage tank support structure having the same
CN102442408B (en) * 2010-10-09 2015-05-13 江南造船(集团)有限责任公司 Vertical supporting structure for cargo tank and inboard bottom of full-refrigerated liquefied gas carrier and mounting method of vertical supporting structure
CN102923250A (en) * 2012-06-27 2013-02-13 武汉一冶钢结构有限责任公司 Installation method of shipborne liquid cargo tank saddle seat reinforced by using laminated wood
CN103832543B (en) * 2014-03-19 2016-02-17 上海江南长兴重工有限责任公司 A kind of flow container mounting structure of large-scale liquefied gas carrier and installation and locating method thereof

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