CN111717336A - Special chemical ship cargo hold insulation structure and laying method - Google Patents
Special chemical ship cargo hold insulation structure and laying method Download PDFInfo
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- CN111717336A CN111717336A CN202010638611.4A CN202010638611A CN111717336A CN 111717336 A CN111717336 A CN 111717336A CN 202010638611 A CN202010638611 A CN 202010638611A CN 111717336 A CN111717336 A CN 111717336A
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- 238000009413 insulation Methods 0.000 title claims abstract description 34
- 239000000126 substance Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000011490 mineral wool Substances 0.000 claims abstract description 94
- 229910052918 calcium silicate Inorganic materials 0.000 claims abstract description 73
- 239000000378 calcium silicate Substances 0.000 claims abstract description 73
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims abstract description 73
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 63
- 239000010935 stainless steel Substances 0.000 claims abstract description 63
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 210000001503 joint Anatomy 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims 4
- 239000000203 mixture Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000000979 retarding effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 62
- 239000007788 liquid Substances 0.000 description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
-
- 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
- B63B3/68—Panellings; Linings, e.g. for insulating purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses an insulation structure of a cargo hold of a special chemical ship and a laying method thereof. A plurality of screw rods arranged in a matrix are respectively and vertically fixed on the outer side surfaces of the corresponding cargo holds, and two layers of calcium silicate plates and two layers of rock wool are respectively fixed on the outer peripheral surfaces of the cargo holds through nuts screwed on the screw rods. The paving method comprises the following steps: 1) welding and fixing the screw rod and positioning and drilling the calcium silicate plate and the stainless steel plate, and 2) respectively installing the calcium silicate plate, the rock wool and the stainless steel plate. The invention has simple structure, reduces the construction difficulty, has obvious effect of retarding heat dissipation, and solves the problems of insulation structure and laying construction of the special chemical ship cargo hold.
Description
Technical Field
The invention relates to an insulation structure for blocking heat dissipation of a cargo hold of a special chemical ship, in particular to a cargo hold insulation structure for blocking heat dissipation of liquid high-temperature chemicals loaded in the cargo hold and a laying method, and belongs to the technical field of ship structures and construction.
Background
With the continuous development of the shipbuilding industry in China, the demand of special chemical ships is gradually increased, the cargo hold of the special chemical ship for transporting liquid chemicals needs constant high temperature to keep the chemicals in a liquid state, and if the temperature of liquid sulfur of a sulfur transport ship is kept at about 140 ℃, the viscosity of the liquid sulfur is lowest, so that the ship transportation is most facilitated. In order to keep the chemicals in the cargo hold in a high temperature liquid state, liquid sulfur is heated by a heating oil pipe arranged in the cargo hold, but the above method cannot be kept working for a long time in view of the operation cost. The adoption of the insulation structure (used for retarding the cooling rate of the liquid high-temperature chemical) and the laying of the insulation structure outside the cargo hold ensure the constant temperature and the minimum cooling of the high-temperature liquid chemical, which is a big problem in the design and construction of special chemical ships.
Disclosure of Invention
The invention aims to provide an insulation structure and a laying method for a special chemical ship cargo hold, which ensure that the cargo hold loaded with high-temperature liquid chemicals keeps the required constant high temperature during navigation.
The invention is realized by the following technical scheme:
the special chemical ship cargo hold insulation structure is characterized in that an insulation layer covers the outer peripheral surface of a cargo hold, the insulation layer comprises two layers of calcium silicate plates and two layers of rock wool, the two layers of calcium silicate plates cover a top plate of the cargo hold, and joint seams of the calcium silicate plates are filled with joint fillers; the two layers of rock wool cover the side plate and the bottom plate of the cargo hold except the top plate of the cargo hold, and the outer sides of the two layers of calcium silicate plates and the two layers of rock wool cover the stainless steel plate respectively; a plurality of screw rods which are arranged in a matrix are respectively and vertically fixed on a corresponding cargo compartment top plate, a cargo compartment side plate and a cargo compartment bottom plate, one end of each screw rod penetrates through two corresponding calcium silicate plates or two corresponding rock wool layers respectively, and stainless steel plates which are respectively covered on the two corresponding calcium silicate plates and the two corresponding rock wool layers are respectively covered on the two corresponding rock wool layers.
The object of the invention is further achieved by the following technical measures.
Furthermore, the screw rod and the nut are both made of stainless steel.
Further, the volume weight of the rock wool is 100kg/m3And the joints of the adjacent rock wool are staggered, and the staggered joints are positioned at 0.45-0.55 of the length or width of the rock wool.
Furthermore, a circle of rock wool horizontal supporting plate is welded on the periphery of the cargo compartment at the position with the vertical distance H =950 mm-1050 mm away from the inner side face of the top plate of the cargo compartment, and the width A1 of the rock wool horizontal supporting plate is = 1.45-1.55 of the thickness A of two layers of rock wool.
Furthermore, a metal gasket is arranged between the two layers of rock wool penetrated by the screw rod, and the thickness of the metal gasket is 0.5 mm.
Furthermore, the thickness of the stainless steel plate on the upper side of the calcium silicate plate is 2.0mm, and the thickness of the stainless steel plate on the outer side of the rock wool is 0.5 mm.
Further, the joint of a top plate of the cargo hold and the hatch vertical plate of the cargo hold is coated with two layers of rock wool, the outer sides of the two layers of rock wool are covered with a stainless steel plate with the thickness of 0.5mm, and the two layers of rock wool and the stainless steel plate are fixed outside the hatch vertical plate through a screw rod respectively fixed on the corresponding hatch vertical plate and the corresponding hatch coaming and a nut screwed on the screw rod; four calcium silicate board layer layers are laminated and supported on the hatch coaming, stainless steel plates with the thickness of 2.0mm are covered on the outermost calcium silicate board, and the four calcium silicate boards and the stainless steel plates are fixed on the hatch coaming through screws respectively fixed on the corresponding hatch coaming and nuts screwed on the screws.
A method for laying an insulation structure of a cargo hold of a special chemical ship comprises the following steps:
1) welding fixation of screw rod and positioning drilling of calcium silicate plate and stainless steel plate
1.1) marking and positioning the screw rods on the corresponding plate surfaces of the cargo compartment sections according to the span of the screw rod arrangement diagram; then respectively welding and positioning the bottoms of the screws on the corresponding plate surfaces according to the sequence of the installation of the calcium silicate plate and the rock wool; protecting the screw thread part of the screw by using a protective sleeve or an adhesive tape after the screw is welded, and preventing sand washing and paint from damaging the screw thread;
1.2) respectively positioning and drilling a calcium silicate board and a stainless steel plate covered outside the calcium silicate board and the rock wool according to the distribution position of each screw on the corresponding board surface; a circle of rock wool horizontal supporting plates are welded on the periphery of the cargo hold with the vertical distance H =950 mm-1050 mm from the inner side face of the top plate of the cargo hold;
2) respectively installing calcium silicate board, rock wool and stainless steel plate
2.1) sequentially sleeving two layers of calcium silicate plates and stainless steel plates with the thickness of 2.0mm which are drilled into the screw rods at the corresponding positions of the top plate of the cargo hold from bottom to top, and sequentially sleeving four layers of calcium silicate plates and stainless steel plates with the thickness of 2.0mm which are drilled into the screw rods at the corresponding positions of the hatch coamings from bottom to top; the adjacent edges of the same layer of calcium silicate plate are abutted against each other, and joints are bonded by using a gap filler; the adjacent edges of the stainless steel plates are abutted against each other, and the stainless steel plates are connected into a whole in a rivet pulling fixed connection mode of adding a lining plate on the lower side of a seam; nuts screwed on the screws are tightly pressed on the stainless steel plate, so that two layers of calcium silicate plates are fixed on a top plate of the cargo hold, and four layers of calcium silicate plates are fixed on the hatch coaming;
2.2) sequentially sleeving a stainless steel plate with the thickness of 0.5mm and two layers of rock wool which are drilled on screws at corresponding positions on the periphery of the cargo hold, screws at corresponding positions on the outer side of the hatch vertical plate and screws at corresponding positions between the bottom plate of the cargo hold and the keel frame from outside to inside; and the screw rod passes through the metal gasket between the two layers of rock wool.
Further, in the step 2.2), the edges of the stainless steel plates with the thickness of 0.5mm are fixedly connected in a rivet-pulling lap joint mode by rivets, and are laid in a rolling plate releasing mode.
Furthermore, at least 20mm of compression is reserved at the butt joint of the adjacent ends of the two rock wool blocks in the length direction and the butt joint of the adjacent edges of the two rock wool blocks in the width direction in the step 2.2), so that the rock wool blocks are tightly connected, and the insulation performance of the rock wool at the periphery and the bottom of the cargo hold is greatly improved.
According to the invention, the top of the cargo hold is coated with two calcium silicate plates, the rest peripheral surface of the cargo hold is coated with two rock wool layers, stainless steel plates are respectively arranged outside the two calcium silicate plates and the two rock wool layers and are fixed through screw nuts, the structure is simple, the manufacturing and the installation are convenient, the construction difficulty is reduced, the heat dissipation retardation effect is obvious, chemicals are kept in a high-temperature liquid state without using a heating oil pipe, the water transportation cost of high-temperature liquid chemicals of a special chemical ship is greatly reduced, and the problems of an insulation structure and the laying construction of the cargo hold of the special chemical ship are solved.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of the structure of the cargo hold of the present invention within a covered hull;
FIG. 2 is an enlarged view of section I of FIG. 1;
FIG. 3 is an enlarged view of section II of FIG. 1;
FIG. 4 is an enlarged view of section III of FIG. 1;
FIG. 5 is a schematic illustration of the splicing of stainless steel plates of 2.0mm thickness according to the present invention;
FIG. 6 is a schematic view showing the overlapping of stainless steel plates of 0.5mm thickness according to the present invention.
Detailed Description
The invention will be further explained with reference to the drawings and the embodiments of the insulation structure and the laying method of the cargo hold of a sulfur transport ship.
As shown in FIGS. 1 to 3, the present embodimentThe outer peripheral surface of the cargo hold is coated with an insulating layer, the insulating layer comprises two layers of calcium silicate plates 1 and two layers of rock wool 2, the two layers of calcium silicate plates 1 cover a cargo hold top plate 101, the thickness of the two layers of calcium silicate plates 1 is 100mm, the size of the two layers of calcium silicate plates is 600mm × 300mm, the calcium silicate plates 1 are good in heat insulation performance, hard in texture and high in strength, the two layers of calcium silicate plates 1 which are overlapped up and down are enough to bear the weight of a plurality of sailors standing on the calcium silicate plates, YG-2 type joint fillers are filled in joints of the calcium silicate plates to improve the insulation performance of the calcium silicate plates 1, the size of the rock wool 2 is 1000mm × 500mm, the thickness of the single-layer rock wool 2 is 100mm, the thickness of the two layers of the rock3The joints of the adjacent rock wool 2 are staggered, and the staggered joints are arranged at the 0.50 position of the length or the width of the rock wool 2, so that the insulation effect of the rock wool 2 is improved.
Two layers of rock wool 2 are covered on the side plate 102 and the bottom plate 103 of the cargo hold except the top plate 101 of the cargo hold, and the outer sides of the two layers of calcium silicate plates 1 and the two layers of rock wool 2 are respectively covered with the stainless steel plate 3. The thickness of the stainless steel plate 3 covered on the two layers of calcium silicate plates 1 is 2.0mm, and the thickness of the stainless steel plate 3 covered outside the two layers of rock wool 2 is 0.5 mm. A plurality of screws 4 arranged in a matrix are respectively and vertically welded and fixed on a corresponding cargo compartment top plate 101, a cargo compartment side plate 102 and a cargo compartment bottom plate 103, wherein the maximum distance of the screw 4 matrix arrangement of the two layers of calcium silicate plates 1 at the top is 2000mm multiplied by 1000mm, and the maximum distance of the screw 4 matrix arrangement outside the cargo compartment side plate 102 and the cargo compartment bottom plate 103 is 320mm multiplied by 320 mm. One end of the screw rod 4 penetrates through the two corresponding layers of calcium silicate plates 1 or the two corresponding layers of rock wool 2 respectively, and the stainless steel plates 3 respectively cover the two layers of calcium silicate plates 1 and the two layers of rock wool 2, the two layers of calcium silicate plates 1 are fixed on the top plate 101 of the cargo compartment through the nuts 5 which are screwed at one end of the screw rod 4 and abut against the stainless steel plates 3, and the two layers of rock wool 2 are respectively fixed on the side plates 102 of the cargo compartment or fixed in the space between the bottom plate 103 of the cargo compartment and the keel frame 104. The screw rod 4 and the nut 5 are both made of stainless steel.
The volume weight of the rock wool 2 is 100kg/m3The joints of the adjacent rock wool 3 are staggered, and the staggered joint positions are 0.50 of the length or the width of the rock wool 2. The structure ensures that the adjacent sides of the two layers of rock wool 3 coated on the cargo hold 100 form a labyrinth structure from inside to outside, and further retards the liquid high-temperature sulfurThe rate of temperature decrease. Be equipped with thickness for 0.5mm metal gasket 21 between two-layer rock wool 2 that screw rod 4 passed, metal gasket 21 plays the effect that prevents that two-layer rock wool 2 from taking place the sideslip of misplacing.
As shown in fig. 2, a circle of rock wool horizontal supporting plate 6 is welded on the side plate 102 of the cargo hold 100 around the position where the vertical distance H =1000mm from the inner side surface of the top plate 101 of the cargo hold, the width a1 of the rock wool horizontal supporting plate 6 =1.5 of the thickness a of two layers of rock wool, in this embodiment, a flat steel with the width of 150mm and the thickness of 4.5mm is adopted to wind the cargo hold 100 for one circle, and the rock wool horizontal supporting plate 6 supports the weight of the rock wool 2 outside the side plate 102 of the cargo hold to prevent the rock wool from falling.
As shown in fig. 4, the joint of the top plate 101 and the hatch vertical plate 105 of the cargo compartment 100 is covered with two layers of rock wool 2, the outer side of the two layers of rock wool 2 is covered with a stainless steel plate 3 with a thickness of 0.5mm, and the two layers of rock wool 2 and the stainless steel plate 3 are fixed outside the hatch vertical plate 105 through a screw rod 4 fixed on the corresponding hatch vertical plate 105 and the corresponding hatch coaming 106 and a nut 5 screwed on the screw rod 4. Four layers of calcium silicate boards 1 are overlapped and supported on the hatch coaming 106. The outmost calcium silicate board 1 is covered with a stainless steel plate 3 with the thickness of 2.0mm, and the four layers of calcium silicate boards 1 and the stainless steel plate 3 are fixed on the hatch coaming 106 through a screw rod 4 fixed on the corresponding hatch coaming 105 and a nut 5 screwed on the screw rod 4.
Two layers of rock wool 2 are respectively coated on the supporting seats at the top and the bottom of the cargo hold 100, so that the insulation effect of the cargo hold 100 is further enhanced.
A method for laying an insulation structure of a cargo hold of a special chemical ship comprises the following steps:
1) welding and fixing of screw 4 and positioning and drilling of calcium silicate plate 1 and stainless steel plate 3
1.1) marking and positioning the screw rods 4 on the corresponding plate surfaces of the sections of the cargo hold 100 according to the span of the screw rod arrangement diagram; and then respectively welding and positioning the bottoms of the screws 4 on the corresponding plate surfaces according to the sequence of the installation of the calcium silicate plate 1 and the rock wool 2. After the screw rod 4 is welded, the thread part of the screw rod is protected by a protective sleeve or an adhesive tape, and the thread is prevented from being damaged by sand washing and paint.
1.2) respectively positioning and drilling the calcium silicate board 1 and the stainless steel plate 3 covering the calcium silicate board 1 and the rock wool 2 according to the distribution position of each screw rod 4 on the corresponding board surface. And a circle of rock wool horizontal supporting plates 6 are welded on the periphery of the cargo hold 100 which is vertically away from the inner side surface of the cargo hold top plate 101 by H =1000 mm.
2) Respectively installing a calcium silicate plate 1, rock wool 2 and a stainless steel plate 3
2.1) sequentially sleeving two layers of calcium silicate plates 1 and stainless steel plates 3 with the thickness of 2.0mm which are drilled into the screw rods 4 at the corresponding positions of the top plate 101 of the cargo hold from bottom to top, and sequentially sleeving four layers of calcium silicate plates 1 and stainless steel plates 3 with the thickness of 2.0mm which are drilled into the screw rods 4 at the corresponding positions of the hatch coamings 106 from bottom to top. The adjacent edges of the same calcium silicate board 1 are abutted against each other and the seams are bonded using a type YG-2 caulk. As shown in FIG. 5, the adjacent edges of the stainless steel plates 3 abut against each other, and the stainless steel plates 3 are connected into a whole by rivet fastening and splicing with rivets 32 of lining plates 31 added on the lower sides of the seams. Nuts 5 screwed on the screws 4 are pressed against the stainless steel plate 3, thereby fixing the two-layered calcium silicate board 1 to the cargo compartment ceiling 101, and further fixing the four-layered calcium silicate board 1 to the hatch coaming 106.
2.2) sequentially sleeving a stainless steel plate 3 with the thickness of 0.5mm and two layers of rock wool 2 which are drilled on the screw rods 4 at the corresponding positions around the cargo hold 100 from outside to inside, or on the screw rods 4 at the corresponding positions outside the hatch vertical plate 105, or on the screw rods 4 at the corresponding positions between the cargo hold bottom plate 103 and the keel frame 104. And the screw rod passes through the metal gasket 21 between the two layers of rock wool 2.
As shown in fig. 6, in step 2.2), the edges of the stainless steel plates 3 with the thickness of 0.5mm are fixedly connected by riveting with rivets 32, and are laid by releasing the rolled plates.
At least 20mm of compression is reserved at the butt joint of the adjacent ends of the two rock wool 2 in the length direction in the step 2.2) and the butt joint of the adjacent edges of the two rock wool 2 in the width direction, namely, the size of the adjacent edges of the two rock wool 2 with the length of 1000mm is compressed to 980mm after the two rock wool 2 are lapped, and the width direction is similar, and the size of 500mm is compressed to 480 mm. The rock wool blocks are tightly connected, so that the insulation structure of the invention is complete and tight, and the insulation performance of the rock wool 2 at the periphery and the bottom of the cargo hold 100 is greatly improved.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a special type chemicals ship cargo hold insulation system which characterized in that: the outer peripheral surface of the cargo hold is coated with an insulating layer, and the insulating layer comprises two layers of calcium silicate plates and two layers of rock wool; two layers of calcium silicate plates cover the top plate of the cargo hold, joint seams of the calcium silicate plates are filled with joint mixture, two layers of rock wool cover the side plate and the bottom plate of the cargo hold except the top plate of the cargo hold, and the outer sides of the two layers of calcium silicate plates and the two layers of rock wool cover the stainless steel plate respectively; a plurality of screw rods which are arranged in a matrix are respectively and vertically fixed on a corresponding cargo compartment top plate, a cargo compartment side plate and a cargo compartment bottom plate, one end of each screw rod penetrates through two corresponding calcium silicate plates or two corresponding rock wool layers respectively, and stainless steel plates which are respectively covered on the two corresponding calcium silicate plates and the two corresponding rock wool layers are respectively covered on the two corresponding rock wool layers.
2. A special chemical ship cargo tank insulation structure as defined in claim 1, wherein: the screw and the nut are both made of stainless steel.
3. A special chemical ship cargo tank insulation structure as defined in claim 1, wherein: the volume weight of the rock wool is 100kg/m3And the joints of the adjacent rock wool are staggered, and the staggered joints are positioned at 0.45-0.55 of the length or width of the rock wool.
4. A special chemical ship cargo tank insulation structure as defined in claim 1, wherein: a circle of rock wool horizontal supporting plates are welded on the periphery of the cargo compartment at the position with the vertical distance H =950 mm-1050 mm from the inner side face of the top plate of the cargo compartment, and the width A1 of each rock wool horizontal supporting plate is = 1.45-1.55 of the thickness A of two layers of rock wool.
5. A special chemical ship cargo tank insulation structure as defined in claim 1, wherein: and a metal gasket is arranged between the two layers of rock wool penetrated by the screw rod, and the thickness of the metal gasket is 0.5 mm.
6. A special chemical ship cargo tank insulation structure as defined in claim 1, wherein: the thickness of the stainless steel plate on the upper side of the calcium silicate plate is 2.0mm, and the thickness of the stainless steel plate on the outer side of the rock wool is 0.5 mm.
7. A special chemical ship cargo tank insulation structure as defined in claim 1, wherein: two layers of rock wool are coated at the joint of a top plate and a hatch vertical plate of a cargo hold, stainless steel plates with the thickness of 0.5mm are coated on the outer sides of the two layers of rock wool, and the two layers of rock wool and the stainless steel plates are fixed outside the hatch vertical plate through screw rods respectively fixed on the corresponding hatch vertical plate and the corresponding hatch coaming and nuts screwed on the screw rods; four calcium silicate board layer layers are laminated and supported on the hatch coaming, stainless steel plates with the thickness of 2.0mm are covered on the outermost calcium silicate board, and the four calcium silicate boards and the stainless steel plates are fixed on the hatch coaming through screws respectively fixed on the corresponding hatch coaming and nuts screwed on the screws.
8. A method of laying an insulation structure of a cargo tank of a special chemical ship as claimed in any one of claims 1 to 7, wherein: the method comprises the following steps:
1) welding fixation of screw rod and positioning drilling of calcium silicate plate and stainless steel plate
1.1) marking and positioning the screw rods on the corresponding plate surfaces of the cargo compartment sections according to the span of the screw rod arrangement diagram; then respectively welding and positioning the bottoms of the screws on the corresponding plate surfaces according to the sequence of the installation of the calcium silicate plate and the rock wool; protecting the screw thread part of the screw by using a protective sleeve or an adhesive tape after the screw is welded, and preventing sand washing and paint from damaging the screw thread;
1.2) respectively positioning and drilling a calcium silicate plate and a stainless steel plate covered outside the calcium silicate plate and rock wool according to the distribution position of each screw on the corresponding plate surface, and welding a circle of rock wool horizontal supporting plate around the cargo hold with the vertical distance H =950 mm-1050 mm from the inner side surface of the top plate of the cargo hold;
2) respectively installing calcium silicate board, rock wool and stainless steel plate
2.1) sequentially sleeving two layers of calcium silicate plates and stainless steel plates with the thickness of 2.0mm which are drilled into the screw rods at the corresponding positions of the top plate of the cargo hold from bottom to top, and sequentially sleeving four layers of calcium silicate plates and stainless steel plates with the thickness of 2.0mm which are drilled into the screw rods at the corresponding positions of the hatch coamings from bottom to top; the adjacent edges of the same layer of calcium silicate plate are abutted against each other, and joints are bonded by using a gap filler; the adjacent edges of the stainless steel plates are abutted against each other, and the stainless steel plates are connected into a whole in a rivet pulling fixed connection mode of adding a lining plate on the lower side of a seam; nuts screwed on the screws are tightly pressed on the stainless steel plate, so that two layers of calcium silicate plates are fixed on a top plate of the cargo hold, and four layers of calcium silicate plates are fixed on the hatch coaming;
2.2) sequentially sleeving a stainless steel plate with the thickness of 0.5mm and two layers of rock wool which are drilled on screws at corresponding positions on the periphery of the cargo hold, screws at corresponding positions on the outer side of the hatch vertical plate and screws at corresponding positions between the bottom plate of the cargo hold and the keel frame from outside to inside; and the screw rod passes through the metal gasket between the two layers of rock wool.
9. A method of installing a cargo tank insulation structure for a specialty chemical ship as claimed in claim 8 wherein: wherein, the edges of the stainless steel plates with the thickness of 0.5mm in the step 2.2) are fixedly connected by riveting rivets and laying by releasing the rolled plate.
10. A method of installing a cargo tank insulation structure for a specialty chemical ship as claimed in claim 8 wherein: at least 20mm of compression is reserved at the butt joint of the adjacent ends of the two rock wools in the length direction and the butt joint of the adjacent edges of the two rock wools in the width direction in the step 2.2), so that the rock wools are tightly connected, and the insulation performance of the rock wools around the cargo hold and at the bottom of the cargo hold is greatly improved.
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| CN202010638611.4A CN111717336A (en) | 2020-07-06 | 2020-07-06 | Special chemical ship cargo hold insulation structure and laying method |
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| CN202010638611.4A CN111717336A (en) | 2020-07-06 | 2020-07-06 | Special chemical ship cargo hold insulation structure and laying method |
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