WO2018113406A1 - 液化天然气船b型液货舱的绝热系统及其构造方法 - Google Patents

液化天然气船b型液货舱的绝热系统及其构造方法 Download PDF

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Publication number
WO2018113406A1
WO2018113406A1 PCT/CN2017/107378 CN2017107378W WO2018113406A1 WO 2018113406 A1 WO2018113406 A1 WO 2018113406A1 CN 2017107378 W CN2017107378 W CN 2017107378W WO 2018113406 A1 WO2018113406 A1 WO 2018113406A1
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Prior art keywords
layer
heat insulating
screen wall
heat insulation
plate
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Ceased
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PCT/CN2017/107378
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English (en)
French (fr)
Inventor
张洪斌
孙小伟
蔡志祥
靳蔷薇
韦越
赵小敏
位元元
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Shanghai Jiao Tong University
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Shanghai Jiao Tong University
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Publication of WO2018113406A1 publication Critical patent/WO2018113406A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/04—Inorganic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/12—Ships

Definitions

  • the invention belongs to the technical field of liquefied natural gas ships, and particularly relates to an insulation system for a type B liquid cargo tank of a liquefied natural gas ship and a construction method thereof.
  • Liquefied natural gas is a cryogenic liquid that is condensed by cooling gaseous natural gas at atmospheric pressure to -163 ° C. Its main component is methane. LNG is colorless, odorless, non-toxic and non-corrosive. It emits less nitrogen oxides and sulfur dioxide and is recognized as a clean energy source. Its demand is increasing year by year. The volume of LNG is about 1/625 of the same volume of gaseous, and the weight is only about 45% of the same volume of water. Natural gas liquefaction can greatly save storage and transportation space and costs. LNG ship is a special transport ship for LNG. It is the most technically difficult ship among all cargo ships in the world.
  • the cargo tank at the core of the LNG ship is a special construction independent of the hull.
  • the independent liquid cargo containment system is a self-supported liquid cargo containment system.
  • the B-type independent cargo tank has the advantages of large space, small daily evaporation of LNG, convenient installation and maintenance.
  • the enclosure system must select not only the thermal insulation material with excellent performance. Appropriate ply design techniques are also needed to meet shipping safety and reduce cargo losses.
  • the inflow of heat will cause LNG to evaporate on the one hand, causing loss of LNG; on the other hand, the evaporation of LNG will increase the pressure in the cargo tank, when it exceeds the pressure range of the cargo tank, Damage to the cargo hold, endangering the safety of the LNG ship and navigation.
  • LNG ship liquid cargo containment system must use high-performance thermal insulation materials to control the daily evaporation rate of LNG, and minimize the evaporation of LNG during transportation.
  • the thermal expansion and contraction caused by the temperature change ensures that the hull structure is not damaged by the storage tank and low temperature.
  • the temperature of the cargo tank will change between ultra-low temperature and room temperature. Due to the different thermal expansion coefficients of the thermal insulation material and the cabin metal, the thermal insulation structure will be broken due to the difference in expansion and thermal stress, which often becomes an adiabatic structure. An important cause of damage. Therefore, how to solve the damage caused by the difference in thermal expansion coefficient of materials in the adiabatic system is one of the problems to be solved.
  • Cipheral Patent Application Publication No. CN104802937A discloses a system for constructing an independent liquid cargo tank insulation layer for a liquefied natural gas ship and a method for constructing the same.
  • a polyurethane foam (PUR) insulation board is directly bonded to a stainless steel material through an adhesive.
  • Secondary screen wall surface is directly bonded to a stainless steel material through an adhesive.
  • the thermal expansion coefficient of the secondary screen stainless steel metal is about 16 ⁇ 10 -6 K -1 (for example, 304 stainless steel at -50 ° C) and it does not change much with temperature, and the thermal expansion coefficient of PUR is shown in Figure 1.
  • the coefficients of thermal expansion at 165 ° C, -150 ° C, -100 ° C, -50 ° C, 0 ° C and 25 ° C are 43 ⁇ 10 -6 K -1 , 51 ⁇ 10 -6 K -1 , 53 ⁇ 10 -6 K , respectively . -1 , 62 ⁇ 10 -6 K -1 , 125 ⁇ 10 -6 K -1 and 195 ⁇ 10 -6 K -1
  • the average thermal expansion coefficient in the temperature range of -165 ° C ⁇ 25 ° C is 76 ⁇ 10 - 6 K -1 . It can be seen that the thermal expansion coefficient of PUR and metal is very different. When the temperature changes, the insulation plate may fall off and the insulation system may be damaged.
  • the thermal expansion coefficient of PUR varies greatly with temperature. Therefore, when the ultra-low temperature and the normal temperature alternate, the material may be cracked due to excessive thermal stress, thereby damaging the heat insulating plate, and the thermal insulation performance is greatly deteriorated.
  • the general PUR low temperature resistance is poor
  • the national standard GB50264 "Industrial Equipment and Pipeline Thermal Insulation Engineering Design Specification" will limit the recommended temperature of PUR to -65 ⁇ 80 °C.
  • the ambient temperature of PUR is between -163 ° C and room temperature or higher, the temperature difference is very large, and the thermal stress of PUR is too large. When the temperature changes or the ship shakes, PUR is easy to appear due to thermal expansion and contraction.
  • the present invention solves the problem that the thermal insulation layer may be damaged due to the difference in thermal expansion coefficient of the material and the thermal stress of the PUR caused by the large temperature difference between the inside and outside of the thermal insulation plate.
  • an insulation system for a cargo tank of an LNG ship comprising a main screen wall, a heat insulation layer and a protective layer, the heat insulation layer being mounted on the main screen wall,
  • the protective layer covers the outer surface of the heat insulating layer.
  • the heat insulating layer includes a secondary screen wall, a heat insulating plate and a water blocking layer in order from the inside to the outside.
  • the secondary screen wall is mounted on the main screen wall, the main screen wall is made of 9% nickel steel, the secondary screen wall is made of stainless steel, and the thermal expansion coefficient of the stainless steel is 16 ⁇ 10 -6 K - 1 or so.
  • the passage formed by the gap is in communication such that when a leak occurs in the main screen wall, the leaked liquefied natural gas can flow into the collection container through the interstitial space.
  • the gap is filled with an inert gas, preferably nitrogen or argon.
  • the heat insulating plate is sandwiched between the secondary screen wall and the water blocking layer, and the protective layer covers the outer surface of the water blocking layer.
  • the heat insulating plate comprises a foam glass plate and a urethane foam plate bonded to a surface of the secondary screen wall by an adhesive, the urethane foam board being bonded by the adhesive
  • the surface of the foam glass plate may be a single layer, two or more layers are stacked, and the layers are bonded by an adhesive.
  • the urethane foam board may also be a single layer, two or more layers are superposed, and when it is a combination of two or more layers, a water blocking layer is preferably interposed between the layers.
  • the foam glass sheet and the polyurethane foam sheet have a total thickness equivalent to, for example, 200 mm.
  • the protective layer is a glass fiber reinforced epoxy resin coating adhered to the surface of the outermost water blocking layer by an adhesive to protect the entire heat insulating layer, and the thickness of the protective layer is preferably 1 mm. about.
  • the water blocking layer is preferably a three-in-one film of glass cloth sandwiched aluminum foil, which functions to increase airtightness and weaken water vapor permeation.
  • the heat insulating layer is composed of a plurality of smaller heat insulating layer plates, and it is difficult to integrally and completely cover the main screen wall due to the heat insulating layer having a multilayer structure.
  • the adjacent heat insulating layer plates are fixedly filled with the filling heat insulating material by the adhesive to ensure the heat insulating performance of the heat insulating system.
  • the filled heat insulating material is preferably a glass wool soft heat insulating material.
  • a construction method of an insulation system for a cargo tank of the above LNG ship comprising the steps of:
  • a long bolt for fixing the heat insulating layer is welded on the main screen wall;
  • the secondary screen wall with the bolt hole corresponding to the long bolt position is mounted on the main screen wall;
  • a foam glass plate also having a bolt hole is adhered to the secondary screen wall, and then a polyurethane foam plate also having a bolt hole is adhered to the surface of the foam glass plate to form a foam glass plate.
  • the composite layer of the foam glass plate/polyurethane foam board is fixed on the secondary screen wall by a sealing gasket and a nut matched with the long bolt;
  • the water blocking layer is adhered to the outer surface of the polyurethane foam board
  • a protective layer is covered on the upper surface of the water blocking layer.
  • a water blocking layer is preferably interposed between the layers.
  • the present invention has at least the following beneficial effects:
  • the foam glass is installed between the polyurethane foam and the secondary wall of the metal, and the temperature coefficient of the insulation system changes due to the linear expansion coefficient of the foam glass and the metal. At the time, there is no phenomenon that the insulation layer is damaged due to the difference in expansion.
  • the thermal expansion coefficient of foam glass (CG) is shown in Figure 2. It is 3.7 ⁇ 10 -6 K -1 , 4.6 ⁇ at -165 ° C, -150 ° C, -100 ° C, -50 ° C, 0 ° C and 20 ° C, respectively. 10 -6 K -1 , 6.35 ⁇ 10 -6 K -1 , 6.8 ⁇ 10 -6 K -1 , 8.72 ⁇ 10 -6 K -1 and 8.0 ⁇ 10 -6 K -1 , at -165 ° C ⁇ 25
  • the average thermal expansion coefficient in the temperature range of °C is 6.6 ⁇ 10 -6 K -1 , and the thermal expansion coefficient changes little with temperature and is small compared with the thermal expansion coefficient of metal.
  • the ambient temperature is not significantly changed due to the difference in thermal expansion coefficient and the linear expansion coefficient of the metal material of the cargo tank, although the difference between the ultra-low temperature and the room temperature is large. Small, thus avoiding the phenomenon of falling off and structural damage easily caused by the direct use of PUR as a thermal insulation layer adjacent to the bulkhead. Therefore, the use of the composite thermal insulation layer with foamed glass as the inner layer and PUR as the outer layer is advantageous for preventing deterioration of the thermal insulation performance of the thermal insulation material, and can greatly increase the long-term service life of the thermal insulation layer.
  • the new LNG ship liquid cargo tank insulation system installs the foam glass to a low temperature close to -163 ° C, and installs the polyurethane foam to near normal temperature.
  • the temperature of the foamed glass sheets in the system of the present invention was measured to be about -163 ° C and about -80 ° C, respectively, while the temperatures on both sides of the polyurethane foam sheet were about -80 ° C and room temperature, respectively.
  • the ambient temperature difference of the polyurethane foam board is reduced from about 200 ° C to about 100 ° C, which greatly reduces the thermal stress change caused by the temperature difference change, making the adiabatic system more stable.
  • the safe use temperature range of the foam glass is large, and the coefficient of linear expansion changes little with temperature, and does not crack at low temperatures, and does not cause cold and brittle points.
  • the method of installing the polyurethane foam in the outer layer is adopted to improve the heat insulation performance and achieve the cold preservation effect, and the advantages of the two materials are fully exerted.
  • Figure 1 is a graph showing the coefficient of thermal expansion of a polyurethane foam as a function of temperature
  • Figure 2 is a graph showing the coefficient of thermal expansion of foam glass as a function of temperature
  • FIG. 3 is a schematic illustration of a thermal insulation system in accordance with a preferred embodiment of the present invention.
  • FIG. 4 is a perspective exploded view of a thermal insulation system in accordance with a preferred embodiment of the present invention.
  • each reference numeral respectively represents: 1-main screen wall; 2-long bolt; 3-stage screen wall; 4-foam glass board; 5-polyurethane foam board; 6-water blocking layer; 7-protective layer; Nuts and ferrules.
  • the insulation system of the LNG ship cargo tank comprises a main screen wall 1, a heat insulating layer and a protective layer 7, and the heat insulating layer comprises a secondary screen wall 3, a heat insulating plate and Water blocking layer 6.
  • the heat insulating plate is sandwiched between the secondary screen wall 3 and the protective layer 7, and the protective layer 7 covers the outer surface of the water blocking layer 4.
  • the main screen wall 1 is made of 9% nickel steel
  • the secondary screen wall 3 is made of stainless steel
  • the secondary screen wall 3 is mounted on the main screen wall 1.
  • the gap between the secondary screen wall 3 and the main screen wall 1 is 5-10 mm, the gap is filled with an inert gas, and the inert gas is preferably nitrogen.
  • the stainless steel has a coefficient of thermal expansion of about 16 ⁇ 10 -6 K -1 .
  • the heat insulating plate includes a foamed glass plate 4 and a urethane foamed plate 5 which is bonded to the surface of the secondary screen wall 3 by an adhesive which is bonded to the surface of the foamed glass plate 4 by an adhesive.
  • the single layer thickness of the foam glass plate 4 and the urethane foam plate 5 is 200 mm.
  • the protective layer 7 is a glass fiber reinforced epoxy resin coating adhered to the surface of the outermost water blocking layer 4 by an adhesive to a thickness of 1 mm.
  • the water blocking layer 4 is a three-in-one film of glass cloth sandwiched aluminum foil.
  • the long bolt 2 for fixing the heat insulating layer is welded on the main screen wall 1;
  • the secondary screen wall 3 is mounted on the main screen wall 1;
  • a two-layer bulk polyurethane foam board 5 bonded with a water blocking layer 6 in the middle is bonded to the surface of the foam glass board 4, and fixed by a nut and a sealing gasket 8;
  • the fifth step bonding the water blocking layer 6 on the outer surface of the polyurethane foam board 5;
  • the glass wool soft insulation material is filled into the space between the adjacent heat insulation layer plates, and is fixed by an adhesive
  • a protective layer 7 is covered on the upper surface of the water blocking layer 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

一种液化天然气船液货舱的绝热系统及其构造方法，该绝热系统包括主屏壁（1）、绝热层和保护层（7），绝热层安装在主屏壁（1）上，保护层（7）覆盖在绝热层的外表面。绝热层由内向外依次包括次屏壁（3）、绝热板及阻水层（6）。绝热板包括泡沫玻璃板（4）和聚氨酯泡沫板（5），泡沫玻璃板（4）通过粘合剂粘接在次屏壁（3）的表面，聚氨酯泡沫板（5）通过粘合剂粘接在泡沫玻璃板（4）的表面。将泡沫玻璃（4）安装到聚氨酯泡沫板（5）和金属的次屏壁（3）之间，避免了在绝热系统温度变化时，出现因保温材料膨胀系数差异而导致绝热层损坏的现象，同时减小了聚氨酯泡沫由温差变化导致的热应力变化，使得绝热系统更加安全稳定。

Description

液化天然气船B型液货舱的绝热系统及其构造方法
技术领域
本发明属于液化天然气船技术领域，特别涉及一种液化天然气船B型液货舱的绝热系统及其构造方法。
背景技术
液化天然气（LNG）是通过将常压下气态的天然气冷却至-163℃，凝结而成的低温液体，其主要成分为甲烷。LNG无色、无味、无毒且无腐蚀性，燃烧时氮氧化物和二氧化硫的排出量较少，因此被公认为清洁能源，其需求逐年增大。LNG的体积约为同量气态体积的1/625，重量仅为同体积水的45%左右。天然气液化后可以大大节约储运空间和成本。LNG船为液化天然气的专用运输船舶，是目前世界范围内所有货运船中技术难度最高的船舶，是高技术、高难度、高附加值的"三高"产品。LNG船的核心部分液货舱是独立于船体的特殊构造。独立型液货围护系统是自身支持的液货围护系统，其中B型独立液货舱具有空间大、LNG日蒸发量小、方便安装与维修等优点。
由于LNG设备在运行过程中温度交变范围很大（温差可达200℃左右），深冷和常温交变容易造成LNG设备绝热结构的损坏，因此其围护系统不仅要选择性能优良的绝热材料，还需采用合适的铺层设计技术，以满足航运安全和减少货物损失。对于航行中LNG船的液货舱，热量的流入一方面会使LNG蒸发，造成LNG的损失；另一方面，LNG的蒸发会使液货舱内的压力升高，当超过货舱承压范围时，会导致货舱的损坏，危及LNG船及航行安全。因此，为保证LNG在储运过程中的安全性和经济性，LNG船液货围护系统须采用高性能的绝热材料以控制LNG日蒸发率，最大限度地减少运输过程中LNG的蒸发，以及由于温度变化而引起的热胀冷缩，保证船体结构不受储罐及低温的损害。此外，在装卸货过程中，液货舱温度会在超低温和室温之间变化，由于绝热材料与舱体金属热膨胀系数不同，绝热结构会因膨胀差异和热应力过大而破裂，这经常成为绝热结构损坏的重要原因。因此，如何解决绝热系统中材料热膨胀系数差异引起的损坏问题是目前亟待解决的问题之一。
公开号为CN104802937A的中国专利申请公开了一种液化天然气船独立液货舱绝热层系统及其构建方法，其绝热系统中是将聚氨酯泡沫（PUR）绝热板通过粘合剂直接粘接在不锈钢材质的次屏壁板表面。次屏壁不锈钢金属的热膨胀系数在16×10-6K-1左右（以304不锈钢在-50°C为例）且随温度变化不大，而PUR的热膨胀系数如图1所示，在-165℃、-150℃、-100℃、-50℃、0℃和25℃时的热膨胀系数分别为43×10-6K-1、51×10-6K-1、53×10-6K-1、62×10-6K-1、125×10-6K-1和195×10-6K-1，其在-165℃~25℃温度范围内的平均热膨胀系数为76×10-6K-1。可见，PUR与金属的热膨胀系数差异很大，在温度变化时可能会发生绝热板的脱落，损坏绝热系统的现象。并且，PUR的热膨胀系数随温度变化大，因此在超低温和常温交变时，材料因所受热应力过大而可能会产生裂纹，从而损坏绝热板，使保温性能大大劣化。此外，一般的PUR耐低温性较差，国家标准GB50264《工业设备及管道绝热工程设计规范》中将PUR推荐使用温度限定为-65~80℃。上述结构中PUR所处环境温度在-163℃到室温或者更高温度之间，温差很大，会造成PUR热应力过大，在温度变化或者船舶晃动时，PUR容易因热胀冷缩而出现裂纹，这将大大减弱其绝热性能。而上述专利述及的结构并没有考虑到绝热板热应力较大可能导致的PUR损坏的问题，因此需要对上述绝热层结构进行改进。GB50264《工业设备及管道绝热工程设计规范》推荐的方法是在绝热结构中设置伸缩缝，伸缩缝填充物采用玻璃纤维毡，并使用热固性树脂在四周各个方向上牢固粘结。但是此方法无法解决PUR热应力过大和PUR工作温度范围窄的问题，因此也需要对上述方法进行改进。
发明内容
有鉴于现有技术的上述缺陷，本发明所要解决的是LNG船绝热系统中存在的因材料热膨胀系数差异可能导致的绝热层损坏问题和绝热板内外温差较大引起的PUR热应力过大的问题，提供了一种用于LNG船液货舱的绝热系统及其构造方法。
根据本发明的第一个方面，本发明提供了一种LNG船液货舱的绝热系统，所述绝热系统包括主屏壁、绝热层和保护层，所述绝热层安装在所述主屏壁上，所述保护层覆盖在所述绝热层的外表面。其中，所述绝热层由内向外依次包括次屏壁、绝热板及阻水层。
优选地，所述次屏壁安装在所述主屏壁上，所述主屏壁为9%镍钢材质，所述次屏壁为不锈钢材质，所述不锈钢的热膨胀系数在16×10-6K-1左右。优选地，所述次屏壁与所述主屏壁之间具有间隙，所述间隙的距离优选为5~10mm。所述间隙形成的通道为连通的，这样当主屏壁发生泄漏时，泄漏的液化天然气可以通过间隙空间流到收集容器里。所述间隙内充有惰性气体，所述惰性气体优选为氮气或氩气。
优选地，所述绝热板夹装在所述次屏壁和所述阻水层之间，所述保护层覆盖在所述阻水层的外表面。
优选地，所述绝热板包括泡沫玻璃板和聚氨酯泡沫板，所述泡沫玻璃板通过粘合剂粘接在所述次屏壁的表面，所述聚氨酯泡沫板通过粘合剂粘接在所述泡沫玻璃板的表面。优选地，所述泡沫玻璃板可为单层，两层或两层以上叠加而成，各层之间通过粘合剂粘接。所述聚氨酯泡沫板亦可为单层，两层或两层以上叠加而成，当其为两层或两层以上叠加而成时，各层之间优选地还夹装有阻水层。所述泡沫玻璃板和所述聚氨酯泡沫板的总厚度相当，例如均为200mm。
优选地，所述保护层为玻璃纤维增强的环氧树脂涂层，通过粘合剂粘接在最外层的阻水层的表面，以保护整个绝热层，所述保护层的厚度优选在1mm左右。所述阻水层优选为玻璃布夹铝箔三合一薄膜，作用是增加气密性，减弱水蒸气渗透。
优选地，所述绝热层由多个较小的绝热层板块组成，并且由于具有多层结构的绝热层很难整体地、完整地覆盖所述主屏壁。这种情况下，各相邻的绝热层板块之间通过粘合剂固定填充有填充绝热材料，以保证绝热系统的隔热性能。所述填充绝热材料优选为玻璃棉类软性绝热材料。
根据本发明的第二个方面，本发明提供了一种上述LNG船液货舱的绝热系统的构造方法，所述构造方法包括如下步骤：
第一步，在主屏壁上焊接用于固定绝热层的长螺栓；
第二步，将对应于所述长螺栓位置而开有螺栓孔的次屏壁安装到所述主屏壁上；
第三步，将同样开有螺栓孔的泡沫玻璃板粘接于所述次屏壁上，然后将同样开有螺栓孔的聚氨酯泡沫板粘接于所述泡沫玻璃板的表面，形成泡沫玻璃板/聚氨酯泡沫板的复合层；或直接将已粘附好的开有螺栓孔的泡沫玻璃板/聚氨酯泡沫板的复合层粘接于所述次屏壁上，所述泡沫玻璃板一面朝向所述次屏壁；
第四步，将所述泡沫玻璃板/聚氨酯泡沫板的复合层通过与所述长螺栓配合的密封垫圈及螺母固定于所述次屏壁上；
第五步，在所述聚氨酯泡沫板的外表面粘接阻水层；
第六步，将填充绝热材料填充进相邻的绝热层板块之间的空间，并用粘合剂固定所述填充绝热材料；
第七步，在所述阻水层的上表面覆盖一层保护层。
优选地，在第三步中，当所述聚氨酯泡沫板由两层或两层以上叠加而成时，各层之间优选地夹装有阻水层。
与现有的LNG船的绝热系统相比，本发明至少具有如下的有益效果：
1、本发明提供的LNG船液货舱绝热系统及其构造方法，将泡沫玻璃安装到聚氨酯泡沫和金属的次屏壁之间，由于泡沫玻璃与金属的线膨胀系数接近，因而在绝热系统温度变化时，不会出现因膨胀差异导致绝热层损坏的现象。
泡沫玻璃（CG）的热膨胀系数如图2所示，在-165℃、-150℃、-100℃、-50℃、0℃和20℃时分别为3.7×10-6K-1、4.6×10-6K-1、6.35×10-6K-1、6.8×10-6K-1、8.72×10-6K-1和8.0×10-6K-1，其在-165℃~25℃温度范围内的平均热膨胀系数为6.6×10-6K-1，热膨胀系数随温度变化很小，且与金属的热膨胀系数相差小。因此，当泡沫玻璃作为邻近金属舱壁的绝热保温材料时，所处环境温度尽管在超低温和室温交变相差大时，由于本身的热膨胀系数变化不大、与液货舱金属材料的线膨胀系数差异小，从而会避免出现直接采用PUR作为舱壁邻近绝热层时易产生的脱落和结构损坏现象。因此，采用以发泡玻璃作为内层、PUR作为外层的复合绝热层，有利于防止保温材料绝热性能的劣化，可大大增加绝热层的长期服役寿命。
2、本发明提供的新型LNG船液货舱绝热系统将泡沫玻璃安装到接近-163℃的低温处，将聚氨酯泡沫安装到接近常温处。经测量，本发明的系统中泡沫玻璃板两边的温度分别为约-163℃和约-80℃，而聚氨酯泡沫板两边的温度分别为约-80℃和室温。聚氨酯泡沫板所处环境温差从约200℃减小到约100℃，极大减小了由温差变化导致的热应力变化，使得绝热系统更加稳定。并且泡沫玻璃安全使用温度范围大，线膨胀系数随温度变化很小，在低温下不会开裂，不会引起冷脆点。针对泡沫玻璃绝热性差的问题，采用在外层安装聚氨酯泡沫的方法来提高绝热性能，达到保冷效果，充分发挥了两种材料的优点。
附图说明
图1是聚氨酯泡沫的热膨胀系数随温度变化图；
图2是泡沫玻璃的热膨胀系数随温度变化图；
图3是本发明一个较佳实施例的绝热系统的示意图；
图4是本发明一个较佳实施例的绝热系统的立体分解示意图。
其中，各附图标记分别表示：1-主屏壁；2-长螺栓；3-次屏壁；4-泡沫玻璃板；5-聚氨酯泡沫板；6-阻水层；7-保护层；8-螺母及密封垫圈。
具体实施方式
下面对本发明的实施例作详细说明，下述的实施例在以本发明技术方案为前提下进行实施，给出了详细的实施方式和具体的操作过程，但本发明的保护范围不限于下述的实施例。
如图3和图4所示，在本发明的一个较佳实施例中，LNG船液货舱的绝热系统包括主屏壁1、绝热层和保护层7，绝热层包括次屏壁3、绝热板及阻水层6。绝热板夹装在次屏壁3和保护层7之间，保护层7覆盖在阻水层4的外表面。
主屏壁1为9%镍钢材质，次屏壁3为不锈钢材质，次屏壁3安装在主屏壁1上。次屏壁3与主屏壁1之间的间隙距离为5~10mm，间隙内充有惰性气体，所述惰性气体优选为氮气。所述不锈钢的热膨胀系数在16×10-6K-1左右。
绝热板包括泡沫玻璃板4和聚氨酯泡沫板5，泡沫玻璃板4由粘合剂粘接在次屏壁3的表面，聚氨酯泡沫板5由粘合剂粘接在泡沫玻璃板4的表面。泡沫玻璃板4和聚氨酯泡沫板5的单层厚度均为200mm。
保护层7为玻璃纤维增强的环氧树脂涂层，通过粘合剂粘接在最外层的阻水层4的表面，厚度为1mm。阻水层4为玻璃布夹铝箔三合一薄膜。
本实施例提供的LNG船液货舱的绝热系统的构造方法，包括以下步骤：
第一步，在主屏壁1上焊接用于固定绝热层的长螺栓2；
第二步，将次屏壁3安装到主屏壁1上；
第三步，将两层大块泡沫玻璃板4粘接到次屏壁3上；
第四步，将中间粘接有一层阻水层6的两层大块聚氨酯泡沫板5粘接到泡沫玻璃板4的表面，并用螺母及密封垫圈8固定；
第五步，在聚氨酯泡沫板5的外表面粘接阻水层6；
第六步，将玻璃棉类软性绝热材料填充进相邻的绝热层板块之间的空间，并用粘合剂固定；
第七步，在阻水层6的上表面覆盖一层保护层7。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的试验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (10)

  1. 一种液化天然气船液货舱的绝热系统，所述绝热系统包括主屏壁、绝热层和保护层，所述绝热层安装在所述主屏壁上，所述保护层覆盖在所述绝热层的外表面，其特征在于，所述绝热层由内向外依次包括次屏壁、绝热板及阻水层，所述绝热板包括泡沫玻璃板和聚氨酯泡沫板，所述泡沫玻璃板通过粘合剂粘接在所述次屏壁的表面，所述聚氨酯泡沫板通过粘合剂粘接在所述泡沫玻璃板的表面。
  2. 如权利要求1所述的绝热系统，其中所述主屏壁为9%镍钢材质，所述次屏壁为不锈钢材质，所述不锈钢的热膨胀系数为16×10-6K-1。
  3. 如权利要求1所述的绝热系统，其中所述次屏壁与所述主屏壁之间具有间隙，所述间隙的距离为5~10mm，所述间隙内充有惰性气体，所述惰性气体为氮气或氩气。
  4. 如权利要求1所述的绝热系统，其中所述泡沫玻璃板为两层或两层以上叠加而成，各层之间通过粘合剂粘接。
  5. 如权利要求1所述的绝热系统，其中所述聚氨酯泡沫板为两层或两层以上叠加而成，各层之间夹有阻水层。
  6. 如权利要求1所述的绝热系统，其中所述保护层为玻璃纤维增强的环氧树脂涂层，所述保护层的厚度为1mm。
  7. 如权利要求1所述的绝热系统，其中所述阻水层为玻璃布夹铝箔三合一薄膜。
  8. 所述绝热层由多个较小的绝热层板块组成，各相邻的所述绝热层板块之间通过粘合剂固定填充有填充绝热材料，所述填充绝热材料为玻璃棉。
  9. 一种如权利要求1-8中任一项所述的液化天然气船液货舱的绝热系统的构造方法，所述构造方法包括如下步骤：
    第一步，在主屏壁上焊接用于固定绝热层的长螺栓；
    第二步，将对应于所述长螺栓位置而开有螺栓孔的次屏壁安装到所述主屏壁上；
    第三步，将同样开有螺栓孔的泡沫玻璃板粘接于所述次屏壁上，然后将同样开有螺栓孔的聚氨酯泡沫板粘接于所述泡沫玻璃板的表面，形成泡沫玻璃板/聚氨酯泡沫板的复合层；或直接将已粘附好的开有螺栓孔的泡沫玻璃板/聚氨酯泡沫板的复合层粘接于所述次屏壁上，所述泡沫玻璃板一面朝向所述次屏壁；
    第四步，将所述泡沫玻璃板/聚氨酯泡沫板的复合层通过与所述长螺栓配合的密封垫圈及螺母固定于所述次屏壁上；
    第五步，在所述聚氨酯泡沫板的外表面粘接阻水层；
    第六步，将填充绝热材料填充进相邻的绝热层板块之间的空间，并用粘合剂固定所述填充绝热材料；
    第七步，在所述阻水层的上表面覆盖一层保护层。
  10. 如权利要求9所述的构造方法，其中在第三步中，所述聚氨酯泡沫板由两层叠加而成时，所述两层之间还夹有阻水层。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115388246A (zh) * 2022-09-30 2022-11-25 北京星航机电装备有限公司 一种复合材料尾气管路系统及其成型方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106516017B (zh) * 2016-12-21 2019-03-12 上海交通大学 液化天然气船b型液货舱的绝热系统及其构造方法
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KR102548207B1 (ko) * 2020-12-14 2023-06-27 (주)동성화인텍 실리콘 고무 시트가 도입된 lng선 배관 단열시스템의 수축 및 팽창 이음부
CN113847481A (zh) * 2021-12-01 2021-12-28 中国飞机强度研究所 一种飞机测试用阀门式通风装置
CN114572350B (zh) * 2022-03-14 2024-07-12 招商局金陵鼎衡船舶(扬州)有限公司 一种沥青船的整体式绝热保温船舱及其建造方法
CN117538176B (zh) * 2023-11-27 2024-08-16 上海交通大学 一种用于拉压与疲劳强度测试的试验结构、装置及系统

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW307727B (zh) * 1994-09-20 1997-06-11 Gaztransp & Technigaz
CN101096133A (zh) * 2006-06-30 2008-01-02 气体运输技术公司 具有保护膜的预制板
CN101688640A (zh) * 2007-05-29 2010-03-31 现代重工业株式会社 具有焊接的次防壁的液化天然气储存箱绝热系统及其构造方法
CN103748401A (zh) * 2011-08-01 2014-04-23 气体运输技术公司 密封绝热罐
CN104443284A (zh) * 2014-10-24 2015-03-25 上海交通大学 液化天然气船b型独立液货舱绝热系统及其构造方法
CN104712899A (zh) * 2013-12-13 2015-06-17 南京航空航天大学 一种真空绝热板保温的深冷液体储运罐
CN104802937A (zh) * 2015-04-23 2015-07-29 上海交通大学 液化天然气船独立液货舱绝热层系统及其构建方法
CN105736903A (zh) * 2016-02-02 2016-07-06 上海交通大学 带有防溅屏结构的独立b型lng船液货舱绝热系统
CN106516017A (zh) * 2016-12-21 2017-03-22 上海交通大学 液化天然气船b型液货舱的绝热系统及其构造方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200993296Y (zh) * 2006-12-25 2007-12-19 上海船舶工艺研究所 一种用于液化天然气装置的绝热保温结构
KR101031251B1 (ko) * 2008-04-25 2011-04-29 삼성중공업 주식회사 액화천연가스 운반선 화물창의 단열구조
KR101532278B1 (ko) * 2013-11-29 2015-06-29 에스티엑스조선해양 주식회사 Ｌｎｇ 화물창의 단열 구조물

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW307727B (zh) * 1994-09-20 1997-06-11 Gaztransp & Technigaz
CN101096133A (zh) * 2006-06-30 2008-01-02 气体运输技术公司 具有保护膜的预制板
CN101688640A (zh) * 2007-05-29 2010-03-31 现代重工业株式会社 具有焊接的次防壁的液化天然气储存箱绝热系统及其构造方法
CN103748401A (zh) * 2011-08-01 2014-04-23 气体运输技术公司 密封绝热罐
CN104712899A (zh) * 2013-12-13 2015-06-17 南京航空航天大学 一种真空绝热板保温的深冷液体储运罐
CN104443284A (zh) * 2014-10-24 2015-03-25 上海交通大学 液化天然气船b型独立液货舱绝热系统及其构造方法
CN104802937A (zh) * 2015-04-23 2015-07-29 上海交通大学 液化天然气船独立液货舱绝热层系统及其构建方法
CN105736903A (zh) * 2016-02-02 2016-07-06 上海交通大学 带有防溅屏结构的独立b型lng船液货舱绝热系统
CN106516017A (zh) * 2016-12-21 2017-03-22 上海交通大学 液化天然气船b型液货舱的绝热系统及其构造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115388246A (zh) * 2022-09-30 2022-11-25 北京星航机电装备有限公司 一种复合材料尾气管路系统及其成型方法

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