CN104981645B

CN104981645B - Heat-insulated container

Info

Publication number: CN104981645B
Application number: CN201480007927.6A
Authority: CN
Inventors: 宫地法幸; 宫本健太; 上门登; 上门一登; 药师秀; 药师秀一; 神前明生
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2013-03-01
Filing date: 2014-02-28
Publication date: 2018-07-20
Anticipated expiration: 2034-02-28
Also published as: WO2014132661A1; JP6390009B2; JPWO2014132661A1; CN104981645A

Abstract

The cryogenic substance that the heat-insulated container (104,124,134,144) of the present invention is used to preserve at a temperature of being maintained at less than room temperature, the heat-insulated container include：Container casing (110,124,134,144)；Heat insulating structure body (105,125,135,145) with configuration in the outside of the container casing (110,124,134,144).Heat insulating structure body (105,125,135,145) be include the first thermal insulation layer (111) set gradually outward from container casing (110,124,134,144), the multilayer structure making of second thermal insulation layer (112) and third thermal insulation layer (113), third thermal insulation layer (113) has multiple vacuum heat-insulation components (20A, 20B, 20C).

Description

Heat-insulated container

Technical field

The present invention relates to the heat-insulated containers with vacuum heat-insulation component, in particular to holding liquefied natural gas or hydrogen Deng the heat-insulated container of the cryogenic substance of the temperature less than room temperature.

Background technology

For example, the imflammable gas such as natural gas or hydrogen are gas at normal temperatures, therefore liquefy in its storage and conveying And it is maintained in heat-insulated container.Therefore it can say, liquefied imflammable gas is that substantially the cryogenic substance less than room temperature is (more specific For be cryogen).

Keep the typical example of the heat-insulated container of liquefied natural gas (LNG) can when illustrating natural gas as such substance To enumerate the LNG storage tanks of land setting or the tank etc. of LNG conveying tank cars (ship).These LNG tanks are needed at 100 DEG C lower than room temperature Above temperature (temperature of LNG is usually -162 DEG C) keeps LNG, so needing to improve heat-proof quality as possible.

But as one kind of the heat-barrier material with higher heat-proof quality, it is known that constituted using by mineral-type materials Threadiness core material vacuum heat-insulation component.General vacuum heat-insulation component can be enumerated bag-shaped outer with gas barrier property The inside of covering material is to depressurize the structure that air-tight state encloses the core material.As the application field of the vacuum heat-insulation component, Such as the thermal wall etc. of the household appliances such as home-use freezer, business refrigerating equipment or house can be enumerated.

In addition, recently, also studying the further increasing for heat-proof quality of vacuum heat-insulation component.Such as the application Shen It asks someone to propose the vacuum heat-insulation component such as lower structure as shown in Patent Document 1：Hot melt is connected to (overcoating as external cladding material Part) multilayer laminate film position be the sealing with multiple thinner wall sections and thick wall portion.As a result, with only be arranged thinner wall section knot Structure is compared, and extraneous air can be inhibited to pass through the inside into external cladding material at any time.Therefore, true with above-mentioned sealing Empty heat insulating component can realize excellent heat-proof quality for a long time.

If this vacuum heat-insulation component is applied to the heat-insulated containers such as LNG tank, can expect effectively to inhibit to heat-insulated The entrance of heat in container.LNG tank, as long as the entrance of heat can be inhibited, it will be able to effectively mitigate the production of boil-off gas (BOG) It is raw, it can effectively reduce the spontaneous vaporization rate (evaporation rate, BOR) of LNG.It is applied to the example of LNG tank as vacuum heat-insulation component Son, such as the heat insulation structural of cryogenic tank disclosed in patent document 2 can be enumerated.

Existing technical literature

Patent document

Patent document 1：WO2010/029730A1 bulletins

Patent document 2：Japanese Unexamined Patent Publication 2010-249174 bulletins

Invention content

The subject that the invention solves

In the field of the heat-insulated containers such as LNG tank, vacuum heat-insulation component is used to be only able to find patent document 2 as heat-barrier material Disclosed technology, hardly known to people.Here, it is that the present inventor attentively studies as a result, it has been found that, apply vacuum heat-insulation component Heat-insulated container in, in order to further increase heat-proof quality, have it is following illustrated by technical problem.

First, as first technical problem, can enumerate to inhibit the vacuum heat-insulation component through being adjacent to each other it Between thermophoresis.

It is coated around it (with hard polyurethane foams one using hard polyurethane foams for example, vacuum heat-insulation component is used as Body forming) thermal insulation board use.Being adjacent to the thermal insulation board in a manner of the outside for covering container casing, can be formed Heat-barrier material (vacuum heat-insulating layer) with vacuum heat-insulation component.That is, in the mutual gap of vacuum heat-insulation component, there are hard to gather Urethane foam, but the heat-proof quality of the hard polyurethane foams is inferior to vacuum heat-insulation component.Accordingly, there exist vacuum heat-insulation components Part can effectively inhibit the thermophoresis of (or cut-out) into container casing, but (hard is poly- in vacuum heat-insulation component mutual gap Urethane foam) in cannot effectively inhibit thermophoresis.

In particular, in the case where the temperature difference of the inside and outside air of container casing is big, it is possible to the hard from gap More thermophoresis occurs for polyurethane foam.In this case, it is possible to cause vacuum heat-insulation component to generate high heat-insulated Performance is substantially offset by the thermophoresis in gap.

Then, as second technical problem, the external cladding material (overcoating part) of vacuum heat-insulation component can be enumerated because protecting Hold the problem of the influence in the cryogenic substance of the inside of container casing and embrittlement.

For example, between container casing and vacuum heat-insulating layer, it is equipped with the thermal insulation board (phenol by phenol formaldehyde foam in many cases Aldehyde cystosepiment) constitute thermal insulation layer.The heat-proof quality of phenol formaldehyde foam is inferior to vacuum heat-insulation component, so being maintained in container casing Cryogenic substance cold temperature (low-heat) through phenolic foam board leakage to vacuum heat-insulating layer.It is used as vacuum heat-insulation component as a result, The temperature of multilayer laminate film of external cladding material also decline to a great extent.In particular, cold temperature is easy to connect from phenolic foam board is mutual Partial compromise is stitched, so the vacuum heat-insulation component positioned at seam portion is more easily colder than the vacuum heat-insulation component positioned at other parts But.

Substantially cooling can be easy to cause mechanical strength and declines and brittle multilayer laminate film, thus as time go on it is brittle into Row, it is possible to cause multilayer laminate film that cracking etc. occurs.If external cladding material is cracked, vacuum heat-insulation component may result in Inside pressure increase, so heat-proof quality is remarkably decreased.In addition, as described above, vacuum heat-insulation component and hard polyaminoester In the case that foam is integrally formed, since the thermal contraction of hard polyurethane foams causes multilayer laminate film to be stretched by pull.It should When pulling flexible be repeated, brittle multilayer laminate film is easy to happen cracking.Therefore, cause to be difficult to keep vacuum heat-insulation for a long time The heat-proof quality of component.

Then, as third technical problem, vacuum heat-insulation component itself can be enumerated, buckling deformation occurs.

For example, as described above, the thermal insulation board of vacuum heat-insulation component and the integrally formed obtained plate of hard polyurethane foams, Because of the difference of hard polyurethane foams and the percent thermal shrinkage of vacuum heat-insulation component, it is possible to make thermal insulation board buckling deformation.Thermal insulation board When buckling deformation, thermal insulation board easy tos produce gap to each other, the result is that the thermophoresis from gap increases, vacuum heat-insulating layer is whole Heat-proof quality decline.

The present invention is made to solve the problems, such as described above, it is intended that applying vacuum heat-insulation component Heat-insulated container in realize that heat-proof quality further increases, and permanently effective realization heat-proof quality.

The method used for solving the problem

The heat-insulated container of the present invention uses such as lower structure to solve technical problem：For keeping with the temperature less than room temperature The cryogenic substance of preservation, above-mentioned heat-insulated container include：Container casing；Heat insulation structural with configuration in the outside of the container casing Body, above-mentioned heat insulating structure body be include the first thermal insulation layer set gradually outward from said vesse shell, second thermal insulation layer and The multilayer structure making of third thermal insulation layer, above-mentioned third thermal insulation layer have multiple vacuum heat-insulation components.

The specific structure of vacuum heat-insulation component for the heat-insulated container is not particularly limited, the vacuum heat-insulation structure Part can make the structure with inhibition or the blast resistance construction drastically deformed for preventing the vacuum heat-insulation component.

The above objects, features and advantages of the present invention illustrates change with reference to attached drawing by following preferred embodiment It obtains obviously.

Invention effect

In the present invention, according to above structure, following effect can be obtained：In the heat-insulated appearance of application vacuum heat-insulation component Further increasing for heat-proof quality, and permanently effective realization heat-proof quality are realized in device.

Description of the drawings

Figure 1A is to indicate the spherical independent tank with spherical tank with the heat-insulated container as embodiments of the present invention 1 The schematic diagram of the outline structure of the LNG transfer pots ship (tanker) of mode, Figure 1B are to indicate corresponding regarding section with the I-I of Figure 1A arrows Spherical tank outline structure schematic diagram.

Fig. 2 is the configuration example for the heat insulating structure body for schematically showing heat-insulated container possessed by spherical tank shown in Figure 1B Partial cross-sectional view.

Fig. 3 is the schematic cross-sectional for the representative structure for indicating the vacuum heat-insulation component for heat insulating structure body shown in Fig. 2 Figure.

Fig. 4 is the partial cross-sectional view for the other structures example for schematically showing heat insulating structure body shown in Fig. 2.

Fig. 5 is the partial cross-sectional view for another other structures example for schematically showing heat insulating structure body shown in Fig. 2.

Fig. 6 is the structure for schematically showing heat insulating structure body possessed by the heat-insulated container of embodiments of the present invention 2 The partial cross-sectional view of example.

Fig. 7 is the partial cross-sectional view for the other structures example for schematically showing heat insulating structure body shown in fig. 6.

Fig. 8 is the partial cross-sectional view for another other structures example for schematically showing heat insulating structure body shown in fig. 6.

Fig. 9 is the partial cross-sectional view for the another other structures example for schematically showing heat insulating structure body shown in fig. 6.

Figure 10 is the signal of the configuration example for the vacuum heat-insulation component for indicating the heat-insulated container for embodiments of the present invention 3 Property partial cross-sectional view.

Figure 11 is the structure for schematically showing heat insulating structure body possessed by the heat-insulated container of embodiments of the present invention 4 The partial cross-sectional view of example.

Figure 12 is the structure for schematically showing heat insulating structure body possessed by the heat-insulated container of embodiments of the present invention 5 The partial cross-sectional view of example.

Figure 13 A are showing for the configuration example for the vacuum heat-insulation component for indicating the heat-insulated container for embodiments of the present invention 6 Meaning property sectional view, Figure 13 B are the amplification sectional views of the sealing of vacuum heat-insulation component shown in Figure 13 A.

Figure 14 is the schematic plan view of vacuum heat-insulation component shown in Figure 13 A.

Figure 15 is the check-valves indicated possessed by vacuum heat-insulation component shown in Figure 13 A and Figure 14 as expansion easing portion An example schematic sectional view.

Figure 16 is the check-valves indicated possessed by vacuum heat-insulation component shown in Figure 13 A and Figure 14 as expansion easing portion Another schematic sectional view.

Figure 17 is indicated possessed by vacuum heat-insulation component shown in Figure 13 A and Figure 14 as under the intensity of expansion easing portion The schematic diagram of an example at position drops.

Figure 18 A and Figure 18 B are the vacuum heat-insulation panels for indicating the heat-insulated container for embodiments of the present invention 7 respectively An example schematic sectional view.

Figure 19A and Figure 19B is to indicate other schematic cross-sectional of vacuum heat-insulation panels shown in Figure 18 B respectively Figure.

Figure 20 is showing for the representative structure of the ground type LNG tank for the heat-insulated container for being denoted as embodiments of the present invention 8 Meaning property sectional view.

Figure 21 is showing for the representative structure of the underground type LNG tank for the heat-insulated container for being denoted as embodiments of the present invention 8 Meaning property sectional view.

Figure 22 is the schematic cross-sectional of the representative structure of the hydrogen tank for the heat-insulated container for being denoted as embodiments of the present invention 9 Figure.

Figure 23 is the song of the result of the thermal simulation of the heat-insulated container of the expression present invention as an embodiment of the present invention Line chart.

Specific implementation mode

The heat-insulated container structure of the present invention is as follows：It is above-mentioned for keeping the cryogenic substance to be preserved less than the temperature of room temperature Heat-insulated container includes：Container casing；Heat insulating structure body with configuration in the outside of the container casing, above-mentioned heat insulating structure body are packets Include the multilayered structure of the first thermal insulation layer, second thermal insulation layer and third thermal insulation layer that are set gradually outward from said vesse shell Body, above-mentioned third thermal insulation layer have multiple vacuum heat-insulation components.

According to above structure, in inside thermal insulation layer, including first thermal insulation layer and second thermal insulation layer double-layer structure, and by every The excellent vacuum heat-insulation component of hot property forms third thermal insulation layer in the outside of inside thermal insulation layer.It comes from container casing as a result, The heat transfer (thermophoresis) of the cold temperature (low temperature) in portion can not only by first thermal insulation layer and the blocking of second thermal insulation layer this double-layer structure, and And further stopped by the third thermal insulation layer with vacuum heat-insulation component.Therefore it can effectively inhibit cold temperature to external leakage. In addition, the thermophoresis inside from extraneous air to heat insulating structure body is also stopped by third thermal insulation layer, so can effectively inhibit to exist The atmosphere temperature in the region of inside thermal insulation layer rises, and can relatively improve the heat-proof quality of inside thermal insulation layer.As a result, passing through The synergistic effect of the opposite heat-proof quality improved of the excellent heat-proof quality and inside thermal insulation layer of vacuum heat-insulation component itself, can Obtain the heat-proof quality of excellent heat insulating structure body.

Moreover, opposite improve of the heat-proof quality of inside thermal insulation layer can utilize inside thermal insulation layer to mitigate from container casing The influence that cold temperature brings third thermal insulation layer.Thereby, it is possible to inhibit to constitute the deterioration etc. of the vacuum heat-insulation component of third thermal insulation layer, So the heat-proof quality of heat insulating structure body can be kept well for a long time.

In the heat-insulated container of above structure, structure can also be as follows：Above-mentioned second thermal insulation layer have with above-mentioned first every Thermosphere is same or the heat-proof quality higher than above-mentioned first thermal insulation layer.

According to the structure, it can effectively inhibit cold temperature to the leakage of third thermal insulation layer using second thermal insulation layer, and profit The first thermal insulation layer of inside is thermally shielded with second thermal insulation layer, so as to the heat-proof quality of opposite raising first thermal insulation layer. Therefore, it is possible to make the heat-proof quality of heat insulating structure body further increase.

In addition, in the heat-insulated container of above structure, structure can also be as follows：Above-mentioned heat insulating structure body includes above-mentioned first Thermal insulation layer and the integrated position of above-mentioned second thermal insulation layer.

According to above structure, can also the part of inside thermal insulation layer be single layer structure, a part is double-layer structure.Cause This, for example, container casing outside arrange a thermal insulation board, by thermal insulation board it is main body integrated be single layer, can by thermal insulation board that This seam portion is as first thermal insulation layer and second thermal insulation layer double-layer structure.In general, the mutual seam of thermal insulation board, cold temperature It is easy leakage, but by making seam be that two-layer structure partly improves heat-proof quality, can effectively inhibit letting out by seam Leakage.Thus enable that the heat-proof quality of heat insulating structure body is more excellent.

In addition, in the heat-insulated container of above structure, structure can also be as follows：Above-mentioned vacuum heat-insulation component includes threadiness Core material and bag-shaped external cladding material with gas barrier property, it is enclosed to depressurize air-tight state in the inside of above-mentioned external cladding material Above-mentioned core material and constitute, and in above-mentioned external cladding material constitute towards said vesse shell medial surface inside outer cladding material The Heat pretreatment of material is higher than the outside external cladding material for constituting lateral surface.

According to above structure, in vacuum heat-insulation component, the medial surface towards the container casing for keeping cryogenic substance is improved Heat pretreatment.The medial surface of vacuum heat-insulation component can be inhibited brittle due to low temperature well.Thereby, it is possible to improve heat-insulated knot The reliability of structure body.

In addition, in the heat-insulated container of above structure, structure can also be as follows：Above-mentioned vacuum heat-insulation component has around it There is the sealing for the fin-shaped that above-mentioned external cladding material is bonded each other and is sealed, and by being folded into above-mentioned appearance in the sealing Above-mentioned vacuum heat-insulation component is prepared in the outside of above-mentioned second thermal insulation layer in the state of device shell side, it is heat-insulated to constitute above-mentioned third Layer.

According to above structure, the sealing of fin-shaped is sandwiched between third thermal insulation layer and second thermal insulation layer, so being capable of profit Effectively inhibit the leakage of the cold temperature generated via sealing with these.Thus enable that the heat-proof quality of heat insulating structure body is more excellent It is different.

In addition, in the heat-insulated container of above structure, structure can also be as follows：It is multiple possessed by above-mentioned third thermal insulation layer Above-mentioned vacuum heat-insulation component is adjacent to the state that its end face abuts each other.

According to above structure third thermal insulation layer is formed by making the end face of the edge of vacuum heat-insulation component abut each other.Cause This can inhibit cold temperature to be leaked from the seam of third thermal insulation layer, therefore the heat-proof quality of third thermal insulation layer can be made to become good, and And opposite improve of the heat-proof quality of the inside thermal insulation layer of third thermal insulation layer can be made further to become good.It thus enables that heat-insulated The heat-proof quality of structure is more excellent.

In addition, in the heat-insulated container of above structure, structure can also be as follows：It will be above-mentioned true in above-mentioned third thermal insulation layer The part that the end face of empty heat insulating component abuts each other is filled with the filling with insulation material different from the vacuum heat-insulation component.

According to above structure, filling with insulation material is set in the seam of third thermal insulation layer.Therefore it can further suppress cold Temperature is leaked from the seam of third thermal insulation layer.Thus enable that the heat-proof quality of heat insulating structure body is more excellent.

In addition, in the heat-insulated container of above structure, structure can also be as follows：Above-mentioned first thermal insulation layer and above-mentioned second every Thermosphere has multiple thermal insulation boards, and the thermal insulation board is adjacent to the state that its end face abuts each other, and when by it is above-mentioned every When the part that the end face of part or above-mentioned vacuum heat-insulation component that the end face of hot plate abuts each other abuts each other is as docking site, The position of the docking site of at least two thermal insulation layers in above-mentioned first thermal insulation layer, above-mentioned second thermal insulation layer and above-mentioned third thermal insulation layer In the position to offset one from another.

The vacuum heat-insulation component covering of third thermal insulation layer is configured according to the seam of above structure, such as second thermal insulation layer, The seam of first thermal insulation layer is configured the thermal insulation board covering of second thermal insulation layer.Therefore, it is possible to effectively inhibit cold in container casing Seam of the temperature through each thermal insulation layer transmit and thermophoresis to extraneous air.Thus enable that the heat-proof quality of heat insulating structure body is more excellent It is different.In addition, being staggered for the position at signified docking position position refers to imagining perspective view when making perspective view from Inside To Outside herein On position be staggered.

In addition, in the heat-insulated container of above structure, structure can also be as follows：Above-mentioned vacuum heat-insulation component is towards above-mentioned Mechanically with above-mentioned first in the state that the medial surface entire surface of container casing is not Nian Jie with the lateral surface of above-mentioned second thermal insulation layer Thermal insulation layer or above-mentioned second thermal insulation layer are fixed.

According to above structure, even if generating behavior or the heat receipts of thermal contraction between vacuum heat-insulation component and inside thermal insulation layer The difference of shrinkage, also can effectively inhibit vacuum heat-insulation component integrally occur buckling deformation or pull it is flexible cause repeatedly in The possibility of cracking etc. occurs for the external cladding material of side.Thus, it is possible to keep the thermal insulation of heat insulating structure body well for a long time Energy.

In addition, in the heat-insulated container of above structure, structure can also be as follows：Adjacent above-mentioned vacuum heat-insulation component configuration It is equal at the distance away from said vesse shell.

According to above structure, the deviation of the Temperature Distribution of the medial surface of vacuum heat-insulation component can be reduced.Thus, it is also possible to Inhibit the deviation of the thermal contraction of the vacuum heat-insulation component caused by the unevenness of Temperature Distribution.Thereby, it is possible to effectively inhibit vacuum heat-insulation Embrittlement or breakage of the external cladding material of component etc., so the heat-proof quality of heat insulating structure body can be kept well for a long time.

Can be such as lower structure in addition, in the heat-insulated container of above structure：Above-mentioned vacuum heat-insulation component includes threadiness Core material and bag-shaped external cladding material with gas barrier property, it is enclosed to depressurize air-tight state in the inside of above-mentioned external cladding material Above-mentioned core material and constitute, and with inhibiting or prevent the blast resistance construction drastically deformed of the vacuum heat-insulation component.

According to above structure, vacuum heat-insulation component has blast resistance construction, therefore even if is located at the vacuum heat-insulation component in outside Being exposed to harsh environment leads to internal residual gas expansion, also can effectively avoid the drastically deformation of vacuum heat-insulation component. Therefore, it is possible to play excellent explosion-proof, so the stability of vacuum heat-insulation component can be further increased.

Can be such as lower structure in addition, in the heat-insulated container of above structure：Above-mentioned vacuum heat-insulation component is configured to above-mentioned External cladding material completely by foamed resin layer cover thermal insulation board, and above-mentioned blast resistance construction pass through it is organic not remained after foaming The mode of class foaming agent forms above-mentioned foamed resin layer to realize.

Can be such as lower structure in addition, in the heat-insulated container of above structure：Above-mentioned vacuum heat-insulation component further include with it is upper Core material is stated to be enclosed the inside of above-mentioned external cladding material together and adsorb the adsorbent of internal residual gas, above-mentioned blast resistance construction By above-mentioned adsorbent using the adsorbent of the chemisorption type of the above-mentioned residual gas of chemisorption or using not because of residual gas Absorption and the adsorbent of non-heat generation that generates heat or realized using the adsorbent of chemisorption type and non-heat generation.

Can be such as lower structure in addition, in the heat-insulated container of above structure：Above-mentioned blast resistance construction passes through in above-mentioned outsourcing It covers material setting expansion easing portion and realizes, above-mentioned expansion easing portion is when internal expansion of the residual gas in the external cladding material The residual gas is discharged to outside to mitigate expansion.

Can be such as lower structure in addition, in the heat-insulated container of above structure：Above-mentioned expansion easing portion is provided in above-mentioned The check-valves of external cladding material or the low position of the locally intensity for being set in advance in above-mentioned external cladding material.

Can be such as lower structure in addition, in the heat-insulated container of above structure：Above-mentioned external cladding material has for bag The inner surface of the opening portion that inside is depressurized, the opening portion is hot welding layer, by making the hot welding layer be in contact with each other Thermal welding is carried out under state and can be inside hermetic bag, the sealing formed by the thermal welding of above-mentioned opening portion, including multiple Thinner wall section, the thinner wall section are the small thinner wall section of the thickness at the mutual welding position of above-mentioned hot welding layer.

Can be such as lower structure in addition, in the heat-insulated container of above structure：Above-mentioned external cladding material is by two panels laminates It constitutes, the face of a side of the laminates is above-mentioned hot welding layer, by the above-mentioned hot welding layer for making above-mentioned laminates phase each other In the state of configuration two panels, using a part for the peripheral part of the laminates as above-mentioned opening portion, the opening portion is removed to surround Except the mode of rest part of above-mentioned peripheral part carry out thermal welding, be formed as bag-shaped, above-mentioned peripheral part is heating-fusion bonded Position is the above-mentioned sealing for including multiple above-mentioned thinner wall sections.

Can be such as lower structure in addition, in the heat-insulated container of above structure：Above-mentioned sealing is in addition to multiple above-mentioned thin-walleds Further include multiple thick wall portions outside portion, which is the big thick wall portion of the thickness at above-mentioned welding position, above-mentioned thick wall portion and above-mentioned Thinner wall section is alternately arranged in such a way that above-mentioned thinner wall section is between above-mentioned thick wall portion.

In addition, in the heat-insulated container of above structure, structure can also be as follows：Said vesse shell, which has, includes flexure plane Shape.

According to above structure, it is adjacent to be easier to keep the distance away from container casing same in the vacuum heat-insulation component of flexure plane Deng.The deviation for inhibiting the thermal contraction of vacuum heat-insulation component as a result, improves the reliability of vacuum heat-insulation component, therefore can be long-term The heat-proof quality of heat insulating structure body is kept well.

Illustrate the preferred embodiment of the present invention referring to the drawings.In addition, in the following, in all figures of the drawings, to same or Comparable element adds identical reference marker, omits its repeat description.

(embodiment 1)

A, Figure 1B, Fig. 2~Fig. 4 illustrate representative an example of the heat-insulated container of the present invention referring to Fig.1.

[heat-insulated container]

In present embodiment 1, representative an example of the heat-insulated container as the present invention, as shown in Figure 1A, Ke Yilie The spherical tank 101 for lifting the LNG being arranged on LNG transfer pots ship 100 illustrates.As shown in Figure 1A, the LNG of present embodiment is defeated Tank sending ship 100 is the tank ship of spherical independent tank mode, including multiple spherical tanks 101 (5 are shared in Figure 1A).Multiple spherical tanks 101 are arranged in a row along the length direction of hull 102.Each spherical tank 101 is as shown in Figure 1B, has heat-insulated container 104, should The inside of heat-insulated container 104 is the inner space (fluid retaining space) for storing (holding) liquefied natural gas (LNG).In addition, ball The major part of shape tank 101 is covered by 102 external support of hull, top by lid 103.

Heat-insulated container 104 as shown in Figure 1B including container casing 110 and to the lateral surface of the container casing 110 carry out every The heat insulating structure body 105 of heat.Container casing 110 is configured to the low temperature object for keeping LNG etc. to be preserved less than the temperature of room temperature Matter is the made of metal such as stainless steel, aluminium alloy.The temperature of LNG is usually -162 DEG C, so as specific container casing 110, it is the made of aluminum alloy of 50mm or so that can enumerate thickness.Or can also be the stainless steel that thickness is 5mm or so.

Heat-insulated container 104 is fixed on hull 102 by supporting mass 106.Supporting mass 106 is generally known as baffle (skirt), tool There is thermal resistance (thermal break) structure.Heat insulation structure is, for example, to be passed inserted with heat in the centre of aluminium alloy and cryogenic steel material The structure of the low stainless steel of conductance, thus, it is possible to reduce into heat.

Heat insulating structure body 105 is disposed on the multilayer structure making of the thermal insulation layer in the outside of container casing 110, such as such as Fig. 2 Shown, it includes that the first thermal insulation layer 111, second thermal insulation layer 112 and third that are set gradually outward from container casing 110 are heat-insulated to be The multilayer structure making of layer 113.In present embodiment, there is first thermal insulation layer 111 and second in heat insulating structure body 105 as shown in Figure 2 Thermal insulation layer 112 independently existing part and 112 integrated part of first thermal insulation layer 111 and second thermal insulation layer.For side Just, first thermal insulation layer 111 and 112 integrated part of second thermal insulation layer are referred to as " integrated layer 33 ".

In the present embodiment, first thermal insulation layer 111 and second thermal insulation layer 112 and integrated layer 33 be configured to together every Hot plate 30A.Thermal insulation board 30A is such as the Foamex class by styrenic foams (foamed styrene), polyurethane foam, phenol formaldehyde foam Heat-barrier material or be filled into the inorganics such as the mineral wool of thermal-insulated frame, pearlite (perlite) heat-barrier material constitute.Certainly It can also be made of the well known heat-barrier material other than these.In addition, these heat-barrier materials are foaming other than mineral wool Body, so for convenience of description, thermal insulation board 30A is referred to as " foaming body thermal insulation board 30A ".

In the outside of container casing 110, the foaming body thermal insulation board 30A of square shape is fixed with by the configuration of a few thousand sheets units.Hair The thickness of foam thermal insulation board 30A is not particularly limited.In the present embodiment, foaming body thermal insulation board 30A is pearl method foaming polyphenyl Ethylene (EPS：Expandable Polystylene) system, be for the thickness in the range of 300mm~400mm in this case It can.The outside of foaming body thermal insulation board 30A is configured with the vacuum heat-insulation component 20A of square shape by a few thousand sheets units, is consequently formed Third thermal insulation layer 113.

The major part of foaming body thermal insulation board 30A is first thermal insulation layer 111 and the integrated integrated layer of second thermal insulation layer 112 33, but include the edge 31 being only made of first thermal insulation layer 111 and only by second thermal insulation layer in the periphery of foaming body thermal insulation board 30A 112 edges 32 constituted.If regarding the shape of foaming body thermal insulation board 30A as, based on integrated layer 33, in the week of the main body It encloses, the protruding portion (edge 31 and edge 32) protruded outward is formed with by the thickness of main body half, includes in the protruding portion： That the lateral surface of foaming body thermal insulation board 30A is formed with step difference and medial surface is flat (to the face of 110 side of container casing) is interior Side protruding portion, that is, edge 31 and it is formed with step difference and the flat outside of lateral surface in the medial surface of foaming body thermal insulation board 30A Protruding portion, that is, edge 32.

In the case where foaming body thermal insulation board 30A is configured adjacent to each other, as shown in Fig. 2, will be only by first thermal insulation layer 111 The basis of the edge 31 (Medial extrusion) of composition and edge 32 (outside protruding portion) docking being only made of second thermal insulation layer 112 On, so that respective step difference (first thermal insulation layer 111 and second thermal insulation layer 112) is overlapped.Thereby, it is possible to make foaming body thermal insulation board 30A is steadily adjacent to each other.

Therefore, in the present embodiment, in the outside of container casing 110, composition, which has, utilizes the interior of foaming body thermal insulation board 30A Side thermal insulation layer further constitutes the outside thermal insulation layer (third thermal insulation layer 113) having using vacuum heat-insulation component 20A on the outside, Inside thermal insulation layer includes the part being made of integrated layer 33 and the portion that is made of first thermal insulation layer 111 and second thermal insulation layer 112 Point.

Have using vacuum heat-insulation component 20A's in the outside setting as described above of second thermal insulation layer 112 or integrated layer 33 Third thermal insulation layer 113.Vacuum heat-insulation component 20A is adjacent in the form of the end face of its edge abuts each other each other.Vacuum every The periphery of hot component 20A is formed as the sealing 24 (or sealing fin) of fin-shaped as described later, but the sealing 24 is configured to fold into To the inside as more low temperature side.Therefore, sealing 24 is located at the main body and foaming body thermal insulation board 30A of vacuum heat-insulation component 20A Between.

In addition, vacuum heat-insulation component 20A both can be integrated with the lateral surface of foaming body thermal insulation board 30A, can also differ Body, and it is Chong Die with the outside of foaming body thermal insulation board 30A.In addition, as shown in Fig. 2, the mutual docking sections vacuum heat-insulation component 20A Position, the i.e. position of the seam of third thermal insulation layer 113 both can be with the outsides of the mutual docking sites foaming body thermal insulation board 30A, i.e. The position of the seam of second thermal insulation layer 112 is substantially consistent, illustrated by embodiment 2 that can also be as be described hereinafter like that, respectively every The position of the seam of thermosphere is staggered.

In the present embodiment, the mutual docking sites foaming body thermal insulation board 30A and vacuum heat-insulation component 20A are mutual Docking site is filled with filling with insulation material 14 and 15.Filling with insulation material 14 and 15 in order to ensure foaming body thermal insulation board 30A and The mutual thermal insulation in docking site of vacuum heat-insulation component 20A and be filled in the gap of these docking sites.In this embodiment party In formula, as filling with insulation material 14 and 15,1 μm of micro- mineral wool is less than using the diameter of fiber, but not limited to this, as long as With thermal insulation, softness and rich in the material of retractility.Specifically, for example, can enumerate flexibel polyurethane, containing plus The phenol formaldehyde foam of strong ingredient, the polyurethane foam etc. containing intensifier.It, can if it is the resin foam containing intensifier Realize the expansion behavior close to the linear expansion coefficient of container casing 110.

In addition, as shown in Fig. 2, the filling with insulation material 15 being arranged on the mutual docking sites vacuum heat-insulation component 20A, Can with foaming body thermal insulation board 30A or be filled in the filling with insulation material 14 of the mutual docking sites foaming body thermal insulation board 30A not The mode of contact separates gap filling.Thereby, it is possible to inhibit from foaming body thermal insulation board 30A or filling with insulation material 14 to filling every The thermophoresis of hot material 15 is let out so the cold temperature from inside thermal insulation layer can be reduced between vacuum heat-insulation component 20A Leakage.

In addition, conversely, can also inhibit the heat of extraneous air to be transmitted between vacuum heat-insulation component 20A, so energy Enough make the space (space where foaming body thermal insulation board 30A) being formed between vacuum heat-insulation component 20A and container casing 110 State of thermal isolation is good.Therefore, it is possible to relatively improve the heat-proof quality of foaming body thermal insulation board 30A.

In addition, as filling with insulation material 15 as described above using material soft and rich in retractility.By outer, even if because The temperature change of extraneous air, vacuum heat-insulation component 20A is flexible, and the mutual gaps vacuum heat-insulation component 20A change, thus Filling with insulation material 15 can also stretch.Filling with insulation material 15 is substantially avoided as a result, limits vacuum heat-insulation component 20A's It is flexible, it can effectively inhibit the crack failure etc. of external cladding material 22.

Heat insulating structure body 105 is not particularly limited mounted on the structure of container casing 110 can suitably use known side Method.In the present embodiment, as shown in Fig. 2, fixing heat-insulated knot using secure component 13 is constituted by bolt 13a and nut 13b Structure body 105.Specifically, nut 13b and container casing 110 are adhesively fixed using the methods of welding, and from third thermal insulation layer Bolt 13a insertions are screwed in nut 13b by the mode of the outside perforation of 113 (vacuum heat-insulation component 20A).At this point, true Empty heat insulating component 20A is provided with the through hole around sealed, so the inside of vacuum heat-insulation component 20A is able to maintain that in vacuum State.

At this point, the position of fastening vacuum heat-insulation component 20A is not particularly limited, such as in the vacuum heat-insulation component of square shape Above-mentioned through hole is arranged in the central portion of 20A, and bolt 13a is inserted into the through hole.In addition, as secure component 13, energy Enough use the well known component other than bolt 13a and nut 13b.

In addition, the bolt 13a of secure component 13 is to penetrate through the shape of foaming body thermal insulation board 30A and vacuum heat-insulation component 20A State is screwed to the nut 13b of container casing 110.Therefore, it is glued even if vacuum heat-insulation component 20A utilizes medial surface entire surface The lateral surface that agent etc. is adhered to foaming body thermal insulation board 30A is connect, can also be configured in the outside of foaming body thermal insulation board 30A.In the shape Under state, vacuum heat-insulation component 20A for foaming body thermal insulation board 30A by it is thermally-induced it is flexible be free.

Vacuum heat-insulation component 20A is arranged in the outside of the foaming body thermal insulation board 30A as inside thermal insulation layer, in this embodiment party In formula, to contact the outside thermal insulation layer of extraneous air.On the other hand, foaming body thermal insulation board 30A constitutes first thermal insulation layer 111 and the Two thermal insulation layers 112 (and integrated layer 33), so being easy to be cooled down by the cold temperature from container casing 110.Therefore, vacuum every Difference is easy tod produce between the percent thermal shrinkage behavior and the thermal contraction behavior of foaming body thermal insulation board 30A of hot component 20A.

In this regard, in the present embodiment, vacuum heat-insulation component 20A is not to be medial surface entire surface and foaming body thermal insulation board 30A (second thermal insulation layer 112) lateral surface bonding state, with foaming body thermal insulation board 30A (first thermal insulation layer 111 or the second every Thermosphere 112) it is mechanically fixed.Therefore, though vacuum heat-insulation component 20A and foaming body thermal insulation board 30A (second thermal insulation layer 112 or Integrated layer 33) though between generate be heat-shrinked behavior or percent thermal shrinkage difference if can effectively inhibit vacuum heat-insulation Buckling deformation integrally occurs for component 20A or the flexible external cladding material (aftermentioned) for leading to medial surface repeatedly of pull is cracked Deng possibility.

Thereby, it is possible to effectively inhibit between being generated between third thermal insulation layer 113 and second thermal insulation layer 112 or integrated layer 33 The misgivings that gap or the heat-proof quality of vacuum heat-insulation component 20A itself decline.Therefore, it is possible to avoid heat insulating structure body 105 every The decline of hot property, and the validity of heat-proof quality can be maintained for a long time.It can therefore, it is possible to improve heat insulating structure body 105 By property.

In addition, vacuum heat-insulation component 20A is at least mechanically fixed with container casing 110 by secure component 13 Deng, but It can also locally be adhesively fixed with the lateral surface of foaming body thermal insulation board 30A (second thermal insulation layer 112 or integrated layer 33).Example Such as, it can be listed below structure, but be not particularly limited, which is by the central portion of the vacuum heat-insulation component 20A of square shape It is adhered to exact position (pin point) using well known bonding agent and utilizes secure component 13 that the suitable position of peripheral part is tight Gu.

In the present embodiment, the covering of third thermal insulation layer 113 formed using vacuum heat-insulation component 20A using foaming body every The substantially entire surface of first thermal insulation layer 111 and second thermal insulation layer 112 (and integrated layer 33) that hot plate 30A is formed.This place The substantially entire surface referred to refers to lateral surface (the i.e. outside of foaming body thermal insulation board 30A of second thermal insulation layer 112 and integrated layer 33 Face) 85% or more, preferably 90% or more, further preferably 95% or more, particularly preferably 98% or more.

Constitute the vacuum heat-insulation component 20A of third thermal insulation layer 113, heat conductivity is than constituting first thermal insulation layer 111 and the The foaming body thermal insulation board 30A of two thermal insulation layers 112 (and their integrally-formed integrated layers 33) is low.Such as in this embodiment party Vacuum heat-insulation the component 20A, pyroconductivity λ used in formula is 0.002W/mK (at 0 DEG C), so making the value ratio as hair About low 15 times or so of the pyroconductivity of the foamed styrene (expanded polystyrene (EPS)) of the material of foam thermal insulation board 30A.Therefore, at this In embodiment, the thermal conductivity ratio second thermal insulation layer 112 (inside thermal insulation layer) of third thermal insulation layer 113 (outside thermal insulation layer) is low, And cover the substantially entire surface in the outside of second thermal insulation layer 112.

Thereby, it is possible to which the thermophoresis of the interior from container casing 110 is greatly reduced, can effectively play as High heat-proof quality possessed by the vacuum heat-insulation component 20A of three thermal insulation layers 113.In addition, can also have using third thermal insulation layer 113 Effect inhibits extraneous air heat to enter inside.Thus, it is also possible to be greatly reduced between third thermal insulation layer 113 and container casing 110 Temperature is provided with the temperature at the position of first thermal insulation layer 111 and second thermal insulation layer 112.

Therefore, according to the present embodiment, the high of the vacuum heat-insulation component 20A for constituting third thermal insulation layer 113 can be utilized The synergistic effect of heat-proof quality and utilization first thermal insulation layer 111, second thermal insulation layer 112, the heat-proof quality of integrated layer 33, can Keep the heat-proof quality of heat insulating structure body 105 very high.In addition, third thermal insulation layer 113 passes through in second thermal insulation layer 112 or integration The outside of layer 33 is arranged vacuum heat-insulation component 20A and constitutes, without the vacuum heat-insulation component 20A that overlaps, so can Reduce the usage amount of more expensive vacuum heat-insulation component 20A.

[vacuum heat-insulation component]

Then, an example of the concrete structure of the vacuum heat-insulation component 20A used in present embodiment is illustrated.Vacuum every Hot component 20A is as shown in figure 3, include core material 21, external cladding material (overcoating part) 22 and adsorbent 23.Core material 21 and adsorbent 23 It is enclosed the inside of external cladding material 22 to depressurize air-tight state (substantial vacuum state).External cladding material 22 is with gas barrier property Bag-shaped component made by keeping the laminates 220 of two panels opposite close by sealing 24 around it in the present embodiment Envelope, to as bag-shaped.In addition, sealing 24 due to internal no core material 21 and laminates 220 are in contact with each other, so being formed as The fin-shaped to extend outside from the main body of vacuum heat-insulation component 20A.

Core material 21 is the component of threadiness, in the present embodiment for example using the utilization for being 4 μm by avarage fiber diameter The material that the glass fibre that centrifugal process generates is fired.Using inorfils such as glass fibres as core material 21, thus with make With in the case of organic fiber compared to improving flame retardancy.In addition, glass fibre can not be firing, but that fires can more carry The stability of high vacuum insulation component 20A.

The medial surface of vacuum heat-insulation component 20A is likely exposed to 100 DEG C lower than room temperature or more of low temperature, so inside The external cladding material 22 of side is likely to occur the embrittlement caused by low temperature.In this regard, by using the glass fibre of firing, even Just in case the broken bag caused by the embrittlement of external cladding material 22 occurs, it also can effectively inhibit the degree of the change in size of core material 21.

When to 22 inner pressure relief of external cladding material, size distortion occurs for core material 21.If unfired glass fibre, the ruler Very little deformation is at twice or more (typically about 5~6 times or so), so when 22 broken bag of external cladding material causes the size of core material 21 When deformation, the thickness of vacuum heat-insulation component 20A increases.Unlike this, in the case of using the glass fibre of firing, which becomes Shape can inhibit at 1.2 times or so, at most also at 1.5 times or less.So even being that core material 21 causes size distortion, can also press down Make the influence brought to vacuum heat-insulation component 20A.

In addition, in the present embodiment, being used as core material 21 and utilizing glass fibre made from centrifugal process, but glass fibre Manufacturing method be not limited to centrifugal process, can also use well known manufacturing method, such as method of manufacturing paper with pulp (will be pre-dispersed in water The method that glass fibre is shaped and is dehydrated in a manner of copy paper) etc..For example, the manufacturing method referred to as method of manufacturing paper with pulp inherently makes The method that the thickness of glass fibre becomes smaller can also be easy to reduce so using glass fibre made from the method for manufacturing paper with pulp as core material 21 Its size distortion.Therefore, it is influenced caused by the size distortion of core material 21 even if 22 broken bag of external cladding material if can inhibit.

Laminates 220 are to be sequentially laminated with sealer 221, gas barrier layer 222 and hot welding layer in the present embodiment 223 three layers of structure.Specifically, the nylon membrane of 35 μm of thickness can be for example enumerated as sealer 221, as resistance Gas-bearing formation 222 can enumerate the aluminium foil of 7 μm of thickness, and the low density polyethylene films of 50 μm of thickness can be enumerated as hot welding layer 223.

Adsorbent 23 is adsorbed and removed after the inner pressure relief sealing core material 21 of external cladding material 22 from the fine of core material 21 The residual gas (also include vapor) of the releasings such as gap, from the extraneous air of the indivisible entrance such as sealing 24 (also include water Steam).Adsorbent 23 is enclosed well known container.The container is closed to depressurize together with core material 21 inside external cladding material 22 After state is enclosed, because of external force such as trepanning.Thereby, it is possible to play the absorption property of adsorbent 23.

In addition, the more specific structure of core material 21, external cladding material 22, adsorbent 23, in (the tool of aftermentioned embodiment 6 Have the vacuum heat-insulation component 20C of blast resistance construction) in be described in detail.

It, can be in the main body (other than the sealing 24 of fin-shaped of vacuum heat-insulation component 20A in addition, in the present embodiment Part) entire surface (both lateral surface and medial surface), form fire retardant layer 225, can also be in the peripheral part shape of sealing 24 At sealing protective layer 27.

Fire retardant layer 225 is as shown in figure 3, be formed in the surface (outside of sealer 221) of external cladding material 22, at this In embodiment, use commercially available aluminium strip (such as 50 μm of thickness).It is pasted in a manner of the main body of covering vacuum heat insulating component 20A The aluminium strip, thus, it is possible to assign flame retardancy to vacuum heat-insulation component 20A.In addition, aluminium strip is conductive, even if so electric leakage etc. Certain caused electric current flows through vacuum heat-insulation component 20A, can also discharge the electric current.Thereby, it is possible to reduce electric current to pass through vacuum The possibility of the inside of heat insulating component 20A, the inside for also capableing of substantive upper electric shielding vacuum heat-insulation component 20A (assign electrical shielding Property).

In addition, as fire retardant layer 225, other than aluminium strip, (aluminium flake) of sheet, (aluminium sheet) of plate can also be used Deng.In addition, signified aluminium includes aluminium simple substance and aluminium alloy herein.Alternatively, it is also possible to use other metals (such as copper, no Rust steel, titanium etc.) or its alloy substitute aluminium.Fire retardant layer 225 has flame retardancy and electric conductivity, but to vacuum heat-insulation component From the perspective of 20A assigns good flame retardancy, preferably there is good durability.In addition, flame retardancy is American insurance dealer Safety test institute (UL：Underwriters Laboratories) flame retardancy specification UL510FR standards more than.

Sealing protective layer 27 is the portion that the section of the i.e. laminates 220 of peripheral part to cover the sealing 24 of fin-shaped is exposed The layer for the flame retardancy that the mode of position is constituted.The sealing protective layer 27 is in the present embodiment by by the band of vinyl chloride It is pasted onto sealing 24 and constitutes, but not limited to this, it can also use the banding or sheet formed by well known flame retardant material Or well known sealing material (sealing element) with flame retardancy.Flame retardancy required by sealing protective layer 27 and fire retardant layer 225 is same, is UL510FR standards or more.In addition, sealing protective layer 27 preferably also has electricity absolutely other than flame retardancy Edge.The flame retardancy and electrical shielding of vacuum heat-insulation component 20A can be improved by the way that sealing protective layer 27 is arranged.

In the present embodiment, the formation of fire retardant layer 225 and sealing protective layer 27 is not essential.It but, if will The heat-insulated container 104 of present embodiment is used for the spherical tank 101 of LNG transfer pots ship 100, then vacuum heat-insulation component 20A preferably has There are good flame retardancy and electrical shielding.Therefore, by the way that any one of fire retardant layer 225 or sealing protective layer 27 or two are arranged Person can improve the reliability and durability of vacuum heat-insulation component 20A.

[heat-blocking action of heat insulating structure body]

Then, the heat-blocking action of the heat insulating structure body of above structure 105 is specifically described.As described above, this implementation The heat-insulated container 104 of mode has the outside heat insulating structure body being arranged in container casing 110, which is to include First thermal insulation layer 111 and second thermal insulation layer 112 and integrated layer 33 as inside thermal insulation layer；With than second thermal insulation layer 112 The multilayer structure making for the third thermal insulation layer 113 being arranged in the outer part.In addition, keeping the low temperature objects such as LNG in the inside of container casing 110 Matter.

Herein, it is located at the first thermal insulation layer 111 of 110 side of container casing, second thermal insulation layer 112 and integrated layer 33 and utilizes the Three thermal insulation layers 113 cover the substantially entire surface on the outside of it, and the third thermal insulation layer 113 is by the excellent vacuum heat-insulation component of heat-proof quality 20A is constituted.That is, vacuum heat-insulation component 20A its pyroconductivity λ ratios composition first thermal insulation layer 111 of composition third thermal insulation layer 113, The foamed styrene of second thermal insulation layer 112 and integrated layer 33 (inside thermal insulation layer) is much lower.Therefore, container casing 110 is cold Even if temperature conducts heat (thermophoresis) to outside, also by third via first thermal insulation layer 111, second thermal insulation layer 112 or integrated layer 33 The vacuum heat-insulation component 20A of thermal insulation layer 113 effectively stops, leakage of the cold temperature to extraneous air can be greatly reduced.

Moreover, in terms of the thermal insulation layer of inside, the substantially entire surface of the lateral surface of the inside thermal insulation layer is by vacuum heat-insulation component 20A Covering.It is inside from extraneous air using the excellent heat-proof quality substantially cut-out of vacuum heat-insulation component 20A therefore, it is possible to expect The effect of side thermal insulation layer heat transfer.Thus, it is possible to the atmosphere temperature in the region (inside area of insulation) where thermal insulation layer on the inside of effectively inhibiting The misgivings risen by extraneous air are spent, thus, it is possible to relatively improve the heat-proof quality of inside thermal insulation layer.As a result, it is possible to utilize The collaboration of the excellent heat-proof quality and the opposite heat-proof quality improved for utilizing inside thermal insulation layer of vacuum heat-insulation component 20A itself Effect can make the heat-proof quality of heat insulating structure body 105 very high.

In particular, in inside thermal insulation layer, includes not only one layer of structure as integrated layer 33, further include heat-insulated by first The two-layer structure that layer 111 and second thermal insulation layer 112 are overlapped.Air layer, object are formed between the part of the two-layer structure, each layer Continuity in matter is isolated.For example, in the present embodiment, layer of the integrated layer 33 as a foamed styrene, be Continuous single layer on thickness direction, but in the part of first thermal insulation layer 111 and the two-layer structure of second thermal insulation layer 112, first every There is no continuity isolated between thermosphere 111 and second thermal insulation layer 112.The inside thermal insulation layer of heat insulating structure body 105 is at least as a result, Partly by multiple stratification, so heat-insulated by the three-decker raising for further including third thermal insulation layer 113 (vacuum heat-insulation component 20A) Performance.

Herein, the part of two-layer structure is equivalent to the mutual docking sites foaming body thermal insulation board 30A in the present embodiment (seam of first thermal insulation layer 111 and second thermal insulation layer 112 and integrated layer 33), but in general, the main body phase with thermal insulation board Than internal cold temperature is easier to leak from the mutual docking site of thermal insulation board.In this regard, in the present embodiment, by that will dock Position is set as two-layer structure, can make the seam of second thermal insulation layer 112 multiple stratification nearby, so cold temperature can effectively be reduced from connecing Seam leakage.

Moreover, in the present embodiment, as the gap of seam, (edge 31 and 32 of foaming body thermal insulation board 30A is mutual Gap) in be filled with filling with insulation material 14.In addition, in the present embodiment, foaming body thermal insulation board 30A and vacuum heat-insulation component 20A is integrated, but vacuum heat-insulation component 20A is also filled with filling with insulation material 15 each other.Thus, it is possible to further press down The cold temperature made in container casing 110 leaks into extraneous air via seam.The result is that vacuum heat-insulation structure can be efficiently used The heat-proof quality of part 20A, and can ensure the whole good heat-proof quality of heat insulating structure body 105.

It is leaked from seam in addition, cold temperature can be reduced effectively, so third thermal insulation layer 113 can be avoided vacuum heat-insulation structure Part 20A is partly per multiple ground overlappings.Therefore, third thermal insulation layer 113 substantially can be by vacuum heat-insulation component 20A single layer structures At.Thus, it is possible to inhibit the increase using number of more effective vacuum heat-insulation component 20A, thus can realize manufacture every Resource-saving when heat container 104.

In addition, when in terms of vacuum heat-insulation component 20A, reduce seam (first thermal insulation layer 111 of the cold temperature from inside thermal insulation layer With the two-layer structure of second thermal insulation layer 112) leakage rate.It is brittle caused by low temperature therefore, it is possible to inhibit external cladding material 22, And the buckling deformation etc. of vacuum heat-insulation component 20A can also be inhibited.Thereby, it is possible to keep vacuum heat-insulation component 20A's for a long time Heat-proof quality.

In this way, as long as the heat-proof quality of heat insulating structure body 105 can be made good, it can especially make inside thermal insulation layer thinning. Therefore, when the whole size of heat-insulated container 104 is constant, the internal capacity of container casing 110 can increase (with reference to aftermentioned Embodiment).

In addition, in LNG transfer pots ship 100 shown in figure 1A, the boil-off gas (BOG) of LNG is generally used to be used as fuel, And if as the spherical tank 101 of this LNG transfer pots ship 100 using the heat-insulated container 104 of present embodiment, because excellent Heat-proof quality can inhibit the generation of boil-off gas, and can inhibit the usage amount of the fuel as boil-off gas, so energy Enough improve economy.In addition, in addition, in the case where boil-off gas is re-liquefied, it can also inhibit generation of boil-off gas itself, So can reduce with re-liquefied energy loss.

In addition, in the present embodiment, first thermal insulation layer 111 and second thermal insulation layer 112 and integrated layer 33 are configured to The foaming body thermal insulation board 30A of one, the lateral surface that foaming body thermal insulation board 30A is configured to cover spherical container casing 110 are whole Body.In other words, vacuum heat-insulation component 20A configurations inside thermal insulation layer lateral surface, so the cryogenic substances such as LNG are to vacuum heat-insulation The distance of component 20A is roughly equal in universe.Therefore, the transmission of the cold temperature inside container casing 110, i.e., the leakage of cold temperature Amount is roughly equal in entire inside thermal insulation layer.

Moreover, comparing cold temperature for the main body (integrated layer 33) of foaming body thermal insulation board 30A is easier the docking section leaked Position (seam) is the two-layer structure of first thermal insulation layer 111 and second thermal insulation layer 112, so can reduce the heat-insulated of main body and seam The difference of performance.As a result, it is possible to make the medial surface of vacuum heat-insulation component 20A, i.e. inside thermal insulation layer connects with vacuum heat-insulation component 20A The Temperature Distribution in tactile face is further equal.Therefore, it is possible to reduce vacuum heat-insulation component 20A medial surface Temperature Distribution it is inclined Difference, so can also inhibit the deviation of the thermal contraction of external cladding material 22 caused by the unevenness of Temperature Distribution.As a result, it is possible into Embrittlement or breakage etc. caused by one step inhibits the mechanical strength of external cladding material 22 to decline, can further keep for a long time vacuum every The heat-proof quality of hot component 20A.

Moreover, in the present embodiment, the sealing 24 of the fin-shaped of vacuum heat-insulation component 20A is folded into inside, so The leakage of the cold temperature of the generation of sealing 24 via fin-shaped can effectively be inhibited.In addition, the core material 21 of vacuum heat-insulation component 20A makes With inorfils such as glass fibres, the fire retardant layer 225 of the main body of covering vacuum heat insulating component 20A is either set or is being sealed The sealing protective layer 27 of the peripheral part setting flame retardancy in portion 24, thus, it is possible to improve the flame retardancy of vacuum heat-insulation component 20A.By Even if this outside can effectively be inhibited using the flame retardancy of vacuum heat-insulation component 20A into heat-insulated container 104 if fire occurs Prolong burning.

In addition, in the present embodiment, vacuum heat-insulation component 20A is not completely different from the behavior of thermal contraction or percent thermal shrinkage Foaming body thermal insulation board 30A fix, but laminated configuration.Thereby, it is possible to well inhibit the deformation of vacuum heat-insulation component 20A or The breakage etc. of the external cladding material 22 of person's vacuum heat-insulation component 20A.Even if in particular, due to the use environment of heat-insulated container 104 Variation and be heat-shrinked in foaming body thermal insulation board 30A, also can substantially prevent with the thermal contraction vacuum heat-insulation structure The flexible possibility of part 20A pulls.Therefore, it is possible to avoid pull is flexible from causing mechanical strength to decline repeatedly and make outer cladding material The damaged possibility such as cracking occurs in material 22, good heat-proof quality can be maintained for a long time.

In addition, in the present invention, the mechanical strength of external cladding material 22 (and constituting the laminates 220 of external cladding material 22) The stretching strength determination that descends through external cladding material 22 evaluate.Specifically, according to JIS K 7124 and ISO 527- 3, it under conditions of tensile speed 100mm/ minutes, is exposed under room temperature or low temperature environment, measures measure object sample (outer cladding Material 22 or laminates 220 etc.) tensile strength, it is strong compared to the stretching under normal temperature environment based on the tensile strength under low temperature environment Degree declines how many degree to be evaluated.In addition, low temperature environment passes through mixed ethanol, liquid nitrogen and dry ice in the case of -100 DEG C It is adjusted and realizes, realized by liquid nitrogen in the case of -196 DEG C.

In addition, covering the heat-insulated laminate 30A of foaming body substantially by the third thermal insulation layer 113 that vacuum heat-insulation component 20A is constituted Entire surface, thus can also inhibit foaming body thermal insulation board 30A surface temperature (second thermal insulation layer 112 or integrated layer 33 it is outer The temperature of side) because of environmental change deviation occurs.Thereby, it is possible to inhibit the thermal contraction of foaming body thermal insulation board 30A itself, so energy Enough reduce the difference of the thermal contraction behavior of vacuum heat-insulation component 20A and foaming body thermal insulation board 30A.

For example, in the environment of sunlight shines heat-insulated container 104, the part on the sunny side of heat insulating structure body 105 and in the shade Part easy tos produce the unevenness of heat distribution.The uneven thermal contraction behavior to foaming body thermal insulation board 30A entirety of heat distribution generates very Big influence, it is possible to foaming body thermal insulation board 30A be made to generate the difference of the percent thermal shrinkage of part.

In this regard, in the present embodiment, foaming body thermal insulation board 30A is heat-insulated by vacuum heat-insulation component 20A and extraneous air, institute Can effectively inhibit deformation etc. caused by the temperature change of foaming body thermal insulation board 30A.As a result, it is possible to inhibit third well Gap is generated between thermal insulation layer 113 and second thermal insulation layer 112, but also can inhibit to constitute the vacuum of third thermal insulation layer 113 every Deformation or breakage of hot component 20A etc..Thus, it is possible to improve the reliability of heat insulating structure body 105.

[variation]

In the heat-insulated container 104 of present embodiment, as the typical example of heat insulating structure body 105, list shown in Fig. 2 Structure, however, the present invention is not limited thereto.For example, in structure shown in Fig. 2, secure component 13 is by penetrating through foaming body thermal insulation board 30A Integrated layer 33 and foaming body thermal insulation board 30A is fixed on container casing 110, but utilize the fixing means of secure component 13 It is without being limited thereto.For example, it is also possible to as shown in figure 4, by the way that secure component 13 is penetrated through first thermal insulation layer 111 and second thermal insulation layer The part of 112 overlappings, and cooperatively fix first thermal insulation layer 111 and second thermal insulation layer 112 with vacuum heat-insulation component 20A.Profit It is not particularly limited with the fastening position of the foaming body thermal insulation board 30A (and vacuum heat-insulation component 20A) of secure component 13, according to each Kind condition fastens at position appropriate.

In addition, vacuum heat-insulation component 20A may not be using 13 mechanical fasteners of secure component, but as shown in figure 5, profit It is adhesively fixed on foaming body thermal insulation board 30A with well known bonding agent 16.In this structure, such as vacuum heat-insulation component 20A's Multiple positions of medial surface apply bonding agent 16, and the lateral surface for being adhered to foaming body thermal insulation board 30A is bonded.As bonding Agent 16 can enumerate well known hot melt class bonding agent, but be not particularly limited.In addition, as multiple bonding sites, such as can It enough enumerates near quadrangle and central portion, but is not particularly limited.

In addition, in the present embodiment, as shown in Fig. 2, Fig. 4 and Fig. 5, seam (the vacuum heat-insulation structure of third thermal insulation layer 113 The mutual docking sites part 20A) position and second thermal insulation layer 112 seam (the mutual docking sections foaming body thermal insulation board 30A Position) position it is substantially consistent.However, the invention is not limited thereto, illustrated by embodiment 2 that can also be as be described hereinafter like that, It is arranged in a manner of the position of the position of the seam of third thermal insulation layer 113 and the seam of second thermal insulation layer 112 is staggered intentionally true Empty heat insulating component 20A.

(embodiment 2)

In the above embodiment 1, structure is：Heat insulating structure body 105 includes first thermal insulation layer 111 and second thermal insulation layer 112 and further include these first thermal insulation layers 111 and 112 integrated position of second thermal insulation layer (integrated layer 33), but at this Structure in embodiment 2 is that first thermal insulation layer 111 and second thermal insulation layer 112 are completely independent layer, does not include integrated layer 33.In present embodiment 2, the heat insulating structure body 105 of this structure is illustrated with reference to Fig. 6~Fig. 9.

Specifically, as shown in fig. 6, being constituted by arranging multiple foaming body thermal insulation board 30B in the outside of container casing 110 First thermal insulation layer 111, it is heat-insulated by arranging multiple foaming body thermal insulation board 30B compositions second in the outside of the first thermal insulation layer 111 Layer 112 constitutes third thermal insulation layer 113 by arranging multiple vacuum heat-insulation component 20A in the outside of the second thermal insulation layer 112.Separately Outside, same as the above embodiment 1, the seam of first thermal insulation layer 111 and seam, that is, foaming body of second thermal insulation layer 112 are heat-insulated Filling with insulation material 14 is filled between the mutual docking sites plate 30B, in seam, that is, vacuum heat-insulation structure of third thermal insulation layer 113 Filling with insulation material 15 is filled between the mutual docking sites part 20A.

The sealing 24 of the fin-shaped of vacuum heat-insulation component 20A is same as the above embodiment 1, is configured to fold into and arrives conduct The inside of more low temperature side.Therefore, sealing 24 is located at the main body of vacuum heat-insulation component 20A and the hair for constituting second thermal insulation layer 112 Between foam thermal insulation board 30B.In addition, first thermal insulation layer 111, second thermal insulation layer 112 and third same as the above embodiment 1 Thermal insulation layer 113 is fixed on container casing 110 using the secure component 13 being made of bolt 13a and nut 13b.In addition, foaming body The basic structure of thermal insulation board 30B is identical as the foaming body thermal insulation board 30A illustrated in the above embodiment 1, therefore the description thereof will be omitted.

Like this, in the present embodiment, first thermal insulation layer 111 and second thermal insulation layer 112 are configured to be completely independent separation Thermal insulation layer.Therefore, it forms air layer between these thermal insulation layers and keeps the continuity on substance isolated.Container is come from as a result, The cold temperature of shell 110 is blocked by dual inside thermal insulation layer (first thermal insulation layer 111 and second thermal insulation layer 112), so can have Effect inhibits the leakage of cold temperature.The result is that the heat-proof quality of vacuum heat-insulation component 20A can be efficiently used, and can ensure heat-insulated The whole good heat-proof quality of structure 105.

In addition, in the present embodiment, the position of the seam of first thermal insulation layer 111, the seam of second thermal insulation layer 112 position It sets different with the position of the seam of third thermal insulation layer 113.Specifically, when imagining the Inside To Outside from container casing 110 When making perspective view, the seam (the mutual docking sites vacuum heat-insulation component 20A) of the third thermal insulation layer 113 in outside not with inside The position of the seam (the mutual docking sites foaming body thermal insulation board 30B) of second thermal insulation layer 112 is overlapped and is staggered, second thermal insulation layer 112 seam is not heavy with the position of the seam of the first thermal insulation layer of inside 111 (the mutual docking sites foaming body thermal insulation board 30B) It folds and is staggered.Alternatively, can also be expressed as：The mutual docking sites vacuum heat-insulation component 20A are located at from composition second thermal insulation layer The position being staggered on the extended line of the 112 mutual docking sites foaming body thermal insulation board 30B constitutes the hair of second thermal insulation layer 112 The mutual docking sites thermal insulation board 30B are steeped to be located at from the mutual docking sections foaming body thermal insulation board 30B for constituting first thermal insulation layer 111 The position being staggered on the extended line of position.

Herein, in structure shown in fig. 6, first thermal insulation layer 111 and second thermal insulation layer 112 are heat-insulated by foaming body of the same race Plate 30B is constituted, but can also as shown in fig. 7, constitute the thermal insulation board of first thermal insulation layer 111 and constitute second thermal insulation layer 112 every Hot plate is not of the same race.For example, in structure shown in Fig. 7, the thermal insulation board of composition first thermal insulation layer 111 same as Fig. 6 is foaming The foaming body thermal insulation board 30B of styrene (especially EPS) system, but the thermal insulation board for constituting second thermal insulation layer 112 is polyurethane foam The foaming body thermal insulation board 30C of system.

The foaming body thermal insulation board of the thermal conductivity ratio foamed styrene of the foaming body thermal insulation board 30C of polyurethane foam The pyroconductivity of 30B is low, so the heat-proof quality of second thermal insulation layer 112 is improved than first thermal insulation layer 111.It is heat-insulated as a result, Superior thermal insulation layer is located at outside on the inside of performance ratio, so the first thermal insulation layer 111 of inside is by the second thermal insulation layer 112 in outside It is heat-insulated well.

Accordingly, there exist the atmosphere temperatures in the region of first thermal insulation layer 111 effectively to be kept by second thermal insulation layer 112, so the The low-temperature condition of one thermal insulation layer 111 is well kept, and the cold temperature from container casing 110 can effectively be inhibited to leak into outside. Moreover, at this point, the seam of first thermal insulation layer 111 is configured the foaming body thermal insulation board 30C covering of second thermal insulation layer 112, so Cold temperature can be effectively inhibited to be leaked from seam.

In addition, first thermal insulation layer 111 is heat-insulated well by second thermal insulation layer 112, the thermal insulation of inside thermal insulation layer is improved Energy.The medial surface of vacuum heat-insulation component 20A can be also inhibited to be exposed on the misgivings of more low temperature as a result,.Thus, it is also possible to effectively Inhibit the buckling deformation of vacuum heat-insulation component 20A either as embrittlement of the external cladding material of medial surface 22 (or damaged) etc.. The result is that the reliability of heat insulating structure body 105 can be improved.

In addition, the heat-proof quality of second thermal insulation layer 112 do not have to it is more significantly excellent than the heat-proof quality of first thermal insulation layer 111, It can be equal extent.Therefore, second thermal insulation layer 112 has the heat-proof quality on an equal basis or more than it with first thermal insulation layer 111 .Therefore, the thermal insulation board for second thermal insulation layer 112 be not necessarily to be with the thermal insulation board for first thermal insulation layer 111 centainly It is not of the same race.In addition, the thermal insulation board for second thermal insulation layer 112 and the thermal insulation board for first thermal insulation layer 111 can be of the same race Material, but for example also can be by keeping expansion density different, improving heat-proof quality.

In addition, in the present embodiment, it can also be as shown in figure 8, vacuum heat-insulation component 20A be to utilize secure component 13 Mechanical fasteners, but it is adhesively secured to foaming body thermal insulation board 30A's using well known bonding agent 16.In addition, bonding agent 16 Type and bonding site etc. are same as the variation of the above embodiment 1 (with reference to Fig. 5).

In addition, in the present embodiment, can also as shown in figure 9, first thermal insulation layer 111 and second thermal insulation layer 112 it Between, and metal mesh 17 is set between second thermal insulation layer 112 and third thermal insulation layer 113.The metal mesh 17 is between thermal insulation layer It plays a role as the component for supporting secure component 13, in the configuration shown in fig. 9, by the way that the spiral shell of metal mesh 17 will be penetrated through Bolt 13a is fastened to the nut 13b for being fixed in container casing 110, to fix foaming body thermal insulation board 30B and vacuum heat-insulation component 20A. In addition, in the case of metal mesh 17 are arranged between each thermal insulation layer, bolt 13a can not also penetrate through vacuum heat-insulation component 20A, and Between adjacent vacuum heat-insulation component 20A (between docking site).

In addition, in the present embodiment, the end face (side of docking site) of the edge of foaming body thermal insulation board 30B is flat Face, however, the present invention is not limited thereto can also be as the foaming body thermal insulation board 30A illustrated in the above embodiment 1, for platform The edge of scale.In this case, the mutual docking sites foaming body thermal insulation board 30B are the multilayered structures of four layers of part or more, Cold temperature further can be effectively inhibited to be leaked from seam.

(embodiment 3)

The vacuum heat-insulation component 20A used in the above embodiment 1 or 2 uses in outer side with medial surface mutually isostructural External cladding material 22, however, the present invention is not limited thereto, such as shown in Figure 10, can also be configured to, it is constituted in external cladding material 22 The Heat pretreatment of the inside external cladding material of medial surface is higher than the outside external cladding material for constituting lateral surface.In present embodiment 3 In, the vacuum heat-insulation component 20B of 0 pair of this structure is illustrated referring to Fig.1.

For example, vacuum heat-insulation component 20B shown in Fig. 10 substantially with the vacuum heat-insulation structure that illustrates in the above embodiment 1 Part 20A same (with reference to Fig. 3), the laminates 220 illustrated in the outside laminates 220A of upside and the above embodiment 1 in figure are same Sample is the hot welding layer 223 of the sealer 221 of nylon membrane, the gas barrier layer 222 of aluminium foil, low density polyethylene films Three-decker.

Unlike this, in figure in the inside laminates 220B of downside, sealer 221 and hot welding layer 223 and outside Laminates 220A is identical, but uses the Heat pretreatment gas barrier layer 226 that is made of aluminium-vapour deposition layer to substitute the gas barrier layer of aluminium foil 222.Alternatively, although not shown, inside laminates 220B can also be by the structure of 222 multiple stratification of gas barrier layer of aluminium foil.

Though the medial surface of vacuum heat-insulation component 20A is provided on the inside of foaming body thermal insulation board 30A or foaming body thermal insulation board 30B etc. Thermal insulation layer, but influenced by the low-down cold temperature of container casing 110.Then, the inside laminates 220B of medial surface is constituted (inside external cladding material) is configured to outside laminates 220A (outside external cladding material) of its Heat pretreatment than constituting lateral surface It is high.For example, aluminium-vapour deposition layer or the aluminium foil of multiple stratification are compared with the aluminium foil of single layer, Heat pretreatment is more excellent.Inside outsourcing as a result, The Heat pretreatment for covering material improves, so can inhibit the embrittlement of the medial surface of vacuum heat-insulation component 20B well.

In addition, the aluminium foil of single layer is cheap compared with aluminium-vapour deposition layer, compared with the aluminium foil of multiple stratification, the aluminium foil of single layer can be by Less material is formed.So outside external cladding material can be made of or the material more cheap than inside external cladding material by few The material of amount is constituted.Therefore, it is possible to effectively inhibit vacuum heat-insulation component 20B manufacturing cost increase.

In addition, aluminium-vapour deposition layer or the aluminium foil of multiple stratification are compared with the aluminium foil of single layer, heat-proof quality is also high.Therefore, vacuum every In hot component 20B, the heat-proof quality of medial surface can be improved, so the whole heat-proof quality of heat insulating structure body 105 can be improved.

(embodiment 4)

In the above embodiment 1 or 2, third thermal insulation layer 113 is made of the vacuum heat-insulation component 20A of single layer, but this hair It is bright without being limited thereto, such as shown in figure 11, can also be made of two layers or more of vacuum heat-insulation component 20A.In present embodiment 4 In, the heat insulating structure body 105 of 1 pair of this structure illustrates referring to Fig.1.

In structure shown in Figure 11, first thermal insulation layer 111 and second thermal insulation layer 112 are with the above embodiment 2 equally by sending out Foam thermal insulation board 30B is constituted, and third thermal insulation layer 113 is also equally made of vacuum heat-insulation component 20A with the above embodiment 1 or 2 (with reference to Fig. 6), but it is different from the above embodiment 2, and the layer of vacuum heat-insulation component 20A is configured to two layers.

In this configuration, the vacuum heat-insulation component 20A of the vacuum heat-insulation component 20A of the second layer and first layer is staggered row Row, so the mutual docking sites vacuum heat-insulation component 20A of first layer and the vacuum heat-insulation component 20A of the second layer are mutual right Socket part position is not overlapped in position.Thereby, it is possible to inhibit cold temperature to be leaked from the mutual docking sites vacuum heat-insulation component 20A, and And extraneous air can be inhibited via the heat transfer of docking site.Thereby, it is possible to reduce the thermophoresis inside and outside container casing 110, and And it can effectively keep that there are the atmosphere temperature in the region of inside thermal insulation layer (first thermal insulation layer 111 and second thermal insulation layer 112), institutes The whole heat-proof quality of heat insulating structure body 105 can be further increased.

In addition, in the present embodiment, third thermal insulation layer 113 uses the vacuum heat-insulation structure illustrated in the above embodiment 1 Part 20A, but can also instead of use the vacuum heat-insulation component 20B illustrated in the above embodiment 3.In addition, third thermal insulation layer 113 It can also be the multilayered structure for the vacuum heat-insulation component 20A (or vacuum heat-insulation component 20B) for being laminated with three layers or more.

(embodiment 5)

In the above embodiment 1,2 or 4, heat insulating structure body 105 is by first thermal insulation layer 111, second thermal insulation layer 112 and Three thermal insulation layers 113 are constituted, and however, the present invention is not limited thereto can also be as shown in figure 12, and heat insulating structure body 105 includes the 4th thermal insulation layer 114.In present embodiment 5, the heat insulating structure body 105 of 2 pairs of this structures illustrates referring to Fig.1.

In structure shown in Figure 12, first thermal insulation layer 111 and second thermal insulation layer 112 are with the above embodiment 2 equally by sending out Foam thermal insulation board 30B is constituted, and third thermal insulation layer 113 is also equally made of vacuum heat-insulation component 20A with the above embodiment 1 or 2 (with reference to Fig. 6), but in the outside of the third thermal insulation layer 113, foaming body thermal insulation board 30D is also provided with the 4th thermal insulation layer 114. The seam of 4th thermal insulation layer 114, that is, mutual docking sites foaming body thermal insulation board 30D do not connect with the third thermal insulation layer 113 of inside The position of seam is overlapped and is staggered.

In addition, the concrete structure of foaming body thermal insulation board 30D is not particularly limited, it can be by example in the above embodiment 1 or 2 The same material of foaming body thermal insulation board 30A or 30B shown is constituted.In addition, in the above embodiment 2 illustrated by Fig. 7 Like that, first thermal insulation layer 111, second thermal insulation layer 112 and the 4th thermal insulation layer 114 can also be by the thermal insulation board structures of variant material At.

By the way that the 4th thermal insulation layer 114 is arranged in the outside of third thermal insulation layer 113, cold temperature can be inhibited from vacuum heat-insulation component The mutual docking site leakages of 20A, and can also inhibit extraneous air via the mutual docking sites vacuum heat-insulation component 20A Heat transfer.Thereby, it is possible to reduce the thermophoresis inside and outside container casing 110, and it can effectively keep that there are inside thermal insulation layers ( One thermal insulation layer 111 and second thermal insulation layer 112) region atmosphere temperature, so it is whole to further increase heat insulating structure body 105 The heat-proof quality of body.

In addition, be the structure that there is the 4th thermal insulation layer 114 in the outside of third thermal insulation layer 113 in the present embodiment, but Can also have the 5th thermal insulation layer etc., further outside thermal insulation layer.In addition, third thermal insulation layer 113 uses the above embodiment 1 The vacuum heat-insulation component 20A of middle explanation, but can also instead of use the vacuum heat-insulation component 20B illustrated in the above embodiment 3. Alternatively, it is also possible to alternately laminated foaming body thermal insulation board 30B (or foaming body thermal insulation board 30A) heat-barrier material and utilize vacuum heat-insulation The thermal insulation layer of component 20A.

In addition, first thermal insulation layer 111 or second thermal insulation layer 112 or both of which can be multilayer structured.In other words, if The inside thermal insulation layer between third thermal insulation layer 113 and container casing 110 is set either two layers (first thermal insulation layer 111 and Two thermal insulation layers 112), can also be three layers or more.In addition, outside thermal insulation layer is also not necessarily limited to only by vacuum heat-insulation component 20A structures At third thermal insulation layer 113, can also be multilayer structured.

(embodiment 6)

In present embodiment 6,3A~Figure 17, illustrates and can be applied to the above embodiment 1~5 referring to Fig.1, and With the vacuum heat-insulation component 20C for inhibiting or preventing the blast resistance construction drastically deformed.

[the vacuum heat-insulation component with blast resistance construction]

The vacuum heat-insulation component 20C of present embodiment be with the vacuum heat-insulation component 20A illustrated in the above embodiment 1 or The same structures of vacuum heat-insulation component 20B illustrated in the above embodiment 3, as shown in FIG. 13A, including core material 21, outsourcing Cover material (overcoating part) 22 and adsorbent 23.Core material 21 is the component for the threadiness being made of mineral-type materials, closed to depressurize State (substantial vacuum state) encloses the inside of external cladding material 22.External cladding material 22 is the bag-shaped portion for having gas barrier property Part makes to be sealed by sealing 24 around it, to become by keeping the laminates 220 of two panels opposite in the present embodiment It is bag-shaped.

The fiber (inorganic fiber) that core material 21 is made of mineral-type materials is constituted.Specifically, can for example arrange Lift glass fibre, ceramic fibre, slag wool fiber, rock wool fibers etc..In addition, core material 21 is preferably shaped to plate, so in addition to this Other than a little inorganic fibers, well known adhesive material, powder etc. can also be contained.These materials contribute to core material 21 intensity, The raising of the physical property of uniformity, rigidity etc..

In addition, as core material 21, the well known fiber other than inorganic fiber can also be used, but in present embodiment In, as the inorganic fiber that glass fibre etc. is representative, use glass of avarage fiber diameter in the range of 4 μm~10 μm This glass fibre is further fired and is used as core material 21 by glass fiber (the thicker glass fibre of fibre diameter).

Like this, it if core material 21 is inorganic fiber, can reduce in the inside of vacuum heat-insulation component 20C from core material 21 ingredient releases the reduction of the vacuum degree caused by residual gas.Moreover, if core material 21 is inorganic fiber, core material 21 Water imbibition (hygroscopicity) declines, so being able to maintain that the amount of moisture of the inside of vacuum heat-insulation component 20C is relatively low.

In addition, due to firing inorganic fiber, even external cladding material 22 leads to broken bag or breakage, core because of certain influence Material 21 will not expand very big, can keep the shape as vacuum heat-insulation component 20C.Specifically, not firing nothing for example When sealing as core material 21 to machine fiber, although expansion when broken bag can reach broken bag different according to various conditions Preceding 2~3 times.Unlike this, by firing inorganic fiber, expansion when can be by broken bag inhibits within 1.5 times.Cause This can effectively inhibit expansion when broken bag or breakage, carry by implementing firing processing to the inorganic fiber for being used as core material 21 The size retentivity of high vacuum insulation component 20C.

In addition, the firing condition of inorganic fiber is not particularly limited, well known various conditions can be suitably used.Separately Outside, the firing of inorganic fiber is particularly preferred processing in the present invention, but is not essential processing.

Laminates 220 are to be sequentially laminated with sealer 221, gas barrier layer 222 and hot welding layer in the present embodiment 223 three layers of structure.Sealer 221 is the resin layer of the outer surface for protecting vacuum heat-insulation component 20C, such as profit The resin film well known to nylon membrane, polyethylene terephthalate film, polypropylene screen etc., but be not particularly limited.Surface is protected Sheath 221 both can be only made of a kind of film, and multiple films can also be laminated and constitute.

Gas barrier layer 222 be for prevent extraneous air enter vacuum heat-insulation component 20C inside layer, can be preferably Utilize the well known film with gas barrier property.As the film with gas barrier property, such as aluminium foil, copper foil, stainless steel foil can be enumerated etc. Metal foil, the evaporation film to metal or metal oxide have been deposited as the resin film of base material, to the surface of the evaporation film in turn Implement the film etc. of well known coating processing, but is not particularly limited.As the base material for evaporation film, can enumerate poly- to benzene two Formic acid glycol ester film or ethylene vinyl alcohol copolymer film etc. can enumerate aluminium, copper, oxidation as metal or metal oxide Aluminium, silica etc., but be not particularly limited.

Hot welding layer 223 is the layer for making laminates 220 be bonded opposite to each other, and also as protection gas barrier layer 222 The layer on surface play a role.That is, the face (outer surface) of a side of gas barrier layer 222 is protected by sealer 221, but another party Face (inner surface, the back side) be heating-fusion bonded layer 223 protection.It is sealed with core material 21 and absorption in the inside of vacuum heat-insulation component 20C Agent 23, so these influences of internal object to gas barrier layer 222 can be heating-fusion bonded layer 223 and prevent or inhibit.As hot melt The film that the thermoplastic resin such as low density polyethylene (LDPE) is constituted can be enumerated by connecing layer 223, but is not particularly limited.

In addition, laminates 220 can also include the layer other than sealer 221, gas barrier layer 222 and hot welding layer 223. In addition, gas barrier layer 222 and hot welding layer 223 are same as sealer 221, both can be only made of a kind of film, it can also layer It folds multiple films and constitutes.That is, as long as laminates 220 meet following condition, concrete structure is not particularly limited：One opposite The face of a side is hot welding layer 223 in (positive and negative)；And in multilayered structure have gas barrier layer 222 (or in multilayered structure appoint One layer has gas barrier property).

In the present embodiment, laminates 220 make week in the state of so that hot welding layer 223 is configured two panels relative to one another Most of thermal welding of edge, to be formed as bag-shaped external cladding material 22.Specifically, for example, as shown in figure 14, A part (tops of the Figure 14 to left side of face) for the peripheral part of laminates 220 is left as opening portion 25, it will be in addition to opening portion The rest part of peripheral part except 25 carries out thermal welding i.e. in a manner of surrounding center portion (part that core material 21 is contained) It can.

Adsorbent 23 is adsorbed and removed after the inner pressure relief sealing core material 21 of external cladding material 22 from the fine of core material 21 The residual gas (also include vapor) of the releasings such as gap, from the extraneous air of the indivisible entrance such as sealing 24 (also include water Steam).The specific type of adsorbent 23 is not particularly limited, but it includes known in zeolite, calcium oxide, silica gel etc. to be preferably able to use Material.

Herein, adsorbent 23 does not preferably have the adsorbent of physisorption instead of, with chemisorption Adsorbent (chemisorption type), adsorbent 23 are preferably adsorbent (the non-heat generation that will not be generated heat by the absorption of residual gas Material), preferably non-automatic incombustible material.

In the present embodiment, it includes powdered ZSM-5 that can be used in well known packing timber as adsorbent 23 The adsorbent of type zeolite.As long as ZSM-5 type zeolites are powdered, surface area increases, so gas sorption ability can be improved.

In addition, from the viewpoint of improving the N2 adsorption characteristic under room temperature, particularly preferably used in ZSM-5 type zeolites At least 50% or more copper position is one price of copper in the copper position of ZSM-5 type zeolites, and at least 50% or more is coordination in one price of copper The ZSM-5 type zeolites of one price of copper of three oxygen.Like this, ZSM-5 types zeolite is the copper monovalence bit rate for improving three oxygen of coordination When zeolite, the adsorbance of the air under decompression can be greatly improved.

In addition, the adsorbent with chemisorption when ZSM-5 type zeolites.Thus, for example even if temperature occurs The various environment risen etc will be because, may make any difference to adsorbent 23, also can substantially prevent from once adsorbing Gas is released again.Therefore, in the case where handling combustible fuel etc., though because certain influence adsorbent 23 adsorbed it is flammable Property gas, will not be because relaying out gas under the influence of temperature rise later etc..The result is that can further increase vacuum every The explosion-proof of hot component 20C.

In addition, ZSM-5 type zeolites are non-flame properties adsorbents, so the adsorbent 23 of present embodiment is substantially only It is made of non-automatic incombustible material.Therefore, including core material 21, combustible material is not used in the inside of vacuum heat-insulation component 20C, Explosion-proof can be further increased.As the adsorbent of inorganic, such as lithium (Li) can be enumerated etc., but lithium is flammable Material.Moreover, in the present embodiment, the purposes as vacuum heat-insulation component 20C instantiates the 101 (reference of spherical tank of LNG Embodiment 1 and Figure 1A, Figure 1B).Therefore, once this combustible material is used as adsorbent 23, even if assuming to be unlikely to draw Huge explosion is played, but self-evident, is also unsuitable for the container of combustible fuels such as processing LNG etc..

As described above, if adsorbent 23 is chemisorption type, compared with physisorption type, the residual gas of absorption is not It can be easily separated from, so the vacuum degree of the inside of vacuum heat-insulation component 20C can be kept well.Moreover, residual gas will not It flees from so can effectively prevent in the inside of external cladding material 22 because residual gas expansion causes vacuum heat-insulation component 20C to deform Misgivings.Therefore, it is possible to improve the explosion-proof and stability of vacuum heat-insulation component 20C.

In addition, if adsorbent 23 is non-heat generation material or non-automatic incombustible material or meets the material of the two, i.e., Just damage of external cladding material 22 etc. causes foreign matter to enter inside, the misgivings that can also avoid adsorbent 23 from generating heat or burn.Therefore, The explosion-proof and stability of vacuum heat-insulation component 20C can be improved.

In addition, as described above, as adsorbent 23, preferably by chemisorption type, the non-cause of residual gas chemisorption The absorption of residual gas cause fever non-heat generation or chemisorption type and non-heat generation structure, but the structure with it is aftermentioned Vacuum heat-insulation component 20C blast resistance construction configuration example 2 correspond to.

The specific manufacturing method of vacuum heat-insulation component 20C is not particularly limited, and appropriate can use well known making Method.It in the present embodiment, as described above, will in a manner of forming opening portion 25 overlapping the laminates 220 of two panels Peripheral part thermal welding, to obtain bag-shaped external cladding material 22.Therefore, as shown in figure 14, from opening portion 25 to outer cladding material Core material 21 and adsorbent 23 are inserted into the inside of material 22, such as are depressurized in the pressure regulating equipments such as decompression chamber.As a result, from opening It is fully depressurized and becomes substantial vacuum state in the inside (inside bag) in portion 25, bag-shaped external cladding material 22.

Then, same as other peripheral parts, opening portion 25 can obtain vacuum heat-insulation also by thermal welding hermetic seal Component 20C.In addition, each condition such as thermal welding, decompression is not particularly limited, well known various conditions can be suitably used.In addition, External cladding material 22 is not limited to the structure of the laminates 220 using two panels.Such as 220 half of a piece of laminates can also be rolled over It is curved, by the side edge part thermal welding of two sides, it will be able to obtain the bag-shaped external cladding material 22 with opening portion 25.Or it can also Laminates 220 are configured to tubular, seal the opening portion of a side.

Either which kind of, in the present embodiment, external cladding material 22, for opening portion 25, have its inner surface be The opening portion 25 of hot welding layer 223.As a result, by carrying out thermal welding in the state that hot welding layer 223 is in contact with each other, It being capable of sealed opening portion 25.It therefore, can be inside hermetic bag as long as the sealed opening portion 25 after decompression.

Sealing 24 obtained from peripheral part thermal welding by external cladding material 22, as shown in FIG. 13A, as long as being opposite Hot welding layer 223 each other welding and form the structure at welding position.Herein, in the present embodiment, sealing 24 As shown in Figure 13 B, preferably at least include multiple thinner wall sections 241, more preferably include thick wall portion 242.Thinner wall section 241 is and is It overlaps and the thickness of the hot welding layer 223 position smaller compared to the thickness at 223 mutual welding position of hot welding layer, and it is thick Wall portion 242 is the larger position of the thickness at 223 mutual welding position of hot welding layer.Sealing 24 includes at least thinner wall section 241, To which extraneous air etc. is more difficult to enter the inside of vacuum heat-insulation component 20C from sealing 24.

In the peripheral part of external cladding material 22, expose the minimum end face for having hot welding layer 223, therefore extraneous air is possible to Entered by sealing 24.The gas barrier layer 222 of external cladding material 22 can not separate the entrance of extraneous air completely, but with heat Welding layer 223 is compared, and the permeability of gas (containing water vapor) is extremely low.Therefore, into the outside of the inside of vacuum heat-insulation component 20C The major part of air, which can be considered as, has passed through sealing 24.

As long as sealing 24 includes thinner wall section 241, it will be able to increase the extraneous air entered from the end face of hot welding layer 223 Penetrate resistance.Therefore, it is possible to effectively inhibit the entrance of extraneous air, and the inside of external cladding material 22 can be lowered into Extraneous air expansion cause vacuum heat-insulation component 20C deform possibility.In addition, as shown in Figure 13 B, as long as with thinner wall section 241 mode between thick wall portion 242 is alternately arranged thick wall portion 242 and thinner wall section 241, it will be able to improve the strong of sealing 24 Degree, and effectively inhibit thinner wall section 241 as the heat transfer between the gas barrier layer 222 caused by heat bridge (heat bridge).

In addition, the forming method etc. of the sealing 24 comprising multiple thinner wall sections 241 and thick wall portion 242 is not particularly limited. Representative forming method can enumerate method disclosed in patent document 1.In addition, the number of thinner wall section 241 and thick wall portion 242 It is not particularly limited, although different according to the width of the peripheral part as sealing 24, thinner wall section 241 is 4~6 and is It can.

[concrete structure of blast resistance construction]

The vacuum heat-insulation component 20C of present embodiment has to be pressed down when the internal residual gas expansion in external cladding material 22 Make or prevent the blast resistance construction of vacuum heat-insulation component 20C drastically deformed.Specific blast resistance construction is not particularly limited, but generation Table, such as can be listed below：Configuration example 1：The foamed resin layer 11 of cladding vacuum heat-insulation component 20C is formed as foaming The structure of organic foaming agent is not remained afterwards；Configuration example 2：It is sealing into the suction of the inside of external cladding material 22 together with core material 21 Attached dose 23 for chemisorption residual gas chemisorption type or will not cause because of the absorption of residual gas generate heat non-heat generation Or the structure of chemisorption type and non-heat generation；Or configuration example 3：External cladding material 22 is outer with making residual gas be discharged into Mitigate the structure etc. of the expansion easing portion of expansion in portion.

Configuration example 1 illustrates together with the variation of aftermentioned vacuum heat-insulation panels.In addition, configuration example 2 be equivalent to it is above-mentioned 23 preferred example of adsorbent, so omit illustrate.The expansion easing portion of configuration example 3 is specifically described below. The concrete structure of expansion easing portion is not particularly limited, but typically, can enumerate check-valves shown in Figure 15 and Figure 16 Intensity shown in 26A, 26B or Figure 17 declines position 243.

For example, there is closing the valve opening 260 in a part for external cladding material 22 is arranged by check-valves 26A shown in figure 15 The structure of hat shape.Valve opening 260 is arranged to penetrate through the inside and outside of external cladding material 22, and the check-valves 26A of hat shape is by the elastic material such as rubber Material is constituted.In general, valve opening 260 is closed by check-valves 26A, so substantially preventing extraneous air from entering the interior of external cladding material 22 Portion.Even if because of check-valves if shrinking, change with the internal diameter of this valve opening 260 because of the temperature change external cladding material 22 of surrounding 26A is made of elastic material, therefore still is able to close valve opening 260 well.Just in case residual gas is in external cladding material 22 In the case that portion expands, with the rising of internal pressure, check-valves 26A is easy to disengage from valve opening 260, so that residual gas is discharged into outer Portion.

In addition, check-valves 26B as shown in figure 16 is cut-in portion 261 of the closing formation in a part for outer covering material 22 Structure valve shape structure.Specifically, check-valves 26B includes：The outside left 262 that plays a role as valve body, as valve Adhesive linkage 264 of the inside line 263 and bonding that seat plays a role not make outside left 262 be removed from inside line 263.Outside Side 262 is a part for the external cladding material 22 in a manner of covering and be formed on the cut-in portion 261 of external cladding material 22 The shape of band-like extension.Inside line 263 is a part for the external cladding material 22 adjacent with cut-in portion 261, with outside left 262 overlap.

It is seated at the inside line 263 as valve seat usually as the outside left 262 of valve body, is closed as valve opening Cut-in portion 261.At this point, band-like outside left 262 is Nian Jie with inside line 263 by adhesive linkage 264, so can avoid outer Side 262 is rolled-up, and can maintain stable seating condition (closed state).Substantially it can prevent extraneous air from entering as a result, The inside of external cladding material 22.Just in case in the internal residual gas expansion of external cladding material 22, adhesive linkage 264 is mildly bonded Outside left 262 and inside line 263, so with the rising of internal pressure, the outside left 262 as valve body is easy to from conduct The inside line 263 of valve seat is rolled.Internal residual gas is discharged into outside as a result,.

In addition, intensity sloping portion 243 shown in Figure 17 is the 223 mutual welding position of hot welding layer in sealing 24 The small position of the welding area of 240 part.In Figure 17, in schematic property plan view and upper and lower partial cross-sectional view, melt Socket part position 240 is shown as the region of blacking.In the sealing 24 of standard, as shown in the partial cross-sectional view of the top of Figure 17, melt Socket part position 240 is formed in a manner of throughout 24 entirety of sealing.On the other hand, intensity declines in position 243, such as the lower section of Figure 17 Partial cross-sectional view shown in, the inside (21 side of core material) of sealing 24 is not fused, so welding area is sealed than other Portion 24 is small.

Intensity declines the part that position 243 is the welding position 240 of sealing 24, so external cladding material 22 will be used as Laminates 220 overlap each other sealing.Therefore, extraneous air cannot substantially enter from sealing 24 in external cladding material 22 Portion.Just in case in the internal residual gas expansion of external cladding material 22, pressure caused by the rising of internal pressure is easy to concentrate on intensity Decline position 243.The hot welding layer 223 for constituting welding position 240 as a result, is removed each other, and residual gas is discharged into outside.

Herein, intensity declines position, is not limited to intensity decline position 243 as shown in figure 17 and locally reduces welding like that The structure of the welding area at position 240, even if welding area is identical, as long as also can partly reduce the structure of heat seal strength i.e. It can.For example, when heat welded hot welding layer 223 that at this point, only the heat that is applied of a part is reduced, make welding position The degree of 240 welding is weaker.It can also be arranged in 240 grades of welding position hot welding layer 223 alternatively, intensity declines position Other than mutual welding position.For example, it is also possible to be formed between the hot welding layer 223 and gas barrier layer 222 for constituting laminates 220 The position of stacking strength is locally reduced, and declines position as intensity.

Alternatively, it is also possible to use the heat seal strength compared with other positions low the material of a part for hot welding layer 223 Material forms intensity and declines position.For example, as hot welding layer 223, as described above, it is preferred to low density polyethylene (LDPE) can be used, But a part for hot welding layer 223 can also use high density polyethylene (HDPE), ethylene-vinyl alcohol copolymer or amorphous poly- to benzene Naphthalate etc..The heat seal strength of these high molecular materials is lower than low density polyethylene (LDPE), so can be preferred for strong Degree declines the formation at position.

Alternatively, declining the forming method at position as intensity, can also use locally makes hot welding layer 223 mutual molten The thickness of socket part position 240 reduces, adhesive strength is arranged in the part in the region as welding position 240 of hot welding layer 223 Small bonding agent, the region as sealing 24 of laminates 220 locally remove hot welding layer 223 by gas barrier layer 222 that The structure of this direct thermal welding.

In the present embodiment, vacuum heat-insulation component 20C is arranged at third thermal insulation layer 113 (or outside thermal insulation layer), so Just in case whens accident etc. occurs, vacuum heat-insulation component 20C is possible to be exposed to harsh environment.In this case, it is possible to because true Empty heat insulating component 20C, which is exposed to harsh environment, leads to internal residual gas expansion etc..Unlike this, when vacuum heat insulating component When 20C has expansion easing portion as described above, it is located at outermost vacuum heat-insulation component 20C even when exposed to harsh environment In lead to internal residual gas expansion, also can effectively avoid the deformation of vacuum heat-insulation component 20C.Therefore, vacuum heat-insulation structure The explosion-proof and stability of part 20C, which accesses, to be further increased.

(embodiment 7)

In the above embodiment 1~6, in third thermal insulation layer 113, used vacuum heat-insulation component 20A, 20B or 20C, however, the present invention is not limited thereto, can also vacuum heat-insulation component 20A~20C itself be configured to thermal insulation board.In present embodiment 7 In, 8A, Figure 18 B, Figure 19 A, Figure 19 B referring to Fig.1, to the vacuum heat-insulation component 20C thermal insulation boards that will illustrate in the above embodiment 6 The structure of change is specifically described.

[vacuum heat-insulation panels]

In the present invention, above-mentioned vacuum can be utilized as the vacuum heat-insulation panels 10 that third thermal insulation layer 113 uses Heat insulating component 20C (or vacuum heat-insulation component 20A, 20B) is constituted.Specifically, as shown in Figure 18 A and Figure 18 B, vacuum heat-insulation structure Part plate 10 is obtained using the external cladding material 22 of the cladding vacuum heat-insulation component 20C completely of foamed resin layer 11.

The Foamex well known to polyurethane or polystyrene etc. of foamed resin layer 11 is constituted, but preferably poly- by containing The styrene resin composition of styrene is constituted.Signified styrene resin composition is contained as resin component herein Polystyrene or styrene copolymer.Polystyrene is the polymer for only obtaining styrene as monomer polymerization, As styrene copolymer, either by compound (the phenylethylene chemical combination with chemical constitution same as styrene Object) polymer as monomer polymerization, it can also be the copolymer for being copolymerized a variety of styrene compounds, can also be The copolymer that styrene compound (containing styrene) is obtained with other monomers copolymer compound.

Herein, as polymerization species compound, other than styrene, additionally it is possible to enumerate：O- methyl styrenes, m- methyl Styrene, p- methyl styrenes, α-methylstyrene, vinyltoluene, t- butyl toluenes, divinylbenzene etc., but do not have Especially limitation.In addition, as long as styrene copolymer uses styrene compound (containing styrene) as monomer component Polymer, so as described above, can also but in general containing the monomeric compound other than styrene compound, In all monomer components, styrene compound contains 50 moles of % or more.Monomer other than styrene compound The specific type of compound is not particularly limited, can it is preferable to use can be with styrene copolymerized well known compound (for example, second The alkenes compounds such as alkene, propylene, butylene, butadiene, 2- methyl-propens).

In addition, as the resin component for styrene resin composition, polystyrene or styrene copolymer (system Referred to as styrene resin) one kind is at least used, but two or more styrene resins can also be used.And conduct Resin component, other than styrene resin, can also and with well known resin, the alkene such as polyolefin or olefin copolymer Resinoid.At this point, in all resin components contained by foamed resin layer 11, styrene resin for 50 weight % or more i.e. It can.

In addition, well known additive can also be contained in styrene resin composition other than resin component.As Additive, specifically, can for example enumerate filler, lubrication prescription, mould release, plasticizer, antioxidant, incombustible agent, ultraviolet light Absorbent, anti-live agent, intensive etc., but be not particularly limited.In addition, being had using following in the formation of foamed resin layer 11 Machine class foaming agent, but in the present specification, organic foaming agent is not comprised in additive described herein.

Styrene resin composition contains well known organic foaming agent as described above.As organic foaming agent, tool The saturation such as can enumerate propane, n- butane, iso-butane, n- pentanes, isopentane, neopentane, pentamethylene, hexane for body Hydrocarbon；The ether compounds such as dimethyl ether, diethyl ether, ethyl methyl ether；Halogenated hydrocarbons such as chloromethanes, dichloromethane, dicholorodifluoromethane etc., but do not have There is special limitation.One kind can be both used only in these organic foaming agents, appropriately combined two or more can also use.They Among particularly preferably use the saturated hydrocarbons such as n- butane.

The forming method of foamed resin layer 11 is not particularly limited, using well known method by styrene resin and other Ingredient and organic foaming agent hybrid modulation styrene resin composition, by obtained styrene resin composition and Vacuum heat-insulation component 20C is accommodated in the shaping mould of vacuum heat-insulation panels 10, makes organic foaming agent foam.At this point, In finishing die, styrene resin composition is filled so that vacuum heat-insulation component 20C is coated to completely using well known method In foamed resin layer 11.

The concrete form of styrene resin composition is not particularly limited, usually expanded beads.That is, Foamex Layer 11 is so-called " pearl method foamed styrene (EPS, Expanded Poly-Styrene) ".In this case, by expanded beads It is accommodated in finishing die with vacuum heat-insulation component 20C, is heated by steam, make organic foaming agent foam.Foamex It when layer 11 is EPS, is heated by steam, the formed body (vacuum heat-insulation panels 10) of expanded beads welding each other can be obtained. In addition, the material that the foamed resin layer 11 as vacuum heat-insulation panels 10 illustrates can also function properly as above-mentioned implementation The material of foaming body thermal insulation board 30A~30D in mode 1~6.

Obtained vacuum heat-insulation panels 10 are interior comprising vacuum in foamed resin layer 11 as shown in Figure 18 A or Figure 18 B The structure of heat insulating component 20C.Thereby, it is possible to protect the surface of vacuum heat-insulation component 20C.In addition, including vacuum heat-insulation component 20C Vacuum heat-insulation panels 10 be manufactured to " formed products ", shape and size can standardize.Therefore, vacuum heat-insulation panels 10 compared with storing the vacuum heat-insulation component 20C of structure of core material 21 in external cladding material 22, can improve conduct " heat-insulated material The dimensional accuracy of material ".

Moreover, in the present invention, heat insulating board 10C be applied to spherical tank 101 etc. as shown in Figure 1A and Figure 1B etc. every In heat container 104, but the surface by protecting vacuum heat-insulation panels 10, heat-insulated container 104 reliability of itself can be improved.

For example, in the present embodiment, vacuum heat-insulation panels 10, as illustrated by above-mentioned Embodiments 1 to 5 etc. that Sample can be used as the third thermal insulation layer 113 of the outside thermal insulation layer as heat-insulated container 104.This is in order to by by heat-proof quality Excellent vacuum heat-insulation component 20C configurations effectively inhibit heat to be externally entering in the outside of heat-insulated container 104.Herein, exist In LNG transfer pots ship 100, connecing for tolerance seawater is required to for the vacuum heat-insulation component 20C positioned at the outside of spherical tank 101 Tactile durability.

The laminates 220 of external cladding material 22 for vacuum heat-insulation component 20C substantially resin system, but gas barrier layer 222 use metal foil or metal deposition film as described above.In general metal one touches seawater and is easy for by contained in seawater The corrosion such as various ions.In the present embodiment, vacuum heat-insulation panels 10 are true using the cladding completely of foamed resin layer 11 The structure of empty heat insulating component 20C, even if can effectively be avoided by foamed resin layer 11 if so seawater is into hull 102 Contact with sea water is to vacuum heat-insulation component 20C.

In addition, vacuum heat-insulation panels 10 are not instead of only made of foamed resin layer 11 as shown in Figure 18 A and Figure 18 B, There is vacuum heat-insulation component 20C in inside, so thermal insulation is very excellent.Therefore, heat-proof quality will not be reduced, additionally it is possible to inhibit The increase of the thickness (or thickness of heat insulating structure body 105) of third thermal insulation layer 113.

Moreover, foamed resin layer 11 protects vacuum heat-insulation component 20C, so being rushed even if applying to vacuum heat-insulation panels 10 It hits, also can effectively inhibit broken bag or breakage of vacuum heat-insulation component 20C etc..Therefore, vacuum heat-insulation panels 10 are not only given The durability of harsh environment when vacuum heat-insulation component 20C is assigned to the foreign matters such as seawater or manufacture etc., additionally it is possible to which imparting is directed to The durability (impact resistance) of physical impact etc..The result is that the reliability of vacuum heat-insulation component 20C can be improved.

In addition, it is preferable to use styrene resin compositions as described above for foamed resin layer 11.In general, EPS and hair It is low compared to water imbibition to steep polyurethane (polyurethane foam) etc., the degradation speed of heat-proof quality is also small.Therefore, with foamed resin layer 11 The case where being made of polyurathamc is compared, and the protective value and heat-proof quality of vacuum heat-insulation component 20C is better.In addition, The external cladding material 22 of vacuum heat-insulation component 20C has above-mentioned sealing 24, therefore vacuum heat-insulation component 20C itself is with good Good durability.Vacuum heat-insulation panels 10 can not only play the durability to seawater as a result, moreover it is possible to be made to spherical tank 101 Various environmental changes when making or when repairing, also play sufficient durability.

[variations of vacuum heat-insulation panels]

Herein, as Figure 18 A schematically shown in, cortex 10a, 10b and vacuum heat-insulation component of vacuum heat-insulation panels 10 The inside of plate 10 is compared, and is compressed cured state in expanded beads.Unlike this, as shown in figure 18b, vacuum heat-insulation panels 10 can also be to remove cortex 10a, 10b to obtain.In other words, vacuum heat-insulation panels 10 can also be and have to remove cortex The structure in the face of 10a, 10b.Thereby, it is possible to remove organic hair from the foamed resin layer 11 of vacuum heat-insulation panels 10 well Infusion.

In general, in EPS formed products, organic foaming agent is left, thermal insulation is better.However, organic foaming The presence of agent is there is a possibility that the above-mentioned leak test accuracy decline using helium.In addition, being remained in vacuum heat-insulation panels 10 When having organic foaming agent, 100 contingency of LNG transfer pots ship has met with accident etc., it is possible to because organic foaming agent influences vacuum The stability of heat insulating component 20C.Then, cortex 10a, 10b of vacuum heat-insulation panels 10 are removed.Expanded beads are densely as a result, Cured position is removed, so can be easy to remove organic foaming agent from foamed resin layer 11.As a result, it is possible to effectively Inhibit the possibility of the internal residual organic foaming agent of EPS formed products.That is, removing and the vacuum heat-insulation structure of cortex 10a, 10b The configuration example 1 of the blast resistance construction of part 20C corresponds to.

In addition, cortex 10a, 10b for being removed are at least cortex 10a (the outer surface cortexes of outer surface (front and back) 10a), the cortex 10b of the side of vacuum heat-insulation panels 10 can also be also removed other than exterior surface cortex 10a.It removes The method of cortex 10a, 10b utilize the excision cortex such as well known cutting machine of cut-out for EPS 10a, 10b.In addition, removing After removing cortex 10a, 10b, the method for removing organic foaming agent is not particularly limited, and uses and is added with set point of temperature and stipulated time Method well known to thermal vacuum heat insulating component plate 10 etc..

Herein, about whether cortex 10a, 10b has been cut off, any surface of foamed resin layer 11 and another table need to only be compared Face can be easy to confirm.Specifically, the inside of cortex 10a, 10b and foamed resin layer 11, density, the expanded beads of expanded beads Each condition such as hardness, surface roughness it is significantly different.Therefore, as long as those skilled in the art, it is sufficient to be able to confirm that foaming The surface of resin layer 11 is the interior layer after cortex 10a, 10b or excision.

In addition, configuration example 1 as blast resistance construction " foamed resin layer 11 of cladding vacuum heat-insulation component 20C is formed as Do not remain the structure of organic foaming agent after expanding " it is not limited only to remove cortex 10a, 10b.In the present embodiment, it foams Resin layer 11 is formed by so that it is foamed the raw material heating containing organic foaming agent, as long as so after expanding being capable of profit Organic foaming agent is removed with well known method, it will be able to realize the configuration example 1 of blast resistance construction.

In addition, as shown in Figure 19 A or Figure 19 B, in vacuum heat-insulation panels 10, vacuum heat-insulation component 20C and foaming are set Lipid layer 11 can also be glued and integrated.Even if thermal insulation board 10 is exposed to high temperature and causes vacuum heat-insulation component 20C hot as a result, Expansion can also inhibit the misgivings that gap is generated between foamed resin layer 11 and vacuum heat-insulation component 20C.It is true therefore, it is possible to improve The durability and stability of empty heat insulating component plate 10.

For example, it can be as shown in Figure 19 A, vacuum heat-insulation component 20C and foamed resin layer 11 are by being coated in vacuum The structure that the bonding agent 12 on the surface of heat insulating component 20C is bonded, or as shown in Figure 19 B, it is used for the stacking of external cladding material 22 The outermost layer of piece 220 is " thermal welding sealer 224 " and the thermal welding surface being made of the resin with heat sealability The structure that protective layer 224 plays a role as bonding agent.

The specific type of bonding agent 12 or thermal welding sealer 224 is not particularly limited, same as hot welding layer 223 Low density polyethylene (LDPE) etc. can be used.Herein, bonding agent 12 or thermal welding sealer 224 are preferably resistance to 80 DEG C or more It is hot.Thus, it is possible to cope with significantly temperature change when spherical tank 101 manufactures or when repair.

In addition, bonding agent 12 or thermal welding sealer 224 is made to melt, make vacuum heat-insulation component 20C and Foamex The method of 11 bonding of layer is not particularly limited.For example, if it is bonding agent 12 is utilized, as long as bonding agent 12 is then coated in vacuum The outer surface of heat insulating component 20C (external cladding material 22), using as the styrene resin group of the raw material of foamed resin layer 11 At being heated in the state of object (preferably an example is expanded beads) cladding vacuum heat-insulation component 20C, styrene resin composition is made to send out Bubble, while bonding agent 12 being made to melt.In addition, using thermal welding sealer 224, as long as utilizing benzene It is heated in the state of vinyl resins constituent cladding vacuum heat-insulation component 20C, so that styrene resin composition is foamed, simultaneously Thermal welding sealer 224 is set to melt.Therefore, as long as bonding agent 12 or thermal welding sealer 224 are set by foaming The material melted under the heating temperature of the raw material of lipid layer 11 is constituted.

(embodiment 8)

The heat-insulated container 104 of the above embodiment 1~7 is provided in the spherical tank 101 of LNG transfer pots ship 100, but this hair It is bright without being limited thereto, such as can also be the LNG tank of land setting.In present embodiment 8, with reference to figure 20 and Figure 21 to this LNG tank illustrates.

Figure 20 shows ground type LNG tank 120.The ground type LNG tank 120 includes and the spherical tank of the above embodiment 1 101 Same spherical heat-insulated container 124 is used as can body, the heat-insulated container 124 to be supported on ground 50 by supporting structure portion 121. Supporting structure portion 121 for example by be set in vertical direction multiple pillars 122 on ground 50 and setting pillar 122 each other Between support (brace) 123 constitute, but be not particularly limited.

Heat-insulated container 124 includes keeping the container casing 126 of cryogenic substance and being arranged in the outside of the container casing 126 Heat insulating structure body 125.The concrete structure of container casing 126 and heat insulating structure body 125 is as described in above-mentioned Embodiments 1 to 7 Equally, especially heat insulating structure body 125 can suitably use the structure or appropriately combined of any one in the above embodiment 1~7 The structure that the structure of these embodiments obtains.

Figure 21 shows underground type LNG tank 130.The underground type LNG tank 130 is in the concrete body for being embedded in ground 50 131 are internally provided with columnar heat-insulated container 134, which includes the container casing 136 for keeping cryogenic substance With the heat insulating structure body 135 in the outside of the container casing 136 is set.Concrete body 131 is for example by prestressed concrete It constitutes, is arranged in ground in such a way that it is predominantly located in the lower section on ground 50.Concrete body 131 is bearing underground type The supporting mass of the structure of the can body of LNG tank 130, and as preventing LNG from leaking out in case can body is just in case damaged barrier layer It plays a role.

In addition, the upper opening in heat-insulated container 134 is provided with the roof portion 132 separated with heat-insulated container 134.Roof portion 132 upper surface is the flexure plane of convex, and lower surface is flat surface.It is same in the outside in roof portion 132 and heat-insulated container 134, It is provided with heat insulating structure body 135, is provided with fibrous heat-barrier material 133 inside it.The threadiness heat-barrier material 133 for example may be used To enumerate the inorganic fiber for the core material 21 for being used as vacuum heat-insulation component 20A~20C.Container casing 136 and heat insulating structure body 135 Concrete structure with illustrate in the above embodiment 1~7 it is same, especially heat insulating structure body 135 can suitably use it is above-mentioned The structure that the structure of the structure of any one in Embodiments 1 to 7 or these appropriately combined embodiments obtains.

Like this, the present invention can be applied not only to LNG transfer pots ship 100, additionally it is possible to be suitable for ground type LNG tank 120 Or underground type LNG tank 130.Herein, the spherical tank 101 of LNG transfer pots ship 100 and the can body of ground type LNG tank 120 include Spherical heat-insulated container 104 or 124.In addition the can body of underground type LNG tank 130 includes columnar heat-insulated container 134 and tool There is the roof portion 132 of the flexure plane of convex.

Therefore, the present invention can be well applied to spherical shape, cylindrical shape, the roof portion etc. with flexure plane, at least have In the heat-insulated container of curve form.It is further preferred that can be suitable for the section like that such as spherical or cylindrical shape be closed surface shape every Heat container can particularly preferably be suitable for the heat-insulated container of spherical (also including oval ball-type or approximately spherical shape).

(embodiment 9)

In the above embodiment 1~8, the cryogenic substance that keeps in heat-insulated container is LNG, however, the present invention is not limited thereto, As long as the substance that cryogenic substance preserves at a temperature of less than room temperature, preferably in 100 DEG C lower than room temperature or more of temperature The lower fluid kept of degree.In present embodiment 9, hydrogen is illustrated as the cryogenic substance other than LNG.Liquefaction is kept with reference to Figure 22 An example of the hydrogen tank of hydrogen is specifically described.

As shown in figure 22, the hydrogen tank 140 of present embodiment is container (container) type, is substantially had and above-mentioned reality Apply 120 same structure of the spherical tank 101 illustrated in mode 1 or the ground type LNG tank illustrated in the above embodiment 8. That is, hydrogen tank 140 is provided with the heat-insulated container 144 as can body in the supporting mass 141 of frame-shaped, which includes It keeps the container casing 146 of cryogenic substance and the heat insulating structure body 145 in 146 outside of the container casing is set.Container casing 146 With the concrete structure of heat insulating structure body 145 with illustrate same, especially 145 energy of heat insulating structure body in the above embodiment 1~7 Enough appropriate knots obtained using the structure of any one or the structure of these appropriately combined embodiments in the above embodiment 1~7 Structure.

In general, liquefying hydrogen (liquid hydrogen) is the liquid of -253 DEG C of extremely low temperature, and plays evaporation compared with LNG and be easy Degree is about 10 times.Therefore, horizontal with evaporation loss same LNG in order to obtain for liquefying hydrogen, it needs to further increase heat-insulated The heat-proof quality of material (pyroconductivity is small).In this regard, in present embodiment, using it is above-mentioned be the knot illustrated in Embodiments 1 to 7 The heat insulating structure body of structure, therefore further high insulation is realized to hydrogen tank 140.

In addition, the cryogenic substance kept in heat-insulated container in the present invention is not limited to LNG or hydrogen, as long as being less than room temperature At a temperature of the substance (fluid with mobility at preferably 100 DEG C lower than room temperature or more of temperature) that preserves.With stream For body, as the fluid other than LNG and hydrogen, liquefied petroleum gas (LPG), other hydrocarbon gas can be enumerated or comprising this A little imflammable gas.Or can also be the temperature for being less than room temperature in the various compounds transported in chemical tanks ship (tank car) etc. The lower compound preserved of degree.In addition, the heat-insulated container that can be applied in the present invention can also be for medical or industry low Temperature preserves container etc..In addition, room temperature is in the range of 20 DEG C ± 5 DEG C (in the range of 15 DEG C~25 DEG C).

As shown in the above description, to those skilled in the art, many improvement of the invention and other embodiment party Formula is obvious.Therefore, above description should be construed as exemplary only, and be to instruct those skilled in the art real It applies the optimal embodiment of the present invention and provides.In the state of not departing from the spirit of the present invention, it can be substantially changed The details of structure and/or function.

(embodiment)

Based on embodiment and comparative example, the present invention is more particularly described, however, the present invention is not limited thereto.Art technology Personnel can make various changes, modifications and variations without departing from the scope of the present invention.

(computational methods of evenly heat through-flow rate)

According to the hot-fluid calculating method of JIS A 1412, ASTM C518 and ISO 8301, Eko Instruments Trading is utilized The pyroconductivity measuring instrument (goods number HC-074-300 or HC-074-066) of (EKO Instruments Co., Ltd.s) system, The pyroconductivity of each thermal insulation layer to constituting heat insulating structure body in the heat-insulated container of following comparative example or embodiment carries out It measures.At this point, the internal temperature of heat-insulated container is set as -160 DEG C, extraneous air is set as 25 DEG C.According to obtained pyroconductivity With the thickness of each thermal insulation layer averagely the evenly heat through-flow rate of heat insulating structure body is calculated using Area-weighted.

(embodiment 1)

In the outside of the spherical container casing of aluminum, setting is heat-insulated with first thermal insulation layer, second thermal insulation layer and third The heat insulating structure body of layer, thus obtains the heat-insulated container of embodiment 1.It is heat-insulated as first in each thermal insulation layer of heat insulating structure body Layer and second thermal insulation layer use the above embodiment 1 using the foaming body thermal insulation board of foamed styrene as third thermal insulation layer The vacuum heat-insulation component of the structure of middle explanation.In addition, thickness T, first thermal insulation layer and the second thermal insulation layer of heat insulating structure body entirety Total thickness t 1 and third thermal insulation layer thickness t2 it is as shown in table 1.The evenly heat of the heat-insulated container is calculated using the above method Through-flow rate.The result of calculation of evenly heat through-flow rate, the evaluation result of the heat-proof quality on the basis of aftermentioned comparative example 1 and The ratio of thickness on the basis of comparative example 1 is as shown in table 1.

(comparative example 1)

It is and above-mentioned other than being provided on the outside of container casing without the comparison heat insulating structure body of third thermal insulation layer Embodiment 1 is similarly formed heat insulating structure body, thus to obtain the heat-insulated container of comparative example 1.In addition, in relatively heat insulating structure body, The thickness of heat insulating structure body entirety is similarly to Example 1.Thickness T, t1 and the t2 for comparing heat insulating structure body are as shown in table 1.It utilizes The above method calculates the evenly heat through-flow rate of the heat-insulated container.The result of calculation of evenly heat through-flow rate is as shown in table 1.In addition, Comparative example 1 is the benchmark of heat-proof quality and Thickness Evaluation, so in table 1, the evaluation result of heat-proof quality and the ratio of thickness As a result it is recorded as " 1.00 ".

(embodiment 2)

Other than reducing the thickness of first thermal insulation layer and second thermal insulation layer, implemented in the same manner as in the above embodiment 1 The heat-insulated container of example 2.The present embodiment 2 is to evaluate heat-insulated knot on the basis of playing with 1 same heat-proof quality of comparative example The thickness of structure body entirety can reduce how much.In addition, thickness T, t1 and t2 of the heat insulating structure body of embodiment 2 are as shown in table 1.Profit The evenly heat through-flow rate of the heat-insulated container is calculated in aforementioned manners.The result of calculation of evenly heat through-flow rate with comparative example 1 is base The evaluation result of accurate heat-proof quality and the ratio of the thickness on the basis of comparative example 1 are as shown in table 1.

[table 1]

The thickness and result [unit] of thermal insulation layer	Comparative example 1	Embodiment 1	Embodiment 2
				The thickness T [mm] of heat insulating structure body	400	400	250
The total thickness t 1 [mm] of first thermal insulation layer and second thermal insulation layer	400	380	230
				The thickness t2 [mm] of third thermal insulation layer	0	20	20
Evenly heat through-flow rate [W/m²·K]	0.061	0.044	0.061
				The ratio between heat-proof quality	1.00	1.28	1.00
The ratio between thickness of heat insulating structure body	1.00	1.00	0.63

(comparison of embodiment 1,2 and comparative example 1)

As shown in table 1, the heat insulating structure body of the heat insulating structure body Yu comparative example 1 of embodiment 1 has same thickness, average Hot through-flow rate is lower, and heat-proof quality improves 28%.On the other hand, the heat-insulated knot of the heat insulating structure body Yu comparative example 1 of embodiment 2 Structure body heat-proof quality having the same, but integral thickness reduce 37%.

Like this, in accordance with the invention it is possible to substantially reduce the first thermal insulation layer being made of foaming body thermal insulation board and second every The thickness of thermosphere (or integrated layer).Therefore, if the size of heat-insulated container entirety is identical, the heat-insulated container of embodiment 1 or 2 with The heat-insulated container of comparative example 1 is compared, and the internal capacity of container casing can be increased.

(embodiment 3)

Contemplate the total thickness of the first thermal insulation layer and second thermal insulation layer (and integrated layer) that are made of foaming body thermal insulation board The thickness of third thermal insulation layer that degree is set as 300mm, is made of vacuum heat-insulation component is set as the heat insulating structure body of 100mm, to this every Heat container imagine from LNG temperature (- 162 DEG C) to the thermal simulation of the temperature gradient of room temperature (25 DEG C).The result such as Figure 23 Chain-dotted line I shown in.

(comparative example 2)

In addition to imagining the more heat-insulated knot being made of the foaming body thermal insulation board of overall thickness 400mm without third thermal insulation layer Other than structure body, thermal simulation has equally been carried out with above-described embodiment 3.Its result is as shown in the dotted line II of Figure 23.

(comparison of embodiment 3 and comparative example 2)

From the analog result of Figure 23 as it can be seen that in the comparison heat insulating structure body of comparative example 2, as shown in dotted line II, temperature with away from The distance (i.e. the thickness of thermal insulation layer) of the internal face of container casing proportionally rises, but in the heat insulating structure body of embodiment 3, As shown in chain-dotted line I, the thermal gradient angle of foaming body thermal insulation board (first thermal insulation layer, second thermal insulation layer and integrated layer) is small, very The thermal gradient angle of empty heat insulating component (third thermal insulation layer) is big.Therefore, of the invention, the heat-proof quality of third thermal insulation layer can be utilized Reduce the atmosphere temperature in the region that there is the foaming body thermal insulation board as inside thermal insulation layer.In addition, inside thermal insulation layer itself is cold The thermophoresis of temperature also reduces (the thermal gradient angle of 0~300mm of chain-dotted line I is gentle), it may thus be appreciated that improving inside thermal insulation layer The heat-proof quality of itself.

Industrial availability

As described above, in the present invention, can obtain heat-proof quality can further increase and realize long-term effectively good Heat-proof quality heat-insulated container, so the present invention can widely be suitable for the spherical tank such as LNG transfer pot ships, land set LNG tank or hydrogen tank for setting etc. keep the field of insulated containers of cryogenic substance.

The explanation of reference numeral

10 vacuum heat-insulation panels

11 foamed resin layers

12,16 bonding agent

13 secure components

14,15 filling with insulation material

17 metal meshes

20A~20C vacuum heat-insulation components

21 core materials

22 external cladding materials (overcoating part)

23 adsorbents

24 sealings (sealing fin)

25 opening portions

26A, 26B check-valves

27 sealing protective layers

30A~30D foaming body thermal insulation boards

31,32 edge

33 integrated layers

50 ground

100 LNG transfer pot ships

101 spherical tanks

102 hulls

103 lids

104,124,134,144 heat-insulated container

105,125,135,145 heat insulating structure body

106,141 supporting masses

110,124,134,144 container casing

111 first thermal insulation layers

112 second thermal insulation layers

113 third thermal insulation layers

114 the 4th thermal insulation layers

120 ground type LNG tanks

121 supporting structure portions

122 pillars

123 supports (brace)

130 underground type LNG tanks

131 concrete bodies

132 roofs portion

133 fibrous heat-barrier materials

140 hydrogen tanks

220 laminates

Laminates on the outside of 220A

Laminates on the inside of 220B

221 sealers

222 gas barrier layers

223 hot welding layers

224 thermal welding sealers

225 fire retardant layers

226 Heat pretreatment gas barrier layers

240 welding positions

241 thinner wall sections

242 thick wall portions

243 intensity decline position

Claims

1. a kind of heat-insulated container, it is characterised in that：

Cryogenic substance for keeping preserving with 100 DEG C lower than room temperature or more of temperature,

The heat-insulated container includes：

Container casing；With

The heat insulating structure body in the outside of the container casing is configured,

The heat insulating structure body be include the first thermal insulation layer set gradually outward from the container casing, second thermal insulation layer and The multilayer structure making of third thermal insulation layer,

The third thermal insulation layer has multiple vacuum heat-insulation components,

The vacuum heat-insulation component includes the core material of threadiness and the bag-shaped external cladding material with gas barrier property, in the outsourcing It covers the inside of material and encloses the core material to depressurize air-tight state and constituted, and

The Heat pretreatment ratio of the inside external cladding material towards the medial surface of the container casing is constituted in the external cladding material The outside external cladding material for constituting lateral surface is high,

The vacuum heat-insulation component has the sealing for the fin-shaped for being bonded the external cladding material each other and sealing around it, And

By in the state that the sealing is folded into the vessel shell side by vacuum heat-insulation component configuration described the The outside of two thermal insulation layers constitutes the third thermal insulation layer,

The heat-insulated container further includes the sealing protective layer for the peripheral part for being formed in the sealing and is formed in the vacuum At least one of the fire retardant layer of entire surface other than the sealing of heat insulating component.

2. heat-insulated container as described in claim 1, it is characterised in that：

The second thermal insulation layer has the heat-proof quality same or higher than the first thermal insulation layer with the first thermal insulation layer.

3. heat-insulated container as described in claim 1, it is characterised in that：

The heat insulating structure body includes the first thermal insulation layer and the integrated position of the second thermal insulation layer.

4. heat-insulated container as described in claim 1, it is characterised in that：

Multiple vacuum heat-insulation components possessed by the third thermal insulation layer are adjacent to the state that its end face abuts each other.

5. heat-insulated container as claimed in claim 4, it is characterised in that：

The part for abutting each other the end face of the vacuum heat-insulation component in the third thermal insulation layer, filled with the vacuum every The different filling with insulation material of hot component.

6. heat-insulated container as described in claim 1, it is characterised in that：

The first thermal insulation layer and the second thermal insulation layer have multiple thermal insulation boards, and the thermal insulation board is abutted each other with its end face State be adjacent to,

And when what the end face of part or the vacuum heat-insulation component that the end face of the thermal insulation board abuts each other was abutted each other When part is used as docking site,

The docking site of at least two thermal insulation layers in the first thermal insulation layer, the second thermal insulation layer and the third thermal insulation layer Position is in the position to offset one from another.

7. heat-insulated container as described in claim 1, it is characterised in that：

The vacuum heat-insulation component is in the not outside with the second thermal insulation layer of the medial surface entire surface towards the container casing It is mechanically fixed with the first thermal insulation layer or the second thermal insulation layer in the state of the bonding of face.

8. heat-insulated container as described in claim 1, it is characterised in that：

It is equal that the adjacent vacuum heat-insulation component is configured to the distance away from the container casing.

9. heat-insulated container as described in claim 1, it is characterised in that：

With the blast resistance construction drastically deformed for inhibiting or preventing the vacuum heat-insulation component.

10. heat-insulated container as claimed in claim 9, it is characterised in that：

The vacuum heat-insulation component is configured to the thermal insulation board that the external cladding material is covered by foamed resin layer completely, and

The blast resistance construction is realized forming the foamed resin layer in a manner of not remaining organic foaming agent after foaming.

11. heat-insulated container as claimed in claim 9, it is characterised in that：

The vacuum heat-insulation component further includes being enclosed the inside of the external cladding material together with the core material and adsorbing inside Residual gas adsorbent,

The blast resistance construction by the adsorbent using the adsorbent of the chemisorption type of residual gas described in chemisorption or Using the adsorbent for the non-heat generation not generated heat by the absorption of residual gas or using chemisorption type and non-heat generation Adsorbent is realized.

12. heat-insulated container as claimed in claim 9, it is characterised in that：

The blast resistance construction realizes that the expansion easing portion is when residual by expansion easing portion is arranged in the external cladding material Gas discharges the residual gas to mitigate expansion in the internal expansion of the external cladding material to outside.

13. heat-insulated container as claimed in claim 12, it is characterised in that：

The expansion easing portion is provided in the check-valves of the external cladding material or is set in advance in the external cladding material The low position of locally intensity.

14. heat-insulated container as claimed in claim 12, it is characterised in that：

The external cladding material has for the opening portion to being depressurized inside bag,

The inner surface of the opening portion is hot welding layer, by carrying out thermal welding in the state of so that the hot welding layer is in contact with each other Can inside hermetic bag,

The sealing formed by the thermal welding of the opening portion, including multiple thinner wall sections, which is the hot welding layer The small thinner wall section of the thickness at mutual welding position.

15. heat-insulated container as claimed in claim 14, it is characterised in that：

The external cladding material is made of two panels laminates,

The face of a side in a pair of of positive and negative of the laminates is the hot welding layer,

By in the state of making the hot welding layer of laminates two panels opposite each other, by the periphery of the laminates The part in portion is carried out as the opening portion in a manner of surrounding the rest part of the peripheral part in addition to the opening portion Thermal welding is formed as bag-shaped,

The position of the peripheral part being heating-fusion bonded is the sealing for including multiple thinner wall sections.

16. heat-insulated container as claimed in claim 14, it is characterised in that：

The sealing further includes multiple thick wall portions other than multiple thinner wall sections, which is the welding position The big thick wall portion of thickness,

The thick wall portion and the thinner wall section are alternately arranged in such a way that the thinner wall section is between the thick wall portion.

17. heat-insulated container as described in claim 1, it is characterised in that：

The container casing has the shape comprising flexure plane.