CN103764522A

CN103764522A - Side wall unit, production method of same, and liquid storage tank provided with side wall unit

Info

Publication number: CN103764522A
Application number: CN201280039150.2A
Authority: CN
Inventors: 岩下干
Original assignee: Tokyo Kizai Kogyou Co Ltd
Current assignee: Tokyo Kizai Kogyou Co Ltd
Priority date: 2011-08-10
Filing date: 2012-07-25
Publication date: 2014-04-30
Also published as: JPWO2013021821A1; US20140166648A1; WO2013021821A1; JP5145485B1

Abstract

[Problem] To provide a side wall unit which constitutes at least a part of a liquid storage tank wherein even if a large volume of liquid is stored, liquid leakage does not occur from a joint part between the units. [Solution] A method for producing a side wall unit comprises a first joint structure forming step, a distortion removal step, a second joint structure forming step, and a side wall unit assembling step. The distortion removal step is a step to remove distortion caused by heat generated when components are welded. In this step, before the joint structure and the side wall plate are jointed, a force substantially perpendicular to a flange face and/or a force substantially parallel to the flange face are applied to the joint structure. The liquid storage tank using this side wall unit can reliably prevent the liquid leakage even if a large volume of liquid is stored.

Description

Side wall element and manufacture method thereof and there is the liquid storage tank of this side wall element

Technical field

The present invention relates to a kind of build-up type liquid storage tank.More particularly, the present invention relates to a kind of side wall element and manufacture method thereof, this side wall element is fabricated in the build-up type liquid storage tank by multiple cell formations, even if inside has held large capacity liquid, also can leak of liquid not occur from the bonding part between unit.

Background technology

For there is the liquid storage tank in space of receiving fluids in inside for, except can adopting the situation that does not have jointed structure, conventionally adopt fabricated structure.Fabricated liquid storage tank is manufactured into multiple unit of the pre-sizing that is applicable to carrying in advance in fabrication shop etc.Manufactured multiple unit are conventionally on-the-spot and assembled to arranging by vehicle conveying.Arranging in scene, multiple unit are configured to cartridge along circumferentially engaging, then that multiple cartridges are superimposed along short transverse, thus can be assembled into liquid storage tank.At this, in this manual, " circumferentially " refers to direction parallel to the ground in liquid storage tank, and " short transverse " refers to and cross circumferential direction.As this fabricated liquid storage tank, proposed for example including patent documentation 1(TOHKEMY 2009-12849) in the cylindrical shape recorded accumulate the various tanks tank.

For this fabricated liquid storage tank, how to prevent that liquid from leaking and becoming important topic from the bonding part between unit.In fabricated liquid storage tank in the past, in order to prevent leak of liquid, for example, propose to have following technical scheme.

Patent documentation 2(Japanese Patent Publication 63-6432) in the technology recorded be the structure of the bonding part between unit to be improved by managing, thereby prevent from revealing.The technology of recording in patent documentation 2 is as shown in claims and Fig. 5 and Fig. 6, to manage the marginal texture of unit to carry out improved technology, proposed to form groove in the bonding part of two unit, and in this groove, filled the technical scheme of pasty state sealing element.Also propose to have technology multiple as that record in patent documentation 2, by studying the structure of bonding part, prevent the technology of leak of liquid.

Patent documentation 3(TOHKEMY 2010-13155) in the technology recorded be the technology that construction method by managing the leakproofing material to bonding part improves to prevent leakage.In the technology of recording, in the bonding part between unit, from a side that is equivalent to tank inner side, apply wet-cured type leakproofing material in patent documentation 3.While then, being cured on the surface of aquaseal toward the in-built full water of tank.If the in-built full water of tank, causes that by the pressure of water bonding part is softened, uncured aquaseal enters the inside of bonding part, improves thus the leakproof water-based of bonding part.

Patent documentation 4(TOHKEMY 2005-105083) in the technology recorded be by filling manage with the improvement of carrying out with adhesive agent itself and the improvement of managing to carry out for the structure of bonding part gives combination for seam, thereby prevent the technology of leakage.In the technology of recording in patent documentation 4, use using monocomponent moisture cure type resin as major component, as tackifier, comprise silane coupling agent, and the tank seam filling adhesive agent that comprises fiber-filled material, prevent from the leakage of the bonding part between unit.And, filled seam fill with the flange of adhesive agent to cover the mode covering metal pressing component processed of whole flange.

And, patent documentation 5(Japanese kokai publication hei 8-26381) in proposed a kind of liquid and accumulated tank, accumulating in tank by the liquid forming that the end edge of multiple tabular bodys is bonded with each other, can not reduce accumulate performance in the situation that the operability in the time of can improving assembling and reduce cost.In build-up type liquid storage tank, so, also need to consider the operability when unit is engaged to the assembling of carrying out liquid storage tank.

Prior art document

Patent documentation

Patent documentation 1: TOHKEMY 2009-12849 communique

Patent documentation 2: Japanese Patent Publication 63-6432 communique

Patent documentation 3: TOHKEMY 2010-13155 communique

Patent documentation 4: TOHKEMY 2005-105083 communique

Patent documentation 5: Japanese kokai publication hei 8-26381 communique

Summary of the invention

Technical matters

In build-up type liquid storage tank, although will prevent reliably that liquid from leaking from bonding part is mathematical as major premise, but from the easiness of on-the-spot assembly and disassembly and the viewpoint of manufacturing cost are being set, also require the structure of bonding part each other, the unit of formation liquid storage tank and joint method at the scene to simplify as far as possible.Therefore, in order to be reduced at, on-the-spot assembling procedure is set, the unit of high-capacity liquid storage tank is preferably configured to: when unit is engaged with each other, as long as make faying flange opposite each other, then use the machanical fasteners such as nuts and bolt that these faying flanges are engaged, just can assembling jar.The unit of this simplified structure, also comparatively favourable from the viewpoint of manufacturing cost.

And, by adopting this connected structure and method, also exist the dismounting of liquid storage tank to become easy advantage.With regard to high-capacity liquid storage tank, be not to use manager our company of tank to have tank sometimes, but the form being provided by lease by the leasing management person who has tank is provided.For this tank, if easily dismantled while returning to leasing management person after using, comparatively favourable from the viewpoint of duration and cost.

But, at for example 1000m ³in above high-capacity liquid storage tank, particularly extremely large to being positioned at the pressure of unit effect of tank bottom, even if therefore the faying flange face of these unit exists small distortion, also can there is the problem that inner liquid leaks from the bonding part between unit.

In order to prevent the leakage of liquid, although proposed the various prior aries including technology as above, but these prior aries are not considered the distortion of eliminating the bonding part causing because of welding heat when assembling jar, particularly, in high-capacity liquid storage tank due to the liquid more than holding certain capacity, be extremely difficult to address the leakage concern, and these reasons such as existing problems in the easiness of the assembly and disassembly in scene and the viewpoint of manufacturing cost are set, be often difficult to adopt prior art in high-capacity liquid storage tank.

The object of the present invention is to provide the liquid storage tank of a kind of side wall element and this side wall element of use, even if this side wall element forms the high-capacity liquid holding more than certain capacity, also can not there is not from the bonding part between unit at least a portion of the liquid storage tank of leak of liquid.

Technical scheme

Above-mentioned technical matters can solve in the following way,, in each the operation of side wall element of manufacturing at least a portion that forms liquid storage tank, by the operation of correctly eliminating in the distortion causing because of welding heat of the bonding part generation for engaging with another side wall element is set, and when the structure of the bonding part that comprises faying flange being configured to the operability in the time of can guaranteeing to engage in side wall element, even long-term, use the structure that the distortion of bonding part also can not occur.

According to first method, the invention provides the manufacture method of the side wall element of using in the manufacture of liquid storage tank at least with diapire and sidewall.Sidewall forms along short transverse is stacked by a cartridge or by multiple cartridges, and at least one of cartridge is by forming multiple side wall element along circumferential joint.The operation of the parts that this method comprises composition of preparation side wall element, the first bonded structure form operation, the first bending operation, the second bonded structure formation operation, side wall element assembling procedure eliminated.In the operation of preparation parts, prepare the sidewall paneling of rectangle and be arranged on the parts that comprise in each the bonded structure of opposed two peripheral edge portion of sidewall paneling, in bonded structure, comprise have long limit and minor face substrate parts, there is the circumferential faying flange of long limit and minor face and multiple reinforcement features of two adjacent edge parts of the angular cross that has to be scheduled to.

At the first bonded structure, form in operation, with circumferentially in conjunction with flange with a side of non-flange surface flange surface opposition side and substrate parts according to the mode of predetermined angular cross, and the position relationship paralleling with the long limit of circumferential faying flange and the long limit of substrate parts makes circumferential faying flange and substrate parts combination, and in the interior angle side being formed by the face of non-flange surface and a side, by making multiple reinforcement features, in the mode that is separated from each other interval and holds up, each at least a portion of two adjacent edge parts is combined with the face of non-flange surface and a side respectively, form thus the first bonded structure.In the first bending operation, length direction central portion to the first bonded structure on the first bonded structure so forming and length direction both ends apply respectively simultaneously from non-flange surface towards the application force of the direction of flange surface and from flange surface the application force towards the direction of non-flange surface, thereby eliminate the bending of the first bonded structure.

This method further comprises: the second bonded structure forms operation, by with prepare parts, the identical operation of operation that forms the first bonded structure and eliminate its distortion forms the second bonded structure; Side wall element assembling procedure, by bending a side of opposed peripheral edge portion of sidewall paneling and the long limit of the substrate parts of the first bonded structure be combined, the opposite side of peripheral edge portion is combined with the long limit of the substrate parts of the second bonded structure.

Second method of the present invention is also identical with first method, the invention provides the manufacture method of the side wall element of using in the manufacture of liquid storage tank at least with diapire and sidewall.Sidewall forms along short transverse is stacked by a cartridge or by multiple cartridges, and at least one of cartridge is by forming multiple side wall element along circumferential joint.This method is included in to be eliminated the first eliminating deformation and the first bonded structure that distortion time forms the first bonded structure and forms operation, substitutes thus in first method the first bonded structure carrying out as operation independently and forms operation and the first eliminating deformation operation.

At the first eliminating deformation and the first bonded structure, form in operation, first, with circumferentially in conjunction with the face of side flange and non-flange surface flange surface opposition side and substrate parts according to the mode of predetermined angular cross, and the position relationship paralleling with the long limit of circumferential faying flange and the long limit of substrate parts makes circumferential faying flange and the pre-combination of substrate parts, and in the interior angle side being formed by the face of non-flange surface and a side, make mode that multiple reinforcement features hold up to be separated from each other interval by two adjacent edge parts each at least a portion respectively with the pre-combination of face of non-flange surface and a side, make thus the first intermediate.Then, with the operation identical with the operation of making the first intermediate, make the second intermediate.Then, by the first intermediate and the second intermediate by the pre-assembled state retraining of flange surface separately under, mutually combine to each of the circumferential faying flange of major general's the first intermediate and substrate parts and multiple reinforcement features, finally obtained removing pre-assembled first bonded structure of the first intermediate and the second intermediate.The second bonded structure also can be formed by the second intermediate.

In an embodiment of second method, after the first eliminating deformation and the first bonded structure formation operation, can further comprise the second eliminating deformation operation, by the length direction central portion to the first bonded structure and length direction both ends on the first bonded structure apply respectively simultaneously from non-flange surface towards the application force of the direction of flange surface and from flange surface the application force towards the direction of non-flange surface, thereby eliminate the distortion of the first bonded structure.

In an embodiment of the first and second modes, can further comprise the 3rd eliminating deformation operation, by the length direction central portion to the first bonded structure and length direction both ends on the first bonded structure apply respectively simultaneously from a side of substrate parts facing to the application force of the direction of the face of the opposite side of the face opposition side of this side with from the application force of the direction of the face facing to a side of opposite side, thereby eliminate the distortion of the first bonded structure.

In one embodiment, the combination of parts and/or pre-in conjunction with carrying out in the following order, that is, and by each combination of circumferential faying flange and multiple reinforcement features, circumferential faying flange is combined with substrate parts, multiple reinforcement features are combined with substrate parts.In another embodiment, the combination of parts and/or pre-, circumferential faying flange is combined with substrate parts in conjunction with carrying out in the following order, is then combined each of multiple reinforcement features respectively with circumferential faying flange and substrate parts.And, preferably, the circumferentially combination of faying flange, substrate parts and multiple reinforcement features and/or pre-in conjunction with can the order of the junction near junction central portion to short side direction carrying out with respect to the long side direction of circumferential faying flange.

According to the present invention, in the Fabrication procedure of side wall element of at least a portion that forms liquid storage tank, due to can effectively eliminate to form between the parts of side wall element, carry out in conjunction with time the circumferential faying flange that causes because of welding heat distortion, therefore can engage accurately side wall element each other.In addition, be not by circumferential faying flange and the direct combination of sidewall paneling, but circumferentially between faying flange and sidewall paneling, be plugged with the substrate parts of the rigid body of the minor face with predetermined length, thereby can reduce the generation of the distortion of the circumferential faying flange causing because of welding heat between substrate parts and sidewall paneling.And, while causing higher interior pressure by the liquid in tank, faying flange and sidewall paneling cannot be kept angle between the two in the prior art of directly combination, the flange surface of adjacent faying flange struts from inner side sometimes, but according to the present invention, due to the substrate parts as rigid body being plugged with between the two than sidewall thickness of slab, thereby can keep the angle between substrate parts and circumferential faying flange, therefore the flange surface of adjacent circumferential faying flange can be not softened, can improve the connectivity between circumferential faying flange.

In yet another embodiment of the present invention, it is narrower than the interval of length direction end that multiple reinforcement features are preferably the interval of the length direction central portion that makes circumferential faying flange.Reinforcement feature is tabular body, and comprise longer than the minor face of substrate parts and be incorporated into the first side edge of substrate parts and sidewall paneling, with angle and the first side edge be scheduled to intersects and be incorporated into non-flange surface Second Edge edge, and first side edge opposed and have corresponding to the 3rd edge part of the length of the minor face of substrate parts, and Second Edge edge opposed and link the 4th edge part of one end of first side edge and one end of the 3rd edge part.In multiple reinforcement features, more preferably, in certain one or both sides of the part of the part of the intersection point corresponding to first side edge and Second Edge edge and the binding site that is equivalent to substrate parts and sidewall paneling on first side edge, form notch.

By adopting setting position and the shape of this reinforcement feature, can be under the state that keeps the angle between circumferential faying flange and substrate parts and weld both.And, by multiple reinforcement features, even apply higher interior pressure by the liquid in tank, also can keep the angle between circumferential faying flange and substrate parts, therefore the flange surface of adjacent circumferential faying flange can be not softened, can prevent the leakage of liquid.

In yet another embodiment of the present invention, preferably, the long side direction that this method is further included in circumferential faying flange is formed for the operation of the multiple through holes that insert machanical fastener, and multiple through holes are greater than the diameter of long side direction end at the circumferential diameter of the long side direction central portion of faying flange.In addition, preferably, the flange surface that this method is further included in circumferential faying flange is formed for the operation of the groove that packs sealing layer into.

So, by change the intensity for joint circumferential faying flange machanical fastener each other in short transverse, can further improve the bond strength between circumferential faying flange.And, by be provided for forming the groove of sealing layer at flange surface, therefore can prevent more reliably the leakage of internal liquid, and can avoid the dislocation of the sealing layer when assembling liquid storage tank.

Third Way according to the present invention provides a kind of side wall element of the cartridge that is configured for liquid storage tank, the sidewall that this liquid storage tank at least comprises diapire, consist of a cartridge or multiple cartridge and the sidewall that form stacked along short transverse, at least one of cartridge by multiple side wall element along circumferentially engaging and forming.Sidewall paneling that side wall element comprises bending rectangle, be arranged on respectively the pair of engaging structure of opposed two peripheral edge portion of sidewall paneling, multiple reinforcement features that each of pair of engaging structure comprises two adjacent edge parts with the substrate parts on minor face and long limit, the circumferential faying flange with minor face and long limit, the angular cross that has to be scheduled to.

Circumferentially faying flange and substrate parts with circumferentially in conjunction with flange with a side of non-flange surface flange surface opposition side and substrate parts according to the mode of predetermined angular cross, and the position relationship combination paralleling with the long limit of circumferential faying flange and the long limit of substrate parts.The interior angle side forming at the face of the side by non-flange surface and substrate parts, the mode that multiple reinforcement features are holded up to be separated from each other interval is combined each at least a portion of two adjacent edge parts respectively with the face of non-flange surface and a side.In addition, on each each long limit of substrate parts in conjunction with pair of engaging structure of the opposed peripheral edge portion of sidewall paneling.

By using the side wall element of this structure, can keep the angle between circumferential faying flange and substrate parts, even and if apply interior pressure by the liquid in tank, also can keep the angle between circumferential faying flange and substrate parts, therefore the flange surface of adjacent circumferential faying flange can be not softened, can prevent the leakage of liquid.

According to cubic formula, the invention provides a kind of liquid storage tank of the side wall element that possesses the method manufacture by recording in any one in claim 1～claim 16.

And, according to the 5th mode, the invention provides the liquid storage tank of the side wall element of recording in a kind of any one possessing in claim 17～claim 25.

According to the present invention, even if can obtain holding high-capacity liquid, also can prevent reliably the liquid storage tank of the leakage of liquid.

Accompanying drawing explanation

Fig. 1 is the block diagram that uses the large capacity liquid storage tank of the side wall element assembling of an embodiment of the invention.

Fig. 2 is the block diagram that uses the large capacity liquid storage tank of the side wall element assembling of another embodiment of the present invention.

Fig. 3 is the block diagram of the side wall element of an embodiment of the invention.

Fig. 4 A is the block diagram of a part for the bonded structure that comprises in the side wall element shown in Fig. 3 and sidewall paneling.

Fig. 4 B is the block diagram that represents another embodiment of bonded structure.

Fig. 4 C is the block diagram that represents the another embodiment of bonded structure.

Fig. 5 (a) is the block diagram of the shape of the reinforcement feature shown in presentation graphs 4, and Fig. 5 (b) is the block diagram of the another kind of shape of expression reinforcement feature.

Fig. 6 is the figure of the method for the distortion of eliminating bonded structure is described.

Fig. 7 is the figure of the method for the distortion for the bonded structure on elimination and Fig. 6 different directions is described.

Fig. 8 forms the figure of the method for bonded structure when being the distortion for elimination bonded structure is described.

Fig. 9 forms the figure of the method for bonded structure when being the distortion for elimination bonded structure is described.

Figure 10 be illustrated in the setting of faying flange face for configuring the block diagram of recess of sealing layer.

Figure 11 is the block diagram that is provided with the side wall element of short transverse faying flange.

Nomenclature

1,1' liquid storage tank

2,2' cartridge

10,10' side wall element

12 sidewall panelinies

14,16 peripheral edge portion

18,20 short transverse edge parts

22,24 bonded structures

22', 22 " intermediates

26 substrate parts

28 circumferential faying flanges

30 reinforcement features

32 through holes

40,41 grooves

50 short transverse faying flanges

The specific embodiment

Below, with reference to the accompanying drawings of embodiments of the present invention.

1. the structure of side wall element

Fig. 1 illustrates an example of using the high-capacity liquid storage tank that the side wall element of an embodiment of the invention is assembled into.Side wall element has bonded structure at circumferential both ends, and bonded structure comprises circumferential faying flange.With regard to liquid storage tank, by being situated between, by circumferential faying flange, mutually combine junction structure each other, thereby along circumferentially connecting multiple side wall element, and by being layered on the independent diapire of manufacturing along short transverse connected the multiple cartridges that form by multiple side wall element, assemble thus.It should be noted that, in this manual, " cartridge " is not limited to the parts of rounded cylindrical body, can also comprise the parts of polygon cylindrical body.For the quantity of used side wall element and the quantity of cartridge, do not limit, can suitably select according to the size of liquid storage tank and purposes.Side wall element of the present invention is preferably used in capacity at least than 1000m ³large high-capacity liquid storage tank, even if be used in, for example internal diameter 12m is above, height 10m is above, capacity 1200m ³above liquid storage tank, also can prevent that liquid from leaking from the junction surface between side wall element reliably.

Side wall element of the present invention is manufactured by the Fabrication procedure that comprises the operation of eliminating the thermal deformation that welds the bonded structure producing, owing to thering is this eliminating deformation operation, even if therefore can obtain to apply in liquid storage tank in height, press, also can prevent from the side wall element of the bonding part leakage liquid between adjacent side wall element.And, the bonded structure of side wall element of the present invention has the special structure as having been described in detail below, by this structure, in the situation that having applied high interior pressure, also can keep the angle between circumferential faying flange and substrate parts, thereby can prevent the distortion of bonded structure.In addition, according to this structure, the joint portion between bonded structure and sidewall paneling can not deform, and therefore not only in a short time, in the situation that having applied high interior pressure for a long time, the leakage preventing effectiveness of liquid is also extremely remarkable.With regard to high-capacity liquid storage tank, especially the interior pressure that is applied to sidewall below tank becomes extremely large, therefore the thermal deformation when not considering to eliminate the manufacture of the bonding part between unit, and do not have in the existing unit of the such special structure of bonded structure of the present invention, cannot prevent reliably that liquid from leaking from bonding part.

Used the liquid storage tank of side wall element to mainly contain two kinds of forms below, side wall element of the present invention can be in the liquid storage tank of any one form of comprising these forms.One in two kinds of forms as shown in Figure 1, is the liquid storage tank 1 of cartridge cascade type.By the peripheral edge portion of the sidewall paneling of growing at lateral length (this be, the minor face of sidewall paneling) each multiple side wall element 10 that bonded structure is installed along circumferentially engaging and make cartridges 2, on diapire, along the stacked multiple cartridges 2 of short transverse, make the plurality of cartridge 2 become the structure of sidewall.Low below the inner pressure ratio applying above liquid storage tank 1, therefore adopt in the situation of this form, in the cartridge 2 of the sidewall above forming, need not use side wall element 10 of the present invention.That is, side wall element of the present invention can be used as to the unit of the below that is positioned at liquid storage tank 1, the unit of prior art be used as to the unit that is positioned at top.

The second form as shown in Figure 2, be single cartridge type liquid storage tank 1 '.By the peripheral edge portion of the sidewall paneling of growing at longitudinal length (this be, the long limit of sidewall paneling) each multiple side wall element 10 ' edge that bonded structure is installed circumferentially engage, on diapire, make cartridge 2 ', make this cartridge become liquid storage tank 1 ' the structure of sidewall.Adopt in the situation of this form, need to use side wall element of the present invention to all unit.

Here, take the liquid storage tank 1 of the cascade type shown in Fig. 1 as example, the structure of the side wall element 10 of an embodiment of the invention is described.Fig. 3 represents the side wall element 10 of an embodiment of the invention.Side wall element 10 comprises sidewall paneling 12 and is arranged on each two bonded structures 22,24 of opposed two peripheral edge portion 14,16 of sidewall paneling 12.In the following description, as shown in Figure 1, example explanation the present invention that the side wall element of being grown by four lateral lengths based on a cartridge 2 forms.

[bonded structure]

Fig. 4 A represents the bonded structure 22 of the peripheral edge portion 14 that is installed in sidewall paneling 12.At this, because bonded structure 24 also has the structure identical with bonded structure 22 conventionally, therefore only for the structure of bonded structure 22, be elaborated below.Bonded structure 22 has substrate parts 26, circumferential faying flange 28, multiple reinforcement feature 30.In Fig. 4 A, also show the sidewall paneling 12 that is arranged on bonded structure.

Substrate parts 26 and circumferentially faying flange 28 are to be circumferentially combined according to the mode of predetermined angular cross with a side 26A of substrate parts 26 with non-flange surface 28A flange surface 28B opposition side in conjunction with flange 28.This predetermined angle is the angle definite according to the diameter of liquid storage tank 1, is preferably 90 degree or is greater than 90 degree.That is, in liquid storage tank 1, the first type surface of substrate parts 26 (that is, face 26A) is along the wall configuration of tubular tank 1, and on the other hand, circumferentially the flange surface 28B of faying flange 28 need to be with respect to the wall arranged perpendicular of liquid storage tank 1.Therefore, circumferentially the intersecting angle between the non-flange surface 28A of faying flange 28 and the face 26A of a side of substrate parts 26 becomes 90 degree or is greater than the angle of 90 degree.The diameter of the liquid storage tank 1 of assembling is larger, can make this angle more approach 90 degree, and diameter is less, can make this angle larger.Circumferentially the position relationship between the long limit 28L of faying flange 28 and the long limit 26L of substrate parts 26, can be arranged in fact parallel.In Fig. 4 A, although the mode of holding up from the short side direction end of the non-flange surface 28A of circumferential faying flange 28 with substrate parts 26 illustrates, but also can make substrate parts 26 from the position beyond the end of the non-flange surface 28A of circumferential faying flange 28, for example, near the central authorities of short side direction, hold up.In this case, as shown in Figure 4 B, the circumferential faying flange 28 of side wall element 10 becomes the form of the inner side that enters into liquid storage tank 1, in the part of this inner side, also can use for example machanical fastener to engage adjacent circumferential faying flange 28, thereby further improve the bond strength between adjacent circumferential faying flange, can obtain the effect that better prevents leak of liquid.

And, in Fig. 4 A, although the mode of holding up from non-flange surface 28A with substrate parts 26 illustrate, also can make circumferential faying flange 28 hold up from the short side direction end of the face 26A of a side of substrate parts 26.But, when being configured to this structure, on face of joint when bonded structure 22 engages with other bonded structure, need to carry out circumferential faying flange 28 and the weld zone of the bound fraction of substrate parts 26 to carry out smear metal processing and make this faying face become smooth operation, therefore not only cause process number quantitative change many, and carry out the result of this operation, may cause producing ladder between the flange surface 28B of circumferential faying flange 28 and the end face of the long limit 26L of substrate parts 26 poor.In this case, exist and cause from the hidden danger of the face of joint leakage liquid between the adjacent structure of bonded structure 22, therefore need to guarantee fully the precision of planarization.

The mode that the interior angle side that multiple reinforcement features 30 form at the face 26A of the side by non-flange surface 28A and substrate parts 26 is holded up with the interval of being scheduled to mutually, is combined respectively each at least a portion of adjacent two

edge part

30A, 30B with face 26A and the non-flange surface 28A of a side of substrate parts 26.

[sidewall paneling]

Can make sidewall paneling 12 for rectangular metal sheet, wherein, opposed two peripheral edge portion the 14, the 16th, minor face, opposed two short transverse edge parts the 18, the 20th, long limit.Sidewall paneling 12 is according to being housed inside the class of liquids of liquid storage tank 1 inside and the tenure of use of liquid storage tank, can by iron, corrosion-resistant steel etc. arbitrarily material make.The shape of sidewall paneling 12 is according to the shape of liquid storage tank 1 and form the quantity of side wall element 10 of a cartridge 2, can be configured to rectangle that lateral length grows, rectangle that longitudinal length is grown or foursquare any one.Thickness, the length of peripheral edge portion 14,16 and the length of short transverse edge part 18,20 for sidewall paneling 12 do not limit, and can, according to the size of liquid storage tank 1, suitably select.Sidewall paneling 12 can be before bonded structure being arranged on to peripheral edge portion 14,16 random time point, coordinate liquid storage tank 1 wall curvature and be bent.

[substrate parts]

The substrate parts 26 of present embodiment can consist of the metal plate-like body with two long limit 26L and two minor face 26S.Substrate parts 26 is according to being housed inside the class of liquids of liquid storage tank 1 inside and the tenure of use of liquid storage tank, can by iron, corrosion-resistant steel etc. arbitrarily material make.A side of long limit 26L is the edge part with peripheral edge portion 14 combinations of sidewall paneling 12 by welding, and therefore its length is preferably equal in length with peripheral edge portion 14.The length of minor face 26S is preferably and is configured to guarantee that the impact of the welding heat producing when soldered at substrate parts 26 and sidewall paneling 12 can not feed through to the distance of circumferential faying flange 28 described later.

Thickness to substrate parts 26 does not limit, and can suitably select according to the size of liquid storage tank 1.Substrate parts 26 be preferably be arranged to thicker than sidewall paneling 12.By the used thickness substrate parts 26 thicker than sidewall paneling 12, can more firmly keep the predetermined angular between substrate parts 26 and circumferential faying flange 28.As prior art, by sidewall paneling and the circumferential direct combination of faying flange in the situation that, when existence is subject to from the high pressure of inner liquid, cannot keep the angle between sidewall paneling and flange surface, opposed flange surface between adjacent unit struts from the direction that is equivalent to tank inner side, and the situation that causes internal liquid to leak.

[circumferentially faying flange]

Circumferential faying flange 28 in present embodiment can consist of the metal plate-like body with two long limit 28L and two minor face 28S.Circumferentially faying flange 28 is according to being housed inside the class of liquids of liquid storage tank 1 inside and the tenure of use of liquid storage tank, can by iron, corrosion-resistant steel etc. arbitrarily material make.The length of long limit 28L is preferably identical with the length of the long limit 26L of substrate parts 26.For the thickness of circumferential faying flange 28 and the length of minor face 28S, be not particularly limited, but be preferably and there is enough thickness and length, can guarantee and the bond strength of the circumferential faying flange 28 of adjacent side wall element 10.

Circumferentially on faying flange 28, through hole 32 can be set, such as to insert, for carrying out the fastener of mechanical engagement, the machanical fastener of nuts and bolt etc. with the circumferential faying flange 28 of adjacent side wall element 10.Through hole 32, can be as required arranges with interval arbitrarily without uniformly-spaced to arrange at the long side direction of circumferential faying flange 28.For example, in large capacity liquid storage tank, in side wall element 10, from the bonding part of short transverse, near the short transverse central authorities away from, be applied with the interior pressure that makes the distortion that side wall element 10 occurs to expand laterally.Therefore, in order further to improve the bond strength of circumferential faying flange 28 corresponding parts, as shown in Figure 4 C, interval between adjacent through hole 32 at the long side direction of circumferential faying flange 28 (, short transverse) from end, towards central portion, become narrower and narrower (that is, the quantity of through hole 32 becomes many).At this, in order further to improve the bond strength of circumferential faying flange 28, except changing the interval of through hole 32, or, can also change interval and make the diameter of through hole 32 become large, can insert the bolt that diameter is larger.The location optimization of the short side direction of through hole 32 is the position that as far as possible approaches substrate parts.

[reinforcement feature]

Each of multiple reinforcement features 30 can consist of metal plate-like body, as shown in Figure 4 A, can at least there is first side edge 30A on the face 26A of a side that a part is welded on substrate parts 26, the Second Edge edge 30B with respect to first side edge 30A with the angular cross of being scheduled at least a portion of being welded on non-flange surface 28A.Therefore,, according to first side edge 30A and Second Edge edge 30B, can keep the predetermined angle between substrate parts 26 and circumferential faying flange 28.As mentioned above, this predetermined angle is to carry out definite angle according to the diameter of liquid storage tank 1.Length to first side edge 30A and Second Edge edge 30B does not limit.First side edge 30A is preferably has at least identical with the minor face 26S of substrate parts 26 length.In another embodiment, more preferably, first side edge 30A is longer than the minor face 26S of substrate parts 26, makes on its face 12A that is welded on sidewall paneling 12.By the length of first side edge 30A being arranged to extend to from the face 26A of a side of substrate parts 26 the face 12A of sidewall paneling 12, thereby the joint portion between substrate parts 26 and sidewall paneling 12 can be out of shape because of interior pressure, and can strengthen the intensity with respect to the sidewall paneling 12 of interior pressure.

As shown in Fig. 5 (a), reinforcement feature 30 can further comprise opposed with first side edge 30A and have a 3rd edge part 30C, opposed with Second Edge edge 30B and be connected the 4th edge part 30D of one end of first side edge 30A and one end of the 3rd edge part 30C of the length corresponding with the minor face 26S of substrate parts 26.The length of the 3rd edge part 30C is preferably identical with the minor face 26S of substrate parts.Adopting this shape in the situation that the shape that reinforcement feature 30 is formed as the quadrangle that formed by first side edge 30A, Second Edge edge 30B and the 3rd edge part 30C and the part of being combined with the face 12A of sidewall paneling 12 in the 30A of first side edge and the 4th edge part 30D are combined as the triangle on adjacent both sides.By reinforcement feature 30 is formed as to this shape, tetragonal part plays substrate parts 26 and the circumferentially effect of the angle between faying flange 28 of keeping, leg-of-mutton part plays the effect of reinforced sidewall plate 12 with respect to the intensity of interior pressure, its result, in the higher large capacity liquid storage tank of interior pressure, also can prevent reliably that liquid from leaking from the bonding part between adjacent side wall element 10.

In multiple reinforcement features 30, as shown in Fig. 5 (b), more preferably, with first side edge 30A and Second Edge edge 30B between part corresponding to intersection point form notch 31.For there is no the reinforcement feature 30 of shape of notch 31, when bonded structure 22 is subject to interior pressure, stress concentrates on the intersection point place of first side edge 30A and Second Edge edge 30B, existence produces damaged possibility from this part, and by notch 31 is set, can prevent the generation of this problem.In addition, when there is no notch 31, substrate parts 26 and the circumferentially position that is welded on the intersection point between first side edge 30A and Second Edge edge 30B between faying flange 28 become discontinuous, and by forming notch 31, also have advantages of and both can be welded continuously.

In addition, in the present embodiment, as shown in Fig. 5 (a), it is poor that first side edge 30A is more preferably provided with ladder at middle part.In the present embodiment, the thickness of the Thickness Ratio sidewall paneling 12 of substrate parts 26 is thick, and as shown in Figure 4 A, because the mode that substrate parts 26 and sidewall paneling 12 are roughly positioned to same plane with the face 26B of the opposite side of substrate parts 26 and the inside face 12B of sidewall paneling 12 is combined, therefore between the face 26A of a side of substrate parts 26 and the outside face 12A of sidewall paneling 12, produce ladder poor, correspondingly, form reinforcement feature 30.Therefore, when the face 26A of the side for substrate parts 26 and the outside face 12A of sidewall paneling 12 are roughly positioned at the embodiment that the mode of same plane is combined, poor without ladder being set at first side edge 30A.And, in another embodiment, as shown in Fig. 5 (b), be more preferably equivalent to the poor part of ladder of first side edge 30A,, corresponding to the part of the binding site of sidewall paneling 12 and substrate parts 26, form notch 34.By forming notch 34, can obtain the following effect identical with the effect of notch 31: the stress that prevents the poor part of ladder is concentrated and prevents that the welding between sidewall paneling 12 and substrate parts 26 is discontinuous.

In the present embodiment, the interval of each of multiple reinforcement features 30 is identical, but is not limited to this, can be arranged to as required interval arbitrarily.In another embodiment, as shown in Figure 4 C, multiple reinforcement features 30 can be combined into compared with the interval with the end of the long side direction of circumferential faying flange 28, and near the interval central authorities of long side direction is narrower.By with this interval in conjunction with reinforcement feature 30, can more effectively resist near interior pressure suffered the short transverse central authorities of side wall element 10.

2. the manufacture method of side wall element

Then,, take the side wall element 10 shown in Fig. 3 as example, the manufacture method of side wall element of the present invention is described with reference to Fig. 6～Fig. 9.

[preparations of parts]

In the method, the parts of composition of preparation side wall element 10 first.

As mentioned above, side wall element 10 at least comprises a sidewall paneling 12, two bonded structures 22,24, and each of bonded structure 22 and 24 at least comprises a substrate parts 26, circumferential faying flange 28, multiple reinforcement feature 30.Quantity for reinforcement feature 30 does not limit, and the pressure that can bear according to the inwall of liquid storage tank 1 is suitably selected.The quantity that is used for the side wall element 10 of liquid storage tank 1 can suitably be selected according to the size of liquid storage tank 1, purposes or interior pressure etc., the parts of preparing in order to manufacture a liquid storage tank 1, that is, the quantity of sidewall paneling 12, substrate parts 26, circumferential faying flange 28 and reinforcement feature 30 changes according to the quantity of used side wall element 10.For example, as shown in Figure 1, when liquid storage tank 10 is used four cartridges 2 and forms, when a cartridge 2 is used four side wall element 10 to form, the quantity of the side wall element 10 of using is 16.

(1) first embodiment (not carrying out pre-assembled Fabrication procedure)

The manufacture method of the first embodiment of the present invention can comprise the first bonded structure and form operation, the first eliminating deformation operation, the second bonded structure formation operation, side wall element assembling procedure.In addition, can comprise as required the 3rd eliminating deformation operation and/or complementary eliminating deformation operation.The manufacture method of the first embodiment is different from the manufacture method of the second embodiment described later, does not carry out pre-assembled between bonded structure and forms bonded structure.

[the first bonded structure forms operation]

It is the operation that forms bonded structure 22 or 24 that the first bonded structure forms operation.Here, the bonded structure 22 shown in Fig. 4 A is described as the first bonded structure.In this operation, first, all parts is configured in to preposition, so that the end face of the side in two long limit 26L of the non-flange surface 28A of the face of a side contrary with the flange surface 28B of circumferential faying flange 28 and substrate parts 26 aligns.Now, the face 26A of a side of substrate parts 26 and non-flange surface 28A are configured in the mode of the angular cross of being scheduled to.And the interior angle side forming at the face 26A by a side and non-flange surface 28A is spaced from each other predetermined interval and configures multiple reinforcement features 30.Multiple reinforcement features 30 are preferably the first type surface that is configured to reinforcement feature 30 perpendicular to face 26A and face 28A.Can make position relationship between the long limit 28L of circumferential faying flange 28 and the long limit 26L of substrate parts 26 in fact parallel.

Then, between the long limit 26L and non-flange surface 28A of substrate parts 26, between at least a portion of the first side edge 30A of face 26A and reinforcement feature 30 and all combinations by welding between at least a portion of the Second Edge edge 30B of face 28A and reinforcement feature 30.Here said combination from the second embodiment described later, use in advance in conjunction with different, refer to when substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 are assembled into liquid storage tank mutually, for the enough intensity of the tolerance of interior pressure, weld can guarantee.In this manual, this combination is called to formal combination.

Conventionally, in soldered part, when being cooled, weld zone produces the thermal contraction of material.Therefore, when face 26A mono-side of long limit 26L is welded with face 28A, for substrate parts 26 and circumferentially faying flange 28 act on and have the application force that makes the interior angle being formed by face 26A and face 28A be less than predetermined angle.But, in the present invention, by the reinforcement feature 30 that is predetermined angular in the angle of holding up in advance between face 26A and face 28A between first side edge 30A and Second Edge edge 30B, thus the contraction in the time of can resisting welding heat and be cooled, and keep the angle between these faces.

For the binding sequence between substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30, be not particularly limited.In one embodiment, the combination between substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 is carried out in the following order: first, and each combination by circumferential faying flange 28 with multiple reinforcement features 30; Then, by circumferential faying flange 28 and substrate parts 26 combinations; Finally, by multiple reinforcement features and substrate parts 26 combinations.In another embodiment, the combination between substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 can be carried out in the following order: first, and by substrate parts 26 and circumferentially faying flange 28 combinations; Then, by multiple reinforcement features 30 each with substrate parts 26 and circumferentially faying flange 28 be combined respectively.From reduce the viewpoint of the distortion being caused by welding heat as far as possible, the combination of substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 is preferably according near the junction long side direction central authorities from circumferential faying flange 28 to be carried out towards the order of the junction of long side direction end.

[the first eliminating deformation operation]

In the manufacture method of side wall element of the present invention, the distortion that the most important thing is to eliminate bonded structure is pressed in the height of the liquid storage tank that has engaged side wall element can stand.For this reason, this method is characterised in that the operation that comprises the distortion of eliminating the bonded structure causing because of welding in the Fabrication procedure of side wall element.Fig. 6 represents the first eliminating deformation operation of the distortion of the bonded structure 22 for eliminating made.

The amount of contraction of the soldered parts that cause because of welding heat, welding capacity is more changeable must be larger.Therefore, bonded structure 22 is subject to the impact of the welding heat between welding and circumferential faying flange 28 and the multiple reinforcement feature 28 between substrate parts 26 and circumferential faying flange 28, during from the unilateral observation of the face 26A of a side of substrate parts 26, as shown in Figure 6 (a), with long limit (28L) the direction central portion of circumferential faying flange 28, to the side-prominent mode of non-flange surface 28A mono-, be out of shape.It should be noted that, for operation of the present invention is described, the overhang of having exaggerated is illustrated Fig. 6 (a), wishes this to be careful.Also identical for Fig. 7 described later (a).

Therefore, in the first eliminating deformation operation, for bonded structure 22, by the length direction both ends to bonded structure 22 and length direction central portion, apply the phase rightabout application force each other shown in the arrow of Fig. 6 (a), thereby can eliminate the distortion of bonded structure 22.The application force that can make to be applied to length direction central portion is the application force towards the direction of flange surface 28B from non-flange surface 28A, and the application force that makes to be applied to length direction both ends is the application force towards non-flange surface 28A direction from flange surface 28B.Specifically, the first eliminating deformation operation can realize according to following mode: the long side direction both ends that for example clamp the flange surface 28B of bonded structure 22 by clamping device, then for example use oil pressure hoisting crane etc., near the central authorities of the long limit 26L of substrate parts 26, apply the application force towards the direction of flange surface 28B.So, as shown in Figure 6 (b), can obtain that flange surface 28B is not out of shape, flange surface 28B accurately becomes the bonded structure 22 of plane.In fact this eliminating deformation operation cannot be eliminated after bonded structure 22 and sidewall paneling 12 are combined, therefore before bonded structure 22 and sidewall paneling 12 are combined, carries out.

At this, although shown in Figure 6, in the direction vertical with flange surface 28B with non-flange surface 28A, apply application force, the direction that applies application force is not limited to this.According to the situation of the distortion of bonded structure 22, the direction that sometimes for example has a suitable angle in the direction vertical with non-flange surface 28A and/or flange surface 28B applies application force.

[the 3rd eliminating deformation operation]

Fig. 7 represents the 3rd eliminating deformation operation of the distortion of other directions of the bonded structure 22 for eliminating made.As mentioned above, the contraction causing because of welding heat, during from the unilateral observation of the non-flange surface 28A of circumferential faying flange 28, as shown in Figure 7 (a), the situation that exists bonded structure 22 to be out of shape to one of circumferential faying flange 28 side-prominent mode with long limit (26L) the direction central portion of substrate parts 26.

Therefore, in the 3rd eliminating deformation operation, by the length direction both ends to bonded structure 22 and length direction central portion, apply the phase rightabout application force each other as shown in the arrow of Fig. 7 (a), thereby can eliminate the distortion of bonded structure 22.The application force that can make to be applied to length direction central portion is the application force towards the direction of the face 26B of the opposite side of the face of a side contrary with the face 26A of this side from the face 26A of a side of substrate parts 26, and the application force that makes to be applied to length direction both ends is the application force towards the face 26A of a side from the face 26B of opposite side.Specifically, the 3rd eliminating deformation operation can realize according to following mode: the long side direction both ends that for example clamp the another side 26B of the substrate parts 26 of bonded structure 22 by clamping device, then for example use oil pressure hoisting crane etc., near the central authorities of the circumferential long limit 28L of faying flange 28, apply the application force towards the direction of the face 26B of opposite side.So, as shown in Figure 7 (b) shows, can obtain that the face 26B of the opposite side of substrate parts 26 is not out of shape, the face 26B of opposite side accurately becomes the bonded structure 22 of plane.

In Fig. 7, although be illustrated in the direction vertical with the face 26A of a side of substrate parts 26 and the face 26B of opposite side, apply application force, the direction that applies application force is not limited to this.According to the situation of the distortion of bonded structure 22, the direction that sometimes for example has a suitable angle in the direction vertical with the face 26A of a side and/or the face 26B of opposite side applies application force.

At this, when only from prevent high-capacity liquid storage tank 1 leak of liquid viewpoint consider time, the 3rd eliminating deformation operation may not be carried out.That is, the leak of liquid of high-capacity liquid storage tank 1 does not conventionally accurately become plane and may occur at the flange surface 28B of circumferential faying flange 28.Therefore, as long as flange surface 28B becomes plane, even if bonded structure 22 is out of shape in the outstanding mode of the direction vertical with the face 26A of a side of substrate parts 26 or the face 26B of opposite side, this distortion can not become the problem that causes liquid to leak from high-capacity liquid storage tank 1 yet.Therefore, the 3rd eliminating deformation operation also can be omitted.

[the second bonded structure forms operation]

Then,, by the identical operation of the 3rd eliminating deformation operation that forms operation, the first eliminating deformation operation with the first above-mentioned bonded structure and carry out as required, form the second bonded structure.Here, using the bonded structure shown in Fig. 3 24 as the second bonded structure.

[bending operation of sidewall paneling]

According to the quantity of the side wall element 10 for the manufacture of liquid storage tank 1, make sidewall paneling 12 to become the mode bending of predetermined curvature.When for example for the liquid storage tank 1 of the cartridge cascade type shown in Fig. 1, can make sidewall paneling 12 become circular-arc mode bending to grow limit, when for example 1 ' time of liquid storage tank for the single cartridge type shown in Fig. 2, can make sidewall paneling 12 become circular-arc mode bending with minor face.The method of curved side wallboard 12 can adopt the method for well known to a person skilled in the art.

[side wall element assembling procedure]

Then,, in side wall element assembling procedure, sidewall paneling 12 and the first bonded structure 22 and the second bonded structure 24 can be carried out to combination.In side wall element assembling procedure, comprise following operation: by welding, one side 14 of the opposed peripheral edge portion of the sidewall paneling being bent 12 14,16 is combined with the long limit 26L of the substrate parts 26 of the first bonded structure 22, by welding, the opposite side of peripheral edge portion 16 is combined with the long limit 26L of the substrate parts 26 of the second bonded structure 24.From the viewpoint of the tolerance for interior pressure of liquid storage tank 1, consider, combination between peripheral edge portion 14,16 and the bonded structure 22,24 of sidewall paneling 12 is preferably, as mentioned above, the mode that according to the face 26B of the opposite side of substrate parts 26, roughly becomes same plane towards the face 12B of the inner side of liquid storage tank 1 towards the face of the inner side of liquid storage tank 1 in sidewall paneling 12 is combined.

[complementary eliminating deformation operation]

But, in side wall element of the present invention, the heat producing when the long limit 26L that the length of the minor face 26S of the substrate parts 26 of the bonded structure 22 shown in Fig. 4 A is preferably at the substrate parts 26 of welded joint structure 22 and the peripheral edge portion 14 of sidewall paneling 12 can not be delivered to the length of the degree of circumferential faying flange 28.Heat when this is because if welds is passed to circumferential faying flange 28, the hidden danger that exists the flange surface 28B of circumferential faying flange 28 to deform.But in fact, the heat in the time of sometimes cannot avoiding welding is delivered to circumferential faying flange 28, in this case, in the side wall element 10 after combining sidewall paneling 12 and bonded structure, circumferentially may residual deformation in faying flange 28.And, even in the case of not occurring distortion that the combination of sidewall paneling and bonded structure causes, also exist the distortion occurring in the operation before this combination to fail to be completely eliminated and remain in situation wherein.

In an embodiment of the invention, side wall element manufacture method can comprise the auxiliary eliminating deformation operation for eliminating these distortion.According to the deformation producing in bonded structure, this operation can be any one or two kinds in above-mentioned the first eliminating deformation operation and the 3rd eliminating deformation operation.

(2) second embodiments (carrying out pre-assembled Fabrication procedure)

The manufacture method of the second embodiment of the present invention can comprise the first eliminating deformation and the first bonded structure forms operation, the second bonded structure forms operation, side wall element assembling procedure.And, as required, can comprise the second eliminating deformation operation, the 3rd eliminating deformation operation and/or complementary eliminating deformation operation.In the manufacture method of the second embodiment, different from the manufacture method of the first embodiment, making substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 intermediate of pre-combination each other, and to two intermediates carry out pre-assembled and make its restrained after, each parts is carried out in conjunction with (with respect to pre-combination, can be referred to as formal combination).By making the parts of intermediate soldered each other under the restrained state of two intermediates, and under this state, weld zone is cooled, thereby make the distortion that occurs when cooling suppressed because of residing restrained condition, result can be manufactured the bonded structure of having eliminated distortion.

[the first eliminating deformation and the first bonded structure form operation]

It is the operation that forms the first bonded structure when eliminating distortion that the first eliminating deformation and the first bonded structure form operation.Here, using the bonded structure 22 shown in Fig. 4 A as the first bonded structure, using the intermediate in operation as the first intermediate 22' and the second intermediate 22 ".Fig. 8 represents the first intermediate 22', and Fig. 9 represents the first intermediate body 22' and the second intermediate 22 " carries out pre-assembled and makes its restrained state.

In this operation, identical with the first above-mentioned embodiment, first, all parts is configured in to preposition, so that the end face of the side in two long limit 26L of the non-flange surface 28A of the face of a side contrary with the flange surface 28B of circumferential faying flange 28 and substrate parts 26 aligns.Now, the face 26A of a side of substrate parts 26 and non-flange surface 28A are configured in the mode of the angular cross of being scheduled to.And the interior angle side forming at the face 26A by a side and non-flange surface 28A is spaced from each other predetermined interval and configures multiple reinforcement features 30.Multiple reinforcement features 30 are preferably the first type surface that is configured to reinforcement feature 30 perpendicular to face 26A and face 28A.Can make the position relationship between the long limit 28L of circumferential faying flange 28 and the long limit 26L of substrate parts 26 be actually parallel.

Then, as shown in Figure 8, between the long limit 26L and non-flange surface 28A of substrate parts 26, between face 26A and the first side edge 30A of reinforcement feature 30 and all pre-combinations by welding between the Second Edge edge 30B of face 28A and reinforcement feature 30.Here said pre-combination refers to, substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 are configured to each other in desired position, enough to keep the required minimal intensity of position relationship each other to carry out the state welding.Pre-is that the welding of the length of 2cm left and right realizes in conjunction with carrying out for example length by the place in needs combination.Accordingly, form the first intermediate body 22' shown in Fig. 8.

For substrate parts 26, circumferentially the pre-binding sequence between faying flange 28 and multiple reinforcement feature 30 is not particularly limited.In one embodiment, the pre-combination between substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 is carried out in the following order: first, and each the pre-combination by circumferential faying flange 28 with multiple reinforcement features 30; Then, by circumferential faying flange 28 and the pre-combination of substrate parts 26; Finally, by multiple reinforcement features and the pre-combination of substrate parts 26.In another embodiment, the pre-combination between substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 can be carried out in the following order: first, and by substrate parts 26 and the circumferentially pre-combination of faying flange 28; Then, by each and substrate parts 26 of multiple reinforcement features 30 and circumferentially faying flange 28 pre-combinations respectively.From reducing the viewpoint of the distortion being caused by welding heat, the pre-combination of substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 is preferably according near the junction long limit 28L direction central authorities from circumferential faying flange 28 to be carried out towards the order of the junction of minor face 28S direction as far as possible.

Then, according to the operation identical with the operation that forms the first intermediate 22', form the second intermediate 22 ".At this, in the present embodiment, supposing the second intermediate 22 " finally becomes the bonded structure different from bonded structure 24 and describes.In another embodiment, can be using the intermediate that becomes bonded structure 24 as intermediate 22 "; in another embodiment, in the time of also can be using assembling wet tank 1, be situated between by bonded structure 22 and circumferentially the intermediate of faying flange and the assembled bonded structure that becomes assembly object as intermediate 22 ".

Then, as shown in Figure 9, the first intermediate 22' forming and the second intermediate 22 " is preassembled and restrained by the flange surface 28B of circumferential faying flange 28.Can use machanical fastener by the first intermediate 22' and the second intermediate 22 and " engage and retrain.

Then, at least in the first intermediate 22', by each substrate parts 26, circumferentially each mutually combine (that is, formal combination) of faying flange 28, multiple reinforcement feature 30.By welding, carry out the part of combination, as mentioned above, the contraction that can produce material.As the first embodiment, in the case of not by pre-assembled constraint with under bonded structure state alone in conjunction with each parts, as shown in Figure 6 (a), can towards the side-prominent mode of non-flange surface 28A mono-, deform with the long side direction central portion of circumferential faying flange 28.In the first embodiment, forming after the first bonded structure, by apply the application force shown in the arrow of Fig. 6 (a) at the first bonded structure, thereby can eliminate produced distortion.With respect to this, in the second embodiment, by at constraint the first intermediate 22' and the second intermediate 22 " state under carry out in conjunction with (formal in conjunction with); thereby can be applied to all the time the first intermediate 22' and the second intermediate 22 at the application force shown in the arrow of Fig. 6 (a) " each state under, carry out welding between parts and afterwards cooling.Circumferentially the distortion of faying flange occurs conventionally when cooling, but because two intermediates are still in restrained state when cooling, therefore can be when eliminating distortion (or, when suppressing the generation of distortion) form the first bonded structure.

Identical with the first embodiment, when face 26A mono-side to long limit 26L and face 28A have carried out welding, can to substrate parts 26 and circumferentially faying flange 28 apply the application force that makes the interior angle being formed by face 26A and face 28A be less than predetermined angle.But, in the present invention, by holding up the reinforcement feature 30 that angle between first side edge 30A and Second Edge edge 30B is predetermined angle between face 26A and face 28A, thereby the contraction in the time of can resisting welding heat and be cooled keeps the angle between these faces.

In addition, identical with the first embodiment, for the combination between substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 (formal combination) order, be not particularly limited.In one embodiment, the combination between substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 is carried out in the following order: first, and each combination by circumferential faying flange 28 with multiple reinforcement features 30; Then, by circumferential faying flange 28 and substrate parts 26 combinations; Finally, by multiple reinforcement features 30 and substrate parts 26 combinations.In another embodiment, the combination between substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 can be carried out in the following order: first, and by substrate parts 26 and circumferentially faying flange 28 combinations; Then, by multiple reinforcement features 30 each with substrate parts 26 and circumferentially faying flange 28 be combined respectively.From reduce the viewpoint of the distortion being caused by heat as far as possible, the combination of substrate parts 26, circumferentially faying flange 28 and multiple reinforcement feature 30 is preferably according near the junction long limit 28L direction central portion from circumferential faying flange 28 to be carried out towards the order of the junction of minor face 28S direction.

Finally, at the first intermediate 22' in pre-assembled state and the second intermediate 22 " in, untie by the constraint of machanical fastener, remove pre-assembled, thereby the first intermediate 22' finally becomes the first bonded structure 22.

[the second eliminating deformation operation]

At the first above-mentioned eliminating deformation and the first bonded structure, form in operation, can when bonded block, eliminate near the long side direction central authorities of circumferential faying flange 28 in one of non-flange surface 28A side-prominent distortion, form the first bonded structure.But, only by this operation, also there is the situation of the distortion that can not eliminate the first bonded structure.In this case, by the length direction central portion to the first bonded structure 22 and length direction both ends, apply respectively the application force of the direction from non-flange surface 28A to the application force of the direction of flange surface 28B with from flange surface 28B to non-flange surface 28A simultaneously, thereby carry out further eliminating the second eliminating deformation operation of the distortion of the first bonded structure.The second eliminating deformation operation can be undertaken by the method identical with the first eliminating deformation operation in the first embodiment.

In the first formed bonded structure 22,, for example, can there is near situation about deforming towards one of flange surface 28B side-prominent mode with the long side direction central authorities of circumferential faying flange 28 in the state of the welding when pre-assembled.In this case, the second eliminating deformation operation can be also to apply respectively the application force of the application force of the direction from flange surface 28B to non-flange surface 28A and the direction from flange surface 28B to non-flange surface 28A by the length direction central portion to the first bonded structure 22 and length direction both ends simultaneously, thereby further eliminates the operation of the distortion of the first bonded structure.

[the 3rd eliminating deformation operation]

After the first eliminating deformation and the first bonded structure formation operation, the first bonded structure 22 of the second embodiment is during from the unilateral observation of the non-flange surface 28A of circumferential faying flange 28, as shown in Figure 7 (a), the long side direction central portion of substrate parts 26 is not eliminated to one of circumferential faying flange 28 side-prominent distortion.Therefore,, when there is this distortion, can further carry out the 3rd eliminating deformation operation.The 3rd eliminating deformation operation can be undertaken by the method identical with the 3rd eliminating deformation operation of the first embodiment.

[the second bonded structure forms operation]

Then, by forming with above-mentioned the first eliminating deformation and the first bonded structure the operation (as required, can also carry out the second eliminating deformation operation and the 3rd eliminating deformation operation) that operation is identical thus can form the second bonded structure.Here, using the bonded structure shown in Fig. 3 24 as the second bonded structure.

[other operation]

Then, identical with the first embodiment, make sidewall paneling 12 bendings, in conjunction with sidewall paneling 12 and the first bonded structure 22 and the second bonded structure 24, and carry out as required complementary eliminating deformation operation, form thus side wall element 10.

3. manufacture liquid storage tank

Multiple side wall element 10 of using multiple side wall element 10 of manufacturing method according to the invention manufacture and/or having a structure of the present invention can be manufactured liquid storage tank 1.Liquid storage tank 1 shown in Fig. 1 can be manufactured by the following method: not shown at the diapire 3(preparing in addition) on stacked and engage the cartridge 2 forming along circumferentially engaging multiple side wall element 10, the cartridge 2 of the requirement that further sequential cascade forms in the same way on it is also engaged with each other it.In addition, the liquid storage tank 1' shown in Fig. 2 can be by not shown at the diapire 3'(preparing in addition) on along circumferentially engaging multiple side wall element 10', form cartridge 2' and manufacture.Although not diagram, can arrange corridor portion that people can walk about and for climbing the ladder of corridor portion on liquid storage tank 1 or 1'.This corridor portion can also be used as cripple when assembling liquid storage tank.The following describes the manufacture of the liquid storage tank 1 shown in Fig. 1.

In the case of using stacked and as liquid storage tank 1 along circumferentially engaging cartridge 2 that multiple side wall element 10 form, as shown in Figure 1, the location optimization of the bonded structure 22,24 of each side wall element 10 is stacked in the mode mutually staggering along short transverse on each cartridge 2.For example, as the liquid storage tank 1 of Fig. 1 in the situation that a cartridge 2 is used 4 side wall element 10, preferably, from the cartridge 2 of several the 2nd layer is with respect to from the cartridge 2 of several the 1st layer is stacked to rotate the state of 45 degree plane angles below below, the state that the cartridge 2 of the 3rd layer rotates 45 degree plane angles with respect to the cartridge 2 of the 2nd layer is stacked.The cartridge 2 of the cartridge 2 of the 4th layer with respect to the 3rd layer is also stacked by identical mode.So, by the bonding part with bonded structure, in short transverse, do not concentrate on the stacked cartridge 2 of mode of row, the liquid storage tank 1 of can being balanced property good structure.

[diapire]

Diapire 3 for liquid storage tank 1 is not particularly limited its structure, thickness, material etc., when for high-capacity liquid storage tank 1, as long as the suitably structure, thickness, material etc. of receiving fluids of state can not cause internal liquid to leak.In one embodiment, diapire 3 is preferably in advance the multiple unit that are manufactured into the pre-sizing that is applicable to carrying in fabrication shop etc., manufactured multiple unit to scene is set, are then used the machanical fasteners such as such as screw bolt and nut assembled by vehicle conveying.The most peripheral of diapire can have the junction surface for engaging with cartridge 2.

[machanical fastener]

Cartridge 2 can be by making the flange surface 28B of the circumferential faying flange 28 on the bonded structure of adjacent side wall element 10 opposed, and use for example machanical fastener be bonded with each other and form.Joint between adjacent bonded structure is preferably by the circumferential faying flange 28 at each bonded structure through hole 32 is set, and inserting bolt in set through hole 32 connects this bolt and carries out with nut.

In liquid storage tank 1, conventionally, the below of tank, the interior pressure being subject on wall is large.Therefore, the intensity engaging between adjacent bonded structure is preferably compared with the cartridge 2 with top, cartridge 2 one sides of below are larger.As the method that realizes this bond strength, mainly can adopt any one or two kinds in two kinds of methods below.Its one is, the cartridge 2 of below is more used the high mode of intensity of machanical fastener itself; Another kind is, the cartridge 2 of below, and the quantity of the machanical fastener using is more.

Adopt in the former situation, by the diameter chap of the bolt that makes to use as machanical fastener, thereby can improve bond strength.Therefore, in this case, the size that is arranged on the through hole 32 of the circumferential faying flange 28 of side wall element 10 is preferably and is used in liquid storage tank 1 below, and the size of through hole is larger.In addition, also can adopt the cartridge 2 of below, more use the mode of the fastener of the material that mechanical strength is high.

Adopt in the latter's situation, the quantity that is arranged on the through hole 32 of the circumferential faying flange 28 of side wall element 10 is preferably the below that is used in liquid storage tank 1, and quantity is more.In this case, along the stacked cartridge 2 of short transverse and manufacture liquid storage tank 1 in, preferably, below side wall element 10, make the quantity of reinforcement feature 30 more.

[sealing layer]

Opposed and when it is engaged with each other, preferably, between opposed flange surface 28B, be configured for the sealing layer that prevents inner leak of liquid at the flange surface 28B that makes the circumferential faying flange 28 in adjacent side wall element 10.For sealing layer, do not limit, but preferably use hydroexpansivity elastic sealing layer, at flange surface 28B, across through hole 32, be configured in corresponding to the region of tank inner side with corresponding to certain one or both sides in the region in tank outside.And, on flange surface 28B, across sealing layer and in the region corresponding to tank inner side with corresponding to certain one or both sides in the region in tank outside, can further configure other sealing layers of silicon sealing layer etc.

In order to obtain failure-free leak of liquid preventing effectiveness more, for example, as shown in figure 10, can be provided for configuring at the flange surface 28B of circumferential faying flange 28 groove 40 and/or 41 of sealing layer.By the internal configurations sealing layer at the

groove

40,41 so arranging, thereby even if having adjacent circumferential faying flange 28 is strongly engaged each other, also can prevent the impaired advantage of sealing layer.If under the state that this

groove

40,41 is not set and at flange surface 28B configuration sealing layer,, when circumferential faying flange 28 is strongly engaged, exist sealing layer damaged, reduce the situation of the effect that prevents leak of liquid.And, as another advantage, by being provided for configuring the

groove

40,41 of sealing layer, thereby when assembling liquid storage tank, can obtain the effect of avoiding sealing layer dislocation and the effect of easily carrying out the aligned in position of adjacent circumferential faying flange 28.

[short transverse faying flange]

In the case of the liquid storage tank 1 by manufacturing along the stacked multiple cartridges 2 that multiple side wall element 10 are obtained along circumferential joint of short transverse, by the opposed short transverse end in each side wall element 10, short transverse faying flange is set, use for example machanical fastener to engage the opposed flange surface of adjacent short transverse faying flange, thus can be by stacked cartridge 2.Along the stacked cartridge of short transverse in the situation that, flange surface can be according to the deadweight of cartridge 2 and closure, and according to the deadweight of cartridge 2 and the closing force of closed flange surface much larger than hydraulic pressure, therefore short transverse faying flange is used the faying flange of common form of the prior art.For this faying flange, can, by the whole length range of the short transverse end of side wall element 10, with the tabular body of mode welded metal of vertically holding up from side wall element 10, form.

But, in order further to improve the bond strength of short transverse, as shown in figure 11, more preferably, can be also that the angle steel material (also referred to as mountain structural section) of L font is used as short transverse faying flange using cross sectional shape.Its reason be mainly following some.The first, the short transverse faying flange 50 being formed by angle steel material, the board 51 of one side with the gamut on opposed two the long limits of board 51 in be welded on side wall element 10.Therefore, (joint between short transverse faying flange 50 and side wall element 10 is divided into two places, the bound fraction of two long limits and unit), having can dispersive stress, and is difficult to the welding heat of short transverse faying flange 50 to be delivered to the advantage of flange itself.With respect to this, in side wall element 10, welded the short transverse faying flange of form of tabular body, because junction is positioned at a place or nearer place, therefore exist stress easily to concentrate, welding heat is passed to flange and may produces the problem of distortion.

The second, the short transverse faying flange 50 consisting of angle steel material, compared with the faying flange of tabular body, even if make the thickness attenuation of the board 52 of flange surface, also can keep same intensity.The short transverse faying flange 50 that this flange surface is thin, when using machanical fastener to engage opposed flange surface, more can improve close property.With respect to this, in the case of the faying flange of tabular body, because the thickness of flange surface becomes large, while therefore using machanical fastener to engage, be difficult to improve close property.

Although do not illustrate in Figure 11, the sealing layer that prevents leak of liquid be also preferably set on the flange surface 52 of short transverse faying flange 50.The detailed content of kind, collocation method and the position etc. of sealing layer is identical with the situation of circumferential faying flange 28.In addition, identical with the flange surface 28B of circumferential faying flange 28, on flange surface 52, also can be provided for configuring the groove of sealing layer.

Claims

1. the manufacture method of a side wall element, this side wall element is for the manufacture of liquid storage tank, the sidewall that this liquid storage tank at least comprises diapire, consist of a cartridge or multiple cartridge and the sidewall that form stacked along short transverse, at least one of described cartridge consists of along circumferentially engaging multiple side wall element, the manufacture method of described side wall element is characterised in that, comprises:

(A) operation of the parts of side wall element described in composition of preparation, in this operation, prepare:

The sidewall paneling of rectangle;

Be arranged on substrate parts that comprise, that there is long limit and minor face in each the bonded structure of opposed two peripheral edge portion of described sidewall paneling, there is the circumferential faying flange of long limit and minor face and multiple reinforcement features of two adjacent edge parts of the angular cross that has to be scheduled to;

(B) the first bonded structure forms operation, with described circumferentially in conjunction with the face of side flange and non-flange surface flange surface opposition side and described substrate parts according to the mode of predetermined angular cross, and the position relationship paralleling with the long limit of described circumferential faying flange and the long limit of described substrate parts makes described circumferential faying flange and described substrate parts combination, and in the interior angle side being formed by the face of described non-flange surface and a described side, by making described multiple reinforcement feature, in the mode that is separated from each other interval and holds up, each at least a portion of two adjacent edge parts is combined with the face of described non-flange surface and a described side respectively, form thus the first bonded structure,

(C) the first eliminating deformation operation, by the length direction central portion to described the first bonded structure and length direction both ends on described the first bonded structure apply respectively simultaneously from described non-flange surface towards the application force of the direction of described flange surface and from described flange surface the application force towards the direction of described non-flange surface, eliminate thus the distortion of described the first bonded structure;

(D) the second bonded structure forms operation, by the operation identical with the operation of described (A)～(C), forms the second bonded structure;

(E) side wall element assembling procedure, by bending a side of opposed described peripheral edge portion of described sidewall paneling and the long limit of the described substrate parts of described the first bonded structure be combined, the opposite side of described peripheral edge portion is combined with the long limit of the described substrate parts of described the second bonded structure.

2. the manufacture method of a side wall element, this side wall element is for the manufacture of liquid storage tank, the sidewall that this liquid storage tank at least comprises diapire, consist of a cartridge or multiple cartridge and the sidewall that form stacked along short transverse, at least one of described cartridge consists of along circumferentially engaging multiple side wall element, the manufacture method of described side wall element is characterised in that, comprises:

The sidewall paneling of rectangle;

(B) the first eliminating deformation and the first bonded structure form operation, when eliminating distortion, form the first bonded structure,

With described circumferentially in conjunction with the face of side flange and non-flange surface flange surface opposition side and described substrate parts according to the mode of described predetermined angular cross, and the position relationship paralleling with the long limit of described circumferential faying flange and the long limit of described substrate parts makes described circumferential faying flange and the pre-combination of described substrate parts, and in the interior angle side being formed by the face of described non-flange surface and a described side, by make described multiple reinforcement feature with the mode that is separated from each other interval and holds up by described two adjacent edge parts each at least a portion respectively with the pre-combination of face of described non-flange surface and a described side, form thus the first intermediate,

By the operation identical with the operation of making described the first intermediate, make the second intermediate,

Described the first intermediate and described the second intermediate are situated between pre-assembled by flange surface separately and under the state that retrains, mutually combine to each of the described circumferential faying flange of the first intermediate described in major general and described substrate parts and described multiple reinforcement features

Remove the pre-assembled of described the first intermediate and described the second intermediate and obtain described the first bonded structure;

(C) the second bonded structure forms operation, according to forming the second bonded structure with the operation of described (A)～(B) identical;

(D) side wall element assembling procedure, by bending a side of opposed described peripheral edge portion of described sidewall paneling and the long limit of the described substrate parts of described the first bonded structure be combined, the opposite side of described peripheral edge portion is combined with the long limit of the described substrate parts of described the second bonded structure.

3. method according to claim 2, is characterized in that, described the second bonded structure is formed by described the second intermediate.

4. method according to claim 2, it is characterized in that, after the first eliminating deformation and the first bonded structure formation operation, further comprise the second eliminating deformation operation, by the length direction central portion to described the first bonded structure and length direction both ends on described the first bonded structure apply respectively simultaneously from described non-flange surface towards the application force of the direction of described flange surface and from described flange surface the application force towards the direction of described non-flange surface, eliminate thus the distortion of described the first bonded structure.

5. according to the method described in any one in claim 1 to 4, it is characterized in that, further comprise the 3rd eliminating deformation operation, by the length direction central portion to described the first bonded structure and length direction both ends on described the first bonded structure apply respectively simultaneously from the described side of described substrate parts facing to the application force of the direction of the face of the opposite side of the face opposition side of this side with from the application force of the direction of the face facing to a described side of described opposite side, eliminate thus the distortion of described the first bonded structure.

6. according to the method described in any one in claim 1 to 5, it is characterized in that, the described combination of described circumferential faying flange, described substrate parts and described multiple reinforcement features and/or described pre-combination are carried out in the following order:

By each combination of described circumferential faying flange and described multiple reinforcement features;

Described circumferential faying flange is combined with described substrate parts;

Described multiple reinforcement features are combined with described substrate parts.

7. according to the method described in any one in claim 1 to 5, it is characterized in that, the described combination of described circumferential faying flange, described substrate parts and described multiple reinforcement features and/or described pre-combination are carried out in the following order:

Each of described multiple reinforcement features is combined respectively with described circumferential faying flange and described substrate parts.

8. according to the method described in any one in claim 1 to 5, it is characterized in that, the described combination of described circumferential faying flange, described substrate parts and described multiple reinforcement features and/or described pre-combination with respect to the long side direction of described circumferential faying flange the order of the junction near junction central portion to short side direction carry out.

9. according to the method described in any one in claim 1 to 5, it is characterized in that, it is narrower than the interval of length direction end that described multiple reinforcement features are combined into the interval of the length direction central portion that makes described circumferential faying flange.

10. according to the method described in any one in claim 1 to 5, it is characterized in that, described reinforcement feature is tabular body, and comprises:

Than the minor face of described substrate parts, grow and be incorporated into the first side edge of described substrate parts and described sidewall paneling;

With described predetermined angle and described first side edge, intersect and be incorporated into the Second Edge edge of described non-flange surface;

Opposed and there is the 3rd edge part corresponding to the length of the minor face of described substrate parts with described first side edge;

Opposed and link the 4th edge part of one end of described first side edge and one end of described the 3rd edge part with described Second Edge edge.

11. methods according to claim 10, is characterized in that, further comprise:

In described multiple reinforcement features, in the part corresponding with the intersection point of described first side edge and described Second Edge edge, form the operation of notch; And the part corresponding at the binding site with described substrate parts and described sidewall paneling of described first side edge forms one or both in the operation of notch.

12. according to the method described in any one in claim 1 to 5, it is characterized in that, the mode that described substrate parts is holded up with the part beyond the short side direction end of the non-flange surface from described circumferential faying flange is incorporated into described circumferential faying flange.

13. according to the method described in any one in claim 1 to 5, it is characterized in that, the long side direction that is further included in described circumferential faying flange is formed for the operation of the multiple through holes that insert machanical fastener.

14. methods according to claim 13, is characterized in that, described multiple through holes are greater than the diameter of long side direction end at the diameter of the long side direction central portion of described circumferential faying flange.

15. according to the method described in any one in claim 1 to 5, it is characterized in that, the described flange surface that is further included in described circumferential faying flange is formed for the operation of the groove that packs sealing layer into.

16. according to the method described in any one in claim 1 to 5, it is characterized in that, being further included in opposed two short transverse ends is the operation of the short transverse faying flange of L word shape in conjunction with cross section.

17. 1 kinds of side wall element, be configured for the cartridge of liquid storage tank, the sidewall that this liquid storage tank at least comprises diapire, consist of a cartridge or multiple cartridge and the sidewall that form stacked along short transverse, at least one of described cartridge consists of along circumferentially engaging multiple side wall element, described side wall element is characterised in that, comprises:

The sidewall paneling of bending rectangle;

Be arranged on each pair of engaging structure of opposed two peripheral edge portion of described sidewall paneling,

Each of described pair of engaging structure comprises:

There is the substrate parts on minor face and long limit;

There is the circumferential faying flange on minor face and long limit;

Multiple reinforcement features of two adjacent edge parts of the angular cross that has to be scheduled to,

Described circumferential faying flange and described substrate parts with described circumferentially in conjunction with the face of side flange and non-flange surface flange surface opposition side and described substrate parts according to the mode of described predetermined angular cross, and the position relationship combination paralleling with the long limit of described circumferential faying flange and the long limit of described substrate parts

In the interior angle side being formed by the face of described non-flange surface and a described side, the mode that described multiple reinforcement features are holded up to be separated from each other interval is combined each of described two adjacent edge parts respectively with the face of described non-flange surface and a described side,

On each each long limit of described substrate parts in conjunction with described pair of engaging structure of the opposed described peripheral edge portion of described sidewall paneling.

18. side wall element according to claim 17, is characterized in that, in the described interval between described multiple reinforcement features, the interval of the length direction central portion of described circumferential faying flange is narrower than the interval of length direction end.

19. side wall element according to claim 17, is characterized in that, described multiple reinforcement features are tabular body, and comprise:

20. side wall element according to claim 19, it is characterized in that, in described multiple reinforcement features, in certain one or both sides of the part corresponding with the intersection point of described first side edge and described Second Edge edge and part corresponding to the binding site with described substrate parts and described sidewall paneling in described first side edge, form notch.

21. side wall element according to claim 17, is characterized in that, the mode that described substrate parts is holded up with the position beyond the short side direction end of the non-flange surface from described circumferential faying flange is incorporated into described circumferential faying flange.

22. side wall element according to claim 17, is characterized in that, are formed for inserting multiple through holes of machanical fastener on the long side direction of described circumferential faying flange.

23. side wall element according to claim 22, is characterized in that, described multiple through holes are greater than the diameter of long side direction end at the diameter of the long side direction central portion of described circumferential faying flange.

24. side wall element according to claim 17, is characterized in that, are formed for packing into the groove of sealing layer at the described flange surface of described circumferential faying flange.

25. side wall element according to claim 17, is characterized in that, in opposed two short transverse ends, are the short transverse faying flange of L word shape in conjunction with cross section.

26. 1 kinds of liquid storage tanks, is characterized in that, have the side wall element that right to use requires the method for recording in any one in 1 to 16 to manufacture.

27. 1 kinds of liquid storage tanks, is characterized in that, have the side wall element of recording in any one in claim 17 to 25.