Pounder-shape connection device for spherical storage tank support
Technical field
The invention belongs to the connection set of spherical storage tank, particularly relate to a kind of pounder-shape connection device for spherical storage tank support.
Background technique
Spherical storage tank is the large-scale pressure store container of using always hereinafter to be referred as spherical tank.Pillar is the support member of spherical tank housing, is supporting all-mass such as tank body, material, insulation, ladder landing platform, fire prevention spray equipment and snow load, also will guarantee the reliability under wind load and earthquake loading effect.Current use more general storage tank support be 4 kinds of corbeling forms that NBS " steel spherical storage tank " GB 12337-1998 recommend to use, but its deficiency is arranged all:
1, the structural type of basic model pillar because the minimum point that Spherical Tank Shell Plates is connected with circular columns welding space is narrow and small, is difficult for guaranteeing the weldquality at this place, and the basic model pillar is eliminated gradually;
2, the structural type of supporting plate t shore is the improvement to the basic model pillar, increases supporting plate, strengthens the welding space, improves welding condition, improves the weldquality of minimum point, and shortcoming is that Area of bearing is little, and the distance of bottom weld seam is near;
3, the structural type of crimp t shore also is the improvement to the basic model pillar, by the minimum point crimp, strengthens the welding space, improves welding condition, and shortcoming is that Area of bearing is little;
4, the structural type of U-shaped column has increased the distance of bottom weld seam, several years ago is widely used.One of shortcoming of this structure: the weld seam extending direction of U-shaped post and connecting plate and Spherical Tank Shell Plates has right angle, many places flex point, and weldquality is difficult for guaranteeing that the stress of weld seam is bad.Two of the shortcoming of this structure: the steel plate thickness of connecting plate is big, and welding capacity is big, causes the welding deformation of Spherical Tank Shell Plates easily, and connecting plate has formed rigid support to Spherical Tank Shell Plates, and is big to the deformation constrain of Spherical Tank Shell Plates.
Existing patent No. ZL200320111645.X, name are called " the upper supporting column long-round-shape linkage structure of spherical storage tank " public technology, though solved the problems referred to above to a certain extent, its Area of bearing is little, support width is little, poor stability.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, provides that a kind of Area of bearing is big, the pounder-shape connection device for spherical storage tank support of good stability.
Pounder-shape connection device for spherical storage tank support of the present invention is made of pillar, supporting plate, connecting plate, perpendicular shrouding and gusset.Pillar transversal profile wherein is V-arrangement and from top to bottom connects the width increase that going to the bottom of increase sealed and supported mutually with pillar by the horizontal supporting plate of ellipse, erects side V-arrangement opening, its upper edge of shrouding sealing pillar lower end and agrees with mutually with the contact jaw of supporting plate.The end opening of pillar and the end opening of perpendicular shrouding seal with connecting plate, in the bottom of connecting plate the cross positioning plate is arranged, lateral opening from the top of pillar to the supporting plate of going to the bottom is beater shape, the gusset that tangles is in length and breadth arranged in the cavity of V-strut, the outer of gusset is fixedly connected with pillar, supporting plate, perpendicular shrouding and connecting plate respectively, and gusset and beater shape edge of opening leave the gap.
Pounder-shape connection device for spherical storage tank support of the present invention is reasonable in design, Area of bearing is big, the good stability of self good rigidly, supported spherical tank.
Description of drawings
Fig. 1 is the structural representation of pounder-shape connection device for spherical storage tank support of the present invention.
Fig. 2 is the plan view of pounder-shape connection device for spherical storage tank support of the present invention.
Fig. 3 is the left view of pounder-shape connection device for spherical storage tank support of the present invention.
Fig. 4 is the plan view of pounder-shape connection device for spherical storage tank support of the present invention.
Fig. 5 is the structural representation of fundamental form, U-shaped column type and pounder-shape connection device Area of bearing.
Embodiment
Pounder-shape connection device for spherical storage tank support of the present invention is made of pillar 1, supporting plate 2, connecting plate 3 and gusset 4, perpendicular shrouding 5.The transversal profile of described pillar 1 is V-arrangement and from top to bottom connects the width increase, going to the bottom of increasing sealed and supported mutually with pillar 1 by the horizontal supporting plate 2 of ellipse, agree with mutually with the contact jaw of supporting plate 2 side V-arrangement opening, its upper edge of perpendicular shrouding 5 sealing pillars 1 lower end, the end opening of the end opening of pillar 1 and perpendicular shrouding 5 has cross positioning plate 6 with connecting plate 3 sealings in the bottom of connecting plate 3.Lateral opening from the top of pillar 1 to the supporting plate 2 of going to the bottom is beater shape, the gusset 4 that tangles is in length and breadth arranged in the cavity of V-strut, the outer of gusset 4 is fixedly connected with pillar 1, supporting plate 2, perpendicular shrouding 5 and connecting plate 3 respectively, and gusset 4 leaves the gap with beater shape edge of opening.
The main body V-strut 1 of the design's structure presents " V " shape in the view projection of Fig. 4, so be called the V-arrangement columniation structure.
The design's structure characteristic is:
The part that directly is welded to connect with Spherical Tank Shell Plates is body supports part V-strut 1, the oval laterally supporting plate 2 of auxiliary supports.In Fig. 3, the view projection of Spherical Tank Shell Plates and part attachment weld presents beater shape, the oval laterally attachment weld projection image tup of supporting plate 2, the attachment weld projection image hammer body of V-strut 1.The characteristics of beater shape weld seam are, wait wall thickness, orthodrome, continuous welding, sealing weldering, and the welding space of whole piece weld seam is open, is easy to guarantee the welding quality of weld seam, and the stress of weld seam is good.
It is the butt joint welding that oval laterally supporting plate 2 is connected with the level of V-strut 1, and vertically connecting is perpendicular shrouding 5 of between folder, is welded to connect.
Connecting plate 3 is welded to connect with all adjacent elements, and these adjacent elements are: V-strut 1; Perpendicular shrouding 5; Gusset 4; Cross positioning plate 6.Have drain hole 7 on the connecting plate 3, derive condensed water.After cross positioning plate 6 inserted and realizes in the adjacent lower supporting rod that centering is installed, connecting plate 3 was welded to connect with lower supporting rod.
Being welded to connect between V-strut 1, oval laterally supporting plate 2, perpendicular shrouding 5, gusset 4, the connecting plate 3 becomes housing structure, reduces steel plate thickness, increases intensity, rigidity and the stability of structure self.Leave certain clearance between gusset 4 and the Spherical Tank Shell Plates, effect one, being beneficial to gas communication and condensed water derives, effect two, when the spherical shell thermal expansion with bear internal pressure when deforming, V-strut 1, oval laterally supporting plate 2 are out of shape with near the Spherical Tank Shell Plates attachment weld edge thereupon, are not subjected to the constraint of gusset 4, the Spherical Tank Shell Plates distortion is not subjected to V-strut 1 and the oval laterally constraint of supporting plate 2 yet, has realized the flexible support of pillar.
Fig. 5-A, 5-B, 5-C are respectively the projection drawing of spherical tank basic model, U-shaped column type and beater t shore and Spherical Tank Shell Plates cladding weld seam, and are 1500m
3Spherical tank, strut diameter is that the cladding area ratio of>600, three kinds of form pillars is: 1.00: 1.40: 2.69.As seen, beater type structure of the present invention has strengthened the bearing length to spherical shell warp and parallel, has increased the Area of bearing to spherical shell, has increased the Security of spherical shell, also provides possibility for reducing pillar quantity.