Anti-motion Structure of Column Floater

Abstract

An anti-motion structure of a column floater, being an annular structure surrounding the outer periphery of the bottom of a buoy of the column floater, and an annular radial gap between the two is, or optionally is not, set up. The anti-motion structure is connected to a horizontal roof plate, a horizontal floor plate, an outer annular vertical plate, and an inner annular vertical plate to form an annular box body; and the box body is divided into a plurality of watertight compartments; the horizontal roof plate and/or the horizontal floor plate corresponding to each watertight compartment are provided with damping holes capable of being opened or closed.

1 . An anti-motion structure of a column floater comprising:
 an annular structure surrounding the bottom and outer periphery of the buoy of the column float, said annular structure comprises a roof plate, a floor plate with spacing below the roof plate, an outer annular vertical plate and an inner annular vertical plate spaced between the outer annular vertical plate and the buoy, and said roof plates, floor plate, outer annular vertical plate and inner annular vertical plate to be watertight connected with each other to form an annular box with rectangular or trapezoidal radial vertical cross section, and to form a total of four circles of corner lines along the box corners, i.e., a roof outer corner line of the box, a floor outer corner line of the box, a roof inner corner line of the box and a floor inner corner line of the box, wherein the centroid of each corner line of plane geometry is located in the vertical central axis of the buoy and the said annular box body is rotationally symmetric with the centroid, or symmetric anteroposterior and left-right with the vertical central axis of the buoy, and an annular radial gap is set or optionally not set between the anti-motion structure and the buoy;   wherein the anti-motion structure is connected with the buoy by multiple radial vertical brackets, and the box body is divided into several watertight compartments by a plurality of radial vertical partitions, the horizontal roof plate and/or the horizontal floor plate corresponding to each watertight compartment are provided with damping holes capable of being opened or closed; by opening of the damping holes in the horizontal roof plate and the horizontal floor plate, the compartments are filled with water introduced with sea, or by closing of the damping holes in the horizontal roof plate and the horizontal floor plate, a closed floating compartment is formed, or by closing of the damping holes in the horizontal roof plate and opening of the damping holes in the horizontal floor plate, a closed air floating compartment is formed, so as to meet requirements under different working conditions of the column floater;   wherein at least one of plates of the roof plate and/or the floor plate of the anti-motion structure without the annular radial gap shall be provided with an outer edge extending lath, i.e., roof outer edge extending lath and floor outer edge extending lath; and at least one of plates of the roof plate and the floor plate of the anti-motion structure with the annular radial gap shall be provided with an outer edge extending lath and an inner edge extending lath separately or simultaneously, said outer edge extending lath is the outer edge extending lath and the floor outer edge extending lath, and said inner edge extending lath is roof inner edge extending lath and floor inner edge extending lath;   wherein the outer edge extending lath is a plate structure, which extends outward and/or upward and downward from the roof outer corner line and the floor outer corner line respectively; the roof outer edge extending lath is formed on the roof plate and the floor outer edge extending lath is formed on the floor plate; the inner edge extending lath is a plate structure, which extends horizontally from the roof inner corner line and/or the floor inner corner line of the box to the direction of the buoy; the horizontal roof inner edge extending lath is formed on the roof plate, and the horizontal floor inner edge extending lath is formed on the floor plate; the inner edge extending lath shall not close the annular radial gap.   
     
     
         2 . The anti-motion structure of column floater according to  claim 1  comprising: the anti-motion structure is a circular or regular polygon structure, and the four box corner lines correspond to a circular or regular polygon;
 or the shapes of the inner annular vertical plate and the outer annular vertical plate of the anti-motion are different, the inner annular vertical plate is circular or regular polygon and the roof inner corner line and the floor inner corner line of the box are circular or regular polygon accordingly, and the outer annular vertical plate is oval and the roof outer corner line and the floor outer corner line of the box are oval accordingly, or the outer annular vertical plate is hetero-polygon, the roof outer corner line and the floor outer corner line of the box are closed geometric figures with parallel straight lines on the left and right sides and circular or broken lines on the front and rear sides, its dimensions in the left and right directions are smaller than those in the front and rear directions. 
 
     
     
         3 . The anti-motion structure of column floater according to  claim 2  comprising: the roof outer edge extending lath and the floor outer edge extending lath are of horizontal annular structures, the edge of the roof outer edge extending lath and the edge of the floor outer edge extending lath forms a roof outer end edge line and a floor outer end edge line respectively; and the plane geometric figures of the roof outer edge line or the floor outer edge line has the same centroid as the roof outer box corner line and the floor outer box corner line and is rotationally symmetric to the centroid, or symmetric to the vertical central axis of the upright floater front-back and left-right;
 or, the roof outer edge extending lath or the floor outer edge extending lath is a protruding wall structure upward or downward respectively, and the upper edge and the lower edge of each protruding edge extending lath wall structure form a circle of closed upper end edge line and a circle of closed lower end edge line respectively, which centroid is located in the vertical central axis of buoy and the geometry of said each end edge line is equal to or similar to the geometry of the roof and floor corner lines of the box respectively; 
 or the roof outer edge extending lath or the floor outer edge extending lath is an horizontal annular plate then folding and protruding upward or downward to form a wall respectively, and the end edge of the wall of the roof outer edge extending lath or of the floor outer edge extending lath forms a circle of closed roof end edge line or a circle of closed floor end edge line respectively, which centroid of the plane geometry is located on the vertical central axis of the buoy, and the plane geometry of the circle of closed roof end edge line or the circle of closed floor end edge line is similar to the plane geometry of the roof outer corner line of the box or similar to the plane geometry of the floor outer corner line of the box respectively. 
 
     
     
         4 . The anti-motion structure of column floater according to  claim 3  comprising: the roof outer edge extending lath or the floor outer edge extending lath is a horizontal annular plate structure, which is the horizontal and outward extension structure of the roof plate or the floor plate;
 or the roof outer edge extending lath is an inverted frustum-shaped wall structure with its upper dimension larger than its lower dimension, which lower end edge line coincides with the roof outer corner line of the box; and the floor outer edge extending lath is a positive frustum-shaped wall structure with its upper dimension less than its lower dimension, which upper end edge line coincides with the floor outer corner line of the box; or the roof outer edge extending lath or the floor outer edge extending lath is a horizontal and outward extension structure of the roof plate or of the floor plate with limited extending distance, and then connected to an inverted frustum-shaped wall structure with its upper dimension larger than its lower dimension or to a positive frustum-shaped wall structure with its upper dimension less than its lower dimension respectively; at same time the dimension of the circle of closed lower end edge line graph of the inverted frustum-shaped wall structure is larger than that of the roof outer corner line graph of the box, and said two graphs are similar figures with a common centroid, and the dimension of the circle of closed upper end edge line graph of the positive frustum-shaped wall structure is larger than that of the floor outer corner graph of the box, and said two graphs are similar figures with a common centroid; 
 or the roof outer edge extending lath or the floor outer edge extending lath is a vertical cylindrical wall structure by folding the horizontal roof plate upward or the horizontal floor plate downward with a 90-degree angle on the roof or floor outer corner line of the box respectively; the lower edge line of the vertical cylindrical wall structure of the roof outer edge extending lath coincides with the roof outer corner line of the box, and the upper edge line of the vertical cylindrical wall structure of the floor outer edge extending lath coincides with the floor outer corner line of the box; or the roof outer edge extending lath or the floor outer edge extending lath is a horizontal and outward extension structures of the roof plate or of the floor plate with some extending distance, and then connected to a vertical cylindrical wall structure by folding the extension structure upward or downward with a 90-degree angle respectively; the dimension of the lower edge line of the vertical cylindrical wall structure of the roof outer edge extending lath is larger than the roof outer corner line of the box, and the dimension of the upper edge line of the vertical cylindrical wall structure of floor outer edge extending lath is larger than the floor outer corner line of the box, and said two graphs are similar figures with a common centroid. 
 
     
     
         5 . The anti-motion structure of column floater according to  claim 1  comprising: some damping holes are set up or optionally not set up on the roof outer edge extending lath and/or floor outer edge extending lath. 
     
     
         6 . The anti-motion structure of column floater according to  claim 5  comprising: for the anti-motion structure with annular radial gap, a horizontal annular plate is arranged on at least one part of the annular part on the outer wall of the buoy which is the same elevation as the roof plate and/or the floor plate, thus a buoy upper lath and/or a buoy lower lath are formed with a gap between the buoy upper lath and the roof inner edge extending lath and/or between the buoy lower lath and the floor inner edge extending lath. 
     
     
         7 . The anti-motion structure of column floater according to  claim 5  comprising: at least one of the roof plate and the floor plate of the anti-motion structure with the annular radial gap shall extend horizontally in the direction of the buoy from the roof inner corner line of the box and the floor inner corner line of the box up to connecting the buoy respectively to close the annular radial gap, and a plurality of damping holes are set up on the closing area the gap. 
     
     
         8 . The anti-motion structure of column floater according to  claim 1  comprising: a U-shaped fairlead groove is set up horizontally and up and down through the roof plate and the floor plate at the position on the inner side of anti-motion structure) adjacent to the buoy and corresponding to the space for installing fairlead, which shall be capable of accommodating and facilitating the maintenance of the fairlead mounted on the lower part of the outer wall of the buoy; the structure of said each U-shaped groove is as follows: the inner annular vertical plate corresponding to the U-shaped groove covering area is shifted outwards, and vertical baffles are installed on both sides of the U-shaped groove; the plate surface of the roof plate and the floor plate covered by the U-shaped groove are excised except that the U-shaped edge is retained to form a U-shaped plate edge extending lath; said shifted inner annular vertical plate, said vertical baffles on both sides of the groove and said roof plate and floor plate been taken some areas out are watertight connected to each other, and the water tightness of the watertight compartments of the anti-motion structure shall not be destroyed after the U-shaped fairlead groove been formed. 
     
     
         9 . The anti-motion structure of column floater according to  claim 3  comprising: when both roof outer edge extending lath and floor outer edge extending lath are horizontal annular plates, one of the roof outer end edge line and/or the floor outer end edge line is at least one continuous serrated line to form a serrated end edge, and/or one of the roof inner end edge line and/or the floor inner end edge line is at least a continuous serrated line to form a serrated end edge; when both roof outer edge extending lath and floor outer edge extending lath with a convex structure extending up and down to form a closed circle roof upper end edge line and a closed floor circle lower end edge line, at least one of the roof upper end edge line and/or the floor lower end edge line is a continuous serrated line to form a serrated end edge; said serrated end edge with tooth convex and tooth concave, which have the same or different geometric figures. 
     
     
         10 . The anti-motion structure of column floater according to  claim 9  comprising: said serrated edge on each tooth is triangular tooth, rectangular or trapezoidal tooth, and the shape of the convex and concave teeth of triangular teeth is triangular, the convex and concave shapes of the rectangular teeth are rectangular, the convex and concave shapes of the trapezoidal teeth are trapezoidal, and the convex and concave shapes of the compound shaped teeth are respectively a combination of triangle, rectangle or trapezoidal. 
     
     
         11 . The anti-motion structure of column floater according to  claim 3  comprising: the roof outer edge extending lath or the floor outer edge extending lath is a horizontal annular plate extending from the roof plate or the floor plate respectively, and at the same time, plus a vertical cylindrical wall structure connected upward to the roof outer corner line of the box or downward to the floor outer line of the box with a 90-degree angle from the horizontal extension plate; the roof outer edge extending lath or the floor outer edge extending lath simultaneously form a circle of roof outer end edge line plus a circle of roof upper end edge line, or a circle of floor outer end edge line plus a circle of floor lower end edge line respectively. 
     
     
         12 . The anti-motion structure of column floater according to  claim 4  comprising: for the roof outer edge extending lath and floor outer edge extending lath of anti-motion structure being horizontal annular plates, when the roof outer edge line and the floor outer edge line adopt serrated lines, or when the roof outer edge extending lath and the floor outer edge extending lath are provided with damping holes, a middle outer edge lath is arranged on the outer annular vertical plate equidistant from the roof outer box corner line and the floor outer box corner line, the middle outer edge lath is a horizontal annular plate structure, and its outer end edge is a straight and/or smooth curved edge. 
     
     
         13 . The anti-motion structure of column floater according to  claim 6  comprising: the upper gap between the roof inner edge extending lath and the buoy upper lath and the lower gap between the floor inner edge extending lath and the buoy lower lath should be dislocated as far as possible; or further, adding a layer of horizontal interspace annular plate at the midpoint between the roof inner edge extending lath and the floor inner edge extending lath, which is mounted on the inner annular vertical plate and maintains a middle gap with the outer wall of the buoy, or mounted on the outer wall of the buoy and maintains a middle gap with the inner annular vertical plate, thus the upper gap, the lower gap and the middle gap are dislocated with each other.