Space truss support device in large-scale tower

Abstract

The invention discloses a space truss support device in a large-scale tower, the large-scale tower is provided with a foundation beam therein, pillars are distributed on the surface of the foundation beam at intervals, both layering and horizontal support of X-direction cross beams and Y-direction cross beams are realized between the pillars and between the pillars on the periphery and a tower body, and the X-direction cross beams and the Y-direction cross beams of all layers horizontally support functional members inside the tower respectively. The device consisting of the foundation beam, the pillars, the X-direction cross beams and the Y-direction cross beams has the characteristics of large intensity, good rigidness and small flexibility, in particular, the multi-pillar structure of the device achieves the division of the existing large-span long cross beam into small-span short cross beams, thus high levelness of tower tray can be guaranteed. With strong resistance to the impact of high-speed variable gas load, the device can effectively avoid the vibration accident caused by the impact, and in particular, a baffle in the structure is a segmental short baffle so as to avoid resonant vibration owing to the impact and guarantee long-term stable operation of the tower. The invention has the prominent advantages of reducing the manufacturing and installation difficulty as well as the investment of tower support device.

1 . A space truss support device in a large-scale tower, characterized in that: the pillars are distributed or the upper surface of the foundation beam at intervals, both layering and horizontal support of X-direction cross beams and V-direction cross beams arc realized between the pillars and between the pillars on the periphery and a tower body, and the X-direction cross beams and the Y-direction cross beams of all layers horizontally support functional members inside the tower respectively. 
     
     
         2 . The space truss support device according to  claim 1 , characterized in that: the foundation beam is supported on a pedestal. 
     
     
         3 . The space truss support device according to  claim 1 , characterized in that the foundation beam is a fence beam, and the fence beam is formed by parallel and uniformly-spaced rectangular vertical plates and vertical ribbed slabs which are distributed between the vertical plates in a staggered manner and fixedly connected with the vertical plates. 
     
     
         4 . The spare truss support device according to  claim 1 , characterized in that: the foundation beam is an arc bridge beam, the arc bridge beam is formed by flat chord upper rods, arc chord lower rods, and oblique rods and vertical rods which arc connected with the flat chord upper rods and the arc chord lower rods in a vertical direction and arc arranged at intervals, and spacing rods, which are connected with the flat chord upper rods and the arc chord lower rods respectively, are arranged between the adjacent arc bridge beams. 
     
     
         5 . The space truss support device according to  claim 1 , characterized in that: the foundation beam is a grill beam, the grill beam is composed of square grids formed by vertical plates interconnected vertically, and support plates are arranged on the surfaces of the pillar-supporting square grids. 
     
     
         6 . The space truss support device according to  claim 1 , characterized in that: the foundation beam is a lower head of the tower body. 
     
     
         7 . The space truss support device according to  claim 1 , characterized in that: the functional members supported by the X-direction cross beams and Y-direction cross beams horizontally are multi-overflow trays, multi-downcomer trays, dual-flow trays or baffles. 
     
     
         8 . The space truss support device according to  claim 1 , characterized in that: the pillars are section steels, support bases supporting the X-direction cross beams and Y-direction cross beams are welded in a layered maller on the pillars, the pillars at the same row are positioned, at intervals, on a central line of downcomers and seal pans on the same perpendicular line of the multi-overflow trays or the multi-downcomer trays. 
     
     
         9 . The space truss support device according to  claim 1 , characterized in that: the X-direction cross beams and Y-direction cross beams are section steels, and the Y-direction cross beams are positioned below tower tray exit weirs and below the central line of the seal pans.