Air condenser

Abstract

An air condenser with upward oriented tube bundles for condensing steam, wherein the tube bundles form sidewalls of a cell in form of a circumferentially closed, vertically extending polygon, wherein a fan is arranged above the polygon. Two of the circumferential sidewalls of the cell are formed by tube bundles, wherein these sidewalls enclose an angle smaller than 90° and wherein the at least one further side wall is impermeable to air.

1 .- 11 . (canceled) 
     
     
         12 . An air condenser comprising:
 a plurality of cells arranged to establish two horizontal rows in parallel side-by-side relationship, each said cell configured as a circumferentially closed, vertically extending polygon defined by sidewalls, wherein two of the sidewalls enclose an angle of less than 90° and are formed by upward oriented tube bundles for condensing steam and thereby define outer sides of the rows, and wherein further sidewalls are configured to be impermeable to air and face one another; and   a fan arranged above the polygon.   
     
     
         13 . The air condenser of  claim 12 , wherein each of the cells is mirror symmetrical but not rotationally symmetric with regard to a vertical plane of symmetry which intersects the cells. 
     
     
         14 . The air condenser of  claim 12 , wherein the two sidewalls formed by the tube bundles have a same length, and the further sidewalls have a same length, said cells being configured deltoid-shaped and defined by two pairs of said sidewalls, wherein one of the two pairs is formed by the two sidewalls formed by the tube bundles and the other one of the two pairs is formed by the further sidewalls. 
     
     
         15 . The air condenser of  claim 12 , wherein the tube bundles have confronting ends, with one of the further sidewalls being arranged between the ends and extending over a circumferential region which is smaller than one of the tube bundles. 
     
     
         16 . The air condenser of  claim 12 , wherein the angle defined between the two sidewalls formed by the tube bundles is smaller than an angle defined between the further sidewalls. 
     
     
         17 . The air condenser of  claim 12 , wherein each cell has a cross section in the shape of a trapeze, said tube bundles having legs extending at an angle of less than 90° to one another, said further sidewalls forming parallel base sides of the trapeze. 
     
     
         18 . The air condenser of  claim 12 , wherein the tube bundles have spaced-apart ends which are interconnected by the further sidewalls, said further sidewalls being arranged in a V or U-shaped configuration. 
     
     
         19 . The air condenser of  claim 12 , wherein the cells delimit a straight cylinder space when arranged stacked on top of one another, said fan being arranged above the cylinder space. 
     
     
         20 . The air condenser of  claim 12 , further comprising a steam manifold arranged between the parallel rows of cells. 
     
     
         21 . The air condenser of  claim 12 , further comprising a steam manifold which extends above the cells.