Packing sheet, packing module and cooling tower

Abstract

The present invention provides a packing sheet, a packing module and a cooling tower. The packing module has: stacked first flow path and second flow path which exchange heat between water sprayed from above and air flowing from below to above; a first import portion for importing water sprayed from one side of the packing module in a width direction into the first flow path; a second import portion for importing water sprayed from the other side of the packing module in the width direction into the second flow path; a first export portion for guiding water flowing out from the first water path to one side of the packing module in the width direction for discharging; and, a second export portion for guiding water flowing out from the second water path to the other side of the packing module in the width direction for discharging. In accordance with the present invention, two flow paths in the packing module can operate in different operation modes, so that water or wind can flow through one flow path to cool water while only air can flow through the other flow path to realize heat exchange through partition walls, thereby reducing fog discharge when wet air is discharged to the atmosphere.

1 . A packing module having:
 stacked first flow path and second flow path which exchange heat between water sprayed from above and air flowing from below to above;   a first import portion for importing water sprayed from one side of the packing module in a width direction into the first flow path;   a second import portion for importing water sprayed from the other side of the packing module in the width direction into the second flow path;   a first export portion for guiding water flowing out from the first water path to one side of the packing module in the width direction for discharging; and   a second export portion for guiding water flowing out from the second water path to the other side of the packing module in the width direction for discharging;   a first functional portion located between the first import portion and the first export portion; and   a second functional portion located between the second import portion and the second export portion;   the first functional portion and the second functional portion being formed on approximately full width of the packing sheet for heat exchange;   the first import portion is formed to guide water flowing from one side of the packing module in the width direction to the first functional portion by using a flow guide slot arranged obliquely, so as to form a water film on surface of wall of the first functional portion;   the second import portion is formed to guide water flowing from the other side of the packing module in the width direction to the second functional portion by using a flow guide slot arranged obliquely, so as to form a water film on surface of wall of the second functional portion.   
     
     
         2 . (canceled) 
     
     
         3 . The packing module according to  claim 1 , having:
 first primary packing sheets, which limit the formation of the firs flow path;   second primary packing sheets, which limit the formation of the second flow path and arranged alternately with the first primary packing sheets; and   partition sheets, which separate the first primary packing sheets from the second primary packing sheets.   
     
     
         4 . (canceled) 
     
     
         5 . The packing module according to  claim 3 , wherein:
 the first export portion is formed to guide, below the first primary packing sheets and by using a flow guide slot arranged obliquely, water flowing out from the first functional portion of the first flow path to one side of the packing module in the width direction for discharging; and   the second export portion is formed to guide, below the second primary packing sheets and by using a flow guide slot arranged obliquely, water flowing out from the second functional portion of the second flow path to the other side of the packing module in the width direction for discharging.   
     
     
         6 . (canceled) 
     
     
         7 . (canceled) 
     
     
         8 . The packing module according to  claim 3 , wherein:
 the first import portion is integrally formed with the first primary packing sheets to guide, above the first primary packing sheets and by using a flow guide slot arranged obliquely, water flowing from one side of the packing module in the width direction to the first functional portion of the first flow path;   the second import portion is integrally formed with the second primary packing sheets to guide, above the second primary packing sheets and by using a flow guide slot arranged obliquely, water flowing from the other side of the packing module in the width direction to the second functional portion of the second flow path;   the first export portion is integrally formed with the first primary packing sheets to guide, below the first primary packing sheets and by using a flow guide slot arranged obliquely, water flowing out from the first functional portion of the first flow path to one side of the packing module in the width direction for discharging; and   the second export portion is integrally formed with the second primary packing sheets to guide, below the second primary packing sheets and by using a flow guide slot arranged obliquely, water flowing out from the second functional portion of the second flow path to the other side of the packing module in the width direction for discharging.   
     
     
         9 . The packing module according to  claim 1 , wherein:
 the first and second import portions and/or the first and second export portions are formed in such a way that a substrate is bent for many times to form a concave-convex flow guide slot.   
     
     
         10 . The packing module according to  claim 1 , wherein:
 the first and second import portions and/or the first and second export portions are formed in such a way that a substrate is bent for many times to form a concave-convex flow guide slot, and have a corrugated cross-section in a direction perpendicular to an extension direction of the flow guide slot, and the corrugated slot bottom is formed as a flat strip in the extension direction.   
     
     
         11 . (canceled) 
     
     
         12 . The packing module according to  claim 3 , wherein:
 the first and second import portions and/or the first and second export portions are formed as a triangular shape having a vertex angle pointing to the outside of the packing module when viewed in a stack direction of the packing module.   
     
     
         13 . The packing module according to  claim 12 , wherein:
 the partition sheets comprise:   first partition sheets, which are located on one side of the first primary packing sheets and matched with the first primary packing sheets to form a first module group; and   second partition sheets, which are located on one side of the second primary packing sheets and matched with the second primary packing sheets to form a second module group; and   the first module group and the second module group are stacked to form the packing module.   
     
     
         14 . The packing module according to  claim 13 , wherein:
 on the edges, where no inflow/outflow port is formed, of the first primary packing sheets and the first partition sheets, first folding groups that can be folded toward each other in opposite directions and can be buckled with each other are formed;   on the edges, where no inflow/outflow port is formed, of the second primary packing sheets and the second partition sheets, second folding groups that can be folded toward each other in opposite directions and can be buckled with each other are formed; and   when the first and second module groups are stacked, the first folding groups and the second folding groups at two ends of the packing module in the width direction are stacked with each other.   
     
     
         15 . (canceled) 
     
     
         16 . (canceled) 
     
     
         17 . (canceled) 
     
     
         18 . The packing module according to  claim 3 , wherein:
 the partition sheets comprise first partition sheets and second partition sheets; the first partition sheets are located on one side of the first primary packing sheets and matched with the first primary packing sheets to form a first module group; the second partition sheets are located on one side of the second primary packing sheets and matched with the second primary packing sheets to form a second module group; and the first module group and the second module group are stacked to the packing module;   in the upper portion of the packing module: when viewed in the stack direction of the packing sheets, the packing module forms, in a vertical direction, upper flow guide portions with an upper triangle having a vertex angle pointing to the upper side of the packing module, and upper longitudinal flow guide portions communicating a bevel edge of the upper triangle on an inflow side;   in the lower portion of the packing module: when viewed in the stack direction of the packing sheets, the packing module forms, in a vertical direction, lower flow guide portions with a lower triangle having a vertex angle pointing to the lower side of the packing module, and lower longitudinal flow guide portions communicating a bevel edge of the upper triangle on an outflow side;   the first primary packing sheets guide, at the upper flow guide portions, water from a bevel edge on one side as the bevel edge on the inflow side to the middle part of the approximately full width of the first primary packing sheets, and guide, at the lower flow guide portions, the water from the middle part of the approximately full width of the first primary packing sheets to a bevel edge on the other side as the bevel edge on the outflow side or the bevel edge on the one side;   for the first primary packing sheets, the upper longitudinal flow guide portions are arranged at positions corresponding to the bevel edge on the one side, and the lower longitudinal flow guide portions are arranged at position corresponding to the bevel edge on the other side or the bevel edge on the one side;   the second primary packing sheets guide, at the upper flow guide portions, water from a bevel edge on the other side as the bevel edge on the inflow side to the middle part of the approximately full width of the second primary packing sheets, and guide, at the lower flow guide portions, the water from the middle part of the approximately full width of the second primary packing sheets to a bevel edge on one side as the bevel edge on the outflow side or the bevel edge on the other side; and   for the second primary packing sheets, the upper longitudinal flow guide portions are arranged at positions corresponding to the bevel edge on the other side, and the lower longitudinal flow guide portions are arranged at positions corresponding to the bevel edge on the one side or the bevel edge on the other side.   
     
     
         19 . The packing module according to  claim 18 , wherein:
 the height of the upper longitudinal flow guide portions of the first and second primary packing sheets is less than that of the vertex of the upper triangle, and the vertex angle of the upper triangle is protruded upward; and   the height of the vertex of the lower triangle is less than that of the lower longitudinal flow guide portions of the first and second primary packing sheets, and the vertex angle of the lower triangle is protruded downward.   
     
     
         20 . The packing module according to  claim 18 , wherein:
 the upper ends of the first and second primary packing sheets on a non-inflow side are at the same height as the upper ends of the upper longitudinal flow guide portions; and   the lower ends of the first and second primary packing sheets on a non-outflow side are at the same height as the lower ends of the upper longitudinal flow guide portions.   
     
     
         21 . (canceled) 
     
     
         22 . (canceled) 
     
     
         23 . (canceled) 
     
     
         24 . The packing module according to  claim 1 , wherein:
 flared portions are formed at lower openings of the flow guide slots obliquely arranged in the first and second import portions, and the flared portions are gradually widened from the top down.   
     
     
         25 . The packing module according to  claim 24 , wherein:
 in the first import portion, protrusion portions protruded outward in a normal direction of a plane where the first primary packing sheets are located are formed between two adjacent flow guide slots;   in the second import portion, protrusion portions protruded outward in a normal direction of a plane where the second primary packing sheets are located are formed between two adjacent flow guide slots; and   the flared portions are connected to at least one protrusion portion adjacent thereto through smooth transition surfaces.   
     
     
         26 . (canceled) 
     
     
         27 . The packing module according to  claim 25 , wherein:
 the lower ends of the protrusion portions gradually decrease in protrusion height and gradually decrease in width from the top down.   
     
     
         28 . The packing module according to  claim 25 , wherein:
 the flared portions are connected to the protrusion portions on the lower side thereof through first transition surfaces, and the first transition surfaces are convex smooth transition surfaces; and   the flared portions are connected to the protrusion portions on the upper side thereof through second transition surfaces, and the second transition surfaces are concave smooth transition surfaces.   
     
     
         29 . The packing module according to  claim 24 , wherein:
 diffusion portions for uniformly distributing water to the middle part of the approximately full width of the first primary packing sheets are formed on the first primary packing sheets between the first import portion and the middle part of the approximately full width of the first primary packing sheets; and   diffusion portions for uniformly distributing water to the middle part of the approximately full width of the second primary packing sheets are formed on the second primary packing sheets between the first import portion and the middle part of the approximately full width of the second primary packing sheets.   
     
     
         30 . The packing module according to  claim 29 , wherein:
 the diffusion portions are formed as diffusion protrusions in multiple inverted herringbone shapes.   
     
     
         31 . (canceled) 
     
     
         32 . The packing module according to  claim 3 , wherein:
 the partition sheets comprise:   first partition sheets, which are located on one side of the first primary packing sheets and matched with the first primary packing sheets to form a first module group; and   second partition sheets, which are located on one side of the second primary packing sheets and matched with the second primary packing sheets to form a second module group;   the first module group and the second module group are stacked to form the packing module; and   a convex bent portion is formed on one side of the first module group in the stack direction, and a concave bent portion is formed on the other side thereof; a convex bent portion is formed on one side of the second module group in the stack direction, and a concave bent portion is formed on the other side thereof; the convex bent portion of the first module group can be connected to the concave bent portion of the second module group; and the concave bent portion of the first module group can be connected to the convex bent portion of the second module group.   
     
     
         33 . (canceled) 
     
     
         34 . (canceled) 
     
     
         35 . A cooling tower having:
 the packing modules according to  claim 1 , the plurality of packing modules being arranged in a horizontal direction to form a heat exchange portion of the cooling tower, partition plates being arranged between first import portions and second import portions of the packing modules to partition a plurality of spray spaces; and   nozzles, which are arranged in the spray spaces, respectively.   
     
     
         36 . (canceled) 
     
     
         37 . (canceled) 
     
     
         38 . (canceled) 
     
     
         39 . (canceled) 
     
     
         40 . (canceled)