Ventilation system module, building comprising such and method for installing the same

Abstract

The present disclosure relates to a ventilation system module, VSM, arranged to be attached to an ambient facing surface of a building, the ambient surface being associated to at least one idle plane of a stairwell, the VSM being arranged to control air circulation of a plurality of spaces within said building, the VSM comprising a surface an air handling unit positioned at said surface, a distribution channel, an exhaust-air channel wherein said surface is arranged to be associated to said idle plane of said stairwell, wherein at an installed state of said VSM, the idle plane is accessible from a proximal portion of said surface.

1 . A ventilation system module, VSM, arranged to be attached to an ambient facing surface of a building, the ambient surface being associated to at least one idle plane of a stairwell, the VSM being arranged to control air circulation of a plurality of spaces within said building, the VSM comprising:
 a surface having a vertically extending structure extending therefrom in a first direction, wherein an upper portion of the structure comprises, at a sidewall thereof, a first opening for horizontally drawing ambient air into the VSM by an air-intake device of the VSM, and, at a top surface thereof opposing the surface, a second opening for venting exhaust air away from the VSM by an air-exhaust device of the VSM;   an air handling unit positioned on said surface;   a distribution channel having a first distribution portion, the first distribution portion extending between said air-intake device and said air handling unit, and a second distribution portion extending from said air handling unit towards said VSM upper portion, the second distribution portion comprising a first set of at least partially horizontally extending air-supply branches for supplying air to said plurality of spaces from said distribution channel, each air-supply branch being arranged to connect to corresponding air-supply pipes of said building, each air-supply branch-comprising a throttle-unit for individual adjustment of air-supply flow from respective branch; and   an exhaust-air channel having a first exhaust portion extending between said air handling unit and said air exhaust device and a second exhaust portion extending from said air handling unit towards said upper portion, the second exhaust portion comprising a first set of at least partially horizontally extending air-exhaust branches for exhaust of air from said plurality of spaces to said exhaust-air channel, each exhaust-air branch being arranged to connect to corresponding air-exhaust pipes of said building;   wherein said surface is arranged to be associated to said idle plane of said stairwell, wherein at an installed state of said VSM, the idle plane is accessible from a proximal portion of said surface.   
     
     
         2 . The VSM according to  claim 1 , wherein said first set of air-supply branches extend along a common row, said throttle-units of said first set of air-supply branches being arranged at a distance from said surface. 
     
     
         3 . The VSM according to  claim 1 , further comprising a fire-gas channel arrangement comprising an inlet channel arranged at said upper portion of said structure the fire-gas channel arrangement being configured to, upon activation, withdraw fire-gas from said stairwell of said building and exhaust said fire-gas through said air-exhaust device. 
     
     
         4 . The VSM according to  claim 1 , further comprising a fire-gas channel arrangement comprising a by-pass channel positioned intermediate said air-exhaust branches and said air handling unit, the by-pass channel being arranged to, upon activation of said fire-gas channel arrangement, by-pass the air handling unit, such that exhaust air collected by said branches are directly transferred to said first exhaust portion and out from said air-exhaust device. 
     
     
         5 . The VSM according to  claim 1 , wherein said VSM further comprises an entering structure extending from the surface in a direction opposite the first direction, the entering structure being arranged to enclose an entering section of said building, the entering structure comprising at least one partially transparent surface and an opening for fitting a door. 
     
     
         6 . The VSM according to  claim 5 , wherein the distribution channel further comprises a stairwell air-supply branch section extending through the surface arranged to supply air to said entering structure from said distribution channel, wherein the exhaust-air channel further comprises a stairwell air-exhaust branch section, which, when said VSM is installed to said building, extends to the stairwell from said upper portion of said VSM, allowing for recirculation of air within said stairwell. 
     
     
         7 . The VSM according to  claim 1 , further comprising a pair of beams, wherein when said VSM-is installed, first ends of said pair of beams are anchored at the ground and second ends thereof supports said surface, a distance between the first and the second ends being at least 2 m. 
     
     
         8 . The VSM according to  claim 1 , wherein said air handling unit comprises a heat exchanger, the air handling unit being arranged to circulate air from said air-intake device out from said air-supply pipes and from said air-exhaust pipes out from said air-exhaust device. 
     
     
         9 . The VSM according to  claim 1 , wherein said VSM comprises at least a second set of air-supply and air-exhaust branches extending from said distribution channel and said exhaust-air channel respectively, the at least one second set of branches having a greater distance in the first direction from said surface compared to said first set of branches, allowing for said distribution channel and said exhaust-air channel to circulate air within a plurality of spaces in a plurality of floors in said building. 
     
     
         10 . A building comprising a stairwell being intermediate a plurality of spaces, the stairwell having at least one idle plane associated to an ambient facing surface of said building, wherein the VSM according to  claim 1  is installed to said ambient facing surface of said stairwell, wherein the building comprises an opening-in said ambient facing surface, the opening being associated to one of said at least one idle planes and a distal portion of said surface. 
     
     
         11 . A method for installing the VSM according to  claim 1  to an ambient facing surface of a building, the ambient facing surface being associated to a stairwell, the method comprising:
 providing the VSM according to  claim 1 ; 
 anchoring said VSM to said ambient facing surface of said building such that the surface is associated to an idle plane of said stairwell; 
 opening a part of a said ambient facing surface for allowing the surface to be accessible from said idle plane; and 
 fluidically connecting said air-exhaust branches to air-exhaust pipes of said building and air-supply branches to air-supply pipes of said building.