Ventilation system

Abstract

A ventilation system for a building has blowers installed in a number of rooms for occupation, for blowing fresh outside air directly into said rooms. There is a central extractor and with the aid of a control device, the amount of air blown in is controlled for each of the rooms as required. Connection of the various components described above is via the mains network.

1 - 14 . (canceled)  
   
   
       15 . A ventilation system for a building comprising at least two air blowers, each provided with a motor, with adjustable flow rate, which only blow in air, each to be connected by an inlet to the outside air and to be installed in different rooms in said building, as well as a single air extractor, provided with a motor, which only blows out air and is to be installed in a further room in said building, and a control device for mutual control of said air blowers and air extractor, wherein said system is adapted to provide minimal ventilation and has measurement means for measuring the quantity of incoming and outgoing air, said measurement means being connected to said control device for controlling said air blowers and/or said air extractors.  
   
   
       16 . The ventilation system according to  claim 15 , wherein the control device is provided with means for converting the control signal into a signal to be transported by a mains supply and to provide the blowers with means for converting a signal received from the control device from the mains supply to a control signal for said blowers.  
   
   
       17 . The ventilation system according to  claim 15 , further including sensors which are to be installed in said building and are provided with means for converting the sensor signal into a signal to be transported by the mains supply and wherein said control device is provided with means for converting the signal received from the sensors from the mains supply into an input signal for said control device.  
   
   
       18 . The ventilation system according to  claim 17 , wherein said sensors are CO 2  sensors.  
   
   
       19 . The ventilation system according to  claim 17 , wherein said sensors are air speed sensors and are accommodated in said air blower/extractor.  
   
   
       20 . The ventilation system according to  claim 15 , wherein said control device is provided with input means for inputting building-specific data.  
   
   
       21 . The ventilation system according to  claim 15 , wherein said air blower comprises an air inlet part, a fan part and an air discharge part, wherein the air discharge part or air inlet part contains a heating element.  
   
   
       22 . The ventilation system according to  claim 21 , wherein said inlet part has a first part that is suitable for fitting through a wall of a building and has a second part that extends essentially vertically.  
   
   
       23 . The ventilation system according to  claim 15 , wherein said control device provides that essentially the same amount of air is extracted by said air extractor as is introduced by said air blowers.  
   
   
       24 . A building containing a ventilation system comprising at least two air blowers, each provided with a motor, with adjustable flow rate, which only blow in air, each to be connected by an inlet to the outside air and to be installed in different rooms in said building, as well as a single air extractor, provided with a motor, which only blows out air and is to be installed in a further room in said building, and a control device for mutual control of said air blowers and air extractor, wherein said system is adapted to provide minimal ventilation and has measurement means for measuring the quantity of incoming and outgoing air, said measurement means being connected to said control device for controlling said air blowers and/or said air extractors, wherein said blowers are installed in rooms for occupation.  
   
   
       25 . The building according to  claim 24 , wherein said extractor is connected to a wet cell.  
   
   
       26 . The building according to  claim 24 , wherein said air blower comprises an air inlet part, a fan part and an air discharge part, wherein the air discharge part or air inlet part contains a heating element, wherein the air inlet is installed immediately underneath a sill (threshold) in said building.  
   
   
       27 . A method for ventilating a building, wherein air is mechanically blown directly into a number of rooms from the outside and air is mechanically extracted to the outside from at least one room, wherein the speed of air blown in is determined per blowing-in point and the mechanical work for blowing in is increased or reduced depending on this determination.  
   
   
       28 . The method according to  claim 27 , wherein the CO 2  concentration is measured in said rooms wherein more outside air is blown in when said concentration in said room concerned becomes higher.