Air treatment system

Abstract

An air treatment system controls airflow volume in accordance with momentarily varying airflow volume to be demanded. A supply fan unit is disposed separately from an air treatment unit, and sends outdoor air from an outdoor space to the air treatment unit and sends outdoor air treated by the air treatment unit to an indoor space. An exhaust fan unit is disposed separately from the air treatment unit, and sends indoor air from the indoor space to the air treatment unit and sends indoor air treated by the air treatment unit to the outdoor space. A controller controls a rotation speed of a first fan in accordance with a first detection value of a first airflow volume detection unit, and controls a rotation speed of a second fan in accordance with a second detection value of a second airflow volume detection unit.

1 .- 6 . (canceled) 
     
     
         7 . An air treatment system comprising:
 an air treatment unit configured to apply predetermined treatment to air passing through the unit;   a first supply fan unit and a second supply fan unit disposed separately from the air treatment unit and configured to send outdoor air from an outdoor space to the air treatment unit and send the outdoor air treated by the air treatment unit to an indoor space;   a first supply air duct and a second supply air duct connected to the air treatment unit and provided to guide the outdoor air treated by the air treatment unit and supplied to the indoor space;   an exhaust fan unit disposed separately from the air treatment unit and configured to send indoor air from the indoor space to the air treatment unit and send the indoor air treated by the air treatment unit to the outdoor space; and   a controller configured to control the first supply fan unit, the second supply fan unit, and the exhaust fan unit, wherein   the first supply fan unit is connected to the first supply air duct, and the second supply fan unit is connected to the second supply air duct,   the first supply fan unit and the second supply fan unit each include a first fan having a variable rotation speed, and a first airflow volume detection unit configured to detect airflow volume of the first fan or airflow volume corresponding quantity as physical quantity corresponding to the airflow volume, and output a first detection value,   the exhaust fan unit includes a second fan having a variable rotation speed, and a second airflow volume detection unit configured to detect airflow volume of the second fan or airflow volume corresponding quantity as physical quantity corresponding to the airflow volume, and output a second detection value, and   the controller controls the rotation speed of the first fan in accordance with the first detection value in each of the first supply fan unit and the second supply fan unit, and controls the rotation speed of the second fan in accordance with the second detection value in the exhaust fan unit.   
     
     
         8 . The air treatment system according to  claim 7 , wherein
 the controller includes a first controller provided at each of the first supply fan unit and the second supply fan unit, and a second controller provided at the exhaust fan unit,   the first controller in the first supply fan unit receives a first command value on the airflow volume of the first fan in the first supply fan unit from outside the first supply fan unit, and controls the rotation speed of the first fan in the first supply fan unit in accordance with the first command value and the first detection value,   the first controller in the second supply fan unit receives a first command value on the airflow volume of the first fan in the second supply fan unit from outside the second supply fan unit, and controls the rotation speed of the first fan in the second supply fan unit in accordance with the first command value and the first detection value, and   the second controller receives a second command value on the airflow volume of the second fan from outside the exhaust fan unit, and controls the rotation speed of the second fan in accordance with the second command value and the second detection value.   
     
     
         9 . The air treatment system according to  claim 8 , wherein
 the controller includes a main controller configured to transmit the first command value of the first supply fan unit to the first controller in the first supply fan unit, transmit the first command value of the second supply fan unit to the first controller in the second supply fan unit, and transmit the second command value to the second controller.   
     
     
         10 . The air treatment system according to  claim 7 , further comprising:
 a return air duct connected to the air treatment unit and provided to guide the indoor air taken in to the air treatment unit from the indoor space; and   an exhaust air duct connected to the air treatment unit and provided to guide the indoor air treated by the air treatment unit and exhausted to the outdoor space, wherein   the exhaust fan unit is provided to at least one of the return air duct and the exhaust air duct, and causes the indoor air to flow from the return air duct to the exhaust air duct through the air treatment unit.   
     
     
         11 . The air treatment system according to  claim 7 , wherein
 the indoor space includes a plurality of rooms, the first supply fan unit is arranged in a first room of the plurality of rooms and the second supply fan unit is arranged in a second room of the plurality of rooms that is different from the first room.   
     
     
         12 . The air treatment system according to  claim 7 , wherein
 each of the first supply fan unit, the second supply fan unit and the exhaust fan unit includes a casing that is separate from the casings of the other fan units in the first supply fan unit, the second supply fan unit and the exhaust fan unit, wherein   the first supply fan unit, the second supply fan unit and the exhaust fan unit are detached from each other to enable the first supply fan unit, the second supply fan unit and the exhaust fan unit to be located in different locations in the building from each other, and   the rotation speeds of the first fans of the first and second supply fan units and the second fan of the exhaust fan unit are controlled independently from each other.   
     
     
         13 . The air treatment system according to  claim 7 , further comprising:
 a supply air passage connected to the air treatment unit for delivering outdoor air from an outdoor space into an indoor space; and   an exhaust air passage for expelling indoor air from the indoor space to the outdoor space, wherein   the supply air passage and the exhaust air passage are independent from each other,   the first supply fan unit and the second supply fan unit only deliver the outdoor air processed by the air treatment unit to the indoor space.   
     
     
         14 . The air treatment system according to  claim 8 , further comprising:
 a return air duct connected to the air treatment unit and provided to guide the indoor air taken in to the air treatment unit from the indoor space; and   an exhaust air duct connected to the air treatment unit and provided to guide the indoor air treated by the air treatment unit and exhausted to the outdoor space, wherein   the exhaust fan unit is provided to at least one of the return air duct and the exhaust air duct, and causes the indoor air to flow from the return air duct to the exhaust air duct through the air treatment unit.   
     
     
         15 . The air treatment system according to  claim 9 , further comprising:
 a return air duct connected to the air treatment unit and provided to guide the indoor air taken in to the air treatment unit from the indoor space; and   an exhaust air duct connected to the air treatment unit and provided to guide the indoor air treated by the air treatment unit and exhausted to the outdoor space, wherein   the exhaust fan unit is provided to at least one of the return air duct and the exhaust air duct, and causes the indoor air to flow from the return air duct to the exhaust air duct through the air treatment unit.   
     
     
         16 . The air treatment system according to  claim 8 , wherein
 the indoor space includes a plurality of rooms, the first supply fan unit is arranged in a first room of the plurality of rooms and the second supply fan unit is arranged in a second room of the plurality of rooms that is different from the first room.   
     
     
         17 . The air treatment system according to  claim 9 , wherein
 the indoor space includes a plurality of rooms, the first supply fan unit is arranged in a first room of the plurality of rooms and the second supply fan unit is arranged in a second room of the plurality of rooms that is different from the first room.   
     
     
         18 . The air treatment system according to  claim 10 , wherein
 the indoor space includes a plurality of rooms, the first supply fan unit is arranged in a first room of the plurality of rooms and the second supply fan unit is arranged in a second room of the plurality of rooms that is different from the first room.   
     
     
         19 . The air treatment system according to  claim 8 , wherein
 each of the first supply fan unit, the second supply fan unit and the exhaust fan unit includes a casing that is separate from the casings of the other fan units in the first supply fan unit, the second supply fan unit and the exhaust fan unit, wherein   the first supply fan unit, the second supply fan unit and the exhaust fan unit are detached from each other to enable the first supply fan unit, the second supply fan unit and the exhaust fan unit to be located in different locations in the building from each other, and   the rotation speeds of the first fans of the first and second supply fan units and the second fan of the exhaust fan unit are controlled independently from each other.   
     
     
         20 . The air treatment system according to  claim 9 , wherein
 each of the first supply fan unit, the second supply fan unit and the exhaust fan unit includes a casing that is separate from the casings of the other fan units in the first supply fan unit, the second supply fan unit and the exhaust fan unit, wherein   the first supply fan unit, the second supply fan unit and the exhaust fan unit are detached from each other to enable the first supply fan unit, the second supply fan unit and the exhaust fan unit to be located in different locations in the building from each other, and   the rotation speeds of the first fans of the first and second supply fan units and the second fan of the exhaust fan unit are controlled independently from each other.   
     
     
         21 . The air treatment system according to  claim 10 , wherein
 each of the first supply fan unit, the second supply fan unit and the exhaust fan unit includes a casing that is separate from the casings of the other fan units in the first supply fan unit, the second supply fan unit and the exhaust fan unit, wherein   the first supply fan unit, the second supply fan unit and the exhaust fan unit are detached from each other to enable the first supply fan unit, the second supply fan unit and the exhaust fan unit to be located in different locations in the building from each other, and   the rotation speeds of the first fans of the first and second supply fan units and the second fan of the exhaust fan unit are controlled independently from each other.   
     
     
         22 . The air treatment system according to  claim 8 , further comprising:
 a supply air passage connected to the air treatment unit for delivering outdoor air from an outdoor space into an indoor space; and   an exhaust air passage for expelling indoor air from the indoor space to the outdoor space, wherein   the supply air passage and the exhaust air passage are independent from each other,   the first supply fan unit and the second supply fan unit only deliver the outdoor air processed by the air treatment unit to the indoor space.   
     
     
         23 . The air treatment system according to  claim 9 , further comprising:
 a supply air passage connected to the air treatment unit for delivering outdoor air from an outdoor space into an indoor space; and   an exhaust air passage for expelling indoor air from the indoor space to the outdoor space, wherein   the supply air passage and the exhaust air passage are independent from each other,   the first supply fan unit and the second supply fan unit only deliver the outdoor air processed by the air treatment unit to the indoor space.   
     
     
         24 . The air treatment system according to  claim 10 , further comprising:
 a supply air passage connected to the air treatment unit for delivering outdoor air from an outdoor space into an indoor space; and   an exhaust air passage for expelling indoor air from the indoor space to the outdoor space, wherein   the supply air passage and the exhaust air passage are independent from each other,   the first supply fan unit and the second supply fan unit only deliver the outdoor air processed by the air treatment unit to the indoor space.