Ventilation system and pressure intensifying apparatus

Abstract

A ventilation system and a pressure intensifying apparatus can smoothly supply air to an indoor room by increasing required air volume and external static pressure. The ventilation system includes: a duct branched into at least rooms; a ventilator connected to the duct, for selectively or simultaneously exhausting indoor air and supplying outdoor air; and a pressure intensifying apparatus including a case in which air supply unit/air exhaust unit connected to the duct are formed, and a fan for increasing static pressure of air supplied/exhausted through the duct.

1 . A ventilation system comprising: 
 a duct branched into at least rooms;    a ventilator connected to the duct, for selectively or simultaneously exhausting indoor air and supplying outdoor air; and    a pressure intensifying apparatus including:    a case in which air supply unit/air exhaust unit connected to the duct are formed; and    a fan for increasing static pressure of air supplied/exhausted through the duct.    
   
   
       2 . The ventilation system of  claim 1 , wherein the pressure intensifying apparatus includes: 
 at least two air supply units and at least two air exhaust units connected to the duct;    a fan disposed inside the case, for supply/exhaust air by rotation thereof; and    a drive motor disposed inside the case, for rotating the fan.    
   
   
       3 . The ventilation system of  claim 1 , wherein the pressure intensifying apparatus further includes a damper for opening/closing the air supply unit and the air exhaust unit.  
   
   
       4 . The ventilation system of  claim 1 , wherein the case is formed evenly, and the air supply unit and the air exhaust unit are arranged at a periphery of the case.  
   
   
       5 . The ventilation system of  claim 1 , wherein the case has top and bottom surfaces formed in a circular shape.  
   
   
       6 . The ventilation system of  claim 1 , wherein the case is installed in a ceiling.  
   
   
       7 . The ventilation system of  claim 1 , wherein the fan is a turbo fan that sucks air in an axial direction and exhausts air in a radial direction.  
   
   
       8 . The ventilation system of  claim 1 , wherein the air supply unit and the air exhaust unit are inclined with respect to a rotational radius of the fan.  
   
   
       9 . The ventilation system of  claim 8 , wherein the air supply unit further includes a damper for opening/closing to guide air sucked inside the case in an axial direction of the fan.  
   
   
       10 . The ventilation system of  claim 1 , wherein the pressure intensifying apparatus is arranged in a position where the duct is branched.  
   
   
       11 . The ventilation system of  claim 1 , wherein the duct includes an air supply duct and an air discharge duct.  
   
   
       12 . The ventilation system of  claim 11 , wherein the pressure intensifying apparatus is installed in each of the air supply duct and the air exhaust duct.  
   
   
       13 . The ventilation system of  claim 1 , further comprising a controller for controlling the ventilator and/or the pressure intensifying apparatus according to user's input information.  
   
   
       14 . A pressure intensifying apparatus comprising: 
 at least two branched ducts;    a case divided into an upper space and a lower space;    an air supply unit and an air exhaust unit for communicating the upper and lower spaces of the case with the duct;    a fan disposed inside the case, for sucking air through the air supply unit and exhausting air through the air exhaust unit, or for sucking air through the air exhaust unit and exhausting air through the air supply unit; and    a drive motor, disposed inside the case, for rotating the fan.    
   
   
       15 . The pressure intensifying apparatus of  claim 14 , wherein the case is formed evenly, and at least two air supply units and at least two air exhaust units are arranged at a periphery of the case.  
   
   
       16 . The pressure intensifying apparatus of  claim 14 , wherein the fan is configured to suck air in an axial direction and exhaust air in a radial direction.  
   
   
       17 . The pressure intensifying apparatus of  claim 14 , wherein the fan is a double suction fan having an air supply fan and an air exhaust fan arranged up and down, the air supply fan being configured to suck air toward in an inside of the case through the air supply unit and exhaust the sucked air to the air exhaust unit, the air exhaust fan being configured to suck air through the air exhaust unit and exhaust the sucked air to the air supply unit.  
   
   
       18 . The pressure intensifying apparatus of  claim 14 , wherein the air supply unit further includes: 
 an air supply damper for opening/closing to guide air sucked inside the case in an axial direction; and    an air exhaust damper for opening/closing to guide air exhausted from the fan toward the duct.    
   
   
       19 . The pressure intensifying apparatus of  claim 18 , wherein the air supply damper includes a first air supply damper for guiding air sucked in the air supply unit in an axial direction of the fan, and a second air supply damper for preventing air from being exhausted to the air supply unit when the first air supply damper, and 
 the air exhaust damper includes a first air exhaust damper for guiding air exhausted from the fan to the air exhaust unit, and a second air exhaust damper for preventing air from being sucked into the fan.    
   
   
       20 . The pressure intensifying apparatus of  claim 19 , wherein the air exhaust damper and the air supply damper alternately open the air supply unit and the air exhaust unit.  
   
   
       21 . The pressure intensifying apparatus of  claim 14 , wherein the case is separated into a space where the air supply fan is received and a space where the air exhaust fan is received.  
   
   
       22 . A method for controlling a ventilation system, comprising the steps of: 
 selecting a predetermined input information;    driving a ventilator;    driving a pressure intensifying apparatus so as to increase an inner pressure of a duct connected to the ventilator; and    increasing a static pressure of the duct by opening a damper, the damper being openable/closable according to the input information and provided at a position where the pressure intensifying apparatus and the duct are connected.    
   
   
       23 . A method for controlling a pressure intensifying apparatus, comprising the steps of: 
 selecting a predetermined input information;    rotating a fan of a pressure intensifying apparatus, the fan being provided to increase an inner pressure of a duct; and    increasing a static pressure of the duct by opening a damper, the damper being openable/closable according to the input information and provided at a position where the pressure intensifying apparatus and the duct are connected.