Ventilation system

Abstract

A ventilation system for cleaning contaminated heated air generated by cooking appliances in a food preparation area, such as a kitchen, includes an inlet for contaminated heated air located in the food preparation area, a treatment part for cleaning the contaminated heated air, and an outlet for the cleaned heated air. The cleaned heated air is used as a heat source to heat the building in which the food preparation area is located.

1 . A ventilation system for cleaning contaminated heated air generated by cooking appliances in a food preparation area such as a kitchen, comprising:
 an inlet for contaminated heated air located in the food preparation area;   a treatment part for cleaning contaminated heated air; and   an outlet for the heated air;   wherein the heated air is used as a heat source to heat the building in which the food preparation area is located.   
     
     
         2 . A ventilation system as claimed in  claim 1 , wherein the outlet for the heated air is located in a region of the building which it is desired to heat. 
     
     
         3 . A ventilation system as claimed in  claim 2 , wherein the outlet for the heated air is located in a dining area associated with the food preparation area, and the heated air is used to heat the dining area. 
     
     
         4 . A ventilation system as claimed in  claim 1 , wherein the treatment part is provided with means for cooling the air. 
     
     
         5 . A ventilation system as claimed in  claim 1 , with one or more fans in the treatment part for creating a current of air from the inlet to the outlet. 
     
     
         6 . A ventilation system as claimed in  claim 1 , wherein the treatment part cleans the contaminated air by filtering it. 
     
     
         7 . A ventilation system as claimed in  claim 6 , wherein a series of filters are used. 
     
     
         8 . A ventilation system as claimed in  claim 7 , wherein a monitoring system monitors the state of the filters. 
     
     
         9 . A ventilation system as claimed in  claim 8 , wherein the monitoring system includes transducers for measuring the pressure drop across the filters. 
     
     
         10 . A ventilation system as claimed in  claim 8  further comprising a fan, wherein the monitoring system can control the speed of the fan depending on the state of the filters. 
     
     
         11 . A ventilation system as claimed in  claim 8 , wherein the monitoring system can send wireless alerts depending on the state of the filters. 
     
     
         12 . A ventilation system as claimed in  claim 8 , wherein the monitoring system can be accessed remotely. 
     
     
         13 . A ventilation system as claimed in  claim 1 , wherein the treatment part also includes means for removing odours from the contaminated air. 
     
     
         14 . A ventilation system as claimed in  claim 13 , wherein said means include activated charcoal. 
     
     
         15 . A ventilation system as claimed in  claim 1 , wherein the treatment part is located in a room separate from the food preparation area. 
     
     
         16 . (canceled)