Supply and exhaust air terminal device

Abstract

A method and a supply and exhaust air terminal device arranged in a chilled beam system. The terminal comprises a supply air chamber into which supply air is led through at least one supply air opening from a supply air duct, wherein the supply air chamber is arranged in the first end of the chilled beam; and an exhaust air chamber through which exhaust air is led from a room space into an exhaust air duct through at least one exhaust air opening, wherein the exhaust air chamber is arranged in the second end of the chilled beam and separated from the supply air chamber. The air terminal device further comprises an adjusting device configured to adjust the at least one supply air opening and the at least one exhaust air opening; and an actuator for displacing the adjusting device, wherein displacing the adjusting device causes the air flow to be obstructed through the at least one supply air opening and through the at least one exhaust air opening.

1 . A supply and exhaust air terminal device configured to be arranged in a chilled beam system, comprising:
 a supply air chamber into which supply air is led through at least one supply air opening from a supply air duct, wherein the supply air chamber is configured to be arranged in a first end of a chilled beam; and   an exhaust air chamber through which exhaust air is configured to be led from a room space into an exhaust air duct through at least one exhaust air opening, wherein the exhaust air chamber is configured to be arranged in a second end of the chilled beam and separated from the supply air chamber;   an adjusting device configured to adjust the at least one supply air opening and the at least one exhaust air opening; and   an actuator for displacing the adjusting device,   wherein displacing the adjusting device causes the air flow to be obstructed through the at least one supply air opening and through the at least one exhaust air opening.   
     
     
         2 . The air terminal device according to  claim 1 , the adjusting device comprising:
 at least one opening configured to interact with the at least one supply air opening; and   at least one opening configured to interact with the at least one exhaust air opening,   wherein the form of the at least one opening is configured to cause the air flow through the supply air opening to correspond to the air flow though the exhaust air opening.   
     
     
         3 . The air terminal device according to  claim 1 , the adjusting device comprising a solid regulating plate. 
     
     
         4 . The air terminal device according to  claim 1 , the air terminal device comprising:
 a distribution chamber;   a nozzle chamber comprising nozzles or a nozzle gap;   at least one mixing chamber; and   at least one heat exchanger,   whereby the supply air flow is guided from the distribution chamber:
 to the nozzle chamber, from where the supply air flow is further guided via the nozzles or the nozzle gap to said at least one mixing chamber, where the supply air flow induces a circulated air flow to flow from the room being air-conditioned via said at least one heat exchanger to said at least one mixing chamber, from which the combined air flow composed of the supply air flow and circulated air flow is guided to the room being air-conditioned, and 
 to the supply air chamber, from which a separate supply air flow is 
   further guided directly to the room being air-conditioned,   wherein the nozzle chamber is divided into at least two partial nozzle chambers, and   wherein the adjusting device is arranged between the distribution chamber and the first nozzle chamber, the second nozzle chamber and the supply air chamber such that the adjusting device is arranged to open and close the air flow connection from the distribution chamber to the first partial nozzle chamber and/or the second partial nozzle chamber and/or the supply air chamber.   
     
     
         5 . The air terminal device according to  claim 4 , wherein the first partial nozzle chamber, the second partial nozzle chamber and the supply air chamber each comprise on that surface which is against the distribution chamber an inlet opening, and that the adjusting device consists of a regulating plate comprising openings, whereby the adjusting device is arranged to open and close the desired connection from the distribution chamber to the first partial nozzle chamber and/or the second partial nozzle chamber and/or the supply air chamber. 
     
     
         6 . A method for a supply and exhaust air terminal device configured to be arranged in a chilled beam system, the air terminal comprising:
 a supply air chamber into which supply air is led through at least one supply air opening from a supply air duct, wherein the supply air chamber is configured to be arranged in a first end of a chilled beam; and   an exhaust air chamber through which exhaust air is configured to be led from a room space into an exhaust air duct through at least one exhaust air opening, wherein the exhaust air chamber is configured to be arranged in a second end of the chilled beam and separated from the supply air chamber; and the method comprising:   adjusting the at least one supply air opening and the at least one exhaust air opening by an adjusting device; and   displacing the adjusting device by an actuator, causing obstruction of the air flow through the at least one supply air opening and through the at least one exhaust air opening.   
     
     
         7 . The method according to  claim 6 ,
 the adjusting device comprising at least one opening interacting with the at least one supply air opening; and   the adjusting device comprising at least one opening interacting with the at least one exhaust air opening;   wherein the form of the at least one opening causes the air flow through the supply air opening to correspond to the air flow though the exhaust air opening.   
     
     
         8 . The method according to  claim 6 , the adjusting device comprising a solid regulating plate. 
     
     
         9 . The method according to  claim 6 , the air terminal device comprising:
 a distribution chamber;   a nozzle chamber comprising nozzles or a nozzle gap;   at least one mixing chamber; and   at least one heat exchanger;   whereby the supply air flow is guided from the distribution chamber:
 to the nozzle chamber, from where the supply air flow is further guided via the nozzles or the nozzle gap to said at least one mixing chamber, where the supply air flow induces a circulated air flow to flow from the room being air-conditioned via said at least one heat exchanger to said at least one mixing chamber, from which the combined air flow composed of the supply air flow and circulated air flow is guided to the room being air-conditioned, and 
   to the supply air chamber, from which a separate supply air flow is further guided directly to the room being air-conditioned,   dividing the nozzle chamber into at least two partial nozzle chambers;   arranging the adjusting device between the distribution chamber, the first nozzle chamber and the second nozzle chamber and the supply air chamber; and   arranging the adjusting device to open and close the air flow connection from the distribution chamber to the first partial nozzle chamber and/or the second partial nozzle chamber and/or the supply air chamber.   
     
     
         10 . The method according to  claim 9 , wherein the first partial nozzle chamber, the second partial nozzle chamber and the supply air chamber each comprise on that surface which is against the distribution chamber an inlet opening, and that the adjusting device consists of a regulating plate comprising openings, whereby the adjusting device is arranged to open and close the desired connection from the distribution chamber to the first partial nozzle chamber and/or the second partial nozzle chamber and/or the supply air chamber.