Configuration and method for ventilating a room, more particularly a laboratory room

Abstract

A configuration ventilates a room with an access area and on either side work tables. The configuration has an air supply duct arranged above the access area for supplying fresh air, and an air exhaust air duct arranged above this for extracting exhaust air. The air supply duct has two side air supply slit outlets, and a central partition section. The exhaust air duct has two slit-like exhaust openings extending parallel to the air supply duct and are arranged in the ceiling so that on each side of the access area an air roll is formed through which supply air warmed up in the region of the work tables passes vertically into the region of the ceiling. The work tables have in an area of the back, a slit-like opening through which warm air can flow upward out from the area underneath the table top.

1 . A configuration for ventilating a room having an access area and defined on both sides by work tables, the configuration comprising:
 an air supply duct disposed above the access area for supplying fresh air into the room, said air supply duct having two side air supply sections or slit outlets formed therein, and a substantially air-tight central partition section;   an exhaust air duct disposed above said air supply duct for extracting exhaust air from the room, said exhaust air duct having two slit-shaped exhaust openings formed therein and extending substantially parallel to said air supply duct and disposed in a region of a ceiling of the room so that supply air heated in a region of the work tables passes vertically up into an area of the ceiling of the room; and   at least one of the work tables having in a area at a back a slit-shaped opening formed therein through which warmed supply air can flow upward out from an area underneath a table top of the at least one work table.   
     
     
         2 . The configuration according to  claim 1 , further comprising a vertical guide plate disposed in the area at the back of the at least one work table and extends vertically up at an edge of said slit-shaped opening, and which serves as a guide face at which the warmed air rises up. 
     
     
         3 . The configuration according to  claim 2 , wherein said vertical guide plate includes a first guide plate disposed underneath the table top, and/or a second guide plate extending upwards out from said slit-shaped opening ( 100 ) up toward the ceiling of the room. 
     
     
         4 . The configuration according to  claim 3 , wherein said second guide plate contains a material selected from the group consisting of a non-transparent material non-transparent to laser light, a fire-retardant material, a material having a high mechanical strength, and an explosion-resistant material. 
     
     
         5 . The configuration according to  claim 3 , wherein said second guide plate is made from a transparent material, glass or Plexiglas. 
     
     
         6 . The configuration according to  claim 1 , wherein the at least one work table has a frame which has two frame posts at the back between which said slit-shaped opening extends, and that said two frame posts can be lengthened in a vertical direction by adding on further posts wherein said further posts have socket grooves formed therein for receiving guide plates and/or horizontal shelf bases or energy ducts. 
     
     
         7 . The configuration according to  claim 3 , wherein said at least one work table has at least one longitudinal edge next to said slit-shaped opening having an arcuate rounded cross-sectional shape for assisting a flow movement of upwardly flowing air underneath the table top. 
     
     
         8 . The configuration according to  claim 7 , wherein said at least one longitudinal edge is an access-side longitudinal edge lying on a side of the access area, and said arcuate rounded cross-sectional shape has a trumpet-shaped or venturi-shaped cross-sectional form. 
     
     
         9 . A configuration for ventilating a room having an access area, the configuration comprising:
 an air supply duct disposed above the access area for supplying fresh air into the room, said air supply duct having two side air supply sections or slit outlets formed therein, and a substantially air-tight central partition section;   an exhaust air duct disposed above said air supply duct for extracting exhaust air from the room, said exhaust air duct having two slit-shaped exhaust openings formed therein and extending substantially parallel to said air supply duct and disposed in a region of a ceiling of the room so that supply air heated in the room passes vertically up into an area of the ceiling of the room; and   at least one work table having a table top and in an area at a back a slit-shaped opening formed therein through which warmed supply air can flow upward out from an area underneath said table top of said at least one work table, said at least one work table disposed at a side of the room.   
     
     
         10 . The configuration according to  claim 9 , wherein said at least one work table has a frame with two frame posts at said back between which said slit-shaped opening extends, and that said two frame posts can be lengthened in a vertical direction by adding on further posts wherein said further posts have socket grooves for receiving guide plates and/or horizontal shelf bases or energy ducts. 
     
     
         11 . The configuration according to  claim 9 , wherein said at least one work table has at least one longitudinal edge next to said slit-shaped opening having an arcuate rounded cross-sectional shape for assisting a flow movement of upwardly flowing air underneath said table top. 
     
     
         12 . The configuration according to  claim 11 , wherein said at least one longitudinal edge is an access-side longitudinal edge lying on a side of the access area, and said arcuate rounded cross-sectional shape has a trumpet-shaped or venturi-shaped cross-sectional form. 
     
     
         13 . A method of setting up a configuration for ventilating a room having an access area, which comprises the steps of:
 providing an air supply duct disposed above the access area for supplying fresh air into the room, the air supply duct having two side air supply sections or slit outlets formed therein, and a substantially air-tight central partition section;   providing an exhaust air duct disposed above the air supply duct for extracting exhaust air from the room, the exhaust air duct having two slit-shaped exhaust openings formed therein and extending substantially parallel to the air supply duct and disposed in a region of a ceiling of the room so that supply air heated in the room passes vertically up into an area of the ceiling of the room; and   providing at least one work table in the room, an area at a back of a table top of the work table having a slit-shaped opening formed therein through which warmed supply air can flow upward out from an area underneath the table top.