Method for ventilating a heavily cluttered room

Abstract

The disclosure first relates to a room comprising an inner space delimited by an upper wall, a lower wall and side walls, the room being provided with a ventilator, the ventilator including: an extractor operably extracting air from the inner space towards the outside of the room, arranged on one side wall; and air intakes on the other side walls. The disclosure also relates to a method for ventilating a room including an inner space delimited by an upper wall, a lower wall and side walls, the method including the extraction of air from the inner space to the outside of the room by an air extractor arranged on one side wall, and the entry of air via air intakes arranged on the other side walls. The disclosure further relates to an air intake adapted to perform the method above.

1 - 16 . (canceled) 
     
     
         17 . An air intake comprising:
 an air injection grid adapted to be positioned in an opening formed in a wall;   an enclosure adapted to be fastened on one side of the wall and communicating with the air injection grid; and   an air entry conduit adapted to be fastened to the wall and communicating with the enclosure by a protective grid, the air entry conduit having a section smaller than the section of the enclosure along a plane perpendicular to the air injection grid.   
     
     
         18 . The air intake according to  claim 17 , wherein at least one of: (a) the section of the air injection grid available for the passage of air on the enclosure side is larger than the section of the air injection grid available for the passage of air on the side opposite the enclosure and (b) the air injection grid is provided with a heater. 
     
     
         19 . The air intake according to  claim 17 , wherein the air entry conduit is provided with baffles and drains, the baffles are provided with a heater, and the baffles have a surface oriented toward the enclosure and a surface oriented opposite the enclosure, the surface oriented toward the enclosure being less rough than the surface oriented opposite the enclosure. 
     
     
         20 . A room comprising an inner space delimited by an upper wall, a lower wall and side walls, the room being provided with a ventilator, the ventilator further comprising:
 an extractor operably extracting air from the inner space towards the outside of the room, arranged on one side wall;   air intakes on the other side walls; and   at least one fan in the inner space.   
     
     
         21 . The room according to  claim 20 , wherein the at least one fan is located near a side wall facing the side wall provided with the air extractor, the at least one fan comprising:
 at least one fan situated close to the lower wall and oriented so as to move air toward the upper wall; and   at least one fan situated close to the upper wall and oriented so as to move air toward the side wall provided with the air extractor.   
     
     
         22 . The room according to  claim 20 , wherein the side wall provided with the air extractor comprises two end portions situated close to respective adjacent side walls, and a central portion between the two end portions, the air extractor being distributed on the side wall so that air extraction capacity per surface unit in the central portion is greater than air extraction capacity per surface unit in the end portions. 
     
     
         23 . The room according to  claim 20 , with no heater for the inner space. 
     
     
         24 . The room according to  claim 20 , which is a natural gas liquefaction module. 
     
     
         25 . The room according to  claim 20 , wherein the inner space is cut vertically into successive layers, the power and implantation of the air extractor on the side wall is adapted to the ventilation in each layer, and the flow of air has a laminar state. 
     
     
         26 . The room according to  claim 20 , wherein the air intakes each comprise:
 an air intake comprising:   an air injection grid adapted to be positioned in an opening formed in a wall;   an enclosure adapted to be fastened on one side of the wall and communicating with the air injection grid; and   an air entry conduit adapted to be fastened to the wall and communicating with the enclosure by a protective grid, the air entry conduit having a section smaller than the section of the enclosure along a plane perpendicular to the air injection grid.   
     
     
         27 . A method for ventilating a room comprising an inner space delimited by an upper wall, a lower wall and side walls, the method comprising extracting air from the inner space to the outside of the room by an air extractor arranged on one side wall, and entry of air via air intakes arranged on the other side walls, the method also comprising moving air in the inner space using at least one fan positioned in the inner space. 
     
     
         28 . The method according to  claim 27 , wherein the air movement is done close to a side wall facing the side wall provided with the air extractor, and the air movement comprises:
 moving air from bottom to top close to the lower wall and the side wall facing the side wall provided with the air extractor;   moving air toward the side wall provided with the air extractor close to the upper wall and the side wall facing the side wall provided with the air extractor.   
     
     
         29 . The method according to  claim 27 , wherein a ratio of the air flow extracted on the surface of the side wall provided with the air extractor is less than or equal to 0.5 m/s. 
     
     
         30 . The method according to  claim 27 , wherein the room is a natural gas liquefaction module. 
     
     
         31 . The method according to  claim 27 , wherein the inner space is cut vertically into successive layers, the power and implantation of the air extractor on the side wall is adapted to the ventilation in each layer, and the flow of air has a laminar state. 
     
     
         32 . The method according to  claim 27 , wherein the air intakes each comprise:
 an air intake comprising:   an air injection grid adapted to be positioned in an opening formed in a wall;   an enclosure adapted to be fastened on one side of the wall and communicating with the air injection grid; and   an air entry conduit adapted to be fastened to the wall and communicating with the enclosure by a protective grid, the air entry conduit having a section smaller than the section of the enclosure along a plane perpendicular to the air injection grid.