{"id":2865,"date":"2020-08-21T00:00:00","date_gmt":"2020-08-21T00:00:00","guid":{"rendered":"https:\/\/metmann.com.185-176-9-81.185-176-9-81.visualpublinet.com\/per-que-es-necessari-el-calcul-de-ventilacio-i-extraccio-duna-nau-industrial\/"},"modified":"2020-08-21T00:00:00","modified_gmt":"2020-08-21T00:00:00","slug":"per-que-es-necessari-el-calcul-de-ventilacio-i-extraccio-duna-nau-industrial","status":"publish","type":"post","link":"https:\/\/www.metmann.com\/ca\/per-que-es-necessari-el-calcul-de-ventilacio-i-extraccio-duna-nau-industrial\/","title":{"rendered":"Per qu\u00e8 \u00e9s necessari el c\u00e0lcul de ventilaci\u00f3 i extracci\u00f3 d′una nau industrial"},"content":{"rendered":"

En moltes ocasions, quan una empresa compra o lloga una nau industrial, passa per alt l′estat de sistema de ventilaci\u00f3 existent en les instal\u00b7lacions, cosa que pot comportar problemes i tr\u00e0mits que alenteixen l′inici de l′activitat empresarial. La import\u00e0ncia de la ventilaci\u00f3 industrial rau en la normativa que s′ha de complir per evitar possibles sancions.<\/p>\n

\tPer evitar aquest tipus de problemes i com a experts en el c\u00e0lcul de ventilaci\u00f3 industrial, hem preparat aquest post en el qual trobar\u00e0s una petita guia amb tots els aspectes legals i recomanacions necess\u00e0ries perqu\u00e8 el c\u00e0lcul de sistema de ventilaci\u00f3 industrial de la teva empresa no es converteixi en una preocupaci\u00f3 a més. \t<\/p>\n

 <\/p>\n

<\/span><\/p>\n

Normativa de ventilaci\u00f3 industrial<\/h2>\n

Malgrat que no hi ha una normativa espec\u00edfica en relaci\u00f3 a el c\u00e0lcul de ventilaci\u00f3 industrial cal respectar un nivell m\u00ednim de qualitat en l′aire perqu\u00e8 els operaris que treballen a la nau respirin un aire de qualitat adequat dins de les seves possibilitats.<\/p>\n

\tEn el Reial Decret 427 s′esmenta l′\u00e0mbit de ventilaci\u00f3 de les naus industrials, segons aquesta normativa, per al c\u00e0lcul de la ventilaci\u00f3 d′una nau industrial s′hauria de tenir en compte que cal aplicar una renovaci\u00f3 de l′aire de 30 m3 per treballador cada hora en cas que a la nau no hi hagi fums de tabac (alguna cosa obligatori a dia d′avui i que treu a la llum l′antiguitat de la normativa) en l′hipot\u00e8tic cas que en la nau existissin fums procedents de l′tabac la renovaci\u00f3 de l′aire augmentaria a 50m3 per treballador i hora.<\/p>\n

\tTenint en compte les circumst\u00e0ncies normals de treball en naus industrials, els nivells proposats pel Reial Decret 427 s\u00f3n insuficients per mantenir una qualitat d′aire confortable i evitar que l′ambient s′acabi viciant. Aix\u00f2 és aix\u00ed donat que la renovaci\u00f3 d′aire tan sols es té en compte per persona en la normativa i no la mida de la nau o la capacitat de contaminaci\u00f3 de l′aire.<\/p>\n

\tAix\u00ed doncs, el c\u00e0lcul de ventilaci\u00f3 i extracci\u00f3 d′una nau industrial no és el mateix per a un equip de 30 persones treballant en una nau de 2500m2 soldant metall, que les mateixes persones en un espai més redu\u00eft utilitzat com a magatzem i en qu\u00e8 a penes hi ha maquin\u00e0ria.<\/p>\n

\tHi ha diferents criteris a aplicar en funci\u00f3 a la mida de les instal\u00b7lacions, els treballs realitzats en el seu interior i el nombre de treballadors que operin en el seu interior \t<\/p>\n

<\/span><\/div>\n
 <\/div>\n
\t\t\t<\/p>\n

Com realitzar el c\u00e0lcul de ventilaci\u00f3 i extracci\u00f3 d′una nau industrial<\/span><\/h2>\n

Arribat aquest punt, segurament et preguntar\u00e0s quins aspectes s′han de tenir en compte a l′hora d′establir la ventilaci\u00f3 d′una nau industrial. Com a experts en c\u00e0lcul de ventilaci\u00f3 i extracci\u00f3 de nau industrial a MET MANN recomanem tenir en compte els seg\u00fcents punts clau.<\/span><\/span><\/p>\n

\t\t\t \t\t\t<\/p>\n

    \n
  • \n

    Cal tenir en compte el context de l′recinte a l′hora d′establir el c\u00e0lcul de la ventilaci\u00f3 necess\u00e0ria en funci\u00f3 de l′activitat desenvolupada en el seu interior, la contaminaci\u00f3 aportada per la maquin\u00e0ria, la temperatura, el nombre de treballadors i per descomptat, l′extensi\u00f3 de l′recinte.<\/span><\/p>\n<\/li>\n<\/ul>\n

    \t\t\t \t\t\t<\/p>\n

      \n
    • \n

      Un cop considerats tots els factors anteriors, s′han de fer un nombre m\u00ednim de renovacions per hora, de manera que l′aire es renovi completament entre 4 i 10 vegades en cada hora d′activitat.<\/span><\/p>\n<\/li>\n<\/ul>\n

      \t\t\t \t\t\t<\/p>\n

      D′aquesta manera, suposant que disposem d′un espai de 50 metres de llarg, 20 d′ample i 6 d′alt, el c\u00e0lcul es realitzar\u00e0 de la seg\u00fcent manera:<\/span><\/p>\n

       <\/p>\n

      Calcular els metres c\u00fabics totals<\/span><\/h3>\n
      \n
      <\/span><\/div>\n
       <\/div>\n

      50m x 20m x 6m = 6000m3
      \t\t\t\tAquests 6000m3 corresponen a el volum total de l′recinte que s′ha de tenir en compte. \t\t\t\t<\/p>\n

       <\/div>\n
      \t\t\t\t\t<\/div>\n

      Calcular el volum a renovar per hora en funci\u00f3 a el nombre de renovacions desitjades<\/h3>\n
      <\/span><\/div>\n
      <\/span><\/div>\n
       <\/div>\n
      \t\t\t\t\t\t<\/p>\n

      Establint el m\u00ednim de renovacions recomanades (4 renovacions per hora)
      \t\t\t\t\t\t\t6000m3 x 4 = 24.000m3
      \t\t\t\t\t\t\t <\/p>\n

      \t\t\t\t\t\t\tPer renovar l′aire de les instal\u00b7lacions de manera completa un total de 4 vegades per hora, cal establir un cabal d′aire de 24.000m3 per al que ser\u00e0 necessari un sistema de ventilaci\u00f3 industrial.<\/p>\n

      \t\t\t\t\t\t\tUn sistema de ventilaci\u00f3 industrial est\u00e0 basat en punts d′entrada i sortida d′aire cap a l′exterior que creen un corrent que empeny l′aire viciat cap a la sortida. L′aire fresc i renovat accedeix a l′interior a través d′unes reixetes i escombra l′aire viciat cap amunt, on hi ha uns extractors que el tornen a l′exterior. <\/p>\n

       <\/span><\/p>\n

      Disseny de sistema de ventilaci\u00f3<\/span><\/h2>\n

      Per a la instal\u00b7laci\u00f3 d′un sistema de ventilaci\u00f3 adequat en naus industrials cal tenir en compte una s\u00e8rie de factors a més del cabal d′aire necessari per a la renovaci\u00f3 d′aire interior. Per optimitzar aquest procés s′han de tenir en compte el tipus de ventiladors, els punts de situaci\u00f3 dels extractors i reixetes de ventilaci\u00f3, de manera que el corrent d′aire elimini l′aire viciat sense que es produeixi cap recirculaci\u00f3 de l′aire.<\/p>\n

      \t\t\t\t\t\tSi consideres que els teus instal\u00b7lacions no estan adequadament condicionades o tens dubtes sobre el c\u00e0lcul de la ventilaci\u00f3 i extracci\u00f3 de la teva nau industrial a MET MANN podem ajudar-te. Som experts en l′estudi i instal\u00b7laci\u00f3 d′aquest tipus de sistemes de ventilaci\u00f3 en ind\u00fastries i naus de tot tipus.<\/p>\n

      \t\t\t\t\t\tNo dubtis en contactar amb nosaltres perqu\u00e8 els nostres especialistes t′assessorin sobre com millorar les condicions laborals en la teva nau industrial. \t\t\t\t\t\t<\/p>\n


      \t\t\t\t\t\t\t\t<\/span><\/div>\n

      <\/span> \t\t\t\t\t<\/p>\n

       <\/p>\n

      \t\t\t\t\t<\/div>\n

      \t\t\t\t<\/div>\n

      <\/span> \t\t\t<\/p>\n

      <\/span><\/p>\n

      \t\t\t\t<\/p>\n

      <\/span> \t\t<\/div>\n

      <\/span> <\/p>\n

       <\/p>\n

      \t<\/p>\n


      \t\t<\/span><\/div>\n","protected":false},"excerpt":{"rendered":"

      Les naus industrials s\u00f3n ambients on moltes vegades, la ventilaci\u00f3 brilla per la seva abs\u00e8ncia. Aix\u00f2 fa necessari que realitzar el c\u00e0lcul de ventilaci\u00f3 i extracci\u00f3<\/span> d′una nau industrial sigui un requeriment de gairebé obligat compliment i que s′ha de passar per alt.<\/p>\n","protected":false},"author":1,"featured_media":480,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_joinchat":[],"footnotes":""},"categories":[51],"tags":[],"acf":[],"yoast_head":"\r\nC\u00e0lcul de ventilaci\u00f3 i extracci\u00f3 d′una nau industrial<\/title>\r\n<meta name=\"description\" content=\"Calcular quanta ventilaci\u00f3 i extracci\u00f3 necessita una nau industrial \u00e9s b\u00e0sic per assegurar la correcta qualitat de l′aire. 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