Supply air system

Abstract

An apparatus and a method for controlling the same for conditioning an air flow for an industrial installation, the apparatus having a cooling medium circuit, a cooler incorporated into the cooling medium circuit and having a cooling medium inlet and a cooling medium outlet, at least one consumer incorporated into the cooling medium circuit and having a cooling medium inlet and a cooling medium outlet, a supply air device for conditioning air for the industrial installation, wherein the supply air device has an air/cooling medium heat exchanger, an air inlet for feeding air outside the industrial installation to the air/cooling medium heat exchanger, an air outlet for feeding air from the air/cooling medium heat exchanger to the industrial installation, a cooling medium inlet and a cooling medium outlet.

1 . An apparatus for conditioning an air flow for an industrial installation, comprising:
 a) a cooling medium circuit,   b) a cooler incorporated into the cooling medium circuit and having a cooling medium inlet and a cooling medium outlet,   c) at least one consumer incorporated into the cooling medium circuit and having a cooling medium inlet and a cooling medium outlet,   d) a supply air device for conditioning the air flow, wherein the supply air device has
 an air/cooling medium heat exchanger, 
 an air inlet for feeding air outside the industrial installation to the air/cooling medium heat exchanger, 
 an air outlet for feeding air from the air/cooling medium heat exchanger to the industrial installation, 
 a cooling medium inlet and 
 a cooling medium outlet, 
   wherein   e) the cooling medium outlet of the consumer can be connected to the cooling medium inlet of the supply air device.   
     
     
         2 . The apparatus according to  claim 1 , wherein the supply air device has a humidifier. 
     
     
         3 . The apparatus according to  claim 1 , wherein the cooler is designed for operation without a free cooling unit. 
     
     
         4 . The apparatus according to  claim 1  further comprising a control system which is designed to establish a connection between the cooling medium outlet of the consumer and the cooling medium inlet of the supply air device if the temperature of the air supplied via the air inlet of the supply air device is below the temperature of the cooling medium at the cooling medium inlet of the supply air device. 
     
     
         5 . A method for controlling an apparatus for conditioning an air flow for an industrial installation, wherein the apparatus comprises a cooling medium circuit having a cooler, at least one consumer incorporated into the cooling medium circuit and a supply air device, incorporated into the cooling medium circuit, for conditioning outside air for the industrial installation, the method comprising the steps of:
 determining the temperature of the outside air; and   heating the outside air in the supply air device by means of the cooling medium downstream of the consumer if the temperature of the outside air falls below a threshold temperature.   
     
     
         6 . The method according to  claim 5 , further comprising the step of:
 determining the temperature of the cooling medium downstream of the consumer, wherein the threshold temperature is the temperature of the cooling medium downstream of the consumer.   
     
     
         7 . The method according to  claim 1 , further comprising the step of:
 comparing the outside air temperature and the cooling medium temperature.   
     
     
         8 . The method according to  claim 5 , further comprising the step of:
 humidifying the outside air before heating the outside air.   
     
     
         9 . The method according to  claim 5 , wherein heating the outside air causes cooling of the cooling medium, and the cooled cooling medium is fed to a further consumer.