INSTALLATION FOR THE COMPRESSED AIR DEHYDRATION Russian patent published in 2007 - IPC B01D53/26 F04B49/20 F04D27/00 

FIELD: chemical industry; gas-production industry; devices for purification of the gases.

SUBSTANCE: the invention is pertaining to the devices for purification of the gases in the different fields of the national economy, for example, in the chemical industry, gaseous industries, and is used predominantly for dehydration and purification on the drilling rigs. The installations for the compressed air dehydration includes: the compression pump (1), the refrigerator (3), two adsorbers (6) and (7), the dehydrated air main (11) with the ejector (31) and the moist air main (8) with the ejector (18), the preheater (19), the pressure regulator (35), the electronic amplifier (38), the magnetic amplifier (40) with the rectifier on the output and the pressure control sensor (34). The adsorbers are fulfilled with the cavities for the adsorbent and the heat-transfer agent and the branch-pipes for entry and exit of the heat transfer agent and the damp and dehydrated air. The ejector (18) of the moist air main is installed before the refrigerator (3). The preheater (19) is connected to the cavity for the heat-transfer agent and with the compression pump (1). The pressure control sensor (34) is mounted in the dehydrated air main (11). The compression pump (1) is supplied with the drive (32) having the rotation speed control (33) made in the form of the block of powdery electromagnetic electromagnetic couplings. The air pressure regulator (35) includes the comparison unit (36) connected to the pressure control sensor (34), the functions setting control unit (37) and the non-linear feedback unit (39). The comparison unit (36) is connected to the input of the electronic amplifier (38). The output of the electronic amplifier (38) is connected to the input of the magnetic amplifier (40). The rectifier on the output of the magnetic amplifier (40) is connected to the rotation speed control (33) of the drive (32) of the compression pump (1). The invention allows to reduce the power inputs at production of the dehydrated compressed air under the conditions of the negative environmental temperatures.

EFFECT: the invention ensures the reduced power inputs at production of the dehydrated compressed air under the conditions of the negative environmental temperatures.

1 dwg