hydrogen dryer
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HYDROGEN DRYER TURBOGENERATORS PRODUCT SPECIFICATION Introduction BRUSH is a manufacturer of hydrogen cooled and hydrogen and water cooled generators. As part of the auxillary equipment for the cooling circuit for the generators BRUSH can also provide hydrogen dryers for humidity removal. Basic principle of hydrogen dryer The hydrogen dryer works on the principle of humidity freezing. The dryer forms part of the gas supply system of the cooling circuit to the generator. Humidity contained in the hydrogen is passed over evaporator cooling coils where it becomes frozen. After a cycle time of several hours, the dryer is switched off and the condensation unit starts to allow the frozen water to collect at the bottom of the dryer vessel. The water level is monitored by an alarm and then removed by the operator from the tank. Dryer vessels Max. hydrogen pressure 500 kPa Cooling power 1710 W Max. current (compressor in operation) 8.1 A Rated current (compressor in operation) 4.7 A Rated current (compressor out of operation) < 0.4 A Main parts of hydrogen dryer Dryer vessel consist of : • steel sheets, profiles and tubes • stainless sheets, profiles and tubesstainless • weldments copper sheets, profiles and tubes • accessories Dimensions: Weight: Condensation unit 2100 x 600 x 600 mm (high x width x long) 180 kg Condensation unit consist of : • steel sheets, profiles and tubes • copper sheets, profiles and tubes • cooling unit Bitzer • accessories • type of refrigerant: R 134a • refrigerant volume: 3.4 kg Dimensions: Weight: 1300 x 860 x 760 mm (high x width x long) 160 kg Control box consist of : • steel box • min. protection IP 55 • switches, relays, terminals, wiring • control unit • lights, control buttons Dimensions: Weight: Control box 400 x 600 x 250 mm (high x width x depth) 20 kg

Compact hydrogen dryers delivered for 4 unit of NPP Dukovany, Czech Republic Electrical interfaces • power supply: • logical inputs: • logical outputs: 3NPE ~ 50Hz, 400V/TN-S 230V AC, 0.24mA, R ³ 800kΩ (for signal “generator rpm” can be used 24V DC, 22mA) max. 250V AC, 30V DC, max. 2A, max. 80VA Process interfaces • • Condensation unit with control box inlet: outlet: Conformity with pressure vessel requirements BRUSH supply the pressure vessel manufactured in accordance with Pressure Equipment Directive 97/23/EC. Standards and documentation The hydrogen dryer is manufactured and tested in...