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Technical Manual Centrifugal Axial Fan

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Technical Manual Centrifugal Axial Fan
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    Technical Manual on Installation, Operation, & Maintenance Centrifugal / Axial Fan   VENTEC AMBIENTAL EQUIPAMENTOS E INSTALAÇÕES LTDA Rua André Adolfo Ferrari, nº 550 - Distrito Industrial Nova Era - Indaiatuba - São Paulo CEP: 13.347.395 - C.Postal: 2086 - Fone: (19) 3801-8800 / Fax: (19) 3935-6906 e-mail: ventec@ventec.com.br  - site: www.ventec.com.br      ISO 9001:2000    Centrifugal / Axial Fan Page: 2/17 Rev.: 02 – 15/09/2008   ISO 9001:2000 CONTENTS 1 – INTRODUCTION .................................................................................................................................................. 03 2 – GENERAL CONCEPTS ....................................................................................................................................... 03 3 – DESIGN OF THE EQUIPMENT 3.1 – Arrangement 4 - Fans with rotor/helix coupled directly to motor axle end ........................................... 04 3.2 - Arrangements 3 & 12 - Fans actuated by pulleys and belts .................................................................. 04 3.3 - Arrangements 7 & 8 - Fans actuated with elastic coupling   (direct rotor rotation) ................................. 05 3.4 - Arrangements 4 – Axial Fan .................................................................................................................. 05 3.5 - Arrangements 9 – Axial Fan .................................................................................................................. 06 4 – ASSEMBLY 4.1 - Transport ............................................................................................................................................... 07 4.2 – Storage ................................................................................................................................................. 07 4.3 – Foundation ............................................................................................................................................ 07 4.4 – Seating and Connections ...................................................................................................................... 08 4.5 – Inlet cones ............................................................................................................................................. 08 4.6 – Valves 4.6.1 - Rectangular Venetian blind with parallel blades ......................................................................... 09 4.6.2 - Rectangular Venetian blind with opposing blades ...................................................................... 09 4.6.3 – Radial Venetian blinds ............................................................................................................... 09 4.7 – Couplings 4.7.1 – Direct coupling ........................................................................................................................... 09 4.7.2 – Coupling by gears ...................................................................................................................... 09 4.7.3 – Coupling by mean of pulleys and belts ...................................................................................... 10 4.8 – Power Supply ........................................................................................................................................ 11 4.9 – Axial Fan – Preparation of start ............................................................................................................ 11 5 – OPERATION 5.1 - Rotor ...................................................................................................................................................... 12 5.2 – Internal part of body .............................................................................................................................. 12 5.3 – External part of body ............................................................................................................................. 12 5.4 – Valves ................................................................................................................................................... 12 5.5 – Equipment start-up ............................................................................................................................... 12 5.6 – Care ...................................................................................................................................................... 12 6 – MAINTENANCE 6.1 – General Comment ................................................................................................................................ 14 6.2 – Vibrations .............................................................................................................................................. 14 6.3 – Rotor disassembly ................................................................................................................................ 14 6.4 – Body ...................................................................................................................................................... 14 6.5 - Bearings ............................................................................................................................................... 14 6.6 – Belts ...................................................................................................................................................... 15 6.7 – Lubrication ............................................................................................................................................ 15 6.8 – Troubleshooting .................................................................................................................................... 16 6.9 – List of spare parts for 2 years of Operation .......................................................................................... 17    Centrifugal / Axial Fan Page: 3/17 Rev.: 02 – 15/09/2008   ISO 9001:2000 1 – INTRODUCTION The recommendations provided in this manual have been prepared based on the data of the project involved and experimental laboratory know-how that made it possible to apply the products supplied. However, the user has additional information about hands-on operating conditions and about the workplace. Therefore, the user can join this know-how to the hands-on recommendations in this guide; information and more specific details on each component supplied by the manufacturer and prepare a good installation and operation scheme and a safe maintenance program. Several data sheets specific to the sets and to key accessories are part of this Manual. They indicate the most relevant technical and construction characteristics. Besides the recommendations in this manual, which must be considered as supplementary, we recommend not leaving aside the usual norms relating to good operation, maintenance and installation techniques. It must be pointed out that the use of qualified personnel, both in operation and in maintenance of the equipment means eliminating countless problems. 2- GENERAL CONCEPTS _____________________________________________________________________ Centrifugal /Axial fans are rotating machines, volumetric displacers of gaseous fluids. They key characteristics to select the fans are fluid volume and air pressure to be overcome for this displacement. Together with these two characteristics are density (specific weight) and aggressiveness of the displaced fluid. Based on this information from the customer process, the project for the equipment is carried out. However, it is important to use the equipment as designed. In case of equipment altering the equipment, please inform the manufacturer to optimize your operation.   In sight of the constructive differences between centrifugal and axial fans, the recommendations of these manuals must only be considered where applicable.    Centrifugal / Axial Fan Page: 4/17 Rev.: 02 – 15/09/2008   ISO 9001:2000 3 – EQUIPMENT DRAWING 3.1 - Arrangement 4 – Fans with rotor coupled directly to motor axle end 3.2 - Arrangement 3 & 12 Fans actuated by pulleys and belts 7 – Motor 8 – Sealing 9 – Body 10 – Flexible collar 11 – Register at discharge 1 – Flexible collar 2 – Radial register at aspiration 3 – Cap and cone 4 – Rotor 5 – Hub 6 – Motor base 1 – Flexible collar - optional 2 – Radial register - optional 3 – Cap and cone 4 – Rotor 5 – Axle 6 – Bearings 7 – Bearing base 8 – Fan pulley 9 – Actuating pulley 10 – Belts 11 – Belt protection 12 – Body 13 – Unique base - optional 14 Motor rail – optional 15 – Motor 16 – Register for discharge – optional 17 – Discharge flexible collar 18 – Sealing 19 – Cooling propeller 20 - Hub
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