Page 386 - Subyek Teknik Mesin - Forsthoffers Best Practice Handbook for Rotating Machinery by William E Forsthoffer
P. 386

Lube, Seal and Control Oil System Best Practices  Be st Practice 7.5

                                                                                 Fig 7.5.6   Typical pipe sizing chart





























              Filter sizing
              Filter information should be reviewed to confirm correct filter
              sizing for the normal and the maximum viscosity case (in the
              case of viscous fluids). Additionally, maximum filter collapse
              pressure, internal filter cartridge design and cartridge sealing
              design should also be reviewed at this time.

              Instrumentation
              All instrumentation should be reviewed to confirm proper se-
              lection, materials of construction and proposed installation lo-
              cations. All instrumentation loops should be reviewed to ensure
              that critical instrumentation can be calibrated and maintained  Fig 7.5.7   Console baseplate construction (Courtesy of Fluid Systems)
              while unit is in operation.

              Console layout and component arrangement             accessibility to pore grout when equipment is installed on the
                                                                   baseplate.
              Having confirmed that component sizing and selection are ac-
              ceptable, the console layout and arrangement of components  Maintenance accessibility
              must be reviewed. Methods of review use either the review of
              outline drawings of the proposed arrangement, or a model  Since equipment must be maintained and calibrated while the
              review, or a CAD 3D drawing review. Many vendors and users  auxiliary system is in operation, it is important to provide
                                                                   ample personnel space such that equipment can be maintained
              have found that models or CAD 3D drawings aid greatly in
              understanding and reviewing maintenance accessibility and  safely and reliably without damage to surrounding compo-
                                                                   nents. A rule of thumb is to provide approximately one meter
              layout considerations.
                                                                   of space around components for accessibility. Note that this is
              Console construction                                 with the utility lines installed. The review of equipment on
                                                                   a model, CAD 3D drawing or an outline should be made
              Auxiliary equipment consoles or modules house most of the  considering installation of all utility lines that will be installed
              components that are present in the auxiliary systems. Their
                                                                   in the field.
              construction should be reviewed to ensure proper stiffness and
              facilities for installation on site. Many horizontal consoles are
              constructed in a flexible manner that can result in bending or  Accessibility for on-line testing and calibration
              excessive pipe strains introduced into components during  Considering that many components (pumps, drivers, coolers,
              shipment and at installation. It is suggested that full length  filters, control valves, instrumentation) will be tested and cali-
              cross members be positioned as a minimum under pumps,  brated with equipment still being in operation, accessibility for
              coolers and filters on the equipment baseplate (see   this operation must be considered.
              Figure 7.5.7). If the baseplate is to be grouted in the field, grout  In addition to reviewing the vendor manufactured skids, the
              and vent holes should be specified and reviewed for   placement of all skids in the field must be reviewed for

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