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The diagonals brace the structure and carry loads 

to heavy-duty, hot dip glavanized anchor castings. The 
anchor castings transmit wind and/or earthquake loads 
from the structure directly into the foundation.

For standard wind load conditions, anchor bolts are 

required only at the perimeter.

Structural ceramic rings or glass reinforced nylon 

shear plates are used in conventional connector ring 
joints where greater strength is required than bolted 
joints provide. Permissible joint loads are based on 
Forest Products Laboratory test values established by 
procedures for commercial ring connectors.

The fan deck is pressure treated exterior grade tongue-

and-groove fir plywood designed for a uniform load of 60 
psf, or a 600 pound concentrated live load. 

Содержание Cooling Tower 600

Страница 1: ... Marley Class 600 CoolingTower ...

Страница 2: ...2 ...

Страница 3: ...l integrity and a host of other benefits that have become synonymous with the Marley name Class 600 cooling towers are available in various cell sizes fill air travels and fill heights Within each of these cell plans several aspects of the basic design can be varied in order to achieve optimum operating economy The choices include variations in fill type and density fan type and size fan cylinder ...

Страница 4: ...tuned to maximize efficiencies at actual conditions The commercially available fans used by other cooling tower suppliers lack this design advantage Consequently they are often applied at flow and pressure conditions for which they are ill suited Unpredictable lower efficiencies result with proportional reduction in tower capacity Fan Cylinders Venturi shaped FRP cylinders combine minimal entrance...

Страница 5: ...h permit constant surveillance of oil level in each unit Driveshafts Marley manufactured driveshafts transmit power from the motor to the Geareducer All Marley driveshafts are manufactured from either carbon fiber composite or stainless steel tubes with stainless steel flanges Bonded neoprene flexible elements transmit torque and require no lubrication Marley driveshafts are full floating assembli...

Страница 6: ...ing from a given tower cell size for the design performance conditions Long functional life for cooling tower fill depends on the splash bar support Wood lath and PVC splash bars are supported in FRP grids Chemically the resistance of FRP to acids alkalis salts and oils is rated excellent through concentrations much higher than could ever occur in a cooling tower Mechanically the FRP support syste...

Страница 7: ...ch flow control valve discharges into a splash box located in the hot water basin The lower box delivers water to the hot water basin both through slots in the bottom and by overflow The cover box dissipates directional velocity and controls splash The open gravity flow design allows the operator to vary water rates over a wide range while maintaining uniform water distribution to the fill a prere...

Страница 8: ...roducts Association and CTI STD 114 Wind load criterion is per ASCE 7 and stability is based upon an applied lateral load of 2 5 of the total operating weight Allowable stress values for all lumber are reduced for wet service temperature and duration as appropriate Unless otherwise specified all lumber regardless of species is pressure treated after fabrication Treatment is Copper Chromate Arsenat...

Страница 9: ...t the perimeter Structural ceramic rings or glass reinforced nylon shear plates are used in conventional connector ring joints where greater strength is required than bolted joints provide Permissible joint loads are based on Forest Products Laboratory test values established by procedures for commercial ring connectors The fan deck is pressure treated exterior grade tongue and groove fir plywood ...

Страница 10: ...in freezing climates Continuous 2 x 4 members beneath the louvers provide bearing across the entire louver width These supports are rigidly framed into louver posts by through bolting at the bottom and are tied near the top by molded structural polypropylene tie bars Louvers are supported on 4 0 centers by 4 x 4 structural columns This scheme provides more than twice the bending strength compared ...

Страница 11: ...le heaviest component in the mechanical equipment package Cable and power for rigging are not normally provided by SPX Endwall Davit The endwall davit is offered for Class 600 towers equipped with smaller Geareducers Series 27 and smaller This galvanized steel hoisting device is permanently installed at a corner of the fan deck and is rated for a load of 1000 pounds with single sheave rigging The ...

Страница 12: ...e for your peace of mind our engineers can give your tower a thorough inspection to evaluate its current condition This usually allows you to foresee and forestall prob lems before they become serious Reconstruction Service Due to operating or atmospheric conditions or age sooner or later your tower will be in need of repairs above and beyond those categorized as normal maintenance Our reconstruct...

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