808 power mizer blowers industrial process applications

8/6/2019 808 Power Mizer Blowers Industrial Process Applications

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Power Mizer ®

High E fciency CastCentri ugal Blowers ForIndustrial Process Applications



Spencer Power Mizer multistagecentri ugal blowers provide highe fciency air delivery in heavy-dutyindustrial process applicationssuch as:

• Sul ur recovery.

• Air knives.• Hazardous vapor control.• Soil remediation.• Fluidized beds.• Central vacuum systems.• Debris removal.• Felt dewatering.• Air separation.• Landfll gas boosting.• Combustion air delivery.• Wastewater aeration.

Cast components with lowoperating sound levelsThe inlet section, return channelsand discharge section o PowerMizer blowers are gray cast ironwith excellent strength, chemicalresistance and sound attenution.

The rotor assembly o Power Mizerblowers in Series 4000 throughSeries 7000 contain cast aluminumimpellers (shown below). Theirthree-dimensional blades trans erenergy to the airstream with veryhigh e ciency. Blade con gurationsinclude radial, backswept andcombinations o both, selected bySpencer engineers using specializedcomputer so tware.

Superior aerodynamicsThe air handling components othese blowers were designed in theSpencer Development Laboratory.By avoiding abrupt velocity changesthat create turbulence and wasteenergy, Spencer engineers achievedsmoother, more energy-e cient air-fow rom blower inlet to discharge.

Uniquely shaped impellers, returnchannels with air oil-shaped vanes,redesigned inlet and dischargepassages and vaneless di usersall contribute to a peak adiabatice ciency that is above 80%.

Precisely balanced rotorsSpencer’s exacting balancingprocedures produce an overallvibration level o .19 in/sec orless or Series 2500 – 7000; and.23 in/sec or less or Series 8000 –the best in the industry. Thisdecreases bearing stress, whichimproves bearing li e and blowerreliability.

Year-in, year-out savingsPower Mizer blowers o er long-term power savings o tens othousands o dollars per blowerper year. And you can o tendownsize the motor to save evenmore!

Example: (assuming savings o38 HP or one blower).38 x .746 = 28.348 kW saved.28.348 x 24 x 365 (continuousannual operation) = 248,328kWH.248,328 x $.10/kWH (local utilitycost) = $24,832.Motor e ciency o 95% yieldsan actual savings o $26,139 onan annual basis.

Product range

• Seven Power Mizer series withtwo to ten stages per blower.

• Pressure to 28 psig; volume to35,000 ic m; power to 3700 bhp.

• Oil lubrication is available on allseries while grease lubricationis also available or Series 2500and 3500.

Remember, you can saveonly once on the purchase

price, but you’ll savecontinuously with a moree fcient blower!

AIR @ 68 DEG. F, RELATIVE HUMIDITY: 36%, INLET PRESSURE: 14.7 PSIA, OPERATING SPEED: 3550 RPM

BLOWER PERFORMANCE

Spencer high-e fciency blowers reduce operating costs.



Unique setup o two Power Mizer blowers in series, driven by a single motor, delivers air or a high alti tudetest rig or automotive engines.Heat exchanger between blowers

removes the heat o compression generated in the frst blower.

Sha t SealsDepending upon intended blower use,

either aluminum labyrinth seals orcarbon ring seals are provided.

BearingsRotor assembly supported at both

ends by outboard bearings designedor minimum L-10 li e o 100,000 hours.

MotorHorsepower requirementsare available up to

3700 BHP at standardconditions.

ImpellersCast aluminum alloy impellers withvarying combinations o radial andbackward curved blades availableto attain desired per ormanceratings.

External Tie RodSteel rods hold returnsection securely betweeninlet and discharge.

Base DesignStructural steel basedesign. Optional APIdesign bases are available.

Bearing HousingCooling Fan (Series 8000)Optional eature tosignifcantly reducedischarge bearingtemperatures.

Balance Piston(Series 7000 & 8000)Equipped on largermodels, it is designedto lessen the thrust loadto protect the bearings

rom overloading.

Inlet & Discharge FlangesDrilled and tapped to ANSIB16.5 125#/150# standards;positioning can be vertical orhorizontal (le t to right).

Inlet Section, Discharge Section& Return ChannelsCast iron class 30.

Rotor AssemblyOne-piece machined sha tsupporting cast aluminum,dynamically balanced impellers.

Detail A Detail B

Power Mizer Blower Features

Spencer high-e fciency blowers providequick payback on your investment.



Integrated system approachSpencer o ers ull system supplycapability rom blowers and theircontrols to tubing, valves and otherrequired components. You cancount on Spencer to provide air andgas handling systems that areprocess-optimized, energy-e cientand totally integrated. In addition toPower Mizer cast blowers, otherblower selections include:

• Fabricated centri ugal blowers.

• Gas boosters.

• Regenerative blowers.

• Single-stage pressure blowers.

Accessories• Standard and custom electrical

control panels, UL and CUL Listed

controls.• Blower and motor protective devices.

• Valves and silencers.

• Gauges and instruments.

• Tubing and ttings o steel,stainless steel, galvanized steeland aluminum.

Over a century o experience A ter devoting more than 100 yearsto air and gas handling equipment,The Spencer Turbine Company isrespected worldwide or its qualityproducts and value-added services.

Sales and technical supportBesides direct sales o ces, Spencerhas manu acturers’ representativescovering all o North America andother agents around the globe.

Altogether, Spencer has theindustry’s largest sales organization

or on-site assistance with systemdesign and product selection.

Power Mizer vacuum producer with pulse-type separator providing acontinuous duty, high velocity dustcollection system at a printed circuit

board manufacturer.

Bulletin No. 808F.1 Copyright ©2007 The Spencer Turbine Company 1207KBA2.5

Power Mizer blowers or installation at an Indonesian refnery eature two special drive confgurations; one has a steam turbine power source; the other has a motor and gear increaser or use with 50 Hz electricity.

Services• Custom designs.

• Testing and applications laboratory.

• Spare parts supply.

• In-house and eld service or allSpencer products.

Power Mizer blower with AcousticalBelly Wrap™, an effective noise

reduction device.

For selection assistance, contact your local representativeor email [email protected].

808 power mizer blowers industrial process applications

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