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Phone: (593) 2 3062500
Cell.: (593) 8 4653217E-mail: [email protected]
Subject: PetroEcuador
Project: PetroEcuador Tank Farm Upgrade
Dated: September 6, 2013
To Francisco Zumrraga P.E.,
Here our take on Belt vs. Gear Drives:
Belt Drive Advantages:Clean drive using Goodyear Herringbone
Belt (positive drive) No oil
Half the number of bearings compared to a gearbox All bearings
greased for life and sealed
No gearbox oilingtherefore no possibility of oil on the
ground
Cheaper spare parts no gears or coupling parts
Quiet drive 85dBa
Belts have progressed over the years from V Belts to Herringbone
designs, belts are now of a positive tooth form
with as much as 97%-98% power efficiency
Mechanical Seal can be changed without removing major
components
Typical Philly Swivel-Angle Mixer c/w Auto Actuator installed on
a crude oil tank.
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Typical Philly Fixed-Angle Mixer installed on an Asphalt /
Bitumen Tank
Typical Philly Swivel-Angle Mixers (4) installed on a crude oil
tank 103M diameter
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Disadvantages of Gear Drives:
Parts are more expensive more Bearings & Gear Set &
Spacer Coupling
Gearbox requires oil could leak on the ground if an Oil Seal
fails
Some Side-Entry Mixer Gearboxes run very hot, due to lack of
surface area cooling
Motor to Gearbox Coupling requires accurate setting or it will
fail regularlyMotors supported vertical on a Frame can create more
vibration due to overhung support
Shorter Main Shaft bearing support can cause vibration from the
propeller
Gearbox has to be removed on many brands to change the
mechanical seal.
Lightnin-Plenty Swivel-Angle Gear Drive leaking oil from the
Gearbox,
and crude oil from the mechanical seal.
Lightnin-Plenty Swivel-Angle Gear Drive leaking oil from the
Gearbox,
and crude oil from the mechanical seal.
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Lightnin Fixed-Angle Gear Drive leaking product from the
mechanical seal.
Catastrophic failure of a Jensen Swivel-Angle Gearbox driven
mixer, 17,000 bbls of
crude oil spilt on the ground.
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Christopher F. Hastings
Market Specialist Petroleum IndustryGlobal Projects Group
Philadelphia Mixing Solutions, Ltd.
1221 East Main Street
Palmyra, PA 17078 USA
Office/Oficina 281-246-4480
Mobile/Celular 281-224-2720
[email protected]
NOTICE
The Materials contained in this document are deemed confidential
and proprietary product of Philadelphia Mixing Solutions, Ltd. Any
reproduction,
distribution, or sharing of the contents, in whole or in part,
with an individual or entity other than the direct recipient of
this material, its
authorized agents, or employees is strictly prohibited.
Philadelphia Mixing Solutions, Ltd. retains all rights herein.
Philadelphia Mixing Solutions,
Ltd. 2013
mailto:[email protected]:[email protected]:[email protected]
