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TurboMister Oil Mist Lubrication System

Convert any pump from "hot running" oil bath lubrication to a much cooler, longer lasting oil mist lubrication. And, it's all self contained within the pump.

wpe2.jpg (14619 bytes)The TurboMister oil "mist generator" easily mounts onto the shaft of any new or existing oil lubricated pump. The mist generator creates the oil mist within the bearing housing, allowing the bearings to operate as much as 60 F cooler than flood oil bearings at 3600 rpm. The mist generator also circulates the oil through the external reservoir shown below.

 

 




wpe3.jpg (10353 bytes)The TurboMister system oil "reservoir" (photo shows a "see through" demo reservoir - the actual reservoir is stainless steel)adds nearly a quart of additional reserve oil capacity to the pump. The reservoir contains a filter to remove contaminants and trap any moisture as well as provide additional external cooling for the oil.

 





Topics:

Why The TurboMister Was Developed.
Why Is This Technology Needed.
Overview Of Operation.
Details Of Operation.
Advantages.
Comparison With Flood OIl Lubrication.
Contact Us For A Complete Technical Paper.

Why The TurboMister Was Developed:

The Environamics TurboMisterTM Oil Mist Lubrication System was developed to bring the proven advantages of oil mist lubrication to the general range of chemical process pumps, slurry pumps, and other similar rotating equipment. Up to now, only high end, critical duty rotating equipment could "afford" to employ oil mist lubrication technology. And, these systems were primarily utilized in the petroleum refining industry. Oil mist lubrication systems typically consisted of a centralized oil mist generator and a compressed air system to transport the atomized oil to the rotating equipment bearings. Although this is arguably the absolute best way to lubricate antifriction bearings, the cost of implementing and maintaining such a system is out of the reach of most other industrial settings (i.e. chemical plants, paper mills, food processing plants, pharmaceutical operations, etc. etc.). Environamics has developed a simple, inexpensive product to generate an "oil mist" and obtain the advantages of the sophisticated oil mist systems. This system can be applied to ANSI and non-ANSI pumps, ISO and DIN pumps, slurry pumps, paper stock pumps, etc. The system is completely self contained within the pump bearing frame. It requires no external support systems to transport the oil mist or to collect the "used" oil mist. Used mist is not vented to atmosphere and therefore does not create any health and worker safety issues that have recently been cited by OSHA with compressed air oil mist systems. The system can be applied to any newly manufactured pump or retrofitted to any existing pump without modifying the basic pump. A simple "one kit fits all" covers pumps with shafts up to approximately 6" diameter.

Why Is This Technology Needed:

Environamics has spent over five years developing, testing, proving, and now manufacturing the TurboMister oil mist lubrication system. The technology stems from the need to further increase MTBF (Mean Time Between Failure) for horizontal, oil lubricated pumps. Much has been done during recent years to identify "weak link" areas in centrifugal pumps and other rotating equipment, and to either improve the basic design of the equipment at the manufacturers' level, or to modify the installation, operating and maintenance programs at the plant level.

Many areas of investigation and research, such as bearing design, shaft L3/D4 ratios (deflection), oil seals, shaft & coupling alignment, pipe strain, etc. have all resulted in incremental improvements to the "running time" for pumps. One area that has not seen a major step forward is in the area of antifriction bearing lubrication. The TurboMister represents the first major advancement in oil lubrication that can be applied universally and affordably.

Overview of Operation:

The Environamics TurboMister is a revolutionary device that mechanically generates an oil mist completely internally within the bearing frame of the pump, or other rotating equipment. No external connections are needed. No vents and breathers are needed. In fact, the frame can now be completely sealed from contact with the outside environment.

The operation is extremely simple and effective. The TurboMister vanes collect a small amount of oil as they pass through the oil sump. The rotational effect of the vanes and the unique curvature of the vanes then breaks up the oil into fine droplets, which are directed toward the bearings. Oil is also directed throughout the internals of the frame itself, minimizing any oxidation and rust formation that may eventually fall into the oil.

Details:

The TurboMister system includes an oil reservoir, containing approximately 12 ounces, or more than 1/2 a quart of additional reserve oil capacity. The rotational action of the TurboMister continuously "pumps" a small amount of oil out to the external reservoir where it gains additional cooling. The oil settles and passes through an internal filter which removes any contaminants that may be carried by the oil. Through the settling action, any moisture that may have accumulated in the oil condenses and is collected at the bottom of the reservoir and not allowed to reenter the bearing frame.

For the first time, an extremely reliable and simple system creates the best environment possible for pump bearings: Efficient lubrication. Lowest possible operating temperatures. Continuous filtration. Moisture removal. Large capacity reservoir with additional cooling. And, it's extremely simple to install.

There are several benefits to installing the Environamics TurboMister. The bearings will run considerably cooler allowing them to last longer. The oil itself, whether synthetic or hydrocarbon oil will run cooler and therefore last much longer before oxidizing, carbonizing and needing replacement. You can easily check the condition of the oil by removing the cover to the reservoir. The oil will be continuously cleaned as it passes through the filter. Therefore, contaminants that can shorten bearing life are continuously removed. Any moisture that may be contained in the oil will settle in the external reservoir where it can be drained off.

Installation:

The TurboMisterTM is quite simple to install, even on an existing pump.

(1) The rotating oil mist generator is furnished with a split collar so that it can be mounted to an existing shaft without removing the existing bearings. The collar is adjustable to fit a wide range of shaft diameters with one standard kit. The vane diameter is adjustable to suit virtually any bearing style or size.

(2) Remove the existing Sight Glass or Constant Level Oiler from the side of the bearing frame. The reservoir that is furnished with the TurboMister kit simply installs into this same port on the side of the bearing frame. The reservoir automatically adjusts the oil level downward so that the bearings are no longer flooded and not plowing through the oil.

(3) Connect the return line from the external reservoir to the oil drain port on the bottom of the bearing frame to complete the circuit.

(4) The TurboMisterTM does the rest.

Advantages:

Allows the bearings to operate as much as 50-60oF cooler by eliminating the viscous drag and plowing effect created by submerged bearings.
Reduces power consumption slightly by reducing viscous drag that was converted to non-productive heat.
Adds reserve oil capacity (in most cases doubles) to the pump.
Continuously filters the oil as it circulates.
Continuously removes water content from the oil.
Adds cooling capacity to the system, both by the external reservoir and by utilizing the entire internal surface of the bearing frame as a heat sink.
Continuously coats the internals of the bearing frame with oil to minimize any oxidation of iron and steel parts.
Because bearing and oil operating temperatures are significantly lower, condensate formation is minimized due to lower differential temperatures.
The system allows the use of a "closed frame" without vents or breathers, which are a prime source for moisture infiltration.
When combined with bearing isolators (labyrinth oil seals) which are very effective at keeping oil in, and keeping contaminants out, at the shaft level ... the TurboMister makes a significant contribution to any plant program aimed at productivity and cost reduction.

Comparison of major features and adavntages of the Environamics TurboMisterTM vs. Typical Flood Oil Lubrication

Feature
Environamics
TurboMister
Typical Flood Oil
System
Bearing operating temperature. 50-70 F cooler than flood oil. Commonly operate 160-180 F at 3600 rpm.
Longer bearing life due to lower operating temperatures. Increase bearing life 2000 hrs L10 for every 10 F temperature reduction. Optimum bearing life is virtually impossible.
Power consumption savings. Greatly reduce viscous drag. Eliminate churning. Added power is consumed and converted to detrimental heat.
Added reserve oil capacity. Adds more than 1/2 quart additional oil capacity. Many pump frames have less than one quart normal capacity.
Oil filtration. Continuously filters contaminants from the oil. Contaminants remain in bearing frame and can more easily find its way into bearings, especially with "floating" debris.
Moisture removal. Water content trapped and removed. Water content remains and continues to build up until oil is changed.
Moisture generation. Lower operating temperatures result in less air expansion, less humid air infiltration, and less condensate formation. Just the opposite occurs with higher operating temperatures.
Moisture infiltration points. Allow the use of a "closed frame" without vents and breathers. Use bearing isolators for ultimate protection. Vents and breathers are prime locations for moisture infiltration. A large percentage of the existing pump population does not use bearing isolators.
Cooling capacity. Adds two new sources of oil cooling. Full internal surface of bearing frame and an external reservoir. All heat dissipation must occur through the bottom oil sump.
Metal parts oxidation. Oil mist provides a continuous coating of oil on all frame internals. Moisture may attack "dead spots" in frame and cause rusting.

 

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Copyright © 1999 Environamics Corporation
Last modified: February 2006