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Here's the recent articles submitted by oleg tchetchel

Articles By oleg tchetchel

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Explosion Proof And Spark Resistant Fan   By: oleg tchetchel
Fans are often used to handle a variety of gases, dusts and materials other than clean air. Some of these gases and solid particles are combustible. When mixed at certain concentrations, ignition can result in an explosion. Even systems which are normally “safe” can become explosive under abnormal conditions. System designers must consider the safety hazard that each component of the system carries. This discussion presents some considerations that must be given to the fan.(read entire article)
View : 80 Times
Category : Health

Explosion Proof Spark Resistant Fan   By: oleg tchetchel
Industry areas such as chemical, pharmaceutical, and various industrial processes have explosive environments that require the equipment to be specially constructed to minimize the risk of gas or dust ignition. Fans are one of the items of industrial equipment that have potential to ignite either gas or dust from either sparks caused by contact of the fan wheel and housing, or because of fan motors with high temperatures, inadequate gas / dust ingress protection, or inadequate construction for prevent spark or flame propagation in to the surrounding atmosphere.(read entire article)
View : 76 Times
Category : Service

Fan Vibrations   By: oleg tchetchel
The fan manufacturers are ususally “vibration experts” and can set the tolerance for acceptable levels of vibration.(read entire article)
View : 114 Times
Category : Hardware/Software

Fans And Blowers Noise Level   By: oleg tchetchel
Fan blade pass frequency is a pure tone produced when the blades of the fan wheel (impeller) rotate past the housing cut-off sheet in centrifugal fans, or the turning vanes, in axial fans. The blade pass frequency is calculated by multiplying the number of blades times the rotating speed in revolutions per minute. If this frequency matches the natural frequency of the ductwork, it can excite the ductwork, which can cause it to resonate, thereby increasing the noise level. Because of this possible increase in sound, and because certain pure tones are irritating to people, the sound output of the blade pass frequency should be investigated when sound reduction is desired. The next factor to consider is the fan design. Generally a fan operating at peak mechanical efficiency will produce less noise, because high efficiencies result from minimal air turbulence within the fan.(read entire article)
View : 40 Times
Category : Business

Fans And Blowers Per Atex   By: oleg tchetchel
The ATEX Directive applies to all countries in the EU and the European Economic Area (EEA). ATEX (ATmosphères EXplosibles) is a conglomeration of European Union (EU) directives outlining equipment installed and operated in potentially explosive atmospheres. The ATEX directive coordinates various technical and legal conditions throughout Europe to ensure a high level of safety for the end-user by reducing the explosion risk through established design methods. Since July 1, 2003, equipment manufactured for operation in potentially explosive environments has been required to comply with the EU's ATEX Manufacturer's Directive (94/9/EC).(read entire article)
View : 68 Times
Category : Shopping/Product Reviews

Fans For Chemical Industry By Canadian Blower   By: oleg tchetchel
Canadian Blower petrochemical fans and blowers operate in conditions encompassing extreme pressure and temperature, and handle a wide range of gases containing aggressive and toxic components. Petrochemicals industry provides the widest range of challenges for rotating equipment. Demanding specifications and strict safety requirements must be met and above all is the need for dependable operation over long periods.(read entire article)
View : 48 Times
Category : Others

Fans For Pulp And Paper Industry   By: oleg tchetchel
Canada Blower Co. is a major supplier of fans and blowers for Pulp and Paper Industry.(read entire article)
View : 24 Times
Category : Service

Fans Performance Curves   By: oleg tchetchel
The fan curve presents fan performance. It is one of the most useful tools available during the fan selection process. While multi-rating tables are convenient (see page 12), performance curves offer additional information such as - how much reserve pressure head exists between the design pressure and the peak static pressure, the maximum power the fan might draw, and the efficiency of operation.(read entire article)
View : 60 Times
Category : Environment

Fiberglass Blowers   By: oleg tchetchel
FRP Pressure Blowers are designed for highly corrosive application to handle acid vapors, and organic and inorganic chemical fumes that are highly corrosive to metal at temperatures up to 250 F. Applications include scrubber systems, odor control systems in wastewater treatment plants, laboratory exhaust systems, metal finishing and chemical-process industries. Fiber-reinforced-plastic pressure blowers are made from chemical grade polyester or vinyl ester resins and reinforced with glass or fiber. Additional surface veil is available depending on the application. Capacity range of FRP Pressure Blowers is from 0 to 8,000 CFM and static pressure range is up to 40” WG.(read entire article)
View : 37 Times
Category : Business

Fiberglass Pressure Blower   By: oleg tchetchel
Potential applications for FRP fans include any process in which corrosive fumes must be captured, moved, cleaned, or vented. FRP fans are most often used in fume-scrubber systems where the scrubber itself may be constructed of FRP or an exotic alloy, but where FRP is the preferred fan material. Galvanizing and etching processes often have FRP exhaust hoods and ducts, and many of the fans used to convey fumes in such systems are also built of FRP. Waste water treatment plants and laboratory exhaust systems are other applications for which FRP fans are being used with increasing frequency.(read entire article)
View : 39 Times
Category : Business

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