Download Centrifugal Fan Autocad Drawing

• Dust Collector Cad Drawing

Household electric 'box' fan with a propeller style bladeA fan is a used to create flow within a, typically a such as.A fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it is contained within some form of housing or case. This may direct the airflow or increase safety by preventing objects from contacting the fan blades. Most fans are powered by motors, but other sources of power may be used, including motors and and.Fans produce air flows with high volume and low pressure, as opposed to which produce high pressures at a comparatively low volume.

A fan blade will often rotate when exposed to an air stream, and devices that take advantage of this, such as and, often have designs similar to that of a fan. For more details on this topic, see.Typical applications include, vehicle and machinery cooling systems, personal comfort (e.g., an electric table fan), ventilation, fume extraction, (e.g., separating chaff of grains), removing dust (e.g. In a ), drying (usually in combination with heat) and to provide draft for a. It is also common to use electric fans as, by attaching sheets to the protective housing.

This causes the fragrance to be carried into the surrounding air.In addition to their utilitarian function, vintage or antique fans, and in particular electric fans manufactured from the late 19th century through the 1950s, have become a recognized category, and in the U.S.A. An active collector club, the Antique Fan Collectors Association, supports the hobby. For a Fan Moved by Mechanism, 27 November 1830The in the late 19th century introduced belt-driven fans powered by factory. Attaching wooden or metal blades to shafts overhead that were used to drive the machinery, the first industrial fans were developed.

One of the first workable mechanical fans was built by in 1832. He called his invention, a kind of a centrifugal fan, an 'air pump.'

Dust Collector Cad Drawing

Centrifugal fans were successfully tested inside coal mines and factories in 1832–1834. When and introduced electrical power in the late 19th and early 20th centuries for the public, the personal electrical fan was introduced. Between the years 1882 and 1886, New Orleans resident invented the first electric fan. It was commercially marketed by the American firm Crocker & Curtis electric motor company.

In 1882, introduced the electric ceiling fan. Heat-convection fans fueled by alcohol, oil, or kerosene were common around the turn of the 20th century.The first American fans were made from around the late 1890s to the early 1920s, when domestic electric fans were first sold in America. They had blades, many of them also had brass cages, and though they were built very well internally, they were far from finger safe, as the cage openings were often so big that one could put an entire hand or arm through it.

Many children had hands and fingers severely injured by those fans. 75 hp air supply fanIn the 1920s, industrial advances allowed steel to be mass produced in different shapes, bringing fan prices down and allowing more homeowners to afford them.

In the 1930s, the first art deco fan (the 'swan fan') was designed. In the 1950s, fans were manufactured in colors that were bright and eye catching. Central in the 1960s caused many companies to discontinue production of fans. In the 1970s, Victorian-style ceiling fans became popular.In 1998, Walter K. Boyd invented the HVLS (high volume low speed) ceiling fan. A lifelong inventor, Boyd was charged with developing a system to cool dairy cattle.

Dairy cattle, when overheated, decrease milk production. Using the laws of physics and airflow, Boyd developed a fan that incorporated 10 aluminum blades and was 8-feet in diameter.

Unlike traditional ceiling fans that move quickly, this large fan moved slowly. Due to its diameter, the fan moved a large column of air down and out 360 degrees and continuously mixed fresh air with the stale air inside the barn. It also cooled the inside of the barn without causing the dairy cattle undue stress or kicking up dust.After much testing, Boyd discovered HVLS fan technology to be energy efficient as it cost less to run one HVLS fan than it did to run 50 small high-speed fans. Due to the skyrocketing costs of energy, HVLS commercial ceiling fans are used today to supplement HVAC systems in industrial and commercial settings, including warehouses, manufacturing facilities and malls, as HVLS fans help lower heating and cooling costs.In the 20th century, fans have become utilitarian. During the 2000s, fan aesthetics have become a concern to fan buyers. The fan is part of everyday life in the, and (among other places). The basic design of electric air fans have not changed significantly since their beginning in 1890 to the present.

Electric fans have been largely replaced by air conditioners in offices, but they are still a common household appliance. Types of fans. A typical household window fanMechanical revolving blade fans are made in a wide range of designs. In a home you can find fans that can be put on the floor or a table, or hung from the ceiling, or are built into a, wall, roof, chimney, etc. They can be found in electronic systems such as where they cool the circuits inside, and in appliances such as hair dryers and space heaters. They are also used for moving air in air-conditioning systems, and in automotive engines, where they are driven by belts or by direct motor. Fans used for comfort create a, but do not lower temperatures directly.

Fans used to cool electrical equipment or in engines or other machines do cool the equipment directly by forcing hot air into the cooler environment outside of the machine.There are three main types of fans used for moving air, axial, centrifugal (also called radial) and cross flow (also called tangential). Axial fans. An axial box fan for cooling electrical equipmentThe axial-flow fans have blades that force air to move to the shaft about which the blades rotate. Axial fans blow air along the axis of the fan, linearly, hence their name.

This type of fan is used in a wide variety of applications, ranging from small cooling fans for electronics to the giant fans used in. Axial flow fans are applied for air conditioning and industrial process applications.

Standard axial flow fans have diameters from 300-400 mm or 1800 to 2000 mm and work under pressures up to 800 Pa.Examples of axial fans are. Table fan: Basic elements of a typical table fan include the fan blade, base, armature and lead, motor, blade, motor housing, gearbox, and oscillator shaft. The oscillator is a mechanism that moves the fan from side to side. The axle comes out on both ends of the motor, one end of the axle is attached to the blade and the other is attached to the oscillator gearbox. The motor case joins to the gearbox to contain the rotor and stator.

The oscillator shaft combines to the weighted base and the gearbox. A motor housing covers the oscillator mechanism. The blade guard joins to the motor case for safety. A is an example of an axial fan.: A fan suspended from the ceiling of a room is a ceiling fan. Ceiling fans can be found in both residential and industrial/commercial settings.

In, a mechanical fan provides and prevents the engine from overheating by blowing or sucking air through a -filled. It can be driven with a off the 's or an electric fan switched on or off by a.: A variable-pitch fan is used where precise control of static pressure within supply ducts is required. The blades are arranged to rotate upon a control-pitch hub. The fan wheel will spin at a constant speed. As the hub moves toward the rotor, the blades increase their angle of attack and an increase in flow results. Centrifugal fan. Typical centrifugal fanOften called a 'squirrel cage' (because of its similarity in appearance to for pet rodents) or 'scroll fan', the centrifugal fan has a moving component (called an ) that consists of a central shaft about which a set of blades, or ribs, are positioned.

Centrifugal fans blow air at right angles to the intake of the fan, and spin the air outwards to the outlet (by deflection and ). The impeller rotates, causing air to enter the fan near the shaft and move from the shaft to the opening in the scroll-shaped fan casing. A centrifugal fan produces more pressure for a given air volume, and is used where this is desirable such as in, air mattress inflators, and various industrial purposes. They are typically noisier than comparable axial fans.

Crossflow fan. Crossflow fanThe crossflow or tangential fan, sometimes known as a tubular fan was patented in 1893 by Mortier, and is used extensively in the industry.

The fan is usually long in relation to the diameter, so the flow approximately remains two-dimensional away from the ends. The CFF uses an impeller with forward curved blades, placed in a housing consisting of a rear wall and vortex wall. Unlike radial machines, the main flow moves transversely across the impeller, passing the blading twice.The flow within a crossflow fan may be broken up into three distinct regions: a vortex region near the fan discharge, called an eccentric vortex, the through-flow region, and a paddling region directly opposite. Both the vortex and paddling regions are dissipative, and as a result, only a portion of the impeller imparts usable work on the flow. The crossflow fan, or transverse fan, is thus a two-stage partial admission machine. The popularity of the crossflow fan in the HVAC industry comes from its compactness, shape, quiet operation, and ability to provide high pressure coefficient. Effectively a rectangular fan in terms of inlet and outlet geometry, the diameter readily scales to fit the available space, and the length is adjustable to meet flow rate requirements for the particular application.Much of the early work focused on developing the crossflow fan for both high and low-flow-rate conditions, and resulted in numerous patents.

Key contributions were made by Coester, Ilberg and Sadeh, Porter and Markland, and Eck. One interesting phenomenon particular to the crossflow fan is that, as the blades rotate, the local air incidence angle changes. The result is that in certain positions the blades act as compressors (pressure increase), while at other azimuthal locations the blades act as (pressure decrease).

Uncommon Fan Types Bellows. Household electric 'box' fan with a propeller style bladeA fan is a used to create flow within a, typically a such as.A fan consists of a rotating arrangement of vanes or blades which act on the air. Usually, it is contained within some form of housing or case.

This may direct the airflow or increase safety by preventing objects from contacting the fan blades. Most fans are powered by motors, but other sources of power may be used, including motors and and.Fans produce air flows with high volume and low pressure, as opposed to which produce high pressures at a comparatively low volume. A fan blade will often rotate when exposed to an air stream, and devices that take advantage of this, such as and, often have designs similar to that of a fan.

For more details on this topic, see.Typical applications include, vehicle and machinery cooling systems, personal comfort (e.g., an electric table fan), ventilation, fume extraction, (e.g., separating chaff of grains), removing dust (e.g. In a ), drying (usually in combination with heat) and to provide draft for a. It is also common to use electric fans as, by attaching sheets to the protective housing. This causes the fragrance to be carried into the surrounding air.In addition to their utilitarian function, vintage or antique fans, and in particular electric fans manufactured from the late 19th century through the 1950s, have become a recognized category, and in the U.S.A. An active collector club, the Antique Fan Collectors Association, supports the hobby.

For a Fan Moved by Mechanism, 27 November 1830The in the late 19th century introduced belt-driven fans powered by factory. Attaching wooden or metal blades to shafts overhead that were used to drive the machinery, the first industrial fans were developed. One of the first workable mechanical fans was built by in 1832.

He called his invention, a kind of a centrifugal fan, an 'air pump.' Centrifugal fans were successfully tested inside coal mines and factories in 1832–1834.

When and introduced electrical power in the late 19th and early 20th centuries for the public, the personal electrical fan was introduced. Between the years 1882 and 1886, New Orleans resident invented the first electric fan.

It was commercially marketed by the American firm Crocker & Curtis electric motor company. In 1882, introduced the electric ceiling fan.

Heat-convection fans fueled by alcohol, oil, or kerosene were common around the turn of the 20th century.The first American fans were made from around the late 1890s to the early 1920s, when domestic electric fans were first sold in America. They had blades, many of them also had brass cages, and though they were built very well internally, they were far from finger safe, as the cage openings were often so big that one could put an entire hand or arm through it. Many children had hands and fingers severely injured by those fans. 75 hp air supply fanIn the 1920s, industrial advances allowed steel to be mass produced in different shapes, bringing fan prices down and allowing more homeowners to afford them. In the 1930s, the first art deco fan (the 'swan fan') was designed. In the 1950s, fans were manufactured in colors that were bright and eye catching.

Central in the 1960s caused many companies to discontinue production of fans. In the 1970s, Victorian-style ceiling fans became popular.In 1998, Walter K.

Boyd invented the HVLS (high volume low speed) ceiling fan. A lifelong inventor, Boyd was charged with developing a system to cool dairy cattle.

Dairy cattle, when overheated, decrease milk production. Using the laws of physics and airflow, Boyd developed a fan that incorporated 10 aluminum blades and was 8-feet in diameter. Unlike traditional ceiling fans that move quickly, this large fan moved slowly. Due to its diameter, the fan moved a large column of air down and out 360 degrees and continuously mixed fresh air with the stale air inside the barn. It also cooled the inside of the barn without causing the dairy cattle undue stress or kicking up dust.After much testing, Boyd discovered HVLS fan technology to be energy efficient as it cost less to run one HVLS fan than it did to run 50 small high-speed fans. Due to the skyrocketing costs of energy, HVLS commercial ceiling fans are used today to supplement HVAC systems in industrial and commercial settings, including warehouses, manufacturing facilities and malls, as HVLS fans help lower heating and cooling costs.In the 20th century, fans have become utilitarian.

During the 2000s, fan aesthetics have become a concern to fan buyers. The fan is part of everyday life in the, and (among other places). The basic design of electric air fans have not changed significantly since their beginning in 1890 to the present.

Electric fans have been largely replaced by air conditioners in offices, but they are still a common household appliance. Types of fans. A typical household window fanMechanical revolving blade fans are made in a wide range of designs. In a home you can find fans that can be put on the floor or a table, or hung from the ceiling, or are built into a, wall, roof, chimney, etc. They can be found in electronic systems such as where they cool the circuits inside, and in appliances such as hair dryers and space heaters. They are also used for moving air in air-conditioning systems, and in automotive engines, where they are driven by belts or by direct motor. Fans used for comfort create a, but do not lower temperatures directly.

Fans used to cool electrical equipment or in engines or other machines do cool the equipment directly by forcing hot air into the cooler environment outside of the machine.There are three main types of fans used for moving air, axial, centrifugal (also called radial) and cross flow (also called tangential). Axial fans. An axial box fan for cooling electrical equipmentThe axial-flow fans have blades that force air to move to the shaft about which the blades rotate. Axial fans blow air along the axis of the fan, linearly, hence their name. This type of fan is used in a wide variety of applications, ranging from small cooling fans for electronics to the giant fans used in. Axial flow fans are applied for air conditioning and industrial process applications.

Standard axial flow fans have diameters from 300-400 mm or 1800 to 2000 mm and work under pressures up to 800 Pa.Examples of axial fans are. Table fan: Basic elements of a typical table fan include the fan blade, base, armature and lead, motor, blade, motor housing, gearbox, and oscillator shaft. The oscillator is a mechanism that moves the fan from side to side. The axle comes out on both ends of the motor, one end of the axle is attached to the blade and the other is attached to the oscillator gearbox. The motor case joins to the gearbox to contain the rotor and stator. The oscillator shaft combines to the weighted base and the gearbox.

A motor housing covers the oscillator mechanism. The blade guard joins to the motor case for safety. A is an example of an axial fan.: A fan suspended from the ceiling of a room is a ceiling fan.

Ceiling fans can be found in both residential and industrial/commercial settings. In, a mechanical fan provides and prevents the engine from overheating by blowing or sucking air through a -filled. It can be driven with a off the 's or an electric fan switched on or off by a.: A variable-pitch fan is used where precise control of static pressure within supply ducts is required. The blades are arranged to rotate upon a control-pitch hub.

The fan wheel will spin at a constant speed. As the hub moves toward the rotor, the blades increase their angle of attack and an increase in flow results. Centrifugal fan.

Typical centrifugal fanOften called a 'squirrel cage' (because of its similarity in appearance to for pet rodents) or 'scroll fan', the centrifugal fan has a moving component (called an ) that consists of a central shaft about which a set of blades, or ribs, are positioned. Centrifugal fans blow air at right angles to the intake of the fan, and spin the air outwards to the outlet (by deflection and ). The impeller rotates, causing air to enter the fan near the shaft and move from the shaft to the opening in the scroll-shaped fan casing. A centrifugal fan produces more pressure for a given air volume, and is used where this is desirable such as in, air mattress inflators, and various industrial purposes. They are typically noisier than comparable axial fans.

Crossflow fan. Crossflow fanThe crossflow or tangential fan, sometimes known as a tubular fan was patented in 1893 by Mortier, and is used extensively in the industry. The fan is usually long in relation to the diameter, so the flow approximately remains two-dimensional away from the ends. The CFF uses an impeller with forward curved blades, placed in a housing consisting of a rear wall and vortex wall. Unlike radial machines, the main flow moves transversely across the impeller, passing the blading twice.The flow within a crossflow fan may be broken up into three distinct regions: a vortex region near the fan discharge, called an eccentric vortex, the through-flow region, and a paddling region directly opposite. Both the vortex and paddling regions are dissipative, and as a result, only a portion of the impeller imparts usable work on the flow.

The crossflow fan, or transverse fan, is thus a two-stage partial admission machine. The popularity of the crossflow fan in the HVAC industry comes from its compactness, shape, quiet operation, and ability to provide high pressure coefficient. Effectively a rectangular fan in terms of inlet and outlet geometry, the diameter readily scales to fit the available space, and the length is adjustable to meet flow rate requirements for the particular application.Much of the early work focused on developing the crossflow fan for both high and low-flow-rate conditions, and resulted in numerous patents. Key contributions were made by Coester, Ilberg and Sadeh, Porter and Markland, and Eck. One interesting phenomenon particular to the crossflow fan is that, as the blades rotate, the local air incidence angle changes. The result is that in certain positions the blades act as compressors (pressure increase), while at other azimuthal locations the blades act as (pressure decrease).

Uncommon Fan Types Bellows.

. Air Volume: 400 - 20000 cfm. Maximum SP: 2.75' wg.

BIMobject Category:HVAC - Air ConditioningUniclass 1.4 Code:L7533Uniclass 1.4 Description:HVAC fans for ductlinesUniclass 2.0 Code:SS-65-40-95-52Uniclass 2.0 Description:Mechanical Supply Ventilation SystemsUniclass 2015 Code:Ss65403351Uniclass 2015 Description:Mechanical supply ventilation systemsCSI MasterFormat 2014 Code:23 00 00CSI MasterFormat 2014 Title:Heating, Ventilating, and Air Conditioning (HVAC)OmniClass Number:23-33 00 00OmniClass Title:HVAC Specific Products and EquipmentCSI UniFormat II Code:D30CSI UniFormat II Title:HVAC.