What are the components of a fan? What are the structural components of the fan?

Our common fans are centrifugal fans.

and cross-flow fans.

1. Centrifugal fan: The centrifugal fan is mainly composed of the fan shell, centrifugal rotor, diversion cone, motor, transmission box and base.

1. The shell of the centrifugal fan adopts Archimedes spiral.

There are many structures. Sheet metal is used.

It is manufactured by welding and polymer plate bonding.

2. The centrifugal rotor is composed of a front disc, a rear disc, and a fan blade.

3. The guide cone is installed at the shaft core of the rear disc of the rotor.

4. The motor is the power source of the fan.

5. The gearbox transmits the motor power to the centrifugal rotor.

6. The base supports the shell of the centrifugal fan, the transmission box and the motor.

Centrifugal fan. 2. Through-flow fan: The cross-flow fan is the shaft core of the motor, fan rotor and fan blade installed in the fan shell, such as common fans and so on.

Cross-flow fan. I hope it can help you, welcome to like, and follow.

Fans are general-purpose equipment, and fans are mainly divided into two categories: centrifugal fans and axial fans. What components do the fans consist of:

Fan body part and drive part centrifugal fan: the main components are - air inlet, impeller, casing, base, spindle, bearing, (coupling), pulley, belt, motor as shown in the figure: belt fan structure diagram - belt on-site fan on-site fan as shown in the figure

Direct connection (coupling).

Fan structure diagram - direct connection to the on-site fan - coupling on-site fan - direct connection.

Axial fan: The main components are - hair dryer, air inlet, base, impeller, pulley, belt, motor axial fan structure diagram Axial fan structure diagram On-site fan.

With a certain understanding of the structure of fan equipment, we can encounter fan problems in production and life: fan vibration, noise, and performance parameters, we can also know that the problem is in the part of the fan, and calmly deal with and solve the problems encountered.

Wind turbines have a history of more than 100 years.

For imported commercial fan brands: American Greenhan fans, EBM fans.

For imported industrial fan brands: Howden Hua fan, American Twin Cities fan, Chicago fan, New York fan.

Be believing! The power of the brand comes from the precipitation of technology!

Mercedes-Benz, BMW, Audi.

It interprets the power of the brand, which comes from the precipitation of technology!

Fans are mainly divided into two categories: centrifugal fans and axial fans.

What components are the fans composed of: the fan body part and the drive part.

Centrifugal fan: the main components are - air inlet, impeller, casing, base, spindle, bearing, (coupling), pulley, belt, motor.

The main structural components of the fan: impeller, casing, air inlet, bracket, motor, pulley, coupling, silencer, bearing, etc.

The impeller is the most important and core component of the wind turbine. The impeller is made of riveted or welded disc discs, covers and blades, and the parts that make up the wind turbine impeller are all made of high-quality steel. The main function of the impeller is to increase the pressure and speed of the gas after passing through the impeller.

The rotor assembly is also the main component of the fan, and its form is cantilever and double-supported. It is composed of impeller, spindle, exhaust wheel, sealing sleeve, balance plate, coupling and other components. Impellers and shafts often have an interference fit or transition fit.

If the heating method is used, attention should be paid to the heating temperature, which should generally be slightly lower than the lower limit of the annealing temperature of the assembly material to prevent the loss of the effect of assembly work hardening.

Fan bearings are the key to the operation and service life of the fan, and the fan manufacturer uses high-quality stainless steel or corrosion-resistant stainless steel to make the spindle, which not only supports all the rotating parts of the fan, but also transmits torque. When it comes to torque transmission, the coupling of the wind turbine is an important part used to connect the shaft and transmit the rotational torque, and can also be used as a safety device.

The main components of the fan are: air collection outlets, nozzles, hair dryers, and various spinning parts.

1. The structure of the fan: it is composed of impeller, casing, air inlet, bracket, motor, pulley, coupling, silencer, transmission parts and other chain excite components;

2. The fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas, which is a driven fluid machinery;

3. Fan is China's customary abbreviation for gas compression and gas transmission machinery, and the fan commonly referred to includes fans, blowers, and wind turbines;

4. Fans are widely used in the ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and the ventilation and induced air of boilers and industrial furnaces;

5. Cooling and ventilation in air conditioning equipment and household appliances;

6. Drying and selection of grains, wind tunnel wind source and inflation and propulsion of the pre-gas call shed cushion ship, etc.

The fan control system is divided from the control structure, and the electronic control system can be divided into the following four parts.

1) Grid-level control part: mainly including total active and reactive power control, remote monitoring, etc.

2) The control part of the whole machine: mainly includes maximum power tracking control, speed control, automatic yaw control, etc.

3) Converter part: mainly including grid-connected control of doubly-fed generators, active and reactive power decoupling control, subsynchronous and supersynchronous operation control, etc.

4) Pitch control part: It is divided into two types: unified pitch control and independent pitch control, and most of the large wind turbines adopt independent pitch control. (Reducing the impact of turbulence on wind turbines, balancing the stress conditions of each blade and considering the redundancy of system safety assurance).

Wind turbines: including wind turbines and generators.

Composition of wind turbines

Wind power generators are generally composed of wind turbines, power generators (including devices), steering DAO devices (in the tail), towers, speed limiting safety mechanisms and energy storage capacity devices.

A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. The working principle of the wind turbine is relatively simple, the wind wheel rotates under the action of the wind, it converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft, and the generator spins electricity under the drive of the wind wheel shaft. Broadly speaking, wind energy is also solar energy, so it can also be said that wind turbines are a kind of thermal energy utilization generators that use the sun as the heat source and the atmosphere as the working medium.

(1) Direct drive.

BAI wind turbine: It is mainly composed of tower (supporting DU tower), nacelle assembly, ZHI generator, DAO impeller assembly, wind measurement system, electronic control system and lightning protection system. The generator is located between the nacelle and the hub.

The generator and gear transmission system are eliminated in the engine room of the direct-drive wind turbine, and the generator is directly externalized to the connection with the hub.

2) Doubly-fed wind turbine: mainly composed of tower, nacelle and impeller. The engine room integrates the generator system, gear transmission system, braking system, yaw system, cooling system, etc.

Host blades.

Controller battery.

Inverter tower rod.

1. The classification of fans can be divided into centrifugal type, axial flow type, oblique flow type (mixed flow type) and cross flow type according to the direction of gas flow.

2. According to the flow direction of the air flow into the impeller, the fan is divided into: axial fan, centrifugal fan and oblique flow (mixed-flow) fan.

3. Fans are divided into press-in local fans (hereinafter referred to as press-in fans) and flame-proof motors placed outside or in the runners, and flame-proof motors are placed in explosion-proof sealing cavities (hereinafter referred to as extractable fans).

Fourth, the fan can also be divided into single-stage, two-stage or multi-stage pressurized fan according to the form of pressurization. For example, 4-72 is a single-stage pressurized fan, and a high-end fan is a multi-stage pressurized fan.

5. Fans can be divided into negative pressure fans, low-pressure fans, medium-pressure fans, and high-pressure fans according to pressure.

Fan classification: 1. According to the classification of the material used, it can be divided into: iron shell fan (ordinary fan), FRP fan, plastic fan, aluminum fan, stainless steel fan and so on.

2. According to the direction of gas flow, it can be divided into: centrifugal type, axial flow type, oblique flow type (mixed flow type) and cross flow type. 3. According to the flow direction after the air flow enters the impeller, it is divided into:

Axial fans, centrifugal fans and diagonal flow (mixed-flow) fans. 4. According to the use, it is divided into press-in local fan (hereinafter referred to as press-in fan) and flameproof motor placed outside or in the flow channel, and the flameproof motor is placed in the explosion-proof sealing cavity (hereinafter referred to as the extraction fan). 5. According to the form of pressurization, it can also be divided into single-stage, double-stage or multi-stage pressurized fans.

For example, 4-72 is a single-stage pressurized fan, and a high-end fan is a multi-stage pressurized fan. 6. According to the use, it can be divided into: axial fan, mixed-flow fan, roof fan, air conditioning fan, etc.

7. According to the pressure, it can be divided into negative pressure fan, low pressure fan, medium pressure fan and high pressure fan. 8. According to the outlet pressure (boost), it is divided into: fan (10,000 Pa), blower (10,000 Pa), compressor (350,000 Pa).

9. Classification according to the type of layer: (1) volumetric type: reciprocating type and rotary type (2) turbine type:

Centrifugal, axial, mixed-flow and cross-flow, jet. (3) According to the different materials used, it can be divided into; Iron shell fan (ordinary fan), FRP fan, plastic fan, aluminum fan, stainless steel fan, etc. (4) According to the direction of gas flow, it can be divided into:

Centrifugal, axial, oblique flow (mixed-flow) and cross-flow types. (5) According to the flow direction after the air flow enters the impeller, it can be divided into: axial flow fan, centrifugal fan and oblique flow (mixed-flow) fan.

6) According to the use, it can be divided into: press-in local fan and flameproof motor are placed outside or in the flow channel, and the flameproof motor is placed in the explosion-proof sealing cavity. (7) According to the form of pressurization, it can also be divided into:

Single-stage, two-stage or multi-stage pressurized fans.

Xingtai Runlian Technology Development **** is a large-scale enterprise dedicated to instrumentation equipment, the company's cross-flow fans are mainly used for dry-type transformer capacity increase, and electronic equipment, power distribution cabinets, high and low voltage switchgears and other forced air supply. The heat dissipation of this fan can increase the capacity by 40 to 50% operation, greatly improve the carrying capacity of the transformer, and extend the service life of the dry-type transformer.

The commonly used types of centrifugal fans are as follows: 1. Industrial centrifugal fan 2. Dust removal environmental protection fan 3. Anti-corrosion explosion-proof fan 4. For more and more detailed information on the induced draft fan of high-temperature boiler, you can actually find Shanghai Jingyuan Technology. Shanghai Jingyuan Science & Technology Co., Ltd. is mainly engaged in fans, industrial fans, CEMS systems, VOC exhaust gas monitoring systems, process analysis instruments, process automation instruments, industrial automation, sensors, encoders, pump valves, hydraulic pneumatics, fluid control and refrigeration dryer filters and other equipment.

The company has provided engineering project design consulting, supply and other services for a large number of users in many industries.

Fans include categories such as ventilators, blowers, and compressors, but do not include positive displacement blowers and compressors. There are many types of fans, and the common division is based on the material of the fan, the gas flow direction of the fan, and the purpose of the fan.

Material classification of wind turbines.

Cast iron is commonly used in the material of fans, and ordinary fans belong to this type of iron-shell fans. Fans are also made of other materials, such as FRP fans, PVC fans, aluminum alloy fans and stainless steel fans, etc., which have good corrosion, anti-abrasion or high temperature resistance.

Classification of gas flow direction of the fan.

The gas flow direction of the fan refers to the direction of the gas flow when the fan is running, if the gas flow direction is the same as the shaft direction of the impeller, it is the axial fan, and if the gas is centrifugal movement centered on the shaft of the impeller, it is a centrifugal fan. In addition to these two, there are also diagonal flow fans and cross-flow fans.

Classification of the use of the fan.

Fans can also be divided into several types according to different uses, such as smoke exhaust fans, air conditioning fans, roof fans, etc. These fans are designed for special purposes, so they are different from ordinary fans in terms of shape, material, function, etc., for example, roof fans can be designed with two-way reversible air supply and exhaust.

Other classifications of wind turbines.

Fans can be divided into single-stage pressurized fans, two-stage pressurized fans and multi-stage pressurized fans according to the different pressurization times of the airflow, such as roots fans are typical multi-stage pressurized fans. According to the design structure and the installation position of the motor, the fan can also be divided into press-in fan and extraction fan.

Look at how it is classified, what you are referring to in the turbine fan, there are also mixed-flow fans, cross-flow fans, and the second question you want to ask is whether the transmission mode of the fan or what??? I'm in the sales of wind turbines.

According to the characteristics of axial fans, the following classifications are made: classified by material: steel fans, glass fiber reinforced plastic fans, plastic fans, PP fans, PVC fans, magnesium alloy fans, aluminum fans, stainless steel fans, etc.

Classified by use: explosion-proof fan, anti-corrosion fan, explosion-proof and anti-corrosion, special axial fan fan and other types. Classified according to the requirements of use:

Pipeline type, wall type, post type, fixed type, rainproof and dustproof type, mobile type, motor external type, etc. According to the installation method, it can be divided into: belt drive type, motor direct connection type.