News- Zhejiang Zifeng Fan Co., Ltd.

What are the small knowledge and classification uses of centrifugal fan?

China large centrifugal fan is a machine for compressing and conveying gas. From an energy point of view, it is a machine that converts the mechanical energy of the prime mover into gas energy. Classification and use of fans Classified according to the principle of action: Turbo Blower - A blower that compresses conveyed gas by means of rotating blades. Volume Blower - Compression and delivery of gas machinery by changing the volume of the gas. Classified by airflow direction: China exhaust cent...

2023-01-12
What is the difference between an exhaust fan and a central fan?

An exhaust fan is a type of ventilation fan that is used to remove excess heat, moisture, and other pollutants from a room or building. Exhaust fans are typically installed in the ceiling or a wall and are equipped with a duct that vents the air outside. They are commonly used in bathrooms, kitchens, and other areas where moisture and pollutants can build up. Exhaust fans can help to improve indoor air quality, reduce the risk of mold and mildew, and keep a room cool and comfortable. They are al...

2023-01-05
What drives the ventilation fan?

The ventilation fan uses the motor to drive the blades to rotate to realize the exchange of indoor and outdoor air. However, the exhaust fan can only complete partial exhaust, and cannot allow a large amount of outdoor air to enter the room, so it cannot achieve real air circulation. And because the exhaust fan operates in one direction, it can only exhaust indoor air. In addition, the length of the pipe will weaken the exhaust force during operation, so it is only suitable for installation in t...

2022-12-21
What are the total pressure, static pressure and dynamic pressure of the centrifugal fan?

The total or total pressure is the sum of the dynamic and static pressures. Dynamic pressure refers to the kinetic energy obtained by the gas flowing through the blades. The static pressure of the China induced draft fan is different from the static pressure usually mentioned. The static pressure here is due to the pressure difference between the impeller and the fluid before the back of the blade. related to the speed of the blade. It is also related to the geometric dimensions of the blade inl...

2022-12-15
What are the performance indicators of the cooling fan?

1： Rotating speed is one of the fundamental determinants of various performance indicators of the fan. The unit of fan rotating speed is RPM. Chinese manufacturers generally use r/min to express it. In fact, the meaning of expression is consistent, which refers to the number of revolutions per minute of the fan blade. Fan speed is related to the number of fan blades, the number of coil turns in the motor and the working voltage, but not necessarily to the quality of the fan. 2： Air volume is the...

2022-12-08
How to divide the noise level and pressure level of centrifugal fan?

1. Noise sound pressure level of central fan In terms of relevant factors, the noise pressure level of centrifugal fan mainly includes the structure of centrifugal fan and the operating state of centrifugal fan. In addition, its running state is determined by the rated power of the motor and the exhaust air volume. Therefore, the sound pressure level of centrifugal fans with different specifications or different series of products is definitely different. In addition, even if the same model and ...

2022-12-01
What are the Advantages of a High Suction Exhaust Fan?

Whether you have a garage or a basement, a high suction exhaust fan is a must have for your home. The motor used is very efficient, and has multiple blades. It's oil and moisture resistant. It also features an auto reset function. Multiple blades Depending on the application, you may want to consider using multiple blades on a high suction exhaust fan. This is particularly true if you are looking to operate your fan in a high resistance environment. There are several different types of fans that...

2022-11-24
What are the advantages of high suction exhaust fans?

If you need to keep dust and debris out of your room, a high suction exhaust fan is the perfect choice for you. These powerful machines come with a variety of features, including an automatic dust and debris guard. They should be lightweight and easy to install. The motor should be made of 100% copper, which means that it will provide powerful performance. They should also have an automatic back shutter, which helps keep unwanted objects out of the fan. The static pressure in a fan system is usu...

2022-11-17
What are the outstanding features Ventilation Fans for the Home?

Ventilation fans are a great way to keep a room at a comfortable temperature. While they are not as effective at cooling rooms as air conditioners, they can help control the temperature of a room. Ventilation fans typically operate on dedicated switches and are connected to the home's electrical system. However, it is important to remember that they cannot be used as a substitute for an air conditioning unit. While the industrial sector dominated the global ventilation fan market, it is the resi...

2022-11-09

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