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Anonymous users2024-02-10The first method: refer to the specification, according to your actual situation, select the wind speed within the applicable range, and divide the air volume by the wind speed to obtain the cross-sectional area of the air duct, so that you can choose the size of the air duct (of course, when the ceiling space is large enough, try to use the square pipe).
The second is the equal specific friction method, according to the pipe you choose, the air volume, and then the specific friction resistance is limited to between.
For example, when you choose a galvanized iron duct, the diameter of the new air duct with 4000 air volume is about: 450*400
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Anonymous users2024-02-09Select the wind speed within the applicable range, divide the air volume by the wind speed to obtain the cross-sectional area of the air duct, so that the size of the air duct can be selected.
Duct is a duct system used for air transport and distribution. There are two kinds of composite air ducts and inorganic air ducts. Ducts can be classified by cross-sectional shape and material.
Air duct productionStainless steel air duct production is to coat sealant (such as neutral glass glue) at the gaps such as bite seams, rivet seams, flange flanging, and four corners. Dust and oil should be removed from the surface before applying sealant. According to the cross-sectional shape, the air duct can be divided into circular air duct, rectangular air duct, flat round air duct and other kinds, among which the height size of the circular air duct with the least resistance is the largest, and the production is complex.
Therefore, the application is mainly rectangular duct. According to the material, the air duct can be divided into metal air duct, composite air duct, and polymer air duct.
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Anonymous users2024-02-08Summary. Dear We will be happy to answer your <>
According to what the teacher learned, in order to determine how much axial fan the wind energy of the centrifugal induced draft fan can be replaced, the following factors need to be considered: 1Fan power:
The power of the centrifugal induced draft fan is 11 kilowatts, and it is necessary to find an axial fan that can reach or approach this value. 2.Fan Efficiency:
Different types of fans have different efficiencies, and fans of the same power may have different air outputs. It was necessary to find an axial fan with the efficiency to meet the requirements. 3.
Fan size: Centrifugal induced draft fans and axial fans may be different in size, and it is important to ensure that the axial fans are sized to fit in the same space. To sum up, to determine how large an axial fan to use for centrifugal induced draft fan wind energy, it is necessary to consider factors such as power, efficiency and size, and choose an axial fan that can meet the requirements.
Specific choices need to be evaluated and compared on a case-by-case basis.
11 kilowatt centrifugal induced draft fan wind energy with how much axial fan.
Dear We will be happy to answer your <>
According to what the teacher learned, in order to determine how much axial fan the wind energy of the centrifugal induced draft fan can be replaced, the following factors need to be considered: 1Fan power car sensitive group closure rate:
The power of the centrifugal induced draft fan is 11 kilowatts, and it is necessary to find an axial fan that can reach or close to this value. 2.Fan Efficiency:
Different types of fans have different efficiencies, and fans of the same power may have different air outputs. It was necessary to find an axial fan with the efficiency to meet the requirements. 3.
Fan size: Centrifugal induced draft fans and axial fans may be different in size, and it is important to ensure that the axial fans are sized to fit in the same space. To sum up, to determine how large an axial fan to use for centrifugal induced draft fan wind energy, it is necessary to consider factors such as power, efficiency and size, and choose an axial fan that can meet the requirements.
Specific choices need to be evaluated and compared on a case-by-case basis.
In general, in order to replace a centrifugal or drained draft fan with a power of 11 kW, an axial fan with a grinding power close to or slightly higher than 11 kW may be required. At the same time, it is necessary to ensure that the efficiency of the axial fan can meet the requirements and that the size is suitable for installation in the same space.
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Anonymous users2024-02-07Hello, kilowatt 9-26 high-pressure centrifugal fan and 15 kilowatt 4-72 centrifugal fan, 15 kilowatt 4-72 centrifugal fan suction power 15 kilowatt 4-72 centrifugal fan Beizhou in the speed, is able to reach 830r min, kilowatt 9-26 high-pressure centrifugal fan double impeller air volume 320 cubic hours, single impeller air volume 530 cubic hours. There are no 15,000 liquid rolling silver tiles 4-72 centrifugal fans with large air volume. High-pressure fans are also known as vortex air pump blowing and suction dual-purpose fans, side flow vacuum fans, high-pressure vacuum fans, annular vacuum pumps, vortex vacuum fans, side chamber vacuum pumps, side chamber compressors, etc.
The special blade research invention of the fan has the characteristics of high pressure, large air volume, low noise and high temperature resistance. The high pressure and high suction power are due to the unique creation of the impeller. When the impeller rotates, the air in the two blades is rapidly moving to the outer edge direction due to centrifugal action, and the wind pressure is rapidly stacked and increased, forming a high pressure or high force, and its speed is increased.
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Anonymous users2024-02-06Hello dear, kilowatt 9-26 high-pressure centrifugal fan and 15 thousand Mengchun watt 4-72 centrifugal fan, kilowatt 9-26 high-pressure centrifugal fan with large suction, concise high-pressure fan blowing is achieved by pressure, which is also the kinetic energy of the unit volume gas of the fan outlet section; Therefore, the suction force is the kinetic energy flowing through the unit volume of gas in the section of the air inlet of the fan. I hope my answers can help you and have a great day.
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Anonymous users2024-02-05Fans are general-purpose equipment.
What is the corresponding air volume and wind pressure of the centrifugal fan?
If there is no power of the motor, there is shaft power.
The air volume can be from 10000-25000, and the wind pressure can be from 500-200pa.
The size of the air outlet is also different for different fan models of fans, so the air duct is not clear how big it is.
Generally, the air outlet is softly connected, and then the air duct is connected.
For the more rigorous selection of fans, we first know the size of the air volume and wind pressure, select the corresponding fan model, and find the size of the outlet.
Then it is more reasonable to know the air duct.
Three imported brands of fans: Greenhanck fans, American Shuangcheng fans, and Howden Hua fans.
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!
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Anonymous users2024-02-04What is the pipe speed you need?
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Anonymous users2024-02-03From the perspective of fan model and power, the air volume of the fan should be about 6000, and the full pressure should be about 1700
The friction resistance of the pipe per meter extension is calculated, and from the calculation results, the full pressure of the fan is 1700Pa friction resistance, which is obviously unreasonable for the 100mm diameter pipe.
Through calculation, the diameter of the pipeline is 300mm, and the wind speed of the pipeline is 1700pa, and the full pressure of the pipe resistance fan is 1700pa, which I think is more reasonable from the perspective of the main pipeline configuration.
But there is another problem: a total of 5 air suction outlets with a diameter of 75mm can not use 4-72 fans!
Axial fans and centrifugal fans are two different products in the fan category, and their main function is also to ventilate the air in the environment. >>>More
When the fan is working, the airflow enters the blade space from the fan axially, and then rotates with the impeller under the drive of the impeller; On the other hand, a fan that increases energy under the action of inertia, leaves the impeller along the radius direction, and relies on the centrifugal force generated to do work is called a centrifugal fan. Centrifugal fans are based on the principle of converting kinetic energy into potential energy, using a high-speed rotating impeller to accelerate the gas, then slow down and change the flow direction to convert kinetic energy into potential energy (pressure). In a single-stage centrifugal fan, the gas enters the impeller from the axial direction, changes to a radial direction as it flows through the impeller, and then enters the diffuser. >>>More
Air-cooled mostly modular scroll machines, water-cooled water source heat pumps are screw, water source heat pumps have centrifugal is a new technology, only to come out, there are a few companies with such technical capabilities, Midea, Geri, Foton, etc. Energy efficiency air cooling is generally around, water sources are generally around 5, and centrifugation is currently known above the amount, which is quite energy-saving. There is not much difference in cost, and the more energy consumption is later, the more money is saved, but when the area is small, the module is selected, and the basic water source screw or centrifuge is selected when the area is large.
It will definitely have an impact, the centrifugal fan should do a good job of surface cleaning, especially the air inlet and outlet of the fan can not have debris, and it is best to regularly remove the dust in the fan and pipe. In addition, the instructions given by the wonderful fan emphasize that the filter device or dust collector should be installed before the air inlet of the fan, and if the air inlet is uneasy about the equipment, a protective net must be added to prevent foreign objects from being inhaled and damaged to the impeller.
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