What parameters do we need to understand when choosing a Roots blower?
? ? ?When choosing a Roots blower, we first need to understand the Roots blower,Roots blowerThe main technical parameters include flow rate: pressure, power, medium, and density. Below, the editor will introduce it to everyone.
1. Technical parameters: Flow rate
? ? ? Flow rate, also known as air volume, is usually measured in cubic meters per minute or cubic meters per hour,Roots blowerThe flow parameter refers to the volume of gas transported per unit time under standard conditions. The calculation formula is as follows:
Q (in)=Q (out) x density of exhaust gas (kg/m3)/density of intake gas (kg/m3)
The standard flow rate Q (standard, m3/h, Converted from normal temperature and pressure to intake flow rate Q (intake, m3/min)， It can be calculated according to the following formula:
? ? ? Q (inlet)=Q (standard) x P (absolute pressure of inlet gas, Pa)/(P (absolute pressure of inlet gas, Pa) - S (relative humidity) x P (saturation pressure of water vapor, Pa) x T (thermodynamic temperature of inlet gas K)/273
Note: Standard state: 0 degrees Celsius, 0.1MPa dry state
2. Technical parameters: Pressure
? ? ? ?As long as it involvesfanAll of them involve pressure parameters, and Roots blowers are different from other types of blowers. The pressure parameters of Roots blowers are to overcome the resistance of pipelines, which is commonly known as back pressure in the industry. This pressure parameter is the main parameter in the selection process, and accurate required pressure parameters should be provided as much as possible during selection.
3. Technical parameters: Power
? ? ? ?Each brand produces different Roots blowers, so the power of each Roots blower is also different. In the Roots blower industry, power refers to shaft power, and the higher the shaft power, the higher the efficiency. The lower the shaft power, the greater the loss and consumption. When selecting a Roots blower, if there are certain requirements for shaft power, they should be marked in the procurement technical agreement.
4. Technical parameters: medium
? ? ? Roots blowers can only transport clean air, and the conveying medium is mainly air. With the continuous innovation of technology, Roots blowers can also transport gases such as coal gas and biogas, but special treatment is required for Roots blowers. It should be noted that the conveying medium here refers to the gas substances that pass through the interior of the Roots blower, which can also be used in the dust removal industry. Dust does not pass through the interior of the Roots blower, and the power provided by the Roots blower in the dust removal industry only provides power for dust. A distinction should be made here.
? ? ?When selecting Roots blowers, if the gas medium they transport contains water, oil, gas, toxic gases, etc., it is necessary to make a note. Special treatment must be carried out on Roots blowers for the transport of special gases before they can be used.
5. Technical parameters: Density
? ? ? When selecting Roots blowers, density is rarely mentioned as a parameter, but another parameter related to density is often heard: altitude. In high-altitude areas, gas density is low, and in low altitude areas, gas density is high. When selecting Roots blowers, if we are in high-altitude or basin areas, the density parameter plays a role in the selection, and the specific model parameters must be determined based on the gas density.
???? After knowing the parameters of the Roots blower, we can easily choose it. However, for different applicable scenarios, the fans we choose will be different, which requires professionals to tailor them for us,Shandong Juheng Environmental Protection Equipment Co., LtdWe have been deeply cultivating here for many years and have professional personnel to provide you with professional services.