Roots blower exhaust temperature
The exhaust temperature of a Roots blower is an important operating parameter that is influenced by various factors. The following is a detailed analysis of the exhaust temperature of Roots blower:
1、 Normal exhaust temperature range
Generally speaking, the intake temperature of a regular Roots blower is usually around 40 degrees Celsius, while the exhaust temperature varies depending on the pressure, but usually does not exceed 140 degrees Celsius. If the exhaust temperature exceeds this range, cooling treatment may be necessary.
2、 Factors affecting exhaust temperature
1. Inlet gas temperature: Roots blower has two air outlets, one is the inlet and the other is the exhaust. Generally speaking, the gas temperature conveyed by a Roots blower is around 40 degrees Celsius, and the outlet temperature is around 80-100 degrees Celsius. If the temperature of the gas at the inlet increases, the temperature at the outlet will also increase accordingly. For example, in summer, due to high ambient temperatures, the inlet temperature of a Roots blower may exceed 45 degrees, resulting in a corresponding increase in outlet temperature.
2. Pressure factor: During the conveying process of the same model of Roots blower, the higher the back pressure, the higher the temperature of the outlet gas. This is because gas releases heat during the compression process. The higher the back pressure, the more severe the compression, and the more heat is released, resulting in a higher exhaust temperature.
3. Volume efficiency factor: Volume efficiency refers to the volume of mixed gas truly inhaled by the fan during the intake process divided by the volume of the fan. Under the same pressure model, the higher the volumetric efficiency, the lower the temperature; The lower the volumetric efficiency, the higher the exhaust temperature.
4. Pipeline factor: The pressure build-up in the pipeline is also a factor that can easily cause the fan temperature to become too high. If the diameter of the main pipe at the outlet of the Roots blower is artificially changed, it is easy to cause pressure build-up, which can affect the normal outlet pressure and exhaust temperature of the blower.
5. Working environment: The fan operates in the fan pump room according to normal design standards, but many Roots fans operate in outdoor environments. This will cause the fan to be affected by environmental factors such as temperature and humidity, thereby affecting the exhaust temperature.
6. Fan configuration: The pressure and air volume of the fan are the same, but if there is a situation where a small motor is equipped with a large fan (i.e. a small horse pulling a large truck), it will cause a relatively large load on the motor in order to meet the flow requirements for use, resulting in overheating of both the motor and the fan.
3、 Cooling measures
1. Installing heat dissipation devices: Installing heat dissipation devices such as heat sinks or fans on Roots blowers can help reduce the temperature of the fan.
2. Optimize working environment: Try to install Roots blowers in well ventilated and suitable temperature environments, and avoid using them in harsh environments such as high temperature and humidity.
3. Regular inspection and maintenance: Regularly inspect and maintain the Roots blower, including cleaning the filter screen, checking the wear of bearings and gears, etc., to ensure the normal operation of the blower and reduce the failure rate.
In summary, the exhaust temperature of Roots blowers is affected by various factors, and it is necessary to fully consider these factors in the design, installation, and operation process, and take corresponding measures to reduce the exhaust temperature, ensure the normal operation of the blower, and extend its service life.
