What is the outlet temperature of the high pressure blower
Time: 2018-06-30 20:25 Browse:
Because of the working principle of the high-pressure blower
, the "Principle of the operation of the high-pressure blower
" will be exhausted from the pump body after the air is frictionally compressed. How much is the wind. For details, please refer to this article: Why does the high-pressure blower heat
? There are operating principles and hot air reasons.
Then the high-temperature blower's air temperature is not high. It can be said that the temperature rise of each type of fan has a certain difference, not that the temperature rise is the same, just like the fan operation curve diagram, there is a certain temperature. Variety.
First, for example, when the high-pressure fan is open, that is, without any equipment and pipes, the temperature of the fan will be a few degrees higher than the current atmospheric temperature, such as the current atmospheric temperature is 30 degrees, then blow out After the wind is compressed, the temperature is not significantly higher because the load is very small. It is about plus or minus 5 degrees, so the temperature of the wind at this time is about 35 degrees.
2. If the pipeline has been connected and the fan is running under load, the temperature will rise a lot. If a 2.2kw single impeller fan has a flow of 265 cubic hours per hour, a positive pressure of 22kpa, and an outlet pressure of 10kpa At that time, if the atmospheric temperature is 30 degrees, the temperature will rise to about 50 degrees. If the outlet pressure of the fan is 20kpa, the temperature of the outlet will rise to more than 70 degrees. What is the concept of 70 degrees? Your hand will feel hot when you touch it.
3. If the pressure is closer to the rated pressure value indicated by the fan, the temperature rise will be higher. If it exceeds the marked pressure value, then the long-term operation of the motor will greatly reduce the life of the motor. The most serious case is burning. Bad motor, which is why, when we choose a fan model
, why do we usually choose a larger parameter, leaving a certain conservative margin.
It is precisely because this kind of high-pressure fan
has this kind of characteristic, so need to use in many occasions, such as air-drying and drying, material conveying and drying, the reason why the fan must use this kind of fan.