The common cooling modes of Roots blower include water cooling and air cooling. The water cooling mode is to add a cooling water system to Zhi and use cooling water for cooling; The air cooling mode is to increase the fan and exhaust duct to exhaust the heat of the fan indoors. Through operation, it is found that the water cooling mode will not have any impact on the indoor environment, and the air cooling mode will affect the environment of the machine room in summer.
Because the outdoor temperature in summer is higher than 40 ℃, the heat discharged into the room can not achieve the purpose of cooling, but also increase the indoor temperature. However, the air cooling mode will not affect the environment of the machine room in winter, so the cooling mode can be selected according to the time.
Roots blower is a type of displacement fan, which has two three blade impellers rotating relatively in the space sealed by the casing and wall plate. Because each impeller uses involute or the envelope of the cycloid as the impeller processing profile, the three blades of each impeller are identical, and the two impellers are identical, This greatly reduces the processing difficulty. Numerical control equipment is used during impeller processing to ensure that a certain minimum clearance can be maintained no matter where the two impellers rotate, under the condition that the center distance between the two impellers is constant, so as to ensure that the gas leakage is within the allowable range.
One of them is air cooling, that is, air cooling, that is, there is no need for another cooling method. When the pressure is low, the fan can dissipate heat through air for natural cooling. Its characteristics are low pressure, simple structure, and suitable for small Roots fans with small operating power.
The other is water-cooled. The overall structure of Roots blower in this cooling mode is complex. When the fan pressure is higher than 80kpa, it needs to be water-cooled. Because the fan pressure is too high, the fan temperature will be too high, and long-term operation will damage the bearings and gears! Water cooling can reduce fan temperature and extend fan life.
According to the above contents, if we can use air cooling, we will not use water cooling. The direct impact of water cooling on us is the loss of cooling water, and at the same time, it increases part of the power consumption.
What is the cooling method related to?
Generally, the cooling mode of three blade Roots blower is related to its own pressure. The high pressure to overcome requires water cooling. When the temperature is lower than 98kpa, air cooling can be used, and when the pressure exceeds this pressure, water cooling can be used.
Where is the water-cooled place?
The water-cooled cooling water is completely cooled to the oil tank. After the cooling water in the oil tank is cooled, the blower starts again and cools to the oil tank. If our blower is a double pole tandem type, the air will also be cooled after single-stage boosting. The cooling water cools the air, and the cooling air is pressurized again. The whole oil tank must also be cooled with cooling water.
I believe that after reading the above content, you should also have a better understanding of the cooling mode of Roots blower. I hope it will be helpful to you.
Text label: Roots blower
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