Roots vacuum pump unit can operate for a long time in the field of high pressure. According to the performance and characteristics of Roots vacuum unit, this paper summarizes the economic benefits obtained after replacing the water steam jet vacuum pump in the petroleum vacuum distillation unit, and gives you specific reasons.
1. Almost all the vacuum distillation units in domestic refineries are used to use the traditional steam jet vacuum pump as the main means of evacuation. Although the structure of the water steam jet vacuum pump is simple, the maintenance is small and the operation is reliable, it consumes a lot of water steam and cooling water, but the obtained vacuum degree is low, which makes the crude oil not get deep displacement and the oil displacement rate is low;
2. Because there is a large amount of condensate mixed with the condensate of oil vapor, it wastes oil and causes serious environmental pollution The so-called "dry distillation" is used in the pressure reducing devices of refineries in the United States and Japan. In addition to the transformation of the original pressure reducing tower, the main purpose is to select and modify the design of the evacuation equipment. In the United States, roots vacuum pump with return air-conditioner is used as the main pump to overcome the heating of Roots vacuum pump unit when it operates under high pressure.
The reason of the vacuum pump used in each equipment has different purposes and functions. Of course, only after we have a more familiar understanding can we judge why it is used in this equipment.
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