Addtime： 2020-07-17 Browse times： 3769
Vacuum pump is a kind of rotary variable volume pump. It can be used only with the cooperation of the front stage pump. It has a large pumping speed in a wide pressure range. It is insensitive to dust and water vapor in the extracted gas. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.
However, in general, there are two reasons for the injection of vacuum pump exhaust hole
1. When vacuum pump is working, the vacuum oil will be ejected with the exhaust port.
2. The sealing solvent is too large and the vacuum pump is too low.
With the continuous expansion of vacuum technology in various application fields, the demand for direct coupled vane pump is increasing. Because of the large quantity of this kind of pump, the workload of processing and assembling is very large, and the price is very low, some foreign vacuum manufacturers have set up professional factories in China. Domestic small and medium-sized direct vane pump has passed the technical requirements and its price is much cheaper than foreign pumps. Therefore, domestic pumps still have competitive advantages. The key is to solve the problems of shaft seal oil leakage, performance and quality of rotary vane materials and vacuum pump oil, so as to ensure stable performance and reliable operation of direct coupled pump at high speed and high temperature, and further improve the steam extraction of domestic direct coupled vane pump Ability.
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