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油封式旋片真空泵是真空技术中最基本的真空获得设备之一 ,应用面广而量大。但其在恶劣介质环境 (如含有大量可凝气体、可凝结介质、灰尘 ,频繁大气起动及经常工作于高压强状态等 )中使用 ,则因为油路易堵塞、油性能快速下降、被污染的油返入泵腔或排气阀易损坏而造成泵油浪费、泵性能下降甚至泵损坏。本文介绍了通过改进后的油循环结构及排气阀结构的油封式旋片真空泵 ,使其广泛应用于恶劣介质环境而保持长期性能稳定
Oil seal rotary vane vacuum pump vacuum technology is one of the most basic vacuum access to equipment, a wide range of applications and large. However, it is used in harsh media environment (such as containing a large amount of condensable gas, condensable media, dust, frequent atmospheric start-up and frequent work in high pressure conditions, etc.), the oil performance is rapidly deteriorated due to the blockage of the oil circuit. Return to the pump chamber or exhaust valve is easily damaged caused by waste oil pump, pump performance degradation or pump damage. This article describes the improved oil circulation structure and exhaust valve structure of the oil seal rotary vane vacuum pump, making it widely used in harsh media environment and maintain long-term performance and stability