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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.

然而，通常情況下，真空泵排氣孔噴油有兩種原因所致：

However, in general, there are two reasons for the injection of vacuum pump exhaust hole

1、真空加油過量，導致真空泵在工作時真空油隨排氣口噴出。

1. When vacuum pump is working, the vacuum oil will be ejected with the exhaust port.

2、密封溶劑太大，選用的真空泵抽氣速率太小。

2. The sealing solvent is too large and the vacuum pump is too low.

隨著真空技術在各個應用領域的不斷擴大，直聯(lián)旋片泵的需求量越來越大。由于這種泵數(shù)量很多，加工裝配工作量很大，價格又很低，所以有的國外真空廠商在中國建立專業(yè)廠。國產(chǎn)中小型直聯(lián)旋片泵在技術上已經(jīng)過關，價格又遠比國外的泵便宜，所以國產(chǎn)泵仍然有競爭優(yōu)勢，關鍵是要解決軸封漏油以及旋片材料和真空泵油的性能質(zhì)量問題，確保直聯(lián)泵在高速、高溫下性能穩(wěn)定和運行可靠，同時還要進一步提高國產(chǎn)直聯(lián)旋片泵抽除水蒸氣的能力。

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.