How to choose a reliable vacuum system correctly

A reliable vacuum system, the main pump of the Dalian pump accessory vacuum unit is a key issue that cannot be pursued solely based on one indicator, but must be considered comprehensively from multiple aspects according to the usage conditions. Dalian pump accessory manufacturer tells you seven points to master in vacuum pump selection and efficiently choose the main pump of the vacuum system.

1、 Determine the type of main pump based on the maximum pressure required to establish the vacuum chamber. The selection of the ultimate pressure of the main pump is generally half to one order of magnitude lower than the ultimate pressure of the vacuum chamber.

2、 Select the main pump based on the working pressure required for process production in the vacuum chamber. When selecting the main pump in vacuum pump selection, the working process environment of the main pump should be correctly selected. Within its working pressure range, it should be able to eliminate all the gas generated during the process in the vacuum chamber. Therefore, the working pressure inside the vacuum chamber must be within the range of the pumping speed pressure of the main pump.

3、 Select the main pump based on the volume of the vacuum chamber and the required pumping time. In the selection of vacuum pumps, the volume of the vacuum chamber has an impact on the time it takes for the system to reach the ultimate vacuum. When a certain pumping time is required, the larger the volume of the vacuum chamber, the higher the pumping speed of the main pump.

4、 Correctly assemble the vacuum pump. Due to the different performance of various vacuum pumps, sometimes choosing one pump cannot meet the pumping requirements, and several pumps need to be combined to complement each other in order to meet the pumping requirements.

5、 If the vacuum system strictly requires no oil, various oil-free pumps should be selected as the main pump. If the requirements are not strict, an oil pump can be chosen, and some anti oil pollution measures can be added, such as adding cold traps, baffles, oil blocking traps, etc., which can also meet the requirements of clean vacuum.

6、 When choosing a vacuum pump, it is important to know the composition of the gas being pumped and select the appropriate vacuum pump based on the composition of the gas being pumped. If the gas contains corrosive gases, particulate dust, etc., dry vacuum pumps, corrosion-resistant vacuum pumps, etc. should be considered, or auxiliary equipment should be installed on the inlet pipeline of the pump.

7、 Select the main pump based on economic indicators such as initial investment and daily maintenance costs of the entire vacuum system.

In the selection of vacuum pumps, different types of vacuum pumps have different energy characteristics, equipment purchase costs, and maintenance costs. Therefore, in the process of selecting the main pump for the vacuum system, enterprises need to match the requirements of the vacuum system reasonably according to their own budget situation and working environment.

According to the working principle of vacuum pumps, vacuum pumps can be basically divided into two types, namely gas transfer pumps and gas capture pumps. With the increasing demand for the pressure range of vacuum application technology in production and scientific research fields, it is mostly necessary to use several types of vacuum pumps to form a vacuum pumping system for joint pumping in order to meet the requirements of production and scientific research processes. Therefore, it is common to use vacuum pumping units composed of different types of vacuum pumps for pumping. For convenience, it is necessary to classify these pumps in detail according to their working principles or structural characteristics.