The manufacturer of silent oil-free vacuum pump will let you know the considerations for choosing vacuum pump
1. The limit pressure of the vacuum pump should meet the working pressure of the process. Generally, the limit pressure of the pump is about an order of magnitude lower than the process requirements.
2. Each pump has a certain working pressure range. Therefore, the working point of the pump should be selected within this range, rather than allowing it to work at the allowable working pressure for a long time.
3. Under its pressure, the vacuum pump should be able to discharge all the gas generated in the process of vacuum equipment.
4. Select vacuum unit:
(1) When one pump cannot meet the requirements of air extraction and vacuum, several pumps need to be combined to complement each other to meet the process requirements
(2) Some vacuum hoppers cannot work under atmospheric pressure and need pre vacuum; The outlet pressure of some vacuum pumps is lower than atmospheric pressure, which requires a front-stage pump, so the pumps need to be combined for use. The combined vacuum pump, we call it vacuum pump unit, can make the vacuum system get better vacuum degree and exhaust volume. We should correctly select the combined vacuum pump, because different vacuum pumps have different requirements for the extracted gas. For example, in general, roots rotary vane unit is not used in systems containing more condensable gas.
5. When you choose oil seal pump, you should first know whether your vacuum system has requirements for oil pollution. If the equipment is strictly required to be oil-free, various non oil pumps should be selected, such as water ring pumps, cryogenic pumps, etc. If the requirements are not strict, there are oil pumps and some oil pollution prevention measures, such as cooling wells, oil retaining wells, baffles, etc., which can also meet the requirements of clean vacuum.
6. Know the composition of the extracted gas, whether the gas contains condensable steam, whether there is particulate dust, whether it is corrosive, etc. When selecting a vacuum pump, you need to know the gas composition and select the corresponding pump for the pumped gas. If the gas contains neat, granular and corrosive gases, it should be considered to install auxiliary equipment on the air inlet pipeline of the pump, such as condenser, dust collector, etc.
1. The limit pressure of the vacuum pump should meet the working pressure of the process. Generally, the limit pressure of the pump is about an order of magnitude lower than the process requirements.
2. Each pump has a certain working pressure range. Therefore, the working point of the pump should be selected within this range, rather than allowing it to work at the allowable working pressure for a long time.
3. Under its pressure, the vacuum pump should be able to discharge all the gas generated in the process of vacuum equipment.
4. Select vacuum unit:
(1) When one pump cannot meet the requirements of air extraction and vacuum, several pumps need to be combined to complement each other to meet the process requirements
(2) Some vacuum hoppers cannot work under atmospheric pressure and need pre vacuum; The outlet pressure of some vacuum pumps is lower than atmospheric pressure, which requires a front-stage pump, so the pumps need to be combined for use. The combined vacuum pump, we call it vacuum pump unit, can make the vacuum system get better vacuum degree and exhaust volume. We should correctly select the combined vacuum pump, because different vacuum pumps have different requirements for the extracted gas. For example, in general, roots rotary vane unit is not used in systems containing more condensable gas.
5. When you choose oil seal pump, you should first know whether your vacuum system has requirements for oil pollution. If the equipment is strictly required to be oil-free, various non oil pumps should be selected, such as water ring pumps, cryogenic pumps, etc. If the requirements are not strict, there are oil pumps and some oil pollution prevention measures, such as cooling wells, oil retaining wells, baffles, etc., which can also meet the requirements of clean vacuum.
6. Know the composition of the extracted gas, whether the gas contains condensable steam, whether there is particulate dust, whether it is corrosive, etc. When selecting a vacuum pump, you need to know the gas composition and select the corresponding pump for the pumped gas. If the gas contains neat, granular and corrosive gases, it should be considered to install auxiliary equipment on the air inlet pipeline of the pump, such as condenser, dust collector, etc.
7. When selecting an oil sealed vacuum pump, consider the impact of the oil vapor (oil smoke) discharged by the vacuum pump on the environment. If the environment is not allowed to be polluted, oil-free vacuum pump should be selected, or the oil steam should be discharged outdoors.
8. Whether the vibration produced by the vacuum pump during operation has any impact on the process and environment. If the process is not allowed, choose a pump without vibration or choose anti vibration measures.
9. Price, operation and maintenance cost of vacuum pump.
After considering various situations, we can determine a solution suitable for you:
(1) Small investment costs.
(2) Small production and operation costs.
(3) Consider the first two cases comprehensively.
