single stage rotary vane vacuum pump in laboratory
How to choose the vacuum pump used in the laboratory is a problem that puzzles many users. After many users buy the vacuum pump, they will encounter various problems, such as insufficient vacuum observed by the vacuum gauge (insufficient suction), too slow pumping speed, too much noise in the relatively closed room, or oil mist can not be used properly when the pump is used. These problems are often related to type selection. The single-stage rotary vane vacuum pump is commonly used in the laboratory. It has stable performance, durability, strong power, no oil mist, low noise, low vibration and other advantages. Therefore, the application of single-stage rotary vane vacuum pump in the laboratory is very suitable.
General users may not be able to understand the relationship between the parameters of single-stage rotary vane vacuum pump and the actual use effect. Usually, the following factors are taken into account when users purchase laboratory vacuum meters:
1. Do you need to ensure that there is no pollution in the environment? Some vacuum pumps need to use other media to assist the operation of pumps, such as oil rotary vane vacuum pumps and water circulation vacuum pumps, which need to pour oil into pumps and connect water sources, respectively, because of their design principles. Oil mist will be emitted into the air when the pump oil is in use, which pollutes the environment, while the water pump must be near the sink because it needs to connect the water source. Some customers who need to suck the supernatant of cell culture in the cell room clean room can not use this kind of product. At this time, oil-free vacuum pump should be chosen, and this kind of product can be used by plugging in electricity.
2. What kind of equipment should be used together: different equipment have different purposes, some need higher vacuum degree, such as vacuum distillation; some need higher pumping speed, such as vacuum drying box, need to consider the internal volume of the box; and the application of vacuum suction filter is more complex, need to examine the filtrate capacity, particulate matter in the liquid. Content, and then according to different circumstances to choose the appropriate vacuum or pumping speed products.
3. Volume size of matching equipment: There is a correlation between the volume size of equipment and the pumping speed parameters of vacuum pump. For example, when matching with a general 1000ml vacuum filter bottle, I only need to use the minimum vacuum pump with pumping speed of 20L/min to meet the needs.
4. What accessories are needed to ensure normal use: the lack of accessories in some vacuum systems may make operation very difficult. For example, the vacuum regulating valve plays an important role in many applications. It can observe the working state of the system and adjust the pumping speed according to the actual needs. In vacuum filtration, anti-backdraft components, including buffer bottles and water-blocking filters, can effectively avoid backdraft damage to the vacuum pump, which is a very useful accessory.
Laboratory vacuum pumps are widely used. The application of single-stage rotary vane vacuum pumps in laboratory mainly includes the following aspects:
Vacuum suction filter: It can be matched with various laboratory vacuum filter devices, such as solvent filter, sand core filter bottle, Brinell funnel filter bottle, bottle top filter, microbial limit detection filter device, multi-filter and so on. Laboratory vacuum pumps are especially suitable for mixing with large capacity filter bottles and multi-channel filters because of their high vacuum degree and pumping speed. At the same time, in some cases where the filtration speed of ordinary suction pumps is slow or immovable, such as the detection and filtration of suspended solids in water or samples with high solids content, the use of laboratory vacuum pumps can achieve excellent results.
Vacuum drying: Suitable for use with small volume vacuum drying tank or vacuum drying box. The use of laboratory vacuum pump eliminates the need to replace pump oil, saves unnecessary trouble, and has lower noise.
SV Rotary Vane Vacuum Pump