Micro vacuum pumps have a wide range of applications, such as medical care, medicine and hygiene, bioengineering, and so on. Do you know some common sense about micro vacuum pumps?
The so-called vacuum refers to a gas state with a pressure lower than 101325Pa in a given space. In the vacuum state, the lean degree of the gas is usually expressed by the pressure value of the gas. Obviously, the smaller the pressure value, the thinner the gas. There are a variety of micro vacuum pumps in the industry. There are prescribed test methods for the performance of various pumps. The main parameters are:
1. Pumping rate: The volume of gas flowing through the unit time at the suction port of the micro vacuum pump. Traditional industrial vacuum pumps are generally large in size, and the work of the pump requires special vacuum pump oil and lubricating oil, and the medium gas contains a large amount of oil mist.
2.Ultimate vacuum (usually referred to as vacuum): connect the micro vacuum pump to the detection container, put the gas to be tested, and perform continuous pumping for a long time. When the gas pressure in the container no longer drops and maintains a certain value , This pressure is called the ultimate vacuum of the pump. The smaller the value, the closer to the theoretical vacuum.
With the development of the instrumentation industry and people's requirements for environmental protection, the miniature oil-free vacuum pumps of various countries have emerged as the times require. There is generally the following law: the price of the micro vacuum pump is closely related to the vacuum index.
The vacuum index is the main index that manufacturers in various countries are striving to pursue. It reflects the overall strength of the corresponding mechanical processing, sealing technology, material science and other fields, and is also an important means for manufacturers to obtain profits.
To improve the vacuum index of the micro vacuum pump, higher sealing conditions are necessary. Therefore, it is necessary to use parts with more precise dimensions and better material properties, so the production cost is greatly increased. Moreover, the increase in prices is far greater than the increase in the vacuum index. Of course, the increase in the pumping rate will also cause the price to rise, but the increase is not large. Therefore, when choosing a micro vacuum pump, you need to carefully consider the vacuum index, the pumping rate index, and your own usage, so as to best balance the performance and cost.
The high vacuum micropump adopts very precise sealing parts, so it has higher requirements on the clean conditions, temperature parameters, and medium composition of the working environment. Vibration and noise. The higher the pumping rate and vacuum degree of the micro vacuum pump, the greater the vibration and noise.
The above is the common sense of some micro vacuum pumps. micro vacuum pumps play an indispensable role in many fields such as chemical analysis, medical care, medicine and hygiene, bioengineering, automatic control, environmental protection, and water treatment.
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