Fixed-chip vacuum pump features

[Asia Fluid Network News] fixed-chip vacuum pumps, they are not only used to make diffusion pump or condensate pump foreline pump, also commonly used in vacuum cooling, drying distillation process. Fixed-chip vacuum pump is characterized by simple structure, long service life, maintenance is also very easy. Fixed-disc vacuum pumps Under normal circumstances the general structure of the vacuum pump is not suitable for pumping gas containing a large amount of water vapor, because steam condensation occurs during compression, and because the pressure in the compression chamber is gradually increased to saturation vapor pressure (The operating temperature of the pump is about 60 ° C and its saturated vapor pressure is 150 mmHg), the vapor starts to condense, and the vent valve is not open at this time, so the vapor does not flow out and the vapor condenses into water in the pump, Mix with oil and stay in the pump. The water mixes with oil and forms an emulsion. The oil is acidic, causing gelation of the oil and oxidation of the metal parts of the pump, damaging the mechanical pump, sometimes condensing water, When the gas is circulated to the inlet end, it will also cause re-evaporation and enter into the drawn container, thereby destroying the vacuum of the drawn container. Fixed-chip mechanical pump is characterized by simple structure, long service life, maintenance is also very easy. However, when the volume is relatively large (that is, the pumping rate is relatively large), the slide plate is rarely used because it is difficult to guarantee the sealing. Due to the development of the market, the fixed-plate vacuum pump itself is constantly improving its share of the entire market due to its long service life, easy maintenance and easy operation. Because of its shortcomings, For professionals, it also has room for development and improvement. The level of industrial production in our country is constantly improving. How the fixed-piece mechanical pump can reflect its own value here remains to be further studied and innovated. Related articles: Fixed-chip vacuum pump working principle and structure of the valve-type vacuum pump selection

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