Posted on Fri, 18 May 2018 05:53:30 +0000
Roots vacuum pump (referred to as the Roots pump) is a rotary positive displacement pumps. It is evolved from the Roots blower. Depending on the scope of work Roots vacuum pump, is divided into vertical atmospheric low Roots vacuum pump; a Roots vacuum pump (also called mechanical booster) and hi...
Read MorePosted on Fri, 18 May 2018 05:52:41 +0000
Since the 1950s, China’s salt industry has experienced great changes in production after the United States and the Soviet Union. For salt, they use multi-effect evaporation process, increasing the effective temperature difference ,then to increase production, energy saving, and the first e...
Read MorePosted on Fri, 18 May 2018 05:52:07 +0000
A turbo-molecular pump has disadvantages like any vacuum pump. Here are some disadvantages: (1) high cost Turbo molecular pumps and cryogenic pumps at the pumping speed more than 1000l/s are expensive than the diffusion pump at the same pumping speed. However, due to the turbo molecular pump in t...
Read MorePosted on Fri, 18 May 2018 05:51:33 +0000
1, the steam ejector pump Steam jet pump is a single-stage steam ejector, steam at high pressure to work 1000 ~ 1400m / s high speed from the nozzle. In the course of the injection pressure of the steam energy into kinetic energy to generate a low pressure, the gas inhalation. Gas mixed with the ...
Read MorePosted on Fri, 18 May 2018 05:50:57 +0000
Vacuum pump system used in the material can be divided into structural and auxiliary materials. The former is the main material of the vacuum system. It spaced vacuum and atmosphere. Withstand the atmospheric pressure is usually metal and / or glass. The latter refers to the elastic sealing mater...
Read MorePosted on Fri, 18 May 2018 05:50:18 +0000
The basic characteristics of the vacuum valve having high airtightness (sealing reliable); resistance to airflow as small as possible (i.e., the conductance valve as large as possible); a sealing member wear resistance, can be used repeatedly, and long life; Valve materials and seals outgas small...
Read MorePosted on Fri, 18 May 2018 05:48:50 +0000
Vacuum system is composed of a vacuum vessel, vacuum pumps, vacuum valves, vacuum gauge, vacuum sealed, condenser and pipe combination according to certain requirements. Basic requirements (1) of the vacuum system (a) freeze-drying of materials needed, should be able to reach a certain limit vacu...
Read MorePosted on Fri, 18 May 2018 05:47:26 +0000
Some of the chemical production process, often need to be at less than atmospheric pressure. Vacuum is an absolute pressure lower than atmospheric machinery and equipment. Many structural type vacuum pump, hereby the chemical commonly used in several types of vacuum pumps are described below. 1. ...
Read MorePosted on Fri, 18 May 2018 05:46:04 +0000
How to do when the liquid ring vacuum pump corrosion in the chemical industry Vacuum device used in the chemical industry are often subject to corrosion, which gives the liquid ring vacuum pump to bring a lot of problems, corrosion resistance of the pump will bring damage, serious can not be prod...
Read MorePosted on Fri, 18 May 2018 05:44:37 +0000
Liquid ring vacuum pumps market positioning Throughout the development of the market potential for liquid ring vacuum pumps, scalability is relatively large, after so many years of use, the water pump has been standing in front of several products in the field of vacuum, which also proved its hig...
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