Posted on Fri, 18 May 2018 05:56:56 +0000
There are three kinds of denotations and formulas for water ring vacuum pumps energy efficiency value,which analysis method to determine the energy efficiency assessment points. Through a comparative study proposed energy efficiency evaluation method of water ring vacuum pump products and the det...
Read MorePosted on Fri, 18 May 2018 05:56:23 +0000
Vacuum pumps, invented hundres of years ago, back again to the 1600’s, have, of course, been improved over the many years for many new uses, however the idea is basically the same, to produce a vacuum, so there can be a void close to fluid or gas and that fluid or gas will rush in to the vo...
Read MorePosted on Fri, 18 May 2018 05:55:55 +0000
Rotary vane vacuum pumps(rotary vane pump for short) is an oil seal mechanical pump. The working pressure range of 101325 ~ 1.33 × 10-2 (Pa) is a low vacuum pump. It can be used alone as other high vacuum pumps before. It has been widely used in metallurgy, machinery, military, electronics, chemi...
Read MorePosted on Fri, 18 May 2018 05:55:23 +0000
1, The ultimate pressure of the vacuum pump should meet the process of working pressure.Choose the ultimate pressure of the pump is lower than the technical requirements about an order of magnitude. 2, Scope of each vacuum pump has a certain work pressure, therefore, the working point of t...
Read MorePosted on Fri, 18 May 2018 05:54:34 +0000
Due to a variety of vacuum pump performance will satisfy to vacuum containers in addition to have in common, it also has the differenent place .So must clear when choose vacuum pump in the vacuum system to work is very important, vacuum pumps in various work areas the role of the sum up basically...
Read MorePosted 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...
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