Posted on Sat, 29 Dec 2018 03:21:11 +0000
Vacuum control is very important in freeze-drying process. Personally, whether the vacuum control is stable and accurate is one of the most important indicators to distinguish whether the freeze dryer is “good”. Temperature control is obviously much easier than vacuum control. To disc...
Read MorePosted on Sat, 29 Dec 2018 03:03:34 +0000
Water ring vacuum pump is one of the most commonly used vacuum pumps in paper industry. Most of the paper machine projects completed at present still use water ring vacuum pump as the standard of vacuum system. water ring vacuum pump Advantages : 1. The structure is simple, the manufacturing ac...
Read MorePosted on Sat, 29 Dec 2018 02:52:24 +0000
Speaking of the application of vacuum pumps, there are too many, because there are many types of vacuum pumps, which are widely used in plastic machinery, pesticide chemical industry, Dyestuff Chemical industry, brick and tile machinery, cryogenic equipment, paper-making machinery, pharmaceutical...
Read MorePosted on Sat, 29 Dec 2018 01:41:52 +0000
Rotary vane vacuum pump rotary vane vacuum pump working principle: The rotary vane of rotary vane vacuum pump divides the crescent space enclosed by the rotor, pump chamber and two end caps into three parts: A, B and C. When the rotor rotates in the direction of arrow, the volume of space A conn...
Read MorePosted on Sat, 29 Dec 2018 01:30:43 +0000
Vacuum elements with the same vacuum degree can share a gas-water separator. In the front section of the forming part with a very small gas-water volume ratio, one gas-water separator can be used for more vacuum elements. In the back section of the forming part and the pressing part with large ga...
Read MorePosted on Sat, 29 Dec 2018 01:27:04 +0000
After using it for a period of time, we may suddenly find that the droplets at the outlet of the vacuum pump or the vacuum value can not go down, even the low boiling point solvent can not distill, what is the situation in the end? One possibility is that the vacuum pump needs to replace the diap...
Read MorePosted on Sat, 29 Dec 2018 01:20:23 +0000
Vacuum pumps play an important role in condensing steam turbines. Before start-up, vacuum pump extracts gas from condenser to establish vacuum. During start-up and operation, vacuum pump extracts non-condensable gas which leaks or carries working substance into condenser to enhance the condensati...
Read MorePosted on Thu, 27 Dec 2018 04:02:25 +0000
Recently, many friends consulted and feedback their production of liquid ring vacuum pumps because of high temperature in summer, vacuum can not go up, impellers are often replaced due to corrosion and cavitation, oil-free screw pump, claw pump rotor is often stuck in the car, and because of the ...
Read MorePosted on Thu, 27 Dec 2018 03:40:00 +0000
As for the liquid ring vacuum pump, I believe all of you here know something about it. There are many manufacturers of vacuum pumps in China, so I will not list them one by one. As for the control of liquid ring vacuum pump, the first point is the control of water quantity and the second point is...
Read MorePosted on Thu, 27 Dec 2018 03:27:01 +0000
Water ring vacuum pump (hereinafter referred to as water-ring pump) is a kind of coarse vacuum pump. The maximum vacuum it can obtain is 2000-4000Pa, and the air ejector in series can reach 270-670Pa. Water ring pump can also be used as a compressor, known as water ring compressor, is a low-pres...
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