Posted on Thu, 19 Jul 2018 02:59:15 +0000
The core components of molecular pumps are rotating blades and fixed blades. The speed of rotating blade reaches 1800 ~ 90000rpm, and the speed of blade end reaches hundreds of m/s, which is close to the average speed of molecules. The gas molecules are transported to the exhaust port through the...
Read MorePosted on Wed, 18 Jul 2018 02:43:31 +0000
The pumping speed of the oil diffusion pump remains unchanged within a wide range of inlet pressure. At this time, the pumping speed of the pump is independent of inlet pressure. However, under low and high inlet pressure, the pumping speed of the pump tends to decrease. In the low inlet pressure...
Read MorePosted on Wed, 18 Jul 2018 02:29:41 +0000
The vacuum pump is made up of: pump cover, pump body, disk, impeller, mechanical seal, motor and other parts. Properly assembling the impeller on the shaft can ensure that the water ring vacuum pump has good volume efficiency and prevent vibration. Vacuum pump impeller center hole there is a scre...
Read MorePosted on Tue, 17 Jul 2018 02:24:24 +0000
Roots pump is a kind of rotary varactor vacuum pump, will only be used with backing pump with, in a wider range of pressure pumping speed, greatly to be pumping gas containing dust and water vapor is not sensitive, it is widely used in metallurgy, chemical industry, food, electronic plating, etc....
Read MorePosted on Tue, 17 Jul 2018 02:01:02 +0000
A vacuum valve is a vacuum system element used in a vacuum system to change the direction of the air flow, adjust the size of the air flow, and cut off or connect pipes. The vacuum valve closure is sealed with a rubber seal or metal seal. The bellows of the bellows globe valve are made of stainle...
Read MorePosted on Mon, 16 Jul 2018 03:15:25 +0000
The vacuum is obtained by means of the vacuum pump. Different types of pump, it has certain working conditions and range, when choosing vacuum pump, it should take full consideration of its characteristics and specifications, and start from the following four conditions of the designed system. (1...
Read MorePosted on Mon, 16 Jul 2018 02:43:34 +0000
2 x type rotary vane vacuum pump to the two-stage structure and its working performance levels by high pressure and low pressure of two parts, its inlet connected to the vacuum container or a vacuum equipment, when operating the gas will be a lot of suction and discharge container. When equipment...
Read MorePosted on Fri, 13 Jul 2018 03:02:05 +0000
Because the working principle of various electric vacuum devices is based on electric and magnetic fields to control the movement of electrons in space so as to enlarge, oscillate and display images. And vacuum pump system can prevent the electrons and the collision of gas molecules, ensure that ...
Read MorePosted on Fri, 13 Jul 2018 01:58:37 +0000
The piston vacuum pump is equipped with a pneumatic mechanism, which can speed up the extraction of steam without contaminating the oil. Such as when the rotary piston vacuum pump only smoke in addition to the permanent gases, gas liquefaction due to pressure increase, no pump oil degradation, bu...
Read MorePosted on Thu, 12 Jul 2018 02:46:00 +0000
In the use of water ring vacuum pump in the process of the installation of equipment, but the correct installation is the premise of guarantee the normal work in the future, so during the installation process should pay attention to what we should pay attention to the problem? (1) derusting, clea...
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