The main purpose of the steaming machine is to combine and twist the continuous yarns with weaving conditions, and then set them, that is, to stabilize the twist under a certain pressure and temperature, and to obtain a balanced and non twisted yarn. The use process of the yarn steamer is vacuum ...

The noise of the piston vacuum pump is mainly caused by the impact, including the impact of the oil on the piston and the pump chamber wall, the impact between the exhaust valve plate and the valve seat (or pump body), the impact between the piston (ring) and the pump chamber wall. The impact bet...

At present, the use of vacuum pump is widespread and common. You don’t know the details of the use of vacuum pump very well. In order to better use the vacuum pump, Xiao Bian will discuss the details of the use of vacuum pump with you. 1. Master the vacuum volume of vacuum pump. In the proc...

Requirements for sealing materials of vacuum pump are as follows: 1. Vacuum pump should have enough low saturated vapor pressure. In general, the saturated vapor pressure at room temperature shall be less than 1.3 × 10-1 ~ 1.3 × 10-2Pa in low vacuum and 1.3 × 10-3 ~ 1.3 × 10-5pa in high vacuum. 2...

Rotary vane vacuum pump is the most important vacuum pumping equipment of condenser in power plant. Because most of the existing thermal power plants use wet cooling units, the configuration and application of rotary vane vacuum pump in wet cooling units are relatively mature. Air cooling technol...

Phosphorus fertilizer is the only chemical fertilizer which is easy to bring harmful and toxic heavy metal components in resources and processing. At present, there are two main raw materials for the production and processing of phosphate fertilizer, one is phosphate rock, the other is sulfuric a...

Freeze dryer is widely used in medicine, biological products, chemical industry and food industry. Freeze drying technology is very suitable for heat sensitive substances such as antibiotics, vaccines, blood products, enzyme hormones and other biological tissues. The freeze dryer is composed of r...

What are the advantages of dry screw vacuum pump in the practical application of fluid transportation? Most of the materials processed in chemical production are fluid. It is an important link to transport these materials between chemical equipment and machines according to the process requiremen...

Because the functions of various vacuum pumps are different from each other, except that they can meet the matching point for the container to stop vacuumizing. Therefore, it is necessary to understand that the mission of the vacuum pump in the vacuum system is very tense. The influence of the va...

The function of vacuum pump is to remove gas molecules from the vacuum chamber, reduce the gas pressure in the vacuum chamber, and make it reach the required vacuum degree. Generally speaking, there is a large range from atmosphere to extremely high vacuum. So far, no vacuum system can cover this...