Polyester technology in vacuum system application _

polyester is used is a kind of synthetic raw materials production technology of synthetic fiber. In view of the low water absorption, dyeing difficulties and prone to static electricity, used for application of vacuum system in polyester plant. Three of the esters in China synthetic fiber industry occupies an important position. Therefore, solving the problem of polyester is equivalent to help better synthetic fiber industry.

as polyester technology level unceasing enhancement, many manufacturers will be according to their different technological characteristics and operating experience, continue to improve the vacuum system to effectively reduce the vacuum tube jam and to reduce the emissions of organic compounds. To ensure the long-term stable operation of the vacuum system.

polyester device used in the vacuum system of vacuum pump is mainly rotary-vane vacuum water pump and roots vacuum pump. Different polyester process on the requirement of the vacuum is different, can be used in different vacuum control mode.

the specific requirements of the vacuum system is used to obtain the vacuum extraction system. In the name of the similar to vacuum system is actually a vacuum device. Vacuum unit is a closed loop composed of multiple vacuum pump vacuum device. It has no certain devices, such as the radiator and condenser. Vacuum system is often referred to as a complete range of components. It is a vacuum pump, vacuum gauge, vacuum box, box and control integration, such as vacuum valve, cold trap and other components, they together according to certain requirements by vacuum tubes, and has the need to pump function of suction device. Its function is at a specified time and space for vacuum, vacuum, and ensure the implementation process and physical process in the system.

polyester device of the vacuum system function is to remove the ethylene glycol in the polycondensation reaction ( 如) Growth direction, along the chain reaction, and extract the reaction generated by a small amount of water and aldehyde. Other non-condensable gas can provide the boost required for reaction vacuum conditions, in order to ensure product quality.

in the pet plant, the vacuum system is as important as the body's respiratory system. In the late stage of polyester production, basic equilibrium state polycondensation reaction and degradation. In order to make the positive reaction smoothly, must be the effects of the small molecules by vacuum reaction continuously removed from the system, thus get a better response. Production of high viscosity polyester products.

after the modification of pet plant were chose vacuum system in pet plant, the application of pet plant production efficiency are increased obviously, improve the quality of productivity, made more progress, polyester industry has been widely used. Also received. Has a rapid development. We always believe that, with the continuous development of technology, China's polyester plant will towards a more advanced technology and the direction of better economic benefits.