进口低温截止阀,(德国奥莱斯OLES阀门)
【进口低温截止阀】详细说明:
低温门进口低温截止阀是指用于-40℃--196℃的低温不锈钢阀门,包括低温球阀、低温闸阀、低温截止阀、低温安全阀、低温止回阀,低温蝶阀,低温针阀,低温节流阀,低温减压阀等,主要用于乙烯,液化天然气装置,天然气LPG LNG储罐,接受基地及卫星站,空分设备,石油化工尾气分离设备,液氧、液氮、液氩、二氧化碳低温贮槽及槽车、变压吸附制氧等装置上。输出的液态低温介质如乙烯、液氧、液氢、液化天然气、液化石油产品等,不但易燃易爆,而且在升温时要气化,气化时,体积膨胀数百倍。
Low Temperature Globe Valve for Low Temperature Door Import refers to low temperature stainless steel valves for - 40 ~196 ~C, including low temperature ball valves, low temperature gate valves, low temperature globe valves, low temperature safety valves, low temperature check valves, low temperature butterfly valves, low temperature needle valves, low temperature throttle valves, low temperature pressure relief valves, etc. It is mainly used in ethylene, liquefied natural gas plants, natural gas LPG. LNG storage tank, acceptance base and satellite station, air separation equipment, Petrochemical tail gas separation equipment, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide cryogenic storage tank and tank car, pressure swing adsorption oxygen production equipment. Output liquid cryogenic media such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, etc., are not only flammable and explosive, but also gasifiable when heating up. When gasifying, the volume expands hundreds of times
【进口低温截止阀】工作原理:
(1)低温阀门进口低温截止阀的长阀杆具有保护低温阀门填料函的功能,因为填料函的密封性是低温阀的关键之一。该填料函处如果泄漏,将降低保冷效果,导致液化气体气化。在低温状态下随着温度的降低,填料弹性逐渐消失,防漏性能随之下降,由于介质渗漏造成填料与阀杆处结冰,影响阀杆正常操作同时也会因阀杆上下移动而浆填料划伤,引起严重泄漏。因此要保证填料臬部位的温度在8℃以上。
(2) 低温阀门的长阀杆盖结构便于缠绕保冷材料,防止低温阀门冷能损失。
(3) 低温阀门进口低温截止阀的长阀杆便于阀门主件通过阀盖拆下进行快速更换。由于设备冷段中的工艺管道和阀门经常装设在'冷箱'中,长颈阀盖可以穿过'冷箱'壁伸出。更换阀门主件时,只需通过阀盖进行拆换,而不需拆卸阀体。阀体与管道焊接成一体,尽可能地减小了冷箱的渗漏,保证了阀门的密封性。