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- 请求信息 : 2022-08-15 08:57:14 HTTP/1.1 GET : http://www.oulam.cn/product/ball_valve/003-004098.html
- 运行时间 : 0.466851s [ 吞吐率:2.14req/s ] 内存消耗:5,782.09kb 文件加载:242
- 查询信息 : 232 queries
- 缓存信息 : 0 reads,1 writes
- 会话信息 : SESSION_ID=b6a98476d2754fef4852cb49aeb3dbb7
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进水区和出水区的作用是使水流均匀地通过浮动球阀(Q47Y)流过沉淀塔,避免短流和减少紊流对沉淀产生的不利影响,同时减少死水区、提高沉淀塔的容积利用率;沉淀区也称澄清区,即沉淀塔的工作区,是可沉淀颗粒与污水分离的区域;污泥区是污泥贮存、浓缩和排出的区域;缓冲区则是分隔沉淀区和污泥区的水层区域,保证已经沉淀的颗粒不因水流搅动而再行浮起。
浮动球阀在各种阀门中,球阀的流动阻力最小,全径球阀打开时,球体通道、阀体通道和连接管径相等并成一直径,介质几乎可以毫无损失的流过浮动球阀旋转90°即可全关全开,启闭迅速。与相同规格的闸阀、截止阀比较、球阀体积小、重量轻,便于管道安装浮动球阀有先进的阀座:聚多年球阀制造经验而设计的阀座,确保阀门密封,磨擦系数低,操作力矩小、多种阀座材料、适应范围广。
浮动球阀的球体是浮动的。在介质压力的作用下,球体能产生一定的位移,压在出口的密封面上,保证出口的密封。
浮动球阀结构简单,密封性能好,但球体承受的工质载荷全部传递给出口密封圈。因此,需要考虑密封圈材料是否能承受球介质的工作载荷,球在受到高压冲击时可能发生移位。这种结构一般用于中低压球阀。
浮动球阀的主要特点是结构紧凑、密封可靠、结构简单、维护方便。密封面和球面始终处于封闭状态,不易被介质侵蚀,易于操作和维护。适用于水、溶剂、酸、天然气等一般工作介质,也适用于氧气、双氧水、甲烷、乙烯等工作条件较差的介质。广泛应用于各行各业。球阀可以是整体式的或组合式的。
浮动球阀流体阻力小,是所有阀类中流体阻力最小的一种,启闭迅速方便,以压缩空气为动力,通过活塞齿条,齿轮的机械传动阀杆,以角行程输出的扭矩转动球体 0~90°,就能快速完成启闭动作或调节动作。球芯通道平整光滑,不易沉积介质,可以进行管线式通球。结构简单、重量轻、密封性能好。是自动化控制系统中仪表的执行单元。
紧密可靠,球阀的密封面材料广泛使用塑料、密封性好,在真空系统中也已广泛使用。在全开或全闭时,球体和阀座的密封面与介质隔离,介质通过时,不会引起阀门密封面的侵蚀。在全开或全闭时,球体和阀座的密封面与介质隔离,介质通过时,不会引起阀门密封面的侵蚀。
工作温度为+ 120°C至-196°C。球阀广泛用于极低温和低温应用,包括但不限于液化天然气,工业气体,精神和钢铁服务,采矿,制药,污水,水处理,二氧化碳注入/混合,冷却和石油/天然气应用。
二、连接端尺寸:①承插口尺寸按:ANSI B16.11;JB/T1751 ②)螺纹端尺寸按:ANSI B1.20.1;JB/T7306 ③对焊端尺寸按:ANSI B16.25;JB/T12224 ④)法兰端尺寸按:ANSI B16.5;JB79
三、阀门检查和试验: API 598;GB/T13927;JB/T9092
四、结构特征: 螺纹连接阀盖;两段式
五、材料按:ANSI/ASTM规定。
六、主体材料: A105;LF2;304(L);316(L);F347; F321;F51;Monel;20合金等