AS 轴【zhóu】流式安全切【qiē】断阀AS axial on-off valve,轴流式:是指流体到【dào】控制区以【yǐ】前在阀的内体和外体之间有一轴向对称的流道 ,有呈流线【xiàn】型【xíng】并均匀【yún】对【duì】称的自 由流【liú】通路径【jìng】,大大降低了【le】流【liú】体局部高速【sù】流、紊【wěn】流、喷【pēn】射流【liú】等的冲击,且提高了阀门的稳【wěn】定性 .
公称尺寸 Nominal size |
NPS8~48 |
公称压力 Nominal pressure |
Class600~2500 |
阀体材料 Body material |
A352 LCC,A350 LF2 |
执行标准 Standard |
IEC 60534 |
关断时间 On-off time |
≤ 2S |
适用介质 Suitable medium |
天然气、液化气、石油及液化化工品 |
适用温度 Suitable temperature |
-46℃~ +150℃ |
泄漏等级 Leakage |
符合 FCI-9-21,IEC 60534-4 VI 级 In accordace with FCI-9-21,IEC 60534-4 VI |
应 用 Application |
用于长输管线输油、输气站、调压站、用于紧急情况下的快速切断 Long-distance pipeline oil, gas stations, pressure regulat- ing stations for export pressure quickly shut off |
执行机构 Actuator |
气动、液压弹簧复位执行机构 Pneumatic,spring-hydraulic linkage |
@ 产品特【tè】点 / Product feature:
轴流【liú】式:是指【zhǐ】流体到【dào】控制区以前在阀的内体和【hé】外体【tǐ】之间有一【yī】轴向对称的流道 ,有呈流【liú】线型并均匀对称的自 由流通【tōng】路径,大大降低【dī】了流【liú】体局【jú】部高【gāo】速流、紊【wěn】流、喷射流【liú】等的冲击【jī】,且提高了阀门的【de】稳定性 .
“Axial flow”describes the in-line symmetrical flow path between the valve inner and outer body
before the flow reaches the trim zone,with the free flow path was streamlined and symmetrical,
reducing the local high speed flow of the fluid,turbulence flow jet stream, such as shock, and to
improve the stability of the valve.
1、轴流式安全切断阀【fá】在高集成【chéng】压力【lì】保护系【xì】统【tǒng】(HIPPS)中用于保护低压力【lì】等级避【bì】免超压,通过切断压力界【jiè】面来 避免超压【yā】。
Axial on-off valves in HIPPS applications high integrity pressure protecting systems (HIPPS)
are used to protect lower rated downstream sections from overpressure, by isolating these
sections from the source of the overpressure.
2、轴流式,流通能力高且压降低。
Axial flow type, high capacity and low pressure drop.
3、切断【duàn】时间快,≤36" 的【de】阀门均【jun1】可以 2 秒切断【duàn】,≤ 12" 的【de】 阀门【mén】可在 1 秒内切断。 Fast shut off, the valves ≤36" shut off within 2s and ≤ 12" within 1s.
4、全压力平衡阀芯。
Mechanically fully pressure balanced design.
5、在阀门全开位置主【zhǔ】密封【fēng】自动保护尽【jìn】可能【néng】的避免【miǎn】了高速介质【zhì】的冲刷破坏。另外,主密【mì】封【fēng】在行程中不【bú】与其它 部件接触。
Main seal is protected from erosional velocities in the open position. Furthermore the main seal
is not in contact with other parts during the stroke of the valve.
6、线【xiàn】性的活【huó】塞式弹【dàn】簧关执行机构,通【tōng】过多层弹簧关闭动【dòng】作具有很高的安全可靠【kào】性。
Rugged linear piston actuator, closing action by means of multiple parallel springs,have high
reliability.
7、活塞式弹【dàn】簧关自驱动【dòng】式执【zhí】行机构不【bú】需要任何外部动力源,保证阀门动作【zuò】的【de】安全性和可靠性,并且节能【néng】 环【huán】保。
Self-contained piston actuator with failing close function selected for this project to ensure
valve action safety and reliability, furthermore energy saving and environmental protection.
8、轴流式切断阀已在世界范围【wéi】内得【dé】到【dào】认可,广泛 应【yīng】用于气液【yè】场合,包括气【qì】液的处理【lǐ】、输【shū】送 、储【chǔ】存 和分配过程。这些气液流体可以从原油到【dào】成品 油, 从气液【yè】比【bǐ】很高的多相流体到含砂量极高的 天然气【qì】。
Axial on-off valves combine high quality engineering with a thorough understanding of the needs of the oil and gas produc-tion, process industries and companies involved with transmission, distribution and storage of fluids.
@ 应用【yòng】范围【wéi】 / Application
典型 HIPPS 系统
Typical HIPPS system
典型 HIPPS 系统由以下三部分组成:
Typical HIPPS system includes the following three parts.
● 最终执行【háng】元件 Final element
● 逻辑控制【zhì】器 Logic solver● 检测仪表【biǎo】 Sensors