AS 軸流式安全切斷閥AS axial on-off valve,軸流式:是指流體到控制區(qū)以前在閥的內(nèi)體和外體之間有一軸向?qū)ΨQ的流道 ,有呈流線型并均勻?qū)ΨQ的自 由流通路徑,大大降低了流體局部高速流、紊流、噴射流等的沖擊,且提高了閥門的穩(wěn)定性 .
公稱尺寸 Nominal size |
NPS8~48 |
公稱壓力 Nominal pressure |
Class600~2500 |
閥體材料 Body material |
A352 LCC,A350 LF2 |
執(zhí)行標(biāo)準(zhǔn) Standard |
IEC 60534 |
關(guān)斷時(shí)間 On-off time |
≤ 2S |
適用介質(zhì) Suitable medium |
天然氣、液化氣、石油及液化化工品 |
適用溫度 Suitable temperature |
-46℃~ +150℃ |
泄漏等級 Leakage |
符合 FCI-70-2,IEC 60534-4 VI 級 In accordace with FCI-70-2,IEC 60534-4 VI |
應(yīng) 用 Application |
用于長輸管線輸油、輸氣站、調(diào)壓站、用于緊急情況下的快速切斷 Long-distance pipeline oil, gas stations, pressure regulat- ing stations for export pressure quickly shut off |
執(zhí)行機(jī)構(gòu) Actuator |
氣動(dòng)、液壓彈簧復(fù)位執(zhí)行機(jī)構(gòu) Pneumatic,spring-hydraulic linkage |
@ 產(chǎn)品特點(diǎn) / Product feature:
軸流式:是指流體到控制區(qū)以前在閥的內(nèi)體和外體之間有一軸向?qū)ΨQ的流道 ,有呈流線型并均勻?qū)ΨQ的自 由流通路徑,大大降低了流體局部高速流、紊流、噴射流等的沖擊,且提高了閥門的穩(wěn)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、軸流式安全切斷閥在高集成壓力保護(hù)系統(tǒng)(HIPPS)中用于保護(hù)低壓力等級避免超壓,通過切斷壓力界面來 避免超壓。
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、軸流式,流通能力高且壓降低。
Axial flow type, high capacity and low pressure drop.
3、切斷時(shí)間快,≤36" 的閥門均可以 2 秒切斷,≤ 12" 的 閥門可在 1 秒內(nèi)切斷。 Fast shut off, the valves ≤36" shut off within 2s and ≤ 12" within 1s.
4、全壓力平衡閥芯。
Mechanically fully pressure balanced design.
5、在閥門全開位置主密封自動(dòng)保護(hù)盡可能的避免了高速介質(zhì)的沖刷破壞。另外,主密封在行程中不與其它 部件接觸。
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、線性的活塞式彈簧關(guān)執(zhí)行機(jī)構(gòu),通過多層彈簧關(guān)閉動(dòng)作具有很高的安全可靠性。
Rugged linear piston actuator, closing action by means of multiple parallel springs,have high
reliability.
7、活塞式彈簧關(guān)自驅(qū)動(dòng)式執(zhí)行機(jī)構(gòu)不需要任何外部動(dòng)力源,保證閥門動(dòng)作的安全性和可靠性,并且節(jié)能 環(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、軸流式切斷閥已在世界范圍內(nèi)得到認(rèn)可,廣泛 應(yīng)用于氣液場合,包括氣液的處理、輸送 、儲存 和分配過程。這些氣液流體可以從原油到成品 油, 從氣液比很高的多相流體到含砂量極高的 天然氣。
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.
@ 應(yīng)用范圍 / Application
典型 HIPPS 系統(tǒng)
Typical HIPPS system
典型 HIPPS 系統(tǒng)由以下三部分組成:
Typical HIPPS system includes the following three parts.
● 最終執(zhí)行元件 Final element
● 邏輯控制器 Logic solver● 檢測儀表 Sensors