api機(jī)械密封沖洗方案-資料下載頁
2025-07-25 17:35本頁面
【正文】 re indicator ? Pressure switch ? Heat exchanger ? Level switch ? Piston pot eliminates nitrogen contact with barrier liquid ? Piston provides constant pressure ratio to seals (:1) Spring API 682 2nd Edition API 682 第二版New Piping Plans 新的沖洗方案 Barrier Fluid Temperature () 隔離流體溫度 ? Liquid barrier systems shall be designed such that that maximum temperature differential between the barrier fluid inlet and outlet immediately adjacent to the seal chamber is: ? 8 degree C for glycol /water or diesel barrier fluids。 and ? 16 degree C for mineral oil barrier fluid Plan 11 with Plan 53 ? Arrangement 3 may use Plan 11 amp。 53 ? Improved heat transfer ? Reverse pressure capability ? “Back to Back ” seals uses Plan 53 API 682 2nd Edition API 682 第二版New Piping Plans 新的沖洗方案 Plan 72 () ? Arrangement 2, w/ Containment Seal (CS) ? Dual UnPressurised (Tandem) Seals ? Dryrunning secondary containment seal ? Low pressure nitrogen sweep (purge) ? Sweeps primary leakage to collection system ? Dilutes primary leakage to lower emission levels ? Used in conjunction with Plan 75 or 76 ?CSV: containment seal vent ?CSD: containment seal Drain ?GBI: gas buffer inlet ?FIL: coalescing filter API 682 2nd Edition API 682 第二版New Piping Plans 新的沖洗方案 Plan 74 () ? Arrangement 3, Noncontacting Seals (NC) ? Dual Pressurised (Double) Gas Barrier Seals ? Nitrogen gas barrier ? 2 bar (2530 psi) above seal chamber pressure ? Zero emissions ? Essentially a T2800 panel ? GBI: gas buffer inlet ? GBO: gas buffer outlet (NC) (used only to depressurize) API 682 2nd Edition API 682 第二版New Piping Plans 新的沖洗方案 Plan 75 () ? Arrangement 2, w/ Containment Seal (CS) ? Dual UnPressurised (Tandem) Seals ? Dryrunning secondary ? Condensate collection reservoir () ? Used when primary seal leakage may condense ( does not pletely vaporize) ? May be used in conjunction with Plan 72 API 682 2nd Edition API 682 第二版New Piping Plans 新的沖洗方案 Plan 76 () ? Arrangement 2, w/ Containment Seal (CS) ? Dual UnPressurised Seals (Dryrunning secondary) ? Primary leakage routed to flare or vent ? Used when primary seal leakage will not condense (pletely vaporizes) ? Essentially a 48SC or 28LD panel leakage detection ? May be used in conjunction with Plan 72 API 682 2nd Edition API 682 第二版 New Piping Plans 新的沖洗方案
環(huán)評(píng)公示相關(guān)推薦
鄂ICP備17016276號(hào)-1