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工業安全 |
| DIERS 緊急釋壓系統-設計實例 |
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維美通訊曾介紹 DIERS
(Design Institute for Emergency Relief Systems)
功能，特舉一實例以說明如何實際運用。 |
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◎ |
設計緊急釋壓閥之大小(the
required area for the relief valve) - 讓您的製程更安全! |
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主要設計規範： |
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釋壓閥設計壓力: 100
psig |
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Overpressure (%): 20 % |
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液位 : 95% of inside
diameter |
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排放模式= HEM |
(Homogeneous Equilibrium Model) |
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容器模式= Churn
turbulent model |
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火災模式= OSHA 1910.106 |
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Calculated nozzle area |
: 0.148386 ft2 |
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Selected valve type |
: 8T10 |
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Nearest actual nozzle area |
: 0.180556 ft2 |
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The following
calculation is base on vent area 0.180556 ft2. |
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Calculated vent rate (lb/h) |
= 9.6535e+005 |
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Calc critical press (psia) |
= 105.6 |
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Nozzle inlet vapor mass fraction |
= 0.0255067 |
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Device inlet density (lb/ft3) |
= 28.363 |
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Nozzle inlet vapor vol. fraction |
= 0.473835 |
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以上為部份重要結果，對詳細之細節有興趣者請洽本公司 |
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[維美通訊] |
