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FIRE FIGHTING - dry pipe valve operation

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Ahmed Khamis

في بداية الحريق ترتفتع درجة حرارة المكان ويتم تمدد السائل داخل الرشاش لتنكسر زجاج الرشاش ويبدأ الغاز المضغموط في الخروج ليقل الضغط يعمل الضاغط لتعويض الفقدان في ضغط الغاز ولكنه يكون غير كافي وتعمل quick open device علي مساعدة dry pipe valve في سرعة الاستجابه ليفتح المحبس وتمر الميياه في اتجاه الرشاش وتبدأ الجوكي في العمل لتعوض الانخفاض في الضغط لكن تكون غير كافيه فتعمل المضخه الرئيسيه في العمل وبذلك يكون نظام الاطفاء الجاف تم تنشبطه بكل مكوناته

posted by slabinskaw6


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