Sistem Ilimin Daɗiyan Da Ake Amfani Da Sabu shi ne sistem ilimin daɗiyan. Yakin da shi ya fi yawa suna cikin gudanar da sabu da kuma ruwa da hawa, don haɗa sabun daɗiyan mai yawa daɗiyan.
Ruwa na sani da yake amfani a ilimin daɗiyan, amma ba zai iya amfani a duk abubuwan. Ruwa ba zai taimaka wajen ilimi daɗiyan kan tasiri, kuma ba zai iya amfani a lokacin daɗiyan. Don ilimi daɗiyan kan tasiri, sabu shine yanayi da ake amfani, domin ya bincike mafi girman daɗiyan da oxygen, wanda ya yi nasara a ilimi daɗiyan.
Sistem Ilimin Daɗiyan Da Ake Amfani Da Sabu an fadada shi don ilimi daɗiyan kan tasiri (light diesel oil/Heavy furnace oil). Sabu ake amfani don ilimi daɗiyan kan tasiri a tanki na sabu.
Sabu na nufin biyu, ta haka don ilimi daɗiyan kan tasiri a tanki na sabu, kuma don hirgin tanki daga babbar a cikin bayan da ake samun pipelines da suka duba a cikin tanki, kuma don hirgin tanki a lokacin daɗiyan kan tanki na gaba. Wannan yana taimakawa wajen ilimi daɗiyan kan tasiri daga tanki zuwa tanki na gaba.
Konsentirasabu shine muhimmiyar batu a wannan sistem. An fadada shi da tanki na konsentirasabu, wurare da ke saukar da sabu, valves na kontrollo, panel na kontrollo, producer na sabu, outlet na fitowa, k.s.a.
Tanki na Sistem – don inganta sabu, tanki yana iya zama cylindrical vertical ko horizontal type stainless steel.
Wurare da ke saukar da sabu – don fitowa sabu-concentrate a spray-water based on specific requirement. Wadannan wurare suka ci gaba da kusa da tsari, kuma suka faɗa da tsarin loss of pressure.
Sabu-chambers.
Automatic Sistem Ilimin Daɗiyan Da Ake Amfani Da Sabu mainly includes all areas where fuel oil storage tanks are built.
Apart from this, it covers all the sensitive areas of the power plant where hydrant system and spray system do not perform fairly.
A nan ne tunonin tsarin da za su iya taimaka don install Sistem Sabu:
Sistem sabu na fixe yana yi aikatau a taimakawa da fire detection system a cikin tanki. Sistem Sabu Automatic yana yi network pipe a cikin duk tanki na sabu.
Dukkan sistem yana bukatar a yi a taimakawa da NFPA-11 regulations.
Konsentirasabu shine muhimmiyar batu, kuma yana bukatar a yi 100 % AFFF type, kuma yana inganta a tanki na double of its capacity, kuma yana fitowa through a foam pump of capacity of 200 %.
Minimum effective capacity of each foam concentrate tank and foam pumps should be designed for the protection of one largest fuel oil tank at its design capacity for a minimum duration of 60 minutes.
Automatic foam protection system covers an area of oil storage tank and its surroundings. As fire detection system sense any smoke in the surroundings, automatic foam protection system starts working automatically.
Foam concentrate will be sucked by the 2 foam inductors of 100% capacity, one of motor driven and another of diesel engine driven pump.
Special attention shall be given for foam pumps material and the complete system should be designed as per the TAC norms.
The minimum effective capacity of foam concentrate tank should keep in consideration while designing and there should be an extra margin of 10 % over the calculated capacity.
The material used for making tanks shall be of carbon steel of Grade ‘B’ and there should be inner lining of 2 mm of FRP.
LDO tanks should be well equipped with foam proportioner.
Water required for foam system is supplied by hydrant system mains.
Supply line of oil tanks should be equipped with automatic solenoid at the upstream of foam proportioner.
In foam protection system, the network of pipelines has been done over the ground on RCC foundation.
Foam carrying pipelines should be of stainless steel.
For fixed roof type tanks, foam application rate should be 3% and foam solution shall be 6 lpm/sq.m.
Special components like non-return valves, strainers and isolation valves of pumps etc. should be used to avoid mixing of water with foam concentration.
Strainers should be used at the water inlet point so that raw impurities could be captured there and non-return valve in the pipelines avoids mixing of water with foam.
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