01_pumpe-dio1 (2)
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PUMPEPUMPE
Općenito o pumpamaOpćenito o pumpamaBrodski pomoćni strojevi, Dio 1.
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Općenito o pumpama
► Pumpe su najrasprostranjeniji strojevi na brodovima
► Pumpa je stroj u kojemu se mehanička energija pogona pretvara u hidrauličku energiju pumpanog fluida
► Namjena pumpe je pumpanje najrazličitijih fluida, poput destilata, kaljuže, viskoznih tekućina, agresivnih tekućina, morske vode do 80 C, slatke vode do 200 C, itd.
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Općenito o pumpama
► Zahtjevi za pumpe postavljaju se kao i za druge strojeve na brodovima:
sigurnost rada kod bočnog i uzdužnog nagiba,
ekonomičnost
mala masa i dimenzije
sposobnost trajnog pogona bez nadzora
prilagodljivost automatici, itd.
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Općenito o pumpama
► Funkcije pumpi na brodu:
rad u sistemima glavnog pogonskog stroja i pomoćnih strojeva
izbacivanje vode iz broda i usisavanje u brod (balast, rashlada i kaljuža)
osiguravanje životnih uvjeta na brodu (slatka voda, sanitarije, klimatizacija)
manipulacija teretom (pumpe tereta) sigurnost broda (požarne, havarijske)
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Općenito o pumpama
Podjela brodskih pumpi - prema namjeni► za rad glavnih porivnih (propulzijskih) strojeva,
kotlova i kondenzatora rashladne napojne, dobavne za podmazivanje
► za sigurnost broda kaljužne vatrogasne
► za brodsku službu balastne teretne (za ukrcaj i iskrcaj)
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Općenito o pumpama
► za upravljanje brodom hidrauličke pumpe (kormilarski stroj,
hidraulički sustavi broda)
► za potrebe posade pumpe pitke vode pumpe sanitarne vode pumpe evaporatora
Podjela brodskih pumpi - prema namjeni
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Općenito o pumpama
Podjela brodskih pumpi - prema dobavi► velikog protoka
rashladne balastne teretne
► malog protoka napojne pitke vode sanitarne vode
► najmanjeg protoka dozirne pumpe lubrikatori
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Općenito o pumpama
► visokog tlaka napojne vatrogasne teretne
► niskog tlaka kaljužne balastne rashladne
Podjela brodskih pumpi - prema tlaku (naporu)
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Općenito o pumpama
Podjela brodskih pumpi - prema izvedbi
► Volumetrijske klipne i stapne vijčane zupčaste membranske ...
► Dinamičke radijalne (centrifugalne) dijagonalne aksijalne
► Mlazne ejektori
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Općenito o pumpama
► Centrifugalne pumpe rashladne cirkulacijske balastne požarne kaljužne teretne napojne dobavne
Primjena pojedinih izvedbi na brodu
► Vijčane i zupčaste pumpe• za podmazivanje• dobavu goriva• transfer goriva i ulja
► Stapne pumpe• kaljužne• požarne• za dobavu i transfer goriva• hidrauličke
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Općenito o pumpama
Stapne Centrifugalne
Protok Diskontinuiran Kontinuiran
Tlak (napor) Vrlo visok Nizak (za 1 stupanj)
Ovisnost protoka o tlaku Zanemariva Velika
Mogućnost usisa Samousisne Potrebna pomoć
Usporedba volumetrijskih (stapnih) i dinamičkih (centrifugalnih) pumpi
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Općenito o pumpama
► izravno od glavnog pogonskog stroja
► elektromotorom
► parnom turbinom
► parnim stapnim strojem
► izravno od parnog cilindra parnog stroja
► ručni
Pogoni pumpi
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama
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Općenito o pumpama