S / S tsaga harka ana la'akari da famfo galibi daga kwarara, kai, kaddarorin ruwa, shimfidar bututu da yanayin aiki. Ga mafita.

Liquid Properties, ciki har da ruwa matsakaici sunan, jiki Properties, sinadaran Properties da sauran kaddarorin, jiki Properties sun hada da zazzabi c yawa d, danko u, m barbashi diamita da gas abun ciki a cikin matsakaici, da dai sauransu, wanda unsa shugaban tsarin, da m cavitation saura Quantity lissafi da kuma dace famfo nau'in: sinadaran Properties, yafi yana nufin da sinadaran lalata da kuma guba na ruwa matsakaici, wanda shi ne wani muhimmin tushe don zaɓar tsaga. harka famfo abu da kuma irin nau'in hatimin shaft don zaɓar.

Gudun ruwa yana ɗaya daga cikin mahimman bayanan aikin aiki don zaɓin famfo, wanda ke da alaƙa kai tsaye da ƙarfin samarwa da ƙarfin isar da duk na'urar. Alal misali, a cikin tsarin tsari na Cibiyar Zane, ana iya ƙididdige yawan al'ada, mafi ƙanƙanta da matsakaicin adadin famfo. Lokacin zabar buɗaɗɗen famfo mai bakin karfe, ɗauki matsakaicin kwarara azaman tushe kuma la'akari da kwararar al'ada. Lokacin da babu matsakaicin kwarara, yawanci sau 1.1 ana iya ɗaukar kwararar al'ada azaman matsakaicin kwarara.

Shugaban da tsarin ke buƙata shine wani muhimmin bayanan aiki don zaɓin famfo. Gabaɗaya, yakamata a ƙara girman kai da 5% -10% gefe don zaɓi.

Dangane da tsari na na'urar, yanayin ƙasa, yanayin matakin ruwa, da yanayin aiki, ƙayyade zaɓi na kwance, tsaye da sauran nau'ikan famfo (bututun, mai karkatar da ruwa, nutsewa, rashin toshewa, sarrafa kai, kaya, da sauransu. ).

Yanayin shimfida bututun tsarin na'urar yana nufin tsayin isar ruwa, nisan isar da ruwa, da jagorar isar da ruwa, kamar mafi ƙarancin matakin ruwa a gefen tsotsa da mafi girman matakin ruwa a gefen fitarwa, da kuma wasu. bayanai kamar ƙayyadaddun bututun da tsayinsu, kayan aiki, ƙayyadaddun kayan aikin bututu, adadi, da sauransu, Domin aiwatar da lissafin shugaban taye-comb da cak na NPSH.

Akwai yanayi da yawa aiki, kamar ruwa aiki T, cikakken tururi P, tsotsa gefen matsa lamba PS (cikakke), fitarwa gefen akwati matsa lamba PZ, tsawo, yanayi zazzabi, ko aiki ne tsaka-tsaki ko ci gaba, da kuma matsayi na famfo. an gyara ko a'a. m.

Don famfo na ruwa tare da danko mafi girma fiye da 20mm2 / s (ko yawa fiye da 1000kg / m3), wajibi ne a canza fasalin fasalin famfo na gwaji na ruwa zuwa yanayin aikin danko (ko a ƙarƙashin yawa), musamman ma. aikin tsotsa da ikon shigarwa. Yi lissafi mai tsanani ko kwatance.

Ƙayyade lamba da ƙimar jiran aiki na S/S biyu tsotsa fanfuna. Gabaɗaya, famfo ɗaya kawai ake amfani da shi don aiki na yau da kullun, saboda babban famfo ɗaya yana daidai da ƙananan famfo guda biyu waɗanda ke aiki a layi daya (ma'ana ɗagawa ɗaya da gudana), kuma babban famfo yana da inganci sosai. Don ƙananan famfo, daga hangen nesa na ceton makamashi, yana da kyau a zabi babban famfo guda ɗaya maimakon ƙananan famfo guda biyu, amma a cikin yanayi masu zuwa, ana iya la'akari da famfo guda biyu a cikin layi daya: yawan gudu yana da girma, kuma famfo daya ba zai iya isa ba. wannan kwararan adadin. Don manyan fanfuna waɗanda ke buƙatar ƙimar jiran aiki 50%, ana iya canza ƙananan famfo guda biyu zuwa aiki, jiran aiki biyu (uku a duka).