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Common Pumping Liquids
Madzi oyera
Kubweretsa ma curve onse oyesa pampu pamalo amodzi, mawonekedwe a pampu amatengera madzi omveka bwino pa kutentha kozungulira (nthawi zambiri 15 ℃) ndi kachulukidwe ka 1000 kg/m³.
Zomwe zimagwiritsidwa ntchito kwambiri pomanga madzi oyera ndizomanga zitsulo zotayidwa kapena chitsulo chopangidwa ndi chitsulo chopangidwa ndi mkuwa, Mukapopera madzi oyera, kapena madzi omveka bwino ngati osalowerera ndale ndi mphamvu yokoka ya 1 popanda zolimba zomwe zilipo,pomaliza zopoperandi yopingasamapampu apakati apakatiamagwiritsidwa ntchito kwambiri. Pamene mitu yotulutsa kwambiri ikufunika, mapampu amtundu wa multistage amagwiritsidwa ntchito.
Opanga akamachepera panyumba yapampu, mayunitsi oyima amitundu yosakanikirana, axial kapena turbine pampu amagwiritsidwa ntchito.
Madzi a m'nyanja ngati malo owononga
Madzi a m'nyanja ali ndi mchere wambiri pafupifupi 25 g/ℓ. Pafupifupi 75% ya mcherewo ndi sodium chloride NaCl. Mtengo wa pH wa madzi a m'nyanja nthawi zambiri umakhala pakati pa 7,5 ndi 8,3. Mogwirizana ndi mlengalenga, mpweya wa 15 ℃ ndi pafupifupi 8 mg/ℓ.
Madzi a m'nyanja osungunuka
Nthawi zina, madzi a m'nyanja amachotsedwa ndi mankhwala kapena physic-ally. Chifukwa cha izi, kuuma mtima kumachepa kwambiri. Pankhani ya degasification ya mankhwala, ziyenera kudziwika kuti kuchotsa mpweya kumatenga nthawi. Chifukwa chake, ndikofunikira kwambiri kuti ntchito yochotsa mpweya, mwachitsanzo, kuchotsa mpweya, kumalizidwa mokwanira madzi a m'nyanja asanalowe mu mpope.
Kusamala kuyenera kuchitidwa pogwira ntchito - kutulutsa mpweya kumatha kuchitika kudzera mumlengalenga. Ngakhale kuti ma inrushes ali ndi nthawi yochepa, kuwonongeka kwa zipangizo kumatha kuchitika mofulumira nthawi zina ngati kukhalapo kwa okosijeni sikuganiziridwa pamene zipangizo zasankhidwa. Ngati mpweya wa okosijeni sungathe kuchotsedwa panthawi ya ntchito ya mpope, ziyenera kuganiziridwa kuti madzi a m'nyanja ali ndi mpweya.
Madzi amchere
Mawu akuti 'brackish water' amatanthauza madzi abwino omwe ali ndi madzi a m'nyanja. Pankhani yosankha zinthu, malangizo omwewo amagwiranso ntchito pamayendedwe amadzi amchere ngati madzi a m'nyanja. Kuphatikiza apo, madzi amchere nthawi zambiri amakhala ndi ammonia ndi/kapena hydrogen sulphide. Ngakhale kuchepa kwa hydrogen sulfide, mwachitsanzo, m'dera la ma milligrams ochepa pa lita imodzi, kumayambitsa kuwonjezereka kwamphamvu.
Madzi a m'nyanja kuchokera pansi pa nthaka
Madzi amchere ochokera pansi pa nthaka nthawi zambiri amakhala ndi mchere wambiri kuposa madzi a m'nyanja, nthawi zambiri amakhala pafupifupi 30%, mwachitsanzo, pansi pa malire a kusungunuka. Apanso, mchere wamba ndiwo chigawo chachikulu. Mtengo wa PH nthawi zambiri umakhala wotsika (mpaka pafupifupi 4), mwachitsanzo, madzi amakhala acidous. Ngakhale kuti mpweya wa okosijeni ndi wotsika kwambiri kapena kulibe, zomwe zili mu H₂S zimatha kukhala mamiligalamu mazana angapo pa lita.
Mayankho amchere otere okhala ndi H₂S amawononga kwambiri ndipo amayitanitsa zida zapadera.
Chifukwa cha kuchuluka kwa mchere komanso kutengera momwe amagwirira ntchito, munthu ayenera kuyembekezera kugwa kwa mchere wambiri. Zikatero, zotsutsana zoyenera ziyenera kuchitidwa pokhudzana ndi mapangidwe, ntchito ndi kusankha zinthu.
Zimbiri m'madzi a m'nyanja
Zipangizo zomwe zimagwiritsidwa ntchito sizimangosonyeza kulimba kokwanira ku dzimbiri, komanso zolimbana ndi dzimbiri zapanyumba, makamaka zibowo ndi ming'alu. Zochitika za dzimbiri zotere zimachitika makamaka ndi ma ferro alloys (zitsulo zosapanga dzimbiri). Mapampu otchedwa 'standby', omwe amangogwiritsidwa ntchito pafupipafupi, amakhala pachiwopsezo choyima; kusefukira ndi madzi atsopano nthawi yotseka kapena kuyambitsa nthawi ndi nthawi kumawonedwa kukhala kopindulitsa.
Zosiyanasiyanapompa madzi a m'nyanjazigawozi ziyenera kupangidwa kuchokera ku zipangizo zamtundu womwewo kuti zisawonongeke galvanic dzimbiri. Kusiyanitsa komwe kungathe pakati pa zipangizo zapayekha ndi kukhala otsika momwe zingathere. Komabe, ngati zipangizo zosiyana ziyenera kugwiritsidwa ntchito pazifukwa zopangidwira, pamwamba pa chitsulo chochepa kwambiri chokhudzana ndi madzi chiyenera kukhala chachikulu poyerekeza ndi chitsulo cholemekezeka. Chithunzi 5 chimapereka chidziwitso cha kuopsa kwa dzimbiri la galvanic pamene zida zamitundu yosiyanasiyana zikuphatikizidwa.
Kuthamanga kwambiri kungayambitse kukokoloka kwa nthaka. Zotsatira zake zimakhala zovuta kwambiri, zimakhala zachiwawa kwambiri, komanso zimakweza kuthamanga kwake. Pamene kuchuluka kwa madzi kumakhudza khalidwe la zitsulo zosapanga dzimbiri ndi ma aloyi a faifi tambala ku digiri yaing'ono chabe, malowa amasinthidwa pomwe zida zachitsulo zosapangana ndi ma aloyi amkuwa zimakhudzidwa. Chithunzi 6 chimapereka chidziwitso chokhudza momwe mayendetsedwe amayendera. Kulingalira koyenera kuyenera kuperekedwa potero ngati sing'angayo ili ndi okosijeni kapena H₂S. Kuchuluka kwa H₂S kumakonda kusiya kukhalapo kwa mpweya; Zikatero, sing'angayo imakhala ndi asidi pang'ono, mpaka pH ya 4.
Khalidwe lakuthupi
Gome 1 limapanga malingaliro a zida zopopera kapena kuphatikiza kwake. Pokhapokha zitanenedwa mwanjira ina, mfundo zotsatirazi zikugwira ntchito pamadzi am'nyanja opanda H₂S iliyonse.
Chitsulo chosatsekedwa ndi chitsulo chosungunuka
Chitsulo chosakanizidwa ndi chosayenera kwa madzi a m'nyanja, pokhapokha ngati chiperekedwa ndi chophimba choyenera chotetezera. Chitsulo chotayira chimangogwiritsidwa ntchito pa liwiro lotsika (lotheka popanga ma casings); Pankhaniyi, chitetezo chokwanira cha cathodic cha ena amkati chiyenera kugwiritsidwa ntchito.
Zithunzi za Austenitic Ni-casting
Ni-Resist 1 ndi 2 ndi oyenera ma velocities apakati (mpaka pafupifupi 20 m/s).
Galvanic Corrosion M'madzi a Nyanja Pa 5-30 ℃
Nthawi yotumiza: Mar-11-2025