Mitundu ya Mapaipi Omwe Amayezedwa ndi Ma Electromagnetic Flowmeters

1. Mapepala a Rabala

1.1 Mphira Wachilengedwe

Rabala yachilengedwe ndi njira yotchuka yopangira mapaipi omwe amagwiritsidwa ntchito pomwe choyezeracho sichiwononga ndipo chili ndi kutentha kochepa. Chimapereka kukana kwabwino kwambiri kwa kukwawa, zomwe zimapangitsa kuti chikhale choyenera madzi omwe angakhale ndi tinthu tating'onoting'ono tomwe timapachikidwa, monga mitundu ina ya madzi otayira kapena matope okhala ndi zinthu zofewa zolimba. Mwachitsanzo, mu fakitale yotsukira zimbudzi, njira zoyambira komanso zotsukira nthawi zambiri zimaphatikizapo kuyenda kwa madzi otayira ndi zinyalala zosiyanasiyana. Mapaipi achilengedwe okhala ndi rabala amatha kupirira bwino kukangana komwe kumachitika chifukwa cha tinthuti pamene akugwirizana ndichoyezera kuyenda kwa magetsi.Mphira wachilengedwe umapereka malo osalala mkati, kuchepetsa kukana kwa kayendedwe ka madzi ndikuwonetsetsa kuti madziwo akuyezedwa molondola pogwiritsa ntchito choyezera kayendedwe ka madzi chamagetsi.

1.2 Mphira Wopangidwa (monga Neoprene)

Ma rabala opangidwa monga neoprene ali ndi kukana kwa mankhwala kowonjezereka poyerekeza ndi rabala wachilengedwe. Mapaipi okhala ndi neoprene ndi oyenera kuyeza madzi omwe amawononga pang'ono, monga ma asidi ena ofooka kapena alkali mkati mwa kuchuluka kwina. Mu ntchito zamafakitale komwe kuli mankhwala oyeretsera omwe amanyamulidwa m'mapaipi, mapaipi okhala ndi neoprene angagwiritsidwe ntchito limodzi ndizoyezera kuyenda kwa magetsi zamagetsi.Chingwe cha neoprene sichimangoteteza payipi ku kuukira kwa mankhwala komanso chimasunga umphumphu wa mphamvu yamagetsi yomwe imagwiritsidwa ntchito poyesa kuyenda kwa madzi, zomwe zimathandiza kudziwa molondola kuchuluka kwa madzi othamanga awa.

2. Mafelemu a Fluoropolymer

2.1 PTFE (Polytetrafluoroethylene)

PTFE imadziwika chifukwa cha kukana kwake mankhwala, chifukwa imatha kupirira mitundu yosiyanasiyana ya mankhwala owononga kwambiri, kuphatikizapo ma asidi amphamvu, maziko, ndi zinthu zowononga. Mapaipi okhala ndi PTFE amagwiritsidwa ntchito kwambiri mumakampani opanga mankhwala, kupanga mankhwala, ndi kupanga ma semiconductor. Mu fakitale ya mankhwala komwe mankhwala amphamvu monga sulfuric acid yokhazikika kapena hydrofluoric acid akusamutsidwa, electromagnetic flowmeter ikhoza kuyikidwa pa payipi yokhala ndi PTFE. Mzere wa PTFE umaonetsetsa kuti payipiyo isawonongeke ndi cholumikizira chowononga, ndipo mawonekedwe ake osayendetsa bwino komanso osasinthasintha samasokoneza mfundo yoyezera ma elekitiromagineti. Izi zimathandiza kuyeza molondola kayendedwe ka madzi ngakhale m'malo ovuta kwambiri a mankhwala.

2.2 FEP (Fluorinated Ethylene Propylene)

FEP ndi chinthu china chopangidwa ndi fluoropolymer. Chili ndi kukana kwa mankhwala kofanana ndi PTFE koma chili ndi ubwino wina pankhani ya kusinthasintha ndi kuwonekera bwino. Mapaipi okhala ndi FEP nthawi zambiri amagwiritsidwa ntchito poyang'ana momwe madzi amayendera komanso kuyeza molondola. Mwachitsanzo, m'machitidwe ena a mankhwala opangidwa ndi labotale kapena popanga zakumwa zoyera kwambiri mumakampani opanga mankhwala, mapaipi okhala ndi FEP amatha kugwirizanitsidwa ndizoyezera kuyenda kwa magetsiKuwonekera bwino kwa FEP kumathandiza ogwiritsa ntchito kuwona momwe madzi amayendera, pomwe choyezera kuyenda kwa magetsi chimapereka deta yolondola ya kuchuluka kwa madzi.

3. Mapepala a Ceramic

Mapaipi okhala ndi ceramic ndi oyenera kwambiri kugwiritsa ntchito omwe amafunikira kukana kutentha kwambiri komanso kukana kutopa kwambiri. Ma ceramic ali ndi malo osungunuka kwambiri ndipo amatha kusunga mphamvu zawo zamakaniko ndi zamakemikolo kutentha kwambiri. M'mafakitale monga kupanga magetsi, komwe kuli mpweya wotentha kapena matope otentha kwambiri, mapaipi okhala ndi ceramic angagwiritsidwe ntchito ndi ma electromagnetic flowmeters. Chipinda cha ceramic chimateteza payipi ku zotsatira zowononga za tinthu tating'onoting'ono ta liwiro lalikulu m'madzi, ndipo electromagnetic flowmeter imatha kuyeza molondola kuchuluka kwa madzi otentha awa. Ngakhale kuti ma ceramic ndi zinthu zosweka, kuyika bwino ndi kapangidwe ka payipi kumatha kutsimikizira kuti amagwira ntchito modalirika kwa nthawi yayitali limodzi ndi ma electromagnetic flowmeters.

Pomaliza,zoyezera kuyenda kwa magetsiingagwiritsidwe ntchito bwino ndi mapaipi okhala ndi mphira (yachilengedwe komanso yopangidwa), ma fluoropolymers (PTFE ndi FEP), ndi zoumba. Kusankha kwa zinthu zomangira kumadalira makhalidwe enieni a chinthu choyezedwa, monga kapangidwe kake ka mankhwala, kutentha, ndi kukhuthala, kuti zitsimikizire kuti kuyenda kwake kuli kolondola komanso kodalirika.