Installation Methods Rau Pipeline Pumps

Tshem tawm Throttling
Qhov no yog txoj hauv kev zoo tshaj plaws thiab pheej yig ntawm kev khiav dej num rau qis - thiab nruab nrab - tshwj xeeb - cov twj nrawm. Feem ntau, nws siv yog txwv rau cov twj tso kua mis hauv cov - nrawm nrawm. Ib feem kaw txhua hom valve nyob rau hauv cov kab tawm tsub kom lub taub hau system; yog li ntawd, qhov system taub hau nkhaus cuam tshuam lub twj tso kua mis taub hau nkhaus ntawm tus nqi qis dua. Discharge throttling hloov qhov chaw khiav hauj lwm mus rau qib qis dua thiab ua rau lub zog poob thoob plaws lub throttle valve. Qhov no tuaj yeem yog qhov tseem ceeb rau kev teeb tsa lub twj tso kua mis loj, qhov twg muaj peev txheej ntau dua - txoj kev tswj hwm hnyav yuav ua pov thawj zoo dua kev lag luam. Throttling rau lub kaw-tawm taw tes tuaj yeem ua rau cov kua dej ntau dhau hauv lub twj tso kua mis; Qhov no tuaj yeem txo tau los ntawm kev siv lub bypass kom muaj qhov tsim nyog tsawg kawg nkaus los yog los ntawm kev siv lwm txoj kev tswj hwm. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov twj uas tau hais ua ntej uas tuav cov dej kub lossis cov kua dej tsis haum.

Suction Throttling
Yog tias muaj NPSH txaus, kev txuag hluav taws xob tuaj yeem ua tiav los ntawm throttling txoj kab nqus. Suction throttling feem ntau yog siv rau lub dav hlau cav roj twj tso kua mis vim tso tawm throttling yuav ua rau cov kua overheat los yog vaporize. Ntawm tus nqi qis heev, lub impellers ntawm cov twj tso kua mis tsuas yog ib feem ntawm cov kua; yog li ntawd, lub hwj chim tawm tswv yim thiab qhov kub thiab txias yog kwv yees li ib -thib peb ntawm cov uas tau pom nrog lub impeller puv puv nyob rau hauv qhov kev tso tawm throttling. Tus nqi ntws ntawm cov twj condensate feem ntau yog tswj los ntawm kev kho qhov tob tob, uas yog qhov ua haujlwm sib npaug ntawm qhov nqus throttling. Cov qauv tsim tshwj xeeb tuaj yeem txo qhov kev puas tsuaj cavitation hauv cov twj tso kua mis mus rau theem tsis txaus ntseeg, txawm hais tias lub zog muaj feem cuam tshuam kuj tsawg.

Txoj Cai Bypass
Tag nrho los yog ib feem ntawm cov dej ntws tuaj yeem hloov tau los ntawm cov twj tso kua mis tawm los ntawm cov yeeb nkab bypass rov qab mus rau lub twj tso kua mis los yog lwm qhov chaw tsim nyog. Txoj kab bypass tuaj yeem nruab nrog ib lossis ntau qhov ntws tawm thiab cov tswj kom tsim nyog. Metering bypasses feem ntau yog siv los txo tus nqi ntws ntawm boiler pub twj, feem ntau los tiv thaiv overheating. Kev txuag hluav taws xob tseem ceeb tuaj yeem pom tau los ntawm kev hla dhau qhov ntws ntau dhau - xws li nrog cov twj tso kua mis - tsis yog siv cov throttling.

Txoj Cai Ceev
Kev tswj cov dej ntws los ntawm kev kho qhov nrawm txo qis cov kev xav tau ntawm lub zog thiab tshem tawm cov teeb meem overheating cuam tshuam nrog rau lwm txoj hauv kev khiav dej num. Chav turbines thiab cov tshuab hluav taws xob sab hauv tuaj yeem yooj yim ua raws li kev tswj hwm ceev ntawm tus nqi ntxiv. Ntau yam khoom siv, sib nqus, thiab hydraulic sib txawv - ceev tsav, nrog rau DC thiab AC hloov pauv - cov motors ceev, tuaj yeem siv los tswj kev sib hloov ceev. Hloov pauv- cov motors ceev feem ntau kim dhau; yog li ntawd, cov kev cai ntawm cov hniav kho tau tsuas yog ua haujlwm thaum kev txheeb xyuas nyiaj txiag pom zoo rau cov ntawv thov tshwj xeeb.
Cov kev tshawb fawb ntawm adjustable phau ntawv vanes ntsia upstream ntawm lub impeller tau pom tias txoj kev no muaj txiaj ntsig zoo rau kev tswj lub twj tso kua mis ntawm qhov ceev ntawm $n_s=5700$ (2.086). Lub vanes tsim qhov zoo ua ntej- kev sib hloov, yog li txo lub taub hau, ntws tus nqi, thiab kev ua haujlwm zoo, txawm hais tias qib kev tswj hwm tau ua tiav los ntawm cov vanes ib leeg yog qhov txwv. Adjustable qhov hluav taws xob diffuser vanes tau ua tiav nyob rau hauv cov twj loj loj - cov chav tsev khaws cia siv rau kev tsim hluav taws xob hauv Tebchaws Europe. Cov twj tso kua mis nrog qhov sib txawv -pitch blades kuj tau tshawb xyuas tiav; cov no tso cai rau ntau yam kev hloov pauv hloov pauv thaum tuav lub taub hau tas li thiab ua rau muaj kev poob qis. Txawm li cas los xij, cov txheej txheem no yog qhov nyuaj heev thiab raug nqi, uas txwv tsis pub lawv cov kev siv tau zoo.