Muyenera kukhazikitsa valavu, koma kusankha mtundu wolakwika kungapangitse kuti pakhale maola ambiri ogwirira ntchito. Kukonza kosavuta kungakukakamizeni kudula mapaipi ndikutseka makina onse.

Vavu ya mpira wa union iwiri ikhoza kuchotsedwa kwathunthu mu payipi kuti ikonzedwe, pomwe vavu ya union imodzi singathe. Izi zimapangitsa kapangidwe ka union iwiri kukhala kabwino kwambiri pakukonza ndi ntchito yanthawi yayitali.

Kutha kukonza valavu mosavuta ndi chinthu chachikulu pa mtengo wonse wa umwini. Ndi nkhani yofunika kwambiri yomwe ndimakambirana ndi ogwira nawo ntchito monga Budi, woyang'anira zogula ku Indonesia. Makasitomala ake, makamaka omwe ali m'mafakitale, sangakwanitse kulipira nthawi yayitali yogwira ntchito. Ayenera kukhala okhoza kusinthana ma seal a valavu kapena thupi lonse la valavu mumphindi zochepa, osati maola ambiri. Kumvetsetsa kusiyana kwa makina pakati pa mapangidwe a single ndi double union kudzakuthandizani kusankha valavu yomwe imakupulumutsirani nthawi, ndalama, komanso mavuto akuluakulu omwe amabwera chifukwa cha vutoli.

Kodi pali kusiyana kotani pakati pa valavu ya mpira umodzi ndi valavu ya mpira iwiri?

Mukuona ma valve awiri omwe amawoneka ofanana koma ali ndi mayina ndi mitengo yosiyana. Izi zimakupangitsani kudzifunsa ngati njira yotsika mtengo ya single union ndi "yokwanira" pa ntchito yanu.

Chigwirizano chawiri chimakhala ndi zolumikizira za ulusi kumapeto onse awiri, zomwe zimapangitsa kuti zichotsedwe kwathunthu. Chigwirizano chimodzi chimakhala ndi cholumikizira chimodzi, zomwe zikutanthauza kuti mbali imodzi imakhazikika kosatha, nthawi zambiri ndi simenti yosungunulira.

Taganizirani izi ngati kukonza tayala la galimoto. Vavu ya union iwiri ili ngati gudumu logwiridwa ndi lug nati; mutha kuchotsa mosavuta gudumu lonse kuti mulikonze. Vavu ya union imodzi ili ngati gudumu lomwe limalumikizidwa ku axle mbali imodzi; simungathe kulichotsa kuti ligwiritsidwe ntchito. Mutha kungodula mbali imodzi ndikuyichotsa. Ngati thupi la valavu lalephera kapena muyenera kusintha zomangira,mgwirizano wapawiriKapangidwe kake ndi kabwino kwambiri. Opanga ma Budi amagwiritsa ntchito ma valve awiri okha pa ntchito zofunika kwambiri chifukwa amatha kusintha zonse mkati mwa mphindi zosakwana zisanu popanda kudula chitoliro chimodzi. Ndalama zochepa zowonjezera zomwe zimalipidwa pasadakhale zimalipira zokha kukonza koyamba komwe kumafunika.

Kodi kusiyana pakati pa valavu imodzi ndi valavu iwiri ndi kotani?

Mukamva mawu monga “valavu imodzi” ndi “valavu iwiri” ndipo mumasokonezeka. Mumada nkhawa kuti mwina mukumvetsa molakwika zofunikira za polojekiti, zomwe zimapangitsa kuti maoda olakwika achitike.

"Vavu imodzi" nthawi zambiri imatanthauza valavu yosavuta, yokhala ndi chidutswa chimodzi yopanda ma unions. "Vavu iwiri" nthawi zambiri imamasuliridwa kuti "valavu iwiri ya union," yomwe ndi gawo limodzi la valavu lomwe lili ndi ma union awiri.

Mawu oti “valavu imodzi” m'njira yosavuta nthawi zambiri amakhala “waung'ono” kapenavalavu ya mpira umodziNdi chitoliro chotsekedwa chomwe chimamatiridwa mwachindunji mu payipi. Ndi chotsika mtengo komanso chosavuta, koma ngati chalephera, muyenera kuchidula. "Vavu iwiri" kapena "valavu yogwirizanitsa kawiri"Amatanthauza chinthu chathu cha ngwazi: gawo la magawo atatu (malekezero awiri a union ndi thupi lalikulu) lomwe limalola kuchotsa mosavuta. Ndikofunikira kuti tisasokoneze izi ndi kukhazikitsa "ma block awiri", komwe kumaphatikizapo kugwiritsa ntchito ma valve awiri osiyana, apadera kuti azitha kudzipatula. Pa 99% ya ntchito zamadzi, valavu imodzi ya "union awiri" imapereka mgwirizano wabwino kwambiri wotseka bwino komanso wosavuta kugwira ntchito. Ndi muyezo womwe tikupangira ku Pntek pa kukhazikitsa kulikonse kwabwino.

Kuyerekeza kwa Kugwira Ntchito kwa Valavu

Kodi pali kusiyana kotani pakati pa valavu ya mpira ya mtundu 1 ndi mtundu 2?

Mukuyang'ana pulani yakale kapena pepala la zofotokozera za mpikisano ndipo mukuwona “Vavu ya Mtundu 1″ kapena “Mtundu 2″”. Mawu akale awa amabweretsa chisokonezo ndipo zimapangitsa kuti zikhale zovuta kufananiza ndi zinthu zamakono.

Ili ndi liwu lakale. “Mtundu 1” nthawi zambiri umatanthauza kapangidwe ka valavu yoyambira, yokhala ndi chidutswa chimodzi. “Mtundu 2” umatanthauza kapangidwe katsopano komwe kamakhala ndi magwiridwe antchito abwino, komwe kanasanduka mavalavu enieni a mpira wa union masiku ano.

Taganizirani ngati galimoto ya "Mtundu 1" kukhala Model T ndi "Mtundu 2" kukhala galimoto yamakono. Malingaliro ake ndi ofanana, koma ukadaulo ndi kapangidwe kake ndi zosiyana kwambiri. Zaka makumi angapo zapitazo, makampaniwa adagwiritsa ntchito mawu awa kusiyanitsa mapangidwe a ma valve a mpira. Masiku ano, mawuwa ndi akale kwambiri, koma amatha kuwonekerabe pamapulani akale. Ndikaona izi, ndimafotokoza kwa ogwirizana nawo monga Budi kuti Pntek yathuma valve a mpira wa mgwirizano weniweniNdi kusintha kwamakono kwa lingaliro la "Mtundu wa 2". Zapangidwa kuyambira pansi kuti zikhale zosavuta kusintha mipando ndi zisindikizo komanso kuchotsa mzere. Nthawi zonse muyenera kusankha "valavu yeniyeni ya mpira" kuti muwonetsetse kuti mukupeza chinthu chamakono, chogwira ntchito mokwanira, osati kapangidwe kakale kuchokera pa pepala lakale la zaka makumi ambiri.

Kodi kusiyana pakati pa ma valve a DPE ndi SPE mpira ndi kotani?

Mumawerenga pepala laukadaulo lomwe limatchula mipando ya DPE kapena SPE. Ma chidule awa ndi osokoneza, ndipo mukuopa kuti kusankha kolakwika kungayambitse vuto lalikulu pamavuto omwe mukukumana nawo.

SPE (Single Piston Effect) ndi DPE (Double Piston Effect) zimatanthauza momwe mipando ya mavavu imagwirira ntchito popanikizika valavu ikatsekedwa. SPE ndiye muyezo wa mavavu a PVC, chifukwa imatulutsa mpweya wokwanira wokha motetezeka.

Izi zimakhala zaukadaulo, koma lingaliroli ndi lofunika kwambiri pa chitetezo. Mu valavu yotsekedwa, nthawi zina kupanikizika kumatha kutsekeredwa m'mimba mwa thupi.

• SPE (Chikoka cha Piston Chimodzi):Uwu ndiye muyezo wa makampani opanga ma valve a mpira wa PVC omwe amagwiritsidwa ntchito nthawi zambiri.Mpando wa SPEimatseka kupsinjika kuchokera kumbali yakumtunda. Komabe, ngati kupsinjika kukukulirakuliramkatiThupi la valavu, limatha kusuntha bwino mpando wotsikira ndi kutulutsa mpweya. Ndi kapangidwe kake kodzipumitsa.
• DPE (Zotsatira za Piston ziwiri): A Mpando wa DPEimatha kutseka motsutsana ndi kukakamizidwa ndizonse ziwirimbali. Izi zikutanthauza kuti imatha kugwira kupanikizika m'bowo la thupi, zomwe zingakhale zoopsa ngati zikuwonjezeka chifukwa cha kutentha kwakukulu. Kapangidwe kameneka ndi ka ntchito zapadera ndipo kamafuna njira yosiyana yochepetsera bowo la thupi.

Pa ntchito zonse zamadzi wamba, monga zomwe makasitomala a Budi ali nazo, kapangidwe ka SPE ndi kotetezeka komanso komwe timapangira.Ma valve a PntekZimaletsa kukwera kwa mphamvu yoopsa yokha.

Mapeto

Vavu ya mpira wa union iwiri ndi yabwino kwambiri pamakina aliwonse omwe amafunika kukonzedwa, chifukwa imatha kuchotsedwa kwathunthu popanda kudula mapaipi. Kumvetsetsa kapangidwe ka vavu kumatsimikizira kuti mwasankha bwino.