Pamene valavu ikuyendetsa njinga, khalidwe la kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake ). Nkhaniyi ifotokoza za mawonekedwe a valve curvejin makamaka, komwe kumayenda kumayambira, komanso momwe ma curve amasonyezera mawonekedwe ena a valve ndi zotsatira zake.
Posankha valavu, muyenera kuyang'ana magawo ambiri, koma pamene zida zomveka zikukhudzidwa ndipo kulondola kuli kofunika kwambiri pakugwiritsa ntchito, monga kusanthula kwamadzimadzi, zizindikiro zokweza zowonongeka ziyenera kuganiziridwa, chifukwa kutuluka koyamba kungakhudze modabwitsa. moyo ndi moyo wa dongosolo lonse. thamanga. Mwachitsanzo, ngati valavu imalola kuthamanga kwadzidzidzi, ikhoza kuyambitsa hydraulic shock (yomwe imatchedwanso nyundo yamadzi kapena nyundo yamadzimadzi). Izi zitha kuwoneka mu Chithunzi 1, pomwe malo ozungulira akuwonetsa nsonga yakuthwa yothamanga yomwe imachitika pomwe valavu imakwezedwa kapena kutsegulidwa.
Kukweza mwadzidzidzi kumachitika chifukwa cha momwe kusindikizira kwamkati kwa cholowera (nthawi zambiri mphuno) kumagwirira ntchito ndi valavu yosindikizira, nthawi zambiri valavu ya poppet yokhala ndi mphira yomatira pamwamba pake. Tsoka ilo, chikhalidwe cha mphira (fluororubber, EPDM, etc.) chimapangitsa kuti zikhale zosavuta kumamatira, kusokoneza ndi kusokoneza, zomwe nthawi zina zingayambitse poppet kumamatira kumphuno isanadziwike mwadzidzidzi. Zowonongeka zamakina zingayambitsenso kapena kuthandizira kuwonjezereka kwadzidzidzi, koma izi zimagwirizana kwambiri ndi mapangidwe a valve, monga akasupe komanso ngakhale kukangana.
Mitundu ina ya ma valve ili ndi mawonekedwe omwe amawapangitsa kukhala oyenera kuchepetsa kukweza kwa kuthamanga kapena kuthamanga ndi kumenyetsa, monga ma valve a zipata, ma valve a mpira, kapena ma valve a singano. Kuti muchepetse kuthamanga kwapano mukugwiritsa ntchito kwanu, malo opangira ma valve ayenera kukhala osinthika m'malo ake aulere. Valavu yowongolera, monga valavu ya poppet kapena valavu ya spool, imakhala ndi orifice yokhazikika. Choncho, kukweza pamwamba pa kusindikiza kumagwira ntchito pamtunda wonse wa orifice. Izi zimabweretsa kuchuluka kwa shuga m'magazi. Mwachitsanzo, mbale ya orifice ya 0.006 yokhala ndi control lift ya 0.001 idzayimira 6.5% ya kutuluka kwathunthu, komwe kuli kofanana ndi kukweza mwadzidzidzi kapena kulumpha.
Kugwedezeka kwa hydraulic kungayambitse kugwedezeka, phokoso, ngakhale kuphulika/kulephera kwa mapaipi kapena zosindikizira. Makamaka pamakina okhudzidwa, kuwonetsetsa kuti kuyenda bwino komanso kosasinthasintha ndikofunikira, osati pa moyo wa makinawo kapena ndandanda yokonza. Kusintha kwadzidzidzi kwa kayendetsedwe kake, ngakhale kutakhala kwa nthawi yayitali bwanji, kungakhale kovulaza komanso kokwera mtengo kwambiri poyang'anira ntchito zovuta (monga mankhwala kapena kuwongolera mpweya wabwino), ndipo izi zimakhalanso zowona pogwiritsa ntchito zida zoyezera mbali zosiyanasiyana za dongosolo, monga kakang'ono. kuthamanga kwa magazi. Kuthamanga kwadzidzidzi kwamadzimadzi kungakhale kokwera kwambiri komanso mofulumira kwambiri kuti mita ingathe kuyeza ndi kufalitsa panthawi yake, zomwe zingayambitse kuwerengedwa kolakwika kapena kosakwanira.
Kuthamanga kwakukulu kungatanthauzenso kuti zofalitsa zosakhalitsa kapena zowonjezereka zimalowa mu payipi. Pazinthu zovuta (monga kutulutsa zitsanzo), izi zitha kuwononga ma reagents okwera mtengo / zosungunulira komanso kupangitsa kusanthula kolakwika. M'pofunikanso kuganizira mmene sing'anga palokha, monga magazi kapena ena tcheru zamadzimadzi amene sachedwa hemolysis kapena homolysis, kumene maselo kapena mankhwala mu madzimadzi wosweka. Chisokonezo chidzawonjezera kumasulidwa kwa ma bond a mankhwala, kotero kuchepetsa kusokonezeka kapena chipwirikiti pakuyenda kudzateteza kuwonongeka kapena kuwonongeka kwa zitsanzo zosakhwima. Choncho, ma valve omwe amagwiritsidwa ntchito mwatsatanetsatane ayenera kupereka mawonekedwe othamanga omwe amachepetsa turbulencejprotecting components, zida zamkati, ndi zigawo zamadzimadzi zowonongeka. Pachifukwa ichi, tikulimbikitsidwa kugwiritsa ntchito "kuyambira kofewa" (onani Chithunzi 2). Mosiyana ndi kulimbikitsa komwe kunawonetsedwa kale, "kuyambira kofewa" kumapereka mawu oyambira oyenda bwino musanafewetse kuyenderera kofanana (pakali pano kapena sitepe iliyonse yoperekedwa).
Kuonetsetsa kuti mayendedwe othamanga amatsatira njira yofanana ya valve-to-valve, makamaka makhalidwe okweza, ndikofunika kuti zisagwirizane pakupanga ndi kupanga chidaliro pa mankhwala; Kupatula apo, kuwongolera kwapang'onopang'ono komwe kumalola kuyenda kwa microliter kumakhala kwabwino kwambiri ngati kubwerezedwa . Komabe, munthu ayenera kuvomereza kuti palibe ma valve awiri omwe ali ndi ntchito yofanana, chifukwa palibe ma valve awiri omwe angakhale ofanana ndendende. Chifukwa chake, payenera kukhala mtundu womwe ma valve onse azigwira ntchito. Posankha ma valve, mndandanda uyenera kumveka ndikumveka kotero kuti ma valve onse mu gulu lililonse ali ofanana mokwanira ndipo akhoza kugwira ntchito monga momwe akuyembekezeredwa mu ntchito yoperekedwa. Izi makamaka zikukhudza kunyamuka.
Choncho, nthawi zonse mukasankha valavu, ndikofunika kumvetsera makhalidwe okweza a valve ndikuganizira ngati angathandizire kapena kulepheretsa ntchitoyo.
Pogwiritsa ntchito makina opangira ma linear amphamvu kwambiri komanso amphamvu kwambiri pamsika, chowongolera chowongolera masitepe cha Eclipse chofewa, valavu ya ceramic sliding isolation ili pamalo otsogola pamsika potengera magwiridwe antchito komanso kulimba. Valavu yopambana mphothoyi ndiyoyenera kugwiritsa ntchito zovuta monga zoyendera zamadzi ndi gasi, zamankhwala, zowunikira, ndi mafakitale zomwe zimafunikira kusamvana kopitilira muyeso komanso kubwereza kwabwino kwambiri. Kuphatikiza apo, mapangidwe apadera amalola mbiri zamagalimoto zamagalimoto.
Kulembetsa kapangidwe kazachipatala ndi kutumiza kunja. Ikani chizindikiro, gawanani ndikugawana ndi otsogola amisiri wamaluso azachipatala lero.
DeviceTalks ndi kukambirana pakati pa atsogoleri aukadaulo azachipatala. Ndizochitika, ma podcasts, ma webinars, ndikusinthana kwapamodzi ndi malingaliro ndi zidziwitso.
Magazini ya Medical Device Business. MassDevice ndi buku lotsogola lazachipatala lomwe limafotokoza za zida zopulumutsa moyo.
Nthawi yotumiza: Dec-01-2021
