Chiivharafucavitation? Nzira yekuibvisa sei?
Tianjin Tanggu Mvura-Chisimbiso Valve Co., Ltd
Tianjin,CHINA
19th,Chikumi,2023
Sezvinongoita ruzha runogona kukanganisa muviri wemunhu, mamwe ma frequency anogona kukanganisa midziyo yeindasitiri kana vharuvhu yekudzora yasarudzwa nemazvo, kune njodzi yakawedzera yecavitation, iyo inotungamira kune ruzha rwepamusoro uye vibration mazinga, zvichikonzera zvakanyanya. kukurumidza kukanganisa kune mukati uye pasi pemvura mapaipi evharafu.
Pamusoro pezvo, ruzha rwepamusoro kazhinji runokonzeresa kudedera kunogona kukuvadza pombi, zviridzwa nemimwe michinaValvenekufamba kwenguva, kuparara kwezvikamu, vharafu cavitation inokonzerwa nepipeline system inogona kukuvadza zvakanyanya. Kukuvadzwa uku kunonyanya kukonzerwa nekuzunguzika kwesimba simba, kukurumidza corrosion process uye cavitation inoratidzwa nehupamhi hwehuzha hwehukuru amplitude vibration inogadzirwa nekuumbwa uye kudonha kwemhepo inoputika pedyo nekudzika kweiyo shrinkage..
Kunyangwe izvi zvinowanzoitika mubhoramavharuvhuuye mavharuvhu anotenderera mumuviri, anogona chaizvo kuitika munguva pfupi, kupora kwepamusoro kwakafanana nechikamu chemuviri weV-bhora.vharafu, kunyanyabutterfly valvespadivi pemvura yakadzika yevharuvhu apo iyovharafuinosimbiswa mune imwe nzvimbo inotarisana ne cavitation phenomenon, iyo inowanzoputika muvhavha yepiping uye kugadzirisa welding, valve haina kukodzera chikamu ichi chemutsara.
Pasinei nokuti cavitation inoitika mukati mevhavha kana pasi pevhavhavha, midziyo iri munzvimbo ye cavitation ichave yakakonzerwa nekukuvadza kwakanyanya kune mafirimu e-ultra-thin, zvitubu uye zvikamu zviduku zve cantilever, kudengenyeka kukuru kweamplitude kunogona kukonzera oscillations. Kakawanda kukundikana mapoinzi anowanikwa mune zviridzwa senge pressure gauges, transmitters, thermocouple sleeves, flowmeters, sampling masisitimu Actuators, zvinzvimbo uye zvigadziriso zvemuganho zvine zvitubu zvinotambura nekukasira kupfeka, uye mabhuraketi anokwirisa, zvisungo uye zvinobatanidza zvinosunungura nekutadza nekuda kwekuzunguza.
Fretting corrosion, iyo inoitika pakati penzvimbo dzakasakara dzakafumurwa kune vibration, inowanzoitika pedyo necavitation mavharuvhu. Izvi zvinogadzira maodhidhi akaomarara seabrasives kuti akurumidze kupfeka pakati penzvimbo dzakasakara. Midziyo yakakanganiswa inosanganisira yekuzviparadzanisa uye cheki mavharuvhu, kuwedzera kune kudzora mavharuvhu, pombi, inotenderera skrini, samplers uye chero imwe inotenderera kana kutsvedza michina.
Yakakwira-amplitude vibrations inogona zvakare kutsemuka uye corrode simbi valve nhengo uye pombi madziro. Simbi dzakapararira zvimedu kana zvinoparadza makemikari zvinhu zvinogona kusvibisa midhiya mupombi, izvo zvinogona kukanganisa zvakanyanya pahutsanana pombi yepombi uye yakanyanya kuchena pombi midhiya. Izviwo hazvibvumidzwe.
Kufanotaura kwecavitation kutadza kweplug mavharuvhu kwakanyanya kuomarara uye haisi kungoverengerwa kudzipwa kudonha kudonha. Zvakaitika zvinoratidza kuti zvinogoneka kuti dzvinyiriro iri muhova huru inodonhera kumhepo yemhute yemvura kusati kwaita vaporization yenzvimbo uye kudonha kwemhepo inoputika. Vamwe vagadziri vevharuvhu vanofanotaura kutadza kwezuva kusati kwasvika nekutsanangura kudonha kwekukuvara kwekutanga. Mugadziri wevharuvhu nzira yekutanga nekufanotaura kukuvadzwa kwecavitation kunobva pakuti mabhomba eutsi anodonha, zvichikonzera cavitation uye ruzha. Izvo zvakatemerwa kuti kwakakosha cavitation kukuvadzwa kuchadziviswa kana yakaverengerwa ruzha nhanho iri pazasi pemiganho yakanyorwa pazasi.
Saizi yevharuvhu inosvika masendimita matatu - 80 dB
Saizi yevhavha ye4-6 inches - 85 dB
Saizi yevhavha 8-14 inches - 90 dB
Saizi yevhavha ye16 inches uye yakakura - 95 dB
Nzira dzekubvisa kukuvara kwecavitation
Special valve dhizaini yekubvisa cavitation inoshandisa kupatsanurwa kuyerera uye graded pressure drop:
"Valve diversion" ndeyekuparadzanisa kuyerera kukuru muzvikamu zviduku zvishoma, uye nzira yekuyerera yevhavha inogadzirwa kuitira kuti kuyerera kunoyerera kuburikidza nenhamba yakawanda inopindirana maduku maduku. Sezvo chikamu chehukuru hwe cavitation bubble inoverengwa kuburikidza nekuvhura iyo iyo inoyerera inopfuura. Kuvhura kudiki kunogonesa mabhuru madiki, zvichiita kuti ruzha rushoma uye kukuvara kushoma kana zvasvika pakukuvadzwa.
"Graded pressure drop" zvinoreva kuti vharuvhu yakagadzirirwa kuva nemapoinzi maviri kana anopfuura ekugadzirisa munhevedzano, saka panzvimbo yekudonha kwese kudonha munhanho imwe chete, inotora matanho madiki akati wandei. Zvishoma pane kudonhedzwa kwega kwega kunogona kudzivirira kudzvinyirira mu shrinkage kubva pakudonha kwemhepo yemvura, nokudaro kubvisa chiitiko che cavitation muvhavha.
Iko kusanganiswa kwekutsaudzira uye kudonhedza kudonhedza staging muvhavha imwechete inobvumira kuvandudzwa kwecavitation kuramba ne. Munguva yekuchinja kwevharuvhu, kuisa vharuvhu yekudzora uye kudzvanywa painopinza yevharuvhu kwakakwira (semuenzaniso kure kumusoro kwerwizi, kana kune yakaderera kureba), dzimwe nguva kubvisa cavitation matambudziko.
Mukuwedzera, kuisa valve yekudzora panzvimbo yekushisa kwemvura, uye naizvozvo iyo yakaderera vapor pressure (yakadai seyakadzika tembiricha side heat exchanger) inogona kubatsira kubvisa cavitation matambudziko.
Iyo pfupiso yakaratidza kuti iyo cavitation phenomenon yemavharuvhu zvirokwazvo haingori nezve kuderera kwekuita uye kukuvadzwa kwemavharuvhu. Mapaipi nemidziyo yekudzika pasi zviri panjodzi zvakare. Kufanotaura cavitation uye kutora matanho ekuibvisa ndiyo chete nzira yekudzivirira dambudziko rekudhura mari yekushandisa valve.
Nguva yekutumira: Jun-25-2023
