Antoy valve cavitation? Panon ya naekal itan?

Anto tobalbulacavitation? Panon ya naekal itan?

Tianjin Tanggu Water-Seal Valve Co., Ltd

Tianjin,CHINA

koma-19,Hunyo,2023

No panon ya say tanol et walay negatibon epekto to ed laman na too, wala met iray frequency ya makaderal ed saray kagawaan ed industriya no say control valve et duga so pinili to, walay mas baleg a peligro na cavitation, ya pansengegan na atagey ya ungol tan yegyeg, ya manresulta ed maples ya pakaderal na saray tubo ed loob tan leksab nabalbula.

Niarum ni, say atagey ya ungol et kaslakan ya pansengegan na yegyeg ya nayarin maneral ed saray tubo, instrumento tan arum niran kagawaanBalbuladiad ilalabas na panaon, say pakaderal na saray kabiangan, say pakawalaan na balbula ya sengegan na sistema na tubo et mainomay ya naderal. Sayan pakaderal et maslak ya sengegan na enerhiya na ungol na yegyeg, maples ya proseso na panag-apag tan say cavitation ya napatnagan ed atagey ya ungol na baleg ya amplitude na yegyeg ya nanlapud inkaporma tan inkagba na saray bula na singaw ya asingger tan leksab na shrinkage.

Anggaman saya so kaslakan ya nagagawa ed bolabalbulatan saray rotary valves ed laman, nayarin nagawa itan ed antikey tan atagey a recovery a mipara ed wafer body part na V-ballbalbula, lalo labalbula na kulibangbangdiad bandad leksab na balbula no saybalbulaet na-stress ed sakey a posisyon ya mainomay ya na-cavitation phenomenon, ya mainomay ya na-leak ed valve piping tan welding repair, say balbula et aliwan matukoy ed sayan seksion na linya.

Anggano walay cavitation ed loob na balbula odino diad leksab na balbula, saray kagawaan ed lugar na cavitation et naderal a maong ed saray ultra-thin films, springs tan melag iran section cantilever structures, saray angkakabaleg ya amplitude vibrations et nayarin pansengegan na oscillations. Saray mabetbet ya ag-inkayadyari et nanengneng ed saray instrumento a singa say pressure gauge, transmitter, thermocouple sleeves, flowmeter, sampling system Saray actuator, positioner tan limit switch ya walaan na saray spring et maples ya naupot, tan saray mounting bracket, fastener tan connector et onlukas tan onkapuy lapud yegyeg.

Say fretting corrosion, ya nagagawa ed baetan na saray daan lan tapew ya napapaarap ed yegyeg, et kaslakan ya asingger ed saray balbula na cavitation. Saya so mamapawala na malet iran oxide bilang abrasive pian napapeles so pan-upot ed baetan na saray naupot a tapew. Kaiba ed saray apektadon kagawaan so isolation tan check valves, nilikud ed saray control valve, pumps, rotating screens, samplers tan antokaman ya rotating o sliding mechanism.

Saray atagey ya amplitude ya yegyeg et nayarin man-crack tan man-corrode ed saray metal ya parte na balbula tan dingding na tubo. Saray nitaytayak a partikulo na metal odino saray makaderal a kemikal a materyales so nayarin mankontamina ed media ed pipeline, a nayarin walaan na baleg ya epekto ed hygienic valve piping tan high purity piping media. Agmet iya naabuloyan.

Say pangibaga ed pakaandi na cavitation na saray plug valve et mas komplikado tan aliwan basta labat kalkulaen so choke pressure drop. Isusuheri na eksperiensya ya posiblin say presyon ed manunan agos et onleksab ed presyon na singaw na likido antis na lokal a panagsingaw na lugar tan say inkagba na bula na singaw. Wala ray managgaway balbula ya mangipapasakbay na masakbay ya pakaandi na eklipse diad pangiter na kabaliksan na initial damage pressure drop. Say paraan na sakey a managgaway balbula pian onggapo ed pangibaga ed pakaderal na cavitation et nibase ed katuaan ya saray steam bubbles et onlelereg, ya pansengegan na cavitation tan ungol. Nadetermina ya napaliisan so baleg a pakaderal na cavitation no say kalkuladon lebel na ungol et abeba nen say limitasyon ya akalista ed leksab.

Say kabaleg na balbula et anggad 3 pulgada – 80 dB

Say kabaleg na balbula et 4-6 pulgada – 85 dB

Kabaleg na balbula 8-14 pulgada – 90 dB

Say kabaleg na balbula et 16 pulgada tan mas baleg – 95 dB

Saray paraan pian naekal so pakaderal na cavitation

Say espisyal ya desinyo na balbula pian naekal so cavitation et manguusar na split flow tan graded pressure drop:
Say “Valve diversion” et say pangibiig ed baleg ya agos ed pigaran melag ya agos, tan say dalan na agos na balbula et adesinyo pian say agos et ondalan ed pigaran manparaan a melag iran lukas. Lapud say kabiangan na kabaleg na cavitation bubble et nakalkula ed lukas ya dadalanan na agos. Say melag ya lukas et mamawala na angkekelag iran bula, kanian mas daiset so ungol tan mas daiset so pakaderal no nipaakar ed pakaderal.

Say “Graded pressure drop” et mankabaliksan ya say balbula et adesinyo ya walaan na duara odino masulok nin adjustment points ya nantutumbokan, kanian imbes ya say interon pressure drop et diad sakey a kundang, kaukolan toy pigaran angkekelag a kundang. Say kulang ed indibidual ya pressure drop et makaamper ed pressure ed shrinkage manlapud onlelereg ya vapor pressure na likido, kanian naekal so phenomenon na cavitation ed balbula.

Say kombinasyon na panag-divert tan pressure drop staging ed parehon balbula so mamaabuloy ed mas maabig ya resistensya ed cavitation. Legan na pananguman ed balbula, say pangiposisyon ed kontrol a balbula tan say presyon ed lolooban na balbula et mas atagey (alimbawa, mas arawi ed tagey na ilog, odino diad abeban katagey), a no maminsan et mamaandi ed saray problema ed cavitation.

Niarum ni, say pangipuesto ed control valve ed kawalaan na temperatura na likido, tan sirin say abeban presyon na singaw (singa say abeban temperatura ed gilig na heat exchanger) et makatulong pian naekal iray problema ed cavitation.

Impanengneng na sumaryo ya say cavitation phenomenon na saray balbula et aliwan nipaakar labat ed degradation performance tan pakaderal na saray balbula. Saray tubo tan kagawaan ed leksab na ilog et wala met ed peligro. Say pangibaga ed cavitation tan panggawa na paraan pian naekal itan so paraan pian napaliisan so problema na magastos ya gastos ed panagkonsumo na balbula.