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Zifundise ukuthi ungabona kanjani ukuthi ukuvuza kwe-valve yokulawula umoya kusezingeni elijwayelekile ekuhlaziyweni kokudlidliza kwe-valve nesixazululo
2022-11-28
Zifundise ukuthi ungabona kanjani ukuthi ukuvuza kwe-valve yokulawula umoya kufinyelele ezingeni ekuhlaziyweni kokudlidliza kwe-valve kanye nesixazululo Isakhiwo sevalvu yokulawula umoya sinikeza ibhalansi enhle, futhi siqedele amathuba okuvuza okuphakathi, umhlahlandlela womkhono wokulawula umoya womoya, I-spool yohlobo lwebhalansi yokucindezela, ifanele izikhathi ezinkulu zomehluko wengcindezi. Indandatho yophawu lwebhalansi isetshenziselwa ukumiselela isihlalo esiphezulu, ukuze isakhiwo sevalvu esinezihlalo ezimbili singene esakhiweni esinesihlalo esisodwa somkhono, lokhu kuthuthukiswa kuthuthukisa izinga lokuvuza levalvu elawula umkhono. Isembozo se-valve sivalwe kabili nge-bellows kanye nokupakishwa, okuqeda ngokuyisisekelo ukuthi kungenzeka ukuvuza okuphakathi. Lolu hlobo lwesilawuli lufanele ukulawulwa kwengcindezi yokugeleza kwemidiya enobuthi noma eyigugu. Ngakho-ke sifuna ukuthola ukuvuza kwe-valve yokulawula umoya ongekho ezingeni elifanele, kungaqedwa ngokuhlolwa okuthile, iziphetho ezitholwe ngemva kokuhlolwa zingafingqa izinga lokuvuza kwe-valve yokulawula umoya womoya. I-pneumatic control valve ukuvuza ukuhlolwa okujwayelekile, isidingo sokuqala sokuhlola ingcindezi ye-medium, njengokucindezela kwe-valve yokulawula kufanele kube ngu-3.5kg/cm? , lapho umehluko wengcindezi ovumelekile wesilawuli ungaphansi kuka-3.5kg/cm? Lona umehluko wengcindezi ovumelekile. Indawo yokuhlola kufanele ibe uketshezi oluhlanzekile (amanzi noma uphalafini) kanye negesi (umoya noma i-nitrogen) ku-10-50℃. Ngenxa yezimo ezihlukene zokusebenza, kuzoba namanani amaphutha ekuhlolweni kweminye imidiya, ngakho-ke kunconywa ukusebenzisa i-medium enconyiwe ukuqedela ukuhlolwa. Lapho uhlola okuphakathi, okuphakathi kufanele kwengezwe ku-valve ngokuhambisana nesiqondiso sokugeleza esinqunyiwe. I-valve yokuphuma ingaxhunywa ngokuqondile emkhathini noma i-outlet emkhathini wedivayisi yokulinganisa ukulahlekelwa kwengcindezi ephansi, lapho i-valve engaphansi kwengxenye yepayipi yokuxhuma igcwele ngokuphelele abezindaba, kulokhu ungakwazi ukukala inani lokuvuza kwe-valve. I-actuator yokulawula umoya womoya wokulawula umoya, i-actuator kufanele yengeze ingcindezi yesignali ethile, kumele iqinisekise ukuthi isilawuli sivalekile, ekuhlolweni, i-actuator yomoya, igesi evulekile kanye nokwelashwa kwegesi okuvalekile akufani, ingcindezi yesignali evulekile yegesi kumele ibe yiziro. , Ukucindezela kohlobo lohlobo lwegesi oluvalayo kuzoba umkhawulo wengcindezi ephezulu yokufaka isignali enkulu kanye nenani eliphansi lokucindezela. Lapho uhlola i-actuator ye-valve yokulawula enqamuliwe, ingcindezi yesignali ye-actuator izoba ingcindezi ecaciswe ekwakhiweni. Ukuhlaziywa kokudlidliza kanye nesisombululo se-valve elawulayo ku-valve kwethulwa Okokuqala, ukudlidliza nomsindo we-valve elawulayo kungahlukaniswa cishe ngokudlidliza komshini, ukudlidliza kwe-cavitation kanye nokudlidliza okuguquguqukayo okuguquguqukayo kanye nezinye izizathu ngokusho kwezici ezihlukene zokunciphisa. I-1, ukudlidliza okuguquguqukayo okuwuketshezi: okuphakathi nenqubo ye-valve throttling nakho kuyinqubo yokungqubuzana, ukumelana nokuphazamiseka. I-vortex yakheka lapho umzimba onyakazayo udlula ku-valve elawulayo ezungeze uketshezi, futhi i-vortex izowa ngokuvuka kokugeleza okuqhubekayo koketshezi. Ukwakheka kanye nezici ezinomthelela wemvamisa yokuchithwa kwe-vortex kuyinkimbinkimbi kakhulu futhi kunokungahleliwe okukhulu, ngakho ukubala komthamo kunzima kakhulu. Kodwa-ke, kukhona imvamisa yokuchitheka evelele ngokufanelekile. Lapho imvamisa yokuchitha evelele (futhi ehlanganisa ama-harmonics aphezulu) iseduze noma ihambisana nemvamisa yesakhiwo se-valve elawulayo kanye namadivayisi ayo asizayo, i-resonance iyenzeka, futhi i-valve elawulayo ikhiqiza ukudlidliza, futhi ihambisane nomsindo. Ukuqina kokudlidliza kuncike ekushubeni kwemvamisa yokuchithwa okubusayo kanye nokuvumelana kokuqondiswa kwegagasi eliphakeme le-harmonic. 2. Ukudlidliza kwemishini kungahlukaniswa kube yizifunda ezimbili ngokuya ngokubonakaliswa kwayo. Isimo ukudlidliza sekukonke kwevalvu elawulayo, okungukuthi, i-valve yonke elawulayo epayipini noma isisekelo sokudlidliza okuvamile, isizathu singenxa yepayipi noma isisekelo sokudlidliza okunobudlova, okubangela ukudlidliza kwevalvu elawulayo yonke. Ngaphezu kwalokho, iphinde ihlotshaniswe nemvamisa, okungukuthi, lapho imvamisa yangaphandle ilingana noma iseduze nemvamisa yemvelo yesistimu, amandla okudlidliza okuphoqelekile afinyelela inani elikhulu futhi akhiqize i-resonance. Esinye isimo ukudlidliza kwe-disc ye-valve elawulayo, isizathu ngokuyinhloko ngenxa yokwanda okusheshayo kwesivinini se-medium, ingcindezi yomehluko ngaphambi nangemva kwe-valve elawulayo ishintsha kakhulu, okwenza ukuthi yonke i-valve elawulayo ikhiqize i-oscillation enkulu. 3. Ukudlidliza kwe-Cavitation ngokuvamile kwenzeka ku-valve elawulayo ye-liquid medium. Isizathu esiyinhloko se-cavitation yi-vaporization ye-liquid ebangelwa ukusheshisa kwe-fluid shrinkage kanye nokwehla kokucindezela okumile ku-valve elawulayo. Ukuvulwa okuncane komlawuli, umehluko omkhulu wengcindezi ngaphambi nangemva kwe-valve, kukhulu amathuba okusheshisa uketshezi kanye ne-cavitation, futhi ukwehla kwengcindezi yokuvimbela ukugeleza okuhambisanayo kuncane. Okwesibili, isixazululo 1, khulisa usayizi womhlahlandlela, unciphise indlela yokugunyazwa okufanele; Usayizi ojwayelekile womhlahlandlela we-valve yepulaki ye-shaft mncane, futhi imvume efanelekile yawo wonke ama-valve ngokuvamile inkulu, eno-0.4 ~ lmm, okuwusizo ukukhiqiza ukudlidliza komshini. Ngakho-ke, lapho ukudlidliza komshini okuncane kwenzeka, ukudlidliza kungenziwa buthaka ngokwandisa usayizi womhlahlandlela kanye nokunciphisa imvume efanelekile. 2, shintsha ukwakheka kwezingxenye ze-throttle, susa indlela ye-resonance; Ngenxa yokuthi lokho okubizwa ngokuthi umthombo wokudlidliza we-valve elawulayo kwenzeka ekugelezeni kwesivinini esikhulu, ingcindezi ishintsha kakhulu ku-throttling port, ukushintsha ukwakheka kwezingxenye ezinyakazayo kungashintsha imvamisa yomthombo wokudlidliza, lapho i-resonance ingaqinile. , kulula ukuxazulula. Indlela eqondile iwukuphendula indawo ye-spool ibe ngu-0.5 ~ 1.0mm kububanzi bokuvuleka kokudlidliza. 3, ukwandisa indlela yokuqina; Ukuze uthole i-oscillation nokudlidliza okuncane, ukuqina kungakhushulwa ukuze kuqedwe noma kube buthaka, njengokukhethwa kokuqina kwentwasahlobo, sebenzisa i-piston actuator nezinye izindlela zingenzeka. 4, buyisela uhlobo lwe-valve elawulayo ukuze kuqedwe i-resonance; Imvamisa yemvelo yama-valve alawulayo anamafomu ahlukene esakhiwo ahlukile ngokwemvelo. Ukushintsha uhlobo lwe-valve elawulayo kuyindlela ephumelelayo yokuqeda i-resonance. I-valve ekusetshenzisweni kokudlidliza inamandla kakhulu futhi inamandla okudlidliza (ukulimala okungathi sína ku-valve), ukujikeleza okuqinile (ngisho nesiqu siphukile, siphukile), futhi sikhiqiza umsindo oqinile (ofika kuma-decibel angu-100) we-valve, inqobo nje uma ukushintshwa kwayo kube isakhiwo esikhudlwana se-valve, i-resonance esebenza ngokushesha, eqinile yanyamalala ngokuyisimangaliso. 5, nciphisa indlela ye-cavitation vibration; Ngokudlidliza kwe-cavitation okubangelwa ukuqhuma kwebhamuza le-cavitation, kuyadingeka ukuthola izindlela zokunciphisa i-cavitation. ① Vumela amandla omthelela akhiqizwe ukugqashuka kwebhamuza angasebenzi endaweni eqinile, ikakhulukazi ku-spool, kodwa vumela uketshezi lumunce. Amavalvu emikhono analesi sici, ngakho-ke ungakwazi ukushintsha uhlobo lwepulaki lwe-spool lube uhlobo lwemikhono. (2) Zonke izindlela zokunciphisa i-cavitation, njengokwandisa ukumelana ne-throttle, ukukhulisa ingcindezi ye-inlet, i-graded noma i-series decompression, njll. 6, gwema indlela yesiteleka somthombo wokudlidliza; Igagasi lomthombo lokudlidliza langaphandle elibangelwa ukudlidliza kwe-valve, okusobala ukuthi ukusebenza okuvamile kwe-valve kufanele kugwenywe, uma ukudlidliza kufanele kuthathwe izinyathelo ezihambisanayo. 7, ukwandisa indlela yokuthambisa; Okuwukukhuphula ukungqubuzana kuye ekudlidlizeni, njengepulaki yevalve yemikhono ingavalwa ngendandatho ye-O, ukusetshenziswa kwesigcwalisi segraphite esinokungqubuzana okukhulu, okunomthelela othile ekuqedeni noma ekwenzeni buthaka ukudlidliza okuncane. 8, shintsha izingxenye ze-throttle ukuze kuqedwe indlela ye-resonance (1) Shintsha izici zokugeleza, i-logarithm ibe ngomugqa, umugqa uye ku-logarithm; ② Shintshanisa ifomu le-spool. Isibonelo, shintsha isimo sepulaki ye-shaft sibe i-spool ye-groove emise okwe-V, shintsha uhlobo lwepulaki ye-valve yesihlalo esikabili ibe uhlobo lomkhono; Shintsha umkhono wokuvula iwindi kumkhono wezimbobo zokubhoboza, njll.