Izinkinga ezivamile zokushisisa i-valve yesango lokuphepha kwesithando somlilo Ukuhlaziywa Ulwazi oluyisisekelo lwe-valve yokuphepha

Izinkinga ezivamile zokushisisa i-valve yesango lokuphepha kwesithando somlilo Ukuhlaziywa Ulwazi oluyisisekelo lwe-valve yokuphepha 1. Isethulo Ivalvu yokuphepha iyi-valve yesango yokulungisa ebalulekile, esetshenziselwa imikhumbi ehlukene yomfutho ophezulu kanye namapayipi okudlulisa, lapho ukucindezela kokusebenza ohlelweni lokucindezeleka kweqa izinga. value, ingavuleka ngokuzenzakalelayo, impahla eyeqile ekhishelwe emoyeni, ukuqinisekisa ukusebenza okuphephile kwemikhumbi yomfutho ophezulu kanye namapayipi okudlulisa, ukugwema ukwenzeka kwemicimbi, Kodwa lapho ingcindezi ohlelweni lwesoftware ibuyela emuva ekucindezelweni noma ngaphansi kancane. ingcindezi, ingaphuma ngokuzenzakalelayo. Umsebenzi ohlobene ne-valve yokuphepha uhlobene ngokuqondile nokuphepha kwemishini nokuphepha komuntu siqu, ngakho-ke kufanele sinake kakhulu. 2. Izimbangela nezixazululo zezinkinga ezivamile ze-valve yokuphepha 2.1, ukuvuza kwesango  Ngaphansi kwengcindezi evamile yokusebenza yesistimu, ukuvuza kwe-valve ye-piston kanye ne-valve yesango lomfutho ophezulu endaweni yokuvala kudlula izinga elivumelekile, futhi ukuvuza i-valve yokuphepha ngeke ibangele ukulimala kwezinto ezibonakalayo kuphela. Ngaphezu kwalokho, i-medium izoqhubeka nokuvuza izigxivizo zenjoloba ezinzima zizolimala, noma kunjalo, indawo yokubeka uphawu ye-valve evamile yokuphepha yizo zonke izinto ezihlanganisiwe zensimbi ezintweni zensimbi, nakuba ukwenza bushelelezi nokuhleleka, kodwa kunzima kakhulu ukuqinisekisa amanzi. ukuvuza ngaphansi kwesisekelo sokukhululeka kwengcindezi yezinto ezibonakalayo. Ngakho-ke, phakathi nendawo i-valve yokuphepha ye-vapor, ngaphansi kwengcindezi yesistimu ecacisiwe, uma iso lenyama lingakwazi ukubona ekungeneni nasekuphumeni ekugcineni, futhi alikwazi ukuzwa ukuvuza, cabanga ukuthi ukuqina kuhambisana nezidingo. Ngokuvamile, kunezizathu ezintathu eziyinhloko zokuvuza kwe-valve yesango: Icala elilodwa ukuthi izinsalela ezingcolile ziwela endaweni yokuvala, futhi indawo yokuvala ivaliwe, okuholela egebeni phakathi kwe-spool kanye ne-valve yesango lomfutho ophezulu, bese kuba yisango. ukuvuza kwe-valve. Indlela yokususa lolu hlobo lwephutha elivamile iwukuqhuma ukungcola nezinsalela endaweni evalekayo, ngokuvamile esithandweni sokushisa kusengaphambili ukuze kulungiswe usayizi wepayipi lebhayela, owokuqala ukwenza ukuhlolwa kokuhola komnyango wokuphepha, uma kutholakele. ukuvuza kwe-boiler blow pipe nakho kwenziwa ukulungiswa kokuwa, uma kungemuva kokuba isithando somlilo siqhube ukuhlolwa okuholela ekutholeni ukuthi ukuvuza komnyango wokuphepha, kungase kubangelwe into enjalo, Umthofu ungagijima ngemva kwemizuzu engu-20 yesiqandisi bese ugijima iphini, indawo yokuvala ukuze ugeze. Esinye isimo ukulimala kwendawo evaliwe. Izizathu eziyinhloko eziholela ekulimaleni kwendawo yokuvala yilezi ezilandelayo: Okokuqala, impahla engaphezulu yokuvala imbi. Isibonelo, kumnyango wokuphepha ongunombolo 3 ~ 9 wesithando somlilo ngenxa yeminyaka yokulungiswa, i-spore yomnyango wokuphepha oyinhloko kanye nendawo yokuvalwa kwe-valve yesango eliphakeme kuye kwafundwa kabanzi kuphansi kakhulu, ukuze ukuqina kwendawo yokuvala kuncishiswe, okuholele ekutheni ukubekwa uphawu okuncishisiwe, indlela efaneleke kakhulu yokususa lesi simo ukugaya phansi indawo yokubeka uphawu yokuqala, bese ngokusho kwemidwebo yobunjiniyela uphinde ukhiqize ukukhiqizwa nokucutshungulwa kwe-welding, Thuthukisa ubulukhuni bendawo yokubeka uphawu. Naka izinga lokukhiqiza kumele kuqinisekiswe inqubo yokukhiqiza, njengokuqhekeka kwendawo yokuvala, izimbobo zesihlabathi kanye nokunye ukushiyeka kufanele kugaywe ngemuva kokukhiqiza nokucutshungulwa. I-valve yesango ye-spool yokucubungula entsha kufanele ihlangabezane nezindinganiso zokudweba zobunjiniyela. Njengamanje, ukusetshenziswa kwe-YST103 yensimbi yokushisela universal iron spray spray to make the valve core sealing surface kuhle kakhulu. Okwesibili, ikhwalithi yesondlo ayilungile, ukugaya i-valve ye-spool high pressure gate ayikwazi ukuhlangabezana nezindinganiso zekhwalithi yomkhiqizo, indlela yokususa lolu hlobo lwamaphutha avamile ukusebenzisa indlela yokugaya noma yokugaya ukulungisa indawo yokubeka uphawu ngokuvumelana nezinga. yomonakalo. Enye imbangela enkulu yokuvuza kwevalvu yezokuphepha ukufakwa okungafanele noma ubukhulu bezingxenye ezifanele bukhulu kakhulu. Kusixhumanisi sokufaka, i-valve yesango lomfutho ophezulu we-spool ibikade ingalungi noma kunokuvuza okuncane endaweni ehlanganyelwe, noma indawo yokuvala ye-spool high pressure gate valve ivuleke kakhulu ukuthi ingavaleka. Hlola usayizi nokufana kwemvume ezungeze umhlangano we-spool, qinisekisa ukuthi imbobo engaphambili ye-spool kanye nendawo yokuvala kuyafana, futhi uthole izikhala kuyo yonke indawo azikwazi ukuphuma ngaphandle kwe-spool; Ngokusho kwemidwebo yobunjiniyela, ububanzi bendawo yokuvala kufanele buncishiswe ukuze kuzuzwe uphawu olufanele. 2.2 Ibhodi lesekethe likawoyela elivuzayo elibophayo,   Ibhekisela enkingeni yokuvuza kwamanzi endaweni engaqondile yepuleti lesekhethi kawoyela, okuholela kulolu hlobo lokuvuza yizizathu ezibalulekile ezilandelayo: okokuqala, indawo ehlangene yebhawodi lehange yokuqinisa amandla ayonele noma kuqinile, okuholela ekuvaleni ubuso obuhlangene akukuhle kakhulu. Iyiphi indlela yokuhlanza yokulungisa amandla okuqinisa amabhawodi? Lapho uqinisa ibhawudi lehange, kufanele liqhutshwe ngendlela yokuqinisa ngokusho kwe-Angle ephezulu. Kungcono ukulinganisa ngokunembile isikhala endaweni ngayinye futhi uqinise ibhawudo lehange kuze kube yilapho linganyakazi, ukuze wenze indawo ehlangene ibe yindawo efanayo endaweni ngayinye. Okwesibili, i-oil circuit plate joint surface izinyo uhlobo lokuvala i-gasket aluhlangabezani nezidingo. Isibonelo, uhlobo lwezinyo lokuvala i-gasket axial groove kancane, ukucaba, uhlobo lwamazinyo olubukhali kakhulu noma umthambeko kanye nokunye ukushiyeka kuzoholela ekuvaleni okungasebenzi. Ukuze uwoyela wesekethe plate ngokuhlanganyela surface ukuvuza. Ekugcinweni kokulawulwa kwekhwalithi yezingxenye, ukukhethwa kwama-gaskets ajwayelekile okuvalwa kwezinyo kungagwema lolu hlobo lwesimo. Okwesithathu ukuthi ipuleti lesekhethi kawoyela elihlangene liphansi liphansi kakhulu noma liyizinsalela eziqinile okuholela ekuvaleni kungasebenzi kahle. Ohlangothini oluhlangene lwepuleti lesekhethi kawoyela okubangelwa ukungasheleli kahle kwepuleti lesekhethi kawoyela elihlangene lokuvuza kwamanzi, indlela yokukhipha iwukubhidliza i-valve yesango bese ugaya indawo ehlangene futhi ize ihlangabezane nezindinganiso zekhwalithi yomkhiqizo. Ngenxa yokuthi i-residu pad ebangelwa ukubekwa uphawu ayisebenzi, emhlanganweni we-valve wesango susa ngokucophelela indawo ehlangene ukuze uvimbele ukuwela okusele. 2.3, ukuma kwe-valve yokuphepha okungazelelwe Ukuma kwevalvu eyinhloko yokuphepha Lesi simo saziwa nangokuthi ukwenqatshwa kwesango lokuphepha eliyinhloko. Umnyango oyinhloko wokuphepha uvaliwe ukusetshenziswa kokulimala kwesithando sokushisa kukhulu kakhulu, kuyingozi enkulu yemishini efihliwe, ukulimala okukhulu ekusebenzeni okuphephile kwemishini nemishini, kanye nokusetshenziswa kwemikhumbi yomfutho ophezulu kanye namapayipi ekucindezelweni okusebenzayo okungaphezulu. i-current rated, umnyango oyinhloko wokuphepha awukona ukuma, ukuze ukusebenza kokucindezela ngokweqile kube lula ukubangela ukulimala kwemishini kanye nemishini kanye nezingozi ezinkulu zokuphepha. Ngaphambi kokutadisha izizathu eziyinhloko zomnyango omkhulu wokuphepha wenqaba ukunyakaza, qala uhlaziye isimiso esiyisisekelo sokusebenza komnyango wokuphepha oyinhloko. Njengoba kuboniswe kuMfanekiso 1 ngezansi, lapho ingcindezi emkhunjini wokucindezela ikhuphukela kuwo wonke ukucindezela kwe-valve yokusiza umfutho, indawo ye-valve yokusiza umfutho, impahla isuka esitsheni iye egumbini le-piston ye-valve yokuphepha enkulu ngokusho kwepayipi, Igumbi le-piston kuzoba nokunwetshwa okuncane kokunciphisa umfutho wegazi, uma umfutho wegesi egumbini le-piston kungu-P1, indawo ye-piston throttle cishe i-Shs, khona-ke i-f1 esebenza ku-piston ithi: F1 = P1 nge-Shs... .......................................... (1) Uma ingcindezi yegesi emaphakathi ingenile umkhumbi we-pressure yi-P2, futhi indawo ye-valve core imayelana ne-Sfx, khona-ke amandla okusebenzisana f2 wento ephushela phezulu kumongo we-valve ithi: F2 = P2 x Shx ... (2) Imbobo ye-valve yokukhulula evamile I-diameter ye-valve core inkulu, ngakho-ke uhlobo (1) kanye (2) uhlobo lwe-Shs > Sfx  P1 impahla P2 Uma isiphethu se-torsion sisethwe njenge-f3 kanye namandla okuslayida okuslayida phakathi kwengxenye yokufaneleka kanye nengxenye engashintshi ( imvamisa amandla okuslayida phakathi kwepiston nepiston) amiswa njenge-fm ngokuya ngamandla esihlalo se-valve ngokumelene ne-spool, imfuneko yokusebenza komnyango wokuphepha oyinhloko iwukuthi: Kuphela uma amandla okusebenzelana u-f1 esebenza. i-piston yinkulu kancane, amandla okusebenzisana f2 asetshenziswa ku-spool ukuyiphushela phezulu, ukumelana nokushuba kwesiphethu se-torsion ukuya ku-spool phezulu ngokusho kwesihlalo se-valve f3 kanye namandla okuslayida okuslayida phakathi kwengxenye yokufaneleka kanye nengxenye engashintshi ( ngokuvamile amandla okuslayida phakathi kwepiston nepiston chamber) fm sum, okungukuthi: Isango elikhulu lokuphepha lingasetshenziswa kuphela uma f1 > f2 f3 fm. Empeleni, ukwenqatshwa komnyango wokuphepha okuyinhloko kungase kuhlotshaniswe nalezi zici ezintathu ezilandelayo: Enye ingxenye yezemidlalo yokufaneleka kwe-valve yesango ibanjiwe. Lokhu kungase kube ngenxa yokufakwa okungenangqondo, ukungena kokungcola nezinsalela noma ukuguguleka kwezingxenye; Ubushelelezi be-piston chamber surface bumbi, umonakalo ongaphezulu, ama-grooves nokunye ukushiyeka okubangelwa okusanhlamvu okuqinile. Ngale ndlela, amandla okuslayida okuslayida phakathi kwengxenye yokufaneleka kanye nengxenye engashintshi nemile azonwetshwa. Ngaphansi kwesisekelo sokuthi ezinye izidingo zihlala zingashintshiwe, f1 Ububanzi be-valve yokuphepha komfutho buncane kakhulu, okuholela ekuncishisweni kwesitimu esifakwe engxenyeni ye-piston yevalvu yokuphepha eyinhloko, namandla anganele f1 ukuze kuthuthukiswe ukwehla kwepiston, okungukuthi, f1 Lokhu kuvame ukukwenzeka lapho i-valve eyinhloko yokuphepha i-valve impulse safety ine-replacement, ngoba ayicatshangelwa kahle futhi ibangelwa. Isibonelo, lapho isithando somlilo esingu-5 silungiswa, ama-valve amabili okuphepha okucindezela isando esindayo athathelwa indawo ama-valve amabili okuphepha e-A49H-P54100VDg20 akhiqizwa yi-Harbin Valve Factory. Le valve yokuphepha ngokuvamile isetshenziswa nge-A42H-P54100VDg125 uhlobo oluphambili lokuphepha oluphambili. Yibeke nge-Su production Dg150×90×250 uhlobo lwevalve yokuphepha eyinhloko esetshenziswayo, lolu hlobo lwevalve yokuphepha eyinhloko kanye ne-A29H-P54100VDg125 uhlobo lwe-spring uhlobo lwe-valve yokuphepha eyinhloko inkulu kunobubanzi obujwayelekile futhi ukuqina akunamandla, esithandweni somlilo esingu-5. isiphetho sesisindo se-valve yesimo sokuphepha esigcwele, yenza ukuhola kokuhlola ukuya ekwakhiweni kwevalvu yokuphepha eyinhloko. Okokugcina, sizobhidliza i-valve yokuphepha komfutho, umkhono womhlahlandlela kanye ne-spool kubambisana nengxenye ngayinye yokunwetshwa kwegebe, ukuze kuthuthukiswe indawo yayo yokuthwala yamanje, siqhube ukuhola futhi ukuhlola okuyimpumelelo. Ngakho-ke i-valve yokuphepha kwe-impulse kanye nokumataniswa kwe-valve yokuphepha okuyinhloko akunangqondo, isilinganiso esilinganiselwe se-diameter sizobangela ukwenqatshwa kwe-valve yokuphepha okuyinhloko. 2.4, i-valve yokuphepha enomfutho isihlalo esingemuva Shu main valve security ukubambezeleka isikhathi sokuhlehla kwesihlalo side kakhulu Izizathu eziyinhloko zalawa maphutha avamile zimi kanje: Ngakolunye uhlangothi, usayizi wokuvuza wengxenye yepiston yevalvu yokuphepha eyinhloko, nakuba i-impulse safety valve back seat, kodwa kukhona nomfutho we-steam epayipini kanye negumbi le-piston lisephezulu kakhulu, khuthaza amandla e-piston down asemakhulu kakhulu, ngakho-ke holela esihlalweni esingemuva se-valve yokuphepha kancane, lolu hlobo lokwehluleka okuvamile. ngaphezu kwe-A42Y-P5413.7VDg100 valvu yokuphepha, Ngenxa yalolu hlobo lwe-valve yokuphepha ye-piston chamber seal enhle. Indlela yokususa lolu hlobo lokwehluleka ngokuyinhloko ukukhulisa izinga lokuvula le-valve yokukhulula kanye nokwandisa ububanzi be-valve yokudonsa ukuze kuxazululwe, izinga lokuvula le-valve yokukhulula kanye nobubanzi be-throttle valve kukhuphuka ukushiya umusi eshubhu le-monopulser ngokushesha. kukhishwa, ukuze kuncishiswe ingcindezi yokusebenza ku-piston, ukuze isetshenziswe ukuze ipiston yehlise amandla okushayela anciphe ngokushesha, I-valve spool ekuqoqweni kwezinto zesitimu ebhokisini le-exhaust ukushayela amandla okushayela futhi i-valve yokuphepha eyinhloko ngokwayo i-torsion spring ukushayela phezulu ngaphansi kwethonya le-tension ngokushesha ibuyele esihlalweni. Ngakolunye uhlangothi, ngenxa yokuthi ukungqubuzana phakathi kwezingxenye ezihambayo ze-valve yokuphepha eyinhloko kanye nezingxenye ezihleliwe kukhulu kakhulu, i-valve yokuphepha eyinhloko izophinde iholele esihlalweni esihamba kancane, ukubhekana nalolu hlobo lwenkinga iyona eyinhloko yezemidlalo yokufaneleka kwe-valve yokuphepha. izingxenye nezingxenye ezilungisiwe zephaneli yokulawula igebe lomhlangano ngaphakathi kobubanzi bokucaciswa.