Nguwuphi umgangatho ofanele ukuhlangana nomoya wokusebenza wevalve yombane? Thenga isixhobo ivalve yombane kufuneka ingqalelo ingxaki

Nguwuphi umgangatho ofanele ukuhlangana nomoya wokusebenza wevalve yombane? Thenga isixhobo sevalve yombane kufuneka sinikele ingqalelo kwingxaki Isantya sokutshintsha isivalo sevalve yoMbane sinokuhlengahlengiswa, ulwakhiwo oludityanisiweyo, ukugcinwa lula, lulungele ukulawula igesi, amanzi, umphunga, zonke iintlobo zezinto ezidlekayo, isanti, i-oyile, isinyithi solwelo kunye nezinto ezinemitha yombane. kunye nezinye iintlobo zokuhamba kwamanzi. Isixhobo sevalvu yombane ngumatshini oyimfuneko ukukhuthaza ulawulo lwenkqubo yevalvu yesango, ulawulo oluzenzekelayo nolawulo olukude. Ukuhamba kwayo kunokulungiswa ngokuhlelwa kwe-stroke, i-torque okanye i-radial thrust size. Ngenxa yokuba isixhobo sevalve yombane iimpawu zokusebenza kunye nesantya sokusetyenziswa kuxhomekeke kwisantya sokutshintsha kwevalve yombane inokulungelelaniswa, ulwakhiwo oludityanisiweyo, ukugcinwa lula, lulungele ukulawula igesi, amanzi, umphunga, zonke iintlobo zezinto ezonakalisayo, isanti, ioli, isinyithi solwelo kunye izinto ezine-radioactive kunye nezinye iintlobo zokuhamba kwamanzi. Isixhobo sevalve yombane ngumatshini oyimfuneko ukukhuthaza ulawulo lwenkqubo yevalvu yesango, ulawulo oluzenzekelayo nolawulo olukude. Ukuhamba kwayo kunokulungiswa ngokuhlelwa kwe-stroke, i-torque okanye i-radial thrust size. Ngenxa yokuba iimpawu zokusebenza kunye nesantya sokusetyenziswa kwesixhobo sevalve yombane ilele kuhlobo lwevalve, inkqubo yokusebenza yesixhobo kunye nendawo yevalve yesango kumbhobho okanye isixhobo, ukhetho oluchanekileyo lwesixhobo sevalve yombane kubaluleke kakhulu ukunqanda. ukwenzeka kwemeko yomthwalo ogqithisiweyo (umzuzu wokudlulisa umsebenzi uphezulu kune-torque yokusebenza). Ngenxa yokuba isixhobo sombane kwivalve yombane sisixhobo somatshini, imeko yalo yomsebenzi ngalo monakalo wemeko yomsebenzi mkhulu kakhulu. Ngokuqhelekileyo, indawo yeofisi apho i-valve yombane ikhona inala manqaku alandelayo: 1, kunye nomzimba womoya ovuthayo, onokutsha okanye umsi wendawo yendalo; 2. Indawo yokuhlala kwiinqanawa zokulwa kunye neenqanawa ezintsha zeenqanawa (ezinokumelana nokugqwala, i-aspergillus flavus, imanzi kunye nokubanda); 3. Iindawo ezinentshukumo enamandla; 4. Iindawo ezilungele iingozi zomlilo; 5, indawo emanzi ebandayo, indawo eyomileyo yemozulu yetropiki; I-6, iqondo lobushushu lemathiriyeli yombhobho ukuya kuma-480 ℃; 7. Ukufakwa kwangaphakathi okanye ukusetyenziswa kwangaphandle kunye namanyathelo okukhusela; 8, indibano yangaphandle yangaphandle, umoya opholileyo, isanti, umbethe wasekuseni, umhlwa welanga; 9, ubushushu bokusebenza bungaphantsi kwe -20℃; 10. Kulula ukuntywiliselwa emanzini okanye ukucwiliswa emanzini; 11. Yiba nommandla wendalo wezinto ezinemitha yemitha (izixhobo zamandla enyukliya kunye nofakelo lovavanyo lwesiqalelo seradioactive); Kwi-valve yombane phantsi kwendawo engasentla, isakhiwo sayo sombane, izixhobo kunye namanyathelo okukhusela ahlukeneyo. Ke ngoko, isixhobo sombane sevalve ehambelanayo kufuneka sikhethwe ngokwemeko yeofisi engentla. Isixhobo sombane seValve kukukhuthaza ulawulo lwenkqubo yevalve yesango, ulawulo oluzenzekelayo kunye nolawulo olukude lwezixhobo zomatshini eziyimfuneko, intshukumo yayo inokulungiswa ngolungelelwaniso lokuhamba, itorque okanye ubungakanani beradial thrust. Ngenxa yokuba iimpawu zokusebenza kunye nesantya sokusetyenziswa kwesixhobo sombane sevalve ilele kuhlobo lwevalve, inkqubo yokusebenza yesixhobo kunye nendawo yevalve yesango kumbhobho okanye isixhobo, ukhetho oluchanekileyo lwesixhobo sombane sevalve lubaluleke kakhulu ukunqanda. iimeko zokulayisha ngaphezulu (i-torque yokusebenza iphezulu kunetorque yokusebenza). Ngokubanzi, isiseko esibalulekileyo sokhetho oluchanekileyo lwezixhobo zombane zevalve ngolu hlobo lulandelayo: Itorque esebenzayo: itorque esebenzayo yeyona parameter isisiseko sesixhobo sombane sevalve. I-torque ephuma kwisixhobo sombane kufuneka ibe yi-1.2 ~ 1.5 amaxesha e-torque yangempela yokusebenza yevalve yesango. Eyona nto iphambili yesixhobo sombane sevalve ineendidi ezimbini: enye ayixhotyiswanga nge-thrust disc, itorque ethunyelwa ngaphandle kwangoko; Enye ixhotyiswe nge-disc ye-thrust kunye ne-torque ephumayo iguqulelwa kwi-thrust ephumayo ngokwe-stem nut kwi-disc thrust. Inani leenguqu zokujikeleziswa kwe-shaft ye-input: inani lokujika kwe-shaft ye-input ye-valve yesixhobo sombane linxulumene nobubanzi obuqhelekileyo bevalve, umgama wesihlalo kunye nenani lezikrufu. Kufuneka ibalwe ngokwe-M = H/ZS (M lilonke inani leenguqu zokujikeleza ekufuneka isixhobo sombane sidibane nazo, H ubude obunxulumene nokuvulwa kwevalvu yesango, i-S yi-screw pitch ye-valve seat drive system, kwaye u-Z linani lezikrufu zesitulo sevalvu). Indawo yokuhlala: Izivalo zesango ezijikelezayo ezininzi azinakufakwa njengezivalo zombane ukuba isixhobo sombane sivumela indawo yesitulo esikhulu esiceliweyo ukuba ingangeni kwisiqu sevalve enikiweyo. Ngoko ke, i-diameter yegama le-shaft yokufaka i-hollow yesixhobo sombane kufuneka idlule i-diameter ye-stem yevalve yentonga evulekileyo. Kwezinye iivalve zesango ezijikelezayo kunye neentsimbi ezivulekileyo zesango kwiivalve zesango ezijikelezayo ezininzi, nangona kungekho mfuneko yokuba nexhala malunga nengxaki yobubanzi besihlalo, indawo yokuvula isihlalo sevalve kunye nobukhulu begroove kufuneka kuthathelwe ingqalelo ekukhetheni indibano. ukwenzela ukuba kusebenze okuqhelekileyo emva kokudibanisa. Umlinganiselo wesantya esithathwayo: Ukuba isantya sokuvula kunye nokuvala i-valve ikhawuleza kakhulu, kulula ukuvelisa i-percussion phenomenon yamanzi. Ngoko ke, kufuneka isekelwe kuluhlu oluhlukeneyo lwesicelo, khetha isantya esifanelekileyo sokuvula nokuvala. Izixhobo zombane zevalve zineemfuno ezizodwa ezinokukhawulela i-torque okanye i-radial force. Ivalve jikelele isixhobo sombane sisebenzise udibaniso lwetorque olulinganiselweyo. Xa inkcazo yesixhobo sombane icacile, i-torque yayo yokuphatha inokuqinisekiswa. Ngokubanzi ekusebenzeni kwexesha elimiselweyo, i-motor akukho lula ukuyilayisha. Kodwa ukuba iimeko ezilandelayo zingabangela ukugqithiswa: okokuqala, umbane wangoku uphantsi, awukwazi ukufumana i-torque efunekayo, ukwenzela ukuba i-motor iyeke ukujikeleza; Okwesibini, i-torque ayilungiswanga ngokungalunganga ukukhawulela umbutho, ukwenzela ukuba idlule i-torque emisiwe, okubangelwa unobangela oqhubekayo we-torque eninzi, ukwenzela ukuba i-motor iyeke ukujikeleza; Isithathu sisicelo esiphakathi, idiphozithi yobushushu, ngaphezu kwemoto evumelekileyo yokwanda kobushushu; Okwesine, ngenxa yezizathu ezahlukahlukeneyo, ukungaphumeleli kwesekethe yokunikezelwa kwamandla kwintlangano ye-torque, ukwenzela ukuba i-torque inkulu kakhulu; Okwesihlanu, iqondo lobushushu lendawo yokusetyenziswa liphezulu kakhulu, kwaye ukunxulumana kunciphisa ukuhanjiswa kwe-thermal yemoto. Ngaphambili, indlela yokukhusela i-motor kukusetyenziswa kwe-circuit breaker, phezu kwe-valve ye-solenoid yangoku, i-relay yokushisa, umlawuli weqondo lokushisa, kodwa ezi ndlela zineenzuzo zazo. Akukho ndlela yokugcinwa ethembekileyo koomatshini bomthwalo oguquguqukayo njengezixhobo zombane. Ngoko ke, kufuneka kuthathwe amalungiselelo ahlukeneyo, ngokukodwa kukho ezimbini eziphambili: enye kukugweba ukulungiswa kwe-motor input current; Okwesibini kukugweba imeko evuthayo yemoto ngokwayo. Zombini iindlela, nokuba yeyiphi na iklasi iya kuthathela ingqalelo ukuhanjiswa kwe-thermal yemoto ngexesha elinikiweyo. Ngokubanzi, yeyiphi eyona ndlela isisiseko yokugcinwa kwe-overload: ukukhuselwa kokugqithiswa kokusebenza ngokuqhubekayo okanye ukuqala ukusebenza kwemoto, ukukhethwa komlawuli wokushisa; Ukugcina iimoto ezijikayo, khetha ukuhanjiswa kobushushu; Ngengozi yokhuseleko lwesiphaluka esifutshane, khetha i-breaker circuit okanye ngaphezulu kwevalve ye-solenoid yangoku.