Taboo 21

Indawo yokufaka ayinaso indawo yokusebenza

Izinyathelo: Ngisho noma ukufaka kuyinselele ekuqaleni, kubalulekile ukucabangela umsebenzi wesikhathi eside womsebenzisi ngenkathi ubeka indawoi-valveukuze usebenze. Ukuze wenze ukuvula nokuvalai-valvekulula, kuhle ukubeka isondo le-valve ukuze lihambisane nesifuba (imvamisa iqhele ngamamitha angu-1.2 ukusuka endaweni yokuhlinza). Ukuze uvimbele ukusebenza okungekuhle, isondo lesandla sevalvu yokumisa kufanele libheke phezulu futhi lingasheleli. Amavalvu omshini wodonga nezinye izakhi kufanele zivumele isikhala esanele ukuze opharetha ame. Kuyingozi impela ukusebenza esibhakabhakeni, ikakhulukazi uma usebenzisa i-acid-base, imidiya eyingozi, njll.

Taboo 22

Amavalvu enziwe ngezinto eziba nomthelela

Izinyathelo: Lapho ufaka futhi wakha, qaphela futhi ugweme ukushaya ama-valve ezinto ezibonakalayo. Hlola i-valve, ama-specs, namamodeli ngaphambi kokufakwa, futhi ubheke noma yimuphi umonakalo, ikakhulukazi esiqwini se-valve. Isiqu se-valve kungenzeka sitshekele ngesikhathi sokuthunyelwa, ngakho-ke siphendule izikhathi ezimbalwa ukuze uhlole ukuthi siyikho yini. Hlanza i-valve yanoma iyiphi imfucumfucu futhi. Ukuze ugweme ukulimaza isondo lesandla noma isiqu se-valve lapho uphakamisa i-valve, intambo kufanele iboshelwe ku-flange kuneyodwa yalezi zingxenye. Ukuxhunywa kwepayipi lama-valve kudinga ukuhlanzwa.Ukukhipha amashiphu e-iron oxide, isihlabathi sodaka, i-slag yokushisela, nezinye izinhlobo, sebenzisa umoya ocindezelwe. Izinhlayiya ezinkulu ze-sundries, i-slag yokushisela enjalo, ingavimbela ama-valve amancane futhi iwenze angasebenzi ngaphezu kokunwaya kalula indawo yokuvala ye-valve. Ukuze uvimbele ukunqwabelana ku-valve kanye nokuphazamiseka kokugeleza kwe-medium, ukupakisha okuvala (i-hemp yomugqa kanye namafutha omthofu noma i-PTFE ye-tape yempahla eluhlaza) kufanele isongwe ochungechungeni lwepayipi ngaphambi kokunamathisela i-valve yesikulufu. Qinisekisa ukuthi uqinisa amabhawodi ngokulinganayo nangokulinganayo ngenkathi ufaka ama-valve ane-flanged. Ukuze ugweme i-valve ekukhiqizeni ukucindezela okukhulu noma okungenzeka kube nokuqhekeka, i-flange yepayipi kanye ne-valve flange kufanele ihambisane futhi ibe nenani elifanele lokuvunyelwa. Izinto eziqinile kanye nama-valve amandla aphansi adinga ukunakwa okukhethekile. Ama-valve ahlanganiswe ngamapayipi kufanele afakwe amabala kuqala, alandelwe ukuvuleka okuphelele kwezigaba zokuvala, futhi ekugcineni, ukushisela okufile.

Taboo 23

I-valve ayinakho ukugcinwa kokushisa kanye nezinyathelo zokulondoloza ukushisa

Izinyathelo: Amanye ama-valve ayadingeka futhi ukuze afake izici zokuvikela zangaphandle zokulondoloza ukushisa nokubanda. Ngezinye izikhathi ipayipi le-steam elishisayo liyengezwa kungqimba lwe-insulation. Uhlobo lwevalvu okufanele lugcinwe lufudumele noma lubanda luncike ezidingweni zokukhiqiza. Ngokombono, ukugcinwa kokushisa noma ngisho nokulandela ukushisa kuyadingeka uma okuphakathi ngaphakathi kwe-valve kuphola kakhulu, okuzonciphisa ukusebenza kahle kokukhiqiza noma kubangele ukuba i-valve iqhwa. Ngokufanayo, lapho i-valve ivezwa, engalungile ekukhiqizeni noma kubangele isithwathwa nezinye izinto ezingathandeki, i-valve idinga ukugcinwa ibanda. Izinto zokuvikela ezibandayo zihlanganisa ukhokho, i-perlite, igwebu, ipulasitiki, umhlaba we-diatomaceous, i-asbestos, uboya be-slag, uboya bengilazi, i-perlite, umhlaba we-diatomaceous, njll.

Taboo 24

I-Steam trap ayifakiwe i-bypass

Izinyathelo: Amanye ama-valve anamathuluzi nama-bypasses ngaphezu kwezici zokuvikela eziyisisekelo. Ukuze kulungiswe isicupho esilula, i-bypass ifakiwe. Kukhona ama-valve amaningi abekwe nge-bypass. Isimo, ukubaluleka, kanye nezidingo zokukhiqiza zevalvu zinquma ukuthi kufanele kufakwe yini indlela yokudlula.

Taboo 25

Ukupakisha akushintshwa njalo

Izinyathelo: Amanye ama-valve esitokweni adinga ukushintshwa ngoba awasebenzi noma awahambisani nendlela esetshenziswa ngayo. Ibhokisi lokugxusha lihlala ligcwele ukupakisha okuvamile futhi i-valve ibonakala ezinkulungwaneni zemidiya ehlukahlukene, noma kunjalo lapho i-valve isebenza, ukupakisha kufanele kube ngokwezifiso zemidiya. Cindezela ukupakisha endaweni ngokuzungeza imibuthano. I-seam ngayinye yendilinga kufanele ibe ngama-degree angu-45, futhi imigqa yemibuthano kufanele ibe ngama-degree angu-180 ngokuhlukana. Ingxenye engezansi yegland manje kufanele incindezelwe ekujuleni okufanele kwegumbi lokupakisha, okuvamise ukuba ngu-10–20% wengqikithi yokujula kwegumbi lokupakisha. Ubude bokupakisha kufanele bucabangele lokhu.I-engeli yomthungo yamavalvu anemibandela eqinile ingu-30 degrees. Imithungo yendilinga ihluka ngamadigri ayi-120 ukusuka komunye nomunye. Ama-O-rings amathathu erabha (irabha yemvelo imelana ne-alkali ebuthakathaka engaphansi kuka-60 degrees Celsius, irabha ye-nitrile imelana nemikhiqizo kawoyela engaphansi kuka-80 degrees Celsius, kanye nerabha eyifluorine imelana nemithombo yezindaba egqwalayo engaphansi kuka-150 degrees Celsius) nazo zingasetshenziswa, kuye ngezimo. , ngaphezu kwama-fillers okukhulunywe ngawo ngenhla. Amasongo esitsha senayiloni (ayikwazi ukumelana ne-ammonia ne-alkali engaphansi kuka-120 degrees Celsius), izindandatho ze-polytetrafluoroethylene elaminethiwe (zimelana nemithombo yezindaba egqwalayo eqinile engaphansi kuka-200 degrees Celsius), nezinye izigcwalisi ezinomumo. Gcoba ungqimba lwetheyiphu ye-polytetrafluoroethylene eluhlaza ngaphandle kwe-asbestos evamile ukupakishwa futhi unciphise ukuwohloka kwesiqu se-valve kusuka esenzweni se-electrochemical. Ukuze ugcine indawo ilingana futhi uyigcine ingafi kakhulu, phenya isiqu se-valve ngenkathi ucindezela ukupakisha. Ungatsheki ngenkathi uqinisa indlala ngomzamo ongashintshi.