5 Amaphuzu Abalulekile okufanele uwakhumbule mayelana nokufakwa kwevalvu.

5 Amaphuzu Abalulekile okufanele uwakhumbule mayelana nokufakwa kwevalvu. I-1 Isiqondiso nendawo Ama-valve amaningi aqondisayo Isibonelo, i-valve yeglobhu, i-throttle valve, i-valve yokunciphisa ingcindezi, i-valve yokuhlola, njll., uma ifakwe ngokuhlehlayo, izothinta umphumela wokusebenzisa kanye nempilo (njenge-throttle valve), noma ingasebenzi. sebenza nhlobo (njenge-valve yokunciphisa ingcindezi), futhi ubangele ngisho nengozi (njenge-valve yokuhlola). Amavalvu avamile anezimpawu eziqondisayo emzimbeni. Uma kungenjalo, kufanele ikhonjwe ngendlela efanele ngokuvumelana nesimiso sokusebenza kwe-valve. Igumbi le-valve elizungeze i-valve yembulunga alilingani, liwuketshezi lokulivumela lisuka phansi liye phezulu ngembobo ye-valve, ngakho ukumelana noketshezi kuncane (kunqunywa ukuma), ukonga umsebenzi ovulekile (ngenxa yokucindezela okuphakathi phezulu) , ivaliwe ngemva kokupakishwa kwengcindezi ephakathi, kulula ukuyilungisa, yingakho i-valve yomhlaba ingakwazi ukufaka iqiniso. Amanye ama-valve anezici zawo siqu. Isikhundla sokufakwa kwe-valve kufanele kube lula ukusebenza Ngisho noma ukufaka kunzima okwesikhashana, kuyadingeka ukucabangela umsebenzi wesikhathi eside womqhubi. Isondo lesandla se-valve elingcono nokuqondisa kwesifuba (ngokuvamile amamitha angu-1.2 ukusuka endaweni yokusebenza), ukuze ukuvulwa nokuvala kwe-valve kube umzamo omncane. Isondo lesandla sevalvu yaphansi kufanele libheke phezulu futhi lingatsheki ukuze kugwenywe ukusebenza kabi. I-valve yomshini wodonga incike emishinini, futhi opharetha kufanele ashiywe endaweni emile. Ukuze ugweme ukusebenza kwesibhakabhaka, ikakhulukazi i-asidi ne-alkali, imidiya enobuthi, ngaphandle kwalokho ayiphephile. Isango akufanele liguqulwe (okungukuthi, isondo lesandla liphansi), ngaphandle kwalokho okuphakathi kuzogcinwa esikhaleni sekhava isikhathi eside, kulula ukugqwala isiqu, futhi kwezinye izidingo zenqubo taboo. Kunzima kakhulu ukufaka esikhundleni sokupakisha ngesikhathi esifanayo. Vula AMAVAVAVA WE-STEM GATE, UNGAFAKI ngaphansi komhlaba, ngaphandle kwalokho ngenxa yokugqwala okumanzi kwesiqu esivelile. Phakamisa i-valve yokuhlola, ukufakwa ukuze uqinisekise ukuthi i-valve disc ime mpo, ukuze i-lift iguquguquke. Swayipha i-valve yokuhlola, lapho ifakiwe ukuze kuqinisekiswe ukuthi izinga lephinikhodi, ukuze linyakaze liguquguquke. I-valve yokunciphisa umfutho izofakwa iqonde epayipini elivundlile, futhi akufanele itshekele kunoma iyiphi indlela. 2 Umsebenzi Wokwakha Ukufakwa nokwakhiwa kufanele kuqaphele, ungashayi i-valve eyenziwe ngezinto eziphukayo. Ngaphambi kokufaka Zonke izinhlobo ze-valve kanye nokucaciswa kufanele kubhekwe ngokucophelela ukuze kuthotshelwe izidingo zokuklama. (Hlola ukuthi ANGASETSHENZISWA EZIMBENI EZIDINGEKAYO ngokwemodeli ye-valve kanye nemiyalelo yefekthri, futhi wenze ukuhlolwa komfutho wamanzi noma womoya uma kunesidingo.) Ngaphezu kwalokho, kufanele futhi kubhekwe ukuthi ukupakisha kuphelele yini, ukuthi ibhawodi lendlala linayo yini. isibonelelo sokulungiswa esanele, nokuhlola ukuthi isiqu ne-disc zizwakala yini, ukuthi kukhona yini into ebambekile kanye ne-skew. Indawo yokuvala yediski ye-valve kufanele ivalwe ngokuqinile, futhi ikhwalithi yentambo kufanele ihlolwe ama-valve anentambo. Amavalvu angafaneleki NGEKE AFAKWE futhi azopakishwa ngokwehlukana noma amakwe. *** Imfucumfucu kuvalvu. Inqubo yokufaka Lapho UPHAKAMISA IVAVVU, INTAMBO AKUMELE IBOSHWE ESANDWENI NOMA ISIQINISEKISO UKUZE UGWEME UKULIMALA KWALEZI ZINGXENYE. KUFANELE KUBOSHWE EMHLABENI. Umugqa lapho i-valve ixhunywe khona kufanele ihlanzwe. Umoya ocindezelwe ungasetshenziselwa ukushaya amafayili e-iron oxide, isihlabathi, i-welding slag nezinye izinhlobo. Lezi mfucumfucu, akulula nje ukunwaya indawo yokuvala ye-valve, izinhlayiya ezinkulu zemfucumfucu (njenge-welding slag), kodwa futhi zingavimba i-valve encane, ukuze ukwehluleka kwayo. Lapho UFAKA I-VALVE YESIKREWU, UKUPHAKISWA KOKUVALWA (INTAMBO KAmafutha e-aluminium NOMA Ibhande lezinto ezibonakalayo le-PTFE RAW) kufanele liboshwe kuntambo yepayipi, ungangeni ku-valve, ukuze ugweme ivolumu yememori ye-valve, ithinte ukugeleza okuphakathi. Lapho ufaka ama-valve e-flange, qaphela ukuqinisa ama-bolts ngokulinganayo nangokulinganayo. I-valve flange kanye ne-pipe flange kufanele ihambisane, imvume inengqondo, funa i-valve ikhiqize ukucindezela okukhulu, ngisho nokuqhekeka. Ngezinto eziqinile futhi hhayi amandla aphezulu we-valve, ukunakwa okukhethekile kufanele kukhokhwe. I-valve ezoshiselwa ngepayipi kufanele ifakwe endaweni eshiselwe kuqala, khona-ke ingxenye evaliwe izovulwa ngokugcwele, bese i-welded ifile. 3 Izinyathelo Zokuvikela Amanye ama-valve kumele futhi abe nesivikelo sangaphandle, okuwukugcina ukushisa nokugcina ukubanda. I-insulation layer kwesinye isikhathi ixutshwa nemigqa yesitimu esishisayo. Hlobo luni lwe-valve okufanele lube ukushisa noma ukubanda, ngokuya ngezidingo zokukhiqiza. Empeleni, lapho medium valve ukunciphisa izinga lokushisa kakhulu, kuzothinta ukusebenza kahle ukukhiqizwa noma valve eqandisiwe, udinga ukufudumala, ngisho mix ukushisa; Lapho i-valve ingenalutho, ingalungile ekukhiqizeni noma ibangele isithwathwa nezinye izinto ezimbi, udinga ukubanda. Izinto zokufakelwa i-asbestos, uboya be-slag, uboya bengilazi, i-perlite, i-diatomite, i-vermiculite, njll; Izinto zokupholisa zingukhokho, i-perlite, igwebu, ipulasitiki nokunye. 4 I-Bypass nemitha Amanye ama-valve, ngaphezu kwezindawo zokuvikela ezidingekayo, nawo ane-bypass kanye nezinsimbi. I-bypass ifakiwe. Kulula ukulungisa isicupho. Amanye ama-valve, nawo afakwe i-bypass. Ukufakwa kwe-bypass kuncike esimweni se-valve, ukubaluleka, kanye nezidingo zokukhiqiza. 5 Ukupakisha esikhundleni se-Stock valve, ukupakisha okuthile akubanga kuhle, kanti okunye akuhambisani nokusetshenziswa kwemidiya, okudingeka kuthathelwe indawo yokupakisha. I-Valve factory ayikwazi ukucabangela ukusetshenziswa kwezinkulungwane zezinhlobo ezahlukene zemidiya, ibhokisi lokupakisha lihlala ligcwele impande evamile, kodwa lapho lisetshenziswa, kufanele livumele ukupakisha phakathi ukuze livumelane. Uma ushintsha ukupakisha, cindezela uzungeleze ngomjikelezo. Umthungo ngamunye wendandatho ukuya kuma-degree angama-45 kufanelekile, indandatho futhi ikhale ivuleke ngama-degree angama-180. Ukuphakama kokupakisha kufanele kucabangele i-leeway ukuze indlala iqhubeke nokucindezela, futhi manje kuyadingeka ukuvumela ingxenye engezansi ye-gland icindezele ikamelo lokupakisha ekujuleni okufanele, okungase kube ngu-10-20% wokujula okuphelele igumbi lokupakisha. Kuma-valve afunayo, i-engeli ehlangene ingama-degree angama-30. Umthungo ophakathi kwendandatho nendandatho inyakaza ngamadigri ayi-120. Ngaphezu kokupakisha, kodwa futhi ngokusho kwesimo esithile, ukusetshenziswa kwe-rubber O-ring (irabha yemvelo imelana no-60 degrees Celsius i-alkali ebuthakathaka, i-butadiene injoloba imelana no-80 degrees Celsius ikristalu kawoyela, i-Fluorine iraba imelana nezinhlobonhlobo zokubola. imidiya engaphansi kuka-150 degrees Celsius) indandatho emithathu eyisitaki ye-polytetrafluoron (imelana nemidiya egqwalayo eqinile engaphansi kuka-200 degrees Celsius) indandatho yesitsha senayiloni (imelana no-120 degrees Celsius ammonia, alkali) nokunye ukugcwaliswa okwenza. Ungqimba lwetheyiphu ye-TEflon eluhlaza lungathuthukisa umphumela wokuvala futhi lunciphise ukugqwala kwe-electrochemical kwesiqu se-valve. Lapho ucindezela isithokelo, vula isiqu ngesikhathi esifanayo ukugcina nxazonke ngokulinganayo, futhi uvimbele ukufa kakhulu, qinisa indlala ukuphoqa ngokulinganayo, awukwazi ukutsheka. Kubalulekile ukugcina la maphuzu engqondweni mayelana nokufakwa kwe-valve! Izinga lokufakwa kwe-valve lithinta ngokuqondile ukusetshenziswa, ngakho-ke kufanele kuqashelwe ngokucophelela. (a) indlela yokufaka i-valve nendawo yokuma Ama-valve amaningi ane-directional, njenge-globe valve, i-throttle valve, i-valve yokunciphisa ingcindezi, i-valve yokuhlola, njll., uma ifakwe ngokuhlehla, izophazamisa ukusetshenziswa komphumela kanye nempilo (njenge-throttle i-valve), noma ingasebenzi nhlobo (njenge-valve yokunciphisa ingcindezi), futhi ibangele ingozi (njenge-valve yokuhlola). I-valve evamile, kunophawu lokuqondisa emzimbeni we-valve; Uma kungenjalo, kufanele ikhonjwe ngendlela efanele ngokuvumelana nesimiso sokusebenza kwe-valve. Igumbi le-valve elizungeze i-valve yembulunga alilingani, liwuketshezi lokulivumela lisuka phansi liye phezulu ngembobo ye-valve, ngakho ukumelana noketshezi kuncane (kunqunywa ukuma), ukonga umsebenzi ovulekile (ngenxa yokucindezela okuphakathi phezulu) , ivaliwe ngemva kokupakishwa kwengcindezi ephakathi, kulula ukuyilungisa, yingakho i-valve yomhlaba ingakwazi ukufaka iqiniso. Amanye ama-valve anezici zawo siqu. I-valve INSTALLATION POSITION, kufanele ibe lula ukuyisebenzisa: NOMA ngabe ukufaka kunzima okwesikhashana, kodwa nomsebenzi wesikhathi eside womsebenzisi. Isondo lesandla se-valve nokuqondisa kwesifuba (ngokuvamile amamitha angu-1.2 ukusuka endaweni yokusebenza), ukuze ukuvulwa nokuvala kwe-valve kube umzamo omncane. Isondo lesandla sevalvu yaphansi kufanele libheke phezulu futhi lingatsheki ukuze kugwenywe ukusebenza kabi. I-valve yomshini wodonga incike emishinini, futhi opharetha kufanele ashiywe endaweni emile. Ukuze ugweme ukusebenza kwesibhakabhaka, ikakhulukazi i-asidi ne-alkali, imidiya enobuthi, ngaphandle kwalokho ayiphephile. Isango akufanele liguqulwe (okungukuthi, isondo lesandla liphansi), ngaphandle kwalokho okuphakathi kuzogcinwa esikhaleni sekhava isikhathi eside, kulula ukugqwala isiqu, futhi kwezinye izidingo zenqubo taboo. Kunzima kakhulu ukufaka esikhundleni sokupakisha ngesikhathi esifanayo. Vula AMAVAVAVA WE-STEM GATE, UNGAFAKI ngaphansi komhlaba, ngaphandle kwalokho ngenxa yokugqwala okumanzi kwesiqu esivelile. Phakamisa i-valve yokuhlola, ukufakwa ukuze uqinisekise ukuthi i-valve disc ime mpo, ukuze i-lift iguquguquke. Swayipha i-valve yokuhlola, lapho ifakiwe ukuze kuqinisekiswe ukuthi izinga lephinikhodi, ukuze linyakaze liguquguquke. I-valve yokunciphisa umfutho izofakwa iqonde epayipini elivundlile, futhi akufanele itshekele kunoma iyiphi indlela. (2) ukufakwa kwe-valve nokwakhiwa Ukufakwa nokwakhiwa kufanele kuqaphele, ungashayi i-valve eyenziwe ngezinto eziphukayo. Ngaphambi KOKUFAKA, IVAVU KUFANELE IYAHLOLWA UKUZE kubhekwe imininingwane KANYE namamodeli ukuze kubonakale noma yimuphi umonakalo, ikakhulukazi wesiqu. Futhi vula izikhathi ezimbalwa ukuze ubone ukuthi i-skewed, ngoba ngesikhathi sokuthutha, kulula ukushaya i-stem skewed. Futhi *** udoti ku-valve. UMA UPHAKAMISA IVAVAVU, INTAMBO AKUMELE IBOSHWE ESANDWENI NOMA ISIQINISEKISO UKUZE UGWEME UKULIMALA KWALEZI ZINgxenyana. KUFANELE KUBOSHWE EMHLABENI. Umugqa lapho i-valve ixhunywe khona kufanele ihlanzwe. Umoya ocindezelwe ungasetshenziselwa ukushaya amafayili e-iron oxide, isihlabathi, i-welding slag nezinye izinhlobo. Lezi mfucumfucu, akulula nje ukunwaya indawo yokuvala ye-valve, izinhlayiya ezinkulu zemfucumfucu (njenge-welding slag), kodwa futhi zingavimba i-valve encane, ukuze ukwehluleka kwayo. Lapho UFAKA I-VALVE YESIKREWU, UKUPHAKISWA KOKUVALWA (INTAMBO KAmafutha e-aluminium NOMA Ibhande lezinto ezibonakalayo le-PTFE RAW) kufanele liboshwe kuntambo yepayipi, ungangeni ku-valve, ukuze ugweme ivolumu yememori ye-valve, ithinte ukugeleza okuphakathi. Lapho ufaka ama-valve e-flange, qaphela ukuqinisa ama-bolts ngokulinganayo nangokulinganayo. I-valve flange kanye ne-pipe flange kufanele ihambisane, imvume inengqondo, funa i-valve ikhiqize ukucindezela okukhulu, ngisho nokuqhekeka. Ngezinto eziqinile futhi hhayi amandla aphezulu we-valve, ukunakwa okukhethekile kufanele kukhokhwe. I-valve ezoshiselwa ngepayipi kufanele ifakwe endaweni eshiselwe kuqala, khona-ke ingxenye evaliwe izovulwa ngokugcwele, bese i-welded ifile. (3) izinyathelo zokuvikela ama-valve Amanye ama-valve kufanele futhi abe nesivikelo sangaphandle, okuwukugcina ukushisa nokugcina amakhaza. I-insulation layer kwesinye isikhathi ixutshwa nemigqa yesitimu esishisayo. Hlobo luni lwe-valve okufanele lube ukushisa noma ukubanda, ngokuya ngezidingo zokukhiqiza. Empeleni, lapho medium valve ukunciphisa izinga lokushisa kakhulu, kuzothinta ukusebenza kahle ukukhiqizwa noma valve eqandisiwe, udinga ukufudumala, ngisho mix ukushisa; Lapho i-valve ingenalutho, ingalungile ekukhiqizeni noma ibangele isithwathwa nezinye izinto ezimbi, udinga ukubanda. Izinto zokufakelwa i-asbestos, uboya be-slag, uboya bengilazi, i-perlite, i-diatomite, i-vermiculite, njll; Izinto zokupholisa zingukhokho, i-perlite, igwebu, ipulasitiki nokunye. (4) I-bypass ne-instrumentation Amanye ama-valve, ngaphezu kwezinsiza ezidingekayo zokuvikela, nawo ane-bypass kanye nezinsimbi. I-bypass ifakiwe. Kulula ukulungisa isicupho. Amanye ama-valve, nawo afakwe i-bypass. Ukufakwa kwe-bypass kuncike esimweni se-valve, ukubaluleka, kanye nezidingo zokukhiqiza. (5) Ukushintshwa kokupakisha i-Stock valve, ukupakisha okuthile akuzange kube kuhle, futhi okunye akuhambisani nokusetshenziswa kwemidiya, okudingeka kuthathelwe indawo yokupakisha. I-Valve factory ayikwazi ukucabangela ukusetshenziswa kwezinkulungwane zezinhlobo ezahlukene zemidiya, ibhokisi lokupakisha lihlala ligcwele impande evamile, kodwa lapho lisetshenziswa, kufanele livumele ukupakisha phakathi ukuze livumelane. Uma ushintsha ukupakisha, cindezela uzungeleze ngomjikelezo. Umthungo ngamunye wendandatho ukuya kuma-degree angama-45 kufanelekile, indandatho futhi ikhale ivuleke ngama-degree angama-180. Ukuphakama kokupakisha kufanele kucabangele i-leeway ukuze indlala iqhubeke nokucindezela, futhi manje kuyadingeka ukuvumela ingxenye engezansi ye-gland icindezele ikamelo lokupakisha ekujuleni okufanele, okungase kube ngu-10-20% wokujula okuphelele igumbi lokupakisha. Kuma-valve afunayo, i-engeli ehlangene ingama-degree angama-30. Umthungo ophakathi kwendandatho nendandatho inyakaza ngamadigri ayi-120. Ngaphezu kokupakisha, kodwa futhi ngokusho kwesimo esithile, ukusetshenziswa kwe-rubber O-ring (irabha yemvelo imelana no-60 degrees Celsius i-alkali ebuthakathaka, i-butadiene injoloba imelana no-80 degrees Celsius ikristalu kawoyela, i-Fluorine iraba imelana nezinhlobonhlobo zokubola. imidiya engaphansi kuka-150 degrees Celsius) indandatho emithathu eyisitaki ye-polytetrafluoron (imelana nemidiya egqwalayo eqinile engaphansi kuka-200 degrees Celsius) indandatho yesitsha senayiloni (imelana no-120 degrees Celsius ammonia, alkali) nokunye ukugcwaliswa okwenza. Ungqimba lwetheyiphu ye-TEflon eluhlaza lungathuthukisa umphumela wokuvala futhi lunciphise ukugqwala kwe-electrochemical kwesiqu se-valve. Lapho ucindezela isithokelo, vula isiqu ngesikhathi esifanayo ukugcina nxazonke ngokulinganayo, futhi uvimbele ukufa kakhulu, qinisa indlala ukuphoqa ngokulinganayo, awukwazi ukutsheka.