1. Jikelele
Lolu hlobo lwe-valve lwenzelwe ukuthi lube ukufakwa okuvulekayo nokuvaliwe ukugcina ukusebenza okufanele okusetshenziswe ohlelweni lwamapayipi ezimboni.
2. Incazelo Yomkhiqizo
2.1 Izidingo zobuchwepheshe
2.1.1 Idizayini Nokwenza Okujwayelekile: I-API 600 、 API 602
2.1.2 Izinga Lokuxhuma Lokuxhuma: ASME B16.5 njll
2.1.3 Ubuso Nobuso Ubukhulu Besilinganiso: ASME B16.10
2.1.4 Ukuhlolwa Nokuhlolwa: I-API 598 njll
Usayizi we-2.1.5: DN10 ~ 1200, Ingcindezi: 1.0 ~ 42MPa
2.2 Le valve ifakelwe ukuxhuma kwe-flange, i-BW connection manual eqhutshwa ngamaphayiphu esango. Isiqu sihamba siqonde mpo. IDiski ivala ipayipi ngesikhathi sokujikeleza kwesondo lesandla. IDiski disc ivula ipayipi ngesikhathi sokujikeleza kwewashi lesandla uphikisana nokuhamba kwewashi.
2.3 Sicela ubheke ukwakheka kwalo mdwebo olandelayo
2.4 Izingxenye Eziyinhloko Nokwenziwe
IGAMA | IZINTO |
Umzimba / Ibhonethi | I-WCB, LCB, WC6, WC9, CF3, CF3M CF8, CF8M |
Isango | I-WCB, LCB, WC6, WC9, CF3, CF3M CF8, CF8M |
Isihlalo | I-A105, LF2, F11, F22, F304, 304L, F316, 316L) |
Isiqu | F304 (304L 、 、 F316 (316L 、 2Cr13 ezinye1Cr13 |
Ukupakisha | I-Braved graphite & Flexible graphite & PTFE njll |
Bolt / Nut | 35/25 /35CrMoA / 45 |
Ibhasikidi | 304 (316 Graph + Graphite / 304 (316) + Gasket |
IsihlaloIringi / Idiski/ Ukubekwa uphawu |
13Cr, 18Cr-8Ni, 18Cr-8Ni-Mo, PP, PTFE, STL njll |
3. Isitoreji Nokunakekela & Ukufaka & Ukusebenza
3.1 Ukugcinwa Nokunakekelwa
3.1.1 Amaphayiphu kufanele agcinwe esimweni sangaphakathi. Izikhala zomgodi kufanele zimbozwe nge-plug.
3.1.2 Ukuhlolwa kwezikhathi ezithile nokuvunyelwa kuyadingeka kumaphayiphu agcinwe isikhathi eside, ikakhulukazi ekuvalweni kwendawo yokuhlanza. Akukho monakalo ovunyelwe. Ukumbozwa kuka-oyela kuceliwe ukugwema ukugqwala kobuso bemishini.
3.1.3 Ngokuphathelene nesitoreji se-valve ngaphezu kwezinyanga eziyi-18, kudingeka izivivinyo ngaphambi kokufakwa kwe-valve bese urekhoda umphumela.
3.1.4 Amaphayiphu kufanele ahlolwe ngezikhathi ezithile futhi alondolozwe ngemuva kokufakwa. Amaphuzu ayinhloko njengalawa angezansi:
1, uphawu ebusweni
2, isiqu kanye neziqu nut
3, Ukupakisha
4, Yangaphakathi ebusweni yokuhlanza umzimba futhi Bonnet.
3.2 Ukufaka
3.2.1 Phinda uhlole ukumakwa kwe-valve (Uhlobo, i-DN, Isilinganiso, Okokusebenza) okuhambisana nokumakwa okucelwe uhlelo lwephayiphi.
3.2.2 Kucelwa ukuthi kuhlanzwe indawo yonke yomgodi nokuvala uphawu ngaphambi kokufakwa kwe-valve.
3.2.3 Qinisekisa ukuthi amabhawodi aqinile ngaphambi kokufakwa.
3.2.4 Qinisekisa ukuthi ukupakisha kuqinile ngaphambi kokufakwa. Noma kunjalo, akufanele kuphazamise ukunyakaza kwesiqu.
Indawo ye-Valve kufanele ilungele ukuhlolwa nokusebenza kwayo. Ipayipi evundlile iyathandwa. Gcina isondo lesandla phezulu bese unqika mpo.
I-3.2.6 Ye-valve yokuvala, ayifanele ukufakwa esimweni sokusebenza kwengcindezi ephezulu. Isiqu kufanele sigwenywe ukuba sonakaliswe.
3.2.7 Kwi-valve Welding Welding, kucelwa ukunakwa ngesikhathi sokuxhunywa kwe-valve njengokulandelayo:
1, Welder kufanele eqinisekisiwe.
2, Welding inqubo ipharamitha kumele kube ngokuvumelana isihlobo isitifiketi impahla impahla.
3, Filler impahla Welding umugqa, ukusebenza kwamakhemikhali kanye mechanical kanye anti-ukugqwala kufanele kufane nomzimba impahla yomzali.
3.2.8 Ukufaka i-valve kufanele kugweme ingcindezi ephezulu evela kokunamathiselwe noma amapayipi.
3.2.9 Ngemuva kokufakwa, ama-valve kufanele avulwe ngesikhathi sokuhlolwa kwengcindezi yepayipi.
3.2.10 I-Support Point: uma ipayipi liqinile ngokwanele ukusekela isisindo se-valve nokusebenza kwe-torque, iphoyinti lokusekela aliceliwe. Ngaphandle kwalokho kuyadingeka.
3.2.11 Ukuphakamisa: Ukuphakamisa isondo ngesandla akuvunyelwe kuma-valve.
Ukusebenza nokusetshenziswa
3.3.1 Amaphayiphu esango kufanele avulwe ngokuphelele noma avaliwe ngesikhathi sokusetshenziswa ukugwema ukubekwa kwendandatho yendawo yokuhlala nendawo yediski ebangelwe yisivinini esiphakathi. Azikwazi ukumangalelwa ngomthethonqubo wokugeleza.
3.3.2 Isondo lesandla kufanele lisetshenziselwe ukufaka ezinye izinsimbi ukuvula noma ukuvala ama-valve
3.3.3 Ngesikhathi sokushisa kwensiza okuvumelekile, ingcindezi esheshayo kufanele ibe ngaphansi kwengcindezi elinganisiwe ngokuya nge-ASME B16.34
3.3.4 Akukho monakalo noma isiteleka esivunyelwe ngesikhathi sokuhamba kwe-valve, ukufakwa nokusebenza.
3.3.5 Kala ithuluzi lokuhlola ukuhamba okungazinzile liyacelwa ukuthi lilawule futhi lisuse isici sokubola ukugwema ukonakala kwe-valve nokuvuza.
3.3.6 Ukwehliswa okubandayo kuzothonya ukusebenza kwe-valve, futhi izinsimbi zokulinganisa kufanele zisetshenziselwe ukunciphisa izinga lokushisa lokugeleza noma ukufaka i-valve esikhundleni.
3.3.7 Koketshezi oluzicasulayo, sebenzisa izinsimbi ezifanele zokulinganisa ukuqinisekisa ingcindezi esezindaweni ezisebenza kanye nokusebenza ayidluli lapho luzixhuma khona (ikakhulukazi ukukhanya kwelanga noma umlilo wangaphandle).
3.3.8 Uma kwenzeka uketshezi oluyingozi, njengeziqhumane, ezinokutsha, ezinobuthi, nemikhiqizo ye-oxidation, akuvumelekile ukufaka okunye endaweni yokupakisha ngaphansi kwengcindezi. Noma kunjalo, esimweni esiphuthumayo, akunconywa ukufaka esikhundleni sokupakisha ngaphansi kwengcindezi (yize i-valve inomsebenzi onjalo).
3.3.9 Qiniseka ukuthi uketshezi alungcolile, oluthinta ukusebenza kwe-valve, kungafaki okuqinile, ngaphandle kwalokho izinsimbi zokulinganisa ezifanele kufanele zisetshenziselwe ukususa ukungcola nokuqina okuqinile, noma ukumiselele ngolunye uhlobo lwe-valve.
3.3.10 Izinga lokushisa elisebenzayo
Izinto | Ithempelesha |
Izinto |
Ithempelesha |
WCB | -29 ~ 425 ℃ |
WC6 |
-29 ~ 538 ℃ |
I-LCB | -46 ~ 343 ℃ | WC9 | --29 ~ 570 ℃ |
CF3, CF3M) | -196 ~ 454 ℃ | CF8, CF8M) | -196 ~ 454 ℃ |
3.3.11 Qiniseka ukuthi impahla yomzimba we-valve ilungele ukusetshenziswa ekumelaneni nokubola nokugqwala okuvimbela indawo emanzi.
3.3.12 Ngesikhathi senkonzo, hlola ukubekwa uphawu kokusebenza ngokwethebula elingezansi:
Iphuzu lokuhlola | Ukuvuza |
Ukuxhuma phakathi kwe-valve yomzimba ne-valve bonnet |
UZero |
Ukupakisha uphawu | UZero |
Isihlalo somzimba se-Valve | Ngokwencazelo yobuchwepheshe |
3.3.13 Bhekisisa njalo ukugqokwa kwemali yokugibela yokuhlala, ukupakisha ukuguga nomonakalo.
3.3.14 Ngemuva kokulungiswa, hlanganisa futhi ulungise i-valve, bese uvivinya ukuqina kokusebenza bese wenza amarekhodi.
4. Izinkinga ezingaba khona, izimbangela nezinyathelo zokulungisa
Incazelo yenkinga |
Imbangela engenzeka |
Izinyathelo zokulungisa |
Ukuvuza lapho upakisha |
Ukupakisha okucindezelwe ngokwanele |
Qinisa kabusha inathi yokupakisha |
Ubuningi obunganele bokupakisha |
Faka ukupakisha okuningi |
|
Ukupakisha okonakele ngenxa yenkonzo yesikhathi eside noma ukuvikelwa okungafanele |
Miselela ukupakisha |
|
Ukuvuza ebusweni bokuhlala kwe-valve |
Ubuso bendawo yokuhlala engcolile |
Susa ukungcola |
Ubuso bokuhlala obugugile |
Yilungise noma ushintshe indandatho yesihlalo noma ipuleti le-valve |
|
Ubuso bendawo yokuhlala obonakele ngenxa yokuqina okuqinile |
Susa okuqinile ku-fluid, faka iringi yesihlalo noma ipuleti ye-valve, noma ubeke olunye uhlobo lwe-valve |
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Ukuvuza ekuxhumaneni phakathi kwe-valve body ne-valve bonnet |
Amabhawodi awafakwanga kahle |
Bopha amabhande ngendlela efanayo |
Ubuso bokubekwa kwebhonethi obonakele bomzimba we-valve ne-valve flange |
Yilungise |
|
I-gasket elimele noma ephukile |
Faka esikhundleni se-gasket |
|
Ukuzungezisa okunzima kwesondo lesandla noma ipuleti le-valve akunakuvulwa noma kuvalwe. |
Ukupakisha okuqiniswe kakhulu |
Khulula ngokufanele umuthi wokupakisha |
Ukusonteka noma ukugoba indlala yokuvala uphawu |
Lungisa indlala yokuvala uphawu |
|
I-valve yesiqu se-valve elimele |
Intambo elungile bese ususa okungcolile |
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Intambo ye-stem stem nut egugile noma ephukile |
Faka esikhundleni i-valve stem nut |
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Isiqu se-valve esigobekile |
Miselela isiqu se-valve |
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Indawo engcolile yomhlahlandlela we-valve plate noma umzimba we-valve |
Susa ukungcola endaweni yomhlahlandlela |
Qaphela: Umuntu osebenzela abantu kufanele abe nolwazi olufanele nesipiliyoni ngamaphayiphu okuvala amanzi esango lesango
Ukupakisha kwebhonethi yisakhiwo sokufaka amanzi emanzini, sizohlukaniswa nomoya ngenkathi ingcindezi yamanzi ifinyelela ku-0.6 ~ 1.0MP ukuqinisekisa ukusebenza kahle kokufaka umoya.
5.Isiqinisekiso:
Ngemuva kokuthi i-valve isetshenzisiwe, isikhathi sewaranti izinyanga eziyi-12, kepha asidluli izinyanga eziyi-18 ngemuva kosuku lokulethwa. Ngesikhathi sewaranti, umenzi uzohlinzeka ngensizakalo yokulungisa noma izingxenye ezisele mahhala ngomonakalo ngenxa yezinto ezibonakalayo, ubungcweti noma ukulimala uma umsebenzi usebenza kahle.
Isikhathi Iposi: Nov-10-2020