Ukulungiswa njani iivalvu ezivuzayo?

Ukuba ivalve iyavuza, okokuqala kufuneka sifumane unobangela wokuvuza kwevalvu, size senze isicwangciso sokulondoloza isivalo ngokwezizathu ezahlukeneyo.Oku kulandelayo zizizathu eziqhelekileyo zokuvuza kwevalvu kunye nezisombululo.

1.Ukuvuza komzimba kunye neBhonethi

Isizathu:

①Umgangatho wokujula awukho phezulu, kwaye umzimba kunye nebhonethi ineziphene ezinje ngamadyungudyungu, ubume obuxengaxengayo kunye nokufakwa kwe-slag;

② ukukhenkceza ukuqhekeka;

③ I-welding engafanelekanga, kukho iziphene ezifana nokufakwa kwe-slag, uku-non-welding, iintanda zoxinzelelo, njl.;

④Ivalve yentsimbi yonakele emva kokubethwa yinto enzima.

Indlela yokugcina:

①Phucula umgangatho wokuphosa, kwaye wenze uvavanyo lwamandla ngokungqongqo ngokuhambelana nemimiselo phambi kofakelo;

②Iivalvu ezisebenza ngobushushu obuphantsi obunje ngo-0°C okanye ngaphantsi kwe-0°C, ukugcinwa kobushushu okanye ukuxubana kufuneka kwenziwe, kwaye iivalvu ezingasetyenziswayo kufuneka zikhutshwe kumanzi aqokelelweyo;

③ Umthungo wokuwelda womzimba wevalve kunye nebhonethi eyenziwe ngokuwelda iya kwenziwa ngokwemigaqo esebenzayo yokuwelda, kwaye ubhaqo lwesiphene kunye novavanyo lwamandla luya kwenziwa emva kokuwelda;

④ Akuvumelekanga ukutyhala kunye nokubeka izinto ezinzima kwivalve, kwaye akuvumelekanga ukubetha intsimbi kunye neevalvu ezingezizo ezentsimbi ngehamile yesandla.Ukufakwa kweevalve ezinobubanzi obukhulu kufuneka kube nezibiyeli.

2. Ukuvuza kwiPacking

Ukuvuza kwevalve, Esona sizathu kukupakisha ukuvuza.

Isizathu:

① Ukupakishwa akukhethwanga ngokuchanekileyo, akuchasananga nokubola kwe-medium, kwaye ayichasananga nokusetyenziswa koxinzelelo oluphezulu okanye i-vacuum, ubushushu obuphezulu okanye ubushushu obuphantsi bevalve;

②Ukupakishwa kufakwe ngokungalunganga, kwaye kukho iziphene ezinjengokutshintsha indawo enkulu kunye nencinci, i-screw-coiled joint imbi, kwaye ingaphezulu liqinile kwaye elisezantsi likhululekile;

③Ipakethe indala kwaye ilahlekelwe kukunwebeka kwayo kuba igqithile kubomi bayo benkonzo;

④Ukuchaneka kwesikhondo sevalve akukho phezulu, kwaye kukho iziphene ezinje ngokugoba, ukubola kunye nokuguga;

⑤ Inani leezangqa zokupakisha alanelanga, kwaye idlala alicinezelwa ngokuqinileyo;

⑥ Idlala, iibholiti, kunye nezinye iindawo zonakele, ukuze idlala lingacinezeleki;

⑦ Ukusebenza okungafanelekanga, amandla amaninzi, njl.;

⑧ Idlala ligqwethekile, kwaye isithuba phakathi kwedlala kunye nesiqu sincinci kakhulu okanye sikhulu kakhulu, okukhokelela ekugugeni kwesiqu kunye nomonakalo wokupakishwa.

Indlela yokugcina:

① Izinto kunye nohlobo lokupakisha kufuneka zikhethwe ngokweemeko zokusebenza;

②Ukupakisha kufuneka kufakwe ngokuchanekileyo ngokwemigaqo echaphazelekayo, ukupakishwa kufuneka kubekwe kwaye kucinezelwe nganye nganye, kwaye i-joint kufuneka ibe kwi-30℃ okanye i-45℃;

③ Ipakethe esele isetyenziswe ixesha elide kakhulu, indala kwaye yonakalisiwe kufuneka itshintshwe ngexesha;

④Isiqu kufuneka silungiswe kwaye silungiswe emva kokuba sigobile kwaye sigugile, kwaye ezo ezinomonakalo omkhulu kufuneka zitshintshwe ngexesha;

⑤ Ukupakishwa kufuneka kufakwe ngokwenani elichaziweyo lokujika, i-gland kufuneka iqiniswe ngokulinganayo kwaye ilungelelanise, kwaye umkhono woxinzelelo kufuneka ube ne-pre-tighten clearance engaphezu kwe-5mm;

⑥ Amadlala awonakeleyo, iibholithi kunye nezinye izinto kufuneka zilungiswe okanye zitshintshwe ngexesha;

⑦ Iinkqubo zokusebenza kufuneka zilandelwe, ngaphandle kwempembelelo yevili lesandla, isebenze ngesantya esiqhubekayo kunye namandla aqhelekileyo;

⑧ Iibholithi zedlala kufuneka ziqiniswe ngokulinganayo kunye ne-symmetrically.Ukuba i-gap phakathi kwe-gland kunye nesiqu sincinci kakhulu, i-gap kufuneka inyuswe ngokufanelekileyo;ukuba isithuba phakathi kwedlala kunye nesiqu sikhulu kakhulu, kufuneka sitshintshwe.

3. Ukuvuza komphezulu wokutywina

Isizathu:

① Umphezulu wokutywina awulingani kwaye awukwazi ukwenza umgca oqinileyo;

②Umbindi ophezulu womdibaniso phakathi kwesiqu sevalve kunye nenxalenye yokuvala uxhonyiwe, awuchanekanga okanye unxitywe;

③Isikhondo sevalvu igobile okanye ayidityaniswanga kakuhle, ibangela ukuba indawo evalayo ijike okanye iphume kulungelelwaniso;

④ Umgangatho wesixhobo sokutywina asikhethwanga kakuhle okanye ivalve ayikhethwanga ngokweemeko zokusebenza.

Indlela yokugcina:

①Ngokuhambelana neemeko zokusebenza, izinto kunye nohlobo lwegasket zikhethwe ngokuchanekileyo;

②Uhlengahlengiso olucokisekileyo, ukusebenza kakuhle;

③ Iibholithi kufuneka ziqiniswe ngokulinganayo kwaye ngokulinganayo.Ukuba kuyimfuneko, i-torque wrench kufuneka isetyenziswe.Amandla okuqinisa kwangaphambili kufuneka ahlangabezane neemfuno kwaye akufanele abe mkhulu kakhulu okanye omncinci.Kufuneka kubekho imvume ethile yangaphambili yokuqinisa phakathi kwe-flange kunye noxhumo oludibeneyo;

④Indibano yegasket kufuneka ilungelelaniswe embindini, kwaye amandla kufuneka afane.I-gasket ayivumelekanga ukuba idibanise kwaye isebenzise i-gaskets kabini;

⑤ Ukuba umphezulu wokutywina omileyo udliwe, wonakaliswe, kwaye umgangatho wokulungisa awuphakami, kufuneka ulungiswe, ucolwe, ujongwe ukuba ufakwe umbala, ukuze indawo yokutywina emileyo ihlangabezane neemfuno ezifanelekileyo;

⑥ Nika ingqalelo ekucoceni xa ufaka i-gasket, indawo yokutywina kufuneka icocwe nge-kerosene, kwaye i-gasket ayifanele iwe phantsi.

4. Ukuvuza kwindibaniselwano yeringi yokutywina

Isizathu:

① Umsesane wokutywina awusongwanga ngokuqinileyo;

②Iringi yokutywina idityaniswe kunye nomzimba, kwaye umgangatho womphezulu uphantsi;

③Intambo yoqhagamshelo, isikrufu kunye nomsesane woxinzelelo womsesane wokutywina zikhululekile;

④Uqhagamshelwano lomsesane wokutywina ludlekile.

Indlela yokugcina:

①Ukuvuza kwindawo yokutywina kunye nendawo yokuqengqeleka kufuneka kutofwe ngento encamathelayo emva koko ilungiswe ngokuqengqeleka;

②Iringi yokutywina kufuneka iphinde idityaniswe ngokweenkcukacha ze-welding.Ukuba i-weld engaphezulu ayinakulungiswa, i-welding yokuqala kunye nokulungiswa kuya kususwa;

③ Susa isikrufu kwaye ucinezele umsesane, coca, buyisela iindawo ezonakeleyo, sila indawo yokutywina phakathi kwetywina kunye nesitulo soqhagamshelwano, kwaye uphinde udibanise.Kwiindawo ezinomonakalo omkhulu wokugqwala, unokulungiswa nge-welding, i-bonding kunye nezinye iindlela;

④Umphezulu wokudibanisa umsesane wokutywina udliwe kwaye unokulungiswa ngokusila, ukudibanisa kunye nezinye iindlela.Ukuba ayinakulungiswa, umsesane wokutywina kufuneka utshintshwe.

5. Indawo yokuvala iyawa kwaye ivuze

Isizathu:

①Ukusebenza kumbi, ukuze indawo yokuvala ibambeke okanye idlule kwiziko eliphezulu elifileyo, kwaye umdibaniso wonakaliswe kwaye wophukile;

②Udibaniso lwenxalenye yokuvala ayiqini, kwaye ikhululekile kwaye iyawa;

③ Izinto zesihlanganisi azichanekanga, kwaye azikwazi ukumelana nokonakala kwendawo ephakathi kunye nokunxitywa koomatshini.

Indlela yokugcina:

① Ukusebenza ngokuchanekileyo, vala ivalve ayikwazi ukusebenzisa amandla amaninzi, vula ivalve ayinakudlula iziko eliphezulu lokufa, emva kokuba ivalve ivuliwe ngokupheleleyo, ivili lesandla kufuneka liguqulwe kancinci;

②Uqhakamshelwano phakathi kwendawo yokuvala kunye nesiqu sevalve kufuneka luqine, kwaye kufuneka kubekho i-backstop kumdibaniso othungelweyo;

③ Izibophelelo ezisetyenziselwa ukudibanisa indawo yokuvala kunye nesiqu sevalve kufuneka imelane nokubola kwendawo kwaye zibe namandla athile omatshini kunye nokumelana nokunxiba.