Indlela yokwahlula phakathi kwevalvu yokungena nokuphumayo

Indlela yokwahlula phakathi kwevalvu yokungena nokuphumayo

Kule mihla, njengeshishini elikhula ngokukhawuleza kwishishini lemveliso yaseTshayina, iintlobo zeevalvu ziyanda, kwaye umgangatho kunye neemfuno zezinto zokwenziwa kweevalvu ziyaphucuka. Ivalve * * * isetyenziswa kwiindawo ezahlukeneyo, ngoko abantu abaninzi ngakumbi bakhetha imvelaphi yesivalo. Kufuneka siqwalasele ngakumbi xa sikhetha i-valve. Ukwahlula njani ukungenisa kunye nokuthunyelwa ngaphandle kwevalve? Yintoni umahluko phakathi kwevalve yokungena kunye ne-outlet? Kolu shicilelo, njengevalve iya kuphendula ukhetho lwevalvu yokungena neyokuphuma yenzelwe wena!
1, Ukwahlula njani indawo yokungena kunye nokuphuma kweivalve
Ukungenisa elizweni kubhekiselele kwiimveliso ukusuka kuphando ukuya kwimveliso ngokungqinelana ngqongqo nemigangatho yangaphandle. Iimveliso zasekhaya ziyilwe kwaye zenziwe ngabantu baseTshayina kwaye zisebenzisa iimveliso ezisemgangathweni zelizwe.
Emva kweminyaka yemizamo, iivalvu zaseTshayina zifumene iziphumo ezilungileyo kwimveliso kunye nokusetyenziswa. Nangona kunjalo, xa amashishini ethenga, abantu abaninzi baya kubeka kuqala iivalvu ezivela kumazwe angaphandle kwaye bangabi nathemba kwiivalvu zasekhaya.
Xa kuthengwa iivalve, abantu abaninzi banikela ingqalelo kumgangatho weevalvu. Indawo yokusebenza yevalve ihlwempuzekile, ngoko umgangatho kunye nobomi benkonzo yevalve kubaluleke kakhulu.
Ngenxa yokuqalisa kwangethuba kophando kwiivalvu zesixhobo kumazwe aphesheya, izixhobo zokusebenza kunye nenqanaba le-R & D zihambele phambili kakhulu kunezo zase China.
Kodwa kwiminyaka yakutshanje, umgangatho wevalve yaseTshayina uphuculwe kakhulu. Emva kwamashumi eminyaka yokufunxa kunye nokwetyisa, itekhnoloji yokuvelisa kunye nomgangatho weevalvu zesixhobo eTshayina ziphuculwe kakhulu.
Kwangaxeshanye, kubalulekile kushishino lwevalvu yaseTshayina * * ukuqhubela phambili nokuphucula umgangatho wemveliso kunye nomxholo wobugcisa, ukusebenzisana nabavelisi beevalvu zangaphandle ukuze ufumane iziphumo zokuphumelela, kwaye uphucula rhoqo kwaye ukhule kwinkqubo yokufunda.
2. Umahluko phakathi kwevalve yokungena kunye ne-outlet
1. Ubomi kunye nokuthembeka
Ngo-2021, ndathatha inxaxheba kuphando lwabavelisi abakhulu be-valve kumashishini abalulekileyo aseSinopec. Umamele izimvo kunye neengcebiso zamashishini aphambili eSinopec malunga neevalvu zolawulo ezisuka kumazwe angaphandle.
I-gap ephambili phakathi kwee-valve zokulawula zasekhaya kunye nezangaphandle zibonakaliswa kubomi benkonzo kunye nokuthembeka. Ngaphambili, umjikelo omkhulu wolondolozo lweshishini lepetrochemical yaseTshayina kunye neshishini lamandla laliyiminyaka eyi-1-1.5. Okwangoku, umjikelo omkhulu wolondolozo uye wandiswa ukuya kwiminyaka emi-4-5.
Kwezinye iimeko ezikhethekileyo, ukugcinwa akuvumelekanga nje ukuba i-valve yokulawula iqaliswe. Ukuba ingxaki yomgangatho wevalve yokulawula ikhokelela ekuvaleni, iya kuzisa ilahleko engenakulinganiswa kubasebenzisi, kwaye ilahleko yemihla ngemihla inokufikelela kumakhulu ezigidi okanye iibhiliyoni. Ke ngoko, abasebenzisi bangathanda ukuchitha izigidi okanye amashumi ezigidi zeeyuan ukuthenga iimveliso ezivela kumazwe angaphandle ezinobomi benkonzo ephezulu kunye nokuthembeka.
2. Izinto ezisisiseko kunye neenkqubo
Okwangoku, inqanaba letekhnoloji yokucwangcisa yabenzi bevalve yolawulo lwasekhaya liphuculwe kakhulu. Iileyile ze-NC kunye namaziko omatshini asetyenziswa ngokubanzi ukusetyenzwa, kwaye izixhobo zokulungisa ziphantse zifane naleyo yabenzi beevalvu zangaphandle.
Nangona kunjalo, amaninzi amacandelo abalulekileyo kwi-valve yokulawula, ukusuka entwasahlobo, i-diaphragm ukuya kwindandatho yokutywina (i-rubber okanye isinyithi), ine-gap ethile kunye neemveliso zangaphandle. Ngokukodwa, kukho iimveliso ezininzi okanye ngaphezulu kweshumi elinambini phesheya, ngelixa zimbini kuphela eTshayina.
Kukho umsantsa othile phakathi zasekhaya forgings enkulu die, castings high-uxinzelelo, tungsten carbide amacandelo abunjiweyo, ingxubevange enzima, ukuwelda ubuchwepheshe ukutshiza, ubuchwepheshe unyango ubushushu, ingakumbi ukusetyenziswa kwemathiriyeli ezizodwa kunye nobuchwepheshe angaphandle.
3. ULawulo loovimba
Abavelisi bevalvu yolawulo lwangaphandle bancamathela ukubaluleka okukhulu kulawulo lwefayile yomsebenzisi. I-valve nganye yokulawula inesiseko sedatha yesandi, kubandakanywa iifayile ezipheleleyo ezifana nabasebenzisi, iimeko zenkonzo kunye namadijithi, umhla wefektri, umhla wokuqhuba, iirekhodi zokugcinwa kunye nokutshintshwa kweengxenye. Xa abasebenzisi befuna, banokudlulisela yonke idatha yembali yeemveliso kwimizuzu embalwa.
4. Isoftware yokukhetha
Abavelisi bevalve yolawulo lwangaphandle (kunye noFisher njengo * *) banembali yokuvelisa iminyaka eyi-140 ukususela ekufikeni * * * kwevalve yokulawula ngo-1880, kwaye baye baqokelela amava atyebileyo kuyilo, ukuvelisa, ukufakela nokusetyenziswa.
UFisher akanazo kuphela izixhobo zovavanyo ezomeleleyo kunye nenkxaso yesixhobo, kodwa ukwanazo * * * iintlobo zemveliso kunye neenkcukacha. Isofthiwe yokukhetha inemisebenzi enamandla, i-prompts ecacileyo kunye epheleleyo, ukwenzela ukuba abasebenzisi bamkele ngokugqibeleleyo iimveliso ze-Fisher.
5. Izixhobo zokuvavanya
Isixhobo selabhoratri sabavelisi bevalvu yolawulo lwangaphandle (enoFisher njenge * *) sigqibelele. Ilabhoratri yabo inokugqiba uvavanyo lwe-CV (kV), uvavanyo lwe-FL, uvavanyo lwe-CG, uvavanyo lwe-XT, uvavanyo lwe-torque eguqukayo, uvavanyo oluguquguqukayo lwe-tensile, uvavanyo lobomi bomjikelezo, uvavanyo lobushushu obuphezulu kunye noluphantsi, njl.
Abavelisi bevalvu yolawulo lwasekhaya badla ngokuba nezixhobo zovavanyo lokuqukuqela kwamanzi kuphela, kwaye uninzi lwazo alukamkeli ukufunyanwa nokugcinwa kwedatha. Ukongeza, abanye abavelisi bevalvu yolawulo abaqeqeshiweyo abanayo nelebhu yokuqukuqela yokulinganisa ngokuchanekileyo i-coefficient yokulinganisa kunye neempawu zokuhamba kwevalve.
6. Ubunzulu benkqubo
Abavelisi bevalvu yolawulo lwangaphandle banabasebenzi abaninzi abaqeqeshiweyo kunye nabethutyana, abaqhelene kakhulu nenkqubo yokuvelisa amandla, i-petrochemical, intsimbi, isamente kunye namanye amashishini.
Uninzi lwaba bantu baxakeke ngumsebenzi owenziwayo kula mashishini angasentla. Bayaluqonda uhlobo, ukucaciswa kunye nokusetyenziswa kwezinto zevalve yokulawula kuxinzelelo lwesiza, ubushushu, uxinzelelo lokwahlukana, ukukhuhla, ukubola, ukubola, ukubola kwegesi kunye ne-flash, kunye nokunxibelelana neyunithi yoyilo kunye nomsebenzisi * * * phambi kokuthenga.
Khetha * * isivalo solawulo esilungele iimeko zokusebenza komsebenzisi, kwaye wenze ikhontrakthi esemthethweni emva kokuba yamkelwe ngumyili kunye nomsebenzisi. Abasebenzi benkxaso yobugcisa babavelisi beevalvu zolawulo lwasekhaya baphantse bangabi nabasebenzi abanalo mgangatho ubanzi womgangatho, owenza abavelisi bangakwazi ukunxibelelana nabasebenzisi.
7. Ukuphunyezwa okusemgangathweni
Imigangatho yemveliso kunye nokuveliswa kweevalvu zasekhaya kunye nezangaphandle ziyafana, kodwa iivalvu zolawulo lwangaphandle ziveliswa ngaphaya komgangatho, ngelixa iivalve zolawulo lwasekhaya ziveliswa emva komgangatho.
I-GB / t4213-2008 i-valve yokulawula i-pneumatic esiyisebenzisayo ngoku isetyenziswe iminyaka eyi-12, kwaye ezinye iziqulatho azisebenzi kwimveliso yangoku kunye nesicelo sentsimi.
Apha, ndicebisa ukuba "iqela lophando kwintsimi ye" valve yokulawula "kufuneka iququzelele abasebenzi abafanelekileyo ukuba bahlaziye umgangatho we-GB / t4213-2008 ivalve yokulawula umoya kwixesha elizayo.