Indlela yokukhetha ubungakanani obufanelekileyo be-Knife Gate Valve kwizicelo zaselwandle

Kubunjineli bezolwandle, yonke into efakwe kwinqanawa inefuthe ekuthembekeni, kukhuseleko, nakwindlela esebenza ngayo inkqubo. Phakathi kwezi zinto zibalulekileyo,ivalvu yesango lemelaidlala indima ekhethekileyo—ingakumbi kwiindawo apho kukho khona imithombo yamanzi etyebileyo, ebhityileyo, okanye eqinileyo. Ukusuka kwimibhobho yamanzi e-ballast ukuya kwiinkqubo zamanzi amdaka, ukukhupha amanzi amdaka, imigca yokukhupha amanzi, kunye nokudluliselwa kodaka, iivalvu zesango lemela ziqinisekisa ulawulo lokuhamba kwamanzi oluzinzileyo kunye nokuvalwa okuthembekileyo naphantsi kweemeko ezinzima. Ukukhetha ilungelouhloboivalvu yesango lemela ibalulekile, kodwa ukukhethaubungakanani obuchanekileyoyiloo nto imisela ukusebenza kwexesha elide kunye nokuhambelana kwenkqubo.

Ukuqonda Indima Yeevalvu Zesango Lemela Kwiinkqubo Zolwandle

Iivalvu zesango lemela zenziwe ngesango elibukhali elikwaziyo ukusika izinto eziqinileyo ezixhonyiweyo, inkunkuma, okanye udaka. Oku kuzenza zifaneleke ngakumbi kwezi zinto zilandelayo:

• ①Iinkqubo zokucoca amanzi ze-Ballast

• ②Iipayipi zamanzi amdaka kunye nelindle zaselwandle

• ③Ukuthuthwa kodaka kunye nokuthuthwa kodaka

• ④Iinkqubo zokukhupha amanzi kwigumbi leenjini

• ⑤Iisekethe zamanzi ezipholileyo kwiindawo ezinesediment ephezulu

Ubuchule babo bokubonelela ngomjelo opheleleyo kunye nokunciphisa uxinzelelo kwenza izigqibo zobungakanani zibaluleke kakhulu.

Izinto ezibalulekileyo ekufuneka uziqwalasele xa ufuna ubungakanani beValve yeSango leKnife kwizicelo zaselwandle

1. Tshatisa Ubungakanani beValve kunye nobubanzi bePipeline—Kodwa Qinisekisa Iimfuneko Zokuhamba Kombhobho

Nangona iivalvu zesango lemela zihlala zikhethwa ukuze zihambelane nobubanzi obuqhelekileyo bombhobho, usetyenziso lwaselwandle ludla ngokubandakanya:Ukuhamba kodaka.Uxinzelelo oluphezulu lwesanti.Uxinzelelo oluguquguqukayo.Ukusebenza okukhawulezileyo

Ngenxa yezi zinto, ububanzi bangaphakathi obusebenzayo bombhobho kunye nevalvu kufuneka buthelekiswe. Imbobo yangaphakathi engalungelelananga kakuhle inokubangela ukuxinana, ukunqongophala kokuhamba kwamanzi, okanye ukuqokelelana kwezinto eziqinileyo.

Eyona ndlela ilungileyo yokwenza izinto:Khetha ivalvu enebhore ehambelana kakhulu ne-ID yombhobho ukuze ugcine ukuhamba kakuhle kwaye uphephe ukuvaleka.

2. Vavanya iiMfuno zeSatifikethi sokuHamba kunye neSatifikethi

Iinkqubo zaselwandle zahlukile kwiinkqubo zoshishino kuba zihlala zisebenza:Xa uxinzelelo luphantsi.Ngokutshintshatshintsha kwamazinga okuhamba kwamanzi.Inemidiya equlethe izinto eziqinileyo.

Iivalvu zesango lemela azilungele ukuqhoboshelwa. Ke ngoko, ukukhetha ubungakanani obuchanekileyo kuqinisekisa ukuba amanzi afunekayo ayadlulangaphandle kokufuna ukuvulwa kwevalvu engaphelelanga, nto leyo enokubangela ukuguguleka ngokukhawuleza.Ukuba isantya siphantsi kakhulu, intlenga ingazinza; ukuba iphezulu kakhulu, ukukhukuliseka kunokubakho. Ubungakanani obufanelekileyo bugcina isantya singaphakathi koluhlu olufanelekileyo.

3. Cinga ngeSilinganiselo soXinzelelo kunye nokuHlela koXinzelelo lweNkqubo

Iivalvu zesango lemela kwiindawo zaselwandle zihlala zifumaneka kwimigca enoxinzelelo oluphantsi

Khetha ivalvu enokuthi:

• ①Ihambelana nodidi loxinzelelo lwepayipi (PN10, PN16, njl.njl.)

• ②Inciphisa ukwehla koxinzelelo kwivalvu

• ③Igcina ivaliwe ngokuqinileyo xa uxinzelelo luphantsi, apho iivalvu ezininzi ziyasokola khona

Ivalvu enobukhulu obufanelekileyo ivumela umbhobho ukuba usebenze ngokuzinzileyo ngaphandle kokugqithisa iimpompo okanye ukunciphisa amandla okuhamba kwamanzi.

4. Hlalutya Iimpawu zeMidiya—Zinefuthe kubungakanani

Imidiya kwiinkqubo zaselwandle ingabandakanya:Amanzi aqinileyo anesanti okanye intlaka.Amanzi amdaka okanye amanzi amdaka.Amanzi okupholisa enjini aqulethe ukukhula kolwandle.I-slurry eyosiweyo

Umxholo ophezulu wezinto eziqinileyo ufuna:Ubungakanani obupheleleyo.Akukho nciphiso kwindlela yokuhamba.Ukukhetha ivalvu enomphetho wesango oqinileyo kunye nesihlalo esiqinisiweyo

Ukuba ukusetyenziswa kubandakanya izinto eziqinileyo eziphezulu, ukunyusa ubungakanani ngobungakanani obuqhelekileyo kunokucetyiswa kuphela xa kuxhaswa ngokufanelekileyo zizibalo zokuhamba kwamanzi.

5. Iakhawunti yeNdawo yoFakelo kunye nendlela yokuSebenza

Kwimikhumbi, indawo incinci. Amagumbi eenjini, iindawo zokugcina imithwalo, kunye nokufakelwa ngaphantsi kwedekhi kudla ngokuthintela:Ukuphakama kwevalvu.Ukubekwa kwe-Actuator.Ukufikeleleka kokulungiswa

Ngaphambi kokugqiba ubungakanani bevalvu:

• ①Qinisekisa ukuba ivili lesandla, isilinda yomoya, okanye i-actuator yombane ivuliwe na

• ②Jonga ukuba imibhobho ayilungelelananga na

• ③Cinga ngomgama oya kwii-bulkheads, iipompo, kunye neetanki

Ivalvu enobukhulu obufanelekileyo kufuneka ilingane ngokomzimba ngaphandle kokubeka emngciphekweni ukufikeleleka okanye ukhuseleko.

6. Cinga ngeeMfuno zoLuntu lokuHlela

Iivalvu zesango leemela zohlobo lolwandle kufuneka zihlangabezane nemigangatho evela kwimibutho efana nale:I-DNV.I-ABS.LR.BV

Le migangatho inefuthe:Uvavanyo loxinzelelo/lobushushu oluvunyiweyo.Ubuncinci bobukhulu bodonga.Ukukhetha izinto ezisetyenziselwa amanzi olwandle (umz., i-SS316, intsimbi engatyiwayo ephindwe kabini, ukhetho lwebronze)

Ubungakanani obufanelekileyo buquka ukukhetha ivalvu eqinisekisiweyo yeemeko zokusebenza kwenqanawa.

7. Jonga ukuhambelana koQhagamshelo ekupheleni

Imibhobho yolwandle ingasebenzisa:Iziphelo ezijijekileyo (eziqhelekileyo nezicetyiswayo).Uhlobo lwe-Lug (oluxhaphakileyo kwiinkqubo zoomatshini abasebhodini).Uhlobo lwe-wafer (yokufakelwa okuncinci)

Qinisekisa:Iipateni zeBolt zihambelana neeflanges ezikhoyo.Ukungabikho kokuphuma kwangaphakathi kunciphisa ubungakanani bembobo esebenzayo.Uhlobo lwe-gasket lufanelana neendaba

Ubungakanani obuchanekileyo bufuna ukuhambelana kuzo zonke iindawo zonxibelelwano.

Kutheni Kubalulekile Ukulinganisa Izinto Kwizicelo Zaselwandle

Ivalvu yesango lemela engalingani kakuhle ingakhokelela koku:

• ①Uthintelo lokuhamba kwamanzi

• ②Ukwanda kokwakheka kwesanti

• ③Ukunxitywa kwevalvu kwangethuba

• ④Ukungcangcazela nengxolo

• ⑤Ukusetyenziswa kwamandla okupompo okuphezulu

• ⑥Iingozi zokhuseleko kwiinkqubo ze-ballast okanye zokukhupha amanzi

Ivalvu enobukhulu obufanelekileyo inika:

• ①Ulawulo lokuhamba komoya oluzinzileyo

• ②Ukuvalwa okuthembekileyo nokuba kukwimidiya engcolileyo

• ③Ixabiso lokulungisa elincitshisiweyo

• ④Ixesha elide lenkonzo

• ⑤Ukuthobela imigangatho yolwandle

Kubunjineli bezolwandle—apho ukuthembeka kuthetha ukhuseleko—ubungakanani obuchanekileyo abunakuxoxiswana.