Ivalve yedwaUkukhetha kufuneka kuqala kulandele imigaqo-nkqubo emine yokhuseleko, ukuthembeka, kunye noqoqosho, ilandelwa ziiparamitha ezintandathu (okt iiparamitha zeparamitha, iiparamitha ze-piholi, i-parameter yombane, isicelo esikhethekileyo).

Isiseko sokukhetha

1. Khetha i-valve ye-solenoid ngokweeparamitha zeparameter: Ukuchazwa kwedayimitha (okt DN), indlela yendlela

1) Chonga ubungakanani bedayitha (DN) ngokobungakanani bobukhulu obungaphakathi bombhobho okanye iimfuno zokuhamba kwindawo;

2) Imowudi ye-Intanethi, ngokubanzi> I-DN50 kufuneka inyule isinxibelelanisi seFlash, ≤ DN50 sinokukhethwa ngokukhululekileyo ngokweemfuno zomsebenzisi.

2. Khetha iivalve yedwaNgokutsho kweparamitha ye-fluid: Iqela, iqela lobushushu

I-1) i-fluids ebonakalayo: I-corrosion-cornoid enganyangekiyo kunye nazo zonke iintsimbi ezingenasigaba ziya kusetyenziswa; i-ofisi ye-odra ecocekileyo: Ixabiso le-vaid le-vaid yentsimbi yentsimbi kufuneka isetyenziswe;

2) Iqondo lobushushu ephezulu: Khetha Aivalve yedwayenziwe ngezinto zobushushu obunganyangekiyo zeqondo lobushushu kunye nezinto zokutywina, kwaye ukhethe isakhiwo sohlobo lwePiston;

I-3) I-Fluid State: Inkulu njengegesi, ulwelo okanye ilizwe elixubeneyo, ngakumbi xa ububanzi bungaphezulu kune-DN25, kufuneka ihlulwe;

I-4) I-Floid Viscosity: Ngokwesiqhelo inokuthi ikhethwe ngokungaphantsi kwe-50cst. Ukuba idlula elixabiso, i-viscofity ye-viscoid ephezulu kufuneka isetyenziswe.

3. Ukukhetha ivalve ye-boleloid ngokweeparamitha zoxinzelelo: Iindidi zesakhiwo

1) Uxinzelelo olufanelekileyo: Le parameter inentsingiselo efanayo nakwezinye iiValvatu Geals, kwaye zimiselwa ngokoxinzelelo oluthile lombhobho;

2) Uxinzelelo olusebenzayo: Ukuba uxinzelelo lokusebenza luphantsi, umgaqo-nkqubo obambeleyo okanye wenyathelo ngenyathelo ngenyathelo ngenyathelo ngokulandelelana kufuneka isetyenziswe; Xa ubume boxinzelelo obuncinci bokusebenza ngaphezulu kwe-0.04MPA, ukubamba ngokuthe ngqo, inyathelo ngenyathelo ngenyathelo ngenyathelo lokusebenza kunye nokusebenza kwe-Pilot kunokukhethwa.

4. Ukhetho lombane: Kulula ukukhetha ukukhetha i-AC220v kunye ne-DC24 yokuqhutywa kwe-voltage kangangoko kunokwenzeka.

5. Khetha ngokobude bexesha lokuqhubeka kwexesha: Ngokwesiqhelo ivaliwe, ihlala ivulekile, okanye iyakhula

1) xaivalve yedwakufuneka ivulwe ixesha elide, kwaye ixesha lide kunexesha lokuvala, uhlobo oluvulekileyo kufuneka lukhethwe;

2) Ukuba ixesha lokuvula lifutshane okanye ixesha lokuvula kunye nokuvala alikho ixesha elide, khetha uhlobo oluqhelekileyo oluvaliweyo;

3) Nangona kunjalo, kwezinye iimeko zomsebenzi ezisetyenziselwa ukhuseleko loKhuseleko, njengeliso kunye ne-Kiln Flame, uhlobo oluqhelekileyo alunakukhethwa, kwaye uhlobo lwexesha elide lohlobo kufuneka lukhethwe.

6. Khetha imisebenzi encedisayo ngokweemfuno zokusingqongileyo: Ubungqina-bungqina, ukubuya, i-round, inkunzi yenkungu, ishawari yamanzi, ishawari.

Umgaqo wokukhetha umsebenzi

ukhuseleko:

I-1. I-Comrosing Peedium: I-King Dostloid ye-Ocenoid kwaye yonke intsimbi engenasimo isetyenzisiwe; Ukufumana uhlobo oluqinileyo lwe-corrossion ophakathi, ukuhlukaniswa kwe-diaphragm kufuneka kusetyenziswe. Ukungathathi cala, kuyacetyiswa ukuba usebenzise ivalve ye-socenod enobhedu njenge-valve ye-valve, kungenjalo, i-chips ye-chips ihlala iwela kwi-valve, ngakumbi amathuba apho inyathelo alikho rhoqo. I-Ammonia iHalvers ayinakwenziwa ngobhedu.

2. Imeko yokuqhushumba: Iimveliso ezinamabanga ahambelana nokuqhumola kufuneka zikhethwe, kwaye zange amanzi kunye neentlobo zobungqina bothuli kufuneka zikhethwe kufakwe ngaphandle okanye kwizihlandlo ezinothuli.

3. Uxinzelelo oluthile lweivalve yedwakufuneka idlule kubuninzi boxinzelelo lomsebenzi.

Isicelo:

1. Iimpawu eziphakathi

1) Khetha iintlobo ezahlukeneyo zeevalves zoocenod zerhasi, ulwelo okanye ilizwe elixubeneyo;

2) Iimveliso ezineenkcukacha ezahlukeneyo zobushushu obuphakathi, kungenjalo i-coil iza kutshiswa, iinxalenye zokutywina ziya kuba zilupheleyo, kwaye ubomi benkonzo buya kuchaphazeleka kakhulu;

I-3) Videighty, ihlala ingezantsi kwe-50cst. Ukuba idlula eli xabiso, xa ububanzi bungaphezulu kwe-15mm, sebenzisa ivalve yemisebenzi emininzi; Xa i-seameter ingaphantsi kwe-15mm, sebenzisa i-viscofity ye-viscodity ye-viscoid.

4) Xa ukucoceka kwephakathi akuphakathi, ivalve yokucoca ifihlakeleyo kufuneka ifakwe phambi kwevalve ye-solenoid. Xa uxinzelelo lusezantsi, i-diaphragm ye-seaphragm youdve isetyenziswe;

I-5) Ukuba i-Pepeium ijikeleze isikhokelo kwaye ayivumeli ukuhamba okuguqukayo, kufuneka isebenzise ukujikeleza kweendlela ezimbini;

I-6) Ubushushu obuphakathi kufuneka kukhethwe ngaphakathi kuluhlu oluvumelekileyo lwevalve enesidanga.

I-2. Iiparamitha zepayipi

1) Khetha iPort Port kunye nemodeli ngokweeMfuno eziPhakamileyo eziPhambili kunye nendlela yoqhagamshelo lwePipeline;

2) Khetha ububanzi bokwenyani ngokwendlela yokuhamba kunye ne-KV yevalve, okanye efanayo nenqanaba elingaphakathi lombhobho;

3) Uxinzelelo lokuSebenza: Uhlobo lwe-Pireher Quret lunokusetyenziswa xa ubume boxinzelelo obuncinci bokusebenza ngaphezulu kwe-0.04MPA; Uhlobo lokusebenza ngqo okanye inyathelo lenyathelo ngenyathelo ngqo

I-3. Iimeko zendalo

1) Owona shifu ubushushu bendalo esingqongileyo kufuneka kukhethwe ngaphakathi kuluhlu oluvumelekileyo;

2) Xa umswakama osisihlobo esingqongileyo ukuphakama kwaye kukho amathontsi amanzi kunye nemvula, njl njl.

I-3) Rhoqo ii-piberations, amaqhuqhuva kunye nokothuka kwindawo engqongileyo, kwaye iintlobo ezikhethekileyo kufuneka zikhethwe, ezinje ngee vallodid zaselwandle;

I-4) yokusetyenziswa kwiindawo ezinobuchule okanye eziqhumayo, uhlobo olunganyangekiyo lufanele ukhethwe kuqala ngokweemfuno zoKhuseleko;

5) Ukuba isithuba esingqongileyo silinganiselwe, ivalve yemisebenzi emininzi ye-boodid kufuneka ikhethwe, kuba isusa imfuneko ye-PASPASS kunye neevalve ezintathu ze-Intanethi kwaye zilungele ukugcinwa kwe-intanethi.

4. Iimeko zamandla

1) Ngokomgaqo woncedo lwamandla, khetha I-AC kunye ne-DC Ornoid ngokulandelelana. Ngokubanzi, i-AC i-AC i-AC ilula ukuyisebenzisa;

2) I-AC220V.DC24V kufuneka ikhethwa ukuba kuqinisekiswe ukucaciswa kwevoti;

3) Isiphumlo sombane sombane sidla ngokuba yi-PSTAT +% 10% .- I-15% ye-AC, kunye ne-% 10 ye-DC ivunyelwe. Ukuba inganyamezeli, kufuneka ithathwe amanyathelo okumisela imilinganiselo;

I-4) Ukusetyenziswa kwangoku kunye nokusetyenziswa kwamandla kufuneka kukhethwe ngokomthamo woncedo lwamandla. Kuya kufuneka kuqatshelwe ukuba ixabiso le-VA liphezulu ngexesha lokuqalisa, kwaye ivalinga ye-pilorect ye-phened yoocenod kufuneka ikhethwa xa umthamo akonelanga.

5. Ukuchaneka kolawulo

I-1) Iivalves ze-ocloid eziqhelekileyo zinezikhundla ezimbini: Ukucima. Iivalves ezininzi ze-sooned kufuneka zikhethwe xa ukuchaneka kolawulo kuphezulu kwaye iiparameter ziyafuneka ukuba zizinzile;

2) Ixesha lesenzo: libhekisa kwixesha ukusuka xa uphawu lombane luvuliwe okanye lucinyiwe xa isenzo se-valve sigqityiwe;

I-3) Ukuvuza: Ixabiso lokuvuza elinikezelwe kwisampulu ilibakala eliqhelekileyo loqoqosho.

Ukuthembeka:

1. Ubomi bokusebenza, le nto ayibandakanywanga kwinto yovavanyo lwefektri, kodwa yeyokufunda. Ukuze kuqinisekiswe umgangatho, iimveliso zegama le-frig ukusuka kubavelisi abaqhelekileyo kufuneka zikhethwe.

2. Inkqubo yokusebenza: Zintathu iintlobo zenkqubo yomsebenzi yexesha elide, inkqubo ephindaphindiweyo yexesha elifutshane kunye nenkqubo yexesha elifutshane. Kwimeko apho iveli evulwa ixesha elide kwaye ivaliwe kuphela ixesha elifutshane, i-valve eqhelekileyo ivuliwe kufuneka isetyenziswe.

3. Ukusebenza rhoqo: Xa i-frequency esebenzayo kufuneka iphakame, isakhiwo kufanelekile ukuba ibe yivalve ye-soonediad ye-ocnoid, kwaye umbane kufuneka ngokukhethileyo kwi-AC.

I-4. Ukunyaniseka kwenyathelo

Ngokuthetha ngokungqongqo, olu vavanyo alwe lubandakanywe ngokusemthethweni kumgangatho wobungcali lwevalve yaseChina. Ukuze kuqinisekiswe umgangatho, iimveliso ezidumileyo zohlobo oluqhelekileyo kufuneka zikhethwe. Ngamanye amaxesha, inani lezenzo alikho abaninzi, kodwa iimfuno zokuthenjwa ziphezulu kakhulu, njengokhuseleko lomlilo, ukukhuselwa okungxamisekileyo, njl. Njl. Kubaluleke kakhulu ukuthatha i-inshurensi ezimbini ezilandelelanayo.

Uqoqosho:

Sesikali esikhethiweyo, kodwa kufuneka sibe noqoqosho kwisiseko sokhuseleko, isicelo kunye nokuthembeka.

Uqoqosho ayisiyoxabiso kuphela lemveliso, kodwa kunye nomsebenzi wayo kunye nomgangatho, kunye neendleko zokufakwa, ulondolozo kunye nezinye izinto.

Okubaluleke ngakumbi, iindleko zeivalve yedwaKuyo yonke inkqubo yokulawula ngokuzenzekelayo incinci kakhulu kwinkqubo yonke yokulawula ezenzekelayo nasekumgca wemveliso. Ukuba kubawa ngenxa yokukhetha ixabiso eliphantsi kunye okungalunganga, iqela lomonakalo liya kuba likhulu.