Ukuqonda izibonelelo ze-ASTM A139 i-spiral sping yentsimbi yoMbhobho weRhafu yeNdalo phantsi kweNdalo

Yazisa:

Xa kufikwa kuhambo lwegesi yegesi, ukubaluleka kwemibhobho engaphantsi komhlaba akunakuba ngaphezulu. Le mibhobho iqinisekisa ukuhanjiswa okukhuselekileyo nokulungileyo kwala mandla afanelekileyo kumakhaya, amashishini kunye nomzi mveliso. Ukuqinisekisa ukuba ubomi obude, ukuthembeka kunye nokuhluma kwale mibhobho, ukusetyenziswa kwezinto ezikumgangatho ophezulu kubalulekile. Phakathi kwezinto ezininzi ezikhoyo ezikhoyo,I-ASTM A139Imibhobho yentsimbi ye-Spills ivele iluhlobo olukhethekileyo. Kule bhlog, siya kungena kwiimpawu kunye nezibonelelo ezenziwayoI-ASTM A139Izinto ezikhethiweyo zokukhetha ngaphantsi komhlaba eziphantsi komhlaba.

Ipropathi yoomatshini

Ukwakhiwa kweekhemikhali

Uvavanyo lwe-hydrostatic

Ubude bombhobho buya kuvavanywa ngumenzi kwingcinezelo ye-hydrostatic eya kuthi ivelise udonga lombhobho woxinzelelo olungaphantsi kwe-60% yamandla egumbi elichaziweyo kubushushu begumbi. Ingcinezelo iya kugqitywa ngale quation ilandelayo:
P = 2st / d

Umahluko ovumelekileyo kwimilinganiselo kunye nobungakanani

Ubude bombhobho buya kuba bunzima ngokwahlukeneyo kwaye ubunzima bayo abuyi kudliwa ngaphezulu kwe-10% ngaphezulu okanye i-5.5% phantsi komzimba wayo, ukubalwa kusetyenziswa ubude bayo.
Ububanzi bangaphandle abuyi kwahluka ngaphezu kwe- ± 1% ukusuka kwibala elichaziweyo langaphandle.
Ubunzima bodonga nangayiphi na inqaku aliyi kuba ngaphezulu kwe-12,5% phantsi kobunzima obuchaziweyo.

Ubude

Ubude obungakhethwanga okanye i-16 ukuya kwi-25ft (4.88 ukuya kwi-7.62m)
Ubude obuPhindwe kabini: Ngaphezulu kwe-35ft ukuya kwi-35ft (7.62 ukuya kwi-10.67m)
Ubude be-iyunifomu: ukwahluka okwaneleyo ± 1in

Iphela

Imfumba yepayiwe iya kugcinwa ngobutyebi ecacileyo, kwaye iifayili eziphelweni ziya kususwa
Xa umbhobho wokuphela echazwe ukuba i-Bevel iphela, i-engile iya kuba ngama-30 ukuya kwi-35 degree

I-ASTM A139: UkukhethaPhantsi kombhobho wegesi yendaloImigca:

1. Amandla kunye nokuqina:

I-ASTM A139umbhobho wentsimbiyaziwa ngokuba ngamandla ayo agqwesileyo kunye nefuthe. Ezi mpawu zibalulekile kwimibhobho yegesi engaphantsi komhlaba kuba zihlala zichaphazeleka kwiimeko ezahlukeneyo zokusingqongileyo kunye neemeko zoxinzelelo eziphantsi komhlaba. Uyilo lweSpiral lwemibhobho yentsimbi iphucula ingqibelelo yayo yokwakhiwa, ivumela ukuba ikwazi ukumelana neengcinezelo zangaphandle kunye nokunciphisa umngcipheko wokuvuza okanye ukugcoba.

2. Ukunganyangeki kwe-Corrosion:

Imibhobho engaphantsi komhlaba ichaphazeleka kukungabinazilo ezibangelwe ngamanzi, iikhemikhali zomhlaba kunye nezinye izinto. I-ASTM A139 I-Pipel yentsimbi isondela esisombulula le ngxaki ngokusichasa ubukhulu becala. Oku ikakhulu kungenxa ye-winc-tories yayo etyebileyo, ebonelela ngesithintelo esikhuselayo kwizinto ezongalisayo, eqinisekisa ukuba i-longenving yombhobho kunye nokunciphisa isidingo sokulungiswa rhoqo okanye ukutshintshwa.

I-3. Ubuqhetseba kunye nokusebenza phaya

I-ASTM A139 I-Pipel Pipe yentsimbi inombhobho ogqwesileyo, ivumela udibaniso olugudileyo, olusebenzayo ngexesha lofakelo. Eli nqaku liyingenelo ikakhuluNgaphantsi kwemibhobho yegesi yendalo, njengoko iqinisekisa ukuthembeka kwenkqubo yendlela kwaye inciphise umngcipheko wokuvuza. Ukongeza, ukufezekisa imibhobho yentsimbi yentsimbi ivumela ukuba yenziwe ngokulula kubude obuhlukeneyo kunye needayimitha zokufezekisa iimfuno ezahlukeneyo zeprojekthi, ngalo lonke ukuncedisa ngenkcitho kunye nokwenziwa kweendleko.

4. Ukusebenza ngendleko:

Elinye ilungelo lokusebenzisa i-ASTM A139 umbhobho wentsimbi ye-Spiral of Ripeding yegesi yindleko yayo. Ukuqina komxholo, ukumelana nokunganyangeki kunye nokukhululeka kokufakwa kunciphisa ulondolozo lwexesha elide kunye neendleko zokutshintsha. Ukongeza, amandla ayo aphezulu-ububanzi bomgangatho unciphisa isidingo sezixhobo ezibanzi zenkxaso ngexesha lokufakwa, kubangele ukonga iindleko ngokubanzi.

5. Ukuqwalaselwa kwendalo:

I-ASTM A139 imibhobho yentsimbi yenziwa kusetyenziswa iinkqubo zobuntu yindalo kwaye zihambelana nemigangatho yokhuseleko. Iipropathi zayo ezingazithandiyo zinceda ukuthintela ukuvuza kwegesi, ekugqibeleni inciphise ifuthe lokusingqongileyo. Ukongeza, ukuphinda ubugcisa bentsimbi kwenza ukuba kube lula ukukhetha okusingqongileyo, ngakumbi ukugxininisa izibonelelo ezizinzileyo zokusebenzisa i-ASTM A139 i-Spiral Storal Pipenes zemibhobho yegesi engaphantsi komhlaba.

Ukuququmbela:

Ukukhetha izixhobo ezifanelekileyo zemibhobho yegesi engaphantsi komhlaba kubalulekile ekuqinisekiseni ukuthunyelwa okukhuselekileyo, okusebenzayo nangokuchanekileyo kwalo mthombo wamandla amandla axabisekileyo. I-ASTM A139 umbhobho wentsimbi ngolona khetho lubalaseleyo ngenxa yamandla alo, ukuqina, ukunganyangeki, ukungabi nazimvo, kunye neendleko zokusingqongileyo. Iipropathi zayo ezizodwa zenza ukuba kuthathe ukhetho lokuqala lweenjineli kunye nabaphathi beeprojekthi bafuna ukwakha imibhobho yegesi yendalo eya kuvavanywa uvavanyo lwexesha. Ngokutyalomali kwizinto ezisemgangathweni njenge-ASTM A139 umbhobho wentsimbi, sinokuqinisekisa ukuba izibonelelo zokuhambisa ezinzileyo nezikhuselekileyo zegesi kwizizukulwana ezizayo.