Uwufaka njani umbhobho wegesi we-HDPE ngokuchanekileyo?

Polyethylene (HDPE) umbhobho wegesi iye yaba yinto ekhethwayo kwiinkqubo zokuhanjiswa kwegesi ngenxa yokusebenza kwayo okugqwesileyo kunye noqoqosho. Njengomvelisi wemibhobho yegesi ye-PE ekhokelayo eTshayina, asiboneleli kuphela ngeemveliso ezikumgangatho ophezulu ezihlangabezana nemigangatho yamazwe ngamazwe, kodwa ikwabonelela nge-OEM (ukwenziwa kwezixhobo zokuqala) kunye ne-ODM (ukwenziwa koyilo lokuqala) iinkonzo kubathengi bethu ukuhlangabezana neemfuno ezahlukeneyo zemarike yehlabathi.

Ekuqaleni, iingenelo eziphambili HDPE Gas Pipe:

1. Ukumelana nokubola kunye nobomi obude

   Izinto ze-PE zinokuchasana kwendalo kwi-corrosion yekhemikhali kunye ne-electrochemical corrosion, ilungele ngakumbi ukumanzi, indawo yomhlaba eneasidi-alkali. Xa kuthelekiswa nemibhobho yentsimbi yemveli, ubomi bayo benkonzo inokufikelela ngaphezu 50 iminyaka, kunye neendleko zokugcina zingancitshiswa ngaphezulu 60%.

2. Ukuguquguquka okuphezulu kunye nokuchasana kwempembelelo

Ubude bexesha lokuqhawuka kombhobho wePE buyadlula 350%, enokuthi ixhathise ngokufanelekileyo i-deformation ebangelwa ukuhlaliswa kwesiseko okanye inyikima. Ukusebenza kusazinzile phantsi kobushushu obugqithisileyo obuyi -60℃ ukuya kwi-40℃.

3. Ukwakhiwa okulula kunye nokufanelekileyo

Ukuxinana kuphela 1/8 wombhobho wentsimbi, kunye nokusebenza kakuhle kothutho kunye nofakelo kuphuculwe kakhulu. Ukusetyenziswa kwe-melt eshushu okanye iteknoloji yokudibanisa umbane, akukho mfuneko yezixhobo ze-welding eziyinkimbinkimbi, isantya sokwakha sinyuke ngo 30%-50%.

4. Ukhuseleko lokusingqongileyo kunye nokhuseleko

Akukho zinto ziyingozi zikhutshwa kwinkqubo yokuvelisa, kwaye 100% inokuphinda isetyenziswe. Udonga lwangaphakathi lombhobho lugudile, ukuxhathisa ukuhamba kwegesi kuncinci, kwaye umngcipheko wokuvuza uphantsi kakhulu, edibana ne-EU EN 1555 kunye neTshayina GB 15558 imigangatho.

Isibini, Inkqubo yokufakela umbhobho wegesi we-HDPE

1. Ukulungiswa phambi kofakelo

Isicwangciso soyilo: Yila isalathiso sombhobho ngokokuhamba kwerhasi, inqanaba loxinzelelo (njenge SDR11/SDR17) kunye neemeko zomhlaba, phepha imiqobo engaphantsi komhlaba, kwaye uqinisekise ukuba ubunzulu obungcwatywe ≥ 0.8m (indlela) okanye ≥ 0.6m (indlela esecaleni).

Ukwamkelwa kwezinto: khangela imbonakalo yombhobho (akukho mikrwelo, amaqamza), isatifikethi esicacileyo (kuquka isalathisi sokunyibilika kwezinto ezikrwada, ingxelo yovavanyo lwexesha lokungeniswa kwe-oxidation), kunye nesampulu yovavanyo lwamandla e-hydrostatic (80℃/165h).

Uqeqesho lwabasebenzi: Abasebenzi bokwakha kufuneka babambe isiqinisekiso sokusebenza kwemibhobho ye-PE, Inkosi yokulawula ubushushu bomatshini wokunyibilika (220℃±10℃) kunye neeparamitha zoxinzelelo (uxinzelelo lokufunxa ubushushu 0.15MPa, uxinzelelo lokupholisa 0.02MPa).

2. Ukwembiwa komsele kunye nonyango lwesiseko

Xa kusetyenziswa ukumba oomatshini, 20cm manual yokucoca umaleko igcinwe ezantsi umsele ukuqinisekisa ukuba isiseko igudileyo.

Beka umqamelo wesanti oyi-10cm ematyeni okanye kumhlaba oqinileyo ukuthintela ukukrweleka kwemibhobho.

3. Ukubekwa kwemibhobho kunye noqhagamshelo

A.Hot melt butt (DN≥90mm) :

  1. Ukugawula isiphelo sobuso ukuya kumcaba, ubungakanani bokungalungelelanisi kakuhle < 10% ubukhulu bodonga.

  2. Ubushushu bepleyiti yokufudumeza bubekwe kwi-210℃-230℃, kwaye ixesha lokufudumala libalwa ngokobunzima bodonga × imizuzwana ye-10 / mm.

  3. Gcina uxinzelelo oluqhubekayo kwinqanaba le-endothermic, tshintsha ixesha ≤5 imizuzwana, ixesha lokupholisa ≥ ubukhulu bodonga × 1min/mm.

B.Uqhagamshelwano lokudityaniswa koMbane (DN≤315mm) :

  1. Khupha umaleko we-oxide kwaye uphawule ubunzulu bokufaka ngokucacileyo.

  2. Seta i-voltage (ngokuqhelekileyo i-36V-48V) ngokwexabiso lokumelana nomkhono wefuse, kwaye ixesha lokuwelda lilungelelaniswa ngokuzenzekelayo.

Ukuhlolwa komgangatho: ukuphakama kwe-flanging kufuneka kufikelele 1/3 yobunzima bodonga lombhobho, kunye nomngxuma wokujonga ukunyibilika kombane kufuneka utyhalelwe ngaphandle.

4. Uvavanyo loxinzelelo kunye nokuzaliswa ngasemva

Uvavanyo lwamandla (1.5 amaxesha uxinzelelo lokusebenza, 4h ulawulo loxinzelelo) kunye novavanyo lokuqina (1.15 amaxesha uxinzelelo lokusebenza, 24ukwehla koxinzelelo ≤1%) ziqhutywa ngokwamacandelo.

Ukuzaliswa ngasemva usebenzisa indlela yokudibanisa i-lamination, umaleko ngamnye ubukhulu ≤20cm, i-backfill yokuqala kusetyenziswa isanti ecolekileyo ukukhusela umbhobho.

Ukufakwa kwenzululwazi yePolyethylene (HDPE) Umbhobho werhasi likhonkco eliphambili lokuqinisekisa ukhuseleko lwerhasi, kunye nokukhetha umenzi wemibhobho yaseTshayina kunye nokufakwa kwetekhnoloji ekhokelayo kunokufumana ngcono izibonelelo ezintathu zeendleko, umgangatho kunye nenkonzo.

Umthengisi

ILuoyang Datang Energy Tech Co., Ltd. ngumvelisi oqeqeshiweyo kunye nomthengisi wemibhobho kunye nezixhobo. Sinikezela ngeepayipi zePPR, Imibhobho yePVC, Imibhobho ye-PE, kunye nemibhobho yokufudumeza umgangatho kunye nokufakwa kuzo zonke iintlobo zemibhobho, ngomgangatho ophezulu kunye namaxabiso akhuphisanayo. Ukuba unayo nayiphi na imibuzo malunga nemibhobho kunye nokufakelwa, nceda ungathandabuzi ukuqhagamshelana nathi. Ungacofa kwimveliso ukuze uqhagamshelane nathi.