Monga mphamvu yapamwamba, yothandiza, komanso yosavuta kugwiritsa ntchito mphamvu zoyera komanso zopangira mankhwala, gasi wachilengedwe ali ndi kuthekera kwakukulu kogwiritsa ntchito. Pakati pawo, gasi wachilengedwe (LNG), yemwe ali ndi malonda apamwamba, wayambanso kukopa chidwi ngati chowonjezera ku magwero a gasi.
Popeza mapaipi a LNG ndi mapaipi oyendera mpweya otsika kutentha, LNG yonyamulidwa ndi mapaipi nthawi zambiri imakhala ndi madzi otsika kutentha. Kutentha kwakunja kukalowa, kumasanduka nthunzi mosavuta, zomwe zimapangitsa kuti madzi oyenda mu gawo limodzi asinthe kukhala madzi oyenda mu magawo awiri a gasi, kapena ngakhale kutseka kwa gasi, zomwe zimapangitsa kuti kuthamanga kwa mpweya kuchuluke komanso kuchepa kwa kuchuluka kwa madzi m'magawo am'deralo, zomwe zimakhudza kwambiri mayendedwe abwinobwino a LNG. Chifukwa chake, kusuntha kwa mpweya wa LNG kuyenera kulamulidwa mosamala. Komabe, kusuntha kwa mpweya wa LNG kumatha kuletsa kulowerera kwa kutentha kwakunja ndi kusuntha kwa mpweya wa LNG, ndipo kugwira ntchito kwake kumadalira kwambiri mtundu wa kusuntha kwa mpweya wa payipi ya LNG. Chifukwa chake, mapaipi a LNG ayenera kugwiritsa ntchito njira zotetezera kutentha , ndipo khalidwe lawo silidzangokhudza kuyendetsa bwino kwa LNG, komanso lidzakhala ndi zotsatira zofunika pakugwira ntchito bwino kwa dongosolo lonse.
Mitundu ya kusungunula mapaipi a LNG
Kusungunula vacuum: Mfundo yake ndi kupanga chotsekeracho kukhala chotchinga chotchinga, ndipo malo amkati amasamutsidwa kupita pamlingo wina wa vacuum kuti achepetse kutentha. M'nyumba ya LNG yapakhomo, imakhala ndi nthawi yayitali yogwiritsira ntchito, mphamvu zodziwikiratu zamafuta otentha komanso kutaya mphamvu pang'ono. Komabe, chifukwa cha mtengo wapamwamba komanso nthawi yayitali yopanga, imagwiritsidwa ntchito kwambiri pama projekiti akuluakulu ndipo sangagwiritsidwe ntchito pamlingo waukulu.
Kutsekera kwa stacking: Kutsekereza kwa stacking ndi njira yachikhalidwe yotchinjiriza, ndiye kuti, zida zotsekera porous zimayikidwa kunja kwa chitoliro, ndipo kutchinjiriza kumatheka chifukwa ma cell amadzazidwa ndi mpweya wabwinobwino (kapena mpweya wina). Mphamvu ya kutchinjiriza kwamafuta ndi yotsika pang'ono kuposa ya vacuum insulation, koma imakhala ndi mawonekedwe osavuta, mtengo wotsika, komanso magwiridwe antchito ndi kukonza bwino. Pakadali pano, mapaipi apanyumba a LNG amagwiritsa ntchito njira iyi pakutchinjiriza mapaipi.
Pamsika wapano, zida zomwe zakhala zikugwiritsidwa ntchito nthawi zambiri zimagwiritsa ntchito magalasi a polyurethane ndi thovu malinga ndi kutentha kwa LNG. Poyerekeza ndi zida zachikhalidwe zotchinjiriza zotentha monga polyurethane ndi galasi la thovu, thovu la melamine lili ndi zabwino zambiri. Melamine thovu ali osiyanasiyana kukana nyengo (opanda madigiri 196 Celsius mpaka 200 digiri Celsius), amakhala wokhazikika thupi ndi mankhwala kapangidwe pansi pa mikhalidwe kutentha kwambiri ndi otsika, ndipo amapereka kwambiri matenthedwe madutsidwe (matenthedwe madutsidwe coefficient, 0.032 W/ (m*K))) ndi phokoso mayamwidwe ntchito (0.95NRC), kupanga izo ndi chitetezo champhamvu chitoliro LNG.
Popanga uinjiniya wa malo opangira mbewu za LNG, momwe polojekitiyi ikuyendera iyenera kuwunikidwa mwachindunji, ndikusankha zida zoyenera zamafuta ndi zoziziritsa kuzizira ziyenera kusankhidwa ndikugwiritsidwa ntchito. Zowoneka bwino zake ndi:
- Kutentha kocheperako kotetezeka kogwiritsa ntchito zida zoziziritsa kuzizira kuyenera kukhala kocheperako kuposa kutentha kwa sing'anga panthawi yogwira ntchito bwino;
- Ntchito yoteteza moto ya zida zoziziritsa kuzizira ziyenera kukwaniritsa zofunikira zapadziko lonse lapansi;
- Kuyika patsogolo kugwiritsa ntchito zida zoziziritsa kuzizira zokhala ndi kukana kwamphamvu kwa mpweya wamadzi kuti zitsimikizire kukhazikika kwanthawi yayitali kwazinthu;
- Zida zoziziritsa kuzizira ziyenera kukhala ndi ntchito yabwino yodulira pamalopo kapena kudula, kumanga kosavuta, komanso kuvutikira kwa unsembe pamalowo;
- Ikani patsogolo zinthu kapena zinthu zomwe zili ndi phindu lalikulu pazachuma;
- Chepetsani kuchuluka kwa ntchito yokonza tsiku ndi tsiku zoziziritsa zikayamba kupangidwa ndikuwongolera kugwiritsanso ntchito zida.
Kutengera ndi zofunikira zomwe zili pamwambapa, thovu la melamine lingagwiritsidwe ntchito ngati chotetezera kutentha ndi zinthu zosungira kuzizira kwa mapaipi a LNG, ndipo thovu la melamine limagwira ntchito yofunika kwambiri pakuteteza kutentha ndi kusunga kuzizira kwa mapaipi a LNG. Thovu la Melamine ndi pulasitiki yosinthasintha ya elastomer yokhala ndi kapangidwe ka netiweki ka magawo atatu. Imasungabe kapangidwe kathunthu ka thupi ndi mankhwala pa madigiri Celsius 196, kotero imakhalabe ndi kutentha kwabwino kwambiri kutentha pa kutentha kochepa ndipo imaletsa kugwedezeka kwa malo amkati ndi akunja. Kutulutsa ndi kutentha kwa radiation, kukana bwino moto (B1, UL94 V0 ndi HL-1) ndi zinthu zotetezera kutentha (sizipanga chilichonse chosasunthika komanso chotsutsana ndi kutentha), kukana asidi ndi alkali, kukana dzimbiri, kukana ukalamba, kulemera kopepuka komanso kusinthasintha kochepa kwa kutentha, ndi zina zotero, komanso chifukwa thovu la melamine resin ndi lolimba koma lopanda ulusi, lilibe fumbi, lopanda halogenated komanso lopanda ma hydrocarbon, loletsa moto komanso/kapena lopanda zitsulo zoopsa, makamaka loyenera malo omwe ali ndi zofunikira kwambiri zachilengedwe, malo osungira ozizira (fakitale yopangira mankhwala, fakitale yosungira zipatso ndi ndiwo zamasamba, fakitale yopangira chakudya, fakitale yopangira nyama ndi fakitale ya zakumwa zoziziritsa kukhosi) kutchinjiriza kozizira (kutchinjiriza kutentha ndi mawu), kutchinjiriza kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira kozizira koziziritsira/kozizira kozizira kozizira kozizira koziziritsira (kutchinjiriza kutentha ndi mawu), LNG liquefied storage tank insulation yozizira (kutchinjiriza kutentha ndi mawu), LNG liquefied ship transport vehicle kapena Ship cold and thermal insulation (kutchinjiriza kutentha ndi mawu), LNG liquefied ship transport vehicle kapena Ship cold and thermal insulation (kutchinjiriza kutentha ndi mawu).
Kuti mudziwe zambiri zokhudza SINOYQX Melamine Foam, chonde titumizireni uthenga pa [email protected] kapena titumizireni uthenga pa: +86-28-8411-1861.
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