Ukwehliswa kwe-foam. Ukukhiqizwa kwamapayipi kwi-polyurethane insulation

Ukugxilwa kwe-polyurethane foam manje kubhekwa njengendlela ephumelela kakhulu, ngoba le nto ine-coefficient ephansi kunazo zonke zokuqhuba kahle, futhi inezindawo eziningi zokuvimbela ukungena kwamanzi. Isici sokugcina sitholakala ekubeni khona kwamaphesenti angu-99 ama-pores avaliwe ekubunjweni kwento. Ukufakwa kwe-FPU akuhambisani nemiphumela yamakhemikhali, imidiya ye-alkaline nama-acidic compounds. Kungenxa yekilasi lokuvutha kwe-G2 futhi inokuphikiswa okuphezulu kumathonya angaphandle.

Incazelo jikelele

I-polyurethane i-polyurethane enezintambo ezinamandla inezici ezinhle kakhulu zokushisa ukushisa okungenakubalwa okungqimba. Ngenxa yalezi zakhiwo, kufanelekile ukuxazulula izinkinga zomsebenzi wokushisa ukushisa, okusho ngezizathu zezobuchwepheshe nezomsebenzi kubonisa ukugcinwa kwamandla okungcono. Ukungena kwamanzi kwento akudluli u-1.2-2.1% wevolumu yenani. Ukufakelwa kunzima ukushisa ngisho nokuvezwa ngokuqondile komlilo.

Ukugxilwa kwe-PPU kunesisindo esingenakunqunywa, esingaba ngu-60 kilogram ngamamitha ayi-cubic. Ibonakala ngamandla amakhulu nokuvikelwa kokushisa kwezakhi zensimbi. Uma ufaka, asikho isidingo sokusebenzisa izinsimbi ezingeziwe, enkundleni, amabhuloho abandayo awakhiwe . Ukuhlukanisa nalesi sakhiwo kungadala noma yikuphi ukucushwa nosayizi.

Ukuzinza

Ukugxilwa kwe-polyurethane foam kubonakala ngokuqina kwayo, okubangelwa ukuthi izinto aziboli futhi azivunyelwe ngaphansi kwethonya lokuhluka kwenkathi kumswakama nokushisa. Asikwazi ukwehluleka ukukhuluma ngobungane obuhle bemvelo, ngakho-ke, izindinganiso zokuhlanzeka, ukwaziswa kungasetshenziswa kwezobuchwepheshe obubandayo, okuhloselwe ukugcinwa kwemikhiqizo yokudla.

Ukugxilwa kwenzelwa ubuchwepheshe bokuthulula isikhunta se-polyurethane sibe isikhunta, lapho kungenzeka khona ukwakha amabhlogo okuthiwa ama-shells. Zisetshenziselwa ukulungiswa kwamapayipi, ukukhiqizwa kwe-sandwich panels kanye nama-slabs. I-Polyurethane i-foam ingafakwa kunoma yiziphi izinto ezifana nensimbi, izinkuni, izitini, ingilazi, nokukhonkolo. Kulesi simo, ukumiswa kobuso akunandaba.

Ukukhiqizwa kwamapayipi nge-polyurethane yokuqapha

Ukwakhiwa kwe-PPU, ukwakhiwa kwayo okuzochazwa ngezansi, isetshenziselwa ukwakha amapayipi adinga ukuvikelwa okukhethekile. Umphumela umkhiqizo oshintsha umshini, owenziwe ngokuhambisana ne-GOST 30732-2006. Njengengxenye yokwehliswa okushisayo kulokhu, i-polyurethane foam isetshenziswa, kuyilapho ukuvikelwa emanzini kuqinisekiswa ngokuba khona koqweqwe lwe-polyethylene. Amapayipi anjalo ahloselwe ukuhlelwa kwamafutha okushisa, ukufakwa okwenziwa ngaphansi komhlaba. Ekukhiqizeni izinhlelo ezinjengezintambo ezintathu, insimbi yekhwalithi esezingeni eliphezulu isetshenziselwa ukuhamba kwe-coolant.

Imikhiqizo ivikelwe nge-polyurethane foam layer, eliqeda ngokuphelele ukushisa komshini. Insimbi kanye ne-polyurethane foam ivikelwe emanzini angaphansi komhlaba, okuqinisekisiwe ukuba khona kwekhava elikhethekile, elenziwe nge-polyethylene. Amapayipi ensimbi ekufakweni kwe-PPU angaba yimihlobo emibili, okuyilowo nalowo osebenzisa ukusetshenziswa kobukhulu bawo obunqamulelayo bokungqimba. Uhlobo lokuqala lusetshenziselwa ukufakwa ezindaweni eziphakathi, izimo zazo zibhekene nesimo sezulu esiphezulu. Uhlobo lwesibili lwenzelwe ukuthi lusebenze ezimweni zokushisa okuphansi kakhulu, njengezindawo ezisenyakatho. I-PPU-insulation (igobolondo) inqubo yokukhiqizwa inikezwa uhlelo lwe-DCS, okuvumela ukutholakala ngesikhathi esifanele komonakalo ophumela ngesikhathi sokusebenza. Ikuvumela ukuthi ulawule umswakama wendwangu yokuqhafaza, ukubonisa uma izinga liphakanyiswa.

Amanani we-PRP

Ukwakhiwa kwe-PPU, inani elinikezwa ngezansi, kungaba yisisombululo esifanele kuphela uma kudingekile ukugxilisa amapayipi. Ngakho-ke, uma udinga uhlelo olungeziwe, bese ububanzi bombhobho wamamitha angu-507, ubukhulu bodonga ngamamitha angu-3.5 nobubanzi begobolondo wamamitha angu-125, intengo yokufaka umshini ngaphandle kwepayipi yensimbi kumitha yokusebenza iyakuba ngama-ruble angu-376. Ngokunyuka kwemingcele engenhla kuya kuma-89x3.5x160 millimeters, intengo ikhuphukela kuma-ruble angu-552. Ubukhulu obuhle kakhulu, obulingana no-630h8h800, kuthatha izindleko zamaruble angu-8600.

Amapayipi amahle emipayipi ku-PPU insulation

Uma unquma ukugxilisa amapayipi usebenzisa i-polyurethane foam, ungathembela ezicikisweni zezinto eziphezulu. Phakathi kwabo, umuntu angakwazi ukuhlukanisa i-coefficient engadingekile yokuziphatha okufudumele, okungu-0.027 W / m. Kumele kuqashelwe kanye namandla, kanye nokumelana nokubola. I-PPU izovikela ipayipi yensimbi kangcono kune-armobenobeton noma i-bitumen. Ngaphezulu kwensimbi, ngeke kudingeke ukuthi usebenzise ukugqoka okungahle kwenzeke, okuzohlinzeka ngokulondolozwa okushisa okumangalisayo kunokwakheka kwe-wool. Ngemuva kokufeza lo msebenzi, amapayipi azokwazi ukuhlala iminyaka engu-25 nangaphezulu. Lezi zikhathi eziningana kunesikhathi esabelwe amapayipi ngaphandle kokusebenza kahle. Uma kunesistimu ye-ODC, uzokwazi ukulawula ubuqotho bomkhiqizo ngesikhathi sokusebenza, ngaphandle kokusebenza kwemvu. Kufanelekile ukugqamisa izinzuzo zomnotho ezivezwa ukuthi ukusetshenziswa kwamapayipi nge-PPU ukushutheka kwehlisa imigomo yokufakwa kwezokushisa amanethiwekhi ngezikhathi ezintathu, kunciphisa izindleko zokugcinwa ngezikhathi ezingu-9, kanti ngomsebenzi wokulungisa, kuzoba eshibhile izikhathi ezingu-3 .

Isiphetho

Uma usebenzisa amapayipi angaphambi kokufakelwa ngendlela echazwe ngenhla, ungakwazi ukunciphisa kakhulu izindleko zokwakha nokusebenza okulandelayo. Uzothola ithuba lokunciphisa ukulahlekelwa kwamazinga okushisa, lapho usebenzisa amapayipi anjalo angama-2%. Imikhiqizo ekufakweni kwe-PPU ingasetshenziswa ngezindawo zokushisa ezihlaba umxhwele eziphakathi kwe -80 kuya ku-+130 degrees, ezifanele kakhulu izimo ezinzima kwezinye izindawo zaseRussia.