Kodi Ubwino ndi Kuipa kwa Polyurethane Insulated Pipe ndi Chiyani?

Mapaipi otsekemera a polyurethane ndi mipope yotsekera yomwe imagwiritsidwa ntchito kuchepetsa kutayika kwa kutentha kapena kutsika kwa kutentha m'mapaipi amafuta. Amadziwikanso kutipolyurethane insulated chitoliro, PU insulated chitoliro, polyurethane thovu insulated chitoliro, kapena-paipi yachitsulo yotsekeredwa, kutengera kagwiritsidwe ntchito ndi mawu achigawo. Potenthetsa, kuziziritsa, ndi kukwiriridwa maukonde othandizira, magwiridwe antchito ake samatsimikiziridwa ndi chithovu chokha. Chitoliro cha ntchito, mtundu wa thovu la polyurethane, chosungira chakunja cha HDPE, chomangira chomangira, kusindikiza pamodzi, kutentha kwa ntchito, ndi malo oikapo zonse zimakhudza kudalirika kwanthawi yayitali{{2}. Ubwino wawo waukulu ndi otsika matenthedwe madutsidwe, khola kutchinjiriza ntchito, ndi kuyenerera kwachindunji kukwiriridwa Kutentha kapena kuzirala maukonde. Zolepheretsa zawo zazikulu nthawi zambiri zimawonekera mozungulira kusindikizira kophatikizana m'munda, chiwopsezo cha kulowa kwa madzi, kutentha kwanthawi zonse, komanso zovuta kukonza pambuyo pa maliro.

M'magawo otenthetsera magetsi,EN 253 pre-paipi yotsekeredwamachitidwe ndi maumboni wamba waukadaulo. Muyezowu umafotokoza za fakitale-zomanga mapaipi a ma netiweki amadzi otentha okwiriridwa mwachindunji, omwe amakhala ngati chitoliro chachitsulo, chotsekereza thovu lolimba la polyurethane, ndi poyala yakunja ya polyethylene. Maumboni okhazikika a machitidwe amtundu wa EN 253 amawonetsanso ntchito yamadzi otentha yosalekeza mpaka 120 digiri komanso nthawi zina kutentha kwapamwamba mpaka madigiri 140, kutengera kapangidwe ka makina ndi kusindikiza kokhazikika.

A polyurethane insulation pipenthawi zambiri imakhala chitoliro-mu-chitoliro. Chitoliro chamkati chimanyamula sing'anga, polyurethane foam wosanjikiza imapereka kutsekemera kwamafuta, ndipo jekete lakunja limateteza kutchinjiriza ku dothi, chinyezi, kuwonongeka kwamayendedwe, komanso kukhudzana ndi makina.

Tsitsani:Polyurethane Insulation PipeTechnical Data & Application Guide

Pamakina otenthetsera-asanatsekeredwe m'chigawo, miyezo yogwirizana nayo ingaphatikizepo zotengera, mavavu, ndi ma field joints. EN 448 imakwirira fakitale-yopanga zotchingira zotchingira zotchingira monga ma bend, ma tee, zochepetsera, zolipirira, ndi nangula; TS EN 489 imakwirira zolumikizana zomwe zimapangidwa pakati pa -mapaipi otsekeredwa kale, zolumikizira, kapena mavavu mumanetiweki amadzi otentha.

1. Low Thermal Conductivity ndi Kuchepetsa Kuwotcha Kutentha

Ubwino waukulu wa mapaipi otchinjiriza a polyurethane ndi kutentha kwawo kochepa. Foam yolimba ya polyurethane imakhala yotsekeka-maselo, zomwe zimathandiza kuchepetsa kutentha kwa mapaipi onyamula madzi otentha komanso kuchepetsa kutentha kwa madzi ozizira. Ichi ndichifukwa chake chitoliro cha PU chithovu chotchinjiriza chimagwiritsidwa ntchito kwambiri pakuwotcha kwachigawo, maukonde amadzi ozizira, ndi njira zina zamapaipi otenthetsera.Pa mizere yamadzi ozizira, wosanjikiza womwewo umathandizanso kuchepetsa kutsika kwa kutentha ndi chiwopsezo cha condensation pamene kusindikiza kwa nthunzi kumayendetsedwa bwino.

Kutentha kwapadera kwamafuta kumadalira kapangidwe ka thovu, kachulukidwe, kutentha kwa mayeso, kukalamba, komanso kupanga. Zina za EN 253 pre-zosungidwa papaipi zopangira mndandanda wa PUR foam thermal conductivity mozunguliraλ50 = 0.0260–0.027 W/(m·K), koma izi zikuyenera kuwonedwa ngati chinthu-chidziwitso chenicheni m'malo mwa mtengo wapaipi iliyonse yotsekeredwa ndi thovu la polyurethane.

Otsika matenthedwe conductivity amathandiza m'njira zingapo:

• amachepetsa kutentha kwa mapaipi aatali amadzi otentha;
• imapangitsa kuti magetsi azitentha m'chigawo;
• amachepetsa kutentha kosafunikira pakati pa zomera ndi ogwiritsa ntchito mapeto;
• kumathandiza kukhazikika kwa kutentha kwa madzi ozizira mu maukonde ozizira;
• amachepetsa chiwopsezo cha condensation pamene kuwongolera kwa nthunzi ndi kusindikiza jekete kumapangidwa bwino.

Mtengo waukadaulo sikuti ndi "kupulumutsa mphamvu." Muukonde wautali wotentha, kutsika kwa kutentha kumathandiziranso kukhazikika kwadongosolo komanso kumachepetsa chipukuta misozi yofunikira pakugwira ntchito.

2. Kukwanira Kwabwino kwa Ma Direct Buried Insulated Pipe Systems

Polyurethane insulated chitoliro makamaka wamba mwachindunji kukwiriridwa Kutentha maukonde. M'mapangidwe awa, chitoliro chautumiki chimanyamula kupanikizika ndi kutentha, kutsekemera kwa thovu la PU kumachepetsa kutentha, ndipo chotchinga chakunja cha HDPE chimateteza wosanjikiza kuti asagwirizane ndi nthaka, chinyezi, kupsinjika kwa backfill ndi kuwonongeka kwakung'ono kwamakina pakuyika. Kusonkhana kwa chitoliro chomangika kumathandizanso kuti chitoliro chautumiki, wosanjikiza wa insulation ndi casing akunja agwire ntchito ngati dongosolo limodzi.

Dongosololi ndi lothandiza pomwe mapaipi amayenera kukwiriridwa pansi pa misewu, makonde, malo opangira mafakitale, kapena njira zotenthetsera zamatauni. Poyerekeza ndi chitoliro chopanda kanthu komanso loose field-zotsekera, fakitale-yopangidwa kale-paipi yachitsulo yotsekeredwa imapangitsa kuti ikhale yoyendetsedwa bwino isanakhazikitsidwe, makamaka pamene mitopeyo imafuna kukhuthala kokhazikika komanso jekete lakunja mosalekeza.

Kwa machitidwe oyikidwa mwachindunji, ubwino umachokera ku msonkhano wonse:

• chitoliro chautumiki chimanyamula kuthamanga ndi kutentha;
• kusungunula thovu la PU kumachepetsa kutentha;
• chosungira chakunja cha HDPE chimagwira ntchito ngati chotchinga chotchinga ku chinyezi cha nthaka ndi kuwonongeka kwa kagwiridwe;
• chomangira chomangira chimathandiza kusunga chitoliro cholumikizira mkati mwa casing;
• kachitidwe olowa kulumikiza zigawo chitoliro pambuyo kuwotcherera kapena unsembe.

Ichi ndichifukwa chake mawu ngaticorrosion-chikopa chakunja chosamva, HDPE jekete insulated chitoliro,ndimwachindunji kukwiriridwa kutchinjiriza chitolironthawi zambiri amawonekera pamodzi. Chophimba chakunja sichimalowetsa mwachindunji chitetezo cha dzimbiri pa chitoliro chautumiki, koma chimathandizira kuti madzi asafike pamtunda wotsekera ndi pamwamba pa chitoliro.

Komabe, kuikidwa m'manda mwachindunji kumangogwira ntchito bwino pamene jekete ndi malo olowa m'munda amakhala osindikizidwa. Chitoliro chosakanizidwa ndi madzi sichimapangidwa ndi thovu lokha; zimatengera chotengera chakunja, manja olumikizana, kutsekeka kwa casing, ndi mtundu wa kukhazikitsa.

3. Factory Yogwirizana Kwambiri-Yapanga Insulation Quality

Chitoliro cha chitsulo cha polyurethane pre-chitoliro chachitsulo chopangidwa ndi chitsulo chimapangidwa mokhazikika. Poyerekeza ndi zotsekera zomwe zimagwiritsidwa ntchito pamalo onse, zotsekera za fakitale-zimatha kupangitsa kuti thovu likuchulukira mofanana, kuyanika kwa casing, concentricity, ndi kupanga jekete lakunja.

Izi ndizofunikira chifukwa magwiridwe antchito amatenthedwe amakhudzidwa ndi zambiri zomwe siziwoneka nthawi zonse mukayika:

• kudzaza chithovu kosakwanira kungapangitse malo otentha otentha;
• kugwirizana kosauka kungakhudze kukhazikika kwa dongosolo;
• thovu voids akhoza kuchepetsa matenthedwe ntchito;
• casing eccentricity kungachititse kuti makulidwe osagwirizana;
• malo owonongeka a jekete amatha kukhala chinyezi-polowera.

Kupanga fakitale sikuchotsa zoopsa zilizonse, koma kumachepetsa kusiyanasiyana komwe kumabwera chifukwa cha nyengo, kupezeka kwa malo, luso lantchito, ndi kuwunika kochepa.

4. Kuyika Mwachangu kwa Magawo a Mapaipi Aatali

Chifukwa chosanjikiza chotchinjiriza ndi chotchingira chakunja chimagwiritsidwa ntchito pafakitale, ntchito yakumunda imatha kuyang'ana kwambiri pakuyatsa mapaipi, kuwotcherera, kutsitsa ngalande ndi kumaliza limodzi. Izi zimachepetsa kuchuluka kwa -ntchito zotsekera pamalo, makamaka potenthetsa m'chigawo chachitali, madzi ozizira komanso magawo a mapaipi okwiriridwa.

Mfundo yofunika kwambiri ndi yakuti chiopsezo choyika sichikutha; imasunthira kugawo lolumikizana kumunda. Pambuyo kuwotcherera kwa chitoliro, gawo lolumikizana liyenera kutsukidwa, kuuma, kutsekedwa ndi kusindikizidwa bwino. Kuyika kwa manja, kudzaza thovu, kutsekedwa kwa casing ndi kupitirira kwa jekete zonse ziyenera kufufuzidwa musanaikidwe, chifukwa ngakhale mpata waung'ono kapena m'mphepete mwawo osatsekedwa bwino, madzi apansi amalowa m'kati mwake ndi kuchepetsa kutentha kwa nthawi yaitali-.

1. Mtengo Wokwera Woyamba Kuposa Kusungunula Kwapaipi Yoyambira

Choyipa chimodzi cha mapaipi otsekemera a polyurethane ndi mtengo wokwera woyamba. Chitoliro cha -chotsekeredwa kale chimaphatikizapo zambiri kuposa chitoliro cha zitsulo ndi wosanjikiza; imakhudzanso jakisoni wa thovu kufakitale, chosungira cha HDPE, chitoliro-mu-kupanga mapaipi, zida zophatikizira zinthu komanso kuchuluka kwa zoyendera.

Kusiyana kwa mtengo kumakhudzidwa makamaka ndi:

• utumiki chitoliro chuma ndi khoma makulidwe;
• makulidwe a insulation;
• HDPE casing awiri ndi makulidwe a jekete;
• zida zolumikizirana zam'munda ndi zida zosindikizira;
• kuchuluka kwa zonyamula chifukwa cha kukula kwake kwakukulu.

Pamapaipi ang'onoang'ono owonekera, malo osavuta-zotsekera atha kukhala osinthika. Kwa mapaipi otenthetsera okwiriridwa kwa nthawi yayitali, chitoliro cha polyurethane pre{2}}chitoliro chotsekeredwa nthawi zambiri chimasankhidwa chifukwa chotchingira ndi chitetezo chimamangidwa kale mu chitoliro.

2. Kusindikiza Kophatikizana Munda Ndi Chofooka Chachikulu

Gawo la chitoliro chowongoka limapangidwa mufakitale, koma zolumikizana pakati pa zigawo za chitoliro zimamalizidwa pamalopo. Ichi ndi chimodzi mwazinthu zofowoka zaukadaulo zamakina-zotsekeredwa kale.

Ngati cholumikizira chamunda sichinasindikizidwe bwino, madzi amatha kulowa mugawo lotsekera. Kulowa kwamadzi m'malo olumikizira mapaipi otsekeredwa kumatha kuchepetsa magwiridwe antchito, kuwononga mawonekedwe a thovu, ndikuwonjezera chiwopsezo cha dzimbiri kuzungulira chitoliro chautumiki. Vutoli ndi lalikulu kwambiri pamanetiweki okwiriridwa chifukwa vutolo limatha kubisika mpaka kutentha kwayaka, ma alarm a chinyontho, kukhazikika kwa nthaka, kapena kuwonongeka kwa dzimbiri. Kukwapula kwa jekete la HDPE, kuonongeka kotsekera, kapena thovu lomwe lili pamalo odulidwa{3}}malo akumbuyo amathanso kukhala polowera{4}}malo olowera madzi ngati sanakonzedwe asanaikidwe.

Zomwe zimayambitsa kulephera kwa kusindikiza kwa olowa ndi:

• osauka pamwamba kuyeretsa pamaso unsembe manja;
• madzi amvula kapena pansi amalowa asanatseke;
• kudzaza chithovu chosakwanira pamgwirizano;
• kutseka kwa thumba laling'ono kapena kutsekedwa kwa thumba;
• mapeto a casing owonongeka;
• kusamalidwa kolakwika kwa nthambi za nthambi, zopindika, kapena zochepetsera;
• kukonza bwino kwa mabala a jekete kapena kukwapula.

Kwa mapaipi otsekemera a polyurethane, chophatikiziracho chiyenera kuchitidwa ngati gawo la zotsekemera, osati ngati tsatanetsatane wa zomangamanga. TS EN 489-mitundu yolumikizirana imayang'ana ndendende pamalowa: zolumikizirana pakati pa mapaipi opangidwa ndi fakitale, zolumikizira, kapena zomangira ma valve mumanetiweki amadzi otentha.

3. Kukonza Nkovuta Pambuyo Kuikidwa

Kuipa kwina kwa mapaipi otchinjiriza a polyurethane ndizovuta kukonza pambuyo pa maliro. Pamene mapaipi aikidwa, kudzazidwa m'mbuyo, ndi kutsekedwa, makina otsekemera sangathe kuyang'aniridwa mosavuta monga kutsekemera kwa mapaipi owonekera.

Ngati chotengera chakunja chawonongeka kapena kutchinjiriza kunyowa, kukonza kungafune njira zingapo:

• kupeza gawo lomwe lakhudzidwa;
• kukumba payipi;
• kudula kapena kutsegula malo owonongeka a jekete;
• kuyang'ana ngati thovu la PU ndi lonyowa kapena lonyowa;
• kuyanika, kubwezeretsa, kapena kubwezeretsanso zotsekemera;
• kukonza casing;
• kukonzanso mgwirizano kapena jekete;
• kubwereranso kachiwiri.

Izi zimapangitsa kulephera kwa mapaipi apansi panthaka kukhala okwera mtengo komanso kuwononga nthawi-kuposa kukonza zotchingira pamwamba. Vuto si mtengo wantchito; ndikonso kusokoneza kwa ma network otentha kapena ozizira.

4. Kutentha kwa malire ndi Kuopsa kwa Foam Kukalamba Kuyenera Kuyang'aniridwa Mosamala

Foam ya polyurethane imagwira ntchito bwino m'madzi ambiri otentha ndi madzi ozizira, koma si yoyenera pa-kutentha kwakukulu kulikonse. EN 253-mapaipi amtundu wa pre-insulated amagwiritsidwa ntchito makamaka pamanetiweki amadzi otentha okwiriridwa mwachindunji, okhala ndi maumboni omwe nthawi zambiri amatchula kagwiritsidwe ntchito kosalekeza mpaka madigiri 120 komanso kutentha kwanthawi zina mpaka madigiri 140 pamakina ena.

Izi sizikutanthauza kuti chitoliro chilichonse chopangidwa ndi thovu la polyurethane chimatha kugwira ntchito bwino pazitenthazo. Kutentha kwenikweni kumatengera kupangidwa kwa thovu, kamangidwe ka chitoliro, mkhalidwe wautumiki wosalekeza, khalidwe laukalamba ndi muyezo wogwiritsiridwa ntchito wa polojekiti. Kutentha kwa nthawi yayitali-kungayambitsekukalamba kutentha, pamenekukhudzana ndi chinyezipambuyo kuwonongeka kwa jekete kapena kulephera kwa olowa m'munda kumatha kuchepetsa ntchito yotchinjiriza.

Kuwonongeka kwa thovu kumatha kuwoneka ngatikuchuluka matenthedwe madutsidwe, kulumikizana kofooka,kuchepa kwa thovu kapena kusweka, ndi kutayika kwa kutentha komweko pamagulu kapena magawo owonongeka. Kwa mapaipi a nthunzi, mizere yotentha kwambiri-kapena yopitilira{2}}kutentha kosalekeza, zotchingira zinthu monga mineral wool, calcium silicate kapena magalasi a cell zitha kukhala zoyenera kuposa thovu la polyurethane.

5. Zazikulu Zakunja Diameter Zimakhudza Mapangidwe ndi Kuyika Malo

Chitoliro chotchinjiriza cha polyurethane chili ndi mainchesi okulirapo akunja kuposa chitoliro chautumiki. Kukula komaliza kumaphatikizapo chitoliro chachitsulo OD, makulidwe a insulation, ndi casing HDPE. Chitoliro chokulirapo chakunja chakunjachi chimakhudza m'lifupi mwa ngalande, katalikirana, mayendedwe, masanjidwe othandizira, ndi kapangidwe koyenera.

Mwachitsanzo, makina awiri atha kugwiritsa ntchito chitoliro chofanana cha DN koma amakhala ndi mainchesi osiyanasiyana chifukwa cha makulidwe osiyanasiyana otchingira kapena ma casing angapo. Izi zimakhudza:

• ngalande yokumba m'lifupi;
• kusiyana pakati pa mizere yoperekera ndi yobwerera;
• bend radius ndi chilolezo choyenera;
• backfill material volume;
• mayendedwe ndi malo osungira;
• kukula kwa manja olowa m'munda.

Izi ndi luso malire kuti nthawi zambiri kunyozedwa pamene kokha mkati utumiki chitoliro kukula amaganiziridwa.

Tsitsani: Ubwino wa Chitoliro cha Polyurethane & Zochepa Zochepa

Mapaipi otsekemera a polyurethane si njira yabwino yothetsera mapaipi aliwonse. Kuchita kwawo kuyenera kufananizidwa ndi zida zina zotchinjiriza molingana ndi kutentha, chinyezi, kuyatsa moto, njira yoyikapo, ndi njira yokonzera.

Tsitsani: Kufananiza kwa Pipe Insulation Material

Foam ya polyurethane imagwira ntchito bwino pomwe kutentha pang'ono, kutsekereza pang'ono, ndi kulumikiza mapaipi a fakitale-ndikofunikira. Ubweya wa mchere kapena magalasi am'manja atha kukhala oyenera kwambiri pomwe kukana moto, kutentha kwambiri, kapena kukana chinyezi kwambiri ndikofunikira.

Kugwiritsa ntchito bwino mapaipi a polyurethane kutchinjiriza kumatengera momwe amagwirira ntchito komanso malo oyika. Zotsatiraziluso zinthu ziwunikidwe musanasankhe mtundu uwu wa chitoliro. Pama projekiti omwe amafunikira fakitale-kupanga mapaipi otsekera okhala ndi chitoliro chodziwika bwino, thovu la PU, jekete lakunja, ndi kuchuluka kwa zotumizira,Kusungunula mapaipi a polyurethaneziyenera kuwunikiridwa pamodzi ndi kutentha kwa ntchito, makulidwe a kutchinjiriza, zinthu zosungira, dongosolo lolumikizana, ndi njira yoyika.

Tsitsani: Mndandanda Wosankha Mapaipi Opangidwa ndi Polyurethane

Mapaipi opaka polyurethane nthawi zambiri amakhala oyenera:

• mwachindunji m'manda m'manda maukonde madzi otentha;
• machitidwe otenthetsera mapaipi achigawo;
• madzi ozizira ndi mizere yobwerera;
• mafakitale matenthedwe ntchito mizere;
• ozizira-mapaipi okwiriridwa m'dera momwe amafunikira kusunga kutentha.

Amafuna kuunikanso mozama kwa:

• mapaipi a nthunzi kapena -kutentha kosalekeza;
• pamwamba-malo otseguka okhala ndi moto{1}}zofunika zachitetezo;
• njira zofukula pafupipafupi kapena kuwonongeka kwa makina;
• malo omwe kukonzanso kwamtsogolo kumakhala kovuta.

Mawu aulere

FAQ

 

 

01. Kodi choyipa chachikulu cha chitoliro cha polyurethane insulated ndi chiyani?

Choyipa chachikulu nthawi zambiri si chitoliro chowongoka, komagawo logwirizana. Ngati manja olowa, kudzaza thovu, kutsekedwa kwa casing kapena kukonza jekete sikunasindikizidwe bwino, madzi amatha kulowa mumtambo wotsekera. Chinyontho chikafika pa thovu la PU, kutentha kumatha kutsika ndipo chiwopsezo cha dzimbiri mozungulira chitoliro chautumiki chikhoza kuwonjezeka.

02.Kodi mapaipi opangidwa ndi polyurethane ndi oyenera kuyikidwa m'manda mwachindunji?

Inde, mapaipi opangidwa ndi polyurethane amagwiritsidwa ntchito kwambirimwachindunji kukwiriridwa madzi otentha maukondendi machitidwe otenthetsera chigawo. Dongosolo lamtundu wa EN 253 limagwiritsa ntchito chitoliro chachitsulo, kusungunula thovu la polyurethane ndi chotchinga cha polyethylene. Chofunikira ndichakuti thumba lakunja ndi zolumikizira zam'munda ziyenera kukhala zotsekedwa ndi chinyezi cha dothi, madzi apansi panthaka komanso kuwonongeka kobwerera.

03.Kodi polyurethane insulated chitoliro ntchito mapaipi nthunzi?

Osati mwachisawawa. PU insulated pipe imagwiritsidwa ntchito kwambiri popanga madzi otentha, madzi ozizira komanso -zida zotenthetsera zapakatikati, koma mapaipi a nthunzi amafuna kuunikanso kutentha kosiyana. Kutentha kosalekeza-kungayambitse thovu kukalamba, kuchulukitsitsa kwa kutentha, kapena kuchepa kwa thovu, kotero kuti mineral wool, calcium silicate kapena magalasi a cell atha kukhala oyenera pamizere ya nthunzi.

04.Kodi chitoliro cha polyurethane insulated chimafanana bwanji ndi ubweya wa mchere ndi kusungunula magalasi a magalasi?

Polyurethane thovu ndi wamphamvu kumenekuchepa kwa kutentha kochepa, makulidwe otchinjiriza ophatikizika ndi fakitale-kulumikiza mapaipi ndi zofunika. Ubweya wa mchere nthawi zambiri umakhala wabwinoko pakafunika-kutentha kwambiri kapena moto-zofuna kukana. Magalasi a m'manja nthawi zambiri amaganiziridwa pamene kusagwirizana ndi chinyezi, mphamvu yoponderezedwa kapena kukwiriridwa/kuzizira kwambiri-zimene zimagwiritsidwa ntchito ndizofunika kwambiri kuposa mtengo woyambira.

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