Nhanganyaya: Kubudirira kwetekinoroji ye polyurethane spray furo
Mumamiriro ezvinhu ekuchengetedza simba rekuvaka pasi rose uye zvinodiwa zvekuchengetedza zvakatipoteredza, polyurethane spray foam senzira yekudzivirira kupisa inoshanda, huwandu hwekushandiswa kwayo huri kuramba huchiwedzera. Parizvino, kune nzira mbiri huru dzehunyanzvi dziri pamusika: masisitimu echinyakare emvura anofema uye masisitimu matsva eHFO(hydrofluoroolefin) foam. Semugadziri wehunyanzvi wepolyurethane catalysts, tichaongorora zvizere hunhu hwehunyanzvi hwemasisitimu maviri aya, mutsauko wekushanda, uye mashandisirwo ekusarudza catalyst chaiyo yekuvandudza mashandiro esisitimu.
Ruzivo rwenzira yefuro remvura re polyurethane spray
Nheyo dzekutanga uye maitiro emakemikari
Sisitimu yeWater-Blown System (WBA) ndeimwe yetekinoroji yechinyakare uye yakakura yekubvisa furo muindasitiri yepolyurethane. Nheyo huru ndeyekushandisa mvura kuita zvinoenderana ne isocyanate (-NCO) kugadzira carbon dioxide (CO₂) segasi rinoburitsa furo:
R-NCO + H₂O → R-NH₂ + CO₂↑
Kuita uku panguva imwe chete kunogadzira chimiro chepolyurea chinoita kuti furo rive rakaomarara zvishoma. Zvakanakira zvemuchina wekugadzira furo remvura zvinosanganisira:
- Mutengo wakanakira: Mvura ndiyo inonyanya kudhura
- Kudzivirirwa kwezvakatipoteredza: Zero ODP (kugona kupera kwe ozone), GWP yakaderera (kugona kupisa kwepasi rose)
- Maitiro ekukura: makumi emakore enhoroondo yekushandisa, maparamita emaitiro akakwana
Munda wekushandisa wakajairika
1. Kudzivirira chivako: kupfapfaidza madziro nematenga panzvimbo yacho
2. Zvinhu zvinotonhorera: kudzivirira kupisa kwemarori anotonhorera uye nzvimbo inotonhorera
3. Mapaipi emumaindasitiri: anodzivirira ngura uye anodzivirira kupisa kwemapaipi epetrochemical
Hunhu hwekushanda
- Kuwanda kwehuwandu: kazhinji 30-50kg/m³
- Kufambisa kwekupisa: 0.022-0.028W/(m·K)
- Chiyero chevadzivisi: 90-95%
- Kugadzikana kwehukuru: ≤1.5% (70℃, 48h)
Kuongororwa kweHFO furo polyurethane spray foam system
Chizvarwa chitsva chetekinoroji yemagetsi inoputika
HFO(hydrofluoroolefin) blowing agent imhando yechizvarwa chechina cheblowing physical agent yakagadzirwa mumakore achangopfuura, inomiririra zvigadzirwa zvakaita seHFO-1233ZD (E) uye HFO-1336MZZ (Z). Zvichienzaniswa neHCFCS neHFC blowing agents dzechinyakare, HFO ine:
- GWP yakaderera zvikuru: kazhinji <10, yakaderera zvikuru pane zvinoshandisa kuputira zvemhando yeHFC
- Zero ODP: haikuvadzi ozone layer
- Kudzivirira kupisa kwakanaka: kutenderera kwekupisa kwechikamu chegasi kwakaderera pane CO₂
Hunhu hwemakemikari
Semushonga unopfuta, HFO inonyanya kuvimba nekuwedzera kwayo kupfuta kuti igadzire chimiro chefuro, asi ichiri kuda mvura kuti iite chikamu chemakemikari kuti ipe simba rekuwedzera furo:
Maitiro makuru: Kuwedzera kweHFO vaporization
Side reaction: H₂O + -NCO → CO₂ + polyurea
Mamiriro makuru ekushandisa
1. Kudzivirira zvivakwa zvepamusoro-soro: Mapurojekiti ekuvaka egirini ane zvinodiwa zvakasimba zvekuchengetedza zvakatipoteredza
2. Kudzivirira magetsi: firiji, hita yemvura nezvimwe zvinhu zvemumba
3. Zvemuchadenga: Mashandisirwo akakosha ane huremu hunorema uye zvinodiwa pakushanda
Hunhu hwekushanda
- Kuwanda kwehuwandu: 28-45kg/m³
- Kufambisa kwekupisa: 0.018-0.022W/(m·K)
- Chiyero chevadziviriri: 92-97%
- Kugadzikana kwehukuru: ≤1.2% (70℃, 48h)
Basa guru rezvinhu zvinokonzeresa njodzi mumasisitimu ese ari maviri
Zvimiro zveChinhu chinobatsira pakugadzira MXC-70
MXC-70 chinhu chinobatsira zvikuru uye chine hwema hushoma cheamine chakagadzirirwa furo re polyurethane spray rine hunhu hunotevera:
- Kunhuhwirira kushoma: Kuvandudza nzvimbo yekushandira uye kusangana nezvinodiwa zvebasa zvakasimba
- Kukombama kwefuro kwakatsetseka: kunopa gel yakaringana uye kuenzana kwefuro kuderedza zvikanganiso pamusoro
- Kunamira kwakawedzerwa: Kunonyanya kugadziriswa kunamira kwezvikamu zvakasiyana-siyana (simbi, huni, kongiri, nezvimwewo)
- Kushanda kwakafara: Inoenderana nemagetsi anoputira furo uye masisitimu emafuta anoputira furo eHFO
Magadzirirwo ehunyanzvi:
- Mhando yemakemikari: tertiary amine complex
- Basa: Yakakwira zviri pakati nepakati
- Kushandiswa kunokurudzirwa: 0.3-1.2php
- Nhamba yepH inoshanda: 7-10
Maitiro ekugadzira furo mumvura
MXC-70 inokonzera zvinotevera muzvishandiso zvemvura zvinopupuma:
1. Kusangana kwemvura ne isocyanate (kusangana kwe furo)
2. Kuita kwepolyols ne isocyanates (gel reaction)
3. Kuita kwekubatanidza (kuwedzera simba refuro)
Maumbirwo ayo akasiyana emamorekuru anogona kuchengetedza kushanda kwakaringana pakutanga kwekubuda kwefuro, uye kupa simba rakakwana regel padanho rekupedzisira rekubuda kwefuro, kuitira kuti pave nefuro rakafanana rine pamusoro wakatsetseka.
Basa rekugadzirisa muhurongwa hweHFO
Masisitimu eHFO anowanzo sangana nematambudziko anotevera nekuda kwekusiyana kwehunhu hwezvinhu zvinoputira:
- Kuenzana kwefuro nejeli kwakaoma kudzora
- Kupora zvishoma nezvishoma pamusoro
- Kubatana kwe substrate hakuna kugadzikana
MXC-70 inovandudza mashandiro ehurongwa hweHFO ne:
1. Gadzirisa curve yekukwira kwefuro kuti ienderane nehunhu hweHFO vaporization
2. Kuvandudza kunaka kweganda mushure mekucheneswa kweganda kuti riwedzere kunaka kweganda
3. Kuvandudza mashandiro enzvimbo uye kuwedzera kunyorova kwe substrate
Mazano ekusarudza sisitimu uye nyaya dzekushandisa
Maitiro ekusarudza system chaiyo yekufema furo
1. Funga nezvezvinodiwa nemutemo wezvakatipoteredza
- Musika wakasimba weEurope neUnited States: hurongwa hweHFO hwekutanga
- Nyika dziri kusimukira: Masisitimu emvura anoramba achikwikwidzana
2. Ongorora zvinodiwa pakuita basa
- Kufambisa kwekupisa kwakaderera zvakanyanya: Sarudza sisitimu yeHFO
- Zvinodiwa nesimba rakawanda: Masisitimu emvura anogona kunge ari nani
3. Zvaunofanira kufunga nezvemutengo
- Purojekiti ine bhajeti shoma: Sisitimu yemvura inofema
- Mapurojekiti epamusoro-soro: Mari yekuwedzera yeHFO systems inogona kugamuchirwa
Nyaya yekukumbira yakabudirira
Nyaya 1: Chirongwa chekuvaka zvirimwa (Sisitimu yemvura inofema)
- Shandisa MXC-70 catalyst mu 0.8php
- Kukwanisa kufambisa kupisa kwe 0.025W/(m·K)
- Kushanda zvakanaka kwekuvaka kwakawedzera ne15%
- Chitupa cheLEED
Nyaya yechipiri: Mutsetse wekugadzira firiji yepamusoro (HFO System)
- MXC-70 yakasanganiswa nechinhu chakakosha che catalyst
- Kufambisa kwekupisa kwakaderera kusvika pa0.019W/(m·K)
- Kuwanda kwefuro kwakaderera ne12%
- Kuchengetedza mari yemagetsi pagore inosvika $80,000
Mafambiro ebudiriro yeramangwana uye maonero etekinoroji
1. Kugadziriswa kwesystem yemvura inopupuma nguva dzose
- Kushanda kwakavandudzwa ne catalysts itsva
- Deredza kushandiswa kwemvura kuti uderedze kupwanyika
- Kugadzirwa kwemafomula anodzivirira moto zvakanyanya
2. Kufambira mberi kwetekinoroji yeHFO
- Kugadzirwa kwezvinhu zvinoshandisa HFO blowing agents zvinodhura zvishoma
- Kugona kuchinja maitiro zviri nani
- Kuvandudza kugadzikana kwehurongwa
3. Kuvandudzwa kwekataviridzitekinoroji
- Reactive catalyst (kuderedza VOC)
- Sisitimu ye catalytic ine njere (inoenderana nemamiriro akasiyana)
- Chinobatidza zvinhu zvakawanda (chinobatidza zvinhu + chinodzora moto + chakagadzikana)
Mhedziso uye zano
Masisitimu ekugadzira furo remvura neHFO ane zvakanakira, uye sarudzo yacho inoenderana nezvinodiwa pakushandisa, zvinodiwa zvakatipoteredza uye mitengo. Pasinei nekuti ndeipi sisitimu inoshandiswa, kusarudza chinhu chinobatsira pakugadzira furo rakakodzera ndicho chinhu chakakosha pakuona kuti chigadzirwa chacho chakanaka uye kuti chinogadzirwa zvakanaka.
MXC-70 chinhu chinobatsira zvikuru uye chakasimbiswa pamusika chine mashandisirwo anotevera:
- Inopa huwandu hwakaringana hwemafuro/gel kune masisitimu emvura anoputira furo
- Gadzirisa matambudziko ekugadzirisa nekubatanidza pamusoro pemasisitimu eHFO
- Zvinhu zvisina kunhuhwirira zvakanaka zvinovandudza nzvimbo yekushanda
- Kuvandudza kushanda zvakanaka kwekugadzira uye kugara kwenguva refu kwezvigadzirwa
Nguva yekutumira: Kubvumbi-15-2025