Dhuumaha PVC vs. Dhuumaha HDPE: Kee fiican?

Biyaha iyo biyo-mareenka, gudbinta gaaska, waraabka beeraha iyo mashaariic kale, PVC (polyvinyl chloride) Dhuumaha iyo HDPE (cufnaanta sare ee polyetylen) Dhuumaha waa labada tubo caag ah oo inta badan la isticmaalo. Si kastaba ha ahaatee, waxaa jira farqi weyn oo u dhexeeya labada dhinaca waxqabadka, kharashka iyo xaaladaha codsiga. Maqaalkani wuxuu ka iman doonaa sifooyinka alaabta, shuruudaha dhismaha, dhaqaalaha, ilaalinta deegaanka afar cabbir oo isbarbardhigga dhammaystiran, kuna lifaaqan kiisaska xulashada mashruuca dhabta ah, si uu kaaga caawiyo inaad hesho xalka ugu fiican.

1. Isbarbardhigga sifooyinka aasaasiga ah ee alaabta: dabacsanaan VS adag

1). Dhuumaha PVC sifooyinka

Xoog adag oo sarreeya: foorarsiga modules ≥2,400MPa, ku habboon muuqaallada u baahan xasilloonida qaabdhismeedka (sida kuwa dhisa);

Iska caabbinta daxalka kiimikada: u adkaysta acid iyo alkali, buufin milix ah, dufan, si weyn loogu isticmaalo daaweynta biyaha wasakhda kiimikada;

Kala duwanaanta heerkulka: -10℃~60℃ (qaacidada gaarka ah waxaa lagu kordhin karaa -30 ℃ ~ 90 ℃);

ololka celiye: is-daminta dabka, waafaqsan UL94 V-0 heerka dabka.

2). Tilmaamaha dhuumaha HDPE

Dabacsanaan sare: raadiyaha foorarsan ayaa gaari kara 20 jeer dhexroorka tuubada, ku habboon dhigista trenchless (sida dhismaha tuubooyinka jeebka);

Iska caabbinta heerkulka hooseeya: -60℃ wali waa laastikada, ku haboon gudbinta gaaska meelaha qabow;

Iska caabbinta saamaynta: xoog saamayn muuqata ≥30kJ/m², iska caabin qallafsan dhulgariir xooggan;

Iska caabbinta korriinka dillaaca oo gaabis ah: Saadaasha nolosha in ka badan 50 sanado (Heerka ASTM D2837).

Gabagabo Cilmiyeed:

Dooro PVC: muuqaalo u baahan taageero adag, iska caabin daxalka, iyo ilaalinta dabka (sida dhisidda bullaacadaha, tuubooyinka warshadaha);

Dooro HDPE: waxay u baahan yihiin iska caabin cadaadis dabacsan, iska caabinta heerkulka hooseeya, dhigista masaafo dheer ee goobta (sida dhuumaha gaaska, galka fiilada badda hoosteeda mara).

2. Isbarbardhigga kharashka dhismaha iyo rakibidda

Isbarbardhigga kiisaska:

Mashruuca biyo gelinta dawladda hoose (10km DN200 dhuumaha) :

Wadarta qiimaha PVC: kharashka alaabta $1.8 milyan + kharashka rakibaadda $500,000 = $2.3 milyan;

Wadarta qiimaha HDPE: kharashka alaabta $2.4 milyan + kharashka rakibaadda $1.2 milyan = $3.6 milyan;

PVC wax badbaadiya 36% ee kharashka oo soo gaabiyo muddada dhismaha by 25 maalmo.

3. Falanqaynta dhaqaalaha ee wareegga nolosha oo dhan

1. Maalgelinta bilowga ah

Qiimaha PVC inta badan waa 15% ~ 30% ka hooseeya HDPE (Tubooyinka DN100 tusaale ahaan: PVC≈$30/m, HDPE≈$40/m);

Xaalad ka baxsan: HDPE waxay badbaadin kartaa kharashyada dayactirka dusha sare ee wadada mashaariicda aan qodnayn, waxaana laga yaabaa in qiimaha guud uu yaraado.

2. Qiimaha dayactirka

PVC: ku dhawaad ​​dayactir la'aan (iska caabin daxalka, qolof lahayn);

HDPE: tayada dhalaalaysa kulul ee wadajirku waxay saameeyaan kalsoonida nidaamka waxayna u baahan yihiin in si joogto ah loo tijaabiyo (gaar ahaan mashaariicda gaaska).

3. Waxtarka tamarta tamarta

Wanaajinta gidaarka gudaha ee PVC (iskudarka qallafsanaanta 0.009) wuu ka fiican yahay HDPE (0.011), caabbinta dareeraha waxaa la dhimay 18%, Isticmaalka tamarta bamgareynta muddada-dheer ayaa ka hooseeya.

4. Eilaalinta deegaanka iyo muranka sii jirista

1. Dib u warshadaynta

PVC: jir ahaan dib ayaa loo warshadayn karaa sagxadaha, cirifka, iwm., balse loo baahan yahay in la kala saaro oo la nadiifiyo (daaweynta koloriin adag);

HDPE: Habka dib-u-warshadaynta ayaa aad u bisil, iyo walxaha dib loo warshadeeyay ayaa si weyn loogu isticmaalaa baakadaha dhalooyinka iyo tuubooyinka (heerka soo kabashada wareegga xiran ayaa gaari kara 95%).

2. Isticmaalka tamarta wax soo saarka

Isticmaalka tamarta wax soo saarka PVC: qiyaastii 18MJ/kg (inta badan laga bilaabo habka chlor-alkali);

Isticmaalka tamarta wax soo saarka HDPE: qiyaastii 25MJ/kg (saliid ceyriin dilaaca ilaa ethylene);

Gabagabo: PVC waxay leedahay wax ku saabsan 28% qiiqa kaarboonka ka hooseeya HDPE (isha: Caaga Yurub).

3 Muran caafimaad

PVC: alaabta ceeriin waxaa ku jira koloriin, laakiin tuubada dhammaatay waa mid aan sun ahayn NSF/ANSI kadib 61 shahaado (waxay u baahan yihiin inay doortaan calaamad caadi ah);

HDPE: ma jiro koloriin, ma jiro caageeyayaal, Codsiyada heerka cuntada ayaa la door bidaa (sida dhuumaha biyaha la cabbo ee tooska ah).

5. Hagaha Xulashada dagaalka dhabta ah: 5 xaaladaha caadiga ah ayaa lagula talinayaa

Muuqaal 1: Shabakadda biyo-mareenka dhulka hoostiisa ee magaalada

PVC ayaa lagu talinayaa: taageerada adag waxay ka fogaataa degitaanka ciidda iyo qallooca, waxay u adkaysataa wasakhda wasakhda, oo uu leeyahay kharashka dhamaystiran ee ugu fiican.

Ka fogow talooyinka godka: Ka fogow isticmaalka PVC ee gidaarka dhuuban meelaha ay baabuurta culculus si joogto ah u gallaan.

Muuqaal 2: Khadka gaaska dabiiciga ah

Isticmaalka qasabka ah ee HDPE: dabacsanaan si aad ula qabsato curyaaminta aasaaska, iska caabbinta heerkulka hooseeya iyo ka hortagga jabka (GB 15558.1).

Muuqaal 3: Nidaamka waraabka faleebo ee beeraha

PVC ee lagu taliyay: PVC (low cost, UV resistance) for the main pipe, HDPE (flexible and easy to lay) for the branch pipe.

Muuqaal 4: Waste water pipe in chemical park

Priority PVC: Acid and alkali resistance is better than HDPE (HDPE is easy to swell under concentrated sulfuric acid environment).

Muuqaal 5: Home decoration water supply pipe

The southern region chooses PVC: kharash-ku-ool ah, dhismo ku habboon;

Northern heating pipe selection HDPE: iska caabinta heerkulka sare (80℃) performance is more stable.

The ultimate comparison table:

Alaab-qeybiye

Hal qayb oo ka mid ah Luoyang Datang Energy Tech Co., Ltd., Ltd. waa soo-saare xirfad leh iyo soo-saare tuubooyin iyo qalabyo. Waxaan bixinaa tuubooyinka PPR, Tuubooyinka PVC, Tuubooyinka PE, iyo tuubooyinka kululaynta sagxadda iyo qalabyada dhammaan noocyada tubooyinka, oo leh qiimo tayo sare leh oo tartan ah. Haddii aad hayso wax su'aalo ah oo ku saabsan tuubooyinka iyo qalabyada, fadlan ha ka waaban inaad nala soo xidhiidho. Waxaad riixi kartaa alaabta si aad nala soo xiriirto.