Kev faib tawm ntawm cov khoom siv hauv caj npab

Ntau tus neeg muas zaub nug txog cov khoom siv ntawm crane raj thaum sab laj nrog crane tube manufacturers. Niaj hnub no, tus editor yuav qhia rau koj seb hom ntaub ntawv twg yog siv rau crane raj thiab yuav tsum tau ceev faj thaum xaiv lawv?
Lub crane yeeb nkab steel-yas composite pipeline ua raws li cov qauv kev lag luam tshuaj "Plastic lined (PP, PE, PVC) steel kav thiab fittings" HG 20538-1992 thiab "PTFE lined steel kav thiab fittings" HG / T {{ 2}} ib. Crane yeeb nkab forgings yuav tsum ua raws li lub teb chaws tus qauv tam sim no "Steel Butt Welded Seamless Pipe Fittings" GB/T 12459-2005, "Carbon Steel thiab Low Alloy Steel Forgings for Pressure Vessels" JB4726-2000, "Carbon Steel thiab Tsawg Alloy Steel Forgings rau Cov Dej Kub Kub Siab" JB4727-2000, thiab cov qauv kev lag luam tam sim no "Stainless Steel Forgings for Pressure Vessels" JB4728-2000.
1. Feem ntau, cov ntaub ntawv tsis muaj corrosive petrochemical kua yog ua los ntawm cov yeeb nkab zoo carbon steel.
2. Nws yog ib qho tsim nyog los tswj cov purity ntawm petrochemical kua cov ntaub ntawv thiab tiv thaiv kev sib tov ntawm xeb. Stainless hlau kav yuav tsum tau siv rau loading thiab unloading caj npab pipelines. Yog tias cov ntaub ntawv ua kua tau siv ncaj qha rau hauv kev lag luam khoom noj khoom haus, cov ntaub ntawv stainless hlau kuj yuav tsum tau siv rau kev thauj khoom thiab tshem tawm caj npab pipelines.
3. Cov ntsiab cai xaiv rau kev thauj khoom thiab tshem tawm caj npab ntawm cov khoom siv corrosive acidic thiab alkaline:
3.1 Nitric acid: Cov kav hlau stainless lossis cov kav dej yas yuav tsum tau siv rau kev thauj khoom thiab tshem tawm caj npab. Yog tias cov yeeb nkab ntsug tau muab tso rau hauv lub tsheb tank ntev ntev, cov kav dej txhuas kuj tuaj yeem siv rau cov yeeb nkab ntsug.
3.2 Glacial acetic acid: Acid resistant stainless hlau khoom (316L) tuaj yeem xaiv.
3.3 Sulfuric acid: 98 feem pua ​​​​sulfuric acid thiab fuming sulfuric acid yuav tsum tau ua los ntawm high-zoo carbon steel kav, thaum dilute sulfuric acid (qis dua 80 feem pua) yuav tsum tau ua los ntawm steel lined PTFE kav, steel lined PVC kav, steel lined PP kav. , thiab lwm yam. Yog tias cov yeeb nkab ntsug yuav tsum tau muab tso rau hauv lub tank tsheb, PVC yeeb nkab, PP yeeb nkab, PTFE yeeb nkab, los yog fiberglass yeeb nkab tuaj yeem siv los ntxig cov yeeb nkab ntsug.
3.4 Hydrochloric acid: Kev xaiv cov khoom siv yog tib yam li cov khoom siv sulfuric acid dilute.
3.5 Caustic soda tov (nyob rau hauv chav tsev kub): Lub chaw thau khoom thiab unloading caj npab yog ua los ntawm high-zoo carbon steel kav.