Xaiv ntawmDiaphragm Pumps(tshwj xeeb yog Metering/Dosing Pumps) thiabPeristaltic Pumps(Hose Pumps) rau kev kho dej khib nyiab feem ntau nyob ntawmhom tshuajkoj tso thiabprecisionxav tau.
Thaum ob qho tib si yog "zoo hloov pauv" twj (zoo rau kev ntsuas), lawv ua haujlwm ntawm cov ntsiab lus sib txawv.
Nov yog cov ncauj lus kom ntxaws los pab koj txiav txim siab:
1. Diaphragm Pumps (Metering Pumps)
Nws ua haujlwm li cas:Lub diaphragm hloov tau txav rov qab mus rau hauv lub chamber, kos cov kua dej los ntawm lub valve inlet thiab thawb nws tawm los ntawm lub qhov hluav taws xob valve.
Qhov zoo tshaj plaws rau:Ntxuav, tsawg- tshuaj viscosity (coagulants, acids, bases).
Pros:
* High Precision:Lawv yog cov qauv kub rau metering (dosing). Cov nqi ntws tuaj yeem hloov kho kom raug (feem ntau mus rau 1% qhov tseeb) siv lub sijhawm ntev los yog kev hloov ceev.
* Siab siab:Lawv tuaj yeem tswj tau qhov kev tawm siab siab (txog 100+ bar), ua rau lawv zoo tagnrho rau kev txhaj tshuaj rau hauv cov kav dej uas muaj zog.
* Tsis muaj kab mob:Cov tshuaj tsis tuaj yeem cuam tshuam nrog lub tshuab tsav.
Cons:
* Valve Blockages:Qhov no yog lawv qhov tsis muaj zog tshaj plaws. Yog hais tias cov tshuaj crystallizes, los yog yog hais tias muaj me me particulates, lub check li qub yuav clog, nres qhov ntws.
* Shear Sensitive:Lub nraub qaum-thiab- tawm mus thiab li qub tuaj yeem txiav cov polymers rhiab heev, tawg lawv cov saw hlau molecular thiab ua rau lawv tsis zoo.
* Kev tu:Diaphragms nws thiaj li qaug zog thiab rupture. Valves thiab O-rings yuav tsum tau ntxuav ntau zaus los yog hloov.
2. Peristaltic Pumps (Hose Pumps)
Nws ua haujlwm li cas:Rollers los yog khau tig rau hauv ib lub casing, nyem ib tug saj zawg zog hose. Qhov no tsim lub tshuab nqus tsev uas rub cov kua dej los ntawm lub hose. Tsis muaj li qub.
Qhov zoo tshaj plaws rau:Cov kua nplaum nplaum, abrasive slurries, thiab shear-sensitive polymers.
Pros:
* Tus kheej-Priming & Qhuav-Khiav:Lawv tuaj yeem khiav qhuav yam tsis muaj kev puas tsuaj thiab tuaj yeem ua rau lawv tus kheej txawm tias qis dua cov kua dej.
* Tsis muaj li qub (tsis muaj clogging):Vim tias tsis muaj cov tshev valve, lawv zoo heev rau gritty sludge, txiv qaub slurries, los yog polymers uas nyiam tsim.
* Yooj yim rau Polymers:Cov dej ntws zoo txo qis qis, khaws cov saw ntev ntawm Polyacrylamide (PAM).
* Reversible:Koj tuaj yeem thim rov qab cov kev taw qhia ntws los ntawm kev thim rov qab lub cev muaj zog (tseem ceeb rau cov kab dej ntws).
Cons:
* Hose Hnav:Lub hose tsuas yog hnav ib feem, tab sis nws hnav tawm vim yog qhov nyem tas li. Nws yog ib qho khoom siv nrog lub neej ntev (tus nqi).
* Kev txwv siab:Cov twj tso kua mis peristaltic feem ntau tsis tuaj yeem tswj qhov siab siab li cov twj diaphragm (feem ntau max 10-16 bar, tab sis qee qhov qauv hnyav dua).
* Pulsation:Lawv tsim kom muaj zog pulsating ntws (xws li lub plawv dhia), uas tuaj yeem ua rau kev ntsuas qhov nyuaj yam tsis muaj dampener.
3. Kev txiav txim siab Matrix: Thaum twg siv qhov twg?
| Scenario | Pom zoo Pump | Yog vim li cas |
| Pumping PAC (Polyaluminium Chloride) los yog Ferric | Diaphragm twj tso kua mis | Cov no yog cov kua dej huv. Diaphragm twj tso kua mis muab siab dua thiab precision. |
| Pumping Acids (H2SO4) lossis Caustic (NaOH) | Diaphragm twj tso kua mis | Cov no yog corrosive tab sis huv si. Diaphragm twj nrog PVDF hau ua haujlwm zoo tshaj plaws ntawm no. |
| Pumping PAM (Polymer) Solution | Peristaltic twj tso kua mis | Polymers yog shear-sensitive. Peristaltic twj khaws cia lub zog polymer zoo dua li cov twj diaphragm. |
| Pumping txiv qaub Slurry los yog Bleach | Peristaltic twj tso kua mis | Txiv qaub muaj cov khoom uas txhaws diaphragm li qub. Bleach tawm tsam li qub / cov ntsaws ruaj ruaj ntawm cov twj diaphragm; peristaltic tsuas yog nthuav tawm lub hose. |
| Txhaj rau hauv High -Txoj Kab Siab | Diaphragm twj tso kua mis | Diaphragm twj tso kua mis yog tsim los rau kev tso tawm siab. |
| Pumping Thick Sludge los yog Dewatered ncuav mog qab zib | Peristaltic twj tso kua mis | High viscosity thiab abrasion xav tau lub ruggedness ntawm lub twj tso kua mis hose. |
4. Yam tseem ceeb uas yuav tau xav txog
A. Shear Sensitivity (Qhov tseem ceeb rau Polymers)
* DAF lossis Sludge Dewatering:Yog koj nqus dejPAM (Polymer), Peristalticfeem ntau zoo dua. Cov twj diaphragm tuaj yeem "sib ntaus" cov polymer, txo nws txoj kev ua tau zoo, uas txhais tau tias koj yuav tsum tau yuav cov tshuaj ntxiv kom them rov qab.
* Kev kho mob tseem ceeb:Yog koj nqus dejPAC, DiaphragmNws zoo vim tias PAC tsis yog shear rhiab heev.
B. Kev Kho Vaj Tse
* Diaphragm:Koj yuav siv sij hawm unclogging li qub thiab hloov diaphragms. Koj yuav tsum tau kuaj xyuas cov dej ntws tsis tu ncua (tshwj xeeb tshaj yog cov tshuaj lom neeg).
* Peristaltic:Kev tu yog yooj yim heev. Koj tsuas yog hloov lub hose (thiab qee zaum cov chais). Tsis muaj li qub los ntxuav. Txawm li cas los xij, tus nqi hloov hose tuaj yeem siab dua qhov diaphragm lub sijhawm.
C. Tshuaj Compatibility
* Diaphragm:Koj yuav tsum xyuas kom meej qhovwetted qhov chaw(lub taub hau, li qub, cov ntsaws ruaj ruaj) yog ua los ntawm cov khoom siv sib xws nrog koj cov tshuaj (xws li PVDF rau cov kua qaub, PVC rau hauv paus).
* Peristaltic:Koj tsuas yog yuav tsum tau xyuas kom meej qhovcov khoom siv hoseyog sib xws (piv txwv li, EPDM rau dej-raws li tshuaj, Viton rau roj/kua kua).
Cov lus pom zoo
1. Rau Chemical Feed Systems (PAC, Acid, Caustic):Xaiv ibDiaphragm Metering Pump. Nws yog qhov tseeb dua thiab ua haujlwm siab zoo dua.
2. Rau Polymer Ua -Cov Txheej Txheem (PAM):Xaiv ibPeristaltic twj tso kua mis. Nws tiv thaiv cov saw hlau polymer thiab tuav cov viscosity zoo dua.
3. Rau Sludge Transfer los yog txiv qaub:Xaiv ibHeavy-Lub luag haujlwm Peristaltic (Hose) Pump. Nws yuav tsis clog.