Plet hit eksenja em i wanpela kain hat eksens ikwipmen, we i gat ol gutpela samting olsem ol narapela hat eksens ikwipmen i no inap long winim: em i gat bikpela hat trensfer koefisen, liklik hat lus, liklik futprin, kompak na lait straksa, isi mentenens na klinim,Plet hit eksenja i gat planti kain aplikesen na longpela sevis laip. Tasol ol i gat sampela hevi tu, olsem presa i no inap winim 2.5Mpa, tempereja i no inap winim 250 digri Selsias, i no inap senisim hat bilong ol bikpela hap na ol longpela faiba, ol i no inap yusim long ol wok kondisen i save bagarapim tru ol samting, na ol i save kisim strong. Ol samting i kam bihain em wanpela wok painimaut bilong sampela samting i no stret long .ol hat eksenja:
Ol as as:
Skelim/klok bilong ol plet bilong senisim hat: Kalsium na magnesium aion na ol pipia insait long wara i stap long pes bilong ol plet, na kamapim wanpela skel leia i gat liklik thermal konduktiviti tru; sot seket bilong wara: ol gasket bilong silim plet i wok long go lapun o i no stret, Dispela i mekim na sampela wara i kol na hat i save pas stret na ol i no ken senisim hat; plet senel blok: ol strongpela hap na ol rop (olsem pipia na slari) insait long wara i pas long plet gaid eria o flo senel, na dispela i daunim gutpela ples bilong senisim hat.
Ansa:
01
Kemikel deskeling (bilong skelim):
Stopim ol samting bilong wok, rausim wara long wara, na rausim wara wantaim wanpela marasin bilong klinim i no strong (olsem 5%-8% sitrik asit solusen bilong abrusim korosen bilong ol steinles stiel plet) inap 2-4 aua,
02
bihain rinsim wantaim klinpela wara inap long taim em i no gat wok;Sapos skel leit i hat (olsem kalsium kabonet hat skel), sokim inap 1 aua pastaim long em i go bek gen.
03
Noken yusim ol rot bilong stretim hevi olsem haidroklorik asit (we inap bagarapim isi isi plet pasivesen piksa).
04
Wok bilong klinim bodi (bilong pasim rot):
Disassemblem hit eksenja, rausim ol plet, na rausim flow senel wantaim hai-presa wara gan (presa Les winim o wankain olsem 0.8MPa long abrusim bagarap bilong ol plet);
Ol as as: Gasket i wok long go lapun/damej: Long-taim bikpela tempereja na presa senis i mekim na gasket i lusim elastisiti, o wara i bagarap (olsem asidik wara) i mekim na gasket i swel na bruk; Plet defomesen/misalignmen: I no gat wok long taitim ol bolt long taim bilong bungim o longpela bilong en o longpela bilong en i save mekim wok bilong en i kamap bikpela na i save kamapim ol plet warping na ol lus siling pes; flange sil i no wok gut: inlet na autlet flange gasket krismas, o bolt i kamap lus (ol senis i hat na kol i mekim na ol bolt i kamap bikpela na kontrak). Shutdown lik i save kamap moa yet long stat bilong stat-ap na pasim hat eksenja, na restoresen bilong ol nomol wok kondisen i posibol; intanel lik i save kamap moa yet long ol gasket i bagarap na plet korosen na hul i bagarap;Ol bikpela as bilong lik bilong ausait em i no stret, ekstrusen, bagarap bilong siling gasket, korosen na defomesen bilong plet, na i no taitim i go long mak bilong klem i stap long mak; bikpela as bilong lik namel long aipas plet na plet bilong klem em olsem, ol strongpela samting i sutim ai bilong aipas.
Solusen: Imejensi tritmen: daunim kwiktaim presa bilong sistem, pasim hat eksenja inlet na autlet valv (klostu long hot sait pastaim, bihain kol sait), rausim wara na pasim; senisim ol sil: rausim hat eksenja, rausim olgeta gasket,Sekim plet siling grov bilong ol skrap (sapos i gat, smut wantaim gutpela sandpepa); replace the sealing gasket with the same type (it is recommended to use heat-resistant and corrosion-resistant materials, such as nitrile rubber for oil and EPDM for water/weak alkali);Reassemble and tighten: stack the plates in the original order (plate numbers must be aligned to avoid reverse installation), and tighten the bolts evenly (tighten diagonally in steps to avoid presa bilong ples i winim mak);
Difrens bitwin ol inlet mo aotlet presa gej blong hit eksenja i bitim mak blong disaen (eksampol, disaen presa i drop long 0.1mPa, be presa blong presa we i tru i drop i go long 0.3mPa); presa bilong pam autlet i go antap, tasolhat eksenjainlet flow rate i go daun (pul i ovalod na nois i go antap).
Core reasons:Flow channel blockage: impurities in the fluid (such as sand and rust) are deposited in the plate flow channel, reducing the flow cross-sectional area;Wrong number or type of plates: The actual flow rate far exceeds the design value, or the plate flow channel is too narrow (for example, a small channel plate is used to process a large flow rate fluid);Abnormal fluid viscosity: The fluid temperature is too low (for eksampol, viskositi blong oel i go antap long smol tempereja), o wota i gat wan bigfala amaon blong ol samting we oli saspen (olsem slari), we i mekem se i gat moa resistens blong ron blong wota.
Solusen: Klinim flow senel: Bihain long pasim, rausim hat eksenja na rausim plet flo senel wantaim hai-presa wara gan, o yusim wanpela spesel bal (wantaim wanpela diamita i liklik liklik long wara bilong ron bilong wara) long kliarim bloka; stretim ol opereting paramita: sapos flow rate i bikpela tumas, stretpela daunim pam frikwensi (kontrolim insait long mak bilong ±10% bilong disain flo reit); sapos viskositi blong wota i hae, mekem tempereja blong wota i go insaed i kam antap (olsem blong mekem oel i hot i go long stret ples blong lukluk), o putum wan preheta long inlet.
a:Het saed aotlet tempereja i hae bitim mak blong disaen. Ol bikpela as em: hevi bilong seleksen, hot sait flow reit i bikpela moa long disain veliu, plet i pas o kol sait flo reit i liklik;
b: Kol saed aotlet tempereja i daon tumas. Ol bikpela as em liklik hot sait flo o tempereja i daunbilo long disain veliu, plet bloka, na ol narapela.