Amagama athi 'flushing' kanye 'nokucima' often seem to be confused or misused when discussing seal support schemes for >amaphampu aludaka. Njengoba imiqondo ye-cartridge ye-mechanical seal kanye ne-cartridge ye-seal egcwele ihluke kancane, ngizoxoxa ngayo ngokwehlukana futhi ngokulandelana.

Mechanical Seals

Uhlelo oluyisisekelo lwe-mechanical seal flushing lulula kakhulu. Kudinga ukuthi kufakwe uketshezi olucacile/ oluhlanzekile (imvamisa amanzi) esikhaleni esiphakathi kophawu lwangempela kanye nomkhawulo wokuphuma eceleni kwe-impeller. Uketshezi olushaywayo lwethulwa ngengcindezi ephakeme kunomfutho wokumpompa, ngaleyo ndlela kuqinisekisa ukuphuma okuhle/ukugudluzwa kophawu lwemishini kanye nendawo yokusebenza ehlanzekile.
I-Flushing ichazwa ngokuthi "uketshezi olungeniswa emgodini wophawu ohlangothini lwe-fluid yenqubo, eduze nobuso be-seal, futhi ngokuvamile lusetshenziselwa ukupholisa nokugcobisa ubuso bophawu.

When flushing is required, the >umhlinzeki wepompo ye-slurry incoma ukuhlelwa kwepayipi elivaliwe le-API Option 32 njengoba lifaneleka kakhulu izinsiza eziqukethe izinto eziqinile noma ukungcola okungase kulimaze ubuso bophawu uma iphinda ijikeleziswa endaweni eshaywayo.
Uketshezi oluhlanzekile olucacile olunikezwa umthombo wangaphandle luvame ukusetshenziswa olulethwa endaweni eyinhloko yokuvala ngasohlangothini oluwuketshezi lwenqubo yokuvala. Ngokusebenzisa i-gap throat bushing, ibhokisi lokugxusha lingacindezelwa emuva libe yingcindezi ephakeme, kuqinisekiswe ukuthi uketshezi olushaywayo aluphanyi ebusweni bophawu.

I-Slurry Pump

Uhlelo lokucisha, njengoba negama libonisa, lwenzelwe ukucisha noma ukupholisa uphawu. Ivamise ukusetshenziswa uma kulindeleke izikhathi ezimfishane zomile. Njengoba kubonisiwe ngezansi, uketshezi lwethulwa endaweni ephakathi kobuso bophawu kanye nendawo ephumayo eseduze eseduze kwephampu.
Kuvame ukusetshenziswa uma kulindeleke isikhathi esifushane sokugijima okomile. Uketshezi lwethulwa endaweni ephakathi kwengemuva lobuso be-seal kanye ne-outlet elingana kahle ohlangothini lokushayela lwephampu e-slurry.

Ukucisha kuchazwa ngokuthi "ukwethulwa koketshezi olumaphakathi (ngokuvamile amanzi noma isitimu) ohlangothini lomkhathi wophawu ukuze kuvinjelwe ukwakheka kwezinto eziqinile ezingase ziphazamise ukunyakaza noma zisetshenziselwe ezinye izinjongo.
Amanye ama-quench seal ahlelelwe ukuthi amiselele umkhawulo wendawo obambayo oqinile ufake uphawu lwesibili kanye nendawo yokukhipha ephezulu engafakwa ngamapayipi ukuze ibambe uketshezi lokucisha olusetshenzisiwe bese luyikhipha ekuhlanganiseni okuzungezayo. Nokho isimiso siyefana, sizama ukupholisa uphawu kunokuba silushaye nganoma iyiphi indlela.

Isexwayiso: Iphutha elivamile ukucindezela ibhokisi ngokweqile futhi kulimaze uphawu olubizayo lwemishini.

I-Slurry Pump

Ukupakisha uphawu lwebhokisi

The main objective of all flush water programmes is to prevent contamination of the seals by pumped water.The flush water programme for boxes is therefore very similar to the flush water programme for mechanically sealed boxes. However there are still some obvious mechanical differences.  The most notable difference is the addition of a seal (packing) between the inlet and outlet limits. This minimises the amount of flushing fluid consumed.

Ngokombono wokusebenza ibhokisi lokugxusha lihlukile njengoba lidinga ukuvuza okuthile ukuze kuqinisekiswe ukugcotshwa nokuvikela ukwakheka kokushisa. Ibhokisi lophawu lomshini kufanele lingavuzi.
Umthetho wesithupha wokusetha umfutho wamanzi uyafana uma usebenzisa ibhokisi lokupakisha, noma ngabe uguquguquka. Ingcindezi yokuvala iphampu yodaka kanye no-10% noma kanye no-20 psi, kuye ngokuthi yikuphi okukhulu. Nokho, izinga lokugeleza lisethwe ngokuhlukile.

Ngeshejuli evamile yokuguquguquka, ukugeleza kuvame ukulungiswa ngokucindezela amaphakethe kuze kube yilapho amaconsi ambalwa amanzi ebonwa evuza ezimpahleni ezisohlangothini lwedrayivu. Esimisweni sokucisha izinga lokugeleza lisethwa ngokulungisa i-valve yokungena, kuyilapho i-valve isetshenziswa ohlangothini lwe-exhaust ukuze kugcinwe ukucindezela okulungile kwethangi lophawu. Uma amanzi aphuma ebhokisini lophawu eshisa kakhulu, izinga lokugeleza liyakhuphuka kuze kube yilapho amanzi ephuma epholisa, kuyilapho egcina ukucindezela kwebhokisi lophawu olufanele.

I hope this short blog has helped to clear up some of the confusion about the seal flush programme. Please always refer to the pump manual for specific details. If there are still questions, welcome to >Xhumana nathi namuhla.