Iyini i-Knife Gate Valve

Ezinhlelweni zokulawula uketshezi lwezimboni, ama-valve ayizingxenye eziyinhloko ezilawula ukugeleza kwemidiya futhi ziqinisekise ukuqina kwephayiphi. Njengenguqulo ebalulekile yama-valve esango akhethekile,I-Knife Gate Valveiklanyelwe ngqo imithombo enzima efana nodaka, izinto eziqinile, kanye noketshezi olune-fiber. Isetshenziswa kabanzi ekuvikelweni kwemvelo, ezimayini, kumakhemikhali, ekukhiqizeni ugesi, nakwezinye izimboni. Ochwepheshe abaningi bavame ukudidanisa ama-valve esango lommese nama-valve esango ajwayelekile, kodwa ahluka kakhulu ngesakhiwo, ukusebenza, kanye nokusetshenziswa. Lesi sihloko sinikeza umbono ophelele wokuthi iyini i-valve yesango lommese, izingxenye zayo ezibalulekile, ukuhlukaniswa, izinzuzo nezingozi, izimo zokusebenza ezifanele, kanye nomehluko ocacile kuma-valve esango avamile—okukusiza ukuthi wenze izinqumo ezinolwazi ngamaphrojekthi akho.

1. Iyini iValvu Yesango Lommese?

Ivalvu yesango lommese—eyaziwa nangokuthi isango lommese, ivalvu yommese, noma ivalvu yesango elinodaka—iyivalvu yokuvala eqonde ngqo, eqhutshwa ngesandla, ngomoya, noma ngogesi. Iyinhlobo ekhethekile yamavalvu esango. Isimiso sayo sokusebenza silula: isango elinomumo wommese lihamba liqonde phezulu, liqonde ngqo ohlangothini lokugeleza. Unqenqema olucijile oluphansi kwesango lusika imicu, ama-floc, amaqhubu aqinile, kanye nemidiya enamathelayo ngaphakathi kwepayipi, ifinyelela isikhundla esivulekile noma esivaliwe ngokuphelele.

Uma kuqhathaniswa namavalvu avamile, isici esivelele kakhulu sevalvu yesango lommese ukwakheka kwayo kwesango elincane kakhulu, elifana nommese. Umzimba wevalvu unendlela yokugeleza eqondile, engenazithiyo. Uma ivuliwe ngokugcwele, isango lihoxa ngokuphelele endleleni yokugeleza, okwenza kube cishe akukho ukumelana nokugeleza. Lo mklamo uxazulula izinkinga ezivamile ezitholakala kumavalvu avamile lapho kuphathwa imidiya engcolile, egcwele izinhlayiya—njengokuvinjelwa, ukuvalwa okungekuhle, nokunamathela. Ezimweni ezinzima, ivalvu yesango lommese iyisisombululo esisetshenziswa kakhulu sokuvala imidiya.

2. Izingxenye Eziyinhloko Nemisebenzi

Ivalvu yesango lommese inesakhiwo esincane nesihlanganisiwe kakhulu. Ingxenye ngayinye idlala indima ecacile ekuqinisekiseni ukusebenza kokuvala, ukuzinza kokusebenza, kanye nokuphila kwenkonzo.

2.1 Umzimba Wevalvu

Isakhiwo esiyinhloko esithwala umthwalo, esivame ukwenziwa ngezinto ezifana nensimbi ephothiwe, insimbi yekhabhoni, noma insimbi engagqwali. Umzila wokugeleza oqondile wangaphakathi awunazo izimbobo noma izindawo ezifile, okuvimbela ukwakheka kwemfucumfucu nokunamathela. Umzimba umelana nengcindezi yemidiya, uxhumeka kumapayipi, futhi unikeza ukwesekwa kwesango nezivalo.

2.2 Isango Lommese

Lena yingxenye ehluke kakhulu yevalvu yesango lommese—isici esilihlukanisa nawo wonke amavalvu esango ajwayelekile. Isango lincane kodwa liqinile, linomphetho obukhali ogobile. Ubuso balo bupholishiwe futhi buqiniswe ukuze bumelane nokuguguleka nokuklwebheka. Ngesikhathi sokuvula nokuvala, i-blade inqamula i-pulp, udaka, i-slag, imicu, nokunye ukungcola, ivimbela ukugoqwa noma ukunqwabelana, iqinisekisa ukuvalwa okuqinile nokusebenza kahle.

2.3 Izingxenye Zokuvala

Kufaka phakathi izivalo zezihlalo kanye nezivalo zokupakisha, ezihlukaniswe ngezinhlobo zokuvala okuthambile kanye nezivalo zensimbi. Izivalo ezithambile zisebenzisa irabha noma i-polyurethane ukuze ziqine kahle futhi zingavuzi lutho, zifanelekela ukuhlanza okuphansi, okunomfutho ophansi noma okune-slurry media. Izivalo zensimbi zisebenzisa insimbi engagqwali noma i-alloys ukuze zivikele ukushisa okuphezulu, ukucindezela okuphezulu, kanye nokumelana nokuguguleka okuphezulu. Izivalo zokupakisha ezizungeze isiqu zivimbela ukuvuza kwangaphandle.

2.4 Isiqu

Yenziwe ngensimbi engagqwali enamandla amakhulu enamandla okubamba kahle, ukumelana nokugqwala, kanye nezakhiwo zokulwa nokugoba. Ingxenye engenhla ixhumeka ku-actuator, kanti ingxenye engezansi inamathela esangweni. Idlulisela amandla okushayela ngesandla, emoyeni, noma kagesi esangweni ukuze kulawulwe kahle ukuphakamisa.

2.5 I-Actuator

Umthombo wamandla. Izinhlobo ezivamile: ngesandla (elula, eshibhile, yobubanzi obuncane kanye nokusebenza okungajwayelekile), umoya (ukuvula/ukuvala okusheshayo, okuvikela ukuqhuma, ofanele izindawo zamakhemikhali nezothuli), kagesi (isilawuli kude esenziwa ngokuzenzakalela samapayipi amakhulu kanye nokusebenza okuvamile), kanye ne-hydraulic (amandla aphezulu obubanzi obukhulu kanye nezimo zomsebenzi osindayo).

2.6 Indlala Nesibiyeli

Indlala icindezela uphawu lokupakisha ukuze kuvinjelwe ukuvuza. Ibhulakhethi livikela i-actuator kanye nesiqu, liqinisekisa ukunyakaza okuqondile ngaphandle kokuphambuka noma ukunamathela, okuthuthukisa ukuzinza kokusebenza.

3. Ukuhlukaniswa Okuningiliziwe Kwama-Knife Gate Valve

Amavalvu esango lommese eza ngezinhlobo eziningi, ikakhulukazi ahlukaniswe ngomklamo wokuvala, indlela yokusebenza, kanye nesitayela sokwakha.

3.1 Ngohlobo Lokuvala

I-Soft-Seal Knife Gate Valve: Isebenzisa irabha, i-polyurethane, noma i-PTFE ukuze ivumelane kahle futhi ingabi nalutho ukuvuza. Isilinganiso sokucindezela ≤PN16, imikhawulo yokushisa emaphakathi. Kungcono kakhulu ekusetshenzisweni kwezinga lokushisa eliphansi, okucindezela okuphansi njengendle, udaka, kanye nodaka oluncane oluqothulayo oluqukethe izinto eziqinile. Kubiza kahle futhi kusetshenziswa kakhulu.

I-Valve Yesango Lommese Ohlala Ngensimbi: Isango nesihlalo kuyizinsimbi ze-alloy ezihlanganiswe kahle. Imelana namazinga okushisa aphezulu (kufika ku-400°C+), ukucindezela okuphezulu, kanye nokuklwebheka okukhulu. Ukuvala akuqinile kangako kunezivalo ezithambile. Kulungele ama-slurry ashisayo, impuphu yamalahle, kanye namanzi omlotha ashisa kakhulu ezimweni ezinzima.

I-Polyurethane Lined Knife Gate Valve:Isiteshi sokugeleza kwevalvu yesango lommese simbozwe ngezinto ze-polyurethane, ezingagugi kakhulu kunezivalo zesango lommese ezivamile futhi zifaneleka kakhulu ezintweni ezifana nodaka kanye ne-cinder.

3.2 Ngohlobo Lokusebenza

Ngesandla,umoya, izinhlobo zikagesi, ze-hydraulic, kanye nezisetshenziswa yigiya ngezikhathi ezithile, kuye ngokuthi imvamisa yokusebenza isebenza kangaki, usayizi we-valve, kanye nezidingo zokwenza izinto ngokuzenzakalelayo.

3.3 Ngesitayela Sokwakha

I-Wafer-Type Knife Gate Valve: Incane, ilula, kulula ukuyifaka. Iboshwe phakathi kwama-flange, igcina isikhala. Ifanele amapayipi amancane kuya kwaphakathi.

I-Lug-Type (Flanged) Knife Gate Valve: Iziphetho ezigoqekile ziboshwe epayipini. Isakhiwo esiqinile, amandla aphezulu okucindezela, ukumelana nokudlidliza. Ifanelekela ububanzi obukhulu, ukucindezela okuphezulu, kanye nemigqa yezimboni esindayo.

Isiqu Esikhuphukayo vs. Isiqu Esingakhuphukiyo: Isiqu esiphakamayo sivumela isibonakaliso sendawo ebonakalayo futhi simelana nokuqongelela kwemfucumfucu; isiqu esingaphakamayo sincane kakhulu ezindaweni zokufakwa eziqinile.

4. Izinzuzo kanye nokungalungi

4.1 Izinzuzo Eziyinhloko

Ukuzivumelanisa nezimo okuphezulu kwemidiya kanye nokumelana nokuvaleka: I-blade yokusika iphatha kalula imicu, ama-floc, izinto eziqinile, kanye nama-slurries aqinile—ixazulula izinkinga zokuminyana kanye nokuvala okubi kwama-valve avamile.

Ukumelana nokugeleza okuphansi, okusebenzisa kahle amandla: Ivuliwe ngokuphelele, isango liyahoxa ngokuphelele, lishiya indlela eqondile cishe ingenakho ukumelana futhi ingcindezi ayinciphi. Ilungele amapayipi ageleza kakhulu.

Isakhiwo esilula, ukulungiswa okulula: Ilula, izingxenye ezimbalwa, ziyashesha ukuhlakazwa, izinga lokwehluleka eliphansi, kunciphisa izindleko zokusebenza.

Ukusebenza okusheshayo, ububanzi besicelo: Ukushaywa okufushane, impendulo esheshayo. Ngezinto ezahlukene kanye nama-actuator, ifanela izimo ezijwayelekile, zokushisa okuphezulu, zokucindezela okuphansi, zokucindezela okuphakathi, zokuhuzuka, kanye nezigqwala.

Kuqiza kahle: Ngosayizi ofanayo kanye nesilinganiso sokucindezela, amavalvu esango lommese abiza kancane kakhulu kunamavalvu esango noma eglobhu ajwayelekile, okwenza abe usizo emigqeni emikhulu yezimboni.

4.2 Ukungalungi

Akukho kulawulwa kokugeleza: Ivalvu isebenza kuphela ivulekile noma ivaliwe ngokuphelele. Ayikwazi ukushintsha ukugeleza noma ingcindezi.

Imikhawulo yokuvala ezindaweni ezihlanzekile ezinomfutho ophezulu: Uma kuqhathaniswa nama-valve esango eliqondile, ukunemba kokuvala kuphansi ezinsizeni ezihlanzekile nezinomfutho ophezulu. Akukhuthazwa ukusetshenziswa koketshezi oluhlanzekile olunengcindezi ephezulu kakhulu.

Ukuguga ngenxa yokugibela ibhayisikili njalo: I-blade esika izinto eziqinile iguga kancane kancane. Ngemva kokusetshenziswa isikhathi eside kakhulu, izivalo noma isango kungadinga ukushintshwa noma ukulungiswa.

5. Izicelo Ezijwayelekile kanye Nezimboni

Amavalvu esango lommese asebenza kahle kakhulu emisebenzini yokuvala izinto eziqinile, ezinemicu, eziqinile, nezingcolile. Gwema ukuwasebenzisa ukuze uhlanze uketshezi noma ulawule ukunemba. Izinhlelo zokusebenza eziyinhloko zifaka:

5.1 Ukwelashwa Kwamanzi Angcolile (Okuvame Kakhulu)

Ilungele indle kamasipala, ukungcola kwezimboni, udaka, kanye nemigqa yodaka lwezinto eziphilayo. Isika ngempumelelo ama-floc kanye nezinto eziqinile, ivimbela ukuvaleka. Isetshenziswa kabanzi emipayipini yokususa udaka, yokungena, kanye neyokukhipha udaka.

5.2 Ukumbiwa Kwezimayini Nokusetshenzwa Kwensimbi

Isetshenziselwa udaka lwensimbi, ukususwa kwezinsimbi, umlotha wensimbi, impuphu yamalahle, kanye nodaka lwe-slag. Izinhlobo ezifakwe insimbi zimelana nokuguguleka okuphezulu kanye nokugcwala okuphezulu kwezinto eziqinile, ezifanele izimo zokumba ezisindayo.

5.3 I-Pulp nePhepha, Indwangu

Iphatha ngokukhethekile ukungcola kwephepha kanye ne-fiber yendwangu. I-blade inquma imicu, ixazulula izinkinga zokugoqa kanye nokuvala okubi kwama-valve avamile. I-valve ekhethekile yalezi zimboni.

5.4 Ukukhiqizwa Kwamakhemikhali Namandla

Amakhemikhali: ama-slurry amakhemikhali aqinile kanye nemidiya ye-slurry ebolile kancane. Amandla: amanzi omlotha, ukuthuthwa kwempuphu yamalahle, kanye nemigqa ye-slurry ye-FGD (flue gas desulfurization). Ukushisa okuphezulu kanye nokumelana nokuguguleka kuqinisekisa ukusebenza okuthembekile.

5.5 Izinto Zokwakha Nokudla

Udaka lukasimende, udaka lukalayimu, kanye nezinye izinto zokwakha; kanye nodaka lokudla oluqinile kanye nokuthuthwa kwezinhlayiya. Izinguqulo zezinto ezihlanzekile ziyahlangabezana nezidingo zemboni yokudla.

Akufaneleki: Amanzi ahlanzekile, igesi, uwoyela, noma ezinye izinto ezingenazinhlayiya ezidinga ukuvalwa ngokunemba; ukusetshenziswa kokucindezela okuphezulu kakhulu noma kokushisa okuphezulu kakhulu; noma yimuphi umugqa odinga ukugeleza okuqhubekayo noma ukulawulwa kokucindezela.

6. Umehluko Obalulekile Phakathi Kwevalvu Yesango Lommese Nevalvu Yesango Elijwayelekile Le-Wedge

Nakuba zombili zingamalungu omndeni wamavalvu esango futhi zisebenzisa umklamo wesango lokuphakamisa, izakhiwo zazo, ukusebenza kwazo, kanye nezinhlelo zokusebenza zihluka kakhulu.

7. Isiphetho

Kalula nje, ivalvu yesango lommese iyivalvu ekhethekile yokuvala eyenzelwe izinto ezilukhuni, ezingcolile, nezinolaka. Isenzo sayo sokusika esifana nommese yinzuzo eyinhloko, ukuxazulula izinkinga zokuvaleka kanye nokwehluleka ezihlupha amavalvu esango avamile lapho kuphathwa izinto ezimanzi, izinto eziqinile, nezinto ezinemicu. Ivalvu yesango lommese inesakhiwo esilula, ukusebenza okusheshayo, kanye nokuzivumelanisa nezimo okubanzi. Nakuba ingakwazi ukulawula ukugeleza futhi ukuvalwa kwayo ngokunemba ezindaweni ezihlanzekile kulinganiselwe, ihlala ingathathelwa indawo ekuphathweni kwamanzi amdaka, ezimayini, ephepheni, kumakhemikhali, nakwezinye izimboni lapho izinto eziqinile ziqukethe izinto eziqinile, imicu, noma izingxenye eziqinile.

Ukukhetha kwangempela: khetha amavalvu esango elijwayelekile le-wedge ukuze kusetshenziswe kahle imithombo ehlanzekile. Uma ufuna udaka, udaka, izinhlayiya, imicu, nezinye izimo ezinzima nezivame ukuvaleka, kufanele ukhethe ivalvu yesango lommese ukuqinisekisa ukusebenza kwephayiphi isikhathi eside nokwethembekile.