1. Iyini i-valve uvemvane womoya?
I-valve uvemvane womoya ivalvu yokujika kwekota esetshenziselwa ukulawula noma ukuhlukanisa ukugeleza koketshezi epayipini. Iqukethe idiski eyindilinga (evame ukubizwa ngokuthi "idiski") efakwe esiqwini, ezungeza ngaphakathi komzimba wevalvu. "I-Pneumatic" ibhekisela kumshini wokuvula, esebenzisa umoya ocindezelwe ukuze isebenze ivalvu, evumela isilawuli kude noma esizenzakalelayo.
I-valve uvemvane womoya ingahlukaniswa izingxenye ezimbili ezibalulekile: i-actuator yomoya kanye nevalve uvemvane.
· Umzimba wevalve uvemvane: Uhlanganisa umzimba wevalvu, idiski (idiski), isiqu, kanye nesihlalo. I-disc izungeza isiqu ukuze ivule futhi ivale i-valve.
· I-activator ye-pneumatic: Isebenzisa umoya ocindezelwe njengomthombo wamandla, ishayela i-piston noma i-vane ukuze ikhiqize ukunyakaza okuqondile noma okujikelezayo.
Izingxenye Ezibalulekile
*I-Butterfly Valve:
- I-Valve Body: Indlu ehlala i-disc futhi ixhumeke epayipini.
- Idiski (idiski): Ipuleti eliyisicaba noma eliphakanyiswe kancane elilawula ukugeleza. Uma ibanjwe ngokuhambisana nesiqondiso sokugeleza, i-valve iyavuleka; uma ibanjwe perpendicular, iyavala.
- Isiqu: Induku exhunywe kudiski edlulisa amandla okujikeleza asuka ku-actuator.
- Izimpawu nezihlalo: Qinisekisa ukuvala okuqinile futhi uvimbele ukuvuza.
* I-Actuator
- I-actuator ye-pneumatic: Imvamisa i-piston noma uhlobo lwe-diaphragm, iguqula umfutho womoya ube ukunyakaza kwemishini. Kungaba ukwenza kabili (ukucindezela komoya kokubili kokuvula nokuvala) noma ukwenza okukodwa (umoya ohlangothini olulodwa, intwasahlobo yokubuyisela).
2. Isimiso Sokusebenza
Ukusebenza kwe-valve uvemvane womoya empeleni kuyinqubo eboshelwe "yokwenziwa komoya ocindezelweyo."→ukusebenza kwe-actuator→i-disc rotation ukuze ulawule ukugeleza." Kalula nje, amandla omoya (umoya ocindezelwe) aguqulwa abe ukunyakaza okujikelezayo ukuze kumiswe idiski.
2.1. Inqubo yokwenza isenzo:
- Umoya ocindezelwe ovela emthonjeni wangaphandle (njenge-compressor noma isistimu yokulawula) unikezwa ku-actuator yomoya.
- Ku-actuator esebenza kabili, umoya ungena embobeni eyodwa ukuze uzungezise isiqu se-valve ngokwewashi (okungukuthi, ukuvula i-valve), bese ungena kwesinye imbobo ukuze usijikelezise ngokuphambene newashi. Lokhu kukhiqiza ukunyakaza okuqondile ku-piston noma i-diaphragm, eguqulwa ibe ukuzungezisa okungu-90-degree ngomshini we-rack-and-pinion noma we-Scotch-joke.
- Ku-actuator esebenza kanye, umfutho womoya uphusha ipiston esiphethwini ukuze uvule ivalvu, futhi ukudedela umoya kuvumela isiphethu ukuthi siyivale ngokuzenzakalelayo (idizayini engasebenzi kahle).
2.2. Ukusebenza kweValve:
- Njengoba i-actuator izungeza isiqu se-valve, i-disc izungeza ngaphakathi komzimba wevalvu.
- Isikhundla Esivulekile: I-disc ihambisana nesiqondiso sokugeleza, inciphisa ukumelana futhi ivumele ukugeleza okugcwele epayipini. - Isikhundla esivaliwe: I-disc ijikeleza ama-degree angu-90, i-perpendicular to flow, ivimbe i-passage futhi ivalwe ngokumelene nesihlalo.
- Indawo emaphakathi inganyakazisa ukugeleza, nakuba ama-valve ovemvane efaneleka kakhulu isevisi evuliwe kunokuqondiswa okunembile ngenxa yezici zawo zokugeleza ezingaqondile.
2.3. Ukulawula kanye nempendulo:
- I-actuator ivamise ukubhangqwa nevalvu ye-solenoid noma isihleli sokulawula okunembile ngamasignali kagesi.
- Inzwa ingase inikeze impendulo yendawo yevalvu ukuze kuqinisekiswe ukusebenza okuthembekile kumasistimu azenzakalelayo.
3. Ukwenza Okukodwa kanye Nokulingisa Kabili
3.1 I-Actuator Esebenza Kabili (Akukho Mbuyiselo Yasentwasahlobo)
I-actuator inamagumbi amabili episton aphikisanayo. Umoya ocindezelwe ulawulwa i-valve ye-solenoid, eshintshana phakathi kwamakamelo "okuvula" kanye "nokuvala":
Lapho umoya ocindezelwe ungena ekamelweni "elivulekayo", uphusha ipiston, okubangela ukuthi isiqu se-valve sijikeleze ngokwewashi (noma ngokuphambene newashi, kuye ngomklamo), okubuye kuzungezisa idiski ukuze uvule ipayipi.
Lapho umoya ocindezelwe ungena ekamelweni "elivalayo", uphushela ipiston kwelinye icala, okubangele ukuthi isiqu se-valve sizungezise idiski ngokuphambene newashi, ivale ipayipi. Izici: Uma umoya ocindezelweyo ulahlekile, i-disc ihlala endaweni yayo yamanje ("i-fail-safe").
3.2 I-Actoring-Acting single (ene-Spring Return)
I-actuator inegumbi elilodwa lokungenisa umoya, elinesiphethu esibuya ngakolunye uhlangothi:
Lapho umoya ugeleza: Umoya ocindezelwe ungena ekamelweni lokungena, unqoba amandla asentwasahlobo ukusunduza i-piston, okwenza i-disc ijikeleze endaweni "evulekile" noma "evaliwe";
Lapho umoya ulahlekile: Amandla asentwasahlobo ayakhululwa, aphushela i-piston emuva, okwenza i-disc ibuyele endaweni ehleliwe "indawo yokuphepha" (imvamisa "ivaliwe", kodwa futhi ingaklanywa ukuthi "ivuleke").
Izici: Inomsebenzi "wehluleka-ukuphepha" futhi ifanele ukusetshenziswa ezinhlelweni ezidinga izinyathelo zokuphepha, njengalezo ezibandakanya imidiya evutha umlilo, eqhumayo, kanye nobuthi.
4. Izinzuzo
Amavalvu ovemvane womoya afanele ukusebenza ngokushesha, ngokuvamile adinga ukujika kwekota kuphela, okuwenza afanelekele izimboni ezifana nokuhlanza amanzi, i-HVAC, nokucubungula amakhemikhali.
- Isikhathi sokuphendula esisheshayo ngenxa ye-actuation ye-pneumatic.
- Izindleko eziphansi kanye nokulungiswa okulula uma kuqhathaniswa nezinye izindlela zikagesi noma ezisebenza ngogesi.
- Compact futhi engasindi design.