Iyini iValvu Yokuvala: Umhlahlandlela Wokuvikela Amapayipi

A vala ivalvuiyisici esibalulekile ezinhlelweni zamapayipi ezenzelwe ukulawula ukugeleza koketshezi noma amagesi. Ngokuvula, ukuvala, noma ukuvimba kancane izindlela, la mavalvu aqinisekisa ukuphepha, alawule ingcindezi, futhi avimbele ukuvuza. Kungakhathaliseki ukuthi kusezindlini zokufaka amanzi, ezinqubweni zezimboni, noma emapayipini kawoyela negesi, amavalvu avaliwe abalulekile ekusebenzeni kahle kohlelo kanye nokuphathwa kwezimo eziphuthumayo.

Izinhlobo Zama-Valve Okuvala

Amavalvu okuvala afika ngemiklamo ehlukahlukene, ngayinye ifanele izinhlelo ezithile. Nazi izinhlobo ezivame kakhulu:

I-Ball Valve

Ivalvu yebhola isebenzisa ibhola elijikelezayo elinebhore ukulawula ukugeleza. Inikeza ukuvala okusheshayo, ukuqina, kanye nokwehla okuncane kwengcindezi. Ilungele izinhlelo zamanzi, igesi, kanye namafutha.

I-Valve yeSango

Amavalvu esango anesango elinomumo wedge eliphakamisayo ukuze livumele ukugeleza. Angcono kakhulu ekulawuleni ukuvala/ukuvula ezindaweni ezisebenzisa imvamisa ephansi, njengemigqa yokuhambisa amanzi.

I-Globe Valve

Amavalvu embulunga aziwa ngokulawula ukugeleza okunembile, asebenzisa indlela yediski nesihlalo. Avame kakhulu ezinhlelweni ze-HVAC nasemapayipini kaphethiloli.

I-Butterfly Valve

Ivalvu encane, elula enediski ejikelezayo. Amavalvu ebhabhathane asebenza kahle kakhulu ezinhlelweni ezinkulu zokuhlanza amanzi kanye nokuvikela umlilo.

Hlola i-Valve

Ivumela ukugeleza ohlangothini olulodwa kuphela, ivimbela ukubuyela emuva kokugeleza kwamanzi. Isetshenziswa ezinhlelweni zendle kanye nezintambo zokukhipha amanzi emaphampini.

Ivalvu Ye-Diaphragm

Isebenzisa i-diaphragm eguquguqukayo ukuhlukanisa ukugeleza. Ilungele uketshezi olubolayo noma oluthambile ekucutshungulweni kwamakhemikhali.

Ivalvu Yenaliti

Yakhelwe ukulawula ukugeleza okunembile nge-plunger efana nenaliti enciphile. Ivame kakhulu ezinhlotsheni zezinsimbi kanye nezinhlelo ze-hydraulic.

I-ESDV (I-Emergency Shutdown Valve)

Ivalvu ekhethekile yokuvala ngokushesha ngesikhathi sezimo eziphuthumayo, evame ukwenziwa ngokuzenzakalelayo. Ibalulekile ezindaweni zokuhlanza uwoyela kanye namapayipi egesi.

Ukusetshenziswa kwama-Valve Okuvala

Ama-valve okuvala asebenza izindima ezahlukahlukene kuzo zonke izimboni:

- Indawo yokuhlala: Hlukanisa amanzi ngesikhathi sokulungiswa (isib. ama-ball valve ngaphansi kwezinki).
- Izimboni: Lawula umusi, amakhemikhali, noma uphethiloli (ama-globe valve, ama-diaphragm valve).
- Uwoyela negesi: Qinisekisa ukuphepha ngama-ESDV ngesikhathi sokuvuza noma ukucindezela okuphezulu.
- Ukuvikelwa KomliloAma-valve e-Butterfly avumela ukulawulwa kokugeleza kwamanzi okusheshayo ezinhlelweni zokufafaza.
- ImithiAmavalvu enaliti agcina ukunemba ekuphatheni uketshezi.

Asebenza Kanjani Ama-Valve Okuvala?

Indlela yokusebenza iyahlukahluka ngohlobo kodwa ilandela isimiso esijwayelekile:

1. UkusebenzaAma-valve asebenza ngesandla (isondo lesandla, i-lever) noma ngokuzenzakalelayo (ama-actuator kagesi/omoya).

2. Ukulawula Ukugeleza:

–Amavalvu Ebhola/Evemvane: Jikelezisa ngo-90° ukuze uvule/uvale.
–Amavalvu Esango/Eglobe: Ukunyakaza okuqondile kuphakamisa/kwehlisa isango noma idiski.
–Ama-valve Okuhlola: Thembela ekucindezelweni kokugeleza ukuze uvule/uvale.

3. Ukuvala: Izivalo eziqinile (irabha, i-PTFE) zivimbela ukuvuza uma zivaliwe.

Ukukhetha iValvu Efanele

Ukukhetha i-valve yokuvala kuncike ezintweni ezifana nalezi:

- Uhlobo Loketshezi: Uketshezi olubolayo ludinga ama-valve e-diaphragm; amagesi afanela ama-valve ebhola.
- Ingcindezi/Izinga lokushisaIzinhlelo zokucindezela okuphezulu zidinga ama-ESDV aqinile noma ama-valve esango.
- Imvamisa YokusetshenziswaAma-valve ebhola ahlala isikhathi eside ezinhlotsheni eziningi zomjikelezo.

Isiphetho

Kusukela kuma-ESDV ezindaweni eziyingozi kuya kuma-ball valve alula emakhaya, ama-valve avaliwe ayinsika yezinhlelo zokulawula uketshezi. Ukuqonda izinhlobo zawo, ukusetshenziswa kwawo, kanye nemishini yawo kuqinisekisa ukusebenza kahle nokuphepha. Ukugcinwa njalo kanye nokukhetha ama-valve ngendlela efanele kuthuthukisa isikhathi eside sesistimu.