Isisekelo seValve

A ivalvuiyidivayisi yokulawula yomugqa woketshezi. Umsebenzi wayo oyisisekelo ukuxhuma noma ukunqamula ukujikeleza kwendandatho yepayipi, ukushintsha indlela yokugeleza kwepayipi, ukulungisa ingcindezi nokugeleza kwepayipi, nokuvikela ukusebenza okuvamile kwepayipi nemishini.

一.Ukuhlukaniswa kwama-valve

Ngokusho kokusetshenziswa kanye nomsebenzi, ingahlukaniswa ibe:

1. I-valve yokuvala: nquma noma uxhume i-medium yepayipi. Njenge: i-valve yesango, i-valve yeglobe, i-valve yebhola, i-valve yebhabhathane, i-valve ye-diaphragm, i-valve yepulaki.

2. I-valve yokuhlola: vimbela i-medium epayipini ukuthi igeleze emuva.

3. I-valve yokusabalalisa: shintsha indlela yokugeleza kwe-medium, hambisa, hlukanisa noma uhlanganise i-medium. Njenge-valve yokusabalalisa, izithiyo zomusi, kanye nama-valve ebhola anezindlela ezintathu.

4. I-valve yokulawula: lungisa ingcindezi kanye nokugeleza kwe-medium. Njenge-valve yokunciphisa ingcindezi, i-valve yokulawula, i-valve ye-throttle.

5. I-valve yokuphepha: ivimbela ingcindezi ephakathi kudivayisi ukuthi idlule inani elibekiwe, futhi ihlinzeke ngokuvikelwa kokuphepha kokucindezela ngokweqile.

二Amapharamitha ayisisekelo e-ivalvu

1. Ububanzi obujwayelekile bevalvu (DN).

2. Ukucindezela okujwayelekile kwevalvu (PN).

3. Isilinganiso sokucindezela kanye nokushisa kwevalvu: Lapho izinga lokushisa lokusebenza levalvu lidlula izinga lokushisa elibhekiselwe kulo lokucindezela okujwayelekile, ingcindezi yalo yokusebenza ephezulu kumele incishiswe ngokufanele.

4. Ukuguqulwa kweyunithi yokucindezela kwevalvu:

5. Indlela esebenzayo ye-ivalvu:

Ama-valve ezimboni asetshenziswa kuphethiloli, embonini yamakhemikhali, kwezensimbi, kumandla kagesi, kumandla enuzi nakwezinye izimboni. Izinto ezidlulayo zifaka phakathi amagesi (umoya, umusi, i-ammonia, igesi yamalahle, igesi kaphethiloli, igesi yemvelo, njll.); uketshezi (amanzi, i-ammonia ewuketshezi, uwoyela, ama-asidi, ama-alkali, njll.). Amanye awo angcolisa njengezibhamu zomshini, kanti amanye anemisebe eminingi.