Ukuhlaziywa okupheleleko kwemigomo yokukhetha kanye nobujamo bokusebenza obusebenzako bamavalvu we-Butterfly

I. Imigomo yokukhethaAmavalvu we-Butterfly

1. Ukukhetha umhlobo wesakhiwo

Ivalvu ye-butterfly ephakathi (umhlobo welayini ephakathi):I-valve stem kanye ne-butterfly disc ziyalingana phakathi, ngesakhiwo esilula neendleko eziphasi. Ukuvalwa kuthembele ekuvalweni okuthambileko kwerabha. Ilungele iminyanya enamazinga womtjhiso ajayelekileko nomfutho begodu ngaphandle kweemfuneko eziqinileko.

Ivalvu yevivane eyodwa engakajayeleki:Isiqu sevalvu sisuka phakathi kwe-butterfly disc, ukwehlisa ukutjhayisana hlangana neendawo zokuvala ngesikhathi sokusebenza begodu kwandisa ipilo yokusebenza. Ilungele ukusetjenziswa okuphakathi nendawo nokugandeleleka okuphasi okutlhoga ukuvulwa nokuvalwa njalo.

Ivalvu yevithamini ephindwe kabili (ivalvu yevithamini esebenza kuhle khulu):Isiqu sevalvu sihlukaniswe kokubili kudiski yevivane kanye nesikhungo sendawo yokuvala, okwenza bona kusebenze ngaphandle kokutjhayisana. Ivamise ukuba nensimbi nofana ukuvala okuhlangeneko. Ilungele amazinga womtjhiso aphezulu, umtjhini omkhulu, ovuthako, nofana imidiya eneenhlayiya.

Ivalvu yamavithamini amathathu:Ukuhlanganisa ukuhlukahluka okubili nge-beveled conical sealing pair, ifinyelela ukungqubuzana okungekho nokuvuza okungekho, ngokujamelana nokutjhisa okuphezulu nokugandeleleka okuphezulu. Ilungele ubujamo bokusebenza obubudisi (isib., umtjhiso, amafutha/igesi, iindaba ezinezinga lokutjhisa eliphezulu).

2. Ukukhetha imodi yokutjhayela

Imanyuwali:ububanzi obuncani (DN≤200), ukugandeleleka okuphasi, nofana ubujamo bokusebenza okungakavami.

I-Worm gear drive:Ilungele ukusetjenziswa okuphakathi nendawo ukuya kobukhulu okutlhoga ukusebenza ngaphandle komzamo nofana ukulawulwa kokugeleza.

I-Pneumatic/Electric:Ukulawula kude, amahlelo wokusebenza ngokuzenzakalelako, nofana iimfuneko zokuvala msinyana (isib., amahlelo we-alamu yomlilo, ukuvala kwesikhathi esiphuthumako).

3. Iinsetjenziswa zokuvala kanye neensetjenziswa

Ukuvala okuthambileko (irabha, i-PTFE, njll.): ukuvala okuhle, kodwana ukujamelana nokutjhisa nokugandeleleka okulinganiselweko (ngokuvamileko ≤120°C, PN≤1.6MPa). Ilungele amanzi, umoya kanye nemidiya yokugqwala ebuthakathaka.

Iimvalo zensimbi (insimbi engagqwali, i-carbide esemente): Ukujamelana namazinga womtjhiso aphezulu (ukufikela ku-600°C), ukugandeleleka okuphezulu, nokujamelana nokuguga nokugqwala, kodwana ukusebenza kokuvala kuphasi kancani kuneemvalo ezithambileko. Ilungele iindaba ezinezinga eliphezulu lokutjhisa kwensimbi, iintjalo zamandla, kanye namakhemikhali we-petroleum.

Iinsetjenziswa zomzimba: Insimbi ephothiweko, insimbi yekhabhoni, insimbi engagqwali, insimbi ye-alloy, nofana ipulasitiki/irabha ngokuya ngokugqwala kwendawo.

4. Izinga lokugandeleleka kanye namazinga womtjhiso:

Amavalvu we-butterfly avalwe ngokuthambileko avamise ukusetjenziselwa i-PN10~PN16, ngamazinga womtjhiso ≤120°C. Amavalvu we-butterfly avaliwe ngensimbi amathathu angafinyelela ngaphezu kwe-PN100, ngamazinga womtjhiso ≥600°C.

5. Iimpawu zethrafikhi

Lokha nakutlhogeka ukulawulwa kokugeleza, khetha ivalvu ye-butterfly eneemfanelo zokugeleza ezilinganako nofana ezilinganako (isib., idiski emise oko-V).

6. Isikhala sokufaka kanye nendlela yokugeleza:Ivalvu ye-butterfly inesakhiwo esincani, okwenza bona ilungele amapayipi anendawo encani. Ngokuvamileko, akukho ukuvinjelwa kwendlela yokugeleza, kodwana kumavalvu amathathu we-butterfly, indlela yokugeleza kufanele icaciswe.

II. Iinkhathi ezisebenzako

1. Ukulondolozwa kwamanzi nokuphakelwa kwamanzi neenhlelo zokukhipha amanzi: Ukuphakelwa kwamanzi emadorobheni, amapayipi wokuvikela umlilo, nokuhlanzwa kwendle: kuvamise ukusebenzisa amavalvu we-butterfly we-centerline avaliweko athambileko, abizako begodu anokuvala okuthembekileko. Malungana nokuphuma kwepompo nokulawulwa kokugeleza: khetha igiya le-worm nofana amavalvu we-butterfly wokulawula igezi.

2. Amapayipi we-petrochemical negesi yemvelo: Amavalvu amathathu avaliweko wesimbi akhethelwe ukujamelana nokugandeleleka okukhulu nokukhandela ukuvuza. Iindaba ezibolako (isib., ama-esidi/ama-alkali): Kusetjenziswa amavalvu we-butterfly ane-fluorine nofana amavalvu we-alloy ajamelana nokubola.

. Emaphayiphini womtjhiso (isib., amahlelo weensetjenziswa ezisizako eentjalweni zamandla): amavalvu amathathu we-butterfly avaliwe ngensimbi.

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Irherho lokuhlanza: I-vacuum ekhethekilekoivalvu yevivaneiqinisekisa ukusebenza kokuvala.

III. Isiphetho

I-TWSakusiye umlingani othembekileko wekhwalithi ephezulu kwaphelaamavalvu wevithaminikodwana godu inobungcweti obubanzi bezobuchwepheshe kanye nezisombululo ezifakazelwe ku-amavalvu wesango, amavalvu wokuhlola, kunyeamavalvu wokukhupha umoya. Nanyana ngiziphi iimfuneko zakho zokulawula amanzi, sinikela ngokusekelwa kwevalvu okusezingeni eliphezulu. Ukusebenzisana okungenzeka namkha imibuzo yezobuchwepheshe, sibawa uzizwe ukhululekile ukusithinta nanyana kunini.