Kuhlatiya Tinzuzo Nebubi Betinhlobo Letisihlanu Letivamile Temavalvu 2 .

3. Ivalvu yelibhola

I valve yebhola yavela kusuka ku valve yepulagi. Incenye yayo yekuvula nekuvala iyindingilizi, futsi lendingilizi ijikeleta nga 90° ijikeleta i-axis yesicu sevalve kwentela kufeza inhloso yekuvula nekuvala. I valve yebhola isetjentiswa kakhulu kumaphayiphi kunciphisa, kusabalalisa, kanye nekushintja indlela yekugeleza kwemkhakha. I-valve yebhola leyakhelwe ngekuvulwa lokumise kwe-V nayo inemsebenti lomuhle wekulawula kugeleza.

Ifekthri yevalvu ye-TWS iniketa ivalvu yeluvivane ye-wafer lehleti lecinile YD37A1X3-16Q, ivalvu yeluvivane lephindvwe kabiliD34B1X3-16Q, Ivalvu yeluvivane lephindvwe kabili lene-flanges ngekuya kwe-Ser.13 noma luchungechunge 14, BS5163/F4/F5 /ANSI CL150 ivalvu yesango lehleti ngerabha, i-Y-strainer, ivalvu yekulinganisa, sivimbela kugeleta emuva.

3.1 Tinzuzo:

Inekumelana lokuphansi kakhulu kwekugeleza (cishe 0).

Njengobe ingeke ibambeke ngesikhatsi sekusebenta (ngekungabi khona kwekugcobisa), ingasetjentiswa ngekwetsembeka kumidiya legugile kanye netintfo letimanti letinekubila lokuphansi.

Ingafinyelela kuvalwa lokuphelele ngaphakatsi kwemfutfo lomkhulu kakhulu kanye neluhlu lwekushisa.

Ingafinyelela kuvulwa nekuvalwa lokusheshako. Sikhatsi sekuvula nekuvala saletinye takhiwo ngu 0.05 kuya ku 0.1 imizuzwane kuphela, kucinisekisa kutsi ingasetjentiswa etinhlelo letizenzakalelayo temabhentji ekuhlola. Uma kuvulwa nekuvalwa kwevalve ngekushesha, kute umtselela ngesikhatsi sekusebenta.

Incenye yekuvala leyindingilizi ingabeka ngekuzenzakalela esimeni semncele.

6-- Indlela yekusebenta ivalwe ngekwetsembeka ku-valve.

Q7 Uma ivalve ivulekile ngalokuphelele futsi ivaliwe ngalokuphelele, tindzawo tekuvala te-sphere kanye nesihlalo sevalve tihlukaniswe kusuka ku-medium. Ngako-ke, lokusemkhatsini lokugeleta ngevalve ngesivinini lesikhulu ngeke kubangele kuguguleka kwetindzawo tekuvala.

Inesakhiwo lesincane kanye nesisindvo lesilula. Kungatsatfwa njengesakhiwo sevalve lesinengcondvo kakhulu setinhlelo letisemkhatsini tekushisa lokuphansi.

Leivalvuumtimba uyalingana. Ikakhulukati for welded valve isakhiwo umtimba, kungaba kahle ukumelana ukucindzeteleka kusuka pipeline.

Incenye yekuvala ingamelana nemehluko wekucindzeteleka lokusezingeni leliphakeme ngesikhatsi sekuvala.

I-valve yebhola lenemtimba wevalve loshiselwe ngalokuphelele ingancwatjwa ngco ngaphansi kwemhlabatsi, ivikele tincenye tangekhatsi tevalve ekugcobeni. Imphilo yayo lephakeme yekusebenta ingafika eminyakeni lengemashumi lamatsatfu, kwenta kutsi ibe yivalve lekahle kakhulu yemaphayiphi awoyela kanye negesi yemvelo.

3.2 Tintfo letimbi:

Lokuyinhlokoivalvusitulo kuvala indandatho impahla valve ibhola yi-polytetrafluoroethylene (PTFE). I-inert cishe kutotonkhe tintfo temakhemikhali futsi inetimphawu letiphelele letifana ne friction coefficient lencane, kusebenta lokucinile, kumelana nekuguga, libanga lekushisa lelisebentako lelikhulu, kanye nekusebenta lokuhle kakhulu kwekuvala. Kepha, timphawu letibonakalako te PTFE, kufaka ekhatsi i-coefficient lephakeme kakhulu yekwandzisa, kuzwela kugeleta lokubandzako, kanye nekushisa lokubi, kudzinga kutsi umklamo wesivalo sesihlalo sevalve kumele wentiwe eceleni kwaletimphahla. Ngako-ke, nangabe tintfo tekuvala ticinile, kwetsembeka kwekuvala kuyacekela phansi. Ngetulu kwaloko, lizinga lekumelana nekushisa le PTFE liphansi kakhulu, futsi lingasetjentiswa kuphela emazingeni ekushisa langaphansi kwa 180°C. Uma lizinga lekushisa lidlula leli nani, tintfo tekuvala titawuguga. Uma ucabanga ngekusetjentiswa kwesikhatsi lesidze, kuvame kusetjentiswa kuphela ku 120°C.

Kusebenta kwayo kwekulawula kubi ngandlela tsite kunaleyo ye-valve ye-globe, ikakhulukati kumavalvu e-pneumatic (noma emavalvu agezi.

5. Plaka iValvu

I-valve yepulagi ibhekisela ku-valve lejikeletako lapho khona incenye yekuvala isesimeni se-plunger. Ngekujika nga 90°, kuvulwa kwendlela kule plug kwentiwa kutsi kukhulumisane noma kwehlukaniswe nekuvulwa kwendlela emtimbeni we valve, kufezekisa kuvulwa noma kuvalwa kwe valve. Iphindze ibitwe ngekutsi yikhukhu, i-stopcock, noma lisango lelijikeletako. Kuma kwepulaki kungaba silinda noma conical. Kunetinhlobo letinyenti tayo, kufaka ekhatsi luhlobo lolucondzile, luhlobo lolunetindlela letintsatfu, kanye neluhlobo lolunetindlela letine. Isimiso sayo sifana ngalokuyinhloko naleso valve yebhola.

5.1 Tinzuzo:

Ilungele kusebenta njalo, ngekuvula nekuvala lokusheshako nalokulula.

Kumelana kwemanti kuncane.

Inesakhiwo lesilula, ivolumu lencane, sisindvo lesilula, futsi kulula kuyigcina.

Inekusebenta lokuhle kwekuvala.

Akuvinjelwa sicondziso sekufakwa, sicondziso sekugeleza se-medium kungaba ngekukhetsa.

Kute kudvudvuta, futsi umsindvo uphansi.

5.2 Tintfo letimbi:

Indzawo yekuvala inkhulu kakhulu, lokuholela ku-torque lenyenti kakhulu kanye nekungagucugucuki lokwenele.

Kutsintseka sisindvo sayo siqu, ubukhulu valve diameter kulinganiselwe.

Ekusetjentisweni mbamba, uma kudzingeka ivalve lenkhulu, kumele kusetjentiswe sakhiwo sepulagi lebuyela emuva, lokungenteka kutsi kuthinte umphumela wekuvala.

Imininingwane leyengetiwe, ungakhululeka kutsi utsintseIvalvi ye-TWSimboni.