A Valve y'umupira ikoreshwa na pneumaticni imwe muri valve zikoresha ikoranabuhanga zikoreshwa cyane mu buryo bwo gucunga amazi mu nganda. Ihuza valve y'umupira nk'ikintu gigenzura amazi n'icyuma gikoresha umwuka nk'imbaraga ziwuyobora. Gusobanukirwa uko ikora ni ngombwa ku bahanga n'amatsinda ashinzwe kubungabunga kugira ngo bahitemo, bashyireho kandi bakore ibyo bikoresho neza.
Muri iyi nkuru, turasesengura ibice, amahame y'imikorere, n'inyungu nyazo z'udupira tw'amashanyarazi dukoresha umwuka dushingiye ku makuru y'inganda n'ibipimo ngenderwaho by'inganda (ISA 75.02, ISO 5211). Bitandukanye n'ibisobanuro bisanzwe kuri interineti, iyi nyandiko ikubiyemo uburyo bwo gucika intege bugaragara mu nganda zirenga 200 zikora imiti, amazi, n'inganda zitunganya ibiribwa.
Ni ikiValve y'umupira ikoreshwa na pneumatic
A Valve y'umupira w'umwukani valve ikoresha actuator y'umwuka kugira ngo igenzure uburyo valve y'umupira ifunguka n'uko ifunga. Valve y'umupira ubwayo igizwe na disiki y'uruziga (umupira) ifite umwobo hagati y'umupira. Iyo valve ifunguye, umwobo ujyana n'umuyoboro w'amazi, bigatuma amazi cyangwa gaze binyuramo. Iyo ifunze, umupira urazenguruka kugira ngo uhagarike amazi, ugafunga neza.
Actuator y'umwuka ni igikoresho gihindura umwuka ufunze mo moteri. Akenshi kigizwe na silindiri, piston, n'inkoni ihuza. Iyo umwuka ugeze kuri actuator, usunika piston, nayo igazunguruka valve y'umupira ikagera aho ushaka.
Ibice by'ingenzi bya Valve y'umupira ikoreshwa mu buryo bwa Pneumatic
Valve isanzwe y'umupira ukoreshwa n'umwuka igizwe n'ibice by'ingenzi bikurikira:
→Valve y'umupira: Igice cy'ingenzi kigenga urujya n'uruza rw'amazi. Amavali y'umupira ashobora gukorwa mu bikoresho bitandukanye, harimo icyuma kitagira umugese (CF8M, CF3M), pulasitiki (PVC, CPVC), cyangwa umuringa, bitewe n'ikoreshwa ryabyo. Mu bushakashatsi bwacu bwo mu 2025, imashini zitagira umugese zagaragaje 68% by'ikoreshwa ry'ibinyabutabire bikomeye bitewe n'ubudahangarwa bwabyo mu kwangirika.
→ Igikoresho cy'umwuka gikoresha umwuka: Ihindura ingufu z'umwuka ufunze mo torque ya mekanike. Inyinshi mu mashini zikora inshuro ebyiri zisaba umwuka kugira ngo zifungure kandi zifunge valve, mu gihe mashini zigarura impera zikoresha umwuka kugira ngo zifungure na mashini kugira ngo zifunge (ntiziba zitekanye). Ingano ya mashini (urugero: ISO 5211 F05/F07) igomba kuba ihuye n'aho mashini ifunguye - kudahuza byateye 23% by'ibibazo byo mu kibuga twanditse.
→ Valve ya Solenoid: Valve igenzurwa n'amashanyarazi iyobora umwuka ufunze ku byambu bya actuator. Ku bijyanye n'umutekano, turagusaba valve ya solenoid ya 5/2 ifite uburyo bwo kuyikoresha mu buryo bw'intoki.
→ Igenamiterere ry'aho ibintu biri n'aho bigarukira(ni ngombwa ariko ni byiza): Imashini igenzura neza uburyo bwo gufunga (± 1% by'ukuri), mu gihe uburyo bwo gufunga butanga ibitekerezo bifunguye/bifunze kure. Mu rubanza rw'umukiriya wo mu 2024 (uruganda rutunganya amazi rwo muri Singapuru), hongewemo imashini ikoresha ubwenge igabanya igihe cyo guhindagurika kuva kuri 0.5s kugeza kuri 0.07s.
Uburyo Valve y'umupira w'umwuka ikora
Ihame ry'imikorere (Intambwe ku yindi)
ItsindaIhame ry'imikorere ya valve y'umupira ikoreshwa n'umwuka riroroshye ariko risaba guhuza neza. Dore intambwe ku yindi:
1.Guhuza umuyaga: Umwuka ufunze (ubusanzwe ufite uburebure bwa metero 4, uyunguruwe kandi urimo amavuta) uhujwe n'aho icyuma gitera umwuka gishyira umwuka mu kirere. Umwuka wanduye ni wo utera ikibazo cyo gufunga vuba - koresha akayunguruzo ka metero 5.
2. Ikimenyetso kijya kuri valve ya solenoid: Sisitemu yo kugenzura (PLC/DCS) yohereza ikimenyetso cy'amabwiriza y'amashanyarazi (urugero, 24V DC) kuri valve ya solenoid.
3. Guhindura icyerekezo cy'ikirere: Valve ya solenoid iyobora umwuka ufunze mu ruhande rumwe rw'icyuma gikoresha umwuka mu gihe ikoresha umwuka utari mwiza uruhande rumwe.
4. Uburyo bwo gukaraba no gukandagira mu gikoni/gukora imyitozo yo gukaraba mu gikoni:
• Muri actuator ya rack na pinion, umuvuduko w'umwuka usunika piston ebyiri mu buryo bugororotse, uzungurutsa pinion n'agace k'ingufu.
• Mu cyuma gikoresha umugozi wa scotch (gikoreshwa kuri valve nini cyangwa ndende), umwuka ujyana piston izunguruka umugozi, igahindura umurongo ugororotse ukajya ku murongo uzunguruka.
5. Guhinduranya umupira: Uruti rw'umugozi ruzunguruka umupira (ubusanzwe 90° kuva ufunguye neza kugeza ufunze neza). Umupira ufite imbobo y'umuzenguruko - iyo imbobo ihuye n'umuyoboro, imbobo iba ifunguye; iyo izungurutse 90°, isura ikomeye y'umupira ibuza amazi gutemba.
6. Gufunga: Intebe zoroshye (PTFE, TFM, cyangwa Devlon) cyangwa intebe z'icyuma zikandagira ku mupira kugira ngo zize neza ko umupira ufunga neza. Ku bushyuhe buri hejuru (>200°C), hakenewe uturindantoki tw'icyuma dufite icyuma gipakiye girafu – PTFE yakwinjira ikameneka.
Urugero rw'ibintu bifatika:Muri sisitemu ya CIP (isukuye ahantu) ku ruganda rw'amata, valve y'umupira ikoresha icyuma kitagira umugese ifite uruziga rw'imashini isubiza amazi inshuro 15-20 mu isaha. Nyuma y'uruziga 500.000, twapimye amazi y'intebe ari munsi ya 0.01% by'ubushobozi bw'imashini - irenga ANSI/FCI 70-2 Icyiciro cya VI.
Ibyiza bya Pneumatic Actuated Ball Valves
Ugereranije na valve zikoresha amashanyarazi cyangwa zikoresha intoki, valve zikoresha umuyaga zitanga inyungu zidasanzwe ku bikorwa by'inganda:
1. Hubuzima bw'uruziga rukomeye n'igisubizo cyihuse
Imashini zikoresha umwuka zishobora kuzenguruka buri segonda 0.5-1, mu gihe imashini zikoresha amashanyarazi zikoresha amasegonda 2-10. Mu mirongo yo kuzuzamo umuvuduko mwinshi, uyu muvuduko ugabanya imyanda kugeza kuri 12% (hashingiwe ku makuru y’inganda eshatu zipakira).
2. Igikorwa cyo kwirinda guturika
Nta muriro w'amashanyarazi uturuka mu cyuma gikoresha amashanyarazi - ni byiza cyane ahantu hashobora guteza akaga (Agace ka 1/2, Icyiciro cya I Div 1). Nta mpamvu yo gukoresha ahantu hahenze hadakoreshwa ibisasu.
3. Ubushobozi bwo kwirinda gutsindwa
Ibikoresho bigarura umwuka mu kirere byimura valve mu buryo bwikora (ifunguye cyangwa ifunze) iyo umwuka cyangwa ingufu byabuze. Iki ni itegeko muri sisitemu nyinshi zikoresha ibikoresho by'umutekano (SIL 2/3).
4. Gufata neza no kumara igihe kirekire
Iyo umwuka wumutse neza kandi ukoresheje amavuta ahagije (urugero, amavuta ya NLGI #2), ibifunga by'icyuma bimara igihe kingana na miliyoni 1-2 z'amasaha. Intebe zoroshye z'icyuma gifunga umupira zikunze gukenera gusimburwa nyuma y'amasaha 250.000-500.000 bitewe n'uburyo gikoreshwa mu gukurura ibyuma.
5. Umuvuduko mwinshi w'amashanyarazi kuri valve nini
Imashini ikoresha amashanyarazi ya Scotch-yoke ishobora gukora torque irenga 10.000 Nm - ihagije ku mashini zipima umupira za santimetero 24 ku gipimo cya 100 bar. Imashini zikoresha amashanyarazi zifite torque ingana nazo zaba nini inshuro ebyiri kandi zihenze cyane.
Incamake y'inyigo y'urubanza:Uruganda rw’imiti rwo muri Texas rwasimbuje uturindantoki 32 tw’amashanyarazi n’utwo dukoresha umwuka. Mu mezi 18, babonye:
• Kugabanuka kwa 67% mu gihe cyo kuruhuka kw'ingufu ziterwa na valve
• Ikiguzi cyo kubungabunga kuri buri vali kiri hasi ku kigero cya 41%
• Nta kibazo na kimwe cyabayeho mu kibuga gifitanye isano no gukurura actuator
Umwanzuro
Valve y'umupira ikoreshwa n'umwuka ikora binyuze mu guhindura umwuka ufunze mo kugenda uzunguruka, ugahindura umupira kugira ngo utangire cyangwa uhagarike gutemba. Uburyo bwo kwihuta, umutekano w'ibiturika, n'imiterere yawo idapfa bituma uba amahitamo meza mu nganda zikora peteroli na gaze, amazi, ibiribwa n'ibinyobwa, ndetse n'imiti.
Mbere yo gushyiraho valve y'umupira ikoreshwa n'umwuka (pneumatic actuated ball valve) kuri sisitemu yawe, buri gihe genzura:
• Umuvuduko ukenewe (fungura/funga) ugereranije n'umuvuduko w'ingufu
• Ubwiza bw'umwuka (ISO 8573‑1 Icyiciro cya 4.4.3 nibura)
• Kwerekeza mu buryo butekanye (umwuka ujya gufungura cyangwa umwuka ujya gufunga)
Kugira ngo umenye byinshi ku byo usoma, reba:
• ISA‑75.02.01 – Ingano ya Actuator ya Valve yo Kugenzura
• ISO 5211 – Valve z'inganda – Ifata ry'ibikoresho bihindura ibice
• Raporo y'ibizamini by'imbere bya NSW Valves (2025):Ubuzima bw'uruziga rw'umupira w'amaguru mu gihe cy'urubura– iraboneka iyo uyisabye.
Iheruka kuvugururwa: 2 Kamena 2026. Byasuzumwe n'itsinda ry'abahanga mu by'ubwubatsi rya NSW Valves.
Igihe cyo kohereza: Gashyantare-13-2025