A.Ku vekiwa ka valve ya gede
Valve ya gede, leyi tlhelaka yi tiviwa tani hi gate valve, i valve leyi tirhisaka gede ku lawula ku pfuleka na ku pfala, naswona yi lulamisa ku khuluka ka phayiphi naswona yi pfula no pfala phayiphi hiku cinca xiphemu xo tsemakanya.Tivalvu ta gede switirhisiwa ngopfu eka tiphayiphi leti pfulaka hiku hetiseka kumbe ku pfala hiku hetiseka xitirhisiwa xa mati. Ku vekiwa ka valve ya gede hi ntolovelo a ku na swilaveko swa nkongomiso, kambe a swi nge tlheriseriwi endzhaku.
B.Ku vekiwa kaglobe ya misava valve
Valve ya globe i valve leyi tirhisaka valve disc ku lawula ku pfuleka na ku pfala. Lulamisa ku khuluka ka le xikarhi kutani u tsema ndlela ya le xikarhi hiku cinca xivandla exikarhi ka valve disc na xitulu xa valve, leswivulaka ku cinca vukulu bya xiphemu xa channel. Loko ku nghenisiwa valve yo pfala, kufanele ku tekeriwa enhlokweni ndlela leyi mati lawa ya khulukaka ha yona.
Nsinya wa nawu lowu faneleke ku landzeleriwa loko ku vekiwa valve ya globe hileswaku mati lawa yanga eka phayiphi ya hundza eka khumbi ra valve kusuka ehansi kuya e henhla, leswi hi ntolovelo switivekaka tani hi “low in and high out”, naswona aswi pfumeleriwi ku veka endzhaku.
C.Ku vekiwa ka valve yo kambela
Ku kambela valve, leyi tlhelaka yi tiviwa tanihi valve yo kambela ni valve ya ndlela yin’we, i valve leyi pfulaka ni ku pfala hi yoxe ehansi ka xiendlo xa ku hambana ka ntshikelelo exikarhi ka le mahlweni ni le ndzhaku ka valve. Ntirho wa yona iku endla leswaku medium yi khulukela eka tlhelo rin’we ntsena naswona yi sivela medium kuva yi khulukela endzhaku eka tlhelo ro tlhelela endzhaku. Hi ku ya hi swivumbeko swa tona swo hambana-hambana, .ti valve to kambela ku katsa muxaka wa lift, muxaka wa swing na muxaka wa butterfly wafer. Lift check valve yi avanyisiwile hi horizontal na vertical. Loko u nghenisavalve yo kambela, ku fanele ku tlhela ku nyikiwa nyingiso eka tlhelo ra ku khuluka ka xitirhisiwa naswona a swi nge vekiwi hi ndlela yo tlhelela endzhaku.
D.Ku vekiwa ka valve yo hunguta ntshikelelo
Valve yo hunguta ntshikelelo i valve leyi hungutaka ntshikelelo wo nghena kuya eka ntshikelelo wokarhi lowu lavekaka wa outlet hiku lulamisa, naswona yititshege hi matimba ya medium hi yoxe kuva yi hlayisa ntshikelelo wo huma wutshamisekile hiku tisungulela.
1. Ntlawa wa valve yo hunguta ntshikelelo lowu vekiweke hi ku kongoma hi ntolovelo wu vekiwa etlhelo ka rirhangu eka ku tlakuka loku faneleke ku suka ehansi; ntlawa wa valve yo hunguta ntshikelelo lowu vekiweke hi ndlela yo rhendzeleka hi ntolovelo wu vekiwa eka pulatifomo yo tirha ya nkarhi hinkwawo.
2. Nsimbi yo chela yi layichiwile eka rirhangu ehandle ka ti valve timbirhi to lawula (hi ntolovelo ti tirhisiwa eka ti globe valves) ku endla bracket, naswona phayiphi ya bypass yitlhela yi namarheta eka bracket kuva yi levela naku ringanisiwa.
3. Valve yo hunguta ntshikelelo yifanele ku vekiwa yi yimile eka phayiphi leyi nga horizontal, naswona ayi fanelanga kuva yi rhetela. Museve eka miri wa valve wufanele ku kombetela eka tlhelo ra ku khuluka ka le xikarhi, naswona awu fanelanga ku vekiwa endzhaku.
4. Ti valve ta globe na ti high na low pressure pressure gauges tifanele ku vekiwa eka matlhelo hamambirhi ku languta ku cinca ka ntshikelelo emahlweni na le ndzhaku ka valve. Diameter ya phayiphi endzhaku ka valve yo hunguta ntshikelelo yifanele kuva 2#-3# yikulu kutlula diameter ya inlet pipe emahlweni ka valve, naswona kufanele ku vekiwa phayiphi ya bypass kuva yi hlayisiwa.
5. Phayiphi yo ringana na ntshikelelo ya valve yo hunguta ntshikelelo wa membrane yifanele ku hlanganisiwa na phayiphi ya ntshikelelo wale hansi. Tiphayiphi ta ntshikelelo wa le hansi ti fanele ku va na ti valve ta vuhlayiseki ku tiyisisa matirhelo lama hlayisekeke ya sisiteme.
6. Loko yitirhisiwa eka steam decompression, kufanele ku vekiwa phayiphi yo humesa mati. Eka tisisiteme ta tiphayiphi leti lavaka mpimo wa le henhla wa ku basisiwa, sefo yifanele ku vekiwa loko kungase endliwa valve yo hunguta ntshikelelo.
7. Endzhaku ka loko ntlawa wa valve yo hunguta ntshikelelo wu vekiwile, valve yo hunguta ntshikelelo na valve ya vuhlayiseki swi fanele ku kamberiwa ntshikelelo, swi hlantswiwa no lulamisiwa ku ya hi swilaveko swa dizayini, naswona mfungho lowu lulamisiweke wu fanele ku endliwa.
8. Loko u hlamba valve yo hunguta ntshikelelo, pfala valve yo nghena ya pressure reducer kutani u pfula valve yo hlamba leswaku yi ta hlamba.
E.Ku vekiwa ka swirhalanganyi
Ntirho wa xisekelo wa steam trap iku humesa mati lawa yanga hlanganisiwa, moya na gasi ya carbon dioxide eka steam system hiku hatlisa hilaha swinga kotekaka hakona; hi nkarhi lowu fanaka, yi nga sivela hi ku tisungulela ku khuluka ka mpfula hi mpimo lowukulu. Kuna tinxaka totala ta swirhalanganyi, xin’wana na xin’wana xina matirhelo yohambana.
1. Ti valve to pfala (ti valve to pfala) tifanele ku vekiwa emahlweni nale ndzhaku, naswona filter yifanele ku vekiwa exikarhi ka trap na valve yo pfala yale mahlweni kuva ku sivela thyaka eka mati lawa ya pfanganisiweke kuva ya pfale ntlhamu.
2. Phayiphi yo kambela yifanele ku vekiwa exikarhi ka steam trap na rear shut-off valve ku kambela loko steam trap yitirha hindlela ya ntolovelo. Loko ku humesiwa nhlayo leyikulu ya mpfula loko phayiphi yo kambela yi pfuriwile, swivula leswaku ntlhamu wa mpfula wu tshovekile naswona wufanele ku lunghisiwa.
3. Xikongomelo xo veka phayiphi ya bypass i ku humesa mati yo tala lama pfanganisiweke hi nkarhi wa ku sungula na ku hunguta ndzhwalo wa ku humesa mati ya ntlhamu.
4. Loko ntlhamu wu tirhisiwa ku humesa mati lama hlanganisiweke ya switirhisiwa swo kufumeta, wu fanele ku vekiwa eka xiphemu xa le hansi xa switirhisiwa swo kufumeta, leswaku phayiphi ya condensate yi tlheriseriwa hi ku kongoma eka ntlhamu wa mpfula ku sivela mati ku hlayisiwa eka switirhisiwa swo kufumeta.
5. Ndzhawu yo veka yifanele kuva ekusuhi swinene na ndzhawu yo humesa mati hilaha swinga kotekaka hakona. Loko mpfhuka wuri kule swinene, moya kumbe mpfula swita hlengeletana eka phayiphi yo olova emahlweni ka ntlhamu.
6. Loko phayiphi ya horizontal ya steam main pipe yi lehe ngopfu, xiphiqo xa drainage xifanele ku tekeriwa enhlokweni.
F.Ku vekiwa ka valve ya vuhlayiseki
Valve ya vuhlayiseki i valve yo hlawuleka leyi swiphemu swo pfula na swo pfala swinga eka xiyimo xo pfala hi ntolovelo ehansi ka xiendlo xa matimba yale handle. Loko ntshikelelo wa xitirhisiwa lexi nga eka xitirhisiwa kumbe phayiphi wu tlakuka ku tlula mpimo lowu vekiweke, wu humesa xitirhisiwa lexi ehandle ka sisiteme ku sivela ntshikelelo wa le xikarhi eka phayiphi kumbe xitirhisiwa ku tlula mpimo lowu vekiweke. .
1. Loko kungase vekiwa, xiendliwa xifanele ku kamberiwa hi vukheta kutiyisisa loko kuri na xitifikheti xa ku fambisana na buku ya xiendliwa, leswaku kutava ku hlamuseriwa ntshikelelo lowu tshamaka wuri kona loko u huma efemeni.
2. Valava ya vuhlayiseki yi fanele ku lulamisiwa ekusuhi hi laha swi kotekaka ha kona ni pulatifomo leswaku yi kamberiwa ni ku hlayisiwa.
3. Valve ya vuhlayiseki yifanele ku vekiwa hiku yima, medium yifanele ku khuluka kusuka ehansi kuya e henhla, naswona ku yima ka nsinya wa valve kufanele ku kamberiwa.
4. Ehansi ka swiyimo leswi tolovelekeke, tivalvu to pfala a ti nge vekiwi emahlweni na le ndzhaku ka valve ya vuhlayiseki ku tiyisisa vuhlayiseki na ku tshembheka.
5. Ku hungutiwa ka ntshikelelo wa valve ya vuhlayiseki: loko xitirhisiwa xi ri mati, hi ntolovelo xi humesiwa eka phayiphi kumbe sisiteme leyi pfalekeke; loko xitirhisiwa lexi xi ri gasi, hi ntolovelo xi humesiwa xi ya exibakabakeni xa le handle;
6. Xitirhisiwa xa oyili na gasi hi ntolovelo swinga humesiwa empfhukeni, naswona ndzhawu yo huma ya phayiphi yo humesa moya ya valve ya vuhlayiseki yifanele kuva 3m yale henhla kutlula swivumbeko swale henhla swinene leswi rhendzeleke, kambe swiyimo leswi landzelaka swifanele ku humesiwa eka sisiteme leyi pfalekeke ku tiyisisa vuhlayiseki.
7. Dyayamitha ya phayiphi ya vaaki yi fanele ku ringana na dyayimeta ya phayiphi yo nghena ya valve; dyayimeta ya phayiphi yo humesa a yi fanelanga ku va yitsongo ku tlula dyayimeta yo huma ya valve, naswona phayiphi yo humesa yi fanele ku yisiwa ehandle naswona yi vekiwa hi xikunwana, leswaku ndhawu yo huma ya phayiphi yi langutana na ndhawu leyi hlayisekeke.
8. Loko valve ya vuhlayiseki yi vekiwile, loko ku hlanganisiwa exikarhi ka valve ya vuhlayiseki na switirhisiwa na phayiphi swi ri ku pfula ku welda, dyayimeta yo pfula yi fanele ku fana na dyayimeta ya vito ya valve ya vuhlayiseki.
Nkarhi wa poso: Jun-10-2022
