Misika Yaikulu Yotumiza kunja

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Mafotokozedwe Akatundu

Ntchito yayikulu ya valavu yokhetsera mu Kutenthetsa ndikutulutsa madzi otayira kunja kwa makina otentha kuchokera kumapeto kosiyanasiyana, kugwiritsa ntchito kuli kofanana ndi valavu ya mpira.

Zogulitsa ziyenera kugwiritsidwa ntchito pamikhalidwe iyi:

1.Kupanikizika kwa ntchito: ≤1.0 MPa (Zindikirani: Kupanikizika kwa ntchito komwe makasitomala amafunikira kungakhale kosiyana ndi ma valves. Pogwiritsira ntchito mphamvu yogwira ntchito, sikuyenera kupitirira mphamvu yogwira ntchito yosindikizidwa ndi thupi la valve ndi

zogwirira ntchito zamakampani athu).

2.Zothandizira zofalitsa: madzi ozizira ndi otentha.

3.Kugwira ntchito kutentha: 0-100 ℃. Pa kutentha kochepa, sing'angayo idzakhala yamadzimadzi kapena mpweya, ndipo palibe ayezi kapena tinthu tating'onoting'ono timene tidzakhalapo pakati.

Kuyika ndikofunikira:

1.Chonde sankhani valve malinga ndi momwe ntchito ikugwirira ntchito.Ngati valavu ikugwiritsidwa ntchito mopitirira malire a luso lamakono, idzawononga kapena kuphulika.Kapena, ngakhale valavu ingagwiritsidwe ntchito bwino, moyo wautumiki wa valve udzafupikitsidwa.
2.Sankhani chida choyenera (wrench) molingana ndi kukula kwa valve panthawi ya kukhazikitsa, ndipo konzani mapeto a ulusi wa msonkhano kuti mupewe kupsinjika kwa thupi la valve.Kuyika kwambiri torque kungayambitse kuwonongeka kwa ma valve.
3. Zowonjezera zowonjezera kapena zopindika zowonjezera ziyenera kuikidwa kwa mapaipi aatali kuti athetse kupsinjika komwe kumayikidwa pa ma valve ndi kuwonjezereka kwa kutentha ndi kutsika kwa mapaipi.
4.Mapeto a kutsogolo ndi kumbuyo kwa ma valve ayenera kukhazikitsidwa kuti valavu isawonongeke chifukwa cha kupsinjika maganizo chifukwa cha kulemera kwa mapaipi ndi zofalitsa.
5.Valves ayenera kukhala omasuka kwathunthu panthawi ya unsembe.Pamene payipi ikuwombera ndikuyika, ma valve amatha kulowa m'malo ogwirira ntchito.

zinthu zofunika kuziganizira pakugwiritsa ntchito:
1.Kutsegula ndi kutseka kwa ma valve a mpira osasunthika kwa nthawi yaitali ndi aakulu kuposa achibadwa pamene amatsegulidwa koyamba ndi kutsekedwa.Pambuyo pa kusintha kamodzi, nthawi yotsegula ndi yotseka imalowa m'malo abwino.
2.Pamene kutuluka kumapezeka pakati pa dzenje la valavu ya mpira, kapu yapakati pa dzenje lapakati la valve ya mpira ikhoza kutsekedwa bwino molunjika ndi wrench yotseguka kuti asatayike.Kuzungulira kolimba kwambiri kumawonjezera nthawi yotsegulira ndi yotseka.
3.Pansi pa ntchito yogwirira ntchito, valve ya mpira imatsegulidwa kapena kutsekedwa momwe zingathere, zomwe zimathandiza kuwonjezera moyo wautumiki wa valve ya mpira.
4.Ngati sing'anga mkati mwa valve ndi yozizira, imatha kusungunuka pang'onopang'ono ndi madzi otentha.Palibe kupopera moto kapena nthunzi kumaloledwa.