Mukamagwiritsa ntchito valavu, nthawi zambiri pamakhala mavuto ena osasangalatsa, kuphatikizapo valavu yosatsekedwa konse. Ndiyenera kuchita chiyani? Vavu yowongolera ili ndi magwero osiyanasiyana otayikira mkati chifukwa cha kapangidwe kake kovuta. Lero, tikambirana mitundu isanu ndi iwiri yosiyanasiyana ya kutayikira kwa valavu yowongolera mkati ndi kusanthula ndi kukonza kwa chilichonse.

1. Valavu sinatseke mokwanira ndipo malo a zero a actuator si olondola.

Yankho:

1) Tsekani valavu ndi manja (onetsetsani kuti yatsekedwa kwathunthu);

2) Tsegulaninso valavu pamanja, bola ngati mphamvu yochepa singagwiritsidwe ntchito kuti muyitembenuze;

3) Tembenuzani valavu theka la kutembenuka mbali ina;

4) Kenako, sinthani malire apamwamba.

2. Kukankha kwa actuator sikokwanira.

Kukankha kwa actuator sikokwanira chifukwa valavu ndi yotseka pang'onopang'ono. Ngati palibe kupanikizika, zimakhala zosavuta kufika pamalo otsekedwa kwathunthu, koma ngati pali kupanikizika, kukwera kwa madzi sikungatheke, zomwe zimapangitsa kuti zikhale zosatheka kutseka kwathunthu.

Yankho: sinthani choyezera champhamvu kwambiri, kapena sinthani kukhala choyezera bwino kuti muchepetse mphamvu yosalinganika ya sing'anga

3. Kutayikira kwamkati komwe kumachitika chifukwa cha kusakhala bwino kwa kapangidwe ka mavavu owongolera magetsi

Chifukwa opanga ma valve salamulira mwamphamvu zinthu za ma valve, ukadaulo wokonza, ukadaulo wopangira, ndi zina zotero panthawi yopanga, pamwamba pake sipamangika bwino ndipo zolakwika monga pitting ndi trachoma sizimachotsedwa kwathunthu, zomwe zimapangitsa kuti valavu yowongolera yamagetsi ituluke mkati.

Yankho: Sinthaninso malo otsekera

4. Gawo lowongolera la valavu yowongolera yamagetsi limakhudza kutuluka kwa mkati mwa valavu.

Njira zowongolera makina, kuphatikizapo ma switch a valavu yoletsa magetsi ndi ma switch opitilira mphamvu, ndi njira yachikhalidwe yogwiritsira ntchito valavu yowongolera magetsi. Malo a valavu ndi osalondola, kasupe watha, ndipo kuchuluka kwa kutentha komwe kumawonjezeka sikufanana chifukwa zinthu zowongolera izi zimakhudzidwa ndi kutentha, kuthamanga, ndi chinyezi chozungulira, ndi zina zomwe zimachitika kunja, zomwe zimayambitsa kutuluka kwa mkati kwa valavu yowongolera magetsi.

Yankho: sinthani malire.

5. Kutayikira kwamkati komwe kumachitika chifukwa cha mavuto okhudzana ndi valavu yowongolera magetsi

Ndizachilendo kuti ma valve owongolera magetsi alephere kutseguka atatsekedwa pamanja, zomwe zimachitika chifukwa cha njira zokonzera ndi kusonkhanitsa. Malo ogwirira ntchito a ma switch apamwamba ndi otsika angagwiritsidwe ntchito kusintha kugwedezeka kwa valavu yowongolera magetsi. Ngati kugwedezeka kwasinthidwa pang'ono, valavu yowongolera magetsi sidzatseka mwamphamvu kapena kutseguka; ngati kugwedezeka kwasinthidwa kwakukulu, kungayambitse kuchuluka kwa njira yotetezera ya torque switch;

Ngati mphamvu ya switch yopitilira muyeso yawonjezeka, padzakhala ngozi yomwe ingawononge valavu kapena njira yochepetsera mphamvu, kapena ngakhale kuyatsa mota. Kawirikawiri, valavu yowongolera yamagetsi ikasinthidwa, malo otsika a switch ya chitseko chamagetsi amakhazikitsidwa pogwedeza valavu yowongolera yamagetsi pansi, kenako ndikuyigwedeza mbali yotseguka, ndipo malire apamwamba amakhazikitsidwa pogwedeza valavu yowongolera yamagetsi pamanja mpaka pamalo otseguka kwathunthu.

Motero, valavu yowongolera magetsi sidzalephereka kutsegulidwa itatsekedwa bwino ndi manja, zomwe zimapangitsa kuti chitseko chamagetsi chitseguke ndikutsekedwa momasuka, koma kwenikweni zimapangitsa kuti chitseko chamagetsi chituluke mkati. Ngakhale valavu yowongolera magetsi itakhala yokhazikika bwino, popeza malo ogwirira ntchito a limit switch nthawi zambiri amakhala okhazikika, medium yomwe imalamulira idzatsuka ndikuvala valavu nthawi zonse ikagwiritsidwa ntchito, zomwe zidzapangitsanso kuti mkati mwake mutuluke madzi chifukwa cha kutsekedwa kwa valavu.

Yankho: sinthani malire.

6. Kutulutsa madzi Kutuluka kwa mkati mwa valavu yowongolera magetsi kumachitika chifukwa cha dzimbiri la valavu lomwe limayambitsidwa ndi kusankha kolakwika kwa mtundu.

Kusiyanitsa kwa cavitation ndi kupanikizika kwalumikizidwa. Kusuntha kumachitika ngati kusiyana kwenikweni kwa kupanikizika P kwa valavu kuli kokwera kuposa kusiyana kwakukulu kwa kupanikizika Pc kwa cavitation. Mphamvu yochuluka imapangidwa panthawi ya cavitation pamene thovu limaphulika, zomwe zimakhudza mpando wa valavu ndi pakati pa valavu. Vavu yodziwika bwino imagwira ntchito mu cavitation kwa miyezi itatu kapena kuchepera, zomwe zikutanthauza kuti valavuyo imakhala ndi dzimbiri lalikulu la cavitation, zomwe zimapangitsa kuti mpando wa valavu utuluke mpaka 30% ya kayendedwe kabwino. Zigawo zopopera zimakhala ndi zotsatira zoopsa kwambiri. Kuwonongeka kumeneku sikungatheke.

Chifukwa chake, zofunikira zaukadaulo zama valve amagetsi zimasiyana malinga ndi momwe amagwiritsidwira ntchito. Ndikofunikira kusankha ma valve owongolera magetsi mwanzeru mogwirizana ndi njira yamakina.

Yankho: Kuti muwongolere njira, sankhani valavu yowongolera masitepe ambiri kapena valavu yowongolera sleeve.

7. Kutayikira kwamkati komwe kumachitika chifukwa cha kuwonongeka kwapakati komanso kukalamba kwa valavu yowongolera yamagetsi

Pambuyo poti valavu yowongolera yamagetsi yasinthidwa, pambuyo pa ntchito inayake, valavu yowongolera yamagetsi idzatsekedwa chifukwa chakuti kugwedezeka kumakhala kwakukulu kwambiri chifukwa cha kutsekeka kwa valavu, kuwonongeka kwapakati, pakati pa valavu ndi mpando kutha, komanso kukalamba kwa zigawo zamkati. Kuwonjezeka kwa kutuluka kwa valavu yowongolera yamagetsi kumachitika chifukwa cha kufooka. Kutuluka kwamkati kwa valavu yowongolera yamagetsi kudzaipiraipira pang'onopang'ono pakapita nthawi.

Yankho: sinthani choyeretsera magetsi ndikuchita kukonza ndi kuwerengera nthawi zonse.