Valve yocheperako, yomwe imadziwikanso kuti automatic recirculation valve, ndi valavu yoteteza pampu yomwe imayikidwa potuluka multistage vertical turbine pump kuteteza kuwonongeka chifukwa cha kutentha, phokoso lalikulu, kusakhazikika ndi cavitation pamene mpope ikugwira ntchito pansi pa katundu. . Malingana ngati kuthamanga kwa mpope kumakhala kotsika kuposa mtengo wina, doko lobwereranso la valve lidzatsegulidwa kuti liwonetsetse kuti madzi akuyenda bwino.

1. Kugwiritsa Ntchito Mfundo

Valve yochepa yothamanga imalumikizidwa ndi kutuluka kwa multistage vertical turbine pump . Monga valavu yowunikira, imadalira kukankhira kwa sing'anga kuti mutsegule diski ya valve. Pamene kupanikizika kwakukulu kwa njira kumakhalabe kosasinthika, kuthamanga kwa njira yaikulu kumakhala kosiyana, ndipo kutsegula kwa disc valve kumakhala kosiyana. Vavu yayikulu Chophimbacho chidzatsimikiziridwa pamalo enaake, ndipo chowotcha cha valve cha dera lalikulu chidzatumiza zomwe zimachitika pazitsulo zazikulu za valve kupita kumalo odutsa kudzera pa lever kuti azindikire kusintha kwa njirayo.

2. Njira Yogwirira Ntchito

Pamene diski yayikulu ya valve itsegulidwa, diski ya valve imayendetsa ntchito ya lever, ndipo mphamvu ya lever imatseka njirayo. Pamene kuthamanga kwa msewu waukulu kumachepa ndipo diski yaikulu ya valve sichitha kutsegulidwa, diski yaikulu ya valve idzabwerera kumalo osindikizira kuti atseke njira yaikulu. Disiki ya valve imayendetsanso ntchito ya lever, njira yodutsa imatsegulidwa, ndipo madzi amayenda kuchokera panjira kupita ku deaerator. Pansi pa kukakamizidwa, madzi amayenda kulowera kwa mpope ndikuzunguliranso, potero amateteza mpope.

3. Ubwino

Valve yocheperako (yomwe imatchedwanso automatic control valve, automatic recirculation valve, automatic return valve) ndi valavu yokhala ndi ntchito zambiri zophatikizidwa mu imodzi.

ubwino:

1. Valve yochepa yothamanga ndi valve yodzilamulira yokha. Ntchito ya lever imangosintha kutsegulira kodutsa molingana ndi kuchuluka kwa kuthamanga (kusintha kwadongosolo). Zili ndi makina opangidwa kwathunthu ndipo zimadalira valavu yoyendetsera kayendetsedwe kake ndipo sichifuna mphamvu zowonjezera.

2. Kuthamanga kodutsa kungasinthidwe ndi kuyendetsedwa, ndipo ntchito yonse ya valve ndi yotsika mtengo kwambiri.

3. Njira zonse ziwiri ndi bypass zimagwira ntchito ngati ma cheki ma valve.

4. Njira zitatu zooneka ngati T, zoyenera mapaipi obwezeretsanso.

5. Kudutsa sikufuna kuyenda kosalekeza ndipo kumachepetsa kugwiritsa ntchito mphamvu.

6. Ntchito zambiri zophatikizidwa mu imodzi, kuchepetsa mapangidwe a ntchito.

7. Zili ndi ubwino waukulu wamtengo wapatali pogula katundu woyambirira, kuyika ndi kusintha, ndikukonza pambuyo pake, kuchepetsa ndalama zopangira ndi kukonza, ndipo mtengo wake wonse ndi wotsika kuposa machitidwe a valve olamulira.

8. Kuchepetsa mwayi wolephera, kuchepetsa mwayi wolephera chifukwa cha madzi othamanga kwambiri, ndi kuthetsa mavuto a cavitation ndi ndalama zopangira magetsi.

9. Ntchito yokhazikika ya multistage pampu yoyimirira ya turbine akhoza kutsimikiziridwa pansi pazifukwa zotsika.

10. Chitetezo cha pampu chimafuna valavu imodzi yokha ndipo palibe zigawo zina zowonjezera. Popeza sichimakhudzidwa ndi zolakwika, njira yayikulu ndi yodutsa imakhala yonse, ndikupangitsa kuti ikhale yopanda kukonza.

4. Kuyika

Valavu yotsika kwambiri imayikidwa potuluka pampu ndipo iyenera kuyikidwa pafupi ndi pampu yotetezedwa ya centrifugal. Mtunda pakati pa kutuluka kwa mpope ndi kulowetsa kwa valve sikuyenera kupitirira mamita 1.5 kuti muteteze phokoso laling'ono chifukwa cha kuphulika kwa madzi. Nyundo yamadzi. Kayendetsedwe ka kayendedwe kake ndi kuchokera pansi kupita pamwamba. Kuyika molunjika kumakondedwa, koma kuyika kopingasa kumathekanso.

Kusamala Pokonza, Kusamalira ndi Kugwiritsa Ntchito

1. Vavu iyenera kusungidwa m'chipinda chowuma, chopanda mpweya, ndipo mapeto onse a valavu ayenera kutsekedwa.

2. Mavavu osungidwa kwa nthawi yayitali ayenera kuyang'aniridwa pafupipafupi kuti achotse litsiro. Chisamaliro chapadera chiyenera kuperekedwa pakuyeretsa kwa malo osindikizira kuti ateteze kuwonongeka kwa malo osindikizira.

3. Musanakhazikitse, muyenera kufufuza mosamala ngati chizindikiro cha valve chikugwirizana ndi zofunikira zogwiritsira ntchito.

4. Musanakhazikitse, yang'anani mkati mwa mkati ndi kusindikiza pamwamba pa valve. Ngati pali dothi, pukutani ndi nsalu yoyera.

5. Valavu iyenera kuyang'aniridwa nthawi zonse mutatha kugwiritsa ntchito kuti muwone malo osindikizira ndi O-ring. Ngati yawonongeka ndikulephera, iyenera kukonzedwa kapena kusinthidwa panthawi yake.