Vavu ngati chida chabadwa kwa zaka zikwi

Vavundi chida chomwe chimagwiritsidwa ntchito pofalitsa ndi kuwongolera mpweya ndi madzi omwe ali ndi mbiri yosachepera zaka chikwi.

Pakalipano, mu dongosolo la mapaipi amadzimadzi, valavu yolamulira ndi chinthu chowongolera, ndipo ntchito yake yaikulu ndikulekanitsa zipangizo ndi mapaipi, kuyendetsa kayendedwe, kuteteza kubwerera, kulamulira ndi kutulutsa mphamvu. Popeza ndikofunikira kwambiri kusankha valavu yoyenera kwambiri yoyendetsera dongosolo la mapaipi, ndikofunikiranso kumvetsetsa mawonekedwe a valve ndi masitepe ndi maziko osankha valavu.

Kuthamanga mwadzina kwa valve

Kuthamanga kwadzina kwa valavu kumatanthawuza kapangidwe kamene kakanikizidwa kokhudzana ndi mphamvu zamakina a zigawo za mapaipi, ndiko kuti, ndiko kukakamiza kovomerezeka kwa valve pa kutentha komwe kumatchulidwa, komwe kumagwirizana ndi zinthu za valve. . Kuthamanga kwa ntchito sikufanana, choncho, kuthamanga kwadzina ndi chizindikiro chomwe chimadalira zinthu za valve ndipo chikugwirizana ndi kutentha kovomerezeka kwa ntchito ndi kupanikizika kwa ntchito.

Valavu ndi malo omwe ali m'kati mwa kayendedwe ka kayendedwe kake kapena kupanikizika, komwe kumagwiritsidwa ntchito kusintha kayendedwe kake kapena kupanikizika kwapakati. Ntchito zina ndi monga kuzimitsa kapena kuyatsa TV, kuwongolera kayendedwe kake, kusintha kayendedwe ka media, kuteteza kubweza kwa media, ndikuwongolera kapena kutulutsa mpweya.

Ntchitozi zimatheka mwa kusintha malo a kutsekedwa kwa valve. Kusintha uku kungachitike pamanja kapena zokha. Kugwira ntchito pamanja kumaphatikizaponso kuyendetsa pamanja pagalimoto. Ma valve ogwiritsidwa ntchito pamanja amatchedwa ma valve manual. Valavu yomwe imalepheretsa kubwereranso imatchedwa cheki valve; yomwe imayang'anira kuthamanga kwa mpumulo imatchedwa valavu yotetezera kapena valve yotetezera chitetezo.

Pakadali pano, makampani opanga ma valve amatha kupanga mitundu yonse yama valve pachipata, ma valve a globe, ma throttle valves, mapulagi, ma valve a mpira, ma valve a magetsi, ma diaphragm control valves, ma check valves, ma valve otetezera, ma valve ochepetsera kuthamanga, misampha ya nthunzi ndi ma valve otseka mwadzidzidzi. Zopangira mavavu amagulu 12, mitundu yopitilira 3000, ndi mafotokozedwe opitilira 4000; Kuthamanga kwakukulu kogwira ntchito ndi 600MPa, kutalika kokwanira mwadzina ndi 5350mm, kutentha kwakukulu ndi 1200℃, kutentha kochepa kogwira ntchito ndi -196℃, ndipo sing'anga yoyenera ndi Madzi, nthunzi, mafuta, gasi, zowononga zowononga (monga nitric acid, medium concentration sulfuric acid, etc.).

Samalani kusankha ma valve:

1. Pofuna kuchepetsa kuya kwa dothi la payipi,valavu ya butterflynthawi zambiri amasankhidwira payipi yokulirapo; Choyipa chachikulu cha valavu yagulugufe ndikuti mbale yagulugufe imakhala ndi gawo lina lamadzi, zomwe zimawonjezera kutayika kwa mutu;

2. Ma valve ochiritsira akuphatikizapovalavu butterfly, ma valve pachipata, ma valve a mpira ndi ma plug valves, ndi zina zotero.

3. Kuponyera ndi kukonza ma valve a mpira ndi ma plug valves ndi ovuta komanso okwera mtengo, ndipo nthawi zambiri ndi oyenera mapaipi ang'onoang'ono ndi apakatikati. Valve ya mpira ndi valavu ya pulagi imasunga ubwino wa valve imodzi yachipata, kukana kwamadzi pang'ono, kusindikiza kodalirika, kuchitapo kanthu, ntchito yabwino ndi kukonza. Valve ya pulagi imakhalanso ndi ubwino wofanana, koma gawo lodutsa madzi silozungulira bwino.

4. Ngati ili ndi mphamvu zochepa pa kuya kwa nthaka yophimba, yesani kusankha valve yachipata; kutalika kwa magetsi pachipata valavu lalikulu-m'mimba mwake ofukula chipata valavu zimakhudza nthaka-chophimba kuya kwa payipi, ndi kutalika kwa lalikulu-m'mimba mwake yopingasa chipata valavu kumawonjezera yopingasa m'dera wotanganidwa payipi ndi zimakhudza makonzedwe a mapaipi ena ;

5. M'zaka zaposachedwa, chifukwa cha kuwongolera kwaukadaulo woponya, kugwiritsa ntchito mchenga wa resin kungapewe kapena kuchepetsa kukonza makina, potero kumachepetsa ndalama, kotero kuthekera kwa mavavu a mpira omwe amagwiritsidwa ntchito pamapaipi akulu akulu ndikofunikira kufufuza. Ponena za mzere wa malire a kukula kwa caliber, uyenera kuganiziridwa ndikugawidwa malinga ndi momwe zinthu zilili.