1. Vavu yachipata: Vavu yachipata imatanthawuza valavu yomwe membala wake wotseka (chipata) amayenda motsatira njira yowongoka ya njirayo. Amagwiritsidwa ntchito kwambiri podula sing'anga pa payipi, ndiko kuti, kutsegulidwa kwathunthu kapena kutsekedwa kwathunthu. Ma valve a zipata zonse sangathe kugwiritsidwa ntchito kuwongolera kuyenda. Itha kugwiritsidwa ntchito pa kutentha kochepa komanso kuthamanga kwambiri komanso kutentha kwambiri komanso kuthamanga kwambiri, ndipo ingagwiritsidwe ntchito molingana ndi zipangizo zosiyanasiyana za valve. Komabe, ma valve olowera pakhomo nthawi zambiri sagwiritsidwa ntchito m'mapaipi omwe amanyamula zinthu monga matope.

ubwino:
1. Small madzimadzi kukana;
2. Torque yofunikira pakutsegula ndi kutseka ndi yaying'ono;
3. Itha kugwiritsidwa ntchito papaipi yapaintaneti ya mphete pomwe sing'anga imayenda mbali ziwiri, ndiko kunena kuti, njira yolowera sing'angayo siyimatsekeka;
4. Ikatsegulidwa kwathunthu, malo osindikizira sawonongeka pang'ono ndi sing'anga yogwirira ntchito kuposa valavu ya globe;
5. Maonekedwe ndi mapangidwe ake ndi ophweka ndipo njira yopangira ndi yabwino;
6. Kutalika kwake ndi kochepa.

zoperewera:
1. Kukula konse ndi kutalika kwa kutsegula ndi kwakukulu, ndipo malo ofunikira oyika nawonso ndi aakulu;
2. Potsegula ndi kutseka, malo osindikizira amatsitsimutsidwa, ndipo kukangana kumakhala kwakukulu, ndipo n'kosavuta kuyambitsa abrasion ngakhale kutentha kwakukulu;
3. Nthawi zambiri, ma valve a pakhomo amakhala ndi malo awiri osindikizira, omwe amawonjezera zovuta pakukonzekera, kupera ndi kukonza;
4. Nthawi yotsegula ndi yotseka ndi yaitali.

2. Vavu ya gulugufe: Valovu ya gulugufe ndi mtundu wa vavu yomwe imagwiritsa ntchito kutsegulira ndi kutseka kwa mtundu wa disc kuti itembenuke cham'mbuyo pafupifupi 90 ° kuti itsegule, kutseka ndi kusintha njira yamadzimadzi.

ubwino:
1. Mapangidwe osavuta, ang'onoang'ono, olemera kwambiri, osagwiritsidwa ntchito pang'ono, osagwiritsidwa ntchito muzitsulo zazikulu;
2. Kutsegula ndi kutseka mofulumira, kukana kuyenda kochepa;
3. Itha kugwiritsidwa ntchito pazofalitsa zokhala ndi tinthu tating'onoting'ono toyimitsidwa, ndipo itha kugwiritsidwanso ntchito ngati ufa ndi granular media molingana ndi mphamvu yakusindikiza. Ndi oyenera njira ziwiri kutsegula ndi kutseka ndi kusintha mpweya ndi fumbi kuchotsa mapaipi, ndipo chimagwiritsidwa ntchito mapaipi mpweya ndi madzi mu zitsulo, makampani kuwala, mphamvu ya magetsi, kachitidwe petrochemical, etc.

zoperewera:
1. Kuwongolera koyenda kosiyanasiyana sikuli kwakukulu. Kutsegula kukafika 30%, kutuluka kudzalowa kuposa 95%.
2. Chifukwa cha kuchepa kwa kapangidwe ka agulugufe ndi zinthu zosindikizira, sikoyenera kutentha kwambiri komanso dongosolo la mapaipi othamanga kwambiri. Kutentha kogwira ntchito kumakhala pansi pa 300 ° C ndi pansi pa PN40.
3. Kusindikiza kusindikiza kumakhala kosauka kusiyana ndi ma valve a mpira ndi ma valve a globe, kotero amagwiritsidwa ntchito m'malo omwe zofunikira zosindikizira sizokwera kwambiri.

3. Vavu ya mpira: Imapangidwa kuchokera ku pulagi valavu. Gawo lake lotsegula ndi lotseka ndi gawo, ndipo thupi losindikiza limazungulira 90 ° mozungulira tsinde la valve kuti likwaniritse cholinga chotsegula ndi kutseka. Valavu ya mpira imagwiritsidwa ntchito makamaka kudula, kugawa ndi kusintha kayendedwe ka sing'anga papaipi, ndipo valavu ya mpira yopangidwa ndi kutsegula kwa V imakhalanso ndi ntchito yabwino yoyendetsera kayendetsedwe kake.

ubwino:
1. Ali ndi kukana kotsika kwambiri (kwenikweni 0);
2. Chifukwa sichidzakakamira pamene ikugwira ntchito (mu mafuta), ikhoza kuyikidwa bwino pazitsulo zowononga ndi zakumwa zochepa zowira;
3. Pakukakamiza kwakukulu ndi kutentha, zimatha kukwaniritsa kusindikiza kwathunthu;
4. Ikhoza kuzindikira kutsegula ndi kutseka mofulumira. Nthawi yotsegulira ndi yotseka yazinthu zina ndi 0.05 ~ 0.1s yokha, kuti zitsimikizire kuti zitha kugwiritsidwa ntchito pamakina opangira benchi yoyesera. Potsegula ndi kutseka valavu mwamsanga, palibe kugwedezeka pakugwira ntchito.
5. Wozungulira membala wotseka akhoza kukhazikitsidwa pamalire;
6. Sing'anga yogwirira ntchito imasindikizidwa modalirika mbali zonse ziwiri;
7. Mukatsegulidwa kwathunthu ndi kutsekedwa kwathunthu, malo osindikizira a mpira ndi mpando wa valve amasiyanitsidwa ndi sing'anga, kotero kuti sing'anga yomwe imadutsa mu valve pa liwiro lalikulu sichidzayambitsa kukokoloka kwa malo osindikizira;
8. Ndi mawonekedwe ophatikizika ndi kulemera kopepuka, imatha kuonedwa ngati njira yabwino kwambiri yopangira ma valve otsika kutentha kwapakati;
9. Thupi la valavu ndi lofanana, makamaka mawonekedwe a thupi la valve, omwe amatha kupirira kupsinjika kwa payipi;
10. Zigawo zotsekera zimatha kupirira kusiyana kwakukulu kothamanga pamene kutseka.
11. Valavu ya mpira yokhala ndi thupi lopangidwa bwino imatha kukwiriridwa mwachindunji pansi, kotero kuti mbali zamkati za valavu zisawonongeke, ndipo moyo wautali wautumiki ukhoza kufika zaka 30. Ndiwo valavu yabwino kwambiri yamapaipi amafuta ndi gasi.

zoperewera:
1. Chifukwa chofunika kwambiri pampando wosindikiza mphete ya valavu ya mpira ndi polytetrafluoroethylene, imakhala yochepa kuzinthu zonse za mankhwala, ndipo imakhala ndi koyefikeni yaing'ono, yokhazikika, yokhazikika, yosavuta kukalamba, yogwiritsira ntchito kutentha kwakukulu ndi kusindikiza ntchito Zabwino kwambiri. . Komabe, thupi katundu wa PTFE, kuphatikizapo mkulu coefficient wa kukula, tilinazo ozizira otaya ndi osauka matenthedwe madutsidwe, amafuna kuti zisindikizo mpando ayenera kupangidwa mozungulira katundu. Chifukwa chake, zinthu zosindikizira zikalimba, kudalirika kwa chisindikizo kumasokonekera. Komanso, PTFE ili ndi kutentha kochepa ndipo ingagwiritsidwe ntchito pansi pa 180 ° C. Pamwamba pa kutentha uku, zinthu zosindikizira zidzakalamba. Pakagwiritsidwa ntchito kwa nthawi yayitali, nthawi zambiri sagwiritsidwa ntchito pa 120 ° C.
2. Kusintha kwake kumakhala koipitsitsa kuposa valve ya globe, makamaka valve ya pneumatic (kapena valve yamagetsi).

4. Vavu ya globe: imatanthawuza valavu yomwe membala wake wotseka (chimbale) amayenda pakatikati pa mpando wa valve. Malingana ndi mawonekedwe a kayendetsedwe ka diski, kusintha kwa doko la mpando wa valve kumayenderana ndi kugunda kwa disc. Chifukwa kutsegula kapena kutseka kwa tsinde la valve ya mtundu uwu wa valve ndi kochepa kwambiri, ndipo kumakhala ndi ntchito yodalirika yodulira, ndipo chifukwa kusintha kwa mpando wa valve kutsegulira kumayenderana ndi kugunda kwa valve disc, ndi ndizoyenera kwambiri kusintha koyenda. Choncho, valavu yamtunduwu ndi yoyenera kwambiri kudula kapena kuwongolera ndi kugwedeza.

ubwino:
1. Panthawi yotsegulira ndi kutseka, popeza mphamvu yotsutsana pakati pa diski ndi kusindikiza pamwamba pa thupi la valve ndi yaying'ono kusiyana ndi ya valve yachipata, imakhala yosagwira ntchito.
2. Kutalika kotsegulira nthawi zambiri kumakhala 1/4 ya njira ya mpando, kotero ndi yaying'ono kwambiri kuposa valve yachipata;
3. Kawirikawiri pali malo amodzi okha osindikizira pa thupi la valve ndi diski ya valve, kotero kuti kupanga mapangidwe kumakhala bwino ndipo n'kosavuta kusunga.
4. Popeza chodzaza nthawi zambiri chimakhala chisakanizo cha asibesitosi ndi graphite, mulingo wokana kutentha ndi wokwera kwambiri. Nthawi zambiri mavavu a nthunzi amagwiritsa ntchito ma valve a globe.

zoperewera:
1. Popeza kayendedwe ka kayendedwe ka sing'anga kupyolera mu valavu yasintha, kuchepa kwapakati pa valve ya globe ndipamwamba kuposa mitundu ina yambiri ya ma valve;
2. Chifukwa cha kukwapula kwautali, liwiro lotsegula ndilocheperapo kusiyana ndi la valve ya mpira.

5. Pulagi valve: Imatanthawuza valavu yozungulira yokhala ndi gawo lotseka lokhala ngati plunger. Kupyolera mu kuzungulira kwa 90 °, doko la tchanelo pa pulagi ya valavu imalumikizidwa kapena kupatulidwa ndi doko la ma valve pa thupi la valve kuti lizindikire kutseguka kapena kutseka. Mawonekedwe a pulagi ya valve akhoza kukhala cylindrical kapena conical. Mfundo yake ndi yofanana ndi ya valve ya mpira. Valve ya mpira imapangidwa pamaziko a valavu ya pulagi. Amagwiritsidwa ntchito kwambiri m'malo opangira mafuta komanso m'makampani a petrochemical.

6. Valve chitetezo: amagwiritsidwa ntchito ngati chipangizo chotetezera kupanikizika kwambiri pazitsulo zoponderezedwa, zipangizo kapena mapaipi. Pamene kupanikizika kwa zipangizo, chidebe kapena payipi ikukwera pamwamba pa mtengo wovomerezeka, valavu idzatseguka pokhapokha ndikutulutsa kwathunthu kuteteza zipangizo, chidebe kapena payipi ndi kupanikizika kuti zisapitirire kukwera; pamene kupanikizika kumatsikira pamtengo wotchulidwa, valavu iyenera Kutseka nthawi yomweyo kuti iteteze chitetezo cha zida, zotengera kapena mapaipi.

7. Msampha wa nthunzi: Madzi ena ofupikitsidwa amapangidwa ponyamula nthunzi, mpweya woponderezedwa ndi zinthu zina. Pofuna kuwonetsetsa kuti chipangizocho chikugwira ntchito bwino komanso chimagwira ntchito motetezeka, zofalitsa zopanda pake komanso zovulazazi ziyenera kutulutsidwa munthawi yake kuti zitsimikizire kugwiritsa ntchito ndi chitetezo cha chipangizocho. ntchito. Lili ndi ntchito zotsatirazi: 1. Imatha kuchotsa madzi osungunuka mwachangu; 2. Pewani kutuluka kwa nthunzi; 3. Chotsani mpweya ndi mpweya wina wosasunthika.

8. Valavu yochepetsera kuthamanga: Ndi valavu yomwe imachepetsa kukakamiza kolowera kumtundu wina wofunikira wotuluka kudzera mukusintha, ndipo imadalira mphamvu ya sing'anga yokhayo kuti ikhalebe ndi mphamvu yokhazikika yotuluka.

9. Onani valavu: yomwe imadziwikanso kuti reverse flow valve, valve check, valve back pressure ndi valve ya njira imodzi. Ma valve awa amatsegulidwa ndi kutsekedwa ndi mphamvu yopangidwa ndi kutuluka kwa sing'anga yokha mu payipi, yomwe ndi mtundu wa valve yokha. Valve yowunikira imagwiritsidwa ntchito pamapaipi, ndipo ntchito yake yayikulu ndikuletsa kuthamangitsidwa kwapakati, kuzungulira kwapampopi ndi mota yoyendetsa, komanso kutulutsa kwapakati pa chidebe. Ma valve owunika amagwiritsidwanso ntchito pamizere yomwe imapereka machitidwe othandizira pomwe kupanikizika kumatha kukwera pamwamba pa kukakamiza kwa dongosolo. Itha kugawidwa makamaka m'mitundu yogwedezeka (yozungulira molingana ndi pakati pa mphamvu yokoka) ndi mtundu wokweza (kusuntha mozungulira)