Ntchito yayikulu ya valavu ndiyodulidwa-kuzimitsa, kuwongolera, kusintha, kuletsa kuponderezana, chowongolera, shunt kapena kuchepetsa kupanikizika kwa kusefukira.
Vavu (famen) ndi zigawo za fluid control system, zomwe zimadulidwa-, regulation, diversion, kuteteza kauntala{1}}pano, voltage, shunt kapena overflow pressure relief ndi zina.
Mavavu a makina owongolera madzimadzi, kuyambira otseka-mavavu otsekera osavuta kupita ku mavavu ambiri ogwiritsiridwa ntchito m'makina osunthika kwambiri, amakhala mosiyanasiyana komanso makulidwe ake. Mavavu amatha kugwiritsidwa ntchito kuwongolera kutuluka kwamitundu yosiyanasiyana yamadzimadzi monga mpweya, madzi, nthunzi, zowononga zowononga, slurries, mafuta, zitsulo zamadzimadzi ndi ma radioactive media. Mavavu amagawidwanso kukhala mavavu achitsulo, mavavu achitsulo, mavavu zitsulo zosapanga dzimbiri (201,304,316, ndi zina zotero), mavavu achitsulo a chrome molybdenum, mavavu achitsulo a chrome molybdenum vanadium, duplex zitsulo, mavavu apulasitiki, -zinthu zokhazikika zamavavu .
Tanthauzo: Mu dongosolo lamadzimadzi, lomwe limagwiritsidwa ntchito kuwongolera njira yamadzimadzi, kuthamanga, chipangizo choyenda. Mavavu ndi zida zomwe zimalola kuyenda ndi kuyimitsa kwa media (zamadzimadzi, gasi, ufa) mu mapaipi ndi zida ndikuwongolera kutuluka kwawo. Mavavu amatha kugwiritsidwa ntchito kuwongolera kutuluka kwamitundu yosiyanasiyana yamadzimadzi monga mpweya, madzi, nthunzi, zowononga zowononga, slurries, mafuta, zitsulo zamadzimadzi ndi ma radioactive media. Vavu ndi gawo lowongolera mumayendedwe amadzimadzi a pipeline. Amagwiritsidwa ntchito kusinthira mtanda-gawo la ndimeyi ndi kayendedwe ka sing'anga. Vavu ili ndi ntchito za diversion, kudula-kuchotsa, kugwedeza, kuyang'ana, shunt kapena kuchepetsa kuthamanga kwa kusefukira. Kwa mavavu oletsa madzimadzi, kuchokera pa njira yosavuta yodulira{8}}yodulira kupita ku makina odziwikiratu otsogola kwambiri omwe amagwiritsidwa ntchito m'mavavu osiyanasiyana, kusiyanasiyana komanso kusiyanasiyana kwa mavavu adzina lake kuchokera ku kachipangizo kakang'ono kwambiri mpaka kumimba mwake kwa mavavu 10m Industrial piping. Valavu ingagwiritsidwe ntchito poyang'anira kutuluka kwa mitundu yosiyanasiyana yamadzimadzi monga madzi, nthunzi, mafuta, gasi, matope, zofalitsa zosiyanasiyana zowononga, zitsulo zamadzimadzi ndi ma radioactive fluid. Mphamvu yogwira ntchito ya valavu ingasiyane kuchokera pa 0.0013MPa kufika pa 1000MPa, kutentha kogwira ntchito Kuchokera pa -269 degrees ultra-kutsika kwa kutentha kufika madigiri 1430 kutentha kwambiri. Kuwongolera mavavu kungagwiritsidwe ntchito njira zosiyanasiyana zopatsirana, monga manual, magetsi, hydraulic, pneumatic, turbine, electromagnetic, electromagnetic, electro-hydraulic, pneumatic, spur gear, bevel gear drive, etc.; akhoza kukakamiza, kutentha Kapena mitundu ina ya zizindikiro zomveka, malinga ndi zomwe zinakonzedweratu, kapena musadalire chizindikiro chodzidzimutsa kuti chikhale chosavuta kutseguka kapena kutseka, valavu imadalira pagalimoto kapena makina opangira okha kuti kutsegula ndi kutseka zidutswa zokweza, kutsetsereka, kugwedezeka kapena kutembenuza Movement, potero kusintha kukula kwa malo ake otaya kuti akwaniritse ntchito zake zolamulira.
gulu
1. Molingana ndi udindo ndi gulu la zolinga
(1) Magulu odumphadumpha: monga valavu yachipata, valavu yapadziko lonse, valavu ya pulagi, valavu ya mpira, valavu ya butterfly, valve ya singano, valve diaphragm. Truncated valve, yomwe imadziwikanso kuti yotsekeka-vavu yozungulira, valavu ya globe, ntchito yake ndikulumikiza kapena kudula pakati pa mapaipi.
(2) -mtundu wosabwerera: Ngati valavu, valavu yoyang'anira, yomwe imadziwikanso kuti -vavu wanjira imodzi kapena valavu, valavu yoyang'anira ndi valavu yodzichitira yokha, ntchito yake ndikuletsa kubweza kwa mapaipi a media kuti aletse mpope ndi Kutembenuka kwa mota, komanso kutayikira kwa media. Pampu yamadzi kuchokera pansi pa valve imakhalanso m'gulu la valavu.
(3) Magawo achitetezo: monga valavu yachitetezo, valavu yoteteza kuphulika-vavu, valavu yangozi. Udindo wa valavu yotetezera ndikuletsa payipi kapena chipangizo muzofalitsa zofalitsa zomwe zimapitirira mtengo woperekedwa, kuti akwaniritse cholinga cha chitetezo.
(4) magawo amalamulo: monga valavu yowongolera, valavu yochepetsetsa komanso kupanikizika, ntchito yake ndikusintha kukakamiza kwa media, kuyenda ndi magawo ena.
(5) magulu otembenuzidwa: monga valavu yogawa, atatu-vavu yanjira, chisa cha nthunzi. Ntchito yake ndikugawa, kulekanitsa kapena kusakaniza sing'anga mu payipi.
(6) magulu a cholinga chapadera: monga valavu ya nkhumba, valavu yotulutsa mpweya, valavu yowonongeka, valavu yotulutsa mpweya, fyuluta ndi zina zotero. Dongosolo la mapaipi otulutsa ma valve ndi gawo lofunikira lothandizira, lomwe limagwiritsidwa ntchito kwambiri m'ma boilers, ma air conditioners, mafuta ndi gasi, madzi ndi mapaipi a ngalande. Nthawi zambiri amaikidwa pa mtunda wolamula kapena m'zigongono ndi malo ena, kusaganizira payipi owonjezera gasi, mapaipi kusintha dzuwa ndi kuchepetsa kugwiritsa ntchito mphamvu.
2. Kugawika kwamphamvu mwadzina
(1) Vacuum valve: imatanthawuza kuti kupanikizika kwa ntchito kumakhala kotsika kusiyana ndi mpweya wothamanga wa mumlengalenga.
(2) valavu yotsika: imatanthawuza kukakamiza mwadzina PN Kuchepera kapena kofanana ndi valavu ya 1.6Mpa.
(3) Vavu yapakatikati: imatanthawuza kuthamanga kwadzina kwa PN 2.5Mpa, 4.0Mpa, 6.4Mpa valavu.
(4) mkulu-vavu yopondereza: imatanthawuza kuthamanga kwa ntchito PN ndi 10.0Mpa ~ 80.0Mpa vavu.
(5) valve yothamanga kwambiri: imatanthawuza kuthamanga kwadzina PN Kuposa kapena kofanana ndi valavu ya 100.0Mpa.
(6) Fyuluta: amatanthauza kuthamanga mwadzina PN 1.0Mpa, 1.6Mpa valavu
3 ndi ntchito kutentha gulu
(1) valavu cryogenic: kwa sing'anga kutentha t<; - 101 ℃ valve.
(2) valavu ya cryogenic: kwa kutentha kwapakati -101 digiri Kuchepera kapena kufanana ndi t Pang'ono kapena mofanana ndi -29 digiri valve.
(3) valavu kutentha kwa chipinda: kutentha kwapakati -29 digiri
(4) mu valavu kutentha: kwa sing'anga kutentha 120 digiri Kuchepera kapena ofanana t Pang'ono kapena ofanana ndi 425 digiri vavu
(5) high temperature valve: for the medium temperature t>425 digiri valve.
4. Malinga ndi gulu la galimoto
Zosankhidwa potengera momwe amayendetsedwera zimagawidwa m'mavavu odzichitira okha, mavavu amphamvu-ndi mavavu apamanja:
(1) Valavu yodziyimira imatanthawuza kuti safunikira kuyendetsa kunja, koma kudalira mphamvu za media kuti mupange valavu yamagetsi. Monga valavu yotetezera, valavu yochepetsera kuthamanga, msampha wa nthunzi, valavu yowunika, valavu yodzilamulira yokha.
(2) Mphamvu-vavu yoyendetsedwa: Mphamvu-vavu yoyendetsedwa imatha kugwiritsa ntchito magwero osiyanasiyana amagetsi kuyendetsa. Amagawidwa mu mavavu amagetsi, ma valve pneumatic, ma hydraulic valves ndi zina zotero. Valve yamagetsi: yokhala ndi valavu yamagetsi yamagetsi. Vavu ya pneumatic: yokhala ndi valavu yoyendetsedwa ndi mpweya. Vavu ya Hydraulic: Mothandizidwa ndi mafuta ndi mphamvu ina yamadzimadzi-vavu yoyendetsedwa.
Kuphatikiza apo pali njira zingapo zoyendetsera zomwe zili pamwambapa, monga gasi - valavu yamagetsi.
(3) valavu yamanja: valavu yamanja yokhala ndi gudumu lamanja, chogwirira, lever, sprocket, ndi munthu kuti agwiritse ntchito valavu. Pamene mawotchi otsegula ndi kutseka akakula, giya kapena nyongolotsi yochepetsera mphutsi imatha kukhazikitsidwa pakati pa gudumu lamanja ndi tsinde. Ngati n'koyenera, mutha kugwiritsanso ntchito universal joint ndi shaft yoyendetsa mtunda wautali-.
5 molingana ndi kagawo kakang'ono kakang'ono
(1) valavu yaing'ono yaing'ono: DN yocheperapo kapena yofanana ndi valavu ya 40mm.
(2) m'mimba mwake valavu: Mwadzina awiri DN 50 ~ 300mm valavu.
(3) valavu lalikulu m'mimba mwake: Vavu mwadzina DN ndi 350 ~ 1200mm valavu.
(4) Vavu yokulirapo yokulirapo: m'mimba mwake mwadzina DN Wamkulu kuposa kapena wofanana ndi valavu ya 1400mm.
6. Malinga ndi mapangidwe a magulu
Mapangidwe a valavu amatengera kayendetsedwe ka kayendedwe ka kutseka kokhudzana ndi mpando wa valve akhoza kugawidwa mu:
(1) kudula{1}mafomu: kutseka kumasuntha pakati pa mpando wa valve; monga valavu
(2) tambala ndi ozungulira: kutseka ndi plunger kapena mpira, mozungulira mzere wake wapakati; monga mavavu a pulagi, mavavu a mpira
(3) Zipata: Kutseka kumasuntha pakati pa mpando woyima; monga valavu pachipata, chipata ndi zina zotero
(4) Yatsani-: zidutswa zotsekedwa mozungulira mpando kunja kwa mayendedwe ozungulira; monga swing{2}}mtundu wa cheki valavu
(5) gulugufe: kutsekedwa kwa chimbale, kuzungulira mpando mkati mwa kutsinde; monga valavu butterfly, valavu gulugufe, etc.
(6) Valavu yotsetsereka: Chidutswa chotseka chimayenda molunjika pandimeyo. Monga valavu yotsetsereka
7. Sanjani ndi njira yolumikizira
(1) valavu yolumikizira: Thupi lokhala ndi ulusi wamkati kapena wakunja, wolumikizidwa ndi chitoliro.
(2) valavu yolumikizana ndi flange: thupi lokhala ndi flange, kulumikizana kwa chitoliro.
(3) kuwotcherera valavu kugwirizana: thupi ndi kuwotcherera poyambira, ndi chitoliro kuwotcherera kugwirizana.
(4) valavu kugwirizana achepetsa: thupi ndi kopanira, ndi chitoliro achepetsa kugwirizana.
(5) valavu cholumikizira ferrule: chitoliro ndi chitoliro kugwirizana.
(6) pa chikwatu cholumikizidwa ndi valavu: Bolt molunjika ku valavu ndi malekezero awiri a chitoliro kudzera mufoda ndi mawonekedwe olumikizira.
8. Malinga ndi gulu la zinthu zakuthupi
(1) valavu yachitsulo: thupi ndi ziwalo zina zopangidwa ndi zitsulo. Monga mavavu achitsulo, mavavu achitsulo, mavavu azitsulo zamkuwa, mavavu amkuwa, mavavu a aluminiyamu, ma valve otsogolera, titaniyamu, mavavu a Monel.
(2) zinthu zosakhala-zachitsulo Vavu: thupi la mavavu ndi ziwalo zina zopangidwa ndi-zopanda zitsulo. Monga mavavu pulasitiki, mavavu enamel, mavavu ceramic, mavavu galasi zitsulo.
(3) valavu valavu thupi akalowa valavu: valavu thupi mawonekedwe ndi zitsulo, kukhudzana mkati ndi atolankhani kumene malo aakulu akalowa, monga akalowa valavu, akalowa valavu pulasitiki, valavu akalowa ndi zina zotero.
