Kodi mumadziwa bwanji za ma valve wamba? Ma valavu omwe amagwiritsidwa ntchito kwambiri ndi magetsi otenthetsera

Kodi mumadziwa bwanji za ma valve wamba? Ma valavu omwe amagwiritsidwa ntchito kwambiri ndi magetsi otenthetsera

BS 6364 valve yotsika kutentha
SHELL SPE 77/200 -50¡æ pansi pa valve
SHELL SPE 77/209 0 ~ -50¡æ valavu
Ma valavu omwe amagwiritsidwa ntchito kwambiri ndi magetsi otenthetsera
Pali mitundu yambiri ya mavavu ndi ntchito zosiyanasiyana. Mu payipi nthawi zina ndi zida zazikulu, zimagwira ntchito yolamulira; Nthawi zina ndi chipangizo chachiwiri ndipo chimagwira ntchito yothandiza. Ngati kugwiritsidwa ntchito molakwika, padzakhala "kuthamanga, kuyika, kudontha, kutayikira" zochitika, kuwala kumakhudza kupanga, ngozi zoyambitsa zoopsa. Choncho kumvetsetsa ndi kugwiritsa ntchito bwino ma valve ndi nkhani yofunika kwambiri.
1 Gulu la vavu
Pali mitundu yambiri ya ma valve omwe amagwiritsidwa ntchito potentha. Monga valavu pachipata, mavavu globe, valavu mpira, valavu gulugufe, valavu cheke, mavavu chitetezo, valavu zowongolera, mavavu kusinthasintha, mavavu kudziletsa kugwirizanitsa ndi zina zotero. Tiyeni tidutsemo mmodzimmodzi.
1.1 mavavu a zipata
Zomwe zimatchedwanso valve valve, valve valve, ndi mtundu wa valve wogwiritsidwa ntchito.

MFUNDO YOGWIRA NTCHITO: GATE yosindikiza nkhope ndi mpando wa valve wosindikiza nkhope kutalika kosalala, kosalala, kosasinthasintha, kukonzedwa kuti ikhale yokwanira kwambiri, yomata kwambiri. Kupyolera mmwamba ndi pansi pa tsinde la valve, chipata chimapanga conduction ndi shutdown ya sing'anga. Zimakhala ngati kutseka kwa payipi.

Ubwino: Low madzimadzi kukana; Malo osindikizira samakokoloka atatsegulidwa kwathunthu; Itha kugwiritsidwa ntchito ngati njira yodutsa njira ziwiri, palibe njira; Wamphamvu ndi wokhalitsa; Osati kokha oyenerera kupanga ma valve ang'onoang'ono, komanso amatha kupanga ma valve akuluakulu.
Zoipa: kutalika kwakukulu; Nthawi yayitali yotsegula ndi kutseka; Zolemera; Ndizovuta kukonza; Ngati ndi valavu yayikulu pachipata, ntchito yamanja ndiyovuta kwambiri.
Vavu yachipata molingana ndi mtundu wowoneka bwino wa ndodo ndi mtundu wa ndodo yakuda; Malinga ndi kapangidwe ka mbale ya pachipata, mtundu wofananira ndi mtundu wa wedge ndi wosiyana; Pali zipata imodzi, zipata ziwiri. M'makina otenthetsera, amagwiritsidwa ntchito potsegula ndodo yamtundu umodzi wa chipata (Z41H-16C) ndi valavu yakuda yamtundu umodzi wa chipata (Z45T-10), yoyambayo imayikidwa kumbali yoyamba ya malo otentha, otsiriza. imayikidwa mu gawo lachiwiri la malo otentha. Nthawi zambiri imakhala ndi maudindo awiri: ngati chosinthira pazida zazikulu; Monga zida wothandiza anaika isanayambe ndi itatha waukulu zida yokonza.
Pamene valavu yachipata imayikidwa, musapangire gudumu lamanja pansi pa mzere wopingasa (wotembenuzidwa), mwinamwake sing'anga idzasungidwa mu chivundikiro cha valve kwa nthawi yaitali, mosavuta kuwononga tsinde. M'makina otenthetsera, valavu yachipata imagwiritsidwa ntchito kukhala mphamvu yayikulu mu valve. Tsopano ndi kukhazikitsidwa kwa ma valve a butterfly, ma valve a zipata asinthidwa ndi ma valve a butterfly.
1.2 valve yoyimitsa
Ndi mtundu wa valve womwe umagwiritsidwa ntchito. General caliber ndi pansi pa 100mm. Imagwira NTCHITO NGATI VAVU YA GATE KUPOKERA KUTI SHUTOFF (DISC) AMAYENDERA PAKATI PA Mzere WA MPANDO. Zimagwira ntchito potseka payipi, zimatha kusintha kayendedwe kake.
Ubwino wake: Zosavuta kupanga, zosavuta kuzisamalira, zamphamvu komanso zolimba.
Zoyipa: Njira imodzi yokha yolumikizira media ndiyololedwa, yolunjika ikayikidwa. Kukana kwakukulu kothamanga, kusasindikiza bwino.

Malingana ndi mapangidwe a mfundo zosiyana mtundu wowongoka, mtundu wa Angle yoyenera, kuyenda molunjika, mtundu woyenerera. Flange yowongoka (J41H) ndi ulusi wamkati wowongoka (J11H) nthawi zambiri amagwiritsidwa ntchito muukadaulo. Valavu ya Globe ndiyolunjika, siyingapanikizidwe kumbuyo. Siziyenera kutembenuzidwa.
Pakupanga kwathu, moyo, wakale womwe umagwiritsidwa ntchito molunjika, valavu yaying'ono yapadziko lonse lapansi, tsopano yasinthidwa pang'onopang'ono ndi valavu ya mpira.
1.3 valavu ya mpira
Poyerekeza ndi valavu yachipata ndi valavu ya globe, valve ya mpira ndi mtundu watsopano wa valve womwe watengedwa pang'onopang'ono. Mfundo yake yogwira ntchito ndi: spool ndi mpira wokhala ndi phokoso, ndipo spool imazungulira 90¡ã kupyolera mu tsinde la valve kuti valavu isatsekeke kapena kutsekedwa. Imakhala ngati kutseka kwa payipi.
Ubwino: Kuphatikiza pa zabwino za valve yachipata ndi valavu yapadziko lonse lapansi, pali voliyumu yaying'ono, kusindikiza bwino (zero leak), yosavuta kugwiritsa ntchito zabwino zake. Pakalipano, amagwiritsidwa ntchito mu petrochemical, mphamvu yamagetsi, mphamvu ya nyukiliya, ndege, zamlengalenga ndi zina.
Zoipa: Zovuta kusunga.
Mavavu a mpira ali ndi mitundu iwiri: mtundu wa mpira woyandama ndi mtundu wa mpira wokhazikika. M'makina otenthetsera, malo ena ofunikira, monga nthambi zofunika, kuchuluka kwa malo otenthetsera kutentha, DN250 pansipa, nthawi zambiri amatenga ma valve a mpira ochokera kunja. Ndi yosiyana ndi dongosolo la zoweta valavu mpira: zoweta mpira valavu thupi zambiri zidutswa ziwiri, zidutswa zitatu, flange kugwirizana; Thupi la valavu la valve yolowetsa mpira likuphatikizidwa, kugwirizana kwa welded, vuto ndilochepa. Chiyambi chake ndi Nordic monga Finland, Denmark ndi ukadaulo wina wotenthetsera maiko otukuka kwambiri. Mwachitsanzo, NAVAL,VEXVE wochokera ku Finland, DAFOSS wochokera ku Denmark, ndi zina zotero. Mavavu a mpira sali olunjika ndipo amatha kukhazikitsidwa pa ngodya iliyonse. Kuwotcherera mpira valavu yopingasa unsembe, valavu ayenera kutsegulidwa, kupewa kuwotcherera pamene magetsi phokoso kuvulala ndi pamwamba mpira; AKAIKWA MU VERTICAL PIPING, vavu IFYA KUSUKULUDWA NGATI Cholumikizira Chapamwamba chitawotcherera ndi kutsekedwa NGATI CHONKHANITSA CHOTSITSA CHOPITA KUPEWA KUTENGA KWAKUCHULUKA MKATI PA valve.
1.4 valavu ya butterfly
Mu Kutentha dongosolo, panopa ntchito, mitundu yambiri ya valavu.
Mfundo yogwira ntchito: Diskiyo ndi diski, kupyolera mu kuzungulira kwa tsinde, chimbale chomwe chili pampando wa 90¡æ kuzungulira, kuti muzindikire kusintha kwa valve. Imakhala ngati kutseka kwa payipi.
Ikhozanso kusintha kayendedwe ka kayendedwe kake.
Ubwino: Mapangidwe osavuta, voliyumu yopepuka, ntchito yosavuta, kusindikiza bwino.
Zoipa: ikatsegulidwa kwathunthu, mbale ya valve (mphete yosindikizira) imaphwanyidwa ndi sing'anga.
Muukadaulo wotenthetsera, valavu yagulugufe ili ndi valavu yagulugufe yazitsulo zitatu, valavu yagulugufe yofewa.
1.4.1 Valavu yagulugufe yosindikizira katatu yachitsulo
Zomwe zimatchedwa "eccentricity zitatu" zimatanthawuza shaft ya valve, mbale ya valve mu malo ogwirizana a valve. Wamba gulugufe valavu ndi eccentric, ndiye valavu shaft pakati mzere ndi kusindikiza pamwamba mzere pakati (vavu mbale mbale pakati mzere) kupatuka; Kuti muchite bwino, yonjezerani eccentricity, ndiko kuti, mzere wapakati wa shaft valve umachoka pakati pa mzere wa valve (pakati pa chitoliro); Cholinga cha kuwirikiza kawiri ndikuchotsa zisindikizo kuchokera kwa wina ndi mzake pambuyo poti mbale ya valve itsegulidwe ku 20¡ã, potero kuchepetsa kukangana (CAM effect). Atatu eccentric gulugufe valavu pamwamba pawiri eccentric pamaziko a kuwonjezera wapadera eccentric - oblique chulucho, ndiko kuti, kuchotsa mbale valavu (chisindikizo pamwamba ndi chitoliro ofukula ndege kupendekeka ndi ngodya). Izi zimapangitsa valavu mu 90¡ã maulendo oyendayenda, kulekanitsa kwathunthu pakati pa kusindikiza, osati kulimbitsa mphamvu ya CAM, komanso kuthetsa mkangano; Tsekani valavu panthawi imodzimodziyo, pamene chisindikizocho chinatsekedwa pang'onopang'ono, "mphepo yam'mphepete", ndi torque yaing'ono kuti mukwaniritse zolimba kwambiri.

Zomwe zimatchedwa "chisindikizo chachitsulo" zimatanthawuza mpando wa valve, mphete yosindikizira pogwiritsa ntchito kukana kuvala, kukana kwa dzimbiri, kukana kwa kutentha kwa alloy khalidwe; Pa nthawi yomweyo pofuna kupewa mphete yosindikizira ndi mpando molimba, awiri osindikizira amapangidwa kuti azikhala osinthasintha, omwe ndi mapangidwe a "elastic metal seal", kuti atsimikizire kutseka molimba, kutseguka popanda frictionless. Ndi mawonekedwe a "eccentric atatu", kuphatikizapo "elastic metal seal", ma valve oterowo ndi osavuta kugwiritsa ntchito, okhazikika komanso osindikizidwa bwino.
Mavavu atatu agulugufe osindikizira zitsulo amagwiritsidwa ntchito potenthetsera mzere waukulu ndi nthambi yayikulu. Caliber DN300 kapena pamwamba.
Mavavu agulugufe omwe amatumizidwa kunja alibe njira, koma nthawi zambiri amalangizidwa kuti akhazikike, sayenera kusinthidwa; Kuwongolera kwapakhomo, kusinthika kwapang'onopang'ono kuposa kusiyana kwapatsogolo kwa mulingo wotayikira kapena milingo imodzi kapena iwiri, sikungasinthidwe. Ngati kuwotcherera pa chitoliro chopingasa, valavu iyenera kutsekedwa kuteteza mphete yosindikizira; Pankhani ya kuwotcherera kwa VERTICAL, valavu iyenera kutsekedwa ndipo madzi ayenera kuwonjezeredwa ku mbale ya valve panthawi yowotcherera kuti azimitsa kuwotcherera slag. Mukayikidwa pa chitoliro cha HORIZONTAL, tikulimbikitsidwa kuti malo a tsinde atsatidwe molunjika kapena molunjika kuti atsimikizire kuti pansi ndi koyera.
1.4.2 Vavu yagulugufe yofewa yosindikizira labala
Mbale yagulugufe nthawi zambiri imakhala yokutidwa ndi chitsulo cha nodular cast, ndipo mphete yosindikizira ndi mphira. Zida zosindikizira zomwe zimagwiritsidwa ntchito ndizosiyana, machitidwe ake ndi osiyana. Zomwe zimagwiritsidwa ntchito nthawi zambiri ndi: Dingqing rabara, kutentha kwapadera kwa 12¡æ a +82¡æ; Ethylene propylene rabara, kutentha koyenera ndi 45¡æ a +135¡æ; Rabara ya ethylene propylene yosamva kutentha, yoyenera kutentha kwa 20¡æ +150¡æ.
Kuwotcha zomangamanga zomwe zimagwiritsidwa ntchito mu sangweji (D371X), flange (D341X). DN125 pansipa zilipo chogwirira pagalimoto (D71, D41X). Valve ya butterfly yaing'ono ndi yaying'ono komanso yopepuka, yotsegula mwachangu ndi kutseka, yosavuta kugwiritsa ntchito, yosavuta kuyiyika, yosavuta kuyisamalira, kusindikiza bwino ndikusintha magwiridwe antchito, ntchito yotsika mtengo, kotero iyenera kulandiridwa mwamphamvu. Vavu yagulugufe yofewa ilibe njira, imatha kukhazikitsidwa mosasamala.
Vavu yagulugufe ikasungidwa, mbale ya valve iyenera kutsegulidwa 4¡ã mpaka 5¡ã. Pofuna kupewa kuponderezedwa kwa nthawi yayitali ndi kusinthika kwa mphete yosindikiza, zomwe zimakhudza chisindikizo.
1.5 valve yowunikira
Imatchedwanso cheke valavu, khomo loyenda limodzi. Valve yothandiza yomwe imagwiritsidwa ntchito kwambiri.
Mfundo yogwira ntchito: Kutengera mphamvu yamadzimadzi yokha komanso kulemera kwa diski, valavu imatsegula ndikutseka. Monga momwe dzinalo likusonyezera, ntchito yake ndikuletsa sing'anga kuti isabwererenso. Amayikidwa pa mpope kuti ateteze kuwonongeka kwa nyundo yamadzi pampopi.
Zomwe zimagwiritsidwa ntchito popanga uinjiniya wotenthetsera ndi mtundu wokweza wopingasa (H41H), mtundu wa valve imodzi (H44H), mtundu wagulugufe wamitundu iwiri (H77H).
Valovu yoyang'ana ndi yolunjika ndipo singayike kumbuyo. Mitundu yosiyanasiyana ya ma cheke ma valve, malinga ndi kapangidwe kawo, imakhala ndi kukhazikitsa kokhazikika, sayenera kuyikidwa molakwika. Mtundu wonyamulira wopingasa ukhoza kukhazikitsidwa mu payipi yopingasa, ndikuwonetsetsa kuti diski ya valve ili pamtunda; Single disc swing mtundu ukhoza kukhazikitsidwa mu payipi yopingasa, ndikuwonetsetsa kuti shaft ya disc ili m'malo opingasa; Agulugufe amitundu iwiri amatha kukhazikitsidwa mosasamala.
1.6 Woyang'anira
Komanso amatchedwa throttle valve. Ndi valavu wamba kwa yachiwiri Kutentha dongosolo.

Mfundo yogwirira ntchito: mawonekedwe, mawonekedwe ndi ma valve oyimitsa ofanana. Chokhachokha chosindikizira ndi chosiyana, diski ya valve ndi mpando wofanana ndi botolo la botolo la thermos ndi pakamwa pa botolo, kupyolera mu kayendedwe ka valve disc kuti asinthe malo othamanga kuti ayendetse kuyenda. Wolamulira pa shaft ya valve akuwonetsa kuthamanga kofananira.
Ntchito: Sinthani kugawa kwapakati pakati pa mapaipi kuti mukwaniritse kutentha.
Ukadaulo wowotchera unkadutsa mowongoka (T41H), koma uli ndi zovuta zina: kukana kuthamanga kwambiri, osati kuyika moyima. Choncho ndi kupita patsogolo kwa teknoloji, valve balance (PH45F) m'malo mowongolera valve.
1.7 valve yokwanira
Valavu yowongolera yamtundu wabwino. Njira yoyendetsera imatengera kuyenda molunjika, mpando umasinthidwa kukhala PTFE; Imagonjetsa kuipa kwa kukana kwakukulu koyenda ndikuwonjezera zabwino ziwiri: kusindikiza koyenera komanso ntchito ya cutoff.
Amagwiritsidwa ntchito mu network yachiwiri ya station yotenthetsera pakuwotchera mainjiniya, ndipo ali ndi mawonekedwe abwino kwambiri oyendetsera kayendetsedwe kake, makamaka oyenera pamayendedwe osinthasintha.
Ndi yolunjika ndipo imatha kukwezedwa mopingasa kapena molunjika.
1.8 Vavu yodziyimira payokha
Amatchedwanso flow control valve. Mfundo yake yogwira ntchito ndi: mu valve pali filimu ya kasupe ndi mphira yopangidwa ndi makina, imagwirizanitsidwa ndi tsinde. NGATI MALO OYAMBIRA AKUCHULUKA, KUKHALA KWAMBIRI KUDZAPANGIDWA PAMENEYO, KUPANGA DISC KUYAMBIRA MALO Otsekedwa KUTI KUCHEPETSA MALO OGWIRITSA NTCHITO, KUCHEPETSA NTCHITO, NDIPONSO KUBWERETSA NTCHITO YOTSATIRA PAMODZI YOKHA. Ndipo mosemphanitsa. Choncho, kuthamanga kwa valve pambuyo pa valavu nthawi zonse kumakhala kosasinthika kuti akwaniritse cholinga chowongolera kuthamanga.
Amayikidwa muzotenthetsera panthambi ya anthu otentha. Kuchotseratu kusagwirizana kwa hydraulic, kukonza magwiridwe antchito, kukwaniritsa ntchito zachuma. Self- balancing valve directional, musayike mobwerera.

Kuonjezera apo, pali kuwonongeka kwa chilengedwe ndi chitetezo cha valve, zowonongeka ndi chitetezo chapakati pa valve, kutentha ndi kupanikizika ndi kusindikiza ndi kutulutsa mavuto ndi zina zotero. Mwachidule, ngakhale valavu ndi yaying'ono, chidziwitso ndi chachikulu, kuyembekezera kuti tipitirize kuphunzira ndi kufotokoza mwachidule.