Kufunika kwa ma valve pakupanga mapaipi ukadaulo wotumiza madzi wa Pipeline
M'mapaipi amadzimadzi, ma valve ndi zinthu zowongolera zomwe ntchito yake yayikulu ndikupatula zida ndi mapaipi, kuwongolera kutuluka, kuteteza kubweza, kuwongolera ndi kutulutsa kuthamanga. Chifukwa dongosolo la mapaipi kusankha valavu yoyenera ndilofunika kwambiri, kotero, kumvetsetsa makhalidwe a valve ndi kusankha masitepe a valve ndi maziko kumakhalanso kofunikira. Kufunika kwa ma valve pakupanga mapaipi..
M'mapaipi amadzimadzi, ma valve ndi zinthu zowongolera zomwe ntchito yake yayikulu ndikupatula zida ndi mapaipi, kuwongolera kutuluka, kuteteza kubweza, kuwongolera ndi kutulutsa kuthamanga. Chifukwa njira yopangira mapaipi kusankha valavu yoyenera kwambiri ndiyofunikira kwambiri, kotero, kumvetsetsa mawonekedwe a valavu ndi kusankha masitepe a valve ndi maziko kumakhalanso kofunikira.
Kufunika kwa ma valve pakupanga mapaipi
1. Makhalidwe a vavu nthawi zambiri amakhala amitundu iwiri, mawonekedwe autumiki ndi mawonekedwe ake.
Makhalidwe ogwiritsira ntchito: amatsimikizira kugwiritsidwa ntchito kwakukulu kwa ntchito ya valve ndi ntchito zosiyanasiyana, zomwe zimakhala ndi machitidwe ogwiritsira ntchito ma valve ndi: gulu la valve (valavu yotsekedwa, valve yoyendetsa, valavu yotetezera, etc.); Mtundu wa mankhwala (valavu yachipata, valavu yapadziko lonse lapansi, valavu yagulugufe, valavu ya mpira, etc.); Zigawo zazikulu za valve (thupi la valve, chivundikiro, tsinde, disc, kusindikiza pamwamba) zakuthupi; Vavu kufala mode, etc. Structural makhalidwe: chimachititsa unsembe wa valavu, kukonza, kukonza ndi njira zina za makhalidwe structural, wa makhalidwe structural ndi: structural kutalika kwa valavu ndi kutalika wonse, ndi kugwirizana chitoliro. mawonekedwe (kulumikizana kwa flange, kulumikizana kwa ulusi, kulumikizana kwa hoop, kulumikizana kwa ulusi wakunja, kulumikizana kowotcherera, etc.); Mawonekedwe osindikizira pamwamba (ikani mphete, mphete ya ulusi, pamwamba, kuwotcherera kutsitsi, thupi la thupi); Maonekedwe a tsinde la valve (ndodo yozungulira, ndodo yonyamulira), etc.
2. Masitepe ndi maziko a kusankha ma valve ndi awa:
⑴ Zosankha
Valavu yoyera mu zida kapena kugwiritsa ntchito chipangizo, dziwani momwe ma valve amagwirira ntchito: sing'anga yoyenera, kupanikizika kogwira ntchito, kutentha kwa ntchito ndi zina zotero.
(2) Dziwani kukula kwadzina ndi njira yolumikizira chitoliro cholumikizira ndi valavu: flange, ulusi, kuwotcherera, etc.
(3) Dziwani njira yogwiritsira ntchito valve: manual, magetsi, electromagnetic, pneumatic kapena hydraulic, magetsi ogwirizanitsa kapena electro-hydraulic linkage.
④ Malinga ndi sing'anga kufala mapaipi, kuthamanga ntchito, kutentha ntchito kudziwa anasankha vavu chipolopolo ndi mbali zamkati za zinthu: imvi kuponyedwa chitsulo, malleable kuponyedwa chitsulo, ductile chitsulo, mpweya zitsulo, aloyi chitsulo, zosapanga dzimbiri asidi zosagwira chitsulo, mkuwa. aloyi, etc.
⑤ Sankhani mtundu wa valavu: valavu yotsekedwa, valve yoyendetsa, valavu yotetezera, ndi zina zotero.
⑥ Dziwani mtundu wa valavu: valavu yachipata, valavu yapadziko lonse lapansi, valavu ya mpira, valavu yagulugufe, valavu yotsekemera, valavu yotetezera, valavu yochepetsera kuthamanga, msampha wa nthunzi, etc.
Dziwani magawo a valavu: kwa valavu basi, malinga ndi zosowa zosiyanasiyana kudziwa otaya kukana, kutulutsa mphamvu, kuthamanga kumbuyo, ndiyeno kudziwa awiri mwadzina wa payipi ndi awiri a dzenje mpando.
⑧ kudziwa magawo osankhidwa a geometric a valavu: kutalika kwa kapangidwe, mawonekedwe a kugwirizana kwa flange ndi kukula, kutseguka ndi kutseka pambuyo pa kutalika kwa valavu ya kukula, kugwirizana kwa dzenje la bolt ndi nambala, kukula kwa mawonekedwe a valve.
⑨ Gwiritsani ntchito zomwe zilipo: kalozera wazinthu zama valve, zitsanzo zama valve, ndi zina zambiri, kusankha ma valve oyenera.
Maziko osankha valavu
(1) kugwiritsa ntchito valavu yosankhidwa, zochitika zogwirira ntchito ndi njira yolamulira.
(2) Chikhalidwe cha sing'anga ntchito: kuthamanga ntchito, kutentha ntchito, dzimbiri ntchito, kaya lili ndi particles olimba, kaya sing'anga ndi poizoni, kaya ndi kuyaka, sing'anga kuphulika, sing'anga mamasukidwe akayendedwe ndi zina zotero.
③ Zofunikira za mawonekedwe amadzimadzi a valve: kukana kwamadzi, kutulutsa mphamvu, mawonekedwe otaya, kusindikiza kalasi ndi zina zotero.
(4) Kukula kwa kuyika ndi kukula kwa mawonekedwe: m'mimba mwake mwadzina, kugwirizana ndi chitoliro ndi kukula kwa kugwirizana, kukula kwa maonekedwe kapena kulemera kwake.
⑤ Zofunikira zowonjezera pa kudalirika kwa zinthu za valve, moyo wautumiki ndi kuphulika kwa zida zamagetsi. Malingana ndi kusankhidwa kwapamwamba kwa ma valve ndi masitepe, kusankha koyenera komanso kolondola kwa valve kuyeneranso kumvetsetsa mwatsatanetsatane kapangidwe kake ka mkati mwa mitundu yosiyanasiyana ya ma valve, kuti athe kusankha mwapadera valavu kuti apange chisankho choyenera. Ulamuliro waukulu wa payipi ndi valavu. Kutsegula ndi kutseka kwa ma valve kumayang'anira kutuluka kwa media mu payipi, mawonekedwe a valve otaya njira amathandiza valavu kukhala ndi makhalidwe ena otaya, omwe ayenera kuganiziridwa posankha valavu yoyenera kuyika mu dongosolo la payipi.
Zotsatirazi ndizo mfundo zomwe ziyenera kutsatiridwa posankha ma valve
(1) Valve yokhala ndi njira yodulira komanso yotseguka yapakati ndi valavu yowongoka, kukana koyenda kumakhala kochepa, nthawi zambiri kumasankhidwa ngati valavu yokhala ndi sing'anga yodula komanso yotseguka. Valavu yotsekera pansi (valavu yapadziko lonse lapansi, valavu ya plunger) chifukwa cha njira yake yoyenda movutikira, kukana koyenda ndikwapamwamba kuposa ma valve ena, osasankhidwa pang'ono. Ma valve otsekedwa angagwiritsidwe ntchito pamene kukana kwakukulu kumaloledwa.
Chiwombankhanga chowongolera nthawi zambiri chimakhala chosavuta kusintha kayendedwe ka valve monga kayendetsedwe ka kayendetsedwe kake. Ma valve otsekera pansi (monga ma valve a GLOBE) NDI WOYENERA KUCHIFUKWA CHIFUKWA CHIFUKWA MPAndo waukulu ndi wofanana ndi STROKE YA SHUTOFF. MAVAVU A Rotary (PLUG, butterfly, BALL valves) ndi FLEXURE BODY VALVES (PINCH, DIAPHRAGM) ALIPONSO KUTI THROTTLING CONTROL, koma KAWIRIKAWIRI PAMENE WOKHALA WA VAVU DIAMETERS. Chipata VALVE NDI chipata chopangidwa ndi chimbale chopita ku doko la mpando wozungulira kuti muyende modutsa, pokhapokha pafupi ndi malo otsekedwa, amatha kuyendetsa bwino kutuluka, kotero nthawi zambiri sagwiritsidwa ntchito poyendetsa kayendedwe.
⑶ Vavu yokhala ndi shunt yobwerera molingana ndi kufunikira kwa shunt, valavu iyi imatha kukhala ndi njira zitatu kapena kupitilira apo. Mavavu a pulagi ndi mpira ndi oyenera kwambiri pazifukwa izi, chifukwa chake, mavavu ambiri omwe amagwiritsidwa ntchito potembenuza ndi kupatutsa amasankhidwa ngati amodzi mwa ma valve awa. Komabe, MWINA, MITUNDU ENA YA MAVAVU ANGAGWIRITSIDWENSO MONGA NTCHITO ZONSE ZOPHUNZITSA, NGATI MAVAVU AWIRI KAPENA AMBIRI AMALUMIKIZANA bwino.
⑷ Vavu yokhala ndi tinthu tating'onoting'ono tokhala ndi tinthu tating'onoting'ono mkati, ** ndiyoyenera kugwiritsa ntchito magawo otsekera pambali yosindikiza pamwamba pa valavu yotsetsereka ndikupukuta. Ngati KUSIMIDWA KULI WOYIRIRA KUMUSYO NDI KUPITA KWA MPANDO, ZINTHU ZINTHU ZITHA KUKOLEDWA, CHOTI VALVU IYI NDI YOBWERA KWA MEDIA ZOYENEKEDWA KOPANDA CHIZINDIKIRO CHODINDIKIRA CHOLOLERA KUTI TITHU ZIZIGWIRITSA NTCHITO. Mavavu a mpira ndi mavavu a pulagi amapukuta kusindikiza pamwamba pakutsegula ndi kutseka, kotero ndi oyenera kugwiritsidwa ntchito pazofalitsa ndi particles zoyimitsidwa. Pakalipano, kaya ndi mafuta, makampani opanga mankhwala, kapena m'mafakitale ena a mapaipi, kugwiritsa ntchito ma valve, maulendo a ntchito ndi ntchito zikusintha, kulamulira kapena kuthetsa ngakhale kutsika kochepa, zipangizo zofunika ndi zofunikira ndizo chiwerengero cha ma valve. Kuwongolera kwakukulu kwa payipi ndi valavu, valavu m'madera onse a ntchito ndi ntchito yodalirika ndi.
Ukadaulo wotumizira madzi papaipi Kutumiza kwamadzi kwapaipi kuli ndi zabwino zopulumutsa madzi, kupulumutsa mphamvu, kupulumutsa nthaka, kuthamanga kwamadzi othamanga, madzi anthawi yake, komanso yabwino kugwiritsa ntchito makina am'munda. Ukadaulo wopatsira madzi papaipi ukhoza kugawidwa muukadaulo wopatsira madzi wapaipi wocheperako m'dera lothirira bwino komanso ukadaulo wapaipi yotumizira madzi m'dera lothirira ngalande malinga ndi momwe magwero amadzi amakhalira.
Ukadaulo wotsitsa wamapaipi otengera madzi m'dera lothirira bwino
Dera la njira yoperekera mapaipi otsika ndi madzi (shaft), netiweki ya mapaipi otumizira madzi ndi potulutsira magawo atatu pakadali pano yapanga njira yaukadaulo yokhwima yogwirizana ndi momwe dziko la China likuyendera. M'tsogolomu, chinsinsi chowongolera ndi kukhazikika, kukhazikika, kusanja kwa zinthu zopangira chitoliro ndikugwiritsa ntchito njira yothandizira munda wa thyristor.
Ukadaulo wotumizira madzi papaipi m'dera lothirira ngalande
Dongosolo lamadzi am'dera lothirira ngalande lili ndi mawonekedwe akuyenda kwakukulu, magawo ambiri adongosolo komanso zovuta zama hydraulic. Kutchuka kwake komanso kugwiritsa ntchito kwake kudakali koyendetsa ndege ku China, ndipo ili ndi kuthekera kwakukulu kwachitukuko. M'tsogolomu, tiyenera kutenga chitukuko ndi kupanga mipope ikuluikulu ndi khalidwe otsika monga yotulukira, mwamphamvu kuchita Kukwezeleza ndi ntchito kafukufuku, ndi kupanga okhwima kuthandiza dongosolo luso kaphatikizidwe kukonzekera ndi kamangidwe, kusankha mipope ndi zovekera, luso la zomangamanga ndi kasamalidwe ka ntchito.
Soft thyristor system
Thyristor yofewa imapangidwa ndi pulasitiki, mphira kapena nsalu ndi zipangizo zina. Ili ndi ubwino wa mtengo wotsika komanso kugwiritsa ntchito kosavuta, koma moyo wake wautumiki ndi waufupi.
Hard thyristor system
Ma thyristors olimba amapangidwa ndi mapaipi a PVC kapena aluminiyamu, okhala ndi zolumikizira mwachangu, ndipo amatha kusonkhanitsidwa m'munda molingana ndi mizere. Poyerekeza ndi dongosolo la thyristor lofewa, moyo wautumiki ndi wautali, koma mtengo wake ndi wokwera kwambiri.
Nthawi yotumiza: Sep-23-2022
