ductile hlau khoom npauj npaim valve

Victaulic OEM thiab Marine Services Tus Lwm Thawj Coj Didier Vassal piv flange thiab grooved yeeb nkab sib txuas txoj kev thiab piav qhia qhov zoo ntawm grooved yeeb nkab pob qij txha ntawm flanges. Cov kav dej ua haujlwm tau zoo yog qhov tseem ceeb rau ntau yam kev pabcuam uas xav tau ntawm cov nkoj, suav nrog cov tshuab nruab nrab xws li bilge thiab ballast systems, dej hiav txwv thiab dej tshiab txias, lubricating roj, tiv thaiv hluav taws thiab ntxuav lub lawj. Rau cov tshuab no, qhov twg cov raj xa dej tso cai, qhov kev sib txuas zoo ntawm cov yeeb nkab txuas rau vuam / flanging yog kev siv cov khoom siv sib txuas ua ke, uas muab cov txiaj ntsig zoo, kev lag luam thiab cov tswv yim zoo. Cov no suav nrog kev txhim kho kev ua tau zoo; sai thiab yooj yim installation thiab txij nkawm thiab txo qhov hnyav ntawm lub nkoj. Cov teeb meem kev ua tau zoo Hauv flanged yeeb nkab pob qij txha, ob lub mating flanges yog bolted ua ke thiab lub gasket yog compressed los tsim ib lub foob. Raws li cov bolts thiab txiv ntseej ntawm flange sib koom nqus thiab them nyiaj rau lub zog quab yuam, lub sijhawm ntev, cov bolts thiab txiv ntseej yuav ncab thiab poob lawv qhov qub nruj vim qhov kev hloov pauv, lub zog ua haujlwm siab, kev co, thiab thermal expansion thiab contraction. Thaum cov bolts muaj torque so, lub gasket yuav poob nws compression foob, uas tuaj yeem ua rau muaj kev sib txawv ntawm cov dej ntws. Nyob ntawm qhov chaw thiab kev ua haujlwm ntawm cov kav dej, cov dej xau tuaj yeem raug nqi thiab txaus ntshai, ua rau kev saib xyuas / kho lub sijhawm poob thiab kev pheej hmoo. Lub gasket yuav tsum tau hloov thaum disassembled lub sib koom tes, vim hais tias dhau sij hawm, lub gasket yuav ua raws li lub flange nto. Thaum disassembling qhov sib koom ua ke, cov gaskets yuav tsum tau muab tshem tawm ntawm ob qhov chaw flange, thiab cov chaw no yuav tsum tau ntxuav kom huv ua ntej hloov cov gaskets, rov ua kom lub sijhawm tu ncua. Vim yog lub zog sib txuas thiab kev nthuav dav thiab kev cog lus ntawm lub kaw lus, lub flange gasket tseem yuav tsim compression "deformation" nyob rau lub sijhawm, uas yog lwm qhov ua rau to. Kev tsim ntawm slotted mechanical yeeb nkab pob qij txha kov yeej cov teeb meem kev ua tau zoo. Ua ntej, ib tug zawj yog tsim nyob rau hauv lub kawg ntawm cov yeeb nkab, thiab cov yeeb nkab kev twb kev txuas yog tsau los ntawm ib tug sib koom ua ke, thiab ib tug elastic, siab teb elastomer gasket yog ntsia nyob rau hauv lub sib koom tes. Lub coupling vaj tse nyob ib ncig ntawm lub gasket, ntxiv dag zog rau lub foob thiab tuav nws nyob rau hauv qhov chaw, vim hais tias cov coupling koom thiab tsim ib tug txhim khu kev qha interlock nyob rau hauv cov yeeb nkab zawj. Kev sib txuas thev naus laus zis tshiab no tso cai rau cov kav dej mus txog 24 ntiv tes (600 mm) hauv txoj kab uas hla tuaj yeem sib sau ua ke nrog tsuas yog ob lub txiv ntoo thiab bolts kom ruaj ntseg cov pob qij txha ntawm tus kheej. Vim yog tsim kev sib raug zoo ntawm cov kav dej, gaskets, thiab vaj tse, cov neeg kho tshuab cov pob qij txha tsim ib lub foob triple. Qhov kev sib raug zoo no yuav muaj zog ntxiv thaum lub kaw lus raug thawb. Rigid thiab saj zawg zog pob qij txha muaj nyob rau hauv ob hom: nruj thiab saj zawg zog. Groove mechanical yeeb nkab pob qij txha tau dhau qhov kev faib tawm hauv zej zog hom ntawv pov thawj thiab tuaj yeem hloov vuam / flange kev sib txuas hauv 30 lub tshuab, nyob ntawm cov qauv kev teeb tsa los ntawm txhua lub cev ntawv pov thawj. Piv txwv li, siv cov couplings nruj nyob ib ncig ntawm thaj chaw xws li manifolds thiab li qub, uas lawv yooj yim nkag mus thiab hloov dua li flanges. Vim nws qhov kev tsim, cov couplings nruj kuj muab axial thiab radial nruj piv rau flanges lossis welded pob qij txha. Ntxiv nrog rau cov yeeb nkab txav los ntawm thermal expansion lossis kev co, cov pob qij txha hloov tau muaj qhov zoo hauv cov ntawv thov uas muaj kev sib txheeb ntawm cov yeeb nkab thiab cov qauv txhawb nqa. Kev nthuav dav thiab kev cog lus tso siab rau ntawm flanges thiab cov kav dej, uas dhau sijhawm tuaj yeem ua rau lub gasket puas. Thaum qhov no tshwm sim, muaj kev pheej hmoo ntawm kev xau hauv cov pob qij txha. Qhov zawj-hom hloov tau yooj yim txuas tuaj yeem hloov mus rau cov yeeb nkab hloov pauv hauv daim ntawv ntawm axial txav los yog angular deflection. Vim li no, lawv zoo heev rau kev txhim kho cov kav dej ntev, tshwj xeeb tshaj yog nyob nruab nrab ntawm cov blocks. Cov dej hiav txwv siab tuaj yeem ua rau flanges kom xoob lub sijhawm, ua rau muaj kev pheej hmoo ntawm kev xau thiab cov kav dej sib cais. Rigid thiab saj zawg zog couplings kuj muaj qhov zoo ntawm cov suab nrov txo thiab kev vibration txo, tsis tas yuav tsum tau tshwj xeeb cov suab nrov txo Cheebtsam thiab perishable roj hmab bellows los yog cov khoom zoo sib xws. Kev siv cov tshuab grooved piping tshuab tuaj yeem ua kom yooj yim thiab yooj yim installation thiab txij nkawm, thiab txhim kho kev ua haujlwm ntawm lub nkoj cov kav dej. Yooj yim rau nruab Thaum txhim kho thawj zaug, lub qhov ntsia hlau qhov ntawm lub flange yuav tsum tau ua kom raug raws nraim, thiab tom qab ntawd nruj kom txhim kho qhov sib koom ua ke. Lub qhov bolt qhov ntsuas ntawm cov khoom siv nkag thiab qhov hluav taws xob yuav tsum tau ua kom zoo nrog cov flanges ntawm cov kav dej kom txuas nrog cov khoom siv. Txij li tus naj npawb ntawm qhov ntawm lub flange txiav txim siab ib qho ntawm ntau txoj haujlwm ruaj khov, tsuas yog qhov haum lossis lub valve tuaj yeem tig kom haum rau lub qhov ntsia hlau. Tsis tas li ntawd, lwm qhov kawg ntawm cov yeeb nkab flange yuav tsum tau ua raws li nws cov mating flange, uas ntxiv qhov nyuaj ntawm kev sib dhos thiab kev pheej hmoo ntawm misalignment. Lub grooved piping system tsis muaj qhov teeb meem no, thiab kev teeb tsa yooj yim dua. Cov kav dej thiab mating qhov chaw tuaj yeem tig tag nrho 360 degrees. Tsis muaj bolt qhov qauv los ua kom haum, thiab cov coupling tuaj yeem tso rau txhua qhov chaw ntawm qhov sib koom ua ke. Lub coupling tuaj yeem tig ib ncig ntawm cov yeeb nkab kom yooj yim nkag mus rau cov bolts thiab yooj yim nkag mus rau cov khoom siv. Ntxiv nrog rau kev tshem tawm qhov tsis zoo thaum lub sijhawm teeb tsa, 360-degree orientation muaj nuj nqi ntawm kev sib txuas thiab nws qhov profile me dua piv nrog flanges ua rau kev teeb tsa ntawm qhov zawj system zoo heev rau qhov chaw nqaim. Tsis tas li ntawd, tus installer tuaj yeem tso tag nrho cov bolts sib dhos ntawm txhua qhov sib koom ua ke hauv tib txoj haujlwm los pab txhawb kev tshuaj xyuas thiab kev saib xyuas. Cov flanges yog kwv yees li ob zaug ntawm txoj kab uas hla ntawm cov yeeb nkab uas lawv txuas nrog. Qhov nruab nrab, cov pob qij txha grooved tsuas yog ib nrab ntawm qhov loj no. Qhov zoo ntawm qhov tsim me me ua rau qhov zawj qhov system zoo tagnrho rau kev ua haujlwm ntawm qhov chaw txwv, xws li lub lawj thiab phab ntsa nkag-qhov tseeb uas tau lees paub thaum ntxov li xyoo 1930, thaum Victaulic pob qij txha tau siv thawj zaug hauv British nkoj nkoj. Kev sib dhos ceev Vim tias qhov sib txuas muaj tsawg dua bolts thiab tsis muaj lub zog xav tau txog li 12 "(300mm), grooved kav tuaj yeem ntsia tau sai dua li flanges. Tsis zoo li cov flanges uas yuav tsum tau welded rau cov yeeb nkab kawg, grooved valve sib dhos Tsis tas yuav tsum tau vuam, uas txuas ntxiv lub sij hawm luv luv thiab tshem tawm cov thermal puas rau lub valve, thaum txo qhov kev pheej hmoo ntawm kev nyab xeeb los ntawm kev tshem tawm thermal ua. Kev sib piv ntawm DIN 150 ballast kab teeb tsa nrog Victaulic grooved cov khoom thiab cov kev sib txuas ib txwm qhia tau hais tias tag nrho lub sij hawm installation yuav tsum tau txo los ntawm 66% (150.47 txiv neej-teev thiab 443.16 txiv neej-teev). Piv nrog rau 60 qhov sib txuas tsis zoo, lub sijhawm yuav tsum tau nruab 52 lub tes tsho zawv zawg flanges thiab welded luj tshib thiab tees qhia Lub sijhawm sib txawv loj tshaj plaws. Lub coupling yuav tsum tsuas yog ob lub bolts, thiab cov yeeb nkab txoj kab uas hla tuaj yeem ncav cuag 24 ntiv tes (600 hli). Nyob rau hauv sib piv, nyob rau hauv lub loj loj ntau yam, lub flange yuav tsum muaj tsawg kawg yog 20 teev ntawm ceev thiab bolts. Tsis tas li ntawd, txoj kev Lan yuav tsum tau siv cov wrenches tshwj xeeb rau lub sij hawm siv lub hnub qub qauv nruj kom ntsuas thiab xyuas kom meej tias qhov tseeb torque specifications mus txog. Lub tshuab raj grooved tso cai rau kev siv cov cuab yeej txheem tes los sib sau ua ke, ib zaug cov mating bolt pads ntawm lub coupling vaj tse ua tau raws li cov hlau khub Fittings tuaj yeem ntsia tau yog tias xav tau los ntawm cov hlau. Kev kuaj pom yooj yim tuaj yeem paub meej tias kev sib dhos raug. Ntawm qhov tod tes, flanges tsis muab kev pom zoo pom: tib txoj hauv kev los xyuas kom meej qhov kev sib dhos yog sau thiab nias lub kaw lus, tshawb xyuas cov xau thiab rov tsim kho raws li xav tau Tighten cov pob qij txha. Tib qhov tshwj xeeb ntawm kev tswj xyuas cov kav dej grooved yog tias nws ua kom muaj kev txhim kho-tsawg dua bolts thiab tsis muaj qhov yuav tsum tau muaj zog-thiab tseem ua rau kev saib xyuas lossis hloov kho ua haujlwm sai thiab yooj yim. Piv txwv li, rau kev nkag mus rau lub twj tso kua mis los yog Rau li qub, loosen ob lub bolts ntawm lub coupling, thiab tshem tawm cov vaj tse thiab gasket los ntawm kev sib koom ua ke. Nyob rau hauv lub flange system, ntau bolts yuav tsum tau muab tshem tawm. Thaum reassembling lub flange, tib lub sij hawm-siv thawj installation yuav tsum tau. Lub bolt zawm ib ntus. Vim tias lawv tsis tas yuav tsum tau rov nruj dua, cov couplings tshem tawm feem ntau ntawm kev saib xyuas txhua hnub ntsig txog flanges. Tsis zoo li cov flanges uas siv cov kev ntxhov siab sib txawv ntawm cov tshuab ntxhua khaub ncaws, cov txiv ntoo, thiab cov bolts, cov couplings hloov cov tshuab ntxhua khaub ncaws los ntawm qhov tseeb sab nraud compression ntawm cov yeeb nkab sib txuas. Tsis tas li ntawd, vim hais tias lub coupling gasket tsis cuam tshuam los ntawm lub siab compressive quab yuam, nws tsis tas yuav hloov tsis tu ncua, thaum lub flange gasket yuav tsum tau hloov thaum lub sij hawm disassembly system thiab txij nkawm. Txhawm rau txo cov suab nrov thiab kev vibration, lub flange system Yuav tsum tau siv roj hmab los yog braided saj zawg zog hoses. Cov khoom no tuaj yeem ua tsis tiav vim kev ncab ntau dhau, thiab nyob rau hauv ib txwm hnav thiab tsim kua muag, lawv yuav tsum tau hloov txhua txhua 10 xyoo ntawm qhov nruab nrab, ua rau cov nqi thiab lub sijhawm poob. Txawm li cas los xij, mechanical grooved pipes Cov pob qij txha tuaj yeem ua rau lub neej ntev. Lawv lub peev xwm los hloov mus rau qhov system vibration txo qhov kev pheej hmoo ntawm kev sib koom ua ke tsis tas yuav tsum muaj cov khoom tshwj xeeb uas yuav tsum tau saib xyuas tsis tu ncua lossis hloov pauv. Cov elastic caij nplooj ntoos hlav ntxhua khaub ncaws suav nrog hauv qhov hloov pauv tau yooj yim thiab nruj couplings yog qhov ruaj khov thiab tuaj yeem tiv taus qhov loj ntawm kev ua haujlwm siab thiab kev sib tw. Lub kaw lus tuaj yeem rov ua kom lub zog thiab decompressed yam tsis muaj qaug zog ntawm elastomer gasket. Qhov hnyav txo qhov sib dhos valve feem ntau yog tsim los ntawm flange Cheebtsam. Txawm li cas los xij, txoj kev sib txuas no yuav ntxiv qhov tsis tsim nyog rau cov kav dej qhov hnyav. Lub 6 nti (150 mm) flange valve los ua ke muaj lub lug npauj npaim valve Nws yog tsim, txuas nrog lub caj dab welded flange, nrog yim bolts thiab ceev ntawm txhua sab ntawm lub valve, hnyav kwv yees li 85 phaus. Lub 6-nti (150 mm) valve los ua ke siv lub grooved kawg npauj npaim valve, grooved kawg cov yeeb nkab, thiab ob lub couplings nruj los txuas lub rooj sib txoos. Nws hnyav txog 35 phaus, uas yog 58% tsawg dua qhov hnyav dua li cov flange sib dhos. Yog li ntawd, lub grooved valve los ua ke yog ib qho zoo tagnrho hloov rau kev lag luam shipbuilding. Kev sib piv ntawm DIN 150 ballast pipelines ntsia saum toj no qhia tau hais tias thaum Victaulic grooved cov khoom siv es tsis txhob siv cov kev sib txuas ib txwm siv, qhov hnyav yog txo los ntawm 30% (2,164 lbs vs. 3,115 lbs). Piv rau 60 qhov sib txuas tsis sib haum, 52 lub tes tsho zawv zawg flanges, ntsia liaj qhov rooj thiab ntxhua khaub ncaws ua rau muaj qhov hnyav ntawm qhov vuam / flange. Kev siv cov grooved yeeb nkab txuas es tsis txhob flanges tuaj yeem txo qhov hnyav thiab haum rau cov kav dej ntawm ntau qhov ntau thiab tsawg. Qhov loj ntawm qhov txo yog nyob ntawm cov yeeb nkab txoj kab uas hla thiab hom pob qij txha siv. Hauv kev sim siv Victaulic 77 coupling (qhov hnyav tshaj plaws sib txuas hauv cov koob) los txuas cov yeeb nkab, tag nrho cov khoom hnyav ntawm cov grooved feem ntau qis dua li ntawm ob lub PN10 zawv zawg tes tsho flanges. Qhov poob phaus tau sau tseg raws li hauv qab no: 4 "(100mm) - 67%; 12 "(300mm) - 54%; 20 nti (500 mm) - 60.5%. Kev siv cov sib zog hloov tau yooj yim 75 lossis rigid type 07 couplings thiab / lossis hnyav dua flange hom tuaj yeem ua tiav qhov hnyav 70%. Piv txwv li, 24-nti (600 mm) flange teeb siv hauv TG2 system hnyav 507 phaus, tab sis cov khoom siv zoo sib xws siv Victaulic fittings hnyav tsuas yog 88 phaus. Shipyards uas nyiam siv grooved couplings es tsis txhob ntawm flanges ntawm cov txheej txheem xaiv tau sau tseg tias cov nkoj txhawb nqa offshore tau txo qhov hnyav los ntawm 12 tons thiab nkoj nkoj tau txo qhov hnyav los ntawm 44 tons. Cov txiaj ntsig kev lag luam coj los ntawm kev siv thev naus laus zis rau cov tswv nkoj yog qhov pom tseeb: qhov hnyav dua txhais tau tias ntau cov khoom thauj lossis cov neeg caij tsheb thiab siv roj tsawg. Nws kuj ua rau tuav lub nkoj lub kav dej yooj yim dua. Txoj kev loj hlob zoo Vim lub installation ceev ceev, ruaj khov thiab lub teeb yuag, trough yeeb nkab tshuab tuaj yeem muab cov txiaj ntsig zoo dua li cov khoom flange zoo sib xws. Cov yam ntxwv no, ua ke nrog cov txiaj ntsig zoo ntxiv xws li kev ntseeg siab, kev yooj yim ntawm kev sib dhos thiab kev pheej hmoo ntawm kev nyab xeeb qis, tau ua rau cov tswv nkoj, engineers thiab shipyards xaiv grooved mechanical systems es tsis txhob flanges. Qhov kev loj hlob ntawm kev siv tshuab grooved no tau txais kev txhawb nqa los ntawm cov chaw muag khoom xws li cov khoom siv hluav taws xob xws li cov khoom siv hluav taws xob xws li cov khoom siv hluav taws xob xws li cov khoom siv hluav taws xob xws li cov khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov twj tso kua mis, nrog rau cov valve thiab compressor manufacturers, ntau yam uas tam sim no muab cov khoom nrog grooved kawg kev sib txuas. Qhov ntau ntawm cov kev pabcuam uas tuaj yeem siv grooved yeeb nkab txuas txuas ntxiv yog nce ntxiv. Tsim los ntawm nws txoj kev vam meej hauv kev siv dej, Victaulic txuas ntxiv nws cov keeb kwm ntev ntawm kev tsim kho tshiab los tsim cov hluav taws kub-resistant gaskets thiab tau txais hom kev pom zoo rau cov kev pab cuam offshore. (Tshaj tawm nyob rau lub Plaub Hlis 2014 ib tsab ntawm Maritime Reporter thiab Engineering News-http://magazines.marinelink.com/Magazines/MaritimeReporter) Ib pawg ntawm US senators tau npaj txoj cai tshiab los txhawb kev tsim txom kev sib deev/kev thab plaub (SASH) tiv thaiv. . Tus tswv ntawm Norwegian offshore txhawb nqa nkoj Eidesvik Offshore tau kos npe rau daim ntawv cog lus nrog cov tuam txhab roj Aker BP thiab Alma los tshawb xyuas ... Scandlines, lub hauv paus hauv Denmark, tau hais tias nws tau kos npe rau daim ntawv cog lus nrog Qaib Cov Txwv lub Cemre shipyard los tsim emission-dawb. . Niaj hnub no, nyob rau hauv kev lag luam transformer, tshwj xeeb tshaj yog nyob rau hauv marine thiab offshore daim ntaub ntawv, ib tug tshiab qauv yog maj hloov zuj zus: kev siv ntsuab technology thiab transformers uas ua raws li ib puag ncig yuav tsum tau BAE Systems, koom tes nrog rau lwm yam maritime kev lag luam cov thawj coj, tau txais nyiaj los ntawm UK Lub Tsev Haujlwm Saib Xyuas Kev Thauj Khoom rau kev tsim, kev tsim kho thiab ua qauv qhia txog lub zog tshiab thiab lub zog propulsion Lub Maritime Reporter's e-newsletter yog cov ntawv tshaj tawm xov xwm tshaj tawm xov xwm tshaj tawm nrog cov xov xwm loj tshaj plaws hauv kev lag luam shipping. Nws raug xa mus rau koj lub thawv ntawv 5 zaug hauv ib lub lis piam.