Cov khoom siv thiab kev xav tau ntawm valve Electric actuator rau lub hwj chim chaw nres tsheb valve (1)
Ua ntej ntawm tag nrho cov, nyob rau hauv cov nqe lus ntawm kev xaiv valve, nyob rau hauv thaum ntxov lub sij hawm ntawm lub tsim ntawm lub tshwj xeeb cheeb tsam, cov kav dej xa dej network yog tsawg tshaj li 10 km, thiab feem ntau ntawm cov yeeb nkab network siv lub rooj vag li qub. Vim qhov yooj yim cov yeeb nkab network thiab zoo nruj ntawm lub rooj vag li qub, lub luag hauj lwm ntawm li qub hauv cov yeeb nkab network tsis tseem ceeb heev. Mos foob npauj npaim valve. Lub sealing nto feem ntau yog ua los ntawm butadiene roj hmab thiab epDM roj hmab, thiab lwm yam. Reclaimed roj hmab yog nruj me ntsis txwv tsis pub. Cov khoom siv sealing yuav tsum ua kom tau raws li qhov yuav tsum tau muaj ntawm cov ntsuas kev noj qab haus huv, thiab qhia txog cov ntaub ntawv tiv thaiv kev laus thiab hnav cov ntaub ntawv ntsuas kev tiv thaiv;
Ua ntej ntawm tag nrho cov, nyob rau hauv cov nqe lus ntawm kev xaiv valve, nyob rau hauv thaum ntxov lub sij hawm ntawm lub tsim ntawm lub tshwj xeeb cheeb tsam, cov kav dej xa dej network yog tsawg tshaj li 10 km, thiab feem ntau ntawm cov yeeb nkab network siv lub rooj vag li qub. Vim qhov yooj yim cov yeeb nkab network thiab zoo nruj ntawm lub rooj vag li qub, lub luag hauj lwm ntawm li qub hauv cov yeeb nkab network tsis tseem ceeb heev. Thiab nyob rau hauv thaum ntxov 1990s, kev siv npauj npaim valve thoob plaws lub teb chaws, thaum lub sij hawm ntawd, Tuam Tshoj tus npauj npaim valve tsim cia li pib, nyob rau hauv lub cev casting zog tsis siab, valve phaj apron sealing kev ua tau zoo yog tsis zoo, qhov zoo ntawm npauj npaim valve teeb meem yog ntau. thiab pom tseeb nthuav tawm. Cov li qub siv hauv cov yeeb nkab network yog cais los ntawm caliber: lub rooj vag valve yog siv thaum DN≤400mm, npauj npaim valve siv thaum DN400mm. Lub hauv paus tseem ceeb ntawm kev faib tawm yog tias 90% ntawm kev tswj xyuas kev ua haujlwm hauv cov yeeb nkab network tshwm sim hauv cov yeeb nkab me me hauv qab DN400mm, yog li nws yuav tsum tau nruj nruj ntawm qhov qhib thiab kaw cov li qub hauv cov yeeb nkab network. Thiab vim hais tias lub caliber me me, kev siv zog ntawm lub valve qhib thiab kaw tsis loj. Txawm li cas los xij, qhov zaus ntawm cov yeeb nkab tawg hauv DN400mm yeeb nkab network yog qis dua li hauv cov yeeb nkab me me, thiab kev siv zog ntawm kev qhib thiab kaw tom qab siv npauj npaim valve poob qis.
Qhov teeb meem tam sim no nyob rau hauv lub valve kev yuav khoom txuas peb lub tuam txhab kuj tau muab tso rau hauv cov kev xav tau sib xws:
1, valve cov khoom yuav tsum tau
Lub cev lub cev thiab lub valve phaj yuav tsum yog ua los ntawm cov hlau nplaum.
(2) cov khoom siv qia. Lub rooj vag li qub yuav tsum yog stainless hlau qia (2Cr13), npauj npaim li qub yuav tsum yog stainless hlau qia inserts;
Txiv ntseej khoom. Nws yuav tsum tau ua los ntawm cam khwb cia txhuas tooj dag los yog cam khwb cia txhuas bronze, uas nws hardness thiab lub zog yog ntau dua li lub valve qia;
Cov khoom ntawm sealing nto
A, qhov sib txawv wedge rooj vag valve. Lub nplhaib tooj liab yuav tsum tau cam khwb cia txhuas tooj dag lossis cam khwb cia txhuas bronze;
B, muag muag npauj npaim valve. Lub sealing nto feem ntau yog ua los ntawm butadiene roj hmab thiab epDM roj hmab, thiab lwm yam. Reclaimed roj hmab yog nruj me ntsis txwv tsis pub. Cov khoom siv sealing yuav tsum ua kom tau raws li qhov yuav tsum tau muaj ntawm cov ntsuas kev noj qab haus huv, thiab qhia txog cov ntaub ntawv tiv thaiv kev laus thiab hnav cov ntaub ntawv ntsuas kev tiv thaiv;
Valve ncej packing. V roj hmab nplhaib los yog carbon fiber impregnated polytetrafluoroethylene packing, yuav tsum xyuas kom meej sealing zoo, tsis muaj to; Thaum qhib thiab kaw ntau zaus, cov ntim khoom tsis ua haujlwm, tsis muaj kev laus, thiab cov nyhuv sealing yuav tsum tau khaws cia ntev, uas yuav tsum tau lav rau tsawg kawg kaum xyoo lossis ntev dua.
2. Kev xav tau ntawm qhov sib txawv ntawm qhov ceev kis tau tus mob
Cov khoom siv lub cev yuav tsum ua raws li cov khoom siv lub cev;
(2) Lub thawv kis tau tus mob yuav tsum tau muab kaw thiab tuaj yeem tiv taus tsis pub tsawg dua 3 meters ntawm cov dej tob yam tsis muaj dej;
(3) Tsis muaj sundries nyob rau hauv lub thawv, thiab roj yuav tsum tau siv los tiv thaiv qhov ze ntawm lub iav.
3, mos foob npauj npaim valve qauv thiab cov kev cai:
(1) Lub valve yuav tsum raug kaw clockwise tig;
② Lub valve lub cev yuav tsum tau muab nrog npauj npaim phaj txwv, nws lub zog yuav tsum siab dua qhov qhib lub zog ntawm lub valve;
Lub nplhaib sealing yuav tsum tau kho ntawm lub valve lub cev, thiab lub nplhaib sealing phaj yuav tsum yog dovetail nias phaj nrog txhim khu kev qha los tiv thaiv xoob;
(4) lub valve qhib thiab kaw kev khiav hauj lwm kawg yuav tsum yog square tenon, thiab qhov loj ntawm standardization, thiab fim av;
Lub nplai kab ntawm lub valve qhib thiab kaw degree yuav tsum tau muab pov rau ntawm lub gearbox cover los yog lub phaj phaj tom qab hloov dua siab tshiab cov kev taw qhia, uniform nto, thiab cov nplai kab yog txhuam nrog fluorescent hmoov los qhia qhov muag.
4, tiv tauj cov dej ntws hauv lub cev lub cev thiab lub phaj valve yuav tsum muaj kev tiv thaiv corrosion, xws li xuab zeb tu thiab xeb txau hmoov tsis muaj tshuaj lom epoxy resin.
5, kev xav tau rau cov paib valve
Thaum lub valve tawm ntawm lub Hoobkas, lub Hoobkas valve yuav tsum muab txhua lub valve ib tus lej ruaj khov, nws tus lej thiab tus qauv valve, caliber, nominal siab, valve naj npawb, chaw tsim tshuaj paus, hnub tsim khoom thiab lwm cov ntsiab lus ntawm lub valve yuav tsum tau kho ntawm lub valve lub cev.
Kev taw qhia ntawm hluav taws xob actuators rau lub hwj chim chaw nres tsheb li qub (1) Tus qauv no qhia txog txhua yam ntawm cov hluav taws xob actuators rau lub hwj chim chaw nres tsheb li qub (tom qab no hu ua hluav taws xob actuators), suav nrog cov ntsiab lus, hom, kev xav tau, hom kev xaiv, xeem txoj kev, tshuaj xyuas cov cai, cov cim , ntim, tsheb thauj mus los thiab kev cia cov kev cai rau kev tswj fais fab. Cov qauv no muaj feem xyuam rau ntau hom hluav taws xob actuators xws li kaw-off li qub, tswj li qub thiab baffles uas tau tsav los ntawm lub cev muaj zog. *** versions ntawm undated references siv rau lub thoob ntiaj teb Standard no.
1, Scope,
Cov txheej txheem no qhia txog cov hluav taws xob actuators rau txhua yam ntawm lub hwj chim chaw nres tsheb li qub (tom qab no hu ua hluav taws xob actuators), suav nrog cov ntsiab lus, hom, kev xav tau, hom kev xaiv, kev sim, kev tshuaj ntsuam xyuas, cov cim, ntim, kev thauj mus los, kev cia thiab lwm yam kev. cov kev cai rau kev tswj fais fab.
Cov qauv no muaj feem xyuam rau ntau hom hluav taws xob actuators xws li kaw-off li qub, tswj li qub thiab baffles uas tau tsav los ntawm lub cev muaj zog.
2. Cov ntaub ntawv siv tau zoo
Cov kev cai ntawm cov ntaub ntawv hauv qab no tau muab tso rau hauv tus qauv thoob ntiaj teb no los ntawm kev siv. Tag nrho cov kev hloov kho tom ntej (tsis suav nrog errata) lossis kev hloov kho rau cov ntawv sau hnub tim tsis siv rau tus qauv thoob ntiaj teb no. Txawm li cas los xij, ob tog rau qhov kev pom zoo raws li Cov Txheej Txheem Thoob Ntiaj Teb no raug txhawb kom tshawb xyuas qhov muaj *** versions ntawm cov ntaub ntawv no. *** versions ntawm undated references siv rau lub thoob ntiaj teb Standard no.
GB 755 Kev ntsuam xyuas thiab kev ua haujlwm ntawm cov motors teb
GB / T 997 lub cev muaj zog qauv thiab installation hom code
GB/T 3797 Cov khoom siv hluav taws xob tswj hluav taws xob - Ntu 2: Cov khoom siv hluav taws xob tswj tau nruab nrog cov khoom siv hluav taws xob
GB 4208 Enclosure tiv thaiv chav kawm (IP code)
GB / T 12222 Kev sib txuas ntawm ntau qhov tig valve tsav ntaus ntawv
GB / T 12223 Kev sib txuas ntawm ib nrab teb valve tsav ntaus ntawv
GB / T 13306 cov cim
JB/T 8218 actuator terminology
JB/T10308.3 Field bus rau ntsuas thiab tswj cov ntaub ntawv kev sib txuas lus kev lag luam tswj tshuab
3. Cov ntsiab lus thiab txhais
Cov ntsiab lus thiab cov ntsiab lus hauv qab no siv rau International Standard no; Lwm cov ntsiab lus thiab cov ntsiab lus siv nyob rau hauv tus txheej txheem thoob ntiaj teb no xa mus rau JB/T 8218
3.1 ntsuas torque Normal Torque
Torque tsim muab tus nqi.
3.2. Tswj lub torque tripping torque
Nyob rau hauv ob qho kev qhia ntawm qhib thiab kaw, lub torque tswj mechanism tuaj yeem tswj tau tus nqi torque ntau, tseem hu ua txiav torque.
Cov tswj torque tuaj yeem muab faib ua qhov loj tswj torque thiab me me tswj torque. Kev tswj lub zog loj heev yog lub zog tswj lub cev muaj peev xwm tswj tau qhov loj tswj torque yog lub zog tswj lub cev muaj peev xwm tswj tau qhov tsawg kawg nkaus torque.
Xauv torque
Torque tso zis los ntawm hluav taws xob actuator thaum lub rotor ntawm lub cev muaj zog raug thaiv.
3. Teem lub torque torque
Raws li cov kev xav tau ntawm cov neeg siv, tus nqi torque yog tswj los ntawm hluav taws xob actuator hloov ua ntej xa khoom.
3. 5. Tso zis ceev
DL /T 641-2005
Tus qauv tsim tus nqi yog qhov kev sib hloov ceev ntawm cov zis ncej ntawm lub tshuab hluav taws xob.
6.6
Yog lub sij hawm xav tau los ntawm lub tshuab hluav taws xob kom khiav ntawm txoj hauj lwm "tag nrho" mus rau "tag nrho ntawm" txoj hauj lwm los yog los ntawm "0%" stroke mus rau "100%" stroke.
Intrinsic yuam kev
Nyob rau hauv cov ntaub ntawv teev tseg, qhov sib txawv loj ntawm qhov tseeb tus cwj pwm nkhaus nkhaus thiab cov kab mob stroke tus yam ntxwv nkhaus tau qhia raws li feem pua ntawm cov kab mob stroke.
3. Hysteresis plus Dead band
Qhov sib txawv loj dua ntawm ob qhov sib thooj stroke qhov tseem ceeb ntawm tib lub teeb liab tawm tswv yim nce thiab poob hauv qhov ntsuas kab mob stroke, qhia raws li feem pua ntawm cov kab mob stroke.
3.9 Tuag Bend
Lub sijhawm luv luv nyob rau hauv uas qhov kev hloov pauv ntawm cov kev taw qhia ntawm lub teeb liab input tsis ua rau muaj kev hloov pauv hauv kev mob stroke, qhia raws li feem pua ntawm cov teeb liab tus nqi ntau.
3.10. Fais Fab Tswj Cheeb Tsam
Ib qho khoom siv hluav taws xob uas hloov pauv thiab nthuav tawm cov teeb liab hluav taws xob los tswj qhov pib, nres thiab tig cov lus qhia ntawm lub cev muaj zog.
Post lub sij hawm: Lub Xya hli ntuj-19-2022
