Yuav ua li cas yog cov kev tiv thaiv tom qab lub overload ntawm lubvalvehluav taws xob actuator?
Degreasing txoj kev rau li qub
Ua ntej, ntxuav cov kauj ruam
Valve qhov chaw yuav tsum dhau los ntawm cov txheej txheem hauv qab no ua ntej sib dhos:
1, raws li qhov yuav tsum tau ua, qee qhov yuav tsum tau ua polishing kev kho mob, qhov chaw tsis tuaj yeem ua cov burr, thiab lwm yam.;
2. Txhua qhov chaw yog degreased;
3, pickling passivation tom qab degreasing, ntxuav tus neeg saib xyuas tsis muaj phosphorus,;
4, tom qab pickling passivation, yaug nrog dej ntshiab, tsis muaj tshuaj residue, carbon steel qhov chaw tshem tawm cov kauj ruam no;
5, ib qho los ntawm ib feem nrog cov ntaub tsis-woven qhuav, tsis tuaj yeem khaws cov ntaub plaub ntawm qhov chaw, lossis nrog cov nitrogen kom qhuav;
6. So cov khoom ib los ntawm ib qho nrog cov ntaub ntawv uas tsis yog-woven los yog cov ntawv lim dej uas muaj cov cawv ntshiab kom txog thaum tsis muaj xim qias neeg.
Ob, kev sib dhos yuav tsum
Cov khoom huv huv yuav tsum tau muab kaw rau kev teeb tsa. Cov kev xav tau rau cov txheej txheem installation yog raws li nram no:
1. Lub rooj cob qhia kev teeb tsa yuav tsum huv, lossis teeb tsa thaj chaw huv ib ntus, xws li cov ntaub pua tsev tshiab lossis cov yeeb yaj kiab yas, kom tsis txhob muaj plua plav nkag thaum lub sijhawm teeb tsa.
2, cov neeg ua haujlwm sib dhos yuav tsum hnav cov khaub ncaws ua haujlwm huv, hnav cov paj rwb ntshiab, cov plaub hau tsis tuaj yeem tawm, ko taw hnav khau huv, tes hnav hnab looj tes yas, degreasing,.
3. Cov cuab yeej sib dhos yuav tsum tau degreased thiab ntxuav ua ntej sib dhos kom huv si
Lwm yam kev xav tau
1. Tshem tawm lub valve nrog nitrogen kom tsawg li 1 feeb.
2, kev kuaj airtight yuav tsum yog cov ntshiab nitrogen.
3. Tom qab dhau qhov kev ntsuam xyuas airtight, ntim nws thiab kaw nws nrog lub hau huv polyethylene. Ua ntej siv lub hau polyethylene, tsau nws nrog cov kuab tshuaj organic thiab so kom huv.
4. Tom qab ntawd muab khi nrog lub hnab nqus.
5. Tom qab ntim.
6. Kev ntsuas yuav tsum tau ua kom ntseeg tau tias lub pob tsis puas thaum lub sijhawm thauj mus los.
Iv. Txais yuav tsum tau
Kev lees txais yuav tsum ua raws HG 20202-2000 "Code for Construction and Acceptance of Degreasing Engineering". Ua ntej sib dhos, txhua qhov yuav tsum tau muab so nrog cov ntawv lim huv huv.
Dab tsi yog txoj kev tiv thaiv tom qab overload ntawm valve hluav taws xob actuator?
Valve, raws li ib qho tseem ceeb txhawb nqa cov khoom lag luam, koom nrog txhua yam ntawm tib neeg lub neej, nrog rau kev xav tau ntawm kev lag luam valve, valve manufacturing kev lag luam nyob rau hauv qhov loj xav tau ib puag ncig, kuj nthuav tawm txoj kev loj hlob zoo heev. Yog li ntawd, lub sijhawm nyob rau hauv pem hauv ntej ntawm lub lag luam valve tau zoo tsim cov khoom zoo kev nyab xeeb thiab cov khoom lag luam kev sib tw, txhua lub tuam txhab valve yog nyob rau hauv kev nrhiav cov khoom yuav high-tech, siab tsis, muaj zog corrosion kuj, siab lub neej txoj kev.
Lub valve hluav taws xob actuator yog ib qho khoom siv tseem ceeb kom paub txog qhov kev tswj xyuas valve, tswj tsis siv neeg thiab cov chaw taws teeb tswj. Nws cov txheej txheem txav tuaj yeem tswj tau los ntawm stroke, torque lossis axial thrust. Nyob rau hauv cov txheej txheem ntau lawm, lub cev muaj zog tsis siv thauj khoom, qhov xwm txheej no tsis raug tso cai tshwm sim. Yog tias muaj qhov tshwm sim zoo li no, nws yog ib qho tsim nyog yuav tsum paub qhov laj thawj, feem ntau ua rau cov laj thawj hauv qab no rau kev thauj khoom:
1, cov khoom siv hluav taws xob tsawg, tsis tuaj yeem tau txais qhov xav tau torque, kom lub cev muaj zog nres;
2, teeb tsa lub torque txwv tsis raug, kom nws loj dua qhov nres torque, ua rau lub zog ntau dhau, kom lub cev muaj zog nres;
3, kev siv tsis tu ncua, kev txuag hluav taws xob, ntau tshaj qhov tso cai kom sov ntawm lub cev muaj zog;
4. Vim li cas, lub torque limiting mechanism tsis ua hauj lwm thiab lub torque loj dhau lawm;
5, kev siv cov ambient kub yog siab dhau, txheeb ze kom txo tau lub cev muaj zog tshav kub muaj peev xwm.
Txoj kev tiv thaiv yooj yim rau overload:
1, lub cev muaj zog ua haujlwm tsis tu ncua lossis taw tes ua haujlwm ntawm kev tiv thaiv overload, siv cov ntsuas kub;
2, lub cev muaj zog thaiv kev tiv thaiv, siv thermal relay;
3, rau kev sib tsoo luv luv, siv fuse lossis overcurrent relay.
Valve hluav taws xob actuator yog ib qho khoom siv tseem ceeb kom paub txog kev tswj xyuas valve, tswj tsis siv neeg thiab tswj chaw taws teeb. Nws txoj kev txav tuaj yeem tswj tau los ntawm stroke, torque lossis axial thrust. Kev xaiv kom raug ntawm lub tshuab hluav taws xob valve yog qhov tseem ceeb heev los tiv thaiv qhov tshwm sim dhau los (ua haujlwm torque siab dua li kev tswj lub zog). Qhov tsis tsim nyog qhov kev teeb tsa ntawm qhov kev tswj hwm yuav ua rau lub oscillation ntawm kev tswj qhov system. Yog hais tias tus proportional nce ntawm ib lub voj regulator loj dhau lawm, lub sij hawm ib qho luv luv, thiab lub sij hawm sib txawv thiab qhov sib txawv ntawm qhov sib txawv loj heev, nws yuav ua rau lub cev oscillate, thiab ua rau lub actuator oscillation. Rau cov kev tswj ntau lub voj voog, ntxiv rau cov laj thawj saum toj no, kuj tseem muaj qhov teeb meem ntawm kev sib cuam tshuam ntawm lub voj, qhov teeb meem resonance tshwm sim los ntawm qhov teeb meem tsis raug. Nyob rau hauv qhov kev pom ntawm cov teeb meem uas twb muaj lawm, cov tsis tuaj yeem hloov kho kom lub voj voog tswj muaj qee qhov kev ruaj ntseg zoo yam tsis muaj kev cuam tshuam rau kev tsim khoom thiab ua raws li cov txheej txheem tswj kev xav tau.
Post lub sij hawm: Jun-27-2022
