- Lub ntsiab lus ntawm cryogenic li qub
Cov qauv sib txawv muaj cov ntsiab lus sib txawv ntawm qhov ntsuas kub qis. Xws li tus qauv British valve BS6364 "tsawg-kub li qub" rau qhov nruab nrab kub ntawm -50 degree ~ -196 degree ; US tus qauv MSSSP-134 "qhov kub thiab txias li qub thiab lawv lub cev lub cev / lub kaus mom txuas ntxiv" rau qhov ntsuas kub qis ntawm "rau cov qauv kev coj ua, qhov ntsuas kub qis ntawm -100 degree ~ {{1 0}} degree "; Tuam Tshoj lub teb chaws tus qauv GB / T 24925 "cryogenic valve technical conditions" tus qauv rau qhov nruab nrab kub ntawm -29 degree ~ -196 degree ; Plhaub valve txheem SHELL MESC SPE 77/200 "cryogenic thiab ultra-low-kub li qub" rau qhov nruab nrab kub ntawm -30 degree ~ -196 degree . Txawv teb chaws raws li ntau yam sib txawv gases ntawm atmospheric siab liquefaction kub yog feem ntau muab faib ua rau kub theem. Qib 1 rau 0 ~ -46 degree, theem 2 rau -47 ~ -60 degree, theem 3 rau -61 ~ -70 degree, theem 4 rau {{30 }} ~ -101 degree , qib 5 rau -102 ~ -196 degree, qib 6 rau -253 degree lossis tsawg dua. Feem ntau -46 ~ -150 degree hu ua qhov kub thiab txias, -150 degree hu ua ultra-low temperature.
Petrochemical kev lag luam ntawm lub ntsiab lus ntawm qhov kub thiab txias li qub yog nyob rau hauv raws li tus tsim kub ntawm lub thauj nruab nrab mus rau lub ntsiab txhais ntawm daim ntawv thov ntawm nruab nrab kub -40 degree hauv qab lub valve hu ua cryogenic valve, daim ntawv thov ntawm nruab nrab kub -101 degree hauv qab lub valve yog hu ua ultra-low-temperature li qub.
- kev tsim cov khoom siv cryogenic li qub
Kev tsim cov khoom siv hluav taws xob qis los tsim cov txheej txheem tsim khoom nruj thiab siv cov cuab yeej tshwj xeeb, ua cov khoom siv rau kev tswj xyuas nruj. Tom qab kev kho tshwj xeeb uas tsis muaj qhov kub thiab txias, cov khoom siv ntxhib hauv qhov nruab nrab cua txias rau ob peb teev (2-6} teev) kom tso tawm kev ntxhov siab, kom ntseeg tau tias qhov ntsuas kub qis ntawm cov khoom siv, kom ntseeg tau tias qhov loj me, hauv txhawm rau tiv thaiv lub valve nyob rau hauv qhov kub thiab txias, vim qhov kub hloov pauv los ntawm qhov deformation tshwm sim los ntawm kev xau. Valve sib dhos thiab cov li qub qub kuj sib txawv, cov khoom yuav tsum tau ua kom huv si kom huv si kom tshem tau cov roj thiab av kom ntseeg tau tias kev siv tau zoo.
- kev soj ntsuam ntawm qhov kub thiab txias li qub
Cryogenic li qub ntxiv rau chav ntsuas kub thiab ntsuas kub qis, cov kev sim hauv qab no yuav tsum tau ua
1, ultra-low-temperature li qub yuav tsum yog qhov tseem ceeb ntawm kev kho mob khaub thuas sib sib zog nqus
2, qhov tseem ceeb thiab welds yuav tsum tau ua qhov ntsuas kub ntawm qhov ntsuas kub kom ntseeg tau tias lub valve tsis nkig hauv qhov kub thiab txias.
3, lub valve yuav tsum tau kuaj nyob rau hauv chav tsev kub, thawj 1.5 lub sij hawm lub nominal siab hydrostatic lub zog xeem, thiab ces 1.1 lub sij hawm lub nominal siab sealing xeem.
4, tom qab qhov kev ntsuam xyuas hydrostatic li qub yuav tsum tshem dej, tsis muaj roj, thiab ua kom qhuav.
5, txhua pawg ntawm qhov ntsuas kub qis yuav tsum tau coj mus kuaj raws li qee qhov kev ntsuas ntawm qhov ntsuas kub qis, qhov ntsuas kub qis yuav tsum tau ua tom qab 1.5 npaug ntawm qhov ntsuas hydrostatic zog.
6, tom qab lub valve ntsuas kub qis, yuav tsum tiv thaiv huab cua rau hauv lub valve;
7, tom qab lub valve cryogenic kuaj, yuav tsum yog ntuj sov los yog kiv cua tshuab, yog nruj me ntsis txwv tsis pub los ntawm cua sov thiab lwm yam kev ua kom lub valve sov so;
8, lub valve qis-kub ntsuas tom qab cua sov, lub valve fasteners dua ntawm qhov nruj;
9, lub valve mus rau hauv lub warehouse, nco ntsoov xyuas lub valve hloov kom ntseeg tau tias lub valve nyob rau hauv ib tug tsim nyog lub xeev.
10, valve cia thiab thauj cov txheej txheem, yuav tsum tau xyuam xim rau cov chav kawm stainless hlau thiab cov chav kawm carbon steel li qub, thiab ua haujlwm zoo ntawm cov plua plav pov thawj, tsis muaj dej, roj pov thawj thiab tiv thaiv kev tawg.
11, cov kev taw qhia ntws ntawm lub valve, siab nyem kev taw qhia thiab daim ntawv teev npe, thiab lwm yam, yuav tsum ua raws li qhov yuav tsum tau ua ntawm chav tsim qauv rau kev tshuaj xyuas.
- lub installation ntawm low-temperature valve yuav tsum
Vim hais tias ntawm cov qauv tshwj xeeb ntawm cov li qub cryogenic, cryogenic valve installation kuj muaj nws cov kev cai tshwj xeeb. Vim hais tias ntawm lub caj dab ntev bonnet qauv yam ntxwv ntawm cryogenic li qub, cryogenic li qub nyob rau hauv lub installation ntawm lub valve qia qia kev taw qhia yuav tsum tau vertically upward nyob rau hauv qhov ntau ntawm 45 degrees, thiab yuav tsum tau sim kom tsis txhob installation nyob rau hauv lub ntsug pipeline.
GB_T 22724-2022 cov khoom siv roj ntsha liquefied thiab kev teeb tsa ntawm cov nroj tsuag onshore" ntawm cov kev cai:
Nthuav bonnet cryogenic valve qia yuav tsum yog vertically upward los yog sib txawv los ntawm qhov zoo plumb kab yuav tsis pub tshaj 45 degree, kom paub tseeb tias yuav tsis muaj to thiab clogging, tsuas yog rau me me txoj kab uas hla ntsuas lub hauv paus valve.
Txwv tsis pub, qhov nruab nrab qhov kub thiab txias yuav ua rau lub elongated ib feem ntawm lub valve npog, uas yuav ua rau lub valve ntim tsis zoo thiab ua rau xau, thiab tib lub sijhawm, qhov txias yuav raug xa mus rau lub valve tuav, uas yuav ua rau tus kheej raug mob rau lub cev. tus neeg ua haujlwm. Rau qhov ntsuas kub qis nrog cov txheej txheem siab nyem, thaum txhim kho lub valve, kev saib xyuas tshwj xeeb yuav tsum tau them rau cov kev xav tau ntawm cov kev taw qhia ntawm lub valve siab nyem. Cov kev taw qhia ntawm lub valve siab nyem yuav tsum tau cim rau ntawm tus txheej txheem khiav daim duab, thiab embodied nyob rau hauv lub pipeline axonometric daim ntawv (lub ntsiab lus no tseem ceeb heev, tseem ceeb heev, tseem ceeb heev), yog hais tias yuav tsum tau teem lub siab nyem qhov thiab tsis. teeb, lub valve kaw, lub valve kab noj hniav ntawm cov kua los ntawm tshav kub gasification, yooj yim heev ua rau lub valve lub cev tawg. Cov kev taw qhia ntawm lub siab nyem ntsia tsis ncaj ncees lawm, tej zaum nws yuav combustible los yog tshuaj lom txheej txheem xov xwm, xau mus rau lub lag luam thiab txij nkawm sab, ua rau casualties!