Kev ntsuas siab ntawm cov cua kub exchangers

Kev ntsuas siab ntawm cov cua kub exchangers

Lub tshav kub exchanger yuav tsum tau mus rau kev sim siab, thiab nws tsuas yog tsim nyog kom nkag siab txog nws qhov kev sim ua kom yooj yim dua. Cov hauv qab no yog kev nkag siab yooj yim ntawm kev ntsuas kev ntsuas siab rau cov cua kub exchanger:

Ua ntej, kev ntsuas siab ntawm overlapping heat exchangers tuaj yeem ua nyob rau hauv ib theem. Thaum lub tshav kub exchanger txuas ua ke, lub siab ntawm cov kav dej thiab lub plhaub yuav sib tshooj thiab sib sau ua ke.

Thib ob, ua tib zoo tshuaj xyuas cov khoom siv hluav taws xob ua ntej yuav khoom thiab tsis tu ncua xyuas nws thaum siv.

Thirdly, lub taag tubing phaj kub exchanger yog raug rau kev ntsuam xyuas siab ntawm lub plhaub kawg, thiab cov kev sib txuas ntawm lub tshav kub exchangers raj thiab raj phaj yog soj ntsuam, ua raws li los ntawm pipeline pressure testing.

Thib plaub, U-tube hluav taws xob hloov hluav taws xob tau sim siv lub nplhaib ntsuas siab, thiab cov pob qij txha kuj raug tshuaj xyuas. Tom qab ntawd sim cov kav dej.

Kev suav ntawm cov khoom siv hluav taws xob sib txawv yog cov txheej txheem nyuaj. Tam sim no, txoj kev siv feem ntau yog logarithmic txhais tau tias kub sib txawv txoj kev thiab NTU txoj kev. Tam sim no, ntau thiab ntau lub tuam txhab siv computer suav, ua cov txheej txheem ntawm kev suav cov phaj kub exchangers sai, yooj yim, thiab raug. Hauv qab no, peb yuav qhia luv luv txog kev suav cov txheej txheem ntawm cov khoom siv hluav taws xob. Txoj kev no yog ib txoj hauv kev tsim kev xam raws li kev hloov hluav taws xob thiab kev poob siab ntsig txog cov qauv. Hauv kev xaiv thiab suav cov khoom siv hluav taws xob, muaj ntau yam tsis muaj raws li hauv qab no:

Tag nrho cov tshav kub hloov mus (kW)

Qhov kub ntawm qhov nkag thiab qhov hluav taws xob yog nyob rau hauv qhov chaw, thiab qhov tso cai poob siab ntawm ob sab yog qhov kub thiab txias ua haujlwm siab tshaj plaws ntawm lub ntsiab thiab ob sab. Yog tias tus nqi ntws ntawm qhov nruab nrab ntawm cov cua sov hloov mus rau qhov nruab nrab, qhov muaj peev xwm ntawm cov cua sov tshwj xeeb, thiab qhov kub ntawm qhov sib txawv ntawm qhov hluav taws xob thiab qhov hluav taws xob paub, tag nrho cov hluav taws xob hloov hluav taws xob tuaj yeem raug xam.

Lub tshav kub load kub flux tshuav mis qhia txog kev sib raug zoo ntawm qhov kub thiab txias hloov ntawm ob lub kua thaum lub sij hawm sib hloov: theem hloov tshav kub hloov txheej txheem 2. Thaum tshav kub kub exchanger, muaj ib tug hloov nyob rau hauv ib tug nam ntawm lub ntws, xws li chav condensation los yog kua boiling: ob tog nrog theem hloov pauv muaj theem hloov, xws li condensation ntawm ib sab thiab boiling cua sov hloov mus rau lwm sab

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