Flowmeter installation specification

1. Cov kev xav tau rau ib puag ncig sab nraud:

Flowmeter yog qhov zoo tshaj plaws nyob rau hauv tsev, yuav tsum tau nruab rau sab nraum zoov, yuav tsum tau siv tshuaj pleev thaiv hnub, los nag, tiv thaiv xob laim, thiaj li tsis cuam tshuam rau lub neej kev pab cuam. Lub flowmeter yuav tsum tau muab tso rau hauv qhov chaw uas yooj yim los tswj thiab tsis muaj zog electromagnetic cuam tshuam thiab thermal tawg.

2. Cov kev xav tau rau cov kav dej bypass:

Txhawm rau kom ntseeg tau tias kev saib xyuas ntawm cov ntsuas dej ntws tsis cuam tshuam rau kev tsim khoom ib txwm muaj, cov kav dej hauv ntej thiab nraub qaum ntawm cov ntsuas dej ntws yuav tsum tau nruab nrog txiav tawm li qub (nres li qub), thiab cov kav dej bypass yuav tsum tau teeb tsa. Lub flow tswj valve yuav tsum tau muab tso rau hauv lub downstream ntawm flow meter, thiab nres valve ntsia nyob rau hauv upstream thaum lub flow meter yog siv yuav tsum tau qhib tag nrho kom tsis txhob muaj qhov tsis ruaj khov ntawm cov dej ntws ntws.

3. Qhov yuav tsum tau muaj rau cov kav dej ncaj nraim:

Lub flow meter yuav tsum tau muab ntsia rau kab rov tav ntawm lub raj xa dej (qhov inclination ntawm lub raj xa dej yog nyob rau hauv 50), thiab cov axis ntawm cov flowmeter yuav tsum concentric nrog lub axis ntawm lub raj xa dej thiab cov kev taw qhia ntws yuav tsum zoo ib yam. Qhov ntev ntawm cov kav dej ntws ntawm cov flowmeter yuav tsum tsis pub tsawg dua 2D sib npaug ntawm cov yeeb nkab ncaj nraim, yog tias qhov chaw tso cai tso cai nws pom zoo tias cov kav dej ncaj nraim yog 20D thiab qis qis yog 5D. Sab hauv txoj kab uas hla ntawm cov kav dej ntws thiab cov kav dej hauv qab ntawm qhov chaw teeb tsa ntawm lub flowmeter yuav tsum yog tib yam li lub taub sab hauv ntawm lub flowmeter.

4. Cov kev xav tau rau impurities muaj nyob rau hauv nruab nrab:

Txhawm rau kom ntseeg tau tias kev pabcuam lub neej ntawm cov ntsuas dej ntws, cov lim dej yuav tsum tau muab tso rau hauv pem hauv ntej ntawm cov yeeb nkab ncaj ntawm cov ntsuas dej ntws.

5. Cov kev xav tau rau kev teeb tsa thiab vuam:

Thaum txhim kho flowmeters (xws li vortex flowmeters), cov neeg siv yuav tsum muaj lwm khub ntawm cov qauv flanges welded rau pem hauv ntej thiab nram qab kav dej. Vuam nrog flow meter tsis tso cai! Thaum lub sij hawm installation, lub sealing gaskets ntawm flanges yuav tsum tsis txhob concave rau hauv cov kav dej. Ua ntej txhim kho lub ntsuas dej ntws, cov vuam slag thiab lwm yam av hauv cov kav dej yuav tsum raug tshem tawm nruj me ntsis. Rau cov khib nyiab hauv cov kav dej xws li cov khib nyiab, vuam slag, pob zeb, plua plav, thiab lwm yam, nws raug nquahu kom nruab ib lub tshuab lim tsis siv neeg nrog 5 micron screen upstream los thaiv cov tee dej thiab xuab zeb. Nws yog qhov zoo dua los siv cov kav dej sib npaug (lossis bypass yeeb nkab) es tsis txhob siv lub ntsuas dej los ntxuav cov yeeb nkab. Txhawm rau kom ntseeg tau tias lub ntsuas dej ntws tsis raug puas thaum siv.

6, Flowmeter grounding yuav tsum:

Lub flowmeter yuav tsum muaj kev ntseeg siab hauv av thiab tsis tuaj yeem koom nrog hauv av xaim ntawm lub zog tam sim no.

7. Yuav tsum muaj cov khoom tawg-pov thawj:

Txhawm rau kom muaj kev nyab xeeb thiab siv tau zoo ntawm cov flowmeter (xws li electromagnetic flowmeter), nws yog ib qho tsim nyog los tshuaj xyuas seb qhov kev siv ib puag ncig ntawm cov khoom tawg-pov thawj flowmeter puas yog raws li tus neeg siv cov khoom pov thawj tawg, thiab thaum lub sijhawm teeb tsa thiab siv, Kev siv cov khoom siv hluav taws xob tawg hauv lub tebchaws yuav tsum tau ua nruj me ntsis, thiab tus neeg siv yuav tsum tsis txhob hloov cov kev sib txuas ntawm cov khoom tawg-pov thawj los ntawm nws tus kheej, thiab yuav tsum tsis txhob qhib qhov ntsuas ntawm qhov xav tau.

8, Cov kev xav tau ntawm cov dej ntws: qhov kev xaiv yog nyob rau hauv qhov ntsuas dej ntws los tiv thaiv kev ua haujlwm dhau los kom ntseeg tau qhov tseeb zoo thiab ua kom lub neej ua haujlwm zoo.