inlocuire statii de protectie catodica - Petroleumclub.ro
inlocuire statii de protectie catodica - Petroleumclub.ro
inlocuire statii de protectie catodica - Petroleumclub.ro
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OBIECTIVE• P<strong>ro</strong>tectia impotriva co<strong>ro</strong>ziunii se <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>sfasoara pe urmatoareledirectii:– a. evaluarea starii <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> co<strong>ro</strong>ziune a conductelor;– b. evaluarea starii izolatiei;– c. <st<strong>ro</strong>ng>inlocuire</st<strong>ro</strong>ng>a t<strong>ro</strong>nsoanelor <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> conducta co<strong>ro</strong>data;– d. <st<strong>ro</strong>ng>inlocuire</st<strong>ro</strong>ng>a izolatiei;– e. refacerea sistemului <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> monitorizare a potentialului conductei;– f. masuratori <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> potential;– g. refacerea <st<strong>ro</strong>ng>statii</st<strong>ro</strong>ng>lor <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> injectie <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng> si a sistemului <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> anozi<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> sacrificiu;– h. masuratori <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> stare a instalatiilor;– i. computerizarea datelor culese si alegerea unui sistem <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>monitorizare permanent.
ACCIDENTE DATORATECOROZIUNIINumar <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> acci<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>nteConducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 14 inch Constanta-Baraganu 7Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 20 inch Constanta-Baraganu 77Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 28 inch Constanta-Baraganu 96Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 24 inch Constanta-Midia 84
REMEDIEREA CONDUCTELOR• Determinarea zonelor <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> risc major;• Inspectia cu go<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>vilul inteligent;- subtraversare Dunare si Borcea;- conducte magistrale titei indigen;• Evaluarea rezultatelor;• Inlocuirea conductelor Regionala Constanta;T<strong>ro</strong>nsoane <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> conducta inlocuiteConducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 14 inch Constanta-Baraganu 1 km (5 %)Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 20 inch Constanta-Baraganu 10 km (17 %)Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 28 inch Constanta-Baraganu 12 km (20 %)Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 24 inch Constanta-Midia 21 km (52 %)
SITUATII AVARII COROZIUNEconducta 20 inch 28 inch 24 inch 14 inchanul 1974 1978 1979 19681989 1 3 51990 10 2 51991 19 2 31992 9 6 101993 2 3 41994 4 12 61995 2 1 11996 5 1 61997 5 7 61998 8 51999 1 14 62000 8 52001 1 18 3 12002 4 4 7 12003 1 22004 1 3 12005 3 2 1 22006 2 2 2izolatie impaslitura impaslitura impaslitura benzi autoa<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>zivecp 1975 1979 1990 1969
EVALUAREA STARII DECOROZIUNE• Go<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>vilare inteligenta• Determinare stare conducta prin sondaje;
EVALUARE STARE IZOLATIE• Reabilitare prize potential;• Detectare si eliminare legaturi echipotentiale;• Refacere flanse elect<strong>ro</strong>ziolante;• Reabilitare <st<strong>ro</strong>ng>statii</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>p<strong>ro</strong>tectie</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng>;• Determinare starea izolatiei:- metoda Pearson;- metoda DCVG;-metoda CIPS;
INLOCUIRE IZOLATIEDETERIORATAConducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 14 inch Constanta-Baraganu 10 km (17 %)Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 20 inch Constanta-Baraganu 10 km (17 %)Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 28 inch Constanta-Baraganu 10 km (17 %)Conducta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 24 inch Constanta-Midia 10 km (25 %)
REFACEREA SISTEMULUI DEMONITORIZARE CONDUCTA• Inlocuire prize potential;• Inlocuire anozi <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> sacrificiu;• Inlocuire <st<strong>ro</strong>ng>statii</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> injectie;• Determinarea potentialului conductei;- natural;- inainte <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> reabilitare;- dupa reabilitare.
REVIZUIREA STANDARDELORINTERNE DE PROTECTIE CATODICA• ISTORIC- in anul 1824 Sir Humphrey Davy int<strong>ro</strong>duce anozi <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> zinc <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>sacrificiu si anozi <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> fier pentru p<strong>ro</strong>tectia navelor militare engleze;- in anul 1930 se int<strong>ro</strong>duce p<strong>ro</strong>tectia <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng> a conductelor cu anozi <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>sacrificiu in Canada;- in anul 1933 se <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>termina valorile optime ale potentialului <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>injectie(-850;-1250 mV);- in anul 1937 apare p<strong>ro</strong>cesul <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> galvanizare;- in 1939 se construieste primul sistem <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>p<strong>ro</strong>tectie</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng> cu <st<strong>ro</strong>ng>statii</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>injectie in Bahrain;- in 1940 se int<strong>ro</strong>duce in Romania p<strong>ro</strong>tectia conductelor <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> pet<strong>ro</strong>l;- in anul 1980 incepe p<strong>ro</strong>tectia <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng> a otelului inserat in betonarmat.
REVIZUIREA STANDARDELORINTERNE DE PROTECTIE CATODICACONPET S.A.• 1990 incepe inventarierea <st<strong>ro</strong>ng>statii</st<strong>ro</strong>ng>lor <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>p<strong>ro</strong>tectie</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng> cumonitorizarea starii <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> functionare;• 1991 incepe evaluarea legaturilor echipotentiale;• 1992 incep lucrarile <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> montaj prize <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> potential;• 1993 incep lucrarile <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> montat <st<strong>ro</strong>ng>statii</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>p<strong>ro</strong>tectie</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng> noi;• 1990-1994 se reevalueaza starea conductei fata <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> sol prin masuratoripermanente <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> potential;• 1995-1998 incep masuratori <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>terminare a starii izolatiei prinmetoda CIPS modificata;• 1998 se <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>termina starea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> co<strong>ro</strong>ziune a conductelor la subtraversareDunare si Borcea;• 1994-2004 p<strong>ro</strong>gram <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>inlocuire</st<strong>ro</strong>ng> teava si izolatie;• 2000-2006 masuri <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> imbunatatire a <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>fectelor punctiforme.
DEFECTE DE IZOLATIE• Conducta titei 24 inch Constanta-Midia
INLOCUIRE FLANSEELECTOIZOLANTE• La plecarea conductelor din <st<strong>ro</strong>ng>statii</st<strong>ro</strong>ng>;• La schimbarea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> conducte mai lungi <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 1,2 km.
INLOCUIRE STATII DEPROTECTIE CATODICAToate <st<strong>ro</strong>ng>statii</st<strong>ro</strong>ng>le din Regionala Constanta• - tensiunea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> alimentare :220V ; 50Hz• - curentul maxim absorbit : 11.5A• - tensiunea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> iesire : 0 la 50V reglabila continuu• - curentul <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> iesire : 0 la 40A reglabil continuu , filtrat• - precizia reglarii potentialului prescris: 5%• - amplitudinea virfurilor positive (spyke): 0 V• - anod <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> referinta : cupru – sulfat <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> cupru• - timp <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> raspuns la schimbarea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> semn aperturbatiei: 20 ms• - clasa <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> temperatura a transformatorului : H• - <st<strong>ro</strong>ng>p<strong>ro</strong>tectie</st<strong>ro</strong>ng> la supracurent• - <st<strong>ro</strong>ng>p<strong>ro</strong>tectie</st<strong>ro</strong>ng> la supratemperatura• - <st<strong>ro</strong>ng>p<strong>ro</strong>tectie</st<strong>ro</strong>ng> antiefractie personalizata
INLOCUIRE BORNE DEPOTENTIAL• PROIECT CONPET
INLOCUIRE ANOZI DESACRIFICIU
MASURATORI DE STARE AINSTALATIILOR• POTENTIALUL CONDUCTEI- BIANUAL (PRIMAVARA SI TOAMNA);• STATII DE PROTECTIE CATODICA-LUNAR
COMPUTERIZAREA DATELORCULESE• FUNCTIE DE POTENTIALULCONDUCTELOR SE DECIDE:- evaluarea zonelor cu potential scazut;- <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>terminarea <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>fectelor <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> izolatie si<st<strong>ro</strong>ng>inlocuire</st<strong>ro</strong>ng>a ei;- modificarea parametrilor <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> injectie;- reevaluarea sistemului <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>p<strong>ro</strong>tectie</st<strong>ro</strong>ng> <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng>.
MASURATORI PRIN METODACIPS• Masurarea potentialului conductei fata ladistanta <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> 0,5-1 m;
MASURATORI PRINMETODA DCVG• Metoda consta in <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>terminarea pier<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>rii <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>curent prin injectie <st<strong>ro</strong>ng>catodica</st<strong>ro</strong>ng>, pier<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>redatorata <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>teriorarii izolatiei.
DETERMINAREA REZISTIVITATIISOLULUI• REZISTIVITATEA SOLULUI(ohm-cm)- sub 1000 puternic co<strong>ro</strong>ziv-1000 – 5000 co<strong>ro</strong>ziv- 5000 – 10000 mo<st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>rat co<strong>ro</strong>ziv- peste 10000 putin co<strong>ro</strong>ziv
AGRESIVITATEA SOLULUIStatie nr. Est NordDistantacumulataRezistivitateaaparentaGrad <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng>agresivitate1 788201.82 300982.48 0.00 47.13 Normala2 788160.92 301011.24 50.00 42.10 Normala3 788120.02 301040 100.00 37.07 Normala4 788079.79 301069.68 149.99 32.05 Normala5 788038.47 301094.55 198.22 27.02 Normala6 788001.99 301130.58 249.49 21.99 Normala7 787959.27 301158.98 300.79 16.97 Ridicata8 787919.05 301188.69 350.80 20.49 Normala9 787878.38 301217.65 400.72 24.02 Normala10 787833.75 301240.2 450.73 27.55 Normala11 787785.38 301235.71 499.30 32.08 Normala12 787736.67 301224.44 549.30 36.60 Normala13 787687.63 301214.75 599.29 41.13 Normala14 787638.45 301205.73 649.29 41.56 Normala
DETERMINAREA PH-ULUISOLULUI• Extrem <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> acid sub 4,5• Foarte puternic acid 4,5-5• Puternic acid 5,1-5,5• Mediu acid 5,6-6• Usor acid 6,1-6,5• Neutru 6,7-7,3• Usor alaclin 7,4-7,8• Mediu alcalin 7,9-8,4• Puternic alcalin 8,5-9,0• Extrem <st<strong>ro</strong>ng>de</st<strong>ro</strong>ng> alcalin peste 9,1
MASURAREA INTENSIVA APARAMETRILOR CONDUCTEI• POZITIONARE PRIN GPS ;• CIPS ;• D.C.V.G. ;• ADANCIME .
VA MULTUMIM !
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