Sistemi ad acqua di raffreddamento

In una centrale termoelettrica, è indispensabile un sistema di raffreddamento efficace per trasformare il vapore utilizzato in condensa liquida (condensatore) a valle della turbina. Per un funzionamento efficiente del sistema di raffreddamento è necessario un complesso trattamento chimico dell’acqua. Le torri di raffreddamento implicano elevati costi di impianto ed esercizio e devono essere sottoposte a una manutenzione adeguata per evitare costosi periodi di inattività dell’intera centrale elettrica. I problemi principali sono la formazione di incrostazioni, la corrosione e la crescita biologica di alghe e batteri.

Keyfacts dell’applicazione

Applicazione

3 applicazioni (1. Controllo dell’ossigeno disciolto OD, 2. Controllo del valore pH e della conducibilità, 3. Controllo della conducibilità) in vari punti di misura

Settore

Centrali elettriche a ciclo combinato

Requisiti principali

Incrostazioni nella caldaia, corrosione e crescita biologica di alghe e batteri.

Acidi e biocidi nel fluido.

Parametri di misura

pH, conducibilità e Redox

Perché Knick?
Knick offre un ampio sistema modulare di armature realizzate con materiali altamente resistenti alla corrosione e sensori adatti a queste condizioni difficili. L’uso versatile del trasmettitore industriale Stratos Multi consente di monitorare diversi parametri con lo stesso dispositivo.

Prodotti in questo campo

Sensori

Sensori analogici e sensori digitali Memosens per la misurazione di ph, Redox, conducibilità e ossigeno

SE555 Sensore pH | VP | 120 mm | Ex | Sterilizzabile | Per fluidi aggressivi

Codice prodotto:

SE555X/1-NVPN

Campo di misura : 0 … 14 pH

Raccordo a processo: PG 13,5

WA130 SensoGate Armatura retrattile | Modulare | Pneumatica | Per Uniclean e Unical

Codice prodotto:

WA130

Omologazioni: ATEX

Protezione da esplosioni: Sì

Stratos Multi E401N Analizzatore multiparametrico | Sensori Memosens/analogici | 1 canale | HART | 2 uscite 4…20 mA

Codice prodotto:

E401N.010

Comunicazione (uscita digitale): HART

Uscite corrente: 2 uscite

Settori industriali interessati e applicazioni in questo campo

Energia

Nelle centrali elettriche, l’acqua viene utilizzata in molti processi con requisiti completamente diversi, ad esempio per la generazione di vapore, il raffreddamento e la depurazione dei gas combusti.

Sistemi di scambio ionico

Misurazione del valore pH, dell’ossigeno disciolto e della conducibilità nell’acqua di alimentazione caldaie, nel vapore e nella condensa delle turbine a gas a ciclo combinato delle centrali elettriche.

Monitoraggio dei generatori di vapore

Poiché i generatori di vapore svolgono funzioni critiche per le applicazioni e i tempi di inattività o di sostituzione sono estremamente costosi, è importante evitare i danni dovuti all’usura monitorando correttamente la qualità dell’acqua.

Desolforazione dei gas combusti

Misurazione del valore pH nel pre-scrubber, nel neutralizzatore e nello scrubber a ossido di calcio come parte del processo di desolforazione dei gas combusti nelle centrali elettriche.

Centrale a ciclo combinato

Misurazione del valore pH, dell’ossigeno disciolto e della conducibilità nell’acqua di alimentazione caldaie, nel vapore e nella condensa delle turbine a gas a ciclo combinato delle centrali elettriche.

Scarica ora

Panoramica delle applicazioni e delle soluzioni di prodotto specifiche per i diversi settori delle centrali elettriche.

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Nessun prodotto trovato.