Water treatment and method of water treatment

Details Water treatment and method of water treatment Water treatment and method of water treatment

C - Chemistry, Metallurgy

23

F

C23F 11/18 (2006.01) C02F 1/58 (2006.01) C02F 1/70 (2006.01) C02F 5/00 (2006.01) C02F 5/10 (2006.01) C02F 5/12 (2006.01) C23F 11/12 (2006.01) C23F 14/02 (2006.01)

Patent

CA 2603426

A water treatment for preventing the heat transfer surface of a boiler tube from general or local corrosion and attaining excellent heat transfer characteristics, which is composed of water as the main component, a film forming agent for forming a film on the heat transfer surface of a boiler tube, a deoxidizing agent, a scale inhibitor, and a pH regulator. By pouring this water treatment into boiler feeding, the prevention of a boiler tube from corrosion and the inhibition of scaling can be attained with good balance. According to the invention, a film for preventing the heat transfer surface of a boiler tube from corrosion is formed from the film forming agent; the oxygen dissolved in boiler feeding is removed with the deoxidizing agent; the scaling on the heat transfer surface of a boiler tube is inhibited with the scale inhibitor; and the pH of boiler feeding is regulated, whereby the heat transfer surface of a boiler tube can be prevented from general or local corrosion and excellent heat transfer characteristics can be attained.

Traitement de l'eau destiné à empêcher la corrosion générale ou locale de la surface de transfert de chaleur d'un tube de chaudière et à obtenir d'excellentes caractéristiques de transfert de chaleur. Le traitement comprend de l'eau comme principal composant, un agent filmogène destiné à former un film sur la surface de transfert de chaleur d'un tube de chaudière, un agent désoxydant, un inhibiteur de tartre, et un régulateur de pH. En versant ce traitement de l'eau dans l'alimentation de la chaudière, il est possible de concilier la prévention de la corrosion d'un tube de chaudière et l'inhibition de l'entartrement. Selon l'invention, un film destiné à empêcher la corrosion de la surface de transfert de chaleur d'un tube de chaudière est formé à partir de l'agent filmogène ; l'oxygène dissous dans l'alimentation de la chaudière est éliminé par l'agent désoxydant; l'entartrement sur la surface de transfert de chaleur d'un tube de chaudière est inhibé par inhibiteur de tartre ; et le pH de l'alimentation de la chaudière est régulé, en conséquence de quoi la corrosion générale ou locale de la surface de transfert de chaleur d'un tube de chaudière peut être empêchée et d'excellentes caractéristiques de transfert de chaleur peuvent être obtenues.

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