Title:
METHOD FOR OPERATING BOILER
Document Type and Number:
WIPO Patent Application WO/2024/084874
Kind Code:
A1
Abstract:
Water is softened in a water-softening device 16, is deoxidized in a deoxidization device 17, is retained in a water supply tank 11, and is supplied to a boiler 20 from the water supply tank 11 through a water supply path 13. The boiler 20 retains water supplied from the water supply path 13 as boiler water, and heats the boiler water by passing the same through a water pipe to generate steam. During this process, a water treatment agent containing a pH-adjusting agent, sodium silicate, and a sodium polyacrylate having a mass-average molecular weight of 2,000-40,000 is added from a drug supply device 40 to the water that is supplied from the water supply path 13 to the boiler 20. As a result, the pH of the boiler water is controlled in an alkaline range, and the sodium silicate and the polyacrylic acid compound having a mass-average molecular weight in the above-described range coexist in the boiler water.
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Inventors:
NINOMIYA TAKASHI (JP)
TOKUMI AI (JP)
NAKANO TAKESHI (JP)
KIKUCHI YOSUKE (JP)
MATSUTOMO SHINJI (JP)
TOKUMI AI (JP)
NAKANO TAKESHI (JP)
KIKUCHI YOSUKE (JP)
MATSUTOMO SHINJI (JP)
Application Number:
PCT/JP2023/033824
Publication Date:
April 25, 2024
Filing Date:
September 19, 2023
Export Citation:
Assignee:
MIURA CO LTD (JP)
International Classes:
C02F5/10; C02F5/00; C23F11/18; C23F14/02; F22B37/56
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