Dosing device for improving pH value of boiler supply water

A technology of dosing device and boiler feed water, applied in the field of water treatment, can solve the problems of increased metal corrosion rate, serious corrosion consequences, and it is difficult to form a protective film on the metal surface, and achieves the effect of less irritating odor

Inactive Publication Date: 2012-12-19
KUNMING CELLULOSE FIBERS CO LTD
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Problems solved by technology

The overall reaction is: Fe+2H2O+2CO2═Fe(HCO3)2+H2↑, it is not easy to form a protective film on the metal surface, so the metal corrosion rate will increase significantly, and the corrosion consequences will be more serious

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  • Dosing device for improving pH value of boiler supply water

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Embodiment Construction

[0013] Such as figure 1 As shown, the dosing device for improving the PH value of boiler feed water of the present invention consists of a medicine storage tank I10, a medicine storage tank II11, a pressure reducing valve 3, an on-line instrument 5, a cooler 3, a metering pump I12 and a metering pump II13, a plurality of cut-off Composed of valves and pipelines; medicine storage barrel Ⅰ11 is connected to one end of the stop valve Ⅵ9 through a pipeline, the other end of the stop valve Ⅵ9 is connected to the stop valve Ⅴ8 through a pipeline, and the condensate pipe is connected between the stop valve Ⅴ8 and the stop valve Ⅵ9; metering pump Ⅰ12 and metering Pump Ⅱ13 is symmetrically arranged, metering pump Ⅰ12, metering pump Ⅱ13 are connected to shut-off valve Ⅲ6 through pipelines, and shut-off valve Ⅲ6 is connected to boiler feed jellyfish pipe 18; metering pump Ⅰ12, metering pump Ⅱ13 are connected to dosing control panel 17; dosing control panel 17 Connect with the online inst...

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Abstract

The invention relates to a dosing device for improving the pH value of boiler supply water, which consists of a drug storage barrel I, a drug storage barrel II, a reducing valve, an on-line instrument, a cooler, a metering pump I, a metering pump II, a plurality of stop valves and a pipeline. An opening joint pipe, a valve, reduced pressure cooling and the on-line instrument of a boiler supply water pipeline are controlled, so that the dosage concentration can be conveniently controlled, the preset best PH value range can be reached, the PH values of boiler supply water, steam and drained water can be improved and stabilized, and metal materials of a boiler and a whole water supply and return pipeline are protected from being corroded. Meanwhile, automatic dosage control can be realized, and the detection result of the pH value of the boiler supply water can be transmitted to a control room to be monitored and managed in real time.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a dosing device for increasing the pH value of boiler feed water. Background technique [0002] The current GB / T12145 standard stipulates that the water quality standard pH (25°C) when the steam boiler is treated with chemical water inside the pot or chemical water outside the pot is 8.8-9.3 for the feed water, and 9-11 for the pot water; The "Water Quality Standard for Low-Pressure Boilers (GB1576-2001)" stipulates that when steam boilers or hot water boilers are treated with chemical water inside the boiler or chemical water outside the boiler, the water quality standard pH (25°C) is greater than 7 for the feed water, and the boiler water 10-12. However, after conventional chemical water treatment (demineralized water) undergoes thermal deoxygenation, the pH value of the boiler feed water is around 7 or less than 7, which does not meet the national standard. The boile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/66
Inventor 秦伦斌王速跃
Owner KUNMING CELLULOSE FIBERS CO LTD
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