Scale-proofing method of boiler

A technology for boiler and scale inhibition, which is applied in the field of boiler scale inhibition and can solve problems such as unsatisfactory performance

Inactive Publication Date: 2006-11-01
SHANGHAI WANSEN WATER TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these antiscalants can solve the scaling problem of industrial water treatment to a certain extent, there are still many defects, such as unsatisfactory performance, etc.

Method used

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Examples

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Comparison scheme
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Embodiment Construction

[0019] The boiler scale inhibition method of the present invention can also be carried out at normal temperature. In this embodiment, a temperature of 25° C. is selected. If the temperature is properly heated, a faster effect can be achieved.

[0020] First of all, extract a small amount of boiler water at the dosing port of the boiler, test the pH value, hardness, dissolved oxygen, salt content, iron content, oil content and other indicators of the water, and calculate the water treatment scale inhibitor to be added according to the obtained data The concentration of the agent;

[0021] Then, use the deaeration port of the boiler or the outlet of the soft water tank as the dosing port, and add boiler water treatment scale inhibitor, which mainly contains 10-20% of 1-aminopyrrolidine, 20-30% of hydroxyethylidene diphosphate, sodium sulfite 1-3%, cyclohexylamine 5-10%, and the balance is deionized water.

[0022] Finally, monitor the effect of water treatment antiscalant. Acc...

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Abstract

A boiler scale-inhibiting method is carried out by inspecting, feeding medicine and monitoring. Scale inhibitor consists of 1-amino-pyrrolidine, monometallic sodium orthophosphate, sodium sulfite and ethylenimine. It is fast and efficient.

Description

technical field [0001] The invention belongs to the fields of chemical industry and environmental protection, and relates to a water treatment method. Furthermore, the invention relates to a boiler scale inhibition method. Background technique [0002] Boiler water contains a large amount of undissolved solids, mainly composed of Ca (calcium) and Mg (magnesium), which form scales, which can affect heat transfer and cause the temperature of the boiler body to rise until overheating, deformation and softness, foaming and cracks. [0003] Moreover, due to dissolved oxygen, concentrated chlorine corrosion, acid corrosion, electrolyte corrosion, condensation pipe corrosion and other reasons, the boiler will produce rust layer, pipe perforation, pipe rupture, thinning, etc. Therefore, regular boiler water treatment is required to reduce energy loss or fuel loss, extend boiler life, ensure optimum heat transfer, reduce unnecessary shutdowns or repairs, and reduce pickling frequency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/04C02F5/10C02F5/12
Inventor 沈志昌
Owner SHANGHAI WANSEN WATER TREATMENT CO LTD
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