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Station boiler make-up water treatment method

A treatment method and technology for power station boilers, which are applied in the fields of water/sewage multi-stage treatment, degassed water/sewage treatment, water/sludge/sewage treatment, etc. Good economy, low energy consumption, mature and reliable technology

Inactive Publication Date: 2014-04-23
陕西大唐新能电力设计股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main problem to be solved by the present invention is to provide a power plant boiler feed water treatment method to solve the problem that the existing boiler feed water treatment method adopts reverse osmosis treatment with high self-water rate and large energy consumption

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Embodiment 1

[0022] see figure 1 and figure 2 , the invention provides a method for treating power plant boiler feed water, comprising the following specific steps:

[0023] Step A: Filter the raw water through a double-media filter;

[0024] Step B: feeding the water treated in step A into the cation exchanger 1 to replace the cations in the water;

[0025] Step C: supply the water treated in step B to the carbon remover 2 to remove free carbon dioxide in the water;

[0026] Step D: supply the water treated in step C to the anion exchanger 5 to replace the anions in the water;

[0027] Step E: supply the water treated in step D to primary desalinated water.

[0028] Preferably, after step D, there is also a step of supplying the water treated in step D to the mixed ion exchanger, and the water treated by the mixed ion exchanger is supplied to the primary desalinated water.

[0029] If the power plant boiler feed water treatment method of the present invention is used in medium and l...

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Abstract

The invention discloses a station boiler make-up water treatment method which comprises the following steps: A. filtering raw water through a dual media filter; B. supplying the water treated by the step A into a cation exchanger to replace cations in the water; C. supplying the water treated by the step B into a decarbonizing device to remove free carbon dioxide in the water; D. supplying the water treated by the step C into an anion exchanger to replace anions in the water; and E. supplying the water treated by the step D into primary desalted water. The quality of the effluent water is higher than that of reverse osmosis effluent water; and the method has the advantages of mature and reliable technique, low auxiliary water ratio, low operating cost and favorable economical efficiency, and is worthy of popularization and use in water-deficient areas.

Description

technical field [0001] The invention belongs to the field of boiler make-up water treatment, and in particular relates to a method for treating power plant boiler make-up water. Background technique [0002] The existing self-contained power plant boiler make-up water treatment processes mainly include ion exchange method and reverse osmosis membrane method. [0003] The first type is mainly used in low-pressure units, the main process of the boiler feed water method: raw water→dual-media filter→reverse osmosis device→sodium ion exchanger→softened water [0004] The second type is mainly used in medium and high pressure units and above. The main process of the boiler feed water method: raw water→dual media filter→reverse osmosis device→carbon remover→mixed ion exchanger→demineralized water [0005] From the above two treatment processes, it can be seen that due to the application of boiler feed water with different pressure levels, the two treatment methods are different in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/42C02F1/20
Inventor 王红斌曾祥涛吴文娟
Owner 陕西大唐新能电力设计股份有限公司