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System and method for fine treatment of condensation water

A condensate fine treatment and condensate technology, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, ion exchange water/sewage treatment, etc., can solve problems such as unit outage and prone to failure, Achieve the effects of saving floor space, increasing potential safety hazards, and improving water quality

Active Publication Date: 2015-02-25
CHINA HUADIAN ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By setting the valveless bypass, it effectively solves the problem that the traditional valved bypass is prone to failure and causes the unit to stop running.

Method used

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  • System and method for fine treatment of condensation water

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 of the present invention: a condensate polishing system, including a pipeline inlet 1, a pipeline outlet 5, a cation exchanger 2, an anion-cation mixed ion exchanger 3 and a filter 4, a pipeline inlet 1, a cation exchanger 2. Anion and cation mixed ion exchanger 3, filter 4 and pipeline outlet 5 are connected in series through the connecting pipeline in sequence, a booster pump 7 is arranged on the connecting pipeline between filter 4 and pipeline outlet 5, and pipeline inlet 1 The connection pipeline between the cation exchanger 2 and the valve 16 and the valve 3 A8 are provided, and the connection pipeline between the cation exchanger 2 and the anion and cation mixed ion exchanger 3 is provided with a valve ten A23 and a valve eleven A24, and the cation A resin catcher 20 is arranged between the exchanger 2 and the valve ten A23, and a valve four A9 and a valve six 10 are arranged on the connecting pipeline between the anion and cation mixed ion exchanger ...

Embodiment 2

[0046] Embodiment 2 of the present invention: a condensate polishing system, including a pipeline inlet 1, a pipeline outlet 5, a cation exchanger 2, an anion-cation mixed ion exchanger 3 and a filter 4, a pipeline inlet 1, a cation exchanger 2. Anion and cation mixed ion exchanger 3, filter 4 and pipeline outlet 5 are connected in series through the connecting pipeline in sequence, a booster pump 7 is arranged on the connecting pipeline between filter 4 and pipeline outlet 5, and pipeline inlet 1 The connection pipeline between the cation exchanger 2 and the valve 16 and the valve 3 A8 are provided, and the connection pipeline between the cation exchanger 2 and the anion and cation mixed ion exchanger 3 is provided with a valve ten A23 and a valve eleven A24, and the cation A resin catcher 20 is arranged between the exchanger 2 and the valve ten A23, and a valve four A9 and a valve six 10 are arranged on the connecting pipeline between the anion and cation mixed ion exchanger ...

Embodiment 3

[0062] Embodiment 3 of the present invention: a condensate polishing system, comprising a pipeline inlet 1, a pipeline outlet 5, a cation exchanger 2, an anion-cation mixed ion exchanger 3 and a filter 4, a pipeline inlet 1, a cation exchanger 2. Anion and cation mixed ion exchanger 3, filter 4 and pipeline outlet 5 are connected in series through the connecting pipeline in sequence, a booster pump 7 is arranged on the connecting pipeline between filter 4 and pipeline outlet 5, and pipeline inlet 1 The connection pipeline between the cation exchanger 2 and the valve 16 and the valve 3 A8 are provided, and the connection pipeline between the cation exchanger 2 and the anion and cation mixed ion exchanger 3 is provided with a valve ten A23 and a valve eleven A24, and the cation A resin catcher 20 is arranged between the exchanger 2 and the valve ten A23, and a valve four A9 and a valve six 10 are arranged on the connecting pipeline between the anion and cation mixed ion exchanger...

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Abstract

The invention discloses a system and method for fine treatment of condensation water. The system comprises a pipeline inlet, a cation exchanger, a cation-anion exchanger, a filter, a booster pump and a pipeline outlet which are connected in series in sequence through connecting pipelines; a valve 1 and a valve 3 are arranged between the pipeline inlet and the cation exchanger; a valve 4 and a valve 6 are arranged between the cation-anion exchanger and the filter; a valve 7 is arranged between the filter and the booster pump; a valve 8 is arranged on the connecting pipeline between the booster pump and the pipeline outlet; and the pipeline inlet is communicated with the pipeline outlet through a valveless bypass. According to the system and the method, metal corrosion products and suspended solids can be effectively removed, ion exchange resin can be protected, the condition for putting the ion exchangers into operation can be met as soon as possible, the time for flushing the pipelines is shortened, and the waste of water resources is reduced; and tiny resin particles can be effectively captured after the ion exchangers are normally operated, so that the operation safety of two thermal devices is kept.

Description

technical field [0001] The invention relates to a condensate fine treatment system and a condensate fine treatment method, belonging to the field of industrial water treatment. Background technique [0002] For conventional large-capacity supercritical and above thermal power units, the condensate polishing treatment usually adopts: a pre-filter plus a high-flow anion-yang mixed ion exchanger for water purification. The setting of the pre-filter is mainly because the ion exchange resin in the high-flow anion-cation mixed ion exchanger is very sensitive to iron (the suspended solids in the condensed water are mainly iron oxides). If the content of iron suspended solids in the condensed water is too high, it will cause It causes "poisoning" of the ion exchange resin, affects the performance and service life of the ion exchange resin, and brings unnecessary economic losses (currently, these resins are imported products, and a replacement will cost several million yuan). [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F1/42
Inventor 沈建永王正平沈明忠王建华周小琴高占奎
Owner CHINA HUADIAN ENG
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