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Condensed water fine treatment system of large H-grade peak regulation gas-steam combined cycle once-through waste heat boiler

A technology of condensate polishing and combined cycle, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve complex operation and maintenance, large floor area, and large number of equipment and other problems, to achieve the effect of less equipment, less land occupation, and less operation and maintenance workload

Pending Publication Date: 2021-03-12
华能南通燃机发电有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the H-level peak-shaving gas-steam combined cycle once-through waste heat boiler, this type of system has a large number of equipment, a large area, high operating costs, and complicated operation and maintenance.

Method used

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  • Condensed water fine treatment system of large H-grade peak regulation gas-steam combined cycle once-through waste heat boiler

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Experimental program
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Effect test

Embodiment 1

[0021] A large-scale H-level peak-shaving gas-steam combined cycle DC waste heat boiler condensate polishing system of the present invention includes an iron removal filtration system and a desalination system; the iron removal filtration system adopts a strong magnetic iron removal filtration process; the The desalination system adopts the ion exchange desalination process. The combined treatment process of strong magnetic iron removal and ion exchange desalination is adopted.

[0022] Considering the long operating cycle of the strong magnetic iron removal filter and the enough downtime of the peak-shaving unit to clean the regenerative filter, the iron-removal filter system is equipped with a strong 1×100% capacity for each H-level peak-shaving gas-steam combined cycle unit. Magnetic iron removal filter. In the present invention, a strong magnetic iron removal filter is set. Compared with the traditional electromagnetic iron removal filter, there is no power consumption du...

Embodiment 2

[0025] An embodiment of the present invention is a large-scale H-level peak-shaving gas-steam combined cycle once-through waste heat boiler condensate polishing system, refer to figure 1 Among them, it includes a strong magnetic iron removal filter 1, a fine treatment high-speed mixed bed 2, a resin trap 3, and a recirculation pump 4.

[0026] refer to figure 1 The condensate fine treatment process system shown includes iron removal filter system and desalination system. The equipment for the iron removal system is a strong magnetic iron removal filter 1 with 100% capacity, and the equipment for the desalination system is two fine treatment high-speed mixed beds 2 with 100% capacity and a recirculation pump 4 . The two fine treatment mixed beds 2 are connected in parallel, one for use and the other for standby, and the outlet of each fine treatment high-speed mixed bed 2 is provided with a resin catcher 3, which is used to intercept and capture the broken resin that may be co...

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Abstract

The invention discloses a condensed water fine treatment system of large H-grade peak regulation gas-steam combined cycle once-through waste heat boiler. The condensation water precision treatment system comprises an iron removal filtering system and a desalting system. The iron removal filtering system is provided with a strong magnetic iron removal filter; and the desalting system is provided with two fine treatment high-speed mixed beds. By adopting the configuration of the strong magnetic iron removal filter and the fine treatment high-speed mixed bed system, fewer units are employed, thearrangement occupied area is small, the operation cost is low, and the operation and maintenance are simple.

Description

technical field [0001] The invention belongs to the technical field of chemical water treatment design in power plants, and in particular relates to a large-scale H-level peak-shaving gas-steam combined cycle once-through waste heat boiler condensate polishing system. Background technique [0002] The working medium and water circulation system characteristics of the once-through boiler determine its higher feed water quality requirements, and put forward strict requirements on the capacity of condensate desalination and fine treatment and filtration and iron removal. Requirements for filtration and iron removal treatment have been significantly increased. Setting up the condensate polishing system can remove impurities caused by thermal system corrosion, condenser leakage, supplementary desalinated water, etc., so as to ensure that the water quality of the unit is improved, the corrosion degree of the unit is reduced, the service life of the unit is extended, and the start-...

Claims

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Application Information

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IPC IPC(8): C02F9/12
CPCC02F1/48C02F1/42C02F2001/427
Inventor 张国盛陈蔡辉王信海薛晓丹陈育森蒋淡宁游晓宏沙海伟许玮韩倩倩董攀杨学才
Owner 华能南通燃机发电有限公司