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Condensate polisher water quality on-line monitoring and control method for power station

A technology of condensate polishing treatment and control method, which is applied in the direction of flocculation/sedimentation water/sewage treatment, test water, material inspection products, etc., and can solve the problems of affecting the water quality of feed water and boiler water, leakage of chlorine ions in effluent, and insufficient effectiveness.

Active Publication Date: 2008-03-19
EAST CHINA ELECTRIC POWER TEST & RES INST +1
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Problems solved by technology

[0006] The above control indicators for the coagulation bed operation end point are not effective enough for judging the failure end point of the coagulation bed. Accurate judgment and effective control of the water quality of the effluent can easily lead to the leakage of chlorine ions in the effluent, which will affect the quality of the feed water and boiler water

Method used

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  • Condensate polisher water quality on-line monitoring and control method for power station
  • Condensate polisher water quality on-line monitoring and control method for power station
  • Condensate polisher water quality on-line monitoring and control method for power station

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Embodiment 1

[0046] Unit 2 of Shanghai Wujing Second Power Generation Co., Ltd. is a 600MW thermal power generation unit manufactured by my country. The boiler is a 2008t / h subcritical control circulation drum boiler designed and manufactured by Shanghai Boiler Factory, the model is SG-20081.7.S-M901. The steam turbine is a 600MW subcritical, intermediate reheat, four-cylinder, four-exhaust, single-shaft, condensing steam turbine manufactured by Shanghai Steam Turbine Co., Ltd. in cooperation with Westinghouse in accordance with the technology of Westinghouse. The model is N600-16.7 / 538.

[0047] The generator set is a QFSN-600-650-2 water-hydrogen-hydrogen turbine generator manufactured by Shanghai Electric Machinery Factory, and the generator model is QRSN-600-2. The unit control system selects the INFI-90 microcomputer distributed control system provided by Bailey Company of the United States. The condensate polishing equipment is manufactured by the American GRAVER WATER water treatme...

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Abstract

The present invention provides an online monitoring method for the quality of the produced water after refining the condensation water. The method includes an online monitoring on the PH value of the produced water after refining the condensation water. The present invention can monitor and control online on the quality of the produced water after refining the condensation water of the electricity station efficiently, stably, and sensitively.

Description

technical field [0001] The invention relates to a method for on-line monitoring and controlling the water quality of condensed water polishing treatment in a power station. Background technique [0002] At present, all volatile treatment (AVT) is mainly used for feed water treatment of 300MW and above units in my country, and phosphate and full volatile treatment are mostly used for boiler water treatment. Since the 1980s, the once-through furnace has gradually adopted the combined treatment method of feed water oxygenation treatment (OT). This technology has been proven to effectively reduce the iron content of boiler feed water, reduce the scaling rate of the boiler, prolong the boiler chemical cleaning cycle and condensation The operation cycle of water polishing mixed bed (hereinafter referred to as "coagulated bed") is an economical and efficient boiler feed water treatment method. The principle of water oxygenation treatment (OT) is that under the condition of pure wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18C02F1/52
Inventor 王安宁徐岚龚秋霖游喆刘文强
Owner EAST CHINA ELECTRIC POWER TEST & RES INST
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