Concentration and crystallization treatment system and method of blow-down water of boiler drum

A technology of concentrated crystallization and boiler steam drum, which is applied in water/sewage treatment, heating water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of water waste, high-grade energy loss, etc., and achieve economical improvement , to achieve recycling, to achieve the effect of energy recovery

Inactive Publication Date: 2016-03-30
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

Taking a 300MW condensing steam generator set as an example, the evaporation capacity of the boiler is 1000t / h, if the sewage discharge rate is 1%, the annual sewage discharge volume is 8.76×10 4 t, the direct discharge of these high-temperature and high-pressure steam drum sewage not only wastes water sources, but also causes a large amount of high-grade energy to be lost

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  • Concentration and crystallization treatment system and method of blow-down water of boiler drum

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] A concentrated crystallization treatment system for boiler drum sewage, which consists of a steam drum 1, a sewage control valve 2, a booster pump 3, a reactor water inlet control valve 4, a supercritical water separation reactor 5, a heater 6, a decompression Valve I7, salt discharge control valve 8, pressure reducing valve II9 and salt collection device 10; the steam drum 1, sewage control valve 2, booster pump 3, reactor water inlet control valve 4 and supercritical water separation reaction The devices 5 are connected in sequence, and the supercritical water separation reactor 5 is covered with a heater 6; the upper outlet of the supercritical water separation reactor 5 is divided into two paths, one of which is connected to the steam drum 1 through a pressure reducing valve I7, and the other through a pressure reducing valve I7. The pressure reducing valve ...

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Abstract

The invention belongs to the technical field of cyclic recycling and utilization of power station water treatment and resource energy sources and particularly relates to a concentration and crystallization treatment system and method of blow-down water of a boiler drum. The system is composed of a steam drum, a blow-down control valve, a booster pump, a reactor water inlet control valve, a supercritical water separation reactor, a heater, a decompression valve I, a salt discharging control valve, a decompression valve II and a salt collection device. With the adoption of the concentration and crystallization treatment system and method, under the condition that any catalyst is not added, the separation of salt and water is realized; and meanwhile, the cyclic recycling of the blow-down water and the recycling of the energy are realized, and a novel green, pollution-free and efficient method is provided for treating the continuous blow-down water of a steam boiler.

Description

technical field [0001] The invention belongs to the technical field of power station water treatment and resource energy recycling and utilization, and in particular relates to a concentrated crystallization treatment system and method for boiler steam drum sewage. Background technique [0002] At present, with the growth of my country's population and the acceleration of urbanization, the utilization of water resources has basically approached its supply, and the phenomenon of water crisis has become increasingly apparent. Coupled with the continuous increase of people's domestic and industrial water consumption, the supply of water resources is unsustainable, and the pollution of the water environment is getting worse. Only by developing the circular economy of water resources and realizing the recycling of waste water can we truly protect the water environment and reduce water pollution. [0003] The continuous blowdown of boilers is not only large in quantity, but also ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/02
CPCC02F1/02C02F2001/5218
Inventor 张乃强岳国强许尧曹琦蒋东方朱忠亮吕法彬徐鸿
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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