Logic control and method of high-energy water recovery system adapting to deep peak regulation

A logic control and water recovery technology, applied in the direction of separation methods, control systems, chemical instruments and methods, etc., to achieve the effect of reducing the amount of operation, stable and safe recovery, and improving economic efficiency

Active Publication Date: 2021-09-28
XIAN THERMAL POWER RES INST CO LTD +1
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Problems solved by technology

However, until now, there has been no public report on the logic control of high-energy water recovery systems

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  • Logic control and method of high-energy water recovery system adapting to deep peak regulation

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0021] The schematic diagrams of the structures according to the disclosed embodiments of th...

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Abstract

The invention discloses a logic control and method of a high-energy water recovery system adapting to deep peak regulation. Logic control objects and related protection settings of key valves such as a high-energy water electric isolating valve, a high-energy water regulating valve, a high-energy water to deaerator steam side regulating valve, a cooling water to flash tank regulating valve, a flash tank outlet water superheat degree regulating valve, a flash tank to deaerator water outlet regulating valve and a flash tank emergency drain electric valve in the high-energy water recovery system are stipulated. According to the method, high-energy water can be more stably and safely recycled after a once-through boiler is converted into wet state operation, and the economical efficiency of a unit in the deep peak regulation wet state operation and starting processes is improved.

Description

technical field [0001] The invention belongs to the field of heat supply and energy saving of thermal power generation equipment, and relates to a logic control and method of a high-energy water recovery system suitable for deep peak regulation. Background technique [0002] At present, affected by factors such as power peak regulation, the load rate of the unit is reduced, and the dry-wet state conversion phenomenon will appear in the supercritical unit. At this time, the steam at the boiler start-up steam-water separator enters the superheated steam system of the boiler, and the steam will enter the water storage tank of the body. Usually, this part of the start-up water is introduced into the expansion vessel of the body, and when the water quality is unqualified, it is directly discharged, resulting in heat-mass energy loss. When the unit operates at low load in this way, the heat consumption rate of the unit is high and the working fluid is wasted. For the consideratio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B35/00F22B37/50F22B37/78F22D1/50
CPCF22B35/00F22B37/50F22B37/78F22D1/50
Inventor 曾立飞屈杰马汀山宁哲居文平陈黎范庆伟石慧潘渤
Owner XIAN THERMAL POWER RES INST CO LTD
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