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Steam-water optimization control method for heat recovery system under deep peak regulation of large thermal power units

A technology for heat recovery systems and thermal power units, which is applied in chemical instruments and methods, separation methods, and control of water supply. The effect of the indicator

Active Publication Date: 2019-09-27
STATE GRID HEBEI ENERGY TECH SERVICE CO LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a steam-water optimization control method of the heat recovery system under the deep peak regulation of large-scale thermal power units, which solves the problem of the load response rate of the unit in a frequency modulation and AGC and the unit load after high load The problem of soaring ensures the long-term efficient, economical, safe and stable operation of the unit

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  • Steam-water optimization control method for heat recovery system under deep peak regulation of large thermal power units
  • Steam-water optimization control method for heat recovery system under deep peak regulation of large thermal power units
  • Steam-water optimization control method for heat recovery system under deep peak regulation of large thermal power units

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Embodiment Construction

[0025] The invention provides a steam-water optimization control method of the heat recovery system under the deep peak regulation of large-scale thermal power units. Through this method, the two detailed assessment indicators can be improved without affecting the economical efficiency of the unit. When the heat recovery system is throttling and reversed, the load of the unit can be quickly reduced to avoid overrunning of the unit and improve the safety of the unit. The present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] figure 1 For the control logic of the throttling function of the recuperation system, the steam-water optimization control method of the recuperation system is a load control performed within a reasonable and safe range of parameters such as the water level of the deaerator, the water level of the hot well of the condenser, and the condensate flow rate. . In order to e...

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Abstract

The invention relates to the technical field of automatic control of large thermal power plants, in particular to a regenerative system vapor water optimal control method under deep peak shaving of alarge thermal power generating unit. The method can improve two specification assessment indexes on the basis of not influencing economy of the unit; and when the unit generates high solution under high load, the load of the unit is quickly reduced through throttling reverse adjustment of a regenerative system, so that the overload operation of the unit is prevented, and the safe and stable operation of the unit is guaranteed.

Description

technical field [0001] The invention relates to the technical field of automatic control of thermal power plants, in particular to a steam-water optimization control method of a heat recovery system under deep peak regulation of a large thermal power unit. Background technique [0002] In recent years, the level of automation of the power system has become higher and higher, and the development of society has also put forward higher requirements for the quality of power supply. North China Power Grid Co., Ltd. announced the implementation rules (trial) and Implementation Rules (Trial) for Grid-connected Operation Management of Power Plants in North China (hereinafter referred to as "two rules"). The implementation of the two rules puts forward stricter requirements on the adjustment quality of the coordinated control system. At present, many units that have been put into operation, because of coal quality, equipment itself and other reasons, have affected their load response...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22D1/50F22D1/34F22D5/26
Inventor 殷喆彭钢刘永红张洪涛高志存徐欣航
Owner STATE GRID HEBEI ENERGY TECH SERVICE CO LTD