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Gas boiler generator set control method, system and device

A technology for generating sets and gas boilers, which is applied in the control of combustion, combustion methods, and superheating temperature, etc., can solve the problems of unstable furnace negative pressure, reduced safety, and large fluctuations in unit load, so as to reduce the disturbance of furnace negative pressure. Effect

Pending Publication Date: 2022-07-05
中国能源建设集团华中电力试验研究院有限公司
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  • Claims
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Problems solved by technology

For this reason, the present invention proposes a control method for a gas boiler generator set. The gas boiler generator set control method solves the problem of large unit load fluctuations and unstable furnace negative pressure during auxiliary machine failure and load reduction, which may lead to furnace deformation, thereby reducing safety. sexual problems

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  • Gas boiler generator set control method, system and device
  • Gas boiler generator set control method, system and device

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Embodiment Construction

[0039] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0040] In the description of the present invention, it should be understood that the related orientation description, such as the orientation indicated by up, down, front, rear, left, right, etc., is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed...

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Abstract

The invention discloses a gas boiler generator set control method, system and device, and the method comprises the following steps: obtaining the tripping information of a fan, and adjusting the tripping state of a fan set according to the tripping information of the fan; the fan unit comprises a first air feeder, a first induced draft fan, a second air feeder and a second induced draft fan; sequentially cutting off the burner groups on the middle layer of the front wall, the upper layer of the rear wall and the upper layer of the front wall, and adjusting the negative pressure of the hearth to be within a preset stable pressure range; the desuperheating water electric stop valve group is closed, and the desuperheating water electric stop valve group is restarted after a preset first holding time length is kept, so that the steam temperature is kept within a preset temperature stable range; and the opening degree of the high-pressure adjusting valve is adjusted to the preset first opening degree position, and the preset second keeping duration is kept, so that the steam amount is kept within the preset steam amount stable range. The control method of the gas boiler generator set solves the problems that the load fluctuation of the generator set is large, the negative pressure of a hearth is unstable and the safety is reduced during auxiliary machine fault load reduction.

Description

technical field [0001] The invention belongs to the field of thermal power generation, and in particular relates to a control method, system and device for a gas boiler generator set. Background technique [0002] In order to comprehensively utilize the remaining gas from blast furnaces, converters, coke ovens and other iron-making equipment, reduce heat rejection to the atmosphere and reduce the greenhouse effect, some large steel mills currently use the gas generated by the iron-making workshops as the main fuel for gas boilers, and are equipped with Condensing steam turbine generator set. [0003] Auxiliary failure load reduction (ie RB condition) refers to the control measures to quickly reduce the load of the unit when the main auxiliary machinery (such as feed water pump, blower, and induced draft fan) fails and part of the work stops working so that the unit cannot carry the rated load. The gas of the gas generator set contains impurities and has a relatively high vi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23L17/02F23C5/08F22G5/12F23N5/24
CPCF23L17/02F23C5/08F22G5/123F23N5/24
Inventor 盛海波邹毅辉刘旭李芒芒易晓坚陈超刘丹
Owner 中国能源建设集团华中电力试验研究院有限公司
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