A test device for the characteristics of the water supply system of an external power station
A technology for water supply system and characteristic test, which is applied to pump devices, non-variable-capacity pumps, electrical digital data processing, etc. small effect
Active Publication Date: 2022-06-28
JINGNENG SHIYAN THERMAL POWER CO LTD
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Problems solved by technology
[0004] For power plants with different unit capacity, different arrangement of unit measuring points, different design sizes of electric pumps, and average operating load rate, etc., directly refer to or copy the water supply system to start the electric pump after the failure of the water supply system, so as to realize the rapid load reduction of the unit When using the logic of non-shutdown, there will be many uncertain factors, and even the risk of accident expansion due to parameter mismatch
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[0035] 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.
[0036] In the description of the present invention, it should be noted that for orientation words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", " Width, Thickness, Top, Bottom, Front, Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inside ", "outside", "clockwise", "counterclockwise" and other indications of orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are 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 specific orientation, be constr...
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The invention discloses a characteristic test device of an external power station water supply system, which relates to the technical field of supercritical thermal power generating sets, and includes a DCS, an external machine and a host computer. The external machine includes a signal input module, a controller module, a signal output module and a network. module; the signal input module is used to collect data signals in the DCS; the controller module includes a simulation mode and an actual test mode that can be switched between each other; the controller module has a preset model inside, and can determine the optimal test data according to the simulation calculation results , to generate instruction signals; the signal output module is used to output instruction signals to DCS; the network module is used to realize the interaction between the controller module and the upper computer; the upper computer is used to call the internal preset model of the controller module for the collected data signals Carry out the simulation calculation of the characteristic test of the water supply system.
Description
technical field [0001] The invention relates to the technical field of supercritical thermal power generating units, in particular to a characteristic test device for a water supply system of an externally mounted power station. Background technique [0002] The water supply system of a conventional 350MW thermal power unit is usually equipped with an electric feed pump with 50% capacity and a steam-driven feed pump with 100% capacity. The electric feed pump (hereinafter referred to as "electric pump") is generally used as a start-up feed pump or a backup feed pump for the unit, and the steam-driven feed pump (hereinafter referred to as "steam pump") is used as the main pump for the unit to run normally with load until full load. In a complete process, the electric pump or steam pump is connected to the feed water from the bottom of the water tank of the deaerator, passes through the electric pump pre-pump, electric pump (or steam-driven pre-pump, steam pump), and then passe...
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IPC IPC(8): F04D15/00F04D13/06G06F30/28G06F113/08G06F119/14
CPCF04D15/0088F04D15/0077F04D15/0005F04D15/00F04D13/06G06F30/28G06F2113/08G06F2119/14
Inventor 解世涛谭祥帅胥成增刘明海张宏元陈景勇段新潮刘文仓李春李雪冰刘琼伟李佳孙海颖王瑾
Owner JINGNENG SHIYAN THERMAL POWER CO LTD