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Steam supply pressure control method and system for thermal power plant heating network

A technology of a thermal power plant and a control method, which is applied in heating systems, heating methods, household heating, etc., can solve problems such as uncontrollable pressure, and achieve the effect of convenient adjustment

Active Publication Date: 2020-09-11
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a steam supply pressure control method and system for the heat network of a thermal power plant, which aims to solve the problem that the pressure cannot be controlled in the steam delivery process of the existing thermal power plant

Method used

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  • Steam supply pressure control method and system for thermal power plant heating network

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of 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 belong to the protection scope of the present invention.

[0023] Such as figure 1 As shown, the embodiment of the present invention provides a method for controlling the steam supply pressure of the heating network of a thermal power plant, which includes the following steps:

[0024] S1, obtain the steam flow and pressure at the inlet of the steam pipeline;

[0025] S2, obtaining the steam flow and pressure at the steam transfer station;

[0026] S3, obtaining the steam flow rate and pressure at the outlet of the ...

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Abstract

The invention provides a heat network steam supply pressure control method and system for a thermal power plant. The heat network steam supply pressure control method comprises the following steps that S1, steam flow and pressure intensity at an inlet of a steam conveying pipeline are obtained; S2, steam flow and pressure intensity at a steam conveying transfer station are obtained; S3, steam flowand pressure intensity at an user outlet are obtained; S4, a steam flow mathematical model and a pressure intensity mathematical model are established; S5, according to a set steam flow value at theuser outlet and an obtained steam flow value at an inlet of the steam conveying pipeline, the steam flow mathematical model in the S4 is combined, the steam flow rate of the steam conveying transfer station is adjusted inversely, meanwhile, according to a pressure intensity value at the user outlet and a pressure intensity value at the inlet of the steam conveying pipeline, the pressure intensitymathematical model in the S4 is combined, and the pressure intensity of the steam conveying transfer station is adjusted inversely. The heat network steam supply pressure control method and system forthe thermal power plant can scientifically adjust the pressure intensity and flow information of the pipeline in order to obtain normal steam heat supply at the end user pipeline.

Description

technical field [0001] The invention relates to the technical field of cogeneration of heat and power, in particular to a method and system for controlling steam supply pressure of a heating network of a thermal power plant. Background technique [0002] In thermal power plants, waste heat is generated during the power generation process, and this waste heat is used for heating. The power plant not only produces electric energy, but also uses the steam produced by the steam turbine generator to supply heat to the user, that is, the process of producing electricity and heat energy at the same time, which saves fuel compared with the method of producing electricity and heat energy separately. Thermal power plant heat supply, combined production of heat and electricity for urban centralized heating. [0003] In the thermal power plant, the steam generated during the power generation process is transported to the user in a concentrated manner, so as to provide heat; in the proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24D19/10
CPCF24D19/1003F24D2220/0207F24D2220/0271F24D2220/044F24D2220/046
Inventor 雷平朱政许岩李瑞婉
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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