T/GERS 0041-2024 The technical guidelines for hydrodynamic calculation of power plant boilers during deep peaking are provided

Scope

Main technical content: This document specifies a series of technical requirements and operating norms for power calculation during the deep peak shaving process of power station boilers, covering aspects such as the collection of water-cooled wall system parameters, the division of water-cooled wall tube loops and tube sections, the calculation of water-cooled wall heat load distribution, and the solution of non-linear equations. According to the layout drawings of the boiler's water-cooled walls, the water-cooled walls are divided into different regions, and the tubes, headers, etc. within each region are numbered. Corresponding parameter information is collected, including dimensional parameters (such as tube diameter, length, internal thread, and tube roughness) and layout parameters (such as the connection method between the tube and the boiler drum, the connection method between the tube and the header, and the tube inclination). At the same time, the method of dividing water-cooled wall tube loops and tube sections is clarified. It divides adjacent water-cooled wall tubes with basically the same geometric structure and heat absorption deviation into one loop area, and calculates with the middle tube as the representative. Within the same loop area, the working medium parameters and heat load conditions of all tubes are considered the same. For areas with large changes in heat load in the horizontal and vertical directions of the furnace, the division of loops and tube sections should be appropriately densified to ensure the accuracy of the calculation. The document provides the calculation of water-cooled wall heat load distribution and the solution method of non-linear equations, providing comprehensive technical support for the hydrodynamic calculation of power station boilers during the deep peak shaving process.

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