Calculation method of thermal power plant heating load

Abstract

The invention provides a calculation method of a thermal power plant heating load, and belongs to the fields of thermal power plant heating design and computer technology. According to the method provided by the invention, different engineering instances are classified into different cases such as engineering instances with same figures at different regions and engineering instances of different figures but at same regions; each case is analyzed separately to obtain a different calculation model; calculation complexity and accuracy of the models are considered during acquisition of the calculation models; a linear relationship between a product of a temperature difference between indoor and outdoor and an area, a volume or length and the heating load is acquired by using a method of numerical fitting, so as to acquire a plurality of calculation models; and thus when calculating a particular thermal power plant, a corresponding calculation model can be selected for calculation. According to the scheme provided by the invention, problems in the prior art that the calculation is complex, inaccurate, not dedicated to the thermal power plant and the like are solved; the calculation method provided by the invention has advantages of being simple and quick, being accurate in result, and the like.

Description

technical field [0001] The invention relates to the heating design of a thermal power plant and the technical field of computers, in particular to a calculation method for the heating load of a thermal power plant. Background technique [0002] The main workshop of the thermal power plant has a large space, and the core equipment of the power plant and the steam and water pipelines are all arranged in it. In cold regions, especially in severe cold regions, it is extremely important to ensure the heating temperature in the main workshop. Therefore, the heating design of the main workshop and the selection of equipment are important tasks in the heating design of the power plant. The heating features of the main workshop are as follows: [0003] (1) The insulation performance and heat storage performance of the enclosure structure of the main factory building are poor, so the heating load is large. [0004] (2) The plane temperature field of the main factory building is une...

AI Technical Summary

Problems solved by technology

[0003] (1) The insulation performance and heat storage performance of the enclosure structure of the main factory building are poor, so the heating load is large

[0004] (2) The plane temperature field of the main factory building is uneven, the temperature near the outer wall is low, and the temperature in the center of the factory building is high

[0006] (4) When the door is opened, the amount of cold air pouring in is large, and the intrusion of cold air during startup and overhaul consumes a lot of heat

[0007] (5) The heating interface of the main factory building is complex, and the design process is closely coordinated with the maintenance, electrical, building structure and other majors

[0018] Furthermore, there are some heating load calculation methods for other types of factory buildings, which use the fitting method, but these methods do not consider the characteristics of thermal power plants, and give the heating load suitable for different regions and different sizes of thermal power plants. The specific calculation method of the load cannot be simply applied to the heating load calculation of thermal power plants

[0019] It can be seen that the current heating load calculation methods are either very complicated, inaccurate, or not suitable for thermal power plants, and there is an urgent need for a simple, accurate and suitable heating load calculation method for thermal power plants

Images