Matrix equation alternate iteration hot steam network simulation method

Abstract

The invention discloses a matrix equation alternate iteration hot steam network simulation method, which relates to the field of heat supply system simulation, and comprises the following steps: analyzing the motion state of stable flowing of hot steam in a single pipeline, and establishing a hydraulic equation of the hot steam flowing in the pipeline; a steam network topology equation is supplemented through a hydraulic equation that hot steam flows in a pipeline, and a hydraulic equation in a hot steam network matrix form is established; analyzing the thermal process of the hot steam stably flowing in the pipeline, and establishing a thermal equation in the form of a hot steam network matrix; alternative iteration solution is carried out on the hydraulic equation in the form of the hot steam network matrix and the thermal equation in the form of the hot steam network matrix, finally, a to-be-solved hot steam network simulation variable is solved, and acceleration of overall simulation solution is achieved by reducing the calculation complexity of single iteration in the solution process. And a solution thought is provided for linearization and high-speed solution of the hot steam network model.

Description

technical field [0001] The invention belongs to the technical field of simulation and modeling of heating systems, and in particular relates to a method for simulating a thermal steam network with alternate iterations of matrix equations. Background technique [0002] Thermal energy is a very important energy in both industrial production and residential heating. The existing heating system has two forms of heat transfer, one is a hot water heating system, and the other is a hot steam heating system. Compared with hot water, hot steam has a higher energy density, and at the same flow rate. It can transmit more heat energy at one time, but the disadvantage is that the heat energy transmission loss is large and the controllability is poor, so it is mainly used in industrial heating systems. For example, in the production process of textile, steel and chemical industries, steam is the most It is the main heating medium, but the high loss of hot steam in the transmission proces...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a hot steam network simulation method with alternate iterations of matrix equations, which solves the problem of high loss of hot steam during the transmission process in the prior art, making it difficult to simulate There is a high degree of coupling between variables in the modulus, resulting in technical problems such as high nonlinearity of the mathematical model, difficulty in solving, and long time to solve

Images