Application Research Of Q-H Equilibrium Diagram

Q-H equilibrium graph is a new method to express all the characteristics of ventilation network. It can express the network quantitative relation and interaction of various parameter clearly in graph, Q-H equilibrium graph have more advantages than ventilation system graph, network graph, more intuitive, image and facilitate comparative analysis the problem, therefore, it is the great significance of equilibrium graph, In this paper, the application of AutoCAD embedded Visual LISP language to equilibrium graph visualization software development, and by changing the strategy of seeking branch,based on depth-first search algorithm to improve Q-H equilibrium graph optimization problem. In order to make equilibrium diagram intuitive, it is studied three-dimensional Q-H equilibrium diagram, and it is drawn to reflect the temperature, gas, CO, CO₂, such as a series of three-dimensional equilibrium diagram. Different forms of software are developed, namely black-white three-dimensional lines block diagrams, vertical view of three-dimensional Q-H equilibrium graph, colored three-dimensional lines graph and vertical view of colored three-dimensional Q-H equilibrium graph. HongLing mine is selected as practical applications, Q-H equilibrium diagram to draw out, analysis and draw conclusions.