Being short of energy resource in our country, energy saving has become a pressing issue our country face. Being short of correlative technique of management and adjustment, therefore serious hydraulic disordered phenomenon exists generally. This demerit can increase the cost of pipe work. Therefore, it is necessary to study the fluid supply pipe work hydraulic condition.
In this paper, according to the analysis of fluid supply pipe work hydraulic condition, using the graph theory basic loop, KCL and KVL and Bernoulli equation established hydraulic power work condition mathematic model, settled the derivation of the mathematic model.
Based the Visual Basic software as development platform, integrated Access database, that developed a fluid supply pipe work hydraulic calculation software for both branch network and loop network. Hydraulic calculation by manual operation is complicated and often results in miscalculation. Current softwares for hydraulic calculation have many disadvantages such as large amount of data input, single function, and inflexible parameters setting. Based on Visual Basic program and Access platform, a new software for hydraulic calculation is developed, which is comprehensive and easy to operate. This software uses Visual Basic programming language which establishes procedures, it made the computer can self-action recognize the network's spanning tree, associated matrix, loop matrix, drag coefficient vector ,and flowrate vector and so on, then solute the problem according to flow calculation simulation model that has been established. The software can calculate hydraulic condition of a network according to the different network.
We calculate the flowrate and pressure loss of loop network according to a given example, and compared the result to the reality, the error is in a proper sphere. Therefore, this model is proved to be correct.
