Large Comprehensive Hospital Of Waste Heat Utilization And Research Of The System

In this paper, as a preliminary exploration of large-scale comprehensive hospital waste heat utilization, first of all to domestic energy, waste heat utilization for energy saving in public buildings and modification on do a simple understanding, a large number of literatures, found the existing problems, and related the methods to solve the problem.While the domestic researchers the different methods for public construction waste heat utilization has launched a lot of work, but no matter from the perspective of development of industry and technology progress, for large public building comprehensive utilization of the waste heat is not high, China's large comprehensive hospital of waste heat utilization system still needs further research. Compared with the international advanced level, there are certain backward, especially in a variety of research theory today, very skillful, introduces the technology of mathematical calculation to large comprehensive methods of waste heat utilization system in hospital is not popular.Few large comprehensive public buildings form the bootstrap system, therefore, also need to all engaged in the research of hospital waste heat utilization system scholars constantly efforts and exploration.The significance of this article, is to use a more reasonable set up large-scale comprehensive hospital waste heat utilization and its system, and then optimize the large comprehensive hospital of waste heat utilization system analysis, the optimized heat energy utilization of waste heat utilization system is better, and then to the actual hospital waste heat utilization system design provides a new train of thought, and has a certain theoretical guiding significance, waste heat utilization is more reasonable.This article is mainly on 6 items, such as waste heat boiler using points to make key analysis.First uses the grey prediction model to simulate the large comprehensive hospital survey and research, and to predict the annual production of waste heat.Through the prediction of residual heat and waste heat recovery, the K-mean clustering method to hospital waste heat partition, although there are some waste heat can be produced but not better practical application of waste heat, choice of heat category or categories for further research and establishment of the waste heat system.Based on analytic hierarchy process (ahp) and entropy bootstrap point for the weight of each heat recycling point distribution model, is a kind of new method for waste heat distribution, clearly calculated the weight of each heat recycling point, with the result of analytic hierarchy process (ahp) based on the information entropy can be seen that for the main influence factors for the economic and social factors, sanitary water and boiler has great waste heat utilization value and weight value of the largest.And get the following conclusion:under several conditions influencing weigh, sanitary water is one of the most of the waste heat utilization value, its classification weight of 0.887976857, followed by the use value of boiler.In addition, you can get if you add the weight of all waste heat utilization of points at the same time to take advantage of allocation proportion, if use waste heat all on health or waste heat boiler water, the water will lead to the greatest economic benefits. Model of minimum spanning tree based on Kruskal algorithm USES waste heat in large comprehensive hospitals based on the selection of the path, a simple solution for waste heat utilization path selection process, on the other path selection can promote, and for the next step of automatic control and formation of waste heat utilization system laid a foundation.Establish a large comprehensive hospital of waste heat utilization system, in this system, there are four waste heat utilization path, used respectively in the water and softening water boiler. Life initial temperature is 20 ?, and water through heat recovery unit 2-3 to 30 ?, after thermal collector 3-3 into 37 ?, after volume heat exchanger heat into 65 ?. Initial temperature is 20 ?, demineralized water through heat recovery unit 2-2 to 30 ?, after thermal collector 3-2 to 37 ? and ironing machine and dryer condensate mixture into the condensed water in addition to the oxygen by boiler steam heated to 108 ? after thermal deoxidization, into the boiler.To establish a large comprehensive hospital waste heat utilization of waste heat utilization system analysis, get the maximum of waste heat:Q=Q1+Q2+Q3=1265kw,recovery for work, the total loss of waste heat utilization for:e= e1 ×2+e2×3+e3×3=463.62kw.Get the hospital of waste heat utilization system:?zong=63.34%.On the basis of above analysis, according to actual condition, simulation analysis was carried out on the large comprehensive hospital of waste heat utilization system of the process, and then based on the calculation model of system optimization, from the point of view of system optimization of thermal economics, on the comparative analysis of waste heat utilization of waste heat utilization system.Constraints of waste heat utilization system is proposed. Using waste heat utilization analysis for the bootstrap system whole optimization of large-scale comprehensive hospital waste heat utilization system analysis to establish optimization model of large-scale comprehensive hospital waste heat utilization system, it is concluded that the optimal solution, when the temperature t1=22? t2=33? t3=42? t4=180? get the maximum heat recovery, the waste heat recovery rate was 77.7%.