Application Research Of Waste Heat Recovery Of Civil Gas Boiler

In the context of energy conservation and emissions reduction, waste heat recovery technology of civil gas boiler is one of the important ways. Technical development has been relatively mature since the boiler waste heat recovery technology development. But the technology research around the boiler waste heat recovery mainly focuses on the study of heat exchanger technology, and for the application of waste heat recovery system technology is still blank. In the process of waste heat recovery technology application, often can use residual heat is difficult to determine, waste heat recovery system design problems such as lack of scientific guidance. This paper addresses the practical application of waste heat recovery boiler technology research, focus on analysis and calculation system can use residual heat, science are put forward based on available residual heat of waste heat recovery system design.Paper analyzed from theory Angle, using more involved in the basic theory of heat: combustion, heat transfer and flow theory. Involved in the calculation of heat can be used more than the basic flue gas parameters are calculated, the smoke gas, flue gas, flue gas, flue gas heat capacity, viscosity, density, etc. Key analysis related to flue gas flow resistance and draught, and determine its value. In the use of residual heat checking calculation, in view of the different working condition of boiler operation, put forward the appropriate check condition, available to help determine the residual heat. And put forward the boiler in different seasons and different load condition, it can use residual heat is different, the dynamic change. Based on available more than heat calculation ideas of seven modules, the calculation program of the available more than heat.Can use residual heat to benchmark, according to the advantages and disadvantages of all kinds of waste heat recovery and heat recovery use suitability, the waste heat recovery system design scientific and feasible design Suggestions are put forward. In view of the dynamic phenomena can use residual heat, creatively and puts forward the dynamic design of waste heat recovery system. In the running of the waste heat recovery system, put forward combining with the water pump frequency conversion, to meet the requirement of dynamic change can use residual heat. Classification of steam boiler, hot water boiler, starting from the use of waste heat recovery, for different conditions, puts forward the reasonable design of waste heat recovery system.Project as the object, the analysis of the project in detail. With the fall during the heating period under 100% as the benchmark, boiler load on the use of residual heat calculation are analyzed in detail. Against its use residual heat again, can use residual heat of different waste heat recovery temperature were compared, analyzed allowed temperature compared to other cases of recovery of waste heat, the flow of gas and cost saving is proved available the importance of determining the residual heat. In view of the project, proposed the feasible dynamic waste heat recovery system, comparing with the static waste heat recovery system, proved that the dynamic efficiency of waste heat recovery system.Sum up the above, this article from the point of view of theoretical analysis of the available heat calculation, design a convenient and simple to use software to calculate residual heat, puts up can use residual heat is really practical waste heat recovery system design, innovative use of the dynamic variation of the residual heat condition in dynamic waste heat recovery system was put forward, combined with the actual case analysis can use residual heat and waste heat recovery system of the importance of dynamic...