基于价值工程的热机设备选型方法分析及实践

Method Analysis and Practice of Heat Engine Equipment Selection Based on Value Engineering

[目的]传统设计工程中,热机辅机设备设计选型存在两种倾向,一是以功能为先,忽视成本;二是以低成本为准,忽略部分功能的重要性。这两种选型方式都存在一定的缺陷,不能实现功能与成本的统筹,不能获取收益最大化。随着行业发展,设计工程热机设备选型越来越重视性价比,即以合理的成本实现最佳的功能。[方法]将价值工程理论应用于热机设备选型,通过价值系数公式,统一考虑功能与成本,实现热机设备选型方案的最优选择。[结果]结合实际案列,文章论证了价值工程理论应用于热机设备选型的可行性。[结论]为后续电厂在设计设备选型过程中实现设备的功能与成本统一论证提供了一种可行方法。

[Introduction]In traditional design engineering,there are two trends in the design and selection of auxiliary equipment of heat engine.One is to put function first and ignore cost;the other is to take low cost as the criterion and ignore the importance of some functions.Both of these two selection methods have certain defects,and the function and cost cannot be considered as a whole to maximize the benefits.With the development of the industry,an increasing emphasis is placed on the cost performance in the process of heat engine equipment selection in design engineering so as to achieve the best function at a reasonable cost.[Method]In this paper,the theory of value engineering was applied to the design and selection of heat engine equipment,and the function and cost were considered in a unified manner through the formula of value coefficient,so as to realize the optimal heat engine equipment selection scheme.[Result]Combined with practical cases,this paper has demonstrated the feasibility of applying the theory of value engineering to the selection of heat engine equipment.[Conclusion]The paper provides a feasible method for realizing the unified demonstration of equipment function and cost in the heat engine equipment selection process of the subsequent power plant design.