以广西某工程为例,应用模拟和理论计算,对区域供冷设计时常见的负荷计算、节能控制策略及二次管网冷量损失3个方面进行了分析。结果表明,该案例满负荷折算率为0.37;在优化运行策略下,机组的负载率提高,从而系统的能效明显提高;管沟埋管冷量损失大于直埋管,在相同的埋管方式下,水泵做功的冷量损失比例最高,其次为供水管,回水管最小。 Taking a project in Guangxi as an example, the simulation and theoretical calculation are applied to analyze the common load calculation, energy saving control strategy and the cooling loss of the secondary pipe network in district cooling design. The results show that the full-load conversion rate of the case is 0.37. Under the optimized operation strategy, the unit loading rate increases, and the energy efficiency of the system is obviously improved. The cooling capacity loss of the pipe buried pipe is greater than that of the buried pipe. Under the same pipe embedding method , The proportion of cold loss of pump work is highest, followed by water supply pipe and return pipe.