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引言 区域供热系统的经济运行和管理是保证供热系统正常工作,延长系统寿命的重要方面。赫宁(Hernnig)市区域供热系统的设计在丹麦许多的区城供热系统中是比较典型的。所以,这篇文章以该市供热管网系统为基础进行讨论。 赫宁市1950年开始供热。当时只有一个烧褐煤的供热厂,—台锅炉额定出力为7MJ/S,输送管网长2Km,供应140个用户。1950年以后,赫宁市区域供热逐渐得到发展。今天,该市已拥有9座区域供热锅炉房,额定出力为320MJ/S;11座热交换站,输送系统主干线长37km。这些热交换站和输送管网与热电厂连接。热电厂采用背压式汽轮机。在供热范围内,除有1％的建筑没用区域供热外,
Introduction The economic operation and management of the district heating system is an important aspect of ensuring the normal operation of the heating system and prolonging the life of the system. The design of the district heating system in Hernnig is typical of many district heating systems in Denmark. Therefore, this article is based on the city heating pipe network system for discussion. The city of Herning began heating in 1950. At that time, there was only one heating plant for lignite burning. The rated output of the boiler was 7 MJ/S. The length of the transmission pipe network was 2 Km and 140 users were supplied. After 1950, the district heating in Herning gradually developed. Today, the city has 9 district heating boiler houses, with a rated output of 320 MJ/S; 11 heat exchange stations, and the main trunk line of the transportation system is 37 km long. These heat exchange stations and transmission pipe networks are connected to thermal power plants. Thermal power plants use back-pressure turbines. In the scope of heat supply, except for 1% of the district’s unused district heating,