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一 前言 在城市热电厂热水供热系统中,为了提高热电厂的经济性,扩大供热面积和热负荷,选择合理的热化系数α值(α<1)是一个重要的技术经济问题。实现合理的热化系数的技术途径,主要方法有:(1)热电厂内设置高峰加热器或尖峰锅炉;(2)热电厂与区域锅炉房联合供热。国内近年来已出现了热电厂与区域锅炉房联合供热的设计方案和运行方式(如牡丹江等市的供热方案和沈阳市发电厂利用循环水供热在较低外温下与末端锅炉房联合供热等),这是一个值得重视和探研的课题。本文着重分析热电厂与区域锅炉房联合供热的工况和应注意的一些原则性问题。
I. INTRODUCTION In the hot water heating system of urban thermal power plants, in order to increase the economic efficiency of thermal power plants and expand the heating area and heat load, it is an important technical and economic issue to choose a reasonable value of the heating coefficient α (α<1). The main methods for achieving a reasonable heating factor are: (1) A peak heater or a peak boiler is set in a thermal power plant; (2) The thermal power plant and the regional boiler house are jointly heated. In recent years, there have been design schemes and operation methods for combined heat supply of thermal power plants and regional boiler houses (such as the heating scheme of Mudanjiang City, etc., and the Shenyang Power Plant using recycled water heat to combine with the end boiler house at lower external temperatures. Heating, etc.) This is a topic worthy of consideration and exploration. This article focuses on the analysis of the working conditions of the joint heating of the thermal power plant and the area boiler room and some principle issues that should be noted.