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一、余热回收热水系统 为了利用工业耗能装置中各种低温余热,最简便的办法是利用除盐水作为介质,通过循环泵和热交换器收集到中央热水站。在选择有效的热水发电系统时要考虑这种热水回收系统的如下特点,即:(1)为保证生产工艺稳定进行,系统回水温度T_F要求一定;(2)系统热水初温T_0是各路热水汇总后的平均值,取决于余热热源;(3)系统提供余热总量Q为定值。热水系统总流量G_0=Q/(T_0—T_F)_(C_(pw)),其中C_(pw)是热水定压比热,因此这是一种定热量热水发电系统,热水流量与回水温差△T=T_0—T_F成反比,它不同于地热
First, the waste heat recovery hot water system In order to use various low-temperature industrial waste heat, the easiest way is to use desalinated water as a medium, through the circulating pump and heat exchanger to collect the central hot water station. In choosing an effective hot water power generation system, the following characteristics of the hot water recovery system should be considered: (1) To ensure a stable production process, the system return water temperature T_F requires a certain amount; (2) The initial temperature of the hot water system T_0 Is the average of all hot water after the summary, depending on the heat of waste heat; (3) the system provides the total amount of waste heat Q as a fixed value. The total flow of hot water system G_0 = Q / (T_0-T_F) _ (C_ (pw)), where C_ (pw) is the specific heat of hot water, so this is a constant heat hot water power generation system, hot water flow And backwater temperature difference △ T = T_0-T_F is inversely proportional to, it is different from the geothermal