碳中和背景下热电联产机组抽汽分配节能优化
摘要：为了研究热电联产机组在全工况不同供热负荷分配下电厂煤耗量的变化规律，实现电厂深度节能与减少碳排放量的目标，以某2台630 MW热电联产机组作为研究对象，利用EBSILON软件建模，并基于弗留格尔公式和热量法原理，进行单、双台机组不同热负荷分配方案的研究分析。研究发现：单台机组的热电负荷变化对煤耗的影响存在一个临界供热抽汽流量点，当供热流量小于该临界点时，电负荷越大，机组发电热效率越高；当供热流量大于该临界点时，电负荷越小，机组发电热效率越高。对于2台运行机组，当供热负荷集中分配给某一台机组时，在不同工况下的全厂煤耗量最小，节能效果更好。寻找最佳供热分配方式，有利于降低电厂的煤耗，对电厂节能减排以及响应国家的“碳中和”政策具有重要意义。
Abstract:In order to study the change rule of coal consumption of cogeneration units under different heating load distributions in the whole working condition, and realize the goal of deep energy saving and carbon emission reduction in power plants, two 630 MW cogeneration units were taken as the research objects. The EBSILON software was used for modeling, and the different heating load distribution schemes of single and double units were studied and analyzed based on the Freuger formula and the principle of caloric method. It is found that there is a critical heating extraction steam flow point in the influence of thermoelectric load change on coal consumption of a single unit. When the heating flow is less than the critical point, the greater the electric load, the higher the thermal efficiency of the units. When the heating flow is greater than the critical point, the smaller the electrical load, the higher the thermal efficiency of the units. For two operating units, when the heating load is distributed centrally to one unit, the coal consumption of the whole plant under different working conditions is the least, and the energy saving effect is better. It is of great significance to find the best way of heat supply distribution to reduce the coal consumption of power plants, save energy and reduce emission and respond to the national “carbon neutral” policy.
标题：碳中和背景下热电联产机组抽汽分配节能优化
title:Energy Saving Optimization of Extraction Steam Distribution for Cogeneration Units Under Carbon Neutral Background
作者：黄宇箴, 陈彦奇, 吴志聪, 徐钢, 刘彤
authors:Yuzhen HUANG, Yanqi CHEN, Zhicong WU, Gang XU, Tong LIU
关键词：碳中和,热电联产机组,抽汽优化,热力建模,节能减排,热力学分析,
keywords:carbon neutral,cogeneration units,extraction steam optimization,thermodynamic modeling,energy conservation and emission reduction,thermodynamic analysis,
发表日期：2023-02-28
- 文件大小:
- 2.54 MB
- 下载次数:
- 60
-
高速下载
|
|
