火电工业用水定额提标的节水效果评价

doi:10.13776/j.cnki.resourcesindustries.20201223.001

资源与产业 ›› 2021, Vol. 23 ›› Issue (2): 73-81.DOI: 10.13776/j.cnki.resourcesindustries.20201223.001

火电工业用水定额提标的节水效果评价

李佳雯¹，张超^1，2

（1.同济大学经济与管理学院，上海 200092；
2.同济大学联合国环境署-同济大学环境与可持续发展学院，上海 200092）

收稿日期:2020-08-09 修回日期:2020-12-05 出版日期:2021-04-20 发布日期:2021-04-20
通讯作者: 张超，博士、教授，主要从事资源环境管理、产业生态学与生态经济学研究。E-mail：chao_zhang@tongji.edu.cn
作者简介:李佳雯，硕士生，主要从事资源环境管理研究。E-mail：2296839039@qq.com
基金资助:
国家自然科学基金项目（71503182）；能源基金会赠款项目（G-1906-29810）

WATER-SAVING EFFECT EVALUATION OF WATER USE QUOTA REMINDER OF COAL POWER GENERATION INDUSTRY

LI Jiawen¹, ZHANG Chao^{1, 2}

(1. School of Economics and Management,Tongji University, Shanghai 200092, China;
2.UN Environment-Tongji Institute of Environment for Sustainable Development， Tongji University,

Shanghai 200092, China)

Received:2020-08-09 Revised:2020-12-05 Online:2021-04-20 Published:2021-04-20

摘要/Abstract

摘要：

火力发电是我国第二大用水部门，火电工业的快速扩张加剧水资源压力。加强用水定额管理、实施用水定额提标是促进火电工业节水的重要政策措施。基于全国火电机组能效水平对标数据，采用多元回归模型，评价燃煤火电机组单位发电用水强度及其影响因素，估算落实最新版火电工业用水定额（水节约〔2019〕373号文）的预期节水量。结果表明：新版用水定额中的通用值对推动现有燃煤电厂节水改造作用较弱，假定所有机组均满足通用值标准，2020年可实现节水总量1.22亿m3，假定水资源稀缺的三北区域达到用水定额领跑值、其他区域达到先进值，节水总量提升至8.23亿m3；从各类技术的贡献来看，差异化情景下循环冷却、直流冷却和空气冷却机组的节水量分别占58.6%、18.7%和22.8%；从区域分布来看，华东和华北区域节水量均超过2亿m3，占全国总量的1/4左右，西北区域节水量为1.08亿m3，东北区域节水总量最小，为0.53亿m3。

关键词: 火电工业, 用水定额, 电力-水资源关联, 多元回归模型

Abstract:

Coal power generation is the second largest water use industry in China; its fast expansion puts pressures on water resources; water use quota management is supposed to be a vital means in saving water for coalpower generation industry. This paper, based on benchmark energy efficiency level of nationwide coal power plants, uses multiple regression model to evaluate water use intensity and factors of unit power generation in coal power plants, and estimates the expected water saving quantity in accordance with the latest edition of Coal Power Water Use Quota. The suggested general water use quota has little push on motive of saving water upgrading for coal power plants. Total saving water may be 122 millions cubic meters in 2020 given all plants comply with the suggested quota, but could be up to 823 millions cubic meters if three northern China regions satisfy the quota where water resources are rare, while other regions reach a premium quota. Viewing from technical perspective, water saving quantity proportions of circular cooling, direct cooling and air cooling are 58.6%, 18.7% and 22.8% under differentiated scenarios. Water saving quantity in eastern and northern China is over 200 millions cubic meters, around one forth nationwide, 108 million cubic meters in northwestern China, and 53 million cubic meters in northeastern China, the least.

Key words: coal power generation industry, water use quota, electricity-water nexus, multiple regression model

李佳雯, 张超. 火电工业用水定额提标的节水效果评价[J]. 资源与产业, 2021, 23(2): 73-81.

LI Jiawen, ZHANG Chao. WATER-SAVING EFFECT EVALUATION OF WATER USE QUOTA REMINDER OF COAL POWER GENERATION INDUSTRY[J]. Resources & Industries, 2021, 23(2): 73-81.

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火电工业用水定额提标的节水效果评价

WATER-SAVING EFFECT EVALUATION OF WATER USE QUOTA REMINDER OF COAL POWER GENERATION INDUSTRY

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