重庆地区某工业厂房闭式地表水源热泵空调系统LCC值分析及优化
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中国科技论文在线
重庆地区某工业厂房闭式地表水源热泵空
调系统 LCC 值分析及优化
#
陈金华
1,2
，江蓉
1*
基金项目：村镇特色旅游产业能源高效利用关键技术研究（2013BAJ11B05-5）；国家自然科学基金重点资
助项目（50838009）
作者简介：陈金华，（1973-），男，重庆大学副教授，主要研究方向：冷热源理论、热泵技术及建筑节能。
E-mail: c66578899@126.com
（1. 重庆大学城市建设与环境工程学院，重庆 400045； 5
2. 三峡库区生态环境教育部重点实验室，重庆 400045）
摘要：利用全寿命周期成本计算方法，计算分析某工业厂房地表水源热泵系统与常规冷热源
系统 LCC 值。分析能耗的组成及特征，得出地表水源热泵系统热泵机组、取水泵、循环泵
及冷冻水泵能耗分别占运行成本的 78.5%、4.4%、5.4%、11.7%，其中热泵机组及冷冻水泵
能耗比重较大。通过探讨优化系统的措施，得出在冷冻水供回水温差、源水侧水源供回水温10
差一定的情况下，部分负荷率小于 28%，2 台机组均匀分担负荷；大于 28%，4 台机组均匀
分担负荷,此时系统 LCC 值最小，为 2948.3。同时，当冷冻水泵采用变频控制时，系统的 LCC
值更小，为 2888.4，冷冻水泵变频控制具有节能效益。
关键词：工业厂房；地表水源热泵；LCC；优化控制；节能
中图分类号：TU831 15
Analysis and optimization on LCC values of a closed surface
water source heat pump system in an industrial plant of
Chongqing
CHEN Jinhua
1,2
, JIANG Rong
1
20
(1. Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment of Ministory of
Education, ChongQing 400045;
2. school of Urban Construction & Environmental Engineering of Chongqing Univ,
ChongQing 400045)
Abstract: With the application of life-cycle costing methods, the calculation and analysis on the 25
LCC values of surface water source heat pump system and conventional heating and cooling
systems in an industrial plant is done in this paper. After the analysis on the composition and
characteristics of energy consumption, draw heat pump units, the conclusion shows that the heat
pump unit, taking pumps, circulating pumps and chilled water pump costs energy for 78.5%, 4.4%,
5.4%, 11.7% of the whole surface water source heat pump systems separately, and the heat pumps 30
unit and chilled water pumps take a larger proportion of energy consumption. By exploring
measures on optimization of the system, the result shows that on the condition of the steady
temperature of supply and return water for chilled water and the water source, when part-load rate
is less than 28%, two units share the load evenly; and when it is greater than 28%, 4 units share
the load evenly, then the system LCC reaches its minimum value at 2948.3.Meanwhile, the system 35
LCC reaches even smaller value at 2888.4 when the chilled water pump is under frequency
conversion control, achieving effect on energy conversation.
Keywords:
Industrial plants; Surface water heat pump; LCC; Optimal control; Energy
conservation
40
0 引言
地表水源热泵系统利用地球表面的水体（江、河、湖、海）作为热源和热汇，采用热泵
原理，通过少量的高位电能输入，将地表水中的低位热能转换为高位热能
[1-3]
。根据传热介
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