一机一泵组合的冷却水泵工作区与变频运行分析

作者:旷金国 王朝晖 罗曙光 陈盛阶 叶圳
单位:深圳市前海能源科技发展有限公司
摘要:根据深圳前海10号制冷站区域供冷系统,建立了一机一泵组合的冷却水系统水力计算模型,包括共享的总管+冷却塔压降模型,以及各支路的压降模型。针对不同运行模式,得到了水泵工作区;结合水泵变频特性曲线,得到了每个水泵工作区不同流量对应的水泵运行频率范围,可用于水泵变频控制,简化水泵运行控制策略。本文提出的水泵工作区还可用于水泵选型,校核水泵在所有工况是否运行在高效区。
关键词:区域供冷系统一机一泵组合水力计算模型水泵工作区水泵运行频率范围水泵选型
作者简介:旷金国,男,1984年生,硕士研究生,高级工程师;;*王朝晖,518054广东省深圳市前海合作区前海深港创新中心A组团E-mail:wangzh@qhholding.com;
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参考文献[1] TAYLOR S T.Optimizing design & control of chilled water plants:part 2:condenser water system design[J].ASHRAE journal,2011,53(9):26- 36.

[2] 谢得文.空调冷却水系统优化控制研究[D].武汉:华中科技大学,2019:25- 26.

[3] 文先太,梁彩华,张小松.空调冷却塔变流量的优化研究[J].流体机械,2009,37(11):79- 83.

[4] 杨欢,孔颖萍,董骆骆,等.某制冷站中央空调冷却水系统控制策略分析[J].建筑热能通风空调,2012,31(2):73- 74.

[5] 徐菱虹,王凌云.集中空调冷却水系统的节能运行[J].暖通空调,2000,30(3):82- 84.

[6] 曲凯阳,胡德祥,王连吉,等.空调冷却水系统最优节能控制策略[J].暖通空调,2010,40(4):110- 114.

[7] TAYLOR S T.Optimizing design & control of chilled water plants:part 5:optimized control sequences[J].ASHRAE journal,2012,54(6):56- 74.

[8] 罗曙光,王朝晖,旷金国.区域供冷系统冷水输配运行控制分析[J].暖通空调,2021,51(12):9- 15.

[9] 戴明明,王朝晖,旷金国.区域供冷系统外管网输配水泵运行工作区分析 [J].制冷与空调,2023,23(6):42- 48.

[10] 旷金国,王朝晖,罗曙光,等.区域供冷系统冷却水管路水力仿真分析优化[J].暖通空调,2023,53(12):121- 130,61.

[11] 旷金国,王朝晖,戴明明.区域供冷系统水回路管件局部阻力系数综述[J].暖通空调,2022,52(12):89- 96.

[12] 关醒凡.现代泵理论与设计[M].北京:中国宇航出版社,2011:65.
Analysis of cooling water pump working zone and variable frequency operation of one-pump-one-chiller combination
Kuang Jinguo Wang Zhaohui Luo Shuguang Chen Shengjie Ye Zhen
(Shenzhen Qianhai Energy Technology Development Co., Ltd.)
Abstract: Based on Qianhai DCS Plant No.10 in Shenzhen, a hydraulic calculation model is developed for the one-pump-one-chiller combination cooling water systems considering the shared pressure drops of the shared main pipe and cooling towers, and the individual pressure drops of the pump branches. According to different operation modes, the pump working zones are obtained. Combined with the frequency conversion characteristic curve of the pump, the pump frequency operation zone is obtained corresponding to different flows in each pump working zone, which can be used for the frequency conversion control of the pump, and the pump operation control strategy is simplified. The pump working zone proposed in this paper can also be used for pump selection to check whether the pump is running in the high efficiency zone under all the operation conditions.
Keywords: district cooling system; one-pump-one-chiller combination; hydraulic calculation model; pump working zone; pump frequency operation zone; pump selection;
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