福建工程学院学报
福建工程學院學報
복건공정학원학보
JOURNAL OF FUJIAN UNIVERSITY OF TECHNOLOGY
2014年
6期
541-545,550
,共6页
制冷机房%三次泵%变流量%控制策略
製冷機房%三次泵%變流量%控製策略
제랭궤방%삼차빙%변류량%공제책략
chilled water plant%primary-secondary-tertiary pump%variable flow%control strategy
根据当前三次泵的运行特点,分析了潜在的三次泵变流量运行方案;并以某建筑为例,比较了供冷季节三次泵系统与传统二次泵系统的水泵总能耗,得出三次泵变流量可节能30.61%;最后对三次泵变流量的控制运行方案进行了分析。结果表明,三次泵变流量系统的运行策略比常规一次或二次泵变流量系统复杂,负荷的变化方向将影响水泵运行调节次序。当末端负荷增加时,应先增加一次泵或二次泵流量,最后增加三次泵流量;而末端负荷减少时,应先降低三次泵流量,然后减少二次泵和一次泵流量。
根據噹前三次泵的運行特點,分析瞭潛在的三次泵變流量運行方案;併以某建築為例,比較瞭供冷季節三次泵繫統與傳統二次泵繫統的水泵總能耗,得齣三次泵變流量可節能30.61%;最後對三次泵變流量的控製運行方案進行瞭分析。結果錶明,三次泵變流量繫統的運行策略比常規一次或二次泵變流量繫統複雜,負荷的變化方嚮將影響水泵運行調節次序。噹末耑負荷增加時,應先增加一次泵或二次泵流量,最後增加三次泵流量;而末耑負荷減少時,應先降低三次泵流量,然後減少二次泵和一次泵流量。
근거당전삼차빙적운행특점,분석료잠재적삼차빙변류량운행방안;병이모건축위례,비교료공랭계절삼차빙계통여전통이차빙계통적수빙총능모,득출삼차빙변류량가절능30.61%;최후대삼차빙변류량적공제운행방안진행료분석。결과표명,삼차빙변류량계통적운행책략비상규일차혹이차빙변류량계통복잡,부하적변화방향장영향수빙운행조절차서。당말단부하증가시,응선증가일차빙혹이차빙류량,최후증가삼차빙류량;이말단부하감소시,응선강저삼차빙류량,연후감소이차빙화일차빙류량。
The potential running programs of primary-secondary-tertiary variable flow pumps were analysed in accordance with the characteristics of the current three-level variable flow pumps.The total energy consumption of the chilled variable flow pumps in cooling season was compared with that of the conventional secondary pump system.Illustrated by a case of example,a 30.61% of energy saving was obtained with the three-level variable flow pumps.The control schemes of the three-level variable flowing pumps were discussed.The results indicate that the control schemes of the threel-level variable flowing pumps are more complex than that of the primary or secondary variable flowing pumps,that the changing of loads affect the adjustment of the flowing pumps.When the end loads increase,the flow of the first level or the second level flowing pumps should be increased followed by the tertiary flowing pumps;When the end loads decrease,the flow of the tertiary pumps should first be lowered followed by the secondary and the primary pumps.