To solve the problems in the design and operation of constant flow chilled water system , the thesis suggested that the chilled water system could be converted from constant flow to variable flow . in this thesis , the possibility of the conversion , the characteristics of vwv system and the optimized method in the designing of chilled water system were deeply studied 針對定水量系統(tǒng)設(shè)計(jì)及運(yùn)行中常出現(xiàn)的問題,本文提出了將定水量系統(tǒng)改造為變水量系統(tǒng)的課題,研究了定水量系統(tǒng)改造為變水量系統(tǒng)的可行性,分析了變水量系統(tǒng)的特性,同時對空調(diào)冷水系統(tǒng)的優(yōu)化設(shè)計(jì)方法進(jìn)行了深入研究。
Takes several energy saving measures for air conditioning system , nick a large capacity centrifugal chillers working with variable frequency nil capacity chillers , variable frequency and variable flow control on secondary pump water systems , cooling tower for four - pipe water system in winter , fan - coil unit for commercial peripheral zones aid all - air systems for interior zones , variable frequency control on supply and exhaust air fain , enthalpy control on fresh air cooling in winter and intermediate season 采用了多項(xiàng)空調(diào)節(jié)能措施:大冷量離心冷水機(jī)組搭配變頻小冷量機(jī)組,二次泵變頻變流量空調(diào)水系統(tǒng),四管制風(fēng)機(jī)盤管冬季用冷卻塔換冷供冷設(shè)計(jì),商業(yè)外區(qū)風(fēng)機(jī)盤管、內(nèi)區(qū)全空氣空調(diào)系統(tǒng),送風(fēng)機(jī)、排風(fēng)機(jī)變頻控制,過渡季、冬季利用室外新風(fēng)通風(fēng)降溫的焓值控制設(shè)計(jì)。
As the requirement of energy - saving and indoor environment gets higher and higher , variable flow technology are widely used in heating and air conditioning systems , namely by changing power or resistance to adjust the flow of the system 、 subcircuit and terminal equipment so as to match usually mutative dynamic heat ( cold ) load variation 隨著節(jié)能和室內(nèi)環(huán)境要求的愈來愈高,供暖和空調(diào)系統(tǒng)廣泛采用了變流量技術(shù),即用改變動力或改變阻力的方式調(diào)節(jié)系統(tǒng)、支路以及末端設(shè)備的流量,使之與經(jīng)常變化的動態(tài)熱(冷)負(fù)荷相匹配。