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College BU Western Europe China September 2022 37 實際案例Pfizer pharmaceutical production unit nearby Tours (France) 圖爾斯(法國)附近的輝瑞制藥工廠 Installed cooling capacity of MW (3 chillers in cascade) 總冷量 ( 3臺冷凍機并聯(lián)) Total design flow: 773 m179。/h 總設計流量: 773 m179。/h Problem: production alarms! 問題:生產線問題 80 TA balancing valves from STAD 15/14 to STAF 200 80個 TA平衡閥,從 STAD 15/14 到 STAF 200 Audit of plant with TA Circuit based on a first measurement campaign 利用 TA Circuit 做系統(tǒng)評估 Presettings calculated with TA Circuit TA Circuit 計算出結果后進行預設定 Viscosity corrections checked with TA Select II 利用 TA Select II進行粘度修正 Full balancing performed using TABalance on one TACBI 利用一臺 TACBI儀器完成了系統(tǒng)平衡的調試 JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 38 實際節(jié)約能耗Industrial plant MW cooling capacity 889 m179。/h 335 kPa pump head AFTER Balancing 平衡后 773 m179。/h (13%) 270 kPa pump head (20%) Pumping power saving 電力節(jié)約 : 39 kW Savings 節(jié)約 : 17200€/year BEFORE Balancing 平衡前 JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 39 實際案例Berlaymont – Brussels 布魯塞爾 (Belgium比利時 ) European Union Commission building 歐盟總部 242022 m178。 3000 people 70 interpreter rooms for simultaneous translation 70個同聲翻譯室 JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 40 實際案例Berlaymont – Brussels 布魯塞爾 (Belgium比利時 ) MW cooling capacity: centrifugal glycolised water。 MW absorption MW 制冷量: 離心機 。 MW 溴化鋰吸收式制冷 Ice storage capacity: 324 tons of ice/day. 畜冰量: 324噸 /天 MW heating capacity MW 供熱量 8 floors with 177。1200 cooling ceiling units per floor 8層樓,每層樓 1200個左右末端 177。13000 TA balancing valves (STAD 10 to STAF 300) 總共 13000個左右 TA平衡閥 ( STAD 10 to STAF 300 ) 9730 TA terminal control valves + actuators 9730個 TA末端控制閥以及執(zhí)行器 Presettings calculated with TA Circuit TA Circuit 計算出結果后進行預設定 Full air and hydronic balancing achieved by The CommTech Group 由 CommTech 集團進行全面的空氣以及水力平衡 Hydronic balancing by 2 technicians with 2 TACBI 2位工程師用 2臺 CBI完成了整個系統(tǒng)的水力平衡 JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 41 第二個水力工況條件The differential pressure across the control valves must not vary too much. 通過控制閥的壓差不能有太大的變化 第二個水力工況條件 JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 42 對非線性特性進行補償1 0 09 08 07 06 05 04 03 02 01 000 1 0 2 0 3 0 4 0 5 0 6 0 7 0 9 0 1 0 08 0F l o w i n %L i f t h i n %1 0 09 08 07 06 05 04 03 02 01 000 1 0 2 0 3 0 4 0 5 0 6 0 7 0 9 0 1 0 08 01 0 09 08 07 06 05 04 03 02 01 000 1 0 2 0 3 0 4 0 5 0 6 0 7 0 9 0 1 0 08 0H e a t o u t p u t i n %=+H e a t o u t p u t i n %F l o w i n % L i f t h i n %Cooling/heating coil Control valve Control is easy ! 供冷 /供熱盤管 調節(jié)閥 控制非常容易! JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 43 兩通調節(jié)閥閥權度The available Dp on a fully shut twoway control valve depends on the load conditions (. on the opening of all other control valves). 兩通閥全關時資用壓差取決于負荷情況 (即取決于所有其它調節(jié)閥的開啟度 ? ?DDPPC o n t r o l v a l v e f u l l y C o n t r o l v a l v e f u l l y o p e n a n d d e s i g n f l o ws h u tThe available Dp at one given location is: 某一點的資用壓 min. at design conditions, 最小值:發(fā)生于設計工況下 max. for the min. total flow in the plant ? pump head. 最大值:發(fā)生于系統(tǒng)流量最小情況下 ? 水泵揚程 設計流量下調節(jié)閥全開時 調節(jié)閥全關時 JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 44 在現(xiàn)實條件下控制閥閥權度經常遠遠不能滿足要求? 現(xiàn)實條件下 , 兩通閥的尺寸選擇過大以及根據系統(tǒng)要求流量變化而變化的壓差導致閥權度遠達不到要求 ? 在較低的系統(tǒng)要求下 , 只有很少的流量和管道摩擦力 , 導致作用于控制閥的壓差增大 ? 一個很小的室溫的變化可觀的增加輸出能量 ? 結果 = 振蕩控制 C o n t r o l v a l v e E Q M502010010 2030405030 40 60 70P o w e r o u t p u t %607080901 0 0D e s i g n1 0 0L i f t %80 900 . 50 . 2 5JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 45 兩通調節(jié)閥閥權度Control valve authority should not be lower than 控制閥閥權度不應低于 行程 流量 JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 46 壓差的變化2qP ?D?0 ?1 ?0 ?2 ?0 ?3 ?0 ?4 ?0 ?5 ?0 ?6 ?0 ?7 ?0 ?8 ?0 ?9 ?0 ?1 ?0 ?0 ?1 ?1 ?0 ?1 ?2 ?0 ?1 ?3 ?0 ?5 ?0 ?1 ?0 ?0 ?1 ?5 ?0 ?2 ?0 ?0 ?2 ?5 ?0 ?3 ?0 ?0 Flow Heat output 50 % power 20 % flow 4% pressure drop At 50 % of the heat output, the flow in the plant is only 20% of the design value and the pressure drops are reduced to 4%. All the available pump head applies itself on the 2way control valves. 在 50%熱輸出時,系統(tǒng)中流量只有設計流量的 20%,壓降降至設計壓降的 4%。 所有的水泵資用壓頭作用于兩通調節(jié)閥上。 100% JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 47 控制質量下降Modulating control bees ON/OFF ! Flow Flow Opening Opening Power 50% 9% 34% 50% 開度 調節(jié)型控制變成了開關型! 功率 流量 開度 流量 JeanChristophe Carette, Hydronic College BU Western Europe China September 2022 48 過低的閥權度使調節(jié)控制工作如開 關閥? 變化的壓差造成的過低的閥權度導致昂貴的兩通閥的工作狀態(tài)象便宜的開 /關閥門 ? 結果 : 溫度高低波動 Temperature Set point Time Temperature Set point Time Theory Reality JeanChristophe Carette, Hydronic College BU Western Europe China September