逆流開式冷卻塔計(jì)算(精品ZTQ版)

1、換換熱熱器器計(jì)計(jì)算算（逆逆流流開開式式冷冷卻卻塔塔）序序號(hào)號(hào)名名 稱稱符符號(hào)號(hào)單單位位數(shù)數(shù)值值來來源源或或計(jì)計(jì)算算公公式式計(jì)計(jì)算算結(jié)結(jié)果果其其他他數(shù)數(shù)據(jù)據(jù)校校核核結(jié)結(jié)果果一一基基礎(chǔ)礎(chǔ)數(shù)數(shù)據(jù)據(jù)（一一） 熱熱力力計(jì)計(jì)算算1大氣壓PkPa92.302干球溫度31.203濕球溫度20.004處理水量Qm3/h1300.00中型塔5進(jìn)水溫度t131.006出水溫度t224.007噴淋密度qm3/m2.h小型塔，1216；大中型，101610.60流速2.47m/s滿滿足足流流速速8填料參數(shù)1） 填料高度Hm1.252） 填料特性數(shù)計(jì)算參數(shù)A/2.12m/0.613） 容積散質(zhì)系數(shù)參數(shù)B/3710.00/

2、0.58/0.369選用氣水比/低溫塔，一般在0.50.9之間0.87滿滿足足N N（二二） 阻阻力力計(jì)計(jì)算算GBT 50392-2016 附錄B1風(fēng)機(jī)數(shù)量Nf臺(tái)1.002風(fēng)機(jī)直徑Dfm11.50參考值11.503輪轂直徑dfm1.004進(jìn)風(fēng)口高度H1m5.005進(jìn)風(fēng)口總長Lm12.26參考值12.266噴淋高度H2m0.507氣室高度H3m1.708風(fēng)筒高度H4m2.009填料阻力參數(shù)Ao/2.14mo/0.6310選用電機(jī)功率NoKW37.00軸功率31.16滿滿足足要要求求（三三） 水水量量損損失失計(jì)計(jì)算算1單噴嘴流量Qdm3/h推薦455.002蒸發(fā)系數(shù)Ke1/0.16溫度31.203

3、風(fēng)吹損失率Pw%當(dāng)缺數(shù)據(jù)時(shí)，取0.010.01二二計(jì)計(jì)算算過過程程（一一） 熱熱力力計(jì)計(jì)算算1濕球絕對(duì)溫度TK273.16+293.162飽和水蒸汽壓（）lgP/經(jīng)驗(yàn)公式0.37PkPa2.343干球絕對(duì)溫度TK273.16+304.364飽和水蒸汽壓（）lgP/經(jīng)驗(yàn)公式0.66PkPa4.545空氣相對(duì)濕度/P-0.000662P*(-)/P0.366進(jìn)塔干空氣密度1kg/m3(P-P)*103/287.14*(273+)1.047進(jìn)塔濕空氣比焓h1KJ/kg(DA) 1.005+0.622(2500.8+1.846)*P/(P-*P)60.378出塔飽和空氣比焓h2KJ/kg(DA) 1.

4、005t1+0.622(2500.8+1.846t1)*1*Pt1/(P-1*Pt1)112.549蒸發(fā)帶走熱量系數(shù)K/1-t2/586-0.56(t2-20)0.9610進(jìn)水絕對(duì)溫度Tt1K273.16+t1304.1611飽和水蒸汽壓（t1）lgPt1/經(jīng)驗(yàn)公式0.65Pt1kPa4.4912設(shè)計(jì)容積散質(zhì)系數(shù)xvkg/m3.hN*Q/(KV填料)14643.1613淋水面積Fm2Q/q122.64塔內(nèi)風(fēng)速2.47m/s14填料體積V填料m3F*H153.3015空氣重量風(fēng)速gkg/m2.sG*1/3600/F2.5616填料容積散質(zhì)系數(shù)xvkg/m3.hBgq14857.12滿滿足足要要求

5、求（二二） 阻阻力力計(jì)計(jì)算算圓圓形形正正方方形形長長方方形形1冷卻塔徑（或當(dāng)量直徑）Dm12.50A=11.1mA=12.8m2冷卻塔總高HzmH1+H2+H3+H4+H10.45B=9.6m3平臺(tái)高HpmH1+H2+H3+H8.454進(jìn)風(fēng)口面積A1m2H1*H261.30進(jìn)風(fēng)口風(fēng)速4.94m/s5配水設(shè)備氣流通過面積A2m2F*0.9110.38布水段風(fēng)速2.74m/s6收水設(shè)備氣流通過面積A3m2F*0.98120.19收水段風(fēng)速2.52m/s7淋水填料空隙面積A4m2F*0.9110.38淋水段風(fēng)速2.74m/s8風(fēng)筒收縮后斷面積A5m2Nf*0.785*(Df2-df2)103.08出

6、風(fēng)口風(fēng)速2.94m/s9塔內(nèi)濕空氣密度kg/m31+*P*1000/(416.5*(273.15+)1.0510進(jìn)風(fēng)口阻力P1Pa0.55(G/A1)2/27.0511填料氣流轉(zhuǎn)彎P2Pa0.5(G/F)2/21.6012填料進(jìn)口突然收縮P3Pa0.000124(G/A3)2/20.0013淋水填料阻力P4Pa1*9.81*Ao*(G/A4)mo41.1414配水裝置P5Pa0.6*(1-A2/F)2*1.3+0.5)*(F/A2)2*(G/A2)2/21.5015收水裝置P6Pa5*(1-A3/F)2*2+0.5)*(F/A3)2*(G/A3)2/28.6916風(fēng)機(jī)入口部分阻力P7Pa估值1

7、5.0017總阻力PPaP1+P774.9818風(fēng)機(jī)動(dòng)壓PDPa*G/(0.785*Nf*(D2-df2)2/23.2419風(fēng)機(jī)全壓PtPaP+PD78.2220風(fēng)機(jī)軸功率NoKWG/Nf*/1.2*Pt/(102*9.81*0.95*0.7)31.1621耗電比/No/Q0.03（三三） 水水量量損損失失計(jì)計(jì)算算1噴嘴數(shù)Np個(gè)Q/Qd260.002蒸發(fā)水量損失率Pe%Ke*(t1-t2)1.093冷卻塔蒸發(fā)損失水量Qem3/hPe*Q/10014.114風(fēng)吹損失水量Qwm3/hPw*Q/1001.09E-045塔內(nèi)補(bǔ)水量Qzm3/hQe+Qw14.11備備注注塔內(nèi)流速22.5S型1.25熱熱

8、力力性性能能合合格格A1/F=0.5GB7190.2-2008規(guī)范溫溫差差分分段段數(shù)數(shù)n溫溫差差等等分分值值t溫溫度度飽飽和和蒸蒸氣氣壓壓飽飽和和空空氣氣焓焓備備注注80.875KKpaKJ/kg(DA)一般水溫差15時(shí)T1t1-1t30.13303.294.27107.47常取n=2就可保證精度T2t1-2t29.25302.414.06102.58T3t1-3t28.38301.543.8697.89T4t1-4t27.50300.663.6793.37辛辛普普遜遜積積分分法法T5t1-5t26.63299.793.4989.04T6t1-6t25.75298.913.3184.87T7t

9、1-7t24.88298.043.1480.85出塔飽和空氣溫度=入塔水溫T8t1-8t24.00297.162.9877.00名名稱稱符符號(hào)號(hào)（單單位位）計(jì)計(jì)算算公公式式數(shù)數(shù)據(jù)據(jù)氣水比o0.770.820.870.92風(fēng)量(干空氣)G（m3/h）Q*水*1/964564.031027198.061089832.091152466.11出塔濕空氣比焓h2（KJ/kg）公式1100.0697.6495.5093.59換換熱熱器器計(jì)計(jì)算算（逆逆流流開開式式冷冷卻卻塔塔）焓差等分值h（KJ/kg）(h2-h1)/n4.964.664.394.15塔特性(冷卻)數(shù)N公式21.971.791.661.5

10、5填料特性數(shù)Am1.811.881.952.01應(yīng)滿足xvxv公式1：h2=h1+4.1868(t1-t2)/(K)公式2：理論冷卻數(shù) N=4.1868(t1-t2)/(3n)*1/(h1-h2)+4/(hT1-(h2-h)+2/(hT2-(h2-2h) +4/(hT3-(h2-3h)+2/(hT4-(h2-4h)+4/(hT5-(h2-5h) +2/(hT6-(h2-6h)+4/(hT7-(h2-7h)+1/(h2-h1)A/B=4/3宜4.0m/s0 0. .7 77 7 0 0. .8 82 2 0 0. .8 87 7 0 0. .9 92 2 0 0. .9 97 7 0 0. .0 00 0 0 0. .5 50 0 1 1. .0 00 0 1 1. .5 50 0 2 2. .0 00 0 2 2. .5 50 0 理論冷卻數(shù)填料特性數(shù)0.971215100.1491.87備備注注一般水溫差15時(shí)常取n=2就可保證精度辛辛普普遜遜積積分分法法數(shù)數(shù)據(jù)據(jù)3.941.472.08公式2：理論冷卻數(shù) N=4.1868(t1-t2)/(3n)*1/(h1-h2)+4/(hT1-(h2-h)+2/(hT2-(h2-2h) +4/(hT3-(h2-3h)+2/(hT4-(h2-4h)+4/(hT5-(h2-5h) +2/(hT6-(h2-6h)+4/(h