換熱站制冷站生活熱水計(jì)算

低區(qū)最高處高度,補(bǔ)水箱底高度,管道K值,補(bǔ)水溫度,制冷/冷熱

21.2m,-4m,0.2mm,5℃,1

,,,,,

"1.總計(jì)算熱負(fù)荷

",平米負(fù)荷(W),面積(萬(wàn)㎡),Qjz(KW),

,90,2.5,2250,

,單位面積水容量,系統(tǒng)水容量Vc,,

,1L/㎡,25m3,,

,,,,,

"2.循環(huán)水(水泵)流量

","t""1(供水)","t""2(回水)",G(t/h),

,7,12,387.0,

,DN,流速,摩阻,

,300,1.52,62.4,

,水泵幾用,單臺(tái)G(t/h),選型x1.1G(t/h),

,2,193.5,212.9,

,DN,流速,摩阻,

,250,1,39,

"揚(yáng)程

",K（1.05-1.10）,H1(8-15m)鍋爐壓降,H2（5-10m),

,1.05,8,6,

,外網(wǎng)壓損(Kpa),最不利戶壓損(Kpa),揚(yáng)程,

,60,100,31.84,

,,,,,

3.補(bǔ)給水泵流量,系統(tǒng)水容量,補(bǔ)水量(t/h),,

,25.00,1.25,,

,DN,流速,摩阻,

,25,0.71,377.2,

,水泵幾用,單臺(tái)G(t/h),,

,1,0.63,,

,DN,流速,摩阻,

,25,0.35,103.3,

揚(yáng)程,最弱管材承壓,補(bǔ)水點(diǎn)最大允許工作壓力,補(bǔ)水泵揚(yáng)程,泵揚(yáng)程曲線范圍

,800KPa,800KPa,46.68m,26.7～66.12m

,H-P1,揚(yáng)程判定,壓力比αt,壓力比判定

,190.464KPa,揚(yáng)程滿足,0.49,壓力比不滿足

,,,,,

4.定壓,,,,

定壓罐(不容納膨脹水),定速泵調(diào)節(jié)容積Vt,β,定壓罐容積,

,31.25L,1.05,65L,

定壓罐(不容納膨脹水),變頻泵調(diào)節(jié)容積Vt,β,定壓罐容積,

,10.42L,1.05,22L,

氣壓罐工作壓力值,補(bǔ)水泵啟動(dòng)壓力,補(bǔ)水泵停止(電磁閥關(guān)閉)壓力,電磁閥開(kāi)啟壓力,安全閥開(kāi)啟壓力

,P1(KPa),P2,P3,P4

,267KPa,648KPa,720KPa,800KPa

,,系數(shù),系數(shù),

,,0.9,0.9,

"膨脹水量(回至水箱)

",Vp,膨脹管管徑DN,,

,10.3L,25,,

開(kāi)式水箱定壓,V,,,

,41.55,,,

,,,,,

5.水處理器,系數(shù)(1～1.5),產(chǎn)水量(t/h),,

,1.2,0.75,,

,DN,流速,摩阻,

,32,0.26,42.7,

,,,,,

6.補(bǔ)水箱,補(bǔ)水時(shí)間,G(t/h),,

,60min,0.64,,

,,,,,

"7.一次流量（水）

",t1(進(jìn)水溫度),t2(出水溫度),G2(t/h),

,-5,5,193.50,

,DN,流速,摩阻,

,80,10.69,17329.3,

一次流量（汽）,飽和水蒸氣壓力(Mpa),飽和水蒸氣溫度,出口水溫,

,0.40,142.1,80,

,i1(KJ/KG)(進(jìn)焓),i2(KJ/KG)(出焓),G2