某培训中心空调工程设计大学本科毕业论文

贵州大学本科毕业论文（设计）表6.28。表STYLEREF1\s6.SEQ表\*ARABIC\s128水管局部阻力系数名称局部阻力系数ζ蝶阀（全开）0.1～0.3闸阀（全开）DN1520～5080100125ζ1.50.50.40.20.1变径管：渐缩渐阔0.10（对应小断面的流速）0.30（对应小断面的流速）续表名称局部阻力系数ζ90°普通弯头DN2025324050ζ2.01.51.51.01.0水箱接管：进水口出水口1.00.50（箱体上的出水管在箱内与壁面保持平直，无突出部分）水泵入口1.0过滤器2.0～3.0截止阀（直杆式）DN2025324050ζ10.09.09.08.07.0表STYLEREF1\s6.SEQ表\*ARABIC\s129三通局部阻力系数形式简图流向局部阻力系数ζ形式简图流向局部阻力系数ζ2→31.51→30.11→30.11/3→23.01→21.52→1/31.5表STYLEREF1\s6.SEQ表\*ARABIC\s130冷水管最大流速（m/s）管径mm152025324050流速m/s0.81.01.21.41.72.0二层水系统水力计算水系统水力计算过程（以28管段为例）：根据公式：=1331/（4.19×1000×5）=0.0635=228.9Kg/h为了保证比摩阻不大于300Pa/m，从节省的方案出发，在流速范围内选择小管径，管段流量负荷小于4000W的，均取20mm。由此可得28号管段直径为20mm，求得流速V=0.36m/s。同时查得比摩阻Rm=38.7Pa/m。=2.45×38.7=94.82pa=4.5×1000×0.36×0.36×0.5=291.6Pa.管段总阻力：△P=94.82+291.6=386.42pa。表STYLEREF1\s6.SEQ表\*ARABIC\s131二层水系统水力计算编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段05741.9333890.81156.1502.68330.33990.8418.31409.1管段12830.4164590.63148.65406.21195.961175.6923.12098.7管段22346.2136430.81212.64323.24328.70.132.9689721.8管段3724.342120.4195.83257.8284.12168.2749.4917.6管段4724.342120.4195.83251.7884.11.5126.1170.6296.7管段5377.521950.3398.32200.455.84.5250.939.3290.2管段6346.920170.3184.29201.9247.14.5211.8161.8373.7管段7724.342120.4195.83251.7884.13252.3170.6422.8管段8346.920170.3184.29200.5747.11.570.648118.7管段9377.521950.3398.32201.7555.81.583.6172.1255.7管段10897.552190.51142.84252.98129.13387.3425.7813管段11484.328160.43155.3200.5291.84.5412.980.8493.7管段12413.224030.37116.02201.7566.84.5300.7203503.7管段13484.328160.43155.3202.9891.81.5137.6462.8600.4管段14484.328160.43155.3201.2891.84.5412.9198.8611.7管段152453.7142680.85231.45329.94359.531078.42300.63379管段16817.947560.46120.1251.78107.23321.6213.8535.4管段17408.923780.36113.82201.1965.44.5294.5135.4429.9管段18408.923780.36113.82201.1365.44.5294.5128.6423.1管段19817.947560.46120.1258107.22214.4960.81175.2管段20817.947560.46120.1252.98107.21.5160.8357.9518.7管段21408.923780.36113.82201.1365.44.5294.5128.6423.1管段22408.923780.36113.82201.1965.44.5294.5135.4429.9管段23817.947560.46120.1252.98107.23321.6357.9679.5管段24408.923780.36113.82201.1365.44.5294.5128.6423.1管段25408.923780.36113.82201.1965.44.5294.5135.4429.9管段26457.826620.4140.01203.58822164501.2665.2续表编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段27228.913310.3638.7202.3864.84.5291.692.1383.7管段28228.913310.3638.7202.4564.84.5291.694.82386.42管段294141601605.734.495.41.821.1210.513.524.0管段302071601201.92.9912.11.050.252.01.33.3管段312071601200.52.995.41.050.250.51.31.9管段324141601605.354.495.41.821.129.813.523.3管段332071601201.832.9912.11.050.251.91.33.3管段342071601200.382.995.41.050.250.41.31.8管段354141601605.774.495.41.821.0910.513.223.7管段362071601201.882.9912.11.050.252.01.33.3管段372071601200.522.995.41.050.250.61.31.9管段384141601205.385.995.43.790.6320.413.533.9管段392071601201.812.9921.51.050.251.91.33.2管段402071601200.412.995.41.050.250.41.31.8管段412071601200.492.995.41.050.250.51.31.9最不利环路为0-1-2-3-4-6,压降5817.6pa，盘管压降14400pa，总压降20217.6pa。图STYLEREF1\s6.SEQ图\*ARABIC\s18二层水系统图三层水系统水力计算表STYLEREF1\s6.SEQ表\*ARABIC\s132三层水系统水力计算编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段05180301230.65128.4502.62211.33633.8336.5970.2管段12911169260.61159.2402.99186.14.5837.2475.91313管段2151387980.7391.623210.97266.52532.910051538管段381347300.64118.9251.89204.81.5307.2224.7531.9管段440723650.32112.7201.0751.24.5230.4120.6351管段540723650.32112.7203.9151.24.5230.4440.6671续表编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段670040680.5589.85252.41151.31.5226.9216.5443.4管段735020340.2785.59200.4836.50.13.641.144.7管段835020340.2785.59203.2236.54.5164275.6439.6管段935020340.2785.59200.7436.54.516463.3227.4管段10104860940.51194.4251.89130.13390.2367.5757.6管段11104860940.51194.4250130.12260.10260.1管段1340723650.32112.7201.5751.26307.2176.9484.1管段1464137290.5261.6204.04125675010571807管段1735020340.2785.59202.4136.53109.4206.3315.6管段1835020340.2785.59201.0436.54.516489253管段192269131970.63199.73211.66198.54.589323293222管段2081347300.64118.9251.89204.83614.4224.7839.1管段2140723650.32112.7201.5351.24.5230.4172.4402.8管段2240723650.32112.7203.4551.24.5230.4388.7619.1管段2370040680.5589.85252.41151.33453.8216.5670.3管段2435020340.2785.59200.5136.50.13.643.747.3管段2535020340.2785.59201.5836.54.5164135.2299.3管段2635020340.2785.59202.3836.54.5164203.7367.7管段2775643990.59103.9259.21174.12348.1956.61305管段2840723650.32112.7201.8951.21.576.8213289.8管段2940723650.32112.7200.951.24.5230.4101.4331.8管段3035020340.2785.59202.4136.51.554.7206.3260.9管段3135020340.2785.59200.9136.54.516477.9241.9最不利环路为0-1-2-3-5,压降5024.2pa，盘管压降14400pa，总压降19424.2pa。图STYLEREF1\s6.SEQ图\*ARABIC\s19三层水系统图四、五层水系统水力计算表STYLEREF1\s6.SEQ表\*ARABIC\s133四、五层水系统水力计算编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段06874399720.87220502.84378.531135.4624.71760管81268.7401.93328.14.51476.2518.51994.8管段23269190090.69198.2407.99238.10.123.81583.91607.7管段381047100.63117.9253.03198.561190.7357.41548.1管段440523550.32111.8201.0751.24.5230.4119.6350管段540523550.32111.8201.2551.21.576.8139.8216.6管段61892110010.52141.8327.97135.22270.41130.11400.5管段781047100.63117.9253.03198.53595.4357.4952.7管段840523550.32111.8201.2151.24.5230.4135.3365.7管段940523550.32111.8201.1151.24.5230.4124.1354.5管段10514.729930.4173.8202.96802160514.5674.5管段11514.729930.4173.8201.77801.5120307.6427.6管段12514.729930.4173.8202.1804.5360365725管段13567.232980.44208.1201.9796.83290.4409.9700.3管段14283.616490.2258.6201.2724.24.5108.974.4183.3管段15283.616490.2258.6201.3524.24.5108.979.1188管段16567.232980.44208.1201.9796.83290.4409.9700.3管段17283.616490.2258.6201.2224.24.5108.971.4180.3管段18283.616490.2258.6201.424.24.5108.982190.9管段19567.232980.44208.1201.9796.81.5145.2409.9555.1管段20283.616490.2258.6201.2124.24.5108.970.9179.8管段21283.616490.2258.6201.4124.24.5108.982.6191.5管段223038176650.64172.5406.11204.84.5921.61054.21975.8管段2381047100.63117.9252.93198.53595.4345.6940.9管段2440523550.32111.8201.151.24.5230.4123353.4管段2540523550.32111.8201.2251.24.5230.4136.4366.8管段26166196570.81109.1328.14328.12656.18881544.1管段2781047100.63117.9252.93198.53595.4345.6940.9管段2840523550.32111.8201.2451.24.5230.4138.6369管段2940523550.32111.8201.0851.24.5230.4120.8351.2管段30567.232980.44208.1201.7796.83290.4368.3658.7管段31283.616490.2258.6201.3924.21.536.381.4117.7管段32283.616490.2258.6201.2324.24.5108.972180.9管段33283.616490.2258.6202.9824.25121174.5295.5管段34283.616490.2258.6201.7724.21.536.3103.7140续表编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段35283.616490.2258.6202.2424.24.5108.9131.2240.1管段36567.232980.44208.1201.9796.83290.4409.9700.3管段37283.616490.2258.6201.3724.24.5108.980.2189.1管段38283.616490.2258.6201.2524.24.5108.973.2182.1最不利环路为0-1-2-6-10-11-12,压降8590.1pa，盘管压降20500pa，总压降29090.1pa。图STYLEREF1\s6.SEQ图\*ARABIC\s110四、五层水系统图六层水系统水力计算表STYLEREF1\s6.SEQ表\*ARABIC\s134六层水系统水力计算编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段07806453900.677.6702.41803540186.2726.2管5693.8501.9156.84.5705.6178.2883.8管段23784220050.8258.5407.893200段32253131010.62194327.95192.2596115422503管段489251860.43141.225392.456554.7423.6978.3管段544625930.35130.5201.3561.251.591.9176.2268.1管段644625930.35130.5200.9761.251.591.9126.6218.5管段763937180.5255.5202.21253375562.1937.1管段832018590.2570.8201.1131.254.5140.678.6219.2管段932018590.2570.8201.5131.254.5140.6106.9247.5管段1072241970.3595.2253.0261.252122.5287.5410管段1172241970.3595.225261.251.591.9190.4282.3管段1272241970.3595.2251.8761.254.5275.6178453.6管段1332018590.2570.8201.1331.251.546.980126.9管段1489251860.43141.225392.456554.7423.6978.3管段1544625930.35130.5201.0361.254.5275.6134.4410管段1644625930.35130.5201.2961.251.591.9168.3260.2管段1763937180.5255.5202.21256750562.11312管段1832018590.2570.8201.1831.254.5140.683.5224.2续表编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段1932018590.2570.8201.4431.251.546.9102148.8管段2063937180.5255.5202.21254.5562.5562.11125管段2132018590.2570.8201.2831.254.5140.690.6231.2管段2232018590.2570.8201.3431.254.5140.694.9235.5管段233382196670.71208.5406.25252.11.5378.113031681管段241851107630.51133.8328.17130.15650.310931743管段2532018590.2570.8202.4831.255156.3175.6331.8管段2632018590.2570.820231.251.546.9141.6188.5管段2732018590.2570.8202.4831.251.546.9175.6222.5管段2889251860.43141.2252.992.456554.7409.5964.2管段2944625930.35130.5200.7461.254.5275.696.6372.2管段3044625930.35130.5201.5161.251.591.9197.1288.9管段3163937180.5255.52021253375511886管段3232018590.2570.8200.9631.254.5140.668208.6管段3332018590.2570.8201.6631.254.5140.6117.5258.2管段3489251860.43141.2252.992.453277.4409.5686.8管段3544625930.35130.5200.9861.254.5275.6127.9403.5管段3644625930.35130.5201.3461.251.591.9174.9266.7管段3763937180.5255.5202.21256750562.11312管段3832018590.2570.8201.4931.254.5140.6105.5246.1最不利环路为0-1-2-3-10-11-12,压降7330.8pa，盘管压降44000pa，总压降51330.8pa。图STYLEREF1\s6.SEQ图\*ARABIC\s111六层水系统图七、八、九层水系统水力计算表STYLEREF1\s6.SEQ表\*ARABIC\s135七、八、九层水系统水力计算编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段06907401630.87219.35DN501.82378.531135.4399.221534.6管8258.93DN402.743204.51440709.472149.5续表编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段23234188040.68191.45DN408.03231.20.123.11537.31560.5管段31894110110.52139.63DN326.51135.22270.4908.991179.4管段4716.941690.3594.02DN254.6661.253183.8438.13621.9管段5381.322170.397.73DN201.69454.5202.5165.16367.7管段6335.719520.2677.4DN200.7833.84.5152.160.37212.5管段7554.132220.43195.38DN203.892.453277.4742.441019.8管段827716110.2254.59DN200.7824.24.5108.942.58151.5管段927716110.2254.59DN201.8424.24.5108.9100.45209.3管段10622.536200.49243DN208.04120.12240.11953.72193.8管段11622.536200.49243DN203.8120.11.5180.1923.41103.5管段12311.318100.2467.44DN200.8228.84.5129.655.3184.9管段13311.318100.2467.44DN201.828.84.5129.6121.39251管段14716.941690.3594.02DN254.6661.253183.8438.13621.9管段15381.322170.397.73DN202.12454.5202.5207.19409.7管段16335.719520.2677.4DN200.3533.84.5152.127.09179.2管段17623.236240.49243.5DN203.8120.13360.2925.31285.5管段18311.618120.2467.58DN202.2728.84.5129.6153.41283管段19311.618120.2467.58DN200.3528.84.5129.623.65153.3管段20554.132220.43195.38DN203.892.451.5138.7742.44881.1管段2127716110.2254.59DN202.2424.24.5108.9122.28231.2管段2227716110.2254.59DN200.3824.24.5108.920.74129.6管段233119181370.66178.74DN405.22217.84.5980.1933.021913.1管段24716.941690.3594.02DN254.6661.253183.8438.13621.9管段25381.322170.397.73DN200.2454.5202.519.55222管段26335.719520.2677.4DN202.2733.84.5152.1175.7327.8管段271848107460.51133.37DN328.02130.12260.11069.61329.7管段28716.941690.3594.02DN254.6661.253183.8438.13621.9管段29381.322170.397.73DN202.1454.5202.5205.23407.7管段30335.719520.2677.4DN200.3733.84.5152.128.64180.7管段3157733550.45210.73DN208.04101.32202.51694.31896.8管段3257733550.45210.73DN203.8101.31.5151.9800.77952.6管段33299.917440.2463.03DN202.2128.84.5129.6139.3268.9管段3427716110.2254.59DN200.4124.24.5108.922.38131.3管段35554.132220.43195.38DN203.892.453277.4742.441019.8管段3627716110.2254.59DN202.2524.24.5108.9122.83231.7管段3727716110.2254.59DN200.3724.24.5108.920.2129.1管段38554.132220.43195.38DN203.892.453277.4742.441019.8续表编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段3927716110.2254.59DN202.2724.24.5108.9123.92232.8管段4027716110.2254.59DN200.3524.24.5108.919.11128最不利环路为0-1-2-3-10-11-12,压降为9906.2pa，盘管压降17500pa，总压降26506.2pa。图STYLEREF1\s6.SEQ图\*ARABIC\s112七、八、九层水系统图十层水系统水力计算表STYLEREF1\s6.SEQ表\*ARABIC\s136十层水系统水力计算编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段08886516740.6899.32DN701.87231.23693.6185.7879.3管6107.24DN502.691804.5810288.51098.5管段24039234860.5178.99DN506.62130.10.113522.9535.9管段32385138660.66216.07DN328217.82435.61728.62164.2管段498457220.48169.72DN254.71115.23345.6799.41145管段5514.729930.4170.28DN201.69804.5360287.8647.8管段6469.327290.37143.42DN200.6368.454.530890.4398.4管段7708.541200.3491.99DN253.7657.83173.4345.9519.3管段8354.320600.2885.41DN200.7839.24.5176.466.6243管段9354.320600.2885.41DN201.8439.24.5176.4157.2333.6管段1069240240.3488.06DN258.0757.82115.6710.6826.2管段1169240240.3488.06DN253.7657.81.586.7331.1417.8管段1234620120.2781.8DN201.7736.454.5164144.8308.8管段1334620120.2781.8DN200.8536.454.516469.5233.6管段1498457220.48169.72DN254.71115.23345.6799.41145管段15514.729930.4170.28DN200.63804.5360107.3467.3管段16469.327290.37143.42DN201.6968.454.5308242.4550.4管段17670.338980.3383.03DN253.7654.453163.4312.2475.5管段18335.219490.2677.18DN201.8433.84.5152.1142294.1管段19335.219490.2677.18DN200.7833.84.5152.160.2212.3续表编号流量(kg/h)负荷(w)流速(m/s)Rm(Pa/m)管径长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)管段20708.541200.3491.99DN253.7657.81.586.7345.9432.6管段21354.320600.2885.41DN202.1639.24.5176.4184.5360.9管段22354.320600.2885.41DN200.4639.24.5176.439.3215.7管段234139240680.5282.72DN505.4135.24.5608.4446.71055.1管段2498457220.48169.72DN254.71115.23345.6799.41145管段25514.729930.4170.28DN200.39804.536066.4426.4管段26469.327290.37143.42DN201.9368.454.5308276.8584.8管段272446142260.68226.87DN327.96231.22462.41805.92268.3管段2898457220.48169.72DN254.71115.23345.6799.41145管段29514.729930.4170.28DN201.96804.5360333.7693.7管段30469.327290.37143.42DN200.3668.454.530851.6359.7管段31753.943840.37103.22DN257.9268.452136.9817.5954.4管段32753.943840.37103.22DN253.7668.451.5102.7388.1490.8管段33399.723240.31106.58DN202.248.054.5216.2234.5450.7管段34354.320600.2885.41DN200.4239.24.5176.435.9212.3管段35708.541200.3491.99DN253.7657.83173.4345.9519.3管段36354.320600.2885.41DN202.1139.24.5176.4180.2356.6管段37354.320600.2885.41DN200.5139.24.5176.443.6220管段38708.541200.3491.99DN253.7657.83173.4345.9519.3管段39354.320600.2885.41DN202.0839.24.5176.4177.7354.1管段40354.320600.2885.41DN200.5439.24.5176.446.1222.5最不利环路0-1-2-3-10-11-12,压降为6230.7pa，盘管压降17500pa，总压降23730.7pa。图STYLEREF1\s6.SEQ图\*ARABIC\s113十层水系统水图为了合理分配水系统，本建筑十层共分三根立管供回水，各层阻力压降数值如表STYLEREF1\s6.38.表STYLEREF1\s6.SEQ表\*ARABIC\s138各层阻力压降层数二层三层四五层六层七八九层十层供水20217.619424.229090.151330.826506.223730.7回水20217.619424.229090.151330.826506.223730.7供回水总和40435.238848.458180.2102661.615903747461.4整栋楼最大压降为504.8Kpa。各层立管详细表表STYLEREF1\s6.SEQ表\*ARABIC\s139立管水力计算表编号流量(kg/h)负荷(kw)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)第十层620333611.41061257.2986.80.198.7763.2861.9第九层530983091.2157.21253.67230.172.3565.9638.2第八层462242691.051021253.6547.90.154.8367.2422第七层393512291.391021003.6969.50.196.9367.2464.1第六层324771891.15261.21005.8660.40.16615151581第五层24659143.50.87128.81003.6380.70.138.1463.7501.7第四层17785103.50.98128.8803.6483.50.148.3463.7512第三层1091263.50.79128.8704.5310.50.131579.6610.6第二层573933.40.81132.55023300.133265298总阻力7554.1pa。表STYLEREF1\s6.SEQ表\*ARABIC\s140新风机组立管详细表编号流量(kg/h)负荷(kw)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)第二层470827.40.67120502222.10.122.2239261.2第三层1051761.20.7697.6704.5288.40.128.8439.2468第四层1520888.51.1102703.6603.10.160.3367.2427.5第五层199331161.1114803.6607.30.160.7409469.7第六层274941600.971671005.8473.30.147.3970.91018.2第七层326491901.162141003.6667.40.166.7770.4837.1第八层378042201.342581003.6894.80.189.5928.11017.6第九层429592500.971291253.6473.30.147.3463.7511第十层532703101.211331257.2727.70.172.8953.81026.6总阻力6034pa。表STYLEREF1\s6.SEQ表\*ARABIC\s141新风机组支管详细表编号流量(kg/h)负荷(kw)流速(m/s)Rm(Pa/m)管径DN长(m)动压(Pa)ζ△Pd(Pa)△Pl(Pa)△P(Pa)第二层471427.40.67106502222.60.122.3212234.3第三层580033.80.82157502336.90.133.7314.4348.1第四层469327.30.66102502220.60.122.1204226.1第五层469327.30.66102502220.60.122.1204226.1第六层7557441.07261502572.10.157.2522.4579.6第七层5162300.73129502266.90.126.7257.6284.3第八层5162300.73129502266.90.126.7257.6284.3第九层5162300.73129502266.90.126.7257.6284.3第十层1032460.10.75133702277.90.127.8264.9292.7最大阻力为579.6pa。冷凝水管管径的确定各种冷换热器盘管在夏季工况时会不断地产生大量的冷凝水，为了及时地排走这些冷凝水，必须设置凝结水系统。一般情况下，每1KW的冷负荷，每小时产生约0.4Kg的冷凝水，则根据各层新风空调机组和盘管的冷负荷可查《实用制冷与空调工程手册》选择冷凝管径。1.风机盘管的凝结水盘的泻水支管坡度≥0.01。其他水平支管沿水流方向，应保持≥0.002的坡度。2．一般情况下，每1kW的冷负荷每小时产生约0.4kg左右的冷凝水；在潜热负荷较高时，每1kW冷负荷每小时产生约0.8kg冷凝水。3、通常，可以根据机组的冷负荷Q按下列数据近似选定冷凝水管的公称直径。表STYLEREF1\s6.SEQ表\*ARABIC\s142冷凝管径取值表负荷值范围冷凝管径Q≤7kWDN207.1～17.6kWDN2517.7～100kWDN32101～176kWDN40177～598kWDN50599～1055kWDN80续表负荷值范围冷凝管径1056～1512kWDN1001513～12462kWDN125》12462kWDN150阻力平衡因为每个供水和回水管上都装有阀门，可以通过阀门来调节水量的大小，一则在设备安装调试过程中可以调整管道的阻力使其平衡，二则方便对系统进行检修和维护。

冷热源、水泵和膨胀水箱的选择冷热源的选择该栋宿舍楼的制冷量和新风负荷总为645.3.KW，考虑修正系数1.2后得到774.4KW,制热量为247.9KW,考虑修正系数1.2后得到297.5KW。选择天津天加空调设备公司有限公司的涡旋式风冷模块机组，型号TCA系列211/CH机组，一共十二台模块机组，其详细性能参数如表7.1。表STYLEREF1\s7.SEQ表\*ARABIC\s11风冷热泵性能参数型号TCA-211/CH组合方式201CH*12制冷量KW792制冷剂种类R22制热量KW864充注量Kg228输入功率KW16.5电源380V水流量m³/h136.6水阻力Kpa140进水管管径DN50风机风量288000m³/h

外形尺寸长：2206mm宽：12360mm高：2144mm水泵的选择供水水泵的扬程Hp（KPa）的计算式如7.1：（公式STYLEREF1\s7.SEQ（公式\*ARABIC\s11）式中：、——水系统总的沿程阻力和局部阻力损失（KPa）；——设备的阻力损失（KPa）；K——安全系数，在1.1-1.2范围内；水泵的流量计算式如公式7.2：（公式STYLEREF1\s7.SEQ（公式\*ARABIC\s12）=774.43600/(4.1910005)=133.1m³/h。新风机组水泵的扬程Hp（KPa）的计算如下：由上面数据可以选择IS型单级离心泵，型号IS125-100-200B，选择离心泵两台（其中一台作为备用），其性能参数见表7.2。表STYLEREF1\s7.SEQ表\*ARABIC\s12IS型单级离心泵性能参数型号流量(m3/h)扬程(m)效率(%)转速(r/min)轴功率KW电机功率(kW)IS125-100-200B1604081290021.5130新风机组的选型一楼通风机的风量应在系统的总风量上附加风管和设备的漏风量=13677.5×1.1=15045.8m³/h-系统的总风量，m³K-排烟风道的漏风系数，采用钢管风道，K=1,.1-1.2，此处取K=1.1Q-通风的风量，m³风压=85.3pa其中，为风管阻力，=77.53pa排烟风机：=58620×1.1=64482m³/h查相关资料，选取上海新晃空调设备有限公司（TICA）的空气处理机组11台，其中一楼采用北京风机二厂的设备，选用型号为参数示于表7.3。表STYLEREF1\s7.SEQ表\*ARABIC\s13新风机型号楼层新风负荷KW新风量m³/h规格额定风量m³/h风量范围m³/h冷量KW热量KW水阻Kpa全压第一层-13677.5NO6C19646147553143第二层27.4324962.525001920-280032.5140.4349392第三层33.752562330002200-330037.3148.5949392第四层27.3120732.525001920-280032.5140.4349392第五层27.3120732.525001920-280032.5140.4349392第六层43.9833393.535002200-395044.8355.949392第七层30.0422802.525001920-280032.5140.4349392第八层30.0422802.525001920-280032.5140.4349392第九层30.0422802.525001920-280032.5140.4349392第十层60.084563550004700-645065.1680.7739451膨胀水箱大小的计算对于空调水系统为闭式系统时，为使系统中的水因温度变化而引起的体积膨胀的余地，以及有利于系统的空气的排除，所以在系统中设置一个膨胀水箱，连接在水泵的吸入侧，也即在排水管道上，本设计采用闭式水箱。膨胀水箱的容积由下式计算：（公式STYLEREF1\s7.SEQ（公式\*ARABIC\s13）式中：Vp——膨胀管有效容积。即从信号管到溢流管之间高差内的容积（m3）；α——水的容积膨胀系数，取0.0006L/℃；Δt——最大的水温变化值（℃），取30℃。Vs——膨胀水箱系统的水的容量，即系统中管道和设备内总水容量。Vs可以按照经验值计算，按照供冷时每立方米为1.3升计算，由实际建筑面积为8997.12m3，可以估算出Vs=11696.3L，代入上式中Vp=0.21m³。选择方形膨胀水箱。表STYLEREF1\s7.SEQ表\*ARABIC\s14膨胀水箱尺寸公称容积m30.5外形尺寸mm水箱配管的公称直径mm有效容积m30.61长宽高溢流管排水管膨胀管信号管循环管水箱自重kg156.39009009004032252020

空调系统的消声、保温、防腐、减振与防火排烟空调系统的消声空调系统中的主要噪声源是通风机。通风机噪声的产生和许多因素有关，尤其与叶片形式、片数、风量、风压等参数有关。风机噪声是由叶片上紊流而引起的宽频带的气流噪声以及相应的旋转噪声，后者可由转数和叶片数确定其噪声的频率。在通风空