FN系列方形逆流式玻璃冷却塔是机械工业部第四设计研究院设计的节能型新产品。该产品应用了四院获得的"节能型玻璃钢冷却塔”专利，特别是冷却塔风机配有变扭矩离极双速电机，当气温较低时（例如晚上），电机开低速，冷却塔噪声可低3-5dB(A)。此外用双速电机节能显著，经测算，多台冷却塔配单速电机时，虽然在空气湿球湿度低时可停部分电机节电，但仍比用双速电机多耗电40%（以年计）。本产品还应用了四院获得的国家专利“方形逆流式冷却塔用斜梯形波填料片”，经北京水科院和佛山实塔测试，其热力、阻力特性均优于其它填料。电机、风机均配套供应，需本厂派员工到现场安装或技术指导。产品型号说明:方形逆流式冷却塔有三大系列、九种型号、九十个产品.结构特点（1）填料：采用四院专利产品--斜梯形波填料片，横向增加了凸筋，水的再分配能力大，阻力小，热力性能好，耐高温70℃，耐低温-50℃，阻燃性好。（2）电机：清华大学电机系设计，由营孟津电机厂制造的四院专利产品一变扭矩变极低噪声节能电机，密封防水性能好，耐高温、效率高、噪声小。（3）减速装置：功率≤11/5.5KW的减速装置，采用涤纶纤维增强氯丁橡胶动力带传动，耐高温、效率高，遇水不伸展，克服了打滑现象，噪声很小。功率≥15/7.5KW的减速装置，采用齿轮减速方式，电机安装在风筒外部。（4）风机：清华大学工程力学系根据本系列产品参数设计的低噪声、高效率、机翼形玻璃钢叶片，噪声小，效率高，叶片角度可调。（5）收水及布水装置：采用反射型低压喷嘴，对于小塔采用单旋流喷嘴，布水均匀、水压小。所设收水装置，可使飘水损失下降到0.01%。（6）吸声设施：超低噪声型冷却塔在上塔体出风口上面安装了带吸声材料的屏蔽及吸声栅，以达到最大的降噪效果。（7）吸声设施：超低噪声型冷却塔在上塔体出风口上面安装了带吸声材料的屏蔽及吸声栅，降低了风机及电机的噪声。对于小塔设蘑菇型吸声栅。（8）滴水降噪垫：对低噪声及超低噪声型冷却塔，专门设计了透水性好的消声垫，其下设有一层斜波片，大大降低了滴水噪声。（9）检修平台：塔顶花纹钢板检修平台，便于维护及安装。（10）下塔盘：浅水盘及深及深水盘的冷却塔设有下水盘，供存水用。根据订货要求，可配溢水、排污、自动及手动给水管，可直接从下塔盘吸水。（11）支架：冷却塔钢支架，镀锌并涂环氧沥青漆防腐，紧固件都采用镀锌螺栓。低温降DFN系列方形逆流式玻璃钢冷却塔主要参数型号 参数名τ=28 o C冷却水量(m 3 /h )τ=27 o C冷却水量(m 3 /h )主要尺寸(mm)风量(m 3 /h )风机直径(mm)电机功率(kw)重量(t)进水压力噪声dB(A)当量直径Δt=5 o CΔt=5 o CΔt=5 o CΔt=5 o C总高度宽度B自重运转重10 4 PaDm10m16mDm(m)DFNL-10010074.4118.786.0383026006200018003.0/1.51.470526.259.05247.03.02DFNDP-10043901.8363.18DFNGP-10046902.2155.48DFNL-150150109.8175.1126.9405030008400021004.0/2.02.213.026.360.55450.63.47DFNDP-15046702.47354.23DFNGP-15049702.81357.33DFNL-200200148.9237.4172.14340360011500028005.5/2.72.6353.666.562.055.652.34.15DFNDP-20049603.01755.4DFNGP-20052603.74410.18DFNL-300300224.9350.6258.35010430015860034007.5/3.73.745.235.862.057.854.44.94DFNDP-30056904.2847.72DFNGP-30059905.023514.14DFNL-400400299.9467.4344.453004800213000380011/5.54.5056.416.062.558.855.75.51DFNDP-40060405.1859.52DFNGP-40063405.91617.29DFNL-500500374.9584.3430.459005300265000380015/7.55.617.986.462.559.356.26.08DFNDP-50067006.44311.78DFNGP-50070007.34421.26DFNL-600600448.5698.9514.961406000317500420015/7.67.15710.086.562.560.557.46.88DFNDP-60069808.22814.95DFNGP-60072809.222526.92DFNL-750 561.7875.3644.9644068004000004200 9.1812.886.863.061.458.47.79DFNDP-750729010.548519.12DFNGP-750759011.76434.42DFNL-900900673.41049.5773.269507300490000470030/1510.625157.063.862.960.08.36DFNDP-900790012.20622.19DFNGP-900820013.540539.75DFNL-10501050786.61225.9903.171507800556000470030/1612.83518.027.064.663.153.98.93DFNDP-1050810014.63726.22DFNGP-1050840016.09946.14说明：1表中所列为湿球温度 τ=28 o C ， τ=27 o C工况下； Δt=5 o C 的t1=37 o C,t2=32 o C; Δt=8 o C时t1=40 o C,t2=32 o C的冷却水量2，表中噪声值为夜间电机低速运转，并设有滴水吸声垫的数值，不设滴水吸声垫将比表中数值高5dB(A)中高温降工业型GFN系列方形逆流式玻璃钢冷却塔主要参数型号 参数名τ=28 o C 冷却水量(m3/h )τ=27 o C 冷却水量(m3/h)主要尺寸(mm)风量风机直径电机功率重量(t)进水压力噪声dB(A)当量直径Δt=10 o CΔt=20 o CΔt=25 o CΔt=10 o CΔt=20 o CΔt=25 o C总高度宽度B(m3/h)(mm)(kw)自重运转重10 4 PaDmDm(m)GFNL-757563.965.886.373.671.8383026006800018003.0/1.51.4711.946.259.03.02GFNDP-7543901.8363.04GFNGP-7546902.1255.41GFNL-10010089.287.711598.195.7405030008800021004.0/2.02.042.686.360.53.47GFNDP-10046702.3043.89GFNGP-10049702.7297.08GFNL-150150137.4136.2172.2150.2147.74840360012100028005.5/2.72.6353.526.562.04.15GFNDP-15054603.0185.26GFNGP-15057603.74410.04GFNL-200200182.8181.3229.1199.8196.55010430016100034007.5/3.73.574.765.862.04.94GFNDP-20056904.1147.24GFNGP-20059904.85413.66GFNL-250250228.2226.3286249.4245.353004800201000380011/5.54.3355.796.062.55.51GFNDP-25060405.0158.9GFNGP-25063405.6716.67GFNL-300300273.6271.3342.9299.1294.159005300241000380011/5.55.447.236.462.56.08GFNDP-30067006.27311.02GFNGP-30070007.17420.5GFNL-400400364.4361.4456.7398.3391.861406000321000420015/7.56.9879.336.562.56.88GFNDP-40069808.05814.2GFNGP-40072809.05326.16GFNL-500500455.2454.5570.5497.6489.4644068004010004200 9.01126.863.07.79GFNDP-500729010.3818.22GFNGP-500759011.5933.52GFNL-600600546541.5684.3596.9587.169507300481000470030/1510.4613.977.063.88.36GFNDP-600790012.0421.15GFNGP-600820013.3738.71GFNL-700700638632.779.6697.4685.971507800560000470030/1512.6716.847.064.68.93GFNDP-700810014.4725.05GFNGP-700840015.9345.02说明：1表中所列为湿球温度τ=28 o C，τ=27 o C工况下；Δt=10 o C的t1=42 o C,t2=32 o C;Δt=20 o C时t1=54 o C,t2=34 o C;Δt=25 o C时t1=60 o C,t2=35 o C的冷却水量2 表中噪声值为夜间电机低速运转，并设有滴水吸声垫的数值，不设滴水吸声垫将比表中数值高5dB(A)