DG锅炉给水泵使用说明书解读.docx

1、DG锅炉给水泵使用说明书解读DG型卧式多级锅炉给水泵产品用途：本泵标准采用JB/T6435.2-92，GB5659-85多级离心泵技术条件。DG型卧式多级锅炉给水泵是我厂根据工业锅炉给排水有关规范开发的新产品。由于采用了国家推荐使用的高效节能产品的水力模型，因此DG型泵效率高、性能范围广、更好地满足使用要求。用于替代老型号GC型离心泵，在结构上采用了卧式、多级泵分段形式，因而运转安全、平稳、噪音低、寿命长、安装维修方便。此型泵特别适用于工业锅炉供排水、冷却水输送等。也可以通过改变材质、密封形式和增加冷却系统用于输送热水、油品、腐蚀介质等，广泛适用于石油化工、热水循环、环保产业、纯净水输送等行业

2、。输送介质温度为：-20C150C。允许进口压力为0.6MPa。参数范围：流量：4750m3/h扬程：841536m（扬程由泵的级数决定并通过切割叶轮直径进行调节）产品特点：1、水力设计：采用先进的设计理论进行低比转数水力模型优化设计，叶轮流道采用特殊的工艺手段，使其流道表面光洁，减少损失，提高效率。2、结构：在结构上采用卧式、多级分段形式，因而运转安全、平稳、噪音低、寿命长、安装维修方便。3、泵效率高，性能范围厂，更好地满足使用要求。结构：泵壳体部分主要由轴承体、吸入段、中段、吐出段、导叶等用拉杆螺栓联接成整体。转子部分主要由轴及安装在轴上的叶轮、轴套、平衡盘等零件组成。轴上零件用平键和轴套

3、螺母紧固使之与轴成为一体。整个转子由两端轴承支承在泵壳体上，转子部分中叶轮个数是根据泵的级数而定。本型泵轴承部分采用滚动轴承，部分采用滑动轴承，均不承受轴向力，泵轴向力由平衡盘承受，泵在运行中允许转子部分在泵壳体中轴向游动。轴承采用32号轴承油（汽轮机油）或性能类似的其它油品润滑，以获得更好的润滑性能及承受更高的温度。泵的吸入段、中段、吐出段之间密封均采用二硫化钼润滑密封，转子部分与固定部分之间靠密封环、导叶套、填料等密封，当密封环和导叶套的磨损程度己影响泵的工作和性能时应予及时更换。泵采用中心支撑，填料函部位设有水冷腔。轴承体内设水冷室，外表带散热片，具有很好的冷却保护，中段壳体外设有一层保

4、护罩，以防在抽送高温介质时液体从壳体接合面之间溅出。本型泵采用软填料密封，也可以采用机械密封。填料及机械密封的松紧程度必须适当。从传动端看，泵为顺时针方向旋转。型号说明：例1：DG25-505DG卧式多级锅炉给水泵 25泵的流量（m3/h）50泵的单级扬程（米）5泵的级数（叶轮个数）D G型 泵 材 质 选 择 表材 料 类 别使 用 温 度-20C+80C-20C+150C-20C+150C吸入段HT200ZG230-450ZG1Cr13中 段HT200ZG230-450ZG1Cr13吐出段HT200ZG230-450ZG1Cr13叶 轮HT200或CuZG230-450或CuZG1Cr13

5、或Cu导 叶HT200ZG230-450ZG1Cr13轴45或40Cr35CrMo3Cr13填料轴套HT200453Cr13机械密封轴套25 HT250453Cr13泵体密封环HT25040Cr3Cr13叶轮密封环HT25040Cr3Cr13平衡板ZQAl9-4453Cr13平衡盘45 HT25040Cr3Cr13除以上三类材质外,用户采用其它耐酸、耐碱材质，需与厂方洽商。DG型卧式多级锅炉给水泵结构图（1）DG型卧式多级锅炉给水泵结构图（1）泵型号DG6-35、DG8-35、DG10-40、DG12-50、DG12-80、DG25-50、DG46-50、DG85-45、DG155-30、DG

6、280-43、DG280-65、DG360-40、DG450-60、DG600-60、DG650-70DG型卧式多级锅炉给水泵结构图（2）DG型卧式多级锅炉给水泵结构图（2）泵型号DG25-80、DG45-80、DG45-120、DG65-120、DG80-120、DG85-67、DG85-80、DG120-120、DG150-100、DG155-67、DG160-120DG200-100、DG280-100、DG450-100、DG600-120、DG多级锅炉给水泵单级性能曲线（1） DG多级锅炉给水泵单级性能曲线（2） DG多级锅炉给水泵单级性能曲线（3） DG多级锅炉给水泵单级性能曲线（

7、4） DG多级锅炉给水泵单级性能曲线（5） DG多级锅炉给水泵单级性能曲线（6） DG多级锅炉给水泵单级性能曲线（7） DG多级锅炉给水泵单级性能曲线（8） DG多级锅炉给水泵性能表 参 数型 号流量Q扬程H转速n轴功率Pa配带电动机效率必需汽蚀余量叶轮直径泵口径功率型 号吸入吐出m3/hmrpmKWKW%mmmmmDG6-35346.2510105.9105101.429804.314.975.987.5Y132S2-226.83646.22.32.63.11604040DG6-35446.2510141.2140135.229805.746.627.9711Y160M1-226.83646

8、.22.32.63.11604040DG6-35546.2510176.517516929807.188.289.9715Y160M2-226.83646.22.32.63.11604040DG6-35646.2510211.8210202.829808.619.9311.9615Y160M2-226.83646.22.32.63.11604040DG6-35746.2510247.1245236.6298010.0511.5913.9618.5Y160L-226.83646.22.32.63.11604040DG6-35846.2510282.4280270.4298011.4913.521

9、5.9518.5Y160L-226.83646.22.32.63.11604040DG6-35946.2510317.7315304.2298012.9215.2117.9422Y180M-226.83646.22.32.63.11604040DG6-351046.2510353350338298014.3616.919.9422Y180M-226.83646.22.32.63.11604040DG6-351146.2510388.3385371.8298015.7918.5921.9330Y200L1-226.83646.22.32.63.11604040DG6-351246.2510423

10、.6420405.6298017.2320.2823.9230Y200L1-226.83646.22.32.63.11604040DG8-3535810109998529804.866.57.5Y132S2-23136363.63.74.61704040DG8-354581014613211429806.488.711Y160M1-23136363.63.74.61704040DG8-3555810182165142298081010.815Y160M2-23136363.63.74.61704040DG8-356581021819811729809.612.71315Y160M2-23136

11、363.63.74.61704040DG8-3575810255231199298011.21415.218.5Y160L-23136363.63.74.61704040DG8-3585810291264227298012.81617.822Y180M-23136363.63.74.61704040DG8-3595810328297256298014.419.119.522Y180M-23136363.63.74.61704040DG8-351058103643302842980162021.630Y200L1-23136363.63.74.61704040DG10-4036101212312

12、0115.529805.87.17.711Y160M1-234.546492.63.33.91704040DG10-4046101216416015429807.89.510.315Y160M2-234.546492.63.33.91704040DG10-40561012205200192.529809.711.812.818.5Y160L-234.546492.63.33.91704040DG10-40661012246240231298011.714.215.418.5Y160L-234.546492.63.33.91704040DG10-40761012287280269.5298013

13、.616.61822Y180M-234.546492.63.33.91704040DG10-40861012328320308298015.51920.622Y180M-234.546492.63.33.91704040DG10-40961012369360346.5298017.521.323.130Y200L1-234.546492.63.33.91704040DG10-401061012410400385298019.423.725.730Y200L1-234.546492.63.33.91704040DG12-503912.515165150135298010.112.7613.791

14、8.5Y160L-234.5404122.22.72005050DG12-504912.515220200180298013.517.0218.3822Y180M-234.5404122.22.72005050DG12-505912.515275250225298016.8521.322.9830Y200L1-234.5404122.22.72005050DG12-506912.515330300270298020.225.527.5730Y200L2-234.5404122.22.72005050DG12-507912.515385350315298023.629.832.1737Y200L

15、2-234.5404122.22.72005050DG12-508912.515440400360298026.9634.0436.7745Y225M-234.5404122.22.72005050DG12-509912.515495450405298030.0338.341.445Y250M-234.5404122.22.72005050DG12-5010912.515550500450298033.742.645.9655Y250M-234.5404122.22.72005050DG12-5011912.515605350495298037.074850.5555Y250M-234.540

16、4122.22.72005050DG12-5012912.515660600540298040.44515075Y280S-234.5404122.22.72005050*DG12-8057.512.515410400390298041.845.451.455Y250M-22030312.9345050*DG12-8067.512.515492480468298050.254.561.775Y280S-22030312.9345050*DG12-8077.512.515574560546298058.663.671.990Y280M-22030312.9345050*DG12-8087.512

17、.51565664062429806772.682.290Y280M-22030312.9345050*DG12-8097.512.515738720702298075.481.792.5110Y315S-22030312.9345050*DG12-80107.512.515820800785298083.790.8102.8110Y315S-22030312.9345050*DG12-80117.512.515902880858298092.199.8113132Y315M-22030312.9345050*DG12-80127.512.5159849609362980100.5108.41

18、23.3132Y315M-22030312.9345050DG25-503152528154.5150144298014.318.920.330Y200L1-24454542.42.72.81968080DG25-504 152528206200192298019.125.227.137Y200L2-24454542.42.72.81968080DG25-505152528257.5250240298023.931.533.937Y200L2-24454542.42.72.81968080DG25-506152528309300288298028.637.840.745Y225M-244545

19、42.42.72.81968080DG25-507152528360.5350336298033.444.147.555Y250M-24454542.42.72.81968080DG25-508152528412400384298038.250.454.275Y280S-24454542.42.72.81968080DG25-509152528463.545043229804356.76175Y280S-24454542.42.72.81968080DG25-5010152528515500480298047.76367.875Y280S-24454542.42.72.81968080DG25

20、-5011152528566550480298052.569.374.690Y280M-24454542.42.72.81968080DG25-5012152528618600576298057.375.681.4110Y315S-24454542.42.72.81968080DG25-805152530433400390298055.460.572.890Y280M-23245443.23.555050DG25-806152530520480470298066.472.687.3110Y315S-23245443.23.555050DG25-807152530607560546298077.

21、584.7101.8132Y315M-23245443.23.555050DG25-808152530693640624298088.596.8116.4132Y315M-23245443.23.555050DG25-809152530780720707298099.6108.9130.9160Y315L1-23245443.23.555050DG25-80101525308668007802980110.9121145.4160Y315L1-23245443.23.555050DG25-80111525309538808582980121.9133.1160185Y315M1-2324544

22、3.23.555050DG25-801215253010409609362980132.6145.2170.5185Y315M1-23245443.23.555050DG45-805364562418.3400340.8298082.189.2102.8110Y315S-25055563.94.05.52608080DG45-806364562502480409298098.4107123.3132Y315M1-25055563.94.05.52608080DG45-807364562585.6560477.22980114.8124.8143.9160Y315L1-25055563.94.05.52608080DG45-80836