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r 4N5*2A长沙冷凝泵 r
rr (长沙东方工业泵厂生产,销售热线:189 7513 0078 )r
rr 4N5*2A长沙冷凝泵的抽起原理 冷凝泵在显示生活中的使用现在已经是普及再用的,但是针对冷凝泵的原理,很少会有人知道,话说,各行各业都是专家。今天我们了解一下冷凝泵的抽气原理。 在低温泵内设有由液氦或制冷机冷却到极低温度的冷板。它使气体凝结,并保持凝结物的蒸汽压力低于泵的极限压力,从而达到抽气作用。低温抽气的主要作用是低温冷凝、低温吸附和低温捕集。①低温冷凝:气体分子冷凝在冷板表面上或冷凝在已冷凝的气体层上,其平衡压力基本上等于冷凝物的蒸气压。抽空气时,冷板温度必须低于25K;抽氢时,冷板温度更低。低温冷凝抽气冷凝层厚度可达10毫米左右。②低温吸附:气体分子以一个单分子层厚(10-8厘米数量级)被吸附到涂在冷板上的吸附剂表面上。吸附的平衡压力比相同温度下的蒸气压力低得多。如在20K时氢的蒸气压力等于大气压力,用20K的活性炭吸氢时吸附平衡压力则低于10-8 r
rr 帕。这样就可能在较高温度下通过低温吸附来进行抽气。③低温捕集:在抽气温度下不能冷凝的气体分子,被不断增长的可冷凝气体层埋葬和吸附。一般说来,泵的极限压力就是冷板温度下的被冷凝气体的蒸气压力。温度为120K时,水的蒸气压已低于10-8帕。温度为20K时,除氦、氖和氢外,其他气体的蒸气压也低于10-8帕。但由于被抽容器和低温冷板的温度不同,泵的极限压力高于冷凝物的蒸气压。对于室温下的容器,低温板为20K时,泵的极限压力约为冷凝物蒸气压力的4倍。 r
rr 对于冷凝泵的主要核心原理介绍,大家是不是以后对于冷凝泵出现小问题时,及时维护呢?更多文章来源于 r
rr 该型泵,系单级单吸悬臂式离心冷凝泵。GN、GNL型泵,系两级单吸离心式冷凝泵,适用于电厂,用来抽送冷凝器中的凝结水和750~3000kW汽轮发电机组抽送凝结水或物理、化学性质类似于水的其他液体之用。液体温度不超过80℃。泵进口压力不高于0.6MPa。 r
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rr 型号r | rr 流量r | rr 扬程r | rr 转速r | rr 轴功率r | rr 配套电机r | rr 效率r | rr 允许汽蚀余量r | rr 叶轮直径r | rr 泵重r | rr 泵重r | r|||
r Qr | rr Hr | rr nr | rr Par | rr 功率r | rr 型号r | rr ηr | rr 吸入r | rr 吐出r | r|||||
r m3/hr | rr L/sr | rr mr | rr r/minr | rr kWr | rr kWr | rr %r | rr mr | rr mmr | rr mmr | rr mmr | rr Kgr | r||
r 2.5N3×2r | rr 8r | rr 2.22r | rr 52.50r | rr 2,950.00r | rr 3.05r | rr 5.50r | rr Y132S1-2r | rr 37.50r | rr 1.90r | rr 148.00r | rr 65.00r | rr 50.00r | rr 50.00r | r
r 2.5N3×2r | rr 10r | rr 2.78r | rr 51.50r | rr 2,950.00r | rr 3.42r | rr 5.50r | rr Y132S1-2r | rr 41.00r | rr 2.00r | rr 148.00r | rr 65.00r | rr 50.00r | rr 50.00r | r
r 2.5N3×2r | rr 12r | rr 3.33r | rr 50.50r | rr 2,950.00r | rr 3.74r | rr 5.50r | rr Y132S1-2r | rr 44.00r | rr 2.20r | rr 148.00r | rr 65.00r | rr 50.00r | rr 50.00r | r
r 3N6r | rr 16.5r | rr 4.80r | rr 62.00r | rr 2,950.00r | rr 6.65r | rr 11.00r | rr Y160M1-2r | rr 44.00r | rr 1.50r | rr 215.00r | rr 80.00r | rr 50.00r | rr 80.00r | r
r 3N6r | rr 22r | rr 6.10r | rr 61.00r | rr 2,950.00r | rr 7.40r | rr 11.00r | rr Y160M1-2r | rr 49.00r | rr 1.70r | rr 215.00r | rr 80.00r | rr 50.00r | rr 80.00r | r
r 3N6r | rr 30r | rr 8.30r | rr 58.00r | rr 2,950.00r | rr 8.80r | rr 11.00r | rr Y160M1-2r | rr 54.00r | rr 1.90r | rr 215.00r | rr 80.00r | rr 50.00r | rr 80.00r | r
r 3N6Gr | rr 16.5r | rr 4.85r | rr 68.00r | rr 2,950.00r | rr 6.79r | rr 15.00r | rr Y160M2-2r | rr 45.00r | rr 0.75r | rr 222.00r | rr 100.00r | rr 50.00r | rr 97.00r | r
r 3N6Gr | rr 22r | rr 6.10r | rr 67.00r | rr 2,950.00r | rr 8.03r | rr 15.00r | rr Y160M2-2r | rr 50.00r | rr 0.85r | rr 222.00r | rr 100.00r | rr 50.00r | rr 97.00r | r
r 3N6Gr | rr 30r | rr 8.30r | rr 64.00r | rr 2,950.00r | rr 9.51r | rr 15.00r | rr Y160M2-2r | rr 55.00r | rr 1.05r | rr 222.00r | rr 100.00r | rr 50.00r | rr 97.00r | r
r 3N6×2r | rr 10r | rr 5.00r | rr 131.00r | rr 2,950.00r | rr 15.70r | rr 22.00r | rr Y180M-2r | rr 41.00r | rr 1.75r | rr 225.00r | rr 80.00r | rr 50.00r | rr 100.00r | r
r 3N6×2r | rr 26r | rr 7.20r | rr 128.00r | rr 2,950.00r | rr 17.80r | rr 22.00r | rr Y180M-2r | rr 51.00r | rr 2.10r | rr 225.00r | rr 80.00r | rr 50.00r | rr 100.00r | r
r 3N6×2r | rr 34r | rr 9.40r | rr 120.00r | rr 2,950.00r | rr 19.60r | rr 22.00r | rr Y180M-2r | rr 56.80r | rr 2.40r | rr 225.00r | rr 80.00r | rr 50.00r | rr 100.00r | r
r 3N6×2Ar | rr 18r | rr 5.00r | rr 108.00r | rr 2,950.00r | rr 12.90r | rr 18.50r | rr Y160L-2r | rr 41.00r | rr 0.80r | rr 215.00r | rr 80.00r | rr 50.00r | rr 100.00r | r
r 3N6×2Ar | rr 26r | rr 7.20r | rr 105.00r | rr 2,950.00r | rr 14.60r | rr 18.50r | rr Y160L-2r | rr 51.00r | rr 0.95r | rr 215.00r | rr 80.00r | rr 50.00r | rr 100.00r | r
r 3N6×2Ar | rr 34r | rr 9.40r | rr 101.00r | rr 2,950.00r | rr 16.70r | rr 18.50r | rr Y160L-2r | rr 56.00r | rr 1.15r | rr 215.00r | rr 80.00r | rr 50.00r | rr 100.00r | r
r 4N6r | rr 30r | rr 8.33r | rr 63.50r | rr 2,950.00r | rr 11.00r | rr 22.00r | rr Y180M-2r | rr 47.00r | rr 1.40r | rr 225.00r | rr 100.00r | rr 80.00r | rr 94.00r | r
r 4N6r | rr 40r | rr 11.10r | rr 62.00r | rr 2,950.00r | rr 12.70r | rr 22.00r | rr Y180M-2r | rr 53.00r | rr 1.60r | rr 225.00r | rr 100.00r | rr 80.00r | rr 94.00r | r
r 4N6r | rr 50r | rr 13.90r | rr 59.50r | rr 2,950.00r | rr 14.10r | rr 22.00r | rr Y180M-2r | rr 57.50r | rr 1.80r | rr 225.00r | rr 100.00r | rr 80.00r | rr 94.00r | r
r 4N6Ar | rr 30r | rr 8.33r | rr 40.00r | rr 2,950.00r | rr 6.30r | rr 11.00r | rr Y160M1-2r | rr 49.00r | rr 1.60r | rr 175.00r | rr 100.00r | rr 80.00r | rr 92.00r | r
r 4N6Ar | rr 40r | rr 11.10r | rr 38.00r | rr 2,950.00r | rr 7.30r | rr 11.00r | rr Y160M1-2r | rr 55.50r | rr 1.80r | rr 175.00r | rr 100.00r | rr 80.00r | rr 92.00r | r
r 4N6Ar | rr 50r | rr 13.90r | rr 37.70r | rr 2,950.00r | rr 8.25r | rr 11.00r | rr Y160M1-2r | rr 58.50r | rr 2.00r | rr 175.00r | rr 100.00r | rr 80.00r | rr 92.00r | r
r 4N6Gr | rr 30r | rr 8.33r | rr 78.00r | rr 2,950.00r | rr 13.30r | rr 22.00r | rr Y200L1-2r | rr 48.00r | rr 0.85r | rr 230.00r | rr 150.00r | rr 80.00r | rr 105.00r | r
r 4N6Gr | rr 40r | rr 11.10r | rr 76.00r | rr 2,950.00r | rr 15.30r | rr 22.00r | rr Y200L1-2r | rr 54.00r | rr 0.95r | rr 230.00r | rr 150.00r | rr 80.00r | rr 105.00r | r
r 4N6Gr | rr 50r | rr 13.90r | rr 72.00r | rr 2,950.00r | rr 16.90r | rr 22.00r | rr Y200L1-2r | rr 58.00r | rr 1.00r | rr 230.00r | rr 150.00r | rr 80.00r | rr 105.00r | r
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r 流量Q 11~36m3/h r
rr 扬程H 12~62m r
rr 型号说明: r
rr 4N6A r
rr 4-吸入管直径除以25的余数 r
rr N-冷凝水泵 r
rr 6-设计单级扬程被10除后取整数 r
rr A-叶轮经过切割(外径变小)
r100NB—45
r100—泵进口口径为mm
rN—冷凝水泵
rB—悬架式
r45—泵的设计扬程m
rGNL3—A GNL3—B
rG—高吸程
rN—冷凝水泵
rL—立式
r3—泵进口口径为3寸
rA、B—两种不同叶轮外径 r
r 结构型式:NB、NBA、GN、N型为卧式,GNL为立式。采用滚动轴承,润滑脂润滑,轴封为填料密封,也可用机械密封。 r
rr 旋转方向:从电机端看,泵为逆时针方向旋转。 r
rr 主要零件材质:泵的过流部件泵体、泵盖、密封环、轴套的材质为铸铁,N型冷凝泵叶轮为硅黄铜,诱导轮为铝铁青铜。轴均为优质碳素钢。 r
rr 成套范围:成套供应泵、电机、联轴器、止回阀、闸阀。 r
rr 订货时请注明主要零件材质,若对泵、电机有特殊要求,可与本公司协商有关技术要求。 r
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