时间：2021-04-16 11:29:32 点击：51
中国总代理（福斯FLOWSERVE集团） 产地中国上海,德国品牌,美国福斯FLOWSERVE集团总公司全资收购。 Liquid ring vacuum pumps 液环式真空 in close coupled design 机泵同轴设计 LEMC 25, 50, 90, 125, 150, 250 PRESSURE RANGE: 入口压力范围： 33 – 1013 mbar SUCTION VOLUME: 入口流量： 24 - 280 m³/h CONSTRUCTION TYPE 结构型式 SIHI liquid ring vacuum pumps are displacement pumps of uncomplicated and robust construction with the following particular features: SIHI 液环式真空泵是结构简单使用可靠的容积变化式泵,具有如下特点： nearly isothermal compression 几乎等温压缩, oil-free, as no lubrication in the working chamber therefore non-polluting 在工作腔内无需润滑,因而无油,纯净 Capable of handling of nearly all gases and vapours 可处理几乎所有的气体和蒸汽 small quantities of entrained liquid can be handled 可处理少量的夹带液体 easy maintenance and reliable operation 易维护,高可靠性 low noise and nearly free from vibration 低噪音,几乎无振动 wide choice of materials, therefore alicable nearly everywhere 广泛的材质选择,基本上可用于所有场合 shaft not in contact with the medium 轴不接触介质 protection against cavitation as standard 气蚀保护作为标准配置 incorporated dirt drain 一体式排污 no metallic contact of the rotating parts 旋转部件没有金属接触 SIHI liquid ring vacuum pumps LEMC are single-stage SIHI LEMC 系列液环式真空泵是单级泵。 APPLICATION 应用 Handling and exhausting of dry and humid gases; entrained liquid can be handled during normal duty. The pumps are applied in all fields where a pressure of 33 to 900 mbar must be generated 干气和湿气的处理和抽除;正常条件下可处理夹带的液体. 此真空泵可 用于所有需要33 mbar到900 mbar的场合。 NOTE 泵运转期间需连续不断地补充工作液（通常为水）,以带走 气体压缩而产生的热量和补充部分随气体排出的工作液。此 部分工作液可在汽液分离器中与气体分开（请见样本附件部 分）,以重新利用。 泵可按需要配备一个连接,以保证在运转条件下连续地排放 被污染的工作液。 The direction of rotation is clockwise, when looking from the motor towards the pump. 从泵的驱动端看,泵的旋转方向为顺时针。 2 GENERAL TECHNICAL DATA 常规技术数据 Pump type 泵型号 Unit 单位 LEMC25 LEMC50 LEMC90 LEMC125 LEMC150 LEMC250 Synchronous speed 同步转速 50 Hz rpm 3000 1500 Max. compression over atmospheric pressure 较大背压 bar 0,3 Max. admissible pressure difference 允许较大压差 bar 1,1 Test pressure above atmospheric pressure 水压试验（表压） bar 1 1 3 3 3 3 Moment of inertia of the rotating pump parts and water filling 满水时转动部件的惯性力矩 kg . m² 0,003 0,0095 0,035 0,053 0,069 0,097 Sound pressure level at a suction pressure of 80 mbar 在80mbar 入口压力下的噪音 dB (A) 68 69 65 Dry gas Max. gas temperature 干气 °C 200 较大吸气温度 Saturated gas 饱和气 °C 100 Service liquid 工作液 max. recommended temperature for water as working liquid 工作液为水的较大推荐温度 °C 40 max. admissible temperature for other suitable working liquids 对适合的工作液较大允许温度 °C 80 max. kinematic viscosity 较大动粘度 mm²/s 4 max. density 较大密度 kg/m³ 1200 volume up to shaft level 到轴中心线的容积 liter 0.3 0.4 2.4 2.8 3.2 4.0 The combination of several limiting values is not admissible. 不允许将几种较限值同时选择 Material design 材料设计 Item 0K 0E 位号 Component 零件 LEMC 25/50 LEMC 90/125/150 LEMC 250 10.10 Casing 泵盖 10.90 Central body 中间体 13.70 Guide disc 导流盘 0.6025 23.50 Vane wheel impeller 叶轮 1.4301 1.4408 XBPFF GBVGG EBPFF Ceramic 陶瓷 Cr-Ni-St 铬钢 Cr-Ni-St 铬钢 Carbon 石墨 Carbon 石墨 Carbon 石墨 Perbunan 丁苯橡胶 Viton 氟橡胶 Perbunan 丁苯橡胶 Mechanical seal Material option 1 机械密封 材料选择1 Cr-Ni-St 铬钢 Cr-Ni-Mo-St 铬镍钼钢 Cr-Ni-St 铬钢 GBMGG Cr-Ni-Mo-St 铬镍钼钢 Carbon 石墨 Viton PTFE encapsulated 氟橡胶外包裹聚四氟乙烯 43.30 Mechanical seal Material option 2 机械密封 材料选择2 Not available 不提供 Cr-Ni-Mo-St 铬镍钼钢 PTFE 75.40 Valve balls 阀球 聚四氟乙烯