不锈钢耐腐蚀离心泵型号及参数

不锈钢耐腐蚀离心泵型号及参数 【SFB型不锈钢耐腐蚀离心泵】产品: 【SFB型不锈钢耐腐蚀离心泵】产品特点: SFB系列不锈钢耐腐蚀离心泵是自行研制的不锈钢耐腐蚀离心泵，两面三刀系列泵的叶轮有的采用半开式结构形式，有的则采用闭式结构形式，另外，泵与电机的联接方式又有直联系和带轴承托架式两种，所有泵的轴封均采用目前西德较先进的悬臂式技术的机械密封，由于我厂产品集优良结构、性能、造形于一身，兼过流零部件及连接架采用优质不锈钢材料制造，所以，两系列产品具有耐腐蚀性能可靠，使用、维护方便、结构紧凑、能耗低、密封性能好等一系列优点。 【SFB型不锈钢耐腐蚀离心泵】使用材质: 1、过流零件及连接架:1Cr18Ni9Ti不锈钢 2、机械密封:静环:陶瓷(SiC)。动环石墨浸渍呋喃树脂。 3、橡胶结构件:氟橡胶。1Cr18Ni9Ti不锈钢。 4、如输送介质或使用条件与本泵配置材料不相配时，可另议配置其它材质。 如:过流零件配316，轴封可配聚四氟乙烯。或其它种类的动静环等。 【SFB型不锈钢耐腐蚀离心泵】主要用途: SFB系列泵可输送温度不高于90?(直联式)或不高于105?(带轴承托架式)，含或不含)有细小软颗粒或纤维质，带腐蚀性或有卫生 要求 对教师党员的评价套管和固井爆破片与爆破装置仓库管理基本要求三甲医院都需要复审吗 的液体，SFBX系列泵还具有自吸性能，两系列泵广泛适用于食口、饮料、医药、污水处理、化工、电镀、漂染、精细化工等行业使用。 n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 【SFB型不锈钢耐腐蚀离心泵】性能参数: SFB直联、半开式叶轮离心泵系列转速n=2800转、分 口径(mm) 汽 型号(三相/380伏型号(单相/220伏电机功效率蚀扬程H(m) 流量Q (m3/h) /50赫) /50赫) 率(kw) 余(%) 进口 出口 量 H 11 10 8 6 4 3 25SFB-8 25SFB-8D 0.25 25 20 43 4.5 Q 0.8 2.5 4 5.2 6.8 7.5 H 15 14 13 12 10 8 6 5 40SFB-13 40SFB-13D 0.55 40 25 45 3.5 Q 3.5 5 6 7.5 9.5 11 12.5 13 H 22 21 20 18 16 14 12 10 50SFB-18 50SFB-18D 1.5 50 40 52 3.5 Q 3 5.5 9 13 16 18 20 21 H 27 26 24 22 20 18 16 14 12 50SFB-22 50SFB-22D 2.2 50 40 55 3.5 Q 7 10.5 16 19 22 23.8 26 27 28.5 H 30 28 26 25 24 22 20 18 16 50SFB-25 3 50 40 56 3.5 Q 12.5 18.5 22 23 24.5 26 27.5 29.5 31 SFBX 直联、半开式叶轮自吸泵系列 转速n=2800转、分 口径(mm) 型号(三相/380伏型号(单相/220伏电机功效率汽蚀扬程H(m) 流量Q (m3/h) /50赫) /50赫) 率(kw) 余量 (%) 进口 出口 H 9 8 7 6 5 4 3 25SFBX-8 25SFBX-8D 0.25 25 25 40 5.5 Q 2.3 3 3.5 4.3 4.8 5.2 5.5 H 16 15 14 13 12 10 8 6 4 25SFBX-13 25SFBX-13D 0.55 25 25 40 4 Q 3 4 4.8 6 6.5 7.5 8.5 9.5 10 H 21 20 19 18 16 14 12 10 8 40SFBX-18 40SFBX-18D 1.5 40 40 49 4 Q 6 7 8.5 10 12 14 15.5 17.3 18.5 H 28 26 25 24 22 20 18 16 14 50SFBX-22 3 50 50 50 4 Q 8.5 11.5 13.5 14.5 16.5 19 20.5 22 23.8 【SFB型不锈钢耐腐蚀离心泵】安装尺寸图: n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 伽利略Galileo泵-欧洲品质 外形及安装尺寸 型号/尺寸 L1 L2 L3 L4 L5 H1 H2 G1 G2 d d1 D1a D1b D1c D1d d2 D2a D2b D2c D2d G1? G3/4? 25SFB-8 34 128 80 308 100 63 88 8 14 100 75 60 25 11 90 65 50 20 G3/4? G1? 40SFB-13 41 151 90 331 112 71 110 7 14 130 100 80 40 11 100 75 60 25 50SFB-18 60 195 100 399 140 90 123 10 14 140 110 90 50 14 130 100 80 40 50SFB-22 72 216 125 445 140 90 130 10 14 140 110 90 50 14 130 100 80 40 50SFB-25 72 216 140 473 160 100 130 12 14 140 110 90 50 14 130 100 80 40 25SFBX-8 95 204 80 384 100 133 109 27 27 8 25SFBX-13 99 227 90 407 112 161 108 27 27 7 40SFBX-18 107 260 100 464 140 193 122 38 38 10 50SFBX-22 118 283 140 540 160 220 133 50 50 10 声明:由于产品一直在更新，本文中所有文字、数据、图片均只适用于参考 怎样选择水泵, 建议从五个方面加以考虑，既液体输送量、扬程、液体性质、管路布置以及操作运转条件等。 1、流量是选泵的重要性能数据之一，它直接关系到整个装置的的生产能力和输送n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 能力。如设计工艺能算出泵正常、最小、最大三种流量。选择泵时，以最大流量为依据，兼顾正常流量，在没有最大流量时，通常可取正常流量的1.1倍作为最大流量。 2、扬程是选泵的又一重要性能数据，一般要用放大5%—10%余量后扬程来选型。 3、液体性质，包括液体介质名称，物理性质，化学性质和其它性质，物理性质有温度c、密度d、粘度u，介质中固体颗粒直径和气体的含量等，这涉及到系统的扬程，有效气蚀余量计算和合适泵的类型:化学性质，主要指液体介质的化学腐蚀性和毒性，是选用泵材料和选用那一种轴封型式的重要依据。 4、管路布置条件指的是送液高度送液距离送液走向，吸如侧最低液面，排出侧最高液面等一些数据和管道规格及其长度、材料、管件规格、数量等，以便进行系梳扬程计算和汽蚀余量的校核。 5、操作条件的内容很多，如液体的操作T饱和蒸汽力P、吸入侧压力PS(绝对)、排出侧容器压力PZ、海拔高度、环境温度操作是间隙的还是连续的、泵的位置是固定的还是可移的。 选购方法 水泵的流量，即出水量，一般不宜选得过大，否则会增加购买水泵的费用。应按需选用，如用户家庭使用的自吸式水泵，流量应尽量选小一些的;如用户灌溉用的潜水泵，就可适当选择流量大一些的。 1)要因地制宜选购水泵。例如:农用水泵有3种类型，即离心泵、轴流泵水泵和混流泵。离心泵扬程较高，但出水量不大，适用于山区和井灌区;轴流泵出水量较大，但扬程不太高，适用于平原地区使用;混流泵的出水量和扬程介于离心泵和轴流泵之间，适用于平原和丘陵地区使用。用户要根据地的地况、水源和提水高度进行选购。 2)要适当超标选水泵。确定水泵类型后，要考虑其经济性能，特别要注意水泵的扬程和流量及其配套动力的选择。必须注意，水泵标牌上注明的扬程(总扬程)与使用时的出水扬程(实际扬程)是有差别的，这是由于水流通过输水管和管路附近时会有一定的阻力n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 伽利略Galileo泵-欧洲品质 损失。所以，实际扬程一般要比总扬程低10%—20%，出水量也相应减少。因此，实际使用时，只能按标牌所注扬程和流量的80%,90%估算，水泵配套动力的选择，可按标牌上注明的功率选择，为了使水泵启动迅速和使用安，动力机的功率也可略大于水泵所需功率，一般高出10%左右为宜;如果已有动力，选购水泵时，则可按动力机的功率选购与之相配套的水泵。 3)要严格手续购水泵。 台数选择 1、对正常运转的泵，一般只用一台，因为一台大泵与并联工作的两台小泵相当，(指扬程、流量相同)，大泵效率高于小泵，故从节能角度讲宁可选一台大泵，而不用两台小泵，但遇有下列情况时，可考虑两台泵并联合作:流量很大，一台泵达不到此流量。 2、对于需要有50%的备用率大型泵，可改两台较小的泵工作，两台备用(共四台) 3、对某些大型泵，可选用70%流量要求的泵并联操作，不用备用泵，在一台泵检修时，另一台泵仍然承担 生产上70%的输送。 4、对需24小时连续不停运转的泵，应备用三台泵，一台运转，一台备用，一台维修。 安装方法 1. 在地理环境许可的条件下，水泵应尽量靠近水源，以减少吸水管的长度。 水泵安装处的地基应牢固，对固定式泵站应修专门的基础。 2.进水管路应密封可靠，必须有专用支撑，不可吊在水泵上。装有底阀的进水管，应尽量使底阀轴线与水平面垂直安装，其轴线与水平面的夹角不得小于45?。水源为渠道时，底阀应高于水底0.50米以上，且加网防止杂物进入泵内。 3. 机、泵底座应水平，与基础的联结应牢固。机、泵皮带传动时，皮带紧边在下，这样传动效率高，水泵叶轮转向应与箭头指示方向一致;采用联轴器传动时，机、泵必须同轴线。 n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 4. 水泵的安装位置应满足允许吸上真空高度的要求，基础必须水平、稳固，保证动力机械的旋转方向与水泵的旋转方向一致。 5. 若同一机房内有多台机组，机组与机组之间，机组与墙壁之间都应有800mm以上的距离。 6. 水泵吸水管必须密封良好，且尽量减少弯头和闸阀，加注引水时应排尽空气，运行时管内不应积聚空气，要求吸水管微呈上斜与水泵进水口联接，进水口应有一定的淹没深度。 注意事项 软件开发合同注意事项软件销售合同注意事项电梯维保合同注意事项软件销售合同注意事项员工离职注意事项 1、如果水泵有任何小的故障切记不能让其工作。如果水泵轴的填料完磨损后要及时添加，如果继续使用水泵会漏气。这样带来的直接影响是电机耗能增加进而会损坏叶轮。 2、如果水泵在使用的过程中发生强烈的震动这时一定要停下来检查下是什么原因，否则同样会对水泵造成损坏。 3、当水泵底阀漏水时，有些人会用干土填入到水泵进口管里，用水冲到底阀处，这样的做法实在不可取。因为当把干土放入到进水管里当水泵开始工作时这些干土就会进入泵内，这时就会损坏水泵叶轮和轴承，这样做缩短了水泵使用寿命。当底阀漏水时一定要拿去维修，如果很严重那就需要更换新的。 4、水泵使用后一定要注意保养，比如说当水泵用完后要把水泵里的水放干净，最好是能把水管卸下来然后用清水冲洗。 5、水泵上的胶带也要卸下来，然后用水冲洗干净后在光照处晾干，不要把胶带放在阴暗潮湿的地方。水泵的胶带一定不能沾上油污，更不要在胶带上涂一些带粘性的东西。 6、要仔细检查叶轮上是否有裂痕，叶轮固定在轴承上是否有松动，如果有出现裂缝和松动的现象要及时维修，如果水泵叶轮上面有泥土的也要清理干净。 无法启动 首先应检查电源供电情况:接头连接是否牢靠;开关接触是否紧密;保险丝是否熔断;三相供电的是否缺相等。如有断路、接触不良、保险丝熔断、缺相，应查明原因并及时n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 伽利略Galileo泵-欧洲品质 进行修复。其次检查是否是水泵自身的机械故障，常见的原因有:填料太紧或叶轮与泵体之间被杂物卡住而堵塞;泵轴、轴承、减漏环锈住;泵轴严重弯曲等。排除方法:放松填料，疏通引水槽;拆开泵体清除杂物、除锈;拆下泵轴校正或更换新的泵轴。 水泵发热 原因:轴承损坏;滚动轴承或托架盖间隙过小;泵轴弯曲或两轴不同心;胶带太紧;缺油或油质不好;叶轮上的平衡孔堵塞，叶轮失去平衡，增大了向一边的推力。排除方法:更换轴承;拆除后盖，在托架与轴承座之间加装垫片;调查泵轴或调整两轴的同心度;适当调松胶带紧度;加注干净的黄油，黄油占轴承内空隙的60%左右;清除平衡孔内的堵塞物。 水泵吸不上水 原因是泵体内有空气或进水管积气，或是底阀关闭不严灌引水不满、真空泵填料严重漏气，闸阀或拍门关闭不严。排除方法:先把水压上来，再将泵体注满水，然后开机。同时检查逆止阀是否严密，管路、接头有无漏气现象，如发现漏气，拆卸后在接头处涂上润滑油或调合漆，并拧紧螺丝。检查水泵轴的油封环，如磨损严重应更换新件。管路漏水或漏气。可能安装时螺帽拧得不紧。若渗漏不严重,可在漏气或漏水的地方涂抹水泥,或涂用沥青油拌和的水泥浆。临时性的修理可涂些湿泥或软肥皂。若在接头处漏水,则可用扳手拧紧螺帽,如漏水严重则必须重新拆装，更换有裂纹的管子;降低扬程，将水泵的管口压入水下0.5m。 剧烈震动 主要有以下几个原因:电动转子不平衡;联轴器结合不良;轴承磨损弯曲;转动部分的零件松动、破裂;管路支架不牢等原因。可分别采取调整、修理、加固、校直、更换等办法处理。 电动机过热 n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 原因有四。一是电源方面的原因:电压偏高或偏低，在特定负载下，若电压变动范围应在额定值的+10%至,5%之外会造成电动机过热;电源三相电压不对称，电源三相电电压相间不平衡度超过5%，会引绕组过热;缺相运行，经验表明农用电动机被烧毁85%以上是由于缺相运行造成的，应对电动机安装缺相保护装置。二是水泵方面的原因:选用动力不配套，小马拉大车，电动机长时间过载运行，使电动机温度过高;启动过于频繁、定额为短时或断续工作制的电动机连续工作。应限制启动次数，正确选用热保护，按电动机上标定的定额使用。三是电动机身的原因:接法错误，将?形误接成Y形，使电动机的温度迅速升高;定子绕组有相间短路、匝间短路或局部接地，轻时电动机局部过热，严重时绝缘烧坏;鼠笼转子断条或存在缺陷，电动机运行1至2小时，铁芯温度迅速上升;通风系统发生故障，应检查风扇是否损坏，旋转方向是否正确，通风孔道是否堵塞;轴承磨损、转子偏心扫膛使定转子铁心相擦发出金属撞击声，铁芯温度迅速上升，严重时电动机冒烟，甚至线圈烧毁。四是工作环境方面的原因:电动机绕组受潮或灰尘、油污等附着在绕组上，导致绝缘降低。应测量电动机的绝缘电阻并进行清扫、干燥处理;环境温度过高。当环境温度超过35?时，进风温度高，会使电动机的温度过高，应设法改善其工作环境。如搭棚遮阳等。 注意: 因电方面的原因发生故障，应请获得专业资格证 书 关于书的成语关于读书的排比句社区图书漂流公约怎么写关于读书的小报汉书pdf 的电工维修，一知半解的人不可盲目维修，防止人身伤害事故的发生。 首先看一下水泵此时运行的电流和平常运行时候的电流差别有多大。如果比平时运行时候小(基上就是平时电流的2\3)，那么就有叶轮磨损、泵头最上面的止逆阀堵塞等问题。如果和平时电流一样大，那么就是管垫漏水、管子漏水、泵体漏水等问题。如果比平时运行的时候电流大，那么基上可以确定是易损件磨损的问题。另外补充一点，电缆如果破损的话，水量跟平时是一样大，但是电流会变大。3相380V电机的电流一般是2.2A。以上原因只要是经常维修深井泵的修理人员就可以查出来。 汽蚀现象，水泵的汽蚀是由水的汽化引起的，所谓汽化就是水由液态转化为汽态的过程。水的汽化与温度和压力有一定的关系，在一定压力下，温度升高到一定数值时，水才开始汽化;如果在一定温度下，压力降低到一定数值时，水同样也会汽化，把这个压力称n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 伽利略Galileo泵-欧洲品质 为水在该温度下的汽化压力。如果在流动过程，某一局部地区的压力等于或低于与水温相对应的汽化压力时，水就在该处发生汽化。汽化发生后，就会形成许多蒸汽与气体混合的小汽泡。当汽泡随同水流从低压区流向高压区时，汽泡在高压的作用下破裂，高压水以极高的速度流向这些原汽泡占有的空间，形成一个冲击力。金属表面在水击压力作用下，形成疲劳而遭到严重破坏。因此把汽泡的形成、发展和破裂以致材料受到破坏的部过程，称为汽蚀现象。 效率下降原因 1、由于水流的冲刷，水泵流道内壁和叶轮过水面变得粗糙不平，水泵内流道的摩阻系数增大，再加上水在泵内的流速很大，水头损失增加。水力效率降低。 2、由于在泵前投加药物或水质等原因，使泵壳内严重积垢或腐蚀。泵壳内积垢严重的可以使泵壳壁厚增加2ram左右，而且水泵内壁形成垢瘤，使泵体容积缩小、抽水量减少、并且流道粗糙，水头损失增加。客积效率和水力效率都降低。 3、由于水泵加工工艺造成的铸造缺陷、汽蚀、磨蚀、腐蚀和化学浸蚀等原因造成泵流道内产生空洞或裂缝，水流动时产生旋涡而造成能量损失。水力效率降低。 4、叶轮表面的气蚀。由于叶片背水面运行时产生负压，当压力Pk 分析 定性数据统计分析pdf销售业绩分析模板建筑结构震害分析销售进度分析表京东商城竞争战略分析 水泵振动原因分析导致机组和泵房建筑物产生振动的原因较多，有些因素之间既有联系又相互作用，概括起来主要有以下四个方面的原因。 n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 电气方面 电机是机组的主要设备，电机内部磁力不平衡和其它电气系统的失调，常引起振动和噪音。如异步电动机在运行中，由定转子齿谐波磁通相互作用而产生的定转子间径向交变磁拉力，或大型同步电机在运行中，定转子磁力中心不一致或各个方向上气隙差超过允许偏差值等，都可能引起电机周期性振动并发出噪音。 机械方面 电机和水泵转动部件质量不平衡、粗制滥造、安装质量不良、机组轴线不对称、摆度超过允许值，零部件的机械强度和刚度较差、轴承和密封部件磨损破坏，以及水泵临界转速出现与机组固有频率一直引起的共振等，都会产生强烈的振动和噪音。 水力方面 水泵进口流速和压力分布不均匀，泵进出口工作液体的压力脉动、液体绕流、偏流和脱流，非定额工况以及各种原因引起的水泵汽蚀等，都是常见的引起泵机组振动的原因。水泵启动和停机、阀门启闭、工况改变以及事故紧急停机等动态过渡过程造成的输水管道内压力急剧变化和水锤作用等，也常常导致泵房和机组产生振动。 水工及其它方面 机组进水流道设计不合理或与机组不配套、水泵淹没深度不当，以及机组启动和停机顺序不合理等，都会使进水条件恶化，产生漩涡，诱发汽蚀或加重机组及泵房振动。采用破坏虹吸真空断流的机组在启动时，若驼峰段空气挟带困难，形成虹吸时间过长;拍门断流的机组拍门设计不合理，时开时闭，不断撞击拍门座;支撑水泵和电机的基础发生不均匀沉陷或基础的刚性较差等原因，也都会导致机组发生振动。同时，应根据当地的电源情况来决定用单相泵或三相泵。 噪音原因 水泵的噪音大可能有下面几个方面的 原因: (1)旋片对缸体的撞击，水泵残余容积和排气死隙中的压力油的发声; n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 伽利略Galileo泵-欧洲品质 (2)排气阀片对阀座和支持件的撞击; (3)箱体内的回声和气泡破裂声; (4)轴承噪音; (5)大量气、油冲击挡油板等引起的噪音; (6)其他。如传动引起的噪音，风冷水泵的风扇噪音等。 (7)电机噪音，这是至关重要的因素。 漏水故障 1操作人员给冷却水散热器内加入的冷却水是海水，造成柴油机内部水道及外接口损坏。所以，使用柴油机时一定要严格按柴油机的各项规定进行操作。 2操作人员给水散热器内加入的防冻腐蚀性较强，致使柴油机水道部件损坏。 3密封圈磨损或老化，导致密封面封不住，产生漏水。 故障排除 1拆卸柴油机中已损坏的部件，对水散热器及机体内部水道用淡水进行冲洗完毕后，更换已损坏的柴油机部件。 2经装配、调整、试机发现柴油机恢复正常，故障即被排除。 掺水污染 燃油掺水的方法有进气管喷水和乳化柴油等问题。 1、进气管喷水 进气管喷水的主要作用是吸热和稀释燃油密度。当少量水进入燃烧室并雾化良好时，由于水蒸气的“微爆”作用使油滴破碎成更小的油滴，因而促进了混合气的形成和燃烧。在燃烧过程中由于水的吸热作用可使最高燃烧温度降低，如水与油混合喷入可降低燃油密度，使最高燃烧温度进一步降低，因此NOx排放减少。需要注意的是冬季储水箱需防冻，并要求随负荷大小自动调节喷水量等。 n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 2、乳化柴油 在柴油中掺水，即乳化柴油，由于其“徽爆”作用，使其燃油雾化良I好，井促使燃烧室内的空气形成强烈紊流，燃油与空气的分布更加均匀，生成的炭烟减少。水蒸气的水煤气反应也使炭烟排放降低。另外，乳化柴油可降低最高燃烧温度，因此NOx生成量减少。 维修 方案 气瓶 现场处置方案 .pdf气瓶 现场处置方案 .doc见习基地管理方案.doc关于群访事件的化解方案建筑工地扬尘治理专项方案下载 水泵在长期运行过程中，常会出现水泵轴承架轴承室磨损、轴承位磨损、泵体裂纹破裂、水泵气蚀、冲刷磨损等。出现上述问题后，企业传统解决办法是补焊或刷镀后机加工修复，但两者均存在一定弊端:补焊高温产生的热应力无法完消除，易造成材质损伤，导致部件出现弯曲或断裂;而电刷镀受涂层厚度限制，容易剥落，且以上两种方法都是用金属修复金属，无法改变“硬对硬”的配合关系，在各力综合作用下，仍会造成再次磨损。当代西方国家针对以上问题多使用高分子复合材料的修复方法，其具有超强的粘着力，优异的抗压强度等综合性能。应用高分子材料修复，可免拆卸免机加工。既无补焊热应力影响，修复厚度也不受限制，同时产品所具有的金属材料不具备的退让性，可吸收设备的冲击震动，避免再次磨损的可能，并大大延长设备部件的使用寿命，为企业节省大量的停机时间，创造巨大的经济价值。 水泵转子在高转速下工作时，若其质量不均衡，转动时就会产生一个较大的离心力，造成水泵振动或损坏。转子的平衡是通过其上的各个部件(包括轴、叶轮、轴套、平衡盘等)的质量平衡来达到的，因此对新换装的叶轮都应进行静平衡校验工作。具体的方法是: (1)将叶轮装在假轴上，放到已调好水平的静平衡试验台上。试验台上有两条轨道，假轴可在其上自由滚动。 (2)在叶轮偏重的一侧做好标记。若叶轮质量不平衡，较重的一侧总是自动地转到下面。在偏重地方的对称位置(即较轻的一方)增加重块(用面粘或是用夹子增减铁片)，直至叶n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of 伽利略Galileo泵-欧洲品质 轮能在任意位置都可停住为止。 (3)称出加重块的质量。不是在叶轮较轻的一侧加重量，而是在较重侧通过减重量的方法来达到叶轮的平衡。减重时，可用铣床铣削或是用砂轮磨削(当去除量不大时)，但注意铣削或磨削的深度不得超过叶轮盖板厚度的1/3。经静平衡后的叶轮，静平衡允许偏差值不得超过叶轮外径值与0.025g/mm之积。例如，直径为200mm的叶轮，允许偏差为5g。 联轴器的拆装 (1)拆下联轴器时，不可直接用锤子敲击而应垫以铜棒，且应 而不能打联轴器外缘，因为此处极易被打坏。最理想的办法是用掳子拆卸联轴器。对于中小型水泵来说，因其配合过盈量很小，故联轴器很容易拿下来。对较大型的水泵，联轴器与轴配合有较大的过盈，所以拆卸时必须对联轴器进行加热。 (2)装配联轴器时，要注意键的序号(对具有两个以上键的联轴器来说)。若用铜棒敲击时，必须注意击打的部位。例如，敲打轴孔处端面时，容易引起轴孔缩小，以致轴穿不过去;敲打对轮外缘处，则易破坏端面的平直度，在以后用塞尺找正时将影响测量的准确度。对过盈量较大的联轴器，则应加热后再装。 (3)联轴器销子、螺帽、垫圈及胶垫等必须保证其各自的规格、大小一致，以免影响联轴器的动平衡。联轴器螺栓及对应的联轴器销孔上应做好相应的标记，以防错装。 (4)联轴器与轴的配合一般均采用过渡配合，既可能出现少量过盈，也可能出现少量间隙，对轮毂较长的联轴器，可采用较松的过渡配合，因其轴孔较长，由于表面加工粗糙不平，在组装后自然会产生部分过盈。如果发现联轴器与轴的配合过松，影响孔、轴的同心度时，则应进行补焊。在轴上打麻点或垫铜皮乃是权宜之计，不能作为理想的方法。 n the main terminal, and the telephone Office is responsible for providing the appropriate size adapter patch panels and electrical protection unit. (Shuttle bus) wiring (IDF) set up in the workshop on the second floor of the building, located in the District of weak electrical cabinets (well). Engine room placed inside the Cabinet, IDF placed a standard 40U cabinets for installation of network and wiring devices, management computer and telephone information. Cabinet distribution frame are made of Super five RJ45 patch panel horizontal twisted pair connections. Computer information management, admin area using the jumpers, which uses private RJ45-RJ45 soft jumpers for network devices with jumpers hopping between all switches, changes, expansion and maintenance were done quickly in the wiring closet. Twisted length Centre room is located on the second floor, outward radiation of each line (except some points may exceed) does not exceed 100 metres in length, all information for the various floors all rooms (distribution Cabinet) unified management. District workshop building distribution lines (IDF) via fiber optic cables connected to the total room cabinets. Fiber length were: workshops two IDF: total more than 1200 square meters, double the number of strands can be calculated by multiplying the average length of the number of information points are. Average level of each length of cable: L=[(S1+S2)/2]+L1+L2 l: average length of cable; L1: MDF cable allowance; L2: other allowances S1: minimum horizontal cable length; S2: maximum horizontal length of cable; Office building of information: a minimum of 26 meters, the longest was 92 meters, L=[(28+92)/2]+2.5+1=62.5 m; Total length of 62.5 m x792 = 49500-meter in each box (KFT) by 300 meters per carton; The twisted-pair cable box you want = 49500 ? 300=165 (KFT); losses not included, each about 15 meters. Metal line slot, and metal line tube of