产品类别
主导产品
  • 商品名称: VLC立式长轴泵
  • 商品编号: 916
  • 上架时间: 2015-01-19
  • 浏览次数: 185

应用范围:

VLC型立式长轴泵广泛用于原生水处理厂、污水处理厂、电厂、冶金钢铁行业、矿山、市政工程及农田水力工程等。输送清水和含有一定固体颗粒(如铁屑、砂粒、煤粉等)的污水、具有腐蚀性的工业水、溶液、海水等;输送液体温度不超过80℃

性能范围:

流量:608400 m3/h       

扬程:10300 m

型号说明:                 

150VLC3-90A-L

150 — 泵排出口直径 (mm)

VLC — 立式长轴泵

3   — 叶轮级数(级数为1时省略)

90  — 未切割时设计点扬程m

A   — 叶轮外径切割代号

L   — 液下深度(mL≤18m

结构特点:

VLC型立式长轴泵入口垂直向下,出口水平,单基础安装。

1、泵进口装有滤网,开孔大小适当,既有效地防止大颗粒杂质进入泵内损坏水泵,同时又保证了净进水面积,最大限度减少进口损失,提高了泵效率。

2、充分考虑了叶轮及导叶的抗磨、耐腐蚀性,使叶轮等易损件寿命提高;叶轮和导叶体为多级,适应不同扬程要求。

3、叶轮采用平衡孔平衡轴向力,叶轮前后盖板均设有可更换的特殊堰堤型密封环,保护叶轮及泵体。有效防止泵停机后杂质沉淀至密封环间隙进口处,极大提高密封环和叶轮的使用寿命。

4、泵中间轴、扬水管和护管为多节,中间接轴采用套筒联轴技术,径向同轴度提高,整机振动减小;扬水管数量可根据用户需要的液下深度增减,适应不同的也下深度要求。

Operation range:

VLC vertical long shaft pump is widely used for water treatment, sewage water treatment, power plant, Iron and steel industry, mining, public engineering, irrigation, and water conservancy and so on. It can also be used to transport clean water and sewage water which is contain some solid particle( scrap iron, gravel, braize), corrosive industrial sewage water, sea water, the temperature of transport liquid can not exceed 80.

 

Performance range:

Capacity  Q:608400 m3/h     

Head    H:12.594.5 m

Description of pump type:

150VLC3-90A-L

150 pump discharge diameter

VLC Vertical long shaft pump

3 Impeller stage(Omitting 1 if the pump only one stage)

90  Design point head without cut.

A Impeller outer diameter cutting code.

L  Submerge depth

Construction Feature

VLC vertical long shaft pump’s suction straight down, discharge horizontal , single basic installation.

  1. Pump suction installs filter, and with suited hole,  it not only prevent the bigger particle enter into pump and broken pump, but also ensure inflow water area.  Lower suction loss, improve pump efficiency.

2. Take a full Consideration of the impeller and vane abrasion resistance, extend the life of  impeller and other wear parts.  Multistage Impeller and defuser are adapt to varies head .

3. The Impeller can balance its’ axial force by balance hole, there is replaceable special dam type seal ring installed the throatbush and frame plate liner insert that can protect impeller and casing. It can prevent impurity sediment enter into the suction seal ring gap, this can exceed the using life of seal ring and impeller.

4. Middle shaft, water pipes and protective tube are knobby.middle shaft used sleeve coupling technology, improve radial direction and shaft grade, it can reduce pump vibration. The quantity of water tube can be supplied according the customer need the under water.

5、泵扬水管由法兰连接,中间有导轴承。导轴承采用加强型填充聚四氟乙烯,也可采用丁腈橡胶(用于介质温度高于55)。

6、轴由护管保护,当输送清水时,可取消护管,导轴承不必接冷却润滑水;输送污水时,导轴承需外接冷却润滑水。

7传动轴长度合理,刚度足够,整机临界转速是泵转速的3倍以上,泵绝不共振。

8、泵的轴封为填料密封,也可以采用机械密封,轴封及导轴承处装有可更换的轴套,以保护轴。

9、泵的残余轴向力和转子部件的重量由泵自身的推力轴承承受或带推力轴承的电机承受。推力轴承用稀油润滑,采用自然冷却或外接水进行冷却。

10、叶轮的轴向位置由轴承部件上端或泵联轴器内的调整螺母来调整,十分方便。

11、水泵可配备控制柜,它具有根据液位自动启停和过载报警及实时远程监控等多种功能,可实现多泵联网远程集中控制。口径大于500mm的泵设有自动排气系统。

泵的转向:

  泵和电机直联,从电机端俯视泵为逆时针方向旋转。

选型说明:

  泵的性能参见泵的性能参数表,表中所列参数为一个大气压下常温清水不含扬水管和滤网的试验性能;计算装置扬程时,扬水管和滤性能参数表

 

perform

网的损失按每10m损失1.5M估算。

5. Water tube in pump connect by flange, install guide bearing in the middle. The material for guide bearing is  PTFE or nitrile rubber ( it used in the medium that the temperature is higher than 55).

6. Shaft is protected by protective tube, when transport clean water,  cancel the protective tube, the guide bearing don’t need to connect cooling lubrication water. When transport waste water, guide bearing need cooling lubrication water.

7. Suitable length rotor shaft, enough rigidity, complete machine’s critical speed is 3 times higher  than pump speed, pump has no resonance .

8. Pump shaft seal is packing seal, mechanical seal can also be taken. There is replaceable shaft sleeve installed during shaft seal and guide bearing, this can protect the shaft.

9. Pump residual axial force and rotor parts weight can be bear by its’ own thrust bearing or motor that have  thrust bearing  . The thrust bearing can be lubricated by thin oil, cooling by exterior water or by itself.

10. Axial position of the impeller can be adjusted by the nut on the top of bearing unit or in the pump coupling .it  is  very convenient.

11. Pump can be installed with control cabinet which obtain Auto start-stop, over load alarm and  Real-time remote monitoring function and so on, it can achieve  multiple pump connected to the remote centralized control . There is self-motion venting system installed if the pump caliber exceed 500mm.

Pump rotation:

Pump connected the motor directly. Pump rotation is anticlockwise when overlook from the motor end.

Model selection introduction:

You can reference to the performance parameter list, the specification listed is :in a atmospheric , the test performance for normal temperature clean water without lifting tube and strainer. When calculating installation head, the loss of lifting tube and strainer can according to 1.5M loss every 10m.