Structural characteristics and application scope of double suction pumps

一、S型双吸中开泵概述

I. summary of S type double suction medium pump

S型单级双吸离心泵。主要适用于自来水厂,空调循环用水,建筑供水,灌溉,排水泵站,电站,工业供水系统,消防系统,船舶工业等输送液体的场合。

S single stage double suction centrifugal pump. Mainly applicable to water works, air conditioning circulating water, building water supply, irrigation, drainage pumping station, power station, industrial water supply system, fire fighting system, shipbuilding industry and other occasions of liquid delivery.

S系列单级双吸离心泵的运行数据  泵出口直径 DN 80~800mm  流 量 Q ≤11600m3/h

S series single stage double suction centrifugal pump running data pump outlet diameter DN 80~800mm flow Q = 11600m3/h

扬 程 H ≤200m  工作温度 T ≤105℃  固体颗粒 ≤80mg/L

The head H is less than 200m, the working temperature is T or less than 105, the solid particles are less than 80mg/L

工作许用压力 ≤25

Working allowable pressure is less than 25.

许用试验压力 ≤37.5

The allowable test pressure is less than 37.5.

二、S型双吸中开泵结构特点

Two, S type double suction medium pump structure features

1. 结构紧凑 外形美观,稳定性好,便于安装。

1. compact structure, beautiful appearance, good stability and easy installation.

2. 运行平稳 优化设计的双吸叶轮使轴向力减小到最低限度,且有优异水力性能的叶型,并经精密铸造,泵壳内表面及叶轮表面极其光华具有显著的抗汽蚀性能和高效率。

2. The double suction impeller with smooth operation and optimal design reduces the axial force to the minimum and has excellent hydraulic performance. After precision casting, the inner surface of the pump shell and the impeller surface are extremely glossy and have remarkable cavitation resistance and high efficiency.

3. 轴 承 选用SKF及NSK轴承保证运行平稳,噪音低,使用寿命长。

3. bearing adopts SKF and NSK bearings to ensure smooth operation, low noise and long service life.

4. 轴 封 选用BURGMANN机械密封或填料密封。能保证8000小时运行无泄漏。

4. shaft seal adopts BURGMANN mechanical seal or packing seal. It can ensure no leakage for 8000 hours.

5. 安装形式 装配时不需调整,可根据现场使用条件。分立式或卧式安装。

5. installation form does not need to be adjusted during assembly. Vertical or horizontal installation.

6. 加装自吸装置,可实现自动吸水,即不需安装底阀,不需真空泵,不需倒灌,泵可以启动。

6. Installing self-priming device can realize automatic water absorption, that is, no bottom valve, no vacuum pump, no backfilling, the pump can start.

三、S型双吸中开泵应用范围

Three, S double suction medium pump range of application

泵的零件用不锈钢板压制,经激光焊接而成,并有多种牌号的不锈钢可供选用,因而SLG型泵的用途十分广泛,主要适用于输送各种洁净水及轻腐蚀液体,可用于 住宅供水及增压 工业锅炉给水空调系统循环体会水 水处理和反渗透系统 食品工业,医药工业用水

The parts of the pump are pressed by stainless steel plate and welded by laser. There are many kinds of stainless steel to choose from.sjzhualang.89ix.comsjzqinhang.89ix.comsjzyiji.89ix.com sjzyingyu.89ix.com hsqingdian.89ix.com hsdinuan.89ix.com Therefore, SLG pump is widely used for transporting various clean water and light corrosive liquids. It can be used for circulating water treatment and reverse osmosis system of residential water supply and pressurized industrial boiler feed water air conditioning system. Food industry, water for pharmaceutical industry

单级双吸离心泵工作条件：

Working conditions of single stage double suction centrifugal pump:

流量范围：0.8m3/h~120 m3/h;

Flow range: 0.8m3/h~120 m3/h;

扬程范围：5.6m~330m;

Lift range: 5.6m~330m;

温度范围：-20℃~120℃;

Temperature range: -20 C ~120 C;

输送液体种类：各种清洁水及轻腐蚀液体;

The types of delivery fluids: all kinds of clean water and light corrosive liquids;

泵腔承压：≤4.0MPa。

Pump chamber pressure: less than 4.0MPa.

四、S型双吸中开泵型号意义

Four, S type double suction medium pump type significance

150S78A

150S78A

150—泵进口直径为150mm

150 - pump inlet diameter of 150mm

S—卧式单级双吸清水泵

S - horizontal single stage double suction clean water pump

SM—单级双吸耐磨泵

SM single stage double suction wear-resistant pump

SF—单级双吸耐腐蚀泵

SF single stage double suction corrosion resistant pump

SY—单级双吸油泵

SY single stage double suction pump

78—设计点扬程为78m

78 - design point lift is 78m

A—叶轮外径切割代号,Ⅰ表示叶轮外径增大

A - the outer diameter cutting code for impeller, i.

6Sh—6A

6Sh - 6A

6—泵进口直径为6吋(150mm)

6 - the inlet diameter of the pump is 6 inches (150mm).

Sh—卧式单级双吸清水泵

Sh - horizontal single stage double suction clean water pump

6—泵比转速的1/10取整

6 - 1/10 ratio of pump specific speed

A—叶轮外径切割代号

A - cutting code for impeller outer diameter