双吸泵的结构特点及使用范围

Structure characteristics and use range of double suction pump

一、S型双吸中开泵概述

An overview of S type double suction open 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 type single stage double suction centrifugal pump. It is mainly applicable to water plant, air conditioning, water supply, water supply, irrigation, drainage pumping station, power station, industrial water supply system, fire control system, ship industry and other liquids.

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

The permissible pressure of work is less than 25

许用试验压力 ≤37.5

Allowable test pressure less than 37.5

二、S型双吸中开泵结构特点

Structure characteristics of two and S double suction medium open pump

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 of the stationary and optimized design reduces the axial force to a minimum, and has excellent hydraulic performance, and the inner surface of the pump shell and the surface of the impeller are extremely resistant to cavitation and high efficiency by precision casting.

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 guarantee 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. adding self priming device can realize automatic water absorption, that is, no need to install bottom valve, no vacuum pump, no need to pour backward, pump can start.

三、S型双吸中开泵应用范围

Three, S type double suction open pump application range

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 made of stainless steel plate and made by laser welding, and there are many kinds of stainless steel for selection, so the use of SLG pump is very wide. It is suitable for transporting all kinds of clean water and light corrosion liquid. It can be used for water and water treatment and reverse osmosis system in residential water supply and pressurized industrial boiler water supply and air conditioning system. Food industry, water use in the pharmaceutical industry

单级双吸离心泵工作条件：

Single stage double suction centrifugal pump working conditions:

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;

Head 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

Model meaning of type four and S double suction medium open pump

150S78A

150S78A

150—泵进口直径为150mm

150 - the inlet diameter of the pump is 150mm

S—卧式单级双吸清水泵

S - horizontal single level double suction 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 anticorrosion pump

SY—单级双吸油泵

SY - single stage double suction oil pump

78—设计点扬程为78m

78 - design point head 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 level double suction water pump

6—泵比转速的1/10取整

The 1/10 recovery of the 6 - pump specific speed

A—叶轮外径切割代号

A - the cutting code of the outer diameter of the impeller