S型单级双吸水平中开式离心泵
概述
Ｓ型泵系Ｓ系列更新换代的高效节能新产品，广泛用于现代城市给排水、电站、工业流程系统的取水、加压、农田排灌及各种水利工程、石化工程等。
Ｓ型泵采用国家标准规范设计、其系列化、标准化、通用化程度高、性能优越、运行平稳、安全可靠。在设计中采用新结构、便于维护、维修和保养；采用新材质，可适用于多种介质的输送。
主要性能参数范围
泵出口直径 100～1200mm
流量 Q=70～22392m3/h
扬程 H=8～150m
工作温度 T=-20℃～200℃
固体颗粒 ≤80mg/L
工作许用压力 ≤4MPa
[可根据用户要求设计]
我们重视节能环保，通过分析介质及运行环境的要求，对过流部件采取最优的材质组合，以达到安全、可靠、经济运行。
项目 型号 | **MS**-(L) | **MS**-(L)-M | **MS**-(L)-F | **MS**-(L)-Y |
泵壳 | 灰铸铁 | 球墨铸铁、铸钢、不锈钢等，根据介质特性而定 | 球墨铸铁、铸钢、不锈钢等，根据介质特性而定 | 镍铬铸铁 |
叶轮、双吸密封环、轴套 | 灰铸铁 | 球墨铸铁、铸钢、不锈钢、青铜、硅黄铜等，根据介质特性而定 | 球墨铸铁、铸钢、不锈钢、青铜、硅黄铜等，根据介质特性而定 | 铸铁、不锈钢、锡青铜、硅铜等，根据介质特性而定 |
轴 | 优质碳钢、不锈钢等 | 优质碳钢、不锈钢等 | 优质碳钢、不锈钢等 | 优质碳钢、不锈钢等 |
轴封形式 | 填料、机封 | 填料、机封 | 填料、机封 | 填料、机封 |
结构特点 | 采用经济、环保型材质 | 采用抗磨结构和耐磨材质 | 采用耐腐蚀材质和机械密封 | 采用机械密封和外加冷却系统结构 |
输送介质 | 清水或物理化学性质类似于水的液体 | 用于河水等，多泥沙介质输送 | 用于各类腐蚀介质输送 | 用于各类油品输送 |
适应场合 | 工业和城市给水、排水、消防系统、电厂、空调水循环、亦可用于农业排灌 | 农田排灌、水利工程。工业流程系统的取水加压 | 硫酸磷肥业，有色金属冶炼业、氯碱业、煤炭工业、化工及其它企业 | 石化工程、石油输送等 |
泵型号说明
例：500S35A-L-M (F.Y)-J
500—吸入口径约500mm
S—单级双吸、中开离心清水泵
35—设计点扬程约35m
A—表示叶轮外径第一次变化，A、B、……依次类推
L—立式机构
M—耐磨型
F—耐腐型
Y—耐油型
J—泵转数改变（保持原来转速时不表示）
结构特点
效率高于Ｓ系列产品
Ｓ型泵是在原Ｓ型泵的基础上，更换了其中效率较低的模型，并通过对所有产品水力模型进行ＣＦＤ分析和优化，提高了产品效率，降低了运行成本。全系列产品符合国家节能产品认证标准，为新型节约型水泵。
产品结构简单，检修方便
整体采用轴向中开剖分结构，吸入口与吐出口均在泵体上，检修无需拆卸进出口水管及原动机，利用双吸叶轮的对称布置特点，自动平衡轴向力，结构简单。
先进的密封方式
在保留原Ｓ系列泵结构简单的基础上，针对Ｓ系列产品运行存在的问题，在产品结构设计上进行改进，提高了产品运行可靠性；
产品轴封采用通用化设计，用户可以根据实际需求采用不同的轴封，并且可以非常简单直接进行更换，以适应更广的环境要求。
轴套采用径向插入式Ｏ形圈密封，加装了末端密封套，大大提高了轴套内密封的可靠性，保证所输送的介质不会进入轴承而导致整机破坏，且安装简单方便。
防反转结构
采用防反转固定螺母，允许水泵短时间反转，从而解决了Ｓ系列经常发生的因反转导致的质量事故。
Overview
S pump is the upgraded high-efficient new product of S series product. It has been widely utilized on modern city water supply and drainage, power stations, industrial process water intake, pressure, farmland irrigation and drainage, various water conservancy engineering and petrochemical engineering etc..
S pump is designed according to national standard specification. It is characterized of high serialization, standardization and generalization. The performance is excellent. The operation is smooth, safe and reliable. A new structure is adopted in design to facilitate maintenance, repair and overhauling; new material is adopted to be suitable for transportation of a variety of mediums.
Main performance parameters range
Pump outlet diameter 100～1200mm
Flow Q=70～22392m3/h
Hydraulic head H=8～150m
Working temperature T=-20℃～200℃
Solid particles ≤80mg/L
Working allowable pressure ≤4MPa
[The design shall be based on user requirements.]
We attached importance to energy conservation and environmental protection. The optimal combination of materials is adopted on flow passage components by analyzing the medium and operating environment requirements to realize safe, reliable and economic operation.
Item Type | **MS**-(L) | **MS**-(L)-M | **MS**-(L)-F | **MS**-(L)-Y |
Pump case | Gray pig iron | Nodular cast iron, cast steel and stainless steel etc. are determined according to media characteristics | Nodular cast iron, cast steel and stainless steel etc. are determined according to media characteristics | Nickel-chromium cast iron ,stainless steel etc. |
Impeller, double-suction sealing ring and axle sleeve | Gray pig iron | Nodular cast iron, cast steel ,Bronze and silicon brass stainless steel etc., are determined according to media characteristics | Nodular cast iron, cast steel ,Bronze and silicon brass stainless steel etc., are determined according to media characteristics | Cast iron, stainless steel, tin bronze, silicon brass etc., are determined according to media characteristics |
Axis | High-quality carbon steel and stainless steel etc. | High-quality carbon steel and stainless steel etc. | High-quality carbon steel and stainless steel etc. | High-quality carbon steel and stainless steel etc. |
Shaft seal form | Padding material and mechanical seal | Padding material and mechanical seal | Padding material and mechanical seal | Padding material and mechanical seal |
Structure characteristics | Economic and environmental protection materials are adopted. | Wear-resistant structure and abrasion-resistant materials are adopted. | Abrasion-resistant materials and mechanical seal are adopted. | Mechanical seal and external cooling system structure are adopted. |
Transmission medium | Clean water or fluid with physicochemical properties similar to water | To be used for river water and sediment-laden medium transportation | To be used for transportation of various corrosive mediums | To be used for various oils |
Applicable occasions | Industrial and urban water supply, water drainage, firefighting system, power plant, air conditioning water circulation, and agricultural irrigation | Farmland irrigation and hydraulic engineering Water intake and pressurization of industrial process system | Sulfuric acid phosphate fertilizer industry, non-ferrous metal smelting industry, chlor-alkali industry, coal industry, chemical industry and other enterprises | Petrochemical engineering and oil delivery etc. |
Model description
Ex: 500S35A-L-M (F.Y)-J
500—Suction inlet diameter is about 500mm
S—Single-stage double-suction axially split pump
35— The design point head is 35m
A—Refers to the first change of impeller outer diameter, A, B……and so on
L—Vertical mechanism
M—Wear resistant type
F—Anti-corrosive
Y—Oil resistant type
J—Pump speed change (not that maintain the original speed)
Structure characteristics
The efficiency is higher than that of S series product.
S-type pump is based on the original S pump. The models with low efficiency are replaced. Through CFD analysis and optimization of all hydraulic models, product efficiency has been improved and operating cost has been reduced. The full series of products comply with national energy-saving product certification standards. They are new energy-saving pumps.
Product structure is simple. And the maintenance is convenient.
Axial direction axially split dissection structure is adopted as a whole. The inlet and outlet are on the pump body. The import and export water pipes and prime mover are not required to be removed at overhauling. Balance the axial force automatically by utilizing the symmetrical layout characteristics of double-suction impeller. The structure is simple.
Advanced sealing method
On the basis of reserving the simple structure of S series pump structure, the product has improved product structure design and enhanced the product reliability specific to the existing problems of product running.
The shaft seal adopts generalization design. The user can apply different shaft seals according to practical requirements. The shaft can be directly replaced very conveniently thus to adapt to the broader environmental requirements.
The axle sleeve adopts radial plug-in O-shape sealing. The end sealing set is additionally installed which has significantly improved the reliability of shaft sleeve sealing so that the transmission medium will not enter the bearing and will lead to the assembly destroy. The installation is quite simple and convenient.
Anti-reverse structure
Anti-reverse fixed nut is adopted. Short-term reversal is allowed on the water pump thus to solve the frequent quality accident arising from reversal of S series products.
