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FY type stainless steel corrosion resistant liquid pump
Classification:
OH1/OH2 Chemical pump
FY type stainless steel corrosion resistant liquid pump
Petrochemical industry
Metallurgical industry
Key words:
water pump
Head range: 13~40m
Conveying temperature:-20~140 ℃
Inlet pressure: ≤ 0.3 MPa
Sealing form: mechanical seal
Water pump material: HT200, HT250, QT600, ZG, 304, 316, 316L, 317L, 904L, CD4-MCu, etc
Hotline:
- Product Description
- Performance Parameter
- Installation Drawings
- Installation And Use
- Faults And Solutions
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- Commodity name: FY type stainless steel corrosion resistant liquid pump
Flow range: 3.27~100.8 m3/h<br>Head range: 13~40m<br>Conveying temperature:-20~140 ℃<br>Inlet pressure: ≤ 0.3 MPa<br>Sealing form: mechanical seal<br>Water pump material: HT200, HT250, QT600, ZG, 304, 316, 316L, 317L, 904L, CD4-MCu, etc</br></br></br></br></br>
Product Description
FY series submerged pump is a new type of pump produced by this unit on the basis of traditional corrosion-resistant submerged pumps and integrating the advanced technology of the same products of Sulzer Company of Switzerland. The pump cancels the mechanical seal commonly used in other submerged pumps and selects the impeller with unique structure, making the pump highly efficient, energy-saving, non-leakage and long service life, thus being widely used in petroleum, chemical, pharmaceutical, papermaking, metallurgy, sewage treatment and other industries.

Overview
FY series submerged pump is a long-axis vertical centrifugal pump. Its contact part with medium is made of cast steel or stainless steel. The submerged depth varies from 0.5 M-6M according to customer's requirements. The working part is submerged in liquid. It has wide application range and high efficiency. It can be transported without liquid filling. The axial force and radial force generated by pump operation are respectively supported by rolling bearings in the upper part of the liquid and sliding bearings under the liquid, therefore, the operation is quiet and no noise, is a set of environmental protection and energy saving high-tech products.
Structure Description
FY type is mainly composed of pump body, pump cover, impeller, shaft elastic shaft device, pipe flange, guide bearing, intermediate connecting pipe, upper and lower liquid outlet pipe, bearing frame, bottom plate and other parts. The suction port of the pump is along the axis direction, and the outlet is parallel to the axis. The rotation of the pump is clockwise when viewed from the motor end.
The vertical motor of FY series submerged pump is fastened to the motor seat with double-headed bolts, and directly connected to the pump through elastic coupling. The pump body, intermediate connecting pipe, bearing frame, liquid discharge pipe and pipe flange are connected to form a whole body and fixed on the bottom plate. The whole pump is installed on the device through the bottom plate. Other main parts of FY pump except the parts contacting the liquid, such as motor seat, bearing frame and bottom plate, are made of cast iron.
The axial force and radial force of the pump (including the water pressure generated in the pump cover, the weight of the impeller and rotor, etc.) are all supported by single row thrust roller bearings, double row radial ball bearings and sliding guide bearings installed in the bearing box. For safe and normal operation, the two rolling bearings shall be lubricated with grease. When the liquid lubricating medium delivered by the guide bearing body contains a small amount of normal particles, the guide bearing shall be lubricated by external cleaning liquid.
FY series liquid pump adopts J-type skeleton oil seal at the gap between the sealing plate and the shaft to prevent the leakage of corrosive gas. According to the viscosity of the conveying medium, the impeller is divided into closed and semi-open type, usually using closed impeller. In addition, the FY series of submerged pumps are divided into structures with intermediate guide bearings and structures without guide bearings due to the different lengths of the extender.
1. The pump is a vertical submersible pump with beautiful appearance and is directly installed on the storage of the transported medium without additional floor space, thus reducing the investment in infrastructure.
2. The mechanical seal is canceled, which solves the trouble that other submersible pumps need frequent maintenance due to easy wear of mechanical seals, saves the operating cost of the pump, and improves the work efficiency.
3, the use of a unique centrifugal double balance impeller, for the transport does not contain solid particles and other clean media, low vibration noise, high efficiency; the use of open double balance impeller, for the transport of not clean with solid particles and short fibers of the liquid, smooth operation, not blocked.
Model Description
Example: 50FYB-25AK
50 -- pump suction diameter 50mm
FY-Submersible Pump
B- Material 1Cr18Ni9Ti Stainless Poetry
25 -- lift 25m
A- -Impeller first cut
K -- open impeller
Conditions of use
1. The temperature of the conveyed medium is -20-140 ℃;
2, cast iron material pump, medium PH value in the range of 5-9;
3. For the pump with open impeller, the diameter of solid particles contained in the conveyed liquid should not exceed 30% of the diameter of the pumped population.
Features
1. The pump is a vertical submersible pump with beautiful appearance and is directly installed on the storage of the transported medium without additional floor space, thus reducing the investment in infrastructure.
2. The mechanical seal is canceled, which solves the trouble that other submersible pumps need frequent maintenance due to easy wear of mechanical seals, saves the operating cost of the pump, and improves the work efficiency.
3, the use of a unique centrifugal double balance impeller, for the transport does not contain solid particles and other clean media, low vibration noise, high efficiency; the use of open double balance impeller, for the transport of not clean with solid particles and short fibers of the liquid, smooth operation, not blocked.
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流量范围:3.27~100.8 m3/h
扬程范围:13~40m
输送温度:-20~140℃
进口压力:≤0.3 MPa
密封形式:机械密封
水泵材质:HT200、HT250、QT600、ZG、304、316、316L、317L、904L、CD4-MCu等
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拆卸与装配
(1)如更换或检查叶轮,可关闭出口阀门,卸去法兰连接螺栓和底板连接螺栓,用起重工具将泵吊出容器。
(2)将底板垂在支架上,卸去泵体的所有螺栓,取出泵盖和叶轮螺母,用双锤轻击泵体,即可卸下叶轮。
(3)对更换滚动轴承或填料,则底板不动,只要卸去电机及相应支架,卸去泵联轴器、压盖、圆螺母,取出轴承体。要更换填料,先取出填料压盖,再取出并更换的填料。
(4)装配与拆缶NB,0次序相反,一定要注意轴上配件的同心度。
安装、使用、维修
1、泵组装后,盘动联轴器,看是否转动灵活。检查是否有金属磨擦声,各部件螺母是否旋紧。
2、检查泵轴和电机轴的同心度,两联轴器外圆左右差数不得超过0.1mm,两联轴器端面间隙保持1~2.5mm。
3、泵的吸人口到容器底部之间距离为2~3倍吸人口径,泵体距器壁大于口径的2,5倍。
4、泵的出液管路,应另设支架支撑,其重量不允许支撑在泵上。
5、检查电机的旋转方向,使泵的旋转方向符合指示方向。
6、关闭出口管路上的闸阀及压力表,接通冷却水管。
7、起动电机,开压力表,慢慢开启出口管闸阀到需要的位置,投人正常运转。
8、经常检查泵和电机的情况,轴承温升不应超过75℃,轴承盒内应加足够黄油。
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一、泵不能启动
1、电源故障:应检查电源开关和线路。
2、电机接线故障:应检查电机连接。
3、泵内部堵塞:应检查泵内是否存在异物。
4、电机故障:应检查电机是否损坏。
二、泵出水量减少
1、泵鼓腔漏气:应检查轴封、密封圈和阀门是否损坏。
2、进口阀门漏气:应检查阀门密封圈是否损坏。
3、泵腔内有异物或者泵内摩擦或阻塞:应检查泵内是否存在异物,清理泵内存积物。
三、泵运行时噪声过大
1、泵底盘与支架接触不紧密:应重新安装或更换支架。
2、泵鼓腔与泵体接触不紧密:应调整轴向间隙以保证接触紧密。
3、轴承损坏或者异物进入:应更换轴承。
四、泵温度升高
1、泵着火或者烧坏:应检查泵是否损坏,更换未损坏的部位。
2、轴承损坏或润滑不良:应检查轴承和润滑系统,更换轴承,加强润滑。
以上为液下泵常见故障及其解决方法,用户在使用液下泵时应注意定期维护和保养,并根据具体故障及时排除。这样可以延长液下泵的使用寿命并保障生产安全。
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