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英国GRIMM格林进口卧式多级离心泵概述：
进口卧式多级离心泵系卧式单吸多级分段式离心泵，采用了英国格林推荐使用的高效节能产品的水力模型，在行业内居技术lingxian地位。具有效率高、性能范围广、运转安全和平衡、噪音低、寿命长、安装维修方便等优点。供输送清水或物理化学性质类似于水的其它液体。也可以通过改变泵过流部件材质、密封形式和增加冷却系统用于输送热水、油类、腐蚀性或含磨粒的介质。产品执行ASME B73标准《多级清水离心泵型式与基本参数》标准。
英国GRIMM格林进口卧式多级离心泵结构说明：
进口卧式多级离心泵是壳体部分、转子部分、平衡结构、轴承部分及密封部分组成。
1、壳体部分：
壳体部分主要由吸入段、中段、吐出段、导叶、后段、轴承体等用螺栓联接而成。泵的旋转方向，从驱动端看泵为顺时针方向旋转。
2、转子部分：
转子部分主要由轴及装在轴上的叶轮、轴套、平衡盘等零件组成。轴上零件采用平键和轴套螺母紧固使之与轴成为一体，整个转子由两端轴承支承在泵壳体中。转子部件中叶轮数是根据泵级数而定的。
本型号泵在使用时，轴封一定要接水封水。采用是水封水分两种情况：一种是采用第一级叶轮的出水，另一种是引用外来水。凡表3中标明接水封水的均有引用外来水封水，未标明接水封水的均是采用第一级叶轮的出水作水封水。轴封的填料松紧程度必须适当，当液体能一滴一滴渗出为宜。当被输送的介质温度高于80℃时，必须向水冷填料压盖和轴封冷却室通入液冷却，冷却水和引用外来的水封水均为常温清水，冷却水水压为1.5-3kg/m3，水封水的压力要高于密封腔为0.5-1kg/m3。
3、平衡机构：
平衡机构由平衡环、平衡套、平衡盘和平衡管路等组成。
4、轴承部分：
轴承部分主要由轴承体和轴承组成。本型泵轴承有滑动轴承和流通动两种。轴承均不承受轴向力，泵在运行中，转子部分在泵壳体中应能自由地轴向游动，不能采用向心球轴承。
5、泵的密封及冷却：
壳体部分中的吸入段、中段、吐出段、导叶的结合面涂以二硫化钼润滑脂密封。
转子部分与固定部分之间靠密封环、导叶套、填料等密封。当密封环和导叶套的磨损程度已影响泵的工作和性能时，应予及时更换。
英国GRIMM格林进口卧式多级离心泵技术参数：
流 量：6.3-450m3/h
扬 程：50-650m
功 率：5.5-450KW
转 速：1450-2950r/min
口 径：40-200mm
温度范围：≤105℃
工作压力：≤3.0Mpa
英国GRIMM格林进口卧式多级离心泵适用范围：
供输送不含固体颗粒的清水及物理化学性质类似于清水的液体，液体的温度不超过80℃，适用于矿山、化工厂及城市给排水用。
UK GRIMM imported horizontal multi-stage centrifugal pump summary:
imported horizontal multi-stage centrifugal pump is a horizontal single suction multistage segmented centrifugal pump. It adopts the hydraulic model of high efficiency and energy saving products recommended by Green in England, and occupies the leading position in the industry. The utility model has the advantages of high efficiency, wide performance range, safe operation and balance, low noise, long service life, convenient installation and maintenance, etc.. Any other liquid that provides clear water or physical or chemical properties similar to water. It can also change the flow passage parts, seals, and add cooling systems to transport hot water, oil, corrosive or abrasive media. Products to implement ASME B73 standard "multi-stage centrifugal pump type and basic parameters" standards.
UK GRIMM imported horizontal multi-stage centrifugal pump characteristic:
imported horizontal multi-stage centrifugal pump is composed of shell parts, rotor parts, balance structure, bearing parts and sealing parts.
1.Shell part:
The shell part is mainly composed of a suction section, a middle section, a spit section, a guide vane, a back section, a bearing body and the like, which are bolted together. The direction of rotation of the pump, from the end of the drive, the pump rotates clockwise.
2.Rotor part:
The rotor part mainly consists of the shaft and the impeller, shaft sleeve and balance plate which are mounted on the shaft. The shaft parts are fastened by flat keys and sleeve nuts, so that the shaft and the shaft become one body, and the whole rotor is supported in the pump casing by both ends of the bearing. The number of rotors in the middle part of the rotor is determined according to the pump number.
When the pump is in use, the shaft seal must be connected with water sealed. Water seal is used in two conditions: one is the use of the first impeller of water, and the other is to quote foreign water. As shown in Table 3, the water sealed with water is referenced as an external seal water, and the water sealed with the first stage impeller is not used as the seal water. The degree of tightness of the packing gland must be appropriate, when the liquid can drop drop by drop. When the temperature of the medium transported is higher than 80 ℃, cooling water must be introduced into the packing gland and seal cooling chamber, cooling water and water are the external reference room temperature water, cooling water pressure is 1.5-3kg/m3, water pressure is higher than that of the seal cavity is 0.5-1kg/m3. Each type of pump water seal and seal cooling chamber, but the water pipeline interface position is different, the pipeline interface in the axial position see the pump structure.
3.Balance mechanism:
The balancing mechanism is composed of a balance ring, a balance sleeve, a balance disc and a balancing pipeline.
4.Bearing part:
The bearing part is mainly composed of bearing body and bearing. This pump bearing has two kinds of sliding bearings and circulation. Bearings are not subjected to axial force, the pump in operation, the rotor part in the pump housing should be able to freely move the axis of the earth, can not use radial ball bearings.
5.Sealing and cooling of pump:
The suction section, the middle section, the spit section and the guide vane of the shell part are coated with molybdenum disulfide grease to seal.
The rotor part and the fixed part are sealed by a sealing ring, a guide vane sleeve and a filling. When the wear degree of the seal ring and guide vane sleeve has affected the work and performance of the pump, it should be replaced in time.
UK GRIMM imported horizontal multi-stage centrifugal pump structure description:
1.The pump inlet and outlet are in the pump axis below the horizontal axis and vertical position, the pump shell. In the open, it is unnecessary to remove the water discharge pipe and a motor (or other prime movers) to see from the coupling to the pump, pump are inverse to the needle. Rotation. In accordance with the user's special order requirements, can also be changed to inch needle rotation.
2.Pump main components are: pump body, pump cover, impeller, shaft, double suction sealing ring, shaft sleeve, bearings and so on. The shafts are made of high quality carbon steel, and the remainder are made of cast iron. The pump body and the pump cover form the working chamber of the impeller, and the screw holes for installing the vacuum meter and the pressure gauge are arranged on the water inlet and the water outlet flange, and the lower part of the inlet and outlet water flanges is provided with a water outlet pipe hole.
3.The impeller is static balanced, fixed by the sleeve and the sleeve nuts on both sides. Its axial position can be adjusted through the sleeve nut, the axial force of the impeller with the symmetrical arrangement of its blades to achieve balance, there may be some residual bearing axial force which is coaxial end bearing.
4.The pump shaft is composed of two single row radial ball bearing, bearings mounted in the bearing body at both ends of the pump body, with lubrication, double suction to reduce the water pressure water chamber drain back to the suction chamber sealing ring.
5.The water pump is directly driven by the motor through the coupling.
6.The shaft seal is a soft packing seal, in order to cool, lubricate the sealing cavity and prevent leakage of air into the pump, there is a water seal between the packings. When the pump works, a small amount of high-pressure water flows through the water seal pipe into the packing chamber and acts as a water seal.
UK GRIMM imported horizontal multi-stage centrifugal pump technical parameter:
Flow rate: 6.3-450m3/h
Lift: 50-650m
Power: 5.5-450KW
Speed: 1450-2950r/min
Caliber: 40-200mm
Temperature range: less than or equal to 105 ℃
Working pressure: 3.0Mpa
UK GRIMM imported horizontal multi-stage centrifugal pump scope of application:
For the delivery of solid particles without water, and physical and chemical properties similar to the clear water, liquid temperature is not more than 80 ℃, suitable for mines, chemical plants and urban water supply and drainage.