英國GRIMM格林進口臥式多級離心泵 UK GRIMMImported horizontal multi-stage centrifugal pump

英國GRIMM格林進口臥式多級離心泵概述：
進口臥式多級離心泵系臥式單吸多級分段式離心泵，采用了英國格林推薦使用的高效節能產品的水力模型，在行業內居技術領先地位。具有效率高、性能范圍廣、運轉安全和平衡、噪音低、壽命長、安裝維修方便等優點。供輸送清水或物理化學性質類似于水的其它液體。也可以通過改變泵過流部件材質、密封形式和增加冷卻系統用于輸送熱水、油類、腐蝕性或含磨粒的介質。產品執行ASME B73標準《多級清水離心泵型式與基本參數》標準。

英國GRIMM格林進口臥式多級離心泵結構說明：

進口臥式多級離心泵是殼體部分、轉子部分、平衡結構、軸承部分及密封部分組成。
1、殼體部分：
殼體部分主要由吸入段、中段、吐出段、導葉、后段、軸承體等用螺栓聯接而成。泵的旋轉方向，從驅動端看泵為順時針方向旋轉。
2、轉子部分：
轉子部分主要由軸及裝在軸上的葉輪、軸套、平衡盤等零件組成。軸上零件采用平鍵和軸套螺母緊固使之與軸成為一體，整個轉子由兩端軸承支承在泵殼體中。轉子部件中葉輪數是根據泵級數而定的。
本型號泵在使用時，軸封一定要接水封水。采用是水封水分兩種情況：一種是采用第一級葉輪的出水，另一種是引用外來水。凡表3中標明接水封水的均有引用外來水封水，未標明接水封水的均是采用第一級葉輪的出水作水封水。軸封的填料松緊程度必須適當，當液體能一滴一滴滲出為宜。當被輸送的介質溫度高于80℃時，必須向水冷填料壓蓋和軸封冷卻室通入液冷卻，冷卻水和引用外來的水封水均為常溫清水，冷卻水水壓為1.5-3kg/m3，水封水的壓力要高于密封腔為0.5-1kg/m3。
3、平衡機構：
平衡機構由平衡環、平衡套、平衡盤和平衡管路等組成。
4、軸承部分：
軸承部分主要由軸承體和軸承組成。本型泵軸承有滑動軸承和流通動兩種。軸承均不承受軸向力，泵在運行中，轉子部分在泵殼體中應能自由地軸向游動，不能采用向心球軸承。
5、泵的密封及冷卻：
殼體部分中的吸入段、中段、吐出段、導葉的結合面涂以二硫化鉬潤滑脂密封。
轉子部分與固定部分之間靠密封環、導葉套、填料等密封。當密封環和導葉套的磨損程度已影響泵的工作和性能時，應予及時更換。

英國GRIMM格林進口臥式多級離心泵技術參數：

流 量：6.3-450m3/h
揚 程：50-650m
功 率：5.5-450KW
轉 速：1450-2950r/min
口 徑：40-200mm
溫度范圍：≤105℃
工作壓力：≤3.0Mpa

英國GRIMM格林進口臥式多級離心泵適用范圍：
供輸送不含固體顆粒的清水及物理化學性質類似于清水的液體，液體的溫度不超過80℃，適用于礦山、化工廠及城市給排水用。

UK GRIMMImported horizontal multi-stage centrifugal pumpsummary:

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 GRIMMImported horizontal multi-stage centrifugal pumpcharacteristic:

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 GRIMMImported horizontal multi-stage centrifugal pumpstructure 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 GRIMMImported 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 GRIMMImported horizontal multi-stage centrifugal pumpscope 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.