The fourth-generation urea melt pump developed by Jiangsu Feixiang Pump Manufacturing Co., Ltd. has recently been applied in urea enterprises in Taian, Shandong and other places, and exported to Malaysia, the Philippines and other countries.
The urea plant delivers molten urine pelletizing melt pumps. Its first generation product was a single-stage, single-suction, cantilevered centrifugal pump developed in the 1970s. The pump sucked horizontally in the axial direction and discharged radially at the top. Due to the short axial structure of the pump, vibration is easily generated during operation and the pump is easily damaged.
The second-generation product uses double-layer insulation on the pump casing cover and the seal is made of water-ring metal soft material. It overcomes the disadvantages of the previous mechanical seals that are easy to crystallize, burn out, and replace the mechanical seal. It is expensive and the bearing box uses water at the same time. Cooling device protects the bearing.
In 2001, the third-generation urea melt pump developed by Feixiang Pump Co., Ltd., based on the absorption of Swiss technology, the primary and secondary impellers were combined to form the main impeller infusion and the secondary impeller reduced the pressure at the seal, while the main impeller passed the double suction action. The sealed liquid is sucked away, the sealing pressure is reduced, the liquid in the sealed chamber is no longer crystallized, the seal is not easy to wear, and the chemical liquid of China's pump products is easy to enter the sealed chamber, the seal is easy to wear out, the liquid can not flow out from the seal chamber, and the sealing pressure is increased. , The disadvantage of liquid adhesion is easy to leak.
The fourth-generation urea melt pump produced by Jiangsu Feixiang Pump Manufacturing Co., Ltd., on the basis of the third generation, transforms the main impeller into two parts, so that the liquid in the sealed part is absorbed twice. Even if the packing is damaged, the liquid will not flow out. At the same time, the fourth-generation urea melt pump has added heat sinks to the fuel tank jacket, which has reduced the bearing temperature, and can be continuously operated for two years without replacing bearings.
The urea plant delivers molten urine pelletizing melt pumps. Its first generation product was a single-stage, single-suction, cantilevered centrifugal pump developed in the 1970s. The pump sucked horizontally in the axial direction and discharged radially at the top. Due to the short axial structure of the pump, vibration is easily generated during operation and the pump is easily damaged.
The second-generation product uses double-layer insulation on the pump casing cover and the seal is made of water-ring metal soft material. It overcomes the disadvantages of the previous mechanical seals that are easy to crystallize, burn out, and replace the mechanical seal. It is expensive and the bearing box uses water at the same time. Cooling device protects the bearing.
In 2001, the third-generation urea melt pump developed by Feixiang Pump Co., Ltd., based on the absorption of Swiss technology, the primary and secondary impellers were combined to form the main impeller infusion and the secondary impeller reduced the pressure at the seal, while the main impeller passed the double suction action. The sealed liquid is sucked away, the sealing pressure is reduced, the liquid in the sealed chamber is no longer crystallized, the seal is not easy to wear, and the chemical liquid of China's pump products is easy to enter the sealed chamber, the seal is easy to wear out, the liquid can not flow out from the seal chamber, and the sealing pressure is increased. , The disadvantage of liquid adhesion is easy to leak.
The fourth-generation urea melt pump produced by Jiangsu Feixiang Pump Manufacturing Co., Ltd., on the basis of the third generation, transforms the main impeller into two parts, so that the liquid in the sealed part is absorbed twice. Even if the packing is damaged, the liquid will not flow out. At the same time, the fourth-generation urea melt pump has added heat sinks to the fuel tank jacket, which has reduced the bearing temperature, and can be continuously operated for two years without replacing bearings.