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FJX axial flow force circulation pump

I Summary For Axtal Pump

FJX axial flow evaporative circulation pump

. Overview
1. Scope of application: The company's production of FJX is now used for: diaphragm caustic soda, phosphoric acid, vacuum salt, lactic acid, calcium lactate, alumina, titanium dioxide, calcium chloride, ammonium chloride, sodium chlorate, sugar, Evaporation, concentration and cooling of molten salt, paper making, waste water and other industries, in order to increase the production capacity of the equipment and increase the heat transfer coefficient of the heat exchanger for forced circulation.
2. Installation location: The ground foundation (which can be configured according to the user's needs) is directly suspended from the evaporator.
3. Pump form: horizontal
4. Transmission mode: direct transmission, belt transmission, hydraulic coupling, universal joint transmission.
5. Sealing structure: combined mechanical seal, packing seal.
6. Pump body manufacturing method: casting, welding.
7. Performance range:
   Flow range: 300~23000m3/h 
Head range: 2~12m
Working pressure: ≤0.6MPa 
Working temperature: ≤170°C
Pump body structure: casting or steel plate welding.
Overcurrent part material: ZG, 20#, titanium, 1Cr18Ni9Ti, 304, 316L, CD4MCu
8. Model Description
   Example: FJX 250
FJX: Evaporation circulating pump code
       250: impeller nominal diameter (mm) [pump body diameter]


FJX stainless steel forced circulation pump
 


Second, the structure description
 
 

Structural cross-section of horizontal axial pump (forced circulation pump)
The FJX axial flow evaporative circulation pump produced by our factory has the following characteristics:
  1, low speed, the general speed is less than 980r / min, in line with the crystallization process requirements run smoothly.
2, excellent hydraulic performance, efficiency 〉70% high efficiency zone width, good anti-cavitation performance.
  3, consider the pump medium flow direction is vertically downward, horizontal direction. The great influence of the water flow force on the pump shaft adds a pump shaft casing protection device to the pump body. The subduction force of the medium is transferred to the pump body, thereby ensuring the stable operation of the pump, greatly reducing the influence of the medium on the mechanical sealing force and prolonging the service life of the machine seal. The improvement of this structure has taken a big step in the domestic similar products. In addition, the pump body adopts integral casting rigidity and the intermediate support structure is stable. The horizontal axial flow pump has no guide vanes.
 4, the bearing box parts are square long-span heavy-duty structure, good stability, strong carrying capacity, reliable operation, compared with domestic similar products, easy to install (the original domestic bearing box is split type). Radial short cylindrical bearings and heavy paired bearings are used at the front and rear ends respectively. Its bearings are made of NSK (SKF) or domestic high quality bearings.
 5, advanced shaft sealing, the use of the auxiliary impeller dynamic seal and Borgmann fast-mounted double-end mechanical seal combination, external cooling rinse water, improve the shaft seal working conditions, machine seal life. The outer circumference of the bushing is enlarged, and the wall thickness is thicker and smaller than the domestic similar products.


Evaporative circulation pump
Third, FJX axial flow evaporative circulation pump working principle
The FJX axial flow pump transports liquid not by the centrifugal force of the impeller to the liquid, but by the thrust of the rotating impeller blades to cause the liquid to be transported to flow in the direction of the pump shaft. When the pump shaft is rotated by the motor, since the blade has a certain helix angle with the axis of the pump shaft, a thrust (or lift) is generated to the liquid, and the liquid is pushed out to be discharged along the discharge pipe. When the liquid is pushed out, a partial vacuum is formed at the original position, and the outside liquid is sucked into the impeller along the inlet pipe under the action of atmospheric pressure. As long as the impeller rotates continuously, the pump continuously draws in and discharges liquid.
FJX axial flow pump with a head of up to 5 meters and a flange standard of 6 kg. Can also be customized according to needs.
Fourth, the cause of the failure and the elimination method

Five, FJX axial flow pump performance parameters
 

II Operating Property Table For Axial Pump

 II Operating Property Table For Axial Pump