Horizontal Chemical Centrifugal Pump

Brief introduction:



HZ series chemical process pump including HZclosed impeller type, HZJsemi-open impeller type and HZQfully-open impeller type. It is an elaborately developed chemical process pump of new generation which absorbed the advanced technology of both home and aboard,and eliminated the technical defects of IH and CZ chemical process pump,with the advantages of better anti-cavitation performance, stable sealing performance, smooth operation and easy maintenance. The high interchangeability,transforming structures and various anti-corrosive materials satisfy the requirements of different applications,and therefore is widely used.



Parameters:

 

Flow rate: Q 22050 m³/h

Total head: H3150 m

Pump speed: n1450/2900rpm

Design temperature: T-20150ºC

Fluid s.g.: 1.85

Pump diameter: 50350mm



Features:

Conform to ISO2858GB5662and GB/T5656equivalent to ISO5199

Heavy shaft of increased diameter, the bearing capacity of bearings is averagely increased by 75160%, the life of bearings are tremendously extended.

Forced internal cooling cartridge mechanical seal and big sealing chamber reduced the possibility of breakdown.

Easy adjust method of pump rotor part to maintain low pressure of sealing chamber, to reduce the axial force,and therefore guaranteed the stable operation of pump.

Several transforming designs enlarged the range of application of pump, increased the reliability of pumping special fluids.

High interchangeability of pump parts reduced the cost on spares  parts for clients.



Structure:

Single stage,single suction,horizontal centrifugal pump. Bracket structure for bearing parts, the bearing housing is supported by the bracket. The axial displacement of pump rotor part can be adjusted by a special bolt. Closed impellerHZ type,semi-open impellerHZJ type and fully opened impellerHZQ type are available.

The impeller is connected with shaft by screw thread, an anti-vortex plate is adopted at the pump inlet to increase the reliability of pump.

The impeller with rear blades is adopted to balance the axial force at the pump suction. And the gap between the rear blades of impeller and pump cover can be adjusted by a bolt.

The pump structure is back pull type,the rotor partimpeller,shaft,shaft sealing and bearings can be removed without dismantling the pipes during maintenance.

The shaft sealing is cartridge mechanical seal, and can be customized as single mechanical seal, packing sealing and secondary impeller packing sealing.