Self-Balancing Multistage Centrifugal Pump

HNYB self-balancing multi-stage centrifugal pump adopts an advanced hydraulic model and is a self-developed high-efficiency and energy-saving product. Since the pump rotor has no wear and axial movement of the balance disc, the alignment of the impeller and the guide vane is always in the best state. Different from other multi-stage pump structures, the efficiency is significantly reduced with the wear of the balance disc and the forward movement of the rotor parts, and there is no leakage of balance water, which reduces the volume loss. Overall, the operating efficiency of the pump is improved, the shaft power is reduced, and the efficiency is 3%-12% higher than that of general multi-stage pumps.

Driven by the motor, the shaft rotates to do work on the liquid, increasing its energy, so that the required amount of liquid is continuously delivered from the suction tank through the pump's water inlet section, vertical water outlet, positive impeller, positive guide vane, pump middle section, water outlet section, transition pipe, secondary water inlet section, reverse impeller, reverse guide vane, and water outlet section.

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The D/DY/DG/DF,/MD/MDS-P self-balancing multistage centrifugal pump is supported at both ends, and the housing part is segmented. The pump is connected to the motor through a pin elastic coupling.
The pump rotates clockwise from the drive end.
The structure of the pump is shown in the figure.

Stator part

It is mainly composed of suction section (inlet section), middle section, discharge section (outlet section), guide vane, secondary inlet section, stuffing box (tail cover) and bearing body,which all these parts connected with tension bolts into one unit. At the shaft end, the suction port of the pump is horizontal and right, and the discharge port is vertically upward.

Rotor part

It is mainly composed of shaft, impeller, throttle shaft components, bearings and bushings.

Sealing of the pump

The static joint surface between the pump suction section (inlet section), middle section, discharge section (outlet section), and secondary inlet section is sealed with sealant or molybdenum disulfide.

Throttle seals are used between pump stages.

The shaft seals on both sides of the pump are sealed with soft packing.

A water retaining ring is used to prevent water from entering the bearing.

Bearing

The whole rotor of the pump type is supported by the cylindrical roller bearing "GB/T283-94" at the drive end, and the end is supported by "GB/T292-94" angular contact ball bearing.The bearing is lubricated with CD30 or CD40 mechanical oil into the bearing body to the center of the oil mirror.Because the bearing adopts "GB/T292-94" anqular contact ball bearing, the assembled pump rotor has no axial movement.

High efficiency and energy saving: using advanced hydraulic models, independently developing high efficiency and energy saving products; because the pump rotor does not have the wear and axial pulsation of the balance disc, the concentricity of the impeller and the guide vane is always in the best state, and the efficiency will not be significantly reduced as the balance disc wears and the rotor parts move forward like the ordinary multi-stage pump structure; and there is no leakage of balancing water, which reduces the volume loss, improves the overall operation efficiency of the pump, reduces the shaft power, and is 3%-12% higher than the efficiency of ordinary multi-stage pumps on average.

New structure: with symmetrically arranged impeller rotor parts, the axial forces generated by the symmetrical impellers at all levels offset each other, and the automatic balance of the huge axial thrust in the pump cavity can be achieved without the use of a balance disc structure, breaking through the traditional structure of multi-stage pumps.

Good cavitation performance and long service life: optimized hydraulic and structural design, precise casting, reliable corrosion-resistant materials, some models of pumps use double suction structure for the first-stage impeller, so that the pump has good anti-cavitation performance, stable operation of the whole machine, low noise and long service life.

DP series pumps are used to transport clear water or liquids with physical and chemical properties similar to clear water without solid particles and with a temperature below 80°C.

DYP series pumps are used to transport oil and petroleum products that do not contain solid particles.whose temperature is between -20 and 105°C, and whose viscosity is less than 120cSt.

DGP series pumps are used to transport hot water, oil or abrasive-containing media with a temperature of ≤210°C, which is mainly reflected in the vertical inlet direction of the pump.

DFP series pumps can be used for mine drainage, mainly for conveying mine water and other corrosive liquids that do not contain particles and whose temperature is -20~104°C

MDP/MDSP series pumps can be used for mine drainage, mainly pumping neutral mine water anaother similar sewage with a solid particle content ≤1.5%, a particle diameter ≤1.3mm, and a temperature of -20 ~ 104°C.The user can select the pump material, sealing form, pump structure, and motor capacity according to the characteristics of the conveying medium and on-site use conditions.

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ISO14001

ISO45001

CE Product Certification

EAC Product Certification

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How To Cooperate With Us?

 

Our address

Zhaogang Industrial Park, Fengqiu, Xinxiang, Henan, China

WhatsApp Number

+86 158 3619 1545

E-mail

sales@hnybpumps.com

 

FAQ

Q: ARE YOU A MANUFACTORY OR TRADING COMPANY?

A: We are water pump manufactory with more than 30 years production experience.

Q: CAN YOU DO OEM BRAND?

A: Yes, welcome.

Q: WHAT IS THE DELIVERY TIME?

A: 7-10 days according to customer quantities.

Q: WHAT'S YOUR MOQ?

A:  Minimum order quantity is 1 piece 

Q: WHAT IS THE PRICE OF THE PRODUCT?

A: The product price range is $1050-1399

Q:  WHAT'S YOUR PAYMENT TERMS?

A:  T/T,L/C, D/P,D/A ...

Q: WHAT CERTIFICATES DO YOU HAVE?

A: ISO9001,ISO14001,ISO45001,AAA Credit Enterprise,AAA credit rating,Honest supplier,Honest Entrepreneur, Quality Service Integrity Unit.

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