Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations

Product Details
Customization: Available
After-sales Service: Online After-Sale Service
Warranty: 12 Months
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50000000 RMB
Plant Area
>2000 square meters
  • Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
  • Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
  • Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
  • Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
  • Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
  • Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
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  • Overview
  • Product Description
  • Detailed Photos
  • Product Parameters
  • Product Application
  • Facilities & Equipments
  • FAQ
Overview

Basic Info.

Model NO.
SHDG85-45/8
Max.Head
>150m
Max.Capacity
>400 L/min
Driving Type
Motor
Impeller Number
Multistage Pump
Working Pressure
High Pressure Pump
Influent Type of Impeller
Single Suction Pump
Position of Pump Shaft
Horizontal Pump
Pump Casing Combined
Verticaljoint Surface Pump
Mounting Height
Suction Centrifugal
Impeller
Closed
Usage
Pump, Pumps, Condensate Pump, Circulating Pump
Material
Cast Iron, Cast Steel, Stainless Steel, Bronze
Seal Type
Mechanical Sea or Packing Gland Seal
Coupling
Flexible Pins/Disc
Driver
Electric Motor/Diesel Engine
Transport Package
Plywood Case
Specification
2200*900*1500mm
Trademark
SEMHAI or OEM
Origin
China
HS Code
8413709990
Production Capacity
1000000sets/Year

Product Description

Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations

Product Description

Introducing the SHD and SHDG series, our single-suction multistage centrifugal pumps, expertly engineered for the conveyance of water and fluids with similar physical and chemical properties, free from solid particles. The SHD pump is ideal for temperatures below 80 ºC, making it perfect for applications in mines, industrial factories, and urban drainage systems. Meanwhile, the SHDG variant is tailored for higher temperatures, up to 105 ºC, and is perfect as a boiler feed pump or for transporting hot water, ensuring optimal performance in demanding scenarios.

Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations

Structural Features
The robust SHD and SHDG pumps are meticulously crafted from essential components such as the stator, rotor, bearings, and a reliable shaft seal.
1. Stator Part: Composed of sections like the suction, middle, discharge, and guide vanes, all clamped securely with tension bolts. The SHD-type pump features a horizontal inlet and vertical outlet, while the SHDG type is designed with both inlet and outlet positioned vertically for enhanced performance.
2. Rotor Parts: Includes key elements such as the shaft, impeller, balance plate, and bushings. The shaft transmits power to the impeller, facilitating its operation, while the balance plate efficiently manages axial force. Both ends of the shaft are fortified with replaceable sleeves for added protection and longevity.
3. Bearing Part: Incorporates two types of bearings - rolling and sliding:
Sliding Bearings: Comprised of a bearing body, caps, bearings, dust disk, oil level gauge, and rejection mooring rings, all lubricated with thick oil. Rolling Bearings: Primary components include the main body, bearings, and gland, with grease used for lubrication to ensure smooth operation and efficiency.
4. Shaft Seal Parts: Featuring either mechanical or packing seals, these crucial components include the water segment and sealed body filler with retaining ring elements in the tail cover. The seal chamber's liquid functions as a water seal, with cooling and lubrication provided by water. SHD pumps draw seal water from internal pressure, while SHDG models utilize external cooling water at normal temperatures. The seal water pressure should exceed the chamber pressure by 0.05-0.1MPa, with cooling water pressure set at 0.15-0.3MPa for optimal sealing efficiency.
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations

Furthermore, the pump is driven directly by a prime motor connected through a flexible coupling, ensuring efficient and smooth operation. It rotates clockwise when viewed from the prime motor end, highlighting its precision engineering.
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations

The SHD and SHDG centrifugal booster pumps can be powered by either an electric motor or a diesel engine, providing versatile and adaptable solutions for various operational needs.

Detailed Photos

Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
In the realm of multistage centrifugal pumps, a remarkable amount of thrust is generated due to the alignment of the impellers in a singular direction. To counteract this overwhelming force, a sophisticated thrust balance mechanism is ingeniously employed. This could be a balance disc or a balance drum, meticulously designed to minimize the thrust to an easily manageable level that can be handled by a standard-sized thrust bearing, ensuring efficiency and safety.
Our impellers boast a variety of robust material options including cast iron, cast steel, stainless steel, and bronze—each chosen for its superior durability and exceptional performance in demanding conditions.
Flexible Couplings
Flexible couplings offer a superior solution compared to their rigid counterparts, as they can adeptly accommodate movements such as vibrations and thermal expansion without sustaining damage. This makes them ideal for scenarios where some misalignment between the drive and pump shafts is inevitable. Their ability to absorb vibrations not only reduces excessive operating noise but also enhances machinery lifespan. While these couplings are more complex and costly, their design ensures protection for shafts and bearings from damage and wear, leading to significant maintenance savings over time.
We proudly utilize wear-resisting disc coupling or pin coupling to ensure optimal performance and longevity in demanding applications.
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
Packing seals have long been revered as the quintessential sealing solution. These seals leverage rope-like materials to closely wrap around the pump shaft, effectively filling dead space and minimizing fluid loss. However, as the material wears over time, the effectiveness in preventing fluid loss diminishes, potentially affecting lubrication and ease of replacement.

Mechanical seals take precedence over traditional packing seals in applications where leakage must be meticulously controlled. Renowned for their enhanced durability, these seals are engineered to withstand significant stress. Basic mechanical seals employ multiple sealing points, effectively minimizing leakage and ensuring a more reliable operation.

Product Parameters

Flow rate 6-1000m3/hr
Head rate 25-650m
Speed 1450-2900rpm
Medium temperature 0-105 ºC
Diameter 40-350mm
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations

Product Application


Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
Our cutting-edge Heavy Duty Centrifugal Water Pumps are the heart of modern pressure boosting systems. These pumps are essential in scenarios requiring a steady and reliable flow with high pressure. Here are some of the prominent and common projects where our horizontal multistage pumps excel:
Mine dewatering: Efficiently removing water from mining sites for safety and operational efficiency.
High density living: Ensuring adequate water supply and pressure in densely populated areas for comfort and convenience.
Snow making: Integral in creating artificial snow for ski resorts and winter attractions.
Boiler feed systems: Providing consistent and high-pressure water supply to boilers for optimal performance.
Reverse Osmosis: A key component in water purification systems, ensuring high-pressure delivery for effective filtration.
Industrial applications: Versatile and robust for a wide range of industrial processes requiring high-pressure water supply.
Condensate: Essential for handling and transporting condensate efficiently in various systems.
High pressure cleaning/wash down facilities: Delivering the necessary pressure for thorough and efficient cleaning operations.
Jacking pumps for fire hydrant systems: Providing reliable high-pressure water flow for emergency fire-fighting.
Irrigation and fire hose feel supply: Ensuring high-pressure water supply for agricultural irrigation and emergency fire hose operations.
Showers: Delivering consistent water pressure for a refreshing and invigorating shower experience.
Co generation: Supporting co-generation systems by providing necessary high-pressure water supplies.
Spray: Perfect for applications requiring high-pressure spray, from agriculture to cleaning.
Pressure Boosting: A pivotal element in any system needing enhanced water pressure for optimal performance.

Facilities & Equipments

Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations
Heavy Duty Centrifugal Water Pump for High Pressure Mining Operations

FAQ

A. What are the multi stage pump parts?
The multistage pump parts are very similar to those of the standard Centrifugal pump except for the Multistage Centrifugal pump where the additional parts are diffusers which efficiently channel the fluid into the eye of the impeller or to the following stage. In the side channel pump, there are intermediate plates with the scalloped side channel and liquid parts.
In multistage centrifugal pumps, because of the high thrust that is generated due to the impellers facing in the same direction, there will be a thrust balance device i.e balance disc or balance drum which reduces the thrust to a level which can be managed by a standard sized thrust bearing.

B. How does a multi stage pump work?
A multistage pump operates by one impeller feeding into the next impeller and the number of impellers required depend on the discharge pressure requirement. Liquid enters the pump and then passes through the various number of impellers in a sequence from the left to right.

C. What are the applications and uses for multi stage pumps?
The applications for multi stage pumps are many and varied and can be used for delivering water to high rise buildings, reverse osmosis (RO), boiler feed water, spraying, high pressure cleaning, water works, heating, condensate, fuel delivery, oil and gas production, power generation & mining and other high pressure and temperature applications..

D. What are the different types of multi stage pumps?
Types of multistage pumps include;
Horizontal Multistage Centrifugal pump (above ground)
Vertical Multistage Centrifugal pump (above ground)
Submersible/Sump pump types
Side Channel pump
Combination pumps i.e Centrifugal low NPSH first stage with side channel additional stage.
Horizontal split case pump
Vertical Turbine pump
Sanitary Multistage pump

E. What are the advantages of using a multi stage pump?
If we were to compare the Centrifugal multi stage pump to a high pressure duty pump - the Centrifugal multi stage pump even though it is more complex and costly, it would probably be a better hydraulic fit, have a better efficiency and be more reliable. With its hydraulic modules, the ability to supply additional impellers and its ability to trim those impellers, the duty point can me met exactly without compromise. The selection is more likely to be close to 'BEP' and will run efficiently and reliably.
Multi stage pumps can be configured to have an interstage bleed off if there are multiple duty points required. It may be possible to run a multistage pump at a lower speed than a single stage centrifugal pump which may offer an efficiency advantage but it will certainly run much quieter which is an important consideration in today's world. A 3 dBA increase represents a doubling of sound as the sound scale is logarithmic.

F. What is difference between a single stage and a multi stage pump?
A single stage pump uses one impeller whereas a multi stage pump uses 2 or more impellers (some manufacturers use 80 or more impellers).
There are additional components in a multi stage pump which are required for channelling the fluid from the first stage to the following stage i.e diffusers.
Multi stage pumps have a thrust balance device and there may also be intermediate bearings (lubricated by the pumpage) to steady the shaft plus other minor differences.

G. How do you read a multistage pump curve?
You read a multi stage pump curve in exactly the same way as you read any other pump type curve however some manufacturers will publish single stage curves which means that this has to be multiplied out to establish the number of stages required, however be aware that the side channel pumps have their maximum power at zero flow and the power decreases with increasing flow which is the reverse of a centrifugal pump.

H. What is the difference between a vertical multistage pump and a horizontal multistage pump?
The main differences between a vertical multi stage pump and a horizontal multi stage pump are;
1.The orientation of the pump
2.The vertical multi stage pump is above ground and may be used where there are space limitations however the motor needs to be removed before maintenance can be performed.
3.Vertical multi stage pumps are used in some applications where the motor needs to be lifted from the sump so that the unit can be maintained. It is common in vertical pumps for the thrust load to be taken by the motor e.g. VTP turbine pumps which have electric motors specifically designed for this type of pump to eliminate the need for a thrust bearing in the pump resulting in less complexity and costs. VTP pumps can be produced with column lengths of more than 100 metres.
4.Horizontal multi stage pumps are mounted using feet which for high temperature applications are a special design to allow for thermal growth and thus avoid operating issues due to expansion and contraction. They would need to be aligned with the electric motor. On vertical pumps, the mounting is perhaps simpler i.e for sump pumps, a support plate would be fixed with standard bolting and generally no alignment is required as the motor is flanged and it is self aligning with the corresponding register.

I. Which type of multistage pump is more commonly used in industry?
The most common type of multi stage pump used in Industry is the horizontal multi stage pump and vertical multi stage pump (above ground) mounted centrifugal pumps. However, multi stage side channel pumps would also be relatively common along with the vertical turbine pumps.

SEMHAI can offer a full range of Flowserve's Multi stage pumps.We provide localised technical support & on-site service engineering to support your operational needs.

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