Application of PE 600-300-5 feed pump
This is a special type of booster pump that supplies superheated water to stationary boilers of TPP power units, as well as waste-heat boilers of power plants with combined-cycle and steam-power installations with a working pressure up to 6.2 MPa (63 kgf/cm²). Maximum capacity is 600 m³/h and head – 3290 m.
It is also very important to consider that the allowable cavitation margin for this pump is 100 m. Therefore, this important parameter must be taken into account when designing the feed system or selecting equipment.
Main requirements for the design of feed pumps for steam boilers PE 600-300-5:
- High reliability and efficiency;
- Allow free thermal expansion of stator and rotor elements without disrupting their mutual alignment and the pump alignment with the drive;
- External tightness and absence of internal leakages at the rotor and stator joints;
- Long service life – 15,000–30,000 hours (if all maintenance rules are followed);
- Protection against reverse flow of feedwater;
- Dynamic stability throughout the operating range;
- Stable continuously declining head curve;
- Ease of assembly, disassembly, maintenance, and high maintainability under operating conditions.
The PE 600-300-5 feed pump belongs to high-power hydraulic machines. The nominal power of the drive used with it should be within 8000 kW, equivalent to an electric motor.
In domestic and foreign power engineering, turbine drives are predominantly used for high-power feed pumps (N>8,000 kW), providing a range of operational advantages. Such pumps are mainly used in power units with a capacity of 300 MW and above. In units up to 200 MW, electric drive feed pumps are most common.
As a drive for the PE 600-300-5 feed pump, an electric drive in the form of an asynchronous motor with frequency converter control is most often used. The nominal pump speed is 6300 rpm. The overall system efficiency is 80%.
Structural Features of the PE 600-300-5 Feed Pump
- Double-Casing Sectional Multistage Design: The PE 580-195-5 pump features a double-casing sectional multistage design. This ensures high reliability in operation and ease of maintenance.
- External Sleeve Bearings: Using external sleeve bearings as supports improves pump stability and reliability. These bearings reduce wear and increase the maintenance interval.
- Thermal Expansion Compensation: The hydraulic machine components are designed to effectively compensate for thermal expansion of the feedwater during operation, improving efficiency and reliability under varying temperatures.
- “Flexible Shaft” Rotor: The pump rotor has a so-called “flexible shaft,” with a diameter-to-length ratio of 1:20. This requires high technological precision and strict quality control during manufacturing, ensuring rotor strength and durability.
- Hydraulic Thrust for Axial Force Relief: Axial forces of the pump unit are compensated by a hydraulic thrust – a universal and coordinated mechanism that provides effective axial force compensation evenly and reliably across all operating conditions.
Dimensions and Weight of PE 600-300-5 Pump
The PE 600-300-5 feed pump is high-capacity, therefore it has significant mass and size. The weight of the pump alone is 8000 kg. The total weight of the unit is 31,350 kg. Overall dimensions of the assembled unit are 8650 × 2000 × 2130 mm.
Material Execution of PE 600-300-5 Pumps by CHT Slovakia s.r.o.
The PE 600-300-5 pump construction uses high-quality materials to ensure reliability and durability. The outer casing is made of carbon steel with anti-corrosion overlay in high-wear areas. Main components such as sections, impellers, discharge cover, and working wheels are made of steel 20Х13, providing high strength and corrosion resistance. The pump shaft is made of heat-treated steel 40Х, ensuring high strength and wear resistance. These materials are selected to maximize pump performance and reliability.
Additional Supply Options for PE 600-300-5 Pumps by CHT Slovakia s.r.o.
- Mechanical Seals: PE 600-300-5 pumps can be equipped with mechanical seals replacing traditional gland seals. This improves operation, increases reliability, and reduces leakage, which is important for system efficiency.
- Bearings in Pumped Medium: Using bearings that operate directly in the pumped medium simplifies maintenance and reduces material consumption, increasing maintenance intervals and cost-effectiveness.
- VDS Monitoring System: The pump can be equipped with a VDS monitoring system including vibration, axial displacement, rotation speed, and temperature sensors. This allows data collection, analysis, and storage for timely detection of potential issues and maintenance planning.
- Stainless Steel Flow Path with Anti-Corrosion Overlay: To increase reliability, the pump stator flow path can be made of stainless steel with anti-corrosion overlay in critical areas. The rotor is also made of stainless steel, ensuring high resistance to corrosion and wear, extending pump service life.
How to Buy PE 600-300-5 Feed Pump from Manufacturer
To order a pump or receive consultation for selection, contact the managers of our sales department by phone listed on the website or submit an inquiry via the feedback form. We will get back to you as quickly as possible.
We deliver products to all CIS countries (except Russia and Belarus) and Europe. Installation dimensions of packed pumps can be obtained from managers. All pumps are packed and arranged for convenient transportation by road or rail.
