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ACS 1000 variable speed drives improve efficiency of CHP power plant
The boiler feed-water pumps at Helsinki Energy‘s CHP plant were controlled by wound-rotor motors with slip recovery control system. In order to reduce maintenance costs and further improve the plant‘s efficiency, the pump drive systems were upgraded with four ACS 1000 variable speed drive systems from ABB (each rated at 4500 kW).
Revision Date: 9/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, ABB, Variable Frequency Drive, Boiler Feedwater Pump, Efficiency, Boiler Feedwater Treatment, Finland
Tutorial on Steam Turbine Drivers for Fossil and Nuclear Feed Pump Applications
This paper presents an overview of the operation and design of steam turbines used for driving reactor and boiler feed pumps.
Revision Date: 9/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221113 - Nuclear Electric Power Generation * , Siemens, Steam Turbine, Boiler Feedwater Pump, Boiler Feedwater Treatment
Make-Up Water Treatment by Service Contract
The basis for this brochure is an article written in 1997 describing the development of mobile water treatment units beginning in the 1960s. The brochure includes a number of emergency and longer term applications for mobile treatment units for boiler feedwater make-up and process steam make-up.
Revision Date: 9/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, GE, Mobile Equipment, Ultrapure Water, Boiler Feedwater Treatment
VFD at the Hainan Yangpu 220 MW GTCC
This paper discusses the application of variable frequency drives (VFD) in the high-pressure water feeding system of boilers serving Units 11 through 13 of a combined cycle section of the Hainan Yangpu Thermal Power Plant. The article is written by the plant engineer responsible for the operation and maintenance of the system. In the first year of operation there were severe problems with the valve caused in part by inability to measure the outlet pressure of the BFP system and it was determined that a solution lay with replacing the hydraulic coupling with VFD.
Revision Date: 9/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, Siemens, KSB, Boiler Feedwater Pump, Variable Frequency Drive, Boiler Feedwater Treatment, Flow Control, China
The reducing environment produced by oxygen scavengers initiates and propagates flow-accelerated corrosion (FAC) in the feedwater system and other components of high-pressure steam generators, including heat recovery steam generators (HRSGs). Since 1986, FAC-induced attack has caused numerous failures, some with fatalities, at a number of power plants in the U.S. Yet, specifications for many new power plants both domestically and globally, and in which the condensate/feedwater system contains no copper alloys, continue to call for oxygen scavenger feed to the condensate. This document is a response to this misguided trend.
Revision Date: 8/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, Kiewit, Boiler Feedwater System, Heat Recovery Steam Generator, Ultrapure Water, Corrosion, Demineralization, Boiler Feedwater Treatment, Degasification
Providing Israeli Utility With Demineralized Water
The Israel Electric Company, which chose to convert some of its inland power generation stations to use natural gas, needed a high-quality source of demineralized water to generate steam for the high-pressure boilers and inject UPW in their gas turbines for NOx reduction in its combined-cycle power stations.
Revision Date: 8/20/2014
Tags: 221112 - Fossil Fuel 化石燃料, RWL Water, Ion Exchange, Demineralizer, Activated Carbon, Electrodialysis, Electrodeionization, Reverse Osmosis, Ultrapure Water, Nox Control, Boiler Feedwater Treatment, Demineralization, Israel
MHI and Shenyang Pump Co., Ltd. (SPC) have agreed to establish a joint venture company (JV) in Shenyang, Liaoning Province, China to conduct sales and engineering relating to pumps. The agreement was signed on March 23, 2006, in Shenyang. With establishment of the JV, MHI aims to make a full-scale entrance into the Chinese pump market, where demand for pumps of all kinds is expected to increase vigorously.
Revision Date: 8/19/2014
Tags: 221112 - Fossil Fuel 化石燃料, Mitsubishi Heavy Industries, Sheyang Pump, Boiler Feedwater Pump, Flow Control, Boiler Feedwater Treatment, China
Sulzer high pressure barrel casing pump designed for boiler feedwater
The HPT is a pump specifically designed for boiler feed applications in thermal power stations. The pumps are optimized to provide high-efficiency operation over an extended period of time, thus reducing operating and maintenance costs.
Revision Date: 8/19/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, Sulzer Ltd., Boiler Feedwater Pump, Flow Control, Boiler Feedwater Treatment
MHI supplies ring section boiler feedwater pumps for combined cycle operation
MHI supplies a variety of pumps for combined cycle and coal fired power plants. Several boiler feedwater designs are available depending on pressures and other parameters. The ring section type is used in combined cycle.
Revision Date: 8/19/2014
Tags: 221112 - Fossil Fuel 化石燃料, Mitsubishi Heavy Industries, Boiler Feedwater Pump, Flow Control, Boiler Feedwater Treatment, China
Flowserve Boiler Feedwater pumps have beneficial features
This brochure describes pumps offered by Flowserve for combined cycle applications. Flowserve models DMX and WXH are commonly used for boiler feedwater to handle high pressures and fairly high flow rates. Flowserve models APKD and VPC are commonly used for condensate services.
Revision Date: 8/19/2014
Tags: 221112 - Fossil Fuel 化石燃料, Flowserve, Boiler Feedwater Pump, Pump, Schematic, Boiler Feedwater Treatment, Flow Control
The Sandardized Sulzer Pumps MD Range Meets CCGT Boiler Feed Requirements
Although most once-through HRSGs are sub-critical, their BFPs have to provide very high pressure. In order to increase pressure, BFPs have more stages and shafts with higher torque capacity than conventional pumps. The Sulzer MD range meets these requirements.
Revision Date: 8/19/2014
Tags: 221112 - Fossil Fuel 化石燃料, Sulzer Ltd., Boiler Feedwater Pump, Boiler Feedwater Treatment
Fully Automating HRSG Feedwater Pumps
Modern distributed control system platforms can provide many tools to capture best operating practices and automate them. This case study shows the steps taken to automate a hypothetical simplified feedwater pump system for a combined-cycle power plant. It describes a combination of control automation strategies and human-machine interface techniques designed to increase the overall level of automation while improving ease of use.
Revision Date: 8/18/2014
Tags: 221112 - Fossil Fuel 化石燃料, Siemens Energy, Distributed Control System, Boiler Feedwater Pump, Boiler Feedwater Treatment, Automation, Power Magazine
Hach Supplies Instruments to Measure Boiler Feedwater Quality
The performance of the degasification and demineralization system is dependent on accurate measurement of oxygen and other parameters. Hach supplies a variety of instruments to accurately measure the important parameters
Revision Date: 8/18/2014
Tags: 221112 - Fossil Fuel 化石燃料, Hach, Degasification, Boiler Feedwater Monitoring System, Demineralizer, Schematic, Monitoring, Degasification, Boiler Feedwater Treatment, Demineralization
Lots of Pumps used in Power Plants according to Hot Topic Speakers
This webinar covers pumps used in a variety of gas turbine combined cycle operations including fogging, boiler feedwaetr, condensate return, cooling, and lubrication. Here is a summary of a previous webinar on this subject plus links to the the new presentations.
Revision Date: 8/8/2014
Tags: 221112 - Fossil Fuel 化石燃料, 221114 - Solar Power , 221117 - Biomass Power , Flowserve, McIlvaine, Boiler Feedwater Pump, Pump, Boiler Feedwater Treatment, Flow Control
Improved Reliability of High-AVT (High-pH Water Treatment) Application to Combined Cycle Plants
Generally in the water treatment of combined cycle plants, ammonia and hydrazine are used in the feedwater system and phosphates are used in the boiler system. However, in Mexico, the Tuxpan No. 2 and No. 5 power plants have adopted “High-AVT (high-pH water treatment),” in which ammonia is used to set the pH of feedwater higher than the conventional level, requiring no phosphates in the boiler system. In response to such good operational results, MhI introduced high-AVT as an option for the water treatment of combined cycle plants.
Revision Date: 12/31/2013
Tags: 221112 - Fossil Fuel 化石燃料, Mitsubishi Heavy Industries, Ammonia, Treatment Chemicals, Phosphate, Boiler Feedwater Treatment, Water Treatment, Mexico