Product Green Positioning Shows Hardcore Strength丨Liancheng Dalian Plant OTC Feed Water Pump: Helps Bangladesh’s Largest Monolithic 800MW Gas Turbine Power Plant

The Rupsha 800MW Combined Cycle Power Plant Project (Khulna) is the largest single gas turbine power plant EPC project in Bangladesh. Located in Khulna City, Bangladesh, the site is only 7.7 kilometers away from the city of Khulna.

The investor and the owner are Bangladesh Northwest Power Generation Co., Ltd. (NWPGCL), and the EPC general contractor is the consortium of Shanghai Electric Group Co., Ltd. (SEC) and Italy’s Ansaldo (AEN), and Fujian Yongfu Electric Power Design Co., Ltd. (YONGFU) For the project survey and design unit.The 800MW gas turbine combined cycle power station project in Bangladesh Rupusha includes two “F”-class (Alstom GT26) gas turbines, two gas turbine generators, two waste heat boilers, two direct air-cooled steam turbines and two steam turbine generators. The power plant uses natural gas as the main fuel and high-speed diesel HSD as the backup fuel. The power of the power plant is sent out of the line with 230kV double loops and connected to the southern substation of PGCB National Grid Khulna.

The OTC feed water pump of the 800MW gas turbine combined cycle power station in Bangladesh Rupusha is used for continuous water supply to the gas turbine OTC and to provide desuperheating water to the OTC desuperheater and pressure reducer (see Figure 3). There are two units in total, each unit is equipped with 2 100% capacity OTC feedwater pumps, one running and the other standby. Delivery medium name: OTC water supply; PH value: 9.2~9.6; hardness: 0mmol/l; conductivity: ≤ 0.3ms/cm; oxygen content: ≤ 7mg/l; iron ions: ≤ 20 mg/l; copper ions ：≤ 5mg/l; Containing silicon dioxide: ≤ 20mg/l.

In the combined cycle operation of the unit, the feedwater from the waste heat boiler (HRSG) high-pressure economizer enters the high-pressure OTC, and the heat released by the recovered hot air enters the steam-water circulation system.

The OTC feed water pump is required to meet various operating conditions of gas turbine OTC. When the running pump accidentally trips, the standby pump can be put into operation automatically. In order to meet the special requirements of start-up, shutdown and test conditions, it can be manually operated on site, and is equipped with a DCS remote control interface in the unit control room.

The 4 OTC feedwater pumps in the 800MW gas turbine combined cycle power station in Rupsha, Bangladesh were purchased by Shanghai Electric Group Co., Ltd. (SEC) through bidding. After multiple rounds of technical communication, video Q&A, and business negotiations, they finally became a group. The SLDT multi-stage centrifugal pump designed and developed by the Dalian plant has announced its winning bid.

The OTC feed water pump uses the API610-BB4 two-end supporting single-shell radially split horizontal multi-stage centrifugal pump designed and developed by the Dalian plant of Liancheng Group. Its model is SLDT80-260D×9 multi-stage centrifugal pump.
OTC feed water pump, the operation of this station pump is related to the safety of the entire device, and the requirements for safety and stability are very high.

For OTC feedwater pumps, the first thing to consider is the advanced nature, maturity, safety and reliability of the pump, and in-depth technical exchanges, consultations and investigations are required. OTC feed water pump is the key equipment of 800MW gas turbine combined cycle power station. Only by choosing excellent suppliers and optimized design and manufacturing technology can the continuous operation of power equipment be ensured, the maximization of corporate interests and the long-term cycle of 800MW gas turbine power station run.

The successful bidding of the OTC feedwater pump for Rupsha 800MW gas turbine combined cycle power station in Bangladesh indicates that the company’s OTC feedwater pump in the field of gas-fired power generation has been fully recognized by customers for its comprehensive strength improvement, and further consolidated the company’s technological leadership in the industry. Enhance market competitiveness.

In addition, the SLDT series BB4 multi-stage centrifugal pump designed and developed by the Dalian plant of Liancheng Group has been successively used in the coking project of Shanxi Lubao Group Co., Ltd. to support the dry quenching waste heat boiler feed water pump (boiler water temperature T=158℃), and Cathay Zhongke Clean The waste heat boiler feed water pump (boiler water temperature T=120-130℃) and other engineering projects in the power generation project of Energy Technology Co., Ltd.

In short, based on the concept of green development, meticulous organization, lean management, continue to provide customers with first-class services, work with customers to create clean, low-carbon, safe and efficient energy, continue to take the road of high-quality energy development, and continue to create high-quality clean, low-carbon green projects It is the unchanging goal and purpose of the Dalian plant of Liancheng Group.